CN214025456U - Universal joint applied to pneumatic wrench - Google Patents

Abstract

The utility model relates to a universal joint applied to a pneumatic wrench, belonging to the technical field of bolt sleeves; the universal joint comprises a universal joint pin, wherein the outer end face of a transmission shaft on one side of the universal joint pin is fixedly connected with a connecting column, the end face of the tail end of the connecting column is provided with a pneumatic wrench joint, the outer end face of a transmission shaft on the other side of the universal joint pin is fixedly connected with a bolt sleeve joint, and the end face of the tail end of the bolt sleeve joint is provided with a bolt sleeve mounting hole; the universal joint also comprises a locking sleeve which is respectively sleeved outside the connecting column and the bolt sleeve joint, the locking sleeve comprises a sleeve joint part and clamping parts which are symmetrically arranged at two sides of the lower end of the sleeve joint part, an opening in the sleeve joint part is in transition fit with the connecting column and the bolt sleeve joint, the bottom end of the clamping part is a semi-cylindrical groove, and the semi-cylindrical groove is embedded with a cross shaft of the cross shaft universal joint; the problem of difficult dismantlement bolt when there is the angular difference between current air spanner and bolt is solved.

Description

Universal joint applied to pneumatic wrench

Technical Field

The utility model belongs to the technical field of the bolt sleeve, concretely relates to be applied to air wrench's universal joint.

Background

When the pneumatic wrench is used for disassembling a large bolt, the bolt can be ensured to be tightly attached to the sleeve on the pneumatic wrench by being almost perpendicular to the bolt, otherwise, the bolt and the sleeve are slipped and abraded. When the bolts at corners or corners of some equipment are disassembled, the pneumatic wrench cannot be perpendicular to the bolts, so that the bolts are easy to slip when being disassembled by directly using the pneumatic wrench, and the bolts are difficult to disassemble due to abrasion of the bolts. The sleeve or the wrench can only be used for disassembly manually, which has high labor intensity and wastes time and labor.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the prior art and provides a universal joint applied to a pneumatic wrench; the problem of difficult dismantlement bolt when having the angular difference between current pneumatic spanner and bolt is solved.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

A universal joint applied to a pneumatic wrench comprises a cross-shaped shaft universal joint, wherein a connecting column is fixedly connected to the outer end face of a transmission shaft on one side of the cross-shaped shaft universal joint, a pneumatic wrench joint is arranged on the end face, away from the cross-shaped shaft universal joint, of the connecting column on one side, a bolt sleeve joint is fixedly connected to the outer end face of the transmission shaft on the other side of the cross-shaped shaft universal joint, and a bolt sleeve mounting hole is formed in the end face, away from the cross-shaped shaft universal joint, of the bolt sleeve joint on one side; the universal joint still including cup joint respectively in the spliced pole with the locking sleeve in the bolt sleeve connects the outside, the locking sleeve including cup joint portion and symmetry set up in the chucking portion of cup joint portion lower extreme both sides, the inside trompil of cup joint portion with spliced pole and bolt sleeve connect for transition fit, the chucking portion bottom is semi-cylindrical recess, semi-cylindrical recess with the mutual gomphosis of cross universal joint.

Furthermore, the connecting column and the bolt sleeve joint are of a columnar structure with the same cross section size.

Furthermore, the inner opening of the sleeving part is of a combined structure of a square hole and a circular hole, the square hole is arranged at one end far away from the clamping part, and the size of the cross section of the square hole is the same as that of the connecting column; one end of the sleeve joint part close to the clamping part is a circular hole, and the diameter of the circular hole is larger than the outer diameter of a transmission shaft of the cross universal joint.

The utility model discloses produced beneficial effect for prior art does: by applying the universal joint provided by the utility model to the pneumatic wrench, bolts which are difficult to disassemble at the corners of the equipment can be disassembled, even if the pneumatic wrench and the bolts have an angle difference, the rotation torque of the pneumatic wrench can be effectively transmitted, the problem that a bolt sleeve and the bolts cannot be tightly attached is avoided, the bolts are slipped and worn, manual disassembly is not needed, the working efficiency is improved, and the labor intensity is greatly reduced; through installing the locking sleeve in universal joint both sides, can lock the rotation of cross axle universal joint, make it use as a fixed bolt sleeve joint, the commonality strengthens greatly.

Drawings

The invention will be described in further detail with reference to the accompanying drawings:

fig. 1 is a schematic structural view of the whole of the present invention;

FIG. 2 is a schematic view of the locking sleeve of FIG. 1 with the locking sleeve removed;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of the locking sleeve of FIG. 1;

wherein, 1 is a cross universal joint, 2 is a connecting column, 3 is a pneumatic wrench joint, 4 is a bolt sleeve joint, 5 is a bolt sleeve mounting hole, 6 is a socket joint part, 7 is a clamping part, 8 is a locking sleeve, and 9 is a semi-cylindrical groove.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.

As shown in fig. 1-4, the utility model provides a universal joint applied to a pneumatic wrench, which comprises a universal joint 1, wherein a connecting column 2 is welded at one end of the universal joint 1, the connecting column 2 is of a square structure, a pneumatic wrench joint 3 is welded at one side end face of the connecting column 2 away from the universal joint 1, and the pneumatic wrench joint 3 can be directly connected with the pneumatic wrench for transmitting power; the cross axle universal joint 1 has bolt sleeve joint 4 from the welding of a side end face of spliced pole 2, bolt sleeve joint 4 is square columnar structure, bolt sleeve joint 4 is the same with above-mentioned spliced pole 2's cross section size bolt sleeve joint 4 has been seted up on keeping away from cross axle universal joint 1's a side end face and has been seted up bolt sleeve mounting hole 5, can be used to install the different bolt sleeve of various specifications.

The universal joint further comprises two locking sleeves 8, each locking sleeve 8 comprises a sleeve-connecting part 6 and clamping parts 7 symmetrically arranged on two sides of the lower end of the sleeve-connecting part 6, the sleeve-connecting parts 6 are of hollow structures, the insides of the sleeve-connecting parts are of combined structures of square holes and circular holes, the square holes are arranged at one ends far away from the clamping parts 7, the cross section size is the same as that of the connecting column 2, and the locking sleeves are used for realizing transition fit when being sleeved with the connecting column 2; one end of the sleeve joint part 6 close to the clamping part 7 is a circular hole, and the size of the circular hole is larger than the outer diameter of a transmission shaft of the universal joint cross 1. The bottom end of the clamping part 7 is a semi-cylindrical groove 9, and the diameter of the semi-cylindrical groove is the same as the outer diameter of a cross shaft of the cross shaft universal joint 1.

When the pneumatic wrench is used for disassembling the bolts at the corners or the corners of some devices, the two locking sleeves 8 sleeved on the universal joint are removed, the pneumatic wrench joint 3 is connected with the pneumatic wrench, the bolt sleeves with the required size are installed on the bolt sleeve joint 4, and the universal joint is provided with the cross universal joint 1, so that the angle between one side of the pneumatic wrench joint 3 and one side of the bolt sleeve joint 4 can be properly adjusted, and the bolts which are not easy to disassemble at the corners can be disassembled.

When the bolt with a right-angle disassembly angle but a longer distance needs to be disassembled, the locking sleeve 8 can be respectively sleeved on the connecting column 2 and the bolt sleeve joint 4 of the universal joint, so that the square hole of the locking sleeve 8 is in transition fit with the connecting column 2 and the bolt sleeve joint 4 and cannot be easily separated from each other, the two semi-cylindrical grooves 9 of the clamping part 7 of one locking sleeve 8 are respectively clamped with two symmetrical shafts in the cross shaft, and the two semi-cylindrical grooves 9 of the clamping part 7 of the other locking sleeve 8 are respectively clamped with the other two symmetrical shafts in the cross shaft, so that the universal joint 1 can be locked under the action of the two locking sleeves 8, the angle change cannot be carried out any more, and the universal joint is converted into a fixed joint. When the bolt is disassembled by using the locked universal joint, the operator can not change the angle, the bolt is stressed more directly, and the bolt can not deviate in angle due to the existence of the universal joint.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (3)

1. The utility model provides a be applied to air wrench's universal joint which characterized in that: the universal joint comprises a universal joint (1), wherein a connecting column (2) is fixedly connected to the outer end face of a transmission shaft on one side of the universal joint (1), a pneumatic wrench joint (3) is arranged on the end face, away from the universal joint (1), on one side of the connecting column (2), a bolt sleeve joint (4) is fixedly connected to the outer end face of the transmission shaft on the other side of the universal joint (1), and a bolt sleeve mounting hole (5) is formed in the end face, away from the universal joint (1), on one side of the bolt sleeve joint (4); the universal joint further comprises a locking sleeve (8) which is respectively sleeved on the connecting column (2) and the outer side of the bolt sleeve joint (4), the locking sleeve (8) comprises a sleeve joint part (6) and clamping parts (7) which are symmetrically arranged on two sides of the lower end of the sleeve joint part (6), an inner hole of the sleeve joint part (6) is in transition fit with the connecting column (2) and the bolt sleeve joint (4), the bottom end of each clamping part (7) is a semi-cylindrical groove (9), and the semi-cylindrical grooves (9) are embedded with the cross shafts of the universal joint (1) mutually.

2. The universal joint applied to the pneumatic wrench as claimed in claim 1, wherein: the connecting column (2) and the bolt sleeve joint (4) are of columnar structures with the same cross section size.

3. The universal joint applied to the pneumatic wrench as claimed in claim 1, wherein: the inner hole of the sleeve joint part (6) is a combined structure of a square hole and a circular hole, the square hole is arranged at one end far away from the clamping part (7), and the size of the cross section of the square hole is the same as that of the connecting column (2); one end of the sleeve joint part (6) close to the clamping part (7) is a circular hole, and the diameter of the circular hole is larger than the outer diameter of a transmission shaft of the universal joint cross (1).

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