Tensioning tool for simultaneously manufacturing prestressed concrete pipe piles

Abstract

The invention relates to a tensioning tool for simultaneously manufacturing a plurality of prestressed concrete pipe piles. The tensioning tool comprises a fixation plate (9) and a lock plate (3) arranged at two ends of a pipe pile mold (8). The lock plate (3) is provided with a tensioning screw (1), the screw (1) is provided with a locking nut (2) for locking the screw (1), one end of the screw (1) located in the pipe pile mold is provided with a tensioning plate (4) connected with the end plate of a cage of reinforcement, also included is a connection device located in the pipe pile mold (8) and between head and tail ends of two cages of reinforcement, the middle part of the connection device is provided with a through hole having a diameter the same as the inside diameter of the pipe pile, and the connection device is provided with a seal structure for preventing concrete from flowing into the connection device. The inventive tensioning tool is good to practice, that is, the tool can tension the cage of reinforcement, when a concrete pump and a pouring pipe are used for concrete pouring, without influencing pouring of the pouring pipe, and has good sealing performance.

Description

technical field [0001] The invention relates to the field of pipe pile manufacturing, in particular to a tensioning tool for simultaneously manufacturing multiple prestressed concrete pipe piles. Background technique [0002] Prestressed concrete pipe piles are widely used in industries, civil buildings, ports, railways and other fields. During the manufacturing process of prestressed concrete pipe piles, the steel cage in the pipe pile mold needs to be prestressed and tensioned. At present, prestressed concrete pipe piles are Generally, it is manufactured by a single root, and the production efficiency is low. figure 1 When the tensioning tool is shown when manufacturing multiple prestressed pipe piles at the same time, due to the first welded plate 5.1 and the second welded plate 7.1 shown in the figure, the pouring pipe cannot be extended into the multiple pipe pile molds for pouring , This tensioning tool cannot be implemented in the case of using a concrete pump and a ...

AI Technical Summary

Problems solved by technology

[0002] Prestressed concrete pipe piles are widely used in industries, civil buildings, ports, railways and other fields. During the manufacturing process of prestressed concrete pipe piles, it is necessary to prestress and stretch the steel cage in the pipe pile mold. Currently, prestressed concrete pipe piles Generally, a single root is manufactured, and the production efficiency is low. figure 1 When the tensioning tools shown are used to manufacture multiple prestressed pipe piles at the same time, the pouring pipe cannot be inserted into the multiple pipe pile molds for pouring due to the first welded plate 5.1 and the second welded plate 7.1 shown in the figure , such tensioning tools cannot be implemented in the case of concrete pouring using concrete pumps and pouring pipes, when the welding plate is removed to facilitate the pouring of the pouring pipes, the tensioning tool area between the two reinforcement cages cannot be sealed, Cause poured concrete to enter this area, affecting the removal of tensioning tools

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