Mousing-hook pawl lifting hook capable of being automatically opened and using method thereof

Abstract

The hook comprises a hook body, an anti-disengaging pawl, a connecting rod, a pressing rod and a releasing mechanism, the anti-disengaging pawl is rotatably arranged on the neck portion of the hook body, one end of the anti-disengaging pawl can abut against the tail end of the hook body to seal the opening portion of the hook body when the anti-disengaging pawl rotates, and the two ends of the connecting rod are connected with the anti-disengaging pawl and the pressing rod through hinge structures respectively; one end of the pressing rod is connected to the opening of the lifting hook through the elastic reset element, the other end of the pressing rod is connected with the releasing mechanism, at least part of the pressing rod is located above a groove of the lifting hook in the initial state of the elastic reset element, and when the lifting hook is matched with the rigging, the rigging presses down the pressing rod to trigger the connecting rod to drive the anti-disengaging pawl to rotate to seal the opening of the lifting hook. When the rigging is lifted to be separated from the groove of the lifting hook, the pressing rod is reset under the action of the elastic reset element and the release mechanism to drive the connecting rod to rotate the anti-falling pawl to open the opening part of the lifting hook. According to the invention, automatic opening of the anti-unhooking device is realized, and the problem that the anti-unhooking device is inconvenient to open manually in some special occasions is solved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting and hoisting, and in particular to an anti-unhooking ratchet hook which can be opened automatically and a use method thereof. Background Art

[0002] The hook is the most common type of lifting device in lifting machinery. It is widely used in manufacturing, construction, port logistics and other fields, and undertakes the key task of lifting and moving objects. In the process of using the hook, it is very important to prevent the object from being unhooked. The common anti-unhooking method used by the hook is to use an anti-unhooking pawl. Under the action of a spring or gravity, the pawl and the hook form a closed loop. When lifting objects, the object rigging presses down the pawl, and the pawl resets after the rigging enters the hook to achieve self-locking.

[0003] The structure of the hook with a spring-type anti-detachment pawl in the prior art generally consists of three parts: a hook, an anti-detachment pawl, and a torsion spring. When lifting objects, the object rigging presses down the anti-detachment pawl, and the torsion spring is compressed at the same time. When the rigging is fully inserted and no longer presses the anti-detachment pawl, the anti-detachment pawl is reset under the action of the torsion spring, forming a closed loop with the hook to achieve self-locking. The disadvantage is that the rigging cannot be automatically unhooked without external force, and the pawl needs to be manually pressed to release the object rigging when unloading the object. In some scenarios, such as the hoisting process of a large hopper, the place where the operator can stand is far away from the hook, and it is inconvenient to operate when releasing the rigging. Although some hooks can solve the problem of unhooking during the hoisting process of the hoisting equipment, the final rigging release action still needs to be completed manually during use, which is still inconvenient to operate in some occasions. Summary of the invention

[0004] In order to solve the above problems in the prior art, the present invention provides an automatically openable anti-unhooking ratchet hook and a method of using the same, so as to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, according to a first aspect of the present invention, an automatically opened anti-unhooking pawl hook is proposed, comprising a hook, an anti-unhooking pawl, a connecting rod, a pressure rod and a release mechanism, wherein the anti-unhooking pawl is rotatably arranged on the neck of the hook, and when the anti-unhooking pawl rotates, one end of the anti-unhooking pawl can abut the end of the hook to close the mouth of the hook, the two ends of the connecting rod are respectively connected to the anti-unhooking pawl and the pressure rod through a hinge structure, one end of the pressure rod is connected to the mouth of the hook through an elastic reset element, and the other end of the pressure rod is connected to the release mechanism, and the pressure rod is at least partially located above the groove of the hook in the initial state of the elastic reset element, when the hook cooperates with the rigging, the rigging presses down the pressure rod, triggering the connecting rod to drive the anti-unhooking pawl to rotate and close the mouth of the hook, and when the rigging is lifted and disengaged from the groove of the hook, the pressure rod is reset under the action of the elastic reset element and the release mechanism, and drives the connecting rod to make the anti-unhooking pawl rotate to open the mouth of the hook. The automatically opening anti-unhooking pawl hook realizes the function of automatically closing the anti-unhooking pawl of the hook when the rigging is engaged and automatically opening when the rigging is disengaged through the cooperation of the anti-unhooking pawl, the connecting rod, the pressure rod and the release mechanism, thereby improving the convenience and safety of the lifting operation and avoiding the inconvenience and potential risks caused by manual operation of the anti-unhooking pawl.

[0006] In some specific embodiments, the hook includes a front and rear shell, which cooperate with each other and form an open slot in the middle of the matching area between the hook and the rigging, and the anti-drop pawl and the pressure rod are both arranged in the open slot. The front and rear shell structure and the open slot design of the hook provide a reasonable installation space for the anti-drop pawl and the pressure rod, making the layout of each component more compact, which is conducive to the miniaturization and integration of the entire device, and can also better protect the internal components from the influence of the external environment.

[0007] In some specific embodiments, the connecting rod is an arc-shaped connecting rod, and one end of the arc-shaped connecting rod is hinged to the middle of the pressure rod. With this arrangement, the anti-drop pawl can be driven to rotate more smoothly during the force transmission process, thereby optimizing the force transmission path and improving the working efficiency and reliability of the device.

[0008] In some specific embodiments, the hinged part between the arc-shaped connecting rod and the pressure rod is always located inside the front and rear housings when the pressure rod rotates. The design of the arc-shaped connecting rod can better adapt to the layout of the internal space of the hook.

[0009] In some specific embodiments, the release mechanism includes a gear pair, a first fixed shaft, a ratchet mechanism, a second fixed shaft, a third fixed shaft and an escapement mechanism, the gear pair includes a large gear and a small gear, the large gear is rotatably arranged on the first fixed shaft, the ratchet mechanism is arranged on the large gear and the first fixed shaft, the small gear is rotatably arranged on the second fixed shaft and meshes with the large gear, and the escapement mechanism is used to control the rotation speed of the gear pair, including an escapement wheel and an escapement fork, the escapement wheel is fixedly arranged on the second fixed shaft, and the escapement fork is fixedly arranged on the third fixed shaft. The coordination of the gear pair, the ratchet mechanism and the escapement mechanism in the release mechanism can accurately control the reset speed of the pressure rod, thereby realizing the slow opening of the anti-unhooking pawl, ensuring that the anti-unhooking pawl can remain in a closed state when the load has a large bump during the lifting process, thereby improving the stability and reliability of the device.

[0010] In some specific embodiments, the ratchet mechanism includes a ratchet wheel and a ratchet pawl, wherein the ratchet wheel is fixedly arranged on the first fixed shaft, and the ratchet pawl is fixed on the surface of the large gear. The arrangement of the ratchet wheel and the ratchet pawl of the ratchet mechanism further ensures the unidirectionality and stability of the gear pair during the rotation process, so that the device can operate in a predetermined direction and manner during the working process, and avoids the occurrence of abnormal situations such as reverse rotation.

[0011] In some specific embodiments, the release mechanism further includes an energy storage mechanism, which is disposed on the first fixed shaft and is used to store energy when the pressure rod is pressed down by the rigging, and release the energy to reset the pressure rod when the rigging leaves the pressure rod. The arrangement of the energy storage mechanism enables the pressure rod to store energy when it is pressed down by the rigging, and release the energy to reset the pressure rod when the rigging leaves, thereby providing a reliable energy source for the automatic reset of the device and ensuring that the device can work continuously and stably.

[0012] In some specific embodiments, the energy storage mechanism includes a spring, which is disposed on one side of the front and rear housings and is connected to the first fixed shaft. As an energy storage mechanism, the spring has the characteristics of simple structure and good energy storage effect, and can effectively store the energy in the process of pressing the pressure rod downward, and release it when needed, providing strong support for the automatic operation of the device.

[0013] In some specific embodiments, the elastic reset element includes a reset spring, and a reset spring mounting column is provided at the opening groove of the mouth of the hook and the front end of the pressure rod, and the two ends of the reset spring are respectively connected to the reset spring mounting column.

[0014] According to a second aspect of the present invention, a method for using an anti-unhooking pawl hook that can be opened automatically is provided, using the anti-unhooking pawl hook that can be opened automatically as described above, comprising the following steps:

[0015] S1: In the initial state when the hook is not in cooperation with the rigging, the anti-drop pawl is in the open state under the action of the elastic reset element;

[0016] S2: When the hook is matched with the rigging, the rigging presses down the pressure rod, triggering the connecting rod to drive the anti-drop pawl to rotate and close the mouth of the hook, the elastic reset element is stretched, and the energy storage mechanism inside the release mechanism stores energy;

[0017] S3: When the rigging is lifted and disengaged from the groove of the hook, the pressure rod is reset under the action of the elastic reset element and the energy storage mechanism, driving the connecting rod to rotate the anti-slip pawl to open the mouth of the hook, and the reset rotation speed of the pressure rod is controlled by the escapement mechanism in the release mechanism.

[0018] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0019] The anti-unhooking pawl hook that can be opened automatically in the present application can realize the automatic opening of the anti-unhooking device, thereby solving the problem of the inconvenience of manually opening the anti-unhooking device in some special occasions; the anti-unhooking pawl can be slowly opened after the lifting is completed, without the need for manual operation, and the anti-unhooking pawl can remain in a closed state when the load is subject to large bumps during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and together with the description are used to explain the principles of the present invention. Other embodiments and many expected advantages of the embodiments will be readily appreciated as they become better understood by reference to the following detailed description. Other features, objects and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 It is a structural schematic diagram of an anti-unhooking ratchet hook that can be opened automatically according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of an anti-unhooking ratchet hook that can be opened automatically according to a specific embodiment of the present invention;

[0023] Figure 3 is a structural schematic diagram of a release mechanism of a specific embodiment of the present invention;

[0024] Figure 4 The present invention is a flowchart of a method for using an anti-unhooking ratchet hook that can be opened automatically according to an embodiment of the present invention.

[0025] Figure numerals: 10 - hook, 20 - anti-drop pawl, 30 - connecting rod, 40 - pressure rod, 50 - elastic reset element, 60 - release mechanism, 61 - gear pair, 62 - first fixed shaft, 63 - ratchet mechanism, 64 - second fixed shaft, 65 - third fixed shaft, 66 - escapement mechanism, 67 - energy storage mechanism. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "installation", "connection", "fixation" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings.

[0029] Figure 1 The schematic diagram of the structure of an anti-unhooking pawl hook that can be automatically opened according to an embodiment of the present invention is shown, combined with Figure 2 FIG. 1 shows a schematic diagram of the internal structure of an anti-unhooking ratchet hook that can be automatically opened according to a specific embodiment of the present invention, such as Figure 1 and 2As shown, the hook with the anti-drop pawl automatically opening comprises a hook 10, an anti-drop pawl 20, a connecting rod 30, a pressure rod 40, an elastic reset element 50 and a release mechanism 60. The anti-drop pawl 20 is fixed to the neck of the hook by a hinge so that it can rotate around the hinge point to realize the opening and closing action of the mouth of the hook 10. The two ends of the connecting rod 30 are respectively connected to the anti-slip pawl 20 and the pressure rod 40 through a hinge structure. One end of the pressure rod 40 is connected to the mouth of the hook 10 through an elastic reset element 50, and the other end of the pressure rod 40 is connected to the release mechanism 60. The pressure rod 40 is at least partially located above the groove of the hook in the initial state of the elastic reset element 50. When the hook 10 cooperates with the rigging, the rigging presses down the pressure rod, triggering the connecting rod 30 to drive the anti-slip pawl 20 to rotate and close the mouth of the hook 10. When the rigging rises and disengages from the groove of the hook 10, the pressure rod 40 is reset under the action of the elastic reset element 50 and the release mechanism 60, and drives the connecting rod 30 to make the anti-slip pawl 20 rotate to open the mouth of the hook.

[0030] In a specific embodiment, the elastic reset element 50 includes a reset spring, and a reset spring mounting column is provided at the opening groove of the mouth of the hook 10 and the front end of the pressure rod 40, and the two ends of the reset spring are respectively connected to the reset spring mounting column.

[0031] In a specific embodiment, the hook 10 includes a front and rear shell, which cooperate with each other and form an open slot in the middle of the cooperation area between the hook 10 and the rigging, and the anti-drop pawl 20 and the pressure rod 40 are both arranged in the open slot. The front and rear shell structure and the open slot design of the hook provide a reasonable installation space for the anti-drop pawl 20 and the pressure rod 40, making the layout of each component more compact, which is conducive to the miniaturization and integration of the entire device, and can also better protect the internal components from the influence of the external environment.

[0032] In a specific embodiment, the connecting rod 30 is an arc-shaped connecting rod, and one end of the arc-shaped connecting rod is hinged to the middle of the pressure rod, and the hinge between the arc-shaped connecting rod and the pressure rod 40 is always located inside the front and rear housings when the pressure rod 40 rotates. The design of the arc-shaped connecting rod can better adapt to the layout of the internal space of the hook, and can more smoothly drive the anti-drop pawl to rotate during the force transmission process, optimize the force transmission path, and improve the working efficiency and reliability of the device.

[0033] In a specific embodiment, the release mechanism 60 is a key part to realize the automatic opening and closing function of the anti-dropping pawl, including a gear pair 61, a first fixed shaft 62, a ratchet mechanism 63, a second fixed shaft 64, a third fixed shaft 65, an escapement mechanism 66, and a clockwork spring 67. Figure 3 A schematic diagram of a release mechanism according to a specific embodiment of the present invention is shown, Figure 3As shown, the large and small gears of the gear pair 61 are respectively mounted on the first fixed shaft 62 and the second fixed shaft 64. The large gear can rotate freely, and the small gear is locked to rotate. This design enables specific speed control to be achieved during power transmission. The ratchet mechanism 63 includes a ratchet and a ratchet pawl. The ratchet is fixed on the first fixed shaft 62, and the ratchet pawl is fixed on the large gear to ensure that the ratchet mechanism rotates synchronously with the first fixed shaft 62. The escapement mechanism 66 is used to control the speed of the gear pair, and includes an escapement wheel and an escapement fork. The escapement wheel is fixed on the second fixed shaft 64, and the escapement fork is fixed on the third fixed shaft 65. The cooperation of the escapement wheel and the escapement fork realizes the precise control of the rotation speed of the first fixed shaft 62.

[0034] In a specific embodiment, the release mechanism 60 also includes an energy storage mechanism 67, which is arranged on the first fixed shaft and is used to store energy when the pressure rod 40 is pressed down by the rigging, and release the energy to reset the pressure rod when the rigging leaves the pressure rod 40. The setting of the energy storage mechanism 67 enables the pressure rod 40 to store energy when it is pressed down by the rigging, and release the energy to push the pressure rod to reset when the rigging leaves, providing a reliable energy source for the automatic reset of the device and ensuring that the device can work continuously and stably. In a specific embodiment, the energy storage mechanism 67 includes a clockwork spring, which is arranged on one side of the front and rear shells and is connected to the first fixed shaft 62. As an energy storage mechanism, the clockwork spring has the characteristics of simple structure and good energy storage effect, and can effectively store the energy in the process of pressing the pressure rod 40 downward, and release it when needed, providing strong support for the automatic operation of the device.

[0035] Figure 4 The flowchart of the method for using the anti-unhooking ratchet hook that can be opened automatically according to one embodiment of the present invention is shown. Figure 4 As shown, the method comprises the following steps:

[0036] S1: In the initial state when the hook is not in cooperation with the rigging, the anti-drop pawl is in the open state under the action of the elastic reset element;

[0037] S2: When the hook is matched with the rigging, the rigging presses down the pressure rod, triggering the connecting rod to drive the anti-drop pawl to rotate and close the mouth of the hook, the elastic reset element is stretched, and the energy storage mechanism inside the release mechanism stores energy;

[0038] S3: When the rigging is lifted and disengaged from the groove of the hook, the pressure rod is reset under the action of the elastic reset element and the energy storage mechanism, driving the connecting rod to rotate the anti-slip pawl to open the mouth of the hook, and the reset rotation speed of the pressure rod is controlled by the escapement mechanism in the release mechanism.

[0039] In a specific embodiment, the basic working process of an anti-unhooking ratchet hook that can be automatically opened in the present application in combination with the above-mentioned drawings is as follows:

[0040] Initial state:

[0041] Under the action of the tension spring, the pressure rod 40 is in the initial position. At this time, the anti-drop pawl 20 is in the open state, ready for the subsequent entry of the rigging. At the same time, the energy storage mechanism 67 has not started to store energy, and each component is in a relatively static initial setting.

[0042] Rigging down stage:

[0043] When the rigging presses down the pressure rod 40, the following linkage reaction is triggered: the pressure rod 40 and the first fixed shaft 62 rotate. This rotation is transmitted to the anti-detachment pawl 20 through the connecting rod 30, driving the anti-detachment pawl 20 to rotate, so that it forms a closed loop with the hook 10, thereby realizing the anti-detachment locking of the rigging. The elastic reset element 50 is stretched during the rotation of the pressure rod 40, storing a certain amount of elastic potential energy, providing an energy basis for subsequent actions. The rotation of the first fixed shaft 62 also drives the energy storage mechanism 67 to rotate, and the energy storage mechanism 67 starts to store energy to reserve energy for the subsequent reset process.

[0044] Rigging raising phase:

[0045] When the rigging is raised and no longer applies pressure to the pressure rod 40, the pressure rod 40 rises under the joint action of the elastic reset element 50 and the energy storage mechanism 67. At this time, the ratchet mechanism starts to work. The ratchet in the ratchet mechanism is fixed on the first fixed shaft 62, and the ratchet pawl is fixed on the large gear. As the first fixed shaft 62 rotates, the large gear is driven to rotate. Since the pinion of the gear pair 61 is locked and rotated, the rotation of the large gear will drive the pinion to rotate in a specific way. The rotation speed of the first fixed shaft 62 is limited by the escapement mechanism 66. The escapement wheel of the escapement mechanism 66 is fixed on the second fixed shaft 64, and the escapement fork is fixed on the third fixed shaft 65. Through the precise control of the escapement mechanism 66, the pressure rod 40 can rise slowly. In the process of the pressure rod 40 slowly rising, through the connection of the connecting rod 30, the anti-dropout pawl 20 will also open slowly accordingly, and finally return to the initial open state, completing a working cycle.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0048] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A hook with an anti-unhooking pawl that can be opened automatically, characterized in that: The invention comprises a hook, an anti-slip pawl, a connecting rod, a pressure rod and a release mechanism, wherein the anti-slip pawl is rotatably arranged on the neck of the hook, and one end of the anti-slip pawl can abut against the end of the hook to close the mouth of the hook when the anti-slip pawl rotates, the two ends of the connecting rod are respectively connected to the anti-slip pawl and the pressure rod by hinge structures, one end of the pressure rod is connected to the mouth of the hook by an elastic reset element, and the other end of the pressure rod is connected to the release mechanism, the pressure rod is at least partially located on the groove of the hook in the initial state of the elastic reset element, when the hook is matched with the rigging, the rigging presses down the pressure rod, triggering the connecting rod to drive the anti-slip pawl to rotate and close the mouth of the hook, when the rigging is lifted and disengaged from the groove of the hook, the pressure rod is reset under the action of the elastic reset element and the release mechanism, and drives the connecting rod to make the anti-slip pawl rotate to open the mouth of the hook.

2. The automatically opening anti-unhooking ratchet hook according to claim 1, characterized in that: The hook comprises a front and a rear shell, the front and the rear shells cooperate with each other and an open slot is formed in the middle of the cooperation area between the hook and the rigging, and the anti-drop pawl and the pressure rod are both arranged in the open slot.

3. The automatically opening anti-unhooking ratchet hook according to claim 2, characterized in that: The connecting rod is an arc-shaped connecting rod, and one end of the arc-shaped connecting rod is hinged to the middle part of the pressure rod.

4. The automatically opening anti-unhooking ratchet hook according to claim 3, characterized in that: The hinged joint between the arc-shaped connecting rod and the pressure rod is always located inside the front and rear housings when the pressure rod rotates.

5. The automatically opening anti-unhooking ratchet hook according to claim 2, characterized in that: The release mechanism includes a gear pair, a first fixed shaft, a ratchet mechanism, a second fixed shaft, a third fixed shaft and an escapement mechanism. The gear pair includes a large gear and a small gear. The large gear is rotatably arranged on the first fixed shaft. The ratchet mechanism is arranged on the large gear and the first fixed shaft. The small gear is rotatably arranged on the second fixed shaft and meshes with the large gear. The escapement mechanism is used to control the rotation speed of the gear pair, and includes an escapement wheel and an escapement fork. The escapement wheel is fixedly arranged on the second fixed shaft, and the escapement fork is fixedly arranged on the third fixed shaft.

6. The automatically opening anti-unhooking ratchet hook according to claim 5, characterized in that: The ratchet mechanism comprises a ratchet and a ratchet pawl, wherein the ratchet is fixedly arranged on the first fixed shaft, and the ratchet pawl is fixed on the surface of the large gear.

7. The automatically opening anti-unhooking ratchet hook according to claim 5, characterized in that: The release mechanism further comprises an energy storage mechanism, which is disposed on the first fixed shaft and is used for storing energy when the pressure rod is pressed down by the rigging, and releasing the pressure rod to reset the pressure rod when the rigging leaves the pressure rod.

8. The automatically opening anti-unhooking ratchet hook according to claim 7, characterized in that: The energy storage mechanism comprises a spring, which is arranged on one side of the front and rear housings and is cooperatively connected with the first fixed shaft.

9. The automatically opening anti-unhooking ratchet hook according to claim 2, characterized in that: The elastic reset element comprises a reset spring. The opening groove of the mouth of the hook and the front end of the pressure rod are provided with a reset spring mounting column. The two ends of the reset spring are respectively connected with the reset spring mounting column.

10. A method for using an automatically opening anti-unhooking ratchet hook, characterized in that: The method of using the automatically openable anti-unhooking ratchet hook according to any one of claims 1 to 9 comprises the following steps: S1: in the initial state when the hook is not matched with the rigging, the anti-drop pawl is in the open state under the action of the elastic reset element; S2: When the hook is matched with the rigging, the rigging presses down the pressure rod, triggering the connecting rod to drive the anti-drop pawl to rotate and close the mouth of the hook, the elastic reset element is stretched, and the energy storage mechanism inside the release mechanism stores energy; S3: When the rigging is lifted up and disengaged from the groove of the hook, the pressure rod is reset under the action of the elastic reset element and the energy storage mechanism, driving the connecting rod to rotate the anti-slip pawl to open the mouth of the hook, and the reset rotation speed of the pressure rod is controlled by the escapement mechanism in the release mechanism.

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