An equal-diameter pipe connection structure

Abstract

The invention discloses a connecting structure for pipes with the equal diameter and belongs to the technical field of pipeline connection. The connecting structure for the pipes with the equal diameter comprises a pipe fitting and the pipes. One end of each pipe is connected with the pipe fitting. An outer sealing ring and an inner sealing ring are arranged between the pipe fitting and each pipe. A groove structure and a protruding structure corresponding to the groove structure are arranged on the contact face of the pipe fitting and the contact face of each pipe respectively. According to the technical scheme, the groove structures are formed in the inner wall of the pipe fitting, the protruding structures are arranged on the outer walls of the pipes, when the pipe fitting is connected with the pipes, the groove structures are matched with the protruding structures, and the convenient mounting effect can be achieved without auxiliary tools; the inner sealing rings and the outer sealing rings are arranged between the connecting faces of the pipe fitting and the pipes, internal and external dual sealing is achieved, and a good sealing effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of pipe connection, and relates to a pipe transfer structure in water heating facilities, in particular to an equal-diameter pipe connection structure. Background technique [0002] At present, there are many types of plastic (PP-R) pipe fittings in the plumbing market. Generally, rigid pipes need to be connected through two-way fittings at corners, and three-way, four-way and other pipes at branch points. Under normal circumstances, the diameter of the metal two-way, three-way, and four-way pipe fittings is larger than the diameter of the pipe to be connected, and the two are connected by threads, but plastic pipes and pipes are not suitable for threaded connections due to poor processing performance. With the gradual improvement of people's quality requirements for industrial products, there have been equal-diameter tees with many advantages such as beautiful appearance, smooth surface, light weight, and g...

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Problems solved by technology

[0003] However, the disadvantage of connecting hot-melt plastic pipe fittings and equal-diameter pipes is that, on the one hand, special equipment is needed to assist, and the operation is very inconvenient, especially when installing at high altitude or in a narrow space, the installation work will become more difficult; on the other hand On the one hand, when two equal-diameter pipes are connected, they also need to pass through pipe joints, which makes the shape and structure relatively bloated; in addition, due to the technological requirements of hot melting, and at the same time to ensure that the joints of pipe fittings are firm, it is necessary to ensure a thicker pipe wall thickness, so that the use of pipe fittings More materials, increased production costs

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