Anti-swing device for lifting hook of building tower crane
By using anti-sway mechanisms and tension adjustment mechanisms, the safety hazards caused by violent hook swaying are solved, achieving stable hook suspension and high-precision positioning, thus improving the safety and adaptability of construction tower cranes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-03
AI Technical Summary
The violent swinging of the hooks of existing building tower cranes can easily cause the hoisted load to collide with surrounding objects, loosen the connection, or even cause a hook detachment accident, posing a serious safety hazard.
The system employs an anti-sway mechanism and a tension adjustment mechanism. The lateral sway of the side plate is limited by a third steel rope and a pull ring. The included angle and tension of the steel rope are adjusted by a threaded rod and a moving block. An elastic block is used to prevent the hook from falling off, thus achieving stable suspension of the hook.
It enhances the stability and safety of the hook, prevents the load from falling off, improves the adaptability and positioning accuracy of the suspension, and enhances construction safety.
Smart Images
Figure CN224076958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tower crane technology, and in particular to an anti-sway device for tower crane hooks. Background Technology
[0002] Tower crane hooks typically consist of a hook body, pulley blocks, shafts, and bearings. The hook body is generally forged from high-quality alloy steel, possessing high strength and toughness, and capable of withstanding large loads. The pulley blocks are mounted on the hook body via shafts and bearings; their function is to change the direction and magnitude of the force, thereby achieving the lifting and lowering of heavy objects.
[0003] However, in the existing technology, the swing of the hook can easily cause the suspended object to collide with surrounding buildings, equipment, people, etc., resulting in property damage and personal injury. Violent swing can easily loosen the connection between the hook and the suspended object, or even cause a hook detachment accident, causing the suspended object to fall and causing a serious safety accident. Utility Model Content
[0004] The purpose of this invention is to solve the problem in the prior art that violent swinging can easily loosen the connection between the hook and the load, or even lead to a hook detachment accident, causing the load to fall and causing serious safety accidents. Therefore, this invention proposes an anti-swing device for the hook of a building tower crane.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a building tower crane hook anti-sway device, including a top plate, two winches are symmetrically fixedly connected to the top of the top plate, a first steel rope is wound on the surface of the winches, a limit plate is fixedly connected to the bottom of the first steel rope, and openings are installed on both sides of the bottom of the limit plate. A side plate is connected between the two anti-sway mechanisms.
[0006] The anti-sway mechanism includes a third steel rope, with pull rings fixedly connected to both ends of the third steel rope. A first mounting bracket is suspended inside one of the pull rings, and a second mounting bracket is suspended inside the other pull ring. A movable block is fixedly connected to the top of the first mounting bracket, and a threaded rod is threadedly connected to the inside of the movable block. Both ends of the threaded rod are rotatably connected to the limit plate.
[0007] Preferably, a handle is fixedly connected to the outer surface of one end of the threaded rod.
[0008] Preferably, a lifting wheel is rotatably connected to the inner side of the side plate, and a second steel rope is sleeved on the surface of the lifting wheel.
[0009] Preferably, the top of the second steel rope passes through the limiting plate in sequence.
[0010] Preferably, an opening is provided in the middle of the top plate, through which the second steel rope passes.
[0011] Preferably, a hook body is rotatably connected to the bottom of the side plate, and an elastic block is rotatably connected to the inner side of the hook body.
[0012] Preferably, one end of the second mounting bracket is fixedly connected to the side wall of the side plate.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, two pull rings are connected to both ends of the third steel rope. One pull ring restricts the lateral sway of the side plate to ensure its position is stable, and the other pull ring is fixed to the first mounting frame to keep the steel rope taut. In order to achieve precise adjustment of the tension and angle of the steel rope, a tension adjustment mechanism consisting of a limiting plate, a handle, a threaded rod and a moving block is designed. By rotating the handle, the threaded rod is rotated, which in turn drives the moving block to move horizontally, thereby adjusting the included angle and tension of the steel rope and enhancing the system's adaptability to different materials and construction environments.
[0015] 2. In this utility model, an elastic block is provided on the inner side of the hook body to effectively prevent materials from falling off during the hoisting process, and it has buffering and shock absorption functions to enhance operational safety. The winch controls the first steel rope to achieve precise lifting and lowering of the limit plate, which is convenient to adjust to the optimal working height according to the material size and improve positioning efficiency. After the limit plate is positioned, the system drives the moving block through the threaded rod to achieve lateral fine adjustment, further optimizing the cooperation between the limit plate and the hook body, and enhancing lateral stability and anti-sway performance. Attached Figure Description
[0016] Figure 1 This utility model provides a schematic diagram of the overall three-dimensional structure of an anti-sway device for a building tower crane hook;
[0017] Figure 2 This utility model provides a front view structural diagram of an anti-sway device for a building tower crane hook;
[0018] Figure 3 This utility model provides a three-dimensional structural diagram of the anti-sway mechanism in a tower crane hook anti-sway device;
[0019] Figure 4 This utility model provides a three-dimensional structural diagram of the anti-sway mechanism in a tower crane hook anti-sway device.
[0020] Legend: 1. Top plate; 2. Winch; 3. First steel rope; 4. Limit plate; 5. Second steel rope; 6. Side plate; 61. Lifting wheel; 7. Hook body; 71. Elastic block; 8. Anti-sway mechanism; 81. Threaded rod; 82. Moving block; 83. Handle; 84. First mounting bracket; 85. Pull ring; 86. Third steel rope; 87. Second mounting bracket; 9. Through port. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1: As Figures 1-4 As shown, this utility model provides a building tower crane hook anti-sway device, including a top plate 1, two winches 2 are symmetrically fixedly connected to the top of the top plate 1, a first steel rope 3 is wound on the surface of the winches 2, a limit plate 4 is fixedly connected to the bottom of the first steel rope 3, and openings 9 are installed on both sides of the bottom of the limit plate 4. A side plate 6 is connected between the two anti-sway mechanisms 8.
[0024] The anti-sway mechanism 8 includes a third steel rope 86, with pull rings 85 fixedly connected to both ends of the third steel rope 86. A first mounting bracket 84 is suspended inside one of the pull rings 85, and a second mounting bracket 87 is suspended inside the other pull ring 85. A movable block 82 is fixedly connected to the top of the first mounting bracket 84, and a threaded rod 81 is threadedly connected to the inside of the movable block 82. Both ends of the threaded rod 81 are rotatably connected to the limit plate 4.
[0025] The specific settings and functions of this embodiment will be described in detail below. During the process of suspending building materials using the hook body 7, two anti-sway mechanisms 8 are introduced to improve stability during suspension and prevent material swaying due to inertia or external forces. These two anti-sway mechanisms 8, through coordinated control of the third steel rope 86, effectively limit the position of the suspended material and reduce swaying.
[0026] Specifically, the two ends of the third steel rope 86 are connected to two pull rings 85 respectively. One pull ring 85 is used to limit the lateral sway of the side plate 6, ensuring that the side plate 6 remains in the set position during suspension and avoiding the impact of swaying on the suspension balance. The other pull ring 85 is fixedly connected to the first mounting bracket 84, thus forming a stable tension structure, so that the third steel rope 86 is always in a taut state. Through this structural arrangement, the two pull rings 85 apply limiting constraints.
[0027] In actual operation, to further precisely adjust the tension and angle of the third steel rope 86, the system is designed with a tensioning and adjustment mechanism consisting of a limiting plate 4, a handle 83, a threaded rod 81, and a moving block 82. When the operator turns the handle 83, it causes the threaded rod 81 connected to it to rotate. The rotating threaded rod 81 then drives the threaded moving block 82 to translate along the guide rail. The change in the position of the moving block 82 directly affects the angle between the third steel rope 86 and the pull ring 85, as well as the tension of the steel rope.
[0028] Through the above adjustments, not only can the third steel rope 86 maintain sufficient tension to prevent slack, but the angle of the steel rope can also be finely adjusted according to actual needs, thereby adapting to the suspension requirements of different types or sizes of building materials and enhancing the overall adaptability in complex construction environments.
[0029] Example 2: Figures 2-4 As shown, a handle 83 is fixedly connected to the outer surface of one end of the threaded rod 81. A lifting wheel 61 is rotatably connected to the inner side of the side plate 6, and a second steel rope 5 is sleeved on the surface of the lifting wheel 61. The top end of the second steel rope 5 passes through the limiting plate 4. An opening 9 is opened in the middle of the top plate 1, and the second steel rope 5 passes through the opening 9. A hook body 7 is rotatably connected to the bottom of the side plate 6, and an elastic block 71 is rotatably connected to the inner side of the hook body 7. One end of the second mounting bracket 87 is fixedly connected to the side wall of the side plate 6.
[0030] The overall effect of this embodiment is that the top plate 1 is firmly connected to the suspension device, serving as the upper load-bearing structure of the entire system and ensuring the stability and load-bearing capacity of the suspension device. During material suspension operations, the inner side of the hook body 7 is effectively sealed by the elastic block 71. This structure not only prevents materials from falling off due to vibration or swaying during hoisting, but also has a certain buffering and shock absorption effect, improving the safety of the hoisting process.
[0031] Meanwhile, the winch 2, acting as the power actuator, can orderly wind and release the first steel rope 3, thereby precisely controlling the vertical height of the limit plate 4. The operator can adjust the limit plate 4 to the optimal working height according to the actual size and position requirements of the suspended material, achieving rapid positioning of the suspension point and improving work efficiency and positioning accuracy.
[0032] After the height of the limiting plate 4 is determined, a moving block 82 structure driven by a threaded rod 81 is set up to further match its position and optimize the balance and anti-sway performance in the suspended state. By rotating the threaded rod 81, the moving block 82 can move precisely along the guide structure, thereby adjusting the lateral balance of the suspension system and making the limiting plate 4 and the hook body 7 form a stable fit. This design not only improves the anti-sway performance of the overall structure, but also enhances the adaptability and safety of the suspension system under complex working conditions, and is especially suitable for scenarios requiring high-precision hoisting positioning.
[0033] The usage and working principle of this device are as follows: When using the hook body 7 to suspend building materials, two anti-sway mechanisms 8 are installed to effectively prevent the materials from swaying during hoisting. Specifically, the third steel rope 86 is connected to two pull rings 85. One pull ring 85 is used to limit the position of the side plate 6, and the other pull ring 85 is connected to the first mounting frame 84, thereby keeping the third steel rope 86 taut and enhancing the stability of the overall structure.
[0034] When adjusting the suspension height, the winch 2 winds up or releases the first steel rope 3, thereby controlling the raising and lowering of the limit plate 4 to achieve precise adjustment of the suspension height. Simultaneously, the operator can drive the threaded rod 81 to rotate via the handle 83, causing the moving block 82 to move along the guide rail, further adjusting the angle between the third steel rope 86 and the pull ring 85, thus controlling its tension. This structure allows the two anti-sway mechanisms 8 to work collaboratively under different operating conditions, achieving stable constraint and anti-sway function for the suspension components.
[0035] The top plate 1 is firmly connected to the suspension device, forming the supporting foundation of the entire system. During material suspension, an elastic block 71 is provided on the inner side of the hook body 7 to close the lifting channel and prevent materials from slipping out during transportation. The overall structural design is reasonable, allowing for flexible adjustment of the position of the limiting plate 4 according to actual operational needs. Precise control of the tension angle of the third steel rope 86 enhances the balance and anti-disturbance capability of the suspension system, ensuring safety and stability during operation.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A sway prevention device for a tower crane hook, comprising a top plate (1), two winches (2) symmetrically fixedly connected to the top of the top plate (1), a first steel rope (3) wound around the surface of the winches (2), and a limit plate (4) fixedly connected to the bottom of the first steel rope (3), characterized in that: Both sides of the bottom of the limiting plate (4) are provided with through holes (9), and the two anti-swing mechanisms (8) are connected with a side plate (6); The anti-swing mechanism (8) comprises a third steel wire (86), and both ends of the third steel wire (86) are fixedly connected with pull rings (85). The inner side of one of the pull rings (85) is hung with a first mounting bracket (84), and the inner side of the other pull ring (85) is hung with a second mounting bracket (87). The top of the first mounting bracket (84) is fixedly connected with a moving block (82), the inner side of the moving block (82) is threadedly connected with a threaded rod (81), and both ends of the threaded rod (81) are rotatably connected with the limiting plate (4).
2. The anti-swing device for the hook of a building tower crane according to claim 1, characterized in that: One end of the threaded rod (81) is fixedly connected with a handle (83) on the outer surface.
3. The anti-swinging device for the hook of a building tower crane according to claim 1, characterized in that: The inner side of the side plate (6) is rotatably connected with a lifting wheel (61), and the surface of the lifting wheel (61) is sleeved with a second steel wire (5).
4. The anti-swinging device for the hook of a building tower crane according to claim 1, characterized in that: The top end of the second steel wire (5) penetrates the limiting plate (4) in sequence.
5. The anti-swinging device for the hook of a building tower crane according to claim 1, characterized in that: The middle of the top plate (1) is provided with a through hole (9), and the second steel wire (5) passes through the through hole (9).
6. The anti-swinging device for the hook of a building tower crane according to claim 1, characterized in that: The bottom of the side plate (6) is rotatably connected with a hook body (7), and the inner side of the hook body (7) is rotatably connected with an elastic block (71).
7. The anti-swinging device for the hook of a building tower crane according to claim 1, characterized in that: One end of the second mounting bracket (87) is fixedly connected with the side wall of the side plate (6).