Lifting hook for preventing inclined pulling and inclined lifting of crane

Abstract

The utility model discloses a lifting hook for a crane capable of preventing inclined pulling and inclined lifting, which aims to solve the problem that the lifting hook cannot be automatically reset to be in a vertical state when the lifting hook is inclined, and comprises a lifting block, a spherical groove is formed in the lifting block, the inner wall of the spherical groove is connected with a spherical block in a sliding manner, the inner wall of the spherical groove is provided with a stabilizing groove, and the stabilizing groove is connected with the spherical block in a sliding manner. A stabilizing ring is slidably connected to the inner wall of the stabilizing groove, the inner side face of the stabilizing ring is connected with the outer surface of a spherical block, and a hook is fixedly connected to the bottom face of the spherical block. Through cooperation of the hanging block, the spherical groove, the spherical block, the stabilizing groove and the stabilizing ring and the hook, by means of the mechanical connection principle of the spherical block and the spherical groove, when a heavy object hung on the hook inclines, the spherical block can deflect in the spherical groove under the influence of gravity, and the hook can be kept in a vertical state all the time through the design; the stability and safety of hoisting operation are effectively improved, and it is ensured that accidental inclination cannot occur in the heavy object hoisting process.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting hooks, in particular to a lifting hook for a crane that prevents skew pulling and oblique lifting. Background Technique

[0002] A crane hook refers to a device installed on a crane for hoisting and transporting objects. It is usually made of high-strength steel, has the ability to carry heavy loads, and is designed in various shapes and specifications to adapt to different loads and working conditions. The crane hook plays a crucial role in lifting operations, and its design should consider safety, reliability, and operational convenience to ensure effective lifting work at various construction sites.

[0003] Application No. 202322231181.6 discloses a crane hook for preventing skew pulling and oblique lifting, which includes a suspension seat and a hook body installed at the bottom of the suspension seat. The suspension seat is provided with a cableway for connecting the suspension cable. A gyroscope and a processor for processing the data collected by the gyroscope are arranged inside the suspension seat, and an alarm is arranged on the outer wall of the suspension seat. When the data collected by the gyroscope is greater than the preset threshold of the processor, the alarm gives an alarm. This hook is internally provided with a gyroscope for detecting whether the hook is in a vertical state, and is equipped with an alarm, which can give an alarm when the hook is in a non-vertical state, prompting the operator to adjust the position and state of the hook to keep it in a vertical state before lifting the object, thus preventing skew pulling and oblique lifting.

[0004] The above solution has deficiencies in use. When the hook is tilted, it cannot automatically reset the hook to a vertical state. For this reason, we propose a crane hook for preventing skew pulling and oblique lifting to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a crane hook for preventing skew pulling and oblique lifting, which solves the problem that when the hook is tilted, it cannot automatically reset the hook to a vertical state.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crane hook for preventing skew pulling and oblique lifting includes a lifting block. A spherical groove is formed inside the lifting block. A spherical block is slidably connected to the inner wall of the spherical groove. A stabilizing groove is formed in the inner wall of the spherical groove. A stabilizing ring is slidably connected to the inner wall of the stabilizing groove. The inner side surface of the stabilizing ring is connected to the outer surface of the spherical block. The bottom surface of the spherical block is fixedly connected to a hook.

[0008] In a further embodiment, a U-shaped plate is fixedly connected to the upper surface of the lifting block. A telescopic rod is hinged to the bottom surface of the U-shaped plate. The bottom end of the telescopic rod is hinged to the outer surface of the spherical block.

[0009] In a further embodiment, a ring of pull rods is fixedly connected to the outer surface of the hanging block, and the tops of the two groups of pull rods are fixedly connected to a pull plate together.

[0010] In a further embodiment, two connecting hole blocks are fixedly connected to the upper surface of the pull plate, and the two groups of connecting hole blocks are arranged in a ring.

[0011] In a further embodiment, the top and bottom of the spherical block extend above and below the hanging block respectively.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Through the cooperation of the hanging block, spherical groove, spherical block, stable groove and stable ring with the hook provided in this device, using the mechanical connection principle of the spherical block and the spherical groove, when the hook is hung with a heavy object and tilts, the spherical block will deflect inside the spherical groove under the influence of gravity. This design enables the hook to always maintain a vertical state, effectively improving the stability and safety of the hoisting operation, and ensuring that no accidental tilt will occur during the process of lifting heavy objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a crane hook for preventing skewed pulling and slanting lifting.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the front sectional view of the hanging block of a crane hook for preventing skewed pulling and slanting lifting.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the spherical block of a crane hook for preventing skewed pulling and slanting lifting.

[0017] In the figure: 1, hanging block; 2, pull rod; 3, pull plate; 4, connecting hole block; 5, U-shaped plate; 6, telescopic rod; 7, hook; 8, spherical groove; 9, stable groove; 10, spherical block; 11, stable ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 - 3 , in the present utility model, a hook for a crane to prevent skew pulling and oblique lifting includes a lifting block 1. An annularly arranged pull rod 2 is fixedly connected to the outer surface of the lifting block 1. The tops of two groups of pull rods 2 are jointly fixedly connected to a pull plate 3. The cooperation of the pull rod 2 and the pull plate 3 can play a role in lifting the lifting block 1.

[0021] Two groups of connection hole blocks 4 are fixedly connected to the upper surface of the pull plate 3. The two groups of connection hole blocks 4 are annularly arranged. The connection hole blocks 4 facilitate the staff to connect the lifting block 1 with the crane and can achieve the effect of balancing and stabilizing the lifting block 1.

[0022] A spherical groove 8 is opened inside the lifting block 1. A spherical block 10 is slidably connected to the inner wall of the spherical groove 8. The spherical block 10 can deflect inside the spherical groove 8 and can also prevent the spherical block 10 from separating from the lifting block 1.

[0023] The top end and the bottom end of the spherical block 10 respectively extend above and below the lifting block 1, which can ensure the stability of the connection between the spherical block 10 and the lifting block 1 and prevent the spherical block 10 from separating from the lifting block 1.

[0024] A U-shaped plate 5 is fixedly connected to the upper surface of the lifting block 1. A telescopic rod 6 is hinged to the bottom surface of the U-shaped plate 5. The bottom end of the telescopic rod 6 is hinged to the outer surface of the spherical block 10. The cooperation of the U-shaped plate 5 and the telescopic rod 6 can further lift and stabilize the spherical block 10 and can also prevent the spherical block 10 from deflecting greatly.

[0025] A stabilizing groove 9 is opened on the inner wall of the spherical groove 8. A stabilizing ring 11 is slidably connected to the inner wall of the stabilizing groove 9. The inner side surface of the stabilizing ring 11 is connected to the outer surface of the spherical block 10. The connection between the stabilizing ring 11 and the stabilizing groove 9 can limit the rotation of the spherical block 10 to prevent the spherical block 10 from deflecting greatly.

[0026] A hook 7 is fixedly connected to the bottom surface of the spherical block 10. When the hook 7 hangs a heavy object, due to the influence of gravity, the spherical block 10 will deflect inside the spherical groove 8, thereby ensuring that the hook 7 can be in a vertical state and ensuring the stability of the hook 7 when hanging the heavy object.

[0027] The working principle of the present utility model is as follows: When in use, the connection hole block 4 is connected to a crane through a connecting rope. When the hook 7 holds a heavy object, once a large inclination occurs, the hook 7 will cause the spherical block 10 to deflect inside the spherical groove 8. At the same time, the movement of the spherical block 10 will cause the stabilizing ring 11 to rotate inside the stabilizing groove 9, so that the hook 7 can always maintain a vertical state, effectively avoiding inclination when lifting heavy objects and ensuring the safety and stability of the lifting operation.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0029] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 crane hook for preventing skewing and tilting, characterized in that: The invention comprises a hanging block (1), wherein a spherical groove (8) is provided inside the hanging block (1), a spherical block (10) is slidably connected to the inner wall of the spherical groove (8), a stabilizing groove (9) is provided on the inner wall of the spherical groove (8), a stabilizing ring (11) is slidably connected to the inner wall of the stabilizing groove (9), the inner side surface of the stabilizing ring (11) is connected to the outer surface of the spherical block (10), and the bottom surface of the spherical block (10) is fixedly connected to a hook (7).

2. The anti-skew and slant crane hook according to claim 1, characterized in that: The upper surface of the hanging block (1) is fixedly connected to a U-shaped plate (5), the bottom surface of the U-shaped plate (5) is hingedly connected to a telescopic rod (6), and the bottom end of the telescopic rod (6) is hingedly connected to the outer surface of the spherical block (10).

3. The anti-skew and slant crane hook according to claim 1, characterized in that: The outer surface of the hanging block (1) is fixedly connected to pull rods (2) arranged in a ring, and the top ends of two groups of pull rods (2) are commonly fixedly connected to a pull plate (3).

4. The anti-skew and slant crane hook according to claim 3, characterized in that: Two groups of connection hole blocks (4) are fixedly connected to the upper surface of the pull plate (3), and the two groups of connection hole blocks (4) are arranged in a ring shape.

5. The anti-skew and slant crane hook according to claim 1, characterized in that: The top end of the spherical block (10) and the bottom end of the spherical block (10) extend to the top of the hanging block (1) and the bottom of the hanging block (1) respectively.

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