A kind of anti-leakage double-seal ink path connecting device of ink-jet printer

Abstract

This invention provides a leak-proof, double-sealed inkjet printer ink path connection device, including a male pipe and a female pipe inserted into the male pipe. The outer wall of the male pipe is fixedly fitted with an outer ring plate 1 and an outer ring plate 2 located inside the female pipe. The outer ring plate 1 is positioned closer to the inlet of the male pipe than the outer ring plate 2. The inner circumferential wall of the female pipe is fixedly fitted with an inner ring plate 1 and an inner ring plate 2. The outer ring plate 1 is located outside the inner ring plate 1, and a sealing ring 1 is disposed between them. The outer ring plate 2 is located outside the inner ring plate 2, and a sealing ring 2 is disposed between them. In this invention, by setting the sealing ring 1, sealing ring 2, outer ring plate 1, outer ring plate 2, inner ring plate 1, and inner ring plate 2, the sealing ring 1 and sealing ring 2 have a double-sealing function when simultaneously compressed, greatly improving the leak-proof effect and extending the sealing life.

Description

Technical Field

[0001] This utility model relates to the technical field of printer ink path connection connectors, specifically a leak-proof double-sealed ink path connection device for inkjet printers. Background Technology

[0002] Product identification and traceability in industries such as food, beverage, chemical, and electronics typically require inkjet printing. Inkjet printing requires an inkjet printer, which includes an ink cartridge (to hold ink), a water pump, a filter assembly, connecting pipes, and a printhead. For ease of assembly and disassembly, detachable connectors are usually installed on the pipes.

[0003] Currently, to prevent ink leakage at the connector, it is usually necessary to seal the connector. Common connectors typically consist of a female, male, and sealing ring structure. During connection, the female and male connectors are screwed together via a threaded structure, and the sealing ring is located between the female and male connectors. The sealing ring deforms and seals when compressed. However, these sealing rings are usually single, and the sealing ring is subjected to circumferential friction when the female and male connectors are screwed on, which can easily damage the sealing ring. Moreover, a single sealing ring is prone to sealing failure under long-term pressure and temperature changes, meaning that the sealing life of a single sealing ring is relatively short. In addition, when leakage occurs, it cannot be detected in time, which not only affects print quality but also contaminates the printing equipment.

[0004] Therefore, this utility model provides a leak-proof, double-sealed ink path connection device for inkjet printers. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a leak-proof, double-sealed ink path connection device for inkjet printers, thereby solving the problems mentioned in the background section. This invention has the advantage of better leak-proof performance with double-layer sealing, and also has an ink leakage warning function.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a leak-proof double-sealed inkjet printer ink path connection device, comprising a male pipe and a female pipe inserted into the male pipe. The outer wall of the male pipe is fixedly fitted with an outer ring plate 1 and an outer ring plate 2 located inside the female pipe. The outer ring plate 1 is positioned closer to the inlet of the male pipe than the outer ring plate 2. The inner circumferential wall of the female pipe is fixedly fitted with an inner ring plate 1 and an inner ring plate 2. The outer ring plate 1 is located outside the inner ring plate 1 and a sealing ring 1 is provided between the two. The outer ring plate 2 is located outside the inner ring plate 2 and a sealing ring 2 is provided between the two. An ear plate 1 is fixedly connected to the outer wall of the male pipe, and an ear plate 2 is fixedly connected to the outer wall of the female pipe. The ear plate 1 and the ear plate 2 are connected by bolts.

[0007] Furthermore, the outer diameter of the outer ring plate is smaller than the inner diameter of the inner ring plate and larger than the inner diameter of the inner ring plate, and the outer diameter of the outer ring plate is larger than the inner diameter of the inner ring plate.

[0008] Furthermore, the male tube is fixedly fitted with a front positioning ring platform located on the front side of the outer ring plate, the front positioning ring platform is sleeved through the inner ring plate and the two are fitted with a gap, and the male tube is also fixedly fitted with a rear positioning ring platform located on the front side of the outer ring plate, the rear positioning ring platform is sleeved through the inner ring plate and the two are fitted with a gap.

[0009] Furthermore, there are two ear plates, one ear plate and two ear plates, which are symmetrically distributed relative to the male pipe and the female pipe, respectively. One side of the ear plate two is provided with a threaded hole for screwing in with the bolt, and one side of the ear plate one is provided with a through hole adapted to the bolt.

[0010] Furthermore, a screw plate is fixedly connected to one end of the bolt.

[0011] Furthermore, one end of the male pipe is fixedly connected to a pagoda connector one, and one end of the female pipe is fixedly connected to a pagoda connector two.

[0012] Furthermore, a pagoda connector three is fixedly connected to the outer peripheral wall of the mother tube. The space between the pagoda connector three and the sealing ring one and sealing ring two inside the mother tube is connected. A transparent sealing tube is fixedly sleeved at the opening of the pagoda connector three, and a sponge strip is sleeved inside the transparent sealing tube.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. In this utility model, by setting sealing ring one, sealing ring two, outer ring plate one, outer ring plate two, inner ring plate one and inner ring plate two, sealing ring one and sealing ring two have a double sealing function when they are squeezed at the same time, which greatly improves the anti-leakage effect and extends the sealing life.

[0015] 2. In this utility model, by setting ear plate one, ear plate two and bolts, the male and female pipes will not be subjected to circumferential torsional compressive force when they are inserted and squeezed, and the sealing rings one and two will not be damaged, making the seal more reliable when the male and female pipes are connected and separated multiple times.

[0016] 3. In this utility model, by setting up a pagoda connector, a transparent sealing tube, and a sponge strip, when the sealing ring fails and ink leakage occurs, the sponge strip will be soaked and discolored. Maintenance personnel can judge the failure of the sealing ring by the color and replace the connector in time, which has the advantage of ink leakage early warning. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of a leak-proof double-sealed ink circuit connection device for a coding printer according to the present invention.

[0018] Figure 2 for Figure 1 A diagram of the back;

[0019] Figure 3 This is a schematic diagram of the ink path connection device for a leak-proof double-sealed inkjet printer after an explosion.

[0020] In the diagram: 1. Male tube; 11. Outer ring plate one; 12. Outer ring plate two; 13. Front positioning ring platform; 14. Rear positioning ring platform; 15. Pagoda connector one; 2. Female tube; 21. Inner ring plate one; 22. Inner ring plate two; 23. Pagoda connector two; 24. Pagoda connector three; 3. Sealing ring one; 4. Sealing ring two; 5. Ear plate one; 6. Ear plate two; 7. Bolt; 71. Tightening plate; 8. Transparent sealing tube; 9. Sponge strip; 101. Threaded hole; 102. Through hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 3 This utility model provides a technical solution: a leak-proof, double-sealed ink path connection device for a coding printer, comprising a male pipe 1 and a female pipe 2 inserted into the male pipe 1. After the male pipe 1 and the female pipe 2 are connected, the ink in the ink tank is transported in the pipeline by a water pump. To prevent ink leakage at the connection between the male pipe 1 and the female pipe 2, a sealing structure needs to be installed between them. One end of the male pipe 1 is fixedly connected to a pagoda connector 15, and one end of the female pipe 2 is fixedly connected to a pagoda connector 23. The male pipe 1 and the female pipe 2 are respectively connected in series to the ink path connection pipe (a flexible hose or a soft but rigid pipe) through pagoda connector 15 and pagoda connector 23.

[0023] Specifically, the outer wall of the male pipe 1 is fixedly fitted with an outer ring plate 11 and an outer ring plate 12 located inside the female pipe 2. The outer ring plate 11 is positioned closer to the entrance of the male pipe 1 than the outer ring plate 12. The inner wall of the female pipe 2 is fixedly fitted with an inner ring plate 21 and an inner ring plate 22. The outer ring plate 11 is located outside the inner ring plate 21, and a sealing ring 3 is provided between them. The outer ring plate 12 is located outside the inner ring plate 22, and a sealing ring 4 is provided between them. Both ring 3 and sealing ring 4 are O-rings. Ear plate 5 is fixedly connected to the outer wall of male pipe 1, and ear plate 6 is fixedly connected to the outer wall of female pipe 2. Ear plate 5 is connected to ear plate 6 by bolt 7. When bolt 7 is tightened, the opposing compressive force between male pipe 1 and female pipe 2 increases, and sealing rings 3 and 4 are simultaneously compressed. The double-sealing structure formed by sealing rings 3 and 4 greatly improves the leak-proof effect and effectively prevents ink leakage from the joint between male pipe 1 and female pipe 2. Tightening sealing rings 3 and 4 by bolt 7 will not damage them.

[0024] Furthermore, the outer diameter of the outer ring plate 11 is smaller than the inner diameter of the inner ring plate 21 and larger than the inner diameter of the inner ring plate 22, and the outer diameter of the outer ring plate 22 is larger than the inner diameter of the inner ring plate 21. This arrangement allows the male pipe 1 and the female pipe 2 to be pulled out and separated after the bolt 7 is removed.

[0025] The male pipe 1 is externally fixedly fitted with a front positioning ring platform 13 located in front of the outer ring plate 11. The front positioning ring platform 13 is sleeved through the inner ring plate 22 with a clearance fit between the two. The front positioning ring platform 13 is used to support the positioning sealing ring 3. The male pipe 1 is also externally fixedly fitted with a rear positioning ring platform 14 located in front of the outer ring plate 22. The rear positioning ring platform 14 is sleeved through the inner ring plate 22 with a clearance fit between the two. The rear positioning ring platform 14 is used to support and position the sealing ring 4, so that the sealing ring 3 and the sealing ring 4 will not be misaligned when the male pipe 1 and the female pipe 2 are inserted, and the sealing ring 3 and the sealing ring 4 will be evenly squeezed.

[0026] In this embodiment, there are two ear plates 5 and two ear plates 6, which are symmetrically distributed relative to the male pipe 1 and the female pipe 2, respectively. One side of the ear plate 6 is provided with a threaded hole 101 that is screwed into the bolt 7. One side of the ear plate 5 is provided with a through hole 102 that is adapted to the bolt 7. One end of the bolt 7 is fixedly connected to a screwing plate 71. The bolt 7 can be rotated manually by screwing the screwing plate 71, which has the advantage of making it more convenient to tighten and loosen the bolt 7.

[0027] In this embodiment, a pagoda connector 24 is fixedly connected to the outer peripheral wall of the mother tube 2. The space between the pagoda connector 24 and the sealing rings 3 and 4 inside the mother tube 2 is connected. A transparent sealing tube 8 is fixedly sleeved at the opening of the pagoda connector 24. The transparent sealing tube 8 is a soft rubber tube. The transparent sealing tube 8 and the pagoda connector 24 are inserted by an interference fit. The outer end of the transparent sealing tube 8 is a blind end. A sponge strip 9 is sleeved inside the transparent sealing tube 8. When the sealing ring 3 fails to seal reliably and leaks, the ink will soak the sponge strip 9. The color of the sponge strip 9 can be used to determine whether a leak has occurred, which is convenient for maintenance personnel to repair in time before the ink leaks out.

[0028] Working principle: Taking the replacement of ink cartridge as an example, male pipe 1 and female pipe 2 are connected to the pipeline to be connected through their respective pagoda connector 15 and pagoda connector 23. As needed, clamps are installed on the pipeline outside pagoda connector 15 and pagoda connector 23. Then, male pipe 1 is inserted into female pipe 2. Then, the bolt 7 is held and screwed through the through hole 102 and threaded hole 101 to connect. When the bolt 7 is tightened, ear plate 15 and ear plate 26 will be squeezed. At this time, sealing ring 13 will be squeezed by inner ring plate 22 and outer ring plate 11, and sealing ring 24 will be squeezed by inner ring plate 21 and outer ring plate 22. At this time, sealing ring 13 and sealing ring 24 play a double sealing role.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A leak-proof, double-sealed ink path connection device for a coding printer, comprising a male pipe (1) and a female pipe (2) inserted into the male pipe (1), characterized in that, The outer wall of the male pipe (1) is fixedly fitted with an outer ring plate 1 (11) and an outer ring plate 2 (12) located inside the female pipe (2). The outer ring plate 1 (11) is positioned near the entrance of the male pipe (1) relative to the outer ring plate 2 (12). The inner wall of the female pipe (2) is fixedly fitted with an inner ring plate 1 (21) and an inner ring plate 2 (22). The outer ring plate 1 (11) is located outside the inner ring plate 1 (21) and a sealing ring 1 (3) is provided between them. The outer ring plate 2 (12) is located outside the inner ring plate 2 (22) and a sealing ring 2 (4) is provided between them. The outer wall of the male pipe (1) is fixedly connected with an ear plate 1 (5). The outer wall of the female pipe (2) is fixedly connected with an ear plate 2 (6). The ear plate 1 (5) is connected to the ear plate 2 (6) by bolts (7).

2. The leak-proof double-sealed inkjet printer ink path connection device according to claim 1, characterized in that: The outer diameter of the outer ring plate 1 (11) is smaller than the inner diameter of the inner ring plate 1 (21) and larger than the inner diameter of the inner ring plate 2 (22). The outer diameter of the outer ring plate 2 (12) is larger than the inner diameter of the inner ring plate 1 (21).

3. The leak-proof double-sealed inkjet printer ink path connection device according to claim 2, characterized in that: The male tube (1) is fixedly fitted with a front positioning ring platform (13) located in front of the outer ring plate (11). The front positioning ring platform (13) is fitted through the inner ring plate (22) with a gap fit. The male tube (1) is also fixedly fitted with a rear positioning ring platform (14) located in front of the outer ring plate (12). The rear positioning ring platform (14) is fitted through the inner ring plate (22) with a gap fit.

4. The leak-proof double-sealed inkjet printer ink path connection device according to claim 1, characterized in that: The number of ear plates one (5) and ear plates two (6) are both symmetrically distributed relative to the male pipe (1) and the female pipe (2). One side of ear plate two (6) is provided with a threaded hole (101) that is screwed into the bolt (7), and one side of ear plate one (5) is provided with a through hole (102) that is adapted to the bolt (7).

5. The leak-proof double-sealed inkjet printer ink path connection device according to claim 4, characterized in that: One end of the bolt (7) is fixedly connected to a screw plate (71).

6. The leak-proof double-sealed inkjet printer ink path connection device according to claim 1, characterized in that: One end of the male pipe (1) is fixedly connected to a pagoda connector one (15), and one end of the female pipe (2) is fixedly connected to a pagoda connector two (23).

7. The leak-proof double-sealed inkjet printer ink path connection device according to claim 1, characterized in that: The outer peripheral wall of the mother tube (2) is fixedly connected to the pagoda connector three (24). The space between the pagoda connector three (24) and the sealing ring one (3) and sealing ring two (4) inside the mother tube (2) is connected. The opening of the pagoda connector three (24) is fixedly fitted with a transparent sealing tube (8), and a sponge strip (9) is fitted inside the transparent sealing tube (8).

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