Construction support electric scaffolding

Abstract

This invention relates to the field of building construction and discloses an electric scaffold for building repair, comprising two parallel front lattice columns (1), with a rear lattice column spaced behind each front lattice column. Support feet (6) are installed at the bottom of both the front and rear lattice columns, and both are provided with a lifting truss that can be driven by a lifting drive module (10) to move back and forth in the vertical direction. A construction operation platform (3) is provided on one edge of the lifting truss on one side of the two front lattice columns. A construction telescopic platform (4) with adjustable length is provided on the construction operation platform to allow the construction telescopic platform to extend forward to different lengths beyond the front lattice columns. Between the front and rear lattice columns, a reinforcing beam (11), a horizontal support plate (20), and a counterweight box (22) are provided below to form a bottom stable platform. A top horizontal beam (12) and a top longitudinal beam (13) are provided at the top to form a tetrahedral non-connected wall independent stable structural support.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and more specifically to an electric scaffolding for structural support in building repair. Background Technology

[0002] In the construction process, scaffolding is generally used for sub-projects such as decoration and renovation, exterior wall masonry, exterior wall plastering, window installation, and curtain wall installation. The main types of scaffolding products used are coupler-type, ring-lock, disc-lock, and electric bridge-type scaffolding. However, in complex engineering environments, especially in urban renewal and renovation of old residential areas, traditional scaffolding faces the following technical shortcomings: 1. Traditional scaffolding, being attached to the building itself, cannot completely solve the widespread problem of haphazard construction and serious encroachment on the exterior facade of old buildings. Various awnings, security grilles, barbed wire, clothes racks, intersecting trees in residential areas, and crisscrossing power lines create blind spots and safety hazards in scaffolding operations.

[0003] 2. Traditional scaffolding is attached to the building itself, and its erection has problems such as narrow space such as step distance and span, large amount of materials used, high erection difficulty, difficulty in material transportation, and low labor efficiency.

[0004] 3. The existing electric bridge scaffolding structure is attached to the building body, with expansion bolts installed every 2-3 meters to anchor the building wall ties and fix its own mast. The walls of old residential areas cannot provide a working surface and sufficient load-bearing capacity, which creates potential safety hazards.

[0005] 4. The existing electric bridge scaffolding structure is very close to the wall, which cannot adapt to the various situations of privately enclosed balconies and unauthorized constructions occupying space in old residential areas. The work surface needs to demolish some existing structures.

[0006] 5. Existing scaffolding is insufficient to meet the requirements of operations under complex facade conditions, and is inadequate for higher-level requirements such as dense pedestrian traffic, non-interference between work and living, and prevention of falling objects from heights. Summary of the Invention

[0007] This invention addresses the aforementioned problems of existing scaffolding systems and overcomes the shortcomings of current scaffolding construction technology. It provides a structurally supported electric scaffolding for building repair, typically not exceeding 30 meters in length. This scaffolding features an independent and stable tetrahedral lattice column structure, enabling it to provide a construction platform solely through its own stability without wall ties. The telescopic platform can adapt to the distance between the building facade and the operating platform, extending the working distance to 5-10 meters to accommodate various complex facade conditions. Furthermore, the front lattice columns of this scaffolding can be positioned far from the wall, adapting to various space occupancy situations, and is suitable for building renovation, energy-saving renovations, and enclosure structure modifications. The scaffolding also offers rapid assembly and disassembly, with its prefabricated standard sections allowing for quick assembly and disassembly, saving significant labor and economic costs.

[0008] To achieve the above objectives, the present invention provides an electric scaffold for building repair, comprising two parallel front lattice columns, with a rear lattice column spaced apart behind each front lattice column, and support feet installed at the bottom ends of both the front and rear lattice columns; a lifting truss, driven by a lifting drive module, is provided on both the front and rear lattice columns; a construction operation platform is provided on the edge of the lifting truss located on one side of the two front lattice columns, and an adjustable construction telescopic platform is provided on the construction operation platform to allow the construction telescopic platform to extend forward to different lengths beyond the front lattice columns; the top ends of the two front and two rear lattice columns are fixedly connected by a top frame, and the support feet have height adjustment devices.

[0009] Preferably, the horizontal surface of the construction telescopic platform has multiple elongated holes extending in the front-to-back direction, and the horizontal surface of the construction operation platform has a circular hole. The circular hole is fastened to any position along the length of the elongated hole by locking bolts. The construction telescopic platform is divided into single or multiple pieces of different lengths to adapt to different complex shapes of the working surface. The telescopic platform can also be set with relevant angles.

[0010] Preferably, the front edge and both ends of the construction telescopic platform are provided with a first guardrail, and the rear edge and both ends of the construction operation platform are provided with a second guardrail.

[0011] Preferably, on the side of the front lattice column closest to the building, and when the working height exceeds a preset height, the front lattice column is provided with a wall tie that is fixed to the building; the front lattice column and the rear lattice column are connected by an oblique truss structure.

[0012] Preferably, the lifting truss includes a lifting crossbeam disposed between the two front lattice columns and the two rear lattice columns, and a lifting longitudinal beam disposed between the front lattice columns and the rear lattice columns. The lifting drive module, which can be lifted and moved, is slidably sleeved on both the front lattice columns and the rear lattice columns. The ends of the lifting crossbeam and the lifting longitudinal beam are fixed on the outer surface of the lifting drive module.

[0013] Preferably, the lifting drive module includes a lifting body sleeved on the outer periphery of the front lattice column or the rear lattice column. The lifting body is provided with rollers that are rolled and connected to the front lattice column or the rear lattice column. The lifting body is driven by a lifting drive device to reciprocate in the vertical direction. The lifting drive device is equipped with an electrical control and intelligent monitoring safety system. The electrical control and intelligent monitoring safety system includes a displacement sensor, a pressure sensor, a tilt sensor, a monitoring camera, a safety limit device, and a brake to achieve overall synchronous control of the platform.

[0014] Preferably, the lifting drive device includes a drive motor mounted on the support base, the output shaft of the drive motor is equipped with a drive wheel, the drive wheel is a drive sprocket, the drive sprocket is connected to the driven sprocket at the top of the front lattice column or the rear lattice column through a transmission chain, and the lifting body is installed at any position on the transmission chain.

[0015] Preferably, the lifting drive device includes at least one drive motor installed inside the lifting body, and the output shaft of the drive motor is equipped with a drive wheel, which is a gear, and the gear meshes with a rack installed vertically on the front lattice column or the rear lattice column for transmission.

[0016] Preferably, the support base includes a base frame and a central support column passing through the center of the base frame. The lower end of the central support column is provided with a spherical hinge joint, which is rotatably connected to the hinge base plate. At least two wheels are installed on the base frame. Multiple height adjustment devices are also provided on the outer periphery of the base frame.

[0017] Preferably, the height adjustment device includes an outer sleeve fixed to the outer periphery of the foot frame, a telescopic support leg slidably connected inside the outer sleeve, a support leg base plate fixed to the lower end of the telescopic support leg, a screw threaded to the top of the telescopic support leg, the upper end of the screw rotatably connected to the top of the outer sleeve, and a driven bevel gear fixed to the top of the screw. A rotating rod is laterally rotatably connected to the top of the outer sleeve, and a driving bevel gear meshing with the driven bevel gear is mounted on the rotating rod. This structure can also be equipped with a hydraulic structure and connected to an electric control system.

[0018] Preferably, it further includes a reinforcing beam connecting the front lattice column and the rear lattice column, a horizontally extending horizontal support plate is provided between the two reinforcing beams, and an inclined support plate is provided on the reinforcing beam in the direction of the outer side of the width edge of the horizontal support plate.

[0019] Preferably, a counterweight box is connected to the bottom of the horizontal support plate, and the counterweight box contains multiple layers of stacked counterweight blocks.

[0020] Preferably, a flexible protective net can be hung below the lifting crossbeam and the lifting longitudinal beam. The top frame includes a top crossbeam connecting the tops of the two front lattice columns, a top crossbeam connecting the tops of the two rear lattice columns, and a top longitudinal beam connecting the two sets of front lattice columns and the rear lattice columns. A flexible protective net can be hung below the top crossbeam and the top longitudinal beam.

[0021] The above technical solution, through a four-point support system consisting of two front lattice columns and two rear lattice columns, effectively improves the stability of the scaffolding during building facade maintenance, avoiding the need for anchoring in existing scaffolding systems that could damage the building facade, and enhancing the adaptability and protection of the building itself. By setting up a retractable construction platform, the width of the construction platform can be expanded according to actual needs, meeting a wider range of operational requirements and effectively preventing interference between existing scaffolding systems and existing structures.

[0022] In some preferred embodiments of the present invention, the extension length and angle of the construction expansion platform are infinitely adjustable by means of bolt connection between the elongated hole and the round hole on the construction expansion platform.

[0023] In some preferred embodiments of the present invention, by setting up a first guardrail and a second guardrail, and by adding dense railings and metal mesh to the guardrails, the safety of personnel operation is improved.

[0024] In some preferred embodiments of the present invention, the integrated structure of the lifting truss force-bearing construction operation platform design enables the construction operation platform and the construction telescopic platform to be stably maintained on the horizontal plane during lifting operations, which significantly improves the stability of the lifting truss reciprocating movement in the vertical direction.

[0025] In some preferred embodiments of the present invention, by setting inclined support plates and horizontal support plates at the bottom, it is similar to raising the road, which facilitates pedestrians and vehicles to pass quickly under the scaffolding, effectively utilizes the internal space of the scaffolding, and avoids the negative impact on daily life and traffic congestion caused by building repairs.

[0026] In some preferred embodiments of the present invention, by setting up counterweight boxes, especially by increasing the counterweight design on the opposite side of the building, the stability of the scaffolding during use is significantly improved, the usage requirements for different load-bearing weights are met, the safety of personnel is significantly improved, and the deviation of the scaffolding due to instability of the center of gravity is avoided.

[0027] In some preferred embodiments of the present invention, by setting up a lifting crossbeam and a flexible protective net hanging below the lifting longitudinal beam, and a top crossbeam and a flexible protective net hanging below the top longitudinal beam, a fully enclosed protection is achieved to prevent any falling objects from heights in the construction area. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of an electric scaffolding for building repair according to an embodiment of the present invention. Figure 2 This is a front view of an electric scaffolding structure for building repair according to an embodiment of the present invention; Figure 3 This is a top view of an electric scaffolding structure for building repair according to an embodiment of the present invention; Figure 4 This is a side view of an electric scaffold for building repair according to an embodiment of the present invention; Figure 5 This is a connection structure diagram of a construction telescopic platform for a building repair structural support electric scaffold according to an embodiment of the present invention. Figure 6 This is a structural diagram of a drive module for a building repair structure-supported electric scaffold according to one embodiment of the present invention; Figure 7 This is a front view structural diagram of a chain drive method for supporting an electric scaffold for building repair according to an embodiment of the present invention. Figure 8 This is an overall structural diagram of the support base of an electric scaffold for building repair according to an embodiment of the present invention. Figure 9 This is a partial structural diagram of the support legs of an electric scaffold for building repair, according to one embodiment of the present invention. Figure 10 This is a perspective view of a building repair structure supporting an electric scaffold with a counterweight structure, according to one embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures 1-Front lattice column; 2-Rear lattice column; 3-Construction operation platform; 4-Construction telescopic platform; 5-First guardrail; 6-Supporting feet; 7-Second guardrail; 8-Lifting crossbeam; 9-Lifting longitudinal beam; 10-Lifting drive module; 11-Reinforcing beam; 12-Top crossbeam; 13-Top longitudinal beam; 14-Elongated hole; 15-Locking bolt; 16-Drive motor; 17-Lifting body; 18-Roller; 19-Drive wheel; 20-Horizontal support plate; 21-Inclined support plate; 22-Counterweight box; 23-Foot frame; 24-Spherical hinge joint; 25-Hinged base plate; 26-Walking wheel; 27-Outer leg base plate; 28-Rotating rod; 29-Driven bevel gear; 30-Driven bevel gear; 31-Screw; 32-Outer sleeve; 33-Telescopic outer leg; 34-Driven sprocket; 35-Central support column. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] See Figures 1 to 6 As shown, an electric scaffold for building repair according to the present invention includes two front lattice columns 1 arranged side by side, and a rear lattice column 2 spaced apart on the rear side of each front lattice column 1. Support feet 6 are respectively installed at the bottom ends of the front lattice column 1 and the rear lattice column 2. A lifting truss that can be driven by a lifting drive module 10 to reciprocate in the vertical direction is provided on both the front lattice column 1 and the rear lattice column 2. A construction operation platform 3 is provided on the edge of the lifting truss located on one side of the two front lattice columns 1. A construction telescopic platform 4 that can be adjusted in length is provided on the construction operation platform 3 so that the construction telescopic platform 4 can extend forward to different lengths beyond the front lattice column 1. The top ends of the two front lattice columns 1 and the two rear lattice columns 2 are fixedly connected by a top frame. The four-point support system consisting of two front lattice columns 1 and two rear lattice columns 2 effectively improves the stability of the scaffolding during building facade maintenance, avoiding the damage to the building facade that would occur with twin-mast scaffolding requiring anchoring. By installing a retractable construction platform 4, the width of the construction operation platform 3 can be expanded according to actual needs, meeting a wider range of operational requirements and effectively preventing interference between the existing scaffolding structure and the existing structure.

[0032] In the above embodiment, the front lattice column 1 and the rear lattice column 2 are standard sections with triangular, quadrilateral, or other polygonal cross sections spliced ​​together by connectors. These standard sections are welded from steel pipes, square tubes, or angle steel. The specific height of the front lattice column 1 and the rear lattice column 2 is set according to the actual height of the building, thus making them suitable for buildings with different height requirements. Preferably, the two front lattice columns 1 and the two rear lattice columns 2 are arranged in a rectangular distribution, thereby increasing the stability of the structure and greatly reducing space occupation. The lifting drive module 10 is driven by a motor. Specifically, the transmission structure for lifting can adopt chain transmission, gear and rack transmission, synchronous belt transmission, etc., further enriching the selectivity of the transmission method. The lifting truss can adopt the same structural form as the front lattice column 1 and the rear lattice column 2. The lifting truss is a rectangular frame structure, with a lifting drive module 10 at each apex to drive its lifting. The four lifting drive modules 10 operate synchronously, using the same single-chip microcomputer controller for synchronous lifting control, improving the stability during lifting and effectively ensuring the flatness of the construction operation platform 3. The construction operation platform 3 includes an upper base plate and a reinforcing frame located beneath the upper base plate. The reinforcing frame is a frame structure welded from steel pipes or angle steel, thereby improving the load-bearing capacity of the construction operation platform 3 and minimizing bending deformation in the middle of the platform. The lifting drive device is equipped with an electrical control and intelligent monitoring safety system, which includes displacement sensors, pressure sensors, tilt sensors, a monitoring camera, a safety limit device, and a brake to achieve overall synchronous control of the platform. Specifically, the displacement sensor detects the displacement of the lifting truss, the pressure sensor detects the pressure on the construction operation platform 3, the tilt sensor detects the tilt of the construction operation platform 3, the monitoring camera monitors the safety of personnel on the construction operation platform 3 and the construction telescopic platform 4, the safety limit device limits the extreme positions of the vertical lifting of the construction operation platform 3 and the construction telescopic platform 4, and the brake brakes the construction operation platform 3 and the construction telescopic platform 4 at their hovering positions.

[0033] In the above embodiments, the construction expansion platform 4 and the construction operation platform 3 are connected by a sliding connection or by a slotted connection, so that the construction expansion platform 4 can extend forward relative to the construction operation platform 3 to the front vertical surface of the front lattice column 1, and the specific extension length can be adjusted. In order to increase the stability of the top structure of the front lattice column 1 and the rear lattice column 2, a rectangular top frame is used to fix the top of the rectangular structure formed by the two front lattice columns 1 and the two rear lattice columns 2. The top frame is also a frame structure welded from steel pipes, square tubes or angle steel.

[0034] See Figure 5As shown, in a preferred embodiment of the present invention, the horizontal surface of the construction telescopic platform 4 has multiple elongated holes 14 extending in the front-to-back direction. The length of each elongated hole 14 can be set to more than half the width of the construction telescopic platform 4. The extension direction of the elongated holes 14 is perpendicular to the length direction of the construction telescopic platform 4. Multiple elongated holes can be arranged on the same extension line or staggered left and right on the construction telescopic platform 4. The horizontal surface of the construction operation platform 3 has circular holes, which are fastened to any position along the length direction of the elongated holes 14 by locking bolts 15. In use, when the building is not being repaired, the construction telescopic platform 4 is adjusted to a non-extended state, thereby reducing space occupation. When the building is being repaired, the locking bolts 15 at the connection between the elongated holes 14 and the circular holes are loosened. The length of the construction telescopic platform 4 extending beyond the edge of the construction operation platform 3 is adjusted according to the distance between the edge of the construction operation platform 3 and the building facade. After adjustment, the locking bolts 15 are tightened. This adjustment method, using elongated holes 14 and circular holes for fixing, is suitable for exterior facade repairs of different building surfaces. To ensure the stability of the construction expansion platform 4, the locking bolts 15 in the multiple elongated holes 14 are fixed at least in a triangular point configuration.

[0035] See Figure 1 As shown, in a preferred embodiment of the present invention, the front edge and both ends of the construction expansion joint 4 are provided with first guardrails 5, and the rear edge and both ends of the construction operation platform 3 are provided with second guardrails 7. The front edge of the construction expansion joint 4 refers to the edge that extends outward parallel to the front vertical planes of the two front lattice columns 1. The two ends of the construction expansion joint 4 refer to its two ends in the length direction. The rear edge of the construction operation platform 3 refers to the rear edge that is parallel to the front vertical planes of the two front lattice columns 1. The two ends of the construction operation platform 3 refer to its two ends in the length direction. During installation, the first guardrail 5 on the front edge of the construction expansion joint 4 is parallel to the second guardrail 7 on the rear edge of the construction operation platform 3. The first guardrail 5 on the two ends of the construction expansion joint 4 is located inside or outside the second guardrail 7 on the two ends of the construction operation platform 3. The two guardrails are slidably connected at their contact points so that they can form a closed space during adjustment, thereby improving safety. Furthermore, the first guardrail 5 and the second guardrail 7 are installed using telescopic sleeves in the height direction, allowing their height to be adjusted according to operational needs. The first guardrail 5 and the second guardrail 7 can be equipped with reinforced railings and metal mesh designs to improve personnel safety during operation.

[0036] See Figure 1 and Figure 10As shown, in a preferred embodiment of the present invention, the lifting truss includes a lifting crossbeam 8 disposed between two front lattice columns 1 and two rear lattice columns 2, and a lifting longitudinal beam 9 disposed between the front lattice columns 1 and the rear lattice columns 2. Lifting drive modules 10 capable of vertical movement are slidably fitted onto both the front lattice columns 1 and the rear lattice columns 2. The ends of the lifting crossbeam 8 and the lifting longitudinal beam 9 are fixed to the outer surface of the lifting drive module 10. The lifting crossbeam 8 and the lifting longitudinal beam 9 can both adopt the same frame structure as the front lattice columns 1 or the rear lattice columns 2, and their ends are welded together or installed on the outer surface of the lifting drive module 10 using bolts. This integrated lifting truss structure enables the construction operation platform 3 and the construction telescopic platform 4 to be stably maintained on a horizontal plane during lifting operations, significantly improving the stability of the lifting truss's reciprocating movement in the vertical direction. Flexible protective nets are hung below the lifting crossbeam 8 and the lifting longitudinal beam 9, achieving fully enclosed protection to prevent any falling objects from heights in the construction area.

[0037] See Figure 1 and Figure 10 As shown, in a preferred embodiment of the present invention, the top frame includes a top crossbeam 12 connecting the tops of two front lattice columns 1, a top crossbeam 12 connecting the tops of two rear lattice columns 2, and a top longitudinal beam 13 connecting the two sets of front lattice columns 1 and rear lattice columns 2. The top crossbeams 12 and top longitudinal beams 13 can be configured with the same structural form as the lifting crossbeams 8 and lifting longitudinal beams 9, thereby significantly reducing processing costs and difficulties. The two top crossbeams 12 and the two top longitudinal beams 13 together form a rectangular frame structure. By setting the top frame composed of the top crossbeams 12 and top longitudinal beams 13, the stability of the tops of the front lattice columns 1 and rear lattice columns 2 is significantly enhanced. The side of the front lattice column 1 closest to the building can be connected and fixed to the building with wall ties when the working height is high. The front lattice columns 1 and rear lattice columns 2 can be connected by an oblique truss structure, thereby effectively preventing the tops of the front lattice columns 1 and rear lattice columns 2 from swaying during use. Flexible protective netting is attached to the bottom of the two top horizontal beams 12 and the two top vertical beams 13, achieving full enclosure protection to prevent any falling objects from heights in the construction area.

[0038] See Figure 1 and Figure 6As shown, in a preferred embodiment of the present invention, the lifting drive module 10 includes a lifting body 17 sleeved on the outer periphery of the front lattice column 1 or the rear lattice column 2. Rollers 18, which are rolledly connected to the front lattice column 1 or the rear lattice column 2, are provided inside the lifting body 17. The lifting body 17 is driven by a lifting drive device to reciprocate vertically. A brake is provided inside the lifting drive device. The brake is either an electromagnetic brake or a mechanical brake. By providing the brake, the lifting drive module 10 can be suspended at a specified height, thereby enabling the construction operation platform 3 and the construction telescopic platform 4 to be stably suspended at the specified height for repairing the exterior surface of the building. The multiple rollers 18 provided inside the lifting body 17 improve the smoothness of the movement of the lifting body 17 on the front lattice column 1 or the rear lattice column 2 and reduce frictional resistance.

[0039] In the above embodiments, see Figure 7 As shown, optionally, the lifting drive device includes a drive motor 16 mounted on the support base 6. The output shaft of the drive motor 16 is equipped with a drive wheel 19, which is a drive sprocket. The drive sprocket is connected to a driven sprocket 34 at the top of the front lattice column 1 or the rear lattice column 2 via a transmission chain. The lifting body 17 is installed at any position on the transmission chain, and the brake is installed on the output shaft of the drive motor 16. During operation, the drive motor 16 rotates, driving the drive sprocket to rotate. The drive sprocket, through the transmission chain, drives the driven sprocket 34 to rotate. At this time, the lifting body 17, mounted on the transmission chain, reciprocates vertically. When it reaches the designated position, the brake is activated, suspending the construction operation platform 3 and the construction telescopic platform 4.

[0040] In the above embodiments, see Figure 2 As shown, optionally, the lifting drive device includes at least one drive motor 16 installed inside the lifting body 17. The output shaft of the drive motor 16 is equipped with a drive wheel 19, which is a gear. The gear meshes with a rack vertically mounted on the front lattice column 1 or the rear lattice column 2 for transmission. A brake is installed on the output shaft of the drive motor 16. A four-track synchronous drive is adopted, and the lifting speed is adjustable from 0 to 12 m / min. During operation, the drive motor 16 rotates, driving the gear to rotate. The gear moves vertically along the rack, thereby driving the lifting body 17 and the lifting truss to move vertically. The construction operation platform 3 and the construction telescopic platform 4 move up and down accordingly. When they reach the designated position, the brake is activated, allowing the construction operation platform 3 and the construction telescopic platform 4 to hover.

[0041] See Figure 8 and Figure 9As shown, in a preferred embodiment of the present invention, the support base 6 includes a base frame 23 and a central support column 35 passing through the center of the base frame 23. A spherical hinge joint 24 is provided at the lower end of the central support column 35, and the spherical hinge joint 24 is rotatably connected to the hinged base plate 25. At least two wheels 26 are installed on the base frame 23. Multiple height adjustment devices are also provided on the outer periphery of the base frame 23. By setting the central support column 35, the spherical hinge joint 24, and the hinged base plate 25, when it is necessary to adjust the angle of the front lattice column 1 or the rear lattice column 2, the front lattice column 1 and the rear lattice column 2 are rotated. At this time, the spherical hinge joint 24 rotates within the hinged base plate 25, achieving angle adjustment while ensuring stable support for the front lattice column 1 and the rear lattice column 2. By incorporating the traveling wheels 26 and height adjustment device, when the entire scaffolding needs to be moved, the height adjustment device is retracted until the traveling wheels 26 contact the ground. At this point, the traveling wheels 26 provide support, propelling the scaffolding to the designated location. Then, the height adjustment device is extended until its bottom support provides support. This design enables rapid movement of the scaffolding and stable support after movement, improving mobility.

[0042] In the above embodiments, see Figure 9 As shown, the height adjustment device includes an outer sleeve 32 fixed to the outer periphery of the foot frame 23. A telescopic support leg 33 is slidably connected inside the outer sleeve 32. A support leg base plate 27 is fixed to the lower end of the telescopic support leg 33. A screw 31 is threadedly connected to the top of the telescopic support leg 33. The upper end of the screw 31 is rotatably connected to the top of the outer sleeve 32, and a driven bevel gear 30 is fixed to the top of the screw 31. A rotating rod 28 is laterally rotatably connected to the top of the outer sleeve 32. A driving bevel gear 29, which meshes with the driven bevel gear 30, is mounted on the rotating rod 28. During operation, rotating the handle mounted at the end of the rotating rod 28 drives the driving bevel gear 29 to rotate, which in turn drives the driven bevel gear 30 to rotate. At this time, the screw 31 rotates accordingly. In the threaded engagement state, the telescopic support leg 33 moves up or down within the outer sleeve 32, thereby adjusting the support height of the height adjustment device. This adjustment method is simple and quick, easy to operate, and the support height adjustment process is stable.

[0043] See Figure 10As shown, in a preferred embodiment of the present invention, a reinforcing beam 11 is further included connecting the front lattice column 1 and the rear lattice column 2. A horizontally extending horizontal support plate 20 is provided between the two reinforcing beams 11, and an inclined support plate 21 is provided on the reinforcing beam 11 in the direction of the outer edge of the width of the horizontal support plate 20. The structure of the reinforcing beam 11 is the same as that of the top longitudinal beam 13, both being frame structures welded from steel pipes or angle steel. The installation of the reinforcing beam 11 enhances the stability of the bottom connection between the front lattice column 1 and the rear lattice column 2. The inclination angle of the inclined support plate 21 is preferably between 10° and 45°. The width of the inclined support plate 21 and the horizontal support plate 20 is equal to the distance between the front lattice column 1 and the rear lattice column 2. By setting the inclined support plate 21 and the horizontal support plate 20, pedestrians and vehicles can quickly pass under the scaffolding, effectively utilizing the internal space of the scaffolding and avoiding the negative impact of traffic congestion caused by building repairs.

[0044] In the above embodiments, combined with Figure 10 As shown, a counterweight box 22 is connected to the bottom of the horizontal support plate 20. The counterweight box 22 contains multiple stacked counterweight blocks. The counterweight box 22 can be set to have the same width as the horizontal support plate 20, or it can be set to be biased towards the rear lattice column 2 according to actual needs. When the load on one side of the construction operation platform 3 and the construction telescopic platform 4 increases, the counterweight can be adjusted by increasing the number of counterweight blocks in the counterweight box 22 that are closer to the rear lattice column 2. By setting the counterweight box 22, the stability of the scaffolding during use is significantly improved, the usage requirements of different loads are met, the safety of personnel is significantly improved, and the deviation of the scaffolding due to instability of the center of gravity is avoided.

[0045] In a preferred embodiment of the present invention, a lifting escalator connected to the construction operation platform 3 is also included. The lifting escalator facilitates quick access for maintenance personnel to the construction operation platform 3. To improve the safety of maintenance personnel, a safety hook is also provided on the construction operation platform 3. Maintenance personnel are secured to the safety hook with a safety rope around their waist, thereby significantly enhancing their safety.

[0046] In a preferred embodiment of the present invention, the construction telescopic platform 4 may be composed of multiple sub-platforms, each of which is slidably connected to the construction operation platform 3. Each sub-platform is installed using an elongated hole 14 and a locking bolt 15. During use, the number and length of the extended sub-platforms can be set according to actual needs, thereby meeting the repair needs of curved or irregular surfaces.

[0047] In the description of this invention, the terms "first," "second," "before," and "after" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A type of electrically powered scaffolding for building repair, characterized in that, The system includes two parallel front lattice columns (1), with a rear lattice column (2) spaced apart on the rear side of each front lattice column (1). Support feet (6) are installed at the bottom of both the front lattice column (1) and the rear lattice column (2). A lifting truss, which can be driven by a lifting drive module (10) to reciprocate in the vertical direction, is provided on both the front lattice column (1) and the rear lattice column (2). A construction operation platform (3) is provided on the edge of the lifting truss located on one side of the two front lattice columns (1). A construction telescopic platform (4) with adjustable length is provided on the construction operation platform (3) to allow the construction telescopic platform (4) to extend forward to different lengths beyond the front lattice column (1). The tops of the two front lattice columns (1) and the two rear lattice columns (2) are fixedly connected by a top frame. The support feet (6) have a height adjustment device.

2. The electric scaffolding for building repair as described in claim 1, characterized in that, The construction telescopic platform (4) has multiple elongated holes (14) extending in the front-back direction on its horizontal surface. The construction operation platform (3) has a circular hole on its horizontal surface. The circular hole is fastened to any position along the length of the elongated hole (14) by locking bolts (15). The construction telescopic platform (4) is divided into single or multiple pieces of different lengths to adapt to different complex shapes of the working surface.

3. The electric scaffolding for building repair as described in claim 1, characterized in that, On the side of the front lattice column (1) close to the building, and when the working height exceeds the preset height, the front lattice column (1) is provided with a wall tie that is fixed to the building; the front lattice column (1) and the rear lattice column (2) are connected by an oblique truss structure.

4. The electric scaffolding for building repair as described in claim 1, characterized in that, The lifting truss includes a lifting crossbeam (8) disposed between the two front lattice columns (1) and the two rear lattice columns (2) and a lifting longitudinal beam (9) disposed between the front lattice columns (1) and the rear lattice columns (2). The lifting drive module (10) capable of lifting and moving is slidably sleeved on the front lattice columns (1) and the rear lattice columns (2). The ends of the lifting crossbeam (8) and the lifting longitudinal beam (9) are fixed on the outer surface of the lifting drive module (10).

5. The electric scaffolding for building repair as described in claim 4, characterized in that, The lifting drive module (10) includes a lifting body (17) sleeved on the outer periphery of the front lattice column (1) or the rear lattice column (2). The lifting body (17) is provided with rollers (18) that are rolled on the front lattice column (1) or the rear lattice column (2). The lifting body (17) is driven by the lifting drive device to move back and forth in the vertical direction. The lifting drive device is equipped with an electrical control and intelligent monitoring safety system. The electrical control and intelligent monitoring safety system includes a displacement sensor, a pressure sensor, an tilt sensor, a monitoring camera, a safety limit device, and a brake to achieve overall synchronous control of the platform.

6. The electric scaffolding for building repair as described in claim 5, characterized in that, The lifting drive device includes a drive motor (16) mounted on the support base (6). The output shaft of the drive motor (16) is equipped with a drive wheel (19). The drive wheel (19) is a drive sprocket. The drive sprocket is connected to the driven sprocket (34) at the top of the front lattice column (1) or the rear lattice column (2) via a transmission chain. The lifting body (17) is installed at any position on the transmission chain.

7. The electric scaffolding for building repair as described in claim 5, characterized in that, The lifting drive device includes at least one drive motor (16) installed inside the lifting body (17). The output shaft of the drive motor (16) is equipped with a drive wheel (19). The drive wheel (19) is a gear, which meshes with a rack mounted vertically on the front lattice column (1) or the rear lattice column (2).

8. The electric scaffolding for building repair as described in claim 1, characterized in that, The height adjustment device includes an outer sleeve (32) fixed to the outer periphery of the support foot (6). A telescopic support leg (33) is slidably connected inside the outer sleeve (32). A support leg base plate (27) is fixed to the lower end of the telescopic support leg (33). A screw (31) is threadedly connected to the top of the telescopic support leg (33). The upper end of the screw (31) is rotatably connected to the top end of the outer sleeve (32). A driven bevel gear (30) is fixed to the top end of the screw (31). A rotating rod (28) is rotatably connected to the top end of the outer sleeve (32). An active bevel gear (29) that meshes with the driven bevel gear (30) is installed on the rotating rod (28).

9. The electric scaffolding for building repair as described in claim 1, characterized in that, It also includes a reinforcing beam (11) connecting the front lattice column (1) and the rear lattice column (2), with a horizontally extending horizontal support plate (20) provided between the two reinforcing beams (11), and an inclined support plate (21) provided on the reinforcing beam (11) in the direction of the outer side of the width edge of the horizontal support plate (20).

10. The electric scaffolding for building repair as described in claim 9, characterized in that, The bottom of the horizontal support plate (20) is connected to a counterweight box (22), and the counterweight box (22) contains multiple layers of stacked counterweight blocks.

11. The electric scaffolding for building repair as described in claim 4, characterized in that, A flexible protective net is hung below the lifting crossbeam (8) and the lifting longitudinal beam (9). The top frame includes a top crossbeam (12) connecting the tops of the two front lattice columns (1), a top crossbeam (12) connecting the tops of the two rear lattice columns (2), and a top longitudinal beam (13) connecting the two sets of front lattice columns (1) and rear lattice columns (2). A flexible protective net can be hung below the top crossbeam (12) and the top longitudinal beam (13).

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