A pile foundation reinforcement cage protection layer tool

Abstract

The utility model discloses a pile foundation reinforcement cage protective layer instrument, include: first fixed link, it is used for fixing on reinforcement cage, second fixed link, second fixed link is opposite setting with first fixed link, and second fixed link is fixed on the reinforcement cage below first fixed link, support subassembly, both ends of support subassembly are rotatably connected between first fixed link and second fixed link, for adjusting reinforcement cage protective layer thickness, adjusting ruler, one end of adjusting ruler is fixedly connected with first fixed link, and the other end is slidably attached to the outside of second fixed link. The utility model simple structure, stable and reliable, can effectively solve the problem of the insufficient protective layer of reinforcement cage in the construction process, and ensure the quality and stability of pile foundation, and strong adaptability simultaneously, applicable to different pile foundation engineering, make the construction process more efficient, accurate, thereby improve construction efficiency and precision.

Description

Technical Field

[0001] This utility model relates to a protective layer tool, specifically a protective layer tool for pile foundation steel cages, belonging to the field of building construction technology. Background Technology

[0002] With the rapid development of the construction industry and the increasing height of building projects, cast-in-place concrete piles in pile foundation raft foundations are becoming longer and longer. While this trend improves the stability of buildings, it also brings some challenges to pile foundation construction. In particular, during construction, the pile foundation reinforcement cage, due to its long and slender structure, has low lateral stiffness and is prone to deformation. This makes it difficult to control the protective layer of the reinforcement cage, and the thickness of the protective layer may be insufficient, affecting the stability and bearing capacity of the pile foundation.

[0003] Traditional methods of using retaining rings for concrete cover often involve detachment and deformation during the hoisting of the reinforcing cage, resulting in inconsistent cover sizes and difficulty in quality control. Furthermore, to enhance the lateral stiffness of the reinforcing cage, stiffening stirrups are typically welded to the main reinforcement bars, thereby improving stability. However, due to the considerable length of pile foundation reinforcing cages, even with the increased lateral stiffness from the stiffening stirrups, inaccurate control of the concrete cover remains, particularly during concrete pouring, where maintaining consistent cover thickness is challenging.

[0004] A search revealed that Chinese utility model patent CN203924039U discloses a control structure for the protective layer of a cast-in-place pile reinforcement cage. This structure includes a reinforcement cage with reinforcing hoops and spiral hoops welded onto it. Multiple sets of protective rings are spaced vertically on the main reinforcement bars of the cage. Each set contains four protective rings evenly distributed along the same circumference of the reinforcement cage, with adjacent sets staggered. Each protective ring is handle-shaped, and its two ends are welded to the main reinforcement bars along the direction of the main reinforcement bars. The bending height of the protective rings is controlled to the thickness of the pile reinforcement protective layer. However, this control structure uses a fixed design for the protective rings, making adjustment impossible and limiting its application range. It lacks flexibility for situations requiring frequent adjustments or adaptation to different environmental conditions.

[0005] Therefore, developing a practical, reliable, and flexible tool for protecting the concrete cover of pile foundation reinforcement cages is the key to solving the above-mentioned technical problems. Summary of the Invention

[0006] In view of the many defects and deficiencies existing in the above-mentioned background technology, this utility model has made improvements and innovations, with the aim of providing a simple, stable and reliable pile foundation reinforcement cage protective layer tool, which effectively solves the problem of insufficient protective layer in the reinforcement cage during construction, and ensures the quality and stability of the pile foundation, thereby improving construction efficiency and accuracy.

[0007] Another objective of this invention is its strong adaptability, making it suitable for different pile foundation projects, thus making the construction process more efficient and precise, thereby accelerating the overall project progress.

[0008] To solve the above problems and achieve the above-mentioned invention objectives, this utility model provides a pile foundation reinforcement cage protective layer tool by adopting the following design structure and the following technical solution:

[0009] A tool for protecting the concrete cover of a pile foundation reinforcement cage, comprising:

[0010] The first fixing rod is used to fix it to the steel cage;

[0011] The second fixing rod is arranged opposite to the first fixing rod and is fixed to the steel cage below the first fixing rod;

[0012] The support assembly has two ends rotatably connected between the first fixed rod and the second fixed rod, and is used to adjust the thickness of the protective layer of the steel cage.

[0013] The adjusting rod has one end fixedly connected to the first fixed rod, and the other end slidingly against the outside of the second fixed rod.

[0014] Preferably, the support component includes:

[0015] Support rod, used to connect and abut against the inner wall of the pile hole;

[0016] The first connector has one end rotatably connected to one end of the support rod and the other end rotatably connected to the first fixed rod.

[0017] The second connector has one end rotatably connected to the other end of the support rod and the other end rotatably connected to the second fixed rod.

[0018] Preferably, the two ends of the first connector are fixedly connected to the support rod and the first fixing rod respectively by hinges.

[0019] Preferably, the first connector consists of at least one connecting rod, wherein the connecting rod is generally in the form of a columnar structure.

[0020] Preferably, the second connector has the same structure as the first connector, and the number of connecting rods formed is also the same.

[0021] Preferably, the second connector has the same structure as the first connector, but the number of connecting rods is different.

[0022] Preferably, both the first fixing rod and the second fixing rod are circular cylindrical structures.

[0023] Preferably, the adjusting rod is an elongated arc-shaped structure, with graduations on its outer side along its length, and the non-fixed end of the adjusting rod is arc-shaped.

[0024] Preferably, the inner diameter of the adjusting rod is adapted to the first fixed rod and the second fixed rod, wherein the diameter of the support assembly is slightly smaller than the inner diameter of the adjusting rod.

[0025] Preferably, a rust-proof layer is provided on the outside of the first fixing rod, the second fixing rod, the support assembly, and the adjusting rod.

[0026] The working principle is as follows: Before using the above-mentioned pile foundation reinforcement cage protective layer tool, it needs to be made and installed as a backup.

[0027] Before use, the construction personnel transported the pre-made protective layer tools to the steel cage (7) processing site. Then, the operators adjusted and fixed each protective layer tool according to the processing requirements of the protective layer thickness of the steel cage.

[0028] During adjustment, the operator pulls the support rod (31) away from the first fixed rod (1) to adjust the support assembly (3). Simultaneously, the second fixed rod (2) moves closer to the first fixed rod (1) along the adjusting rod (4). Then, as... Figure 8 As shown, the operator adjusts the protective layer thickness of the steel cage according to the thickness of the protective layer. The height H between the bottom of the second fixed rod (2) and the top of the support rod (31) is measured by an external measuring ruler so that the height H conforms to the thickness of the protective layer of the steel cage. After the thickness of the protective layer of the steel cage is determined, the operator welds the non-fixed end of the adjusting ruler rod (4) to the second fixed rod (2) by spot welding, thus completing the adjustment and fixing of the protective layer tool.

[0029] When processing the subsequent protective layer tool, the adjustment work can be quickly achieved by aligning the specified scale on the already processed adjustment rod (4) with the inner end of the second fixing rod (2). Then, the adjustment rod (4) can be welded to complete the adjustment and fixing work.

[0030] During installation, this utility model is welded to the vertical main bar of the steel cage (5), and a ring is formed at the same height to form a circular arrangement, with at least three bars arranged at equal intervals in one ring.

[0031] Among them, a protective layer tool is arranged at the top elevation of the pile hole (6) and 40 cm above the bottom of the pile, and a ring of steel reinforcement cage (5) is arranged along the pile length for 2 meters.

[0032] Finally, after the protective layer tools on the steel cage (5) are welded, apply anti-rust paint to complete the installation of the protective layer tools.

[0033] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0034] 1. This utility model has a simple, stable and reliable structure. It adopts a concise structural design, which is easy to install and operate. Compared with traditional complex equipment, it reduces maintenance costs and construction difficulty, and improves the convenience and safety of construction.

[0035] 2. This utility model can effectively solve the problem of insufficient protective layer of steel cage. Through the innovative design of this tool, the thickness of the protective layer of steel cage can be effectively controlled during construction, ensuring the integrity of the protective layer of steel cage and avoiding quality problems caused by uneven protective layer in traditional construction methods.

[0036] 3. This utility model can ensure the quality and stability of the pile foundation. This tool can ensure the accurate positioning of the main reinforcement of the steel cage, so that the steel cage can stably maintain its structural position during the concrete pouring process. By precisely controlling the thickness of the protective layer of the steel cage, the overall quality and stability of the pile foundation are effectively improved, ensuring that the concrete pouring is more uniform and enhancing the bearing capacity of the pile foundation.

[0037] 4. This utility model can more accurately control the thickness of the protective layer of the reinforcing cage, making it consistent throughout the entire pile body; it not only improves construction accuracy, but also reduces structural strength instability caused by uneven thickness, ensuring the long-term performance of the pile foundation.

[0038] 5. This utility model can improve the positioning accuracy of the steel cage during construction, reduce human operation errors, and reduce the rework rate caused by improper control of the protective layer, making the construction process more efficient and precise, thereby accelerating the progress of the entire project and improving construction efficiency and accuracy.

[0039] 6. This utility model has strong adaptability and can be widely used in different types of pile foundation projects. In particular, it is especially outstanding in the construction of high-rise buildings or deep foundations for cast-in-place piles with long and thin steel cages. It can provide reliable protective layer control for both foundation piles and deep foundation pit piles.

[0040] 7. This utility model is highly flexible. By adjusting the ruler and the support components, the thickness of the protective layer of the steel cage can be adjusted, which can flexibly adapt to different construction needs and ensure that the protective layer of the steel cage meets the specific structural or environmental requirements. Attached Figure Description

[0041] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0042] Figure 1 This is one of the usage state diagrams of this utility model;

[0043] Figure 2 This is the second diagram showing the usage state of this utility model;

[0044] Figure 3 This is the third diagram showing the usage state of this utility model;

[0045] Figure 4 This is one of the working principle diagrams of this utility model;

[0046] Figure 5 This is the second working principle diagram of this utility model;

[0047] Figure 6 This is the third working principle diagram of this utility model;

[0048] Figure 7 This is a schematic diagram of the overall structure of this utility model;

[0049] Figure 8 This is one of the schematic diagrams showing the partial connection relationships of this utility model;

[0050] Figure 9 This is the second schematic diagram of the partial connection relationship of this utility model;

[0051] Figure 10 This is the third schematic diagram of the partial connection relationship of this utility model;

[0052] Figure 11 This is a schematic diagram of the adjusting ruler component of this utility model;

[0053] In the diagram, number 1 represents the first fixed rod.

[0054] 2—Second fixing rod;

[0055] 3—Support assembly, 31—Support rod, 32—First connector, 33—Second connector;

[0056] 4—Adjusting ruler;

[0057] 5—Reinforcing cage;

[0058] 6—Pile hole. Detailed Implementation

[0059] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0060] As per the instruction manual Figures 1 to 11 As shown, a tool for protecting the concrete cover of a pile foundation reinforcement cage includes:

[0061] The first fixing rod 1 is used to fix it to the steel cage 5;

[0062] The second fixing rod 2 is arranged opposite to the first fixing rod 1, and the second fixing rod 2 is fixed to the steel cage 5 below the first fixing rod 1;

[0063] Support component 3, with its two ends rotatably connected between the first fixed rod 1 and the second fixed rod 2, is used to adjust the thickness of the protective layer of the reinforcing cage;

[0064] Adjusting rod 4, one end of which is fixedly connected to the first fixed rod 1, and the other end is slidably attached to the outside of the second fixed rod 2.

[0065] Furthermore, the support component 3 includes:

[0066] Support rod 31, which is used to abut against the inner wall of pile hole 6;

[0067] The first connector 32 has one end rotatably connected to one end of the support rod 31 and the other end rotatably connected to the first fixed rod 1.

[0068] The second connector 33 has one end rotatably connected to the other end of the support rod 31 and the other end rotatably connected to the second fixed rod 2.

[0069] Specifically, the two ends of the first connector 32 are fixedly connected to the support rod 31 and the first fixing rod 1 respectively through hinges.

[0070] Specifically, the first connector 32 consists of at least one connecting rod, wherein the connecting rod is in the form of a columnar structure.

[0071] Furthermore, the second connector 33 has the same structure as the first connector 32, and the number of connecting rods formed is also the same.

[0072] like Figure 7As shown, the first connector 32 consists of a connecting rod, the two ends of which are fixedly connected to the support rod 31 and the first fixing rod 1 through single hinge seats. The second connector 33 has the same structure and the same number of connecting rods as the first connector 32.

[0073] like Figure 10 As shown, the first connector 32 consists of two connecting rods. The two ends of the two connecting rods are fixedly connected to the support rod 31 and the first fixing rod 1 through double hinge seats. The second connector 33 has the same structure and the same number of connecting rods as the first connector 32.

[0074] Furthermore, the second connector 33 has the same structure as the first connector 32, but the number of connecting rods formed is different.

[0075] like Figure 8 As shown, the first connecting member 32 consists of a connecting rod, the two ends of which are fixedly connected to the support rod 31 and the first fixed rod 1 through a single hinge seat. However, the second connecting member 33 consists of two connecting rods, the two ends of which are fixedly connected to the support rod 31 and the second fixed rod 2 through a double hinge seat.

[0076] like Figure 9 As shown, the first connector 32 consists of two connecting rods, the two ends of which are fixedly connected to the support rod 31 and the first fixed rod 1 through double hinge seats. The second connector 33 consists of one connecting rod, the two ends of which are fixedly connected to the support rod 31 and the second fixed rod 2 through single hinge seats.

[0077] Furthermore, both the first fixing rod 1 and the second fixing rod 2 are circular cylindrical structures.

[0078] Furthermore, the adjusting rod 4 has an overall elongated arc-shaped structure, and the outer side of the adjusting rod 4 is provided with scales along its length. The non-fixed end of the adjusting rod 4 is arc-shaped.

[0079] Specifically, the inner diameter of the adjusting rod 4 is adapted to the first fixed rod 1 and the second fixed rod 2, wherein the diameter of the support assembly 3 is slightly smaller than the inner diameter of the adjusting rod 4.

[0080] In this invention, the precise fit between the inner diameter of the adjusting rod 4 and the first fixed rod 1 ensures that one end of the adjusting rod 4 fits tightly against the first fixed rod 1, guaranteeing a secure connection during welding and enhancing the stability and safety of the connection. Furthermore, the other end of the adjusting rod 4 engages with the second fixed rod 2, allowing the second fixed rod 2 to slide smoothly on the inner wall of the adjusting rod 4. After position adjustment via the support assembly 3, workers can precisely align the adjusting rod 4 with the second fixed rod 2 for efficient welding. This design provides significant adjustment flexibility, ensuring the precise position of the fixing components throughout the welding process, avoiding errors caused by improper adjustment, and thus improving welding quality and the overall stability of the structure.

[0081] This design not only improves connection stability but also significantly enhances operational flexibility. The precise fit between the adjusting rod 4 and the fixed rod 1 ensures stability during welding, while the sliding design between the adjusting rod 4 and the second fixed rod 2 provides a high degree of adjustment freedom.

[0082] The diameter of the support component 3 is slightly smaller than the inner diameter of the adjusting rod 4. This design allows the support component 3 to be easily pulled out and adjusted from the adjusting rod 4. This design provides a certain amount of space between the support component 3 and the adjusting rod 4, facilitating position adjustment according to specific construction needs and ensuring the flexibility of the support component during use. With the assistance of the support component 3, construction workers can easily adjust and fix the position of each component while ensuring accuracy, ensuring efficient completion of welding work and improving construction quality and the stability of the overall structure.

[0083] Furthermore, a rust-proof layer is provided on the outside of the first fixing rod 1, the second fixing rod 2, the support assembly 3, and the adjusting rod 4.

[0084] In summary, before using the above-mentioned pile foundation reinforcement cage protective layer tool, it is necessary to manufacture and install it as a backup.

[0085] Before use, the construction workers transported the pre-made protective layer tools to the steel cage processing site. Then, the operators adjusted and fixed each protective layer tool according to the processing requirements of the protective layer thickness of the steel cage.

[0086] During adjustment, the operator pulls the support rod 31 away from the first fixed rod 1 to adjust the support assembly 3. Simultaneously, the second fixed rod 2 moves closer to the first fixed rod 1 along the adjusting rod 4. Then, as... Figure 8As shown, the operator adjusts the protective layer according to the thickness of the reinforcing cage. The height H between the bottom of the second fixed rod 2 and the top of the support rod 31 is measured by an external measuring ruler to ensure that the height H matches the thickness of the protective layer of the reinforcing cage. After the thickness of the protective layer of the reinforcing cage is determined, the operator welds the non-fixed end of the adjusting ruler rod 4 to the second fixed rod 2 by spot welding, thus completing the adjustment and fixing of the protective layer tool.

[0087] When processing the subsequent protective layer tool, simply align the specified scale on the pre-processed adjusting rod 4 with the inner end of the second fixing rod 2 to quickly achieve the adjustment work. Then, weld the adjusting rod 4 to complete the adjustment and fixing work.

[0088] During installation, this utility model is welded to the vertical main bars of the steel cage 5, and a ring is formed at the same height to form a circular arrangement, with at least three bars arranged at equal intervals in the ring.

[0089] Among them, a protective layer tool is arranged at the top elevation of the pile hole 6 and 40 cm above the bottom of the pile, and a ring of the remaining steel cage 5 is arranged along the pile length of 2 meters.

[0090] Finally, after the protective layer tools on the rebar cage 5 are welded, apply anti-rust paint to complete the installation of the protective layer tools.

[0091] In summary, the pile foundation reinforcement cage protective layer tool designed in this paper effectively solves common problems in the construction process, such as insufficient reinforcement cage protective layer and inaccurate positioning, bringing a more efficient, accurate and stable solution to pile foundation construction and improving building quality.

[0092] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A tool for protecting the concrete cover of a pile foundation reinforcement cage, characterized in that: include: The first fixing rod (1) is used to fix it to the steel cage (5); The second fixing rod (2) is arranged opposite to the first fixing rod (1), and the second fixing rod (2) is fixed on the steel cage (5) below the first fixing rod (1); Support component (3), the two ends of the support component (3) are rotatably connected between the first fixed rod (1) and the second fixed rod (2) for adjusting the thickness of the protective layer of the steel cage; Adjust the ruler rod (4). One end of the adjusting ruler rod (4) is fixedly connected to the first fixed rod (1), and the other end slides against the outside of the second fixed rod (2).

2. The pile foundation reinforcement cage protective layer tool according to claim 1, characterized in that: The support component (3) includes: Support rod (31), support rod (31) is used to abut against the inner wall of the pile hole (6); The first connector (32) has one end rotatably connected to one end of the support rod (31) and the other end rotatably connected to the first fixed rod (1); The second connector (33) has one end rotatably connected to the other end of the support rod (31) and the other end rotatably connected to the second fixed rod (2).

3. The pile foundation reinforcement cage protective layer tool according to claim 2, characterized in that: The two ends of the first connector (32) are fixedly connected to the support rod (31) and the first fixing rod (1) respectively through hinges.

4. The pile foundation reinforcement cage protective layer tool according to claim 3, characterized in that: The first connector (32) consists of at least one connecting rod, wherein the connecting rod is in the form of a columnar structure.

5. The pile foundation reinforcement cage protective layer tool according to claim 2 or 4, characterized in that: The second connector (33) has the same structure as the first connector (32), and the number of connecting rods is also the same.

6. The pile foundation reinforcement cage protective layer tool according to claim 2 or 4, characterized in that: The second connector (33) has the same structure as the first connector (32), but the number of connecting rods is different.

7. The pile foundation reinforcement cage protective layer tool according to claim 1, characterized in that: Both the first fixing rod (1) and the second fixing rod (2) are circular columnar structures.

8. The pile foundation reinforcement cage protective layer tool according to claim 1, characterized in that: The adjusting rod (4) has an overall long arc-shaped structure. The outer side of the adjusting rod (4) is marked with scales along its length. The non-fixed end of the adjusting rod (4) is arc-shaped.

9. The pile foundation reinforcement cage protective layer tool according to claim 1 or 8, characterized in that: The inner diameter of the adjusting rod (4) is adapted to the first fixed rod (1) and the second fixed rod (2), wherein the diameter of the support assembly (3) is slightly smaller than the inner diameter of the adjusting rod (4).

10. The pile foundation reinforcement cage protective layer tool according to claim 1, characterized in that: A rust-proof layer is also provided on the outside of the first fixing rod (1), the second fixing rod (2), the support assembly (3), and the adjusting rod (4).

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