A concrete pressure grouting pile reinforcement cage positioning device
By introducing a combination of threaded sleeve, screw, and bubble level into the positioning device for reinforced concrete grouting piles, the problem of the positioning device being difficult to keep level in complex terrain is solved, achieving positioning accuracy and stability, and ensuring uniform stress on the pile body and the safety of the building structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ROAD & BRIDGE
- Filing Date
- 2025-05-28
- Publication Date
- 2026-07-07
AI Technical Summary
Existing concrete pressure grouting pile reinforcement cage positioning devices have difficulty maintaining the positioning frame horizontally when facing complex terrain and uneven pile hole locations, affecting the positioning accuracy and stability of the reinforcement cage, which may lead to uneven stress on the pile body and even threaten the safety of the building structure.
A device comprising a positioning frame, a threaded sleeve, a screw, and a bubble level was designed. The horizontal height of the positioning frame is adjusted by the cooperation of the threaded sleeve and the compression nut, and the bubble level is used to ensure that the positioning frame is level, adapting to the requirements of different terrains and pile hole positions.
The positioning frame was made horizontal in complex terrain and uneven pile hole locations, ensuring accurate and stable positioning of the rebar cage and improving the reliability and safety of construction.
Smart Images

Figure CN224468374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel cage positioning technology, specifically a steel cage positioning device for concrete pressure grouting piles. Background Technology
[0002] In the field of building construction, concrete pressure grouting piles are a common form of foundation construction, and their construction quality and efficiency are crucial to the stability of the entire building structure. The positioning of the reinforcing cage in concrete pressure grouting piles is a key step in the construction process. Accurate positioning of the reinforcing cage ensures the load-bearing performance of the pile and the reliability of the overall structure. Therefore, devices used for positioning the reinforcing cage in concrete pressure grouting piles play an important role in building construction.
[0003] However, existing concrete grouting pile reinforcement cage positioning devices often fail to achieve ideal positioning results when faced with different terrains and pile hole locations. Due to the complex and diverse terrain at construction sites, the concrete grouting pile opening may be uneven, and existing positioning devices lack an effective leveling adjustment mechanism. This makes it difficult to ensure the positioning frame is level when fixing the positioning device, thus affecting the accuracy and stability of the reinforcement cage positioning. Inaccurate positioning may lead to uneven stress on the pile, reducing its bearing capacity and even posing a potential threat to the safety of the entire building structure. These devices cannot flexibly adapt to different terrains and pile hole locations, failing to meet the reliability requirements of actual construction. Therefore, those skilled in the art have provided a concrete grouting pile reinforcement cage positioning device to solve the problems mentioned in the background art. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a positioning device for the reinforcing cage of a concrete pressure grouting pile, which solves the problem that it is difficult to ensure that the positioning frame is in a horizontal state when fixing the positioning device due to the complex and diverse terrain of the construction site and the uneven terrain at the opening of the concrete pressure grouting pile.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for a concrete pressure grouting pile reinforcement cage, comprising a positioning frame, a threaded sleeve rotatably engaged on the bottom side of the positioning frame, a first screw threadedly connected to the bottom end of the threaded sleeve, a positioning foot installed at the bottom end of the first screw, and a compression nut sleeved around the periphery of the first screw. A bubble level is installed on the upper surface of the positioning frame. After the positioning frame is fixedly inserted into the concrete pressure grouting pile opening via the positioning foot, the four sets of bubble levels on the positioning frame are observed. The horizontal height of the positioning frame is adjusted by rotating the threaded sleeve, and then the compression nut is rotated to compress the threaded sleeve, thereby fixing the adjusted height and ensuring that the bubbles in the four sets of bubble levels on the positioning frame are all centered, thus achieving a level positioning frame.
[0008] Preferably, the positioning frame includes two sets of L-shaped brackets, and a hinge is provided between the two sets of L-shaped brackets. The two sets of L-shaped brackets are rotatably hinged through the hinge, and the positioning frame is in the shape of a U-shape.
[0009] Preferably, the positioning frame has screw holes, and through holes are formed on both sides of the screw holes.
[0010] Preferably, a second screw is threaded into the screw hole, a limit rod is slidably sleeved in the through hole, a positioning plate is provided on the inner side of the positioning frame, the side of the positioning plate facing the inner wall of the positioning frame is rotatably engaged with the second screw, and the limit rod is fixedly connected to the positioning plate. When the second screw is rotated, the position of the positioning plate can be adjusted, so that the positioning plate in the positioning frame can position steel cages of different specifications.
[0011] Preferably, the positioning plate has a positioning groove on the side away from the second screw, which is used to guide and position the hoisted steel cage.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, this utility model provides a positioning device for the reinforcing cage of a concrete pressure grouting pile, which has the following beneficial effects:
[0014] Through design, the concrete pressure grouting pile reinforcement cage positioning device of this utility model includes a positioning frame. The bottom of the positioning frame is rotatably connected to a threaded sleeve with an internal threaded connection to a first screw. The bottom of the first screw is equipped with a positioning foot that can be inserted and fixed to the concrete pressure grouting pile hole. A compression nut is also provided. After the positioning frame is fixed, the horizontal height of the positioning frame can be adjusted by rotating the threaded sleeve and then rotating the compression nut to fix the height, so that the positioning frame can reach a horizontal state. Even if the terrain at the concrete pressure grouting pile hole is uneven, this structure can keep the positioning frame horizontal, which can well adapt to the requirements of different terrains and pile hole positions, ensure the accuracy and stability of positioning, flexibly adapt to the requirements of different terrains and pile hole positions, and provide a reliable guarantee for the positioning of concrete pressure grouting pile reinforcement cages. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of a concrete pressure grouting pile reinforcement cage positioning device provided in the embodiments of this application.
[0016] Figure 2 This is a partial structural cross-sectional view of the positioning frame in a concrete pressure grouting pile reinforcement cage positioning device provided in an embodiment of this application.
[0017] Figure 3 This is a schematic diagram of the structure of the second screw in a concrete pressure grouting pile reinforcement cage positioning device provided in an embodiment of this application.
[0018] In the diagram: 1. Positioning bracket; 101. Screw hole; 102. Through hole; 2. Hinge; 3. Threaded sleeve; 4. First screw; 5. Positioning foot; 6. Compression nut; 7. Bubble level; 8. Positioning plate; 801. Positioning groove; 802. Limiting rod; 9. Second screw. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] This utility model provides a technical solution: a positioning device for the reinforcing cage of a concrete pressure grouting pile. Please refer to [link / reference]. Figure 1 , Figure 2The system includes a positioning frame 1, which contains two sets of L-shaped supports. A hinge 2 is provided between the two sets of L-shaped supports, and the two sets of L-shaped supports are rotatably hinged through the hinge 2. The positioning frame 1 is U-shaped. A threaded sleeve 3 is rotatably engaged on the bottom side of the positioning frame 1. A first screw 4 is internally threaded to the bottom end of the threaded sleeve 3. A positioning foot 5 is installed at the bottom end of the first screw 4. A compression nut 6 is sleeved on the periphery of the first screw 4. A bubble level 7 is installed on the upper surface of the positioning frame 1. After the positioning frame 1 is fixedly inserted into the concrete grouting pile hole through the positioning foot 5, the four sets of bubble levels 7 on the positioning frame 1 are observed. The horizontal height of the positioning frame 1 is adjusted by rotating the threaded sleeve 3. Then, the compression nut 6 is rotated to compress the threaded sleeve 3, thereby fixing the adjusted height and ensuring that the bubbles in the four sets of bubble levels 7 on the positioning frame 1 are all in the center position, thus making the positioning frame 1 level.
[0021] Please see Figure 2 , Figure 3 The positioning frame 1 has a screw hole 101 and through holes 102 on both sides of the screw hole 101. A second screw 9 is threaded into the screw hole 101, and a limit rod 802 is slidably sleeved in the through hole 102. A positioning plate 8 is provided on the inner side of the positioning frame 1. The side of the positioning plate 8 facing the inner wall of the positioning frame 1 is rotatably engaged with the second screw 9. The limit rod 802 is fixedly connected to the positioning plate 8. When the second screw 9 is rotated, the position of the positioning plate 8 can be adjusted, so that the positioning plate 8 in the positioning frame 1 can position steel cages of different specifications. A positioning groove 801 is provided on the side of the positioning plate 8 away from the second screw 9 for guiding and positioning the hoisted steel cage.
[0022] The concrete pressure grouting pile reinforcement cage positioning device in this utility model consists of a positioning frame 1 and an adjustable positioning foot 5. The positioning frame 1 is composed of two sets of L-shaped plates hinged together by a hinge 2, and the positioning frame 1 is U-shaped. A threaded sleeve 3 is rotatably connected to the bottom side of the positioning frame 1. A first screw 4 is threaded inside the threaded sleeve 3. The positioning foot 5 is installed at the bottom of the first screw 4 and can be inserted and fixed to the concrete pressure grouting pile hole. A compression nut 6 is provided on the threaded sleeve 3 on the first screw 4.
[0023] After the positioning frame 1 is fixedly inserted into the concrete grouting pile hole through the positioning foot 5, observe the four sets of bubble levels 7 on the positioning frame 1. Adjust the horizontal height of the positioning frame 1 by rotating the threaded sleeve 3. Then, squeeze the threaded sleeve 3 by rotating the compression nut 6 to fix the adjusted height, so that the bubbles in the four sets of bubble levels 7 on the positioning frame 1 are all in the center position, thus making the positioning frame 1 horizontal. When the terrain at the concrete grouting pile hole is uneven, this structure can keep the positioning support horizontal and adapt to the requirements of different terrains and pile hole positions.
[0024] A screw hole 101 is provided inside the positioning frame 1, and through holes 102 are provided on both sides of the screw hole 101. A positioning plate 8 is provided inside the positioning frame 1. A positioning groove 801 is provided on the side of the positioning plate 8 facing the concrete pressure grouting pile opening, which is used to guide and position the hoisted steel cage. A second screw 9 is rotatably engaged at the end of the positioning plate 8 facing the screw hole 101, and limit rods 802 are provided on both sides of the second screw 9. The limit rods 802 are fixedly connected to the positioning plate 8 and are slidably inserted into the positioning frame 1 through the through hole 102. The second screw 9 is threaded into the screw hole 101. When the second screw 9 is rotated, the position of the positioning plate 8 can be adjusted, so that the positioning plate 8 in the positioning frame 1 can position and guide steel cages of different specifications.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A positioning device for a concrete pressure grouting pile reinforcement cage, comprising a positioning frame (1), characterized in that: The bottom side of the positioning frame (1) is rotatably engaged with a threaded sleeve (3), the bottom end of the threaded sleeve (3) is internally threaded with a first screw (4), the bottom end of the first screw (4) is equipped with a positioning foot (5), the periphery of the first screw (4) is sleeved with a compression nut (6), and the upper surface of the positioning frame (1) is equipped with a bubble level (7).
2. The concrete pressure grouting pile reinforcement cage positioning device according to claim 1, characterized in that: The positioning frame (1) includes two sets of L-shaped brackets, and a hinge (2) is provided between the two sets of L-shaped brackets. The two sets of L-shaped brackets are rotatably hinged through the hinge (2), and the positioning frame (1) is in the shape of a U-shape.
3. The concrete pressure grouting pile reinforcement cage positioning device according to claim 1, characterized in that: The positioning frame (1) has a screw hole (101) and through holes (102) on both sides of the screw hole (101).
4. The concrete pressure grouting pile reinforcement cage positioning device according to claim 3, characterized in that: The screw hole (101) is threaded with a second screw (9), and the through hole (102) is slidably fitted with a limit rod (802).
5. A concrete pressure grouting pile reinforcement cage positioning device according to claim 4, characterized in that: The positioning frame (1) is provided with a positioning plate (8) on its inner side. The side of the positioning plate (8) facing the inner wall of the positioning frame (1) is rotated and engaged with the second screw (9). The limiting rod (802) is fixedly connected to the positioning plate (8).
6. The concrete pressure grouting pile reinforcement cage positioning device according to claim 5, characterized in that: The positioning plate (8) has a positioning groove (801) on the side away from the second screw (9).