Lifting type deep sea net cage structure
By using a floating structure and floating crane to operate the deep-sea net cages, efficient net replacement on the water has been achieved, solving the problems of safety risks to divers and damage to fish, and improving replacement efficiency and safety.
Patent Information
- Application Number
- CN202511777423.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-01-02
AI Technical Summary
In existing cage aquaculture, changing the netting requires divers to descend underwater, which poses problems such as high safety risks, low efficiency, significant stress on fish, and severe damage.
The deep-sea net cage adopts a lifting structure, and the nets can be changed on the water by operating the floating body and floating crane. The inner support frame can be flipped by the floating crane to change the nets, reducing the operation of divers and reducing stress and injury to fish.
It enables efficient and convenient net replacement, reduces safety risks to divers and damage to fish, improves replacement efficiency, and reduces economic losses.
Smart Images

Figure CN121241966A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of deep-sea net cages, in particular to a lifting type deep-sea net cage structure. BACKGROUND
[0002] Net cage culture is one of the important modes of modern aquaculture, and the netting, as the core component of the net cage, is soaked in seawater for a long time, and is prone to attach marine organisms such as algae and shellfish, which leads to poor exchange of water inside and outside the net cage, deterioration of water quality inside the net cage, and affects the health and growth of cultured fish. Therefore, regular replacement and cleaning of the netting is an essential maintenance operation in the process of net cage culture.
[0003] Currently, the traditional way of replacing the netting mainly relies on divers to dive underwater to work. This method has many drawbacks: first, diving operation has high safety risks, and requires high professional skills of divers, with huge labor costs; second, the entire replacement process is time-consuming and inefficient, which seriously affects the normal operation of the culture production; third, during the replacement process, the new netting needs to be sleeved outside the old netting, and then the old netting is taken out of the water, which causes great shock to the fish, and the fish will collide violently in the small space, which easily causes damage to the fish body surface, scale loss, and even infection and death, causing direct economic losses to the breeders. SUMMARY
[0004] In view of the above prior art, the present application provides a lifting type deep-sea net cage structure, which can realize water operation, high efficiency and convenience, and can minimize the stress and damage to the fish population.
[0005] To achieve the above-mentioned purpose, the technical scheme of the embodiment of the present application is as follows: A lifting type deep-sea net cage structure, comprising a floating body, an inner support frame, an outer support frame, a netting, a track and an anchor pile, the floating body is connected with the anchor pile through a fixing rope, the floating body is fixedly connected with the outer support frame, the outer support frame is detachably connected with the inner support frame, the outer support frame is provided with the track, the track is provided with a sliding block, the inner support frame is slidably connected with the track, and the inner support frame is provided with the netting.
[0006] Further, the track comprises a left track and a right track, the sliding block is arranged on each of the left track and the right track, the two sliding blocks are connected through a fixed shaft, the inner support frame is rotatably connected with the fixed shaft, upper and lower shifting rods are arranged on both sides of the inner support frame, and the upper and lower shifting rods are both provided with a hook ring.
[0007] Further, the inner support frame comprises a connecting frame, a clamping frame and a bolt, the connecting frame is used for connecting the net, the clamping frame is clamped with the outer support frame through a clamping mechanism, and the connecting frame is connected with the clamping frame through the bolt.
[0008] Further, a plurality of rope holes are arranged in the connecting frame.
[0009] Further, a U-shaped rod is rotatably connected in the connecting frame, a rotation center of the U-shaped rod is parallel to the fixed shaft, the connecting frame is provided with a first limiting stop rod, the U-shaped rod can be rotated from a vertical position to a vertical upward position through a side close to the fixed shaft, and the U-shaped rod is perpendicular to the connecting frame when the U-shaped rod is in contact with the first limiting stop rod during rotation.
[0010] Further, the clamping mechanism comprises an upper rotating column, a lower rotating column and a plug-in rod, the upper rotating column is rotatably connected with the outer support frame, the lower rotating column is rotatably connected with the clamping frame, the outer support frame is provided with an upper column-shaped groove, the upper rotating column is rotatably connected in the upper column-shaped groove, the upper rotating column is connected with an upper operating rod, the upper operating rod is connected with an upper spring sheet, the outer support frame is provided with a plug-in groove in communication with the upper column-shaped groove, the upper rotating column is provided with a first avoiding groove extending to the shaft center from the side, and the first avoiding groove is inclined downward in a natural state; the clamping frame is rotatably connected with the plug-in rod, the plug-in rod is provided with a lower column-shaped groove, the lower rotating column is rotatably connected in the lower column-shaped groove, the lower rotating column is in a semicircular column shape, the lower rotating column is connected with a lower operating rod, the lower operating rod is connected with a lower spring sheet, and a plane of the lower rotating column is inclined upward in a natural state.
[0011] Further, the clamping frame is provided with a second limiting stop rod, the second limiting stop rod is located on both sides of the plug-in rod, and the plug-in rod can be rotated within a range of 5-15 degrees.
[0012] Further, the length of the first avoiding groove is greater than the length of the lower rotating column.
[0013] Further, the inner support frame is a rectangular frame, and the width of the rectangular frame body is less than 0.5 times the depth of the left rail and the right rail.
[0014] The beneficial effects of the present application are that the present application does not require workers to dive under the sea when replacing the old net, and the new net can be directly operated on the floating body when installing the new net, which is more convenient and efficient. After installing the new net, the new net, the old net and the inner support frame are dived into the water together, and the floating crane is used to turn them over, the old net is pulled to the water surface, at the same time, the fish swim into the new net, and then the workers remove the old net on the floating body, the operation process is above the water surface, which is more convenient and efficient. During the turning process, the fish is always under the water, the space under the water is large, the stress of the fish during the net replacement process is reduced, and the body surface damage of the fish is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a cross-sectional structure schematic diagram of a lifting type deep sea net cage structure in an embodiment of the present application; Figure 2 is a cross-sectional structure schematic diagram of the upper part of a lifting type deep sea net cage structure in an embodiment of the present application; Figure 3 is a cross-sectional structure schematic diagram of a lifting type deep sea net cage structure in an embodiment of the present application; Figure 4 is a structure schematic diagram of a clamping mechanism in an embodiment of the present application; Figure 5 is a cross-sectional structure schematic diagram of a clamping mechanism in an embodiment of the present application; Figure 6 is a structure schematic diagram of the underwater turning change of the net in an embodiment of the present application; BRIEF DESCRIPTION OF DRAWINGS 1, floating body; 2, inner support frame; 3, outer support frame; 4, net; 5, track; 6, anchor pile; 7, fixed rope; 8, sliding block; 9, left track; 10, right track; 11, fixed shaft; 12, upper shifting lever; 13, lower shifting lever; 14, hook ring; 15, connecting frame; 16, clamping frame; 17, bolt; 18, clamping mechanism; 19, rope hole; 20, U-shaped rod; 21, first limiting stop lever; 22, upper rotating column; 23, lower rotating column; 24, plug-in rod; 25, upper columnar groove; 26, plug-in groove; 27, first avoiding groove; 28, upper spring sheet; 29, lower columnar groove; 30, lower spring sheet; 31, second limiting stop lever; 32, upper operating lever; 33, lower operating lever. DETAILED DESCRIPTION
[0016] The technical solutions of the present application are further described in detail below in conjunction with the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.
[0017] It should also be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "inner", "outer", "left", "right", and similar expressions as used herein are only for the purpose of illustration and do not indicate the only orientation.
[0018] Reference should also be made to the drawings, which form a part of this specification. Figures 1-6The application provides a lifting type deep sea net cage structure, which comprises a floating body 1, an inner support frame 2, an outer support frame 3, a net 4, a track 5 and an anchor pile 6, the floating body 1 is connected with the anchor pile 6 through a fixing rope 7, the floating body 1 is fixedly connected with the outer support frame 3, the outer support frame 3 is detachably connected with the inner support frame 2, the outer support frame 3 is provided with the track 5, the track 5 is provided with a sliding block 8, the inner support frame 2 is slidably connected with the track 5, and the inner support frame 2 is provided with the net 4. The floating body 1 floats on the water surface and is connected with the anchor pile 6 through the fixing rope 7, the anchor pile 6 is stably anchored under the water bottom and plays a role of fixing and positioning. The outer support frame 3 is fixed on the inner side of the floating body 1, the inner support frame 2 is detachably connected with the inner side of the outer support frame 3, the inner support frame 2 is rotatably connected with the sliding block 8, and the sliding block 8 is slidably connected with the track 5, so that the inner support frame 2 can be lifted up and down and also be turned over. In daily breeding, the net 4 is fixedly connected with the inner support frame 2, the inner support frame 2 is connected with the outer support frame 3, and the net 4 forms a net bag for surrounding fish. After a long time of use, other marine organisms are attached to the net 4, so that the water permeability of the net 4 is affected, and the water quality in the net 4 cannot meet the requirements. At this time, a new net 4 is connected to the inner support frame 2, then a lifting hook of a floating crane is connected to the inner support frame 2, the inner support frame 2 is separated from the outer support frame 3, the inner support frame 2 is slid downward along the track 5 into the water, one side of the inner support frame 2 is pulled upward by the floating crane, the inner support frame 2 is turned over, the new net 4 is turned to the lower side, the positions of the upper and lower nets 4 are exchanged, the fish swim through the inner support frame 2 into the new net 4 after the old net 4 is pulled up, finally the inner support frame 2 is connected with the outer support frame 3 again, and the old net 4 is removed, so that the replacement of the net 4 is completed. When the old net 4 is replaced, workers do not need to dive into the water, and when the new net 4 is installed, the workers can directly operate on the floating body 1, so that the installation is more convenient and efficient. After the new net 4 is installed, the new net 4, the old net 4 and the inner support frame 2 are dived into the water, the floating crane is used to turn over the new net 4, the old net 4 is pulled to the water surface, meanwhile, the fish swim into the new net 4, then the workers remove the old net 4 on the floating body 1, so that the removal is more convenient and efficient. During the turning process, the fish are always under the water, the space under the water is large, the stress of the fish during the net replacement process is reduced, and the body surface damage of the fish is reduced.
[0019] Specifically, the track 5 includes a left track 9 and a right track 10, the left track 9 and the right track 10 are provided with the sliding block 8, the two sliding blocks 8 are connected through the fixed shaft 11, the inner support frame 2 is rotationally connected with the fixed shaft 11, the inner support frame 2 is provided with the upper shifting rod 12 and the lower shifting rod 13 on both sides, and the upper shifting rod 12 and the lower shifting rod 13 are provided with the hook ring 14. After the inner support frame 2 slides to the bottom, the left track 9 and the right track 10 support the inner support frame 2 and the net clothes 4 from both sides, so that the net cage breeding system is balanced, and the floating body 1 is prevented from overturning after the inner support frame 2 slides to the bottom. The sliding block 8 is connected through the fixed shaft 11, so that the two sliding blocks 8 move up and down synchronously. The inner support frame 2 is rotationally connected with the fixed shaft 11, after the sliding block 8 slides to the bottom, the hook of the floating crane is connected with the hook ring 14 of the lower shifting rod 13, is lifted up, drives the inner support frame 2 to overturn, exchanges the positions of the new net clothes 4 and the old net clothes 4, and continuously pulls up the inner support frame 2 and the outer support frame 3. Finally, the worker removes the old net clothes 4, checks whether the connection between the inner support frame 2 and the outer support frame 3 is firm, and stably connects the part that is not connected firmly.
[0020] Specifically, the inner support frame 2 includes a connecting frame 15, a clamping frame 16 and a bolt 17, the connecting frame 15 is used for connecting the net clothes 4, the clamping frame 16 is clamped with the outer support frame 3 through a clamping mechanism 18, and the connecting frame 15 is connected with the clamping frame 16 through a plurality of bolts 17. The floating crane pulls the lower shifting rod 13 to overturn the inner support frame 2, and lifts up, due to the fact that the weight distribution of the two sides of the inner support frame 2 is not completely even, the weight of the side where the old net clothes 4 is located is larger, and the weight of the side where the new net clothes 4 is located is lighter, so that the inner support frame 2 after being lifted up has a certain inclination. The clamping frame 16 is located outside the connecting frame 15, after the inner support frame 2 is pulled up, one side of the clamping frame 16 that is upwarping is clamped with the outer support frame 3, and the other side that is sinking down arranges the old net clothes 4 and then continues to pull up, so that the clamping frame 16 of the inner support frame 2 is connected with the outer support frame 3 firmly. The present application automatically inclines after the inner support frame 2 is pulled up, the old net clothes 4 slides down under the action of gravity, so that the clamping frame 16 that is upwarping is exposed, and the clamping frame 16 is prevented from clamping the old net clothes 4 when being clamped with the outer support frame 3. When the clamping frame 16 of the upwarping part is clamped with the outer support frame 3, the worker pulls the old net clothes 4 into the inner side of the inner support frame 2, which can prevent the clamping frame 16 on the sinking down side from clamping the old net clothes 4 when being clamped with the outer support frame 3, and can drive the fish that have not entered the new net clothes 4 into the new net clothes 4.
[0021] Specifically, the connecting frame 15 is provided with a plurality of rope holes 19. The worker can conveniently connect the net clothes 4 with the connecting frame 15.
[0022] Specifically, the connecting frame 15 is rotationally connected with a U-shaped rod 20, the rotation center of the U-shaped rod 20 is parallel to the fixed shaft 11, the connecting frame 15 is provided with a first limiting stopper 21, the U-shaped rod 20 can rotate from a vertical orientation position to a vertical upward position through a side close to the fixed shaft 11; when the U-shaped rod 20 rotates and touches the first limiting stopper 21, the U-shaped rod 20 is perpendicular to the connecting frame 15. When the lower pushing rod 13 pulls upward, the connecting frame 15 is inclined, at this time, the lower U-shaped rod 20 contacts the first limiting stopper 21, and keeps the perpendicular state with the connecting frame 15, the upper U-shaped rod 20 is swung under the action of gravity, so that the upper old net clothes 4 collapse downward, and the fish is driven to move to the direction of the new net clothes 4. At the same time, the downward swinging U-shaped rod 20 enters the new net clothes 4, pushes away the new net clothes 4, and facilitates the fish group to enter the new net clothes 4. The pushing rod continues to pull upward until the top of the lower U-shaped rod 20 is exposed to the water surface, the worker pushes the U-shaped rod 20 to make it turn over to the direction of the fixed shaft 11, the old net clothes 4 collapses to the connecting frame 15, the net bag surrounded by the old net clothes 4 is basically collapsed, and the fish group basically enters the new net clothes 4. The U-shaped rod 20 can support the net clothes 4 in the breeding process, and maintain the breeding space in the net clothes 4. During the replacement of the new net clothes 4 and the old net clothes 4, the U-shaped rod 20 also plays a role in supporting the new net clothes 4 and driving the fish group to enter the new net clothes 4.
[0023] Specifically, the clamping mechanism 18 comprises an upper rotating column 22, a lower rotating column 23 and a plug-in rod 24, the upper rotating column 22 is rotationally connected with the outer support frame 3, the lower rotating column 23 is rotationally connected with the clamping frame 16, the outer support frame 3 is provided with an upper cylindrical groove 25, the upper rotating column 22 is rotationally connected in the upper cylindrical groove 25, the upper rotating column 22 is connected with an upper operating rod 32, the upper operating rod 32 is connected with an upper spring piece 28, the outer support frame 3 is provided with a plug-in groove 26 which is in communication with the upper cylindrical groove 25, the upper rotating column 22 is provided with a first avoiding groove 27 which extends to the shaft center from the side, and the first avoiding groove 27 is inclined downward in the natural state; the clamping frame 16 is rotationally connected with the plug-in rod 24, the plug-in rod 24 is provided with a lower cylindrical groove 29, the lower rotating column 23 is rotationally connected in the lower cylindrical groove 29, the lower rotating column 23 is semicircular column, the lower rotating column 23 is connected with a lower operating rod 33, the lower operating rod 33 is connected with a lower spring piece 30, and the plane of the lower rotating column 23 is inclined upward in the natural state. When the inner support frame 2 is lifted upward, the plug-in rod 24 pushes the lower rotating column 23 upward to insert into the plug-in groove 26, because the plane of the lower rotating column 23 is inclined upward in the natural state and the first avoiding groove 27 of the upper rotating column 22 is inclined downward, the intersection of the lower rotating column 23 and the upper rotating column 22 is turned over when they rotate under the mutual pushing, so that the plug-in rod 24 is smoothly inserted into the plug-in groove 26. After being inserted in place, the upper rotating column 22 and the lower rotating column 23 are deflected under the action of the upper spring piece 28 and the lower spring piece 30, that is, a part of the upper rotating column 22 enters into the lower cylindrical groove 29 and a part of the lower rotating column 23 enters into the upper cylindrical groove 25, so that the clamping is completed. When the clamping relationship needs to be released, the staff swings the upper push rod 12 and the lower push rod 13 to drive the upper rotating column 22 and the lower rotating column 23 to rotate, so that the intersection thereof is rotated to the vertical state, at this time, the upper rotating column 22 is located in the upper rotating groove and the lower rotating column 23 is located in the lower rotating groove, and the plug-in rod 24 can be separated from the plug-in groove 26. The clamping mechanism 18 of the present application can be clamped after being connected in place, and it does not need to be clamped after the inner support frame 2 is retracted, and it does not need to lift the inner support frame 2 upward when the clamping is released. Preferably, the upper rotating column and the upper cylindrical groove are gap matched, and the lower rotating column and the lower cylindrical groove are gap matched. The clamping mechanism 18 is non-rigid connection, the inner support frame and the outer support frame can relatively rotate, and it is not easy to damage the clamping mechanism under the action of wind and wave in the sea. Under the action of wind and wave, the bottom of the upper cylindrical groove 25 and the top of the lower cylindrical groove 29 are stressed and rubbed when the inner support frame 2 is pulled downward, and the top of the upper cylindrical groove 25 and the bottom of the lower cylindrical groove 29 are stressed and rubbed when the inner support frame 2 is pushed upward, so that the inner support frame 2 can be limited when it moves upward and downward. The contact surface of the clamping mechanism 18 can relatively move when it is affected by wind and wave, and the relative movement friction can prevent the contact surface from rusting and sticking.
[0024] Specifically, the clamping frame 16 is provided with a second limiting stopper 31 located on both sides of the insertion rod 24, and the insertion rod 24 can rotate within a range of 5-15 degrees. The insertion rod 24 can rotate within a small range, and when the inner support frame 2 is lifted upward, one side of the inner support frame 2 is inclined upward, and after the lower rotating column 23 contacts the upper rotating column 22, further lifting can push the insertion rod 24 to rotate, so that the lower rotating column 23 is aligned with the upper rotating column 22, and the inner support frame 2 can be automatically flipped and aligned when the upper rotating column 22 and the lower rotating column 23 are relatively inclined, thereby facilitating connection.
[0025] Specifically, the length of the first avoiding groove 27 is greater than the length of the lower rotating column 23. After the inner support frame 2 is lifted and inclined, the lower rotating column 23 can be stably inserted into the insertion groove 26 when there is a deviation in the length direction.
[0026] Specifically, the inner support frame 2 is a rectangular frame, and the width of the rectangular frame body is less than 0.5 times the depth of the left rail 9 and the right rail 10. The inner support frame 2 with a large length size and a small width size can always be located underwater during flipping, so that the fish is always underwater during the flipping process, the space underwater is large, the stress of the fish during net changing is reduced, and the damage to the body surface of the fish is reduced.
[0027] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A lifting deep-sea cage structure, characterized in that, The system includes a float (1), an inner support frame (2), an outer support frame (3), a net (4), a track (5), and an anchor pile (6). The float (1) is connected to the anchor pile (6) by a fixing rope (7). The float (1) is fixedly connected to the outer support frame (3). The outer support frame (3) is detachably connected to the inner support frame (2). The outer support frame (3) is provided with the track (5). The track (5) is provided with a slider (8). The inner support frame (2) is slidably connected to the track (5). The inner support frame (2) is provided with the net (4).
2. The lifting deep-sea cage structure according to claim 1, characterized in that, The track (5) includes a left track (9) and a right track (10). The left track (9) and the right track (10) are each provided with a slider (8). The two sliders (8) are connected by a fixed shaft (11). The inner support frame (2) is rotatably connected to the fixed shaft (11). The inner support frame (2) is provided with an upper lever (12) and a lower lever (13) on both sides. The upper lever (12) and the lower lever (13) are both provided with hooks (14).
3. The lifting deep-sea cage structure according to claim 1, characterized in that, The inner support frame (2) includes a connecting frame (15), a snap-fit frame (16), and pins (17). The connecting frame (15) is used to connect the mesh (4). The snap-fit frame (16) is snapped to the outer support frame (3) through a snap-fit mechanism (18). The connecting frame (15) is connected to the snap-fit frame (16) through several pins (17).
4. The lifting deep-sea cage structure according to claim 3, characterized in that, The connecting frame (15) is provided with several rope holes (19).
5. A lifting deep-sea cage structure according to claim 3, characterized in that, A U-shaped rod (20) is rotatably connected inside the connecting frame (15). The rotation center of the U-shaped rod (20) is parallel to the fixed shaft (11). The connecting frame (15) is provided with a first limiting stop (21). The U-shaped rod (20) can rotate from a vertical position to a vertically upward position by passing the side close to the fixed shaft (11). When the U-shaped rod (20) rotates and abuts against the first limiting stop (21), the U-shaped rod (20) is perpendicular to the connecting frame (15).
6. A lifting deep-sea cage structure according to claim 3, characterized in that, The clamping mechanism (18) includes an upper rotating column (22), a lower rotating column (23), and a connecting rod (24). The upper rotating column (22) is rotatably connected to the outer support frame (3), and the lower rotating column (23) is rotatably connected to the clamping frame (16). The outer support frame (3) is provided with an upper cylindrical groove (25), in which the upper rotating column (22) is rotatably connected. The upper rotating column (22) is connected to an upper operating rod (32), which is connected to an upper spring plate (28). The outer support frame (3) is provided with a connecting groove communicating with the upper cylindrical groove (25). 26), the upper rotating column (22) is provided with a first clearance groove (27) extending from the side to the axis. In the natural state, the first clearance groove (27) is inclined downward; the snap-fit frame (16) is rotatably connected to the plug rod (24). The plug rod (24) is provided with a lower cylindrical groove (29). The lower rotating column (23) is rotatably connected in the lower cylindrical groove (29). The lower rotating column (23) is semi-cylindrical. The lower rotating column (23) is connected to the lower operating rod (33). The lower operating rod (33) is connected to the lower spring plate (30). In the natural state, the plane of the lower rotating column (23) is inclined upward.
7. A lifting deep-sea cage structure according to claim 3, characterized in that, The snap-fit frame (16) is provided with a second limiting stop (31), which is located on both sides of the plug-in rod (24). The plug-in rod (24) can rotate within a range of 5 to 15 degrees.
8. A lifting deep-sea cage structure according to claim 1, characterized in that, The length of the first clearance groove (27) is greater than the length of the lower rotating column (23).
9. A lifting deep-sea cage structure according to claim 1, characterized in that, The inner support frame (2) is a rectangular frame, and the width of the rectangular frame is less than 0.5 times the depth of the left track (9) and the right track (10).