Shaft lifting platform in conical hollow pier and lifting method of shaft lifting platform

Abstract

The invention provides a shaft lifting platform in a conical hollow pier and a lifting method thereof.The shaft lifting platform comprises a conical well, a shrinkage platform is arranged on the conical well, the shrinkage platform comprises a middle platform and two side platforms, a plurality of rotating climbing frames are arranged on the side platforms, each rotating climbing frame comprises a transverse frame and a vertical frame, and a plurality of steel channels are arranged on the conical well; the vertical frame abuts against the channel steel to slide. The telescopic platform can be lifted, so that frequent hoisting operation of a crane is avoided, the safety risk of high-altitude construction is further avoided, and the use cost of equipment is also increased; and meanwhile, the whole construction period is prolonged through repeated hoisting and butt joint operation. The retractable platform can adapt to conical wells with different section widths, so that the complicated steps of erecting a scaffold, time and labor wasting and repeated disassembly and reassembly of the working platform are avoided; and according to the width requirements of different heights, the number of the working plates on the two sides of the working platform needs to be increased or decreased.

Description

Technical Field

[0001] This invention relates to the field of hollow pier construction, and in particular to a lifting platform for the inner shaft of a conical hollow pier and its lifting method. Background Technology

[0002] The existing hollow piers have an inclined inner wall structure. Construction needs to be carried out inside the hollow piers with inclined inner walls. A construction platform needs to be set up for workers to carry out the work. There are two existing construction methods.

[0003] One construction method involves erecting scaffolding inside the hollow pier, and then setting up working platforms on the scaffolding. Different platform widths are required for platforms of varying heights to accommodate the sloping inner walls of the hollow pier. This method is cumbersome, time-consuming, and labor-intensive. Adjustments to the construction height necessitate repeated disassembly and reassembly of the working platforms. Furthermore, the addition or removal of working boards on both sides of the platform to accommodate different height width requirements further complicates the construction process.

[0004] Another construction method involves installing channel steel on the inner wall of the hollow pier. For construction at different heights within the hollow pier, a crane is used to access working platforms of varying widths, which are then connected to the channel steel. This method requires frequent crane lifting operations, which not only increases the safety risks of high-altitude construction but also raises equipment operating costs. Furthermore, the repeated lifting and docking operations extend the overall construction period. Summary of the Invention

[0005] This invention provides a hoisting platform for a conical hollow pier and its hoisting method, which solves the problem that erecting scaffolding inside the hollow pier and then building platforms of different widths is cumbersome, time-consuming, and labor-intensive, requiring repeated disassembly and reassembly of the work platform, thus increasing the construction process.

[0006] Another technical problem solved by this invention is that the method of fixing with channel steel and hoisting the platform with a crane is cumbersome, increases the safety risks of high-altitude construction, increases equipment usage costs, and extends the overall construction period.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a conical hollow pier inner shaft lifting platform and its lifting method, including a conical shaft, a retractable platform on the conical shaft, the retractable platform including a middle platform and two side platforms, a plurality of rotating climbing frames on the side platforms, the rotating climbing frames including horizontal frames and vertical frames, a plurality of channel steels on the conical shaft, and the vertical frames sliding against the channel steels.

[0008] In the preferred embodiment, the inner wall of the conical well is provided with multiple channel steels, and the channel steels are provided with multiple positioning holes. A crane is provided on one side of the conical well, and the crane is connected to the retraction platform through a steel cable.

[0009] In the preferred embodiment, the side platform includes a flat plate with multiple mounting slots and multiple connecting beams, and the rotating climbing frame rests against the mounting slots.

[0010] In the preferred embodiment, the intermediate platform includes a top plate, and multiple sliding beams are provided on both sides of the bottom of the top plate. One end of each sliding beam is provided with a limiting plate and a lifting lug.

[0011] In the preferred embodiment, the horizontal frame is provided with a rotatably connected vertical frame, both ends of the vertical frame are provided with climbing formwork hangers, and the vertical frame is provided with a sliding second climbing formwork hanger.

[0012] In the preferred embodiment, the crossbeam includes two U-shaped steels with a transverse groove between them. The sliding beam of the middle platform slides against the transverse groove. The top of the crossbeam is equipped with a top roller, and the bottom of the crossbeam has multiple bottom rollers.

[0013] In the preferred embodiment, a rotating seat is provided at one end of the vertical frame, the rotating seat is rotatably connected to the horizontal frame, a vertical groove is provided on the vertical frame, and an adjusting cylinder is provided between the vertical frame and the horizontal frame. The adjusting cylinder includes a sliding seat, which slides against the vertical groove.

[0014] In the preferred embodiment, a connecting plate is provided on the vertical frame, and a lifting cylinder is provided on the connecting plate. One end of the lifting cylinder is connected to the second climbing formwork bracket, one end of the adjusting cylinder is rotatably connected to the sliding seat, and the other end of the adjusting cylinder is rotatably connected to the horizontal frame.

[0015] In the preferred embodiment, multiple measuring rollers are provided on one side of the vertical frame, and the measuring rollers roll against the channel steel. A positioning bolt is provided at one end of the vertical frame, and the climbing formwork bracket has the same structure as the second climbing formwork bracket.

[0016] A lifting method for a hoisting platform inside a conical hollow pier shaft, characterized by: S1, hoisting the retractable platform: the retractable platform is placed on the top of the conical shaft by a crane, and the side platforms on both sides are manually pulled to one side of the channel steel. The climbing formwork bracket at the top is connected to the channel steel, and the crane is removed. S2. Rotate the climbing frame adjustment: Drive the adjustment cylinder so that multiple measuring rollers abut against the channel steel, the vertical frame is parallel to the channel steel, and the climbing formwork bracket and the second climbing formwork bracket are both connected to the channel steel. S3. Retracting platform lifting: Retract the second climbing formwork bracket and drive multiple lifting cylinders to make the second climbing formwork bracket slide relative to the vertical frame. After sliding a certain distance, the second climbing formwork bracket connects with the channel steel. S4. Retract the two climbing formwork brackets and drive multiple lifting cylinders to raise and lower the shrinking platform. At the same time, the two side platforms open and close relative to the middle platform, and the shrinking platform shrinks. S5. Rotate the climbing frame to install the positioning bolts so that the positioning bolts are connected to the tapered well and the channel steel.

[0017] The beneficial effects of this invention are as follows: when construction is required inside the conical hollow pier, the entire device is lifted into the conical well by a crane, and the side platforms on both sides are pulled to one side of the channel steel by manual labor. The climbing formwork bracket at the top is connected to the channel steel, and the crane is removed.

[0018] By driving the adjusting cylinder, the angle of the vertical frame of the rotating climbing frame can be adjusted so that the vertical frame abuts against the channel steel, allowing the rotating climbing frame to adapt to conical wells with different inclination angles. By rotating the two climbing formwork brackets and the second climbing formwork bracket on the climbing frame, the climbing formwork brackets are alternately connected to the channel steel, and the second climbing formwork bracket slides up and down relative to the rotating climbing frame, so that the overall platform structure slides up and down relative to the channel steel, thereby adjusting the height position of the overall platform structure.

[0019] When the overall platform structure slides up and down relative to the channel steel, and the height of the overall platform structure changes, the two side platforms slide relative to the middle platform, causing the width of the contraction platform to change. This allows the contraction platform to adapt to different cross-sectional widths of the conical well. A limiting plate on the middle platform prevents one end of the middle platform from sliding off the side platforms, and prevents the side platforms from detaching from the middle platform. The top and bottom rollers on the rotating climbing frame limit the sliding beam of the middle platform, reducing frictional resistance. The side rollers abut against the channel steel, facilitating the raising and lowering of the rotating climbing frame relative to the channel steel.

[0020] The retractable platform can be raised and lowered, and the rotating climbing frame can adapt to the conical well inner wall with different inclinations, thus avoiding the need for frequent crane hoisting operations, thereby avoiding the safety risks of high-altitude construction and increasing equipment usage costs; at the same time, repeated hoisting and docking operations prolong the overall construction period.

[0021] When the retractable platform is raised or lowered, the middle platform slides relative to the side platforms, thus accommodating conical wells with different cross-sectional widths. This avoids the cumbersome, time-consuming, and labor-intensive process of erecting scaffolding, as well as the need to repeatedly disassemble and reassemble the work platform. Furthermore, it avoids the need to add or remove work boards on both sides of the work platform according to the width requirements of different heights. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is an axonometric view of the overall structure of the present invention; Figure 2 This is a front view of the shrinkage platform of the present invention; Figure 3 This is an axonometric view of the shrinkage platform of the present invention; Figure 4 This is a front view of the rotating climbing frame of the present invention; Figure 5 This is the present invention. Figure 4 A magnified view of A in the middle; Figure 6 This is an axonometric view of the rotating climbing frame of the present invention; Figure 7 This is a top view of the rotating climbing frame of the present invention; Figure 8 This is a side view of the rotating climbing frame of the present invention; Figure 9 This is an axonometric view of the side platform of the present invention; Figure 10 This is an isometric view of the intermediate platform of the present invention; In the diagram: 1. Conical well; 2. Shrinking platform; 3. Side platform; 301. Flat plate; 302. Mounting groove; 303. Connecting beam; 4. Intermediate platform; 401. Top plate; 402. Sliding beam; 403. Limiting plate; 404. Lifting lug; 5. Rotating climbing frame; 501. Horizontal frame; 501. Horizontal groove; 502. Vertical frame; 502. Vertical groove; 5021. Connecting plate; 5022. Supporting beam; 503. Top roller; 504. Bottom roller; 505. Side roller; 506. Rotating seat; 507. Climbing formwork hanger; 6. Second climbing formwork hanger; 7. Lifting cylinder; 8. Adjusting cylinder; 9. Sliding seat; 901. Positioning bolt; 10. Channel steel; 11. Steel cable; 12. Detailed Implementation

[0023] Example 1: like Figure 1-10 A hoisting platform for a conical hollow pier and its hoisting method are disclosed. The platform includes a conical pier 1, a retractable platform 2 on the conical pier 1, a central platform 4 and two side platforms 3, and multiple rotating climbing frames 5 on the side platforms 3. Each rotating climbing frame 5 includes a horizontal frame 501 and a vertical frame 502. Multiple channel steels 11 are provided on the conical pier 1, and the vertical frames 502 slide against the channel steels 11. With this structure, when construction is required inside the conical hollow pier, the entire device is hoisted into the conical pier 1 using a crane. The side platforms 3 are then manually pulled to one side of the channel steels 11, and the top climbing formwork bracket 6 connects to the channel steels 11. The crane is then removed.

[0024] By driving the adjusting cylinder 9, the angle of the vertical frame 502 of the rotating climbing frame 5 can be adjusted so that the vertical frame 502 abuts against the channel steel 11, allowing the rotating climbing frame 5 to adapt to conical wells 1 with different inclination angles. By rotating the two climbing formwork brackets 6 and the second climbing formwork bracket 7 on the rotating climbing frame 5, the climbing formwork brackets 6 and 7 are alternately connected to the channel steel 11, and the second climbing formwork bracket 7 slides up and down relative to the rotating climbing frame 5, so that the overall platform structure slides up and down relative to the channel steel 11, thereby adjusting the height position of the overall platform structure.

[0025] When the overall platform structure slides up and down relative to the channel steel 11, and the height of the overall platform structure changes, the two side platforms 3 slide relative to the middle platform 4, causing the width of the contraction platform 2 to change, so that the contraction platform 2 can adapt to different cross-sectional widths of the conical well 1. The limiting plate 403 on the middle platform 4 prevents one end of the middle platform 4 from sliding off the side platform 3, and prevents the side platform 3 from detaching from the middle platform 4. The top roller 504 and bottom roller 505 on the rotating climbing frame 5 limit the sliding beam 402 of the middle platform 4, reducing frictional resistance. The side roller 506 abuts against the channel steel 11, facilitating the lifting and lowering of the rotating climbing frame 5 relative to the channel steel 11.

[0026] The retractable platform 2 can be raised and lowered, and the rotating climbing frame 5 can adapt to the inner wall of the conical well 1 with different inclinations, thereby avoiding the need for frequent crane hoisting operations, thus avoiding the safety risks of high-altitude construction and increasing the cost of equipment use; at the same time, repeated hoisting and docking operations prolong the overall construction period.

[0027] When the retractable platform 2 is raised or lowered, the middle platform 4 slides relative to the side platform 3, thereby adapting to the conical well 1 with different cross-sectional widths. This avoids the cumbersome, time-consuming, and labor-intensive process of erecting scaffolding, as well as the need to repeatedly disassemble and reassemble the work platform and add or remove work boards on both sides of the work platform according to the width requirements of different heights.

[0028] In the preferred embodiment, the inner wall of the conical well 1 is provided with multiple channel steels 11, each with multiple positioning holes. A crane is located on one side of the conical well 1, and the crane is connected to the retraction platform 2 via steel cables 12. With this structure, In a preferred embodiment, the side platform 3 includes a flat plate 301 with multiple mounting slots 302 and multiple connecting beams 303. The rotating climbing frame 5 rests against the mounting slots 302. With this structure, the horizontal frame 501 of the rotating climbing frame 5 is mounted on the top of the mounting slot 302, the adjusting cylinder 9 is located at the bottom of the mounting slot 302, and the vertical frame 502 is located on one side of the mounting slot 302.

[0029] In the preferred embodiment, the intermediate platform 4 includes a top plate 401, with multiple sliding beams 402 on both sides of the bottom of the top plate 401. One end of each sliding beam 402 is equipped with a limiting plate 403 and a lifting lug 404. With this structure, at the start of construction, the entire device is connected to the lifting lug 404 of the intermediate platform 4 by a crane, and the entire device is lifted to the top of the conical well 1. The limiting plate 403 prevents one end of the intermediate platform 4 from sliding off the side platform 3, and prevents the side platform 3 from detaching from the intermediate platform 4.

[0030] In a preferred embodiment, the rotating climbing frame 5 includes a horizontal frame 501, on which a vertical frame 502 is rotatably connected. Both ends of the vertical frame 502 are provided with climbing formwork brackets 6, and a sliding second climbing formwork bracket 7 is provided on the vertical frame 502. With this structure, when the rotating climbing frame 5 needs to be raised or lowered, the second climbing formwork bracket 7 is retracted, and multiple lifting cylinders 8 are driven to make the second climbing formwork bracket 7 slide relative to the vertical frame 502. After sliding a certain distance, the second climbing formwork bracket 7 connects to the channel steel 11. The two climbing formwork brackets 6 are retracted, and multiple lifting cylinders 8 are driven to raise or lower the retractable platform 2. Simultaneously, the two side platforms 3 open and close relative to the middle platform 4, and the retractable platform 2 retracts.

[0031] In the preferred embodiment, the crossbeam 501 includes two U-shaped steels, with a transverse groove 5011 between them. The sliding beam 402 of the intermediate platform 4 slides against the transverse groove 5011. The top of the crossbeam 501 is provided with a top roller 504, and the bottom of the crossbeam 501 has multiple bottom rollers 505. With this structure, the top roller 504 and bottom rollers 505 on the rotating climbing frame 5 limit the sliding beam 402 of the intermediate platform 4, reducing frictional resistance. The side rollers 506 abut against the channel steel 11, facilitating the lifting and lowering of the rotating climbing frame 5 relative to the channel steel 11.

[0032] In a preferred embodiment, a rotating seat 507 is provided at one end of the vertical frame 502, and the rotating seat 507 is rotatably connected to the horizontal frame 501. A vertical groove 5021 is provided on the vertical frame 502, and an adjusting cylinder 9 is provided between the vertical frame 502 and the horizontal frame 501. The adjusting cylinder 9 includes a sliding seat 901, which slides against the vertical groove 5021. With this structure, the vertical frame 502 and the horizontal frame 501 are rotatably connected, so that the rotating climbing frame 5 can adapt to the conical well 1 with different inclination angles.

[0033] In the preferred embodiment, the vertical frame 502 is provided with a connecting plate 5022, and the connecting plate 5022 is provided with a lifting cylinder 8. One end of the lifting cylinder 8 is connected to the second climbing formwork hanging seat 7, one end of the adjusting cylinder 9 is rotatably connected to the sliding seat 901, and the other end of the adjusting cylinder 9 is rotatably connected to the horizontal frame 501.

[0034] In the preferred embodiment, a plurality of measuring rollers 506 are provided on one side of the vertical frame 502. The measuring rollers 506 roll against the channel steel 11. A positioning bolt 10 is provided at one end of the vertical frame 502. The climbing formwork bracket 6 and the second climbing formwork bracket 7 have the same structure. With this structure, when the overall structural height remains unchanged, if workers need to work at this height, the positioning bolt 10 passes through the channel steel 11 to connect the channel steel 11 to the conical well 1, further fixing the overall structure and increasing its safety. The climbing formwork bracket 6 is a common structure in the field and is prior art, so it will not be explained in detail.

[0035] Example 2: Further explanation based on Embodiment 1: A lifting method for a hoisting platform for a conical hollow pier inner shaft, characterized by: S1, hoisting of the retractable platform 2: the retractable platform 2 is placed on top of the conical shaft 1 by a crane, the side platforms 3 on both sides are manually pulled to one side of the channel steel 11, the climbing formwork bracket 6 at the top is connected to the channel steel 11, and the crane is removed. S2. Rotate the climbing frame 5 to adjust: drive the adjusting cylinder 9 so that multiple measuring rollers 506 abut against the channel steel 11, the vertical frame 502 is parallel to the channel steel 11, and the climbing formwork bracket 6 and the second climbing formwork bracket 7 are both connected to the channel steel 11. S3, Lifting and lowering of retractable platform 2: retract the second climbing formwork bracket 7, drive multiple lifting cylinders 8 to make the second climbing formwork bracket 7 slide relative to the vertical frame 502, and after sliding a certain distance, the second climbing formwork bracket 7 is connected to the channel steel 11. S4. Retract the two climbing formwork brackets 6 and drive multiple lifting cylinders 8 to raise and lower the shrinking platform 2. At the same time, the two side platforms 3 open and close relative to the middle platform 4, and the shrinking platform 2 shrinks. S5. Install positioning bolts 10 on the rotating climbing frame 5 so that the positioning bolts 10 are connected to the conical well 1 and the channel steel 11.

[0036] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A tapered hollow pier inner shaft hoisting platform, characterized in that: The utility model relates to a telescopic platform, including conical well (1), be equipped with shrink platform (2) on conical well (1), shrink platform (2) include middle platform (4) and two side platforms (3), be equipped with a plurality of rotary climbing frames (5) on side platform (3), rotary climbing frame (5) include crosspiece (501) and vertical frame (502), be equipped with a plurality of channel steel (11) on conical well (1), vertical frame (502) is slid on channel steel (11) and is supported.

2. The conical hollow pier inner shaft lifting platform according to claim 1, characterized in that: The inner wall of the conical well (1) is provided with a plurality of channel steels (11), and the channel steels (11) are provided with a plurality of positioning holes.

3. The tapered hollow pier inner shaft elevator platform according to claim 1, characterized in that: The side platform (3) includes a flat plate (301), and the flat plate (301) is provided with a plurality of mounting grooves (302).

4. The tapered hollow pier inner shaft elevator platform according to claim 1, characterized in that: The middle platform (4) includes a top plate (401), and both sides of the bottom of the top plate (401) are provided with a plurality of sliding beams (402).

5. The tapered hollow pier inner shaft elevator platform according to claim 1, characterized in that: The crosspiece (501) is provided with a vertically connected vertical frame (502), both ends of the vertical frame (502) are provided with a climbing form hanging seat (6), and the vertical frame (502) is provided with a sliding second climbing form hanging seat (7).

6. The tapered hollow pier inner shaft elevator platform according to claim 1, characterized in that: The crosspiece (501) includes two U-shaped steels, and a horizontal groove (5011) is arranged between the two U-shaped steels.

7. The tapered hollow pier inner shaft elevator platform according to claim 1, characterized in that: The vertical frame (502) is provided with a rotating seat (507) at one end, the rotating seat (507) is rotationally connected with the crosspiece (501), the vertical frame (502) is provided with a vertical groove (5021), and an adjusting oil cylinder (9) is arranged between the vertical frame (502) and the crosspiece (501).

8. The conical hollow pier inner shaft lifting platform according to claim 7, characterized in that: The vertical frame (502) is provided with a connecting plate (5022), the connecting plate (5022) is provided with a lifting oil cylinder (8), one end of the lifting oil cylinder (8) is connected with the second climbing form hanging seat (7), one end of the adjusting oil cylinder (9) is rotationally connected with the sliding seat (901), and the other end of the adjusting oil cylinder (9) is rotationally connected with the crosspiece (501).

9. The tapered hollow pier inner shaft elevator platform according to claim 7, characterized in that: The vertical frame (502) is provided with a plurality of measuring rollers (506) on one side, the measuring rollers (506) roll on the channel steel (11), one end of the vertical frame (502) is provided with a positioning bolt (10), and the climbing form hanging seat (6) and the second climbing form hanging seat (7) are the same in structure.

10. The method of claim 1-9, wherein the method is characterized in that: S1, the telescopic platform (2) is lifted: the telescopic platform (2) is placed into the top of the conical well (1) by the crane, the side platforms (3) on both sides are manually pulled to one side of the channel steel (11), the climbing form hanging seat (6) at the top is connected with the channel steel (11), and the crane is removed. S2, rotate the climbing frame (5) adjustment: drive adjustment cylinder (9), so that a plurality of measuring roller (506) are against on the channel steel (11), vertical frame (502) and channel steel (11) parallel, climbing formwork hanging seat (6) and the second climbing formwork hanging seat (7) are connected with channel steel (11); S3, retracting platform (2) lifting: retract the second climbing formwork hanging seat (7), drive a plurality of lifting cylinder (8), so that the second climbing formwork hanging seat (7) is connected with channel steel (11) after sliding a distance relative to vertical frame (502); S4, retracting two climbing formwork hanging seat (6), drive a plurality of lifting cylinder (8), so that the retracting platform (2) lifting, while the two side platform (3) relative to the middle platform (4) opening and closing, retracting platform (2) realizes the shrinkage; S5, rotating the climbing frame (5) on the installation positioning bolt (10), so that the positioning bolt (10) and the tapered well (1) and channel steel (11) are connected.

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