Floating object blocking device for dam and using method of floating object blocking device

Abstract

The invention discloses a floating object blocking device for a dam and a using method thereof.The floating object blocking device comprises the dam and a floating object blocking mechanism arranged on one side of the dam, the dam comprises a dam body, a water inlet of a rectangular structure is formed in the center of the interior of the dam body, and a filter plate is arranged in the water inlet; the top of the filter plate extends to the position above the top of the dam body and is in sliding connection with the dam body. The device has the advantages that the filter plate is convenient to replace, the filter plate is automatically cleaned and floating objects are efficiently treated, the power motor drives the two-way screw rod to adjust the height of the lifting plate, the two-way screw rod is synchronously driven by combining the rotating shaft and the chain transmission system, the coordination of the system is ensured, and the eccentric rod mechanism drives the dredging plate to clean the filter plate to prevent blockage; the combination of the double-shaft motor and the third electric push rod can flexibly adjust the opening size of the floating object collecting net to adapt to different water flow conditions and floating object distribution conditions, and due to the design, the flexibility and efficiency of the system are improved, and the daily maintenance work is simplified.

Description

Technical Field

[0001] The present invention relates to the field of water conservancy technologies, and specifically to a floating object blocking device for a dam and a using method thereof. Background Art

[0002] The floating object blocking device used for a dam generally refers to a system for intercepting floating garbage, wood and other substances in a river or a reservoir. Such a device is of great significance for protecting hydraulic structures, ensuring the safe operation of a hydropower station and maintaining the environment.

[0003] For the existing floating object blocking device, reference can be made to the Chinese utility model patent with the patent publication number of CN217150119U, which discloses a floating object cleaning device for the water inlet of a water conservancy and hydropower dam, including a dam body. An inlet is dug inside the dam body. A baffle is arranged in front of the inlet. A filter screen is fixedly connected to the bottom end of the baffle. Floating blocks are fixedly connected to both ends of the baffle. In this utility model, by arranging the baffle and the collection box, the baffle is arranged on the water surface and is solid. The filter screen at the lower end of the baffle is arranged at the inlet, so that when the water flow passes through the inlet of the dam body, the floating objects on the water surface can be blocked outside the inlet by the baffle. Moreover, the cross section of the baffle is semi-circular arc, so that the blocked floating objects can move into the collection box under the impact of the water flow, which is convenient for collecting the floating objects. After that, rotate the threaded rod, the threaded rod drives the slider to move, and the slider drives the collection box to move upward, which is convenient for cleaning the floating objects.

[0004] The above device has a good use effect, but there are still some defects in actual use: First, the filter screen is fixedly arranged at the bottom end of the baffle. Since the filter screen is fixed and directly contacts various sundries in the water flow, including those with sharp edges and corners (such as tree branches, plastic fragments, etc.), it is very easy to be cut or damaged after long-term use. This not only affects the function of the filter screen, but also may lead to frequent replacement or maintenance. Second, the position of the collection box in the above device is relatively fixed when collecting floating objects, so it can only collect floating objects in a specific area, which means that the floating objects in the water flow may not always be accurately brought to the position where the collection box is located. Especially when the distribution of the floating objects is uneven or the water flow direction and speed change, some floating objects may not be effectively collected. Summary of the Invention

[0005] The purpose of the present invention is to provide a floating object blocking device for a dam and its usage method, which has the advantages of being convenient for replacing the filter plate, automatically cleaning the filter plate, and efficiently processing floating objects. The height of the lifting plate is adjusted by a power motor driving a bidirectional lead screw, and the bidirectional lead screw is synchronously driven by combining a rotating shaft and a chain drive system to ensure the coordination of the system. The eccentric rod mechanism drives the dredging plate to clean the filter plate to prevent blockage. The combination of a double-shaft motor and a third electric push rod can flexibly adjust the opening size of the floating object collection net to adapt to different water flow conditions and floating object distribution situations. This design not only improves the flexibility and efficiency of the system but also simplifies the daily maintenance work.

[0006] To achieve the above object, the present invention provides the following technical solution: A floating object blocking device for a dam, including a dam and a floating object blocking mechanism arranged on one side thereof. The dam includes a dam body. A rectangular water inlet is excavated in the center of the dam body. A filter plate is arranged inside the water inlet, and the top of the filter plate extends above the top of the dam body and is slidably connected thereto:

[0007] The floating object blocking mechanism includes a lifting plate slidably arranged on one side of the water inlet end of the dam body. A horizontally arranged bidirectional lead screw is rotatably connected to the top of one side of the water inlet end of the dam body. Both the left and right ends of the bidirectional lead screw are rotatably connected to mounting plates. One side of the two mounting plates is fixedly connected to one side of the top of the dam body. One end of the bidirectional lead screw extends outside one of the mounting plates and is fixedly connected to the output shaft of a power motor. The power motor is fixedly installed on the outside of one of the mounting plates. Threaded sleeves are threadedly connected to both the left and right sides of the surface of the bidirectional lead screw. A horizontal limiting rod is fixedly connected between the two mounting plates close to each other. The horizontal limiting rod is located above the bidirectional lead screw, and the horizontal limiting rod is slidably connected to the two threaded sleeves.

[0008] As a preferred floating object blocking device for a dam of the present invention, vertical chutes are correspondingly opened on both the left and right sides of the water inlet end of the dam body. Both the left and right ends of the side of the lifting plate close to the water inlet end of the dam body are fixedly connected with sliders, and the two sliders respectively extend into the two chutes and are slidably connected thereto. An opening adapted to the water inlet is opened in the center of the top of the dam body. A U-shaped frame is arranged inside the water inlet, and the top of the U-shaped frame extends above the top of the dam body and is slidably connected thereto.

[0009] Preferably, as a floating object blocking device for a dam according to the present invention, installation cavities are correspondingly formed on the left and right sides inside the dam body. At the bottom of the inner walls of the two installation cavities, a first electric push rod is fixedly connected. The movable rods of the two first electric push rods extend above the top of the dam body and are slidably connected thereto. A fixed connection is formed between the telescopic ends at the tops of the two first electric push rods and the left and right sides of the top of the U-shaped frame. Vertical card slots are formed on the left and right sides of the inner wall of the U-shaped frame. A filter plate is slidably connected inside the U-shaped frame. Blocks are fixedly connected to the left and right sides of the filter plate. The two blocks are respectively clamped with the two card slots. A handle is fixedly connected to the center of the top of the filter plate.

[0010] Preferably, as a floating object blocking device for a dam according to the present invention, at the bottom of each of the two screw sleeves, a second electric push rod arranged obliquely is rotatably connected. The telescopic ends at the bottoms of the two second electric push rods are rotatably connected to the left and right sides of the top of the lifting plate. Vertical plates are fixedly connected to the left and right sides of the bottom of the lifting plate. A horizontally arranged round rod is fixedly connected between the bottoms of the two vertical plates. U-shaped frames are rotatably connected to the left and right sides of the surface of the round rod. The left and right sides of the round rod are located inside the two U-shaped frames. The included angle between the two vertical plates and the two U-shaped frames is 90°. A rotational connection is formed between the top of the vertical plate and the side of the U-shaped frame away from the round rod.

[0011] Preferably, as a floating object blocking device for a dam according to the present invention, a plurality of first hooks arranged at equal intervals are fixedly connected to the side of the lifting plate away from the dam body. A plurality of second hooks arranged at equal intervals are fixedly connected to the side of the U-shaped frame close to the lifting plate. A floating object collection net is installed between the plurality of first hooks and the plurality of second hooks. Obliquely arranged sliding sleeves are rotatably connected to the outer left and right ends of the side of the U-shaped frame away from the round rod. Obliquely arranged sliding rods are rotatably connected to the left and right ends of the top of the vertical plate. The ends of the two sliding rods away from the vertical plate extend into the two sliding sleeves and are slidably connected thereto. An elastic cord is installed at the open end of the floating object collection net. A plurality of hanging rings are sewn at equal intervals on the surface of the elastic cord. The plurality of hanging rings are respectively hung with the plurality of first hooks and the plurality of second hooks.

[0012] Preferably, as a floating object blocking device for a dam according to the present invention, obliquely arranged connecting rods are rotatably connected to the top surfaces of the two sliding sleeves. The ends of the two connecting rods away from the sliding sleeves are fixedly connected to third electric push rods. The ends of the two third electric push rods away from the connecting rods are slidably connected to the left and right sides of the top of the lifting plate. A positioning frame is fixedly connected to the top of the lifting plate. Vertical grooves are formed in the left and right sides of the positioning frame in the vertical direction. Lifting threaded rods are rotatably connected to the left and right sides inside the positioning frame. The bottoms of the two lifting threaded rods are rotatably connected to the left and right sides of the top of the lifting plate.

[0013] Preferably, as a floating object blocking device for a dam according to the present invention, a positioning shell is fixedly connected to the top of the positioning frame. The upper parts of the two lifting threaded rods extend into the positioning shell and are rotatably connected thereto. Worms are fixedly sleeved on the surfaces of the two lifting threaded rods located inside the positioning shell. Worms are meshed and connected to one side of each of the two worms. A dual-axis motor is provided at the center inside the positioning shell. The bottom of the dual-axis motor is fixedly connected to the center of the top of the positioning frame. Output shafts on both sides of the dual-axis motor are fixedly connected with worms. Threaded sleeves are threadedly connected to the inner surfaces of the two lifting threaded rods located inside the positioning frame. Lifting limit rods are fixedly connected between the left and right sides of the top of the lifting plate and the top of the inner wall of the positioning frame. The lifting limit rods are slidably connected to the threaded sleeves. Fixing rods are fixedly connected to one side of each of the two threaded sleeves away from each other. The ends of the two fixing rods away from the threaded sleeves extend to the left and right sides outside the positioning frame and are slidably connected to the inner walls of the vertical grooves. The ends of the fixing rods away from each other are rotatably connected to inclined third electric push rods. The telescopic ends of the bottoms of the two third electric push rods are rotatably connected to the ends of the connecting rod away from the sliding sleeve.

[0014] Preferably, as a floating object blocking device for a dam according to the present invention, a rotating shaft is rotatably connected to one side of the dam body. A sprocket is fixedly sleeved on the surface of the end of the rotating shaft away from the dam body. The end of the bidirectional lead screw away from the power motor extends to the outside of the other mounting plate and is fixedly sleeved with a sprocket. The same chain is meshed and connected between the two sprockets. A disc is fixedly connected to the end of the rotating shaft away from the dam body. An eccentric rod is fixedly connected to the side of the disc away from the rotating shaft. A displacement frame with horizontal displacement is slidably connected to the surface of the side of the disc away from the rotating shaft. The end of the eccentric rod away from the disc extends to the outside of the displacement frame and is slidably connected to the inner wall thereof. A baffle is fixedly connected to the end of the eccentric rod away from the disc. A displacement block is fixedly connected to one side of the bottom of the displacement frame. A horizontally arranged slide rail is fixedly connected to one side of the dam body. The end of the displacement block away from the displacement frame extends into the slide rail and is slidably connected thereto. A dredging plate is provided on the side of the filter plate away from the lifting plate. A plurality of dredging rods arranged at equal intervals are fixedly connected to the side of the dredging plate close to the dam body. The plurality of dredging rods are adapted to the filter holes on the surface of the filter plate and are slidably connected to the inner walls of the filter holes. An L-shaped rod is fixedly connected to one side of the displacement frame. The end of the L-shaped rod away from the displacement frame is fixedly connected to one side of the dredging plate.

[0015] A method for using a floating object blocking device for a dam is specifically as follows:

[0016] S1: Start the power motor to drive the bidirectional lead screw to rotate. The power motor drives the lead screw sleeve to move axially along the bidirectional lead screw, thereby adjusting the height of the lifting plate so that it is located at the optimal interception position;

[0017] S2: The rotating shaft synchronously drives the bidirectional lead screw through the sprocket and chain to ensure the coordination of the entire system. Start the rotating shaft, and the disc rotates accordingly, driving the eccentric rod to move. The eccentric rod drives the displacement frame to perform a horizontal reciprocating motion, and then drives the dredging plate and the dredging rod thereon to clean the filter plate through the L-shaped rod to prevent the filter holes from being blocked;

[0018] S3: Start the double-shaft motor to drive the worm gears on both sides of the output shafts to rotate synchronously. The worm gears drive the two worm wheels meshing with them to rotate simultaneously, so that the two lifting screw rods arranged on the inner walls of the worm wheels start to rotate synchronously. As the lifting screw rods rotate, the thread sleeves on their surfaces will move up or down along the surfaces of the lifting screw rods. At the same time, start the third electric push rod to extend or contract. Through the cooperation of the fixed rod and the vertical groove, drive the sliding sleeve to slide up and down along the surface of the sliding rod, thereby adjusting the angle between the lifting plate and the U-shaped frame and changing the opening size of the floating object collection net;

[0019] S4: When it is necessary to clean the floating object collection net, first turn off the power motor and the double-shaft motor to stop the adjustment of the lifting plate and the floating object collection net. Use the hanging ring on the elastic rope to quickly disassemble the floating object collection net, remove the collection net from the first hook and the second hook, and clean or replace it. After cleaning, re-hang the floating object collection net on the first hook and the second hook to ensure its correct installation.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. When the operator needs to adjust the opening size of the floating object collection net in the present invention, the operator can start the double-shaft motor. After the double-shaft motor starts, it drives the worm gears on both sides of the output shafts to rotate synchronously. When the worm gears rotate synchronously, they drive the two worm wheels meshing with them to rotate simultaneously. When the two worm wheels rotate simultaneously, the two lifting screw rods arranged on the inner walls of the two worm wheels start to rotate synchronously. When the two lifting screw rods rotate synchronously, they drive the thread sleeves on their surfaces to move up or down along the surfaces of the lifting screw rods at the same time. At the same time, the third electric push rod can be started to extend or contract. When the thread sleeve moves up or down along the surface of the lifting screw rod, it drives the sliding sleeve to slide up and down along the surface of the sliding rod through the cooperation of the third electric push rod, the vertical groove and the fixed rod, thereby adjusting the angle between the lifting plate and the U-shaped frame to adjust the opening size of the floating object collection net to achieve the best floating object collection effect.

[0022] 2. In the present invention, a driving motor drives a bidirectional lead screw to rotate, driving a lead screw sleeve to move axially along the bidirectional lead screw. Since the lead screw sleeve is connected to the lifting plate, the lifting plate can move up and down along the sliding grooves on both sides of the dam and be adjusted to a suitable position to intercept floating objects. The sprocket on the rotating shaft is connected to the sprocket on the bidirectional lead screw through a chain, realizing synchronous rotation of the rotating shaft to drive the rotation of the bidirectional lead screw. As the rotating shaft rotates, the eccentric rod on the disc drives the displacement frame to perform a horizontal reciprocating motion, and the displacement block at the bottom of the displacement frame slides within the slide rail to ensure smooth movement. The L-shaped rod fixed on one side of the displacement frame is connected to the dredging plate. When the displacement frame moves horizontally, the dredging plate and the dredging rods thereon reciprocally clean the filter plate to prevent the filter holes from being blocked by debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional view of the present invention;

[0024] Figure 2 is a side view of the present invention;

[0025] Figure 3 is a structural schematic diagram of the present invention;

[0026] Figure 4 is a structural schematic diagram of the dam of the present invention;

[0027] Figure 5 is a structural schematic diagram of the lifting plate of the present invention;

[0028] Figure 6 is a structural schematic diagram of the positioning frame of the present invention;

[0029] Figure 7 is an enlarged view of A of the present invention;

[0030] Figure 8 is a structural schematic diagram of the floating object collection net of the present invention;

[0031] Figure 9 is a structural schematic diagram of the dredging plate of the present invention.

[0032] In the figure: A, dam; B, floating object blocking mechanism; 1, dam body; 101, installation cavity; 102, chute; 103, first electric push rod; 2, water inlet; 3, U-shaped frame; 301, card slot; 4, filter plate; 401, card block; 402, handle; 5, lifting plate; 501, slider; 6, bidirectional lead screw; 601, mounting plate; 7, power motor; 8, lead screw sleeve; 9, horizontal limiting rod; 10, second electric push rod; 11, vertical plate; 12, round rod; 13, U-shaped frame; 14, sliding sleeve; 15, sliding rod; 16, connecting rod; 17, third electric push rod; 18, positioning frame; 180, vertical groove; 19, lifting threaded rod; 20, positioning shell; 21, worm gear; 22, worm; 23, double-shaft motor; 24, threaded sleeve; 240, fixed rod; 25, lifting limiting rod; 26, first hook; 27, second hook; 28, floating object collection net; 280, elastic cord; 281, hanging ring; 29, rotating shaft; 30, sprocket; 31, chain; 32, disc; 33, eccentric rod; 330, baffle; 34, displacement frame; 340, displacement block; 35, slide rail; 36, L-shaped rod; 37, dredging plate; 38, dredging rod. Detailed implementation mode

[0033] Please refer to Figures 1-9 , a floating object blocking device for a dam, including a dam A and a floating object blocking mechanism B arranged on one side thereof. The dam A includes a dam body 1. A rectangular water inlet 2 is dug in the center of the dam body 1. A filter plate 4 is arranged inside the water inlet 2. The top of the filter plate 4 extends above the top of the dam body 1 and is slidably connected thereto:

[0034] Furthermore, the floating object blocking mechanism B includes a lifting plate 5 slidably arranged on one side of the water inlet end of the dam body 1. A horizontally arranged bidirectional lead screw 6 is rotatably connected to the top of one side of the water inlet end of the dam body 1. Both the left and right ends of the bidirectional lead screw 6 are rotatably connected to a mounting plate 601. A side of the two mounting plates 601 is fixedly connected to one side of the top of the dam body 1. One end of the bidirectional lead screw 6 extends outside one mounting plate 601 and is fixedly connected to the output shaft of a power motor 7. The power motor 7 is fixedly installed outside one of the mounting plates 601. Threaded sleeves 8 are threadedly connected to both the left and right sides of the surface of the bidirectional lead screw 6. A horizontal limiting rod 9 is fixedly connected between the two mounting plates 601 close to each other. The horizontal limiting rod 9 is located above the bidirectional lead screw 6. The horizontal limiting rod 9 is slidably connected to the two threaded sleeves 8.

[0035] The core part of Dam A is the dam body 1, with a rectangular inlet 2 dug in its center. A filter plate 4 is provided inside the inlet 2 to preliminarily filter the water flowing into the dam body 1. A lifting plate 5 is slidably arranged on one side of the water inlet end of the dam body 1 and can be moved up and down as needed to adjust the blocking position. A bidirectional lead screw 6 is horizontally arranged and located at the top of the water inlet end of the dam body 1. Both ends are fixed to the dam body 1 through mounting plates 601. One end is connected to a power motor 7 for driving the bidirectional lead screw 6 to rotate. Threaded sleeves 8 are threadedly connected to both the left and right sides of the surface of the bidirectional lead screw 6. The threaded sleeves 8 move along the axial direction of the bidirectional lead screw 6 as it rotates. A horizontal limiting rod 9 is fixed between the two mounting plates 601 and is located above the bidirectional lead screw 6, serving to limit the threaded sleeves 8 to move only in a straight line direction.

[0036] Further, vertical chutes 102 are correspondingly opened on both the left and right sides of the water inlet end of the dam body 1. Both the left and right ends of the side of the lifting plate 5 close to the water inlet end of the dam body 1 are fixedly connected with sliders 501. The two sliders 501 respectively extend into the two chutes 102 and are slidably connected thereto. An opening adapted to the inlet 2 is opened at the center of the top of the dam body 1. A U-shaped frame 3 is provided inside the inlet 2. The top of the U-shaped frame 3 extends above the top of the dam body 1 and is slidably connected thereto.

[0037] The sliders 501 respectively extend into the two chutes 102 and are slidably connected thereto, which ensures that the lifting plate 5 can maintain stability when moving up and down and can be precisely adjusted along a predetermined trajectory.

[0038] Further, installation cavities 101 are correspondingly opened on both the left and right sides inside the dam body 1. At the bottom of the inner walls of the two installation cavities 101, first electric push rods 103 are fixedly connected. The movable rods of the two first electric push rods 103 extend above the top of the dam body 1 and are slidably connected thereto. Fixed connections are made between the top telescopic ends of the two first electric push rods 103 and the left and right sides of the top of the U-shaped frame 3. Vertical card slots 301 are opened on both the left and right sides of the inner wall of the U-shaped frame 3. A filter plate 4 is slidably connected inside the U-shaped frame 3. Both the left and right sides of the filter plate 4 are fixedly connected with clamping blocks 401. The two clamping blocks 401 are respectively engaged with the two card slots 301. A handle 402 is fixedly connected to the center of the top of the filter plate 4.

[0039] Installation cavities 101 are correspondingly opened on both the left and right sides inside the dam body 1, and a first electric push rod 103 is fixedly connected to the bottom of the inner wall of each installation cavity 101. The movable rods of the two first electric push rods 103 extend above the top of the dam body 1 and are slidably connected thereto, ensuring that they can move up and down smoothly. Fixed connections are made between the top telescopic ends of the two first electric push rods 103 and the left and right sides of the top of the U-shaped frame 3, so that the lifting of the U-shaped frame 3 can be realized by controlling the first electric push rods 103.

[0040] Vertical card slots 301 are provided on both the left and right sides of the inner wall of the U-shaped frame 3 in the vertical direction. Clamping blocks 401 are fixedly connected to both the left and right sides of the filter plate 4. The clamping blocks 401 are respectively clamped with the card slots 301 on the U-shaped frame 3 to ensure the stability and detachability of the filter plate 4 within the U-shaped frame 3. A handle 402 is fixedly connected to the center of the top of the filter plate 4, facilitating the installation, disassembly, and maintenance of the filter plate 4 by the operator.

[0041] Furthermore, the bottom of each of the two screw sleeves 8 is rotatably connected to an inclined second electric push rod 10. The telescopic ends of the bottoms of the two second electric push rods 10 are rotatably connected to the left and right sides of the top of the lifting plate 5. Vertically arranged vertical plates 11 are fixedly connected to the left and right sides of the bottom of the lifting plate 5. A horizontally arranged round rod 12 is fixedly connected between the bottoms of the two vertical plates 11. The left and right sides of the surface of the round rod 12 are rotatably connected to a U-shaped frame 13. The left and right sides of the round rod 12 are located inside the two U-shaped frames 13. The included angle between the two vertical plates 11 and the two U-shaped frames 13 is 90°. The top of the vertical plate 11 is rotatably connected to the side of the U-shaped frame 13 away from the round rod 12.

[0042] The telescopic end of the bottom of the second electric push rod 10 is rotatably connected to the left and right sides of the top of the lifting plate 5, enabling the lifting plate 5 to not only move in the vertical direction but also achieve a certain angle adjustment through the telescoping of the second electric push rod 10. The left and right sides of the surface of the round rod 12 are rotatably connected to a U-shaped frame 13, and the left and right sides of the round rod 12 are located inside the two U-shaped frames 13, allowing the U-shaped frame 13 to rotate around the round rod 12. The top of the vertical plate 11 is rotatably connected to the side of the U-shaped frame 13 away from the round rod 12, ensuring that the U-shaped frame 13 can be flexibly adjusted in position.

[0043] Furthermore, a plurality of first hooks 26 arranged at equal intervals are fixedly connected to the side of the lifting plate 5 away from the dam body 1. A plurality of second hooks 27 arranged at equal intervals are fixedly connected to the side of the U-shaped frame 13 close to the lifting plate 5. A floating object collection net 28 is installed between the plurality of first hooks 26 and the plurality of second hooks 27. The outer left and right ends of the side of the U-shaped frame 13 away from the round rod 12 are rotatably connected to inclined sliding sleeves 14. The left and right ends of the top of the vertical plate 11 are rotatably connected to inclined sliding rods 15. The ends of the two sliding rods 15 away from the vertical plate 11 extend into the two sliding sleeves 14 and are slidably connected thereto. An elastic cord 280 is installed at the open end of the floating object collection net 28. A plurality of hanging rings 281 are sewn at equal intervals on the surface of the elastic cord 280. The plurality of hanging rings 281 are respectively hooked to the plurality of first hooks 26 and the plurality of second hooks 27.

[0044] A floating object collection net 28 is installed between multiple first hooks 26 and multiple second hooks 27 for intercepting and collecting floating objects. An elastic cord 280 is installed at the open end of the floating object collection net 28. A plurality of hanging rings 281 are sewn equidistantly on the surface of the elastic cord 280. These hanging rings 281 are respectively hung between the multiple first hooks 26 and the multiple second hooks 27, which is convenient for disassembly and replacement. One end of the two sliding rods 15 far from the vertical plate 11 extends into the two sliding sleeves 14 and is slidably connected therewith. This design ensures the stability and smoothness of the U-shaped frame 13 when adjusting the angle.

[0045] Further, tiltably arranged connecting rods 16 are rotatably connected to the top of the surfaces of the two sliding sleeves 14. Fixedly connected to one end of the two connecting rods 16 far from the sliding sleeves 14 are third electric push rods 17. One end of the two third electric push rods 17 far from the connecting rods 16 is slidably connected to the left and right sides of the top of the lifting plate 5. Fixedly connected to the top of the lifting plate 5 is a positioning frame 18. Vertical slots 180 in the vertical direction are provided on the left and right sides of the positioning frame 18. Rotatably connected to the left and right sides inside the positioning frame 18 are lifting threaded rods 19. The bottoms of the two lifting threaded rods 19 are rotatably connected to the left and right sides of the top of the lifting plate 5.

[0046] One end of the third electric push rod 17 far from the connecting rod 16 is slidably connected to the left and right sides of the top of the lifting plate 5. By adjusting the telescopic length of the third electric push rod 17, the angle and position of the U-shaped frame 13 can be further adjusted.

[0047] Further, a positioning shell 20 is fixedly connected to the top of the positioning frame 18. The upper parts of the two lifting threaded rods 19 extend into the positioning shell 20 and are rotatably connected thereto. On the surfaces of the two lifting threaded rods 19 located inside the positioning shell 20, worm wheels 21 are fixedly sleeved. Engaged with one side of each of the two worm wheels 21 is a worm 22. A dual-axis motor 23 is provided at the center inside the positioning shell 20. The bottom of the dual-axis motor 23 is fixedly connected to the center of the top of the positioning frame 18. Worms 22 are fixedly connected to the output shafts on both sides of the dual-axis motor 23. Threaded sleeves 24 are threadedly connected to the surfaces of the two lifting threaded rods 19 located inside the positioning frame 18. Lifting limit rods 25 are fixedly connected between the left and right sides of the top of the lifting plate 5 and the top inner wall of the positioning frame 18. The lifting limit rods 25 are slidably connected to the threaded sleeves 24. Fixedly connected to one side of each of the two threaded sleeves 24 away from each other is a fixed rod 240. One end of the two fixed rods 240 far from the threaded sleeves 24 extends to the left and right sides outside the positioning frame 18 and is slidably connected to the inner wall of the vertical slot 180. Tiltably arranged third electric push rods 17 are rotatably connected to one end of the two fixed rods 240 away from each other. The telescopic ends at the bottoms of the two third electric push rods 17 are rotatably connected to one end of the connecting rod 16 far from the sliding sleeve 14.

[0048] When it is necessary to adjust the opening size of the floating object collection net 28, the operator can start the double-shaft motor 23. After the double-shaft motor 23 is started, the worm gears 22 on both output shafts are driven to rotate synchronously. When the worm gears 22 rotate synchronously, the two worm wheels 21 meshing with them rotate simultaneously. When the two worm wheels 21 rotate simultaneously, the two lifting threaded rods 19 arranged on the inner walls of the two worm wheels 21 start to rotate synchronously. When the two lifting threaded rods 19 rotate synchronously, the threaded sleeves 24 on their surfaces move up or down along the surfaces of the lifting threaded rods 19 simultaneously. At the same time, the third electric push rod 17 can be started to extend or contract. When the threaded sleeve 24 moves up or down along the surface of the lifting threaded rod 19, the sliding sleeve 14 is driven to slide up and down along the surface of the sliding rod 15 through the cooperation of the third electric push rod 17, the vertical groove 180 and the fixed rod 240, so as to adjust the angle between the lifting plate 5 and the U-shaped frame 13, so as to adjust the opening size of the floating object collection net 28 to achieve the best floating object collection effect.

[0049] Further, one side of the dam body 1 is rotatably connected with a rotating shaft 29. A sprocket 30 is fixedly sleeved on the surface of the end of the rotating shaft 29 away from the dam body 1. One end of the bidirectional lead screw 6 away from the power motor 7 extends to the outside of the other mounting plate 601 and is fixedly sleeved with a sprocket 30. The same chain 31 is meshed and connected between the two sprockets 30. One end of the rotating shaft 29 away from the dam body 1 is fixedly connected with a disc 32. An eccentric rod 33 is fixedly connected to one side of the disc 32 away from the rotating shaft 29. A displacement frame 34 with horizontal displacement is slidably connected to the surface of one side of the disc 32 away from the rotating shaft 29. One end of the eccentric rod 33 away from the disc 32 extends to the outside of the displacement frame 34 and is slidably connected with its inner wall. One end of the eccentric rod 33 away from the disc 32 is fixedly connected with a baffle 330. One side of the bottom of the displacement frame 34 is fixedly connected with a displacement block 340. One side of the dam body 1 is fixedly connected with a horizontally arranged slide rail 35. One end of the displacement block 340 away from the displacement frame 34 extends into the slide rail 35 and is slidably connected with it. A dredging plate 37 is arranged on the side of the filter plate 4 away from the lifting plate 5. A plurality of dredging rods 38 arranged at equal intervals are fixedly connected to the side of the dredging plate 37 close to the dam body 1. The plurality of dredging rods 38 are adapted to the filter holes on the surface of the filter plate 4 and are slidably connected with the inner walls of the filter holes. One side of the displacement frame 34 is fixedly connected with an L-shaped rod 36. One end of the L-shaped rod 36 away from the displacement frame 34 is fixedly connected with one side of the dredging plate 37.

[0050] The power motor 7 drives the bidirectional screw 6 to rotate, driving the screw sleeve 8 to move axially along the bidirectional screw 6. Since the screw sleeve 8 is connected to the lifting plate 5, the lifting plate 5 can move up and down along the slide grooves 102 on both sides of the dam body 1 and adjust to a suitable position to intercept floating objects. The sprocket 30 on the rotating shaft 29 is connected to the sprocket 30 on the bidirectional screw 6 through the chain 31, so that the rotation of the rotating shaft 29 synchronously drives the rotation of the bidirectional screw 6. This design not only ensures the precise control of the bidirectional screw 6, but also allows the actions of multiple key components to be controlled simultaneously through a single power source (such as the rotating shaft 29).

[0051] The disc 32 is fixed on the rotating shaft 29. As the rotating shaft 29 rotates, the eccentric rod 33 on the disc 32 drives the displacement frame 34 to make horizontal reciprocating motion. The displacement block 340 at the bottom of the displacement frame 34 slides in the slide rail 35 to ensure its smooth motion. The L-shaped rod 36 fixed on one side of the displacement frame 34 is connected to the dredging plate 37. When the displacement frame 34 moves horizontally, the dredging plate 37 and the dredging rod 38 thereon reciprocate to clean the filter plate 4 to prevent the filter holes from being blocked by debris.

[0052] A method for using a floating object blocking device for a dam, specifically comprising:

[0053] S1: Start the power motor 7 to drive the bidirectional screw 6 to rotate, and the power motor 7 drives the screw sleeve 8 to move axially along the bidirectional screw 6, thereby adjusting the height of the lifting plate 5 to make it located at the optimal interception position;

[0054] S2: The rotating shaft 29 drives the bidirectional screw 6 synchronously through the sprocket 30 and the chain 31 to ensure the coordination of the whole system. The rotating shaft 29 is started, and the disc 32 rotates accordingly, driving the eccentric rod 33 to move. The eccentric rod 33 drives the displacement frame 34 to make horizontal reciprocating motion, and then drives the dredging plate 37 and the dredging rod 38 thereon through the L-shaped rod 36 to clean the filter plate 4 to prevent the filter holes from being blocked;

[0055] S3: Start the dual-axis motor 23 to drive the worm 22 of the output shafts on both sides to rotate synchronously. The worm 22 drives the two worm wheels 21 meshing with it to rotate simultaneously, so that the two lifting threaded rods 19 set on the inner wall of the worm wheel 21 start to rotate synchronously. As the lifting threaded rod 19 rotates, the threaded sleeve 24 on its surface will move up or down along the surface of the lifting threaded rod 19, and at the same time start the No. 3 electric push rod 17 to extend or retract. Through the cooperation of the fixed rod 240 and the vertical slot 180, the sliding sleeve 14 is driven to slide up and down along the surface of the sliding rod 15, thereby adjusting the angle between the lifting plate 5 and the U-shaped frame 13 and changing the opening size of the floating object collection net 28;

[0056] S4: When it is necessary to clean the floating object collection net 28, first turn off the power motor 7 and the double-shaft motor 23 to stop the adjustment of the lifting plate 5 and the floating object collection net 28. Use the hanging ring 281 on the elastic cord 280 to quickly disassemble the floating object collection net 28, remove the collection net from the first hook 26 and the second hook 27, and perform cleaning or replacement. After cleaning, re-hang the floating object collection net 28 on the first hook 26 and the second hook 27 to ensure its correct installation.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A floating object blocking device for a dam, comprising a dam (A) and a floating object blocking mechanism (B) arranged on one side thereof, wherein the dam (A) comprises a dam body (1), a water inlet (2) of a rectangular structure is excavated in the center of the dam body (1), a filter plate (4) is arranged inside the water inlet (2), the top of the filter plate (4) extends to above the top of the dam body (1) and is slidably connected thereto, and is characterized in that: The floating object blocking mechanism (B) comprises a lifting plate (5) slidably arranged on one side of the water inlet end of the dam body (1); a bidirectional screw rod (6) arranged transversely is rotatably connected to the top of the water inlet end of the dam body (1); both left and right ends of the bidirectional screw rod (6) are rotatably connected to mounting plates (601); one side of the two mounting plates (601) is fixedly connected to one side of the top of the dam body (1); one end of the bidirectional screw rod (6) extends to the outside of one of the mounting plates (601) and is fixedly connected to the output shaft of a power motor (7); the power motor (7) is fixedly installed on the outside of one of the mounting plates (601); both left and right sides of the surface of the bidirectional screw rod (6) are threadedly connected to screw rod sleeves (8); a horizontal limit rod (9) is fixedly connected between the two mounting plates (601) that are close to each other; the horizontal limit rod (9) is located above the bidirectional screw rod (6); and the horizontal limit rod (9) is slidably connected to the two screw rod sleeves (8).

2. A floating object blocking device for dams as claimed in claim 1, characterized in that: The dam body (1) has vertical slide grooves (102) correspondingly formed on the left and right sides of the water inlet end, and the lifting plate (5) is fixedly connected with sliders (501) on the left and right ends of the side close to the water inlet end of the dam body (1). The two sliders (501) extend into the two slide grooves (102) respectively and are slidably connected thereto. An opening adapted to the water inlet (2) is formed at the center of the top of the dam body (1), and a U-shaped frame (3) is provided inside the water inlet (2). The top of the U-shaped frame (3) extends to above the top of the dam body (1) and is slidably connected thereto.

3. A floating object blocking device for dams as claimed in claim 2, characterized in that: The dam body (1) has installation cavities (101) correspondingly opened on the left and right sides inside, and the bottom of the inner walls of the two installation cavities (101) are fixedly connected to a No. 1 electric push rod (103), and the movable rods of the two No. 1 electric push rods (103) extend to the top of the dam body (1) and are slidably connected thereto, and the top telescopic ends of the two No. 1 electric push rods (103) are fixedly connected to the left and right sides of the top of the U-shaped frame (3), and the left and right sides of the inner walls of the U-shaped frame (3) are opened with vertical card slots (301), and the U-shaped frame (3) is slidably connected with a filter plate (4) inside, and the left and right sides of the filter plate (4) are fixedly connected with card blocks (401), and the two card blocks (401) are respectively carded with the two card slots (301), and the top center of the filter plate (4) is fixedly connected with a handle (402).

4. The floating object blocking device for dams according to claim 1, characterized in that: The bottoms of the two screw sleeves (8) are both rotatably connected with a tilted No. 2 electric push rod (10), the telescopic ends of the bottoms of the two No. 2 electric push rods (10) are rotatably connected to the left and right sides of the top of the lifting plate (5), the left and right sides of the bottom of the lifting plate (5) are fixedly connected with a vertically arranged vertical plate (11), the bottoms of the two vertical plates (11) are fixedly connected with a horizontally arranged round rod (12), the left and right sides of the surface of the round rod (12) are rotatably connected with a U-shaped frame (13), the left and right sides of the round rod (12) are located inside the two U-shaped frames (13), the angle between the two vertical plates (11) and the two U-shaped frames (13) is 90°, and the top of the vertical plate (11) is rotatably connected to the side of the U-shaped frame (13) away from the round rod (12).

5. A floating object blocking device for dams as claimed in claim 4, characterized in that: The lifting plate (5) is fixedly connected to a side away from the dam body (1) with a plurality of No. 1 hooks (26) arranged at equal intervals, and the U-shaped frame (13) is fixedly connected to a side close to the lifting plate (5) with a plurality of No. 2 hooks (27) arranged at equal intervals. A floating object collection net (28) is installed between the plurality of No. 1 hooks (26) and the plurality of No. 2 hooks (27). The U-shaped frame (13) is rotatably connected to the left and right ends of the side away from the round rod (12) with inclined sliding sleeves (14). 11) Both left and right ends of the top are rotatably connected with inclined sliding rods (15), one end of the two sliding rods (15) away from the vertical plate (11) extends to the inside of the two sliding sleeves (14) and is slidably connected thereto, an elastic rope (280) is installed at the open part of the floating object collection net (28), and a plurality of hanging rings (281) are equidistantly sewn on the surface of the elastic rope (280), and the plurality of hanging rings (281) are respectively connected to the plurality of No. 1 hooks (26) and the plurality of No. 2 hooks (27).

6. A floating object blocking device for dams as claimed in claim 5, characterized in that: The top of the surface of the two sliding sleeves (14) are rotatably connected with an inclined connecting rod (16), and the ends of the two connecting rods (16) away from the sliding sleeves (14) are fixedly connected with a No. 3 electric push rod (17), and the ends of the two No. 3 electric push rods (17) away from the connecting rod (16) are slidably connected to the left and right sides of the top of the lifting plate (5), and the top of the lifting plate (5) is fixedly connected with a positioning frame (18), and the left and right sides of the positioning frame (18) are provided with vertical grooves (180) in the vertical direction. The left and right sides of the positioning frame (18) are rotatably connected with a lifting threaded rod (19), and the bottoms of the two lifting threaded rods (19) are rotatably connected to the left and right sides of the top of the lifting plate (5).

7. A floating object blocking device for dams as claimed in claim 6, characterized in that: The top of the positioning frame (18) is fixedly connected to a positioning shell (20); the two lifting threaded rods (19) extend upward to the inside of the positioning shell (20) and are rotationally connected thereto; the surfaces of the two lifting threaded rods (19) located inside the positioning shell (20) are fixedly sleeved with worm wheels (21); one side of the two worm wheels (21) is meshingly connected with a worm (22); a double-axis motor (23) is provided at the center of the interior of the positioning shell (20); the bottom of the double-axis motor (23) is fixedly connected to the top center of the positioning frame (18); the output shafts on both sides of the double-axis motor (23) are fixedly connected with the worm (22); the surfaces of the two lifting threaded rods (19) located inside the positioning frame (18) are threadedly connected with threaded sleeves (24) A lifting limit rod (25) is fixedly connected between the left and right sides of the top of the lifting plate (5) and the top of the inner wall of the positioning frame (18), and the lifting limit rod (25) is slidably connected to the threaded sleeve (24). The two threaded sleeves (24) are fixedly connected to a fixing rod (240) on the side away from each other. The two fixing rods (240) extend to the left and right sides of the outside of the positioning frame (18) and are slidably connected to the inner wall of the vertical groove (180) at one end away from the threaded sleeve (24). The fixing rods (240) are rotatably connected to an inclined No. 3 electric push rod (17) at one end away from each other. The bottom telescopic ends of the two No. 3 electric push rods (17) are rotatably connected to the end of the connecting rod (16) away from the sliding sleeve (14).

8. The floating object blocking device for dams according to claim 1, characterized in that: One side of the dam body (1) is rotatably connected to a rotating shaft (29); a sprocket (30) is fixedly sleeved on the surface of one end of the rotating shaft (29) away from the dam body (1); an end of the bidirectional screw rod (6) away from the power motor (7) extends to the outside of another mounting plate (601) and is fixedly sleeved with a sprocket (30); the two sprockets (30) are meshedly connected with a same chain (31); an end of the rotating shaft (29) away from the dam body (1) is fixedly connected to a disk (32); a side of the disk (32) away from the rotating shaft (29) is fixedly connected to an eccentric rod (33); a side of the disk (32) away from the rotating shaft (29) is slidably connected to a horizontal displacement frame (34); an end of the eccentric rod (33) away from the disk (32) extends to the outside of the displacement frame (34) and is slidably connected to the inner wall of the displacement frame; the eccentric rod (33) is far from the disk (32) and is fixedly connected to the sprocket (30) on the surface of the dam body (1); A baffle (330) is fixedly connected to one end of the disc (32); a displacement block (340) is fixedly connected to one side of the bottom of the displacement frame (34); a horizontally arranged slide rail (35) is fixedly connected to one side of the dam body (1); an end of the displacement block (340) away from the displacement frame (34) extends into the interior of the slide rail (35) and is slidably connected thereto; a dredging plate (37) is provided on the side of the filter plate (4) away from the lifting plate (5); a plurality of dredging rods (38) arranged equidistantly are fixedly connected to the dredging plate (37) on the side close to the dam body (1); the plurality of dredging rods (38) are mutually adapted to filter holes on the surface of the filter plate (4) and are slidably connected to the inner walls of the filter holes; an L-shaped rod (36) is fixedly connected to one side of the displacement frame (34); an end of the L-shaped rod (36) away from the displacement frame (34) is fixedly connected to one side of the dredging plate (37).

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