A guide hook for a shaft

Abstract

The utility model relates to the technical field of lifting appliance equipment, concretely relates to the vertical shaft is with guide hook, including lifting base body, the middle part of lifting base body is provided with the pulley block, the below of lifting base body is provided with the lifting appliance, the periphery of lifting base body is provided with the support cantilever, the end of support cantilever is provided with horizontal guide wheel and longitudinal guide wheel, utilize the adhesion of support cantilever and the lateral wall of vertical shaft to promote the lifting stability of hook, and through horizontal guide wheel and longitudinal guide wheel to assist the travel, and through reset spring to reduce the interference of the uneven surface of vertical shaft to the equipment operation, still through guide wheel to limit and tension the rope, avoid the steel wire rope of super lift hoisting equipment to appear to sway and twist, further promote the stability of operation.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a guide hook for vertical shafts. Background Technology

[0002] In mining, underground engineering construction, and urban utility tunnel construction, shafts serve as crucial vertical passages, often requiring hook-type equipment for the vertical lifting and transport of heavy objects. Currently, traditional shaft hooks typically only possess basic lifting and suspension functions. In actual operation, factors such as the shaft's spatial structure, the flatness of the shaft wall, and the operating characteristics of the lifting equipment generally result in insufficient stability. Specifically, when lifting in a shaft, traditional hooks lack an effective support structure that conforms to the shaft wall, relying solely on the traction of the lifting rope for positioning. Even slight rope swaying can cause the hook to shift, leading to collisions and friction with the shaft wall. This not only causes wear on the hook or the shaft wall but may also affect the suspension stability of the heavy object due to the impact force, potentially even posing safety hazards. Furthermore, traditional hooks lack a suitable guiding and adjusting structure designed for variations in shaft wall flatness. When the shaft wall has protrusions, depressions, or other unevenness, the hook's path is easily disrupted, leading to fluctuations in lifting speed or even hook jamming, further increasing operational risks.

[0003] On the other hand, in high-lift lifting equipment used to drive the hook's lifting and lowering, the wire rope is prone to swaying and twisting during long-distance lifting and lowering due to factors such as its own weight, air resistance, and equipment vibration. Traditional hooks lack effective limiting and tensioning structures for the wire rope, so the swaying and twisting of the wire rope are directly transmitted to the hook, causing the hook to sway synchronously with the wire rope. This not only makes it difficult to accurately control the lifting and lowering position of the hook, but may also lead to serious safety accidents such as rope entanglement and breakage due to excessive twisting of the wire rope, posing a great threat to the safety of workers and equipment. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a guide hook for vertical shafts. It utilizes a support cantilever that fits snugly against the side wall of the shaft to enhance the hook's lifting stability. Horizontal and longitudinal guide wheels assist in movement, while a return spring reduces interference from uneven shaft surfaces during operation. Furthermore, guide wheels limit and tension the rope, preventing swaying and twisting of the wire rope in overlifted equipment, further improving operational stability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a guide hook for a vertical shaft, comprising a lifting base, a pulley block provided in the middle of the lifting base, a lifting device provided below the lifting base, a supporting cantilever provided around the lifting base, and a transverse guide wheel and a longitudinal guide wheel provided at the end of the supporting cantilever.

[0006] As a further improvement to the above technical solution:

[0007] There are two transverse guide wheels, which are located on both sides of the support cantilever. The support cantilever is provided with a mounting base for installing the transverse guide wheels.

[0008] The longitudinal guide wheels are two in number and are located above and below the support cantilever, respectively. The upper and lower surfaces of the support cantilever are provided with brackets.

[0009] The lower part of the bracket is provided with a rotatable connection to the support cantilever, and the upper part is provided with a return spring connected to the support cantilever.

[0010] The pulley assembly includes two lifting pulleys symmetrically distributed about the centerline of the elevator body, and guide wheels are provided on the outer sides of the lifting pulleys.

[0011] The lifting body is provided with a mounting base for installing guide wheels, and the upper end of the mounting base is located above the lifting pulley.

[0012] The number of supporting cantilever arms is multiple, and they are evenly distributed along the circumference of the lifting base 1.

[0013] The beneficial effects of this utility model embodiment are as follows: The guide hook for the vertical shaft includes a lifting base, a pulley block is provided in the middle of the lifting base, a lifting device is provided below the lifting base, and a support cantilever is provided around the lifting base. The end of the support cantilever is provided with a transverse guide wheel and a longitudinal guide wheel. The lifting stability of the hook is improved by the support cantilever fitting against the side wall of the vertical shaft. The transverse and longitudinal guide wheels assist in the movement, and the return spring reduces the interference of unevenness on the vertical shaft surface on the operation of the equipment. At the same time, the guide wheels limit and tension the rope, preventing the wire rope of the overlift lifting equipment from shaking and twisting, further improving the stability of the operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0015] Figure 2 This is a top view of Embodiment 1 of this utility model;

[0016] Figure 3 This is a top view of Embodiment 2 of this utility model.

[0017] In the diagram: 1. Lifting base; 2. Pulley block; 3. Lifting device; 4. Support cantilever; 5. Horizontal guide wheel; 6. Longitudinal guide wheel; 7. Fixed seat; 8. Bracket; 9. Return spring; 10. Lifting pulley; 11. Guide wheel; 12. Mounting seat. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] Example 1

[0020] like Figure 1-2 As shown, the guide hook for the vertical shaft in this embodiment includes a lifting base 1, a pulley block 2 is provided in the middle of the lifting base 1, the lifting base 1 serves as the basic frame of the hook, the pulley block 2 for lifting function is installed in the middle, and a lifting device 3 for suspending heavy objects is connected below.

[0021] To ensure the stability of the hook when it is raised and lowered in the shaft, the lifting base 1 is equipped with support cantilever 4 on all four sides, and each support cantilever 4 is equipped with a horizontal guide wheel 5 and a vertical guide wheel 6 for guidance.

[0022] To ensure the lateral guiding effect, the lateral guide wheels 5 are arranged symmetrically, with two lateral guide wheels 5 on each support cantilever 4, located on both sides of the support cantilever 4 respectively; the support cantilever 4 is also specially equipped with a fixing seat 7, and the lateral guide wheels 5 are stably installed on the support cantilever 4 through the fixing seat 7.

[0023] The longitudinal guide wheels 6 are also symmetrically arranged, with two longitudinal guide wheels 6 on each support cantilever 4, located above and below the support cantilever 4 respectively. To enable the installation and flexible adjustment of the longitudinal guide wheels 6, brackets 8 are provided on both the upper and lower surfaces of the support cantilever 4, and the longitudinal guide wheels 6 are mounted on the brackets 8. Furthermore, the mounting structure of the brackets 8 is adjustable: the lower part of the bracket 8 is rotatably connected to the support cantilever 4, which can accommodate a certain angle of adjustment; the upper part of the bracket 8 is connected to the support cantilever 4 through a return spring 9, which provides a return force to the bracket 8, ensuring that the longitudinal guide wheels 6 always maintain a stable guiding state, which can adapt to the uneven working conditions of the shaft edge and the area around the guide frame.

[0024] The pulley block 2 consists of two lifting pulleys 10, which are symmetrically distributed about the centerline of the lifting base 1 to evenly bear the lifting load. To optimize the rope guiding path, a guide wheel 11 is provided on the outer side of each lifting pulley 10. At the same time, a mounting seat 12 is specially provided on the lifting base 1 for installing the guide wheel 11, and the upper end of the mounting seat 12 is higher than the lifting pulley 10, so as to ensure that the guide wheel 11 can accurately guide the rope and avoid interference between the rope and other components.

[0025] Example 2

[0026] The similarities to Example 1 will not be repeated here, the differences being: Figure 3 As shown, there are 3 supporting cantilever arms 4. The lifting base 1 is circular, and the 3 supporting cantilever arms 4 are evenly distributed around the lifting base 1. In actual use, the number of supporting cantilever arms 4 can be selected according to the diameter and weight of the lifting base 1.

[0027] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0030] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A guide hook for vertical shafts, comprising a lifting base (1), characterized in that: The lifting base (1) is provided with a pulley block (2) in the middle, and a lifting device (3) is provided below the lifting base (1). Supporting cantilever (4) is provided around the lifting base (1), and a transverse guide wheel (5) and a longitudinal guide wheel (6) are provided at the end of the supporting cantilever (4).

2. The guide hook for vertical shafts according to claim 1, characterized in that: There are two transverse guide wheels (5) located on both sides of the support cantilever (4), and the support cantilever (4) is provided with a fixing seat (7) for mounting the transverse guide wheels (5).

3. The guide hook for vertical shafts according to claim 1, characterized in that: There are two longitudinal guide wheels (6) located above and below the support cantilever (4), and brackets (8) are provided on the upper and lower surfaces of the support cantilever (4).

4. The guide hook for vertical shafts according to claim 3, characterized in that: The lower part of the bracket (8) is provided with a rotatable connection to the support cantilever (4), and the upper part is provided with a return spring (9) connected to the support cantilever (4).

5. The guide hook for vertical shafts according to claim 1, characterized in that: The pulley assembly (2) includes two lifting pulleys (10) symmetrically distributed about the center line of the lifting base (1), and guide wheels (11) are provided on the outer side of the lifting pulleys (10).

6. The guide hook for vertical shafts according to claim 5, characterized in that: The elevator body (1) is provided with a mounting seat (12) for mounting guide wheels (11), and the upper end of the mounting seat (12) is located above the lifting pulley (10).

7. The guide hook for vertical shafts according to any one of claims 1-6, characterized in that: The number of the supporting cantilever (4) is multiple, and they are evenly distributed along the circumference of the lifting base 1.

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