An anti-vehicle retrograde device with self-cleaning function
A self-cleaning, functional technology, applied in the field of traffic safety, can solve problems such as large safety hazards
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Embodiment 1
[0023] Such as Figure 1-2 As shown, a self-cleaning anti-vehicle retrograde device includes a main pipe 1 arranged below the ground and arranged horizontally. The side wall of the main pipe 1 is provided with a single row of air intake holes. The main pipe 1 has good wear resistance and sealing It can be an ordinary plastic pipe. The main pipe 1 includes a forward end 2 and a reverse end 3 with both ends sealed. The car travels from the forward end 2 to the reverse end 3. The end 2 runs in the reverse direction, and the upper side wall of the main pipe 1 is fixedly connected with a plurality of sub-pipes 4 that are all vertically arranged, and the upper ends of the plurality of sub-pipes 4 are all sealed.
[0024] Each branch pipe 4 is sealed and slidably connected with a horizontally arranged sliding plate 5, and a back-moving spring 6 is fixedly connected between the sliding plate 5 and the inner top surface of the branch pipe 4. The back-moving spring 6 is in a contracted ...
Embodiment 2
[0034] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that an air outlet pipe 20 is fixedly communicated with the side wall of the antegrade end 2 of the main pipe 1, and the other end of the air outlet pipe 20 is fixedly connected with a warning whistle 21, and the air outlet pipe 20 There is a flow-limiting one-way valve inside, and when the air pressure in the main pipe 1 reaches the limit value of the flow-limiting one-way valve, the gas in the pipe will be discharged through the outlet pipe 20 .
[0035] In this embodiment, when the car is running in the reverse direction, the anti-reverse main belt 14 will be pressed into the sealed tube 12 first, and when the wheel is pressed against the anti-reverse belt 8, not only will it cause a bumpy feeling, but the increased pressure in the main pipe 1 will Also can blow warning whistle 21 by air outlet pipe 20, carry out effective warning to driver.
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