Thread-slipping-resistant check bolt

An anti-skid and anti-retreat technology, which is applied in the direction of bolts, screws, nuts, etc., can solve problems such as hidden dangers, damage, and insufficient experience of operators, and achieve the effect of reducing the chance of thread slippage and ensuring vertical force

Inactive Publication Date: 2014-05-07
ZHEJIANG COWIN FASTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it can be easily disassembled, it is often stolen or destroyed by criminals, causing extremely unsafe hidden dangers to these infrastructures or directly destroying them.
During the fastening operation of commonly used bolt and nut fasteners, the vertical force of the bolt and the threaded hole cannot be guaranteed, resulting in oblique force or the operator is inexperienced or uses too much force, resulting in the fragile threaded hole slipping

Method used

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  • Thread-slipping-resistant check bolt

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with illustrations and specific embodiments.

[0016] Such as figure 1 The shown anti-skid bolts include a bolt head 1 , a screw rod 2 extending downward from the bottom of the bolt head 1 , and a threaded part 3 formed on the outer edge of the screw rod 2 .

[0017] The bolt head 1 is a cylindrical bolt head, and an end face ratchet 11 is provided on its upper end surface, and the stop direction of the end face ratchet 11 is consistent with the advancing direction of the threaded part 3; The upper end is also provided with an external hexagonal bolt connection head 6 , and the lower end surface is provided with an auxiliary end ratchet 61 which meshes with the end ratchet 11 . After the bolts are loaded into the equipment, the hexagonal wrench is used to turn the outer hex...

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PUM

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Abstract

The invention relates to a thread-slipping-resistant check bolt which comprises a bolt head, a screw and threads. The bolt head is cylindrical, end face ratchets are arranged on the upper end face of the bolt head, and the check direction of the end face ratchets is identical to the heading direction of the threads; an outer hexagon bolt connector is further arranged at the upper end of the bolt head and auxiliary end face ratchets meshed with the end face ratchets are arranged on the lower end face of the bolt head. After the bolt is installed in a device, the outer hexagon bolt connector is screwed through a hexagon spanner, the auxiliary end face ratchets drive the end face ratchets meshed with the auxiliary end face ratchets to rotate, and therefore the bolt is driven to be screwed. After the bolt is screwed tightly, the outer hexagon bolt connector is taken out, the bolt can not be detached from the outer end through a common measure and a common tool any more, and therefore the anti-theft purpose is achieved. Meanwhile, a guide polish rod with the diameter smaller than that of outer threads of the bolt is designed at the end, far away from the bolt head, of a thread screwing portion, the guide polish rod conducts perpendicular guidance before the bolt and a threaded hole are meshed, the perpendicular stress of the bolt is guaranteed, and the probability of thread slipping is reduced.

Description

technical field [0001] The invention relates to the field of fasteners, in particular to an anti-skid thread stop bolt. Background technique [0002] A bolt is a type of fastener consisting of a head and a screw rod. It needs to be matched with a nut to fasten and connect two parts with through holes. [0003] The existing commonly used bolt and nut fasteners are indispensable and important parts for the connection between mechanical parts and the fixing of devices. The bolt and nut fasteners are very convenient to use, easy to install and easy to disassemble, but for the The safety of bolts and nuts in infrastructure in the field is very important, such as bolts and nuts used in infrastructure such as railways, highway bridges, transmission towers, and microwave communication towers. Because it can be easily disassembled, it is often stolen or destroyed by criminals, causing extremely unsafe hidden dangers to these infrastructures or directly destroying them. Currently co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B41/00F16B35/04
Inventor 杨荣德傅献军
Owner ZHEJIANG COWIN FASTECH
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