Novel universal joint

Abstract

The utility model provides a novel universal joint, and belongs to the technical field of joints. The universal joint solves the problem that the internal structure of the joint is abraded by impurities due to the fact that an existing universal joint is lack of a filtering structure. The novel universal joint comprises a joint body composed of an upper joint part and a lower joint part, a ball head assembly is arranged between the upper joint part and the lower joint part and located in the joint body, an input end is arranged at the end of the lower joint part, a filtering structure is arranged at the input end, and the filtering structure comprises a framework sleeve with a filtering net. The input end is provided with a mounting groove for mounting the framework sleeve, a plurality of positioning blocks distributed circumferentially are arranged on the top face of the mounting groove, a plurality of positioning grooves for positioning and extending of the corresponding positioning blocks are formed in the circumferential wall of the top end of the framework sleeve, positioning holes are formed in the positioning blocks, and corresponding holes are formed in the positions, corresponding to the positioning holes, of the framework sleeve. And the positioning holes are connected with the corresponding holes through threaded long rods. The filtering device has the advantage of good filtering effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of joints and relates to a universal joint, in particular to a novel universal joint. Background Art

[0002] The universal joint is used to assemble on the driving tool so that the driving tool can adapt to various working environments and space operations. In this way, the workpiece can be installed on the universal joint for operation, and the transmission is realized through the action of the internal ball head assembly, thereby achieving universal swing of the joint.

[0003] However, the input end of the universal joint currently on the market lacks a filtering structure, which causes impurities to enter the interior of the joint. Over time, this will cause wear on the ball head assembly and affect its use. Summary of the invention

[0004] The purpose of the utility model is to provide a new universal joint with a filtering structure in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a new universal joint, including a joint body composed of an upper joint part and a lower joint part, a ball head assembly is arranged between the upper joint part and the lower joint part and in the joint body, characterized in that the end of the lower joint part has an input end, and a filtering structure is arranged at the input end, the filtering structure includes a skeleton sleeve with a filter screen, the input end has a mounting groove for mounting the skeleton sleeve, the groove top surface of the mounting groove has a plurality of circumferentially distributed positioning blocks, the top circumferential wall of the skeleton sleeve is provided with a plurality of positioning grooves for corresponding positioning blocks to be positioned and extended into, the positioning blocks are all provided with positioning holes, the skeleton sleeve is provided with corresponding holes at positions corresponding to the positioning holes, and the positioning holes are connected to the corresponding holes through a threaded long rod, and the outer end of the threaded long rod extends out of the skeleton sleeve and is connected to a locking nut.

[0006] In the above-mentioned novel universal joint, the filter screen is woven from iron wire material to form a plurality of filter screens, and the filter screen is in a bowl-shaped structure.

[0007] In the above-mentioned novel universal joint, the input end extends outward to form a connecting end, and a pipe fitting is internally connected to the connecting end.

[0008] Compared with the prior art, the novel universal joint has a filtering structure and has the advantage of good filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a partial cross-sectional view of the novel universal joint.

[0010] Figure 2 It is a stereogram of the novel universal joint.

[0011] In the figure, 1, upper joint part; 2, lower joint part; 3, input end; 4, frame sleeve; 5, mounting groove; 6, positioning block; 7, positioning groove; 8, positioning hole; 9, threaded long rod; 10, locking nut; 11, connection end; 12, pipe fitting. DETAILED DESCRIPTION

[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0013] like Figure 1 , Figure 2 As shown, the novel universal joint comprises a joint body consisting of an upper joint part 1 and a lower joint part 2, a ball head assembly is arranged between the upper joint part 1 and the lower joint part 2 and in the joint body, the end of the lower joint part 2 has an input end 3, and a filtering structure is arranged at the input end 3, the filtering structure comprises a skeleton sleeve 4 with a filter screen, the input end 3 has a mounting groove 5 for mounting the skeleton sleeve 4, the groove top surface of the mounting groove 5 has a plurality of circumferentially distributed positioning blocks 6, the top peripheral wall of the skeleton sleeve 4 is provided with a plurality of positioning grooves 7 for corresponding positioning blocks 6 to be positioned and extended, radial positioning is achieved, and radial movement and deviation of the filtering structure are prevented, positioning holes 8 are arranged on the positioning blocks 6, corresponding holes are arranged at positions corresponding to the positioning holes 8 on the skeleton sleeve 4, and the positioning holes 8 are connected to the corresponding holes through a threaded long rod 9, and the outer end of the threaded long rod 9 extends out of the skeleton sleeve 4 and is connected to a locking nut 10, so as to further improve the connection strength and connection stability.

[0014] Preferably, the filter screen is woven from iron wire material to form a plurality of filter screens, and the filter screen is in a bowl-shaped structure.

[0015] Preferably, the input end 3 extends outward to form a connecting end 11 , and a pipe 12 is connected inside the connecting end 11 .

[0016] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0017] Although the terms such as upper joint part 1, lower joint part 2, input end 3, frame sleeve 4, installation slot 5, positioning block 6, positioning slot 7, positioning hole 8, threaded long rod 9, locking nut 10, connection end 11, pipe fitting 12 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A novel universal joint, comprising a joint body consisting of an upper joint part (1) and a lower joint part (2), wherein a ball head assembly is arranged between the upper joint part (1) and the lower joint part (2) and within the joint body, characterized in that: The end of the lower joint portion (2) has an input end (3), and a filtering structure is arranged at the input end (3), the filtering structure comprising a frame sleeve (4) having a filtering net, the input end (3) having a mounting groove (5) for mounting the frame sleeve (4), the groove top surface of the mounting groove (5) having a plurality of circumferentially distributed positioning blocks (6), the top peripheral wall of the frame sleeve (4) having a plurality of positioning grooves (7) for corresponding positioning blocks (6) to be positioned and extended into, the positioning blocks (6) having positioning holes (8), the frame sleeve (4) having corresponding holes at positions corresponding to the positioning holes (8), the positioning holes (8) being connected to the corresponding holes via a threaded long rod (9), and the outer end of the threaded long rod (9) extending out of the frame sleeve (4) is connected to a locking nut (10).

2. A novel universal joint according to claim 1, characterized in that: The filter screen is woven from iron wire material and is formed into a plurality of filter screens, and the filter screen is in a bowl-shaped structure.

3. A novel universal joint according to claim 1, characterized in that: The input end (3) extends outward to form a connecting end (11), and a pipe (12) is internally connected to the connecting end (11).

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