Trailer arm assembly

A technology of arm components and trailers, which is applied in the field of trailer arm components, can solve problems such as poor stability and axial series movement, and achieve the effects of good stability, firm connection and reduced production costs

Inactive Publication Date: 2015-12-23
NINGBO YINZHOU LONGTENG TOOL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing trailer arm assemblies generally include a trailer arm body and a trailer ball joint connected to the trailer arm body. On the towed vehicle, the existing trailer ball head generally has two, which are divided into upper and lower parts and inserted on the trailer arm body. The specific connection method is to install a sleeve on the trailer arm body, and the inner wall of the sleeve is provided with internal threads, and the two trailers The ball joints have external threads, and the two trailer ball joints are threaded into the sleeve. Although this structure can firmly connect the two trailer ball joints with the trailer arm body, since the two trailer ball joints are inserted into the sleeve together, the During the specific installation, the ends of the two trailer balls will abut against each other in the sleeve, causing the problem that the trailer ball will move axially on the trailer arm after the trailer ball is installed on the trailer arm. poor sex

Method used

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Embodiment Construction

[0033] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0034] Such as Figure 1 to Figure 5 As shown, the trailer arm assembly includes a connecting arm 1, a supporting arm 2, a main ball head 3 and a secondary ball head 4, wherein the supporting arm 2 is connected with the connecting arm 1, and the supporting arm 2 has a mounting hole 21; the main ball head 3 has The extension portion 33 is cylindrical and inserted into the installation hole 21 ; the auxiliary ball head 4 has an installation portion 43 , and the installation portion 43 is inserted in the extension portion 33 and screwed to the extension portion 33 .

[0035] In this trailer arm assembly, the sleeve originally used to connect the main ball head 3 and the auxiliary ball head 4 is designed into an integrated str...

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Abstract

The invention provides a trailer arm assembly belonging to the technical field of vehicle dragging devices and solving the problem of poor stability of the existing trailer arm. The trailer arm assembly is characterized by comprising a connecting arm, a supporting arm, a main ball head and an auxiliary ball head, wherein the supporting arm is connected with the connecting arm, and a mounting hole is formed in the supporting arm; the main ball head is provided with a cylindrical extension part inserted to the mounting hole; and the auxiliary ball head is provided with a mounting part which is inserted to the extension part and is in threaded connection with the extension part. The trailer arm assembly has the advantages of simple structure, connection firmness and good stability.

Description

technical field [0001] The invention belongs to the technical field of vehicle traction devices, in particular to a trailer arm assembly. Background technique [0002] Existing trailer arm assemblies generally include a trailer arm body and a trailer ball joint connected to the trailer arm body. On the towed vehicle, the existing trailer ball head generally has two, which are divided into upper and lower parts and inserted on the trailer arm body. The specific connection method is to install a sleeve on the trailer arm body, and the inner wall of the sleeve is provided with internal threads, and the two trailers The ball joints have external threads, and the two trailer ball joints are threaded into the sleeve. Although this structure can firmly connect the two trailer ball joints with the trailer arm body, since the two trailer ball joints are inserted into the sleeve together, the During the specific installation, the ends of the two trailer balls will abut against each o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60D1/14
CPCB60D1/06B60D1/46B60D1/075B60D1/58
Inventor 李光龙
Owner NINGBO YINZHOU LONGTENG TOOL FACTORY
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