A simple lifting device for super-long reinforcement cage

Abstract

The utility model discloses a kind of super-long reinforcement cage simple lifting appliance, including hanger, the top side of the hanger is fixedly installed with two mounting brackets, two mounting brackets are U-shaped, the side of two mounting brackets is all set with round hole, two round holes are all provided with linkage column, by motor, rotating rod, second synchronous wheel, synchronous belt, first synchronous wheel, rotating column, first bevel gear, second bevel gear, linkage column and the transmission adjusting structure of winding wheel structure, the quick synchronous adjustment of rope length can be realized, for the problem that traditional lifting appliance lifting rope length is fixed, need to replace lifting appliance or disassembly binding adjustment, the device is driven synchronous belt transmission and bevel gear meshing transmission by motor, drive two winding wheels reverse synchronous rotation, directly realize the stretching or contraction of rope, without the aid of special auxiliary tool, single person can complete operation, substantially shorten the preparation time of different length reinforcement cage hoisting, effectively improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel bar hoisting technology, and in particular to a simple hoisting tool for ultra-long steel bar cages. Background Technology

[0002] In the deep foundation pit support and pile foundation construction of large-scale infrastructure projects such as bridges, rail transit, and high-rise buildings, ultra-long steel cages are core load-bearing components. The safety and efficiency of their hoisting operations directly affect the project quality and construction progress. As engineering construction develops towards large spans and deep burial, the length of steel cages is constantly increasing, with conventional lengths reaching 15-30m, and some special projects even exceeding 30m. This places higher demands on the adaptability and adjustment flexibility of hoisting equipment.

[0003] Currently, most ultra-long rebar cage lifting devices used in the industry are either fixed structures or require auxiliary tools for length adjustment. The length of the lifting ropes in traditional lifting devices is usually a preset fixed value. If a rebar cage of different lengths is encountered, the entire lifting device needs to be replaced or the length needs to be adjusted by disassembling and retying the lifting ropes. This operation is cumbersome and time-consuming, which seriously affects construction efficiency. At the same time, some adjustable lifting devices require special tools such as wrenches and jacks. During the adjustment process, multiple construction workers need to work together, which not only increases labor costs but also has the problem of insufficient adjustment accuracy. This can easily lead to inconsistent lengths at both ends of the lifting rope, resulting in uneven force on the rebar cage during lifting, which can cause deformation, displacement, and even lifting safety hazards. Therefore, a simple lifting device for ultra-long rebar cages is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a simple lifting tool for ultra-long steel cages to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A simple lifting device for an ultra-long steel cage includes a lifting frame. Two mounting brackets are fixedly installed on the top side of the lifting frame. Both mounting brackets are U-shaped. A circular hole is opened on one side of each mounting bracket. A linkage column is installed in each of the two circular holes. One end of each linkage column is rotatably connected to the inner wall of one side of each mounting bracket. A second bevel gear is fixedly connected to the other end of each linkage column. A lifting component is installed on the outer side of each linkage column. A fixing frame is fixedly installed on the top side of the lifting frame. A transmission component is installed inside the fixing frame. A drive component is installed on one side of the transmission component.

[0006] Preferably, the hoisting assembly includes two linkage columns, each with a winding wheel fixedly sleeved on its outer side, and ropes fixedly wound on each of the two winding wheels, with a fixing ring fixedly connected to the other end of each of the two ropes.

[0007] Preferably, threaded holes are provided on the bottom sides of both fixing rings, threaded posts are threaded into both threaded holes, clamps are rotatably connected to the top of both threaded posts, and handwheels are fixedly connected to the bottom of both threaded posts.

[0008] Preferably, the transmission assembly includes a fixed frame with circular holes on both sides, and a rotating column is provided in the two circular holes. Both ends of the rotating column are fixedly connected to a first bevel gear, and the two first bevel gears mesh with two second bevel gears respectively.

[0009] Preferably, the drive assembly includes two fixed plates fixedly installed on the top side of the hanger, a motor fixedly installed on one side of the right fixed plate, the output end of the motor rotatably passes through the right fixed plate and is fixedly connected to a rotating rod, and the other end of the rotating rod is rotatably connected to one side of the left fixed plate.

[0010] Preferably, a second synchronous pulley and a first synchronous pulley are fixedly sleeved on the outer sides of the rotating rod and the rotating column, respectively, and the second synchronous pulley and the first synchronous pulley share the same synchronous belt.

[0011] Preferably, a plurality of fixing blocks are fixedly installed on the top side of the hanger, and the top sides of the plurality of fixing blocks are fixedly connected to the same top plate, and the top side of the top plate is fixedly connected to a lifting ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The transmission and adjustment structure, consisting of a motor, rotating rod, second synchronous pulley, synchronous belt, first synchronous pulley, rotating column, first bevel gear, second bevel gear, linkage column, and winding wheel, enables rapid synchronous adjustment of rope length. Addressing the issues of fixed rope length in traditional lifting devices that require replacement or disassembly for adjustment, this device uses a motor-driven synchronous belt and bevel gear meshing to drive two winding wheels to rotate synchronously in opposite directions, directly extending or retracting the rope. No special auxiliary tools are needed; a single person can operate the device, significantly reducing preparation time for lifting steel cages of different lengths and effectively improving construction efficiency.

[0013] 2. The clamping structure, consisting of a fixed ring, threaded post, clamping plate, and handwheel, combined with the synchronous rope length adjustment function, effectively solves the problem of uneven force on the reinforcing bars caused by insufficient adjustment precision in traditional lifting tools. After the fixed ring is fitted onto both ends of the reinforcing bar, rotating the handwheel drives the threaded post to move the clamping plate, achieving a stable clamping of the reinforcing bar and preventing the fixed ring from falling off during lifting. At the same time, the motor-driven transmission structure ensures that the two winding wheels synchronously adjust the rope length, making the force on the lifting points at both ends of the reinforcing bar balanced, preventing deformation and displacement of the reinforcing bar, and eliminating the safety hazards caused by inconsistent rope lengths in traditional lifting tools. Attached Figure Description

[0014] Figure 1This is a three-dimensional perspective view of the present invention; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 The structure of this utility model Figure 2 Partial schematic diagram of section A; Figure 4 This is a schematic diagram of the rotating column part of the structure of this utility model.

[0015] In the diagram: 1. Hanger; 2. Fixing block; 3. Top plate; 4. Lifting ring; 5. Fixing frame; 6. Rotating column; 7. First bevel gear; 8. Mounting frame; 9. Linkage column; 10. Second bevel gear; 11. Winding reel; 12. Rope; 13. Fixing ring; 14. Threaded column; 15. Clamping plate; 16. Handwheel; 17. First synchronous pulley; 18. Fixing plate; 19. Motor; 20. Rotating rod; 21. Second synchronous pulley; 22. Synchronous belt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Refer to Figure 1-4A simple lifting device for an ultra-long steel cage includes a lifting frame 1. Two mounting brackets 8 are fixedly installed on the top side of the lifting frame 1. Both mounting brackets 8 are U-shaped, and each mounting bracket 8 has a circular hole on one side. A linkage column 9 is installed in each of the two circular holes. One end of each linkage column 9 is rotatably connected to the inner wall of one side of each mounting bracket 8, and the other end of each linkage column 9 is fixedly connected to a second bevel gear 10. Lifting components are installed on the outer side of each linkage column 9. A fixing frame 5 is fixedly installed on the top side of the lifting frame 1. A transmission component is installed inside the fixing frame 5, and a drive component is installed on one side of the transmission component. The transmission component includes both sides of the fixing frame 5. Both are provided with circular holes, and the same rotating column 6 is set in the two circular holes. The two ends of the rotating column 6 are fixedly connected to the first bevel gears 7. The two first bevel gears 7 mesh with the two second bevel gears 10 respectively. The drive assembly includes two fixed plates 18 fixedly installed on the top side of the hanger 1. A motor 19 is fixedly installed on one side of the right fixed plate 18. The output end of the motor 19 rotates through the right fixed plate 18 and is fixedly connected to a rotating rod 20. The other end of the rotating rod 20 is rotatably connected to one side of the left fixed plate 18. The outer sides of the rotating rod 20 and the rotating column 6 are respectively fixedly sleeved with a second synchronous pulley 21 and a first synchronous pulley 17. The second synchronous pulley 21 and the first synchronous pulley 17 share the same synchronous belt 22. A motor 19 is installed; when extra-long steel bars need to be hoisted, the motor 19 is started, driving the rotating rod 20, which is fixedly connected to the output end, to rotate clockwise. Because the second synchronous pulley 21 is fixedly sleeved on the outer side of the rotating rod 20, and the second synchronous pulley 21 and the first synchronous pulley 17 share the same synchronous belt 22, under the meshing transmission of the synchronous belt 22, the first synchronous pulley 17 will synchronously drive the rotating column 6 connected to it to rotate. Furthermore, because both ends of the rotating column 6 are fixedly connected to first bevel gears 7, and the two first bevel gears... 7 meshes with two second bevel gears 10 respectively. Therefore, under the meshing transmission of the two first bevel gears 7, the two second bevel gears 10 will synchronously drive the linkage column 9 connected to them to rotate, so that the winding wheels 11 fixedly sleeved on the outside of the two linkage columns 9 will rotate synchronously in opposite directions. During the synchronous rotation of the two winding wheels 11, the rope 12 can be extended. When the extended length is the same as the length of the steel bar, the motor 19 stops running. Then, continue to use the clamp 15 for fixation according to the above operation. The length of the two sets of ropes 12 can be freely adjusted, so that steel bars of different lengths can be hoisted.

[0018] Specifically, the hoisting assembly includes two linkage columns 9, each with a winding wheel 11 fixedly sleeved on its outer side. Ropes 12 are fixedly wound around each of the two winding wheels 11, and the other ends of the ropes 12 are fixedly connected to fixing rings 13. Each fixing ring 13 has a threaded hole on its bottom side, and a threaded post 14 is threaded into each of the two threaded holes. A clamping plate 15 is rotatably connected to the top of each of the two threaded posts 14, and a handwheel 16 is fixedly connected to the bottom of each of the two threaded posts 14. By using two fixing rings 13, when hoisting the reinforcing bar, the two fixing rings 13 are respectively sleeved on both ends of the reinforcing bar. After sleeved, personnel rotate the two handwheels 16 clockwise in sequence, causing the clamping plate 15, rotatably connected to the other end of the threaded post 14, to move towards one end of the reinforcing bar. As the handwheels 16 continue to rotate, the clamping plate 15 can securely clamp the reinforcing bar, preventing the fixing rings 13 from falling off during subsequent hoisting.

[0019] Specifically, multiple fixing blocks 2 are fixedly installed on the top side of the hanger 1, and the top side of the multiple fixing blocks 2 is fixedly connected to the same top plate 3. The top side of the top plate 3 is fixedly connected to a lifting ring 4. By setting the lifting ring 4, the hook on the machine can be hung in the lifting ring 4, so as to realize the hoisting and transfer of the steel bars.

[0020] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.

[0021] In use: When hoisting extra-long steel cages, first, the fixing ring 13 is fitted onto both ends of the steel bar. After the fitting is completed, the operator rotates the two handwheels 16 clockwise in sequence. The rotation of the handwheels 16 drives the threaded column 14 to move axially, which in turn drives the clamping plate 15 connected to the other end of the threaded column 14 to move closer to one side of the steel bar. As the handwheels 16 continue to rotate, the clamping plate 15 and the inner wall of the fixing ring 13 cooperate to form a clamping force on both ends of the steel bar, realizing a stable clamping of the steel bar and effectively preventing the fixing ring 13 from falling off during hoisting, thus ensuring hoisting safety. When hoisting extra-long steel cages of different lengths, the motor 19 is started. The output end of the motor 19 drives the fixedly connected rotating rod 20 to rotate clockwise. Since the outer side of the rotating rod 20 is fixedly fitted with the second synchronous wheel 21, and the second synchronous wheel 21 and the first synchronous wheel 17 are meshed and driven by the synchronous belt 22, Therefore, the first synchronous pulley 17 rotates synchronously with the second synchronous pulley 21, and drives the rotating column 6 fixedly connected to it to rotate synchronously. The two ends of the rotating column 6 are fixedly connected with the first bevel gear 7. The two first bevel gears 7 mesh with the corresponding second bevel gears 10. Under the transmission action of the first bevel gears 7, the two second bevel gears 10 synchronously drive the linkage column 9 fixedly connected to them to rotate, so that the winding wheel 11 fixedly sleeved on the outside of the two linkage columns 9 rotates synchronously in opposite directions. During the rotation of the winding wheel 11, the rope 12 is synchronously extended or retracted. When the extension length of the rope 12 matches the length of the steel cage to be hoisted, the motor 19 stops running. Then, the steel bar is fixed by the clamping plate 15 according to the above clamping operation. Through the synchronous adjustment function of the two sets of ropes 12, ultra-long steel bars of different lengths can be quickly adapted to achieve efficient and safe hoisting operations.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple lifting device for an ultra-long steel cage, comprising a lifting frame (1), characterized in that, Two mounting brackets (8) are fixedly installed on the top side of the hanger (1). Both mounting brackets (8) are U-shaped. A round hole is opened on one side of each mounting bracket (8). A linkage column (9) is installed in each of the two round holes. One end of each linkage column (9) is rotatably connected to the inner wall of one side of each mounting bracket (8). A second bevel gear (10) is fixedly connected to the other end of each linkage column (9). A hoisting component is installed on the outer side of each linkage column (9). A fixed frame (5) is fixedly installed on the top side of the hanger (1). A transmission component is installed inside the fixed frame (5). A drive component is installed on one side of the transmission component.

2. The simple lifting tool for an ultra-long steel cage according to claim 1, characterized in that, The hoisting assembly includes two linkage columns (9) with winding wheels (11) fixedly sleeved on the outside of each column. Ropes (12) are fixedly wound on each of the two winding wheels (11), and the other ends of the two ropes (12) are fixedly connected to a fixing ring (13).

3. A simple lifting tool for an ultra-long steel cage according to claim 2, characterized in that, Both fixed rings (13) have threaded holes on their bottom sides, and threaded posts (14) are threaded into both threaded holes. The top of each threaded post (14) is rotatably connected to a clamp (15), and the bottom of each threaded post (14) is fixedly connected to a handwheel (16).

4. The simple lifting tool for an ultra-long steel cage according to claim 1, characterized in that, The transmission assembly includes a fixed frame (5) with round holes on both sides, and a rotating column (6) is provided in the two round holes. The two ends of the rotating column (6) are fixedly connected to a first bevel gear (7), and the two first bevel gears (7) mesh with two second bevel gears (10) respectively.

5. A simple lifting tool for an ultra-long steel cage according to claim 4, characterized in that, The drive assembly includes two fixed plates (18) fixedly installed on the top side of the hanger (1). A motor (19) is fixedly installed on one side of the right fixed plate (18). The output end of the motor (19) rotates through the right fixed plate (18) and is fixedly connected to a rotating rod (20). The other end of the rotating rod (20) is rotatably connected to one side of the left fixed plate (18).

6. A simple lifting tool for an ultra-long steel cage according to claim 5, characterized in that, The outer sides of the rotating rod (20) and the rotating column (6) are respectively fixedly sleeved with a second synchronous pulley (21) and a first synchronous pulley (17), and the second synchronous pulley (21) and the first synchronous pulley (17) share the same synchronous belt (22).

7. A simple lifting tool for an ultra-long steel cage according to claim 1, characterized in that, The top side of the hanger (1) is fixedly installed with multiple fixing blocks (2), the top side of the multiple fixing blocks (2) is fixedly connected to the same top plate (3), and the top side of the top plate (3) is fixedly connected to a lifting ring (4).

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