A guide rail lifting device for a culture net cage

Abstract

This invention belongs to the field of aquaculture cage technology, and specifically discloses an aquaculture cage guide rail lifting device. This device includes a truss platform, a mounting frame at the bottom of the truss platform, and pulley lifting structures on the top of the truss platform and the four sides of the mounting frame. A cage is positioned in the middle of the truss platform, and a mounting base is fixedly connected to the bottom of the cage. Adjustment components are provided on the truss platform and the mounting frame, including a connecting rod, a fixing block, a first pulley, and a first mounting block. This invention improves the stability of the connection between the pulley lifting structure and the mounting base by utilizing the first pulley, the fixing block, and the first mounting block, increasing the force-bearing area. The support structure also supports and fixes the installation of the first pulley, the fixing block, and the first mounting block, while providing auxiliary support for the pulley lifting structure. This prevents the lifting force from being borne solely by the four corners, reducing localized pressure and improving the lifting effect of the cage.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture cage technology, and specifically relates to a lifting device for aquaculture cage guide rails. Background Technology

[0002] Aquaculture cages are flexible or rigid enclosures used for intensive aquaculture in open waters (such as oceans, lakes, and reservoirs). Their core function is to demarcate a specific area of ​​water for the centralized feeding, management, and protection of aquatic organisms such as fish and shrimp. Aquaculture cages include floating cages, fixed cages, and lifting cages. Lifting cages are equipped with guide rails and a power system, allowing them to adjust their depth in the water according to environmental changes (such as strong winds and waves, and water temperature fluctuations) to adapt to environmental changes (such as sheltering from wind and waves, and regulating water temperature) or to facilitate aquaculture operations (such as feeding and harvesting).

[0003] In existing technologies, aquaculture cages mostly adopt a guide rail lifting structure. The guide rail only provides support at the four corners of the cage. The inertial force when lifting starts or stops will be concentrated at the four corners. However, in strong winds and waves, the cage will sway up and down with the waves. Long-term repeated action will cause the connection between the guide rail and the cage to loosen and the structure to deform, thus affecting the stability and reliability of the cage lifting.

[0004] Therefore, it is necessary to invent a lifting device for the guide rail of aquaculture cages to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a lifting device for aquaculture cage guide rails, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lifting device for aquaculture cage guide rails, comprising a truss platform, an installation frame at the bottom of the truss platform, pulley lifting structures at the top of the truss platform and on the four sides of the installation frame, a cage in the middle of the truss platform, an installation seat fixedly connected to the bottom of the cage, and adjustment components on the truss platform and the installation frame. The adjustment assembly includes a connecting rod, a fixing block, a first pulley, and a first mounting block. The connecting rod is located on the side of the mounting frame closest to the cage. The first pulley is slidably connected to the bottom end of the connecting rod near the mounting base. The first mounting block is fixedly connected to the first pulley and the first mounting block is fixedly connected to the mounting base. The fixing block is fixedly connected to the side of the connecting rod away from the first pulley.

[0007] Furthermore, the mounting frame includes columns, mounting plates, and support rods. The columns are fixedly connected to the four corners of the truss platform, and the mounting plates are fixedly connected to the bottom of the columns. Support rods are set between two adjacent columns. The upper and lower sides of the support rods are fixedly connected to the top of the mounting plates and the bottom of the truss platform, respectively. Connecting rods are fixedly connected between the truss platform and the mounting plates. The connecting rods, fixing blocks, and support structures are located on the side of the support rods closer to the gabion.

[0008] Furthermore, the pulley lifting structure includes a drive structure, a fixed plate, a guide rod, a fixed rod, a second pulley, a fixed seat, and a second mounting block. The two fixed plates are respectively fixedly installed at the bottom of the truss platform and the top of the mounting plate. A guide rod is fixedly connected to the middle of the two fixed plates, and fixed rods are fixedly connected to both ends of the two fixed plates. The second pulley is slidably connected to the bottom of the guide rod. A fixed seat is fixedly connected to the side of the second pulley away from the guide rod. The second mounting block is fixedly connected to the bottom of the fixed seat and is fixedly connected to the mounting seat.

[0009] Furthermore, the drive structure includes winches and wire ropes. There are four sets of winches, which are fixedly installed on the top of the truss platform. Each set of winches is fixedly connected to a wire rope. The wire ropes connected to two sets of winches are fixedly connected to the top of the mounting base and the top of the cage, respectively.

[0010] Furthermore, the end of the fixing block furthest from the connecting rod is fixedly connected to the middle of the fixing rod, and the support structure is symmetrically arranged with respect to the center of the connecting rod. The first mounting block, the fixing seat, and the first pulley are located at the four corners of the top of the mounting seat.

[0011] Furthermore, the fixed block is connected to the pulley lifting assembly, and a support structure is provided on the fixed block and the pulley lifting assembly. The support structure includes a telescopic rod, a movable block, a first limiting rod, a movable rod, a second limiting rod, and a fixing ring. One end of the telescopic rod is hinged to the bottom of the fixed block, and the other end is hinged to the movable block. The bottom of the movable block is slidably connected to the top of the mounting plate. The first limiting rod is fixedly connected to one side of the movable block, and a movable rod is fixedly connected to the top of the movable block. The second limiting rod is fixedly connected to the top of the movable rod. The second limiting rod is set inside the fixed block, and two fixing rings are fixedly connected to the column.

[0012] Furthermore, the telescopic rod is located between the fixed block and the mounting plate, and the telescopic rod is inclined on both sides of the connecting rod. The fixed block has a movable groove at one end near the fixed rod, and the second limiting rod is slidably connected to the inner wall of the movable groove. The bottom of the fixed block near the fixed rod has a sliding groove, and the top of the movable rod extends through the sliding groove into the movable groove. Both sides of the second limiting rod are slidably connected to the movable groove.

[0013] Furthermore, the fixing plate has movable openings on the side near the fixing block and at the bottom of the fixing rod. Two fixing rings are located between the truss platform and the mounting plate. Two limiting grooves are opened on each of the two fixing rings. The first limiting rod passes through the movable opening and is inserted into the limiting groove on the lower fixing ring. The second limiting rod passes through the movable groove and the middle of the fixing rod and is inserted into the limiting groove on the upper fixing ring.

[0014] Furthermore, the steel wire rope located at the top of the mounting base is positioned between the first pulley and the second pulley. Two sliding blocks are provided between the first mounting block and the second mounting block. The two sliding blocks are arranged in a rotationally symmetrical manner. The bottom of the sliding blocks is slidably connected to the top of the mounting base, and the two sliding blocks are fixedly connected to the first mounting block and the second mounting block respectively by compression springs. The first mounting block, the second mounting block, the compression spring, and the sliding blocks are located at the top edge of the mounting base.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention improves the stability of the connection between the pulley lifting structure and the mounting base by utilizing the functions of the first pulley, the fixing block, and the first mounting block, increasing the force-bearing area. The support structure can support and fix the installation of the first pulley, the fixing block, and the first mounting block, while providing auxiliary support for the pulley lifting structure. This improves the stability of the pulley lifting assembly connection, ensuring that the lifting force is not only borne by the four corners, reducing local pressure, and improving the lifting effect of the cage.

[0016] 2. The present invention connects the first and second pulleys to the mounting base through the function of the first and second mounting blocks, and buffers the cage when it shakes up and down through the action of the sliding block and the compression spring, thereby improving the stability of the installation of the first and second pulleys, further buffering the inertial impact of lifting and stopping and offsetting the lateral wind and wave load, and avoiding the loosening or damage of components due to long-term stress. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a structural diagram of the truss platform, mounting frame, adjustment components, and cage according to an embodiment of the present invention; Figure 3 This is a structural diagram of the truss platform, mounting frame, and mounting base according to an embodiment of the present invention; Figure 4 This is the present invention. Figure 3 Enlarged view of point A; Figure 5 This is a structural diagram of the connecting rod, fixing block, and supporting structure according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the fixing block, fixing rod, and support structure according to an embodiment of the present invention; Figure 7This is the present invention. Figure 6 Enlarged view of point B; Figure 8 This is a structural diagram of the mounting base, the first pulley, and the second pulley according to an embodiment of the present invention; Figure 9 This is a structural diagram of the first mounting block, the second mounting block, the sliding block, and the compression spring according to an embodiment of the present invention.

[0018] In the diagram: 1. Truss platform; 2. Mounting frame; 3. Net cage; 4. Mounting seat; 5. Connecting rod; 6. Fixing block; 7. First pulley; 8. First mounting block; 9. Column; 10. Mounting plate; 11. Fixing plate; 12. Guide rod; 13. Fixing rod; 14. Second pulley; 15. Fixing seat; 16. Second mounting block; 17. Winch; 18. Wire rope; 19. Telescopic rod; 20. Moving block; 21. First limiting rod; 22. Moving rod; 23. Second limiting rod; 24. Fixing ring; 25. Limiting groove; 26. Sliding block; 27. Compression spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0020] This invention provides a lifting device for aquaculture cage guide rails, such as... Figures 1 to 3 As shown, it includes a truss platform 1, an installation frame 2 at the bottom of the truss platform 1, a pulley lifting structure at the top of the truss platform 1 and the four sides of the installation frame 2, a wire mesh box 3 in the middle of the truss platform 1, an installation base 4 fixedly connected to the bottom of the wire mesh box 3, and adjustment components on the truss platform 1 and the installation frame 2. The adjustment assembly includes a connecting rod 5, a fixing block 6, a first pulley 7, a first mounting block 8, and a support structure. The mounting frame 2 is provided with a connecting rod 5 on the side near the net cage 3. The bottom end of the connecting rod 5 is slidably connected to the first pulley 7 on the side near the mounting base 4. The first pulley 7 is fixedly connected to the first mounting block 8. The first mounting block 8 is fixedly connected to the mounting base 4. The side of the connecting rod 5 away from the first pulley 7 is fixedly connected to the fixing block 6. The mounting frame 2 includes columns 9, mounting plates 10, and support rods. The columns 9 are fixedly connected at the four corners of the truss platform 1. The bottom end of the columns 9 is fixedly connected to the mounting plates 10. Support rods are provided between two adjacent columns 9. The upper and lower sides of the support rods are fixedly connected to the top of the mounting plates 10 and the bottom of the truss platform 1, respectively. The connecting rod 5 is fixedly connected between the truss platform 1 and the mounting plates 10. The connecting rod 5, the fixing block 6, and the support structure are located on the side of the support rods near the net cage 3.

[0021] The pulley lifting structure is installed via the truss platform 1 and the mounting frame 2. The mounting plate 10 and the truss platform 1 facilitate the fixing of the connecting rod 5, and the first pulley 7 is connected to the mounting base 4 via the first mounting block 8. When the pulley 7 moves along the connecting rod 5, it can drive the first mounting block 8 and the mounting base 4 to move, thereby driving the cage 3 to rise and fall. This increases the force-bearing area and improves the stability of the connection between the pulley lifting structure and the mounting base 4. At the same time, the fixing block 6 can be connected to the pulley lifting structure, so that the support structure supports and fixes the fixing block 6 and the pulley lifting structure, thereby improving the pulley lifting structure. The stability of the cage ensures that the lifting force is no longer borne solely by the four corners, reducing local pressure and improving the lifting effect of the cage 3. It also prevents the cage 3 from swaying up and down with the waves during lifting in strong winds and waves. Long-term repeated action can cause the connection between the guide rail and the cage 3 to loosen and the structure to deform. When the cage 3 needs to be lifted, the pulley lifting assembly can be activated to move the mounting base 4 and the cage 3 up and down for lifting. At the same time, when the mounting base 4 moves, it drives the first mounting block 8 and the first pulley 7 to move, so that the first pulley 7 moves along the fixed rod 13, thereby adjusting the depth of the cage 3 and making it easier to use.

[0022] like Figures 1 to 3 As shown, the pulley lifting structure includes a drive structure, a fixed plate 11, a guide rod 12, a fixed rod 13, a second pulley 14, a fixed seat 15, and a second mounting block 16. Two fixed plates 11 are respectively fixedly installed at the bottom of the truss platform 1 and the top of the mounting plate 10. A guide rod 12 is fixedly connected to the middle of the two fixed plates 11, and fixed rods 13 are fixedly connected to both ends of the two fixed plates 11. The second pulley 14 is slidably connected to the bottom end of the guide rod 12. A fixed seat 15 is fixedly connected to the side of the second pulley 14 away from the guide rod 12. The second mounting block 16 is fixedly connected to the bottom of the fixed seat 15. The two mounting blocks 16 are fixedly connected to the mounting base 4. The driving structure includes a winch 17 and a wire rope 18. There are four sets of winches 17, and they are all fixedly installed on the top of the truss platform 1. Each set of winches 17 is fixedly connected to a wire rope 18. The wire ropes 18 connected to the two sets of winches 17 are fixedly connected to the top of the mounting base 4 and the top of the net box 3, respectively. The end of the fixing block 6 away from the connecting rod 5 is fixedly connected to the middle of the fixing rod 13. The support structure is symmetrically arranged with respect to the center of the connecting rod 5. The first mounting block 8, the fixing base 15 and the first pulley 7 are located at the four corners of the top of the mounting base 4.

[0023] The guide rod 12 and the fixed rod 13 are easily installed on the mounting frame 2 via the fixing plate 11. The second pulley 14 is connected to the mounting base 4 via the second mounting block 16 and the fixed seat 15. When the four sets of winches 17 are started and drive the wire rope 18 to retract simultaneously, the wire rope 18 causes the mounting base 4 to move upward. Since the first mounting block 8, the fixed seat 15, and the first pulley 7 are located at the top of the mounting base 4, the second mounting block 16 drives the fixed seat 15 and the second pulley 14 to move upward along the guide rod 12. Since the second mounting block 16, the fixed seat 15, and the second pulley 14 are located between two adjacent first mounting blocks 8 and second pulleys 14, the mounting base 4 can move upward when it moves. The first mounting base 4 and the first pulley 7 can be moved, so that the first pulley 7 moves along the connecting rod 5. The first mounting block 8 and the first pulley 7 can improve the stability of the connection between the first mounting block 8, the fixed base 15, the first pulley 7 and the mounting base 4, and provide auxiliary support to prevent the second pulley 14, the fixed base 15 and the second mounting block 16 from only being connected to the four corners of the net cage 3 when the aquaculture net cage 3 is raised or lowered. The inertial force when the raising or lowering starts or stops will be concentrated at the four corners. In strong wind and wave weather, the net cage 3 will sway up and down with the waves. Long-term repeated action will cause the connection between the guide rail and the net cage 3 to loosen and the structure to deform, thus affecting the raising and lowering effect of the net cage 3.

[0024] like Figures 3 to 7As shown, the fixed block 6 is connected to the pulley lifting assembly. A support structure is provided on the fixed block 6 and the pulley lifting assembly. The support structure includes a telescopic rod 19, a movable block 20, a first limiting rod 21, a movable rod 22, a second limiting rod 23, and a fixing ring 24. One end of the telescopic rod 19 is hinged to the bottom of the fixed block 6, and the other end is hinged to the movable block 20. The bottom of the movable block 20 is slidably connected to the top of the mounting plate 10. The first limiting rod 21 is fixedly connected to one side of the movable block 20, and the movable rod 22 is fixedly connected to the top of the movable block 20. The second limiting rod 23 is fixedly connected to the top of the movable rod 22. The second limiting rod 23 is located inside the fixed block 6. Two fixing rings 24 are fixedly connected to the column 9. The telescopic rod 19 is located between the fixed block 6 and the mounting plate 10, and is inclined on both sides of the connecting rod 5. The fixed block 6 is close to... A movable groove is provided at one end of the fixed rod 13. The second limiting rod 23 is slidably connected to the inner wall of the movable groove. A sliding groove is provided at the bottom of the fixed block 6 near the fixed rod 13. The top of the moving rod 22 extends through the sliding groove into the movable groove. Both sides of the second limiting rod 23 are slidably connected to the movable groove. Movable openings are provided on the side of the fixed plate 11 near the fixed block 6 and at the bottom of the fixed rod 13. Two fixed rings 24 are located between the truss platform 1 and the mounting plate 10. Two limiting grooves 25 are provided on each of the two fixed rings 24. The first limiting rod 21 passes through the movable opening and is inserted into the limiting groove 25 on the lower fixed ring 24. The second limiting rod 23 passes through the movable groove and the middle of the fixed rod 13 and is inserted into the limiting groove 25 on the upper fixed ring 24. The first limiting rod 21 and the second limiting rod 23 are magnetically connected to the inner wall of the limiting groove 25 by a magnetic block.

[0025] In the initial state, the movable block 20 and the first limiting rod 21 are away from the fixed plate 11. The first limiting rod 21 is not inserted into the limiting groove 25 on the fixing ring 24 at the top of the mounting plate 10. The second limiting rod 23 is located in the movable groove and is not inserted into the limiting groove 25 on the fixing ring 24 in the middle of the column 9. After the connecting rod 5 is installed between the mounting plate 10 and the truss platform 1, the movable block 20 is located at the top of the mounting plate 10. Then, the two ends of the fixed block 6 are installed with the fixing rod 13 and the connecting rod 5 respectively, so that the fixed block 6 can fix the fixing rod 13 and the connecting rod 5. This pushes the telescopic rod 19 to deflect, causing the movable block 20 to move along the top of the mounting plate 10 towards the fixed plate 11. The moving block 20 drives the first limiting rod 21 to pass through the movable opening on the fixed plate 11 and insert into the limiting groove 25 on the fixed ring 24 at the top of the mounting plate 10. The moving block 20 also drives the moving rod 22 to move along the slide groove. The moving rod 22 drives the second limiting rod 23 to move along the inner wall of the movable groove and pass through the movable opening in the middle of the fixed rod 13 and insert into the limiting groove 25 on the fixed ring 24 in the middle of the column 9. The first limiting rod 21 and the second limiting rod 23 are magnetically attracted by the magnetic block, which improves the stability of the connection and reduces the probability of displacement and deformation of the connecting rod and the fixed rod. This provides a stable installation foundation for the sliding movement of the guide rod, the second pulley, and the first pulley, and avoids problems such as uneven force on the wire rope, pulley jamming, and deviation. When the first limiting rod 21 and the second limiting rod 23 fix the fixed rod 13, the telescopic rod 19 deflects and stretches towards the connecting rod 5. The telescopic rod 19, which is inclined, is in a stretched state after locking, forming a continuous oblique pre-tightening support for the fixed block 6 and the fixed plate 11. This improves the stability of the guide rod 12 and the second pulley 14 when they move, and at the same time improves the stability of the first pulley 7 when it moves. It also offsets the lateral load of wind and waves and the inertial impact of lifting and stopping, reduces the movement of components and the transmission of vibration, and improves the anti-sway performance of the overall structure of the cage.

[0026] like Figure 3 , Figure 8 and Figure 9 As shown, the wire rope 18 located at the top of the mounting base 4 is positioned between the first pulley 7 and the second pulley 14. Two sliding blocks 26 are arranged between the first mounting block 8 and the second mounting block 16, and the two sliding blocks 26 are arranged in a rotationally symmetrical manner. The bottom of the sliding blocks 26 is slidably connected to the top of the mounting base 4, and the two sliding blocks 26 are fixedly connected to the first mounting block 8 and the second mounting block 16 respectively by compression springs 27. The first mounting block 8, the second mounting block 16, the compression springs 27, and the sliding blocks 26 are located at the top edge of the mounting base 4. When the net cage sways to one side, the compression spring 27 on the corresponding side is compressed and absorbs energy. When the net cage sways to the other side, the compression spring 27 on the other side is compressed and absorbs energy.

[0027] During normal use, when the wire rope 18 is extended or retracted, it guides the first pulley 7 and the second pulley 14 to drive the mounting base 4 and the net cage to rise and fall smoothly. At this time, the net cage is under stable force, the wire rope tension is stable, and the sliding block 26 and the compression spring 27 are in their initial state. Since the wire rope 18 located at the top of the mounting base 4 is between the first pulley 7 and the second pulley 14, the wire rope 18 can drive the mounting base 4 to move when it retracts. This allows the mounting base 4 to drive the first pulley 7 and the second pulley 14 to move along the connecting rod 5 and the guide rod 12 respectively through the first mounting block 8, the second mounting block 16 and the fixed base 15, facilitating the raising and lowering of the net cage 3. When the net cage 3 is impacted by wind and waves during the raising and lowering process, the net cage causes the mounting base 4 to move horizontally. The swaying motion causes the stressed end of the wire rope 18 to shift, and the tension of the wire rope pulls the corresponding sliding block 26, causing it to slide along the top of the mounting base 4 towards the mounting block. When the sliding block 26 slides, it compresses the corresponding compression spring 27, causing the compression spring 27 to undergo elastic deformation. The compression spring 27 absorbs the impact energy generated by the swaying motion through elastic contraction, while limiting the displacement amplitude of the sliding block 26, thus preventing a sudden change in the tension of the wire rope. After the impact of the wind and waves disappears, the compression spring 27 rebounds, causing the sliding block 26 to reset, and the tension of the wire rope returns to stability. This effectively attenuates the swaying of the cage, further buffering the inertial impact of lifting and stopping and offsetting the lateral wind and wave load, preventing long-term stress from causing components to loosen or be damaged.

[0028] Working principle of this invention: Reference Figures 1 to 9As shown, in use, the columns 9 are installed at the four corners of the truss platform 1, and the mounting plate 10 and support rods are installed on the columns 9. Two fixing plates 11 are then installed at the bottom of the truss platform 1 and the top of the mounting plate 10, respectively. The fixing rod 13 and guide rod 12 are installed between the truss platform 1 and the mounting plate 10. The connecting rod 5 is installed in the middle of the mounting plate 10 and the truss platform 1. The two ends of the fixing block 6 are then installed to the middle of the fixing rod 13 and one side of the connecting rod 5, respectively. In the initial state, the moving block 20 and the first limiting rod 21 are away from the fixing plate 11. The first limiting rod 21 is not inserted into the limiting groove 25 on the fixing ring 24 at the top of the mounting plate 10. The second limiting rod 23 is located in the movable groove and is not inserted into the limiting groove 25 on the fixing ring 24 in the middle of the column 9. When the connecting rod 5 is installed on the mounting plate 10... After mounting plate 10 is positioned between the mounting plate 10 and the truss platform 1, the movable block 20 is positioned on top of the mounting plate 10, pushing the telescopic rod 19 to deflect, causing the movable block 20 to move along the top of the mounting plate 10 toward the fixed plate 11. The movable block 20 drives the first limiting rod 21 to pass through the movable opening on the fixed plate 11 and insert into the limiting groove 25 on the fixed ring 24 at the top of the mounting plate 10. The movable block 20 also drives the movable rod 22 to move along the slide groove. The movable rod 22 drives the second limiting rod 23 to move along the inner wall of the movable groove and pass through the movable opening in the middle of the fixed rod 13 and insert into the limiting groove 25 on the fixed ring 24 in the middle of the column 9. When the first limiting rod 21 and the second limiting rod 23 fix the fixed rod 13, the telescopic rod 19 deflects and stretches toward the connecting rod 5. The inclined telescopic rod 19 can support and fix the fixed block 6 and the fixed plate 11.

[0029] Next, the mounting base 4 is installed at the bottom of the net cage 3, so that the mounting base 4 and the net cage 3 are placed in the middle of the truss platform 1. Then, the fixed seat 15 and the second pulley 14 are installed on the mounting base 4 through the second mounting block 16, so that the second pulley 14 is slidably connected to the guide rod 12. The first pulley 7 is installed on the mounting base 4 through the first mounting base 4, so that the first pulley 7 is slidably connected to the connecting rod 5. When the four sets of winches 17 are started and drive the wire rope 18 to retract simultaneously, the wire rope 18 drives the mounting base 4 to move upward. Since the first mounting block 8, the fixed seat 15 and the first pulley 7 are located at the four corners of the top of the mounting base 4, the second mounting block 16 drives the fixed seat 15 and the second pulley 14 to move upward along the guide rod 12. The second pulley 14 is located between the two adjacent first mounting blocks 8 and the second pulley 14, so that when the mounting base 4 moves, it can drive the first mounting base 4 and the first pulley 7 to move, so that the first pulley 7 moves along the connecting rod 5, increasing the force-bearing area. At the same time, the steel wire rope 18 at the top of the net box 3 retracts, causing the net box 3 to retract and fold for adjustment. When the net box 3 is impacted by wind and waves during lifting, the sliding block 26 moves along the top of the mounting base 4 and squeezes the compression spring 27, causing the compression spring 27 to contract. Through the action of the sliding block 26 and the compression spring 27, the net box 3 is buffered when it shakes, improving the stability of the installation of the first pulley 7 and the second pulley 14, buffering the inertial impact of lifting and stopping and offsetting the lateral wind and wave load, avoiding long-term stress that could cause the components to loosen or be damaged.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A lifting device for aquaculture cage guide rails, comprising a truss platform (1), characterized in that: The truss platform (1) is provided with an installation frame (2) at the bottom. The top of the truss platform (1) and the four sides of the installation frame (2) are provided with pulley lifting structures. The truss platform (1) is provided with a net box (3) in the middle. The bottom of the net box (3) is fixedly connected with an installation seat (4). The truss platform (1) and the installation frame (2) are provided with adjustment components. The adjustment assembly includes a connecting rod (5), a fixing block (6), a first pulley (7), and a first mounting block (8). The mounting frame (2) is provided with a connecting rod (5) on the side near the net cage (3). The bottom end of the connecting rod (5) is slidably connected to the first pulley (7) on the side near the mounting base (4). The first pulley (7) is fixedly connected to the first mounting block (8). The first mounting block (8) is fixedly connected to the mounting base (4). The connecting rod (5) is fixedly connected to the fixing block (6) on the side away from the first pulley (7).

2. The aquaculture cage guide rail lifting device according to claim 1, characterized in that: The mounting frame (2) includes columns (9), mounting plates (10) and support rods. The columns (9) are fixedly connected to the four corners of the truss platform (1). The bottom of the columns (9) is fixedly connected to the mounting plates (10). Support rods are provided between two adjacent columns (9). The upper and lower sides of the support rods are fixedly connected to the top of the mounting plates (10) and the bottom of the truss platform (1) respectively. The connecting rod (5) is fixedly connected between the truss platform (1) and the mounting plates (10). The connecting rod (5), the fixing block (6) and the support structure are located on the side of the support rods near the net cage (3).

3. The aquaculture cage guide rail lifting device according to claim 2, characterized in that: The pulley lifting structure includes a drive structure, a fixed plate (11), a guide rod (12), a fixed rod (13), a second pulley (14), a fixed seat (15), and a second mounting block (16). The two fixed plates (11) are respectively fixedly installed at the bottom of the truss platform (1) and the top of the mounting plate (10). The guide rod (12) is fixedly connected to the middle of the two fixed plates (11), and the fixed rod (13) is fixedly connected to both ends of the two fixed plates (11). The second pulley (14) is slidably connected to the bottom end of the guide rod (12). The fixed seat (15) is fixedly connected to the side of the second pulley (14) away from the guide rod (12). The second mounting block (16) is fixedly connected to the bottom of the fixed seat (15), and the second mounting block (16) is fixedly connected to the mounting seat (4).

4. The aquaculture cage guide rail lifting device according to claim 3, characterized in that: The drive structure includes a winch (17) and a wire rope (18). There are four sets of winches (17), which are fixedly installed on the top of the truss platform (1). Each set of winches (17) is fixedly connected to a wire rope (18). The wire ropes (18) connected to the two sets of winches (17) are fixedly connected to the top of the mounting base (4) and the top of the net box (3), respectively.

5. The aquaculture cage guide rail lifting device according to claim 4, characterized in that: The fixed block (6) is fixedly connected to the middle of the fixed rod (13) at the end away from the connecting rod (5). The support structure is symmetrically arranged with respect to the center of the connecting rod (5). The first mounting block (8), the fixed seat (15) and the first pulley (7) are located at the four corners of the top of the mounting seat (4).

6. The aquaculture cage guide rail lifting device according to claim 5, characterized in that: The fixed block (6) is connected to the pulley lifting assembly. The fixed block (6) and the pulley lifting assembly are provided with a support structure. The support structure includes a telescopic rod (19), a movable block (20), a first limiting rod (21), a movable rod (22), a second limiting rod (23), and a fixing ring (24). One end of the telescopic rod (19) is hinged to the bottom of the fixed block (6), and the other end is hinged to the movable block (20). The bottom of the movable block (20) is slidably connected to the top of the mounting plate (10). The first limiting rod (21) is fixedly connected to one side of the movable block (20). The movable rod (22) is fixedly connected to the top of the movable block (20). The second limiting rod (23) is fixedly connected to the top of the movable rod (22). The second limiting rod (23) is set inside the fixed block (6). Two fixing rings (24) are fixedly connected to the column (9).

7. The aquaculture cage guide rail lifting device according to claim 6, characterized in that: The telescopic rod (19) is located between the fixed block (6) and the mounting plate (10), and the telescopic rod (19) is inclined on both sides of the connecting rod (5). The fixed block (6) has a movable groove at one end near the fixed rod (13). The second limiting rod (23) is slidably connected to the inner wall of the movable groove. The bottom of the fixed block (6) near the fixed rod (13) has a sliding groove. The top of the moving rod (22) extends through the sliding groove into the movable groove. Both sides of the second limiting rod (23) are slidably connected to the movable groove.

8. The aquaculture cage guide rail lifting device according to claim 7, characterized in that: The fixed plate (11) has an opening near the fixed block (6) and the bottom of the fixed rod (13). The two fixed rings (24) are located between the truss platform (1) and the mounting plate (10). The two fixed rings (24) have two limiting grooves (25). The first limiting rod (21) passes through the opening and is inserted into the limiting groove (25) on the lower fixed ring (24). The second limiting rod (23) passes through the opening and the middle of the fixed rod (13) and is inserted into the limiting groove (25) on the upper fixed ring (24).

9. The aquaculture cage guide rail lifting device according to claim 8, characterized in that: The wire rope (18) located at the top of the mounting base (4) is located between the first pulley (7) and the second pulley (14). Two sliding blocks (26) are provided between the first mounting block (8) and the second mounting block (16). The two sliding blocks (26) are arranged in a rotationally symmetrical manner. The bottom of the sliding block (26) is slidably connected to the top of the mounting base (4). The two sliding blocks (26) are fixedly connected to the first mounting block (8) and the second mounting block (16) respectively by compression springs (27). The first mounting block (8), the second mounting block (16), the compression springs (27) and the sliding blocks (26) are located at the top edge of the mounting base (4).

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