Fish collecting system of vertical seam type fishway outlet

Abstract

The utility model discloses a fish collecting system of a vertical seam type fishway outlet, which relates to the technical field of water conservancy project fish collecting systems, is applied to a vertical seam type fishway and comprises a fish collecting net cage, a fish guide net, an operation platform and the like. The fish collecting net cage is located near the fishway outlet and provided with a fish storage cavity, a fish inlet and a detachable cage cover to expose or close the fish storage cavity, and the cage cover is connected with the fish collecting net cage through a zipper structure. The fish guide net is used for connecting an orifice of a partition plate at an outlet of the fishway and a fish inlet of the fish collecting net cage, the fish guide net is connected with the fish inlet of the fish collecting net cage through a zipper structure, dismounting and mounting are convenient, a plurality of horn-shaped one-way fish guide structures are arranged in the fish guide net, and the widths of the horn-shaped one-way fish guide structures are gradually reduced from the downstream of the fishway to the upstream of the fishway. The fish can hardly flow down to escape from the fish guiding net, the one-way fish guiding effect is achieved, and the fish collecting effect is better. In order to facilitate operation, the fish gathering system needs to be provided with an operation platform with a guardrail and a floating platform.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fish gathering system of water conservancy project, especially a fish gathering system of vertical slit type fishway outlet. BACKGROUND

[0002] In the fishway of water conservancy project, in order to collect and analyze the fish samples along the fishway, fish gathering facilities can be arranged in the fishway to capture the upstream fish, at present, the fish gathering facilities generally adopt fish guide net, fish guide grid and other structures to guide the fish into the fishing box, for the existing fish gathering facilities, generally do not have the anti-escape device, leading to the fish to easily escape from the fish guide net, and the fish gathering effect is poor, and the existing fish gathering facilities are not convenient to disassemble and install. SUMMARY

[0003] The utility model aims at solving the problems in prior art, for this purpose, the utility model provides a fish gathering system of vertical slit type fishway outlet, which can prevent fish from escaping from the fish guide net, improve the fish gathering effect, and is convenient to disassemble and install.

[0004] The fish gathering system of vertical slit type fishway outlet according to the embodiment of the utility model is applied to the vertical slit type fishway, the vertical slit type fishway comprises a fishway body and a partition plate arranged in the fishway body, the partition plate is provided with an orifice, the fishway body has a fishway outlet at the upstream position, the fish gathering system is arranged near the outlet of the fishway body, and the fish gathering system comprises:

[0005] A fish gathering net box is arranged in the fishway body or at the fishway outlet, the fish gathering net box has a fish storage cavity and a fish inlet communicating with the fish storage cavity, the fish gathering net box is further provided with a detachable box cover to expose or close the fish storage cavity, and the box cover is connected with the fish gathering net box through a zipper structure.

[0006] A fish guide net is used for connecting the orifice and the fish inlet, the fish guide net is connected with the fish inlet through a zipper structure, and the fish guide net is convenient to disassemble and install, a plurality of horn-shaped one-way fish guide structures are arranged in the fish guide net and are spaced apart along the length direction of the fish guide net, the width of the horn-shaped one-way fish guide structure gradually decreases from the downstream of the fishway body to the upstream of the fishway body, and the maximum width of the plurality of horn-shaped one-way fish guide structures gradually decreases, so that the fish is difficult to escape from the fish guide net along the flow direction, and the fish guide net plays a one-way fish guide role.

[0007] The fish gathering system of the vertical-seam fishway outlet has at least the following beneficial effects: in the process of fish upstream migration, the fish swim into the fish guide net through the orifice of the partition plate, and the one-way fish guide structure is arranged in the fish guide net, when the fish pass through the plurality of horn-shaped structures of the one-way fish guide structure, the gradually narrowing width of the horn-shaped structure can prevent the fish from escaping, so that the fish is not easy to escape from the fish guide net, thereby guiding the fish into the fish gathering net box, and the fish gathering effect is good; when the fish needs to be taken out, the zipper is pulled to open the box cover and expose the fish storage cavity of the fish gathering net box; when the fish gathering net box needs to be disassembled and separated, the zipper between the fish gathering net box and the fish guide net is pulled, and the disassembly and installation operations are relatively convenient.

[0008] In some embodiments, the fish gathering system further comprises a floating platform, the floating platform is arranged around the outer periphery of the fish gathering net box, and the floating platform is provided with a first guardrail.

[0009] In some embodiments, the fish gathering net box is fixed in the floating platform through a steel pipe pile.

[0010] In some embodiments, the orifice is a vertical seam, the fish guide net is connected with the vertical seam, and the two sides of the vertical seam are respectively provided with steel structures, the steel structures are provided with clamping grooves extending in the upward and downward directions, the two sides of the entrance of the fish guide net are respectively provided with support rods, the support rods are used for supporting the entrance of the fish guide net, and the support rods are inserted into the clamping grooves from top to bottom to fix the entrance of the fish guide net.

[0011] In some embodiments, the orifice comprises a hidden hole and a vertical seam, the fish guide net is connected with the hidden hole, and the fish gathering system of the vertical-seam fishway outlet further comprises a connecting platform and a grid, the connecting platform is arranged in the fishway body and corresponds to the hidden hole, one side of the connecting platform away from the hidden hole is provided with a steel structure, the steel structure is provided with a clamping groove extending in the upward and downward directions, the two sides of the fish guide net are respectively provided with support rods, the support rods are used for supporting the entrance of the fish guide net, the support rods are inserted into the clamping grooves from top to bottom to fix the entrance of the fish guide net, the connecting platform is further provided with a fish blocking screen, the fish blocking screen is perpendicular to the partition plate and located between the hidden hole and the vertical seam, and the grid is arranged at the vertical seam to block the fish from passing through the vertical seam.

[0012] In some embodiments, the opposite two sides of the vertical seam are respectively provided with channel steels, the channel steels form U-shaped clamping grooves extending in the upward and downward directions, and the two sides of the grid are inserted into the U-shaped clamping grooves from top to bottom.

[0013] In some embodiments, a horizontal operation platform is arranged at the vertical seam, and the operation platform is provided with a second guardrail.

[0014] In some embodiments, the trumpet-shaped one-way fish guide structure forms a fish guide inlet near one end of the aperture, forms a fish guide outlet near one end of the fish guide inlet, the fish guide inlet and the fish guide outlet are square, the trumpet-shaped one-way fish guide structure comprises a steel pipe frame, a steel bar frame and a fishing net, the steel pipe frame forms the fish guide inlet, the steel bar frame is used for supporting the fish guide inlet and the fish guide outlet, the steel bar frame is formed as a side edge of the trumpet-shaped one-way fish guide structure, and the fishing net is covered on the steel bar frame.

[0015] In some embodiments, the ratio of the area of the fish guide outlet to the area of the fish guide inlet is 1 / 9 to 1 / 4.

[0016] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and embodiments, wherein:

[0018] Figure 1 Structure diagram of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present application;

[0019] Figure 2 Partial structure diagram of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present application;

[0020] Figure 3 Structure diagram of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present application; Figure 2 Enlarged view of A in the middle;

[0021] Figure 4 Structure diagram of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present application;

[0022] Figure 5 Enlarged view of B in the middle; Figure 4

[0023] Figure 6 Partial structure diagram of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present application;

[0024] Figure 7 Partial structure diagram of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present application;

[0025] Figure 8 Enlarged view of C in the middle; Figure 7

[0026] Figure 9 ​​Structure diagram of the fish collecting net cage and the fish guiding net of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present utility model;

[0027] Figure 10 Exploded view of the fish collecting net cage and the fish guiding net of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present utility model;

[0028] Figure 11 Sectional view of the fish collecting net cage and the fish guiding net of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present utility model;

[0029] Figure 12 Sectional view of the fish collecting net cage and the fish guiding net of the fish collecting system of the vertical slit type fishway outlet of some embodiments of the present utility model.

[0030] Reference signs:

[0031] Vertical slit type fishway 100, fishway body 110, partition plate 120, hidden hole 121, vertical slit 122, channel steel 123, U-shaped clamping groove 124, operation platform 125, second guardrail 126, grating 127;

[0032] Fish collecting net cage 200, fish storage cavity 210, fish inlet 220, cage cover 230, steel pipe pile 240;

[0033] Fish guiding net 300, support rod 310;

[0034] One-way fish guiding structure 400, horn-shaped structure 410, fish guiding inlet 411, fish guiding outlet 412, steel pipe frame 413, steel reinforcement frame 414, fishing net 415;

[0035] Steel structure 500, clamping groove 510;

[0036] Buoy platform 600, first guardrail 610;

[0037] Connection platform 700, fish blocking screen 710. DETAILED DESCRIPTION

[0038] The embodiments of the present utility model are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present utility model, and cannot be understood as limiting the present utility model.

[0039] Reference Figure 1As shown in the figure, the fish gathering system of the vertical seam type fishway outlet is provided by the embodiment of the utility model, the fish gathering system is applied to the vertical seam type fishway, the vertical seam type fishway includes a fishway body 110 and multiple partitions 120, the multiple partitions 120 are arranged at intervals along the length direction of the fishway body 110, the fishway body 110 has an upstream position and a downstream position, the fishway body 110 has a fishway outlet, the fishway outlet is the fish outlet of the fishway body 110 connected with the reservoir area, the water flow in the fishway body 110 flows from the upstream to the downstream, the upstream fish in the fishway body 110 will move upstream from the downstream position to the upstream position along the water flow direction and finally swim to the reservoir area through the fishway outlet. The partition 120 is provided with an orifice, the orifice can be a vertical seam 122, the vertical seam 122 can allow the water flow to pass, and the fish will also pass through the vertical seam 122 when swimming upstream, the fish gathering system is located at the most upstream position of the fishway body 110 and is arranged at the position near the vertical seam of the partition 120, and fish can be gathered well.

[0040] Referring to Figure 1 As shown in the figure, the fish gathering system includes a fish gathering net cage 200 and a fish guiding net 300, the fish guiding net 300 and the fish gathering net cage 200 can be made of a steel frame and a high-strength fiber (such as nylon) mesh, which is firm and light, the size is determined by the specific fishway, and the mesh size is determined by the main fish species monitored, if the mesh is too dense, the fish gathering net cage 200 and the fish guiding net 300 are subjected to large stress in the water flow and are easy to be blocked, and if the mesh is too large, the fish blocking effect is affected, for example, the mesh of the fish guiding net 300 and the fish gathering net cage 200 can be 1 finger wide, which facilitates the water flow and the target fish will not pass through the mesh. Figure 10 As shown in the figure, the fish gathering net cage 200 is formed with a fish storage cavity 210 and a fish inlet 220 communicating with the fish storage cavity 210, and the fish gathering net cage 200 is also provided with a detachable cage cover 230 to expose or close the fish storage cavity 210, and the fish guiding net 300 is used to connect the vertical seam 122 of the partition 120 and the fish inlet 220. The fish guiding net 300 can be connected to the fish inlet 220 through a zipper structure, and the cage cover 230 is connected to the fish gathering net cage 200 through a zipper structure, so that the dismounting and mounting operation is more convenient.

[0041] Referring to Figure 11 And Figure 12 As shown in the figure, the fish gathering system further includes a one-way fish guiding structure 400, the one-way fish guiding structure 400 is arranged in the fish guiding net 300, the one-way fish guiding structure 400 includes multiple horn-shaped structures 410 arranged at intervals along the length direction of the fish guiding net 300, the horn-shaped structures 410 gradually decrease in width from the vertical seam 122 to the fish inlet 220, and the maximum widths of the multiple horn-shaped structures 410 decrease in turn.

[0042] The fish upstream process will pass through the vertical slit 122 of the partition 120 and swim into the fish guide net 300. When the fish passes through the plurality of horn-shaped structures 410 of the one-way fish guide structure 400, the fish is not easy to escape from the fish guide net 300 in the reverse direction due to the gradually narrowing width of the horn-shaped structure 410, thereby guiding the fish into the fish storage cavity 210 of the fish collecting net box 200, and the fish collecting effect is good. When it is necessary to take out the fish, the zipper is pulled to open the box cover 230 and expose the fish storage cavity 210 of the fish collecting net box 200. When it is necessary to disassemble and separate the fish collecting net box 200, the zipper between the fish collecting net box 200 and the fish guide net 300 is pulled to disassemble and install the operation more conveniently.

[0043] Referring to Figure 11 and Figure 12 As shown in the drawings, in some embodiments, the horn-shaped structure 410 forms a fish guide inlet 411 at one end close to the vertical slit 122 of the partition 120, and forms a fish guide outlet 412 at one end close to the fish inlet 220. The fish guide inlet 411 and the fish guide outlet 412 are square, for example, there are three horn-shaped structures 410, the side lengths of the fish guide inlets 411 of the three horn-shaped structures 410 are 0.8m, 0.6m and 0.5m respectively, the horn-shaped structure 410 includes a steel pipe frame 413, a steel bar frame 414 and a fishing net 415, the steel pipe frame 413 is a square structure, the steel pipe frame 413 forms the fish guide inlet 411 and can keep the fish guide inlet 411 open, the steel bar frame 414 is connected between the fish guide inlet 411 and the fish guide outlet 412, and the steel bar frame 414 is formed as a side edge of the horn-shaped structure 410. The fishing net 415 is covered on the steel bar frame 414, and the fishing net 415 can increase the flow area of the horn-shaped structure 410 and be beneficial to the flow of water. The one-way fish guide structure 400 of the embodiment is light and convenient to disassemble and install, and is also beneficial to the flow of water. The fish can perceive the flow direction of the water and swim into the fish collecting net box 200 along the horn-shaped structure 410, and the fish collecting effect is good.

[0044] In some embodiments, the ratio of the area of the fish guide outlet 412 to the area of the fish guide inlet 411 is 1 / 9 to 1 / 4, so that the area of the fish guide outlet 412 can be ensured to be small, and the fish is not easy to escape in the reverse direction from the horn-shaped structure 410.

[0045] Referring to Figure 9 As shown in the drawings, in some embodiments, the fish collecting net box 200 is a rectangular box with a length of 2m, a width of 1m and a height of 1m, and the occupied space is small, which conforms to the shape of the fishway main body 110.

[0046] Referring to Figure 1As shown, in some embodiments, the fish collection system also includes a floating platform 600, which surrounds the fish collection cage 200. The floating platform 600 can float on the water surface, allowing operators to stand on it to operate the fish collection cage 200 or the fish guide net 300. Compared to standing on the shore, operators are closer to the fish collection cage 200 or the fish guide net 300, making operation more convenient. The floating platform 600 can be formed by connecting hollow cubic plastic components into a semi-rectangular shape, accommodating up to three people operating simultaneously. It is fixed to the nearshore area by steel piles and cables. The floating platform 600 is equipped with a first guardrail 610 for protection.

[0047] Reference Figure 9 As shown, in some embodiments, the fish collection cage 200 is fixed inside the floating platform 600 by steel pipe piles 240, which can fix the position of the fish collection cage 200.

[0048] Reference Figure 2 and Figure 3 As shown, the fish guide net 300 is connected to the vertical seam 122. Steel structures 500 are provided on both sides of the vertical seam 122. Each steel structure 500 has a slot 510 extending vertically. The slot 510 can be understood as a T-shaped structure. Support rods 310 are provided on both sides of the fish guide net 300. The support rods 310 are vertically positioned and are used to open the entrance of the fish guide net 300. The support rods 310 are inserted into the slots 510 from top to bottom, thereby fixing the entrance of the fish guide net 300 and connecting it to the vertical seam 122. Of course, other snap-fit ​​structures can also be used for connection. The connection method in this embodiment is relatively stable, and the disassembly and installation operations are more convenient.

[0049] Reference Figure 4 and Figure 5 As shown, in some embodiments, the fish collection system can be arranged within a vertical slotted perforated fishway. The partition 120 includes spaced-apart perforations 121 and vertical slots 122, which can be understood as the openings of the partition 120. Generally, the area of ​​the vertical slot 122 is larger than the area of ​​the perforation 121. The fish guide net 300 is connected to the perforation 121. (Refer to...) Figure 6 and Figure 7 As shown, the fish collection system at the outlet of the vertical slotted fishway also includes a connecting platform 700 and a screen 127. The connecting platform 700 is installed within the main body of the fishway 110 and is positioned corresponding to the submersible hole 121. The connecting platform 700 may have four vertical rods. (Refer to...) Figure 7 and Figure 8 As shown, a steel structure 500 is provided on the side of the connecting platform 700 opposite to the downhole 121. The steel structure 500 has a slot 510 extending in the vertical direction. The steel structure 500 can be composed of two U-shaped structures, as shown in the figure. Figure 9As shown, support rods 310 are provided on both sides of the fish guide net 300. The support rods 310 are used to open the entrance of the fish guide net 300. The support rods 310 are inserted into the slots 510 from top to bottom, thereby fixing the entrance of the fish guide net 300. (Refer to...) Figure 7 As shown, the connecting platform 700 is also equipped with a fish barrier net 710. The fish barrier net 710 is perpendicular to the partition plate 120 and located between the submersible hole 121 and the vertical slit 122. The grid net 127 is located at the vertical slit 122 to prevent fish from passing through the vertical slit 122.

[0050] Reference Figure 4 and Figure 5 As shown, in some embodiments, channel steel 123 is provided on opposite sides of the vertical slit 122. The channel steel 123 is fixed by expansion bolts. The channel steel 123 forms a U-shaped slot 124 extending in the vertical direction. The two sides of the grid 127 are inserted into the U-shaped slot 124 from top to bottom, which can facilitate the disassembly and installation of the grid 127.

[0051] It should be noted that after the fish collection system is installed, it will block debris from passing through the vertical slit 122 inside the fishway body 110. Since the debris is difficult to discharge along the fishway body 110, the fish collection system or the mesh 127 at the vertical slit 122 needs to be cleaned frequently, as per [reference needed]. Figure 1 and Figure 4 As shown, in some embodiments, an operating platform 125 can be provided for both vertical slot fishway and vertical slot submersible fishway. The operating platform 125 is set horizontally, and the operator can stand on the operating platform 125 to install or remove the fish guide net 300 or the fence 127. The operating platform 125 is provided with a second guardrail 126 for protection.

[0052] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0054] In the description of the utility model, unless otherwise expressly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled person in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0055] The utility model has been described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled person in the art without departing from the purpose of the utility model.

Claims

1. A fish collecting system for a vertical slot fishway outlet, applied to a vertical slot fishway including a fishway body and a partition provided in the fishway body, the partition being provided with an aperture, the fishway body having a fishway outlet at an upstream position thereof, characterized in that, The fish collecting system is arranged near the fishway outlet, and the fish collecting system comprises: a fish collecting net box arranged in the fishway body or at the fishway outlet, the fish collecting net box having a fish storage cavity and a fish inlet communicating with the fish storage cavity, and the fish collecting net box being provided with a detachable box cover for exposing or closing the fish storage cavity, the box cover being connected with the fish collecting net box through a zipper structure; a fish guiding net for connecting the hole and the fish inlet, the fish guiding net being connected with the fish inlet through a zipper structure, and the fish guiding net being convenient to detach and install, the fish guiding net being provided with a plurality of horn-shaped one-way fish guiding structures arranged at intervals along the length direction of the fish guiding net, the horn-shaped one-way fish guiding structures gradually decreasing in width from the downstream of the fishway body to the upstream of the fishway body, and the maximum widths of the plurality of horn-shaped one-way fish guiding structures decreasing in turn, so that fish is difficult to escape from the fish guiding net in the downstream direction, and the fish guiding net has a one-way fish guiding effect.

2. A fish collection system for a vertical slot fishway outlet as claimed in claim 1, wherein, The fish collecting system further comprises a floating platform, the floating platform being arranged around the periphery of the fish collecting net box, and the floating platform being provided with a first guardrail.

3. A fish collection system for a vertical slot fishway outlet as claimed in claim 2, wherein, The fish collecting net box is fixed to the floating platform through a steel pipe pile.

4. The vertical slot fishway exit fish collection system of claim 1, wherein, The hole is a vertical slit, the fish guiding net is connected with the vertical slit, and the two sides of the vertical slit are respectively provided with steel structures, the steel structures being provided with clamping grooves extending in the up-down direction, the two sides of the inlet of the fish guiding net being respectively provided with support rods, the support rods being used for supporting the inlet of the fish guiding net, and the support rods being inserted into the clamping grooves from top to bottom to fix the inlet of the fish guiding net.

5. The vertical slot fishway exit fish collection system of claim 1, wherein, The hole comprises a hidden hole and a vertical slit, the fish guiding net is connected with the hidden hole, and the fish collecting system of the vertical slit type fishway outlet further comprises a connecting platform and a grid, the connecting platform being arranged in the fishway body and corresponding to the hidden hole, the side of the connecting platform opposite to the hidden hole being provided with a steel structure, the steel structure being provided with clamping grooves extending in the up-down direction, the two sides of the fish guiding net being respectively provided with support rods, the support rods being used for supporting the inlet of the fish guiding net, the support rods being inserted into the clamping grooves from top to bottom to fix the inlet of the fish guiding net, and the connecting platform being further provided with a fish blocking screen, the fish blocking screen being perpendicular to the partition plate and located between the hidden hole and the vertical slit, and the grid being arranged at the vertical slit to block fish from passing through the vertical slit.

6. A fish collection system for a vertical slot fishway outlet as claimed in claim 5 wherein, The two opposite sides of the vertical slit are respectively provided with channel steels, the channel steels forming U-shaped clamping grooves extending in the up-down direction, and the two sides of the grid being inserted into the U-shaped clamping grooves from top to bottom.

7. A fish collection system for a vertical slot fishway outlet as claimed in claim 4 or 5, characterised in that, The vertical slit is provided with a horizontally arranged operation platform, and the operation platform is provided with a second guardrail.

8. The vertical slot fishway exit fish collection system of claim 1, wherein, The horn-shaped one-way fish guiding structure is provided with a fish guiding inlet at one end close to the hole and a fish guiding outlet at one end close to the fish inlet, the fish guiding inlet and the fish guiding outlet are square, the horn-shaped one-way fish guiding structure comprises a steel pipe frame, a steel reinforcement frame and a fishing net, the steel pipe frame forms the fish guiding inlet, the steel reinforcement frame is used for supporting the fish guiding inlet and the fish guiding outlet, the steel reinforcement frame forms side edges of the horn-shaped one-way fish guiding structure, and the fishing net covers the steel reinforcement frame.

9. A fish collection system for a vertical slot fishway outlet as claimed in claim 8, characterised in that, The ratio of the area of the fish guide outlet to the area of the fish guide inlet is 1 / 9 to 1 / 4.

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