CN218022095U - Remote control boat for rapidly arranging oil containment boom - Google Patents
Remote control boat for rapidly arranging oil containment boom Download PDFInfo
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- CN218022095U CN218022095U CN202222181884.8U CN202222181884U CN218022095U CN 218022095 U CN218022095 U CN 218022095U CN 202222181884 U CN202222181884 U CN 202222181884U CN 218022095 U CN218022095 U CN 218022095U
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- Prior art keywords
- containment boom
- oil containment
- controller
- remote control
- oil
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- 238000004804 winding Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 239000003305 oil spill Substances 0.000 description 12
- 239000007921 spray Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003924 oil dispersant Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Selective Calling Equipment (AREA)
Abstract
The utility model relates to a lay remote control ship of oil containment boom fast, include: the oil containment boom, the winding machine module and the remote control ship body; the winder module is connected with the oil containment boom; a ship motor and a controller I are arranged on the remote control hull; the ship motor and the controller I are electrically connected with the winder module and comprise a winding frame, an oil containment boom sliding rail, a compressed gas cylinder, a gas charging and sucking machine and a controller II; the controller I is electrically connected with the controller II; the winding frame, the oil fence sliding rail, the compressed gas cylinder, the gas charging and sucking machine and the respective controller II are respectively and electrically connected; one end of the gas charging and sucking machine is connected with the compressed gas cylinder; the oil containment boom is arranged on the winding frame; the winding frame and the oil containment boom sliding rail are fixed at the tail of the remote control ship body; the oil containment boom is wound on the winding frame and is connected with the air charging and sucking machine; the air charging and sucking machine and the winding frame are connected with the ship motor, and the equipment has the characteristics of safety, convenience, quick arrangement, strong practicability and the like.
Description
Technical Field
The utility model belongs to the technical field of the waters equipment of speedily carrying out rescue work, a lay remote control ship of oil containment boom fast is related to.
Background
The coastal region of China has more than 160 gulfs and several hundred kilometers deep water shorelines, and many shorelines are suitable for constructing ports and developing the ocean transportation industry, and the marine pollution management of China is implemented by the combined guidelines of prevention and control. The method takes the control of land-source pollution as the key point of marine environmental protection while well protecting marine biological resources and preventing marine pollution. As an important tool for preventing oil spill from diffusing and reducing the damage degree of the oil spill to the environment and the economy, the oil containment boom is not effectively improved in arrangement equipment and method for a long time, and the old method that the oil containment boom is connected through manpower and arranged through a tugboat is still adopted in many places.
As an important tool for preventing oil spill from diffusing and reducing the damage degree of the oil spill to the environment and the economy, the oil containment boom laying equipment and method are not effectively improved for a long time, and the old method that the oil containment boom is connected through manpower and is laid by a tugboat is still adopted in many places.
The oil containment boom with the function of rapid defense deployment exists in the prior art, equipment still needs to be assembled on a ship, oil containment operation cannot be performed in the first time in time, the optimal oil containment time can be delayed, oil stains are diffused, and good control performance is not achieved during deployment. When adopting the oil containment boom at present, generally there are two kinds of modes, one kind is preset in advance, but this kind can influence navigation to a certain extent, cause some potential danger's emergence, also can lead to the oil containment boom position to change when the wave is strong moreover, thereby can not reach fine effect, another kind is transported to the scene of an accident with devices such as ship oil containment boom, the operation finishes transports back again, but like this not only greatly increased oil containment boom's operating cost clearly, still can miss the oil containment boom best opportunity of decontaminating simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a the technical scheme who adopts the utility model is: a remotely controlled boat for quickly deploying an oil containment boom, comprising: the oil containment boom, the winding machine module and the remote control ship body;
the winder module is connected with the oil containment boom;
a ship motor and a controller I are arranged on the remote control hull;
the ship motor is electrically connected with the controller I
The winding machine module comprises a winding frame, an oil containment boom sliding rail, a compressed gas cylinder, a gas charging and sucking machine and a controller II;
the controller I is electrically connected with the controller II;
the winding frame, the oil fence sliding rail, the compressed gas cylinder, the gas charging and sucking machine and the respective controller II are respectively and electrically connected;
one end of the gas charging and sucking machine is connected with the compressed gas cylinder;
the oil containment boom is arranged on the winding frame;
the winding frame and the oil containment boom sliding rail are fixed at the tail of the remote control ship body;
the oil containment boom is wound on the winding frame and is connected with the air charging and sucking machine;
the air charging and sucking machine and the winding frame are connected with the ship motor.
Further, the method comprises the following steps: the oil containment boom adopts a solid floater type oil containment boom.
Further: still include the camera, the camera with controller I is connected, the model that the camera adopted: viewerse/VES-YL5904/H.
Further, the method comprises the following steps: the system is characterized by further comprising a water quality sensor, wherein the water quality sensor is connected with the controller I, and the type of the water quality sensor is cloud transmission Internet of things AMT-W400.
Further: and the controller I adopts an STM32 singlechip.
Further, the method comprises the following steps: the controller II adopts a model of JF24D-TX/RX2.4G.
The utility model provides a pair of lay remote control ship of oil containment boom fast, the invention uses 2.4G bi-motor remote control ship as the carrier, borrows for reference large-scale oil containment boom winder module and full-electric type oil containment boom laying device, can carry out oil containment boom remote control laying work in the offshore oil spill accident, this equipment has safe facility, lay rapidly, characteristics such as practicality is strong, compare in the tradition adopt the manpower to connect the oil containment boom, carry out the old method of laying by the tow boat, this scheme has obvious cost advantage and practical value.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic view of a remotely controlled boat for quickly deploying a containment boom;
fig. 2 is a schematic view of a winder module.
Reference numerals are as follows: 1-a winding frame, 2-a ship motor, 3-a spray nozzle, 4-a camera, 5-a water quality sensor, 6-a liquid storage tank, 7-a compressed gas cylinder, 8-a ship electric conversion device, 9-an inflation and suction machine, 10-an oil containment boom slide rail, 11-a transmission gear, 12-a drum framework, 13-a drum main body, 14-a ship electric converter, 15-a ship electric interface, 16, a support, 17-an oil containment boom, 18-a controller I, 19-a controller II,20, a gas delivery pipeline, 100-a winding machine module and 200-a remote control ship body.
Detailed Description
It should be noted that, in the case of conflict, the embodiments and features of the embodiments may be combined with each other, and the present invention will be described in detail with reference to the accompanying drawings in combination with the embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus that are known by one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
FIG. 1 is a schematic illustration of a remotely controlled boat for quickly deploying an oil containment boom;
a remotely controlled boat for quickly deploying an oil containment boom, comprising: an oil containment boom 17, a winder module 100, and a remotely controlled hull 200;
the winder module 100 is connected with the oil containment boom 17;
the remote control hull is provided with a ship motor 2 and a controller I18; the ship motor 2 is electrically connected with the controller I18;
the winder module 100 comprises a winding frame 1, an oil containment boom sliding rail 10, a compressed gas cylinder 7, a gas charging and sucking machine 9 and a controller II19;
the controller I18 is connected with the controller II19; remote control is realized on the arrangement and the recovery of the oil containment boom 17;
the air inflating and sucking machine 9 is used as an independent system and is connected with the air inlet and outlet holes of the oil containment boom 17 to inflate and suck the oil containment boom 17.
The winding frame 1, the oil containment boom sliding rail 10, the compressed gas cylinder 7, the gas charging and sucking machine and the respective controllers II are respectively connected;
one end of the gas charging and sucking machine 9 is connected with the compressed gas cylinder 7; the other end of the air inflating and sucking machine 9 is connected with the oil containment boom 17;
the oil containment boom 17 is arranged on the winding frame 1;
the winding frame 1 and the oil containment boom sliding rail 10 are fixed at the tail of the remote control hull 200;
the oil containment boom 17 is wound on the winding frame 1 and is connected with the air charging and sucking machine 9;
the remote control hull 200 is also provided with hydraulic motors which are connected with stern propellers;
the air inflation and suction machine 17 and the winding frame 1 are connected with a ship motor 2.
The ship motor 2 adopts a multi-purpose motor, the multi-purpose motor provides driving force for the hydraulic motor and the air inflation and suction machine 9 while providing navigation power for the remote control ship body, the air inflation and suction machine 9 inflates or sucks air for the oil containment boom 17,
the hydraulic motor drives the winding frame 1 to lay or recover the oil containment boom 17 on the winding frame 1, other power supply facilities do not need to be additionally arranged on a transport tool, and the overall space of the laying device is saved.
Further: in consideration of the size and flexibility of the remote control ship body 200, the oil containment boom 17 is a solid float type oil containment boom, and the oil containment boom has the advantages of being high in strength, high in stable oil retention rate, long in service life and the like. The solid float type oil containment boom adopts a vent chamber structure, and the adjacent air chambers are connected through the arc-shaped air paths, so that the operation of the adjacent air chambers is not influenced under the condition of damage of the air chambers, the fault tolerance of the oil containment boom is greatly improved, and the cost is reduced. When the floating body is damaged or insufficient in gas, the gas can be supplied by the gas cylinder carried by the oil containment boom 17, so that the oil containment boom can continuously work, and the purpose of quickly and efficiently distributing the oil containment boom 17 on an oil spill site is achieved. During the drawing back, the aspirator 9 sucks out the stored air in the boom and the uninflated part is automatically folded and stored on the winder module for the next use.
In order to more efficiently find the water area polluted by the spilled oil, a camera 4 and a water quality sensor 5 are installed, and the scene environment condition is remotely transmitted through the camera 4, so that the judgment of personnel operating the remote control boat is facilitated;
and a water quality sensor 5 is used for setting data such as water quality data, underwater foreign matters, flow velocity and the like transmitted back by a route in water, and a pollution source is locked.
The camera 4 is connected with the controller I18. The model of camera 4 adoption: viewer Werse/VES-YL5904/H.
The water quality sensor 5 is connected with the controller I18. The model adopted by the water quality sensor is cloud transmission Internet of things AMT-W400.
Further, the method comprises the following steps: and the controller I18 adopts an STM32 singlechip.
Further, the method comprises the following steps: the model adopted by the controller II19 is JF24D-TX/RX2.4G. The water quality sensor 5 and the camera 4 have online monitoring and real-time monitoring functions, and can be fixed at the corresponding position of the remote control ship body 200 as independent accessories or realize real-time information updating on an STM singlechip by python programming;
further, a spraying device is further arranged on the remote control ship body 200, and the spraying device comprises a spray head 3 and a liquid storage cabin 6.
The spray head 3 is connected with a liquid storage cabin 6 through a pipeline; the control of the controller I18, when the oil containment boom is arranged or recovered, compared with a conventional spray head, the spray head 3 adopts a high-low pressure automatic switching type spray head, and the requirements of different spraying areas with far and near ranges are met through automatic switching of high pressure and low pressure; the spray head has the advantages of low required working pressure, low requirements on liquid pressure and performance, and simple and convenient installation mode.
HR-02 oil eliminating agent is stored in the liquid storage tank 6, and the HR-02 oil eliminating agent is compounded with surfactant, oil eliminating assistant, etc. and can emulsify oil floated on water surface or oil stain fast and disperse in water without coagulation. Reduce the tension of oil-water interface, emulsify and dissolve the oil spill quickly, and is convenient to use, non-flammable, non-explosive, non-corrosive and non-toxic, and belongs to an environment-friendly product.
The sprayed HR-02 oil eliminating agent and QWM-L oil condensing agent are hydrophilic groups, so that the respiration of aquatic life is not affected, and the harm to aquatic life is greatly reduced. The pulsed shower nozzle can realize the all-round and diversified organic combination of injection direction, and realize automatic control coordination on this basis, and this shower nozzle can be according to the oil spilling condition of difference, different injection mode and injection direction are selected to different oil spilling position, carry on it at remote control ship part, and utilize the control core of singlechip, realize the remote control to sprinkler, use sprinkler to arrange the oil boom and put the oil dispersant or the oil condensate that equipment carried and spray at the assigned position, provide effective guarantee for the earlier stage treatment of oil spilling accident.
Figure 2 is a schematic view of a winding machine,
the winding machine module further comprises a transmission gear 11, a winding drum framework 12, a winding drum main body 13, a ship electric converter 14 and a ship electric interface 15;
the transmission gear 11 is connected with the reel framework 12, the reel framework 12 supports the reel body 13, and the transmission gear 11 rotates to drive the reel framework 12 and the reel body 12 to rotate;
the ship electric converter 14 is connected with the ship electric interface 15, the ship electric interface 15 is connected with the ship motor 2, and the ship electric converter 14 supplies power to the winder module 100;
the bottom of the reel body support 16 is fixed on the remote control hull 200, and the top supports the reel framework 12;
the oil containment boom slide rail 10 is connected with the main body bracket 16 and extends to the outer side of the stern to play a role in guiding the oil containment boom 17 during recovery and release;
the gas charging and sucking port of the gas charging and sucking machine 9 is connected with a gas conveying pipeline, and the gas conveying pipeline is connected with the compressed gas cylinder 7;
the compressed gas cylinder 7 is in fact inside the remotely controlled hull 200;
the oil containment boom main distribution equipment of the winder module 100 is arranged at the tail of the remote control ship and has the functions of automatically releasing and recovering the oil containment boom.
The ship motor 2 supplies power to the main distribution equipment through the ship electric interface 15 and the ship electric converter 14, the winding drum main body 13 can be controlled to rotate forwards and backwards after being electrified so as to realize distribution and recovery of the oil containment boom 17, the oil containment boom 17 is regulated by the oil containment boom sliding rail 10, air charging and sucking are realized when passing through an air charging and sucking port, and gas is supplied by the compressed gas cylinder 7 and is conveyed through a gas conveying pipeline;
the ship motor 2 supplies power to other devices through the ship power conversion device 8, the oil containment boom winding frame 1 stores the oil containment boom 17, the oil containment boom is distributed and recovered through the oil containment boom sliding rail 10, and in the process, the compressed gas cylinder 7 inflates and sucks gas in the oil containment boom 17 through the inflation and suction machine 9. The power supply provided by the ship motor directly supplies power to other electronic equipment on the ship, which can cause equipment failure, and the ship electric conversion device 8 can avoid the phenomenon.
After discovering the oil spill condition, control personnel long-range start remote control ship and go to the oil spill place, the equipment reversal of laying is put at this in-process, oil containment 17 is discharged to the surface of water, it aerifys the oil containment to fill the breathing machine, oil containment 17 directly floats in the surface of water after aerifing, arrive and carry out the analysis to the site conditions through camera 4 and water quality sensor 5 after the oil spill place, control remote control ship and drag the oil containment and carry out the enclosure control operation, after enclosing the oil spill, visible situation uses high-low pressure conversion shower nozzle 3 to spray oil coagulant or oil dissolving agent to the oil spill.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a remote control ship of oil containment boom is laid fast which characterized in that: the method comprises the following steps: the device comprises an oil containment boom, a winding machine module and a remote control ship body;
the winder module is connected with the oil containment boom;
a ship motor and a controller I are arranged on the remote control ship body;
the ship motor is electrically connected with the controller I
The winding machine module comprises a winding frame, an oil containment boom sliding rail, a compressed gas cylinder, a gas charging and sucking machine and a controller II;
the controller I is electrically connected with the controller II;
the winding frame, the oil fence sliding rail, the compressed gas cylinder, the gas charging and sucking machine and the respective controller II are respectively and electrically connected;
one end of the gas charging and sucking machine is connected with the compressed gas cylinder;
the oil containment boom is arranged on the winding frame;
the winding frame and the oil containment boom sliding rail are fixed at the tail of the remote control ship body;
the oil containment boom is wound on the winding frame and is connected with the air charging and sucking machine;
the air charging and sucking machine and the winding frame are connected with the ship motor.
2. The remote control boat for quickly arranging the oil containment boom according to claim 1, wherein: the oil containment boom adopts a solid floater type oil containment boom.
3. The remote control boat for quickly arranging the oil containment boom according to claim 1, wherein: still include the camera, the camera with controller I is connected, the model that the camera adopted: viewer Werse/VES-YL5904/H.
4. The remote control boat for rapidly deploying the oil containment boom of claim 1, wherein: the system is characterized by further comprising a water quality sensor, wherein the water quality sensor is connected with the controller I, and the water quality sensor adopts a cloud transmission Internet of things AMT-W400 model.
5. The remote control boat for quickly arranging the oil containment boom according to claim 1, wherein: and the controller I adopts an STM32 singlechip.
6. The remote control boat for rapidly deploying the oil containment boom of claim 1, wherein: the controller II adopts a model of JF24D-TX/RX2.4G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222181884.8U CN218022095U (en) | 2022-08-18 | 2022-08-18 | Remote control boat for rapidly arranging oil containment boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222181884.8U CN218022095U (en) | 2022-08-18 | 2022-08-18 | Remote control boat for rapidly arranging oil containment boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218022095U true CN218022095U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222181884.8U Expired - Fee Related CN218022095U (en) | 2022-08-18 | 2022-08-18 | Remote control boat for rapidly arranging oil containment boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218022095U (en) |
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2022
- 2022-08-18 CN CN202222181884.8U patent/CN218022095U/en not_active Expired - Fee Related
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Granted publication date: 20221213 |