Conical Z-shaped valve core type electric four-way valve

Abstract

The invention provided a cone Z-shaped valve core typed electric four-way valve, belonging to the design, manufacture and application technical field of valves. The cone Z-shaped valve core typed electric four-way valve is characterized in that four liquid pipes which are vertical to each other extend outwards on the same plane below a thick wall with the internal chamber being a taper cylindrical valve body; the center of a flange passes through a mainshaft; the upper part of the mainshaft is provided with a lead screw; the mainshaft sequentially passes through a Z-shaped valve core and an indexing rotation ring in a cone chamber, extends out two retainers downwards, is fixed on the main gear of a clapboard and engaged with the mainshaft lead screw by an internal thread. The mainshaft is closely fixed with the Z-shaped valve core and the indexing rotation ring. The indexing rotation ring extends out a pulling rod which faces to a limit switch. The main gear is engaged with a motor outlet shaft gear by a transition gear set. After the cone Z-shaped valve core typed electric four-way valve is executed, a water hammer phenomenon during flowing cutting is thoroughly eliminated, situations such as instant shutoff pressure, vibration, etc. are eliminated, the pre-stroke pipe section is greatly shortened, and the length of the whole machine is shortened by nearly 1 / 3 compared with an imported product; a volume pipe can be arranged on an automobile and taken as a movable verification platform, thus having wider and more convenient application.

Description

technical field [0001] The invention belongs to the technical field of valve design, manufacture and application. Background technique [0002] The electric four-way switching valve (general valve) used in "One Ball One Valve Two-way Electric Four-way Standard Volume Tube" abroad uses mechanical gear transmission to make the valve shaft lift up and drive the two separated semi-cylindrical valve pieces to shrink inward. And after turning in place and switching to the right position, the valve shaft moves downward to expand the valve plate outward, and at the same time, the cylinder wall acts as a seal. There are two shortcomings in this principle. One is that the gap between the inner wall and the inner tube wall of about 2 to 3 mm plays a role in the discharge and circulation of the liquid when it is retracted. In the process of switching large flow, it is easy to cause an increase in the steering torque and an instantaneous flow failure. That is, the phenomenon of pressure...

AI Technical Summary

Problems solved by technology

There are two shortcomings in this principle. One is that the gap between the inner wall and the inner tube wall of about 2 to 3 mm plays a role in the discharge and circulation of the liquid when it is retracted. In the process of switching large flow, it is easy to cause an increase in the steering torque and an instantaneous flow failure. That is, the phenomenon of pressure suppression, liquid shock and vibration of equipment

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