A residential building machine construction platform jacking device and jacking process

Abstract

The application discloses a kind of residential building machine construction platform jacking device and jacking process, belong to the technical field of construction equipment.The device includes steel platform, support column and jacking sleeve system, support column is combined by standard section, leveling section and lengthening section, and lengthening section is provided with step corresponding to the spacing of building single-storey height;Jacking sleeve system includes mutually separated upper climbing frame and lower climbing frame, upper climbing frame connects steel platform, lower climbing frame is detachably connected with step by hanging boot, and hydraulic cylinder with stroke greater than the spacing of step is arranged between upper and lower climbing frames.Support column is connected with building structure by adjustable wall-attached support, and elevation, horizontal displacement and perpendicularity monitoring points are respectively arranged on steel platform and support column.The application can lift steel platform layer by layer according to building height, and is suitable for vertical jacking and position adjustment of residential building machine construction platform.

Description

Technical Field

[0001] This invention belongs to the field of building construction equipment technology, specifically relating to a lifting device and lifting process for a residential building construction platform. Background Technology

[0002] Residential building construction rigs are based on mechanized operations and automated control. They integrate equipment for hoisting components, placing concrete, vibrating, leveling, curing, external wall insulation, and plastering—all necessary for reinforced concrete structure construction—on an aerial construction platform to achieve layer-by-layer construction of the building's main structure. A typical residential building construction rig includes supporting columns, a steel platform, a hanging frame and protective structure, a lifting system, construction equipment, and a material lifting system. The lifting system drives the steel platform to move along the building's height and transfers the loads generated by the steel platform and its superstructure, equipment, materials, and personnel to the supporting columns.

[0003] Existing construction platform lifting devices typically use standard sections of fixed height to form supporting columns. Since the structural module of the standard section is not necessarily consistent with the floor height of a single building, the height of the steel platform relative to the floor may deviate after each lifting operation. This deviation can easily accumulate as the number of construction floors increases. For steel platforms equipped with construction robots, the vertical adjustment range that the robots can compensate for is limited. Platform height deviations directly affect the relative position of the construction equipment and the work surface, thus impacting the accuracy of concrete placement, leveling, curing, and exterior wall construction operations.

[0004] Existing jacking devices still suffer from several problems during platform load transfer, including unclear load-bearing paths for the jacking frame, unstable positioning of load-bearing components, and unexpected displacement after hydraulic drive mechanism depressurization. Particularly when multiple support columns jointly support the same steel platform, differences in load, frictional resistance, and hydraulic pipeline conditions at each jacking position can easily lead to inconsistent lifting amounts at different jacking points, resulting in platform tilting, planar displacement, column skew, or scraping against wall-attached structures.

[0005] Furthermore, the support columns of residential building construction machines are relatively tall and are affected by wind loads, construction eccentric loads, and installation errors. Therefore, a reliable wall-mounted structure is required between the support columns and the building structure. Traditional rigid wall-mounted connections have limited installation adjustment margins and cannot simultaneously compensate for distance errors, angle errors, and lateral offsets between the support columns and the building structure, affecting the verticality and overall stability of the support columns. Existing technologies therefore still need to address issues such as the mismatch between the support column module and the building floor height, unstable platform load transfer, insufficient safety maintenance under depressurization conditions, and difficulty in accurately detecting the elevation and attitude after lifting. Summary of the Invention

[0006] Purpose of the invention: The purpose of this invention is to address the shortcomings of existing technologies by providing a lifting device for a residential building construction platform. Through modular support columns, step arrangements corresponding to the floor height of a single building, separate upper and lower climbing frames, and hydraulic cylinders located between them, the steel platform can be lifted layer by layer along the support columns, and the lifting device's adaptability to building floor height, installation errors, and abnormal pressure loss conditions is improved.

[0007] Technical Solution: The present invention discloses a jacking device for a residential building construction platform, comprising a steel platform and supporting columns. The supporting columns are vertically assembled from standard sections and extended sections. Steps are provided on the extended sections, and the vertical spacing between adjacent steps is equal to the single-story height of the building. A jacking frame system is fitted onto the supporting columns. The jacking frame system includes an upper climbing frame and a lower climbing frame that are separately arranged. The upper climbing frame is fixedly connected to the steel platform, and both the upper and lower climbing frames are provided with detachable parts that can be removed from the steps. The upper and lower hanging boots are connected by gravity. A hydraulic cylinder is provided between the upper and lower climbing frames. The two ends of the hydraulic cylinder are connected to the upper and lower climbing frames respectively. The effective stroke of the hydraulic cylinder is greater than the vertical distance between adjacent steps. When the lower hanging boot is connected to the current step, the upper climbing frame is driven to lift the steel platform until the upper hanging boot is connected to the target step above. When the upper hanging boot is carrying the steel platform, the lower climbing frame is driven to lift until the lower hanging boot is connected to the adjacent step above.

[0008] To further improve the above technical solution, the supporting column also includes a leveling section at its lower part. The leveling section is used to compensate for the difference between the foundation installation height of the supporting column and the height module of the standard section. The standard section and the extension section are arranged vertically adjacent to each other, and the combined height of the standard section and the extension section is equal to the vertical distance between adjacent steps.

[0009] Furthermore, the cross-sectional dimensions of the standard section, the leveling section, and the extension section are all 1.8m × 1.8m. The height of the standard section is 2.8m, the height of the leveling section is 1.56m, the height of the extension section is 0.3m, the vertical distance between adjacent steps is 3.1m, the designed stroke of the hydraulic cylinder is 3300mm, and the difference between the designed stroke of the hydraulic cylinder and the vertical distance between adjacent steps is 200mm.

[0010] Furthermore, the hydraulic cylinder has a cylinder diameter of 180mm, a rated thrust of 500kN, and a piston movement speed of 90mm / min. The hydraulic cylinder is equipped with a cylinder self-locking device, which is used to restrict the extension and retraction of the hydraulic cylinder when the power is off or the pressure is lost. The hydraulic cylinder is also equipped with a rotating lower support fixed to the step during the lifting process.

[0011] Furthermore, the upper climbing frame includes an upper frame and flange connecting plates disposed around the upper frame. The flange connecting plates fix the lower chord of the steel platform to the upper frame through pressure plates. The pressure plates are provided with elliptical holes extending along the installation position adjustment direction.

[0012] Furthermore, the supporting column is provided with a wall-mounted support, which includes a connecting plate fixedly installed on the side wall of the supporting column, a wall-mounted rod threadedly connected to the connecting plate, and a wall-mounted connector located at the end of the wall-mounted rod away from the connecting plate. The wall-mounted connector is detachably connected to a pre-embedded connecting component on the building structure. The middle of the wall-mounted rod is provided with a through-hole adjustment hole, and an anti-deviation adjustment rod detachably connected to the building structure is inserted through the adjustment hole. Adjusting nuts are threaded to both ends of the anti-deviation adjustment rod.

[0013] Furthermore, a support beam is provided between the two connecting plates and fixedly connected to the support column. A connecting arm is rotatably mounted on the support beam, and an elongated opening for the connecting arm to slide is provided on the support column. An anchoring box is pre-embedded in the building structure, and a ball joint connector is provided inside the anchoring box. The ball joint connector includes a base, a support rod mounted on the base, and a spherical connector at the upper end of the support rod. One end of the connecting arm is provided with a spherical groove that engages with the spherical connector. A mounting base is provided on the side of the support column away from the building structure. A sleeve is provided on the mounting base, and a set screw is threaded into the sleeve. The upper end of the set screw is ball jointed to a top block that abuts against the connecting arm.

[0014] This invention also provides a lifting process for a residential building construction platform applied to the above-mentioned device, comprising the following steps: engaging the lower hanging shoe with the current step, so that the lower climbing frame is supported by the support column; controlling the extension of the hydraulic cylinder, causing the upper climbing frame to lift the steel platform until the upper hanging shoe passes the target step above; placing the upper hanging shoe on the target step, so that the load of the steel platform is transferred to the support column via the upper climbing frame and the upper hanging shoe; releasing the load-bearing relationship between the lower hanging shoe and the current step and controlling the retraction of the hydraulic cylinder, causing the lower climbing frame to move upward; engaging the lower hanging shoe with the adjacent step above, so that the lower climbing frame is supported by the support column again, completing one lifting cycle.

[0015] When the jacking operation involves the climbing of the support column or the change of the wall attachment position, after the support column reaches the specified height, it continues to move upward by 150-250mm, so that the connecting arm rotatably connected to the support column enters the target anchor box in the building structure. Then, the support column or jacking frame system is lowered back to the specified height, so that the connecting arm is connected to the ball joint connector set in the target anchor box.

[0016] During the process of the upper climbing frame driving the steel platform to rise and the lower climbing frame moving upward, the stroke and pressure changes of the hydraulic cylinders at each lifting position are monitored. After each lifting cycle is completed, eight first monitoring points set at the support column and four second monitoring points set at the top of the steel platform are measured to obtain the verticality of the support column, the elevation change of the steel platform, the horizontal position movement and torsion data. The measured data are compared with the theoretical position data, and when the lifting height difference between different lifting positions exceeds 20mm, the out-of-tolerance data is recorded so that the deviation can be corrected and adjusted before the next lifting.

[0017] Beneficial Effects: This invention coordinates the design of single-story building height, supporting column segment modules, step spacing, and hydraulic cylinder stroke, enabling the steel platform to be raised layer by layer according to the building's height. Furthermore, it enhances the stability and controllability of the lifting process through detachable load-bearing capacity, wall-mounted adjustment, pressure loss self-locking, and multi-point monitoring. Compared to existing technologies, this invention offers the following technical advantages: By combining standard sections and extended sections to form a repeating jacking module, and setting the steps on the extended sections, the distance between adjacent steps can correspond to the single-story height of the building. This allows the steel platform to move one floor height after each jacking cycle, solving the problem of inconsistent jacking step distance and floor height when only fixed-height standard sections are used.

[0018] By setting up leveling sections and extension sections separately, the leveling sections are used to compensate for the initial height difference between the foundation raft slab, steel platform and main standard section, while the extension sections are used to compensate for the repeated modular difference between the standard section and the building floor height. This separates the one-time foundation leveling function from the layer-by-layer repeated step distance compensation function, solving the problem of mutual influence between the initial elevation adjustment and the subsequent jacking step distance when using a single adjustment section.

[0019] By separating the upper and lower climbing frames, with the upper climbing frame connected to the steel platform and the lower climbing frame supported on the steps by hanging shoes, the lower climbing frame can provide lifting reaction force to the hydraulic cylinder, and the upper climbing frame can transmit the extension displacement of the hydraulic cylinder to the steel platform. This allows the lifting of the steel platform and the repositioning of the lower climbing frame to be carried out in stages, avoiding the problem of repeated disassembly and assembly required when the steel platform connecting frame and the step support frame are made into an integral structure.

[0020] By designing the hydraulic cylinder's stroke to be greater than the vertical spacing between adjacent steps, additional displacement can be provided for the hanging shoe to cross the steps, for load-bearing position changes, and for the wall-mounted connectors to be positioned, in addition to completing the basic lifting amount for one floor height.

[0021] By setting a pressure loss self-locking function for the hydraulic cylinder, the hydraulic cylinder can be restricted from continuing to extend and retract when the hydraulic power is interrupted or the system pressure decreases, thereby keeping the upper and lower climbing frames in their relative positions before the abnormality occurs, reducing the risk of the steel platform suddenly shifting downward or the lifting frame becoming unstable.

[0022] By setting flange connection plates around the upper frame and using pressure plates to clamp the lower chord of the steel platform, and setting the pressure plate fixing holes as elliptical holes, the position of the pressure plate can be adjusted in the extension direction of the elliptical holes at the front edge of the fastening, thereby absorbing the processing and installation deviations between the lower chord of the steel platform, the upper frame and the flange connection plates, and reducing the need for on-site hole enlargement or forced assembly of components due to the deviation of the connection hole position.

[0023] By threading the wall-mounted rod to the connecting plate, the horizontal distance between the supporting column and the building structure can be adjusted. By inserting an anti-deviation adjustment rod through the wall-mounted rod and setting adjusting nuts at both ends, the lateral deviation of the supporting column can be limited. The detachable connection between the connecting arm and the ball joint seat can compensate for angular errors in the wall-mounted connection position. The combined effect of these distance adjustment, lateral limiting, and angle compensation structures allows the wall-mounted support to adapt to construction deviations in the building structure and installation errors in the supporting column, and reduces the degree of additional bending moment caused by forced alignment at the wall-mounted connection.

[0024] By arranging eight first monitoring points at the support columns and four second monitoring points on the top of the steel platform, data on the verticality of the support columns, the relative flatness of the cylinder brackets, and the elevation and horizontal position changes of the steel platform can be obtained, thus distinguishing different sources of error such as platform height difference, column tilt, and planar offset. After each jacking operation, the twelve monitoring points are re-measured, and the test results are compared with the theoretical positions, providing a quantitative basis for subsequent correction. This ensures that the height difference between the various jacking positions of the steel platform is checked within the allowable range of 20mm in this embodiment, avoiding reliance on local visual inspection to determine the platform's posture. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the use of the jacking device for the construction platform of the residential building machine of the present invention, showing the arrangement of the supporting columns, steel platform, jacking frame system and wall-mounted supports relative to the building floors; Figure 2 This is a three-dimensional schematic diagram of the overall structure of the residential building construction platform lifting device of the present invention; Figure 3This is a front view schematic diagram of the overall structure of the residential building construction platform lifting device of the present invention; Figure 4 This is a side view of the overall structure of the lifting device for the residential building construction platform of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the support column and lifting frame system of the present invention, showing the relative positions of the upper climbing frame, lower climbing frame, hydraulic cylinder, hanging shoe and steps; Figure 6 This is a front view structural diagram of the support column and lifting frame system of the present invention; Figure 7 This is a side view of the supporting column and lifting frame system of the present invention.

[0026] Attached reference numerals: 1. Support column; 1-1. Standard section; 1-2. Leveling section; 1-3. Extension section; 1-4. Step; 2. Lifting frame system; 2-1. Lower climbing frame; 2-2. Upper climbing frame; 2-3. Hanging shoe; 2-4. Flange connecting plate; 2-5. Pressure plate; 3. Wall-mounted support; 3-1. Connecting plate; 3-2. Wall-mounted rod; 3-3. Wall-mounted connector; 3-4. Anti-deviation adjustment rod; 4. Steel platform; 5. Hydraulic cylinder. Detailed Implementation

[0027] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0028] Example 1: Lifting device for residential building construction platform like Figures 1 to 7 As shown, this embodiment provides a jacking device for a residential building construction platform, which mainly includes a steel platform 4, a support column 1, a jacking frame system 2 sleeved on the support column 1, and a wall-mounted support 3 set between the support column 1 and the building structure.

[0029] The steel platform 4 can be a Bailey bridge steel platform, which can accommodate concrete placement, vibration, leveling, curing, exterior wall construction, and other building construction equipment. The supporting columns 1 extend along the building height to bear the loads generated by the steel platform 4, construction equipment, construction materials, and construction personnel. The jacking scaffolding system 2 is used to raise the steel platform 4 relative to the supporting columns 1 layer by layer, and to re-establish a stable load-bearing state after each jacking.

[0030] I. Supporting Columns The support column 1 is composed of standard section 1-1, leveling section 1-2, and extension section 1-3 arranged vertically. The cross-sectional dimensions of each section are 1.8m × 1.8m. Adjacent sections are detachably connected by 10.9 grade M36 bolts, so that the support column 1 can be extended, disassembled, and reused according to the building construction height.

[0031] Standard section 1-1 has a height of 2.8m and serves as the main structural unit supporting column 1. Multiple standard sections 1-1 are connected in sequence to form the main load-bearing structure supporting column 1, and transfer the vertical load generated by steel platform 4 and lifting frame system 2 to the building foundation.

[0032] The leveling section 1-2 has a height of 1.56m and is used to adjust the initial installation height of the support column 1. When the support column 1 is installed from the foundation raft slab, the height between the top surface of the foundation raft slab and the lower Bailey bridge of the steel platform 4 is not an integer multiple of 2.8m. Therefore, the leveling section 1-2 is set at the lower part of the support column 1 to compensate for the above-mentioned non-integer modular height difference, so that the steel platform 4 reaches the initial design elevation.

[0033] The height of the extended section 1-3 is 0.3m. Each standard section 1-1 with a height of 2.8m and an extended section 1-3 with a height of 0.3m are arranged vertically adjacent to each other, so that the total height of a repeating combination segment is 3.1m.

[0034] Steps 1-4 are welded onto the extended section 1-3. Multiple steps 1-4 are arranged at vertical intervals along the supporting column 1, with a vertical spacing of 3.1m between adjacent steps 1-4, which is the same as the single-story height of the building in this embodiment. Steps 1-4 are used to overlap with the hanging shoes 2-3 on the jacking frame system 2, forming a graded load-bearing position during the jacking process.

[0035] The vertical adjustment range of the construction robot relative to the steel platform 4 is 300-500mm. To ensure that the distance between the steel platform 4 and the corresponding floor remains consistent after each jacking, the single target jacking height of the steel platform 4 is set to the building's single-story height, i.e., 3.1m. Through the combination of the 2.8m standard section 1-1 and the 0.3m extended section 1-3, and the steps 1-4 with a spacing of 3.1m, a repeating jacking module corresponding to the building's story height is structurally formed.

[0036] For buildings with different single-story heights, the height combination of standard sections and extended sections can be adjusted according to the building's floor height to make the spacing between adjacent steps match the corresponding single-story height of the building.

[0037] II. Lifting Frame System The lifting frame system 2 is mounted on the outside of the support column 1 and includes a lower climbing frame 2-1, an upper climbing frame 2-2 and a hydraulic cylinder 5 disposed between the lower climbing frame 2-1 and the upper climbing frame 2-2.

[0038] The upper climbing frame 2-2 is located above the lower climbing frame 2-1 and is fixedly connected to the steel platform 4. The lower climbing frame 2-1 and the upper climbing frame 2-2 can move along the support column 1 respectively, and the vertical distance between them can be changed by the extension and retraction of the hydraulic cylinder 5.

[0039] 1. Connection structure between the upper climbing frame and the steel platform The upper climbing frame 2-2 includes an upper frame and flange connection plates 2-4 arranged around the upper frame. The flange connection plates 2-4 fix the lower chord of the Bailey bridge of the steel platform 4 to the upper frame through pressure plates 2-5.

[0040] In this embodiment, flange connecting plates 2-4 are respectively provided on the four sides of the upper climbing frame 2-2, and four pressure plates 2-5 are provided on each side. The fixing holes on the pressure plates 2-5 are elliptical holes, which extend along the installation position adjustment direction.

[0041] During installation, before the connecting bolts are fully tightened, the pressure plate 2-5 can be moved along the length of the elliptical hole to adjust the relative position between the pressure plate 2-5 and the lower chord of the Bailey bridge. After the pressure plate 2-5 and the lower chord of the Bailey bridge are aligned, the connecting bolts are tightened to reliably fix the steel platform 4 to the upper climbing frame 2-2. This can absorb machining and installation deviations between the steel platform 4, the upper frame, and the flange connecting plate 2-4.

[0042] 2. Boot hanging structure Hanging shoes 2-3 are respectively installed on the lower climbing frame 2-1 and the upper climbing frame 2-2. For ease of explanation, the hanging shoe installed on the upper climbing frame 2-2 is called the upper hanging shoe, and the hanging shoe installed on the lower climbing frame 2-1 is called the lower hanging shoe. Both the upper hanging shoe and the lower hanging shoe are referred to as 2-3 in the attached drawing.

[0043] The hanging shoe 2-3 acts as a one-way load-bearing fastener, forming a detachable gravity overlap load-bearing relationship with the step 1-4. When the hanging shoe 2-3 rests on the load-bearing surface of the step 1-4, it can withstand the load transmitted downward by the corresponding climbing frame; when the corresponding climbing frame moves upward and the hanging shoe 2-3 passes over the step 1-4, the hanging shoe 2-3 can disengage from the original step 1-4 so as to move to the new step position above.

[0044] The hanging boots 2-3 adopt an adjustable structure to accommodate the installation spacing of steps 1-4 and the positional errors caused by the assembly of the support column 1 segment.

[0045] Before the steel platform 4 begins to be lifted, the lower hanging shoe on the lower climbing frame 2-1 overlaps with the current step 1-4, and the lower climbing frame 2-1 is thus supported by the support column 1. After the steel platform 4 reaches the target height, the upper hanging shoe on the upper climbing frame 2-2 overlaps with the target step 1-4 above, so that the load of the steel platform 4 is transferred to the support column 1 through the upper climbing frame 2-2, the upper hanging shoe and the target step 1-4. Subsequently, the lower climbing frame 2-1 is released from its original bearing position and moves upward, so that the lower hanging shoe overlaps with the new step 1-4 above, thereby completing the alternating bearing and repositioning of the upper and lower climbing frames.

[0046] 3. Hydraulic cylinder Hydraulic cylinder 5 is located between the upper climbing frame 2-2 and the lower climbing frame 2-1. The upper end of hydraulic cylinder 5 is rigidly connected to the upper climbing frame 2-2, and the lower end of hydraulic cylinder 5 is rigidly connected to the lower climbing frame 2-1.

[0047] In this embodiment, the hydraulic cylinder 5 has a cylinder diameter of Φ180mm, a rated thrust of 500kN, a designed stroke of 3300mm, and a piston movement speed of 90mm / min. The hydraulic cylinder 5 operates at a low speed to reduce the impact caused by speed changes during the lifting of the steel platform 4.

[0048] The vertical spacing between adjacent steps 1-4 is 3100mm, and the design stroke of hydraulic cylinder 5 is 3300mm. Therefore, hydraulic cylinder 5 has a stroke margin of 200mm relative to the building floor height. This stroke margin is used to allow the hanging shoe 2-3 to pass over the target step 1-4, and to provide movement space for the repositioning of the lifting component, the entry of the wall-mounted connection component into the connection position, and the subsequent return to its position.

[0049] Hydraulic cylinder 5 has a pressure loss self-locking function. When there is a sudden power failure or pressure loss in the hydraulic system during the lifting process, the cylinder self-locking device restricts the hydraulic cylinder 5 from continuing to extend or retract, keeping the lower climbing frame 2-1 and the upper climbing frame 2-2 in their relative positions before the power failure or pressure loss, reducing the unexpected sinking of the steel platform 4.

[0050] The hydraulic cylinder 5 is also equipped with a slewing lower support. During the corresponding lifting stage, the slewing lower support is fixed to the steps 1-4 of the support column 1 to form an auxiliary support position for the hydraulic cylinder 5.

[0051] III. Wall-mounted supports Several sets of wall-mounted supports 3 are installed along the height of the supporting column 1, and the supporting column 1 is detachably connected to the building structure through the wall-mounted supports 3. The number of wall-mounted supports 3 and the floors on which they are installed are determined based on calculations of the height of the supporting column 1, wind load, and construction load. In one engineering implementation, the wall-mounted supports 3 are respectively installed on the 5th and 13th floors of the building.

[0052] The wall-mounted support 3 includes a connecting plate 3-1, a wall-mounted rod 3-2, a wall-mounted connector 3-3, and an anti-deviation adjustment rod 3-4.

[0053] The connecting plate 3-1 is fixedly installed on the side wall of the supporting column 1. The connecting plate 3-1 has a threaded hole on the side facing the building structure, and one end of the wall-mounted rod 3-2 is threaded into the threaded hole. By rotating the wall-mounted rod 3-2, the length of the wall-mounted rod 3-2 extending out of the connecting plate 3-1 can be changed, thereby adjusting the horizontal distance between the supporting column 1 and the building structure.

[0054] The wall-mounted connector 3-3 is located at the end of the wall-mounted rod 3-2 away from the connecting plate 3-1, and is detachably connected to the anchoring component installed on the building structure.

[0055] A through-hole adjustment hole is provided in the middle of the wall-mounted rod 3-2. The anti-deviation adjustment rod 3-4 passes through the adjustment hole and is detachably connected to the embedded component on the building structure. Adjusting nuts are threaded to both ends of the anti-deviation adjustment rod 3-4, with one adjusting nut located inside the building structure. By adjusting the positions of the two adjusting nuts on the anti-deviation adjustment rod 3-4, the lateral position of the support column 1 can be restricted and adjusted.

[0056] Example 2: As an optional structure for wall-mounted supports, a support beam is provided between two connecting plates. The support beam is fixedly connected to a support column. A connecting arm is rotatably provided on the support beam, and the middle part of the connecting arm is rotatably connected to the support beam.

[0057] The supporting column is provided with an elongated opening for the connecting arm to pass through and slide. The connecting arm can slide relative to the supporting column in the direction of movement within the elongated opening. When the supporting column moves upward relative to the building structure, the connecting arm and the supporting column generate relative displacement through the elongated opening, thereby continuing to provide lateral constraint to the supporting column during its movement.

[0058] An anchoring box is installed on the building structure, and a ball joint connector is installed inside the anchoring box. One end of the connecting arm is detachably connected to the ball joint connector. The ball joint connector includes a base, a support rod disposed on the base, and a spherical connector disposed at the upper end of the support rod.

[0059] The end of the connecting arm facing the anchor box is provided with a spherical groove that mates with the spherical connector. After the connecting arm enters the anchor box, the spherical groove mates with the spherical connector, so that the connecting arm and the ball joint connector form a detachable ball joint connection.

[0060] A steel pad is provided between the ball joint connector and the bottom of the anchor box. The steel pad is used to increase the force-bearing area between the ball joint connector and the anchor box and to distribute the load transmitted by the connecting arm to the anchor box.

[0061] By rotating relative to the spherical connector and the spherical groove, the connecting arm can adjust its angle relative to the building structure to compensate for installation angle deviations and stress deformations between the supporting column, the connecting arm, and the building structure.

[0062] Example 3: As an optional embodiment of the connecting arm support, a mounting base is fixedly installed on the side of the support column away from the building structure. The mounting base is located below the connecting arm, and a sleeve is fixedly installed on the mounting base. A set screw is threaded into the sleeve.

[0063] The upper end of the set screw is provided with a set screw nut for driving the set screw to rotate. The upper end of the set screw is also connected to a top block through a ball joint structure. The top block abuts against the lower end of the connecting arm.

[0064] By rotating the set screw, the height of the set block relative to the mounting base can be changed, keeping the set block in contact with the lower end of the connecting arm. In this embodiment, the adjustment range of the set screw is ±20mm.

[0065] The top block and the ball joint connector provide support and limit at different positions of the connecting arm, thereby adjusting the position of the connecting arm and reducing the unexpected displacement of the connecting arm when subjected to lateral loads.

[0066] Example 4: Construction Platform Lifting Process Based on the residential building construction platform lifting device described in Example 1, the lifting process of the steel platform 4 includes the following steps.

[0067] S1, Lifting Preparation Inspect the upward path of support column 1 and remove screws, concrete protrusions, and other obstacles that may hinder the ascent.

[0068] Inspect the hydraulic lines, electrical wiring, and wire connectors of hydraulic cylinder 5 to ensure that the hydraulic lines and electrical connections are intact and reliable. Inspect the pins, cotter pins, and connecting bolts between the support column 1 section to ensure that the cotter pins are properly installed and that the connecting bolts are not loose.

[0069] Based on the current positions of support column 1 and steel platform 4, it is predicted whether the upper part of support column 1 can exceed the upper part of steel platform 4 after this climb and meet the requirements for subsequent support column height extension.

[0070] S2, Load Transfer Preparation Loosen the anti-deviation adjustment rod 3-4 in the wall-mounted support 3 related to the current climbing motion path, so that the corresponding connecting structure is in a state that allows jacking motion.

[0071] Clean the concrete and other debris from the surface of the wall-mounted support 3, the guide position, and the support column 1; check the through-wall bolts to ensure that the ends of the bolts do not extend beyond the wall surface and interfere with the lifting movement; detach all the formwork from the wall surface, and especially check whether the internal corner formwork is completely released from restraint.

[0072] Confirm that the lower hanging shoe 2-3 on the lower climbing frame 2-1 has been connected to the current step 1-4 and is under load, and release the upper hanging shoe 2-3 on the upper climbing frame 2-2 from the current step.

[0073] S3, Lifting of the upper climbing frame The hydraulic cylinder 5 is extended. Since the lower climbing frame 2-1 is supported on the current step 1-4 by the lower hanging shoe 2-3, the lower climbing frame 2-1 provides a lifting reaction force to the hydraulic cylinder 5, and the hydraulic cylinder 5 pushes the upper climbing frame 2-2 to move upward relative to the lower climbing frame 2-1.

[0074] The upper climbing frame 2-2 drives the steel platform 4 to rise as a whole until the upper hanging shoe 2-3 on the upper climbing frame 2-2 passes the target step 1-4 above.

[0075] During the lifting process, the stroke and pressure changes of the hydraulic cylinders at each lifting position are monitored in real time. The lifting amount at different lifting positions is compared, and it is observed whether there is any abnormal tilting or asynchronous phenomenon in the steel platform 4.

[0076] S4, Load Transfer and Transformation After the upper climbing frame 2-2 reaches the target height, the upper hanging shoe 2-3 is placed on the bearing surface of the target step 1-4 above, so that the load of the steel platform 4 is transferred to the support column 1 through the upper climbing frame 2-2, the upper hanging shoe 2-3 and the target step 1-4.

[0077] After confirming that the upper hanging shoe 2-3 and the target step 1-4 have completed the overlap, release the load-bearing relationship between the lower hanging shoe 2-3 on the lower climbing frame 2-1 and the original step 1-4, in order to prepare for the lower climbing frame 2-1 to be moved upward.

[0078] When this operation involves both the climbing of the support column 1 and the change of its attachment position, after the support column 1 reaches the specified height, the support column 1 is moved upward by 150-250mm, and the connecting arm slides relative to the long strip-shaped opening on the support column and enters the target anchor box.

[0079] S5, Lower Climbing Frame Lifting Control the retraction of hydraulic cylinder 5. Since steel platform 4 and upper climbing frame 2-2 are supported on target step 1-4 by upper hanging shoe 2-3, the retraction of hydraulic cylinder 5 drives lower climbing frame 2-1 to move upward.

[0080] The lower climbing frame 2-1 rises to the new upper bearing position, allowing the lower hanging shoe 2-3 to pass over and reach the corresponding step 1-4.

[0081] During the lifting process of the lower climbing frame 2-1, check the temperature of the hydraulic lines, whether there is any oil leakage at the connection points of the lines, and whether there are any abnormal noises in the lifting frame system 2.

[0082] S6. Lower climbing frame fixing and wall-mounted structure repositioning Make the lower hanging shoe 2-3 on the lower climbing frame 2-1 overlap with the step 1-4 on the adjacent upper extension section 1-3, so that the lower climbing frame 2-1 is supported again on the support column 1, completing one exchange of the upper and lower climbing frames.

[0083] Control the hydraulic cylinder 5 to reset, so that the lifting frame system 2 enters the initial state required for the next lifting.

[0084] When the operation involves changing the wall attachment position, after the connecting arm enters the target anchor box, the corresponding lifting component or support column 1 is lowered back to the specified height, so that the spherical groove at the end of the connecting arm engages with the spherical connector on the spherical hinge connector seat, thereby establishing a detachable spherical hinge connection between the connecting arm and the building structure.

[0085] Adjust the extension length of the top screw so that the top block abuts against the lower end of the connecting arm and forms a lower support for the connecting arm; reconnect and adjust the wall-mounted rod 3-2 and the anti-deviation adjustment rod 3-4 so that the wall-mounted support 3 restores the distance constraint and lateral constraint on the supporting column 1.

[0086] S7, System Detection and Adjustment Measure the elevation and levelness of each lifting position on the steel platform 4, and check whether the overall lifting height difference is within the allowable range of 20mm. For lifting positions that exceed the allowable range, record their height difference, horizontal offset, and torsion data, and formulate a correction and adjustment plan.

[0087] Check for any scraping between the support column 1, the guide position, and the wall-mounted support 3; check for any local height difference in the hanging bracket; and check whether the hanging shoes 2-3 and the steps 1-4 are fully overlapped.

[0088] After inspection and adjustment, restore the flaps, guardrails and other protective facilities that were opened during the lifting process to the closed state to prevent objects in the hanging frame and steel platform 4 from falling.

[0089] Example 3: Monitoring Point Layout and Corrective Management Monitoring points for jacking status detection are set on the support column 1 and the steel platform 4.

[0090] Eight first monitoring points, G1 to G8, are arranged at corresponding positions of each support column 1 to observe the relative flatness of the hydraulic cylinder bracket, the offset and torsion of the support column 1 relative to the building structure, and to detect the verticality of the support column 1.

[0091] Four second monitoring points, G9 to G12, are arranged on the top of the steel platform 4 to detect the horizontal position movement and elevation change of the steel platform 4 after each jacking.

[0092] After each jacking operation, monitoring points G1 to G12 are re-measured. Surveyors measure the elevation of the corresponding monitoring points on steel platform 4 and calculate the lifting height difference between each jacking position.

[0093] Surveyors used four reference points, which were transferred from the control points on the lower floors to the construction position, to check the G9 to G12 monitoring points fixed on the steel platform 4. They then compared the measured distance and elevation data of each monitoring point with the theoretical position data to obtain the plane offset, elevation deviation and torsion of the steel platform 4.

[0094] Measurement results should be recorded. Before the next jacking begins, the jacking control personnel shall formulate a correction plan based on the height difference and torsion data formed by the previous jacking, and complete the corresponding adjustments before the next jacking, so that jacking detection, error recording and subsequent correction form a closed-loop management.

[0095] Example 4: Steel Platform Load Control The upper part of the steel platform 4 can be used to arrange material placement equipment, construction materials, and miscellaneous machinery, and to allow construction personnel to pass through. However, the actual load on the steel platform 4 shall not exceed the design bearing capacity of the residential building construction machine.

[0096] During construction, based on the structural bearing capacity and construction requirements of steel platform 4, the top of steel platform 4 was divided into a material storage area, a machinery and equipment area, and a personnel passage area.

[0097] Load limit signs should be installed on the guardrails in each area, indicating the types of materials, machinery, and load limits that are allowed to be stored in that area. Construction materials and machinery should be placed in designated areas to avoid concentrated storage in local locations.

[0098] Site management personnel inspect the loads of materials, equipment, and personnel on steel platform 4 to ensure that the total load formed by single-layer construction materials, scattered machinery, and construction personnel remains within the design bearing capacity of steel platform 4.

[0099] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A lifting device for a residential building construction platform, comprising a steel platform and supporting columns, characterized in that, The supporting column is vertically assembled from standard sections and extended sections. Steps are provided on the extended sections, and the vertical spacing between adjacent steps is equal to the single-story height of the building. A lifting frame system is fitted onto the supporting column. The lifting frame system includes an upper climbing frame and a lower climbing frame that are separately arranged. The upper climbing frame is fixedly connected to the steel platform. The upper and lower climbing frames are respectively equipped with upper and lower hanging shoes that can detachably and gravity-operatedly connect with the steps. A hydraulic cylinder is installed between the frame and the lower climbing frame. The two ends of the hydraulic cylinder are connected to the upper climbing frame and the lower climbing frame, respectively. The effective stroke of the hydraulic cylinder is greater than the vertical distance between adjacent steps. When the lower hanging shoe is engaged with the current step, the upper climbing frame is driven to lift the steel platform until the upper hanging shoe is engaged with the target step above. And when the upper hanging shoe is carrying the steel platform, the lower climbing frame is driven to lift until the lower hanging shoe is engaged with the adjacent step above.

2. The residential building construction platform lifting device according to claim 1, characterized in that, The support column also includes a leveling section disposed at its lower part. The leveling section is used to compensate for the difference between the foundation installation height of the support column and the height module of the standard section. The standard section and the extension section are arranged vertically adjacent to each other, and the combined height of the standard section and the extension section is equal to the vertical spacing between adjacent steps.

3. The residential building construction platform lifting device according to claim 2, characterized in that, The cross-sectional dimensions of the standard section, the leveling section, and the extension section are all 1.8m × 1.8m. The height of the standard section is 2.8m, the height of the leveling section is 1.56m, and the height of the extension section is 0.3m. The vertical distance between adjacent steps is 3.1m. The designed stroke of the hydraulic cylinder is 3300mm, and the difference between the designed stroke of the hydraulic cylinder and the vertical distance between adjacent steps is 200mm.

4. The residential building construction platform lifting device according to claim 1, characterized in that, The hydraulic cylinder has a cylinder diameter of 180mm, a rated thrust of 500kN, and a piston movement speed of 90mm / min. The hydraulic cylinder is equipped with a cylinder self-locking device, which is used to restrict the extension and retraction of the hydraulic cylinder when the power is off or the pressure is lost. The hydraulic cylinder is also equipped with a rotating lower support fixed to the step during the lifting process.

5. The residential building construction platform lifting device according to claim 1, characterized in that, The upper climbing frame includes an upper frame and flange connecting plates arranged around the upper frame. The flange connecting plates fix the lower chord of the steel platform to the upper frame through pressure plates. The pressure plates are provided with elliptical holes extending along the installation position adjustment direction.

6. The residential building construction platform lifting device according to claim 1, characterized in that, The supporting column is provided with a wall-mounted support, which includes two connecting plates fixedly installed on the side wall of the supporting column, a wall-mounted rod threadedly connected to the connecting plates, and a wall-mounted connector located at the end of the wall-mounted rod away from the connecting plates. The wall-mounted connector is detachably connected to a pre-embedded connecting component on the building structure. The middle of the wall-mounted rod is provided with a through-hole adjustment hole, and an anti-deviation adjustment rod detachably connected to the building structure is inserted through the adjustment hole. Adjusting nuts are threaded to both ends of the anti-deviation adjustment rod.

7. The residential building construction platform lifting device according to claim 6, characterized in that, A support beam, fixedly connected to the support column, is provided between the two connecting plates. A connecting arm is rotatably mounted on the support beam. An elongated opening for the connecting arm to slide is provided on the support column. An anchoring box is pre-embedded in the building structure. A ball joint connector is provided inside the anchoring box. The ball joint connector includes a base, a support rod mounted on the base, and a spherical connector at the upper end of the support rod. One end of the connecting arm is provided with a spherical groove that engages with the spherical connector. A mounting base is provided on the side of the support column away from the building structure. A sleeve is provided on the mounting base. A set screw is threaded into the sleeve. The upper end of the set screw is ball-jointed to a top block that abuts against the connecting arm.

8. A lifting process for a residential building construction platform, applied to a lifting device for a residential building construction platform including a steel platform, supporting columns, an upper climbing frame, a lower climbing frame, and a hydraulic cylinder disposed between the upper climbing frame and the lower climbing frame, wherein the supporting columns are vertically spaced with steps, and the upper climbing frame and the lower climbing frame are respectively provided with upper and lower hanging shoes, characterized in that... Includes the following steps: The lower hanging shoe is engaged with the current step, so that the lower climbing frame is supported by the support column; the hydraulic cylinder is extended, causing the upper climbing frame to lift the steel platform until the upper hanging shoe passes the target step above; the upper hanging shoe is lowered onto the target step, so that the load of the steel platform is transferred to the support column through the upper climbing frame and the upper hanging shoe; the load-bearing relationship between the lower hanging shoe and the current step is released and the hydraulic cylinder is retracted, causing the lower climbing frame to move upward; The lower hanging shoe is then attached to the adjacent step above, so that the lower climbing frame is supported again on the support column, completing one lifting cycle.

9. The jacking process for the construction platform of a residential building machine according to claim 8, characterized in that, When the jacking operation involves the climbing of the support column or the change of the wall attachment position, after the support column reaches the specified height, it continues to move upward by 150-250mm, so that the connecting arm rotatably connected to the support column enters the target anchor box in the building structure. Then, the support column or jacking frame system is lowered back to the specified height, so that the connecting arm is connected to the ball joint connector set in the target anchor box.

10. The jacking process for the construction platform of a residential building machine according to claim 8, characterized in that, During the process of the upper climbing frame driving the steel platform to rise and the lower climbing frame moving upward, the stroke and pressure changes of the hydraulic cylinders at each lifting position are monitored. After each lifting cycle is completed, eight first monitoring points set at the support column and four second monitoring points set at the top of the steel platform are measured to obtain the verticality of the support column, the elevation change of the steel platform, the horizontal position movement and torsion data. The measured data are compared with the theoretical position data, and when the lifting height difference between different lifting positions exceeds 20mm, the out-of-tolerance data is recorded so that the deviation can be corrected and adjusted before the next lifting.

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