Adjustable vertical seam type fishway structure

Abstract

The utility model discloses an adjustable vertical seam type fishway structure which comprises a U-shaped fishway groove, a plurality of baffles are arranged in the fishway groove, every two adjacent baffles are parallel and alternately fixed to the side wall of the fishway groove, vertical seams are reserved in the unfixed sides of the baffles, notches which are staggered with each other are formed in every two adjacent baffles, and the vertical seams are arranged in the U-shaped fishway groove. The notch is provided with an adjusting plate which is vertically adjusted through an adjusting mechanism, and the baffle is further provided with a water level and water flow sensor 4. According to the vertical seam type fishway structure, the notch is additionally arranged on the basis of an original vertical seam structure, the size of the notch can be adjusted through the adjustable baffle, and therefore fish schools can efficiently pass through the vertical seam type fishway structure in the migration peak period.

Description

TECHNICAL FIELD

[0001] The utility model relates to fish passing facilities field of hydraulic engineering, especially a kind of adjustable vertical slit type fishway structure. BACKGROUND

[0002] Vertical slit type fishway is a kind of specially designed fishway, mainly used to help fish overcome the migration obstacles caused by dam, hydropower station and other buildings, and its design feature is to form vertical slit from top to bottom in fishway tank using baffle, and water flow is discharged from vertical slit. In the prior art, although the vertical slit width between baffles can be adjusted to adjust the flow rate of water flow at different time periods, the resistance can be reduced, but in the peak season of fish migration, only relying on vertical slit fish passing can cause fish crowding, and the fish passing efficiency is low, so a vertical slit type fishway structure with high fish passing efficiency is needed. SUMMARY

[0003] The utility model aims at providing a kind of adjustable vertical slit type fishway structure which can realize the efficient passing of fish group in the peak period of migration.

[0004] Technical scheme: to achieve the above-mentioned purpose, the utility model discloses a kind of adjustable vertical slit type fishway structure, including U-shaped fishway tank, multiple baffles are arranged in fishway tank, adjacent baffles are parallel and are alternately fixed on the side wall of fishway tank, vertical slit is left on the side of baffle not fixed, slot is arranged on the adjacent baffle and is staggered, adjusting plate is arranged on the slot and is vertically adjusted by adjusting mechanism, water level and water flow sensor are further arranged on the baffle.

[0005] Among them, the adjusting mechanism includes motor, gear, rack or toothed belt, the output end of motor drives rack or toothed belt through gear, and the back of rack or toothed belt is fixed with adjusting plate through guide column.

[0006] Among them, the first sliding slot for moving adjusting plate up and down is opened on the baffle on the both sides of slot, and the second sliding slot for moving guide column is opened on one side of first sliding slot.

[0007] Among them, a recyclable and extensible rubber folding shell is sleeved on the adjusting plate, the bottom of rubber folding shell is opened and sealed and fixed at the bottom of first sliding slot, and sealing port for extending guide column is opened on the upper part of rubber folding shell.

[0008] Among them, the adjusting mechanism includes winch, winch includes motor and winding drum of steel wire rope, one end of steel wire rope is fixed on the upper end of adjusting plate, motor drives winding drum to rotate and wind or release steel wire rope, to adjust adjusting plate.

[0009] Among them, the winch is arranged above baffle or in the area without water on one side of baffle.

[0010] Beneficial effects: The present invention has the following advantages: The vertical slit fishway structure of the present invention adds a slot on the basis of the original vertical slit structure, and the size of the slot can be adjusted by an adjustable baffle, thereby enabling fish to pass through efficiently during the peak migration period. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure;

[0012] Figures 2-4 This is a schematic diagram of the baffle structure. Detailed Implementation

[0013] The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings.

[0014] like Figure 1 As shown, the vertical slotted fishway structure includes a U-shaped fishway channel 1, with multiple baffles 2 installed inside the channel 1. Adjacent baffles 2 are parallel and alternately fixed to the side wall of the channel 1. A vertical slot is left on the side of the baffle 2 that is not fixed, thereby forming an S-shaped flow path for the water in the channel 1. The fishway channel 1 and the baffles 2 can be made of concrete.

[0015] To facilitate fish migration from downstream to upstream, the fish passage 1 can be installed at an angle, meaning the inlet of the fish passage 1 is lower than the outlet.

[0016] Adjacent baffles 2 have staggered slots, and vertically adjustable adjustment plates 3 are provided on the slots to open and close them. In addition, baffles 2 are also equipped with water level and flow sensors 4 to detect water level and flow rate, and the adjustment plate 3 is further adjusted by the adjustment mechanism 5.

[0017] The adjusting mechanism 5 includes a motor, gears, racks, or toothed belts. The motor output drives the rack or toothed belt via gears. The back of the rack or toothed belt is fixed to the adjusting plate 3 via guide posts, enabling the adjusting plate 3 to move up and down. Furthermore, the motor can be installed inside a sealed box, with a slip ring at the motor output end to achieve sealing.

[0018] The specific structure of the adjusting mechanism 5 and its installation structure with the baffle 2 are as follows: Figures 2-4 As shown, the baffle 2 has a first sliding groove on both sides of the slot to allow the adjusting plate 3 to move up and down. A second sliding groove is provided on one side of the first sliding groove to allow the guide post to move. This facilitates the movement of the rack or toothed belt in the first sliding groove by the movement of the guide post in the second sliding groove during transmission.

[0019] An installation groove is provided on the outer side of the second slide to facilitate the fixing of the adjustment mechanism 5.

[0020] In order to further increase the height of the maximum opening of the notch, the height of the adjusting plate 3 needs to be reduced, and a recyclable and expandable rubber folding shell 6 is sleeved on the adjusting plate 3, which is similar to a bellows, and the height of the rubber folding shell 6 is greater than the maximum moving distance of the adjusting plate 3. The bottom of the rubber folding shell 6 is open and sealed at the bottom of the first sliding groove, and the upper part is provided with a sealed opening extending out of the guide column. During the upward movement of the adjusting plate 3, the adjusting plate 3 can drive the rubber folding shell 6 to expand upward, and during the downward movement of the adjusting plate 3, the adjusting plate 3 can drive the rubber folding shell 6 to be recycled downward, so that the height of the adjusting plate 3 when moving to the bottom end can be reduced, and the height of the notch can be increased. The use of the rubber folding shell 6 can also further protect the adjusting plate 3 from corrosion.

[0021] The utility model further provides another adjusting mechanism 5 scheme, including winch, winch includes motor and winding steel wire rope's reel, steel wire rope one end is fixed in the upper end of adjusting plate 3, and motor drives reel rotation winding or release steel wire rope, to realize the traction of adjusting plate 3. Winch can be erected above the baffle 2 or the area of one side without water, if necessary, can use the roller to guide the steel wire rope, to overcome the problem of winch under water seal.

[0022] Under the above structure, the fish population can not only pass through the vertical seam, but also pass through the notch when the water level rises and the flow rate increases. The opening size of the notch is adjusted based on the monitoring of the sensor 4 to achieve efficient passage of the fish population during the migration peak period.

Claims

1. An adjustable vertical slot fishway structure, comprising a U-shaped fishway channel (1), wherein multiple baffles (2) are provided inside the fishway channel (1), adjacent baffles (2) are parallel and alternately fixed to the side wall of the fishway channel (1), and a vertical slot is left on the side of the baffle (2) that is not fixed, characterized in that, The adjacent baffles (2) are provided with staggered slots, and the slots are provided with adjustment plates (3) that can be vertically adjusted by adjustment mechanism (5). The baffles (2) are also provided with water level and water flow sensors (4).

2. The adjustable vertical slot fishway structure according to claim 1, characterized in that, The adjustment mechanism (5) includes a motor, gear, rack or toothed belt. The output end of the motor drives the rack or toothed belt through the gear. The back of the rack or toothed belt is fixed to the adjustment plate (3) through the guide post.

3. The adjustable vertical slot fishway structure according to claim 2, characterized in that, The baffle (2) has a first vertical sliding groove on both sides of the slot to allow the adjusting plate (3) to move up and down, and a second sliding groove for the guide post to move on one side of the first sliding groove.

4. The adjustable vertical slot fishway structure according to claim 3, characterized in that, The adjusting plate (3) is fitted with a recyclable and extendable rubber folding shell (6). The bottom of the rubber folding shell (6) is open and sealed to the bottom of the first slide groove. The upper part of the rubber folding shell (6) has a sealing port for extending the guide post.

5. The adjustable vertical slot fishway structure according to claim 1, characterized in that, The adjustment mechanism (5) includes a winch, which includes a motor and a drum for winding steel wire rope. One end of the steel wire rope is fixed to the upper end of the adjustment plate (3). The motor drives the drum to rotate and wind or release the steel wire rope to adjust the adjustable plate (3).

6. The adjustable vertical slot fishway structure according to claim 5, characterized in that, The winch is installed above or to one side of the baffle (2) in an area where there is no water.

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