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Thread bushing structure

A technology of inserts and threads, applied in the field of mechanical parts, can solve the problems of easy loosening of inserts and batch oil leakage, and achieve the effects of improving reliability, preventing leakage and reducing costs.

Inactive Publication Date: 2014-04-30
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the oil inlet and outlet inserts on the existing diesel filter seat only have radial limits, and there is no limit in the axial direction. During the process of assembling the oil-passing bolts and tightening the torque, the inserts are easy to loosen , under the action of axial force, the insert is easy to pull out along the axial direction, resulting in a batch of oil leakage failures during the test machine

Method used

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Embodiment Construction

[0012] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0013] Such as figure 1 and figure 2 As shown, a threaded insert structure of the present invention is mainly designed to prevent the axial pull-out of the insert. The threaded insert structure provided in this embodiment mainly includes an insert 1 and an insert 2, and the insert 2 and the insert 1 is cast together and the insert 2 is cast inside the insert 1. The insert 2 has internal threads (not marked in the figure) for installing bolts. As a preferred embodiment, the thread insert structure also has a diameter The function of limit and axial limit ensures the reliability when the bolt is screwed into the insert 2 and the torque is tightened. In order to realize the radial limit, the outer periphery of insert 2...

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Abstract

The invention discloses a thread bushing structure. The thread bushing structure comprises a bushing base and a bushing. The bushing is installed inside the bushing base, the bushing is provided with an internal thread used for installing a bolt, the periphery of the bushing is provided with at least one annular groove, the bushing and the bushing base are cast together, and the material of the bushing base is cast into the groove. According to the thread bushing structure, the bushing can be prevented from disengaging or being pulled out, the using requirements are met, leakage caused by pull and disengagement of the bushing is effectively prevented, cost generated in the product manufacturing process is reduced, and the reliability of the product is improved.

Description

technical field [0001] The invention relates to the field of mechanical parts, in particular to a thread insert structure. Background technique [0002] A threaded structure with inserts is often involved in the engine oil circuit connection, such as the oil inlet and outlet inserts on the diesel filter seat, and the oil-through bolts are screwed into the inserts. However, the oil inlet and outlet inserts on the existing diesel filter seat only have radial limits, and there is no limit in the axial direction. During the process of assembling the oil-passing bolts and tightening the torque, the inserts are easy to loosen , Under the action of axial force, the insert is easy to pull out along the axial direction, resulting in a batch of oil leakage failures during the test machine. Contents of the invention [0003] The purpose of the present invention is to overcome the defects in the above-mentioned prior art, and provide a threaded insert structure, which limits the move...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B37/00
Inventor 杨镇康潘坚谭祖健宋凯
Owner GUANGXI YUCHAI MASCH CO LTD
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