Automatic unhooking and hooking device

Abstract

The utility model provides an automatic unhooking device which comprises a female head shell, a bottom limiting sleeve, a top limiting sleeve, a clamping structure, an installation door, a hanging frame and a male head structure. The bottom limiting sleeve is fixedly installed at the bottom of the inner side of the female head shell, and the top limiting sleeve is fixedly installed at the top of the inner side of the female head shell; the clamping structure is fixedly mounted in the middle of the female head shell; the mounting door is rotationally mounted on the outer side of the female head shell through a hinge and is fixed through magnet adsorption; the hanging frame is rotationally mounted at the top of the outer side of the female head shell, and the male head structure is fixedly mounted above the gravity center point of a hoisted object and is slidably mounted in the female head shell; due to the arrangement of the clamping structure and the male head structure, stability is high, the crane can be in butt joint with a hoisted object quickly, unhooking of the hoisted object can be realized quickly, and accidental unhooking is avoided during hoisting.

Description

Technical Field

[0001] The utility model relates to the technical field of modern industry and logistics, and in particular to an automatic unhooking device. Background Art

[0002] Automatic unhooking devices play a vital role in modern industry and logistics. These devices are primarily used in automated lifting systems to improve efficiency and safety. Traditional unhooking devices often rely on manual operation or complex mechanical systems, which often lead to inefficiencies, operational complexity, and safety risks in practice. Therefore, the development of a more efficient, simple, and safe automatic unhooking device has become an urgent need for industry development.

[0003] Patent publication number CN117602010A relates to a decoupling device assembly and an automatic decoupling device for a cabled underwater robot using the same, comprising a fixing mechanism and a moving mechanism; the fixing mechanism is used to carry and install the moving mechanism, and the moving mechanism comprises three sets of components, namely a stopper, a push rod and a hook. By adjusting the position of the tension spring in the automatic decoupling device on board or on shore, the matching state of the moving mechanism is changed, thereby further controlling the opening and closing of the deadweight hook; when the ROV is being placed in the water, after the ROV touches the water and floats, the deadweight hook in the decoupling device can be automatically opened and disengaged from the ROV hook; when the ROV is being recovered and salvaged, the deadweight hook in the decoupling device can be automatically closed and engaged after contacting the ROV hook. After the hook is installed, there is no need for divers to go into the water to cooperate with the lifting equipment to carry out ROV hook removal and hooking work, which comprehensively solves the problem of automatic unhooking and hooking when the equipment is lowered into the sea and recovered. It introduces an automatic opening and closing function, but its complex structure may also lead to additional maintenance costs and operational problems, especially in an environment that requires frequent adjustments; the push rod and spring have high requirements for coordination, which may lead to difficulties in adjustment and increased maintenance costs in actual applications. The complex structure may require more technical support and maintenance work in actual use; although it has automation functions, its complex structure and high maintenance costs may bring challenges in actual operation. For those occasions that value operational stability and ease of maintenance, this case is undoubtedly a better choice.

[0004] It can be seen that the existing automatic unhooking devices still have certain defects: insufficient fixing strength. Under high load or vibration environment, traditional fixing devices may not provide sufficient stability, causing parts to loosen or fall off; complex installation and adjustment. The installation and adjustment process of some fixing devices is relatively complicated, which increases the difficulty and time cost of operation; limited applicability. The design of traditional fixing devices is often relatively simple and cannot flexibly adapt to different equipment and environmental conditions.

[0005] Therefore, it is very necessary to invent a kind of automatic unhooking device. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides an automatic unhooking device to solve the problems that the existing structure still has poor stability, cannot quickly dock the crane with the hoisted object, cannot quickly unhook the hoisted object, and is prone to accidental unhooking during hoisting.

[0007] An automatic hook-releasing device includes a female housing, a top limiting sleeve is installed on the top of the female housing, and a bottom limiting sleeve is installed on the bottom of the female housing. The female housing is rotatably connected to the installation door through a hinge. The side walls on both sides of the female housing are penetrated by a No. 1 groove and a No. 2 groove. The No. 1 groove and the No. 2 groove are both equipped with a snap-fit ​​structure. The snap-fit ​​groove of the snap-fit ​​plate of each snap-fit ​​structure is snap-fitted to the snap-fit ​​section of the male structure.

[0008] Each rotating frame of the locking structure is fixedly set at the bottom of the No. 1 slot and the No. 2 slot respectively, and a sliding rod is fixedly connected inside each rotating frame. The outer wall of each sliding rod is rotatably connected to the inner wall of the rotating base, and each rotating base is fixedly connected to one side of the positioning plate and the locking plate.

[0009] Each of the clamping plates is symmetrically arranged on the No. 1 slot and the No. 2 slot, and one end of each of the two clamping plates is provided with a clamping slot, and the other side of each positioning plate is in contact with the outer wall of the female head shell.

[0010] Each of the engaging grooves is engaged with the engaging section of the male head structure, the top of the engaging section is connected to the sliding head, the top of the sliding head is connected to the rope fixing base, and the rope fixing base is fixedly connected to the guide rope.

[0011] The bottom of the locking joint is connected to the male support column, and the concave grab arm at the bottom of the male support column is connected to the convex hanging of the lifting platform through a screw rotation. The lifting platform is provided with multiple small holes for fixing the lifting object.

[0012] The top limiting sleeve is provided with fixing grooves at both ends, and the fixing grooves and the fixing arms of the suspension bracket are fixedly connected to the side walls of the female head shell through spiral rods. A hanging hole is also provided in the middle of the top of the suspension bracket, and the hanging hole is used to hang the crane hook of the crane.

[0013] The top limiting sleeve is also provided with a decoupling hole, in which a decoupling rope is installed. The decoupling rope passes through the decoupling hole of the top limiting sleeve and is fixedly connected to the sliding guide column. A return spring is installed on the outer side around the sliding guide column. The bottom of the sliding guide column and the return spring is fixedly connected to the mounting body. Multiple unlocking buckles are symmetrically provided on both sides of the mounting body, and the bottom wall of each locking plate is in contact with at least one unlocking buckle.

[0014] The top fitting sleeve of the door installation and the top limiting sleeve are fitted and adsorbed and connected; the bottom fitting sleeve of the door installation and the bottom limiting sleeve are fitted and adsorbed and connected.

[0015] The positioning plate is a magnet.

[0016] The top and bottom fittings for mounting the door are both magnets.

[0017] Preferably, the second groove and the first groove are symmetrically arranged on the side wall of the female connector housing.

[0018] Preferably, the top limiting sleeve and the bottom limiting sleeve are iron metal blocks.

[0019] Preferably, the guide rope is a nylon rope with a float provided at the top.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The setting of the locking structure of the utility model has the following functions: ① Fixed connection: the locking structure cooperates with the locking joint on the male structure through the locking plate and locking groove inside it to ensure that the male structure and the female shell can be firmly locked in the connected state. This connection prevents accidental unhooking due to vibration or external force during lifting; ② Automatic unhooking: when unhooking is required, the operator pulls the unhooking rope to make the sliding guide column drive the installation body to move upward, and then the positioning plate and the locking plate rotate to open the locking groove. At this time, the locking joint on the male structure can be disengaged from the locking groove to achieve unhooking; ③ Self-resetting function: after the unhooking operation is completed, the return spring in the locking structure will push the installation body and the locking joint The plate automatically returns to its original position to ensure that the locking structure is in its initial state during the next operation; ④ Safety guarantee: The locking structure ensures that the male structure and the female shell will not separate by themselves before the unhooking operation is performed, thereby ensuring safety during the lifting process. At the same time, the automatic unhooking function allows the hoisted object to be released quickly and safely when it needs to be unhooked; ⑤ Adsorption insurance: The positioning plate will be adsorbed on the outside of the female shell before unhooking. When unhooking, a certain amount of pulling force needs to be applied to open it to prevent it from opening prematurely due to external force underwater, causing the hoisted object to sink rapidly. This design adds additional safety insurance, so that the unhooking operation must be an intentional and controlled operation to avoid the occurrence of accidents.

[0022] 2. The setting of the male head structure of the utility model has the following functions: 1. Fixing and supporting the hoisted object: the male head support column is the core supporting component of the entire male head structure. It is firmly fixed above the center of gravity of the hoisted object through the hoisting platform, bearing the weight of the hoisted object and ensuring the stability of the hoisted object during lifting; 2. Realizing engagement and release. The engagement joint: located in the upper middle position of the male head support column, it cooperates with the engagement structure inside the female head shell. After the engagement joint enters the engagement groove, the male head structure and the female head shell are firmly connected together to ensure that the hoisted object will not detach during the lifting process; 3. Preventing accidental sliding: the design of the sliding head ensures that the sliding head cannot slide when the engagement groove is in a horizontal state. ④ Guidance function: Guide rope: fixed on the fixed rope base of the male structure, the guide rope passes through the center hole of the male structure and extends to the crane operation area. This guide rope is used to guide the female shell to accurately dock with the male structure during high-altitude or underwater operations, ensuring that the automatic unhooking device can successfully complete the hooking and unhooking operations; ⑤ Tensile strength and stability: The male structure must have high-strength tensile strength to meet the load-bearing requirements of the lifting operation. In terms of design, it needs to be able to withstand a tensile force of at least 5 tons and pass a tensile test of more than 2 times the tensile force to ensure that it can remain stable and safe under high load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the connection structure of the automatic unhooking device of the utility model.

[0024] Figure 2 The utility model is a schematic diagram of the main internal structure of the automatic unhooking device after disassembly.

[0025] Figure 3 It is a structural schematic diagram of the connection between the clamping structure and the female connector housing of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the connection between the clamping plate and the unlocking buckle of the utility model.

[0027] Figure 5 It is a rear view of the automatic unhooking device of the utility model.

[0028] Figure 6 It is a structural schematic diagram of the male plug structure of the present utility model.

[0029] Figure markings: female shell 1, slot No. 1 1, slot No. 2 12, bottom limiting sleeve 2, top limiting sleeve 3, fixed slot 31, locking structure 4, rotating frame 41, rotating base 42, positioning plate 43, locking plate 44, locking slot 45, mounting body 46, unlocking buckle 461, sliding guide column 47, return spring 48, unhooking rope 49, mounting door 5, top fitting sleeve 51, bottom fitting sleeve 52, hinge 53, hanging frame 6, hanging hole 61, fixed arm 62, male structure 7, male support column 71, concave grab arm 711, locking joint 72, sliding head 73, rope fixing base 74, guide rope 75, lifting platform 76, convex hanging 761. DETAILED DESCRIPTION

[0030] It should be understood that the terms "top, bottom, both sides, inside, inner wall, outer wall" 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, 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 therefore should not be understood as a limitation on the present invention.

[0031] In addition, the description of this invention is only a preferred embodiment of this invention and is not intended to limit this invention. Although this invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in each embodiment or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this invention shall be included in the scope of protection of this invention. The material of the female connector housing 1, the bottom limiting sleeve 2, and the top limiting sleeve 3 is preferably a metal that can be attracted by magnets, such as iron.

[0032] Example 1

[0033] like Figures 1 to 6 An automatic hook-releasing device includes a female housing 1, a top limiting sleeve 3 mounted on the top of the female housing 1, a bottom limiting sleeve 2 mounted on the bottom of the female housing 1, and a mounting door 5 rotatably connected to the female housing 1 via a hinge 53. A first slot 11 and a second slot 12 are formed through the sidewalls of the female housing 1. Each of the first and second slots 11 and 12 contains a snap-fit ​​structure 4. The snap-fit ​​plate 44 of each snap-fit ​​structure 4 has a snap-fit ​​groove 45 that snaps into engagement with a snap joint 72 of a male structure 7.

[0034] The rotating frame 41 of each locking structure 4 is respectively fixedly set at the bottom of the No. 1 slot 11 and the No. 2 slot 12, and each rotating frame 41 is fixedly connected to a sliding rod. The outer wall of each sliding rod is rotatably connected to the inner wall of the rotating base 42, and each rotating base 42 is respectively fixedly connected to a positioning plate 43 and one side of the locking plate 44.

[0035] Each engaging plate 44 is symmetrically arranged on the first slot 11 and the second slot 12 . One end of each engaging plate 44 is provided with an engaging slot 45 . The other side of each positioning plate 43 is in contact with the outer wall of the female connector housing 1 by adsorption.

[0036] Each engaging groove 45 engages with the engaging section 72 of the male structure 7 . The top of the engaging section 72 is connected to the sliding head 73 . The top of the sliding head 73 is connected to the rope fixing base 74 . The rope fixing base 74 is fixedly connected to the guide rope 75 .

[0037] The bottom of the locking joint 72 is connected to the male support column 71. The concave grab arm 711 at the bottom of the male support column 71 is connected to the convex pendant 761 of the lifting platform 76 through a screw. A screw hole is provided at the top of the convex pendant 761 for installing the screw. The lifting platform 76 is provided with multiple small holes for fixing the lifting object.

[0038] A fixing groove 31 is provided at both ends of the top limiting sleeve 3. The fixing groove 31 and the fixing arm 62 of the suspension bracket 6 are fixedly connected to the side wall of the female head shell 1 through a screw rod. The fixing groove 31 and the fixing arm 62 can also be welded to the side wall of the female head shell 1. A hanging hole 61 is also provided in the middle of the top of the suspension bracket 6. The hanging hole 61 is used to hang the crane hook of the crane.

[0039] The top limiting sleeve 3 is also provided with a decoupling hole, in which a decoupling rope 49 is installed. The decoupling rope 49 passes through the decoupling hole of the top limiting sleeve 3 and is fixedly connected to the sliding guide column 47. A return spring 48 is installed on the outer side of the sliding guide column 47. The return spring 48 can also be selected to be sleeved on the outer wall of the sliding guide column 47. The bottom of the sliding guide column 47 and the return spring 48 is fixedly connected to the mounting body 46. A plurality of unlocking buckles 461 are symmetrically provided on both sides of the mounting body 46, and the bottom wall of each locking plate 44 is in contact with at least one unlocking buckle 461.

[0040] The top fitting sleeve 51 of the mounting door 5 is attached to the top limiting sleeve 3 by affixed suction connection; the bottom fitting sleeve 52 of the mounting door 5 is attached to the bottom limiting sleeve 2 by affixed suction connection. The positioning plate 43 is a magnet. Both the top fitting sleeve 51 and the bottom fitting sleeve 52 of the mounting door 5 are magnets. Preferably, the second slot 12 and the first slot 11 are symmetrically arranged on the side wall of the female housing 1. Preferably, the top limiting sleeve 3 and the bottom limiting sleeve 2 are iron metal blocks.

[0041] Preferably, the unlocking buckle 461 is rotatably connected to the mounting body 46, and the unlocking buckle 461 is in rolling contact with the bottom wall of the locking plate 44. The unlocking buckles 461 on both sides of the mounting body 46 are set at a spacing greater than the maximum distance when the locking plate 44 is lifted, so as to prevent the locking plate 44 from falling off after being lifted.

[0042] Example 2

[0043] like Figures 1 to 6The present invention provides an automatic hook-releasing device, comprising a female housing 1, a bottom limiting sleeve 2, a top limiting sleeve 3, a snap-fit ​​structure 4, a mounting door 5, a hanging bracket 6, and a male structure 7, wherein: the bottom limiting sleeve 2 is fixedly mounted on the bottom of the inner side of the female housing 1, and the top limiting sleeve 3 is fixedly mounted on the top of the inner side of the female housing 1; the snap-fit ​​structure 4 is fixedly mounted in the middle of the side wall of the female housing 1; the mounting door 5 is rotatably mounted on the outer side of the female housing 1 via a hinge 53 and is fixed by magnet adsorption; the hanging bracket 6 is rotatably mounted on the top of the outer side of the female housing 1, and the guide rope 75 of the male structure 7 is fixedly mounted above the center of gravity of the hoisted object, and the sliding head 73 of the male structure 7 is slidably mounted inside the female housing 1.

[0044] The locking structure 4 includes a rotating frame 41, a rotating base 42, a positioning plate 43, a locking plate 44, a locking groove 45, a mounting body 46, a sliding guide post 47, a return spring 48 and a unhooking rope 49, and the rotating frame 41 is fixedly installed in the middle position of the outer side of the female head shell 1, and the rotating base 42 is rotatably installed on the inner side of the rotating frame 41; the positioning plate 43 is fixedly installed above the rotating base 42, and the locking plate 44 is fixedly installed on the inner side of the rotating base 42, and the locking plate 44 extends to the interior of the female head shell 1; the locking groove 45 is arranged at the top of the locking plate 44, and the mounting body 46 is rotatably installed on one side of the two groups of locking plates 44, and the sliding guide post 47 is fixedly installed on the top of the mounting body 46; the sliding guide post 47 is slidably installed below the top limiting sleeve 3, and is connected and fixed with the unhooking rope 49; the return spring 48 is fixedly installed between the mounting body 46 and the top limiting sleeve 3.

[0045] The male head structure 7 includes a male head support column 71, a locking joint 72, a sliding head 73, a rope fixing base 74, a guide rope 75 and a lifting platform 76, and the locking joint 72 is arranged in the upper middle position of the male head support column 71, and the sliding head 73 is fixedly installed on the top of the male head support column 71; the rope fixing base 74 is fixedly installed on the top of the sliding head 73, and the guide rope 75 is fixedly installed on the top of the rope fixing base 74, and the lifting platform 76 is fixedly installed above the center of gravity of the lifting object; the lifting platform 76 is rotatably connected to the bottom end of the male head support column 71.

[0046] The snap-fit ​​structure 4 is provided in two groups and is mirror-imaged to each other on the female housing 1; the rotating frame 41 is fixedly connected to the female housing 1 as a whole, and a long through-groove is provided at the female housing 1 in the middle of each rotating frame 41, and the long through-grooves are slots 11 and 12, and the rotating base 42 can rotate on the internal slide rod of the rotating frame 41; the rotating base 42, the positioning plate 43 and the snap-fit ​​plate 44 are connected as a whole, forming an "L" shape, and can rotate on the internal slide rod of the rotating frame 41 at the same time; the positioning plate 43 is provided with an arc-shaped groove consistent with the female housing 1 The mounting body 46 is a metal block which assists the return spring 48 in returning to its original position and can be moved upward by the upward force of the sliding guide column 47 and the unhooking rope 49, and when the mounting body 46 moves upward, it can drive the positioning plate 43 and the engaging plate 44 to rotate outward. The mounting body 46 can be pushed downward by the return spring 48 to return the positioning plate 43 and the engaging plate 44 to their original position.

[0047] The male head support column 71 inside the male head structure 7 is made of a steel metal column, and the male head support column 71 is installed on the hoisting object through the hoisting platform 76. The locking section 72 on the top of the male head support column 71 is locked between the two locking grooves 45; the sliding head 73 is a frustum-shaped metal structure, and the bottom diameter of the sliding head 73 is larger than the maximum distance between the two locking grooves 45 after the locking section 72 is engaged. At the same time, the bottom diameter of the sliding head 73 is smaller than the maximum distance between the two locking grooves 45 when flipped upward, and can slide into the locking groove 45 from bottom to top; the sliding head 73 cannot move downward when the locking groove 45 is in a horizontal state; the guide rope 75 is a nylon rope with a float at the top, and the guide rope 75 can make the locking groove 45 inside the female head shell 1 slide on the surface of the sliding head 73.

[0048] The automatic hook-release device is a device used in high-altitude or underwater hoisting operations. It is designed to automatically hook and unhook objects through a clever combination of mechanical structures. The device consists of two parts: a female housing 1 and a male structure 7. The male structure 7 is fixed to the hoisted object, while the female housing 1 is connected to the crane hook via a hole 61 in a hanger 6. Guided by a guide rope, the hook automatically docks and unclips during operation.

[0049] 1. Preparation

[0050] Installation of the male structure 7: Before the lifting operation begins, the male structure 7 is installed above the center of gravity of the object to be lifted, and the guide rope 75 is installed from the top of the male support column 71 and extends to the crane operation area for subsequent docking operations.

[0051] Preparation of the female shell 1: The female shell 1 is connected to the crane hook through the suspension bracket 6, and the internal snap-fit ​​structure 4 is in a ready state. The positioning plate 43 is magnetically adsorbed on the outside of the female shell 1, and the snap-fit ​​plate 44 extends to the inside of the female shell, ready to dock with the snap-fit ​​joint 72 in the male structure 7.

[0052] 2. Hooking operation

[0053] When the locking cam 73 is in the unlocking state, the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 72 of the locking cam 73 is in the unlocking state, and the locking cam 46 of the locking cam 46 is in the unlocking state,

[0054] Automatic locking: After the sliding head 73 enters the locking groove 45, the locking plate 44 in the locking structure 4 is locked with the locking joint 72 to complete the docking. During this process, the locking plate 44 is reset to a horizontal clamping state as the return spring 48 is reset, ensuring that the connection between the male head structure 7 and the female head shell 1 is firm and will not be accidentally detached during the lifting process.

[0055] 3. Hoisting operation

[0056] After completing the hooking operation, the crane starts to lift the hoisted object. At this time, the male structure 7 bears the weight of the hoisted object through its internal male support column 71 and hoisting platform 76, ensuring that the hoisted object can rise stably. The connection between the female shell 1 and the male structure 7 is firmly fixed by the snap joint 72 and the snap groove 45 to ensure safety during the hoisting process.

[0057] 4. Unhook operation

[0058] Triggering the release: When the hoisting operation is completed and the hoisted object needs to be released, the operator applies a pulling force to activate the unhooking rope 49. The unhooking rope 49 pulls the mounting body 46 upward through the sliding guide column 47, thereby the unlocking buckle 461 drives the positioning plate 43 and the locking plate 44 to rotate outward.

[0059] Unlocking: Under the action of tension, the locking plate 44 rotates upward, the locking groove 45 opens outward, the sliding head 73 is released from the locking groove 45, and the male head structure 7 is separated from the locking plate 44 in the female head shell 1. At this time, the connection between the hoisted object and the crane is released, and the hoisted object is safely placed in the predetermined position.

[0060] Preventing misoperation: During the unhooking process, the positioning plate 43 is originally adsorbed on the outside of the female head shell 1, ensuring that the device will not be accidentally unlocked due to external interference when operating underwater or at high altitude. The adsorption state will only be released when sufficient pulling force is applied, ensuring the safety and controllability of the operation.

[0061] 5. Summary

[0062] The automatic unhooking device, through the precise design of the female housing 1 and male structure 7, enables automatic hooking and unhooking during lifting operations. Its operating principle fully considers the special requirements of high-altitude and underwater environments, ensuring safety, stability, and ease of operation during the lifting process. The reliable connection between the male structure 7 and the female housing 1, as well as the design to prevent misoperation during unhooking, make this device excellent for various complex lifting operations.

[0063] Utilizing the technical solution of the present utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the present utility model.

Claims

1. An automatic unhooking device, comprising a female housing (1), characterized in that: The top of the female housing (1) is provided with a top limiting sleeve (3), and the bottom of the female housing (1) is provided with a bottom limiting sleeve (2). The female housing (1) is rotatably connected to the installation door (5) via a hinge (53). The side walls on both sides of the female housing (1) are provided with a first groove (11) and a second groove (12). The first groove (11) and the second groove (12) are both provided with a snap-fit ​​structure (4). The snap-fit ​​groove (45) of the snap-fit ​​plate (44) of each snap-fit ​​structure (4) is snap-fitted to the snap-fit ​​section (72) of the male structure (7).

2. The automatic unhooking device according to claim 1, characterized in that: The rotating frame (41) of each of the engaging structures (4) is fixedly arranged at the bottom of the No. 1 slot (11) and the No. 2 slot (12), respectively. A sliding rod is fixedly connected inside each rotating frame (41), and the outer wall of each sliding rod is rotatably connected to the inner wall of the rotating base (42). Each rotating base (42) is fixedly connected to one side of the positioning plate (43) and the engaging plate (44).

3. The automatic unhooking device according to claim 1, characterized in that: Each of the engaging plates (44) is symmetrically arranged on the first slot (11) and the second slot (12), and one end of each of the two engaging plates (44) is provided with an engaging slot (45). The other side of each positioning plate (43) is in contact with the outer wall of the female housing (1) by adsorption.

4. The automatic unhooking device according to claim 1, characterized in that: Each of the engaging grooves (45) engages with an engaging section (72) of the male head structure (7); the top of the engaging section (72) is connected to a sliding head (73); the top of the sliding head (73) is connected to a rope fixing base (74); and the rope fixing base (74) is fixedly connected to the guide rope (75).

5. The automatic unhooking device according to claim 1, characterized in that: The bottom of the locking section (72) is connected to the male support column (71), and the concave grab arm (711) at the bottom of the male support column (71) is connected to the convex hanging (761) of the hoisting platform (76) through a screw rotation. The hoisting platform (76) is provided with a plurality of small holes for fixing the hoisted object.

6. The automatic unhooking device according to claim 1, characterized in that: The top limiting sleeve (3) is provided with fixing grooves (31) at both ends, and the fixing grooves (31) and the fixing arms (62) of the suspension frame (6) are fixedly connected to the side walls of the female housing (1) via screw rods. A hanging hole (61) is also provided in the middle of the top of the suspension frame (6), and the hanging hole (61) is used to hang a crane hook of a crane.

7. The automatic unhooking device according to claim 1, characterized in that: The top limiting sleeve (3) is also provided with a decoupling hole, in which a decoupling rope (49) is installed. The decoupling rope (49) passes through the decoupling hole of the top limiting sleeve (3) and is fixedly connected to the sliding guide column (47). A return spring (48) is installed on the outer side of the sliding guide column (47). The bottom of the sliding guide column (47) and the return spring (48) is fixedly connected to the mounting body (46). A plurality of unlocking buckles (461) are symmetrically provided on both sides of the mounting body (46), and the bottom wall of each engaging plate (44) is in contact with at least one unlocking buckle (461).

8. The automatic unhooking device according to claim 1, characterized in that: The top fitting sleeve (51) of the installation door (5) and the top limiting sleeve (3) are connected by abutting adsorption; the bottom fitting sleeve (52) of the installation door (5) and the bottom limiting sleeve (2) are connected by abutting adsorption.

9. The automatic unhooking device according to any one of claims 2 to 3, characterized in that: The positioning plate (43) is a magnet.

10. The automatic unhooking device according to claim 1, characterized in that: The top fitting sleeve (51) and the bottom fitting sleeve (52) of the mounting door (5) are both magnets.

Images