A kind of concrete pipe and its processing technology

Abstract

The invention relates to a concrete pipe and its processing technology. The concrete pipe includes a pipe body and a steel frame arranged in the pipe body. The pipe body includes a middle part and receiving parts and insertion parts respectively located at both ends of the middle part. There is a ring-shaped groove, the end surface of the insertion part is provided with a ring-shaped protrusion, the protrusion corresponds to the groove, and a rubber layer is provided on the protrusion; the pipe body is provided with a ring for fixing the receiving part and the insertion part. fixtures. The invention has the effect of improving the sealing performance of the joint of the concrete pipe.

Description

technical field [0001] The invention relates to the technical field of pipeline transportation, in particular to a concrete pipe and a processing technology thereof. Background technique [0002] Concrete pipes are pipes made of concrete or reinforced concrete to transport fluids such as water, oil, and gas. It can be divided into four types: plain concrete pipe, ordinary reinforced concrete pipe, self-stressed reinforced concrete pipe and prestressed concrete pipe. In the production of concrete pipes, the steel skeleton needs to be made and placed in the pipe mold, and then the centrifuge is started, and the concrete is distributed in the pipe mold under the action of centrifugal force and forms a dense structure. The connection methods of concrete pipes generally include three types: flat pipe, socket-type interface and tongue-and-groove interface. [0003] refer to figure 1 2, the two ends of the existing socket-type concrete pipe 2 are respectively a socket 21 and a s...

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Problems solved by technology

[0004] The above existing technical solutions have the following defects: after the two socket-type concrete pipes are sealed by the rubber ring, the rubber ring is only inserted between the socket and the socket, and there is no corresponding fixing structure to fix the rubber ring on the concrete On the pipe, when the fluid pressure in the concrete pipe is high, the rubber ring is easy to break away from the concrete pipe, resulting in the sealing of the concrete pipe is not tight enough, which further leads to the leakage of the fluid in the concrete pipe

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