Detachable pipeline connector structure capable of adapting to geological sedimentation

Abstract

The invention discloses a detachable pipeline connector structure capable of adapting to geological sedimentation. The detachable pipeline connector structure comprises a bell mouth pipe body, a spigot pipe body and a sealing ring. A bell mouth section is arranged at the right end of the bell mouth pipe body. A first flat wall section, a bell mouth connecting section and a second flat wall sectionare arranged on the inner wall of the bell mouth section. An internal thread is arranged on the bell mouth connecting section. The left end of the spigot pipe body is provided with a spigot section capable of being inserted into an inner hole of the bell mouth section. The outer wall of the spigot section is provided with a third flat wall section, a spigot connecting section and a fourth flat wall section. The spigot connecting section is provided with an external thread. The external thread is engaged with the internal thread. A gap is reserved between the left side face of the external thread and the right side face of the internal thread. The right side face of the external thread is closely attached to the left side face of the internal thread. The structure can release stress on a connector during geological sedimentation, and is long in service life, excellent in sealing performance, high in axial connecting strength and capable of being disassembled.

Description

technical field [0001] The invention relates to a pipeline interface structure, in particular to a detachable pipeline interface structure adaptable to geological subsidence. Background technique [0002] Pipeline is a device used to transport gas, liquid or fluid with solid particles, which is widely used in hydraulic engineering and various industrial devices. Pipes are usually made of reinforced concrete or other soft materials (such as PE, HDPE, etc.). The application prospect is lower than that of pipes made of soft materials. [0003] The existing connection methods between pipe joints of large-diameter flexible pipes usually include hot-melt butt joint, clamp connection, heat-shrinkable tape connection, threaded connection or card connection, self-locking socket connection, etc., self-locking socket connection, etc. connect. Among them, the self-locking socket connection can be installed with water, the installation space is small, the construction is safer, and th...

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Problems solved by technology

[0004] The traditional socket-and-socket pipe joints are provided with a first annular protrusion on the outer surface of the pipe socket, and a second annular protrusion on the inner surface of the pipe socket. After the socket and the socket are butted, the first annular protrusion The front side of the first annular protrusion is closely attached to the rear side of the second annular protrusion, and the rear side of the first annular protrusion is closely attached to the front side of the second annular protrusion. The pipe joint of this structure may have better sealing performance. Advantages; but there are also the following problems: due to earthquakes, groundwater depletion, new large buildings, etc., different degrees of geological subsidence will be caused. When geological subsidence occurs, the joints of the two pipelines will bend accordingly. The structural connection is very tight, resulting in nowhere to release the stress at the pipe interface, which seriously causes the interface to burst and so on.

[0006] Such a pipeline interface structure also has the following problems. Since there is a gap between the front side of the first type of annular protrusion and the corresponding rear side of the second type of annular protrusion, the rear side of the first type of annular protrusion There is also a gap between the front side of the corresponding second-type annular protrusion, resulting in poor sealing performance at the connection between the socket and the interface, and at the same time, the axial connection strength is not high; in addition, after the pipe is butted, it cannot be disassembled. Can only be removed by violence

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