A lifting device for lifting a steel reinforcement cage as a whole

Abstract

This utility model relates to a lifting device for hoisting a reinforcing steel cage as a whole. It includes fixed rods, fixed plates, support plates, and hooks. Two fixed rods are horizontally arranged and parallel to each other, and are fixedly connected by a fixing block. The fixed plates are Z-shaped, with their tops fixedly connected to the fixed rods, and the horizontal sections at the bottom of the two fixed plates extending in opposite directions. The support plate is slidably disposed at the bottom of the fixed plates. The support plate slides towards the bottom of the reinforcing steel cage until it abuts against the bottom surface of the cage, and then slides away from the cage until it detaches from it. The hook includes a steel rope and a hook body. The hook body is fixed to the fixed rods by the steel rope and hooks onto the reinforcing steel bars at appropriate positions within the cage. This technical solution uses a support plate and hooks to hoist the reinforcing steel cage, providing overall support and positioning, and improving the stability of the reinforcing steel cage during hoisting and movement.

Description

Technical Field

[0001] This utility model relates to the field of lifting tools, and in particular to a lifting tool for the overall lifting of a steel reinforcement frame. Background Technology

[0002] With the increasing mechanization of modern bridge construction, hydraulic system formwork construction is often used in the construction of precast box girders in order to speed up the construction progress. Reinforcing steel processing and installation are key processes to ensure the quality and progress of box girders.

[0003] In related technologies, a Chinese utility model patent discloses a lifting device for hoisting the reinforcing steel skeleton of a precast beam top slab as a whole, including a hook plate and an inclined frame. The hook plate is fixedly installed on the inclined frame. Multiple hooks are integrally cut and formed on the hook plate, and the hooks are evenly distributed along the length of the hook plate. The hooks hook each reinforcing steel bar to achieve the fixation between the lifting device and the reinforcing steel skeleton as a whole. The top of the inclined frame is provided with a lifting lug, and the lifting hook of the hoisting part of the hoist is fixed to the lifting lug by steel cable and lock.

[0004] Regarding the aforementioned related technologies, the inventors believe that while the entire steel reinforcement cage is connected to the steel reinforcement frame via multiple dispersed hooks, the steel reinforcement cage only has tension at the top and no support at the bottom. However, due to the large overall weight of the steel reinforcement cage, there is a possibility of breakage when the crane uses the hooks of the lifting device, and the overall lifting process of the steel reinforcement cage is also unstable. Utility Model Content

[0005] To solve the above-mentioned technical problems, this application provides a lifting tool for the overall hoisting of a steel reinforcement cage.

[0006] The lifting tool for integral hoisting of a steel reinforcement cage provided in this application adopts the following technical solution:

[0007] A lifting device for hoisting a steel reinforcement cage includes a fixing rod, a fixing plate, a support plate, and a hook. Two fixing rods are horizontally arranged and parallel to each other, and the two fixing rods are fixedly connected by a fixing block.

[0008] The fixing plate is Z-shaped, and the top of the fixing plate is fixedly connected to the fixing rod. The horizontal sections at the bottom of the two fixing plates extend in a direction away from each other, and the fixing plates on the two fixing rods are symmetrically arranged.

[0009] The support plate is slidably disposed at the bottom of the fixed plate. The support plate slides towards the bottom of the steel reinforcement cage and abuts against the bottom surface of the steel reinforcement cage. The support plate slides away from the steel reinforcement cage until it detaches from the steel reinforcement cage.

[0010] The hook includes a steel rope and a hook body. The top of the steel rope is fixedly connected to a fixed rod, and the hook body is fixedly connected to the bottom of the steel rope. The hook body hooks the steel bars at appropriate positions in the steel bar cage.

[0011] Furthermore, multiple fixing plates are arranged along the axial direction of the fixing rod, and adjacent fixing plates on the same fixing rod are fixedly connected by a connecting plate; the fixing blocks are arranged between adjacent fixing plates and on the side where the two fixing plates furthest apart are far apart from each other.

[0012] Furthermore, lifting lugs are provided on the top surfaces of the two farthest fixing blocks on the same fixing rod and on the top surface of the middle fixing block.

[0013] Furthermore, a sliding groove is provided on the vertical section of the fixing plate for the support plate to slide, and the bottom surface of the support plate is in contact with the top surface of the bottom horizontal section of the fixing plate.

[0014] Furthermore, a connecting block is fixedly connected to the bottom surface of the support plate, and a connecting groove for the connecting block to slide is provided in the middle of the horizontal section of the bottom of the fixed plate. The bottom of the connecting block extends below the horizontal section of the bottom of the fixed plate, and a telescopic cylinder is fixedly installed on the bottom surface of the horizontal section of the bottom of the fixed plate. The piston rod of the telescopic cylinder is fixedly connected to the connecting block.

[0015] Furthermore, a support frame is provided below the telescopic cylinder. The support frame is in the shape of a horizontal C. Both ends of the support frame are fixedly connected to the bottom surface of the bottom horizontal section of the fixing plate. The cylinder body of the telescopic cylinder is attached to the top surface of the middle section of the support frame.

[0016] Furthermore, each of the fixed plates is provided with a limiting plate on its vertical section. The limiting plate is inclined and its top is fixedly connected to the vertical section of the fixed plate. The bottom of the limiting plate is inclined away from the vertical section of the fixed plate and has rounded corners that abut against the top surface of the support plate.

[0017] Furthermore, an anti-detachment plate is provided at one end of the support plate away from the vertical section of the fixed plate. The size of the anti-detachment plate is larger than the size of the sliding groove, and the bottom surface of the anti-detachment plate is in contact with the top surface of the bottom of the fixed plate.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] The steel reinforcement cage is hoisted by using a support plate and hooks to support and position the entire steel reinforcement cage, thereby improving the overall stability of the steel reinforcement cage during hoisting and movement. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of a lifting device for hoisting a steel reinforcement cage according to an embodiment of this application.

[0021] Figure 2 This is a structural schematic diagram used to illustrate the fixing plate and the support plate in the embodiments of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Fixing rod; 11. Fixing block; 2. Fixing plate; 21. Slide groove; 22. Connecting groove; 3. Support plate; 31. Connecting block; 4. Hook; 41. Steel rope; 42. Hook body; 5. Lifting lug; 6. Telescopic cylinder; 7. Support frame; 8. Limiting plate; 9. Anti-detachment plate. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] This utility model discloses a lifting tool for the overall hoisting of a steel reinforcement frame.

[0025] Reference Figure 1-2 The hoisting equipment for the overall hoisting of the steel reinforcement cage includes a fixed rod 1, a fixed plate 2, a support plate 3, and a hook 4. Two fixed rods 1 are set horizontally and parallel to each other, and the two fixed rods 1 are fixedly connected by a fixed block 11.

[0026] The fixing plate 2 is Z-shaped, and the top of the fixing plate 2 is fixedly connected to the fixing rod 1. The horizontal sections at the bottom of the two fixing plates 2 extend in a direction away from each other, and the fixing plates 2 on the two fixing rods 1 are symmetrically arranged.

[0027] Multiple fixing plates 2 are arranged along the axial direction of the fixing rod 1. Adjacent fixing plates 2 on the same fixing rod 1 are fixedly connected by connecting plates. Fixing blocks 11 are arranged between adjacent fixing plates 2 and on the side where the two fixing plates 2 furthest apart are far apart. Compared with a single fixing plate 2 arranged along the axial direction of the fixing rod 1, the combination of connecting blocks 31 and fixing plates 2 can reduce the weight of the fixing frame.

[0028] Lifting lugs 5 are provided on the top surfaces of the two farthest fixed blocks 11 on the same fixed rod 1 and on the top surface of the middle fixed block 11. When the crane lifts the steel reinforcement skeleton with the lifting tool, the steel cable passes through the three lifting lugs 5 and the two ends of the steel cable pass out from the lifting lugs 5 at both ends. The two ends of the steel cable have lock buckles, and the hook of the lifting part of the crane passes through two lock buckles at the same time.

[0029] The support plate 3 is slidably disposed at the bottom of the fixed plate 2. The support plate 3 slides towards the bottom of the steel reinforcement cage and abuts against the bottom surface of the steel reinforcement cage. The support plate 3 slides away from the steel reinforcement cage until it detaches from the steel reinforcement cage.

[0030] The vertical section of the fixed plate 2 is provided with a sliding groove 21 for the support plate 3 to slide. The bottom surface of the support plate 3 is in contact with the top surface of the bottom horizontal section of the fixed plate 2. The sliding groove 21 provides a limiting guide for the sliding of the support plate 3.

[0031] A connecting block 31 is fixedly connected to the bottom surface of the support plate 3. A connecting groove 22 for the connecting block 31 to slide is provided in the middle of the horizontal section of the bottom of the fixed plate 2. The bottom of the connecting block 31 extends below the horizontal section of the bottom of the fixed plate 2. A telescopic cylinder 6 is fixedly installed on the bottom surface of the horizontal section of the bottom of the fixed plate 2. The piston rod of the telescopic cylinder 6 is fixedly connected to the connecting block 31. When the piston rod of the telescopic cylinder 6 extends, it pushes the support plate 3 toward the direction close to the steel reinforcement cage. The opening and closing of the telescopic cylinder 6 can be controlled by a remote control. The remote control has an open button and a close button. After pressing the open button, the piston rods of all telescopic cylinders 6 extend synchronously. After pressing the close button, the piston rods of all telescopic cylinders 6 retract synchronously.

[0032] The space between the two fixing rods 1, the fixing plate 2, and the support plate 3 can accommodate the steel reinforcement cage.

[0033] In order to provide support for the telescopic cylinder 6, a support frame 7 is provided below the telescopic cylinder 6. The support frame 7 is in the shape of a "horizontal C". The two ends of the support frame 7 are fixedly connected to the bottom surface of the bottom horizontal section of the fixing plate 2. The cylinder body of the telescopic cylinder 6 is in contact with the top surface of the middle section of the support frame 7.

[0034] Each fixed plate 2 has a limiting plate 8 on its vertical section. The limiting plate 8 is inclined, with its top fixedly connected to the vertical section of the fixed plate 2 and its bottom inclined away from the vertical section of the fixed plate 2. The bottom of the limiting plate 8 is rounded and abuts against the top surface of the support plate 3. When the support plate 3 slides, the bottom of the limiting plate 8 remains in contact with the top surface of the support plate 3, preventing the support plate 3 from tilting up and improving the supporting force of the support plate 3.

[0035] An anti-detachment plate 9 is provided at one end of the support plate 3 away from the vertical section of the fixed plate 2. The size of the anti-detachment plate 9 is larger than the size of the slide groove 21. The bottom surface of the anti-detachment plate 9 is in contact with the top surface of the bottom of the fixed plate 2 to prevent the support plate 3 from detaching from the slide groove 21.

[0036] The hook 4 includes a steel rope 41 and a hook body 42. The top of the steel rope 41 is fixedly connected to the fixed rod 1, and the hook body 42 is fixedly connected to the bottom of the steel rope 41. The hook body 42 hooks the steel bars at appropriate positions in the steel reinforcement cage, thus tauting the steel rope 41. Multiple hooks 4 are arranged along the axial direction of the fixed rod 1 to improve the uniformity of force distribution between the steel reinforcement cage and the hook 4.

[0037] The implementation principle of a lifting tool for integral hoisting of a steel reinforcement cage according to an embodiment of this application is as follows:

[0038] First, cover the lifting device over the steel frame from top to bottom. At this time, the support plate 3 is separated from the steel frame. Then, lift the steel frame and use the remote control to extend the piston rods of all telescopic cylinders 6, so that the support plate 3 slides to the bottom of the steel frame and abuts against the bottom surface of the steel frame.

[0039] When the crane lifts the steel reinforcement cage using the lifting device, the steel cable passes through three lifting lugs 5, and the two ends of the steel cable pass out from the lifting lugs 5 at both ends. The two ends of the steel cable have locks, and the hook of the lifting part of the crane passes through two locks at the same time.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A lifting device for lifting a steel reinforcement cage as a unit, characterised in that: It includes a fixing rod, a fixing plate, a support plate, and a hook. Two fixing rods are horizontally arranged and parallel to each other. The two fixing rods are fixedly connected by a fixing block. The fixing plate is Z-shaped, and the top of the fixing plate is fixedly connected to the fixing rod. The horizontal sections at the bottom of the two fixing plates extend in a direction away from each other, and the fixing plates on the two fixing rods are symmetrically arranged. The support plate is slidably disposed at the bottom of the fixed plate. The support plate slides towards the bottom of the steel reinforcement cage and abuts against the bottom surface of the steel reinforcement cage. The support plate slides away from the steel reinforcement cage until it detaches from the steel reinforcement cage. The hook includes a steel rope and a hook body. The top of the steel rope is fixedly connected to a fixed rod, and the hook body is fixedly connected to the bottom of the steel rope. The hook body hooks the steel bars at appropriate positions in the steel bar cage.

2. The lifting device for the integral lifting of a reinforcing cage according to claim 1, characterised in that: Multiple fixing plates are arranged along the axial direction of the fixing rod, and adjacent fixing plates on the same fixing rod are fixedly connected by a connecting plate; the fixing blocks are arranged between adjacent fixing plates and on the side where the two fixing plates furthest apart are far apart from each other.

3. The lifting device for the integral lifting of reinforcement cages according to claim 2, characterized in that: Lifting lugs are provided on the top surfaces of the two farthest fixed blocks on the same fixed rod and on the top surface of the middle fixed block.

4. The lifting device for the integral lifting of reinforcement cages according to claim 1, characterized in that: The vertical section of the fixed plate has a sliding groove for the support plate to slide, and the bottom surface of the support plate is in contact with the top surface of the bottom horizontal section of the fixed plate.

5. The lifting device for the integral lifting of reinforcement cages according to claim 1, characterized in that: A connecting block is fixedly connected to the bottom surface of the support plate. A connecting groove for the connecting block to slide is opened in the middle of the horizontal section of the bottom of the fixed plate. The bottom of the connecting block extends to the bottom of the horizontal section of the bottom of the fixed plate. A telescopic cylinder is fixedly installed on the bottom surface of the horizontal section of the bottom of the fixed plate. The piston rod of the telescopic cylinder is fixedly connected to the connecting block.

6. The lifting device for lifting the steel reinforcement cage as claimed in claim 5, wherein: A support frame is provided below the telescopic cylinder. The support frame is in the shape of a horizontal C. Both ends of the support frame are fixedly connected to the bottom surface of the bottom horizontal section of the fixing plate. The cylinder body of the telescopic cylinder is attached to the top surface of the middle section of the support frame.

7. The lifting device for the integral lifting of reinforcement cages according to claim 1, characterized in that: Each of the fixed plates has a limiting plate on its vertical section. The limiting plate is inclined and its top is fixedly connected to the vertical section of the fixed plate. The bottom of the limiting plate is inclined away from the vertical section of the fixed plate and has rounded corners that abut against the top surface of the support plate.

8. The lifting device for the integral lifting of reinforcement cages according to claim 1, characterized in that: An anti-detachment plate is provided at one end of the support plate away from the vertical section of the fixed plate. The size of the anti-detachment plate is larger than the size of the sliding groove, and the bottom surface of the anti-detachment plate is in contact with the top surface of the bottom of the fixed plate.

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