Siphon rain gauge capable of being stably installed on concave-convex road surface for water conservancy

The utility model discloses a siphon rain gauge capable of being stably installed on a concave-convex road surface for water conservancy. The siphon rain gauge comprises a main body and a water collecting cylinder, the front part of the main body is connected with a box door, the main body can be used for mounting the device, and the main body is internally connected with a funnel. According to the siphon rain gauge capable of being stably installed on the concave-convex road surface for water conservancy, the installation plate can be driven to move when the inner threaded cylinder slides in a threaded mode, the ground can be extruded when the installation plate moves, and the height of the main body can be adjusted when the installation plate extrudes the ground, so that the main body can be conveniently installed on the concave-convex ground; the positioning block can slide through the first notch and the second notch when moving, the self-recording clock can be detached when sliding out of the fixing groo