Ecological dam body structure beneficial to fish migration

Abstract

The utility model discloses an ecological dam body structure beneficial to fish migration, which comprises a dam body, migration channels are arranged in the dam body at certain intervals, the migration channels are communicated with the upstream side and the downstream side of the dam body in the width direction of the dam body, and an ecological fish reef formed by ecological bricks is laid on at least one side of each migration channel; the ecological brick comprises a prismatic brick body, a cavity vertically penetrating through the center of the brick body is formed in the middle of the brick body, a plurality of fish luring structures are clamped and fixed in the cavity through clamping pieces, and the arrangement direction of the fish luring structures is perpendicular to the center line of the cavity. The artificial ecological fish reef formed by splicing the ecological bricks is laid in the migration channel, an environment beneficial to survival and playing of fishes is formed to induce the fishes to migrate, and compared with the prior art, migrated fishes are protected, the ecological protection effect is improved, and the ecological environment can be better protected and restored.

Description

Technical Field

[0001] The utility model relates to the technical field of waterway regulation, and specifically designs an ecological dam structure which is beneficial to fish migration. Background Art

[0002] Migration is a specialized form of fish movement. Many fish habitually migrate upstream along rivers to spawn and reproduce. The distance of this migration varies by species, with some species traveling thousands of kilometers in search of suitable conditions and specific spawning sites. With the development of society, awareness of environmental protection and ecological restoration is growing. However, existing dam structures can damage the aquatic environment and significantly hinder fish migration.

[0003] Therefore, how to transform the dam structure to facilitate fish migration and improve ecological protection effects has become a problem that needs to be considered and solved by those skilled in the art. Utility Model Content

[0004] The utility model provides an ecological dam structure which is beneficial to fish migration. By opening a migration channel on the dam body and laying ecological fish reefs in the migration channel, it is beneficial to achieve migratory fish protection, improve ecological protection effects, and better protect and restore the ecological environment.

[0005] An ecological dam structure that facilitates fish migration includes a dam body, wherein migration channels are provided at regular intervals in the dam body, the migration channels connecting the upstream side and the downstream side of the dam body in the width direction of the dam body, and an ecological fish reef composed of ecological bricks is laid on at least one side of the migration channel;

[0006] The ecological brick includes a prismatic brick body, a cavity vertically penetrating the center of the brick body, and a plurality of fish attracting structures are clamped and fixed in the cavity by clamping members. The arrangement direction of the fish attracting structures is perpendicular to the center line of the cavity.

[0007] Furthermore, two limiting members are formed on the top of the brick body, and the distance between the two limiting members is not less than the distance between two adjacent cavities.

[0008] Furthermore, the distance between the two limiting members increases from bottom to top.

[0009] Furthermore, the limiting member has a trapezoidal structure, and the size of its bottom is adapted to the size of the brick body.

[0010] Furthermore, through holes communicating with the cavity are provided around the brick body, and the clamping member is fixed on the inner wall of the through hole.

[0011] Furthermore, a reinforcement beam is formed at the center of at least two of the via holes that are arranged opposite to each other.

[0012] Furthermore, the via hole is one of a circular hole, a triangular hole, and a square hole.

[0013] Furthermore, the fish-luring structure includes a central column, a support tube, a support frame and a biofilm. The support tube is sleeved on the outside of the central column. The central column and the inner wall of the support tube are connected by the support frame, and the biofilm is covered on the outer wall of the support tube.

[0014] Beneficial effects:

[0015] Under the premise of not affecting the regulation effect and the stability of the dam body, the utility model chooses to open a migration channel on the dam body to increase the connectivity of the fish habitat in order to reduce the impact of the regulation building on the fish habitats of the nearby river section ecosystem; the dam body with the migration channel has both ecological effect and regulation effect, which can ensure that the channel regulation function is not affected, and the hydrological and geomorphological conditions around the dam body are more conducive to the habitat of fish and plankton behind the dam body; at the same time, an artificial ecological fish reef composed of ecological bricks is laid in the migration channel, which can utilize the organic matter, nutrients and other nutrient matrices carried by the ecological bricks to form an attracting effect on bait organisms such as phytoplankton and zooplankton, thereby forming an environment conducive to the survival and play of fish to induce fish to migrate. Compared with the existing technology, the protection of migratory fish is achieved, the ecological protection effect is improved, and the ecological environment can be better protected and restored. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 is a schematic structural diagram of the ecological fish reef;

[0019] Figure 4 It is a structural diagram of eco-brick;

[0020] Figure 5 This is a side view of the eco-brick;

[0021] Figure 6 This is a top view of the eco-brick;

[0022] Figure 7 It is a structural diagram of the fish attracting structure. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0024] like Figure 1-Figure 7 As shown, this embodiment proposes an ecological dam structure that is conducive to fish migration, including a dam body 1 with a width that gradually decreases from bottom to top, and a migration channel 2 is arranged at a certain interval in the dam body 1. The migration channel 2 connects the upstream side and the downstream side of the dam body 1 in the width direction of the dam body 1. The lower edge of the inlet end of the migration channel 2 is located below the water surface, and an ecological fish reef 3 composed of ecological bricks 31 is laid on at least one side of the migration channel 2. The ecological bricks 31 are distributed in an array to reduce the difficulty of construction.

[0025] This embodiment increases the connectivity of fish habitats by opening a migratory channel on the dam body 1; the dam body with the migratory channel 2 has both ecological and regulation effects, which can ensure that the channel regulation function is not affected, and the hydrological and geomorphological conditions around the dam body are more conducive to the habitat of fish and plankton behind the dam body.

[0026] like Figure 3-Figure 6 As shown, the eco-brick 31 includes a prismatic brick body 311, and a cavity 312 vertically running through the center of the brick body 311 is formed in the middle of the brick body 311. Two fish-attracting structures 314 are clamped and fixed in the cavity 312 by clamping members 313, and the setting direction of the fish-attracting structures 314 is perpendicular to the center line of the cavity 312.

[0027] This embodiment opens a cavity 312 in the brick body 311 to facilitate water flow, and at the same time clamps and fixes a fish-attracting structure 314 in the cavity 312 by a clamping member 313. The organic matter, nutrient salts and other nutrient matrices carried by the fish-attracting structure 314 can be used to form an attracting effect on bait organisms such as phytoplankton and zooplankton, thereby forming an environment conducive to the survival and play of fish in the cavity 312 to induce fish to migrate. Compared with the existing technology, the protection of migratory fish is achieved, the ecological protection effect is improved, and the ecological environment can be better protected and restored.

[0028] In this example, two limiting members 315 are formed on the top of the brick body 311 , and the distance between the two limiting members 315 is greater than or equal to the distance between two adjacent cavities 312 .

[0029] By setting the limiting member 315, the ecological bricks 31 can be connected in series when the ecological fish reef 3 is formed by splicing the ecological bricks 31, and then the ecological bricks 31 can be locked with each other, making the overall structure of the ecological fish reef 3 more stable.

[0030] Preferably, the distance between the two limiting members 315 increases from bottom to top.

[0031] By adopting such a design, the size of the limiting groove formed between the two limiting members 315 can decrease from top to bottom, so that when the ecological fish reef 3 is formed by splicing the ecological bricks 31, the upper ecological brick 31 can be guided to fall into the limiting groove, thereby helping to speed up the construction efficiency of the ecological fish reef 3.

[0032] Furthermore, the limiting member 315 has a trapezoidal structure that is smaller at the top and larger at the bottom, and the size of its bottom is adapted to the size of the brick body 311 .

[0033] With such a design, when the ecological fish reef 3 is formed by splicing the ecological bricks 31 together, the trapezoidal structure can guide the lower limiting member 315 to extend into the cavity 312, thereby helping to speed up the construction efficiency of the ecological fish reef 3.

[0034] In this example, in order to increase the water flow area of ​​the brick body 311 and reduce the dead weight of the ecological device 31 for easy lifting and installation, through holes 316 connected to the cavity 312 are opened around the brick body 311, and the clamping member 313 is fixed on the inner wall of the through hole 316; in addition, in order to avoid the influence of the opening of the through hole 316 on the overall structural strength of the brick body 311, a reinforcing beam 317 is formed at the center of two of the oppositely arranged through holes 316, and the length direction of the reinforcing beam 317 is consistent with the setting direction of the fish attracting structure 314, so as to minimize the impact on the area of ​​the fish migration channel.

[0035] In this example, the through hole 316 is a square hole, so as to facilitate the integral casting of the brick body 311 , thereby reducing the difficulty of implementation and the processing cost.

[0036] During specific implementation, the ecological bricks 31 are formed in one step to facilitate prefabrication; they have a light weight, are easy to lift and install; have a large internal space, and are highly adaptable to fish schools; and can be used to create ecological fish nests to rebuild fish habitats in underwater sheltered areas, and to improve underwater slope protection and footings of buildings.

[0037] See attached Figure 7 The fish-attracting structure 314 includes a central column a, a support tube b, a support frame c and a biofilm d. The support tube b is sleeved on the outside of the central column a. The central column a and the inner wall of the support tube b are connected by the support frame c. The biofilm d is covered on the outer wall of the support tube b. The biofilm d contains bait microorganisms, nutrients and protective agents.

[0038] The organic matter, nutrients and other nutrient matrices carried by the fish attracting structure 314 form an attracting effect on bait organisms such as phytoplankton and zooplankton, thereby forming an environment conducive to the survival and play of fish to induce fish to migrate. Compared with the existing technology, it realizes the protection of migratory fish, improves the ecological protection effect, and can better protect and restore the ecological environment.

[0039] Working principle:

[0040] Under the premise of not affecting the regulation effect and the stability of the dam body, in order to reduce the impact of the regulation buildings on the fish habitats of the nearby river ecosystem, the utility model chooses to open a migration channel on the dam body to increase the connectivity of the fish habitat; the dam body with the migration channel 2 has both ecological effects and regulation effects, which can not only ensure that the channel regulation function is not affected, but also be beneficial to the habitat of fish and plankton behind the dam body, weaken the complex flow state, reduce the water flow velocity, and help fish avoid dangerous water flow conditions; the ecological fish reef 3 is set in the migration channel 2 to provide bacterial productivity, adsorb organisms and sediments, build a good "living room" for fish and help attract fish schools, serve as a hidden shelter, and improve the survival rate of young fish.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. An ecological dam structure that is beneficial to fish migration, comprising a dam body (1), characterized in that: Migration channels (2) are provided at regular intervals in the dam body (1), the migration channels (2) connecting the upstream side and the downstream side of the dam body (1) in the width direction of the dam body (1), and an ecological fish reef (3) composed of ecological bricks (31) is laid on at least one side of the migration channel (2); The ecological brick (31) comprises a prismatic brick body (311), a cavity (312) vertically penetrating the center of the brick body (311) is formed in the middle of the brick body (311), and a plurality of fish attracting structures (314) are clamped and fixed in the cavity (312) by clamping members (313), and the arrangement direction of the fish attracting structures (314) is perpendicular to the center line of the cavity (312).

2. The ecological dam body (1) structure that is beneficial to fish migration according to claim 1 is characterized in that: Two limiting members (315) are formed on the top of the brick body (311), and the distance between the two limiting members (315) is not less than the distance between two adjacent cavities (312).

3. The ecological dam body (1) structure that is beneficial to fish migration according to claim 2 is characterized in that: The distance between the two limiting members (315) increases from bottom to top.

4. The ecological dam body (1) structure that is beneficial to fish migration according to claim 3 is characterized in that: The limiting member (315) is in a trapezoidal structure, and the size of its bottom is adapted to the size of the brick body (311).

5. The ecological dam body (1) structure that is beneficial to fish migration according to claim 1 is characterized in that: A through hole (316) communicating with the mold cavity (312) is also provided around the brick body (311), and the clamping member (313) is fixed on the inner wall of the through hole (316).

6. The ecological dam body (1) structure that is beneficial to fish migration according to claim 5 is characterized in that: A reinforcing beam (317) is formed at the center of at least two of the via holes (316) that are arranged opposite to each other.

7. The ecological dam body (1) structure that is beneficial to fish migration according to claim 5 is characterized in that: The through hole (316) is one of a circular hole, a triangular hole, and a square hole.

8. The ecological dam body (1) structure that is beneficial to fish migration according to any one of claims 1 to 7 is characterized in that: The fish attracting structure (314) includes a central column (a), a support tube (b), a support frame (c) and a biofilm (d), wherein the support tube (b) is sleeved on the outside of the central column (a), the central column (a) and the inner wall of the support tube (b) are connected by the support frame (c), and the biofilm (d) is covered on the outer wall of the support tube (b).

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