Multipurpose manual-automatic integrated valve actuator

Abstract

The invention discloses a multipurpose manual- automatic integrated valve actuator, and belongs to the technical field of valve actuators. The problem of complex and strenuous operation is solved. According to the key points of the technical scheme, the multipurpose manual- automatic integrated valve actuator comprises an upper box body, a lower box body, an electric gearbox assembly, a manual actuating component and an inductive switch circuit board; the manual actuating component comprises a valve rod connecting shaft, a spring, a manual-automatic connecting shaft, a switch cam, a limit connecting shaft and a handle; the lower end of the valve rod connecting shaft is provided with a valve groove for inserting a valve rod, and the upper end of the valve rod connecting shaft is provided with a pedestal for supporting the spring; the manual-automatic connecting shaft is provided with a hollow structure, sleeved with the valve rod connecting shaft, and circumferentially fixed; and the outer side of the manual-automatic connecting shaft is provided with a spline part matched with a clutch of the electric gearbox assembly, and the switch cam is sleeved with the manual-automatic connecting shaft, and circumferentially fixed. The limit connecting shaft is inserted into the upper end of the manual-automatic connecting shaft, and fixed circumferentially, and the handle is sleeved with the upper end of the limit connecting shaft, and fixed circumferentially; the effects of convenient operation and manual-automatic integration are achieved, and finally an inner key groove of an output wheel and a manual connecting rod are directly combined to drive a valve rod of the valve; and in this way, the valve can be easy to open and close during manual operation.

Description

technical field [0001] The invention relates to the field of valve actuators, which can be applied to automatic fluid on-off control valves, network remote control valves, etc. for national defense, science and technology, shipbuilding, industry, and civil use. In particular, it relates to a multi-purpose manual-automatic integrated valve actuator. Background technique [0002] Generally speaking, the actuator is an indispensable and important part of the automatic control system. Its function is to accept the control signal sent by the controller, change the size of the controlled medium, and maintain the controlled variable at the required level. Numerically or within a certain range, actuators can be divided into three categories: pneumatic, hydraulic, and electric according to their energy forms. Valve actuators are mechanical devices that control valves. [0003] Authorized announcement number is disclosed in the patent technical document of CN 212839684 U, a kind of ha...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned manual operation and automatic operation are not simplified enough. The structure of the adjustment block hinders the installation of the actuator in a narrow space, and it is inconvenient to operate, which affects the overall use effect. With the requirements of module integration, space utilization and device integration assembly The requirements are getting higher and higher, this is a new problem to be solved

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