Adjustable spanner

An adjustable wrench technology, applied to wrenches, manufacturing tools, wrenches, etc., can solve the problems of workpiece surface damage, complex process, low application rate, etc., and achieve the effects of prolonging service life, convenient portability, and strong versatility

Inactive Publication Date: 2017-02-22
王雨琪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The open-end wrench and ring wrench can only achieve the tightness of a single size of the fastener; the adjustable wrench is easy to slip due to the complicated process, and the application rate is low; the universal wrench damages the surface of the workpiece more

Method used

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  • Adjustable spanner
  • Adjustable spanner
  • Adjustable spanner

Examples

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing:

[0021] like figure 1 As shown, the adjustable wrench includes a wrench body 2, and the wrench body 2 is provided with a moving toothed plate 1 and a pawl 3 that cooperate with each other;

[0022] like figure 2 and image 3 As shown, the wrench body 2 is provided with sleeve holes 7 and evenly distributed grooves 10, and the wrench body 2 is provided with a movable toothed disc 1 and a pawl 3 that cooperate with each other, and the movable toothed disc 1 is provided with grooves 10 is fitted with an arc-shaped groove A4, and a sliding block 6 is provided in the groove 10, and the sliding block 6 passes through the arc-shaped groove A4 through a pin shaft and is flexibly connected with the moving toothed disc 1, and the tangent line at any point on the circumference of the moving toothed disc 1 The included angle a with the tangent line on the outer circumference of the ...

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PUM

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Abstract

The invention discloses an adjustable spanner, and belongs to the technical field of hardware tools. The adjustable spanner mainly comprises a spanner body, a sleeve hole and grooves distributed uniformly are formed in the spanner body, a movable fluted disc and a pawl which are matched mutually are arranged in the spanner body, an arc groove A matched with the grooves is formed in the movable fluted disc, sliding blocks are arranged in the grooves, penetrate through the arc groove A through a pin shaft and are movably connected with the movable fluted disc, and the included angle a between the tangent line of any point on the circumference of the movable fluted disc and the tangent line, passing the point, of the outer circumference of the arc groove A is 45-60 degrees; an arc groove B is concentrically formed in the movable fluted disc; the pawl is hinged to the spanner body through a pin shaft, and an elastic device is arranged between the pawl and the spanner body. The adjustable spanner is simple in structure, convenient to use, capable of tightening fasteners different in specification and size, large in locking force and not prone to slipping, protects a workpiece from injury and is mainly used for screwing a bolt or nut.

Description

technical field [0001] The invention belongs to the technical field of hardware tools, and in particular relates to an adjustable wrench. Background technique [0002] A wrench is a commonly used installation and removal tool. Hand tools for turning bolts, screws, nuts, and other open or socketed fasteners whose threads hold bolts or nuts tightly by the principle of leverage. The wrench is usually formed with an opening or a sleeve hole for clamping a bolt or a nut at one or both ends of the handle. When in use, an external force is applied to the handle along the thread rotation direction to twist the bolt or nut. At present, commonly used wrenches include open-end wrenches, ring wrenches, adjustable wrenches and universal wrenches. The open-end wrench and the ring wrench can only achieve the tightness of a single size of the fastener; the adjustable wrench is easy to slip due to the complicated process, and the application rate is low; the universal wrench damages the su...

Claims

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Application Information

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IPC IPC(8): B25B13/10B25B13/36
CPCB25B13/10B25B13/36
Inventor 王雨琪韦红传王海
Owner 王雨琪
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