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Mechanical locking device suitable for pipeline

A locking device and mechanical technology, applied in the direction of mechanical equipment, locking fasteners, threaded fasteners, etc., can solve the problems of loosening and loosening of threaded pipe connections, and achieve the purpose of preventing loosening, simple structure and practicality. good effect

Pending Publication Date: 2020-09-08
蒋建伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The threaded pipe structure is usually connected by a structure in which a cylindrical internal thread is inserted into a cylindrical external thread. However, this threaded pipe structure is prone to loosening after a long time of use, that is, the thread is prone to backlash. Turning in the opposite direction causes the pipe connection to loosen

Method used

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  • Mechanical locking device suitable for pipeline
  • Mechanical locking device suitable for pipeline
  • Mechanical locking device suitable for pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1-4 As shown, a mechanical locking device suitable for pipelines includes a stop ring male part 3 sleeved on one end of the female threaded pipe 1 and a stop ring female part 4 sleeved on the outer threaded pipe 2. The bottom surface of the male part 3 of the movable ring is uniformly distributed with ratchet teeth 3a, and the female part 4 of the stop ring is movably connected with a pawl 4a for cooperating with the ratchet teeth 3a. The internal thread pipe 1 and the external thread pipe 2 are screwed together. , The ratchet tooth 3a can be made to abut against the stop ring female part 4, and the pawl 4a can be clamped between any two ratchet teeth 3a, so that the stop ring male part 3 can only be opposite to the stop ring female part 4 To rotate (rotate in the tightening direction), the stop ring female member 4 is provided with a reset mechanism for pushing the pawl 4a to withdraw the pawl 4a from between the ratchet teeth 3a.

[0040] When the mechani...

Embodiment 2

[0048] Such as Figure 7-11 As shown, the difference between this embodiment and Embodiment 1 is only in the structure of the reset mechanism. Specifically, a through hole is formed on the stop ring female member 4 along the axial direction, and the reset mechanism includes a through hole. The stop pin 7 can move up and down. The top end of the stop pin 7 is wedge-shaped and can extend upward from the mounting hole to form the pawl 4a. The bottom end of the stop pin 7 is provided with a female stop ring On the convex block 5c on the bottom end of the part 4, the inner wall surface of the through hole is provided with an upper step surface and a lower step surface. The outer wall of the stop pin 7 is fixedly connected with a limit ring 5a that can abut the upper and lower step surfaces. The limit ring 5a and A compression spring 5d is connected between the lower step surfaces, a sealing ring 5b is clamped on the inner wall surface of the through hole, and the stop pin 7 is pulle...

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Abstract

The invention discloses a mechanical locking device suitable for a pipeline, and relates to the technical field of pipeline connection. The mechanical locking device comprises a stop ring male part used for being nested at one end of an internal thread pipeline and a stop ring female part used for being nested on an external thread pipeline, and ratchets are annularly and uniformly distributed onthe bottom surface of the stop ring male part; a pawl used for being matched with the ratchets is movably connected in the stop ring female part, the ratchets can abut against the stop rng female partby connecting the internal thread pipeline and the external thread pipeline in a screwed mode, and the pawl is clamped between any two ratchets so that the stop ring male part can only rotate in onedirection relative to the stop ring female part; and a reset mechanism used for pushing the pawl so that the pawl can retreat from the space between the ratchets is arranged on the stop ring female part. After the pipeline is in threaded connection, reverse rotation between the threads can be effectively prevented, and then the pipeline is prevented from being loosened.

Description

Technical field [0001] The invention relates to the technical field of pipeline connection, in particular to a mechanical locking device suitable for pipelines. Background technique [0002] There are many ways of pipe connection, including threaded connection, flange connection, welding connection, socket connection, pipe bonding connection, etc. The threaded pipe structure is usually connected by a cylindrical internal thread sleeved with a cylindrical external thread. However, the threaded pipe structure is prone to looseness after a long time of use, that is, the threads are prone to reverse Rotate to cause the pipe connection to loosen. Summary of the invention [0003] The purpose of the present invention is to provide a mechanical locking device suitable for pipelines, which can effectively prevent reverse rotation between threads after the pipeline is threaded, thereby avoiding the loosening of the pipeline. [0004] In order to solve the above technical problems, the pres...

Claims

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Application Information

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IPC IPC(8): F16L15/08F16B39/32
CPCF16B39/32F16L15/001F16L15/006F16L15/08
Inventor 蒋建伟蒋易岑
Owner 蒋建伟
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