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Improved Pipe Wrench

An improved pipe wrench technology, applied in the direction of wrench, manufacturing tools, wrench, etc., can solve the problems of easy collapse of pipe body or pipe wrench, tight arrangement of pipe body, hidden safety hazards, etc., to reduce the risk of accidents Probability, high-efficiency torsion of the pipe body, and the effect of preventing the jaws from falling off

Active Publication Date: 2018-08-24
WEIHAI JINDE TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pipe wrench is one of the commonly used hardware tools. The commonly used pipe wrench on the market includes two straight jaws. The distance between the straight jaws is adjusted by the screw to clamp the pipe body and turn the clamp arm to twist; The bite force between the mouth and the pipe body can only be adjusted by the screw, and the bite force of the pliers mouth cannot be further strengthened during the twisting process; Slipping off from the pipe body, the pipe body or pipe wrench is easy to collapse, and there is a certain safety hazard; at the same time, some pipe bodies are tightly arranged, and the pipe wrench cannot be twisted greatly after clamping the pipe body, so the work efficiency is extremely low, and the exhausting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] exist figure 1 , figure 2 In the first shown embodiment, the improved pipe wrench includes a pliers head 1 and a handle 2;

[0023] One side of the pliers head 1 is provided with a fixed pliers mouth 11, and the other side of the pliers head 1 is provided with a movable pliers mouth 12, and the movable pliers mouth 12 is parallel to the fixed pliers mouth 11; Between the mouths 12, an adjusting screw 3 is vertically installed, and the adjusting screw 3 can freely rotate around its own axis; a screw hole matching the adjusting screw 3 is provided on the movable jaw 12, and the adjusting screw 3 passes through the screw hole. The pincer head 1 protrudes from the hole, and a reset knob 31 is provided at the end of the adjusting screw rod 3 protruding from the pincer head 1; the movable jaw 12 can move close to or away from the fixed jaw 11 along the axis of the adjusting screw rod 3;

[0024] A driving gear 4 is also installed on the pliers head 1, and the adjusting scr...

Embodiment 2

[0032] exist image 3 In the shown second embodiment, different from the first embodiment, the clutch in this embodiment includes a coaxially arranged clutch unit 71, a transmission disc 72, and a sliding column 52; the clutch unit 71 is a push pop-up member , the push pop-up member can be compared to the reciprocating pop-up structure on an automatic ballpoint pen, which is relatively common; it will not be described in detail in this embodiment; the transmission disc 72 is meshed with the drive gear 4, and the transmission disc 72 is fixedly connected with the sliding column 52; The sliding column 52 is coaxial and engaged with the inner ring of the one-way bearing 21; the sliding column 52 can slide along its own axis; as image 3 As shown; when the clutch unit 71 pops up, the transmission disc 72 does not contact the drive gear 4; compared with Embodiment 1, the contact area between the transmission disc 72 and the drive gear 4 is larger, and the transmission stability and...

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Abstract

The invention relates to an improved pipe wrench. The improved pipe wrench comprises a wrench head and a handle. A fixed wrench jaw is arranged on one side of the wrench head while a movable wrench jaw is arranged on the other side thereof, an adjusting screw is mounted between the fixed wrench jaw and the movable wrench jaw vertically, and the movable wrench jaw is provided with a screw hole matching with the adjusting screw and can translationally move close to or away from the fixed wrench jaw along the axis of the adjusting screw. A drive gear is mounted on the wrench head and is connected with the adjusting screw through a drive gear set, a one-way bearing is mounted on the handle, the handle is fixedly connected with an outer race of the one-way bearing, and a clutch is mounted on the axis of the drive gear and is connected with an inner race of the one-way bearing. The improved pipe wrench is novel and unique in structure, convenient to use and capable of enhancing occlusal force of the wrench jaws effectively to prevent the wrench jaws from slipping, thereby being applicable to narrow spaces and wider in applicability.

Description

technical field [0001] The invention relates to a hardware tool, in particular to a pipe wrench. Background technique [0002] Pipe wrench is one of the commonly used hardware tools. The commonly used pipe wrench on the market includes two straight jaws. The distance between the straight jaws is adjusted by the screw to clamp the pipe body and turn the clamp arm to twist; The bite force between the mouth and the pipe body can only be adjusted by the screw, and the bite force of the pliers mouth cannot be further strengthened during the twisting process; Slipping off from the pipe body, the pipe body or pipe wrench is easy to collapse, and there is a certain safety hazard; at the same time, some pipe bodies are tightly arranged, and the pipe wrench cannot be twisted greatly after clamping the pipe body, so the work efficiency is extremely low, and the Very exhausting. Contents of the invention [0003] In view of the above problems, the present invention provides an impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/50
CPCB25B13/5058
Inventor 钱月珍
Owner WEIHAI JINDE TOOLS CO LTD
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