An underwater equipment recovery hoisting auxiliary device

By designing an auxiliary device for underwater equipment recovery and hoisting, the problems of high cost and safety hazards in existing technologies have been solved, enabling low-cost and safe underwater equipment recovery operations.

CN224392918UActive Publication Date: 2026-06-23THE 76TH RES INST OF CHINA STATE SHIPBUILDING CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 76TH RES INST OF CHINA STATE SHIPBUILDING CORP
Filing Date
2025-06-29
Publication Date
2026-06-23

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    Figure CN224392918U_ABST
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Abstract

The utility model discloses an underwater equipment recovery hoisting auxiliary device belongs to underwater equipment recovery technical field, this underwater equipment recovery hoisting auxiliary device includes body, salvage lever and thread lifting hook, the body includes first connector, wear a hole, first connector, clamping ring groove, waist shape positioning groove, second connector, second connector, connecting groove, positioning block, limit ring groove, limit ring, four limit holes, four limit balls, movable collar, spring and the ring. The underwater equipment recovery hoisting auxiliary device is moved in the limit hole through setting limit ball and is separated with clamping ring groove closely contacted, this body simple structure makes the installation and separation process of thread lifting hook and salvage lever become simple, can make the recovery personnel to operate salvage lever on the mother ship and realize the capture with underwater equipment, salvage function, not only can save salvage cost, but also can effectively guarantee the personal safety of test personnel.
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Description

Technical Field

[0001] This utility model relates to the field of underwater equipment recovery technology, specifically an underwater equipment recovery and hoisting auxiliary device. Background Technology

[0002] With the development of marine underwater resources, an increasing number of underwater equipment systems are being deployed underwater for extended periods. Due to the complexity of the marine underwater environment, underwater equipment requires recovery and maintenance. Underwater equipment systems include multi-point mooring underwater equipment systems, which have a relatively complex structure, comprising: multiple instruments connected by cables, floats and weights connected to each instrument, and release devices between the instruments and the weights, remotely controlled via a deck control unit. During normal underwater operation, the multiple instruments of this multi-point mooring underwater equipment system are held in fixed positions by the weights.

[0003] Current salvage equipment requires personnel to connect the hook on the mother ship to the underwater equipment, resulting in excessive salvage costs and posing safety hazards to the salvage personnel. To simplify and efficiently salvage and recover underwater equipment, this application designs a salvage rod that allows recovery personnel to operate from the mother ship to capture and retrieve the underwater equipment. This salvage rod not only saves on salvage costs but also effectively ensures the safety of the testing personnel. Summary of the Invention

[0004] This utility model provides an underwater equipment recovery and hoisting auxiliary device, which aims to solve the problems mentioned in the background art, such as the current salvage equipment requiring workers to connect the hook on the mother ship to the underwater equipment, resulting in excessive salvage costs and potential safety hazards to salvage workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an underwater equipment recovery and hoisting auxiliary device, comprising a body, a retrieval rod threaded to one end of the body, and a threaded hook threaded to the other end of the body; the body comprises a first connecting body, a rope hole radially penetrating the middle of the first connecting body, a first connecting head integrally connected to the bottom of the first connecting body, a snap-fit ​​ring groove formed on the lower end surface of the first connecting head, a waist-shaped positioning groove formed on the bottom of the first connecting head, a second connecting body snapped to the lower end of the first connecting body and having a first step surface and a second step surface sequentially arranged on the lower circumferential surface, and an integrally connected to the top of the second connecting body and The system includes a second connector adapted to the first connector, a connecting groove formed on the end face of the second connector and adapted to the first connector, a positioning block fixedly connected to the bottom inner side of the connecting groove and adapted to the waist-shaped positioning groove, a limiting ring groove arranged circumferentially on the outer wall of the connecting groove, a limiting ring embedded in the inner side of the limiting ring groove, four limiting holes arranged circumferentially on the inner wall of the connecting groove, four limiting balls evenly distributed circumferentially and embedded in the inner side of the limiting holes, a movable collar sleeved on the outer side of the second connector and having a third stepped surface on its inner wall, a spring sleeved on the outer side of the second connector and located between the first stepped surface and the third stepped surface, and a hanging ring fixedly connected to one side of the movable collar.

[0006] In use, the first connector extends into the connecting groove and is positioned with the positioning block through the waist-shaped positioning groove. The rope hole is used to connect the rope to connect the main body to the mother ship. The recovery personnel pull the rope to move the movable collar away from the first connector. At this time, the spring is compressed. Then, during this process, the four limit balls are pushed out by the first connector and disengage from the snap ring groove. The third step faces the movable collar to limit it. After the movable collar is released, it returns to its original position under the force of the spring. The inner wall of the movable collar squeezes the limit ball and makes it enter the limit hole. The movable collar returns to its original position by setting a limit ring in the limit ring groove. The main body has a simple structure and is easy to install, which makes the separation process of the threaded hook and the salvage rod simple. It allows the recovery personnel to operate the salvage rod on the mother ship to achieve the capture and salvage functions of underwater equipment. It can not only save salvage costs, but also effectively protect the personal safety of the test personnel.

[0007] Preferably, the top edge of the first connector is chamfered.

[0008] Preferably, a rope is fixedly connected to the surface of the hanging ring.

[0009] Preferably, all four limiting balls are adapted to the locking ring groove.

[0010] Preferably, a set screw hole is provided on the upper surface of one side of the first connector.

[0011] Preferably, a first fixing threaded hole adapted to the threaded hook is formed on the upper surface of one side of the first connector, and a set screw hole is formed on the inner wall of one side of the first fixing threaded hole.

[0012] Preferably, the bottom of the second connector has a second fixed threaded hole that is adapted to the retrieval rod.

[0013] This underwater equipment recovery and hoisting auxiliary device has a simple structure and is easy to use. The first connector is inserted into the connecting groove and positioned with the positioning block via a waist-shaped positioning groove. A rope threading hole is used to connect the main body to the mother ship. Recovery personnel pull the rope, moving the movable collar away from the first connector. At this time, the spring is compressed. During this process, four limit balls are simultaneously pushed out by the first connector and disengaged from the snap ring groove. The third step faces and limits the movable collar. After the movable collar is released, it returns to its original position under the force of the spring. The inner wall of the movable collar squeezes the limit balls and causes them to enter the limit holes. A limit ring is set in the limit ring groove to limit the movable collar that has returned to its original position. The main body has a simple structure and is easy to install, simplifying the separation process of the threaded hook and the salvage rod. Recovery personnel can operate the salvage rod on the mother ship to achieve the capture and salvage functions of the underwater equipment, saving salvage costs and effectively ensuring the personal safety of the test personnel. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main body of an underwater equipment recovery and hoisting auxiliary device;

[0015] Figure 2 This is a schematic cross-sectional view of the main structure of an underwater equipment recovery and hoisting auxiliary device.

[0016] Figure 3 A schematic diagram of the first connecting body in an underwater equipment recovery and hoisting auxiliary device;

[0017] Figure 4 A partial cross-sectional schematic diagram of the second connecting body in an underwater equipment recovery and hoisting auxiliary device;

[0018] Figure 5 A schematic diagram of the structure of the second connecting body in an underwater equipment recovery and hoisting auxiliary device;

[0019] Figure 6 This is a schematic diagram of an auxiliary device for underwater equipment recovery and hoisting.

[0020] In the picture:

[0021] 1. Salvage rod;

[0022] 2. Threaded hook;

[0023] 3. Body; 31. First Connector; 32. Rope Threading Hole; 33. First Connector Head; 34. Snap-fit ​​Ring Groove; 35. Waist-shaped Positioning Groove; 36. Second Connector; 361. First Step Surface; 362. Second Step Surface; 37. Second Connector Head; 38. Connecting Groove; 39. Positioning Block; 310. Limiting Ring Groove; 311. Limiting Hole; 312. Limiting Ball; 313. Movable Collar; 3131. Third Step Surface; 314. Spring; 315. Hanging Ring; 316. Limiting Ring;

[0024] 4. First fixed threaded hole;

[0025] 5. Set screw hole;

[0026] 6. Second fixed threaded hole. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] In the attached diagram, all identical reference numerals refer to the same components.

[0029] Example 1

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This embodiment provides an auxiliary device for underwater equipment recovery and hoisting, such as... Figures 1 to 5As shown, the underwater equipment recovery and hoisting auxiliary device includes a body 3, a salvage rod 1 threaded to one end of the body 3, and a threaded hook 2 threaded to the other end of the body 3. The body 3 includes a first connecting body 31, a rope hole 32 radially penetrating the middle of the first connecting body 31, a first connector 33 integrally connected to the bottom of the first connecting body 31, a snap-fit ​​ring groove 34 on the lower end surface of the first connector 33, a waist-shaped positioning groove 35 on the bottom of the first connector 33, a second connecting body 36 snapped to the lower end of the first connecting body 31 and having a first step surface 361 and a second step surface 362 sequentially arranged on the lower circumferential surface, a second connector 37 integrally connected to the top of the second connecting body 36 and adapted to the first connector 33, and a second connector 37 on the second connector 36. The connector 37 has a connecting groove 38 that is adapted to the first connector 33, a positioning block 39 that is fixedly connected to the bottom inner side of the connecting groove 38 and adapted to the waist-shaped positioning groove 35, a limiting ring groove 310 that is circumferentially arranged on the outer wall of the connecting groove 38, a limiting ring 316 that is embedded in the inner side of the limiting ring groove 310, four limiting holes 311 that are circumferentially arranged on the inner wall of the connecting groove 38, four limiting balls 312 that are evenly distributed circumferentially and embedded in the inner side of the limiting holes 311, a movable collar 313 that is sleeved on the outer side of the second connector 36 and has a third step surface 3131 on its inner wall, a spring 314 that is sleeved on the outer side of the second connector 36 and located between the first step surface 361 and the third step surface 3131, and a hanging ring 315 that is fixedly connected to one side of the movable collar 313.

[0032] In use, the first connector 33 extends into the connecting groove 38 and is positioned with the positioning block 39 via the waist-shaped positioning groove 35. The rope hole 32 is used to connect the rope to connect the main body 3 to the mother ship. The recovery personnel pull the rope, moving the movable collar 313 away from the first connector 31. At this time, the spring 314 is compressed. Then, during this process, the four limit balls 312 are simultaneously pushed out by the first connector 33 and disengaged from the snap ring groove 34. The third step surface 3131 limits the movable collar 313. After the movable collar 313 is released, the movable collar 313... The collar 313 returns to its original position under the force of the spring 314. The inner wall of the movable collar 313 squeezes the limiting ball 312 and makes it enter the limiting hole 311. The movable collar 313, which returns to its original position, is limited by the limiting ring 316 set in the limiting ring groove 310. The main body 3 has a simple structure and is easy to install, which makes the separation process of the threaded hook 2 and the salvage rod 1 simple. It allows the recovery personnel to operate the salvage rod 1 on the mother ship to achieve the capture and salvage functions with the underwater equipment. This not only saves salvage costs, but also effectively protects the personal safety of the test personnel.

[0033] In one embodiment, the top edge of the first connector 31 is chamfered.

[0034] In this embodiment, refer to Figure 1 and Figure 2 By setting a chamfer at the top edge of the first connector 31, the sharp part at the top of the first connector 31 is prevented from colliding with the underwater equipment.

[0035] In one embodiment, a cord is fixedly connected to the surface of the hanging ring 315.

[0036] In this embodiment, refer to Figure 5 By connecting a rope to the hanging ring 315, the recovery personnel can move the hanging ring 315 and the movable collar 313 through the rope, thereby separating the first connecting body 31 and the second connecting body 36, and thus separating the threaded hook 2 and the salvage rod 1. This makes it easier for the recovery personnel to operate the salvage rod 1 on the mother ship and greatly reduces the installation risks.

[0037] In one embodiment, all four limiting balls 312 are adapted to the snap ring groove 34.

[0038] In this embodiment, refer to Figure 2 , Figure 3 and Figure 4 When the first connector 31 and the second connector 36 are installed together, the limiting ball 312 contacts the surface of the snap ring groove 34.

[0039] In one embodiment, a first fixing threaded hole 4 adapted to the threaded hook 2 is provided on the upper surface of one side of the first connector 31, and a set screw hole 5 is provided on the inner wall of one side of the first fixing threaded hole 4.

[0040] In this embodiment, refer to Figure 1 and Figure 2 The threaded hook 2 is connected by a first fixed threaded hole 4, and the threaded hook 2 is fixed by a set screw hole 5 to prevent loosening.

[0041] In one embodiment, the bottom of the second connector 36 is provided with a second fixing threaded hole 6 that is adapted to the retrieval rod 1.

[0042] In this embodiment, refer to Figure 2 The second fixed threaded hole 6 is provided to facilitate the installation of the retrieval rod 1.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An underwater equipment recovery and hoisting auxiliary device, comprising a body (3), a salvage rod (1) threaded to one end of the body (3), and a threaded hook (2) threaded to the other end of the body (3); Its features are: The main body (3) includes a first connecting body (31), a rope hole (32) radially penetrating the middle of the first connecting body (31), a first connector (33) integrally connected to the bottom of the first connecting body (31), a snap-fit ​​ring groove (34) on the lower end surface of the first connector (33), a waist-shaped positioning groove (35) on the bottom of the first connector (33), a second connecting body (36) snapped to the lower end of the first connecting body (31) and having a first step surface (361) and a second step surface (362) sequentially arranged on the lower circumferential surface, a second connector (37) integrally connected to the top of the second connecting body (36) and adapted to the first connector (33), a connecting groove (38) on the end face of the second connector (37) and adapted to the first connector (33), and a fixed connection. The positioning block (39) is located at the bottom of the inner side of the connecting groove (38) and is adapted to the waist-shaped positioning groove (35); the limiting ring groove (310) is arranged circumferentially on the outer wall of the connecting groove (38); the limiting ring (316) is embedded in the inner side of the limiting ring groove (310); the four limiting holes (311) are arranged circumferentially on the inner wall of the connecting groove (38); the four limiting balls (312) are evenly distributed circumferentially and embedded in the inner side of the limiting holes (311); the movable collar (313) is sleeved on the outer side of the second connecting body (36) and has a third step surface (3131) on its inner wall; the spring (314) is sleeved on the outer side of the second connecting body (36) and located between the first step surface (361) and the third step surface (3131); and the hanging ring (315) is fixedly connected to one side of the movable collar (313).

2. The underwater equipment recovery and hoisting auxiliary device according to claim 1, characterized in that: The top edge of the first connector (31) is chamfered.

3. The underwater equipment recovery and hoisting auxiliary device according to claim 1, characterized in that: The hanging ring (315) has a rope fixedly connected to its surface.

4. The underwater equipment recovery and hoisting auxiliary device according to claim 1, characterized in that: All four limiting balls (312) are adapted to the snap ring groove (34).

5. The underwater equipment recovery and hoisting auxiliary device according to claim 1, characterized in that: The upper surface of one side of the first connector (31) is provided with a first fixed threaded hole (4) that is compatible with the threaded hook (2), and a set screw hole (5) is provided on one side of the inner wall of the first fixed threaded hole (4).

6. The underwater equipment recovery and hoisting auxiliary device according to claim 1, characterized in that: The bottom of the second connecting body (36) is provided with a second fixed threaded hole (6) that is compatible with the retrieval rod (1).