Net cage for fishery breeding

Abstract

The invention relates to a net cage for fishery breeding, which comprises a frame, a netting arranged around the frame and an annular transmission mechanism, and the annular transmission mechanism is configured to enable at least part of the netting to circularly rotate relative to the frame. The annular transmission mechanism comprises an annular transmission part arranged in the circumferential direction of the netting and a fixed transmission part in transmission fit with the annular transmission part, at least part of the netting is detachably installed on the annular transmission part, and the fixed transmission part is installed on the frame and connected with a power device. According to the technical scheme, due to the fact that the netting is detachably installed on the annular transmission part, when the netting is rotated through the annular transmission part, installation and maintenance of the netting can be rapidly and conveniently completed, in addition, by circularly rotating the netting in the vertical direction, the netting can be alternately exposed out of the sea surface, and successive airing and cleaning of the netting are achieved.

Description

Technical Field

[0001] The present disclosure relates to the field of fishery farming, and in particular to a net cage used for fishery farming. Background Art

[0002] In the process of fish farming, aquaculture cages are usually used. The aquaculture space surrounded by the net of the aquaculture cage ensures the living environment of the fish. In related technologies, the net of the aquaculture cage is an integrated structure with a large volume, and the net is fixed on the frame of the cage, which makes installation difficult and not easy for daily cleaning and maintenance. Summary of the invention

[0003] The purpose of the present invention is to provide a net cage for fishery breeding, which can realize that the nets are alternately exposed to the sea surface through cyclic rotation, so that the installation, drying and maintenance of the nets are convenient.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a net cage for fishery farming, comprising a frame, a net arranged around the frame and an annular transmission mechanism, the annular transmission mechanism being constructed so that at least part of the net can rotate cyclically relative to the frame, the annular transmission mechanism comprising an annular transmission member arranged along the circumference of the net and a fixed transmission member in transmission cooperation with the annular transmission member, the at least part of the net being detachably mounted on the annular transmission member, the fixed transmission member being mounted on the frame and connected to a power device.

[0005] Optionally, the annular transmission mechanism is a chain transmission mechanism or a belt transmission mechanism, the annular transmission member is configured as a chain, and the fixed transmission member includes a sprocket engaged with the chain.

[0006] Optionally, a guide rail is provided on the frame, the guide rail is formed with a guide groove, the chain is slidably connected to the guide groove, a perforated plate is connected to the side of the chain, and the net is detachably connected to the chain through connecting holes on the perforated plate.

[0007] Optionally, the annular transmission parts are arranged in a ring at least on the vertical plane, so that the net can be exposed to the sea level in turn, and the net box is floating or fixed. When the net box is fixed, the net box also includes a support seat, which is connected to the frame and is used to support the frame, so that an installation space is formed at the lower end of the frame, so that at least part of the net can be inserted into the installation space.

[0008] Optionally, the net includes a plurality of meshes, and the plurality of meshes are detachably connected end to end in sequence, and the annular transmission members are multiple and arranged at intervals, and at least part of the net is detachably connected between two adjacent annular transmission members.

[0009] Optionally, the net includes a single-layer net, which is entirely surrounded by the outside of the frame, there are multiple fixed transmission parts and at least some of the fixed transmission parts are installed on the corners of the frame, the frame is constructed as a rectangular frame and has a rectangular structure located on a vertical plane, the single-layer net is surrounded by the rectangular frame, and multiple fixed transmission parts are at least symmetrically arranged at the four corners of the rectangular frame.

[0010] Optionally, the net includes a double-layer net, which is arranged on a partial side surface of the frame and surrounded by a corresponding side frame body on the partial side surface. The annular transmission mechanism enables the double-layer net to circulate around the side frame body, and the fixed transmission member is arranged at least at both ends of the side frame body.

[0011] Optionally, the side frame is a single vertical frame, and the number of the fixed transmission members is two and they are respectively arranged at the upper and lower ends of the single vertical frame.

[0012] Optionally, the double-layer net is arranged on two adjacent sides of the frame and circulates around the corresponding side frame body through the annular transmission mechanism, and the fixed transmission member is arranged at least at both ends and intersecting corners of the side frame body to make the annular transmission member turn.

[0013] Optionally, the frame is a rectangular frame and has a bottom side frame body located on the bottom surface and vertical frames located on both sides of the bottom side frame body, the double-layer net is arranged on the bottom side frame body and the two vertical frames, the fixed transmission parts are respectively arranged on the tops of the two vertical frames and at the intersection corners with the bottom side frames, the fixed transmission parts located at the intersection corners include an inner transmission part and an outer transmission part, the outer transmission part is fixed on the side frame body and is located inside the annular transmission part, and the inner transmission part is fixed on the inner bracket of the side frame body and is located outside the annular transmission part.

[0014] Through the above technical scheme, the net cage for fishery farming provided by the present invention is provided with an annular transmission mechanism, and the net is detachably installed on the annular transmission member. When the net is rotated by the annular transmission mechanism, on the one hand, it is convenient for personnel to quickly and efficiently complete the installation and maintenance of the net at a fixed position. On the other hand, by cyclically rotating the net in the vertical direction, the net can be alternately exposed to the sea surface, thereby realizing the successive drying and cleaning of the net.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 A schematic diagram of the structure of a net box provided in an embodiment of the present disclosure; Figure 2 Another structural schematic diagram of a net box provided in an embodiment of the present disclosure; Figure 3 A schematic diagram of the structure of a chain of a net cage provided in an embodiment of the present disclosure; Figure 4 A schematic diagram of the installation of the guide rails and chains of the net box provided in the embodiment of the present disclosure; Figure 5 A schematic diagram of the installation of a single-layer net and a frame of a net cage provided in an embodiment of the present disclosure; Figure 6 Another schematic diagram of the installation of a single-layer net and a frame of a net cage provided in an embodiment of the present disclosure; Figure 7 A schematic diagram of the installation of the net and chain of the net box provided in the embodiment of the present disclosure; Figure 8 A schematic structural diagram of an embodiment of a double-layer net of a net cage provided in an embodiment of the present disclosure; Fig. 9 Another structural schematic diagram of an embodiment of a double-layer net of a net cage provided in an embodiment of the present disclosure; Fig.10 A schematic structural diagram of another embodiment of a double-layer net of a net cage provided in an embodiment of the present disclosure; Fig.11 Another structural schematic diagram of another embodiment of the double-layer net of the net box provided in the embodiment of the present disclosure.

[0017] Description of Reference Numerals 1-frame; 10-side frame; 11-support seat; 12-bottom side frame; 13-vertical frame; 14-internal bracket; 15-fixing part; 110-installation space; 2-net; 20-mesh; 21-single-layer net; 22-double-layer net; 3-annular transmission mechanism; 31-annular transmission member; 32-sprocket; 33-inner transmission member; 34-outer transmission member; 4-hole plate; 41-connecting hole; 5-guide rail; 51-guide groove; 52-installation part; 521-installation hole; 6-bottom net. DETAILED DESCRIPTION

[0018] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0019] In this disclosure, unless otherwise stated, reference is made to Figure 1 In the marking, the directional words "upper and lower" used can refer to the "upper and lower" in the direction of gravity when the cage is in use, and the terms "first, second" and the like used are to distinguish one element from another, and have no order or importance. Among them, "inside and outside" refer to the inside and outside of the contour of each component itself. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.

[0020] According to a specific embodiment of the present disclosure, a net cage for fishery farming is provided, comprising a frame 1, a net 2 arranged around the frame 1 and an annular transmission mechanism 3, the annular transmission mechanism 3 being constructed so that at least a portion of the net 2 can cyclically rotate relative to the frame 1, the annular transmission mechanism 3 comprising an annular transmission member 31 arranged along the circumference of the net 2 and a fixed transmission member that cooperates with the annular transmission member 31 for transmission, at least a portion of the net 2 is detachably mounted on the annular transmission member 31, and the fixed transmission member is mounted on the frame 1 and connected to a power device.

[0021] Through the above technical scheme, the net cage for fishery farming provided by the present invention is provided with an annular transmission mechanism 3, and the net 2 is detachably installed on the annular transmission member 31. When the net 2 is rotated by the annular transmission mechanism 3, on the one hand, it is convenient for personnel to quickly and efficiently complete the installation and maintenance of the net 2 at a fixed position. On the other hand, by cyclically rotating the net 2 in the vertical direction, the net 2 can be alternately exposed to the sea surface, thereby realizing the successive drying and cleaning of the net 2.

[0022] In the embodiments provided in the present disclosure, reference is made to Figures 1 to 4 As shown in , the annular transmission mechanism 3 can be a chain transmission mechanism or a belt transmission mechanism, that is, the transmission connection and detachable installation of the net 2 are realized through a flexible strip transmission member, such as a chain, a flexible toothed belt, etc. In some embodiments, Figure 5As shown, the annular transmission mechanism 3 is a chain transmission mechanism. In this case, the annular transmission member 31 is constructed as a chain, and the fixed transmission member includes a sprocket 32 ​​meshed with the chain. In this way, in the technical solution of this exemplary embodiment, the chain transmission mechanism is used to make at least part of the net 2 rotate cyclically relative to the frame 1, and the sprocket 32 ​​meshes with the chain. The sprocket 32 ​​is installed on the frame 1 and connected to the power device. In this way, the sprocket 32 ​​is driven to rotate by the power device, and the rotation of the sprocket 32 ​​drives the chain to move. The chain rotates cyclically relative to the frame 1, thereby driving the net 2 to rotate cyclically relative to the frame 1, so as to facilitate the cleaning or disassembly of the net 2. Among them, there can be multiple fixed transmission members, at least one of which is connected to the power device, and the other fixed transmission members can be used as the steering or guide of the annular transmission member. In addition, the power device can be various conventional power devices in the field, such as motors, hydraulic motors, engines, etc. Since these power devices are used in the sea, they need to be conventionally waterproofed, and the present disclosure does not limit this.

[0023] In addition, there are many ways to detachably connect the annular transmission member 31 and the net 2, such as adding various intermediate connecting members. In the embodiment provided in the present disclosure, refer to Figure 3 and Figure 4 As shown in , the side of the chain can be connected with a perforated plate 4, that is, a plate-shaped connector provided with a connection hole 41. The net 2 is detachably connected to the chain through the connection hole 41 on the perforated plate 4. By providing the perforated plate 4, it is convenient to connect the net 2 with the chain, wherein the chain has a plurality of links, and a perforated plate 4 can be provided on each link, so that the chain is evenly arranged with a plurality of perforated plates 4 along the circumference, so that the net 2 can be connected to each part of the chain correspondingly, thereby improving the reliability of the connection between the net 2 and the chain, and facilitating a better fit between the net 2 and the chain.

[0024] In order to further improve the fit between the net 2 and the chain, in this embodiment, two or more connecting holes 41 on each perforated plate 4 can be provided, and the two or more connecting holes 41 are arranged at intervals, which is conducive to the full fit between the net 2 and the chain.

[0025] In the embodiments provided in the present disclosure, reference is made to Figure 4 As shown in , the frame 1 may be provided with a guide rail 5, the guide rail 5 is formed with a guide groove 51, and the chain is slidably connected with the guide groove 51. In the above technical solution, the guide rail 5 plays a guiding role, so that the chain can move along the guide rail 5, avoiding the chain from being offset and disengaged from the sprocket 32, improving the stability of the chain during transmission, thereby improving the stability of the net 2 during movement, which is conducive to improving the convenience of operation.

[0026] In this disclosure, reference is made to Figure 4As shown in , the guide rail 5 can be formed with a mounting portion 52, the mounting portion 52 is provided with a mounting hole 521, and the frame 1 is provided with a threaded hole. The fastener is threadedly connected with the threaded hole through the mounting hole 521 to connect the mounting portion 52 to the frame 1, so that the guide rail 5 can be detachably installed on the frame 1, so that the guide rail 5 is easy to install or disassemble.

[0027] In the embodiments provided in the present disclosure, reference is made to Figure 1 and Figure 5 As shown in , the annular transmission member 31 can be arranged in a ring at least on the vertical plane, so that the nets 2 can be exposed to the sea level in sequence. With such an arrangement, since the annular transmission member 31 can cyclically rotate on the vertical plane, the corresponding nets 2 can be driven to cyclically rotate on the vertical plane, so that the nets 2 can be exposed to the sea level in sequence, so as to perform drying or maintenance operations on the nets 2. In other possible embodiments, for some maintenance and installation considerations, the nets 2 can also be cyclically rotated only on the horizontal plane, and the operator can still complete the installation and cleaning of the nets 2 at a fixed position, and the present disclosure does not limit this.

[0028] In the embodiments provided in the present disclosure, reference is made to Figure 5 As shown in , the cage is floating or fixed. When a floating cage is used, the cage can be semi-submerged, that is, the top of the cage is exposed above the sea level, and the bottom of the cage is below the sea level and a gap is formed between the seabed. When the cage is fixed, the cage can also include a support seat 11, which is connected to the frame 1 and used to support the frame 1, so that an installation space 110 is formed at the lower end of the frame 1, so that at least part of the net 2 can be inserted into the installation space 110. In the above technical solution, the support seat 11 is used to support the frame 1, and the installation space 110 formed is convenient for part of the net 2 to pass through. In addition, the setting of the installation space 110 is conducive to improving the water flow exchange performance at the bottom of the cage, and avoiding the accumulation of feed or excrement at the bottom of the cage to cause fish diseases.

[0029] In the embodiments provided in the present disclosure, reference is made to Figure 7 As shown in , the net 2 includes a plurality of nets 20, which are detachably connected end to end. By setting it in this way, when the net 2 is partially damaged, only the damaged net 20 needs to be replaced, and the entire net 2 does not need to be replaced, which is conducive to reducing costs and improving the convenience of replacement compared to replacing the entire net 2.

[0030] In the embodiments provided in the present disclosure, reference is made to Figure 1 and Figure 2As shown in , the annular transmission members 31 can be multiple and arranged at intervals, and at least part of the net 2 can be detachably connected between two adjacent annular transmission members 31. Through such an arrangement, the multiple annular transmission members 31 rotate in a circular manner, so that the multiple nets 2 can rotate in a circular manner relative to the frame 1, so as to perform drying, repair or replacement of the multiple nets 2, wherein at least part of the net 2 can be detachably connected between two adjacent annular transmission members 31, so that at least part of the net 2 can be synchronously driven by the two adjacent annular transmission members 31 to rotate in a circular manner, which is conducive to improving the stability and rotation efficiency of the rotation of at least part of the net 2. In addition, the two adjacent annular transmission members 31 can respectively apply traction to the opposite sides of the connected net 2, which is conducive to maintaining the shape of the net 2 and preventing the net 2 from floating, thereby ensuring that the spatial size of the breeding area is in a relatively fixed state.

[0031] In one embodiment provided in the present disclosure, referring to Figure 5 and Figure 6 As shown in , the net 2 may include a single-layer net 21, which is entirely surrounded by the outside of the frame 1. That is, in this embodiment, the net 2 has a single layer, and the single-layer net 21 surrounds the outside of the frame 1 to intercept fish.

[0032] In another embodiment provided by the present disclosure, referring to Figures 8 to 11 As shown in the figure, the net 2 may include a double-layer net 22, which is arranged on a partial side surface of the frame 1 and is surrounded by the corresponding side frame body 10 of the partial side surface. That is, in this embodiment, the net 2 has a double layer, and the double-layer net 22 is arranged on a partial side surface of the frame 1 to improve the interception strength of the net 2.

[0033] The above two embodiments will be described in detail below.

[0034] Reference Figure 5 and Figure 6 As shown in , in the first embodiment, the net 2 includes a single-layer net 21, which can be entirely surrounded outside the frame 1, and the fixed transmission member is multiple and at least part of the fixed transmission member is installed on the corner of the frame 1 to realize the turning of the annular transmission member 31. Through such a configuration, after the annular transmission member 31 and the fixed transmission member are in transmission cooperation, that is, after the chain and the multiple sprockets 32 are meshed in sequence, the chain can be entirely surrounded outside the frame 1, so that the single-layer net 21 is connected to the chain, so that when the sprocket 32 ​​rotates, it can drive the chain to rotate, and the chain rotation drives the single-layer net 21 to rotate around the frame 1 as a whole, so as to perform maintenance (i.e., drying, repair or replacement) operations on the single-layer net 21. In consideration of better waterproofing, the sprocket connected to the power device can be designed to be located at the upper end of the frame 1 to be exposed to the sea surface and reduce contact with seawater.

[0035] In the embodiments provided in the present disclosure, reference is made to Figure 5 and Figure 6 As shown in , the frame 1 can be constructed as a rectangular frame and has a rectangular structure located on a vertical plane, the single-layer net 21 is arranged around the rectangular frame, and a plurality of fixed transmission members are symmetrically arranged at least at the four corners of the rectangular frame. By constructing the frame 1 as a rectangular frame, the single-layer net 21 can be arranged around the outer periphery of the rectangular frame as a whole, which is convenient for arranging the single-layer net 21. By symmetrically arranging the fixed transmission members at the four corners of the rectangular frame, the fixed transmission members can be reliably matched with the annular transmission member 31 to ensure the stability of the annular transmission member 31 during transmission. In addition, by arranging the fixed transmission members at the four corners of the rectangular frame, a gap can be formed between the annular transmission member 31 and the frame, avoiding the generation of friction between the annular transmission member 31 and the frame, and improving the smoothness of the movement of the annular transmission member 31, so that the annular transmission member 31 can smoothly drive the net 2 to rotate.

[0036] In another embodiment provided by the present disclosure, referring to Figure 8 and Fig. 9 As shown in , the net 2 may include a double-layer net 22, which is arranged on a part of the side surface of the frame 1 and is arranged around the corresponding side frame 10 of the part of the side surface, and the annular transmission mechanism 3 enables the double-layer net 22 to circulate around the side frame 10, and the fixed transmission member is arranged at least at both ends of the side frame 10. That is, in the above technical solution, although each side surface of the frame 1 has a side frame 10, the double-layer net 22 can be designed to be arranged around the corresponding side frame 10 of the part of the side surface, so that the fixed transmission member is arranged at least at both ends of the side frame 10, and when the annular transmission mechanism 3 is working, it drives the corresponding double-layer net 22 to circulate around the corresponding side frame 10, so that the double-layer net 22 can be sequentially transferred from one end of the side frame 10 to the other end of the side frame 10, so as to facilitate installation or cleaning.

[0037] In the present disclosure, the double-layer net 22 may be arranged on a single side of the frame 1 , or the double-layer net 22 may be arranged on multiple sides of the frame 1 , wherein the multiple sides may be two or more.

[0038] The above two implementation modes will be described in detail below.

[0039] In the embodiments provided in the present disclosure, reference is made to Figure 8 and Fig. 9As shown in the figure, the side frame body 10 can be a single vertical frame body 13, and there are two fixed transmission members which are respectively arranged at the upper and lower ends of the single vertical frame body 13. That is to say, in this embodiment, the two fixed transmission members are respectively arranged at the upper and lower ends of the single vertical frame body 13, and the annular transmission mechanism 3 is driven by the fixed transmission members to rotate along the single vertical frame body 13 in a circle, so that the double-layer net 22 can be rotated from the lower end of the vertical frame body 13 to the upper end of the vertical frame body 13 in sequence, so as to perform maintenance operations on the double-layer net 22.

[0040] In another embodiment provided by the present disclosure, referring to Fig.10 As shown in , the double-layer net 22 can be arranged on two adjacent side surfaces of the frame 1, and circulates around the corresponding side frame body 10 through the annular transmission mechanism 3, and the fixed transmission member is arranged at least at the two ends and the intersecting corners of the side frame body 10 to make the annular transmission member 31 turn. That is to say, in this embodiment, the double-layer net 22 is arranged on the two adjacent side surfaces of the frame 1, and the double-layer net 22 is driven by the annular transmission mechanism 3 to make a cyclic motion along the two side frames 10 on the two adjacent side surfaces, so that the double-layer net 22 can be transferred from one of the two adjacent side frames 10 to the other in turn, and the double-layer net 22 is turned by the fixed transmission member at the intersection of the two side frames 10.

[0041] In another embodiment provided by the present disclosure, referring to Fig.10 and Fig.11 As shown in , the frame 1 may be a rectangular frame and has a bottom frame body 12 located at the bottom surface and vertical frames 13 located at both sides of the bottom frame body 12, a double-layer net 22 is arranged on the bottom frame body 12 and the two vertical frames 13, fixed transmission members are arranged at the tops of the two vertical frames 13 and at the intersection corners with the bottom frame body 12, respectively, and the fixed transmission members located at the intersection corners include an inner transmission member 33 and an outer transmission member 34, the outer transmission member 34 is fixed on the side frame body 10 and is located inside the annular transmission member 31, and the inner transmission member 33 is fixed on the inner bracket 14 of the side frame body 10 and is located outside the annular transmission member 31. The inner bracket 14 may be various beams or other structural members connected to the inside of the side frame body. By such an arrangement, after the annular transmission member 31 cooperates with each fixed transmission member, the annular transmission member 31 is arranged around three sides of the rectangular frame, namely the bottom side and the two sides. When the fixed transmission member rotates, the annular transmission member 31 is driven to rotate. The rotation of the annular transmission member 31 drives the double-layer net 22 to rotate from the vertical frame 13 on one side to the bottom frame 12, and then to the vertical frame 13 on the other side. During this process, the double-layer net 22 rotates from the inside of the rectangular frame to the outside of the rectangular frame, and the double-layer net 22 rotates from the lower end of the rectangular frame to the upper end of the rectangular frame.

[0042] In this disclosure, reference is made to Fig.10As shown in , the inner bracket 14 may be provided with a fixing member 15, and the fixed transmission member is connected to the inner bracket 14 through the fixing member 15 and forms a gap with the intersecting bottom frame 12 and the vertical frame 13, so that at least part of the net 2 can be inserted into the gap.

[0043] It should be noted that the net 2 provided in the present disclosure may include a single-layer net 21 and a double-layer net 22 for being arranged on a single vertical frame 13, or the net 2 provided in the present disclosure may only include a double-layer net 22 for being arranged on a single vertical frame 13, or the net 2 provided in the present disclosure may include a combination of the double-layer nets 22 shown in the above embodiments. For the above-mentioned methods, the installation method of the net box provided in the present disclosure will be described in detail below: In the case where the net 2 includes a single-layer net 21 and a double-layer net 22 for being arranged on a single vertical frame 13, the single vertical frames 13 corresponding to the two opposite sides of the rectangular frame can be respectively arranged with double-layer nets 22, that is, the double-layer nets 22 are surrounded by the side frames 10 corresponding to the two opposite sides, and the upper and lower ends of the two opposite single vertical frames 13 are respectively provided with fixed transmission members (refer to Figure 8 As shown in FIG. 1 , the other sides between the two opposite sides of the rectangular frame enclose a rectangular structure, on which a single-layer mesh 21 can be arranged, that is, the single-layer mesh 21 is entirely arranged outside the rectangular structure (refer to FIG. 1 ). Figure 5 As shown in ), so that each side of the rectangular frame is arranged with a net 2, that is, the net 2 surrounds the entire rectangular frame; In the case where the net 2 only includes a double-layer net 22 for being arranged on a single vertical frame 13, the rectangular frame has a bottom side frame 12 located at the bottom surface and vertical frames 13 located on both sides of the bottom side frame 12, and the bottom net 6 can be fixedly arranged on the bottom side frame 12 (refer to Figure 8 As shown in the figure, a double-layer net 22 is arranged on each vertical frame 13, that is, fixed transmission parts are respectively arranged at the upper and lower ends of each vertical frame 13, so that the annular transmission part 31 is driven to rotate by the fixed transmission part, thereby driving the double-layer net 22 on the corresponding vertical frame 13 to rotate. In this way, the net 2 on any vertical frame 13 can be independently controlled to rotate in a cycle, thereby improving the flexibility of use.

[0044] When the double-layer net 22 of the above-mentioned embodiments is used in combination, the double-layer net 22 can be arranged on two adjacent side surfaces of the frame 1, and circulate around the corresponding side frame 10 through the annular transmission mechanism 3, and the fixed transmission member is arranged at least at both ends and the intersecting corners of the side frame 10 to make the annular transmission member 31 turn, and the double-layer net 22 is respectively arranged on the vertical frames 13 on the other sides of the frame 1, so that the double-layer net 22 circulates around the corresponding single vertical frame 13; in addition, when the double-layer net 22 is used in combination, the double-layer net 22 can also be arranged on the bottom side frame 12 and the two vertical frames 13, and the fixed transmission member is respectively arranged on the top of the two vertical frames 13 and the intersecting corners with the bottom side frame 12, and the double-layer net 22 is respectively arranged on the vertical frames 13 on the other sides of the frame 1, so that the double-layer net 22 circulates around the corresponding single vertical frame 13.

[0045] Of course, the net 2 provided by the present invention can also adopt other combinations of the above-mentioned embodiments, as long as the net 2 can be arranged around the frame 1, and at least part of the net 2 can be driven by the annular transmission mechanism 3 to rotate relative to the frame 1, so as to facilitate personnel to maintain the net 2 at a suitable position.

[0046] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0048] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A net cage for fish farming, characterized in that: It includes a frame, a net arranged around the frame and an annular transmission mechanism, wherein the annular transmission mechanism is constructed so that at least part of the net can rotate cyclically relative to the frame, and the annular transmission mechanism includes an annular transmission member arranged along the circumference of the net and a fixed transmission member that cooperates with the annular transmission member in transmission, at least part of the net can be detachably mounted on the annular transmission member, and the fixed transmission member is mounted on the frame and connected to a power device.

2. The net cage according to claim 1, characterized in that: The annular transmission mechanism is a chain transmission mechanism or a belt transmission mechanism, the annular transmission member is configured as a chain, and the fixed transmission member comprises a sprocket engaged with the chain.

3. The net cage according to claim 2, characterized in that: The frame is provided with a guide rail, the guide rail is formed with a guide groove, the chain is connected to the guide groove in a sliding manner, a perforated plate is connected to the side of the chain, and the net is detachably connected to the chain through the connecting holes on the perforated plate.

4. The net cage according to claim 1, characterized in that: The annular transmission parts are arranged in a ring at least on the vertical plane so that the net can be exposed to the sea level in turn. The net box is floating or fixed. When the net box is fixed, the net box also includes a support seat, which is connected to the frame and is used to support the frame so that an installation space is formed at the lower end of the frame, so that at least part of the net can be inserted into the installation space.

5. The net cage according to claim 1, characterized in that: The net includes a plurality of nets, which are detachably connected end to end in sequence. The annular transmission members are multiple and arranged at intervals, and at least part of the net is detachably connected between two adjacent annular transmission members.

6. The net cage according to any one of claims 1 to 5, characterized in that: The net includes a single-layer net, which is entirely surrounded by the outside of the frame. There are multiple fixed transmission parts and at least some of the fixed transmission parts are installed on the corners of the frame. The frame is constructed as a rectangular frame and has a rectangular structure located on a vertical plane. The single-layer net is surrounded by the rectangular frame, and multiple fixed transmission parts are at least symmetrically arranged at the four corners of the rectangular frame.

7. The net cage according to any one of claims 1 to 5, characterized in that: The net includes a double-layer net, which is arranged on a partial side surface of the frame and surrounded by a corresponding side frame body on the partial side surface. The annular transmission mechanism enables the double-layer net to circulate around the side frame body, and the fixed transmission member is arranged at least at both ends of the side frame body.

8. The net cage according to claim 7, characterized in that: The side frame body is a single vertical frame body, and the number of the fixed transmission members is two and they are respectively arranged at the upper and lower ends of the single vertical frame body.

9. The net cage according to claim 7, characterized in that: The double-layer net is arranged on two adjacent sides of the frame and circulates around the corresponding side frame body through the annular transmission mechanism. The fixed transmission member is arranged at least at the two ends and the intersecting corners of the side frame body to make the annular transmission member turn.

10. The net cage according to claim 9, characterized in that: The frame is a rectangular frame and has a bottom side frame body located on the bottom surface and vertical frames located on both sides of the bottom side frame body. The double-layer net is arranged on the bottom side frame body and the two vertical frames. The fixed transmission parts are respectively arranged on the tops of the two vertical frames and at the intersection corners with the bottom side frame body. The fixed transmission parts located at the intersection corners include an inner transmission part and an outer transmission part. The outer transmission part is fixed on the side frame body and is located inside the annular transmission part. The inner transmission part is fixed on the inner bracket of the side frame body and is located outside the annular transmission part.

Images