Hoisting hook of tower crane

Abstract

The utility model discloses a hoisting hook of a tower crane, and belongs to the technical field of hoisting equipment. The lifting hook comprises a fixed lifting hook arm, a driving assembly and a curling assembly, the upper end of the fixed lifting hook arm is connected with the lifting end of the tower crane, the driving assembly is arranged on the fixed lifting hook arm, the curling assembly is rotationally connected with the lower end of the fixed lifting hook arm, and the driving end of the driving assembly is connected with the driving end of the curling assembly. Through cooperation of the driving hydraulic cylinder and the connecting rod mechanism, the curling assembly forms a hook shape, and hoisting and carrying of heavy objects are achieved. The lifting and grabbing device is convenient to operate, can improve the working efficiency, has the function similar to that of a manipulator, and is suitable for object lifting and grabbing operation on various occasions.

Description

Technical Field

[0001] The utility model relates to a mechanical hook, in particular to a tower crane hoisting hook. Background Art

[0002] Tower cranes are widely used in construction projects for hoisting and moving a variety of heavy objects. Existing tower crane hoisting hooks typically utilize fixed hook structures, requiring manual operation to attach the object, a cumbersome, time-consuming, and labor-intensive process. This manual operation not only reduces work efficiency but also poses safety risks. Therefore, there is an urgent need for a tower crane hoisting hook that can be operated automatically to reduce manual intervention and improve work efficiency and safety. Summary of the Invention

[0003] The purpose of the utility model is to provide a tower crane hoisting hook.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented according to the following technical solutions:

[0005] The utility model includes a fixed hook arm, a driving assembly and a curling assembly. The upper end of the fixed hook arm is connected to the hoisting end of the tower crane. The driving assembly is arranged on the fixed hook arm. The curling assembly is rotatably connected to the lower end of the fixed hook arm. The driving end of the driving assembly is connected to the driving end of the curling assembly.

[0006] Preferably, the upper end of the fixed hook arm is connected to the hoisting end of the tower crane through a hook arm connecting bolt.

[0007] Furthermore, the driving assembly includes a first driving link, an auxiliary link, and a driving hydraulic cylinder. One end of the auxiliary link is rotatably connected to one side of the upper section of the fixed hook arm, and the other end of the auxiliary link is rotatably connected to the telescopic end of the driving hydraulic cylinder and one end of the first driving link at the same time. The cylinder end of the driving hydraulic cylinder is rotatably connected to one side of the middle section of the fixed hook arm, the lower end of the fixed hook arm is rotatably connected to the curling assembly, and the other end of the first driving link is connected to the driving end of the curling assembly.

[0008] Specifically, the curling assembly includes a first movable arm, a second movable link, a second movable arm, a third movable link, and a third movable arm. One end of the second movable link is rotatably connected to the lower end of the fixed hook arm, the upper end of the first movable arm is rotatably connected to the lower end of the fixed hook arm near the position of the second movable link, one side of the upper section of the first movable arm is rotatably connected to the first driving link, the lower end of the first movable arm is rotatably connected to one end of the third movable link, the lower section of the first movable arm is rotatably connected to one end of the second movable arm, the other end of the second movable link is rotatably connected to one side of the middle section of the second movable arm, the other end of the second movable arm is rotatably connected to one end of the third movable arm, and one side of the middle section of the third movable arm is rotatably connected to the other end of the third movable link.

[0009] The beneficial effects of the utility model are:

[0010] The utility model is a tower crane hoisting hook. Compared with the prior art, the utility model has the following beneficial effects:

[0011] Easy to operate: By driving the combination of hydraulic cylinder and connecting rod mechanism, the lifting hook can be opened and closed automatically, reducing the complexity and work intensity of manual operation.

[0012] Improve efficiency: Automated operation makes the lifting and releasing process faster and more precise, significantly improving work efficiency.

[0013] Versatility: The hook device can form a manipulator-like function through a curling mechanism, which can not only lift, but also clamp and grab objects, expanding its scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is the changing state of the utility model Figure 1 ;

[0016] Figure 3 It is the changing state of the utility model Figure 2 .

[0017] In the figure: fixed hook arm 1, hook arm connecting bolt 2, first driving link 3, auxiliary link 4, driving hydraulic cylinder 5, first movable arm 6, second movable link 7, second movable arm 8, third movable link 9, third movable arm 10. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0019] like Figure 1-3 As shown: The utility model includes a fixed hook arm 1, a drive assembly and a curling assembly. The upper end of the fixed hook arm 1 is connected to the hoisting end of the tower crane, the drive assembly is arranged on the fixed hook arm 1, the curling assembly is rotatably connected to the lower end of the fixed hook arm 1, and the driving end of the drive assembly is connected to the driving end of the curling assembly.

[0020] Preferably, the upper end of the fixed hook arm 1 is connected to the hoisting end of the tower crane through the hook arm connecting bolt 2.

[0021] Furthermore, the driving assembly includes a first driving link 3, an auxiliary link 4, and a driving hydraulic cylinder 5. One end of the auxiliary link 4 is rotatably connected to one side of the upper section of the fixed hook arm 1, and the other end of the auxiliary link 4 is rotatably connected to the telescopic end of the driving hydraulic cylinder 5 and one end of the first driving link 3 at the same time. The cylinder end of the driving hydraulic cylinder 5 is rotatably connected to one side of the middle section of the fixed hook arm 1, the lower end of the fixed hook arm 1 is rotatably connected to the curling assembly, and the other end of the first driving link 3 is connected to the driving end of the curling assembly.

[0022] Specifically, the curling assembly includes a first movable arm 6, a second movable link 7, a second movable arm 8, a third movable link 9, and a third movable arm 10. One end of the second movable link 7 is rotatably connected to the lower end of the fixed hook arm 1, and the upper end of the first movable arm 6 is rotatably connected to the lower end of the fixed hook arm 1 near the position of the second movable link 7. One side of the upper section of the first movable arm 6 is rotatably connected to the first driving link 3, the lower end of the first movable arm 6 is rotatably connected to one end of the third movable link 9, the lower section of the first movable arm 6 is rotatably connected to one end of the second movable arm 8, the other end of the second movable link 7 is rotatably connected to one side of the middle section of the second movable arm 8, the other end of the second movable arm 8 is rotatably connected to one end of the third movable arm 10, and one side of the middle section of the third movable arm 10 is rotatably connected to the other end of the third movable link 9.

[0023] The working principle of this utility model is as follows:

[0024] When the utility model is used, the fixed hook arm 1 is installed on the hoisting end of the crane through the hook arm connecting bolt 2. When the device of the utility model is in place, the first driving link 3 is pushed to move upward by driving the hydraulic cylinder 5, pulling the upper section of the first movable arm 6 to deflect upward, and at the same time, the second movable link 7 pulls the middle section of the second movable arm 8 to deflect upward, and at the same time, the third movable link 9 pulls the middle section of the third movable arm 10 to deflect upward, so that the first movable arm 6, the second movable arm 8, the third movable arm 10 and the second movable link 7 and the third movable link 9 are curled together to form a hook shape to lift objects. If necessary, the curling mechanism can also be formed into a manipulator by driving the hydraulic cylinder 5 to clamp objects and grab them, thereby reducing manual auxiliary hook hanging parts and improving work efficiency.

[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A tower crane hoisting hook, characterized by: The invention comprises a fixed hook arm (1), a driving assembly and a curling assembly, wherein the upper end of the fixed hook arm (1) is connected to the hoisting end of the tower crane, the driving assembly is arranged on the fixed hook arm (1), the curling assembly is rotatably connected to the lower end of the fixed hook arm (1), and the driving end of the driving assembly is connected to the driving end of the curling assembly.

2. The tower crane hoisting hook according to claim 1, characterized in that: The upper end of the fixed hook arm (1) is connected to the hoisting end of the tower crane via a hook arm connecting bolt (2).

3. The tower crane hoisting hook according to claim 1, characterized in that: The driving assembly comprises a first driving link (3), an auxiliary link (4), and a driving hydraulic cylinder (5); one end of the auxiliary link (4) is rotatably connected to one side of the upper section of the fixed hook arm (1); the other end of the auxiliary link (4) is rotatably connected to the telescopic end of the driving hydraulic cylinder (5) and one end of the first driving link (3); the cylinder end of the driving hydraulic cylinder (5) is rotatably connected to one side of the middle section of the fixed hook arm (1); the lower end of the fixed hook arm (1) is rotatably connected to the curling assembly; and the other end of the first driving link (3) is connected to the driving end of the curling assembly.

4. The tower crane hoisting hook according to claim 3, characterized in that: The curling assembly includes a first movable arm (6), a second movable link (7), a second movable arm (8), a third movable link (9), and a third movable arm (10), one end of the second movable link (7) is rotatably connected to the lower end of the fixed hook arm (1), the upper end of the first movable arm (6) is rotatably connected to the position of the lower end of the fixed hook arm (1) close to the second movable link (7), one side of the upper section of the first movable arm (6) is rotatably connected to the first driving link (3), the lower end of the first movable arm (6) is rotatably connected to one end of the third movable link (9), the lower section of the first movable arm (6) is rotatably connected to one end of the second movable arm (8), the other end of the second movable link (7) is rotatably connected to one side of the middle section of the second movable arm (8), the other end of the second movable arm (8) is rotatably connected to one end of the third movable arm (10), and one side of the middle section of the third movable arm (10) is rotatably connected to the other end of the third movable link (9).

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