Paper ink tank sealing structure

Abstract

The utility model discloses a paper ink tank sealing structure, and relates to the technical field of ink storage. The paper ink tank sealing structure comprises a cover plate, an inner cover is fixedly installed at the bottom of the cover plate, a tank body is placed at the bottom of the cover plate, the inner cover is located on the inner side of the tank body, plug pins are arranged on the two sides of the inner cover, a groove is formed in the inner side of the tank body, one end of each plug pin is installed in the groove in a clamped mode, and the paper ink tank sealing structure further comprises a pulling structure installed at the other end of each plug pin. And one end of the bolt is moved out of the groove of the tank body through the pulling structure. According to the sealing structure of the paper ink tank, the inner cover and the cover plate are limited in the opening of the tank body through the plug pin, so that the inner cover and the cover plate cannot be ejected out of the tank body even if the interior of the tank body is thermally expanded due to vibration, the possibility of ink leakage is avoided, and the sealing performance of the ink tank is greatly improved; and the inner cover and the cover plate can be conveniently taken out from the opening of the tank body.

Description

Technical Field

[0001] The utility model relates to the technical field of ink storage, in particular to a sealing structure of a paper ink tank. Background Art

[0002] Chinese patent document CN220350331U discloses a metal ink tank with a sealing structure, including a tank body and a tank cover, and also an inner cover, wherein the outer side of the tank body top is formed with an arc-shaped top edge, and the outer side of the tank body top is formed with a plurality of convex strips arranged in an array at the upper end of the arc-shaped top edge, and the plurality of convex strips are arranged in a circumferential spiral shape, and the outer side of the tank cover and the convex strips are formed with strip-shaped grooves at the joints, and a circular flange is formed upwardly on the inner side of the tank body top, and a through hole is opened on the inner cover, and a sealing member is provided on the through hole in an interference fit, and an elastic body is fixed at the bottom of the sealing member, and the elastic body is in an interference fit with the through hole, and an arc handle is formed outwardly on the top of the sealing member and located on one side of the opening. The utility model guarantees the sealing effect to a great extent, improves the production quality, and through the design of the inner cover, the air is discharged through the through hole when the cover is closed, so that it can be prevented from being inconvenient to close the cover due to air, and the sealing member is opened first when opening, and the inner cover can be opened conveniently and quickly after the air is introduced, which is convenient to use and guarantees the ink quality to a great extent.

[0003] However, the ink tank is sealed by snapping the cover. However, during transportation, the ink tank may be vibrated and the internal thermal expansion of the tank body may cause the cover to be pushed out, resulting in ink leakage. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing structure for a paper ink tank to solve the problems and defects raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a paper ink tank sealing structure, comprising a cover plate, an inner cover is fixedly installed on the bottom of the cover plate, a tank body is placed on the bottom of the cover plate, the inner cover is located on the inner side of the tank body, latches are arranged on both sides of the inner cover, a groove is opened on the inner side of the tank body, one end of the latch is snap-fitted and installed in the groove, and is used to limit the inner cover and the cover plate at the opening of the tank body. Even if there is vibration or thermal expansion inside the tank body, the inner cover and the cover plate will not be pushed out of the tank body, thereby avoiding the possibility of ink leakage, greatly improving the sealing of the ink tank, and also comprising a pulling structure installed on the other end of the latch, which is used to move one end of the latch out of the groove of the tank body through the pulling structure, and a sealing rod is arranged on the outer wall of the bottom of the inner cover, and a rotating structure is installed on the top of the sealing rod, which is used to drive the sealing rod to clean the ink on the outer wall of the bottom of the inner cover.

[0006] Preferably, the pulling structure includes a sliding rod, a connecting plate, and a connecting rod. The sliding rod is slidably installed at the center of the cover plate, the connecting plate is fixedly installed at the bottom of the sliding rod, and there are two groups of connecting rods, both of which are hingedly installed at the bottom of the connecting plate. The other ends of the two groups of connecting rods are respectively hingedly installed with one end of the two groups of pins, so as to facilitate moving one end of the pin out of the groove.

[0007] Preferably, the slide rod is provided with a mounting hole, and a pull ring is placed in the mounting hole.

[0008] Preferably, a push spring is sleeved on the outer wall of the sliding rod, and the push spring is fixedly installed on the bottom of the cover plate and the top of the connecting plate, so as to reset the pulling structure.

[0009] Preferably, the rotating structure includes a rotating rod, a gear A, a rotating shaft, a gear B and a knob. The rotating rod is rotatably installed on the cover plate and the bottom of the inner cover, the gear A is fixedly installed on the outer wall of the rotating rod, the rotating shaft is rotatably installed on the bottom of the inner cover, the bottom end of the rotating shaft is fixedly installed on the top of the sealing rod, the gear B is fixedly installed on the outer wall of the rotating shaft, and the gear B is meshed with the gear A. The knob is fixedly installed on the top of the rotating rod, which can drive the sealing rod to rotate so that the sealing rod can clean the ink on the outer wall of the bottom of the inner cover to prevent the ink at the bottom of the inner cover from dripping when the tank body is opened and closed, and can also drive the sealing rod to move to the bottom of the exhaust hole to seal the exhaust hole.

[0010] Preferably, a sealing groove is provided on the outer wall of the inner cover, a sealing ring is sleeved in the sealing groove, and the sealing ring contacts the inner wall of the tank body, thereby further improving the sealing effect of the ink tank.

[0011] Preferably, a fixing rod is slidably mounted on the outer wall of the latch, and the fixing rod is fixedly mounted on the bottom of the cover plate and the inner bottom of the inner cover. Openings are provided on both sides of the inner cover, and the latch is slidably mounted in the openings for guiding the latch.

[0012] Preferably, the rotating rod and the knob are provided with exhaust holes, and the sealing rod is located below the exhaust holes. When the cover is closed, air is exhausted through the exhaust holes to prevent inconvenience in closing due to air. When the cover is opened, air enters through the exhaust holes to open the opening conveniently and quickly.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The sealing structure of the paper ink tank is used to limit the inner cover and the cover plate at the opening of the tank body through a latch pin. Even if there is vibration or thermal expansion inside the tank body, the inner cover and the cover plate will not be pushed out of the tank body, thereby avoiding the possibility of ink leakage, greatly improving the sealing performance of the ink tank. Moreover, through the coordinated use of the pulling structure, the push spring and the pull ring, the inner cover and the cover plate can be conveniently removed from the opening of the tank body. Through the rotating structure, the sealing rod can be driven to rotate, so that the sealing rod can clean the ink on the outer wall of the bottom of the inner cover. When the tank body is opened and closed, the ink on the bottom of the inner cover is avoided from dripping. The sealing rod can also be driven to move to the bottom of the exhaust hole to seal the exhaust hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the tank body of the utility model;

[0018] Figure 3 It is a cross-sectional view of the inner cover of the utility model.

[0019] Figure numerals: 1. tank body; 2. cover plate; 3. inner cover; 4. sealing ring; 5. fixing rod; 6. latch; 7. sliding rod; 8. connecting plate; 9. push spring; 10. connecting rod; 11. pull ring; 12. rotating rod; 13. gear A; 14. rotating shaft; 15. sealing rod; 16. gear B; 17. knob. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] See also Figure 1-3The utility model provides a technical solution: a sealing structure for a paper ink tank, comprising a cover plate 2, an inner cover 3 is fixedly installed at the bottom of the cover plate 2, a tank body 1 is placed at the bottom of the cover plate 2, the inner cover 3 is located at the inner side of the tank body 1, and latches 6 are arranged on both sides of the inner cover 3, a groove is opened on the inner side of the tank body 1, one end of the latch 6 is snap-fitted and installed in the groove, and is used to limit the inner cover 3 and the cover plate 2 to the opening of the tank body 1, even if there is vibration or thermal expansion inside the tank body, the inner cover 3 and the cover plate 2 will not be pushed out of the tank body 1, thereby avoiding the possibility of ink leakage, greatly improving the sealing performance of the ink tank, and also comprising a pulling structure installed at the other end of the latch 6, which is used to move one end of the latch 6 out of the groove of the tank body 1, and a sealing rod 15 is arranged on the outer wall of the bottom of the inner cover 3, and a rotating structure is installed on the top of the sealing rod 15, which is used to drive the sealing rod 15 to clean the ink on the outer wall of the bottom of the inner cover 3.

[0022] The pulling structure includes a sliding rod 7, a connecting plate 8, and a connecting rod 10. The sliding rod 7 is slidably installed at the center of the cover plate 2, and the connecting plate 8 is fixedly installed at the bottom of the sliding rod 7. There are two groups of connecting rods 10, both of which are hingedly installed at the bottom of the connecting plate 8. The other ends of the two groups of connecting rods 10 are respectively hingedly installed with one end of the two groups of latches 6. Pull the pull ring 11 upward, and the pull ring 11 drives the sliding rod 7, the connecting plate 8, and one end of the connecting rod 10 to move upward, so that the other end of the connecting rod 10 moves with the latch 6, and one end of the latch 6 is moved out of the groove.

[0023] The slide bar 7 is provided with a mounting hole, and a pull ring 11 is placed in the mounting hole.

[0024] The outer wall of the slide rod 7 is sleeved with a push spring 9, and the push spring 9 is fixedly installed on the bottom of the cover plate 2 and the top of the connecting plate 8, so as to reset the pulling structure.

[0025] The rotating structure includes a rotating rod 12, a gear A13, a rotating shaft 14, a gear B16 and a knob 17. The rotating rod 12 is rotatably mounted on the bottom of the cover plate 2 and the inner cover 3. The gear A13 is fixedly mounted on the outer wall of the rotating rod 12. The rotating shaft 14 is rotatably mounted on the bottom of the inner cover 3. The bottom end of the rotating shaft 14 is fixedly mounted on the top of the sealing rod 15. The gear B16 is fixedly mounted on the outer wall of the rotating shaft 14, and the gear B16 is meshed with the gear A13. The knob 17 is fixedly mounted on the outer wall of the rotating rod 12. At the top, before opening the tank body, manually twist the knob 17, which drives the rotating rod 12 and the gear A13 to rotate. The rotation of the gear A13 drives the gear B16, the rotating shaft 14, and the sealing rod 15 to rotate, so that the sealing rod 15 can clean the ink on the outer wall of the bottom of the inner cover 3. When the tank body 1 is opened and closed, the ink at the bottom of the inner cover 3 is prevented from dripping. The sealing rod 15 can also be driven to move to the bottom of the exhaust hole to seal the exhaust hole.

[0026] A sealing groove is formed on the outer wall of the inner cover 3, and a sealing ring 4 is sleeved in the sealing groove. The sealing ring 4 contacts the inner wall of the tank body 1, thereby further improving the sealing effect of the ink tank.

[0027] A fixing rod 5 is slidably mounted on the outer wall of the latch 6. The fixing rod 5 is fixedly mounted on the bottom of the cover plate 2 and the inner bottom of the inner cover 3. Openings are provided on both sides of the inner cover 3. The latch 6 is slidably mounted in the openings for guiding the latch 6.

[0028] The rotating rod 12 and the knob 17 are provided with exhaust holes, and the sealing rod 15 is located below the exhaust holes. When the cover is closed, air is exhausted through the exhaust holes to prevent inconvenience in closing due to air. When the cover is opened, air enters through the exhaust holes, which allows for convenient and quick opening.

[0029] Working principle: before opening the tank body, manually twist the knob 17, the knob 17 drives the rotating rod 12 and the gear A13 to rotate, the rotation of the gear A13 drives the gear B16, the rotating shaft 14, and the sealing rod 15 to rotate, so that the sealing rod 15 can clean the ink on the outer wall of the bottom of the inner cover 3. In the process of cleaning the ink, the sealing rod 15 will move out from under the exhaust hole, driving the inside and outside of the tank body 1 to communicate with each other, so that the pressure inside and outside the tank body 1 remains consistent, and when the tank body is opened, it is avoided that the tank body is difficult to open due to atmospheric pressure; by pulling the pull ring 11 upwards, the pull ring 11 drives the sliding rod 7, the connecting plate 8, and one end of the connecting rod 10 to move upwards, so that the other end of the connecting rod 10 and the latch 6 move, and one end of the latch 6 is moved out of the groove, so that the inner cover 3 and the cover plate 2 can be taken out from the opening of the tank body 1 to open the tank body.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A sealing structure for a paper ink tank, comprising a cover plate (2), an inner cover (3) fixedly mounted on the bottom of the cover plate (2), a tank body (1) placed on the bottom of the cover plate (2), the inner cover (3) located on the inner side of the tank body (1), latches (6) arranged on both sides of the inner cover (3), a groove arranged on the inner side of the tank body (1), one end of the latch (6) being snap-fitted and mounted in the groove, characterized in that: Also includes: A pulling structure installed at the other end of the latch (6), used to move one end of the latch (6) out of the groove of the tank body (1); A sealing rod (15) is arranged on the outer wall of the bottom of the inner cover (3), and a rotating structure is installed on the top of the sealing rod (15). The rotating structure is used to drive the sealing rod (15) to clean the ink on the outer wall of the bottom of the inner cover (3).

2. A sealing structure for a paper ink tank according to claim 1, characterized in that: The pulling structure comprises a sliding rod (7), a connecting plate (8), and a connecting rod (10); the sliding rod (7) is slidably mounted at the center of the cover plate (2); the connecting plate (8) is fixedly mounted at the bottom of the sliding rod (7); and the connecting rod (10) has two groups of connecting rods, both of which are hingedly mounted at the bottom of the connecting plate (8); and the other ends of the two groups of connecting rods (10) are respectively hingedly mounted to one end of the two groups of latches (6).

3. A sealing structure for a paper ink tank according to claim 2, characterized in that: The slide bar (7) is provided with a mounting hole, and a pull ring (11) is placed in the mounting hole.

4. A sealing structure for a paper ink tank according to claim 3, characterized in that: The outer wall of the slide rod (7) is sleeved with a push spring (9), and the push spring (9) is fixedly installed on the bottom of the cover plate (2) and the top of the connecting plate (8).

5. The sealing structure of a paper ink tank according to claim 4, characterized in that: The rotating structure comprises a rotating rod (12), a gear A (13), a rotating shaft (14), a gear B (16) and a knob (17); the rotating rod (12) is rotatably mounted on the bottom of the cover plate (2) and the inner cover (3); the gear A (13) is fixedly mounted on the outer wall of the rotating rod (12); the rotating shaft (14) is rotatably mounted on the bottom of the inner cover (3); the bottom end of the rotating shaft (14) is fixedly mounted on the top of the sealing rod (15); the gear B (16) is fixedly mounted on the outer wall of the rotating shaft (14), and the gear B (16) is meshed with the gear A (13); and the knob (17) is fixedly mounted on the top of the rotating rod (12).

6. The sealing structure of a paper ink tank according to claim 5, characterized in that: The outer wall of the inner cover (3) is provided with a sealing groove, a sealing ring (4) is sleeved in the sealing groove, and the sealing ring (4) is in contact with the inner wall of the tank body (1).

7. The sealing structure of a paper ink tank according to claim 6, characterized in that: A fixing rod (5) is slidably mounted on the outer wall of the latch (6), and the fixing rod (5) is fixedly mounted on the bottom of the cover plate (2) and the inner bottom of the inner cover (3). Openings are provided on both sides of the inner cover (3), and the latch (6) is slidably mounted in the openings.

8. The sealing structure of a paper ink tank according to claim 7, characterized in that: The rotating rod (12) and the knob (17) are provided with exhaust holes, and the sealing rod (15) is located below the exhaust hole.

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