High-altitude pressure kettleTechnical Field
The utility model relates to the technical field of kettles, in particular to a high-altitude voltage kettle.
Background
The air in the plateau area is thin, the atmospheric pressure is small, the boiling point of water is reduced along with the elevation, the boiling point of water can not reach 100 ℃, for example, the boiling point of water in the pizza area is only 87 ℃, the ideal inactivating temperature can not be reached, the purposes of sterilizing and disinfecting at high temperature can not be achieved without boiling water, certain bacteria can not be killed, the content of harmful substances can not be reduced, the water is unfavorable for the health of human body after long-term drinking, and adverse reaction is easy to be caused, so that the development of a kettle capable of boiling water in a low-pressure state is needed at present.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a high-altitude pressure kettle.
The utility model is realized by the following technical scheme: the utility model provides a high altitude pressure kettle, includes kettle body and pot lid, the pot lid includes the lid mount pad, install relief valve, working valve, knob body, knob transmission seat in the lid mount pad, and be used for fastening or unclamping the fastening structure of kettle body and pot lid; the knob body is arranged on the knob transmission seat and drives the knob transmission seat to rotate; the inner end of the fastening structure is positioned in the knob transmission seat, is connected with the knob body and driven by the knob body, and rotates along with the knob body, and the outer end of the fastening structure clamps or loosens the structure of the kettle body; the kettle body is provided with a pouring nozzle along the pressing direction, the kettle cover is provided with a pouring nozzle and a water outlet, the pouring nozzle is aligned to the pouring nozzle, and the working valve is controlled by the knob transmission seat to be propped against and sealed or open the water outlet; the safety valve is detachably and movably arranged in the cover mounting seat, the lower end of the safety valve is communicated with the interior of the kettle, and the upper end of the safety valve is communicated with the exterior of the kettle.
The safety valve is arranged, so that the functions of exhausting and releasing pressure in the kettle can be realized; the working valve is matched with the safety valve, so that the kettle is kept airtight, the pressurizing and pressure maintaining functions are realized, the temperature in the kettle is increased, the high boiling point is achieved, and boiled water is obtained. The fastening structure is arranged to fasten the kettle cover and the kettle body, so that the kettle is in a closed state. The knob body and the knob transmission seat can control the fastening structure and the working valve.
The cover mounting seat comprises a cover lower seat, a cover upper seat and a kettle opening sealing ring, wherein the cover lower seat is buckled with the cover upper seat up and down, and the kettle opening sealing ring is placed on the outer edge of the cover lower seat and clamped between the cover lower seat and the cover upper seat; the knob transmission seat is arranged at the lower end of the knob body, the knob transmission seat and the lower end of the knob body are positioned between the lower cover seat and the upper cover seat, and the upper end of the knob body extends out of the kettle; the working valve and the safety valve are clamped between the lower cover seat and the upper cover seat; the knob transmission seat is provided with a special-shaped eccentric groove, the inner end of the fastening structure is provided with a cylinder, and the cylinder is clamped in the special-shaped eccentric groove and slides along the special-shaped eccentric groove; the outer end of the fastening structure is arranged in the sliding groove in a penetrating way and slides along the sliding groove to fasten or loosen the structure of the kettle body; the knob transmission seat is provided with an exhaust top position for triggering the working valve to lift up and realize the exhaust function, and is also provided with a first water pouring pressure position for triggering the working valve to open the water outlet to realize the water pouring function.
The knob transmission seat is of a cylindrical structure with an opening at the upper end, three special-shaped eccentric grooves are formed in the bottom of the knob transmission seat, one end of each special-shaped eccentric groove extends along the inner wall of the cylindrical structure of the knob transmission seat, and the other end of each special-shaped eccentric groove extends obliquely towards the inner side of the bottom; three fastening structures are correspondingly arranged, and an included angle of 120 degrees is formed between every two of the three fastening structures; the center of the bottom of the knob transmission seat is protruded to form an installation seat, a first installation hole is formed in the center of the installation seat, and positioning columns are respectively arranged on two sides of the first installation hole; a second mounting hole is formed in the center of the lower end of the knob body, and positioning holes are respectively formed in two sides of the second mounting hole; the knob body further comprises a positioning bolt which passes through the first mounting hole and the second mounting hole from bottom to top and is locked by a nut; the positioning column is sleeved in the positioning hole. The two ends of the special-shaped eccentric groove form an included angle with inclination, so that an eccentric groove position is formed, and the fastening structure can be stretched. The positioning column is sleeved in the positioning hole, and force is transmitted to the positioning column through rotation of the knob body to drive the knob transmission seat to rotate.
The periphery of the knob transmission seat is provided with a pair of limiting blocks, the limiting blocks are longitudinally arranged on the side wall of the knob transmission seat side by side, a safety valve limiting concave surface is formed between the two limiting blocks, and the safety valve is positioned in the safety valve limiting concave surface; the lower side of the cover upper seat is provided with a positioning groove, the upper side of the cover lower seat is provided with a connecting column, and the positioning groove is fixed with the connecting column through a bolt; the lower cover seat is provided with a working valve hole, and the working valve is fixed in the working valve hole; the safety valve is positioned in the limit concave surface of the safety valve, and the limit piece can restrict the rotation range of the knob transmission seat to avoid overlarge rotation amplitude; the positioning groove is locked with the connecting column through a bolt, so that the upper cover seat and the lower cover seat are fixed together;
The working valve comprises a valve seat, a support column, an upper valve sleeve, a valve core, an eccentric sleeve, a bolt, a first spring, a first sealing ring and a second sealing ring; the water outlet is arranged in the center of the valve seat and penetrates through the upper side and the lower side of the valve seat; the three support columns are arranged, the three support columns encircle the same round edge of the periphery of the water outlet and are fixed on the valve seat, and an included angle of 120 degrees is formed between every two adjacent support columns by taking the water outlet as the center; the upper part of the support column is provided with a bayonet, the top of the support column protrudes outwards to form a protruding part, and the three protruding parts jointly form a first protruding ring; the lower part of the upper valve sleeve is provided with three supporting pieces, the three supporting pieces are respectively opposite to the three supporting columns, clamping pieces are arranged on the supporting pieces, the supporting pieces of the upper valve sleeve are clamped on the inner sides of the supporting columns, and the clamping pieces are clamped in the bayonets; the valve seat and the support column pass through the working valve hole from bottom to top, the whole body formed by the upper valve sleeve, the valve core and the eccentric sleeve is connected with the valve seat after being assembled with the support column through the support piece, and the diameter of the first bulge loop is larger than the aperture of the working valve hole; the bayonet is matched with the clamping piece, so that the supporting piece is firmly connected with the supporting column; after the upper valve sleeve is connected with the valve seat, the diameter of the first bulge loop is larger than the aperture of the working valve hole, so that the working valve can be prevented from falling off as a whole;
The top of the upper valve sleeve is provided with a third mounting hole, the lower part of the valve core is provided with a circle of second raised ring, the lower end of the valve core is penetrated in the water outlet, the upper end of the valve core penetrates through the third mounting hole and then extends out of the top of the upper valve sleeve, and the diameter of the second raised ring is larger than that of the water outlet; the first sealing ring is sleeved on the lower part of the valve core and props against the lower side of the second bulge loop, and the first sealing ring props against or is far away from the upper side surface of the valve seat along with the movement of the valve core; the first spring is sleeved on the upper section of the valve core, the lower end of the first spring props against the upper side of the second bulge loop, and the upper end of the first spring props against the top of the inner side of the upper valve sleeve; the inner side of the outer edge of the valve seat is provided with a first annular groove, the second sealing ring is clamped in the first annular groove, the diameter of the outer edge of the valve seat is larger than that of the first annular groove, and the diameter of the second sealing ring is larger than that of the working valve hole; the first sealing ring is arranged, so that a sealing function can be formed on the water outlet, and water leakage and air leakage are prevented; the first spring is arranged to push the valve core downwards at any time to keep the sealing effect on the water outlet, and the valve core can automatically seal the water outlet after the end of air exhaust or water pouring; the second sealing groove is arranged and can seal the working valve hole;
The eccentric sleeve is positioned on the top surface of the upper valve sleeve, a fourth mounting hole penetrating the upper side and the lower side of the eccentric sleeve and a central hole penetrating the pair of side edges of the eccentric sleeve are formed in the eccentric sleeve, and the upper end of the valve core is penetrated in the fourth mounting hole and hinged to the eccentric sleeve through the bolt; the other group of opposite sides of the eccentric sleeve are respectively provided with a convex block protruding downwards and a pressing structure protruding outwards, the pressing structure comprises a second water pouring pressure position and an exhaust pressing position, the second water pouring pressure position is positioned at the upper part of the pressing structure, and the two sides of the second water pouring pressure position are respectively provided with a first inclined surface which is symmetrically arranged; the exhaust pressing position is positioned at the lower part of the pressing position structure, and second inclined surfaces which are symmetrically arranged are respectively arranged at two sides of the exhaust pressing position; the convex block is propped against the top surface of the upper valve sleeve; the exhaust top position is positioned at the lower part of the side wall of the knob transmission seat, the first water pouring pressure is positioned at the upper part of the side wall of the knob transmission seat, and the exhaust top position is positioned between the first water pouring pressure and the limiting block; when the knob transmission seat rotates, the first water pouring pressure position presses the first inclined surface of the second water pouring pressure position, or the exhaust top position presses the second inclined surface of the exhaust pressure position; the pouring mouth is arranged on the side wall of the upper cover seat, and the space between the lower cover seat and the upper cover seat is communicated with the outside of the kettle through the pouring mouth. The valve core is hinged on the eccentric sleeve through a bolt, when the exhaust top position jacks up the exhaust pressure position, the valve core can be integrally jacked up, so that the water outlet is opened, and gas in the kettle can be discharged out of the air through the water outlet and the water pouring port, so that the functions of exhausting and releasing pressure are realized; when the first water pouring pressure position extrudes the inclined plane of the second water pouring pressure position, one end of the eccentric sleeve can be pressed down, the other end of the eccentric sleeve is tilted, the valve core can not seal the water outlet, the working valve is of a non-closed structure, water can flow into the space between the lower cover seat and the upper cover seat through the water outlet, and then flows out from the water pouring opening, so that the water pouring function is realized.
The lower cover seat is also provided with a safety valve hole, and the safety valve is fixed in the safety valve hole; the safety valve comprises an upper valve body, a lower valve body, a second spring, a third sealing ring, a fourth sealing ring and a steel ball; the lower valve body comprises a valve body cap and a lower cylinder body connected to the valve body cap, and the outer end of the valve body cap is outwards protruded to form a circle of third protruded ring; a circle of second annular grooves are formed in the joint of the periphery of the lower cylinder body and the valve body cap, and the third sealing ring is sleeved in the second annular grooves; the upper part of the inner wall of the lower cylinder is provided with an internal thread, the lower cylinder is a cylinder with a hollow cavity, the valve body cap is provided with a first exhaust hole, and the first exhaust hole is communicated with the lower cylinder; the upper valve body comprises an upper cylinder body with a hollow cavity and an upper valve cap connected with the upper cylinder body, the diameter of the upper valve cap is smaller than that of the upper cylinder body, the upper valve cap is provided with a second exhaust hole penetrating the upper side and the lower side of the upper valve cap, the second exhaust hole is communicated with the hollow cavity of the upper cylinder body, and the lower end of the upper cylinder body is provided with external threads; the lower valve body passes through the safety valve hole from bottom to top, the upper valve body is connected with the lower valve body through the threaded connection of the external threads and the internal threads, the fourth sealing ring is installed in the hollow cavity of the lower cylinder, the steel ball and the second spring are placed in the hollow cavity between the lower cylinder and the upper cylinder, the lower end of the steel ball is propped against the fourth sealing ring, the upper end of the steel ball is propped against the lower end of the second spring, the upper end of the second spring is propped against the inner wall of the upper cylinder, and the lower side of the fourth sealing ring is propped against the bottom side of the hollow cavity of the lower cylinder; the diameter of the third sealing ring is larger than that of the safety valve hole, the upper end of the third sealing ring is propped against the lower side surface of the lower cover seat, and the lower end of the third sealing ring is propped against the upper side surface of the third bulge loop; the diameter of the upper section of the upper cylinder body is larger than that of the safety valve hole, and the diameter of the safety valve hole is larger than that of the lower cylinder body; the top of the upper valve cap passes through the hole position of the lower seat of the cover and then is exposed outside the kettle body. The valve body cap is matched with the third sealing ring, so that the safety valve hole can be sealed; the steel ball and the fourth sealing ring are matched to form a sealing effect on the first exhaust hole, when the pressure in the kettle exceeds a set value, the air pressure can jack the steel ball, and the air is exhausted out of the kettle from the second exhaust hole. The diameter of the upper section of the upper cylinder body is larger than that of the safety valve hole, so that the safety valve can be prevented from falling off; the distance from the fourth sealing ring to the upper cylinder body is the restriction range of lifting of the safety valve.
The protection plate is arranged on the lower cover seat around the working valve hole, two protection plates are arranged, and the working valve is positioned in the space between the two protection plates and the edge of the lower cover seat. The guard plate and the lower seat edge form a guard structure, so that the working valve is positioned in the guard structure and cannot move to the outside.
A circle of kettle opening buckling edges are arranged on the inner side of the kettle opening of the kettle body, the kettle opening buckling edges extend horizontally from the side wall of the kettle body towards the inside of the kettle and then are bent downwards to form vertical buckling edges, and the lower sides of the vertical buckling edges face the outside of the kettle body and are bent upwards to be folded on the outer side surfaces of the vertical buckling edges; the fastening structure is a sliding block, the outer end of the sliding block is provided with a sliding block body with an elliptic structure, and the upper side surface of the outer end of the sliding block body is flattened to form a tongue surface; the sliding groove is an elliptic sliding groove matched with the sliding block body, the sliding block body rotates along the knob body to extend outwards or shrink inwards along the sliding groove, and after the sliding block body extends outwards, the tongue surface is clamped on the vertical buckling edge of the kettle opening buckling edge. The tongue surface is clamped on the vertical buckling edge of the kettle opening, so that the kettle cover and the kettle body can be clamped tightly, and the falling of the kettle cover is avoided.
The periphery of the inner end of the sliding block body is provided with a circle of third annular groove, a fifth sealing ring is sleeved in the third annular groove, and the outer side of the fifth sealing ring is propped against the inner wall of the sliding groove. The arrangement of the fifth sealing ring can prevent redundant gaps from being generated between the sliding block body and the sliding groove, has good sealing performance and realizes pressure maintaining.
The cover plate is provided with a hole site for the top of the upper valve cap to penetrate, the cover plate is also provided with an operation mark, the operation mark comprises a cover opening mark, a water pouring mark, a stop mark, an exhaust mark and a pressurizing mark which are distributed in sequence, the cover opening mark is aligned with the hole site penetrated by the top of the upper valve cap, and the pressurizing mark is close to one side of the first water pouring pressure position; the knob body is provided with an indication mark, and when the knob body rotates and needs to be set to a certain working state, the indication mark faces to the operation mark corresponding to the working state.
The knob body is of a cylindrical structure with a cavity and an upward opening, the opening is recessed towards the outside of the knob body to form a circle of level, and a decoration panel for sealing the cavity of the knob body is arranged in the level; the knob body is characterized in that the outer part of the knob body extends upwards in an inclined mode from the middle section of the knob body, and the cross section structure of the knob body cut along the longitudinal direction is an inverted trapezoid structure. The longitudinal section structure of the knob body is of an inverted trapezoid structure, so that the kettle cover can be conveniently lifted and prevented from falling off.
Compared with the prior art, the utility model has the advantages that: the kettle is heated in an electric heating plate heating mode, the pressure is controlled by the temperature, the pressure in the kettle can be ensured, the water can be heated to an ideal 100 ℃ in a plateau environment, the temperature control device can control the pressure in the kettle, the problem that the pressure is overlarge and the people are injured by exhaust gas is solved; the kettle has various working states, and can realize the functions of pressurization, air exhaust, water pouring, cover opening, water adding and the like by rotating the knob on the cover surface under the condition of incompletely separating the cover from the kettle body, so that the use is convenient.
Drawings
FIG. 1 is a front view of an embodiment of the present utility model;
FIG. 2 is a top view of an embodiment of the present utility model;
FIG. 3 is a perspective view of an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of an embodiment of the present utility model taken longitudinally along the spout and handle;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a partial enlarged view at B in FIG. 5;
FIG. 7 is an enlarged view of a portion of FIG. 5 at C;
FIG. 8 is a top view of an embodiment of the utility model with the handle removed;
FIG. 9 is a cross-sectional view taken along the direction D-D of FIG. 8;
FIG. 10 is an enlarged view of a portion of FIG. 9 at E;
FIG. 11 is a schematic view of the embodiment of the utility model with the handle, spout and knob body removed;
FIG. 12 is a schematic view of the structure of the embodiment of the utility model with the handle, knob body and cover removed;
FIG. 13 is an enlarged view of a portion of the upper portion of FIG. 12;
FIG. 14 is a schematic view of a kettle lid according to an embodiment of the present utility model;
FIG. 15 is a top view of a kettle lid according to an embodiment of the present utility model;
FIG. 16 is a cross-sectional view taken along the direction G-G of FIG. 15;
FIG. 17 is a schematic view of the structure of FIG. 16 in a perspective direction;
FIG. 18 is a cross-sectional view taken along the direction F-F of FIG. 15;
FIG. 19 is a schematic view of the structure of FIG. 18 in a perspective direction;
FIG. 20 is a schematic view of the structure of FIG. 14 with the cap body removed from the cover plate;
FIG. 21 is a cross-sectional view of FIG. 20 taken along the longitudinal direction;
FIG. 22 is a top view of FIG. 20 with the seat cover removed;
FIG. 23 is a schematic view of the structure in the perspective direction of FIG. 22;
FIG. 24 is a schematic view of the structure of FIG. 22 in another direction;
FIG. 25 is a top view of the mating of the lower seat cover with a partial structure according to an embodiment of the present utility model;
FIG. 26 is a cross-sectional view taken along the direction H-H of FIG. 25;
FIG. 27 is a cross-sectional view taken along the direction I-I of FIG. 25;
FIG. 28 is a perspective view of the mating of the lower seat cover with a partial structure according to an embodiment of the present utility model;
FIG. 29 is a schematic view of the structure of FIG. 28 with the partial fastening structure removed;
FIG. 30 is a schematic view of a lower cover of the seat according to the embodiment of the present utility model;
FIG. 31 is a schematic view showing another direction of the lower cover of the seat according to the embodiment of the present utility model;
FIG. 32 is a top view of a knob housing according to an embodiment of the present utility model;
FIG. 33 is a perspective view of a knob assembly according to an embodiment of the present utility model;
FIG. 34 is a second perspective view of a knob assembly according to an embodiment of the present utility model;
FIG. 35 is a third perspective view of a knob assembly according to an embodiment of the present utility model;
FIG. 36 is one of the perspective views of the eccentric sleeve of the present utility model;
FIG. 37 is a second perspective view of an eccentric sleeve according to an embodiment of the present utility model;
FIG. 38 is a front view of an embodiment of a service valve of the present utility model;
FIG. 39 is a cross-sectional view taken along the J-J direction of FIG. 38;
FIG. 40 is a perspective view of a service valve according to an embodiment of the present utility model;
FIG. 41 is a schematic view of the valve core and eccentric sleeve assembly according to the present utility model;
FIG. 42 is a cross-sectional view of an embodiment of the service valve of the present utility model taken longitudinally;
FIG. 43 is a cross-sectional view of a safety valve according to an embodiment of the present utility model taken longitudinally;
FIG. 44 is a schematic structural view of a fastening structure according to an embodiment of the present utility model;
Figure 45 is a cross-sectional view of a fastening structure according to an embodiment of the present utility model taken along the longitudinal direction.
The meaning of the reference numerals in the figures: 1. a kettle body; 11. a water pouring nozzle; 12. a kettle opening is buckled; 2. a safety valve; 21. an upper valve body; 211. a second exhaust hole; 212. an upper cylinder; 22. a lower valve body; 221. a third raised ring; 222. a first exhaust hole; 23. a second spring; 24. a third seal ring; 25. a fourth seal ring; 26. a steel ball; 3. a working valve; 31. a valve seat; 311. a water outlet; 32. a support column; 321. a bayonet; 322. a boss; 33. an upper valve sleeve; 331. a support; 332. a clamping piece; 34. a valve core; 341. a second raised ring; 35. an eccentric sleeve; 351. a central bore; 352. a bump; 353. a second water pouring pressure position; 354. a discharge pressure position; 36. a plug pin; 37. a first spring; 38. a first seal ring; 39. a second seal ring; 4. a knob body; 41. positioning holes; 42. an indication mark; 43. a decorative panel; 5. a knob transmission seat; 51. a special-shaped eccentric groove; 52. a top position of the exhaust; 53. a first water reversing pressure position; 54. positioning columns; 55. a limiting block; 56. limiting concave surface of the safety valve; 6. a fastening structure; 61. a cylinder; 62. a slider body; 63. tongue surface; 64. a fifth seal ring; 7. a cover lower base; 71. a chute; 72. a connecting column; 73. a working valve bore; 74. a safety valve hole; 75. a protection plate; 8. covering the base; 81. a positioning groove; 82. a cover plate; 83. pouring gate; 9. and a sealing ring at the kettle mouth.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and detailed description.
Examples
Referring to fig. 1 to 45, a high-altitude pressure kettle comprises a kettle body 1 and a kettle cover, wherein the kettle cover comprises a cover mounting seat, and a safety valve 2, a working valve 3, a knob body 4, a knob transmission seat 5 and a fastening structure 6 for fastening or loosening the kettle body 1 and the kettle cover are arranged in the cover mounting seat; the knob body 4 is arranged on the knob transmission seat 5 and drives the knob transmission seat to rotate; the inner end of the fastening structure 6 is positioned in the knob transmission seat 5, is connected with the knob body 4 and driven by the knob transmission seat, and rotates along with the knob body 4, and the outer end of the fastening structure 6 clamps or loosens the kettle body 1; the upper edge of the kettle body 1 is pressed with a pouring nozzle 11, the kettle cover is provided with a pouring nozzle 83 and a water outlet 311, the pouring nozzle 83 is aligned with the pouring nozzle 11, and the working valve 3 is controlled by the knob transmission seat 5 to be propped against and sealed or open the water outlet 311; the safety valve 2 is detachably and movably installed in the cover installation seat, the lower end of the safety valve is communicated with the interior of the kettle, and the upper end of the safety valve is communicated with the exterior of the kettle.
The safety valve 2 is arranged, so that the functions of exhausting and releasing pressure can be realized in the kettle; the working valve 3 is matched with the safety valve 2, so that the kettle is kept airtight, has the functions of pressurizing and maintaining pressure, improves the temperature in the kettle, reaches a high boiling point, and obtains boiled water. The fastening structure 6 is arranged to fasten the kettle cover and the kettle body 1, so that the kettle can be in a closed state. The knob body 4 and the knob transmission seat 5 can control the fastening structure 6 and the working valve 3.
The cover mounting seat comprises a cover lower seat 7, a cover upper seat 8 and a kettle opening sealing ring 9, wherein the cover lower seat 7 and the cover upper seat 8 are buckled up and down, and the kettle opening sealing ring 9 is placed on the outer edge of the cover lower seat 7 and clamped between the cover lower seat 7 and the cover upper seat 8; the knob transmission seat 5 is arranged at the lower end of the knob body 4, the knob transmission seat 5 and the lower end of the knob body 4 are positioned between the lower cover seat 7 and the upper cover seat 8, and the upper end of the knob body 4 extends out of the kettle; the working valve 3 and the safety valve 2 are clamped between the lower cover seat 7 and the upper cover seat 8; the knob transmission seat 5 is provided with a special-shaped eccentric groove 51, the inner end of the fastening structure 6 is provided with a cylinder 61, and the cylinder 61 is clamped in the special-shaped eccentric groove 51 and slides along the special-shaped eccentric groove 51; the lower cover seat 7 is provided with a chute 71, and the outer end of the fastening structure 6 is arranged in the chute 71 in a penetrating way and slides along the chute to fasten or loosen the structure of the kettle body 1; the knob transmission seat 5 is provided with an exhaust top position 52 for triggering the working valve 3 to lift up and realize the exhaust function, and the knob transmission seat 5 is also provided with a first water pouring pressure position 53 for triggering the working valve 3 to open the water outlet 311 to realize the water pouring function.
The knob transmission seat 5 is of a cylindrical structure with an opening at the upper end, three special-shaped eccentric grooves 51 are formed in the bottom of the knob transmission seat, one end of each special-shaped eccentric groove 51 extends along the inner wall of the cylindrical structure of the knob transmission seat 5, and the other end of each special-shaped eccentric groove extends obliquely towards the inner side of the bottom; three fastening structures 6 are correspondingly arranged, and an included angle of 120 degrees is formed between every two of the three fastening structures 6; the center of the bottom of the knob transmission seat 5 is protruded to form a mounting seat, a first mounting hole is formed in the center of the mounting seat, and positioning columns 54 are respectively arranged on two sides of the first mounting hole; the center of the lower end of the knob body 4 is provided with a second mounting hole, and two sides of the second mounting hole are respectively provided with a positioning hole 41; the knob body 4 further comprises a positioning bolt which passes through the first mounting hole and the second mounting hole from bottom to top and is locked by a nut; the positioning column 54 is sleeved in the positioning hole 41. The two ends of the special-shaped eccentric groove 51 form included angles with inclination, and eccentric groove positions are formed, so that the fastening structure 6 can be stretched. The positioning column 54 is sleeved in the positioning hole 41, and force can be transmitted to the positioning column 54 through rotation of the knob body to drive the knob transmission seat 5 to rotate.
The periphery of the knob transmission seat 5 is provided with a pair of limiting blocks 55, the limiting blocks 55 are longitudinally arranged on the side wall of the knob transmission seat 5 side by side, a safety valve limiting concave surface 56 is formed between the two limiting blocks 55, and the safety valve 2 is positioned in the safety valve limiting concave surface 56; the lower side of the upper cover seat 8 is provided with a positioning groove 81, the upper side of the lower cover seat 7 is provided with a connecting column 72, and the positioning groove 81 is fixed with the connecting column 72 through a bolt; the lower cover seat 7 is provided with a working valve hole 73, and the working valve 3 is fixed in the working valve hole 73; the safety valve 2 is positioned in the safety valve limiting concave surface 56, and the limiting piece can restrict the rotation range of the knob transmission seat 5 to avoid overlarge rotation amplitude; the positioning groove 81 and the connecting column 72 are locked by bolts, so that the upper cover seat 8 and the lower cover seat 7 are fixed together;
The working valve 3 comprises a valve seat 31, a support column 32, an upper valve sleeve 33, a valve core 34, an eccentric sleeve 35, a bolt 36, a first spring 37, a first sealing ring 38 and a second sealing ring 39; the water outlet 311 is arranged at the center of the valve seat 31 and penetrates the upper side and the lower side of the valve seat; the three support columns 32 are arranged, the three support columns 32 encircle the same round edge of the periphery of the water outlet 311 and are fixed on the valve seat 31, and an included angle of 120 degrees is formed between adjacent support columns 32 by taking the water outlet 311 as the center; the upper part of the support column 32 is provided with a bayonet 321, the top of the support column protrudes outwards to form a protruding part 322, and the three protruding parts 322 jointly form a first protruding ring; the lower part of the upper valve sleeve 33 is provided with three supporting pieces 331, the three supporting pieces 331 are respectively opposite to the three supporting columns 32, the supporting pieces 331 are provided with clamping pieces 332, the supporting pieces 331 of the upper valve sleeve 33 are clamped on the inner sides of the supporting columns 32, and the clamping pieces 332 are clamped in the bayonets 321; the valve seat 31 and the support column 32 pass through the working valve hole 73 from bottom to top, the whole body formed by the upper valve sleeve 33, the valve core 34 and the eccentric sleeve 35 is connected with the valve seat 31 after being assembled with the support column 32 through the support piece 331, and the diameter of the first bulge loop is larger than the aperture of the working valve hole 73; the cooperation of the bayonet 321 and the clamping piece 332 makes the supporting piece 331 firmly connected with the supporting column 32; after the upper valve sleeve 33 is connected with the valve seat 31, the diameter of the first bulge loop is larger than the aperture of the working valve hole 73, so that the working valve 3 can be prevented from falling off as a whole;
The top of the upper valve sleeve 33 is provided with a third mounting hole, the lower part of the valve core 34 is provided with a circle of second raised ring 341, the lower end of the valve core 34 is penetrated in the water outlet 311, the upper end of the valve core penetrates through the third mounting hole and then extends out of the top of the upper valve sleeve 33, and the diameter of the second raised ring 341 is larger than that of the water outlet 311; the first sealing ring 38 is sleeved on the lower part of the valve core 34 and props against the lower side of the second raised ring 341, and the first sealing ring 38 props against or is far away from the upper side surface of the valve seat 31 along with the movement of the valve core 34; the first spring 37 is sleeved on the upper section of the valve core 34, the lower end of the first spring 37 is propped against the upper side of the second raised ring 341, and the upper end of the first spring 37 is propped against the top of the inner side of the upper valve sleeve 33; the inner side of the outer edge of the valve seat 31 is provided with a first annular groove, a second sealing ring 39 is clamped in the first annular groove, the diameter of the outer edge of the valve seat 31 is larger than that of the first annular groove, and the diameter of the second sealing ring 39 is larger than that of the working valve hole 73; the first sealing ring 38 is arranged to form a sealing function for the water outlet 311 to prevent water leakage and air leakage; the first spring 37 is arranged to push the valve core 34 downwards at any time to keep the sealing effect on the water outlet 311, and after the exhaust or pouring of water is finished, the valve core 34 automatically seals the water outlet 311; the second seal groove is arranged to seal the working valve hole 73;
The eccentric sleeve 35 is positioned on the top surface of the upper valve sleeve 33, the eccentric sleeve 35 is provided with a fourth mounting hole penetrating the upper side and the lower side of the eccentric sleeve 35 and a central hole 351 penetrating a pair of side edges of the eccentric sleeve 35, and the upper end of the valve core 34 is penetrated in the fourth mounting hole and hinged on the eccentric sleeve 35 through a bolt 36; the other group of opposite sides of the eccentric sleeve 35 are respectively provided with a convex block 352 protruding downwards and a pressing position structure protruding outwards, the pressing position structure comprises a second water pouring pressure position 353 and an exhaust pressing position 354, the second water pouring pressure position 353 is positioned at the upper part of the pressing position structure, and the two sides of the second water pouring pressure position 353 are respectively provided with a first inclined surface which is symmetrically arranged; the air exhaust pressure position 354 is positioned at the lower part of the pressure position structure, and the two sides of the air exhaust pressure position are respectively provided with second inclined surfaces which are symmetrically arranged; the projection 352 abuts the top surface of the upper valve housing 33; the exhaust top position 52 is positioned at the lower part of the side wall of the knob transmission seat 5, the first water pouring pressure position 53 is positioned at the upper part of the side wall of the knob transmission seat 5, and the exhaust top position 52 is positioned between the first water pouring pressure position 53 and the limiting block 55; when the knob transmission seat 5 rotates, the first water pouring pressure position 53 presses the first inclined surface of the second water pouring pressure position 353, or the exhaust top position 52 presses the second inclined surface of the exhaust pressure position 354; the water pouring port 83 is arranged on the side wall of the upper cover seat 8, and the space between the lower cover seat 7 and the upper cover seat 8 is communicated with the outside of the kettle through the water pouring port 83. The valve core 34 is hinged on the eccentric sleeve 35 through the bolt 36, when the exhaust top position 52 jacks up the exhaust pressure position 354, the valve core 34 can be integrally jacked up, so that the water outlet 311 is opened, and the gas in the kettle can be discharged out of the air through the water outlet 311 and the water pouring port 83, so that the functions of exhausting and releasing pressure are realized; when the first water pouring pressure position 53 presses the inclined surface of the second water pouring pressure position 353, one end of the eccentric sleeve 35 can be pressed down, the other end of the eccentric sleeve 35 is tilted, the valve core 34 cannot seal the water outlet 311, the working valve 3 is of a non-closed structure, and water can flow into the space between the lower cover seat 7 and the upper cover seat 8 through the water outlet 311 and then flows out of the water pouring opening 83, so that the water pouring function is realized.
The lower cover seat 7 is also provided with a safety valve hole 74, and the safety valve 2 is fixed in the safety valve hole 74; the safety valve 2 comprises an upper valve body 21, a lower valve body 22, a second spring 23, a third sealing ring 24, a fourth sealing ring 25 and a steel ball 26; the lower valve body 22 comprises a valve body cap and a lower cylinder body connected to the valve body cap, and the outer end of the valve body cap protrudes outwards to form a circle of third protruding rings 221; a circle of second annular groove is arranged at the joint of the periphery of the lower cylinder body and the valve body cap, and a third sealing ring 24 is sleeved in the second annular groove; the upper part of the inner wall of the lower cylinder is provided with an internal thread, the lower cylinder is a cylinder body of a hollow cavity, the valve body cap is provided with a first exhaust hole 222, and the first exhaust hole 222 is communicated with the lower cylinder body; the upper valve body 21 comprises an upper cylinder 212 with a hollow cavity and an upper bonnet connected with the upper cylinder, the diameter of the upper bonnet is smaller than that of the upper cylinder 212, the upper bonnet is provided with a second exhaust hole 211 penetrating the upper side and the lower side of the upper bonnet, the second exhaust hole 211 is communicated with the hollow cavity of the upper cylinder 212, and the lower end of the upper cylinder 212 is provided with external threads; the lower valve body 22 passes through the safety valve hole 74 from bottom to top, the upper valve body 21 is connected with the lower valve body 22 through the threaded connection of the external thread and the internal thread, the fourth sealing ring 25 is arranged in the hollow cavity of the lower cylinder, the steel ball 26 and the second spring 23 are placed in the hollow cavity between the lower cylinder and the upper cylinder 212, the lower end of the steel ball 26 abuts against the fourth sealing ring 25, the upper end of the steel ball 26 abuts against the lower end of the second spring 23, the upper end of the second spring 23 abuts against the inner wall of the upper cylinder 212, and the lower side of the fourth sealing ring 25 abuts against the bottom side of the hollow cavity of the lower cylinder; the diameter of the third sealing ring 24 is larger than that of the safety valve hole 74, the upper end of the third sealing ring 24 is propped against the lower side surface of the cover lower seat 7, and the lower end of the third sealing ring is propped against the upper side surface of the third bulge loop 221; the diameter of the upper section of the upper cylinder 212 is greater than the diameter of the safety valve hole 74, and the diameter of the safety valve hole 74 is greater than the diameter of the lower cylinder; the top of the upper valve cap passes through the hole position of the lower cover seat 7 and the hole position of the upper cover seat 8 and then is exposed outside the kettle body. The valve body cap cooperates with the third seal ring 24 to seal the relief valve orifice 74; the steel ball 26 and the fourth sealing ring 25 cooperate to form a sealing effect on the first exhaust hole 222, when the pressure in the kettle exceeds a set value, the air pressure can jack the steel ball 26, and the air is exhausted out of the kettle from the second exhaust hole 211. The diameter of the upper section of the upper cylinder 212 is larger than that of the safety valve hole 74, so that the safety valve 2 can be prevented from falling off; the distance from the fourth seal ring 25 to the upper cylinder 212 is a restriction range for lifting and lowering the safety valve 2.
The guard plate 75 is installed on the lower cover seat 7 around the working valve hole 73, two guard plates 75 are arranged, and the working valve 3 is located in the space between the two guard plates 75 and the edge of the lower cover seat 7. The guard plate 75 forms a guard structure with the edge of the lower cover seat 7 so that the working valve 3 is located in the guard structure and does not move to the outside.
A circle of kettle opening buckling edge 12 is arranged on the inner side of the kettle opening of the kettle body 1, the kettle opening buckling edge 12 horizontally extends from the side wall of the kettle body 1 towards the inside of the kettle and then is bent downwards to form a vertical buckling edge, and the lower side of the vertical buckling edge is bent upwards towards the outside of the kettle body 1 and is folded on the outer side face of the vertical buckling edge; the fastening structure 6 is a sliding block, the outer end of the sliding block is provided with a sliding block body 62 with an elliptic structure, and the side surface of the outer end of the sliding block body 62 is flattened to form a tongue surface 63; the chute 71 is an elliptic chute 71 matched with the slider body 62, and the slider body 62 extends outwards or contracts inwards along the chute 71 when the knob body 4 rotates, and after the sliding outwards extends, the tongue surface 63 is clamped on the vertical buckling edge of the kettle opening buckling edge 12. The tongue surface 63 is clamped on the vertical buckling edge of the kettle opening buckling edge 12, so that the kettle cover and the kettle body 1 can be clamped tightly, and the falling off of the kettle cover is avoided.
A third ring groove is formed in the periphery of the inner end of the sliding block body 62, a fifth sealing ring 64 is sleeved in the third ring groove, and the outer side of the fifth sealing ring 64 abuts against the inner wall of the sliding groove 71. The fifth sealing ring 64 is arranged, so that no redundant gap is generated between the sliding block body 62 and the sliding groove 71, good sealing performance is achieved, and pressure maintaining is achieved.
The cover plate 82 is arranged at the top of the cover seat 8, the cover plate 82 is provided with a hole site penetrating through the top of the upper valve cap, the cover plate 82 is also provided with an operation sign, the operation sign comprises a cover opening sign, a water pouring sign, a stop sign, an exhaust sign and a pressurizing sign which are distributed in sequence, the cover opening sign is aligned with the hole site penetrating through the top of the upper valve cap, and the pressurizing sign is close to one side of the first water pouring pressure position 53; the knob body 4 is provided with an indication mark 42, and when the knob body rotates and needs to be provided with a certain working state, the indication mark 42 faces to an operation mark corresponding to the working state.
The knob body 4 is of a cylindrical structure with a cavity and an upward opening, the opening is recessed towards the outside of the knob body 4 to form a circle of level, and a decoration panel 43 for sealing the cavity of the knob body 4 is arranged in the level; the outside of the knob body 4 extends upwards obliquely from the middle section of the knob body, and the cross section structure of the knob body 4 along the longitudinal section is an inverted trapezoid structure. The longitudinal section structure of the knob body 4 is of an inverted trapezoid structure, so that the kettle cover can be conveniently lifted and prevented from falling off.
Installation of the present embodiment:
1) Inserting the slider (fastening structure 6) into the transverse hole (runner 71) of the lower cover seat 7;
2) Fixing the working valve 3 into the working valve hole 73 of the lower cover seat 7;
3) Fixing the safety valve 2 in the safety valve hole 74 of the lower cover seat 7;
4) Placing a kettle opening sealing ring 9 on the lower cover seat 7;
5) The knob driving seat 5 is arranged at the center of the lower cover seat 7, and the cylinder 61 on the sliding block (fastening structure 6) is clamped on the special-shaped groove;
6) Fixing the upper cover seat 8 and the lower cover seat 7 together;
7) The knob body 4 is fixed on the knob transmission seat 5.
The working process and working principle of the embodiment are as follows:
The kettle cover is covered on the kettle body 1, so that the cover and the kettle are overlapped together.
1) The knob body 4 is rotated to the work indication position (operation mark) to realize corresponding use operation.
2) When the kettle is rotated to a pressurizing position, the sliding block is outwards extended and clamped on the kettle opening buckling edge 12 under the drive of the special-shaped eccentric groove 51 on the knob transmission seat 5, so that the kettle cover and the kettle body 1 cannot be separated, and when the pressure in the kettle reaches 4kpa, the safety valve 2 and the working valve 3 automatically rise, so that a sealing space is formed in the kettle.
3) When the pressure of the kettle reaches 5kpa, after the safety valve 2 rises, the upper valve body 21 and the lower valve body 22 of the safety valve 2 are clamped in the limiting groove of the safety valve 2 in the knob transmission seat 5, so that the knob body 4 cannot directly rotate to the uncapping position on the work instruction.
4) When the pressure in the kettle reaches the set working pressure (the pressure value range is 40-60 Kpa), the air pressure jacks up the first spring 37 in the air valve of the working valve 3, and the redundant air is automatically discharged from the working valve 3; when the air pressure in the kettle exceeds the working valve 3 and reaches the pressure value designed by the safety valve 2 (the pressure value range is 70-100 Kpa), the air pressure in the kettle can jack up the second spring 23 in the safety valve 2, and the redundant air pressure is discharged from the safety valve 2 and gives out a loud alarm sound to warn that the working pressure of the kettle is overlarge and the heat source needs to be turned off; when the air pressure in the kettle is larger than the set pressure relief value (the pressure value range is 100-150 Kpa), the air pressure in the kettle can push the kettle opening sealing ring 9 open, and the redundant air can be discharged from the kettle edge.
5) When the knob body 4 rotates to the exhaust position, the exhaust top position 52 on the side of the knob transmission seat 5 will prop against the exhaust pressure position 354 on the exhaust knob (eccentric sleeve 35) of the working valve 3, and under the eccentric action of the central hole 351 and the protruding block 352, the valve core 34 is lifted upwards, so as to realize the exhaust function.
6) When the pressure in the kettle is lower than 4kpa, the safety valve 2 automatically descends to separate from the limit groove of the safety valve 2.
7) When the knob body 4 is rotated to the "stop" position, the working valve 3 is automatically lowered.
8) When the knob body 4 rotates to the pouring position, the first pouring water pressure position 53 on the side of the knob transmission seat 5 is automatically pressed on the second pouring water pressure position 353 of the exhaust button (eccentric sleeve 35) of the working valve 3, so that the working valve 3 cannot block the water outlet 311 in the flowing direction of water flow when pouring water, and the working valve 3 is in a hollow design, so that water flows to the pouring port 83 and flows out of the kettle mouth through the hollow part of the air valve, pouring water can be realized without opening the kettle cover, and the water temperature in the kettle is ensured not to be cooled too quickly.
In this embodiment, the electric heating plate is used for heating, and the structure of heating by the electric heating plate is common existing equipment, so that specific structural analysis is not required to be unfolded. The pressure of the kettle is controlled by the temperature, so that the pressure in the kettle is reduced when the altitude is low, and conversely, the pressure is increased.
The foregoing detailed description is directed to embodiments of the utility model which are not intended to limit the scope of the utility model, but rather to cover all modifications and variations within the scope of the utility model.