CN112518641A

CN112518641A - Double-ratchet wrench

Info

Publication number: CN112518641A
Application number: CN202011464793.4A
Authority: CN
Inventors: 喻丹; 柳叶; 罗珊; 熊小军; 何卫周; 朱炳煜
Original assignee: CSSC Marine Power Co Ltd
Current assignee: CSSC Marine Power Co Ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-03-19

Abstract

The invention discloses a double-ratchet wrench, which comprises a sleeve, a first ratchet wheel, a connecting handle and a second ratchet wheel, wherein the upper end of the sleeve is sleeved on a square head of the first ratchet wheel, two ends of the connecting handle are respectively inserted into a connecting end of the first ratchet wheel and a connecting end of the second ratchet wheel and are respectively fixed through connecting mechanisms on two sides of the connecting end of the first ratchet wheel and the connecting end of the second ratchet wheel, and the second ratchet wheel extends out of an operating handle. The invention has simple structure, small volume, convenient carrying, wide application range, high flexibility and serial production, and can quickly replace the applicable sleeve according to the requirement of the specification of the bolt when in use. The bolt dismounting device adopts a bidirectional double-ratchet structure, realizes the purpose that the driving force of the operating handle and the driving force of the bolt are different in direction by the direction change of the double ratchet, realizes the bolt dismounting operation in a part of narrow space by the bidirectional reciprocating motion of the ratchet wrench, can also use the stressing rod for dismounting in a limited space, and has very convenient operation and high working efficiency.

Description

Double-ratchet wrench

Technical Field

The invention relates to a wrench used in a fitter operation process, in particular to a wrench suitable for being used in a narrow space, and belongs to the technical field of fitter tools.

Background

When carrying out pincers worker assembly operation, especially when the dismouting some bolts, owing to receive the space restriction, can't use the power application pole on ordinary spanner, often need use the hand hammer to strike or use special curved spanner to dismantle, bring inconvenience for the operation process, the operation is difficult, and work efficiency is low. In addition, the existing common spanner can only disassemble and assemble the bolt or the nut with single specification, and has small application range and low flexibility.

Disclosure of Invention

The invention aims to provide a double-ratchet wrench which is simple in structure, suitable for operation in a narrow space and capable of disassembling and assembling bolts of various specifications.

The invention is realized by the following technical scheme:

the utility model provides a double-ratchet wrench, includes sleeve, first ratchet, connection handle and second ratchet, and the sleeve upper end cup joints on the square head of first ratchet, and the connection handle both ends are pegged graft respectively in first ratchet link and second ratchet link to it is fixed through the coupling mechanism of first ratchet link and second ratchet link both sides respectively, and the second ratchet outwards extends operating handle.

The object of the invention is further achieved by the following technical measures.

In the double-ratchet wrench, the connecting mechanism includes a steel ball, a spring and a plug, the steel ball is disposed at the bottom of a radial hole at one side of the first ratchet connecting end or the second ratchet connecting end, the plug is screwed at the top of the radial hole, the spring is disposed in the radial hole, and two ends of the spring respectively abut against the top of the steel ball and the bottom of the plug; one side of the connecting handle is provided with an inserting groove, and the lower side of the steel ball is clamped in the inserting groove.

In the above-mentioned double ratchet wrench, the first ratchet and the second ratchet are both bidirectional ratchets.

In the double-ratchet wrench, a knurling is formed at the upper end of the operating handle.

The invention has simple structure, small volume, convenient carrying, wide application range, high flexibility and serial production, and can quickly replace the applicable sleeve according to the requirement of the specification of the bolt when in use. The bolt dismounting device adopts a bidirectional double-ratchet structure, realizes the purpose that the driving force of the operating handle and the driving force of the bolt are different in direction by the direction change of the double ratchet, realizes the bolt dismounting operation in a part of narrow space by the bidirectional reciprocating motion of the ratchet wrench, can also use the stressing rod for dismounting in a limited space, and has very convenient operation and high working efficiency.

Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of section I of FIG. 1;

FIG. 3 is an enlarged view taken from the direction A of FIG. 1;

fig. 4 is a schematic view of the state of use of the present invention.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in fig. 1, 2 and 3, the present invention comprises a sleeve 1, a first ratchet 2, a connecting shank 3 and a second ratchet 4. First ratchet 2 and second ratchet 4 are two-way ratchet, sleeve 1's upper end cup joints on first ratchet 2's square head 21, peg graft respectively in first ratchet 2's link and second ratchet 4's link at the both ends of connecting handle 3, and it is fixed respectively through coupling mechanism 5 of first ratchet 2's link and second ratchet 4's link both sides, second ratchet 4 outwards extends operating handle 41, operating handle 41 upper end is equipped with annular knurl 42, can be anti-skidding, can connect the application of force pole once more on the operating handle 41 during use, increase dismouting moment. The connecting mechanism 5 comprises a steel ball 51, a spring 52 and a plug 53, the steel ball 51 is arranged at the bottom of the radial hole 22 at one side of the connecting end of the first ratchet wheel 2 or the connecting end of the second ratchet wheel 4, the plug 53 is screwed at the top of the radial hole 22, the spring 52 is arranged in the radial hole 22, and two ends of the spring respectively abut against the top of the steel ball 51 and the bottom of the plug 53. One side of the connecting handle 3 is provided with a plug-in groove 31, and the lower side of the steel ball 51 is clamped in the plug-in groove 31.

As shown in FIG. 4, both sides of the bolt to be removed are walls, the operation space is small, when the bolt is removed in a narrow space by using the bolt removing device, the driving force of the operation handle 41 is F1, the driving force of the bolt to be removed is F, the directions of the two are different, and the bolt can be easily removed by the bidirectional reciprocating motion of the operation handle 41.

In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.

Claims

1. A double ratchet wrench, comprising: including sleeve, first ratchet, connection handle and second ratchet, the sleeve upper end cup joints on the square head of first ratchet, and the connection handle both ends are pegged graft respectively in first ratchet link and second ratchet link to it is fixed through the coupling mechanism of first ratchet link and second ratchet link both sides respectively, and the second ratchet outwards extends operating handle.

2. The dual ratchet wrench of claim 1, wherein: the connecting mechanism comprises a steel ball, a spring and a plug, the steel ball is arranged at the bottom of a radial hole on one side of the first ratchet wheel connecting end or the second ratchet wheel connecting end, the plug is screwed at the top of the radial hole, the spring is arranged in the radial hole, and two ends of the spring respectively abut against the top of the steel ball and the bottom of the plug; one side of the connecting handle is provided with an inserting groove, and the lower side of the steel ball is clamped in the inserting groove.

3. The dual ratchet wrench of claim 1, wherein: the first ratchet wheel and the second ratchet wheel are both bidirectional ratchet wheels.

4. The dual ratchet wrench of claim 1, wherein: and a knurling is arranged at the upper end of the operating handle.