A lifting hook mechanism

Abstract

This utility model provides a lifting hook mechanism, comprising: a hook; a driving structure disposed on the hook; and a rotating sleeve connected to the driving structure, on which an anti-detachment component is disposed. The driving structure can drive the rotating sleeve to rotate, thereby causing the anti-detachment component to switch between a closed position and an open position, so that the anti-detachment component closes or opens the hook opening on the hook. This utility model eliminates the need for manual opening or closing of the hook opening, making it more convenient to use.

Description

Technical Field

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

[0002] To prevent objects from falling due to detachment during hoisting, anti-detachment structures are typically installed on the hooks. For example, patent application CN202122161709.8 discloses a highly efficient anti-detachment hook that uses the weight of its own long and short anti-detachment rods to seal the opening of the hook body, thus preventing detachment. However, while this structure is simple and effective, removing the object from the hook requires manually rotating the long and short anti-detachment rods to open the hook's opening. If the object is hoisted to a height, workers must manually climb up to manually open the hook, posing significant inconvenience and risk to the hoisting operation. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model designs a lifting hook mechanism that can automatically open and close the hook opening, making it more convenient to use.

[0004] This utility model is achieved through the following technical solution: a lifting hook mechanism, comprising:

[0005] hook up;

[0006] The drive structure is disposed on the hook;

[0007] A rotating sleeve is connected to the driving structure and is provided with an anti-detachment component; the driving structure can drive the rotating sleeve to rotate, thereby causing the anti-detachment component to switch between a closed position and an open position, so that the anti-detachment component closes or opens the hook opening on the hook.

[0008] The driving structure includes an upper mounting plate and a lower mounting plate spaced apart vertically, a fixed sleeve connected between the upper and lower mounting plates, a plug head disposed within the fixed sleeve and capable of moving up and down, and a connecting shaft whose lower end is connected to the plug head and whose upper end extends upward through the upper mounting plate; the rotating sleeve is fitted outside the fixed sleeve, and its inner wall is provided with an inclined guide groove; the fixed sleeve has a vertical slot, and the plug head is provided with a push pin that penetrates the slot and inserts into the guide groove; when the plug head moves up and down, the push pin can move along the guide groove to drive the rotating sleeve to rotate; when the push pin moves to the upper end of the guide groove, the anti-detachment component is driven to the closed position; when the push pin moves to the lower end of the guide groove, the anti-detachment component is driven to the open position.

[0009] The lower surface of the upper mounting plate is provided with a limiting sleeve. After the plug moves upward, it can abut against the limiting sleeve. At this time, the push pin moves to the upper end of the guide groove.

[0010] A spring is provided between the upper mounting plate and the plug.

[0011] The hook tip is provided with a slot, and when the anti-detachment component moves to the closed position, its lower end is engaged in the slot.

[0012] The connecting shaft is provided with a connecting hole.

[0013] The upper mounting plate and the fixing sleeve are detachably connected.

[0014] A thrust bearing is provided between the rotating sleeve and the lower mounting plate.

[0015] Compared with the prior art, the embodiments of this application have the following beneficial effects: When the object is lifted, the plug moves upward, thereby causing the push pin to move upward along the guide groove. The anti-detachment component rotates to the closed position to close the hook opening and prevent the object from falling off the hook. When the object is lowered, the spring pushes the upper mounting plate upward, the push pin moves to the lower end of the guide groove, the anti-detachment component rotates to the open position, and the hook opening is opened, making it easier for the object to fall off the hook. It does not require manual opening or closing of the hook opening, making it more convenient to use. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and constitute a part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute a limitation thereof. In the drawings, the same reference numerals denote the same components.

[0017] Figure 1 This is a schematic diagram of the anti-detachment component of this utility model when the hook opening is closed.

[0018] Figure 2 This is a schematic diagram of the hook opening of this utility model when it is opened.

[0019] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0020] Figure 4 This is an installation diagram of the upper mounting plate, fixing sleeve, and lower mounting plate of this utility model.

[0021] Figure 5 This is a schematic diagram of the plug and limiting sleeve of this utility model.

[0022] Figure 6 This is a cross-sectional view of the rotating sleeve of this utility model.

[0023] The reference numerals in the above figures are as follows: 1-Hook, 2-Lower mounting plate, 3-Rotating sleeve, 4-Fixing sleeve, 5-Plug, 6-Limiting sleeve, 7-Spring, 8-Connecting shaft, 9-Connecting hole, 10-Upper mounting plate, 11-Anti-detachment component, 12-Slot, 13-Push pin, 14-Guide groove, 15-Slot, 16-Object. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] It should be noted that if the terms "first," "second," etc., are used in the specification, claims, and accompanying drawings of this application, they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] In this application, when terms such as "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" are used, they indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0027] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0028] Furthermore, in this application, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Example

[0031] like Figure 1-3 As shown, this embodiment discloses a lifting hook mechanism, which includes: a hook 1, a drive structure, and a rotating sleeve 3. The hook 1 has a hook opening for suspending an object 16. The drive structure is disposed on the top of the hook 1, and the rotating sleeve 3 is connected to the drive structure, on which an anti-detachment component 11 for closing the hook opening of the hook 16 is disposed. The drive structure can drive the rotating sleeve 3 to rotate, thereby causing the rotating sleeve 3 to switch the anti-detachment component 11 between a closed position and an open position, thereby causing the anti-detachment component 11 to close or open the hook opening on the hook 1.

[0032] Specifically, such as Figure 1 As shown, the drive structure includes an upper mounting plate 10 and a lower mounting plate 2 spaced apart vertically, a fixing sleeve 4 connected between the upper mounting plate 10 and the lower mounting plate 2, a plug 5 disposed within the fixing sleeve 4 and capable of moving up and down, and a connecting shaft 8 whose lower end is connected to the plug 5 and whose upper end extends upward through the upper mounting plate 10.

[0033] In a specific configuration, the lower mounting plate 2 is fixedly welded to the top of the hook 1, and the lower end of the fixing sleeve 4 is welded and fixed to the lower mounting plate 2. The upper mounting plate 10 is detachably mounted on the top of the fixing sleeve 4 via bolts, facilitating the installation of other components. The rotating sleeve 3 is fitted onto the outside of the fixing sleeve 4, and its inner wall is provided with an inclined guide groove 14, such as... Figure 6 As shown. A slot 12 is formed on the side wall of the fixing sleeve 4, extending along the axial direction of the fixing sleeve; a push pin 13 is provided on the plug 5, which passes through the slot 12 and inserts into the guide groove 14, as shown. Figure 4 , 5 As shown.

[0034] With the above structure, when the plug 5 moves up and down, the push pin 13 can move along the guide groove 14. Because the guide groove 14 is inclined, the rotating sleeve 3 can be driven to rotate under the cooperation of the push pin 13 and the guide groove 14. That is, when the push pin 13 moves upward along the guide groove 14, the rotating sleeve 3 drives the anti-detachment member 11 to move closer to the hook tip of the hook 1, and when the push pin 13 moves to the upper end of the guide groove 14, the anti-detachment member 11 is just driven to the closed position, thereby closing the hook opening of the hook 1. When the push pin 13 moves downward along the guide groove 14, the rotating sleeve 3 drives the anti-detachment member 11 to move away from the hook tip of the hook 1, and when the push pin 13 moves to the lower end of the guide groove 14, the anti-detachment member 11 is just driven to the open position, thereby opening the hook opening of the hook 1.

[0035] A spring 7 is installed between the upper mounting plate 10 and the plug 5. Specifically, the spring 7 can be sleeved on the connecting shaft 8. When no object 16 is being lifted, the hook assembly consisting of the upper mounting plate 10, rotating sleeve 3, fixed sleeve 4, lower mounting plate 2, and hook 1 is pushed upwards by the force of the spring 7. That is, the plug 5 is positioned at the lower end of the fixed sleeve 4, the push pin 13 is positioned at the lower end of the guide groove 14, and the anti-detachment component 11 is in the open position. Figure 2 As shown; when the object is lifted, the plug 5 is located at the upper end of the fixed sleeve 4, the push pin 13 is located at the upper end of the guide groove 14, the anti-detachment component 11 is in the closed position, and the spring 7 is compressed.

[0036] A connecting shaft 8 is provided with a connecting hole 9, through which the connecting shaft 8 is connected to the lifting equipment. In the initial state, the anti-detachment component 11 is in the open position. When it is necessary to lift the object 16, the lifting equipment controls the hook mechanism to move, causing the lifting lug of the object 16 to engage in the hook opening of the hook 1. When lifting the object, the connecting shaft 8 drives the plug 5 to move upward relative to the rotating sleeve 3, pushing the pin 13 upward along the guide groove 14. The anti-detachment component 11 is driven to the closed position, thereby closing the hook opening of the hook 1 and preventing the object 16 from detaching from the hook opening. Figure 1 As shown. When the object is lowered, due to the absence of the object's weight, the hook assembly consisting of the upper mounting plate 10, rotating sleeve 3, fixed sleeve 4, lower mounting plate 2, and hook 1 is pushed upwards by the pushing force of spring 7. The pushing pin 13 moves to the lower end of the guide groove 14, and the anti-detachment component 11 is in the open position. The lifting equipment appropriately lowers the hook mechanism, and the object can be released from the hook opening of hook 1. It does not require manual opening or closing of the hook opening, making it more convenient to use.

[0037] Alternatively, a limiting sleeve 6 can be provided on the lower surface of the upper mounting plate 10. When the plug head 5 moves upward, it can abut against the limiting sleeve 6. At this time, the push pin 13 just moves to the upper end of the guide groove 14.

[0038] During installation, a thrust bearing can be installed between the rotating sleeve 3 and the lower mounting plate 2, or between the rotating sleeve 3 and the upper mounting plate 10. The thrust bearing can reduce the friction force experienced by the rotating sleeve 3 when it rotates.

[0039] In addition, such as Figure 2 As shown, the hook tip of the hook 1 is provided with a slot 15. When the anti-slip component 11 moves to the closed position, its lower end just fits into the slot 15, which can achieve a better anti-slip effect.

[0040] It should be noted that all features disclosed in this specification, or all steps in all methods or processes disclosed, may be combined in any way, except for mutually exclusive features and / or steps.

[0041] Furthermore, the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. A lifting hook mechanism, characterized in that, include: Hook (1); A drive structure is provided on the hook (1); The rotating sleeve (3) is connected to the driving structure and is provided with an anti-detachment component (11). The driving structure can drive the rotating sleeve (3) to rotate, thereby causing the anti-detachment component (11) to switch between a closed position and an open position, so that the anti-detachment component (11) closes or opens the hook opening on the hook (1).

2. The lifting hook mechanism according to claim 1, characterized in that, The driving structure includes an upper mounting plate (10) and a lower mounting plate (2) spaced apart vertically, a fixing sleeve (4) connected between the upper mounting plate (10) and the lower mounting plate (2), a plug (5) disposed inside the fixing sleeve (4) and capable of moving up and down, and a connecting shaft (8) whose lower end is connected to the plug (5) and whose upper end extends upward through the upper mounting plate (10); the rotating sleeve (3) is fitted outside the fixing sleeve (4), and its inner wall is provided with an inclined guide groove (14); the fixing sleeve (4) has a vertically opened opening. The plug (5) is provided with a push pin (13) that penetrates the slot (12) and is inserted into the guide groove (14); when the plug (5) moves up and down, the push pin (13) can move along the guide groove (14) to drive the rotating sleeve (3) to rotate; when the push pin (13) moves to the upper end of the guide groove (14), the anti-detachment component (11) is driven to the closed position; when the push pin (13) moves to the lower end of the guide groove (14), the anti-detachment component (11) is driven to the open position.

3. The lifting hook mechanism according to claim 2, characterized in that, The lower surface of the upper mounting plate (10) is provided with a limiting sleeve (6). After the plug (5) moves upward, it can abut against the limiting sleeve (6). At this time, the push pin (13) moves to the upper end of the guide groove (14).

4. The lifting hook mechanism according to claim 2, characterized in that, A spring (7) is provided between the upper mounting plate (10) and the plug (5).

5. The lifting hook mechanism according to claim 1, characterized in that, The hook (1) has a slot (15) at its tip. When the anti-detachment component (11) moves to the closed position, its lower end is engaged in the slot (15).

6. The lifting hook mechanism according to claim 2, characterized in that, The connecting shaft (8) is provided with a connecting hole (9).

7. The lifting hook mechanism according to claim 2, characterized in that, The upper mounting plate (10) and the fixing sleeve (4) are detachably connected.

8. The lifting hook mechanism according to claim 2, characterized in that, A thrust bearing is provided between the rotating sleeve (3) and the lower mounting plate (2).

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