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Bolt capable of preventing nut from falling

A technology of bolts and nuts, which is applied in the field of bolts to prevent nuts from falling off. It can solve the problems of affecting the normal operation of the machine and nuts falling off, and achieves the effect of simple structure, preventing falling off and reasonable design.

Inactive Publication Date: 2016-05-18
SHANDONG GAOQIANG FASTENER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the usual fixed connection can use bolts and nuts, that is, the bolt usually passes through two parts and then is screwed with the nut, so as to realize the fixed connection of the two parts. However, under the action of shock, vibration, etc., It is easy to make the nuts fall off from the bolts, which will affect the normal operation of the machine and even cause serious accidents

Method used

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  • Bolt capable of preventing nut from falling
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Embodiment Construction

[0010] Such as figure 1 , 2 As shown, the technical solution adopted in the present invention is: a bolt for preventing the nut from falling off, comprising a bolt head 1 and a screw rod 2, wherein the screw rod 2 is composed of an upper screw rod 3 and a lower screw rod 4, and the upper screw rod 3 and the lower screw rod The lower screw 4 is connected by a pin shaft, one side of the contact surface between the lower screw 4 and the upper screw 3 is an arc, the diameter of the lower screw 4 is smaller than that of the upper screw 3, and the lower screw 4 is not provided with threads.

[0011] The working principle of the present invention is: when the present invention is in use, the lower screw rod 4 is squeezed to one side of the arc, so that the lower screw rod 4 is perpendicular to the upper screw rod 3, so as to prevent the nut from falling off.

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PUM

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Abstract

The invention discloses a bolt capable of preventing a nut from falling. The bolt comprises a bolt head and a bolt rod and is characterized in that the bolt rod comprises an upper bolt rod and a lower bolt rod, the upper bolt rod and the lower bolt rod are connected by the aid of a hinge pin, one side of the surface, contacted with the upper bolt rod, of the lower bolt rod is arc-shaped, the diameter of the lower bolt rod is smaller than that of the upper bolt rod, and no thread is arranged on the lower bolt rod. According to the bolt, the lower bolt rod is extruded towards the arc-shaped side, so that the lower bolt rod is perpendicular to the upper bolt rod, the nut is prevented from falling, and normal operation of equipment is guaranteed; the bolt is simple in structure and reasonable in design, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the design field of mechanical fasteners, in particular to a bolt for preventing nuts from falling off. Background technique [0002] At present, the usual fixed connection can use bolts and nuts, that is, the bolt usually passes through the two parts and then is screwed with the nut, so as to realize the fixed connection of the two parts. However, under the action of shock, vibration, etc., It is easy to make the nut fall off from the bolt, which will affect the normal operation of the machine and even cause serious accidents. Contents of the invention [0003] The object of the present invention is to provide a bolt that prevents the nut from falling off. [0004] In order to achieve the above object, the technical solution of the present invention is: a bolt for preventing the nut from falling off, comprising a bolt head and a screw rod, wherein the screw rod is composed of an upper screw rod and a lower screw rod, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/04
CPCF16B35/041
Inventor 陈永臻董增斌王翠
Owner SHANDONG GAOQIANG FASTENER
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