Gas circuit connector with high leakproofness

Abstract

The utility model discloses a gas circuit connector with high leakproofness, which relates to the technical field of gas circuit connecting structures and comprises a connector body, a first pipeline is fixedly mounted on one side of the connector body, a first rotating shaft is fixedly mounted on one side of the first pipeline, and the first rotating shaft is rotatably connected with a first limiting ring. A first mounting block is fixedly mounted on the side, away from the first rotating shaft, of the first limiting ring, a first threaded hole is formed in the outer side of the first mounting block, the first rotating shaft is rotationally connected with a second limiting ring, a second mounting block is fixedly mounted on the side, away from the first rotating shaft, of the second limiting ring, and a second threaded hole is formed in the outer side of the second mounting block. According to the gas circuit connector with the high leakproofness, through cooperation of the first rubber pad, the first gas pipe, the second rubber pad and the second pipeline, when the first gas pipe is located in the first pipeline, the joint of the first gas pipe and the first rubber pad is attached, the joint of the second pipeline and the connector is attached to the second rubber pad, gas is prevented from leaking and overflowing easily, and the leakproofness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline connection structures, in particular to a gas connector with high tightness. Background Technique

[0002] In the fields of industry, medical treatment, aerospace and automotive industries, etc., it is often necessary to circulate and transport gases. As a device for connecting gas pipelines, equipment and containers, gas connectors are widely used. In order to cope with different usage scenarios and environments, the types and models of gas connectors are also very diverse, such as quick connectors, threaded connectors, ferrule connectors and tubular connectors, etc.

[0003] Chinese Utility Model Patent Publication No.: CN 102537567 A, discloses: a one-way gas connector, which can realize functions such as one-way gas path transmission, quick locking, automatic closing and air leakage blocking after separation, and can meet the requirements of multi-functional high-pressure gas path transmission. And its structure is simple, easy to use and convenient to promote and use. However, this one-way gas connector is not easy to switch the gas, and the gas is likely to flow when not in use, with poor safety. Moreover, this one-way gas connector does not design the alignment and installation structure for the two ends of the gas pipes, which is not convenient for subsequent disassembly, assembly and maintenance, and has low practicability. Summary of the Invention

[0004] The purpose of the utility model is to provide a gas connector with high tightness, which can solve the problems of easy gas flow when not in use, poor safety, inconvenient subsequent disassembly, assembly and maintenance, and low practicability as mentioned in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An air circuit connector with high tightness, including a connector, on one side of the connector, a first pipe is fixedly installed, on one side of the first pipe, a first rotating shaft is fixedly installed, the first rotating shaft is rotatably connected to a first limiting ring, on the side of the first limiting ring away from the first rotating shaft, a first mounting block is fixedly installed, on the outer side of the first mounting block, a first threaded hole is provided, the first rotating shaft is rotatably connected to a second limiting ring, on the side of the second limiting ring away from the first rotating shaft, a second mounting block is fixedly installed, on the outer side of the second mounting block, a second threaded hole is provided, a bolt is threadedly connected to the inside of the second threaded hole, on the side of the connector away from the first pipe, a third threaded hole is provided, on the side of the connector away from the first pipe, a second pipe is provided, on the top of the second pipe, a limiting hole is provided, a valve is rotatably connected to the inside of the limiting hole, on the bottom of the valve, a ball valve is fixedly installed, a slot hole is provided through the outer side of the ball valve, on the side of the second pipe away from the connector, a mounting head is fixedly installed, on the side of the mounting head away from the second pipe, a second air pipe is inserted and installed, on one side of the second air pipe, a second rotating shaft is fixedly installed, on the outer side of the second rotating shaft, a third limiting ring is rotatably connected, on the side of the third limiting ring away from the second rotating shaft, a limiting block is fixedly installed, on the outer side of the second rotating shaft, a fourth limiting ring is rotatably connected, on the side of the fourth limiting ring away from the second rotating shaft, a limiting slot is provided.

[0006] Preferably, the first pipe is inserted and installed with the first air pipe through a positioning slot, and the outer side of the mounting head fits with the inner side of the second air pipe.

[0007] Preferably, the inner sides of the first limiting ring and the second limiting ring both fit with the outer side of the first pipe, and the bolt passes through the first threaded hole, the second threaded hole and extends to the bottom of the second mounting block.

[0008] Preferably, a gasket is threadedly connected to the side of the bolt away from the nut, a nut is threadedly connected to the side of the bolt away from the nut, an air hole is provided through the inside of the first pipe, a positioning slot is provided on one side of the first pipe, a first rubber pad is provided inside the positioning slot, a first air pipe is inserted and installed inside the positioning slot, on the side of the connector away from the first pipe, a second rubber pad is provided, the first rubber pad fits tightly with the outer side of the first air pipe, and the outer edge of the second rubber pad fits tightly with the inner side of the second pipe.

[0009] Preferably, the second pipe is threadedly connected to the connector, and the second pipe has a "cylindrical" structure.

[0010] Preferably, the ball valve has a "circular" structure, and the valve has a "T" - shaped structure.

[0011] Preferably, the limiting block is inserted and installed with the limiting slot, and the third limiting ring and the fourth limiting ring are located on the side of the mounting head close to the connector.

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

[0013] By cooperating the ball valve and the valve provided in the present utility model, when gas is transmitted through the second pipeline, by rotating the valve, the ball valve and the slot hole can rotate together. When one side of the slot hole faces the inner wall of the second pipeline, the gas stops flowing. When one side of the slot hole faces the through ports at both ends of the second pipeline, the gas can flow, which is convenient for controlling the gas transmission, ensuring that the gas does not flow when not in use, and guaranteeing the safety of the connector and the second pipeline;

[0014] By cooperating the positioning slot and the first air pipe in the present utility model, the first air pipe can be positioned. Cooperating with the bolt, the first mounting block and the second mounting block, the first air pipe can be fixed inside the first pipeline. Then, insert the mounting head into the second air pipe. Cooperating with the third limiting ring and the fourth limiting ring, the mounting head can be limited. At the same time, insert the limiting block into the limiting slot, so that the third limiting ring and the fourth limiting ring can be clamped, thereby quickly fixing the second air pipe and the mounting head. It can not only achieve alignment and quick installation, but also facilitate subsequent disassembly, assembly and maintenance, improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic three-dimensional structure diagram of the present utility model Figure 1 ;

[0016] Figure 2 is a schematic three-dimensional structure diagram of the present utility model Figure 2 ;

[0017] Figure 3 is a schematic diagram of the split structure of the first limiting ring and the second limiting ring of the present utility model;

[0018] Figure 4 is a schematic diagram of the split structure of the second pipeline and the connector of the present utility model;

[0019] Figure 5 is a schematic diagram of the installation structure of the third limiting ring and the fourth limiting ring of the present utility model.

[0020] Wherein: 1. Connector; 2. First pipeline; 3. First rotating shaft; 4. First limiting ring; 5. First mounting block; 6. First threaded hole; 7. Second limiting ring; 8. Second mounting block; 9. Second threaded hole; 10. Bolt; 11. Gasket; 12. Nut; 13. Air hole; 14. Positioning slot; 15. First rubber pad; 16. First air pipe; 17. Third threaded hole; 18. Second rubber pad; 19. Second pipeline; 20. Limiting hole; 21. Valve; 22. Ball valve; 23. Slot hole; 24. Mounting head; 25. Second air pipe; 26. Second rotating shaft; 27. Third limiting ring; 28. Limiting block; 29. Fourth limiting ring; 30. Limiting slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0022] Please refer to Figures 1-5 , as shown in the figure, a gas path connector with high tightness includes a connector 1. On one side of the connector 1, a first pipe 2 is fixedly installed. On one side of the first pipe 2, a first rotating shaft 3 is fixedly installed. The first rotating shaft 3 is rotatably connected to a first limiting ring 4. On the side of the first limiting ring 4 away from the first rotating shaft 3, a first mounting block 5 is fixedly installed. On the outer side of the first mounting block 5, a first threaded hole 6 is opened. The first rotating shaft 3 is rotatably connected to a second limiting ring 7. On the side of the second limiting ring 7 away from the first rotating shaft 3, a second mounting block 8 is fixedly installed. On the outer side of the second mounting block 8, a second threaded hole 9 is opened. A bolt 10 is threadedly connected to the inner side of the second threaded hole 9. On the side of the connector 1 away from the first pipe 2, a third threaded hole 17 is opened. On the side of the connector 1 away from the first pipe 2, a second pipe 19 is provided. On the top of the second pipe 19, a limiting hole 20 is opened. A valve 21 is rotatably connected to the inner side of the limiting hole 20. A ball valve 22 is fixedly installed at the bottom of the valve 21. A slot hole 23 is penetrated through the outer side of the ball valve 22. On the side of the second pipe 19 away from the connector 1, a mounting head 24 is fixedly installed. A second air pipe 25 is inserted and installed on the side of the mounting head 24 away from the second pipe 19. On one side of the second air pipe 25, a second rotating shaft 26 is fixedly installed. A third limiting ring 27 is rotatably connected to the outer side of the second rotating shaft 26. On the side of the third limiting ring 27 away from the second rotating shaft 26, a limiting block 28 is fixedly installed. A fourth limiting ring 29 is rotatably connected to the outer side of the second rotating shaft 26. A limiting groove 30 is opened on the side of the fourth limiting ring 29 away from the second rotating shaft 26.

[0023] Please refer to Figures 1-3 , as shown in the figure, the first pipe 2 and the first air pipe 16 are inserted and installed through the positioning groove 14, and the outer side of the mounting head 24 fits with the inner side of the second air pipe 25.

[0024] In this embodiment: through the cooperation of the positioning groove 14 and the first air pipe 16, when installing the first pipe 2 and the first air pipe 16, the first air pipe 16 can be inserted into the positioning groove 14, so as to position the first air pipe 16, limit the first air pipe 16 inside the first pipe 2, prevent the first air pipe 16 from having a vertical displacement during installation, and facilitate subsequent installation.

[0025] Working principle: When installing pipe 1-2 and air pipe 1-16, insert air pipe 1-16 into positioning groove 14 so that air pipe 1-16 can be limited inside pipe 1-2. By rotating limiting ring 1-4 and limiting ring 2-7, make mounting block 1-5 and mounting block 2-8 approach each other. At this time, insert bolt 10 into threaded hole 1-6 and threaded hole 2-9 and extend to the bottom of mounting block 2-8. With the cooperation of gasket 11 and nut 12, mounting block 1-5 and mounting block 2-8 can be closely attached, further fixing pipe 1-2 and air pipe 1-16. Subsequently, insert pipe 2-19 into connector 1 and tighten it so that pipe 2-19 can be fixedly installed inside connector 1. After inserting mounting head 24 into the inside of air pipe 2-25, by rotating limiting ring 3-27 and limiting ring 4-29, limiting ring 3-27 and limiting ring 4-29 limit mounting head 24. By inserting limiting block 28 into limiting groove 30, limiting ring 3-27 and limiting ring 4-29 can be clamped, so that limiting ring 3-27 and limiting ring 4-29 are attached to the side of mounting head 24 close to connector 1. When gas is transmitted through pipe 2-19, by rotating valve 21, ball valve 22 and slot hole 23 rotate together. When one side of slot hole 23 faces the inner wall of pipe 2-19, the gas stops flowing. When one side of slot hole 23 faces the through ports at both ends of pipe 2-19, the gas can flow. Embodiment

[0026] Please refer to Figures 1-3 , this embodiment further illustrates Embodiment 1. In the figure, the inner sides of limiting ring 1-4 and limiting ring 2-7 are both in contact with the outer side of pipe 1-2. Bolt 10 passes through threaded hole 1-6, threaded hole 2-9 and extends to the bottom of mounting block 2-8.

[0027] In this embodiment: Through the cooperation of the provided limiting ring 1-4 and limiting ring 2-7, after inserting air pipe 1-16 into positioning groove 14, by rotating limiting ring 1-4 and limiting ring 2-7, make mounting block 1-5 and mounting block 2-8 approach each other. At this time, insert bolt 10 into threaded hole 1-6 and threaded hole 2-9 and reach the bottom of mounting block 2-8. With the cooperation of gasket 11 and nut 12, mounting block 1-5 and mounting block 2-8 can be locked, further fixing pipe 1-2 and air pipe 1-16, avoiding the horizontal displacement of air pipe 1-16 and improving stability.

[0028] Please refer to Figure 3 and 4, in the illustration, a gasket 11 is threadedly connected to the side of the bolt 10 away from the nut, and a nut 12 is threadedly connected to the side of the bolt 10 away from the nut. An air hole 13 is penetrated through the inner side of the first pipe 2. A positioning groove 14 is formed on one side of the first pipe 2. A first rubber pad 15 is arranged inside the positioning groove 14. A first air pipe 16 is inserted and installed inside the positioning groove 14. A second rubber pad 18 is arranged on the side of the connector 1 away from the first pipe 2. The first rubber pad 15 is in close fit with the outer side of the first air pipe 16, and the outer edge of the second rubber pad 18 is in close fit with the inner side of the second pipe 19.

[0029] In this embodiment: By the cooperation of the first rubber pad 15, the first air pipe 16, the second rubber pad 18 and the second pipe 19, when the first air pipe 16 is inside the first pipe 2, the connection part is in fit with the first rubber pad 15, and the connection part between the second pipe 19 and the connector 1 is in fit with the second rubber pad 18, preventing gas from easily leaking out and improving the sealing performance.

[0030] Please refer to Figure 4 , in the illustration, the second pipe 19 and the connector 1 are threadedly connected, and the second pipe 19 has a "cylindrical" structure.

[0031] In this embodiment: By the cooperation of the second pipe 19 and the connector 1, the second pipe 19 can be inserted into the connector 1, and then the second pipe 19 is tightened, so that the second pipe 19 is fixedly installed inside the connector 1, facilitating the disassembly, assembly and maintenance of the second pipe 19 subsequently and prolonging the service life.

[0032] Please refer to Figure 1 , 2 , 4 and 5, in the illustration, the ball valve 22 has a "round" structure, and the valve 21 has a "T" - shaped structure.

[0033] In this embodiment: By the cooperation of the ball valve 22 and the valve 21, when gas is transmitted through the second pipe 19, by rotating the valve 21, the ball valve 22 and the slot 23 are driven to rotate together. When one side of the slot 23 faces the inner wall of the second pipe 19, the gas cannot flow through. When one side of the slot 23 faces the two end openings of the second pipe 19, the gas can flow through, which can control the gas transmission, ensure that the gas does not flow when not in use, and guarantee the safety of the connector 1 and the second pipe 19.

[0034] Please refer to Figure 1 , 2 and 5, in the illustration, the limiting block 28 and the limiting groove 30 are inserted and installed, and the third limiting ring 27 and the fourth limiting ring 29 are located on the side of the mounting head 24 close to the connector 1.

[0035] In this embodiment: By the cooperation of the third limiting ring 27 and the fourth limiting ring 29, after the mounting head 24 is inserted into the inner side of the second air pipe 25, rotate the third limiting ring 27 and the fourth limiting ring 29 so that the third limiting ring 27 and the fourth limiting ring 29 limit the mounting head 24 to prevent the mounting head 24 from displacing in the horizontal direction and avoid the detachment of the mounting head 24 from the second air pipe 25. Cooperating with the limiting block 28 and the limiting groove 30, insert the limiting block 28 into the limiting groove 30, which can latch the third limiting ring 27 and the fourth limiting ring 29, further improving the stability of the mounting head 24 and the second air pipe 25. At the same time, it is also convenient for subsequent disassembly, assembly and maintenance, improving the practicability.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including" - "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process - method - article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process - method - article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air path connector with high tightness, comprising a connector (1), characterized in that: One side of the connector (1) is fixedly installed with a first pipe (2). One side of the first pipe (2) is fixedly installed with a first rotating shaft (3). The first rotating shaft (3) is rotatably connected with a first limiting ring (4). One side of the first limiting ring (4) away from the first rotating shaft (3) is fixedly installed with a first mounting block (5). A first threaded hole (6) is formed in the outer side of the first mounting block (5). The first rotating shaft (3) is rotatably connected with a second limiting ring (7). One side of the second limiting ring (7) away from the first rotating shaft (3) is fixedly installed with a second mounting block (8). A second threaded hole (9) is formed in the outer side of the second mounting block (8). A bolt (10) is threadedly connected to the inner side of the second threaded hole (9). A third threaded hole (17) is formed in the side of the connector (1) away from the first pipe (2). A second pipe (19) is arranged on the side of the connector (1) away from the first pipe (2). A limiting hole (20) is formed in the top of the second pipe (19). A valve (21) is rotatably connected to the inner side of the limiting hole (20). A ball valve (22) is fixedly installed at the bottom of the valve (21). A slot hole (23) is formed through the outer side of the ball valve (22). A mounting head (24) is fixedly installed on the side of the second pipe (19) away from the connector (1). A second air pipe (25) is inserted and installed on the side of the mounting head (24) away from the second pipe (19). One side of the second air pipe (25) is fixedly installed with a second rotating shaft (26). A third limiting ring (27) is rotatably connected to the outer side of the second rotating shaft (26). A limiting block (28) is fixedly installed on the side of the third limiting ring (27) away from the second rotating shaft (26). A fourth limiting ring (29) is rotatably connected to the outer side of the second rotating shaft (26). A limiting slot (30) is formed in the side of the fourth limiting ring (29) away from the second rotating shaft (26).

2. The air path connector with high tightness according to claim 1, characterized in that: The first pipe (2) and the first air pipe (16) are inserted and installed through a positioning slot (14). The outer side of the mounting head (24) is in close fit with the inner side of the second air pipe (25).

3. The air path connector with high tightness according to claim 2, characterized in that: The inner sides of the first limiting ring (4) and the second limiting ring (7) are both in close fit with the outer side of the first pipe (2). The bolt (10) passes through the first threaded hole (6), the second threaded hole (9) and extends to the bottom of the second mounting block (8).

4. The air path connector with high tightness according to claim 3, characterized in that: A gasket (11) is threadedly connected to the side of the bolt (10) away from the nut. A nut (12) is threadedly connected to the side of the bolt (10) away from the nut. An air hole (13) is formed through the inner side of the first pipe (2). A positioning slot (14) is formed in one side of the first pipe (2). A first rubber pad (15) is arranged in the inner side of the positioning slot (14). A first air pipe (16) is inserted and installed in the inner side of the positioning slot (14). A second rubber pad (18) is arranged on the side of the connector (1) away from the first pipe (2). The first rubber pad (15) is in close fit with the outer side of the first air pipe (16). The outer edge of the second rubber pad (18) is in close fit with the inner side of the second pipe (19).

5. The air path connector with high tightness according to claim 4, characterized in that: The second pipe (19) is threadedly connected to the connector (1). The second pipe (19) has a "cylindrical" structure.

6. The air path connector with high tightness according to claim 5, wherein: The ball valve (22) has a "round" structure, and the valve (21) has a "T" - shaped structure.

7. The air path connector with high tightness according to claim 6, characterized in that: The limiting block (28) is inserted and installed in the limiting groove (30), and the third limiting ring (27) and the fourth limiting ring (29) are located on the side of the mounting head (24) close to the connector (1).

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