Lifting roadblock

Abstract

The invention discloses a lifting roadblock which comprises an outer cylinder body and an inner cylinder body, a gas spring is arranged between the bottom of the outer cylinder body and the top of the inner cylinder body, the gas spring can drive the inner cylinder body to lift, a locking mechanism is arranged between the outer cylinder body and the inner cylinder body, and the locking mechanism can lock the inner cylinder body in a lifting state and a retracting state; the lifting roadblock is also provided with a drainage pipe which has an upper end part and a lower end part, the lower end part of the drainage pipe is communicated with the inside of the inner cylinder body, the upper end part is communicated with the outside, the upper end part of the drainage pipe is provided with a one-way valve, and when the pressure in the drainage pipe is greater than the external atmosphere pressure, the one-way valve is opened, and the inside of the inner cylinder body is communicated with the outside by the drainage pipe. By setting the drainage pipe which communicates the inside of a communicating vessel and the outside, the lifting roadblock discharges accumulated water that penetrates into the lifting roadblock through various gaps every time the inner cylinder body is pressed, thus improving the using reliability of the lifting roadblock.

Description

technical field [0001] The invention relates to a lifting barrier. Background technique [0002] In traffic management, parking management and private area management, in some cases, vehicles are not allowed to pass or enter and exit at will, and pedestrians are required to pass without obstacles when they are not walking. Barriers to spatial layout. Barricades in the prior art generally include an inner cylinder and an outer cylinder, the inner cylinder is located inside the outer cylinder and can be raised and lowered relative to the outer cylinder. Since the inner and outer cylinders and other parts of these roadblocks are not sealed as a whole, it is inevitable that they will not be well sealed and form a gap. And because most of the roadblocks are set in the open air, in rainy weather, the inside of the roadblocks is easy to seep water. If things go on like this, problems such as the difficulty of raising and lowering of roadblocks will be caused. Contents of the i...

AI Technical Summary

Problems solved by technology

And because most of the roadblocks are set in the open air, in rainy weather, the interior of the roadblocks is prone

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