Steel bar cage straight thread sleeve high efficiency butt joint construction device

Abstract

The application relates to the technical field of building construction, in particular to a high-efficiency butt joint construction device for a steel reinforcement cage straight-thread sleeve. A detachable base buckle support is fixedly arranged on a detachable base, a bearing type disc is arranged on the upper portion of the detachable base, a fixed rod is fixed on the inner ring of the bearing type disc and rotates with the inner ring, a vertical sliding groove is arranged on the fixed rod, an adjustable steel reinforcement cage limiter is arranged in the vertical sliding groove, and an electric wrench is arranged on the fixed rod and the output end of the electric wrench faces the steel reinforcement cage. The bearing type disc and the fixed rod can drive the steel reinforcement cage limiter and the electric wrench to be circumferentially adjusted, which is helpful for adapting to the distribution positions of different main reinforcements during the hoisting of the steel reinforcement cage and providing assistance for the preliminary alignment of the main reinforcements of the upper and lower steel reinforcement cage sections.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a high-efficiency docking construction device for straight threaded sleeves for steel cages. Background Technology

[0002] With the continuous advancement of urbanization in my country, the construction scale of subways, tunnels, high-rise buildings, and large underground facilities continues to expand. As a key component bearing structural loads and providing foundation pit support, the construction quality of cast-in-place piles directly affects the safety and durability of the overall project. For projects with deep piles, the reinforcing cage usually needs to be fabricated in sections at the processing area and then transported to the site for installation section by section. When the diameter of the main reinforcement bars is large, straight threaded sleeves are often used to connect the sections of the reinforcing cage.

[0003] However, in actual construction, due to the large number of main reinforcing bars in the upper and lower sections of the steel cage, and the requirement to meet a 50% staggered lap joint, the sleeves are distributed vertically in the connection area, increasing the difficulty of manual alignment. Traditional construction methods mainly rely on manual observation and adjustment. Under the influence of external factors such as hoisting sway and limited space at the borehole opening, problems such as inaccurate alignment of the main reinforcing bars and inadequate tightening of the sleeves are prone to occur. This may result in uneven number of exposed threads at both ends of the sleeve, or gaps inside the sleeve, thus affecting the overall straightness and connection strength of the steel cage. Such quality problems may reduce the bearing capacity and shear resistance of the pile body after pile completion, posing potential hidden dangers to the engineering structure. Summary of the Invention

[0004] The present invention aims to solve the above problems, thereby providing a high-efficiency docking construction device for straight threaded sleeves of rebar cages that simplifies the connection difficulty of rebar cage sleeves.

[0005] The technical solution adopted by the present invention to solve the aforementioned problem is as follows: A high-efficiency splicing construction device for straight threaded sleeves of reinforcing cages includes a detachable base, a snap-fit ​​support, a bearing-type disc, a fixing rod, and an electric wrench. The snap-fit ​​support is fixedly mounted on the detachable base, the bearing-type disc is mounted on the upper part of the detachable base, the fixing rod is fixed on the inner ring of the bearing-type disc and rotates with the inner ring, the fixing rod is provided with a vertical sliding groove, and an adjustable reinforcing cage limiter is provided in the vertical sliding groove. The electric wrench is mounted on the fixing rod with its output end facing the reinforcing cage.

[0006] By incorporating a rotatable bearing-type disc and a fixed rod, the rebar cage limiter and electric wrench can be adjusted circumferentially, facilitating the adaptation to different main bar distribution positions during rebar cage hoisting and providing initial alignment assistance for the main bars of the upper and lower rebar cage sections. The adjustable rebar cage limiter can position and limit the main bars at different heights, helping to reduce alignment deviations caused by hoisting sway or manual operation. The electric wrench on the fixed rod can mechanically tighten the sleeve, helping to reduce labor intensity and improve the consistency of connection operations. The overall structure of this device provides relatively stable working conditions for the connection of the main bars of the rebar cage, helping to improve the misalignment and inadequate tightening that are prone to occur during traditional manual connection.

[0007] The present invention, which presents the above-described technical solution, has the following prominent features compared with the prior art: As a preferred embodiment, a further technical solution of the present invention is: Furthermore, the detachable base has a square structure, and the snap-on supports are welded to both sides of a pair of opposite sides of the detachable base, which facilitates the installation and positioning of the device at the mouth of the protective cylinder, while providing a stable support foundation for the upper components.

[0008] Furthermore, the snap-fit ​​support is used to place the sleeper steel and forms a slot to restrict the displacement of the sleeper steel. The sleeper steel is used to pass through the reinforcing cage and be supported on the casing. The self-weight of the lowered reinforcing cage can be used to stabilize the device on the casing, reducing additional fixing measures and enhancing the overall stability of the device during the docking process.

[0009] Furthermore, the outer ring of the bearing-type disc is fixed on a detachable base, and the inner ring is rotatably connected to the outer ring through ball bearings. The fixing rod can drive the rebar cage limiter and the electric wrench to rotate around the center of the pile hole, which facilitates the alignment and connection of the main bars at different positions in sequence, adapting to the operational needs of the circumferential distribution of the rebar cage.

[0010] Furthermore, the rebar cage limiter includes a screw rod and an arc-shaped sliding groove. The screw rod passes through the vertical sliding groove on the fixed rod. A clamping nut is provided on the screw rod and located on the inner and outer sides of the fixed rod for locking and position adjustment. The height of the rebar cage limiter and its distance from the main reinforcement can be adjusted to adapt to the construction requirements of rebar cages of different diameters and different lap lengths, thus improving the applicability of the device.

[0011] Furthermore, the vertical chute includes a lower chute and an upper chute, and the rebar cage limiter correspondingly includes an independently adjustable upper limiter and a lower limiter. By setting the positions of the upper and lower limiters respectively, independent guidance and positioning references can be provided for the main bars of the upper and lower rebar cages, which helps to ensure that the upper and lower main bars are on the same vertical line and improves the alignment accuracy.

[0012] Furthermore, the arc-shaped chute is a guide structure that is open at the top and closed at the bottom, which facilitates the main reinforcement bars of the steel cage to slide into and be constrained in the chute during the natural lowering process, playing a dual role of guiding and limiting.

[0013] Furthermore, a telescopic rod is provided between the electric wrench and the fixed rod. The working distance between the electric wrench and the socket can be changed by telescopic adjustment, which makes it easier to accurately align the output end of the electric wrench with the socket under different working conditions and improves the convenience of tightening operation.

[0014] Furthermore, there are four fixing rods, which are fixed at the midpoints of the four sides of the inner ring of the bearing-type disc, forming multiple working positions in the circumference. This allows the device to simultaneously serve the docking process of multiple main reinforcement bars, which is beneficial to improving the overall construction efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the upper limiter structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the installation of the lower section of the reinforcing cage in an embodiment of the present invention; Figure 4 This is a schematic diagram of the steel cage connection structure according to an embodiment of the present invention; The markings in the diagram are as follows: 1. Detachable base; 2. Clip-on support; 3. Pillar steel; 4. Bearing-type disc; 5. Fixing rod; 51. Lower slide groove; 52. Upper slide groove; 6. Rebar cage limiter; 61. Lower limiter; 611. Lower screw; 612. Lower outer clamping nut; 613. Lower inner clamping nut; 614. Lower arc-shaped slide groove; 621. Upper screw; 622. Upper outer clamping nut; 623. Upper inner clamping nut; 624. Electric wrench; 7. Telescopic rod; 8. Protective sleeve; 9. Lower section of rebar cage; 10. Upper section of rebar cage; 11. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0017] A high-efficiency splicing construction device for straight threaded sleeves of rebar cages includes a detachable base 1, a snap-fit ​​support 2, a bearing-type disc 4, a fixing rod 5, and an electric wrench 7. The snap-fit ​​support 2 is fixedly mounted on the detachable base 1. The bearing-type disc 4 is mounted on the upper part of the detachable base 1. The fixing rod 5 is fixed on the inner ring of the bearing-type disc 4 and rotates with the inner ring. The fixing rod 5 is provided with a vertical sliding groove, and an adjustable rebar cage limiter 6 is provided in the vertical sliding groove. The height of the rebar cage limiter 6 is adjustable. The electric wrench 7 is mounted on the fixing rod 5 with its output end facing the rebar cage.

[0018] Furthermore, the detachable base 1 has a square structure, and the snap-on support 2 is welded to a pair of opposite sides of the detachable base 1, which facilitates the installation and positioning of the device at the opening of the protective cylinder 9, and at the same time provides a stable support foundation for the upper components.

[0019] Furthermore, the snap-fit ​​support 2 is used to place the sleeper steel 3 and forms a slot to restrict the displacement of the sleeper steel 3. The sleeper steel 3 is used to pass through the reinforcing cage and be supported on the casing 9. The self-weight of the lowered reinforcing cage can be used to stabilize the device on the casing 9, reducing additional fixing measures and enhancing the overall stability of the device during the docking process.

[0020] Furthermore, the outer ring of the bearing-type disc 4 is fixed on the detachable base 1, and the inner ring is rotatably connected to the outer ring through ball bearings. The fixing rod 5 can drive the rebar cage limiter 6 and the electric wrench 7 to rotate around the center of the pile hole, which facilitates the alignment and connection of the main bars at different positions in sequence, adapting to the operational requirements of the circumferential distribution of the rebar cage.

[0021] Furthermore, the rebar cage limiter 6 includes a screw rod and an arc-shaped sliding groove. The screw rod passes through the vertical sliding groove on the fixed rod 5. A clamping nut is provided on the screw rod and located on the inner and outer sides of the fixed rod 5 for locking and position adjustment. The height of the rebar cage limiter 6 and its distance from the main reinforcement can be adjusted, which can adapt to the construction requirements of rebar cages of different diameters and different lap lengths, thus improving the applicability of the device.

[0022] Furthermore, the vertical chute includes a lower chute 51 and an upper chute 52. Correspondingly, the rebar cage limiter 6 includes an independently adjustable upper limiter 62 and a lower limiter 61. The upper limiter 62 includes an upper screw 621, an upper outer clamping nut 622, an upper inner clamping nut 623, and an upper arc-shaped chute 624. The lower limiter 61 includes a lower screw 611, a lower outer clamping nut 612, a lower inner clamping nut 613, and a lower arc-shaped chute 614. By setting the positions of the upper and lower limiters respectively, independent guiding and positioning references can be provided for the main bars of the upper and lower rebar cages, which helps to ensure that the upper and lower main bars are located on the same vertical line and improves the alignment accuracy.

[0023] Furthermore, the arc-shaped chute is a guide structure that is open at the top and closed at the bottom. The arc-shaped chute includes an upper arc-shaped chute 624 and a lower arc-shaped chute 614, which facilitates the main reinforcement bars of the steel cage to slide into and be constrained in the chute during the natural lowering process, playing a dual role of guiding and limiting.

[0024] Furthermore, a telescopic rod 8 is provided between the electric wrench 7 and the fixed rod 5. The working distance between the electric wrench 7 and the socket can be changed by telescopic adjustment, which makes it easier to accurately align the output end of the electric wrench 7 with the socket under different working conditions and improves the convenience of tightening operation.

[0025] Furthermore, there are four fixing rods 5, which are fixed at the midpoints of the four sides of the inner ring of the bearing-type disc 4, forming multiple working positions in the circumference. This allows the device to simultaneously serve the docking process of multiple main reinforcing bars, which is beneficial to improving the overall construction efficiency.

[0026] First, install the detachable base 1 in the designated position, ensuring that the upper edge of the base is level with the upper opening of the protective sleeve 9. The crane lifts the lower section of the reinforcing cage 10 and lowers it along the casing. When the reinforcing bars are close to the top of the casing 9, the lowering is stopped. The sleeper steel 3 is passed through the gap between the buckle support 2 and the main reinforcement of the lower section of the reinforcing cage 10. The lower section of the reinforcing cage 10 is then lowered, and its own weight is used to fix the device. The bearing-type disc 4 is adjusted so that the fixing rod 5 is aligned with the main reinforcement. The position of the lower limiter 61 is adjusted and locked. Then, the electric wrench 7 is aligned with the sleeve carried by the lower section of the reinforcing cage 10. After the upper limiter 62 and the lower limiter 61 are aligned in the same vertical line, the upper section of the reinforcing cage 11 is lifted and lowered so that its main reinforcement passes through the upper limiter 62. After the threads of the main reinforcement of the lower section of the reinforcing cage 10 and the upper section of the reinforcing cage 11 come into contact, the electric wrench 7 is started to tighten the sleeve. After the connection is completed, all the tight nuts are loosened. The reinforcing cage limiter 6 is moved to the outside of the reinforcing cage to detach from the main reinforcement. The sleeper steel 3 is pulled out, and the connected reinforcing cage is lowered as a whole.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A high-efficiency splicing construction device for straight threaded sleeves of reinforcing cages, characterized in that: It includes a detachable base, a snap-on support, a bearing-type disc, a fixing rod, and an electric wrench. The snap-on support is fixedly mounted on the detachable base. The bearing-type disc is mounted on the upper part of the detachable base. The fixing rod is fixed on the inner ring of the bearing-type disc and rotates with the inner ring. The fixing rod is provided with a vertical slide groove, and an adjustable rebar cage limiter is provided in the vertical slide groove. The electric wrench is mounted on the fixing rod with its output end facing the rebar cage. The detachable base has a square structure, and the snap-on supports are welded to both sides of a pair of opposite sides of the detachable base; The snap-on support is used to place the sleeper steel and forms a slot to restrict the displacement of the sleeper steel. The sleeper steel is used to pass through the reinforcing cage and is supported on the casing. The outer ring of the bearing-type disc is fixed to a detachable base, and the inner ring is rotatably connected to the outer ring through balls. The rebar cage limiter includes a screw rod and an arc-shaped sliding groove. The screw rod passes through the vertical sliding groove on the fixed rod, and a clamping nut is provided on the screw rod and located on the inner and outer sides of the fixed rod for locking and position adjustment. The vertical chute includes a lower chute and an upper chute, and the rebar cage limiter correspondingly includes an independently adjustable upper limiter and a lower limiter.

2. The high-efficiency butt welding construction device for straight threaded sleeves of reinforcing cages according to claim 1, characterized in that: The arc-shaped chute is a guide structure that is open at the top and closed at the bottom.

3. The high-efficiency butt welding construction device for straight threaded sleeves of reinforcing cages according to claim 1, characterized in that: An extension rod is provided between the electric wrench and the fixed rod.

4. The high-efficiency butt welding construction device for straight threaded sleeves of reinforcing cages according to claim 1, characterized in that: There are four fixing rods, which are fixed at the midpoints of the four sides of the inner ring of the bearing-type disc.

Images