a gas supply device

Abstract

The invention relates to an air supply device which comprises a piston, an air cylinder, an air pipe and a one-way valve. A stroke space, an air inlet and an air outlet are formed in the air cylinder, the air inlet and the air outlet are communicated with the stroke space, the one-way valve is arranged between the stroke space and the air outlet, the piston is arranged in the stroke space, and a return spring for piston returning is arranged between the piston and the air cylinder; a cam disc is arranged on the left side of the air cylinder and is connected with the left end of the air cylinder through a shaft rod, the cam disc can rotate around the shaft rod, and the cam disc can extrude the piston rightwards in the rotating process. When the air supply device is used for inflating tires, the inflating speed is high, air flow has no fluctuation during air inflation, the high adaptability is achieved, and meanwhile the gas displacement is large. In addition, an air pressure meter is arranged on the air pipe, and the internal pressure of the tires can be monitored in real time; and an air filtering net is connected to the air inlet, dust can be prevented from entering the tires along with the air. The cam disc is arranged on the left side of the air supply device, and a user can inflate air to the tired by rotating the cam disc.

Description

technical field [0001] The invention relates to an air supply device. Background technique [0002] Car air pumps are also called inflators, air pumps, and car air pumps. They generally work through the operation of an internal motor. When pumping air into the tire, the valve is closed by the air pressure in the air cylinder, and the gas enters the tire, which can be regarded as using the principle of atmospheric pressure to inflate. However, some existing automobile tire pumps have simple structure and single function. The tire pressure does not have a good control and adjustment function, resulting in unstable air pressure, damage to the tire, and affecting the service life of the tire. At the same time, electric power is needed for the operation of the motor, so this vehicle air pump is not suitable for outdoor use. Contents of the invention [0003] Aiming at the problems existing in the prior art, the object of the present invention is to provide a technical solutio...

AI Technical Summary

Problems solved by technology

When pumping air into the tire, the valve is closed by the air pressure in the air cylinder, and the gas enters the tire, which can be regarded as using the principle of atmospheric pressure to inflate. However, some existing automobile tire pumps have simple structure and single function. The tire pressure does not have a good control and adjustment function, resulting in unstable air pressure, damage to the tire, and affecting the service life of the tire

At the same time, the motor needs electricity to run, so this kind of car air pump is not suitable for outdoor use

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