A permeable lattice fish nest row member

Abstract

The utility model provides a kind of fish nest row component of air-permeable grating, including frame structure, the frame structure is provided with baffle, the baffle is separated into multiple hollow chambers by fish nest row frame body;The frame structure is provided with at least two first through holes in the direction of water flow, the baffle is provided with second through hole in the direction of water flow, the first through hole of the upstream frame structure is equipped with hole-plugging structure, when water flow is big, it can be washed away and the silt in chamber by hole-plugging structure being washed off, by being equipped with first through hole on frame structure, second through hole is set on baffle, hole-plugging structure is set in first through hole, when water flow is relatively small, hole-plugging structure and frame structure form a closed buffer area, it is favorable for fish habitat, when water flow impact force is greater than torsional spring elastic force, water flow can wash away hole-plugging structure, so that the silt in the inside of frame structure is taken away.

Description

Technical Field

[0001] This utility model relates to the technical field of fish nest arrays, and in particular to a permeable grid fish nest array component. Background Technology

[0002] Artificial fish nests are widely used as an important ecological restoration measure to repair damaged river ecosystems. These structures are designed to simulate the natural riverbed environment, providing breeding, habitat, and shelter for aquatic organisms such as fish. Currently, most mainstream artificial fish nest structures adopt a reinforced concrete frame combined with internal partitions.

[0003] While the existing patent (CN212393610U) employs a permeable grid design to promote water exchange, its core structure (fixed grid openings) cannot effectively address the dynamic removal of sediment within the chamber. During long-term operation, especially in sandy rivers or specific river sections, sediment accumulation is unavoidable, becoming a key bottleneck restricting the long-term effective ecological function of this type of fishpond.

[0004] Therefore, there is an urgent need to develop a new type of permeable grid fish nest raft component that can effectively solve the problem of siltation inside the cavity while retaining the core function of providing habitat for fish, achieving "self-cleaning" or "easy silt removal", thereby improving the long-term ecological benefits of the fish nest raft and reducing maintenance costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a permeable grid fish nest row component to solve the problem of sand accumulation in the fish nest row chamber.

[0006] To solve the above-mentioned technical problems, this utility model provides a permeable grid fish nest assembly component, including a frame structure. The frame structure is provided with a partition, which divides the fish nest frame into multiple hollow chambers. The frame structure has at least two first through holes in the direction of water flow, and the partition has a second through hole in the direction of water flow. An elastically rotatable plug structure is provided at the first through hole upstream of the frame structure. When the impact force of the water flow is greater than the rebound force of the plug structure, the water flow can break through the plug structure and wash away the mud and sand in the chamber.

[0007] In a preferred embodiment, the hole-blocking structure includes a mounting base installed on one side of the frame structure, a rotary shaft rotatably mounted on the mounting base, a hole-blocking plate fixed on the rotary shaft, and a torsion spring fitted on the rotary shaft, with one arm of the torsion spring fixing the inner side of the frame structure and the other arm fixing the lower side of the hole-blocking plate.

[0008] In a preferred embodiment, the first through hole and the second through hole are on a straight line, and the size of the second through hole is not smaller than that of the first through hole.

[0009] In a preferred embodiment, a plugging structure is also provided at the first through hole downstream of the frame structure.

[0010] In a preferred embodiment, hanging rings are provided at the four corners of the fish nest frame.

[0011] In a preferred embodiment, the fish nest structure is a reinforced concrete structure.

[0012] The beneficial effects of this utility model are as follows: by providing a first through hole on the frame structure, a second through hole on the partition, and a plugging structure at the first through hole, when the water flow is relatively small, the plugging structure and the frame structure form a closed buffer zone, which is conducive to fish habitat. When the water flow impact force is greater than the torsion spring force, the water flow can break through the plugging structure, thereby carrying away the mud and sand inside the frame structure. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Fig. 1 This is a top sectional view of an embodiment of the present invention;

[0015] Fig. 2 This is a side view of an embodiment of the present invention;

[0016] Fig. 3 This is a structural diagram of the torsion spring in the free state according to an embodiment of this utility model.

[0017] Reference numerals: Frame structure 11; First through hole 111; Partition plate 12; Second through hole 121; Lifting ring 13; Plug structure 2; Mounting base 21; Rotary shaft 22; Plug plate 23; Torsion spring 24. Detailed Implementation

[0018] Please see Figs. 1-3 As shown, this application provides a technical solution: a permeable grid fish nest assembly, including a frame structure 11, a partition 12 is provided inside the frame structure 11, the partition 12 divides the fish nest frame into multiple hollow chambers; the frame structure 11 is provided with at least two first through holes 111 in the direction of water flow, the partition 12 is provided with a second through hole 121 in the direction of water flow, and a plugging structure 2 that can be elastically rotated is provided at the first through hole 111 upstream of the frame structure 11. When the impact force of the water flow is greater than the rebound force of the plugging structure 2, the water flow can break through the plugging structure 2 and thus flush away the mud and sand in the chamber.

[0019] In a preferred embodiment, the hole-blocking structure 2 includes a mounting base 21 mounted on one side of the frame structure 11, a rotary shaft 22 rotatably mounted on the mounting base 21, a hole-blocking plate 23 fixed on the rotary shaft 22 for hole blocking, and a torsion spring 24 fitted on the rotary shaft 22. One arm of the torsion spring 24 fixes the inner side of the frame structure 11, and the other arm fixes the lower side of the hole-blocking plate 23.

[0020] The water flow impact force can be measured in water using a pressure sensor with the same area as the first through hole 111. It can be measured under various conditions, such as light rain, moderate rain, and heavy rain. The elastic force of the torsion spring 24 is determined according to the magnitude of the water flow impact force, and can be taken under moderate rain conditions. The specific value can be found by multiple experiments to find the optimal value.

[0021] The blocking plate 23 and the mounting base 21 form a hinged structure, allowing the blocking plate 23 to rotate around the mounting base 21. When the water flow is small, the blocking plate 23 blocks the first through hole 111 under the action of the torsion spring 24. The first through hole 111 and the second through hole 121 form a water flow channel. When the water flow is large, the impact force of the water flow is greater than the elastic force of the torsion spring 24, which can break through the blocking structure 2. At this time, the water flow can flow through the first through hole 111 and the second through hole 121, thus carrying away the mud and sand in the chamber.

[0022] In a preferred embodiment, the first through hole 111 and the second through hole 121 are on a straight line, and the size of the second through hole 121 is not smaller than that of the first through hole 111.

[0023] For example, if the first through hole 111 is 10cm, the second through hole 121 can be 12cm to meet the size requirements.

[0024] The first through hole 111 and the second through hole 121 are on a straight line, which can reduce the speed of the water flowing into the frame structure 11, thereby carrying away more silt.

[0025] In a preferred embodiment, a plugging structure 2 is also provided at the first through hole 111 downstream of the frame structure 11.

[0026] In this way, the water flow above the frame structure 11 will not flow out from the first through hole 111 downstream. Thus, setting the plugging structure 2 downstream and the plugging structure 2 upstream can form a local slow flow inside the frame structure 11, reducing the water flow velocity inside the frame structure 11.

[0027] In a preferred embodiment, lifting rings 13 are provided at the four corners of the fish nest frame. The lifting rings 13 facilitate lowering the structure from above. During placement, the first through hole 111 should be aligned with the direction of water flow, and the plugging structure 2 should also be oriented in the same direction.

[0028] In a preferred embodiment, the fish nest structure is a reinforced concrete structure.

[0029] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A permeable grid fish nest assembly component, characterized in that, The system includes a frame structure (11), which is equipped with a partition (12) that divides the fish nest frame into multiple hollow chambers. The frame structure (11) has at least two first through holes (111) in the direction of water flow, and the partition (12) has a second through hole (121) in the direction of water flow. A plugging structure (2) that can be flexibly rotated is provided at the first through hole (111) upstream of the frame structure (11). When the impact force of the water flow is greater than the rebound force of the plugging structure (2), the water flow can break through the plugging structure (2) and thus flush away the mud and sand in the chamber.

2. The permeable grille fish nest assembly according to claim 1, characterized in that: The hole-blocking structure (2) includes a mounting base (21) installed on one side of the frame structure (11), a rotary shaft (22) rotatably mounted on the mounting base (21), a hole-blocking plate (23) fixed on the rotary shaft (22), and a torsion spring (24) fitted on the rotary shaft (22). One arm of the torsion spring (24) is fixed to the inner side of the frame structure (11), and the other arm is fixed to the lower side of the hole-blocking plate (23).

3. A permeable grille fish nest assembly according to claim 1, characterized in that: The first through hole (111) and the second through hole (121) are on a straight line, and the size of the second through hole (121) is not smaller than that of the first through hole (111).

4. A permeable grid fish nest assembly according to claim 2, characterized in that: A plugging structure (2) is also provided at the first through hole (111) downstream of the frame structure (11).

5. A permeable grille fish nest assembly according to claim 1, characterized in that: The fish nest frame is equipped with hanging rings (13) at the four corners.

6. A permeable grille fish nest assembly according to claim 5, characterized in that: The fish nest structure is a reinforced concrete structure.

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