Pneumatic double-inner swing door device of bus

Abstract

The invention discloses a pneumatic double inner swing door device for a bus, which comprises a No. 1 folding support rod, a No. 1 air pump, a No. 1 fixing plate, a pneumatic ring, a No. Bolts, fixing ports, protective shells, liners, buffer plates and telescopic rods, one end of the No. 1 folding support rod is provided with a No. 1 air pump, one end of the No. 1 air pump is provided with a No. 1 fixing plate, and one side of the No. 1 fixing plate A pneumatic ring is provided, and the other side of the pneumatic ring is provided with a No. 2 fixed plate and a No. 2 air pump arranged on one side of the No. 2 fixed plate. One end of the No. 2 air pump is provided with a No. 2 folding support rod. The invention has ingenious and reasonable design structure, compact structure, adopts partition control mode, improves the control efficiency of the air pump, and is convenient for inspection box and maintenance at the same time, and has good market promotion value.

Description

technical field [0001] The invention relates to a swing door device, in particular to a pneumatic double inner swing door device for a bus. Background technique [0002] At present, most buses adopt the design of the inner swing door, which is simple in structure and easy to use, but the most prominent problem is that the control of the inner swing door is controlled by a total air pump. The principle is that the car engine is equipped with an air compressor. , when the engine is working, the air compressor is also working. The outlet of the air compressor is connected to the air storage tank. The air storage tank has a safety valve. When the pressure in the tank exceeds a certain pressure, the safety valve will automatically open. There is a certain amount of air and a certain pressure, and the air source for opening and closing the door comes from the air storage tank. During the conduction process, insufficient air pressure may cause the door to fail to open, which wastes...

AI Technical Summary

Problems solved by technology

[0002] At present, most buses adopt the design of the inner swing door, which is simple in structure and easy to use, but the most prominent problem is that the control of the inner swing door is controlled by a total air pump. The principle is that the car engine is equipped with an air compressor. , when the engine is working, the air compressor is also working. The outlet of the air compressor is connected to the air storage tank. The air storage tank has a safety valve. When the pressure in the tank exceeds a certain pressure, the safety valve will automatically open. There is a certain amount of air and a certain pressure, and the air source for opening and closing the door comes from the air storage tank. During the conduction process, insufficient air pressure may cause the door to fail to open, which wastes the time of passengers, and an air pump is controlled, and its own pressure is relatively high. Damage If there is no backup, the door cannot be opened

Images