CN110712160A - Universal adjustable spanner - Google Patents

Abstract

The invention discloses a universal adjusting wrench which comprises a wrench head, a long nut, a screw rod part, a rotating part, a chain part, a transition part and a handle part. The wrench head part comprises a plate opening part which is used for buckling a nut or a bolt; one end of the long nut is fixedly connected with the tail end of the wrench head; one end of the screw rod part is screwed into the other end of the long nut; the rotating part is fixedly connected with the other end of the screw part and can drive the screw part to screw in or screw out the long nut; one end of the chain part is fixedly connected with the rotating part; the transition part is fixedly connected with the other end of the chain part; the handle part is connected with the transition part. The universal adjusting wrench has the advantages of being capable of adapting to small space and inconvenient to disassemble and install working conditions.

Description

Universal adjustment wrench

technical field

The present invention relates to the field of equipment maintenance, in particular to a universal adjusting wrench which can be applied to narrow spaces.

Background technique

The existing disassembly and assembly tools need to be gradually disassembled for the parts where the space is narrow and inconvenient for disassembly and installation, and cannot be directly disassembled and assembled, the workload is increased, and the maintenance efficiency is reduced.

Disadvantages of the prior art: the assembling part is deep, the space is narrow and the disassembly and assembly are impossible; the existing wrench is lengthened or the steering angle is limited.

The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a universal adjustment wrench, which can adapt to the working conditions of narrow space and inconvenient disassembly and installation.

To achieve the above object, the present invention provides a universal adjustment wrench, which includes a wrench head, a long nut, a screw part, a rotating part, a chain part, a transition part and a handle part. The wrench head includes a plate mouth, which is used to fasten nuts or bolts; one end of the long nut is fixed to the tail end of the wrench head; one end of the screw part is screwed into the other end of the long nut; the rotating part and the screw part The other end of the chain part is fixedly connected, and the rotating part can drive the screw part to screw in or out the long nut; one end of the chain part is fixedly connected to the rotating part; the transition part is fixedly connected to the other end of the chain part; the handle part is connected to the transition part.

In a preferred embodiment, the wrench head further includes an adjustment part, which can adjust the size of the plate mouth.

In a preferred embodiment, the universal adjustment wrench further includes a locking nut and a connecting rod portion. The locking female is screw-locked on the long nut and is located between the long nut and the rotating part; the connecting rod part is arranged between the transition part and the handle part.

In a preferred embodiment, the handle portion is made of elastic non-metallic material.

In a preferred embodiment, the surface of the handle portion is provided with knurling.

Compared with the prior art, the universal adjustment wrench of the present invention has the following beneficial effects: it can adapt to the disassembly and assembly of components in areas where the assembly site is deep and the space is narrow, and can bypass multiple obstacles through the chain to disassemble and install nuts or bolts.

Description of drawings

FIG. 1 is a schematic structural diagram of a universal adjustment wrench according to an embodiment of the present invention.

Description of main reference signs:

1-wrench head, 11-adjustment part, 12-plate mouth part, 2-long nut, 3-locking nut, 4-screw part, 5-rotation part, 6-chain part, 7-transition part, 8- Link part, 9-grip part.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprising" or its conjugations such as "comprising" or "comprising" and the like will be understood to include the stated elements or components, and Other elements or other components are not excluded.

As shown in FIG. 1 , FIG. 1 is a schematic structural diagram of a universal adjustment wrench according to an embodiment of the present invention. A universal adjustment wrench according to a preferred embodiment of the present invention includes a wrench head 1, a long nut 2, a locking nut 3, a screw part 4, a rotating part 5, a chain part 6, a transition part 7, a connecting rod part 8 and Grip part 9.

In some embodiments, the wrench head 1 includes a plate mouth portion and an adjustment portion, the plate mouth portion is used to fasten nuts or bolts, and the adjustment portion can adjust the size of the plate mouth portion. One end of the long nut 2 is fixedly connected with the tail end of the wrench head 1; one end of the screw part 4 is screwed into the other end of the long nut 2; the locking nut 3 is screw-locked on the long nut 2, and is located between the long nut 2 and the rotating part 5; the rotating part 5 is fixedly connected with the other end of the screw part 4, and the rotating part 5 can drive the screw part 4 to screw in or out the long nut 2; one end of the chain part 6 is fixedly connected with the rotating part 5; the connecting rod part 8 It is arranged between the transition part 7 and the handle part 9 , one end of which is fixed to the transition part 7 , and the other end is fixed to the handle part 9 .

In some embodiments, the surface of the handle portion 9 is provided with knurling, and the handle portion 9 is made of a non-metallic material with elasticity, such as rubber, plastic or a combination of the two.

The manufacturing process of the universal adjustment wrench of the present invention is as follows: first, intercept the wrench head 1 of a common flap, and weld a long nut 2 at its tail end, and intercept a section of the screw part 4 that matches the thread of the long nut 2, One end of the screw part 4 is screwed with a corresponding nut, and the nut and the screw part 4 are welded to death, and then a nut is superimposed on the nut, and then a piece of chain is intercepted on the welded nut as the chain part 6. , one end of the chain has been welded together, and the other end of the chain is also welded together. A transition part 7 is formed by stacking two nuts together. Select a screwdriver to cut off the head of the knife, leaving only the knife rod and the handle part 9. Use a knife The rod is used as a connecting rod and the transition part 7 is welded together; screw a nut on the screw part as a locking nut, screw one end of the screw part into the long nut, and lock it with the locking nut to complete the universal adjustment Making a wrench.

The use process of the universal adjustment wrench of the present invention is as follows: first, according to the space conditions of the working position, the depth of screwing the screw part into the long nut is properly adjusted, so that the lever arm between the rotating part 5 and the plate mouth is as long as possible Easy to operate and labor-saving; use the direction variability of the chain to bypass the obstacle and send the wrench head 1 to the position where the bolt and nut need to be removed or installed, adjust the adjustment part to make the plate mouth to the appropriate size and snap on the bolt and nut, the operator The bolt and nut can be tightened or loosened by holding the handle 9 by hand and pulling in the direction of the chain.

To sum up, the universal adjustment wrench of the present invention has the following advantages: it can adapt to the disassembly and assembly of components in a region with a deep assembly site and a narrow space, and can bypass multiple obstacles through a chain to disassemble and install nuts or bolts.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many changes and modifications are possible in light of the above teachings. The exemplary embodiments were chosen and described for the purpose of explaining certain principles of the invention and their practical applications, to thereby enable others skilled in the art to make and utilize various exemplary embodiments and various different aspects of the invention. Choose and change. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims (5)

1. An adjustable universal wrench, comprising:

the wrench head comprises a plate opening part, and the plate opening part is used for buckling a nut or a bolt;

one end of the long nut is fixedly connected with the tail end of the wrench head part;

one end of the screw rod part is screwed into the other end of the long nut;

the rotating part is fixedly connected with the other end of the screw part and can drive the screw part to be screwed in or out of the long nut;

a chain portion having one end fixed to the rotating portion;

a transition portion fixedly connected to the other end of the chain portion; and

a handle portion connected with the transition portion.

2. The universal adjustment wrench of claim 1, wherein the wrench head further comprises an adjustment portion capable of adjusting the size of the plate mouth.

3. The universal adjustment wrench of claim 1, further comprising:

a locking nut which is screwed on the long nut and is positioned between the long nut and the rotating part; and

a link portion disposed between the transition portion and the handle portion.

4. The universal adjustment wrench of claim 1, wherein the gripping portion is formed of a resilient non-metallic material.

5. The universal adjustment wrench of claim 4, wherein a surface of the grip portion is knurled.

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