Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a rocker valve without a movable iron core.
To achieve the above and other related objects, the present invention provides a rocker valve without a movable iron core, comprising:
the iron core is provided with a first mounting groove on the lower end surface of the iron core, and a storage groove is formed in the bottom of the first mounting groove; the annular iron core is a static iron core and keeps a fixed state.
The compression spring is arranged in the storage groove;
The coil is wound on the iron core;
The outer frame is covered outside the coil;
The valve body is positioned at the lower end of the iron core, a second mounting groove is formed in the upper end face of the valve body, a mounting cavity is formed by the second mounting groove and the first mounting groove, and a left interface, a middle interface and a right interface are formed in the bottom of the second mounting groove;
The rocker arm is arranged in the mounting cavity in a swinging way through a pin body, the compression spring is arranged at the upper end of the rocker arm in a propping way, and the rocker arm is made of magnetic metal;
The upper end face of the isolation diaphragm is connected with the lower end face of the rocker arm, the side face of the isolation diaphragm is connected with the side wall of the second mounting groove, and the lower end face of the isolation diaphragm is in pressing arrangement with the left interface or the right interface. For isolating the flow path portion from the electromagnet portion.
When the coil is not electrified, the left part of the rocker arm is acted by the spring force of the compression spring, so that the left part of the rocker arm swings downwards around the pin body and drives the isolation diaphragm to press the left interface, and when the coil is electrified, the left part of the rocker arm is acted by the attraction force of the electromagnet, so that the left part of the rocker arm swings upwards around the pin body, and the right part of the rocker arm swings downwards around the pin body and drives the isolation diaphragm to press the right interface.
In the scheme, when the coil is not electrified, the left part of the rocker arm is subjected to spring force exerted by the compression spring, the rocker arm integrally rotates around the pin body for a certain angle in the anticlockwise direction until the left part of the rocker arm swings with the isolation diaphragm to press the left interface, the right interface is in an open state at the moment, when the coil is electrified, the attraction force of the electromagnet on the rocker arm is greater than the spring force of the compression spring on the rocker arm, the left part of the rocker arm is sucked upwards, the rocker arm integrally rotates around the pin body for a certain angle in the clockwise direction until the right part of the rocker arm swings with the isolation diaphragm to press the right interface, and the left interface is in an open state at the moment.
Further, the lower end face of the rocker arm is a plane, the upper end of the rocker arm is of a step structure, the left side part of the rocker arm is higher than the right side part of the rocker arm, and the first mounting groove is provided with a step structure corresponding to the shape of the rocker arm. In this scheme, the lower terminal surface of rocking arm sets up to the plane and is convenient for link to each other with isolation diaphragm, and the upper end of rocking arm and first mounting groove set up corresponding step structure and can play spacing effect, prevent that the rocking arm from rotating, guarantee that the structure installation is stable.
Further, the inner side ends of the left interface and the right interface are protruded out of the bottom surface of the second mounting groove. In this scheme, left interface and right interface all bulge groove bottom surface for isolation diaphragm can be better support and push down corresponding interface, guarantee that isolation diaphragm can more stable switch between two interfaces.
Furthermore, the inner side ends of the left interface and the right interface are respectively provided with a boss, and the bosses are round tables with the side inclination angles larger than 30 degrees. In this scheme, the setting of round platform has both guaranteed the leakproofness, has protected the isolation diaphragm again to a certain extent, compares the cylindrical boss that does not have inclination, and the pressure at boss border that isolation diaphragm received is littleer when sealed.
Further, the pin body is located on a symmetry center line of the left interface and the right interface. In this scheme, when rocking arm left and right swing, the pressure angle of isolation diaphragm for left interface and right interface equals, guarantees that the effect is the same.
Further, the iron core is composed of a cylindrical upper structure and a lower structure with a closed upper end, the coil is wound on the upper structure of the iron core, and the lower end of the outer frame is connected with the lower structure of the iron core. In this scheme, cylindrical superstructure's design has improved the appeal, and substructure's design has guaranteed structural stability.
Further, the object placing groove is cylindrical and vertically arranged, and the center line of the object placing groove is overlapped with the center line of the upper structure of the iron core. In this scheme for compression spring is vertical downward to the effort that the rocking arm applyed, guarantees the effect of acting.
Furthermore, the isolation diaphragm is made of high-molecular elastic materials. In this scheme, when rocking arm left and right swing, isolation diaphragm is non-planar seal to left interface and right interface, has certain inclination, and elastic material has the deflection, can "eat" inclination, guarantees sealed effect.
Further, washers are arranged at the outer side ends of the left interface, the middle interface and the right interface, and are embedded into the valve body. In this solution, the provision of the gasket ensures a sealing action when the valve body is connected to other flow paths.
Due to the application of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
The rocker valve without the movable iron core has the advantages that the swing motion is not required to be carried out by adopting the movable iron core and two springs, the structure is simple, parts are fewer, the same effect can be achieved by adopting fewer parts compared with the traditional structure, the relative cost is low, the cost can be greatly reduced even in batch production, the structural stability of the rocker valve without the movable iron core is good, the reliability is improved, the rocker acts like a seesaw in the valve, the left interface and the right interface are alternately sealed, the opening and closing action of the electromagnetic valve almost does not change the internal volume, and the pump action volume is small.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be noted that, in the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present application, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Embodiment one:
referring to fig. 1 and 2, the present embodiment provides a rocker valve without a movable core, including:
The iron core 4, the lower terminal surface of iron core 4 has seted up first mounting groove, and the tank bottom of first mounting groove has seted up the thing groove of putting, and annular iron core 4 is quiet iron core 4, keeps fixed state.
The compression spring 3 is arranged in the storage groove, and the compression spring 3 releases the rocker arm 5 in the power-off state and has a pressure-resistant effect.
A coil 2, the coil 2 being wound around the iron core 4;
the outer frame 1 is covered outside the coil 2, and the outer frame 1 and the iron core 4 and other parts form an electromagnet magnetic field loop.
The valve body 7, the valve body 7 locates at the lower end of the iron core 4, the upper end surface of the valve body 7 has offered the second mounting groove, the second mounting groove forms a mounting cavity 10 with the first mounting groove, the tank bottom of the second mounting groove has offered the left interface 11, middle interface 12 and right interface 13;
The rocker arm 5 is arranged in the installation cavity 10 in a swinging way through a pin body 6, the compression spring 3 is arranged at the upper end of the rocker arm 5 in a pressing way, the rocker arm 5 is made of magnetic metal, and the pin body 6 is a fulcrum of the rocker arm 5 to form the swinging center of the rocker arm 5.
The isolation diaphragm 9, the up end of isolation diaphragm 9 is connected at the lower terminal surface of rocking arm 5, and the side of isolation diaphragm 9 links to each other with the lateral wall of second mounting groove, and the lower terminal surface of isolation diaphragm 9 supports the pressure setting with left interface 11 or right interface 13. The isolation diaphragm 9 is bonded to the lower end of the rocker arm 5 to form a diaphragm assembly for isolating the flow path portion from the electromagnet portion.
When the coil 2 is not electrified, the left part of the rocker arm 5 is acted by the spring force of the compression spring 3, so that the left part of the rocker arm 5 swings downwards around the pin body 6 and drives the isolation diaphragm 9 to press the left interface 11, and when the coil 2 is electrified, the left part of the rocker arm 5 is acted by the attraction force of the electromagnet, so that the left part of the rocker arm 5 swings upwards around the pin body 6, and the right part of the rocker arm 5 swings downwards around the pin body 6 and drives the isolation diaphragm 9 to press the right interface 13.
When the coil 2 is not electrified, the left part of the rocker arm 5 is subjected to the spring force exerted by the compression spring 3, the rocker arm 5 integrally rotates around the pin body 6 by a certain angle in the anticlockwise direction until the left part of the swing drives the isolation diaphragm 9 to press the left interface 11, the right interface 13 is in an open state, when the coil 2 is electrified, the attraction force of the electromagnet on the rocker arm 5 is larger than the spring force of the compression spring 3 on the rocker arm 5, the left part of the rocker arm 5 is sucked upwards, and the rocker arm 5 integrally rotates around the pin body 6 by a certain angle in the clockwise direction until the right part of the swing drives the isolation diaphragm 9 to press the right interface 13, and the left interface 11 is in an open state.
The electromagnet consists of a coil 2 and an iron core 4 and works by utilizing the current magnetic effect. When the coil 2 is electrified, a magnetic field is generated by current passing through the coil 2, the magnetic field can be remarkably enhanced by the existence of the iron core 4, the iron core 4 is made of easily magnetized materials (such as soft iron or silicon steel), the iron core 4 is magnetized by the magnetic field generated by the coil 2, and the magnetic fields of the coil 2 and the iron core 4 are mutually overlapped in the same direction as the magnetic field of the coil 2, so that the magnetism of the electromagnet is greatly enhanced.
When the coil 2 is energized, the rocker arm 5 and the iron core 4 are magnetized so as to be attracted against the repulsive force of the compression spring 3. At this time, the valve seat portion on the left side of the rocker arm 5 is opened, and the valve seat portion on the right side is closed. When the power supply is turned off, the left lowering valve seat portion of the rocker arm 5 is closed by the reaction force of the compression spring 3, and the right poppet valve seat portion is opened.
Embodiment two:
Referring to fig. 1 and 3, this embodiment is a further improvement based on the first embodiment, in which the lower end surface of the rocker arm 5 is a plane, the upper end of the rocker arm 5 is a step structure 14, the left side portion is higher than the right side portion, and the first mounting groove is provided with a step structure 14 corresponding to the shape of the rocker arm 5. In this embodiment, the lower terminal surface of rocking arm 5 sets up to the plane and is convenient for link to each other with isolation diaphragm 9, and the upper end of rocking arm 5 and first mounting groove set up corresponding step structure 14 and can play spacing effect, prevent rocking arm 5 rotation, guarantee that the structure installation is stable.
Embodiment III:
Referring to fig. 2 and fig. 4, this embodiment is a further improvement based on the second embodiment, in which the inner ends of the left interface 11 and the right interface 13 are both protruded from the bottom surface of the second mounting groove. In this embodiment, the left interface 11 and the right interface 13 both protrude from the bottom surface of the groove, so that the isolation diaphragm 9 can better press against the corresponding interfaces, and the isolation diaphragm 9 can be switched between the two interfaces more stably. The inner side ends of the left interface 11 and the right interface 13 are respectively provided with a boss 15, and the bosses 15 are round tables with the side inclination angles larger than 30 degrees. In this embodiment, the setting of round platform has both guaranteed the leakproofness, has protected isolation diaphragm 9 again to a certain extent, and is less than the cylindrical boss 15 that does not have inclination, and the pressure at the boss 15 border that isolation diaphragm 9 received during the sealing.
Fourth embodiment this embodiment is a further improvement over the third embodiment in that the pin 6 is located on the centre line of symmetry of the left 11 and right 13 interfaces. In the present embodiment, when the rocker arm 5 swings left and right, the pressure angles of the isolation diaphragm 9 with respect to the left port 11 and the right port 13 are equal, and the same operation effect is ensured.
Fifth embodiment:
Referring to fig. 1 and 3, this embodiment is a further improvement based on the fourth embodiment, and the specific improvement is that the iron core 4 is composed of a cylindrical upper structure and a ring-shaped lower structure with a closed upper end, the coil 2 is wound on the upper structure of the iron core 4, and the lower end of the outer frame 1 is connected with the lower structure of the iron core 4. In this embodiment, the design of the cylindrical upper structure improves the attractive force, and the design of the lower structure ensures the stability of the structure. The object placing groove is cylindrical and vertically arranged, and the center line of the object placing groove is overlapped with the center line of the upper structure of the iron core 4. In the present embodiment, the acting force applied by the compression spring 3 to the rocker arm 5 is made vertically downward, ensuring the effect.
Example six:
The embodiment is a further improvement based on the fifth embodiment, and the specific improvement is that the isolation diaphragm 9 is made of a polymer elastic material. In this embodiment, when the rocker arm 5 swings left and right, the isolation diaphragm 9 seals the left interface 11 and the right interface 13 in a non-planar manner, and has a certain inclination angle, while the elastic material has a deformation amount, so that the inclination angle can be "eaten" to ensure the sealing effect.
Embodiment seven:
referring to fig. 2 and 4, this embodiment is a further improvement based on the sixth embodiment, in which the outer ends of the left port 11, the middle port 12 and the right port 13 are provided with washers 8, and the washers 8 are embedded in the valve body 7. In the present embodiment, the gasket 8 is provided to ensure sealing when the valve body 7 is connected to another flow path. In other embodiments, the number of valve seats is only two, that is, the rocker valve is a two-way valve without the intermediate port 12. The number of valve seats includes, but is not limited to, two or three.
The rocker valve without the movable iron core has the advantages that the swing motion is not required to be carried out by adopting the movable iron core and two springs, the structure is simple, parts are fewer, the same effect can be achieved by adopting fewer parts compared with the traditional structure, the relative cost is low, the cost can be greatly reduced even in batch production, the structural stability of the rocker valve without the movable iron core is good, the reliability is improved, the rocker acts like a seesaw in the valve, the left interface and the right interface are alternately sealed, the opening and closing action of the electromagnetic valve almost does not change the internal volume, and the pump action volume is small.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.