Accurate alignment connecting device and method for prefabricated building prefabricated parts

Abstract

The invention discloses a precise alignment connecting device and method for prefabricated parts of a prefabricated building, and belongs to the field of prefabricated constructions.The precise alignment connecting device comprises the prefabricated parts, the prefabricated parts comprise the lower prefabricated parts and the upper prefabricated parts, and steel bars are pre-buried in the lower prefabricated parts and used for installing the upper prefabricated parts; the adjusting mechanism is arranged on the fabricated building foundation, and the horizontal position of the upper prefabricated part is adjusted through the adjusting mechanism; and the acquisition camera is arranged on the foundation on the side of the hoisting in-place point of the upper prefabricated part. According to the horizontal fine adjustment device, the L-shaped bearing plate with the pulleys is arranged to bear the upper prefabricated part, traditional sliding friction is converted into rolling friction, resistance during horizontal fine adjustment is greatly reduced, and workers can easily push the heavy prefabricated part to conduct position adjustment; and the in-place difficulty of hoisting in-place operation of the prefabricated part and the labor intensity of personnel are effectively reduced.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building technology, specifically a device and method for precise alignment and connection of prefabricated building components. Background Technology

[0002] With the development of industrialized construction, prefabricated buildings have been widely used in the construction industry due to their advantages such as high construction efficiency, controllable quality, and environmental friendliness and energy conservation. In the construction process of prefabricated buildings, the hoisting and connection of prefabricated components is one of the key procedures, and its precision directly affects the stability and safety of the entire building structure.

[0003] Currently, when installing upper precast components onto lower precast components, tower cranes are typically used to lift the components to the installation position, and then manual alignment is performed. However, due to the large size and heavy weight of the precast components, they are prone to swaying during the lifting process, making it difficult to quickly and accurately align the connecting holes at the bottom of the components with the lower embedded steel bars. Existing adjustment methods mainly rely on manual visual observation and fine-tuning with tools such as crowbars. However, manual adjustment often requires repeated lifting and adjustment, resulting in low construction efficiency and safety hazards due to close-range manual operation. Furthermore, for heavy components, manual fine-tuning is difficult, time-consuming, and labor-intensive. Summary of the Invention

[0004] The purpose of this invention is to provide a precise alignment and connection device and method for prefabricated components of prefabricated buildings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precise alignment and connection device for prefabricated components of assembled buildings, comprising:

[0006] The precast component includes a lower precast component and an upper precast component, wherein the lower precast component has embedded steel bars for installing the upper precast component;

[0007] An adjustment mechanism is installed on the foundation of the prefabricated building to adjust the horizontal position of the upper prefabricated components;

[0008] A data acquisition camera is installed on the foundation to the side of the hoisting point of the upper precast component. The data acquisition camera captures images in real time of the relative position between the bottom connection hole of the upper precast component and the steel bars embedded in the lower precast component.

[0009] The adjustment mechanism includes:

[0010] The base is located on one side of the hoisting point of the upper prefabricated component;

[0011] A hydraulic telescopic boom, which is fixedly installed on a base;

[0012] A connecting seat is fixedly connected to the top of the hydraulic telescopic arm, and a slide rail is provided on the side of the connecting seat facing the upper prefabricated component;

[0013] A sliding mounting base is slidably connected to a slide rail, and the sliding mounting base is threaded with fastening bolts for locking it onto the slide rail;

[0014] The L-shaped support plate is mounted on the sliding mounting base, and the L-shaped support plate is rotatably connected to pulleys for supporting and guiding the upper prefabricated components.

[0015] As a further preferred embodiment of this technical solution, the adjustment mechanism further includes: an adjustment seat, which is fixedly connected to the top of the connecting seat;

[0016] An adjusting screw is threadedly connected to an adjusting seat. One end of the adjusting screw is fixedly connected to an adjusting knob, and the other end of the adjusting screw is fixedly connected to a rubber pad.

[0017] As a further preferred embodiment of this technical solution: the adjustment knob is provided with a scale for displaying the adjustment range.

[0018] As a further preferred embodiment of this technical solution: two sets of sliding mounting seats are provided, symmetrically arranged on the slide rail; two sets of L-shaped receiving plates are provided, respectively installed on the two sets of sliding mounting seats.

[0019] As a further preferred embodiment of this technical solution: the acquisition camera is equipped with a wireless module, and the acquisition camera is electrically connected to an external display screen through the wireless module.

[0020] A method for precise alignment and connection of prefabricated components for prefabricated buildings, based on the device described in any one of the above, includes the following steps:

[0021] S1: The upper prefabricated components are hoisted to the assembly position by tower crane, so that the upper prefabricated components are suspended above the embedded steel bars. Two sets of adjustment mechanisms are prepared and arranged on both sides of the hoisting and assembly point.

[0022] S2: Adjust the position of the sliding mounting seat on the slide rail according to the size of the upper prefabricated component so that the spacing between the two sets of L-shaped support plates matches the width of the upper prefabricated component, and lock it with fastening bolts;

[0023] S3: Control the movement of the hydraulic telescopic boom so that the connecting seat supports the upper precast component and then lowers it to a height close to the installation height of the lower precast component;

[0024] S4: The camera captures images in real time of the relative positions of the connecting holes at the bottom of the upper precast component and the steel bars embedded in the lower precast component. Based on the image information, the worker drives the adjusting screw to extend and retract by rotating the adjusting knob, so that the rubber pad pushes against the upper precast component. With the help of the pulleys on the L-shaped support plate, the upper precast component moves horizontally until the connecting holes and steel bars are precisely aligned in the vertical direction.

[0025] S5: After fine-tuning, slowly lower the upper precast component so that the reinforcing bars are inserted into the corresponding connection holes to complete the connection.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. In this invention, by setting an L-shaped support plate with pulleys to support the upper precast components, the traditional sliding friction is transformed into rolling friction, which greatly reduces the resistance during horizontal fine-tuning. This allows workers to easily push heavy precast components to adjust their position, effectively reducing the difficulty of positioning the precast components and the labor intensity of the workers. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of a precise alignment and connection device for prefabricated components of assembled buildings according to the present invention.

[0029] Figure 2 This is a partial structural diagram of a precise alignment and connection device for prefabricated components of assembled buildings according to the present invention. Figure 1 ;

[0030] Figure 3 This is a partial structural diagram of a precise alignment and connection device for prefabricated components of assembled buildings according to the present invention. Figure 2

[0031] Legend:

[0032] 1. Lower precast component; 2. Upper precast component; 3. Adjustment mechanism; 301. Base; 302. Hydraulic telescopic arm; 303. Connecting seat; 304. Slide rail; 305. Sliding mounting seat; 3051. Fastening bolt; 306. L-shaped receiving plate; 307. Pulley; 308. Adjustment seat; 309. Adjustment screw; 310. Adjustment knob; 311. Rubber pad; 4. Acquisition camera Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example

[0035] Please see Figure 1 - Figure 3 As shown, the present invention provides a technical solution: a precise alignment and connection device for prefabricated components of prefabricated buildings, including prefabricated components, the prefabricated components including a lower prefabricated component 1 and an upper prefabricated component 2, the lower prefabricated component 1 having embedded steel bars for installing the upper prefabricated component 2; an adjustment mechanism 3, which is set on the foundation of the prefabricated building, and adjusts the horizontal position of the upper prefabricated component 2; and a acquisition camera 4, which is arranged on the foundation to the side of the hoisting point of the upper prefabricated component 2, and acquires in real time images of the relative position between the bottom connection hole of the upper prefabricated component 2 and the embedded steel bars on the lower prefabricated component 1; wherein, the adjustment mechanism 3 includes: a base 301, The base 301 is located on one side of the hoisting point of the upper precast component 2; the hydraulic telescopic arm 302 is fixedly installed on the base 301; the connecting seat 303 is fixedly connected to the top of the hydraulic telescopic arm 302, and the side of the connecting seat 303 facing the upper precast component 2 is provided with a slide rail 304; the sliding mounting seat 305 is slidably connected to the slide rail 304, and the sliding mounting seat 305 is threaded with a fastening bolt 3051 for locking it to the slide rail 304; the L-shaped support plate 306 is installed on the sliding mounting seat 305, and the L-shaped support plate 306 is rotatably connected with a pulley 307 for supporting and guiding the upper precast component 2.

[0036] In this embodiment, specifically: the adjustment mechanism 3 further includes: an adjustment seat 308, which is fixedly connected to the top of the connecting seat 303; and an adjustment screw 309, which is threadedly connected to the adjustment seat 308. One end of the adjustment screw 309 is fixedly connected to an adjustment knob 310, and the other end of the adjustment screw 309 is fixedly connected to a rubber pad 311.

[0037] In this embodiment, specifically, the adjustment knob 310 is provided with a scale for displaying the adjustment stroke.

[0038] In this embodiment, specifically: two sets of sliding mounting bases 305 are provided, symmetrically arranged on the slide rail 304; two sets of L-shaped receiving plates 306 are provided, respectively installed on the two sets of sliding mounting bases 305.

[0039] In this embodiment, specifically: the acquisition camera 4 is equipped with a wireless module, and the acquisition camera 4 is electrically connected to an external display screen through the wireless module.

[0040] A method for precise alignment and connection of prefabricated components for prefabricated buildings, based on the apparatus described above, includes the following steps:

[0041] S1: The upper prefabricated component 2 is hoisted to the assembly position by a tower crane, so that the upper prefabricated component 2 is suspended above the embedded steel bars, and two sets of adjustment mechanisms 3 are arranged on both sides of the hoisting and positioning point;

[0042] S2: Determine the width of the upper prefabricated component 2 to be installed. Loosen the fastening bolts 3051 and adjust the positions of the two sets of sliding mounting seats 305 on the slide rail 304 so that the distance between the two sets of L-shaped receiving plates 306 is slightly larger than the width of the upper prefabricated component 2, so that the component can be smoothly inserted. After adjustment, tighten the fastening bolts 3051 to lock the sliding mounting seats 305.

[0043] S3: Activate the hydraulic telescopic boom 302 to raise the connecting seat 303 to an appropriate height, so that the two sets of L-shaped support plates 306 are directly below the upper precast component 2. Slowly lower the upper precast component 2 so that its lower end is placed on the L-shaped support plate 306 and the lower end of the upper precast component 2 is in contact with the pulley 307. Through the fine adjustment of the hydraulic telescopic boom 302, the upper precast component 2 is slowly lowered until its bottom connecting hole is close to the top of the pre-embedded steel bar on the lower precast component 1.

[0044] S4: The relative position images of the connecting holes at the bottom of the upper precast component 2 and the pre-embedded steel bars on the lower precast component 1 are captured in real time by the acquisition camera 4. The worker observes in real time through the external display screen and judges the direction and distance to be adjusted. If horizontal movement is required, the adjustment knob 310 on the corresponding side is rotated. The adjustment knob 310 drives the adjustment screw 309 to rotate, so that the adjustment screw 309 extends and retracts on the adjustment seat 308, thereby driving the rubber pad 311 to push against the side of the upper precast component 2. Since the bottom of the upper precast component 2 is supported on the L-shaped support plate 306 and in contact with the pulley 307, the pulley 307 converts the sliding friction into rolling friction, so that the worker can easily and smoothly push the upper precast component 2 to make horizontal displacement. The scale on the adjustment knob 310 can provide the worker with quantitative adjustment reference to achieve precise fine adjustment. Repeat the above steps until all connecting holes and steel bars are completely aligned in the vertical direction.

[0045] S5: After confirming accurate alignment, while the tower crane is slowly lowered, control the hydraulic telescopic boom 302 to descend synchronously, so that the steel bars on the lower precast component 1 are accurately inserted into the connection holes at the bottom of the upper precast component 2. After insertion, remove the adjustment mechanism 3 to complete this installation connection.

[0046] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise alignment and connection device for prefabricated components of assembled buildings, characterized in that, include: The prefabricated component includes a lower prefabricated component (1) and an upper prefabricated component (2). The lower prefabricated component (1) has steel bars embedded in it for installing the upper prefabricated component (2). Adjustment mechanism (3), which is set on the foundation of the prefabricated building, adjusts the horizontal position of the upper prefabricated component (2); A camera (4) is installed on the foundation to the side of the hoisting point of the upper precast component (2). The camera (4) collects images of the relative position between the bottom connecting hole of the upper precast component (2) and the pre-embedded steel bars on the lower precast component (1) in real time. The adjustment mechanism (3) includes: The base (301) is located on one side of the hoisting point of the upper prefabricated component (2); A hydraulic telescopic boom (302) is fixedly installed on a base (301); Connecting seat (303), the connecting seat (303) is fixedly connected to the top of the hydraulic telescopic arm (302), and the connecting seat (303) has a slide rail (304) on the side facing the upper prefabricated component (2). A sliding mounting base (305) is slidably connected to a slide rail (304), and a fastening bolt (3051) for locking it to the slide rail (304) is threaded onto the sliding mounting base (305). L-shaped support plate (306), which is mounted on the sliding mounting base (305), and a pulley (307) for supporting and guiding the upper prefabricated component (2) is rotatably connected to the L-shaped support plate (306).

2. The precise alignment and connection device for prefabricated components of assembled buildings according to claim 1, characterized in that, The adjustment mechanism (3) further includes: Adjustment seat (308), which is fixedly connected to the top of the connecting seat (303); An adjusting screw (309) is threadedly connected to an adjusting seat (308). One end of the adjusting screw (309) is fixedly connected to an adjusting knob (310), and the other end of the adjusting screw (309) is fixedly connected to a rubber pad (311).

3. The precise alignment and connection device for prefabricated components of assembled buildings according to claim 2, characterized in that: The adjustment knob (310) is provided with a scale for displaying the adjustment stroke.

4. The precise alignment and connection device for prefabricated components of assembled buildings according to claim 3, characterized in that: Two sets of sliding mounting bases (305) are symmetrically arranged on the slide rail (304); two sets of L-shaped receiving plates (306) are respectively installed on the two sets of sliding mounting bases (305).

5. The precise alignment and connection device for prefabricated components of assembled buildings according to claim 4, characterized in that: The acquisition camera (4) is equipped with a wireless module, and the acquisition camera (4) is electrically connected to an external display screen through the wireless module.

6. A method for precise alignment and connection of prefabricated components for prefabricated buildings, based on the device described in any one of claims 1 to 5, characterized in that, Includes the following steps: S1: The upper prefabricated component (2) is hoisted to the assembly position by tower crane, so that the upper prefabricated component (2) is suspended above the embedded steel bars, and two sets of adjustment mechanisms (3) are arranged on both sides of the hoisting point. S2: According to the size of the upper prefabricated component (2), adjust the position of the sliding mounting seat (305) on the slide rail (304) so ​​that the spacing between the two sets of L-shaped support plates (306) matches the width of the upper prefabricated component (2), and lock it with fastening bolts (3051); S3: Control the movement of the hydraulic telescopic boom (302) so that the connecting seat (303) receives the upper precast component (2) and then lowers it to a height close to the installation height of the lower precast component (1); S4: The relative position images of the connecting hole at the bottom of the upper precast component (2) and the pre-embedded steel bars on the lower precast component (1) are collected in real time by the acquisition camera (4). According to the image information, the worker drives the adjustment screw (309) to extend and retract by rotating the adjustment knob (310), so that the rubber pad (311) pushes against the upper precast component (2). The upper precast component (2) is moved horizontally by means of the pulley (307) on the L-shaped support plate (306) until the connecting hole and the steel bars are precisely aligned in the vertical direction. S5: After fine-tuning, slowly lower the upper precast component (2) so that the reinforcing bar is inserted into the corresponding connection hole to complete the connection.

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