An electromagnetic anti-detachment device and a crane hook

Abstract

This utility model provides an electromagnetic anti-derailment device and a crane hook. The electromagnetic anti-derailment device includes a baffle plate, an electromagnetic drive assembly, and a return spring. One end of the baffle plate is rotatably mounted, and the other end is movably mounted. The baffle plate is positioned inside the opening of the hook body and opens or closes the opening of the hook body through rotation. The electromagnetic drive assembly is connected to the baffle plate and drives the baffle plate to rotate via electromagnetic force to open the opening of the hook body. One end of the return spring is fixed, and the other end is connected to the baffle plate. The return spring provides a return force to the baffle plate to close the opening of the hook body. This electromagnetic anti-derailment device achieves opening and closing by driving the baffle plate to rotate via electromagnetic force. When removing or attaching rigging, there is no need to manually overcome the spring's torque, making operation convenient and improving production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of lifting equipment technology, and more specifically, relates to an electromagnetic anti-derailment device and an overhead crane hook. Background Technology

[0002] Lifting hooks are a common type of lifting equipment in lifting machinery, often suspended from the wire rope of the lifting mechanism by means of pulley blocks and other components. Hooks should be equipped with anti-derailment devices to prevent the hoisted equipment from detaching and causing safety accidents. Continuing to use hooks without anti-derailment devices poses safety hazards during production, especially when lifting long or special items, easily leading to accidents such as hook detachment, falling loads, and personal injury. The most commonly used anti-derailment device works by hinged an anti-derailment plate to the hook's hook rib, then using spring torque to keep the anti-derailment plate pressed tightly against the hook, thus preventing detachment. When it is necessary to hook or remove the rigging or object, the anti-derailment plate is manually pressed down to create a gap between the anti-derailment plate and the hook, allowing the rigging to be hooked or removed. However, this type of anti-derailment device has certain drawbacks:

[0003] (1) When removing the hooked rigging, it is necessary to manually overcome the torque of the spring, especially for large-tonnage hooks, which is quite laborious, inconvenient to operate, and affects production efficiency.

[0004] (2) When hoisting items that are too high or too low, personnel need to climb up or down to hook the rigging during hoisting and use a ladder to remove the rigging, which poses certain safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnetic anti-derailment device and a crane hook, which solves the problem that existing anti-derailment devices require manual overcoming of the spring torque when removing and attaching slings.

[0006] To achieve the above objectives, in a first aspect, this utility model provides an electromagnetic anti-derailment device for overhead crane hooks, the electromagnetic anti-derailment device comprising:

[0007] A baffle plate, one end of which is rotatably disposed and the other end of which is movably disposed, is used to be disposed inside the opening of the hook body and to open or close the opening of the hook body by means of rotation.

[0008] An electromagnetic drive assembly is connected to the baffle plate via electromagnetic force to drive the baffle plate to rotate and open the opening of the hook body.

[0009] A return spring is provided, with one end fixedly disposed and the other end connected to the baffle plate. The return spring is used to provide a return force to the baffle plate to close the opening of the hook body.

[0010] Optionally, the electromagnetic drive assembly includes:

[0011] A ferromagnetic spring, wherein one end of the ferromagnetic spring is fixedly disposed and the other end of the ferromagnetic spring is movably disposed;

[0012] A traction chain, one end of which is connected to the other end of the ferromagnetic spring, and the other end of which is connected to the baffle plate;

[0013] An electromagnetic generating component is used to generate magnetic force to compress the ferromagnetic spring.

[0014] Optionally, the electromagnetic anti-detachment device also includes:

[0015] The housing is used to fix it to the hook body, and the ferromagnetic spring and the electromagnetic generating assembly are both disposed inside the housing.

[0016] Optionally, the electromagnetic anti-detachment device also includes:

[0017] A control chip is disposed within the housing and is electrically connected to the electromagnetic drive assembly. The control chip is used to control the electromagnetic drive assembly.

[0018] The remote control is wirelessly connected to the control chip.

[0019] Optionally, the electromagnetic generating component includes:

[0020] An electromagnet, wherein one end of the ferromagnetic spring is connected to the electromagnet;

[0021] A power source, which is electrically connected to the electromagnet.

[0022] Optionally, the lower surface of the housing is an arc shape that matches the upper surface of the hook body, and the lower surface of the housing is used to connect with the upper surface of the hook body.

[0023] Optionally, the length from one end of the baffle to the other end of the baffle is greater than the length of the opening of the hook body, and the other end of the baffle is used to cooperate with the tail of the hook body.

[0024] Optionally, one end of the baffle is hinged to the housing via a rotating shaft.

[0025] Optionally, the housing is provided with a through hole through which the traction chain passes.

[0026] Secondly, this utility model provides a crane hook, comprising:

[0027] The electromagnetic anti-detachment device described in the first aspect;

[0028] The hook body, the electromagnetic anti-detachment device is installed on the hook body.

[0029] The beneficial effects of this utility model are as follows: It provides an electromagnetic anti-derailment device for overhead crane hooks. The device includes a baffle plate, an electromagnetic drive assembly, and a return spring. One end of the baffle plate is rotatably mounted, and the other end is movably mounted. The baffle plate is positioned inside the opening of the hook body and opens or closes the opening by rotating. The electromagnetic drive assembly is connected to the baffle plate and drives the baffle plate to rotate via electromagnetic force to open the opening of the hook body. One end of the return spring is fixed, and the other end is connected to the baffle plate. The return spring provides a return force to the baffle plate to close the opening of the hook body. This electromagnetic anti-derailment device achieves opening and closing by driving the baffle plate to rotate via electromagnetic force. When removing or attaching the rigging, there is no need to manually overcome the spring's torque, making operation convenient and improving production efficiency.

[0030] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0031] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0032] Figure 1 A schematic structural diagram of an electromagnetic anti-detachment device according to an embodiment of the present invention is shown.

[0033] Figure 2 A schematic structural diagram of an electromagnetic anti-detachment device installed on a hook body according to an embodiment of the present invention is shown.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Baffle plate; 2. Ferromagnetic spring; 3. Traction chain; 4. Electromagnet; 5. Power supply; 6. Return spring; 7. Housing; 8. Control chip; 9. Remote control; 10. Rotating shaft; 11. Hook body. Detailed Implementation

[0036] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0037] Example

[0038] like Figure 1 and 2 As shown, this embodiment provides an electromagnetic anti-derailment device for overhead crane hooks, which includes:

[0039] The baffle 1 has one end rotatably set and the other end movable. The baffle 1 is used to be set inside the opening of the hook body 11 and to open or close the opening of the hook body 11 by rotating.

[0040] An electromagnetic drive assembly is connected to the baffle 1 via a transmission. The electromagnetic drive assembly is used to drive the baffle 1 to rotate by electromagnetic force to open the opening of the hook body 11.

[0041] The return spring 6 has one end fixedly installed and the other end connected to the baffle 1. The return spring 6 is used to provide a return force to the baffle 1 to close the opening of the hook body 11.

[0042] Specifically, the electromagnetic anti-detachment device uses electromagnetic force to drive the baffle 1 to rotate, thereby opening and closing the opening. When taking out or hooking the rigging, there is no need to manually overcome the torque of the spring, making it convenient to operate and improving production efficiency.

[0043] Optionally, the electromagnetic drive assembly includes:

[0044] Ferromagnetic spring 2, one end of ferromagnetic spring 2 is fixed, and the other end of ferromagnetic spring 2 is movable;

[0045] The traction chain 3 has one end connected to the other end of the ferromagnetic spring 2 and the other end connected to the baffle 1.

[0046] Electromagnetic generating component, used to generate magnetic force to compress ferromagnetic spring 2.

[0047] Specifically, when the ferromagnetic spring 2 is compressed, it drives the traction chain 3 to move. The traction chain 3 drives the baffle 1 to rotate, thereby opening the opening of the hook body 11. The spring is made of ferromagnetic material, which has both elastic restoring and magnetic response functions. The compression / release of the spring is achieved by turning the electromagnet 4 on / off, which simplifies the transmission structure and reduces the failure rate.

[0048] Optionally, the electromagnetic anti-detachment device also includes:

[0049] The housing 7 is used to fix the hook body 11. The ferromagnetic spring 2 and the electromagnetic generating assembly are both located inside the housing 7.

[0050] Specifically, the housing 7 serves as a closed cavity, isolating the internal components from the outside world, adapting to high dust and high corrosion environments, and extending the lifespan of the components.

[0051] Optionally, the electromagnetic anti-detachment device also includes:

[0052] Control chip 8 is disposed inside housing 7. Control chip 8 is electrically connected to electromagnetic drive assembly and is used to control electromagnetic drive assembly.

[0053] Remote controller 9 is wirelessly connected to control chip 8.

[0054] Specifically, the opening and closing of the opening of the hook body 11 is controlled by the remote controller 9 to complete the hook attachment and removal, eliminating the safety risks of personnel climbing high or low to attach and remove the hook.

[0055] In this embodiment, the electromagnetic generation component includes:

[0056] Electromagnet 4, one end of ferromagnetic spring 2 is connected to electromagnet 4;

[0057] Power supply 5 is electrically connected to electromagnet 4.

[0058] Optionally, the lower surface of the housing 7 is an arc shape that matches the upper surface of the hook body 11, and the lower surface of the housing 7 is used to connect with the upper surface of the hook body 11.

[0059] Specifically, the lower surface of the housing 7 is arc-shaped to match the upper surface of the hook and is fixed by bolts or welding to avoid the shaking problem of traditional external anti-detachment devices and improve stability.

[0060] Optionally, the length from one end of the baffle 1 to the other end of the baffle 1 is greater than the length of the opening of the hook body 11, and the other end of the baffle 1 is used to cooperate with the tail of the hook body 11.

[0061] Specifically, when the hook body 11 is open, the baffle 1 is interference-fitted with the hook tail to prevent the baffle 1 from rebounding due to the impact of heavy objects, thereby enhancing the reliability of anti-detachment.

[0062] Optionally, one end of the baffle 1 is hinged to the housing 7 via a rotating shaft 10.

[0063] Specifically, a rotating shaft 10 is used instead of a traditional pin to withstand lateral impact and extend service life.

[0064] Optionally, the housing 7 is provided with a through hole through which the traction chain 3 passes.

[0065] Specifically, the housing 7 has a reserved through hole to restrict the movement trajectory of the traction chain 3, prevent the chain from jamming, and improve the reliability of operation under harsh working conditions.

[0066] This embodiment also provides a crane hook, including:

[0067] The electromagnetic anti-detachment device in this embodiment;

[0068] The hook body 11 has an electromagnetic anti-detachment device installed on it.

[0069] Specifically, the electromagnetic anti-derailment device of the overhead crane hook opens and closes by driving the baffle 1 to rotate through electromagnetic force. When taking out or hooking the rigging, there is no need to manually overcome the torque of the spring, making operation convenient and improving production efficiency.

[0070] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An electromagnetic anti-derailment device for use in overhead crane hooks, characterized in that, include: A baffle (1) is provided with one end rotatably and the other end movable. The baffle (1) is used to be set inside the opening of the hook body (11) and to open or close the opening of the hook body (11) by rotating. An electromagnetic drive assembly is connected to the baffle (1) via a transmission connection. The electromagnetic drive assembly is used to drive the baffle (1) to rotate by electromagnetic force to open the opening of the hook body (11). A return spring (6) is provided, with one end of the return spring (6) fixedly installed and the other end of the return spring (6) connected to the baffle (1). The return spring (6) is used to provide a return force to the baffle (1) to close the opening of the hook body (11).

2. The electromagnetic anti-detachment device according to claim 1, characterized in that, The electromagnetic drive assembly includes: A ferromagnetic spring (2), one end of which is fixedly disposed and the other end of which is movably disposed; The traction chain (3) has one end connected to the other end of the ferromagnetic spring (2) and the other end connected to the baffle (1). An electromagnetic generating component is used to generate magnetic force to compress the ferromagnetic spring (2).

3. The electromagnetic anti-detachment device according to claim 2, characterized in that, Also includes: The housing (7) is used to fix the hook body (11) in place. The ferromagnetic spring (2) and the electromagnetic generating component are both disposed inside the housing (7).

4. The electromagnetic anti-detachment device according to claim 3, characterized in that, Also includes: A control chip (8) is disposed inside the housing (7). The control chip (8) is electrically connected to the electromagnetic drive assembly and is used to control the electromagnetic drive assembly. Remote controller (9) is wirelessly connected to the control chip (8).

5. The electromagnetic anti-detachment device according to claim 3, characterized in that, The electromagnetic generation component includes: An electromagnet (4) is provided, and one end of the ferromagnetic spring (2) is connected to the electromagnet (4). Power supply (5), which is electrically connected to the electromagnet (4).

6. The electromagnetic anti-detachment device according to claim 3, characterized in that, The lower surface of the housing (7) is an arc shape that matches the upper surface of the hook body (11), and the lower surface of the housing (7) is used to connect with the upper surface of the hook body (11).

7. The electromagnetic anti-detachment device according to claim 1, characterized in that, The length from one end of the baffle (1) to the other end of the baffle (1) is greater than the length of the opening of the hook body (11), and the other end of the baffle (1) is used to cooperate with the tail of the hook body (11).

8. The electromagnetic anti-detachment device according to claim 3, characterized in that, One end of the baffle (1) is hinged to the housing (7) via a rotating shaft (10).

9. The electromagnetic anti-detachment device according to claim 3, characterized in that, The housing (7) has a through hole through which the traction chain (3) passes.

10. A crane hook, characterized in that, include: The electromagnetic anti-detachment device according to any one of claims 1-8; The hook body (11) is equipped with the electromagnetic anti-detachment device.

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