Large-span beam-column joint core area reinforcing steel bar high-precision positioner

By using a high-precision rebar locator in the core area of ​​a large-span beam-column joint, multiple rebars can be positioned using adjustable hoop spacing and telescopic rods. Combined with the casting formwork, this solves the problems of low efficiency and complex installation of traditional rebar positioning, thereby improving construction efficiency and structural safety.

CN224149015UActive Publication Date: 2026-04-21CHINA RAILWAY NO 3 GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY NO 3 GRP CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional methods of rebar positioning are inefficient, costly in terms of materials, complex to install, prone to errors, and can affect project progress and structural safety.

Method used

A high-precision rebar positioner is used in the core area of ​​large-span beam-column joints. It includes a positioning plate, locking groove, limiting seat and hoop. Multiple rebars are positioned by adjusting the hoop spacing and telescopic rod, and the positioning stability is ensured by combining with the casting formwork.

Benefits of technology

It improves positioning efficiency, reduces material and installation complexity, ensures the accuracy of the position of steel bars during the pouring process, reduces structural safety hazards, and improves construction progress and structural reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel bar positioning, and discloses a large-span beam column joint core area steel bar high-precision positioner which comprises a positioning plate, a plurality of locking grooves are formed in the upper surface of the positioning plate, and first limiting seats are fixedly installed in the locking grooves. The telescopic rod on the surface of the second hoop frame slides in the inner sliding groove of the first hoop frame through the extending sliding block, so that spacing adjustment is achieved, a plurality of steel bars can be positioned at a time, workpieces needed by traditional steel bar fixing are effectively reduced, the material cost and the installation complexity are reduced, the time cost needed by positioning is reduced, and the machining efficiency is improved. The connection of the pouring template and the positioning plate ensures the stability of the steel bar positioning structure in the pouring process, prevents the displacement of the steel bars under the action of external force such as pouring pressure, avoids the structural defects of the beam-column joint possibly caused by the displacement of the steel bars in the concrete pouring process, and improves the safety and reliability of the structure.
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Description

Technical Field

[0001] This utility model relates to the field of rebar positioning technology, and in particular to a high-precision rebar positioner for the core area of ​​a large-span beam-column joint. Background Technology

[0002] Reinforcing steel is an indispensable reinforcing material in beam-column joints. It plays a role in bearing tensile forces in concrete structures and can effectively improve the load-bearing capacity and crack resistance of concrete members. In the core area of ​​beam-column joints, the reasonable arrangement and accurate positioning of reinforcing steel are particularly important because the reinforcing steel here is subjected to complex forces and needs to bear the load transfer from both beam and column directions. Accurate positioning of reinforcing steel can ensure that the reinforcing steel can fully exert its mechanical properties during the stress process, thereby ensuring the structural safety of beam-column joints.

[0003] Traditional rebar positioning methods often rely on tying clips. However, this method is extremely inefficient when there are many rebars in the core area of ​​large-span beam-column joints. It requires a large number of tying clips to ensure the position of the rebars. These tying clips not only increase material costs, but also increase the complexity and difficulty of construction due to the large number of parts and the complex installation sequence. As a result, construction workers have to spend a lot of time on rebar positioning, which affects the progress of the entire project. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-precision rebar positioner for the core area of ​​large-span beam-column joints.

[0005] This utility model is achieved using the following technical solution: a high-precision rebar positioner for the core area of ​​a large-span beam-column joint, comprising a positioning plate, the upper surface of which is provided with several locking grooves, a limiting seat one fixedly installed inside the locking groove, a limiting seat two fixedly installed inside the locking groove, a hoop one fixedly installed on the surface of the limiting seat one, a hoop two fixedly installed on the surface of the limiting seat two, an inner sliding groove provided on the inner wall of the hoop one, an extension slider slidably connected to the inner wall of the inner sliding groove, a telescopic rod fixedly connected to the surface of the extension slider, and rebar bodies provided inside the hoop one and hoop two.

[0006] The above technical solution enables multiple steel bars to be positioned at once by adjusting the spacing of the stirrups, which improves positioning efficiency, effectively reduces the number of workpieces required for traditional steel bar fixing, and lowers material costs and installation complexity.

[0007] As a further improvement to the above solution, the telescopic rod is fixedly connected to the surface of the second hoop.

[0008] The above technical solution enhances the stability of the second hoop during movement, making the spacing adjustment more precise and thus improving the accuracy of rebar positioning.

[0009] As a further improvement to the above solution, a casting template is fixedly connected to the surface of the positioning plate.

[0010] The above technical solution ensures the stability of the steel reinforcement positioning structure during the pouring process by connecting the pouring template and the positioning plate, preventing the steel reinforcement from shifting under external forces such as pouring pressure.

[0011] As a further improvement to the above scheme, the steel bar body is in contact with the casting formwork.

[0012] The above technical solutions ensure the accuracy of the position of the reinforcing bars during the pouring process, improve the pouring quality of beam-column joints, and reduce structural safety hazards caused by reinforcing bar displacement.

[0013] As a further improvement to the above solution, the two sides of the positioning plate are respectively connected to the limiting seat one and the limiting seat two by hexagonal bolt one.

[0014] The above technical solution ensures that the first and second limit seats will not be displaced relative to the positioning plate during operation, thereby guaranteeing the accuracy of the rebar positioning.

[0015] As a further improvement to the above scheme, the surfaces of the limiting seat one and the limiting seat two are respectively connected to the hoop one and the hoop two by hexagonal bolt two.

[0016] The above technical solutions enhance the stability of the connection between hoop one and hoop two and limit seat one and limit seat two, ensuring the reliability of the rebar positioning structure during operation.

[0017] As a further improvement to the above solution, both hexagonal bolt one and hexagonal bolt two penetrate the locking groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model utilizes an adjustable structure between hoop one and hoop two. The telescopic rod on the surface of hoop two slides in the inner groove of hoop one via an extension slider, thereby achieving spacing adjustment. This allows for the positioning of multiple reinforcing bars at once, effectively reducing the number of workpieces required for traditional reinforcing bar fixing, lowering material costs and installation complexity, and reducing the time cost required for positioning. The connection between the casting template and the positioning plate ensures the stability of the reinforcing bar positioning structure during the casting process, preventing the reinforcing bars from shifting under external forces such as casting pressure. This avoids structural defects in beam-column joints that may result from reinforcing bar displacement during concrete casting, thus improving the safety and reliability of the structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the casting template of this utility model;

[0022] Figure 3 This is a structural schematic diagram of the hexagonal bolt of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the limiting seat of this utility model;

[0024] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0025] Explanation of key symbols:

[0026] 1. Positioning plate; 2. Locking groove; 3. Limiting seat one; 4. Limiting seat two; 5. Hoop one; 6. Hoop two; 7. Inner sliding groove; 8. Extension slider; 9. Telescopic rod; 10. Reinforcing bar body; 11. Casting formwork; 12. Hex bolt one; 13. Hex bolt two. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-5The high-precision rebar locator for the core area of ​​a large-span beam-column joint in this embodiment includes a positioning plate 1. The upper surface of the positioning plate 1 has several locking grooves 2. A first limiting seat 3 and a second limiting seat 4 are fixedly installed inside the locking grooves 2. A first clamp 5 is fixedly installed on the surface of the first limiting seat 3, and a second clamp 6 is fixedly installed on the surface of the second limiting seat 4. An inner sliding groove 7 is formed on the inner wall of the first clamp 5. An extension slider 8 is slidably connected to the inner wall of the inner sliding groove 7. A telescopic rod 9 is fixedly connected to the surface of the extension slider 8. Rebar bodies 10 are disposed inside the first clamp 5 and the second clamp 6. First, the spacing between the first clamp 5 and the second clamp 6 is adjusted according to the number of rebars to be positioned using the adjustable structure between them. The telescopic rod 9 on the surface of the second clamp 6 moves within the inner sliding groove 7 of the first clamp 5 via the extension slider 8. This sliding connection allows the spacing to be flexibly changed to adapt to the positioning requirements of different numbers of rebars. Then, the adjusted spacing of the first clamp 5 and the second clamp 6 is passed around the rebar body 10. Next, select the corresponding locking groove 2 on the surface of the positioning plate 1, install hoop 5 and hoop 6 on the positioning plate 1, and insert them into the limiting seat 3 and limiting seat 4, and then fix them with hexagonal bolts and other connecting parts. Through this series of operations, the positions of limiting seat 3, limiting seat 4, hoop 5 and hoop 6 are fixed, thereby realizing the positioning of the steel bar body 10.

[0030] The telescopic rod 9 is fixedly connected to the surface of the second hoop 6. Since the telescopic rod 9 is fixedly connected to the surface of the second hoop 6, when the second hoop 6 needs to be moved to adjust the distance with the first hoop 5, the telescopic rod 9 will slide in the inner groove 7 of the first hoop 5 as the second hoop 6 moves, thereby ensuring the stability and directionality of the movement of the second hoop 6.

[0031] The surface of the positioning plate 1 is fixedly connected to the casting template 11. After the reinforcement is positioned, the casting template 11 and the positioning plate 1 form an integral structure. When concrete is poured, this integral structure can provide a stable positioning environment for the reinforcement.

[0032] The reinforcing bar body 10 is in contact with the casting formwork 11, which serves to prevent the reinforcing bar body 10 from moving. Since the casting formwork 11 is connected to the positioning plate 1 and other structures, it restricts the range of motion of the reinforcing bar body 10, ensuring that it will not leave the formwork area during casting.

[0033] The two sides of the positioning plate 1 are connected to the limiting seat 3 and the limiting seat 4 respectively by hexagonal bolts 1-12. The hexagonal bolts 1-12 pass through the locking groove 2. When the hexagonal bolts 1-12 are tightened, the limiting seat 3 and the limiting seat 4 can be firmly fixed on the positioning plate 1, thereby ensuring the firmness of the connection between the limiting seat and the positioning plate.

[0034] The surfaces of limit seat 1 3 and limit seat 2 4 are respectively connected to hoop 1 5 and hoop 2 6 by hexagonal bolt 2 13. When the hexagonal bolt 2 13 is tightened, hoop 1 5 and hoop 2 6 can be firmly fixed on limit seat 1 3 and limit seat 2 4, so that a stable connection structure is formed between the hoop and the limit seat.

[0035] Both hex bolt 12 and hex bolt 23 penetrate the locking groove 2.

[0036] The implementation principle of the high-precision rebar locator in the core area of ​​the large-span beam-column joint in this embodiment is as follows: First, based on the number of rebars to be located, the operator adjusts the distance between hoop one 5 and hoop two 6. Since the telescopic rod 9 on the surface of hoop two 6 is slidably connected to the inner groove 7 on the inner wall of hoop one 5 via the extension slider 8, the operator manually stretches hoop two 6, causing the telescopic rod 9 to move within the inner groove 7 of hoop one 5. During this movement, it is crucial to ensure that the distance between hoop one 5 and hoop two 6 is sufficient to locate all the rebars that need to be located at once; it cannot be too large, resulting in insecure rebar positioning, nor too small, preventing the placement of all rebars. After the distance between hoop one 5 and hoop two 6 is adjusted, the operator moves hoop one 5 and hoop two 6 around the rebar body 10. Then, the operator selects the corresponding locking groove 2 on the surface of the positioning plate 1. To ensure that hoop 1 5 and hoop 2 6 can be smoothly installed on positioning plate 1, insert hoop 1 5 and hoop 2 6 into the corresponding limiting seats 1 3 and 2 4. Then, use hex bolt 1 12 to connect both sides of positioning plate 1 to limiting seats 1 3 and 2 4 respectively. Next, use hex bolt 2 13 to connect the surfaces of limiting seats 1 3 and 2 4 to hoop 1 5 and hoop 2 6 respectively. Hex bolt 2 13 should also penetrate the locking groove 2. When tightening hex bolt 2 13, ensure that hoop 1 5 and hoop 2 6 are firmly fixed on limiting seats 1 3 and 2 4, so that a stable connection structure is formed between the hoop and the limiting seats. The casting template 11 serves to block the steel bar body 10. Since the casting template 11 is connected to the positioning plate 1 and other structures, it restricts the range of motion of the steel bar body 10, ensuring that it will not leave the template area during casting.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-precision rebar positioner for a long-span beam-column joint core area, characterized in that, The system includes a positioning plate (1), the upper surface of which is provided with a plurality of locking grooves (2), a limiting seat one (3) is fixedly installed inside the locking groove (2), a limiting seat two (4) is fixedly installed inside the locking groove (2), a hoop one (5) is fixedly installed on the surface of the limiting seat one (3), a hoop two (6) is fixedly installed on the surface of the limiting seat two (4), an inner sliding groove (7) is provided on the inner wall of the hoop one (5), an extension slider (8) is slidably connected to the inner wall of the inner sliding groove (7), a telescopic rod (9) is fixedly connected to the surface of the extension slider (8), and a steel bar body (10) is provided inside the hoop one (5) and the hoop two (6).

2. The high-precision rebar positioning device for the core area of ​​a large-span beam-column joint as described in claim 1, characterized in that: The telescopic rod (9) is fixedly connected to the surface of the hoop (6).

3. The high-precision rebar positioner for long-span beam-column joint core area as claimed in claim 1, characterized in that: The surface of the positioning plate (1) is fixedly connected to the casting template (11).

4. The high-precision rebar positioner for long-span beam-column joint core area as claimed in claim 1, characterized in that: The steel bar body (10) is in contact with the casting template (11).

5. The high-precision rebar positioner for long-span beam-column joint core area as claimed in claim 1, characterized in that: The two sides of the positioning plate (1) are connected to the limiting seat (3) and the limiting seat (4) respectively by hexagonal bolts (12).

6. The high-precision rebar positioner for long-span beam-column joint core area as claimed in claim 1, characterized in that: The surfaces of the limiting seat one (3) and the limiting seat two (4) are respectively connected to the hoop one (5) and the hoop two (6) by hexagonal bolt two (13).

7. The high-precision rebar positioner for long-span beam-column joint core area as claimed in claim 5, characterized in that: Both hexagonal bolt one (12) and hexagonal bolt two (13) penetrate the locking groove (2).