A type of Culter alburnus farming equipment

Abstract

This invention relates to fish farming, and more particularly to a farming device for Culter alburnus, comprising a support frame, a farming net mounted on the support frame, floats on the support frame, and eight farming nets in total. A fixed mounting frame is fixedly connected to the left side of the support frame, and a first rotating frame symmetrically arranged front and rear is rotatably connected to the bottom of the fixed mounting frame. A U-shaped frame is slidably connected between the first rotating frames. A left-side net is placed between the top left side of the U-shaped frame and the bottom left side of the fixed mounting frame. A second lifting block is connected to the bottom outer net between the two U-shaped frames. This device can adjust the position of the rotating mounting frame to synchronously expand the net frame, adapting to the growth space requirements of Culter alburnus from fry to adult fish, without the need to replace the net frame. The mesh size of the outer net increases from left to right, and the mesh size is adjusted synchronously with the expansion of the net frame, taking into account both escape prevention and water flow. The net can be easily retrieved by a pull rope assembly, reducing labor intensity and equipment wear, suitable for large-scale lake farming, and improving farming efficiency and fish survival rate.

Description

Technical Field

[0001] This invention relates to fish farming, and more particularly to a farming device for Culter alburnus. Background Technology

[0002] Culter alburnus is an important and valuable freshwater fish species in my country, prized for its tender flesh and high economic value. It is widely used in large-scale aquaculture in lakes and reservoirs. Currently, the most common method for Culter alburnus farming in lakes is net-frame culture. This method has advantages such as simple structure, low cost, and suitability for open lake environments. It effectively delineates farming areas, prevents escape, and facilitates observation of fish growth and daily feeding management. However, in actual farming, existing net-frame culture equipment has many shortcomings that urgently need to be addressed, severely restricting the efficiency and large-scale development of Culter alburnus farming. These shortcomings are as follows:

[0003] First, the existing net frames and mesh sizes are fixed designs, making it impossible to dynamically adjust them according to the growth cycle of the Culter alburnus. As carnivorous fish, the Culter alburnus has a strong feeding ability and grows rapidly. From fry to adult (0.6-1.5 kg / fish), it needs to continuously expand its activity space to ensure normal growth, and the mesh size must be adjusted accordingly—fine mesh is required during the fry stage to prevent escape. However, with current technology, fish farmers can only meet these needs by changing net frames of different sizes. This process not only requires temporarily relocating the fish, which is cumbersome, time-consuming, and labor-intensive, but also easily causes stress and damage to the fish, leading to a decrease in survival rate.

[0004] In summary, we developed a bream farming device with adjustable dimensions. Summary of the Invention

[0005] The technical implementation scheme of the present invention is as follows: a fish farming device for Culter alburnus includes a support frame, a farming net installed on the support frame, a float on the support frame, and a total of eight farming nets. A fixed mounting frame is fixedly connected to the left side of the support frame. A first rotating frame symmetrically arranged front and rear is rotatably connected to the bottom of the fixed mounting frame. A U-shaped frame is slidably connected between the first rotating frames. A left-side net is disposed between the top left side of the U-shaped frame and the bottom left side of the fixed mounting frame. A second lifting block is connected to the bottom outer net between the U-shaped frame and the U-shaped frame. The top front and rear sides of the U-shaped frame are respectively connected to the fixed mounting frame with outer nets. The outer net consists of two sheets, front and rear. The front, rear, and bottom outer nets, along with the left-side net, form a fixed net frame. A sliding... The system is connected by a movable mounting frame, which is slidably connected to a fixed mounting frame. A second rotating frame, symmetrically arranged front and back, is slidably connected to the bottom of the movable mounting frame away from the first rotating frame. A square frame and a U-shaped frame are slidably connected between the second rotating frames. A right-side mesh is connected between the top right side of the square frame and the bottom of the movable mounting frame near the second rotating frame. The right-side mesh can move with the movable mounting frame. An inner mesh is set inside the square frame. The front and back sides of the top of the square frame are respectively connected to the bottom of the movable mounting frame with symmetrical inner meshes. The front, back, and bottom inner meshes, along with the right-side mesh, form an adjustable mesh frame. Counterweights are set on the U-shaped frame and the square frame respectively.

[0006] In a preferred embodiment of the present invention, the mesh size of the outer mesh and the bottom outer mesh gradually increases from the direction of extension along the moving U-shaped frame.

[0007] In a preferred embodiment of the present invention, an adjusting threaded rod is further included. The adjusting threaded rod is rotatably connected to the side of the support frame away from the fixed mounting frame. The adjusting threaded rod and the movable mounting frame are threadedly connected. A belt assembly is provided between the side of the adjusting threaded rod away from the fixed mounting frame.

[0008] In a preferred embodiment of the present invention, a pull rope assembly is provided on the counterweights on both sides. The pull rope assembly consists of a take-up reel and a pull rope. The take-up reel is respectively provided on the fixed mounting frame and the movable mounting frame. An inclined block is provided on the counterweight. The lower parts of the fixed mounting frame and the movable mounting frame are slidably connected to a first wedge. The first wedge and the inclined block are pressed together. A first spring is provided on the first wedge. The other end of the first spring is respectively connected to the mounting frame.

[0009] In a preferred embodiment of the present invention, a lifting block is further included. The symmetrically arranged lifting blocks are slidably connected to the fixed mounting frame and the movable mounting frame, respectively. The bottom of the left lifting block is pressed into the U-shaped frame, and the bottom of the right lifting block is pressed into the square frame. A rack is fixedly connected to the lifting block. A spur gear is fixedly connected to the side of the first rotating frame near the rack and the side of the second rotating frame near the rack, respectively. The spur gear meshes with the rack.

[0010] In a preferred embodiment of the present invention, multi-stage telescopic components are respectively provided on the left side of the fixed mounting frame, the right side of the movable mounting frame, and the front and rear sides of the support frame. Sliding blocks are respectively provided at the ends of the multi-stage telescopic components. Smoothing components are fixedly connected to the sliding blocks. Connecting rods are rotatably connected to both sides of the sliding blocks. Threaded blocks are rotatably connected to the connecting rods. Bidirectional threaded rods are rotatably connected to the left side, front and rear sides of the support frame, and the movable mounting frame. The bidirectional threaded rods and threaded blocks are threadedly connected. Symmetrically arranged bevel gears are fixedly connected to the bidirectional threaded rods. The bevel gears mesh with each other.

[0011] In a preferred embodiment of the present invention, a take-up roller is further included. The take-up roller is rotatably connected to the top of the support frame. A spiral spring is connected between the take-up roller and the support frame. A shielding net is wound on the take-up roller, and the shielding net covers the upper opening. A pull plate is fixedly connected to the side of the shielding net away from the take-up roller. Symmetrical pull members are provided on the pull plate. The pull members and the pull plate are rotatably connected. A pressure roller is provided on the side of the fixed mounting frame near the take-up roller. The pressure roller is used to press the shielding net downward. An abutment block is provided on the side of the movable mounting frame near the pull plate. A push frame is slidably connected to the support frame. The push frame and the pull members are slidably connected. A third spring is connected between the push frame and the pull members. A second wedge is slidably connected inside the pull member. A fourth spring is connected between the second wedge and the pull member. Guide frames are connected to both the front and rear sides of the support frame. An inclined surface is provided on the top of the guide frame. The inclined surface on the top of the guide frame and the second wedge are pressed together.

[0012] In a preferred embodiment of the present invention, a first wedge frame is further included. The first wedge frame is slidably connected to the fixed mounting frame near the pressure roller. The first wedge frame and the pressure roller are rotatably connected. A fifth spring is connected between the first wedge frame and the fixed mounting frame. A short column is fixedly connected to the push frame near the guide frame. The abutting block and the moving mounting frame are slidably connected. A third wedge is fixedly connected to the top of the abutting block. An extrusion member is provided on the push frame away from the third spring. The extrusion member and the third wedge are extruded and engaged. An inclined surface is provided on the guide frame near the first wedge frame.

[0013] In a preferred embodiment of the present invention, the extruder and the pusher are slidably connected, a ninth spring is connected between the extruder and the pusher, a locking block is slidably connected to the side of the extruder near the ninth spring, a seventh spring is connected between the locking block and the extruder, a perforated plate is slidably connected to the pusher, the large hole of the perforated plate and the locking block are pressed together, an eighth spring is connected between the perforated plate and the pusher, a first wedge block is fixedly connected to the bottom of the perforated plate, and a second wedge block is fixedly connected to the side of the support frame near the puller, the second wedge block and the first wedge block are pressed together.

[0014] In a preferred embodiment of the present invention, a second wedge frame is slidably connected to the fixed mounting frame near the take-up roller, and an elastic element is connected between the second wedge frame and the fixed mounting frame. A locking hole is opened on the left side of the top of the push frame, and an inclined surface is opened on the left side of the push frame.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The device can adjust the position of the movable mounting frame to drive the net frame to expand synchronously, adapting to the growth space requirements of the mandarin fish from fry to adult, without the need to replace the net frame; the mesh size of the outer net increases from left to right, and the mesh size is adjusted synchronously with the expansion of the net frame, taking into account both escape prevention and water flow. The net can be easily retracted through the pull rope component, avoiding messy storage, reducing labor intensity, reducing equipment wear and tear, adapting to large-scale lake aquaculture, and improving aquaculture efficiency and fish survival rate.

[0016] 2. This device uses a U-shaped frame, a square frame, a lifting block, a rack, and a spur gear to automatically unfold and retract the first and second rotating frames. It is convenient to store and easy to operate. Through multi-stage telescopic parts, sliding blocks, and leveling parts, combined with a bidirectional threaded rod and bevel gear transmission, the net body can be leveled simultaneously when the net is retracted, avoiding messy shrinkage.

[0017] 3. This device is equipped with a winding roller and a spiral spring at the top of the support frame. Together with the shielding net, the pulling plate and the fixing mechanism, it can quickly cover the opening above the aquaculture net and effectively prevent fish from jumping out.

[0018] 4. This device can automatically retrieve dead fish using a shielding net. By pushing the frame to move the pull plate to the left, the shielding net forms a double-layer structure, collecting dead fish on the water surface between the two layers, eliminating the need for frequent manual retrieval. In conjunction with the first wedge frame, pressure wheel, abutting arc block, and wedge-shaped component transmission, the shielding net and dead fish can be lifted simultaneously, making it convenient for personnel to retrieve the fish. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the outer and inner mesh frames during diameter expansion in this invention.

[0021] Figure 3 For the present invention Figure 2 A schematic diagram of the three-dimensional structure of part A in the middle.

[0022] Figure 4 This is a three-dimensional structural diagram of the components of the present invention, such as the leveling part, connecting rod, and threaded block.

[0023] Figure 5 This is a partial three-dimensional structural schematic diagram of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the pull member, the second wedge member, and the fourth spring of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the shielding net, the third wedge-shaped member, and the second wedge-shaped frame of the present invention.

[0026] Figure 8 For the present invention Figure 7 A schematic diagram of the three-dimensional structure at point B.

[0027] The above-mentioned attached drawings include the following reference numerals: 1. Support frame; 2. Float; 3. Fixed mounting frame; 4. First rotating frame; 5. Aquaculture net; 6. U-shaped frame; 7. Movable mounting frame; 8. Second rotating frame; 9. Counterweight; 10. Square frame; 11. Adjusting threaded rod; 12. Belt assembly; 13. Pull rope assembly; 14. Inclined block; 15. First wedge; 16. First spring; 17. Lifting block; 18. Second spring; 19. Spur gear; 20. Rack; 21. Multi-stage telescopic component; 22. Sliding block; 23. Leveling component; 24. Connecting rod; 25. Threaded block; 26. Double-sided threaded rod; 27. Bevel gear; 28. Winding mechanism. 29. Roller, 30. Spiral spring, 31. Shielding net, 32. Pulling component, 33. Pulling plate, 34. Pressure roller, 35. Abutting arc block, 36. Pushing frame, 37. Third spring, 38. Second wedge component, 39. Fourth spring, 40. Guide frame, 41. First wedge frame, 42. Fifth spring, 43. Short column, 44. Third wedge component, 45. Sixth spring, 46. Locking block, 47. Seventh spring, 48. Perforated plate, 49. Eighth spring, 40. Extrusion component, 41. Ninth spring, 42. First wedge block, 43. Second wedge block, 44. Second wedge frame, 45. Elastic component, 46. Locking hole. Detailed Implementation

[0028] Although the invention may be described with respect to specific applications or industries, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0029] A Culter alburnus farming device includes a support frame 1, a farming net 5 which can be installed on the support frame 1, and a float 2 set on the support frame 1. The float 2 allows the fish to float on the water surface, while the farming net 5 sinks and unfolds, allowing fish fry to be placed inside the net 5 for farming. However, as described in the background art, the existing net frame size and mesh specifications are fixed designs and cannot be dynamically adjusted according to the growth cycle of the Culter alburnus. As a carnivorous fish, the Culter alburnus has a strong feeding ability and a fast growth rate. During its growth from fry to adult (0.6-1.5 kg / fish), it needs to continuously expand its activity space to ensure normal growth. Therefore, this embodiment proposes the following solution:

[0030] like Figures 1-2 As shown, the aquaculture net 5 is divided into eight sections. The support frame 1 is fixedly connected to the fixed mounting frame 3 on the left side. The bottom of the fixed mounting frame 3 is rotatably connected to the first rotating frame 4, which is symmetrically arranged in front and behind. The first rotating frames 4 are slidably connected to each other. The left side net is set between the top left side of the U-frame 6 and the bottom left side of the fixed mounting frame 3. The bottom outer net is connected between the second lifting block 17 and the U-frame 6.

[0031] The top front and rear sides of the U-shaped frame 6 are connected to the fixed mounting bracket 3 with the outer mesh. The outer mesh consists of two sheets, front and rear. The front, rear, bottom, and left side meshes form a fixed mesh frame.

[0032] A movable mounting frame 7 is slidably connected to the support frame 1. The movable mounting frame 7 and the fixed mounting frame 3 are slidably connected. A second rotating frame 8, symmetrically arranged front and rear, is rotatably connected to the bottom of the movable mounting frame 7 away from the first rotating frame 4. A square frame 10 is slidably connected between the second rotating frames 8. The square frame 10 and the U-shaped frame 6 are slidably connected. A right-side mesh is connected between the top right side of the square frame 10 and the bottom side of the movable mounting frame 7 near the second rotating frame 8. The right-side mesh can move as the movable mounting frame 7 moves.

[0033] The inner side of the square frame 10 is provided with a bottom inner mesh. The top front and rear sides of the square frame 10 are connected to the bottom of the movable mounting frame 7 with symmetrical inner meshes. The front, rear, bottom inner meshes and the right side mesh form an adjustable mesh frame.

[0034] A counterweight 9 is installed at the bottom of the net to keep the net in a sunken and unfolded state for aquaculture.

[0035] Initially, the inner and outer net frames are in a state of minimum space. As the fish grow, the motorized mounting frame 7 can be moved to the right by power control, which can cause the outer net frame to move to the right, thereby increasing the internal space of the aquaculture net 5. In this way, the activity space can be continuously expanded from the growth of fry to adult fish to ensure normal growth.

[0036] As the fish grow, the mesh size needs to be adjusted accordingly. During the fry stage, a fine mesh is needed to prevent escape, while after the fish become adults, the mesh size needs to be larger and larger. Therefore, the mesh size of the two outer nets at the front and back, as well as the bottom outer net, is set to gradually increase from left to right. Thus, during the process of moving the inner net to the right, the mesh size of the outer net can be exposed in order to increase the mesh size.

[0037] The above description describes the adjustment of the position of the movable mounting bracket 7 by a power source as follows: the support frame 1 is rotatably connected to the side away from the fixed mounting bracket 3 by an adjusting threaded rod 11, the adjusting threaded rod 11 and the movable mounting bracket 7 are threadedly connected, a belt assembly 12 is provided between the side of the adjusting threaded rod 11 away from the fixed mounting bracket 3, and a handle is provided at the end of the adjusting threaded rod 11 near the belt assembly 12. By rotating the handle, the handle drives the two adjusting threaded rods 11 to rotate through the belt assembly 12, thereby adjusting the position of the movable mounting bracket 7.

[0038] Currently, when retracting the aquaculture net 5, it is usually necessary to manually push the bottom of the aquaculture net 5 upwards to retract it, which is quite troublesome. To address this, this solution sets up a pull rope assembly 13 on the counterweight blocks 9 on both sides. The pull rope assembly 13 consists of a take-up reel and a pull rope. The take-up reels are respectively set on the fixed mounting frame 3 and the movable mounting frame 7. If it is necessary to retract the aquaculture net 5, the take-up reel can be rotated, causing the take-up reel to pull the pull rope to move the counterweight block 9 upwards. The counterweight block 9 will then drive the U-shaped frame 6 and the square frame 10 to rise. If the side nets are all folded upwards and retracted, the space can be reduced, making it easier to store the device.

[0039] Because the rope assembly 13 lacks a locking function, after the aquaculture net 5 is retracted and the take-up reel is released, the aquaculture net 5 will unfold again. Therefore, as... Figure 2 As shown, a ramp block 14 is provided on the counterweight block 9. The lower parts of the fixed mounting frame 3 and the movable mounting frame 7 are respectively slidably connected to the first wedge 15. The first wedge 15 and the ramp block are pressed together. The first wedge 15 is provided with a first spring 16, and the other end of the first spring 16 is connected to the mounting frame.

[0040] When the counterweight 9 moves upward, it will cause the inclined block 14 to move upward. When the inclined block 14 contacts the first wedge 15, it will push the first wedge 15 outward and compress the first spring 16. After the inclined block 14 moves to the top of the first wedge 15, the first spring 16 will drive the first wedge 15 to move and reset inside the box, thus limiting the inclined block 14. In this way, the U-shaped frame 6 and the square frame 10 can be kept in the rising state, and the breeding net 5 can be retracted. If it is necessary to unfold the breeding net 5, the first wedges 15 on both sides can be pulled open manually to release the inclined block 14.

[0041] After the U-shaped frame 6 and the square frame 10 are raised to retract the mesh frame, the first rotating frame 4 and the second rotating frame 8 remain in a vertical position. This still results in a large footprint. Therefore, the following solution is proposed:

[0042] like Figures 2-3As shown, lifting blocks 17 are slidably connected to the front and rear sides of the fixed mounting bracket 3 and the movable mounting bracket 7. The bottom of the left lifting block 17 is pressed into the U-shaped frame 6, and the bottom of the right lifting block 17 is pressed into the square frame 10. A rack 20 is fixedly connected to the lifting block 17. A spur gear 19 is fixedly connected to the side of the first rotating bracket 4 near the rack 20 and the side of the second rotating bracket 8 near the rack 20, respectively. The spur gear 19 and the rack 20 mesh.

[0043] When the U-shaped frame 6 and the square frame 10 move upward and contact the bottom of the lifting block 17, the lifting block 17 will be pushed upward, the second spring 18 will be compressed, and the lifting block 17 will drive the rack 20 to rise. At this time, the U-shaped frame 6 has moved into the fixed mounting frame 3, and the square frame 10 has moved into the movable mounting frame 7. The rise of the rack 20 will drive the spur gear 19 to rotate. The spur gear 19 will drive the first rotating frame 4 to rotate clockwise to a straight state and the second rotating frame 8 to rotate counterclockwise to a straight state. This allows the device to be retracted and stored. When the U-shaped frame 6 and the square frame 10 descend and separate from the lifting block 17, the second spring 18 will drive the lifting block 17 to descend. The lifting block 17 will drive the spur gear 19 to reverse, thereby driving the first rotating frame 4 and the second rotating frame 8 to rotate into a vertical state and unfold for use.

[0044] When the U-shaped frame 6 and the square frame 10 rise to retract the aquaculture net 5 upwards, the aquaculture net 5 may shrink messily. Therefore, the following solution is implemented:

[0045] like Figure 4 As shown, multi-stage telescopic components 21 are respectively installed on the left side of the fixed mounting frame 3, the right side of the movable mounting frame 7, and the front and rear sides of the support frame 1. Sliding blocks 22 are respectively installed at the ends of the multi-stage telescopic components 21. Smoothing components 23 are fixedly connected to the sliding blocks 22. By driving the smoothing components 23 to move inward, the net can be smoothed out, avoiding messiness when the net shrinks.

[0046] The leveling component 23 consists of multiple leveling wheels and multiple telescopic rods. The leveling wheels are evenly spaced longitudinally and connected by telescopic rods. When the leveling wheels move inward, they can level the aquaculture net 5. At the same time, when the bottom net rises and comes into contact with the leveling wheels, it will push the leveling wheels upward, causing the telescopic rods to retract adaptively. The leveling wheels on the front and left sides are distributed in a cross pattern to prevent the leveling wheels from colliding with each other when moving.

[0047] As explained above, it is necessary to drive the leveling component 23 to move, as detailed below:

[0048] like Figure 4As shown, the sliding block 22 is rotatably connected to the connecting rod 24 on both sides, and the connecting rod 24 is rotatably connected to the threaded block 25. The left side, front and rear sides of the support frame 1 and the moving mounting frame 7 are respectively rotatably connected to the bidirectional threaded rod 26. The bidirectional threaded rod 26 and the threaded block 25 are threadedly connected. The bidirectional threaded rod 26 is fixedly connected to the symmetrically arranged bevel gears 27. The bevel gears 27 that are close to each other mesh with each other. The bidirectional threaded rod 26 on both sides is provided with a handle. People can rotate the bidirectional threaded rod 26 by holding the handle. The bidirectional threaded rod 26 can drive the threaded block 25 to move to one side of the multi-stage telescopic member 21 or to the side away from the multi-stage telescopic member 21, thereby realizing the smoothing member 23 moving inward or outward.

[0049] In order to enable the leveling and net-collecting operations to run simultaneously, the take-up reel of the rope assembly 13 is connected to the bidirectional threaded rod 26. In this way, when collecting the net, the leveling component 23 will simultaneously level the aquaculture net 5.

[0050] During the aquaculture process, some fish may jump out from the top of the aquaculture net. Therefore, such as... Figure 5 As shown, a take-up roller 28 is rotatably connected to the top left of the support frame 1. A spiral spring 29 is connected between the take-up roller 28 and the support frame 1. A shielding net 30 is wound on the take-up roller 28, covering the upper opening. A pull plate 32 is fixedly connected to the side of the shielding net 30 away from the take-up roller 28. Symmetrical pull members 31 are provided on the pull plate 32. The pull members 31 and the pull plate 32 are rotatably connected. A pressure roller 33 is provided on the side of the fixed mounting frame 3 near the take-up roller 28. The pressure roller 33 is used to press the shielding net 30 downward. An abutting block 34 is provided on the side of the movable mounting frame 7 near the pull plate 32. The right side of the shielding net 30 is pressed downward. The abutting block 34 is used to support the right side of the shielding net 30. In this way, the shielding net 30 is in a horizontally straight state, which can cover the opening and prevent the fish from jumping out.

[0051] When covering, pulling member 31 is pulled to the right, causing pulling plate 32 to move to the right. After pulling plate 32 abuts against the top of arc block 34, pulling member 31 is pressed down, causing pulling plate 32 to move down and press down. Pulling member 31 is restricted by a fixing mechanism. Pulling plate 32 can then pull the covering net 30 open to cover the opening. The covering net 30 drives the take-up roller 28 to rotate, and the spiral spring 29 is twisted. If it is necessary to open the opening, the fixing mechanism can be unlocked to release pulling member 31. In this way, spiral spring 29 will automatically rewind the take-up roller 28, and the take-up roller 28 will rewind the covering net 30 back to its original position.

[0052] like Figures 5-6As shown, the fixing mechanism includes a push frame 35, which is slidably connected to the support frame 1. The push frame 35 and the pull member 31 are slidably connected. A third spring 36 is connected between the push frame 35 and the pull member 31. A second wedge 37 is slidably connected inside the pull member 31. A fourth spring 38 is connected between the second wedge 37 and the pull member 31. Guide frames 39 are connected to both the front and rear sides of the support frame 1. An inclined surface is provided on the top of the guide frame 39. The inclined surface on the top of the guide frame 39 and the second wedge 37 are pressed together.

[0053] By pressing the pull member 31 downwards, the wedge-shaped surface of the second wedge member 37 comes into contact with the inclined surface of the guide frame 39, causing the second wedge member 37 to move inwards. The fourth spring 38 is compressed. After the second wedge member 37 moves to the bottom of the guide frame 39, the fourth spring 38 drives the second wedge member 37 to move outwards. In this way, the guide frame 39 can restrict the second wedge member 37, keeping the second wedge member 37, the pull member 31, and the pull plate 32 in a downward-pressed state. In this way, the right side of the shielding net 30 can be fixed and restricted.

[0054] During the aquaculture process, fish may die and float on the water surface, requiring subsequent retrieval. This embodiment provides an automatic fish retrieval function. The pull plate 32 moves downward to a position near the bottom of the water surface. Therefore, the push frame 35 can be moved to the left by hand. The push frame 35 drives the pull member 31 and the pull plate 32 to move to the left. At this time, the shielding net 30 will form a double layer. During the leftward movement of the lower shielding net 30, the dead fish will be retrieved between the two shielding nets 30. Moreover, during the leftward movement of the pull member 31, the second wedge 37 remains against the bottom of the guide frame 39, so that the lower layer of the shielding net 30 remains near the bottom of the water surface for fish retrieval.

[0055] However, after the fish are caught, the shielding net 30 faces the problem of fish remaining on the surface, making it difficult to remove them. Therefore, the following solution is proposed:

[0056] like Figure 1 and Figure 5 As shown, the fixed mounting frame 3 is slidably connected to the first wedge frame 40 near the pressure roller 33. The first wedge frame 40 and the pressure roller 33 are rotatably connected. The fifth spring 41 is connected between the first wedge frame 40 and the fixed mounting frame 3. The push frame 35 is fixedly connected to the short column 42 near the guide frame 39. The abutting block 34 and the movable mounting frame 7 are slidably connected. The top of the abutting block 34 is fixedly connected to the third wedge member 43. The push frame 35 is provided with the extrusion member 44 on the side away from the third spring 36. The extrusion member 44 and the third wedge member 43 are extruded and cooperate. The guide frame 39 is provided with an inclined surface on the side near the first wedge frame 40.

[0057] When the pusher 35 moves to the left, it causes the short column 42, the second wedge 37, and the extrusion member 44 to move to the left. When the short column 42 contacts the first wedge 40, it will push the first wedge 40 to move upward. The fifth spring 41 is stretched, and the upward movement of the first wedge 40 causes the pressure roller 33 to move upward. At the same time, the extrusion member 44 contacts the third wedge 43, which will push the third wedge 43 to move upward. The third wedge 43 will then drive the abutment block 34 to move upward. In this way, the shielding net 30 can be lifted upward, and the dead fish can be lifted upward. Moreover, when the second wedge 37 contacts the inclined surface, the third spring 36 will drive the pulling member 31 and the second wedge 37 to move upward. In this way, the pulling plate 32 can also lift the shielding net 30. After the dead fish are lifted upward, it is convenient for people to take the fish out.

[0058] Furthermore, since the movable mounting bracket 7 is adjustable, the positions of the third wedge 43 and the abutting arc block 34 will also change accordingly. If the distance between the extruder 44 and the third wedge 43 does not change, the abutting arc block 34 may be raised before the fish are fully caught, affecting the operation of the entire equipment. Therefore, if... Figures 1-8 As shown, the extrusion member 44 and the push frame 35 are slidably connected. A ninth spring 441 is connected between the extrusion member 44 and the push frame 35. A locking block 432 is slidably connected to the side of the extrusion member 44 near the ninth spring 441. A seventh spring 433 is connected between the locking block 432 and the extrusion member 44. A perforated plate 434 is slidably connected to the push frame 35. The large hole of the perforated plate 434 and the locking block 432 are press-fitted. An eighth spring 435 is connected between the perforated plate 434 and the push frame 35. A first wedge block 442 is fixedly connected to the bottom of the perforated plate 434. A second wedge block 443 is fixedly connected to the side of the support frame 1 near the pull member 31. The second wedge block 443 and the first wedge block 442 are press-fitted.

[0059] Regardless of the diameter expansion length, when the pusher 35 moves to the left, the pusher 35 drives the extrusion member 44 to move to the left. When the extrusion member 44 contacts the third wedge member 43, the locking hole 47 and locking block 432 of the perforated plate 434 are separated. At this time, the pusher 35 continues to move to the left. After the extrusion member 44 is blocked by the third wedge member 43, the ninth spring 441 is compressed. The pusher 35 drives the first wedge block 442 to move to the left. When the first wedge block 442 and the second wedge block 443 contact, the pull plate 32 has pulled the aquaculture net 5 to the left end. At this time, the left side of the aquaculture net 5 is lifted upward. At this time, the first wedge block 442 and the second wedge block 443 cooperate to push the first wedge block 442. The movement is initiated by the first wedge block 442 moving inward, which in turn drives the perforated plate 434 to move inward, compressing the eighth spring 435. If the locking hole 47 of the perforated plate 434 and the locking block 432 coincide, the perforated plate 434 will restrict the locking block 432. If the locking hole 47 of the perforated plate 434 and the locking block 432 do not coincide, the perforated plate 434 will press the locking block 432 inward, compressing the seventh spring 433. When the pusher 35 continues to move to the left, it drives the pressing member 44 to move. At this time, the pressing member 44 and the pusher 35 are locked together. The pressing member 44 will drive the third wedge member 43. The third wedge member 43 is pushed upward, which will push the arc block 34 to move upward and lift it.

[0060] After the salvage is completed, the pusher 35 moves to the right, causing the extrusion piece 44 to move to the right and reset. After the second wedge block 443 and the first wedge block 442 separate, under the action of the eighth spring 435, the perforated plate 434 moves to reset. After the extrusion piece 44 and the third wedge piece 43 separate, under the action of the sixth spring 431, the third wedge piece 43 moves downward to reset.

[0061] After the pusher 35 moves to its left limit, the fish needs to be removed. However, the pusher 35 is not fixed, so people need to keep pressing down on it with their hands. Figure 5As shown, a second wedge frame 45 is slidably connected to the fixed mounting frame 3 near the take-up roller 28. An elastic element 46 connects the second wedge frame 45 and the fixed mounting frame 3. A locking hole 47 is opened on the top left side of the push frame 35, and an inclined surface is opened on the left side of the push frame 35. When the inclined surface of the push frame 35 contacts the second wedge frame 45, it will push the second wedge frame 45 to move upward, and the elastic element 46 will be compressed. When the locking hole 47 of the push frame 35 contacts the second wedge frame 45, the elastic element 46 will drive the second wedge frame 45 to descend and lock into the locking hole 47. In this way, the push frame 35 can be pushed. The line is restricted so that the fish can be removed later. When it is necessary to reset, the second wedge frame 45 is pulled upward away from the card hole 47. At this time, the spiral spring 29 drives the winding roller 28 to reverse and wind up the shielding net 30. The shielding net 30 pulls the pulling plate 32, the pulling member 31, the pushing frame 35, the short column 42 and the squeezing member 44 to the right to reset. The short column 42 and the squeezing member 44 move to the right away from the first wedge frame 40 and the third wedge member 43. The fifth spring 41 drives the first wedge frame 40 and the pressure roller 33 to descend and reset. They are pressed against the arc block 34 and the third wedge member 43 and descend and reset by gravity.

[0062] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.

Claims

1. A fish farming device for Culter alburnus, comprising a support frame (1), a farming net (5) mounted on the support frame (1), and floats (2) disposed on the support frame (1), characterized in that, The aquaculture net (5) consists of eight pieces. The support frame (1) is fixedly connected to the fixed mounting frame (3) on the left side. The bottom of the fixed mounting frame (3) is rotatably connected to the first rotating frame (4) which is symmetrically arranged at the front and back. The first rotating frames (4) are slidably connected to the U-shaped frame (6). The left net is set between the top left side of the U-shaped frame (6) and the bottom left side of the fixed mounting frame (3). The second lifting block (17) is connected to the bottom outer net between the U-shaped frame (6). The top front and back sides of the U-shaped frame (6) are connected to the fixed mounting frame (3) respectively. The outer net consists of two pieces, front and back. The front, back, bottom outer nets and the left net form a fixed net frame. The support frame (1) is slidably connected to the moving mounting frame (7). The moving mounting frame (7) is slidably connected to the fixed mounting frame (3). The bottom of the mounting frame (7) is rotatably connected to the side away from the first rotating frame (4) and is symmetrically connected to the second rotating frame (8). The second rotating frames (8) are slidably connected to the square frame (10). The square frame (10) and the U-shaped frame (6) are slidably connected. The right side of the top right side of the square frame (10) and the bottom of the moving mounting frame (7) near the second rotating frame (8) are connected to the right side of the net. The right side of the net can move with the moving mounting frame (7). The bottom inner net is set inside the square frame (10). The front and back sides of the top of the square frame (10) are respectively connected to the bottom of the moving mounting frame (7) with symmetrical inner nets. The front, back, and bottom inner nets and the right side net form an adjustable net frame. The U-shaped frame (6) and the square frame (10) are respectively equipped with counterweights (9).

2. The aquaculture equipment for Culter alburnus according to claim 1, characterized in that, The mesh size of the outer mesh and the bottom outer mesh gradually increases from the direction of extension along the moving U-shaped frame (6).

3. The aquaculture equipment for Culter alburnus according to claim 2, characterized in that, It also includes an adjusting threaded rod (11), which is rotatably connected to the support frame (1) on the side away from the fixed mounting frame (3). The adjusting threaded rod (11) and the moving mounting frame (7) are threadedly connected. A belt assembly (12) is provided between the adjusting threaded rod (11) on the side away from the fixed mounting frame (3).

4. A fish farming device for Culter alburnus according to claim 3, characterized in that, A pull rope assembly (13) is provided on the counterweight (9) on both sides. The pull rope assembly (13) consists of a take-up reel and a pull rope. The take-up reel is provided on the fixed mounting frame (3) and the movable mounting frame (7) respectively. An inclined block (14) is provided on the counterweight (9). The lower parts of the fixed mounting frame (3) and the movable mounting frame (7) are respectively slidably connected to a first wedge (15). The first wedge (15) and the inclined block are pressed together. A first spring (16) is provided on the first wedge (15) respectively. The other end of the first spring (16) is connected to the mounting frame respectively.

5. A fish farming device for Culter alburnus according to claim 4, characterized in that, It also includes lifting blocks (17), which are symmetrically arranged and are slidably connected to the fixed mounting frame (3) and the moving mounting frame (7). The bottom of the left lifting block (17) is pressed and fitted with the U-shaped frame (6), and the bottom of the right lifting block (17) is pressed and fitted with the square frame (10). A rack (20) is fixedly connected to the lifting block (17). A spur gear (19) is fixedly connected to the side of the first rotating frame (4) near the rack (20) and the side of the second rotating frame (8) near the rack (20). The spur gear (19) and the rack (20) mesh.

6. A fish farming device for Culter alburnus according to claim 5, characterized in that, a fixed... Multi-stage telescopic components (21) are respectively installed on the left side of the mounting frame (3), the right side of the movable mounting frame (7), and the front and rear sides of the support frame (1). Sliding blocks (22) are respectively installed at the ends of the multi-stage telescopic components (21). Smoothing components (23) are fixedly connected to the sliding blocks (22). Connecting rods (24) are rotatably connected to both sides of the sliding blocks (22). Threaded blocks (25) are rotatably connected to the connecting rods (24). Bidirectional threaded rods (26) are rotatably connected to the left side, the front and rear sides of the support frame (1) and the movable mounting frame (7). The bidirectional threaded rods (26) and the threaded blocks (25) are threadedly connected. Symmetrically arranged bevel gears (27) are fixedly connected to the bidirectional threaded rods (26). The bevel gears (27) that are close to each other mesh with each other.

7. A fish farming device for Culter alburnus according to claim 6, characterized in that, It also includes a take-up roller (28), which is rotatably connected to the top of the support frame (1). A spiral spring (29) is connected between the take-up roller (28) and the support frame (1). A shielding net (30) is wound on the take-up roller (28). The shielding net (30) shields the upper opening. A pull plate (32) is fixedly connected to the side of the shielding net (30) away from the take-up roller (28). Symmetrical pull members (31) are provided on the pull plate (32). The pull members (31) and the pull plate (32) are rotatably connected. A pressure roller (33) is provided on the side of the fixed mounting frame (3) near the take-up roller (28). The pressure roller (33) is used to press the shielding net (30) downward. The mounting bracket (7) is provided with an abutting block (34) on the side near the pull plate (32). The push bracket (35) is slidably connected to the support bracket (1). The push bracket (35) and the pull member (31) are slidably connected. A third spring (36) is connected between the push bracket (35) and the pull member (31). A second wedge (37) is slidably connected inside the pull member (31). A fourth spring (38) is connected between the second wedge (37) and the pull member (31). Guide brackets (39) are connected to both the front and rear sides of the support bracket (1). An inclined surface is provided on the top of the guide bracket (39). The inclined surface on the top of the guide bracket (39) and the second wedge (37) are pressed together.

8. A fish farming device for Culter alburnus according to claim 7, characterized in that, It also includes a first wedge frame (40), which is slidably connected to the fixed mounting frame (3) on the side near the pressure roller (33). The first wedge frame (40) and the pressure roller (33) are rotatably connected. A fifth spring (41) is connected between the first wedge frame (40) and the fixed mounting frame (3). A short column (42) is fixedly connected to the push frame (35) on the side near the guide frame (39). The abutting block (34) and the moving mounting frame (7) are slidably connected. A third wedge (43) is fixedly connected to the top of the abutting block (34). An extrusion member (44) is provided on the side of the push frame (35) away from the third spring (36). The extrusion member (44) and the third wedge (43) are extruded and fitted together. An inclined surface is provided on the side of the guide frame (39) near the first wedge frame (40).

9. A fish farming device for Culter alburnus according to claim 8, characterized in that, The extrusion piece (44) and the push frame (35) are slidably connected. A ninth spring (441) is connected between the extrusion piece (44) and the push frame (35). A locking block (432) is slidably connected to the side of the extrusion piece (44) near the ninth spring (441). A seventh spring (433) is connected between the locking block (432) and the extrusion piece (44). A perforated plate (434) is slidably connected to the push frame (35). The large hole of the perforated plate (434) and the locking block (432) are squeezed together. An eighth spring (435) is connected between the perforated plate (434) and the push frame (35). A first wedge block (442) is fixedly connected to the bottom of the perforated plate (434). A second wedge block (443) is fixedly connected to the side of the support frame (1) near the puller (31). The second wedge block (443) and the first wedge block (442) are squeezed together.

10. A fish farming device for Culter alburnus according to claim 9, characterized in that, a fixed... The mounting bracket (3) is slidably connected to the second wedge bracket (45) on the side near the take-up roller (28). An elastic element (46) is connected between the second wedge bracket (45) and the fixed mounting bracket (3). A card hole (47) is opened on the top left side of the push bracket (35), and an inclined surface is opened on the left side of the push bracket (35).

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