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Vehicle-mounted advisement frame installation bolt

A technology for installing screws and advertising frames, applied in the direction of nuts, bolts, threaded fasteners, etc., can solve the problems of loss and damage of decorative nails, and achieve the effect of solving loss and damage

Inactive Publication Date: 2012-02-22
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a new type of screw to solve the problem of loss and damage of decorative nails during vehicle operation

Method used

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  • Vehicle-mounted advisement frame installation bolt
  • Vehicle-mounted advisement frame installation bolt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] With reference to the accompanying drawings, 1, decorative nails; 2, opening retaining ring; 3, hexagon socket head cap screws; 4, nuts; 5, advertising bottom plate; Together, it is installed at the connection installation hole between the advertising bottom plate and the advertising top plate, and the opening retaining ring 2 is stuck on the advertising bottom plate 5, and the decorative nail 1 is stuck on the advertising top plate 6, so that the mounting screws can rotate in the advertising board without restriction. The hexagon socket head screw is connected with the nut 4 at the advertisement bottom plate 5 places to prevent loss and damage. Tighten it with a hexagonal wrench to ensure that it will not loosen when the vehicle is in operation.

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PUM

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Abstract

The invention discloses a vehicle-mounted advisement frame installation bolt which is characterized in that a stud is in interference fit with the head part of a socket head cap screw, wherein a screw of the socket head cap screw is provided with a groove, an opening baffle ring is arranged in the groove, the tail part of the socket head cap screw is connected with a nut. Because the stud is in interference fit with the head part of the socket head cap screw, the screw of the socket head cap screw is provided with the groove and the opening baffle ring is arranged in the groove, when the installation bolt is installed on an advisement board, the opening baffle ring is used for clamping the installation bolt on an advisement bottom board, the stud which is in interference fit with the head part of the socket head cap screw is also clamped on an advisement top plate, thus the problems of loss and damage of the installation bolt when a vehicle operates are solved.

Description

technical field [0001] The invention relates to a vehicle-mounted advertising frame decorative nail, in particular to a loss-proof and damage-proof decorative screw. Background technique [0002] When the subway vehicle is running, the decorative nails of the vehicle advertising frame are often lost and damaged. For this phenomenon, in order to prevent the damage and loss of the decorative nails, therefore, without affecting the decorative effect, a functional requirement is put forward, and it is required that the advertising frame panel cannot be opened at will without special tools. Contents of the invention [0003] The purpose of the present invention is to provide a new type of screw to solve the problem of lost and damaged decorative nails during vehicle operation. [0004] In order to achieve the above object, the present invention provides a vehicle advertising frame mounting screw, which is characterized in that: a decorative nail is interference fit with the he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B41/00
Inventor 胡金玉
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD