Reinforcement cage mounting and positioning device

Abstract

The utility model provides a reinforcement cage installing and positioning device which comprises a frame, a plurality of unloading blocks annularly arranged around the center point are hinged to the bottom of the frame, a plurality of telescopic clamping columns annularly arranged around the center point of the frame are arranged on the top of the frame, each telescopic clamping column comprises a sleeve, and a positioning rod is telescopically inserted in each sleeve. And a lug plate for fixing is arranged outside the sleeve. The positioning frame is arranged at the top of the pile foundation hole, and the overall flatness of the device is adjusted through the unloading block, so that a horizontal supporting structure is formed in the hole opening, and the reinforcement cage can be accurately and horizontally erected in the center of the pile foundation hole; in addition, the positioning rods on the telescopic clamping columns are inserted into the positions below the stirrups on the top of the reinforcement cage, so that the reinforcement cage is stably erected, and the reinforcement cage is prevented from deviating or shaking in the butt joint process. The accuracy and the stability of butt joint of the reinforcement cages are improved, the construction safety and the operation efficiency are remarkably improved, and the workload of manual adjustment and repeated correction is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction, and in particular to a rebar cage installation and positioning device. Background Technology

[0002] In pile foundation construction, the installation quality of the reinforcing cage directly affects the overall bearing capacity and structural safety of the pile. Especially during the hoisting of deep pile reinforcing cages, due to their large length, segmented installation is often required. However, in actual operation, factors such as the complex construction site environment, limited precision of hoisting equipment, and human error can easily lead to misalignment of the reinforcing cage during hoisting and positioning. This misalignment not only results in uneven concrete cover thickness, affecting the pile foundation's durability and crack resistance, but can also cause excessive deviation in the main reinforcement bar connection positions, thus affecting welding quality and connection strength. Substandard main reinforcement bar connections directly weaken the overall structural performance of the reinforcing cage, reduce its bearing capacity, and may even cause structural quality problems such as pile hole misalignment. Once such problems occur, rework is often required, increasing construction costs, severely impacting construction progress, and posing significant quality and safety risks. Therefore, a reinforcing cage installation and positioning device is proposed to solve these problems. Utility Model Content

[0003] The main purpose of this utility model is to provide a rebar cage installation and positioning device to solve the problem that segmented rebar cages are prone to misalignment during installation and alignment.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a steel cage installation and positioning device, including a frame, with multiple unloading blocks arranged in a ring around the center point at the bottom of the frame, and multiple telescopic locking posts arranged in a ring around the center point at the top of the frame, each telescopic locking post including a sleeve, with a positioning rod telescopically inserted into the sleeve, and ear plates for fixing provided on the outside of the sleeve.

[0005] In the preferred embodiment, a central tube extending upwards is provided at the center of the frame, and the inner diameter of the central tube is larger than the outer diameter of the reinforcing cage.

[0006] In the preferred embodiment, an adjustment device is provided on the outside of the central cylinder to control the extension and retraction of the positioning rod.

[0007] In the preferred embodiment, the adjusting device includes a telescopic guide disc rotatably disposed outside the central cylinder. The top of the telescopic guide disc is provided with a number of guide arc grooves equal to the number of telescopic locking pins. A guide rod is provided at the bottom of the tail end of the positioning rod, and the guide rod slides in cooperation with the corresponding guide arc groove.

[0008] In a preferred embodiment, the adjustment device further includes a side drive device disposed on the frame. The drive device includes a drive unit and a transmission gear disposed on the output shaft of the drive unit. The outer ring of the telescopic guide disc is provided with driven teeth that mesh with the transmission gear.

[0009] The side of the frame is also provided with a first support frame for supporting the drive equipment.

[0010] In the preferred embodiment, the frame is also equipped with multiple locking mechanisms to restrict the rotation of the telescopic guide discs.

[0011] In the preferred embodiment, the locking mechanism includes an elastic locking part that fits against the bottom of the telescopic guide disc, and a pressing mechanism provided on the side of the frame for releasing the elastic locking part from the telescopic guide disc.

[0012] In the preferred embodiment, the elastic locking part includes multiple telescopic rods that move through the frame. The top of the telescopic rod is provided with a locking plate and the bottom is provided with a limiting plate. A telescopic spring is fitted on the outside of the telescopic rod between the locking plate and the frame. The locking plate fits against the telescopic guide plate under the action of the telescopic spring. An extension platform is provided on the outside of the locking plate.

[0013] In the preferred embodiment, the pressing mechanism includes a telescopic cylinder disposed on the side of the frame, and a pressing plate is disposed on the telescopic end of the telescopic cylinder, the pressing plate being located above the locking plate;

[0014] The side of the frame is also equipped with a second support frame for supporting the telescopic cylinder.

[0015] This invention provides a rebar cage installation and positioning device. By setting a positioning frame at the top of the pile foundation hole and adjusting the overall flatness of the device with unloading blocks, a horizontal support structure is formed at the hole opening. This allows the rebar cage to be accurately and horizontally positioned at the center of the pile foundation hole, significantly improving the alignment and stability of the installation. Furthermore, by inserting the positioning rod on the telescopic clamp below the top stirrups of the rebar cage, the rebar cage is securely erected, preventing offset or shaking during the connection process. This not only improves the accuracy and stability of the rebar cage connection but also significantly enhances construction safety and work efficiency, reducing the workload of manual adjustments and repeated corrections. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural diagram of the first embodiment of the present invention;

[0018] Figure 2 This is a utility model Figure 1 Exploded structure diagram;

[0019] Figure 3This is a structural diagram of the telescopic locking post of this utility model;

[0020] Figure 4 This is a structural diagram of the second embodiment of the present invention;

[0021] Figure 5 This is a utility model Figure 4 Half-section structural diagram;

[0022] Figure 6 This is a structural diagram of the locking mechanism of this utility model;

[0023] Figure 7 This is a utility model Figure 6 Another perspective on the structure diagram;

[0024] In the diagram: Frame 1; Unloading block 2; Telescopic locking post 3; Sleeve 301; Ear plate 302; Positioning rod 303; Center cylinder 5; Telescopic guide plate 6; Guide arc groove 7; Drive device 8; Drive equipment 801; Transmission gear 802; First support frame 803; Locking mechanism 9; Telescopic rod 901; Locking plate 902; Limiting plate 903; Telescopic spring 904; Extension platform 905; Telescopic cylinder 906; Lower pressure plate 907; Second support frame 908. Detailed Implementation

[0025] Example 1

[0026] like Figure 1-3 As shown, a rebar cage installation and positioning device includes a frame 1. Multiple unloading blocks 2 arranged in a ring around the center point are hinged to the bottom of the frame 1. In this embodiment, there are four unloading blocks 2, which are hinged to the bottom of the frame 1 via ball joints. The frame 1 can sit above the pile foundation hole via the unloading blocks 2, and the height of the unloading blocks 2 can be adjusted to achieve the effect of leveling the frame 1. Each unloading block 2 consists of four isosceles trapezoidal blocks. Adjusting bolts and nuts are provided between two isosceles trapezoidal blocks arranged vertically on the left and right sides, and limiting rods are provided between two isosceles trapezoidal blocks arranged horizontally on the top and bottom sides to facilitate opposite movement. This is a common commercially available product and is existing technology in this field; therefore, it will not be described in detail here.

[0027] Multiple telescopic posts 3 are arranged in a ring around the center point of the top of the frame 1. In this embodiment, there are four telescopic posts 3, which are equidistantly distributed. Each telescopic post 3 includes a sleeve 301, in which a positioning rod 303 is telescopically inserted. By telescopically extending and retracting the positioning rod 303 in the sleeve 301, its end can be inserted into or out of the steel cage body, thereby serving to erect the steel cage. The sleeve 301 is provided with two ear plates 302 for fixing. The ear plates 302 are arranged in a front-to-back pattern on the outside of the sleeve 301, thereby securing the sleeve 301 firmly.

[0028] When in use, after the pile foundation hole is formed, this positioning device can be installed on the top of the pile foundation hole and above the steel casing of the pile foundation hole. Then, the flatness of the positioning frame is adjusted by the unloading block 2. After the flatness of the positioning frame is adjusted, its center position is measured to ensure that it is positioned on the center point of the pile foundation. Then, the first section of the steel cage is hoisted into the steel casing. After it is in place, the positioning rods 303 of all the telescopic clamps 3 are inserted under the stirrups at the top of the steel cage, so that the steel cage is erected on it. After the steel cage is stabilized, the next section of the steel cage is hoisted above it and the main bars of the two are connected by welding or threaded sleeve. Then, the steel cage is hoisted again and the positioning rods 303 are retracted, and the steel cage is lowered again.

[0029] Example 2

[0030] Further explanation in conjunction with Example 1, such as Figure 3-7 As shown in the structure, in order to facilitate the unified and automated extension and retraction of the positioning rod 303, a central cylinder 5 extending upward is provided at the center of the frame 1. The inner diameter of the central cylinder 5 is larger than the outer diameter of the steel cage, and an adjustment device for controlling the extension and retraction of the positioning rod 303 is provided on the outside of the central cylinder 5.

[0031] The adjusting device includes a telescopic guide disc 6 rotatably disposed outside the central cylinder 5. Specifically, an annular groove is provided on the outside of the central cylinder 5, and a bearing is provided in the annular groove. The telescopic guide disc 6 is rotatably installed in the annular groove through the bearing. The top of the telescopic guide disc 6 is provided with the same number of guide arc grooves 7 as the telescopic locking pins 3. A guide rod 304 is provided at the bottom of the tail end of the positioning rod 303. The guide rod 304 slides in cooperation with the corresponding guide arc groove 7.

[0032] With this design, the positioning rod 303 can be extended and retracted under the guidance of the guide arc groove 7 by rotating the telescopic guide plate 6 and utilizing the sliding cooperation between the guide rod 304 and the guide arc groove 7, thereby achieving the synchronous extension and retraction of multiple positioning rods 303.

[0033] Furthermore, the adjustment device also includes a side drive device 8 disposed on the frame 1. The drive device 8 includes a drive device 801 and a transmission gear 802 disposed on the output shaft of the drive device 801. The outer ring of the telescopic guide disk 6 is provided with driven teeth that mesh with the transmission gear 802. Thus, the drive device 801 can drive the telescopic guide disk 6 to rotate through the transmission of the transmission gear 802 and the driven teeth. The side of the frame 1 is also provided with a first support frame 803 for supporting the drive device 801, thereby improving the stability of the drive device 801 installation.

[0034] It should be noted that the drive device 801 is composed of a motor and a reducer.

[0035] In the preferred embodiment, the frame 1 is also provided with a plurality of locking mechanisms 9 to restrict the rotation of the telescopic guide disc 6. In this embodiment, there are three locking mechanisms 9, which are respectively provided on the other three sides besides the drive device 8. They can lock the telescopic guide disc 6 when no adjustment of telescopic movement is required, and prevent it from rotating unnecessarily.

[0036] In the preferred embodiment, the locking mechanism 9 includes an elastic locking part that fits against the bottom of the telescopic guide plate 6, and a pressing mechanism provided on the side of the frame 1 for releasing the elastic locking part from the telescopic guide plate 6.

[0037] The elastic locking part includes multiple telescopic rods 901 that movably pass through the frame 1. In this embodiment, there are three telescopic rods 901. The frame 1 is provided with holes for the telescopic rods 901 to move through. The top end of the telescopic rod 901 is provided with a locking plate 902 and the bottom end is provided with a limiting plate 903. The telescopic rod 901 is fitted with a telescopic spring 904 located between the locking plate 902 and the frame 1. Under the action of the telescopic spring 904, the locking plate 902 is in contact with the telescopic guide plate 6, thereby using the locking plate 902 to lock the telescopic guide plate 6. The contact surface of the locking plate 902 is also provided with a rubber sheet to improve friction. An extension platform 905 is provided on the outer side of the locking plate 902, which facilitates pressing down the locking plate 902 through the extension platform 905, thereby releasing the locking relationship between the locking plate 902 and the telescopic guide plate 6.

[0038] In addition, the pressing mechanism includes a telescopic cylinder 906 set on the side of the frame 1. A pressing plate 907 is set on the telescopic end of the telescopic cylinder 906. The pressing plate 907 is located above the locking plate 902. With this design, the telescopic cylinder 906 can be used to control the up and down movement of the pressing plate 907, thereby achieving the effect of pressing down the locking plate 902. At the same time, after the pressing plate 907 is raised, the locking plate 902 can be reset under the action of the telescopic spring 904.

[0039] The side of frame 1 is also provided with a second support frame 908 for supporting the telescopic cylinder 906.

[0040] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A reinforcing cage installation positioning device characterised in that: The frame (1) includes a frame (1), with multiple unloading blocks (2) hinged at the bottom of the frame (1) and arranged in a ring around the center point. Multiple telescopic locking posts (3) are arranged in a ring around the center point at the top of the frame (1). The telescopic locking posts (3) include a sleeve (301), a positioning rod (303) is telescopically inserted into the sleeve (301), and an ear plate (302) for fixing is provided on the outside of the sleeve (301).

2. A reinforcing cage positioning apparatus as claimed in claim 1, wherein: A central tube (5) extending upward is provided at the center of the frame (1), and the inner diameter of the central tube (5) is larger than the outer diameter of the steel cage.

3. A reinforcing cage positioning apparatus as claimed in claim 2, wherein: The center cylinder (5) is provided with an adjustment device on the outside that can control the extension and retraction of the positioning rod (303).

4. A reinforcing cage positioning apparatus as claimed in claim 3, wherein: The adjustment device includes a telescopic guide disc (6) that is rotatably disposed outside the central cylinder (5). The top of the telescopic guide disc (6) is provided with the same number of guide arc grooves (7) as the telescopic pins (3). The bottom of the tail end of the positioning rod (303) is provided with a guide rod (304). The guide rod (304) slides in cooperation with the corresponding guide arc groove (7).

5. The rebar cage installation and positioning device according to claim 4, characterized in that: The adjustment device also includes a side drive device (8) provided on the frame (1). The drive device (8) includes a drive device (801) and a transmission gear (802) provided on the output shaft of the drive device (801). The outer ring of the telescopic guide disc (6) is provided with driven teeth that mesh with the transmission gear (802). The side of the frame (1) is also provided with a first support frame (803) for supporting the drive device (801).

6. A reinforcing cage positioning apparatus as claimed in claim 4 or 5 wherein: The frame (1) is also equipped with multiple locking mechanisms (9) to restrict the rotation of the telescopic guide disc (6).

7. A reinforcing cage positioning apparatus as claimed in claim 6, wherein: The locking mechanism (9) includes an elastic locking part that fits against the bottom of the telescopic guide plate (6), and a pressing mechanism provided on the side of the frame (1) for releasing the elastic locking part from the telescopic guide plate (6).

8. A reinforcing cage positioning apparatus as claimed in claim 6, wherein: The elastic locking part includes multiple telescopic rods (901) that move through the frame (1). The top end of the telescopic rod (901) is provided with a locking plate (902) and the bottom end is provided with a limiting plate (903). The telescopic rod (901) is fitted with a telescopic spring (904) located between the locking plate (902) and the frame (1). The locking plate (902) is in contact with the telescopic guide plate (6) under the action of the telescopic spring (904). An extension platform (905) is provided on the outside of the locking plate (902).

9. A reinforcing cage positioning apparatus as claimed in claim 8, wherein: The pressing mechanism includes a telescopic cylinder (906) disposed on the side of the frame (1), and a pressing plate (907) is disposed on the telescopic end of the telescopic cylinder (906), and the pressing plate (907) is located above the locking plate (902); The side of the frame (1) is also provided with a second support frame (908) for supporting the telescopic cylinder (906).

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