Roadblock positioning nail pulling-out device

Abstract

The invention discloses a roadblock positioning nail pulling-out device. The roadblock positioning nail pulling-out device comprises a supporting frame, a hydraulic cylinder is fixedly installed on the supporting frame, a movable frame is fixedly connected to the hydraulic cylinder and penetrates through the upper end of the supporting frame, a clamping mechanism is fixedly installed at the bottom of the supporting frame and comprises a clamping box, the clamping box is fixedly installed at the bottom of the movable frame, clamping grooves are symmetrically formed in the side wall of the clamping box, U-shaped limiting rods are clamped in the clamping grooves, a plurality of fixing blocks and special-shaped blocks are fixedly connected to the inner wall of the clamping box, and the fixing blocks and the special-shaped blocks are fixedly connected and evenly arranged on the inner wall of the clamping box in an array mode. Compared with the prior art, a movable block can drive a piston rod to move in an air pressure cavity when being extruded, then a limiting plate can abut against the surface of a positioning nail, the friction force between the limiting plate and the positioning nail is increased, meanwhile, the limiting plate extrudes a second air bag when being extruded by the roadblock positioning nail, a friction plate on a movable plate abuts against the inner wall of the air pressure cavity, the friction force is increased, and the roadblock positioning nail can be conveniently pulled out.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a device for pulling out roadblock positioning nails. Background technique [0002] The barricades in existing life usually fix the rubber barricade body on the asphalt road through the barricade positioning nails, but with long-term use, the barricades are often crushed flatter, and even become detached due to wear and tear, causing the barricade positioning pins to be broken. It will be exposed. If it cannot be dealt with in time, this will undoubtedly bring safety hazards to vehicles and pedestrians. During the driving process, the vehicle will be rolled over from the roadblock positioning nails, which will cause greater wear and tear on the tires, and even when the vehicle brakes suddenly In some cases, the tires will be punctured directly, which will affect the safety of drivers and passengers. Most of the existing treatment methods are to cut off the exposed part ...

AI Technical Summary

Problems solved by technology

[0002] The barricades in existing life usually fix the rubber barricade body on the asphalt road through the barricade positioning nails, but with long-term use, the barricades are often crushed flatter, and even become detached due to wear and tear, causing the barricade positioning pins to be broken. It will be exposed. If it cannot be dealt with in time, this will undoubtedly bring safety hazards to vehicles and pedestrians. During the driving process, the vehicle will be rolled over from the roadblock positioning nails, which will cause greater wear and tear on the tires, and even when the vehicle brakes suddenly In some cases, the tires will be punctured directly, which will affect the safety of drivers and passengers. Most of the existing treatment methods are to cut off the exposed part of the bottom surface, which cannot fundamentally solve the problem. Therefore, we propose A device for pulling out barricade positioning pins is used to solve the above problems

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