Full-automatic fish passing channel device and using method thereof

Abstract

The invention relates to the technical field of fish transportation equipment, and particularly discloses a full-automatic fish passing channel device and a using method thereof.The full-automatic fish passing channel device comprises a head pipeline, an expansion pipe is arranged on the outer side of the head pipeline, a tail pipeline is arranged on the side, away from the head pipeline, of the expansion pipe, and storage pipes are fixedly connected to the outer surfaces of the two sides of the expansion pipe. Fish schools can adapt to the target water area in advance by communicating the box body with the target water area in advance, the water passing effect is achieved, the survival ability of the fish schools is greatly improved, meanwhile, the channel is integrally closed and free of light, and after the box body bearing the fish schools is communicated with the target water area, the single path of the channel greatly improves the fish passing efficiency; and through reciprocating multi-section adjustment, releasing of different kinds of fish schools is automatically completed, and the problem that at present, the size of an existing channel is fixed, and large-size fish schools and small-size fish schools are released at the same time, so that the small-size fish schools are difficult to survive is solved.

Description

Technical Field

[0001] The invention relates to the technical field of fish transport equipment, in particular to a fully automatic fish passage device and a use method thereof. Background Art

[0002] In the field of water conservancy projects and ecological protection, fully automatic fish passage devices are extremely important. Their main function is to provide fish with safe and efficient migration channels when water conservancy facilities (such as dams, sluice gates, etc.) block the fish migration path, ensuring that fish can smoothly travel back and forth between different waters to maintain their population reproduction and ecological balance. In fish farming projects, releasing fish through fish passages also plays an indispensable role. This device plays a key role in river ecological restoration and fishery resource protection.

[0003] Traditional fish passage devices have many shortcomings. In terms of adaptability, the channel size is usually fixed and cannot be flexibly adjusted according to the size of different fish. As a result, when large and small fish pass through at the same time, small fish are easily squeezed, scratched or washed away by the water, seriously affecting their survival and success rate of migration. In addition, the channel lacks an effective debris cleaning mechanism, and sand and gravel in the water are easily accumulated in the channel, hindering the passage of fish and even scratching the fish body; at the same time, the device is inconvenient to store and occupies a large area, which increases the difficulty and cost of maintenance and management. It is difficult to meet the requirements of modern ecological protection projects for efficient, safe and convenient fish facilities, and it is in urgent need of improvement and innovation. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The present invention provides a fully automatic fish passage device and a use method thereof, which solves the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fully automatic fish passage device, comprising a head pipe, an expansion pipe is arranged outside the head pipe, a tail pipe is arranged on the side of the expansion pipe away from the head pipe, and storage pipes are fixedly connected to the outer surfaces of both sides of the expansion pipe, wherein the head pipe, the expansion pipe and the tail pipe are connected through the storage pipe, and further comprising:

[0008] An adjustment system, the adjustment system being fixedly mounted inside the head pipe, wherein the adjustment system performs contraction and expansion movements around a central axis of the head pipe;

[0009] A cleaning assembly, wherein the cleaning assembly is fixedly mounted inside the expansion pipe and the tail pipe respectively;

[0010] The diameters of the head pipe, expansion pipe and tail pipe are set to increase gradually, and the head pipe, expansion pipe and tail pipe are set to be of equal length. The storage pipe is set to be an elastic rubber corrugated hose, and the diameter of the storage pipe is set to increase gradually.

[0011] Preferably, the adjustment system includes a fixing ring, the outer surface of which is fixedly connected to the inner surface of the head pipe on the side close to the expansion pipe, the inner surface of the fixing ring is fixedly connected to an isolation tube, the isolation tube and the head pipe are arranged on the same central axis, and an annular cavity exists between the isolation tube and the head pipe, the end of the isolation tube away from the fixing ring is fixedly connected to a closed tube, and the outer surface of the closed tube is fixedly fitted to the inner surface of the head pipe.

[0012] Preferably, a No. 1 connecting plate is fixedly connected to the inner surface of one end of the isolation tube away from the fixing ring, and the No. 1 connecting plate is made of a flexible rubber material, wherein the No. 1 connecting plate is arranged in a fan shape, and three No. 1 connecting plates are arranged at fixed intervals around the central axis of the isolation tube, and a No. 2 connecting plate is fixedly connected between adjacent No. 1 connecting plates.

[0013] Preferably, the No. 2 connecting plate is made of elastic rubber material, and the No. 2 connecting plate is configured to be corrugated. The end of the No. 1 connecting plate away from the isolation tube is fixedly connected to a plug-in tube, and the plug-in tube is configured to be arc-shaped. Plug-in grooves are provided at both ends of the plug-in tube, and an expansion bag is fixedly connected in the plug-in groove.

[0014] Preferably, the outer surface of the expansion bag is fixedly connected with a plug rod, the plug rod is arranged in an arc shape, and the two ends of the plug rod are respectively slidably plugged into the plug grooves of the adjacent plug tubes, wherein the plug rod and the plug tube are combined into a nearly circular shape, and the plug rod is arranged on the inner side of the second connecting plate.

[0015] Preferably, an extrusion ring is slidably sleeved on the outer surface of one end of the isolation tube away from the fixed ring, an extrusion bag is fixedly connected to the outer surface of the extrusion ring, the extrusion bag is configured to be tubular, and one end of the extrusion bag away from the extrusion ring is fixedly connected to the inner surface of the fixed ring, wherein the extrusion bag is arranged in a cavity between the isolation tube and the head pipe, and a slide groove is symmetrically opened through the side surface of the head pipe, a drive ring is slidably sleeved on the outer surface of the head pipe, the drive ring is fixedly connected to the extrusion ring via the slide groove, and the extrusion bag is communicated with the expansion bag.

[0016] Preferably, a positioning ring is fixedly connected to the inner surface of the closed tube, a mounting plate is fixedly connected to the side surface of the plug-in tube away from the fixing ring, a positioning rod is symmetrically hinged on the outer surface of the mounting plate, and one end of the positioning rod away from the mounting plate is slidably connected to the inner surface of the positioning ring.

[0017] Preferably, the cleaning assembly includes a separation tube, the outer surface of which is fixedly connected to the inner surface of an end of the tail pipe away from the expansion tube, the outer surface of the end of the separation tube close to the expansion tube is arranged in an inclined shape, wherein an annular cavity exists between the end of the separation tube close to the expansion tube and the tail pipe, a collecting groove is provided through the bottom of the tail pipe, a collecting box is fixedly fastened on the outer surface of the tail pipe, and the collecting box is arranged just outside the collecting groove, wherein a cleaning assembly is also arranged on the expansion pipe, the head pipe, the expansion pipe and the tail pipe are connected through a receiving pipe, and the head pipe is connected to a box carrying the fish school, and then the tail pipe is immersed in the target water area as a whole, and then the water in the target water area is pumped into the box carrying the fish school by a water pump, so as to realize water quality exchange and connection, and the fish school carrying the box enters the expansion pipe through the head pipe, and finally enters the target water area through the tail pipe to complete the release of the fish school.

[0018] A method for using a fully automatic fish passage device comprises the following steps:

[0019] S1. Prepare different numbers of expansion pipes according to the required lengths, and connect the expansion pipes with the head pipe and the tail pipe through the receiving pipe;

[0020] S2, connecting the head pipe of the channel device prepared in S1 to the box carrying the fish school, and placing the tail pipe as a whole into the target water area, pumping water slowly at the beginning, and gradually increasing the pumping speed;

[0021] S3, pumping water from the target water area to the box carrying the fish school through a water pump to exchange water quality, and connecting the box carrying the fish school with the target water area through the channel device;

[0022] S4, adjusting the size of the cavity inside the head pipe by intermittently moving the driving ring, and performing a staged release of the school of fish until the release of the school of fish is completed;

[0023] S5. Stack the head pipe, expansion pipe and tail pipe layer by layer and buckle them together to complete the storage.

[0024] (III) Beneficial effects

[0025] The present invention provides a fully automatic fish passage device and a method for using the same. It has the following beneficial effects:

[0026] (I) The fish passage device and its use method can make the fish adapt to the target water area in advance by connecting the box body with the target water area in advance, so as to achieve the effect of passing through water and greatly improve the survival ability of the fish. At the same time, the whole passage is closed and lightless. When the box body carrying the fish school is connected with the target water area, the single path of the passage also greatly improves the fish passing efficiency. At the same time, when the driving ring is moved, the extrusion ring will squeeze the extrusion bag, thereby increasing the internal cavity pressure of the extrusion bag, and transmitting the internal air pressure to the expansion bag. The expansion bag begins to expand under the action of air pressure, which will squeeze the plug rod. This causes the plug-in rod and the plug-in tube to start expanding movement, thereby adjusting the inner aperture size of the plug-in tube and the plug-in rod, so as to classify and release the fish in the box carrying the fish. Initially, the inner aperture size of the plug-in tube and the plug-in rod only allows small-sized fish to pass through. When the small-sized fish passes through, the driving ring is moved to expand the inner aperture of the plug-in tube and the plug-in rod, thereby increasing the volume of the fish passing through. In this way, multiple adjustments are made back and forth to automatically release different types of fish, avoiding the problem of the current fixed channel size, the simultaneous release of large-sized fish and small-sized fish, which makes it difficult for the small-sized fish to survive.

[0027] (II) The fish passage device and its use method, when the plug-in tube and the plug-in rod expand, the No. 1 connecting plate will be squeezed, causing the No. 1 connecting plate to be squeezed and deformed. Since the plug-in tube and the plug-in rod expand in an annular manner, the No. 2 connecting plate is provided and the strong deformation advantage of the No. 2 connecting plate is utilized to make the deformation between the plug-in tube and the plug-in rod more stable, which not only greatly improves the service life of the No. 1 connecting plate, but also can prevent the fish from being released through the outside of the plug-in tube and the plug-in rod and causing mixing through the sealing effect between the No. 1 connecting plate and the No. 2 connecting plate, thereby greatly improving the applicability of the passage device When the plug-in tube and the connecting rod expand, the mounting plate will be driven to move outward synchronously, thereby squeezing the positioning rod and causing the outer end of the positioning rod to slide along the inner surface of the positioning ring, which not only fixes the position of the plug-in tube to avoid strong shaking of the plug-in tube under the impact of water flow and affects the fish passing efficiency, but also further improves the stability of the channel device. By fixing the plug-in tube relatively, it can also avoid the problem of difficulty in contraction of the No. 1 connecting plate and the No. 2 connecting plate due to irregular movement of the plug-in tube and the connecting rod under the action of water flow, thereby further improving the stability of the channel device.

[0028] (III) The fish passage device and its use method, when the water flow is normally transported, the sand and gravel particles carried in the water will synchronously enter the channel and be transported through the bottom of the channel. When the sand and gravel move to the front of the expansion tube with the water flow, they will be decelerated by the corrugation effect of the receiving tube, and finally enter the cavity between the expansion tube and the separation tube through the receiving tube, and then enter the collection box through the collecting trough. Through the mutual cooperation between the receiving tube, the expansion tube and the tail pipe, the sand and gravel in the water can be first decelerated through the receiving tube during the fish passing process, greatly reducing the flow speed of the sand and gravel in the water flow, and then better entering the collection box, greatly improving the filtering and collection effect of the sand and gravel in the water flow, and filtering the sand and gravel in the water flow can avoid the problem of friction and collision between the high-speed sand and gravel and the fish school during the fish passing, causing the fish school to be injured, further improving the protection effect of the fish school, when the fish passing is completed, it is only necessary to stack the head pipe, the expansion pipe and the tail pipe to complete the storage, which greatly reduces the floor space of the channel and is convenient for storage and placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the separation tube of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the collecting tank of the present invention;

[0032] Figure 4 It is a schematic structural diagram of the drive ring of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the positioning ring of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the extrusion bag of the present invention;

[0035] Figure 7 It is a structural schematic diagram of the second connecting plate of the present invention;

[0036] Figure 8 It is a schematic structural diagram of the expansion bag of the present invention.

[0037] In the figure: 1. head pipe; 2. expansion pipe; 3. tail pipe; 4. storage pipe; 5. adjustment system; 51. fixing ring; 52. isolation pipe; 53. closing pipe; 54. No. 1 connecting plate; 55. No. 2 connecting plate; 56. plug-in pipe; 57. plug-in slot; 58. expansion bag; 59. plug-in rod; 510. extrusion ring; 511. extrusion bag; 512. slide slot; 513. drive ring; 514. positioning ring; 515. mounting plate; 516. positioning rod; 6. cleaning assembly; 61. separation pipe; 62. collection tank; 63. collection box. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a fully automatic fish passage device, comprising a head pipe 1, an expansion pipe 2 is arranged outside the head pipe 1, a tail pipe 3 is arranged on the side of the expansion pipe 2 away from the head pipe 1, and storage pipes 4 are fixedly connected to the outer surfaces of both sides of the expansion pipe 2, wherein the head pipe 1, the expansion pipe 2 and the tail pipe 3 are connected through the storage pipe 4, and also includes:

[0040] An adjustment system 5, the adjustment system 5 is fixedly installed inside the head pipe 1, wherein the adjustment system 5 performs contraction and expansion movements around the central axis of the head pipe 1;

[0041] A cleaning assembly 6, wherein the cleaning assembly 6 is fixedly mounted inside the expansion pipe 2 and the tail pipe 3 respectively;

[0042] The diameters of the head pipe 1, the expansion pipe 2 and the tail pipe 3 are set to increase gradually, and the head pipe 1, the expansion pipe 2 and the tail pipe 3 are set to be of equal length, the storage pipe 4 is set to be an elastic rubber corrugated hose, and the diameter of the storage pipe 4 is set to increase gradually.

[0043] The adjustment system 5 includes a fixing ring 51, the outer surface of which is fixedly connected to the inner surface of the head pipe 1 close to the expansion pipe 2, the inner surface of the fixing ring 51 is fixedly connected to an isolation tube 52, the isolation tube 52 and the head pipe 1 are arranged on the same central axis, and there is an annular cavity between the isolation tube 52 and the head pipe 1, and the end of the isolation tube 52 away from the fixing ring 51 is fixedly connected to a closing tube 53, the outer surface of the closing tube 53 is fixedly fitted to the inner surface of the head pipe 1.

[0044] A No. 1 connecting plate 54 is fixedly connected to the inner surface of one end of the isolation tube 52 away from the fixed ring 51. The No. 1 connecting plate 54 is made of flexible rubber material, wherein the No. 1 connecting plate 54 is arranged in a fan shape, and three No. 1 connecting plates 54 are arranged at fixed intervals around the central axis of the isolation tube 52, and a No. 2 connecting plate 55 is fixedly connected between adjacent No. 1 connecting plates 54.

[0045] The No. 2 connecting plate 55 is made of elastic rubber material and is configured to be corrugated. The end of the No. 1 connecting plate 54 away from the isolation tube 52 is fixedly connected with a plug-in tube 56. The plug-in tube 56 is configured to be arc-shaped. Plug-in grooves 57 are provided at both ends of the plug-in grooves 57, and an expansion bag 58 is fixedly connected in the plug-in grooves 57.

[0046] The outer surface of the expansion bag 58 is fixedly connected with a plug rod 59, which is arranged in an arc shape. The two ends of the plug rod 59 are respectively slidably plugged into the plug groove 57 of the adjacent plug tube 56, wherein the plug rod 59 and the plug tube 56 are combined into a nearly circular shape, and the plug rod 59 is arranged on the inner side of the second connecting plate 55.

[0047] An extrusion ring 510 is slidably sleeved on the outer surface of one end of the isolation tube 52 away from the fixed ring 51, and an extrusion bag 511 is fixedly connected to the outer surface of the extrusion ring 510. The extrusion bag 511 is configured to be tubular, and one end of the extrusion bag 511 away from the extrusion ring 510 is fixedly connected to the inner surface of the fixed ring 51, wherein the extrusion bag 511 is arranged in a cavity between the isolation tube 52 and the head pipe 1, and a slide groove 512 is symmetrically opened on the side surface of the head pipe 1, and a driving ring 513 is slidably sleeved on the outer surface of the head pipe 1, and the driving ring 513 is fixedly connected to the extrusion ring 510 through the slide groove 512, and the extrusion bag 511 is communicated with the expansion bag 58.

[0048] A positioning ring 514 is fixedly connected to the inner surface of the closed tube 53, a mounting plate 515 is fixedly connected to the side surface of the plug-in tube 56 away from the fixing ring 51, a positioning rod 516 is symmetrically hinged on the outer surface of the mounting plate 515, and one end of the positioning rod 516 away from the mounting plate 515 is slidably connected to the inner surface of the positioning ring 514.

[0049] Second embodiment: Figures 1 to 8 As shown, the cleaning assembly 6 includes a separation tube 61, the outer surface of which is fixedly connected to the inner surface of one end of the tail pipe 3 away from the expansion pipe 2, and the outer surface of the end of the separation tube 61 close to the expansion pipe 2 is arranged in an inclined shape, wherein an annular cavity exists between the end of the separation tube 61 close to the expansion pipe 2 and the tail pipe 3, a collecting groove 62 is opened through the bottom of the tail pipe 3, and a collecting box 63 is fixedly fastened on the outer surface of the tail pipe 3, and the collecting box 63 is arranged just outside the collecting groove 62, wherein the cleaning assembly 6 is also arranged on the expansion pipe 2.

[0050] A method for using a fully automatic fish passage device comprises the following steps:

[0051] S1. Prepare different numbers of expansion tubes 2 according to the required lengths, and connect the expansion tubes 2 to the head pipe 1 and the tail pipe 3 through the receiving pipe 4;

[0052] S2, connecting the head pipe 1 of the channel device prepared in S1 to the box carrying the fish school, and placing the tail pipe 3 as a whole into the target water area, pumping water slowly at the beginning, and gradually increasing the pumping speed;

[0053] S3, pumping water from the target water area to the box carrying the fish school through a water pump to exchange water quality, and connecting the box carrying the fish school with the target water area through the channel device;

[0054] S4, intermittently moving the driving ring 513 to adjust the size of the cavity inside the head pipe 1, and release the fish in stages until the release of the fish is completed;

[0055] S5, stacking and buckling the head pipe 1, the expansion pipe 2 and the tail pipe 3 layer by layer to complete the storage.

[0056] When working, the head pipe 1, the expansion pipe 2 and the tail pipe 3 are connected through the storage pipe 4, and the head pipe 1 is connected to the box carrying the fish school, and then the tail pipe 3 is completely immersed in the target water area, and then the water in the target water area is pumped into the box carrying the fish school by a water pump to achieve water quality exchange and connection. The fish school carrying the box enters the expansion pipe 2 through the head pipe 1, and finally enters the target water area through the tail pipe 3 to complete the release of the fish school. By connecting the box with the target water area in advance, the fish school can adapt to the target water area in advance, achieve the effect of passing through water, and greatly improve the survival ability of the fish school. At the same time, this channel is completely closed and lightless. When the box carrying the fish school is connected with the target water area, the single path of this channel also greatly improves the fish passing effect The extrusion ring 510 squeezes the extrusion bag 511, thereby increasing the pressure of the internal cavity of the extrusion bag 511, and transmitting the internal air pressure to the expansion bag 58. The expansion bag 58 begins to expand under the action of the air pressure, that is, it squeezes the plug rod 59, thereby causing the plug rod 59 and the plug tube 56 to start expanding, thereby adjusting the inner aperture size of the plug tube 56 and the plug rod 59, so as to classify and release the fish in the box carrying the fish. Initially, the inner aperture size of the plug tube 56 and the plug rod 59 only allows small-volume fish to pass through. After the small-volume fish passes through, the driving ring 513 is moved to expand the inner aperture size of the plug tube 56 and the plug rod 59, thereby increasing the volume of the fish passing through. In this way, multiple adjustments are made reciprocatingly to automatically release different types of fish, thereby avoiding the problem that the current channel size is fixed, and large fish and small fish are released simultaneously, resulting in difficulty for the small fish to survive. At the same time, when the plug-in tube 56 and the plug-in rod 59 expand, the No. 1 connecting plate 54 will be squeezed, causing the No. 1 connecting plate 54 to be squeezed and deformed. Since the plug-in tube 56 and the plug-in rod 59 expand in an annular manner, the deformation between the plug-in tube 56 and the plug-in rod 59 is more stable by providing the No. 2 connecting plate 55 and utilizing the strong deformation advantage of the No. 2 connecting plate 55, which not only greatly improves the service life of the No. 1 connecting plate 54, but also prevents the fish from passing through through the sealing effect between the No. 1 connecting plate 54 and the No. 2 connecting plate 55. The outer sides of the plug-in tube 56 and the plug-in rod 59 are released to cause mixing, which greatly improves the applicability of the channel device. When the plug-in tube 56 and the plug-in rod 59 expand, the mounting plate 515 is driven to move outward synchronously, thereby squeezing the positioning rod 516, causing the outer end of the positioning rod 516 to slide along the inner surface of the positioning ring 514, which can not only fix the position of the plug-in tube 56 to avoid strong shaking of the plug-in tube 56 under the impact of the water flow, affecting the fish passing efficiency, but also further improve the use stability of the channel device. In addition, by relatively fixing the plug-in tube 56, the problem of difficulty in contraction of the No. 1 connecting plate 54 and the No. 2 connecting plate 55 due to irregular movement of the plug-in tube 56 and the plug-in rod 59 under the action of the water flow can be avoided.The stability of the channel device is further improved. When the water flow is normally transported, the sand and gravel particles carried in the water will enter the channel synchronously and be transported through the bottom of the channel. When the sand and gravel move to the expansion pipe 2 with the water flow, they will be decelerated by the corrugation effect of the receiving pipe 4, and finally enter the cavity between the expansion pipe 2 and the separation pipe 61 through the receiving pipe 4, and then enter the collection box 63 through the collecting groove 62. Through the mutual cooperation between the receiving pipe 4, the expansion pipe 2 and the tail pipe 3, it can be realized that the sand and gravel are transported to the bottom of the channel through the receiving pipe 4 during the fish passing process. The pipe 4 first decelerates the sand and gravel in the water, greatly reducing the flow speed of the sand and gravel in the water flow, so that the sand and gravel can enter the collection box 63 better, greatly improving the filtering and collecting effect of the sand and gravel in the water flow. The filtering of the sand and gravel in the water flow can avoid the problem of friction and collision between the high-speed sand and gravel and the fish school during the fish passing, which further improves the protection effect of the fish school. After the fish passing is completed, it only needs to stack the head pipe 1, the expansion pipe 2 and the tail pipe 3 to complete the storage, which greatly reduces the floor space of the channel and is convenient for storage and placement.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic fish passage device, comprising a head pipe (1), characterized in that: An expansion pipe (2) is arranged outside the head pipe (1), a tail pipe (3) is arranged on a side of the expansion pipe (2) away from the head pipe (1), and receiving pipes (4) are fixedly connected to the outer surfaces of both sides of the expansion pipe (2), wherein the head pipe (1), the expansion pipe (2) and the tail pipe (3) are connected via the receiving pipes (4), and further comprising: An adjustment system (5), wherein the adjustment system (5) is fixedly installed inside the head pipe (1), wherein the adjustment system (5) performs contraction and expansion movements around the central axis of the head pipe (1); A cleaning assembly (6), wherein the cleaning assembly (6) is fixedly installed inside the expansion pipe (2) and the tail pipe (3) respectively; The diameters of the head pipe (1), the expansion pipe (2) and the tail pipe (3) are arranged to increase gradually, and the head pipe (1), the expansion pipe (2) and the tail pipe (3) are arranged to be of equal length, the receiving pipe (4) is arranged to be an elastic rubber corrugated hose, and the diameter of the receiving pipe (4) is arranged to increase gradually.

2. A fully automatic fish passage device according to claim 1, characterized in that: The regulating system (5) comprises a fixing ring (51), the outer surface of which is fixedly connected to the inner surface of the head pipe (1) close to the expansion pipe (2), the inner surface of which is fixedly connected to an isolation pipe (52), the isolation pipe (52) and the head pipe (1) are arranged on the same central axis, and an annular cavity exists between the isolation pipe (52) and the head pipe (1), and the end of the isolation pipe (52) away from the fixing ring (51) is fixedly connected to a closed pipe (53), the outer surface of which is fixedly fitted to the inner surface of the head pipe (1).

3. A fully automatic fish passage device according to claim 2, characterized in that: A No. 1 connecting plate (54) is fixedly connected to the inner surface of one end of the isolation tube (52) away from the fixing ring (51), wherein the No. 1 connecting plate (54) is made of a flexible rubber material, wherein the No. 1 connecting plate (54) is arranged in a fan shape, and three No. 1 connecting plates (54) are arranged at fixed intervals around the central axis of the isolation tube (52), and a No. 2 connecting plate (55) is fixedly connected between adjacent No. 1 connecting plates (54).

4. A fully automatic fish passage device according to claim 3, characterized in that: The second connecting plate (55) is made of elastic rubber material and is configured to be corrugated. One end of the first connecting plate (54) away from the isolation tube (52) is fixedly connected to a plug-in tube (56), the plug-in tube (56) is configured to be arc-shaped, and plug-in grooves (57) are provided at both ends of the plug-in groove (57), and an expansion bag (58) is fixedly connected inside the plug-in groove (57).

5. A fully automatic fish passage device according to claim 4, characterized in that: The outer surface of the expansion bag (58) is fixedly connected with a plug rod (59), and the plug rod (59) is arranged in an arc shape. The two ends of the plug rod (59) are respectively slidably plugged into the plug groove (57) of the adjacent plug tube (56), wherein the plug rod (59) and the plug tube (56) are combined into a nearly circular ring shape, and the plug rod (59) is arranged on the inner side of the second connecting plate (55).

6. A fully automatic fish passage device according to claim 5, characterized in that: An extrusion ring (510) is slidably sleeved on the outer surface of one end of the isolation tube (52) away from the fixed ring (51), and an extrusion bag (511) is fixedly connected to the outer surface of the extrusion ring (510). The extrusion bag (511) is arranged in a tubular shape, and one end of the extrusion bag (511) away from the extrusion ring (510) is fixedly connected to the inner surface of the fixed ring (51), wherein the extrusion bag (511) is arranged in a cavity between the isolation tube (52) and the head pipe (1), and a sliding groove (512) is symmetrically opened through the side surface of the head pipe (1), and a driving ring (513) is slidably sleeved on the outer surface of the head pipe (1), and the driving ring (513) is fixedly connected to the extrusion ring (510) through the sliding groove (512), and the extrusion bag (511) is communicated with the expansion bag (58).

7. A fully automatic fish passage device according to claim 6, characterized in that: A positioning ring (514) is fixedly connected to the inner surface of the closed tube (53); a mounting plate (515) is fixedly connected to the surface of the plug-in tube (56) on the side away from the fixing ring (51); a positioning rod (516) is symmetrically hinged on the outer surface of the mounting plate (515); and one end of the positioning rod (516) away from the mounting plate (515) is slidably connected to the inner surface of the positioning ring (514).

8. A fully automatic fish passage device according to claim 7, characterized in that: The cleaning assembly (6) comprises a separation tube (61), the outer surface of which is fixedly connected to the inner surface of an end of the tail pipe (3) away from the expansion pipe (2), the outer surface of the end of the separation tube (61) close to the expansion pipe (2) is arranged in an inclined shape, wherein an annular cavity exists between the end of the separation tube (61) close to the expansion pipe (2) and the tail pipe (3), a collecting groove (62) is provided through the bottom of the tail pipe (3), a collecting box (63) is fixedly buckled on the outer surface of the tail pipe (3), and the collecting box (63) is arranged just outside the collecting groove (62), wherein the cleaning assembly (6) is also arranged on the expansion pipe (2).

9. A method for using a fully automatic fish passage device, comprising a fully automatic fish passage device as claimed in claim 1 to claim 8, characterized in that: The following steps are involved: S1. Prepare different numbers of expansion tubes (2) according to the required lengths, and connect the expansion tubes (2) to the head pipe (1) and the tail pipe (3) through the storage pipe (4); S2, connecting the head pipe (1) of the channel device prepared in S1 to the box carrying the fish school, and placing the tail pipe (3) as a whole into the target water area, pumping water slowly at the beginning, and gradually increasing the pumping speed; S3, pumping water from the target water area to the box carrying the fish school through a water pump to exchange water quality, and connecting the box carrying the fish school with the target water area through the channel device; S4, adjusting the size of the cavity inside the head pipe (1) by intermittently moving the driving ring (513), and performing a staged release of the school of fish until the release of the school of fish is completed; S5, stacking the head pipe (1), the expansion pipe (2) and the tail pipe (3) layer by layer and buckling them together to complete the storage.

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