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Adjustable wrench

A wrench head and transmission mechanism technology, applied in the field of wrench heads, can solve the problems of wrench loss of function, uneven force, screw detachment, etc., and achieve the effect of high overall strength and uniform force

Inactive Publication Date: 2015-12-23
陆亚明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a structure causes uneven force on the front and back of the handle, which has a great impact on the overall strength of the handle. If it is dropped or the torque is relatively large, the screw is easy to disengage from the slot, causing the wrench to lose its function.

Method used

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  • Adjustable wrench
  • Adjustable wrench
  • Adjustable wrench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1, such as Figure 1 to Figure 6 As shown, the adjustable wrench in this embodiment includes a handle 1 , an adjustable wrench lip 2 , a transmission mechanism and a screw rod 4 .

[0037] The front end of the handle 1 is extended with a lever lip 11 and has a mounting cavity 15. The handle 1 is formed with a chute 12 near the lever lip 11; the handle 1 is provided with a strip-shaped hole 14 along the length direction, and the front end of the strip-shaped hole 14 is A partition 16 is formed between the mounting cavity 15 . The port of the installation cavity 15 is provided with a cover plate 17 capable of covering the transmission mechanism and the bevel gear 5 .

[0038] The transmission mechanism is located in the installation cavity 15 , specifically: the transmission mechanism includes a worm 3 and a bevel gear 31 , the bevel gear 31 rotates coaxially with the worm 3 and meshes with the bevel gear 5 for transmission. The worm 3 is arranged in the install...

Embodiment 2

[0046] Example 2, such as Figure 7 and Figure 8 As shown, the transmission mechanism in this embodiment includes a worm 3, a first gear 32 and a second gear 30, and the first gear 32 rotates coaxially with the worm 3; Gear teeth 33 and bevel teeth 34 meshed with bevel gear 5 for transmission. The handle 1 is provided with a strip-shaped slot 17 along the length direction, and a partition 16 is formed between the front end of the strip-shaped slot 17 and the installation cavity 15 . Refer to Example 1 for other structures.

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PUM

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Abstract

An adjustable wrench comprises a handle, an adjustable wrench lip, a transmission mechanism and a screw rod, and is characterized in that a strip-shaped hole or a strip-shaped groove is formed in the handle in the length direction; a separating part is formed between the front end of the strip-shaped hole or strip-shaped groove and a mounting cavity; the screw rod is inserted from the end opening of a sliding groove, and then penetrates through the separating part; the front and rear ends of the screw rod can be rotationally arranged in the separating part and on the inner wall at the rear end of the strip-shaped hole or strip-shaped groove respectively; a pushing button is positioned in the strip-shaped hole or strip-shaped groove, and can slide up and down to drive the screw rod to rotate. Compared with the prior art, the adjustable wrench provided by the invention has the advantages that as the screw rod is inserted from the end opening of the sliding groove, and then penetrates through the separating part, grooving in the separating part is not needed, and the damage to the whole adjustable wrench is relatively low; the adjustable wrench is uniform in stress and high in overall strength, so that the screw rod is prevented from falling off when the adjustable wrench is broken at random.

Description

technical field [0001] The invention relates to a wrench (also known as a wrench), which belongs to the technical field of hardware tools. Background technique [0002] The opening width of the adjustable wrench can be adjusted within a certain range. It is a tool used to fasten and loosen nuts and bolts of different specifications. It is widely used in the assembly, repair and maintenance of mechanical equipment in various fields. The basic structure includes The handle, movable lip and worm, the front end of the handle is extended with a fixed lip, the worm is rotatably installed in the installation cavity at the front end of the handle, the bottom of the movable lip is formed with worm teeth matching with the worm, and the movable lip can slide The ground is located at the front end of the handle and forms a wrench opening with the wrench lip. The size of the wrench opening can be realized by turning the worm with the thumb. [0003] Because the adjustment of the existin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/14B25B13/16
CPCB25B13/14B25B13/16
Inventor 陆亚明
Owner 陆亚明
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