Lifting hook device

Abstract

The utility model discloses a lifting hook device which comprises a lifting frame, a pulley block, a lifting hook, a balance arm and at least two lifting rope fixing pieces, the pulley block is rotationally connected to the lifting frame, the lifting hook is rotationally connected to the lifting frame, a heavy object can be hung, a lifting rope for paying off of a winding drum can be wound on the pulley block, and the balance arm is hinged to the lifting frame and opposite to the lifting hook. The lifting rope fixing parts are hinged to the balance arm, the lifting rope is fixed on the balance arm after the pulley block is wound, the lifting rope can reduce the suspension force of the lifting rope by winding the lifting rope on the pulley block, and the balance arm is opposite to the lifting hook, so that the stress of the lifting hook and the stress of the balance arm are on the same straight line, and the pulley block is stable; and a plurality of groups of lifting rope fixing pieces are arranged on the balance arm, so that the lifting hook device can be simultaneously suspended through a plurality of strands of lifting ropes, and even if one strand of lifting rope is broken, other lifting ropes can also suspend the lifting hook device, so that the falling of the lifting hook device and a lifted object is avoided, and the construction safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a hook device. Background Art

[0002] The hook device is mainly used to lift heavy objects on lifting equipment.

[0003] For example, a self-locking lifting hook disclosed in announcement number CN205906930U includes a hook and a pulley block connected to the hook. The hook is used to hang heavy objects, and the pulley block is used for winding the lifting rope to reduce the traction force of the lifting rope. The lifting hook also realizes self-locking of the suspended heavy objects by setting an electromagnetic device and a limit block.

[0004] Although the lifting hook can facilitate the lifting of heavy objects, the lifting rope is subjected to large tension and friction and is prone to breakage during the lifting process. Once the lifting rope breaks, the hook and the heavy object will fall, posing a major safety hazard. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and propose a hook device to solve the technical problem in the prior art that the hook device is prone to fall due to the breakage of the lifting rope, which poses a great safety hazard.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a hook device, comprising:

[0008] hanger;

[0009] a pulley assembly rotatably connected to the hanger;

[0010] a hook rotatably connected to the hanger;

[0011] a balancing arm hinged to the hanger and opposite to the hook; and

[0012] At least two suspension rope fixing members, each of which is hinged to the balance arm and is used to fix the suspension rope.

[0013] In some embodiments, the hanger includes a support frame and a supply shaft, the hook is fixed to the lower end of the support frame, the supply shaft is fixed to the support frame, and the pulley group includes a plurality of movable pulleys, each of the movable pulleys is separated on both sides of the support frame and is rotatably connected to the supply shaft.

[0014] In some embodiments, the balancing arm extends in a radial direction of the supply shaft, and the balancing arm is hinged to the supply shaft.

[0015] In some embodiments, the hanger also includes a connecting arm, which is arranged opposite to the hook, the lower end of the connecting arm is hinged to the supply shaft, and the balance arm is hinged to the upper end of the connecting arm and extends toward the axial direction of the supply shaft.

[0016] In some embodiments, the hanger further includes a crossbeam, the crossbeam is fixed to the lower end of the support frame, and the hook is rotatably connected to the crossbeam.

[0017] In some embodiments, the crossbeam is provided with a thrust bearing, and the hook passes through the crossbeam and is connected to the thrust bearing.

[0018] In some embodiments, a rotating seat is provided at the upper end of the hook, and the rotating seat is fixed to the thrust bearing and fits with the beam.

[0019] In some embodiments, the hanger further includes a protective cover, which is fixed to the support frame and the supply shaft and encloses the pulley set.

[0020] In some embodiments, the balancing arm is a triangular structure, one end of the balancing arm is hinged to the hanger, and each of the hanging rope fixing members is respectively installed at the other two ends of the balancing arm.

[0021] In some embodiments, the sling rope fixing member includes a wedge-shaped sleeve and a rope clamp, the wedge-shaped sleeve is hinged to the balance arm, and the rope clamp is fixed to the wedge-shaped sleeve for fixing the sling rope.

[0022] The sling hook device of the present invention is provided with a hanger, a pulley block, a hook, a balancing arm and at least two rope fixings, the pulley block is rotatably connected to the hanger, and the hook is rotatably connected to the hanger, so that a heavy object can be suspended, and the rope of the reel-line can be wound around the pulley block, the balancing arm is hinged to the hanger and opposite to the hook, and each rope fixing is hinged to the balancing arm. After the pulley block is wound around, the rope will be fixed on the balancing arm, and the winding of the rope can reduce the suspension force of the rope, because the balancing arm is opposite to the hook, the force on the hook and the force on the balancing arm are in the same straight line, thereby stabilizing the pulley block, and by arranging multiple sets of rope fixings on the balancing arm, multiple ropes can be fixed at the same time, and the hook device can be suspended by multiple ropes at the same time. Even if one of the ropes breaks, the hook device can be suspended by other ropes while keeping the pulley block balanced, thereby avoiding the hook device and the suspended object from falling, and ensuring construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a hook device provided by an embodiment of the utility model;

[0024] Figure 2It is a side view of the hook device provided by an embodiment of the utility model;

[0025] Figure 3 It is a front view of a hook device provided by another embodiment of the utility model.

[0026] Reference numerals in the figures:

[0027] 10-hanger 11-support frame 12-supply shaft

[0028] 13—Connecting arm 14—Beam 15—Protective cover

[0029] 20 - pulley block 21 - movable pulley 30 - hook

[0030] 31 - rotating seat 40 - balancing arm 50 - hanging rope fixing part

[0031] 51 - wedge sleeve 52 - rope clamp 111 - yoke plate

[0032] 141—Thrust bearing. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] In order to solve the technical problem in the prior art that the hook device is prone to causing the hook and heavy objects to fall due to the breakage of the lifting rope, which poses a great safety hazard, the utility model provides a hook device, which can realize suspension with more than two lifting ropes, and when one of the lifting ropes breaks, stable suspension can be achieved through other lifting ropes, thereby avoiding the hook and heavy objects from falling, and eliminating the safety hazard caused by the breakage of the lifting rope.

[0035] In order to achieve the above technical purpose, the embodiment of the present utility model provides a hook device, such as Figure 1-3 As shown, it includes a hanger 10, a pulley block 20, a hook 30, a balance arm 40 and at least two rope fixing members 50. The pulley block 20 is rotatably connected to the hanger 10; the hook 30 is rotatably connected to the hanger 10 for suspending objects; the balance arm 40 is hinged to the hanger 10 and is opposite to the hook 30; each rope fixing member 50 is hinged to the balance arm 40 for fixing the rope.

[0036] Specifically, the hook device is provided with a hanger 10, a pulley block 20, a hook 30, a balance arm 40 and at least two rope fixing members 50. The pulley block 20 is rotatably connected to the hanger 10, and the hook 30 is rotatably connected to the hanger 10, so that a heavy object can be suspended. By rotating the hook 30 and the hanger 10, the suspension angle of the hook 30 can be adjusted to hook the heavy object. The rope of the reel can be wound around the pulley block 20, and the balance arm 40 is hinged to the hanger 10 and opposite to the hook 30. Each rope fixing member 50 is hinged to the balance arm 40. After the rope is wound around the pulley block 20, it will be fixed on the balance arm 40. The rope can be relieved by winding around the pulley block 20. The suspending force of the lifting rope, since the balancing arm 40 is opposite to the hook 30, makes the force on the hook 30 and the force on the balancing arm 40 in the same straight line, thereby stabilizing the pulley block 20, and by arranging multiple sets of lifting rope fixing parts 50 on the balancing arm 40, multiple lifting ropes can be fixed at the same time, and the hook device can be suspended at the same time by multiple lifting ropes. Even if one lifting rope breaks, the end of the balancing arm 40 falls, and at the same time, one end of the balancing arm 40 articulated hanger 10 rotates to balance the hanger 10, and then the hook device can be suspended by other lifting ropes while keeping the pulley block 20 balanced, thereby avoiding the hook device and the hanging object from falling, and ensuring construction safety.

[0037] It can be understood that the hanger 10 can be any frame structure for mounting the pulley assembly 20 .

[0038] In one embodiment, Figure 1-3 As shown, the hanger 10 includes a support frame 11 and a supply shaft 12, the hook 30 is fixed to the lower end of the support frame 11, the supply shaft 12 is fixed to the support frame 11, and the pulley group 20 includes a plurality of movable pulleys 21, each movable pulley 21 is separated on both sides of the support frame 11 and is rotatably connected to the supply shaft 12.

[0039] Specifically, the support frame 11 can be used for installing the hook 30 and the rotating shaft 12. The movable pulley 21 is separated on both sides of the support frame 11, so that the force on the hanger 10 can be kept balanced. Therefore, through a simple structure, while achieving the balance of the hook 30, the balanced installation of the movable pulley 21 can also be achieved.

[0040] In this embodiment, Figure 1 and 3 As shown, there are four movable pulleys 21 , two of which are respectively provided on both sides of the support frame 11 , and the supply shaft 12 is provided with bearings. The movable pulleys 21 are mounted on the bearings and are rotationally connected to the supply shaft 12 through the bearings.

[0041] In this embodiment, Figure 1-3As shown, the support frame 11 includes two yoke plates 111 arranged opposite to each other, and the rotating shaft 12 passes through the two yoke plates 111. The rotating shaft 12 can fix the yoke plates 111 while the movable pulley 21 can be installed.

[0042] It is understandable that the balance arm 40 can be any shape such as a bar or a circle.

[0043] It can be understood that the rope fixing member 50 can be any fastener that can fix the end of the rope, and the number of rope fixing members 50 can be any plurality. The rope fixing members 50 are symmetrically arranged on the balance arm 40 so that both sides of the balance arm 40 can maintain balance during the suspension process.

[0044] In one embodiment, Figure 1 and 3 As shown, the balancing arm 40 is a triangular structure, one end of the balancing arm 40 is hinged to the hanger 10, and each rope fixing member 50 is respectively installed at the other two ends of the balancing arm 40. Specifically, the triangle has a relatively stable structure, which prevents the balancing arm 40 from being deformed due to excessive force.

[0045] In this embodiment, Figure 1 and 3 As shown, there are two hanging rope fixing members 50 , which are respectively disposed at the left and right ends of the balance arm 40 .

[0046] In one embodiment, Figure 1-2 As shown, the balancing arm 40 extends in the radial direction of the supply shaft 12, and the balancing arm 40 is hinged to the supply shaft 12. Specifically, the balancing arm 40 can be hinged to the hanger 10 by being directly hinged to the supply shaft 12.

[0047] In one embodiment, Figure 3 As shown, the hanger 10 further includes a connecting arm 13, which is disposed opposite the hook 30. The lower end of the connecting arm 13 is hingedly connected to the supply shaft 12, and the balancing arm 40 is hingedly connected to the upper end of the connecting arm 13 and extends in the axial direction of the supply shaft 12. Specifically, by providing the connecting arm 13, the balancing arm 40 can be hingedly connected to the hanger 10 and the balancing arm 40 can be extended axially, thereby facilitating the connection between the suspension rope and the suspension rope fixing member 50.

[0048] It is understandable that the hanger 10 can be provided with a structure such as a socket so that the hook 30 can rotate with the hanger 10 .

[0049] In one embodiment, Figure 1-3As shown, the hanger 10 further includes a crossbeam 14, which is fixed to the lower end of the support frame 11, and the hook 30 is rotatably connected to the crossbeam 14. Specifically, the crossbeam 14 can provide the hook 30 with rotation while strengthening the structure of the hanger 10.

[0050] In this embodiment, the crossbeam 14 is fixed to the lower ends of the two yoke plates 111 , so as to ensure that the two yoke plates 111 are stable while allowing the hook 30 to rotate.

[0051] In one embodiment, Figure 1 As shown, the crossbeam 14 is provided with a thrust bearing 141, and the hook 30 passes through the crossbeam 14 and is connected to the thrust bearing 141. Specifically, the hook 30 can achieve stable rotation of the hook 30 by passing through the crossbeam 14 and connecting the thrust bearing 141.

[0052] In one embodiment, Figure 1 As shown, a rotating seat 31 is provided at the upper end of the hook 30. The rotating seat 31 is fixed to the thrust bearing 141 and fits with the crossbeam 14. Specifically, the rotating seat 31 cooperates with the thrust bearing 141 to achieve a rotational connection between the hook 30 and the crossbeam 14. The fit between the rotating seat 31 and the crossbeam 14 ensures the stability of the rotating seat 31 during rotation.

[0053] In this embodiment, Figure 1 As shown, the edge of the rotating seat 31 is provided with an engaging protrusion, and the crossbeam 14 is provided with an annular rotation groove, and the engaging protrusion is provided in the annular rotation groove.

[0054] In one embodiment, Figure 1-3 As shown, the hanger 10 further includes a protective cover 15, which is fixed to the support frame 11 and the supply shaft 12 and encloses the pulley block 20. Specifically, the protective cover 15 can protect the movable pulley 21 and prevent the suspension rope from jumping out of the groove.

[0055] In one embodiment, Figure 2-3 As shown, the rope fixing member 50 includes a wedge-shaped sleeve 51 and a rope clamp 52. The wedge-shaped sleeve 51 is hingedly connected to the balance arm 40, and the rope clamp 52 is fixed to the wedge-shaped sleeve 51 to secure the rope. Specifically, the rope fixing member 50 is hingedly connected to the balance arm 40 via the wedge-shaped sleeve 51, and the rope is secured via the rope clamp 52. After the rope is wound around the pulley assembly 20, it is passed through the wedge-shaped sleeve 51 and finally secured by the rope clamp 52.

[0056] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A hook device, characterized in that: include: hanger; a pulley assembly rotatably connected to the hanger; a hook rotatably connected to the hanger; a balancing arm, hinged to the hanger and opposite to the hook; as well as At least two suspension rope fixing members, each of which is hinged to the balance arm and is used to fix the suspension rope.

2. The hook device according to claim 1, characterized in that: The hanger includes a support frame and a supply shaft, the hook is fixed to the lower end of the support frame, the supply shaft is fixed to the support frame, and the pulley group includes a plurality of movable pulleys, each of which is separated on both sides of the support frame and rotatably connected to the supply shaft.

3. The hook device according to claim 2, characterized in that: The balancing arm extends in a radial direction of the supply shaft, and the balancing arm is hinged to the supply shaft.

4. The hook device according to claim 2, characterized in that: The hanger also includes a connecting arm, which is arranged opposite to the hook, and the lower end of the connecting arm is hinged to the supply shaft. The balance arm is hinged to the upper end of the connecting arm and extends toward the axial direction of the supply shaft.

5. The hook device according to claim 2, characterized in that: The hanger also includes a crossbeam, which is fixed to the lower end of the support frame, and the hook is rotatably connected to the crossbeam.

6. The hook device according to claim 5, characterized in that: The crossbeam is provided with a thrust bearing, and the hook passes through the crossbeam and is connected to the thrust bearing.

7. The hook device according to claim 6, characterized in that: A rotating seat is provided at the upper end of the hook, and the rotating seat is fixed to the thrust bearing and fits with the crossbeam.

8. The hook device according to claim 2, characterized in that: The hanger also includes a protective cover, which is fixed to the support frame and the supply shaft and encloses the pulley group.

9. The hook device according to any one of claims 1 to 8, characterized in that: The balancing arm is a triangular structure, one end of the balancing arm is hinged to the hanger, and the rope fixing members are respectively installed at the other two ends of the balancing arm.

10. The hook device according to any one of claims 1 to 8, characterized in that: The sling rope fixing member includes a wedge-shaped sleeve and a rope clamp. The wedge-shaped sleeve is hinged to the balance arm, and the rope clamp is fixed to the wedge-shaped sleeve for fixing the sling rope.

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