Lifting scaffold for backfilling soil foundation

Abstract

The invention relates to the technical field of scaffolds, and discloses a lifting scaffold for backfilling a soil foundation, the lifting scaffold comprises a supporting frame and further comprises a supporting device, the supporting device comprises a supporting structure and an adjusting structure, a fixed foot pad is hinged to the outer side of the supporting frame, and a movable plate is fixedly connected to one side of the top end of the fixed foot pad. The supporting rod is fixedly connected to the upper portion of the movable plate, the sliding frame is fixedly connected to one end of the movable plate, the sliding clamping grooves are formed in the two sides of the sliding frame, the clamping sliding blocks move and drive the movable foot pads to move at the same time, the movable foot pads are rotated to make the movable foot pads spirally ascend, and at the moment, the clamping sliding blocks move towards the outer side of the supporting frame. And then the movable foot pad is rotated to spirally descend and make contact with the ground, so that the supporting area is enlarged, the supporting frame can be prevented from toppling over in strong wind weather or under the collision condition, the stability of the device is further improved, and the safety of workers during working is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of scaffolding, and specifically to a lifting scaffolding for backfill foundation. Background Technique

[0002] A scaffolding refers to a working platform erected to ensure the smooth progress of each construction process, that is, construction workers can perform high-altitude operations with the help of the scaffolding. The existing scaffolding support structure is not stable enough and cannot be adjusted. When the scaffolding is shaken by environmental factors, it is easy to topple.

[0003] The invention patent with the patent number CN202123200231.1 discloses a lifting and splicing scaffolding for building construction. The invention is provided with a lifting platform, and lifting holes are opened in the middle of each of the three working plates. Workers can directly take the lifting platform up to the middle and top working plates for operation, which greatly facilitates the workers and reduces the risk brought by the workers climbing the ladder, ensuring the safety of the workers. By setting universal wheels and a lifting base, the movement of the scaffolding is greatly facilitated. When it is necessary to move, only need to push the scaffolding. When it is necessary to operate, only need to turn the bolt thread at the top of the lifting base to lower the base. By setting the main support column, working plate, support inclined plate, support beam and other parts into a convenient disassembly and assembly mode, the installation and disassembly are greatly facilitated, saving working time and reducing the burden on the workers. Although this patent solves the above problems, there is still a problem that the support structure is not stable enough, and it is easy to topple when the scaffolding is shaken by environmental factors. Therefore, it is very necessary to design a lifting scaffolding for backfill foundation that can adjust the support area, can prevent the support frame from toppling in strong wind weather or when impacted, further improve the stability of the device, and ensure the safety of workers during work. Summary of the Invention

[0004] The purpose of the present invention is to provide a lifting scaffolding for backfill foundation to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A lifting scaffold for backfilled soil foundation, including a support frame, and further including a support device. The support device includes a support structure and an adjustment structure. The support structure includes a fixed foot pad, a moving plate, and a support rod. The fixed foot pad is hinged to the outside of the support frame. The moving plate is fixedly connected to one side of the top end of the fixed foot pad. The support rod is fixedly connected above the moving plate. The adjustment structure includes a sliding frame, a sliding groove, a clamping slider, a moving foot pad, and a threaded rotating rod. The sliding frame is fixedly connected to one end of the moving plate. The sliding groove is opened on both sides of the sliding frame. The clamping slider is slidably connected to the inside of the sliding frame. The moving foot pad is threadedly connected to the inside of the clamping slider. The threaded rotating rod is hinged to one side of the sliding frame. The support rod is hinged to the outside of the support frame. The clamping slider is slidably connected to the inside of the sliding groove. The threaded rotating rod is threadedly connected to the inside of the clamping slider. The support frame contacts the ground through the fixed foot pad to provide support force for the whole device. The support rod is clamped on the moving plate, and the support rod, the moving plate and the support frame form a triangular support structure to make the device more stable. Rotate the threaded rotating rod, and the threaded rotating rod drives the clamping slider to move in the sliding frame to adjust the position. The clamping slider penetrates out of the sliding frame through the sliding groove, so as to be stuck in the sliding frame to maintain a stable movement. While the clamping slider moves, it drives the moving foot pad to move. Rotate the moving foot pad to make the moving foot pad spiral upward. At this time, make the clamping slider move towards the outside of the support frame, and then rotate the moving foot pad to make the moving foot pad spiral downward and contact the ground, thereby expanding the support area, preventing the support frame from tipping over in strong wind weather or under impact, further improving the stability of the device, and ensuring the safety of the staff during work.

[0006] According to the above technical solution, a lifting device is provided inside the fixed foot pad. The lifting device includes a lifting structure and a stable buffering structure. The lifting structure includes a lifting platform, a pulley block, and an output shaft. The lifting platform is slidably connected to the inside of the support frame. The pulley block is hingedly connected to both sides of the support frame. The output shaft is rotatably connected to the bottom of the support frame. The stable buffering structure includes a clamping plate, a first slide rail, a buffer column, a sleeve, a damper, and a limiting plate. The clamping plate is fixedly connected to both sides of the lifting platform. The first slide rail is fixedly connected to the inside of the support rod. The buffer column is fixedly connected to the bottom of the lifting platform. The sleeve is fixedly connected to the bottom of the support frame. The damper is fixedly connected to the inside of the sleeve. The limiting plate is fixedly connected to both sides of the support frame. The pulley block is fixedly connected to the bottom of the lifting platform and the surface of the output shaft. A motor is provided at the front end of the output shaft and the motor is fixedly connected to the bottom of the support frame. The clamping plate is slidably connected to the inside of the first slide rail. The buffer column is slidably connected to the inside of the sleeve. The buffer column is movably connected to the top end of the damper. The damper is fixedly connected to the bottom of the support frame. When the motor is started, the motor drives the output shaft to rotate clockwise. The output shaft drives the pulley block to operate. When the pulley block operates, it lifts the lifting platform towards the top of the support frame, thereby driving the staff to rise, facilitating the up and down movement of the staff. When the lifting platform moves up and down, it drives the clamping plate to move up and down inside the first slide rail. The first slide rail limits the clamping plate, so that the lifting platform will not shift and shake during the lifting process, improving the stability. When the lifting platform is about to descend to the bottom of the support frame, the buffer column fixed to its bottom end inserts into the sleeve and then presses the damper, so that the force of the descending lifting platform is concentrated on the damper. After being compressed, the elastic effect of the damper slows down the descending force, so that the lifting platform can descend and stop smoothly, further improving the stability.

[0007] According to the above technical solution, a conveying device is provided at the rear end of the output shaft. The conveying device includes a conveying structure and a fixing structure. The conveying structure includes a gear screw group, a bidirectional lead screw, a sliding shaft, an X-shaped lifting rod, and an L-shaped conveying table. The gear screw group is fixedly connected to the rear end of the output shaft. The bidirectional lead screw is fixedly connected to both sides of the gear screw group. The sliding shaft is slidably connected to the surface of the bidirectional lead screw. The X-shaped lifting rod is hinged to one side of the sliding shaft. The L-shaped conveying table is hinged to the front side of the X-shaped lifting rod. The fixing structure includes a limit slider, a second slide rail, a first lock, and a clamping block. The limit slider is fixedly connected to the front side of the L-shaped conveying table. The second slide rail is fixedly connected to the rear side of the support frame. The first lock is hinged to the front and rear sides of the bottom end of the lifting table. The clamping block is fixedly connected to the side of the limit plate. The bidirectional lead screw is hinged to the rear side of the support frame. The limit slider is slidably connected to the inner side of the second slide rail. The first lock is clamped to the front and rear sides of the support frame. The clamping block is sleeved on the surface of the pulley group. After the lifting table stops, the first lock is locked with the support frame to fix the lifting table to the support frame. At this time, the lifting table is not affected by the pulley group. And when the output shaft drives the pulley group to operate, due to the limitation of the clamping block, the belt on the pulley group is kept fixed. Then the output shaft is rotated counterclockwise. The output shaft drives the gear screw group to operate. The gear screw group drives the bidirectional lead screw to rotate. The bidirectional lead screw drives the sliding shaft to reciprocate. The two sliding shafts move towards each other to vertically contract the X-shaped lifting rod, thereby driving the conveying table to rise. The two sliding shafts move in the opposite direction to horizontally contract the X-shaped lifting rod, thereby driving the conveying table to descend. The staff places the object on the conveying table and makes the conveying table rise, which can conveniently and quickly send the object to the lifting table, facilitating construction transportation and improving construction efficiency. When the conveying table rises and falls, it drives the limit slider to rise and fall in the second slide rail. The second slide rail limits the limit slider, so that the conveying table remains stable during the lifting and falling process, improving the stability of object transportation and preventing the object from shaking and falling, further enhancing the construction efficiency.

[0008] According to the above technical solution, an expansion device is provided above the L-shaped conveying platform. The expansion device includes a folding structure and a protection structure. The folding structure includes a connecting plate, a notch, and a folding plate. The connecting plate is fixedly connected to both sides of the lifting platform. The notch is opened on the inner side of the connecting plate. The folding plate is hingedly connected above the connecting plate. The protection structure includes a side protection frame, a movable protection frame, a locking protection frame, and a second lock. The side protection frame is hingedly connected to one side of the folding plate. The movable protection frame is hingedly connected to the front and rear sides of the lifting platform. The locking protection frame is hingedly connected to the front and rear sides of the lifting platform. The second lock is fixedly connected to one side of the locking protection frame. The second lock is clamped with one end of the movable protection frame. The movable protection frame is clamped with the front and rear sides of the folding plate. The locking protection frame is clamped with the front and rear sides of the folding plate. When the lifting platform ascends and descends, it drives the connecting plate to ascend and descend. The connecting plate drives the folding plate to ascend and descend, vertically flipping the folding plate to be parallel to the bottom of the lifting platform, which can expand the lifting area, so that multiple people or more items can be lifted. After vertically flipping the folding plate, then vertically flip the side protection frame. At this time, the side protection frame can block the side of the folding plate. Then open the second lock to separate the movable protection frame and the locking protection frame, and then respectively fit and clamp the movable protection frame and the locking protection frame with the front and rear sides of the connecting plate, so that the front and rear sides of the folding plate are blocked, protecting the entire folding plate, ensuring safety while increasing the lifting area, and thus being able to more safely and effectively drive more people and objects to ascend.

[0009] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by providing a sliding frame, a sliding card slot, a clamping slider, and a moving foot pad, when the clamping slider moves, it drives the moving foot pad to move. Rotate the moving foot pad to make the moving foot pad spiral upward. At this time, move the clamping slider in the outer direction of the support frame, and then rotate the moving foot pad to make the moving foot pad spiral downward and contact the ground, thereby expanding the support area, preventing the support frame from tipping over in strong wind weather or when impacted, further improving the stability of the device, and ensuring the safety of the staff during work. In the present invention, by providing a clamping plate, a first slide rail, a buffer column, and a sleeve, when the lifting platform is about to descend to the bottom of the support frame, the buffer column fixed to its bottom end inserts into the sleeve and then squeezes the damper, concentrating the force of the descending lifting platform on the damper. After being compressed, the elastic effect of the damper slows down the descending force, so that the lifting platform can descend and stop smoothly, further improving the stability. In the present invention, by providing a limit slider, a second slide rail, a first lock, and a clamping block, when a worker places an object on the conveying platform and the conveying platform rises, the object can be conveniently and quickly sent to the lifting platform, facilitating construction transportation and improving construction efficiency. When the conveying platform rises and falls, it drives the limit slider to rise and fall within the second slide rail, and the second slide rail limits the limit slider, thereby keeping the conveying platform stable during the lifting and lowering process, improving the stability of object transportation, preventing the object from shaking and falling, and further enhancing construction efficiency. In the present invention, by providing a folding plate, a side guard frame, a movable guard frame, and a locking guard frame, after the folding plate is vertically flipped and then the side guard frame is vertically flipped, at this time, the side guard frame can block the side of the folding plate. Then, the second lock is opened to separate the movable guard frame and the locking guard frame, and then the movable guard frame and the locking guard frame are respectively fitted and clamped to the front and rear sides of the connecting plate, so that the front and rear sides of the folding plate are blocked, protecting the entire folding plate. While increasing the lifting area, safety is ensured, and thus more people and objects can be driven to rise more safely and effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0011] In the drawings: Figure 1 is the overall three-axis orthographic solid structure diagram of the left side of the present invention; Figure 2 is the three-axis orthographic sectional solid structure diagram of the right side of the present invention; Figure 3 is the three-axis orthographic solid structure diagram of the right side of the support device of the present invention; Figure 4 is the present invention Figure 3 the enlarged structure diagram of A in; Figure 5 is the three-axis orthographic sectional solid structure diagram of the right side of the lifting device of the present invention; Figure 6 is the present invention Figure 5 the enlarged structure diagram of B in; Figure 7 is the rear-side three-axis orthographic exploded solid structure diagram of the conveying device of the present invention; Figure 8 is the present invention Figure 7 the enlarged structure diagram of C in; Figure 9 is the three-axis orthographic solid structure diagram of the left side of the expansion device of the present invention; In the figure: 1, support frame; 2, support device; 21, fixed foot pad; 22, moving plate; 23, support rod; 24, sliding frame; 25, sliding card slot; 26, clamping slider; 27, moving foot pad; 28, threaded rotating rod; 3, lifting device; 31, lifting platform; 32, pulley block; 33, output shaft; 34, clamping plate; 35, first slide rail; 36, buffer column; 37, sleeve; 38, damper; 39, limiting plate; 4, conveying device; 41, gear screw group; 42, bidirectional lead screw; 43, sliding shaft; 44, X-shaped lifting rod; 45, conveying platform; 46, limiting slider; 47, second slide rail; 48, first lock; 49, clamping block; 5, expansion device; 51, connecting plate; 52, notch; 53, folding plate; 54, side protection frame; 55, movable protection frame; 56, locking protection frame; 57, second lock. Detailed implementation manners

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0013] Please refer to Figures 1-4, an embodiment of the present invention is: a lifting scaffold for backfilled soil foundation, including a support frame 1, and further including a support device 2. The support device 2 includes a support structure and an adjustment structure. The support structure includes a fixed foot pad 21, a moving plate 22, and a support rod 23. The fixed foot pad 21 is hinged to the outside of the support frame 1. The moving plate 22 is fixedly connected to one side of the top of the fixed foot pad 21. The support rod 23 is fixedly connected above the moving plate 22. The support frame 1 contacts the bottom surface through the fixed foot pad 21 to provide support force for the entire device. The support rod 23 is clamped on the moving plate 22. The support rod 23, the moving plate 22, and the support frame 1 form a triangular support structure to make the device more stable. The adjustment structure includes a sliding frame 24, a sliding groove 25, a clamping slider 26, a moving foot pad 27, and a threaded rotating rod 28. The sliding frame 24 is fixedly connected to one end of the moving plate 22. The sliding groove 25 is opened on both sides of the sliding frame 24. The clamping slider 26 is slidably connected to the inside of the sliding frame 24. The moving foot pad 27 is threadedly connected to the inside of the clamping slider 26. The threaded rotating rod 28 is hinged to one side of the sliding frame 24. The support rod 23 is hinged to the outside of the support frame 1. The clamping slider 26 is slidably connected to the inside of the sliding groove 25. The threaded rotating rod 28 is threadedly connected to the inside of the clamping slider 26. Rotate the threaded rotating rod 28, and the threaded rotating rod 28 drives the clamping slider 26 to move inside the sliding frame 24 to adjust the position. The clamping slider 26 passes through the sliding frame 24 through the sliding groove 25, so as to be stuck in the sliding frame 24 to maintain stable movement. While the clamping slider 26 moves, it drives the moving foot pad 27 to move. Rotate the moving foot pad 27 to make the moving foot pad 27 spiral upward. At this time, then move the clamping slider 26 in the outer direction of the support frame 1, and then rotate the moving foot pad 27 to make the moving foot pad 27 spiral downward and contact the ground, thereby expanding the support area, preventing the support frame 1 from tipping over in strong wind weather or under impact, further improving the stability of the device, and ensuring the safety of the staff during work.

[0014] Working principle: The support frame 1 contacts the bottom surface through the fixed foot pad 21 to provide support force for the entire device. The support rod 23 is clamped on the moving plate 22. The support rod 23, the moving plate 22, and the support frame 1 form a triangular support structure to make the device more stable. Rotate the threaded rotating rod 28, and the threaded rotating rod 28 drives the clamping slider 26 to move inside the sliding frame 24 to adjust the position. The clamping slider 26 passes through the sliding frame 24 through the sliding groove 25, so as to be stuck in the sliding frame 24 to maintain stable movement. While the clamping slider 26 moves, it drives the moving foot pad 27 to move. Rotate the moving foot pad 27 to make the moving foot pad 27 spiral upward. At this time, then move the clamping slider 26 in the outer direction of the support frame 1, and then rotate the moving foot pad 27 to make the moving foot pad 27 spiral downward and contact the ground, thereby expanding the support area, preventing the support frame 1 from tipping over in strong wind weather or under impact, further improving the stability of the device, and ensuring the safety of the staff during work.

[0015] Please refer to Figures 5-6 Based on the above embodiments, in another embodiment of the present invention, it includes a lifting device 3. The lifting device 3 includes a lifting structure and a stable buffering structure. The lifting structure includes a lifting platform 31, a pulley block 32, and an output shaft 33. The lifting platform 31 is slidably connected to the inner side of the support frame 1. The pulley block 32 is hingedly connected to both sides of the support frame 1. The output shaft 33 is rotatably connected to the bottom of the support frame 1. When the motor is started, the motor drives the output shaft 33 to rotate clockwise. The output shaft 33 drives the pulley block 32 to operate. When the pulley block 32 operates, it lifts the lifting platform 31 towards the top of the support frame 1, so that the lifting platform 31 drives the staff to rise, facilitating the up and down movement of the staff. The stable buffering structure includes a clamping plate 34, a first slide rail 35, a buffer column 36, a sleeve 37, a damper 38, and a limiting plate 39. The clamping plate 34 is fixedly connected to both sides of the lifting platform 31. The first slide rail 35 is fixedly connected to the inner side of the support rod 23. The buffer column 36 is fixedly connected to the bottom of the lifting platform 31. The sleeve 37 is fixedly connected to the bottom of the support frame 1. The damper 38 is fixedly connected to the inside of the sleeve 37. The limiting plate 39 is fixedly connected to both sides of the support frame 1. The pulley block 32 is fixedly connected to the bottom of the lifting platform 31, and the pulley block 32 is fixedly connected to the surface of the output shaft 33. There is a motor at the front end of the output shaft 33 and this motor is fixedly connected to the bottom of the support frame 1. The clamping plate 34 is slidably connected to the inner side of the first slide rail 35. The buffer column 36 is slidably connected to the inner side of the sleeve 37. The buffer column 36 is movably connected to the top end of the damper 38. The damper 38 is fixedly connected to the bottom of the support frame 1. When the lifting platform 31 moves up and down, it drives the clamping plate 34 to move up and down inside the first slide rail 35. The first slide rail 35 limits the clamping plate 34, so that the lifting platform 31 will not shift and shake during the lifting process, improving the stability. When the lifting platform 31 is about to descend to the bottom of the support frame 1, the buffer column 36 fixed to its bottom end inserts into the sleeve 37 and then presses the damper 38, so that the force for the lifting platform 31 to descend is concentrated on the damper 38. After being compressed, the elastic effect of the damper 38 itself slows down the descending force, so that the lifting platform 31 can descend smoothly and stop, further improving the stability.

[0016] Working principle: Start the motor. The motor drives the output shaft 33 to rotate clockwise. The output shaft 33 drives the pulley block 32 to operate. When the pulley block 32 operates, it lifts the lifting platform 31 to the top of the support frame 1, so that the lifting platform 31 drives the staff to rise, facilitating the up and down movement of the staff. When the lifting platform 31 moves up and down, it drives the clamping plate 34 to move up and down inside the first slide rail 35. The first slide rail 35 positions the clamping plate 34, so that the lifting platform 31 will not deviate or shake during the lifting process, improving the stability. When the lifting platform 31 is about to descend to the bottom of the support frame 1, the buffer column 36 fixed to its bottom end inserts into the sleeve 37 and then squeezes the damper 38, so that the force of the descending lifting platform 31 is concentrated on the damper 38. After being compressed, the elastic effect of the damper 38 slows down the descending force, so that the lifting platform 31 can descend and stop smoothly, further improving the stability.

[0017] Please refer to Figures 7-9, on the basis of the above embodiments, in another embodiment of the present invention, it includes a conveying device 4. The conveying device 4 includes a conveying structure and a fixing structure. The conveying structure includes a gear screw group 41, a bidirectional lead screw 42, a sliding shaft 43, an X-shaped lifting rod 44, and an L-shaped conveying table 45. The gear screw group 41 is fixedly connected to the rear end of the output shaft 33. The bidirectional lead screw 42 is fixedly connected to both sides of the gear screw group 41. The sliding shaft 43 is slidably connected to the surface of the bidirectional lead screw 42. The X-shaped lifting rod 44 is hingedly connected to one side of the sliding shaft 43. The L-shaped conveying table 45 is hingedly connected to the front side of the X-shaped lifting rod 44. After the lifting table 31 stops, the first lock 48 is locked with the support frame 1 to fix the lifting table 31 and the support frame 1. At this time, the lifting table 31 is not affected by the pulley group 32. And when the output shaft 33 drives the pulley group 32 to operate at this time, due to the limitation of the clamping block 49, the belt on the pulley group 32 is kept fixed. Then the output shaft 33 is rotated counterclockwise. The output shaft 33 drives the gear screw group 41 to operate. The gear screw group 41 drives the bidirectional lead screw 42 to rotate. The bidirectional lead screw 42 drives the sliding shaft 43 to reciprocate. The two sliding shafts 43 move towards each other to vertically contract the X-shaped lifting rod 44, thereby driving the conveying table 45 to rise. The two sliding shafts 43 move in the opposite direction to horizontally contract the X-shaped lifting rod 44, thereby driving the conveying table 45 to descend. The staff places an object on the conveying table 45 and raises the conveying table 45, which can conveniently and quickly send the object onto the lifting table 31, facilitating construction transportation and improving construction efficiency. The fixing structure includes a limit slider 46, a second slide rail 47, a first lock 48, and a clamping block 49. The limit slider 46 is fixedly connected to the front side of the L-shaped conveying table 45. The second slide rail 47 is fixedly connected to the rear side of the support frame 1. The first lock 48 is hingedly connected to the front and rear sides of the bottom end of the lifting table 31. The clamping block 49 is fixedly connected to the side of the limit plate 39. The bidirectional lead screw 42 is hingedly connected to the rear side of the support frame 1. The limit slider 46 is slidably connected to the inner side of the second slide rail 47. The first lock 48 is clamped with the front and rear sides of the support frame 1. The clamping block 49 is sleeved on the surface of the pulley group 32. When the conveying table 45 rises and falls, it drives the limit slider 46 to rise and fall in the second slide rail 47. The second slide rail 47 limits the limit slider 46, thereby keeping the conveying table 45 stable during the lifting and lowering process, improving the stability of object transportation, preventing the object from shaking and falling, and further enhancing construction efficiency.

[0018] Above the L-shaped conveyor table 45, an expansion device 5 is provided. The expansion device 5 includes a folding structure and a protection structure. The folding structure includes a connecting plate 51, a notch 52, and a folding plate 53. The connecting plate 51 is fixedly connected to both sides of the lifting table 31. The notch 52 is opened on the inner side of the connecting plate 51. The folding plate 53 is hingedly connected above the connecting plate 51. When the lifting table 31 rises and falls, it drives the connecting plate 51 to rise and fall. The connecting plate 51 drives the folding plate 53 to rise and fall, and vertically flips the folding plate 53 to be parallel to the bottom of the lifting table 31, which can expand the lifting area, so that more people or more things can be lifted. The protection structure includes a side protection frame 54, a movable protection frame 55, a locking protection frame 56, and a second lock 57. The side protection frame 54 is hingedly connected to one side of the folding plate 53. The movable protection frame 55 is hingedly connected to the front and rear sides of the lifting table 31. The locking protection frame 56 is hingedly connected to the front and rear sides of the lifting table 31. The second lock 57 is fixedly connected to one side of the locking protection frame 56. The second lock 57 is clamped with one end of the movable protection frame 55. The movable protection frame 55 is clamped with the front and rear sides of the folding plate 53. The locking protection frame 56 is clamped with the front and rear sides of the folding plate 53. After the folding plate 53 is vertically flipped, the side protection frame 54 is vertically flipped. At this time, the side protection frame 54 can block the side of the folding plate 53. Then the second lock 57 is opened to separate the movable protection frame 55 and the locking protection frame 56. Then the movable protection frame 55 and the locking protection frame 56 are respectively fitted and clamped with the front and rear sides of the connecting plate 51, so that the front and rear sides of the folding plate 53 are blocked, and the whole folding plate 53 is protected. While increasing the lifting area, the safety is ensured, so that more people and objects can be lifted more safely and effectively.

[0019] Working principle: After the lifting table 31 stops, the first lock 48 is locked with the support frame 1 to fix the lifting table 31 and the support frame 1. At this time, the lifting table 31 is not affected by the pulley block 32. And when the output shaft 33 drives the pulley block 32 to rotate, due to the limitation of the clamping block 49, the belt on the pulley block 32 is kept fixed. Then the output shaft 33 is rotated counterclockwise. The output shaft 33 drives the gear screw group 41 to operate. The gear screw group 41 drives the bidirectional screw 42 to rotate. The bidirectional screw 42 drives the sliding shaft 43 to move reciprocally. The two sliding shafts 43 move towards each other to vertically contract the X-shaped lifting rod 44, thereby driving the conveyor table 45 to rise. The two sliding shafts 43 move in the opposite direction to horizontally contract the X-shaped lifting rod 44, thereby driving the conveyor table 45 to descend. The staff places the object on the conveyor table 45 and makes the conveyor table 45 rise, which can conveniently and quickly send the object to the lifting table 31, facilitating construction transportation and improving construction efficiency. When the conveyor table 45 rises and falls, it drives the limit slider 46 to rise and fall in the second slide rail 47. The second slide rail 47 limits the limit slider 46, so that the conveyor table 45 remains stable during the lifting and lowering process, improving the stability of object transportation, preventing the object from shaking and falling, and further improving the construction efficiency. When the lifting platform 31 is lifted, it drives the connecting plate 51 to lift. The connecting plate 51 drives the folding plate 53 to lift, and vertically flips the folding plate 53 to be parallel to the bottom of the lifting platform 31, which can expand the lifting area, so that more people or more things can be lifted. After vertically flipping the folding plate 53, then vertically flip the side guard frame 54. At this time, the side guard frame 54 can block the side of the folding plate 53. Then open the second lock 57 to separate the movable guard frame 55 and the locking guard frame 56, and then respectively fit and connect the movable guard frame 55 and the locking guard frame 56 to the front and rear sides of the connecting plate 51, so that the front and rear sides of the folding plate 53 are blocked, and the whole folding plate 53 is protected. While increasing the lifting area, the safety is ensured, so that more people and objects can be lifted more safely and effectively.

[0020] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A lifting scaffold for backfilled soil foundation, comprising a support frame (1), characterized in that: It further includes a support device (2), and the support device (2) includes a support structure and an adjustment structure; The support structure includes a fixed foot pad (21), a moving plate (22), and a support rod (23). The fixed foot pad (21) is hinged to the outside of the support frame (1), the moving plate (22) is fixedly connected to one side of the top end of the fixed foot pad (21), and the support rod (23) is fixedly connected above the moving plate (22); The adjustment structure includes a sliding frame (24), a sliding card slot (25), a clamping slider (26), a moving foot pad (27), and a threaded rotating rod (28). The sliding frame (24) is fixedly connected to one end of the moving plate (22), the sliding card slot (25) is opened on both sides of the sliding frame (24), the clamping slider (26) is slidably connected to the inside of the sliding frame (24), the moving foot pad (27) is threadedly connected to the inside of the clamping slider (26), and the threaded rotating rod (28) is hinged to one side of the sliding frame (24).

2. The lifting scaffold for backfilled soil foundation according to claim 1, wherein: The support rod (23) is hinged to the outside of the support frame (1), the clamping slider (26) is slidably connected to the inside of the sliding card slot (25), and the threaded rotating rod (28) is threadedly connected to the inside of the clamping slider (26).

3. The lift scaffold for backfilled soil foundation according to claim 2, characterized in that: An elevating device (3) is arranged inside the fixed foot pad (21). The elevating device (3) includes an elevating structure and a stable buffering structure. The elevating structure includes an elevating platform (31), a pulley group (32), and an output shaft (33). The elevating platform (31) is slidably connected to the inside of the support frame (1), the pulley group (32) is hinged to both sides of the support frame (1), the output shaft (33) is rotatably connected to the bottom of the support frame (1), and the stable buffering structure includes a clamping plate (34), a first sliding rail (35), a buffer column (36), a sleeve (37), a damper (38), and a limiting plate (39). The clamping plate (34) is fixedly connected to both sides of the elevating platform (31), the first sliding rail (35) is fixedly connected to the inside of the support rod (23), the buffer column (36) is fixedly connected to the bottom of the elevating platform (31), the sleeve (37) is fixedly connected to the bottom of the support frame (1), the damper (38) is fixedly connected to the inside of the sleeve (37), and the limiting plate (39) is fixedly connected to both sides of the support frame (1).

4. The lifting scaffold for backfilled soil foundation according to claim 3, wherein: The pulley group (32) is fixedly connected to the bottom of the elevating platform (31), the pulley group (32) is fixedly connected to the surface of the output shaft (33), a motor is arranged at the front end of the output shaft (33) and the motor is fixedly connected to the bottom of the support frame (1), the clamping plate (34) is slidably connected to the inside of the first sliding rail (35), the buffer column (36) is slidably connected to the inside of the sleeve (37), the buffer column (36) is movably connected to the top end of the damper (38), and the damper (38) is fixedly connected to the bottom of the support frame (1).

5. The lifting scaffold for backfill foundation according to claim 4, characterized in that: A conveying device (4) is provided at the rear end of the output shaft (33). The conveying device (4) includes a conveying structure and a fixing structure. The conveying structure includes a gear screw group (41), a bidirectional lead screw (42), a sliding shaft (43), an X-shaped lifting rod (44), and an L-shaped conveying table (45). The gear screw group (41) is fixedly connected to the rear end of the output shaft (33). The bidirectional lead screw (42) is fixedly connected to both sides of the gear screw group (41). The sliding shaft (43) is slidably connected to the surface of the bidirectional lead screw (42). The X-shaped lifting rod (44) is hingedly connected to one side of the sliding shaft (43). The L-shaped conveying table (45) is hingedly connected to the front side of the X-shaped lifting rod (44). The fixing structure includes a limit slider (46), a second slide rail (47), a first lock (48), and a clamping block (49). The limit slider (46) is fixedly connected to the front side of the L-shaped conveying table (45). The second slide rail (47) is fixedly connected to the rear side of the support frame (1). The first lock (48) is hingedly connected to the front and rear sides of the bottom end of the lifting table (31). The clamping block (49) is fixedly connected to the side of the limit plate (39).

6. The lifting scaffold for backfilled soil foundation according to claim 5, wherein: The bidirectional lead screw (42) is hingedly connected to the rear side of the support frame (1). The limit slider (46) is slidably connected to the inner side of the second slide rail (47). The first lock (48) is clamped to the front and rear sides of the support frame (1). The clamping block (49) is sleeved on the surface of the pulley group (32).

7. The lifting scaffold for backfill foundation according to claim 6, characterized in that: An expansion device (5) is provided above the L-shaped conveying table (45). The expansion device (5) includes a folding structure and a protection structure. The folding structure includes a connecting plate (51), a notch (52), and a folding plate (53). The connecting plate (51) is fixedly connected to both sides of the lifting table (31). The notch (52) is opened on the inner side of the connecting plate (51). The folding plate (53) is hingedly connected above the connecting plate (51). The protection structure includes a side protection frame (54), a movable protection frame (55), a locking protection frame (56), and a second lock (57). The side protection frame (54) is hingedly connected to one side of the folding plate (53). The movable protection frame (55) is hingedly connected to the front and rear sides of the lifting table (31). The locking protection frame (56) is hingedly connected to the front and rear sides of the lifting table (31). The second lock (57) is fixedly connected to one side of the locking protection frame (56).

8. A lifting scaffold for backfill foundation according to claim 7, characterized in that: The second lock (57) is clamped to one end of the movable protection frame (55). The movable protection frame (55) is clamped to the front and rear sides of the folding plate (53). The locking protection frame (56) is clamped to the front and rear sides of the folding plate (53).

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