Underwater PVC pipeline

Abstract

The invention belongs to the technical field of pipeline installation, and particularly relates to an underwater PVC pipeline. The underwater PVC pipeline comprises a main pipe, a branch pipe and a connecting pipe; a branch hole is formed in the side face of the main pipe; the branch pipe is fixedly connected to the interior of the branch hole; the connecting pipe is arranged on the side face of the side, deviating from the main pipe, of the branch pipe; a same connecting ring is arranged between the branch pipe and the connecting pipe; a rotating ring is rotationally connected to the surface of the connecting ring; uniformly-arranged inclined tops are fixedly connected to the inner surface of the rotating ring; uniformly-arranged guide grooves are formed in the groove bottoms of two rotating grooves; and adjusting blocks are connected to the interiors of the guide grooves in a sliding mode. According to the underwater PVC pipeline, butt joint of pipe with different pipe diameters and effective connection under the condition that the size deviation of the butt joint pipe diameters is large are effectively realized, through the adjustable connecting ring, effective support of connection between the branch pipe and the connecting pipe is guaranteed, the firmness of connection between the branch pipe and the connecting pipe is guaranteed, and meanwhile, the connecting sealing performance between the branch pipe and the connecting pipe is further improved.

Description

technical field [0001] The invention belongs to the technical field of pipeline installation, in particular to an underwater PVC pipeline. Background technique [0002] PVC pipe is rigid polyvinyl chloride pipe, which is extruded by hot pressing after combining polyvinyl chloride resin with stabilizer, lubricant, etc. It is the earliest plastic material to be developed and applied. [0003] According to CN103542191A, a PVC pipe, the invention is composed of a silicon core pipe in the inner layer and a wear-resistant pipe in the outer layer. Its structure is simple, and the reinforcing rib can improve the use strength of the PVC pipe. It is convenient to connect and install through the PVC pipe joint. Reduce work procedures, improve work efficiency, and the luminescent film provided increases aging time and improves service life. [0004] However, in the prior art, PVC pipes are widely used in water transportation instead of metal pipes. When the PVC pipes are installed unde...

AI Technical Summary

Problems solved by technology

[0007] The technical solution adopted by the present invention to solve its technical problems is: a kind of underwater PVC pipeline according to the present invention, including a main pipe, a branch pipe and a connecting pipe; the side of the main pipe is provided with a branch hole; the inside of the branch hole is There is a branch pipe fixed; the side of the branch pipe away from the main pipe is provided with a connecting pipe; the same connecting ring is provided between the branch pipe and the connecting pipe; the surface of the connecting ring is provided with a rotation groove at the position of the branch pipe and the connecting pipe ; The inside of the rotating groove is connected with a rotating ring; the inner surface of the rotating ring is fixedly connected with a uniformly arranged inclined roof; the groove bottoms of the two rotating grooves are provided with uniformly arranged guide grooves; The inside of the guide groove is slidably connected with an adjustment block; the same sealing film is fixedly connected between the adjustment blocks located in the same rotation groove; the opposite side of the branch pipe and the connecting pipe are provided with sealing grooves; Sealing rings are installed inside the sealing groove; when working, PVC pipes are hard polyvinyl chloride pipes, which are made of polyvinyl chloride resin, stabilizers, lubricants, etc., and then extruded by hot pressing. It is the earliest developed and applied pipe. In the prior art, PVC pipes are widely used in water transportation instead of metal pipes. When the PVC pipes are installed underwater, the PVC pipes are directly buried in the embankment silt or directly at the bottom of the water, because the underwater soil is more Loose, the PVC pipe cannot be effectively supported. When the PVC pipe transports water, due to the change of the pipe weight, the silt at the bottom of the pipe is prone to local collapse, which in turn causes insufficient support or uneven support at the bottom of the pipe. At the same time, the pipe’s The interface position is directly plugged in, and the seal between the pipes is realized through the sealing ring. When the support strength is uneven, the joint of the pipes will break or the seal will fail. Compared with metal pipes, PVC pipes are processed and stored. In the process, it is easy to appear that the pipe interface is out of round, and there are deviations in different pipe sizes, which affects the effective sealing connection between the pipes and other problems. Through a kind of underwater PVC pipe of the present invention, when it is necessary to adjust the branch pipe and When the connecting pipe is connected, a connecting ring is installed between the branch pipe and the connecting pipe, and the sealing of the branch pipe and the connecting pipe is realized through the connecting ring, and then the two rotating rings on the surface of the connecting ring are rotated respectively, and the rotation of the rotating ring will drive the evenly arranged corresponding surfaces. The movement of the inclined block will drive the movement of the adjustment block through the inclined top. Through the mutual cooperation between the adjustment blocks, the fixation and further sealing between the branch pipe and the connection pipe can be realized. Through the invention, the butt joint of different pipe diameters and the butt pipe diameter can be effectively realized. The effective connection in the case of large size deviation, through the adjustable connecting ring, ensures the effective support of the connection between the branch pipe and the connection pipe, ensures the firmness of the connection between the branch pipe and the connection pipe, and further improves the connection between the branch pipe and the connection pipe. The tightness of the connection between

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