Fishway concrete finished product protection device

By installing shielding, intercepting, and flow-reducing components on the fishway, the problem of debris accumulation in the fishway was solved, and the safety and efficiency of the fishway were improved.

CN224281193UActive Publication Date: 2026-05-26HEILONGJIANG WATER CONSERVANCY & HYDROPOWER GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG WATER CONSERVANCY & HYDROPOWER GRP CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing fishway lacks top protection measures, which makes it easy for debris such as stones and branches to fall into the river and accumulate, affecting the efficiency of the fishway and interfering with fish migration.

Method used

The design incorporates a protective device for the finished concrete fishway, including shielding components, interception components, and flow reduction components, forming a three-dimensional protection system to intercept debris in the river and ensure smooth water flow.

Benefits of technology

It effectively intercepts debris in the river channel, reduces accumulation inside the fishway, maintains the cleanliness and safety of the fish migration channel, and ensures smooth water flow.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of water conservancy engineering technology, and in particular to a protective device for finished concrete fishway structures. It includes a base and baffles fixedly connected to both sides of the base. A shielding component is installed on the upper side of the two baffles, and the shielding component is fixed to the two baffles by a fixing component. An interception component is provided on the front side of the two baffles, and several flow-reducing components are arranged between the two baffles. This utility model effectively intercepts solid debris such as rocks and branches from the river channel by setting a shielding component on the upper side of the fishway; simultaneously, the interception component blocks floating garbage on the water surface, forming a three-dimensional protection system. Through this dual protection mechanism, the rate of debris entering the channel is reduced, minimizing accumulation inside the fishway from the source. While ensuring smooth water flow, it maximizes the cleanliness and safety of the fish migration channel.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a protective device for finished concrete fish passages. Background Technology

[0002] Fishways are a type of water conservancy engineering facility mainly used to solve the problem of fish migration being blocked by artificial structures such as dams, sluices, and weirs. They are a core component of ecological water conservancy.

[0003] A fishway, as disclosed in Chinese Patent Publication No. CN215518657U, includes a base plate. Vertical left and right walls are provided on the left and right sides of the base plate, respectively. A flow channel for water to pass through is formed between the base plate, the left wall, and the right wall. Multiple first baffle groups and multiple second baffle groups are arranged alternately along the water flow direction within the flow channel. There is a gap between adjacent first baffle groups and second baffle groups. Both the first baffle groups and the second baffle groups are arranged along the width direction of the base plate and respectively form a right vertical slit near the right wall and a left vertical slit near the left wall. The right vertical slit and the left vertical slit are staggered in the water flow direction and both can allow fish to pass through.

[0004] Most existing fishways lack top protection measures, and their open structure makes it easy for debris such as river stones and branches to fall into the interior. Although fishway partitions can guide fish migration, they can also prevent debris from being discharged with the water flow, leading to accumulation and blockage, which affects normal use. Although this can be solved by manual cleaning, it is easy to disturb fish behavior during the fish migration period, and may even cause them to be frightened and escape, thus reducing the efficiency of the fishway. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a protective device for finished fishway concrete.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The design includes a protective device for finished concrete fishway, comprising a base and baffles fixedly connected to both sides of the base. A shielding component is installed on the upper side of the two baffles, and the shielding component is fixed to the two baffles by a fixing component. An interception component is provided on the front side of the two baffles, and a plurality of flow reduction components are provided between the two baffles.

[0008] Furthermore, the current reduction assembly includes a delta seat, one of the baffles having a slot adapted to the delta seat on one side, the delta seat being slidably connected to the slot, and a U-shaped baffle being fixedly connected to one side of the delta seat.

[0009] Furthermore, the current reduction assembly also includes a buffer baffle, and a groove adapted to the buffer baffle is provided on one side of another baffle. The buffer baffle is slidably connected to the groove, and the groove and the slot are respectively located on the opposite surfaces of the two baffles.

[0010] Furthermore, the shielding assembly includes a connecting rod, and a plurality of mounting seats are fixedly connected to the upper ends of both baffles. A connecting rod is fixedly connected between two mounting seats, and a shielding member is provided between two adjacent connecting rods. An outer ring and an inner ring are fixedly connected to both sides of the shielding member, and the shielding member is connected to the connecting rod through the outer ring and the inner ring.

[0011] Furthermore, the interception component includes an interception plate slidably connected to the front end of the two baffles, a plurality of water channels are provided on the end face of the interception plate, and floating balls are fixedly connected to both sides of the interception plate.

[0012] Furthermore, the fixing component includes an L-shaped plate rotatably connected to the mounting base, a fixing plate is fixedly connected to one end of the L-shaped plate, a fixing rod is slidably connected through and to one end of the L-shaped plate, a spring is fixedly connected between the fixing rod and the L-shaped plate, and a hole adapted to the fixing rod is provided on the end face of the mounting base.

[0013] The beneficial effects of the concrete protective device for fishways proposed in this utility model are as follows: By setting a shielding component on the upper side of the fishway, this utility model can effectively intercept solid debris such as rocks and branches falling from the river; at the same time, it can also block floating garbage on the water surface, forming a three-dimensional protection system. Through the dual protection mechanism, the rate of debris entering the channel is reduced, and the accumulation inside the fishway is reduced from the source. While ensuring smooth water flow, it can maintain the cleanliness and safety of the fish migration channel to the greatest extent. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of region A;

[0017] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of region B;

[0018] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of region C.

[0019] In the diagram: 1. Base; 11. Baffle; 12. Slot; 13. Slide; 14. Mounting seat; 2. Shielding assembly; 21. Connecting rod; 23. Shielding component; 24. Outer ring; 25. Inner ring; 3. Fixing assembly; 31. L-shaped plate; 32. Fixing plate; 33. Fixing rod; 34. Spring; 4. Interception assembly; 41. Interception plate; 42. Water channel; 43. Floating ball; 5. Flow reduction assembly; 51. Triangular seat; 52. U-shaped baffle; 53. Buffer baffle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5 The fishway concrete finished product protection device includes a base 1 and baffles 11 fixedly connected to both sides of the base 1. A shielding component 2 is installed on the upper side of the two baffles 11. The shielding component 2 is fixed to the two baffles 11 by a fixing component 3. An interception component 4 is provided on the front side of the two baffles 11. A plurality of flow reduction components 5 are provided between the two baffles 11.

[0022] In this embodiment, the flow reduction component 5 includes a triangular seat 51, and one of the baffles 11 has a slot 12 adapted to the triangular seat 51 on one side. The triangular seat 51 is slidably connected to the slot 12. A U-shaped baffle 52 is fixedly connected to one side of the triangular seat 51. The connection between the triangular seat 51 and the slot 12 increases the stability of the connection, and the U-shaped baffle 52 buffers the incoming water flow. When the water flows through the U-shaped baffle 52, the curvature of the U-shaped baffle 52 creates a backflow effect, thereby reducing the intensity of direct impact and increasing the service life of the U-shaped baffle 52.

[0023] It should be noted that the current reduction component 5 also includes a buffer baffle 53. A groove 13 adapted to the buffer baffle 53 is provided on one side of another baffle 11. The buffer baffle 53 is slidably connected to the groove 13. The groove 13 and the slot 12 are respectively located on the opposite surfaces of the two baffles 11.

[0024] Furthermore, the shielding assembly 2 includes a connecting rod 21. Several mounting seats 14 are fixedly connected to the upper ends of the two baffles 11. A connecting rod 21 is fixedly connected between the two mounting seats 14. A shielding member 23 is provided between two adjacent connecting rods 21. An outer ring 24 and an inner ring 25 are fixedly connected to both sides of the shielding member 23, respectively. The shielding member 23 is connected to the connecting rod 21 through the outer ring 24 and the inner ring 25. The shielding member 23 is hung between the two connecting rods 21 through the outer ring 24 and the inner ring 25, and the shielding members 23 are arranged apart. The inner ring 25 and the outer ring 24 of two adjacent shielding members 23 can be hung together on the same connecting rod 21.

[0025] The interception component 4 includes an interception plate 41 slidably connected to the front end of the two baffles 11. Several water channels 42 are provided on the end face of the interception plate 41. Floating balls 43 are fixedly connected to both sides of the interception plate 41. The interception plate 41 and the baffles 11 are slidably connected by a guide rail slider. The floating balls 43 move the interception plate 41 up and down to adapt to different water levels at different times.

[0026] Furthermore, the fixing component 3 includes an L-shaped plate 31 rotatably connected to the mounting base 14. A fixing plate 32 is fixedly connected to one end of the L-shaped plate 31. A fixing rod 33 is slidably connected to the upper side of one end of the L-shaped plate 31. A spring 34 is fixedly connected between the fixing rod 33 and the L-shaped plate 31. A hole adapted to the fixing rod 33 is opened on the end face of the mounting base 14. By pulling the fixing rod 33, the fixing plate 32 and the blocking member 23 are made to fit together. Then, the fixing rod 33 is released, and the fixing rod 33 is reset by the spring 34. After that, the fixing rod 33 is inserted into the hole. Through the engagement of the fixing rod 33 with the hole, the L-shaped plate 31 cannot be flipped, thereby fixing the blocking member 23.

[0027] Operating method: During operation, place the base 1 and baffle 11 in the pre-prepared position, then install the flow reduction component 5 and the interception component 4 with the baffle 11 and cover the shielding component 2. After that, fix the shielding component 2 with the fixing component 3 and it is ready to use. During the fish migration, you only need to clean the debris on the shielding component 2 and the interception component 4. After the fish migration is over, you can open the fixing component 3 and remove the shielding component 2 to clean the inside of the baffle 11.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective device for finished fishway concrete, comprising a base (1) and baffles (11) fixedly connected to both sides of the base (1), characterized in that: A shielding component (2) is installed on the upper side of the two baffles (11). The shielding component (2) is fixed to the two baffles (11) by a fixing component (3). An interception component (4) is provided on the front side of the two baffles (11). A plurality of flow reduction components (5) are provided between the two baffles (11).

2. The protective device for finished fishway concrete as described in claim 1, characterized in that: The current reduction assembly (5) includes a triangular seat (51), one of the baffles (11) has a slot (12) adapted to the triangular seat (51) on one side, the triangular seat (51) is slidably connected to the slot (12), and a U-shaped baffle (52) is fixedly connected to one side of the triangular seat (51).

3. The protective device for finished fishway concrete as described in claim 2, characterized in that: The current reduction assembly (5) also includes a buffer baffle (53). A groove (13) adapted to the buffer baffle (53) is provided on one side of another baffle (11). The buffer baffle (53) is slidably connected to the groove (13). The groove (13) and the slot (12) are respectively located on the opposite surfaces of the two baffles (11).

4. The protective device for finished fishway concrete as described in claim 1, characterized in that: The shielding assembly (2) includes a connecting rod (21). Several mounting seats (14) are fixedly connected to the upper ends of the two baffles (11). The connecting rod (21) is fixedly connected between the two mounting seats (14). A shielding component (23) is provided between two adjacent connecting rods (21). An outer ring (24) and an inner ring (25) are fixedly connected to the two sides of the shielding component (23). The shielding component (23) is connected to the connecting rod (21) through the outer ring (24) and the inner ring (25).

5. The protective device for finished fishway concrete as described in claim 1, characterized in that: The interception component (4) includes an interception plate (41) slidably connected to the front end of the two baffles (11). Several water channels (42) are provided on the end face of the interception plate (41), and floating balls (43) are fixedly connected to both sides of the interception plate (41).

6. The protective device for finished fishway concrete as described in claim 4, characterized in that: The fixing component (3) includes an L-shaped plate (31) rotatably connected to the mounting base (14). A fixing plate (32) is fixedly connected to one end of the L-shaped plate (31). A fixing rod (33) is slidably connected to the upper side of one end of the L-shaped plate (31). A spring (34) is fixedly connected between the fixing rod (33) and the L-shaped plate (31). A hole adapted to the fixing rod (33) is opened on the end face of the mounting base (14).