CN113078604A - Device for preventing buried submarine cable from scouring - Google Patents
Device for preventing buried submarine cable from scouring Download PDFInfo
- Publication number
- CN113078604A CN113078604A CN202110383254.6A CN202110383254A CN113078604A CN 113078604 A CN113078604 A CN 113078604A CN 202110383254 A CN202110383254 A CN 202110383254A CN 113078604 A CN113078604 A CN 113078604A
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- Prior art keywords
- wall
- scouring
- submarine cable
- preventing
- fixedly connected
- 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
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- 238000009991 scouring Methods 0.000 title claims abstract description 38
- 230000001681 protective effect Effects 0.000 claims description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 14
- 241001330002 Bambuseae Species 0.000 claims description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 14
- 239000011425 bamboo Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 210000001260 vocal cord Anatomy 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 239000013535 sea water Substances 0.000 abstract description 7
- 241000251468 Actinopterygii Species 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000000872 buffer Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/24—Cable junctions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention belongs to the technical field of submarine cable engineering, and particularly relates to a device for preventing a buried submarine cable from being scoured. The invention utilizes the water flow in the ocean to drive the scouring roller to rotate, avoids the loosening of the joint caused by corrosion of the submarine cable joint under the frequent seawater scouring, and simultaneously utilizes the water flow in the ocean to drive the plectrum and the sound generating sheet to generate sound by contact, thereby manufacturing bass to expel fish and protect the submarine cable.
Description
Technical Field
The invention relates to the technical field of submarine cable engineering, in particular to a device for preventing a buried submarine cable from being washed away.
Background
Submarine cables are cables wrapped by insulating materials and are laid on the seabed and used for telecommunication transmission, the submarine cables are divided into submarine communication cables and submarine power cables, modern submarine cables all use optical fibers as materials and transmit telephone and internet signals, and the submarine cables have the advantages of being small in investment, high in construction speed, safe, stable, strong in anti-interference capability, good in confidentiality and the like.
When the submarine cable was arranged in the ocean, for the convenience of the transportation and the installation of submarine cable, its length is limited, and consequently the submarine cable can have joint department when the installation, because soak in the sea water for a long time, the joint is in long-term use, can take place to corrode ageing not hard up phenomenon, and this can lead to the whole work of carrying of submarine cable to be influenced.
Disclosure of Invention
The invention provides a device for preventing a buried submarine cable from being scoured, which is based on the fact that the submarine cable can have joints when being installed, and the joints can be corroded, aged and loosened in the long-term use process due to long-term immersion in seawater.
The device for preventing the buried submarine cable from being flushed comprises a protective cylinder, wherein a flushing roller is arranged outside the protective cylinder, a plurality of shifting pieces are fixedly connected to the inner wall of the flushing roller and distributed in an annular shape, two annular grooves are formed in the outer wall of the protective cylinder, soundboards are fixedly connected to the inner walls of the annular grooves, a plurality of sound generating pieces are fixedly connected to the outer walls of the soundboards and obliquely arranged on the surfaces of the soundboards, a plurality of circular pipelines are formed in the protective cylinder, sound amplifying ports are formed in the outer wall of the protective cylinder, water baffle plates are arranged in the sound amplifying ports, and the bottoms of the sound amplifying ports are communicated with the circular pipelines.
Preferably, a plurality of chutes are formed in the outer wall of the scouring drum, the inner walls of the chutes are fixedly connected with baffle plates, and the outer walls of the two sides of each baffle plate are provided with a plurality of guide grooves.
Preferably, two track grooves are formed in the outer wall of the protection barrel, the two track grooves are symmetrically distributed on the outer wall of the protection barrel, two annular slide rails are arranged on the inner wall of the scouring roller, and the protection barrel is movably connected with the scouring roller.
Preferably, the inside of the protection cylinder is provided with a submarine cable, one end of the protection cylinder is provided with a flange, and a fixing nut is arranged on the flange between the two protection cylinders.
Preferably, annular grooves are formed in the inner walls of the two sides of the protection barrel, and sealing gaskets are fixedly connected to the inner walls of the annular grooves.
Preferably, the bottom of a protection section of thick bamboo is provided with the bottom plate, and the below of bottom plate is provided with the base, and the circular port has been seted up to the upside outer wall of base, the inner wall fixedly connected with telescopic cylinder of circular port, the other end of telescopic cylinder and the downside outer wall fixed connection of bottom plate, and the fixed connection attenuator between bottom plate and the base.
Preferably, the outer wall of the bottom of the base is fixedly connected with two insertion rods, the two insertion rods are provided with fixing discs, and the fixing discs are inverted cones.
Preferably, square groove has been seted up to the upside outer wall of base, the inner wall fixedly connected with backing plate in square groove, and the upside outer wall of backing plate is provided with a plurality of anticollision archs, and the bellied material of anticollision is rubber.
The beneficial effects of the invention are as follows:
1. according to the fish school alarming device, the scouring drum rotates outside the protective drum in the scouring process of external seawater through the arranged protective drum, the plurality of shifting pieces continuously contact with the sounding pieces in the rotating process of the scouring drum along with the scouring drum, so that sound is generated, the sound is transmitted from the circular pipeline of the protective drum and is emitted outwards from the sound amplifying port to warn fish schools; the device utilizes the inside water of ocean to flow to drive and erodees the cylinder and rotate, avoids the submarine cable joint to be in and suffers the corruption under frequent sea water erodees, leads to the joint department to appear becoming flexible, utilizes simultaneously the inside water of ocean to flow between drive plectrum and the sound production piece contact sound production, makes the bass and plays the purpose of expelling shoal of fish protection submarine cable.
2. According to the invention, the resistance plate and the guide groove are arranged, so that the water body flow in the ocean is blocked by the resistance plate, and the kinetic energy in the water body flow is converted into the thrust of the resistance plate; the baffle plate can increase the contact area between the baffle plate and the water body, so that the kinetic energy of the water body can be converted more conveniently; the sealed setting of filling up can increase the leakproofness between submarine cable and the protection section of thick bamboo, avoids the sea water to get into the joint department that leads to the submarine cable and erodees, increases submarine cable's life.
3. According to the invention, the device is fixed at the bottom of the ocean through the bottom plate, the base, the telescopic cylinder and the damper, and in the using process, the whole device is driven to shake due to the rotation of the scouring roller, the damper buffers the influence of vibration, the fixing degree of the inserted rod and the bottom of the ocean caused by shaking is prevented from being reduced, and the stability of the device is improved; the fixed disk is the circular cone of inversion, can increase its area of contact with ocean bottom soil when the inserted bar is fixed in the ocean bottom, improves the stability when fixing, avoids taking place to become flexible.
4. According to the invention, by the arrangement of the backing plate and the anti-collision bulge, the shock absorption of the damper can be accompanied with partial deformation during the use of the device, when the vibration amplitude is overlarge, the possibility of contact and collision between the bottom plate and the base can exist, when the distance between the bottom plate and the base is reduced, the anti-collision bulge can contact with the bottom plate before the bottom plate, the rubber characteristic is utilized for buffering, the abrasion of the direct collision accelerating device of the bottom plate and the base is avoided, and the service life of the device is prolonged.
Drawings
Fig. 1 is a schematic overall structural diagram of a device for preventing a buried submarine cable from scouring according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of a device for preventing scouring of a buried submarine cable according to the present invention;
FIG. 3 is a schematic diagram of a disassembled structure of the device for preventing the scouring of the buried submarine cable according to the present invention;
FIG. 4 is a schematic view of a base structure of a device for preventing scouring of a buried submarine cable according to the present invention;
fig. 5 is a schematic diagram of a base split structure of a device for preventing scouring of a buried submarine cable according to embodiment 2 of the present invention.
In the figure: the anti-collision device comprises a protective cylinder 1, a scouring roller 2, a plectrum 3, a soundboard 4, a sounding sheet 5, a sound amplifying port 6, a baffle 7, a guide groove 8, a track groove 9, an outer protective sleeve 10, a submarine cable 11, a flange 12, a fixing nut 13, a sealing gasket 14, a bottom plate 15, a base 16, a telescopic cylinder 17, a damper 18, an inserted rod 19, a fixing disk 20, a base plate 21 and an anti-collision bulge 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1-4, a device for preventing buried depth submarine cable from scouring, including a protection section of thick bamboo 1, the outside of a protection section of thick bamboo 1 is provided with erodees cylinder 2, and the inner wall that erodes cylinder 2 has a plurality of plectrums 3 through bolted connection, a plurality of plectrums 3 are cyclic annular and distribute, two ring channels have been seted up to the outer wall of a protection section of thick bamboo 1, the inner wall of ring channel all has soundboard 4 through bolted connection, and the outer wall of soundboard 4 has a plurality of sound production pieces 5 through bolted connection, a plurality of sound production pieces 5 are the slope in the surface of soundboard 4 and place, a plurality of circular pipelines have been seted up to the inside of a protection section of thick bamboo 1, and the outer wall of a protection section of thick bamboo 1 has seted up public address mouth 6, the inside of public address.
According to the invention, the outer wall of the scouring roller 2 is provided with a plurality of chutes, the inner walls of the chutes are all connected with the baffle plate 7 through bolts, the outer walls of the two sides of the baffle plate 7 are both provided with a plurality of guide grooves 8, and the baffle plate 7 can increase the contact area with the water body, so that the kinetic energy of the water body can be converted more conveniently.
In the invention, the outer wall of the protection barrel 1 is provided with two rail grooves 9, the two rail grooves 9 are symmetrically distributed on the outer wall of the protection barrel 1, the inner wall of the scouring roller 2 is provided with two annular slide rails, and the protection barrel 1 is rotationally connected with the scouring roller 2.
In the invention, a submarine cable 11 is arranged inside the protective cylinders 1, a flange 12 is arranged at one end of each protective cylinder 1, and a fixing nut 13 is arranged on the flange 12 between the two protective cylinders 1.
According to the invention, the inner walls of the two sides of the protection barrel 1 are respectively provided with the annular groove, the inner walls of the annular grooves are connected with the sealing gasket 14 through the bolts, and the sealing gasket 14 is arranged to increase the sealing property between the submarine cable and the protection barrel 1, so that the corrosion of the joint of the submarine cable caused by seawater entering is avoided, and the service life of the submarine cable is prolonged.
According to the invention, the bottom plate 15 is arranged at the bottom of the protective cylinder 1, the base 16 is arranged below the bottom plate 15, the upper outer wall of the base 16 is provided with a circular hole, the inner wall of the circular hole is connected with the telescopic cylinder 17 through a bolt, the other end of the telescopic cylinder 17 is connected with the lower outer wall of the bottom plate 15 through a bolt, the bottom plate 15 and the base 16 are connected with the damper 18 through a bolt, the damper 18 can buffer the influence of vibration, the fixing degree of the inserted bar 19 and the ocean bottom is prevented from being reduced due to shaking, and the stability of the device is improved.
In the invention, the outer wall of the bottom of the base 16 is connected with two inserting rods 19 through bolts, the two inserting rods 19 are respectively provided with a fixed disc 20, the fixed disc 20 is in an inverted cone shape, and the fixed disc 20 is in an inverted cone shape, so that the contact area between the inserting rods 19 and the soil at the bottom of the ocean can be increased when the inserting rods 19 are fixed at the bottom of the ocean, the stability during fixing is improved, and looseness is avoided.
During the use, insert the inserted bar 19 in the soil of ocean bottom, the device is whole to be fixed in the ocean, after the installation, the inside water flow of ocean obtains blockking of resistance plate 7, kinetic energy in the water flow converts the thrust of resistance plate 7 into, wash out cylinder 2 and rotate in the outside of protection section of thick bamboo 1, a plurality of plectrums 3 are along with the rotation in-process that washes out cylinder 2, incessantly contact with sound production piece 5, thereby make sound, from the circular pipeline transmission of protection section of thick bamboo 1, outwards send from public address mouth 7, warn the shoal of fish, however in the use, because the rotation that washes out cylinder 2 can drive the device wholly rock, attenuator 18 buffering vibrations influence, avoid rocking and lead to the fixed degree reduction of inserted bar 19 and ocean bottom, improve the stability of device.
Example 2:
referring to fig. 5, a device for preventing buried depth submarine cable from scouring, this embodiment compares in embodiment 1, and square groove has been seted up to the upside outer wall that still includes base 16, and there is backing plate 21 inner wall in square groove through bolted connection, and the upside outer wall of backing plate 21 is provided with a plurality of anticollision archs 22, and anticollision archs 22's material is rubber
When the device is used, the inserting rod 19 is inserted into soil at the bottom of the ocean, the device is integrally fixed in the ocean, after the device is installed, the water body in the ocean flows to be blocked by the baffle plate 7, kinetic energy in the water body flow is converted into thrust of the baffle plate 7, the scouring drum 2 rotates outside the protection drum 1, the plurality of stirring sheets 3 are in continuous contact with the sounding sheets 5 in the rotating process along with the scouring drum 2, so that sound is produced, the sound is transmitted from the circular pipeline of the protection drum 1 and is emitted outwards from the sound amplifying port 7 to warn fish schools, however, in the using process, the rotating of the scouring drum 2 can drive the device to integrally shake, the damper 18 buffers the influence of vibration, the fixing degree of the inserting rod 19 and the bottom of the ocean is prevented from being reduced due to shaking, and the stability of the device is improved; when the distance between the bottom plate 15 and the base 16 is reduced, the anti-collision bulge 22 can contact with the bottom plate 15 earlier, the buffer effect is realized by utilizing the rubber characteristic, the abrasion of the direct collision accelerating device of the bottom plate 15 and the base 16 is avoided, and the service life of the device is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a device that prevents buried depth submarine cable erodees, includes a protection section of thick bamboo (1), its characterized in that, the outside of a protection section of thick bamboo (1) is provided with erodees cylinder (2), and erodees a plurality of plectrum (3) of inner wall fixedly connected with of cylinder (2), and a plurality of plectrum (3) are cyclic annular and distribute, two ring channels have been seted up to the outer wall of a protection section of thick bamboo (1), and the equal fixedly connected with soundboard (4) of inner wall of ring channel, and a plurality of vocal cords (5) of outer wall fixedly connected with of soundboard (4), a plurality of vocal cords (5) are the slope in the surface of soundboard (4) and place, a plurality of circular pipelines have been seted up to the inside of a protection section of thick bamboo (1), and the outer wall of a protection section of thick bamboo (1) has seted up public address mouth (6), and the inside of public address mouth (6).
2. The device for preventing the scouring of the buried submarine cable according to claim 1, wherein the outer wall of the scouring drum (2) is provided with a plurality of chutes, the inner walls of the chutes are fixedly connected with baffle plates (7), and the outer walls of two sides of the baffle plates (7) are provided with a plurality of guide grooves (8).
3. The device for preventing the scouring of the buried submarine cable according to claim 1, wherein the outer wall of the protecting cylinder (1) is provided with two track grooves (9), the two track grooves (9) are symmetrically distributed on the outer wall of the protecting cylinder (1), the inner wall of the scouring drum (2) is provided with two annular slide rails, and the protecting cylinder (1) is movably connected with the scouring drum (2).
4. The device for preventing the scouring of the buried submarine cable according to claim 1, wherein the submarine cable (11) is arranged inside the protection cylinders (1), one end of each protection cylinder (1) is provided with a flange (12), and a fixing nut (13) is arranged on the flange (12) between the two protection cylinders (1).
5. The device for preventing the scouring of the buried submarine cable according to claim 1, wherein the inner walls of the two sides of the protection cylinder (1) are provided with annular grooves, and the inner walls of the annular grooves are fixedly connected with sealing gaskets (14).
6. The device for preventing the scouring of the buried submarine cable according to claim 1, wherein a bottom plate (15) is arranged at the bottom of the protective cylinder (1), a base (16) is arranged below the bottom plate (15), a circular hole is formed in the outer wall of the upper side of the base (16), a telescopic cylinder (17) is fixedly connected to the inner wall of the circular hole, the other end of the telescopic cylinder (17) is fixedly connected with the outer wall of the lower side of the bottom plate (15), and a damper (18) is fixedly connected between the bottom plate (15) and the base (16).
7. The device for preventing the scouring of the buried submarine cable according to claim 6, wherein two insertion rods (19) are fixedly connected to the outer wall of the bottom of the base (16), and a fixed disc (20) is arranged on each of the two insertion rods (19).
8. Device for preventing scouring of buried sea cables according to claim 7, characterized in that the shape of the stationary disc (20) is an inverted cone.
9. The device for preventing the scouring of the buried submarine cable according to claim 6, wherein the outer wall of the upper side of the base (16) is provided with a square groove, and the inner wall of the square groove is fixedly connected with a backing plate (21).
10. The device for preventing the scouring of the buried submarine cable according to claim 9, wherein the outer wall of the upper side of the backing plate (21) is provided with a plurality of anti-collision protrusions (22), and the anti-collision protrusions (22) are made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110383254.6A CN113078604A (en) | 2021-04-09 | 2021-04-09 | Device for preventing buried submarine cable from scouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110383254.6A CN113078604A (en) | 2021-04-09 | 2021-04-09 | Device for preventing buried submarine cable from scouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113078604A true CN113078604A (en) | 2021-07-06 |
Family
ID=76615838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110383254.6A Pending CN113078604A (en) | 2021-04-09 | 2021-04-09 | Device for preventing buried submarine cable from scouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113078604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115833021A (en) * | 2023-02-24 | 2023-03-21 | 中国电建集团山东电力建设第一工程有限公司 | Submarine cable fixing device |
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| ES1059648U (en) * | 2005-02-11 | 2005-05-16 | Salvador Ponce Alcantara | Sonic barriers for different types of animals (Machine-translation by Google Translate, not legally binding) |
| CN202566103U (en) * | 2012-04-25 | 2012-12-05 | 浙江省海洋水产研究所 | Seabird expelling device of mariculture pond |
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| CN210987900U (en) * | 2019-09-26 | 2020-07-14 | 国家气候中心 | Bird pest analysis protection device is prevented to open-air transmission line laser based on ecological big data |
| CN211701420U (en) * | 2018-12-01 | 2020-10-16 | 曾培蓉 | Supporting device for cable tube |
| CN112400860A (en) * | 2020-10-26 | 2021-02-26 | 黄祥生 | Self-protection bird repeller based on wind power supply |
| CN112438248A (en) * | 2020-11-18 | 2021-03-05 | 周波 | Fishing ground protection equipment |
-
2021
- 2021-04-09 CN CN202110383254.6A patent/CN113078604A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1059648U (en) * | 2005-02-11 | 2005-05-16 | Salvador Ponce Alcantara | Sonic barriers for different types of animals (Machine-translation by Google Translate, not legally binding) |
| CN202566103U (en) * | 2012-04-25 | 2012-12-05 | 浙江省海洋水产研究所 | Seabird expelling device of mariculture pond |
| CN211701420U (en) * | 2018-12-01 | 2020-10-16 | 曾培蓉 | Supporting device for cable tube |
| CN210987900U (en) * | 2019-09-26 | 2020-07-14 | 国家气候中心 | Bird pest analysis protection device is prevented to open-air transmission line laser based on ecological big data |
| CN210326914U (en) * | 2019-10-25 | 2020-04-14 | 河北安电电力器材有限公司 | Insulating support device for electric power construction |
| CN112400860A (en) * | 2020-10-26 | 2021-02-26 | 黄祥生 | Self-protection bird repeller based on wind power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115833021A (en) * | 2023-02-24 | 2023-03-21 | 中国电建集团山东电力建设第一工程有限公司 | Submarine cable fixing device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210706 |
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| RJ01 | Rejection of invention patent application after publication |