A water power station water surface dirt cleaning device

Abstract

This invention discloses a device for cleaning surface debris in hydropower stations, comprising a shell assembly, a barrier assembly, and a telescopic assembly. The shell assembly includes a T-shaped shell body, inside which two sets of first connecting shafts and two sets of second connecting shafts are rotatably connected, with each set of first connecting shafts located diagonally to the right of a second connecting shaft. The barrier assembly includes a first gear rotatably connected to the first connecting shaft and a second gear rotatably connected to the second connecting shaft, the first gear and the second gear meshing with each other. The telescopic assembly includes a rectangular limiting plate slidably connected to the center of the T-shaped shell body, with rack layers fixedly installed on both sides of the rectangular limiting plate, the rack layers meshing with the first gears. This invention can quickly clean surface debris while conveniently collecting it, thus saving time.

Description

Technical Field

[0001] This invention relates to the field of water surface debris cleaning devices, and in particular to a water surface debris cleaning device for hydropower stations. Background Technology

[0002] A hydropower station, composed of a hydraulic system, a mechanical system, and an electrical power generation device, is a key water conservancy project that converts water energy into electrical energy. The sustainability of electrical production requires the uninterrupted utilization of water energy by the hydropower station. Through the construction of the reservoir system, the distribution of water resources in time and space is artificially regulated and altered, achieving sustainable utilization of these resources. To effectively convert the water energy in the reservoir into electrical energy, a hydropower station requires a hydro-mechanical system, mainly composed of a pressure intake pipe, turbine, generator, and tailrace pipe. Before the process of converting water energy into electrical energy, the water surface needs to be cleaned to prevent debris from clogging the inlet and outlet, thus ensuring safe operation. Currently, cleaning the water surface typically involves manual labor using barriers or small boats, which is neither quick nor efficient, and each cleaning requires significant time and effort. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by this invention is that the surface of water in hydropower stations cannot be cleaned up quickly, and each cleaning requires a lot of time and effort.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hydropower station surface debris cleaning device, comprising an outer shell assembly, a barrier assembly, and a telescopic assembly; the outer shell assembly includes a T-shaped outer shell body, wherein two sets of first connecting shafts and two sets of second connecting shafts are rotatably connected inside the T-shaped outer shell body, and each set of first connecting shafts is located diagonally to the right of the second connecting shaft; the barrier assembly includes a first gear rotatably connected to the first connecting shaft and a second gear rotatably connected to the second connecting shaft, wherein the first gear and the second gear mesh with each other; and the telescopic assembly includes a rectangular limiting plate slidably connected to the center of the T-shaped outer shell body, wherein a first rack layer is fixedly installed on both sides of the rectangular limiting plate, and the first rack layer meshes with the first gear.

[0007] As an improvement of the present invention, a propeller is provided at the rear end of the T-shaped outer shell body, and two sets of control buttons are provided at the upper end of the T-shaped outer shell body, namely a power switch button and a speed adjustment button. A water-blocking plate is fixedly installed at the center of the front end of the T-shaped outer shell body, and a rectangular groove is formed at the center of the water-blocking plate.

[0008] As an improvement of the present invention, a T-shaped groove is provided at the upper end of the T-shaped outer shell body, and an upper baffle is fixedly installed at the upper end of the T-shaped outer shell body, the upper baffle being adapted to the T-shaped groove provided in the T-shaped outer shell body; A torsion spring column is rotatably connected to the upper center of the upper baffle. A limit bolt is fixedly installed at the upper end of the torsion spring column, and a positioning gear is rotatably connected to the lower end of the torsion spring column.

[0009] As an improvement of the present invention, the upper ends of both sets of the first gears are rotatably connected to a first mounting shaft, and the upper ends of both sets of the second gears are rotatably connected to a second mounting shaft.

[0010] As an improvement of the present invention, an inclined bar is fixedly installed at the upper end of the first mounting shaft, and the other end of the inclined bar is connected to the second mounting shaft. The length of the inclined bar is equal to the line segment of the center point of the first gear and the second gear.

[0011] As an improvement of the present invention, a fixing plate is fixedly installed on the outer wall of both sets of the second mounting shafts. An intercepting plate is welded to the side of each set of fixing plates away from the second gear. A rotating shaft is rotatably connected to the upper end of the two sets of intercepting plates near the fixing plate. A rack chain is sleeved on both sets of rotating shafts. The rack chains mesh on the torsion spring column, and the two sets of rack chains are staggered above and below the torsion spring column. The lengths of the two sets of fixing plates are exactly aligned with the two side edges of the T-shaped outer shell body, and there is a rotatable gap between the interceptor plate connected to the fixing plate and the two side edges of the T-shaped outer shell body, with a gap width of 1cm.

[0012] As an improvement of the present invention, a rack chain is fixedly installed at the lower end of both sets of interceptor plates, the spacing between the racks of the rack chain is 0.5cm, a damping shaft is rotatably connected to the edge of both sets of interceptor plates away from the T-shaped outer shell body, and a slanted baffle is sleeved on the outer wall of each set of damping shafts, and the two sets of slanted baffles are in the shape of an inverted trapezoid.

[0013] As an improvement of the present invention, a front baffle is fixedly installed at the front end of the rectangular limiting plate, silicone layers are fixedly installed on both sides of the front baffle, and inclined panels are fixedly installed on the outer side of the front baffle, and the width of the front baffle is twice that of the inclined baffle.

[0014] As an improvement of the present invention, two sets of fixing piles are fixed to the upper end of the rectangular limiting plate, and spring ribs are sleeved on the outer walls of the two sets of fixing piles. A mounting screw plate is provided on the other side of the spring ribs, and the other side of the mounting screw plate is fixedly installed to the inner side of the baffle. The rectangular limiting plate has a second rack layer on both sides at the center. The second rack layer meshes with the positioning gear. The positioning gear is threaded with a lead screw at the center. A medicine box is fixedly installed at the lower end of the lead screw. The medicine box is embedded in the lower end of the T-shaped outer shell body.

[0015] As an improvement of the present invention, the width of the rectangular limiting plate is equal to the width of the rectangular groove opened on the water-resistant plate, and the rectangular limiting plate passes through the rectangular groove and is slidably connected to it.

[0016] The beneficial effects of this invention are as follows: By placing the device on the water surface and starting the propeller via a control button, the device moves forward on the water surface. As the interceptor plates expand outward, they drive the rack chains connected above them via rotating shafts to move outward. During the movement, the rack chains rotate the torsion spring columns. When the torsion spring columns deform, there is an opposite reaction force that rotates them. Thus, as the interceptor plates expand outward, they contract inward due to the force of the torsion spring columns. As the device continues to move forward, the telescopic components expand the interceptor plates outward again. This process repeats, allowing the interceptor plates to intercept debris on the water surface as they move forward, facilitating the cleaning of debris. It can quickly clean up debris on the water surface and also facilitate the collection of debris, saving time. At the same time, during the process of collecting floating objects, the flocculant in the medicine box can be evenly sprinkled into the water by the water flow. This treats the debris in the water or forms floating objects that are collected by the interceptor plates. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the structure of a hydropower station surface debris cleaning device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the hydropower station surface debris cleaning device after the upper baffle is opened, according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the outer shell assembly in a hydropower station surface debris cleaning device according to an embodiment of the present invention; Figure 4This is a schematic diagram of the structure of the debris-blocking component in a hydropower station surface debris cleaning device according to an embodiment of the present invention; Figure 5 A hydropower station surface debris cleaning device according to an embodiment of the present invention. Figure 2 Schematic diagram of the structure at point A; Figure 6 This is a schematic diagram of the telescopic component in a hydropower station surface debris cleaning device according to an embodiment of the present invention. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Example 1 This embodiment provides a device for cleaning debris from the surface of a hydropower station, including an outer shell assembly 100, a barrier assembly 200, and a telescopic assembly 300.

[0020] Reference Figure 1 The outer casing assembly 100 includes a T-shaped outer casing body 101. A motor is installed inside the T-shaped outer casing body 101. The output end of the motor is connected to the input end of the propeller 104, and a battery is installed inside. All parts of the outer casing assembly 100 that come into contact with the outside are sealed with gaskets. A buoyancy plate is installed at the lower end of the outer casing assembly 100. Two sets of first connecting shafts 101a and two sets of second connecting shafts 101b are rotatably connected inside the T-shaped outer casing body 101. Each set of first connecting shafts 101a is located diagonally to the right of the second connecting shaft 101b. Reference Figure 1 and 4 The barrier assembly 200 includes a first gear 204 rotatably connected to a first connecting shaft 101a and a second gear 205 rotatably connected to a second connecting shaft 101b, wherein the first gear 204 and the second gear 205 are meshed; and Reference Figure 2 and 6 The telescopic component 300 includes a rectangular limiting plate 301 that is slidably connected to the center of the T-shaped housing body 101. A first rack layer 303 is fixedly installed on both sides of the rectangular limiting plate 301, and the first rack layer 303 meshes with the first gear 204.

[0021] Reference Figure 1 and 3 The rear end of the T-shaped housing body 101 is provided with a propeller 104, and the upper end of the T-shaped housing body 101 is provided with two sets of control buttons 103, which are a power switch button and a speed control button. A water-blocking plate 105 is fixedly installed at the center of the front end of the T-shaped outer shell body 101, and a rectangular groove is opened at the center of the water-blocking plate 105.

[0022] Reference Figure 1 and 3 The upper end of the T-shaped outer shell body 101 is provided with a T-shaped groove, and an upper baffle 102 is fixedly installed on the upper end of the T-shaped outer shell body 101. The upper baffle 102 is adapted to the T-shaped groove provided in the T-shaped outer shell body 101. A torsion spring column 107 is rotatably connected to the upper center of the upper baffle 102. A limit bolt 106 is fixedly installed at the upper end of the torsion spring column 107. A positioning gear 309 is fixedly connected to the lower end of the torsion spring column 107. The positioning gear 309 is a rack with half of its outer wall wrapped around a round shaft. The rack meshes with the second rack layer 308, and the meshing length of the rack is less than the length of the second rack layer 308.

[0023] Example 2 This embodiment is based on the previous embodiment, but differs from it in that: in this embodiment, when the motor is working, the barrier assembly 200 enables rapid interception and cleaning of surface debris when it is necessary to clean the water, saving time. The specific structure of this embodiment is as follows.

[0024] Reference Figure 4 The upper ends of the two sets of first gears 204 are rotatably connected to the first mounting shaft 204a, and the upper ends of the two sets of second gears 205 are rotatably connected to the second mounting shaft 205a.

[0025] Reference Figure 4 An inclined bar 203 is fixedly installed on the upper end of the first mounting shaft 204a. The other end of the inclined bar 203 is connected to the second mounting shaft 205a. The length of the inclined bar 203 is equal to the line segment of the center point of the first gear 204 and the second gear 205.

[0026] Reference Figure 1 , Figure 4Both sets of second mounting shafts 205a have fixed mounting plates 202 on their outer walls. Each set of fixed plates 202 has an intercepting plate 201 welded to the side away from the second gear 205. The inward-facing side of both intercepting plates 201 is arc-shaped to facilitate opening and closing and prevent jamming with the T-shaped outer shell 101. Rotating shafts 206 are rotatably connected to the upper ends of both sets of intercepting plates 201 near the fixed plates 202. Rack chains 206a are sleeved on both sets of rotating shafts 206. The rack chains 206a are all meshed on the torsion spring column 107, and the two sets of rack chains 206a are staggered vertically on the torsion spring column 107. The column of the torsion spring column 107 is a long gear with the rack in a vertical direction. A torsion spring is fixed in the cavity at the top of the torsion spring column 107. When the torsion spring deforms as the long gear rotates, the torsion spring will store this energy and release it instantaneously when the torsion spring reaches a limit deformation value, thereby realizing the reversal of the long gear, i.e., the torsion spring column 107. The lengths of the two sets of fixing plates 202 are exactly in contact with the two side edges of the T-shaped outer shell body 101, and there is a rotatable gap between the interceptor plate 201 connected to the fixing plate 202 and the two side edges of the T-shaped outer shell body 101, the gap being 1cm wide.

[0027] Preferably, semi-circular limiting plates are provided on both sides of the upper end of the upper baffle 102 near the torsion spring column 107, and the semi-circular limiting plates and the upper baffle 102 are rotatable. The distance between the limiting plate 102 and the torsion spring column 107 is exactly the same as the width of the rack plate 206a connected to the two sets of intercepting plates 201 through the rotating shaft 206, and the torsion spring column 107 and the two sets of rack plates 206a mesh with each other. At the same time, the two sets of rack plates 206a are composed of multiple sets of small rack plates 206a combined by bearings, similar to a bicycle chain, and can deform on its own.

[0028] Furthermore, the ends of the two rack chains 206a can be attached to the torsion spring column 107 in the initial state. When the device moves, the torsion spring column 107 rotates, driving the two sets of rack chains 206a to move horizontally, thereby performing the movement. However, due to the action of the semi-circular limiting plate, the rack chains 206a can only be attached to the torsion spring column 107 and cannot deviate.

[0029] Reference Figure 2 , Figure 4 Both sets of interceptor plates 201 are fixedly installed with rack chains 201c at their lower ends. The spacing between the racks in the rack chains 201c is 0.5cm. Both sets of interceptor plates 201 are rotatably connected to a damping shaft 201a at the edge away from the T-shaped outer shell body 101. Each set of damping shafts 201a has an inclined baffle 201b sleeved on its outer wall. The two sets of inclined baffles 201b are in the shape of an inverted trapezoid.

[0030] In this embodiment, when intercepting surface debris, the inclined baffle 201b at the edge of the interception plate 201 is first extended outwards. Then, the device is placed on the water surface. The interception plates 201 extend outwards from both sides of the T-shaped housing body 101. The rack chain 201c below the interception plate 201 is located below the water surface. After the propeller 104 is started by the control button 103 to drive the device forward on the water surface, the two sets of interception plates 201 will extend outwards due to the telescopic component 300. At the same time, the telescopic component 300 will also drive the positioning gear 309 meshing with the second rack layer 308 on the inner side. When the positioning gear 309 rotates, it will drive the torsion spring column 107 above it to rotate. When the torsion spring column 107 rotates, the rack chain 206a will torsion during the movement. The spring column 107 rotates, causing it to deform. During this deformation, the spring column 107 generates a counterforce that causes it to rotate. As the interceptor plate 201 expands outward, it contracts inward due to the force of the spring column 107. As the device continues to move forward, the telescopic component 300 expands the interceptor plate outward again. This process repeats, allowing the interceptor plate 201 to intercept debris on the water surface as it moves forward. Simultaneously, the repeated expansion and contraction of the interceptor plate 201 causes the debris on the water surface to retract with its movement, facilitating cleaning. The inclined baffle 201b prevents debris from flowing out from the edges of the interceptor plate 201 during interception, reducing the time required for secondary cleaning.

[0031] Example 3 This embodiment is based on the previous embodiment, but differs from it in that: in this embodiment, when the barrier assembly 200 intercepts debris on the water surface, the two side barrier plates 201 can be extended outwards, and after the interception ends, the barrier plates 201 can be retracted inwards. The specific structure of this embodiment is as follows.

[0032] Reference Figure 6 A front baffle 302 is fixedly installed at the front end of the rectangular limiting plate 301. Silicone layers 304 are fixedly installed on both sides of the front baffle 302. An inclined plate 304a is fixedly installed on the other side of the two fixed layers. The width of the front baffle 302 is twice that of the inclined baffle 201b. A second rack layer 308 is provided on both sides of the center of the rectangular limiting plate 301. The second rack layer 308 meshes with the positioning gear 309. A lead screw 310 is threadedly connected to the center of the positioning gear 309. A medicine box 311 is fixedly installed at the lower end of the lead screw 310. The medicine box 311 is embedded in the lower end of the T-shaped outer shell body 101.

[0033] Preferably, the medicine box 311 contains flocculant and is hollowed out at both ends. The medicine inside is wrapped inside the medicine box 311, and the aperture of the medicine box 311 to the outside is very small. The hollowing direction of the medicine box 3011 is inclined, along the direction of water flow. When moving, water enters from one side of the medicine box 311 and exits from the other side. Inside the medicine box 3011, as the water flows from left to right, it carries the medicine out. Due to the small aperture, a small amount of medicine is carried out with each water flow. The device will also collect floating objects on the river surface. During the first collection of floating objects, the water flow will continuously carry out a small amount of flocculant. Flocculant is a commonly used agent in water supply and sewage treatment. Specifically, organic polymer flocculants can be used. The flocculant reacts with the pollutants in the water to form sediment that sinks to the bottom of the water, or forms floating objects that float on the water surface and are intercepted and collected by the interceptor plate 201.

[0034] Reference Figure 6 Two sets of fixing posts 305 are fixed to the upper end of the rectangular limiting plate 301. Spring ribs 306 are sleeved on the outer walls of the two sets of fixing posts 305. A mounting screw plate 307 is provided on the other side of the spring ribs 306. The other side of the mounting screw plate 307 is fixedly installed to the inner side of the water-blocking plate 105.

[0035] Reference Figure 3 and 6 The width of the rectangular limiting plate 301 is equal to the width of the rectangular groove opened on the water-blocking plate 105, and the rectangular limiting plate 301 passes through the rectangular groove and is slidably connected to it.

[0036] In this embodiment, before using the device, the T-shaped outer shell 101 is placed on the water surface. Then, the device is started, and the T-shaped outer shell 101 is driven forward by the propeller 104. When the T-shaped outer shell 101 moves forward, the front baffle 302 located in front of the T-shaped outer shell 101 retracts inward due to the resistance of the water flow. At this time, the rectangular limiting plate 301 connected to the front baffle 302 moves backward, simultaneously stretching the spring rib 306 and moving along the rack layers on both sides of the rectangular limiting plate 301 on the first gear 204. This causes the first gear 204 to rotate to the right. When the first gear 204 rotates to the right, it causes the second gear 205 to move to the left, thus causing the interceptor plate 201 to extend outward until the front baffle... When plate 302 is attached to the water-blocking plate 105, the intercepting plate 201 and the T-shaped outer shell body 101 form a 90-degree right angle. As the front baffle 302 retracts inward, the rectangular limiting plate 301 drives the positioning gear 309 to rotate. The rotation of the positioning gear 309 causes the torsion spring column 107 to deform. When the intercepting plate 201 and the T-shaped outer shell body 101 form a certain interception angle, the torsion spring column 107 reaches its limit deformation value. At this point, the torsion spring column 107 releases energy and reverses direction. This reversal pulls the rack chain 206a. Since the distance between the rotating shaft 206 and the torsion spring column 107 in the initial state of the rack chain 206a is less than the distance in the maximum open state, the rack chain 206a generates [energy] when it retracts. Pulling the interceptor plate 201 causes it to return to its initial state, repeating this process. The interceptor plate 201 opens and closes repeatedly on the water surface to intercept debris. When the equipment finally stops, the front baffle 302 has no water flow resistance. The rectangular limit plate 301 is then disengaged from the water-blocking plate 105 by the retraction of the spring rib 306. At this point, the first gear 204 rotates to the left, and the second gear 205 moves to the right, causing the interceptor plate 201 to converge inwards, thus collecting the debris intercepted by the interceptor plate 201. Simultaneously, during the equipment's movement, when the front baffle 302 is squeezed, it drives the positioning gear 309, which meshes with the second rack layer 308 on its inner side. When the positioning gear 309 rotates... When in operation, the torsion spring column 107 rotates, which in turn drives the lead screw 310 to rotate. As the lead screw 310 rotates, it causes the medicine box 311 connected to its lower end to fall. Upon contact with water, the medicine box 311 dilutes the medicine within, causing impurities in the water to be absorbed, forming larger impurities that float on the surface. These are then collected and gathered by the equipment. When the equipment stops, the front baffle 302 returns to its original position. The torsion spring column 107 then rotates in the opposite direction, causing the lead screw 310 to rotate in the opposite direction. As the lead screw 310 rotates, it causes the medicine box 311 connected to its lower end to rise, thus re-embedding inside the T-shaped outer shell 101 to form a seal.Sealing prevents unused flocculant in drug box 311 from being spilled into the water and wasted.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for cleaning debris from the surface of a hydropower station, characterized in that: include, The housing assembly (100) includes a T-shaped housing body (101), wherein two sets of first connecting shafts (101a) and two sets of second connecting shafts (101b) are rotatably connected inside the T-shaped housing body (101), and each set of first connecting shafts (101a) is located at the right oblique position of the second connecting shaft (101b). The barrier assembly (200) includes a first gear (204) rotatably connected to a first connecting shaft (101a) and a second gear (205) rotatably connected to a second connecting shaft (101b), wherein the first gear (204) and the second gear (205) mesh with each other; and The telescopic assembly (300) includes a rectangular limiting plate (301) slidably connected to the center of the T-shaped housing body (101). A first rack layer (303) is fixedly installed on both sides of the rectangular limiting plate (301), and the first rack layer (303) meshes with a first gear (204). The upper ends of the two sets of first gears (204) are rotatably connected to a first mounting shaft (204a), and the upper ends of the two sets of second gears (205) are rotatably connected to a second mounting shaft (205a). An inclined bar (203) is fixedly installed at the upper end of the first mounting shaft (204a), and the other end of the inclined bar (203) is connected to the second mounting shaft (205a). The length of the inclined bar (203) is equal to the line segment of the center point of the first gear (204) and the second gear (205). A fixing plate (202) is fixedly installed on the outer wall of each of the two sets of second mounting shafts (205a). An intercepting plate (201) is welded to the side of each fixing plate (202) away from the second gear (205). A rotating shaft (206) is rotatably connected to the upper end of each of the two sets of intercepting plates (201) near the fixing plate (202). A rack chain (206a) is sleeved on each of the two sets of rotating shafts (206). The rack chains (206a) are meshed on the torsion spring column (107), and the rack chains (206a) are staggered vertically on the torsion spring column (107). The lengths of the two sets of fixing plates (202) are exactly in contact with the two side edges of the T-shaped outer shell body (101), and there is a rotatable gap between the interceptor plate (201) connected to the fixing plate (202) and the two side edges of the T-shaped outer shell body (101). Both sets of interceptor plates (201) are fixedly installed with rack chains (201c) at their lower ends. The racks between the rack chains (201c) are spaced 0.5cm apart. Both sets of interceptor plates (201) are rotatably connected to a damping shaft (201a) on the side edge away from the T-shaped outer shell body (101). Each set of damping shafts (201a) has an inclined baffle (201b) sleeved on its outer wall. The two sets of inclined baffles (201b) are in the shape of an inverted trapezoid.

2. The hydropower station surface debris cleaning device according to claim 1, characterized in that: The rear end of the T-shaped outer shell body (101) is provided with a propeller (104), and the upper end of the T-shaped outer shell body (101) is provided with two sets of control buttons (103), which are a power switch button and a speed adjustment button, respectively. A water-blocking plate (105) is fixedly installed at the center of the front end of the T-shaped outer shell body (101), and a rectangular groove is provided at the center of the water-blocking plate (105).

3. The hydropower station surface debris cleaning device according to claim 2, characterized in that: The upper end of the T-shaped outer shell body (101) is provided with a T-shaped groove, and an upper baffle (102) is fixedly installed on the upper end of the T-shaped outer shell body (101). The upper baffle (102) is adapted to the T-shaped groove provided in the T-shaped outer shell body (101). A torsion spring column (107) is rotatably connected to the upper center of the upper baffle (102). A limit bolt (106) is fixedly installed at the upper end of the torsion spring column (107), and a positioning gear (309) is rotatably connected to the lower end of the torsion spring column (107).

4. The hydropower station surface debris cleaning device according to claim 3, characterized in that: A front baffle (302) is fixedly installed at the front end of the rectangular limiting plate (301), and silicone layers (304) are fixedly installed on both sides of the front baffle (302). An inclined plate (304a) is fixedly installed on the outer side of the front baffle (302), and the width of the front baffle (302) is twice that of the inclined baffle (201b). The rectangular limiting plate (301) has a second rack layer (308) on both sides at the center. The second rack layer (308) meshes with the positioning gear (309). The positioning gear (309) is threaded with a lead screw (310) at the center. A medicine box (311) is fixedly installed at the lower end of the lead screw (310). The medicine box (311) is embedded in the lower end of the T-shaped outer shell body (101).

5. The hydropower station surface debris cleaning device according to claim 4, characterized in that: Two sets of fixing piles (305) are fixed at the upper end of the rectangular limiting plate (301). The outer walls of the two sets of fixing piles (305) are fitted with spring ribs (306). A mounting screw plate (307) is provided on the other side of the spring ribs (306). The other side of the mounting screw plate (307) is fixedly installed to the inner side of the water-blocking plate (105).

6. The hydropower station surface debris cleaning device according to any one of claims 1, 4, or 5, characterized in that: The width of the rectangular limiting plate (301) is equal to the width of the rectangular groove opened on the water-blocking plate (105), and the rectangular limiting plate (301) passes through the rectangular groove and is slidably connected to it.

Images