CN117956249A - Ship movement video monitoring device - Google Patents
Ship movement video monitoring device Download PDFInfo
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- CN117956249A CN117956249A CN202410336080.1A CN202410336080A CN117956249A CN 117956249 A CN117956249 A CN 117956249A CN 202410336080 A CN202410336080 A CN 202410336080A CN 117956249 A CN117956249 A CN 117956249A
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- sliding
- sliding plate
- groove
- monitoring device
- video monitoring
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 230000000670 limiting effect Effects 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000003860 storage Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000013535 sea water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention belongs to the technical field of ship moving videos, and particularly relates to a ship moving video monitoring device which comprises a monitor and an annular rail, wherein a limiting groove is formed in the lower side of a sliding groove, a driving mechanism matched with a sliding plate is arranged on the annular rail, two pressing mechanisms comprise two rolling limiting assemblies, a sliding piece is arranged in the sliding groove in a sliding mode, the sliding piece is rotatably provided with limiting wheels which can be abutted against the inner walls of the limiting grooves, the sliding plate is provided with an unlocking mechanism matched with the four rolling limiting assemblies, one side of a mounting plate is provided with a power wire, and an adaptive storage mechanism matched with the power wire is arranged in the mounting plate.
Description
Technical Field
The invention belongs to the technical field of ship movement videos, and particularly relates to a ship movement video monitoring device.
Background
In order to ensure the safety of the production activity process, corresponding camera monitoring devices are arranged in the ship navigation process so that a shipman can judge the state and the running condition of the surrounding water area, and the vision definition of the ship navigation is effectively improved by utilizing a monitoring mode of a laser camera along with the development of a monitoring technology, and compared with the traditional camera monitoring instrument, the camera monitoring device has the advantages of wider monitoring coverage, smaller light influence and the like;
In order to increase the monitoring area, the periphery of the ship can be monitored, so that a movable track can be arranged for monitoring equipment, but at present, in order to ensure that the monitoring equipment can move in the movable track and simultaneously can keep supplying power, a power strip can be arranged in the movable track, and the power receiving end of the monitoring equipment is always in contact with the power strip when moving.
Disclosure of Invention
The purpose of the invention is that: the ship mobile video monitoring device is used for solving the problems existing in the background technology.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
The utility model provides a boats and ships remove video monitoring device, including watch-dog and annular rail, annular rail upside surface is equipped with the spout, the spout downside is equipped with the spacing groove, the watch-dog downside is equipped with the sliding plate with the spout, annular rail is equipped with sliding plate assorted actuating mechanism, the left and right sides of sliding plate all is equipped with the roof pressure mechanism, two roof pressure mechanisms are all including two roll spacing subassemblies, roll spacing subassembly including establishing the recess at the sliding plate tip, the sliding part is equipped with in the recess, be equipped with in the recess with slider assorted resilience member, the slider rotates and is equipped with the spacing wheel that can with spacing inslot wall butt, the sliding plate is equipped with four roll spacing subassembly assorted release mechanism, annular rail one side middle part is equipped with the mounting panel, mounting panel one side is equipped with the power cord, be equipped with in the mounting panel with power cord assorted self-adaptation receiving mechanism.
The driving mechanism comprises a sliding groove arranged in the middle of the inner wall of the lower side of the limiting groove, a rack is arranged in the sliding groove in a sliding mode, a plurality of clamping teeth meshed with the rack are arranged on the lower surface of the sliding plate, a cavity is arranged in the center of the mounting plate, a gear meshed with the rack is rotationally arranged in the cavity, and a motor connected with gear transmission is arranged on the outer side of the mounting plate.
The rebound member comprises two inner cavities arranged on the upper side and the lower side of the groove, first springs are respectively arranged in the two inner cavities, a sliding block is arranged on one side of the first springs, which is close to the sliding piece, connecting rods extending out of the inner cavities in a sliding mode are fixedly connected with the two sliding blocks, and the two connecting rods are connected with the sliding piece.
The unlocking mechanism comprises a rotating cavity arranged in the sliding plate, a rotating shaft is assembled in the rotating cavity in a rotating mode, through holes communicated with the rotating cavity are formed in the inner walls of the four grooves, pull ropes are arranged on the four sliding pieces, the four pull ropes penetrate through the four through holes respectively and are fixedly connected with the rotating shaft, one end of the rotating shaft extends out of the sliding plate to be provided with a handle, and a positioning assembly matched with the rotating shaft is arranged in the sliding plate.
The positioning assembly comprises a fixed cavity communicated with the rotating cavity, a limiting gear connected with the rotating shaft is arranged in the fixed cavity, two telescopic rods are arranged on the inner wall of one side of the fixed cavity, a second spring is sleeved on the outer surfaces of the two telescopic rods, clamping pieces meshed with the limiting gear are jointly arranged at the end parts of the two telescopic rods, through grooves communicated with the fixed cavity are formed in the outer surfaces of the sliding pieces, and pulling pieces extending out of the through grooves are arranged on the clamping pieces.
The self-adaptation receiving mechanism is established the chamber of accomodating in the mounting panel, is equipped with the chamber that resets in accomodating chamber one side inner wall, accomodates the intracavity internal rotation and is assembled with accomodates the axle, accomodates axle one end and stretches into the chamber that resets and be equipped with the coil spring, and power cord one end is connected with accomodating the axle surface, accomodates the chamber and be equipped with the hole that stretches out with external intercommunication, and power cord one end passes to stretch out the hole and is equipped with the connector of being connected with the sliding plate.
The four corners of the lower surface of the sliding plate are respectively provided with a roller.
The side wall of the limit groove is provided with a plurality of drain holes.
The invention has simple structure and ingenious design, the steps of installing the monitor in the annular track are simple, convenient and quick, and the monitor is also simple and quick to take off from the annular track, so that the whole design can improve the rapidity of installing and detaching the monitor, and the whole equipment is not afraid of seawater entering the annular track and has no risk of electric leakage.
Drawings
The invention may be further illustrated by means of non-limiting examples given in the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the assembled structure of the monitor and the sliding plate of the present invention;
FIG. 3 is a schematic view of another assembled structure of the monitor and slide plate of the present invention;
FIG. 4 is a schematic cross-sectional view of a sliding plate according to the present invention;
FIG. 5 is an enlarged schematic view of the structure shown at A in FIG. 4;
FIG. 6 is a schematic diagram showing a cross-sectional structure of a sliding plate according to the present invention;
FIG. 7 is a schematic cross-sectional view of a sliding plate according to the present invention;
fig. 8 is a schematic cross-sectional view of the circular track of the present invention.
The main reference numerals are as follows:
Monitor 1, endless track 11, slide groove 12, limit groove 13, slide plate 14, groove 2, slide piece 21, limit wheel 22, mounting plate 23, power cord 24, slide groove 3, rack 31, latch 311, cavity 32, gear 33, motor 34, inner cavity 35, first spring 36, slider 37, connecting rod 38, rotating cavity 4, rotating shaft 41, through hole 42, pull cord 43, handle 44, fixed cavity 5, limit gear 51, telescopic rod 52, second spring 53, clip piece 54, through groove 55, pulling piece 56, storage cavity 6, reset cavity 61, storage shaft 62, coil spring 63, extension hole 64, connector 65, roller 66, drain hole 67.
Detailed Description
In order that those skilled in the art will better understand the present invention, the following technical scheme of the present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-8, the ship moving video monitoring device comprises a monitor 1 and an annular rail 11, wherein a chute 12 is arranged on the upper side surface of the annular rail 11, a limit groove 13 is arranged on the lower side of the chute 12, a sliding plate 14 matched with the chute 12 is arranged on the lower side of the monitor 1, a driving mechanism matched with the sliding plate 14 is arranged on the annular rail 11, a pressing mechanism is arranged on the left side and the right side of the sliding plate 14, two pressing mechanisms comprise two rolling limit assemblies, each rolling limit assembly comprises a groove 2 arranged at the end part of the sliding plate 14, a sliding piece 21 is arranged in the groove 2 in a sliding manner, a rebound member matched with the sliding piece 21 is arranged in the groove 2, a limit wheel 22 capable of being abutted against the inner wall of the limit groove 13 is rotatably arranged on the sliding piece 21, an unlocking mechanism matched with the four rolling limit assemblies is arranged on the sliding plate 14, a mounting plate 23 is arranged in the middle of one side of the annular rail 11, a power line 24 is arranged on one side of the mounting plate 23, and a self-adaptive storage mechanism matched with the power line 24 is arranged in the mounting plate 23.
The annular rail 11 can be arranged around the ship by a worker, the mounting plate 23 is arranged in the ship room, when the monitor 1 is required to be arranged in the annular rail 11, the worker can start to work through the unlocking mechanism to drive the four sliding pieces 21 to simultaneously retract into the groove 2, the rebound member is in a compressed state at the moment, thereby the four limiting wheels 22 are completely retracted into the groove 2, at the moment, the worker can directly put the sliding plate 14 into the sliding groove 12 directly, when the upper end surface of the sliding plate 14 is leveled with the upper surface of the annular rail 11, the work of the unlocking mechanism is canceled, thus the pulling of the four sliding pieces 21 is canceled, at the moment, the sliding pieces 21 are pushed out of the groove 2 through the extension of the rebound member, the limiting wheels 22 are driven to extend out of the groove 2 until the limiting wheels 22 are tightly abutted against the inner wall of the limiting groove 13, at the moment, the upper sides of the limiting wheels 22 are contacted with the inner wall of the limiting groove 13, and thus the sliding plate 14 can be clamped into the limiting groove 13 through the four limiting wheels 22, the limiting effect on the sliding plate 14 is achieved, when the sliding plate 14 is required to be taken out from the limiting groove 13, the four sliding pieces 21 can be directly retracted into the annular rail 11 from the annular rail 11 through the four sliding pieces 21, and the annular rail 11 can be completely retracted into the annular rail 11 through the four limiting wheels 21, and the annular rail 11 can be completely and completely retracted from the annular rail 11;
At this time, the sliding plate 14 is driven by the driving mechanism to move in the limiting groove 13, the effect of driving the monitor 1 to move is achieved, meanwhile, power is supplied to the monitor 1 through the power line 24, under the effect of the self-adaptive mechanism, when the monitor 1 moves far away from the mounting plate 23 side, the self-adaptive mechanism pays out the power line 24, when the monitor 1 moves from the power line 24 side to the mounting plate 23 side, the self-adaptive mechanism automatically stores the power line 24, and therefore the movement of the sliding plate 14 is prevented from being influenced by the redundant power line 24 in the annular track 11, the power is supplied to the monitor 1 through the power line 24, and the monitor 1 can be effectively supplied with power under the waterproof effect.
The driving mechanism comprises a sliding groove 3 arranged in the middle of the inner wall of the lower side of the limiting groove 13, a rack 31 is arranged in the sliding groove 3 in a sliding mode, a plurality of clamping teeth 311 meshed with the rack 31 are arranged on the lower surface of the sliding plate 14, a cavity 32 is arranged in the center of the mounting plate 23, a gear 33 meshed with the rack 31 is arranged in the cavity 32 in a rotating mode, and a motor 34 in transmission connection with the gear 33 is arranged on the outer side of the mounting plate 23.
When the sliding plate 14 is installed in the limiting groove 13, the plurality of latches 311 are engaged with the rack 31, and at this time, under the operation of the motor 34, the gear 33 can be driven to rotate, and as the gear 33 is engaged with the rack 31, the rack 31 can be driven to move in the sliding groove 3, and the rack 31 can drive the sliding plate 14 to move in the annular track 1.
The rebound member comprises two inner cavities 35 arranged on the upper side and the lower side of the groove 2, first springs 36 are respectively arranged in the two inner cavities 35, a sliding block 37 is arranged on one side, close to the sliding piece 21, of the first springs 36, connecting rods 38 extending out of the inner cavities 35 in a sliding mode are fixedly connected with the two sliding blocks 37, and the two connecting rods 38 are connected with the sliding piece 21.
When the sliding piece 21 moves in the groove 2, the sliding piece 21 drives the sliding block 37 to move in the inner cavity 35 through the connecting rod 38, the first spring 36 can be driven to compress, and when the sliding piece 21 needs to move out of the groove 2, the sliding piece 21 can move out of the groove 2 under the action of the stretching of the first spring 36.
The unlocking mechanism comprises a rotating cavity 4 arranged in a sliding plate 14, a rotating shaft 41 is rotatably assembled in the rotating cavity 4, through holes 42 communicated with the rotating cavity 4 are formed in the inner walls of four grooves 2, pull ropes 43 are arranged on four sliding pieces 21, the four pull ropes 42 respectively penetrate through the four through holes 42 and are fixedly connected with the rotating shaft 41, one end of the rotating shaft 41 extends out of the sliding plate 21 and is provided with a handle 44, and a positioning assembly matched with the rotating shaft 41 is arranged in the sliding plate 14.
When the sliding piece 21 needs to be retracted into the groove 2, the positioning of the rotating shaft 41 can be canceled through the positioning component, at the moment, the worker rotates the handle 44, the handle 44 drives the rotating shaft 41 to start rotating, the rotating shaft 41 can wind the four pull ropes 43, the four pull ropes 43 can retract the four sliding pieces 21 into the groove 2, the positioning component can limit the rotating shaft 41 to prevent the rotating shaft 41 from rotating, and the four sliding pieces 21 can be pulled into the groove 2 all the time through the design.
The positioning assembly comprises a fixed cavity 5 communicated with a rotating cavity 4, a limit gear 51 connected with a rotating shaft 41 is arranged in the fixed cavity 5, two telescopic rods 52 are arranged on the inner wall of one side of the fixed cavity 5, second springs 53 are sleeved on the outer surfaces of the two telescopic rods 52, clamping pieces 54 meshed with the limit gear 51 are arranged at the end parts of the two telescopic rods 52 together, a through groove 55 communicated with the fixed cavity 5 is formed in the outer surface of a sliding piece 21, and a pulling piece 56 extending out of the through groove 55 is arranged on the clamping pieces 54.
Under the action of the second spring 53 stretching, the clamping piece 54 can be driven to be meshed with the limiting gear 51, and the limiting gear 51 is connected with the rotating shaft 41, so that the rotating shaft 41 can be prevented from rotating, when the limiting of the rotating shaft 41 is required to be canceled, the sliding pulling piece 56 can move in the through groove 55, so that the clamping piece 54 can be driven to move far away from the limiting gear 51 until the clamping piece 54 is disengaged from the limiting gear 51, limiting of the rotating shaft 41 can be canceled, and at the moment, the pulling rope 43 can be pulled under the action of a rebounding member of the rotating shaft 41 to drive the rotating shaft 41 to reset and rotate.
The self-adaptation receiving mechanism establishes the chamber 6 of accomodating in mounting panel 23, is equipped with the chamber that resets 61 in accomodating chamber 6 one side inner wall, accomodates chamber 6 internal rotation and is equipped with accomodates axle 62, accomodates axle 62 one end and stretches into reset 61 and be equipped with coil spring 63, and power cord 24 one end is connected with accomodating axle 62 surface, accomodates chamber 6 and is equipped with the hole 64 that stretches out with external intercommunication, and power cord 24 one end is passed and is stretched out hole 64 and is equipped with the connector 65 of being connected with sliding plate 14.
When the sliding plate 14 slides from the side of the power line 24 away from the side of the mounting plate 23, the power line 24 can be driven to be pulled out of the storage cavity 6 and the storage shaft 62 is driven to rotate, the storage shaft 62 can drive the coil spring 63 to start compressing, and when the sliding plate 14 moves from the side of the power line 24 to the side of the mounting plate 23, the storage shaft 62 is driven to reset and rotate under the action of the coil spring 63, the power line 24 is wound, and the power line 24 is retracted into the storage cavity 6.
The lower surface four corners of the slide plate 14 are fitted with rollers 66. The roller 66 is designed to reduce friction of the sliding plate 14 against the inner wall of the limiting groove 13.
The side wall of the limit groove 13 is provided with a plurality of drain holes 67. The design of the drain hole 67 can discharge the seawater entering the limiting groove 13 outwards, so as to prevent the seawater from accumulating in the limiting groove 13.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (8)
1. The utility model provides a boats and ships remove video monitoring device, includes watch-dog and annular track, its characterized in that: the utility model provides a power cord self-adaptation storage mechanism, including the annular rail, the annular rail upside surface is equipped with the spout, the spout downside is equipped with the spacing groove, the monitor downside is equipped with the sliding plate with the spout, the annular rail is equipped with sliding plate assorted actuating mechanism, the left and right sides of sliding plate all is equipped with pushing mechanism, two pushing mechanism are all including two roll spacing subassemblies, roll spacing subassembly including establishing the recess at the sliding plate tip, the slip is equipped with the slider in the recess, be equipped with in the recess with slider assorted resilience member, the slider rotates and is equipped with the spacing wheel that can with spacing inslot wall butt, the sliding plate is equipped with the release mechanism with four roll spacing subassembly assorted, annular rail one side middle part is equipped with the mounting panel, mounting panel one side is equipped with the power cord, be equipped with in the mounting panel with power cord assorted self-adaptation storage mechanism.
2. The ship movement video monitoring device according to claim 1, wherein: the driving mechanism comprises a sliding groove arranged in the middle of the inner wall of the lower side of the limiting groove, a rack is arranged in the sliding groove in a sliding mode, a plurality of clamping teeth meshed with the rack are arranged on the lower surface of the sliding plate, a cavity is arranged in the center of the mounting plate, a gear meshed with the rack is rotationally arranged in the cavity, and a motor connected with gear transmission is arranged on the outer side of the mounting plate.
3. A ship movement video monitoring device according to claim 2, characterized in that: the rebound member comprises two inner cavities arranged on the upper side and the lower side of the groove, first springs are respectively arranged in the two inner cavities, a sliding block is arranged on one side of the first springs, which is close to the sliding piece, connecting rods extending out of the inner cavities in a sliding mode are fixedly connected with the two sliding blocks, and the two connecting rods are connected with the sliding piece.
4. The ship movement video monitoring device according to claim 1, wherein: the unlocking mechanism comprises a rotating cavity arranged in the sliding plate, a rotating shaft is assembled in the rotating cavity in a rotating mode, through holes communicated with the rotating cavity are formed in the inner walls of the four grooves, pull ropes are arranged on the four sliding pieces, the four pull ropes penetrate through the four through holes respectively and are fixedly connected with the rotating shaft, one end of the rotating shaft extends out of the sliding plate to be provided with a handle, and a positioning assembly matched with the rotating shaft is arranged in the sliding plate.
5. The ship moving video monitoring device according to claim 4, wherein: the positioning assembly comprises a fixed cavity communicated with the rotating cavity, a limiting gear connected with the rotating shaft is arranged in the fixed cavity, two telescopic rods are arranged on the inner wall of one side of the fixed cavity, a second spring is sleeved on the outer surfaces of the two telescopic rods, clamping pieces meshed with the limiting gear are jointly arranged at the end parts of the two telescopic rods, through grooves communicated with the fixed cavity are formed in the outer surfaces of the sliding pieces, and pulling pieces extending out of the through grooves are arranged on the clamping pieces.
6. The ship movement video monitoring device according to claim 1, wherein: the self-adaptation receiving mechanism is established the chamber of accomodating in the mounting panel, is equipped with the chamber that resets in accomodating chamber one side inner wall, accomodates the intracavity internal rotation and is assembled with accomodates the axle, accomodates axle one end and stretches into the chamber that resets and be equipped with the coil spring, and power cord one end is connected with accomodating the axle surface, accomodates the chamber and be equipped with the hole that stretches out with external intercommunication, and power cord one end passes to stretch out the hole and is equipped with the connector of being connected with the sliding plate.
7. The ship movement video monitoring device according to claim 1, wherein: the four corners of the lower surface of the sliding plate are respectively provided with a roller.
8. The ship movement video monitoring device according to claim 1, wherein: the side wall of the limit groove is provided with a plurality of drain holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410336080.1A CN117956249A (en) | 2024-03-22 | 2024-03-22 | Ship movement video monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410336080.1A CN117956249A (en) | 2024-03-22 | 2024-03-22 | Ship movement video monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117956249A true CN117956249A (en) | 2024-04-30 |
Family
ID=90792965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410336080.1A Pending CN117956249A (en) | 2024-03-22 | 2024-03-22 | Ship movement video monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN117956249A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210761174U (en) * | 2019-09-29 | 2020-06-16 | 大连海洋大学 | Anchoring system equipment for offshore positioning |
| CN212478939U (en) * | 2020-04-28 | 2021-02-05 | 重庆坚宜佳建筑装饰工程有限公司 | Aluminum alloy door and window convenient to dismouting window form |
| CN113489951A (en) * | 2021-06-25 | 2021-10-08 | 南京盛航海运股份有限公司 | Ship mobile video monitoring device |
| CN219036085U (en) * | 2022-12-20 | 2023-05-16 | 长春职业技术学院 | Stop motion animation auxiliary shooting device |
| CN219623766U (en) * | 2023-05-09 | 2023-09-01 | 广西和顺水运集团股份有限公司 | Water transportation safety monitoring device |
| CN219906598U (en) * | 2023-02-13 | 2023-10-27 | 梁敏仪 | Telescopic monitor cable receiver |
| CN117496843A (en) * | 2023-03-01 | 2024-02-02 | 重庆工业职业技术学院 | Outdoor advertising equipment |
-
2024
- 2024-03-22 CN CN202410336080.1A patent/CN117956249A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210761174U (en) * | 2019-09-29 | 2020-06-16 | 大连海洋大学 | Anchoring system equipment for offshore positioning |
| CN212478939U (en) * | 2020-04-28 | 2021-02-05 | 重庆坚宜佳建筑装饰工程有限公司 | Aluminum alloy door and window convenient to dismouting window form |
| CN113489951A (en) * | 2021-06-25 | 2021-10-08 | 南京盛航海运股份有限公司 | Ship mobile video monitoring device |
| CN219036085U (en) * | 2022-12-20 | 2023-05-16 | 长春职业技术学院 | Stop motion animation auxiliary shooting device |
| CN219906598U (en) * | 2023-02-13 | 2023-10-27 | 梁敏仪 | Telescopic monitor cable receiver |
| CN117496843A (en) * | 2023-03-01 | 2024-02-02 | 重庆工业职业技术学院 | Outdoor advertising equipment |
| CN219623766U (en) * | 2023-05-09 | 2023-09-01 | 广西和顺水运集团股份有限公司 | Water transportation safety monitoring device |
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