Fry screening device

Abstract

The utility model provides a fry screening device which comprises a water tank, supporting legs are fixed to the bottom of the water tank, a U-shaped moving frame is arranged in the water tank, and the inner side of the moving frame is detachably connected with a screening plate. A perforated plate capable of moving transversely is arranged on one side in the water tank, and a connecting plate located outside the water tank is fixed to the top of the perforated plate. A conveying unit is fixed on the outer wall of the water tank; the end part of the connecting plate is connected with a conveying surface of the conveying unit; the bottom of the water tank is communicated with two eudipleural drainage pipes, the bottoms of the drainage pipes are in threaded connection with sealing caps, and the screening plate is located between the two drainage pipes. According to the fish fry screening device, large and small fish fries can be effectively and actively screened, small fish fries are prevented from being mixed in the large fish fries, and the screened large and small fish fries can be discharged respectively subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a fry screening device. Background Art

[0002] When freshwater fish fry are being cultured, the same batch of fish fry may have different sizes due to various reasons such as feeding. After the fish fry have been cultured for a period of time, they need to be placed in subsequent culture ponds according to their sizes.

[0003] For example, the utility model patent with the announcement number CN219894290U discloses a fry screening device, which relates to the field of aquaculture technology, including a water tank, a water inlet is fixedly installed at the left end of the water tank, a handle is fixedly installed on the surface of the water tank, a water outlet is fixedly installed at the rear end of the water tank, a protective cover is rotatably connected to one end of the water outlet, a slot A is fixedly installed on the inner wall of the water tank, and a screen is slidably provided on the inner wall of the slot A. In the utility model, the slot A is provided to make the screen more stable during installation, thereby avoiding the problem of the screen moving due to the collision of the fry in the water tank, the slide, the slider and the spring are provided to make the screen have a limiting effect during installation, thereby avoiding the problem of the screen popping out due to the buoyancy of the water, and the pull ring, the thin rod and the baffle are provided to make the screen more convenient to disassemble, so that the surface of the screen can be easily cleaned, the health of the fry is improved, and the screening efficiency is also improved.

[0004] Although the above device can screen the fry through the screen, it is limited to passive screening, and the fry can only be screened by passing through the screen by themselves, resulting in incomplete screening of the fry, so that small fry are mixed with large fry. Utility Model Content

[0005] The utility model discloses a fry screening device, which solves the problem that the fry can only be screened by passing through the screen by themselves, resulting in incomplete fry screening.

[0006] In order to solve the above technical problems, the utility model specifically adopts the following technical solutions:

[0007] A fry screening device comprises a water tank, the bottom of which is fixed with supporting legs, a U-shaped movable frame is arranged inside the water tank, the inner side of the movable frame is detachably connected with a screening plate; a perforated plate which can be moved laterally is arranged on one side of the water tank, a connecting plate located outside the water tank is fixed on the top of the perforated plate; a conveying unit is fixed on the outer wall of the water tank, the end of the connecting plate is connected to the conveying surface of the conveying unit; the bottom of the water tank is connected with two drainage pipes which are symmetrical on the left and right, the bottom of the drainage pipes is threadedly connected with a sealing cap, and the screening plate is located between the two drainage pipes.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] First, the fry are put into the water tank so that the fry are located between the perforated plate and the screening plate. When the fry need to be screened, the conveying unit is started so that the connecting plate drives the perforated plate to move toward the screening plate, and the fry are driven to move toward the screening plate, so that after the small fry pass through the sieve holes on the screening plate, the small fry are located on the side of the screening plate away from the perforated plate, and the large fry are located on the side of the screening plate close to the perforated plate, thereby completing the screening of large and small fry; when the large and small fry need to be fished out respectively after the screening, the sealing caps on the two drain pipes can be removed respectively, and the large and small fry can be discharged respectively; the utility model can effectively and actively screen the large and small fry, avoids the mixing of small fry in the large fry, and can also discharge the large and small fry separately after the screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model in front view and section;

[0011] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0012] Figure 3 This is a schematic diagram of the structure of the water tank of the utility model from a top view;

[0013] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at B.

[0014] In the figure: 1. water tank; 2. mobile frame; 21. cleaning plate; 22. fixed plate; 3. top plate; 31. plug rod; 32. pull rod; 33. load-bearing plate; 34. electric telescopic rod; 4. connector; 41. screening plate; 5. motor; 51. screw rod; 52. limit rod; 6. perforated plate; 61. connecting plate; 62. conveying unit; 7. mounting plate; 71. support plate; 72. storage box; 73. rotating rod; 74. sunshade; 75. positioning plate; 76. load-bearing block; 77. vertical plate; 78. screw rod; 8. water inlet pipe; 9. drain pipe; 91. sealing cap; 10. support leg. DETAILED DESCRIPTION

[0015] The specific contents of the utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 and Figure 3As shown, the utility model provides a fry screening device, including a water tank 1, a support leg 10 is fixed to the bottom of the water tank 1, a U-shaped movable frame 2 is provided in the water tank 1, and a screening plate 41 is detachably connected to the inner side of the movable frame 2; a perforated plate 6 that can move laterally is provided on one side of the water tank 1, and a connecting plate 61 located outside the water tank 1 is fixed to the top of the perforated plate 6; a conveying unit 62 is fixed to the outer wall of the water tank 1, and the end of the connecting plate 61 is connected to the conveying surface of the conveying unit 62; the bottom of the water tank 1 is connected to two left-right symmetrical drain pipes 9, and the bottom of the drain pipe 9 is threadedly connected to a sealing cap 91, and the screening plate 41 is located between the two drain pipes 9.

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, two left-right symmetrical fixed plates 22 are fixed to the inner side of the movable frame 2, and the screening plate 41 is located between the two fixed plates 22; a top plate 3 is provided above the water tank 1, and a plug rod 31 penetrating the fixed plate 22 is fixed to the bottom of the top plate 3, the bottom surface of the top plate 3 is in contact with the top surface of the water tank 1, and a T-shaped slide groove is provided on the bottom surface of the top plate 3; a connector 4 slidably connected to the slide groove is fixed to the top of the screening plate 41, and the connector 4 is T-shaped. After the connecting head 4 is connected to the slide groove on the bottom surface of the top plate 3, the screening plate 41 can be fixed on the bottom of the top plate 3, and then the screening plate 41 can be inserted between the two fixed plates 22, so that the screening plate 41 is located on the inner side of the movable frame 2; at the same time, the bottom surface of the top plate 3 is in contact with the top of the water tank 1, and the insertion rod 31 passes through the fixed plate 22, so that the top plate 3 can be effectively limited; when the dirt on the screening plate 41 needs to be cleaned later, the top plate 3 is moved upward, and the screening plate 41 is moved to the outside of the water tank 1, and then the connecting head 4 is moved out of the slide groove on the bottom surface of the top plate 3.

[0018] like Figure 3 As shown, a bearing plate 33 is slidably connected to one side of the water tank 1, and an electric telescopic rod 34 is fixed on the bearing plate 33, and the telescopic end of the electric telescopic rod 34 is connected to the top plate 3. After the electric telescopic rod 34 is started, the telescopic end of the electric telescopic rod 34 extends to push the top plate 3 upward, so that the connector 4 can drive the screening plate 41 to move upward, so that the screening plate 41 moves to the outside of the water tank 1, so that the staff can separate the screening plate 41 from the top plate 3.

[0019] like Figure 1 and Figure 3As shown, a motor 5 is fixed on one side of the water tank 1, and a screw rod 51 is fixed on the rotating shaft of the motor 5, which penetrates the water tank 1 and is threadedly connected to the mobile frame 2; a limit rod 52 is fixed in the water tank 1, which penetrates the mobile frame 2 and is slidably connected to the mobile frame 2. When it is necessary to discharge the sieved fry out of the water tank 1, the motor 5 can be started to make the mobile frame 2 move toward the perforated plate 6 first, and the top plate 3 drives the electric telescopic rod 34 and the bearing plate 33 to move (the bearing plate 33 is located above the conveying unit 62). When the sieve plate 41 gradually moves toward the perforated plate 6, the large fry can be discharged through a drain pipe 9 close to the perforated plate 6, so as to avoid the large fry from mixing with the small fry, and to speed up the discharge of the large fry; after the drain pipe 9 away from the perforated plate 6 is opened, the small fry can be discharged, and the limit rod 52 can assist the mobile frame 2 to move.

[0020] like Figure 1 , Figure 3 and Figure 4 As shown, a pull rod 32 extending to the outside of the water tank 1 is fixed on one side of the connector 4; cleaning plates 21 located below the screening plates 41 are fixed on both sides of the mobile frame 2. The setting of the pull rod 32 facilitates the connector 4 to slide to the outside of the slide groove on the top plate 3 through the pull rod 32 after the screening plate 41 moves to the outside of the water tank 1; the motor 5 adopts a servo motor, and the setting of the cleaning plate 21 facilitates the cleaning of the dirt on the bottom surface of the water tank 1 after the mobile frame 2 drives the cleaning plate 21 to move back and forth horizontally.

[0021] like Figure 1 As shown, a mounting plate 7 and a bearing block 76 are fixed on both sides of the water tank 1, a supporting plate 71 is fixed on the top of the mounting plate 7, a storage box 72 is fixed on the supporting plate 71, a rotating rod 73 is rotatably connected inside the storage box 72, a sunshade cloth 74 is rolled up on the rotating rod 73, a positioning plate 75 is fixed on one end of the sunshade cloth 74 located outside the storage box 72, a positioning hole is provided on the positioning plate 75; a vertical plate 77 is fixed on the top of the bearing block 76, an opening is provided on the vertical plate 77 for the positioning plate 75 to pass through, and a screw 78 matching the positioning hole is threadedly connected to the top of the vertical plate 77. When the water tank 1 is set outdoors or when the sunlight is too strong, the positioning plate 75 can be pulled to move the sunshade cloth 74 out of the storage box 72, and the sunshade cloth 74 will block the top of the water tank 1 to play a sunshade role; then the positioning plate 75 is inserted into the opening of the vertical plate 77, and the screw rod 78 is rotated to make the bottom of the screw rod 78 inserted into the positioning hole on the positioning plate 75 to fix the positioning plate 75; when the sunshade cloth 74 is not needed later, the rotating rod 73 is rotated to roll up the sunshade cloth 74 in the storage box 72.

[0022] like Figure 1 As shown, a fixedly connected water inlet pipe 8 is passed through one side of the water tank 1. The provision of the water inlet pipe 8 facilitates the staff to inject water into the water tank 1.

[0023] When in use, the fry can be put into the water tank 1 so that the fry are located between the perforated plate 6 and the screening plate 41. When the fry need to be screened, the conveying unit 62 can be started. The conveying unit 62 includes a frame, an active roller, a driven roller conveyor belt and a driving motor. After the driving motor drives the active roller to rotate, the conveyor belt can be operated to drive the connecting plate 61 to move, so that the perforated plate 6 is close to the screening plate 41; after the perforated plate 6 gradually compresses the activity space of the fry, the small fry can pass through the sieve holes on the screening plate and move to the side of the screening plate 41 away from the perforated plate 6, thereby completing the screening of large and small fry.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fry screening device, comprising a water tank (1), the bottom of which is fixed with legs (10), characterized in that: A U-shaped movable frame (2) is provided in the water tank (1), and a screening plate (41) is detachably connected to the inner side of the movable frame (2); a perforated plate (6) that can be moved laterally is provided on one side of the water tank (1), and a connecting plate (61) located outside the water tank (1) is fixed on the top of the perforated plate (6); a conveying unit (62) is fixed on the outer wall of the water tank (1), and the end of the connecting plate (61) is connected to the conveying surface of the conveying unit (62); the bottom of the water tank (1) is connected to two drainage pipes (9) that are symmetrical on both sides, and a sealing cap (91) is threadedly connected to the bottom of the drainage pipe (9), and the screening plate (41) is located between the two drainage pipes (9).

2. A fry screening device according to claim 1, characterized in that: Two fixed plates (22) are fixed on the inner side of the movable frame (2), and the screening plate (41) is located between the two fixed plates (22); a top plate (3) is provided above the water tank (1); a plug rod (31) penetrating the fixed plate (22) is fixed at the bottom of the top plate (3); the bottom surface of the top plate (3) is in contact with the top surface of the water tank (1); a T-shaped sliding groove is provided on the bottom surface of the top plate (3); a connector (4) slidably connected to the sliding groove is fixed at the top of the screening plate (41); the connector (4) is arranged in a T-shape.

3. A fry screening device according to claim 2, characterized in that: A bearing plate (33) is slidably connected to one side of the water tank (1), an electric telescopic rod (34) is fixed on the bearing plate (33), and a telescopic end of the electric telescopic rod (34) is connected to the top plate (3).

4. A fry screening device according to claim 1, characterized in that: A motor (5) is fixed to one side of the water tank (1), and a screw rod (51) penetrating the water tank (1) and threadedly connected to the movable frame (2) is fixed to the rotating shaft of the motor (5); a limit rod (52) penetrating the movable frame (2) and slidably connected to the movable frame (2) is fixed in the water tank (1).

5. A fry screening device according to claim 2, characterized in that: A pull rod (32) extending outside the water tank (1) is fixed to one side of the connector (4); cleaning plates (21) located below the screening plate (41) are fixed to both sides of the movable frame (2).

6. A fry screening device according to claim 1, characterized in that: A mounting plate (7) and a bearing block (76) are fixed to both sides of the water tank (1), a support plate (71) is fixed to the top of the mounting plate (7), a storage box (72) is fixed to the support plate (71), a rotating rod (73) is rotatably connected inside the storage box (72), a sunshade cloth (74) is rolled up on the rotating rod (73), a positioning plate (75) is fixed to one end of the sunshade cloth (74) located outside the storage box (72), and a positioning hole is provided on the positioning plate (75); a vertical plate (77) is fixed to the top of the bearing block (76), an opening is provided on the vertical plate (77) for the positioning plate (75) to pass through, and a screw rod (78) matching the positioning hole is threadedly connected to the top of the vertical plate (77).

7. A fry screening device according to claim 1, characterized in that: A fixedly connected water inlet pipe (8) passes through one side of the water tank (1).

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