Automatic feeding device for factory circulating water culture and use method

Abstract

The present application relates to the field of aquaculture, especially to a factory circulating water aquaculture automatic feeding device and a use method thereof. The factory circulating water aquaculture automatic feeding device comprises a first steel rail, a second steel rail is installed on the first steel rail through a cart, and a trolley is arranged on the second steel rail. The factory circulating water aquaculture automatic feeding device further comprises a pulling unit, a positioning frame fixed on the trolley, and a pulling piece installed on the positioning frame. A storage box located below the trolley is hung on the pulling piece, and a discharge pipe is arranged at the lower end of the storage box. The factory circulating water aquaculture automatic feeding device further comprises a connecting unit, a seat fixed on the positioning frame, and an insert fixed on the storage box. The insert is inserted into the seat. The factory circulating water aquaculture automatic feeding device and the use method thereof can automatically feed the feed, the feeding speed is fast, the labor consumption is low, the quantitative feeding can be performed according to the actual situation of each breeding pool, the waste of feed is avoided, and the water quality is not affected.

Description

Technical Field

[0001] This invention relates to the field of aquaculture, and more particularly to an automatic feeding device and method for use in factory-scale recirculating aquaculture. Background Technology

[0002] Factory-style recirculating aquaculture is a highly efficient aquaculture method that achieves high-density farming by setting up breeding ponds or tanks in a limited indoor space and combining them with advanced water treatment technology.

[0003] This farming model requires dividing an entire breeding pond into multiple separate modules. Therefore, when feeding, staff need to feed each breeding pond in turn, which is time-consuming and labor-intensive. Moreover, manual feeding is not precise enough in controlling the amount of feed, which can easily lead to feed waste and water pollution.

[0004] Therefore, it is necessary to provide a new automated feeding device and method for industrialized recirculating aquaculture to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an automatic feeding device and a method for using a factory-scale recirculating aquaculture system.

[0006] The automatic feeding device for factory-scale recirculating aquaculture provided by this invention includes a first steel rail, a second steel rail mounted on the first steel rail via a trolley, a trolley mounted on the second steel rail, and the trolley's movement trajectory being planar motion. It also includes:

[0007] The traction unit includes a positioning frame fixed on the trolley and a traction component installed on the positioning frame. A storage box located below the trolley is suspended on the traction component. The movement trajectory of the storage box is spatial motion. The lower end of the storage box has a discharge pipe.

[0008] The connecting unit includes a seat fixed to the positioning frame and a plug fixed to the storage box. The plug is inserted into the seat to fix the storage box to the lower end of the positioning frame.

[0009] Preferably, the positioning frame is U-shaped and fixed to the upper end of the trolley. Extension plates are vertically fixed on both sides of the positioning frame. There are also reinforcing ribs between the extension plates and the positioning frame. The extension plates have a vertical through-hole.

[0010] Preferably, the tensioning member includes:

[0011] The motor is fixed on the positioning frame;

[0012] The rollers are two parallel rollers that rotate inside the positioning frame. One end of one of the rollers is connected to the output end of the motor. Both rollers are fixed with sprockets, and a chain is provided between the two sprockets.

[0013] The baffles are concentrically fixed on the roller shaft. Each roller shaft has three baffles, and the roller shaft is divided into two equally sized winding areas by the three baffles.

[0014] A steel cable is wound in the winding area of ​​a roller, and a hook is fixed at the other end of the steel cable. Two steel cables are provided on each of the rollers.

[0015] Preferably, the storage box has an opening at the top and a hanging ring that engages with a hook at the top end. The bottom of the storage box has an inclined surface. The discharge pipe is located at the lowest point of the bottom of the storage box, and a valve pipe is fixed at the lower end of the discharge pipe.

[0016] Preferably, a support member is fixed to the lower end of the valve pipe, the support member comprising:

[0017] A positioning ring is fixed to the lower end of the valve pipe, and several circumferentially distributed and arc-shaped support plates are fixed to the lower end of the positioning ring.

[0018] A bottom ring is fixed to the other end of several support plates and is concentrically arranged with the positioning ring. The diameter of the bottom ring is larger than the diameter of the positioning ring, and a pad is fixed to the lower end of the bottom ring.

[0019] Preferably, an infrared generator is also fixed on one side of the storage box, and the irradiation direction of the infrared generator is obliquely pointed directly below the valve tube.

[0020] Preferably, the seat includes:

[0021] A first base plate is fixed to the upper end of an extension plate. The first base plate has a second through-hole, which is the same size as and completely corresponds to the first through-hole.

[0022] The housing is fixed to the upper end of the first base plate. The first through-hole connects to the internal cavity of the housing. The inner sidewall of the housing also has two symmetrically arranged protrusions, and the distance between the two protrusions is less than the length of the second through-hole.

[0023] Preferably, the plugin includes:

[0024] The second base plate is fixed to the upper end of the storage box. A Y-shaped support frame is fixed to the upper end of the second base plate. A stop is located at the center of the upper end of the support frame.

[0025] There are two support legs, which are rotatably connected to the support frame. A first spring is also provided between the support legs and the support frame. The elastic force of the first spring makes the support frame and the two support legs arrow-shaped. The support legs can be completely inserted into the housing through the second through hole. The lower end abuts against the first bottom plate and the upper end abuts against the stop. The lower end of the support legs also has a V-shaped latch.

[0026] The second spring is vertically mounted on the second base plate. The upper end of the second spring is fixed with a locking block that slides on the side of the support frame. The locking block can be engaged inside the locking slot.

[0027] Preferably, the maximum distance between the two support feet is greater than the length of the second through opening. When the support feet contact the inner wall of the second through opening, they rotate against the elastic force of the first spring, and the rotation angle does not meet the engagement of the latch and the latch block.

[0028] When the support foot contacts the protrusion, it rotates against the elastic force of the first spring. The rotation angle satisfies the engagement of the latch and the latch block. In the engaged state, the maximum distance between the two support feet is less than the length of the second through-hole.

[0029] The method of using an automated feeding device for factory-scale recirculating aquaculture includes:

[0030] S1. The second rail is moved by the trolley, and then the storage box is moved to the corresponding open space by the trolley. Then the roller is rotated by the motor to release the steel cable and lower the storage box until the support is in contact with the ground. Then feed can be added into the storage box.

[0031] S2. After the feed is added, the motor drives the roller to rotate in the opposite direction to wind up the steel cable until the support foot in the plug enters the housing through the second through hole. Under the elastic force of the first spring, the lower end of the support foot opens and sits on the upper end of the first base plate, thereby fixing the storage box.

[0032] S3. The storage box is moved by the large and small carts. The infrared generator is used to accurately position the storage box so that it is moved above each breeding pond or breeding bucket. Then the valve pipe is opened to let the feed fall, realizing automatic and precise feeding.

[0033] S4. After the feed is consumed, the traction component moves the storage box upward a certain distance, so that the support foot contacts the protrusion. Under the action of the protrusion, the support foot overcomes the elastic force of the first spring and rotates, so that the locking block is embedded in the slot. In this state, the maximum distance between the two support feet is less than the length of the second through hole, so the plug can be disengaged from the seat, so that the storage box can be moved down and refilled.

[0034] Compared with related technologies, the automatic feeding device and method for factory-scale recirculating aquaculture provided by this invention have the following beneficial effects:

[0035] The device can automatically feed the animals quickly with low labor costs. It can also feed the animals quantitatively according to the actual conditions of each aquaculture pond, avoiding feed waste and not affecting water quality. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a preferred embodiment of the automatic feeding device and method for factory-scale recirculating aquaculture provided by the present invention.

[0037] Figure 2 This is a schematic diagram of the storage box in its falling state as shown in the present invention;

[0038] Figure 3 This is a schematic diagram of the structure of the tensioning unit shown in this invention;

[0039] Figure 4 This is a schematic diagram of the positioning frame shown in the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the tensioning member shown in this invention;

[0041] Figure 6 This is a schematic diagram of the structure of the storage box shown in this invention;

[0042] Figure 7 This is a schematic diagram of the structure of the support member shown in this invention;

[0043] Figure 8 This is a schematic diagram of the structure of the seat member shown in this invention;

[0044] Figure 9 This is a schematic diagram of the structure of the plug-in shown in this invention;

[0045] Figure 10 This is a structural schematic diagram of the connection state between the seat and the plug-in as shown in the present invention;

[0046] Figure 11 This is a schematic diagram of the plug-in disconnected state as shown in the present invention.

[0047] Numbered in the diagram: 1. First rail; 2. Second rail; 3. Traction unit; 31. Positioning frame; 32. Extension plate; 33. First through-hole; 34. Reinforcing rib; 35. Motor; 36. Roller; 37. Sprocket; 38. Chain; 39. Baffle; 310. Steel cable; 311. Hook; 4. Storage box; 5. Hanging ring; 6. Discharge pipe; 7. Valve pipe; 8. Support component; 81. Positioning ring; 82. Support plate; 83. Bottom ring; 84. Pad; 9. Infrared generator; 10. Connecting unit; 101. First base plate; 102. Second through-hole; 103. Housing; 104. Protrusion; 105. Second base plate; 106. Support frame; 107. Support foot; 108. First spring; 109. Bayonet; 1010. Second spring; 1011. Locking block. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0049] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0050] Please see Figures 1 to 9 The automatic feeding device and method for factory-scale recirculating aquaculture provided in this embodiment of the invention include a track structure composed of a first steel rail 1 and a second steel rail 2. A large trolley is set on the first steel rail 1 to drive the second steel rail 2 to move, while a small trolley is set on the second steel rail 2.

[0051] It also includes a tensioning unit 3 and a connecting unit 10;

[0052] The traction unit 3 includes a positioning frame 31 fixed on the trolley and a traction component installed on the positioning frame 31. Therefore, the trolley can drive the traction unit 3 to move along the X and Y directions. The traction component has a storage box 4 suspended on it. Therefore, the trolley and the traction unit 3 can drive the storage box 4 to move along the X, Y and Z directions.

[0053] The storage box 4 has an opening at the top and a hanging ring 5 connected to the connecting unit 10. The bottom is a slope, and a discharge pipe 6 is set at the lowest point of the slope. A valve pipe 7 for controlling opening and closing is installed at the lower end of the discharge pipe 6. An infrared generator 9 is also fixed on one side of the storage box 4. The irradiation direction of the infrared generator 9 is obliquely pointed directly below the valve pipe 7.

[0054] It should be noted that the first rail 1 and the second rail 2 form an H-shaped track structure. Therefore, the trolley installed on the second rail 2 can drive the traction unit 3 to move in a planar manner. The feed storage box 4, which contains feed, uses the traction unit 3 as its installation base. At the same time, the traction unit 3 can be used to drive the feed storage box 4 to move in a vertical direction. Therefore, by using the trolley and the traction unit 3 to drive the spatial movement of the feed storage box 4, feed can be fed to each breeding pond at a fixed point, which has higher automation performance and higher efficiency. At the same time, an infrared generator 9 is installed on the feed storage box 4. The infrared generator 9 can make the positioning of the feed storage box 4 more accurate and improve the feeding quality.

[0055] Valve 7 is preferably an electrically controlled valve, which is automatically controlled by the system. After the feed storage box 4 corresponds to the breeding pond, valve 7 is opened, and the feed inside the feed storage box 4 falls. When the feeding amount reaches the specified standard, valve 7 is closed. This allows for quantitative feeding based on the size of the animals and the breeding density, avoiding local saturation and thus preventing water pollution.

[0056] In an embodiment of the present invention, please refer to Figure 3 , Figure 4 and Figure 5 The positioning frame 31 is in the shape of a square and is fixed to the upper end of the trolley. The positioning frame 31 has extension plates 32 vertically fixed on both sides. There are also reinforcing ribs 34 between the extension plates 32 and the positioning frame 31. The extension plates 32 have a vertical through first through hole 33.

[0057] The tensioning components include:

[0058] Motor 35 is fixed on positioning bracket 31;

[0059] The roller shafts 36 are two parallel ones that rotate inside the positioning frame 31. One end of one roller shaft 36 is connected to the output end of the motor 35. Both roller shafts 36 are fixed with sprockets 37, and a chain 38 is provided between the two sprockets 37.

[0060] The baffles 39 are concentrically fixed on the rollers 36. Each roller 36 has three baffles 39, and the rollers 36 are divided into two equally sized winding areas by the three baffles 39.

[0061] A steel cable 310 is wound in the winding area of ​​a roller 36. The other end of the steel cable 310 is fixed with a hook 311. Two steel cables 310 are provided on each roller 36.

[0062] It should be noted that the traction unit 3 is based on the positioning frame 31, which is mounted on the trolley, thereby realizing the planar movement of the entire traction unit 3;

[0063] In the traction component, the motor 35 is preferably a geared motor, which drives the roller shaft 36 to rotate to realize the winding and release of the steel cable 310. The hook 311 at the other end of the steel cable 310 is fastened to the hanging ring 5 at the upper end of the storage box 4, thereby enabling the storage box 4 to move in the vertical direction and facilitating the disassembly and assembly of the storage box 4.

[0064] There are four steel cables 310 arranged in a square shape, which can ensure the stability of the storage box 4 and make the process of rising and falling more stable.

[0065] In an embodiment of the present invention, please refer to Figure 6 and Figure 7 A support member 8 is fixed to the lower end of the valve pipe 7. The support member 8 includes:

[0066] The positioning ring 81 is fixed to the lower end of the valve pipe 7, and several circumferentially distributed and arc-shaped support plates 82 are fixed to the lower end of the positioning ring 81.

[0067] The bottom ring 83 is fixed to the other end of several support plates 82 and is concentrically set with the positioning ring 81. The diameter of the bottom ring 83 is larger than the diameter of the positioning ring 81, and a pad 84 is fixed to the lower end of the bottom ring 83.

[0068] It should be noted that when adding feed into the storage box 4, the storage box 4 needs to be placed on the ground. In order to avoid wear on the valve pipe 7, a support 8 is set at the lower end of the valve pipe 7. The support 8 is used to support the storage box 4, which can not only ensure the stability of the storage box 4, but also protect the valve pipe 7.

[0069] The positioning ring 81 in the support member 8 is fixed to the lower end of the valve pipe 7 to ensure the stability of the entire structure. The lower end is fixed by multiple support plates 82 distributed in a trumpet shape. Therefore, the bottom ring 83 at the other end of the support plate 82 has a larger diameter, a larger contact area when in contact with the ground, higher stability, and will not affect the feeding.

[0070] In an embodiment of the present invention, please refer to Figure 8 and Figure 9 The seat includes:

[0071] The first base plate 101 is fixed to the upper end of the extension plate 32. The first base plate 101 has a second through opening 102, which is the same size as the first through opening 33 and corresponds completely.

[0072] The housing 103 is fixed to the upper end of the first base plate 101. The first through-hole 33 connects to the internal cavity of the housing 103. The inner sidewall of the housing 103 also has two symmetrically arranged protrusions 104, and the distance between the two protrusions 104 is less than the length of the second through-hole 102.

[0073] The plugins include:

[0074] The second base plate 105 is fixed to the upper end of the storage box 4. A Y-shaped support frame 106 is fixed to the upper end of the second base plate 105. A stop is located at the center of the upper end of the support frame 106.

[0075] There are two support feet 107, which are rotatably connected to the support frame 106. A first spring 108 is also provided between the support feet 107 and the support frame 106. The elastic force of the first spring 108 makes the support frame 106 and the two support feet 107 form an arrow shape. The support feet 107 can be completely inserted into the housing 103 through the second through hole 102. The lower end abuts against the first bottom plate 101 and the upper end abuts against the stop. The lower end of the support feet 107 also has a V-shaped latch 109.

[0076] The second spring 1010 is vertically mounted on the second base plate 105. The upper end of the second spring 1010 is fixed with a locking block 1011 that slides on the side of the support frame 106. The locking block 1011 can be locked into the slot 109.

[0077] Among them, the maximum distance between the two support feet 107 is greater than the length of the second through opening 102. When the support foot 107 contacts the inner wall of the second through opening 102, it rotates against the elastic force of the first spring 108. The rotation angle does not satisfy the engagement of the latch 109 and the latch block 1011.

[0078] When the support foot 107 contacts the protrusion 104, it rotates against the elastic force of the first spring 108. The rotation angle satisfies the engagement of the latch 109 and the latch block 1011. In the engaged state, the maximum distance between the two support feet 107 is less than the length of the second through hole 102.

[0079] It should be noted that the connecting unit 10 is used to enhance the stability of the storage box 4. When the seat and plug are connected, the storage box 4 can be further positioned, so there will be no swaying during the horizontal movement of the storage box 4.

[0080] like Figure 10 As shown, this is the connection state between the seat and the plug. Under normal conditions, due to the elastic force of the first spring 108, the two support legs 107 are inverted V-shapes. The maximum distance at the top is much smaller than the length of the second through-hole 102. Therefore, the top can pass through the first base plate 101 and enter the housing 103. The support leg 107 will abut against point a in the figure, causing the support leg 107 to rotate against the elastic force of the first spring 108, so that the entire support leg 107 enters the housing 103. However, the locking block 1011 will not lock into the locking slot 109. After the support leg 107 is completely inside the housing 103, the elastic force of the first spring 108 causes the support leg 107 to open, thus achieving the supporting state shown in the figure and realizing the positioning of the storage box 4.

[0081] like Figure 11 As shown, when the seat and plug need to be disengaged, the storage box 4 needs to be lifted again by the steel cable 310, so that the support foot 107 makes point contact with the automatic feeding device and usage method of the factory-style recirculating aquaculture in the protrusion 104. At this time, the support foot 107 rotates again against the elastic force of the first spring 108. Since the distance between the protrusions 104 is less than the length of the second through hole 102, the rotation amplitude of the support foot 107 will be greater, so that the locking block 1011 and the locking slot 109 are engaged, thereby positioning the support foot 107. At this time, the maximum distance between the two support feet 107 is less than the length of the second through hole 102, so the plug can be disengaged from the inside of the housing 103. The support foot 107 can be manually reset afterwards.

[0082] The method of using the automated feeding device for factory-scale recirculating aquaculture provided in this embodiment of the invention includes:

[0083] S1. The second rail 2 is moved by the trolley, and then the storage box 4 is moved to the corresponding open space by the trolley. Then the roller 36 is rotated by the motor 35 to release the steel cable 310, so that the storage box 4 is lowered until the support 8 contacts the ground. Then feed can be added into the storage box 4.

[0084] S2. After the feed is added, the motor 35 drives the roller 36 to rotate in the opposite direction to wind up the steel cable 310 until the support foot 107 in the plug-in enters the housing 103 through the second through hole 102. Under the elastic force of the first spring 108, the lower end of the support foot 107 opens and sits on the upper end of the first base plate 101, thereby fixing the storage box 4.

[0085] S3. The large and small trolleys drive the storage box 4 to move, and the infrared generator 9 accurately positions the storage box 4 so that the storage box 4 moves to the top of each breeding pond or breeding bucket. Then the valve pipe 7 is opened to let the feed fall, realizing automatic and precise feeding.

[0086] S4. After the feed is consumed, the pulling component moves the storage box 4 up a certain distance, so that the support foot 107 contacts the protrusion 104. Under the action of the protrusion 104, the support foot 107 overcomes the elastic force of the first spring 108 and rotates, so that the locking block 1011 is embedded in the slot 109. In this state, the maximum distance between the two support feet 107 is less than the length of the second through hole 102, so the plug can be disengaged from the seat, so that the storage box 4 moves down and is refilled.

[0087] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic feeding device for factory-scale recirculating aquaculture, comprising a first steel rail (1), a second steel rail (2) mounted on the first steel rail (1) via a trolley, and a trolley mounted on the second steel rail (2), wherein the trolley's movement trajectory is planar motion, characterized in that, Also includes: The traction unit (3) includes a positioning frame (31) fixed on the trolley and a traction component installed on the positioning frame (31). The positioning frame (31) is U-shaped and fixed to the upper end of the trolley. The positioning frame (31) has extension plates (32) vertically fixed on both sides. There are also reinforcing ribs (34) between the extension plates (32) and the positioning frame (31). The extension plates (32) have a vertical through first through hole (33). A storage box (4) located below the trolley is suspended on the traction component. The movement trajectory of the storage box (4) is spatial movement. The lower end of the storage box (4) has a discharge pipe (6). The connecting unit (10) includes a seat fixed on the positioning frame (31) and a plug fixed on the storage box (4). The plug is inserted into the seat to fix the storage box (4) to the lower end of the positioning frame (31). The seat includes: The first base plate (101) is fixed to the upper end of the extension plate (32). The first base plate (101) has a second through hole (102). The second through hole (102) is the same size as the first through hole (33) and corresponds to it completely. The housing (103) is fixed to the upper end of the first base plate (101). The first through-hole (33) connects to the internal cavity of the housing (103). The inner sidewall of the housing (103) also has two symmetrically arranged protrusions (104), and the distance between the two protrusions (104) is less than the length of the second through-hole (102). The plugin includes: The second base plate (105) is fixed to the upper end of the storage box (4). A Y-shaped support frame (106) is fixed to the upper end of the second base plate (105). The support frame (106) has a stop at the center of the upper end. There are two support feet (107), which are rotatably connected to the support frame (106). A first spring (108) is also provided between the support feet (107) and the support frame (106). The elastic force of the first spring (108) makes the support frame (106) and the two support feet (107) arrow-shaped. The support feet (107) can be completely inserted into the housing (103) through the second through hole (102). The lower end abuts against the first bottom plate (101) and the upper end abuts against the stop. The lower end of the support feet (107) also has a V-shaped bayonet (109). The second spring (1010) is vertically mounted on the second base plate (105). The upper end of the second spring (1010) is fixed with a locking block (1011) that slides on the side of the support frame (106). The locking block (1011) can be locked into the slot (109).

2. The automatic feeding device for factory-scale recirculating aquaculture according to claim 1, characterized in that, The tensioning component includes: The motor (35) is fixed on the positioning frame (31); The roller shafts (36) are two parallel ones that rotate inside the positioning frame (31). One end of one of the roller shafts (36) is connected to the output end of the motor (35). Both roller shafts (36) are fixed with sprockets (37), and a chain (38) is provided between the two sprockets (37). The baffles (39) are concentrically fixed on the roller (36). Each roller (36) has three baffles (39) and the roller (36) is divided into two equally sized winding areas by the three baffles (39). A steel cable (310) is wound in the winding area of ​​a roller (36), and a hook (311) is fixed at the other end of the steel cable (310). Two steel cables (310) are provided on each of the rollers (36).

3. The automatic feeding device for factory-scale recirculating aquaculture according to claim 2, characterized in that, The storage box (4) has an opening at the top and a hanging ring (5) that engages with the hook (311) at the top. The storage box (4) has a slope at the bottom. The discharge pipe (6) is located at the lowest point of the bottom of the storage box (4). A valve pipe (7) is fixed at the lower end of the discharge pipe (6).

4. The automatic feeding device for factory-scale recirculating aquaculture according to claim 3, characterized in that, The lower end of the valve pipe (7) is fixed with a support member (8), the support member (8) comprising: The positioning ring (81) is fixed to the lower end of the valve tube (7), and the lower end of the positioning ring (81) is fixed with several circumferentially distributed and arc-shaped support plates (82). A bottom ring (83) is fixed to the other end of several support plates (82) and is concentrically set with a positioning ring (81). The diameter of the bottom ring (83) is larger than the diameter of the positioning ring (81). A pad (84) is fixed to the lower end of the bottom ring (83).

5. The automatic feeding device for factory-scale recirculating aquaculture according to claim 4, characterized in that, An infrared generator (9) is also fixed on one side of the storage box (4), and the irradiation direction of the infrared generator (9) is obliquely pointing directly below the valve tube (7).

6. The automatic feeding device for factory-scale recirculating aquaculture according to claim 5, characterized in that, The maximum distance between the two support feet (107) is greater than the length of the second through hole (102). When the support foot (107) contacts the inner wall of the second through hole (102), it rotates against the elastic force of the first spring (108). The rotation angle does not meet the engagement of the latch (109) and the latch (1011). When the support foot (107) contacts the protrusion (104), it rotates against the elastic force of the first spring (108). The rotation angle satisfies the engagement of the latch (109) and the latch block (1011). In the engaged state, the maximum distance between the two support feet (107) is less than the length of the second through hole (102).

7. The method of using the automatic feeding device for factory-scale recirculating aquaculture according to claim 6, characterized in that, include: S1. The second rail (2) is moved by the trolley, and then the storage box (4) is moved to the corresponding open space by the trolley. Then the roller (36) is rotated by the motor (35) to release the steel cable (310) and lower the storage box (4) until the support (8) contacts the ground. Then feed can be added into the storage box (4). S2. After the feed is added, the motor (35) drives the roller (36) to rotate in the opposite direction to wind up the steel cable (310) until the support foot (107) in the plug-in enters the shell (103) through the second through hole (102). Under the elastic force of the first spring (108), the lower end of the support foot (107) opens and sits on the upper end of the first base plate (101), thereby fixing the storage box (4). S3. The storage box (4) is moved by the large and small trolleys. The infrared generator (9) is used to accurately position the storage box (4) so ​​that the storage box (4) is moved to the top of each breeding pond or breeding bucket. Then the valve pipe (7) is opened to let the feed fall, so as to achieve automatic and accurate feeding. S4. After the feed is consumed, the storage box (4) is moved up a distance by the pulling part so that the support foot (107) contacts the protrusion (104). Under the action of the protrusion (104), the support foot (107) overcomes the elastic force of the first spring (108) and rotates, so that the locking block (1011) is embedded in the slot (109). In this state, the maximum distance between the two support feet (107) is less than the length of the second through hole (102). Therefore, the plug can be disengaged from the seat, so that the storage box (4) moves down and is refilled.

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