A lifting device and construction method for a building with column support

Abstract

The application discloses a lifting device and construction method of a building with column support, which comprises a lifting platform, a base is arranged on the lifting platform in a sliding mode, a baffle is arranged on the base, a driving assembly for driving the base to move is arranged on the lifting platform, two side walls are fixedly connected to the baffle, and a turnover mechanism for driving the baffle to turn over is arranged on the base. The application can reduce the safety risk of construction personnel.

Description

Technical Field

[0001] This invention relates to the technical field of building lifting, and in particular to a lifting device and construction method for a building supported by columns. Background Technology

[0002] Currently, when older buildings need to be increased in height, demolition and reconstruction would consume a significant amount of manpower and financial resources. Building jacking is a method of raising or increasing the height of an existing building when its height or floor height does not meet usage requirements, and it is typically used in building renovation scenarios.

[0003] The prior art can be referenced in Chinese Patent No. CN115324202B, which discloses a lifting device and construction method for a building supported by columns, including a jack, a lifting screw, a lifting seat, diagonal braces, steel clamp brackets, and four steel columns arranged around the columns; a lower lifting steel beam and an upper lifting steel beam are connected between two steel columns on opposite sides; the lifting screw slides through the upper lifting steel beam, the lifting seat, and the lower lifting steel beam, and is connected to the steel clamp brackets; an upper nut that abuts against the upper side of the upper lifting steel beam and a middle nut that abuts against the upper side of the lifting seat are screwed onto the lifting screw; the jack support is arranged between the lifting seat and the lower lifting steel beam.

[0004] However, when the lifting device in the aforementioned patent lifts the building, the building's walls may detach and fall, potentially hitting the construction workers on the head, thus increasing the safety risks for the workers. Summary of the Invention

[0005] To reduce safety risks for construction workers, this application provides a lifting device for a building supported by columns, employing the following technical solution:

[0006] A lifting device for a building supported by columns includes a lifting platform, a base slidably disposed on the lifting platform, a baffle disposed on the base, a driving component for moving the base disposed on the lifting platform, two side panels fixedly connected to the baffle, and a flipping mechanism for flipping the baffle disposed on the base.

[0007] By adopting the above technical solution, when construction workers are lifting the foundation, the baffle can prevent wall debris from falling and hitting them, thus reducing the safety risks to the workers. When there are bricks on the baffle, the drive assembly drives the baffle to move vertically downwards, and then the flipping mechanism drives the baffle to flip, making it easy for construction workers to clean the bricks off the baffle, thereby reducing the risk of bricks falling from the baffle and hitting them.

[0008] Preferably, the flipping mechanism includes a boss, which is fixedly connected to the lifting platform, the base is capable of abutting against the boss, the baffle is hinged to the base, and the base is provided with a fixing component for fixing the baffle.

[0009] By adopting the above technical solution, when the baffle is driven to move vertically downward to the boss by the driving component, the fixing effect of the fixing component on the baffle is canceled. At this time, the baffle flips downward under the action of gravity, which makes it easier for construction personnel to clean the baffle.

[0010] Preferably, the fixing component includes a fixing block, a horizontal groove is formed on the side of the base near the baffle, the fixing block is slidably disposed on the inner wall of the horizontal groove, the baffle is formed with a fixing groove, and the fixing block can be inserted into the inner wall of the fixing groove; a drive plate is fixedly connected to one side of the fixing block, a first spring is fixedly connected to one side of the drive plate, the end of the first spring away from the drive plate is fixedly connected to the inner wall of the horizontal groove, and a separation component is provided on the base for driving the fixing block to separate from the fixing groove.

[0011] By adopting the above technical solution, when it is necessary to fix the baffle, the fixing block is driven to insert into the inner wall of the fixing groove by the elastic force of the first spring, so as to facilitate the fixing of the baffle; when it is necessary to cancel the fixing effect of the fixing component on the baffle, the setting of the separation component makes it easy to drive the fixing block to separate from the fixing groove, thereby making it easy to cancel the fixing effect of the fixing component on the baffle.

[0012] Preferably, the separating component includes a stop block, a vertical groove is formed on one side wall of the horizontal groove, the stop block is slidably disposed on the inner wall of the vertical groove, the fixing block can abut against the stop block, a second spring is disposed in the vertical groove, one end of the second spring is fixedly connected to the inner wall of the vertical groove, and the other end of the second spring is fixedly connected to the stop block; a protrusion is fixedly connected to the protrusion, a through hole is formed on one side wall of the horizontal groove, the protrusion can be inserted into the through hole, and the protrusion can abut against the stop block.

[0013] By adopting the above technical solution, when it is necessary to drive the fixed block to separate from the fixed groove, the base is first driven to move downward in the vertical direction by the drive assembly. When the protrusion is inserted into the through hole, the protrusion abuts against the stop block. At this time, the base continues to move downward in the vertical direction, and the protrusion drives the stop block to move upward in the vertical direction. When the stop block separates from the fixed block, the fixed block moves away from the fixed groove under the elastic force of the first spring, which facilitates the separation of the fixed block from the fixed groove.

[0014] Preferably, the baffle is provided with a front panel, a rotating shaft is fixedly fitted on the front panel, a clearance groove is provided on the baffle, the rotating shaft is rotatably disposed on the inner wall of the clearance groove, a torsion spring is fitted on the rotating shaft, one end of the torsion spring is fixedly connected to the inner wall of the clearance groove, and the other end of the torsion spring is fixedly connected to the front panel; the baffle is provided with a limiting component for limiting the front panel.

[0015] By adopting the above technical solution, when the flipping mechanism drives the baffle to flip, the limiting component releases the limiting effect on the front panel. At this time, the rotating shaft rotates under the elastic force of the torsion spring, and the rotating shaft drives the front panel to rotate, which further facilitates the construction personnel to clean the baffle.

[0016] Preferably, the limiting component includes a limiting block, a sliding groove is formed on one side wall of the clearance groove, the limiting block is slidably disposed on the inner wall of the sliding groove, a limiting groove is formed on the front panel, and the limiting block can be inserted into the inner wall of the limiting groove; a third spring is provided in the sliding groove, one end of the third spring is fixedly connected to the limiting block, the other end of the third spring is fixedly connected to the inner wall of the sliding groove, and a driving member is provided on the baffle for driving the limiting block to separate from the limiting groove.

[0017] By adopting the above technical solution, when it is necessary to limit the front panel, the limiting block is driven to insert into the inner wall of the limiting groove by the elastic force of the third spring, so as to facilitate the limiting effect of the front panel. When it is necessary to release the limiting effect of the limiting component on the front panel, the limiting block is driven to separate from the limiting groove by the driving component, so as to facilitate the release of the limiting effect of the limiting component on the front panel.

[0018] Preferably, the driving component includes a first pull rope, a through groove is provided on one side wall of the sliding groove, the through groove is connected to the fixing groove, the first pull rope is disposed in the through groove, one end of the first pull rope is fixedly connected to the limiting block, and the other end of the first pull rope is fixedly connected to the fixing block.

[0019] By adopting the above technical solution, when the fixed block is separated from the fixed groove, the fixed block drives the first pull rope to move, and the first pull rope drives the limiting block to move away from the limiting groove, thereby facilitating the separation of the fixed block from the fixed groove.

[0020] Preferably, a rear panel is slidably disposed on the baffle, and a driving block is fixedly connected to both sides of the rear panel. A driving groove is opened on the opposite inner side of the two side panels. The two driving blocks are arranged in a one-to-one correspondence with the two driving grooves. The driving blocks are slidably disposed on the inner wall of the driving grooves. A driving mechanism for driving the driving blocks to move is provided on the side panels.

[0021] By adopting the above technical solution, when the current enclosure is flipped to the open state, the driving mechanism drives the driving block to move along the length direction of the baffle. After the driving block drives the enclosure to move along the length direction of the baffle, it is easy to clean the bricks on the baffle to the outside of the baffle, thereby reducing the labor intensity of construction workers.

[0022] Preferably, the driving mechanism includes a fourth spring, one end of which is fixedly connected to the driving block, and the other end of which is fixedly connected to the inner wall of the driving groove; a mounting groove is provided on one side wall of the driving groove, a vertical block is slidably disposed in the mounting groove, a insertion groove is provided on one side of the driving block, the vertical block can be inserted into the inner wall of the insertion groove, a fifth spring is disposed in the mounting groove, one end of which is fixedly connected to the vertical block, and the other end of which is fixedly connected to the inner wall of the mounting groove; a second pull rope is fixedly connected to the vertical block, and the end of the second pull rope away from the vertical block is fixedly connected to the front panel.

[0023] By adopting the above technical solution, when it is necessary to drive the rear panel to move along the length direction of the baffle, the front panel flips over, the front panel drives the second pull rope to move, the second pull rope drives the vertical block to move upward in the vertical direction, and when the vertical block separates from the insertion slot, the driving block moves along the length direction of the baffle under the elastic force of the fourth spring, thereby facilitating the driving of the rear panel to move along the length direction of the baffle.

[0024] This application provides a method for lifting a building supported by columns, which adopts the following technical solution:

[0025] S1: When construction workers are operating near the lifting platform, loose bricks fall onto the baffle, thus facilitating safety protection for the construction workers;

[0026] S2: When the number of bricks falling from the baffle reaches the upper limit, the construction workers drive the baffle to move vertically downwards to the ground using the drive assembly;

[0027] S3: The baffle is driven to flip by the flipping mechanism, and then the limiting component is removed from the front panel. At this time, the front panel flips under the elastic force of the torsion spring.

[0028] S4: The rear panel is moved by the drive mechanism, which makes it easier to clean the bricks on the baffle.

[0029] In summary, this application has the following beneficial effects:

[0030] 1. When construction workers are lifting the foundation, the baffle can prevent wall debris from falling and hitting them, thus reducing the safety risk to the workers. When there are bricks on the baffle, the drive assembly moves the baffle vertically downwards, and the flipping mechanism flips the baffle, making it easier for construction workers to clean the bricks off the baffle, further reducing the risk of bricks falling and hitting them.

[0031] 2. When it is necessary to drive the fixed block to separate from the fixed groove, the base is first driven to move downward in the vertical direction by the drive assembly. When the protrusion is inserted into the through hole, the protrusion abuts against the stop block. At this time, the base continues to move downward in the vertical direction, and the protrusion drives the stop block to move upward in the vertical direction. When the stop block separates from the fixed block, the fixed block moves away from the fixed groove under the elastic force of the first spring, which facilitates the separation of the fixed block from the fixed groove.

[0032] 3. When it is necessary to drive the rear panel to move along the length of the baffle, the front panel flips over, the front panel drives the second pull rope to move, the second pull rope drives the vertical block to move upward in the vertical direction, and when the vertical block separates from the insertion slot, the drive block moves along the length of the baffle under the elastic force of the fourth spring, thus making it easier to drive the rear panel to move along the length of the baffle. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0034] Figure 2 This is a cross-sectional view showing the flipping mechanism in this embodiment;

[0035] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0036] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0037] Figure 5 This is a cross-sectional view of the drive mechanism shown in this embodiment.

[0038] Explanation of reference numerals in the attached drawings: 1. Lifting platform; 11. Base; 12. Baffle; 2. Drive assembly; 211. Side panel; 221. Lead screw; 222. Guide rod; 3. Tilting mechanism; 311. Boss; 32. Fixing assembly; 321. Fixing block; 322. Horizontal groove; 323. Fixing groove; 324. Drive plate; 325. First spring; 33. Separation component; 331. Stop block; 332. Vertical groove; 333. Second spring; 334. Protrusion; 335. Through hole; 341. Front panel 342. Plate; 343. Rotating shaft; 344. Leaving groove; 345. Torsion spring; 356. Limiting assembly; 357. Limiting block; 358. Sliding groove; 359. Limiting groove; 300. Third spring; 310. Driving component; 361. First pull rope; 362. Through groove; 411. Rear panel; 412. Driving block; 413. Driving groove; 42. Driving mechanism; 421. Fourth spring; 422. Mounting groove; 423. Vertical block; 424. Insertion groove; 425. Fifth spring; 426. Second pull rope. Detailed Implementation

[0039] This invention discloses a lifting device for a building supported by columns, such as... Figure 1 As shown, it includes a lifting platform 1, which is square and arranged horizontally. A base 11 is slidably arranged on the lifting platform 1 in the vertical direction. The base 11 is square and a baffle 12 is provided on the base 11. The lifting platform 1 is provided with a driving assembly 2 for driving the base 11 to move in the vertical direction. Two side panels 211 are fixedly connected to the baffle 12. The side panels 211 are square. The base 11 is provided with a flipping mechanism 3 for driving the baffle 12 to flip.

[0040] When construction workers are lifting the foundation 1, the baffle 12 can prevent wall debris from falling and hitting them, thus reducing the safety risk to the workers. When there are bricks on the baffle 12, the drive assembly 2 drives the baffle 12 to move vertically downwards, and then the flipping mechanism 3 drives the baffle 12 to flip, making it easier for construction workers to clean the bricks off the baffle 12, thereby reducing the risk of bricks falling from the baffle 12 and hitting them.

[0041] like Figure 1 and Figure 2As shown, the flipping mechanism 3 includes a boss 311, which is square in shape and fixedly connected to the upper surface of the lifting platform 1. The bottom of the base 11 can abut against the top of the boss 311. The side of the baffle 12 near the base 11 is hinged to the base 11. The base 11 is provided with a fixing component 32 for fixing the baffle 12. When the baffle 12 is driven to move vertically downward to the boss 311 by the driving component 2, the fixing effect of the fixing component 32 on the baffle 12 is released. At this time, the baffle 12 flips downward under the action of gravity, which makes it easier for construction personnel to clean the baffle 12.

[0042] like Figure 2 and Figure 3 As shown, the fixing component 32 includes a fixing block 321, which is square. A horizontal groove 322 is provided on the side of the base 11 near the baffle 12. The horizontal groove 322 has a square cross-section and extends along the length of the base 11. The fixing block 321 is slidably disposed on the inner wall of the horizontal groove 322 along the length of the base 11. A fixing groove 323 is provided on the side of the baffle 12 near the base 11. The fixing groove 323 has a square cross-section and extends along the length of the baffle 12. The fixing block 321 can be inserted into the inner wall of the fixing groove 323. A driving plate 324 is fixedly connected to one side of the fixing block 321. The driving plate 324 is square. A first spring 325 is fixedly connected to one side of the driving plate 324. The first spring 325 is disposed along the length of the base 11. The end of the first spring 325 away from the driving plate 324 is fixedly connected to the inner wall of the horizontal groove 322. A separation component 33 is provided on the base 11 for driving the fixing block 321 to separate from the fixing groove 323.

[0043] When it is necessary to fix the baffle 12, the spring force of the first spring 325 drives the fixing block 321 to be inserted into the inner wall of the fixing groove 323, thereby facilitating the fixing of the baffle 12; when it is necessary to cancel the fixing effect of the fixing component 32 on the baffle 12, the setting of the separating component 33 facilitates the separation of the fixing block 321 from the fixing groove 323, thereby facilitating the cancellation of the fixing effect of the fixing component 32 on the baffle 12.

[0044] like Figure 2 and Figure 3As shown, the separating component 33 includes a stop block 331, which is square in shape. A vertical groove 332 is formed on one side wall of the horizontal groove 322. The vertical groove 332 has a square cross-section and extends vertically. The stop block 331 is slidably disposed on the inner wall of the vertical groove 332. The side of the fixing block 321 away from the baffle 12 can abut against the stop block 331. A second spring 333 is disposed in the vertical groove 332. The second spring 333 is disposed vertically. One end of the second spring 333 is fixedly connected to the inner wall of the vertical groove 332, and the other end of the second spring 333 is fixedly connected to the top of the stop block 331; a protrusion 334 is fixedly connected to the boss 311. The protrusion 334 is square. A through hole 335 is opened on one side wall of the horizontal groove 322. The cross-section of the through hole 335 is square and extends in the vertical direction. The protrusion 334 can be inserted into the inner wall of the through hole 335 and can abut against the bottom of the stop block 331.

[0045] When it is necessary to drive the fixing block 321 to separate from the fixing groove 323, the base 11 is first driven to move downward in the vertical direction by the driving component 2. When the protrusion 334 is inserted into the through hole 335, the protrusion 334 abuts against the stop block 331. At this time, the base 11 continues to move downward in the vertical direction, and the protrusion 334 drives the stop block 331 to move upward in the vertical direction. When the stop block 331 separates from the fixing block 321, the fixing block 321 moves away from the fixing groove 323 under the elastic force of the first spring 325, which makes it easier to drive the fixing block 321 to separate from the fixing groove 323.

[0046] like Figure 1 As shown, the drive assembly 2 includes a lead screw 221, which is rotatably mounted on the boss 311. The lead screw 221 is vertically oriented and passes through the base 11, with a threaded connection between the lead screw 221 and the base 11. A guide rod 222 is fixedly connected to the boss 311, also vertically oriented and passing through the base 11, with a sliding connection between the guide rod 222 and the base 11. A motor is installed inside the boss 311, and the output shaft of the motor is fixedly connected to the bottom end of the lead screw 221. When it is necessary to drive the base 11 to move vertically, the motor is started to drive the lead screw 221 to rotate. Simultaneously, under the guidance of the guide rod 222, the base 11 can be easily moved vertically.

[0047] like Figure 2 and Figure 4As shown, a front panel 341 is provided on the baffle 12. The front panel 341 has a square cross-section. A rotating shaft 342 is fixedly fitted on the front panel 341. The rotating shaft 342 has a circular cross-section and is set along the width direction of the baffle 12. A clearance groove 343 is provided on the baffle 12. The clearance groove 343 has a square cross-section and extends along the height direction of the baffle 12. Both ends of the rotating shaft 342 are rotatably set on the inner wall of the clearance groove 343 through bearings. A torsion spring 344 is fitted on the rotating shaft 342. The torsion spring 344 is set along the axial direction of the rotating shaft 342. One end of the torsion spring 344 is fixedly connected to the inner wall of the clearance groove 343, and the other end of the torsion spring 344 is fixedly connected to one side wall of the front panel 341. A limiting component 35 for limiting the front panel 341 is provided on the baffle 12. When the flipping mechanism 3 drives the baffle 12 to flip, the limiting component 35 releases the limiting effect on the front panel 341. At this time, the rotating shaft 342 rotates under the elastic force of the torsion spring 344, and the rotating shaft 342 drives the front panel 341 to rotate, which further facilitates the construction personnel to clean the baffle 12.

[0048] like Figure 2 and Figure 4 As shown, the limiting component 35 includes a limiting block 351, which is square in shape. A sliding groove 352 is provided on one side wall of the clearance groove 343. The sliding groove 352 has a square cross-section and extends along the length direction of the baffle 12. The limiting block 351 is slidably disposed on the inner wall of the sliding groove 352 along the length direction of the baffle 12. A limiting groove 353 is provided on the front panel 341. The limiting groove 353 has a square cross-section and extends along the width direction of the front panel 341. The limiting block 351 can be inserted into the inner wall of the limiting groove 353. A third spring 354 is provided in the sliding groove 352. The third spring 354 is arranged along the length direction of the baffle 12. One end of the third spring 354 is fixedly connected to the side of the limiting block 351 away from the limiting groove 353, and the other end of the third spring 354 is fixedly connected to the inner wall of the sliding groove 352. A driving member 36 is provided on the baffle 12 for driving the limiting block 351 to separate from the limiting groove 353.

[0049] When the front bulkhead 341 needs to be limited, the limiting block 351 is driven to insert into the inner wall of the limiting groove 353 by the elastic force of the third spring 354, so that the front bulkhead 341 can be limited. When the limiting component 35 needs to be released from the limiting effect on the front bulkhead 341, the limiting block 351 is driven to separate from the limiting groove 353 by the driving component 36, so that the limiting component 35 can be released from the limiting effect on the front bulkhead 341.

[0050] like Figure 2 , Figure 3 and Figure 4As shown, the driving component 36 includes a first pull rope 361 with a circular cross-section. A through groove 362 is formed on one side wall of the sliding groove 352. The through groove 362 has a circular cross-section and extends along the length of the baffle 12. The through groove 362 communicates with the fixing groove 323. The first pull rope 361 is slidably disposed within the through groove 362 along the length of the baffle 12. One end of the first pull rope 361 is fixedly connected to the side of the limiting block 351 away from the limiting groove 353, and the other end of the first pull rope 361 is fixedly connected to the side of the fixing block 321 near the baffle 12. When the fixing block 321 separates from the fixing groove 323, the fixing block 321 drives the first pull rope 361 to move, and the first pull rope 361 drives the limiting block 351 to move away from the limiting groove 353, thereby facilitating the separation of the fixing block 321 from the fixing groove 323.

[0051] like Figure 5 As shown, a rear panel 411 is slidably disposed on the baffle 12. The rear panel 411 is square. A drive block 412 is fixedly connected to both sides of the rear panel 411. The drive block 412 is square. A drive groove 413 is opened on the opposite inner side of the two side panels 211. The cross-section of the drive groove 413 is square and extends along the length direction of the baffle 12. The two drive blocks 412 are arranged in a one-to-one correspondence with the two drive grooves 413. The drive blocks 412 are slidably disposed on the inner wall of the drive groove 413 along the length direction of the baffle 12. A drive mechanism 42 for driving the drive blocks 412 to move along the length direction of the baffle 12 is provided on the side panel 211.

[0052] When the current enclosure 341 is flipped to the open state, the drive mechanism 42 drives the drive block 412 to move along the length direction of the baffle 12. The drive block 412 drives the rear enclosure 411 to move along the length direction of the baffle 12, which makes it easier to clean the bricks on the baffle 12 to the outside of the baffle 12, thereby reducing the labor intensity of construction workers.

[0053] like Figure 5As shown, the drive mechanism 42 includes a fourth spring 421, which is arranged along the length of the baffle 12. One end of the fourth spring 421 is fixedly connected to one side of the drive block 412, and the other end is fixedly connected to the inner wall of the drive groove 413. A mounting groove 422 is provided on one side wall of the drive groove 413, which extends vertically. A vertical block 423 is slidably arranged in the mounting groove 422, and the vertical block 423 is square. A insertion groove 424 is provided on one side of the drive block 412. The cross-section of the insertion slot 424 is square and extends vertically. The vertical block 423 can be inserted into the inner wall of the insertion slot 424. A fifth spring 425 is provided in the mounting slot 422. The fifth spring 425 is arranged vertically. One end of the fifth spring 425 is fixedly connected to the top of the vertical block 423, and the other end of the fifth spring 425 is fixedly connected to the inner wall of the mounting slot 422. A second pull rope 426 is fixedly connected to the vertical block 423. The end of the second pull rope 426 away from the vertical block 423 is fixedly connected to the front panel 341.

[0054] When it is necessary to drive the rear panel 411 to move along the length of the baffle 12, the front panel 341 flips over. The front panel 341 drives the second pull rope 426 to move, and the second pull rope 426 drives the vertical block 423 to move upward in the vertical direction. When the vertical block 423 separates from the insertion slot 424, the driving block 412 moves along the length of the baffle 12 under the elastic force of the fourth spring 421, which makes it easier to drive the rear panel 411 to move along the length of the baffle 12.

[0055] This application also discloses a method for lifting a building supported by columns, comprising the following steps:

[0056] S1: When construction workers are operating near the lifting platform 1, loose bricks fall onto the baffle 12, which facilitates safety protection for the construction workers.

[0057] S2: When the number of bricks falling from the baffle 12 reaches the upper limit, the construction workers drive the baffle 12 to move vertically downward to the ground through the drive component 2;

[0058] S3: The baffle 12 is driven to flip by the flipping mechanism 3, and then the limiting component 35 is used to cancel the limiting effect on the front panel 341. At this time, the front panel 341 flips under the elastic force of the torsion spring 344.

[0059] S4: The rear panel 411 is moved by the drive mechanism 42, which makes it easier to clean the bricks on the baffle 12.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lifting device for a building supported by columns, comprising a lifting platform (1), characterized in that: A base (11) is slidably disposed on the lifting platform (1), a baffle (12) is disposed on the base (11), a driving component (2) for driving the base (11) to move is disposed on the lifting platform (1), two side plates (211) are fixedly connected to the baffle (12), and a flipping mechanism (3) for driving the baffle (12) to flip is disposed on the base (11). The flipping mechanism (3) includes a boss (311), which is fixedly connected to the lifting platform (1). The base (11) can abut against the boss (311). The baffle (12) is hinged to the base (11). The base (11) is provided with a fixing component (32) for fixing the baffle (12). The fixing component (32) includes a fixing block (321). A horizontal groove (322) is provided on the side of the base (11) near the baffle (12). The fixing block (321) is slidably disposed on the inner wall of the horizontal groove (322). The baffle (12) is provided with a fixing groove (323). The fixing block (321) can be inserted into the inner wall of the fixing groove (323). A drive plate (324) is fixedly connected to one side of the fixing block (321). A first spring (325) is fixedly connected to one side of the drive plate (324). The end of the first spring (325) away from the drive plate (324) is fixedly connected to the inner wall of the horizontal groove (322). A separation component (33) is provided on the base (11) for driving the fixing block (321) to separate from the fixing groove (323). The separating component (33) includes a stop block (331), a vertical groove (332) is provided on one side wall of the horizontal groove (322), the stop block (331) is slidably disposed on the inner wall of the vertical groove (332), the fixing block (321) can abut against the stop block (331), a second spring (333) is provided in the vertical groove (332), one end of the second spring (333) is fixedly connected to the inner wall of the vertical groove (332), and the other end of the second spring (333) is fixedly connected to the stop block (331); a protrusion (334) is fixedly connected on the boss (311), a through hole (335) is provided on one side wall of the horizontal groove (322), the protrusion (334) can be inserted into the through hole (335), and the protrusion (334) can abut against the stop block (331); A front panel (341) is provided on the baffle (12), a rotating shaft (342) is fixedly fitted on the front panel (341), a clearance groove (343) is provided on the baffle (12), the rotating shaft (342) is rotatably disposed on the inner wall of the clearance groove (343), a torsion spring (344) is fitted on the rotating shaft (342), one end of the torsion spring (344) is fixedly connected to the inner wall of the clearance groove (343), and the other end of the torsion spring (344) is fixedly connected to the front panel (341); a limiting component (35) for limiting the front panel (341) is provided on the baffle (12); The limiting component (35) includes a limiting block (351), a sliding groove (352) is provided on one side wall of the clearance groove (343), the limiting block (351) is slidably disposed on the inner wall of the sliding groove (352), a limiting groove (353) is provided on the front panel (341), and the limiting block (351) can be inserted into the inner wall of the limiting groove (353); a third spring (354) is provided in the sliding groove (352), one end of the third spring (354) is fixedly connected to the limiting block (351), and the other end of the third spring (354) is fixedly connected to the inner wall of the sliding groove (352); a driving member (36) for driving the limiting block (351) to separate from the limiting groove (353) is provided on the baffle (12); The driving component (36) includes a first pull rope (361). A through groove (362) is provided on one side wall of the sliding groove (352). The through groove (362) is connected to the fixing groove (323). The first pull rope (361) is disposed in the through groove (362). One end of the first pull rope (361) is fixedly connected to the limiting block (351), and the other end of the first pull rope (361) is fixedly connected to the fixing block (321).

2. The lifting device for a building supported by columns according to claim 1, characterized in that: A rear panel (411) is slidably disposed on the baffle (12). A drive block (412) is fixedly connected to both sides of the rear panel (411). A drive groove (413) is opened on the opposite inner side of the two side panels (211). The two drive blocks (412) are arranged in a one-to-one correspondence with the two drive grooves (413). The drive block (412) is slidably disposed on the inner wall of the drive groove (413). A drive mechanism (42) for driving the drive block (412) to move is provided on the side panel (211).

3. A lifting device for a building supported by columns according to claim 2, characterized in that: The driving mechanism (42) includes a fourth spring (421), one end of which is fixedly connected to the driving block (412), and the other end of which is fixedly connected to the inner wall of the driving groove (413). A mounting groove (422) is provided on one side wall of the driving groove (413), and a vertical block (423) is slidably disposed within the mounting groove (422). A insertion groove (424) is provided on one side of the driving block (412), and the vertical block (423) can... A fifth spring (425) is provided in the mounting groove (422), which is inserted into the inner wall of the insertion groove (424). One end of the fifth spring (425) is fixedly connected to the vertical block (423), and the other end of the fifth spring (425) is fixedly connected to the inner wall of the mounting groove (422). A second pull rope (426) is fixedly connected to the vertical block (423), and the end of the second pull rope (426) away from the vertical block (423) is fixedly connected to the front panel (341).

4. A method for lifting a building supported by columns, based on the lifting device for a building supported by columns as described in claim 3, characterized in that: Includes the following steps: S1: When construction workers operate near the lifting platform (1), loose bricks fall onto the baffle (12), thus facilitating safety protection for construction workers; S2: When the number of bricks falling on the baffle (12) reaches the upper limit, the construction workers drive the baffle (12) to move vertically downward to the ground through the drive assembly (2); S3: The baffle (12) is driven to flip by the flipping mechanism (3), and the limiting component (35) is canceled to limit the front panel (341). At this time, the front panel (341) flips under the elastic force of the torsion spring (344). S4: The rear panel (411) is moved by the drive mechanism (42), which makes it easier to clean the bricks on the baffle (12).

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