CN210998409U

CN210998409U - Wrench with adjustable jaw

Info

Publication number: CN210998409U
Application number: CN201922183111.1U
Authority: CN
Inventors: 贾会军; 黄光辉
Original assignee: China Railway 12th Bureau Group Co Ltd; China Railway 12th Bureau Group Electrification Engineering Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; China Railway 12th Bureau Group Electrification Engineering Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-07-14
Anticipated expiration: 2029-12-09

Abstract

The utility model provides a wrench with adjustable jaws, belonging to the technical field of wrenches, comprising a wrench handle, a wrench handle jaw, a fastening bolt and a plurality of replaceable jaws; the wrench handle jaw is arranged at the end part of the wrench handle and is integrally formed with the wrench handle, and the wrench handle jaw is provided with a U-shaped clamping groove, a T-shaped channel and a first bolt hole; the transverse channel of the T-shaped channel is parallel to the side wall of the U-shaped clamping groove, and the vertical channel is perpendicular to the side wall of the U-shaped clamping groove and penetrates through the side wall of the U-shaped clamping groove; the first bolt holes are positioned on two sides of the vertical channel; the replaceable jaw comprises a T-shaped inserting block and a clamping block; the T-shaped inserting block is matched with the T-shaped groove, and a second bolt hole corresponding to the first bolt hole is formed in the vertical inserting plate; the clamping blocks are arranged on the vertical inserting plate of the T-shaped inserting block and are parallel to the horizontal inserting block, and the thickness of the clamping blocks with the replaceable jaws is different; the fastening bolt is connected with the jaw of the wrench handle and the jaw of the replaceable jaw. The wrench is simple in structure, high in working efficiency and suitable for the hexagon nuts with different calibers.

Description

Wrench with adjustable jaw

Technical Field

The utility model belongs to the technical field of the spanner, specifically disclose an adjustable spanner of keeping silent.

Background

When the bolts of different specifications are fastened and disassembled, the bolts are influenced by factors such as different specifications of the bolts, remote transition construction and the like, and if a large number of solid wrenches of different specifications are carried for working, the labor intensity of workers is increased. The adjustable spanner can adjust the distance between adjustable jaw and the fixed jaw according to the specification of nut, but at the in-process of pressing from both sides tightly repeatedly-rotatory-loosening nut, the adjustable jaw can take place to become flexible inevitably, make the clearance appear between keeping silent and the nut cause adjustable jaw spanner to follow the slippage on the hexagon nut, cause wearing and tearing to the edges and corners of nut, and the emergence of skidding is aggravated again to nut edges and corners wearing and tearing, so vicious circle, can cause the nut fastening not in place, the nut is dismantled not opened, serious person can collide with staff's finger and arm even, the life of nut has been reduced and the safety risk has been increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable spanner of keeping silent to improve the shortcoming that solid wrench and shifting spanner exist among the background art.

In order to achieve the above purpose, the utility model provides a wrench with adjustable jaw, which comprises a wrench handle, a wrench handle jaw, a fastening bolt and a plurality of replaceable jaws; the wrench handle jaw is arranged at the end part of the wrench handle and is integrally formed with the wrench handle, and a U-shaped clamping groove, a T-shaped channel and a first bolt hole are formed in the wrench handle jaw; the transverse channel of the T-shaped channel is parallel to the side wall of the U-shaped clamping groove, and the vertical channel is perpendicular to the side wall of the U-shaped clamping groove and penetrates through the side wall of the U-shaped clamping groove; the first bolt holes are positioned on two sides of the vertical channel; the replaceable jaw comprises a T-shaped inserting block and a clamping block; the T-shaped inserting block is matched with the T-shaped groove, and a second bolt hole corresponding to the first bolt hole is formed in the vertical inserting plate; the clamping blocks are arranged on the vertical inserting plate of the T-shaped inserting block and are parallel to the horizontal inserting block, and the thickness of the clamping blocks with the replaceable jaws is different; and the fastening bolt penetrates through the first bolt hole and the second bolt hole after the replaceable jaw is inserted into the T-shaped channel to connect the jaw of the wrench handle and the replaceable jaw.

Further, the first bolt holes positioned on two sides of the vertical channel are an invaginated circular bolt hole and an invaginated hexagonal bolt hole respectively; the nut of the fastening bolt is a circular nut matched with the sunken circular bolt hole, and the nut is a hexagon nut matched with the sunken hexagon bolt hole.

Furthermore, a cross-shaped groove is formed in the circular nut.

Compared with the prior art, the utility model discloses following beneficial effect has:

after the replaceable jaw with the proper size is selected according to the specification of the hexagon nut and installed, the wrench is placed on the nut to be screwed, the wrench is rotated clockwise or anticlockwise, the nut can be fastened or disassembled, the replaceable jaw with different sizes is replaced, and fastening and disassembling operations of the hexagon bolts with all specifications can be achieved. The utility model provides an adjustable spanner of keeping silent has improved the problem that current shifting wrench harms the nut easily and the heavy problem of current solid wrench, has alleviateed the burden that remote transition staff carried a large amount of different specification spanners, and the weight of load that more so carries solid wrench reduces 9 times, uses shifting wrench to reduce 5 times to the damage of nut more in the past, and convenient to carry, simple structure, work efficiency height are applicable to the hexagon nut of different bores.

Drawings

Fig. 1 is a schematic structural view of a wrench with adjustable jaws according to an embodiment of the present invention;

FIG. 2 is a schematic view of a wrench handle and a wrench jaw of the adjustable jaw wrench shown in FIG. 1;

FIG. 3 is a schematic view of a fastening bolt of the adjustable jaw wrench of FIG. 1;

FIG. 4 is a schematic view of a replaceable jaw of the adjustable jaw wrench of FIG. 1;

FIG. 5 is a mating view of a wrench grip jaw and a replaceable jaw.

In the figure: 1. a wrench handle; 2. turning a handle and keeping a jaw; 2.1, U-shaped clamping grooves; 2.2, T-shaped channels; 2.3, a first bolt hole; 3. fastening a bolt; 4. the jaw can be replaced; 4.1 and a second bolt hole.

Detailed Description

The embodiment provides a wrench with an adjustable jaw, which comprises a wrench handle 1, a wrench handle jaw 2, a fastening bolt 3 and a plurality of replaceable jaws 4; the wrench handle jaw 2 is arranged at the end part of the wrench handle 1 and is integrally formed with the wrench handle 1, and the wrench handle jaw 2 is provided with a U-shaped clamping groove 2.1, a T-shaped groove 2.2 and a first bolt hole 2.3; the transverse channel of the T-shaped channel 2.2 is parallel to the side wall of the U-shaped clamping groove 2.1, and the vertical channel is perpendicular to the side wall of the U-shaped clamping groove 2.1 and penetrates through the side wall of the U-shaped clamping groove 2.1; the first bolt holes 2.3 are positioned at two sides of the vertical channel; the replaceable jaw 4 comprises a T-shaped inserting block and a clamping block; the T-shaped inserting block is matched with the T-shaped groove, and a second bolt hole 4.1 corresponding to the first bolt hole 2.3 is formed in the vertical inserting plate; the clamping blocks are arranged on the vertical inserting plates of the T-shaped inserting blocks and are parallel to the horizontal inserting blocks, and the thickness of the clamping blocks of the plurality of replaceable jaws 4 is different; the fastening bolt 3 passes through the first bolt hole 2.3 and the second bolt hole 4.1 after the replaceable jaw 4 is inserted into the T-shaped channel 2.2, and connects the wrench handle jaw 2 and the replaceable jaw 4.

After the replaceable jaw 4 with the proper size is selected according to the specification of the hexagon nut and installed, the wrench is placed on the nut to be screwed, the wrench is rotated clockwise or anticlockwise, the nut can be fastened or disassembled, and the replaceable jaw 4 with different sizes is replaced, so that the hexagon bolts with all specifications can be fastened and disassembled.

Further, the first bolt holes 2.3 positioned at two sides of the vertical channel are an invaginated circular bolt hole and an invaginated hexagonal bolt hole respectively; the nut of fastening bolt 3 is the circular nut with undercut circular bolt hole complex, and the nut is the hexagon nut with undercut hexagon bolt hole complex, can avoid protruding after fastening bolt 3 has installed, keeps silent 2 surperficial parallel and level with pulling the handle, and the nut is rotatory when setting up of undercut hexagon bolt hole and hexagon nut avoids installing fastening bolt 3.

Further, a cross-shaped recess is provided on the circular nut to facilitate mounting and dismounting of the fastening bolt 3 using a screwdriver.

Further, wrench handle 1, wrench handle are kept silent 2, fastening bolt 3 and a plurality of removable keeping silent 4 all adopt steel material.

The feasibility of the adjustable-jaw wrench is verified by practice: in the construction process of Changchun subway No. 2 line, engineering construction begins to rely on ordinary shifting wrench completely, after a certain bolt is dismantled many times, the edges and corners of this nut can wear and tear, when carrying out the operation next time, can take place to skid, the nut fastening is not in place, the nut is dismantled not to open, serious person knocks down the phenomenon such as staff's finger and arm, summarize through site operation afterwards, through the design of item department technical personnel, produce this kind of multi-functional spanner, when construction in the work progress or the place of transition construction, need not carry the solid wrench of a large amount of different specifications, it is very convenient, the operation is simple, carry lightly, and can guarantee construction quality, certain spreading value and use value have.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spanner with adjustable jaw is characterized by comprising a spanner handle, a spanner handle jaw, a fastening bolt and a plurality of replaceable jaws;

the wrench handle jaw is arranged at the end part of the wrench handle and is integrally formed with the wrench handle, and a U-shaped clamping groove, a T-shaped channel and a first bolt hole are formed in the wrench handle jaw;

the transverse channel of the T-shaped channel is parallel to the side wall of the U-shaped clamping groove, and the vertical channel is perpendicular to the side wall of the U-shaped clamping groove and penetrates through the side wall of the U-shaped clamping groove;

the first bolt holes are positioned on two sides of the vertical channel;

the replaceable jaw comprises a T-shaped inserting block and a clamping block;

the T-shaped inserting block is matched with the T-shaped groove, and the vertical inserting plate is provided with a second bolt hole corresponding to the first bolt hole;

the clamping blocks are arranged on the vertical inserting plates of the T-shaped inserting blocks and are parallel to the horizontal inserting blocks, and the thicknesses of the clamping blocks with replaceable jaws are different;

and the fastening bolt passes through the first bolt hole and the second bolt hole after the replaceable jaw is inserted into the T-shaped channel, and is used for connecting the jaw of the wrench handle and the replaceable jaw.

2. The adjustable jaw wrench according to claim 1, wherein the first bolt holes located on both sides of the vertical channel are an invaginated circular bolt hole and an invaginated hexagonal bolt hole, respectively;

the nut of the fastening bolt is a circular nut matched with the invaginated circular bolt hole, and the nut is a hexagon nut matched with the invaginated hexagon bolt hole.

3. The adjustable jaw wrench of claim 2, wherein the circular nut is provided with a cross-shaped slot.