A rotary three-way valve

Abstract

The invention discloses a rotary three-way valve, which belongs to the field of control valves and solves the problems of inconvenient processing and installation of the rotary three-way valve and low accuracy of flow control. device, the driving device is connected to the valve body, and the valve body is connected to the valve seat to form a valve chamber. There is a planetary gear mechanism and a rotary slider. A slider gear is provided on the rotary slider, and the slider gear is meshed with the planetary gear mechanism for transmission. The side of the rotary slider facing the planetary gear mechanism is provided with a pin, which is fitted on the pin There is an elastic element, the elastic element is against the valve body, and the slider gear, the pin and the rotary slider are integrally formed. In the present invention, the rotary slider, the pin and the slider gear are connected as a whole, which reduces the difficulty of assembling the rotary slider and the slider gear, and ensures that the elastic element provides a stable pre-tightening force for the rotary slider.

Description

technical field [0001] The invention relates to the field of control valves, in particular to a rotary three-way valve. Background technique [0002] The valve can be divided into direct-acting valve and rotary valve. The direct-acting three-way valve mainly realizes the switching of two inlets or outlets through the linear movement of the spool. Realize the opening and closing switching and flow control of two inlets or outlets. The traditional rotary three-way valve generally has disadvantages such as complex structure, large volume and high power consumption. [0003] In order to solve the above problems, the prior art provides a rotary valve, which includes a valve body, a bonnet covering the valve body, and a motor arranged on the bonnet. The bonnet cooperates with the valve body to form an accommodating cavity inside. The valve body is provided with a main exhaust channel, a first air distribution channel and a second air distribution channel. The slider rotation me...

AI Technical Summary

Problems solved by technology

In the above scheme, the switch between the main exhaust channel and the first air distribution channel and the second air distribution channel is realized through the rotation of the slider rotating mechanism, but the transmission of the motor driving the rotating slider is relatively small, and the spring rotates on the slider The stability of the mechanism is poor during rotation, which affects the sealing and normal rotation of the slider, which is not conducive to the precise control of the flow of each air channel

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