CN117162021A - Adjustable spanner - Google Patents

Abstract

The application relates to the technical field of wrenches, in particular to an adjustable wrench which comprises a wrench body, a ratchet wheel assembly, a reversing assembly and two drill joints; the ratchet wheel component comprises a pawl and a ratchet wheel which are matched with each other, and the ratchet wheel is rotatably arranged in the mounting cavity; the pawl is arranged in the mounting part, one end of the pawl is matched with the ratchet wheel, and the ratchet wheel can rotate clockwise or anticlockwise along with the mounting part under the drive of the handle. According to the electric drill, the rotating force arm can be prolonged through the handle, the screwing difficulty is reduced, the two-way ratchet wheel and the two-way pawl are matched, so that the handle can be reversely rotated after the handle is rotated for a certain angle in the screwing or unscrewing process, the handle is reset, the excessive angle such as 360 degrees is not required to be continuously rotated, and the problem of inconvenience in operation such as blockage caused by the rotation of the handle by the electric drill main body is avoided.

Description

Adjustable spanner

Technical Field

The application relates to the technical field of wrenches, in particular to an adjustable wrench.

Background

In the machining field, drilling machines, gun drills and the like are all very common hole machining tools, and when the drill bit is replaced, the drill key is used for loosening the drill chuck, and because the traditional drill key is used, the traditional drill key is required to be pressed by hands and rotated, the phenomenon of slipping can also occur, the abrasion of the drill chuck and the drill key is increased, the improper operation can also lead to the clamping of the drill bit to be not tight, and the drill bit can be worn or broken when the drill bit is drilled.

It is now necessary to provide an adjustable wrench to solve the inconvenient operation, the problem of easily skidding that exist among the prior art.

Disclosure of Invention

Aiming at the defects of the prior art, the application provides an adjustable spanner to solve the problem of inconvenient operation in the prior art.

In order to achieve the above purpose, the application adopts the following technical scheme: an adjustable wrench comprises a wrench body, a ratchet assembly, a reversing assembly and at least one drill joint; the wrench body comprises a handle and a mounting part; the mounting part is fixedly connected with the handle, and one side of the mounting part is provided with a mounting cavity;

the ratchet wheel component comprises a pawl and a ratchet wheel which are matched with each other, the ratchet wheel is rotatably arranged in the mounting cavity, and the drill joint and the ratchet wheel are coaxially fixed; the pawl is arranged in the mounting cavity, one end of the pawl is matched with the ratchet wheel, and the ratchet wheel can rotate clockwise or anticlockwise relative to the mounting part under the drive of the handle.

The beneficial effect of this scheme is: compared with the phenomenon that the existing drill key is inconvenient to operate by pressing and rotating by hands, the drill connector is integrated on the ratchet wheel, and the screwing and unscrewing operation of the drill chuck is realized by utilizing the wrench structure and the ratchet wheel characteristics; the rotary force arm can be prolonged through the handle, the screwing difficulty is reduced, the ratchet wheel and the pawl are matched to enable the handle to be reversely rotated after rotating a certain angle in the screwing or unscrewing process, the handle is reset, screwing or unscrewing operation can be completed by repeating the operation, continuous rotation of an excessive angle such as 360 degrees is not needed, and the problem of inconvenience in operation such as blockage caused by rotation of the handle by the electric drill main body is avoided.

Further, the pawl is a bidirectional pawl, the number of the ratchet wheels is two, the number of the drill joints is two, the reversing assembly comprises a switching button, a rotating block and a telescopic head, the rotating block is rotationally connected with the wrench body, a pressure spring is arranged in the rotating block, and two ends of the pressure spring are fixedly connected with the telescopic head and the rotating block respectively; the tail end of the bidirectional pawl is provided with symmetrical curve grooves, the pressure spring can enable the telescopic head to be abutted against the curve grooves at the tail end of the bidirectional pawl, the switching button is fixedly connected with the rotating block and is linked with the bidirectional pawl through the telescopic head, and the bidirectional ratchet wheel can be enabled to switch the rotatable direction.

Through two integrated brill joints, increase the application scope of spanner, through setting up the claw tooth and the curve groove structure of tail end of two-way pawl for the claw tooth is the face contact with the ratchet of two-way ratchet when supporting tight two-way ratchet, prevents that two-way ratchet from skidding, still through curve groove structure, makes the shift knob drive flexible head rotate the back, in the curve groove structure of roll-in correspondence one side, and supports tight recess under the effect of pressure spring, makes two-way pawl by spacing, further guarantees that two-way ratchet can not skid. In addition, the pawl tooth structure of the bidirectional pawl is not disturbed at all when the ratchet wheel idles reversely.

Further, the two drill joints are coaxially arranged. The structure is simple and compact.

Further, the two drill joints are not of the same size. The application range of the wrench is improved.

Further, the two drill joints are in interference fit with the bidirectional ratchet wheel. Simple structure and reliable connection.

Further, a plastic rubber sleeve is arranged outside the handle. Plays a role of skid resistance and protects operators.

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a front view of the present application;

FIG. 3 is a side view of the present application;

FIG. 4 is a schematic view of the structure of the mounting portion of the present application;

FIG. 5 is a schematic view of a ratchet assembly and reversing assembly of the present application.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the wrench comprises a wrench body 1, a handle 2, a mounting part 3, a mounting cavity 31, a cover plate 32, a bidirectional pawl 33, a bidirectional ratchet 34, a switching button 35, a rotating block 36, a telescopic head 37 and a drill joint 4.

Examples

An embodiment is shown in figures 1-4, and an adjustable spanner shown in figure 1 comprises a spanner body 1, a ratchet assembly, a reversing assembly and two drill joints 4; the wrench body 1 comprises a handle 2 and a mounting part 3, the mounting part 3 is fixedly connected with the handle 2, and as shown in fig. 2, two drill joints 4 are arranged at two sides of the wrench body 1; as shown in fig. 3, one side of the mounting part 3 is provided with a mounting cavity 31, a cover plate 32 is detachably arranged corresponding to the mounting cavity 31, and the cover plate 32 is detached, so that maintenance of the ratchet assembly or replacement of the drill joint 4 can be conveniently realized; the plastic rubber sleeve is arranged outside the handle 2, so that the handle is convenient to hold, and slipping and injury of operators during holding are avoided.

As shown in fig. 4, the ratchet assembly comprises a bidirectional pawl 33 and a bidirectional ratchet 34 which are matched with each other, a through hole is formed in the middle of the bidirectional ratchet 34, the bidirectional ratchet 34 is rotatably arranged in the mounting cavity 31, and the two drill joints 4 are in interference fit with the through hole of the bidirectional ratchet 34, so that the two drill joints 4 are symmetrically and coaxially arranged on two sides of the bidirectional ratchet 34 and coaxially rotate with the bidirectional ratchet 34; the bidirectional pawl 33 is rotatably arranged in the wrench body 1, one end of the bidirectional pawl 33 can be matched with the bidirectional ratchet wheel 34, the bidirectional ratchet wheel 34 can rotate clockwise or anticlockwise relative to the mounting part 3 under the drive of the handle 2, meanwhile, the bidirectional ratchet wheel 34 can idle in the opposite direction, the handle 2 is reset, the process is repeated to realize the conventional process without continuously rotating for an excessive angle such as 360 degrees, and the electric drill body is prevented from obstructing the rotation of the handle 2.

The reversing component comprises a switching button 35, a rotating block 36 and a telescopic head 37, wherein the rotating block 36 is rotationally connected with the wrench body 1, a pressure spring is arranged in the rotating block 36, two ends of the pressure spring are fixedly connected with the telescopic head 37 and the rotating block 36 respectively, the pressure spring is a pre-compressed spring in the embodiment and mainly provides elasticity for the telescopic head, the pressure spring can enable the telescopic head 37 to abut against the tail end of the bidirectional pawl 33, the switching button 35 is fixedly connected with the rotating block 36 and is linked with the bidirectional pawl 33 through the telescopic head 37, and the bidirectional ratchet 34 can be enabled to switch the rotatable direction.

As shown in fig. 5, the tail end of the bidirectional pawl 33 is provided with symmetrical curved grooves, after the switch button 35 is shifted, the telescopic head 37 slides into the curved groove on the corresponding side, and under the action of the compression spring, one end of the pawl tooth of the bidirectional pawl 33 abuts against the ratchet tooth of the bidirectional ratchet 34, at this time, the bidirectional ratchet 34 is unidirectional locked, and the pawl tooth of the bidirectional pawl 33 can not block the reverse rotation of the bidirectional ratchet 34, so that the bidirectional ratchet can be screwed like a conventional wrench, and the reverse idle rotation of the wrench can be realized in the process, so that the handle 2 is reset, and the operation of 360 degrees of continuous rotation of a conventional drill key can be realized by repeating the process.

The two drill joints 4 are different in size and can be matched with different drill chucks to improve the application range of the wrench, the drill joint 4 in the embodiment is identical to the existing drill key in structure and comprises a positioning cylinder and bevel gear, the structure and the characteristics of the positioning cylinder and the bevel gear are not repeated, and the two drill joints 4 are different in size, namely the diameter of the positioning cylinder and the size of the bevel gear are different to be matched with different drill chucks.

The specific implementation process is as follows:

when the drill chuck is required to be screwed or loosened, the switching button 35 is shifted to the required side, the drill joint 4 is meshed with the drill chuck and screwed like a conventional wrench, the characteristic of a ratchet wheel can be utilized in the process, the reverse idle rotation of the wrench is realized, the handle 2 is reset, the process is repeated, the operation that the conventional drill key is required to continuously rotate for 360 degrees can be realized, and the electric drill main body is prevented from obstructing the rotation of the handle 2.

The foregoing is merely exemplary embodiments of the present application, and specific technical solutions and/or common general knowledge of features that are known in the art are not described here too much. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, and these should also be regarded as the protection scope of the present application, which does not affect the effect of the implementation of the present application and the practical applicability of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (6)

1. An adjustable wrench is characterized by comprising a wrench body, a ratchet assembly, a reversing assembly and at least one drill joint; the wrench body comprises a handle and a mounting part; the mounting part is fixedly connected with the handle, and one side of the mounting part is provided with a mounting cavity;

the ratchet wheel assembly comprises a pawl and a ratchet wheel which are matched with each other, the ratchet wheel is rotatably arranged in the mounting cavity, and the drill joint and the ratchet wheel are coaxially fixed; the pawl is arranged in the mounting cavity, one end of the pawl is matched with the ratchet wheel, and the ratchet wheel can rotate clockwise or anticlockwise along with the mounting part under the drive of the handle.

2. The adjustable spanner of claim 1, wherein the pawl is a bidirectional pawl, the ratchet is a bidirectional ratchet, the drill joint is two, the reversing assembly comprises a switching button, a rotating block and a telescopic head, the rotating block is rotationally connected with the spanner body, a pressure spring is arranged in the rotating block, and two ends of the pressure spring are fixedly connected with the telescopic head and the rotating block respectively; the tail end of the bidirectional pawl is provided with symmetrical curve grooves, the pressure spring can enable the telescopic head to be abutted against the curve grooves at the tail end of the bidirectional pawl, the switching button is fixedly connected with the rotating block and is linked with the bidirectional pawl through the telescopic head, and the bidirectional ratchet wheel can be enabled to switch the rotatable direction.

3. An adjustable spanner according to claim 2 wherein the two drill joints are coaxially arranged.

4. An adjustable spanner as claimed in claim 3 wherein the two drill collars are of different sizes.

5. The adjustable spanner of claim 4 wherein the two drill collars are in interference fit with the bi-directional ratchet.

6. The adjustable spanner of claim 5 wherein a plastic sleeve is provided outside the handle.