Fluid box capable of accurately observing liquid level

Abstract

The utility model relates to the technical field of printer consumables, in particular to a fluid box accurate in liquid level observation, which comprises a box body, a liquid outlet structure, a liquid storage structure, a pressure adjusting structure and a liquid level observation structure. The liquid outlet structure is used for outputting ink in the liquid storage structure into a spray head of the printer, the pressure adjusting structure is communicated with the liquid storage structure and used for adjusting the internal pressure of the liquid storage structure, and the liquid level observation structure is arranged on the box body and used for observing the position of the ink in the box body. The problem that an existing fluid box is inaccurate in ink quantity detection in a printer is effectively solved. The liquid level observation block inserted into the box body, the bearing block and the light source groove formed in the bearing block are adopted, so that a line light source on the outer side can better irradiate the interior of the box body, and when light beams irradiated into the box body by the line light source are not refracted any more, the liquid level of ink can be accurately judged.

Description

Technical Field

[0001] The utility model relates to the technical field of printer consumables, in particular to a fluid box with accurate liquid level observation. Background Art

[0002] Inkjet printers are nowadays a relatively common printing device. In order to print exercises or teaching materials for their children, some parents generally use inkjet printers to print the corresponding content. The inkjet printer uses corresponding fluid cartridges to provide the printer with corresponding colors.

[0003] The more mainstream fluid cartridges on the market are generally divided into a liquid outlet part, a liquid storage part, and an air intake part. The liquid outlet part is used to output the liquid stored in the liquid storage part of the fluid cartridge to the printer's nozzle, and the air intake part is used to balance the pressure of the liquid storage part. When the liquid outlet part outputs the liquid in the liquid storage part to the print nozzle, the air intake part takes effect simultaneously, allowing the liquid to flow better into the print nozzle.

[0004] The existing air intake part has a certain bottleneck in air intake due to the volume limitation of the fluid box. When the printing volume is large, the bottleneck of the air intake part will cause the ink intake amount of the printing ink to be reduced, thereby reducing the printing quality.

[0005] After the existing fluid cartridge is inserted into the printer, the printer will use internal procedures to detect the amount of ink in the fluid cartridge. However, when this detection method and detection structure detect that there is no ink in the fluid cartridge, the remaining amount of ink in the fluid cartridge can still support dozens of prints. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a fluid cartridge with accurate liquid level observation, which effectively solves the problem of inaccurate ink level detection of the existing fluid cartridge in the printer.

[0007] The technical solution provided by the present utility model is a fluid cartridge with accurate liquid level observation, comprising a cartridge body, a liquid outlet structure, a liquid storage structure, a pressure regulating structure, and a liquid level observation structure. The liquid storage structure is disposed within the cartridge body for storing printer ink, the liquid outlet structure is disposed on the cartridge body for outputting ink in the liquid storage structure to a nozzle of the printer, the pressure regulating structure is communicated with the liquid storage structure for regulating the internal pressure of the liquid storage structure, and the liquid level observation structure is disposed on the cartridge body for observing the position of ink within the cartridge body.

[0008] The pressure regulating structure is arranged in the box body and is connected to the liquid storage structure through the pressure regulating hole. The liquid level observation structure includes a liquid level observation block and a supporting block. The liquid level observation block is installed on the supporting block. The liquid level observation block is inserted into the box body and is located in the pressure regulating structure and the liquid storage structure. The end of the supporting block away from the liquid level observation block is connected to the outside world. The supporting block and the liquid level observation block are both made of transparent material.

[0009] Preferably, a placement groove communicating with the pressure regulating structure and the liquid storage structure is provided on the box body, and the supporting block is located in the placement groove and fixedly connected to the placement groove via a sealing ring.

[0010] Preferably, one end of the liquid level observation block inserted into the box body is convex toward the inside of the box body, and the supporting block is provided with a light source groove recessed toward the inside of the box body, and the bottom wall of the light source groove is polygonal.

[0011] Preferably, the pressure regulating structure includes a pressure regulating chamber and pressure regulating cotton. The pressure regulating chamber is arranged on one side of the liquid storage structure and corresponds one-to-one to the liquid storage structure. The pressure regulating cotton is arranged inside the pressure regulating chamber and can block the pressure regulating hole. The pressure regulating hole is located in the middle position of the side of the pressure regulating cotton.

[0012] Preferably, the liquid storage structure is a plurality of liquid storage cavities, the pressure regulating cavities correspond to the liquid storage cavities one by one, two adjacent liquid storage cavities are connected through a liquid hole, and the pressure regulating hole is connected to the liquid hole.

[0013] Preferably, the placement groove is connected to one of the pressure regulating holes.

[0014] The beneficial effects of the utility model are:

[0015] The utility model adopts a pressure regulating chamber arranged on one side of the liquid storage chamber to share the pressure in the liquid storage chamber. At the same time, the arrangement of the pressure regulating cotton can make the liquid in the pressure regulating chamber slowly pass through the pressure regulating hole, thereby protecting the side wall of the box body;

[0016] The utility model adopts a liquid level observation block and a supporting block inserted into the box body, and a light source slot opened on the supporting block, so that the external linear light source can better illuminate the interior of the box body. When the liquid level in the box body drops to the lowest position, the light beam irradiated by the linear light source into the box body will no longer be refracted, so the liquid in the box body can be directly observed through the linear light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cutaway right side structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the utility model in a cutaway right view;

[0020] Figure 4 This is a schematic diagram of the structure of the utility model from above with the cover removed;

[0021] Figure 5 This is a schematic diagram of the structure of the utility model when viewed from above;

[0022] In the figure, 1-box body; 2-liquid outlet structure; 3-liquid storage structure; 4-pressure regulating structure; 5-liquid level observation structure; 41-pressure regulating hole; 51-liquid level observation block; 52-carrying block; 6-placement slot; 53-sealing ring; 54-light source slot; 42-pressure regulating chamber; 43-pressure regulating cotton; 31-liquid storage chamber; 32-liquid through hole; 11-shell; 12-cover; 21-liquid outlet; 22-air inlet. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Refer to the instruction manual Figure 1-5 A fluid box with accurate liquid level observation includes a box body 1, a liquid outlet structure 2, a liquid storage structure 3, a pressure regulating structure 4 and a liquid level observation structure 5, wherein the box body 1 is divided into a shell body 11 and a cover body 12, and a closed space with only the liquid outlet structure 2 as an opening is formed between the shell body 11 and the cover body 12. The liquid outlet structure 2 includes a liquid outlet hole 21 for liquid outflow and an air inlet hole 22 for air entry. A single passage is formed under the action of the air inlet hole 22, the liquid storage structure 3 and the liquid outlet hole 21. When the printer nozzle is inserted into the liquid outlet hole 21, the liquid in the liquid storage structure 3 can only flow to the liquid outlet hole 21 under the action of external pressure.

[0025] The liquid outlet structure 2 is arranged on the box body 1 and is used to output the ink in the liquid storage structure 3 to the nozzle of the printer. The liquid storage structure 3 is used to store the ink for the printer. The pressure regulating structure 4 is connected to the liquid storage structure 3 and is used to buffer the pressure in the liquid storage structure 3. When the pressure difference in the liquid storage structure 3 is large, the pressure regulating structure 4 disperses and buffers the pressure in the liquid storage structure 3 to avoid damage to the box body 1 caused by excessive pressure difference and untimely air intake of the air inlet hole 22.

[0026] The pressure regulating structure 4 includes a pressure regulating chamber 42 provided on one side of the liquid storage structure 3. A pressure regulating hole 41 close to the liquid outlet structure 2 is provided on the side wall shared by the pressure regulating chamber 42 and the liquid outlet structure 2. The liquid in the liquid storage structure 3 can enter the pressure regulating chamber 42 through the pressure regulating hole 41.

[0027] The pressure regulating structure 4 also includes a pressure regulating cotton 43 arranged inside the pressure regulating chamber 42. The pressure regulating cotton 43 is located at the pressure regulating hole 41 and the pressure regulating hole 41 is located in the middle position of the side of the pressure regulating cotton 43. When the negative pressure in the liquid storage structure 3 becomes larger, the pressure is transmitted to the pressure regulating cotton 43 through the pressure regulating hole 41, which will cause the pressure regulating cotton 43 to shrink and be adsorbed to the pressure regulating hole 41. When the gas entering from the air inlet 22 makes the atmospheric pressure inside the liquid storage structure 3 balanced with the outside world, the pressure regulating cotton 43 is no longer subjected to force and returns to its initial state, thereby reducing damage to the box body 1 when the pressure difference inside the liquid storage structure 3 changes greatly.

[0028] The liquid storage structure 3 uses multiple liquid storage chambers 31. Two adjacent liquid storage chambers 31 are connected through liquid holes 32. The number of pressure regulating chambers 42 corresponds to the number of liquid storage chambers 31. At the same time, each pressure regulating chamber 42 can be connected to the liquid storage chamber 31 through the pressure regulating hole 41, or each pressure regulating chamber 42 can be connected through the liquid hole 32, and one of the pressure regulating chambers 42 is connected to the corresponding liquid storage chamber 31 through the pressure regulating hole 41.

[0029] In order to better perform injection molding of the internal structure of the box body 1, each pressure regulating cavity 42 is often connected to the liquid storage cavity 31 through the pressure regulating hole 41. At the same time, for better communication, the pressure regulating hole 41 is connected to the liquid hole 32 between adjacent liquid storage cavities 31.

[0030] The liquid level observation structure 5 is used to observe the liquid level height of the liquid inside the box body 1. The liquid level observation structure 5 is made of a transparent material and is provided with a linear light source on the outside. The liquid level height in the box body 1 is accurately judged by the refraction of the linear light source by the liquid level observation structure 5;

[0031] The liquid level observation structure 5 includes a liquid level observation block 51 and a supporting block 52. The liquid level observation block 51 is inserted into the box body 1 and is located not only in the liquid storage structure 3 but also in the pressure regulating structure 4. The liquid level observation block 51 is located at one of the liquid holes 32 connected to the pressure regulating hole 41. The end of the liquid level observation block 51 located in the box body 1 is a polygonal shape protruding into the box body 1, wherein the multiple horizontal edges of the liquid level observation block 51 are parallel to the setting directions of the two adjacent liquid storage structures 3, and the multiple vertical edges of the liquid level observation block 51 are parallel to the setting directions of the liquid storage structure 3 and the pressure regulating cavity 42 located at the same position. The above arrangement can make the external linear light source better and more accurately irradiate the box body 1;

[0032] The supporting block 52 is fixedly connected to the liquid level observation block 51, and one end thereof is located outside the box body 1. At the same time, a light source groove 54 with the same shape as the liquid level observation block 51 is provided on the supporting block 52. The external linear light source is inserted into the light source groove 54 and irradiated to the interior of the box body 1.

[0033] The box body 1 is also provided with a placement groove 6 for accommodating the bearing block 52 , which is communicated with the pressure regulating chamber 42 and the liquid storage chamber 31 . The bearing block 52 is also provided with a sealing ring 53 for improving the sealing degree between the box body 1 and the bearing block 52 .

[0034] When the present invention is used, the worker installs the cartridge 1 in the printing device, and inserts the nozzle of the printing device into the liquid outlet hole 21. When the nozzle is inserted into the liquid outlet hole 21, the sealing piece of the nozzle opening to the liquid outlet hole 21 is broken. At this time, the air inlet hole 22, the liquid storage structure 3 and the liquid outlet hole 21 form a passage. When the nozzle absorbs the liquid in the liquid storage structure 3, the gas enters the liquid storage structure 3 through the air inlet hole 22.

[0035] When the nozzle absorbs a large amount of liquid in the liquid storage structure 3, the liquid storage structure 3 shares the pressure of the liquid storage structure 3 through the pressure regulating hole 41. At the same time, the liquid storage structure 3 provides negative pressure for the pressure regulating cotton 43. Under the action of the negative pressure, part of the pressure regulating cotton 43 enters the liquid storage structure 3 through the pressure regulating hole 41. At the same time, after the gas in the air inlet 22 enters an appropriate amount, the liquid storage structure 3, the pressure regulating chamber 42 and the pressure regulating cotton 43 return to their initial state.

[0036] When the box body 1 is installed in the printer, the line light source in the printer is located in the light source slot 54. The line light source is directly irradiated to the interior of the box body 1 through the polygonal prism of the bottom wall of the light source slot 54 and the polygonal prism of the liquid level observation block 51. When the line light source does not refract, the amount of ink in the box body 1 is insufficient and needs to be replaced.

[0037] The utility model adopts a pressure regulating chamber 42 arranged on one side of the liquid storage chamber 31 to share the pressure in the liquid storage chamber 31. At the same time, the arrangement of the pressure regulating cotton 43 allows the liquid in the pressure regulating chamber 42 to slowly pass through the pressure regulating hole 41, thereby protecting the side wall of the box body 1;

[0038] The present invention adopts a liquid level observation block 51 inserted into the box body 1, a supporting block 52 and a light source slot 54 opened on the supporting block 52, which can make the external linear light source better illuminate the interior of the box body 1. When the liquid level in the box body 1 drops to the lowest position, the light beam irradiated by the linear light source into the box body 1 will no longer be refracted, so the liquid in the box body 1 can be directly observed through the linear light source.

Claims

1. A fluid box with accurate liquid level observation, comprising a box body (1), a liquid outlet structure (2), a liquid storage structure (3), a pressure regulating structure (4) and a liquid level observation structure (5), wherein the liquid storage structure (3) is arranged in the box body (1) for storing printer ink, the liquid outlet structure (2) is arranged on the box body (1) for outputting the ink in the liquid storage structure (3) to the nozzle of the printer, the pressure regulating structure (4) is connected to the liquid storage structure (3) for regulating the internal pressure of the liquid storage structure (3), and the liquid level observation structure (5) is arranged on the box body (1) for observing the position of the ink in the box body (1); It is characterized in that The pressure regulating structure (4) is arranged in the box body (1) and is connected to the liquid storage structure (3) through the pressure regulating hole (41). The liquid level observation structure (5) includes a liquid level observation block (51) and a supporting block (52). The liquid level observation block (51) is installed on the supporting block (52). The liquid level observation block (51) is inserted into the box body (1) and is located in the pressure regulating structure (4) and the liquid storage structure (3). The end of the supporting block (52) away from the liquid level observation block (51) is connected to the outside world. The supporting block (52) and the liquid level observation block (51) are both made of transparent material.

2. A fluid box with accurate liquid level observation according to claim 1, characterized in that: The box body (1) is provided with a placement groove (6) that is in communication with the pressure regulating structure (4) and the liquid storage structure (3); the bearing block (52) is located in the placement groove (6) and is fixedly connected to the placement groove (6) via a sealing ring (53).

3. A fluid box with accurate liquid level observation according to claim 2, characterized in that: One end of the liquid level observation block (51) inserted into the box body (1) is convex toward the inside of the box body (1), and a light source groove (54) is provided on the supporting block (52) and is recessed toward the inside of the box body (1), and the bottom wall of the light source groove (54) is in the shape of a polygonal column.

4. The fluid box with accurate liquid level observation according to claim 1, characterized in that: The pressure regulating structure (4) comprises a pressure regulating chamber (42) and a pressure regulating cotton (43). The pressure regulating chamber (42) is arranged on one side of the liquid storage structure (3) and corresponds one-to-one with the liquid storage structure (3). The pressure regulating cotton (43) is arranged inside the pressure regulating chamber (42) and can block the pressure regulating hole (41). The pressure regulating hole (41) is located in the middle of the side of the pressure regulating cotton (43).

5. A fluid box with accurate liquid level observation according to claim 4, characterized in that: The liquid storage structure (3) comprises a plurality of liquid storage cavities (31), the pressure regulating cavities (42) correspond to the liquid storage cavities (31) on a one-to-one basis, two adjacent liquid storage cavities (31) are connected via a liquid hole (32), and the pressure regulating hole (41) is connected to the liquid hole (32).

6. The fluid box with accurate liquid level observation according to claim 2, characterized in that: The placement groove (6) is communicated with one of the pressure regulating holes (41).

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