Normally-closed air inlet valve of air compressor

A technology of air compressors and intake valves, which is applied in mechanical equipment, machines/engines, and liquid displacement machinery, etc., and can solve problems such as complex air supply methods of intake valves, poor sealing performance of intake valves, and complex structures , to achieve significant effects of pressure relief and air supplementation, ensure oil circulation, and facilitate operation

Pending Publication Date: 2018-08-21
WENZHOU MANTURE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The utility model is to provide a normally closed intake valve of an air compressor, which solves the problem of poor sealing performance of the intake valve in the prior art, relatively complicated air supply mode of the intake valve, complex structure, and many leakage points. question

Method used

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  • Normally-closed air inlet valve of air compressor
  • Normally-closed air inlet valve of air compressor
  • Normally-closed air inlet valve of air compressor

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0017] Combine below Figure 1 to Figure 5 To describe in detail the utility model, a normally closed intake valve of an air compressor includes a valve body 1, and the valve body 1 is provided with a pressure inlet 5, a pressure relief hole 6 and a cavity 4 in the valve body, The pressure inlet hole 5 is connected with a gas pipeline interface, and the valve body 1 is fixedly connected with an upper cover body 2 by bolts, and the upper cover body 2 is provided with an air inlet hole 21, which is characterized in that: the cavity body 4 A piston 43 is arranged in the cavity, a piston cap 42 is fixedly connected to the opening end of the cavity 4, and the piston 43 is slidably arranged relative to the piston cap 42, an...

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PUM

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Abstract

The invention relates to a normally-closed air inlet valve of an air compressor. The normally-closed air inlet valve comprises a valve body. The valve body is provided with a pressure rising hole, a pressure release hole and a cavity located in the valve body. A gas pipeline connector is connected with the pressure rising hole. An upper cover body is connected with the valve body and provided withan air inlet. A piston is arranged in the cavity. A piston cap is fixed to the cavity. The normally-closed air inlet valve further comprises a sealing top. The sealing top is connected to the pistonin a sleeving mode. A scram spring is arranged at the sleeving joint of the sealing top and the piston. A reset spring is arranged at the bottom of the piston and the bottom of the cavity. An electromagnetic valve is connected to the valve body. The sealing top, the piston and the piston cap are provided with sealing rings correspondingly. An upper cover body O-shaped ring is arranged at the air inlet of the upper cover body. Pressure in the air compressor is released through a hollow pipeline in the piston, the piston cap and the sealing top from the pressure release hole, thus, the purpose of pressure release is achieved, a gap is formed between the sealing top and the upper cover body O-shaped ring in the pressure release process, air supply of the air inlet valve is achieved through the gap, and oil circulation is ensured.

Description

technical field [0001] The utility model relates to an accessory of an air compressor, in particular to a normally closed intake valve of the air compressor. Background technique [0002] The screw air compressor intake valve is an important part of the air compressor, which is used for the intake control of the air compressor. It usually also includes a solenoid valve and a discharge valve, which are connected by pipelines. The Chinese patent document with the authorized announcement number CN202768393U discloses a screw air compressor intake valve, which includes a valve body with an air intake hole, an inner cavity and a pressure relief hole. The valve body includes a lower valve body and an upper valve body. It is characterized in that: the lower valve body is provided with an O-ring groove, an O-ring is placed in the O-ring groove, a cylinder body is arranged inside the inner cavity, a sealing top surface is arranged on the upper part of the cylinder body, and the cylin...

Claims

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Application Information

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IPC IPC(8): F04B39/10
CPCF04B39/1013
Inventor 张章孙光仲
Owner WENZHOU MANTURE TECH
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