Fry packaging device

Abstract

The utility model discloses a fry packing device which comprises a carriage body, walking wheels are arranged at the bottom of the carriage body, a fish outlet is formed in the upper section of the surface of the front end of the carriage body, a sliding way used for guiding fry to flow is obliquely arranged at the top in the carriage body, the sliding way is communicated with the fish outlet, and an oxygenation mechanism and a water collecting tank are further arranged in the carriage body. A film guide pipe communicated with the fish outlet is arranged at the front end of the outer surface of the trolley box body in the vertical direction, the film guide pipe is a hollow pipeline, and a film pulling mechanism used for providing a film is arranged at the front end of the top of the trolley box body; an upper plastic packaging mechanism and a roller mechanism are sequentially arranged at the front end of the vehicle box body below the fish outlet and on the two sides of the film guide pipe, and a lower plastic packaging mechanism is arranged below the roller mechanism to seal and cut the film; fry can be automatically packaged, manual operation is not needed, and intelligence of the fry breeding industry is promoted.

Description

TECHNICAL FIELD

[0001] The utility model relates to fry packing technology, specifically relates to a fry packing device. BACKGROUND

[0002] At present, the fish fry is usually packed by manual work when the fish fry is sold in the fish fry farm, and the long-time manual work leads to low packing efficiency of the fish fry, and the packing is difficult, and the health of the fish fry is also harmed during operation, therefore, in order to improve the packing precision and efficiency of the fish fry, some aquaculture enterprises begin to develop towards mechanization, intelligentization and networking.

[0003] And the Chinese example public number CN241749380U provides a kind of fry counting device, the device can not only realize fry counting, still be equipped with circulating pump, water recycling can be realized, but above-mentioned embodiment is after counting fry, fry is dropped into net bag in fish outlet, it needs to be fished up again and water is filled bag packing by artificial, and fish fry packing work is still inevitably led to fish fry injury when artificial, and such packing mode is time-consuming and laborious. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of fry packing device, can pack fish fry, without manual operation.

[0005] The utility model is realized by the following technical solutions:

[0006] A kind of fry packing device, including car box body, the bottom of car box body is provided with travelling wheel, the surface of the front end of car box body is provided with fish outlet, the top inside car box body is provided with inclined chute for guiding fish fry flow, chute is communicated with fish outlet, car box body is also provided with oxygenation mechanism and water collecting tank, water collecting tank is communicated with chute and supplies water for chute and drains, and the outer surface of car box body is provided with the guide film tube being communicated with fish outlet along vertical direction in front end, guide film tube is hollow pipe, the top front end of car box body is provided with the film pulling mechanism for providing film, and the outer ring of guide film tube is provided with the guide for guiding film, and car box body front end is located below fish outlet and is located at the position of the both sides of guide film tube and is sequentially provided with upper plastic sealing mechanism and gyro wheel mechanism, and lower plastic sealing mechanism is provided below gyro wheel mechanism to seal and cut film.

[0007] Preferably, the guide includes a ring groove and a U-shaped groove, the ring groove is provided on the outer ring of the guide film tube with a gap, and the other end of the U-shaped groove is communicated with the ring groove.

[0008] Further, the film pulling mechanism is fixed on the top front end of the vehicle box body by a frame, and comprises a driven roller one, a retaining rod, a driven roller two, an electric roller, a limiting roller, a film pulling roller, a limiter and a motor one, wherein one end of the film pulling roller is movably connected to the end of the frame through the limiter, and the limiting roller, the electric roller, the driven roller two, the retaining rod and the driven roller one are sequentially connected to the frame near the side of the film pulling roller, the film provided by the film pulling roller sequentially passes through the gap between the electric roller and the limiting roller, is pulled to the retaining rod, and then passes through the driven roller two, the driven roller one and finally is stretched to the upper plastic sealing mechanism through the ring groove and the U-shaped groove of the guide.

[0009] Preferably, the upper plastic sealing mechanism is connected to the vehicle box body through a fixed plate, and comprises a cylinder one, a crankshaft, a cam, a clamping plate, a heat insulation plate one, a hot melting plate one and a fixed side plate, the fixed plate is fixed to the upper part of the inner wall of the vehicle box body, the bottom of the fixed plate is connected to a fixed shaft and a movable shaft, the clamping plate is movably connected to the two sides of the fixed shaft through a connecting shaft and penetrates the outer shell of the vehicle box body at the front end and is located on the two sides of the film guide pipe, the upper section of the movable shaft is fixedly connected to the crankshaft, the other end of the crankshaft is movably connected to the cylinder one, the cylinder one is movably connected to one of the clamping plates through the fixed side plate, the lower section of the movable shaft is further fixedly sleeved with a cam for controlling the opening and closing of the clamping plate, the two clamping plates are movably connected to the cam through push rods, the front ends of the two clamping plates are further fixedly connected to the heat insulation plate one, and the surface of the heat insulation plate one is fixedly connected to the hot melting plate one.

[0010] Preferably, the lower plastic sealing mechanism is fixedly installed on the outer surface of the vehicle box body and is symmetrical on both sides, and comprises a cylinder two, a pressing plate, a heat insulation plate two, a hot melting plate two, a guard plate, a cutter and a shaft sleeve, the cylinder two is installed on the side of the fixed frame away from the film guide pipe, the output end of the cylinder two is connected to the pressing plate, the pressing plate is connected to the shaft sleeve on one side, the shaft sleeve penetrates the fixed frame to connect the heat insulation plate two, the shaft sleeve and the fixed frame are movably connected through the guard plate, the surface of the heat insulation plate two close to the film guide pipe is fixedly connected to the hot melting plate two, and the recess of the hot melting plate two is provided with the cutter.

[0011] Further, the roller mechanism comprises a motor two and two groups of rollers, a roller shaft and a gear, the motor two is installed on the inner wall of the vehicle box body, the rollers are respectively arranged on the two sides of the film guide pipe and are located between the upper plastic sealing mechanism and the lower plastic sealing mechanism, the center of the roller is fixedly connected to the roller shaft, the roller shaft extends to the inside of the vehicle box body through the outer shell of the vehicle box body and is indirectly driven by the gear and the motor two.

[0012] Preferably, one end of the slide is further provided with a water outlet pipe, the water outlet pipe is communicated with the water collecting tank and is provided with a water pumping device, the middle section of the slide is further connected to a drain pipe through a gauze screen, and the other end of the drain pipe is communicated with the water collecting tank.

[0013] Preferably, the oxygenation mechanism comprises an oxygen cylinder and a gas delivery tube, the oxygen cylinder is controlled by a valve, one end of the gas delivery tube is connected to the valve, and the other end extends into the membrane guide tube.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The device box body realizes automatic plastic packaging and cutting of the film by setting the film pulling mechanism, the membrane guide tube, the upper packaging mechanism, the roller mechanism and the lower packaging mechanism, and by setting the slide in the device box body to guide the fry to flow into the prepared packaging bag through the cavity of the membrane guide tube, and then by the top plastic packaging and cutting of the lower packaging mechanism, the automatic packaging of the fry is realized, manual operation is not needed, the packaging process is more efficient and the fry is not easily damaged, the sealed packaging bag is also more convenient for transportation, so the transportation of the fry is facilitated.

[0016] (2) The device is also provided with an oxygenation mechanism comprising an oxygen cylinder, the oxygen cylinder is communicated with the inside of the membrane guide tube through the gas delivery tube, so that oxygen can enter the packaging bag along the membrane guide tube to provide oxygen for the survival of the fry, prevent the fry from dying in the transportation process due to the sealing of the packaging bag after the packaging is completed, and further prevent the fry from being damaged.

[0017] (3) The device is provided with a water collecting tank and a slide in communication, a water outlet pipe provides a certain water flow for the slide through a water pumping device, the fry is driven to flow into the packaging bag naturally from the slide, the fry is prevented from being damaged by scratching the slide wall, and the water environment for the survival of the fry in the packaging bag is provided, and the drainage pipe separated by the gauze net in the middle section of the slide is used to appropriately drain the excess water to avoid the influence of the excessive water in the packaging bag on the packaging. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a position structure schematic view of the guide of the utility model;

[0020] Figure 3 It is a structure schematic view of the upper plastic packaging mechanism in the utility model;

[0021] Figure 4 It is a rear view of the utility model;

[0022] Figure 5 It is a three-dimensional top view of the utility model Figure 4 It is a sectional view schematic view of A-A in the utility model;

[0023] Figure 6 It is a three-dimensional top view of the utility model.

[0024] In the figure: 1, driven drum one; 2, holding rod; 3, driven drum two; 4, motor drum; 5, limiting drum; 6, film pulling drum; 7, limiter; 8, vehicle body; 9, motor one; 10, frame; 11, guide; 12, traveling wheel; 13, pressing plate; 14, cylinder two; 15, fixed frame; 16, heat insulation plate two; 17, hot melting plate two; 18, roller; 19, guard plate; 20, roller; 21, film guide tube; 22, hot melting plate one; 23, clamping plate; 24, heat insulation plate one; 25, fish outlet; 26, gas delivery pipe; 27, water outlet pipe; 28, slide side; 29, oxygen cylinder; 30, valve; 31, connecting shaft; 32, opening; 33, cylinder one; 34, crankshaft; 35, cam; 36, sleeve; 37, slide; 38, drain pipe; 39, water collecting tank; 40, motor two; 41, gear; 42, fixed shaft; 43, fixed plate; 44, movable shaft; 45, fixed side plate; 46, push rod; 47, cutter; 48, shaft sleeve. DETAILED DESCRIPTION

[0025] The utility model will be explained in further detail in combination with specific embodiments, which is the explanation of the utility model but not the limitation.

[0026] Reference Figure 1 And Figure 6 As shown in the figure, the embodiment provides a fry packaging device, which comprises a vehicle body 8, an oxygenation mechanism, a film pulling mechanism, a roller mechanism, a film guide tube 21, an upper plastic sealing mechanism and a lower plastic sealing mechanism, the vehicle body 8 is made of steel plate, the inside is provided with a water collecting tank 39 and the oxygenation mechanism, and the bottom is provided with traveling wheels 12 through bolts, and the film pulling mechanism is installed at the top of the vehicle body 8 to provide a film, the film guide tube 21 is fixedly connected to the front end of the vehicle body 8 in the vertical direction, the film is guided to the upper plastic sealing mechanism through the film guide tube 21 and the guide 11, the upper plastic sealing mechanism is installed at the upper part of the front end of the vehicle body 8 to seal the side of the film, the roller mechanism is installed at the middle part of the front end of the vehicle body 8 to guide the film to continue to move downward to the lower plastic sealing mechanism, and the lower plastic sealing mechanism is installed at the lower part of the front end of the vehicle body 8 to seal and cut and separate the bottom and top of the film.

[0027] Specifically, as Figure 2As shown, the film guide tube 21 is fixedly connected to the front end of the tank body 8 in the vertical direction, and the upper end of the outer ring of the film guide tube 21 is provided with a guide 11, which includes a ring groove and a U-shaped groove. The ring groove is provided on the outer ring of the film guide tube 21 with a gap, and the U-shaped groove is fixedly connected to the tank body 8 at one end and communicates with the ring groove at the other end. The film is guided to pass through the ring groove and the U-shaped groove, and the U-shaped groove is used to guide the side of the film to the side sealing mechanism for side sealing. At the same time, the film guide tube 21 is a hollow pipe, the upper end of the film guide tube 21 communicates with the fish outlet 25 on the surface of the upper section of the tank body 8, and the upper section inside the tank body 8 is provided with a slide 37, which is inclined and provided with slide side plates 28 on both sides to prevent the fry from flowing away. The lower end of the slide 37 is connected to the fish outlet 25 and extends to the outside of the tank body 8 to communicate with the film guide tube 21, while the high end of the slide 37 is connected to the top of the rear end of the tank body 8 and is provided with an opening 32 to communicate with the outside of the tank body 8 for putting the fry, and as Figure 4 As shown, the high end of the slide 37 is also provided with a water outlet pipe 27, which communicates with a water collecting tank 39 and is provided with a water pumping device, and the middle section of the slide 37 is also provided with a drain pipe 38 separated by a gauze, the other end of the drain pipe 38 communicates with the water collecting tank 39, realizing the recycling of water, and the fry enters the opening 32, flows along the slide 37 and flows out of the fish outlet 25 into the film guide tube 21, and then flows into the packaging bag from the bottom end of the film guide tube 21.

[0028] The film pulling mechanism is fixed to the top front end of the tank body 8 by the rack 10, and includes a driven roller one 1, a retaining rod 2, a driven roller two 3, an electric roller 4, a limiting roller 5, a film pulling roller 6, a limiter 7 and a motor one 9. One end of the film pulling roller 6 is movably connected to the end of the rack 10 through the limiter 7, and the side of the rack 10 close to the film pulling roller 6 is also sequentially connected to the limiting roller 5, the electric roller 4, the driven roller two 3, the retaining rod 2 and the driven roller one 1. The film pulling roller 6 is used to provide the film, and the limiter 7 can keep the film pulling roller 6 rotating stably. The motor one 9 is also installed on the rack 10 and is used to drive the electric roller 4 to rotate. When the film pulling roller 6 provides the film, the film passes through the gap between the electric roller 4 and the limiting roller 5 in sequence, is pulled to the retaining rod 2, and then passes through the driven roller two 3, the driven roller one 1, and is stretched to the upper sealing mechanism through the ring groove and the U-shaped groove of the guide 11.

[0029] As Figure 3As shown, the upper plastic sealing mechanism is connected to the vehicle box body 8 through a fixing plate 43, the fixing plate 43 is fixed to the upper portion of the inner wall of the vehicle box body 8, and the bottom of the fixing plate 43 is fixedly connected with a fixed shaft 42 and movably connected with a movable shaft 44, the upper plastic sealing mechanism includes a cylinder one 33, a crankshaft 34, a cam 35, a clamping plate 23, a heat insulation plate one 24, a hot melting plate one 22 and a fixed side plate 45, the clamping plate 23 is movably connected to both sides of the fixed shaft 42 through a connecting shaft 31 and the front end penetrates the outer shell of the vehicle box body 8 and is located on both sides of the film guide pipe 21, the upper segment of the movable shaft 44 is fixedly connected with the crankshaft 34, the other end of the crankshaft 34 is movably connected with the cylinder one 33, the cylinder one 33 is movably connected with one of the clamping plates 23 through the fixed side plate 45, and the lower segment of the movable shaft 44 is further fixedly sleeved with a cam 35, a sleeve 36 is arranged above the cam 35, and the two clamping plates 23 are abutted against the cam 35 through push rods 46, when the cylinder one 33 works to stretch and retract back and forth to pull the crankshaft 34 to drive the movable shaft 44 to rotate, the cam 35 also rotates, the two clamping plates 23 are continuously opened and closed to make reciprocating clamping action through the push rods, and the front ends of the two clamping plates 23 are movably connected with the heat insulation plate one 24, the heat insulation plate one 24 is fixedly connected with the hot melting plate one 22, and when the clamping plate 23 is closed, the two hot melting plates one 22 are adhered to the film side of the film guide pipe 21 to perform plastic sealing.

[0030] The roller mechanism is used for continuously transmitting the film plastic-sealed on the side to the lower plastic sealing mechanism, the roller mechanism includes two groups of rollers 20 and roller shafts 18, the rollers 20 are arranged on both sides of the film guide pipe 21 and below the upper plastic sealing mechanism, the rollers 20 are fixedly connected with the roller shafts 18 at the centers, and the roller shafts 18 penetrate the outer shell of the vehicle box body 8 to the inside of the vehicle box body 8 and are indirectly driven by the gear 41 and the motor two 40 installed on the inner wall of the vehicle box body 8.

[0031] The lower plastic sealing mechanism is located below the roller mechanism, and is used for plastic sealing the bottom and top of the film conveyed by the roller mechanism. The lower plastic sealing mechanism is fixedly installed on the outer surface of the vehicle box body 8 and symmetrical on both sides by the fixed frame 15. The lower plastic sealing mechanism comprises a cylinder 14, a pressing plate 13, a heat insulation plate 2 16, a hot melting plate 2 17, a guard plate 19, a cutter 47 and a shaft sleeve 48. The cylinder 2 14 is installed on the side of the fixed frame 15 away from the film guide pipe 21. The output end of the cylinder 2 14 is connected with the pressing plate 13. One side of the pressing plate 13 is connected with the shaft sleeve 48. The shaft sleeve 48 penetrates through the fixed frame 15 and is connected with the heat insulation plate 2 16. The shaft sleeve 48 is movably connected with the fixed frame 15 through the guard plate 19. The heat insulation plate 2 16 is fixedly connected with the hot melting plate 2 17 on the surface of the side close to the film guide pipe 21. The cutter 47 is arranged in the middle groove of the hot melting plate 2 17. When the roller mechanism guides the film with the side plastic sealed along the track of the film guide pipe 21 to the center of the lower plastic sealing mechanism, the cylinder 2 14 is started to work to make reciprocating extension and retraction, thereby driving the pressing plate 13 to move and transmitting the movement to the heat insulation plate 2 16 on the other side of the fixed frame 15 through the shaft sleeve 48 to make reciprocating extension and retraction. Therefore, the hot melting plate 2 17 also makes reciprocating extension and retraction to plastic seal the bottom of the film. When the film continues to move downward until the top of the film is located in the center of the lower plastic sealing mechanism, the cylinder 2 14 is started again to plastic seal the top of the film. At the same time, the cutter 47 arranged on the surface of the hot melting plate 2 17 cuts the top of the film.

[0032] As shown in Figure 5 The oxygen charging mechanism comprises an oxygen cylinder 29 and a gas conveying pipe 26. The oxygen cylinder is controlled by a valve 30. One end of the gas conveying pipe 26 is connected with the valve 30, and the other end extends into the film guide pipe 21 to make oxygen flow into the packaging bag to charge oxygen. After the oxygen charging is completed, the lower plastic sealing mechanism seals the packaging bag and cuts off. Thus, the packaging process of the fry is completed.

[0033] Working principle: Before the device is used to package the fry, the film is provided by the film pulling mechanism, so that the film passes through the ring groove and the U-shaped groove, and is guided to the upper plastic sealing mechanism to start the upper plastic sealing mechanism to plastic seal the side. Then the film with the plastic sealed side is driven by the roller mechanism to the lower plastic sealing mechanism. The lower plastic sealing mechanism is started to plastic seal the bottom to form a packaging bag with an open top. Then the water pumping device is started to supply water to the slide 37. The fry to be packaged is put into the slide 37 from the opening 32. The fry flows along the water flow through the slide 37 from the fish outlet 25 and falls into the film guide pipe 21. At the same time, the oxygen charging mechanism is started to charge oxygen into the film guide pipe 21 through the gas conveying pipe. The oxygen flows into the packaging bag. Then the lower plastic sealing device is started to plastic seal the top of the packaging bag and cut it.

[0034] The above is further detailed description of the utility model made in combination with specific embodiments, and cannot be deemed as the specific implementation of the utility model being limited to these embodiments. For ordinary skilled persons in the technical field of the utility model, without departing from the concept of the utility model, a number of simple deductions or substitutions can also be made, and all of them shall be deemed as falling within the protection scope of the utility model.

Claims

1. A fish fry packaging apparatus, characterized by, The application relates to a fish releasing vehicle, which comprises a vehicle body (8), the bottom of the vehicle body (8) is provided with travelling wheels (12), the surface of the front end of the vehicle body (8) is provided with a fish releasing opening (25), the inner top of the vehicle body (8) is provided with a chute (37) for guiding the flow of fry, the chute (37) is communicated with the fish releasing opening (25), the vehicle body (8) is further provided with an oxygen charging mechanism and a water collecting tank (39), the water collecting tank (39) is communicated with the chute (37) to supply water to the chute (37) and discharge water, the outer surface of the front end of the vehicle body (8) is provided with a film guide pipe (21) communicated with the fish releasing opening (25) in the vertical direction, the film guide pipe (21) is a hollow pipe, the top of the front end of the vehicle body (8) is provided with a film pulling mechanism for providing a film, the outer ring of the film guide pipe (21) is provided with a guide (11) for guiding the film, and the front end of the vehicle body (8) is provided with an upper plastic sealing mechanism and a roller mechanism in sequence at positions below the fish releasing opening (25) and on both sides of the film guide pipe (21), and the lower roller mechanism is provided below the lower plastic sealing mechanism to seal and cut the film.

2. A larval fish packing device according to claim 1, characterized in that The guide (11) comprises a ring groove and a U-shaped groove, the ring groove is arranged on the outer ring of the film guide pipe (21) and has a gap, and the U-shaped groove is fixedly connected at one end to the surface of the vehicle body (8) and communicated at the other end with the ring groove.

3. A larval fish packing device according to claim 2, wherein The film pulling mechanism is fixed to the top of the front end of the vehicle body (8) by a rack (10), and the film pulling mechanism comprises a driven roller one (1), a retaining rod (2), a driven roller two (3), an electric roller (4), a limiting roller (5), a film pulling roller (6), a limiter (7) and a motor one (9), wherein one end of the film pulling roller (6) is movably connected to the end of the rack (10) through the limiter (7), the limiting roller (5), the electric roller (4), the driven roller two (3), the retaining rod (2) and the driven roller one (1) are connected in sequence on one side of the rack (10) close to the film pulling roller (6), the film provided by the film pulling roller (6) passes through the gap between the electric roller (4) and the limiting roller (5) in sequence, is pulled to the retaining rod (2), and then passes through the driven roller two (3) and the driven roller one (1) and finally is stretched to the upper plastic sealing mechanism through the ring groove and the U-shaped groove of the guide (11).

4. The larva packing device according to claim 1, wherein The upper plastic sealing mechanism is connected to the vehicle box body (8) through a fixing plate (43), and comprises a cylinder (33), a crankshaft (34), a cam (35), a clamping plate (23), a heat insulation plate (24), a hot melting plate (22) and a fixing side plate (45), the fixing plate (43) is fixed to the upper part of the inner wall of the vehicle box body (8), the bottom of the fixing plate (43) is connected with a fixed shaft (42) and a movable shaft (44), the clamping plate (23) is movably connected to the two sides of the fixed shaft (42) through a connecting shaft (31) and the front end penetrates the outer shell of the vehicle box body (8) and is located on the two sides of the film guide pipe (21), the upper segment of the movable shaft (44) is fixedly connected with the crankshaft (34), the other end of the crankshaft (34) is movably connected with the cylinder (33), the cylinder (33) is movably connected with one of the clamping plates (23) through the fixing side plate (45), and the lower segment of the movable shaft (44) is further fixedly sleeved with the cam (35) for controlling the opening and closing of the clamping plate (23), the two clamping plates (23) are movably connected with the cam (35) through push rods (46), and the front ends of the two clamping plates (23) are movably connected with the heat insulation plate (24), and the surface of the heat insulation plate (24) is fixedly connected with the hot melting plate (22).

5. The larva packing device according to claim 1, wherein The lower plastic sealing mechanism is fixedly installed on the outer surface of the vehicle box body (8) and symmetrical on both sides, and comprises a cylinder (14), a pressing plate (13), a heat insulation plate (16), a hot melting plate (17), a guard plate (19), a cutter (47) and a shaft sleeve (48), the fixing frame (15) is installed with the cylinder (14) on the side away from the film guide pipe (21), the output end of the cylinder (14) is connected with the pressing plate (13), one side of the pressing plate (13) is connected with the shaft sleeve (48), the shaft sleeve (48) penetrates the fixing frame (15) and is connected with the heat insulation plate (16), the shaft sleeve (48) and the fixing frame (15) are movably connected through the guard plate (19), the surface of the side of the heat insulation plate (16) close to the film guide pipe (21) is fixedly connected with the hot melting plate (17), and the middle recess of the hot melting plate (17) is provided with the cutter (47).

6. A device for packing fry according to claim 4 or 5, characterised in that The roller mechanism comprises two groups of rollers (20), a roller shaft (18) and a gear (41), the motor (40) is installed on the inner wall of the vehicle box body (8), the rollers (20) are arranged on the two sides of the film guide pipe (21) and between the upper plastic sealing mechanism and the lower plastic sealing mechanism, the rollers (20) are fixedly connected with the roller shaft (18) at the center, the roller shaft (18) penetrates the outer shell of the vehicle box body (8) and extends to the inside of the vehicle box body (8) to be indirectly driven by the gear (41) and the motor (40).

7. A larval fish packing device according to claim 1, wherein The high end of the slide (37) is further provided with a water outlet pipe (27), the water outlet pipe (27) is communicated with the water collecting tank (39) and is provided with a water pumping device, and the middle segment of the slide (37) is further connected with a drain pipe (38) through a gauze, the other end of the drain pipe (38) is communicated with the water collecting tank (39).

8. A larval fish packing device according to claim 1, characterized in that The oxygen supply mechanism comprises an oxygen cylinder (29) and a gas delivery pipe (26), the oxygen cylinder (29) is controlled by a valve (30), one end of the gas delivery pipe (26) is connected to the valve (30), and the other end extends into the membrane guide pipe (21).

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