Liquid storage box, liquid box pipeline system and ink-jet printing device

Abstract

The utility model discloses a liquid storage box, a liquid box pipeline system and an ink-jet printing device, and relates to the technical field of printing equipment, the liquid storage box comprises a box body and an opening and closing structure, the box body is provided with a flow channel, and the flow channel is used for being cooperatively connected with a pipeline assembly of the ink-jet printing device; the opening and closing structure is arranged on the box body and located at the position of the flow channel, and the opening and closing structure is used for opening the flow channel when the pipeline assembly is connected with the flow channel and closing the flow channel when the pipeline assembly is separated from the flow channel. According to the technical scheme provided by the utility model, a better liquid leakage prevention effect of the liquid storage box is achieved, and the practicability and the structural reliability of the liquid storage box are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field, especially a kind of liquid storage box, liquid box pipeline system and ink-jet printing device. BACKGROUND

[0002] In related art, ink-jet printing device can be usually provided with waste liquid box and ink stack component pipeline connection, so that waste liquid generated by ink stack component to clean print head can be collected and stored in waste liquid box. Or set up ink cartridge and print head connection, ink supply for print head.

[0003] Most of ink-jet printing device is that pipeline is directly inserted into the liquid inlet or liquid outlet of liquid storage box such as waste liquid box or ink cartridge, liquid flows into liquid storage box from liquid inlet, or flows out of liquid storage box from liquid outlet. However, when pipeline is pulled out of liquid inlet or liquid outlet of liquid storage box, liquid in liquid storage box is easy to leak from liquid inlet or liquid outlet, so that liquid storage box has certain risk of liquid leakage when disassembling, and the practicability and structural reliability of liquid storage box are reduced. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of liquid storage box, liquid box pipeline system and ink-jet printing device, to realize the better liquid leakage prevention effect of liquid storage box, improve the practicability and structural reliability of liquid storage box.

[0005] To achieve the above-mentioned purpose, the utility model provides a liquid storage box, which comprises:

[0006] Box body, the box body is provided with receiving cavity and first connector, the first connector has flow channel communicated with the receiving cavity, and the first connector is used for inserting the pipeline assembly of ink-jet printing device;

[0007] Opening and closing structure is arranged in the first connector, the opening and closing structure includes a matching part that can cooperate with the pipeline assembly, so that the opening and closing structure has a first state matched with the pipeline assembly and a second state separated from the pipeline assembly, and the opening and closing structure is used to open the passage between the flow channel and the receiving cavity in the first state, and close the passage between the flow channel and the receiving cavity in the second state.

[0008] In an embodiment, the opening and closing structure comprises:

[0009] First valve body, the first valve body is arranged in the receiving cavity and covers the flow channel, the first valve body is provided with first valve cavity, and the first valve body is provided with communication hole communicated with the first valve cavity and the receiving cavity;

[0010] First valve core, the first valve core is movably arranged in the first valve cavity, so that the flow channel is communicated with the first valve cavity or the passage between the flow channel and the first valve cavity is blocked.

[0011] In an embodiment, the first valve core is movably arranged along an axial direction of the flow channel, and the opening and closing structure further comprises a first elastic member, two ends of the first elastic member abutting against an inner wall of the first valve cavity and the first valve core respectively.

[0012] In an embodiment, the first valve core comprises:

[0013] a sealing body movably arranged in the first valve cavity and having a first position and a second position, when the sealing body is in the first position, an end surface of the sealing body facing the flow channel abuts against a wall surface at the flow channel to block the flow channel from the first valve cavity, and when the sealing body is in the second position, the end surface of the sealing body facing the flow channel has a gap with the flow channel to allow the flow channel to communicate with the first valve cavity;

[0014] a trigger valve rod connected to one end of the sealing body facing the flow channel and penetrating the flow channel, and having a flow gap with an inner wall of the flow channel.

[0015] In an embodiment, the trigger valve rod comprises a first column and a first limiting rib, the first column is connected to the sealing body and penetrates the flow channel, and the first limiting rib is connected to a peripheral side of the first column and abuts against the inner wall of the flow channel.

[0016] and / or, the sealing body comprises a second column and a second limiting rib, one end of the second column is connected to the first elastic member, the other end of the second column is opposite to the flow channel, and the second limiting rib is connected to a peripheral side of the second column and abuts against the inner wall of the first valve cavity.

[0017] and / or, an installation boss is arranged on an inner wall of the first valve cavity opposite to the flow channel, the sealing body is arranged between the installation boss and the flow channel, one end of the first elastic member is sleeved on the installation boss, and the other end of the first elastic member is sleeved on the sealing body.

[0018] In an embodiment, the liquid storage box further comprises a liquid level detection assembly arranged in the box body and used for detecting a liquid level in the box body.

[0019] In an embodiment, the liquid level detection assembly comprises a float and a sensing element, the float is connected to a wall surface of the receiving cavity in a translational or oscillating manner, the sensing element is arranged on a top surface of the box body, the float can oscillate or translate with a change in the liquid level in the receiving cavity, and the float can trigger the sensing element when the liquid level in the receiving cavity reaches a preset liquid level.

[0020] In an embodiment, the liquid cartridge further comprises a position detection assembly arranged on the outside of the cartridge body, which is triggered by an element in the inkjet printing device to detect the installation position of the cartridge body in the inkjet printing device.

[0021] The utility model discloses further propose a kind of liquid cartridge pipeline system, the liquid cartridge pipeline system includes:

[0022] The liquid cartridge as described above, and

[0023] Pipeline assembly, the pipeline assembly includes second joint, the second joint is inserted in the flow channel of the liquid cartridge and is matched with the opening and closing structure, so that the opening and closing structure is in the first state and the internal passage of the second joint is in open state, in the case where the second joint is separated from the flow channel, the opening and closing structure is in the second state, and the internal passage of the second joint is in closed state.

[0024] In an embodiment, the pipeline assembly further comprises a liquid discharge pipeline, and the second joint comprises:

[0025] Second valve body, the second valve body is connected to the end of the liquid discharge pipeline, and a second valve cavity and a liquid outlet hole communicating with the second valve cavity are arranged in the second valve body;

[0026] Second valve core, the second valve core is movably arranged in the second valve cavity to open or close the liquid outlet hole.

[0027] In an embodiment, the second valve core is movably arranged along the axial direction of the liquid outlet hole, and the second joint further comprises a second elastic member, which is abutted between the inner wall of the second valve cavity and the second valve core.

[0028] And / or, the second joint further comprises a sealing member arranged on the outer periphery of the second valve body.

[0029] The utility model discloses further propose a kind of inkjet printing device, the inkjet printing device includes the liquid cartridge pipeline system as described above.

[0030] The technical solution of the present invention is to provide an opening and closing structure at the flow channel of the box body, so that the opening and closing structure can be triggered when the pipeline assembly of the inkjet printing device is cooperatively connected with the flow channel, so that the opening and closing structure is in a first state to open the passage between the flow channel and the receiving chamber, so that the pipeline assembly can stably discharge and store the liquid into the box body or flow out of the box body. At this time, since the flow channel and the pipeline assembly are cooperatively connected, it is possible to well avoid liquid overflowing from the flow channel during the liquid filling process; at the same time, when the pipeline assembly is detached from the flow channel, the opening and closing structure can be triggered accordingly, so that the opening and closing structure is in a second state to close the passage between the flow channel and the receiving chamber, effectively preventing liquid from overflowing from the flow channel when the liquid storage box is extracted and cleaned, thereby achieving a better anti-leakage effect of the liquid storage box and improving the practicality and structural reliability of the liquid storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0032] Figure 1 This is a structural diagram of an embodiment of the liquid box piping system provided by the utility model;

[0033] Figure 2 A partial cross-sectional view of an embodiment of a liquid storage box provided by the present utility model;

[0034] Figure 3 for Figure 2 A partial enlarged view of an embodiment;

[0035] Figure 4 for Figure 2 A partial enlarged view of another embodiment;

[0036] Figure 5 A partial cross-sectional view of another embodiment of the liquid storage box provided by the utility model;

[0037] Figure 6 A cross-sectional view of an embodiment of a second connector of the liquid box piping system provided by the present invention;

[0038] Figure 7 A schematic structural diagram of an embodiment of an inkjet printing device provided by the present invention;

[0039] Figure 8 for Figure 7 A partial structural exploded view of an embodiment of an inkjet printing device.

[0040] Description of Figure Numbers:

[0041] 5000, inkjet printing device; 1000, liquid cartridge pipeline system; 100, liquid storage cartridge; 10, cartridge body; 11, flow channel; 13, first joint; 30, opening and closing structure; 31, first valve body; 311, first valve cavity; 313, mounting boss; 33, first valve core; 331, trigger valve rod; 3311, first column body; 3313, first limiting rib; 333, sealing main body; 3331, second column body; 3333, second limiting rib; 35, first elastic piece; 50, liquid level detection assembly; 51, float; 53, sensing element; 55, rotating seat; 57, connecting rocker arm; 59, limiting baffle; 70, in-place detection assembly; 200, pipeline assembly; 20, second joint; 21, second valve body; 211, second valve cavity; 213, liquid outlet hole; 23, second valve core; 25, sealing piece; 40, liquid discharge pipeline; 300, shell; 400, printing platform; 500, printing head; 600, moving device; 700, ink stack assembly.

[0042] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0044] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0045] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears in the whole text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0046] In the related art, the inkjet printing device can be provided with a waste liquid box and a pipeline connected with the ink stack assembly, so that the waste liquid generated by the ink stack assembly for cleaning the print head can be collected and stored in the waste liquid box. Most of the inkjet printing devices directly insert the pipeline into the open liquid inlet at the top of the waste liquid box, so that the waste liquid flows into the waste liquid box from the liquid inlet. When a certain amount of waste liquid is collected in the waste liquid box, the pipeline can be directly pulled out to extract the waste liquid box for cleaning. However, when the liquid level in the waste liquid box is high or during the extraction and movement of the waste liquid box, the liquid in the waste liquid box is easy to overflow from the liquid inlet, resulting in a certain risk of liquid leakage when the waste liquid box is disassembled, which reduces the practicability and structural reliability of the waste liquid box. Or set the ink cartridge connected with the print head to supply ink to the print head; when the pipeline is pulled out, the ink in the ink cartridge is easy to flow out, resulting in ink leakage.

[0047] In view of the above problems, the utility model provides a liquid storage box 100.

[0048] Please refer to Figures 1 to 8 In an embodiment of the utility model, the liquid storage box 100 includes a box body 10 and an opening and closing structure 30, the box body 10 is provided with a receiving cavity and a first connector 13, the first connector 13 has a flow channel 11 communicated with the receiving cavity, and the first connector 13 is used for inserting the pipeline assembly 200 of the inkjet printing device 1000;The opening and closing structure 30 is arranged on the first connector 13, and the opening and closing structure 30 includes a matching part matched with the pipeline assembly 200, so that the opening and closing structure 30 has a first state matched with the pipeline assembly 200 and a second state separated from the pipeline assembly 200, and the opening and closing structure 30 is used to open the passage between the flow channel 11 and the receiving cavity in the first state, and close the passage between the flow channel 11 and the receiving cavity in the second state.

[0049] It can be understood that the inkjet printing device 5000 can include but is not limited to a DTF printer (Direct to Film), a DTG printer (Direct to Garment), a general inkjet printer, etc., which can use the print head 500 to spray ink on the printing material to form the required image or text. The printing material worked by the inkjet printing device 5000 can include but is not limited to cloth, film material, paper, etc. After the inkjet printing device 5000 performs inkjet printing for a certain period of time, the print head 500 can be moved above the ink stack assembly 700, and the ink stack assembly 700 can be used to clean and maintain the print head 500 to prevent ink from condensing at the inkjet end of the print head 500, avoid clogging of the print head 500, and ensure stable printing of the inkjet printing device 5000. At this time, the waste liquid generated by the ink stack assembly 700 cleaning the print head 500 can be transported to the liquid storage box 100 through the pipeline for storage, avoiding the risk of waste liquid splashing during the cleaning process of the ink stack assembly 700, and ensuring stable cleaning of the print head 500 by the ink stack assembly 700. The liquid storage box 100 can be an ink cartridge for supplying ink to the print head, or a clean water box or cleaning liquid box for supplying clean water or cleaning liquid to the ink stack assembly, or a waste liquid box for collecting waste liquid, etc. The present application takes the waste liquid box 100 as an example for description, and it can be understood that the following embodiments can also be applicable to the ink cartridge, the clean water box, the cleaning liquid box, etc.

[0050] The flow channel 11 can also be a liquid inflow channel or a liquid outflow channel. The present application takes the flow channel as an example for description of the liquid outflow channel, and it can be understood that the flow channel 11 as the liquid inflow channel also has similar principles.

[0051] In the present application, the liquid storage box 100 can adopt a box body 10 with a certain volume as a storage main body, which can be square, circular or other regular shapes. Of course, the box body 10 can also be irregularly shaped. The shape and material of the box body 10 are not limited in the present application. By setting a first joint 13 communicating with the storage cavity on the box body 10, and setting an opening and closing structure 30 at the first joint 13, the opening or closing of the flow channel 11 can be controlled by the opening and closing structure 30, realizing the communication or blockage of the flow channel 11 and the storage cavity, realizing the on-off control of the flow channel 11 and the storage cavity, and improving the practicability of the liquid storage box 100. The opening and closing structure 30 can be a valve joint that can be turned on and off, and the valve of the valve joint can be used to open or close the flow channel 11. Alternatively, the opening and closing structure 30 can be a cover plate movably connected to the box body 10, which can be used to cover or open the flow channel 11 by moving. Alternatively, the opening and closing structure 30 can also be a plunger moving axially along the flow channel 11, which can be used to block or move away from the flow channel 11 to realize the closing or opening of the flow channel 11. Of course, there are many forms of the opening and closing structure 30, and the present application does not limit the structure of the opening and closing structure 30, as long as it can stably realize the opening and closing of the flow channel 11 of the box body 10.

[0052] Therefore, under the action of the opening and closing structure 30, when the liquid storage box 100 is connected with the pipeline assembly 200, the flow channel 11 is opened by the opening and closing structure 30, so that the pipeline assembly 200 can stably deliver liquid into the box body 10 through the flow channel 11 or flow out from the box body 10 through the flow channel 11 to the pipeline assembly 200. When the pipeline assembly 200 is separated from the liquid storage box 100, the flow channel 11 can be closed by the opening and closing structure 30, effectively preventing the liquid in the box body 10 from overflowing from the flow channel 11 after the pipeline assembly 200 is separated. At the same time, the liquid in the box body 10 can also be effectively prevented from splashing out of the flow channel 11 during the extraction and movement of the liquid storage box 100, realizing better liquid leakage prevention effect of the liquid storage box 100, and improving the practicability and structural reliability of the liquid storage box 100.

[0053] The pipeline assembly 200 can be inserted into the end of the liquid discharge pipeline 40 at the first joint 13 and sealedly connected with the first joint 13. Alternatively, a plug or buckle that cooperates with the pipeline assembly 200 can be arranged on the surface of the box body 10 at a position corresponding to the first joint 13, and the end surface of the pipeline assembly 200 is sealedly abutted with the outer wall of the box body 10. Alternatively, the pipeline assembly 200 can be provided with a second joint 20 that cooperates with the first joint 13 at the pipe end of the liquid discharge pipeline 40, and the pipeline assembly 200 and the box body 10 are tightly communicated by cooperating the first joint 13 with the second joint 20. Thus, the pipeline assembly 200 and the first joint 13 can be cooperatively connected in a relatively sealed manner, avoiding liquid overflow from the flow channel 11 during the liquid discharge into the box body 10, and achieving better liquid leakage prevention effect of the liquid storage box 100. Of course, the cooperative connection mode of the pipeline assembly 200 and the first joint 13 is not limited to the above mode, and stable and sealed communication between the pipeline assembly 200 and the first joint 13 can be achieved.

[0054] In addition, the liquid storage box 100 can link the cooperation part of the opening and closing structure 30 with the pipeline assembly 200, so that when the pipeline assembly 200 cooperatively connects with the flow channel 11, the opening and closing structure 30 can be triggered, the opening and closing structure 30 opens the flow channel 11, and when the pipeline assembly 200 is detached from the box body 10, the abutment of the opening and closing structure 30 is released, and the opening and closing structure 30 resets to close the flow channel 11. Alternatively, the opening and closing structure 30 can be operated in an electrically controlled manner, and the liquid storage box 100 can be sensed by a sensor to detect the disassembly of the pipeline assembly 200 on the box body 10, so that when the pipeline assembly 200 cooperatively connects with the flow channel 11, a signal can be sent to control the opening and closing structure 30 to open the flow channel 11, and when the pipeline assembly 200 is detached, a signal can be sent to control the opening and closing structure 30 to close the flow channel 11, thereby ensuring stable opening and closing control of the opening and closing structure 30 on the flow channel 11. Of course, the opening and closing structure 30 can also respond to the disassembly action of the pipeline assembly 200 on the box body 10 in other ways, which is not limited in the present application, and the opening and closing structure 30 can be stably opened when the pipeline assembly 200 cooperatively connects with the flow channel 11, and the opening and closing structure 30 can be stably closed when the pipeline assembly 200 is detached from the box body 10.

[0055] The technical scheme of the utility model discloses a opening and closing structure 30 is arranged at the flow channel 11 of the box body 10, can trigger the opening and closing structure 30 when the pipeline assembly 200 of inkjet printing device 5000 is connected with the flow channel 11, make the opening and closing structure 30 be in the first state and open the passage between flow channel 11 and the accommodation cavity, so that the pipeline assembly 200 can stably discharge and store liquid into the box body 10, at this time, due to the cooperation of flow channel 11 and pipeline assembly 200, the liquid overflow in the liquid inlet process can be avoided; simultaneously, when the pipeline assembly 200 is detached from the flow channel 11, the opening and closing structure 30 can be triggered correspondingly, so that the opening and closing structure 30 is in the second state and closes the passage between flow channel 11 and the accommodation cavity, effectively prevents the liquid overflow from the flow channel 11 when the liquid storage box 100 is extracted and cleaned, realizes the better liquid leakage prevention effect of liquid storage box 100, improves the practicability and structural reliability of liquid storage box 100.

[0056] Referring to Figures 2 to 4 In an embodiment of the utility model, the opening and closing structure 30 includes a first valve body 31 and a first valve core 33, the first valve body 31 is arranged in the accommodation cavity and covers the flow channel 11, a first valve cavity 311 is arranged in the first valve body 31, and the first valve body 31 is provided with a communication hole communicating the first valve cavity 311 with the accommodation cavity; the first valve core 33 is movably arranged in the first valve cavity 311, so as to make the flow channel 11 communicate with the first valve cavity 311 or block the passage of the flow channel 11 and the first valve cavity 311.

[0057] In the embodiment, the opening and closing structure 30 can include a first valve member and a first valve core 33. The first valve member can be a cover structure or a cylinder structure connected to the inner wall of the accommodating cavity. The first valve member can form a first valve cavity 311 with a certain flow space inside the first valve member. The first valve core 33 can be accommodated in the first valve cavity 311, and the opening and closing of the flow channel 11 can be controlled by the movement of the first valve core 33 in the first valve cavity 311, so as to realize the communication or blockage of the flow channel 11 and the first valve cavity 311. The first valve body 31 can be provided with a communication hole communicating the first valve cavity 311 and the accommodating cavity, so that the liquid entering the first valve cavity 311 through the flow channel 11 can flow into the accommodating cavity from the communication hole. At this time, the first valve core 33 can be moved away from the flow channel 11 to open the flow channel 11, and the communication hole is located between the first valve core 33 and the inner wall of the accommodating cavity, so that the liquid flow can stably flow from the flow channel 11 to the box body 10 through the communication hole; or, a certain gap can be provided between the periphery of the first valve core 33 and the inner wall of the first valve cavity 311, so that the liquid can stably flow to the communication hole through the gap between the first valve core 33 and the first valve cavity 311 in the first valve cavity 311, so that the liquid can stably flow into the box body 10 for storage, further improving the practicability and structural reliability of the liquid storage box 100. The box body 10 can be provided with a sealing gasket between the wall of the accommodating cavity and the first valve body 31, and a corresponding avoiding hole corresponding to the communication flow channel 11 can be provided on the sealing gasket. The sealing gasket can be used to further improve the connection sealing property of the first valve body 31 and the box body 10, and reduce the occurrence of liquid leakage.

[0058] The first valve body 31 can form a first valve cavity 311 extending along the axis of the flow channel 11, so that the first valve core 33 can be movably arranged in the first valve cavity 311 along the axis of the flow channel 11; or the first valve core 33 can be rotatably arranged in the first valve cavity 311, so that the first valve core 33 can open the flow channel 11 by rotating the flow channel 11 and opening the flow channel 11 on one side of the flow channel 11. The first valve core 33 can move in the first valve cavity 311 to open and close the flow channel 11 in many ways, and the present application does not limit the same, as long as the first valve core 33 can stably open and close the flow channel 11.

[0059] Referring to Figures 2 to 4 In one embodiment of the present application, the first valve core 33 is movably arranged along the axis of the flow channel 11, and the opening and closing structure 30 further includes a first elastic member 35. The two ends of the first elastic member 35 abut against the inner wall of the first valve cavity 311 and the end of the first valve core 33 away from the flow channel 11, respectively.

[0060] In the embodiment, the first valve core 33 can be a block structure arranged to move along the axial direction of the flow channel 11 on the inner wall of the first valve cavity 311. At this time, the first valve core 33 can be arranged to have an end face dimension larger than that of the flow channel 11, so that when the first valve core 33 moves towards the flow channel 11 and abuts against the inner wall of the first valve cavity 311, the flow channel 11 can be stably covered, the communication between the flow channel 11 and the first valve cavity 311 is blocked, and the opening and closing structure 30 can stably close the flow channel 11.

[0061] The first elastic member 35 can include but is not limited to a spring, a tension spring, a rubber member, etc. When the first valve core 33 moves away from the flow channel 11 under the action of an external force to open the flow channel 11, the first elastic member 35 can be elastically deformed under the action force of the first valve core 33. When the external force acting on the first valve core 33 is removed, the first elastic member 35 can drive the first valve core 33 to move towards the flow channel 11 by the elastic restoring force, so that the first valve core 33 can be reset to abut against the inner wall of the first valve cavity 311 to cover the flow channel 11, and the first valve core can be stably closed under the elastic force of the first elastic member 35 to prevent the liquid from leaking from the flow channel 11 of the liquid storage box 100, thereby improving the practicability and structural reliability of the liquid storage box 100.

[0062] The force driving the first valve core 33 to move away from the flow channel 11 in the first valve cavity 311 can be the force acting on the first valve core 33 when the pipeline assembly 200 is connected to the box body 10, or the force acting on the first valve core 33 when the traction rod device connected to the first valve core 33 acts on the first valve core 33. Of course, it can also be the liquid flow force acting on the first valve core 33 when the liquid flows through the flow channel 11. There are many ways to drive the first valve core 33 to move in the first valve cavity 311, as long as the elastic force of the first elastic member 35 can be overcome to push the first valve core 33, which is not limited in the present application.

[0063] Referring to Figure 3In an embodiment of the utility model, first valve core 33 includes sealed main body 333 and trigger valve stem 331, sealed main body 333 is movably arranged in first valve cavity 311 and has first position and second position, when sealed main body 333 is in first position, the end face of sealed main body 333 towards flow channel 11 is attached to the wall surface at flow channel 11 to cut off flow channel 11 and first valve cavity 311, when sealed main body 333 is in second position, the end face of sealed main body 333 towards flow channel 11 has gap between flow channel 11 to make flow channel 11 and first valve cavity 311 communicate, trigger valve stem 331 is connected to the one end of sealed main body 333 towards flow channel 11 and is arranged in flow channel 11, and trigger valve stem 331 has overflow gap between the inner wall of flow channel 11. Wherein, the end face of sealed main body 333 towards flow channel 11 is attached to the wall surface at flow channel 11 includes direct attachment (namely contact) and indirect attachment (namely two surfaces can also be provided with sealing pad and other parts).

[0064] In the embodiment, first valve core 33 can be arranged in first valve cavity 311, and the sealed main body 333 can be a block structure with a size larger than that of flow channel 11, so that the sealed main body 333 can stably cover the wall surface at flow channel 11, or have a certain gap with flow channel 11 to realize the control of the communication and blocking of flow channel 11 and first valve cavity 311. By connecting trigger valve stem 331 to the end of sealed main body 333 and arranging trigger valve stem 331 through flow channel 11, trigger valve stem 331 can be exposed on the side of box body 10 away from the inner cavity of box body 10, and then pipe assembly 200 can be arranged to abut against trigger valve stem 331 in the middle of the pipe end by arranging abutting blocks and other structures, so that pipe assembly 200 can push first valve core 33 to move in first valve cavity 311 to open flow channel 11 during the connection to flow channel 11, to realize the more convenient disassembly and connection of liquid storage box 100 and pipe assembly 200, and further improve the operation convenience and practicality of liquid storage box 100. In addition, the first valve stem can be arranged in the form of a rod structure with a size smaller than that of flow channel 11, or a groove avoiding the inner wall of flow channel 11 can be arranged on the circumference of the first valve stem to form an overflow gap, or a notch avoiding the first valve stem can be arranged on the inner wall of flow channel 11 to form an overflow gap, so that the first valve stem and the hole wall of flow channel 11 can have a certain overflow gap for liquid flow, and the liquid can stably flow into box body 10 through flow channel 11, to further improve the structural stability and reliability of liquid storage box 100.

[0065] Referring to Figure 3 In an embodiment of the utility model, trigger valve stem 331 includes first cylinder 3311 and first limiting rib 3313, first cylinder 3311 is connected to sealed main body 333 and arranged in flow channel 11, and first limiting rib 3313 is connected to the circumferential side of first cylinder 3311 and abuts against the inner wall of flow channel 11.

[0066] In the embodiment, the cross-sectional dimension of the first column body 3311 can be smaller than the size of the flow channel 11, and the first limiting rib 3313 is arranged on the outer periphery of the first column body 3311, so that the first limiting rib 3313 abuts against the inner wall of the flow channel 11, to stably form a flow gap between the inner wall of the flow channel 11 and the first column body 3311, to ensure the stable flow of the liquid, and the abutment of the first limiting rib 3313 and the inner wall of the flow channel 11 can also realize the smooth penetration of the trigger valve rod 331 at the flow channel 11, effectively prevent the trigger valve rod 331 from deviating, and ensure the stable and reliable opening and closing of the first valve core 33 to the flow channel 11. In addition, the first limiting rib 3313 arranged on the outer periphery of the first column body 3311 can also simplify the overall structure of the trigger valve rod 331, so that the first valve core 33 can be more conveniently produced and processed, the production cost of the liquid storage box 100 is reduced, and the practicability and reliability of the liquid storage box 100 are further improved.

[0067] Referring to Figure 3 In an embodiment of the utility model, the sealing body 333 includes a second column body 3331 and a second limiting rib 3333, one end of the second column body 3331 is connected with the first elastic member 35, the other end of the second column body 3331 is opposite to the flow channel 11, and the second limiting rib 3333 is connected to the circumferential side of the second column body 3331 and abuts against the inner wall of the first valve cavity 311.

[0068] In the embodiment, the cross-sectional dimension of the second column body 3331 can be smaller than the cross-sectional dimension of the first valve cavity 311, the second limiting rib 3333 is arranged on the outer periphery of the second column body 3331, and the second limiting rib 3333 abuts against the inner wall of the first valve cavity 311, so that the sealing body 333 can stably move along the circumferential direction of the flow channel 11 in the first valve cavity 311, to avoid the deviation of the sealing body 333, and the circumferential side of the second column body 3331 and the inner cavity of the first valve cavity 311 can have a certain gap, so that the liquid can stably flow through the sealing body 333, flow into the box body 10 through the communication hole of the first valve body 31, and ensure the stable storage of the liquid generated by the inkjet printing device 5000 in the liquid storage box 100, to further improve the structural stability and reliability of the liquid storage box 100. In addition, the second limiting rib 3333 arranged on the outer periphery of the second column body 3331 can also simplify the overall structure of the sealing body 333, so that the sealing body 333 can be more conveniently produced and processed, the production cost of the liquid storage box 100 is reduced, and the practicability and reliability of the liquid storage box 100 are further improved.

[0069] Referring to Figure 3In an embodiment of the utility model, the inner wall opposite to the flow channel 11 of the first valve cavity 311 is provided with a mounting boss 313, the sealing body 333 is arranged between the mounting boss 313 and the flow channel 11, one end of the first elastic member 35 is sleeved on the mounting boss 313, and the other end of the first elastic member 35 is sleeved on the sealing body 333.

[0070] In the embodiment, the mounting boss 313 is arranged on the inner wall opposite to the flow channel 11 of the first valve cavity 311, so that one end of the first elastic member 35 is sleeved on the mounting boss 313; at this time, the protruding structure corresponding to the other end of the first elastic member 35 is arranged on the end of the sealing body 333 away from the flow channel 11, so that the other end of the first elastic member 35 can be fixed on the end of the sealing body 333 away from the flow channel 11; as a result, the first elastic member 35 can be supported and fixed by the cooperation of the mounting boss 313 and the sealing body 333, and the first elastic member 35 can be elastically deformed along the circumference of the flow channel 11 more stably, so as to guarantee the elastic force of the first elastic member 35 on the first valve core 33 and further improve the structural stability and reliability of the liquid storage box 100.

[0071] Referring to Figure 5 In an embodiment of the utility model, the liquid storage box 100 further comprises a liquid level detection assembly 50, which is arranged on the box body 10 and is used for detecting the liquid level in the box body 10.

[0072] In the embodiment, the liquid level detection assembly 50 can be arranged on the box body 10 of the liquid storage box 100, and the liquid level detection assembly 50 can be used to detect the liquid level in the liquid storage box 100; when the liquid level in the box body 10 reaches a certain height, the liquid level detection assembly 50 is triggered to send a full liquid signal, reminding the user to remove the liquid storage box 100 for cleaning, or the pipeline assembly 200 can be controlled to stop discharging based on the full liquid signal, so as to better avoid the liquid in the liquid storage box 100 from overflowing, and further improve the structural stability and reliability of the liquid storage box 100. The liquid level detection assembly 50 can adopt an infrared detection device, so that when the liquid reaches a certain liquid level height, the infrared light is blocked to trigger the liquid level detection assembly 50; or the liquid level detection assembly 50 can adopt a liquid level meter arranged in the box body 10, so that when the liquid level rises to the position of the liquid level meter, the liquid level detection assembly 50 is triggered to respond. The liquid level detection assembly 50 has many structural forms, and the present application does not limit the same, as long as the liquid level detection assembly 50 can stably detect the liquid level in the box body 10.

[0073] Referring to Figure 5In an embodiment of the present application, the liquid level detection assembly 50 comprises a float 51 and a sensing element 53, the float 51 is connected to the wall of the accommodating cavity in a translational or oscillating manner, the sensing element 53 is arranged on the top surface of the box body 10, the float 51 can oscillate or translate with the change of the liquid level in the accommodating cavity, and the float 51 can trigger the sensing element 53 to respond when the liquid level in the accommodating cavity reaches a preset level.

[0074] In the embodiment, the float 51 can be connected to the wall of the accommodating cavity by a rocker arm, the float 51 can stably float on the liquid surface in the accommodating cavity, and can gradually oscillate upward in the box body 10 along with the rising of the liquid surface, at this time, the sensing element 53 is arranged on the top wall of the box body 10 corresponding to the position of the float 51, the float 51 can be triggered to synchronously rise and trigger the sensing element 53 to respond when the liquid level in the box body 10 rises to a certain height, so that the liquid level detection assembly 50 can send a full signal at this time. In addition, the float 51 can also be arranged on the wall of the accommodating cavity in a translational manner along the rising direction of the liquid surface, at this time, the float 51 can also move along with the rising and falling of the liquid surface in the box body 10, and the float 51 can be triggered to synchronously rise and trigger the sensing element 53 to respond when the liquid level in the box body 10 rises to a certain height, so that the liquid level detection assembly 50 can send a full signal at this time, and the stable and reliable operation of the liquid level detection assembly 50 is ensured. The structure of the float 51 that translates or oscillates in the box body 10 can make the liquid level detection assembly 50 have a more simple structure, effectively reduce the production cost of the liquid storage box 100, and further improve the practicability and structural reliability of the liquid storage box 100.

[0075] In the embodiment, the float 51 can be arranged with a magnet, an electromagnet or other magnetic elements that can generate a certain magnetic field, at this time, the sensing element 53 can be a Hall sensor, the float 51 can stably trigger the Hall sensor to respond when it oscillates upward to approach the sensing element 53; or the sensing element 53 can be a pressure-sensitive switch, so that the float 51 can abut and trigger the pressure-sensitive switch to respond when it oscillates upward to the position of the sensing element 53; or the sensing element 53 can be a photoelectric sensing element, so that the sensing element 53 can be shielded by the float 51 to sense the liquid level in the box body 10. There are many kinds of sensing modes of the sensing element 53 and the float 51, which are not limited in the present application.

[0076] Further, referring to Figure 5The inner wall of the box body 10 can be provided with a rotating seat 55, the float 51 can be provided with a connecting rocker arm 57, one end of the connecting rocker arm 57 is rotationally connected to the rotating seat 55, and the side, away from the inductive element 53, of the rotating seat 55 is provided with a limiting baffle 59. When the liquid level in the box body 10 is low, the float 51 can swing and fall to a position close to the bottom wall of the box body 10 through the connecting rocker arm 57, at this time, the limiting baffle 59 can abut against the connecting rocker arm 57, so that the float 51 is prevented from swinging to the side away from the inductive element 53, and then the float 51 can stably swing and rise towards the inductive element 53 with the rising of the liquid surface, the stable triggering response of the float 51 and the inductive element 53 is ensured, and the structural stability and reliability of the liquid storage box 100 are further improved.

[0077] Referring to Figure 5 In an embodiment of the present application, the liquid storage box 100 further comprises a position detection assembly 70, which is arranged on the outside of the box body 10 and is used for detecting the assembly position of the box body 10 in the inkjet printing device 5000.

[0078] In the embodiment, the liquid storage box 100 can be detachably arranged in the inkjet printing device 5000, so that the inkjet printing device 5000 can realize better integral design, reduce the external components of the inkjet printing device 5000, and further improve the practicability and structural reliability of the inkjet printing device 5000. At this time, a certain space can be arranged in the inkjet printing device 5000 to accommodate the liquid storage box 100, so as to guarantee the regular layout of the inkjet printing device 5000. By arranging the in-place detection assembly 70, the installation position of the liquid storage box 100 in the inkjet printing device 5000 can be monitored by the in-place detection assembly 70, which is beneficial to avoid the misplacement or misplacement of the liquid storage box 100 in the inkjet printing device 5000, guarantee the stable assembly of the liquid storage box 100 in the inkjet printing device 5000 and the stable connection with the pipeline assembly 200, better prevent the liquid leakage of the liquid storage box 100 in the inkjet printing device 5000, and improve the practicability and reliability of the liquid storage box 100. The in-place detection assembly 70 can be a contact switch arranged on the box body 10 of the liquid storage box 100. By arranging a protrusion corresponding to the contact switch in the inkjet printing device 5000, the protrusion can just abut against the contact switch when the liquid storage box 100 is installed in place, so that the in-place detection assembly 70 sends a signal to remind the in-place detection assembly 70. Alternatively, the in-place detection assembly 70 can include a magnet, an electromagnet or other magnetic element installed on the surface of the box body 10 of the liquid storage box 100, and a Hall sensor installed in the inkjet printing device 5000, so that the magnetic element and the Hall sensor are just opposite to each other when the liquid storage box 100 is installed in place. Alternatively, the in-place detection assembly 70 can be an infrared detection device on the liquid storage box 100, and a baffle is arranged in the inkjet printing device 5000, so that the baffle just blocks the infrared light from the emitting end to the receiving end when the liquid storage box 100 is installed in place, and the in-place detection assembly 70 is triggered. The in-place detection assembly 70 has many structure forms, and the application does not limit it, as long as it can realize the assembly in-place detection of the liquid storage box 100.

[0079] The utility model discloses still propose a kind of liquid box pipeline system 1000, the liquid box pipeline system 1000 including liquid storage box 100 and pipeline assembly 200, the specific structure of the liquid storage box 100 refers to above-mentioned embodiment, since the liquid box pipeline system 1000 of the present application adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical solutions of above-mentioned embodiments, here no longer tediously repeat.

[0080] The pipeline assembly 200 comprises a drain pipe 40 and a second joint 20. The second joint 20 is connected to one end of the drain pipe 40 and can open and close the pipe end of the drain pipe 40. The second joint 20 can be inserted into the flow channel 11 of the liquid storage box 100 and matched with the opening and closing structure 30, so that the opening and closing structure 30 is in the first state and the internal passage of the second joint is in the open state. When the second joint 20 is separated from the flow channel 11, the opening and closing structure 30 is in the second state, and the internal passage of the second joint 20 is in the closed state. By arranging the second joint 20, the second joint 20 can be correspondingly inserted on the first joint of the liquid storage box 100, so as to realize stable communication between the pipeline assembly 200 and the flow channel 11 of the liquid storage box 100. In this way, the liquid box pipeline system 1000 can be more conveniently disassembled and assembled, and the stable connection between the pipeline assembly 200 and the liquid storage box 100 is ensured. The liquid box pipeline system 1000 can be arranged outside the casing 300 of the inkjet printing device 5000, and one end of the drain pipe 40 is arranged to extend into the inkjet printing device 5000 to connect the drain end of the ink stack assembly 700, so that the second joint 20 of the pipeline assembly 200 is connected with the liquid storage box 100 outside the inkjet printing device 5000. Alternatively, the liquid box pipeline system 1000 can be arranged inside the casing 300 of the inkjet printing device 5000. At this time, the pipeline assembly 200 can be arranged on the inner wall of the casing 300, and the liquid storage box 100 can be detachably connected with the casing 300. Thus, the first joint 13 of the liquid storage box 100 can be correspondingly inserted or pulled out of the second joint 20 during the disassembly and assembly of the liquid storage box 100 in the casing 300, so as to realize more convenient disassembly and assembly of the liquid box pipeline system 1000 and ensure stable arrangement of the liquid box pipeline system 1000 on the inkjet printing device 5000.

[0081] Referring to Figure 4 and Figure 6 In an embodiment of the present application, the second joint 20 comprises a second valve body 21 and a second valve core 23. The second valve body 21 is connected to the end of the pipeline assembly 200, and a second valve cavity 211 and a liquid outlet hole 213 communicating with the second valve cavity 211 are arranged in the second valve body 21. The second valve core 23 is movably arranged in the second valve cavity 211 and can open or close the liquid outlet hole 213.

[0082] In the embodiment, the second valve body 21 can be provided in a cover structure or a barrel structure, so that a second valve cavity 211 with a certain volume can be formed inside the second valve body 21. At this time, the pipe segment of the pipeline assembly 200 can be connected to the second valve body 21, so that the liquid flowing from the ink stack assembly 700 can flow into the liquid storage box 100 through the second valve cavity 211 from the liquid outlet hole 213. At this time, by providing the second valve core 23 in the second valve cavity 211, the opening or closing of the liquid outlet hole can be controlled by the second valve core 23, so as to open or block the passage of the liquid outlet hole 11 and the liquid discharge pipeline 40. When the pipeline assembly 200 is connected to the liquid storage box 100, the second valve core 23 can be used to open the liquid outlet hole 213, so that the pipeline assembly 200 can stably flow the liquid through the liquid outlet hole 213 into the box body 10 of the liquid storage box 100 through the flow channel 11 of the liquid storage box 100. At the same time, when the pipeline assembly 200 is disconnected from the liquid storage box 100, the second valve core 23 can be used to close the liquid outlet hole 213, so as to effectively prevent the liquid remaining in the pipeline assembly 200 from leaking out through the second joint 20. Therefore, the liquid box pipeline system 1000 can achieve better liquid leakage prevention effect, and further improve the practicability and structural reliability of the liquid box pipeline system 1000.

[0083] In the embodiment, the second valve body 21 can be provided in a cover structure or a barrel structure, so that a second valve cavity 211 with a certain volume can be formed inside the second valve body 21. At this time, the pipe segment of the pipeline assembly 200 can be connected to the second valve body 21, so that the liquid flowing from the ink stack assembly 700 can flow into the liquid storage box 100 through the second valve cavity 211 from the liquid outlet hole 213. At this time, by providing the second valve core 23 in the second valve cavity 211, the opening or closing of the liquid outlet hole can be controlled by the second valve core 23, so as to open or block the passage of the liquid outlet hole 11 and the liquid discharge pipeline 40. When the pipeline assembly 200 is connected to the liquid storage box 100, the second valve core 23 can be used to open the liquid outlet hole 213, so that the pipeline assembly 200 can stably flow the liquid through the liquid outlet hole 213 into the box body 10 of the liquid storage box 100 through the flow channel 11 of the liquid storage box 100. At the same time, when the pipeline assembly 200 is disconnected from the liquid storage box 100, the second valve core 23 can be used to close the liquid outlet hole 213, so as to effectively prevent the liquid remaining in the pipeline assembly 200 from leaking out through the second joint 20. Therefore, the liquid box pipeline system 1000 can achieve better liquid leakage prevention effect, and further improve the practicability and structural reliability of the liquid box pipeline system 1000.

[0084] In addition, when the liquid storage box 100 controls the opening and closing of the flow channel 11 by using the opening and closing structure 30, the liquid box pipeline system 1000 can correspondingly match the opening and closing structure 30 on the liquid storage box 100 with the second joint 20 of the pipeline assembly 200, so that when the second joint 20 is mounted on the box body 10 of the liquid storage box 100, the first valve core 33 in the opening and closing structure 30 and the second valve core 23 in the second joint 20 can abut against each other, and the flow channel 11 and the liquid outlet hole 213 are opened at the same time, realizing stable liquid flow delivery from the pipeline assembly 200 to the liquid storage box 100; and when the second joint 20 and the box body 10 of the liquid storage box 100 are detached from each other, the abutment between the first valve core 33 and the second valve core 23 is released, at this time, the first valve core 33 can be reset to close the flow channel 11 under the action of the first elastic member 35 in the opening and closing structure 30, and the second valve core 23 can be reset to close the liquid outlet hole 213 at the same time under the action of the second elastic member of the second joint 20, effectively preventing liquid leakage when the liquid storage box 100 and the pipeline assembly 200 are detached from each other, effectively reducing liquid pollution in the inkjet printing device 5000, and further improving the practicability and structural reliability of the liquid box pipeline system 1000.

[0085] It can be understood that the second joint 20 can connect the second valve body 21 to the inner wall of the shell 300 of the inkjet printing device 5000, realize positioning and installation of the pipeline assembly 200 in the shell 300, and then the liquid storage box 100 can be correspondingly arranged in the shell 300 towards the second joint 20, so that the liquid storage box 100 can be matched and inserted with the second joint 20 when being installed in the shell 300, and can be detached from the second joint 20 when being detached from the shell 300, thereby better improving the convenience and practicability of the liquid storage box 100 in the inkjet printing device 5000.

[0086] Referring to Figure 4 and Figure 6 In an embodiment of the present application, the second valve core 23 is movably arranged along the axial direction of the liquid outlet hole 213, and the second joint 20 further comprises a second elastic member, which abuts against the inner wall of the second valve cavity 211 and the second valve core 23.

[0087] In the embodiment, the second valve core 23 can be a block structure movably arranged along the axial direction of the liquid outlet hole 213 on the inner wall of the second valve cavity 211, at this time, the end face of the second valve core 23 towards the liquid outlet hole 213 can be arranged to be larger than the size of the liquid outlet hole 213, so that when the second valve core 23 moves towards the liquid outlet hole 213 and abuts against the inner wall of the second valve cavity 211, the liquid outlet hole 213 can be stably covered, and the liquid outlet hole 213 of the second valve body 21 can be stably closed.

[0088] By arranging the second elastic member between the second valve core 23 and the inner wall of the second valve cavity 211, the second elastic member can include but is not limited to a spring, a tension spring, a rubber member, etc., so that when the second valve core 23 moves away from the liquid outlet hole 213 under the action of an external force to open the liquid outlet hole 213, the second elastic member is elastically deformed under the action force of the second valve core 23, and then when the external force acting on the second valve core 23 is removed, the elastic restoring force of the second elastic member can drive the second valve core 23 to move towards the liquid outlet hole 213, so that the second valve core 23 can be reset to abut against the inner wall of the second valve cavity 211 to close the liquid outlet hole 213, and the second valve core is stably closed under the elastic force of the second elastic member. The liquid outlet hole 213, better prevent the second joint 20 from leaking when the liquid outlet hole 213 is separated from the liquid storage box 100, further improve the practicability and structural reliability of the liquid box pipeline system 1000.

[0089] Wherein, the force driving the second valve core 23 to move away from the liquid outlet hole 213 in the second valve cavity 211 can be the first valve core 33 of the opening and closing structure 30 on the liquid storage box 100 acting on the second valve core 23, or the traction rod device connected to the second valve core 23 acting on the second valve core 23. There are many ways to drive the second valve core 23 to move in the second valve cavity 211, which can overcome the elastic force of the second elastic member to push the second valve core 23. The present application does not limit this.

[0090] Referring to Figure 4 and Figure 6 In an embodiment of the present application, the second joint 20 further comprises a sealing member 25 arranged on the outer periphery of the second valve body 21.

[0091] In the embodiment, the second joint 20 can be provided with a sealing member 25 on the outer periphery of the second valve member, which can be used in cooperation with the first joint 13 of the liquid storage box 100 to abut and seal, effectively preventing liquid from overflowing from the connection gap between the second joint 20 and the first joint 13, achieving better liquid leakage prevention effect of the liquid box pipeline system 1000, and further improving the practicability and structural reliability of the liquid box pipeline system 1000.

[0092] The utility model also proposes a kind of inkjet printing device 5000, the inkjet printing device 5000 includes liquid box pipeline system 1000, and the specific structure of the liquid box pipeline system 1000 refers to above-mentioned embodiment, since the inkjet printing device 5000 has adopted all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical solutions of above-mentioned embodiment, and here is not repeated.

[0093] Wherein, as Figure 7As shown, the inkjet printer can further include a machine housing 300, a printing platform 400, a print head 500, a moving device 600 and an ink stack assembly 700, the printing platform 400, the print head 500, the moving device 600 and the ink stack assembly 700 are arranged in the machine housing 300, the print head 500 is arranged above the printing platform 400 to perform printing operation on the printing material placed on the printing platform 400, the moving device 600 is connected to the print head 500 and drives the print head 500 to move. The ink stack assembly 700 can be arranged on the moving path of the print head 500, so that the print head 500 can move to the upper side of the ink stack assembly 700 to stop or trim, at this time, the ink stack assembly can clean the ink ejection outlet of the print head 500 to prevent the ink ejection outlet from being blocked by the solidified ink, and the ink stack assembly 700 can be connected to the ink storage box 100 through the pipeline assembly 200, so that the liquid generated by the ink stack assembly 700 can be stably transported to the ink storage box 100 through the pipeline assembly 200 for storage.

[0094] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields within the technical concept of the present application and the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A liquid storage cartridge for use in an inkjet printing apparatus, characterized by comprising: The cartridge comprises: a cartridge body provided with a receiving cavity and a first connector having a flow channel communicated with the receiving cavity, the first connector being used for plugging a pipeline assembly of an inkjet printing device; an opening and closing structure provided in the first connector, the opening and closing structure comprising a matching part capable of matching with the pipeline assembly, so that the opening and closing structure has a first state of matching with the pipeline assembly and a second state of separating from the pipeline assembly, the opening and closing structure being used for opening a passage between the flow channel and the receiving cavity in the first state and closing the passage between the flow channel and the receiving cavity in the second state.

2. The cartridge of claim 1, wherein The opening and closing structure comprises: a first valve body provided in the receiving cavity and covering the flow channel, the first valve body being provided with a first valve cavity, and the first valve body being provided with a communication hole communicated between the first valve cavity and the receiving cavity; a first valve core movably provided in the first valve cavity, so that the flow channel is communicated with or blocked from the first valve cavity.

3. The cartridge of claim 2, wherein The first valve core is movably arranged along an axial direction of the flow channel, and the opening and closing structure further comprises a first elastic member, two ends of the first elastic member being respectively abutted against an inner wall of the first valve cavity and the first valve core.

4. The cartridge of claim 3, wherein The first valve core comprises: a sealing main body movably provided in the first valve cavity and having a first position and a second position, when the sealing main body is in the first position, an end face of the sealing main body facing the flow channel is fitted to a wall surface at the flow channel, so as to block the flow channel from the first valve cavity, when the sealing main body is in the second position, the end face of the sealing main body facing the flow channel has a gap with the flow channel, so as to communicate the flow channel with the first valve cavity; a trigger valve rod connected to one end of the sealing main body facing the flow channel and penetrating the flow channel, the trigger valve rod having a flow gap with an inner wall of the flow channel.

5. The cartridge of claim 4, wherein The trigger valve rod comprises a first column and a first limiting rib, the first column is connected to the sealing main body and penetrates the flow channel, and the first limiting rib is connected to a peripheral side of the first column and abuts against the inner wall of the flow channel; and / or, the sealing main body comprises a second column and a second limiting rib, one end of the second column is connected to the first elastic member, the other end of the second column is opposite to the flow channel, the second limiting rib is connected to a peripheral side of the second column and abuts against an inner wall of the first valve cavity; and / or, an inner wall of the first valve cavity opposite to the flow channel is provided with a mounting boss, the sealing main body is arranged between the mounting boss and the flow channel, one end of the first elastic member is sleeved on the mounting boss, and the other end of the first elastic member is sleeved on the sealing main body.

6. The cartridge of any one of claims 1 to 5, wherein, The liquid storage cartridge further comprises a liquid level detection assembly provided in the cartridge body and used for detecting a liquid level in the cartridge body.

7. The cartridge of claim 6, wherein The liquid level detecting assembly comprises a float and a sensing element, the float is connected to the wall of the accommodating cavity in a translational or oscillating manner, the sensing element is arranged on the top surface of the cartridge body, the float is capable of oscillating or translating with the change of the liquid level in the accommodating cavity, and the float is capable of triggering the sensing element when the liquid level in the accommodating cavity reaches a preset level.

8. The cartridge of any one of claims 1 to 5, wherein, The liquid cartridge further comprises a position detecting assembly arranged on the outside of the cartridge body, which is capable of cooperating with an element in the inkjet printing device to trigger and detect the assembly position of the cartridge body in the inkjet printing device.

9. A cartridge plumbing system, characterized by, The liquid cartridge pipeline system comprises: The liquid cartridge according to any one of claims 1 to 8, and The pipeline assembly comprises a second connector, which is inserted into the flow channel of the liquid cartridge and cooperates with the opening and closing structure, so that the opening and closing structure is in the first state and the internal passage of the second connector is in an open state, and when the second connector is separated from the flow channel, the opening and closing structure is in the second state and the internal passage of the second connector is in a closed state.

10. The cartridge plumbing system of claim 9, wherein, The pipeline assembly further comprises a liquid discharge pipeline, and the second connector comprises: A second valve body connected to the end of the liquid discharge pipeline, a second valve cavity and a liquid outlet hole communicating with the second valve cavity are arranged in the second valve body; A second valve core movably arranged in the second valve cavity to open or close the liquid outlet hole.

11. The cartridge plumbing system of claim 10, wherein, The second valve core is movably arranged along the axial direction of the liquid outlet hole, and the second connector further comprises a second elastic member abutting between the inner wall of the second valve cavity and the second valve core; And / or, the second connector further comprises a sealing member arranged on the outer periphery of the second valve body.

12. An inkjet printing apparatus characterized by comprising: The inkjet printing device comprises the liquid cartridge pipeline system according to any one of claims 9 to 11.

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