Corrugated pipe rotating joint

Abstract

The utility model provides a corrugated pipe rotating joint which comprises a rotating joint main body, an arc-shaped groove is formed in the outer wall of the rotating joint main body, a sealing gasket is arranged above the rotating joint main body, a rotating sealing column is arranged at the upper end of the sealing gasket, and the rotating sealing column is connected with the arc-shaped groove. The corrugated pipe universal rotating joint comprises a corrugated pipe universal rotating joint body, a rotating sealing column is arranged at the upper end of the corrugated pipe universal rotating joint body, a thickened column body is arranged at the upper end of the rotating sealing column, a thickened nut is arranged at the upper end of the thickened column body, and a mounting stud is movably connected to the inner wall of the thickened nut. The cable and the corrugated pipe are protected against damage, the inner material is made of a PA66 new material, the connector can be more resistant to aging and high and low temperature, small in shrinkage proportion, precise and waterproof in structure, not prone to tripping and thread loosening and long in service life, the rotary connector body can be rotated during operation, meanwhile, the sealing gasket connected to the upper end of the rotary connector body is connected with the sealing gasket, and the service life of the connector is prolonged. And the parts are tightly attached.

Description

Technical Field

[0001] The utility model relates to a bellows rotary joint, belonging to the technical field of electrical engineering. Background Art

[0002] The main body of the bellows universal rotary joint is widely used in electrical engineering, various mechanical equipment, and electric locomotives. It has the function of protecting the bellows threading and wire protection.

[0003] At present, the practicality of the ordinary bellows universal rotary joint body and the upgraded bellows universal rotary joint body on the market is quite different. The upgraded version has a long service life and strong functionality.

[0004] When the existing bellows joint is in use, the threaded connection is not tight enough, so the rotating structure is easily broken after a short period of use, resulting in reduced safety of the protection line. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a bellows rotary joint to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the utility model is implemented by the following technical scheme: a bellows rotary joint, comprising a rotary joint body, an outer wall of the rotary joint body is provided with an arc groove, a sealing gasket is arranged above the rotary joint body, and a rotary sealing column is arranged at the upper end of the sealing gasket;

[0007] The upper end of the rotary sealing column is provided with a thickened column body, the upper end of the thickened column body is provided with a thickened nut, and the inner wall of the thickened nut is movably connected with a mounting stud.

[0008] Preferably, the rotary joint body is made of EPDM rubber, and the arc grooves are evenly distributed around the outer wall of the rotary joint body.

[0009] Preferably, the central axis of the rotary joint body and the sealing gasket coincide with each other, and the inner wall surface of the rotary joint body and the outer wall surface of the sealing gasket are tightly fitted.

[0010] Preferably, the central axis of the rotating sealing column and the thickened and thickened column coincide with each other, and the outer wall of the thickened and thickened column is provided with a protruding block.

[0011] Preferably, the thickened nut is a hexagonal nut, and the outer wall of the thickened nut forms an arc-shaped groove.

[0012] Preferably, a thread groove is formed on the outer wall of the mounting stud, the mounting stud is connected to the thickened and enlarged column by hot melting, and a docking hole is provided inside the mounting stud.

[0013] Preferably, the docking hole coincides with a central axis of the mounting stud, and the docking hole runs through the interior of the mounting stud.

[0014] Beneficial effects of the utility model:

[0015] Compared with the prior art, the bellows rotary joint protects the cable and the bellows from damage through the bellows universal rotary joint body. The internal material is made of PA66 new material, which can make the joint more resistant to aging, high and low temperature resistance, small shrinkage ratio, precise and waterproof structure, not easy to disengage and slip, and has a long service life. During operation, the rotary joint body can be rotated, and the sealing gasket connected to the upper end is connected to it to make them fit tightly to avoid the generation of gaps. At the same time, the thickened and thickened column is rotated to prevent cracking during operation and increase the strength during operation. The thickened nut connected to the upper end is rotated hexagonally to make the installation operation closer to avoid slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a schematic diagram of the main view of a bellows rotary joint of the utility model;

[0018] Figure 2 This is a front view schematic diagram of a bellows rotary joint of the utility model;

[0019] Figure 3 This is a top view schematic diagram of a bellows rotary joint of the utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of a bellows rotary joint of the utility model;

[0021] In the figure: 1. Rotary joint body; 2. Arc groove; 3. Sealing gasket; 4. Rotary sealing column; 5. Thickened and thickened column; 6. Thickened nut; 7. Mounting stud; 8. Docking hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Embodiment 1

[0024] As attached Figures 1 to 4A bellows rotary joint shown in the figure comprises a rotary joint body 1, an arc groove 2 is formed on the outer wall of the rotary joint body 1, a sealing gasket 3 is arranged above the rotary joint body 1, and a rotary sealing column 4 is arranged at the upper end of the sealing gasket 3;

[0025] The upper end of the rotary sealing column 4 is provided with a thickened column 5 , and the upper end of the thickened column 5 is provided with a thickened nut 6 , and the inner wall of the thickened nut 6 is movably connected with a mounting stud 7 .

[0026] Among them: when operating the bellows rotary joint, the rotary joint body 1 can be held for operation and connection, and the arc groove 2 generated on the surface is conducive to the generation of contact friction during rotation, which is convenient for rotary installation operation. At the same time, when the joint is used, the sealing gasket 3 at the upper end cooperates with it to make it fit tightly, and at the same time, the thickened and thickened column 5 is rotated to prevent cracking during operation and increase the strength during operation. The thickened nut 6 connected at the upper end is rotated hexagonally to make it closer during installation operation to prevent its teeth from slipping out.

[0027] Embodiment 2

[0028] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0029] As a preferred embodiment, the rotary joint body 1 is made of EPDM rubber, the arc grooves 2 are evenly distributed around the outer wall of the rotary joint body 1, the central axis of the rotary joint body 1 and the sealing gasket 3 coincide with each other, the inner wall surface of the rotary joint body 1 and the outer wall surface of the sealing gasket 3 fit tightly together, the rotary sealing column 4 and the central axis of the thickened and thickened column 5 coincide with each other, and the outer wall of the thickened and thickened column 5 is provided with a protruding block;

[0030] Furthermore, when operating, the rotary joint body 1 can be directly held for operation and installation. It is made of EPDM rubber and is connected with a thickened column 5 to increase the thickness of the outer shell, making it more compact, waterproof and anti-aging.

[0031] As a preferred embodiment, the thickened nut 6 is a hexagonal nut, the outer wall of the thickened nut 6 forms an arc-shaped groove, the outer wall of the mounting stud 7 forms a threaded groove, the mounting stud 7 is connected to the thickened and thickened column 5 by hot melting, and a docking hole 8 is opened inside the mounting stud 7, the docking hole 8 coincides with the central axis of the mounting stud 7, and the docking hole 8 runs through the inside of the mounting stud 7;

[0032] Furthermore, when operating the joint, the docking hole 8 and the mounting stud 7 are positioned and docked, and then rotationally connected, and the thickened nut 6 is simultaneously docked with a wrench to facilitate rotation and installation connection.

[0033] The working principle of the utility model is as follows:

[0034] First, the rotary joint body 1 can be held for operation and connection. The arc groove 2 generated on the surface is conducive to the generation of contact friction during rotation, which is convenient for rotary installation operations. Then the internal docking hole 8 and the installation stud 7 are positioned for threaded rotary installation and connection. At the same time, when the joint is used, the sealing gasket 3 at the upper end cooperates with it, and the thickened column 5 is rotated to prevent cracking during operation, and the thickened nut 6 connected at the upper end is rotated hexagonally, and then a wrench is used to rotate and fix it for installation operations.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bellows rotary joint, comprising a rotary joint body (1), characterized in that: An arc-shaped groove (2) is provided on the outer wall of the rotary joint body (1), a sealing gasket (3) is provided above the rotary joint body (1), and a rotary sealing column (4) is provided at the upper end of the sealing gasket (3); The upper end of the rotary sealing column (4) is provided with a thickened column (5), the upper end of the thickened column (5) is provided with a thickened nut (6), and the inner wall of the thickened nut (6) is movably connected with a mounting stud (7).

2. The bellows rotary joint according to claim 1, characterized in that: The rotary joint body (1) is made of EPDM rubber, and the arc-shaped grooves (2) are evenly distributed around the outer wall of the rotary joint body (1).

3. The bellows rotary joint according to claim 1, characterized in that: The central axes of the rotary joint body (1) and the sealing gasket (3) coincide with each other, and the inner wall surface of the rotary joint body (1) and the outer wall surface of the sealing gasket (3) fit tightly together.

4. The bellows rotary joint according to claim 1, characterized in that: The central axis of the rotating sealing column (4) coincides with the central axis of the thickened and thickened column (5), and the outer wall of the thickened and thickened column (5) is provided with a protruding block.

5. The bellows rotary joint according to claim 1, characterized in that: The thickened nut (6) is a hexagonal nut, and the outer wall of the thickened nut (6) forms an arc-shaped groove.

6. The bellows rotary joint according to claim 1, characterized in that: A thread groove is formed on the outer wall of the mounting stud (7), the mounting stud (7) is connected to the thickened and enlarged column (5) by hot melting, and a docking hole (8) is provided inside the mounting stud (7).

7. The bellows rotary joint according to claim 6, characterized in that: The docking hole (8) coincides with the central axis of the mounting stud (7), and the docking hole (8) penetrates the interior of the mounting stud (7).

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