Anti-falling hydraulic pipe fitting

Abstract

The utility model provides an anti-falling hydraulic pipe fitting, and belongs to the field of pipe fittings. The problem that the joint of an existing hydraulic pipe is prone to loosening and falling off is solved. The anti-falling hydraulic pipe fitting comprises a hydraulic pipe body, a connecting structure is arranged at the connecting end of the hydraulic pipe body, the connecting structure comprises a connecting lining, a connecting base, a hoop and a clamping piece, the connecting lining is of a T-shaped structure and is of an integrally-formed structure to be arranged in the hydraulic pipe body, a clamping groove is formed in the hoop, and the clamping piece is of a concave structure. A mounting ring groove is formed in the inner wall of the connecting base, an opening groove is further formed in the connecting base, and a rubber sealing ring is arranged in the connecting lining. The sealing structure has the advantages of being good in stability, high in sealing strength and long in service life.

Description

Technical Field

[0001] The utility model belongs to the field of pipe fittings, and relates to a hydraulic pipe fitting, in particular to an anti-falling hydraulic pipe fitting. Background Art

[0002] At present, with the continuous development of science and technology, the technology of pipe joints has been continuously improved. It is widely used in the connection of pipe joints in hydraulic systems in industries such as aviation, automobiles, mining machinery, and mold machinery, and is also widely used in daily life. However, hydraulic pipe fittings in hydraulic oil circuits are subject to high pressure, and the shapes of hydraulic pipes are complex. Some hydraulic pipe joints are inconvenient to connect, and the connection positions of the pipe joints are prone to loosening and cannot withstand excessive pressure. After long-term use, the existing hydraulic pipe joints will have poor sealing performance and unreliability. At the same time, it is inconvenient to be affected by the structure during disassembly. Summary of the invention

[0003] The utility model aims to provide an anti-falling hydraulic pipe fitting to solve the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: an anti-falling hydraulic pipe fitting, comprising a hydraulic pipe body, characterized in that a connecting structure for improving the connection strength and preventing loosening and falling off is provided at the connecting end of the hydraulic pipe body;

[0005] The connection structure includes a connection bushing threadedly connected to a corresponding pipe fitting, a connection seat fixedly connected to a connection end of a hydraulic pipe body, a clamp used to fasten the corresponding pipe fitting after connection, and a clamping piece located in the connection seat and cooperating with the clamp;

[0006] The connecting bushing is arranged in a T-shaped structure and is an integrally formed structure arranged in the main body of the hydraulic pipe;

[0007] The clamp is provided with a clamping groove for the clamping member to engage with the concave and convex clamping;

[0008] The clamping piece is arranged in a concave structure and is pressed and matched with the clamping groove on the clamp;

[0009] The inner wall of the connection seat is provided with a mounting ring groove for the clamping piece to be installed therein, and the connection seat is also provided with an opening groove for the clamp to be pressed into and to cooperate with the clamping piece;

[0010] A rubber sealing ring for improving sealing strength is arranged inside the connecting bushing.

[0011] In the above-mentioned anti-drop hydraulic pipe fitting, the side wall of the clamping groove and the corresponding side wall of the clamping piece are both arranged in an inclined structure, and the inner side of the clamp is tightly fitted and fixed to the corresponding pipe fitting through mutual clamping and extrusion.

[0012] In the above-mentioned anti-drop hydraulic pipe fitting, the clamping member is provided with a sealing member which cooperates with the inner side of the clamp and is used to improve the sealing strength. The sealing member is arranged in an arc structure and is fixed to the inner wall of the clamp.

[0013] In the above-mentioned anti-drop hydraulic pipe fitting, the two side walls of the clamp are axially extended outward to be provided with a pulling portion for easy disassembly and pulling, and through grooves are provided on both sides of the opening groove to facilitate axial limiting cooperation of the pulling portion.

[0014] In the above-mentioned anti-falling hydraulic pipe fitting, the clamp, the clamping part and the inner wall structure of the connecting seat are squeezed and matched with each other to achieve the tight fit of the corresponding pipe fittings after connection, and axially limit the corresponding pipe fittings to prevent displacement and loosening due to excessive pressure in the hydraulic pipe body.

[0015] Compared with the prior art, the anti-falling hydraulic pipe fitting has a simple structure. It uses the coordination of clamps, connectors and the inner wall structure of the hydraulic pipe body to further enhance the sealing performance between the joints. At the same time, it uses the extruded concave-convex matching structure and the internal and external threads to enhance the connection effect. It has stable installation and can prevent loosening and falling due to excessive oil impact strength and pressure, thereby achieving high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the anti-falling hydraulic pipe fitting.

[0017] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamp and the clamping piece of the anti-drop hydraulic pipe fitting.

[0019] In the figure, 1, hydraulic pipe body; 2, connecting bushing; 3, connecting seat; 4, clamp; 5, clamping piece; 6, clamping groove; 7, mounting ring groove; 8, opening groove; 9, rubber sealing ring; 10, sealing piece; 11, lifting part; 12, through groove. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1 , Figure 2 , Figure 3As shown, the anti-falling hydraulic pipe fitting comprises a hydraulic pipe body 1, and a connecting structure for improving the connection strength and preventing loosening and falling is arranged at the connecting end of the hydraulic pipe body 1, the connecting structure comprises a connecting bushing 2 threadedly connected to the corresponding pipe fitting, a connecting seat 3 fixedly connected to the connecting end of the hydraulic pipe body 1, a clamp 4 for tightening the corresponding pipe fitting after connection, and a clamping member 5 located in the connecting seat 3 and cooperating with the clamp 4. The connecting bushing 2 is arranged in a T-shaped structure and is an integrally formed structure arranged in the hydraulic pipe body 1. A clamping groove 6 for the clamping member 5 to be engaged with the clamping member 5 is provided on the clamp 4, and the clamping member 5 is arranged in a concave structure and is extruded and matched with the clamping groove 6 on the clamp 4. An installation ring groove 7 for the clamping member 5 to be installed is provided on the inner wall of the connecting seat 3, and an open groove 8 for the clamp 4 to be pressed into and cooperate with the clamping member 5 is also provided on the connecting seat 3. A rubber sealing ring 9 for improving the sealing strength is arranged in the connecting bushing 2.

[0022] The above structure is simple, and the sealing performance between the joints is further enhanced by the cooperation of the clamp 4, the clamping piece 5 and the inner wall structure of the hydraulic pipe body 1. At the same time, the connection effect is enhanced by the extrusion concave-convex matching structure and the internal and external threads. The installation is stable and it can also prevent loosening and falling off due to excessive oil impact strength and pressure, thereby achieving high stability.

[0023] After the corresponding pipe fitting is connected to the connecting bushing 2 through the internal and external threads, the clamp 4 is manually pressed into the connecting seat 3 through the open groove 8, and is squeezed and matched with the clamping piece 5 so that the inner wall of the clamp 4 is tightly fitted to the corresponding pipe fitting, and cooperates with the sealing member 10 structure to achieve sealing of the connection of the corresponding pipe fitting. The clamp 4 cooperates with the open groove 8 structure of the connecting seat 3, which can effectively prevent the corresponding pipe fitting from loosening and causing the pipe fitting to fall off, and limit its axial position.

[0024] To further elaborate, in order to improve the strength of the squeeze-fit connection, the side walls of the clamping groove 6 and the corresponding side walls of the clamping member 5 are both arranged in an inclined structure, and the inner side of the clamp 4 is tightly fitted and fixed to the corresponding pipe fitting through mutual clamping and squeezing.

[0025] To further elaborate, in order to improve the sealing strength of the connection, a seal 10 is provided on the clamping member 5 to cooperate with the inner side of the clamp 4 and to improve the sealing strength. The seal 10 is arranged in an arc structure and is fixed to the inner wall of the clamp 4.

[0026] To elaborate, in order to facilitate later disassembly and maintenance, the two side walls of the clamp 4 extend axially outward to provide a lifting portion 11 for easy disassembly and lifting, and through grooves 12 are provided on both sides of the opening groove 8 to facilitate axial limiting cooperation of the lifting portion 11.

[0027] Preferably, the clamp 4, the connector 5 and the inner wall structure of the connecting seat 3 are squeezed and matched with each other to achieve a tight fit of the corresponding pipes after connection, and axially limit the corresponding pipes to prevent displacement and loosening due to excessive pressure in the hydraulic pipe body 1.

[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0029] Although the terms such as hydraulic pipe body 1, connecting bushing 2, connecting seat 3, clamp 4, clamping member 5, clamping groove 6, mounting ring groove 7, opening groove 8, rubber sealing ring 9, sealing member 10, lifting portion 11, through groove 12 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An anti-drop hydraulic pipe fitting, comprising a hydraulic pipe body (1), characterized in that: The connecting end of the hydraulic pipe body (1) is provided with a connecting structure for improving the connection strength and preventing loosening and falling off; The connection structure comprises a connection bushing (2) threadedly connected to a corresponding pipe fitting, a connection seat (3) fixedly connected to a connection end of a hydraulic pipe body (1), a clamp (4) used to fasten the corresponding pipe fitting after connection, and a clamping piece (5) located in the connection seat (3) and cooperating with the clamp (4); The connecting bushing (2) is arranged in a T-shaped structure and is an integrally formed structure arranged in the hydraulic pipe body (1); The clamp (4) is provided with a clamping groove (6) for the clamping member (5) to engage with in a concave-convex clamping manner. The clamping piece (5) is arranged in a concave structure and is pressed and matched with the clamping groove (6) on the clamp (4); The inner wall of the connection seat (3) is provided with a mounting ring groove (7) for the clamping member (5) to be mounted therein, and the connection seat (3) is also provided with an opening groove (8) for the clamp (4) to be pressed into and to cooperate with the clamping member (5); A rubber sealing ring (9) for improving sealing strength is arranged inside the connecting bushing (2).

2. The anti-falling hydraulic pipe fitting according to claim 1, characterized in that: The side wall of the clamping groove (6) and the corresponding side wall of the clamping piece (5) are both arranged in an inclined structure, and the inner side of the clamp (4) is tightly fitted and fixed to the corresponding pipe fitting by mutual clamping and extrusion.

3. The anti-falling hydraulic pipe fitting according to claim 1, characterized in that: The clamping member (5) is provided with a sealing member (10) which cooperates with the inner side of the clamp (4) and is used to improve the sealing strength. The sealing member (10) is arranged in an arc structure and is fixed to the inner wall of the clamp (4).

4. The anti-falling hydraulic pipe fitting according to claim 1, characterized in that: The two side walls of the clamp (4) are axially extended outwards to be provided with a lifting portion (11) for facilitating removal and lifting, and through grooves (12) are provided on both sides of the slot of the opening slot (8) to facilitate axial limiting cooperation of the lifting portion (11).

5. The anti-falling hydraulic pipe fitting according to claim 1, characterized in that: The clamp (4), the clamping piece (5) and the inner peripheral wall structure of the connecting seat (3) are mutually squeezed and matched to achieve a tight fit of the corresponding pipe fittings after connection, and to axially limit the corresponding pipe fittings to prevent displacement and loosening due to excessive pressure in the hydraulic pipe body (1).

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