Underwater implement mechanical unhooking device

Abstract

The mechanical unhooking device comprises two lifting ropes, a lifting ring and two unhooking devices, the length of the lifting ropes is adjusted according to the gravity center position, one ends of the lifting ropes are connected to the lifting ring at the same time, and the two unhooking devices are symmetrically arranged and arranged at one ends of the two lifting ropes in a closed mode; the unhooking device comprises a U-shaped clamp, a spring bolt barrel, a spring bolt column, an unhooking rope, a bolt unhooking frame, a first spring and a second spring. One end of the U-shaped clamp is connected with a spring bolt cylinder, a spring bolt column is arranged in the spring bolt cylinder in a sliding connection mode and can be inserted into the lock hole in a penetrating mode, and a second spring is arranged between the first check ring and the outer side of the U-shaped clamp. The other end of the spring bolt cylinder is connected with a bolt releasing frame, the bolt releasing frame is connected with a lock releasing rope, one end of the lock releasing rope is connected with a releasing pin, the other end of the lock releasing rope is connected with a hand buckle for pulling the lock releasing rope, and the releasing pin is connected to the bolt releasing frame in a sliding mode and can be embedded into the lock groove; a second check ring is arranged on the lower middle portion of the tripping pin, a first spring is arranged between the second check ring and the tongue disengaging frame, and underwater tripping is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of underwater unhooking equipment, and in particular to a mechanical unhooking device for underwater objects. Background Art

[0002] In underwater lifting operations, underwater objects such as vehicles, materials, and pipes need to be lifted from the water surface to the underwater by cranes and unhooked at the appropriate position. Unlike simple ground unhooking, the underwater operation environment is relatively complex. On the one hand, there is buoyancy and ocean currents underwater, and the objects will float to a certain extent underwater; on the other hand, there is pressure and corrosion underwater, and conventional surface unhookers are not suitable for underwater operations. Initially, people usually dive into the unhooking position and unhook manually, but this unhooking method is not only dangerous, but also difficult and intensive, and is not suitable for long-term work.

[0003] In the prior art, designers apply the surface unhooking device to the underwater unhooking operation, or imitate the surface unhooking device to design a new underwater unhooking device. For example, the authorization announcement number is: CN 205555871 U. The application name is a hydraulic unhooking buckle capable of automatic unhooking. The unhooking buckle includes a remote control signal transmitter, a U-shaped buckle body, and a pin shaft inserted into the pin holes at the left and right ends of the buckle body; a support is fixed to the right end of the buckle body, and a latch cylinder, a reversing valve, an accumulator, a pump station, and a local control module for controlling the operation of various electrical equipment are installed on the support; the piston rod of the latch cylinder is fixedly connected to the pin shaft in a detachable manner; the pump oil port of the motor pump in the pump station is connected to the working oil port of the accumulator and the pressure oil port of the reversing valve, the return oil port of the reversing valve is connected back to the oil tank of the pump station, and the two working oil ports of the reversing valve are respectively connected to the rod chamber and the rodless chamber of the latch cylinder; the local control module is built with a remote control signal receiver. The shackle provided by the utility model is particularly suitable for high-altitude lifting operations and underwater lifting operations. For another example, the application publication number is: CN 103723613 A, and the application name is a remote unhooking device for lifting underwater vehicles, which is used to cooperate with a crane to lift the underwater vehicle from the shore or mother ship to the sea surface during the field test of the underwater vehicle, and complete the unhooking action on the shore or mother ship. It consists of a lifting ring body and an unhooking mechanism. The unhooking mechanism uses a load-bearing rod to lift the underwater vehicle, and resets the load-bearing rod through a compression spring to complete the unhooking action. The axial reset movement of the load-bearing rod is controlled by a positioning pin and a remote hand brake connected to the positioning pin. The present invention can achieve the purpose of remote unhooking of the underwater vehicle, avoid the personal safety problems caused by manual unhooking, and unlike the automatic unhooking device that uses the gravity of the underwater vehicle, the unhooking timing of the remote unhooking device is controlled by the operator through the remote hand brake, and can be unhooked at any time, with simple operation and reliable unhooking.

[0004] Based on the summary of past usage, for hydraulic cylinder type or pneumatic type unhooking devices, when diving to a certain depth, due to the reduction of the pressure difference between the hydraulic or pneumatic pressure and the external water pressure, and the different pressure differences at different depths, the force of the outer buckle of the hook decreases, or due to problems with the hydraulic oil and water seals, the unhooking device may accidentally operate and cause unhooking. Moreover, the leakage of hydraulic oil will cause water pollution and cannot adapt to long-term hoisting operations. For some electronic unhooking devices, when immersed below the water surface, even if there is a little exposure or poor sealing, under the combined action of water pressure and corrosion, it is very easy to cause a short circuit in the circuit, resulting in premature unhooking or unhooking failure, and manual diving assistance for unhooking has to be adopted, increasing the work difficulty and intensity. Summary of the Invention

[0005] To solve or partially solve the problems existing in the related technologies, the present application provides a mechanical unhooking device for underwater objects. This unhooking device is completely mechanically driven, and whether underwater or on the water surface, it can avoid the influence of water pressure, avoid the influence of sealing requirements, and can also avoid the influence of corrosion by electroplating corrosion-resistant materials or selecting corrosion-resistant materials, reducing the influence of the underwater operation environment on unhooking.

[0006] The present application discloses a mechanical unhooking device for underwater objects, including: a lifting rope, a lifting ring, and an unhooking device. Two lifting ropes are symmetrically arranged, and one end of each of them is connected to the lifting ring at the same time. Two unhooking devices are symmetrically arranged and are hermetically arranged at one end of the two lifting ropes; The unhooking device includes: a U-shaped clamp, on which locking holes are symmetrically formed; a locking tongue cylinder, and a locking tongue column, on which a first retaining ring is formed, and a locking groove is formed at one end; and an unlocking rope, which is similar to the brake wire of a bicycle; and an unlocking tongue frame, a first spring, and a second spring; Wherein, one end of the U-shaped clamp is connected to the locking tongue cylinder, the locking tongue column is slidably connected in the locking tongue cylinder and can penetrate into the locking hole, and the second spring is arranged between the first retaining ring and the outer side of the U-shaped clamp; The other end of the locking tongue cylinder is connected to the unlocking tongue frame, the unlocking rope is connected to the unlocking tongue frame, one end of the unlocking rope is connected to an unlocking pin, and the other end is connected to a hand grip for pulling it. The unlocking pin is slidably connected on the unlocking tongue frame and can be embedded into the locking groove; a second retaining ring is formed in the middle and lower part of the unlocking pin, and a first spring is arranged between the second retaining ring and the unlocking tongue frame.

[0007] Optionally, the U-shaped part of the U-shaped clamp is an arc-shaped plate, and the other two ends are set as axially symmetric hexagonal plates, one side of which is fixed and integrally formed with the arc-shaped plate, and the locking holes are arranged at the centers of the hexagonal plates.

[0008] Optionally, the tongue lock cylinder is set as a cylindrical cylinder, one end of which is constructed with a connecting plate that abuts against one side of the U-shaped clamp and is fastened to each other by screws; the other side of the tongue lock cylinder is constructed with internal threads and is threadedly connected with a connector. The connector is constructed with a pin hole for the release pin to slide and a column hole for the tongue lock column to slide. The tongue lock column slides in the column hole, and the release pin slides in the pin hole. When the tongue lock column is in the locked state, the release pin slides on the connector and is embedded in the lock groove.

[0009] Optionally, the tongue release frame is set as a U-shaped frame and is fastened and connected to both sides of the connector by screws; the tongue release frame is arranged perpendicular to the tongue lock cylinder so that the release pin is perpendicular to the tongue lock column.

[0010] Optionally, the outer wall of the first retaining ring is closely arranged against the inner wall of the tongue lock cylinder, and when one side of the first retaining ring contacts the connector, one end of the tongue lock column is exactly located in the lock hole.

[0011] Optionally, a seal is arranged between the lock hole and the tongue lock column.

[0012] Optionally, a gap is constructed between the lock hole and the tongue lock column.

[0013] Optionally, one end of the handgrip is provided with a hand ring, and the outer layer of the unlocking rope is fixedly arranged on the hand ring; the outer layer of the other end of the unlocking rope is threadedly adjustable on the tongue release frame, and the release pin is accommodated inside the tongue release frame and the first spring is exposed outside.

[0014] Optionally, the hand ring is set as a square frame, and a rotatable handle is arranged on the side opposite to the unlocking rope.

[0015] Optionally, all components are made of corrosion-resistant materials or are treated with corrosion resistance.

[0016] The technical solution provided by this application may include the following beneficial effects: This device is designed entirely with a mechanical structure. When the device is underwater, it is not affected by water pressure. The structure of using two lifting ropes and a lifting ring to connect two release hooks also makes the entire device at the stress center point during lifting, avoiding the influence of ocean currents and water buoyancy. The entire device works the same in the underwater environment as in the water surface environment, without restrictions, reducing the working difficulty and risk of unlocking underwater objects.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By describing the exemplary embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other objects, features, and advantages of the present application will become more obvious. Among them, in the exemplary embodiments of the present application, the same reference numerals generally represent the same components.

[0019] Figure 1 is a schematic structural view in use shown in an embodiment of the present application; Figure 2 is a side view in use shown in an embodiment of the present application; Figure 3 is a schematic structural view when the unhooking device is locked shown in an embodiment of the present application; Figure 4 is a schematic structural view when the unhooking device is tripped shown in an embodiment of the present application; Figure 5 is a cross-sectional view when the unhooking device is locked shown in an embodiment of the present application; Figure 6 is a cross-sectional view when the unhooking device is tripped shown in an embodiment of the present application; Figure 7 is a schematic structural view of a bracelet shown in an embodiment of the present application; Reference numerals: 1. Implement; 11. Lifting lug; 2. Suspension rope; 3. Hoop; 4. Unhooking device; 41. U-shaped clamp; 42. Lock tongue cylinder, 43. Lock tongue post; 44. Tongue removal frame; 45. Unlocking rope; 46. Bracelet; 47. First spring; 48. Second spring; 411. Lock hole; 421. Connecting plate; 422. Connecting head; 431. First retaining ring; 432. Lock groove; 451. Tripping pin; 452. Second retaining ring; 453. Hand buckle; 461. Grip. Detailed implementation manners

[0020] The embodiments of the present application will be described in more detail below with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] It should be understood that although terms such as "first", "second", and "third" may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0022] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 application.

[0023] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In view of the above problems, an embodiment of the present application provides a mechanical decoupling device for underwater objects. The technical solution of the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0025] In one embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The mechanical unhooking device for underwater objects shown in the figure comprises: a lifting rope 2, a lifting ring 3, and a hook remover 4. Two lifting ropes 2 are symmetrically arranged, and one end of each of the lifting ropes 2 is connected to the lifting ring 3 at the same time. Two hook removers 4 are symmetrically arranged and closed at one end of the two lifting ropes 2. In this way, the lifting ring 3 is first connected through a symmetrical lifting rope 2, and then the lifting ring 3 is buckled by using a hook on the crane. In this way, the hook removers 4 at both ends of the lifting rope 2 can be in a symmetrical state of force with the lifting ring 3 as the center, so as not to be warped.

[0026] The decoupling device 4 used in the present application adopts a purely mechanical structure, and its driving is carried out by manpower, specifically, as Figure 3 and Figure 4 As shown, there are two states, namely, the closed state and the tripped state, and both states are realized by manual mechanical control. Specifically, the decoupler 4 includes: The U-shaped clip 41 has an arc-shaped plate at its U-shaped position, and the other two ends are set as axially symmetric hexagonal plates. A locking hole 411 is symmetrically formed at the center of the hexagonal plate. When lifting an object, two protruding lifting lugs 11 are provided on the object 1, and then the U-shaped clip 41 is nested thereon. When in the locked state, it is connected by a locking tongue passing through the lifting lug 11. In this way, the U-shaped clip 41 and the lifting lug 11 can only rotate tightly around the locking tongue as the rotation center, without axial and other-direction sliding movements, avoiding the dislocation of the lifting lug 11 of the knife and the U-shaped clip 41 under the influence of underwater ocean currents and buoyancy, etc., which may cause inconvenience in unlocking.

[0027] To adapt to the above structure, the present application further includes a locking tongue cylinder 42 and a locking tongue column 43 slidably connected in the locking tongue cylinder 42. The locking tongue cylinder 42 is set as a cylindrical cylinder, and the locking tongue column 43 is set as a column. One end of the locking tongue cylinder 42 is formed with a connecting plate 421 that abuts against one side of the U-shaped clip 41 and is fastened to each other by screws, so as to facilitate positioning, connection and fastening. A first retaining ring 431 is formed on the locking tongue column 43, and a locking groove 432 is formed at one end. The present application further includes a unlocking rope 45, the unlocking rope 45 is similar to the brake wire of a bicycle; and a tongue releasing frame 44, a first spring 47, and a second spring 48.

[0028] Among them, one end of the U-shaped clip 41 is connected to the locking tongue cylinder 42, the locking tongue column 43 is slidably connected in the locking tongue cylinder 42 and can penetrate into the locking hole 411, and the second spring 48 is arranged between the first retaining ring 431 and the outside of the U-shaped clip 41; The other end of the locking tongue cylinder 42 is connected to the tongue releasing frame 44, the unlocking rope 45 is connected to the tongue releasing frame 44, one end of the unlocking rope 45 is connected to a release pin 451, and the other end is connected to a hand grip 453 for pulling it. The release pin 451 is slidably connected to the tongue releasing frame 44 and can be embedded into the locking groove 432; a second retaining ring 452 is formed in the middle and lower part of the release pin 451, and a first spring 47 is arranged between the second retaining ring 452 and the tongue releasing frame 44.

[0029] Thus, this application uses a pure mechanical structure to achieve locking and unlocking. During use, the water surface first locks the implement 1. The specific operation is to insert the U-shaped clamp 41 into the lifting lug 11 of the implement 1. Manually press the lock tongue column 43 to overcome the second spring 48 so that one end of the lock tongue column 43 passes through the lifting lug 11 and inserts into the lock hole 411. At this time, the release pin 451 is pressed and embedded into the lock groove 432 by the elastic force of the first spring 47 to prevent the lock tongue column 43 from retracting under the elastic force of the second spring 48. At this time, the entire release device 4 is in a state of locking the implement 1. Connect the release device 4 to the lifting rope 2 and the lifting ring 3. At this time, a lifting device can be used to hook the lifting ring 3 to lift the implement 1 and place it under the water surface. When the implement 1 is lifted to the required depth, only need to manually pull the handle 453 of the unlocking rope 45, and the unlocking rope 45 is pulled out of the lock groove 432 against the elastic force of the first spring 47. And the lock tongue column 43 returns to its original position under the elastic force of the second spring 48 due to the absence of restriction, so that the lock tongue column 43 disengages from the lifting lug 11, and the implement 1 falls off from the U-shaped clamp 41 to complete the unlocking.

[0030] In this application, a brake cable similar to that of a bicycle is used as the unlocking control cable. It has an outer shell and a steel wire rope housed in the outer shell. One end of the steel wire rope is connected to a release pin 451, which can move along with the sliding of the steel wire rope. And one end of the outer shell is fixed to the release tongue frame 44. In this way, the release pin 451 can move relative to the lock groove 432 to achieve locking and unlocking. Throughout the process, a mechanical structure is entirely adopted. When the device is underwater, it is not affected by water pressure. The structure of using two lifting ropes 2 and a lifting ring 3 to connect two release devices 4 also makes the entire device at the center of the lifting force, avoiding the influence of ocean currents and water buoyancy. The entire device works in the underwater environment in the same way as in the water surface environment without being restricted, reducing the working difficulty and risk of unlocking underwater implements.

[0031] In one embodiment, for the convenience of the installation and assembly of the entire structure, such as Figure 3 Figure 4 and 6As shown in the figure, the lock tongue cylinder 42 is set as a cylindrical cylinder, one end of which is constructed with a connecting plate 421 that abuts against one side of the U-shaped clamp 41 and is fastened to each other by screws; the other side of the lock tongue cylinder 42 is constructed with internal threads, and a connecting head 422 is threadedly connected. The connecting head 422 is constructed with a pin hole for the release pin 451 to slide and a column hole for the lock tongue column 43 to slide. The lock tongue column 43 slides in the column hole, and the release pin 451 slides in the pin hole. When the lock tongue column 43 is in the locked state, the release pin 451 slides on the connecting head 422 and is embedded in the lock groove 432. In this way, the installation of the lock tongue column 43 and the second spring 48 is very convenient. A stepped cylinder can also be arranged in the lock tongue cylinder 42, and the position of the lock tongue column 43 in the lock hole 411 when it is released can be adjusted by connecting connecting heads 422 with different depths. In this way, the situation that the lock tongue column 43 protrudes and affects the release after long-term use can be avoided.

[0032] In one embodiment, as Figure 3 Figure 4 shown in the figure, in order to facilitate the release pin 451 to slide when being pulled by the release rope 45 during release, the release tongue frame 44 is set as a U-shaped frame and is fastened to both sides of the connecting head 422 by screws; the release tongue frame 44 is arranged perpendicular to the lock tongue cylinder 42 so that the release pin 451 is perpendicular to the lock tongue column 43.

[0033] In one embodiment, as Figure 6 shown in the figure, a seal is arranged between the lock hole 411 and the lock tongue column 43. The outer wall of the first retaining ring 431 is closely attached to the inner wall of the lock tongue cylinder 42. When one side of the first retaining ring 431 contacts the connecting head 422, one end of the lock tongue column 43 is exactly located in the lock hole 411, thus preventing water from entering the lock tongue column 43.

[0034] In one embodiment, different from the above embodiments, a gap is constructed between the lock hole 411 and the lock tongue column 43. The outer layer thread at the other end of the release rope 45 is adjustable and arranged on the release tongue frame 44. The release pin 451 is accommodated inside the release tongue frame 44 and the first spring 47 is exposed outside, making the whole structure transparent and not affected by water pressure.

[0035] In one embodiment, as Figure 6 and Figure 7As shown, since the implement 1 will inevitably be affected by ocean currents underwater, especially when operating in the open sea, after the implement 1 is lowered onto the surface hull, it is inevitable to make certain angle adjustments. In this application, by symmetrically arranging two lifting ropes 2, one end of which is simultaneously connected to the lifting ring 3, and symmetrically arranging two unhooking devices 4, which are enclosed at one end of the two lifting ropes 2, the combined tongue-removing frame 44 is set as a U-shaped frame and is fixedly connected to both sides of the connecting head 422 by screws, and a hand ring 46 is provided at one end of the hand grip 453. The outer layer of the unlocking rope 45 is fixedly arranged on the hand ring 46. The hand ring 46 is set as a square frame, and a rotatable handle 461 is provided on the side opposite to the unlocking rope 45. In this way, when not unhooking, the unlocking rope 45 can be used as an adjustment control line to adjust the angle of the implement 1. When the appropriate angle is adjusted, pulling the hand grip 453 to unhook is sufficient.

[0036] In one embodiment, all components are made of corrosion-resistant materials or are subjected to corrosion-resistant treatment to avoid corrosion by seawater.

[0037] Finally, it should also be noted that in this text, relationships such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0039] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications or improvements to the technologies in the market, or to enable other ordinary technical personnel in the technical field to understand the disclosed embodiments.

Claims

1. An underwater implement mechanical decoupling device, characterized in that Comprising: A suspension rope (2), a suspension ring (3), a hook release (4). Two suspension ropes (2) are symmetrically arranged, one end of which is simultaneously connected to the suspension ring (3). Two hook releases (4) are symmetrically arranged and are hermetically arranged at one end of the two suspension ropes (2). The hook release (4) comprises: A U-shaped clamp (41) on which locking holes (411) are symmetrically formed; and A locking tongue cylinder (42); and A locking tongue column (43) on which a first retaining ring (431) is formed, and a locking groove (432) is formed at one end; and A unlocking rope (45) which is similar to a bicycle brake wire; and A tongue releasing frame (44), a first spring (47), a second spring (48); Wherein, one end of the U-shaped clamp (41) is connected to the locking tongue cylinder (42), the locking tongue column (43) is slidably connected in the locking tongue cylinder (42) and can penetrate into the locking hole (411), and the second spring (48) is arranged between the first retaining ring (431) and the outer side of the U-shaped clamp (41); The other end of the locking tongue cylinder (42) is connected to the tongue releasing frame (44), the unlocking rope (45) is connected to the tongue releasing frame (44), one end of the unlocking rope (45) is connected with a release pin (451), the other end is connected with a hand grip (453) for pulling it. The release pin (451) is slidably connected on the tongue releasing frame (44) and can be embedded into the locking groove (432); a second retaining ring (452) is formed at the middle and lower part of the release pin (451), and a first spring (47) is arranged between the second retaining ring (452) and the tongue releasing frame (44).

2. The mechanical decoupling device for underwater artifacts according to claim 1, wherein: The U-shaped position of the U-shaped clamp (41) is an arc-shaped plate, and the other two ends are arranged as axially symmetric hexagonal plates, one side of which is fixed and integrally formed with the arc-shaped plate, and the locking hole (411) is arranged at the center of the hexagonal plate.

3. The mechanical decoupling device for underwater implements according to claim 1, wherein: The locking tongue cylinder (42) is arranged as a cylindrical cylinder, one end of which is formed with a connecting plate (421) which abuts against one side of the U-shaped clamp (41) and is fastened to each other by screws; the other side of the locking tongue cylinder (42) is formed with an internal thread and is threadedly connected with a connector (422). The connector (422) is formed with a pin hole for the release pin (451) to slide and a column hole for the locking tongue column (43) to slide. The locking tongue column (43) is slidably connected in the column hole, the release pin (451) is slidably connected in the pin hole, and when the locking tongue column (43) is in the locked state, the release pin (451) is slidably connected on the connector (422) and is embedded into the locking groove (432).

4. An underwater implement mechanical decoupling device according to claim 1 or 2 or 3, characterized in that: The tongue releasing frame (44) is arranged as a U-shaped frame and is fastened and connected to both sides of the connector (422) by screws; the tongue releasing frame (44) is arranged perpendicular to the locking tongue cylinder (42) so that the release pin (451) is perpendicular to the locking tongue column (43).

5. The mechanical decoupling device for underwater artifacts according to claim 3, characterized in that: The outer wall of the outer circle of the first retaining ring (431) is closely attached to the inner wall of the locking tongue cylinder (42), and when one side of the first retaining ring (431) contacts the connector (422), one end of the locking tongue column (43) is exactly located in the locking hole (411).

6. The mechanical decoupling device for underwater implements according to claim 5, wherein: A seal is arranged between the locking hole (411) and the locking tongue column (43).

7. The mechanical decoupling device for underwater artifacts according to claim 5, characterized in that: A gap is formed between the keyhole (411) and the lock tongue post (43).

8. An underwater implement mechanical decoupling device according to claim 4, characterized in that: One end of the hand buckle (453) is provided with a hand ring (46), and the outer layer of the unlocking rope (45) is fixedly arranged on the hand ring (46); the outer layer of the other end of the unlocking rope (45) is threadedly adjustable on the tongue releasing frame (44), and the unlocking pin (451) is accommodated inside the tongue releasing frame (44) so that the first spring (47) is exposed outside.

9. The mechanical decoupling device for underwater artifacts according to claim 8, wherein: The hand ring (46) is arranged as a square frame, and a rotatable handle (461) is arranged on the side opposite to the unlocking rope (45).

10. An underwater implement mechanical decoupling device according to any one of claims 1 to 9, characterized in that: All components are made of corrosion-resistant materials or are treated against corrosion.

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