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Anti-falling screw component with anti-loose function

A screw assembly and anti-loosening technology, applied in the direction of screws, threaded fasteners, nuts, etc., can solve the problems of non-concentricity of anti-loosening parts and screws, poor anti-loosening effect of screws, etc., to achieve good anti-loosening effect, not easy to lose, Improve the effect of use

Inactive Publication Date: 2018-10-12
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a non-loosening screw assembly with anti-loosening function, which solves the problems in the prior art that the anti-loosening parts and screws are not concentric, and the screw anti-loosening effect is poor

Method used

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  • Anti-falling screw component with anti-loose function
  • Anti-falling screw component with anti-loose function

Examples

Experimental program
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Effect test

Embodiment 1

[0032] This embodiment provides a non-falling screw assembly with anti-loosening function, such as Figure 1 to Figure 2 As shown, it includes a screw 1, an anti-loosening part 2 and a fixing sleeve 4; the anti-loosening part 2 is arranged between the screw 1 and the fixing sleeve 4; the anti-loosening part 2 is elastic, and a round hole for the screw 1 to pass through is provided on it The fixed sleeve 4 is a sleeve-shaped structural part with internal threads. After the screw is tightened, the upper surface of the fixed sleeve 4 is in close contact with the lower surface of the anti-loosening part 2; the lower end of the screw head of the screw 1 is provided with an annular step (not shown in the figure) marked), the diameter of the annular step is slightly smaller than the inner diameter of the anti-loosening part 2, and the anti-loosening part 2 remains concentric with the screw head after being compressed.

[0033] During implementation, first connect the fixing sleeve 4 ...

Embodiment 2

[0042]This embodiment provides a method of using a non-loosening screw assembly with an anti-loosening function. When the non-loosening screw assembly needs to be installed on a panel, the fixing sleeve is first connected to the panel, and then the anti-loosening part and the spring are successively connected to each other. Install it on the non-falling screw, and then screw the non-falling screw together with the anti-loosening part and the spring onto the thread of the fixing sleeve to complete the installation of the non-falling screw assembly on the panel. Tighten the non-falling screw during work, the spring is compressed into the counterbore of the fixing sleeve, the anti-loosening part is pressed between the head of the non-falling off screw and the upper end surface of the fixing sleeve, and the anti-loosening part is concentric with the head of the non-falling off screw.

[0043] The chassis panels and cabinets or racks installed by this method are firm and durable, an...

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Abstract

The invention relates to an anti-falling screw component with an anti-loose function and belongs to the technical field of anti-falling screws. The anti-falling screw component can be used for solvingthe problem in the prior art that the anti-loose effect of screws is poor since anti-loose components are non-concentric with the screws. The anti-falling screw component with the anti-loose functioncomprises a screw, an anti-loose component and a fixing sleeve, wherein the anti-loose component is arranged between the screw and the fixing sleeve; the anti-loose component has elasticity and is provided with a round hole through which the screw penetrates; the fixing sleeve is of a sleeve-shaped structure with internal threads; after the screw is screwed down, the upper end surface of the fixing sleeve is in close contact with the lower surface of the anti-loose component; the lower end of a screw head of the screw is provided with an annular step; the diameter of the annular step is slightly smaller than the inner diameter of the anti-loose component; and after being compressed, the anti-loose component is concentric with the screw head. The anti-falling screw component with the anti-loose function, provided by the invention, can be used for connecting a case panel with a cabinet or a rack.

Description

technical field [0001] The invention relates to a non-fall-off screw assembly, in particular to a non-fall-off screw assembly with an anti-loosening function. Background technique [0002] The non-falling screw assembly can realize the function that the screw does not come out from the fixing sleeve after the screw is unscrewed from the fixing frame. [0003] In the prior art, the non-falling screw assembly generally includes a screw, a fixing sleeve and a spring. The fixing sleeve is riveted on the chassis panel, and the screw and the spring are installed on the fixing sleeve. After being loosened from the thread on the cabinet, the screw remains on the fixing sleeve, which can effectively prevent the problem of the screw being lost after being loosened. The currently used non-falling screw assembly basically has no anti-loosening measures during use, and it is easy to loosen under the condition of vibration. [0004] In some non-falling screw assemblies that have added w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/24
CPCF16B39/24
Inventor 孙海军
Owner BEIJING MECHANICAL EQUIP INST
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