Net cage depth limiting mechanism

Abstract

The utility model discloses a net cage depth limiting mechanism which comprises a net cage body and a floating frame, mutually symmetrical sliding blocks are arranged at the top of the net cage body, a vertical plate is arranged on the inner side of the floating frame, a movable cavity is formed in the vertical plate, the sliding blocks extend into the movable cavity to do vertical linear motion, a driving motor is arranged on the top face of the floating frame, and the driving motor extends into the movable cavity. The output end of the driving limiting control assembly controls the sliding block to linearly move up and down in the cavity, and a plurality of gravity blocks are arranged at the bottom of the net cage body. According to the utility model, by designing the structure, the technical problems that the ground anchor, the mooring rope and the heavy object are easily corroded by seawater alkalinity, the working state is difficult to observe, the emergency situation occurs, and the maintenance cannot be finished in time in the prior art are ingeniously solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cage limit, in particular to a cage depth limit mechanism. Background Technique

[0002] Cage depth limit means restricting the vertical position of the cage in water to ensure that the cage will not sink too deep or float too high due to the action of water flow, wind or other external forces, thus affecting the living conditions of cultured organisms. In order to limit the depth of the cage, a mechanical structure is needed to fix the cage. For example, in the prior art, the patent application number is CN202021537071.2, which discloses a deep-sea aquaculture cage diving depth limit device, including a pulling component and a limit control component. The pulling component is used to connect to the cage and pull the cage to dive; the limit control component is connected to the pulling component and is used to control the depth of the pulling component pulling the cage to dive. This prior art has the technical effects of being easy to control the diving depth of the deep-sea cage, accurate positioning, and by reasonably operating the limit control component, the cage can be maintained within the range of 5-10 meters below the sea surface without causing cage loss. Among them, the pulling component includes an anchor, a cable and a heavy object. The anchor is fixed on the seabed, the heavy object is suspended below the cage, one end of the cable is fixedly connected to the anchor, and the other end is wound around a pulley on the cage and connected to the heavy object. By controlling the stretching length of the cable, the sinking and rising of the cage relative to the sea surface can be controlled. However, the anchor, cable and heavy object are all buried in the seabed, making the anchor, cable and heavy object easily corroded by the alkalinity of seawater and it is not easy to observe their working states. In case of emergencies, maintenance cannot be completed in time. Content of the Utility Model

[0003] The purpose of the utility model is to provide a cage depth limit mechanism to solve the problems described in the background technique.

[0004] The technical solution of the utility model is realized as follows:

[0005] A cage depth limit mechanism includes a cage body and a floating frame. Symmetric sliding blocks are arranged at the top of the cage body. A vertical plate is arranged inside the floating frame. An active cavity is arranged inside the vertical plate. The sliding blocks extend into the active cavity and move up and down in a straight line. A driving motor is arranged on the top surface of the floating frame. The driving motor extends into the active cavity, and its output end controls the sliding blocks to move up and down in a straight line in the cavity through a driving limit control component. A plurality of gravity blocks are arranged at the bottom of the cage body;

[0006] The limit control component includes a first bevel gear, a second bevel gear, a first threaded rod, a second threaded rod, and a synchronous pulley. The output end of the driving motor is connected to the first bevel gear. The second bevel gear is sleeved on the outer surfaces of the threaded rod and the second threaded rod. The top and bottom ends of the first threaded rod and the second threaded rod are connected to the inner top surface and the inner bottom surface of the movable cavity built in the vertical plate. The first bevel gear and the second bevel gear are meshed and connected.

[0007] The sliding block is sleeved on the outer surfaces of the first threaded rod and the second threaded rod and is threadedly connected thereto. The first threaded rod and the second threaded rod are connected by the synchronous pulley.

[0008] A further technical solution is that the sliding block is provided with an expansion body adapted to slide in the movable cavity, and the expansion body is slidably connected to the inner side wall of the movable cavity.

[0009] A further technical solution is that the limit control component includes a wheel disc and a chain. One side of the wheel disc is connected to the output end of the driving motor. The wheel disc is provided with a receiving groove. One end of the chain is fixedly connected to the bottom surface of the receiving groove, and the other end is connected to the top surface of the sliding block. When the driving motor rotates the wheel disc, the sliding block is controlled to lift or lower by retracting or releasing the chain.

[0010] A further technical solution is that at least two driving motors are provided, and the output ends of the two driving motors are both connected with the wheel disc.

[0011] A further technical solution is that anti-corrosion layers are coated on the parts of the vertical plate and the screw rod located at the bottom of the floating frame.

[0012] A further technical solution is that the vertical plate is provided with an infrared sensor and a digital display screen. The infrared sensor is electrically connected to the digital display screen, and the infrared sensor is used to measure the diving distance of the sliding block.

[0013] A further technical solution is that a cable is connected to the bottom of the floating frame, and a fixed anchor is provided at the bottom end of the cable.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The floating frame is installed on the water surface to make it hover on the water surface, providing a stable bearing foundation for the hovering of the cage body. When the sliding block moves downward in the movable cavity of the vertical plate, with the cooperation of the gravity block, the cage body faces downward due to the gravity of the gravity block. When the driving motor drives the limit control component, it descends stably under the gravity provided by the gravity block, and ensures that the shape of the cage body is maintained when it descends. It is convenient for the staff to move the cage body upward through the limit control component, and the limit control component floats on the water surface, facilitating the staff to understand the operation status of the equipment in real time and complete the repair in time in case of emergencies.

[0016] 2. A part of the vertical plate at the bottom of the floating frame is coated with an anti-corrosion layer to improve its service life and ensure the good operation of the equipment at the same time.

[0017] 3. The infrared sensor and the digital display screen are used to understand the diving depth of the cage in real time, which is convenient to make a diving distance that meets the preset value intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall schematic diagram of Embodiment 1;

[0019] Figure 2 It is Figure 1 the enlarged view at A in

[0020] Figure 3 It is the schematic diagram of the vertical plate structure in Embodiment 1;

[0021] Figure 4 It is the front view structure schematic diagram of the vertical plate;

[0022] Figure 5 It is the overall schematic diagram of Embodiment 2;

[0023] Figure 6 It is Figure 5 the enlarged view at B in

[0024] Figure 7 It is the schematic diagram of the vertical plate structure in Embodiment 2.

[0025] In the figure, 1. Cage body; 2. Floating frame; 3. Sliding block; 4. Vertical plate; 5. Movable cavity; 6. Driving motor; 7. Gravity block; 8. Expanding body; 9. Disk; 10. Chain; 11. Receiving groove; 12. First bevel gear; 13. Second bevel gear; 14. First threaded rod; 15. Second threaded rod; 16. Synchronous belt pulley; 17. Infrared sensor; 18. Digital display screen; 19. Cable; 20. Fixed anchor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention will be further described in conjunction with the accompanying drawings.

[0027] Example 1

[0028] Refer to Figures 1 to 7 , the utility model provides a net cage depth limiting mechanism, which includes a net cage body 1 and a floating frame 2. Symmetrically arranged sliding blocks 3 are provided at the top of the net cage body 1. A vertical plate 4 is provided inside the floating frame 2. An active cavity 5 is arranged inside the vertical plate 4. The sliding blocks 3 extend into the active cavity 5 to perform up and down linear motion. A driving motor 6 is provided on the top surface of the floating frame 2. The driving motor 6 extends into the active cavity 5, and its output end controls the sliding blocks 3 to perform up and down linear motion in the cavity through a driving limit control component. A plurality of gravity blocks 7 are provided at the bottom of the net cage body 1.

[0029] It should be noted that the driving motor 6 is a brake motor of model Y112M-4. The chain 10 is a film pressing rope, which has the advantage of preventing seawater corrosion.

[0030] Specifically, the floating frame 2 is erected on the water surface to make it hover on the water surface, providing a stable force application basis for the hovering of the net cage body 1. When the sliding blocks 3 move downward in the active cavity 5 of the vertical plate 4, with the cooperation of the gravity blocks 7, the net cage body 1 faces downward due to the gravity of the gravity blocks 7. When the driving motor 6 drives the limit control component, it dives stably through the gravity provided by the gravity blocks 7, and ensures that the shape of the net cage body 1 is maintained when the net cage body 1 dives. It is convenient for the staff to move the net cage body 1 upward through the limit control component, and the limit control component floats on the water surface, which is convenient for the staff to understand the operation status of the equipment in real time and complete repairs in time in case of emergencies.

[0031] Preferably, the sliding block 3 is provided with an expansion body 8 adapted to slide in the active cavity 5, and the expansion body 8 is slidably connected to the inner side wall of the active cavity 5.

[0032] The expansion body 8 is used to fill the gap between the sliding block 3 and the active cavity 5, facilitating the stable up and down linear sliding of the sliding block 3 during operation.

[0033] Preferably, the vertical plate 4 is provided with an infrared sensor 17 and a digital display screen 18. The infrared sensor 17 is electrically connected to the digital display screen 18, and the infrared sensor 17 is used to measure the diving distance of the sliding block 3.

[0034] The digital display screen 18 and the infrared sensor 17 are workpieces sold conventionally in the market. The digital display screen 18 is used to receive the digital signal of the infrared sensor 17 and convert it into a visual form to display the diving distance of the net cable body. When the net cage body 1 dives, the diving depth of the net cage body 1 is detected by the infrared sensor 17. When the preset diving depth is reached, the infrared sensor 17 sends the digital signal to the digital display screen 18 and displays it as Arabic numerals, so that the staff can intuitively know the diving depth of the net cage body 1. If it does not meet the preset value, it will dive further based on the known depth until the final diving distance that meets the standard is reached, and then the diving can be stopped.

[0035] Preferably, a cable 19 is connected to the bottom of the floating frame 2, and a fixed anchor 20 is provided at the bottom end of the cable 19.

[0036] The cable 19 and the fixed anchor 20 are used to fix the floating frame 2 and prevent the floating frame 2 from moving with the ocean current.

[0037] See Figures 1 to 3 , in a preferred embodiment, the limit control assembly includes a disk 9 and a chain 10. One side of the disk 9 is connected to the output end of the drive motor 6. The disk 9 is provided with a receiving groove 11. One end of the chain 10 is fixedly connected to the bottom surface of the receiving groove 11, and the other end is connected to the top surface of the sliding block 3. When the drive motor 6 rotates the disk 9, the sliding block 3 is controlled to rise and fall by retracting or releasing the chain 10. At least two drive motors 6 are provided, and the output ends of the two drive motors 6 are both connected to the disk 9.

[0038] Exemplarily, when the drive motor 6 is started, the disk 9 at its output end releases the wound chain 10. Under the action of the gravity of the gravity block 7, the sliding block 3 moves downward in the movable cavity 5 of the vertical plate 4, and the net cage body 1 can dive in the sea water to ensure the smooth diving of the net cage body 1. When the drive motor 6 retracts the chain 10, the net cage body 1 is pulled out of the sea water and floats on the sea surface. And when the drive motor 6 is powered off and cannot rotate, a mutual reaction force is formed between the gravity block 7 and the chain 10, so that the net cage body 1 is stably floating on the sea surface.

[0039] In addition, the two drive motors 6 simultaneously control the disks 9 on both sides to stabilize the balance of the net cage body 1.

[0040] Embodiment 2

[0041] See Figures 5 to 7, compared with the previous embodiment, the limit control assembly includes a first bevel gear 12, a second bevel gear 13, a first threaded rod 14, a second threaded rod 15 and a synchronous pulley 16. The output end of the driving motor 6 is connected to the first bevel gear 12. The second bevel gear 13 is sleeved on the outer surfaces of the first threaded rod 14 and the second threaded rod 15. The top and bottom of the first threaded rod 14 and the second threaded rod 15 are connected to the inner top surface and the inner bottom surface of the movable cavity 5 built in the vertical plate 4. The first bevel gear 12 and the second bevel gear 13 are meshed and connected; the sliding block 3 is sleeved on the outer surfaces of the first threaded rod 14 and the second threaded rod 15 and is threadedly connected thereto. The first threaded rod 14 and the second threaded rod 15 are connected by the synchronous pulley 16.

[0042] It should be noted that there are no first bevel gear 12 and second bevel gear 13 in the vertical plate 4 on the right side of the cage body 1. Driven by the synchronous pulley 16, the second threaded rod 15 drives the sliding block 3 to slide on the inner side wall of the movable cavity 5.

[0043] Exemplarily, the driving motor 6 drives the first bevel gear 12 to drive the second bevel gear 13, so that the first threaded rod 14 rotates in the movable cavity 5. Under the action of the synchronous pulley 16, the second threaded rod 15 also rotates in the movable cavity 5 on the other side, so that the sliding rod sleeved on the outer surfaces of the first threaded rod 14 and the second threaded rod 15 can move downward clockwise and upward counterclockwise with the first threaded rod 14 and the second threaded rod 15, ensuring that the cage body 1 can dive or float. Under the action of the synchronous pulley 16, the first threaded rod 14 and the second threaded rod 15 can rotate synchronously, keeping the up and down sliding of the sliding block 3 synchronous, and improving the working stability.

[0044] Furthermore, the parts of the vertical plate 4 and the screw rod located at the bottom of the floating frame 2 are both coated with an anti-corrosion layer to improve their service life and ensure the good operation of the equipment at the same time.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A net cage depth limit mechanism, characterized in that: It includes a cage body and a floating frame. Symmetric sliding blocks are provided at the top of the cage body. A vertical plate is provided inside the floating frame. An active cavity is provided inside the vertical plate. The sliding blocks extend into the active cavity and move in a straight line up and down. A driving motor is provided on the top surface of the floating frame. The driving motor extends into the active cavity, and its output end controls the sliding blocks to move in a straight line up and down in the cavity through a driving limit control component. A plurality of gravity blocks are provided at the bottom of the cage body; The limit control component includes a first bevel gear, a second bevel gear, a first threaded rod, a second threaded rod and a synchronous pulley. The output end of the driving motor is connected to the first bevel gear. The second bevel gear is sleeved on the outer surfaces of the threaded rod and the second threaded rod. The top and bottom ends of the first threaded rod and the second threaded rod are connected to the inner top surface and the inner bottom surface of the active cavity provided inside the vertical plate. The first bevel gear and the second bevel gear are meshed and connected; The sliding blocks are sleeved on the outer surfaces of the first threaded rod and the second threaded rod and are threadedly connected thereto. The first threaded rod and the second threaded rod are connected by the synchronous pulley.

2. The depth limit mechanism of a net cage according to claim 1, characterized in that: The sliding blocks are provided with expansion bodies adapted to slide in the active cavity. The expansion bodies are slidably connected to the inner side walls of the active cavity.

3. The depth limit mechanism of a cage according to claim 1, characterized in that: The limit control component includes a disc and a chain. One side of the disc is connected to the output end of the driving motor. The disc is provided with a receiving groove. One end of the chain is fixedly connected to the bottom surface of the receiving groove, and the other end is connected to the top surface of the sliding block. When the driving motor rotates the disc, the sliding blocks are controlled to lift by retracting or releasing the chain.

4. The depth limiting mechanism of a net cage according to claim 3, characterized in that: At least two driving motors are provided. The output ends of the two driving motors are both connected with the disc.

5. The depth limit mechanism of a cage according to claim 1, characterized in that: The parts of the vertical plate, the first threaded rod and the second threaded rod located at the bottom of the floating frame are all coated with an anti-corrosion layer.

6. The depth limit mechanism of the net cage according to claim 1, characterized in that: The vertical plate is provided with an infrared sensor and a digital display screen. The infrared sensor is electrically connected to the digital display screen. The infrared sensor is used to measure the diving distance of the sliding blocks.

7. The depth limit mechanism of the net cage according to claim 1, characterized in that: A cable is connected to the bottom of the floating frame. A fixed anchor is provided at the bottom end of the cable.

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