CN219726019U - Multipurpose wrench with adjustable wrench opening - Google Patents

Abstract

The utility model belongs to the technical field of subway operation safety maintenance, and solves the problem of portability of a spanner for maintenance. The utility model relates to a multipurpose wrench with an adjustable wrench opening size, which comprises a wrench body, two wrench opening clamping blocks and two groups of elastic jacking structures; the wrench body consists of a wrench head and a wrench handle connected to the outside of one side of the wrench head; the spanner head is of an annular structure with an installation cavity inside; the two spanner opening clamping blocks are relatively and parallelly arranged in the mounting cavity of the spanner head in a radial movable mode, and are respectively internally limited through one end baffle plate; the inner sides of the two jaw clamping blocks are provided with a guide inclined plane positioned at the upper part and a vertical clamping action surface positioned at the lower part, and a jaw area for clamping a workpiece to be operated is formed between the vertical clamping action surfaces of the two jaw clamping blocks; the two groups of elastic jacking structures are respectively arranged at the outer sides of the two jaw clamping blocks and form jacking fit with the outer side parts of the corresponding jaw clamping blocks. The wrench is convenient to operate and has good applicability.

Description

Multipurpose wrench with adjustable wrench opening

Technical Field

The utility model belongs to the technical field of subway operation safety maintenance, relates to an auxiliary tool wrench for maintenance, and in particular relates to a multipurpose wrench with an adjustable wrench opening.

Background

When subway operation is performed for station-keeping safety inspection, wrenches with various sizes are often required to be used for disassembling, installing and fastening screws, bolts and nuts on station equipment. There are a variety of dimensional specifications for the above-mentioned structural components on the in-site equipment. In the case of in-site safety inspection, repair and maintenance, a socket wrench or a set of wrenches with various sizes and specifications is required to be replaced, and the carrying and the use are inconvenient. Therefore, it is necessary to design a wrench with better applicability to meet the use requirements of products with various dimensions by one wrench.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the multipurpose wrench with adjustable wrench opening size, which is convenient to operate and has good applicability.

The above object of the present utility model is achieved by the following technical solutions:

the utility model provides a spanner with adjustable spanner opening size, includes spanner body, two spanner opening clamp splice, two sets of elasticity roof pressure structures; the wrench body consists of a wrench head and a wrench handle connected to the outside of one side of the wrench head; the spanner head is of an annular structure with an installation cavity arranged inside; the two spanner opening clamping blocks are relatively and parallelly arranged in the mounting cavity of the spanner head in a radial movable mode, and are respectively internally limited through one end baffle plate; a guiding inclined plane positioned at the upper part and a vertical clamping action surface positioned at the lower part are arranged at the inner sides of the two jaw clamping blocks, and a jaw area for clamping a workpiece to be operated is formed between the vertical clamping action surfaces of the two jaw clamping blocks; the two groups of elastic jacking structures are respectively arranged at the outer sides of the two jaw clamping blocks and form jacking fit with the outer side parts of the corresponding jaw clamping blocks.

Two mounting tables are symmetrically arranged in the mounting cavity of the spanner head and close to one end, the two mounting tables are integrally connected with the inner cavity wall, and a guide groove is formed in the middle of each of the two mounting tables; the end baffle is fixed at the inner side of the mounting table at a position corresponding to the guide groove through a screw; an upper pressing block is respectively fixed on two sides of the mounting table corresponding to the guide groove, and the upper pressing blocks on two sides extend into the upper end of the guide groove; the jaw clamping block consists of a lower guide part and an upper clamping action part, the width of the upper clamping part is smaller than that of the lower guide part, and the thickness of the upper clamping part is larger than that of the lower guide part; the lower guide parts of the two jaw clamping blocks can be slidably embedded in the guide grooves on the two mounting tables.

The elastic jacking structure comprises two jacking screws and two jacking springs; two threaded holes are formed in the corresponding side wall of the spanner head, two jacking screws are respectively arranged in the two threaded holes in a penetrating mode through threaded matching, and jacking heads are fixed at the inner ends of the two screws; the two jacking springs are respectively inserted into the blind holes on the outer sides of the corresponding spanner jaw clamping blocks, the outer ends of the jacking springs are in compression contact with the jacking heads at corresponding positions, and the inner ends of the jacking springs compress the bottoms of the blind holes.

Moreover, vertical stripes for increasing friction force are densely distributed on the vertical contact action surface.

The utility model has the advantages and positive effects that:

1. according to the wrench, the two wrench opening clamping blocks are oppositely arranged in the mounting cavity of the wrench head, the two wrench opening clamping blocks can move relatively in the radial direction, elastic force is applied to the two wrench opening clamping blocks through the group of elastic jacking structures, and the adjustment of the wrench opening size formed by the inner side faces of the two wrench opening clamping blocks in a certain size range can be realized, so that screwing and unscrewing operations of to-be-operated pieces with various sizes can be met, better applicability is achieved, the wrench is suitable for operation of parts with various sizes, and the wrench is convenient for a user to carry.

2. The inner side of the wrench opening clamping block adopts the structure of the upper guide inclined plane and the vertical clamping action plane positioned at the lower part, and when the wrench is arranged on the to-be-operated piece, the wrench can be smoothly guided into and clamped on two parallel planes on the to-be-operated piece through the guide inclined planes at the two sides, so that the clamping of the to-be-operated piece is realized, and the wrench opening clamping block has the advantage of convenience in operation.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a state of use reference diagram of the present utility model;

fig. 3 is a perspective view of the present utility model.

Detailed Description

The structure of the present utility model will be further described by way of examples with reference to the accompanying drawings. It should be noted that the present embodiments are illustrative and not restrictive.

Referring to fig. 1-3, the utility model relates to a multipurpose wrench with adjustable wrench opening, which comprises the following steps: comprises a wrench body, two wrench opening clamping blocks 7 and two groups of elastic jacking structures.

The wrench body is composed of a wrench head 1 and a wrench handle 9 connected to the outside of one side of the wrench head. The spanner head is of an annular structure with an installation cavity arranged inside. Two mounting tables 2 are symmetrically arranged in the mounting cavity of the spanner head and close to one end, the two mounting tables are integrally connected with the inner cavity wall, and a guide groove 6 is formed in the middle of each of the two mounting tables. An end baffle plate 8 is fixed at the inner side of the mounting table corresponding to the guide groove through a screw, and plays a role in limiting the corresponding jaw clamping block inserted into the guide groove in the radial direction. An upper pressing block 3 is respectively fixed at the two sides of the mounting table corresponding to the guide groove through screws, and the upper pressing blocks at the two sides extend to the upper end of the guide groove, so that the axial limiting effect of the corresponding spanner jaw clamping blocks inserted into the guide groove in the axial direction is achieved.

The jaw clamping block is composed of a lower guide part and an upper clamping action part, the width of the upper clamping part is smaller than that of the lower guide part, and the thickness of the upper clamping part is larger than that of the lower guide part. The lower guide parts of the two spanner head clamping blocks are respectively embedded in the guide grooves on the two mounting tables in a sliding way along the radial direction of the spanner head. Two blind holes are respectively arranged on the outer sides of the two spanner jaw clamping blocks. The inner sides of the upper clamping action parts of the two jaw clamping blocks are provided with an upper guide inclined plane 7.1 and a lower vertical clamping action surface 7.2. In order to improve the contact friction force with the piece to be clamped, vertical stripes for increasing the friction force are densely distributed on the vertical contact action surface.

The two groups of elastic jacking structures are respectively connected between the outer sides of the two spanner jaw clamping blocks and the corresponding side walls of the spanner head. Specifically, each group of spring constant pressure structure is composed of two jacking screws 4 and two jacking springs. Two threaded holes are formed in the corresponding side wall of the spanner head, two jacking screws are respectively arranged in the two threaded holes in a penetrating mode through threaded matching, and jacking heads 5 are fixed at the inner ends of the two screws. The two jacking springs are respectively inserted into the blind holes at the outer sides of the corresponding spanner jaw clamping blocks, the outer ends of the jacking springs are in compression contact with the jacking heads at the corresponding positions, and the inner ends of the jacking springs compress the bottoms of the blind holes, so that jacking of the spanner jaw clamping blocks is realized. The outer ends of the two screws are respectively provided with a symmetrical milling flat surface 4.1, so that the clamping is convenient, the position of the jacking screw is adjusted, and the adjustment of the jacking elasticity of the jacking spring is realized.

The vertical clamping action surfaces of the two jaw clamping blocks are arranged oppositely in parallel, and when the screw, the bolt or the nut is operated, the two parallel surfaces on the corresponding operation piece are clamped through the two vertical clamping action surfaces.

The wrench body can adopt an integrated structure, can also adopt a combined structure of the wrench head and the wrench handle, can be provided with an external thread joint at the outer side of the wrench head, and is provided with a matched threaded hole at one end of the wrench handle, and the external thread joint is in threaded connection with the threaded hole at the end part of the wrench handle.

The use of the adjustable multipurpose wrench of the opening size is described:

when the wrench is not used, under the action of the two groups of elastic jacking structures, the lower guide parts of the two wrench opening clamping blocks are tightly pressed with the end baffle plates on the corresponding mounting tables, and at the moment, the clamping space formed by the vertical clamping action surfaces of the two wrench opening clamping blocks is minimum. When the spanner is used for screwing or unscrewing the parts, the guide inclined planes of the two spanner opening clamping blocks are aligned with the two parallel surfaces on the part to be operated 10, the spanner is pushed inwards or downwards, the two spanner clamping blocks are pushed inwards, after the spanner moves to the state that the two vertical clamping action surfaces are completely contacted with the two planes on the part to be operated, the spanner stops moving, at the moment, the vertical clamping action surfaces form stable clamping with the two planes of the part to be operated through elasticity, and then the spanner handle is rotated, so that screwing or unscrewing operation on the parts is realized. The clamping space of the two vertical clamping action surfaces can be adjusted, so that the operation of various screws, bolts or nuts can be satisfied within a certain size range, and the less applicability is achieved.

Although the embodiments of the present utility model and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the embodiments and the disclosure of the drawings.

Claims (4)

1. The utility model provides a multi-purpose spanner with adjustable spanner mouth size which characterized in that: comprises a wrench body, two wrench opening clamping blocks and two groups of elastic jacking structures; the wrench body consists of a wrench head and a wrench handle connected to the outside of one side of the wrench head; the spanner head is of an annular structure with an installation cavity arranged inside; the two spanner opening clamping blocks are relatively and parallelly arranged in the mounting cavity of the spanner head in a radial movable mode, and are respectively internally limited through one end baffle plate; a guiding inclined plane positioned at the upper part and a vertical clamping action surface positioned at the lower part are arranged at the inner sides of the two jaw clamping blocks, and a jaw area for clamping a workpiece to be operated is formed between the vertical clamping action surfaces of the two jaw clamping blocks; the two groups of elastic jacking structures are respectively arranged at the outer sides of the two jaw clamping blocks and form jacking fit with the outer side parts of the corresponding jaw clamping blocks.

2. The adjustable spanner according to claim 1, wherein: two mounting tables are symmetrically arranged in the mounting cavity of the spanner head and close to one end, the two mounting tables are integrally connected with the inner cavity wall, and a guide groove is formed in the middle of each of the two mounting tables; the end baffle is fixed at the inner side of the mounting table at a position corresponding to the guide groove through a screw; an upper pressing block is respectively fixed on two sides of the mounting table corresponding to the guide groove, and the upper pressing blocks on two sides extend into the upper end of the guide groove; the jaw clamping block consists of a lower guide part and an upper clamping action part, the width of the upper clamping part is smaller than that of the lower guide part, and the thickness of the upper clamping part is larger than that of the lower guide part; the lower guide parts of the two jaw clamping blocks can be slidably embedded in the guide grooves on the two mounting tables.

3. The adjustable spanner according to claim 1, wherein: the elastic jacking structure comprises two jacking screws and two jacking springs; two threaded holes are formed in the corresponding side wall of the spanner head, two jacking screws are respectively arranged in the two threaded holes in a penetrating mode through threaded matching, and jacking heads are fixed at the inner ends of the two screws; the two jacking springs are respectively inserted into the blind holes on the outer sides of the corresponding spanner jaw clamping blocks, the outer ends of the jacking springs are in compression contact with the jacking heads at corresponding positions, and the inner ends of the jacking springs compress the bottoms of the blind holes.

4. The adjustable spanner according to claim 1, wherein: vertical stripes for increasing friction force are densely distributed on the vertical contact action surface.