Valve

Abstract

The invention relates to a valve, which comprises a valve body, a valve core, a valve rod, a valve rod mounting sleeve and a valve rod mounting passage, wherein the valve rod mounting passage is formed by an internal cavity of the valve rod mounting sleeve; the valve rod is arranged in the valve rod mounting sleeve, is connected with the valve core and is provided with a groove; and the groove runs through in the direction of the longitudinal axis of the groove. The valve is characterized in that: one fourth circumference of the valve rod mounting sleeve is provided with a plurality of through holes corresponding to the height of the groove; the longitudinal axes of the through holes are approximately perpendicular to the longitudinal axis of the valve rod mounting passage; when the flow rate of the valve is required to be locked at a certain value, the groove on the valve rod can be turned to be communicated with a corresponding through hole; and a device for preventing the valve rod from rotating is arranged in the through hole and penetrates through the through hole to be engaged with the groove on the valve rod. The valve has the advantages of simple structure, convenience in operation and capability of controlling and locking the flow rate.

Description

Technical field [0001] The invention relates to a valve. Background technique [0002] The existing lock control valve is equipped with a lock core in the valve stem installation sleeve, which can only lock the open state of the valve, or can only lock the closed state of the valve, but cannot lock the valve according to the actual flow rate required by the valve. Moreover, the structure of the locking device of this valve is very complicated. However, some valves can control the flow by themselves, but in some harsh environments, the flow control is often not in place. For example, under vibration conditions, some valves will rotate on their own under strong vibration, which will seriously affect the flow control and sometimes cause irreparable consequences. Summary of the invention [0003] The purpose of the present invention is to provide a valve with a simple structure and easy operation that can be controlled and can lock the flow. [0004] The technical solution adopted by...

AI Technical Summary

Problems solved by technology

[0002] In the existing lock control valve, a lock core is set in the valve stem installation sleeve, which can only lock the valve in the open state, or can only lock the valve in the closed state, but cannot lock the valve according to the actual flow required by the valve. Moreover, the structure of the locking device of this valve is very complicated.

However, some valves can control the flow by themselves, but in some harsh environments, the flow control is often not in place

For example, under the condition of vibration, some valves will rotate automatically under the action of strong vibration, which seriously affects the flow control, sometimes causing irreparable consequences.

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