Hidden pipe connector for modifying saline-alkali soil

Abstract

The invention discloses a hidden pipe connector for modifying saline-alkali soil, and belongs to the technical field of engineering drainage. The connector comprises an inner sleeve pipe. The outer wall center position of the inner sleeve pipe is provided with a connection part. The outer wall of the connection part is provided with an outer sleeve pipe. A hollow cavity is formed between the inner sleeve pipe and the outer sleeve pipe. A hidden pipe is inserted in the hollow cavity. Through the arrangement of the outer sleeve pipe and the inner sleeve pipe the hollow cavity is formed. One end of the hidden pipe is plugged in the hollow cavity. At the same time an exhaust device is employed to empty the air in the hollow cavity. When the hidden pipe has a potential to be plugged out, a vacuum condition is formed between the inner sleeve pipe and the outer sleeve pipe, thus preventing the hidden pipe from being plugged out even further, and ensuring the enough connection strength of the hidden pipe connector. The connector has the advantages of being simple in structure, reasonable in design, strong in practicality, and convenient in operation. The connection strength of the hidden pipe connector is high, the sealing property is good. The service life is long and the market promotion prospect is tremendous.

Description

technical field [0001] The invention relates to the technical field of engineering drainage, in particular to an underground pipe connection joint used for soil improvement in saline-alkali land. Background technique [0002] As we all know, one of the most common technologies used in the improvement of saline-alkali land is the salt discharge technology of the hidden pipe, which is simple in structure and easy to use. The length of a long hidden pipe is generally 100 meters in length, which is more convenient during the laying process. The second is to use a shorter hidden pipe, generally about 10 meters in length. The shorter the length of the hidden pipe, the easier it is to lay. In the process, the number of joints of the underground pipe is more, due to the difference in the geographical area of ​​construction, such as the cold area in the north, due to the defect that the material of the underground pipe is hardened by the cold in winter and is easy to break, it is not...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of underground pipe connection joint used for saline-alkali soil improvement, to solve the problem that the existing underground pipe connection joint proposed in the above background technology uses iron wire for binding, and it is difficult to grasp the force. If it is twisted off, the hidden pipe is easy to be injured and damaged, which shortens the service life of the hidden pipe. Its tightness will cause water leakage and salt leakage, which will affect the effect of land improvement. There is also a problem of long-term use, and the iron wire will break after corrosion, which will affect its fastening effect and cause salt leakage.

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