Lifting device capable of preventing falling and used for mounting prefabricated laminated slab

Abstract

The invention discloses an anti-falling hoisting device for prefabricated laminated slab installation, and belongs to the technical field of prefabricated laminated slab hoisting installation, the anti-falling hoisting device comprises a main body connecting assembly, a hoisting butt joint structure and an emergency transmission structure, the hoisting butt joint structure is arranged below the main body connecting assembly, and the emergency transmission structure is arranged on the hoisting butt joint structure. According to the hoisting device, the hoisting butt joint structure and the emergency transmission structure are arranged, so that the device can hoist prefabricated laminated slabs of different sizes, an emergency protection structure can be triggered when a cable is broken in the hoisting process of the prefabricated laminated slabs, and the prefabricated laminated slabs are additionally supported; the prefabricated laminated slab is prevented from directly falling when the mooring rope is broken, so that the safety of the prefabricated laminated slab in the hoisting process is greatly improved, and the problem that the mooring rope is easy to break due to abrasion, aging or accidental uneven stress in the hoisting process of a traditional prefabricated laminated slab hoisting device in the market at present is effectively solved; and severe threats are caused to personnel and equipment on a construction site.

Description

Technical Field

[0001] The invention belongs to the technical field of hoisting and installing prefabricated composite panels, and specifically refers to a hoisting device for installing prefabricated composite panels which can prevent them from falling. Background Art

[0002] In the field of construction, prefabricated composite panels are an important building component, and their installation efficiency and safety have a vital impact on the progress and quality of the entire construction project.

[0003] Traditional prefabricated composite panel lifting devices mainly rely on simple hooks and cables for lifting operations. In this lifting method, the cables are prone to breakage due to wear, aging or accidental uneven force during the lifting process. Once the cables break, the prefabricated composite panels may fall directly, which will not only pose a serious threat to personnel and equipment at the construction site, but may also cause damage to the prefabricated composite panels, increasing construction costs and the risk of delays. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a lifting device for installing prefabricated composite panels that can prevent falling. By setting a lifting docking structure and an emergency transmission structure, not only can the device lift prefabricated composite panels of different sizes, but also when the cable breaks during the lifting of the prefabricated composite panels, the emergency protection structure can be triggered to provide additional support for the prefabricated composite panels, thereby preventing the prefabricated composite panels from falling directly when the cable breaks, greatly improving the safety of the prefabricated composite panels during lifting, and effectively solving the problem that the cables of traditional prefabricated composite panel lifting devices on the market are easily broken due to wear, aging or accidental uneven force during lifting, posing a serious threat to personnel and equipment at the construction site, and may also cause damage to the prefabricated composite panels, increasing construction costs and the risk of delays in the construction period.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a lifting device for installing prefabricated composite panels that can prevent falling, including a main connecting assembly, a lifting and docking structure and an emergency transmission structure. The lifting and docking structure is arranged below the main connecting assembly, and the emergency transmission structure is arranged on the lifting and docking structure. The lifting and docking structure includes a lifting connection assembly, a transmission assembly and a movable limiting assembly.

[0006] Furthermore, the lifting connection assembly includes a sliding block, a vertical rod, a lifting sleeve, a telescopic spring, a connecting plate, a driving rack, a cable, a docking block, an adjustable hook and a clamping block. The sliding block is slidably connected to the main body connection assembly, the vertical rod passes through and is fixedly connected to the sliding block, the lifting sleeve is slidably connected to the vertical rod, one end of the telescopic spring is fixedly connected to the vertical rod, the other end of the telescopic spring is fixedly connected to the lifting sleeve, the connecting plate is fixedly connected to the lifting sleeve, the driving rack is fixedly connected to the connecting plate, the cable is fixedly connected to the middle position of the bottom surface of the lifting sleeve, the docking block is fixedly connected to the end of the cable away from the lifting sleeve, the clamping block is rotatably connected to the docking block, and the adjustable hook is fixedly connected to the clamping block, so that the device can complete the docking with the prefabricated composite plate.

[0007] Furthermore, the transmission assembly includes a vertical plate, a fixed bracket, a rotating shaft, a driven gear and a driving bevel gear, the vertical plate is fixedly connected to the sliding block, a lifting slot is provided on the vertical plate, the fixed bracket is fixedly connected to the inner surface of the lifting slot, the rotating shaft passes through and is rotatably connected to the fixed bracket, the driven gear is fixedly connected to the rotating shaft, and the driving bevel gear is fixedly connected to one end of the rotating shaft away from the driven gear.

[0008] Furthermore, the movable limiting assembly includes a rotating rod, a limiting card plate, an auxiliary support rod, a torsion spring, a second fixed bracket and a third fixed bracket. The rotating rod is rotatably connected to the vertical plate, the limiting card plate is fixedly connected to the rotating rod, the limiting card plate is rotatably connected to the vertical plate, the auxiliary support rod is fixedly connected to one end of the rotating rod away from the vertical plate, one end of the torsion spring is fixedly connected to the vertical plate, the other end of the torsion spring is fixedly connected to the rotating rod, the second fixed bracket is fixedly connected to the vertical plate, and the third fixed bracket is fixedly connected to the vertical plate, so that the device can provide auxiliary support for the lifting connection assembly.

[0009] Furthermore, the emergency transmission structure includes a driven bevel gear, a support shaft 1, a support shaft 2, a driving pulley 1, a driving pulley 2, meshing teeth, a driven pulley, a transmission belt, a transmission shaft, a rotating column, a paddle plate, a positioning plate 1 and a positioning plate 2, the driven bevel gear is meshed and connected to the lifting docking structure, the support shaft 1 is fixedly connected to the driven bevel gear, the support shaft 2 is arranged on one side of the support shaft 1, the driving pulley 1 is fixedly connected to the support shaft 1, the driving pulley 2 is fixedly connected to the support shaft 2, the meshing teeth are fixedly connected to the driving pulley 1, and the meshing teeth are fixed The driving pulley 2 is connected, and the driven pulley is arranged on one side of the driving pulley 1 and the driving pulley 2. A transmission belt is connected between the driving pulley 1 and the driven pulley, and a transmission belt is also connected between the driving pulley 2 and the driven pulley. The transmission shaft passes through and is fixedly connected to the driven pulley. The rotating column is fixedly connected to the transmission shaft, and the shift plate is fixedly connected to one end of the rotating column away from the driven pulley. The positioning plate 1 is fixedly connected to the lifting docking structure, and the positioning plate 2 is fixedly connected to the lifting docking structure. When the cable breaks, the emergency transmission structure can be triggered in time for protection.

[0010] Furthermore, the main connecting assembly includes a connecting beam, a sliding ring, a connecting bracket, a fixed vertical plate, a driving motor, a bidirectional screw, a mounting plate and a connecting rod. The connecting beam is provided with a transverse sliding groove, a through groove is provided above the transverse sliding groove, the sliding ring is slidably connected in the through groove, the connecting bracket is fixedly connected to the middle position of the upper surface of the sliding ring, the fixed vertical plate is fixedly connected to the upper surface of the connecting beam, the driving motor is fixedly connected to the connecting beam, the bidirectional screw is fixedly connected to the output end of the driving motor, the mounting plate is fixedly connected to the connecting beam, and the connecting rod passes through and is detachably connected to the mounting plate.

[0011] Furthermore, the sliding block is slidably connected in the transverse sliding groove, the lifting sliding groove is arranged on one side of the vertical rod, the driving rack is arranged inside the lifting sliding groove, and the driven gear is meshedly connected to the driving rack.

[0012] Furthermore, the driven bevel gear is meshedly connected to the driving bevel gear, the driving pulley 1 and the driving pulley 2 are in the same horizontal plane, the meshing teeth arranged on the driving pulley 1 are meshedly connected to the meshing teeth arranged on the driving pulley 2, and the driven pulleys are symmetrically arranged.

[0013] Furthermore, the first positioning plate is fixedly connected to the vertical plate, the second positioning plate is fixedly connected to the vertical plate, the rotating column passes through and is rotationally connected to the first positioning plate, and the transmission shaft passes through and is rotationally connected to the second positioning plate.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows:

[0015] In order to solve the problem that the cables of the conventional prefabricated composite panel lifting devices currently on the market are easily broken due to wear, aging or accidental uneven force during the lifting process, which poses a serious threat to the personnel and equipment on the construction site, and may also cause damage to the prefabricated composite panels, increasing the construction cost and the risk of delay in the construction period, the present invention provides a lifting docking structure and an emergency transmission structure, which not only enables the device to lift prefabricated composite panels of different sizes, but also triggers the emergency protection structure when the cable breaks during the lifting process of the prefabricated composite panels, and provides additional support for the prefabricated composite panels, thereby preventing the prefabricated composite panels from falling directly when the cable breaks, thereby greatly improving the safety of the prefabricated composite panels during the lifting process;

[0016] Among them, the driven bevel gear, driving pulley and transmission belt in the emergency transmission structure can quickly start the emergency transmission when the cable breaks, and respond quickly through mechanical transmission to ensure that the auxiliary support rod is in place in time to complete the support and protection of the prefabricated composite plate. In addition, this emergency response mechanism does not require external power supply or complex control, and has high reliability and fast response speed.

[0017] In addition, the bidirectional screw and drive motor structure in the main connection assembly can quickly adjust the position of the adjustable hook according to the position of the lifting ring on the prefabricated composite board, so that it can be accurately docked with the lifting ring. This flexible adjustment function not only improves the lifting efficiency, but also adapts to the lifting needs of prefabricated composite boards of different sizes and shapes, enhancing the versatility and applicability of the device;

[0018] The lifting sleeve, telescopic spring, drive rack and other structures in the lifting connection assembly can effectively buffer the deadweight of the prefabricated composite panel and maintain smooth lifting movement during the lifting process. The synergistic effect of the transmission assembly and the movable limit assembly ensures precise control and stable support during the lifting process, reduces the shaking and tilting of the prefabricated composite panel during the lifting process, and improves the lifting accuracy and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a lifting device for installing a prefabricated composite panel that can prevent falling proposed by the present invention Figure 1 ;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a lifting device for installing a prefabricated composite panel that can prevent falling proposed by the present invention Figure 2 ;

[0021] Figure 3 A schematic diagram of the explosion structure of a hoisting device for installing a prefabricated composite panel that can prevent falling, proposed by the present invention;

[0022] Figure 4 It is a partial structural schematic diagram of the main connecting component;

[0023] Figure 5 A schematic diagram of a partial explosion structure for lifting the docking structure;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure at A in the middle;

[0025] Figure 7 Illustration of partial explosion for lifting docking structure Figure 1 ;

[0026] Figure 8 Illustration of partial explosion for lifting docking structure Figure 2 ;

[0027] Fig. 9 It is a schematic diagram of the connection structure between the lifting docking structure and the emergency transmission structure;

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the emergency transmission structure.

[0029] Among them, 1. Main body connection assembly; 101. Connecting beam; 102. Horizontal slide; 103. Through groove; 104. Sliding ring; 105. Connecting bracket; 106. Fixed vertical plate; 107. Driving motor; 108. Bidirectional screw; 109. Mounting plate; 110. Connecting rod; 2. Lifting docking structure; 201. Sliding block; 202. Vertical rod; 203. Lifting sleeve; 204. Telescopic spring; 205. Connecting plate; 206. Driving rack; 207. Cable; 208. Docking block; 209. Adjustable hook; 210. Card block; 211. Vertical plate; 212. Lifting slide; 213. Fixed Bracket 1; 214, rotating shaft; 215, driven gear; 216, driving bevel gear; 217, rotating rod; 218, limiting clamping plate; 219, auxiliary support rod; 220, torsion spring; 221, fixed bracket 2; 222, fixed bracket 3; 3, emergency transmission structure; 301, driven bevel gear; 302, supporting shaft 1; 303, supporting shaft 2; 304, driving pulley 1; 305, driving pulley 2; 306, meshing clamping teeth; 307, driven pulley; 308, transmission belt; 309, transmission shaft; 310, rotating column; 311, dial plate; 312, positioning plate 1; 313, positioning plate 2.

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] like Figure 1-Figure 10 As shown, the present invention proposes a lifting device for installing prefabricated composite panels that can prevent falling, including a main connecting component 1, a lifting and docking structure 2 and an emergency transmission structure 3. The lifting and docking structure 2 is arranged below the main connecting component 1, and the emergency transmission structure 3 is arranged on the lifting and docking structure 2. The lifting and docking structure 2 includes a lifting connection component, a transmission component and a movable limiting component.

[0034] The lifting connection assembly includes a sliding block 201, a vertical rod 202, a lifting sleeve 203, a telescopic spring 204, a connecting plate 205, a driving rack 206, a cable 207, a docking block 208, an adjustable hook 209 and a clamping block 210. The sliding block 201 is slidably connected to the main connecting assembly 1, the vertical rod 202 passes through and is fixedly connected to the sliding block 201, the lifting sleeve 203 is slidably connected to the vertical rod 202, one end of the telescopic spring 204 is fixedly connected to the vertical rod 202, and the other end of the telescopic spring 204 is fixedly connected to the lifting sleeve 203, the connecting plate 205 is fixedly connected to the lifting sleeve 203, the driving rack 206 is fixedly connected to the connecting plate 205, the cable 207 is fixedly connected to the middle position of the bottom surface of the lifting sleeve 203, the docking block 208 is fixedly connected to one end of the cable 207 away from the lifting sleeve 203, the clamping block 210 is rotatably connected to the docking block 208, and the adjustable hook 209 is fixedly connected to the clamping block 210.

[0035] The transmission assembly includes a vertical plate 211, a fixed bracket 213, a rotating shaft 214, a driven gear 215 and a driving bevel gear 216. The vertical plate 211 is fixedly connected to the sliding block 201. A lifting slot 212 is provided on the vertical plate 211. The fixed bracket 213 is fixedly connected to the inner surface of the lifting slot 212. The rotating shaft 214 passes through and is rotatably connected to the fixed bracket 213. The driven gear 215 is fixedly connected to the rotating shaft 214. The driving bevel gear 216 is fixedly connected to one end of the rotating shaft 214 away from the driven gear 215.

[0036] The movable limiting assembly includes a rotating rod 217, a limiting clamping plate 218, an auxiliary support rod 219, a torsion spring 220, a fixed bracket 221 and a fixed bracket 3 222. The rotating rod 217 is rotatably connected to the vertical plate 211, the limiting clamping plate 218 is fixedly connected to the rotating rod 217, the limiting clamping plate 218 is rotatably connected to the vertical plate 211, the auxiliary support rod 219 is fixedly connected to one end of the rotating rod 217 away from the vertical plate 211, one end of the torsion spring 220 is fixedly connected to the vertical plate 211, and the other end of the torsion spring 220 is fixedly connected to the rotating rod 217, the fixed bracket 221 is fixedly connected to the vertical plate 211, and the fixed bracket 3 222 is fixedly connected to the vertical plate 211.

[0037] The emergency transmission structure 3 includes a driven bevel gear 301, a support shaft 1 302, a support shaft 2 303, a driving pulley 1 304, a driving pulley 2 305, an engaging tooth 306, a driven pulley 307, a transmission belt 308, a transmission shaft 309, a rotating column 310, a paddle plate 311, a positioning plate 1 312 and a positioning plate 2 313. The driven bevel gear 301 is meshedly connected to the lifting docking structure 2, the support shaft 1 302 is fixedly connected to the driven bevel gear 301, the support shaft 2 303 is arranged on one side of the support shaft 1 302, the driving pulley 1 304 is fixedly connected to the support shaft 1 302, the driving pulley 2 305 is fixedly connected to the support shaft 2 303, the engaging tooth 306 is fixedly connected to the driving pulley 307, the transmission belt 308, the transmission shaft 309, the rotating column 310, the paddle plate 311, the positioning plate 1 312 and the positioning plate 2 313. The driven pulley 1 304 and the meshing teeth 306 are fixedly connected to the driving pulley 2 305. The driven pulley 307 is arranged on one side of the driving pulley 1 304 and the driving pulley 2 305. A transmission belt 308 is connected between the driving pulley 1 304 and the driven pulley 307. A transmission belt 308 is also connected between the driving pulley 2 305 and the driven pulley 307. The transmission shaft 309 passes through and is fixedly connected to the driven pulley 307. The rotating column 310 is fixedly connected to the transmission shaft 309. The shifting plate 311 is fixedly connected to one end of the rotating column 310 away from the driven pulley 307. The positioning plate 1 312 is fixedly connected to the lifting and docking structure 2. The positioning plate 2 313 is fixedly connected to the lifting and docking structure 2.

[0038] The main connecting component 1 includes a connecting beam 101, a sliding ring 104, a connecting bracket 105, a fixed vertical plate 106, a driving motor 107, a bidirectional screw 108, a mounting plate 109 and a connecting rod 110. A transverse sliding groove 102 is provided on the connecting beam 101, a through groove 103 is provided above the transverse sliding groove 102, the sliding ring 104 is slidably connected in the through groove 103, the connecting bracket 105 is fixedly connected to the middle position of the upper surface of the sliding ring 104, the fixed vertical plate 106 is fixedly connected to the upper surface of the connecting beam 101, the driving motor 107 is fixedly connected to the connecting beam 101, the bidirectional screw 108 is fixedly connected to the output end of the driving motor 107, the mounting plate 109 is fixedly connected to the connecting beam 101, the connecting rod 110 passes through and is detachably connected to the mounting plate 109, and the connecting bracket 105 is threadedly connected to the bidirectional screw 108.

[0039] The sliding block 201 is slidably connected in the horizontal slide groove 102, the lifting slide groove 212 is arranged on one side of the vertical rod 202, the driving rack 206 is arranged inside the lifting slide groove 212, the driven gear 215 is meshed and connected to the driving rack 206, and the auxiliary support rod 219 is unfolded. The distance between the bottom surface of the connecting vertical plate 211 is 3cm.

[0040] The driven bevel gear 301 is meshedly connected to the driving bevel gear 216, the driving pulley 1 304 and the driving pulley 2 305 are in the same horizontal plane, the meshing teeth 306 provided on the driving pulley 1 304 are meshedly connected to the meshing teeth 306 provided on the driving pulley 2 305, and the driven pulley 307 is symmetrically arranged.

[0041] The first positioning plate 312 is fixedly connected to the vertical plate 211 , the second positioning plate 313 is fixedly connected to the vertical plate 211 , the rotating column 310 passes through and is rotatably connected to the first positioning plate 312 , and the transmission shaft 309 passes through and is rotatably connected to the second positioning plate 313 .

[0042] When in use, the required parts of the device are assembled, the connecting rod 110 set on the mounting plate 109 is removed, and the mounting plate 109 is connected to the crane. After the connection is completed, the connecting rod 110 is reset, and the crane is controlled to move the connecting beam 101 to the top of the prefabricated composite plate. The position of the adjustable hook 209 is adjusted accordingly according to the position of the lifting ring set on the prefabricated composite plate for convenient lifting, and the drive motor 107 is started. After the drive motor 107 is started, it drives the bidirectional screw 108 to rotate. The threaded structure on the outer surface of the bidirectional screw 108 is symmetrically arranged. As the bidirectional screw 108 rotates, the bidirectional screw 108 drives the sliding ring 104 to perform synchronous relative displacement along the through groove 103 through the connecting bracket 105 until the adjustable hook 209 is connected to the preset lifting ring on the prefabricated composite plate, and then the crane is started to lift it and send it to the specified position.

[0043] During the lifting process of the prefabricated composite board, the lifting sleeve 203 will move downward under the action of the deadweight of the prefabricated composite board. During the downward displacement of the lifting sleeve 203, the driven gear 215 will be driven to rotate through the driving rack 206. The driven gear 215 will drive the driving bevel gear 216 to rotate through the rotating shaft 214. The driving bevel gear 216 will drive the driven bevel gear 301 to rotate. The driven bevel gear 301 will drive the driving pulley 304 to rotate through the supporting shaft 302. 04 drives the active pulley 2 305 to rotate synchronously in the opposite direction through the meshing teeth 306, the active pulley 1 304 and the active pulley 2 305 drive the driven pulley 307 to rotate through the transmission belt 308, the driven pulley 307 drives the rotating column 310 to rotate, and the rotating column 310 drives the paddle plate 311 to rotate. At this time, the auxiliary support rod 219 at the bottom of the vertical plate 211 opens under the joint action of the rotating rod 217 and the torsion spring 220, so that the auxiliary support rod 219 is separated from the docking block 208.

[0044] When the lifting sleeve 203 is reset, the driven gear 215 is driven by the driving rack 206 to rotate in the opposite direction until the lifting sleeve 203 is reset to the initial position. The driven gear 215 rotates in the opposite direction to drive the driven bevel gear 301 to rotate in the opposite direction. The driven bevel gear 301 drives the driving pulley 1 304 and the driving pulley 2 305 to rotate in the opposite direction. The rotating column 310 rotates in the opposite direction and pushes the auxiliary support rod 219 through the dial plate 311, so that the auxiliary support rod 219 overcomes the supporting force provided by the torsion spring 220 and rotates. The auxiliary support rod 219 rotates to the bottom of the docking block 208 to support the docking block 208 to prevent the prefabricated composite board from falling directly when the cable 207 breaks. The above is the overall workflow of the present invention. You can repeat this step next time you use it. The actual operation process is very simple and easy.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0047] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A hoisting device for installing a prefabricated composite panel capable of preventing it from falling, characterized in that: The invention comprises a main connecting assembly (1), a lifting docking structure (2) and an emergency transmission structure (3), wherein the lifting docking structure (2) is arranged below the main connecting assembly (1), and the emergency transmission structure (3) is arranged on the lifting docking structure (2), wherein the lifting docking structure (2) comprises a lifting connecting assembly, a transmission assembly and a movable limiting assembly, wherein the emergency transmission structure (3) comprises a driving mechanism, a transmission belt (308) and an emergency limiting structure, wherein the driving mechanism comprises a first driving pulley (304) and a second driving pulley (305), and wherein the emergency limiting structure comprises a driven pulley ( 307), a transmission shaft (309), a rotating column (310) and a shift plate (311); a transmission belt (308) is connected between the first driving pulley (304) and the driven pulley (307); a transmission belt (308) is also connected between the second driving pulley (305) and the driven pulley (307); the transmission shaft (309) passes through and is fixedly connected to the driven pulley (307); the rotating column (310) is fixedly connected to the transmission shaft (309); and the shift plate (311) is fixedly connected to one end of the rotating column (310) away from the driven pulley (307).

2. A hoisting device for installing a prefabricated composite panel capable of preventing falling according to claim 1, characterized in that: The hoisting connection assembly comprises a sliding block (201), a vertical rod (202), a lifting sleeve (203), a telescopic spring (204), a connecting plate (205), a driving rack (206), a cable (207), a docking block (208), an adjustable hook (209) and a clamping block (210), wherein the sliding block (201) is slidably connected to the main connecting assembly (1), the vertical rod (202) passes through and is fixedly connected to the sliding block (201), the lifting sleeve (203) is slidably connected to the vertical rod (202), and one end of the telescopic spring (204) is fixedly connected to the vertical rod (202). 02), the other end of the telescopic spring (204) is fixedly connected to the lifting sleeve (203), the connecting plate (205) is fixedly connected to the lifting sleeve (203), the driving rack (206) is fixedly connected to the connecting plate (205), the cable (207) is fixedly connected to the middle position of the bottom surface of the lifting sleeve (203), the docking block (208) is fixedly connected to one end of the cable (207) away from the lifting sleeve (203), the clamping block (210) is rotatably connected to the docking block (208), and the adjustable hook (209) is fixedly connected to the clamping block (210).

3. A hoisting device for installing a prefabricated composite panel capable of preventing falling according to claim 2, characterized in that: The transmission assembly comprises a vertical plate (211), a fixed bracket (213), a rotating shaft (214), a driven gear (215) and a driving bevel gear (216); the vertical plate (211) is fixedly connected to the sliding block (201); a lifting slot (212) is provided on the vertical plate (211); the fixed bracket (213) is fixedly connected to the inner surface of the lifting slot (212); the rotating shaft (214) passes through and is rotatably connected to the fixed bracket (213); the driven gear (215) is fixedly connected to the rotating shaft (214); and the driving bevel gear (216) is fixedly connected to one end of the rotating shaft (214) away from the driven gear (215).

4. A hoisting device for installing a prefabricated composite panel capable of preventing falling according to claim 3, characterized in that: The movable limiting assembly comprises a rotating rod (217), a limiting clamping plate (218), an auxiliary support rod (219), a torsion spring (220), a second fixed bracket (221), and a third fixed bracket (222); the rotating rod (217) is rotatably connected to the vertical plate (211); the limiting clamping plate (218) is fixedly connected to the rotating rod (217); the limiting clamping plate (218) is rotatably connected to the vertical plate (211); the auxiliary support rod (219) is fixedly connected to one end of the rotating rod (217) away from the vertical plate (211); one end of the torsion spring (220) is fixedly connected to the vertical plate (211); the other end of the torsion spring (220) is fixedly connected to the rotating rod (217); the second fixed bracket (221) is fixedly connected to the vertical plate (211); and the third fixed bracket (222) is fixedly connected to the vertical plate (211).

5. The hanging device for installing a prefabricated composite panel capable of preventing falling according to claim 4, characterized in that: The driving mechanism comprises a driven bevel gear (301), a support shaft 1 (302), a support shaft 2 (303), and an engaging tooth (306); the driven bevel gear (301) is engaged and connected to the lifting docking structure (2); the support shaft 1 (302) is fixedly connected to the driven bevel gear (301); the support shaft 2 (303) is arranged on one side of the support shaft 1 (302); the driving pulley 1 (304) is fixedly connected to the support shaft 1 (302); the driving pulley 2 (305) is fixedly connected to the support shaft 2 (303); the engaging tooth (306) is fixedly connected to the driving pulley 1 (304); and the engaging tooth (306) is fixedly connected to the driving pulley 2 (305).

6. A hoisting device for installing a prefabricated composite panel capable of preventing falling according to claim 5, characterized in that: The emergency limiting structure further comprises a positioning plate 1 (312) and a positioning plate 2 (313); the driven pulley (307) is arranged on one side of the driving pulley 1 (304) and the driving pulley 2 (305); the positioning plate 1 (312) is fixedly connected to the lifting docking structure (2); and the positioning plate 2 (313) is fixedly connected to the lifting docking structure (2).

7. A hoisting device for installing a prefabricated composite panel capable of preventing falling according to claim 6, characterized in that: The main body connection assembly (1) comprises a connecting crossbeam (101), a sliding ring (104), a connecting bracket (105), a fixed vertical plate (106), a driving motor (107), a bidirectional screw (108), a mounting plate (109) and a connecting rod (110); a transverse sliding groove (102) is provided on the connecting crossbeam (101); a through groove (103) is provided above the transverse sliding groove (102); the sliding ring (104) is slidably connected in the through groove (103); The connecting bracket (105) is fixedly connected to the middle position of the upper surface of the sliding ring (104), the fixed vertical plate (106) is fixedly connected to the upper surface of the connecting beam (101), the driving motor (107) is fixedly connected to the connecting beam (101), the bidirectional screw (108) is fixedly connected to the output end of the driving motor (107), the mounting plate (109) is fixedly connected to the connecting beam (101), and the connecting rod (110) passes through and is detachably connected to the mounting plate (109).

8. The hanging device for installing prefabricated composite panels capable of preventing falling according to claim 7, characterized in that: The sliding block (201) is slidably connected in the transverse sliding groove (102), the lifting sliding groove (212) is arranged on one side of the vertical rod (202), the driving rack (206) is arranged inside the lifting sliding groove (212), and the driven gear (215) is meshedly connected to the driving rack (206).

9. A hoisting device for installing a prefabricated composite panel capable of preventing falling according to claim 8, characterized in that: The driven bevel gear (301) is meshedly connected to the driving bevel gear (216), the driving pulley 1 (304) and the driving pulley 2 (305) are located in the same horizontal plane, the meshing teeth (306) provided on the driving pulley 1 (304) are meshedly connected to the meshing teeth (306) provided on the driving pulley 2 (305), and the driven pulleys (307) are symmetrically arranged.

10. A hoisting device for installing a prefabricated composite panel capable of preventing falling according to claim 9, characterized in that: The first positioning plate (312) is fixedly connected to the vertical plate (211), the second positioning plate (313) is fixedly connected to the vertical plate (211), the rotating column (310) passes through and is rotationally connected to the first positioning plate (312), and the transmission shaft (309) passes through and is rotationally connected to the second positioning plate (313).

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