Lifting hook of tower crane
By designing limit components and adjustment mechanisms on the tower crane hook, the problem of insufficient stability of the hook when lifting heavy objects is solved, and the stable fixation of heavy objects and the improvement of construction safety is achieved.
Patent Information
- Application Number
- CN202420464691.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-03-11
AI Technical Summary
When lifting heavy objects, the tower crane hooks are insufficient in contact with each other, causing the heavy objects to shake unsteadily and may even fall off, causing safety accidents.
A tower crane lifting hook is designed, equipped with limiting components and adjustment mechanism. The limiting assembly includes a movable shaft, a support frame, a reset member, a guide shaft, a steering member and a press plate. Through the cooperation of these components, the weight can be pressed and limited to fix, achieving double reinforcement.
It effectively improves the stability of the hook when lifting heavy objects, avoids falling heavy objects, and improves construction safety.
Smart Images
Figure CN222794967U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tower cranes, in particular to a hoisting hook of a tower crane. Background Art
[0002] Tower crane, also known as tower crane or tower crane, is characterized by its towering tower and the boom mounted on top, which gives it unparalleled working space and lifting height. This engineering machinery is mainly composed of key parts such as metal structure, working mechanism and electrical system (sometimes also including safety devices).
[0003] In the daily use of tower cranes, the hook plays a vital role in lifting various heavy objects. However, the hook itself is relatively small, so when lifting heavy objects, the contact area between the heavy object and the hook is limited. In this case, the heavy object is prone to shaking during the lifting process, and the stability is seriously affected. What's more serious is that due to the insufficient contact area, the heavy object may fall off the hook, causing serious safety accidents. Utility Model Content
[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.
[0005] To this end, the purpose of the utility model is to propose a lifting hook for a tower crane. When a heavy object is installed on the hook, the limit assembly can be used to press and limit the heavy object, and the hook can be used to achieve double reinforcement, which effectively enhances the stability of the hook when lifting heavy objects, prevents the heavy object from falling, and improves construction safety.
[0006] To achieve the above-mentioned purpose, the utility model proposes a tower crane lifting hook, comprising a lifting assembly and a limiting assembly, wherein the lifting assembly comprises a fixed frame, a hook and an adjusting mechanism, wherein the hook is movably arranged on the fixed frame; the adjusting mechanism is movably arranged on the fixed frame, and the adjusting mechanism is connected to the hook; the limiting assembly is arranged on the hook, and the limiting assembly comprises a movable shaft, a support frame, a reset member, a guide shaft, a steering member and a pressure plate, wherein the movable shaft is movably arranged on the hook; the support frame is arranged on the bottom wall of the movable shaft; the two ends of the reset member are respectively connected to the support frame and the hook; the guide shaft is arranged on the top wall of the support frame; the steering member is rotatably arranged on the hook, and the steering member is connected to the guide shaft; the pressure plate is arranged on the steering member.
[0007] The tower crane lifting hook of the utility model can cooperate with the limiting component to press and limit the heavy object to fix it during the process of installing the heavy object on the hook, and cooperate with the hook to achieve double reinforcement, effectively enhance the stability of the hook when lifting the heavy object, avoid the heavy object from falling, and improve construction safety.
[0008] In addition, the tower crane lifting hook proposed in the application may also have the following additional technical features:
[0009] Specifically, the adjustment mechanism includes a driven bracket, a screw rod and a limiting component, wherein the driven bracket is movably arranged on the fixed bracket, and the driven bracket is connected to the hook; the screw rod is movably arranged on the fixed bracket, and the screw rod is connected to the driven bracket; the limiting component is threadedly connected to the screw rod.
[0010] Specifically, the steering member includes a positioning shaft, a first transmission member, a second transmission member and a torsion spring, wherein the positioning shaft is arranged in the hook; the first transmission member and the second transmission member are respectively arranged on the positioning shaft; and the two ends of the torsion spring are respectively connected to the first transmission member and the second transmission member.
[0011] Specifically, the pressing plate is an arc-shaped plate, and the surface of the pressing plate is covered with a protective layer, and the protective layer is a soft rubber layer.
[0012] Specifically, a through slot is provided on the fixing frame, and the outer diameter of the limiting component is larger than the inner diameter of the through slot.
[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of a limit assembly according to an embodiment of the utility model;
[0017] Figure 3 The figure is a schematic diagram of the structure of a steering member according to an embodiment of the utility model.
[0018] As shown in the figure: 10, lifting assembly; 101, fixing frame; 102, hook; 103, adjusting mechanism; 1031, driven bracket; 1032, screw; 1033, limiting component; 20, limiting assembly; 201, movable shaft; 202, supporting frame; 203, reset member; 204, guide shaft; 205, steering member; 2051, positioning shaft; 2052, first transmission member; 2053, second transmission member; 2054, torsion spring; 206, pressure plate. DETAILED DESCRIPTION
[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.
[0020] The tower crane hoisting hook according to the embodiment of the utility model will be described below in conjunction with the accompanying drawings.
[0021] like Figure 1-Figure 3 As shown, the tower crane hoisting hook according to the embodiment of the utility model may include a hoisting assembly 10 and a limiting assembly 20 .
[0022] The lifting assembly 10 may include a fixing frame 101 , a hook 102 and an adjusting mechanism 103 .
[0023] The hook 102 is movably disposed on the fixing frame 101 , the adjusting mechanism 103 is movably disposed on the fixing frame 101 , and the adjusting mechanism 103 is connected to the hook 102 .
[0024] It should be noted that a through slot (not specifically marked in the figure) is provided on the fixing frame 101, and the hook 102 and the adjustment mechanism 103 can be limited in the through slot for lifting and lowering. The height of the adjusted hook 102 is limited by the adjustment mechanism 103.
[0025] The limiting assembly 20 is disposed on the hook 102 , and the limiting assembly 20 may include a movable shaft 201 , a support frame 202 , a reset member 203 , a guide shaft 204 , a steering member 205 and a pressure plate 206 .
[0026] The movable shaft 201 is movably arranged on the hook 102, the support frame 202 is arranged on the bottom wall of the movable shaft 201, and the two ends of the reset member 203 are respectively connected to the support frame 202 and the hook 102. The guide shaft 204 is arranged on the top wall of the support frame 202, the steering member 205 is rotatably arranged on the hook 102, and the steering member 205 is connected to the guide shaft 204, and the pressure plate 206 is arranged on the steering member 205.
[0027] It should be noted that the movable shaft 201 described in this embodiment is raised and lowered on the hook 102, and an open slot is provided on the hook 102, and the movable shaft 201 is raised and lowered in the open slot. When a heavy object to be hoisted is placed on the hook 102, the heavy object is pressed on the movable shaft 201, pushing the movable shaft 201 and driving the support frame 202 and the guide shaft 204 to move downward, and in the process of moving downward, the cooperation of the movable shaft 201 and the steering member 205 drives the pressing plate 206 to flip, so that the pressing plate 206 flips and presses on the surface of the heavy object to strengthen its fixation.
[0028] Specifically, when the tower crane uses the lifting hook to carry heavy objects, the height of the hook 102 on the fixed frame 101 can be adjusted by the adjustment mechanism 103. When the heavy object is placed on the hook 102, the heavy object is pressed on the movable shaft 201, pushing the movable shaft 201 and driving the support frame 202 and the guide shaft 204 to move downward, and in the process of moving downward, the movable shaft 201 and the steering member 205 cooperate to drive the pressure plate 206 to flip, so that the pressure plate 206 flips and presses on the surface of the heavy object to strengthen its fixation. The lifting hook makes the tower crane more stable when carrying heavy objects and can reinforce the heavy objects.
[0029] In one embodiment of the present invention, Figure 1 As shown, the adjustment mechanism 103 may include a driven bracket 1031 , a screw rod 1032 and a limiting component 1033 .
[0030] The driven bracket 1031 is movably disposed on the fixed bracket 101, and the driven bracket 1031 is connected to the hook 102. The screw rod 1032 is movably disposed on the fixed bracket 101, and the screw rod 1032 is connected to the driven bracket 1031, and the limiting component 1033 is threadedly connected to the screw rod 1032.
[0031] It should be noted that one end of the driven bracket 1031 is connected to a position close to the top of the hook 102, and through the driven bracket 1031 and the adjustment mechanism 103, the hook 102 can be kept stable when the height of the driven bracket 1031 is adjusted.
[0032] In one embodiment of the present invention, Figure 3As shown, the steering member 205 may include a positioning shaft 2051 , a first transmission member 2052 , a second transmission member 2053 and a torsion spring 2054 .
[0033] The positioning shaft 2051 is disposed in the hook 102 , the first transmission member 2052 and the second transmission member 2053 are respectively disposed on the positioning shaft 2051 , and both ends of the torsion spring 2054 are respectively connected to the first transmission member 2052 and the second transmission member 2053 .
[0034] It should be noted that the two ends of the positioning shaft 2051 are fixed in the inner wall of the hook 102, and an opening groove (not shown in the figure) is provided on the outer wall of the hook 102 for the pressing plate 206 to flip. The two ends of the torsion spring 2054 are respectively connected to the first transmission member 2052 and the second transmission member 2053, and the first transmission member 2052 and the guide shaft 204. In the process of lifting and lowering movement, the guide shaft 204 drives the first transmission member 2052 to rotate and drives the second transmission member 2053 to rotate in the opposite direction through the torsion spring 2054, so that the pressing plate 206 rotates.
[0035] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the pressing plate 206 is an arc-shaped plate, and the surface of the pressing plate 206 is covered with a protective layer, and the protective layer is a soft rubber layer.
[0036] It should be noted that the curvature and material of the pressing plate 206 can be designed according to specific circumstances and are not specifically limited here. The protective layer on the pressing plate 206 is a soft rubber layer, so when the pressing plate 206 is pressed on the heavy object, the heavy object can be stabilized.
[0037] In one embodiment of the present invention, Figure 1 As shown, a through slot is provided on the fixing frame 101, and the outer diameter of the limiting component 1033 is larger than the inner diameter of the through slot.
[0038] It should be noted that the limiting component 1033 can be an internal thread bolt. The limiting component 1033 is threadedly rotated and raised on the screw rod 1032 to fit the limiting component 1033 on the fixing frame 101, thereby limiting the adjusted hook 102.
[0039] Specifically, when the tower crane uses the lifting hook to carry heavy objects, the height of the hook 102 on the fixing frame 101 can be adjusted by the adjusting mechanism 103. After the height is adjusted, the limiting component 1033 is threadedly adjusted on the screw rod 1032 so that the limiting component 1033 is attached to the top wall of the fixing frame 101, thereby limiting and fixing the hook 102.
[0040] When a heavy object is placed on the hook 102, the heavy object is pressed on the movable shaft 201, pushing the movable shaft 201 and driving the support frame 202 and the guide shaft 204 to move downward, and in the process of moving downward, the movable shaft 201 and the steering member 205 cooperate to drive the pressure plate 206 to flip, so that the pressure plate 206 flips and presses on the surface of the heavy object. The guide shaft 204 moves downward, and at this time the guide shaft 204 is connected to the first transmission member 2052, and the second transmission member 2053 is synchronously turned downward by the connection of the torsion spring 2054, so that the pressure plate 206 can be pressed on the heavy object to strengthen the fixation of the heavy object. By lifting the hook, the tower crane has stronger stability when carrying heavy objects and can reinforce the heavy objects.
[0041] In summary, the tower crane lifting hook of the utility model embodiment can cooperate with the limiting assembly to press and limit the heavy object when the heavy object is installed on the hook, and cooperate with the hook to achieve double reinforcement, which effectively enhances the stability of the hook when lifting the heavy object, avoids the heavy object from falling, and improves construction safety.
[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.
Claims
1. A tower crane hoisting hook, characterized in that: It comprises a lifting assembly (10) and a limiting assembly (20), wherein: The lifting assembly (10) comprises a fixing frame (101), a lifting hook (102) and an adjusting mechanism (103), wherein: The hook (102) is movably arranged on the fixing frame (101); The adjusting mechanism (103) is movably arranged on the fixing frame (101), and the adjusting mechanism (103) is connected to the hook (102); The position limiting assembly (20) is arranged on the hook (102), and comprises a movable shaft (201), a support frame (202), a reset member (203), a guide shaft (204), a steering member (205) and a pressure plate (206), wherein: The movable shaft (201) is movably arranged on the hook (102); The support frame (202) is arranged on the bottom wall of the movable shaft rod (201); Two ends of the resetting member (203) are respectively connected to the support frame (202) and the hook (102); The guide shaft (204) is arranged on the top wall of the support frame (202); The steering member (205) is rotatably arranged on the hook (102), and the steering member (205) is connected to the guide shaft (204); The pressure plate (206) is arranged on the steering member (205).
2. The tower crane hoisting hook according to claim 1, characterized in that: The adjustment mechanism (103) comprises a driven bracket (1031), a screw rod (1032) and a limiting component (1033), wherein: The driven bracket (1031) is movably arranged on the fixed bracket (101), and the driven bracket (1031) is connected to the hook (102); The screw rod (1032) is movably arranged on the fixing frame (101), and the screw rod (1032) is connected to the driven bracket (1031); The limiting component (1033) is threadedly connected to the screw rod (1032).
3. The tower crane hoisting hook according to claim 1, characterized in that: The steering member (205) comprises a positioning shaft (2051), a first transmission member (2052), a second transmission member (2053) and a torsion spring (2054), wherein: The positioning shaft (2051) is arranged in the hook (102); The first transmission member (2052) and the second transmission member (2053) are respectively arranged on the positioning shaft (2051); Two ends of the torsion spring (2054) are respectively connected to the first transmission member (2052) and the second transmission member (2053).
4. The tower crane hoisting hook according to claim 1, characterized in that: The pressing plate (206) is an arc-shaped plate, and the surface of the pressing plate (206) is covered with a protective layer, and the protective layer is a soft rubber layer.
5. The tower crane hoisting hook according to claim 2, characterized in that: A through slot is provided on the fixing frame (101), and the outer diameter of the limiting component (1033) is greater than the inner diameter of the through slot.