Lifting hook for electric lifting device

Abstract

The utility model discloses a lifting hook for an electric lifting device, which belongs to the technical field of lifting devices and comprises a lifting hook frame, an annular block and a lifting hook component, the annular block is slidably connected onto the lifting hook frame in a threaded manner, and the lifting hook component comprises a connecting block, a lifting hook main body and a limiting rod. The connecting blocks are fixedly connected to the annular blocks, the connecting blocks are fixedly connected with the lifting hook bodies, and one ends of the limiting rods are rotationally connected to the connecting blocks, so that the distance between the lifting hook bodies can be adjusted according to needs in the using process of the lifting hook for the lifting device; according to the lifting hook for the lifting device, the limiting rods can be conveniently and stably connected in the using process, compared with a traditional torsional spring connecting mode, the rope limiting stability is improved to a great extent, and therefore the using efficiency and practicability of the lifting hook for the lifting device are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting devices, and in particular relates to a hook for an electric hoisting device. Background Art

[0002] Hoisting refers to the installation and positioning of equipment by cranes or lifting mechanisms. In the transportation industry, some large and heavy equipment or devices are not easy to be placed on transport vehicles or moved to other transport devices manually, so they are often lifted and moved by lifting machinery or lifting devices. In this process, the most important thing is to have a pair of stable hooks;

[0003] During use, the position of the hook on the existing electric lifting device is relatively fixed, and the distance between the hooks cannot be adjusted according to the specifications of the lifting rope, which leads to poor applicability of the hook. At the same time, there are rope limit rods on the existing hooks to prevent the rope from falling off the hook during the lifting process. The existing limit rods are connected by torsion springs, which have poor stability during use and there is a possibility of rope falling off, resulting in the fact that the use efficiency and practicality of the hook for the lifting device cannot be improved. Utility Model Content

[0004] The position of the hook on the existing electric lifting device is relatively fixed during use, and the distance between the hooks cannot be adjusted according to the specifications of the lifting rope, which leads to poor applicability of the hook. At the same time, there is a rope limit rod on the existing hook to prevent the rope from falling off the hook during the lifting process. The existing limit rods are connected by torsion springs, which have poor stability during use and there is a possibility of rope falling off, resulting in the problem that the use efficiency and practicality of the lifting device hook cannot be improved. The utility model provides a hook for an electric lifting device to solve the problems raised in the background technology.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A hook for an electric lifting device includes a hook for a lifting device, wherein the hook for a lifting device includes a hook frame, an annular block and a hook assembly, wherein the annular block is threadedly and slidingly connected to the hook frame, and the hook assembly includes a connecting block, a hook body and a limiting rod, wherein the connecting block is fixedly connected to the annular block, the connecting block and the hook body are fixedly connected, and one end of the limiting rod is rotatably connected to the connecting block.

[0007] Preferably, a connecting slide groove is provided in the hook frame, a sliding groove is provided on the hook frame, the sliding groove is vertically identical to the connecting slide groove, a reverse threaded rod is provided in the sliding groove, two groups of threaded segments in opposite directions are provided on the reverse threaded rod, the reverse threaded rod is rotatably connected in the sliding groove, a driving motor is provided on the side wall of the hook frame, the driving motor is fixedly mounted on the side wall of the hook frame, and the output shaft of the driving motor is connected to one end of the reverse threaded rod.

[0008] Preferably, there are two annular blocks, and the shape and specifications of the annular blocks are adapted to the hook frame and the connecting slide groove in the hook frame. A sliding block is provided at the upper end of the annular block, and the sliding block is fixedly connected to the upper end of the annular block. The shape and specifications of the sliding block are adapted to the sliding groove. The two annular blocks are slidably sleeved on the hook frame through the connecting slide groove, and the threads are slidably sleeved on two groups of different thread segments on the reverse threaded rod through the cooperation of the sliding block and the sliding groove, and the two annular blocks are positioned relatively on the reverse threaded rod.

[0009] Preferably, the limit rod is arranged on the connecting block, and the limit rod is rotatably connected to the connecting block through a rotating shaft. After the connection, the other end of the limit rod contacts the hook tip of the hook body, and a protective cover is arranged on the limit rod, and the protective cover is rotatably sleeved on the limit rod.

[0010] Preferably, a worm wheel is provided in the connecting block, and the worm wheel is fixedly connected to the rotating shaft of the limiting rod. A worm is also provided in the connecting block, and the worm is rotatably connected in the connecting block and meshes with the worm wheel. A micro motor is provided on the side wall of the connecting block, and the micro motor is fixedly mounted on the side wall of the connecting block, and the output shaft of the micro motor is connected to one end of the worm. Beneficial Effects

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The above-mentioned hook for an electric lifting device, through the coordinated use of components such as a hook frame, a reverse threaded rod, an annular block, a connecting block, a hook body, a limit rod, a worm gear and a worm, enables the hook for the lifting device to adjust the distance between the hook bodies as needed during use, so as to greatly improve the lifting applicability of the hook for the lifting device. At the same time, it is also convenient to stably connect the limit rod during use. Compared with the traditional connection method using a torsion spring, it greatly improves the stability of the rope limit, thereby effectively improving the use efficiency and practicality of the hook for the lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the structure of the hook used in the lifting device of the utility model;

[0014] Figure 2 This is a structural exploded view of a hook for a hoisting device in the utility model;

[0015] Figure 3 It is a structural sectional view of the hook assembly in the utility model.

[0016] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0017] In the figure: 100, a hook for a lifting device; 1, a hook frame; 2, a connecting slide; 3, a sliding groove; 4, a reverse threaded rod; 5, a driving motor; 6, a ring block; 7, a sliding block; 8, a hook assembly; 9, a connecting block; 10, a hook body; 11, a limiting rod; 12, a protective cover; 13, a worm gear; 14, a worm; 15, a micro motor. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with a specific utility model. Example

[0019] like Figures 1 to 3 As shown, it is a schematic diagram of the structure of a hook for an electric lifting device according to a preferred embodiment of the utility model. The lifting device hook 100 of this embodiment includes a hook frame 1, an annular block 6 and a hook assembly 8. The annular block 6 is threadedly and slidingly connected to the hook frame 1. The hook assembly 8 includes a connecting block 9, a hook body 10 and a limiting rod 11. The connecting block 9 is fixedly connected to the annular block 6. The connecting block 9 and the hook body 10 are fixedly connected. One end of the limiting rod 11 is rotatably connected to the connecting block 9.

[0020] A connecting slide groove 2 is provided in the hook frame 1, and a sliding groove 3 is provided on the hook frame 1. The sliding groove 3 is vertically identical to the connecting slide groove 2. A reverse threaded rod 4 is provided in the sliding groove 3. Two groups of threaded segments in opposite directions are provided on the reverse threaded rod 4. The reverse threaded rod 4 is rotatably connected in the sliding groove 3. A driving motor 5 is provided on the side wall of the hook frame 1. The driving motor 5 is fixedly mounted on the side wall of the hook frame 1, and the output shaft of the driving motor 5 is connected to one end of the reverse threaded rod 4, so as to facilitate the connection and installation of the annular block 6 during the use of the hook 100 for the lifting device.

[0021] The annular block 6 is provided with two pieces, and the shape and specification of the annular block 6 are adapted to the hook frame 1 and the connecting slide groove 2 in the hook frame 1. The upper end of the annular block 6 is provided with a sliding block 7, and the sliding block 7 is fixedly connected to the upper end of the annular block 6. The shape and specification of the sliding block 7 are adapted to the sliding groove 3. The two annular blocks 6 are slidably sleeved on the hook frame 1 through the connecting slide groove 2, and are threadedly slidably sleeved on two groups of different thread segments on the reverse threaded rod 4 through the coordinated use of the sliding block 7 and the sliding groove 3. The positions of the two annular blocks 6 on the reverse threaded rod 4 are relative, and are used to rotate the reverse threaded rod 4 during the use of the lifting device hook 100, so that the two annular blocks 6 on the hook frame 1 can slide relative to each other, so as to facilitate the subsequent adjustment of the distance between the two hook bodies 10.

[0022] The limiting rod 11 is arranged on the connecting block 9, and the limiting rod 11 is rotatably connected to the connecting block 9 through a rotating shaft. After the limiting rod 11 is connected, the other end contacts the hook tip of the hook body 10. A protective cover 12 is arranged on the limiting rod 11, and the protective cover 12 is rotatably sleeved on the limiting rod 11, so as to facilitate the hooking and limiting of the hook rope during the use of the lifting device hook 100, and at the same time protect the limiting rod 11 when in use.

[0023] A worm gear 13 is provided in the connecting block 9, and the worm gear 13 is fixedly connected to the rotating shaft of the limit rod 11. A worm 14 is also provided in the connecting block 9, and the worm 14 is rotatably connected in the connecting block 9 and meshes with the worm gear 13. A micro motor 15 is provided on the side wall of the connecting block 9, and the micro motor 15 is fixedly mounted on the side wall of the connecting block 9, and the output shaft of the micro motor 15 is connected to one end of the worm 14, which is used to facilitate the rotation control of the limit rod 11 during the use of the lifting device hook 100, so as to improve the overall automation of the lifting device hook 100, and at the same time ensure the connection stability of the limit rod 11.

[0024] In this embodiment, when it is necessary to use the hook 100 for the lifting device, the distance between the hook bodies 10 is first adjusted according to the specifications of the lifting rope, and the driving motor 5 is started to drive the reverse threaded rod 4 to rotate, so that the two annular blocks 6 on the hook frame 1 drive the hook body 10 to slide relative to each other, thereby adjusting the distance between the two hook bodies 10, and then the micro motor 15 is started to drive the worm 14 to rotate, and the worm wheel 13 is driven to rotate under the meshing action, and the worm wheel 13 drives the limit rod 11 to rotate when rotating, so that the limit rod 11 is opened to place the lifting rope on the hook body 10, and then the limit rod 11 is reversed by reversing the micro motor 15. The rope is reset when the positioning rod 11 is closed. The utility model has a simple structure and is easy to use. Through the coordinated use of components such as the hook frame 1, the reverse threaded rod 4, the annular block 6, the connecting block 9, the hook body 10, the limiting rod 11, the worm gear 13 and the worm 14, the lifting hook 100 for the lifting device can adjust the distance between the hook bodies 10 as needed during use, so as to greatly improve the lifting applicability of the lifting hook 100 for the lifting device. At the same time, it is also convenient to stably connect the limiting rod 11 during use. Compared with the traditional connection method using a torsion spring, the stability of the rope limitation is greatly improved, thereby effectively improving the use efficiency and practicality of the lifting hook 100 for the lifting device.

[0025] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A hook for an electric lifting device, comprising a hook for a lifting device (100), Features: The lifting hook (100) for the lifting device comprises a hook frame (1), an annular block (6) and a hook assembly (8); the annular block (6) is threadedly slidably connected to the hook frame (1); the hook assembly (8) comprises a connecting block (9), a hook body (10) and a limiting rod (11); the connecting block (9) is fixedly connected to the annular block (6); the connecting block (9) and the hook body (10) are fixedly connected; and one end of the limiting rod (11) is rotatably connected to the connecting block (9).

2. A hook for an electric lifting device according to claim 1, characterized in that: The hook frame (1) is provided with a connecting slide groove (2), the hook frame (1) is provided with a sliding groove (3), the sliding groove (3) is vertically identical to the connecting slide groove (2), the sliding groove (3) is provided with a reverse threaded rod (4), the reverse threaded rod (4) is provided with two groups of thread segments in opposite directions, the reverse threaded rod (4) is rotatably connected in the sliding groove (3), and the side wall of the hook frame (1) is provided with a driving motor (5), the driving motor (5) is fixedly mounted on the side wall of the hook frame (1), and the output shaft of the driving motor (5) is connected to one end of the reverse threaded rod (4).

3. A hook for an electric lifting device according to claim 2, characterized in that: The annular block (6) is provided with two pieces, and the shape and specification of the annular block (6) are compatible with the hook frame (1) and the connecting slide groove (2) in the hook frame (1). The upper end of the annular block (6) is provided with a sliding block (7), and the sliding block (7) is fixedly connected to the upper end of the annular block (6). The shape and specification of the sliding block (7) are compatible with the sliding groove (3). The two annular blocks (6) are slidably sleeved on the hook frame (1) through the connecting slide groove (2), and are threadedly slidably sleeved on two groups of different thread segments on the reverse threaded rod (4) through the cooperation of the sliding block (7) and the sliding groove (3). The positions of the two annular blocks (6) on the reverse threaded rod (4) are relative.

4. A hook for an electric lifting device according to claim 1, characterized in that: The limiting rod (11) is arranged on the connecting block (9), and the limiting rod (11) is rotatably connected to the connecting block (9) via a rotating shaft. After the limiting rod (11) is connected, the other end of the limiting rod (11) contacts the hook tip of the hook body (10), and the limiting rod (11) is provided with a protective sleeve (12), and the protective sleeve (12) is rotatably sleeved on the limiting rod (11).

5. A hook for an electric lifting device according to claim 4, characterized in that: A worm wheel (13) is arranged in the connecting block (9), and the worm wheel (13) is fixedly connected to the rotating shaft of the limiting rod (11). A worm (14) is also arranged in the connecting block (9), and the worm (14) is rotatably connected in the connecting block (9) and meshes with the worm wheel (13). A micro motor (15) is arranged on the side wall of the connecting block (9), and the micro motor (15) is fixedly mounted on the side wall of the connecting block (9), and the output rotating shaft of the micro motor (15) is connected to one end of the worm (14).

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