Leakage-proof ink box for printer

Abstract

The utility model relates to the technical field of ink boxes, in particular to a leakproof ink box for a printer, which comprises an ink box body, an ink box cover, a leakproof structure and a ventilation structure, the top of the ink box body is fixedly connected with the ink box cover, the rear end of the ink box cover is provided with an ink injection hole I, and the bottom of the ink box cover is provided with the leakproof structure. A ventilation structure is installed at the front end of the ink box cover, and the leakage-proof structure comprises a rubber ring, a first fixing plate, a second ink injection hole, a sliding groove, a limiting groove, a second fixing plate, a sliding block, a shifting piece, a sliding rod and a buckle. The ink box is provided with the leakage-proof structure, and the leakage-proof structure can prevent ink which is not absorbed by the sponge in the ink box body from flowing back to the ink injection hole I, so that the ink overflows from the ink box body, and the ink leakage of the ink box is prevented. The ink box is provided with the ventilation structure, and ink can be prevented from leaking through the first air hole through the ventilation structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of ink cartridges, and particularly relates to a leak-proof ink cartridge for a printer. Background Art

[0002] The ink cartridge is an important part of an inkjet printer, and its quality will directly affect the printing effect of the inkjet printer. Generally speaking, from the composition structure of the ink cartridges on the current market, they can be divided into: split ink cartridges and integrated ink cartridges. Existing ink cartridges generally fill a sponge in the ink chamber to prevent the ink from dripping out of the ink outlet when the ink cartridge is not installed on the inkjet coder.

[0003] However, the existing ink cartridges do not have a leak-proof structure. The sponge in the traditional ink cartridge has a limited capacity to absorb ink. Therefore, the ink that is not absorbed by the sponge easily overflows from the ink inlet, resulting in ink leakage and causing inconvenience in use. Therefore, there is an urgent need for a leak-proof ink cartridge for a printer to solve the above problems. Summary of the Utility Model

[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a leak-proof ink cartridge for a printer to solve the problems in the above background art that the existing ink cartridges do not have a leak-proof structure, the sponge in the traditional ink cartridge has a limited capacity to absorb ink, so the ink that is not absorbed by the sponge easily overflows from the ink inlet, resulting in ink leakage and causing inconvenience in use.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A leak-proof ink cartridge for a printer, including an ink cartridge body, an ink cartridge cover, a leak-proof structure and a ventilation structure. The top of the ink cartridge body is fixedly connected to the ink cartridge cover. A first ink injection hole is opened at the rear end of the ink cartridge cover. A leak-proof structure is installed at the bottom of the ink cartridge cover. A ventilation structure is installed at the front end of the ink cartridge cover. The leak-proof structure includes a rubber ring, a first fixing plate, a second ink injection hole, a sliding groove, a limiting groove, a second fixing plate, a sliding block, a dial, a sliding rod and a buckle.

[0006] Preferably, the rubber ring is fixedly connected to the bottom of the ink cartridge cover. The second ink injection hole is opened on the first fixing plate. The left and right ends of the top of the first fixing plate are fixedly connected to the sliding grooves.

[0007] Preferably, the inner wall of the sliding groove is provided with a limiting groove. The rear end of the top of the first fixing plate is fixedly connected to the second fixing plate. The sliding groove and the second fixing plate are both fixedly connected to the bottom of the ink cartridge cover. The rear end of the top of the sliding block is fixedly connected to the dial.

[0008] Preferably, sliding rods are fixedly connected to both the left and right sides of the sliding block. The sliding rods are slidably connected to the sliding grooves. A buckle is fixedly connected to the side of the sliding rod away from the sliding block. The buckle is snap-fitted into the limiting groove.

[0009] Preferably, the ventilation structure comprises a fixing rod, a first air hole, a second slider, a second air hole and a tension spring, and the fixing rod is fixedly connected to the inner wall of the ink cartridge cover.

[0010] Preferably, the top and left and right ends of the fixing rod are each provided with air hole 1, the fixing rod is slidably connected to a sliding block 2, and the top and left and right ends of the sliding block 2 are each provided with air hole 2.

[0011] Preferably, the top of the sliding block 2 is fixedly connected to one end of a tension spring, and the other end of the tension spring is fixedly connected to the inner wall of the fixing rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The leak-proof ink cartridge for a printer is provided with a leak-proof structure. When the ink cartridge body needs to be added with ink, the paddle is pushed backward to make the paddle drive the slider and the slide rod to move backward. The elasticity of the buckle plastic makes the buckle no longer engage with the front end of the limiting groove. When the buckle slides to the rear end of the limiting groove, the buckle reengages the limiting groove. At this time, the slider no longer covers the ink injection hole 2. The ink injector is inserted into the ink injection hole 1 and the ink injection hole 2 to add ink to the sponge in the ink cartridge body. When the adding is completed, the paddle is swung downward to block the ink injection hole 1 through the rubber ring and the slider. The leak-proof structure can prevent the ink in the ink cartridge body that is not absorbed by the sponge from flowing back to the ink injection hole 1, causing the ink to overflow from the ink cartridge body, thereby preventing the ink cartridge from leaking.

[0014] 2. The leak-proof ink cartridge for a printer is provided with a ventilation structure. As the ink in the ink cartridge is continuously consumed, a negative pressure is formed in the ink cartridge body. When the negative pressure reaches a certain amount, the slider 2 moves downward under the action of the external atmospheric pressure, overcoming the tension of the tension spring, and the atmosphere enters the ink cartridge body through the air holes 1 and 2. The gas in the ink cartridge body is replenished, the air pressure rises, and the slider 2 moves upward, so that the channel for the atmosphere to enter the ink cartridge body is blocked. The ventilation structure can prevent the ink from leaking through the air hole 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front perspective schematic diagram of the utility model;

[0016] Figure 2 This is a side cross-sectional schematic diagram of the ink cartridge cover of the utility model;

[0017] Figure 3 This is a schematic diagram of the leak-proof structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the explosion structure of the leak-proof structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the explosion structure of the ventilation structure of the utility model.

[0020] In the figure: 1, ink cartridge body; 2, ink cartridge cover; 21, first ink injection hole; 3, leak-proof structure; 31, rubber ring; 32, first fixing plate; 33, second ink injection hole; 34, sliding groove; 35, limiting groove; 36, second fixing plate; 37, slider; 38, dial; 39, sliding rod; 310, buckle; 4, ventilation structure; 41, fixing rod; 42, first air hole; 43, second slider; 44, second air hole; 45, tension spring. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present invention: a leak-proof ink cartridge for a printer, including an ink cartridge body 1, an ink cartridge cover 2, a leak-proof structure 3 and a ventilation structure 4. The top of the ink cartridge body 1 is fixedly connected to the ink cartridge cover 2. A first ink injection hole 21 is opened at the rear end of the ink cartridge cover 2. A leak-proof structure 3 is installed at the bottom of the ink cartridge cover 2. A ventilation structure 4 is installed at the front end of the ink cartridge cover 2. The leak-proof structure 3 includes a rubber ring 31, a first fixing plate 32, a second ink injection hole 33, a sliding groove 34, a limiting groove 35, a second fixing plate 36, a slider 37, a dial 38, a sliding rod 39 and a buckle 310. Through the leak-proof structure 3, it is possible to prevent the ink that has not been absorbed by the sponge in the ink cartridge body 1 from flowing back to the first ink injection hole 21, resulting in the ink overflowing from the ink cartridge body 1 and preventing the ink cartridge from leaking ink.

[0023] The rubber ring 31 is fixedly connected to the bottom of the ink cartridge cover 2. A second ink injection hole 33 is opened on the first fixing plate 32. The left and right ends of the top of the first fixing plate 32 are fixedly connected to the sliding grooves 34.

[0024] A limiting groove 35 is opened on the inner wall of the sliding groove 34. The rear end of the top of the first fixing plate 32 is fixedly connected to the second fixing plate 36. The sliding groove 34 and the second fixing plate 36 are both fixedly connected to the bottom of the ink cartridge cover 2. The rear end of the top of the slider 37 is fixedly connected to the dial 38. The first ink injection hole 21 is blocked by the rubber ring 31 and the slider 37.

[0025] Both the left and right sides of the slider 37 are fixedly connected to the slide bar 39. The slide bar 39 is slidably connected to the chute 34. The side of the slide bar 39 away from the slider 37 is fixedly connected to the buckle 310. The buckle 310 is snap-connected to the limit groove 35. Pull the toggle 38 backward to drive the slider 37 and the slide bar 39 to move backward. Due to the elasticity of the plastic of the buckle 310, the buckle 310 no longer snaps onto the front end of the limit groove 35. When the buckle 310 slides to the rear end of the limit groove 35, the buckle 310 snaps onto the limit groove 35 again. At this time, the slider 37 no longer covers the second ink injection hole 33.

[0026] The ventilation structure 4 includes a fixed rod 41, a first air hole 42, a second slider 43, a second air hole 44, and a tension spring 45. The fixed rod 41 is fixedly connected to the inner wall of the ink cartridge cover 2.

[0027] The top and the left and right ends of the fixed rod 41 are each provided with a first air hole 42. The fixed rod 41 is slidably connected to the second slider 43. The top and the left and right ends of the second slider 43 are each provided with a second air hole 44.

[0028] One end of the tension spring 45 is fixedly connected to the top of the second slider 43, and the other end of the tension spring 45 is fixedly connected to the inner wall of the fixed rod 41.

[0029] Working principle:

[0030] During use, when it is necessary to refill the ink cartridge body 1, pull the toggle 38 backward to drive the slider 37 and the slide bar 39 to move backward. Due to the elasticity of the plastic of the buckle 310, the buckle 310 no longer snaps onto the front end of the limit groove 35. When the buckle 310 slides to the rear end of the limit groove 35, the buckle 310 snaps onto the limit groove 35 again. At this time, the slider 37 no longer covers the second ink injection hole 33. The ink injector can be inserted into the first ink injection hole 21 and the second ink injection hole 33 to add ink to the sponge in the ink cartridge body 1. After the addition is completed, push the toggle 38 downward to block the first ink injection hole 21 through the rubber ring 31 and the slider 37. The anti-leakage structure 3 can prevent the ink in the ink cartridge body 1 that has not been absorbed by the sponge from flowing back to the first ink injection hole 21, resulting in the ink overflowing from the ink cartridge body 1 and preventing the ink cartridge from leaking. As the ink in the ink cartridge is continuously consumed, a negative pressure is formed in the ink cartridge body 1. When the negative pressure reaches a certain amount, the second slider 43 moves downward under the action of the external atmospheric pressure, overcoming the tension of the tension spring 45. The air enters the ink cartridge body 1 through the first air hole 42 and the second air hole 44, and the gas in the ink cartridge body 1 is replenished, and the air pressure rises. The second slider 43 moves upward to block the channel for the air to enter the ink cartridge body 1. The ventilation structure 4 can prevent the ink from leaking through the first air hole 42.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A leak-proof ink cartridge for a printer, comprising an ink cartridge body (1), an ink cartridge cover (2), a leak-proof structure (3) and a venting structure (4), characterized in that: The top of the ink cartridge body (1) is fixedly connected to the ink cartridge cover (2); the rear end of the ink cartridge cover (2) is provided with an ink injection hole (21); the bottom of the ink cartridge cover (2) is provided with a leak-proof structure (3); the front end of the ink cartridge cover (2) is provided with a ventilation structure (4); the leak-proof structure (3) comprises a rubber ring (31), a fixing plate (32), an ink injection hole (33), a slide groove (34), a limiting groove (35), a fixing plate (36), a slider (37), a paddle (38), a slide rod (39) and a buckle (310).

2. The leak-proof ink cartridge for a printer according to claim 1, characterized in that: The rubber ring (31) is fixedly connected to the bottom of the ink cartridge cover (2), the fixing plate (32) is provided with an ink injection hole (33), and the left and right ends of the top of the fixing plate (32) are fixedly connected to the slide groove (34).

3. The leak-proof ink cartridge for a printer according to claim 2, characterized in that: A limiting groove (35) is provided on the inner wall of the slide groove (34); the rear end of the top of the fixing plate 1 (32) is fixedly connected to the fixing plate 2 (36); the slide groove (34) and the fixing plate 2 (36) are both fixedly connected to the bottom of the ink cartridge cover (2); and the rear end of the top of the sliding block (37) is fixedly connected to the paddle (38).

4. The leak-proof ink cartridge for a printer according to claim 3, characterized in that: The left and right sides of the slider (37) are fixedly connected to a sliding rod (39), the sliding rod (39) is slidably connected to the sliding groove (34), the side of the sliding rod (39) away from the slider (37) is fixedly connected to a buckle (310), and the buckle (310) is engaged with the limiting groove (35).

5. The leak-proof ink cartridge for a printer according to claim 1, characterized in that: The ventilation structure (4) comprises a fixing rod (41), a first air hole (42), a second sliding block (43), a second air hole (44) and a tension spring (45); the fixing rod (41) is fixedly connected to the inner wall of the ink cartridge cover (2).

6. The leak-proof ink cartridge for a printer according to claim 5, characterized in that: The top and left and right ends of the fixing rod (41) are both provided with air holes (42); the fixing rod (41) is slidably connected to a sliding block (43); and the top and left and right ends of the sliding block (43) are both provided with air holes (44).

7. The leak-proof ink cartridge for a printer according to claim 6, characterized in that: The top of the second sliding block (43) is fixedly connected to one end of a tension spring (45), and the other end of the tension spring (45) is fixedly connected to the inner wall of the fixing rod (41).

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