Self-intake type air cylinder and air compressor provided with self-intake type air cylinder

Abstract

The invention discloses a self-intake type air cylinder and an air compressor provided with the self-intake type air cylinder. The self-intake type air cylinder comprises an air cylinder body. The air cylinder body comprises a cylinder barrel, a piston and a seal ring. The piston conducts reciprocating motion in the cylinder barrel. The piston is sleeved with the seal ring. The piston and the cylinder barrel are in close fit through the seal ring. An included angle is formed between the axial direction of the seal ring and the motion direction of the piston. The cylinder barrel is provided with an air outlet. The air outlet is provided with a one-way valve. The self-intake type air cylinder comprises the cylinder barrel, the piston and the seal ring; the piston conducts reciprocating motion in the cylinder barrel; the piston is sleeved with the seal ring; the piston and the cylinder barrel are in close fit through the seal ring; the included angle is formed between the axial direction of the seal ring and the motion direction of the piston, namely the seal ring and the cylinder barrel are arranged in a relatively tilting mode. As a result, when the piston is pulled out till one edge of the seal ring breaks away from one edge of the cylinder barrel, air enters the cylinder barrel through the position. By means of the self-intake type air cylinder, an air inlet unit does not need to be additionally arranged on the cylinder barrel, therefore, the structure is simpler, the weight is lowered, the size is reduced, and miniaturization and portability of the portable air compressor are facilitated.

Description

technical field [0001] The application belongs to the technical field of air compressors, and in particular relates to a self-intake cylinder and an air compressor with the self-intake cylinder. Background technique [0002] The air compressor in the prior art includes a casing and air compression equipment arranged inside the casing. These air compressors are inconvenient to use and carry due to their large volume. In order to be easy to carry and use, portable air compressors have emerged as the times require , the portable air compressor is to make the volume of the air compressor as small as possible and the weight lighter to facilitate portability and handling, but this will affect the layout and settings of the internal equipment of the air compressor. The components all need to be as light and compact as possible. Air compression equipment and pressure measurement equipment are the main components of the air compressor, which occupy a large volume and have a large we...

AI Technical Summary

Problems solved by technology

[0003] The cylinder of the portable air compressor in the prior art generally includes a cylinder barrel and a piston. The cylinder barrel is provided with an inlet valve and an air outlet valve. Air enters the cylinder barrel through the inlet valve, and the piston performs reciprocating motion compression Air, the compressed air enters the air storage tank or the equipment to be inflated through the air outlet valve. The air inlet valve and the air outlet valve set on the cylinder occupy a large space inside the air compressor casing, which affects the portable air compressor. The development of the direction of development; and the working efficiency of the cylinder is closely related to the intake air volume of the intake valve. If the intake air volume of the intake valve is small, the working efficiency of the cylinder will be low

In addition, a device for measuring air pressure is generally installed at the air outlet of the air compressor. Most of the existing technologies use ordinary air pressure gauges, which have a relatively complicated structure and heavy weight, which seriously affects the miniaturization of portable devices. and portability

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