An air-controlled stable start valve

Abstract

The invention discloses an air control stable starting valve. The air control stable starting valve comprises a valve body, a valve cover, a valve base, a first valve element module, a second valve element module and an adjusting valve module; a first cavity and a second cavity are formed between the valve body and the valve cover; a third cavity is formed between the valve body and the valve base; the first valve element module is arranged in the first cavity; the second valve element module is arranged in the second cavity; an air control base is arranged on the valve cover, and is provided with an air control port; the adjusting valve module includes a base formed on the valve base; a valve inlet communicated with the third cavity is formed in the side wall of the base; a valve outlet communicated with the second cavity is formed in the top of the base; an adjusting valve needle is arranged in the base; a conical head part is arranged at the top of the adjusting valve needle; and a vulcanized colloid is arranged at the external of the conical head part. The air control stable starting valve is simple and reasonable in structure, convenient for installation, lower in manufacturing cost, wider in application range, higher in action sensitivity, higher in sealing performance, longer in service life and stable and reliable in working performance.

Description

technical field [0001] The invention relates to the technical field of pneumatic components, in particular to an air-controlled stable start valve. Background technique [0002] The stable start valve is a pneumatic component used for the safety protection of the pneumatic system. At the initial stage of the pneumatic system, the working pressure is not stable enough. At this time, it only allows a small amount of compressed air to flow through. When the outlet pressure reaches half of the inlet pressure, the The valve is then fully opened to its maximum flow. However, due to the unreasonable structural setting of the common stable start valves on the market, there are usually the following defects in actual work: first, the installation structure is relatively complicated, which makes installation more inconvenient and reduces the assembly efficiency; second, the main valve The core usually adopts an electronic control structure, which not only has high manufacturing costs...

AI Technical Summary

Problems solved by technology

However, due to the unreasonable structural setting of the common stable start valves on the market, there are usually the following defects in actual work: first, the installation structure is relatively complicated, which leads to inconvenient installation and reduces the assembly efficiency; second, the main valve The core usually adopts an electronic control structure, which not only has high manufacturing costs, but is also difficult to apply to inflammable and explosive applications; third, because the regulating valve needle inside the valve is hard-sealed, this sealing method not only affects The processing accuracy is high, and the sealing surface is prone to damage after a period of use, which reduces the sealing performance and shortens the service life of the valve

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