A new electric remote control unhooker

Abstract

The utility model discloses a novel electric remote control unhooker, including hook body, hanging claw installation slot, butt joint axle, claw and remote control drive mechanism, and the hanging claw installation slot sets at the bottom center place of hook body, and the butt joint axle rotation is connected in the hanging claw installation slot. In the utility model through electric control hydraulic push rod drive driving link, and then through lever structure drive first linkage link, second linkage link whole linkage, make abutment block promote two adjacent claw relative rotation, until its both one end mutual abutment, and at this time driving link and linkage link between combination constitute lever dead point, and cooperate strong magnet and firmly adsorb the connecting place, avoid needing electric control hydraulic push rod and continuously exert force, compared with traditional motor drive mode, electric control hydraulic push rod can output greater force, this makes the claw when clamping material can obtain far more than motor drive's clamping force, ensures that material is firmly locked in the hoisting process.

Description

Technical Field

[0001] This utility model relates to a hook release device, specifically a novel electric remote-controlled hook release device, belonging to the field of hook release device technology. Background Technology

[0002] The hook is a core component of lifting machinery used for suspending and hoisting heavy objects. It is usually made of high-strength steel and has a hook-shaped structure. It is commonly used in industrial production, construction, and logistics transportation. In traditional hoisting operations, the unhooking operation often requires manual assistance. When unhooking manually, the operator needs to be in close contact with the lifting equipment and the heavy object. If the heavy object shakes, the wire rope breaks, or the equipment malfunctions, collisions, crushing, and other safety accidents can easily occur. However, the electric remote control unhooking device can complete the unhooking through remote control without the need for personnel to approach the danger zone, fundamentally reducing safety risks.

[0003] However, most existing electric remote control unhooking devices have various problems. For example, in the remote control automatic unhooking device disclosed in announcement number CN210505247U, although it uses an electric motor to drive a power shaft, and the power shaft meshes with the connecting shaft at the top of the hook through a steering wheel, and the connecting shaft drives the rotating shaft to control the rotation of the hook, so as to realize remote control of hook attachment and detachment, which can reduce labor intensity and improve work efficiency, it has problems such as complex structure and inconvenient transmission structure maintenance. However, in this technical solution and most remote control unhooking devices at present, there are still some problems.

[0004] In related technologies, most of the current mainstream electric control and remote control unhooking devices use motors as the driving components. Due to the inherent limitations of the output torque of motors, it is difficult to provide sufficient clamping force when driving the grippers to complete the clamping and locking action. This defect is particularly prominent when lifting heavy or irregularly shaped materials. The grippers may loosen or even accidentally disengage due to insufficient clamping force, which directly poses a great threat to the personal safety of operators and the integrity of equipment and materials, and has significant safety hazards. Utility Model Content

[0005] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing a novel electric remote-controlled unhooking device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel electric remote-controlled unhooking device includes a hook body, a claw mounting groove, a docking shaft, claws, and a remote-controlled drive mechanism. The claw mounting groove is located at the center of the bottom of the hook body. The docking shaft is rotatably connected to the claw mounting groove. The claws are fixed in the docking shaft and are arranged symmetrically in two. The remote-controlled drive mechanism is located in the hook body and between two adjacent claws.

[0008] The remote control drive mechanism includes an electro-hydraulic push rod, a contact block, a first contact surface, a second contact surface, and a linkage assembly. The electro-hydraulic push rod is fixed at the center of the hook body. The contact block is connected to the bottom of the electro-hydraulic push rod through the linkage assembly and slides against two adjacent lifting claws. The first contact surface is inclinedly disposed on both sides of the contact block, and the second contact surface is inclinedly disposed on the side of the lifting claw near the contact block. The first contact surface and the second contact surface slide against each other.

[0009] As a further embodiment of this utility model: the linkage component includes a fixed plate, a first linkage rod and a second linkage rod. The fixed plate is fixed inside the hook body. One end of the first linkage rod and the second linkage rod are rotatably connected to each other. The other end of the first linkage rod is rotatably connected to the fixed plate. The top of the abutment block is recessed with a groove, and the other end of the second linkage rod is rotatably connected to the groove.

[0010] As a further embodiment of this utility model: the linkage assembly further includes a support seat and a drive rod. The support seat is fixed to the telescopic part of the electro-hydraulic push rod. One end of the drive rod is rotatably connected to the support seat, and the other end is rotatably connected to the connection between the first linkage rod and the second linkage rod, and together they form a lever structure.

[0011] As a further improvement of this utility model: the hook body is also provided with a powerful magnet, two of which are symmetrically arranged and located on both sides of the electro-hydraulic push rod.

[0012] As a further improvement of this utility model: limit holes are provided on both sides of the lifting claw mounting groove, and a spring is provided in the limit hole, with one end of the spring abutting against the lifting claw.

[0013] As a further embodiment of this utility model: the hook body is provided with a screw hole, which is connected to the limiting hole, and a lead screw is threaded in the screw hole, with one end of the lead screw abutting against the other end of the spring.

[0014] The beneficial effects of this utility model are:

[0015] In this invention, an electro-hydraulic push rod drives the active rod in linkage, which in turn drives the first and second linkage rods in linkage through a lever structure. This causes the abutment block to push two adjacent lifting claws to rotate relative to each other until one end of the two claws abuts against each other. At this point, the active rod and the linkage rod together form a dead point of the lever, and a strong magnet firmly attracts the connection point, avoiding the need for the electro-hydraulic push rod to exert continuous force. Compared with the traditional motor drive method, the electro-hydraulic push rod can output a greater force, which allows the lifting claws to obtain a clamping force far exceeding that of the motor drive when gripping materials. This ensures that the materials are firmly locked during the lifting process, greatly reducing the risk of materials falling off due to insufficient clamping force of the lifting claws, and providing a more reliable safety guarantee for lifting operations.

[0016] Furthermore, during the clamping process, there is no need for the electro-hydraulic actuator to continuously output power, avoiding problems such as pressure fluctuations, energy waste, and component wear caused by continuous stress that may occur when the electro-hydraulic actuator works for a long time. At the same time, the self-locking performance of the linkage component is stable and reliable. Even when facing interference such as vibration and impact in complex lifting environments, it can still ensure that the position of the abutment block and the lifting claw is fixed, further enhancing the stability and safety of the unhooker during operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the electro-hydraulic push rod and its overall connection structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the lifting claw and its overall connection structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the remote control drive mechanism of this utility model;

[0021] In the diagram: 1. Hook body, 2. Claw mounting slot, 3. Connecting shaft, 4. Claw, 5. Remote control drive mechanism, 51. Electro-hydraulic push rod, 52. Abutment block, 53. First abutment surface, 54. Second abutment surface, 55. Fixing plate, 56. First linkage rod, 57. Second linkage rod, 58. Support seat, 59. Driving rod, 510. Powerful magnet, 6. Limiting hole, 7. Spring, 8. Lead screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1, as Figures 1 to 4 As shown, a novel electric remote-controlled unhooking device includes a hook body 1, a claw mounting groove 2, a docking shaft 3, claws 4, and a remote-controlled drive mechanism 5. The claw mounting groove 2 is located at the center of the bottom of the hook body 1. The docking shaft 3 is rotatably connected to the claw mounting groove 2. The claws 4 are fixed in the docking shaft 3 and are arranged symmetrically in two. The remote-controlled drive mechanism 5 is located in the hook body 1 and is located between two adjacent claws 4.

[0024] The remote control drive mechanism 5 includes an electro-hydraulic push rod 51, an abutment block 52, a first abutment surface 53, a second abutment surface 54, and a linkage assembly. The electro-hydraulic push rod 51 is fixed at the center of the hook body 1. The abutment block 52 is connected to the bottom of the electro-hydraulic push rod 51 through the linkage assembly and slides against the two adjacent claws 4. The first abutment surface 53 is inclinedly arranged on both sides of the abutment block 52, and the second abutment surface 54 is inclinedly arranged on the side of the claw 4 near the abutment block 52. The first abutment surface 53 and the second abutment surface 54 slide against each other.

[0025] The linkage assembly includes a fixed plate 55, a first linkage rod 56 and a second linkage rod 57. The fixed plate 55 is fixed inside the hook body 1. One end of the first linkage rod 56 and the second linkage rod 57 are rotatably connected to each other. The other end of the first linkage rod 56 is rotatably connected to the fixed plate 55. The top of the abutment block 52 is recessed with a groove. The other end of the second linkage rod 57 is rotatably connected to the groove.

[0026] The linkage assembly also includes a support seat 58 and a drive rod 59. The support seat 58 is fixed to the telescopic part of the electro-hydraulic push rod 51. One end of the drive rod 59 is rotatably connected to the support seat 58, and the other end is rotatably connected to the connection of the first linkage rod 56 and the second linkage rod 57, and together they form a lever structure.

[0027] The hook body 1 is also equipped with a powerful magnet 510. There are two powerful magnets 510 symmetrically arranged, and the two powerful magnets 510 are located on both sides of the electro-hydraulic push rod 51.

[0028] In this invention, the electro-hydraulic push rod 51 drives the active rod 59 in linkage, which in turn drives the first linkage rod 56 and the second linkage rod 57 in linkage through the lever structure. This causes the abutment block 52 to push the two adjacent lifting claws 4 to rotate relative to each other until one end of the two claws abuts against each other. At this time, the active rod 59 and the linkage rod form a dead point of the lever, and the connection is firmly attracted by the strong magnet 510, avoiding the need for the electro-hydraulic push rod 51 to exert continuous force. Compared with the traditional motor drive method, the electro-hydraulic push rod 51 can output a greater force, which allows the lifting claws 4 to obtain a clamping force far exceeding that of the motor drive when clamping materials. This ensures that the materials are firmly locked during the lifting process, greatly reducing the risk of materials falling off due to insufficient clamping force of the lifting claws 4, and providing a more reliable safety guarantee for lifting operations.

[0029] Furthermore, during the clamping process of the lifting claw 4, there is no need for the electro-hydraulic push rod 51 to continuously output power to maintain it, which avoids the problems of pressure fluctuation, energy waste, and component wear caused by continuous force that may occur when the electro-hydraulic push rod 51 works for a long time. At the same time, the self-locking performance of the linkage component is stable and reliable. When facing interference such as vibration and impact in complex lifting environments, it can still ensure that the position of the abutment block 52 and the lifting claw 4 is fixed, further enhancing the stability and safety of the unhooker during operation.

[0030] Example 2, as Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0031] Limiting holes 6 are provided on both sides of the lifting claw mounting groove 2. A spring 7 is installed in the limiting hole 6. One end of the spring 7 abuts against the lifting claw 4. When the spring 7 abuts against the lifting claw 4, it can push the lifting claw 4 to open quickly.

[0032] The hook body 1 is provided with a screw hole, which is connected to the limiting hole 6. A screw rod 8 is threaded in the screw hole. One end of the screw rod 8 abuts against the other end of the spring 7. The distance between the spring 7 and the lifting claw 4 is adjusted by the screw rod 8, so that the spring 7 can be adjusted according to actual needs.

[0033] When using this release device, in the initial state, the lifting claw 4 and the abutment block 52 are separated. At this time, the lifting claw 4 is open. When lifting materials, the drive electro-hydraulic push rod 51 drives the fixed plate 55 to move. At this time, the drive rod 59 drives the first linkage rod 56 and the second linkage rod 57 to move synchronously. Under the leverage force, the abutment block 52 moves between the two adjacent lifting claws 4 and pushes the two adjacent lifting claws 4 to rotate synchronously in the opposite direction until the bottoms of the two lifting claws 4 abut against each other and lock. When locked, the drive rod 59, the first linkage rod 56, and the second linkage rod 57 together form the dead point of the lever. At the same time, the connection of the first linkage rod 56 and the second linkage rod 57 is magnetically attracted to the strong magnet 510. When it is necessary to release the materials, the telescopic rod of the drive electro-hydraulic push rod 51 can be moved in the opposite direction by remote control.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel electric remote-controlled unhooking device, comprising a hook body (1), a claw mounting groove (2), a docking shaft (3), a claw (4), and a remote-controlled drive mechanism (5), characterized in that, The claw mounting groove (2) is located at the center of the bottom of the hook body (1). The docking shaft (3) is rotatably connected in the claw mounting groove (2). The claws (4) are fixed in the docking shaft (3) and there are two symmetrically arranged. The remote control drive mechanism (5) is located in the hook body (1) and between two adjacent claws (4). The remote control drive mechanism (5) includes an electro-hydraulic push rod (51), an abutment block (52), a first abutment surface (53), a second abutment surface (54), and a linkage assembly. The electro-hydraulic push rod (51) is fixed at the center of the hook body (1). The abutment block (52) is connected to the bottom of the electro-hydraulic push rod (51) through the linkage assembly and slides against the two adjacent claws (4). The first abutment surface (53) is inclined on both sides of the abutment block (52), and the second abutment surface (54) is inclined on the side of the claw (4) near the abutment block (52). The first abutment surface (53) and the second abutment surface (54) slide against each other.

2. The novel electric remote-controlled unhooking device according to claim 1, characterized in that: The linkage assembly includes a fixed plate (55), a first linkage rod (56), and a second linkage rod (57). The fixed plate (55) is fixed inside the hook body (1). One end of the first linkage rod (56) and the second linkage rod (57) are rotatably connected to each other. The other end of the first linkage rod (56) is rotatably connected to the fixed plate (55). The top of the abutment block (52) is recessed and has a groove. The other end of the second linkage rod (57) is rotatably connected to the groove.

3. The novel electric remote-controlled unhooking device according to claim 2, characterized in that: The linkage assembly also includes a support (58) and an active rod (59). The support (58) is fixed to the telescopic part of the electro-hydraulic push rod (51). One end of the active rod (59) is rotatably connected to the support (58), and the other end is rotatably connected to the connection between the first linkage rod (56) and the second linkage rod (57), and together they form a lever structure.

4. A novel electric remote-controlled unhooking device according to claim 3, characterized in that: The hook body (1) is also provided with a powerful magnet (510). There are two powerful magnets (510) symmetrically arranged, and the two powerful magnets (510) are located on both sides of the electro-hydraulic push rod (51).

5. A novel electric remote-controlled unhooking device according to claim 1, characterized in that: Limiting holes (6) are provided on both sides of the lifting claw mounting groove (2), and a spring (7) is provided in the limiting hole (6). One end of the spring (7) abuts against the lifting claw (4).

6. A novel electric remote-controlled unhooking device according to claim 5, characterized in that: The hook body (1) is provided with a screw hole, which is connected to the limiting hole (6), and a screw rod (8) is threaded in the screw hole. One end of the screw rod (8) abuts against the other end of the spring (7).

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