Removal device for metal expansion bolt

A technology of metal expansion and bolts, which is applied in hand-held tools and manufacturing tools, etc., can solve the problems that it is difficult for the section to be flush with the structural surface, it is easy to scratch and stumble, and it is difficult to remove the expansion bolts, etc., so as to achieve convenient construction, Ease of use and simple structure

Active Publication Date: 2017-02-22
姜军鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of use, once the installation position changes, the expansion bolts need to be removed. In the actual construction process, there is no special tool, which makes it difficult to remove the expansion bolts. The expansion bolts are often left in the structure by cutting them

Method used

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  • Removal device for metal expansion bolt
  • Removal device for metal expansion bolt

Examples

Experimental program
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Example Embodiment

[0020] A metal expansion bolt extractor of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings.

[0021] like figure 1 As shown in the figure, a metal expansion bolt extractor of the present invention includes a working handle 1, and a threaded mandrel 2 with an external thread is connected below the working handle 1, and the outer thread of the middle of the threaded mandrel 2 is connected with an internal thread Sleeve 3, the two sides of the outer peripheral surface of the inner threaded sleeve 3 are symmetrically hinged with a set of outer sides of the middle part wrapped around the lower part of the threaded ejector rod 2, and the lower part can be inserted into the metal installed in the fixed structure. Between the bolt part 5 of the expansion bolt and the sleeve part 6, the pull-out mechanism 4 used to pull out the sleeve part 6 from the fixed structure, the bottom end of the threaded top rod 2 is agai...

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PUM

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Abstract

The invention provides a removal device for a metal expansion bolt. The removal device for the metal expansion bolt comprises an operating handle. The lower surface of the operating handle is connected with a threaded ejection rod provided with external threads. The outer side of the middle portion of the threaded ejection rod is connected with an internal threaded sleeve in a threaded mode. Two removal mechanisms are symmetrically hinged to the two sides of the outer circumferential surface of the internal threaded sleeve correspondingly, wherein the outer side edge of the lower portion of the threaded ejection rod is wrapped with the middle portions of the removal mechanisms, the lower portions of the removal mechanisms can be inserted into the space between a bolt part and a sleeve part of the metal expansion bolt mounted in a fixing structure, and the removal mechanisms are used for removing the sleeve part from the fixing structure. The removal device for the metal expansion bolt is simple in structure and convenient to manufacture and use, the expansion bolt can be removed from a mounting position easily and completely, no residue is left, a fracture surface is flush with the structure, and subsequent construction is facilitated.

Description

technical field [0001] The invention relates to a bolt puller. In particular, it relates to a metal expansion bolt puller used for pulling out installed metal expansion bolts. Background technique [0002] Metal expansion bolts are more commonly used installation and fixing devices in industrial sites and daily life. They can be fixed through the cooperation of bolts and outer sleeves, eliminating the need for embedded parts and improving the flexibility of construction. However, in the process of use, once the installation position changes, the expansion bolts need to be removed. In the actual construction process, there is no special tool, which makes it difficult to remove the expansion bolts. The expansion bolts are often left in the structure by cutting them off with a cutting machine. , because a cutting machine is used to cut off the bolts, sharp cuts must be left, and it is difficult to achieve the leveling of the section and the structural surface, which is prone t...

Claims

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Application Information

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IPC IPC(8): B25B27/06
CPCB25B27/062
Inventor 姜军鹏
Owner 姜军鹏
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