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Anti-loosening adjustable spanner

A wrench and movable pliers technology, applied in the field of anti-loosening adjustable wrench, can solve the problems such as the falling off of the movable jaw positioning screw, the disintegration of the adjustable wrench, the displacement of the movable jaw, etc., and achieve the effects of not easy to loosen, high precision, and improved structural stability.

Pending Publication Date: 2019-06-21
张一达
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing adjustable wrenches are of turbine and shaft pin structure, and the positioning screw of the movable jaw often falls off, thus causing the worm gear to fall apart, the adjustable wrench disintegrates, and the movable jaw often shifts during use, and must be readjusted. Worm gear, inconvenient to use

Method used

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  • Anti-loosening adjustable spanner
  • Anti-loosening adjustable spanner
  • Anti-loosening adjustable spanner

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] Please see attached Figure 1-9 , a kind of anti-loosening adjustable wrench, including a body 1 and a movable jaw 2, the body 1 is composed of a fixed jaw and a wrench, and a gear set mounting hole is arranged on the right side of the lower part of the fixed jaw; the movable jaw 2 is 1 / 4 A cylinder, wherein the right-angled side cooperates with the fixed jaw to clamp objects such as bolts or nuts, and a T-shaped key 201 is provided under the other right-angled side, and a rack 202 is also provided below the T-shaped key 201; the body 1 and the moving jaw 2 are processed with a T-shaped groove slideway 104, and the body 1 and the moving jaw 2 slide through the T-shaped groove slideway 104; the gear set installation hole is a deep hole, and the center of the circle is equipped with a gear set positioning The hole 103 is further provided with a positioning groove A101 and a positioning groove B102 on both sides of the diameter.

[0025] The gear set 10 is made up of a ge...

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Abstract

The invention discloses an anti-loosening adjustable spanner which belongs to the technical field of tool equipment. The anti-loosening adjustable spanner comprises a main body, a movable jaw, a cover, a handle, a belleville spring, a gear set, a ball and a spring, wherein the handle is pressed by a thumb so as to drive the gear set to overcome an elastic force of the belleville spring, and the gear set slides in a gear set positioning hole, so that an internal spline and an external spline are separated, and the external spline is located in a clearance groove at the moment; the handle is rotated by the thumb so as to drive the gear set to rotate and further drive the movable jaw to slide in a T-shaped groove slideway; and a ratchet mechanism has a positioning function, so that the external spline is ensured to be combined with the internal spline under the action of the elastic force of the belleville spring after loosening the thumb. The adjustable spanner adopts a ratchet wheel sizing structure; the grading accuracy is designed to be 1mm, and a gear rack transmission mechanism is adopted, so that the transmission accuracy is improved; and by adopting a spline transmission mechanism, the transmission accuracy is improved, and the structure stability is improved.

Description

technical field [0001] The invention relates to an anti-loosening adjustable wrench, which belongs to the technical field of tools and equipment. Background technique [0002] Wrenches are often used in daily life and work, such as home appliance maintenance, mechanical maintenance, or water pipe maintenance. Common wrenches include dead wrenches and adjustable wrenches. One or both ends of the dead wrench are made with fixed-sized openings for twisting Nuts or bolts of a certain size; the opening width of the adjustable wrench can be adjusted within a certain size range, and can twist bolts or nuts of different specifications. However, most of the existing adjustable wrenches are of turbine and shaft pin structure, and the positioning screw of the movable jaw often falls off, thus causing the worm gear to fall apart, the adjustable wrench disintegrates, and the movable jaw often shifts during use, and must be readjusted. Worm gear, inconvenient to use. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/14B25B13/46
Inventor 张一达
Owner 张一达
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