A reinforcing cage hoisting device
By designing a rebar cage hoisting device, the uniform force on the rebar cage is achieved by using components such as circular plates and positioning components, which solves the problems of ring bar deformation and structural loosening during hoisting, and improves hoisting stability and pouring quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN RAILWAY CONSTR CO LTD
- Filing Date
- 2026-01-05
- Publication Date
- 2026-04-14
AI Technical Summary
The existing method of hoisting steel cages results in uneven hoisting points, which can easily cause deformation of the ring reinforcement, loosening of the binding points and structural loosening, thus reducing the stability of hoisting.
A rebar cage hoisting device is adopted, which uses components such as circular plates, positioning components, drive mechanisms and vertical rods to hoist the rebar cage stably through evenly distributed stress points, clamps and bearing rods, ensuring that the ring bars and vertical bars are subjected to uniform stress and preventing deformation and loosening.
This effectively prevents deformation and loosening of the reinforcing cage during hoisting, improves hoisting stability and overall structural integrity, and ensures the stability and pouring quality of the reinforcing cage during hoisting and lowering.
Smart Images
Figure CN121470337B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of hoisting technology, and in particular relates to a rebar cage hoisting device. Background Technology
[0002] In bridge pier construction, it is usually necessary to first drill holes at the pier location, then vertically hoist a prefabricated cylindrical steel reinforcement cage into the hole, and finally pour concrete. As the main load-bearing skeleton of the pier, the stability and integrity of the steel reinforcement cage during hoisting directly affect the subsequent pouring quality and structural safety.
[0003] Currently, the most common method for hoisting rebar cages involves using lifting equipment with hooks to directly attach the cage to the top or side ring bars. While this method is simple to operate, the rebar cage has a large self-weight, and the number of lifting points is usually small and unevenly distributed. This leads to concentrated and uneven stress on the rebar cage during hoisting, especially during lifting and lowering. Local lifting points may bear excessive loads, easily causing deformation of the ring bars or loosening of the binding points, resulting in a loose overall structure and altered geometry of the rebar cage. Furthermore, uneven stress can increase the swaying amplitude of the rebar cage during transport, reducing the stability of the hoisting process. Summary of the Invention
[0004] To address the shortcomings of the prior art, this application provides a rebar cage hoisting device to solve the problems of deformation and structural loosening during rebar cage hoisting, and to effectively improve the stability of hoisting.
[0005] To achieve the above objectives, the present invention employs the following techniques:
[0006] A steel cage hoisting device for hoisting vertical cylindrical steel cages, comprising:
[0007] A circular plate with multiple circumferentially arrayed positioning grooves along its radial edge, a lifting block above the circular plate and at least three circumferentially arrayed lifting lugs along its edge for connection to the lifting block via a lifting rope;
[0008] Multiple positioning components are provided on the top surface of the circular plate and correspond to each positioning groove. Each component includes a movable block that moves along the length of the positioning groove. A push rod parallel to the length of the positioning groove slides through the block along the radial direction of the circular plate. A V-shaped plate is provided at one end of the push rod facing the axis of the circular plate, with its opening facing the axis of the circular plate. A support plate is provided at the other end. A first spring is sleeved on the push rod and is connected between the support plate and the movable block.
[0009] The drive mechanism, located on the circular plate, is used to drive all moving blocks to move synchronously in a centripetal or centrifugal direction.
[0010] Multiple vertical rods are vertically positioned below the circular plate and correspond to each positioning slot. The upper end of the vertical rod is connected to a movable block. A pair of vertical clamping plates are provided on the side of the vertical rod facing the axis of the circular plate, located below the positioning slot and facing the length direction of the corresponding push rod. Multiple pairs of vertically arrayed bearing rods are also provided on one side of the vertical rod, located below the clamping plates and facing the length direction of the corresponding push rod.
[0011] Specifically, when the bottom surface of the circular plate abuts against the top ring reinforcement of the steel cage, the top surface of the clamping plate is flush with the top ring reinforcement, and the top surfaces of each pair of bearing rods are flush with the remaining ring reinforcements; when the driving mechanism drives the movable block to move centripetally until the two inner sides of the V-shaped plate abut against the vertical reinforcement, the axis of the circular plate coincides with the axis of the steel cage, and the clamping plate and bearing rods are directly opposite the vertical reinforcements; when the centripetal driving of the movable block continues, the clamping plate is inserted below the top ring reinforcement and the vertical reinforcement enters between the two clamping plates, and each bearing rod is inserted below the corresponding ring reinforcement.
[0012] The beneficial effects of this invention are as follows:
[0013] 1. When the hoisting device hoists the steel cage, the top ring bar of the steel cage is supported by the top surface of the clamp plate, and the remaining ring bars are supported by each bearing rod. The stress points on each ring bar are arranged in a circular array around its circumference, so the stress is uniform and the large number of stress points can effectively distribute the large self-weight of the steel cage, effectively avoiding the problem of ring bar deformation.
[0014] 2. During hoisting, the clamps can clamp the vertical bars, so that the vertical bars and the ring bars are subjected to force as a whole and remain relatively stationary during the hoisting process. This effectively reduces the impact of the self-weight of the vertical bars on the binding points of the vertical bars and the ring bars, thereby effectively solving the problems of loose overall structure and changes in geometric shape of the steel cage. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the device according to an embodiment of this application.
[0016] Figure 2 yes Figure 1 A magnified view of part A in the middle.
[0017] Figure 3 yes Figure 1 A magnified view of part B in the middle.
[0018] Figure 4 This is a top view of the device in this embodiment.
[0019] Figure 5 This is a schematic diagram of the structure of the top surface of the circular plate of the device in this embodiment.
[0020] Figure 6 yes Figure 5 A magnified view of a portion of C.
[0021] Figure 7 This is a schematic diagram of the structure of the bottom surface of the circular plate of the device in this embodiment.
[0022] Figure 8 yes Figure 7 A magnified view of a portion of D.
[0023] Figure 9 This is a structural schematic diagram of the steel reinforcement cage.
[0024] Reference numerals: 1-Circular plate, 11-Positioning groove, 12-Lifting block, 13-Lifting lug, 14-Matching block, 15-V-groove, 16-Slide rod, 17-Steel rope, 2-Positioning assembly, 21-Moving block, 22-Push rod, 23-V-shaped plate, 24-Support plate, 25-First spring, 3-Drive mechanism, 31-Motor, 32-Rotating plate, 33-Arc-shaped hole, 34-Guide rod, 4-Vertical rod, 41-Clamping plate, 411-Inclined surface, 42-Bearing rod, 43-Mounting plate, 44-Mounting rod, 45-Second spring, 46-Anti-slip structure, 47-Horizontal stripe, 5-Reinforcing cage, 51-Ring reinforcement, 52-Vertical reinforcement. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.
[0026] Example 1
[0027] This application provides a rebar cage hoisting device for hoisting steel cages. Figure 9 The cylindrical steel cage 5 shown is hoisted. In this embodiment, the steel cage 5 is a cylindrical skeleton structure composed of six vertical bars 52 and five ring bars 51. The six vertical bars 52 are steel bars arranged parallel to each other along the axial direction of the steel cage 5 and arranged in a circular array to form the longitudinal load-bearing body of the steel cage 5. The five ring bars 51 are ring-shaped steel bars arranged in a circular array along the axial direction of the steel cage 5. They surround all the vertical bars 52 and are tied and fixed with steel wire ropes at the intersection points with each vertical bar 52, which play a role in restraining the vertical bars 52 and maintaining the overall shape of the skeleton.
[0028] Specifically, such as Figures 1-8 As shown, the hoisting device in this embodiment includes: a circular plate 1, six sets of positioning components 2, a drive mechanism 3, and six vertical rods 4, etc.
[0029] Among them, such as Figure 1 and Figure 5As shown, the circular plate 1 has six positioning slots 11 arranged in a circular array around its circumference along its edge, which are used to vertically pass through the corresponding vertical ribs 52; a lifting block 12 is provided above the middle of the circular plate 1 for connecting to the lifting end of the lifting equipment; the circular plate 1 has three lifting lugs 13 arranged in a circular array around its circumference along its edge, and one end of three steel ropes 17 of equal length is connected to the lifting block 12, and the other end is hooked to the lifting lugs 13 by a hook, so that the circular plate 1 is always in a horizontal and stable state during hoisting.
[0030] like Figure 1 , Figure 3 , Figure 5 , Figure 6 As shown, six sets of positioning components 2 are disposed on the top surface of the circular plate 1 and correspond to each positioning groove 11 respectively. Each set of positioning components 2 includes a movable block 21 that moves along the length direction of the corresponding positioning groove 11. The distance between each movable block 21 and the axis of the circular plate 1 is equal. A push rod 22 parallel to the length direction of the corresponding positioning groove 11 slides through the movable block 21 along the radial direction of the circular plate 1. A V-shaped plate 23 is provided at the inner end of the push rod 22, that is, at the end facing the axis of the circular plate 1. The two inner sides of the V-shaped plate 23 are arranged parallel to the axis of the circular plate 1, and the opening of the V-shaped plate 23 is arranged directly opposite the axis of the circular plate 1. A support plate 24 is provided at the outer end of the push rod 22, that is, at the other end. A first spring 25 is sleeved on the push rod 22 and is connected between the support plate 24 and the movable block 21.
[0031] like Figure 1 As shown, the drive mechanism 3 is mounted on the circular plate 1 and is used to drive all the movable blocks 21 to move synchronously toward the axis of the circular plate 1 and synchronously away from the axis of the circular plate 1.
[0032] like Figures 1-3 As shown, the vertical rod 4 is a rectangular rod, and six vertical rods 4 are vertically arranged below the circular plate 1 and correspond to each positioning groove 11 respectively. The upper end of the vertical rod 4 passes through the positioning groove 11 and is connected to the movable block 21. A pair of vertical clamping plates 41 are provided on the side of the vertical rod 4 facing the axis of the circular plate 1. They are located below the positioning groove 11 and arranged in the length direction of the corresponding push rod 22. Five pairs of bearing rods 42 are also provided on the side of the vertical rod 4 facing the axis of the circular plate 1. Each pair of bearing rods 42 is located below the clamping plate 41 and arranged in the length direction of the corresponding push rod 22. The distance between the clamping plate 41 and its adjacent bearing rod 42 and the distance between two adjacent pairs of bearing rods 42 are equal to the distance between adjacent ring reinforcements 51.
[0033] like Figures 1-7As shown, when the bottom surface of the circular plate 1 abuts against the top ring bar 51 of the reinforcing cage 5, the top surface of the clamping plate 41 is flush with the top ring bar 51, and the top surfaces of each pair of bearing rods 42 are flush with the remaining ring bars 51 respectively; when the driving mechanism 3 drives the movable block 21 to move centripetally until the two inner sides of the V-shaped plate 23 abut against the vertical bars, the axis of the circular plate 1 coincides with the axis of the reinforcing cage 5, and the clamping plate 41 and the bearing rods 42 are respectively facing the vertical bars 52; when the movable block 21 continues to be driven centripetally, the clamping plate 41 is inserted below the top ring bar 51 and the vertical bars 52 enter between the two clamping plates 41, and each bearing rod 42 is inserted below the corresponding ring bar and the vertical bars 52 enter between the corresponding two bearing rods 42.
[0034] The working principle of the hoisting device will be explained below in conjunction with the above structure:
[0035] Pre-booking stage: such as Figures 1-6 As shown, the lifting end of the hoisting equipment moves the lifting block 12 directly above the vertical cylindrical steel cage 5 fixed by the fixing frame. Three steel cables 17 horizontally suspend the circular plate 1 directly above the steel cage 5. The lifting end of the hoisting equipment rotates the lifting block 12 so that each positioning groove 11 on the circular plate 1 is aligned vertically with each vertical bar 52 of the steel cage 5. At the same time, the drive mechanism 3 drives each movable block 21 to move away from the axis of the circular plate 1, and drives the V-shaped plate 23 away from the bottom of the corresponding positioning groove 11, that is, opens the channel for the vertical bar 52 to pass vertically through the positioning groove 11, effectively preventing the vertical bar 52 from colliding with the V-shaped plate 23 and pushing... The movement interference between rods 22 improves the reliability of the hoisting device; then the lifting end of the hoisting equipment lowers the lifting block 12, and the circular plate 1 descends synchronously with the lifting block 12. Each vertical bar 52 passes through the corresponding positioning groove 11 and is located between the positioning groove 11 and the corresponding V-shaped plate 23; the lifting block 12 continues to descend so that the bottom surface of the circular plate 1 abuts against the top ring bar 51 of the steel cage 5. At this time, the pre-positioning of the circular plate 1, the clamping plate 41 and the bearing rod 42 is completed, that is, the axis of the circular plate 1 is parallel to the axis of the steel cage 5, the top surface of the clamping plate 41 is flush with the top ring bar 51, and the top surfaces of each pair of bearing rods 42 are flush with the remaining ring bars 51 respectively.
[0036] Secondary positioning stage: such as Figures 1-7As shown, after pre-positioning, the bottom surface of the circular plate 1 maintains sliding contact with the top ring rib 51. The drive mechanism 3 drives each movable block 21 to move synchronously toward the axis of the circular plate 1. One side of each V-shaped plate 23 first abuts against the corresponding vertical rib 52. As the drive mechanism 3 continues to drive each movable block 21 to move centripetally, the push rod 22 slides relative to the movable block 21, the first spring 25 is stretched, and the first spring 25 elastically supports the V-shaped plate 23. One side of the V-shaped plate 23 will abut against the vertical rib 52 and move. The vertical rib 52 moves relative to the vertical rib 52. Within the included angle of the V-shaped plate 23, the vertical rib 52 provides a reaction force to the V-shaped plate 23, causing the circular plate 1 to slide horizontally, thereby gradually causing the axis of the circular plate 1 to coincide with the axis of the reinforcing cage 5; when the driving mechanism 3 continues to drive each movable block 21 to move centripetally until both inner sides of each V-shaped plate 23 abut against the corresponding vertical rib 52 and each first spring 25 remains static, the secondary positioning is completed, that is, the axis of the circular plate 1 coincides with the axis of the reinforcing cage 5, and the clamping plate 41 and the bearing rod 42 are located outside the ring rib 51 and respectively facing the corresponding vertical rib 52.
[0037] Coordination phase: such as Figures 1-6 As shown, after the secondary positioning is completed, the drive mechanism 3 continues to drive each movable block 21 to move centripetally, the push rod 22 slides relative to the movable block 21, the first spring 25 continues to stretch, the two inner sides of the V-shaped plate 23 remain in contact with the corresponding vertical rib 52, each movable block 21 drives each vertical rod 4 to move synchronously toward the axis of the circular plate 1 until the clamping plate 41 is inserted below the top ring rib 51 and the vertical rib 52 enters between the two clamping plates 41, each bearing rod 42 is inserted below the corresponding ring rib 51 and the vertical rib 52 enters between the corresponding two bearing rods 42. At this time, the drive mechanism 3 stops and holds the movable block 21 to complete the mating stage. The top ring rib 51 is supported by the top surface of the clamping plate 41, and the remaining ring ribs 51 are supported by the corresponding bearing rods 42 respectively. Each pair of clamping plates 41 clamps the corresponding vertical rib 52.
[0038] During the hoisting phase: The lifting end of the hoisting equipment drives the lifting block 12 upward, simultaneously releasing the fixing frame. The circular plate 1 moves upward with the lifting block 12, causing each vertical rod 4 to move upward. The top surface of the clamping plate 41 supports the top ring reinforcement 51, and each supporting rod 42 supports the remaining ring reinforcement 51. The stress points on each ring reinforcement 51 are arranged in a circular array around its circumference, resulting in uniform stress. The numerous stress points effectively distribute the large self-weight of the steel cage 5, effectively preventing the deformation of the ring reinforcement 51. At the same time, the clamping plate 41 clamps the vertical reinforcement 52, ensuring that the vertical reinforcement 52 and the ring reinforcement 51 are subjected to overall force and remain relatively stationary during hoisting. This effectively reduces the impact of the self-weight of the vertical reinforcement 52 on its binding points with the ring reinforcement 51, thereby effectively solving the problem of steel cage deformation. The problem of loose overall structure and altered geometry of the reinforcing cage 5 is addressed. In addition, during hoisting, the first spring 25 always keeps the two inner sides of the V-shaped plate 23 tightly against the corresponding vertical reinforcement 52 to restrict the horizontal movement of the reinforcing cage 5. The vertical movement of the reinforcing cage 5 is restricted by the circular plate 1 and the bearing rod 42, so that the reinforcing cage 5 maintains a stable vertical posture during hoisting, effectively improving the hoisting stability of the hoisting device. It also facilitates the placement of the reinforcing cage 5 into the hole of the pier, effectively improving the operational convenience of the hoisting device.
[0039] Lowering stage: The lifting end of the hoisting equipment hoists the lifting block 12 above the pouring hole and aligns the reinforcing cage 5 with the pouring hole. Then, the reinforcing cage 5 is lowered. Due to the stable hoisting structure of the reinforcing cage 5, it can effectively avoid swaying during the lowering process, which could cause the reinforcing cage 5 to collide with the inner wall of the pouring hole. This effectively ensures that the overall structure of the reinforcing cage 5 does not deform, thereby improving the pouring quality. When the hoisting device separates from the reinforcing cage 5, the motor 31 simply drives the movable block 21 away from the axis of the circular plate 1, causing the V-shaped plate 23 to separate from the vertical reinforcement 52. The clamping plate 41 opens and moves away from the vertical reinforcement 52, and each bearing rod 42 moves away from the vertical reinforcement 52 until the clamping plate 41 and the bearing rod 42 leave the area below the ring reinforcement 51. At this point, the hoisting device separates from the reinforcing cage 5.
[0040] Specifically, such as Figure 5 and Figure 6 As shown, six pairs of sliding rods 16 are arranged in a circular array around the top surface of the circular plate 1. Each pair of sliding rods 16 is located on both sides of the corresponding positioning groove 11 and arranged along its length. The movable block 21 slides through the corresponding pair of sliding rods 16. Through the guiding effect of the sliding rods 16 on the movable block 21, the movable block 21 runs stably, thereby ensuring that the clamping plate 41 and the bearing rod 42 on the vertical rod 4 can stably cooperate with the reinforcing cage 5, thus ensuring the reliability of the hoisting device.
[0041] Example 2
[0042] As a further implementation of the above embodiment 1, such as Figures 1-4As shown, the drive mechanism 3 includes a motor 31 fixed to the bottom of the circular plate 1, whose drive end coaxially passes through the circular plate 1 and is coaxially connected to a rotating plate 32 located above the circular plate 1; the rotating plate 32 has six arc-shaped holes 33 arranged in a circular array around the circular plate 1, the extension direction of each arc-shaped hole 33 is the circumferential tangent direction around the axis of the circular plate 1, the center of curvature of each arc-shaped hole 33 is offset from the axis of the circular plate 1, and the distance between the outer end of each arc-shaped hole 33 and the axis of the circular plate 1 is greater than the distance between the inner end and the axis of the circular plate 1; the top surface of each movable block 21 is provided with a guide rod 34 perpendicular to the circular plate 1, and each guide rod 34 is respectively inserted into the corresponding arc-shaped hole 33, and the outer wall of the guide rod 34 is always in sliding contact with the inner wall of the arc-shaped hole 33.
[0043] When the motor 31 drives the rotating plate 32 to rotate in the convex direction of the arc-shaped hole 33, the guide rod 34 moves along the arc-shaped hole 33 to its outer end. The inner wall of the arc-shaped hole 33 acts on the guide rod 34, causing the corresponding movable block 21 to move away from the axis of the circular plate 1. When the motor 31 drives the rotating plate 32 to rotate in the concave direction of the arc-shaped hole, the guide rod 34 moves along the arc-shaped hole 33 to its inner end. The inner wall of the arc-shaped hole 33 acts on the guide rod 34, causing the corresponding movable block 21 to move towards the axis of the circular plate 1. By setting the rotating plate 32 and cooperating with the arc-shaped hole 33 and the guide rod 34, the rotational motion of the rotating plate 32 can be converted into synchronous centripetal or centrifugal motion of each movable block 21. This allows the guide rod 34 to obtain a larger radial displacement at the same rotation angle of the rotating plate 32, which is more efficient and synchronized than the traditional linear mechanism, further improving the reliability and automation of the hoisting device.
[0044] Preferably, during the hoisting process, the first spring 25 is always in a stretched state, and the guide rod 34 drives the rotating plate 32 to rotate in the opposite direction, causing each movable block 21 to tend to move centrifugally. That is, the hoisting device has high requirements for the self-locking performance of the motor 31. When applied, a motor with an electromagnetic brake, a worm gear motor, etc. can be used.
[0045] Example 3
[0046] As a further implementation of the above embodiments 1-2, such as Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, each vertical rod 4 has a pair of mounting plates 43 arranged vertically along its length on one side, and a pair of mounting rods 44 parallel to the vertical rod 4 and the circular plate 1 are provided between the two mounting plates 43; the end of the clamping plate 41 facing the vertical rod 4 is slidably inserted onto the mounting rod 44; two second springs 45 are sleeved on each mounting rod 44, which are connected between the corresponding mounting plate 43 and the clamping plate 41; when the second spring 45 is in its natural state, the distance between the two clamping plates 41 is greater than the diameter of the vertical rib 52; the bottom of the circular plate 1 is provided with a plurality of mating blocks 14 arranged in a circular array; each mating block 14 is located at the bottom end of the corresponding positioning groove 11, and a V-shaped groove 15 is opened on the side facing the length direction of the corresponding positioning groove 11, and the opening of the V-shaped groove 15 is directly opposite the pair of clamping plates 41.
[0047] When applying, such as Figures 1-6 As shown, during the pre-positioning and secondary positioning stages of the hoisting device, the second spring 45 is always in a natural state. After the secondary positioning is completed, each pair of clamping plates 41 is located outside the ring reinforcement 51 and directly opposite a vertical reinforcement 52. Then, the drive mechanism 3 drives the movable block 21 to move centripetally, and the vertical reinforcement 52 enters between the corresponding pair of clamping plates 41. As the movable block 21 continues to move centripetally, each vertical rod 4 continues to move closer to the axis of the steel cage 5. The ends of the two clamping plates 41 facing the axis of the circular plate 1 will respectively abut against the two inner sides of the V-groove 15 and move. The force of the V-groove 15 on the clamping plates 41 causes the two clamping plates 41 to synchronously close to each other, and the second spring 45 is stretched, thereby clamping the corresponding vertical reinforcement 52. With the arrangement of clamping plate 41, mounting rod 44 and second spring 45, and the cooperation between clamping plate 41 and V-groove 15, clamping plate 41 automatically clamps vertical rib 52 as it enters below the top ring rib 51 and as bearing rod 42 enters below the remaining ring ribs 51, thus further improving the automation level of the hoisting device. At the same time, when movable block 21 moves centrifugally, second spring 45 automatically resets, causing each pair of clamping plates 41 to automatically open, achieving unpowered disengagement of clamping plate 41 from vertical rib 52.
[0048] Preferred, such as Figures 5-8 As shown, the end face of each clamping plate 41 facing the axis of the circular plate 1 is an inclined surface 411 parallel to the inner side of the corresponding V-groove 15. When the movable block 21 moves centripetally, the inclined surface 411 is used to fit against the inner side of the V-groove 15 to push the two clamping plates 41 to retract along the mounting rod 44. Through the cooperation between the inclined surface 411 and the inner side of the V-groove 15, the force on the clamping plate 41 is always perpendicular to the inclined surface 411, so that the two clamping plates 41 can slide and retract without offset, ensuring the clamping stability of the clamping plates 41 on the vertical rib 52.
[0049] Preferred, such as Figure 2As shown, each pair of clamping plates 41 has an anti-slip structure 46 on its clamping surface, including multiple horizontal stripes 47 arranged vertically along the clamping surface, with their extension direction perpendicular to the length direction of the clamping plate 41. When the two clamping plates 41 are closed to clamp the vertical rib 52, the horizontal stripes 47 are used to engage in the grooves of the threads on the surface of the vertical rib 52. Furthermore, the cross section of the horizontal stripes 47 can be set to a sawtooth or wave shape. When clamping the vertical rib 52, the horizontal stripes 47 engage in the grooves of the threads on the surface of the vertical rib 52 to form a two-way mechanical interlock, effectively restricting the position of the vertical rib 52 in both the horizontal and vertical directions, further improving the clamping stability of the clamping plates 41 on the vertical rib 52, and thus improving the lifting stability of the lifting device.
[0050] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.
Claims
1. A steel cage hoisting device for hoisting a vertical cylindrical steel cage (5), characterized in that, include: The circular plate (1) has a positioning groove (11) on its edge along the radial direction. There are multiple positioning grooves (11) arranged in a circumferential array. The edge of the circular plate (1) is provided with at least three circumferentially arranged lifting lugs (13) for connecting to the lifting block (12) located above the circular plate (1) by means of a lifting rope. Multiple positioning components (2) are provided on the top surface of the circular plate (1) and correspond to each positioning groove (11), including a movable block (21) that moves along the positioning groove (11), on which a push rod (22) is slidably passed through in the radial direction of the circular plate (1); a V-shaped plate (23) is provided at one end of the push rod (22) facing the axis of the circular plate (1), with its opening facing the axis of the circular plate (1), and a support plate (24) is provided at the other end; a first spring (25) is sleeved on the push rod (22), which is connected between the support plate (24) and the movable block (21); The drive mechanism (3) is located on the circular plate (1) and is used to drive all the moving blocks (21) to move synchronously in a centripetal or centrifugal direction. Multiple vertical rods (4) are vertically positioned below the circular plate (1) and corresponding to each positioning groove (11). The upper end of the vertical rod (4) is connected to a movable block (21). A pair of vertical clamping plates (41) are provided on one side of the vertical rod (4) facing the axis of the circular plate (1). The clamping plates (41) are located below the positioning groove (11) and facing the length direction of the corresponding push rod (22). Multiple pairs of vertically arrayed bearing rods (42) are provided on one side of the vertical rod (4). They are located below the clamping plates (41) and facing the length direction of the corresponding push rod (22). When the bottom surface of the circular plate (1) abuts against the top ring bar (51) of the steel cage (5), the top surface of the clamping plate (41) is flush with the top ring bar (51), and the top surfaces of each pair of bearing rods (42) are flush with the remaining ring bars (51); when the driving mechanism (3) drives the movable block (21) to move centripetally until the two inner sides of the V-shaped plate (23) abut against the vertical bar (52), the axis of the circular plate (1) coincides with the axis of the steel cage (5), and the clamping plate (41) and the bearing rods (42) are respectively facing the vertical bar (52); when the driving mechanism (3) continues to drive the movable block (21) centripetally, the clamping plate (41) is inserted below the top ring bar (51) and the vertical bar (52) enters between the two clamping plates (41), and each bearing rod (42) is inserted below the corresponding ring bar (51).
2. The steel cage hoisting device according to claim 1, characterized in that, The drive mechanism (3) includes a motor (31) fixed to the bottom of the circular plate (1), whose drive end coaxially passes through the circular plate (1) and is coaxially connected to a rotating plate (32) located above the circular plate (1); the rotating plate (32) has multiple arc-shaped holes (33) arranged in a circular array around the circular plate (1), the distance between the outer end of each arc-shaped hole (33) and the axis of the circular plate (1) is greater than the distance between the inner end and the axis of the circular plate (1), and the center of curvature of each arc-shaped hole (33) deviates from the axis of the circular plate (1); the top surface of each movable block (21) is provided with a guide rod (34) perpendicular to the circular plate (1), each guide rod (34) is respectively inserted into the corresponding arc-shaped hole (33), and the outer wall of the guide rod (34) slides in contact with the inner wall of the arc-shaped hole (33).
3. The steel cage hoisting device according to claim 1, characterized in that, A pair of mounting plates (43) arranged along the length of the vertical rod (4) are vertically provided on one side. A pair of mounting rods (44) parallel to one side of the vertical rod (4) and the circular plate (1) are provided between the two mounting plates (43). The end of the clamping plate (41) facing the vertical rod (4) is slidably inserted onto the mounting rod (44). Two second springs (45) are sleeved on each mounting rod (44), which are connected between the corresponding mounting plate (43) and the clamping plate (41). When the second spring (45) is in its natural state, the distance between the two clamping plates (41) is greater than the diameter of the vertical rib (52). The bottom of the circular plate (1) is provided with multiple mating blocks (14) arranged in a circular array; each mating block (14) is located at the bottom of the corresponding positioning groove (11), and a V-shaped groove (15) is opened on one side facing the length direction of the corresponding positioning groove (11). The opening of the V-shaped groove (15) is directly opposite a pair of clamping plates (41); when the movable block (21) moves towards the center, the two inner sides of the V-shaped groove (15) are respectively used to abut against the two clamping plates (41) at one end facing the axis of the circular plate (1), and push the two clamping plates (41) to retract along the mounting rod (44) to clamp the vertical rib (52).
4. A steel cage hoisting device according to claim 3, characterized in that, Each clamping plate (41) has an end face facing the axis of the circular plate (1) that is an inclined surface (411) parallel to the inner side of the corresponding V-groove (15); when the movable block (21) moves inward, the inclined surface (411) is used to fit against the inner side of the V-groove (15) to push the two clamping plates (41) to retract along the mounting rod (44).
5. A steel cage hoisting device according to claim 3, characterized in that, Each pair of clamping plates (41) has an anti-slip structure (46) on its clamping surface, including multiple horizontal stripes (47) arranged vertically along the clamping surface, the extension direction of which is perpendicular to the length direction of the clamping plate (41); when the two clamping plates (41) close to clamp the vertical rib (52), the horizontal stripes (47) are used to be inserted into the groove of the thread on the surface of the vertical rib (52).
6. A steel cage hoisting device according to claim 1, characterized in that, The top surface of the circular plate (1) is provided with multiple pairs of sliding rods (16) arranged in an array around its circumference; each pair of sliding rods (16) is located on both sides of the corresponding positioning groove (11) and arranged along its length direction, and the movable block (21) slides through the corresponding pair of sliding rods (16).
Citation Information
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