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Automobile waterproof lock screw

A technology of anti-back and screw, which is applied in the direction of screws, nuts, bolts, etc., can solve problems such as lack, and achieve the effect of preventing surface rust

Pending Publication Date: 2018-01-26
天津市天龙得冷成型部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it has been widely recognized and applied, for most technicians, there is a lack of motivation to improve its technology, resulting in some defects in the waterproof, anti-off, anti-theft, and easy screw-in of vehicle screws. Screws used in transportation facilities such as automobiles that involve personal and property safety urgently need to be further improved in their waterproof, anti-off and anti-theft performance to ensure the safety of drivers and passengers.

Method used

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  • Automobile waterproof lock screw
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Experimental program
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Embodiment Construction

[0018] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0019] A kind of anti-backwater waterproof screw for vehicle, such as figure 1 and figure 2 As shown, it includes integrally formed nut 1, screw rod 4 and guide head 6; the bottom surface of the nut is coaxially made with an annular waterproof boss 2; Strip longitudinal anti-retreat groove 5; the anti-retreat groove is a chute with a width of 0.2-0.3mm; four circular anti-theft grooves 7 are evenly distributed on the top end surface of the nut; the end of the nut One side of the wall is integrally formed with a rotation indicator needle 3, which is convenient for maintenance personnel to quickly determine whether the screw is loose and tighten it; the surface of the nut, screw and guide head is coated with an anti-rust coating.

[0020] It should be emphasized that the embodiments described in the present invention are illustrative rather than r...

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PUM

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Abstract

The invention relates to an automobile waterproof lock screw which comprises a nut, a screw rod and a guide head which are integrally formed. The automobile waterproof lock screw is technically characterized in that an annular waterproof boss is made coaxially downwards from the bottom surface of the nut; a thread is arranged on the screw rod, and a plurality of longitudinal lock grooves are uniformly formed in and distributed on the circumferential surface of the screw rod in a surrounding mode; and the lock grooves are oblique grooves which are 0.2-0.3 mm wide. The oblique lock grooves havethe effect that the screw is prevented from being disengaged from a screw hole after the screw is loosened, the longitudinal oblique lock grooves are uniformly formed in and distributed on the circumferential surface of the screw rod in the surrounding mode and are long, and the lock effect of the lock screw is better compared with that of a screw with only a plurality of straight grooves formed in the connecting portion of a nut and a screw rod.

Description

technical field [0001] The invention belongs to the technical field of fasteners, in particular to an anti-retreat and waterproof screw for vehicles. Background technique [0002] Currently, in automotive fastener products, screws are an essential automotive component. However, because it has been widely recognized and applied, for most technicians, there is a lack of motivation to improve its technology, resulting in some defects in the waterproof, anti-off, anti-theft, and easy screw-in of vehicle screws. Screws used in transportation facilities such as automobiles and other transportation facilities that involve personal and property safety urgently need to be further improved in their waterproof, detachment-proof and anti-theft performance to ensure the safety of drivers and passengers. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and provide an anti-retraction and waterproof screw for vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/04F16B35/06F16B39/282
Inventor 闫宝祥吕占军赵月起李树干徐秀腾
Owner 天津市天龙得冷成型部件有限公司