CN117184367A - Multistage self-floating cabin recycling device and method for blasting test - Google Patents
Multistage self-floating cabin recycling device and method for blasting test Download PDFInfo
- Publication number
- CN117184367A CN117184367A CN202311250739.3A CN202311250739A CN117184367A CN 117184367 A CN117184367 A CN 117184367A CN 202311250739 A CN202311250739 A CN 202311250739A CN 117184367 A CN117184367 A CN 117184367A
- Authority
- CN
- China
- Prior art keywords
- floating
- cabin
- cabin body
- air bag
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 31
- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000004064 recycling Methods 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000004880 explosion Methods 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a multistage self-floating cabin recovery device for blasting test, which comprises a cabin body, a self-floating assembly and an inflation assembly, wherein the cabin body is provided with a plurality of air inlets; the self-floating assembly comprises a floating body and an air bag, one end of the air bag is connected with the floating body, the other end of the air bag is connected with the inner top wall of the cabin body, and the floating body can move out of the cabin body through the explosion opening after the water enters the cabin and drive the air bag to move to be abutted with the inner side wall of the cabin body; the inflation assembly is used for inflating the air bag; the cross section of the air bag in the inflated state is larger than the size of the explosion opening of the cabin body. After the explosion source is exploded, the floating body moves out of the cabin body, and the buoyancy of the floating body plays a role in buffering the sinking of the cabin body; meanwhile, the air bag is inflated to generate larger buoyancy, a part of water in the cabin body is extruded out along with the pulling of the floating body, and a floating thrust is applied to the cabin body at the blasting opening by blocking, so that the cabin body floats to the water surface, and the cabin body floats by itself due to the multistage structure of the floating body and the air bag, so that the recovery is convenient.
Description
Technical Field
The invention relates to the technical field of cabin blasting tests, in particular to a multistage self-floating cabin recycling device and method for blasting tests.
Background
In order to know the antiknock performance of the cabin on the ship, the cabin needs to be subjected to explosion testing, in particular, an explosion source is placed near the cabin, and after the explosion source is exploded, the antiknock performance of the cabin is known by detecting the damage state of the cabin, so that the cabin is convenient to be subjected to structural design and optimization.
The cabin can fall into water after the explosion test, and equipment such as a crane is adopted to salvage the cabin at present.
However, the cabin has a large volume and a heavy weight, and is filled with water, heavy hoisting equipment is required to be equipped, and meanwhile, the connection work of the rope of the crane and the cabin is required to be carried out underwater, so that the working efficiency is low and a certain risk is provided, and the cabin is not easy to recover.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a multistage self-floating cabin recycling device and method for blasting test, wherein a cabin body falling into water can be self-floated through a multistage structure of a floating body and an air bag, and recycling is convenient.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a multistage self-floating cabin recovery device for blasting test comprises a cabin body, a self-floating assembly and an inflation assembly; the self-floating assembly comprises a floating body and an air bag, one end of the air bag is connected with the floating body, the other end of the air bag is connected with the inner top wall of the cabin body, and the floating body can move out of the cabin body through a rupture port after the cabin is filled with water and drives the air bag to move to be abutted with the inner side wall of the cabin body; the inflation assembly has an inflation end in communication with the air bag for inflating the air bag; the cross section of the air bag in the inflated state is larger than the size of the explosion opening of the cabin body.
In the above scheme, the floating body comprises a rope and a plurality of floating blocks, one end of the rope is fixedly connected with the air bag, and the plurality of floating blocks are sequentially arranged along the length direction of the rope and are fixedly connected with the rope.
In the above scheme, the floating body further comprises a plurality of fixing ropes, one ends of the fixing ropes are uniformly distributed along the circumferential direction of the air bag and fixedly connected with the air bag, and the other ends of the fixing ropes are converged into one strand and fixedly connected with the ropes.
In the above scheme, the air bag further comprises a hose, and the hose is communicated with the air bag and the air charging end of the air charging assembly; the length of the hose is larger than the length or the width of the cabin body, so that the floating body can move out of the cabin body and the air bag can move to be abutted with the inner side wall of the cabin body.
In the above scheme, the part of the hose close to the inner top wall of the cabin body is positioned at the center position of the inner top wall of the cabin body.
In the above scheme, the inflation assembly is fixedly arranged at the top of the cabin body and is positioned outside the cabin body.
In the above scheme, the device further comprises a hanging box, the hanging box is mounted on the inner top wall of the cabin body, a containing cavity capable of being opened and closed is formed in the hanging box, the floating body and the air bag are arranged in the containing cavity before blasting, and the floating body and the air bag are moved out of the containing cavity after blasting.
In the scheme, the hanging box comprises a fixed frame, a movable frame, a soft film and a pushing piece; the fixed frame is fixedly arranged on the inner top wall of the cabin body, the pushing piece is arranged on the fixed frame, the output end of the pushing piece is connected with the movable frame and used for driving the movable frame to move along the direction close to or far away from the fixed frame, the movable frame is arranged opposite to the fixed frame, an annular gap is formed between the movable frame and the fixed frame, the soft film can be clamped in the annular gap, and the containing cavity is formed among the soft film, the fixed frame and the inner top wall of the cabin body; when the flexible membrane is clamped in the annular gap, the floating body and the air bag are placed on the flexible membrane, and when the movable frame moves in the direction away from the fixed frame, the flexible membrane is separated from the annular gap under the pressure action of the floating body and the air bag, and the floating body and the air bag penetrate through the movable frame to the outside of the containing cavity.
In the above scheme, the self-floating assembly further comprises a water pump, wherein the water pump is installed at the bottom of the cabin body and used for discharging water in the cabin body.
Correspondingly, the invention also provides a multistage self-floating cabin recycling method for the blasting test, which is suitable for the cabin recycling system for the blasting test, and comprises the following implementation steps:
after the explosion source is exploded, the side wall of the cabin body forms an explosion opening and falls into water, the water continuously flows back into the cabin body, and the posture of the cabin body changes into a state that the explosion opening faces upwards along with the sinking of the cabin body;
the floating body moves along with the backward water in the cabin body in an upward direction away from the cabin body until the floating body moves out of the cabin body, and the floating body exerts buoyancy on the cabin body to buffer the sinking of the cabin body; simultaneously, the inflation assembly inflates the air bag, the inflated air bag generates larger buoyancy, and a part of water in the cabin body is extruded along with the pulling of the floating body and is blocked at the blasting opening to apply an upward floating thrust to the cabin body, so that the cabin body floats to the water surface.
The invention has the beneficial effects that:
1. after the explosion source is exploded, the floating body moves along with water flowing backward in the cabin body in an upward direction away from the cabin body until the water moves out of the cabin body, and the buoyancy of the floating body is applied to the cabin body to buffer the sinking of the cabin body; simultaneously, the air bag is inflated through the inflation assembly, the inflated air bag generates larger buoyancy, and part of water in the cabin body is extruded along with the pulling of the floating body and is blocked at the blasting opening to apply an upward-floating thrust to the cabin body, so that the cabin body floats to the water surface. The multistage structure of body and gasbag can make the cabin body that falls into the aquatic self-floating, and it is convenient to retrieve, can solve the very difficult problem of salvaging the cabin through equipment such as loop wheel machine.
2. In order to further improve the self-floating capacity of the cabin body, the self-floating assembly further comprises a water pump, and the water pump is arranged at the bottom of the cabin body and is used for discharging water in the cabin body.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of the overall structure of a multistage self-floating cabin recovery device for blasting test according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a connection between a floating body and an air bag in a multistage self-floating cabin recovery device for blasting test according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hanging box in the multi-stage self-floating cabin recycling device for blasting test according to the embodiment of the invention;
FIG. 4 is a schematic view of a structure of a soft film moving out of an annular gap in a multi-stage self-floating cabin recovery device for burst test according to an embodiment of the present invention;
fig. 5 is a schematic working diagram of a self-floating assembly in a multi-stage self-floating cabin recycling device for blasting test according to an embodiment of the present invention.
In the figure: 100. a cabin body; 110. a burst vent;
200. a self-floating assembly; 210. a floating body; 211. a rope; 212. a floating block; 213. a fixing rope; 220. an air bag; 221. a hose; 230. a water pump;
300. an inflation assembly;
400. hanging a box; 410. a fixed frame; 420. a moving frame; 430. a soft film; 440. pushing piece.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 and 5, the multi-stage self-floating cabin recycling device for blasting test provided by the invention comprises a cabin body 100, a self-floating assembly 200 and an inflation assembly 300. Wherein: the chamber body 100 is a body structure for performing a burst test. The self-floating assembly 200 is a structure for applying buoyancy to the cabin body 100, so that the cabin body 100 floats to the water surface. The self-floating assembly 200 comprises a floating body 210 and an air bag 220, one end of the air bag 220 is connected with the floating body 210, the other end of the air bag 220 is connected with the inner top wall of the cabin body 100, and the floating body 210 can move out of the cabin body 100 through the rupture port 110 after the cabin water enters, and drives the air bag 220 to move to be abutted with the inner side wall of the cabin body 100. The inflation assembly 300 is a structure that inflates the airbag 220. The air-filling assembly 300 is fixedly arranged at the top of the cabin body 100, and the air-filling assembly 300 is provided with an air-filling end communicated with the air bag 220 for filling the air bag 220 with air. In order to enable the airbag 220 to block the blast opening 110, the cross section of the airbag 220 in the inflated state is larger than the size of the blast opening 110 of the cabin body 100.
When the explosion source is exploded, the side wall of the cabin body 100 forms the explosion hole 110 and falls into water, the state of the explosion hole 110 is changed along with the sinking of the water into the cabin body 100, the floating body 210 moves along with the water flowing backward in the cabin body 100 in the upward direction away from the cabin body 100 until the water moves out of the cabin body 100, the buoyancy of the floating body 210 is applied to the cabin body 100, the sinking of the cabin body 100 is buffered, meanwhile, the air bag 220 is inflated by the inflation assembly 300, the inflated air bag 220 generates larger buoyancy, and part of water in the cabin body 100 is extruded along with the pulling of the floating body 210 and is blocked by the upward thrust applied to the cabin body 100 at the explosion hole 110, so that the cabin body 100 floats to the water surface. The multi-stage structure of the floating body 210 and the airbag 220 allows the cabin body 100 falling into the water to float and be easily recovered.
The floating body 210 applies a force to the cabin body 100 by its own buoyancy to slow down the sinking speed of the cabin body 100. The floating body 210 may be a structure having buoyancy such as foam.
As shown in fig. 2, in one embodiment, the floating body 210 includes a rope 211 and a plurality of floating blocks 212, one end of the rope 211 is fixedly connected with the airbag 220, and the plurality of floating blocks 212 are sequentially disposed along the length direction of the rope 211 and are fixedly connected with the rope 211.
It is understood that the floating block 212 may be a spherical block, a square block, etc., and the shape of the floating block 212 is not limited in the embodiment of the present invention.
As shown in fig. 2, in order to stabilize the connection of the tether 211 with the airbag 220, in one embodiment, the floating body 210 further includes a plurality of fixing ropes 213, one ends of the plurality of fixing ropes 213 are uniformly arranged along the circumference of the airbag 220 and fixedly connected with the airbag 220, and the other ends of the plurality of fixing ropes 213 are gathered together and fixedly connected with the tether 211.
As shown in fig. 2, to achieve the inflation of the airbag 220 and the airbag 220 being movable into abutment with the inner side wall of the cabin body 100, in one embodiment, the airbag 220 further includes a hose 221, the hose 221 communicates the airbag 220 with the inflation end of the inflation assembly 300, the length of the hose 221 is greater than the length or width of the cabin body 100, so that the floating body 210 can be moved out of the cabin body 100 and the airbag 220 can be moved into abutment with the inner side wall of the cabin body 100. The portion of the hose 221 adjacent to the inner top wall of the cabin body 100 is located at the center position of the inner top wall of the cabin body 100.
It should be noted that the hose 221 should have a certain deformability, so that the hose 221 may be coiled and stacked on top of the cabin body 100, and at the same time, the hose 221 should have a certain tensile capability, so as to avoid the hose 221 from being broken.
In one embodiment, the inflation assembly 300 includes a plurality of gas cylinders with gas outlets in communication with the bladder 220 and with valves disposed at the gas outlets.
In order to allow the floating body 210 and the air bag 220 to be accommodated in the inner top wall of the cabin body 100, in this embodiment, the recovery device further comprises a hanging box 400, the hanging box 400 is installed on the inner top wall of the cabin body 100, an openable and closable accommodating cavity is formed in the hanging box 400, the floating body 210 and the air bag 220 are placed in the accommodating cavity before blasting, and the floating body and the air bag 220 are moved out of the accommodating cavity after blasting.
To open and close the holding chamber, the hanging box 400 is usually configured as a box with a flip cover at the bottom, however, the flip of the cover may block the blast hole 110, affecting the movement of the float 210 and the balloon 220. For this reason, as shown in fig. 3, the hanging box 400 in this embodiment includes a fixed frame 410, a movable frame 420, a flexible membrane 430 and a pushing member 440, wherein the fixed frame 410 is fixedly disposed on an inner top wall of the cabin body 100, the pushing member 440 is mounted on the fixed frame 410, an output end of the pushing member 440 is connected with the movable frame 420 for driving the movable frame 420 to move along a direction approaching or separating from the fixed frame 410, the movable frame 420 is disposed opposite to the fixed frame 410, an annular gap is formed between the movable frame 420 and the fixed frame 410, and the flexible membrane 430 can be embedded in the annular gap to form a holding cavity between the flexible membrane 430, the fixed frame 410 and the inner top wall of the cabin body 100.
Specifically, when the flexible film 430 is clamped in the annular gap, the floating body 210 and the air bag 220 may be placed on the flexible film 430, and when the moving frame 420 moves in a direction away from the fixed frame 410, as shown in fig. 4, the flexible film 430 is separated from the annular gap by the pressure of the floating body 210 and the air bag 220, and the floating body 210 and the air bag 220 pass through the moving frame 420 to the outside of the accommodating chamber.
The pushing member 440 may be implemented by an electric push rod, etc., and it is understood that the valve of the gas cylinder and the action of the electric push rod may be opened by the automatic opening of the cabin body 100 when the cabin body 100 falls into water, and whether the cabin body 100 falls into water may be implemented by means of a water level sensor, etc.
To further enhance the self-floating capability of the cabin body 100, the self-floating assembly 200 of the present embodiment further includes a water pump 230, wherein the water pump 230 is installed at the bottom of the cabin body 100 to drain the water in the cabin body 100.
In one embodiment, the water pump 230 is mounted at a central location of the bottom of the cabin body 100 to accommodate the blast ports 110 at the different sidewalls.
Correspondingly, the embodiment of the invention also provides a multistage self-floating cabin recycling method for the blasting test, which is suitable for the cabin recycling system for the blasting test, and comprises the following implementation steps of:
before the blasting experiment, the floating body 210 and the air bag 220 are arranged in the holding cavity of the hanging box 400;
after the explosion source is exploded, the side wall of the cabin body 100 forms an explosion opening 110 and falls into water, the water continuously flows back into the cabin body 100, and the posture of the cabin body 100 changes into a state that the explosion opening 110 faces upwards along with the sinking of the cabin body; while the cabin is in water, the pushing piece 440 pushes the movable frame 420 to move towards the direction away from the fixed frame 410, the soft membrane 430 breaks away from the annular gap under the pressure action of the floating body 210 and the air bag 220, and the floating body 210 and the air bag 220 penetrate through the movable frame 420 to the outside of the containing cavity;
the floating body 210 moves along with the water flowing backward in the cabin body 100 in an upward direction away from the cabin body 100 until the water moves out of the cabin body 100, and the buoyancy of the floating body 210 is applied to the cabin body 100 to buffer the sinking of the cabin body 100; meanwhile, the air bag 220 is inflated by the inflation assembly 300, the inflated air bag 220 generates larger buoyancy, and a part of water in the cabin body 100 is extruded along with the pulling of the floating body 210 and is blocked at the explosion port 110 to apply an upward thrust to the cabin body 100, so that the cabin body 100 floats to the water surface.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (10)
1. The multistage self-floating cabin recovery device for the blasting test is characterized by comprising a cabin body, a self-floating assembly and an inflation assembly; the self-floating assembly comprises a floating body and an air bag, one end of the air bag is connected with the floating body, the other end of the air bag is connected with the inner top wall of the cabin body, and the floating body can move out of the cabin body through a rupture port after the cabin enters water and drives the air bag to move to be abutted with the inner side wall of the cabin body; the inflation assembly has an inflation end in communication with the air bag for inflating the air bag; the cross section of the air bag in the inflated state is larger than the size of the explosion opening of the cabin body.
2. The multistage self-floating cabin recycling device for blasting test according to claim 1, wherein the floating body comprises a rope and a plurality of floating blocks, one end of the rope is fixedly connected with the air bag, and the plurality of floating blocks are sequentially arranged along the length direction of the rope and are fixedly connected with the rope.
3. The multistage self-floating cabin recycling device for blasting test according to claim 2, wherein the floating body further comprises a plurality of fixing ropes, one ends of the plurality of fixing ropes are uniformly arranged along the circumferential direction of the air bag and fixedly connected with the air bag, and the other ends of the plurality of fixing ropes are converged into one strand and fixedly connected with the ropes.
4. The multi-stage self-floating cabin recovery device for blast test of claim 1, wherein the airbag further comprises a hose that communicates the airbag with the inflation end of the inflation assembly; the length of the hose is larger than the length or the width of the cabin body, so that the floating body can move out of the cabin body and the air bag can move to be abutted with the inner side wall of the cabin body.
5. The burst test multi-stage self-floating cabin recovery device of claim 4, wherein the portion of the hose proximate the inner top wall of the cabin body is located at a central location of the inner top wall of the cabin body.
6. The multi-stage self-floating cabin recycling device for blast tests according to claim 1, wherein the air charging assembly is fixedly arranged at the top of the cabin body and is positioned outside the cabin body.
7. The multi-stage self-floating cabin recycling device for blasting test according to claim 1, further comprising a hanging box, wherein the hanging box is installed on the inner top wall of the cabin body, a containing cavity capable of being opened and closed is formed in the hanging box, the floating body and the air bag are arranged in the containing cavity before blasting, and the floating body and the air bag are moved out of the containing cavity after blasting.
8. The multi-stage self-floating cabin recycling device for blast test according to claim 7, wherein the hanging box comprises a fixed frame, a movable frame, a soft film and a pushing piece; the fixed frame is fixedly arranged on the inner top wall of the cabin body, the pushing piece is arranged on the fixed frame, the output end of the pushing piece is connected with the movable frame and used for driving the movable frame to move along the direction close to or far away from the fixed frame, the movable frame is arranged opposite to the fixed frame, an annular gap is formed between the movable frame and the fixed frame, the soft film can be clamped in the annular gap, and the containing cavity is formed among the soft film, the fixed frame and the inner top wall of the cabin body; when the flexible membrane is clamped in the annular gap, the floating body and the air bag are placed on the flexible membrane, and when the movable frame moves in the direction away from the fixed frame, the flexible membrane is separated from the annular gap under the pressure action of the floating body and the air bag, and the floating body and the air bag penetrate through the movable frame to the outside of the containing cavity.
9. The multi-stage self-floating cabin recovery device for blast test of claim 1, wherein the self-floating assembly further comprises a water pump mounted to the bottom of the cabin body for draining water in the cabin body.
10. A multistage self-floating cabin recycling method for explosion testing, which is suitable for the cabin recycling system for explosion testing according to any one of claims 1-9, and comprises the following implementation steps:
after the explosion source is exploded, the side wall of the cabin body forms an explosion opening and falls into water, the water continuously flows back into the cabin body, and the posture of the cabin body changes into a state that the explosion opening faces upwards along with the sinking of the cabin body;
the floating body moves along with the backward water in the cabin body in an upward direction away from the cabin body until the floating body moves out of the cabin body, and the floating body exerts buoyancy on the cabin body to buffer the sinking of the cabin body; simultaneously, the inflation assembly inflates the air bag, the inflated air bag generates larger buoyancy, and a part of water in the cabin body is extruded along with the pulling of the floating body and is blocked at the blasting opening to apply an upward floating thrust to the cabin body, so that the cabin body floats to the water surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311250739.3A CN117184367A (en) | 2023-09-25 | 2023-09-25 | Multistage self-floating cabin recycling device and method for blasting test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311250739.3A CN117184367A (en) | 2023-09-25 | 2023-09-25 | Multistage self-floating cabin recycling device and method for blasting test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117184367A true CN117184367A (en) | 2023-12-08 |
Family
ID=88997941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311250739.3A Pending CN117184367A (en) | 2023-09-25 | 2023-09-25 | Multistage self-floating cabin recycling device and method for blasting test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117184367A (en) |
-
2023
- 2023-09-25 CN CN202311250739.3A patent/CN117184367A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104044712A (en) | Method for salvaging sunken ship by adopting rubber air bag | |
| KR101694864B1 (en) | Ship balancing apparatus | |
| CN107140156B (en) | Method for integrally salvaging sunken ship by bottom-supporting steel girder | |
| MX2011005321A (en) | Subsea well intervention module. | |
| CN110065612B (en) | Emergency buoy releasing device for submersible | |
| CN205538316U (en) | A seabed sampling device for sea exploration | |
| CN115214857A (en) | Dynamic unfolding device for anti-collision air bag of medium and large ship | |
| CN101466590B (en) | disconnectable mooring system | |
| CN106005311A (en) | Deep-sea adaptive rising device | |
| CN101885373A (en) | Guide net shooter for recovering marine returning capsule in high sea state | |
| US3654649A (en) | System for retrieving anchor chains | |
| CN117184367A (en) | Multistage self-floating cabin recycling device and method for blasting test | |
| CN116447393B (en) | Stable anti-drop pipeline interfacing apparatus | |
| US4876979A (en) | Apparatus for deploying and recovering a seaborne vessel | |
| CN115465429B (en) | Emergency drainage device and drainage method for underwater vehicle with double protection functions | |
| JP4255325B2 (en) | Underwater carrying device and method for carrying an object to be lifted using this underwater carrying device | |
| US5666898A (en) | Equipment for raising sunken vessels | |
| US3080844A (en) | Maritime salvage equipment | |
| CN108974269B (en) | Hold in the palm ship raft | |
| CN110043672B (en) | Hand-pulling type air release valve | |
| CN110775223A (en) | Self-inflating recovery device for small and light self-propelled device | |
| CN105620683A (en) | Rubber fishing pontoon | |
| CN111809591A (en) | Self-floating and submerging positioning and mounting device for steel frame by using air bag to assist floating and construction method | |
| CN105129048A (en) | Rotary-righting salvaging method for sunken ship and main equipment | |
| CN115071885B (en) | Sonar cloth recovery device applied to underwater robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |