The self-locking mechanism of the cage floating control device, the cage floating control device and the cage

Abstract

This invention discloses a self-locking mechanism, a net cage floating control device, and a net cage. The self-locking mechanism of the net cage floating control device includes a self-locking component, a floating component, a reset component, an anchor chain, and a winch. The self-locking component includes a locking disc and a locking hook. The locking disc is fitted onto and connected to the outer periphery of a drive shaft, and a locking hole is provided on the locking disc. The bottom of the locking hook is a hooking part. The floating component is connected to the top of the locking hook. The upper and lower ends of the reset component are respectively connected to the floating component and the net cage. When the floating component floats up and down, it correspondingly drives the hooking part of the locking hook to rise to a first position or fall to a second position. The self-locking mechanism of the net cage floating control device provided by this invention can lock and unlock the winch connected to the net cage floating control device according to changes in wind, wave, or water flow velocity, thereby locking and unlocking the anchor cable, and thus enabling adaptive and real-time adjustment of the net cage's attitude according to changes in wind, wave, or water flow velocity.

Description

Technical Field

[0001] This invention relates to the field of aquaculture cage technology, and in particular to a self-locking mechanism for a cage buoyancy control device, a cage buoyancy control device, and a cage. Background Technology

[0002] Fish cages float in water, such as at sea, and are easily affected by wind, waves, or changes in water current speed, causing them to tilt. Currently, to prevent this, floatation control devices are typically installed on the cages. These devices control the cage's attitude by tightening the anchor chains when waves are high or the current is fast, or loosening them when waves are low or the current is slow, thus keeping the cage stable. However, current floatation control devices require operators to manually tighten or loosen the anchor chains according to changes in wave or current speed, making it difficult to adjust the cage's attitude in a timely manner based on these changes. Summary of the Invention

[0003] The main objective of this invention is to propose a self-locking mechanism, a net cage floating control device, and a net cage, aiming to solve the technical problem that the net cage floating control device is difficult to adjust the attitude of the net cage in a timely manner according to changes in wind, waves, or water flow velocity.

[0004] To achieve the above objectives, the present invention proposes a self-locking mechanism for a net cage buoyancy control device. The net cage is used to float on water. The net cage buoyancy control device includes a winch and an anchor chain. The winch is installed in the net cage, one end of the anchor chain is connected to the winch, and the other end of the anchor chain is connected to the bottom of the water. The winch is used to tighten or loosen the anchor chain to adjust the draft of the net cage. The self-locking mechanism includes: The self-locking assembly includes a lock disc and a lock hook. The winch has a vertically extending drive shaft that can rotate about its own axis. The lock disc is sleeved and connected to the outer periphery of the drive shaft. The lock disc has a lock hole that extends vertically through the lock disc. The lock hook is vertically arranged and has a hook connection at its bottom. A floating assembly, located above the cage, is connected to the top of the locking hook; A reset component is provided, which is arranged vertically, and its upper and lower ends are connected to the floating component and the cage, respectively. The floating component is used to float on the water and float up and down relative to the net cage under the impact of water waves and the pull of the reset component; and when the floating component floats up and down, it drives the hook part of the locking hook to rise to a first position or fall to a second position. When the hook part rises to the first position, it is inserted into the lock hole to lock the lock plate and the drive shaft. When the hook part falls to the second position, it disengages from the lock hole to unlock the lock plate and the drive shaft.

[0005] In one embodiment, the floating assembly includes a float, a hinged rod, and a support base. The top of the locking hook is hinged to a hinged position of the hinged rod. The float is mounted on the hinged rod, and the hinged position and the float are spaced apart along the extension direction of the hinged rod. The support base is mounted on the net cage, and the support base is hinged to the hinged rod at a position between the hinged position and the float. The reset assembly includes a vertically arranged elastic telescopic member. The upper end of the elastic telescopic member is connected to the hinge rod and is located near the float. The lower end of the elastic telescopic member is connected to the net cage. When the float floats up and down, it can correspondingly drive the hinge rod to tilt downwards or upwards, so as to drive the hook connection part of the locking hook to rise to the first position or fall to the second position.

[0006] In one embodiment, the lock hook includes a rod portion and a hooking portion. The rod portion extends vertically, and the hooking portion includes a connecting section and a hooking section. The connecting section extends horizontally, and the hooking section extends vertically. The two ends of the connecting section are respectively connected to the bottom end of the rod portion and the bottom end of the hooking section. The top end of the rod portion is hinged to the hinge position. The hooking section is inserted into or disengaged from the lock hole when the hooking portion is in the first position or the second position.

[0007] In one embodiment, a mounting hole is provided at the center of the lock disc, the drive shaft passes through the mounting hole, the lock hole is an arc shape protruding away from the mounting hole, and two limiting walls are formed at the two ends of the lock hole along its extension direction. The two limiting walls are used to abut against the hook part inserted into the arc-shaped hole to limit the hook part to be located in the lock hole.

[0008] In one embodiment, the lock disc is provided with a plurality of lock holes, which are arranged at intervals around the mounting hole, and the distance between each lock hole and the mounting hole is the same.

[0009] The present invention also proposes a cage floating state control device, the cage floating state control device comprising: A winch and an anchor chain, wherein the winch is installed in the net cage, one end of the anchor chain is connected to the winch, and the other end of the anchor chain is connected to the bottom of the water. The winch is used to tighten or loosen the anchor chain to adjust the draft of the net cage. The winch has a vertically extending drive shaft that can rotate about its own axis. The self-locking mechanism is the same as the self-locking structure of the above-mentioned cage floating control device, wherein the locking disc of the self-locking mechanism is sleeved and connected to the outer periphery of the transmission shaft.

[0010] In one embodiment, the winch includes a drive unit, a transmission assembly, and a winch. Both the drive unit and the winch are installed in the cage. The other end of the anchor chain is connected to the bottom of the water. The transmission assembly is connected between the drive unit and the winch. The transmission assembly includes a drive shaft. The drive unit can drive the winch to tighten or loosen the anchor chain through the drive shaft.

[0011] In one embodiment, the driving component is a cross-flow water wheel disposed at the bottom of the net cage.

[0012] The present invention also proposes a net cage, the net cage including the above-mentioned net cage buoyancy control device.

[0013] The technical solution of this invention directly senses changes in wind and waves or water flow speed through a floating component of a self-locking mechanism. The up-and-down movement of the floating component drives the locking hook to engage with the locking disc, achieving instant locking or unlocking of the drive shaft. When the wind and waves increase or the water flow speed accelerates, the floating component tilts. The upward buoyancy of the tilted floating component cannot completely counteract the downward force from the reset component, causing it to be pulled downwards by the reset component. This pulls the hook part downwards to a second position and disengages from the locking hole, releasing the locking disc and drive shaft, thereby unlocking the winch. The unlocked winch structure can tighten the anchor chain to allow the gabion to have a deeper draft, enabling rapid attitude adjustment and thus greater stability. When the waves decrease or the water flow slows down, the stable floating component rises due to upward buoyancy, driving the hook to the first position to insert into the locking hole, locking the locking disc and drive shaft. After the floating component and the hook rise to the first position, the upward buoyancy of the floating component is relatively balanced by the downward force exerted on the floating component by the reset component, thus keeping the locking disc and drive shaft locked, and locking the winch. This prevents the winch structure from tightening the anchor cable when the waves decrease or the water flow slows down, thus preventing attitude adjustment of the gabion. Therefore, the self-locking mechanism of the floating control device for the cage provided by this invention can lock and unlock the winch in the floating control device for the cage according to the changes in wind, waves or water flow speed, thereby locking and unlocking the anchor cable, and thus enabling adaptive and real-time adjustment of the cage's attitude according to the changes in wind, waves or water flow speed, with a faster response speed. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 A partial structural diagram of the cage provided by the present invention; Figure 2 A cross-sectional schematic diagram of an embodiment of the self-locking mechanism of the cage floating state control device provided by the present invention; Figure 3 A schematic diagram of the force on the float when the hook is in the second position in one embodiment of the self-locking mechanism of the cage buoyancy control device provided by the present invention; Figure 4 A schematic diagram of the forces acting on the float when the hook is in the first position in one embodiment of the self-locking mechanism of the cage buoyancy control device provided by the present invention; Figure 5 A schematic diagram of the engagement between the lock hole and the hook section in one embodiment of the self-locking mechanism of the cage floating control device provided by the present invention.

[0016] Explanation of icon numbers: 100. Self-locking mechanism; 10. Self-locking component; 11. Locking disc; 111. Mounting hole; 112. Locking hole; 113. Limiting wall; 12. Locking hook; 121. Hooking part; 1211. Connecting section; 1212. Hooking section; 122. Rod part; 20. Floating component; 21. Float; 22. Hinge rod; 221. Floating end; 222. Hinge position; 23. Support base; 30. Reset component; 31. Elastic telescopic component; 200. Drive shaft; 300. Net cage; 301. Drive component; 302. Transmission component; 303. Winch; 304. Anchor chain.

[0017] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0021] This invention proposes a self-locking mechanism 100 for a floating control device for a net cage 300.

[0022] Please see Figures 1 to 3 In one embodiment of the present invention, the floating control device of the net cage 300 includes a winch 303 and an anchor chain 304. The winch 303 is installed on the net cage 300, one end of the anchor chain 304 is connected to the winch 303, and the other end of the anchor chain 304 is connected to the bottom of the water. The winch 303 is used to tighten or loosen the anchor chain 304 to adjust the draft of the net cage 300. The self-locking mechanism 100 includes a self-locking component 10, a floating component 20, and a reset component 30. The self-locking component 10 includes a locking disc 11 and a locking hook 12. The winch 303 has a vertically extending drive shaft 200, and the drive shaft 200 can rotate about its own axis. The locking disc 11 is sleeved and connected to the outer periphery of the drive shaft 200. The locking disc 11 has a locking hole 112 that penetrates the locking disc 11 vertically. The locking hook 12 is arranged vertically. The bottom of the hook 12 is a hook part 121; the floating component 20 is located above the net cage 300 and is connected to the top of the hook 12; the reset component 30 is arranged vertically, and the upper and lower ends of the reset component 30 are connected to the floating component 20 and the net cage 300 respectively; the floating component 20 is used to float on the water and float up and down relative to the net cage 300 under the impact of water waves and the pull of the reset component 30; when the floating component 20 floats up and down, it drives the hook part 121 of the hook 12 to rise to the first position or fall to the second position. When the hook part 121 rises to the first position, it inserts into the lock hole 112 to lock the lock disc 11 and the drive shaft 200. When the hook part 121 falls to the second position, it disengages from the lock hole 112 to unlock the lock disc 11 and the drive shaft 200.

[0023] The self-locking mechanism 100 of the floating control device for the net cage 300 provided by the technical solution of the present invention includes a self-locking component 10, a floating component 20, and a reset component 30. The self-locking component 10 consists of a locking disc 11 and a locking hook 12. The winch 303 has a vertically extending transmission shaft 200 that can rotate about its own axis. The locking disc 11 is sleeved and fixed to the outer periphery of the transmission shaft 200. The locking disc 11 has a vertically penetrating locking hole 112. The locking hook 12 is vertically arranged and has a hook connection part 121 at the bottom. The floating component 20 is located above the net cage 300 and is aligned with the top of the locking hook 12. The self-locking mechanism 100 is connected to the floating component 20 and the net cage 300 respectively. The floating component 20 floats on the water surface and moves up and down relative to the net cage 300 under the impact of the water flow and the pull of the reset component 30. This causes the hook part 121 of the locking hook 12 to rise to a first position or fall to a second position. When the hook part 121 rises to the first position, it inserts into the locking hole 112 to lock the locking disc 11 and the drive shaft 200. When the hook part 121 falls to the second position, it disengages from the locking hole 112 to unlock the locking disc 11 and the drive shaft 200. The self-locking mechanism 100 can directly sense changes in wind and waves or changes in water flow speed through the floating component 20. The up and down movement of the floating component 20 drives the locking hook 12 to cooperate with the locking disc 11, thereby realizing the instant locking or unlocking of the drive shaft 200. When the waves increase or the water flow speed increases, the floating component 20 will tilt. The upward buoyancy of the tilted floating component 20 cannot completely offset the downward force of the reset component 30. It will be pulled down by the reset component 30, and the hook part 121 will move down to the second position and disengage from the lock hole 112, thereby unlocking the lock disc 11 and the drive shaft 200, and thus releasing the lock of the winch 303. The unlocked winch structure can tighten the anchor chain 304 to allow the gabion 300 to have a deeper draft, thus enabling rapid attitude adjustment of the gabion 300 and making it more stable. When the waves decrease or the water flow slows down, the stable floating component 20 will rise due to the upward buoyancy, and drive the hook part 121 to rise to the first position to insert into the locking hole 112, thereby locking the locking disc 11 and the drive shaft 200. After the floating component 20 drives the hook part 121 to rise to the first position, the upward buoyancy of the floating component 20 is relatively balanced with the downward force exerted on the floating component 20 by the reset component 30, so that the locking disc 11 and the drive shaft 200 can be continuously locked, thereby locking the winch 303. This prevents the winch structure from tightening the anchor cable when the waves decrease or the water flow slows down, thus preventing attitude adjustment of the gabion 300. Therefore, the self-locking mechanism 100 of the floating control device of the cage 300 provided by the present invention can lock and unlock the winch 303 in the floating control device of the cage 300 according to the changes in wind, waves or water flow speed, thereby realizing the locking and unlocking of the anchor cable, and further realizing the adaptive and real-time adjustment of the attitude of the cage 300 according to the changes in wind, waves or water flow speed, with a faster response speed.

[0024] In one embodiment of the present invention, the floating component 20 includes a float 21, a hinge rod 22, and a support base 23. The top of the locking hook 12 is hinged to a hinge position 222 of the hinge rod 22. The float 21 is installed on the hinge rod 22, and the hinge position 222 and the float 21 are spaced apart along the extension direction of the hinge rod 22. The support base 23 is installed in the net cage 300 and is connected to the hinge rod 22 at the position between the hinge position 222 and the float 21. The reset component 30 includes an elastic telescopic member 31 arranged vertically. The upper end of the elastic telescopic member 31 is connected to the hinge rod 22 and is arranged close to the float 21. The lower end of the elastic telescopic member 31 is connected to the net cage 300. When the float 21 floats up and down, it can correspondingly drive the hinge rod 22 to tilt downwards or upwards, so as to drive the hook part 121 of the locking hook 12 to rise to a first position or fall to a second position.

[0025] Specifically, the floating component 20 includes a float 21 and a hinged rod 22, with an elastic telescopic member 31 connecting the float 21 to the net cage 300. When the waves increase or the water flow speed increases, the float 21 will tilt. The force diagram of the float 21 is shown below. Figure 4 As shown, the downward restoring force of the elastic telescopic member 31 cannot completely counteract the upward buoyancy of the tilted float 21, causing the float 21 to float upward, which in turn causes the hinge rod 22 to tilt upward, thereby causing the hinge position 222 to move downward, and further causing the locking hook 12 to move downward and disengage from the locking hole 112; when the wind and waves decrease or the water flow slows down, the force diagram of the float 21 is as follows. Figure 3 As shown, the stable float 21, due to the upward buoyancy, is counteracted by the downward restoring force of the elastic telescopic member 31, causing the hinge rod 22 to tilt downwards. This, in turn, causes the hinge position 222 to move upwards, thereby causing the locking hook 12 to move upwards and insert into the locking hole 112 to lock the locking disc 11. Through the action of the float 21 and the elastic telescopic member 31, the hook 121 can move between the first and second positions according to changes in wind and waves or water flow speed. This allows for adaptive and real-time adjustment of the net cage 300's attitude based on changes in wind, waves, or water flow speed, resulting in a simple structure. Furthermore, the top of the locking hook 12 is hinged to a hinge position 222 of the hinge rod 22. Because the locking hook 12 and the hinge position 222 of the hinge rod 22 are hinged, when the float 21 and the hinge rod 22 tilt, the locking hook 12 can still move vertically without being interfered with by the tilt of the hinge rod 22, resulting in a reasonable structure.

[0026] In one embodiment of the present invention, one end of the hinge rod 22 along its extension direction is a floating end 221, the top of the locking hook 12 is connected to the hinge rod 22 near the hinge end, the float 21 is installed on the floating end 221, the upper end of the elastic telescopic member 31 is connected to the hinge rod 22 at a position between the hinge position 222 and the float 21 and is set close to the float 21, and the lower end of the elastic telescopic member 31 is connected to the net cage 300.

[0027] Specifically, by connecting the upper end of the elastic telescopic member 31 to the hinge rod 22 near the float 21, the force exerted by the elastic telescopic member 31 on the hinge rod 22 can be transmitted to the float 21 more quickly and balance the force on the float 21, so as to complete the locking or unlocking of the lock disc 11 and the drive shaft 200, and the response speed is faster.

[0028] In one embodiment of the present invention, the lock hook 12 includes a rod portion 122 and a hook portion 121. The rod portion 122 extends vertically, and the hook portion 121 includes a connecting section 1211 and a hook section 1212. The connecting section 1211 extends horizontally, and the hook section 1212 extends vertically. The two ends of the connecting section 1211 are respectively connected to the bottom end of the rod portion 122 and the bottom end of the hook section 1212. The top end of the rod portion 122 is hinged to the hinge position 222. The hook section 1212 is inserted into or disengaged from the lock hole 112 when the hook portion 121 is in the first position or the second position.

[0029] Furthermore, the locking hook 12 includes a vertically extending rod 122, a horizontally extending connecting section 1211, and a vertically extending hook section 1212. The top end of the rod 122 is connected to the hinge position 222 of the hinge rod 22 via a hinge shaft, allowing it to rise and fall with the hinge rod 22. The bottom end of the rod 122 is fixedly connected to one end of the connecting section 1211, and the other end of the connecting section 1211 is connected to the bottom end of the hook section 1212, forming a stable inverted U-shaped hook structure. This structural design allows the hook section 1212 to accurately insert into or disengage from the lock hole 112 on the lock disc 11 in the vertical direction when the floating component 20 moves the hinge rod 22. The inverted U-shaped hook section 121 is designed to form a wrapping connection when inserted into the lock hole 112, increasing the contact area with the lock hole 112, making the locking force distribution more uniform and the locking more reliable.

[0030] In one embodiment of the present invention, a mounting hole 111 is provided at the center of the lock disc 11, the drive shaft 200 passes through the mounting hole 111, the lock hole 112 is an arc shape protruding away from the mounting hole 111, and two limiting walls 113 are formed at both ends of the lock hole 112 along its extension direction. The two limiting walls 113 are used to abut against the hook part 121 inserted into the arc-shaped hole, so as to limit the hook part 121 within the lock hole 112.

[0031] Specifically, a mounting hole 111 for engaging with a drive shaft 200 is provided at the center of the locking disc 11. The drive shaft 200 passes through the mounting hole 111 and is fixedly connected to the locking disc 11, allowing the locking disc 11 to rotate synchronously with the drive shaft 200. An arc-shaped locking hole 112 is provided on the disc body of the locking disc 11. The locking hole 112 has an arc-shaped structure protruding away from the mounting hole 111, and its curvature matches the circumferential arc centered on the mounting hole 111. The arc-shaped locking hole 112 greatly reduces the difficulty of inserting the hook part 121 into the locking hole 112, making it easier and simpler to insert the hook part 121 into the locking hole 112, requiring less precision and making insertion more convenient.

[0032] In one embodiment of the present invention, the lock disc 11 is provided with a plurality of lock holes 112, which are arranged at intervals around the mounting hole 111, and the distance between the lock holes 112 and the mounting hole 111 is the same.

[0033] Furthermore, the multiple locking holes 112 greatly increase the chances of locking, allowing the hook part 121 to find the corresponding locking hole 112 for insertion at any rotational position, which greatly improves the success rate and reliability of locking.

[0034] This invention also proposes a floating control device for a net cage 300. The floating control device includes a winch 303, an anchor chain 304, and a self-locking structure. The winch 303 is installed in the net cage 300. One end of the anchor chain 304 is connected to the winch 303, and the other end is connected to the bottom of the water. The winch 303 is used to tighten or loosen the anchor chain 304 to adjust the draft of the net cage 300. The winch 303 has a vertically extending drive shaft 200, which can rotate about its own axis. The locking disc 11 of the self-locking mechanism 100 is sleeved and connected to the outer periphery of the drive shaft 200. The specific structure of the self-locking structure of the floating control device is as described in the above embodiments. Since this floating control device for the net cage 300 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0035] In one embodiment of the present invention, the winch 303 includes a drive component 301, a transmission assembly 302, and the winch 303. Both the drive component 301 and the winch 303 are installed in the cage 300. One end of the anchor chain 304 is connected to the winch 303. The transmission assembly 302 is connected between the drive component 301 and the winch 303. The transmission assembly 302 includes a transmission shaft 200. The drive component 301 can drive the winch 303 to tighten or loosen the anchor chain 304 through the transmission shaft 200.

[0036] Specifically, the drive unit 301, transmission assembly 302, and winch 303 are all installed on the net cage 300. One end of the anchor chain 304 is connected to the winch 303, and the other end is connected to the seabed. The drive unit 301 drives the winch 303 to rotate forward and backward through the vertical transmission shaft 200 of the transmission assembly 302, thereby tightening or loosening the anchor chain 304 and adjusting the draft of the net cage 300. The locking disc 11 of the self-locking mechanism 100 is directly sleeved on the outer circumference of the transmission shaft 200. When the wind, waves, or water flow increase and the self-locking mechanism 100 is unlocked, the transmission shaft 200 can immediately rotate with the drive unit 301, and the winch 303 synchronously retracts the chain, deepening the draft of the net cage 300 and quickly stabilizing its posture. When the wind, waves, or water flow decrease and the self-locking mechanism 100 is locked, the transmission shaft 200 is immediately braked, the winch 303 stops rotating, the length of the anchor chain 304 is maintained, and the net cage 300 maintains a new stable draft. Since the drive shaft 200 simultaneously performs power transmission and locking functions, the locking directly acts on the power transmission path, eliminating the need for additional braking components, resulting in a compact structure and small footprint; the transmission assembly 302 also includes a gear set and...

[0037] In one embodiment of the present invention, the driving component 301 is a cross-flow water wheel disposed at the bottom of the net cage 300.

[0038] Specifically, the through-flow water turbine is installed at the bottom of the cage 300 and is driven directly by the flowing water. It does not require external power or fuel, achieving continuous operation with zero energy consumption and reducing operating costs. The greater the water flow speed, the greater the output torque of the water turbine. The chain winding speed of the winch 303 is automatically matched with the water flow intensity, which can quickly tighten the anchor chain 304 in rapid currents, enhancing the efficiency of attitude adjustment.

[0039] The present invention also proposes a net cage 300, which includes a net cage 300 floating state control device. The specific structure of the net cage 300 floating state control device is as described in the above embodiments. Since the net cage 300 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0040] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the protection scope of the present invention.

Claims

1. A self-locking mechanism for a net cage floating state control device, characterized in that, The net cage is used to float on the water. The net cage buoyancy control device includes a winch and an anchor chain. The winch is installed in the net cage, one end of the anchor chain is connected to the winch, and the other end of the anchor chain is connected to the bottom of the water. The winch is used to tighten or loosen the anchor chain to adjust the draft of the net cage. The self-locking mechanism includes: The self-locking assembly includes a lock disc and a lock hook. The winch has a vertically extending drive shaft that can rotate about its own axis. The lock disc is sleeved and connected to the outer periphery of the drive shaft. The lock disc has a lock hole that extends vertically through the lock disc. The lock hook is vertically arranged and has a hook connection at its bottom. A floating assembly, located above the cage, is connected to the top of the locking hook; A reset component is provided, which is arranged vertically, and its upper and lower ends are connected to the floating component and the cage, respectively. The floating component is used to float on the water and float up and down relative to the net cage under the impact of water waves and the pull of the reset component; and when the floating component floats up and down, it drives the hook part of the locking hook to rise to a first position or fall to a second position. When the hook part rises to the first position, it is inserted into the lock hole to lock the lock plate and the drive shaft. When the hook part falls to the second position, it disengages from the lock hole to unlock the lock plate and the drive shaft.

2. The self-locking mechanism of the cage floating control device as described in claim 1, characterized in that, The floating assembly includes a float, a hinged rod, and a support base. The top of the locking hook is hinged to a hinged position of the hinged rod. The float is installed on the hinged rod, and the hinged position and the float are spaced apart along the extension direction of the hinged rod. The support base is installed on the net cage, and the support base is hinged to the hinged rod at a position between the hinged position and the float. The reset assembly includes a vertically arranged elastic telescopic member. The upper end of the elastic telescopic member is connected to the hinge rod and is located near the float. The lower end of the elastic telescopic member is connected to the net cage. When the float floats up and down, it can correspondingly drive the hinge rod to tilt downwards or upwards, so as to drive the hook connection part of the locking hook to rise to the first position or fall to the second position.

3. The self-locking mechanism of the cage floating control device as described in claim 2, characterized in that, One end of the hinge rod along its extension direction is the floating end. The top of the locking hook is connected to the hinge rod near the hinge end. The float is installed on the floating end. The upper end of the elastic telescopic member is connected to the hinge rod at a position between the hinge and the float and is set close to the float. The lower end of the elastic telescopic member is connected to the net cage.

4. The self-locking mechanism of the cage floating control device as described in claim 3, characterized in that, The lock hook includes a rod and a hook-connecting part. The rod extends vertically, and the hook-connecting part includes a connecting section and a hook-connecting section. The connecting section extends horizontally, and the hook-connecting section extends vertically. The two ends of the connecting section are respectively connected to the bottom end of the rod and the bottom end of the hook-connecting section. The top end of the rod is hinged to the hinge position. The hook-connecting section is inserted into or disengaged from the lock hole when the hook-connecting part is in the first position or the second position.

5. The self-locking mechanism of the cage floating control device as described in any one of claims 1 to 4, characterized in that, The lock disc has a mounting hole at its center, and the drive shaft passes through the mounting hole. The lock hole is an arc shape that protrudes away from the mounting hole. Two limiting walls are formed at both ends of the lock hole along its extension direction. The two limiting walls are used to abut against the hook part inserted into the arc-shaped hole to limit the hook part to be located in the lock hole.

6. The self-locking mechanism of the cage floating control device as described in claim 5, characterized in that, The lock disc is provided with a plurality of lock holes, which are arranged at intervals around the mounting hole, and the distance between each lock hole and the mounting hole is the same.

7. A floating state control device for a net cage, characterized in that, The cage floating control device includes: A winch and an anchor chain, wherein the winch is installed in the net cage, one end of the anchor chain is connected to the winch, and the other end of the anchor chain is connected to the bottom of the water. The winch is used to tighten or loosen the anchor chain to adjust the draft of the net cage. The winch has a vertically extending drive shaft that can rotate about its own axis. The self-locking mechanism is the self-locking structure of the cage floating control device according to any one of claims 1 to 6, wherein the locking disc of the self-locking mechanism is sleeved and connected to the outer periphery of the transmission shaft.

8. The cage floating state control device as described in claim 7, characterized in that, The winch includes a drive unit, a transmission assembly, and a winch. The drive unit and the winch are both installed in the cage. One end of the anchor chain is connected to the winch. The transmission assembly is connected between the drive unit and the winch. The transmission assembly includes a drive shaft. The drive unit can drive the winch to tighten or loosen the anchor chain through the drive shaft.

9. The cage floating state control device as described in claim 8, characterized in that, The driving component is a cross-flow water wheel located at the bottom of the cage.

10. A wire mesh cage, characterized in that, The cage includes a cage buoyancy control device as described in any one of claims 7 to 9.

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