Freezing pipe grouting non-return device
The technology of a non-return device and a freezing pipe is applied in the fields of infrastructure engineering, soil protection, construction, etc., and can solve the problems of shallow water resources loss, easy conduction of water and sand, affecting construction safety, etc.
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[0010] The present invention will be further described in conjunction with the accompanying drawings and implementation examples.
[0011] As shown in the accompanying drawings, this freezing pipe grouting check device has an outer pipe 1, and the outer pipe 1 adopts a pipe body with the same inner and outer diameters as the freezing pipe 11 used. An inner tube 2 is arranged inside the outer tube 1, and the inner tube 2 is placed at the center of the outer tube 1, and the length of the inner tube 2 is shorter than that of the outer tube 1. The lower ends of the outer tube 1 and the inner tube 2 are provided with a lower end sealing plate 3 that simultaneously forms the lower ends of the outer tube 1 and the inner tube 2 . During specific implementation, the lower end sealing plate 3 can also be set as a downwardly protruding conical plate, so as to facilitate the lowering of the tube. The inner tube 2 is provided with a spring 4 and a sphere 5 placed above the spring, the dia...
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