Vacuum air intake regulating valve

Abstract

The invention discloses a vacuum air intake regulating valve comprising a valve body, a tapered piston, a compression spring and a quick air pipe joint, wherein the valve body comprises a quick KF joint at the head, a corrugated pipe in the middle and a threaded through hole formed in the tail; the quick air pipe joint is connected with the tail of the valve body through the threaded through hole; an air intake regulating chamber is arranged inside the valve body; the tapered piston comprises a piston part and a connecting rod connected with the piston part; the air intake regulating chamber comprises a cylinder; a circular cavity of which the diameter is larger than that of the threaded through hole is arranged inside the cylinder; and a tapered hole is formed in the upper part of the circular cavity. The vacuum air intake regulating valve is relatively small in size, free of electronic elements, capable of voluntarily regulating, simple in structure, low in cost, stable and reliable in working, convenient to mount and dismount, convenient and simple in use and capable of playing a favorable regulating role and is made of a common material which can be voluntarily selected as required; and the vacuum air intake regulating valve is not needed to be powered by electricity, gas and liquid so that power operation is not needed.

Description

technical field [0001] The invention relates to the technical fields of vacuum and machinery, in particular to a vacuum intake regulating valve. Background technique [0002] Control valve, also known as control valve, in the field of industrial automation process control, is the final control element that changes the process parameters such as medium flow, pressure, temperature, liquid level, etc. by means of power operation by receiving the control signal output by the adjustment control unit. It is generally composed of actuators and valves. According to the stroke characteristics, the control valve can be divided into straight stroke and angular stroke; according to the power used by the actuator it is equipped with, it can be divided into three types according to its function and characteristics: linear characteristic, equal percentage characteristic and parabolic characteristic. The control valve is suitable for air, water, steam, various corrosive media, mud, oil and...

AI Technical Summary

Problems solved by technology

The operator must be there all the time and pay attention to the whole process, which is very troublesome and laborious

[0005] In this way, a simple and convenient regulating valve is needed to connect the angle valve and the intake pipeline. It can be installed simply and quickly, can cooperate well with the intake and extraction, and can realize the automatic leveling of the intake and extraction. It can realize the automatic closing of the intake air, but it is difficult for the existing regulating valve to meet this requirement

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