Safety valve easy to manufacture and install

The safety valve easy to manufacture and install comprises a valve body, two fixing pipes and a reinforcing mechanism, the side wall of the valve body is symmetrically and fixedly connected with two first connecting pipes, each first connecting pipe is fixedly sleeved with a threaded pipe, each fixing pipe is internally and fixedly connected with a second connecting pipe, and the second connecting pipes are fixedly connected with the reinforcing mechanism. The side wall of each fixing pipe is fixedly sleeved with a circular ring, and each circular ring is provided with an annular groove. According to the device, the fixing pipe and the threaded pipe are connected through threads, a rotary knob, a rotating rod, a worm and a worm wheel are arranged in a matched mode to drive a threaded rod to rotate, the threaded rod, a threaded sleeve, a transverse rod and a push block can drive a plug pin to move and be inserted into a fixing hole, and the fixing pipe can be limited through the plug pin and the fixing rod; a