Speed adjustable time delay valve

Abstract

The invention discloses a speed adjustable time delay valve and relates to the technical field of valves. The speed adjustable time delay valve comprises a shell. The right portion of the shell communicates with an input pipe. The right end of the input pipe communicates with a four-way pipe joint. The left end of the shell communicates with an output pipe. The left end of the output pipe communicates with a three-way pipe joint. A main circulation pipe and an auxiliary circulation pipe communicate with the top end and the bottom end of the four-way pipe joint correspondingly. A three-way valve communicates between a main adapter pipe and an auxiliary adapter pipe. The left end of the three-way valve communicates with a connecting pipe. A one-way valve is mounted in the connecting pipe. The bottom end of the connecting pipe communicates with the top end of the three-way pipe joint. The pipe diameters of the main adapter pipe and the auxiliary adapter pipe are both greater than the pipediameters of the main circulation pipe and the auxiliary circulation pipe. A piston is slidably inserted in the shell in a sealing mode. The bottom of the outer side face of the piston is provided with a through hole. The speed adjustable time delay valve has the beneficial effects that the speed adjustable time delay valve controls the sliding speed of the piston along the shell through adjustment of the ratio of the pipe diameter of the main adapter pipe and the auxiliary adapter pipe to the pipe diameter of the main circulation pipe and the auxiliary circulation pipe so as to control the opening and closing speed of a valve body, and is easy and convenient to operate and smooth in use.

Description

technical field [0001] The invention relates to the technical field of valves. Background technique [0002] The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the transmission of the conveying medium, and the valve will choose the appropriate type of valve according to the different usage scenarios. When it is necessary to control the opening and closing speed of the valve, A delay valve is usually used, but the opening and closing speed of the traditional delay valve is fixed, so it cannot be adjusted in speed, and its use is limited. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an adjustable-speed time-delay valve in view of the above technical deficiencies. The sliding speed of the piston along the housing is controlled by adjusting the pipe diameter ratio between the main adapter pipe and the auxiliary adapter pipe and the main flow pipe ...

AI Technical Summary

Problems solved by technology

[0002] The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the transmission of the conveying medium, and the valve will choose the appropriate type of valve according to the different usage scenarios. When it is necessary to control the opening and closing speed of the valve, A delay valve is usually used, but the opening and closing speed of the traditional delay valve is fixed, so it cannot be adjusted, and its use is limited.

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