CN219452639U

CN219452639U - Novel expansion pipe

Info

Publication number: CN219452639U
Application number: CN202320561029.1U
Authority: CN
Inventors: 邵明明
Original assignee: Cixi Feigao Fastener Co ltd
Current assignee: Cixi Feigao Fastener Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-08-01
Anticipated expiration: 2033-03-21

Abstract

The utility model discloses a novel expansion pipe, which comprises an expansion pipe main body, wherein the expansion pipe main body comprises expansion pipe bodies, bottom caps, spring rings and nuts, the adjacent expansion pipe bodies form a circular pipe body through the spring rings, the rear ends of the expansion pipe bodies are embedded into the bottom caps, and the front ends of the expansion pipe bodies are embedded into the nuts to form an expansion pipe; according to the utility model, through the protruding member, the installation tightness of the expansion pipe body embedded into the base material can be increased, and the friction resistance and the pulling force between the expansion pipe body and the wall surface are increased, so that the situation of the following rotation of the pipe body is not easy to occur when the expansion pipe body is in threaded connection with an external bolt, and the pulling force of the expansion pipe body in the base material is increased.

Description

Novel expansion pipe

Technical Field

The utility model belongs to the technical field of expansion pipes, and particularly relates to a novel expansion pipe.

Background

The purpose of the expansion pipe is as follows: the device is matched with other components for use, and an object is fixed on different base materials. The metal expansion pipe mainly comprises five parts of a screw rod, a nut, an expansion sleeve (one end of the sleeve has a split expansion effect), a flat pad and a spring pad, and the expansion pipe is made of various materials and is not limited to metal materials.

The existing expansion pipe is embedded and installed on a loose or hollow wall surface made of some materials, and the outer surface of the expansion pipe is lack of limiting measures which affect the expansion, so that the problem that the expansion installation and fastening of the expansion pipe are affected due to the fact that the expansion pipe is possibly rotated when the expansion pipe is in threaded connection with an expansion bolt under certain conditions is solved.

Disclosure of Invention

The utility model aims to provide a novel expansion pipe so as to solve the problem that the expansion pipe in the background art is possibly connected with an external expansion bolt in a follow-up way.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel expansion pipe, includes the expansion pipe main part, and the expansion pipe main part includes expansion pipe shaft, end cap, spring coil and nut, and adjacent expansion pipe shaft passes through the spring coil and constitutes circular pipe body, and the end cap is embedded to the rear end, and the front end embedding nut constitutes an expansion pipe.

Preferably, the expansion pipe body comprises a limiting protruding part, the limiting protruding part comprises an embedding hole and a limiting elastic piece, the surface of the pipe body is provided with the embedding hole along the circumferential direction of the pipe body, the lower end of the limiting elastic piece is fixed with the inner wall of the lower end of the embedding hole, and the upper end of the limiting elastic piece extends out of the embedding hole to be exposed outside.

Preferably, the limiting spring plate forms an included angle with the vertical direction.

Preferably, the upper surface and the lower surface of the expansion pipe body are symmetrically provided with expansion cracks, the rear end of the conical nut is embedded into a circular pipe formed by the expansion pipe body, and the interior of the nut is provided with internal threads.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, through the limiting bulge part, the installation tightness of the expansion pipe body embedded into the base material can be increased, and the friction resistance and the pulling force between the expansion pipe body and the wall surface are increased, so that the situation of the following rotation of the pipe body is not easy to occur when the expansion pipe body is in threaded connection with an external bolt, and the pulling force of the expansion pipe body in the base material is increased.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a spacing bump of the present utility model;

in the figure: 100. an expansion pipe main body; 101. an expansion pipe body; 1011. expanding the crack; 102. a bottom cap; 103. a spring ring; 104. limiting the protruding part; 1041. an insertion hole; 1042. a limiting spring plate; 105. a nut; 1051. and (5) an internal thread.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a novel expansion pipe, includes expansion pipe main part 100, and expansion pipe main part 100 detachable embedding is installed at the wall, and expansion pipe main part 100 includes expansion pipe shaft 101, end cap 102, spring coil 103 and nut 105, and adjacent expansion pipe shaft 101 passes through spring coil 103 and constitutes the circular tube body, and expansion pipe shaft 101 can be two and above to be connected, realizes the fastening connection of two, and end embedding end cap 102, front end embedding nut 105 constitute an expansion pipe.

In this embodiment, preferably, the expansion pipe body 101 includes a spacing protruding portion 104, the spacing protruding portion 104 can increase the friction resistance between the expansion pipe body 100 and the wall, increase the installation strength of the expansion pipe body 100, and the spacing protruding portion 104 of the outer surface of the expansion pipe body 101 can not be limited to three, can be a plurality of, the spacing protruding portion 104 includes an embedded hole 1041 and a spacing shrapnel 1042, the pipe surface is provided with the embedded hole 1041 along its circumference direction, the lower end of the spacing shrapnel 1042 is fixed with the inner wall of the lower end of the embedded hole 1041, the upper end of the spacing shrapnel 1042 extends out of the embedded hole 1041, the spacing shrapnel 1042 extends out, can increase the friction resistance between the wall, and the spacing shrapnel 1042 forms an included angle with the vertical direction.

In this embodiment, preferably, expansion cracks 1011 are symmetrically arranged on the upper and lower surfaces of the expansion pipe body 101, so that the nut 105 is convenient to install, the rear end of the conical nut 105 is embedded into a circular pipe formed by the expansion pipe body 101, and internal threads 1051 are formed in the nut 105, so that the detachable rotary connection of the nut 105 and the expansion bolt is realized.

The working principle and the using flow of the utility model are as follows: when the expansion pipe body 100 is embedded into a wall surface, the limiting elastic piece 1042 is embedded into the wall surface along with the expansion pipe body 100, the contact area and the friction resistance between the limiting elastic piece 1042 and the inner part of the wall surface are increased, so that the situation that the expansion pipe body 100 rotates along with an external force is avoided when the expansion pipe body 100 is subjected to the external force, and meanwhile, when the wall surface is a hollow brick, the limiting elastic piece 1042 is just clamped inside the hollow brick, and the anti-falling effect and the installation tightness of the expansion pipe body 100 are improved.

Although embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel expansion pipe, includes expansion pipe main part (100), its characterized in that: the expansion pipe main body (100) comprises expansion pipe bodies (101), bottom caps (102), spring rings (103) and nuts (105), wherein the adjacent expansion pipe bodies (101) form round pipe bodies through the spring rings (103), the rear ends of the expansion pipe bodies are embedded into the bottom caps (102), and the front ends of the expansion pipe bodies are embedded into the nuts (105) to form an expansion pipe.

2. A novel expansion pipe according to claim 1, characterized in that: the expansion pipe body (101) comprises a limiting protruding portion (104), the limiting protruding portion (104) comprises an embedding hole (1041) and a limiting elastic piece (1042), the surface of the pipe body is provided with the embedding hole (1041) along the circumferential direction of the pipe body, the lower end of the limiting elastic piece (1042) is fixed with the inner wall of the lower end of the embedding hole (1041), and the upper end of the limiting elastic piece (1042) extends out of the embedding hole (1041) to be exposed outside.

3. A novel expansion pipe according to claim 2, characterized in that: and the limiting elastic piece (1042) forms an included angle with the vertical direction.

4. A novel expansion pipe according to claim 1, characterized in that: expansion cracks (1011) are symmetrically formed in the upper surface and the lower surface of the expansion pipe body (101), the rear end of a conical nut (105) is embedded into a circular pipe formed by the expansion pipe body (101), and internal threads (1051) are formed in the nut (105).