Stacking equipment for transportation of composite floor slabs

By using a stacked lifting plate design, the problem of bumping and slipping of prestressed slabs during the transportation of composite floor slabs was solved, achieving stable transportation and efficient construction, and improving construction safety and efficiency.

CN121470331AActive Publication Date: 2026-02-06JIANGSU TONGHUI GREEN BUILDING TECH CO LTD
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Patent Information

Application Number
CN202610026686.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-09
Publication Date
2026-02-06
Estimated Expiration
2046-01-09

AI Technical Summary

Technical Problem

During the transportation and stacking of existing composite floor slabs, prestressed base slabs are prone to bumps, damage, slippage, and displacement. The lack of effective fixing measures leads to low construction efficiency and high safety risks.

Method used

The design employs a stacked lifting plate system, with the upper chord ribs secured by snap-on plates, connecting sleeves that work in conjunction with prestressed steel bars, splicing grooves and splicing plates for fixation, and pulleys for easy adjustment, thus achieving stable lifting.

Benefits of technology

This effectively avoids damage to the prestressed base plate from impacts, ensures stable transportation and stacking, improves construction efficiency and safety, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of lifting appliances, in particular to stacking equipment for composite floor slab transportation, a plurality of buckle plates are fixed on the top surface of a stacking lifting appliance plate, the buckle plates sleeve the end part of an upper chord rib plate, a baffle plate is fixed on the surface of the stacking lifting appliance plate, a connecting sleeve is fixed on the surface of the baffle plate, and a prestressed reinforcement penetrates through the baffle plate and the connecting sleeve. A clamping block is inserted into the surface of the connecting sleeve, and a limiting sleeve is in threaded connection with the end of the connecting sleeve in a sleeving mode and extrudes and pushes the connecting sleeve to clamp the prestressed reinforcement; the device has the beneficial effects that the buckle plates are arranged on the stacked lifting appliance plates, the buckle plates are arranged at the end parts of the upper chord rib plates in a sleeving manner, and after two groups of prestressed bottom plates provided with the stacked lifting appliance plates are stacked, the buckle plates not only surround the end parts of the upper chord rib plates, but also are supported on the lower sides of the upper prestressed bottom plates. According to the design, the collision problem caused by vibration and shaking in the transportation and carrying process due to the fact that the prestressed bottom plate is directly lapped on the upper chord rib plate is effectively avoided.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lifting devices, in particular to a stacking device for transporting composite floors. BACKGROUND

[0002] In the field of construction, composite floors are widely used in various construction projects due to their unique structural advantages. A composite floor is usually composed of a prestressed bottom plate and an upper concrete layer. During transportation and stacking, the safety and stability of the prestressed bottom plate need to be ensured to avoid damage or deformation during handling, which affects the subsequent construction quality and building safety.

[0003] Currently, in the transportation and stacking process of composite floors, the direct stacking method is commonly used, that is, multiple prestressed bottom plates are stacked one after another. However, this method has many drawbacks. On the one hand, the prestressed bottom plate is directly connected to the upper chord rib plate. During handling and transportation, due to vibration and shaking, the prestressed bottom plate and the upper chord rib plate are prone to collision, resulting in damage to the surface of the prestressed bottom plate, affecting its structural strength and service life. On the other hand, the existing stacking method lacks effective fixing measures, and the stacked prestressed bottom plates are prone to sliding or displacement, which not only increases the difficulty and risk of handling, but also may cause damage to surrounding personnel and equipment. In addition, when multiple stacked prestressed bottom plates need to be hoisted and adjusted in position, due to the lack of convenient operation structure and device, a large amount of manpower and time is often required, which reduces the construction efficiency.

[0004] Therefore, it is of great practical significance to develop a stacking device for transporting composite floors that can effectively solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a stacking device for transporting composite floors to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a stacking device for transporting composite floors, comprising two stacking hoist plates, two stacking hoist plates are respectively buckled at both ends of the prestressed bottom plate, a plurality of prestressed steel bars are inserted into the prestressed bottom plate, a plurality of upper chord rib plates are arranged above the prestressed bottom plate, and a plurality of web pipe trusses are fixed between the upper chord rib plates and the prestressed bottom plate. The top surface of the stacking hoist plate is fixed with a plurality of buckling plates, the buckling plates are sleeved on the end of the upper chord rib plate, the surface of the stacking hoist plate is fixed with a baffle, the surface of the baffle is fixed with a connecting sleeve, the prestressed steel bars pass through the baffle and the connecting sleeve, the connecting sleeve is inserted with a clamping block, and the end of the connecting sleeve is sleeved with a limiting sleeve connected by a screw, the limiting sleeve pushes the connecting sleeve to clamp the prestressed steel bars. Both ends of the stacking spreader plate are provided with splicing grooves on the bottom surface, and splicing plates are fixed on the top surfaces of both ends of the stacking spreader plate. After two prestressed bottom plates equipped with stacking spreader plates are stacked, the top end of the splicing plate on the top of one stacking spreader plate is inserted into the splicing groove at the bottom of the other stacking spreader plate. A hand-tightening screw is screwed on the surface of the splicing plate. After passing through the splicing plate, the hand-tightening screw is screwed on the surface of the splicing groove; Reinforcing rib plates are fixed on the surface of the splicing plate. The bottom ends of the reinforcing rib plates are fixed on the top surface of the stacking spreader plate, and suspension grooves are formed on the surfaces of the reinforcing rib plates; Both ends of the baffle are rotatably connected with pulleys.

[0007] Preferably, the stacking spreader plate has a "C"-shaped plate structure. The distance from the bottom surface of the top plate of the stacking spreader plate to the bottom surface of the side plate of the stacking spreader plate is equal to the thickness of the prestressed bottom plate. After the stacking spreader plate is buckled on the top of one end of the prestressed bottom plate, the baffle abuts against the end of the prestressed bottom plate.

[0008] Preferably, the buckling plate has an inverted "convex"-shaped frame body, and a first rubber pad is fixed on the top surface of the buckling plate.

[0009] Preferably, the connecting sleeve has a "convex"-shaped circular tube. Multiple jacks are formed on the outer ring surface at one end of the connecting sleeve, and an inner ring groove is formed on the inner ring surface of the connecting sleeve. The jacks communicate with the inner ring groove, and a rubber ring is fixed inside the inner ring groove. The rubber ring is clamped between the prestressed steel bar and the connecting sleeve.

[0010] Preferably, the clamping blocks correspond to the jacks one by one. The clamping blocks are inserted into the jacks. The width of the clamping block is greater than the depth of the jack. One end of the clamping block is fixed on the outer ring surface of the rubber ring, and the other end of the clamping block has an inclined surface. External threads are provided on the outer ring surface at one end of the connecting sleeve, and internal threads are provided on the inner ring surface of the limiting sleeve. After the limiting sleeve is sleeved on the connecting sleeve, the internal threads and the external threads are in threaded connection. A second rubber pad is fixed on the surface of the connecting sleeve, and the limiting sleeve clamps the second rubber pad to generate elastic deformation.

[0011] Preferably, the height of the splicing plate is equal to the height of the buckling plate. Threaded grooves matching the hand-tightening screws are formed on the surface of the splicing groove. A pull ring is fixed on the side of the splicing plate away from the reinforcing rib plate. The pull ring has a "C"-shaped plate structure.

[0012] Preferably, the reinforcing rib plate has a right-angled trapezoidal plate shape. There are two reinforcing rib plates, and the suspension grooves formed on the surfaces of the two reinforcing rib plates are both oblong openings.

[0013] Preferably, both ends of the baffle are provided with side grooves. The side grooves have a "U"-shaped groove structure. Limiting shafts are fixed inside the side grooves. The limiting shafts have a "T"-shaped round rod shape. The pulleys are sleeved on the rod bodies of the limiting shafts.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The stacking equipment for transporting composite floor slabs proposed in this invention uses clips mounted on stacking lifting plates. These clips are fitted onto the ends of the upper chord ribs. After two sets of prestressed base slabs equipped with stacking lifting plates are stacked, the clips not only protect the ends of the upper chord ribs but also support the underside of the upper prestressed base slab. This design effectively avoids the problem of collisions caused by vibration and shaking during transportation and handling when the prestressed base slab directly overlaps the upper chord ribs. It greatly reduces the possibility of surface damage to the prestressed base slab, ensuring its structural strength and service life, and improving the quality of the composite floor slab.

[0015] Connecting sleeves are installed on the surface of the baffle, with prestressed steel bars passing through the baffle and connecting sleeves. Through the screw connection between the limiting sleeve and the connecting sleeve, the clamping block is pushed during the advancement of the limiting sleeve, causing the clamping block to stretch the rubber ring and produce elastic deformation. This allows multiple connecting sleeves to jointly clamp the prestressed steel bars. This fixing method effectively prevents the stacked lifting plates from sliding along the prestressed steel bars, ensuring that the stacked lifting plates are firmly fixed to the ends of the prestressed base plate. This enhances the stability of the stacked structure, reduces the risk of the prestressed base plate slipping or shifting during transportation and stacking, and improves construction safety.

[0016] The stacking lifting platform has splicing slots and fixed splicing plates at both ends. After two prestressed base plates with the stacking lifting platform are stacked, the splicing plates are inserted into the splicing slots and fixed by hand-tightening bolts. This design not only ensures that multiple prestressed base plates can be stacked neatly, but also facilitates the simultaneous lifting of multiple stacked prestressed base plates to the storage location or transport vehicle. Furthermore, pull rings are installed on the splicing plates, and by bolting and knotting the binding ropes, the connection of multiple stacked prestressed base plates is further reinforced, enhancing the overall structural stability and providing convenience for lifting operations.

[0017] Reinforcing ribs are fixed to the surface of the splicing slabs, and suspension grooves are made on the surface of the reinforcing ribs. Lifting ropes are passed through the suspension grooves for lifting. The reinforcing ribs are right-angled trapezoidal plates, which not only reinforce the splicing slabs connected to the stacked lifting plates and enhance the overall strength of the structure, but also provide stable lifting load points. This ensures that multiple stacked prestressed base plates can be safely and reliably supported during the lifting process, improving the efficiency and safety of the lifting operation.

[0018] Rotating pulleys are connected to both ends of the baffle. When multiple stacked prestressed base plates are hoisted from the truck to the ground, the pulleys are oriented towards the ground, allowing workers to push the prestressed base plates along both sides, moving them a short distance to positions where hoisting is inconvenient for adjustment. This design greatly improves the flexibility and convenience of on-site construction, reduces complex handling operations due to unfavorable locations, saves manpower and time, and improves construction efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Sectional view of the structure at point AA; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B; Figure 4 This is a schematic diagram of the connection structure between the stacked lifting plate and the prestressed base plate of the present invention; Figure 5 for Figure 4 Cross-sectional view of the structure at point CC; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point D; Figure 7 This is a schematic diagram of the connection structure between the stacked lifting plate and the buckle plate of the present invention; Figure 8 This is a schematic diagram of the connecting sleeve structure of the present invention; Figure 9 This is a schematic diagram of the structure after multiple prestressed base plates of the present invention are assembled and placed vertically on the ground.

[0020] In the diagram: 1. Stacked lifting plate, 101. Baffle, 102. Splicing groove, 103. Side groove, 104. Prestressed base plate, 2. Prestressed steel bar, 201. Upper chord rib, 202. Web truss, 203. Buckle plate, 3. Rubber pad 1, 301. Connecting sleeve, 4. Inner ring groove, 401. Insertion hole, 402. Rubber ring, 403. Clamping block, 404. Limiting sleeve, 5. Rubber pad 2, 501. Splicing plate, 6. Hand-tightening screw, 601. Pull ring, 602. Reinforcing rib, 7. Suspension groove, 701. Pulley, 8. Limiting shaft, 801. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1 to 9, the present invention provides a technical solution: a stacking device for transporting laminated floors, including two stacking sling plates 1. The two stacking sling plates 1 are respectively buckled at both ends of the prestressed bottom plate 2. A plurality of prestressed steel bars 201 are inserted into the prestressed bottom plate 2. Above the prestressed bottom plate 2, there are a plurality of upper chord rib plates 202. A plurality of web tube trusses 203 are fixed between the upper chord rib plates 202 and the prestressed bottom plate 2. The stacking sling plate 1 is in a "C" - shaped plate structure. The distance from the bottom surface of the top plate of the stacking sling plate 1 to the bottom surface of the side plate of the stacking sling plate 1 is equal to the thickness of the prestressed bottom plate 2. After the stacking sling plate 1 is buckled on the top of one end of the prestressed bottom plate 2, the baffle 101 abuts against the end of the prestressed bottom plate 2. A plurality of clamping plates 3 are fixed on the top surface of the stacking sling plate 1. The clamping plates 3 are sleeved on the ends of the upper chord rib plates 202. A baffle 101 is fixed on the surface of the stacking sling plate 1. The clamping plate 3 is an inverted "convex" - shaped frame. A rubber pad 301 is fixed on the top surface of the clamping plate 3.

[0023] When multiple prestressed bottom plates 2 need to be stacked, the two stacking sling plates 1 are respectively buckled at both ends of the prestressed bottom plate 2, and the clamping plates 3 are sleeved on the corresponding upper chord rib plates 202. After two groups of prestressed bottom plates 2 installed with stacking sling plates 1 are stacked, the clamping plates 3 not only enclose the ends of the upper chord rib plates 202, but also support the lower side of the upper prestressed bottom plate 2, avoiding the collision problem caused by the direct lap of the prestressed bottom plate 2 on the upper chord rib plate 202.

[0024] In order to prevent the stacking sling plate 1 buckled at the end of the prestressed bottom plate 2 from falling off, it is proposed that: A connecting sleeve 4 is fixed on the surface of the baffle 101. The prestressed steel bar 201 penetrates through the baffle 101 and the connecting sleeve 4. A clamping block 404 is inserted into the surface of the connecting sleeve 4. And a limiting sleeve 5 is sleeved and screwed at the end of the connecting sleeve 4. The limiting sleeve 5 squeezes the connecting sleeve 4 to clamp the prestressed steel bar 201. The connecting sleeve 4 is a "convex" - shaped circular tube. A plurality of jacks 402 are opened on the outer ring surface at one end of the connecting sleeve 4. An inner ring groove 401 is opened on the inner ring surface of the connecting sleeve 4. The jacks 402 communicate with the inner ring groove 401. A rubber ring 403 is fixed inside the inner ring groove 4, and the rubber ring 403 is clamped between the prestressed steel bar 201 and the connecting sleeve 4. The clamping blocks 404 and the jacks 402 correspond to each other. The clamping blocks 404 are inserted into the jacks 402. The width of the clamping block 404 is greater than the depth of the jack 402. One end of the clamping block 404 is fixed on the outer ring surface of the rubber ring 403. The other end of the clamping block 404 has an inclined surface. An external thread is provided on the outer ring surface at one end of the connecting sleeve 4. An internal thread is provided on the inner ring surface of the limiting sleeve 5. After the limiting sleeve 5 is sleeved on the connecting sleeve 4, the internal thread and the external thread are in threaded connection. A rubber pad 501 is fixed on the surface of the connecting sleeve 4. The limiting sleeve 5 clamps the rubber pad 501 to generate elastic deformation.

[0025] When the stacking spreader plate 1 is buckled at the end of the prestressed bottom plate 2, the prestressed steel bar 201 passes through the reserved hole 102 opened on the surface of the baffle 101. After the baffle 101 abuts against the end of the prestressed bottom plate 2, the limit sleeve 5 is sleeved and screwed on the connecting sleeve 4. During the pushing process of the limit sleeve 5, the clamping block 404 is squeezed along the inclined surface. The clamping block 404 retracts into the jacking hole 402, and the clamping block 404 stretches the rubber ring 403 to generate elastic deformation. The rubber ring 403 is clamped by the clamping block 404 on the surface of the prestressed steel bar 201. At this time, multiple connecting sleeves 4 jointly clamp the prestressed steel bar 201 to prevent the connecting sleeve 4 from sliding along the prestressed steel bar 201, thereby realizing the fixation of the stacking spreader plate 1 at the end of the prestressed bottom plate 2.

[0026] In order to realize the connection and fixation of two stacked prestressed bottom plates 2, the following is proposed: Splicing grooves 103 are opened on the bottom surfaces at both ends of the stacking spreader plate 1, and splicing plates 6 are fixed on the top surfaces at both ends of the stacking spreader plate 1. After two prestressed bottom plates 2 equipped with stacking spreader plates 1 are stacked, the top end of the splicing plate 6 at the top of one stacking spreader plate 1 is inserted into the splicing groove 103 at the bottom of the other stacking spreader plate 1. A hand-tightening screw 601 is screwed on the surface of the splicing plate 6. After passing through the splicing plate 6, the hand-tightening screw 601 is screwed on the surface of the splicing groove 103; the height of the splicing plate 6 is equal to the height of the buckling plate 3. A screwing groove matching the hand-tightening screw 601 is opened on the surface of the splicing groove 103. A pull ring 602 is fixed on one side of the splicing plate 6 away from the reinforcing rib plate 7. The pull ring 602 is in a "C"-shaped plate structure.

[0027] Two stacked prestressed bottom plates 2 equipped with stacking spreader plates 1 are connected and fixed through the splicing plate 6, which not only ensures the neat stacking of multiple prestressed bottom plates 2, but also facilitates the subsequent simultaneous hoisting of multiple stacked prestressed bottom plates 2 to the stacking location or the transport vehicle; after tying a binding rope to the pull ring 602 at the bottom of one side of multiple stacked prestressed bottom plates 2, one end of the rope is sequentially passed through multiple pull rings 602 above and on the other side, and knots are tied when passing through each pull ring 602. Finally, one end of the rope is tied to the pull ring 602 at the bottom of the other end to reinforce the connection after the stacking of multiple prestressed bottom plates 2.

[0028] In order to realize the hoisting of multiple stacked prestressed bottom plates 2, the following is proposed: A reinforcing rib plate 7 is fixed on the surface of the splicing plate 6. The bottom end of the reinforcing rib plate 7 is fixed on the top surface of the stacking spreader plate 1. A hanging groove 701 is opened on the surface of the reinforcing rib plate 7; the reinforcing rib plate 7 is in a right-angled trapezoidal plate shape, and there are two reinforcing rib plates 7. The hanging grooves 701 opened on the surfaces of the two reinforcing rib plates 7 are both oblong openings. The hoisting rope is passed through the hanging groove 701. The reinforcing rib plate 7 not only realizes the reinforcement of the connection between the splicing plate 6 and the stacking spreader plate 1, but also realizes the hoisting load-bearing after the hoisting rope passes through.

[0029] In order to facilitate the adjustment of the direction when multiple prestressed floor slabs 2 stacked and assembled are hoisted to the ground on site, the following is proposed: Both ends of the baffle 101 are rotatably connected with pulleys 8. Both ends of the baffle 101 are provided with side grooves 104. The side grooves 104 are in the shape of a "U" - shaped groove. A limiting shaft 801 is fixed inside the side groove 104. The limiting shaft 801 is a "T" - shaped round rod. The pulley 8 is sleeved on the rod body of the limiting shaft 801. When multiple stacked and connected prestressed floor slabs 2 are hoisted from the truck to the ground, the pulley 8 can be oriented towards the ground, and workers can hold the prestressed floor slab 2 on both sides and push the prestressed floor slab 2 to adjust the position at a short distance where hoisting is not convenient.

[0030] The usage method of the stacking equipment for transporting the composite floor slab is as follows: Fasten two stacking sling plates 1 respectively at both ends of the prestressed floor slab 2, so that the distance from the bottom surface of the top plate to the bottom surface of the side plate of the stacking sling plate 1 in the shape of a "C" - shaped plate structure is equal to the thickness of the prestressed floor slab 2. Ensure that after the stacking sling plate 1 is fastened on the top of one end of the prestressed floor slab 2, the baffle 101 abuts against the end of the prestressed floor slab 2. At the same time, sleeve multiple buckle plates 3 on the top surface of the stacking sling plate 1 on the ends of the upper chord rib plates 202. The buckle plate 3 is an inverted "convex" - shaped frame body, and a first rubber pad 301 is fixed on its top surface. The prestressed steel bars 201 pass through the reserved holes 102 formed on the surface of the baffle 101. After the baffle 101 abuts against the end of the prestressed floor slab 2, sleeve and screw the limiting sleeve 5 on the connecting sleeve 4. The connecting sleeve 4 is a "convex" - shaped round tube. Multiple jacks 402 are opened on the outer ring surface at one end, and an inner ring groove 401 is opened on the inner ring surface. The jacks 402 communicate with the inner ring groove 401, and a rubber ring 403 is fixed inside the inner ring groove 401. During the process of pushing the limiting sleeve 5, the clamping block 404 is pushed along the inclined surface of the clamping block 404, so that the clamping block 404 retracts into the jack 402. The clamping block 404 stretches the rubber ring 403 to generate elastic deformation, and the rubber ring 403 is clamped by the clamping block 404 on the surface of the prestressed steel bar 201. At this time, multiple connecting sleeves 4 jointly clamp the prestressed steel bar 201 to prevent the connecting sleeve 4 from sliding along the prestressed steel bar 201, thereby fixing the stacking sling plate 1 at the end of the prestressed floor slab 2. A second rubber pad 501 is fixed on the surface of the connecting sleeve 4. The limiting sleeve 5 clamps the second rubber pad 501 to generate elastic deformation, and one end of the connecting sleeve 4 has an external thread on the outer ring surface, and the inner ring surface of the limiting sleeve 5 has an internal thread, and the two are connected by thread cooperation.

[0031] Stack two groups of prestressed bottom plates 2 equipped with stacked sling plates 1 so that the buckle plates 3 enclose the ends of the upper chord rib plates 202 and support on the lower side of the upper prestressed bottom plate 2 to avoid the problem of collision when the prestressed bottom plate 2 directly overlaps on the upper chord rib plate 202. The top end of the splicing plate 6 at the top of one stacked sling plate 1 is inserted into the splicing groove 103 at the bottom of the other stacked sling plate 1, and the height of the splicing plate 6 is equal to the height of the buckle plate 3. Then, the hand-tightening screw 601 passes through the splicing plate 6 and is screwed into the screw connection groove opened on the surface of the splicing groove 103 to realize the connection and fixation of the two stacked sling plates 1, thereby ensuring the neat stacking of multiple prestressed bottom plates 2 and facilitating the subsequent simultaneous hoisting of multiple stacked prestressed bottom plates 2 to the stacking location or the transport vehicle.

[0032] Tie a binding rope body to the pull ring 602 (the pull ring 602 is in a "C"-shaped plate structure and is fixed on the side of the splicing plate 6 away from the reinforcing rib plate 7) at the bottom of the lowermost side of one side of multiple stacked prestressed bottom plates 2. Pass one end of the rope body through the pull rings 602 above and on the other side in sequence, and tie a knot each time passing through each pull ring 602. Finally, tie one end of the rope body to the pull ring 602 at the bottom of the other end to reinforce the connection after multiple prestressed bottom plates 2 are stacked.

[0033] Reinforcing rib plates 7 in the shape of right-angled trapezoidal plates are fixed on the surface of the splicing plate 6. There are two reinforcing rib plates 7, and their bottom ends are fixed on the top surface of the stacked sling plate 1, and suspension grooves 701 in the shape of oblong openings are formed on the surface. Pass the hoisting rope through the suspension grooves 701. The reinforcing rib plates 7 not only play a role in reinforcing the connection between the splicing plate 6 and the stacked sling plate 1, but also can be used for hoisting and bearing after the hoisting rope passes through.

[0034] Both ends of the baffle plate 101 are provided with side grooves 104 in the shape of "U"-shaped grooves, and limiting shafts 801 in the shape of "T"-shaped round rods are fixed inside the side grooves 104. The pulleys 8 are sleeved on the rod bodies of the limiting shafts 801. When multiple stacked and connected prestressed bottom plates 2 are hoisted from the freight car to the ground, turn the pulleys 8 towards the ground, and workers hold the prestressed bottom plates 2 on both sides and push them to move them a short distance to a position where hoisting is not convenient for adjustment.

[0035] 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 spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stacking device for transporting composite floor slabs, including stacking sling plates (1). There are two stacking sling plates (1), and the two stacking sling plates (1) are respectively buckled at both ends of the prestressed bottom plate (2). A plurality of prestressed steel bars (201) are inserted into the interior of the prestressed bottom plate (2). A plurality of upper chord rib plates (202) are provided above the prestressed bottom plate (2), and a plurality of web tube trusses (203) are fixed between the upper chord rib plates (202) and the prestressed bottom plate (2); Its features are: A plurality of buckle plates (3) are fixed on the top surface of the stacking sling plate (1). The buckle plates (3) are sleeved on the ends of the upper chord rib plates (202). A baffle (101) is fixed on the surface of the stacking sling plate (1). A connecting sleeve (4) is fixed on the surface of the baffle (101). The prestressed steel bar (201) penetrates through the baffle (101) and the connecting sleeve (4). A clamping block (404) is inserted into the surface of the connecting sleeve (4), and a limiting sleeve (5) is sleeved and screwed at the end of the connecting sleeve (4). The limiting sleeve (5) squeezes the connecting sleeve (4) to clamp the prestressed steel bar (201); Splicing grooves (103) are formed at both ends of the bottom surface of the stacking sling plate (1), and splicing plates (6) are fixed on the top surfaces of both ends of the stacking sling plate (1). After two prestressed bottom plates (2) equipped with stacking sling plates (1) are stacked, the top end of the splicing plate (6) at the top of one stacking sling plate (1) is inserted into the splicing groove (103) at the bottom of the other stacking sling plate (1). A hand-tightening screw (601) is screwed on the surface of the splicing plate (6). The hand-tightening screw (601) penetrates through the splicing plate (6) and is screwed on the surface of the splicing groove (103); Reinforcement rib plates (7) are fixed on the surface of the splicing plate (6). The bottom ends of the reinforcement rib plates (7) are fixed on the top surface of the stacking sling plate (1). Hanging grooves (701) are formed on the surface of the reinforcement rib plates (7); Pulleys (8) are rotatably connected to both ends of the baffle (101).

2. The stacking equipment for transporting composite floor slabs according to claim 1, characterized in that: The stacking sling plate (1) has a "C"-shaped plate structure. The distance from the bottom surface of the top plate of the stacking sling plate (1) to the bottom surface of the side plate of the stacking sling plate (1) is equal to the thickness of the prestressed bottom plate (2). After the stacking sling plate (1) is buckled on the top of one end of the prestressed bottom plate (2), the baffle (101) abuts against the end of the prestressed bottom plate (2).

3. The stacking equipment for transporting composite floor slabs according to claim 1, characterized in that: The buckle plate (3) has an inverted "convex" - shaped frame body, and a rubber pad I (301) is fixed on the top surface of the buckle plate (3).

4. The stacking equipment for transporting composite floor slabs according to claim 1, characterized in that: The connecting sleeve (4) is a "convex" - shaped circular tube. A plurality of jacks (402) are formed on the outer ring surface at one end of the connecting sleeve (4). An inner ring groove (401) is formed on the inner ring surface of the connecting sleeve (4). The jacks (402) communicate with the inner ring groove (401). A rubber ring (403) is fixed inside the inner ring groove (401). The rubber ring (403) is clamped between the prestressed steel bar (201) and the connecting sleeve (4).

5. A stacking device for transporting composite floor slabs according to claim 4, characterized in that: The clamping blocks (404) and the jacks (402) correspond to each other one by one. The clamping blocks (404) are inserted into the jacks (402). The width of the clamping blocks (404) is greater than the depth of the jacks (402). One end of the clamping blocks (404) is fixed to the outer ring surface of the rubber ring (403). The other end of the clamping blocks (404) is provided with an inclined surface. One end of the connecting sleeve (4) is provided with an external thread on the outer ring surface. The inner ring surface of the limiting sleeve (5) is provided with an internal thread. After the limiting sleeve (5) is sleeved on the connecting sleeve (4), the internal thread and the external thread are in mating connection. A second rubber pad (501) is fixed on the surface of the connecting sleeve (4). The limiting sleeve (5) clamps the second rubber pad (501) to cause elastic deformation.

6. The stacking equipment for transporting composite floor slabs according to claim 1, characterized in that: The height of the splicing plate (6) is equal to the height of the buckle plate (3). A screwing groove matching the hand-tightening screw (601) is formed on the surface of the splicing groove (103). A pull ring (602) is fixed on one side of the splicing plate (6) away from the reinforcing rib plate (7). The pull ring (602) has a "C"-shaped plate structure.

7. A stacking device for transporting composite floor slabs according to claim 1, characterized in that: The reinforcing rib plate (7) is a right trapezoidal plate. There are two reinforcing rib plates (7). The hanging grooves (701) formed on the surfaces of the two reinforcing rib plates (7) are both oblong openings.

8. A stacking device for transporting composite floor slabs according to claim 1, characterized in that: Both ends of the baffle (101) are provided with side grooves (104). The side grooves (104) are "U"-shaped grooves. A limiting shaft (801) is fixed inside the side grooves (104). The limiting shaft (801) is a "T"-shaped round rod. The pulley (8) is sleeved on the rod body of the limiting shaft (801).

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