CN115848603B - Submarine fisher for marine geological survey - Google Patents
Submarine fisher for marine geological survey Download PDFInfo
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- CN115848603B CN115848603B CN202310141414.5A CN202310141414A CN115848603B CN 115848603 B CN115848603 B CN 115848603B CN 202310141414 A CN202310141414 A CN 202310141414A CN 115848603 B CN115848603 B CN 115848603B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention relates to the technical field of submarine salvage, in particular to a submarine salvage device for marine geological survey, which comprises a mounting plate, wherein a limiting opening is formed in the outer wall of the mounting plate, a mounting cylinder is arranged in the limiting opening, a side plate is arranged on the outer wall of the periphery of the mounting cylinder, an annular groove is formed in the inner wall of the limiting opening, the side plate is arranged in the annular groove, through holes which are distributed in an annular mode at equal distances are formed in the outer wall of the mounting plate, movable columns are movably arranged in the through holes, one ends of the movable columns are provided with stop blocks, the other ends of the movable columns are provided with supporting plates, a plurality of conical spines are arranged on the outer wall of each supporting plate, a balancing weight is arranged on the outer wall of each movable column, a fixing frame is arranged on the outer wall of the mounting plate, and a lifting rope is arranged on the outer wall of each fixing frame. The invention can make the pick-up cover rotate to the sand in the sea floor in a circumference way, is more convenient to drag up the sand, can maintain the balance of the internal pressure and the external pressure of the mounting cylinder, and is safer to use.
Description
Technical Field
The invention relates to the technical field of submarine salvage, in particular to a submarine salvage device for marine geological survey.
Background
Ocean engineering geological survey refers to geological survey for ocean engineering construction purposes, physical and mechanical properties, material composition, distribution of underwater landslide and the like of underwater sediments are comprehensively analyzed mainly through means of mass geophysical prospecting, water drilling, submarine sampling, in-situ testing and the like, reliable geological data are provided for selection of construction sites and structural design of buildings, so that ocean engineering safety is ensured, and salvaging of substances such as sand and gravel on the seabed is usually carried out by using a salvaging device in the survey process.
At present, the existing submarine fisher still has certain defects, in the use process, due to the fact that seawater is in certain fluidity, the salvaging claw is difficult to insert into sand and salvage sand, meanwhile, when the fisher sinks to a deeper water area, the ordinary fisher is difficult to bear the water pressure of the sea bottom, the use effect is poor, and therefore, the design of the submarine fisher for marine geological survey is needed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a submarine fisher for marine geological survey.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a marine geology surveys and uses seabed fisher, includes the mounting panel, the spacing mouth has been seted up to the outer wall of mounting panel, and is provided with the installation section of thick bamboo in the spacing mouth, the outer wall all around of installation section of thick bamboo is provided with the curb plate, the inner wall of spacing mouth is provided with the annular groove, and the curb plate sets up in the annular groove, the equidistance is annular distribution's through-hole has been seted up to the outer wall of mounting panel, and the activity is provided with the movable column in the through-hole, the one end of movable column is provided with the dog, and the other end of movable column is provided with the backup pad, the outer wall of backup pad is provided with a plurality of awl thorns, the outer wall of movable column is provided with the balancing weight, the outer wall of mounting panel is provided with the mount, and the outer wall of mount is provided with the lifting rope, the both sides outer wall of installation section of thick bamboo all is provided with the piston section of thick bamboo, and is provided with the piston rod in the piston section of thick bamboo, the tip of thick bamboo is provided with the pick-up cover, the both sides outer wall of installation section of thick bamboo all is provided with the immersible pump, the drain end connection has the transfer line, and the one end and piston section of thick bamboo is linked together, the inner wall of thick bamboo is provided with the diaphragm, and the outer wall of diaphragm runs through the fixed and is provided with the backup pad, the sealing washer is provided with the sealing groove and the inner wall between the annular distribution, the inner wall is provided with the clearance groove, and the sealing groove is set up between the end of the clearance, the sealing groove is set up between the end of the wall, the clearance, and the end of the sealing groove is set up between the end of the wall and the wall, and the end of the wall.
The rotating mechanism is arranged on the mounting cylinder and used for driving the mounting cylinder to rotate;
the pressure stabilizing mechanism is arranged in the mounting cylinder and used for stabilizing the air pressure in the mounting cylinder;
and the pressure measuring mechanism is arranged in the mounting cylinder and is used for detecting the pressure of the seawater on the surface of the transparent plate.
As still further aspects of the invention: the rotary mechanism comprises a liquid pump arranged on the inner walls of two sides of the mounting cylinder, a liquid guide pipe is arranged at the liquid guide end of the liquid pump, a liquid discharge cover is arranged at the end part of the liquid guide pipe, the liquid discharge covers are symmetrically distributed around the central axis of the mounting cylinder, the liquid discharge covers positioned on the two sides are opposite in direction, and a liquid suction pipe is arranged at the liquid suction end of the liquid pump.
As still further aspects of the invention: the end of the liquid suction pipe is provided with a ring cover, the inner wall of the ring cover is provided with a filter screen, the inner wall of the fixing frame is provided with a connecting rod, the end of the connecting rod is provided with a scraping plate, and the scraping plate is attached to the outer wall of the filter screen.
As still further aspects of the invention: the lateral wall, roof and diapire of curb plate all are provided with the gyro wheel, and the outer wall of gyro wheel contacts with the inner wall of annular.
As still further aspects of the invention: the pressure stabilizing mechanism comprises an air pump and an air storage tank which are arranged in the installation cylinder, an air guide pipe is arranged at the air guide end of the air pump, one end of the air guide pipe is communicated with the air storage tank, an air outlet pipe is communicated with the end part of the air storage tank, and a control valve is arranged on the outer wall of the air outlet pipe.
As still further aspects of the invention: the air pump, the control valve, the liquid pump, the camera, the searchlight and the submersible pump are all connected with a switch through wires, and the switch is electrically connected with a controller.
As still further aspects of the invention: the pressure measuring mechanism comprises a mounting frame arranged on the inner wall of one side of the mounting cylinder, the mounting frame is U-shaped, a movable rod is arranged on the inner wall of the movable plate and penetrates through the mounting frame, a pressure sensor is arranged at the end part of the movable rod, and the pressure sensor is electrically connected with the controller.
Compared with the prior art, the invention has the beneficial effects that:
according to the submarine fisher for marine geological survey, the fisher can be lowered to a water area needing to be detected through the lifting rope, the searchlight can be used for performing searchlight on the seabed, the monitoring picture can be transmitted to receiving equipment on the sea surface in real time through the camera, a worker can conveniently move the pickup cover to the position above the position needing to be salvaged through the lifting rope, then the lifting rope is continuously lowered, when the fisher is sunk to the water bottom, the cone thorn on the outer wall of the supporting plate can be inserted into the seabed firstly under the gravity action of the balancing weight, then the mounting plate can be moved downwards under the gravity action of the mounting cylinder along with the lowering of the lifting rope until the pickup cover is in contact with the seabed, at this time, the mounting cylinder can be driven to rotate through the rotating mechanism, the pickup cover can be immersed into sand on the seabed, then seawater can be guided into the piston cylinder through the submersible pump, the pickup cover at the end of the piston rod can be driven to move until the pickup cover is combined, then the sand can be collected into the pickup cover, and the fixing frame is lifted to the water surface through the lifting rope, salvage on the seabed, the sand can be conveniently salvaged, and the sand can be mounted in a balanced manner by the pressure stabilizing mechanism and the pressure stabilizing mechanism can be further maintained in the process.
Drawings
FIG. 1 is a schematic cross-sectional view of a subsea latch jack for marine geological survey according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;
FIG. 3 is a schematic diagram of a pressure measuring mechanism of a subsea latch jack for marine geological survey according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a rotation mechanism of a subsea latch jack for marine geological survey according to an embodiment of the present invention;
fig. 5 is a schematic view of a mounting plate structure of a subsea latch jack for marine geological survey according to an embodiment of the present invention.
In the figure: 1-mounting plate, 2-ring groove, 3-side plate, 4-mounting cylinder, 5-fixing frame, 6-lifting rope, 7-air pump, 8-air duct, 9-air storage tank, 10-roller, 11-rotating mechanism, 12-stop, 13-movable column, 14-pressure stabilizing mechanism, 15-balancing weight, 16-air outlet pipe, 17-control valve, 18-supporting plate, 19-cone, 20-mounting port, 21-movable plate, 22-sealing waterproof film, 23-fixed port, 24-transparent plate, 25-sealing ring, 26-pressure measuring mechanism, 27-mounting frame, 28-movable rod, 29-pressure sensor, 30-liquid pump, 31-liquid guiding tube, 32-liquid discharging cover, 33-liquid extracting tube, 34-ring cover, 35-filter screen, 36-connecting rod, 37-scraper, 38-transverse plate, 39-camera, 40-searchlight, 41-transfusion tube, 42-piston rod, 43-submersible pump, 44-piston cylinder, 45-pickup cover.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1, 2 and 5, a submarine latch jack for marine geological survey according to an embodiment of the present invention includes a mounting plate 1, a limiting opening is provided on an outer wall of the mounting plate 1, a mounting cylinder 4 is provided in the limiting opening, a side plate 3 is provided on a peripheral outer wall of the mounting cylinder 4, a ring groove 2 is provided on an inner wall of the limiting opening, the side plate 3 is provided in the ring groove 2, through holes distributed in an annular shape are provided on an outer wall of the mounting plate 1 equidistantly, a movable column 13 is movably provided in the through holes, a stopper 12 is provided at one end of the movable column 13, a supporting plate 18 is provided at the other end of the movable column 13, a plurality of spikes 19 are provided on an outer wall of the supporting plate 18, a balancing weight 15 is provided on an outer wall of the movable column 13, a fixing frame 5 is provided on an outer wall of the mounting plate 5, a lifting rope 6 is provided on an outer wall of both sides of the mounting cylinder 4, a piston cylinder 44 is provided on an outer wall of both sides of the mounting cylinder 4, the piston cylinder 44 is provided with a piston rod 42, the end part of the piston rod 42 is provided with a pickup cover 45, the outer walls of the two sides of the mounting cylinder 4 are respectively provided with a submersible pump 43, the liquid guide end of the submersible pump 43 is connected with a liquid delivery pipe 41, one end of the liquid delivery pipe 41 is communicated with the piston cylinder 44, the inner wall of the mounting cylinder 4 is provided with a transverse plate 38, the outer wall of the transverse plate 38 is fixedly provided with a camera 39 in a penetrating manner, the outer wall of the transverse plate 38 is provided with searchlight 40 distributed in an annular shape at equal distance, the end part of the mounting cylinder 4 is provided with a mounting opening 20, the inner wall of the mounting opening 20 is provided with a movable plate 21, the outer wall of the movable plate 21 is provided with a fixing opening 23, the peripheral inner wall of the fixing opening 23 is provided with a limiting groove, the limiting groove is provided with a transparent plate 24, the specific material of the transparent plate 24 is not limited, in the embodiment, preferably, the transparent plate 24 adopts a toughened glass plate, and gap department between spacing groove and the transparent plate 24 is provided with sealing washer 25, is provided with sealed waterproof membrane 22 between the lateral wall of fly leaf 21 and the tip of installation section of thick bamboo 4, still includes:
the rotating mechanism 11 is arranged on the mounting cylinder 4 and is used for driving the mounting cylinder 4 to rotate;
a pressure stabilizing mechanism 14, the pressure stabilizing mechanism 14 being arranged in the installation cylinder 4 for stabilizing the air pressure in the installation cylinder 4;
the pressure measuring mechanism 26, the pressure measuring mechanism 26 is arranged in the mounting cylinder 4, and is used for detecting the pressure of the seawater on the surface of the transparent plate 24.
Can drop the fisher to the waters that need to survey through lifting rope 6, can carry out the searchlight to the seabed through searchlight 40, can be with the receiving equipment transmission of monitoring picture to the sea through camera 39, make things convenient for the staff to move pickup cover 45 to the position top that needs to salvage through lifting rope 6, then continue to drop lifting rope 6, when the fisher sinks to the bottom, can make earlier the awl thorn 19 of backup pad 18 outer wall insert the seabed under the action of the gravity of balancing weight 15, then along with the continuation of lifting rope 6, can make mounting panel 1 down move under the action of the gravity of mounting cylinder 4, until pickup cover 45 contacts with the seabed, at this moment, can drive mounting cylinder 4 through rotary mechanism 11 and rotate, make pickup cover 45 be circular motion, can make pickup cover 45 submerge in the seabed, then can be led into piston cylinder 44 through immersible pump 43, drive pickup cover 45 of piston rod 42 tip and remove, alright collect the grit to pickup cover 45, then promote 5 to the surface of water through lifting rope 6, can realize to the side of the sea and can be very convenient for use in the pressure-stabilizing mechanism and the pressure-stabilizing device, and the pressure-stabilizing mechanism is kept in the process of the pressure-stabilizing 14.
As an embodiment of the present invention, referring to fig. 4, the rotation mechanism 11 includes a liquid pump 30 disposed on inner walls of two sides of the installation cylinder 4, a liquid guide tube 31 is disposed at a liquid guide end of the liquid pump 30, liquid discharge covers 32 are disposed at ends of the liquid guide tube 31, the liquid discharge covers 32 are symmetrically distributed around a central axis of the installation cylinder 4, and liquid suction pipes 33 are disposed at liquid suction ends of the liquid pump 30, seawater outside the installation cylinder 4 can be pumped into the liquid pump 30 through the liquid suction pipes 33 on the liquid pump 30, and then discharged along the liquid discharge covers 32 at ends of the liquid guide tube 31, and the liquid discharge covers 32 at two sides face opposite to each other, so that the installation cylinder 4 can be driven to rotate, thereby achieving better use effect.
As an embodiment of the present invention, referring to fig. 4, an end of the liquid suction tube 33 is provided with a ring cover 34, an inner wall of the ring cover 34 is provided with a filter screen 35, an inner wall of the fixing frame 5 is provided with a connecting rod 36, an end of the connecting rod 36 is provided with a scraper 37, the scraper 37 is attached to an outer wall of the filter screen 35, impurities can be blocked by the filter screen 35 in the ring cover 34, the liquid suction tube 33 is prevented from being blocked by the impurities, meanwhile, when the mounting cylinder 4 rotates, the scraper 37 can move on the surface of the filter screen 35 to scrape the impurities on the surface of the filter screen 35, water inlet smoothness is ensured, and the use effect is better.
As an embodiment of the present invention, referring to fig. 1, the side wall, the top wall and the bottom wall of the side plate 3 are all provided with the roller 10, and the outer wall of the roller 10 contacts with the inner wall of the ring groove 2, and the roller 10 can assist the side plate 3 to move in the ring groove 2, so that the smoothness of the installation cylinder 4 during rotation can be effectively improved, and the use effect is better.
As an embodiment of the present invention, referring to fig. 1, the pressure stabilizing mechanism 14 includes an air pump 7 and an air storage tank 9 disposed in the mounting cylinder 4, an air guide pipe 8 is disposed at an air guide end of the air pump 7, one end of the air guide pipe 8 is communicated with the air storage tank 9, an air outlet pipe 16 is disposed at an end of the air storage tank 9, a control valve 17 is disposed on an outer wall of the air outlet pipe 16, the water pressure borne by the transparent plate 24 is increased continuously along with continuous sinking of the fisher, at this time, the air in the air storage tank 9 can be released into the mounting cylinder 4 by opening the control valve 17, so that the internal and external pressure of the mounting cylinder 4 is balanced, the situation that the transparent plate 24 is broken can be effectively avoided, the use process is safer, the control valve 17 can be closed when the fisher ascends, and then the air is redirected into the air storage tank 9 by the air pump 7, so that the internal and external pressure of the mounting cylinder 4 can be stabilized when the fisher ascends, and the use effect is better.
As an embodiment of the present invention, the air pump 7, the control valve 17, the liquid pump 30, the camera 39, the searchlight 40 and the submersible pump 43 are all connected with a switch through wires, and the switch is electrically connected with a controller, and the specific structure of the controller is not limited, in this embodiment, preferably, the controller is a micro-program controller.
As an embodiment of the present invention, referring to fig. 2 and 3, the pressure measuring mechanism 26 includes a mounting frame 27 disposed on an inner wall of one side of the mounting cylinder 4, the mounting frame 27 is U-shaped, the inner wall of the movable plate 21 is provided with a movable rod 28, the movable rod 28 penetrates through the mounting frame 27, the end of the movable rod 28 is provided with a pressure sensor 29, and the pressure sensor 29 is electrically connected with the controller, when the transparent plate 24 bears pressure, the movable rod 28 on the inner wall of the movable plate 21 is driven to move, the pressure sensor 29 on the end of the movable rod 28 contacts with the inner wall of the mounting frame 27, and the pressure value measured by the pressure sensor 29 is stabilized in a proper range by the pressure stabilizing mechanism 14, so that the purpose of stabilizing the pressure can be achieved.
During the use, can descend the fisher to the waters that need survey through lifting rope 6, can carry out the searchlight to the seabed through searchlight 40, can be in real time with the receiving arrangement transmission of monitoring picture to the sea surface through camera 39, make things convenient for the staff to move pickup cover 45 to the position top that needs to salvage through lifting rope 6, then continue to descend lifting rope 6, when the fisher sinks to the bottom, can make earlier the awl thorn 19 of backup pad 18 outer wall insert the seabed under the action of the gravity of balancing weight 15, then along with the continuation of lifting rope 6 descends, can make mounting panel 1 down under the action of gravity of mounting cylinder 4, until pickup cover 45 and seabed contact, at this moment, can drive mounting cylinder 4 through rotary mechanism 11 and rotate for pickup cover 45 is circular motion, can make pickup cover 45 submerge in the grit of seabed, then can be through immersible pump 43 with the sea water leading into piston cylinder 44, drive pickup cover 45 of piston rod 42 tip and remove, alright collect to pickup cover 45, then through lifting rope 6 with 5 to the jack-up, can be with the realization of the sand and stone, can be kept in the balanced and the pressure-stabilizing mechanism is convenient in the process of the use of the pressure-stabilizing device to the sea bottom 14.
It should be noted that, although the present disclosure describes embodiments, not every embodiment includes only a single embodiment, and the description is for clarity only, and those skilled in the art should understand that the embodiments of the disclosure may be combined appropriately to form other embodiments that can be understood by those skilled in the art.
Claims (3)
1. The utility model provides a marine geology surveys and uses seabed fisher, includes the mounting panel, its characterized in that, the limit mouth has been seted up to the outer wall of mounting panel, and is provided with the installation section of thick bamboo in the limit mouth, the outer wall all around of installation section of thick bamboo is provided with the curb plate, the inner wall of limit mouth is provided with the annular groove, and the curb plate sets up in the annular groove, the equidistance is the through-hole that annular distributes is seted up to the outer wall of mounting panel, and the activity is provided with the movable column in the through-hole, the one end of movable column is provided with the dog, and the other end of movable column is provided with the backup pad, the outer wall of backup pad is provided with a plurality of awl thorns, the outer wall of movable column is provided with the balancing weight, the outer wall of mounting panel is provided with the mount, and the outer wall of mount is provided with the lifting rope, the both sides outer wall of installation section of thick bamboo all is provided with the piston tube, and is provided with the piston rod in the piston tube, the tip of piston rod is provided with the pick-up cover, the both sides outer wall of installation section of thick bamboo all is provided with the transfer line, and the piston tube is linked together, the inner wall of installation section of thick bamboo is provided with the diaphragm, and the outer wall of thick bamboo outer wall of movable column runs through the fixed device and is provided with the backup pad, the annular groove is provided with the sealing washer and sets up groove between the seal groove, the inner wall of the limit mouth, the clearance is set up groove is set up and the inner wall between the seal groove, and the seal groove is set up in the clearance between the inner wall of the seal mouth, and the seal mouth is set up between the seal groove.
The rotating mechanism is arranged on the mounting cylinder and used for driving the mounting cylinder to rotate, the rotating mechanism comprises liquid pumps arranged on the inner walls of the two sides of the mounting cylinder, liquid guide ends of the liquid pumps are provided with liquid guide pipes, the end parts of the liquid guide pipes are provided with liquid discharge covers, the liquid discharge covers are symmetrically distributed around the central axis of the mounting cylinder, the liquid discharge covers on the two sides are opposite in direction, liquid suction ends of the liquid pumps are provided with liquid suction pipes, the end parts of the liquid suction pipes are provided with ring covers, the inner walls of the ring covers are provided with filter screens, the inner walls of the fixing frames are provided with connecting rods, the end parts of the connecting rods are provided with scraping plates, and the scraping plates are attached to the outer walls of the filter screens;
the pressure stabilizing mechanism is arranged in the mounting cylinder and used for stabilizing the air pressure in the mounting cylinder, the pressure stabilizing mechanism comprises an air pump and an air storage tank which are arranged in the mounting cylinder, an air guide pipe is arranged at the air guide end of the air pump, one end of the air guide pipe is communicated with the air storage tank, an air outlet pipe is communicated with the end part of the air storage tank, and a control valve is arranged on the outer wall of the air outlet pipe;
the pressure measuring mechanism is arranged in the mounting cylinder and used for detecting the pressure of seawater on the surface of the transparent plate, the pressure measuring mechanism comprises a mounting frame arranged on the inner wall of one side of the mounting cylinder, the mounting frame is U-shaped, the inner wall of the movable plate is provided with a movable rod, the movable rod penetrates through the mounting frame, and the end part of the movable rod is provided with a pressure sensor which is electrically connected with the controller.
2. The marine fisher of claim 1, wherein the side walls, top wall and bottom wall of the side plate are provided with rollers, and the outer walls of the rollers are in contact with the inner walls of the ring grooves.
3. The subsea fisher for marine geology survey of claim 1, wherein the air pump, control valve, liquid pump, camera, searchlight and submersible pump are all connected with a switch by wires, and the switch is electrically connected with a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310141414.5A CN115848603B (en) | 2023-02-21 | 2023-02-21 | Submarine fisher for marine geological survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310141414.5A CN115848603B (en) | 2023-02-21 | 2023-02-21 | Submarine fisher for marine geological survey |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115848603A CN115848603A (en) | 2023-03-28 |
| CN115848603B true CN115848603B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310141414.5A Active CN115848603B (en) | 2023-02-21 | 2023-02-21 | Submarine fisher for marine geological survey |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB357744A (en) * | 1930-09-01 | 1931-10-01 | Luigi Cavallari | Improvements in salvage devices for submarines and the like |
| JP5571020B2 (en) * | 2011-03-15 | 2014-08-13 | 株式会社神戸製鋼所 | Lifting container and lifting method |
| CN108909993A (en) * | 2018-06-27 | 2018-11-30 | 深圳市中科金朗产业研究院有限公司 | A kind of unmanned submarines and cabin pressure adjusting method |
| CN210633692U (en) * | 2019-06-27 | 2020-05-29 | 天津大沽海河客运有限公司 | Underwater pipeline fishing mechanism |
| CN113171281B (en) * | 2021-03-05 | 2023-10-31 | 闽江学院 | Angle-adjustable sciatic nerve massage chair |
| CN216386365U (en) * | 2021-09-30 | 2022-04-26 | 冯文静 | Sampling device suitable for ocean engineering |
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2023
- 2023-02-21 CN CN202310141414.5A patent/CN115848603B/en active Active
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