Cartridge assembly for automatic dispensing

Abstract

The utility model discloses a kind of ink cartridge assemblies for automatic feeding, including ink cartridge body, the opening end of ink cartridge body is equipped with liquid extraction adapter component, piston assembly for controlling on-off state is equipped in the liquid extraction adapter component;The outer adapter component is equipped in the liquid extraction adapter component, gas passage and liquid extraction passage are equipped in outer adapter component, the chamber of ink cartridge body is arranged when gas passage is opened Conduction;Gas passage and liquid extraction passage are arranged apart from each other.The utility model sets outer adapter component on ink cartridge body, gas passage and liquid extraction passage are equipped in adapter body, sealing effect is good and liquid extraction is more smooth.

Description

Technical Field

[0001] This utility model belongs to the technical field of washing machine accessories, specifically relating to an ink cartridge assembly for automatic dispensing. Background Technology

[0002] Currently, washing machines on the market typically include a detergent dispenser, which is a movable container. The dispenser itself does not have a liquid storage function; instead, it often houses one or more ink cartridges, which do have a liquid storage function. Users can refill the ink cartridges with detergent multiple times. A typical ink cartridge on the market includes the cartridge body, a vent valve, and a liquid extraction adapter. Existing patent publication number CN214613150U discloses an automatic detergent dispenser, including a liquid storage box, a vent valve, and a liquid extraction adapter assembly. The top of the liquid storage box is equipped with a vent valve or a vent membrane assembly, and one end of the liquid storage box has a liquid extraction port. The liquid extraction adapter assembly is detachably installed at the liquid extraction port, and its outer surface seals against the inner wall of the liquid extraction port. A check valve is also included within the liquid extraction adapter assembly. Existing liquid storage boxes require a separate opening, and the vent valve is installed at this separate opening, resulting in a complex structure and cumbersome assembly process. Furthermore, the separate vent valve requires high sealing performance, making the liquid storage box susceptible to leakage. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing an ink cartridge assembly for automatic dispensing. This invention incorporates an external adapter assembly on the ink cartridge body, with a venting channel and a liquid extraction channel inside the adapter body, resulting in good sealing and smoother liquid extraction.

[0004] The objective of this invention is achieved through the following technical solution: an ink cartridge assembly for automatic dispensing, comprising an ink cartridge body, an ink extraction adapter assembly installed at the open end of the ink cartridge body, the ink extraction adapter assembly having a piston assembly for controlling the on / off state; the ink extraction adapter assembly having an external adapter assembly, the external adapter assembly having a venting channel and an extraction channel, the venting channel being open to connect to the chamber of the ink cartridge body; the venting channel and the extraction channel being separated from each other.

[0005] Preferably, the liquid extraction adapter assembly includes a sealing cap and a protective cap body, which are welded together. The external adapter assembly includes an adapter body, which has a venting channel and a liquid extraction channel. The sealing cap is installed at the open end of the ink cartridge body, and the protective cap body extends into the ink cartridge body. A vent is provided between the chamber of the protective cap body and the ink cartridge body, and the venting channel is connected to the vent when the vent is open. A liquid extraction port is provided between the protective cap body and the ink cartridge body, and the piston assembly can extend and retract relative to the liquid extraction port. A first irregularly shaped sealing element is provided between the liquid extraction adapter assembly and the inner wall of the ink cartridge body for sealing. The external adapter assembly is detachably installed in the sealing cap body.

[0006] Preferably, the external adapter assembly includes an adapter body, a second irregular-shaped seal, and a third irregular-shaped seal, both of which are mounted on the adapter body; the adapter body has a mutually separated venting channel and a liquid extraction channel; the liquid extraction adapter assembly has a piston assembly inside, and when the external adapter assembly is installed into the sealing cap body, the adapter body pushes the piston assembly to move.

[0007] Preferably, the piston assembly includes a piston body, a first spring, and a first sealing ring; the piston body is disposed between the sealing cap and the cover body, and the first spring is disposed between the piston body and the cover body; the piston body is provided with the first sealing ring, and the end of the cover body near the sealing cap is provided with a cover liquid extraction port, the end of the liquid extraction channel is adjacent to the cover liquid extraction port, and in the default state, the first sealing ring blocks the end of the sealing cap; the cover body is also provided with an annular groove, the annular groove is provided with a second sealing ring, and the annular groove is provided with a ventilation channel and a ventilation hole provided in the ink cartridge body; the second irregular seal and the third irregular seal are both disposed between the outer wall of the adapter body and the inner wall of the sealing cap.

[0008] Preferably, the liquid extraction channel includes an outlet, an intermediate liquid flow channel, and a transfer extraction port. The outlet, intermediate liquid flow channel, and transfer extraction port are interconnected and disposed on the adapter body. When the adapter body is installed on the sealing cover, the transfer extraction port and the cover extraction port are interconnected. The venting channel includes an inlet, an intermediate gas channel, and an outlet. The inlet, intermediate gas channel, and outlet are all interconnected and disposed on the adapter body. When the adapter body is installed on the sealing cover, the adapter body and the liquid extraction adapter assembly surround to form an inlet chamber. The inlet chamber is interconnected with the outlet and a vent hole. When the adapter body is installed on the ink cartridge body, the inlet is positioned higher than the upper surface of the ink cartridge body.

[0009] Preferably, a welding part is provided between the sealing cover and the protective cover body, and a fifth sealing ring is also provided between the sealing cover and the protective cover body; the welding part and the fifth sealing ring are respectively located on both sides of the vent hole.

[0010] By default, the external adapter assembly is not installed on the cartridge body, and the cartridge body is in an un-extracted state. At this time, the first sealing ring on the piston body abuts against the end of the sealing cover, and the second sealing ring blocks the vent. Simultaneously, the welded joint and the fifth sealing ring seal the adapter assembly and the cartridge body, preventing detergent from leaking out of the cartridge. When the external adapter assembly is installed on the sealing cover of the cartridge body, the adapter body connects to the piston pump on the washing machine. The piston pump creates negative pressure at the outlet, forcing the detergent from the cartridge body through the cover's extraction port, the adapter's extraction port, and the intermediate liquid channel, finally entering the washing machine through the outlet. When detergent is continuously drawn from the ink cartridge, a negative pressure is generated inside the cartridge. At this time, the internal pressure of the cartridge is lower than the external atmospheric pressure. External air flows sequentially through the air inlet, the intermediate gas channel, the air outlet, and the air inlet chamber, then reaches the vent. Under the influence of the external air pressure, the second sealing ring in the annular groove is forced open, opening the vent. This allows gas to continuously enter the cartridge, automatically balancing the internal pressure and preventing deformation. When the piston pump stops working, the pressure inside the cartridge returns to its default initial state, the second sealing ring automatically resets and re-blocks the vent, preventing detergent leakage. The fifth sealing ring and the welded part effectively separate the liquid extraction channel and the vent channel, preventing detergent leakage. Furthermore, the opposing positions of the welded part and the fifth sealing ring ensure a better seal between the sealing cap and the protective cap.

[0011] Preferably, the piston assembly includes a piston body, a first spring, a second spring, and a second piston; one end of the piston body is adjacent to the second piston, and the other end of the piston body is adjacent to the cover body; a first sealing ring is installed on the piston body, and in the default state, the first sealing ring abuts against the end of the second piston; a third sealing ring and a fourth sealing ring are respectively arranged side by side and adjacent to each other on the outer wall of the second piston; a vent hole is provided at the end of the cover body near the second piston, and the third and fourth sealing rings are respectively arranged on both sides of the vent hole; a cover liquid extraction port is provided at the end of the cover body near the second piston, and the fourth sealing ring is arranged near the cover liquid extraction port; the end of the liquid extraction channel is adjacent to the cover liquid extraction port, and the end of the venting channel is connected to the vent hole; a second irregularly shaped sealing element is arranged between the adapter body and the sealing cover body, and a third irregularly shaped sealing element is arranged between the adapter body and the inner wall of the second piston.

[0012] Preferably, the liquid extraction channel includes an outlet, an intermediate liquid flow channel, and a transfer extraction port. The outlet, intermediate liquid flow channel, and transfer extraction port are interconnected and disposed on the adapter body. When the adapter body is installed on the sealing cover, the transfer extraction port and the cover extraction port are interconnected. The venting channel includes an inlet, an intermediate gas channel, and an outlet. The inlet, intermediate gas channel, and outlet are all interconnected and disposed on the adapter body. When the adapter body is installed on the sealing cover, the adapter body, the second piston, and the liquid extraction adapter assembly surround to form an inlet chamber. The inlet chamber is connected to the outlet and a vent hole. When the adapter body is installed on the ink cartridge body, the inlet is positioned higher than the upper surface of the ink cartridge body. When the adapter body is installed on the ink cartridge body, the fourth sealing ring separates the liquid extraction channel and the venting channel.

[0013] Preferably, a first spring is provided between the piston body and the cover body, with one end of the first spring mounted on the cover body and the other end mounted on the piston body; a second spring is provided between the second piston and the sealing cover, with one end of the second spring mounted on the second piston and the other end mounted on the sealing cover body; in the default state, the piston body and the second piston are fitted together, and the third sealing ring abuts against the inner wall of the edge of the vent hole; the elastic force of the first spring is set to be greater than the elastic force of the second spring.

[0014] By default, the external adapter assembly is not installed on the cartridge body, and the cartridge body is in an un-extracted state. At this time, the first sealing ring on the piston body abuts against the opening of the second piston under the action of the first spring. Simultaneously, the piston body pushes the second piston to the left, causing the third sealing ring to tightly adhere to the inner wall of the adapter assembly. This seals the cartridge body and prevents detergent from leaking out. Here, the spring force of the first spring is greater than that of the second spring, allowing the piston body to press against the second piston to the left without external force. When extraction is required, the external adapter assembly is installed onto the sealing cover of the cartridge body. When the adapter body is installed in place, the piston body is compressed, causing the first sealing ring to move away from the second piston, and the liquid extraction channel is open. Since the second piston is no longer limited by the piston body, it moves to the right under the action of the second spring, thus pressing against the inner wall of the cover body. The fourth sealing ring then separates the venting channel and the liquid extraction channel. A second irregularly shaped seal is provided here to prevent detergent from overflowing through the vent. A third irregularly shaped seal is provided to prevent gas from entering the liquid extraction channel along the gaps. Simultaneously, the air inlet is positioned higher than the upper surface of the cartridge body to prevent detergent inside the cartridge body from overflowing from the venting channel under its own pressure. When the washing machine's piston pump is continuously operating, the adapter body connects to the piston pump on the washing machine. The operation of the piston pump creates negative pressure at the liquid outlet. The detergent inside the cartridge body passes sequentially through the cover's liquid extraction port, the adapter's liquid extraction port, and the intermediate liquid flow channel, finally entering the washing machine through the liquid outlet. As the detergent is continuously extracted, a negative pressure is created inside the ink cartridge, making the internal pressure lower than the external atmospheric pressure. External air then flows sequentially through the air inlet, the intermediate gas channel, the air outlet, and the air inlet chamber, before reaching the vent and entering the ink cartridge body. This balances the internal pressure of the ink cartridge, preventing deformation and facilitating smoother detergent extraction.

[0015] Compared with the prior art, this utility model has the following advantages: 1. The ink cartridge body and the liquid extraction adapter assembly can be opened to each other, which facilitates the addition of detergent into the ink cartridge body. The ink cartridge body can be reused, and its versatility is better; 2. A vent hole and a liquid extraction port are provided in the liquid extraction adapter assembly, and corresponding venting channels and liquid extraction channels are provided on the external adapter assembly, which facilitates the entry of outside air into the ink cartridge body. At the same time, the detergent in the ink cartridge body can be smoothly discharged, resulting in good ventilation and smoother liquid output; 3. The venting channel and the liquid extraction adapter assembly are both installed on one open end of the ink cartridge body, making the overall structure of the ink cartridge body more complete, reducing manufacturing costs, and extending service life. Attached Figure Description

[0016] Figure 1 A 3D view of the ink cartridge body and liquid extraction adapter assembly during assembly; Figure 2 This is a diagram showing the usage state of this utility model; Figure 3 This is a schematic diagram of the internal structure of the external adapter component; Figure 4 This is a schematic diagram of the internal structure of the liquid extraction adapter assembly; Figure 5 A 3D view of the piston assembly; Figure 6 This is a schematic diagram of the internal structure of the present invention; Figure 7 A schematic diagram of the internal structure when the external adapter is installed onto the ink cartridge body; Figure 8 A schematic diagram showing the structure for the interchanged installation of the welded part and the fifth sealing ring; Figure 9 This is a schematic diagram of the ink cartridge body in the closed state in Example 2; Figure 10 This is a schematic diagram of the ink cartridge body in the open state in Example 2; The markings in the diagram are as follows: 1. Ink cartridge body; 2. Liquid extraction adapter assembly; 21. Sealing cover; 22. Protective cover body; 23. Annular groove; 24. Second sealing ring; 3. Piston assembly; 31. Piston body; 32. First spring; 33. First sealing ring; 34. Second spring; 35. Second piston; 4. External adapter assembly; 41. Adapter body; 42. Second irregular seal; 43. Third irregular seal; 44. Liquid outlet; 45. Intermediate liquid flow channel; 46. Adapter liquid extraction port; 47. Air inlet; 48. Intermediate gas channel; 49. Air outlet; 410. Air inlet chamber; 5. Vent hole; 6. Protective cover liquid extraction port; 7. First irregular seal; 8. Welded part; 9. Fifth sealing ring; 10. Third sealing ring; 11. Fourth sealing ring. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: Example 1 like Figures 1 to 8As shown, this embodiment discloses an ink cartridge assembly for automatic dispensing, including an ink cartridge body 1. An ink extraction adapter assembly 2 is installed at the open end of the ink cartridge body 1. The ink extraction adapter assembly 2 includes a sealing cap 21 and a protective cap body 22. A piston assembly 3 for controlling the on / off state is provided inside the ink extraction adapter assembly 2. An external adapter assembly 4 is detachably installed inside the sealing cap 21. The external adapter assembly 4 includes an adapter body 41, which has a venting channel and an ink extraction channel. A vent hole 5 is provided between the protective cap body 22 and the chamber of the ink cartridge body 1. When the vent hole 5 is open, the venting channel connects to the vent hole 5. A protective cap ink extraction port 6 is provided between the protective cap body 22 and the ink cartridge body 1. The piston assembly 3 can extend and retract relative to the protective cap ink extraction port 6.

[0018] The sealing cover 21 and the protective cover body 22 are welded together. The sealing cover 21 is installed at the open end of the ink cartridge body 1, and the protective cover body 22 extends into the ink cartridge body 1. A first irregularly shaped sealing element 7 for sealing is provided between the liquid extraction adapter assembly 2 and the inner wall of the ink cartridge body 1. The external adapter assembly 4 is detachably installed inside the sealing cover 21. The external adapter assembly 4 includes an adapter body 41, a second irregularly shaped sealing element 42, and a third irregularly shaped sealing element 43. The second irregularly shaped sealing element 42 and the third irregularly shaped sealing element 43 are both installed on the adapter body 41. The adapter body 41 has a venting channel and a liquid extraction channel that are separated from each other. The liquid extraction adapter assembly 2 has a piston assembly 3. When the external adapter assembly 4 is installed into the sealing cover 21, the adapter body 41 pushes the piston assembly 3 to move. The piston assembly 3 includes a piston body 31, a first spring 32, and a first sealing ring 33. The piston body 31 is disposed between the sealing cap 21 and the cover body 22, and the first spring 32 is disposed between the piston body 31 and the cover body 22. The piston body 31 is provided with the first sealing ring 33. The end of the cover body 22 near the sealing cap 21 is provided with a cover liquid extraction port 6. The end of the liquid extraction channel is adjacent to the cover liquid extraction port 6. In the default state, the first sealing ring 33 blocks the end of the sealing cap 21. The cover body 22 is also provided with an annular groove 23. The annular groove 23 is provided with a second sealing ring 24. The annular groove 23 is provided with a ventilation channel and a ventilation hole 5 provided in the ink cartridge body 1. The second irregular seal 42 and the third irregular seal 43 are both disposed between the outer wall of the adapter body 41 and the inner wall of the sealing cap 21. The liquid extraction channel includes an outlet 44, an intermediate liquid flow channel 45, and a transfer extraction port 46. The outlet 44, the intermediate liquid flow channel 45, and the transfer extraction port 46 are interconnected and disposed on the adapter body 41. When the adapter body 41 is installed on the sealing cover 21, the transfer extraction port 46 and the cover extraction port 6 are interconnected. The venting channel includes an air inlet 47, an intermediate gas channel 48, and an air outlet 49. The air inlet 47, the intermediate gas channel 48, and the air outlet 49 are all interconnected and disposed on the adapter body 41. When the adapter body 41 is installed on the sealing cover 21, the adapter body 41 and the liquid extraction adapter assembly 2 surround each other to form an air inlet chamber 410. The air inlet chamber 410 is connected to the air outlet 49 and the vent hole 5. When the adapter body 41 is installed on the ink cartridge body 1, the air inlet 47 is positioned higher than the upper surface of the ink cartridge body 1. A welding part 8 is provided between the sealing cover 21 and the protective cover body 22, and a fifth sealing ring 9 is also provided between the sealing cover 21 and the protective cover body 22; the welding part 8 and the fifth sealing ring 9 are respectively provided on both sides of the vent hole 5.

[0019] The specific operation process of this embodiment is as follows: In the default state, the external adapter component 4 is not installed on the ink cartridge body 1, and the ink cartridge body 1 is in a non-liquid extraction state; at this time, the first sealing ring 33 on the piston body 31 abuts against the end of the sealing cover 21, and the second sealing ring 24 blocks the vent hole 5; at the same time, the welding part 8 and the fifth sealing ring 9 keep the liquid extraction adapter component 2 and the ink cartridge body 1 in a sealed state, so that the detergent in the ink cartridge body 1 cannot overflow. When the external adapter component 4 is installed on the sealing cover 21 of the ink cartridge body 1, the adapter body 41 is connected to the piston pump on the washing machine. When the piston pump works, a negative pressure is formed at the liquid outlet 44. The detergent in the ink cartridge body 1 passes through the cover liquid extraction port 6, the adapter liquid extraction port 46 and the intermediate liquid flow channel 45 in sequence, and finally enters the washing machine from the liquid outlet 44. When detergent is continuously drawn from the ink cartridge body 1, a negative pressure is generated inside the ink cartridge body 1. At this time, the internal pressure of the ink cartridge body 1 is less than the external atmospheric pressure. The outside air will flow sequentially along the air inlet 47, the intermediate gas channel 48, the air outlet 49, and the air inlet chamber 410, and then reach the vent 5 from the air inlet chamber 410. Under the action of the external air pressure, the second sealing ring 24 in the annular groove 23 will be pushed open, and the vent 5 will be in the open state. Then, gas can continuously enter the ink cartridge body 1, and the pressure inside the ink cartridge body 1 can be automatically balanced, so the ink cartridge body 1 will not be squeezed or deformed. When the piston pump stops working, the pressure inside the ink cartridge body 1 returns to the default initial state, the second sealing ring 24 automatically resets and re-blocks the vent 5, so that detergent will not overflow. Here, the fifth sealing ring 9 and the welded part 8 can better separate the liquid drawing channel and the venting channel, thus preventing detergent from overflowing; at the same time, the positions of the welded part 8 and the fifth sealing ring 9 can be set opposite each other, which can provide better sealing between the sealing cover 21 and the protective cover body 22.

[0020] Example 2 like Figures 9 to 10As shown, the piston assembly in this embodiment differs from that in Embodiment 1, but other structures are the same as in Embodiment 1. The piston assembly 3 disclosed in this embodiment includes a piston body 31, a first spring 32, a second spring 34, and a second piston 35. The piston body 31 and the second piston 35 are arranged adjacent to each other. A first sealing ring 33 is installed on the piston body 31. In the default state, the first sealing ring 33 abuts against the end of the second piston 35. A third sealing ring 10 and a fourth sealing ring 11 are respectively arranged side by side and adjacent to each other on the outer wall of the second piston 35. The cover body 22 is close to the second piston. The end of piston 35 is provided with a vent hole 5, and the third sealing ring 10 and the fourth sealing ring 11 are respectively provided on both sides of the vent hole 5; the end of the cover body 22 near the second piston 35 is provided with a cover liquid extraction port 6, and the fourth sealing ring 11 is provided near the cover liquid extraction port 6; the end of the liquid extraction channel is adjacent to the cover liquid extraction port 6, and the end of the venting channel is connected to the vent hole 5; the second irregular seal 42 is provided between the adapter body 41 and the sealing cover body 21, and the third irregular seal 43 is provided between the adapter body 41 and the inner wall of the second piston 35. The liquid extraction channel includes a liquid outlet 44, an intermediate liquid flow channel 45, and a transfer liquid extraction port 46. The liquid outlet 44, the intermediate liquid flow channel 45, and the transfer liquid extraction port 46 are interconnected and disposed on the adapter body 41. When the adapter body 41 is installed on the sealing cover 21, the transfer liquid extraction port 46 and the cover liquid extraction port 6 are interconnected. The venting channel includes an air inlet 47, an intermediate gas channel 48, and an air outlet 49. The air inlet 47, the intermediate gas channel 48, and the air outlet 49 are all interconnected and disposed on the adapter body 41. When the adapter body 41 is installed on the sealing cover 21, the adapter body 41, the second piston 35, and the liquid extraction adapter assembly 2 surround and form an air inlet chamber 410. The air inlet chamber 410 is respectively connected to the air outlet 49 and the vent hole 5. When the adapter body 41 is installed on the ink cartridge body 1, the air inlet 47 is set higher than the upper end surface of the ink cartridge body 1. When the adapter body 41 is installed on the ink cartridge body 1, the fourth sealing ring 11 separates the liquid extraction channel and the vent channel. A first spring 32 is provided between the piston body 31 and the cover body 22. One end of the first spring 32 is installed on the cover body 22, and the other end of the first spring 32 is installed on the piston body 31. A second spring 34 is provided between the second piston 35 and the sealing cover 21. One end of the second spring 34 is installed on the second piston 35, and the other end of the second spring 34 is installed inside the sealing cover 21. In the default state, the piston body 31 and the second piston 35 are fitted together, and the third sealing ring 10 abuts against the inner wall of the edge of the vent hole 5. The elastic force of the first spring 32 is set to be greater than the elastic force of the second spring 34.

[0021] The specific operation process of this implementation is as follows: In the default state, the external adapter assembly 4 is not installed on the ink cartridge body 1, and the ink cartridge body 1 is in a non-liquid extraction state. At this time, the first sealing ring 33 on the piston body 31 abuts against the opening end of the second piston 35 under the action of the first spring 32. At the same time, the piston body 31 pushes the second piston 35 to the left, so that the third sealing ring 10 is tightly attached to the inner wall of the adapter body 41. In this way, the liquid extraction adapter assembly 2 and the ink cartridge body 1 are in a sealed state, and the detergent in the ink cartridge body 1 cannot overflow. Here, the elastic force of the first spring 32 is greater than the elastic force of the second spring 34. Under the action of no external force, the piston body 31 can press to the left to contact the second piston 35. When liquid extraction is required, the external adapter assembly 4 is installed on the ink cartridge body 1. On the cap body 21; when the adapter body 41 is installed in place, the piston body 31 is squeezed, causing the first sealing ring 33 to move away from the second piston 35, and the liquid extraction channel is in the open state; since the second piston 35 is no longer limited by the piston body 31, the second piston 35 moves to the right under the action of the second spring 34, so that the second piston 35 will be in close contact with the inner wall of the cap body 22, and the fourth sealing ring 11 will separate the venting channel and the liquid extraction channel; here, a second irregular seal 42 is set to prevent detergent from overflowing through the vent hole 5; by setting a third irregular seal 43, gas is prevented from entering the liquid extraction channel along the gap; at the same time, the air inlet 47 is set higher than the upper end surface of the ink cartridge body 1 to prevent the detergent in the ink cartridge body 1 from overflowing from the venting channel under its own pressure. When the piston pump of the washing machine is working continuously, the adapter body 41 is connected to the piston pump on the washing machine. The operation of the piston pump creates a negative pressure at the outlet 44. The detergent in the cartridge body 1 will sequentially pass through the cover suction port 6, the adapter suction port 46, and the intermediate liquid flow channel 45, and finally enter the washing machine from the outlet 44. As the detergent is continuously extracted, a negative pressure is generated inside the cartridge body 1, and the internal pressure of the cartridge body 1 is lower than the external atmospheric pressure. The outside air will sequentially flow along the air inlet 47, the intermediate gas channel 48, the air outlet 49, and the air inlet chamber 410, and then reach the vent 5 from the air inlet chamber 410, and then enter the interior of the cartridge body 1 from the vent 5. This balances the internal pressure of the cartridge body 1, prevents the cartridge body 1 from deforming, and makes detergent extraction smoother. When the external adapter assembly 4 is removed from the cartridge body 1, the cartridge body 1 automatically resets to the initial closed state.

[0022] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A cartridge assembly for automatic dispensing, comprising a cartridge body (1), characterized in that, The ink cartridge body (1) is equipped with a liquid extraction adapter assembly (2) at its open end. The liquid extraction adapter assembly (2) is provided with a piston assembly (3) for controlling the on / off state. The liquid extraction adapter assembly (2) is provided with an external adapter assembly (4). The external adapter assembly (4) is provided with a venting channel and a liquid extraction channel. When the venting channel is open, it connects to the chamber of the ink cartridge body (1). The venting channel and the liquid extraction channel are separated from each other.

2. The ink cartridge assembly for automatic dispensing according to claim 1, characterized in that, The liquid extraction adapter assembly (2) includes a sealing cap (21) and a protective cap body (22), which are welded together. The external adapter assembly (4) includes an adapter body (41), which has a ventilation channel and a liquid extraction channel inside. A sealing cover (21) is installed at the open end of the ink cartridge body (1), and the cover body (22) extends into the ink cartridge body (1); a vent hole (5) is provided between the cover body (22) and the chamber of the ink cartridge body (1), and the vent hole (5) is connected to the vent hole (5) when the vent hole (5) is open; a cover liquid extraction port (6) is provided between the cover body (22) and the ink cartridge body (1), and the piston assembly (3) can extend and retract relative to the cover liquid extraction port (6); a first irregular seal (7) for sealing is provided between the liquid extraction adapter assembly (2) and the inner wall of the ink cartridge body (1); the external adapter assembly (4) is detachably installed in the sealing cover body (21).

3. The ink cartridge assembly for automatic dispensing according to claim 2, characterized in that, The external adapter assembly (4) includes an adapter body (41), a second irregular seal (42), and a third irregular seal (43). The second irregular seal (42) and the third irregular seal (43) are both installed on the adapter body (41). The adapter body (41) is provided with a mutually separated air passage and a liquid extraction passage. The liquid extraction adapter assembly (2) is provided with a piston assembly (3). When the external adapter assembly (4) is installed in the sealing cover (21), the adapter body (41) pushes the piston assembly (3) to move.

4. The ink cartridge assembly for automatic dispensing according to claim 3, characterized in that, The piston assembly (3) includes a piston body (31), a first spring (32), and a first sealing ring (33); the piston body (31) is disposed between the sealing cap body (21) and the cover body (22), and the first spring (32) is provided between the piston body (31) and the cover body (22); the piston body (31) is provided with the first sealing ring (33), and the end of the cover body (22) near the sealing cap body (21) is provided with a cover liquid extraction port (6), and the end of the liquid extraction channel is connected to the cover liquid extraction port (6). The first sealing ring (33) is set to block the end of the sealing cover (21) in the default state; the cover body (22) is also provided with an annular groove (23), the annular groove (23) is provided with a second sealing ring (24), the annular groove (23) is provided with a ventilation channel and a ventilation hole (5) provided by the ink cartridge body (1); the second irregular seal (42) and the third irregular seal (43) are both set between the outer wall of the adapter body (41) and the inner wall of the sealing cover (21).

5. The ink cartridge assembly for automatic dispensing according to claim 4, characterized in that, The liquid extraction channel includes an outlet (44), an intermediate liquid flow channel (45), and a transfer extraction port (46). The outlet (44), intermediate liquid flow channel (45), and transfer extraction port (46) are interconnected on the adapter body (41). When the adapter body (41) is installed on the sealing cover (21), the transfer extraction port (46) and the cover extraction port (6) are interconnected. The ventilation channel includes an air inlet (47), an intermediate gas channel (48), and an air outlet (49). The air inlet (47) 47) The intermediate gas channel (48) and the air outlet (49) are both connected to the adapter body (41). When the adapter body (41) is installed on the sealing cover (21), the adapter body (41) and the liquid extraction adapter assembly (2) surround and form an air inlet chamber (410). The air inlet chamber (410) is connected to the air outlet (49) and the vent (5). When the adapter body (41) is installed on the ink cartridge body (1), the air inlet (47) is higher than the upper surface of the ink cartridge body (1).

6. The ink cartridge assembly for automatic dispensing according to claim 4, characterized in that, A welding part (8) is provided between the sealing cover (21) and the cover body (22), and a fifth sealing ring (9) is also provided between the sealing cover (21) and the cover body (22); the welding part (8) and the fifth sealing ring (9) are respectively provided on both sides of the vent hole (5).

7. The ink cartridge assembly for automatic dispensing according to claim 3, characterized in that, The piston assembly (3) includes a piston body (31), a first spring (32), a second spring (34), and a second piston (35); one end of the piston body (31) is adjacent to the second piston (35), and the other end of the piston body (31) is adjacent to the cover body (22); a first sealing ring (33) is installed on the piston body (31), and in the default state, the first sealing ring (33) abuts against the end of the second piston (35); a third sealing ring (10) and a fourth sealing ring (11) are respectively arranged side by side and adjacent to each other on the outer wall of the second piston (35), and the end of the cover body (22) is close to the second piston (35). A vent hole (5) is provided, and the third sealing ring (10) and the fourth sealing ring (11) are respectively provided on both sides of the vent hole (5); the end of the cover body (22) near the second piston (35) is provided with a cover liquid extraction port (6), and the fourth sealing ring (11) is provided near the cover liquid extraction port (6); the end of the liquid extraction channel is adjacent to the cover liquid extraction port (6), and the end of the venting channel is connected to the vent hole (5); the second irregular seal (42) is provided between the adapter body (41) and the sealing cover body (21), and the third irregular seal (43) is provided between the adapter body (41) and the inner wall of the second piston (35).

8. The ink cartridge assembly for automatic dispensing according to claim 7, characterized in that, The liquid extraction channel includes an outlet (44), an intermediate liquid flow channel (45), and a transfer extraction port (46). The outlet (44), intermediate liquid flow channel (45), and transfer extraction port (46) are interconnected on the adapter body (41). When the adapter body (41) is installed on the sealing cover (21), the transfer extraction port (46) and the cover extraction port (6) are interconnected. The ventilation channel includes an air inlet (47), an intermediate gas channel (48), and an air outlet (49). The air inlet (47), intermediate gas channel (48), and air outlet (49) are all interconnected. On the adapter body (41), when the adapter body (41) is installed on the sealing cover (21), the adapter body (41), the second piston (35) and the liquid extraction adapter assembly (2) surround and form an air inlet chamber (410); the air inlet chamber (410) is respectively connected to the air outlet (49) and the vent (5); when the adapter body (41) is installed on the ink cartridge body (1), the air inlet (47) is set higher than the upper end face of the ink cartridge body (1); when the adapter body (41) is installed on the ink cartridge body (1), the fourth sealing ring (11) separates the liquid extraction channel and the vent channel.

9. The ink cartridge assembly for automatic dispensing according to claim 7, characterized in that, A first spring (32) is provided between the piston body (31) and the cover body (22). One end of the first spring (32) is installed on the cover body (22), and the other end of the first spring (32) is installed on the piston body (31). A second spring (34) is provided between the second piston (35) and the sealing cover (21). One end of the second spring (34) is installed on the second piston (35), and the other end of the second spring (34) is installed inside the sealing cover (21). In the default state, the piston body (31) and the second piston (35) are fitted together, and the third sealing ring (10) abuts against the inner wall of the edge of the vent hole (5). The elastic force of the first spring (32) is set to be greater than the elastic force of the second spring (34).

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