Early warning device for operation of tower crane

Abstract

The utility model discloses a tower crane operation early warning device which comprises a tower crane body, the tower crane body comprises a lifting hook frame, a bearing disc is fixedly connected among the outer walls of multiple sides of the lifting hook frame, the bottom of the bearing disc is fixedly connected with a plurality of warning bells, the circumference of the bearing disc is rotatably clamped with a rotary drum, and the rotary drum is fixedly connected with the lifting hook frame. A plurality of light early warning assemblies are arranged on the circumferential outer wall of the rotating drum, each light early warning assembly comprises an arc plate, the arc plates are fixed to the circumferential outer wall of the rotating drum through bolts, the outer sides of the arc plates are transversely and rotationally connected with a plurality of rotating blocks through rotating shafts, and warning lamps are fixedly connected to the bottoms of the rotating blocks. According to the warning lamp, the rotating block is driven by the external motor to rotate, so that the warning lamp is driven to rotate, the irradiation direction of the warning lamp is adjusted according to the size of an object, the object is prevented from blocking the irradiation direction of the warning lamp, and the early warning effect of the warning lamp is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, and in particular to a tower crane operation early warning device. Background Technology

[0002] Currently, tower cranes are important lifting and hoisting machinery in the construction phase of building projects, responsible for hoisting materials such as steel bars, formwork, timber, and steel pipes. However, the hoisted materials may scatter and fall, posing a significant safety hazard. Therefore, it is necessary to use early warning devices to alert personnel below the hoisted loads.

[0003] Among them, a search revealed Chinese patent CN222082292U, which discloses a tower crane hoisting warning device. The aforementioned patent uses a structure with light groups to illuminate the hoisting area of ​​the tower crane. However, because the light groups are concentrated above the hook, the light is easily blocked by the load being hoisted by the hook, thus reducing the safety warning performance. Therefore, in order to advance industry technology, better ensure the warning function of the warning device, and improve the core technology competitiveness, this application proposes a new implementation scheme that differs from the structure and application method of tower crane operation warning devices in the prior art. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the light emitted by the lamp assembly is easily blocked by the load hoisted by the hook during the use of existing warning devices, thus reducing the safety warning performance. Therefore, this invention proposes a tower crane operation early warning device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tower crane operation early warning device includes a tower crane body, which includes a hook frame. A support plate is fixedly connected between multiple outer walls of the hook frame. Multiple warning bells are fixedly connected to the bottom of the support plate. A rotating drum is circumferentially engaged with the support plate. Multiple light warning components are provided on the outer circumferential wall of the rotating drum. Each light warning component includes an arc plate, which is fixed to the outer circumferential wall of the rotating drum by bolts. Multiple rotating blocks are laterally rotatably connected to the outer side of the arc plate via a rotating shaft. Warning lights are fixedly connected to the bottom of the rotating blocks. Multiple external motors are fixedly connected to one outer wall of the arc plate. The output end of the external motor is fixedly connected to one end of the rotating block.

[0007] Furthermore, a hook is fixedly connected to the bottom of the hook frame.

[0008] Furthermore, an internal motor is fixedly connected to the top of the tray, and an incomplete gear is keyed to the output end of the internal motor.

[0009] Furthermore, an arc rack is fixedly connected to the inner circumference of the rotating drum, and the incomplete gear meshes with the arc rack.

[0010] Furthermore, a connecting block is fixedly connected to the inner circumference of the rotating drum, and an arc rod is fixedly connected to one side of the connecting block. A spring is sleeved on the outer wall of the arc rod.

[0011] Furthermore, a base plate is fixedly connected to the top of the tray, one end of the arc rod is slidably inserted into the base plate, and a limit ring is also fixedly connected to this end of the arc rod.

[0012] Furthermore, a counterweight is fixedly connected to the top of the tray.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The rotating block is driven by an external motor to rotate, which in turn drives the warning light to rotate. The direction of the warning light is adjusted according to the size of the load, thus preventing the load from blocking the direction of the warning light and ensuring the warning light's early warning effect.

[0015] 2. Driven by an internal motor, the incomplete gear rotates. When the incomplete gear meshes with the arc rack, it drives the rotating drum to rotate, thereby causing the warning light to rotate. This causes the light from the warning light to form a circle on the ground, thus reminding the staff that the area within the circle is the lifting range of the goods, improving the early warning effect. Attached Figure Description

[0016] Figure 1 A schematic diagram of the state structure of the early warning device of the tower crane operation early warning device proposed in this utility model, which is assembled on the tower crane body.

[0017] Figure 2 This is a partial cross-sectional view of a tower crane operation early warning device proposed in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the lighting warning component of a tower crane operation warning device proposed in this utility model;

[0019] Figure 4 This is a partial top view of the structure of a tower crane operation early warning device proposed in this utility model.

[0020] In the diagram: 1. Tower crane body; 2. Hook frame; 3. Support plate; 4. Warning bell; 5. Rotary drum; 6. Light warning assembly; 601. Arc plate; 602. Rotating block; 603. Warning light; 604. External motor; 7. Arcuate rack; 8. Internal motor; 9. Incomplete gear; 10. Balance block; 11. Connecting block; 12. Arc rod; 13. Base plate; 14. Spring; 15. Limiting ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A tower crane operation early warning device includes a tower crane body 1, which includes a hook frame 2. A hook is welded to the bottom of the hook frame 2 to facilitate the suspension of goods. A support pallet 3 is welded between multiple outer walls of the hook frame 2. Multiple warning bells 4 are bolted to the bottom of the support pallet 3 to provide early warning and remind workers that goods are being lifted. A rotating drum 5 is circumferentially engaged with the support pallet 3. Multiple light warning components 6 are provided on the outer circumference of the rotating drum 5. Each light warning component 6 includes an arc plate 601, which is bolted to... On the outer circumference of the rotating drum 5, multiple rotating blocks 602 are connected to the outer side of the arc plate 601 via a rotating shaft. A warning light 603 is fixed to the bottom of the rotating block 602 by bolts. Multiple external motors 604 are fixed to one side of the outer wall of the arc plate 601 by bolts. The output end of the external motor 604 is fixedly connected to one end of the rotating block 602. Under the drive of the external motor 604, the rotating block 602 rotates, thereby driving the warning light 603 to rotate. The illumination direction of the warning light 603 is adjusted according to the size of the load, thus preventing the load from blocking the illumination direction of the warning light 603.

[0023] An internal motor 8 is bolted to the top of the tray 3. An incomplete gear 9 is keyed to the output end of the internal motor 8. An arc rack 7 is welded to the inner circumference of the rotating drum 5, and the incomplete gear 9 meshes with the arc rack 7. A connecting block 11 is welded to the inner circumference of the rotating drum 5, and an arc rod 12 is welded to one side of the connecting block 11. A spring 14 is sleeved on the outer wall of the arc rod 12. A base plate 13 is welded to the top of the tray 3, and one end of the arc rod 12 is slidably inserted into the base plate 13. Driven by the internal motor 8, the incomplete gear 9 rotates. When the incomplete gear 9 meshes with the arc rack 7, it drives the rotating drum 5 to rotate, thereby causing the warning light 603 to rotate. This causes the light illuminating the warning light 603 to form a circle on the ground, thus reminding the staff that the circle is within the lifting range of the goods, and thus providing better early warning. A limit ring 15 is also welded to this end of the arc rod 12 to prevent the arc rod 12 from slipping off the base plate 13. The top of the pallet 3 is fixed with a balance block 10 by bolts to maintain the horizontal balance of the pallet 3.

[0024] The working principle of this embodiment is as follows: During use, the goods are hung on the hook below the hook frame 2 using a steel wire rope, and then the tower crane body 1 is used to lift the goods. At the same time, the warning bell 4 provides an early warning, thereby reminding the staff that the goods are being lifted. During the lifting process, the external motor 604 drives the rotating block 602 to rotate, thereby driving the warning light 603 to rotate. The direction of the warning light 603 is adjusted according to the size of the load, thus avoiding the load from blocking the direction of the warning light 603. Then, the incomplete gear 9 rotates under the drive of the internal motor 8. When the incomplete gear 9 meshes with the arc rack 7, it drives the rotating drum 5 to rotate, thereby driving the warning light 603 to rotate. This causes the light emitted by the warning light 603 to form a circle on the ground, thereby reminding the staff that the area within the circle is the lifting range of the goods, thus providing better early warning.

[0025] When the incomplete gear 9 is not engaged with the arc rack 7, the arc rack 7 is reset by the elastic action of the spring 14 so that the arc rack 7 can engage with the incomplete gear 9 again.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tower crane operation early warning device, comprising a tower crane body (1), characterized in that, The tower crane body (1) includes a hook frame (2), a support plate (3) is fixedly connected between the outer walls of the hook frame (2), a number of warning bells (4) are fixedly connected to the bottom of the support plate (3), a rotating drum (5) is circumferentially connected to the support plate (3), and a number of light warning components (6) are provided on the outer wall of the rotating drum (5). The light warning components (6) include an arc plate (601), which is fixed to the outer wall of the rotating drum (5) by bolts. A number of rotating blocks (602) are laterally connected to the outer side of the arc plate (601) through a rotating shaft. A warning light (603) is fixedly connected to the bottom of the rotating block (602). A number of external motors (604) are fixedly connected to one side of the outer wall of the arc plate (601), and the output end of the external motor (604) is fixedly connected to one end of the rotating block (602).

2. The tower crane operation early warning device according to claim 1, characterized in that, The bottom of the hook frame (2) is fixedly connected with a hook.

3. The tower crane operation early warning device according to claim 1, characterized in that, An internal motor (8) is fixedly connected to the top of the tray (3), and an incomplete gear (9) is keyed to the output end of the internal motor (8).

4. The tower crane operation early warning device according to claim 3, characterized in that, The inner circumference of the rotating drum (5) is fixedly connected to an arc rack (7), and the incomplete gear (9) meshes with the arc rack (7).

5. A tower crane operation early warning device according to claim 1, characterized in that, A connecting block (11) is fixedly connected to the inner circumference of the rotating drum (5), and an arc rod (12) is fixedly connected to one side of the connecting block (11). A spring (14) is sleeved on the outer wall of the arc rod (12).

6. A tower crane operation early warning device according to claim 5, characterized in that, The top of the support tray (3) is fixedly connected to a base plate (13), and one end of the arc rod (12) is slidably inserted into the base plate (13). A limit ring (15) is also fixedly connected to this end of the arc rod (12).

7. A tower crane operation early warning device according to claim 1, characterized in that, A balance block (10) is fixedly connected to the top of the support tray (3).

Images