Truss type net cage and lifting mechanism thereof

Abstract

The invention belongs to the technical field of net cages, and particularly discloses a truss type net cage and a lifting mechanism thereof.The truss type net cage and the lifting mechanism thereof comprise a net cage body, a switching mechanism is arranged on the net cage body and used for adjusting the net cage to ascend and descend, and the switching mechanism comprises two mounting blocks arranged on the net cage body; a cavity is formed between the two mounting blocks, and a standby rack is arranged in the cavity and used for containing and protecting the standby rack. The standby rack and the transmission rack are switched through the driving mechanism, water layer adjustment interruption and fish school stress reaction caused by net cage inclination directly caused by abrasion of the transmission rack are prevented, then the culture survival rate is increased, the culture production continuity is guaranteed, the transmission rack and the standby rack are periodically switched, and the culture efficiency is improved. The transmission rack and the standby rack share the load, excessive loss of the single transmission rack and the standby rack is avoided, and the service life of the transmission rack and the standby rack is prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of net cages, and particularly relates to a truss type net cage and a lifting mechanism thereof. BACKGROUND

[0002] The truss type net cage is a deep-sea aquaculture facility with a light-weight steel structure truss as a support frame. The truss structure constructed by high-strength steel provides stable support, and is equipped with a lifting system, netting and auxiliary equipment, so that efficient aquaculture can be carried out under complex sea conditions. Its core features are: light and stable structure, capable of resisting 16-17 level typhoons; lifting function, capable of adjusting the aquaculture water layer according to requirements; large aquaculture capacity, with a single net cage water body of tens of thousands of cubic meters.

[0003] In the prior art, a driving motor and a gear structure are provided on the side of the net cage. The motor drives the gear to rotate, and the gear drives the entire net cage frame to stably ascend and descend along the pile leg through the meshing transmission of the gear and the rack of the pile leg. However, in the process of use, the rack on the net cage is prone to sudden breakage or jamming due to wind and wave impact, biological attachment wear, corrosion fatigue, which directly causes the net cage to tilt, so the lifting system needs to be disassembled and the operation needs to be stopped, resulting in interruption of water layer adjustment and fish stress reaction, which is not convenient for improving the survival rate of aquaculture.

[0004] Therefore, it is necessary to invent a truss type net cage and a lifting mechanism thereof to solve the above problems. SUMMARY

[0005] In view of the above problems, the present application provides a truss type net cage and a lifting mechanism thereof to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: A truss type net cage and a lifting mechanism thereof, comprising a net cage body, a switching mechanism is arranged on the net cage body for adjusting the net cage body to ascend and descend, the switching mechanism comprises: Two mounting blocks are arranged on the net cage body, a cavity is arranged between the two mounting blocks, a standby rack is arranged in the cavity for placing and protecting the standby rack, the standby racks are symmetrically arranged in the cavity for switching to keep the net cage body stable during ascending and descending; A first fixing block is arranged on the top of the two mounting blocks, a driving structure is arranged in the first fixing block, the driving structure is connected with the standby rack for driving the standby rack to move.

[0007] Further, the net cage body comprises a mounting platform, a pipe pile, a truss, a moving seat and a gear and rack transmission structure, a plurality of pipe piles are fixedly connected to the mounting platform, moving seats are arranged at the upper and lower ends of the plurality of pipe piles, the pipe pile and the moving seat are connected through the truss, two mounting blocks are sleeved outside the pipe pile, a gear and rack transmission structure is arranged outside the mounting block on the outside, and the gear and rack transmission structure is used to drive the moving seat and the truss to move.

[0008] Further, a first connecting block is fixedly connected to the moving seat at the top end of the pipe pile, and is used to mount the gear and rack transmission structure; the moving seat is movably connected to the outside of the pipe pile; the bottom of the mounting block on the outside is fixedly connected to the bottom end of the pipe pile; the bottom of the mounting block on the inside is rotatably connected to the bottom end of the pipe pile; an installation opening is formed in the side of the mounting block on the outside, close to the gear and rack structure; and the installation opening and the standby rack are cross-shaped.

[0009] Further, the gear and rack transmission structure comprises a second driving member and a transmission rack, the second driving member is arranged on the first connecting block, the second driving member is provided with the transmission rack on one side, the transmission rack is located at the installation opening, the transmission rack is connected to the bottom of the first gear through a moving plate on the top, the second driving member and the transmission rack are symmetrically arranged on the two sides of the mounting block on the outside, and are used to stably lift the moving seat and the truss.

[0010] Further, the driving structure comprises a first driving member and a first gear, the first driving member is located in the first fixed block, and the first driving member is located on one side of the pipe pile; the first driving member is provided with the first gear on one side; the first gear is located between the top end of the mounting block on the outside and the top end of the pipe pile; the first gear is rotatably connected to the outside of the top end of the pipe pile in the middle; the moving plate is movably connected to the bottom of the first gear; and the bottom of the moving plate is fixedly connected to the standby rack.

[0011] Further, an electric push rod is fixedly connected to the inner wall of the cavity, the electric push rod is fixedly connected to the transmission rack and the standby rack, the electric push rod is located at the upper and lower ends of the transmission rack and the standby rack, the first fixed block is located at the top of the transmission rack, and a buffer block is arranged between the top of the transmission rack and the first fixed block and between the bottom of the transmission rack and the bottom end of the pipe pile, and the buffer block is located on one side of the moving plate.

[0012] Further, a fixing mechanism is arranged in the middle of the transmission rack and the standby rack, the fixing mechanism comprises a first motor, a rotating shaft, a movable plate, a pushing member and a second fixed block, the first motor is located inside the transmission rack or the standby rack, the first motor is fixedly connected with the rotating shaft at the output end, the movable plate is threadedly connected to the rotating shaft, the movable plate is movably connected to the inner wall of the transmission rack or the standby rack, the pushing member is hinged to the two ends of the movable plate, and the second fixed block is hinged to the pushing member.

[0013] Further, the second connecting block is arranged on both sides of the top end of the transmission rack, the second fixed block is inserted with the second connecting block, the second connecting block is fixedly connected to the bottom of the first fixed block, the bottom end of the rotating shaft is rotatably connected with the inner wall of the bottom of the transmission rack or the standby rack, and the pushing piece is slidably connected with the inner wall of the transmission rack or the standby rack.

[0014] Further, the bottom end of the transmission rack or the standby rack is internally provided with a limiting structure, the limiting structure comprises a moving piece, a sliding block and a plug rod, the moving piece is arranged at the bottom end of the transmission rack or the standby rack, the sliding block is arranged on the moving piece and used for driving the sliding block to move along the inner wall of the bottom end of the transmission rack or the standby rack, and the plug rod is fixedly connected to the bottom of the sliding block and inserted into the bottom of the transmission rack or the standby rack.

[0015] Further, the bottom end of the rotating shaft is connected with the moving piece through the mounting plate, the plug rods are symmetrically arranged on both sides of the sliding block, and the plug rods are arranged on both sides of the buffer block at the bottom of the transmission rack, so as to limit the position of the transmission rack.

[0016] Technical effects and advantages of the present application: 1. The standby rack and the transmission rack are switched by the driving mechanism, so that the transmission rack is prevented from being directly caused to tilt the net cage due to abrasion, the water layer adjustment is prevented from being interrupted, the fish school is prevented from being stressed, the survival rate of breeding is improved, the continuity of breeding production is ensured, the transmission rack and the standby rack share the load by periodically switching the transmission rack and the standby rack, the single transmission rack and the standby rack are prevented from being excessively worn, and the service life of the transmission rack and the standby rack is improved.

[0017] 2. The position of the transmission rack or the standby rack is limited by the fixing mechanism and the limiting structure, the standby rack is prevented from being out of gear and sliding out, the transmission rack and the standby rack are kept stable during use, the net cage body is kept stable during lifting, and the switching precision is ensured. DRAWINGS

[0018] Figure 1 is a whole structure schematic view of the embodiment of the present application; Figure 2 is a structure view of the pipe pile, the gear and rack transmission structure and the mounting block of the embodiment of the present application; Figure 3 is a structure view of the gear and rack transmission structure and the driving mechanism of the embodiment of the present application; Figure 4 is a sectional view of the mounting block and the pipe pile of the embodiment of the present application; Figure 5 is a structure view of the pipe pile and the mounting block of the embodiment of the present application; Figure 6 is an internal structure view of the cavity of the embodiment of the present application; Figure 7 This is a cross-sectional view of the pipe pile and transmission rack in an embodiment of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged view of point A; Figure 9 This is the present invention. Figure 7 Enlarged view of point B; Figure 10 This is a structural diagram of the fixing mechanism and limiting structure in an embodiment of the present invention.

[0019] In the diagram: 1. Gymnasium body; 2. Mounting block; 3. Spare rack; 4. First fixing block; 5. Pipe pile; 6. Truss; 7. Movable seat; 8. First connecting block; 9. First gear; 10. Movable plate; 11. Transmission rack; 12. Second motor; 13. Transmission wheel; 14. Third motor; 15. Second gear; 16. Electric push rod; 17. Buffer block; 18. First motor; 19. Rotating shaft; 20. Movable plate; 21. Push plate; 22. Second fixing block; 23. Second connecting block; 24. Moving part; 25. Slider; 26. Insert rod. Detailed Implementation

[0020] 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.

[0021] This invention provides a truss-type wire mesh cage and its lifting mechanism, such as... Figures 1 to 6 As shown, the device includes a cage body 1, on which a switching mechanism is provided for adjusting the raising and lowering of the cage body 1. The switching mechanism includes mounting blocks 2, spare racks 3, a first fixing block 4, and a drive structure. Two mounting blocks 2 are mounted on the cage body 1, and each mounting block 2 has a cavity. The spare racks 3 are placed inside the cavity for placement and protection. The spare racks 3 are symmetrically arranged within the cavity, providing an installation reference for the gear and rack transmission structure and the switching mechanism. The first fixing block 4 is located on top of the mounting blocks 2, and a drive structure is provided inside the first fixing block 4. The moving structure and the driving structure are connected to the spare rack 3 to drive the spare rack 3 to move. The cage body 1 is hexagonal and includes an installation platform, pipe piles 5, truss 6, movable seat 7 and gear and rack transmission structure. Multiple pipe piles 5 are fixedly connected to the installation platform to provide a guide reference for lifting. Movable seats 7 are provided at both the upper and lower ends of the multiple pipe piles 5. Both ends of the truss 6 are fixedly connected to the movable seats 7. The installation block 2 is sleeved on the outside of the pipe pile 5. The gear and rack transmission structure is provided on the outside of the installation block 2 to drive the movable seat 7 and the truss 6 to move.

[0022] The gear rack transmission structure comprises a second driving member and a transmission rack 11, the second driving member comprises a second motor 12, a transmission shaft, a transmission wheel 13 and a displacement sensor, the output end of the second motor 12 is fixedly connected with the transmission shaft, the transmission shaft is fixedly connected with the transmission wheel 13, the second motor 12 is fixedly connected on the first connecting block 8 through a mounting seat, the displacement sensor is fixed at the rotating shaft end of the transmission wheel 13 and coaxial with the transmission shaft, for measuring the rotating displacement of the transmission wheel 13, the second driving member is provided with the transmission rack 11 on one side, the transmission wheel 13 is engaged with the transmission rack 11, the transmission rack 11 is located at the mounting port, the top of the transmission rack 11 is fixedly connected with a moving plate 10, the moving plate 10 is connected with the bottom of the first gear 9, the second motor 12, the transmission shaft, the transmission wheel 13, the displacement sensor and the transmission rack 11 located on the two sides of the outer mounting block 2 are symmetrically arranged, for stably lifting the moving seat 7 and the truss 6.

[0023] The first connecting block 8 is fixedly connected on the moving seat 7 at the top end of the pipe pile 5, for installing the gear rack transmission structure, the moving seat 7 is movably connected with the pipe pile 5, the bottom of the outer mounting block 2 is fixedly connected with the bottom end of the pipe pile 5, the top of the inner mounting block 2 is fixedly connected with the bottom of the first gear 9, the bottom of the inner mounting block 2 is fixedly connected with the bottom end of the pipe pile 5, and the bottom of the inner mounting block 2 is rotatably connected with the bottom of the pipe pile 5, the mounting port is provided on the side of the outer mounting block 2 close to the gear rack structure, and the mounting port and the standby rack 3 are cross-shaped.

[0024] The net cage body 1 is composed of a hexagonal frame structure through the pipe pile 5, the moving seat 7 and the truss 6, the first connecting block 8 is convenient for installing the gear and rack transmission structure, the mounting seat is convenient for improving the stability of the installation of the second motor 12, the transmission shaft and the transmission wheel 13, improving the stability of the meshing with the transmission wheel 13, the standby rack 3 is retracted in the cavity in the initial state and does not participate in transmission, and the cavity is prevented from corrosion, biological adhesion and mechanical collision, the transmission wheel 13 of the second driving part is meshed with the transmission rack 11, when the second motors 12 symmetrically arranged on both sides of the mounting block 2 on the outer side are started and run synchronously, the balance of power on both sides is ensured, and the net cage is prevented from tilting due to unbalanced power on one side, when the transmission shaft is driven to rotate by the output end of the second motor 12, the transmission wheel 13 fixed coaxially is synchronously rotated, the displacement sensor collects the rotation angle signal of the transmission wheel 13 in real time, the rotation displacement of the transmission wheel 13 is directly measured, the rotation angle is compared with the theoretical value, whether the transmission rack 11 is stuck, damaged or has a crack at the tooth root is judged, and the collected rotation displacement data is transmitted to the controller in real time, the controller converts the actual lifting height of the net cage according to the number of teeth of the transmission wheel 13 and the modulus of the transmission rack 11, and compares it with the preset target height, the lifting speed and position of the net cage are monitored in real time, when the transmission wheel 13 moves, the mounting seat, the first connecting block 8 and the moving seat 7 slide along the pipe pile 5, since the moving seat 7 is rigidly connected with the truss 6, the truss 6 and the net cage body 1 are synchronously lifted.

[0025] When it is detected that the transmission rack 11 needs to be replaced due to wear, the displacement sensor triggers a quick switch through abnormal monitoring, the driving structure in the first fixed block 4 is started, the transmission rack 11 is moved into the cavity by the electric push rod 16, the first gear 9 is rotated under the action of the driving structure, the standby rack 3 symmetrically arranged in the cavity is replaced with the transmission rack 11, and is pushed under the action of the electric push rod 16, the standby rack 3 moves to the installation port and is meshed with the transmission wheel 13 on both sides, since the standby rack 3 is symmetrically arranged, symmetric support is formed after meshing, the center of force of the net cage body 1 is unchanged, after the standby rack 3 is meshed in place, the gear and rack transmission mechanism can continue to be used to lift the net cage body 1.

[0026] As Figures 2 to 4As shown, the driving structure includes a first driving member and a first gear 9, the first driving member is located on one side of the pipe pile 5, and the first driving member is provided with the first gear 9 on one side, the driving member includes a third motor 14, a rotating rod and a second gear 15, the third motor 14 is fixedly connected in the first fixed block 4, the output end of the third motor 14 is fixedly connected with the rotating rod, the rotating rod is fixedly connected with the second gear 15, the second gear 15 is engaged with the first gear 9, the first gear 9 is located between the top of the two mounting blocks 2 and the pipe pile 5, the middle part of the first gear 9 is rotatably connected with the top outside of the pipe pile 5, and the bottom of the first gear 9 is movably connected with the moving plate 10, and the bottom of the moving plate 10 is fixedly connected with the standby rack 3.

[0027] The first fixed block 4 can protect the driving member from being damaged to affect the switching of the standby rack 3 and the transmission rack 11, and the moving plate 10 can be connected with the moving plate 10 and the first gear 9, so that when the third motor 14 drives the rotating rod and the second gear 15 to rotate, the first gear 9 can drive the moving plate 10, the mounting block 2 located on the inner side and the standby rack 3 to rotate inside the cavity, so that the standby rack 3 and the transmission wheel 13 are switched, and the symmetrically arranged standby rack 3 can continue to engage with the transmission wheel 13, so that the net cage body 1 is kept stable and the breeding production continuity is ensured.

[0028] As shown in the drawings, Figures 4 to 6 The upper and lower ends of the mounting block 2 located on the inner side are both provided with mounting grooves, and the electric push rod 16 is fixedly connected in the mounting groove, the far end of the electric push rod 16 from the mounting groove is fixedly connected with the transmission rack 11 and the standby rack 3, the first fixed block 4 is located on the top of the transmission rack 11, and the buffer block 17 is arranged between the top of the transmission rack 11 and the first fixed block 4 and between the bottom of the transmission rack 11 and the bottom end of the pipe pile 5, the buffer block 17 is located on one side of the moving plate 10, and the material of the buffer block 17 is polyurethane, which is used to protect the transmission rack 11 or the standby rack 3 at the mounting port.

[0029] When the standby rack 3 needs to be switched, the electric push rod 16 is used to drive the transmission rack 11 to move into the cavity, so that the moving plate 10 moves along the bottom of the first gear 9, and then the driving member is used to drive the first gear 9 to drive the moving plate 10, the transmission rack 11 and the standby rack 3 to rotate, so that the transmission rack 11 and the standby rack 3 change positions, and then the electric push rod 16 is used to drive the standby rack 3 to move to one side of the transmission wheel 13 and engage with the transmission wheel 13, and the buffer block 17 can avoid the local indentation caused by the hard top of the tooth surface when the net cage body 1 is lifted to the limit position, thereby prolonging the service life of the standby rack 3 and the transmission rack 11.

[0030] As shown in the drawings, Figures 7 to 10As shown, the transmission rack 11 and the middle of the standby rack 3 are provided with a fixing mechanism, the fixing mechanism includes a first motor 18, a rotating shaft 19, a movable plate 20, a pusher and a second fixed block 22, the first motor 18 is located inside the transmission rack 11 or the standby rack 3, the output end of the first motor 18 is fixedly connected with the rotating shaft 19, the rotating shaft 19 is threadedly connected with the movable plate 20, the movable plate 20 is movably connected with the inner wall of the transmission rack 11 or the standby rack 3, the movable plate 20 is hingedly connected with the pusher at both ends, the pusher includes a push plate 21 and a moving block, one end of the push plate 21 is hingedly connected with the bottom of the movable plate 20, the other end is hingedly connected with the moving block, the pusher is hingedly connected with the second fixed block 22, the transmission rack 11 is provided with a second connecting block 23 at the top of both sides, the second fixed block 22 is inserted with the second connecting block 23, the second connecting block 23 is fixedly connected with the bottom of the first fixed block 4, the bottom end of the rotating shaft 19 is rotatably connected with the bottom inner wall of the transmission rack 11 or the standby rack 3, and the moving block is slidably connected with the inner wall of the transmission rack 11 or the standby rack 3.

[0031] The rotating shaft 19 is rotated by the first motor 18, and the rotating shaft 19 drives the movable plate 20 to rotate, and since the movable plate 20 is movably connected with the inner wall of the transmission rack 11 or the standby rack 3, when the movable plate 20 moves downward along the rotating shaft 19, the push plate 21 hingedly connected at both sides rotates outward synchronously around the hinge point, since the bottom end of the push plate 21 is hingedly connected with the moving block, the moving block moves inward along the inner wall of the transmission rack 11 or the standby rack 3 to the second connecting block 23, so that the second fixed block 22 is inserted with the second connecting block 23, thereby limiting the top of the transmission rack 11 or the standby rack 3, supporting the transmission rack 11 or the standby rack 3, improving the stability of the gear and rack transmission structure driving the net cage to move, preventing the transmission rack 11 or the standby rack 3 from rising too much to disengage with the transmission wheel 13, avoiding the net cage body 1 from falling due to losing support, and the fixing mechanism is integrated in the inside of the standby rack 3 or the transmission rack 11, which can be protected when not in use, ensuring the strength of the structure.

[0032] As shown in the figure, Figures 7 to 10 The bottom end of the transmission rack 11 or the standby rack 3 is provided with a limiting structure inside, which limits the transmission rack 11 or the standby rack 3, facilitating subsequent installation, the limiting structure includes a moving piece 24, a sliding block 25 and a plug rod 26, the bottom end of the transmission rack 11 or the standby rack 3 is provided with the moving piece 24, the moving piece 24 is a threaded rod, the threaded rod is threadedly connected with the sliding block 25, and the sliding block 25 is used to drive the sliding block 25 to move along the inner wall of the bottom end of the transmission rack 11 or the standby rack 3, the sliding block 25 is fixedly connected with the plug rod 26 at the bottom, two insertion grooves are formed in the bottom end of the pipe pile 5, the plug rod 26 is inserted into the insertion grooves through the bottom of the rack, the bottom end of the rotating shaft 19 is connected with the moving piece 24 through the mounting plate, the plug rod 26 is symmetrically arranged at both sides of the sliding block 25, and the plug rod 26 is located at both sides of the buffer block 17 at the bottom of the transmission rack 11, which is used to limit the position of the transmission rack 11.

[0033] The threaded rod is connected to the rotating shaft 19 through the mounting plate, and when the rotating shaft 19 rotates, the threaded rod can be driven to rotate. Since the sliding block 25 is in sliding connection with the inner wall of the transmission wheel 13 or the standby gear, the sliding block 25 can move downward along the threaded rod and drive the insertion rod 26 to move downward. When the second fixing block 22 in the fixing mechanism is inserted with the second connecting block 23, the insertion rod 26 is inserted through the bottom of the standby rack 3 or the transmission rack 11 and is inserted into the insertion slot, thereby limiting the bottom of the standby rack 3 or the transmission rack 11, improving the stability of the installation of the standby rack 3 or the transmission rack 11 at the mounting port, preventing the transmission rack 11 or the standby rack 3 from excessively descending and being separated from the transmission wheel 13, and thereby improving the stability of the net cage body 1 in severe sea conditions and reducing the shaking amplitude.

[0034] The working principle of the present application is as follows: Referring to Figures 1 to 10 As shown in the initial state, the standby rack 3 is retracted in the cavity, the electric push rod 16 connected with the standby rack 3 is in a retracted state, the transmission wheel 13 is located at the mounting port, and the electric push rod 16 connected with the transmission wheel 13 is in an elongated state. The second fixing block 22 of the fixing mechanism in the transmission rack 11 is inserted with the second connecting block 23, and the insertion rod 26 is inserted with the insertion slot at the bottom end of the pipe pile 5. When the net cage body 1 needs to be lifted, the second motor 12 is started to drive the transmission shaft to rotate, the transmission shaft drives the coaxially fixed transmission wheel 13 to rotate synchronously, so that the transmission wheel 13 and the transmission rack 11 are in meshing engagement, the transmission wheel 13 drives the movement along the transmission wheel 13, and thereby drives the mounting seat, the first connecting block 8 and the moving seat 7 to move along the outer side of the mounting block 2, drives the entire truss 6 and the net cage body 1 to synchronously lift. When the transmission shaft drives the transmission wheel 13 to rotate, the displacement sensor transmits the collected rotation displacement data to the controller in real time, the controller converts the actual lifting height of the net cage body 1 according to the number of teeth of the transmission wheel 13 and the modulus of the transmission rack 11, and compares it with the preset target height to monitor the lifting speed and position of the net cage body 1 in real time.

[0035] When the transmission rack 11 is stuck, damaged or has a crack at the tooth root, the first motor 18 in the transmission rack 11 is started to drive the rotating shaft 19 to rotate. Since the movable plate 20 is movably connected with the inner wall of the transmission rack 11, the push plate 21 is hingedly connected with the movable plate 20 and the moving block at both ends, so that when the movable plate 20 moves upward along the rotating shaft 19, the push plate 21 is deflected, the moving block and the second fixing block 22 are moved to the middle part of the transmission rack 11, and the second connecting block 23 is no longer inserted, and at the same time, the rotating shaft 19 drives the threaded rod to rotate through the mounting plate. Since the sliding block 25 is in sliding connection with the inner wall of the transmission rack 11, the sliding block 25 drives the insertion rod 26 to move upward into the transmission rack 11, and the insertion rod 26 is no longer inserted into the insertion slot.

[0036] Then the transmission rack 11 is driven by the electric push rod 16 to move to the inside of the cavity, at the same time, the bottom moving plate 10 is driven by the transmission rack 11 to move along the bottom of the first gear 9, when the transmission rack 11 moves to the inside of the cavity, the third motor 14 is started to drive the rotating rod and the second gear 15 to rotate, so that the first gear 9 drives the moving plate 10, the transmission wheel 13, the standby rack 3 and the inside mounting block, the electric push rod 16 to rotate in the cavity, so that the standby rack 3 and the transmission wheel 13 switch positions, when the standby rack 3 moves to the mounting port, the standby rack 3 is started to connect the electric push rod 16 to push the standby rack 3 to move to the transmission wheel 13 and engage with the transmission wheel 13, then the fixing mechanism in the standby rack 3 is started, so that the second fixing block 22 in the standby rack 3 and the second connecting block 23 are inserted, at the same time, the plug rod 26 in the bottom of the standby rack 3 and the plug groove in the bottom of the pipe pile 5 are inserted, the upper and lower ends of the standby rack 3 are limited by the fixing mechanism and the limiting structure, so that the standby rack 3 keeps stable after switching, the standby rack 3 and the outside mounting block 2 are installed and fixed, then the gear and rack transmission mechanism is used to make the net cage body 1 continue to be used, so as to guarantee the continuity of breeding production.

[0037] The above examples are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A lifting mechanism for a cage of the truss type, characterized in that, The utility model relates to a net cage lifting mechanism, including: The net cage body (1) is provided with a switching mechanism for adjusting the net cage body (1) to lift, and the switching mechanism comprises: Two mounting blocks (2) are provided on the net cage body (1), a cavity is provided between the two mounting blocks (2), a standby rack (3) is provided in the cavity for placing and protecting the standby rack (3), and the standby rack (3) is symmetrically arranged in the cavity to keep the net cage body (1) stable during lifting and switching; A first fixed block (4) is provided on the top of the two mounting blocks (2), a driving structure is provided in the first fixed block (4), the driving structure is connected with the standby rack (3), and the driving structure is used to drive the standby rack (3) to move.

2. A net cage of the truss type, characterized in that: The utility model relates to a net cage lifting mechanism, including:

3. A net cage according to claim 2, characterised in that: A first connecting block (8) is fixedly connected to the top end of the moving seat (7) of the pipe pile (5) for installing the gear and rack transmission structure, the moving seat (7) is movably connected to the outer side of the pipe pile (5), the bottom of the outer mounting block (2) is fixedly connected to the bottom end of the pipe pile (5), the bottom of the inner mounting block (2) is rotatably connected to the bottom end of the pipe pile (5), and a mounting port is formed in the side of the outer mounting block (2) close to the gear and rack structure.

4. A cage according to claim 3, characterised in that: The gear and rack transmission structure comprises a second driving member and a transmission rack (11), the second driving member is arranged on the first connecting block (8), one side of the second driving member is provided with the transmission rack (11), the transmission rack (11) is located at the mounting port, the top of the transmission rack (11) is connected to the bottom of the first gear (9) through a moving plate (10), and the second driving member and the transmission rack (11) are symmetrically arranged on the two sides of the outer mounting block (2) to stably lift the moving seat (7) and the truss (6).

5. A lifting mechanism for a net cage according to claim 1, characterised in that: The driving structure comprises a first driving member and a first gear (9), the first driving member is located in the first fixed block (4), the first driving member is located on one side of the pipe pile (5), one side of the first driving member is provided with the first gear (9), the first gear (9) is located between the top end of the outer mounting block (2) and the top end of the pipe pile (5), the middle part of the first gear (9) is rotatably connected to the outer side of the top end of the pipe pile (5), the bottom of the first gear (9) is movably connected with the moving plate (10), and the bottom of the moving plate (10) is fixedly connected with the standby rack (3).

6. A lifting mechanism for a net cage according to claim 5, characterised in that: The inner wall of the cavity is fixedly connected with an electric push rod (16), the electric push rod (16) is fixedly connected with a transmission rack (11) and a backup rack (3), the electric push rod (16) is located at the upper and lower ends of the transmission rack (11) and the backup rack (3), the first fixed block (4) is located at the top of the transmission rack (11), and a buffer block (17) is arranged between the top of the transmission rack (11) and the first fixed block (4) and between the bottom of the transmission rack (11) and the bottom end of the pipe pile (5).

7. A lifting mechanism for a net cage according to claim 6, characterised in that: The middle parts of the transmission rack (11) and the backup rack (3) are provided with a fixing mechanism, the fixing mechanism comprises a first motor (18), a rotating shaft (19), a movable plate (20), a pusher and a second fixed block (22), the first motor (18) is located inside the transmission rack (11) or the backup rack (3), the output end of the first motor (18) is fixedly connected with the rotating shaft (19), the rotating shaft (19) is threadedly connected with the movable plate (20), the movable plate (20) is movably connected with the inner wall of the transmission rack (11) or the backup rack (3), the two ends of the movable plate (20) are hingedly connected with the pusher, and the pusher is hingedly connected with the second fixed block (22).

8. A lifting mechanism for a net cage according to claim 7, characterised in that: Second connecting blocks (23) are arranged at the top ends of the transmission rack (11) on both sides, the second fixed block (22) is inserted into the second connecting block (23), the second connecting block (23) is fixedly connected to the bottom of the first fixed block (4), the bottom end of the rotating shaft (19) is rotatably connected with the inner wall of the bottom of the transmission rack (11) or the backup rack (3), and the pusher is slidably connected with the inner wall of the transmission rack (11) or the backup rack (3).

9. A lifting mechanism for a net cage according to claim 8, characterised in that: A limiting structure is arranged inside the bottom end of the transmission rack (11) or the backup rack (3), the limiting structure comprises a moving piece (24), a sliding block (25) and a plug rod (26), the inside bottom end of the transmission rack (11) or the backup rack (3) is provided with the moving piece (24), the moving piece (24) is provided with the sliding block (25), the sliding block (25) is used for driving the sliding block (25) to move along the inner wall of the bottom end of the transmission rack (11) or the backup rack (3), and the bottom of the sliding block (25) is fixedly connected with the plug rod (26).

10. A lifting mechanism for a net cage according to claim 9, characterised in that: The bottom end of the rotating shaft (19) is connected with the moving piece (24) through a mounting plate, the plug rods (26) are symmetrically arranged on both sides of the sliding block (25), and the plug rods (26) are located on both sides of the buffer block (17) at the bottom of the transmission rack (11) and are used for limiting the position of the transmission rack (11).

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