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A wrench capable of controlling the protruding length of a core-through bolt

A technology of protruding length and core-piercing bolts, which is applied in the direction of wrenches, screwdrivers, manufacturing tools, etc., can solve the problems of different protruding lengths at both ends of core-piercing bolts, and the protruding length is not easy to grasp, so as to achieve simple operation, good practical effect

Active Publication Date: 2016-06-01
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the prior art, the core-through bolts are manually installed, and it is not easy for workers to grasp the protruding lengths of both ends of the core-through bolts during construction, resulting in the problem that the protruding lengths of the two ends of the core-through bolts are different. The purpose of the present invention is to Provide a wrench that can control the extension length of the core bolt, and accurately control the extension length of both ends of the core bolt during the installation process

Method used

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  • A wrench capable of controlling the protruding length of a core-through bolt
  • A wrench capable of controlling the protruding length of a core-through bolt
  • A wrench capable of controlling the protruding length of a core-through bolt

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Embodiment Construction

[0032] Such as Figure 1 to Figure 10 As shown, a wrench that can control the extension length of the core bolt of the present invention includes a wrench 1, a nut ferrule 2 and a positioning mechanism 3. The wrench 1 includes a handle 11, a transition portion 12 and a wrench head 13. The wrench head 13 and the handle 11 are connected with a transition portion 12, the transition portion is set on an inclined plane, the center of the wrench head 13 is provided with a first step hole 131, and the shape of the nut ferrule 2 is adapted to the first step hole 131, which is square. And the nut ferrule 2 is inserted into the first stepped hole 131 , and the center of the nut ferrule 2 is provided with a second stepped hole 21 for clamping the nut.

[0033] The positioning mechanism 3 is arranged on the end face of the wrench head 13 side, figure 1 Wherein it faces upwards, including a positioning plate 31, a fastening screw 32 and a positioning slider 33. A slotted hole 311 is arra...

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Abstract

A spanner capable of controlling the extension lengths of a through bolt mainly solves the problem of the prior art that the through bolt is installed manually, and therefore the extension lengths of the two ends of the through bolt are different. The spanner comprises a spanner body, a nut clamping sleeve and a positioning mechanism, wherein the nut clamping sleeve is embedded in the spanner body, a second stepped hole used for clamping a nut is formed in the center of the nut clamping sleeve, the positioning mechanism is arranged on the end face of the side, provided with steps, of the head of the spanner body and comprises a positioning plate, a fastening screw and a positioning sliding block, a slotted hole is formed in the middle of the positioning plate, a scale plate is arranged on one side of the positioning plate, the zero graduation line of the scale plate is flush with the end face of the non-stepped side of the head of the spanner body, the fastening screw and the positioning sliding block are located on the two sides of the slotted hole and are in threaded connection, and sliding and locking of the positioning sliding block can be achieved by rotating the fastening screw. By the adoption of the spanner, the extension lengths of the two ends of the through bolt can be controlled accurately during installation.

Description

technical field [0001] The invention relates to the technical field of hardware tools, in particular to a wrench capable of controlling the protruding length of a core-through bolt. Background technique [0002] In the process of engineering equipment installation, pipeline installation is very common. As a common pipeline connection method, flange connection means that flanges are cast at both ends of the pipeline, and there is a seal on the end face of the flange. The groove is equipped with a sealing ring, and the pipes are tightly connected together with bolts or core bolts after butt joint. The flange connection method is widely used in pipeline connections in many fields such as electric power, petroleum and chemical industry. Usually, there will be liquid in the connected pipeline, which is oil or other dangerous chemical raw materials, such as the cooling of large transformers. The oil circuit contains cooling oil, which is used for continuous circulation to cool do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/48B25B23/00
CPCB25B13/48B25B23/0064
Inventor 王伟苗培青张彦高华伟王吉生单波韩义成陈新刚李洋刘宁唐爽韩延峰屠庆波王艳梅靳书栋郝铁军李彦闫勇刘宏志孔超钟治艳
Owner STATE GRID CORP OF CHINA
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