Leakage-proof hydraulic joint

Abstract

The utility model discloses a leakproof hydraulic joint which comprises a first connecting pipe, a bayonet is formed in an inner cavity in one end of the first connecting pipe, one end of the first connecting pipe is connected with the bayonet, a conical opening is formed in an inner cavity in the other end of the first connecting pipe, and one end of the first connecting pipe is connected with a first connector. A third gasket is arranged at the connecting position of the first connecting pipe and the first connector, the pipe thread screw is connected with the first connector, the second connector is connected with the pipe thread screw, the connecting position of the leakage-proof hydraulic connector is a key position for guaranteeing good sealing of a hydraulic system, and the first connector and the second connector are connected through close fit of internal threads and external threads. Tiny gaps between threads at the joint of the pipe thread screw are filled with sealing material tetrafluoroethylene rubber, liquid leakage is prevented, better tightness is achieved between the pipe thread screw and the threads on the surfaces of the first connector and the second connector through a third gasket and a fourth gasket, liquid leakage is further prevented, and the service life of the pipe thread screw is prolonged. The problem that an existing leakage-proof hydraulic connector is poor in sealing performance is solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic connector technology, specifically a leak-proof hydraulic connector. Background Technology

[0002] Leak-proof hydraulic couplings were developed primarily to address leakage problems in hydraulic systems. Hydraulic coupling devices are components used to connect hydraulic cylinders that make up a hydraulic system, or to connect various mechanical equipment, pipes, hoses, or pipelines, etc., which are critical or interconnected. Hydraulic coupling devices typically come in several forms: compression fittings, thin-tube flared fittings, and welded fittings.

[0003] Traditional leak-proof hydraulic couplings cannot guarantee the sealing performance of the joint. This coupling uses multiple gaskets and sealing PTFE adhesive to further seal the joint and improve its sealing performance. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof hydraulic connector to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof hydraulic connector, comprising a first connecting pipe, a first connecting pipe, a second connecting pipe, and a second connecting pipe. A bayonet is formed in the inner cavity of one end of the first connecting pipe, and one end of the first connecting pipe is connected to the bayonet. A tapered opening is provided in the inner cavity of the other end of the first connecting pipe. One end of the first connecting pipe is connected to a first interface. A third washer is provided at the connection between the first connecting pipe and the first interface. The first interface is connected to a pipe thread screw, and the pipe thread screw is connected to a second interface.

[0006] Preferably, a first washer is provided at the connection between the first connecting pipe and the bayonet, and the first connecting pipe is connected to the inner cavity of the bayonet.

[0007] Preferably, the second connecting pipe and the second connecting tube have the same structure as the first connecting pipe and the first connecting tube, and the first gasket and the second gasket are made of rubber.

[0008] Preferably, the first connecting pipe is fixedly connected to the first interface, the surface of the first interface is provided with external threads, the third washer has a notch in the middle, and the third washer is installed at the connection between the first connecting pipe and the first interface.

[0009] Preferably, the second connector is fixedly connected to the second interface, the surface of the second interface is provided with the same thread as the first interface, and the fourth washer is installed at the connection between the second connector and the second interface.

[0010] Preferably, the inner cavity of the pipe threaded screw is provided with an internal thread, and the pipe threaded screw is threadedly connected to the first interface and the second interface.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This leak-proof hydraulic connector, since the pipe body is used for oil transportation, has a first gasket and a second gasket to effectively prevent oil leakage. The bayonet design allows for easy disassembly of the first and second connecting pipes. The tapered opening at one end of the first and second connecting pipes facilitates liquid flow, thus achieving the purpose of preventing leakage of the connecting pipes.

[0013] 2. This leak-proof hydraulic connector is crucial for ensuring a good seal in the hydraulic system. The first interface and the second connector are connected by a tight fit between the internal and external threads. The tiny gaps between the threads at the pipe thread screw connection are filled with PTFE sealant to prevent liquid leakage. The third and fourth washers further enhance the tightness between the pipe thread screw and the threads on the surfaces of the first and second interfaces, further preventing liquid leakage and improving the safety of the connector. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the structure of this utility model;

[0016] Figure 3 This is an exploded view of the structure of this utility model;

[0017] Figure 4 This is an exploded view of the structure of this utility model.

[0018] In the diagram: 1. First connecting pipe; 2. Second connecting pipe; 3. First connecting pipe; 4. Second connecting pipe; 5. First washer; 6. Tapered opening; 7. Bayonet; 8. Second washer; 9. First interface; 10. Second interface; 11. Third washer; 12. Fourth washer; 13. Pipe thread screw; 14. Internal thread. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Please refer to Figure 1-4This utility model provides a technical solution: a leak-proof hydraulic connector, including a first connecting pipe 1, a first connecting pipe 3, a second connecting pipe 2 and a second connecting pipe 4. A bayonet 7 is opened in the inner cavity of one end of the first connecting pipe 3, and one end of the first connecting pipe 1 is connected to the bayonet 7. A tapered opening 6 is provided in the inner cavity of the other end of the first connecting pipe 3. One end of the first connecting pipe 3 is connected to a first interface 9. A third washer 11 is provided at the connection between the first connecting pipe 3 and the first interface 9. A pipe thread screw 13 is connected to the first interface 9, and a second interface 10 is connected to the pipe thread screw 13.

[0021] A first washer 5 is provided at the connection between the first connecting pipe 1 and the bayonet 7, and the first connecting pipe 1 is connected to the inner cavity of the bayonet 7.

[0022] Among them, the second connecting pipe 2 and the second connecting pipe 4 have the same structure as the first connecting pipe 1 and the first connecting pipe 3, and the first washer 5 and the second washer 8 are made of rubber.

[0023] In this embodiment, since the pipe body is used for oil transportation, the first gasket 5 and the second gasket 8 can effectively prevent leakage of oil. The design of the bayonet 7 can facilitate the disassembly of the first connecting pipe 1 and the second connecting pipe 2. The tapered opening 6 at one end of the first connecting pipe 3 and the second connecting pipe 4 can facilitate the flow of liquid and achieve the purpose of preventing leakage of the connecting pipe.

[0024] The first connector 3 is fixedly connected to the first interface 9. The surface of the first interface 9 is provided with external threads. The third washer 11 has a notch in the middle and is installed at the connection between the first connector 3 and the first interface 9.

[0025] The second connector 4 is fixedly connected to the second interface 10. The surface of the second interface 10 is provided with the same thread as the first interface 9. The fourth washer 12 is installed at the connection between the second connector 4 and the second interface 10.

[0026] The pipe thread screw 13 has an internal thread 14 in its inner cavity, and the pipe thread screw 13 is threaded to the first interface 9 and the second interface 10.

[0027] In this embodiment, the connection of the leak-proof hydraulic connector is a key part to ensure the good sealing of the hydraulic system. The first interface 9 and the second connector 10 are connected by the tight fit of the internal and external threads. The tiny gaps between the threads of the pipe thread screw 13 are filled with PTFE sealant to prevent liquid leakage. The third washer 11 and the fourth washer 12 make the pipe thread screw 13 and the threads on the surface of the first interface 9 and the second interface 10 have better tightness, further preventing liquid leakage and improving the safety of the connector.

[0028] Working principle: Since the pipe body is used for oil transportation, the first washer 5 and the second washer 8 effectively prevent oil leakage. The design of the bayonet 7 allows for easy disassembly of the first connecting pipe 1 and the second connecting pipe 2. The tapered opening 6 at one end of the first connecting pipe 3 and the second connecting pipe 4 facilitates liquid flow, achieving the purpose of preventing leakage in the connecting pipe. The connection of the leak-proof hydraulic joint is a key part to ensure good sealing of the hydraulic system. The first interface 9 and the second connector 10 are connected by the tight fit of the internal and external threads. The threaded connection of the pipe thread screw 13 uses PTFE tape to fill the tiny gaps between the threads to prevent liquid leakage. The third washer 11 and the fourth washer 12 provide better tightness between the pipe thread screw 13 and the threads on the surface of the first interface 9 and the second interface 10, further preventing liquid leakage and improving the safety of the joint.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leakproof hydraulic joint comprising a first connecting pipe (1), a first connector pipe (3), a second connecting pipe (2) and a second connector pipe (4), characterized in that: The first connecting pipe (3) is internally provided with a taper (6) at the other end, and the first connecting pipe (3) is internally provided with a first interface (9) at one end, and the first connecting pipe (3) is provided with a third gasket (11) at the connecting position of the first connecting pipe (3) and the first interface (9), and the first interface (9) is provided with a pipe threaded screw (13), and the pipe threaded screw (13) is connected with a second interface (10).

2. A liquid-tight hydraulic fitting according to claim 1, characterized in that: The first connecting pipe (1) is provided with a first gasket (5) at the connecting position of the first connecting pipe (1) and the first interface (9), and the first connecting pipe (1) is internally provided with a taper (6) at the other end.

3. A liquid-tight hydraulic fitting according to claim 2, characterized in that: The second connecting pipe (2) and the second connecting pipe (4) are the same as the first connecting pipe (1) and the first connecting pipe (3) in structure, and the first gasket (5) and the second gasket (8) are made of rubber.

4. A liquid-tight hydraulic fitting according to claim 1, characterized in that: The first connecting pipe (3) is fixedly connected with the first interface (9), and the first interface (9) is externally provided with a thread, and the third gasket (11) is internally provided with a notch at the middle part, and the third gasket (11) is arranged at the connecting position of the first connecting pipe (3) and the first interface (9).

5. A liquid-tight hydraulic fitting according to claim 1, characterized in that: The second connecting pipe (4) is fixedly connected with the second interface (10), and the second interface (10) is externally provided with a thread which is the same as that of the first interface (9), and the second connecting pipe (4) is provided with a fourth gasket (12) at the connecting position of the second connecting pipe (4) and the second interface (10).

6. A liquid-tight hydraulic fitting according to claim 1, characterized in that: The pipe threaded screw (13) is internally provided with an internal thread (14), and the pipe threaded screw (13) is threadedly connected with the first interface (9) and the second interface (10).

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