Gravity self-release hook with self-locking function

Abstract

The utility model discloses a gravity self -releasing lifting hook with self -locking function belongs to gravity self -releasing lifting hook technical field, this gravity self -releasing lifting hook with self -locking function, including first left half hook, the one side of first left half hook is pasted with right half hook, the one side of right half hook is pasted with second left half hook, the inside of first left half hook, right half hook and second left half hook is equipped with the lifting mechanism of realizing whole machine light weight, between first left half hook and second left half hook is equipped with the self -locking mechanism of reducing the deformation of tension spring, the utility model discloses be equipped with self -locking mechanism, through optimization reconstruction structure, reduce the deformation of tension spring, make tension spring can long -time normal operation, improve the service life of tension spring, prevent tension spring and take place deformation or breakage, the utility model discloses be equipped with lifting mechanism, through optimization reconstruction structure, reduce the number of connecting piece, the whole machine weight is lower than similar product, can satisfy the strict requirement of lightweight design of unmanned plane hoisting.

Description

Technical Field

[0001] This utility model relates to the field of gravity self-detaching hook technology, and in particular to a gravity self-detaching hook with a self-locking function. Background Technology

[0002] The hook is the core lifting tool of lifting machinery. According to its shape, it is divided into single hook and double hook. Structurally, it includes components such as hook beam, thrust bearing, and pulley. In modern logistics and emergency rescue, drones are widely used for cargo lifting due to their high efficiency and flexibility. Traditional drone lifting systems use manual rope untying, which is not only inefficient but also poses safety hazards. To solve this problem, gravity self-detaching hooks have emerged. These hooks can automatically detach the rope under the tension of a tension spring after the drone lifts the cargo to the destination and lands. This eliminates the need for manual rope untying, reduces human intervention, ensures the safety of operators, and improves operational safety and automation.

[0003] Existing gravity-driven self-detaching hooks generally suffer from complex structures and heavy weight, making it difficult to meet the stringent requirements of drones for lightweight design. In addition, after loading cargo, in order to achieve effective self-detachment, the tension spring needs to be stretched to more than twice its original length, which puts the tension spring under constant overload, resulting in a significant reduction in its lifespan, making it prone to deformation or breakage, and increasing maintenance costs and usage risks.

[0004] Therefore, there is an urgent need to provide a gravity-driven self-release hook with a self-locking function to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a gravity self-release hook with self-locking function.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a gravity self-release hook with self-locking function is provided, including a first left half hook, a right half hook attached to one side of the first left half hook, and a second left half hook attached to one side of the right half hook. The first left half hook, the right half hook, and the second left half hook are equipped with lifting mechanisms to achieve overall weight reduction. A self-locking mechanism to reduce the deformation of the tension spring is provided between the first left half hook and the second left half hook.

[0007] The present invention is further configured such that: the lifting mechanism includes a lifting ring disposed at one end of the first left half hook and the second left half hook; the first left half hook and the second left half hook are both provided with a vertical groove for the lifting ring; the right half hook is provided with a slanted groove for the lifting ring; a lifting ring pin is rotatably mounted inside the lifting ring; and the outside of the lifting ring pin is slidably connected to the inside of the vertical groove and the slanted groove of the lifting ring, respectively.

[0008] Through the above technical solution, the UAV is connected to the first left half hook, the right half hook and the second left half hook through the lifting ring and the lifting ring pin. The lifting ring pin can move adaptively inside the lifting ring vertical groove of the first left half hook and the second left half hook, and the lifting ring pin can move adaptively inside the lifting ring inclined groove of the right half hook.

[0009] The present invention is further configured such that: a limiting hole is provided on one side of the vertical groove of the first left half hook and the second left half hook lifting ring, and a limiting pin is rotatably installed inside the two limiting holes.

[0010] Through the above technical solution, the limiting pin is installed through the limiting hole via the first left half hook and the second left half hook, thereby assembling the first left half hook and the second left half hook.

[0011] The present invention is further configured such that: a limiting groove is provided on one side of the inclined groove of the right half hook lifting ring, the inside of the limiting groove is slidably connected to the outside of the limiting pin, and an installation hook is integrally fixed in the middle of one side of the right half hook.

[0012] Through the above technical solution, the limiting pin can move adaptively inside the limiting groove of the right half hook.

[0013] The present invention is further configured such that: the self-locking mechanism includes a fixing hole located in the middle of one side of the first left half hook and the second left half hook, and a fixing pin is rotatably installed inside the two fixing holes.

[0014] With the above technical solution, the fixing pin is installed through the fixing holes of the first left half hook and the second left half hook, thereby assembling the first left half hook and the second left half hook.

[0015] The present invention is further configured such that: a movable pin is rotatably mounted inside the mounting hook, and a tension spring is rotatably connected between the movable pin and the fixed pin.

[0016] Through the above technical solution, the movable pin drives the connecting spring to move self-adaptively through the fixed pin.

[0017] The present invention is further configured such that: a self-locking block is fixed on one side of the first left half hook, and a self-locking groove adapted to the self-locking block is provided on one side of the right half hook.

[0018] Through the above technical solution, the self-locking positioning block and the self-locking groove cooperate to achieve self-locking.

[0019] The beneficial effects of this utility model are as follows: 1. This utility model, by incorporating a self-locking mechanism and optimizing the reconfiguration structure, reduces the deformation of the tension spring, enabling it to operate normally for extended periods, thus extending its service life and preventing deformation or breakage. Furthermore, this design provides a robust and reliable self-locking mechanism, ensuring high safety during hoisting and reducing maintenance costs and usage risks. 2. This utility model, by incorporating a lifting mechanism and optimizing the reconstructed structure, reduces the number of connecting parts, resulting in a lower overall weight compared to similar products. This meets the stringent requirements of drone lifting for lightweight design, and eliminates the need for manual untying of ropes after the goods are landed, reducing labor and risk. It can also be used to deliver supplies to locations that are difficult for personnel to reach, making it highly practical. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a structural diagram of the lifting cargo configuration of this utility model; Figure 3 This is a structural diagram of the self-locking state of this utility model; Figure 4 This is a structural diagram of the cargo landing state according to this utility model; Figure 5 This is an exploded structural diagram of the present invention.

[0021] In the diagram: 1. First left half hook; 2. Right half hook; 3. Second left half hook; 4. Lifting mechanism; 401. Lifting ring; 402. Lifting ring vertical groove; 403. Lifting ring inclined groove; 404. Lifting ring pin; 405. Limiting hole; 406. Limiting pin; 407. Limiting groove; 408. Mounting hook; 5. Self-locking mechanism; 501. Fixing hole; 502. Fixing pin; 503. Movable pin; 504. Connecting tension spring; 505. Self-locking block. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] Please see Figures 1-5A gravity-driven self-release hook with a self-locking function includes a first left hook 1, a right hook 2 attached to one side of the first left hook 1, and a second left hook 3 attached to one side of the right hook 2. The first left hook 1, the right hook 2, and the second left hook 3 are internally equipped with a lifting mechanism 4 to achieve overall weight reduction. The lifting mechanism 4 includes a lifting ring 401 located at one end of the first left hook 1 and the second left hook 3. Both the first left hook 1 and the second left hook 3 have a vertical groove 402 inside, and the right hook 2 has a diagonal groove 403 inside. A lifting ring pin 404 is rotatably mounted inside the lifting ring 401. The outside of the lifting ring pin 404 is slidably connected to the inside of the vertical groove 402 and the diagonal groove 403, respectively. Limiting holes 405 are provided on one side of the vertical groove 402 of the first left hook 1 and the second left hook 3. The two limiting holes 405 are internally rotated... The device is equipped with a limiting pin 406. A limiting groove 407 is provided on one side of the inclined groove 403 of the right half hook 2. The inside of the limiting groove 407 is slidably connected to the outside of the limiting pin 406. An installation hook 408 is integrally fixed in the middle of one side of the right half hook 2. The UAV is connected to the first left half hook 1, the right half hook 2 and the second left half hook 3 through the lifting ring 401 and the lifting ring pin 404. The lifting ring pin 404 can move self-adaptively inside the vertical groove 402 of the first left half hook 1 and the second left half hook 3. The lifting ring pin 404 can move self-adaptively inside the inclined groove 403 of the right half hook 2. The limiting pin 406 is installed through the limiting hole 405 through the first left half hook 1 and the second left half hook 3, thereby assembling the first left half hook 1 and the second left half hook 3. The limiting pin 406 can move self-adaptively inside the limiting groove 407 of the right half hook 2.

[0024] like Figure 5 As shown, a self-locking mechanism 5 for reducing the deformation of the tension spring is provided between the first left half hook 1 and the second left half hook 3. The self-locking mechanism 5 includes a fixing hole 501 located in the middle of one side of the first left half hook 1 and the second left half hook 3. Fixing pins 502 are rotatably installed inside the two fixing holes 501. A movable pin 503 is rotatably installed inside the mounting hook 408. A connecting tension spring 504 is rotatably installed between the movable pin 503 and the fixing pin 502. A self-locking block 505 is fixed on one side of the first left half hook 1. A self-locking groove that matches the self-locking block 505 is provided on one side of the right half hook 2. The fixing pin 502 is installed through the fixing hole 501 of the first left half hook 1 and the second left half hook 3, thereby assembling the first left half hook 1 and the second left half hook 3. The movable pin 503 drives the connecting tension spring 504 to move self-adaptively through the fixing pin 502. The self-locking block 505 cooperates with the self-locking groove to perform self-locking.

[0025] When this utility model is in use, since the hook is not pulled by the cargo, it needs to be manually closed. At this time, the self-locking groove of the right half hook 2 locks the self-locking block 505 of the first left half hook 1 and the second left half hook 3. Under the combined action of the tension of the connecting spring 504 and the limiting pin 406, the bottom of the hook closes, locking the lifting rope of the cargo below. After the drone lifts the cargo below through the hook, the cargo pulls downward, forcing the lifting ring 401 and the ring pin 404 to move upward along the vertical groove 402 of the ring on the first left half hook 1 and the second left half hook 3. At this time, the tension connection... The tension spring 504 moves the right half hook 2 to the right along the inclined groove 403 of the lifting ring, separating it from the self-locking block 505 of the first left half hook 1 and the second left half hook 3, and it no longer self-locks. Due to the obstruction of the limit pin 406, the hooks on both sides can still hold the cargo below. After the drone transports the cargo to the designated location, the downward pull of the cargo is lost, and the lifting ring 401 and the lifting ring pin 404 are no longer under force. At this time, the connecting tension spring 504 pulls back the right half hook 2, causing it to rotate counterclockwise around the lifting ring pin 404. The lower opening of the hook also automatically springs open, releasing the cargo lifting rope and completing the automatic unhooking.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gravity-driven self-release hook with a self-locking function, comprising a first left half hook (1), characterized in that: The first left half hook (1) is attached to one side of the right half hook (2), and the right half hook (2) is attached to one side of the second left half hook (3). The first left half hook (1), the right half hook (2), and the second left half hook (3) are provided with a lifting mechanism (4) to achieve overall weight reduction. The lifting mechanism (4) includes a lifting ring (401) located at one end of the first left half hook (1) and the second left half hook (3). The first left half hook (1) and the second left half hook (3) are provided with a lifting ring vertical groove (402). The right half hook (2) is provided with a lifting ring inclined groove (403). The lifting ring (401) is rotatably mounted with a lifting ring pin (404). The outside of the lifting ring pin (404) is slidably connected to the inside of the lifting ring vertical groove (402) and the lifting ring inclined groove (403), respectively. A self-locking mechanism (5) for reducing the deformation of the tension spring is provided between the first left half hook (1) and the second left half hook (3).

2. A gravity-driven self-release hook with self-locking function according to claim 1, characterized in that: The first left half hook (1) and the second left half hook (3) are provided with a limiting hole (405) on one side of the lifting ring vertical groove (402), and a limiting pin (406) is rotatably installed inside the two limiting holes (405).

3. A gravity-driven self-release hook with self-locking function according to claim 2, characterized in that: The right half hook (2) has a limiting groove (407) on one side of the lifting ring inclined groove (403). The inside of the limiting groove (407) is slidably connected to the outside of the limiting pin (406). An installation hook (408) is integrally fixed in the middle of one side of the right half hook (2).

4. A gravity-driven self-release hook with self-locking function according to claim 3, characterized in that: The self-locking mechanism (5) includes a fixing hole (501) located in the middle of one side of the first left half hook (1) and the second left half hook (3), and a fixing pin (502) is rotatably installed inside the two fixing holes (501).

5. A gravity-driven self-release hook with self-locking function according to claim 4, characterized in that: The mounting hook (408) is internally rotatably mounted with a movable pin (503), and a tension spring (504) is rotatably connected between the movable pin (503) and the fixed pin (502).

6. A gravity-driven self-release hook with self-locking function according to claim 1, characterized in that: The first left half hook (1) has a self-locking block (505) fixed on one side, and the right half hook (2) has a self-locking groove that is compatible with the self-locking block (505) on one side.

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