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Bolt dismounting wrench

A wrench and screw technology, which is applied in the field of screw disassembly and assembly wrenches, can solve the problems of not being able to quickly disassemble and assemble screws with multiple specifications, and achieve the effects of simple structure, good overall operability, and high working precision

Inactive Publication Date: 2012-02-22
晋跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Bolts are used in most of the connecting parts of mechanical devices. At present, solid wrenches, ring wrenches, dual-purpose wrenches, ordinary adjustable wrenches and double-ended ratchet wrenches are commonly used to disassemble and assemble bolts. However, one wrench cannot meet the needs of multi-specification screws. Requirements for quick disassembly

Method used

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  • Bolt dismounting wrench
  • Bolt dismounting wrench
  • Bolt dismounting wrench

Examples

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Embodiment Construction

[0019] Such as Figure 1~4 In the shown embodiment, a screw dismounting wrench according to the present invention includes a wrench handle 2 and a handle cover 1, both ends of the wrench handle 2 are hinged with fixing seats 3 through support pins 4, and each side of the wrench handle 2 is There is a blind hole, and the positioning spring assembly 6 of the fixing seat 3 and the positioning steel ball 7 are installed in the blind hole, and the positioning steel ball 7 cooperates with the arc grooves provided on both sides of the fixing seat 3 to play a positioning role. Each fixing base 3 is provided with two mounting holes for nut sleeves 5, the lower part of the mounting hole is provided with a stepped surface, the upper part is provided with an annular groove, one side of the mounting hole is provided with a blind hole, and the blind hole is provided with a ratchet. Claw 13 compresses the spring assembly 8 and the compression steel ball 9. There are two plum blossom holes of...

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PUM

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Abstract

The invention discloses a bolt dismounting wrench which comprises a wrench handle and fixing seats hinged at the two ends of the wrench handle, wherein a nut sleeve is arranged on each fixing seat, an upper quincuncial hole and a lower quincuncial hole are formed on the inner ring of the nut sleeve, and a ratchet mechanism is arranged on the outer ring of the nut sleeve. By forming the upper and lower quincuncial holes on the inner ring of the nut sleeve, the requirement for dismounting bolts of different specifications can be met; by arranging the ratchet mechanism on the outer ring of the nut sleeve, the nut sleeve is driven to rotate positively and negatively in one direction with clearance; and compared with the prior art, the wrench has a simple and compact structure as well as good overall operability, reduces the labor intensity of workers and improves the working efficiency.

Description

technical field [0001] The invention relates to a disassembly tool, in particular to a screw disassembly wrench. Background technique [0002] A wrench is a tool used to tighten or loosen screws and nuts. It uses the principle of leverage to turn bolts, screws, nuts, and other hand tools that are threaded to hold bolts or nuts. When in use, an external force is applied to the shank in the direction of thread rotation, so that the bolt or nut can be twisted. Wrenches are commonly made of carbon structural steel and alloy structural steel. [0003] Bolts are used in the connecting parts of most mechanical devices. At present, solid wrenches, ring wrenches, dual-purpose wrenches, ordinary adjustable wrenches and double-ended ratchet wrenches are commonly used to disassemble and assemble bolts. However, one wrench cannot meet the needs of multi-specification screws. Requirements for quick disassembly and assembly. Contents of the invention [0004] The object of the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/46B25B23/00
Inventor 晋跃
Owner 晋跃