CN217547015U - Unrestrained box with a net of anti-wind under water - Google Patents
Unrestrained box with a net of anti-wind under water Download PDFInfo
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- CN217547015U CN217547015U CN202121252117.0U CN202121252117U CN217547015U CN 217547015 U CN217547015 U CN 217547015U CN 202121252117 U CN202121252117 U CN 202121252117U CN 217547015 U CN217547015 U CN 217547015U
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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 application provides unrestrained box with a net of anti-wind under water, include: the floating frame system comprises a main floating pipeline and a plurality of connecting plates, each connecting plate comprises at least one main floating pipe hole, a cable rope hole and an anchor rope hole, and the main floating pipeline is arranged in the at least one main floating pipe hole; the counterweight system comprises a counterweight frame, and the counterweight frame is connected to the cable holes on the connecting plates of the floating frame system; the connecting piece comprises a cable, and the cable is fixed between the floating frame system and the counterweight frame; the netting system comprises a netting which surrounds the space inside the net cage and is connected and fixed with the connecting piece; the mooring system comprises at least four groups of anchor ropes, each group of anchor ropes comprises a first anchor rope and a second anchor rope, one end of the first anchor rope and one end of the second anchor rope are connected with the same anchor point, the other end of the first anchor rope is connected with an anchor rope hole of a connecting plate of the floating frame system, and the other end of the second anchor rope is connected with the counterweight system. The technical scheme of this application has solved the unrestrained poor and netting deformation of deep sea box with a net of anti-wind and the problem of displacement.
Description
Technical Field
The application relates to the technical field of underwater cage culture, in particular to an underwater anti-wave cage.
Background
The mariculture has the remarkable characteristics of high investment and high risk, but is gradually widely applied to large-scale culture activities due to the advantages of high efficiency and high return. The deepwater net cage technology is rapidly developed in nearly two-thirty years, and is particularly widely applied to coastal zones of the east and south of China. The risk of deep-water cage culture mainly comes from loss caused by large-scale stormy waves.
The deep water net cages applied in China at present can be divided into floating type, submerged type and lifting type according to the states of the deep water net cages in water; the construction mode of the net cage body can be divided into gravity type, anchoring tension type, self-tension type or self-supporting net cages. Various net cages are applied in different areas of China, but all the net cages have the problem of insufficient wind wave resistance, so that the net cages are only suitable for sea areas with smaller wind waves in application. The mariculture is mostly concentrated in a harbor water area near the shore and a semi-enclosed bay, and the water quality is poor due to less exchange because the water body is kept still; the limited area also forces farmers to increase the breeding density, on one hand, the water quality deterioration is accelerated, and on the other hand, the product quality and efficiency are also influenced. With the development of marine product industry in recent years, offshore areas have been unable to meet the development needs of mariculture industry.
The marine fishery is an important component of marine economy, and deep sea cage culture is an important development direction. At present, although the net cages can be produced in China mainly and are already industrialized, most of the net cages have the problems of poor wind and wave resistance, small breeding spring layer, harsh conditions of a breeding sea area and the like. The research on the novel deep-sea net cage which has strong wind and wave resistance, wide applicable sea area, large breeding spring layer and simple operation and low cost has important significance, and the sustainable healthy development capability of deep-sea net cage breeding can be greatly improved.
The mariculture industry expands to open sea and deep water areas, and the wind and wave resistance of the net cage and the deformation and displacement of the netting are important problems to be solved for the first time.
The statements in this background section merely represent techniques known to the public and are not, of course, representative of the prior art.
SUMMERY OF THE UTILITY MODEL
The application aims at providing an unrestrained box with a net of anti-wind under water, can realize that simple structure, simple to operate, cost are reasonable, and have stronger unrestrained ability of anti-wind, under certain unrestrained condition, can effectively produce deformation through self flexible construction homeopathic, reduce the direct stress of unrestrained box with a net of anti-wind to and can retrain the deformation and the displacement of etting, thereby effectively resist unrestrained impact damage of wind.
According to an aspect of the application, provide a unrestrained box with a net of anti-wind under water, include: the floating frame system comprises a main floating pipeline and a plurality of connecting plates, the main floating pipeline is provided with a suspension structure, each connecting plate comprises at least one main floating pipe hole, a cable hole and an anchor rope hole, the main floating pipeline is arranged in the at least one main floating pipe hole, and the connecting plates are fixed on the periphery of the main floating pipeline; the counterweight system comprises a counterweight frame, and the counterweight frame is connected to cable holes on a plurality of connecting plates of the floating frame system; the connecting piece comprises a cable, one end of the cable is fixed in a cable hole of the connecting plate, the other end of the cable is fixed in the counterweight frame, and the connecting piece is connected between the floating frame system and the counterweight system; the netting system comprises a netting and a main floating pipeline, wherein the netting surrounds the space inside the net cage, the suspension structure of the main floating pipeline is connected to one side of the netting so as to fix the netting system, and the netting is connected and fixed with the connecting piece; the anchoring system comprises at least four groups of anchor ropes which are uniformly distributed around the net cage, each group of anchor ropes comprises a first anchor rope and a second anchor rope, one ends of the first anchor rope and the second anchor rope are connected with the same anchor point, the other end of the first anchor rope is connected with an anchor rope hole of a connecting plate of the floating frame system, and the other end of the second anchor rope is connected with the counterweight system.
According to some embodiments, the main floating pipeline comprises an air bin and a water bin, the air bin and the water bin are equally divided into a plurality of sections of chambers which are not communicated with each other, and the main floating pipeline is formed into a closed pipeline by at least one main floating pipe.
According to some embodiments, the connector comprises a flexible connection structure and a rigid connection structure.
According to some embodiments, the float frame system further comprises: the guardrail pipe forms a closed guardrail pipeline, the guardrail pipeline is located at the periphery of the main floating pipeline, and the connecting piece is fixedly connected between the main floating pipe and the guardrail pipe.
According to some embodiments, the sump of the floating frame system comprises: the gas port is used for air intake and exhaust, and the water gap is used for water intake and drainage.
According to some embodiments, the air port of the water bin of the main floating pipeline is provided with an air nozzle connected with an air inlet and exhaust valve.
According to some embodiments, a manual aeration valve is arranged on the air chamber of the main floating pipeline.
According to some embodiments, the floating frame system further comprises: the flange is used for connecting the gas bin and the water bin, and the connecting plates are respectively fixed at the flange.
According to some embodiments, a reinforcing element is provided between the pontoon system and the counterweight system, and is connected to the connecting element, and the mooring system further comprises a third anchor line connected to the reinforcing element, and one end of the third anchor line, the first anchor line and the second anchor line are connected to the same anchor point.
According to some embodiments, the mooring system further comprises a third mooring line connected to the connecting element, one end of the third mooring line, the first mooring line and the second mooring line being connected to the same anchor point.
According to some embodiments, the floating frame system is circular, square or regular polygon, and the counterweight frame is circular, square or regular polygon, and is connected with the floating frame system to form a three-dimensional space.
According to some embodiments, the counterweight system further comprises: and the bottom counterweight is connected below the counterweight frame.
Based on foretell unrestrained box with a net of anti-wind under water, the floating frame system of box with a net intensity is high, and gentle elasticity is good, and is longe-lived. The water valve and the air valve are arranged on the floating frame system to change the balance weight of the whole net cage, so that the net cage is lifted. In flowing water, the deformation and displacement of the netting can be restrained by fixing the counterweight frame through the second anchor rope, so that the volume loss rate of the netting is reduced. When the anchor rope does not adjust the position of the anchor point, the sinking and floating of the integral net cage can be realized.
For a better understanding of the nature and technical content of the present application, reference should be made to the following detailed description and accompanying drawings, which are provided to illustrate the present application and are not intended to limit the scope of the present application in any way.
Drawings
Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The accompanying drawings, which are incorporated herein and constitute part of this disclosure, serve to provide a further understanding of the disclosure. The exemplary embodiments of the present disclosure and their description are provided to explain the present disclosure and not to limit the present disclosure. In the drawings:
fig. 1 to 3 are schematic structural views illustrating an overall structure of an underwater storm-resistant net cage according to an exemplary embodiment of the present application.
Fig. 4 shows a schematic structural diagram of a floating frame system of an underwater storm-resistant net cage according to an exemplary embodiment of the present application.
Fig. 5 is a partially enlarged schematic structural view of a portion a of the connection plate in fig. 4.
Fig. 6 shows a schematic structural view of a main floating pipeline sump of a floating frame system of an underwater storm-resistant net cage according to an exemplary embodiment of the present application.
Fig. 7 shows a schematic structural view of a connection plate of a floating frame system of an underwater storm-resistant net cage according to an exemplary embodiment of the present application.
Fig. 8 shows an overall structural diagram of the underwater storm-resistant net cage provided with the bottom counterweight according to an exemplary embodiment of the application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other means, components, materials, devices, or the like. In such cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.
The flowcharts shown in the figures are illustrative only and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
An underwater storm-resistant net cage according to an embodiment of the present application will be described in detail with reference to the accompanying drawings.
Fig. 1 to 3 are schematic structural views illustrating an overall structure of an underwater storm-resistant net cage according to an exemplary embodiment of the present application. Fig. 4 shows a schematic structural diagram of a floating frame system of an underwater storm-resistant net cage according to an exemplary embodiment of the present application. Fig. 5 is a partially enlarged schematic structural view of a portion a of the connection plate in fig. 4. Fig. 6 shows a schematic structural diagram of a main floating pipeline sump of a floating frame system of an underwater storm-resistant net cage according to an exemplary embodiment of the present application. Fig. 7 shows a schematic structural view of a connection plate of a floating frame system of an underwater storm-resistant net cage according to an exemplary embodiment of the present application.
As shown in fig. 1, the present application discloses an underwater storm-resistant net cage 10, which includes a floating frame system 110, a counterweight system 210, a connecting member 410, a netting system 310 and a mooring system 510 according to an exemplary embodiment of the present application.
As shown in fig. 4-7, the floating frame system 110 includes a main floating pipeline 120 and a plurality of connecting plates 113, wherein the main floating pipeline 120 is provided with a suspension structure 114, 115 for fixing the netting system 310 on a side close to the water surface, each connecting plate 113 includes at least one main floating pipe hole 1131, a cable hole 1133 and an anchor rope hole 1137, the main floating pipeline 120 is installed in the at least one main floating pipe hole 1131, the cable hole 1133 is used for connecting the counterweight system 210 of the net cage, the anchor rope hole 1137 is used for connecting the anchoring system 510 of the net cage, the plurality of connecting plates 113 are fixed around the main floating pipeline 120, and the floating frame system 110 is used for generating buoyancy for the underwater storm-resistant net cage 10 to ensure the overall floating state of the net cage.
The counterweight system 210 includes a counterweight frame 2103, and the counterweight frame 2103 may be formed of i-steel that is attached to the plurality of connecting plates 113 of the float frame system 110. A cement structure may also be used.
Connecting member 410, which includes a cable having one end fixed to cable hole 1133 of connecting plate 113 and the other end fixed to weight frame 2103, is used for connecting floating frame system 110 and weight system 210 to form a flexible-structured net cage.
The netting system 310 includes a netting enclosing the space inside the cage, one side of the netting being connected to the suspension structures 114, 115 of the main floating pipeline 120, and the netting being fixedly connected to the connecting member 410 for restraining deformation of the netting.
As shown in fig. 2, in accordance with the embodiment of the present application, reinforcing member 610 is disposed between pontoon system 110 and counterweight system 210, and connected to connecting member 410, mooring system 510 further comprises a third anchor line 5105 connected to reinforcing member 610, and one end of third anchor line 5105, first anchor line 5101 and second anchor line 5103 are connected to the same anchor point.
As shown in fig. 3, mooring system 510 further includes a third anchor line 5105, reinforcing member 610 is not provided between buoyant frame system 110 and counterweight system 210, third anchor line 5105 is connected to connecting member 410, and one end of third anchor line 5105, first anchor line 5101, and second anchor line 5103 are connected to the same anchor point, according to the embodiment of the present application.
According to the embodiment of the present application, the floating frame system 110 further includes a guardrail tube 111 forming a closed guardrail tube 111, the guardrail tube 111 is located at the periphery of the main floating tube 120, and the connecting member 410 is connected and fixed between the main floating tube and the guardrail tube 111. The guardrail tubes 111 are arranged on the periphery of the main floating tube 120 through the guardrail tube holes 1139 of the connecting plates 113, so that the main floating tube 120 can be effectively protected, and the main floating tube 120 and the guardrail tubes 111 are connected into a whole by adopting a plurality of connecting plates 113. The connection plate 113 has a hole 1136 for passing the air inlet pipe therethrough and a conduit hole 1135 for mounting a cable.
As shown in fig. 4, the main floating pipeline 120 includes an air chamber 117 and a water chamber 115, the air chamber 117 and the water chamber 115 are equally divided into a plurality of sections of chambers which are not communicated with each other, and the main floating pipeline 120 is a closed pipeline formed by at least one main floating pipe.
The sump 115 of the float frame system 110 includes air ports between which the water ports are disposed for air intake and exhaust and water ports for water intake and drainage. The air port is provided with a filter screen.
The air port of the water sump 115 of the main floating pipeline 120 is provided with an air nozzle which is connected with an air inlet pipe 131, an air outlet pipe 133 and an air inlet and outlet valve. The water inlet and outlet pipe 138 is arranged on the water port of the water sump 115, the electromagnetic valve 137 is arranged on the water inlet and outlet pipe 138 and the exhaust pipe 133, a DN50 electromagnetic valve can be adopted, and the water port is connected with a water inlet and outlet valve. The cable supplying power to the solenoid valve 137 is fixed to the floating frame system 110 through the connection plate 113. The water inlet and outlet pipe 138 and the air outlet pipe 133 are connected to the connection plate 113.
Two air ports may be provided at both ends of the sump 115, and an exhaust pipe 133 may be installed at the air ports. The water inlet is arranged in the middle of the water bin 115, and the water inlet and outlet pipe 138 is arranged on the water inlet, so that quick exhaust and quick drainage are facilitated. An air port and a water port may be provided at both ends of the sump 115. Of course, the specific positions and the number of the elements are not limited in the disclosure, and all the elements can achieve the same technical effects as the embodiments of the present application.
An air supply pipe is arranged on the air bin 117 of the main floating pipeline 120, and a manual air supply valve 135 is arranged on the air supply pipe and used for supplying air to the air bin 117. The air supply pipe is provided with a protective cap. The main buoyancy pipe 120 may be a pipe of high strength polyethylene (HDPE).
The floating frame system 110 further includes a flange 140 for connecting the air tank 117 and the water tank 115, and the plurality of connection plates 113 are respectively fixed to the flange 140. The water sump 115 and the gas sump 117 are arranged at intervals, and when the water sump 115 is filled with water and inflated, the net cage can sink and float upwards, and the floating frame system 110 can generate uniform buoyancy and gravity. The connection plate 113 may be fixed to the main floating pipe in a welded manner.
The floating frame system 110 is circular, square or regular polygonal. Buoys may be provided on the floating frame system 110 to determine the location of the net cage and may send signals to a terminal server.
Fig. 8 shows an overall structural diagram of the underwater storm-resistant net cage provided with the bottom counterweight according to an exemplary embodiment of the application.
As shown in fig. 8, according to the embodiment of the present application, the weight frame 2103 is circular, square or regular polygon, and is connected to the floating frame system 110 through the connecting member 410 to form a three-dimensional space.
According to an embodiment of the present application, the connection member 410 includes a flexible connection structure and a rigid connection structure. The connector 410 may be a stainless steel cable.
According to the embodiment of the present application, the netting system 310 is suspended from the suspension structures 114, 115 of the main floating pipe 120 of the floating frame system 110, and the suspension structures 114, 115 may be connected to the top end of the netting by using suspension steel bars. The netting can adopt a semi-rigid polymer composite net, has the characteristics of light weight and high strength, and is not easy to damage.
The netting is suspended from the suspension structures 114, 115 of the main floating pipes of the floating frame system 110, so that the problem of rapid corrosion of the netting at the place where air is in contact with seawater is avoided. The netting is fixed with the connecting piece 410, reducing the counterweight at the bottom of the netting. The floating frame system 110 and the counterweight system 210 are simultaneously fixed through two anchor ropes, so that the net cage is prevented from being integrally displaced under the influence of wind waves under the condition of the wind waves.
The lifting working principle of the wind wave resistant net cage 10 is that the total sinking force of the net cage is P (comprising a frame, a netting, a counterweight frame 2103 and the like). The buoyancy of the air chamber 117 of the main floating pipeline 120 of the net cage floating frame system 110 is F 1 The buoyancy of the inflated water sump 115 of the floating cage system 110 is F 2 . The total buoyancy of the net cage floating frame system 110 is F, so F = F 1 +F 2 。
And (3) in the floating state of the net cage, connecting the air inlet and outlet valves to an inflator pump, inflating at low pressure, closing the air inlet and outlet valves when the integral net cage F is larger than P, and stopping inflating, wherein the net cage is in the floating state.
And in the net cage settling process, the water inlet and outlet valves are opened to exhaust and inject water, and when F is smaller than P, the net cage floating frame system 110 gradually sinks into water. When the net cage sinks to the counterweight frame 2103 or the bottom counterweight 2101 touches the water bottom, the net cage stops sinking and keeps a hovering state. The net cage can be fixed by the anchor rope and can not drift randomly.
And in the floating process of the net cage, connecting an inflator pump to the air inlet and outlet valves for low-pressure inflation and drainage to increase the buoyancy of the water sump 115 of the floating frame system 110, and closing the air inlet and outlet valves after the floating frame system 110 of the net cage completely floats on the water surface when F is larger than P.
The lifting speed and the lifting time can be controlled by opening and closing the air inlet and outlet valves and the water inlet and outlet valves in the whole lifting process of the net cage, and the whole process is adjusted by the buoyancy change of the water bin 115 of the floating frame system 110. The operation is simple, quick and convenient.
Finally, it should be noted that: although the present disclosure has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (11)
1. The utility model provides an unrestrained box with a net of anti-wind under water which characterized in that includes:
the floating frame system comprises a main floating pipeline and a plurality of connecting plates, the main floating pipeline is provided with a suspension structure, each connecting plate comprises at least one main floating pipe hole, a cable rope hole and an anchor rope hole, the main floating pipeline is arranged in the at least one main floating pipe hole, and the connecting plates are fixed on the periphery of the main floating pipeline;
the counterweight system comprises a counterweight frame, and the counterweight frame is connected to cable holes on a plurality of connecting plates of the floating frame system;
the connecting piece comprises a cable, one end of the cable is fixed in a cable hole of the connecting plate, the other end of the cable is fixed in the counterweight frame, and the connecting piece is connected between the floating frame system and the counterweight system;
the netting system comprises a netting and a main floating pipeline, wherein the netting surrounds the space inside the net cage, the suspension structure of the main floating pipeline is connected to one side of the netting so as to fix the netting system, and the netting is fixedly connected with the connecting piece;
the anchoring system comprises at least four groups of anchor ropes which are uniformly distributed around the net cage, each group of anchor ropes comprises a first anchor rope and a second anchor rope, one ends of the first anchor rope and the second anchor rope are connected with the same anchor point, the other end of the first anchor rope is connected with an anchor rope hole of a connecting plate of the floating frame system, and the other end of the second anchor rope is connected with the counterweight system.
2. The underwater storm-resistant net cage according to claim 1, wherein the main floating pipeline comprises an air chamber and a water chamber, the air chamber and the water chamber are equally divided into a plurality of sections of chambers which are not communicated with each other, and the main floating pipeline is a closed pipeline formed by at least one main floating pipe.
3. The underwater wave resistant cage of claim 1, wherein the connectors include flexible connection structures and rigid connection structures.
4. The underwater storm-resistant cage of claim 1, wherein said floating frame system further comprises:
the guardrail pipe forms a closed guardrail pipeline, the guardrail pipeline is located at the periphery of the main floating pipeline, and the connecting piece is connected and fixed between the main floating pipeline and the guardrail pipe.
5. The underwater storm-resistant cage of claim 2, wherein said sump comprises:
the air port is used for air intake and exhaust, and the water gap is used for water intake and drainage.
6. The underwater wind and wave resisting net cage according to claim 5, wherein an air nozzle is arranged on an air port of the water bin of the main floating pipeline and connected with an air inlet and outlet valve.
7. The underwater wind and wave resistant net cage according to claim 2, wherein a manual aeration valve is arranged on the air bin of the main floating pipeline.
8. The underwater storm-resistant cage of claim 2, wherein said floating frame system further comprises:
the flange is used for connecting the gas bin and the water bin, and the connecting plates are respectively fixed at the flange.
9. The underwater storm-resistant cage of claim 1, wherein a reinforcing member is disposed between said floating frame system and said counterweight system, and connected to said connecting member, said mooring system further comprising a third anchor line connected to said reinforcing member, wherein one end of said third anchor line, said first anchor line and said second anchor line are connected to a same anchor point.
10. The underwater wave resistant cage of claim 1, wherein the mooring system further comprises a third mooring line connected to the connector, one end of the third mooring line, the first mooring line and the second mooring line being connected to the same anchor point.
11. The underwater wave-resistant net cage of claim 1, wherein the counterweight system further comprises:
and the bottom counterweight is connected below the counterweight frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252117.0U CN217547015U (en) | 2021-06-04 | 2021-06-04 | Unrestrained box with a net of anti-wind under water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252117.0U CN217547015U (en) | 2021-06-04 | 2021-06-04 | Unrestrained box with a net of anti-wind under water |
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| CN217547015U true CN217547015U (en) | 2022-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273527A (en) * | 2021-06-04 | 2021-08-20 | 权虎山 | Unrestrained box with a net of anti-wind under water |
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2021
- 2021-06-04 CN CN202121252117.0U patent/CN217547015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273527A (en) * | 2021-06-04 | 2021-08-20 | 权虎山 | Unrestrained box with a net of anti-wind under water |
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