CN110861022A - Universal wrench - Google Patents

Abstract

The invention provides an universal wrench which comprises a body, a guide pillar, a top block and an adjusting screw, wherein a through rectangular groove is formed in one end of the body, an assembly hole is formed in the end face of one end of the body, the bottom of the assembly hole penetrates through and extends out of the rectangular groove, the guide pillar is fixed in the assembly hole, the two ends of the guide pillar extend out of the rectangular groove, a guide hole matched with the guide pillar is formed in the top block and is sleeved on the guide pillar, a through threaded hole is formed in the end face of one end of the body, the adjusting screw is screwed into the threaded hole, and the end face of the threaded end of the adjusting screw. The invention provides an universal wrench, which can be suitable for hexagonal nuts of various nonstandard sizes by controlling the distance between a top block and a rectangular groove through an adjusting screw, and has the advantages of compact structure, low manufacturing cost, and simple and quick operation.

Description

a universal wrench

technical field

The invention belongs to the field of wrenches, and in particular relates to a universal wrench for a hexagonal nut.

Background technique

Tightening or loosening different specifications of hex nuts in workshop assembly requires different specifications of wrenches. Some special structures often require the design of non-standard hexagon nuts, which requires various wrenches. However, the frequency of use of non-standard hexagon nuts of the same specification is often low, which leads to waste of resources.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a universal wrench, which can control the distance between the top block and the rectangular groove by adjusting the screw, and can be applied to various non-standard size hexagonal nuts, with compact structure, low manufacturing cost, simple and fast operation. .

The present invention is achieved through the following technical solutions:

A universal wrench comprises a main body, a guide post, a top block and an adjusting screw. One end of the main body is provided with a through rectangular groove, an end face of one end of the main body is provided with an assembly hole, the bottom of the assembly hole passes through and extends out of the rectangular groove, and the guide post is fixed In the assembly hole, the two ends of the guide post protrude from rectangular grooves, the top block is provided with a guide hole matched with the guide post, the guide hole is sleeved on the guide post, and one end face of the main body is provided with a through threaded hole, and the adjusting screw is screwed into Threaded hole, the end face of the threaded end of the adjusting screw fits with the upper end face of the top block, loosen the adjusting screw when in use, put the hexagonal nut to be tightened or loosened into the gap between the rectangular slot and the top block, and tighten the adjusting screw , so that the top block and the rectangular groove hold the hexagonal nut, and the hexagonal nut can be tightened or loosened; then the adjustment screw can be loosened to separate the universal wrench from the hexagonal nut. Because the distance between the top block and the rectangular groove is continuously changing, the universal wrench can be applied to nuts of various non-standard sizes. The universal wrench has compact structure, low manufacturing cost, simple and fast operation, and is suitable for on-site production, Tightening or loosening of hex nuts during assembly.

The lower end surface of the top block is opposite to the groove surface of the rectangular groove, the lower end surface and the groove surface are both provided with grooves, and the two grooves can clamp the two top corners of the hexagonal nut, so that the clamping is more stable.

The groove is V-shaped, the included angle of the groove bottom is 120°, and the shape of the groove matches the top angle of the hexagonal nut, which can further improve the stability of clamping the hexagonal nut.

The groove structure is symmetrical with respect to the center line of the main body, and the top block and the two sides of the main body are subjected to more uniform force, thereby prolonging the service life.

The number of the guide posts is two, the two guide posts are symmetrically distributed along the center line of the body, and the assembling holes and the guide holes are also adjusted correspondingly, so that the guide of the top block is more stable and the hexagonal nut is clamped.

The threaded hole is located in the center of one end face of the body, so that the force of the top block is more balanced and the service life of the top block and the guide post is prolonged.

The adjustment screw is provided with an adjustment nut. During the repeated use of the wrench, the adjustment screw is prone to retreat due to shaking. The adjustment nut is set to position the adjustment screw to prevent the adjustment screw from retreating during use, avoid repeatedly tightening the adjustment screw, and improve the work. efficiency.

The guide post is provided with a spring. During the repeated use of the wrench, the adjusting screw is prone to retreat due to shaking. The elastic force of the spring ensures that the adjusting screw is tightly attached to the threaded hole to prevent shaking, thereby preventing the adjusting screw from retreating during use and avoiding repeated tightening. Adjust the screw to improve work efficiency.

The beneficial effects of the present invention are:

Compared with the prior art, the distance between the top block and the rectangular groove is controlled by adjusting the screw, which can be applied to hexagonal nuts of various non-standard sizes, with compact structure, low manufacturing cost, and simple and fast operation. Two opposite grooves are arranged, and the shape of the grooves matches the top angle of the hexagonal nut, which can further improve the stability of clamping the hexagonal nut. The universal wrench has a symmetrical structure, uniform force and long service life. By setting the adjusting nut or spring, the adjusting screw can be prevented from retreating during use, and the repeated tightening of the adjusting screw can be avoided, thereby improving the work efficiency.

Description of drawings

1 is a schematic structural diagram of Embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a body according to Embodiment 1 of the present invention;

3 is a schematic structural diagram of a top block according to an embodiment of the present invention;

4 is a schematic structural diagram of Embodiment 2 of the present invention;

5 is a schematic structural diagram of Embodiment 3 of the present invention;

FIG. 6 is a schematic structural diagram of Embodiment 4 of the present invention.

In the figure: 1- body, 2- guide post, 3- top block, 4- adjusting screw, 5- groove, 6- adjusting nut, 7- spring, 11- assembly hole, 12- rectangular slot, 13- threaded hole , 31-guide hole, 32-upper face, 33-lower face, 121-slot face.

Detailed ways

The technical solutions of the present invention are further described below, but the claimed scope is not limited to the description.

Example 1

As shown in Figures 1 to 3, a universal wrench, a universal wrench, includes a main body 1, a guide post 2, a top block 3 and an adjusting screw 4. One end of the main body 1 is provided with a through rectangular groove 12. One end face is provided with an assembly hole 11, the bottom of the assembly hole 11 passes through and extends out of the rectangular slot 12, the guide post 2 is fixed in the assembly hole 11, the two ends of the guide post 2 protrude from the rectangular slot 12, and the top block 3 The guide hole 31 matched with the column 2, the guide hole 31 is sleeved on the guide column 2, one end face of the main body 1 is provided with a through threaded hole 13, the adjusting screw 4 is screwed into the threaded hole 13, and the end face of the threaded end of the adjusting screw 4 is connected to the top block 3 The upper end face 32 of the upper end face 32 is fitted, loosen the adjusting screw 4 when in use, put the hexagonal nut to be tightened or loosened into the gap between the rectangular slot 12 and the top block 3, and tighten the adjusting screw 4 to make the top block 3 and the top block 3. The rectangular groove 12 holds the hexagonal nut, and the hexagonal nut can be tightened or loosened; then the adjusting screw 4 can be loosened to separate the universal wrench from the hexagonal nut. Because the distance between the top block 3 and the rectangular groove 12 is continuously variable, the universal wrench can be applied to nuts of various non-standard sizes. The universal wrench has a compact structure, low manufacturing cost, simple and fast operation, and is suitable for field applications. Tightening or loosening of hex nuts during production and assembly.

Embodiment 2

As shown in Figure 4, on the basis of the structure of Embodiment 1, the structure is adjusted as follows:

The lower end surface 33 of the top block 3 is opposite to the groove surface 121 of the rectangular groove 12. The lower end surface 33 and the groove surface 121 are both provided with grooves 5, and the two grooves 5 can clamp the two top corners of the hexagonal nut. Make the grip more stable.

The groove 5 is V-shaped, the included angle at the bottom of the groove 5 is 120°, and the shape of the groove 5 matches the top angle of the hexagonal nut, which can further improve the stability of clamping the hexagonal nut.

The structure of the groove 5 is symmetrical with respect to the center line of the main body 1, so that the force on both sides of the top block 3 and the main body 1 is more uniform, and the service life is prolonged.

The number of the guide posts 2 is two, and the two guide posts 2 are symmetrically distributed along the center line of the main body 1. The assembly hole 11 and the guide hole 31 are also adjusted accordingly, so that the top block 3 can be guided more stably and clamp the hexagon. nut.

The threaded hole 13 is located in the center of one end face of the main body 1 , so that the force of the top block 3 is more balanced, and the service life of the top block 3 and the guide post 2 is prolonged.

Two opposite grooves 5 are provided, and the shape of the grooves 5 matches the top angle of the hexagonal nut, which can further improve the stability of clamping the hexagonal nut. The universal wrench has a symmetrical structure, uniform force and long service life.

Embodiment 3

As shown in FIG. 5 , on the basis of the structure of the second embodiment, the adjusting screw 4 is provided with an adjusting nut 6 . During the repeated use of the wrench, the adjusting screw 4 tends to retreat due to shaking. 4. Positioning is performed to prevent the adjustment screw 4 from retreating during use, to avoid repeatedly tightening the adjustment screw 4, and to improve work efficiency.

Embodiment 4

As shown in FIG. 6 , on the basis of the structure of the second embodiment, the guide post 2 is provided with a spring 7. During the repeated use of the wrench, the adjusting screw 4 tends to retreat due to shaking, and the elastic force of the spring 7 ensures that the adjusting screw 4 It is in close contact with the threaded hole 13 to prevent shaking, thereby preventing the adjusting screw 4 from retreating during use, avoiding repeated tightening of the adjusting screw 4, and improving work efficiency.

The universal wrench provided by the invention controls the distance between the top block and the rectangular groove by adjusting the screw, which can be applied to various non-standard size hexagonal nuts, has compact structure, low manufacturing cost, simple and fast operation. Two opposite grooves are arranged, and the shape of the grooves matches the top angle of the hexagonal nut, which can further improve the stability of clamping the hexagonal nut. The universal wrench has a symmetrical structure, uniform force and long service life. By setting the adjusting nut or spring, the adjusting screw can be prevented from retreating in use, and the adjusting screw can be prevented from being repeatedly tightened, thereby improving the work efficiency.

Claims (8)

1. An universal wrench, which is characterized in that: the novel steel wire drawing device comprises a body (1), a guide pillar (2), a top block (3) and an adjusting screw (4), a through rectangular groove (12) is formed in one end of the body (1), an assembly hole (11) is formed in one end face of the body (1), the bottom of the assembly hole (11) penetrates through and extends out of the rectangular groove (12), the guide pillar (2) is fixed in the assembly hole (11), the rectangular groove (12) is formed in two ends of the guide pillar (2), a guide hole (31) matched with the guide pillar (2) is formed in the top block (3), the guide hole (31) is sleeved on the guide pillar (2), a through threaded hole (13) is formed in one end face of the body (1), the adjusting screw (4) is screwed into the threaded hole (13), and the end face of the threaded end of the adjusting screw (4) is attached to.

2. The universal wrench of claim 1, wherein: the lower end face (33) of the top block (3) is opposite to the groove face (121) of the rectangular groove (12), and the lower end face (33) and the groove face (121) are both provided with grooves (5).

3. The universal wrench of claim 2, wherein: the groove (5) is V-shaped, and the included angle of the groove bottom of the groove (5) is 120 degrees.

4. The universal wrench of claim 2, wherein: the structure of the groove (5) is symmetrical about the center line of the body (1).

5. The universal wrench of claim 1, wherein: the number of the guide posts (2) is two, and the two guide posts (2) are symmetrically distributed along the center line of the body (1).

6. The universal wrench of claim 1, wherein: the threaded hole (13) is located in the center of one end face of the body (1).

7. The universal wrench of claim 1, wherein: and an adjusting nut (6) is arranged on the adjusting screw (4).

8. The universal wrench of claim 1, wherein: the guide post (2) is provided with a spring (7).

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