Water conservancy trash rack device

Abstract

The application relates to the technical field of trash racks, and particularly discloses a water conservancy trash rack device, which comprises a channel, a trash rack fixed in the channel and a collecting mechanism arranged on one side of the trash rack, two oppositely arranged mounting plates are fixed at the top of the channel, traction assemblies are arranged on the two mounting plates, slide assembly components are arranged on the inner walls of the two mounting plates, a cleaning mechanism and a filtering mechanism connected with the cleaning mechanism are arranged in the channel; when the accumulated sundries need to be cleaned, the cleaning mechanism is pulled upwards along the slide assembly component through the traction assembly, the sundries are cleaned out of the water surface, in the process, the filtering mechanism can intercept the sundries flowing below the cleaning mechanism to prevent the sundries from being accumulated at the trash rack, and the filtering mechanism can assist the cleaning mechanism to pour the sundries into the collecting mechanism.

Description

Technical Field

[0001] This invention relates to the field of trash rack technology, specifically to a hydraulic trash rack device. Background Technology

[0002] A trash rack is a fence-like structure installed at the inlet of a water conservancy project, hydropower station, or pumping station. It typically consists of metal bars, a frame, and a cleaning device. Its main function is to intercept floating debris, suspended solids, and various other contaminants (such as branches, weeds, garbage, and ice floes) in the water flow. By intercepting floating debris, it prevents them from entering water conveyance structures such as water diversion tunnels and pressure pipelines, thus maintaining flow capacity and ensuring the normal operation of power generation and water supply functions. It also improves water quality to a certain extent through preliminary filtration. To prevent these floating debris from clogging the inlet and affecting water intake capacity, existing trash racks need to be cleaned regularly to avoid debris accumulation and blockage, which would impede water flow.

[0003] Chinese patent application CN107558441A discloses a debris cleaning device for a trash rack, including a cleaning rake and a traction assembly mounted on a dam for driving the rake up and down. The cleaning rake includes rake teeth inserted into the trash rack. The traction assembly includes a support frame mounted on the dam, a traction motor fixed to the support frame, a rotating shaft connected to the output shaft of the traction motor, and two suspension cables wound around both ends of the rotating shaft, with the other ends of the two suspension cables connected to both ends of the cleaning rake. The device also includes a sweeping mechanism for assisting in cleaning debris from the cleaning rake. The sweeping mechanism includes a sweeping rotating shaft mounted on the support frame and a U-shaped sweeping roller mounted on the sweeping rotating shaft. The outer surface of the U-shaped sweeping roller is covered with strips of cloth or sponge. The U-shaped sweeping roller can contact the rotated cleaning rake. The sweeping rotating shaft is connected to the output shaft of a sweeping motor.

[0004] However, this solution also has the following problems: due to the large amount of sludge inside the cleaning rake, the cloth strips or sponges on the cleaning mechanism will be severely damaged after long-term use, resulting in a reduction in the cleaning efficiency of debris; in addition, after the cleaning rake has finished cleaning, when the cleaning rake moves downward, it causes the debris floating on the water surface to be pushed down and accumulate on the river bottom, which in turn affects the downward movement and reset of the cleaning rake frame. Furthermore, a large amount of debris accumulates at the bottom of the river, making it difficult for the cleaning rake to return to its initial position, resulting in the inability to clean it subsequently. Summary of the Invention

[0005] This invention provides a hydraulic debris barrier device, which aims to solve the problems in related technologies where the sponge on the cleaning mechanism needs to be replaced frequently and a large amount of debris accumulates under the cleaning rake, affecting the normal return of the cleaning rake to the bottom.

[0006] The hydraulic debris barrier device of the present invention includes a channel, a debris barrier fixed in the channel, and a collection mechanism disposed on one side of the debris barrier. Two opposing mounting plates are fixed at the top of the channel. A traction assembly is provided on the mounting plates. A slide assembly is provided on the inner sidewall of each of the two mounting plates. A cleaning mechanism and a filtration mechanism connected to the cleaning mechanism are disposed in the channel. The slide assembly includes slide one and slide two fixed to the inner sidewall of the mounting plate. The cleaning mechanism includes a cleaning plate that abuts against the debris barrier. The cleaning plate slides in sliding engagement with slide one and slide two respectively. The filtration mechanism includes a filter screen and a telescopic plate. One end of the telescopic plate is fixedly connected to the filter screen, and the other end is hinged to the cleaning plate. The other end of the filter screen is in close contact with the bottom of the channel.

[0007] During cleaning, the cleaning plate moves upward along slide one and slide two, with the other end of the filter screen in close contact with the bottom of the channel. When the cleaning plate moves to the top of the trash rack, it rotates and tilts towards the collection mechanism.

[0008] Water flows normally along the channel, and debris is intercepted at the trash rack. The cleaning plate, telescopic plate, and filter screen are horizontally positioned at the bottom of the channel. When debris accumulates at the trash rack, the traction component pulls the cleaning plate upwards along slides one and two, keeping it horizontal. The cleaning plate removes the debris from the water. When the cleaning plate reaches the top of the trash rack, it rotates along slides one and two towards the collection mechanism, emptying the debris into the collection mechanism. As the cleaning plate moves upwards, it pulls one end of the telescopic plate upwards, keeping the other end of the filter screen pressed against the bottom of the channel. As the cleaning plate moves upwards, the filter screen gradually tilts, intercepting passing debris and preventing it from flowing to the trash rack. When the cleaning plate returns to its original position, it presses the debris beneath it.

[0009] Preferably, the bottom of the cleaning plate has a fixing groove 1, and multiple protrusions are evenly spaced in the fixing groove 1. The protrusions are arranged along the width of the channel. The bottom of the telescopic plate has a fixing groove 2, and a spring piece for striking the cleaning plate is provided in the fixing groove 2. One end of the spring piece is fixed in the fixing groove 2, and the other end of the spring piece extends into the fixing groove 1 and abuts against the protrusions. When the cleaning plate and the telescopic plate rotate, the spring piece is driven to pass over the evenly spaced protrusions, causing the debris on the cleaning plate to vibrate.

[0010] As the cleaning plate moves upward, the angle between the telescopic plate and the cleaning plate gradually decreases. One end of the spring plate fixed at the bottom of the telescopic plate moves towards the convex strip as the angle decreases and continuously passes over the convex strip, causing the cleaning plate to vibrate when tilted, shaking the debris into the collection bin.

[0011] Preferably, the slide assembly also includes a cableway, which is fixed to the inner wall of the mounting plate and is positioned between slide one and slide two. Slide one, slide two, and the cableway all include vertical sections and arc sections.

[0012] The traction assembly pulls the cleaning plate upward along the cableway. The cleaning plate moves upward along the vertical section to lift the debris from the water and away from the water surface, and ensures that the cleaning plate does not tilt when lifting heavy debris. Then the cleaning plate rotates along the arc section to pour the debris into the collection bin.

[0013] Preferably, the cleaning mechanism further includes an inclined block and a fixed block. The inclined block is fixed on the side of the cleaning plate near the trash rack and extends into the trash rack interval. The fixed block is fixed on the side of the inclined block away from the cleaning plate.

[0014] As the cleaning plate moves upward, one end of the cleaning plate is pressed against one side of the trash rack, scraping off the debris adsorbed on the surface. The inclined block pushes the blockage debris between the trash rack intervals toward the cleaning plate, preventing the trash rack from becoming clogged, and scrapes off the debris adsorbed in the intervals.

[0015] Preferably, the cleaning mechanism also includes a pulley block, and both sides of the cleaning plate are provided with mounting grooves corresponding to slide rail one and slide rail two. The pulley block is set in the mounting groove, and the pulley block and slide rail one and slide rail two are slidably engaged. A through groove for slide rail one and slide rail two to pass through is provided in the middle of the mounting groove, and a groove one for the cableway to pass through is provided between the two mounting grooves.

[0016] Preferably, the cleaning plate is fixed with a hinge shaft on the side away from the trash rack, and the filtration mechanism also includes a counterweight block, which is fixed to one end of the filter screen. The telescopic plate and the cleaning plate are rotatably connected by the hinge shaft.

[0017] Preferably, the traction assembly includes a winding wheel and a steel wire rope. The winding wheel is rotatably mounted on the mounting plate, and one end of the steel wire rope is wound around the winding wheel, while the other end is fixedly connected to the cleaning plate along the cableway.

[0018] Preferably, the trash rack includes rack bars, a fixed shaft, and a crossbeam. The rack bars are L-shaped. The fixed shaft is horizontally arranged along the width of the channel on the horizontal section of the rack bars, and the fixed shaft and the arc-shaped section are coaxial. The fixed block has an arc-shaped groove that matches the fixed shaft. When the fixed block rises to its highest point, the arc-shaped groove and the fixed shaft are coaxial. The crossbeam is located at the bottom of the rack bars.

[0019] When the cleaning plate is vertically upward to the top in a horizontal position, the arc groove on the fixing block is in close contact with the fixing shaft, so that the cleaning plate rotates along the arc section with the fixing shaft as the center, preventing the cleaning plate from being out of place during rotation and causing it to get stuck due to misalignment at the positions of slide one and slide two.

[0020] Preferably, a limiting groove is provided at the bottom of the channel, and the crossbeam is inserted into the limiting groove.

[0021] Preferably, the collection mechanism includes a collection bin and a receiving plate, the receiving plate being rotatably connected to the collection bin, the collection bin being located on one side of the trash rack, and the receiving plate being located above the trash rack.

[0022] The beneficial effects of the present invention using the above technical solution are as follows: When cleaning debris accumulated at the trash rack, the motor starts and drives the winding wheel to rewind, thereby pulling the cleaning plate along the slide assembly and pouring the debris into the collection bin. When the cleaning plate moves upward, it can pull one end of the telescopic plate upward, causing the filter screen and the telescopic plate to gradually tilt, thereby allowing the filter screen to intercept the debris and preventing the water flow from carrying the debris to the trash rack position while the cleaning plate is cleaning the debris, thus affecting the cleaning plate's return to the bottom. When the cleaning plate moves along the slide assembly, the angle between the telescopic plate and the cleaning plate gradually decreases, and the spring and convex strips at its bottom slide relative to each other. The spring strikes the cleaning plate multiple times, thereby generating vibration and shaking the debris off. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the cleaning plate retraction structure in a specific embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the rotating structure of the cleaning plate in a specific embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the cleaning mechanism in a specific embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure of a trash rack according to a specific embodiment of the present invention.

[0028] Figure 6 This is a schematic diagram of the filter mechanism in a specific embodiment of the present invention.

[0029] Figure 7 This is a schematic diagram of the collection mechanism in a specific embodiment of the present invention.

[0030] Figure 8 This is a schematic diagram of the structure of the driving device in a specific embodiment of the present invention.

[0031] Figure label:

[0032] 1. Channel; 11. Limiting groove; 12. Mounting plate; 2. Drive assembly; 21. Motor; 22. Bracket 1; 23. Bracket 2; 3. Traction assembly; 31. Winding wheel; 32. Steel wire rope; 4. Slide assembly; 41. Slide 1; 42. Slide 2; 43. Cableway; 5. Trash rack; 51. Fixed shaft; 52. Crossbeam; 53. Rack bar; 6. Cleaning mechanism; 61. Cleaning plate; 62. Hinge shaft; 63. Protruding strip; 64. 65. Spring; 66. Inclined block; 67. Fixed block; 68. Arc groove; 69. Through groove; 60. Groove one; 610. Through hole; 611. Pulley block; 612. Mounting groove; 613. Fixed groove one; 7. Filtering mechanism; 71. Counterweight block; 72. Filter screen; 73. Telescopic plate; 74. Fixed groove two; 75. Ear plate; 76. Rotary hole; 8. Collection mechanism; 81. Collection bin; 82. Receiving plate; 83. Rotating rod; 84. Support leg. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] like Figures 1 to 8 As shown, a water conservancy debris barrier device includes a channel 1, a debris barrier 5, a slide assembly 4, a drive assembly 2, a traction assembly 3, a cleaning mechanism 6, a filtering mechanism 7, and a collection mechanism 8. The debris barrier 5 is fixedly installed inside the channel 1 by bolts and is used to intercept debris. Two mounting plates 12 are fixed to the top of the channel 1 and are symmetrically arranged along the width of the channel 1. Two sets of slide assemblies 4 are symmetrically installed on the inner sides of the two mounting plates 12. Two sets of drive assemblies 2 are symmetrically installed on the two mounting plates 12. The drive assembly 2 and the traction assembly 3 are rotatably connected. The traction end of the traction assembly 3 is connected to the cleaning mechanism 6. The side of the cleaning mechanism 6 away from the debris barrier 5 is rotatably connected to the filtering mechanism 7. The traction of the traction assembly 3 drives the cleaning mechanism 6 to move upward. The filtering mechanism 7 tilts to intercept debris in the water and prevents debris from entering below the cleaning mechanism 6. The collection mechanism 8 is located on the right side of the debris barrier 5. The collection mechanism 8 is used to collect the debris that the cleaning mechanism 6 retrieves from the water.

[0035] Initially, the cleaning mechanism 6 and the filtration mechanism 7 are placed horizontally at the bottom of the channel 1 to avoid affecting the flow of debris and water. When the debris accumulated at the trash rack 5 affects the flow of water, the two sets of drive components 2 are activated simultaneously. The traction component 3 drives the cleaning mechanism 6 to move upward from the bottom of the channel 1 along the slide component 4, lifting the debris accumulated at the trash rack 5 to the surface of the water. The cleaning mechanism 6 continues to move along the slide component 4 and gradually rotates along the slide component 4 towards the collection mechanism 8. The cleaning mechanism 6 moves the debris and pours it into the collection mechanism 8. When the cleaning mechanism 6 moves upward, one end of the filter mechanism 7 connected to the cleaning mechanism 6 is pulled up by the cleaning mechanism 6, and the other end is pressed against the bottom of the channel 1, thereby tilting the filter mechanism 7. When the water flows through the filter mechanism 7, it intercepts the debris and prevents the debris from passing through the filter mechanism 7 and being intercepted by the debris barrier 5. As a result, when the cleaning mechanism 6 resets, the debris is pressed into the bottom of the cleaning mechanism 6, causing the cleaning mechanism 6 to be unable to reset horizontally to the bottom of the channel 1 and unable to clean the debris pressed into the bottom.

[0036] like Figure 2 and Figure 5 As shown, the trash rack 5 consists of a fixed shaft 51, a crossbeam 52, and multiple rack bars 53. The rack bars 53 are L-shaped, with the vertical section extending into the channel 1 and the horizontal section arranged along the length of the channel 1. The multiple rack bars 53 are evenly spaced along the width of the channel 1. The fixed shaft 51 passes through the horizontal section of each rack bar 53 and is fixedly connected to the rack bar 53. The crossbeam 52 is fixedly connected to the bottom of the rack bars 53 to increase the strength of the trash rack 5. A limiting groove 11 is provided at the bottom of the channel 1. The limiting groove 11 and the crossbeam 52 are adapted to each other. The crossbeam 52 is inserted into the limiting groove 11, thereby limiting the trash rack 5. The upper surface of the crossbeam 52 is at the same level as the bottom of the channel 1 to prevent debris from accumulating at the junction of the crossbeam 52 and the limiting groove 11.

[0037] like Figure 2 As shown, the slide assembly 4 includes slide 1 41, slide 2 42, and cableway 43. Slide 1 41, slide 2 42, and cableway 43 are all fixed on the inner wall of the mounting plate 12. Slide 1 41, slide 2 42, and cableway 43 are equidistant. Cableway 43 is located between slide 1 41 and slide 2 42. Slide 1 41, slide 2 42, and cableway 43 each include a vertical section and an arc section. The vertical section and the arc section are tangent and smoothly transition, allowing the cleaning mechanism 6 to pass smoothly. The tangent position of the vertical section and the arc section is on the same horizontal plane as the axis of the fixed shaft 51. The arc section of slide 1 41, slide 2 42, and cableway 43 is coaxially arranged with the fixed shaft 51, ensuring that the cleaning mechanism 6 can rotate smoothly around the fixed shaft 51.

[0038] Slide 1 41 and slide 2 42 limit the movement of the cleaning mechanism 6, allowing the cleaning mechanism 6 to move along slide 1 41 and slide 2 42 during operation. When it moves to the arc segment position, the cleaning mechanism 6 can rotate around the fixed axis 51, preventing the cleaning mechanism 6 from getting stuck due to the difference in the center between the cleaning mechanism 6 and the arc segment when rotating along the arc segment.

[0039] like Figure 8 As shown, the drive assembly 2 includes a motor 21, a first bracket 22, and a second bracket 23; the first bracket 22 and the second bracket 23 are fixed on the side of the mounting plate 12 near the trash rack 5, the motor 21 is fixed on the outer side of the first bracket 22, and the motor shaft of the motor 21 is connected to the traction assembly 3.

[0040] like Figure 2 and Figure 8 As shown, the traction assembly 3 includes a winding wheel 31 and a steel wire rope 32. The winding wheel 31 is rotatably connected between the first bracket 22 and the second bracket 23, and the winding wheel 31 is fixedly connected to the motor shaft of the motor 21. The steel wire rope 32 is wound on the winding wheel 31, and the traction end of the steel wire rope 32 is connected to the cleaning mechanism 6. The portion of the steel wire rope 32 in the area of ​​the slide assembly 4 is slidably arranged on the cableway 43, so that the cableway 43 supports the steel wire rope 32 and prevents the cleaning mechanism 6 from deviating from the track of the slideway when it is subjected to tension, thus preventing the cleaning mechanism 6 from getting stuck.

[0041] During operation, the two motors 21 start synchronously, and the motor shaft drives the winding wheel 31 to rotate. The winding wheel 31 winds up the wire rope 32, and the wire rope 32 pulls the cleaning mechanism 6 to move along the slide assembly 4. The cleaning mechanism 6 scoops the debris out of the water, and then the cleaning mechanism 6 rotates to pour the debris into the collection mechanism 8. The motor 21 rotates in the opposite direction and drives the winding wheel 31 to rotate in the opposite direction, so that the wire rope 32 is unwound. Under gravity, the cleaning mechanism 6 returns to its original position along the slide assembly 4.

[0042] like Figures 3 to 5As shown, the cleaning mechanism 6 includes a cleaning plate 61, a hinge shaft 62, a convex strip 63, a spring piece 64, an inclined block 65, a fixing block 66, and a pulley block 611. One end of the cleaning plate 61 abuts against the surface of the grid bars 53 inside the trash rack 5. When the cleaning plate 61 moves upward, it removes and scrapes away the shellfish, algae, and debris adhering to the surface of the grid bars 53. Both sides of the cleaning plate 61 are provided with mounting grooves 612 corresponding to slide rail 41 and slide rail 42. The pulley blocks 611 are installed in the mounting grooves 612. The number of pulley blocks 611 and the number of mounting grooves 611 are as follows: The number of pulleys 611 is the same, and multiple pulley blocks 611 slide along slide 41 and slide 42 respectively to prevent the cleaning plate 61 from getting stuck during movement; the cleaning plate 61 is provided with a through groove 68 at the position of the mounting groove 612 for slide 41 and slide 42 to pass through, and the cleaning plate 61 is provided with a groove 69 between two adjacent mounting grooves 612 for cable 43 to pass through. The cleaning plate 61 is provided with a through hole 610 on the side of the groove 69, and the steel wire rope 32 passes through the through hole 610 and is fixedly connected to the cleaning plate 61. The hinge shaft 62 is fixed at one end of the cleaning plate 61 near the filter mechanism 7. Multiple inclined blocks 65 are fixed at equal intervals at one end of the cleaning plate 61 near the debris rack 5. The inclined blocks 65 are positioned within the gap between two rack bars 53, with their inclined surfaces facing upwards and towards the cleaning plate 61. As the inclined blocks 65 move upwards with the cleaning plate 61, they can push debris within the gap between the two rack bars 53 towards the cleaning plate 61 and scrape away debris from the sides of the rack bars 53. A fixing block 66 is fixed to the side of the inclined blocks 65 away from the cleaning plate 61. The upper end of the fixing block 66 has an arc-shaped groove 67 adapted to the fixing shaft 51. The center of the arc-shaped groove 67 and the center of the fixing shaft 51 are on the same vertical line. When the cleaning plate 61 moves along the slide assembly 4 and reaches the arc-shaped section, the arc-shaped groove 67 is in close contact with the fixing shaft 51, and the cleaning plate 61 rotates around the fixing shaft 51 through the arc-shaped groove 67.

[0043] The lower surface of the cleaning plate 61 is provided with a fixing groove 613. Multiple protrusions 63 are fixed in the fixing groove 613 at equal intervals. Within the fixing groove 613, a gap is left on the side of the protrusions 63 near the hinge shaft 62. The protrusions 63 are arranged along the width direction of the channel 1. One end of the spring piece 64 is fixed in the filter mechanism 7. When the cleaning plate 61 is kept horizontal, the other end of the spring piece 64 extends into the gap in the fixing groove 613. The spring piece 64 and the protrusions 63 are spaced apart and do not contact each other. When the cleaning plate 61 moves upward, the spring piece 64 moves upward with the cleaning plate 61 and passes over the multiple protrusions 63 in sequence, striking the cleaning plate 61 multiple times, causing the cleaning plate 61 to vibrate. When the cleaning plate 61 tilts, it shakes the debris off.

[0044] Initially, the cleaning plate 61 is placed horizontally at the bottom of the channel 1. When the debris intercepted by the trash rack 5 needs to be cleaned, the motor 21 is started. Driven by the motor 21, the winding wheel 31 winds up the wire rope 32. The wire rope 32 pulls the cleaning plate 61 to move horizontally upward along the slide rail 1 41 and slide rail 2 42. The cleaning plate 61 scrapes off the shellfish, algae and debris adhering to the surface of the trash rack 5 near the cleaning plate 61. The tilting block 65 pushes the debris between the multiple rack bars 53 toward the cleaning plate 61 to prevent blockage when the water flows through, and scrapes off the shellfish, algae and debris adhering to the rack bars 53. As the cleaning plate 61 moves upward, the filter mechanism 7 is lifted, and the angle between the filter mechanism 7 and the cleaning plate 61 decreases as the cleaning plate 61 rises. The spring plate 64 fixed on the filter mechanism 7 deforms due to the decreasing angle and gradually moves closer to the protrusion 63. The cleaning plate 61 continues to rise, and the spring plate 64 passes over multiple protrusions 63 in sequence, causing the cleaning plate 61 to vibrate. As the cleaning plate 61 continues to move upward, when the arc-shaped groove 67 on the fixed block 66 abuts against the fixed shaft 51, the cleaning plate 61, under the traction of the wire rope 32, rotates along the arc section with the fixed shaft 51 as the center, moving closer to the collection mechanism 8. Combined with the vibration generated by the spring plate 64 repeatedly striking the cleaning plate 61, this allows debris to smoothly slide into the collection mechanism 8.

[0045] like Figure 3 and Figure 6 As shown, the filtration mechanism 7 includes a counterweight 71, a filter screen 72, and a telescopic plate 73. The diameter of the holes in the filter screen 72 is smaller than the spacing between the trash racks 5. The counterweight 71 is located at one end of the filter screen 72, ensuring that one end of the filter screen 72 remains in contact with the bottom of the channel 1. One end of the telescopic plate 73 is fixed to the other end of the filter screen 72, and ear plates 75 are fixed to both sides of the other end of the telescopic plate 73. The ear plates 75 are provided with rotating holes 76 through which the hinge shaft 62 passes. The telescopic plate 73 is hinged to the cleaning plate 61 via the hinge shaft 62. A second fixing groove 74 is provided on the lower surface of the telescopic plate 73. One end of a spring piece 64 is welded into the second fixing groove 74. The thickness of the spring piece 64 is consistent with the depth of the second fixing groove 74, ensuring that the telescopic plate 73 can fit tightly against the bottom of the channel 1 when in a horizontal state, preventing gaps between the telescopic plate 73 and the bottom of the channel 1 from causing mud and sand to enter.

[0046] Initially, the filter screen 72 and the telescopic plate 73 are horizontally set at the bottom of the channel 1. When there is too much debris and it needs to be cleaned, the winding wheel 31 winds up the wire rope 32, causing the cleaning plate 61 to move upward and one end of the telescopic plate 73 to move upward. Since the counterweight 71 on one side of the filter screen 72 provides gravity, one end of the filter screen 72 always remains in contact with the bottom of the channel 1. Therefore, the filter screen 72 and the telescopic plate 73 gradually tilt with the counterweight 71 as the fulcrum and intercept the passing debris. This prevents the debris from accumulating under the cleaning plate 61 under the water flow during the upward movement of the cleaning plate 61, so that when the cleaning plate 61 returns to its original position, the debris will be pressed under the cleaning plate 61. As the cleaning plate 61 continues to move upward and gradually tilts, the angle between the telescopic plate 73 and the cleaning plate 61 gradually decreases, causing the spring piece 64 fixed at the bottom of the telescopic plate 73 to deform. The contact position between one end of the spring piece 64 and the cleaning plate 61 changes, causing the cleaning plate 61 to vibrate continuously and shake off the debris. At the same time, the telescopic plate 73 extends to adapt to the height of the hinge shaft 62 on the cleaning plate 61. After the debris is poured into the collection mechanism 8, the cleaning plate 61 gradually resets. When the cleaning plate 61 resets downwards, it squeezes the telescopic plate 73, causing the telescopic plate 73 to contract. The filter screen 72 gradually returns to its initial position under the push of the cleaning plate 61. The bottom of the counterweight block 71 is equipped with ball bearings to prevent the filter screen 72 from getting stuck and unable to reset when the cleaning plate 61 resets. When the cleaning plate 61 enters the water and moves to the bottom of the channel 1, the filter screen 72 no longer intercepts the debris. The debris moves above the cleaning plate 61 under the action of the water flow and accumulates at the debris barrier 5. At the bottom of the channel 1, the debris intercepted by the filter screen 72 is pushed away from the debris barrier 5 by the counterweight block 71. When the filter screen 72 returns to the horizontal position, the debris passes over the counterweight block 71 and accumulates at the debris barrier 5.

[0047] like Figure 7 As shown, the collection mechanism 8 includes a collection chamber 81, a receiving plate 82, a rotating rod 83, and support legs 84. The collection chamber 81 is fixed inside the channel 1 by the support legs 84. There are four support legs 84, which are installed on both sides of the collection chamber 81 and bolted to the top of the channel 1. Part of the collection chamber 81 extends into the channel 1, and the upper edge of the collection chamber 81 is slightly higher than the highest point of the trash rack 5. The receiving plate 82 is rotatably connected to the side of the collection chamber 81 closest to the trash rack 5. Under normal conditions, the receiving plate 82 rests horizontally on the trash rack 5 and blocks the horizontal section of the rack bars 53, preventing debris from falling into the gap between the collection chamber 81 and the trash rack 5 when it is poured into the collection chamber 81.

[0048] During the process of the cleaning plate 61 pouring debris into the collection bin 81, the cleaning plate 61 rotates, and the receiving plate 82 abuts against the cleaning plate 61. The debris is poured into the collection bin 81 along the receiving plate 82. When the collection bin 81 is full of debris, the debris in the collection bin 81 is cleaned.

[0049] Working principle: Initially, the filter screen 72, the telescopic plate 73 and the cleaning plate 61 are all kept horizontal at the bottom of the channel 1, which does not affect the flow of water and debris; when the water flows through the trash rack 5, the debris in the water is intercepted by the trash rack 5.

[0050] When the debris intercepted at the trash rack 5 accumulates to a certain extent and affects the normal flow of water, the motors 21 on both sides of the mounting plate 12 are started. The motors 21 start to run, driving the winding wheel 31 to rotate. The winding wheel 31 winds up the wire rope 32, and the wire rope 32 slides on the cableway 43. At the same time, it pulls the cleaning plate 61, so that the cleaning plate 61 moves upward along the slide rail 1 41 and slide rail 2 42 while maintaining a horizontal state.

[0051] As the cleaning plate 61 moves upward, it scrapes off the shellfish, algae and debris adhering to the surface of the debris barrier 5. At the same time, the tilting block 65 pushes the debris between the multiple bars 53 toward the cleaning plate 61 to prevent blockage when the water flows through, and scrapes off the shellfish, algae and debris adhering to the multiple bars 53.

[0052] When the cleaning plate 61 moves to the arc section position, the arc groove 67 on the fixing block 66 abuts against the fixing shaft 51. Under the traction of the wire rope 32, the cleaning plate 61 rotates along the arc section with the fixing shaft 51 as the center towards the collection chamber 81, pouring the debris into the collection chamber 81.

[0053] As the cleaning plate 61 moves upward, the filter screen 72 and one end of the telescopic plate 73 are lifted. Since the telescopic plate 73 is hinged to the cleaning plate 61, and the spring piece 64 fixed on the telescopic plate 73 deforms as the upward angle of the cleaning plate 61 decreases, the spring piece 64 gradually moves towards the protrusion 63 at the bottom of the cleaning plate 61. As the cleaning plate 61 continues to rise, the spring piece 64 passes over the protrusion 63 and strikes the cleaning plate 61 multiple times, causing the cleaning plate 61 to vibrate. This vibration, combined with the tilt of the cleaning plate 61, allows the debris to slide more smoothly into the collection chamber 81.

[0054] Meanwhile, as the filter screen 72 and the telescopic plate 73 are lifted at one end, the counterweight 71 remains in close contact with the bottom of the channel 1, thus tilting the filter screen 72. As the cleaning plate 61 continues to move upward and tilt, the telescopic plate 73 extends to adapt to the height of the hinge shaft 62 on the cleaning plate 61. The tilted filter screen 72 intercepts debris, preventing it from flowing under the impact of the water flow to the bottom of the cleaning plate 61 and accumulating, which would make subsequent cleaning difficult.

[0055] After the cleaning work is completed, the motor 21 rotates in the reverse direction, driving the winding wheel 31 to rotate in the reverse direction, thereby unwinding the wire rope 32. Under its own weight, the cleaning plate 61 resets along slide rail 1 41 and slide rail 2 42. During the descent of the cleaning plate 61, the cleaning plate 61 pushes the filter screen 72 to tend towards horizontality. The bottom of the counterweight block 71 is equipped with ball bearings to prevent the filter screen 72 from getting stuck during reset. After the cleaning plate 61 enters the water and moves to the bottom of the channel 1, the filter screen 72 no longer intercepts debris. The debris is re-accumulated at the trash rack 5 under the action of the water flow. At the bottom of the channel 1, the debris intercepted by the filter screen 72 is pushed away from the trash rack 5 by the counterweight block 71. When the filter screen 72 returns to the horizontal position, the debris passes over the counterweight block 71 and accumulates again at the trash rack 5, waiting for the next cleaning.

[0056] When the collection chamber 81 is full of debris, the debris in the collection chamber 81 should be cleaned to ensure that the entire water conservancy trash rack 5 device can continue to work normally.

[0057] Furthermore, when it is necessary to intercept smaller debris, the motor 21 is started. The motor 21 drives the cleaning plate 61 to move along the slide until the filter screen 72 tends to be vertical and remains in this state, thereby placing the filter screen 72 in front of the debris barrier 5 and intercepting the small debris.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A water conservancy trash rack device, comprising a channel (1), a trash rack (5) fixed in the channel (1), and a collection mechanism (8) arranged on one side of the trash rack (5), the top of the channel (1) is fixed with two oppositely arranged mounting plates (12), characterized in that, Two installation plates (12) are provided with traction assemblies (3), the inner side walls of the two installation plates (12) are provided with slide assembly (4), the channel (1) is provided with a cleaning mechanism (6) and a filtering mechanism (7) connected with the cleaning mechanism (6), the slide assembly (4) comprises a slide one (41) and a slide two (42) fixed to the inner side wall of the installation plate (12), the cleaning mechanism (6) comprises a cleaning plate (61) abutting against the trash rack (5), the cleaning plate (61) is slidably connected with the slide one (41) and the slide two (42) respectively, the filtering mechanism (7) comprises a filter screen (72) and a telescopic plate (73), one end of the telescopic plate (73) is fixedly connected with the filter screen (72), the other end is hingedly connected with the cleaning plate (61), the other end of the filter screen (72) is tightly attached to the bottom of the channel (1); When cleaning, the cleaning plate (61) moves upwards along the slide one (41) and the slide two (42), the other end of the filter screen (72) is tightly attached to the bottom of the channel (1), the cleaning plate (61) is rotated and inclined to the collecting mechanism (8) when moving to the upper end of the trash rack (5).

2. The water pollution barrier device according to claim 1, wherein The bottom of the cleaning plate (61) is provided with a fixed groove one (613), a plurality of protrusions (63) are arranged at equal intervals in the fixed groove one (613), the protrusions (63) are arranged along the width direction of the channel (1), the bottom of the telescopic plate (73) is provided with a fixed groove two (74), the fixed groove two (74) is provided with a spring sheet (64) for hitting the cleaning plate (61), one end of the spring sheet (64) is fixed in the fixed groove two (74), the other end of the spring sheet (64) extends into the fixed groove one (613), when the cleaning plate (61) and the telescopic plate (73) rotate, the spring sheet (64) drives the protrusions (63) arranged at equal intervals to pass, and the sundries on the cleaning plate (61) are vibrated.

3. The water trash rack device according to claim 1, wherein The slide assembly (4) further comprises a cableway (43), the cableway (43) is fixed to the inner side wall of the installation plate (12), the cableway (43) is arranged between the slide one (41) and the slide two (42), the slide one (41), the slide two (42) and the cableway (43) all comprise a vertical section and an arc section.

4. The water trash rack device according to claim 3, wherein The cleaning mechanism (6) further comprises an inclined block (65) and a fixed block (66), the inclined block (65) is fixed to one side of the cleaning plate (61) close to the trash rack (5), the inclined block (65) extends into the interval between the trash racks (5), and the fixed block (66) is fixed to the other side of the inclined block (65) away from the cleaning plate (61).

5. The water trash rack device according to claim 3, wherein The cleaning mechanism (6) further comprises a pulley block (611), the cleaning plate (61) is provided with a mounting groove (612) corresponding to the slide one (41) and the slide two (42) on both sides, the pulley block (611) is installed in the mounting groove (612), the pulley block (611) and the slide one (41) and the slide two (42) are slidably connected, the cleaning plate (61) is provided with a through groove (68) for the slide one (41) and the slide two (42) to pass through in the middle of the mounting groove (612), and the cleaning plate (61) is provided with a groove one (69) for the cableway (43) to pass through between the two mounting grooves (612).

6. The water trash rack device according to claim 5, wherein The cleaning plate (61) is fixed with a hinged shaft (62) on the side away from the trash rack (5), the filtering mechanism (7) further comprises a counterweight (71), the counterweight (71) is fixed on one end of a filter screen (72), and the retractable plate (73) and the cleaning plate (61) are rotationally connected through the hinged shaft (62).

7. The water trash rack device of claim 3, wherein, The traction assembly (3) comprises a winding wheel (31) and a steel wire rope (32), the winding wheel (31) is rotationally arranged on the mounting plate (12), and the steel wire rope (32) is fixedly connected with the cleaning plate (61) along the cableway (43) and is wound on the winding wheel (31).

8. The water trash rack device of claim 4, wherein, The trash rack (5) comprises a grid bar (53), a fixed shaft (51) and a cross beam (52), the grid bar (53) is in the shape of L, the fixed shaft (51) is horizontally arranged on the horizontal section of the grid bar (53) along the width direction of the channel (1), and the fixed shaft (51) and the arc-shaped section are coaxially arranged, an arc-shaped groove (67) matched with the fixed shaft (51) is formed in the fixed block (66), and when the fixed block (66) rises to the highest position, the arc-shaped groove (67) and the fixed shaft (51) are coaxial, and the cross beam (52) is arranged at the bottom of the grid bar (53).

9. The water trash rack device of claim 8, wherein, The channel (1) is provided with a limiting groove (11) at the bottom, and the cross beam (52) is inserted into the limiting groove (11).

10. The water trash rack device of claim 1, wherein, The collecting mechanism (8) comprises a collecting bin (81) and a receiving plate (82), the receiving plate (82) is rotationally connected with the collecting bin (81), the collecting bin (81) is arranged on one side of the trash rack (5), and the receiving plate (82) is arranged above the trash rack (5).

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