An automatic unhooking device for a European-style double-girder crane

Abstract

This utility model relates to the technical field of automatic unhooking, and in particular to an automatic unhooking device for a European-style double-girder crane. It has a simple structure and can realize the functions of closing the hook and automatic hooking, saving labor costs and improving operational safety. It includes a lifting base, a hook, a vertical rod, a closing component and an unhooking component. The top of the hook is connected to the vertical rod, which is located below the lifting base. The closing component is installed on the hook, and the unhooking component is installed on the left side of the hook.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic unhooking, and in particular to an automatic unhooking device for a European-style double-girder crane. Background Technology

[0002] When using a crane to lift materials, conventional hooks require manual unhooking, which increases the risk of injury to personnel, especially since some materials are tall and heavy. Existing technology publication CN219950227U discloses an automatic unhooking device for cranes, including a kit and a hook, with the top of the hook connected to the bottom of the kit. It also includes a pushing device, a housing, a support shaft, and multiple sets of first gear teeth. The bottom of the housing has a through groove through which the hook passes. The support shaft is rotatably mounted on the inner wall of the housing at both ends. The kit is fixedly fitted onto the outer wall of the support shaft. The multiple sets of first gear teeth are circumferentially arranged on the outer wall of the support shaft. A pushing device is located in the upper part of the housing, which drives the kit to rotate counterclockwise through its interaction with the multiple sets of first gear teeth. However, this device occupies a large space, and the hook lacks a closing mechanism, making it prone to the risk of the heavy object falling off. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an automatic unhooking device for European-style double-girder cranes that has a simple structure, can realize the functions of closing the hook and automatic hooking, saves labor costs, and improves operational safety.

[0004] This utility model discloses an automatic unhooking device for a European-style double-girder crane, comprising a lifting base, a hook, a vertical rod, a closing assembly, and a unhooking assembly. The vertical rod is connected to the top of the hook and is located below the lifting base. The closing assembly is installed on the hook, and the unhooking assembly is installed on the left side of the hook. The closing assembly can achieve the purpose of closing the hook to prevent the goods from falling off and improve safety. The unhooking assembly can realize the automatic hook-up function, thereby achieving the purpose of saving labor costs and improving operational safety.

[0005] Preferably, the closure assembly includes a bracket, a motor, two gears, and two arc-shaped closure plates. The motor is mounted on the front end of the vertical rod via the bracket. A rotating shaft is provided at the output end of the motor and is rotatably mounted on the lower part of the vertical rod. Gears are installed at both ends of the rotating shaft. Storage slots are provided at both ends of the hook. The two arc-shaped closure plates are slidably installed in the storage slots. Teeth are provided on the outer wall of the arc-shaped closure plates, and the gears mesh with the teeth. When the motor is started, it drives the gears to rotate through the rotating shaft. The gears drive the arc-shaped closure plates to move within the storage slots through the teeth, thereby achieving the purpose of closing the hook, preventing the goods from falling off, and improving safety.

[0006] Preferably, the storage slot has a limiting groove inside, and the arc-shaped closed plate has a limiting slide bar inside; when the arc-shaped closed plate moves, it drives the limiting slide bar to rotate in the limiting groove, ensuring the connection strength between the arc-shaped closed plate and the hook and ensuring stability.

[0007] Preferably, the unhooking assembly includes a support column, a rotating shaft, two unhooking plates, a push shaft, and an electric telescopic rod. The support column is installed on the upper part of the left outer wall of the hook. The rotating shaft is rotatably mounted on the support column. Unhooking plates are installed at both ends of the rotating shaft. The push shaft is installed on the top of the unhooking plates. One end of the electric telescopic rod is rotatably mounted on the left side wall of the vertical column. The telescopic end of the electric telescopic rod is rotatably connected to the push shaft. When the electric telescopic rod is activated, it pushes the unhooking plates to rotate on the rotating shaft through the push shaft, so that the lower end of the unhooking plates pushes the lifting rope out of the hook, realizing the automatic hooking function, thereby achieving the purpose of saving labor costs and improving operational safety.

[0008] Preferably, it also includes an arc-shaped block, which is installed inside the hook on the right side; the arc-shaped block can guide the lifting rope when the release plate pushes the lifting rope, and at the same time, the lifting rope is located in the center of the hook during lifting, which is convenient for use.

[0009] Preferably, the lifting base has a rotating cavity inside, the top of the vertical rod extends into the rotating cavity, and a protrusion is installed thereon; the protrusion can ensure the connection strength between the lifting base and the vertical rod, and ensure the stability during hoisting.

[0010] Preferably, a connecting column is installed on the upper side of the interior of the rotating cavity, and a limit ring is installed on the side of the connecting column located outside the lifting seat; the connecting column is connected to the crane, and the connecting column enables the lifting seat to rotate after the hook is loaded with goods, which facilitates the adjustment of the direction and position of the goods and improves practicality.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the closing component can achieve the purpose of closing the hook, preventing the goods from falling off and improving safety; the unhooking component can realize the automatic hook-up function, thereby saving labor costs and improving operational safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 3 This is a front view structural diagram of the present invention;

[0015] Figure 4 This is a three-dimensional structural diagram of the rear of this utility model;

[0016] Figure 5This is a cross-sectional structural diagram of the present invention;

[0017] The following are labels in the attached diagram: 1. Lifting seat; 2. Lifting hook; 3. Bracket; 4. Motor; 5. Gear; 6. Arc-shaped closing plate; 7. Vertical rod; 8. Support column; 9. Rotating shaft; 10. Unhooking plate; 11. Push shaft; 12. Electric telescopic rod; 13. Arc-shaped block; 14. Protrusion; 15. Connecting column; 16. Limiting ring. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0019] like Figures 1 to 5 As shown, a vertical rod 7 is connected to the top of the hook 2, and the vertical rod 7 is located below the hanging base 1. The motor 4 is installed at the front end of the vertical rod 7 via a bracket 3. A rotating shaft is provided at the output end of the motor 4, and the rotating shaft is rotatably installed at the lower part of the vertical rod 7. Gears 5 are installed at both ends of the rotating shaft. Storage slots are provided at both ends of the hook 2, and two arc-shaped closed plates 6 are slidably installed in the storage slots. Teeth are provided on the outer wall of the arc-shaped closed plates 6, and the gears 5 mesh with the teeth. A limit groove is provided inside the storage slot, and a limit strip is provided inside the arc-shaped closed plates 6. The support column 8 is installed on the left side of the hook 2. On the upper part of the outer side wall, a rotating shaft 9 is rotatably installed on the support column 8. A release plate 10 is installed at both ends of the rotating shaft 9. A push shaft 11 is installed on the top of the release plate 10. One end of the electric telescopic rod 12 is rotatably installed on the left side wall of the vertical rod 7. The telescopic end of the electric telescopic rod 12 is rotatably connected to the push shaft 11. An arc-shaped block 13 is installed on the right side inside the hook 2. A rotating cavity is opened inside the hanging seat 1. The top of the vertical rod 7 extends into the rotating cavity and is equipped with a protrusion 14. A connecting column 15 is installed on the upper side inside the rotating cavity. A limit ring 16 is installed on the side of the connecting column 15 located outside the hanging seat 1.

[0020] The connecting column 15 is connected to the crane. The connecting column 15 allows the lifting base 1 to rotate after the goods are hooked on the hook 2, facilitating the adjustment of the goods' direction and position, and improving practicality. The protrusion 14 ensures the connection strength between the lifting base 1 and the vertical rod 7, guaranteeing stability during lifting. The starting motor 4 drives the gear 5 to rotate through the shaft. The gear 5 drives the arc-shaped closing plate 6 to move within the storage groove, achieving the purpose of closing the hook, preventing the goods from falling off, and improving safety. When the arc-shaped closing plate 6 moves, it drives the limit slide. The bar rotates within the limiting groove to ensure the connection strength between the arc-shaped closed plate 6 and the hook 2, thus ensuring stability. The electric telescopic rod 12 is activated to push the release plate 10 to rotate on the rotating shaft 9 via the push shaft 11, causing the lower end of the release plate 10 to push the lifting rope out of the hook 2, thereby realizing the automatic hooking function, which saves labor costs and improves operational safety. The arc-shaped block 13 can guide the lifting rope when the release plate 10 pushes it, and at the same time, the lifting rope is located in the center of the hook 2 during hoisting, which is convenient for use.

[0021] like Figures 1 to 5 As shown, this utility model discloses an automatic unhooking device for a European-style double-girder crane. During operation, the connecting column 15 is connected to the crane. The connecting column 15 allows the lifting seat 1 to rotate after the hook 2 is loaded with goods. The protrusion 14 ensures the connection strength between the lifting seat 1 and the vertical rod 7. The starting motor 4 drives the gear 5 to rotate through the rotating shaft. The gear 5 drives the arc-shaped closing plate 6 to move in the receiving groove through the teeth, which can achieve the purpose of closing the hook and prevent the goods from falling off. The starting electric telescopic rod 12 pushes the unhooking plate 10 to rotate on the rotating shaft 9 through the push shaft 11, so that the lower end of the unhooking plate 10 pushes the lifting rope out of the hook 2, realizing the automatic hooking function. The arc-shaped block 13 can guide the lifting rope when the unhooking plate 10 pushes the lifting rope. At the same time, the lifting rope is located in the center position of the hook 2 during hoisting, which is convenient for use.

[0022] The motor 4 of the automatic unhooking device for a European-style double-girder crane of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic unhooking device for a European double-beam crane, characterized in that, It includes a lifting seat (1), a hook (2), a vertical rod (7), a closing assembly and a disengaging assembly. The top of the hook (2) is connected to the vertical rod (7), which is located below the lifting seat (1). The closing assembly is installed on the hook (2), and the disengaging assembly is installed on the left side of the hook (2).

2. An automatic unhooking device for a European two-beam crane according to claim 1, characterized in that The closing assembly includes a bracket (3), a motor (4), two gears (5) and two arc-shaped closing plates (6). The motor (4) is mounted on the front end of the vertical rod (7) through the bracket (3). The output end of the motor (4) is provided with a rotating shaft, which is rotatably mounted on the lower part of the vertical rod (7). Gears (5) are installed at both ends of the rotating shaft. Storage slots are provided at both ends of the hook (2). The two arc-shaped closing plates (6) are slidably mounted in the storage slots. Teeth are provided on the outer wall of the arc-shaped closing plates (6), and the gears (5) mesh with the teeth.

3. An automatic unhooking device for a European two-beam crane according to claim 2, characterized in that The storage slot has a limiting groove inside, and the arc-shaped closed plate (6) has a limiting strip inside.

4. An automatic unhooking device for a European two-beam crane according to claim 1, characterized in that The unhooking assembly includes a support column (8), a rotating shaft (9), two unhooking plates (10), a push shaft (11), and an electric telescopic rod (12). The support column (8) is installed on the upper part of the left outer wall of the hook (2). The rotating shaft (9) is rotatably installed on the support column (8). The unhooking plates (10) are installed at both ends of the rotating shaft (9). The push shaft (11) is installed on the top of the unhooking plates (10). One end of the electric telescopic rod (12) is rotatably installed on the left side wall of the vertical rod (7). The telescopic end of the electric telescopic rod (12) is rotatably connected to the push shaft (11).

5. An automatic unhooking device for a European two-beam crane according to claim 1, characterized in that, It also includes an arc-shaped block (13), which is installed on the right side inside the hook (2).

6. An automatic unhooking device for a European two-beam crane according to claim 1, characterized in that, The hanging base (1) has a rotating cavity inside, the top of the vertical rod (7) extends into the rotating cavity, and a protrusion (14) is installed thereon.

7. An automatic unhooking device for a European two-beam crane according to claim 6, characterised in that A connecting column (15) is installed on the upper side of the interior of the rotating cavity, and a limit ring (16) is installed on the side of the connecting column (15) located outside the hanging base (1).

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