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Wrench

A wrench and wrench head technology, applied in the field of wrenches, can solve problems such as wrenches not working properly

Inactive Publication Date: 2013-01-02
SHANGHAI KUNJEK HANDTOOLS & HARDWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a wrench to solve the technical problem in the prior art that the wrench cannot work normally due to the improper setting of the connector structure on the wrench

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A wrench, in particular a combined graded wrench, comprising a large size wrench head and a small size wrench head, both of the large size wrench head and the small size wrench head include at least one section of a prismatic member, and the large size The smallest size section of the wrench is larger than the largest size section of the small size wrench. The bottom of the large-size wrench is provided with a connection groove, and the upper part of the small-size wrench is provided with a connecting piece adapted to the connection groove. This connecting piece can be inserted into the connection groove to complete the connection between the large-size wrench and the small-size wrench. connect.

[0059] Please refer to figure 1 , figure 2 and image 3 , the upper part of the large size wrench 1 is provided with a first connector 2, and the first connector 2 is integrally made with the large size wrench 1. The first connecting head 2 is in the shape of a cuboid. An...

Embodiment 2

[0065] A wrench, in particular a combined graded wrench, comprising a large size wrench head and a small size wrench head, both of the large size wrench head and the small size wrench head include at least one section of a prismatic member, and the large size The smallest size section of the wrench is larger than the largest size section of the small size wrench. The bottom of the large-size wrench is provided with a connection groove, and the upper part of the small-size wrench is provided with a connecting piece adapted to the connection groove. This connecting piece can be inserted into the connection groove to complete the connection between the large-size wrench and the small-size wrench. connect.

[0066] The structure of this embodiment is similar to that of Embodiment 1, the difference is that no opening is provided on the first connecting head.

Embodiment 3

[0068] Please refer to Figure 9 , Figure 10 and Figure 11 , a wrench, including at least one specification of the wrench 6, in this embodiment, the wrench 6 includes 2 to 6 sections of prismatic components of different specifications, from small to large, in a stepped shape, each prismatic component The two corresponding side surfaces are respectively provided with V-shaped grooves.

[0069] A connecting head 7 is arranged on the top of the wrench head 6, the shape of the connecting head 7 is not limited, it can be cylindrical or cuboid, and in this specific embodiment, the connecting head 7 is cuboid. One side of the connecting head 7 is provided with an opening 73 for connecting with the vertical rod 5, and a steel ball assembly 71 is also arranged on the side of the connecting head 7, the steel ball assembly 71 and the opening 73 can be arranged on the same side, It can also be arranged on two different sides, and the present invention is not limited thereto. In this...

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Abstract

The invention provides a wrench which comprises at least one specification of wrench heads. A connector is disposed at the top of each wrench head and is provided with a connecting component convenient to connect with a shank / stem. The wrench heads are of different specifications and are stepped. Each wrench head comprises a plurality of graded wrench heads, and a connecting component convenient to connect with the shank / stem is disposed on the connector at the top of each graded wrench head. Each wrench head comprises a plurality of graded wrench heads, and the connecting component convenient to connect the shank / stem is disposed on the connector at the top of the largest wrench head. Each connecting component is provided with a hole on the side of the connector. Each connecting component can also comprise a socket at the center of the top of the connector and further comprises a steel ball component inlaid on the connector. The wrench is simple in structure and convenient to operate, and the technical problem that the wrench is unable to use normally due to improper structural setting of the connectors of the wrench in the prior art is solved.

Description

technical field [0001] The invention relates to a wrench, in particular to a wrench for heating equipment. Background technique [0002] At present, due to the unreasonable structure of the general-purpose wrenches on the market, the wrench cannot tighten the pipe fittings. Generally, the mouth of the wrench is stuck between the two pipe fittings before the pipe fittings are tightened. Most installers use The wrench bites the body or the threaded thread for installation, and finally the body is damaged, or the threaded thread is flattened. In addition, the volume and weight of the wrench increase with the increase of the caliber range, so it is difficult to move it in some places where the installation space is narrow. It will bring great inconvenience to the installers. [0003] For heating equipment, the hand tools currently used to screw screws include adjustable wrench with adjustable opening, pipe wrench, tubular or sheet wrench with fixed opening shape, etc., but it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/48
Inventor 宋卫军
Owner SHANGHAI KUNJEK HANDTOOLS & HARDWARE
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