Telescopic cast-in-place pile reinforcement cage positioning device

By using a servo motor-driven screw and pulley system in conjunction with a hydraulic telescopic rod, the automatic alignment and diameter adjustment of the cast-in-place pile reinforcement cage are achieved, solving the problem that existing devices cannot automatically detect and adjust the position, and improving the automation and stability of positioning.

CN224157686UActive Publication Date: 2026-04-24中交(青岛)城市建设有限公司
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Patent Information

Application Number
CN202520235069.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2026-04-24
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Existing positioning devices for cast-in-place pile reinforcement cages cannot effectively and automatically detect and adjust the position of the reinforcement cage, affecting the positioning effect.

Method used

A retractable positioning device for cast-in-place pile reinforcement cages is adopted. The servo motor drives the lead screw and pulley system to realize the automatic straightening and positioning of the reinforcement cage. Combined with the hydraulic telescopic rod and positioning ring, the diameter can be adjusted to achieve diversified positioning functions.

Benefits of technology

It improves the automation and stability of rebar cage positioning, effectively detects and straightens the vertical state of the rebar cage, and makes flexible adjustments according to the diameter of the rebar cage, reducing the difficulty and cost of operation.

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Abstract

The utility model relates to the technical field of buildings, and discloses a telescopic cast-in-place pile reinforcement cage positioning device which comprises a connecting ring, the periphery of the inner ring of the connecting ring is provided with the same square groove hole, and the two sides of the inner walls of the four square groove holes are provided with moving grooves. An adjusting mechanism and a positioning mechanism are arranged in the connecting ring, the adjusting mechanism comprises four U-shaped bases fixedly connected to the periphery of the top of the connecting ring, the top of one U-shaped base is fixedly connected with a servo motor, the output end of the servo motor is sleeved with a first lead screw through a coupler, and the output end of the first lead screw is sleeved with a second lead screw through a coupler; and inner cavities of the other three U-shaped seats are rotationally connected with a second lead screw, a third lead screw and a fourth lead screw through bearings correspondingly. And through the arranged adjusting mechanism, an operator can conveniently and automatically move the positioning mechanism up and down to detect whether the reinforcement cage is in a vertical and non-inclined state or not and straighten the reinforcement cage, and therefore the using effect of the device can be effectively improved.
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