CN108680949B - Quick connection and anti-collision device of hydrophone on Kevlar pull rope - Google Patents
Quick connection and anti-collision device of hydrophone on Kevlar pull rope Download PDFInfo
- Publication number
- CN108680949B CN108680949B CN201810870742.8A CN201810870742A CN108680949B CN 108680949 B CN108680949 B CN 108680949B CN 201810870742 A CN201810870742 A CN 201810870742A CN 108680949 B CN108680949 B CN 108680949B
- Authority
- CN
- China
- Prior art keywords
- hydrophone
- kevlar
- hook body
- rope
- main hook
- 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.)
- Active
Links
- 229920000271 Kevlar® Polymers 0.000 title claims abstract description 61
- 239000004761 kevlar Substances 0.000 title claims abstract description 61
- 238000013016 damping Methods 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/186—Hydrophones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/10—Aspects of acoustic signal generation or detection
- G01V2210/14—Signal detection
- G01V2210/142—Receiver location
- G01V2210/1423—Sea
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Vibration Prevention Devices (AREA)
- Catching Or Destruction (AREA)
Abstract
The quick connection and anti-collision device for the hydrophone on the Kevlar stay rope comprises an upper bracket and a lower bracket, wherein a universal joint is arranged at the right end of the upper bracket, a round hole is formed at the right end of the lower bracket, the middle part of the upper bracket is connected with the upper bracket and the lower bracket, a hasp is fixed on the left sides of the upper bracket and the lower bracket and comprises an upper main hook body, a lower main hook body and a middle hook body positioned between the two main hook bodies, the right end of the middle hook body is connected between the two main hook bodies and is provided with a torsion spring, the upper end of the hydrophone is hung on the universal joint and penetrates through the round hole, a lantern ring is sleeved at the position of the hydrophone corresponding to the round hole, a damping ring is coated on the outer side of the lantern ring, and the hasp is buckled on the Kevlar stay rope; the hydrophone is not directly mounted on the Kevlar stay rope, when the Kevlar stay rope inclines to a certain extent in the sea due to various sea conditions, the hydrophone plays a role in protection through the action of the damping ring, the upper support and the lower support are buckled on the Kevlar stay rope through the buckles, displacement in the rope direction cannot occur, and the position of the hydrophone is relatively fixed.
Description
Technical Field
The invention relates to a quick connection and anti-collision device of a hydrophone on a Kevlar rope.
Background
Currently, marine multipass earthquakes play an important role in marine geology and mineral resource investigation. As a novel high-resolution seismic signal receiving system, an anchored deep sea sulfide seismic exploration data receiving device has gradually gained important application in recent years.
In the anchored deep sea sulfide seismic prospecting data receiving device, a hydrophone array is an essential core component in a data receiving unit, and is mounted on a special Kevlar rope to cooperatively perform data acquisition work. The most commonly used hydrophone fixing scheme is to wind the hydrophone by using a fine Kevlar rope for multiple turns, and then mount the hydrophone on a main Kevlar rope bearing point by means of a bracket. The currently existing solutions have the following two problems:
firstly, hydrophones are generally mounted on Kevlar ropes in parallel, however, after the Kevlar ropes are sunk into the sea level, various objective factors such as ocean currents exist, the ocean currents are not necessarily kept vertical, the positions of the hydrophones and a support can be changed along with the change of the ocean currents, an impact phenomenon exists, recorded data have noise signals, the data quality is greatly affected, and meanwhile hidden danger of equipment damage exists. In practical use, the phenomenon that the hydrophone is wound on the Kevlar rope is also commonly found, and the risk of equipment loss is increased.
Secondly, in an actual detection task, the hydrophone spacing is adjusted according to different exploration targets; in the receiving and releasing process, the hydrophone needs to be frequently mounted/dismounted according to actual conditions. However, the current hydrophone mounting/unloading adjustment scheme mainly depends on manual and mechanical hydrophone mounting/unloading adjustment schemes, is tedious and time-consuming in work, and brings potential safety hazards to broadside operators under the condition of poor sea conditions. How to connect the hydrophone to the Kevlar rope quickly and stably, and the quick adjustment of the connection point of the hydrophone on the Kevlar rope is a very troublesome technical problem in current offshore operation, and affects the offshore working efficiency and the operation safety.
Disclosure of Invention
Aiming at the defects existing in the problems, the invention provides a quick connection and anti-collision device of a hydrophone on a Kevlar rope, which comprises the following components:
the device comprises an upper bracket and a lower bracket, wherein a universal joint is arranged at the right end of the upper bracket, and a round hole is formed at the right end of the lower bracket;
the connecting frame is connected with the upper bracket and the lower bracket in the middle;
the hasp is fixed on the left sides of the upper bracket and the lower bracket and comprises an upper main hook body, a lower main hook body and a middle hook body positioned between the two main hook bodies, wherein the right end of the middle hook body is connected between the two main hook bodies and is provided with a torsion spring;
the hydrophone upper end hangs on the universal joint and passes the round hole, hydrophone corresponds the round hole department cover has the lantern ring, the outside cladding of lantern ring has the damping ring, the hasp is detained on the Kevlar stay cord.
As a further improvement of the invention, the middle part of the connecting frame is a holding part, and the holding part is provided with net knurling.
As a further improvement of the invention, the distance between the main hook body and the intermediate hook body is larger than the diameter of the kevlar rope.
As a further improvement of the invention, the main hook body is provided with a straight part, a bending part and a guiding part in sequence from right to left, and the middle hook body is provided with a guiding part, a positioning part and a unhooking part in sequence from right to left.
As a further improvement of the invention, the bending part and the positioning part form a clamping part, and the curvature radius of the bending part and the positioning part is consistent with the radius of the kevlar pulling rope.
As a further improvement of the invention, the lantern ring is movably connected with the hydrophone through a set screw.
As a further development of the invention, the damping ring has a certain elasticity.
The beneficial effects of the invention are as follows:
the hydrophone is not directly mounted on the Kevlar stay rope, when the Kevlar stay rope is inclined to a certain extent in the sea due to various sea conditions, the hydrophone can prevent collision through the action of the damping ring, the upper support and the lower support are buckled on the Kevlar stay rope through the buckles, so that the operation of operators is convenient, meanwhile, displacement in the rope direction can not occur, and the positions among the hydrophones are relatively fixed; the hydrophone is connected with the Kevlar rope through the rigid structure, and when underwater water flow is urgent, the phenomenon that the hydrophone and the Kevlar rope are wound can not occur.
Drawings
FIG. 1 is a front view of a quick connection and anti-collision device for a hydrophone in a Kevlar rope;
FIG. 2 is an enlarged view of the buckle;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is an enlarged view of the position A of FIG. 1;
FIG. 5 is a partial bottom view of FIG. 4;
FIG. 6 is a schematic diagram of a hydrophone;
FIGS. 7-9 are schematic views of the operation of the buckle (in top view);
FIG. 10 is a schematic view showing the deformation of the Kevlar rope at sea;
fig. 11 is a schematic view of the sea kevlar rope when tilted.
In the figure: 1. a Kevlar rope; 2. a hasp; 21. a main hook body; 211. a straight line portion; 212. a bending portion; 213. a guide part; 22. a middle hook body; 221. a guide section; 222. a positioning part; 223. unhooking parts; 3. a torsion spring; 4. an upper bracket; 5. a connecting frame; 51. a hand grip; 6. a universal joint; 7. a hydrophone; 8. a collar; 9. a damping ring; 10. a lower bracket; 101. and a round hole.
Detailed Description
As shown in FIG. 1, the quick connection and anti-collision device for a hydrophone on a Kevlar rope comprises an upper bracket 4 and a lower bracket 10, wherein a universal joint 6 is arranged at the right end of the upper bracket 4, and a round hole 101 is formed at the right end of the lower bracket 10; the middle part of the connecting frame 5 is connected with the upper bracket 4 and the lower bracket 10, the middle part of the connecting frame 5 is provided with a holding part 51, and net knurling is processed on the holding part 51; as shown in fig. 2 and 3, the buckle 2 is fixed on the left side of the upper bracket 4 and the lower bracket 10, the buckle 2 comprises an upper main hook body 21, a lower main hook body 21 and a middle hook body 22 positioned between the two main hook bodies 21, the middle hook body 22 is connected between the two main hook bodies 21 at the right end and is provided with a torsion spring 3, and the distance between the main hook bodies 21 and the middle hook body 22 is larger than the diameter of a Yu Kaifu pull rope 1; as shown in fig. 7, the main hook body 21 includes a straight portion 211, a curved portion 212 and a guide portion 213 in this order from right to left, and the intermediate hook body 22 includes a guide portion 221, a positioning portion 222 and a unhooking portion 223 in this order from right to left, the curved portion 212 and the positioning portion 222 forming a clamping portion, and the radius of curvature of the curved portion 212 and the positioning portion 222 is identical to the radius of the kevlar rope 1; as shown in fig. 4 and 5, the upper end of the hydrophone 7 is hung on the universal joint 6 and passes through the round hole 101, a lantern ring 8 is sleeved at the position of the hydrophone 7 corresponding to the round hole 101 (the lantern ring 8 is movably connected with the hydrophone 7 through a set screw), a damping ring 9 is coated on the outer side of the lantern ring 8, and the damping ring 9 has certain elasticity; the hasp 2 is buckled on the Kevlar rope 1.
The hydrophone is not directly mounted on the Kevlar stay rope, when the Kevlar stay rope is inclined to a certain extent in the sea due to various sea conditions, the hydrophone can prevent collision through the action of the damping ring, the upper support and the lower support are buckled on the Kevlar stay rope through the buckles, so that the operation of operators is convenient, meanwhile, displacement in the rope direction can not occur, and the positions among the hydrophones are relatively fixed; the hydrophone is connected with the Kevlar rope through the rigid structure, and when underwater water flow is urgent, the phenomenon that the hydrophone and the Kevlar rope are wound can not occur.
When in specific use, the invention is described with reference to the drawings for convenient understanding;
the Kevlar rope is vertically placed in the sea on the side of the ship, a worker holds the Kevlar rope by a hand grip and buckles the buckle to a preset position on the Kevlar rope (or the device is buckled on the Kevlar rope by mechanical equipment), and the buckling process of the buckle is as follows: as shown in fig. 7, in the initial state, when the kevlar rope is pulled by the sea anchor at the bottom, the kevlar rope has enough tension, and acts on the guiding portion of the middle hook body, the middle hook body overcomes the force of the torsion spring to rotate, so that the kevlar rope enters the bending portion along the straight portion of the main hook body, the middle hook body is reset by the force of the torsion spring, and the positioning portion of the middle hook body locks the kevlar rope (see fig. 8), and at this time, the kevlar rope is in a straight line state (see fig. 2) due to a certain tension.
When the hydrophone is immersed into the sea, the device is subjected to the upward buoyancy effect due to the effect of the floating ball group, the Kevlar pull rope is not subjected to the vertical tension effect any more, the torsion of the torsion spring enables the hasp to deform to a certain extent at the joint of the Kevlar pull rope (see fig. 9 and 10), and the Kevlar pull rope part extends out of the outer side of the main hook body at the joint, so that the hydrophone is ensured not to displace in the vertical direction of the Kevlar pull rope in the sea; in addition, due to the existence of other factors such as dark current, the Kevlar rope can incline at a small angle, and the hydrophone is effectively protected from being damaged by the buffering effect of the damping ring outside the lantern ring (see figure 11).
When the hydrophone needs to be recovered, the Kevlar rope has certain tension due to certain gravity, an operator holds the hand holding part and exerts force in the opposite direction, the Kevlar rope slides out along the guide part, and if the hydrophone does not work, the operator manually operates the unhooking part to reset.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Quick connect and buffer stop of hydrophone at Kevlar stay cord, its characterized in that includes:
the device comprises an upper bracket (4) and a lower bracket (10), wherein a universal joint (6) is arranged at the right end of the upper bracket (4), and a round hole (101) is formed at the right end of the lower bracket (10);
the connecting frame (5), the said connecting frame (5) connects the said upper bracket (4), said lower bracket (10) in the middle part;
the hasp (2) is fixed on the left sides of the upper bracket (4) and the lower bracket (10), the hasp (2) comprises an upper main hook body, a lower main hook body (21) and an intermediate hook body (22) positioned between the two main hook bodies (21), and the intermediate hook body (22) is connected between the two main hook bodies (21) at the right end and is provided with a torsion spring (3);
the upper end of the hydrophone (7) is hung on the universal joint (6) and penetrates through the round hole (101), a sleeve ring (8) is sleeved at the position, corresponding to the round hole (101), of the hydrophone (7), a damping ring (9) is coated on the outer side of the sleeve ring (8), and the hasp (2) is buckled on the Kevlar pull rope (1);
the main hook body (21) is provided with a straight part (211), a bending part (212) and a guiding part (213) in sequence from right to left, and the middle hook body (22) is provided with a guiding part (221), a positioning part (222) and a unhooking part (223) in sequence from right to left;
the bending part (212) and the positioning part (222) form a clamping part, and the curvature radius of the bending part (212) and the positioning part (222) is consistent with the radius of the Kevlar rope (1).
2. The quick connection and collision avoidance device for a hydrophone on a kevlar rope according to claim 1, wherein: the middle part of the connecting frame (5) is provided with a holding part (51), and the holding part (51) is provided with net knurling.
3. The quick connection and collision avoidance device for a hydrophone on a kevlar rope according to claim 1, wherein: the distance between the main hook body (21) and the middle hook body (22) is larger than the diameter of the Kevlar pull rope (1).
4. The quick connection and collision avoidance device for a hydrophone on a kevlar rope according to claim 1, wherein: the lantern ring (8) is movably connected with the hydrophone (7) through a set screw.
5. The quick connection and collision avoidance device for a hydrophone on a kevlar rope according to claim 1, wherein: the damping ring (9) has a certain elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870742.8A CN108680949B (en) | 2018-08-02 | 2018-08-02 | Quick connection and anti-collision device of hydrophone on Kevlar pull rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870742.8A CN108680949B (en) | 2018-08-02 | 2018-08-02 | Quick connection and anti-collision device of hydrophone on Kevlar pull rope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108680949A CN108680949A (en) | 2018-10-19 |
| CN108680949B true CN108680949B (en) | 2024-01-26 |
Family
ID=63815663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810870742.8A Active CN108680949B (en) | 2018-08-02 | 2018-08-02 | Quick connection and anti-collision device of hydrophone on Kevlar pull rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108680949B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973236A (en) * | 1974-12-23 | 1976-08-03 | Lockheed Missiles & Space Company, Inc. | Horizontal hydrophone array |
| US5412621A (en) * | 1993-09-23 | 1995-05-02 | Whitehall Corporation | Encapsulated hydrophone element for towed hydrophone array |
| US5691957A (en) * | 1994-06-30 | 1997-11-25 | Woods Hole Oceanographic Institution | Ocean acoustic tomography |
| KR19990049001A (en) * | 1997-12-11 | 1999-07-05 | 전주범 | Underwater Listening System Fixed Structure to Improve Low Frequency Sound Detection |
| WO1999053341A1 (en) * | 1998-04-15 | 1999-10-21 | Schlumberger Holdings Limited | Automated streamer production |
| CN201926496U (en) * | 2010-11-19 | 2011-08-10 | 中国电子科技集团公司第二十三研究所 | Separation-type grating sensor |
| KR20130059952A (en) * | 2011-11-29 | 2013-06-07 | 현대중공업 주식회사 | Lifting type hydrophone apparatus for drillship |
| CN103868579A (en) * | 2014-03-27 | 2014-06-18 | 海鹰企业集团有限责任公司 | Hanging device for co-oscillating vector hydrophone |
| CN104401473A (en) * | 2014-09-18 | 2015-03-11 | 中国海洋大学 | Underwater acoustic glider |
| CN105738951A (en) * | 2016-05-06 | 2016-07-06 | 广州海洋地质调查局 | Multi-node OBS vertical cable earthquake collection system |
| KR20170104193A (en) * | 2016-03-07 | 2017-09-15 | 한국기계연구원 | underwater radiated noise measuring device and establishment method for the same device |
| CN107592590A (en) * | 2017-08-10 | 2018-01-16 | 大连理工大学 | Sound pick up equipment is monitored in a kind of underwater sampling |
| JP2018040742A (en) * | 2016-09-09 | 2018-03-15 | 五洋建設株式会社 | Survey method of water bottom foundation |
| CN208399704U (en) * | 2018-08-02 | 2019-01-18 | 国家海洋局第二海洋研究所 | A kind of hydrophone is in the quick connection of Kev drawstring and anticollision device, collision-prevention device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6614724B2 (en) * | 2000-11-13 | 2003-09-02 | Input/Output, Inc. | Hydrophone array with individually switchable hydrophone sensors |
-
2018
- 2018-08-02 CN CN201810870742.8A patent/CN108680949B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973236A (en) * | 1974-12-23 | 1976-08-03 | Lockheed Missiles & Space Company, Inc. | Horizontal hydrophone array |
| US5412621A (en) * | 1993-09-23 | 1995-05-02 | Whitehall Corporation | Encapsulated hydrophone element for towed hydrophone array |
| US5691957A (en) * | 1994-06-30 | 1997-11-25 | Woods Hole Oceanographic Institution | Ocean acoustic tomography |
| KR19990049001A (en) * | 1997-12-11 | 1999-07-05 | 전주범 | Underwater Listening System Fixed Structure to Improve Low Frequency Sound Detection |
| WO1999053341A1 (en) * | 1998-04-15 | 1999-10-21 | Schlumberger Holdings Limited | Automated streamer production |
| CN201926496U (en) * | 2010-11-19 | 2011-08-10 | 中国电子科技集团公司第二十三研究所 | Separation-type grating sensor |
| KR20130059952A (en) * | 2011-11-29 | 2013-06-07 | 현대중공업 주식회사 | Lifting type hydrophone apparatus for drillship |
| CN103868579A (en) * | 2014-03-27 | 2014-06-18 | 海鹰企业集团有限责任公司 | Hanging device for co-oscillating vector hydrophone |
| CN104401473A (en) * | 2014-09-18 | 2015-03-11 | 中国海洋大学 | Underwater acoustic glider |
| KR20170104193A (en) * | 2016-03-07 | 2017-09-15 | 한국기계연구원 | underwater radiated noise measuring device and establishment method for the same device |
| CN105738951A (en) * | 2016-05-06 | 2016-07-06 | 广州海洋地质调查局 | Multi-node OBS vertical cable earthquake collection system |
| JP2018040742A (en) * | 2016-09-09 | 2018-03-15 | 五洋建設株式会社 | Survey method of water bottom foundation |
| CN107592590A (en) * | 2017-08-10 | 2018-01-16 | 大连理工大学 | Sound pick up equipment is monitored in a kind of underwater sampling |
| CN208399704U (en) * | 2018-08-02 | 2019-01-18 | 国家海洋局第二海洋研究所 | A kind of hydrophone is in the quick connection of Kev drawstring and anticollision device, collision-prevention device |
Non-Patent Citations (2)
| Title |
|---|
| 中频同振柱型矢量水听器及其支撑结构设计;刘爽;蓝宇;李琪;;声学技术(第01期);80-83 * |
| 可刚性固定MEMS矢量水听器的设计;王续博;张国军;郭楠;郭静;张文栋;;微纳电子技术(第05期);310-345 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108680949A (en) | 2018-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6350085B1 (en) | Cable deployment system and method of using same | |
| US8381383B2 (en) | Method for installation of gravity installed anchor and mooring assembly | |
| US8282315B2 (en) | Method of installing an underwater riser | |
| CN112068141B (en) | Deep sea polymetallic nodule exploitation deposit environment monitoring device | |
| US9927263B2 (en) | Intrusion detection system for an undersea environment | |
| US20020166998A1 (en) | Fixed umbilical cable flotation docking head | |
| CN108680949B (en) | Quick connection and anti-collision device of hydrophone on Kevlar pull rope | |
| CN208399704U (en) | A kind of hydrophone is in the quick connection of Kev drawstring and anticollision device, collision-prevention device | |
| US20160138554A1 (en) | Power generating systems | |
| EP2757035A2 (en) | Tailbuoy stabilization device and method | |
| CN202853735U (en) | Acoustic array for large-scale ocean observation buoy | |
| CN105059501A (en) | Universal and external-overhead fusing type deep-sea single-cabin instrument retrieving and unhooking device | |
| EP3507625B1 (en) | High angle deployment system for a seismic marine surface vessel | |
| CN215622551U (en) | Underwater fixed-height towing device of metal detector | |
| CN113212693B (en) | Positioning communication system for underwater target | |
| CN110285911B (en) | Pressure monitoring device for underwater blasting | |
| US4892445A (en) | Man portable shallow water structure | |
| US20180222556A1 (en) | Line for a signal buoy and methods for submerged object retrieval and monitoring | |
| CN111626007A (en) | Umbilical cable dynamics model verification system | |
| US10042066B2 (en) | Method and device for passively and automatically winding seismic survey equipment cable | |
| RU157308U1 (en) | DEVICE FOR WORKING WITH BOTTOM GEOPHYSICAL STATIONS | |
| CN113978670B (en) | Magnetometer winding and unwinding device and method for underwater robot | |
| CN114895356A (en) | Seabed arrangement structure and method of fixed linear array | |
| RU2736248C2 (en) | Marine plant | |
| US8096256B2 (en) | Passively-actuated lanyard clamp |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Hangzhou City, Zhejiang province 310012 Xihu District Baochu Road No. 36 Applicant after: SECOND INSTITUTE OF OCEANOGRAPHY, MNR Address before: Hangzhou City, Zhejiang province 310012 Xihu District Baochu Road No. 36 Applicant before: THE SECOND INSTITUTE OF OCEANOGRAPHY, SOA |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |