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Expansion bolt wrench and method for removing expansion bolts

A technology of expansion bolts and wrenches, applied in the directions of wrenches, connecting components, pins, etc., can solve problems such as unfavorable work safety, waste of time, and inability to completely remove

Active Publication Date: 2017-08-01
姚 兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the existing expansion bolts need to be removed during or after installation, the operation is very difficult, and sometimes they cannot be completely removed, which is a waste of time and is not conducive to work safety

Method used

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  • Expansion bolt wrench and method for removing expansion bolts
  • Expansion bolt wrench and method for removing expansion bolts
  • Expansion bolt wrench and method for removing expansion bolts

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Such as figure 1 As shown, at least one strip-shaped notch 2 is provided at the front end of the expansion tube 1 , and at least one bayonet groove 3 communicating with the strip-shaped notch 2 is provided on both sides of the strip-shaped notch 2 . The bayonet groove 3 that communicates with the strip gap 2 can be turned back to the front end of the expansion tube 1, and the tail end of the folded bayonet groove 3 is not allowed to communicate with the strip gap 2 or the front end of the expansion tube 1.

example 2

[0018] Such as figure 2 As shown, the expansion bolt wrench is composed of a wrench 5, a wrench 4 and a handle 6 in three parts. The wrench 5 is at the front end of the wrench 4, and the handle 6 is at the tail end of the wrench 4; the wrench 5 is composed of a hollow column and a bayonet key 7, the inner diameter of the hollow column is slightly larger than the diameter of the screw, and the outer diameter is slightly smaller than the expansion tube 1 Internal diameter, the depth from the inner wall of the bayonet key 7 to the bottom of the hollow column is greater than the length from the front end of the screw to the bottom of the bar-shaped gap 2, the bayonet key 7 is fixed on the outer wall of the hollow column, the number and position of the bayonet key 7 and The quantity and position of the bayonet groove 3 match; the bayonet key 7 is preferably located at the front end of the hollow column; the outer mouth of the front end of the hollow column shrinks slightly inward;...

example 3

[0020] Such as image 3 As shown, first remove the nut and gasket of the expansion bolt, assemble the expansion bolt wrench, make the bayonet key 7 pass through the bar-shaped gap 2, insert the wrench 5 into the gap between the expansion tube 1 and the screw rod, and then pass the handle 6 Turn the trigger lever 4 to make the bayonet key 7 enter the bayonet groove 3, then hold the handle 6 and pull it outwards or pull it while turning, so that the expansion tube 1 can be taken out first, and finally the screw rod can be taken out.

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PUM

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Abstract

The invention discloses an expansion bolt, an expansion bolt wrench and a dismantling method of the expansion bolt. The invention discloses the expansion bolt. According to the expansion bolt, at least one strip-shaped opening is formed in the front end of an expansion pipe, two sides of the strip-shaped opening are respectively provided with at least one bayonet groove which is communicated with the strip-shaped opening, the bayonet grooves which are communicated with the strip-shaped opening can be turned back towards the front end of the expansion pipe, and the tail end of each turn-back bayonet groove is not allowed to be communicated with the strip-shaped opening or the front end of the expansion pipe. The expansion bolt has the advantages of being capable of effectively overcoming the defects that in the process of installation of the expansion bolt or after the installation of the expansion bolt is completed, when the expansion needs dismantling, the expansion bolt is not easy to dismantle.

Description

technical field [0001] The invention relates to an expansion bolt. The invention also relates to an expansion bolt wrench. The invention also relates to a method for removing the expansion bolt. Background technique [0002] When the existing expansion bolts need to be removed during or after installation, the operation is very difficult, and sometimes they cannot be completely removed, which wastes time and is not conducive to work safety. Contents of the invention [0003] The first technical problem to be solved by the present invention is to increase the detachable function of the existing expansion bolt; the second technical problem to be solved by the present invention is to provide a wrench that can remove the expansion bolt; the third to be solved by the present invention A technical problem is to provide a method for removing the expansion bolt. [0004] The technical solution of the present invention is: at least one strip-shaped notch is provided at the front...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B13/06B25B13/48
Inventor 姚兰
Owner 姚 兰
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