A hoisting auxiliary hanger for precast composite slabs

Abstract

The present invention relates to the technical field of hoisting machinery, and discloses a hoisting auxiliary hanger for precast composite slabs, which includes a first-level distribution beam. A second-level distribution beam is arranged on the top of the first-level distribution beam. Two buffer mechanisms are provided on the front and rear sides of the tops of the first-level distribution beam and the second-level distribution beam. A locking ring is slidably connected to the top of the buffer mechanism. The locking ring is connected to the second-level distribution beam through a suspension cable. A plurality of counterweight mechanisms evenly distributed in a horizontal straight line are provided inside the front and rear sides of the second-level distribution beam. The buffer mechanism on the top of the second-level distribution beam is connected to an adapter block through the suspension cable, and a hook is hoisted on the top of the adapter block. Two positioning mechanisms are slidably connected to the front and rear sides of the first-level distribution beam, and a fixing mechanism is arranged at the bottom of the positioning mechanism. Through the mutual cooperation of the fixing mechanism and the assembly component, the problems of inaccurate positioning and easy loosening of the traditional clamping device are solved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting machinery, in particular to an auxiliary hanger for hoisting a prefabricated composite plate. Background Art

[0002] Prefabricated composite panels are a type of building component that is prefabricated in a factory and assembled on site. They are usually made of a combination of concrete layers and steel trusses. They have the advantages of being lightweight, fast to construct, and of controlled quality. They are widely used in building structures such as floor panels and wall panels. Their hoisting is a key link in construction. It is necessary to ensure that the panels remain stable during transportation and installation to avoid problems such as cracking and deformation caused by uneven force or impact.

[0003] Traditionally, prefabricated composite panels are hoisted by direct tying with steel wire ropes or fixing with simple clamps, and relying on cranes for direct lifting. Such methods usually lack targeted design. For example, using rigid hooks to directly hook the edge of the plate can easily cause damage due to local stress concentration; or using manually adjusted fixing devices that cannot dynamically adapt to the changes in the center of gravity of plates of different sizes. In addition, the traditional hoisting process lacks a buffer mechanism, and the rigid connection between the sling and the plate is prone to transmit vibration and impact, causing cracking of the plate edge or loosening of the connection structure. Especially when working in high-rise or narrow spaces, the problems of insufficient positioning accuracy and low adjustment efficiency are more prominent.

[0004] In the prior art, some lifting devices have a relatively simple fixed structure and uneven clamping force distribution, which makes it difficult to achieve fast and accurate positioning, and the clamping force may fail due to vibration. In addition, some lifting devices have insufficient impact absorption capacity during the lifting process, and rigid connections may easily amplify the vibration effect and increase the risk of plate damage, resulting in low construction efficiency and prominent safety hazards.

[0005] Therefore, a prefabricated composite panel hoisting auxiliary hanger is proposed to solve the deficiencies in the prior art. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides an auxiliary hanger for lifting prefabricated composite panels, which solves the problems of unstable clamping causing panel deviation or damage during the traditional lifting process of prefabricated composite panels, the risk of tilting caused by imbalance of the center of gravity, and edge cracking caused by rigid connection amplifying the impact load.

[0007] To achieve the above object, the present invention is realized through the following technical solutions: A prefabricated laminated slab hoisting auxiliary hanger, including a primary distribution beam, a secondary distribution beam is arranged on the top of the primary distribution beam, two buffer mechanisms are arranged on the front and rear sides of the tops of the primary distribution beam and the secondary distribution beam, a locking ring is slidably connected to the top of the buffer mechanism, the locking ring is connected to the secondary distribution beam through a sling, a plurality of weight mechanisms evenly distributed in a horizontal straight line are arranged inside the front and rear sides of the secondary distribution beam, the buffer mechanism on the top of the secondary distribution beam is connected to an adapter block through the sling, a hook is hoisted on the top of the adapter block, two positioning mechanisms are slidably connected to the front and rear sides of the primary distribution beam, and a fixing mechanism is arranged at the bottom of the positioning mechanism;

[0008] The fixing mechanism includes a U-shaped plate, the U-shaped plate is arranged on the side of the positioning mechanism away from the primary distribution beam, guide rods are symmetrically and slidably connected to the bottoms of the U-shaped plates, a cross handle is fixedly arranged on the bottom surfaces of the guide rods together, compression springs are sleeved on the surfaces of the guide rods, auxiliary abutting rods are symmetrically arranged on the top surfaces of the cross handle, clamping plates are fixedly connected to the top surfaces of the guide rods together, wedge blocks are fixedly connected to the top surfaces of the clamping plates and the inner wall surfaces of the U-shaped plates, auxiliary gaskets are fixedly connected to the top surfaces of the auxiliary abutting rods, and two assembly components are arranged on the side of the U-shaped plate close to the positioning mechanism.

[0009] Preferably, the positioning mechanism includes a slider, the slider is slidably connected to the front side of the primary distribution beam, a second screw is threadedly connected inside the slider, a first rotating ring is fixed at one end of the second screw away from the primary distribution beam, rotating rods are fixed on the upper and lower sides of the first rotating ring, and an insertion component is arranged inside the second screw.

[0010] Preferably, the buffer mechanism includes a protective shell, the protective shell is fixed on the front top of the primary distribution beam, a movable column slides inside the protective shell, movable plates are fixed on the front and rear sides of one end of the movable column close to the primary distribution beam, a damping rod is fixed on the side of the movable plate away from the primary distribution beam, concave blocks are fixed on the left and right sides of the movable column, a transmission rod rotates inside the concave block, a moving block rotates at one end of the transmission rod away from the concave block, a support rod slides inside the moving block, and a spring is fixed on the side of the moving block away from the movable column.

[0011] Preferably, the counterweight mechanism includes a counterweight block which slides inside the front side of the secondary distribution beam. A second rotating ring is threadedly connected to the bottom of the front side of the secondary distribution beam. One end of the second rotating ring close to the counterweight block rotates a third screw rod. Both the left and right sides of the third screw rod rotate a rotating rod. One end of the rotating rod away from the third screw rod rotates a connecting block. One end of the connecting block close to the counterweight block is fixed with a sliding plate.

[0012] Preferably, the assembly component includes an assembly block which is fixed to the top of the U-shaped plate. A mating block is fixed inside the slider. An insertion rod slides through the middle of the assembly block and the mating block. One end of the insertion rod is fixed with a fixing plate. Fixing pins are provided on both the upper and lower sides of the fixing plate.

[0013] Preferably, the plugging component includes a positioning rod which is arranged inside the second screw rod. One end of the positioning rod away from the primary distribution beam is fixed with a third rotating ring.

[0014] Preferably, one end of the damping rod away from the movable plate is fixed to the inner top side of the protective shell. The movable column is fixed to the bottom of the locking ring.

[0015] Preferably, two sliding grooves are formed inside the front side of the secondary distribution beam. The outer periphery of the sliding plate is slidably connected inside the sliding grooves.

[0016] Preferably, the compression spring is fixedly connected between the bottom surface of the clamping plate and the inner wall surface of the U-shaped plate. The auxiliary abutting rod has the same length as the guiding rod.

[0017] Preferably, the spring is sleeved on the outer periphery of the support rod. One end of the support rod away from the moving block is fixed inside the protective shell.

[0018] The present invention provides a precast composite slab hoisting auxiliary hanger. It has the following beneficial effects:

[0019] 1. Through the mutual cooperation of the fixing mechanism and the assembly component, the present invention uses the compression spring to automatically drive the guiding rod to push the wedge block to clamp the edge of the composite slab, and after the insertion rod penetrates through the assembly block and the mating block, it is locked by the fixing pin, solving the problems of inaccurate positioning and easy loosening of the traditional clamping device, realizing the rapid rigid fixing and anti-loosening of the composite slab, and significantly improving the clamping stability.

[0020] 2. Through the mutual cooperation of the positioning mechanism and the counterweight mechanism, the present invention uses the rotating rod to drive the slider to slide horizontally for positioning, combines the positioning rod inserted into the primary distribution beam to lock the position, and at the same time drives the sliding plate to move along the sliding groove by the second rotating ring to fix the counterweight block, solving the problems of center of gravity deviation and positioning error during the hoisting process, realizing the precise positioning of the composite slab and the dynamic balance of the load, and ensuring the stability and controllability of the hoisting process.

[0021] 3. Through the buffer mechanism of the present invention, the lifting impact force is converted into a horizontal compression motion driven by a transmission rod through the vertical displacement of the movable column, and the vibration is absorbed by the energy consumption of the damping rod and the elastic deformation of the spring, solving the risk of damage to the laminated slab caused by shaking in traditional lifting, greatly reducing the damage of the impact load to the structure, and improving the lifting safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the present invention;

[0023] Figure 2 is a schematic structural view of the primary distribution beam of the present invention;

[0024] Figure 3 is a schematic structural view of the fixing mechanism of the present invention;

[0025] Figure 4 is a schematic structural view of the slider of the present invention;

[0026] Figure 5 is a schematic structural view of the positioning rod of the present invention;

[0027] Figure 6 is a schematic structural view of the plug-in component of the present invention;

[0028] Figure 7 is a schematic structural view of the counterweight mechanism of the present invention;

[0029] Figure 8 is a schematic structural view of the buffer mechanism of the present invention;

[0030] Figure 9 is a schematic structural view of the third screw of the present invention;

[0031] Figure 10 is a schematic structural view of the second screw of the present invention.

[0032] Among them, 1. Primary distribution beam; 2. Secondary distribution beam; 3. Fixing mechanism; 301. U-shaped plate; 302. Guide rod; 303. Cross handle; 304. Compression spring; 305. Auxiliary abutting rod; 306. Clamping plate; 307. Wedge block; 308. Auxiliary gasket; 4. Positioning mechanism; 401. Slide block; 402. First rotating ring; 403. Rotating rod; 404. Second screw rod; 5. Counterweight mechanism; 501. Counterweight block; 502. Second rotating ring; 503. Third screw rod; 504. Rotating rod; 505. Connecting block; 506. Slide plate; 507. Chute; 6. Suspension cable; 7. Connecting block; 8. Hook; 9. Assembly component; 901. Assembly block; 902. Fitting block; 903. Inserting rod; 904. Fixed plate; 905. Fixed pin; 10. Inserting component; 1001. Third rotating ring; 1002. Positioning rod; 11. Locking ring; 12. Buffer mechanism; 1201. Protective shell; 1202. Movable column; 1203. Movable plate; 1204. Damping rod; 1205. Concave block; 1206. Transmission rod; 1207. Movable block; 1208. Support rod; 1209. Spring. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to the attached Figure 1 -attached Figure 2 , the embodiment of the present invention provides a precast composite slab hoisting auxiliary hanger, including a primary distribution beam 1. A secondary distribution beam 2 is arranged on the top of the primary distribution beam 1. Two buffer mechanisms 12 are arranged on the front and rear sides of the tops of the primary distribution beam 1 and the secondary distribution beam 2. A locking ring 11 is slidably connected to the top of the buffer mechanism 12. The locking ring 11 is connected to the secondary distribution beam 2 through a suspension cable 6. A plurality of counterweight mechanisms 5 evenly distributed in a horizontal straight line are arranged inside the front and rear sides of the secondary distribution beam 2. The buffer mechanism 12 on the top of the secondary distribution beam 2 is connected to a connecting block 7 through a suspension cable 6. A hook 8 is hoisted on the top of the connecting block 7. Two positioning mechanisms 4 are slidably connected to the front and rear sides of the primary distribution beam 1. A fixing mechanism 3 is arranged at the bottom of the positioning mechanism 4;

[0035] Specifically, the primary distribution beam 1 and the secondary distribution beam 2 are made of high-strength steel and serve as the main load-bearing frame of the hanger. The rigid structure disperses the lifting load. The buffer mechanism 12 is used to absorb the impact vibration during the lifting process. The locking ring 11 on the top is flexibly connected to the secondary distribution beam 2 through the sling 6 to transmit the lifting force while reducing shaking. The counterweight mechanism 5 arranged inside the secondary distribution beam 2 is used to balance the lifting center of gravity of composite plates of different specifications. The connecting block 7 is integrally formed of forged steel and is used as a lifting interface to connect the crane. The positioning mechanism 4 slides horizontally on the primary distribution beam 1 to adjust the position and cooperates with the fixing mechanism 3 at the bottom to ensure that the plate is stably fixed during lifting.

[0036] Please see attached Figure 3 - Attachment Figure 6 The fixing mechanism 3 includes a U-shaped plate 301, which is arranged on the side of the positioning mechanism 4 away from the primary distribution beam 1. The bottom of the U-shaped plate 301 is symmetrically slidably connected with a guide rod 302, and the bottom surface of the guide rod 302 is commonly fixed with a cross handle 303. The surface of the guide rod 302 is sleeved with an extrusion spring 304, and the top surface of the cross handle 303 is symmetrically provided with an auxiliary push rod 305. The top surface of the guide rod 302 is commonly fixedly connected with a clamping plate 306, and the top surface of the clamping plate 306 and the inner wall surface of the U-shaped plate 301 are fixedly connected with a wedge block 307, and the top surface of the auxiliary push rod 305 is fixedly connected with an auxiliary gasket 308. Two assembly components 9 are provided on the side of the U-shaped plate 301 close to the positioning mechanism 4.

[0037] Specifically, the U-shaped plate 301 is connected to the positioning mechanism 4, and the guide rod 302 is designed with a carbon steel threaded rod. The clamp 306 is driven to move vertically along the longitudinal direction of the U-shaped plate 301 through the extrusion spring 304, driving the wedge block 307 to apply pressure to the edge of the overlapping plate, and the auxiliary support rod 305 moves synchronously, driving the auxiliary gasket 308 to assist in applying pressure to the edge of the overlapping plate.

[0038] Please see attached Figure 3 , Attachment Figure 4 , Attachment Figure 10 The positioning mechanism 4 includes a slider 401, which is slidably connected to the front side of the primary distribution beam 1. The internal thread of the slider 401 is connected to a screw rod 404. A rotating ring 402 is fixed to the end of the screw rod 404 away from the primary distribution beam 1. Rotating rods 403 are fixed on the upper and lower sides of the rotating ring 402. A plug-in assembly 10 is arranged inside the screw rod 404.

[0039] Specifically, the slider 401 is made of wear-resistant alloy steel and is slidably connected to the front side of the primary distribution beam 1 to cooperate with the U-shaped plate 301. The screw rod 404 is designed with a high-carbon steel threaded rod. When the screw rod 404 is manually driven to rotate by the rotating ring 1 402 and the rotating rods 403 on both sides, the screw rod 404 slides in the slider 401, thereby achieving precise positioning of the slider 401.

[0040] Please refer to the appendix Figure 8 Figure 8 , the buffer mechanism 12 includes a protective shell 1201. The protective shell 1201 is fixed to the front top of the first-stage distribution beam 1. An active column 1202 slides inside the protective shell 1201. The active column 1202 is fixed to the bottom of the locking ring 11. On both the front and rear sides of the end of the active column 1202 close to the first-stage distribution beam 1, active plates 1203 are fixed. On the side of the active plate 1203 away from the first-stage distribution beam 1, a damping rod 1204 is fixed. The end of the damping rod 1204 away from the active plate 1203 is fixed to the inner top side of the protective shell 1201. On both the left and right sides of the active column 1202, concave blocks 1205 are fixed. A transmission rod 1206 rotates inside the concave block 1205. The end of the transmission rod 1206 away from the concave block 1205 rotates a moving block 1207. A support rod 1208 slides inside the moving block 1207. On the side of the moving block 1207 away from the active column 1202, a spring 1209 is fixed. The spring 1209 is sleeved on the outer periphery of the support rod 1208. The end of the support rod 1208 away from the moving block 1207 is fixed to the inside of the protective shell 1201.

[0041] Specifically, the protective shell 1201 is formed by welding steel plates. As the installation base of the overall structure, it is fixed on the top of the first-stage distribution beam 1, used to accommodate the buffer assembly and transfer external loads. The active column 1202 is made of cemented carbide, rigidly connected to the locking ring 11, and is connected to the damping rod 1204 through the active plate 1203 at the bottom. Under the impact force during hoisting, it drives the active column 1202 to slide along the inner wall of the protective shell 1201, causing the damping rod 1204 to compress and consume energy. The transmission rod 1206 embedded in the concave block 1205 converts the vertical displacement of the active column 1202 into the horizontal sliding of the moving block 1207 through rotation. When the moving block 1207 moves along the outer periphery of the support rod 1208, it pushes the spring 1209. The spring 1209 adopts a high-carbon steel spiral structure and is sleeved on the surface of the support rod 1208. It absorbs the remaining impact force through elastic deformation. The end of the support rod 1208 is anchored to the inner wall of the protective shell 1201 to ensure that the moving block 1207 maintains horizontal movement.

[0042] Please refer to the appendix Figure 9 Figure 9 , the counterweight mechanism 5 includes a counterweight block 501. The counterweight block 501 slides inside the front of the second-stage distribution beam 2. A second rotating ring 502 is threadedly connected to the front bottom of the second-stage distribution beam 2. A third screw rod 503 rotates at the end of the second rotating ring 502 close to the counterweight block 501. On both the left and right sides of the third screw rod 503, rotating rods 504 rotate. The end of the rotating rod 504 away from the third screw rod 503 rotates a connecting block 505. A sliding plate 506 is fixed to the end of the connecting block 505 close to the counterweight block 501. Two sliding grooves 507 are opened inside the front of the second-stage distribution beam 2. The outer periphery of the sliding plate 506 is slidably connected inside the sliding grooves 507. It should be noted that there may be some inaccuracies in the translation of technical terms. It is recommended to further consult relevant technical materials for more accurate expressions.

[0043] Specifically, the counterweight block 501 of the counterweight mechanism 5 is made of cast iron or high-density alloy, and is slidably embedded inside the front side of the secondary distribution beam 2 for adjusting the overall lifting center of gravity according to the specifications of the laminated board. The second rotating ring 502 is composed of a carbon steel threaded ring and moves vertically by rotating the driving screw rod three 503. The rotating rods 504 connected to both ends of the screw rod three 503 are designed as articulated steel rods, which convert the vertical displacement of the screw rod into a horizontal thrust to push the connecting block 505 to drive the sliding plate 506 to slide along the chute 507 inside the secondary distribution beam 2. The surfaces of the sliding plate 506 and the chute 507 are hardened to reduce frictional losses. The counterweight block 501 is locked or released through the displacement of the sliding plate 506, realizing flexible adjustment and fixation of the counterweight position, and ensuring the dynamic balance of the load distribution during the lifting process.

[0044] Please refer to the appendix Figure 3 and the appendix Figure 4 and the appendix Figure 7 As shown in FIGS.

[0045] Specifically, the assembly block 901 is in plug-in fit with the mating block 902. The mating block 902 is fixed inside the slider 401. The hard steel plug rod 903 passes through the middle parts of the assembly block 901 and the mating block 902 to achieve rapid plug-in locking of the U-shaped plate 301 and the slider 401. The fixing plate 904 connected to the end of the plug rod 903 is made of stamped steel plate. The stainless steel fixing pins 905 are inserted into the reserved hole positions on the upper and lower sides of the fixing plate 904 to double-fix the plug rod 903 and the mating block 902 of the slider 401, preventing the plug-in structure from loosening due to vibration during the lifting process.

[0046] Please refer to the appendix Figure 10 As shown in FIG.

[0047] Specifically, the positioning rod 1002 is made of hard steel bar and is embedded inside the screw rod two 404. The positioning rod 1002 moves along the axis of the screw rod two 404, and its end is inserted into the preset locking hole position on the inner wall of the primary distribution beam 1 to achieve rigid fixation of the slider 401 and the primary distribution beam 1. The third rotating ring 1001 is forged from carbon steel and is used to control the telescopic movement of the positioning rod 1002.

[0048] Working principle: Before hoisting the laminated slab, first pull the cross handle 303 at the bottom of the U-shaped plate 301 to compress the extrusion spring 304. The guide rod 302 drives the clamping plate 306 to move. Then insert the U-shaped plate 301 into the outer periphery of the laminated slab. Subsequently, release the cross handle 303. Under the elastic potential energy of the extrusion spring 304, drive the clamping plate 306 to move vertically along the longitudinal direction of the U-shaped plate 301, drive the wedge block 307 to press against the edge of the laminated slab, and the auxiliary resistance rod 305 moves synchronously, driving the auxiliary gasket 308 to assist in pressing against the edge of the laminated slab, thereby realizing clamping and fixing of the laminated slab;

[0049] After that, load the counterweight block 501. By rotating the second rotating ring 502, the second rotating ring 502 drives the third screw rod 503 to move vertically in the secondary distribution beam 2. During the vertical movement of the third screw rod 503, the two rotating rods 504 will rotate accordingly, thereby controlling the connecting block 505 to drive the sliding plate 506 to move. At this time, the sliding plate 506 will move along the sliding groove 507. After the two sliding grooves 507 move in opposite directions, the counterweight block 501 can be inserted into the secondary distribution beam 2. At this time, rotate the second rotating ring 502 in the reverse direction to make the two sliding grooves 507 move towards each other, thereby clamping and fixing the counterweight block 501 to complete the counterweight installation;

[0050] Subsequently, use a crane to pass the hook 8 through the connecting block 7 to lift the entire hanging frame. During the process of lifting the hanging frame, the sling 6 is gradually stretched. Then slide the slider 401 to match the position of the U-shaped plate 301. After the slider 401 slides to the appropriate position, rotate the rotating rod 403 and the first rotating ring 402 to make the slider 401 drive the positioning rod 1002 to slide into the interior of the primary distribution beam 1. After that, through the third rotating ring 1001, the positioning rod 1002 is embedded into the primary distribution beam 1 to complete the fixation of the slider 401:

[0051] Then insert the assembly block 901 fixed at the top of the U-shaped plate 301 into the interior of the slider 401 and plug it into the mating block 902. After the assembly block 901 and the mating block 902 are plugged and matched, insert the plug rod 903 into the interior of the slider 401 and make the plug rod 903 slide to the middle of the assembly block 901 and the mating block 902. After the plug rod 903 is located in the middle of the assembly block 901 and the mating block 902, the fixing plate 904 and the slider 401 can be fixed through the fixing pin 905;

[0052] Finally, use a crane to lift the laminated slab. During the lifting process, the sling 6 is further stretched, and a force is exerted on the locking ring 11. After the locking ring 11 receives the force, it will transmit the force to the movable column 1202. At this time, the movable column 1202 will move upward due to the force of the locking ring 11. During the upward movement of the movable column 1202, the movable column 1202 will cause the damping rod 1204 to contract through the movable plate 1203, and the transmission rod 1206 inside the concave block 1205 will also rotate, thereby pushing the moving block 1207 to slide along the outer circumference of the support rod 1208 and exert a force on the spring 1209. Through the contraction of the spring 1209 and the damping rod 1204, the force generated during hoisting is gradually absorbed, improving the hoisting safety.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hoisting auxiliary hanger for precast composite slabs, comprising a primary distribution beam (1), characterized in that, A secondary distribution beam (2) is arranged on the top of the primary distribution beam (1). Two buffer mechanisms (12) are arranged on the front and rear sides of the top of the primary distribution beam (1) and the secondary distribution beam (2). A locking ring (11) is slidably connected to the top of the buffer mechanism (12). The locking ring (11) is connected to the secondary distribution beam (2) through a sling (6). A plurality of weight mechanisms (5) evenly distributed in a horizontal straight line are arranged inside the front and rear sides of the secondary distribution beam (2). The buffer mechanism (12) on the top of the secondary distribution beam (2) is connected to an adapter block (7) through the sling (6). A hook (8) is suspended from the top of the adapter block (7). Two positioning mechanisms (4) are slidably connected to the front and rear sides of the primary distribution beam (1). A fixing mechanism (3) is arranged at the bottom of the positioning mechanism (4); The fixing mechanism (3) includes a U-shaped plate (301). The U-shaped plate (301) is arranged on the side of the positioning mechanism (4) away from the primary distribution beam (1). Guide rods (302) are symmetrically and slidably connected to the bottom of the U-shaped plate (301). A cross handle (303) is fixedly connected to the bottom surface of the guide rods (302) together. Compression springs (304) are sleeved on the surfaces of the guide rods (302). Auxiliary resisting rods (305) are symmetrically arranged on the top surface of the cross handle (303). Clamping plates (306) are fixedly connected to the top surface of the guide rods (302) together. Wedge blocks (307) are fixedly connected to the top surface of the clamping plates (306) and the inner wall surface of the U-shaped plate (301). Auxiliary gaskets (308) are fixedly connected to the top surface of the auxiliary resisting rods (305). Two assembly components (9) are arranged on the side of the U-shaped plate (301) close to the positioning mechanism (4); The positioning mechanism (4) includes a slider (401). The slider (401) is slidably connected to the front side of the primary distribution beam (1). A second screw (404) is threadedly connected to the inside of the slider (401). A first rotating ring (402) is fixed to one end of the second screw (404) away from the primary distribution beam (1). Rotating rods (403) are fixed to the upper and lower sides of the first rotating ring (402). An inserting component (10) is arranged inside the second screw (404); The weight mechanism (5) includes a weight block (501). The weight block (501) slides inside the front side of the secondary distribution beam (2). A second rotating ring (502) is threadedly connected to the bottom of the front side of the secondary distribution beam (2). A third screw (503) is rotated at one end of the second rotating ring (502) close to the weight block (501). Rotating rods (504) are rotated on the left and right sides of the third screw (503). A connecting block (505) is rotated at one end of the rotating rod (504) away from the third screw (503). A sliding plate (506) is fixed to one end of the connecting block (505) close to the weight block (501); The assembly component (9) includes an assembly block (901), the assembly block (901) is fixed on the top of the U-shaped plate (301), a mating block (902) is fixed inside the slider (401), an insertion rod (903) slides in the middle of the assembly block (901) and the mating block (902), one end of the insertion rod (903) is fixed with a fixing plate (904), and fixing pins (905) are arranged on both the upper and lower sides of the fixing plate (904).

2. The lifting auxiliary hanger for precast composite slabs according to claim 1, characterized in that The buffer mechanism (12) includes a protective shell (1201), the protective shell (1201) is fixed on the front top of the primary distribution beam (1), a movable column (1202) slides inside the protective shell (1201), movable plates (1203) are fixed on both the front and rear sides of one end of the movable column (1202) close to the primary distribution beam (1), a damping rod (1204) is fixed on the side of the movable plate (1203) away from the primary distribution beam (1), concave blocks (1205) are fixed on both the left and right sides of the movable column (1202), a transmission rod (1206) rotates inside the concave block (1205), a movable block (1207) rotates at one end of the transmission rod (1206) away from the concave block (1205), a support rod (1208) slides inside the movable block (1207), and a spring (1209) is fixed on the side of the movable block (1207) away from the movable column (1202).

3. The lifting auxiliary hanger for precast composite slabs according to claim 1, characterized in that, The plug-in component (10) includes a positioning rod (1002), the positioning rod (1002) is arranged inside the second screw (404), and a rotating ring three (1001) is fixed at one end of the positioning rod (1002) away from the primary distribution beam (1).

4. The lifting auxiliary hanger for precast composite slabs according to claim 2, characterized in that One end of the damping rod (1204) away from the movable plate (1203) is fixed on the inner top side of the protective shell (1201), and the movable column (1202) is fixed at the bottom of the lock ring (11).

5. The lifting auxiliary hanger for precast composite slabs according to claim 1, characterized in that, Two sliding grooves (507) are formed in the front inner side of the secondary distribution beam (2), and the outer periphery of the sliding plate (506) is slidably connected inside the sliding groove (507).

6. The lifting auxiliary hanger for precast composite slabs according to claim 1, characterized in that, The compression spring (304) is fixedly connected between the bottom surface of the clamping plate (306) and the inner wall surface of the U-shaped plate (301), and the auxiliary abutting rod (305) has the same length as the guiding rod (302).

7. The lifting auxiliary hanger for precast composite slabs according to claim 2, wherein, The spring (1209) is sleeved on the outer periphery of the support rod (1208), and one end of the support rod (1208) away from the movable block (1207) is fixed inside the protective shell (1201).

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