Liquid storage box, ink box assembly and ink-jet printing device

Abstract

The utility model discloses a liquid storage box, an ink box assembly and an ink-jet printing device, and relates to the technical field of printing equipment, the liquid storage box comprises a box body, a trigger buoy and an induction piece, and the box body is provided with an accommodating cavity; the trigger buoy is movably arranged in the box body and positioned in the accommodating cavity, and can move along with the change of the liquid level of the liquid in the accommodating cavity; the induction piece is arranged on the box body and used for inducting the trigger buoy so as to detect the liquid amount state in the containing cavity. According to the technical scheme, simple and convenient liquid level detection of the liquid storage box is achieved, and practicability and reliability of the liquid storage box are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a liquid storage box, an ink cartridge assembly and an inkjet printing device. Background Art

[0002] In related technologies, an inkjet printing device can usually use a liquid storage box to store the ink required by the inkjet printing device, the waste liquid generated, and the required clean water or cleaning liquid and other liquids, and use pipes to connect the liquid storage box and other components to realize the supply and transportation of liquid or the discharge of waste liquid, etc., to ensure the stable inkjet printing operation of the inkjet printing device and the stable cleaning of the printing components.

[0003] However, most current inkjet printers require manual inspection of the liquid level in the liquid reservoir, or by directly observing the external liquid reservoir. This method of detecting the liquid level in the liquid reservoir has large errors and is inconvenient to operate, reducing the practicality of the inkjet printer. Utility Model Content

[0004] The main purpose of the utility model is to provide a liquid storage box, an ink cartridge assembly and an inkjet printing device, aiming to realize simple liquid level detection of the liquid storage box and improve the practicality and reliability of the liquid storage box.

[0005] To achieve the above-mentioned purpose, the liquid storage box proposed in the present invention includes a box body, a trigger float and a sensing component, wherein the box body has a receiving cavity; the trigger float can be movably arranged on the box body and located in the receiving cavity, and can move with the change of the liquid level in the receiving cavity; the sensing component is arranged on the box body, for sensing the trigger float to detect the liquid quantity status in the receiving cavity.

[0006] In one embodiment, the trigger float includes a pendulum rod and a float, one end of the pendulum rod is rotatably connected to the box body, and the float is connected to the other end of the pendulum rod; or, a guide rail is provided in the box body, and the trigger float can be slidably installed on the guide rail and can contact the liquid.

[0007] In one embodiment, there are two sensing members, namely a first sensing member and a second sensing member, the first sensing member is arranged near the top of the box body, and the second sensing member is arranged near the bottom of the box body; and / or, the trigger float includes a third magnetic member, and the sensing member is a Hall sensor.

[0008] In one embodiment, the liquid storage box further comprises a cover plate, the top of the box body is provided with a filling hole communicating with the inner cavity thereof, and the cover plate is detachably or movably mounted on the top of the box body to open or cover the filling hole.

[0009] In one embodiment, the box body or the cover plate is further provided with a ventilation groove, which connects the receiving cavity with the outside of the liquid storage box to balance the air pressure in the receiving cavity; and / or, a rotating shaft is provided on one side of the cover plate, and the rotating shaft is rotatably connected to the box body so that the cover plate can be flipped to open and close the filling hole; and / or, the box body is provided with a first magnetic part or made of magnetic material, and the cover plate is provided with a second magnetic part or made of magnetic material, and the box body and the cover plate are magnetically matched.

[0010] The present utility model also proposes an ink cartridge assembly, comprising a plurality of liquid storage boxes as described above, wherein the plurality of liquid storage boxes are arranged adjacent to each other, the first liquid storage box of the two adjacent liquid storage boxes is provided with a first connecting structure, and the second liquid storage box is provided with a second connecting structure, and the first connecting structure cooperates with the second connecting structure to connect the two adjacent liquid storage boxes.

[0011] In one embodiment, the first connecting structure includes a card slot, which is provided on the side wall of the first liquid storage box, and the second connecting structure includes a limiting protrusion, which is provided on the side wall of the first liquid storage box and is locked in the card slot.

[0012] In one embodiment, the ink cartridge assembly includes one first liquid storage box and two second liquid storage boxes, the first liquid storage box is provided with two first connecting structures, and the two first connecting structures are respectively limited in one-to-one correspondence with the second connecting structures of the two second liquid storage boxes.

[0013] In one embodiment, an ink outlet interface is provided at the bottom of the box body of the multiple liquid storage boxes; the ink outlet interfaces of at least two of the first liquid storage boxes and the ink outlet interface of the second liquid storage box are staggered along a direction perpendicular to the arrangement direction of the multiple liquid storage boxes.

[0014] The present invention also provides an inkjet printing device, which includes any of the above-mentioned liquid storage boxes or any of the above-mentioned ink cartridge assemblies.

[0015] The technical solution of the present invention is to set a trigger float in the receiving chamber of the box body, so that the trigger float can be used to follow the rise and fall of the liquid level in the receiving chamber, and a sensor is set at a position on the box body corresponding to a certain liquid level height. The sensor and the trigger float can cooperate with each other to trigger the response, so that when the trigger float moves with the liquid level in the receiving chamber, the sensor can be used to detect the liquid level height at which the trigger float is at this time, so as to feedback the liquid volume status in the receiving chamber, which is conducive to timely feedback on whether the liquid storage box is in a low liquid level situation or a high liquid level situation, so that the inkjet printing device can replenish the liquid in time when the liquid level in the liquid storage box is low, or stop replenishing or discharging the liquid in time when the liquid level is high. By using the coordinated detection of the trigger float and the sensor, the liquid volume in the liquid storage box can be detected more accurately and conveniently, effectively improving the operating convenience and practicality of the liquid storage box, and ensuring the stable operation of the inkjet printing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of an ink cartridge assembly provided by the present utility model;

[0018] Figure 2 for Figure 1 An exploded view of an embodiment of an ink cartridge assembly;

[0019] Figure 3 for Figure 1 An exploded structural view of another embodiment of an ink cartridge assembly;

[0020] Figure 4 for Figure 1 An exploded view of another embodiment of an ink cartridge assembly;

[0021] Figure 5 for Figure 1 A cross-sectional view of an embodiment of two adjacent ink cartridges of an ink cartridge assembly;

[0022] Figure 6 for Figure 1 A partial enlarged view of an embodiment of an ink cartridge assembly when disassembling an ink cartridge;

[0023] Figure 7 for Figure 1 A schematic diagram of the bottom structure of an embodiment of an ink cartridge assembly;

[0024] Figure 8 A cross-sectional view of an embodiment of a liquid storage box provided by the present utility model;

[0025] Figure 9 for Figure 8 A partial enlarged view of point A in the middle;

[0026] Figure 10 A cross-sectional view of another embodiment of the liquid storage box provided by the present utility model;

[0027] Figure 11 This is a structural diagram of an embodiment of a liquid storage box provided by the present utility model;

[0028] Figure 12 This is a structural schematic diagram of an embodiment of the inkjet printing device provided by the present invention.

[0029] Description of Figure Numbers:

[0030] 100, ink cartridge assembly; 10, bracket; 30, liquid reservoir; 30a, first liquid reservoir; 30b, second liquid reservoir; 30c, third liquid reservoir; 31, cartridge body; 311, first connecting structure; 3111, slot; 3113, snap-fitting slot; 313, second connecting structure; 3131, limiting protrusion; 3133, snap-fitting flange; 315, filling port; 3151, venting slot; 33, cover; 331, sealing plunger ; 35. Limit baffle; 371. Guide rail; 37. Ink outlet interface; 51. Trigger float; 511. Third magnetic part; 513. Rocker arm; 5131. Base; 5133. Connecting rocker arm; 5135. Limit block; 515. Float; 53. Sensing component; 70. Ink supply tube; 71. Avoidance pipe section; 200. Casing; 300. Printing table; 400. Print head; 500. Moving device; 1000. Inkjet printing device.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention 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 status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] In the related art, inkjet printing devices may include but are not limited to DTF inkjet printing devices ("Direct to Film", direct printing to film printing devices), DTG inkjet printing devices ("Direct to Garment", direct printing to textile printing devices), etc. Inkjet printing devices can usually use a liquid storage box to store the ink required by the inkjet printing device, the waste liquid generated, and the required clean water or cleaning liquid and other liquids, and use pipes to connect the liquid storage box and other components to achieve liquid supply and transportation or waste liquid discharge, etc., to ensure the stable inkjet printing operation of the inkjet printing device and the stable cleaning of the printing components. However, most of the current inkjet printing devices manually extract the liquid storage box to check the liquid level in the box body, or directly observe the external liquid storage box to understand the liquid level in the box body. This method of detecting the liquid level of the liquid storage box has a large error and is inconvenient to operate, which reduces the practicality of the inkjet printing device. In response to the above problems, the present invention proposes a liquid storage box 30.

[0036] It can be understood that the liquid storage box 30 is used in the inkjet printing device 1000 and can be used as an ink cartridge, clean water cartridge, cleaning liquid cartridge or waste ink cartridge of the inkjet printing device 1000. It can be used to store ink, clean water, cleaning liquid or waste ink generated in the ink stack assembly of the inkjet printing device 1000, etc., to ensure a stable ink supply to the inkjet printing device 1000, to achieve stable cleaning of the printing assembly of the inkjet printing device 1000 and waste liquid discharge and collection, so that the inkjet printing device 1000 can perform printing operations more stably.

[0037] See Figures 1 to 11 In one embodiment of the present invention, the liquid storage box 30 includes a box body 31, a trigger float 51 and a sensor 53. The box body 31 has a receiving cavity; the trigger float 51 is movably provided in the box body 31 and is located in the receiving cavity, and can move with the change of the liquid level in the receiving cavity; the sensor 53 is provided in the box body 31, and is used to sense the trigger float 51 to detect the liquid level status in the receiving cavity.

[0038] In the present application, the sensing element 53 can be set on the outside of the box body 31, for example, it can be set on the bracket 10 that carries the liquid storage box 30 or the inkjet printing device 1000, and correspondingly set on the side wall of the box body 31, so that the sensing element 53 can be set corresponding to the moving path of the trigger float 51, and the trigger float 51 can be set in the receiving chamber, and the trigger float 51 can move with the change of the liquid level in the receiving chamber. Then, when the amount of liquid in the box body 31 is large, the trigger float 51 can be located at the top position of the receiving chamber. At this time, the position of the trigger float 51 is detected by the sensing element 53 to identify that the amount of liquid in the box body 31 is sufficient. Then, when the liquid storage box 30 is used to store ink or clean water, it can be reminded to stop adding liquid at this time to prevent the liquid in the receiving chamber from being too full and overflowing from the box body 31; or when the liquid storage box 30 is used to store waste liquid generated by the inkjet printing device, it can be reminded that the liquid storage box 30 needs to be extracted and cleaned at this time to prevent the waste liquid in the liquid storage box 30 from overflowing and causing pollution, thereby achieving a more stable and reliable liquid reminder for the liquid storage box 30. When the trigger float 51 drops to a position close to the bottom wall of the receiving chamber as the liquid level in the receiving chamber drops, the sensor 53 is used to detect the position of the trigger float 51, so that the sensor 53 can send a signal that the amount of liquid in the box body 31 is small. When the liquid storage box 30 is used to store ink or clean water, it can remind the box body 31 to be filled with ink, clean water or cleaning liquid to ensure the stable operation of the inkjet printing device, thereby further improving the practicality and reliability of the liquid storage box 30.

[0039] The technical solution of the present invention is to provide a trigger float 51 within the receiving chamber of the cartridge body 31 so that the trigger float 51 can follow the rise and fall of the liquid level within the receiving chamber. Furthermore, a sensor 53 is provided on the cartridge body 31 so that the sensor 53 and the trigger float 51 can cooperate in a trigger response. As the trigger float 51 moves within the receiving chamber with the liquid level, the sensor 53 can detect the liquid level at which the trigger float 51 is located, thereby providing feedback on the liquid level within the receiving chamber. This facilitates timely feedback on whether the liquid storage cartridge 30 is at a low liquid level or a high liquid level, allowing the inkjet printing device 1000 to replenish liquid in a timely manner when the liquid level within the liquid storage cartridge 30 is low, or to stop replenishing or draining liquid in a timely manner when the liquid level is high. The coordinated detection of the trigger float 51 and the sensor 53 allows for more accurate and convenient detection of the liquid level within the liquid storage cartridge 30, effectively improving the ease and practicality of operation of the liquid storage cartridge 30 and ensuring stable operation within the inkjet printing device 1000.

[0040] See Figure 10 In one embodiment of the present invention, the trigger float 51 includes a pendulum rod 513 and a float 515 , one end of the pendulum rod 513 is rotatably connected to the box body 31 , and the float 515 is connected to the other end of the pendulum rod 513 .

[0041] In this embodiment, a rocker arm 513 is connected to the housing 31, and a float 515 is connected to the other end of the rocker arm 513. This allows the float 515 to stably float on the liquid surface within the receiving chamber. As the liquid level rises, the float 515 gradually swings upward within the receiving chamber about the connecting axis between the rocker arm 513 and the housing 31. At this time, the sensor 53 can be used to detect the swinging and rising position of the float 515 within the receiving chamber. When the liquid level within the housing 31 rises to a certain height, the float 515 can synchronously trigger the sensor 53 to respond, thereby generating a liquid full signal. By using a structure in which the trigger float 515 swings within the housing 31, a simpler structural configuration of the liquid storage box 30 can be achieved, effectively reducing the production cost of the liquid storage box 30 and further improving the practicality and structural reliability of the liquid storage box 30.

[0042] The float 515 may be internally provided with a third magnetic member 511 such as a magnet or electromagnet that can generate a certain magnetic field. In this case, the sensing member 53 may be a Hall sensor. When the float 515 swings and rises to approach the sensing member 53, the third magnetic member 511 can be stably used to trigger the Hall sensor response. Alternatively, the sensing member 53 may be a pressure-sensitive switch, so that when the float 515 swings and rises to the position where the sensing member 53 is located, it can abut against the sensing member 53 to trigger a pressure-sensitive switch response. Alternatively, the sensing member 53 may be a photoelectric sensing element, so that the sensing member 53 can be blocked by the float 515 and thus sense the liquid level in the box body 31. There are many other ways for the sensing member 53 and the float 515 to cooperate in sensing, which are not limited in this application.

[0043] Furthermore, the rocker arm 513 may include a base 5131 and a connecting rocker arm 5133. The base 5131 is connected to the top wall of the receiving chamber. One end of the connecting rocker arm 5133 is rotatably connected to the base 5131, and the other end of the connecting rocker arm 5133 is connected to the float 515. A stopper 5135 is provided on the side of the base 5131 facing away from the float 515. When the liquid level in the box body 31 is low, the float 515 can swing along with the connecting rocker arm 5133 and fall to a position close to the bottom wall of the box body 31. At this time, the stopper 5135 can abut against the connecting rocker arm 5133 to prevent the float 515 from swinging away from the sensing element 53. As a result, the float 515 can stably swing upward toward the sensing element 53 as the liquid level rises, ensuring a stable trigger response between the float 515 and the sensing element 53, further improving the structural stability and reliability of the liquid storage box 30. The seat body 5131 can be integrally formed with the top cavity wall of the receiving cavity or can be a separate structure assembled on the top cavity wall.

[0044] See Figure 8 and Figure 9 In one embodiment of the present invention, the inner side wall of the box body 31 is connected to the limit baffle 35, and the limit baffle 35 and the inner side wall of the receiving cavity are combined to form a guide rail 371, and the trigger float 51 can be raised and lowered on the guide rail 371.

[0045] In this embodiment, a limiting baffle 35 is provided on the inner sidewall of the receiving chamber. The limiting baffle 35 can extend from the inner top wall to the inner bottom wall of the receiving chamber. The limiting baffle 35 and the inner sidewall of the receiving chamber can be combined to form a guide rail 371 extending in the vertical direction. The guide rail 371 is connected to the inner cavity of the cartridge body 31 so as to keep the liquid level in the cartridge body 31 consistent with the liquid level in the guide rail 371. Furthermore, the trigger float 51 can be installed in the guide rail 371, and the inner wall of the cartridge body 31 and the limiting baffle 35 can be used to limit the trigger float 51 so that the trigger float 51 can stably move up and down along the guide rail 371 within the cartridge body. This helps prevent the trigger float 51 from deflecting, ensures stable sensing detection between the trigger float 51 and the sensing element 53, and realizes stable and reliable detection of the ink level in the cartridge body 31, further improving the overall structural stability and reliability of the liquid storage cartridge 30.

[0046] In other embodiments, the guide rail 371 may also be directly formed on the inner wall of the box body 31 , or may be a sliding groove formed on the inner wall of the box body 31 .

[0047] Furthermore, the trigger float 51 includes a third magnetic member 511, and the sensing member 53 is a Hall sensor. A structure such as a magnet or electromagnet that can emit a certain magnetic field can be set in the trigger float 51. In this case, the sensing member 53 can be a Hall sensor, so that when the trigger float 51 drops to a certain liquid level, the sensing member 53 can be triggered to send a corresponding control signal, thereby ensuring stable detection of the ink inside the cartridge 31. In addition, the sensing member 53 can also use an infrared detection device, so that when the trigger float 51 drops to a certain position, the infrared light emitted by the sensing member 53 is blocked, thereby causing the sensing member 53 to send a corresponding sensing signal. Of course, the liquid level detection component 50 can also use other detection mechanism settings, which is not limited in this application. It is sufficient to be able to achieve stable detection of the ink level in the cartridge 31.

[0048] Furthermore, the sensing element 53 includes a first sensing element and a second sensing element. The first sensing element is disposed adjacent to the top of the box body 31 , and the second sensing element is disposed adjacent to the bottom of the box body 33 .

[0049] In this embodiment, the sensor 53 can utilize the design of the first sensor and the second sensor to realize the high liquid level detection and low liquid level detection of the trigger float 51 in the box body 31. Furthermore, when the trigger float 51 rises with the liquid level in the box body 31 to a position close to the top wall of the box body 31, the trigger float 51 can be triggered in response to the first sensor, so that the first sensor can send a liquid full signal in the box body 31 at this time, reminding to stop adding liquid or reminding that the liquid level in the liquid storage box 30 is high; and when the liquid level in the box body 31 drops and drives the trigger float 51 to move downward in the box body 31, the trigger float 51 can be triggered in response to the second sensor when it drops to a position close to the bottom wall of the box body 31, so that the second sensor can send a liquid low signal in the box body 31 at this time, so as to remind to add liquid. Therefore, the coordinated action of the sensing element 53 and the trigger float 51 can be better utilized to achieve stable detection of the liquid amount in the box body 31, realize better automated detection and control of the liquid storage box 30, and further improve the practicality and structural reliability of the liquid storage box 30.

[0050] See Figure 11 In one embodiment of the present invention, the liquid storage box 30 further includes a cover plate 33, and the top surface of the box body 31 is provided with a filling hole 315 connected to its inner cavity; the cover plate 33 is detachably or movably mounted on the top of the box body to open or cover the filling hole 315.

[0051] In this embodiment, a filling hole 315 communicating with the inner cavity of the box body 31 can be provided on the top surface of the box body 31, through which liquid can be injected into the box body 31. In this case, a cover plate 33 can be provided to open or close the filling hole 315. This allows the cover plate 33 to cover the filling hole 315 during transportation or use of the liquid storage box 30 to prevent liquid from splashing. Furthermore, when liquid needs to be added, the cover plate 33 can be opened to ensure stable liquid filling of the box body 31, further improving the practicality and structural reliability of the liquid storage box 30.

[0052] Among them, the cover plate 33 can be connected to the box body 31 by using a hinge joint or a rotating shaft, and the filling hole 315 can be opened or closed by rotating the cover plate 33; or, a slide rail slider assembly can be set between the cover plate 33 and the box body 31, so that the cover plate 33 can slide on the box body 31 to open or close the filling hole 315; or, the cover plate 33 and the box body 31 can be set in a separate structure, and the filling hole 315 can be covered by placing the cover plate 33 on the box body 31, and the filling hole 315 can be opened by removing the cover plate 33 from the box body 31. There are many ways to connect the cover plate 33 to the box body 31, and this application does not limit this.

[0053] See Figure 11In one embodiment of the present invention, a rotating shaft is provided on one side of the cover plate 33 , and the rotating shaft is rotatably connected to the box body 31 , so that the cover plate 33 can be flipped to open and close the filling hole 315 .

[0054] In this embodiment, the cover plate 33 can be connected to the box body 31 via a rotating shaft, so that the cover plate 33 can be flipped and connected to the surface of the box body 31. In this case, the cover plate 33 can be rotated about the central axis of the rotating shaft, so that the cover plate 33 rotates toward the filling hole 315 to cover the filling hole 315, or rotates away from the filling hole 315 to open the filling hole 315, thereby achieving stable opening and closing of the filling hole 315 by the cover plate 33. Furthermore, the flip connection of the cover plate 33 to the box body 31 makes the opening and closing operation of the cover plate 33 on the box body 31 more convenient, facilitates the filling of liquid in the liquid storage box 30, and further improves the practicality and ease of operation of the liquid storage box 30.

[0055] In some embodiments of the present invention, the box body 31 and the cover plate 33 are magnetically coupled.

[0056] In some embodiments, the box body 31 is provided with a first magnetic member, and the cover 33 is provided with a second magnetic member. The first magnetic member and the second magnetic member can be arranged to cooperate with each other by magnetic attraction.

[0057] In this embodiment, the first magnetic member can be a magnet, in which case the second magnetic member can be a magnet with opposite magnetic properties to the first magnetic member or a magnetically attractable metal; alternatively, the first magnetic member can be a magnetically attractable metal, in which case the second magnetic member can be a magnet. Furthermore, by disposing the first magnetic member on the box body 31 at a position corresponding to the placement of the cover plate 33, and disposing the second magnetic member on the side of the cover plate 33 facing the box body 31, the first and second magnetic members can be magnetically connected to ensure the fixed assembly of the cover plate 33 and the box body 31, and can achieve convenient assembly and disassembly of the cover plate 33 and the box body 31, further improving the operational convenience and practicality of the liquid storage box 30. Furthermore, the cover plate 33 can be entirely made of a magnetic material to facilitate adjustment of the arrangement of the first magnetic member on the box body 31, further improving the practicality of the liquid storage box 30.

[0058] In some other embodiments, the box body 31 is made of a magnetic material, and the cover plate 33 is made of a magnetic material. Alternatively, one of the box body 31 and the cover plate 33 is made of a magnetic material, and the other of the box body 31 and the cover plate 33 is provided with a magnetic member.

[0059] See Figure 11In one embodiment of the present invention, a sealing plunger 331 is provided on the side of the cover plate 33 facing the box body 31. The sealing plunger 331 can be inserted into the filling hole 315 and abut against the inner wall of the filling hole 315. The inner wall of the filling hole 315 is recessed with a ventilation groove 3151, and the ventilation groove 3151 passes through the inner wall of the box body 31 and the surface of the box body 31.

[0060] In this embodiment, the cover plate 33 can be inserted into the filling hole 315 using a sealing plunger 331. The sealing plunger 331 abuts against the inner wall of the filling hole 315 to achieve a better sealing effect of the cover plate 33 on the filling hole 315, thereby further improving the leakage prevention effect of the liquid storage box 30. Specifically, the cover plate 33 can use a colloid structure such as silicone or rubber for the sealing plunger 331, or a sealing rubber ring or other structure can be sleeved around the outer periphery of the sealing plunger 331, which is conducive to further improving the sealing effect between the sealing plunger 331 and the inner wall of the filling hole 315. At this time, by providing a ventilation groove 3151 on the inner wall of the filling hole 315 that passes through the inner wall of the box body 31 and the top surface of the box body 31, the ventilation groove 3151 can be used to maintain the connection between the inner cavity of the box body 31 and the external environment when the sealing plunger 331 covers the filling hole 315, so that the air pressure in the box body 31 can be consistent with the atmospheric pressure, ensuring the stable supply of liquid in the box body 31, avoiding the formation of a negative pressure environment in the box body 31, and preventing a certain probability of affecting the liquid supply of the liquid storage box 30 in the inkjet printing device 1000, thereby further improving the practicality and structural reliability of the liquid storage box 30.

[0061] Furthermore, the vent groove 3151 may be provided not only on the wall of the filling hole 315 but also as a hole structure provided on the box body 31 and located to one side of the filling hole 315, or as a hole structure provided on the cover plate 33, or as a channel structure between the box body 31 and the cover plate 33. Any configuration is acceptable as long as the vent groove 3151 can be used to connect the receiving chamber with the external environment of the liquid storage box 30, thereby allowing the liquid in the receiving chamber to be stably supplied to the components of the inkjet printing device 1000 and ensuring stable operation of the inkjet printing device 1000. This application does not limit the manner and location of the vent groove 3151 on the box body 31 or the cover plate 33.

[0062] The present invention further provides an ink cartridge assembly 100, which includes a plurality of liquid storage cartridges 30. The specific structure of the liquid storage cartridges 30 is similar to that of the aforementioned embodiments. Since the present ink cartridge assembly 100 utilizes all of the technical solutions of all of the aforementioned embodiments, it at least possesses all of the beneficial effects brought about by the technical solutions of the aforementioned embodiments, and therefore, no further description is given here. The term "plurality" may include two, three, four, five, six, or more.

[0063] It is understood that inkjet printing devices typically utilize an ink cartridge assembly to supply ink to a printhead. The ink cartridge assembly may include multiple liquid reservoirs, which can serve as ink cartridges for the inkjet printing device. Multiple liquid reservoirs can be used to store inks of multiple colors, enabling the printing device to achieve multi-color printing and ensuring stable output of printed materials with corresponding images or text. However, the multiple liquid reservoirs of the ink cartridge assembly are similar in shape, and most are directly aligned and placed on the printing device. This can easily lead to misalignment of the liquid reservoirs during assembly, resulting in a poor connection between the liquid reservoirs and the corresponding ink supply tubes. This can cause printing errors in the printing device and waste of ink and printing material.

[0064] See also Figures 1 to 9 In one embodiment of the present invention, the ink cartridge assembly 100 includes a first liquid storage box 30a and a second liquid storage box 30b arranged adjacent to each other. The first liquid storage box 30a is provided with a first connecting structure 311, and the second liquid storage box 30b is provided with a second connecting structure 313. The first connecting structure 311 cooperates with the second connecting structure 313 to limit the position.

[0065] In the present application, the ink cartridge assembly 100 may include at least two liquid storage cartridges 30. A slot structure for accommodating the at least two liquid storage cartridges 30 may be formed on the inkjet printing device 1000, and the body of the inkjet printing device 1000 may be provided with an opening communicating with the slot structure for the liquid storage cartridges 30 to be installed and removed. This allows the at least two liquid storage cartridges 30 to be removed and placed in a direction toward or away from the body opening, thereby achieving installation and removal of the liquid storage cartridges 30 from the inkjet printing device 1000. Alternatively, a bracket 10 may be used to support the at least two liquid storage cartridges 30. The liquid storage cartridges 30 may be sequentially placed and mounted on the bracket 10, and the bracket 10 may then be connected to the housing of the inkjet printing device 1000. This allows the at least two liquid storage cartridges 30 to be installed and removed in a direction toward or away from the bracket 10, thereby achieving stable assembly of the ink cartridge assembly 1000 from the inkjet printing device 1000.

[0066] Among them, the ink cartridge assembly 100 may include a first liquid storage box 30a and a second liquid storage box 30b. The first liquid storage box 30a and the second liquid storage box 30b can be removed from the inkjet printing device 1000 in one direction, which is convenient for disassembly, filling ink and maintenance of the ink cartridge assembly 100. At this time, by providing a first connecting structure 311 on the first liquid storage box 30a and a second connecting structure 313 on the second liquid storage box 30b, when the first liquid storage box 30a and the second liquid storage box 30b are assembled adjacent to each other, the first connecting structure 311 and the second connecting structure 313 can be used to limit the installation of the first liquid storage box 30a on the second liquid storage box 30b. Further, when the first liquid storage box 30a is not removed, the second liquid storage box 30b can be limited by the first liquid storage box 30a and cannot be removed well, so that the first liquid storage box 30a and the second liquid storage box 30b can be removed in sequence in a certain order. At the same time, under the coordinated assembly of the first connecting structure 311 and the second connecting structure 313, the first liquid storage box 30a and the second liquid storage box 30b need to avoid each other to a certain extent during installation, so that the assembly of the ink cartridge assembly 100 in the inkjet printing device 1000 needs to place the first liquid storage box 30a and the second liquid storage box 30b in a certain order according to the coordination of the connecting structures, so that the various ink cartridges of the ink cartridge assembly 100 can be positioned and installed in a certain order in the inkjet printing device 1000.

[0067] Therefore, under the cooperation and limiting action of the first connecting structure 311 on the second connecting structure 313, the ink cartridge assembly 100 can make the first liquid storage box 30a and the second liquid storage box 30b be disassembled and assembled in a certain order, and the first liquid storage box 30a and the second liquid storage box 30b can be cooperated and limited in sequence when installed, so as to better realize the sequential positioning and installation of each liquid storage box 30 of the ink cartridge assembly 100 on the inkjet printing device 1000, effectively avoid the installation dislocation of the liquid storage box 30, and avoid the wrong extraction of the liquid storage box 30, prevent the pipeline of the inkjet printing device 1000 from being misconnected with the liquid storage box 30, ensure the accurate printing of the inkjet printing device 1000, and improve the practicality and reliability of the ink cartridge assembly 100.

[0068] It should be noted that the first connecting structure 311 can be a groove provided on the side wall of the first liquid storage box 30a, and the second connecting structure 313 can be a protrusion provided on the side wall of the second liquid storage box 30b, and the second liquid storage box 30b is limited by the engagement of the groove and the protrusion; or, the first connecting structure 311 can be a protruding pressure plate or buckle on the first liquid storage box 30a, and the second connecting structure 313 can be a corresponding pressing platform on the second liquid storage box 30b, and the pressing plate or buckle is used to abut against the pressing platform. Alternatively, the first connecting structure 311 may be a hook or other structure, in which case the second connecting structure 313 may be a groove on the second liquid storage box 30b that cooperates with the hook to be hung, and the hook is used to hook the groove to achieve the limitation of the second liquid storage box 30b. There are many structural forms of the first connecting structure 311 and the second connecting structure 313, and this application does not limit this, as long as it can achieve stable limitation of the first liquid storage box 30a on the second liquid storage box 30b in the direction of taking and placing.

[0069] Furthermore, when the bracket 10 is used to support the ink cartridge assembly 100, the bracket 10 and the ink cartridge assembly 100 can be combined to form the ink supply system of the inkjet printing device 1000. Alternatively, the bracket 10 can be part of the body of the inkjet printing device 1000. The bracket 10 can abut the bottom surface of the supporting liquid reservoir 30, or can also abut the side surface of the supporting liquid reservoir 30 connected to the bottom surface, to ensure the stable installation of the ink cartridge assembly 100 on the bracket 10. This application does not limit the structural shape and material of the bracket 10, as long as it can achieve the supporting and load-bearing function of the liquid reservoir 30. A groove structure that matches the size of the liquid reservoir 30 can be formed on the bracket 10 to accommodate and secure the liquid reservoir 30. Alternatively, the bracket 10 and the liquid reservoir 30 can be connected and fixed using a fastening structure such as bolts or screws to ensure the stable installation of the ink cartridge assembly 100 on the bracket 10. This application does not limit the connection method between the bracket 10 and the ink cartridge assembly 100.

[0070] The technical solution of the present invention provides a first connecting structure 311 on the first liquid storage box 30a and a second connecting structure 313 on the second liquid storage box 30b. When the ink cartridge assembly 100 is assembled and disassembled on the inkjet printing device 1000, the first connecting structure 311 is used to limit the second connecting structure 313, so that the first liquid storage box 30a and the second liquid storage box 30b can have a certain mutual avoidance condition in the taking and placing direction, so that the first liquid storage box 30a and the second liquid storage box 30b can be assembled and disassembled in a certain order, effectively avoiding the disassembly and assembly dislocation of the liquid storage box 30, so that each liquid storage box 30 can be connected to the corresponding ink supply tube, realizing stable ink supply of the ink cartridge assembly 100 on the inkjet printing device 1000, ensuring accurate printing of the inkjet printing device 1000, and effectively improving the practicality and structural reliability of the ink cartridge assembly 100.

[0071] See Figures 2 to 4 In one embodiment of the present invention, the first connecting structure 311 is provided on the side of the first liquid storage box 30a facing the second liquid storage box 30b, and the second connecting structure 313 is provided on the side of the second liquid storage box 30b facing the first liquid storage box 30a, and the first connecting structure 311 cooperates with the second connecting structure 313 to be crimped.

[0072] In this embodiment, the first connecting structure 311 can be provided on the side wall of the first liquid reservoir 30a facing the second liquid reservoir 30b. By correspondingly providing a second connecting structure 313 on the side wall of the second liquid reservoir 30b facing the first liquid reservoir 30a, the second connecting structure 313 can be used to press-fit with the first connecting structure 311, thereby achieving a more flexible locking mechanism between the first liquid reservoir 30a and the second liquid reservoir 30b, thereby achieving a more stable and reliable positional restraint between the first liquid reservoir 30a and the second liquid reservoir 30b, and further improving the overall structural stability and reliability of the ink cartridge assembly 100. The first connecting structure 311 and the second connecting structure 313 can be a mutually engaging protrusion and groove structure; or, alternatively, a mutually engaging mortise and tenon structure. The present application does not limit the structure of the first connecting structure 311 and the second connecting structure 313, as long as they can achieve stable press-fit and positional restraint between the two.

[0073] See Figure 2 、 Figure 5 and Figure 6 In one embodiment of the present invention, the first connecting structure 311 includes a card slot 3111, which is provided on the side wall of the first liquid storage box 30a, and the second connecting structure 313 includes a limiting protrusion 3131, which is provided on the side wall of the second liquid storage box 30b, and the limiting protrusion 3131 is locked in the card slot 3111.

[0074] In this embodiment, the first connecting structure 311 can be a card slot 3111 recessed on the side wall of the first liquid storage box 30a, and the second connecting structure 313 can be a limiting protrusion 3131 protruding on the side wall of the second liquid storage box 30b. Then, the first liquid storage box 30a and the second liquid storage box 30b can be moved closer to each other to make the limiting protrusion 3131 inserted into the card slot 3111, and the outer wall of the limiting protrusion 3131 and the inner wall of the card slot 3111 can be abutted against each other to realize the limiting locking of the first liquid storage box 30a to the second liquid storage box 30b on the bracket 10. Among them, the limiting protrusion 3131 can be correspondingly inserted and snapped into the card slot 3111 during the process of the first liquid storage box 30a and the second liquid storage box 30b moving toward each other in the horizontal direction, or the second liquid storage box 30b can be placed on the bracket 10 first, and the limiting protrusion 3131 can be correspondingly inserted and snapped into the card slot 3111 during the process of the first liquid storage box 30a moving toward the bracket 10. Of course, the matching installation of the limiting protrusion 3131 and the card slot 3111 can also be achieved by mutual lateral movement or mutual oblique movement. The present application does not limit the matching and disassembly method between the liquid storage boxes 30, and it is sufficient to achieve the matching and snap-fitting limitation of the limiting protrusion 3131 and the card slot 3111.

[0075] See Figure 2 、 Figure 5 and Figure 6 In one embodiment of the present invention, the card slot 3111 passes through the bottom surface of the first liquid storage box 30a, and the two opposite inner side walls of the card slot 3111 are respectively provided with a card slot 3113, and the opposite sides of the limiting protrusion 3131 are respectively provided with a card flange 3133, and the card flange 3133 is correspondingly inserted into the card slot 3113.

[0076] In this embodiment, the slot 3111 can be provided through the bottom surface of the first liquid reservoir 30a, so that the limiting protrusion 3131 can pass through the bottom surface of the first liquid reservoir 30a into the slot 3111 and engage with the slot 3111. Therefore, the bottom surface of the liquid reservoir 30 can be the surface that contacts the bracket 10. In this case, when the bottom surface of the first liquid reservoir 30a is placed on the bracket 10, the limiting protrusion 3131 on the side of the second liquid reservoir 30b can pass through the insertion opening of the bottom surface of the first liquid reservoir 30a and engage with the slot 3111. Moreover, when the first liquid reservoir 30a is removed from the bracket 10, the limiting protrusion 3131 can be directly separated from the slot 3111 by passing through the installation opening. This makes the installation and removal of the ink cartridge assembly on the bracket 10 more convenient, further improving the convenience and practicality of the ink cartridge assembly 100.

[0077] When the locking cam 3133 is in the closed position, the locking cam 3133 can be locked in the closed position when the locking cam 3133 is in the closed position.

[0078] See Figure 3 In one embodiment of the present invention, the ink cartridge assembly 100 further includes a third liquid storage box 30c, which is disposed on a side of the second liquid storage box 30b facing away from the first liquid storage box 30a. A first connecting structure 311 is provided on a side of the second liquid storage box 30b facing the third liquid storage box 30c, and a second connecting structure 313 is provided on the third liquid storage box 30c. The first connecting structure 311 of the second liquid storage box 30b cooperates with the second connecting structure 313 to limit the third liquid storage box 30c.

[0079] In this embodiment, the ink cartridge assembly 100 may further include a third liquid storage box 30c, so that at least the first liquid storage box 30a, the second liquid storage box 30b and the third liquid storage box 30c can be arranged in sequence along a certain direction. By making the third liquid storage box 30c correspondingly arranged on the side of the second liquid storage box 30b facing away from the first liquid storage box 30a, and making the second liquid storage box 30b facing the side of the third liquid storage box 30c provided with a first connecting structure 311, the third liquid storage box 30c can be provided with a second connecting structure 313 on the side facing the second liquid storage box 30b, and the second connecting structure 313 is used to cooperate with the first connecting structure 311 to limit the position, so that the second liquid storage box 30b can limit the third liquid storage box 30c. , so that the ink cartridge assembly 100 can cooperate with the limit assembly in sequence, so that the third liquid storage box 30c, the second liquid storage box 30b and the first liquid storage box 30a can be installed in sequence on the bracket 10 or the inkjet printing device 1000, and the first liquid storage box 30a, the second liquid storage box 30b and the third liquid storage box 30c can be removed in sequence, so that at least three liquid storage boxes 30 can be better disassembled and assembled in sequence in a certain order, which is conducive to better avoiding the disassembly and assembly dislocation of multiple liquid storage boxes 30, better preventing the liquid storage box 30 from being misconnected with the ink supply pipeline, ensuring the stable ink supply of the ink cartridge assembly 100 to the inkjet printing device 1000, and further improving the structural stability and reliability of the ink cartridge assembly 100.

[0080] See Figure 4 In one embodiment of the present invention, the ink cartridge assembly 100 includes a first liquid storage box 30a and two second liquid storage boxes 30b. The first liquid storage box 30a is provided with two first connecting structures 311. The two first connecting structures 311 are respectively limited in a one-to-one correspondence with the second connecting structures 313 of the two second liquid storage boxes 30b.

[0081] In this embodiment, the ink cartridge assembly 100 can have the first liquid storage box 30a disposed between the two second liquid storage boxes 30b, so that the ink cartridge assembly can be arranged in sequence on the bracket 10 or on the inkjet printing device 1000. At this time, the first liquid storage box 30a can be provided with a first connecting structure 311 on both sides facing the two second liquid storage boxes 30b, so that when the first liquid storage box 30a is installed, the two first connecting structures 311 can be used to limit the second connecting structures 313 of the two second liquid storage boxes 30b. Therefore, the ink cartridge assembly 100 can first install the two second liquid storage boxes 30b on the bracket 10, and then install the first liquid storage box 30a between the two second liquid storage boxes 30b to limit the two second liquid storage boxes 30b; at the same time, after the first liquid storage box 30a is removed, the limitation on the two second liquid storage boxes 30b can be released, and then the two second liquid storage boxes 30b can be removed respectively, so that the ink cartridge assembly 100 can be better disassembled and assembled in a certain order, better avoid the disassembly and dislocation of multiple ink cartridges, and ensure the stable ink supply of the ink cartridge assembly 100 to the inkjet printing device 1000.

[0082] In addition, see Figure 2In some embodiments, when a third liquid storage box 30c is provided on the side of the second liquid storage box 30b facing away from the first liquid storage box 30a, the third liquid storage box 30c can be provided on only one side of the second liquid storage box 30b, and a first connecting structure 311 can be provided on the side of the second liquid storage box 30b facing the third liquid storage box 30c, and the first connecting structure 311 of the second liquid storage box 30b can be used to limit and lock the third liquid storage box 30c; or, the third liquid storage box 30c can be provided on one side of both second liquid storage boxes 30b, and a first connecting structure 311 can be provided on the side of the two second liquid storage boxes 30b facing the third liquid storage box 30c, so that the two second liquid storage boxes 30b can limit the third liquid storage box 30c respectively by using the first connecting structure 311. In this way, the ink cartridge assembly 100 can first install the two third liquid reservoirs 30c, and then install the two second liquid reservoirs 30b, respectively, so that the two second liquid reservoirs 30b respectively use the first connecting structure 311 to limit and lock the two third liquid reservoirs 30c. Then, the first liquid reservoir 30a can be installed between the two second liquid reservoirs 30b, and the two first connecting structures 311 of the first liquid reservoir 30a can be used to limit and lock the two second liquid reservoirs 30b. At the same time, the ink cartridge assembly 100 can first remove the first liquid reservoir 30a, release the first liquid reservoir 30a's limit on the two second liquid reservoirs 30b, and then remove the two second liquid reservoirs 30b in sequence, respectively release the second liquid reservoirs 30b's limit on the third liquid reservoir 30c, and then remove the two third liquid reservoirs 30c in sequence. This can better achieve the sequential installation and disassembly of multiple ink cartridges, so that the ink cartridge assembly 100 can be better installed and disassembled in a certain order, further avoiding the disassembly and disassembly of the ink cartridge assembly.

[0083] See Figure 7 In one embodiment of the present invention, an ink outlet port 37 is provided at the bottom of the body 31 of the liquid storage box 30, and an ink supply tube 70 is coupled to the ink outlet port 37. The ink outlet ports 37 of at least two first liquid storage boxes 30a and the ink outlet port 37 of the second liquid storage box 30b are staggered in a direction perpendicular to the arrangement direction of the multiple liquid storage boxes 30.

[0084] In this embodiment, the bottom of the cartridge body 31 may be provided with an ink outlet port 37 that communicates with the interior of the cartridge body 31. An ink supply tube 70 may be connected to the ink outlet port 37 and connected to the printing assembly within the inkjet printing device 1000. This ensures that ink within the ink cartridge assembly 100 is stably supplied to the printing assembly of the inkjet printing device 1000 through the ink supply tube, thereby ensuring stable operation of the inkjet printing device 1000. In this case, the first and second liquid reservoirs 30a, 30b may be arranged in sequence along the length of the bracket 10, facilitating sequential assembly and disassembly of multiple ink cartridges and preventing misalignment of the ink cartridge assembly 100.

[0085] The ink cartridge assembly 100 can stagger the ink outlet interfaces 37 at the bottom of the first liquid storage box 30a and the second liquid storage box 30b, so that the multiple ink supply tubes 70 connected to the ink cartridge assembly 100 can be arranged side by side at the bottom of the box body 31, reducing the stacking and occupied space of the ink supply tubes 70, better ensuring the stable connection of the ink supply tubes 70 with the first liquid storage box 30a and the second liquid storage box 30b respectively, and further improving the practicality and structural reliability of the ink cartridge assembly 100.

[0086] Alternatively, the ink cartridge assembly 100 can arrange the ink outlet interfaces 37 at the bottom of the first liquid storage box 30a and the second liquid storage box 30b at intervals. In this case, the ink supply tube 70 can have a bent avoidance pipe 71 arranged at the bottom of the box body 31 to connect to the ink outlet interface 37, so that the multiple ink supply tubes 70 connected to the ink cartridge assembly 100 can utilize the setting of the bent avoidance pipe section 71 to better maintain a side-by-side arrangement, thereby achieving a better arrangement of the ink supply tubes 70 at the bottom of the box body 31, reducing the stacking and occupied space of the ink supply tubes 70, and better ensuring the stable connection of the ink supply tubes 70 with the first liquid storage box 30a and the second liquid storage box 30b respectively, further improving the practicality and structural reliability of the ink cartridge assembly 100.

[0087] Regardless of whether the ink outlet interfaces 37 of the multiple ink cartridges of the ink cartridge assembly 100 are arranged in a staggered manner or in an intermittent arrangement, the ink supply tube 70 can reserve a certain tube section at the bottom of the cartridge body 31 according to the assembly order of the first liquid storage cartridge 30a and the second liquid storage cartridge 30b, so that each ink cartridge of the ink cartridge assembly 100 can be taken out with a certain length of tube section, thereby preventing the ink supply tube 70 from being directly pulled out when the ink cartridge is taken out, which may cause leakage, thereby further improving the practicality and structural reliability of the ink cartridge assembly 100.

[0088] The present invention also proposes an inkjet printing device 1000, which includes a liquid storage box 30 or an ink cartridge assembly 100. The specific structure of the liquid storage box 30 or the ink cartridge assembly 100 refers to the above embodiment. Since the inkjet printing device 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0089] Among them, reference Figure 12The inkjet printing device 1000 may also include a housing 200, a printing platform 300, a print head 400, and a movable device 500. The printing platform 300, the print head 400, and the movable device 500 are arranged in the housing 200. The print head 400 is above the printing platform 300 and is used to print the printing material placed on the printing platform 300. The movable device 500 is connected to the print head 400 and drives the print head 400 to move. The ink cartridge assembly 100 can be connected to the print head 400 through a pipeline to supply ink to the print head 400, so that the print head 400 executes a certain operating procedure to spray the ink on the printing material to form the desired image or text. The ink cartridge assembly 100 can be installed inside the housing 200 to achieve a better overall assembly of the inkjet printing device 100. Of course, the ink cartridge assembly 100 can also be hung on the outside of the housing to facilitate user disassembly and use. In addition, the inkjet printing device 1000 can also set a liquid storage box 30 in the casing 200 as a clean water box or a waste liquid box, etc., to realize the multiple applications of the liquid storage box 30 in the inkjet printing device 1000. At this time, the liquid storage box 30 can store a certain amount of clean water or cleaning liquid to supply clean water to the ink stack component, so that the ink stack component can better clean the print head 400, or the liquid storage box 30 can be used to store the sewage generated by the cleaning of the ink stack component to ensure that the inkjet printing device 1000 operates more stably.

[0090] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A liquid storage box, characterized in that: For use in an inkjet printing device, comprising: A box body, wherein the box body has a receiving cavity; a trigger float, the trigger float being movably disposed on the box body and located in the receiving chamber, and being capable of moving with changes in the liquid level of the liquid in the receiving chamber; The sensing component is arranged on the box body and is used to sense the trigger float to detect the liquid level status in the receiving chamber.

2. The liquid storage box according to claim 1, characterized in that The trigger float comprises a swing rod and a float, one end of the swing rod is rotatably connected to the box body, and the float is connected to the other end of the swing rod; or, A guide rail is provided in the box body, and the trigger float can be slidably installed on the guide rail and can be in contact with the liquid.

3. The liquid storage box according to claim 1, characterized in that: There are two induction members, namely a first induction member and a second induction member, wherein the first induction member is arranged near the top of the box body, and the second induction member is arranged near the bottom of the box body; And / or, the trigger float includes a third magnetic component, and the sensing component is a Hall sensor.

4. The liquid storage box according to any one of claims 1 to 3, characterized in that: The liquid storage box further comprises a cover plate. The top of the box body is provided with a filling hole communicating with the inner cavity thereof. The cover plate is detachably or movably mounted on the top of the box body to open or cover the filling hole.

5. The liquid storage box according to claim 4, characterized in that: The box body or the cover plate is further provided with a ventilation groove, which communicates with the receiving cavity and the outside of the liquid storage box to balance the air pressure in the receiving cavity; And / or, a rotating shaft is provided on one side of the cover plate, and the rotating shaft is rotatably connected to the box body, so that the cover plate can be flipped to open and close the filling hole; And / or, the box body is provided with a first magnetic member or is made of a magnetic material, the cover plate is provided with a second magnetic member or is made of a magnetic material, and the box body and the cover plate are arranged in a magnetically coupled manner.

6. An ink cartridge assembly, characterized in that: It comprises a plurality of liquid storage boxes according to any one of claims 1 to 5, wherein the plurality of liquid storage boxes are arranged adjacent to each other, the first liquid storage box of the two adjacent liquid storage boxes is provided with a first connecting structure, and the second liquid storage box is provided with a second connecting structure, and the first connecting structure cooperates with the second connecting structure to connect the two adjacent liquid storage boxes.

7. The ink cartridge assembly according to claim 6, wherein: The first connecting structure includes a slot provided on the side wall of the first liquid storage box. The second connecting structure includes a limiting protrusion provided on the side wall of the first liquid storage box. The limiting protrusion is locked in the slot.

8. The ink cartridge assembly according to claim 6, wherein: The ink cartridge assembly includes one first liquid storage box and two second liquid storage boxes. The first liquid storage box is provided with two first connecting structures. The two first connecting structures are respectively limited in a one-to-one correspondence with the second connecting structures of the two second liquid storage boxes.

9. The ink cartridge assembly according to claim 7, wherein: The bottom of the box body of the plurality of liquid storage boxes is provided with an ink outlet interface; The ink outlet interfaces of at least two of the first liquid storage boxes and the ink outlet interface of the second liquid storage box are staggered along a direction perpendicular to the arrangement direction of the plurality of liquid storage boxes.

10. An inkjet printing device, characterized in that: The inkjet printing device comprises the liquid storage box according to any one of claims 1 to 5, or the ink cartridge assembly according to any one of claims 6 to 9.

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