阅读说明：本技术 合页式拦鱼栅 (Hinge type fish blocking fence ) 是由 李孝兵 王宏杰 于 2021-08-31 设计创作，主要内容包括：本发明公开了合页式拦鱼栅,包括位于水库溢洪道内的第一格栅、第二格栅和连杆,以及位于溢洪道两侧的支架、第一吊绳和第二吊绳。第一格栅和第二格栅“合页式”铰接,夹角变化范围在120°～300°之间,折成“倒V”型置于溢洪道底时顶部高出洪水位。本发明在溢洪道泄洪时,通过操作第一吊绳和第二吊绳的升降来调整第一格栅和第二格栅的高度角度,使装置能够在拦鱼的同时泄放垃圾。(The invention discloses a hinge type fish blocking fence which comprises a first grating, a second grating and a connecting rod which are positioned in a spillway of a reservoir, and a bracket, a first lifting rope and a second lifting rope which are positioned at two sides of the spillway. The first grating and the second grating are hinged, the change range of the included angle is 120-300 degrees, and the top is higher than the flood level when the first grating and the second grating are folded into an inverted V shape and placed at the bottom of the spillway. When the spillway discharges flood, the height angles of the first grating and the second grating are adjusted by operating the lifting of the first lifting rope and the second lifting rope, so that the device can block fish and discharge garbage at the same time.)

1. The hinge type fish blocking fence comprises a first grating (21), a second grating (22) and a connecting rod (3) which are positioned in a spillway (1), and a bracket (13), a first lifting rope (14) and a second lifting rope (15) which are positioned on two sides of the spillway.

2. First (21) and second (22) grids according to claim 1, characterized by: the first grating and the second grating are hinged with the shaft sleeve (52) through hinge shafts (51), the change range of an included angle is 120-300 degrees, the first grating and the second grating are as wide as the spillway (1), and the top of the first grating and the top of the second grating are higher than the flood level when the first grating and the second grating are folded into an inverted V shape and are placed at the bottom of the spillway.

3. First (21) and second (22) grids according to claim 1, characterized by: the first and second grids are composed of shaft sleeves (52), longitudinal grid sheets (53), upper cross beams (54) and lower cross beams (55).

4. The connecting rod (3) of claim 1, wherein: the connecting rods are a pair and symmetrically positioned at two sides of the spillway (1), one end of each connecting rod is hinged with the fixed shaft (12) on the side wall (11), and the other end of each connecting rod is hinged with the end part of the lower cross beam (55) of the first grid (21).

5. The stand (13) according to claim 1, characterized in that: the pair of supports are symmetrically arranged at two sides of the spillway (1), and a first pulley (14) and a second pulley (15) are arranged on the supports.

6. First and second lifting cords (41, 42) according to claim 1, characterized in that: the first lifting rope and the second lifting rope are a pair and are symmetrically arranged on two sides of the spillway (1), one end of the first lifting rope is connected with the first pulley (14), the other end of the first lifting rope is connected with one end of the hinge shaft (51), one end of the second lifting rope is connected with the second pulley (15), and the other end of the second lifting rope is connected with the end part of the lower cross beam (55) of the second grid (22).

7. The first grid (21), the second grid (22), the connecting rod (3), the bracket (13), the first lifting rope (41) and the second lifting rope (42) according to claim 1, wherein: the first grating, the second grating, the connecting rod and the bracket are made of steel, and the first lifting rope and the second lifting rope are made of steel wires.

8. Bushing (52) according to claim 2, characterized in that: the shaft sleeves are arranged along the axial line at intervals in a segmented mode, so that the shaft sleeves of the first grating (21) and the second grating (22) are mutually staggered and wedged into an axial line.

9. The longitudinal grid segments (53) of claim 3, wherein: the space between the longitudinal grating pieces is smaller than the size of the fish to be blocked, the longitudinal grating pieces are in a circular arc shape at the hinge shaft (51), the centers of circles are the same as the center of a shaft, and the longitudinal grating pieces are connected with the arranged shaft sleeves (52), and the intervals of the shaft sleeves are suspended.

Technical Field

The invention belongs to the field of hydraulic engineering, relates to a reservoir spillway, and particularly relates to a fish blocking fence of the reservoir spillway.

Background

The reservoir generally has fish culture and has obvious economic benefits, but when the reservoir discharges flood, a part of fish can be lost along with the downward discharge of flood, and in order to reduce the loss, the invention and the application of a fish blocking facility are provided, as shown in patent CN 201410177457X-movable fish blocking device for the flood discharge of reservoir dam. At present most fish blocking facilities can not effectively separate rubbish and fish in the water, or block rubbish when blocking the fish, cause the flood barrier, or release rubbish and put away the fish simultaneously, can not avoid fishery loss, if have one kind can effectively separate the fish blocking bars of rubbish and fish in the water, just can solve this problem well.

Disclosure of Invention

The invention aims to provide a hinge type fish blocking fence which can effectively separate garbage and fish in water when a reservoir floods, so that the garbage is discharged to the downstream while the fish is blocked, the flood barrier is reduced, and the culture loss is avoided.

The invention is realized by the following technical scheme:

the hinge type fish blocking fence comprises a first grating, a second grating and a connecting rod which are positioned in a spillway, and a bracket, a first lifting rope and a second lifting rope which are positioned on two sides of the spillway.

The first grating and the second grating are hinged with the shaft sleeve in a hinge mode through hinge shafts, the change range of an included angle is 120-300 degrees, the first grating and the second grating are as wide as the spillway, and the top of the first grating and the top of the second grating are higher than the flood level when the first grating and the second grating are folded into an inverted V shape and placed at the bottom of the spillway.

The first grating and the second grating are composed of shaft sleeves, longitudinal grating pieces, an upper cross beam and a lower cross beam.

The distance between the longitudinal grating pieces is smaller than the size of the fish to be blocked.

The shaft sleeves are arranged along the axial line at intervals in a segmented mode, so that the shaft sleeves of the first grating and the second grating are matched with one axial line in a staggered mode.

The longitudinal grating pieces are in an arc shape at the hinge shaft, the centers of circles are the same as the center of a circle, and are connected with the arranged shaft sleeves (52), and the intervals of the shaft sleeves are suspended.

The connecting rods are a pair and symmetrically positioned at two sides of the spillway, one end of each connecting rod is hinged with a fixed shaft on the side wall of the spillway, and the other end of each connecting rod is hinged with the end part of the lower cross beam of the first grid.

The bracket is a pair of brackets, which are symmetrically arranged at two sides of the spillway, and a first pulley and a second pulley are arranged on the brackets.

The first lifting rope and the second lifting rope are in a pair and are symmetrically arranged on two sides of the spillway, one end of the first lifting rope is connected with the first pulley, the other end of the first lifting rope is connected with the end part of the hinge shaft, one end of the second lifting rope is connected with the second pulley, and the other end of the second lifting rope is connected with the end part of the lower cross beam of the second grid.

The first grating, the second grating, the hinge shaft, the connecting rod, the fixing shaft and the support are made of steel materials, and the first lifting rope and the second lifting rope are made of steel wires.

When the fish blocking fence provided by the invention is used for preventing the reservoir from flooding, the first grating and the second grating are suspended above the water surface, so that the fish blocking fence is convenient to maintain. When the reservoir discharges flood, the first grid and the second grid are folded into an inverted V shape and fall to the bottom plate of the spillway, and the top of the spillway is higher than the flood level, so that fish can not pass through the first grid. When the first grating blocks rubbish after a period of flood discharge, the second grating bottom beam is lifted to the water outlet surface, the hinge shaft is lowered to the bottom of the spillway, rubbish and fish in water are intercepted by the second grating, then the second grating is lifted to the upstream side in an inclined mode to the water outlet surface, the fish on the grating slides into the water by adjusting the inclination of the second grating, most of rubbish is still left on the second grating, the second grating bottom beam is lowered to the bottom of the spillway, the rubbish on the second grating is flushed to the downstream by the flood, and separation of the fish and the rubbish is completed.

Compared with the prior art, the invention has the beneficial effects that: can conveniently separate fish and rubbish in the water, make to block the fish effect better, the flood discharge influence is littleer.

Drawings

FIG. 1 is a side view of a first grill of the present invention blocking fish;

FIG. 2 is a side view of the second grill of the present invention blocking fish;

FIG. 3 is a side view of the second grid of the present invention as it is being lifted out of the water;

FIG. 4 is a side view of the present invention when not in use;

FIG. 5 is a front view of the first grill of the present invention blocking fish;

FIG. 6 is a side view of the grid hinge of the present invention in a separated position;

FIG. 7 is a partial side view of the inventive grid at a 120 ° included angle;

FIG. 8 is a partial side view of the inventive grid at a 300 included angle;

fig. 9 is a partial top view of the inventive grille at a 180 ° included angle.

In the figure: 1-spillway, 11-side wall, 12-fixed shaft, 13-bracket, 14-first pulley, 15-second pulley, 21-first grid, 22-second grid, 3-connecting rod, 41-first lifting rope, 42-second lifting rope, 51-hinge shaft, 52-shaft sleeve, 53-longitudinal grid sheet, 54-upper beam and 55-lower beam.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in the fig. 1-9, the hinge type fish blocking fence has a spillway clear width of 5.0m, a side wall height of 2.5m, a spillway water depth of 1.5m, a first grating and a second grating both having a height of 2.3m and a thickness of 0.2m, and an inverted V-shaped fish blocking height of 1.7m and a connecting rod length of 3.5 m.

Preferably, the fixed shaft 12 is fixed on the side wall 11 at a position higher than the flood level.

Preferably, the first grating and the second grating are made of steel plates, square tubes and round tubes, and are manufactured and preassembled in a factory, the thickness of the longitudinal grating pieces is 5mm, and the distance between the longitudinal grating pieces is 5 cm.

Preferably, the connecting rod is made of steel pipes, the support is a steel frame, and the lifting rope is a steel wire rope.

Preferably, the hoisting equipment adopts an automatically controlled electric winch system.

The working process in this embodiment:

when the reservoir is not flooded, the first grid and the second grid are suspended above the water surface, and maintenance is facilitated. When the reservoir discharges flood, the first grid and the second grid are folded into an inverted V shape and are arranged at the bottom of the spillway, and the top of the spillway is higher than the flood level, so that fish cannot pass through the first grid. When the first grid blocks garbage after a period of flood discharge, the second lifting ropes are operated to lift the lower cross beam of the second grid to go out of the water surface, the hinge shafts are lowered to the bottom of the spillway by the first lifting ropes, so that the garbage and fish in the water are blocked on the second grid, the first lifting ropes and the second lifting ropes are operated simultaneously to lift the second grid to go upstream to the water surface in an inclined mode, the fish slide into the water by adjusting the inclination of the second grid, most of the garbage is still left on the second grid, the lower cross beam of the second grid is lowered to the bottom of the spillway, and at the moment, the garbage on the second grid is flushed to the downstream by the flood, so that the separation of the fish and the garbage is completed. The sequence of operations is a loop from fig. 1 → fig. 2 → fig. 3 → fig. 1. When the reservoir meets flood exceeding the design standard, the grids are all lifted out of the water surface, fish blocking is avoided, and maximum flood discharge of the reservoir is guaranteed.

The above embodiment is a preferred implementation of the specific specification of the present invention, and is not intended to limit the present invention, and any simple modification, equivalent replacement, and improvement made according to the technical spirit of the present invention are within the protection scope of the present invention without departing from the concept of the present invention.