Anti-pulling connector

Abstract

The utility model discloses an anti-pulling connector which comprises an annular connector body, an anti-pulling assembly is arranged on the inner annular wall of the connector body and comprises a first locking piece and a second locking piece, the first locking piece is located at the head end of the inner annular wall of the connector body, and the second locking piece is located at the tail end of the inner annular wall of the connector body. The first locking piece and the second locking piece each comprise a fixing ring and a plurality of clamping teeth distributed in the circumferential direction of the fixing ring, the clamping teeth are elastic, and the clamping teeth on the first locking piece are arranged in a downward inclined mode from the fixing ring end to the tail end of the inner ring wall. The clamping teeth on the second locking piece are obliquely arranged upwards in the direction from the fixed ring end to the head end of the inner ring wall. The utility model has the advantages of high structural strength and difficulty in displacement after assembly, has an anti-pulling function, and is higher in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe joint technology field, more specifically, it relates to a kind of anti-pulling joint. BACKGROUND

[0002] Pipe is used for the pipe of urban underground space laying, and the pipe needs to be spliced when being long, when multiple pipes are spliced, joint needs to be added to reinforce, to enhance the fastening of pipe connection.The common joint design is circular ring, and the tight fit of the pipe is realized by the friction between the inner wall of the sleeve ring and the outer wall of the pipe.However, the joint of such design is prone to be pulled out by external force, resulting in displacement, and the joint after displacement cannot protect and seal the joint of the pipe well, resulting in unstable working quality.Based on the problem, the present application provides an anti-pulling joint which is not easy to be displaced. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide an anti-pulling joint with high stability.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-pulling joint, comprising a ring-shaped joint body, a pulling prevention assembly is arranged on the inner ring wall of the joint body, the pulling prevention assembly comprises a locking piece one and a locking piece two, the locking piece one is located at the leading end of the inner ring wall of the joint body, and the locking piece two is located at the trailing end of the inner ring wall of the joint body, the locking piece one and the locking piece two each comprise a fixed ring and a plurality of clamping teeth distributed circumferentially along the fixed ring, the clamping teeth have elasticity, the clamping teeth on the locking piece one are inclined downward from the end of the fixed ring towards the trailing end of the inner ring wall, and the clamping teeth on the locking piece two are inclined upward from the end of the fixed ring towards the leading end of the inner ring wall.

[0005] The utility model is further provided as follows: the fixed ring and the clamping teeth are arranged in an integral structure, and both are made of metal material.

[0006] The utility model is further provided as follows: the joint body is made of metal material, and the locking piece one and the locking piece two are welded on the inner ring wall of the joint body.

[0007] The utility model is further provided as follows: the clamping teeth are arranged in a triangular shape, and the spacing between the adjacent clamping teeth is 10mm.

[0008] By adopting the above technical scheme, the structure of the locking piece one and the locking piece two is added, the clamping teeth are arranged inside, which can effectively prevent the joint from being displaced and separated from the pipe after assembly, and can improve the fastening of the joint assembly and the stability of the joint during work. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1A structure schematic view of the utility model;

[0010] Fig. 2 A structure schematic view of the utility model;

[0011] Fig. 3 A partial sectional view of the utility model.

[0012] 1, joint body;2, locking piece one;3, locking piece two;4, fixed ring;5, tooth. Specific implementation

[0013] Refer to Figs. 1 to 3 Further illustrate the utility model embodiment.

[0014] A kind of anti-pulling joint, including annular joint body 1, the inner ring wall of the joint body 1 is equipped with anti-pulling component, the anti-pulling component includes locking piece one 2 and locking piece two 3, the locking piece one 2 is located in the first end of the inner ring wall of joint body 1, locking piece two 3 is located in the tail end of the inner ring wall of joint body 1, the locking piece one 2, locking piece two 3 all include fixed ring 4 and the multiple teeth 5 distributed along the fixed ring 4 periphery, the tooth 5 has elasticity, the tooth 5 on the locking piece one 2 is inclinedly arranged downward from the end of fixed ring 4 towards the tail end direction of inner ring wall, the tooth 5 on the locking piece two 3 is inclinedly arranged upward from the end of fixed ring 4 towards the first end direction of inner ring wall.The fixed ring 4 and tooth 5 are integrally arranged, and both are made of metal material.The joint body 1 is made of metal material, the locking piece one 2 and locking piece two 3 are all welded on the inner ring wall of joint body 1.The tooth 5 is arranged in triangular shape, and the spacing between the adjacent tooth 5 tooth tips is 10mm.

[0015] Working principle: joint body 1 is set on the outer wall of pipeline, tooth 5 is in contact with the outer wall of pipeline, and the tooth 5 on the locking piece one 2 and locking piece two 3 faces opposite, when pipeline is pulled and displaced from different directions, tooth 5 is arranged, to prevent displacement, greatly improve the firmness of assembly with pipeline and the stability of cooperation.

[0016] The above only is the preferred implementation of the utility model, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and all technical solutions under the idea of the utility model belong to the protection scope of the utility model for the utility model. It should be pointed out that, for ordinary skilled person in the art, a number of improvements and refinements without departing from the principle of the utility model, these improvements and refinements should also be considered as the protection scope of the utility model.

Claims

1. A pull-out resistant connector, characterized in that: The device includes a ring-shaped connector body. An anti-pull-out component is provided on the inner ring wall of the connector body. The anti-pull-out component includes a locking element one and a locking element two. The locking element one is located at the first end of the inner ring wall of the connector body, and the locking element two is located at the tail end of the inner ring wall of the connector body. Both the locking element one and the locking element two include a fixing ring and a plurality of locking teeth distributed circumferentially along the fixing ring. The locking teeth are elastic. The locking teeth on the locking element one are inclined downward from the fixing ring end toward the tail end of the inner ring wall, and the locking teeth on the locking element two are inclined upward from the fixing ring end toward the first end of the inner ring wall.

2. The anti-pullout connector according to claim 1, characterized in that: The fixing ring and the retaining teeth are integrally formed, and both are made of metal.

3. The anti-pullout connector according to claim 2, characterized in that: The connector body is made of metal material, and both locking element one and locking element two are welded to the inner ring wall of the connector body.

4. The anti-pullout connector according to claim 3, characterized in that: The teeth are arranged in a triangular shape, and the distance between the tips of adjacent teeth is 10mm.

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