A multifunctional prestressed concrete pipe and its manufacturing method

Abstract

The invention relates to the technical field of concrete pipe production, in particular to a multifunctional prestressed concrete pipe and a production method thereof, comprising a mold base, the lower end of the mold base is provided with a pressure-bearing base, and the upper end of the mold base is concentrically and vertically sleeved with a The beneficial effects of the inner liner and the outer pipe are: the present invention is provided with connecting pieces at the upper and lower ends of the prestressed steel wire, so as to realize the stretching adjustment of the extension force and winding force of the prestressed steel wire, cooperate with the middle ring, the upper The interface ring and the lower interface ring can fix the stretching position, thereby reducing the production accuracy requirements of the prestressed steel wire, and the convenient prestress adjustment can be achieved by controlling the length of the steel cylinder and the position of the middle ring; through Set the extrusion fit between the demoulding inner cavity and the pressure-bearing base, so as to achieve the extrusion and demoulding of the prestressed concrete pipe after pouring, and convert the self-gravity of the prestressed concrete pipe into the extrusion force of demoulding. To achieve the purpose of rapid demoulding.

Description

technical field [0001] The invention relates to the technical field of concrete pipe production, in particular to a multifunctional prestressed concrete pipe and a production method thereof. Background technique [0002] Prestressed steel tube concrete pipe refers to a water pipe made by winding a hoop prestressed steel wire on a high-strength concrete core with a steel cylinder, and then spraying a dense cement mortar protective layer on it. It is a composite pipe composed of thin steel plate, high-strength steel wire and concrete. It fully and comprehensively exerts the tensile strength and easy sealing of steel and the compression and corrosion resistance of concrete. It has high sealing performance, high strength and high resistance. seepage characteristics. [0003] The prestress of the existing prestressed steel cylinder concrete pipe is controlled by the prestress steel wire wound on the outer wall of the steel cylinder. However, the prestress generated by the prestr...

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Problems solved by technology

[0003] The prestress of the existing prestressed steel cylinder concrete pipe is controlled by the prestress steel wire wound on the outer wall of the steel cylinder. However, the prestress generated by the prestress steel wire is fixed and difficult to adjust, and the existing prestress steel cylinder The concrete pipe lacks a demoulding device during the production process, which leads to greater damage to the outer wall after the pouring is completed

[0004] To this end, a multi-functional prestressed concrete pipe and its manufacturing method are provided to solve the prestress adjustment problem and the production and demoulding problem of the prestressed steel cylinder concrete pipe

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