Lifting hook device with resistance-adjustable gravity self-unhooking structure

Abstract

The invention relates to the technical field of hoisting, and provides a lifting hook device with a resistance-adjustable gravity self-unhooking structure, which comprises a shell, the hook body is arranged on the shell in a swinging manner; the swing block is arranged on the shell in a swing mode and located above the hook body, and the swing block is provided with a clamped part. The sliding block is arranged on the hook body in a sliding mode, the sliding direction of the sliding block is perpendicular to the swinging direction of the hook body, the sliding block is provided with a clamping part, and the sliding block is configured in the mode that after the sliding block is driven by the hook body to swing, the clamping part abuts against the clamped part to drive the swinging block to swing or drive the sliding block to slide. By means of the technical scheme, the problem that in the prior art, triggering and unhooking sensitivity and stability of a lifting hook are difficult to well adapt to different lifting tasks is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, and in particular to a hook device with a resistance-adjustable gravity self-unhooking structure. Background Art

[0002] In various lifting and hoisting operations, the hook device is an indispensable and important component. Traditional hook devices often face many inconveniences during use. For example, in some scenarios where materials need to be lifted and unloaded frequently, the unhooking operation of the hook often relies on manual intervention, which is not only inefficient, but also increases the workload and safety risks of the operator. In addition, the existing hook devices have limitations in the self-unhooking function. Although some hooks can achieve self-unhooking, they cannot flexibly adjust the unhooking resistance according to the weight of the hoisted materials and specific working conditions. This may cause the hook to unhook prematurely when lifting lighter materials, causing the risk of material falling; while when lifting heavier materials, the hook is difficult to unhook smoothly, affecting the work progress. Furthermore, different lifting tasks have different requirements for the unhooking sensitivity and stability of the hook. However, the hook devices currently on the market are difficult to achieve convenient adjustment of the unhooking resistance while ensuring the unhooking stability to adapt to diverse work needs. In summary, the existing hook device has deficiencies in the convenience of self-unhooking operation, the flexibility of resistance adjustment and the ability to adapt to different working conditions. There is an urgent need for a hook device with a resistance-adjustable gravity self-unhooking structure to solve these problems. Summary of the invention

[0003] The present invention provides a hook device with a gravity self-unhooking structure with adjustable resistance, which solves the problem in the related art that the triggering and unhooking sensitivity and stability of the hook are difficult to adapt well to different lifting tasks.

[0004] The technical solution of the present invention is as follows: A hook device with a gravity self-unhooking structure with adjustable resistance, comprising: case; A hook body, the hook body being swingably disposed on the housing; A swing block, the swing block is swingably arranged on the housing and is located above the hook body, and the swing block has a clamped portion; A slider is slidably arranged on the hook body, and the sliding direction of the slider is perpendicular to the swinging direction of the hook body. The slider has a clamping portion, and the slider is configured so that after being driven by the hook body to swing, the clamping portion abuts against the clamped portion, thereby driving the swing block to swing or driving the slider to slide.

[0005] As a further technical solution, the hook body has a first guide groove perpendicular to the swing axis, the slider is slidably arranged in the first guide groove, and further comprises: A first elastic member, one end of which acts on the bottom of the first guide groove, and the other end of which acts on the sliding block, providing a force for the sliding block to move away from the bottom of the first guide groove.

[0006] As a further technical solution, the two sides of the clamped part have a first clamped surface and a second clamped surface respectively, the two sides of the clamping part have a first clamping surface and a second clamping surface respectively, the second clamped surface and the second clamping surface are inclined surfaces, and the slider is configured so that after being driven by the hook to swing, the first clamped surface abuts against the first clamping surface, driving the swing block to swing, or the second clamped surface slides against the second clamping surface, driving the slider to slide toward the bottom of the first guide groove, and after the second clamped surface slides against the second clamping surface, the first clamped surface and the second clamped surface are clamped.

[0007] As a further technical solution, it also includes: A second elastic member, wherein one end of the second elastic member acts on the housing, and the other end of the second elastic member acts on the swing block to provide a force for the swing block to swing and reset.

[0008] As a further technical solution, the housing has a second guide groove, the direction of the second guide groove is parallel to the swing axis of the swing block, the second guide groove has an opening, the opening is facing the direction of the swing block, one side of the swing block has a clamped groove, and the swing block is configured so that after swinging, the clamped groove and the second guide groove are connected or disconnected through the opening, and further comprising: A sliding clamp is slidably disposed in the second guide groove, and the sliding clamp is configured to be clamped into or unclamped from the clamped groove through the opening after sliding.

[0009] As a further technical solution, it also includes: an adjusting block, the adjusting block being connected to the inner thread of the second guide groove; A third elastic member is located in the second guide groove, and one end of the third elastic member acts on the adjustment block, and the other end of the third elastic member acts on the sliding clamp to provide a force for the sliding clamp to slide toward the opening.

[0010] As a further technical solution, both sides of the swing block have a clamping groove, both sides of the shell have a second guide groove, the sliding clamp head, the adjustment block and the third elastic member together constitute an adjustment card group, and the adjustment card group is symmetrically arranged in pairs and respectively located in the second guide grooves on both sides of the shell.

[0011] As a further technical solution, the hook body has a hook portion and an eccentric weight head portion, and the eccentric weight head portion is located on one side of the hook body swing axis.

[0012] As a further technical solution, it also includes: A sliding block, the sliding block is lifted and slid on the housing; A swing rod is swingably arranged on the sliding block, and the swing rod is configured to move closer to or away from the hook portion after swinging.

[0013] As a further technical solution, it also includes: A connecting rod, one end of which is hinged to the eccentric heavy head, and the other end of which is hinged to the swing rod. The swing block is configured to drive the swing rod to lift and slide through the connecting rod and swing to one side of the hook after swinging.

[0014] The working principle and beneficial effects of the present invention are: In the present invention, during the lifting operation, the personnel hang the hook body on the cargo to be lifted. When the hook body carries the heavy object, it will automatically swing. When it swings to a certain angle, the clamping part abuts against the clamped part, driving the swing block to swing. This action drives the self-starting process of the lifting. By changing the swinging resistance of the swing block through the adjustment mechanism, the starting resistance can be adjusted to meet the lifting requirements of different weights. When the lifting is completed and needs to be reset, the slider is manually pushed to slide to separate the clamping part from the clamped part, completing the manual reset process. The design of the manual reset slider is simple and convenient to operate, which is convenient for the staff to quickly perform the reset operation and improve work efficiency. The effective resistance adjustment function reduces the risk of accidents caused by misoperation or inappropriate startup, and enhances the safety of the entire lifting process. The structure is relatively simple, and the adjustment mechanism and manual reset operation are easy to understand and maintain, which reduces the maintenance cost and difficulty of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 2 A partial enlarged structural diagram of the middle part; Figure 4 This is a schematic diagram of the internal structure of the present invention from another perspective; Figure 5 for Figure 4A schematic diagram of the partially enlarged structure of the middle B part; Figure 6 It is a schematic diagram of the load state structure of the present invention; Figure 7 This is a schematic diagram of the structure of the unloading state of the present invention.

[0017] In the figure: shell 1, second guide groove 101, opening portion 102, hook body 2, first guide groove 201, hook portion 202, eccentric heavy head portion 203, swing block 3, clamped portion 301, first clamped surface 302, second clamped surface 303, first clamping surface 304, second clamping surface 305, clamped groove 306, slider 4, clamping portion 401, first elastic member 5, second elastic member 6, sliding clamp head 7, adjusting block 9, third elastic member 10, adjusting card group 1000, sliding block 11, swing rod 12, connecting rod 13. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] Reference Figure 1 to Figure 7An embodiment of the present invention provides a hook device with a gravity self-detaching structure with adjustable resistance, including a shell 1; a hook body 2 is swingably set on the shell 1; a swing block 3 is swingably set on the shell 1, located above the hook body 2, and the swing block 3 has a clamped portion 301; a slider 4 is slidably set on the hook body 2, and the sliding direction of the slider 4 is perpendicular to the swinging direction of the hook body 2, the slider 4 has a clamping portion 401, and the slider 4 is configured such that after being driven by the hook body 2 to swing, the clamping portion 401 abuts against the clamped portion 301, driving the swing block 3 to swing or driving the slider 4 to slide.

[0023] In this embodiment, during the lifting operation, the personnel hang the hook body 2 on the goods to be lifted. When the hook body 2 carries the heavy object, it will automatically swing. When it swings to a certain angle, the clamping part 401 abuts against the clamped part 301, driving the swing block 3 to swing. This action drives the self-starting process of the lifting. By changing the swinging resistance of the swing block 3 through the adjustment mechanism, the starting resistance can be adjusted to meet the lifting requirements of different weights. When the lifting is completed and reset is required, the slider 4 is manually pushed to slide, so that the clamping part 401 is separated from the clamped part 301, and the manual reset process is completed. The design of the manual reset slider 4 is simple and convenient to operate, which is convenient for the staff to quickly perform the reset operation and improve work efficiency. The effective resistance adjustment function reduces the accidental risks caused by misoperation or improper startup, and enhances the safety of the entire lifting process. The structure is relatively simple, and the adjustment mechanism and manual reset operation are easy to understand and maintain, which reduces the maintenance cost and difficulty of the equipment.

[0024] Furthermore, the hook body 1 has a first guide groove 201 whose direction is perpendicular to the swing axis, and the slider 4 is slidably arranged in the first guide groove 201, and also includes a first elastic member 5, one end of the first elastic member 5 acts on the bottom of the first guide groove 201, and the other end acts on the slider 4, providing a force to move the slider 4 away from the bottom of the first guide groove 201.

[0025] In this embodiment, during the lifting operation, after the clamping portion 401 interacts with the clamped portion 301 to complete the lifting action, the operator manually pushes the slider 4 to slide so that it is separated from the clamped portion 301. At this time, the first elastic member 5 is in a compressed state. When the operator straightens and resets the hook body 2, the slider 4 is released, and the elastic force of the first elastic member 5 pushes the slider 4 back to the initial position, which is convenient for the next lifting operation. The first elastic member 5 can automatically reset the slider 4, reduce the operator's operating steps, and improve work efficiency. Ensure that the hook device can quickly prepare for the next lifting operation and shorten the work cycle.

[0026] Furthermore, the two sides of the clamped portion 301 respectively have a first clamped surface 302 and a second clamped surface 303, and the two sides of the clamping portion 401 respectively have a first clamping surface 304 and a second clamping surface 305, the second clamped surface 303 and the second clamping surface 305 are inclined surfaces, and the slider 4 is configured so that after being driven by the hook body 2 to swing, the first clamped surface 302 abuts against the first clamping surface 304, driving the swing block 3 to swing, or the second clamped surface 303 slides and abuts against the second clamping surface 305, driving the slider 4 to slide toward the bottom of the first guide groove 201, and after the second clamped surface 303 slides and abuts against the second clamping surface 305, the first clamped surface 302 and the second clamped surface 303 are clamped.

[0027] In this embodiment, when the hook body 2 drives the slider 4 to swing, if the first clamped surface 302 abuts against the first clamping surface 304, it will drive the swing block 3 to swing, thereby driving the self-starting process of the lifting. When the second clamped surface 303 slides and abuts against the second clamping surface 305, a force will be generated to make the slider 4 slide toward the bottom of the first guide groove 201. During the lifting process, when the hook body 2 drives the slider 4 to swing, so that the first clamping surface 304 and the first clamped surface 302 abut each other, the swing block 3 will be automatically driven to swing, and the lifting operation will be automatically started. When the lifting is completed and reset is required, the slider 4 is manually pushed so that the second clamping surface 305 and the second clamped surface 303 slide and abut each other. At the same time, under the action of the first elastic member 5, the slider 4 can slide more easily toward the bottom of the first guide groove 201, thereby completing the reset operation. The cooperation between the first clamping surface 304 and the first clamped surface 302 ensures the accuracy and timeliness of the automatic drive of the swing block 3 to swing, thereby improving the lifting efficiency. The inclined design of the second clamping surface 305 and the second clamped surface 303, combined with the first elastic member 5, makes the manual reset operation easier and faster, reduces the reset time, and requires less force for manual reset, reduces the labor intensity of the operator, and improves the reliability of the reset operation.

[0028] Furthermore, a second elastic member 6 is included. One end of the second elastic member 6 acts on the housing 1 and the other end acts on the swing block 3 to provide a force for the swing block 3 to swing and reset.

[0029] In this embodiment, during the lifting process, when the swing block 3 is driven to swing and needs to be reset after the lifting operation is completed, the elastic force of the second elastic member 6 acts on the swing block 3 to provide it with a force for swinging and resetting, so that the swing block 3 returns to its initial position. The second elastic member 6 can automatically cause the swing block 3 to reset without additional manual operation, thereby improving work efficiency. The hook device can quickly prepare for the next lifting operation, shortening the working interval time. It ensures that the swing block 3 can accurately return to the initial position every time, improving the stability and reliability of the device operation. It reduces the collision and wear that may occur due to the failure to reset the swing block 3 in time, thereby extending its service life.

[0030] Furthermore, the shell 1 has a second guide groove 101, the direction of the second guide groove 101 is parallel to the swing axis of the swing block 3, the second guide groove 101 has an opening portion 102, the opening portion 102 faces the direction of the swing block 3, one side of the swing block 3 has a clamping groove 306, the swing block 3 is configured so that after swinging, the clamping groove 306 is connected or disconnected with the second guide groove 101 through the opening portion 102, and also includes a sliding clamp 7, the sliding clamp 7 is slidably arranged in the second guide groove 101, and the sliding clamp 7 is configured to be clamped into or canceled from the clamping groove 306 through the opening portion 102 after sliding.

[0031] In this embodiment, from the initial state to the loaded state, the hook body 2 swings after being loaded, and drives the swing block 3 to swing through the connecting parts. At this time, the slider 4 remains stationary, and the sliding clamp 7 slides out of the clamped groove 306, driving the swing block 3 to swing to complete the lifting action. In the process of manually restoring the initial state from the unloading state after loading, the hook body 2 is manually operated, and the slider 4 is driven to slide through the transmission part, driving the sliding clamp 7 to return to the clamped groove 306 and then pop out, so that the device is restored to the initial state. The swinging of the swing block 3 and the sliding of the slider 4 are respectively carried out in different stages, and the actions are clearly separated, avoiding mutual interference, and improving the accuracy and reliability of the device action. The actions at different stages are clearly targeted. When loaded, the swing block 3 is driven to achieve lifting, and the slider 4 is driven to reset after unloading, making the operation more efficient and orderly. The swinging of the hook body after loading can automatically trigger the sliding clamp 7 to slide out of the clamped groove 306, without the need for additional control, which improves the convenience of operation. During the lifting process, the sliding out and reset mechanism of the sliding clamp 7 effectively guarantees the safety and stability of the lifting operation.

[0032] Furthermore, it also includes an adjustment block 9, which is connected to the internal thread of the second guide groove 101; the third elastic member 10 is located in the second guide groove 101, and one end of the third elastic member 10 acts on the adjustment block 9, and the other end acts on the sliding clamp 7, providing a force for the sliding clamp 7 to slide toward the opening 102.

[0033] In this embodiment, under normal circumstances, the third elastic member 10 is in a certain compression state, and applies a force toward the opening 102 to the sliding chuck 7. When the hook body swings under load, it will act on the sliding chuck 7. By rotating the position of the adjustment block 9 in the second guide groove 101, the degree of compression of the third elastic member 10 can be changed, thereby adjusting the pre-pressure on the sliding chuck 7, that is, adjusting the trigger resistance of the sliding chuck 7. The adjustment block 9 can accurately adjust the trigger resistance of the sliding chuck 7 to meet the needs of different weights and lifting conditions, thereby improving the adaptability of the hook device. Resistance adjustment can be achieved through a simple thread rotation operation, which is convenient for the operator to quickly adjust according to actual conditions. Reasonable setting of the trigger resistance of the sliding chuck 7 helps to maintain the stability of the hook device during lifting and avoid unnecessary sliding or misoperation.

[0034] Furthermore, both sides of the swing block 3 have a clamping groove 306, both sides of the shell 1 have a second guide groove 101, the sliding clamp 7, the adjustment block 9 and the third elastic member 10 together constitute an adjustment card group 1000, and the adjustment card group 1000 is symmetrically arranged in pairs and respectively located in the second guide groove 101 on both sides of the shell 1.

[0035] In this embodiment, during the lifting process, when the hook body swings under load, the clamped grooves 306 on both sides of the swing block 3 interact with the corresponding sliding clamps 7. The adjustment card groups 1000 symmetrically arranged on both sides work simultaneously to ensure that the swing block 3 moves smoothly and reliably. By adjusting the adjustment blocks 9 on both sides respectively, the trigger resistance of the sliding clamp 7 can be more accurately controlled to adapt to different lifting requirements. There are clamped grooves 306 on both sides of the swing block 3 and the adjustment card groups 1000 are symmetrically arranged on both sides, so that the force on the swing block 3 is more balanced, the movement is more stable, and the stability of the lifting process is improved. The paired symmetrical adjustment card groups 1000 allow the trigger resistance on both sides to be adjusted independently, which can more accurately meet the needs of various complex lifting conditions. The double-sided design increases the reliability of the device. Even if the adjustment card group 1000 on one side fails or the performance deteriorates, the other side can still provide a certain guarantee to reduce the possibility of accidents.

[0036] Furthermore, the hook body 2 has a hook portion 202 and an eccentric weight head portion 203 , and the eccentric weight head portion 203 is located on one side of the swing axis of the hook body 2 .

[0037] In this embodiment, when lifting the cargo, the hook 202 bears the pulling force of the cargo. When the cargo falls to the ground, the pulling force on the hook position is cancelled. At this time, the eccentric structure of the eccentric heavy head 203 and its own gravity work together to generate a force that causes the hook body 2 to swing around the swing axis. Under the action of this force, the hook body 2 swings automatically to achieve automatic unhooking. The cancellation of the pulling force after the cargo falls to the ground can rely on the eccentric heavy head 203 to automatically achieve unhooking without additional operation, thereby improving work efficiency. It can respond in time at the moment the cargo falls to the ground, achieve reliable unhooking action, and avoid the inconvenience caused by delayed unhooking. Unhooking is achieved by utilizing the natural characteristics of the eccentric heavy head 203, without the need for a complex mechanical structure, reducing the cost and maintenance difficulty of the device. The automatic and timely unhooking action reduces the operator's stay time near the cargo and improves the safety of the lifting operation.

[0038] Furthermore, it also includes a sliding block 11, which is lifted and slid on the housing 1; a swing rod 12 is swingably arranged on the sliding block 11, and the swing rod 12 is configured to move closer to or away from the hook portion 202 after swinging.

[0039] In this embodiment, during the lifting operation, the sliding block 11 can be lifted and slid on the housing 1 according to specific needs. The swing rod 12 can swing flexibly on the sliding block 11. First, when the swing rod 12 swings toward the hook 202, the position of the hook 202 can be adjusted. If the position of the hook 202 hooking the cargo affects the automatic unhooking, it can be adjusted by this adjustment to ensure that the automatic unhooking can proceed smoothly. Second, the swing rod 12 can also swing to one side of the hook 202. When an unexpected situation occurs, such as the lifting equipment losing control or a sudden collision, the swing rod 12 can block between the hook 202 and the person or cargo to prevent the hook 202 from directly colliding with the person or cargo. By adjusting the position of the hook, the problem that may affect the automatic unhooking is solved, making the unhooking process smoother and improving work efficiency. In unexpected situations, the direct collision between the hook and the person or cargo is effectively avoided, which greatly enhances the safety of the operation. Ensure the smooth progress of the automatic unhooking and reduce the lifting failures and risks caused by poor unhooking. It can cope with a variety of different lifting conditions and unexpected scenarios, enhancing the applicability of the hook device.

[0040] Furthermore, it also includes a connecting rod 13, one end of which is hinged to the eccentric heavy head 203, and the other end is hinged to the swing rod 12. The swing block 3 is configured to drive the swing rod 12 to rise and fall and slide and swing to one side of the hook 202 through the connecting rod 13 after swinging.

[0041] In this embodiment, when the hook device performs a lifting operation, the eccentric weight head 203 swings as the cargo is lifted and landed. The swing of the eccentric weight head 203 drives the connecting rod 13 to move. The movement of the connecting rod 13 then drives the swing rod 12 to lift and slide, and swings it to one side of the hook 202. Through the linkage of the eccentric weight head 203, the connecting rod 13 and the swing rod 12, an automatic and timely response is achieved without the need for an additional power source or complex control. In the critical stage of cargo lifting, the swing rod 12 can be quickly swung to one side of the hook 202, providing effective protection and improving the safety of the operation. The movement of the components of the hook device itself is used to drive the action of the protective component, which reduces additional driving mechanisms and makes the overall structure more concise.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A hook device with a gravity self-unhooking structure with adjustable resistance, characterized in that: include: Housing (1); A hook body (2), the hook body (2) being swingably disposed on the housing (1); A swing block (3), the swing block (3) being swingably disposed on the housing (1) and being located above the hook body (2), the swing block (3) having a clamped portion (301); A slider (4), the slider (4) being slidably disposed on the hook body (2), and the sliding direction of the slider (4) being perpendicular to the swinging direction of the hook body (2), the slider (4) having a clamping portion (401), the slider (4) being configured such that, after being driven by the hook body (2) to swing, the clamping portion (401) abuts against the clamped portion (301), thereby driving the swing block (3) to swing or driving the slider (4) to slide.

2. The hook device with a gravity self-unhooking structure with adjustable resistance according to claim 1, characterized in that: The hook body (1) has a first guide groove (201) with a direction perpendicular to the swing axis, the slider (4) is slidably arranged in the first guide groove (201), and further comprises: A first elastic member (5), wherein one end of the first elastic member (5) acts on the bottom of the first guide groove (201), and the other end of the first elastic member (5) acts on the sliding block (4), providing a force for moving the sliding block (4) away from the bottom of the first guide groove (201).

3. A hook device with a gravity self-unhooking structure with adjustable resistance according to claim 2, characterized in that: The two sides of the clamped portion (301) respectively have a first clamped surface (302) and a second clamped surface (303); the two sides of the clamping portion (401) respectively have a first clamping surface (304) and a second clamping surface (305); the second clamped surface (303) and the second clamping surface (305) are inclined surfaces; the slider (4) is configured such that, after being driven by the hook body (2) to swing, the first clamped surface (302) abuts against the first clamping surface (304), driving the swing block (3) to swing; or the second clamped surface (303) abuts against the second clamping surface (305), driving the slider (4) to slide toward the bottom of the first guide groove (201); after the second clamped surface (303) abuts against the second clamping surface (305), the first clamped surface (302) and the second clamped surface (303) are clamped.

4. The hook device with a gravity self-unhooking structure with adjustable resistance according to claim 1, characterized in that: Also includes: A second elastic member (6), wherein one end of the second elastic member (6) acts on the housing (1) and the other end acts on the swing block (3) to provide a force for the swing block (3) to swing and reset.

5. The hook device with a gravity self-unhooking structure with adjustable resistance according to claim 1, characterized in that: The housing (1) has a second guide groove (101), the direction of the second guide groove (101) is parallel to the swing axis of the swing block (3), the second guide groove (101) has an opening (102), the opening (102) faces the direction of the swing block (3), one side of the swing block (3) has a clamping groove (306), and the swing block (3) is configured such that after swinging, the clamping groove (306) is connected to or disconnected from the second guide groove (101) through the opening (102), and further comprising: A sliding clamp (7), the sliding clamp (7) being slidably disposed in the second guide groove (101), the sliding clamp (7) being configured to be clamped into or unclamped from the clamped groove (306) through the opening (102) after sliding.

6. A hook device with a gravity self-unhooking structure with adjustable resistance according to claim 5, characterized in that: Also includes: an adjusting block (9), the adjusting block (9) being connected to an internal thread of the second guide groove (101); A third elastic member (10), the third elastic member (10) being located in the second guide groove (101), and one end of the third elastic member (10) acting on the adjustment block (9) and the other end acting on the sliding clamp (7) to provide a force for the sliding clamp (7) to slide in the direction of the opening (102).

7. A hook device with a gravity self-unhooking structure with adjustable resistance according to claim 6, characterized in that: Both sides of the swing block (3) are provided with a clamping groove (306), both sides of the housing (1) are provided with a second guide groove (101), the sliding clamp head (7), the adjustment block (9) and the third elastic member (10) together form an adjustment card group (1000), and the adjustment card group (1000) is symmetrically arranged in pairs and is respectively located in the second guide grooves (101) on both sides of the housing (1).

8. The hook device with a gravity self-unhooking structure with adjustable resistance according to claim 1, characterized in that: The hook body (2) comprises a hook portion (202) and an eccentric heavy head portion (203), wherein the eccentric heavy head portion (203) is located on one side of the swing axis of the hook body (2).

9. The hook device with a gravity self-unhooking structure with adjustable resistance according to claim 8, characterized in that: Also includes: A sliding block (11), the sliding block (11) being lifted and slid on the housing (1); A swing rod (12), the swing rod (12) being swingably disposed on the sliding block (11), the swing rod (12) being configured to move closer to or farther from the hook portion (202) after swinging.

10. A hook device with a gravity self-unhooking structure with adjustable resistance according to claim 9, characterized in that: Also includes: A connecting rod (13), one end of the connecting rod (13) being hinged to the eccentric heavy head portion (203), and the other end of the connecting rod (13) being hinged to the swing rod (12), and the swing block (3) being configured to drive the swing rod (12) to rise and fall and slide through the connecting rod (13) and swing to one side of the hook portion (202) after swinging.

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