Perpendicularity control equipment for squat silo sliding formwork construction and installation method

Abstract

The invention discloses perpendicularity control equipment for squat silo sliding formwork construction and an installation method, and relates to the technical field of squat silo sliding formwork construction. The perpendicularity control equipment for squat silo sliding formwork construction comprises a laser target and a laser plumb instrument, an observation opening is formed in the top of the laser target, the bottom of the laser target is fixedly connected with a shading cylinder and a first limiting ring, the outer surface of the shading cylinder is fixedly connected with a first fixed ring, and the outer surface of the shading cylinder is sleeved with a first movable ring; a groove in the outer surface of the first fixed ring is rotationally connected with a first supporting leg, the lower surface of the first movable ring is fixedly connected with a first connecting rod, the upper surface of the first movable ring is fixedly connected with a first connecting ring, the bottom of the laser plumb instrument is fixedly connected with a fixed base, and the outer surface of the fixed base is fixedly connected with a second fixed ring; through the synergistic effect of the three sets of linkage supporting legs and the magnetic repulsive force locking mechanism, rapid deployment and stable locking of equipment are achieved.

Description

Technical Field

[0001] This invention relates to the field of shallow circular silo sliding formwork construction technology, specifically to a verticality control device and installation method for shallow circular silo sliding formwork construction. Background Technology

[0002] Slipform construction for shallow circular silos is a highly efficient construction technology applied to tall, vertical structures such as silos. It utilizes a hydraulic jack system to drive the formwork to slide up the structural contour at a uniform speed, enabling simultaneous concrete pouring and formwork lifting. This technology is particularly suitable for storage buildings with large diameters and heights, such as shallow circular silos. Its core components include a formwork system, a hydraulic lifting system, and an operating platform, significantly improving construction efficiency while ensuring structural integrity. Verticality control is a crucial aspect of the construction process.

[0003] In the construction of shallow circular silo sliding formwork, verticality control is a key aspect to ensure the accuracy of the silo structure. Although the laser measuring equipment currently used can improve the measurement accuracy, the installation of the existing equipment is inconvenient, requiring special brackets for fixation. Furthermore, the support structure lacks a quick-release function, making it difficult to deploy quickly. At the same time, the existing equipment is susceptible to interference from ambient stray light, which can lead to reading deviations. These limitations seriously affect the continuous operation efficiency of sliding formwork construction. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a verticality control device and installation method for shallow circular silo sliding formwork construction, thereby solving the problems mentioned in the background art, such as the inconvenience of installation of existing laser measuring equipment, reliance on dedicated brackets, low efficiency of support structure retraction leading to deployment difficulties, and susceptibility to interference from ambient stray light affecting measurement accuracy.

[0005] To solve the above problems, the present invention provides the following technical solution: a verticality control device and installation method for shallow circular silo sliding formwork construction, comprising a laser target and a laser plumb bob. The top of the laser target is provided with an observation port. A light-shielding cylinder and a first limiting ring are fixedly connected to the bottom of the laser target. A first fixing ring is fixedly connected to the outer surface of the light-shielding cylinder. A first movable ring is sleeved on the outer surface of the light-shielding cylinder. A first support leg is rotatably connected to a groove on the outer surface of the first fixing ring. A first connecting rod is fixedly connected to the lower surface of the first movable ring. A first connecting ring is fixedly connected to the upper surface of the first movable ring. A fixed base is fixedly connected to the bottom of the laser plumb bob. The outer surface of the fixed base is fixedly connected to... The system includes a second fixed ring, a second support leg rotatably connected to a groove on the outer surface of the second fixed ring, a fixed post fixedly connected to the middle of the bottom of the fixed base, a second movable ring sleeved on the outer surface of the fixed post, a second connecting rod fixedly connected to the outer surface of the second movable ring, a second connecting ring fixedly connected to the upper surface of the second movable ring, a second limiting ring fixedly connected to the lower surface of the fixed base, a locking mechanism on the outer surfaces of both the first and second limiting rings, an elastic support foot fixedly connected to the bottom end of the first support leg, the elastic support foot including an upper connecting block and a first support block, a fixed block fixedly connected to the lower surface of the upper connecting block, and an adjustable support foot fixedly connected to the bottom end of the second support leg.

[0006] Preferably, the first movable ring is disposed above the first fixed ring, and the end of the first connecting rod away from the first movable ring is hinged to the outer surface of the first support leg. The first support leg and the first connecting rod are provided in three sets and arranged in a ring around the central axis of the laser target.

[0007] Preferably, the inner surface of the first connecting ring is sleeved on the outer surface of the light-shielding tube, and the outer surface of the first connecting ring is adapted to the inner surface of the first limiting ring. The inner surface of the second connecting ring is sleeved on the outer surface of the fixing post, and the outer surface of the second connecting ring is adapted to the inner surface of the second limiting ring.

[0008] Preferably, the end of the second connecting rod away from the second movable ring is hinged to the outer surface of the second support leg, and the second support leg and the second connecting rod are provided in three sets and arranged in a ring around the central axis of the laser plumb line.

[0009] Preferably, the locking mechanism is symmetrically arranged on both sides of the first limiting ring and both sides of the second limiting ring. The locking mechanism includes a fixed sleeve, one end of which is fixedly connected to the outer surface of the first limiting ring and the second limiting ring. A first magnetic ring is sleeved on the inner surface of the fixed sleeve. A limiting rod is fixedly connected inside the first magnetic ring. Both ends of the limiting rod pass through both ends of the fixed sleeve.

[0010] Preferably, a pull block is fixedly connected to the end of the limiting rod, and the end of the limiting rod away from the pull block passes through the through hole on the outer surface of the first limiting ring and the second limiting ring. A second magnetic ring is fixedly connected to the inner surface of the fixing sleeve, and the second magnetic ring is disposed opposite to the first magnetic ring.

[0011] Preferably, the top of both the first connecting ring and the second connecting ring is provided with an inclined portion, and the outer surface of the first connecting ring and the second connecting ring is provided with a limiting hole, and the outer surface of the limiting rod is adapted to the interior of the limiting hole.

[0012] Preferably, the outer surface of the fixing block is fitted onto the top of the first support block, the first support block has an internal cavity, the lower surface of the fixing block is fixedly connected to a first magnetic plate, the bottom of the internal cavity is fixedly connected to a second magnetic plate, the edge of the first magnetic plate is fixedly connected to a rubber ring, the outer surface of the rubber ring is in contact with the inner wall of the internal cavity, the top of the internal cavity is fixedly connected to a spring, the bottom end of the spring is fixedly connected to the upper surface of the first magnetic plate, and the lower surface of the first support block is fixedly connected to an anti-slip pad.

[0013] Preferably, the adjustable support leg includes an upper connecting seat, the upper connecting seat has a threaded groove inside, a threaded support rod is threadedly connected inside the threaded groove, the outer surface of the threaded support rod penetrates the bottom of the upper connecting seat, and a second support block is fixedly connected to the bottom end of the threaded support rod.

[0014] A method for installing a verticality control device for shallow circular silo sliding formwork construction includes the following steps: S1. Install the laser plumb bob: Move the second movable ring upward to the locked position, so that the second support leg opens automatically, and fix the laser plumb bob in the center of the warehouse foundation. S2. Install the laser target: Move the first movable ring upward to the locked position, so that the first support leg automatically opens and fixes the laser target to the operating platform; S3. Verticality monitoring: Start the laser plumb bob and emit a laser beam to the laser target. Read the offset through the observation port and calibrate.

[0015] This invention provides a verticality control device and installation method for shallow circular silo sliding formwork construction. It has the following beneficial effects: 1. The verticality control equipment and installation method for the construction of shallow circular silos using sliding formwork achieves rapid deployment and stable locking of the equipment through the coordinated design of three sets of linked support legs and a magnetic repulsion locking mechanism. During deployment, only the corresponding movable ring needs to be moved, which allows the corresponding support leg to automatically unfold through the linkage mechanism to form a triangular support system. At the same time, the magnetic repulsion drives the limit rod to accurately insert into the limit hole of the connecting ring, completing self-locking. This design significantly improves the equipment positioning efficiency in the construction of large-diameter shallow circular silos, greatly shortens the installation time, and also enables rapid retraction. During retraction, only the pull block needs to be pulled outward to overcome the magnetic force, and the limit rod can be withdrawn from the hole. The movable ring and support leg automatically descend and reset under the action of gravity. The entire retraction process is tool-free and extremely fast, greatly reducing the disassembly and retraction time of the equipment and effectively adapting to the continuous and rapid operation rhythm of slipform construction.

[0016] 2. The verticality control equipment and installation method for the construction of the shallow circular silo sliding formwork effectively solves the problem of light interference at the construction site through the integrated design of the light-shielding tube and the special plastic laser target. The light-shielding tube adopts a multi-layer light-absorbing structure, which can filter ambient stray light. Combined with the high-sensitivity plastic target surface, the accuracy of laser beam offset recognition is greatly improved. Construction personnel can intuitively judge the tilt direction and amplitude of the silo without professional measuring tools, significantly reducing the error of manual reading.

[0017] 3. The verticality control equipment and installation method for the construction of the shallow circular silo sliding formwork greatly improves the equipment's anti-interference capability through the multi-level buffer mechanism inside the elastic support legs. The first and second magnetic plates with opposite poles provide the main repulsive force to resist vibration impact, the spring provides elastic recovery in the vertical direction, and the rubber ring effectively dissipates energy through friction with the inner cavity wall. The three work together to absorb and attenuate various low-frequency and instantaneous vibrations transmitted to the operating platform by hydraulic jacking, mechanical vibration, and personnel movement, ensuring that the laser target remains continuously stable in the dynamic construction environment and guaranteeing the continuity and reliability of monitoring data.

[0018] 4. The verticality control equipment and installation method for the construction of the shallow circular silo sliding formwork, through the threaded fine-tuning structure of the adjustable support legs, gives the equipment excellent ground adaptability. The height of each support point can be independently adjusted by rotating the threaded strut, which compensates for the support instability caused by local unevenness, slope or small debris in the concrete foundation inside the silo, and further improves the emission accuracy of the vertical laser beam and the stability of the laser plumb bob. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall planar structure of the present invention; Figure 3 This is a schematic diagram of the structure of the laser target and its external support of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the laser target of the present invention; Figure 5 This is a schematic diagram of the connection between the first connecting ring and the first limiting ring of the present invention; Figure 6 This is a cross-sectional structural schematic diagram of the elastic support leg of the present invention; Figure 7 This is a schematic diagram of the laser plumb bob and its external support of the present invention; Figure 8 This is a cross-sectional view of the fixed base of the present invention; Figure 9 This is a schematic diagram of the connection between the second connecting ring and the second limiting ring of the present invention; Figure 10 This is a schematic diagram of the locking mechanism of the present invention; Figure 11 This is a schematic diagram of the adjustable support legs of the present invention.

[0020] In the diagram: 1. Laser target; 2. Laser plumb bob; 3. Observation port; 4. Light-shielding tube; 5. First fixing ring; 6. First support leg; 7. First connecting rod; 8. First movable ring; 9. First connecting ring; 10. First limiting ring; 11. Fixed base; 12. Second fixing ring; 13. Second support leg; 14. Second connecting rod; 15. Fixed column; 16. Second movable ring; 17. Second connecting ring; 18. Second limiting ring; 19. Locking mechanism; 191. Fixed sleeve; 192. First magnet 193. Ring; 194. Limiting rod; 195. Second magnetic ring; 196. Pull block; 20. Inclined part; 21. Limiting hole; 22. Elastic support foot; 221. Upper connecting block; 222. First support block; 223. Fixing block; 224. Internal cavity; 225. First magnetic plate; 226. Second magnetic plate; 227. Rubber ring; 228. Spring; 229. Anti-slip pad; 23. Adjustable support foot; 231. Upper connecting seat; 232. Threaded groove; 233. Threaded support rod; 234. Second support block. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0022] like Figures 1-11As shown, the present invention provides a technical solution: a verticality control device and installation method for shallow circular silo sliding formwork construction, including a laser target 1 and a laser plumb bob 2. The top of the laser target 1 is provided with an observation port 3. A light-shielding cylinder 4 and a first limiting ring 10 are fixedly connected to the bottom of the laser target 1. A first fixing ring 5 is fixedly connected to the outer surface of the light-shielding cylinder 4. A first movable ring 8 is sleeved on the outer surface of the light-shielding cylinder 4. A first support leg 6 is rotatably connected to the groove on the outer surface of the first fixing ring 5. A first connecting rod 7 is fixedly connected to the lower surface of the first movable ring 8. A first connecting ring 9 is fixedly connected to the upper surface of the first movable ring 8. A fixed base 11 is fixedly connected to the bottom of the laser plumb bob 2. A second fixing ring 12 is fixedly connected to the outer surface of the fixed base 11. The groove on the surface is rotatably connected to the second support leg 13. The middle of the bottom of the fixed base 11 is fixedly connected to the fixed column 15. The outer surface of the fixed column 15 is fitted with the second movable ring 16. The outer surface of the second movable ring 16 is fixedly connected to the second connecting rod 14. The upper surface of the second movable ring 16 is fixedly connected to the second connecting ring 17. The lower surface of the fixed base 11 is fixedly connected to the second limiting ring 18. The outer surfaces of the first limiting ring 10 and the second limiting ring 18 are both provided with locking mechanisms 19. The bottom end of the first support leg 6 is fixedly connected to the elastic support foot 22. The elastic support foot 22 includes an upper connecting block 221 and a first support block 222. The lower surface of the upper connecting block 221 is fixedly connected to the fixed block 223. The bottom end of the second support leg 13 is fixedly connected to the adjustable support foot 23.

[0023] The first movable ring 8 is positioned above the first fixed ring 5. The end of the first connecting rod 7 away from the first movable ring 8 is hinged to the outer surface of the first support leg 6. The first support leg 6 and the first connecting rod 7 are arranged in three sets in a ring around the central axis of the laser target 1.

[0024] The inner surface of the first connecting ring 9 is sleeved on the outer surface of the light-shielding tube 4, and the outer surface of the first connecting ring 9 is adapted to the inner surface of the first limiting ring 10. The inner surface of the second connecting ring 17 is sleeved on the outer surface of the fixing post 15, and the outer surface of the second connecting ring 17 is adapted to the inner surface of the second limiting ring 18.

[0025] The end of the second connecting rod 14 away from the second movable ring 16 is hinged to the outer surface of the second support leg 13. The second support leg 13 and the second connecting rod 14 are provided in three sets and arranged in a ring around the central axis of the laser plumb bob 2.

[0026] The locking mechanism 19 is symmetrically arranged on both sides of the first limiting ring 10 and the second limiting ring 18. The locking mechanism 19 includes a fixed sleeve 191. One end of the fixed sleeve 191 is fixedly connected to the outer surface of the first limiting ring 10 and the second limiting ring 18. A first magnetic ring 192 is sleeved on the inner surface of the fixed sleeve 191. A limiting rod 193 is fixedly connected inside the first magnetic ring 192. Both ends of the limiting rod 193 pass through both ends of the fixed sleeve 191.

[0027] A pull block 195 is fixedly connected to the end of the limiting rod 193. The end of the limiting rod 193 away from the pull block 195 passes through the through hole on the outer surface of the first limiting ring 10 and the second limiting ring 18. A second magnetic ring 194 is fixedly connected to the inner surface of the fixing sleeve 191. The second magnetic ring 194 is located opposite to the first magnetic ring 192.

[0028] The top of the first connecting ring 9 and the second connecting ring 17 are both provided with inclined portions 20. The outer surfaces of the first connecting ring 9 and the second connecting ring 17 are provided with limiting holes 21, and the outer surface of the limiting rod 193 is adapted to the interior of the limiting hole 21.

[0029] The outer surface of the fixing block 223 is fitted onto the top of the first support block 222. The first support block 222 has an inner cavity 224. The lower surface of the fixing block 223 is fixedly connected to the first magnetic plate 225. The bottom of the inner cavity 224 is fixedly connected to the second magnetic plate 226. The edge of the first magnetic plate 225 is fixedly connected to the rubber ring 227. The outer surface of the rubber ring 227 is in contact with the inner wall of the inner cavity 224. The top of the inner cavity 224 is fixedly connected to the spring 228. The bottom end of the spring 228 is fixedly connected to the upper surface of the first magnetic plate 225. The lower surface of the first support block 222 is fixedly connected to the anti-slip pad 229.

[0030] The adjustable support leg 23 includes an upper connecting seat 231. The upper connecting seat 231 has a threaded groove 232 inside. A threaded support rod 233 is threadedly connected inside the threaded groove 232. The outer surface of the threaded support rod 233 penetrates the bottom of the upper connecting seat 231. A second support block 234 is fixedly connected to the bottom end of the threaded support rod 233.

[0031] A method for installing a verticality control device for shallow circular silo sliding formwork construction includes the following steps: S1. Install the laser plumb bob: Move the second movable ring 16 upward to the locked position, so that the second support leg 13 automatically opens and fixes the laser plumb bob 2 to the center of the warehouse foundation. S2. Install the laser target: Move the first movable ring 8 upward to the locked position, so that the first support leg 6 automatically opens and fixes the laser target 1 to the operating platform. S3. Verticality monitoring: Start the laser plumb bob 2 to emit a laser beam to the laser target 1, and read the offset through the observation port 3 and calibrate.

[0032] The working principle of the above embodiments: When installing the laser plumb bob 2, move the second movable ring 16 upwards until the second connecting ring 17 enters the gap between the second limiting ring 18 and the fixed post 15. As the inclined part 20 at the top of the second connecting ring 17 passes the limiting rod 193 in the locking mechanism 19 on the second limiting ring 18, the limiting rod 193 is pushed outwards, causing the first magnetic ring 192 to approach the second magnetic ring 194. Since the first magnetic ring 192 and the second magnetic ring 194 are of the same polarity and repel each other, the first magnetic ring 192 generates a magnetic repulsive force as it approaches the second magnetic ring 194. When the top of the second connecting ring 17 abuts against the fixed post... When the second connecting ring 17 is at the bottom of the seat 11, the limiting hole 21 on the second connecting ring 17 moves to be aligned with the limiting rod 193. At this time, under the action of magnetic repulsion, the limiting rod 193 is driven to insert into the limiting hole 21, so that the second connecting ring 17 is automatically locked by the locking mechanism 19. During the upward movement of the second movable ring 16, the second support leg 13 opens synchronously under the push of the second connecting rod 14. After the second connecting ring 17 is locked by the locking mechanism 19, the second support leg 13 remains in the open state. Then, the laser plumb bob 2 is placed in the center of the foundation of the shallow circular warehouse to realize the rapid deployment of the laser plumb bob 2.

[0033] When installing the laser target 1, the first movable ring 8 is moved upward until the first connecting ring 9 enters the gap between the first limiting ring 10 and the light-shielding tube 4. As the inclined part 20 at the top of the first connecting ring 9 passes the limiting rod 193 in the locking mechanism 19 on the first limiting ring 10, the limiting rod 193 is pushed outward, causing the first magnetic ring 192 to approach the second magnetic ring 194. When the top of the first connecting ring 9 abuts against the bottom of the laser target 1, the limiting hole 21 on the first connecting ring 9 moves to align with the limiting rod 193. At this time, under the action of magnetic repulsion, the limiting rod 193 is inserted into the limiting hole 21, so that the first connecting ring 9 is automatically locked by the locking mechanism 19. During the upward movement of the first movable ring 8, the first support leg 6 opens synchronously under the pull of the first connecting rod 7. After the first connecting ring 9 is locked by the locking mechanism 19, the first support leg 6 remains in the open state. Then, the laser target 1 is placed on the ring operating platform to achieve rapid deployment of the laser target 1.

[0034] When performing verticality control, the laser plumb bob 2 is fixed at the center of the foundation in the warehouse and emits a vertical laser beam upward, which penetrates the construction holes of each layer and reaches the operating platform. The laser target 1 is isolated from ambient stray light by the light shield 4. The laser beam is accurately projected onto the center of the cross scale on the target surface. When the warehouse tilts, the laser spot shifts on the target surface. The direction and value of the shift are read through the observation port 3. The three-dimensional deviation is calculated by combining the target position data. The calibration is performed based on the deviation. The laser target 1 is a special plastic receiving target.

[0035] With the elastic support 22, when the laser target 1 is placed on the operating platform, the first magnetic plate 225 and the second magnetic plate 226 inside the first support block 222 generate magnetic repulsion, the spring 228 provides elastic restoring force, and the rubber ring 227 and the inner wall of the inner cavity 224 form frictional resistance. These three work together to form a multi-level buffer mechanism, which can effectively absorb and attenuate the impact and shaking caused by the platform vibration, significantly reduce the adverse effects of vibration on the laser target 1, and thus ensure that the laser target 1 can receive the laser beam stably and accurately.

[0036] With the adjustable support leg 23, if the foundation surface is uneven when the laser plumb bob 2 is installed on the warehouse foundation, causing the second support leg 13 to be unable to provide stable support, the height of the second support block 234 can be adjusted by rotating the threaded support rod 233, so that each support point is in full contact with the ground, ensuring the overall stability of the laser plumb bob 2. This structure effectively adapts to uneven foundation conditions, further improving the emission accuracy of the vertical laser beam and the stability of the laser plumb bob.

[0037] When the equipment is not in use, by pulling outward the pull block 195 of the locking mechanism 19 on the first limiting ring 10, the limiting rod 193 is disengaged from the limiting hole 21. Under the action of gravity, the first connecting ring 9 and the first movable ring 8 move downward, and at the same time the first support leg 6 retracts, reducing the space occupied by the laser target 1. Similarly, the second support leg 13 on the laser plumb bob 2 retracts, reducing the space occupied by the laser plumb bob 2 and making it easier to store.

[0038] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A verticality control device for shallow circular silo sliding formwork construction, comprising a laser target (1) and a laser plumb bob (2), characterized in that: The laser target (1) has an observation port (3) at its top. A light-shielding tube (4) and a first limiting ring (10) are fixedly connected to the bottom of the laser target (1). A first fixing ring (5) is fixedly connected to the outer surface of the light-shielding tube (4). A first movable ring (8) is sleeved on the outer surface of the light-shielding tube (4). A first support leg (6) is rotatably connected to the groove on the outer surface of the first fixing ring (5). A first connecting rod (7) is fixedly connected to the lower surface of the first movable ring (8). A first connecting ring (9) is fixedly connected to the upper surface of the first movable ring (8). A fixed base (11) is fixedly connected to the bottom of the laser plumb bob (2). A second fixing ring (12) is fixedly connected to the outer surface of the fixed base (11). A second support leg (13) is rotatably connected to the groove on the outer surface of the second fixing ring (12). A fixed column (15) is fixedly connected to the middle of the bottom. A second movable ring (16) is sleeved on the outer surface of the fixed column (15). A second connecting rod (14) is fixedly connected to the outer surface of the second movable ring (16). A second connecting ring (17) is fixedly connected to the upper surface of the second movable ring (16). A second limiting ring (18) is fixedly connected to the lower surface of the fixed base (11). A locking mechanism (19) is provided on the outer surface of both the first limiting ring (10) and the second limiting ring (18). An elastic support foot (22) is fixedly connected to the bottom end of the first support leg (6). The elastic support foot (22) includes an upper connecting block (221) and a first support block (222). A fixed block (223) is fixedly connected to the lower surface of the upper connecting block (221). An adjustable support foot (23) is fixedly connected to the bottom end of the second support leg (13).

2. The verticality control device for shallow circular silo sliding formwork construction according to claim 1, characterized in that: The first movable ring (8) is located above the first fixed ring (5). The end of the first connecting rod (7) away from the first movable ring (8) is hinged to the outer surface of the first support leg (6). The first support leg (6) and the first connecting rod (7) are arranged in three sets and are arranged in a ring around the central axis of the laser target (1).

3. The verticality control device for shallow circular silo sliding formwork construction according to claim 1, characterized in that: The inner surface of the first connecting ring (9) is sleeved on the outer surface of the light-shielding tube (4), and the outer surface of the first connecting ring (9) is adapted to the inner surface of the first limiting ring (10). The inner surface of the second connecting ring (17) is sleeved on the outer surface of the fixing post (15), and the outer surface of the second connecting ring (17) is adapted to the inner surface of the second limiting ring (18).

4. The verticality control device for shallow circular silo sliding formwork construction according to claim 1, characterized in that: The end of the second connecting rod (14) away from the second movable ring (16) is hinged to the outer surface of the second support leg (13). The second support leg (13) and the second connecting rod (14) are arranged in three sets in a ring around the central axis of the laser plumb bob (2).

5. The verticality control device for shallow circular silo sliding formwork construction according to claim 1, characterized in that: The locking mechanism (19) is symmetrically arranged on both sides of the first limiting ring (10) and the second limiting ring (18). The locking mechanism (19) includes a fixed sleeve (191). One end of the fixed sleeve (191) is fixedly connected to the outer surface of the first limiting ring (10) and the second limiting ring (18). A first magnetic ring (192) is sleeved on the inner surface of the fixed sleeve (191). A limiting rod (193) is fixedly connected inside the first magnetic ring (192). Both ends of the limiting rod (193) pass through both ends of the fixed sleeve (191).

6. The verticality control device for shallow circular silo sliding formwork construction according to claim 5, characterized in that: The end of the limiting rod (193) is fixedly connected to a pull block (195). The end of the limiting rod (193) away from the pull block (195) passes through the through hole on the outer surface of the first limiting ring (10) and the second limiting ring (18). The inner surface of the fixing sleeve (191) is fixedly connected to a second magnetic ring (194). The second magnetic ring (194) is located opposite to the first magnetic ring (192).

7. The verticality control device for shallow circular silo sliding formwork construction according to claim 5, characterized in that: The top of the first connecting ring (9) and the second connecting ring (17) are both provided with inclined portions (20), and the outer surfaces of the first connecting ring (9) and the second connecting ring (17) are provided with limiting holes (21), and the outer surface of the limiting rod (193) is adapted to the interior of the limiting hole (21).

8. The verticality control device for shallow circular silo sliding formwork construction according to claim 1, characterized in that: The outer surface of the fixing block (223) is fitted onto the top of the first support block (222). The first support block (222) has an internal cavity (224). The lower surface of the fixing block (223) is fixedly connected to a first magnetic plate (225). The bottom of the internal cavity (224) is fixedly connected to a second magnetic plate (226). The edge of the first magnetic plate (225) is fixedly connected to a rubber ring (227). The outer surface of the rubber ring (227) is in contact with the inner wall of the internal cavity (224). The top of the internal cavity (224) is fixedly connected to a spring (228). The bottom end of the spring (228) is fixedly connected to the upper surface of the first magnetic plate (225). The lower surface of the first support block (222) is fixedly connected to an anti-slip pad (229).

9. The verticality control device for shallow circular silo sliding formwork construction according to claim 1, characterized in that: The adjustable support leg (23) includes an upper connecting seat (231), the upper connecting seat (231) has a threaded groove (232) inside, a threaded support rod (233) is threadedly connected inside the threaded groove (232), the outer surface of the threaded support rod (233) penetrates the bottom of the upper connecting seat (231), and a second support block (234) is fixedly connected to the bottom end of the threaded support rod (233).

10. The installation method of a verticality control device for shallow circular silo sliding formwork construction according to claims 1-9, characterized in that, Includes the following steps: S1. Install the laser plumb bob (2): Move the second movable ring (16) upward to the locked position, so that the second support leg (13) automatically opens and fixes the laser plumb bob (2) to the center of the warehouse foundation. S2. Install the laser target (1): Move the first movable ring (8) upward to the locked position so that the first support leg (6) automatically opens and fixes the laser target (1) to the operating platform. S3, Verticality monitoring: Start the laser plumb bob (2) to emit a laser beam to the laser target (1), and read the offset through the observation port (3) and calibrate.

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