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Special-shaped spanner

A wrench and special-shaped technology, which is applied in the field of special-shaped wrenches, can solve the problems that the end of the bent handle is inconvenient to hold, affects the realization of the basic functions of the wrench, and achieves a good knocking effect

Inactive Publication Date: 2015-04-08
CHONGQING JINZEXIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN202079543 ​​provides a bent wedge-shaped tail shovel structure at the end of the wrench handle to make the wrench have the function of a crowbar, but the bent handle end is inconvenient to hold, which is also a common problem with other multifunctional wrenches, namely In order to obtain a variety of functions, it is often necessary to add or modify certain structures or components, which will ultimately affect the realization of the basic function of the wrench (removing bolts).

Method used

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Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the special-shaped wrench of the present invention includes a handle 1 and a receiving portion 2 that are connected as a whole, and the receiving portion 2 is provided with a notch 3 that matches the shape of the bolt head. The notch 3 in this embodiment is a hexagonal notch 3 matched with a hexagonal bolt.

[0025] The accommodating portion 2 is ring-shaped, that is, there is no notch on the periphery, the notch 3 is a through groove provided in the center of the accommodating portion 2, and the outer edge of the accommodating portion 2 is guided in the thickness direction. Angle 4. The thickness of the outer edge is at figure 1 For the edge between the upper and lower surfaces of the middle, for the convenience of holding, the outer edge of the handle 1 is also provided with rounded corners 4 in the thickness direction. The setting of the guide circle is not necessarily the guide semi-rounded corner 4, as long as the guide is basically set A c...

Embodiment 2

[0028] Such as figure 2 As shown, the difference between this embodiment and the first embodiment is that the handle 1 is divided into a split structure, which is composed of a first long handle and a second long handle.

[0029] The first long handle is fixedly connected to the accommodating portion 2, the second long handle is inserted on the first long handle, and the length directions of the first long handle and the second long handle are consistent. In this embodiment, the second long handle is provided with a flat key, the first long handle is provided with a key groove matching the shape of the flat key, and the first long handle and the second long handle are inserted together through the key groove.

[0030] Among them, the length of the flat key should be controlled within one-tenth of the total length of the second long handle to avoid excessively long connection distance, which will affect the twisting effect.

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Abstract

The invention discloses a door body dismounting and mounting tool, and particularly relates to a special-shaped spanner. The special-shaped spanner comprises a handle and an accommodating part which are connected into a whole, wherein the accommodating part is provided with a notch matched with the shape of a screw bolt head, the accommodating part is in an annular shape, the notch is a through groove formed in the center position of the accommodating part, the outer edge of the accommodating part is provided with round corners in the thickness direction, one side of the tail end of the handle is provided with a diagonal plane, the angle of the diagonal plane is between 15 degrees and 30 degrees, the projection length of the diagonal surface in the length direction of the handle is 7 to 12cm, the accommodating part is in an elliptical shape, in addition, a long axis of the ellipse of the accommodating part is vertical to the length direction of the handle, and a short axis of the ellipse of the accommodating part has the same direction with the length direction of the handle. The special-shaped spanner has the advantages that the defect that dismounting and mounting of the screw bolt is difficult due to structure addition and modification of the existing multifunctional spanner is overcome, and the spanner capable of being conveniently held is provided.

Description

Technical field [0001] The invention relates to a door body disassembly tool, in particular to a special-shaped wrench. Background technique [0002] Commonly used disassembly tools include wrenches, screwdrivers, hand pliers, hand hammers, copper rods, crowbars, unloading tools, lifting tools, etc. Wrenches are widely used in daily life, especially in the machinery industry. Screw removers such as open wrenches, box wrenches, and combination wrenches in wrenches are conventional hardware devices. The wrench heads are generally flat design, and the existing wrench handles are also a flat design, and the wrench head and wrench The handles are connected to one another along the flat surface. [0003] In order to make the wrench have a certain composite function, the prior art provides a variety of composite function wrenches. For example, Chinese patent CN202079543 ​​discloses a special multifunctional wrench for disassembly and assembly of a bowl and plate combined scaffold, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/48B25B23/10B25B23/16B25F1/00
CPCB25B13/48B25B23/16B25F1/00
Inventor 蔡明英
Owner CHONGQING JINZEXIN TECH