A carriage device

Abstract

The present invention relates to a carriage device, comprising: a carriage base having a receiving groove with an upward opening; an upper cover plate, the rear end of which is hinged on the carriage base and can be flipped downward relative to the carriage base to cover the opening of the receiving groove of the carriage base; an ink cartridge assembly, which can be accommodated in the receiving groove of the carriage base; the ink cartridge assembly can be detachably connected to the upper cover plate and can be flipped downward along with the upper cover plate to be accommodated in the receiving groove of the carriage base. When the upper cover plate automatically flips upward and opens with the ink cartridge assembly, the ink cartridge assembly can be removed from the receiving groove of the carriage base, making it convenient for the user to quickly disassemble or replace the ink cartridge assembly; and when the ink cartridge assembly is assembled to the upper cover plate, it can be directly flipped downward and buckled onto the carriage base to accommodate the ink cartridge assembly in the receiving groove of the carriage base, thereby achieving rapid fixation of the ink cartridge assembly, which is very convenient and quick.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and in particular to a carriage device of a printer. Background Art

[0002] Inkjet printers are a common type of printer on the market. They typically consist of a housing, a carriage, and a frame. The carriage reciprocates along the frame. The carriage houses an ink cartridge assembly. Inkjet printers print by using the ink cartridge assembly to supply ink. Driven by a print signal, ink is ejected from the print head nozzles onto a recording medium such as paper, recording characters or images.

[0003] Existing inkjet printers often use an integrated ink cartridge in which the recording head and ink cartridge are integrated into one body. When the ink in the integrated ink cartridge is depleted, the circuit and nozzle of the recording head have not reached their designed service life. If the recording head is scrapped along with the integrated ink cartridge, it will undoubtedly be a huge waste of resources, cause environmental pollution, and bring great pressure to subsequent environmental protection treatment.

[0004] To address the aforementioned technical issues, a Chinese utility model patent application with application number CN200720150923.0 (authorization publication number CN201052700Y) discloses an inkjet printer that incorporates an external ink storage mechanism (ink refill cartridge) to transfer ink from the refill cartridge to an integrated ink cartridge via a corresponding ink delivery device. The refill cartridge has a saddle-shaped configuration and is fixedly mounted on the inkjet printer carriage, while the ink delivery device is fixedly mounted on the inkjet printer carriage. The ink storage chamber of the refill cartridge is primarily located on either side of the inkjet printer carriage along the printing sliding direction, while the ink delivery device is located below the original pressure cap of the inkjet printer. Users can manually add ink to the refill cartridge based on the actual condition of the inkjet printer cartridge, thereby adjusting the ink storage capacity of the inkjet printer cartridge without disassembling the cartridge, thereby minimizing damage to the inkjet printer recording head caused by repeated disassembly and assembly.

[0005] However, the carriage device in the above patent still has certain deficiencies. The ink refill box and the integrated ink cartridge in the inkjet printer are in the form of an upper and lower combination, that is, the integrated ink cartridge is at the bottom and the ink refill box is at the top. The integrated ink cartridge is inserted into the carriage in the horizontal direction, and the ink refill box is installed on the outside of the carriage. This structural arrangement makes the overall volume of the carriage device larger and the moving process relatively bulky. If the integrated ink cartridge needs to be repaired or replaced, the ink refill box needs to be removed first, and then the pressure cover of the carriage is opened before the integrated ink cartridge can be replaced. The disassembly and assembly steps are relatively cumbersome. In addition, the ink refill box placed on the outside of the carriage is also prone to damage and leakage by touching foreign objects, posing certain safety hazards. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a carriage device with an ink cartridge assembly that is easy to assemble and disassemble in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is:

[0008] A carriage device comprises: a carriage base having a receiving groove with an upward opening;

[0009] An upper cover plate, the rear end of which is hinged to the carriage base and can be turned downward relative to the carriage base to cover the opening of the accommodating groove of the carriage base;

[0010] The ink cartridge assembly can be accommodated in the receiving groove of the carriage base;

[0011] The ink cartridge assembly is detachably connected to the upper cover plate and can be turned downward together with the upper cover plate to be accommodated in the receiving groove of the carriage base.

[0012] In order to enable the upper cover to automatically flip upward in a natural state so that the user can easily assemble or remove the ink cartridge assembly from the upper cover, the invention also includes:

[0013] a first elastic member acting on the upper cover plate and causing the upper cover plate to always have a tendency to flip upward;

[0014] The first locking assembly is provided between the second end of the upper cover plate and the carriage base, and is used for locking the second end of the upper cover plate on the carriage base.

[0015] The first locking assembly can lock the upper cover on the carriage base, preventing the ink cartridge assembly from shaking during the reciprocating movement of the carriage; on the other hand, after the first locking assembly is unlocked, the upper cover can automatically flip upward and open with the ink cartridge assembly under the action of the first elastic member, so that the ink cartridge assembly can be removed from the receiving groove of the carriage base, making it convenient for users to quickly remove or install the ink cartridge assembly.

[0016] The first elastic member can adopt various existing technologies and can include various elastic elements such as compression springs, torsion springs, and spring leaves. However, in order to better cooperate with the flipping action of the above-mentioned upper cover, the first elastic member is a torsion spring, one end of which is against the carriage base and the other end is against the upper cover.

[0017] In order to facilitate the arrangement of the first locking component, so that the upper cover can be automatically locked during the downward pressing process and the upper cover can be conveniently unlocked, the carriage base includes a base body and a front cover provided on the front side of the base body, the bottom of the front cover is hinged on the base body and can be flipped forward and backward; the first locking component includes a limit rod provided on the front end of the upper cover and an elastic blocking piece provided on the front cover, the elastic blocking piece extends backward from the wall surface of the front cover and tilts downward, and can limit the limit rod at the top.

[0018] The detachable connection between the ink cartridge assembly and the upper cover plate can be a plug-in fit, a snap fit or a hinge connection, but in order to cooperate with the structure of the upper cover plate to more conveniently realize the installation and disassembly of the ink cartridge assembly, the upper cover plate includes at least two vertical plates extending downward and arranged at intervals, and a strip slot for inserting the ink cartridge assembly is formed between the two adjacent vertical plates, and the opposite walls of the strip slot are provided with strip slides consistent with the length direction of the upper cover plate, and limiting ribs are provided on both sides of the ink cartridge assembly, and the ink cartridge assembly is correspondingly inserted and connected in the two strip slides of the upper cover plate through the two limiting ribs.

[0019] As an improvement, the bottom of the upper cover has a pressure plate assembly that acts on the top of the ink cartridge assembly to press the ink cartridge assembly downward. When the carriage upper cover is closed, the bottom of the ink cartridge assembly is supported by the carriage base, so the pressure plate assembly applies a downward pressure to the ink cartridge assembly, making the ink cartridge assembly more secure and preventing shaking during carriage movement.

[0020] As an improvement, the pressing plate assembly comprises:

[0021] A strip-shaped pressing plate, the front portion of which is connected to the upper cover plate and can rotate up and down relative to the upper cover plate;

[0022] The second elastic member is arranged between the rear portion of the strip-shaped pressing plate and the upper cover plate, and enables the rear portion of the strip-shaped pressing plate to always have a tendency to move downward.

[0023] To enable the rear portion of the strip pressure plate to swing within a certain angular range, two limiting posts are provided on either side of the rear portion of the strip pressure plate, and the upper cover is provided with two limiting retaining walls that correspondingly constrain the two limiting posts from below. Limiting the rear portion of the strip pressure plate to a certain angular range also facilitates the installation of a second elastic member between the strip pressure plate and the upper cover, which clamps the second elastic member to prevent it from falling off.

[0024] In order to arrange multiple ink cartridge assemblies to achieve color printing and black printing, there are three vertical plates, and two parallel strip slots are formed between the three vertical plates. There are two ink cartridge assemblies, namely a color ink cartridge assembly and a black ink cartridge assembly. The color ink cartridge assembly and the black ink cartridge assembly are respectively inserted into the above two strip slots.

[0025] The ink cartridge assembly can be a conventional one-piece ink cartridge structure (with a nozzle) in the prior art. To avoid frequent replacement due to depletion of ink in the ink cartridge, the ink cartridge assembly includes a main ink cartridge and an ink sac for supplying ink to the main ink cartridge. The ink sac can be detachably connected to the main ink cartridge to form an integral part. When the integral part is inserted into the bar-shaped slot, the main ink cartridge is located at the rear of the bar-shaped slot, and the ink sac is located at the front of the bar-shaped slot. This split ink cartridge structure design with the ink sac detachably connected to the main ink cartridge allows the ink sac to be directly removed and replaced with a new one when the ink in the ink sac is exhausted, without having to frequently disassemble the ink cartridge. This reduces the number of replacements of the main ink cartridge, increases the ink in the ink cartridge, and maximizes the life of the ink cartridge.

[0026] To prevent the ink cartridge from being removed while the user is removing the ink sac, and to prevent the main ink cartridge from being removed and accidentally damaged, a stopper is provided on the top wall of the main ink cartridge. The rear end of the strip pressure plate abuts against the stopper, restraining the main ink cartridge backward. Because the strip pressure plate simultaneously presses down on the top of the main ink cartridge and abuts backward, the ink sac can be easily removed from the main ink cartridge and then removed from the strip slot.

[0027] As an improvement, the stopper is a block protruding from the top wall of the main ink cartridge or a downwardly recessed slot structure. The block on the top wall of the main ink cartridge can be designed in the form of a triangular snap, that is, the rear side wall of the block has a transition slope arranged from bottom to top, and the front side wall of the block has a vertically arranged abutment surface, so that the main ink cartridge can be smoothly inserted into the strip-shaped slot.

[0028] In order to enable the ink to be transported from the ink sac to the main ink cartridge when the main ink cartridge and the ink bag are plugged together, the main ink cartridge includes an ink cartridge body and an ink supply joint arranged on the upper part of the ink cartridge body; the upper part of the ink cartridge body is also provided with a cover body which covers the outside of the ink supply joint, the side of the cover body has a socket, and the end of the ink supply joint faces the socket; the ink bag includes a first box body having an ink storage cavity, one side of the first box body has an outwardly protruding insertion part, the insertion part has an ink supply channel communicating with the ink storage cavity, the insertion part can be inserted from the socket of the cover body and embedded in the cover body to connect the ink supply joint of the main ink cartridge with the ink supply channel of the ink sac.

[0029] In order to facilitate the packaging and operation of the ink bag, avoid leakage, and realize the plug-and-play convenience of the ink bag, a valve cavity is formed at the port of the ink supply channel of the insertion part, and a control valve structure is provided in the valve cavity, which can block the ink supply channel in a natural state. When the ink supply connector of the main ink cartridge is inserted into the port of the ink supply channel, it can drive the control valve structure to open.

[0030] As an improvement, the control valve structure includes:

[0031] a sealing ring, provided at the port of the ink supply channel of the inserting portion, capable of being inserted into the ink supply connector and in sealing contact with the outer wall of the ink supply connector;

[0032] The valve core is movably arranged in the valve cavity and can move backward to abut against the sealing ring to cut off the ink supply channel;

[0033] The third compression spring is arranged in the valve cavity, acts on the valve core, and makes the valve core always have a tendency to move backward.

[0034] When the ink sac is not plugged and connected with the main ink cartridge (in a natural state), the valve core of the control valve can automatically press against the sealing ring under the action of the third compression spring, thereby blocking the ink supply channel of the ink sac, so as to facilitate the packaging and storage and transportation of the ink sac; and when the ink sac is plugged and connected with the main ink cartridge, the ink supply connector of the column ink cartridge can be inserted into the port of the ink supply channel, pushing open the valve core, so that the ink in the ink supply channel flows into the main ink cartridge through the ink supply connector, thereby realizing long-term ink supply of the main ink cartridge.

[0035] Since all or part of the port of the ink supply connector will be blocked by the valve core when the ink supply connector presses against the valve core, in order not to affect the continuous supply of ink in the valve cavity to the inner cavity of the ink supply connector, a liquid inlet groove is provided on the side wall of the ink supply connector for the ink in the valve cavity to enter the ink supply connector.

[0036] Compared with the prior art, the advantages of the present invention are as follows: the carriage device of the present invention assembles the ink cartridge assembly on the upper cover of the carriage, wherein the upper cover can be flipped upward to open and flipped downward to cover the carriage base. When the upper cover automatically flips upward to open with the ink cartridge assembly, the ink cartridge assembly can be removed from the receiving groove of the carriage base, making it convenient for users to quickly disassemble or replace the ink cartridge assembly; and when the ink cartridge assembly is assembled to the upper cover, it can be directly flipped downward to cover the carriage base so that the ink cartridge assembly can be accommodated in the receiving groove of the carriage base, thereby realizing rapid fixation of the ink cartridge assembly, which is very convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0038] Figure 2A top view of an embodiment of the present invention;

[0039] Figure 3 An exploded view of an embodiment of the present invention;

[0040] Figure 4 for Figure 2 Cross-sectional view at AA in the middle;

[0041] Figure 5 Schematic diagram of the three-dimensional structure of the carriage base according to an embodiment of the present invention;

[0042] Figure 6 A schematic diagram of the front angle of the upper cover plate according to an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the three-dimensional structure of the upper cover plate after the ink cartridge assembly is assembled in an embodiment of the present invention;

[0044] Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure after flipping;

[0045] Figure 9 Schematic diagram of the three-dimensional structure of the upper cover plate (including the pressure plate assembly) according to an embodiment of the present invention;

[0046] Figure 10 This is a schematic diagram of the three-dimensional structure of the upper cover plate (including the pressure plate assembly) from another angle according to an embodiment of the present invention;

[0047] Figure 11 for Figure 9 Exploded view of

[0048] Figure 12 for Figure 9 An exploded view from another angle;

[0049] Figure 13 for Figure 6 Cross-sectional view at AA in the middle;

[0050] Figure 14 for Figure 6 Cross-sectional view at the middle BB;

[0051] Figure 15 Schematic diagram of the three-dimensional structure of the strip pressure plate according to an embodiment of the present invention;

[0052] Figure 16 A side view of a strip pressure plate according to an embodiment of the present invention;

[0053] Figure 17 Schematic diagram of the three-dimensional structure of the upper cover in the open state according to an embodiment of the present invention;

[0054] Figure 18 for Figure 17A schematic structural diagram of a state in which an ink sac of one of the ink cartridge assemblies is removed;

[0055] Figure 19 for Figure 17 A schematic structural diagram of a state where one of the ink cartridge components is removed;

[0056] Figure 20 It is a side view of an embodiment of the present invention (the upper cover and the front cover are both in the open state);

[0057] Figure 21 Schematic diagram of the three-dimensional structure of the ink cartridge assembly according to an embodiment of the present invention;

[0058] Figure 22 An exploded view of an ink cartridge assembly according to an embodiment of the present invention;

[0059] Figure 23 Exploded view of the ink cartridge assembly according to an embodiment of the present invention (from another angle):

[0060] Figure 24 A cross-sectional view of an ink cartridge assembly according to an embodiment of the present invention (with the main ink cartridge and ink sac in mating state);

[0061] Figure 25 A cross-sectional view of an ink cartridge assembly according to an embodiment of the present invention (with the main ink cartridge and ink sac separated);

[0062] Figure 26 An exploded view of a main ink cartridge according to an embodiment of the present invention;

[0063] Figure 27 An exploded view of an ink bag according to an embodiment of the present invention;

[0064] Figure 28 Schematic diagram of the three-dimensional structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0065] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0066] See also Figure 1-Figure 28 The carriage assembly includes a carriage base 10, an upper cover 20, a pressure plate assembly, and an ink cartridge assembly 30. The carriage base 10 in this embodiment is a cubic structure having a receiving slot 100 for accommodating the ink cartridge assembly 30. The upper portion of the carriage base 10 is an open structure, wherein the rear end of the upper cover 20 is hinged to the rear side wall of the carriage base 10 and can be flipped downward to snap onto the upper opening of the carriage base 10.

[0067] See also Figure 7-10A first rotation axis 25 is provided on both sides of the rear end of the upper cover 20. Two first rotation axis holes 101 are correspondingly provided on the rear side wall of the carriage base 10. The upper cover 20 is inserted into the two first rotation axis holes 101 of the carriage base 10 via the two first rotation axis 25, thereby enabling the upper cover 20 to flip upward or downward relative to the carriage base 10. A torsion spring 11 is also sleeved on each of the two first rotation axis 25 of the upper cover 20. One end of the torsion spring 11 abuts against the rear side wall of the carriage base 10, and the other end abuts against the upper cover 20. Thus, under the elastic force of the torsion spring 11, the upper cover 20 always has a tendency to flip upward.

[0068] Combine Figure 3 When the upper cover 20 is flipped downward and snapped onto the carriage base 10, the front end of the upper cover 20 is locked to the carriage base 10 via a first locking assembly. Specifically, the carriage base 10 includes a base body 14 and a front cover 13 disposed on the front side of the base body 14. The base body 14 includes a base 16 with both front and rear openings, and a rear cover 17 disposed at the rear open position of the base 16. The rear cover 17 is connected to the base via screws to form an integral part. The bottom of the front cover 13 is hinged to the front end of the carriage base 10. The front cover 13 can be flipped forward relative to the base body 14 to open the front of the base body 14. The front cover 13 can then be flipped backward to snap into the open position on the side. A rearward-extending retaining rod 132 is provided on each side of the front cover 13. When the front cover 13 is flipped backward, the retaining rod 132 can rest on the base body 14, acting as a position limiter. A V-shaped spring clip 15 is also provided on the front cover 13. One side of the V-shaped spring clip 15 is fixed to the inner wall of the front cover 13, and the other side can be pressed against the front of the ink cartridge assembly 30, thereby pressing the ink cartridge assembly in the front-to-back direction to prevent shaking.

[0069] Continue to see Figure 3 In this embodiment, the first locking assembly is a resilient snap-fit ​​structure, specifically comprising a limiting rod 21 disposed at the front end of the upper cover 20 and a resilient catch 131 disposed on the front cover 13. The limiting rod 21 extends forward from the front end of the upper cover 20 and curves upward, forming an arc-shaped snap-fit ​​with the snap-fit ​​opening facing upward. The resilient catch 131 extends rearward from the wall surface of the front cover 13 and curves downward, forming an arc-shaped snap-fit ​​with the snap-fit ​​opening facing downward. When the upper cover 20 is pressed down to the set position, the limiting rod 21 of the upper cover 20 automatically snaps into position below the resilient catch 131, meaning that the resilient catch 131 of the front cover 13 restrains the limiting rod 21 from above.

[0070] See also Figures 17-20In this embodiment, the ink cartridge assembly 30 is arranged on the upper cover 20. When the upper cover 20 is flipped upward and opened, the ink cartridge assembly 30 arranged thereon can move upward with the upper cover 20 and fall out of the receiving groove 100 of the carriage base 10, making it convenient for users to quickly remove or replace the ink cartridge assembly 30; when the upper cover 20 is flipped downward and buckled onto the carriage base 10, the ink cartridge assembly 30 can move downward with the upper cover 20 and be accommodated in the receiving groove 100 of the carriage base 10, realizing rapid fixation of the ink cartridge assembly 30, which is very convenient and quick.

[0071] See also Figure 6 and Figure 8 In this embodiment, the upper cover 20 includes at least two vertical panels 22 extending downward and spaced apart. A strip-shaped slot 200 is formed between two adjacent vertical panels 22, into which the ink cartridge assemblies 30 are inserted. Specifically, there are three vertical panels 22 in this embodiment, correspondingly forming two parallel strip-shaped slots 200 for inserting two ink cartridge assemblies 30. In this embodiment, one of the two ink cartridge assemblies 30 is a black ink cartridge assembly 30a, and the other is a color ink cartridge assembly 30b. The spacing between two adjacent vertical panels 22 matches the width of the corresponding ink cartridge assembly 30, ensuring smooth insertion.

[0072] See also Figure 6 and Figure 21 To facilitate insertion of the ink cartridge assembly 30 into the strip-shaped slot 200 of the upper cover 20, strip-shaped slots 220 are provided on the opposing walls of the two adjacent vertical panels 22. The strip-shaped slots 220 extend in the same direction as the length of the upper cover 20. Correspondingly, two retaining ribs 31 are symmetrically provided on the left and right side walls of the ink cartridge assembly 30. The ink cartridge assembly 30 is connected to the two strip-shaped slots 220 of the upper cover 20 via these two retaining ribs 31. To install the ink cartridge assembly 30, the two retaining ribs 31 on the ink cartridge assembly 30 can be inserted along the corresponding strip-shaped slots 220 and slid backward to position it beneath the upper cover 20. To remove the ink cartridge assembly 30 from the upper cover 20, the ink cartridge assembly 30 can be directly grasped and pulled outward (forward). In order to facilitate the smooth insertion of the ink cartridge assembly 30 into the strip-shaped slide groove 220 at the beginning of insertion, the front end of the strip-shaped slide groove 220 is configured to be trumpet-shaped to serve as a guide.

[0073] See also Figure 21 and Figure 22The ink cartridge assembly 30 in this embodiment includes a main ink cartridge 50 and an ink sac 60, wherein the main ink cartridge 50 and the ink sac 60 can be plugged together to form a single unit. When the single unit is inserted into the bar slot 200, the main ink cartridge 50 is located at the rear of the bar slot 200, and the ink sac 60 is located at the front of the bar slot 200. In this embodiment, the ink cartridge assembly 30 is designed as a separate structure in which the ink sac 60 and the main ink cartridge 50 are detachably connected. When the ink in the ink sac 60 is exhausted, the ink sac 60 can be directly removed and replaced with a new one without having to frequently remove the main ink cartridge 50. This reduces the number of replacements of the main ink cartridge 50 and maximizes the life of the main ink cartridge.

[0074] See also Figure 23 and Figure 25 The main ink cartridge 50 includes an ink cartridge body 51, a chip nozzle 54 and an ink supply connector 53, wherein the ink cartridge body 51 is a square box body, specifically including a lower box body 511 and a sealing assembly connected to the open position at the top of the lower box body 511. The lower box body 511 is used to hold ink. A first ink sponge 55 for absorbing ink is provided within the lower box body 511. An ink outlet 510 is provided on the bottom wall of the lower box body 511. The chip nozzle 54 is connected to the bottom wall of the lower box body 511 and covers the ink outlet 510. An annular retaining edge 513 is provided on the inner wall of the bottom of the lower box body 511. This retaining edge 513 surrounds the ink outlet 510. A filter 56 is also provided within the lower box body 511. The filter 56 is provided on the annular retaining edge 513 to cover the ink outlet 510 and filter the ink entering the ink outlet 510 to prevent impurities in the ink from clogging the chip nozzle 54. The capping assembly includes a first cover 571 and a second cover 572. The first cover 571 is connected to the open portion of the lower box body 511. The ink supply connector 53 is integrally provided on the first cover 571. The first cover 571 is a U-shaped groove with one end closed, and the second cover 572 is a cover plate that covers the U-shaped groove. The second cover 572 is connected to the first cover 571 via an elastic buckle 58. The second cover 572 and the first cover 571 are connected to form a square cover 57 structure. The ink supply connector 53 is located inside the cover 57. The side of the cover 57 is provided with a socket 520 for inserting the insertion part 62 of the ink bag 60 described below. The ink supply connector 53 is arranged to extend horizontally, with the end of the ink supply connector 53 facing the socket 520. For details, see Figure 27 .

[0075] See also Figure 24 and Figure 26The ink bag 60 includes a first housing 61 having an ink storage chamber and a control valve structure. The first housing 61 comprises an ink bag main body 611 with an open top and an ink bag cover 610 that covers the top of the ink bag main body 611. The ink bag cover 610 can be welded to the ink bag main body 611 to form a single piece. A protruding insertion portion 62 is formed on one side of the first housing 61. This insertion portion 62 has an ink supply channel 63 that communicates with the ink storage chamber. The insertion portion 62 can be inserted into the socket 520 of the cap assembly to connect 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 firmness of the connection between the ink sac 60 and the main ink cartridge 50, two slits are provided on the second cover 572 of the main ink cartridge 50 along the length direction to form a spring piece 573 that can be elastically deformed in the up and down directions. The spring piece 573 has an inverted buckle 574 on the bottom wall. Correspondingly, a slot 620 is provided on the top of the insertion part 62 of the ink sac 60 for the above-mentioned inverted buckle 574 to be inserted into.

[0076] See also Figure 21 The limiting ribs 31 are provided on both side walls of the main ink cartridge 50 and the ink sac 60. When the ink sac 60 is inserted into the main ink cartridge 50, the limiting ribs 31 on the side walls of the main ink cartridge 50 and the limiting ribs 31 on the side walls of the ink sac 60 are located on the same straight line.

[0077] See also Figure 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 provided within the first housing 61. A through hole 67 is provided at the bottom of the vertical partition, connecting the first and second chambers 65 and 66. The top of the first chamber 65 has an ink filling port 68 for adding ink, which is also equipped with a sealing plug 69. A second ink sponge 660 is provided within the second chamber 66, and the ink supply channel 63 is connected to the bottom of the second chamber 66.

[0078] See also Figure 23 and Figure 24 A valve cavity 64 is formed at the port position of the ink supply channel 63 of the inserted part 62. The valve cavity 64 is located on the flow path of the ink supply channel 63. A control valve structure is provided in the valve cavity 64. The control valve is a normally closed valve, that is, in the natural state, the port of the ink supply channel 63 is in a closed state.

[0079] Continue to see Figure 23The control valve includes a sealing ring 70, a valve core 71, and a third compression spring 72. The sealing ring 70 is embedded in the port of the ink supply channel 63 of the insertion part 62, and can be inserted by the ink supply connector 53 to seal and contact the outer wall of the ink supply connector 53. The valve core 71 is movably arranged in the valve cavity 64, and can move backward to press against the sealing ring 70 to disconnect the ink supply channel 63. In this embodiment, the valve core 71 is a PP ball. The third compression spring 72 is arranged in the valve cavity 64. Specifically, one end of the third compression spring 72 presses against the valve core 71, and the other end presses against the wall of the valve cavity 64, so that the valve core 71 always has a tendency to move backward.

[0080] When the ink bag 60 is not plugged and connected with the main ink cartridge 50 (in a natural state), the valve core 71 of the control valve can automatically press against the sealing ring 70 under the action of the third compression spring 72, thereby blocking the ink supply channel 63 of the ink bag 60, so as to facilitate the packaging and storage and transportation of the ink bag 60; and when the ink bag 60 is plugged and connected 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, pushing open 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 realizing a long-term ink supply to the main ink cartridge 50.

[0081] Since the ink supply connector 53 presses against the valve core 71, all or part of the port of the ink supply connector 53 will be blocked by the valve core 71. In order to prevent the continuous supply of ink from the valve cavity 64 to the inner cavity of the ink supply connector 53 from being affected, a liquid inlet notch 530 is provided on the side wall of the ink supply connector 53 for allowing the ink in the valve cavity 64 to enter the ink supply connector 53. A plurality of supporting protrusions 531 are also provided at intervals on the end wall of the ink supply connector 53 to leave a gap between the end wall of the ink connector and the wall of the valve core 71 (PP ball) for the ink to flow through. For details, see [Note: The following sentences are omitted for clarity.] Figure 28 .

[0082] See also Figures 9-16 The pressure plate assembly is arranged at the bottom position of the upper cover plate 20, and includes a strip pressure plate 40 and a second elastic member 41. The arrangement direction of the strip pressure plate 40 is consistent with the length direction of the upper cover plate 20. Two first limiting posts 43 are provided on both sides of the front of the strip pressure plate 40, and a pair of second rotating shaft holes 26 for inserting the first limiting posts 43 are correspondingly provided on the upper cover plate 20. The strip pressure plate 40 is rotatably connected to the upper cover plate 20 through the two first limiting posts 43 so as to rotate up and down relative to the upper cover plate 20. Two second limiting posts 42 are provided on both sides of the rear of the strip pressure plate 40, and the upper cover plate 20 is also provided with two limiting retaining walls 24 that can correspondingly limit the two limiting posts at the bottom.

[0083] The second elastic member 41 is a compression spring, specifically positioned between the rear portion of the strip pressure plate 40 and the upper cover 20. Both the upper cover 20 and the strip pressure plate 40 are equipped with compression spring positioning posts 44 for the ends of the compression springs to fit over. Under the action of the second elastic member 41, the rear portion of the strip pressure plate 40 tends to move downward. In its natural state, under the downward pressure of the second elastic member 41, the rear portion of the strip pressure plate 40 abuts against the retaining wall of the upper cover 20. When the main ink cartridge 50 is inserted into the strip slot 200 of the upper cover 20, the rear portion of the strip pressure plate 40 presses against the top of the main ink cartridge 50, applying a downward pressure to the main ink cartridge 50, further securing the ink cartridge assembly 30 and preventing any shaking during carriage movement.

[0084] See also Figure 16 The front portion of the strip pressure plate 40 is slightly bent upward, and a guide arc surface 45 is formed at the bottom. In this way, when the ink cartridge assembly 30 is inserted into the strip slot 200 of the upper cover body, the front end of the strip pressure plate 40 will not interfere with the ink cartridge assembly 30, allowing the ink cartridge assembly 30 to be inserted smoothly.

[0085] Combine Figure 4 In order to prevent the main ink cartridge 50 from being removed when the user removes the ink bag 60, and to prevent the main ink cartridge 50 from being dragged out and accidentally operated, which may cause damage to the main ink cartridge 50, a limit stop 500 is provided on the top wall of the second cover 572 of the main ink cartridge 50. Specifically, the limit stop 500 is a block protruding from the top wall of the main ink cartridge 50. In this embodiment, the block is designed in the form of a triangular buckle, that is, the rear side wall of the block has a transition slope arranged from bottom to top, and the front side wall of the block has a vertical stop surface, so that the main ink cartridge 50 can be smoothly inserted into the bar slot 200 when installed. When the main ink cartridge 50 is inserted into the bar slot 200 of the upper cover 20 to the set position, the rear end of the bar pressure plate 40 can abut against the limit stop 500 to restrict the main ink cartridge 50 backward. In this way, the strip-shaped pressing plate 40 can not only press the main ink cartridge 50 downward, but also press the main ink cartridge 50 backward, so that the ink bag 60 can be easily separated from the main ink cartridge 50 and then taken out of the strip-shaped slot 200.

[0086] Advantages of the carriage device in this embodiment:

[0087] (1) The ink cartridge assembly 30 is assembled on the upper cover 20 of the carriage, wherein the upper cover 20 can be flipped upward to open and flipped downward to cover the carriage base 10. When the upper cover 20 automatically flips upward to open with the ink cartridge assembly 30, the ink cartridge assembly 30 can be removed from the receiving groove 100 of the carriage base 10, making it convenient for users to quickly disassemble or replace the ink cartridge assembly 30. After the ink cartridge assembly 30 is assembled on the upper cover 20, it can be directly flipped downward to cover the carriage base 10 so that the ink cartridge assembly 30 can be accommodated in the receiving groove 100 of the carriage base 10, thereby realizing rapid fixation of the ink cartridge assembly 30, which is very convenient and quick.

[0088] (2) In this embodiment, the main ink cartridge 50 and the ink bag 60 are plugged into the integrated part, which can be inserted into the strip slot 200 of the upper cover 20. After being plugged into place, the rear part of the strip pressure plate 40 is acted upon by the second elastic member 41, which provides a backward pressure force to the ink cartridge assembly 30 (against the limit stop 500 of the main ink cartridge 50), ensuring that the contacts of the main ink cartridge 50 are in good contact. When the upper cover 20 of the carriage is closed, the upper cover 20 also applies a downward pressure force to the ink cartridge assembly 30, making the ink cartridge assembly 30 more firmly fixed and avoiding shaking. When the ink in the ink bag 60 is used up and needs to be replaced, the user can directly Then pull the ink sac 60 outward. Since the main ink cartridge 50 is pressed backward by the strip pressure plate 40 and cannot be removed, the ink sac 60 can be easily removed. When replacing, the user can directly insert the new ink sac 60 into the socket 520 of the main ink cartridge 50, which is very convenient and quick. When the main ink cartridge 50 is damaged and needs to be replaced, a steel ruler or other driving component can be directly inserted into the front end of the upper cover 20, and the front part of the strip pressure plate 40 can be pressed down. The rear end of the strip pressure plate 40 can be moved upward to disengage from the limit stop 500 of the main ink cartridge 50, and the main ink cartridge 50 can be taken out and a new main ink cartridge 50 can be installed normally to complete the replacement.

[0089] (3) The ink cartridge assembly 30 in this embodiment is designed as a split ink cartridge structure consisting of a main ink cartridge 50 and an ink sac 60, so as to realize the plug-and-play convenience of the ink sac 60. When the ink sac 60 is not plugged in and connected with the main ink cartridge 50 (in a natural state), the valve core 71 of the control valve of the ink sac 60 can automatically press against the sealing ring 70 under the action of the third compression spring 72, thereby blocking the ink supply channel 63 of the ink sac 60, so as to facilitate the packaging and storage of the ink sac 60; and when the ink sac 60 is plugged in and connected 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, pushing open 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 realizing a long-term ink supply for the main ink cartridge 50.

Claims

1. A carriage device comprising: The carriage base (10) has a receiving groove (100) with an upward opening; An upper cover plate (20) is hinged at its rear end to the carriage base (10) and can be turned downward relative to the carriage base (10) to cover the opening of the receiving groove (100) of the carriage base (10); An ink cartridge assembly (30) capable of being received in a receiving groove (100) of the carriage base (10); The invention is characterized in that the ink cartridge assembly (30) can be detachably connected to the upper cover (20) and can be turned downward together with the upper cover (20) to be accommodated in the receiving groove (100) of the carriage base (10); A first elastic member (11) acts on the upper cover plate (20) and causes the upper cover plate (20) to always have a tendency to flip upward; A first locking assembly is provided between the second end of the upper cover plate (20) and the carriage base (10), and is used to lock the second end of the upper cover plate (20) on the carriage base (10); The carriage base (10) comprises a base body (14) and a front cover (13) provided on the front side of the base body (14); the bottom of the front cover (13) is hinged to the base body (14) and can be turned forward and backward; The first locking assembly comprises a limiting rod (21) provided on the front end of the upper cover (20) and an elastic blocking piece (131) provided on the front cover (13); the elastic blocking piece (131) extends backward from the wall surface of the front cover (13) and is inclined downward, so as to limit the limiting rod (21) from above; A V-shaped spring sheet (15) is provided on the front cover (13), one side of the V-shaped spring sheet (15) is fixed to the inner wall of the front cover (13), and the other side of the V-shaped spring sheet (15) is pressed against the front of the ink cartridge assembly (30) to press the ink cartridge assembly (30) backward; The bottom of the upper cover plate has a strip-shaped slot (200) for inserting the ink cartridge assembly (30) from front to back, and a pressure plate assembly capable of acting on the top of the ink cartridge assembly (30) to press the ink cartridge assembly (30) downward, the pressure plate assembly comprising: A strip-shaped pressing plate (40), both sides of which are rotatably connected to the upper cover plate (20) via first limiting columns (43) so as to be able to rotate up and down relative to the upper cover plate (20); A second elastic member (41) is provided between the rear portion of the strip-shaped pressing plate (40) and the upper cover plate (20), and enables the rear portion of the strip-shaped pressing plate (40) to always have a tendency to move downward; Two second limiting columns (42) are provided on both sides of the rear portion of the strip-shaped pressing plate (40), and two limiting retaining walls (24) capable of correspondingly limiting the two second limiting columns (42) at the bottom are provided on the upper cover plate (20); The ink cartridge assembly comprises a main ink cartridge (50), and a limit stop portion (500) is provided on the top wall of the main ink cartridge (50). When the main ink cartridge (50) is inserted into the strip slot (200) of the upper cover (20), the rear portion of the strip pressure plate (40) presses against the top position of the main ink cartridge (50), applying a downward pressure to the main ink cartridge (50), and the rear end of the strip pressure plate (40) can press against the limit stop portion (500) to limit the main ink cartridge (50) backward.

2. The carriage device according to claim 1, characterized in that: The first elastic member (11) is a torsion spring, one end of which abuts against the carriage base (10), and the other end abuts against the upper cover (20).

3. The carriage device according to claim 1 or 2, characterized in that: The upper cover (20) comprises at least two vertical plates (22) extending downward and arranged at intervals, a strip slot (200) for inserting the ink cartridge assembly (30) is formed between two adjacent vertical plates (22), and the opposite walls of the strip slot (200) are provided with strip slide grooves (220) that are consistent with the length direction of the upper cover (20), and both sides of the ink cartridge assembly (30) are provided with limiting ribs (31), and the ink cartridge assembly (30) is connected to the two strip slide grooves (220) of the upper cover (20) by being correspondingly inserted into the two limiting ribs (31).

4. The carriage device according to claim 3, characterized in that: There are three vertical plates (22), and two parallel-arranged strip slots (200) are formed between the three vertical plates (22). There are two ink cartridge assemblies (30), namely a color ink cartridge assembly (30a) and a black ink cartridge assembly (30b). The color ink cartridge assembly (30a) and the black ink cartridge assembly (30b) are respectively inserted into the two strip slots (200).

5. The carriage device according to claim 1, characterized in that: The ink cartridge assembly (30) comprises a main ink cartridge (50) and an ink sac (60) for supplying ink to the main ink cartridge (50); the ink sac (60) is detachably connected to the main ink cartridge (50) to form an integral part; when the integral part is inserted into the strip-shaped slot (200), the main ink cartridge (50) is located at the rear of the strip-shaped slot (200) and the ink sac (60) is located at the front of the strip-shaped slot (200).

6. The carriage device according to claim 5, characterized in that: The position-limiting stop (500) is a stopper convexly arranged on the top wall of the main ink cartridge (50) or a downwardly recessed slot structure.

7. The carriage device according to claim 5, characterized in that: The main ink cartridge (50) comprises an ink cartridge body (51), an ink supply connector (53) arranged on the ink cartridge body (51), a cover body (57) arranged on the upper portion of the ink cartridge body (51) and covering the outer side of the ink supply connector (53), a socket (520) being provided on the side of the cover body (57), and an end portion of the ink supply connector (53) facing the socket (520); The ink sac (60) comprises a first box body (61) having an ink storage cavity. One side of the first box body (61) has an outwardly protruding insertion portion (62). The insertion portion (62) has an ink supply channel (63) communicating with the ink storage cavity. The insertion portion (62) can be inserted from the socket (520) of the cover body (57) and embedded in the cover body (57) to connect the ink supply connector (53) of the main ink cartridge (50) with the ink supply channel (63) of the ink sac (60).

8. The carriage device according to claim 7, characterized in that: A valve cavity (64) is formed at the end of the ink supply channel (63) of the insertion portion (62), and a control valve structure capable of blocking the ink supply channel (63) in a natural state is provided in the valve cavity (64). When the ink supply connector (53) of the main ink cartridge (50) is inserted into the end of the ink supply channel (63), the control valve structure can be driven to open.

9. The carriage device according to claim 8, characterized in that: The control valve structure includes: a sealing ring (70) provided at the end of the ink supply channel (63) of the inserting portion (62), capable of being inserted into the ink supply connector (53) and in sealing contact with the outer wall of the ink supply connector (53); The valve core (71) is movably arranged in the valve cavity (64) and can move backward to abut against the sealing ring (70) to disconnect the ink supply channel (63); The third compression spring (72) is arranged in the valve cavity (64), acts on the valve core (71), and makes the valve core (71) always have a tendency to move backward.

10. The carriage device according to claim 9, characterized in that: A liquid inlet notch (530) for allowing ink in the valve cavity (64) to enter the ink supply connector (53) is provided on a side wall of the ink supply connector (53).

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