Character car deviceTechnical Field
The invention relates to the technical field of printers, in particular to a carriage device of a printer.
Background
Inkjet printers are a common type of printer on the market. Inkjet printers typically include a housing, a carriage, and the like along which the carriage can reciprocate. The carriage is provided with an ink box assembly, the ink box assembly provides ink source, and the ink is ejected from a printing head nozzle to a recording medium such as paper under the driving of a printing signal to complete the recording of characters or figures.
The existing carriage structure of the ink-jet printer mostly adopts an integrated ink box with a recording head and an ink box, when the ink of a preset capacity of the integrated ink box is exhausted, the circuit and the nozzles of the recording head do not reach the designed service life, if the recording head scrapped along with the integrated ink box is definitely a great resource waste, and causes environmental pollution, and great pressure is brought to the subsequent environmental protection treatment.
In order to solve the above technical problem, chinese patent application No. CN200720150923.0 (grant publication No. CN 201052700Y) discloses an "inkjet printer", which adds an external ink storage mechanism (ink replenishment cartridge) to transport ink in the ink replenishment cartridge to the integrated ink cartridge by a corresponding ink transport device, wherein the ink replenishment cartridge has saddle-shaped shape and is fixedly mounted on an inkjet printer carriage, and the ink transport device is fixedly mounted on the inkjet printer carriage. The main part of the ink storage chamber of the ink replenishing box is positioned at two sides of the ink jet printer carriage along the printing sliding direction, and the ink conveying device is positioned at the lower part of the original gland of the ink jet printer. The user can manually add ink into the ink replenishing box according to the actual condition of the ink box of the ink-jet printer, so that the effect of adjusting the ink storage capacity of the ink box of the ink-jet printer can be achieved under the condition that the ink box of the ink-jet printer is not required to be disassembled, and the repeated disassembly and assembly of the recording head of the ink-jet printer can be avoided to the greatest extent, so that the recording head is damaged.
However, the carriage device in the above patent has a certain disadvantage, the ink replenishing box and the integrated ink box in the ink jet printer are in an up-down combination mode, namely, the integrated ink box is arranged below the carriage device, and the ink replenishing box is arranged above the integrated ink box, wherein the integrated ink box is inserted in the carriage along the horizontal direction, and the ink replenishing box is arranged outside the carriage device.
Disclosure of Invention
The invention aims to solve the technical problem of providing a character car device with an ink box assembly convenient to assemble and disassemble aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows:
a carriage device comprises a carriage base with an upward-opening accommodating groove;
the rear end of the upper cover plate is hinged to the carriage base, can downwards turn over relative to the carriage base and is covered on the opening of the accommodating groove of the carriage base;
the ink box component can be accommodated in the accommodating groove of the carriage base;
The ink box component can be detachably connected to the upper cover plate and can be downwards overturned along with the upper cover plate to be contained in the containing groove of the carriage base.
In order to enable the upper cover plate to automatically turn upwards in a natural state so as to facilitate a user to assemble or disassemble the ink box assembly on or from the upper cover plate, the ink box assembly further comprises:
The first elastic piece acts on the upper cover plate and enables the upper cover plate to always have an upward overturning trend;
the first locking assembly is arranged between the second end of the upper cover plate and the carriage base and used for locking the second end of the upper cover plate on the carriage base.
On the other hand, after the first locking component is unlocked, the upper cover plate can be automatically turned upwards to be opened with the ink box component under the action of the first elastic piece, so that the ink box component is separated from the accommodating groove of the carriage base, and a user can conveniently and rapidly detach or install the ink box component.
The first elastic member may be of various prior arts and may include various elastic elements such as a compression spring, a torsion spring, and a reed, but in order to better match the overturning action of the upper cover plate, the first elastic member is a torsion spring, one end of which abuts against the carriage base, and the other end abuts against the upper cover plate.
In order to conveniently arrange the first locking component, the upper cover plate can be automatically locked and conveniently unlocked in the pressing process, the carriage base comprises a base main body and a front cover plate arranged on the front side of the base main body, the bottom of the front cover plate is hinged to the base main body and can be turned back and forth, the first locking component comprises a limiting rod arranged on the front end of the upper cover plate and an elastic baffle plate arranged on the front cover plate, and the elastic baffle plate extends backwards from the wall surface of the front cover plate and inclines downwards, so that the limiting rod can be limited above.
The detachable connection mode between the ink box component and the upper cover plate can be insertion fit, snap fit or hinge connection, but the installation and the disassembly of the ink box component are more conveniently realized for the structure of the upper cover plate, the upper cover plate comprises at least two vertical plates which extend downwards and are arranged at intervals, a strip-shaped slot for the ink box component to be inserted is formed between the two adjacent vertical plates, strip-shaped sliding grooves consistent with the length direction of the upper cover plate are formed on the opposite wall surfaces of the strip-shaped slot, and limit ribs are respectively arranged on two sides of the ink box component, and the ink box component is correspondingly inserted and connected in the two strip-shaped sliding grooves of the upper cover plate through the two limit ribs.
As an improvement, the bottom of the upper cover plate is provided with a pressing plate component which can act on the top of the ink box component to press the ink box component downwards. When the upper cover of the carriage is closed, the bottom of the ink box assembly is propped against the carriage base, so that the pressing plate assembly presses the ink box assembly downwards, the ink box assembly is more firmly fixed, and shaking in the moving process of the carriage is avoided.
As an improvement, the platen assembly includes:
the front part of the strip-shaped pressing plate is connected to the upper cover plate and can rotate up and down relative to the upper cover plate;
the second elastic piece is arranged between the rear part of the strip-shaped pressing plate and the upper cover plate, and enables the rear part of the strip-shaped pressing plate to always have a downward movement trend.
In order to enable the rear part of the strip-shaped pressing plate to swing within a certain angle range, two limiting columns are arranged on two sides of the rear part of the strip-shaped pressing plate, and two limiting blocking walls capable of correspondingly limiting the two limiting columns below are arranged on the upper cover plate. The rear part of the strip-shaped pressing plate is limited in a certain angle range, so that the second elastic piece is conveniently arranged between the strip-shaped pressing plate and the upper cover plate, and the second elastic piece is clamped, so that falling is avoided.
In order to arrange a plurality of ink box components to realize color printing and black printing, three vertical plates are arranged, two strip-shaped slots which are arranged in parallel are correspondingly formed between the three vertical plates, two ink box components are respectively a color ink box component and a black ink box component, and the color ink box component and the black ink box component are respectively inserted into the two strip-shaped slots.
The ink cartridge assembly may be a conventional integral ink cartridge structure (with a nozzle) in the prior art, and in order to avoid frequent replacement of ink in the ink cartridge, the ink cartridge assembly includes a main ink cartridge and an ink bag for supplying ink into the main ink cartridge, the ink bag being detachably connected to the main ink cartridge to form an integral piece, and the main ink cartridge being located at a rear portion of the strip-shaped slot and the ink bag being located at a front portion of the strip-shaped slot when the integral piece is inserted into the strip-shaped slot. The split ink box structure design that the ink bag is detachably connected with the main ink box can directly detach the ink bag when ink in the ink bag is exhausted, and replace a new ink bag without frequently detaching the ink box, so that the replacement times of the main ink box are reduced, the ink of the ink box is increased, and the maximum utilization of the service life of the ink box is realized.
In order to prevent the ink box from being taken out when a user takes out the ink bag and prevent the main ink box from being carried out to be misoperation, so that the main ink box is damaged, the top wall of the main ink box is provided with a limiting blocking part, and the rear end of the strip-shaped pressing plate can prop against the limiting blocking part to backwards limit the main ink box. The strip-shaped pressing plate can push the top of the main ink box backwards while pressing the top of the main ink box, so that the ink bag can be conveniently separated from the main ink box and then taken out of the strip-shaped slot.
As an improvement, the limit stop part is a stop block convexly arranged on the top wall of the main ink box or a clamping groove structure recessed downwards. The dog on the roof of main ink horn can be designed to the form of triangle buckle, and the back lateral wall of dog has the transition inclined plane that the slope set up from bottom to top promptly, and the front lateral wall of dog has vertical setting face of keeping out to main ink horn is in can inserting in the bar slot smoothly.
In order to enable ink to be conveyed from the ink bag to the main ink box when the main ink box and the ink bag are inserted and matched together, the main ink box comprises an ink box main body and an ink supply connector arranged at the upper part of the ink box main body, a cover body which is covered outside the ink supply connector is further arranged at the upper part of the ink box main body, a socket is arranged at the side part of the cover body, the end part of the ink supply connector faces to the socket, the ink bag comprises a first box body with an ink storage cavity, an inserting part protruding outwards is arranged at one side of the first box body, an ink supply flow channel communicated with the ink storage cavity is arranged on the inserting part, and the inserting part can be inserted from the socket of the cover body to be embedded in the cover body and enable the ink supply connector of the main ink box to be communicated with the ink supply flow channel of the ink bag.
In order to facilitate the packaging and operation of the ink bag, avoid leakage and realize the convenience of plug and play of the ink bag, a valve cavity is formed at the port of the ink supply flow channel of the plug-in part, a control valve structure capable of blocking the ink supply flow channel in a natural state is arranged in the valve cavity, and the ink supply connector of the main ink box can drive the control valve structure to be opened when being inserted into the port of the ink supply flow channel.
As an improvement, the control valve structure includes:
the sealing ring is arranged at the port of the ink supply flow channel of the inserting part and can be used for the insertion of the ink supply connector to be in sealing contact with the outer wall of the ink supply connector;
The valve core is movably arranged in the valve cavity back and forth and can move backwards to abut against the sealing ring to disconnect the ink supply flow channel;
The third pressure spring is arranged in the valve cavity, acts on the valve core and enables the valve core to always have a backward movement trend.
When the ink bag is not in plug-in connection with the main ink box (in a natural state), the valve core of the control valve can automatically prop against the sealing ring under the action of the third pressure spring to seal the ink supply flow channel of the ink bag so as to facilitate the packaging, storage and transportation of the ink bag, and when the ink bag is plugged in the main ink box, the ink supply connector of the column ink box can be inserted into the port of the ink supply flow channel to push up the valve core, so that the ink in the ink supply flow channel flows into the main ink box through the ink supply connector, and the lasting ink supply of the main ink box is realized.
Because the ink supply connector is propped against the valve core, all or part of the port of the ink supply connector can be blocked by the valve core, and in order not to influence the continuous ink supply of the valve cavity into the inner cavity of the ink supply connector, the side wall of the ink supply connector is provided with a liquid inlet notch for the ink in the valve cavity to enter the ink supply connector.
Compared with the prior art, the carriage device has the advantages that the ink box assembly is assembled on the upper cover plate of the carriage, the upper cover plate can be turned upwards to be opened and turned downwards to be covered on the carriage base, when the upper cover plate carries the ink box assembly to be turned upwards to be opened automatically, the ink box assembly can be separated from the accommodating groove of the carriage base, a user can conveniently and rapidly detach or replace the ink box assembly, and when the ink box assembly is assembled on the upper cover plate, the ink box assembly can be accommodated in the accommodating groove of the carriage base by directly turning downwards to be covered on the carriage base, so that the quick fixing of the ink box assembly is realized, and the carriage device is quite convenient and rapid.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view at A-A in FIG. 2;
FIG. 5 is a schematic perspective view of a carriage base according to an embodiment of the present invention;
FIG. 6 is a schematic view of the front side angle of the upper cover plate according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of an ink cartridge assembly assembled with an upper cover plate according to an embodiment of the present invention;
FIG. 8 is a schematic perspective view of the inverted structure of FIG. 7;
FIG. 9 is a schematic perspective view of an upper cover plate (including a platen assembly) according to an embodiment of the present invention;
FIG. 10 is a schematic view of another perspective view of an upper cover plate (including a platen assembly) according to an embodiment of the present invention;
FIG. 11 is an exploded view of FIG. 9;
FIG. 12 is an exploded view of the other angle of FIG. 9;
FIG. 13 is a cross-sectional view taken at A-A of FIG. 6;
FIG. 14 is a cross-sectional view at B-B in FIG. 6;
FIG. 15 is a schematic perspective view of a strip platen according to an embodiment of the present invention;
FIG. 16 is a side view of a bar clamp of an embodiment of the present invention;
FIG. 17 is a schematic perspective view of an upper cover plate in an open state according to an embodiment of the present invention;
FIG. 18 is a schematic view of the ink cartridge of one of the cartridge assemblies of FIG. 17 in a removed state;
FIG. 19 is a schematic view showing a state in which one of the ink cartridge assemblies of FIG. 17 is removed;
FIG. 20 is a side view of an embodiment of the present invention (with both the upper and front cover panels in an open position);
FIG. 21 is a schematic perspective view of an ink cartridge assembly according to an embodiment of the present invention;
FIG. 22 is an exploded view of an ink cartridge assembly according to an embodiment of the present invention;
Fig. 23 is an exploded view (another angle) of the ink cartridge assembly of the embodiment of the present invention:
FIG. 24 is a cross-sectional view of an ink cartridge assembly (with the main ink cartridge and ink bag in a mated state) according to an embodiment of the present invention;
FIG. 25 is a cross-sectional view of an ink cartridge assembly (with the main ink cartridge and ink bag in a separated state) according to an embodiment of the present invention;
FIG. 26 is an exploded view of a main ink cartridge according to an embodiment of the present invention;
FIG. 27 is an exploded view of an ink bag according to an embodiment of the present invention;
Fig. 28 is a schematic perspective view of an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1-28, the carriage assembly includes a carriage base 10, an upper cover plate 20, a platen assembly, and an ink cartridge assembly 30. The carriage base 10 in this embodiment has a square structure, and has a receiving groove 100 for receiving the ink cartridge assembly 30, and an opening structure is formed at an upper portion of the carriage base 10, wherein a rear end of the upper cover 20 is hinged to a rear side wall of the carriage base 10, and the upper cover 20 can be turned down to be buckled on an upper opening of the carriage base 10.
Referring to fig. 7-10, the two lateral sides of the rear end of the upper cover plate 20 are respectively provided with a first rotating shaft 25, two first rotating shaft holes 101 are correspondingly formed in the rear side wall of the carriage base 10, and the upper cover plate 20 is arranged in the two first rotating shaft holes 101 of the carriage base 10 in a penetrating manner through the two first rotating shafts 25, so that upward or downward overturning is realized relative to the carriage base 10. The two first rotating shafts 25 of the upper cover plate 20 are also sleeved with torsion springs 11, wherein one end of each torsion spring 11 abuts against the rear side wall of the corresponding carriage base 10, and the other end of each torsion spring abuts against the upper cover plate 20, so that the upper cover plate 20 always has a tendency of overturning upwards under the action of elasticity of the torsion springs 11.
Referring to fig. 3, when the upper cover 20 is turned down to be fastened to the carriage base 10, the front end of the upper cover 20 is locked to the carriage base 10 by the first locking assembly. Specifically, the carriage base 10 includes a base body 14 and a front cover 13 disposed on a front side of the base body 14, the base body 14 includes a base 16 having openings in front and rear, and a rear cover 17 disposed at a rear opening position of the base 16, and the rear cover 17 is connected to the base by screws to form an integral piece. The bottom of the front cover plate 13 is hinged at the front end position of the carriage base 10, the front cover plate 13 can be turned forwards and opened relative to the base main body 14, so that the front part of the base main body 14 forms an open structure, and the front cover plate 13 can be turned backwards and buckled at the open position of the side part. The two sides of the front cover plate 13 are provided with a backward extending rest rod 132, and when the front cover plate 13 is turned backwards, the rest rod 132 can rest on the base main body 14 to play a limiting role. The front cover plate 13 is also provided with a V-shaped elastic sheet 15, one side edge of the V-shaped elastic sheet 15 is fixed on the inner wall of the front cover plate 13, and the other side edge can be propped against the front part of the ink box assembly 30, so that the ink box assembly is tightly pressed in the front-back direction, and shaking is avoided.
With continued reference to fig. 3, the first locking assembly in this embodiment is an elastic buckle structure, and specifically includes a stop lever 21 disposed at the front end of the upper cover 20 and an elastic blocking piece 131 disposed on the front cover 13, where the stop lever 21 extends forward from the front end of the upper cover 20 and is bent obliquely upward to form an arc buckle with an upward bayonet, and the elastic blocking piece 131 extends backward from the wall of the front cover 13 and is bent obliquely downward to form an arc buckle with a downward bayonet. When the upper cover 20 is pressed down to the set position, the limiting rod 21 of the upper cover 20 can be automatically clamped under the elastic blocking piece 131, that is, the elastic blocking piece 131 of the front cover 13 can limit the limiting rod 21 above.
Referring to fig. 17-20, the ink cartridge assembly 30 in this embodiment is disposed on the upper cover 20, when the upper cover 20 is turned upwards and opened, the ink cartridge assembly 30 disposed thereon can be moved upwards along with the upper cover 20 to be separated from the accommodating groove 100 of the carriage base 10, so as to facilitate the user to detach or replace the ink cartridge assembly 30 quickly, when the upper cover 20 is turned downwards and covered on the carriage base 10, the ink cartridge assembly 30 can be accommodated in the accommodating groove 100 of the carriage base 10 along with the downward movement of the upper cover 20, thereby realizing quick fixing of the ink cartridge assembly 30.
Referring to fig. 6 and 8, the upper cover 20 in this embodiment includes at least two upright plates 22 extending downward and spaced apart, and a strip-shaped slot 200 into which the ink cartridge assembly 30 is inserted is formed between two adjacent upright plates 22. Specifically, three vertical plates 22 in the present embodiment may be formed, and correspondingly, two strip-shaped slots 200 may be formed in parallel for inserting two ink cartridge assemblies 30 therein. One of the two ink cartridge assemblies 30 in the present embodiment is a black ink cartridge assembly 30a, and the other is a color ink cartridge assembly 30b. The spacing between adjacent two of the risers 22 is adapted to the width of the corresponding ink cartridge assembly 30 for smooth insertion.
Referring to fig. 6 and 21, in order to facilitate insertion of the ink cartridge assembly 30 into the bar-shaped slot 200 of the upper cover plate 20, bar-shaped sliding grooves 220 are provided on opposite wall surfaces of the two adjacent vertical plates 22, and an extending direction of the bar-shaped sliding grooves 220 is consistent with a length direction of the upper cover plate 20. Correspondingly, two limit ribs 31 are symmetrically arranged on the left and right side walls of the ink box assembly 30, and the ink box assembly 30 is correspondingly inserted and connected into two bar-shaped sliding grooves 220 of the upper cover plate 20 through the two limit ribs 31. When the ink cartridge assembly 30 is required to be mounted, the two limit ribs 31 on the ink cartridge assembly 30 can be inserted and slid backward along the corresponding bar-shaped sliding grooves 220 and placed below the upper cover plate 20, and when the ink cartridge assembly 30 is required to be dismounted from the upper cover plate 20, the ink cartridge assembly 30 can be directly grasped and pulled out (forward). In order to facilitate the smooth insertion of the ink cartridge assembly 30 into the bar-shaped chute 220 at the beginning of insertion, the front end of the bar-shaped chute 220 is configured in a bell mouth shape to perform a guiding function.
Referring to fig. 21 and 22, the ink cartridge assembly 30 of the present embodiment includes a main ink cartridge 50 and an ink bag 60, wherein the main ink cartridge 50 and the ink bag 60 can be inserted together to form a single piece. When the integrated body is inserted into the bar-shaped slot 200, the main ink cartridge 50 is positioned at the rear of the bar-shaped slot 200, and the ink bag 60 is positioned at the front of the bar-shaped slot 200. In this embodiment, the ink cartridge assembly 30 is designed into a detachable structure in which the ink bag 60 and the main ink cartridge 50 are detachably connected, when the ink in the ink bag 60 is exhausted, the ink bag 60 can be directly detached, and a new ink bag 60 can be replaced without frequently detaching the main ink cartridge 50, so that the number of times of replacing the main ink cartridge 50 is reduced, and the maximum utilization of the service life of the main ink cartridge is realized.
Referring to fig. 23 and 25, the main ink cartridge 50 includes an ink cartridge main body 51, a chip head 54, and an ink supply connector 53, wherein the ink cartridge main body 51 is a square cartridge body, and specifically includes a lower cartridge body 511 and a cover assembly connected to an open position of a top of the lower cartridge body 511. The lower box body 511 is used for holding ink, a first ink sponge 55 for absorbing the ink is arranged in the lower box body 511, an ink outlet 510 is formed in the wall of the bottom of the lower box body 511, a chip spray head 54 is connected to the wall surface of the bottom of the lower box body 511 and correspondingly covers the ink outlet 510, an annular blocking edge 513 is convexly arranged on the inner wall surface of the bottom of the lower box body 511, the annular blocking edge 513 is arranged around the ink outlet 510 in a surrounding mode, a filter screen 56 is further arranged in the lower box body 511, the filter screen 56 is arranged on the annular blocking edge 513 to cover the ink outlet 510 and used for filtering the ink entering the ink outlet 510, and the chip spray head 54 is prevented from being blocked by impurities in the ink. The capping assembly includes a first cap 571 and a second cap 572, the first cap 571 is connected to the open position of the lower case 511, and the ink supply connector 53 is provided on the first cap 571 to form an integral piece. The first cover 571 is a U-shaped groove with a closed end, the second cover 572 is a cover piece covered on the U-shaped groove, and the second cover 572 is connected to the first cover 571 through the elastic buckle 58. The second cover 572 is connected to the first cover 571 to form a square cover 57, in which the ink supply connector 53 is located in the cover 57, and a socket 520 for inserting an insertion portion 62 of an ink bag 60 described below is provided at a side of the cover 57, and the ink supply connector 53 is horizontally extended, and an end of the ink supply connector 53 faces the socket 520, as shown in fig. 27.
Referring to fig. 24 and 26, the ink bag 60 includes a first case 61 having an ink storage chamber and a control valve structure, the first case 61 includes an ink bag body 611 having an opening at the top and an ink bag cover 610 covering the top of the ink bag body 611, and the ink bag cover 610 may be welded to the ink bag body 611 to form an integral piece. One side of the first case 61 has an insertion portion 62 protruding outward, the insertion portion 62 having an ink supply channel 63 communicating with the ink reservoir, the insertion portion 62 being capable of being inserted into the insertion opening 520 of the cap assembly and communicating the ink supply connector 53 of the main ink cartridge 50 with the ink supply channel 63 of the ink bag 60. In order to further improve the connection firmness between the ink bag 60 and the main ink cartridge 50, two slits are formed in the second cover 572 of the main ink cartridge 50 along the length direction to form a spring piece 573 capable of elastically deforming in the up-down direction, an inverted button 574 is provided on the bottom wall surface of the spring piece 573, and correspondingly, a clamping groove 620 into which the inverted button 574 is clamped is formed on the top of the insertion portion 62 of the ink bag 60.
Referring to fig. 21, the two side walls of the main ink cartridge 50 and the two side walls of the ink bag 60 are respectively provided with the limit ribs 31, and when the ink bag 60 is inserted into the main ink cartridge 50, the limit ribs 31 on the side walls of the main ink cartridge 50 and the limit ribs 31 on the side walls of the ink bag 60 are positioned on the same straight line.
Referring to fig. 26, the ink storage chamber of the ink bag 60 is divided into a first chamber 65 and a second chamber 66 by a vertical partition plate provided in the first case 61, and a through hole 67 for communicating the first chamber 65 and the second chamber 66 is further provided at the bottom of the vertical partition plate. Wherein the top of the first cavity 65 has an ink filling port 68 for filling ink therein, the ink filling port 68 being further provided with a sealing plug 69. A second ink sponge 660 is arranged in the second cavity 66, and the ink supply channel 63 is communicated with the bottom of the second cavity 66.
Referring to fig. 23 and 24, a valve cavity 64 is formed at the port of the ink supply channel 63 of the insertion portion 62, the valve cavity 64 is located on the flow path of the ink supply channel 63, and a control valve structure is provided in the valve cavity 64, and the control valve is a normally closed valve, i.e., the port of the ink supply channel 63 is closed in a natural state.
With continued reference to fig. 23, the control valve includes a seal ring 70, a spool 71, and a third compression spring 72. The seal ring 70 is fitted to the port of the ink supply flow path 63 of the insertion portion 62, and is capable of being inserted into the ink supply joint 53 to be in sealing contact with the outer wall of the ink supply joint 53. The valve core 71 is movably disposed in the valve cavity 64 back and forth, and can move back against the seal ring 70 to disconnect the ink supply flow channel 63, and in this embodiment, the valve core 71 is a PP ball. The third compression spring 72 is provided in the valve chamber 64, specifically, one end of the third compression spring 72 abuts against the valve spool 71, and the other end abuts against the wall of the valve chamber 64, so that the valve spool 71 always has a tendency to move rearward.
When the ink bag 60 is not connected with the main ink box 50 in an inserting way (in a natural state), the valve core 71 of the control valve can automatically prop against the sealing ring 70 under the action of the third pressure spring 72 to seal the ink supply channel 63 of the ink bag 60 so as to facilitate the packaging and storage of the ink bag 60, and when the ink bag 60 is inserted with the main ink box 50, the ink supply connector 53 of the main ink box 50 can be inserted into the port of the ink supply channel 63 to prop up the valve core 71, so that the ink in the ink supply channel 63 flows into the main ink box 50 through the ink supply connector 53, and the lasting ink supply of the main ink box 50 is realized.
Since the ink supply connector 53 abuts against the valve core 71, all or part of the port of the ink supply connector 53 is blocked by the valve core 71, in order not to affect the continuous supply of ink in the valve cavity 64 into the inner cavity of the ink supply connector 53, the side wall of the ink supply connector 53 is provided with a liquid inlet slot 530 for the ink in the valve cavity 64 to enter the ink supply connector 53, and the end wall of the ink supply connector 53 is further provided with a plurality of supporting protruding points 531 at intervals, so that a gap for the ink to flow through is left between the end wall of the ink supply connector and the wall surface of the valve core 71 (PP ball), as shown in fig. 28.
Referring to fig. 9 to 16, the pressing plate assembly is provided at the bottom of the upper cover plate 20, and includes a bar-shaped pressing plate 40 and a second elastic member 41. The arrangement direction of the strip-shaped pressing plate 40 coincides with the length direction of the upper cover plate 20. Two first limiting columns 43 are arranged on two lateral sides of the front part of the strip-shaped pressing plate 40, and a pair of second rotating shaft holes 26 for inserting the first limiting columns 43 are correspondingly arranged on the upper cover plate 20. The bar-shaped pressing plate 40 is rotatably connected to the upper cover plate 20 through the two first limiting posts 43 to rotate up and down relative to the upper cover plate 20. Two second limiting posts 42 are arranged on two lateral sides of the rear part of the strip-shaped pressing plate 40, and two limiting blocking walls 24 capable of correspondingly limiting the two limiting posts below are further arranged on the upper cover plate 20.
The second elastic member 41 is a compression spring, and is specifically disposed between the rear portion of the strip-shaped pressing plate 40 and the upper cover plate 20, where the upper cover plate 20 and the strip-shaped pressing plate 40 are both provided with compression spring positioning columns 44 for sleeving the ends of the compression spring. Under the action of the second elastic member 41, the rear portion of the strip-shaped pressing plate 40 always has a downward movement tendency, and in a natural state, the rear portion of the strip-shaped pressing plate 40 is abutted against the limiting blocking wall of the upper cover plate 20 under the downward pressing action of the second elastic member 41. When the main ink cartridge 50 is inserted into the bar-shaped slot 200 of the upper cover plate 20, the rear portion of the bar-shaped pressing plate 40 is pressed against the top of the main ink cartridge 50, so that a pressing force is applied to the main ink cartridge 50, the ink cartridge assembly 30 is more firmly fixed, and shaking is avoided in the moving process of the carriage.
Referring to fig. 16, the front of the bar-shaped pressing plate 40 is slightly bent upward and a guide arc surface 45 is formed at the bottom so that the front end of the bar-shaped pressing plate 40 does not interfere with the ink cartridge assembly 30 when the ink cartridge assembly 30 is inserted into the bar-shaped slot 200 of the upper cover body, thereby allowing the ink cartridge assembly 30 to be smoothly inserted.
Referring to fig. 4, in order to prevent the main ink cartridge 50 from being taken out and to prevent the main ink cartridge 50 from being carried out from being erroneously operated when the user takes out the ink cartridge 60, the top wall of the second cover 572 of the main ink cartridge 50 is provided with a limit stop 500, specifically, the limit stop 500 is a stop protruding from the top wall of the main ink cartridge 50, and the stop in this embodiment is designed in a form of a triangular buckle, i.e. the rear side wall of the stop is provided with a transition inclined plane obliquely arranged from bottom to top, and the front side wall of the stop is provided with a vertically arranged resisting surface, so that the main ink cartridge 50 can be smoothly inserted into the bar-shaped slot 200 when being loaded. When the main ink cartridge 50 is inserted into the set position in the bar-shaped slot 200 of the upper cover plate 20, the rear end of the bar-shaped pressing plate 40 can abut against the limit stopper 500 to limit the main ink cartridge 50 rearward. The bar-shaped pressing plate 40 can press the main ink box 50 downwards and can also press the main ink box 50 backwards, so that the ink bag 60 can be conveniently separated from the main ink box 50 and then taken out of the bar-shaped slot 200.
The character car device in this embodiment has the advantages that:
(1) The ink box assembly 30 is assembled on the upper cover plate 20 of the carriage, wherein the upper cover plate 20 can be turned upwards to be opened and turned downwards to be covered on the carriage base 10, when the upper cover plate 20 is provided with the ink box assembly 30 to be turned upwards to be opened, the ink box assembly 30 can be separated from the accommodating groove 100 of the carriage base 10, a user can conveniently and rapidly detach or replace the ink box assembly 30, and when the ink box assembly 30 is assembled on the upper cover plate 20, the ink box assembly 30 can be accommodated in the accommodating groove 100 of the carriage base 10 by directly turning downwards to be covered on the carriage base 10, so that the quick fixing of the ink box assembly 30 is realized, and the carriage is quite convenient and quick.
(2) In this embodiment, the main ink cartridge 50 and the ink bag 60 are inserted into the strip-shaped slot 200 of the upper cover plate 20 together, after being inserted into place, the rear portion of the strip-shaped pressing plate 40 is acted by the second elastic member 41, a back pressing force (which is abutted against the limit stop 500 of the main ink cartridge 50) is provided for the ink cartridge assembly 30, so that the main ink cartridge 50 contacts well, when the upper cover plate 20 of the carriage is closed, the upper cover plate 20 also provides a pressing force for the ink cartridge assembly 30, so that the fixing of the ink cartridge assembly 30 is firmer, shaking is avoided, when the ink in the ink bag 60 is used up, a user can directly pull the ink bag 60 outwards, the ink cartridge 60 can be conveniently taken out because the main ink cartridge 50 is abutted backwards by the strip-shaped pressing plate 40, and when the ink cartridge 50 is replaced, the user can directly insert a new ink cartridge 60 into the slot 520 of the main ink cartridge 50, thereby being very convenient and fast, when the main ink cartridge 50 is damaged, a steel ruler or other driving member can be directly inserted into the front end of the upper cover plate 20, when the ink cartridge 50 is required to be replaced, the front end of the ink cartridge 50 is pushed down, the front end of the ink cartridge 40 is moved upwards, and the main ink cartridge 50 can be normally removed from the front end of the main ink cartridge 50, and the ink cartridge 50 can be normally replaced.
(3) The ink cartridge assembly 30 in this embodiment is designed as a split ink cartridge structure composed of the main ink cartridge 50 and the ink cartridge 60, so as to achieve the convenience of plug and play of the ink cartridge 60, when the ink cartridge 60 is not connected with the main ink cartridge 50 in a plug-in manner (in a natural state), the valve core 71 of the control valve of the ink cartridge 60 can automatically abut against the sealing ring 70 under the action of the third pressure spring 72, so as to seal the ink supply channel 63 of the ink cartridge 60, thereby facilitating the packaging and storage and transportation of the ink cartridge 60, and when the ink cartridge 60 is plugged with the main ink cartridge 50, the ink supply connector 53 of the main ink cartridge 50 can be inserted into the port of the ink supply channel 63 to push up the valve core 71, so that the ink in the ink supply channel 63 flows into the main ink cartridge 50 through the ink supply connector 53, thereby achieving the durable ink supply of the main ink cartridge 50.