Underwater hook device with unhooking function

Abstract

The utility model provides an underwater hook device with an unhooking function, which comprises a hook base cover, a lifting reset mechanism, an unhooking anti-dropping mechanism, a hook and a limiting shaft, the lifting reset mechanism is elastically mounted on the hook base cover in a sliding manner, and the unhooking anti-dropping mechanism and the hook are rotatably mounted on the hook base cover; the hoisting reset mechanism is rotationally connected with the unhooking anti-falling mechanism; the limiting shaft is fixedly mounted on the inner side of the hook base cover; the hoisting device is efficient in resetting, stable, anti-falling and convenient to unhook, the hoisting stand column is automatically reset through the spring, and the working efficiency is improved. And the anti-falling buckle ensures stable lifting, and the accident risk is reduced. Unhooking can be easily achieved by pulling the connecting rod, and operation is simplified. The limiting shaft limits the movement range of the mechanism and enhances the system stability. Underwater operation is not needed, and the safety risk is remarkably reduced. Efficient, reliable, convenient and safe are integrated, the structure is compact, installation is easy, adaptability is high, and operation errors are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hooks, and particularly relates to a hook device with a hook-unhooking function for underwater use. Background Art

[0002] Surface / underwater operations cover a wide range of mechanical activities carried out in water-related environments, such as underwater mapping, precision detection, professional installation, and salvage. When conducting these operations, various advanced mechanical equipment and tools, such as unmanned boats and underwater robots, are required to ensure the smooth completion of tasks.

[0003] However, during the process of deploying and retrieving surface / underwater equipment, traditional lifting hooks are often cumbersome and restricted by the environment. The hooks used in traditional cranes or other lifting equipment usually require manual disassembly and hooking operations, which not only require personnel to go down to the water surface or perform diving operations but also face huge safety risks and relatively low efficiency.

[0004] Therefore, it is very necessary to invent a hook device with a hook-unhooking function for underwater use. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a hook device with a hook-unhooking function for underwater use, which includes a hook base cover, a lifting and reset mechanism, a hook-unhooking and anti-detaching mechanism, a hook, and a limit shaft. The lifting and reset mechanism is slidably and elastically installed on the hook base cover, and the hook-unhooking and anti-detaching mechanism and the hook are rotatably installed; the lifting and reset mechanism is rotationally connected to the hook-unhooking and anti-detaching mechanism; the limit shaft is fixedly installed inside the hook base cover;

[0006] The lifting and reset mechanism includes a lifting column, a lifting ring, a limit disk, a spring, and a connecting head. The lifting column slidably passes through the hook base cover, and the lifting ring and the limit disk are respectively fixedly installed at the upper and lower ends of the lifting column. The limit disk is elastically connected to the hook base cover through the spring; the connecting head fixedly installed below the limit disk is rotationally connected to the hook-unhooking and anti-detaching mechanism;

[0007] The hook-unhooking and anti-detaching mechanism includes a mounting shaft, an anti-detaching buckle, a driving link, and a pulling link. The mounting shaft is rotatably installed on the hook base cover; the anti-detaching buckle is fixedly installed on the mounting shaft, and one end of the driving link is fixedly installed on the anti-detaching buckle. Both ends of the pulling link are respectively rotationally connected to the driving link and the connecting head.

[0008] Preferably, a through hole allowing the lifting column to slidably pass through is opened at the top of the upper part of the hook base cover, and an outward convex side ear allowing the mounting shaft to be rotatably installed is provided on one side of the lower part of the hook base cover.

[0009] Preferably, the lifting rings and the limiting disks installed at the upper and lower ends of the lifting column cannot pass through the through holes provided in the hook base cover.

[0010] Preferably, the anti-disengagement buckle is composed of an installation cylinder and a buckle body. The anti-disengagement buckle and the driving connecting rod are not flush with each other, and there is an included angle between them.

[0011] Preferably, the limiting shaft is located below the lifting reset mechanism and on one side of the connection between the driving connecting rod and the pulling connecting rod. The limiting shaft allows blocking the movement of the driving connecting rod and the pulling connecting rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model combines the advantages of an efficient reset mechanism, a reliable anti-disengagement design, a convenient unhooking operation, the safety guarantee of the limiting shaft, a compact structure easy to install, strong adaptability, and reduction of operation errors. Specifically, the lifting reset mechanism utilizes the elastic force of the spring to realize the automatic reset of the lifting column, greatly improving the working efficiency. The detachable anti-disengagement mechanism ensures the stability of the hook during lifting through the anti-disengagement buckle, reducing the accident risk. In addition, the hook can be easily unhooked by pulling the pulling connecting rod, simplifying the operation steps. At the same time, the setting of the limiting shaft effectively limits the movement range of the mechanism, enhancing the stability and reliability of the system. There is no need for underwater operation, greatly reducing the safety risks faced by underwater operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 is another schematic diagram of the overall structure of the utility model.

[0016] Figure 3 is a schematic diagram of the partial sectional structure of the utility model.

[0017] In the figure:

[0018] Hook base cover 1, lifting reset mechanism 2, lifting column 21, lifting ring 22, limiting disk 23, spring 24, connecting head 25, detachable anti-disengagement mechanism 3, mounting shaft 31, anti-disengagement buckle 32, driving connecting rod 33, pulling connecting rod 34, hook 4, limiting shaft 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. 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 making creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the embodiments, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 elements. 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 circumstances.

[0021] As shown in the attached Figure 1 to the attached Figure 3 figures:

[0022] A hook device with a hook-unhooking function for underwater use provided by the present utility model includes a hook base cover 1, a lifting and reset mechanism 2, a detachable hook anti-disengagement mechanism 3, a hook 4, and a limit shaft 5. The lifting and reset mechanism 2 is slidably and elastically installed on the hook base cover 1, and the detachable hook anti-disengagement mechanism 3 and the hook 4 are rotatably installed; the lifting and reset mechanism 2 and the detachable hook anti-disengagement mechanism 3 are rotationally connected; the limit shaft 5 is fixedly installed inside the hook base cover 1. It combines the advantages of an efficient reset mechanism, a reliable anti-disengagement design, a convenient hook-unhooking operation, the safety guarantee of the limit shaft 5, a compact structure for easy installation, strong adaptability, and reduction of operation errors.

[0023] The lifting and reset mechanism 2 includes a lifting column 21, a lifting ring 22, a limit disk 23, a spring 24, and a connecting head 25. The lifting column 21 slides through the hook base cover 1. The upper and lower ends of the lifting column 21 are respectively fixedly installed with the lifting ring 22 and the limit disk 23. The limit disk 23 is elastically connected to the hook base cover 1 through the spring 24. The connecting head 25 fixedly installed below the limit disk 23 is rotatably connected to the detachable hook anti - detachment mechanism 3. The lifting and reset mechanism 2 utilizes the elastic force of the spring 24 to achieve the automatic reset of the lifting column 21, greatly improving the work efficiency.

[0024] The detachable hook anti - detachment mechanism 3 includes a mounting shaft 31, an anti - detachment buckle 32, a driving link 33, and a pulling link 34. The mounting shaft 31 is rotatably installed on the hook base cover 1. The anti - detachment buckle 32 is fixedly installed on the mounting shaft 31. One end of the driving link 33 is fixedly installed on the anti - detachment buckle 32. The two ends of the pulling link 34 are respectively rotatably connected to the driving link 33 and the connecting head 25. The detachable hook anti - detachment mechanism 2 ensures the stability of the hook during the lifting process through the anti - detachment buckle 32, reducing the accident risk. Embodiment 1:

[0025] Specifically, a through - hole is opened at the top of the upper part of the hook base cover 1. This through - hole allows the lifting column 21 to freely slide through, enabling the lifting column 21 to move flexibly during the lifting process without being overly restricted. In addition, an outward - protruding side ear is provided on one side of the lower part of the hook base cover 1. The main function of this outward - protruding side ear is to allow the mounting shaft 31 to be rotatably installed. The mounting shaft 31 can rotate flexibly, thereby driving the anti - detachment buckle 3 to perform corresponding actions.

[0026] Specifically, the lifting ring 22 and the limit disk 23 are respectively installed at the upper and lower ends of the lifting column 21. The lifting ring 22 is used to connect with the lifting equipment to realize the lifting operation of the equipment. The limit disk 23 is used to limit the stroke of the lifting column 21 during the sliding process to ensure the safety of the operation. It should be noted that the sizes of the lifting ring 22 and the limit disk 23 on the lifting column 21 are carefully designed. They cannot pass through the through - hole provided on the hook base cover 1.

[0027] It has two main purposes: First, the size limitation ensures that the sliding range of the lifting column 21 in the through - hole is strictly controlled, avoiding excessive movement or accidental detachment during the lifting process, thus improving the safety of the lifting operation. Second, the fact that the lifting ring 22 and the limit disk 23 cannot pass through the through - hole also ensures that during the lifting process, the lifting column 21 can be stably fixed on the hook base cover 1 without shaking or tilting, further improving the stability of the lifting operation.

[0028] Specifically, the anti - detachment buckle 32 is composed of an installation cylinder and a buckle body. The anti - detachment buckle 32 and the driving connecting rod 33 are not flush, and there is an included angle between them. Due to the included angle between the two, when the driving connecting rod 33 is subjected to an external force, it will not directly exert excessive pressure on the anti - detachment buckle 32, thus ensuring the stability and reliability of the anti - detachment buckle 32. The included - angle design enables the driving connecting rod 33 to drive the anti - detachment buckle 32 to open and close more flexibly during operation, thereby improving the operating performance of the entire unhooking and hooking device.

[0029] Specifically, the main function of the limit shaft 5 is to allow blocking the movement of the driving connecting rod 33 and the pulling connecting rod 34 under specific circumstances. This design is to prevent the mechanism from being damaged during excessive movement or abnormal conditions, and at the same time ensure the safety of operation. When the hook 4 is in the locked state, the limit shaft 5 can limit the movement range of the driving connecting rod 33 and the pulling connecting rod 34, thus preventing the hook 4 from accidentally falling off or being damaged.

[0030] In addition, the position selection of the limit shaft 5 has also been carefully considered. It is located below the lifting and reset mechanism 2, which means that during the lifting process, even if the lifting column 21 deviates or shakes for some reason, the limit shaft 5 can play a role in time to prevent the driving connecting rod 33 and the pulling connecting rod 34 from being damaged due to excessive movement. At the same time, the limit shaft 5 is located on one side of the connection between the driving connecting rod 33 and the pulling connecting rod 34, and this layout makes the mechanism more stable and reliable during the unhooking or hooking process. Embodiment Two:

[0031] I. Lifting Process

[0032] Connection with the lifting equipment: Connect with the lifting hook of the lifting equipment through the lifting ring 22.

[0033] Lifting operation: The lifting equipment is lifted upward, driving the lifting column 21 to slide upward in the through - hole of the hook base cover 1. At the same time, the connection head 25 moves upward together with the lifting column 21 and compresses the spring 24.

[0034] Anti - detachment buckle locking: As the lifting column 21 rises, through the action of the pulling connecting rod 34, the driving connecting rod 33 drives the anti - detachment buckle 32 to rotate to the locked position (the anti - detachment buckle 32 is in close contact with the inner side of the hook 4), ensuring that the hook 4 will not accidentally fall off during the lifting process.

[0035] II. Unhooking Process

[0036] Unlocking: When unhooking is required, place the hoisted equipment on the water surface (the equipment floats on the water surface) or at the bottom of the river (the equipment sinks to the bottom). The hook 4 no longer has a large downward pulling force, and the elastic force of the spring 24 starts to take effect, quickly pushing the hoisting column 21 back to the initial position. At this time, the connecting head 25 and the driving link 33 also move downward accordingly. By pulling the other end of the link 34, the driving link 33 moves in the reverse direction, thereby driving the anti-disengagement buckle 32 to unlock and release the locking of the hook 4.

[0037] Inspection and preparation: After confirming that the hook 4 has been completely released and the hoisting column 21 has been reset to the initial position, prepare for the next hoisting operation.

[0038] III. Safety guarantee

[0039] Function of the limit shaft 5: During the hoisting and unhooking processes, the limit shaft 5 plays a role in restricting the movement ranges of the driving link 33 and the pulling link 34, preventing damage or safety accidents caused by excessive movement of the mechanism.

[0040] Compact structure and easy installation: Since the entire device has a compact structure and the connections between components are simple and clear, it is easy to install and maintain, improving work efficiency and safety.

[0041] Using the technical solution of the present utility model, or a person skilled in the art designing a similar technical solution inspired by the technical solution of the present utility model and achieving the above technical effects shall fall within the protection scope of the present utility model.

Claims

1. An underwater hook device with a hook-unhooking function, characterized in that: The hook base cover (1) comprises a lifting and resetting mechanism (2), a hook-removable anti-slip mechanism (3), a hook (4) and a limit shaft (5); the lifting and resetting mechanism (2) is elastically and slidably mounted on the hook base cover (1), and the hook-removable anti-slip mechanism (3) and the hook (4) are rotatably mounted; the lifting and resetting mechanism (2) and the hook-removable anti-slip mechanism (3) are rotatably connected; the limit shaft (5) is fixedly mounted on the inner side of the hook base cover (1); The lifting and resetting mechanism (2) comprises a lifting column (21), a lifting ring (22), a limiting plate (23), a spring (24) and a connecting head (25); the lifting column (21) slides through the hook base cover (1); the lifting ring (22) and the limiting plate (23) are fixedly installed at the upper and lower ends of the lifting column (21), respectively; the limiting plate (23) is elastically connected to the hook base cover (1) through the spring (24); the connecting head (25) fixedly installed below the limiting plate (23) is rotatably connected to the unhookable anti-slip mechanism (3); The unhookable anti-drop mechanism (3) comprises a mounting shaft (31), an anti-drop buckle (32), a driving connecting rod (33) and a pulling connecting rod (34); the mounting shaft (31) is rotatably mounted on the hook base cover (1); the anti-drop buckle (32) is fixedly mounted on the mounting shaft (31); one end of the driving connecting rod (33) is fixedly mounted on the anti-drop buckle (32); and both ends of the pulling connecting rod (34) are rotatably connected to the driving connecting rod (33) and the connecting head (25), respectively.

2. An underwater hook device with unhooking function as claimed in claim 1, characterized in that: A through hole is provided on the top of the hook base cover (1) to allow the lifting column (21) to slide through, and an outer convex side ear is provided on the lower side of the hook base cover (1) to allow the installation shaft (31) to be rotatably installed.

3. An underwater hook device with unhooking function as claimed in claim 2, characterized in that: The lifting ring (22) and the limiting plate (23) installed at the upper and lower ends of the lifting column (21) cannot pass through the through hole provided in the hook base cover (1).

4. An underwater hook device with unhooking function as claimed in claim 1, characterized in that: The anti-drop buckle (32) is composed of a mounting tube and a buckle body. The anti-drop buckle (32) and the driving connecting rod (33) are not flush with each other, and an angle is formed between the two.

5. An underwater hook device with unhooking function as claimed in claim 1, characterized in that: The limit shaft (5) is located below the lifting and resetting mechanism (2) and on one side of the connection between the driving connecting rod (33) and the pulling connecting rod (34), and the limit shaft (5) allows the movement of the driving connecting rod (33) and the pulling connecting rod (34) to be blocked.

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