Sepiella maindroni seaborne hatching device
By using electric push rods and sealing discs to drive away schools of fish in the marine hatching device for the needleless squid of Manchuria, and by utilizing multi-stage telescopic pipes to expand the spraying range, the problem of easy damage to the net surface was solved, and efficient hatching protection was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-07
AI Technical Summary
The existing netting of the marine hatchery for the needleless squid is easily eaten by fish, causing blockages and damage. Fish can invade the hatchery, affecting the hatching effect of fertilized eggs.
A net cage incubator with an electric push rod and a sealing disc was designed. It uses liquid to drive fish schools and expands the driving range by spraying liquid with a multi-stage telescopic tube. Combined with a magnetic structure, the liquid can be automatically reused.
It effectively drives away fish, reduces the probability of fertilized eggs being eaten, improves hatching efficiency, and protects the normal hatching of fertilized eggs.
Smart Images

Figure CN224084441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of squid hatching devices, specifically a marine hatching device for the needleless squid. Background Technology
[0002] The Japanese spiny squid, typically about 15 cm in length, has a slender body and tentacles with suckers. It achieves color change using millions of pigment cells in its skin, earning it the nickname "chameleon of the sea." It is mainly distributed in the Yellow Sea and East China Sea of my country, and is a short-distance migratory species found in coastal waters. When incubating at sea, the fertilized eggs of the Japanese spiny squid are usually placed in a net-cage incubator and collected in a string. This method prevents the fertilized eggs from being eaten by fish, ensuring successful incubation at sea.
[0003] While placing fertilized eggs of the Japanese needleless squid in net cage incubators can reduce fish predation, existing technologies offer only simple protective structures. Furthermore, since net cage incubators are typically made of a frame and mesh material, the mesh is prone to clogging and damage after prolonged use and exposure to fish nibbling, allowing fish to invade and consume the fertilized eggs. Therefore, this paper proposes a marine incubation device for the Japanese needleless squid to address these issues. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background art, this utility model proposes a marine hatching device for the needleless squid.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The present utility model discloses a marine hatching device for the needleless squid, comprising a net cage incubator, which consists of a frame and a net bag. An inverted "L"-shaped connecting seat is fixedly installed on the top of the net cage incubator, and an electric push rod is fixedly installed on one side of the connecting seat. A hollow fixed cylinder is fixedly installed on one side of the net cage incubator, and the fixed cylinder stores liquid. The output end of the electric push rod is located inside the fixed cylinder, and a sealing disc is fixedly installed at the end of the output end of the electric push rod. The sealing disc is slidably and sealingly connected to the inside of the fixed cylinder. A hollow fixed frame is fixedly installed on the outer surface of the net cage incubator, and the side of the fixed frame near the net cage incubator has several through holes communicating with the interior. A connecting pipe with a one-way valve is fixedly installed between the fixed cylinder and the fixed frame.
[0006] Furthermore, a liquid storage tank is fixedly installed on the top of the connecting seat, and an inlet pipe for liquid inlet is fixedly installed on the top of the liquid storage tank. An outlet pipe with a one-way valve is fixedly installed on one side of the liquid storage tank and communicates with the interior. The end of the outlet pipe away from the liquid storage tank is connected to the interior of the fixed cylinder.
[0007] Furthermore, an end cap is rotatably connected to the end of the liquid outlet tube near the fixed cylinder via a torsion spring. A first magnetic block is fixedly installed on one side of the end cap, and a second magnetic block is fixedly installed on the bottom of the sealing disc.
[0008] Furthermore, an arc-shaped rubber rod is fixedly installed at one end of the end cap, and a slot adapted to the rod is provided inside the fixing cylinder.
[0009] Furthermore, a multi-stage telescopic tube is fixedly installed on the side of the electric push rod near the output end, and one end of the multi-stage telescopic tube is fixedly connected to the output end of the electric push rod.
[0010] Furthermore, the multi-stage telescopic tube is composed of several hollow pipes that are sealed and slidably connected, and the interior of each pipe is connected through holes. One end of the multi-stage telescopic tube is fixedly installed with an air inlet pipe that is connected to the interior and has a one-way valve, and the other end of the multi-stage telescopic tube is fixedly installed with an air outlet pipe that is connected to the interior and has a one-way valve. The end of the air outlet pipe away from the multi-stage telescopic tube is connected to the interior of the fixed frame.
[0011] The advantages of this utility model are:
[0012] 1. When the net cage incubator is placed in the sea to cultivate fertilized eggs of the Japanese squid, and a school of fish approaches the net cage incubator, the electric push rod on the connecting seat is activated. This causes the electric push rod to slide the sealing plate towards the connecting pipe, thereby using the sealing plate to squeeze the liquid pre-stored in the fixed cylinder. The liquid is then squeezed and quickly enters the fixed frame through the connecting pipe, and is rapidly sprayed towards the net cage incubator through several through holes in the fixed frame. This effectively drives away the school of fish, reducing the probability of the Japanese squid fertilized eggs being eaten by the fish, thus ensuring the normal hatching of the Japanese squid fertilized eggs and improving hatching efficiency. When the sealing disc, carrying the second magnetic block, moves to the bottom of the fixed cylinder, the second magnetic block and the first magnetic block on the end cap attract each other due to their opposite polarities. As the electric push rod slides upward and resets via its output end, the end cap, under the influence of the first magnetic block, also rotates upward, causing the insertion rod to be temporarily inserted into the slot and fixed, thus opening the outlet pipe. At this time, the liquid stored in the storage tank will flow into the fixed cylinder through the outlet pipe for future use. Because the force of the end cap torsion spring is greater than the force of the slot fixing the insertion rod, after the second magnetic block at the bottom of the sealing disc separates from the first magnetic block for a period of time, the end cap will rotate and reset under the action of the torsion spring, thus re-closing the outlet pipe.
[0013] 2. This utility model, by installing a multi-stage telescopic tube on the output end of the electric actuator, protects the output end from seawater corrosion while also allowing it to move up and down. Simultaneously, the hollow multi-stage telescopic tube, when moving downwards with the output end, draws in external air through the air inlet pipe. When the output end moves upwards, the drawn-in air is compressed, causing it to enter the through-hole of the fixed frame through the air outlet pipe. This helps to blow the sprayed liquid from the through-hole to a farther location, thereby expanding the spraying area and effectively repelling fish. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a three-dimensional structural diagram of the wire mesh incubator of this utility model;
[0016] Figure 2 This is a structural schematic diagram of the fixed cylinder in this utility model;
[0017] Figure 3 This is a cross-sectional view of the fixed cylinder in this utility model;
[0018] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A;
[0019] Figure 5 This is a partial cross-sectional view of the multi-stage telescopic tube in this utility model.
[0020] In the diagram: 1. Wire cage incubator; 2. Connecting seat; 3. Electric push rod; 4. Fixing cylinder; 5. Sealing plate; 6. Connecting pipe; 7. Fixing frame; 8. Through hole; 9. Liquid storage tank; 10. Liquid inlet pipe; 11. Liquid outlet pipe; 12. End cap; 13. First magnetic block; 14. Second magnetic block; 15. Insert rod; 16. Slot; 17. Multi-stage telescopic tube; 18. Air inlet pipe; 19. Air outlet pipe. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0022] Please see Figure 1-5 As shown, a marine hatching device for the needleless squid includes a net cage incubator 1, which consists of a frame and a net. An inverted "L"-shaped connecting seat 2 is fixedly installed on the top of the net cage incubator 1, and an electric push rod 3 is fixedly installed on one side of the connecting seat 2. A hollow fixed cylinder 4 is fixedly installed on one side of the net cage incubator 1, and liquid is stored inside the fixed cylinder 4. The output end of the electric push rod 3 is located inside the fixed cylinder 4, and a sealing plate 5 is fixedly installed at the end of the output end of the electric push rod 3. The sealing plate 5 is slidably and sealingly connected to the inside of the fixed cylinder 4. A hollow fixed frame 7 is fixedly installed on the outer surface of the net cage incubator 1. Several through holes 8 communicating with the inside are opened on the side of the fixed frame 7 near the net cage incubator 1. A connecting pipe 6 with a one-way valve is fixedly installed between the fixed cylinder 4 and the fixed frame 7.
[0023] Specifically, a liquid storage tank 9 is fixedly installed on the top of the connecting seat 2. An inlet pipe 10 for liquid inlet is fixedly installed on the top of the liquid storage tank 9. An outlet pipe 11, connected to the interior and equipped with a one-way valve, is fixedly installed on one side of the liquid storage tank 9. The end of the outlet pipe 11 away from the liquid storage tank 9 is connected to the interior of the fixed cylinder 4. An end cap 12 is rotatably connected to the end of the outlet pipe 11 near the fixed cylinder 4 via a torsion spring. A first magnet 13 is fixedly installed on one side of the end cap 12, and a second magnet 14 is fixedly installed on the bottom of the sealing disc 5. An arc-shaped rubber insert 15 is fixedly installed on one end of the end cap 12, and a slot 16 adapted to the insert 15 is provided inside the fixed cylinder 4.
[0024] During operation, when the net cage incubator 1 is placed in the sea to cultivate fertilized eggs of the squid, and a school of fish approaches the net cage incubator 1, the electric push rod 3 on the connecting seat 2 is activated, causing the electric push rod 3 to slide along the sealing plate 5 towards the connecting tube 6. Figure 3 The sealing disc 5 is in the state after being squeezed (when the sealing disc 5 is not squeezing the liquid in the fixed cylinder 4, it is at the top of the fixed cylinder 4). The sealing disc 5 squeezes the liquid pre-stored in the fixed cylinder 4 (the liquid can be a biological solution of gorgonian coral, which can disperse the fish while not affecting the fertilized eggs of the Chinese needleless squid; a suitable liquid can also be selected according to the actual situation). After being squeezed, the liquid quickly enters the fixed frame 7 through the connecting pipe 6 and is quickly sprayed onto the net cage incubator 1 through several through holes 8 in the fixed frame 7. This drives away the fish, reduces the probability of the Chinese needleless squid fertilized eggs being eaten by the fish, and thus ensures the normal hatching of the Chinese needleless squid fertilized eggs and improves the hatching efficiency.
[0025] When the sealing disc 5, carrying the second magnetic block 14, moves to the bottom of the fixed cylinder 4, the second magnetic block 14 and the first magnetic block 13 on the end cap 12 attract each other due to their opposite polarities. As the electric push rod 3 slides upward and resets the sealing disc 5 and the second magnetic block 14 through its output end, the end cap 12, under the influence of the first magnetic block 13, also rotates upward with the insertion rod 15, causing the insertion rod 15 to be temporarily fixed in the slot 16, thereby opening the liquid outlet pipe 11. At this time, the liquid stored in the storage tank 9 will flow into the fixed cylinder 4 through the liquid outlet pipe 11, thus facilitating the next use. Since the force of the torsion spring of the end cap 12 is greater than the force of the slot 16 fixing the insertion rod 15, after the second magnetic block 14 at the bottom of the sealing disc 5 separates from the first magnetic block 13 for a period of time, the end cap 12 will rotate and reset under the action of the torsion spring, thereby re-closing the liquid outlet pipe 11.
[0026] A multi-stage telescopic tube 17 is fixedly installed on the side of the electric push rod 3 near the output end. One end of the multi-stage telescopic tube 17 is fixedly connected to the output end of the electric push rod 3. The multi-stage telescopic tube 17 is composed of several hollow pipes that are sealed and slidably connected, and the interior of each pipe is connected through holes. An air inlet pipe 18 with a one-way valve and connected to the interior is fixedly installed on one end of the multi-stage telescopic tube 17, and an air outlet pipe 19 with a one-way valve and connected to the interior is fixedly installed on the other end of the multi-stage telescopic tube 17. The end of the air outlet pipe 19 away from the multi-stage telescopic tube 17 is connected to the interior of the fixed frame 7.
[0027] During operation, a multi-stage telescopic tube 17 is installed on the output end of the electric push rod 3. This protects the output end from seawater corrosion while also allowing it to move up and down. Simultaneously, the hollow multi-stage telescopic tube 17, when moving downwards with the output end, draws in external air through the air inlet pipe 18. When the output end moves upwards, the drawn-in air is compressed, causing it to pass through the air outlet pipe 19 into the through-hole 8 of the fixed frame 7. This helps to blow the liquid sprayed within the through-hole 8 further away, thereby expanding the spraying area and effectively driving away fish.
[0028] Working principle: When the net cage incubator 1 is placed in the sea to cultivate fertilized eggs of the Japanese squid, and a school of fish approaches the net cage incubator 1, the electric push rod 3 on the connecting seat 2 is activated. The electric push rod 3 moves the sealing plate 5 towards the connecting pipe 6, thereby using the sealing plate 5 to squeeze the liquid pre-stored in the fixed cylinder 4. After being squeezed, the liquid quickly enters the fixed frame 7 through the connecting pipe 6, and is quickly sprayed towards the net cage incubator 1 through several through holes 8 in the fixed frame 7. This drives away the school of fish, reduces the probability of the Japanese squid fertilized eggs being eaten by the fish, and thus ensures the normal hatching of the Japanese squid fertilized eggs and improves the hatching efficiency. When the sealing disc 5, carrying the second magnetic block 14, moves to the bottom of the fixed cylinder 4, the second magnetic block 14 and the first magnetic block 13 on the end cap 12 attract each other due to their opposite polarities. As the electric push rod 3 slides upward and resets the sealing disc 5 and the second magnetic block 14 through its output end, the end cap 12, under the influence of the first magnetic block 13, also rotates upward with the insertion rod 15, causing the insertion rod 15 to be temporarily fixed in the slot 16, thereby opening the liquid outlet pipe 11. At this time, the liquid stored in the storage tank 9 will flow into the fixed cylinder 4 through the liquid outlet pipe 11, thus facilitating the next use. Since the force of the torsion spring of the end cap 12 is greater than the force of the slot 16 fixing the insertion rod 15, after the second magnetic block 14 at the bottom of the sealing disc 5 separates from the first magnetic block 13 for a period of time, the end cap 12 will rotate and reset under the action of the torsion spring, thereby re-closing the liquid outlet pipe 11.
[0029] By installing a multi-stage telescopic tube 17 on the output end of the electric push rod 3, the output end is protected from seawater corrosion while also being able to move up and down in conjunction with the output end. Simultaneously, the hollow multi-stage telescopic tube 17, when moving downwards in conjunction with the output end, draws in external air through the air inlet pipe 18. When the output end moves upwards, the drawn-in air is compressed, causing it to enter the through-hole 8 of the fixed frame 7 through the air outlet pipe 19. This helps to blow the liquid sprayed within the through-hole 8 to a farther location, thereby expanding the spraying area and effectively driving away fish.
[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A marine hatching device for the needleless squid, comprising a net cage incubator (1), said net cage incubator (1) consisting of a frame and a net bag, characterized in that: The top of the net cage incubator (1) is fixedly installed with an inverted "L"-shaped connecting seat (2), and one side of the connecting seat (2) is fixedly installed with an electric push rod (3); A hollow fixed cylinder (4) is fixedly installed on one side of the net cage incubator (1). Liquid is stored inside the fixed cylinder (4). The output end of the electric push rod (3) is located inside the fixed cylinder (4). A sealing plate (5) is fixedly installed at the end of the output end of the electric push rod (3). The sealing plate (5) is in a sealed sliding connection with the inside of the fixed cylinder (4). A hollow fixed frame (7) is fixedly installed on the outer surface of the net cage incubator (1). The fixed frame (7) has several through holes (8) connected to the inside on the side close to the net cage incubator (1). A connecting pipe (6) with a one-way valve is fixedly installed between the fixed cylinder (4) and the fixed frame (7).
2. The marine hatching device for the needleless squid of Mansonia as described in claim 1, characterized in that: A liquid storage tank (9) is fixedly installed on the top of the connecting seat (2). An inlet pipe (10) for liquid inlet is fixedly installed on the top of the liquid storage tank (9). An outlet pipe (11) with a one-way valve is fixedly installed on one side of the liquid storage tank (9) and communicates with the interior. The end of the outlet pipe (11) away from the liquid storage tank (9) is connected to the interior of the fixed cylinder (4).
3. The marine hatching device for the needleless squid of Mansonia as described in claim 2, characterized in that: The end of the liquid outlet pipe (11) near the fixed cylinder (4) is rotatably connected to the end cap (12) by a torsion spring. A first magnetic block (13) is fixedly installed on one side of the end cap (12), and a second magnetic block (14) is fixedly installed on the bottom of the sealing disc (5).
4. The marine hatching device for the needleless squid of Mansonia as described in claim 3, characterized in that: One end of the end cap (12) is fixedly installed with an arc-shaped rubber rod (15), and the inside of the fixing cylinder (4) is provided with a slot (16) that matches the rod (15).
5. The marine hatching device for the needleless squid of Mansonia as described in claim 1, characterized in that: The electric push rod (3) has a multi-stage telescopic tube (17) fixedly installed on the side near the output end, and one end of the multi-stage telescopic tube (17) is fixedly connected to the output end of the electric push rod (3).
6. The marine hatching device for the needleless squid of Mansonia as described in claim 5, characterized in that: The multi-stage telescopic tube (17) is composed of several hollow pipes that are sealed and slidably connected, and each pipe is connected internally through holes. One end of the multi-stage telescopic tube (17) is fixedly installed with an air inlet pipe (18) that is connected to the interior and has a one-way valve. One end of the multi-stage telescopic tube (17) is fixedly installed with an air outlet pipe (19) that is connected to the interior and has a one-way valve. The end of the air outlet pipe (19) away from the multi-stage telescopic tube (17) is connected to the interior of the fixed frame (7).