Center drainage pipe of marine fish fry rearing pond

Abstract

The utility model discloses a central drain pipe of a marine fish fry rearing pond, which relates to the technical field of aquaculture and comprises an outer pipe, a pond and a quick-mounting mechanism. The top end of the outer pipe is fixedly provided with a connecting support, the center of the connecting support is provided with a quick-mounting mechanism which can be conveniently and quickly mounted on the inner pipe, and the outer pipe is fixedly arranged at the bottom of the pool. The inner pipe is sleeved with the outer pipe, so that the drainage area of the central pipe is effectively enlarged, the water flow speed and the risk that larvae are adsorbed are reduced, and the survival rate of fry cultivation is increased. In the installation process, through the interaction of the extrusion slope, the wedge-shaped block, the sliding rod and the reset spring, stable locking of the installation base is achieved, the installation process is simplified, and stable use of the center drainage pipe is ensured.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically a central drainage pipe for a marine fish fry rearing pond. Background Technology

[0002] Marine fish fry rearing is a core link in the aquaculture industry chain. Through artificial intervention, it involves the entire process of egg hatching, larval rearing, and juvenile fish cultivation, providing high-quality breeding stock for adult fish farming. This process demands extremely high standards for water quality control, water flow management, and facility design. Larvae and juveniles, in particular, are highly susceptible to environmental factors due to their small size, weak strength, and poor swimming ability. Traditional rearing ponds often use a single central drainage pipe structure, where the high flow velocity and concentrated pressure at the drainage outlet cause larvae and juveniles to be adsorbed onto the pipe wall during water changes, resulting in mechanical damage or death and severely reducing the survival rate of fry.

[0003] Based on this, a central drainage pipe for a marine fish fry rearing pond is provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a central drainage pipe for a marine fish fry rearing pond to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A central drainage pipe for a marine fish fry rearing pond includes: an outer pipe;

[0007] The water tank has an outer pipe fixed at the bottom and a connecting bracket fixed at the top. The connecting bracket has a quick-installation mechanism at the center to facilitate the rapid installation of the inner pipe.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the quick-installation mechanism includes a fixed inner cylinder that is fixedly connected to the connecting bracket by a support rod. A limiting plate is fixedly provided on the inner wall of the fixed inner cylinder. An inner tube is provided inside the outer tube. A mounting seat is provided at the top of the inner tube. A positioning post that matches the limiting plate is provided at the top of the mounting seat. A sealing ring is provided between the limiting plate and the mounting seat. A locking unit is provided inside the fixed inner cylinder to facilitate locking the inner tube.

[0010] In one alternative embodiment: the locking unit includes a wedge block disposed inside the fixed inner cylinder, the end of the wedge block having an installation groove, the installation groove having a sliding rod slidably connected to the fixed inner cylinder, a return spring being fixedly disposed between the inner wall of the fixed inner cylinder and the installation groove, and a pull ring being fixedly disposed at the end of the sliding rod.

[0011] In one alternative: a water inlet pipe is connected to the left side of the pool, a drain pipe is connected to the bottom of the pool, the end of the drain pipe can be inserted and fixedly connected by the bottom end of the inner pipe, and an observation window is provided at the front end of the pool.

[0012] In one alternative: the inner tube is detachable and inserted into the central drain outlet at the bottom of the pool; the lower end of the outer tube is sealed and fixed with sealing rubber; a screen is fitted over the outer tube and secured with rubber bands at the top and bottom.

[0013] In one alternative: the inner tube has a diameter of 2cm, the outer tube has a diameter of 3mm, and the inner tube is 3-5cm longer than the outer tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model effectively expands the drainage area of ​​the central pipe by connecting the outer pipe to the inner pipe, reduces the water flow speed and the risk of juvenile fish being sucked in, and improves the survival rate of seedling cultivation.

[0016] 2. During the installation process of the inner and outer pipes of this utility model, the interaction of the squeezing ramp, wedge block, sliding rod and return spring achieves a stable locking of the mounting base, simplifies the installation process and ensures the stable use of the central drainage pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the inner tube in this utility model.

[0019] Figure 3 This is a schematic diagram of the connecting bracket in this utility model.

[0020] Figure 4 This is a schematic diagram of the wedge block in this utility model.

[0021] Attached Figure Labels: 1. Outer pipe; 2. Water tank; 3. Connecting bracket; 4. Support rod; 5. Fixed inner cylinder; 6. Limiting plate; 7. Inner pipe; 8. Mounting seat; 9. Positioning post; 10. Sealing ring; 11. Wedge block; 12. Mounting groove; 13. Sliding rod; 14. Return spring; 15. Pull ring; 16. Water inlet pipe; 17. Drain pipe; 18. Observation window. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In one embodiment, such as Figures 1-4As shown, a central drainage pipe for a marine fish fry rearing pond includes: an outer pipe 1, a water tank 2, and a quick-installation mechanism; a connecting bracket 3 is fixedly provided at the top of the outer pipe 1, and a quick-installation mechanism is provided at the center of the connecting bracket 3 for easy and quick installation onto the inner pipe 7; an inlet pipe 16 is connected to the left side of the water tank 2, and a drain pipe 17 is connected to the bottom of the water tank 2; the end of the drain pipe 17 can be inserted and fixed by the bottom end of the inner pipe 7; an observation window 18 is provided at the front end of the water tank 2; the inner pipe 7 is detachably connected and inserted into the central drain outlet located at the bottom of the pond; the lower end of the outer pipe 1 is sealed and fixed by sealing soft glue; a screen is fitted on the outside of the outer pipe 1 and fixed at the top and bottom with rubber bands.

[0024] The device uses an outer pipe 1 connected to an inner pipe 7 to expand the drainage area of ​​the central pipe. The two-layer pipe design, with a smaller diameter in the outer pipe 1, reduces water flow velocity and the probability of fry being sucked in, thus improving the survival rate of the fry. The water flow in the pool 2 is controlled by an inlet pipe 16 and an outlet pipe 17. Operators can observe the fry in the pool 2 through an observation window 18. A soft rubber seal between the outer pipe 1 and the pool 2 prevents the fry from escaping.

[0025] In one embodiment, such as Figure 2 and Figure 3 As shown, the quick-installation mechanism includes a fixed inner cylinder 5 fixedly connected to a connecting bracket 3 via a support rod 4. A limiting plate 6 is fixedly provided on the inner wall of the fixed inner cylinder 5. An inner tube 7 is provided inside the outer tube 1. A mounting seat 8 is provided at the top of the inner tube 7. A positioning post 9 that matches the limiting plate 6 is provided at the top of the mounting seat 8. A sealing ring 10 is provided between the limiting plate 6 and the mounting seat 8. A locking unit is provided inside the fixed inner cylinder 5 to facilitate locking the inner tube 7. The diameter of the inner tube 7 is 2cm, the diameter of the outer tube 1 is 3mm, and the inner tube 7 is 3-5cm longer than the outer tube 1.

[0026] The bottom of the limiting plate 6 is provided with a positioning hole that matches the positioning post 9. When the outer tube 1 is installed on the inner tube 7, the positioning post 9 on the top mounting seat 9 of the inner tube 7 is aligned with the positioning hole for positioning. Then, the inner tube 7 is locked by the locking unit. By setting the sealing ring 10, the tightness and durability between the connecting bracket 3 and the inner tube 7 can be improved. The inner tube 7 is 3-5cm longer than the outer tube 1, so the inner tube 7 can be quickly inserted into the center drain hole at the bottom of the pool for installation.

[0027] In one embodiment, such as Figure 3 and Figure 4 As shown, the locking unit includes a wedge block 11 disposed inside the fixed inner cylinder 5. The end of the wedge block 11 is provided with an installation groove 12. The inside of the installation groove 12 is provided with a sliding rod 13 that is slidably connected to the fixed inner cylinder 5. A return spring 14 is fixedly disposed between the inner wall of the fixed inner cylinder 5 and the installation groove 12. A pull ring 15 is fixedly disposed at the end of the sliding rod 13.

[0028] The top of the mounting base 8 is provided with a pressing ramp that matches the wedge block 11. When the outer tube 1 is installed on the inner tube 7, the mounting base 8 presses the wedge block 11, causing the wedge block 11 to slide horizontally along the sliding rod 13. At the same time, the return spring 14 is pressed, and finally the return spring 14 drives the wedge block 11 to return to its original position, thereby locking the mounting base 8 between the wedge block 11 and the limiting plate 6. By manually pulling the pull rings 15 on both sides, the pull rings 15 slide along the sliding rod 13, thereby unlocking and removing the outer tube 1 from the inner tube 7.

[0029] The above embodiment discloses a central drainage pipe for a marine fish fry rearing pond. By using an outer pipe 1 connected to an inner pipe 7, the drainage area of ​​the central pipe is expanded, the water flow velocity is reduced, and the probability of fry being attracted is reduced, thereby improving the survival rate of fry rearing. When installing the central drainage pipe, the positioning post 9 on the mounting base 8 of the inner pipe 7 is aligned with the positioning hole at the bottom of the limiting plate 6 and moved upward. At the same time, the extrusion ramp on the mounting base 8 extrudes the wedge block 11, causing the wedge block 11 to drive the sliding rod 13 to slide laterally. Simultaneously, the return spring 14 is extruded, and finally the return spring 14 drives the wedge block 11 to return to its original position, thereby locking the mounting base 8 between the wedge block 11 and the limiting plate 6. The operator can unlock the inner pipe 7 by pulling the pull ring 15.

[0030] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A central drainage pipe for a marine fish fry rearing pond, comprising: Outer tube (1); Water tank (2), the outer pipe (1) is fixedly installed at the bottom of the water tank (2), the top end of the outer pipe (1) is fixedly provided with a connecting bracket (3), and the center of the connecting bracket (3) is provided with a quick-installation mechanism that facilitates quick installation on the inner pipe (7).

2. The central drainage pipe of a marine fish fry rearing pond according to claim 1, characterized in that, The quick-assembly mechanism includes a fixed inner cylinder (5) fixedly connected to the connecting bracket (3) by a support rod (4). A limiting plate (6) is fixedly provided on the inner wall of the fixed inner cylinder (5). An inner tube (7) is provided inside the outer tube (1). An mounting seat (8) is provided at the top of the inner tube (7). A positioning post (9) adapted to the limiting plate (6) is provided at the top of the mounting seat (8). A sealing ring (10) is provided between the limiting plate (6) and the mounting seat (8). A locking unit is provided inside the fixed inner cylinder (5) to facilitate locking the inner tube (7).

3. The central drainage pipe of a marine fish fry rearing pond according to claim 2, characterized in that, The locking unit includes a wedge block (11) disposed inside the fixed inner cylinder (5). The end of the wedge block (11) is provided with an installation groove (12). The inside of the installation groove (12) is provided with a sliding rod (13) that is slidably connected to the fixed inner cylinder (5). A return spring (14) is fixed between the inner wall of the fixed inner cylinder (5) and the installation groove (12). A pull ring (15) is fixed at the end of the sliding rod (13).

4. The central drainage pipe of a marine fish fry rearing pond according to claim 1, characterized in that, The water tank (2) is connected to an inlet pipe (16) on the left side and a drain pipe (17) at the bottom. The end of the drain pipe (17) can be inserted and fixedly connected by the bottom end of the inner pipe (7). The water tank (2) is provided with an observation window (18) at the front end.

5. The central drainage pipe of a marine fish fry rearing pond according to claim 2, characterized in that, The inner tube (7) is detachable and is inserted into the central drain outlet at the bottom of the pool. The lower end of the outer tube (1) is sealed and fixed with sealing soft glue. The outer tube (1) is covered with a screen and fixed with rubber bands at the top and bottom.

6. The central drainage pipe of a marine fish fry rearing pond according to claim 2, characterized in that, The inner tube (7) has a diameter of 2 cm, the outer tube (1) has a diameter of 3 mm, and the inner tube (7) is 3-5 cm longer than the outer tube (1).

Images