Juvenile fish fry separating device for septentrionus septentrionalis

Abstract

The utility model provides a juvenile fish fry separating device for modestus septentrionalis, and relates to the technical field of juvenile fish fry separating equipment. The juvenile fish separating device for the septumnus septentrionalis comprises a connecting cylinder and a bottom cylinder connected to the bottom of the connecting cylinder in a threaded mode, a through groove is formed in the outer surface of the connecting cylinder, a shielding plate for shielding the through groove is slidably connected to the inner wall of the connecting cylinder, a plurality of through holes are formed in the shielding plate, and the sizes of the through holes are sequentially reduced from bottom to top; the number of the shielding plates is multiple. According to the device, a juvenile fish cluster is attracted through bait arranged in a bait net bag, small-size juvenile fishes enter a connecting cylinder through a through hole, when the juvenile fishes reach a certain number, the connecting cylinder is taken out from water, the juvenile fish separation operation is completed, a connecting frame is controlled to ascend and descend under the action of an adjusting mechanism, and the juvenile fish separation efficiency is improved. The through holes with different sizes are selected to directly face the through grooves according to the sizes of the juvenile fishes, and the adaptability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of seedling separating devices, specifically a kind of green fin pufferfish fry seedling separating device belongs to fry seedling separating equipment technical field. BACKGROUND

[0002] Green fin pufferfish is single pufferfish, pufferfish genus fish. Body is relatively flat, and it is long oval, and it is similar to pufferfish, and generally body length is 12-29 centimeters. Body length is 2.7-3.4 times of body height, and it is 2.9-3.8 times of the distance between the starting point of second dorsal fin and the starting point of anal fin, and body weight is about 400 grams. Head is short, mouth is small, and tooth door is dentiform. Eye is small, and it is high, and it is close to dorsal margin. Gill slit is small, and most or almost all are below the horizontal line of mouth slit. Scale is small, and it is fluffy. Body is blue-gray, and there is no lateral line, and irregular dark patch is on body side. In the process of green fin pufferfish fry breeding, to reduce mutual cannibalism between individuals, prevent that larger individual attacks small individual, seedling separating needs to be carried out regularly, i. e. the individuals of large size and small size are screened and then cultured in different pools.

[0003] Chinese patent publication No. CN219981868U discloses a green fin pufferfish fry seedling separating device, which belongs to the technical field of aquaculture and comprises a floating buoy, a seedling separating screen, a bait net bag and a collecting net bag. The floating buoy is connected above the seedling separating screen, the seedling separating screen is in the shape of an inverted hollow hemispherical body, the bait net bag is connected inside the seedling separating screen through a rope-like object, the seedling separating screen is connected below the collecting net bag, and the collecting net bag is in the shape of an inverted circular truncated cone. The large opening of the collecting net bag is connected to the opening of the seedling separating screen.

[0004] However, the inventor of the above device believes that there are certain defects. The above device uses a screen to separate fry, and the size of seedling separating is single, which is not convenient to adjust according to the size of fry seedling separating, and the adaptability is poor. Therefore, the utility model provides a green fin pufferfish fry seedling separating device. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] The purpose of the utility model is to solve the above problems and provide a green fin pufferfish fry seedling separating device to solve the problem that the size of seedling separating is single in the prior art, which is not convenient to adjust according to the size of fry seedling separating.

[0007] (II) Technical scheme

[0008] The utility model discloses a green fin mace puffer juvenile fish divides seedling device, including the connecting tube and the bottom cylinder of screw connection in the bottom of connecting tube, the outer surface of connecting tube is seted up with the through slot, the inner wall sliding connection of connecting tube has the baffle of the through slot and is shielded, a plurality of through -holes are seted up on the baffle, and the size of a plurality of through -holes decreases gradually from below to above, the quantity of baffle is a plurality, and a plurality of baffles are connected through the connecting frame, and the adjusting mechanism that the connecting frame is equipped with adjusting the connecting frame and is lifted, the bottom of connecting frame is installed with the pull rope, and the other end fixed connection of pull rope has the bait net bag.

[0009] Preferably, the adjusting mechanism is fixed to the connecting slide rod at the top of the connecting frame, the top of the connecting tube is fixedly connected with a sleeve ring, one end of the connecting slide rod extends to the top of the connecting tube through the sleeve ring, and the connecting frame is controlled to be lifted by controlling the connecting slide rod in the sleeve ring.

[0010] Preferably, a plug hole is formed in the connecting slide rod, a fixed seat is fixedly connected to the sleeve ring, a movable plug rod is slidably connected in the fixed seat, one end of the movable plug rod is inserted into the plug hole, a baffle is fixedly connected to the movable plug rod, a spring is sleeved to the movable plug rod, and the sliding of the connecting slide rod in the sleeve ring is limited by inserting one end of the movable plug rod into the plug hole.

[0011] Preferably, the top of the connecting slide rod is fixedly connected with a connecting plate, and the connecting plate and the connecting tube are connected through a tension spring. Under the action of the tension spring, the connecting slide rod is quickly reset without force.

[0012] Preferably, a plurality of fixed strips are fixedly connected to the inner wall of the connecting tube, and a plurality of baffles are slidably connected between the plurality of fixed strips. The baffles are stably lifted and slid on the inner wall of the connecting tube under the action of the fixed strips.

[0013] Preferably, the top of the pull rope is fixedly connected with a bolt, and the bolt is threadedly connected to the bottom of the connecting frame. By unscrewing the bolt at the top of the pull rope, the pull rope can be easily removed from the bottom of the connecting frame.

[0014] Preferably, the top of the connecting tube is fixedly connected with a connecting rope, the other end of the connecting rope is fixedly connected with a floating plate, and the bottom of the bottom cylinder is fixedly connected with a counterweight. Under the action of the counterweight and the floating plate, the connecting tube and the bottom cylinder float in the water.

[0015] The utility model provides a green fin mace puffer juvenile fish divides seedling device, and it has the beneficial effect as follows:

[0016] 1. The device attracts the juvenile fish cluster by the bait arranged in the bait net bag, the juvenile fish with small volume enters the inside of the connecting cylinder through the through hole, the juvenile fish is taken out from the water by the connecting cylinder when the number of the juvenile fish reaches a certain number, the separating operation is completed, and the connecting frame is controlled to ascend and descend under the action of the adjusting mechanism, the shielding plate is driven to ascend and descend on the inner wall of the connecting cylinder, the through hole with different sizes is selected to face the through groove according to the volume of the juvenile fish, and the adaptability is good.

[0017] 2. The device adjusts the connecting frame by pulling the movable insertion rod out of the inside of the insertion hole, so that the connecting slide rod can freely slide and ascend and descend, the connecting slide rod is quickly lowered and slides under the action of the tension spring elastic force and the connecting plate when the connecting slide rod is not stressed, the upper blank of the shielding plate is used to shield the through groove, and the free entry and exit of the juvenile fish is limited. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole perspective view of the utility model;

[0019] Figure 2 It is a perspective view of the inside of the connecting cylinder of the utility model;

[0020] Figure 3 It is a Figure 1 A enlarged schematic view;

[0021] Figure 4 It is a schematic view of the fixed seat structure of the utility model;

[0022] Figure 5 It is a perspective view of the bottom cylinder structure of the utility model.

[0023] MAIN COMPONENT SYMBOL EXPLANATION

[0024] 1, connecting cylinder; 11, through groove; 12, connecting rope; 13, floating plate; 2, bottom cylinder; 21, counterweight; 3, shielding plate; 31, through hole; 32, fixed strip; 4, pull rope; 41, bait net bag; 5, connecting frame; 6, connecting slide rod; 61, insertion hole; 7, connecting plate; 8, sleeve ring; 9, fixed seat; 91, movable insertion rod; 92, spring. DETAILED DESCRIPTION

[0025] The utility model embodiment provides a juvenile green puffer fish separating device.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The utility model provides a kind of green fin pufferfish fry device for grading, including connecting cylinder 1 and the bottom cylinder 2 of screw connection in the bottom of connecting cylinder 1, the outer surface of connecting cylinder 1 is provided with through slot 11, the inner wall of connecting cylinder 1 is slidably connected with the shielding plate 3 for shielding through slot 11, the inner wall of connecting cylinder 1 is fixedly connected with multiple fixed strips 32, multiple shielding plates 3 are slidably connected between multiple fixed strips 32 respectively, shielding plate 3 is stably lifted and slid in the inside of connecting cylinder 1 under the action of fixed strip 32, multiple through holes 31 are provided on shielding plate 3, fry enters the inside of connecting cylinder 1 by through slot 11 and the through hole 31 on shielding plate 3, the size of multiple through holes 31 decreases gradually from bottom to top, by controlling shielding plate 3 to lift, different sizes of through hole 31 are aligned with through slot 11, to select the size of fry that enters the inside of connecting cylinder 1.

[0027] Please refer to Figure 1 and Figure 2 , the number of shielding plate 3 is multiple, multiple shielding plates 3 are connected by connecting frame 5, multiple shielding plates 3 are controlled to lift and slide together under the action of connecting frame 5, the top of connecting cylinder 1 is fixedly connected with connecting rope 12, the other end of connecting rope 12 is fixedly connected with floating plate 13, the bottom of bottom cylinder 2 is fixedly connected with counterweight 21, counterweight 21 is used to counterweight device, device is driven to float in water under the action of floating plate 13 and connecting rope 12.

[0028] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , connecting cylinder 1 is provided with adjusting mechanism for adjusting connecting frame 5 to lift, adjusting mechanism is fixed on the connecting slide rod 6 of the top of connecting frame 5, the top of connecting cylinder 1 is fixedly connected with sleeve ring 8, one end of connecting slide rod 6 extends to the top of connecting cylinder 1 by sleeve ring 8, the top of connecting slide rod 6 is fixedly connected with connecting plate 7, connecting plate 7 and connecting cylinder 1 are connected by tension spring, multiple shielding plates 3 are driven to slide together under the connection of connecting frame 5 by controlling connecting slide rod 6 to slide in the inside of sleeve ring 8, connecting slide rod 6 is driven to slide down quickly by the rebound of tension spring when connecting slide rod 6 is not stressed.

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4The connecting slide rod 6 is provided with a socket 61, the sleeve ring 8 is fixedly connected with a fixed seat 9, the fixed seat 9 is slidably connected with a movable plug rod 91, one end of the movable plug rod 91 is inserted into the socket 61, the movable plug rod 91 is fixedly connected with a baffle, the movable plug rod 91 is sleeved with a spring 92, the movable plug rod 91 is inserted into the socket 61 to limit the sliding of the connecting slide rod 6, and one end of the movable plug rod 91 is stably inserted into the socket 61 under the elastic force of the spring 92.

[0030] Please refer to Figure 1 and Figure 2 The bottom of the connecting frame 5 is provided with a pull rope 4, the other end of the pull rope 4 is fixedly connected with a bait net bag 41, bait such as minced fish and minced shrimp is put into the bait net bag 41 to attract juvenile fish, the top of the pull rope 4 is fixedly connected with a bolt, the bolt is threadedly connected to the bottom of the connecting frame 5, and the bait net bag 41 is taken out for filling by unscrewing the bolt at the top of the pull rope 4 from the bottom of the connecting frame 5.

[0031] Working principle: the bottom cylinder 2 is taken off from the connecting cylinder 1 by rotating the bottom cylinder 2, the bolt at the top of the pull rope 4 is unscrewed from the bottom of the connecting frame 5 to take out the bait net bag 41 for filling bait such as minced fish and minced shrimp, the connecting slide rod 6 is lifted and slid by pulling out the movable plug rod 91 from the socket 61, the plurality of shielding plates 3 are driven to slide together under the connecting action of the connecting frame 5, juvenile fish of different sizes are aligned with the through holes 31 and the through grooves 11, the device is put into water by screwing the bottom cylinder 2, the device floats in water under the action of the counterweight 21 and the buoyancy of the floating plate 13, juvenile fish are attracted by bait, the juvenile fish enter the inside of the connecting cylinder 1 through the through holes 31 and the through grooves 11, and the device is taken out of water when the juvenile fish reach a certain number, the device is turned into a new pool, the bottom cylinder 2 is unscrewed, and the juvenile fish separating operation is completed.

[0032] The basic principle and main features of the present application are shown and described above, and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for separating juvenile green pufferfish, comprising a connecting tube (1) and a bottom tube (2) threadedly connected to the bottom of the connecting tube (1), characterized in that: The outer surface of the connecting tube (1) is provided with a through groove (11), and the inner wall of the connecting tube (1) is slidably connected with a shielding plate (3) for shielding the through groove (11), and the shielding plate (3) is provided with a plurality of through holes (31), and the sizes of the plurality of through holes (31) decrease from bottom to top. There are a plurality of shielding plates (3), and the plurality of shielding plates (3) are connected to each other through a connecting frame (5). The connecting tube (1) is provided with an adjusting mechanism for adjusting the connecting frame (5) for lifting and lowering, and a drawstring (4) is installed at the bottom of the connecting frame (5), and the other end of the drawstring (4) is fixedly connected to a bait net bag (41).

2. The device for separating juvenile greenfin pufferfish according to claim 1, wherein: The adjustment mechanism is fixed to a connecting slide rod (6) at the top of the connecting frame (5); a collar (8) is fixedly connected to the top of the connecting tube (1); and one end of the connecting slide rod (6) extends to the top of the connecting tube (1) through the collar (8).

3. A device for separating juvenile greenfin pufferfish according to claim 2, characterized in that: The connecting slide rod (6) is provided with a socket (61), the collar (8) is fixedly connected to a fixing seat (9), the interior of the fixing seat (9) is slidably connected to a movable plug rod (91), one end of the movable plug rod (91) is inserted into the interior of the socket (61), a blocking piece is fixedly connected to the movable plug rod (91), and a spring (92) is sleeved on the movable plug rod (91).

4. The device for separating juvenile greenfin pufferfish according to claim 3, wherein: A connecting plate (7) is fixedly connected to the top of the connecting slide rod (6), and the connecting plate (7) and the connecting cylinder (1) are connected via a tension spring.

5. The device for separating juvenile greenfin pufferfish according to claim 1, characterized in that: The inner wall of the connecting tube (1) is fixedly connected to a plurality of fixing strips (32), and the plurality of shielding plates (3) are respectively slidably connected between the plurality of fixing strips (32).

6. The device for separating juvenile greenfin pufferfish according to claim 1, characterized in that: The top of the pull rope (4) is fixedly connected with a bolt, and the bolt is threadedly connected to the bottom of the connecting frame (5).

7. The device for separating juvenile greenfin pufferfish according to claim 1, characterized in that: The top of the connecting cylinder (1) is fixedly connected to a connecting rope (12), the other end of the connecting rope (12) is fixedly connected to a floating plate (13), and the bottom of the bottom cylinder (2) is fixedly connected to a counterweight (21).

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