Landscape net cage

Abstract

The invention discloses a landscaping net cage and relates to the technical field of fixed fishing gear. The landscaping net cage comprises a top frame, a bottom frame and a sink net. The sink net comprises a bottom net and a side net. The periphery of the bottom net and the lower end of the side net are fixed on the bottom support of the bottom frame. The upper end of the side net is fixed on the top frame. The bottom frame and the top frame can approach each other. When the bottom frame and the top frame approach each other and are in place, the side net forms a sub-net cage with the cage opening between the top frame and the bottom support. A control mechanism is used to drive the bottom frame and the top frame to approach each other, so that the center line of the bottom frame and the top frame remains coincident after the bottom frame and the top frame are in place. The landscaping net cage has the advantages of facilitating people to watch and catch fish in the cage.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to fish farming technology or fixed fishing gear technology, and more specifically to a multi-functional landscaping cage. Background Technology

[0002] Looking at the current state of recreational fishing both domestically and internationally, net cages suitable for recreational fishing cannot automatically form sub-net cages within them that facilitate fish gathering and landscaping, provide easy viewing, and allow for convenient fish retrieval. Patent document CN102132676A discloses an invention patent application entitled "Automatic Fish Management Platform and its Usage Method," which can be used for fish farming, as well as for viewing and recreational experiences. However, due to its lack of the ability to form the aforementioned sub-net cages, it still suffers from the following problems: First, its cost-effectiveness is low when used in shallow waters only a few meters deep; second, it is difficult to use untamed or difficult-to-tame wild fish to create landscaping for people to view and enjoy; third, the outer net of the net cage floating above the water surface creates a poor visual effect; and fourth, it is inconvenient for individuals to independently retrieve fish from the net cage. In open waters, whether it's fish farming, fish attraction, fish training, or fishing, the convenience, efficiency, visual appeal, excitement, and attractiveness of the process significantly impact the diversified development of the aquaculture industry. Therefore, effectively addressing the aforementioned shortcomings of existing technologies is not only a practical need for upgrading the traditional aquatic biological industry but also an urgent requirement for vigorously developing the modern aquatic leisure industry. Summary of the Invention

[0003] The main objective of this invention is to provide a landscaping net cage that can create a more beautiful aquatic fish landscape and facilitate people to quickly catch fish.

[0004] Another objective of this invention is to provide an aquatic net cage that can be used to attract, raise, tame, and observe wild fish.

[0005] To achieve the above-mentioned main objectives, the landscaping net cage provided by the present invention includes a top frame, a base frame, and a submerged net. The submerged net includes a bottom net and a side net, which together form the bottom and side surfaces of the inverted frustum-shaped submerged net. The periphery of the bottom net and the lower end of the side net are both fixed to the bottom support on the base frame, and the upper end of the side net is fixed to the top frame. The base frame and the top frame can approach each other. When they are in position, the side net forms a sub-net cage with its opening located between the top frame and the bottom support. A control mechanism is provided to drive the base frame and the top frame to approach each other, so that the centerline of the base frame and the top frame coincides after they are in position.

[0006] As can be seen from the above scheme, when people use the control mechanism to move the base frame closer to the top frame until the two are basically level, that is, when it is in place, the side net forms a ring-shaped sub-net box between the top frame and the bottom support. This results in a ring-shaped sub-net box with a greatly reduced net depth. As the base frame moves closer to the top frame, the fish in the aquascaping net box are naturally driven into the sub-net box. The sub-net box is close to the edge of the top frame, which makes it convenient for people to observe the fish in the sub-net box from a small boat at a close distance. It also makes it convenient to use fishing gear such as landing nets or even to catch fish by hand. At the same time, the control mechanism also controls the center lines of the base frame and the top frame to remain aligned after they are in place, so that the ring-shaped opening of the sub-net box maintains a consistent width in the circumferential direction.

[0007] A further design includes several dividers on the base frame, one end of which is fixed to the base support, used to divide the opening of the sub-net cage in the circumferential direction. The advantage of this design is that it facilitates observation and harvesting.

[0008] Another further design involves installing a depth limiter around the base support of the frame. The projection of this depth limiter onto the horizontal plane coincides with the opening of the sub-net cage, thus restricting the depth of the sub-net cage from the opening to the bottom. The advantage of this design is that it further facilitates observation and harvesting.

[0009] Another further solution is that the top frame has buoyancy; when the entire landscaping net cage is located on the bottom of the water, the buoyancy can cause the top frame to separate from the base frame from a close-in position and pull the side net to reach the maximum distance relative to the base frame.

[0010] A further improvement is that a buoyancy control body is installed in the base frame; when the buoyancy control body provides the maximum buoyancy value, the top frame is located at or slightly above the water surface, and the side net forms the sub-net box; when the buoyancy control body provides the minimum buoyancy value, the entire landscaping net box is underwater.

[0011] Another further embodiment includes a guide float and a cover net fixed to the guide float; the guide float is connected to the base frame via the control cable of the control mechanism, and the top frame is located vertically between the guide float and the base frame; the projected area of ​​the cover net on the horizontal plane is the same as the area of ​​the upper base of the inverted cone, and the cover net has several fishing ports arranged circumferentially near the frame edge of the guide float.

[0012] A further solution includes a locking mechanism for locking or unlocking the base frame and the top frame after they are close together and in place. When the locking mechanism is locked, the base frame and the top frame cannot be separated from each other. When the locking mechanism is unlocked, the base frame and the top frame can be separated from each other.

[0013] Another further embodiment is that the upper surface of the bottom support is provided with a channel, and a guardrail is provided on the side of the channel away from the bottom net.

[0014] A further embodiment is that the underwater net also includes a cover net, which forms the upper bottom surface of the inverted truncated cone. The periphery of the cover net is fixed to the top frame, and several fishing ports are provided at the frame edge adjacent to the top frame.

[0015] Another further option is that the top frame is an annular floating platform that can float on the water surface, and the power source of the control mechanism is located on the floating platform.

[0016] Another further option includes an annular floating platform that can float constantly on the water surface. The floating platform is located directly above the top frame and is connected to the top frame via a control cable of the control mechanism. The power source of the control mechanism is located on the floating platform.

[0017] The main concept of the technical solution of the present invention will be described below with reference to the accompanying drawings:

[0018] See Figure 1 and Figure 2 , Figure 1 This is a side view of the landscaping net cage 1, which is used to illustrate the principle of the main solution of the present invention. Figure 2 yes Figure 1 A top view. The landscaping net cage 1 has a circular top frame 100 and a circular base frame 200, as well as a submerged net 300 with the top frame 100 as the opening of the cage. The submerged net 300 is composed of a bottom net 310 and a side net 320. The circular bottom net 310 is fixed to the base frame 200 around its perimeter. Therefore, in this design, the base frame 200 also serves as a bottom support. The bottom support is the component used to support the perimeter of the bottom net 310 in this invention. The lower end of the side net 320 is also fixed to the bottom support, while the upper end is fixed to the top frame 100. Figure 1 and Figure 2 In this state, the submerged net 300 has an inverted frustum shape, with the bottom net 310 being the lower base of the inverted frustum and the side net 320 being the side surface of the inverted frustum.

[0019] See Figure 3 , Figure 3 yes Figure 2 The A-A sectional view shows the base frame 200 and top frame 100 approaching each other to a preset value. In this embodiment, the preset value is the base frame 200 being flush with the bottom of the top frame 100. Ideally, the preset value is zero, meaning the base frame 200 and top frame 100 are on the same plane. In different embodiments described later, due to different specific structures, the preset value is not the same; it could be the base frame 200 being above the top frame 100, or the two being level in the height direction. Under the drive and control of the operating mechanism, the landscaping net box 1 reaches... Figure 3When in the shown position, the center line of the base frame 200 and the center line L of the top frame 100 are aligned. The side net 320 of the aquascape net cage 1 forms a sub-net cage 330 with a ring-shaped opening. That is, the opening of the aquascape net cage 1 changes from the previous circle to the ring shape of the sub-net cage 330. In this way, the fish in the aquascape net cage 1 can be driven into the sub-net cage 330. Since the sub-net cage 330 is much shallower than the original inverted frustum-shaped underwater net 300 and is closer to the edge of the top frame 200, it makes it possible for people to observe and catch fish at the opening of the sub-net cage 330.

[0020] When the size of the landscaping net cage 1 of the present invention is too large in the planar direction, the fish located in the sub-net cage 330 will cause inconvenience for viewing and catching, because the fish will gather in the direction away from people. Therefore, the present invention has a further technical solution to this problem. The main concept of the further technical solution of the present invention is described below:

[0021] See Figure 4 and Figure 5 , Figure 4 This is a side view of another embodiment of the landscaping net cage 1 of the present invention. Figure 5 yes Figure 4 The B-B sectional view in the diagram is mainly used to reflect the structural design of the base frame 200. In this design, the base frame 200 mainly consists of a circular bottom support 210 and a bottom frame 220 with the same dimensions as the top frame 100. Four rod-shaped separators 230 are set between the two, with both ends of the separators 230 fixed to the bottom frame 220 and the bottom support 210, respectively. The separators 230 are used to divide the sub-net boxes 330 circumferentially. In addition, a recessed depth limiting member 340 is also set between the bottom support 210 and the bottom frame 220. The depth limiting member 340 is used to regulate the depth of the sub-net box 330 formed by the edge net 320.

[0022] See Figure 6 , Figure 6 This is a side view of the structure after the sub-net cage 330 is formed. Figure 6Because the sub-net cage 330 is located within the depth-limiting member 340, its outline is shown as a dashed line. Under the operation of the control mechanism, when the base frame 200 and the top frame 100 approach each other to abutment, the side net 320 is blocked by the separator 230 and constrained by the depth-limiting member 340, thus forming four depth-limited sub-net cages 330. Therefore, the opening of each sub-net cage 330 is a quarter-circle shape, with the length of the opening being one-quarter of the circumference, and the width of the opening being the same. People can selectively and relatively closely observe or catch the fish in each sub-net cage 330. Obviously, if the aquascape net cage is larger, the problem of inconvenience in observation and catching can be solved by appropriately increasing the number of separators 230. The depth limiter 340 can be made of either a rigid or flexible net. From the perspective of reducing resistance, its mesh count should be much larger than that of the 300-mesh diving net. From the perspective of facilitating viewing and fishing, its mesh count should not be so large that the fish that need to be viewed and fished can pass through it.

[0023] Obviously, in this invention, as long as the subnet cage 330 is shallow enough, the depth limiting member 340 is not necessary. Attached Figure Description

[0024] Figure 1 This is a side view structural diagram of the main scheme of the landscaping net cage of the present invention;

[0025] Figure 2 yes Figure 1 Top view;

[0026] Figure 3 yes Figure 2 A-A sectional view of the sub-nets formed by the side nets of the central landscaping net cage;

[0027] Figure 4 This is a side view of another embodiment of the landscaping net cage of the present invention;

[0028] Figure 5 yes Figure 4 B-B sectional view;

[0029] Figure 6 This is a side view of the sub-net cage structure after it has been formed according to another embodiment of the present invention;

[0030] Figure 7 This is a three-dimensional structural schematic diagram of the first embodiment of the present invention;

[0031] Figure 8 yes Figure 7 Enlarged view of part C in the image;

[0032] Figure 9 yes Figure 7 Enlarged view of part D in the image;

[0033] Figure 10 yes Figure 9 A three-dimensional structural diagram of the pneumatic lock;

[0034] Figure 11 This is a three-dimensional structural schematic diagram of the second embodiment of the present invention;

[0035] Figure 12 yes Figure 11 Enlarged view of part E in the image;

[0036] Figure 13 This is a three-dimensional sectional view of the pneumatic lock;

[0037] Figure 14 yes Figure 11 Enlarged view of part F in the image;

[0038] Figure 15 It is a 3D diagram of a cylinder;

[0039] Figure 16 This is a three-dimensional structural schematic diagram of the third embodiment of the present invention;

[0040] Figure 17 This is a three-dimensional structural schematic diagram of the fourth embodiment of the present invention;

[0041] Figure 18 This is a three-dimensional structural schematic diagram of the fifth embodiment of the present invention;

[0042] Figure 19 This is a three-dimensional structural schematic diagram of the sixth embodiment of the present invention;

[0043] Figure 20 This is a three-dimensional structural schematic diagram of the seventh embodiment of the present invention;

[0044] Figure 21 This is a three-dimensional structural diagram of the sub-net cage formed according to the seventh embodiment of the present invention;

[0045] Figure 22 This is a three-dimensional structural schematic diagram of the eighth embodiment of the present invention.

[0046] The components include: 1 landscaping net cage; 100 top frame; 200 base frame; 210 bottom support; 211 bottom support cable; 220 bottom frame; 221 bottom frame cable; 230 separator; 240 strong frame; 250 buoyancy control body; 251 quick exhaust port; 252 drainage port; 253 air injection port; 260 center pole; 261 counterweight; 270 passageway; 271 guardrail; 272 ladder clamp; 300 underwater net; 310 bottom net; 320 side net; 330 sub-net cage; 340 depth limiting component; 350 cover net; 351 fishing port; 360 cover net float; 370 slip ring; 400 control cable; 400A control cable. Control cable 400B; Guide wheel 401; Guide wheel 402; Guide wheel 402A; Cable float 403; Cable counterweight 404; Pneumatic lock 500; Lock hole 501; Trumpet mouth 502; Positioning plate 503; Lock tongue 504; Lock tongue cable 5041; Guide wheel 5042; Compression spring 5043; Lock tongue seat 5044; Air port 505; Cylinder 506; Piston head 507; Cylinder bracket 508; Guide float frame 600; Feeding pipe 610; Float 700; Base frame winch 701; Top frame winch 702; Reef area 800; Column 810; Cable 820.

[0047] The present invention will be described in detail below with reference to the embodiments and accompanying drawings. Detailed Implementation

[0048] In the following description of the various embodiments, the focus will be on the structural features closely related to the present invention or the differences from the previous examples, such as the anchoring mechanism of the landscaping net cage 1, the power source for sinking and floating control, and the conventional structure of existing net cages. Those skilled in the art can fully implement these features in accordance with the prior art CN102132676A and the design and process that should be known and understood.

[0049] First Embodiment

[0050] See Figure 7 , Figure 7 This is a perspective view of the first embodiment. Figure 7 The landscaping net cage 1 is in an anchored state with the top frame 100 floating on the water surface. The top frame 100 is a square frame with buoyancy. The outline of the base frame 200 projected onto the plane where the top frame 100 is located is also a square of the same size.

[0051] The top frame 100 is composed of four buoyant tubular components fixed end to end. The base frame 200 has four strong skeletons 240 forming a cross shape. The end of each strong skeleton 240 also functions as a separator 230 in this example. A buoyancy control body 250 is fixed at the intersection of the cross. Four bottom frame cables 221 are attached to each pair of the four free ends of the strong skeletons 240, forming the bottom frame 220 in this example. Four bottom support cables 211 are also attached to the strong skeletons 240, forming the bottom support 210 in this example. A separator rod serving as a separator 230 is fixed between the bottom support cables 211 and the bottom frame cables 221 on each side of the square. Figure 7 Only one separator 230 is shown, and the other three are omitted. In addition, if there is a need to limit the depth of the sub-cage, a depth-limiting net can be added as a depth-limiting component 340. The two opposite sides of the depth-limiting net are fixed to the bottom support cable 211 and the bottom frame cable 221, respectively, and the other two sides are fixed to the adjacent strong frame 240.

[0052] The side net 320 is a sinking net, with its upper end fixed to the top frame 100. The lower end of the side net 320 and the perimeter of the bottom net 310 are both fixed to the bottom support 210. In this example, the bottom net 310 is fixed to the upper surface of the strong frame 240. Obviously, it can also be fixed to the lower surface of the strong frame 240. When it is fixed to the lower surface of the strong frame 240, after the bottom frame 200 and the top frame 100 are close to each other and in place, the fish in the subnet 330 must not be able to cross the bottom support cable 211 and swim back to the area of ​​the bottom net 310.

[0053] The center rod 260 is located on the centerline of the base frame 200. Under ideal conditions with no wind or waves, the center rod 260 is also located on the centerline of the top frame 100. The bottom end of the center rod 260 is fixed to the top of the rigid tank body, which serves as the buoyancy control body 250. The top of the buoyancy control body 250 is equipped with a fast exhaust port 251 (see...). Figure 9 The lower part is provided with a pair of symmetrically arranged drain outlets 252. A T-shaped pipe located inside the buoyancy control body 250 has two symmetrical openings connected to the drain outlets 252. The bottom opening of this T-shaped pipe is located at the bottom of the buoyancy control body 250. Counterweight 261 (see...) Figure 8 It can slide up and down along the central rod 260. The top of the counterweight 261 is fixed with one end of four control cables 400 of the same length. Each control cable 400 passes through a top pulley 401 set at the top of the central rod 260 (see...). Figure 8 The guide pulley 402 is installed in the fixed end of the strong frame 240, and the guide pulley 402A is installed in the cantilever end of the strong frame 240 and then fixed to the corner of the top frame 100 corresponding to the guide pulley 402A.

[0054] The counterweight 261, the buoyancy control body 250, the control cable 400, and various pulleys constitute the control mechanism of this example. The control method and process will be described in detail later.

[0055] See Figure 8 , Figure 8 yes Figure 7 The enlarged view of section C shows four control cables 400 evenly distributed and fixed at the top of the counterweight 261. The four top pulleys 401 are positioned in the same direction as the four strong frame members, which can correct the relative angle generated when the control cables 400 pull the base frame 200 closer to the top frame 100. The counterweight 261 is a cylindrical body with two symmetrically arranged locking holes 501 that penetrate the cylindrical wall radially. At the bottom of the cylindrical wall of the counterweight 261, two symmetrically arranged flared openings 502 are also provided. The line connecting the two flared openings 502 radially is perpendicular to the line connecting the two locking holes radially.

[0056] See Figure 9 , Figure 9 yes Figure 7 In the enlarged view of part D, the cylinder 506 of the pneumatic lock 500 is fixed to the lower end of the central rod 260, and the center line of the cylinder 506 is collinear with the center line of the central rod 260. The lower end of the piston head 507 of the cylinder 506 is a sealing plug, and the piston head 507 is directly opposite the exhaust port 251 on the top of the float control body 250 below. The top of the float control body 250 is also provided with an air injection port 253. A pair of positioning plates 503 are symmetrically arranged on the upper part of the pneumatic lock 500, which cooperate with the aforementioned flared mouth 502 to constrain the counterweight 261 so that the lock hole 501 is located in a specified position. A pair of radially retractable locking tongues 504 are provided at the end of the cylinder 506 away from the piston head 507. When the lock hole 501 is in the specified position, the lock hole 501 and the locking tongues 504 are collinear. The air port 505 of the cylinder 500 is connected to a compressed air source.

[0057] See Figure 10 , Figure 10 This is a three-dimensional structural diagram of the pneumatic lock 500. The pneumatic lock 500 includes a pair of latches 504 arranged symmetrically along the radial direction of the cylinder 506, which mate with the aforementioned lock hole 501. The latches 504 can slide and extend relative to the latch seat 5044. To illustrate the telescopic structure, Figure 10 The left side of the locking tongue seat 5044 and a fixing plate are omitted. Two locking tongue cables 5041 are symmetrically fixed on the piston head 507. The other end of the locking tongue cable 5041 passes around the guide wheel 5042 and through the compression spring 5043 and is fixed to the tail end of the locking tongue 504. The front end of the piston head 507 is a sealing plug that cooperates with the aforementioned fast exhaust port 251.

[0058] The pneumatic lock 500, counterweight 261, and control cable 400 constitute the locking mechanism in this example.

[0059] The following describes the change process between various states of the first embodiment of the present invention. The side net 320 and the bottom net 310 constitute the side and bottom surfaces of a generally inverted frustum-shaped submerged net 300. In this example, due to the structural shape of the strong frame 240, the bottom net 310 is not in a plane, but forms the side surface of a regular square pyramid. Since the height of the pyramid is very small, the side surface of the square pyramid can be regarded as a plane. Figure 7 In this state, the float control body 250 is filled with water because the fast exhaust port 251 is open. The base frame 200 is placed on the bottom of the water, and the top frame 100 floats on the water surface. That is, the landscaping net cage 1 in this example is suitable for waters with a depth equal to or less than the depth of the submersible net 300. Figure 10In the pneumatic lock 500, the cylinder 506 is in the retracted piston head 507 state. When it is necessary to observe and catch fish in the underwater net, firstly, the cylinder 506 is activated to extend the piston head 507. On one hand, the sealing plug on the piston head 507 closes the vent 251, and on the other hand, the piston head 507 simultaneously pulls a pair of locking tongue cables 5041, thereby causing the pair of locking tongues 504 to retract against the restoring force of the compression spring 5043. Then, high-pressure gas is injected into the float control body 250 through the air injection port 253, causing the water in the float control body 250 to be discharged from a pair of drain ports 252 and discharged into the drain port 253. When the air is released, i.e., when the float control body 250 provides the maximum buoyancy value, the base frame 200 rises to contact the top frame 100. During this process, the falling counterweight 261 just reaches its flared opening 502 and is restrained and positioned by the positioning plate 503. At the same time, the side net 320 is placed on the bottom support cable 211 and the separator 230, thus forming eight sub-net boxes 330 whose opening is composed of the bottom support cable 211, the separator 230, the bottom frame cable 221, and the free end of the strong frame 240. During this process, the fish in the aquascaping net box 1 will automatically enter the sub-net boxes 330 for people to observe or catch. In addition, during the process of the base frame 200 rising, the counterweight 261 slides down the center rod 260 by gravity, thereby pulling the four control cables 400, so that the base frame 200 and the top frame 100 are relatively close, until they are relatively untwisted and located at the position where the center lines of the lock hole 501 and the lock tongue 504 are collinear. After completing all the fish aquascaping work, when it is necessary to sink the aquascaping net cage 1 to the bottom of the water, firstly, high-pressure air is discharged from the air port 505, causing the piston head 507 of the cylinder 506 to retract. At this time, the locking tongue 504 extends into the locking hole 501 under the restoring force of the compression spring 5043, thereby locking the top frame 100 and the base frame 200 together. At the same time as the piston head 507 retracts, the quick exhaust port 251 is also opened. Water outside the float control body 250 enters through the drain port 252, and air inside the float control body 250 is discharged through the quick exhaust port 251. When the float... When all the gas inside the control body 250 is expelled, i.e., when it provides the minimum buoyancy value, the entire aquatic net cage 1 is underwater. In this state, people can throw fish bait directly above the water area where the aquatic net cage 1 is located to attract fish to feed. At the appropriate time, the pneumatic lock 500 is operated. First, the piston head 507 extends, and the locking tongue 504 exits from the locking hole 501. After unlocking, the top frame 100 has buoyancy, and its buoyancy overcomes the weight of the counterweight 261 and rises to the surface, surrounding the feeding fish inside the aquatic net cage 1. At this time, the aquatic net cage 1 returns to its original position. Figure 7 The state at that time.

[0060] In this example, the rapid air vent 251 is only provided so that the aquascape net cage 1 can sink quickly to the bottom in the locked state. When this design requirement is not present, the rapid air vent 251 and the sealing plug on the piston head 507 are not necessary. Without the rapid air vent 251 and the sealing plug, the operation differs from the above as follows: After all the fish gathering and aquascape creation work is completed, air is extracted through the air inlet 253 to remove the gas from the float control body 250. Obviously, this makes the sinking speed of the aquascape net cage 1 relatively slower. However, this implementation allows the aquascape net cage 1 to be used in deeper waters, for example... Figure 1 The state shown is different from the above. The base frame 200 is not located on the bottom of the water. Instead, because a certain amount of gas is still retained in the float control body 250, the top frame 100 floats on the water surface while the base frame 200 is suspended in the water. In other words, the float control body 250 can achieve precise depth determination of the landscaping net cage 1 by injecting and venting gas.

[0061] In this example, the buoyancy of the top frame 100 should be sufficient to lift the counterweight 261 and raise it relative to the base frame 200. When the float control body 250 provides its maximum buoyancy, it should be able to keep the top frame 100 above the water surface or slightly above it; when it provides its minimum buoyancy, it should be able to submerge the entire aquascape cage 1 underwater. Additionally, an automatic feeding device and a fish-attracting light can be installed at the top of the center rod 260.

[0062] Second Embodiment

[0063] See Figure 11 , Figure 11 This is a three-dimensional structural diagram of the second embodiment of the present invention. The similarities between this example and the first embodiment will not be repeated; only the differences will be explained below. The main difference between this example and the previous example is the control mechanism. In this example, the two ends of the four control cables 400 pass through cable holes located at the ends of the reinforcing frame 240 and at the corners of the top frame 100, respectively. The upper ends are fixed to the tension cable float 403, and the lower ends are fixed to the tension cable counterweight 404. Thus, the control cables 400, which are always in a taut state, control the approach between the base frame 200 and the top frame 100, and there is no twisting between them when they are in position. At the four corners of the top frame 100, there are also locking holes 501 corresponding to the locking tongue 504 of the pneumatic lock 500 after the base frame 200 and the top frame 100 are in position.

[0064] See Figure 12 , Figure 12 yes Figure 11 The enlarged view of part E shows that each cantilever end of the strong frame 240 is equipped with a pneumatic lock 500, and each of the four locking tongue cables 5041 is fixed at one end to the tail ring of the locking tongue 504.

[0065] See Figure 13 , Figure 13This is a three-dimensional sectional view of the pneumatic lock 504 in this example. The lower end of the latch seat 5044 is fixed on the strong frame 240. The compression spring 5043 is restricted between the shoulder of the latch 504 and the rear wall of the latch seat 5044 cavity. The tail end of the latch 504 that protrudes from the rear wall is a tail ring for fixing the latch cable 5041.

[0066] See Figure 14 , Figure 14 yes Figure 11 The enlarged view of part F shows that the center rod 260 has been omitted in this example. Cylinder 506 is fixed to cylinder bracket 508, and the lower end of cylinder bracket 508 is fixed to float control body 250. Four guide wheels 401 are provided on cylinder bracket 508. One end of the locking tongue cable 5041 is fixed to the piston head 507 of cylinder 506, and the other end passes through the corresponding guide wheel 401 and the guide wheel 402 fixed on top of float control body 250 before being fixed to... Figure 13 The tail ring of the 504 locking tongue.

[0067] See Figure 15 , Figure 15 This is a 3D view of cylinder 506, which is fixed to cylinder bracket 508 with piston head 507 facing exhaust port 251.

[0068] In this example, the locking mechanism mainly consists of cylinder 506, locking tongue cable 5041, and pneumatic lock 500, while the quick exhaust port 251 is opened and closed by cylinder 506. However, the locking mechanism and the opening and closing of the quick exhaust port 251 in this example can also be changed as follows: the pneumatic lock 500 can be replaced by an existing separately controlled normally closed pneumatic lock or normally closed electromagnetic lock, and the quick exhaust port 251 can be opened and closed by an existing separately controlled normally open pneumatic valve or normally open electromagnetic valve after extending a short pipe. The control mechanism can also be changed in the following three ways. The first change is that the control cable 400 can be replaced by a guide rod that passes directly through the cable hole at the end of the strong frame 240 and the cable hole at the corner of the top frame 100. When the guide rod is a submerged rod, it can be inserted into the bottom surface layer for fixation. If it is a floating rod, a limit clip can be set at each end to prevent it from sliding out of the cable hole. The second variation: In intensive fish farming applications, when using four anchors and eight anchor cables for mooring, all control cables 400, tension floats 403, and tension counterweights 404 can be omitted. Each anchor is tied to one end of two anchor cables. The other end of one anchor cable is fixed to the corner of the top frame 100, and the other end of the other anchor cable is fixed to the corner of the base frame 200. The two anchor cables are kept to be roughly the same length when the base frame 200 floats up and approaches the top frame 100. The other three anchors and six anchor cables are set at the other three corners of the landscaping cage 1. This also ensures that the center lines of the base frame 200 and the top frame 100 remain aligned when they are close together. The third variation: The cable float 403 adopts a rigid float tube. The lower section of the float tube passes through the relatively enlarged cable hole at the corner of the top frame 100 and is located above the base frame 200. The length of the float tube on the base frame 200 below the top frame 100 is slightly less than the distance between the top frame 100 and the base frame 200. The lower end is a cone and is connected to the control cable 400.

[0069] The operation method and various states of the landscaping net cage 1 in this example are basically the same as those in the first embodiment, and will not be described in detail again.

[0070] Third Embodiment

[0071] See Figure 16 , Figure 16 This is a three-dimensional structural diagram of the third embodiment of the present invention. Figure 6 The top frame 100 and the base frame 200 are locked together. The main difference between this example and the second embodiment is the different control mechanism. A guide float frame 600, a cover net 350, and a feeding tube 610 are added to replace the cable float 403. The guide float frame 600 has buoyancy, and the periphery of the cover net 350 is fixed to the guide float frame 600. Unlike the second embodiment, when the float control body 250 is filled with water, the guide float frame 600 also sinks completely to the bottom. Eight fishing ports 351 are provided near the frame edge of the cover net 350.

[0072] One possible variation of the control mechanism in this example is to replace the control cable 400 with guide rods, with the upper and lower ends of the guide rods fixed to the corners of the guide float frame 600 and the base frame 200, respectively. This allows the top frame 100 to slide up and down between the guide float frame 600 and the base frame 200 along the four guide rods. With this variation, the cover net does not need to have a fishing port 351.

[0073] This example uses Figure 16 When the fish are fully submerged underwater, or when only the guide float 600 is floating on the surface, bait can be thrown into the base frame 200 through the feeding tube 610. At the appropriate time, the lock between the top frame 100 and the base frame 200 is released, and the top frame 100 rises directly to the guide float 600 by its buoyancy, surrounding the fish in a fully enclosed underwater net 300 composed of a bottom net 310, a side net 320, and a cover net 350. When viewing and fishing are required, air is injected through the float control body 250 to form a subnet cage 330, and the fish in the subnet cage 330 can be caught by opening the fishing port 351 or directly.

[0074] Fourth embodiment

[0075] See Figure 17 , Figure 17 This is a three-dimensional structural schematic diagram of the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is that the locking mechanism is eliminated. That is, this embodiment does not require the setting of a key hole, a pneumatic lock and a control cylinder for the pneumatic lock. In addition, the guide float frame 600 is eliminated based on the third embodiment, and the cover net is directly laid on the top frame 200. Furthermore, the top frame 200 in this embodiment can also be a flexible buoyancy frame. In addition, the upper end of the control cable 400 is fixed to the corner of the top frame 200.

[0076] The difference between this example and the third example is that it lacks the function of trapping wild fish and is only used for domestication, ornamental purposes, and fish fishing.

[0077] Fifth embodiment

[0078] See Figure 18 , Figure 18This is a three-dimensional structural diagram of the fifth embodiment of the present invention. The difference between this invention and the second embodiment is that the buoyancy control body 250 and the pneumatic lock 500 are omitted, and the weight of the top frame 100 and the base frame 200 is greater than the buoyancy. An annular floating platform 700 capable of constantly floating on the water surface is added. The floating platform 700 is located directly above the top frame 100. Eight winches serving as power sources are installed at each of the four corners of the floating platform 700: four base frame winches 701 and four top frame winches 702. The control cable 400A of the base frame winches 701 is fixed at the far end to the corner of the base frame 200, and the control cable 400B of the top frame winches 702 is fixed at the far end to the corner of the top frame 100. The buoyancy of the floating platform 700 is sufficient to support the total weight of people viewing and fishing in the aquatic net cage 1, including the railings and other items installed on the deck of the floating platform 700. Figure 18 The state shown is that both the top frame 100 and the bottom frame 200 are submerged at the bottom of the water. When the time is right to attract fish, all the top frame winches 702 are operated to quickly raise the top frame 100, thereby pulling up the side net 320, so that the attracted fish are surrounded in the submerged net 300. If it is necessary to observe and catch them, all the bottom frame winches 701 are operated to raise the bottom frame 200. When the bottom frame 200 reaches close to the top frame 100 and is in place, people standing on the floating platform 700 can observe the fish in the subnet cage 330 and catch them.

[0079] Sixth Embodiment

[0080] See Figure 19 , Figure 19 This is a three-dimensional structural diagram of the sixth embodiment of the present invention. The difference between this example and the fifth embodiment is that the top frame 100 is configured as a ring-shaped floating platform 700 that can float constantly on the water surface. Four base frame winches 701, serving as power sources, are mounted on the floating platform 700 and are connected to the corners of the base frame 200 via control cables 400A. This example is suitable for fish farming and landscaping.

[0081] Seventh Embodiment

[0082] See Figure 20 , Figure 20 This is a three-dimensional structural schematic diagram of the seventh embodiment of the present invention. Figure 20The diagram highlights the structural differences between this example and the second embodiment, while the internal structure of the base frame 200 is omitted. The main difference between this example and the second embodiment is that the upper surface around the base support 210 forms a walkway 270, and a guardrail 271 is provided on the side of the walkway 270 away from the bottom netting 310. Furthermore, the upper surface of a section at the end of the reinforcing frame 240 also forms a walkway 270. A stepped locking mechanism 272, with a lower outer edge and a higher inner edge, is also provided at the cantilever end of the reinforcing frame 240 to allow the base frame 200 to engage with the corner of the top frame 100 when they are close together, preventing undesirable misalignment when their centerlines coincide. Multiple sets of slip rings 370 and multiple parallel flexible cables serving as separators 230 are also provided on each side net 320 between the top frame 100 and the bottom support 210. The flexible cables are located on the inner or outer side of the side net 320. One end of each flexible cable is fixed to the top frame 100, and the other end passes through a set of slip rings 370 and is then fixed to the bottom support 210. The side net 320 is as follows... Figure 20 In its fully extended state, the flexible cable will be fully extended and tightly adhered to the edge netting 320. For clarity, Figure 20 Only the outline of the edge net 320 and the flexible cables and corresponding slip rings 370 on one side of the edge net 320 are shown, while the flexible cables and slip rings 370 on the other three side nets 320 are omitted. In this example, the corner components and side components of the top frame 100 can be flexibly connected by chains. If a hydraulic pipeline is used to transport feed, the feed pipe can pass through the edge net 320 or the bottom net 310 into the submerged net 300. This example is mainly used for large-scale floating fish farming aquaculture, therefore the locking mechanism has been eliminated compared to the second embodiment.

[0083] See Figure 21 , Figure 21 This is a three-dimensional structural diagram of the seventh embodiment of the present invention when a sub-net cage is formed on the water surface. Figure 21 The diagram shows the state after the base frame 200 and top frame 100 are in close proximity and in place, and also shows the specific shape of the flexible cables on each side net 320 after they deform with the side net 320. From Figure 21 It can be seen that when the base frame 200 is fully submerged, the fish in the submerged net 300 will be forced to swim into the sub-net cage. Workers can then access the channel 270 on the bottom support 210 through the channel 270 at the end of the strong frame 240. At the channel 270 or at the top frame 100, they can tighten or loosen the flexible cable from one end to adjust its length, simultaneously decreasing or increasing the depth of the sub-net cage 330 formed by the side net 320. Therefore, by sequentially tightening the flexible cable, all the fish in the sub-net cage can be orderly driven into a specific localized area within the sub-net cage. Furthermore, from... Figure 21It can also be seen that the ladder interface 272 has two functions: first, when the base frame 200 and the top frame 100 are close together and in place, the ladder interface 272 can clamp the top frame 100 onto the base frame 200; second, when the buoyancy provided by the buoyancy control body is large enough, it can protect the top frame 100 from structural damage caused by excessive lifting of the base frame 200.

[0084] Eighth embodiment

[0085] See Figure 22 , Figure 22 This is a three-dimensional structural diagram of the eighth embodiment of the present invention when both the underwater net and the cover net are fully deployed. The main differences between this embodiment and the seventh embodiment are: 1. A reef area 800 composed of multiple layers of net is added above the bottom net; 2. A cover net 350 and a cover net float 360 are added to the top frame 100. The reef area 800 is equipped with multiple vertical pillars 810 and multiple cables 820 to support the multiple layers of net, thereby forming the reef area 800. The pillars 810 and cables 820 can be integrated with the base frame 200. Moreover, some vertically connected fish channels can be set between the multiple layers of net reef, which will provide a good habitat for intensively farmed reef-loving fish. Figure 22 As can be seen, when the base frame 200 is raised to the water surface, the pillars 810 and cables 820 of the reef area 800 will completely lift the cover net 350, allowing people to enter the cover net 350 through the fishing port 351 for normal operations. This example is mainly used for large-scale submerged fish farming aquaculture. The most significant feature of the seventh and eighth embodiments is that the channel 270 is set on the base frame 200. This facilitates fishing and significantly reduces the stress load on the aquaculture cage 1 when it is on the water surface. Compared with existing deep-water cages where the channel is set on the top frame of the cage, the resistance to wind and waves is greatly improved.

[0086] Other implementation methods

[0087] The projected outlines of the top frame 100, bottom support 210 and base frame 200 on the horizontal plane can be square, rectangle, regular polygon or circle. Therefore, the volume enclosed by the submerged net 300 in the unfolded state can be an inverted square pyramid, an inverted multi-faceted pyramid or an inverted circular pyramid, which can also achieve the purpose of the present invention.

[0088] In the fifth or sixth embodiment, the power source can also be a cylinder and a corresponding pulley block instead of a winch. The pulley block is set to allow the control cable to change direction and reach the base frame and top frame, and on the other hand, to prevent the cylinder stroke from being too long.

Claims

1. A landscaping net cage, comprising a top frame, a base frame, and a submerged net, wherein the submerged net comprises a bottom net and a side net, the bottom net and the side net forming an inverted frustum-shaped bottom surface and side surface, the periphery of the bottom net and the lower end of the side net are both fixed to the bottom support on the base frame, and the upper end of the side net is fixed to the top frame; Its features are: When the top frame is on the water surface, the base frame can rise and approach the top frame. When the base frame rises to the water surface and approaches the top frame until the two are basically at the same height, that is, when it is in place, the side net forms a sub-net box with the opening located between the top frame and the bottom support and the net depth and area are greatly reduced. The fish in the underwater net are driven into the sub-net box during the process of the base frame rising. The control mechanism is used to drive the base frame and the top frame closer together and correct the relative angle during the approach process, so that the center line of the base frame and the center line of the top frame are aligned after the base frame is in place.

2. The landscaping net cage according to claim 1, characterized in that: The base frame also includes several partitions, one end of which is fixed to the bottom support. When the base frame and the top frame approach each other to abut, the side net is placed on the partition. The partition divides the opening of the sub-net box in the circumferential direction and divides the sub-net box into several corresponding sub-net boxes.

3. The landscaping net cage according to claim 1, characterized in that: The base frame is also provided with a depth limiting component around the bottom support. The projection of the depth limiting component on the horizontal plane coincides with the opening of the sub-net cage, which is used to limit the depth of the sub-net cage from the opening to the bottom.

4. The landscaping net cage according to claim 1, characterized in that: The control mechanism includes a float control body disposed in the base frame.

5. The landscaping net cage according to claim 4, characterized in that: The top frame has buoyancy; When the entire landscaping net cage is located on the bottom of the water, the buoyancy can cause the top frame to separate from the base frame from a close-in position and pull the side net to reach the maximum distance relative to the base frame. When the buoyancy control body provides the maximum buoyancy value, the top frame is located at or slightly above the water surface, and the side net forms the sub-net box; When the buoyancy control body provides the minimum buoyancy value, the landscaping net cage is partially or entirely underwater.

6. The landscaping net cage according to claim 4, characterized in that: The control mechanism also includes a counterweight, control cables, and pulleys. The central rod is located on the center line of the base frame and also on the center line of the top frame. The bottom end of the central rod is fixed to the top of the rigid tank body, which serves as the buoyancy control body. The counterweight can slide up and down along the central rod. The top of the counterweight is fixed with one end of four control cables of the same length. Each control cable passes in sequence through a top pulley set at the top of the central rod, a guide pulley set in the fixed end of the strong frame of the base frame, and a guide pulley set in the cantilever end of the strong frame, and is then fixed to the corner of the top frame corresponding to the guide pulley in the cantilever end of the strong frame.

7. The landscaping net cage according to claim 5, characterized in that: It also includes a guide float frame and a cover net fixed to the guide float frame; The guide float is connected to the base frame via the control cable of the control mechanism, and the top frame is located vertically between the guide float and the base frame; The projected area of ​​the cover net on the horizontal plane is the same as the area of ​​the upper base of the inverted cone. Several fishing ports are provided circumferentially on the cover net near the frame edge of the guide float.

8. The landscaping net cage according to any one of claims 1 to 7, characterized in that: It also includes a locking mechanism for locking or unlocking the base frame and the top frame after they are close together and in place. When the locking mechanism is in the locked state, the base frame and the top frame cannot be separated from each other; when the locking mechanism is in the unlocked state, the base frame and the top frame can be separated from each other.

9. The landscaping net cage according to any one of claims 1 to 3, characterized in that: The top frame is an annular floating platform that can float constantly on the water surface, and the power source of the control mechanism is located on the floating platform.

10. The landscaping net cage according to any one of claims 1 to 3, characterized in that: It also includes an annular floating platform that can float constantly on the water surface. The floating platform is located directly above the top frame and is connected to the top frame via a control cable of the control mechanism. The power source for the control mechanism is located on the floating platform.

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