Anti-scouring device for concave bank of river channel curve

Abstract

The utility model discloses a river channel bend concave bank anti-scouring device which comprises a supporting frame, the supporting frame is installed on river embankments on the two sides of a river channel bend and stretches across a river channel, and the supporting frame is connected with a water retaining mechanism through a steel rope. The moving device carries the water retaining mechanism to move, the water retaining mechanism moves to a preset position, and the water flow speed is changed to reduce the impact of water flow on the river channel bend concave bank; a plurality of water retaining mechanisms are arranged on the steel rope at the deep water, and the number of the water retaining mechanisms is reduced along with the shallow water depth; the water retaining mechanism is connected with the support frame through the steel rope, so that the water retaining mechanism and the steel rope are prevented from being damaged by water speed increase or flood, and the service life of the water retaining mechanism is prolonged; gabions are arranged at the bottom of the supporting frame and used for reinforcing the river channel concave bank, reducing impact of water flow on the river channel concave bank and fixing the supporting frame; a plurality of supporting frames can be arranged along the bend of the river channel, the position and the height of the water retaining mechanism can be adjusted according to different concave bank scouring conditions, and the problem of water flow scouring can be solved more flexibly and specifically.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy construction, in particular to a device for preventing scouring of a river bend concave bank. Background Art

[0002] Natural river channels are usually curved, forming concave banks and convex banks at the bends. The concave bank usually refers to the position where the land is concave inward, and the convex bank usually refers to the position where the land is convex outward.

[0003] On a bend, due to the centrifugal force, the surface water flows from the convex bank to the concave bank, and the bottom water flows from the concave bank to the convex bank, forming a lateral circulation. At the concave bank, the water flows from top to bottom with a high flow rate, scouring the concave bank. At present, the anti-scouring of river bends is mainly to reduce the scouring of the concave bank by revetment and increasing the foundation burial depth. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a device for preventing scour of a concave bank in a river bend, including a support frame installed on the riverbanks on both sides of the river bend and across the river, and the support frame is connected to a water retaining mechanism by a steel rope.

[0005] Furthermore, a cavity is provided in the support frame, a moving device is arranged in the cavity, a transverse slide groove is opened in the middle of the cavity, a sliding block is slidably embedded in the slide groove, and the sliding block is connected to the upper end of the steel rope.

[0006] Furthermore, the moving device includes a fixed column, a synchronous belt and a synchronous pulley, the two fixed columns are respectively arranged at the two corners of the lower part of the cavity, the synchronous pulley includes synchronous pulley one, synchronous pulley two, synchronous pulley three and synchronous pulley four, synchronous pulley one and synchronous pulley two are respectively arranged at the left and right corners of the upper part of the cavity, and synchronous pulley three and synchronous pulley four are respectively arranged at the left and right ends of the slider.

[0007] Furthermore, two ends of the synchronous belt are respectively fixed on the fixed columns, and are passed around synchronous pulley three, synchronous pulley one, synchronous pulley two and synchronous pulley four in sequence.

[0008] Furthermore, the slider includes a block-shaped part and a bottom plate adapted to the slide groove, the block-shaped part is embedded in the slide groove and the surface is fixedly connected to the bottom plate, and the side of the bottom plate away from the block-shaped part is rotatably connected to synchronous pulley three and synchronous pulley four, and synchronous pulley three and synchronous pulley four are located at the left and right ends of the bottom plate.

[0009] Furthermore, a winch for winding up the steel rope is arranged between the synchronous pulley three and the synchronous pulley four on the bottom plate, the steel rope connects the winch and the water retaining mechanism, and at least two winches are arranged on the bottom plate.

[0010] Furthermore, the water retaining mechanism is hollow inside and has a plurality of water holes on the peripheral wall. At least one water retaining mechanism is arranged on each steel rope, and the number of water retaining mechanisms increases as the depth of the steel rope immersed in water increases.

[0011] Furthermore, a reduction motor is installed in the support frame, and the reduction motor drives the moving device.

[0012] Furthermore, a gabion is arranged at the bottom of the support frame, and the gabion is used to reinforce the concave bank of the river channel.

[0013] Furthermore, the winch can be remotely controlled via a remote controller.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model discloses a device for preventing scour of a concave bank at a bend of a river. The mobile device carries a water retaining mechanism to move. The water retaining mechanism moves to a preset position, changes the velocity of water flow to reduce the impact of water flow on the concave bank at the bend of the river. A plurality of water retaining mechanisms are arranged on a steel rope in deep water, and the number of the water retaining mechanisms decreases as the water depth becomes shallower. The water retaining mechanism is connected to a support frame through a steel rope to prevent the water retaining mechanism and the steel rope from being damaged when the water velocity increases or a flood occurs, thereby increasing the service life of the water retaining mechanism. A gabion is arranged at the bottom of the support frame, and the gabion is used to reinforce the concave bank of the river, reduce the impact of water flow on the concave bank of the river and fix the support frame. A plurality of support frames can be arranged along the bend of the river, and the position and height of the water retaining mechanism can be adjusted according to different scour conditions of the concave bank, so as to deal with the problem of water flow scour in a more flexible and targeted manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the connection relationship of the mobile device.

[0018] Figure 3 It is a three-dimensional structural diagram of the slider.

[0019] Figure numerals: 1. river channel bend, 2. support frame, 3. steel rope, 4. cavity, 5. water retaining mechanism, 6. fixed column, 7. synchronous belt, 8. synchronous pulley one, 9. synchronous pulley two, 10. synchronous pulley three, 11. synchronous pulley four, 12. slide groove, 13. slider, 14. block part, 15. bottom plate, 16. winch, 17. gabion. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0021] See also Figure 1 , Figure 2 and Figure 3 The utility model proposes a device for preventing scour of a concave bank of a river bend, comprising a support frame 2, wherein the support frame 2 is installed on the riverbanks on both sides of a river bend 1 and spans the river, and the support frame 2 is connected to a water retaining mechanism 5 through a steel rope 3.

[0022] The support frame 2 is higher than the river surface, and a cavity 4 is provided in the support frame 2. An opening is provided at the bottom of the support frame 2, and the cavity 4 is connected to the outside through the opening. A moving device is provided in the cavity 4, and a transverse slide groove 12 is provided in the middle of the cavity 4. A slider 13 is slidably embedded in the slide groove 12. The slider 12 is connected to the upper end of the steel rope 3, and the steel rope 3 passes through the opening at the bottom of the support frame 2 and extends into the water. The end of the steel rope 3 is connected to the water retaining mechanism 5.

[0023] The moving device includes a fixed column 6, a synchronous belt 7 and a synchronous pulley. The two fixed columns 6 are respectively arranged at the two corners of the lower part of the cavity 4. The synchronous pulleys include a synchronous pulley 1 8, a synchronous pulley 2 9, a synchronous pulley 3 10 and a synchronous pulley 4 11. The synchronous pulley 1 8 and the synchronous pulley 2 9 are respectively arranged at the left and right corners of the upper part of the cavity 4. The synchronous pulley 3 10 and the synchronous pulley 4 11 are respectively arranged at the left and right ends of the slider 12. The two ends of the synchronous belt 7 are respectively fixed on the fixed column 6, and pass through the synchronous pulley 3 10, the synchronous pulley 1 8, the synchronous pulley 2 9 and the synchronous pulley 4 11 in sequence.

[0024] The slider 13 includes a block portion 14 and a bottom plate 15 adapted to the slide groove 12. The block portion 14 is embedded in the slide groove 12 and the surface is fixedly connected to the bottom plate 15. Under the action of external force, the slider 13 can slide in the slide groove 12. Specifically, the cross-sectional shape of the slide groove 12 is a trapezoid, the long side of the trapezoid is located inside the side wall of the cavity 4, and the short side of the trapezoid is located on the side wall surface of the cavity 4. The block portion 14 of the slider 13 is a trapezoidal shape adapted to the slide groove 12, which can not only enable the slider 13 to slide in the slide groove 12, but also prevent the slider 13 from escaping from the slide groove 12.

[0025] The surface of the bottom plate 15 away from the block portion 14 is rotatably connected to a synchronous pulley 3 10 and a synchronous pulley 4 11 , and the synchronous pulley 3 10 and the synchronous pulley 4 11 are located at the left and right ends of the bottom plate 15 .

[0026] A winch 16 for winding up the steel rope 3 is arranged between the synchronous pulley 3 10 and the synchronous pulley 4 11 on the bottom plate 15, and the steel rope 3 is connected to the winch 16 and the water retaining mechanism 5, and at least two winches 16 are arranged on the bottom plate 15. Each winch 16 can change the length of the steel rope 3 connected thereto, and the winch 16 can be remotely controlled by a remote controller.

[0027] See also Figure 2The water retaining mechanism 5 is hollow inside, and a plurality of water holes are provided on the peripheral wall. At least one water retaining mechanism 5 is provided on each steel rope 3, and the number of water retaining mechanisms 5 increases as the depth of the steel rope 3 immersed in water increases. The water retaining mechanism 5 may be a cuboid or a cylinder. Specifically, the water retaining mechanism 5 is located under the water surface, and a plurality of water retaining mechanisms 5 are hung on the steel rope 3 in deep water, and the number of water retaining mechanisms 5 decreases as the water depth becomes shallower. When water flows through the water retaining mechanism 5, part of the water flows into the water retaining mechanism 5 and then flows out from the water holes, and the water velocity decreases; when the water velocity increases, the water retaining mechanism 5 pulls the steel rope 3 to tilt along the direction of the water flow, thereby alleviating the force load on the steel rope 3, avoiding damage to the water retaining mechanism 5 and the steel rope 3 due to the increase of the water velocity or the occurrence of a flood, and increasing the service life of the water retaining mechanism 5.

[0028] A reduction motor (not shown) is installed in the support frame 2, and the reduction motor drives the moving device. The output shaft of the reduction motor is fixedly connected and coaxial with the synchronous pulley 2 9, and the reduction motor drives the synchronous pulley 2 9 to rotate, and the transmission is transmitted through the synchronous belt 7.

[0029] The output shaft of the reduction motor drives the synchronous pulley 2 9 to rotate, and the synchronous pulley 2 9 transmits the transmission to the synchronous pulley 1 8 and the synchronous pulley 4 11 through the synchronous belt 7, thereby driving the synchronous pulley 3 10 to rotate. Specifically, the left end of the synchronous belt 7 is fixedly connected to the fixed column 6 on the left side, and then bypasses the synchronous pulley 3 10 from the right side, then bypasses the synchronous pulley 1 8 from the left side, then bypasses the synchronous pulley 2 9 from the right side, and then bypasses the synchronous pulley 4 11 from the left side, and finally the end is fixedly connected to the fixed column 6 on the right side.

[0030] When the synchronous pulley 2 9 rotates clockwise, the synchronous belt 7 drives the synchronous pulley 1 8 to rotate clockwise and drives the synchronous pulley 4 11 to rotate counterclockwise, thereby driving the synchronous pulley 3 10 to rotate counterclockwise, and driving the slider 13 to slide rightward in the slide groove 12.

[0031] In some embodiments, the output shaft of the reduction motor is fixedly connected to and coaxial with the synchronous pulley 8 , and the reduction motor drives the synchronous pulley 8 to rotate and transmits the power through the synchronous belt 7 .

[0032] Start the reduction motor, the synchronous pulley 2 9 rotates, and drives the synchronous pulley 3 10, the synchronous pulley 1 8 and the synchronous pulley 4 11 to rotate through the synchronous belt 7; since the two ends of the synchronous belt 7 are respectively fixed on the fixed column 6, the synchronous pulley 3 10 and the synchronous pulley 4 11 are arranged on the slider 13, when the synchronous pulley 2 9 drives the synchronous belt 7 to move, the slider 13 slides in the slide groove 12.

[0033] A gabion 17 is arranged at the bottom of the support frame 2 , and the gabion 17 is used to reinforce the river bend 1 and fix the support frame 2 , so as to reduce the impact of water flow on the concave bank of the river bend 1 .

[0034] When in use, start the reduction motor, the slider 13 carries the water retaining mechanism 5 to the preset position, and the reduction motor is paused. The water retaining mechanism 5 reduces the water flow rate and reduces the impact of the water flow on the concave bank of the river bend 1; then start the winch 16, and start the winch 16 through the remote controller, adjust the height position of the water retaining mechanism 5 to reach the preset height, and then stop the winch 16.

[0035] In some embodiments, a plurality of support frames 2 may be provided along the river channel, and the position and height of the water retaining mechanism 5 may be adjusted according to different river bank scouring conditions, so as to deal with the water scouring problem more flexibly and specifically.

Claims

1. A device for preventing scour of a concave bank in a river bend, characterized in that: include: A support frame, the support frame is installed on the riverbanks on both sides of the river bend and spans the river, and the support frame is connected to the water retaining mechanism through a steel rope; The support frame is provided with a cavity, a moving device is arranged in the cavity, a transverse slide groove is provided in the middle of the cavity, a slider is slidably embedded in the slide groove, and the slider is connected to the upper end of the steel rope; The moving device includes a fixed column, a synchronous belt and a synchronous pulley, the two fixed columns are respectively arranged at the two corners of the lower part of the cavity, the synchronous pulleys include synchronous pulley 1, synchronous pulley 2, synchronous pulley 3 and synchronous pulley 4, synchronous pulley 1 and synchronous pulley 2 are respectively arranged at the left and right corners of the upper part of the cavity, and synchronous pulley 3 and synchronous pulley 4 are respectively arranged at the left and right ends of the slider; The two ends of the synchronous belt are respectively fixed on the fixed columns, and are passed through synchronous pulley 3, synchronous pulley 1, synchronous pulley 2 and synchronous pulley 4 in sequence; The slider includes a block portion and a bottom plate adapted to the slide groove, the block portion is embedded in the slide groove and the surface is fixedly connected to the bottom plate, and the bottom plate is rotatably connected to a synchronous pulley 3 and a synchronous pulley 4 on a side away from the block portion, and the synchronous pulley 3 and the synchronous pulley 4 are located at the left and right ends of the bottom plate; A winch for winding up the steel rope is arranged between the synchronous pulley 3 and the synchronous pulley 4 on the bottom plate, the steel rope connects the winch and the water retaining mechanism, and at least two winches are arranged on the bottom plate; The water retaining mechanism is hollow inside, and a plurality of water holes are provided on the peripheral wall. At least one water retaining mechanism is arranged on each steel rope, and the number of the water retaining mechanisms increases as the depth of the steel rope immersed in water increases.

2. The anti-scouring device for the concave bank of a river bend according to claim 1, characterized in that: A reduction motor is installed in the support frame, and the reduction motor drives the moving device.

3. The anti-scouring device for the concave bank of a river bend according to claim 1, characterized in that: Gabions are arranged at the bottom of the support frame and are used to reinforce the concave bank of the river channel.

4. The anti-scouring device for the concave bank of a river bend according to claim 1, characterized in that: The winch can be remotely controlled by a remote controller.

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