A vacuum cleaner suction cup ground clearance automatic adjustment device

Abstract

The invention discloses a device for automatically adjusting the ground clearance of a sucking disc of a vacuum sweeper. The device mainly comprises a pneumatic control system, a pneumatic system and a transmission system, the pneumatic control system mainly comprises a compressed air tank and a pneumatic control reversing valve, the pneumatic control reversing valve comprises a valve main body, a valve element is arranged inside the valve main body, the valve element separates the valve main body into a left valve body communicated with the atmosphere and a right valve body communicated with an outlet pipe of the sucking disc of the vacuum sweeper, and a spring connected with the valve element is installed inside the left valve body; the pneumatic system comprises an air cylinder, the air cylinder is internally provided with a piston, the piston separates the air cylinder into a rod cavity and a rodless cavity, the rodless cavity is connected with a left output cavity through a first pipe, and the rod cavity is connected with a right output cavity through a second pipe; the piston is connected with a piston rod, the extending end of the piston rod is connected with the input end of the transmission system, and the output end of the transmission system is connected with connecting nuts on the sucking disc of the vacuum sweeper. According to the device, pure machines are adopted to control the ground clearance of the sucking disc of the vacuum sweeper, manual monitoring is not needed, feasibility is good, and reliability is high.

Description

technical field [0001] The invention relates to the technical field of dust collection equipment, in particular to an automatic adjustment device for the ground clearance of a suction cup of a dust collection vehicle. Background technique [0002] With the rapid development of my country's economy, the increase of population and the acceleration of urbanization, the dust generated by urban construction has increased rapidly, and dust pollution has become one of the main sources of urban air pollution. Dust pollution has seriously threatened the health of urban residents; as an effective tool to control urban dust pollution, vacuum cleaners have attracted more and more attention to their dust removal and purification capabilities, and the demand for vacuum cleaners has also risen sharply. [0003] The working efficiency and service life of the vacuum cleaner have a very close relationship with the height of the suction cup from the ground: if the suction cup of the vacuum cle...

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Problems solved by technology

[0003] The working efficiency and service life of the vacuum cleaner have a very close relationship with the height of the suction cup from the ground: if the suction cup of the vacuum cleaner has a large ground clearance, the negative pressure formed by the suction cup is small, the airflow velocity at the suction cup mouth is small, and the dust collection effect is poor. Good; if the gap between the suction cup and the ground is small, the surface area formed by the gap between the suction cup and the ground is small, and the negative pressure formed by the suction cup is large, which will increase the airflow velocity at the suction cup mouth, which can increase the suction rate of dust particles and improve the efficiency of the vacuum cleaner. However, if the ground clearance of the suction cup of the vacuum cleaner is too small, it will affect the suction of blocky and large particle diameter debris, and the suction cup will be damaged when there is a substance with high hardness, which will aggravate the suction of the suction cup. Wear and tear will reduce the service life of the suction cup. At the same time, the increased wear of the suction cup on the ground and the increased negative pressure of the suction cup will produce resistance against the direction of the vacuum cleaner, increasing the fuel consumption of the vacuum cleaner.

[0004] At present, the gap between the suction cup and the ground of the existing foreign and domestic vacuum cleaners is mostly fixed (the suction cup and the ground are severely worn, the life is short, the cleaning effect is not ideal, the maintenance cost is high, and the fuel consumption of the cleaning vehicle is also increased when the suction cup and the ground are worn), There is a common problem that the gap between the suction cups of the vacuum cleaner cannot be adjusted in time or it is inconvenient to adjust. Most vacuum cleaners use manual adjustments to change the gap between the suction cup and the ground.

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