Cast-in-place cantilevered sloping roof movable lifting work platform and its use method
By designing a mobile lifting work platform, the problems of construction danger and inconvenience in ceiling decoration under cast-in-place cantilevered sloping roofs were solved, achieving efficient and safe construction results and reducing costs and risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA FIRST METALLURGICAL GROUP
- Filing Date
- 2023-11-07
- Publication Date
- 2026-05-19
AI Technical Summary
The construction of suspended ceiling decoration under cast-in-place cantilevered sloping roofs is highly dangerous and inconvenient to operate, and conventional methods have the problems of high risk and high cost.
A mobile lifting work platform was designed, including a cast-in-place cantilever structure with a gutter, a first track section, a second track section, a steering section, and an adjustment carrier. The platform is lifted and adjusted longitudinally through the track and cylinder drive, and is used in conjunction with hoisting equipment for construction.
It improves construction safety and efficiency, reduces construction costs, ensures construction accuracy and quality, and avoids the risks and long cycles associated with traditional methods of working at height.
Smart Images

Figure CN117489094B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of construction, specifically to a movable lifting work platform for cast-in-place cantilevered sloping roofs and its usage method. Background Technology
[0002] In the field of high-rise and even super high-rise buildings, the top floor of the building is usually designed with some cast-in-place cantilever shapes to meet the needs of the growing development. The installation of decorative ceilings under cast-in-place cantilever sloping roofs has always been a major challenge in the construction field.
[0003] Specifically, the cast-in-place cantilevered sloping roof is located around the outer perimeter of the main structure, and the suspended ceiling decoration under the cantilevered sloping roof is attached to the perimeter of the cantilevered main structure. This type of construction is characterized by its large installation volume, high precision requirements, and significant construction risks. If conventional methods are used during project implementation, it would require the erection of full-span ultra-high scaffolding, high-rise fully-covered cantilevered steel platforms, or suspended work platoons as operating platforms. This not only poses significant risks and makes quality control difficult, but the installation, use, and dismantling of the full-span ultra-high scaffolding system itself carries high risks. Furthermore, the anchoring points of the cantilevered steel and suspended work platoons overlap with the cantilevered structure, making operation difficult. Additionally, the project involves a large investment, a long construction period, and high costs. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to overcome the technical problems of high risk and inconvenience of construction of ceiling decoration under cantilevered sloping roofs in the prior art, and to provide a movable lifting operation platform for cast-in-place cantilevered sloping roofs and its usage method.
[0005] The technical solution adopted by this invention to solve its technical problem is: a movable lifting work platform for cast-in-place cantilevered sloping roofs, comprising:
[0006] A cast-in-place cantilever structure with a gutter, wherein the cast-in-place cantilever structure with a gutter is integrally cast and installed at the top side of the main concrete frame;
[0007] The first track section is disposed inside the cast-in-place cantilever structure with gutter;
[0008] The second track section is disposed at the side end of the main concrete frame;
[0009] A steering part is provided at the external corner of the main concrete frame, and one end of the steering part is connected to the second track part to drive it to turn to the other side of the main concrete frame.
[0010] An adjustment carrier is slidably connected to the first track section and the second track section respectively, and the adjustment carrier is capable of height adjustment and longitudinal adjustment;
[0011] The adjustment carrier can move horizontally along the cast-in-place cantilever structure with gutter.
[0012] Furthermore, several of the first track sections are arranged in a straight line within the gutter with the cast-in-place cantilever structure.
[0013] The first track section includes two sets of half-frames mirror-arranged in the gutter, two internally threaded cylinders disposed inside the two sets of half-frames, and a bidirectional stud spirally inserted into the two internally threaded cylinders.
[0014] When the bidirectional stud is rotated, the two internally threaded cylinders can drive the two half-frames to move away from the movable rear side of the gutter.
[0015] The two half-frames form an inverted T-shaped spacing that is movably connected to the adjustable carrier.
[0016] Furthermore, several second track sections are arranged in a straight line at the side end of the main concrete frame;
[0017] The second track section includes a steel bar disposed on the side end of the main concrete frame and an inverted T-groove disposed on the upper end of the steel bar;
[0018] The inverted T-groove is movably connected to the adjustment carrier.
[0019] Furthermore, the turning part includes a plurality of L-shaped steel frames disposed at the external corner of the main concrete frame, a support column interlocked and fitted on the plurality of L-shaped steel frames, and a support pad rotatably connected to the support column.
[0020] The support pad is connected to the bottom end of the steel bar;
[0021] The steel bar can be adjusted along the support column along with the support pad.
[0022] Furthermore, the support column includes a column unit disposed on the L-shaped steel frame, an outer spiral unit disposed on the column unit, and an inner spiral unit that is matched and disposed outside the outer spiral unit;
[0023] The inner spiral unit is rotatably connected to the support pad;
[0024] The inner spiral unit can drive the support pad to rise and fall along the outer spiral unit.
[0025] Furthermore, the adjustment carrier includes a hanger with one end inserted through the inverted T-shaped spacing, a support frame disposed in the inverted T-shaped groove, a plurality of pulleys disposed on the support frame and the hanger, and a driver disposed on the support frame or the hanger capable of driving the pulleys to move.
[0026] Several of the pulleys are respectively arranged in the inverted T-shaped spacing and in the inverted T-shaped groove;
[0027] Both the support frame and the hanger are T-shaped.
[0028] Furthermore, the adjusting carrier also includes a connecting frame that lifts and connects the hanger and the support frame, and a first cylinder disposed on the hanger;
[0029] The output shaft of the first cylinder is connected to the connecting bracket;
[0030] The first cylinder is used to drive the connecting frame to lift and adjust.
[0031] The adjustment carrier also includes an operation box that is slidably disposed on the connecting frame, and a second cylinder disposed on the operation box;
[0032] The output shaft of the second cylinder is connected to the connecting bracket;
[0033] The second cylinder is used to drive the longitudinal adjustment of the operating box.
[0034] Furthermore, the adjusting carrier also includes a variable diameter groove disposed on the connecting frame, a spring disposed in the variable diameter groove, and a pressure plate disposed in the variable diameter groove;
[0035] The support frame passes through the variable diameter groove and is connected to the pressure plate;
[0036] The pressure plate can compress the spring.
[0037] Furthermore, the inner side of the L-shaped steel frame is provided with multiple rows of steel needles from top to bottom;
[0038] The length of the steel needles in each column is shorter than the length of the steel needles in the previous column;
[0039] The L-shaped steel frame has two through holes for binding steel wires.
[0040] Furthermore, its usage method is as follows:
[0041] S1. Using auxiliary tools, multiple rows of steel needles are struck, and steel wires are inserted through the corresponding through holes to position the L-shaped steel frame at the external corner of the main concrete frame. The support column is then fixed by tightening external bolts.
[0042] S2. The first track section is hoisted into the gutter with the cast-in-place cantilever structure using hoisting equipment. The steel bar is hoisted into the main concrete frame using hoisting equipment. The steel bar is connected to the side of the main concrete frame. The height of the support plate is adjusted by the spiral rotation of the inner spiral unit on the outer spiral unit. The support plate and the steel bar are then connected.
[0043] S3. The adjusting carrier is lifted by hoisting equipment, so that the hanger and pulley are inserted in the gap between the two half-frames, and the support frame and other pulleys are inserted in the inverted T-groove. The gap between the two half-frames is expanded by the interaction between the rotation of the bidirectional stud and the internal threaded cylinder. The valley bottom is on the gutter with the cast-in-place cantilever structure with gutter.
[0044] S4. Drive the driver to rotate the pulley so that the adjustment carrier moves along the second track and the first track, drive the first cylinder to make the connecting frame move the operating box to complete the vertical height adjustment, and drive the second cylinder to make the operating box complete the front and rear longitudinal distance adjustment.
[0045] S5. After the construction of one side of the cast-in-place cantilever structure with gutter is completed, the first track section, the second track section and the adjustment carrier are disassembled. Through the rotation of the hoisting equipment and the support plate, the first track section, the second track section and the adjustment carrier are installed in the other direction of the main concrete frame, so that the cast-in-place cantilever structure with gutter can be constructed in the other direction.
[0046] The beneficial effect of the present invention is that the first track part and the second track part can be flexibly disassembled and combined at the adjacent to the cast-in-place cantilever structure with gutter, which provides good preparatory conditions for the movement of the adjustment carrier, so as to quickly adapt to the construction needs of the adjustment carrier in different directions of the cast-in-place cantilever structure with gutter.
[0047] The steering unit can drive the second track unit to turn in a non-suspended state, which simplifies the steps of secondary installation of the second track unit. When used with hoisting equipment, it can greatly improve the efficiency of changing the installation position of the second track unit and also improve the safety of construction operations.
[0048] The position of the adjustment carrier can be adjusted by lifting and moving the cast-in-place cantilever structure with gutter, as well as moving it longitudinally forward and backward. This ensures the control of construction accuracy and quality, and allows for timely handling of construction problems. Attached Figure Description
[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0050] Figure 1 This is a perspective view of a preferred embodiment of the present invention;
[0051] Figure 2 This is another perspective view of a preferred embodiment of the present invention;
[0052] Figure 3 This is the invention Figure 2 Enlarged view of point A in the middle;
[0053] Figure 4 This is a three-dimensional structural diagram of the steering part of the present invention;
[0054] Figure 5 This is a perspective view of the L-shaped steel frame of the present invention;
[0055] Figure 6 This is a perspective view of the adjustment carrier of the present invention;
[0056] Figure 7 This is another perspective view of the adjustment carrier of the present invention;
[0057] Figure 8 This is a side view of the internal structure of the connecting frame of the present invention.
[0058] In the picture:
[0059] 1. Cast-in-place cantilever structure with gutter; 2. First track section; 21. Semi-frame; 22. Internally threaded cylinder; 23. Bidirectional stud; 3. Second track section; 31. Steel bar; 32. Inverted T-groove; 4. Turning section; 41. L-shaped steel frame; 42. Support column; 421. Column unit; 422. External spiral unit; 423. Internal spiral unit; 43. Support pad; 5. Adjustment carrier; 51. Hanger; 52. Support frame; 53. Pulley; 54. Connecting frame; 55. First cylinder; 56. Control box; 57. Second cylinder; 58. Variable diameter groove; 59. Spring; 6. Steel needle; 7. Through hole; 8. Main concrete frame; 9. Pressure plate. Detailed Implementation
[0060] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0061] like Figure 1-8 As shown, the present invention provides a movable lifting work platform for cast-in-place cantilevered sloping roofs, comprising:
[0062] A cast-in-place cantilever structure 1 with a gutter is integrally cast and installed on the top side of the main concrete frame 8.
[0063] First track section 2, the first track section 2 is disposed inside the cast-in-place cantilever structure 1 with gutter;
[0064] The second track section 3 is disposed on the side end of the main concrete frame 8;
[0065] The steering part 4 is located at the external corner of the main concrete frame 8, and one end of the steering part 4 is connected to the second track part 3 to drive it to turn to the other side of the main concrete frame 8.
[0066] An adjusting carrier 5 is slidably connected to the first track section 2 and the second track section 3 respectively, and the adjusting carrier 5 is capable of height adjustment and longitudinal adjustment.
[0067] The adjusting carrier 5 can move horizontally along the cast-in-place cantilever structure 1 with gutter. Specifically, the first track 2 and the second track 3 can be flexibly disassembled and combined adjacent to the cast-in-place cantilever structure 1 with gutter, providing good preparatory conditions for the movement of the adjusting carrier 5 to quickly adapt to the construction needs of the adjusting carrier 5 in different directions of the cast-in-place cantilever structure 1 with gutter. The turning part 4 can drive the second track 3 to turn in a non-suspended state, simplifying the steps of secondary installation of the second track 3. With the help of hoisting equipment, it can greatly improve the efficiency of changing the installation position of the second track 3 and also improve the safety of construction operations. The position of the adjusting carrier 5 can be based on the cast-in-place cantilever structure with gutter. 1. Lifting and longitudinal movement ensures control over construction accuracy and quality, and allows for timely handling of construction problems. This invention is highly adaptable and efficient for high-altitude decoration operations. It utilizes a linearly movable work platform, allowing for flexible adjustment of the working height according to different working conditions. This ensures fast and efficient operation under cantilevered eaves, avoiding the low efficiency and heavy workload of traditional methods such as erecting full-span ultra-high scaffolding, high-rise cantilevered steel platforms, or suspended scaffolds. The work platform uses a track-based movement: linear tracks are installed on each floor, enabling operation while moving, similar to an aerial train, with automatic control of stopping and moving. This ensures the continuity and operability of operations under cantilevered eaves, resulting in low construction costs. The invention's simple structure minimizes the workload and time required for use and disassembly, reducing the costs and long usage periods associated with traditional full-span ultra-high scaffolding and high-rise cantilevered steel platforms. Therefore, this invention significantly reduces construction costs and improves project efficiency.
[0068] Optionally, a number of the first track sections 2 are arranged in a line in the gutter of the cast-in-place cantilever structure 1 with gutter. The corresponding number of the first track sections 2 can be moved to another position after the adjustment carrier 5 passes by, so as to be reused to meet the needs of its long trajectory activity process.
[0069] The first track section 2 includes two sets of half-frames 21 mirror-arranged in the gutter, two internally threaded cylinders 22 disposed inside the two sets of half-frames 21, and a bidirectional stud 23 spirally inserted into the two internally threaded cylinders 22.
[0070] When the bidirectional stud 23 is rotated, the two internally threaded cylinders 22 can drive the two half-frames 21 to move away from the movable rear side of the gutter.
[0071] The two semi-frames 21 form an inverted T-shaped spacing that movably connects the adjusting carrier 5. Specifically, the threads of the bidirectional stud 23 match the two opposing internal threaded cylinders 22. After the bidirectional stud 23 and the internal threaded cylinders 22 are installed, they can limit the movement trajectory of the adjusting carrier 5. The blocking effect of the positions of the bidirectional stud 23 and the internal threaded cylinders 22 prevents the adjusting carrier 5 from leaving the predetermined track during movement. Furthermore, the bidirectional stud 23 and the two internal threaded cylinders 22 interact to fit tightly against the gutter, ensuring the firmness of the installation position and making the movement of the adjusting carrier 5 smooth.
[0072] Optionally, a number of second track sections 3 are arranged in a line on the side of the main concrete frame 8. The corresponding number of second track sections 3, in conjunction with the first track section 2, can move to another position after the adjustment carrier 5 passes by, so as to be reused to meet the needs of its long trajectory activity process.
[0073] The second track section 3 includes a steel bar 31 disposed on the side end of the main concrete frame, and an inverted T-groove 32 disposed on the upper end of the steel bar 31;
[0074] The inverted T-groove 32 is movably connected to the adjustment carrier 5. Specifically, the inverted T-groove 32 supports the adjustment carrier 5 during its movement. Together with the half-frame 21, it suspends the adjustment carrier 5, making the movement of the adjustment carrier 5 more balanced.
[0075] Optionally, the turning part 4 includes a plurality of L-shaped steel frames 41 disposed at the external corner of the main concrete frame 8, a support column 42 interlocked and fitted on the plurality of L-shaped steel frames 41, and a support pad 43 rotatably connected to the support column 42.
[0076] The support pad 43 is connected to the bottom end of the steel bar 31;
[0077] The steel bar 31 can be adjusted along the support column 42 along with the support pad 43. Specifically, the L-shaped steel frame 41 can be attached to the main concrete frame 8 on two sides to increase adhesion. The support column 42 can concentrate the adhesion at several positions. The support pad 43 can further support the steel bar 31 and can rotate to cooperate with the hoisting equipment to change the installation position of the steel bar 31, ensuring the efficiency of changing the installation position of the steel bar 31 and reducing its working cost.
[0078] Optionally, the support column 42 includes a column unit 421 disposed on the L-shaped steel frame 41, an outer spiral unit 422 disposed on the column unit 421, and an inner spiral unit 423 disposed outside the outer spiral unit 422.
[0079] The inner spiral unit 423 is rotatably connected to the support pad 43;
[0080] The inner spiral unit 423 can drive the support pad 43 to rise and fall along the outer spiral unit 422. Specifically, the inner spiral unit 423 can interact with the outer spiral unit 422 to adjust and change the height of the support pad 43, so that the support pad 43 can fit the steel strips 31 at different installation heights, making the adjustment and support of the steel strips 31 more convenient.
[0081] Optionally, the adjustment carrier 5 includes a hanger 51 with one end inserted through the inverted T-shaped spacing, a support frame 52 disposed in the inverted T-shaped groove 32, a plurality of pulleys 53 disposed on the support frame 52 and the hanger 51, and a driver disposed on the support frame 52 or the hanger 51 capable of driving the pulleys 53 to move. The driver is a publicly available device that can drive the pulleys 53 to rotate, and is not limited here.
[0082] Several of the pulleys 53 are respectively disposed in the inverted T-shaped spacing and the inverted T-shaped groove 32;
[0083] Both the support frame 52 and the hanger 51 are T-shaped. Specifically, the pulley 53 can drive the adjustment carrier 5 to move and hover as a whole under the action of the driver to ensure the normal operation of efficient work. The inverted T-shaped spacing and the inverted T-shaped groove 32 respectively limit and protect the hanger 51 and the support frame 52 in the upward direction, so that the adjustment carrier 5 cannot be deviated in the upward direction during the activity, and avoid the adjustment carrier 5 from malfunctioning due to this reason.
[0084] Optionally, the adjusting carrier 5 further includes a connecting frame 54 that lifts and connects the hanger 51 and the support frame 52, and a first cylinder 55 disposed on the hanger 51;
[0085] The output shaft of the first cylinder 55 is connected to the connecting bracket 54;
[0086] The first cylinder 55 is used to drive the connecting frame 54 to adjust its height.
[0087] The adjustment carrier 5 also includes an operation box 56 slidably disposed on the connecting frame 54, and a second cylinder 57 disposed on the operation box 56;
[0088] The output shaft of the second cylinder 57 is connected to the connecting bracket 54;
[0089] The second cylinder 57 is used to drive the longitudinal adjustment of the operating box 56. Specifically, under the driving action of the first cylinder 55, the connecting frame 54 can drive the operating box 56 to rise and fall. Under the driving action of the second cylinder 57, the operating box 56 can move longitudinally back and forth. When the operator is placed in the operating box 56, construction operations can be carried out at different slope points at the bottom of the cast-in-place cantilever structure 1 with gutter. Its work can expand the construction angle and avoid construction dead angles.
[0090] Optionally, the adjusting carrier 5 further includes a variable diameter groove 58 disposed on the connecting frame 54, a spring 59 disposed in the variable diameter groove 58, and a pressure plate 9 disposed in the variable diameter groove 58.
[0091] The support frame 52 passes through the variable diameter groove 58 and is connected to the pressure plate 9;
[0092] The pressure plate 9 can compress the spring 59. Specifically, the variable diameter groove 58 is wide in the middle and narrow at the top and bottom, which restricts the extension and contraction space of the spring 59. The pressure plate 9 is connected to the support frame 52, so that the support frame 52 cannot be separated from the variable diameter groove 58. When the operating box 56 is subjected to vibration, the connecting frame 54 compresses the spring 59 to perform shock absorption. The variable diameter groove 58 extends partially through the support frame 52. When the connecting frame 54 drives the operating box 56 to descend, the support frame 52 and the spring 59 also perform the above-mentioned shock absorption operation.
[0093] Furthermore, the inner side of the L-shaped steel frame 41 is provided with multiple rows of steel needles 6 from top to bottom;
[0094] The length of the steel needle 6 in each column is less than the length of the steel needle 6 in the previous column;
[0095] The L-shaped steel frame 41 is provided with two through holes 7 for binding steel wires. Specifically, when the L-shaped steel frame 41 is pre-positioned, the lower half can be gradually brought closer to the main concrete frame 8. Short steel needles 6 can be driven into the main concrete frame 8 through an external hammering device, and then long steel needles 6 can be driven into the main concrete frame 8 through an external hammering device. This makes the positioning process of the L-shaped steel frame 41 more convenient and stable, as it progresses from easy to difficult and from loose to tight. The process of binding the main concrete frame 8 by inserting steel wires through the through holes 7 increases the positioning measures of the L-shaped steel frame 41, enabling the L-shaped steel frame 41 to overcome difficult pre-positioning environments and work in a variety of ways.
[0096] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A movable lifting work platform for cast-in-place cantilevered sloping roofs, characterized in that, include: A cast-in-place cantilever structure with gutter (1) is integrally cast and installed on the top side of the main concrete frame (8); The first track section (2) is disposed inside the cast-in-place cantilever structure (1) with gutter; The second track section (3) is disposed on the side end of the main concrete frame (8); A steering part (4) is provided at the outer corner of the main concrete frame (8), and one end of the steering part (4) is connected to the second track part (3) to drive it to turn to the other side of the main concrete frame (8). Adjustable carrier (5), which is slidably connected to the first track part (2) and the second track part (3) respectively, and the adjustable carrier (5) can be adjusted in height and in the longitudinal direction; The adjusting carrier (5) can move horizontally along the cast-in-place cantilever structure (1) with gutter.
2. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 1, characterized in that, Several of the first track sections (2) are arranged in a line inside the gutter of the cast-in-place cantilever structure (1) with gutter; The first track section (2) includes two sets of half-frames (21) mirror-arranged in the gutter, two internally threaded cylinders (22) disposed inside the two sets of half-frames (21), and a bidirectional stud (23) spirally inserted into the two internally threaded cylinders (22). When the bidirectional stud (23) is rotated, the two internal threaded cylinders (22) can drive the two half-frames (21) to move away from the movable rear side gutter. The two half-frames (21) form an inverted T-shaped spacing that is movably connected to the adjustable carrier (5).
3. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 2, characterized in that, Several second track sections (3) are arranged in a straight line at the side end of the main concrete frame (8); The second track section (3) includes a steel bar (31) disposed on the side end of the main concrete frame (8) and an inverted T-groove (32) disposed on the upper end of the steel bar (31). The inverted T-groove (32) is movably connected to the adjustment carrier (5).
4. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 3, characterized in that, The turning part (4) includes several L-shaped steel frames (41) set at the external corner of the main concrete frame (8), a support column (42) interlocked and fitted on the several L-shaped steel frames (41), and a support pad (43) rotatably connected to the support column (42). The support pad (43) is connected to the bottom end of the steel strip (31); The steel bar (31) can be adjusted along the support column (42) along with the support pad (43).
5. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 4, characterized in that, The support column (42) includes a column unit (421) disposed on the L-shaped steel frame (41), an outer spiral unit (422) disposed on the column unit (421), and an inner spiral unit (423) disposed outside the outer spiral unit (422). The inner spiral unit (423) is rotatably connected to the support pad (43); The inner spiral unit (423) can drive the support pad (43) to rise and fall along the outer spiral unit (422).
6. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 5, characterized in that, The adjustment carrier (5) includes a hanger (51) with one end inserted through the inverted T-shaped spacing, a support frame (52) set in the inverted T-shaped groove (32), a plurality of pulleys (53) set on the support frame (52) and the hanger (51), and a driver set on the support frame (52) or the hanger (51) capable of driving the pulleys (53) to move. Several of the pulleys (53) are respectively arranged in the inverted T-shaped spacing and in the inverted T-shaped groove (32); Both the support frame (52) and the support frame (52) are T-shaped.
7. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 6, characterized in that, The adjustment carrier (5) further includes a connecting frame (54) that lifts and connects the hanger (51) and the support frame (52), and a first cylinder (55) disposed on the hanger (51). The output shaft of the first cylinder (55) is connected to the connecting bracket (54); The first cylinder (55) is used to drive the connecting frame (54) to adjust its height; The adjustment carrier (5) also includes an operation box (56) slidably disposed on the connecting frame (54), and a second cylinder (57) disposed on the operation box (56); The output shaft of the second cylinder (57) is connected to the connecting bracket (54); The second cylinder (57) is used to drive the operation box (56) to adjust longitudinally.
8. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 7, characterized in that, The adjusting carrier (5) also includes a variable diameter groove (58) provided on the connecting frame (54), a spring (59) provided in the variable diameter groove (58), and a pressure plate (9) provided in the variable diameter groove (58); The support frame (52) passes through the variable diameter groove (58) and is connected to the pressure plate (9); The pressure plate (9) can compress the spring (59).
9. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in claim 4, characterized in that, The inner side of the L-shaped steel frame (41) is provided with multiple rows of steel needles (6) from top to bottom. The length of each column of steel needles (6) is less than the length of the previous column of steel needles (6); The L-shaped steel frame (41) is provided with two through holes (7) for binding steel wires.
10. The movable lifting work platform for cast-in-place cantilevered sloping roofs as described in any one of claims 1-9, wherein its method of use is as follows: Step 1: Use auxiliary tools to strike multiple rows of steel needles (6), insert steel wires through the corresponding through holes (7) to complete the positioning of the L steel frame at the external corner of the main concrete frame (8), and install it by tightening external bolts to fix the position of the support column (42); The second step is to use a hoisting device to hoist the first track section (2) into the gutter of the cast-in-place cantilever structure (1) with gutter, and use a hoisting device to hoist the steel bar (31) to the side of the main concrete frame (8), connect the steel bar (31) to the side of the main concrete frame (8), and adjust the height of the support plate (43) by the spiral rotation of the inner spiral unit (423) on the outer spiral unit (422), and connect the support plate (43) and the steel bar (31). The third step is to lift the adjustment carrier (5) using the hoisting equipment, so that the hanger (51) and pulley (53) are inserted into the gap between the two half-frames (21), and the support frame (52) and other pulleys (53) are inserted into the inverted T-groove (32). The distance between the two half-frames (21) is expanded by the interaction between the rotation of the bidirectional stud (23) and the internal threaded cylinder (22). The valley bottom is on the gutter of the cast-in-place cantilever structure (1) with gutter. Fourth step: Drive the driver to rotate the pulley (53) so that the adjustment carrier (5) moves along the second track (3) and the first track (2), drive the first cylinder (55) so that the connecting frame (54) drives the operating box (56) to complete the vertical height adjustment, drive the second cylinder (57) so that the operating box completes the front and rear longitudinal distance adjustment; Step 5: After the construction of one side of the cast-in-place cantilever structure (1) with gutter is completed, disassemble the first track part (2), the second track part (3) and the adjustment carrier (5). Through the rotation of the hoisting equipment and the support plate (43), the first track part (2), the second track part (3) and the adjustment carrier (5) are installed on the other side of the main concrete frame (8), so that the cast-in-place cantilever structure (1) with gutter can be constructed in the other direction.