Fish tank, fish collecting vehicle and fish collecting method

Abstract

The present application belongs to the technical field of fish ponds, fish collecting vehicles and fish collecting methods, and discloses a fish pond capable of automatically collecting fish, a fish collecting vehicle capable of automatically weighing and a fish collecting method. The main technical features are as follows: the fish pond capable of automatically collecting fish comprises a fish pond with a fish outlet on the side, a fish outlet mechanism with a fish outlet channel surrounded by an upper plate, a lower plate and two side plates is arranged on the fish outlet, the outer side of the lower plate is inclined downward, a first water spraying pipe with a first water spraying opening is arranged on the side of the upper plate close to the fish outlet, and a gate is arranged at the fish outlet; the fish collecting vehicle capable of automatically weighing comprises a box body with a fish inlet on the upper part, an intermediate partition plate with a water leakage hole is arranged in the box body, and a water pump water collecting tank is arranged on the bottom plate of the box body. When collecting fish, the fish jumps over the lower edge of the fish outlet and slides into the box body in a natural swimming state, which not only does not cause harm to the harvested fish, but also does not cause harm or frighten to the remaining fish in the fish pond, the labor intensity of fish collecting is small, the efficiency is high, and the fish collecting cost is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of fish ponds, fish collection vehicles, and fish collection methods, and particularly relates to a fish pond that can automatically collect fish, a fish collection vehicle that can automatically weigh fish, and a fish collection method. Background Technology

[0002] Existing fish ponds, including those with fish outlets on the sides, require fish to be caught using nets or manually when harvesting. However, this method has several drawbacks: First, it is labor-intensive and inefficient, wasting time and increasing costs. Second, the fish in the pond are constantly frightened during the catching process, hindering their growth and development, especially after a small number of fish are caught, resulting in poor feeding and prolonged periods of non-feeding or semi-feeding, thus hindering the growth of the remaining fish. Third, the catching process not only damages the caught fish but also harms other fish in the pond.

[0003] To improve fish harvesting efficiency, a lifting frame is installed at the bottom of the fishpond, with a net above it. By lifting the frame and net, the fish are raised above the water surface and tilted towards the outlet. Under their own weight, the fish flow out of the outlet. While this improves harvesting efficiency, it also damages the collected fish and the remaining fish in the pond during the harvesting process, especially increasing the mortality rate of ornamental fish that will be raised after harvesting. Summary of the Invention

[0004] The first technical problem that this invention aims to solve is to provide a fish pond that can automatically collect fish without damaging or frightening the fish in the pond during the collection process, without causing harm to the collected fish, and which is conducive to the growth of the fish.

[0005] To solve the above problems, the technical solution adopted by the fish pond with automatic fish harvesting of the present invention is as follows:

[0006] The fishpond includes a fish outlet on the side, and a fish outlet mechanism is provided on the fish outlet. The fish outlet mechanism includes a fish outlet channel formed by an upper plate, a lower plate, and two side plates, and a flange located at the end of the fish outlet channel. The fish outlet mechanism is fixed to the fishpond wall around the fish outlet by the flange. The outer side of the lower plate is inclined downward. A first water spray pipe with a first water spray nozzle is provided on the upper plate near the fish outlet. The water spray direction of the first water spray nozzle is obliquely downward towards the fish outlet. A gate is provided at the fish outlet.

[0007] Its additional technical features are:

[0008] A second water spray pipe is provided on the side of the lower plate near the fish outlet, and a horizontal second water spray nozzle is provided on the second water spray pipe;

[0009] A mesh cover is provided inside the second water spray pipe, and a filter bag containing fish bait is provided inside the mesh cover;

[0010] The lower plate includes an upwardly inclined rising section, an arc transition section, and a downwardly inclined descending section. The second water spray pipe is located below the arc transition section, and the mesh cover is located on the rising section.

[0011] A lifting frame is installed at the bottom of the fish pond, and a net is installed above the lifting frame.

[0012] The second technical problem to be solved by the present invention is to provide an automatic weighing fish harvesting vehicle that is compatible with the above-mentioned fish pond that can automatically harvest fish.

[0013] To solve the above problems, the technical solution adopted by the automatic weighing fish collection vehicle of the present invention is as follows:

[0014] The device includes a fish inlet at the top and a wheel frame located below the fish inlet. Wheels are mounted on the wheel frame. A middle partition is installed inside the fish inlet, with a drainage hole on the middle partition. A water collection trough is located on the bottom plate of the fish inlet, with the bottom plate around the trough inclined towards it. A water pump is installed inside the trough, with a water outlet pipe extending out of the fish inlet from the water pump. A pressure sensor is mounted on the wheel. A panel electrically connected to the pressure sensor is located on the outside of the fish inlet. The middle partition around the drainage hole is inclined towards the drainage hole.

[0015] The third technical problem to be solved by the present invention is to provide a method for harvesting fish from a fish pond that can automatically harvest fish using the above-mentioned automatic weighing fish harvesting vehicle.

[0016] To solve the above problems, the technical solution adopted by the present invention for harvesting fish from fish ponds that can automatically harvest fish using the aforementioned automatic weighing fish harvesting vehicle is as follows:

[0017] The method includes the following steps:

[0018] The first step is to move the automatic weighing and collecting fish cart to the fish outlet.

[0019] Set the weight of the fish to be collected, and move the automatic weighing fish collection cart so that the fish inlet of the automatic weighing fish collection cart is moved below the fish outlet channel.

[0020] The second step is to open the sluice gate and add or drain water from the fishpond according to the water level.

[0021] Open the gate at the fish outlet. When the liquid level in the fish tank exceeds the lower edge of the fish outlet, open the drainage mechanism of the fish tank to release the water out of the fish tank so that the liquid level in the fish tank is level with the lower edge of the fish outlet. When the liquid level in the fish tank is lower than the lower edge of the fish outlet, open the water filling mechanism of the fish tank to add water to the fish tank so that the liquid level in the fish tank is level with the lower edge of the fish outlet.

[0022] The third step is to spray water into the fishpond inside the fish outlet.

[0023] Water is sprayed into the fish outlet through the first nozzle, creating an inward flow of water at the fish outlet.

[0024] Step 4: Collect the fish

[0025] Since swimming against the current is the nature of most fish, fish that are far from the fish outlet swim against the current towards the fish outlet. The fish swimming in front cross the lower edge of the fish outlet and, under the action of their own gravity, go down the downward-sloping lower plate and enter the fish collection box of the fish inlet.

[0026] Step 5: Separating the fish from the water

[0027] After the fish with some water in them enter the tank, they fall onto the middle partition, and the water that came in with the fish falls through the drainage hole into the water collection tank on the bottom of the tank.

[0028] Step 6: Pump the water from the collection tank back into the fish pond.

[0029] Turn on the water pump and position the water pump outlet pipe above the fish pond inside the fish outlet. Pump the water in the collection tank back into the fish pond. As the water falls, it increases the oxygen content of the pond water at the fish outlet, causing fish that are far away from the fish outlet to quickly gather at the fish outlet.

[0030] Step 7: Stop collecting the fish.

[0031] When the fish weight displayed on the setting panel reaches the designed weight, stop spraying water into the fish pond inside the fish outlet and close the gate at the fish outlet.

[0032] Step 8: Weighing

[0033] After the water pump has drained the water from the collection tank, turn off the water pump and read the weight of the fish in the tank through the setting panel.

[0034] Step 9: Move the fish collection truck out.

[0035] Move the fish collection truck out and empty the fish from it.

[0036] As a further improvement to this fish harvesting method

[0037] For a fishpond equipped with a second water spray pipe, the method includes the following steps:

[0038] While spraying water into the fish pond inside the fish outlet in the third step, open the second water spray nozzle to spray water horizontally into the fish outlet, forming a water flow that flows inward at the fish outlet. As the water flow increases, the fine fish bait particles in the filter bag seep out through the filter bag and disperse with the water flow near the fish outlet. Fish far from the fish outlet are attracted by the smell of the fish bait and swim towards the fish outlet.

[0039] For a fishpond with a lower deck that includes an ascending section, a transition section, and a descending section, the method includes the following steps:

[0040] In the second step of opening the gate and adding or releasing water to the fishpond according to the water level, when the water level in the fishpond exceeds the upper surface of the transition section, the drainage mechanism of the fishpond is opened to release the water from the fishpond so that the water level in the fishpond is level with the upper surface of the transition section; when the water level in the fishpond is lower than the upper surface of the transition section, the water filling mechanism of the fishpond is opened to add water to the fishpond so that the water level in the fishpond is level with the upper surface of the transition section.

[0041] For fish ponds with a lifting frame and netting at the bottom, the method includes the following steps:

[0042] Before or during the fourth step of collecting the fish, the lifting frame at the bottom of the fish pond and the net above the lifting frame are slowly raised to further increase the fish density in the fish pond above the net. During the raising of the net, the fish at the top of the fish pond are prevented from going above the water surface.

[0043] Compared with existing technologies, the fish pond with automatic fish harvesting, the fish harvesting vehicle with automatic weighing, and the fish harvesting method provided by this invention have the following advantages:

[0044] Firstly, since the fish pond capable of automatically collecting fish includes a fish pond with a fish outlet on the side, a fish outlet mechanism is provided on the fish outlet. The fish outlet mechanism includes a fish outlet channel formed by an upper plate, a lower plate, and two side plates, and a flange located at the end of the fish outlet channel. The fish outlet mechanism is fixed to the fish pond wall around the fish outlet by the flange, and the outer side of the lower plate is inclined downward. A first water spray pipe with a first water spray nozzle is provided on the side of the upper plate near the fish outlet. The water spray direction of the first water spray nozzle is obliquely downward towards the side of the fish outlet. A gate is provided at the fish outlet. The automatically weighing fish collecting cart includes a box body with a fish inlet at the top and a traveling wheel frame located below the box body. Traveling wheels are provided on the traveling wheel frame, and a fish collection mechanism is provided inside the box body. The tank is equipped with a middle partition with a drainage hole. A water collection trough is located on the bottom plate of the tank, with the surrounding bottom plate inclined towards the trough. A water pump is installed inside the trough, and a water outlet pipe extending out of the tank is installed at the pump's outlet. A pressure sensor is installed on the travel wheels, and a control panel electrically connected to the pressure sensor is located on the outside of the tank. The middle partition around the drainage hole is inclined towards the drainage hole. The desired fish weight is set, and the automatic weighing fish collection cart is moved so that its inlet is below the fish outlet channel. The gate at the fish outlet is opened. When the liquid level in the fish tank exceeds the lower edge of the fish outlet, the drainage mechanism of the fish tank is activated to release the water from the tank. The liquid level in the fish tank is flush with the lower edge of the fish outlet. When the liquid level in the fish tank is lower than the lower edge of the fish outlet, turn on the water filling mechanism to add water to the fish tank until the liquid level in the fish tank is flush with the lower edge of the fish outlet. Water is sprayed into the inside of the fish outlet through the first spray nozzle, forming an inward flow of water at the fish outlet. Since swimming against the current is the natural instinct of most fish, fish far from the fish outlet swim against the current towards the fish outlet. The fish swimming in front cross the lower edge of the fish outlet and, under the action of their own gravity, slide down the downward-sloping lower plate and enter the fish collection box of the fish collection vehicle through the fish inlet. After the fish with some water enter the box, they fall onto the middle partition, and the pool water that entered with the fish falls into the water collection trough on the bottom plate of the box through the drainage hole. Turn on the water pump and position the water pump outlet pipe above the fish tank inside the fish outlet. Water is pumped back from the collection trough into the fish pond. As the water falls, the oxygen content of the water at the fish outlet increases, causing fish far from the outlet to quickly gather there. When the weight of the collected fish displayed on the control panel reaches the designed weight, water spraying into the fish pond inside the outlet is stopped, and the gate at the outlet is closed. After the water pump empties the water from the collection trough, the pump is turned off, and the weight of the fish in the tank is read from the control panel. The fish collection cart is moved out, and the fish in the cart are emptied. During collection, the fish, swimming naturally, jump over the lower edge of the outlet and slide down the inclined lower plate into the tank. This not only avoids harming the harvested fish but also avoids harming or frightening the remaining fish in the pond. The labor intensity of fish collection is low, the efficiency is high, and the cost of fish collection is greatly reduced.

[0045] Secondly, since a second water spray pipe is installed on the side of the lower plate near the fish outlet, and a horizontal second water spray nozzle is installed on the second water spray pipe, while spraying water into the fish pond inside the fish outlet in the third step, the second water spray nozzle is opened to spray water horizontally into the fish outlet, forming an inward flow of water at the fish outlet, which further increases the water flow.

[0046] Thirdly, since a net is installed inside the second water spray pipe, and a filter bag containing fish bait is installed inside the net, the fine fish bait particles in the filter bag seep out through the filter bag and disperse with the water flow near the fish outlet. Fish far from the fish outlet are attracted by the smell of the fish bait and swim towards the fish outlet.

[0047] Fourth, since the lower plate includes an upwardly sloping rising section, an arc transition section, and a downwardly sloping descending section, the second water spray pipe is located below the arc transition section, and the net is located on the rising section, in the second step of opening the gate and adding or releasing water to the fish pond according to the liquid level, when the liquid level in the fish pond exceeds the upper surface of the transition section, the drainage mechanism of the fish pond is opened to release the water from the fish pond, so that the liquid level in the fish pond is level with the upper surface of the transition section; when the liquid level in the fish pond is lower than the upper surface of the transition section, the water filling mechanism of the fish pond is opened to add water to the fish pond, so that the liquid level in the fish pond is level with the upper surface of the transition section. In this way, the fish can more easily cross the transition section and swim to the descending section.

[0048] Fifth, since a lifting frame is installed at the bottom of the fishpond and a net is installed above the lifting frame, before or during the fourth step of fish harvesting, the lifting frame at the bottom of the fishpond and the net above the lifting frame are slowly raised to further increase the density of fish in the fishpond above the net. During the lifting of the net, the fish at the top of the fishpond are prevented from going above the water surface, which is more conducive to the harvesting of fish. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of the fish pond that can automatically collect fish according to the present invention;

[0050] Figure 2 This is a schematic diagram of the fish-eating mechanism;

[0051] Figure 3 This is a structural diagram of the lower plate, which includes the rising section, the transition section, and the falling section.

[0052] Figure 4 for Figure 3 Cross-sectional view;

[0053] Figure 5 This is a structural schematic diagram of the lifting frame;

[0054] Figure 6 A schematic diagram of an automatic weighing fish collection vehicle;

[0055] Figure 7 for Figure 6 AA cross-section view. Detailed Implementation

[0056] The structure and operating principle of the fish pond with automatic fish harvesting, the structure and operating principle of the automatic weighing fish harvesting vehicle, and the fish harvesting method of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] For ease of description, the fishpond wall with the fish outlet is used as a reference point, with the inner side of the fishpond wall being the inner side and the outer side being the outer side.

[0058] like Figure 1 and Figure 2 The diagram shows the structure of the fishpond with automatic fish collection according to the present invention. The fishpond includes a fishpond 2 with a fish outlet 1 on one side. A fish outlet mechanism 3 is provided on the fish outlet 1. The fish outlet mechanism 3 includes a fish outlet channel 7 formed by an upper plate 4, a lower plate 5, and two side plates 6, and a flange 8 located at the end of the fish outlet channel 7. The fish outlet mechanism 3 is fixed to the fishpond wall around the fish outlet via the flange 8. Of course, the fish outlet mechanism 3 can also be fixed to the fishpond in other ways. The outer side of the lower plate 5 slopes downwards; a first water spray pipe 10 with a first water spray nozzle 9 is provided on the side of the upper plate 4 near the fish outlet 1, and the water spray direction of the first water spray nozzle 9 is diagonally downwards towards the fish outlet 1; a gate 11 is provided at the fish outlet 1.

[0059] like Figure 6 and Figure 7 As shown, the automatic weighing fish collecting cart includes a box 13 with a fish inlet 12 at the top and a wheel frame 14 located below the box 13. Wheels 15 are mounted on the wheel frame 14. A middle partition 16 is installed inside the box 13, with a drain hole 17 on the partition 16. A water collection trough 19 is installed on the bottom plate 18 of the box 13, with the bottom plate 18 around the water collection trough 19 inclined towards it. A water pump 20 is installed inside the water collection trough 19, with a water outlet pipe 21 extending out of the box from the outlet of the water pump 20. A pressure sensor 22 is mounted on the wheel 15. A mounting panel 23 electrically connected to the pressure sensor 22 is installed on the outside of the box 13. The middle partition 16 around the drain hole 17 is inclined towards it. The pressure sensor 22 can be a standalone pressure sensor or a pressure sensor bearing.

[0060] Set the weight of the fish to be collected, move the automatic weighing fish collection cart so that the fish inlet 12 of the automatic weighing fish collection cart is below the fish outlet channel 7; open the gate 11 at the fish outlet 1; when the liquid level in the fish tank 2 exceeds the lower edge of the fish outlet 1, open the drainage mechanism of the fish tank to release the water in the fish tank so that the liquid level in the fish tank is level with the lower edge of the fish outlet 1; when the liquid level in the fish tank 2 is lower than the lower edge of the fish outlet 1, open the water filling mechanism of the fish tank to add water to the fish tank so that the liquid level in the fish tank is level with the lower edge of the fish outlet. Water is sprayed into the inside of the fish outlet 1 through the first spray nozzle 9, creating an inward-flowing water flow at the fish outlet 1. This water flow increases the oxygen content in the water. Since swimming against the current is the natural instinct of most fish, fish that are far from the fish outlet swim against the current towards the fish outlet. The fish swimming in front cross the lower edge of the fish outlet 1 and, under the action of their own gravity, move down the downward-sloping lower plate 5 and enter the fish collection box 13 through the fish inlet 12. After entering the box 13 with some water, the fish land on the middle partition 16, where they are placed together with the fish. The incoming pool water falls through the drain hole 17 into the water collection trough 19 on the bottom plate 18 of the tank. The water pump 20 is turned on, and its outlet pipe 21 is positioned above the fish pond 2 inside the fish outlet 1. This pumps water from the collection trough 19 back into the fish pond. As the water falls, the oxygen content of the water at the fish outlet increases, causing fish far from the outlet to quickly gather there. Furthermore, the water level in the fish pond 2 does not drop when the water is pumped back from the collection trough 1; it remains level with the lower edge of the fish outlet 1, facilitating the fish's escape from the outlet. When the weight of the collected fish displayed on the setting panel 23 reaches the designed weight, the water spraying into the fish pond inside the fish outlet 1 is stopped, and the gate 11 at the fish outlet 1 is closed. After the water pump dries the water in the collection trough 19, the water pump 20 is turned off, and the weight of the fish in the tank is read from the setting panel. The fish collection cart is then moved out, and the fish are emptied from it. When collecting fish, the fish, in a natural swimming state, jump over the lower edge of the fish outlet 1 and slide into the box 13 along the inclined lower plate 5. This will not only avoid harming the fish being collected, but also will not harm or frighten the remaining fish in the fish pond. The labor intensity of collecting fish is low, the efficiency is high, and the cost of collecting fish is greatly reduced.

[0061] like Figure 3 and Figure 4 As shown, a second water spray pipe 24 is provided on the side of the lower plate 5 near the fish outlet 1, and a horizontal second water spray nozzle 25 is provided on the second water spray pipe 24. While spraying water into the fish pond inside the fish outlet in the third step, the second water spray nozzle 25 is opened to spray water horizontally into the fish outlet, forming a water flow that flows inward at the fish outlet, which further increases the water flow.

[0062] A net cover 26 is installed inside the second water spray pipe 24. A filter bag 27 containing fish bait is installed inside the net cover 26. The small fish bait particles in the filter bag 27 seep out through the filter bag and disperse with the water flow near the fish outlet. Fish far from the fish outlet are attracted by the smell of the fish bait and swim towards the fish outlet.

[0063] The lower plate 5 includes an upwardly sloping rising section 51, an arc transition section 52, and a downwardly sloping descending section 53. The second water spray pipe 24 is located below the arc transition section 52, and the net cover 26 is located on the rising section 51. In the steps of opening the gate and adding or releasing water into the fish pond according to the liquid level, when the liquid level in the fish pond exceeds the upper surface of the transition section 52, the drainage mechanism of the fish pond is opened to release the water from the fish pond, so that the liquid level in the fish pond is level with the upper surface of the transition section 52; when the liquid level in the fish pond is lower than the upper surface of the transition section 52, the water filling mechanism of the fish pond is opened to add water to the fish pond, so that the liquid level in the fish pond is level with the upper surface of the transition section 52. In this way, it is easier for the fish to cross the transition section and swim to the descending section 53.

[0064] like Figure 5 As shown, a lifting frame 28 is installed at the bottom of the fish pond 2, and a net 29 is installed above the lifting frame 28. Before or during the fourth step of collecting fish, the lifting frame 28 at the bottom of the fish pond and the net 29 above the lifting frame are slowly raised to further increase the density of fish in the fish pond above the net. During the raising of the net, the fish at the top of the fish pond are prevented from going above the water surface, which is more conducive to the harvesting of fish.

[0065] A method for harvesting fish from a fishpond that can automatically harvest fish using an automated weighing fish harvesting vehicle, the method comprising the following steps:

[0066] The first step is to move the automatic weighing and collecting fish cart to the fish outlet.

[0067] Set the weight of the fish to be collected, and move the automatic weighing fish collection cart so that the fish inlet 12 of the automatic weighing fish collection cart is moved below the fish outlet channel 7.

[0068] The second step is to open the sluice gate and add or drain water from the fishpond according to the water level.

[0069] Open the gate 11 at the fish outlet 1. When the liquid level in the fish tank 2 exceeds the lower edge of the fish outlet 1, open the drainage mechanism of the fish tank to release the water from the fish tank, so that the liquid level in the fish tank is level with the lower edge of the fish outlet 1. When the liquid level in the fish tank 2 is lower than the lower edge of the fish outlet 1, open the water filling mechanism of the fish tank to add water to the fish tank, so that the liquid level in the fish tank is level with the lower edge of the fish outlet.

[0070] The third step is to spray water into the fishpond inside the fish outlet.

[0071] Water is sprayed into the inside of the fish outlet 1 through the first water nozzle 9, forming an inward water flow at the fish outlet 1.

[0072] Step 4: Collect the fish

[0073] The flow of water increases the oxygen content in the water. Since swimming against the current is the nature of most fish, fish that are far from the fish outlet swim against the current towards the fish outlet. The fish swimming in front cross the lower edge of the fish outlet 1 and, under the action of their own gravity, go down the downward-sloping lower plate 5 and enter the box 13 of the fish collection vehicle through the fish inlet 12.

[0074] Step 5: Separating the fish from the water

[0075] After the fish with some water enters the tank 13, the fish lands on the middle partition 16, and the water that came in with the fish falls into the water collection trough 19 of the bottom plate 18 of the tank through the drain hole 17.

[0076] Step 6: Pump the water from the collection tank back into the fish pond.

[0077] Turn on the water pump 20 and position the outlet pipe 21 of the water pump 20 above the fish pond 2 inside the fish outlet 1. The water in the water collection tank 19 is pumped back into the fish pond. As the water falls, the oxygen content of the pond water at the fish outlet increases, causing fish far from the fish outlet to quickly gather at the fish outlet. Moreover, when the water in the water collection tank 19 is pumped back into the fish pond, the liquid level in the fish pond 2 will not drop and will always be level with the lower edge of the fish outlet 1, making it easier for the fish to swim out of the fish outlet.

[0078] Step 7: Stop collecting the fish.

[0079] When the fish weight displayed on the setting panel 23 reaches the design weight, stop spraying water into the fish pond inside the fish outlet 1 and close the gate 11 at the fish outlet 1.

[0080] Step 8: Weighing

[0081] After the water pump drains the water from the collection tank 19, turn off the water pump 20 and read the weight of the fish in the tank through the setting panel.

[0082] Step 9: Move the fish collection truck out.

[0083] Move the fish collection truck out and empty the fish from it.

[0084] For a fishpond equipped with a second water spray pipe, the method includes the following steps:

[0085] While spraying water into the fishpond inside the fish outlet in the third step, open the second water spray nozzle to spray water horizontally into the fish outlet, forming a water flow that flows inward at the fish outlet. As the water flow increases, the fine fish bait particles in the filter bag seep out through the filter bag and disperse with the water flow near the fish outlet. Fish far from the fish outlet are attracted by the scent of the fish bait and swim towards the fish outlet.

[0086] For a fishpond with a lower deck that includes an ascending section, a transition section, and a descending section, the method includes the following steps:

[0087] In the second step of opening the gate and adding or releasing water to the fishpond according to the water level, when the water level in the fishpond exceeds the upper surface of the transition section, the drainage mechanism of the fishpond is opened to release the water from the fishpond, so that the water level in the fishpond is level with the upper surface of the transition section; when the water level in the fishpond is lower than the upper surface of the transition section, the water filling mechanism of the fishpond is opened to add water to the fishpond, so that the water level in the fishpond is level with the upper surface of the transition section.

[0088] For fish ponds with a lifting frame and netting at the bottom, the method includes the following steps:

[0089] Before or during the fourth step of collecting the fish, the lifting frame at the bottom of the fish pond and the net above the lifting frame are slowly raised to further increase the fish density in the fish pond above the net. During the raising of the net, the fish at the top of the fish pond are prevented from going above the water surface.

[0090] The scope of protection of this invention is not limited to the above embodiments. Any fish pond or fish harvesting vehicle with the same or similar structure as the fish pond or fish harvesting vehicle with automatic fish harvesting of this invention, or fish harvesting method that is the same or similar to this method, falls within the scope of protection of this invention.

Claims

1. A method for harvesting fish from an automatically harvesting fish pond using an automatic weighing fish harvesting vehicle, wherein the automatically harvesting fish pond includes a fish pond with a fish outlet on the side, a fish outlet mechanism is provided on the fish outlet, the fish outlet mechanism includes a fish outlet channel formed by an upper plate, a lower plate and two side plates, and a flange located at the end of the fish outlet channel, the fish outlet mechanism is fixed to the fish pond wall around the fish outlet by the flange, the outer side of the lower plate is inclined downward; a first water spray pipe with a first water spray nozzle is provided on the upper plate near the fish outlet, the water spray direction of the first water spray nozzle is obliquely downward towards the fish outlet; a fish outlet is provided with... The automatic weighing fish collecting vehicle includes a box with a fish inlet at the top and a wheel frame located below the box. A wheel is mounted on the wheel frame. A middle partition is installed inside the box, and a drain hole is provided on the middle partition. A water collection trough is installed on the bottom plate of the box, with the bottom plate around the water collection trough inclined towards it. A water pump is installed inside the water collection trough, and a water outlet pipe extending out of the box is installed at the outlet of the water pump. A pressure sensor is installed on the wheel. A panel electrically connected to the pressure sensor is installed on the outside of the box. The middle partition around the drain hole is inclined towards the drain hole. Its features are: The method includes the following steps: The first step is to move the automatic weighing and collecting fish cart to the fish outlet. Set the weight of the fish to be collected, and move the automatic weighing fish collection cart so that the fish inlet of the automatic weighing fish collection cart is moved below the fish outlet channel. The second step is to open the sluice gate and add or drain water from the fishpond according to the water level. Open the gate at the fish outlet. When the liquid level in the fish tank exceeds the lower edge of the fish outlet, open the drainage mechanism of the fish tank to release the water out of the fish tank so that the liquid level in the fish tank is level with the lower edge of the fish outlet. When the liquid level in the fish tank is lower than the lower edge of the fish outlet, open the water filling mechanism of the fish tank to add water to the fish tank so that the liquid level in the fish tank is level with the lower edge of the fish outlet. The third step is to spray water into the fishpond inside the fish outlet. Water is sprayed into the fish outlet through the first nozzle, creating an inward flow of water at the fish outlet. Step 4: Collect the fish Since swimming against the current is the nature of most fish, fish that are far from the fish outlet swim against the current towards the fish outlet. The fish swimming in front cross the lower edge of the fish outlet and, under the action of their own gravity, go down the downward-sloping lower plate and enter the fish collection box of the fish inlet. Step 5: Separating the fish from the water After the fish with some water in them enter the tank, they fall onto the middle partition, and the water that came in with the fish falls through the drainage hole into the water collection tank on the bottom of the tank. Step 6: Pump the water from the collection tank back into the fish pond. Turn on the water pump and position the water pump outlet pipe above the fish pond inside the fish outlet. Pump the water in the collection tank back into the fish pond. As the water falls, it increases the oxygen content of the pond water at the fish outlet, causing fish that are far away from the fish outlet to quickly gather at the fish outlet. Step 7: Stop collecting the fish. When the fish weight displayed on the setting panel reaches the designed weight, stop spraying water into the fish pond inside the fish outlet and close the gate at the fish outlet. Step 8: Weighing After the water pump has drained the water from the collection tank, turn off the water pump and read the weight of the fish in the tank through the setting panel. Step 9: Move the fish collection truck out. Move the fish collection truck out and empty the fish from it.

2. The method for harvesting fish according to claim 1, characterized in that: A second water spray pipe is provided on the side of the lower plate near the fish outlet, and a horizontal second water spray nozzle is provided on the second water spray pipe.

3. The method for harvesting fish according to claim 2, characterized in that: A net is installed inside the second water spray pipe, and a filter bag containing fish bait is installed inside the net.

4. The method for harvesting fish according to claim 3, characterized in that: The method includes the following steps: While spraying water into the fishpond inside the fish outlet in the third step, open the second water spray nozzle to spray water horizontally into the fish outlet, forming a water flow that flows inward at the fish outlet. As the water flow increases, the fine fish bait particles in the filter bag seep out through the filter bag and disperse with the water flow near the fish outlet. Fish far from the fish outlet are attracted by the scent of the fish bait and swim towards the fish outlet.

5. The method for harvesting fish according to claim 3, characterized in that: The lower plate includes an upwardly inclined rising section, an arc transition section, and a downwardly inclined descending section. The second water spray pipe is located below the arc transition section, and the mesh cover is located on the rising section.

6. The method for harvesting fish according to claim 5, characterized in that: The method includes the following steps: In the second step of opening the gate and adding or releasing water to the fishpond according to the water level, when the water level in the fishpond exceeds the upper surface of the transition section, the drainage mechanism of the fishpond is opened to release the water from the fishpond, so that the water level in the fishpond is level with the upper surface of the transition section; when the water level in the fishpond is lower than the upper surface of the transition section, the water filling mechanism of the fishpond is opened to add water to the fishpond, so that the water level in the fishpond is level with the upper surface of the transition section.

7. The method for harvesting fish according to claim 1, characterized in that: A lifting frame is installed at the bottom of the fish pond, and a net is installed above the lifting frame.

8. The method for harvesting fish according to claim 7, characterized in that: The method includes the following steps: Before or during the fourth step of collecting the fish, the lifting frame at the bottom of the fish pond and the net above the lifting frame are slowly raised to further increase the fish density in the fish pond above the net. During the raising of the net, the fish at the top of the fish pond are prevented from going above the water surface.

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