A visual prefabricated wall hoisting rapid positioning device and its construction method

Abstract

This invention belongs to the field of prefabricated building construction technology, and particularly relates to a visual prefabricated wall hoisting and rapid positioning device and its construction method. It includes a display screen assembly, which is electrically connected to a miniature wide-angle camera via a connecting cable. The display screen assembly is fixed to the prefabricated wall using strong Velcro fasteners. The miniature wide-angle camera is located at the bottom of the prefabricated wall and displays real-time images of the position of the grouting sleeve and the reserved reinforcing steel at the lower end of the prefabricated wall on the display screen assembly. Based on the images on the display screen assembly, the prefabricated wall is quickly positioned, and the grouting sleeve at the lower end of the prefabricated wall is quickly aligned with the reserved reinforcing steel. The prefabricated wall then descends, completing the connection between the grouting sleeve and the reserved reinforcing steel. This visualizes the connection between the prefabricated wall and the reserved reinforcing steel, improving construction efficiency.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building construction technology, and in particular relates to a visual prefabricated wall hoisting and rapid positioning device and its construction method. Background Technology

[0002] Existing auxiliary positioning equipment for prefabricated building wall installation lacks visualization capabilities, making it difficult to align the reinforcing bars and sleeves, which increases construction difficulty and reduces the assembly speed of prefabricated building walls. For example, Chinese patent application number CN202410963647.8 discloses an auxiliary device for installing prefabricated building walls, including: a base plate with guide columns installed around its upper surface, a lifting plate vertically slidably connected to the guide columns, and "U"-shaped grooves provided on the base plate and the lifting plate; a lifting drive assembly installed on both sides of the base plate, which drives the lifting plate to move up and down; a limiting assembly installed inside the lifting plate, located on both sides of the "U"-shaped groove on the lifting plate, which is used to straighten the reinforcing bars; and a limiting drive assembly installed inside the lifting plate. However, the disadvantage of this technical solution is that it lacks a visualization function, making it difficult to align the reinforcing bars and the sleeve, increasing the construction difficulty, and reducing the assembly speed of the prefabricated building walls. Summary of the Invention

[0003] The purpose of this invention is to provide a visual prefabricated wall hoisting rapid positioning device and its construction method to solve the problems in the prior art. The specific technical solution is as follows: A visual prefabricated wall hoisting and rapid positioning device includes a display screen assembly. The display screen assembly is electrically connected to a miniature wide-angle camera via a connecting cable. The display screen assembly is fixed to the prefabricated wall via a strong nylon hook and loop fastener. The miniature wide-angle camera is located at the bottom of the prefabricated wall and displays the position images of the grouting sleeve and the reserved steel bars set at the lower end of the prefabricated wall on the display screen assembly in real time.

[0004] Furthermore, the strong nylon fastener includes a fleece nylon and a hook nylon. The front of the fleece nylon is bonded and fixed to the front of the hook nylon, the back of the fleece nylon is pasted to the prefabricated wall, and the back of the hook nylon is pasted to the back of the display screen assembly.

[0005] Furthermore, the display assembly includes a display screen, which is snapped and fixed inside the inner support frame assembly. The inner support frame assembly is slidably connected inside the outer support frame assembly. The hook-faced nylon back is attached to the back of the outer support frame assembly. The display screen is electrically connected to the miniature wide-angle camera via a connecting cable.

[0006] Furthermore, the supporting outer frame assembly includes a supporting outer frame, with the hooked nylon backing pasted onto the back of the supporting outer frame, the supporting inner frame assembly slidably connected to the supporting outer frame, an end cap inserted into the end of the supporting outer frame, an upper bracket rotatably connected to the upper end of the supporting outer frame, a barb provided at the upper end of the upper bracket, the upper bracket being fixedly connected to the leg bracket, and the lower end of the leg bracket abutting against the supporting outer frame.

[0007] Furthermore, the inner support frame assembly includes an inner support frame that slides within the outer support frame via pulleys. A screw is fixed to the upper end of the inner support frame, and the screw is threadedly connected to a nut. Support rods are fixed to both sides of the inner support frame, and each support rod has multiple sets of slots. Elastic metal sheets are inserted into the slots, and the display screen is clamped and fixed between the two elastic metal sheets. The lower end of the display screen rests against the two support screws, and the lower ends of the two support screws are threadedly connected to the inner support frame. The connecting wire passes through the lower opening provided at the lower end of the inner support frame.

[0008] Furthermore, a lower support assembly is slidably connected to the lower end of the supporting outer frame assembly. The lower support assembly includes a lower support, which is slidably connected to the lower end of the supporting outer frame. Slider blocks are slidably connected to both sides of the lower support. The sliders are fixedly connected to the insert rods. The insert rods are slidably connected to the lower support. The upper end of the insert rod is inserted into a circular hole provided in the inner frame of the support. A spring is provided between the lower end of the insert rod and the lower support.

[0009] Furthermore, a threaded bracket is fixed to the side of the lower bracket, and the threaded bracket is threadedly connected to the second screw. The lower end of the second screw is rotatably connected to the second slider, and the second slider is slidably connected to the side of the lower bracket. The lower bracket is slidably connected to the lower slide frame. A second spring is provided between the lower end of the lower slide frame and the second slider. The lower slide frame is fixedly connected to the inner slide rod. The upper end of the inner slide rod slides inside the second screw. A limit rod is fixed inside the lower slide frame. A camera adjustment assembly is slidably connected between the inner wall of the lower slide frame and the limit rod.

[0010] Furthermore, a spool assembly is rotatably connected inside the lower support. The spool assembly includes an outer disc, which is fixedly connected to the inner disc via a connecting shaft. The connecting shaft is rotatably connected to the lower support. The lower support is fixedly connected to one end of a torsion spring, and the other end of the torsion spring is fixedly connected to the inner disc. A double-position rod is provided between the inner disc and the outer disc, and the connecting wire is wound on the double-position rod. The outer discs one and two abut against the front and rear ends of the lower support, respectively.

[0011] Furthermore, the camera adjustment assembly includes a camera adjustment bracket. The upper end of the camera adjustment bracket is slidably connected between the inner wall of the lower frame and the limiting rod. The side of the camera adjustment bracket is provided with multiple sets of elastic clips. The lower end of the camera adjustment bracket is rotatably connected to a vertical adjustment frame. The vertical adjustment frame is fixedly connected to the adjustment shaft. The camera adjustment bracket is slidably connected to a positioning block. The lower end of the positioning block is inserted into a positioning groove provided in the adjustment shaft. A spring three is provided between the positioning block and the camera adjustment bracket. A horizontal adjustment frame is rotatably connected inside the vertical adjustment frame. The upper end of the horizontal adjustment frame is fixedly connected to a rotating rod. The rotating rod is slidably connected to the positioning rod. A spring five is provided between the rotating rod and the positioning rod. The lower end of the positioning rod is inserted into a positioning hole provided at the upper end of the vertical adjustment frame.

[0012] A construction method for a visual prefabricated wall hoisting rapid positioning device, applied to any of the above-mentioned visual prefabricated wall hoisting rapid positioning devices, includes the following steps: S1. Hoist the prefabricated wall structure to the preset position; S2. Install the display screen assembly on the front surface of the prefabricated wall using strong Velcro fasteners, and suspend the miniature wide-angle camera at the lower end of the prefabricated wall via a connecting cable; S3. The location images of the reserved reinforcing bars and grouting sleeves are displayed in real time on the display screen assembly via a miniature wide-angle camera; S4. Based on the image content on the display screen component, quickly position the prefabricated wall, quickly align the grouting sleeve at the bottom of the prefabricated wall with the reserved steel bar, and lower the prefabricated wall to complete the insertion of the grouting sleeve and the reserved steel bar. S5. Remove the display screen assembly from the prefabricated wall and install it on other prefabricated walls for reuse.

[0013] The advantages of this invention are: The prefabricated wall is hoisted to the preset position. A display screen assembly is installed on the front surface of the prefabricated wall using strong Velcro fasteners. A miniature wide-angle camera is suspended from the lower end of the prefabricated wall via a connecting cable. The position images of the reserved rebar and grouting sleeve are displayed on the display screen assembly in real time through the miniature wide-angle camera. Based on the image content on the display screen assembly, the prefabricated wall is quickly positioned. The grouting sleeve at the lower end of the prefabricated wall is quickly aligned with the reserved rebar. The prefabricated wall is then lowered, completing the insertion of the grouting sleeve and the reserved rebar. This visualizes the connection between the prefabricated wall and the reserved rebar, improving construction efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the positioning and assembly of the grouting sleeve and the reserved reinforcing steel bars according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the positioning and assembly of the grouting sleeve and the reserved reinforcing steel bars according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the display screen structure of the present invention; Figure 4 This is a schematic diagram of the display component structure of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the display component structure of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the display component structure of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the display component structure of the present invention. Figure 4 ; Figure 8 This is a schematic diagram of the supporting outer frame assembly structure of the present invention; Figure 9 This is a schematic diagram of the supporting inner frame component structure of the present invention; Figure 10 This is a schematic diagram of the lower support assembly structure of the present invention. Figure 1 ; Figure 11 This is a schematic diagram of the lower support assembly structure of the present invention. Figure 2 ; Figure 12 This is a schematic diagram of the lower support assembly structure of the present invention. Figure 3 ; Figure 13 This is a schematic diagram of the spool assembly structure of the present invention; Figure 14 This is a schematic diagram of the camera adjustment component structure of the present invention. Figure 1 ; Figure 15 This is a schematic diagram of the camera adjustment component structure of the present invention. Figure 2 ; Figure 16 This is a schematic diagram of the camera adjustment component structure of the present invention. Figure 3 ; Explanation of markings in the diagram: 1. Prefabricated wall assembly; 11. Grouting sleeve; 2. Reserved steel bar; 3. Display screen assembly; 31. Display screen; 32. Connecting cable; 33. Miniature wide-angle camera; 4. Support frame assembly; 41. Support frame; 42. End cap; 43. Upper bracket; 44. Leg bracket; 5. Support inner frame assembly; 51. Support inner frame; 52. Pulley; 53. Screw; 54. Nut; 55. Support rod; 56. Elastic metal sheet; 57. Lower through-hole; 58. Round hole; 59. Support screw; 6. Lower bracket assembly; 61. Lower bracket; 62. Slider; 63. Insert rod; 64. Spring. ; Screw 2 65; Threaded bracket 66; Slider 2 67; Spring 2 68; Lower slide 69; Inner slide rod 610; Limiting rod 611; Spool assembly 7; Outer disc 1 71; Connecting shaft 72; Inner disc 73; Torsion spring 74; Outer disc 2 75; Double position rod 76; Camera adjustment assembly 8; Camera adjustment bracket 81; Elastic clip 82; Vertical adjustment frame 83; Adjustment shaft 84; Positioning block 85; Spring 3 86; Horizontal adjustment frame 87; Rotating rod 88; Positioning rod 89; Spring 5 810; Positioning hole 811. Detailed Implementation

[0015] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0016] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Example 1: As Figures 1-16 As shown, a visual prefabricated wall hoisting and rapid positioning device includes a display screen assembly 3. The display screen assembly 3 is electrically connected to a miniature wide-angle camera 33 via a connecting cable 32. The display screen assembly 3 is fixed to the prefabricated wall 1 by a strong nylon hook and loop fastener. The miniature wide-angle camera 33 is located at the bottom of the prefabricated wall 1. The miniature wide-angle camera 33 displays the position images of the grouting sleeve 11 and the reserved steel bar 2 set at the lower end of the prefabricated wall 1 on the display screen assembly 3 in real time. The working principle of the above technical solution is as follows: During the hoisting process, the miniature wide-angle camera 33 is suspended directly below the bottom of the prefabricated wall 1 through the connecting line 32, continuously collecting images of the relative position of the grouting sleeve 11 and the reserved steel bar 2 on the ground, and transmitting the high-definition video stream in real time to the display screen assembly 3 fixed to the front surface of the wall by strong nylon hook and loop fasteners. Construction personnel do not need to lean out or rely on manual command. They can directly judge the plane offset and angle deviation of the sleeve and the steel bar by observing the display screen 31, and then finely adjust the hoisting action in real time so that the grouting sleeve 11 is accurately inserted into the reserved steel bar 2 along the vertical trajectory. The beneficial effects of the above technical solution are: it completely eliminates the visual blind spots and communication delays caused by manual shouting in traditional hoisting operations for "sleeve-reinforcing bar" connection, and constructs a closed-loop positioning mechanism of "real-time acquisition-intuitive feedback-precise control"; it transforms hidden works into visible processes, significantly reduces the reliance on the spatial experience and command tacit understanding of construction personnel, greatly reduces the number of positioning adjustments for a single wall section, effectively avoids quality hazards such as rebar skewing and sleeve edge breakage, and significantly improves the first-time success rate and the safety of high-altitude operations.

[0018] The display screen assembly 3 can be removed from the prefabricated wall 1 and installed on other prefabricated wall 1, with high reusability and wide application range.

[0019] Example 2: Figures 1-16 As shown, the strong nylon hook and loop fastener includes fleece nylon and hook nylon. The front of fleece nylon is bonded and fixed to the front of hook nylon, the back of fleece nylon is pasted on the prefabricated wall 1, and the back of hook nylon is pasted on the back of the display screen assembly 3. The working principle of the above technical solution is as follows: the velvet nylon and the hook-and-loop nylon are engaged by large-area micro-barbs to form a flexible bonding interface with high shear strength. Under the shaking and impact loads generated by wall hoisting, this fastening structure absorbs high-frequency vibrations by means of flexible deformation, avoiding loosening or falling off caused by rigid connection, and ensuring that the display screen component 3 maintains image stability under dynamic conditions; after construction, only force needs to be applied along the peeling direction to achieve non-destructive separation, and the adhesive does not damage the wall surface or template; The beneficial effects of the above technical solution are as follows: It eliminates the destructive fixing methods of traditional bolt drilling or strong magnetic attraction on wall finishes, and realizes a cyclical operation mode of "second-level bonding - stable follow-up - non-destructive peeling"; the large-area micro-barbs of the velvet and hook-faced nylon form a high shear strength flexible interface, which absorbs energy by material deformation under hoisting impact and high-frequency vibration conditions, preventing the display module from shifting and falling off; the device can be transferred across work surfaces without secondary drilling or residual adhesive residue, improving the reuse rate and significantly reducing the amortization cost of a single construction and the waste of auxiliary materials.

[0020] Example 3: Figures 1-16As shown, the display assembly 3 includes a display screen 31, which is snapped and fixed inside the inner support frame assembly 5. The inner support frame assembly 5 is slidably connected inside the outer support frame assembly 4. The hook-faced nylon back is pasted to the back of the outer support frame assembly 4. The display screen 31 is electrically connected to the miniature wide-angle camera 33 through the connecting cable 32. The working principle of the above technical solution is as follows: For short-sized walls, the display screen 31 is not installed in the inner frame component 5. The display screen 31 can be directly fixed to the prefabricated wall 1 by strong nylon hook and loop fasteners. The connecting line 32 can be bent, stretched and shaped in real time, ensuring that the miniature wide-angle camera 33 can be quickly adjusted to the best shooting angle to meet the needs of prefabricated walls 1 of different heights and sizes. For long or multi-sleeve walls, the display screen 31 is snapped and fixed inside the inner support frame assembly 5, and the outer support frame assembly 4 is pasted on the prefabricated wall 1. Multiple inner support frame assemblies 5 can slide inside the outer support frame assembly 4, and multiple display screens 31 corresponding to the multiple inner support frame assemblies 5 can be moved freely. The multiple display screens 31 take pictures of the grouting sleeves 11 of the longer prefabricated wall 1 through multiple miniature wide-angle cameras 33, thereby meeting the visualization needs of prefabricated walls 1 of different lengths. The beneficial effects of the above technical solution are: breaking through the limitations of traditional single-point fixed observation, realizing the spatial layout reconstruction of "multi-camera distributed acquisition and single-view centralized monitoring"; through the combination of sliding frame guidance and damping, operators can ergonomically slide multiple display screens to the optimal viewing height, avoiding frequent looking up, running across areas, or fatigue from upward angles; for ultra-long or multi-tube walls, it achieves full-section synchronous visual alignment, significantly improving human-computer interaction efficiency and greatly optimizing the assembly rhythm and full-section insertion accuracy of large-span components.

[0021] Example 4: Figures 1-16 As shown, the outer support frame assembly 4 includes an outer support frame 41, with a hook-faced nylon backing pasted onto the back of the outer support frame 41, an inner support frame assembly 5 slidably connected to the outer support frame 41, an end cap 42 inserted into the end of the outer support frame 41, an upper bracket 43 rotatably connected to the upper end of the outer support frame 41, a barb provided at the upper end of the upper bracket 43, and the upper bracket 43 fixedly connected to the leg bracket 44, with the lower end of the leg bracket 44 abutting against the outer support frame 41; The working principle of the above technical solution is as follows: the outer support frame 41 serves as a standard carrier, and the end cap 42 inserted at its end forms a limiting stop. Combined with the inner sliding groove, it allows for the insertion of any number of inner support frame components 5 as needed, achieving non-destructive splicing of the device length. The key improvement lies in the variable triangular support mechanism formed by the upper bracket 43 and the leg frame 44: when the upper bracket 43 is flipped to a vertical position, its top hook hooks onto the upper edge of the wall, and the bottom end of the leg frame 44 presses against the outer wall of the outer support frame 41, forming a mechanical closed loop of "upper suspension - middle support - lower support". The beneficial effects of the above technical solution are as follows: Constructing a mechanically self-stabilizing closed loop of "upper suspension - middle sliding guide - lower support" effectively transfers the overturning moment generated by the self-weight of the display module and the swaying during hoisting to the wall body, significantly reducing the shear load on a single bonding interface; the end cap plug-in design enables non-destructive modular splicing of the device length, and, in conjunction with the variable triangular support mechanism formed by the upper bracket hook and the leg frame pressing, provides redundant fall protection; ensuring attitude stability and wind vibration resistance under long cantilever and large eccentric load conditions, adapting to the dynamic environment of complex construction sites.

[0022] Example 5: Figures 1-16 As shown, the inner support frame assembly 5 includes an inner support frame 51, which slides within the outer support frame 41 via pulleys 52. A screw 53 is fixed to the upper end of the inner support frame 51, and the screw 53 is threadedly connected to a nut 54. Support rods 55 are fixed to both sides of the inner support frame 51. Each support rod 55 has multiple sets of slots, and elastic metal sheets 56 are inserted into the slots. The display screen 31 is clamped and fixed between the two elastic metal sheets 56. The lower end of the display screen 31 abuts against two support screws 59, and the lower ends of the two support screws 59 are threadedly connected to the inner support frame 51. The connecting wire 32 passes through the lower through-hole 57 provided at the lower end of the inner support frame 51. The working principle of the above technical solution is as follows: The inner support frame 51 moves smoothly within a low-friction guide rail via pulleys 52, facilitating rapid positioning; after the display screen 31 is placed, the elastic metal sheets 56 in the slots of the side support rods 55 generate radial clamping force using material elasticity, adapting to screens of different thicknesses and sizes, and avoiding stress concentration caused by rigid clamping; the bottom double support screws 59 provide upward linear support force through threaded screwing, forming a three-dimensional fixing network of "lateral coverage + bottom support" with the elastic metal sheets. After positioning, the top nut 54 is tightened so that its end face presses against the outer support frame 41, generating axial preload, instantly converting the sliding freedom into a fixed constraint. The connecting cable 32 is neatly led out through the lower through-hole 57, preventing cable interference and sliding. The beneficial effects of the above technical solution are as follows: The three-dimensional adaptive clamping network of "lateral elastic wrapping + bottom linear support" is compatible with displays of different thicknesses and specifications and avoids screen breakage caused by rigid stress concentration; the screw-nut axial pre-tightening mechanism realizes the instantaneous conversion of sliding freedom to fixed constraint, completely eliminating screen jitter and position drift caused by hoisting vibration; the neat wiring design of the under-hole eliminates cable interference with the movement of the sliding frame, taking into account the flexibility of quick screen replacement and the structural reliability under complex working conditions, and extending the service life of core display components.

[0023] Example 6: Figures 1-16As shown, the lower end of the supporting outer frame assembly 4 is slidably connected to the lower support assembly 6. The lower support assembly 6 includes a lower support 61, which is slidably connected to the lower end of the supporting outer frame 41. Slider 62 is slidably connected to both sides of the lower support 61. The slider 62 is fixedly connected to the insertion rod 63. The insertion rod 63 is slidably connected to the lower support 61. The upper end of the insertion rod 63 is inserted into the round hole 58 provided in the inner support frame 51. A spring 64 is provided between the lower end of the insertion rod 63 and the lower support 61. A threaded bracket 66 is fixed to the side of the lower bracket 61. The threaded bracket 66 is threadedly connected to the second screw 65. The lower end of the second screw 65 is rotatably connected to the second slider 67. The second slider 67 is slidably connected to the side of the lower bracket 61. The lower bracket 61 is slidably connected to the lower slide frame 69. A second spring 68 is provided between the lower end of the lower slide frame 69 and the second slider 67. The lower slide frame 69 is fixedly connected to the inner slide rod 610. The upper end of the inner slide rod 610 slides inside the second screw 65. A limit rod 611 is fixed inside the lower slide frame 69. A camera adjustment component 8 is slidably connected between the inner wall of the lower slide frame 69 and the limit rod 611. The working principle of the above technical solution is as follows: Remove the end cap 42, slide the lower bracket 61 into the outer support frame 41, the number of lower brackets 61 is the same as the inner support frame 51, press down the slider 62, drive the insertion rod 63 to move down, drive the spring 64 to be compressed, drive the upper end of the insertion rod 63 to retract to the upper end of the lower bracket 61, slide the lower bracket 61 on the outer support frame 41, so that the lower bracket 61 moves to the bottom of the inner support frame 51, release the pressure restriction on the slider 62, under the elastic force of the spring 64, drive the slider 62 and the insertion rod 63 to move up, drive the upper end of the insertion rod 63 to insert into the round hole 58, thereby fixing the inner support frame 51 and the lower bracket 61. When the inner support frame 51 moves, the lower bracket 61, the camera adjustment component 8 and the miniature wide-angle camera 33 move with the inner support frame 51, that is, the display screen 31 and the miniature wide-angle camera 33 move simultaneously in a vertical state, which is suitable for the shorter prefabricated wall 1. When the prefabricated wall 1 is long, multiple miniature wide-angle cameras 33 need to be distributed to facilitate image acquisition, while multiple displays 31 need to be concentrated for easy observation by the operator. Pressing down on the slider 62 moves the insert rod 63 downward, compressing the spring 64 and causing the upper end of the insert rod 63 to retract to the upper end of the lower bracket 61. The lower bracket 61 slides on the outer support frame 41, allowing it to move away from directly under the inner support frame 51. Releasing the pressure on the slider 62, the slider 62 and insert rod 63 move upward under the elastic force of the spring 64, causing the upper end of the insert rod 63 to extend out of the upper end of the lower bracket 61, thus separating the inner support frame 51 from the lower bracket 61. Moving the lower bracket 61 moves the camera adjustment component 8, allowing multiple miniature wide-angle cameras 33 to be distributed at the lower end of the prefabricated wall 1. Moving multiple inner support frames 51 concentrates multiple displays 31 in the middle of the prefabricated wall 1, facilitating large-area image acquisition and concentrated observation of visual images. Rotate the upper bracket 43 to a vertical position, with the lower end of the leg bracket 44 abutting against the outer support frame 41. The barb at the upper end of the upper bracket 43 hooks onto the upper end of the prefabricated wall 1. Pull down the lower slide bracket 69, causing the lower slide bracket 69 to slide against the lower bracket 61. The second spring 68 is stretched, causing the inner slide rod 610 and the second screw 65 to slide together. The lower end of the lower slide bracket 69 hooks onto the lower end of the prefabricated wall 1, further increasing the firmness of the outer support frame assembly 4 and the lower bracket assembly 6 fixed to the prefabricated wall 1, thus ensuring the stability of the display screen 31. Rotating screw 65 causes slider 67 to rise or fall on the side of the lower bracket 61. Through spring 68, it causes the lower slide 69 to rise or fall, thereby changing the position of the lower slide 69 to fit the clamping and fixing of the large and small assembled wall 1. The beneficial effects of the above technical solution are as follows: The innovative design of the "spring quick-plug - press decoupling" switching mechanism enables free switching between the linkage and decoupling of the display unit and the acquisition unit, perfectly adapting to the differentiated construction needs of short wall synchronous tracking and long wall distributed array; In conjunction with the screw-spring elastic compensation clamping system, it adapts to walls of different thicknesses and forms a rigid frame of upper and lower support with the upper bracket, completely eliminating the relative displacement caused by hoisting off-center load and vibration; It ensures the absolute stability of the image acquisition reference, and controls the multi-camera collaborative positioning error within ±2mm.

[0024] Example 7: Figures 1-16 As shown, a spool assembly 7 is rotatably connected inside the lower support 61. The spool assembly 7 includes an outer disc 71, which is fixedly connected to an inner disc 73 via a connecting shaft 72. The connecting shaft 72 is rotatably connected to the lower support 61. The lower support 61 is fixedly connected to one end of a torsion spring 74, and the other end of the torsion spring 74 is fixedly connected to the inner disc 73. A double-position rod 76 is provided between the inner disc 73 and the outer disc 75. The connecting wire 32 is wound on the double-position rod 76. The outer disc 71 and the outer disc 75 respectively abut against the front and rear ends of the lower support 61. The working principle of the above technical solution is as follows: When the camera adjustment component 8 moves the miniature wide-angle camera 33 downwards, the connecting cable 32 is pulled outwards by gravity, driving the dual-position lever 76 to rotate the inner disc 73, outer discs 71 / 75, and connecting shaft 72 synchronously, causing the torsion spring 74 to store energy and deform. When the camera rises or retracts, the torsion spring 74 releases the stored elastic potential energy, driving the winding reel to rotate in the opposite direction, thus achieving automatic tightening of the connecting cable. This mechanism, through the constant torque output characteristic of the torsion spring, maintains a moderate tension in the cable throughout the entire movement of the camera, avoiding dragging and wear, knotting and obstruction caused by excessively long cables, and preventing signal transmission interruption or interface loosening due to over-tightening. The cable routing design of the dual-position lever 76 further ensures neat cable stacking, achieving dynamic cable management with "moving lines following and easy retraction," ensuring the continuity and stability of image transmission. The beneficial effects of the above technical solution are as follows: A follow-up constant tension cable management system is constructed, and the torsion spring energy storage-release mechanism maintains appropriate tension in the connecting cable throughout the entire movement of the camera, completely solving pain points such as cable dragging and wear, knotting and obstruction, and excessively tight pull-out interfaces; the double-pole layered cable arrangement design ensures neat and orderly cable retraction and extension trajectories, achieving "move-through, intervention-free management"; it ensures the continuity and signal integrity of high-definition video stream transmission, reducing the frequency of on-site cable maintenance and downtime due to faults.

[0025] Example 8: As Figures 1-16 As shown, the camera adjustment assembly 8 includes a camera adjustment bracket 81. The upper end of the camera adjustment bracket 81 is slidably connected between the inner wall of the lower slide 69 and the limiting rod 611. The side of the camera adjustment bracket 81 is provided with multiple sets of elastic clips 82. The lower end of the camera adjustment bracket 81 is rotatably connected to a vertical adjustment frame 83. The vertical adjustment frame 83 is fixedly connected to the adjustment shaft 84. The camera adjustment bracket 81 is slidably connected to a positioning block 85. The lower end of the positioning block 85 is inserted into the positioning groove provided in the adjustment shaft 84. A spring 86 is provided between the positioning block 85 and the camera adjustment bracket 81. A horizontal adjustment frame 87 is rotatably connected inside the vertical adjustment frame 83. The upper end of the horizontal adjustment frame 87 is fixedly connected to a rotating rod 88. The rotating rod 88 is slidably connected to a positioning rod 89. A spring 810 is provided between the rotating rod 88 and the positioning rod 89. The lower end of the positioning rod 89 is inserted into the positioning hole 811 provided at the upper end of the vertical adjustment frame 83. The working principle of the above technical solution is as follows: the upper bracket 43 is rotated to a vertical position, the lower end of the leg bracket 44 abuts against the outer support frame 41, the barb at the upper end of the upper bracket 43 hooks onto the upper end of the prefabricated wall 1, the lower slide bracket 69 is pulled down, the lower end of the lower slide bracket 69 hooks onto the lower end of the prefabricated wall 1, the upper end of the camera adjustment bracket 81 slides inside the lower slide bracket 69, the camera adjustment bracket 81 is engaged with the edge of the lower slide bracket 69 by the elastic clip 82, and by changing different elastic clips 82 to engage with the edge of the lower slide bracket 69, the vertical height of the miniature wide-angle camera 33 is changed; Pulling up the positioning block 85 compresses the spring 86, causing the lower end of the positioning block 85 to separate from the adjustment shaft 84. Rotating the vertical adjustment frame 83 can change the shooting angle of the miniature wide-angle camera 33 in the vertical direction. Pull up the positioning rod 89, which causes the spring 810 to be stretched. The lower end of the positioning rod 89 is pulled out from the positioning hole 811. Rotate the rotating rod 88, which causes the horizontal adjustment frame 87 to rotate, thereby changing the shooting angle of the miniature wide-angle camera 33 in the horizontal direction. When the visual prefabricated wall hoisting quick positioning device is not in use, pull up the positioning block 85, which will cause the spring 86 to be compressed, causing the lower end of the positioning block 85 to separate from the adjustment shaft 84. Rotate the vertical adjustment frame 83 to rotate the mini wide-angle camera 33 to a vertical position, separate the elastic clip 82 from the edge of the sliding frame 69, push the camera adjustment bracket 81 upward, and the upper end of the camera adjustment bracket 81 will slide upward in the sliding frame 69, causing the entire camera adjustment assembly 8 and the mini wide-angle camera 33 to move into the sliding frame 69, thereby completing the storage of the mini wide-angle camera 33. The upper bracket 43 and the supporting outer frame 41 rotate 180 degrees to reduce the space occupied. The beneficial effects of the above technical solution are as follows: The multi-degree-of-freedom precision attitude adjustment mechanism of "elastic unlocking - manual attitude adjustment - spring self-locking" is adopted. After the pitch / yaw angle is adjusted, rigid locking is achieved to ensure zero drift of the shooting reference under vibration conditions. In the idle state, each adjustment frame is unlocked and folded in sequence, and the camera assembly is pushed into the slide frame cavity for storage. With the support bracket flipped and folded, the overall outline and volume of the device are reduced, which greatly facilitates on-site turnover, transportation, warehousing management and rapid deployment, and improves the level of equipment management.

[0026] Example 9: Figures 1-16 As shown, a construction method for a visual prefabricated wall hoisting rapid positioning device, applied to any of the above-mentioned visual prefabricated wall hoisting rapid positioning devices, includes the following steps: S1. Hoist the prefabricated wall unit 1 to the preset position; S2. The display screen assembly 3 is installed on the front surface of the prefabricated wall 1 using strong nylon fasteners, and the miniature wide-angle camera 33 is suspended at the lower end of the prefabricated wall 1 via a connecting line 32; S3. The position images of the reserved steel bar 2 and the grouting sleeve 11 are displayed in real time on the display screen assembly 3 via the miniature wide-angle camera 33; S4. Based on the image content on the display screen component 3, quickly position the prefabricated wall 1, quickly align the grouting sleeve 11 at the lower end of the prefabricated wall 1 with the reserved steel bar 2, and lower the prefabricated wall 1 to complete the insertion of the grouting sleeve 11 and the reserved steel bar 2. S5. Remove the display screen assembly 3 from the prefabricated wall 1. The display screen assembly 3 can be installed on other prefabricated wall 1 for reuse. The working principle of the above technical solution is as follows: S1-S2 complete the rapid coupling and image link establishment between the device and the wall; S3 uses real-time video stream to replace traditional manual inspection, transforming the concealed project (sleeve-rebar connection) into a visual process; S4, based on the pixel-level deviation feedback from the display screen, directs the crane to perform micro-motion correction, achieving "millimeter-level" precise insertion and eliminating rebar misalignment or sleeve damage caused by forced placement; S5, after the operation is completed, the device is quickly decoupled and transferred to the next work surface without damage. This method transforms the traditional experience-based construction relying on "blind hoisting + multiple trial and error" into a standardized process of "visual prediction - one-time precise connection," significantly shortening the time for hoisting and positioning a single wall section. At the same time, the modular reuse of the device significantly reduces the construction cost per unit, providing a replicable and scalable process paradigm for the large-scale and assembly-line construction of prefabricated buildings. The beneficial effects of the above technical solution are as follows: it reconstructs the traditional experience-based extensive operation that relies on "blind hoisting trial and error + manual inspection" into a standardized process of "visual prediction - data feedback - one-time precise docking"; the positioning time of a single process is shortened, and the structural damage and rework costs caused by forced placement are completely eliminated; the modular reuse of the device significantly reduces the construction cost of a single piece, and provides a replicable, quantifiable and scalable process paradigm for the large-scale and assembly-line construction of prefabricated buildings, which is in line with the development trend of building industrialization.

[0027] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A visual prefabricated wall hoisting and rapid positioning device, characterized in that, The device includes a display screen assembly (3), which is electrically connected to a miniature wide-angle camera (33) via a connecting cable (32). The display screen assembly (3) is fixed to the prefabricated wall (1) by a strong nylon hook and loop fastener. The miniature wide-angle camera (33) is located at the bottom of the prefabricated wall (1). The miniature wide-angle camera (33) displays the position images of the grouting sleeve (11) and the reserved steel bar (2) set at the lower end of the prefabricated wall (1) on the display screen assembly (3) in real time.

2. The visual prefabricated wall hoisting rapid positioning device according to claim 1, characterized in that, The strong nylon fastener includes a fleece nylon and a hook nylon. The front of the fleece nylon is bonded and fixed to the front of the hook nylon, and the back of the fleece nylon is pasted on the prefabricated wall (1). The back of the hook nylon is pasted on the back of the display screen assembly (3).

3. The visual prefabricated wall hoisting rapid positioning device according to claim 2, characterized in that, The display assembly (3) includes a display screen (31), which is snapped and fixed inside the inner support frame assembly (5). The inner support frame assembly (5) is slidably connected inside the outer support frame assembly (4). The hook-faced nylon back is pasted on the back of the outer support frame assembly (4). The display screen (31) is electrically connected to the miniature wide-angle camera (33) through a connecting cable (32).

4. The visual prefabricated wall hoisting rapid positioning device according to claim 3, characterized in that, The outer support frame assembly (4) includes an outer support frame (41), with the hooked nylon backing pasted on the back of the outer support frame (41). The inner support frame assembly (5) is slidably connected to the outer support frame (41). An end cap (42) is inserted into the end of the outer support frame (41). An upper bracket (43) is rotatably connected to the upper end of the outer support frame (41). The upper end of the upper bracket (43) is provided with a barb. The upper bracket (43) is fixedly connected to the leg bracket (44). The lower end of the leg bracket (44) rests against the outer support frame (41).

5. The visual prefabricated wall hoisting rapid positioning device according to claim 4, characterized in that, The inner support frame assembly (5) includes an inner support frame (51), which slides within the outer support frame (41) via pulleys (52). A screw (53) is fixed to the upper end of the inner support frame (51), and the screw (53) is threadedly connected to a nut (54). Support rods (55) are fixed to both sides of the inner support frame (51), and multiple sets of slots are provided on each of the two support rods (55). Elastic metal sheets (56) are inserted into the slots. The display screen (31) is clamped and fixed between the two elastic metal sheets (56). The lower end of the display screen (31) rests against the two support screws (59), and the lower ends of the two support screws (59) are threadedly connected to the inner support frame (51). The connecting wire (32) passes through the lower opening (57) provided at the lower end of the inner support frame (51).

6. The visual prefabricated wall hoisting rapid positioning device according to claim 5, characterized in that, The lower end of the supporting outer frame assembly (4) is slidably connected to the lower bracket assembly (6). The lower bracket assembly (6) includes a lower bracket (61). The lower bracket (61) is slidably connected to the lower end of the supporting outer frame (41). Slider blocks (62) are slidably connected to both sides of the lower bracket (61). The sliders (62) are fixedly connected to the insert rod (63). The insert rod (63) is slidably connected to the lower bracket (61). The upper end of the insert rod (63) is inserted into the round hole (58) provided in the inner supporting frame (51). A spring (64) is provided between the lower end of the insert rod (63) and the lower bracket (61).

7. The visual prefabricated wall hoisting rapid positioning device according to claim 6, characterized in that, The lower bracket (61) is fixed with a threaded bracket (66) on its side. The threaded bracket (66) is threadedly connected to the second screw (65). The lower end of the second screw (65) is rotatably connected to the second slider (67). The second slider (67) is slidably connected to the side of the lower bracket (61). The lower bracket (61) is slidably connected to the lower slide frame (69). The lower end of the lower slide frame (69) is provided with a second spring (68) between the second slider (67) and the lower slide frame (69). The lower slide frame (69) is fixedly connected to the inner slide rod (610). The upper end of the inner slide rod (610) slides in the second screw (65). The lower slide frame (69) is fixed with a limit rod (611). The inner wall of the lower slide frame (69) is slidably connected to the limit rod (611). A camera adjustment assembly (8) is slidably connected between the limit rod (611) and the inner wall of the lower slide frame (69).

8. The visual prefabricated wall hoisting rapid positioning device according to claim 7, characterized in that, The lower support (61) is rotatably connected to a spool assembly (7). The spool assembly (7) includes an outer disc (71), which is fixedly connected to an inner disc (73) via a connecting shaft (72). The connecting shaft (72) is rotatably connected to the lower support (61). The lower support (61) is fixedly connected to one end of a torsion spring (74), and the other end of the torsion spring (74) is fixedly connected to the inner disc (73). A double-position rod (76) is provided between the inner disc (73) and the outer disc (75). The connecting line (32) is wound around the double-position rod (76). The outer disc (71) and the outer disc (75) abut against the front and rear ends of the lower support (61) respectively.

9. A visual prefabricated wall hoisting rapid positioning device according to claim 8, characterized in that, The camera adjustment assembly (8) includes a camera adjustment bracket (81). The upper end of the camera adjustment bracket (81) is slidably connected between the inner wall of the lower slide (69) and the limiting rod (611). Multiple sets of elastic clips (82) are provided on the side of the camera adjustment bracket (81). A vertical adjustment frame (83) is rotatably connected to the lower end of the camera adjustment bracket (81). The vertical adjustment frame (83) is fixedly connected to the adjustment shaft (84). The camera adjustment bracket (81) is slidably connected to the positioning block (85). The lower end of the positioning block (85) is inserted into the... In the positioning groove provided in the adjusting shaft (84), a spring three (86) is provided between the positioning block (85) and the camera adjusting bracket (81). A horizontal adjusting frame (87) is rotatably connected in the vertical adjusting frame (83). The upper end of the horizontal adjusting frame (87) is fixedly connected to the rotating rod (88). The rotating rod (88) is slidably connected to the positioning rod (89). A spring five (810) is provided between the rotating rod (88) and the positioning rod (89). The lower end of the positioning rod (89) is inserted into the positioning hole (811) provided in the upper end of the vertical adjusting frame (83).

10. A construction method for a visual prefabricated wall hoisting rapid positioning device, applied to the visual prefabricated wall hoisting rapid positioning device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Hoist the prefabricated wall (1) to the preset position; S2. Install the display screen assembly (3) on the front surface of the prefabricated wall (1) using strong nylon fasteners, and suspend the miniature wide-angle camera (33) at the lower end of the prefabricated wall (1) via connecting wire (32); S3. The position images of the reserved steel bars (2) and the grouting sleeve (11) are displayed in real time on the display screen assembly (3) through a miniature wide-angle camera (33); S4. Based on the image content on the display panel (3), quickly position the prefabricated wall (1), quickly align the grouting sleeve (11) at the bottom of the prefabricated wall (1) with the reserved steel bar (2), and the prefabricated wall (1) falls down to complete the insertion of the grouting sleeve (11) and the reserved steel bar (2). S5. Remove the display assembly (3) from the prefabricated wall (1). The display assembly (3) can be installed on other prefabricated walls (1) for reuse.

Images