一种基桩抗拔试验连接锁定装置
By designing a connection locking device for pile pull-out testing, and utilizing components such as anchor plates, first anchor beams, and jacks, the pull-out test of reinforcing bars can be achieved. This solves the problem of high cost in existing pile pull-out testing technologies, reduces testing costs, and improves efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN LUYUAN ENG QUALITY INSPECTION CO LTD
- Filing Date
- 2025-08-03
- Publication Date
- 2026-07-17
AI Technical Summary
The existing pile pull-out test device is too expensive, and the need to prefabricate a second support pier increases the overall cost.
Design a connection locking device for pile pull-out test, including an anchor plate, a first anchor beam, a connecting rod, a second anchor beam, a locking device, and a guiding device. The locking device fixes the reinforcing bars, and the anchor plate and connecting rod are driven by a jack to realize the pull-out test of the reinforcing bars, avoiding the need to build a second pier.
The cost of pile pull-out tests has been reduced by simplifying the device structure, reducing unnecessary construction steps, and improving testing efficiency.
Smart Images

Figure CN224514286U_ABST
Abstract
Claims
1. A connection locking device for pile pull-out test, characterized in that: It includes an anchor plate (11), a first anchor beam (12) disposed below the anchor plate (11), and a connecting rod (13) connecting the anchor plate (11) and the first anchor beam (12). At least two second anchor beams (14) for clamping the reinforcing bars (101) are provided above the first anchor beam (12). A fixing member for fixing the reinforcing bars (101) is provided above the second anchor beams (14). A locking device for clamping the reinforcing bars (101) is also provided on the second anchor beams (14). A guide device is provided between the first anchor beam (12) and the second anchor beams (14).
2. A test lock for a pile pull test according to claim 1, wherein: The locking device is a screw (16) that passes through the second anchor beam (14) and nuts at both ends of the screw (16).
3. The pile pull-out test connection locking device according to claim 1, characterized in that: The guiding device consists of a guide rod (18) on the first anchor beam (12) and a circular hole on the second anchor beam (14) that matches the guide rod (18).
4. A pile uplift test connecting locking device according to claim 1, characterized in that: A plurality of first openings (121) are provided on the first anchor beam (12), and the plurality of first openings (121) are located on the same straight line; a second opening corresponding to the first opening (121) is provided on the anchor plate (11); the first end of the connecting rod (13) passes through the second opening and is fixed to the anchor plate (11), and the second end of the connecting rod (13) passes through the first opening (121) and is fixed to the first anchor beam (12).
5. A test lock for a pile pull test according to claim 4, wherein: The first end of the connecting rod (13) is fixed to the anchor plate (11) by a nut, and the second end of the connecting rod (13) is fixed to the first anchor beam (12) by a nut.
6. A pile uplift test connecting locking device according to claim 3, characterized in that: Both ends of the first anchor beam (12) and the second anchor beam (14) in the length direction have lifting rings (21).
7. A test lock for a pile pullout test according to claim 1, wherein: The fastener includes a tool anchor (22) and a metal washer (23). The metal washer (23) has a through hole in the middle for passing through the reinforcing bar (101). The tool anchor (22) is fixed to the reinforcing bar (101), and the metal washer (23) is located below the tool anchor (22).