open and shuting device of a valve

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve opening / closing apparatus for piping improved in installation structure, The object of the technical implementation is to simplify the structure of the power combination provided by the valve opening / closing device for piping for interrupting the flow of the fluid or the gas, and also to provide a power combination having such a structure, The present invention is not limited to the above-described embodiments, and it is an object of the present invention to provide an apparatus and a method for mounting and disassembling the same in a casing body having a mounting structure, , And a piping valve opening / closing apparatus improved in an installation structure that can improve watertightness extremely. In order to accomplish the above object, according to a concrete means of the present invention, A pair of fixing brackets, a finish plate provided with an operation shaft installation hole, a casing main body having an installation guide groove formed therein, An upper finishing cover integrally protruding from the drive shaft mounting tube and the follower shaft mounting tube and detachably coupled to the upper surface of the casing main body; And a power combining assembly accommodated in the casing main body.