Automatic filtering device for water supply of water conservancy project gate

Abstract

The invention provides an automatic filtering device during water supply of a water conservancy project gate, and relates to the technical field of water gate filtering devices. According to the automatic filtering device during water passing of the water conservancy project gate, a gate body is slidably connected to the interior of a supporting frame, a filter screen is fixedly connected to the interior of a base, a supporting plate is fixedly connected to the front side of the supporting frame, a driving assembly is arranged in the supporting plate, and first rotating rods are rotatably connected to the interiors of the two ends of a rotating plate correspondingly; second rotating rods are rotatably connected to the ends, away from the first rotating rod, of the two swing rods, a cleaning plate is fixedly connected to the front side of the moving plate, two sliding plates are slidably connected to the interior of the moving plate, and scraping plates are fixedly connected to the rear sides of the two sliding plates. According to the automatic filtering device during water passing of the water conservancy project gate, accumulated and blocked impurities are removed, blocking is prevented, water drainage is facilitated, additional power drive is not needed, energy conservation and emission reduction are achieved, self-cleaning is automatically conducted during filtering, and the water passing effect is improved.

Description

Technical Field

[0001] The present invention relates to a filtering device, in particular to an automatic filtering device for a water conservancy project gate during water passage, belonging to the technical field of water gate filtering devices. Background Art

[0002] For the water intake of ecological river regulation projects and sediment discharge and diversion channel type power generation projects in water conservancy and hydropower projects, especially for relatively independent ecological water area projects arranged in wide and shallow sandy rivers, a certain area of still water interval is required on the river beach to ensure the functions of aquatic plants, animals and water landscapes. At the same time, this area should not silt up during the normal operation of the river in flood and dry seasons.

[0003] When the gate plate is opened to connect the two sides of the river channel, the water in the upper reaches will flow along the water potential towards the filter plate of the water gate. Under the filtering action, the filter plate will block the sediment impurities flowing down from the upper reaches. At the same time, the impurities will adhere to the surface of the filter core plate due to the impact force of the river channel water potential to form a filter cake. Initially, both the filter plate and the filter cake can play the role of filtering impurities. However, as the thickness of the filter cake increases, the filtering effect will significantly decline, and even fail to achieve the filtering effect, resulting in the obstruction of the river water flow on both sides of the water gate. At the same time, the impurities in the upper reaches will gradually increase, affecting the water quality, and it is necessary to manually clean the surface of the filter screen frequently, which not only has low cleaning efficiency but also consumes a large amount of manpower during cleaning. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an automatic filtering device for a water conservancy project gate during water passage to solve the problems mentioned in the above background art.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic filtering device for a water conservancy project gate during water passing, comprising a base. On both sides inside the base, guide rails are embedded. At the top ends of the two guide rails, a support frame is fixedly connected. Inside the support frame, a gate body is slidably connected. Inside the base, a filter screen is fixedly connected. The filter screen is adapted to the gate body and is attached to the front side of the gate body. On the front side of the support frame, a support plate is fixedly connected. Inside the support plate, a driving component is arranged. At the bottom of the driving component, a fixed seat is provided. Inside the fixed seat, a rotating shaft is rotatably connected. At the rear end of the rotating shaft, a rotating plate is fixedly connected. Inside both ends of the rotating plate, a first rotating rod is rotatably connected. At one end of each of the two first rotating rods, a swing rod is fixedly connected. At the end of each of the two swing rods away from the first rotating rod, a second rotating rod is rotatably connected. On the front side of the fixed seat, an internal gear is fixedly connected. The rotating shaft penetrates through the internal gear and is rotatably connected to the internal gear. At the end of each of the two first rotating rods away from the swing rod, an external gear is fixedly connected. The two external gears are respectively meshed with both sides of the internal gear. At the front end of the rotating shaft, a moving plate is rotatably connected. On both sides inside the moving plate, sliding grooves are opened. The two second rotating rods respectively penetrate through the two sliding grooves and are slidably connected inside the two sliding grooves. On the front side of the moving plate, a cleaning plate is fixedly connected. Inside the moving plate, two sliding plates are slidably connected. The two second rotating rods are respectively fixedly connected to the two sliding plates. On the rear side of each of the two sliding plates, a scraping plate is fixedly connected.

[0006] Preferably, multiple scraping plates are respectively attached to both sides of the cleaning plate. Multiple scraping plates are all attached to the surface of the filter screen. The width of the cleaning plate is adapted to that of the filter screen. The bottom of the filter screen is arc-shaped. The cleaning plate is adapted to the bottom arc of the filter screen. When the scraping plate is driven by the sliding plate to move, impurities accumulated on the surface of the cleaning plate can be removed, preventing impurities from accumulating on both sides of the cleaning plate. And when the scraping plate moves, it can clean the filter screen and cooperate with the cleaning plate to remove impurities, improving the cleaning effect.

[0007] Preferably, the driving component includes a sleeve and a reciprocating lead screw. The sleeve is rotatably connected inside the support plate. The reciprocating lead screw is slidably connected inside the sleeve. At the bottom of the support plate, a threaded sleeve is fixedly connected. The reciprocating lead screw penetrates through the threaded sleeve and is threadedly connected to the threaded sleeve. By limiting the reciprocating lead screw through the threaded sleeve, the reciprocating lead screw makes a reciprocating up and down movement when rotating inside the threaded sleeve.

[0008] Preferably, on both sides inside the sleeve, limiting strips are integrally formed. On both sides of the reciprocating lead screw, limiting grooves are opened. The two limiting strips are respectively slidably connected inside the two limiting grooves and are adapted to the two limiting grooves. Through the cooperation of the limiting strips and the limiting grooves, when the sleeve rotates, it drives the limiting strips to rotate, and the limiting strips limit the limiting grooves, thereby driving the reciprocating lead screw to rotate synchronously.

[0009] Preferably, the bottom end of the limiting groove penetrates through the fixing seat and is rotatably connected to the fixing seat. A first bevel gear is fixedly connected to both the middle section of the fixing seat and one end of the limiting groove extending into the fixing seat where the rotating shaft is located. The two first bevel gears are meshed and connected. Limiting rods are fixedly connected to both sides of the top of the fixing seat. Both limiting rods penetrate through the support plate and are slidably connected to the support plate. When the reciprocating lead screw moves up and down reciprocally, it drives the fixing seat to move up and down. At the same time, when the reciprocating lead screw rotates, it drives the rotating shaft to rotate through the transmission of the first bevel gear.

[0010] Preferably, one end of the front side of the rotating shaft extending to the outside of the fixing seat is fixedly connected with a baffle plate, and the baffle plate corresponds to the angle of the rotating plate, so that when the rotating shaft rotates, it drives the baffle plate to rotate synchronously with the rotating plate, so as to keep the baffle plate protecting the two external gears.

[0011] Preferably, a cylinder is arranged at the rear side of the base, the cylinder is arranged at the rear side of the gate body, and a plurality of fixing blocks are fixedly connected to the outer side of the cylinder. All the plurality of fixing blocks are fixedly connected to the inner side of the base to fix the cylinder, so that the water flow passes through the inside of the cylinder after the gate body is opened.

[0012] Preferably, brackets are fixedly connected to both the front and rear sides inside the cylinder. The front sides of the two brackets are both conical to reduce the resistance to the water flow. A horizontal shaft is rotatably connected inside the two brackets, and an impeller is fixedly connected to the outer side of the horizontal shaft. The impeller is adapted to the inner diameter of the cylinder. When the water flow passes through the inside of the cylinder, it pushes the impeller to rotate, thereby driving the horizontal shaft to rotate.

[0013] Preferably, a lower fixing sleeve is fixedly connected to the front side of the top of the cylinder. A vertical shaft is rotatably connected inside the lower fixing sleeve. Second bevel gears are fixedly connected to both the bottom end of the vertical shaft and the front end of the horizontal shaft. The two second bevel gears are meshed and connected. An upper fixing sleeve is fixedly connected to the rear side of the support frame. The vertical shaft penetrates through the upper fixing sleeve and is rotatably connected to the upper fixing sleeve. The vertical shaft is driven by the second bevel gear, so that when the horizontal shaft rotates, it drives the vertical shaft to rotate.

[0014] Preferably, two vertical rods are rotatably connected to one side of the top of the base. Sprockets are fixedly connected to both the vertical shaft, the sleeve and the two vertical rods. A plurality of chains are arranged between the plurality of sprockets for transmission. When the vertical shaft rotates, it drives the sleeve to rotate through the transmission of the plurality of sprockets and chains.

[0015] The present invention provides a water conservancy project gate automatic filtering device during water passing, and the beneficial effects thereof are as follows:

[0016] 1. The automatic filtering device for the water gate of the water conservancy project. When the sleeve rotates, it is limited by the limiting strip in the limiting groove, thereby driving the reciprocating screw rod to rotate. When the reciprocating screw rod rotates, since the reciprocating screw rod is threadedly connected to the threaded sleeve, the reciprocating screw rod moves up and down reciprocally when rotating. When the reciprocating screw rod moves up and down, it drives the fixed seat to move up and down. When the fixed seat moves, the limiting rod slides inside the support plate to limit the fixed seat, improving the stability of the fixed seat during movement. When the fixed seat moves, it drives the rotating shaft to move, and the rotating shaft drives the rotating plate to move, so that the rotating plate drives the swing rod and the moving plate to move. Moreover, the moving plate drives the cleaning plate to move up and down, enabling the cleaning plate to clean the surface of the filter screen, removing the accumulated and blocked impurities, preventing blockage, facilitating drainage, without the need for additional power drive, saving energy and reducing emissions, automatically performing self-cleaning during filtration, improving the water passing effect, without the need for manual opening and closing, and being convenient to use.

[0017] 2. The automatic filtering device for the water gate of the water conservancy project enables the moving plate to only rotate around the rotating shaft. Therefore, driven by the two second rotating rods, the moving plate rotates, and then the moving plate drives the cleaning plate to rotate. So the cleaning plate not only sweeps up and down originally but also rotates, thereby improving the cleaning effect of the cleaning plate on the filter screen. Since the bottom shape of the filter screen is set as an arc shape, when the cleaning plate moves to the bottom and rotates, it can just sweep the entire bottom of the filter screen. At the same time, when the two swing rods drive the two second rotating rods to swing, the two second rotating rods reciprocally slide inside the two sliding grooves, causing the two second rotating rods to drive the two sliding plates to move reciprocally, and the two sliding plates drive the two scraping plates to move back and forth outside the cleaning plate, removing the impurities adhered and accumulated on both sides of the cleaning plate, which is beneficial to preventing too much impurities from accumulating on both sides when the cleaning plate is cleaning and affecting the cleaning effect. Only after a period of time, workers come to dig out the sediment on the upstream side, which can ensure that the flow rate and velocity of the downstream are not affected during the normal water passage of the water channel, and there is no need to clean the filter screen frequently. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 It is a schematic diagram of the rear structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the filter screen of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the fixed seat of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the internal gear of the present invention;

[0023] Figure 6 Structural schematic diagram of the rotating plate of the present invention;

[0024] Figure 7 Structural schematic diagram of the cleaning plate of the present invention;

[0025] Figure 8 Structural schematic diagram of the sliding groove of the present invention;

[0026] Figure 9 Structural schematic diagram of the moving plate of the present invention;

[0027] Figure 10 Structural schematic diagram of the sleeve of the present invention;

[0028] Figure 11 Structural schematic diagram of the cylinder of the present invention;

[0029] Figure 12 Structural schematic diagram of the support frame of the present invention;

[0030] Figure 13 Structural schematic diagram of the guide rail of the present invention;

[0031] Figure 14 Structural schematic diagram of the reciprocating screw rod of the present invention.

[0032] In the figure: 1, base; 2, guide rail; 3, support frame; 4, gate body; 5, filter screen; 6, fixed seat; 7, rotating shaft; 8, rotating plate; 9, first rotating rod; 10, swing rod; 11, external gear; 12, internal gear; 13, second rotating rod; 14, sliding plate; 15, scraping plate; 16, moving plate; 17, cleaning plate; 18, sliding groove; 19, support plate; 20, sleeve; 21, reciprocating screw rod; 22, limiting groove; 23, limiting strip; 24, threaded sleeve; 25, limiting rod; 26, first bevel gear; 27, cylinder; 28, bracket; 29, horizontal shaft; 30, impeller; 31, lower fixed sleeve; 32, vertical shaft; 33, second bevel gear; 34, chain; 35, vertical rod; 36, sprocket; 37, upper fixed sleeve; 38, baffle; 40, fixing block. Detailed implementation manners

[0033] The embodiment of the present invention provides an automatic filtering device for water passing through a water conservancy project gate.

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 ,Figure 13 and Figure 14 , including a base 1. Guide rails 2 are embedded on both sides inside the base 1. A support frame 3 is fixedly connected to the tops of the two guide rails 2. A gate body 4 is slidably connected inside the support frame 3. A filter screen 5 is fixedly connected inside the base 1. The filter screen 5 is adapted to the gate body 4 and fits against the front side of the gate body 4. A support plate 19 is fixedly connected to the front side of the support frame 3. A driving assembly is arranged inside the support plate 19. A fixing seat 6 is arranged at the bottom of the driving assembly. A rotating shaft 7 is rotatably connected inside the fixing seat 6. A rotating plate 8 is fixedly connected to the rear end of the rotating shaft 7. First rotating rods 9 are rotatably connected inside both ends of the rotating plate 8. One ends of the two first rotating rods 9 are fixedly connected with swing rods 10 respectively. Second rotating rods 13 are rotatably connected to the ends of the two swing rods 10 away from the first rotating rods 9. An internal gear 12 is fixedly connected to the front side of the fixing seat 6. The rotating shaft 7 penetrates through the internal gear 12 and is rotatably connected with the internal gear 12. External gears 11 are fixedly connected to the ends of the two first rotating rods 9 away from the swing rods 10 respectively. The two external gears 11 are respectively meshed with both sides of the internal gear 12. The front end of the rotating shaft 7 is rotatably connected with a moving plate 16. Chute grooves 18 are formed on both sides inside the moving plate 16. The two second rotating rods 13 respectively penetrate through the two chute grooves 18 and are slidably connected inside the two chute grooves 18. A cleaning plate 17 is fixedly connected to the front side of the moving plate 16. Two sliding plates 14 are slidably connected inside the moving plate 16. The two second rotating rods 13 are respectively fixedly connected with the two sliding plates 14. Scrapers 15 are fixedly connected to the rear sides of the two sliding plates 14. The multiple scrapers 15 respectively fit against both sides of the cleaning plate 17. The multiple scrapers 15 are all in contact with the surface of the filter screen 5. The width of the cleaning plate 17 is adapted to the filter screen 5. The bottom of the filter screen 5 is arc-shaped. The cleaning plate 17 is adapted to the arc at the bottom of the filter screen 5. When the sliding plates 14 drive the scrapers 15 to move, impurities accumulated on the surface of the cleaning plate 17 can be removed, preventing the impurities from accumulating on both sides of the cleaning plate 17. And when the scrapers 15 move, the filter screen 5 can be cleaned, cooperating with the cleaning plate 17 to remove impurities and improving the cleaning effect.

[0035] The driving component includes a sleeve 20 and a reciprocating lead screw 21. The sleeve 20 is rotatably connected to the inside of the support plate 19, and the reciprocating lead screw 21 is slidably connected to the inside of the sleeve 20. A threaded sleeve 24 is fixedly connected to the bottom of the support plate 19. The reciprocating lead screw 21 passes through the threaded sleeve 24 and is threadedly connected to the threaded sleeve 24. The reciprocating lead screw 21 is limited by the threaded sleeve 24, so that the reciprocating lead screw 21 moves up and down reciprocally when rotating inside the threaded sleeve 24. Limiting strips 23 are integrally formed on both sides inside the sleeve 20, and limiting grooves 22 are formed on both sides of the reciprocating lead screw 21. The two limiting strips 23 are respectively slidably connected to the inside of the two limiting grooves 22 and are adapted to the two limiting grooves 22. Through the cooperation of the limiting strip 23 and the limiting groove 22, when the sleeve 20 rotates, the limiting strip 23 is driven to rotate, and the limiting strip 23 limits the limiting groove 22, thereby driving the reciprocating lead screw 21 to rotate synchronously. The bottom end of the limiting groove 22 passes through the fixing seat 6 and is rotatably connected to the fixing seat 6. A first bevel gear 26 is fixedly connected to the middle section inside the fixing seat 6 and one end of the limiting groove 22 extending into the fixing seat 6 where the rotating shaft 7 is located. The two first bevel gears 26 are meshed and connected. Limiting rods 25 are fixedly connected to both sides of the top of the fixing seat 6. The two limiting rods 25 both pass through the support plate 19 and are slidably connected to the support plate 19. When the reciprocating lead screw 21 moves up and down reciprocally, the fixing seat 6 is driven to move up and down. At the same time, when the reciprocating lead screw 21 rotates, the rotating shaft 7 is driven to rotate through the transmission of the first bevel gear 26. A baffle 38 is fixedly connected to one end of the front side of the rotating shaft 7 extending outside the fixing seat 6. The angle of the baffle 38 corresponds to that of the rotating plate 8. When the rotating shaft 7 rotates, the baffle 38 is driven to rotate synchronously with the rotating plate 8, so that the baffle 38 keeps protecting the two external gears 11.

[0036] A cylinder 27 is provided at the rear side of the base 1. The cylinder 27 is arranged at the rear side of the gate body 4. A plurality of fixing blocks 40 are fixedly connected to the outer side of the cylinder 27, and the plurality of fixing blocks 40 are all fixedly connected to the inner side of the base 1 to fix the cylinder 27. After the gate body 4 is opened, water flows through the inside of the cylinder 27. Brackets 28 are fixedly connected to the front and rear sides inside the cylinder 27. The front sides of the two brackets 28 are both conical. A horizontal shaft 29 is rotatably connected inside the two brackets 28. An impeller 30 is fixedly connected to the outer side of the horizontal shaft 29. The impeller 30 is adapted to the inner diameter of the cylinder 27. When water flows through the inside of the cylinder 27, it pushes the impeller 30 to rotate, thereby driving the horizontal shaft 29 to rotate. A lower fixing sleeve 31 is fixedly connected to the front side of the top of the cylinder 27. A vertical shaft 32 is rotatably connected inside the lower fixing sleeve 31. Second bevel gears 33 are fixedly connected to the bottom end of the vertical shaft 32 and the front end of the horizontal shaft 29. The two second bevel gears 33 are meshed and connected. An upper fixing sleeve 37 is fixedly connected to the rear side of the support frame 3. The vertical shaft 32 passes through the upper fixing sleeve 37 and is rotatably connected to the upper fixing sleeve 37. The second bevel gears 33 are used to drive the vertical shaft 32, so that when the horizontal shaft 29 rotates, it drives the vertical shaft 32 to rotate. Two vertical rods 35 are rotatably connected to one side of the top of the base 1. Sprockets 36 are fixedly connected to the outer sides of the vertical shaft 32, the sleeve 20 and the two vertical rods 35. A plurality of chains 34 are arranged between the plurality of sprockets 36 for transmission. When the vertical shaft 32 rotates, it is transmitted through the plurality of sprockets 36 and the chains 34 to drive the sleeve 20 to rotate.

[0037] Specifically, when water does not need to flow usually, the gate body 4 is lowered into the guide rail 2 to block the base 1. At this time, the water flow inside the base 1 does not flow. When water needs to be diverted, the gate body 4 is lifted by the driving of the gate lifting structure, so that the gate body 4 rises inside the support frame 3, thereby allowing water to flow. When the water flows, the water flows through the filter screen 5 for filtration, so that the filter screen 5 filters out larger particles of sediment in the water. After long-term water flow, a large amount of sediment will accumulate in front of the filter screen 5, resulting in the congestion of sediment and the formation of a mud slope, which affects the upward flow of water here and will form waves, affecting the use of the water channel. And when too much sediment accumulates, the passability of the fixed seat 6 will become poor, reducing the flow rate and velocity of the downstream, affecting water diversion.

[0038] After the gate body 4 is opened, water flows through the filter screen 5 and enters the inside of the cylinder 27, causing the water flow to drive the impeller 30 inside the cylinder 27 to circulate, making the impeller 30 rotate and driving the horizontal shaft 29 to rotate. When the horizontal shaft 29 rotates, it drives the second bevel gear 33 to rotate. Through the transmission of the second bevel gear 33, the vertical shaft 32 is driven to rotate. When the vertical shaft 32 rotates, it drives the sleeve 20 to rotate through the transmission of the sprocket 36 and the chain 34. When the sleeve 20 rotates, it limits the position of the limiting groove 22 through the limiting strip 23, thereby driving the reciprocating screw rod 21 to rotate. When the reciprocating screw rod 21 rotates, since the reciprocating screw rod 21 is threadedly connected to the threaded sleeve 24, the reciprocating screw rod 21 makes a reciprocating up and down movement when rotating. When the reciprocating screw rod 21 moves up and down, it drives the fixed seat 6 to move up and down. When the fixed seat 6 moves, the limiting rod 25 slides inside the support plate 19 to limit the position of the fixed seat 6, improving the stability of the fixed seat 6 when moving. When the fixed seat 6 moves, it drives the rotating shaft 7 to move, and the rotating shaft 7 drives the rotating plate 8 to move, so that the rotating plate 8 drives the swing rod 10 and the moving plate 16 to move, and the moving plate 16 drives the cleaning plate 17 to move up and down, so that the cleaning plate 17 cleans the surface of the filter screen 5, removes the accumulated and blocked impurities, prevents blockage, is beneficial to drainage, does not require an additional power drive, saves energy and reduces emissions, automatically performs self-cleaning during filtration, improves the water passing effect, does not require manual opening and closing, and is convenient to use.

[0039] When the reciprocating lead screw 21 moves up and down, it rotates, causing the reciprocating lead screw 21 to drive the rotation of the rotating shaft 7 through the transmission of the first bevel gear 26, so that the rotating shaft 7 drives the rotating plate 8 to rotate. When the rotating plate 8 rotates, it drives the first rotating rods 9 at both ends to move, causing the two first rotating rods 9 to move in a circular motion around the rotating shaft 7 as the center. When the two first rotating rods 9 move, they drive the two external gears 11 to rotate. Since the two external gears 11 are respectively meshed and connected to both sides of the internal gear 12, and the internal gear 12 is fixedly connected to the fixed seat 6, when the two external gears 11 orbit outside the internal gear 12, they rotate under the limitation of the internal gear 12, causing the two external gears 11 to rotate while orbiting and revolving, so that the external gears 11 drive the first rotating rods 9 to rotate, thereby causing the first rotating rods 9 to drive the swing rods 10 to rotate around the first rotating rods 9 as the center, so that the two swing rods 10 respectively drive the two second rotating rods 13 to swing inside the two sliding grooves 18 opened inside the moving plate 16. Since the moving plate 16 is rotationally connected to the rotating shaft 7, the moving plate 16 can only rotate around the rotating shaft 7 as the center. Therefore, driven by the two second rotating rods 13, the moving plate 16 rotates, and then the moving plate 16 drives the cleaning plate 17 to rotate. Therefore, the cleaning plate 17 rotates while originally cleaning up and down, so as to improve the cleaning effect of the cleaning plate 17 on the filter screen 5. Since the bottom shape of the filter screen 5 is set to be arc-shaped, when the cleaning plate 17 moves to the bottom and rotates, it can just clean the entire bottom of the filter screen 5. At the same time, when the two swing rods 10 drive the two second rotating rods 13 to swing, the two second rotating rods 13 slide back and forth inside the two sliding grooves 18, causing the two second rotating rods 13 to drive the two sliding plates 14 to move back and forth, so that the two sliding plates 14 drive the two scraping plates 15 to move back and forth outside the cleaning plate 17, removing the impurities adhered and accumulated on both sides of the cleaning plate 17, which is beneficial to preventing too much impurities from accumulating on both sides of the cleaning plate 17 during cleaning and affecting the cleaning effect. Only after a period of time, the operator comes to dig out the sediment on the upstream side, which can ensure that the flow rate and velocity of the downstream are not affected during the normal water channel flow, and there is no need to clean the filter screen frequently.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic filtering device for a water conservancy project gate during water passing, comprising a base (1), characterized in that: On both sides inside the base (1), guide rails (2) are embedded. At the top ends of the two guide rails (2), a support frame (3) is fixedly connected. Inside the support frame (3), a gate body (4) is slidably connected. Inside the base (1), a filter screen (5) is fixedly connected. The filter screen (5) is adapted to the gate body (4) and is attached to the front side of the gate body (4). On the front side of the support frame (3), a support plate (19) is fixedly connected. Inside the support plate (19), a driving assembly is provided. At the bottom of the driving assembly, a fixed seat (6) is provided. Inside the fixed seat (6), a rotating shaft (7) is rotatably connected. At the rear end of the rotating shaft (7), a rotating plate (8) is fixedly connected. Inside both ends of the rotating plate (8), first rotating rods (9) are rotatably connected. At one end of each of the two first rotating rods (9), a swing rod (10) is fixedly connected. At the end of each of the two swing rods (10) away from the first rotating rod (9), a second rotating rod (13) is rotatably connected. In front of the fixed seat (6), an internal gear (12) is fixedly connected. The rotating shaft (7) penetrates through the internal gear (12) and is rotatably connected to the internal gear (12). At the end of each of the two first rotating rods (9) away from the swing rod (10), an external gear (11) is fixedly connected. The two external gears (11) are respectively meshed with both sides of the internal gear (12). At the front end of the rotating shaft (7), a moving plate (16) is rotatably connected. Inside both sides of the moving plate (16), sliding grooves (18) are formed. The two second rotating rods (13) respectively penetrate through the two sliding grooves (18) and are slidably connected inside the two sliding grooves (18). On the front side of the moving plate (16), a cleaning plate (17) is fixedly connected. Inside the moving plate (16), two sliding plates (14) are slidably connected. The two second rotating rods (13) are respectively fixedly connected to the two sliding plates (14). At the rear side of each of the two sliding plates (14), a scraping plate (15) is fixedly connected.

2. The automatic filtering device for a water conservancy project gate during water passage according to claim 1, wherein: A plurality of the scraping plates (15) are respectively attached to both sides of the cleaning plate (17). A plurality of the scraping plates (15) are all attached to the surface of the filter screen (5). The cleaning plate (17) is adapted to the width of the filter screen (5). The bottom of the filter screen (5) is arc-shaped. The cleaning plate (17) is adapted to the bottom arc of the filter screen (5).

3. The automatic filtering device during water passage of a water conservancy project gate according to claim 1, characterized in that: The driving assembly includes a sleeve (20) and a reciprocating lead screw (21). The sleeve (20) is rotatably connected inside the support plate (19). The reciprocating lead screw (21) is slidably connected inside the sleeve (20). At the bottom of the support plate (19), a threaded sleeve (24) is fixedly connected. The reciprocating lead screw (21) penetrates through the threaded sleeve (24) and is threadedly connected to the threaded sleeve (24).

4. The automatic filtering device for a water conservancy project gate during water passage according to claim 3, characterized in that: On both sides inside the sleeve (20), limiting strips (23) are integrally formed. On both sides of the reciprocating lead screw (21), limiting grooves (22) are formed. The two limiting strips (23) are respectively slidably connected inside the two limiting grooves (22) and are adapted to the two limiting grooves (22).

5. The automatic filtering device for a water conservancy project gate during water passage according to claim 4, characterized in that: The bottom end of the limiting groove (22) penetrates through the fixed seat (6) and is rotatably connected to the fixed seat (6). A first bevel gear (26) is fixedly connected to the middle section of the fixed seat (6) and one end of the limiting groove (22) extending into the fixed seat (6). The two first bevel gears (26) are meshed and connected. Limiting rods (25) are fixedly connected to both sides of the top of the fixed seat (6). The two limiting rods (25) penetrate through the support plate (19) and are slidably connected to the support plate (19).

6. The automatic filtering device for a water conservancy project gate during water passage according to claim 1, wherein: One end of the front side of the rotating shaft (7) extending to the outside of the fixed seat (6) is fixedly connected with a baffle (38). The baffle (38) corresponds to the angle of the rotating plate (8).

7. An automatic filtering device for a water conservancy project gate during water passage according to claim 1, characterized in that: A cylinder (27) is arranged at the rear side of the base (1). The cylinder (27) is arranged at the rear side of the gate body (4). A plurality of fixing blocks (40) are fixedly connected to the outer side of the cylinder (27). The plurality of fixing blocks (40) are fixedly connected to the inner side of the base (1).

8. The automatic filtering device for a water conservancy project gate during water passage according to claim 7, characterized in that: Supports (28) are fixedly connected to the front and rear sides inside the cylinder (27). The front sides of the two supports (28) are both conical. A horizontal shaft (29) is rotatably connected inside the two supports (28). An impeller (30) is fixedly connected to the outer side of the horizontal shaft (29). The impeller (30) is adapted to the inner diameter of the cylinder (27).

9. The automatic filtering device during water passing of a water conservancy project gate according to claim 8, characterized in that: A lower fixing sleeve (31) is fixedly connected to the front side of the top of the cylinder (27). A vertical shaft (32) is rotatably connected inside the lower fixing sleeve (31). A second bevel gear (33) is fixedly connected to the bottom end of the vertical shaft (32) and the front end of the horizontal shaft (29). The two second bevel gears (33) are meshed and connected. An upper fixing sleeve (37) is fixedly connected to the rear side of the support frame (3). The vertical shaft (32) penetrates through the upper fixing sleeve (37) and is rotatably connected to the upper fixing sleeve (37).

10. The automatic filtering device for a water conservancy project gate during water flow according to claim 9, characterized in that: Two vertical rods (35) are rotatably connected to one side of the top of the base (1). Sprockets (36) are fixedly connected to the outer sides of the vertical shaft (32), the sleeve (20) and the two vertical rods (35). A plurality of chains (34) are arranged between the plurality of sprockets (36) for transmission.

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