Lifting equipment for large-span steel structure

Abstract

The invention discloses hoisting equipment for a large-span steel structure, and relates to the technical field of hoisting equipment, the hoisting equipment comprises a mounting plate, three vertical plates are fixedly arranged at the top of the mounting plate, a linkage rod is rotatably connected among the three vertical plates in a penetrating manner, and one end of the linkage rod penetrates through one of the vertical plates and is fixedly connected with an output shaft of a motor; two winding rollers are fixedly arranged outside the linkage rod, ropes are arranged outside the winding rollers, a grabbing structure is arranged between one ends of the two ropes, the grabbing structure comprises an I-shaped plate, the I-shaped plate is fixedly connected with one ends of the ropes, and a plurality of grabbing assemblies are arranged outside the I-shaped plate. According to the hoisting equipment for the large-span steel structure, the application range of the equipment can be widened, a U-shaped steel plate can be grabbed more and more tightly in the hoisting process, and meanwhile the problem that the U-shaped steel plate is thrown out due to shaking of the equipment is solved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, and in particular to a lifting equipment used for a large-span steel structure. Background Art

[0002] Steel structures are widely used in construction and other fields. They can enhance the stability of buildings. When transporting steel structures, especially large-span steel structures such as flat steel plates, U-shaped steel plates, I-shaped steel plates, etc., they need to be moved with the help of lifting equipment.

[0003] The Chinese patent with publication number "CN118108100A" discloses "a steel structure lattice shell lifting auxiliary device, including a lifting plate and a lifting ring, a lifting piece is fixedly arranged under the lifting ring, and a rotating piece is rotatably arranged in the lifting piece, and also includes: a movable limiting mechanism, and the movable limiting mechanism is used to connect the lifting plate and the rotating piece". Although it can achieve the effect of "the balance position point of the lattice shell after being lifted can be quickly adjusted through the movable limiting mechanism according to actual lifting needs, and the use is more flexible", it is only suitable for lifting steel structure lattice shells, and its use has limitations. It cannot be used to lift other steel structures such as U-shaped steel plates. In addition, other lifting equipment needs to avoid shaking during the lifting process. The auxiliary lifting equipment will throw out the lifted materials when shaking, and the lifting safety is not high. Therefore, the present invention proposes a lifting equipment for large-span steel structures. Summary of the invention

[0004] The main purpose of the present invention is to provide a lifting device for a large-span steel structure, which can effectively solve the technical problems raised in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A lifting device for a large-span steel structure, comprising a mounting plate, three vertical plates are fixedly arranged on the top of the mounting plate, a linkage rod is rotatably connected through the three vertical plates, and one end of the linkage rod passes through one of the vertical plates and is fixedly connected to the output shaft of a motor, two winding rollers are fixedly arranged on the outside of the linkage rod, a rope is arranged on the outside of the winding roller, and a grabbing structure is arranged between one ends of the two ropes; The grabbing structure includes an I-shaped plate and several groups of grabbing components. The I-shaped plate is fixedly connected to one end of a rope. Several groups of grabbing components are arranged outside the I-shaped plate. The grabbing components include a storage rack and a cross plate. The storage rack is connected to the I-shaped plate by bolt fasteners. Two slide plates are slidably arranged outside the cross plate. The bottom of the storage rack is rotatably connected to two connecting arms. One end of the connecting arm is rotatably connected to a fixing frame 1. The fixing frame 1 is fixedly connected to the slide plate. The bottom of the slide plate is fixedly connected to a supporting plate.

[0006] As a preferred technical solution of the present invention, a plurality of slots are provided on the top of the transverse plate, and a card block 1 is slidably provided on the inner side of the slot, two springs 1 are provided between the bottom of the card block 1 and the inner bottom surface of the slot, a storage slot is provided inside the transverse plate, and the grabbing assembly also includes a control assembly, and the control assembly includes a fixing frame 2, and the fixing frame 2 is fixedly connected to the transverse plate, and the fixing frame 2 is threadedly connected to a threaded rod, and one end of the threaded rod is rotatably connected to a pressure plate, and the pressure plate is adaptively matched with the storage slot and the card block 1, and the storage slot and the pressure plate are both H-shaped.

[0007] As a preferred technical solution of the present invention, the grabbing assembly also includes two groups of lateral limiting assemblies, the lateral limiting assemblies include a guide rod and a U-shaped plate, the guide rod and the slide plate are connected through, one end of the guide rod is fixedly connected to a baffle, one side of the baffle is fixedly provided with an anti-slip pad, the U-shaped plate and the slide plate are fixedly connected, and a spring 2 is provided between the guide rod and the U-shaped plate.

[0008] As a preferred technical solution of the present invention, a plurality of storage holes are opened on the top of the support plate, and the support plate is rotatably connected to two fixing rods, three pulleys are fixedly arranged on the outside of the fixing rods, and the pulleys and the storage holes are adaptively matched.

[0009] As a preferred technical solution of the present invention, the storage rack and the I-shaped plate are adaptively matched, and the bolt fasteners are composed of bolts and nuts.

[0010] As a preferred technical solution of the present invention, two sets of anti-sway structures are arranged at the bottom of the mounting plate, and the anti-sway structure includes a base, two fixed plates, a plurality of movable rods, two clamping blocks 2 and two connecting plates. The base is fixedly connected to the mounting plate, the fixed plate is fixedly connected to the base, the movable rod and the fixed plate are through-connected, the clamping block 2 and the connecting plate are fixedly connected to the movable rod, and a plurality of springs 3 are arranged between the clamping block 2 and the fixed plate.

[0011] As a preferred technical solution of the present invention, the anti-sway structure also includes two groups of thrust assemblies, the thrust assemblies include two L-shaped plates, an electric push rod and a push plate, the L-shaped plates and the connecting plates are fixedly connected, the electric push rod is arranged at the bottom of the mounting plate, and the push plate and one end of the electric push rod are fixedly connected.

[0012] As a preferred technical solution of the present invention, the spring three is located at the periphery of the corresponding movable rod, and the positions of the push plate and the L-shaped plate are adaptively matched.

[0013] As a preferred technical solution of the present invention, a limiting structure is provided at the bottom of the fixed plate, and the limiting structure includes a bottom plate, an arc plate and two screws. The bottom plate and the fixed plate are fixedly connected, and the arc plate is connected to the bottom plate by two screws.

[0014] As a preferred technical solution of the present invention, the I-shaped plate and the base are adaptively matched, and the two arc-shaped plates on the same side form an "eight" shape.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the grabbing structure, it is beneficial to perform the limiting work according to the size of the U-shaped steel plate or other shaped steel structures. When the equipment shakes during the lifting process, the block prevents the slide plate from retreating, and the U-shaped steel plate can be grasped more and more tightly during the lifting process, which greatly improves the safety of the equipment during the lifting process; 2. By setting the control component in conjunction with the grabbing structure, it is beneficial to press several blocks at the same time after the lifting is completed, so that the limited slide can return to the initial position, greatly reducing the tedious steps of pressing in sequence and improving work efficiency; 3. By setting the side limit component and the grabbing structure, it is beneficial to limit the side of the U-shaped steel plate, so that the side of the U-shaped steel plate is limited during the lifting process. At the same time, the setting of the anti-slip pad greatly enhances the friction force, avoiding the shaking caused by the lack of restriction on the side of the U-shaped steel plate; 4. By setting ropes, anti-sway structures and grabbing structures, it is helpful to limit the position of the I-shaped board, avoid the I-shaped board from shaking significantly during the lifting process, affecting the handling efficiency, and further improve the safety of lifting; 5. By setting the thrust assembly in conjunction with the anti-sway structure, it is convenient to remove the second clamping block when necessary, so as to release the restriction of the internal I-shaped plate located at the base, so that the I-shaped plate can be moved down for work; 6. By setting a limit structure in conjunction with an anti-sway structure, it is helpful to guide and limit the I-beam during its upward movement, and can guide the I-beam to gradually fit into the base, preventing the I-beam from deviating and failing to fit into the predetermined position of the base due to shaking when moving upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a lifting device for a large-span steel structure of the present invention; Figure 2 It is a schematic diagram of the split three-dimensional structure of a storage rack, a connecting arm and a fixing frame of a lifting device for a large-span steel structure of the present invention; Figure 3It is a schematic diagram of the split three-dimensional structure of a clamping block 1 and a cross plate of a lifting device for a large-span steel structure of the present invention; Figure 4 It is a schematic diagram of the split three-dimensional structure of a horizontal plate, a clamping block and a threaded rod of a hoisting device for a large-span steel structure of the present invention; Figure 5 It is a schematic diagram of the split three-dimensional structure of a pressure plate and a cross plate of a lifting device for a large-span steel structure according to the present invention; Figure 6 It is a schematic diagram of the split three-dimensional structure of a guide rod and a slide plate of a hoisting device for a large-span steel structure of the present invention; Figure 7 It is a schematic diagram of the split three-dimensional structure of a fixing rod and a supporting plate of a lifting device for a large-span steel structure of the present invention; Figure 8 It is a partial three-dimensional structural schematic diagram of a lifting device for a large-span steel structure of the present invention; Fig. 9 It is a schematic diagram of the split three-dimensional structure of a fixed plate and a movable rod of a lifting device for a large-span steel structure of the present invention; Fig.10 It is a three-dimensional structural schematic diagram of an electric push rod of a hoisting device for a large-span steel structure according to the present invention; Fig.11 It is a schematic diagram of the split three-dimensional structure of the arc plate and the bottom plate of a hoisting device for a large-span steel structure of the present invention; Fig.12 It is a schematic diagram of the overall front view structure of a lifting device for a large-span steel structure of the present invention; Fig.13 The present invention is a schematic diagram of the overall side view structure of a lifting device for a large-span steel structure.

[0017] In the figure: 1. mounting plate; 2. vertical plate; 3. linkage rod; 4. motor; 5. winding roller; 6. rope; 7. grabbing structure; 8. anti-sway structure; 9. limiting structure; 10. I-shaped plate; 11. storage rack; 12. horizontal plate; 13. slide plate; 14. bolt fastener; 15. connecting arm; 16. fixing frame 1; 17. support plate; 18. slot; 19. storage slot; 20. block 1; 21. spring 1; 22. fixing frame 2 ; 23. Threaded rod; 24. Pressure plate; 25. Guide rod; 26. Baffle; 27. Anti-slip pad; 28. U-shaped plate; 29. ​​Spring 2; 30. Storage hole; 31. Fixed rod; 32. Pulley; 33. Base; 34. Fixed plate; 35. Movable rod; 36. Block 2; 37. Connecting plate; 38. Spring 3; 39. L-shaped plate; 40. Electric push rod; 41. Push plate; 42. Bottom plate; 43. Arc plate; 44. Screw. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 13 As shown, a lifting device for a large-span steel structure comprises a mounting plate 1, three vertical plates 2 are fixedly arranged on the top of the mounting plate 1, a linkage rod 3 is rotatably connected through the three vertical plates 2, and one end of the linkage rod 3 passes through one of the vertical plates 2 and is fixedly connected to the output shaft of a motor 4, two winding rollers 5 are fixedly arranged outside the linkage rod 3, a rope 6 is arranged outside the winding roller 5, and a grabbing structure 7 is arranged between one ends of the two ropes 6; The grabbing structure 7 includes an I-shaped plate 10 and several groups of grabbing components. The I-shaped plate 10 is fixedly connected to one end of the rope 6. Several groups of grabbing components are arranged on the outside of the I-shaped plate 10. The grabbing components include a rack 11 and a cross plate 12. The rack 11 is connected to the I-shaped plate 10 by bolt fasteners 14. Two slides 13 are slidably arranged on the outside of the cross plate 12. The bottom of the rack 11 is rotatably connected to two connecting arms 15. One end of the connecting arm 15 is rotatably connected to a fixing frame 16. The fixing frame 16 is fixedly connected to the slide plate 13. The bottom of the slide plate 13 is fixedly connected to a support plate 17.

[0020] The grabbing structure 7 can perform limiting work according to the size of the U-shaped steel plate or other shaped steel structures. When the equipment shakes during the lifting process, the clamping block 20 prevents the slide plate 13 from retreating, and the U-shaped steel plate can be gripped tighter and tighter during the lifting process, which greatly improves the safety of the equipment during the lifting process.

[0021] In this embodiment, a plurality of slots 18 are provided on the top of the transverse plate 12, and a card block 20 is slidably provided on the inner side of the slot 18, two springs 21 are provided between the bottom of the card block 20 and the inner bottom surface of the slot 18, a storage slot 19 is provided inside the transverse plate 12, and the grabbing assembly also includes a control assembly, which includes a fixing frame 22, the fixing frame 22 is fixedly connected to the transverse plate 12, the fixing frame 22 is threadedly connected to a threaded rod 23, one end of the threaded rod 23 is rotatably connected to a pressure plate 24, the pressure plate 24 and the storage slot 19 and the card block 20 are adaptively matched, and the storage slot 19 and the pressure plate 24 are both H-shaped.

[0022] The control component cooperates with the grabbing structure 7 to press several blocks 20 at the same time after the lifting is completed, so that the limited slide 13 can return to the initial position, greatly reducing the tedious steps of pressing in sequence and improving work efficiency.

[0023] In this embodiment, the grabbing assembly also includes two groups of lateral limiting assemblies, which include a guide rod 25 and a U-shaped plate 28. The guide rod 25 and the slide plate 13 are connected through, one end of the guide rod 25 is fixedly connected to a baffle plate 26, one side of the baffle plate 26 is fixedly provided with an anti-slip pad 27, the U-shaped plate 28 and the slide plate 13 are fixedly connected, and a spring 29 is provided between the guide rod 25 and the U-shaped plate 28.

[0024] The side limiting component cooperates with the grabbing structure 7 to limit the side of the U-shaped steel plate, so that the side of the U-shaped steel plate is restricted during the lifting process. At the same time, the setting of the anti-slip pad 27 greatly enhances the friction force, avoiding the shaking caused by the lack of restriction on the side of the U-shaped steel plate.

[0025] In this embodiment, a plurality of storage holes 30 are opened on the top of the support plate 17, and two fixing rods 31 are rotatably connected to the support plate 17. Three pulleys 32 are fixedly arranged outside the fixing rods 31, and the pulleys 32 and the storage holes 30 are adaptively matched.

[0026] The provision of the pulley 32 is beneficial for enabling the support plate 17 to be quickly moved away from the bottom of the U-shaped steel plate.

[0027] In this embodiment, the storage rack 11 and the I-shaped plate 10 are adaptively matched, and the bolt fastener 14 is composed of bolts and nuts.

[0028] The storage rack 11 can slide freely outside the I-shaped plate 10 , and the bolt fasteners 14 can fix the storage rack 11 on the I-shaped plate 10 .

[0029] In this embodiment, two sets of anti-sway structures 8 are provided at the bottom of the mounting plate 1. The anti-sway structure 8 includes a base 33, two fixed plates 34, a plurality of movable rods 35, two clamping blocks 36 and two connecting plates 37. The base 33 is fixedly connected to the mounting plate 1, the fixed plate 34 is fixedly connected to the base 33, the movable rod 35 is through-connected to the fixed plate 34, the clamping block 36 and the connecting plate 37 are both fixedly connected to the movable rod 35, and a plurality of springs 38 are provided between the clamping block 36 and the fixed plate 34.

[0030] The rope 6, the anti-sway structure 8 and the grabbing structure 7 can limit the position of the I-shaped plate 10 to prevent the I-shaped plate 10 from shaking significantly during the lifting process, which affects the handling efficiency, and can further improve the safety of the lifting.

[0031] In this embodiment, the anti-sway structure 8 also includes two sets of thrust assemblies, which include two L-shaped plates 39, an electric push rod 40 and a push plate 41. The L-shaped plate 39 is fixedly connected to the connecting plate 37, the electric push rod 40 is arranged at the bottom of the mounting plate 1, and the push plate 41 is fixedly connected to one end of the electric push rod 40.

[0032] The thrust assembly cooperates with the anti-sway structure 8 to remove the second block 36 when needed, so as to release the restriction of the internal I-shaped plate 10 located at the base 33, so that the I-shaped plate 10 can move down to work.

[0033] In this embodiment, the spring three 38 is located at the periphery of the corresponding movable rod 35, and the positions of the push plate 41 and the L-shaped plate 39 are adaptively matched.

[0034] The push plate 41 moves under the action of the electric push rod 40 , exerting a thrust on the L-shaped plate 39 .

[0035] In this embodiment, a limiting structure 9 is provided at the bottom of the fixed plate 34 , and the limiting structure 9 includes a bottom plate 42 , an arc plate 43 and two screws 44 . The bottom plate 42 and the fixed plate 34 are fixedly connected, and the arc plate 43 is connected to the bottom plate 42 via two screws 44 .

[0036] The limiting structure 9 cooperates with the anti-sway structure 8 to guide and limit the I-shaped plate 10 during its upward movement, and can guide the I-shaped plate 10 to gradually fit into the base 33, thereby preventing the I-shaped plate 10 from deviating from the predetermined position of the base 33 due to shaking when moving upward.

[0037] In this embodiment, the I-shaped plate 10 and the base 33 are adaptively matched, and the two arc-shaped plates 43 on the same side form an "eight" shape.

[0038] The arc plate 43 guides the I-shaped plate 10 .

[0039] It should be noted that the present invention is a lifting device for large-span steel structures. Before use, the mounting plate 1 is connected to an existing lifting machine to achieve working conditions. The U-shaped steel plate is placed on a shelf not high from the ground, and the equipment is moved to the corresponding position of the U-shaped steel plate by a crane and then stopped. At this time, the U-shaped steel plate is below the cross plate 12 and between the two support plates 17 of the grabbing assembly. The two slide plates 13 are moved toward the middle of the cross plate 12 until the top of the support plate 17 contacts the bottom of the U-shaped steel plate and then stops. During the process, the slide plate 13 moves to apply pressure to the block 20. Since the top of the block 20 is inclined, the block 20 moves downward toward the inner side of the slot 18 under the action of pressure, and the spring 21 is compressed at the same time. When the slide plate 13 moves away from the range of the corresponding block 20, the spring 21 acts on the block 20 to rebound to the initial position, restricting the slide plate 13 that has just slid over to prevent it from retreating. The motor 4 is started to make the winding roller 5 act on the rope 6 to wind up the rope. The U-shaped steel plate 12 is moved by the I-shaped plate 10, and the I-shaped plate 10 moves with the storage rack 11 synchronously. The storage rack 11 moves with one end of the connecting arm 15, so that the other end of the connecting arm 15 moves with the slide plate 13 toward the middle of the cross plate 12. At the same time, because the slide plate 13 keeps moving toward the cross plate 12, the anti-skid pad 27 will gradually move toward the side of the U-shaped steel plate under the action of the spring 29, and finally cling to the side of the U-shaped steel plate, which has a limiting effect on the side of the U-shaped steel plate. When the rope 6 is wound, the two slide plates 13 will always move toward the middle of the cross plate 12. At the same time, the block 1 20 has a back-slip blocking effect on the slide plate 13, so the U-shaped steel plate located on the top of the support plate 17 will not be separated from the control range of the grabbing assembly, thereby improving the safety of lifting, and there is no need to worry about the U-shaped steel plate falling due to shaking when it moves up. The I-shaped plate 10 gradually approaches the range of the arc plate 43 under the action of the rope 6 and the motor 4. Since the two arc plates 43 on the same side form an "eight" shape, they can play a good role in limiting and guiding the I-shaped plate 10, so as to prevent the I-shaped plate 10 from being unable to get stuck on the inner side of the base 33 due to the shaking of the rope 6 and the deviation from the original track. When the I-shaped plate 10 contacts the second clamping block 36, since one end of the second clamping block 36 is also inclined like the first clamping block 20, the second clamping block 36 is compressed by the third sliding spring 38 toward the inner side of the fixed plate 34 under the action of pressure. When the top of the I-shaped plate 10 contacts the inner top surface of the base 33, the motor 4 stops working. The third spring 38 loses the pressure limit and acts on the second clamping block 36 to rebound to the initial position. At this time, the bottom of the I-shaped plate 10 contacts the top of the second clamping block 36 and is supported by the second clamping block 36. The position of the I-shaped plate 10 is limited to prevent the I-shaped plate 10 from shaking during the lifting process. The equipment can be moved and transported by a crane. When the U-shaped steel plate needs to be lowered, the electric push rod 40 is started to act on the push plate 41 to move, and the push plate 41 pushes the L-shaped plate 39 to move, and the L-shaped plate 39 moves synchronously with the connecting plate 37, the movable rod 35 and the second clamping block 36, so that the bottom restriction of the I-shaped plate 10 is released, and the motor 4 is started to make the rope 6 perform the wire release work, and the I-shaped plate 10 moves down until the U-shaped steel plate is placed on the predetermined shelf and then stops. At the same time, the electric push rod 40 makes the push plate 41 return to the initial position, and the second clamping block 36 also rebounds to the initial position under the action of the second spring 29. The U-shaped steel plate is placed, and then the threaded rod 23 is rotated to make the pressing plate 24 press the block 20 downward until the block 20 does not affect the sliding of the slide plate 13 and stops. At this time, the slide plate 13 is pulled toward the two ends of the cross plate 12. The setting of the pulley 32 can make the support plate 17 move away from the bottom of the U-shaped steel plate more quickly, until the support plate 17 stops after leaving the bottom of the U-shaped steel plate, and then the pressing plate 24 is moved back to the initial position by the threaded rod 23. The spring 21 loses its pressure and acts on the block 20 to rebound to the initial position. At this time, the placement of the U-shaped steel plate can be completed; In addition, the lifting equipment is not limited to lifting U-shaped steel plates, but can also lift flat steel plates, I-shaped steel plates, etc. At the same time, the number of grabbing components can be increased as needed to grab the steel structures that need to be lifted.

Claims

1. A lifting device for a large-span steel structure, comprising a mounting plate (1), three vertical plates (2) are fixedly arranged on the top of the mounting plate (1), a linkage rod (3) is rotatably connected to the three vertical plates (2), one end of the linkage rod (3) passes through one of the vertical plates (2) and is fixedly connected to the output shaft of a motor (4), two winding rollers (5) are fixedly arranged on the outside of the linkage rod (3), and a rope (6) is arranged on the outside of the winding roller (5), characterized in that: A grabbing structure (7) is provided between one ends of the two ropes (6); The grabbing structure (7) comprises an I-shaped plate (10) and a plurality of grabbing components. The I-shaped plate (10) is fixedly connected to one end of a rope (6). The I-shaped plate (10) is provided with a plurality of grabbing components on the outside of the I-shaped plate (10). The grabbing components comprise a storage rack (11) and a cross plate (12). The storage rack (11) is connected to the I-shaped plate (10) via a bolt fastener (14). Two slide plates (13) are slidably provided on the outside of the cross plate (12). The bottom of the storage rack (11) is rotatably connected to two connecting arms (15). One end of the connecting arm (15) is rotatably connected to a fixing frame (16). The fixing frame (16) is fixedly connected to the slide plate (13). The bottom of the slide plate (13) is fixedly connected to a supporting plate (17).

2. The lifting equipment for large-span steel structure according to claim 1, characterized in that: A plurality of slots (18) are provided on the top of the transverse plate (12), and a clamping block (20) is slidably provided inside the slot (18), and two springs (21) are provided between the bottom of the clamping block (20) and the inner bottom surface of the slot (18). A storage slot (19) is provided inside the transverse plate (12). The grab assembly further comprises a control assembly, and the control assembly comprises a second fixing frame (22), the second fixing frame (22) and the transverse plate (12) are fixedly connected, the second fixing frame (22) is connected to a threaded rod (23) by a thread, and one end of the threaded rod (23) is rotatably connected to a pressing plate (24), the pressing plate (24) and the storage slot (19) and the clamping block (20) are adaptively matched, and the storage slot (19) and the pressing plate (24) are both in an H shape.

3. The lifting equipment for large-span steel structure according to claim 1, characterized in that: The grabbing assembly further comprises two sets of lateral limiting assemblies, the lateral limiting assemblies comprising a guide rod (25) and a U-shaped plate (28), the guide rod (25) and the slide plate (13) being connected through each other, one end of the guide rod (25) being fixedly connected to a baffle plate (26), one side of the baffle plate (26) being fixedly provided with an anti-slip pad (27), the U-shaped plate (28) and the slide plate (13) being fixedly connected, and a second spring (29) being provided between the guide rod (25) and the U-shaped plate (28).

4. The lifting equipment for large-span steel structure according to claim 1, characterized in that: A plurality of storage holes (30) are provided on the top of the support plate (17), and two fixing rods (31) are rotatably connected to the support plate (17). Three pulleys (32) are fixedly provided on the outside of the fixing rods (31), and the pulleys (32) and the storage holes (30) are adaptively matched.

5. The lifting equipment for large-span steel structure according to claim 1, characterized in that: The storage rack (11) and the I-shaped plate (10) are adaptively matched, and the bolt fastener (14) consists of a bolt and a nut.

6. The lifting equipment for large-span steel structure according to claim 1, characterized in that: Two groups of anti-sway structures (8) are arranged at the bottom of the mounting plate (1). The anti-sway structures (8) include a base (33), two fixed plates (34), a plurality of movable rods (35), two second clamping blocks (36) and two connecting plates (37). The base (33) is fixedly connected to the mounting plate (1), the fixed plate (34) is fixedly connected to the base (33), the movable rod (35) is connected through the fixed plate (34), the second clamping block (36) and the connecting plate (37) are fixedly connected to the movable rod (35), and a plurality of third springs (38) are arranged between the second clamping block (36) and the fixed plate (34).

7. The lifting equipment for large-span steel structure according to claim 6, characterized in that: The anti-sway structure (8) further comprises two sets of thrust assemblies, the thrust assemblies comprising two L-shaped plates (39), an electric push rod (40) and a push plate (41), the L-shaped plates (39) and the connecting plate (37) are fixedly connected, the electric push rod (40) is arranged at the bottom of the mounting plate (1), and the push plate (41) and one end of the electric push rod (40) are fixedly connected.

8. The lifting equipment for large-span steel structure according to claim 7, characterized in that: The spring three (38) is located at the periphery of the corresponding movable rod (35), and the positions of the push plate (41) and the L-shaped plate (39) are adaptively matched.

9. The lifting equipment for large-span steel structure according to claim 6, characterized in that: A limiting structure (9) is provided at the bottom of the fixing plate (34), the limiting structure (9) comprising a bottom plate (42), an arc-shaped plate (43) and two screws (44), the bottom plate (42) and the fixing plate (34) are fixedly connected, and the arc-shaped plate (43) is connected to the bottom plate (42) via the two screws (44).

10. The lifting equipment for large-span steel structure according to claim 9, characterized in that: The I-shaped plate (10) and the base (33) are adaptively matched, and the two arc-shaped plates (43) on the same side form an "eight" shape.

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