Drainage device for water conservancy project

Abstract

The drainage device comprises a drainage water pipe, a water inlet is formed in the water inlet end of the drainage water pipe, a water outlet is formed in the water outlet end of the drainage water pipe, a filter screen is arranged in an inner cavity of the drainage water pipe, supporting legs are arranged on the periphery of the drainage water pipe, and an inlet and outlet hole is formed in the end, close to the water outlet, of the drainage water pipe. Mounting brackets are respectively fixed on the peripheries of the drainage water pipes on the two sides of the inlet and outlet holes; lifting mechanisms are arranged on the mounting brackets; the lifting mechanism comprises a fixing support, a driving gear, a rotating shaft, a limiting block, a driving motor, a rack and a lifting frame. The high-pressure spray head is fed into the drainage water pipe through the lifting mechanism, and high-pressure water flow opposite to the water flow direction is sprayed out through the high-pressure spray head, so that garbage remaining on the filter screen is flushed down from the filter screen, and the problem that the filter screen is blocked by the garbage is solved.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a diversion device for water conservancy projects. Background Technology

[0002] Water conservancy projects are a general term for various engineering projects constructed to control, utilize, and protect surface and groundwater resources. They involve controlling and regulating surface and groundwater to achieve the goals of mitigating harm and promoting benefits; these projects are also known as water engineering. Water in its natural state does not fully meet human needs. Only by constructing water conservancy projects can water flow be controlled, floods prevented, and water volume regulated and distributed to meet the water needs of people's lives and production.

[0003] With social development, the country is investing more and more in water conservancy projects. The diversion pipes of water conservancy projects play a very important role in the diversion process. At present, the water conservancy project equipment does not take into account the problem of unclogging the filter holes. Debris intercepted by the filter screen (such as floating objects, silt, aquatic plants, etc.) is easy to remain on the surface of the filter screen or embedded in the pores, resulting in a decrease in filtration efficiency. Since the filter screen is located inside the diversion pipe, the staff cannot clean the filter screen inside the diversion pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a diversion device for water conservancy projects to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a diversion device for water conservancy projects, comprising a diversion pipe, wherein the inlet end of the diversion pipe is provided with an inlet, the outlet end of the diversion pipe is provided with an outlet, a filter screen is provided in the inner cavity of the diversion pipe, a support foot is provided on the outer periphery of the diversion pipe, an inlet and outlet hole is provided on one end of the diversion pipe near the outlet, and mounting brackets are respectively fixed on the outer periphery of the diversion pipe on both sides of the inlet and outlet hole, and a lifting mechanism is provided on the mounting bracket;

[0006] The lifting mechanism includes a fixed bracket, a drive gear, a rotating shaft, a limit block, a drive motor, a rack, and a lifting frame;

[0007] Two fixed brackets are fixed on the mounting bracket, and a drive gear is provided between the two fixed brackets. The two ends of the drive gear are rotatably connected to the two fixed brackets through rotating shafts. A limit block is fixed at the end of the rotating shaft away from the drive gear, and the limit block is in contact with the fixed bracket. The drive motor is fixed on the mounting bracket and is connected to the limit block. The drive gear is meshed with a rack, and the rack extends into the drainage pipe. The lifting frame is fixedly connected to the bottom of the rack.

[0008] The lifting frame is also provided with a fixed base, a high-pressure nozzle and a rotating mechanism. The rotating mechanism is provided at the bottom of the fixed base and is located between the fixed base and the lifting frame. The high-pressure nozzle is provided at the top of the fixed base. The high-pressure nozzle has a high-pressure water pipe at its inlet end and faces the filter screen at its outlet end.

[0009] Preferably, a dovetail groove is fixedly provided on the top of the fixed bracket, and grooves are provided on both sides of the rack. The dovetail groove and the groove are slidably engaged to form a guide and limiting mechanism.

[0010] Preferably, a sealing cover is fixedly provided at the bottom of the lifting frame, and a sealing rubber is provided at the top of the sealing cover, and the sealing cover is in contact with the inner wall of the drain pipe.

[0011] Preferably, the rotating mechanism includes a first rotating shaft, a second rotating shaft, a first gear, a second gear, and a connecting rod;

[0012] The first gear is rotatably connected to the lifting frame via a first rotating shaft, and the second gear is rotatably connected to the lifting frame via a second rotating shaft. The first gear and the second gear mesh with each other. The connecting rod is fixedly connected to the second gear, and the fixed seat is fixedly connected to the first gear.

[0013] Preferably, a waste trough is provided at one end of the water pipe near the water inlet, and the waste trough is located below the filter screen, with a bottom cover threaded to the bottom of the waste trough.

[0014] Compared with existing technologies, the advantages of this invention are as follows: This invention uses a lifting mechanism to send a high-pressure nozzle into the interior of the water pipe. The high-pressure nozzle sprays a high-pressure water stream in the opposite direction to the water flow, thereby flushing away the debris remaining on the filter screen and solving the problem of debris clogging the filter screen. The drive motor of the lifting mechanism provides power to the drive gear. The drive gear meshes with a rack, and the rotation of the drive gear drives the rack to move up and down. The rack is connected to the lifting frame, which in turn drives the lifting frame to move up and down inside the water pipe. The movement of the lifting frame moves the high-pressure nozzle installed inside the lifting frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the water pipe of this utility model;

[0017] Figure 3 This is a schematic diagram of the external structure of the lifting mechanism and the rotating mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the rotating mechanism of this utility model;

[0020] Figure 6 This is a schematic diagram of the high-pressure nozzle of this utility model in operation;

[0021] Figure 7 This is a schematic diagram of the high-pressure nozzle of this utility model leaving the water pipe after completing its work.

[0022] In the picture:

[0023] 11. Drainage pipe; 12. Inlet; 13. Outlet; 14. Garbage trough; 15. Bottom cover; 16. Inlet / outlet hole; 17. Filter screen; 18. Support leg; 20. Lifting mechanism; 21. Fixed bracket; 22. Drive gear; 23. Rotating shaft; 24. Limit block; 25. Drive motor; 26. Rack; 27. Lifting frame; 31. Mounting bracket; 41. Fixed base; 42. High-pressure nozzle; 43. High-pressure water pipe; 50. Rotating mechanism; 51. Rotating shaft one; 52. Rotating shaft two; 53. Gear one; 54. Gear two; 55. Connecting rod; 61. Sealing cover; 62. Sealing rubber; 71. Groove; 72. Dovetail groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 7 An embodiment of this utility model provides a diversion device for water conservancy projects, including a diversion pipe 11, an inlet 12 at the inlet end of the diversion pipe 11, an outlet 13 at the outlet end of the diversion pipe 11, a filter screen 17 inside the diversion pipe 11, a support leg 18 on the outer periphery of the diversion pipe 11, an inlet / outlet hole 16 at one end of the diversion pipe 11 near the outlet 13, mounting brackets 31 fixed on the outer periphery of the diversion pipe 11 on both sides of the inlet / outlet hole 16, and a lifting mechanism 20 on the mounting brackets 31.

[0026] The lifting mechanism 20 includes a fixed bracket 21, a drive gear 22, a rotating shaft 23, a limit block 24, a drive motor 25, a rack 26, and a lifting frame 27;

[0027] Two fixed brackets 21 are fixed on the mounting bracket 31. A drive gear 22 is provided between the two fixed brackets 21. The two ends of the drive gear 22 are rotatably connected to the two fixed brackets 21 through a rotating shaft 23. A limit block 24 is fixed at the end of the rotating shaft 23 away from the drive gear 22, and the limit block 24 is in contact with the fixed bracket 21. A drive motor 25 is fixed on the mounting bracket 31. The drive motor 25 is connected to the limit block 24. The drive gear 22 is meshed with a rack 26, and the rack 26 extends into the drainage pipe 11. The lifting frame 27 is fixedly connected to the bottom of the rack 26.

[0028] The lifting frame 27 is also equipped with a fixed base 41, a high-pressure nozzle 42 and a rotating mechanism 50. The rotating mechanism 50 is located at the bottom of the fixed base 41 and is located between the fixed base 41 and the lifting frame 27. The high-pressure nozzle 42 is located at the top of the fixed base 41. The high-pressure nozzle 42 has a high-pressure water pipe 43 at its inlet end and the outlet end of the high-pressure nozzle 42 faces the filter screen 17.

[0029] Water flows into the drain pipe 11 from the inlet 12. Impurities in the water flow remain on the surface of the filter screen 17 or are embedded in the pores under the influence of the water flow.

[0030] Before cleaning the debris on the filter screen 17, the valve needs to be closed to shut off the water flow in the drain pipe 11. After shutting off the water flow in the drain pipe 11, the high-pressure nozzle 42 is sent into the drain pipe 11 through the inlet / outlet hole 16 and the lifting mechanism 20. The high-pressure water jet from the nozzle 42 is in the opposite direction to the water flow, which can wash away the debris remaining on the surface of the filter screen 17 or embedded in the pores. The debris washed off by the high-pressure nozzle 42 will fall into the garbage bin 14 below the filter screen 17. The staff opens the bottom cover 15 of the garbage bin 14 and removes the debris washed off by the high-pressure nozzle 42 from the garbage bin 14. At this time, the cleaning of the filter screen 17 is completed.

[0031] After the staff completed the cleaning, they reinstalled the bottom cover 15, and used the lifting mechanism 20 to remove the high-pressure nozzle 42 from the inside of the water pipe 11. They then sealed the inlet and outlet holes 16 to prevent water from overflowing. Finally, they reopened the valve to allow water to flow into the water pipe 11.

[0032] The working process of the lifting mechanism 20 is as follows;

[0033] The mounting bracket 31, fixed to the drainage pipe 11, provides support for the drive motor 25 and the fixed bracket 21. Both ends of the drive gear 22 are rotatably connected to the two fixed brackets 21 via rotating shafts 23, and the drive gear 22 is driven to rotate by the rotating shafts 23. A limiting block 24 fixed to the end of the rotating shaft 23 facing away from the drive gear 22 will engage with the fixed bracket 21, thereby limiting the movement of the drive gear 22. The drive shaft of the drive motor 25 is fixedly connected to the limiting block 24 on the rotating shaft 23. When the drive shaft of the drive motor 25 starts to rotate, it will drive the limiting block 24 to rotate. The rotation of the limiting block will drive the rotating shaft 23 to rotate, and finally, the rotating shaft 23 will drive the drive gear 22 to rotate together.

[0034] The drive motor 25 meshes with the rack 26, so when the drive gear 22 rotates, it drives the rack 26 to continue moving. The rack 26 moves up and down under the drive of the drive motor 25. The rack 26 is fixedly connected to the lifting frame 27, and its up-and-down movement drives the lifting frame 27 to move up and down. Since the high-pressure nozzle 42 is located in the lifting frame 27, the lifting frame 27 drives the high-pressure nozzle 42 to move up and down within the inlet / outlet hole 16.

[0035] The lifting mechanism 20 has two sets of components: a fixed bracket 21, drive gears 22, rotating shaft 23, drive motor 25, and rack 26. The two sets of drive gears 22 provide lifting power to the lifting frame 27 from both sides via the rack 26, making the lifting process of the lifting frame 27 more stable. Furthermore, the two sets of drive motors 25 are set to rotate at the same speed to prevent differences in speed between the two sets of drive motors 25 from affecting the lifting stability of the lifting frame 27.

[0036] Specifically, the rotating mechanism 50 includes a first rotating shaft 51, a second rotating shaft 52, a first gear 53, a second gear 54, and a connecting rod 55;

[0037] Gear 1 53 is rotatably connected to lifting frame 27 via shaft 1 51, and gear 2 54 is rotatably connected to lifting frame 27 via shaft 2 52. Gear 1 53 and gear 2 54 mesh with each other, connecting rod 55 is fixedly connected to gear 2 54, and fixed seat 41 is fixedly connected to gear 1 53.

[0038] In addition to the lifting mechanism 20 that enables the high-pressure nozzle 42 to move up and down, this device is also equipped with a rotating mechanism 50 to enable the high-pressure nozzle 42 to swing left and right during operation, thereby increasing the cleaning range. Its working process is as follows:

[0039] The lifting frame 27 has two rotating shafts fixed inside: a first rotating shaft 51 and a second rotating shaft 52. A first gear 53 rotates on the outer side of the first rotating shaft 51, and a second gear 54 rotates on the outer side of the second rotating shaft 52. The first gear 53 is fixedly connected to the fixed base 41, and the connecting rod 55 is fixedly connected to the second gear 54. The first gear 53 and the second gear 54 mesh with each other. When the operator rotates the connecting rod 55, the connecting rod 55 drives the second gear 54 to rotate, which in turn drives the first gear 53 to rotate, which in turn drives the fixed base 41 to rotate. Ultimately, the high-pressure nozzle 42 rotates along with the fixed base 41.

[0040] Specifically, a dovetail groove 72 is fixedly provided on the top of the fixed bracket 21, and grooves 71 are provided on both sides of the rack 26. The dovetail groove 72 and the grooves 71 are slidably engaged to form a guide and limiting mechanism. The dovetail groove 72 fixed on the top of the fixed bracket 21 will cooperate with the grooves 71 on both sides of the rack 26 to limit the rack 26 and prevent the rack 26 from wobbling left and right during sliding.

[0041] Specifically, a sealing cover 61 is fixedly installed at the bottom of the lifting frame 27, and a sealing rubber 62 is installed at the top of the sealing cover 61. The sealing cover 61 fits against the inner wall of the drainage pipe 11. When the lifting frame 27 is raised to the inlet, the upper wall of the sealing cover 61 fits against the inner wall of the drainage pipe 11 and is compressed. The sealing rubber 62 is located between the sealing cover 61 and the drainage pipe 11, and its deformation after being compressed fills the gap between the sealing cover 61 and the drainage pipe 11, thereby achieving a sealing effect. The curvature of the sealing cover 61 fits against the inner wall of the drainage pipe 11, which further improves the sealing performance of the sealing cover 61 against the drainage pipe 11.

[0042] Specifically, a waste trough 14 is provided at one end of the water pipe 11 near the water inlet 12, and the waste trough 14 is located below the filter screen 17. A bottom cover 15 is threadedly connected to the bottom of the waste trough 14. The waste trough 14 is used to receive debris washed off the filter screen 17. After opening the bottom cover 15, the staff can remove the debris from the waste trough 14.

[0043] Working principle:

[0044] When staff need to clean debris from the filter screen 17, they should first close the valve on the drain pipe 11 to cut off the water flow.

[0045] Workers activate the lifting mechanism 20 using the inlet / outlet hole 16 on the water pipe 11. The mounting bracket 31, fixed to the water pipe 11, provides support for the drive motor 25 and the fixed bracket 21. The drive motor 25 drives the shaft to rotate, causing the connected limit block 24 to rotate, which in turn causes the rotating shaft 23 to drive the drive gear 22 to rotate. Since the drive gear 22 meshes with the rack 26, the rack 26, driven by the drive gear 22, causes the lifting frame 27 and the high-pressure nozzle 42 fixed therein to descend along the inlet / outlet hole 16 and enter the interior of the water pipe 11.

[0046] The operator rotates the connecting rod 55, which, through the transmission between gear 1 53 and gear 2 54, causes the high-pressure nozzle 42 to swing to a suitable angle, expanding the cleaning range.

[0047] The operator activates the high-pressure nozzle 42, which sprays a high-pressure water jet in the opposite direction to the water flow, washing away debris remaining on the surface of the filter screen 17 or embedded in its pores. The washed-off debris falls into the waste bin 14 below the filter screen 17.

[0048] After cleaning, the high-pressure nozzle 42 is turned off, the bottom cover 15 of the garbage trough 14 is opened, and the staff removes the debris from the garbage trough 14.

[0049] The staff restarted the lifting mechanism 20 to remove the high-pressure nozzle 42 from the inside of the water pipe 11. When the lifting frame 27 was raised to the inlet / outlet hole 16, the sealing cover 61 pressed against the inner wall of the water pipe 11, and the sealing rubber 62 filled the gap due to the compression deformation, thus achieving a seal and preventing water from overflowing.

[0050] The staff reopened the valve on the drainage pipe 11, restored the water flow to the drainage pipe 11, and the device continued to operate normally.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A diversion device for water conservancy projects, comprising a diversion pipe (11), wherein the inlet end of the diversion pipe (11) is provided with an inlet (12), the outlet end of the diversion pipe (11) is provided with an outlet (13), a filter screen (17) is provided in the inner cavity of the diversion pipe (11), and a support (18) is provided on the outer periphery of the diversion pipe (11), characterized in that: The water pipe (11) is provided with an inlet / outlet hole (16) at one end near the outlet (13). The water pipe (11) on both sides of the inlet / outlet hole (16) is fixed with a mounting bracket (31). The mounting bracket (31) is provided with a lifting mechanism (20). The lifting mechanism (20) includes a fixed bracket (21), a drive gear (22), a rotating shaft (23), a limiting block (24), a drive motor (25), a rack (26), and a lifting frame (27); Two fixed brackets (21) are fixed on the mounting bracket (31), and a drive gear (22) is provided between the two fixed brackets (21). The two ends of the drive gear (22) are rotatably connected to the two fixed brackets (21) through a rotating shaft (23). A limit block (24) is fixed at the end of the rotating shaft (23) away from the drive gear (22), and the limit block (24) is in contact with the fixed bracket (21). The drive motor (25) is fixed on the mounting bracket (31), and the drive motor (25) is connected to the limit block (24) in a transmission connection. The drive gear (22) is meshed with a rack (26), and the rack (26) extends into the drainage pipe (11). The lifting frame (27) is fixedly connected to the bottom of the rack (26). The lifting frame (27) is also provided with a fixed base (41), a high-pressure nozzle (42) and a rotating mechanism (50). The rotating mechanism (50) is provided at the bottom of the fixed base (41) and is located between the fixed base (41) and the lifting frame (27). The high-pressure nozzle (42) is provided at the top of the fixed base (41). The high-pressure nozzle (42) has a high-pressure water pipe (43) at its inlet end and the outlet end of the high-pressure nozzle (42) faces the filter screen (17).

2. The drainage device for hydraulic engineering according to claim 1, characterized in that: The top of the fixed bracket (21) is fixedly provided with a dovetail groove (72), and the rack (26) has grooves (71) on both sides. The dovetail groove (72) and the groove (71) are slidably engaged to form a guide and limiting mechanism.

3. The drainage device for hydraulic engineering according to claim 1, characterized in that: A sealing cover (61) is fixedly installed at the bottom of the lifting frame (27), and a sealing rubber (62) is installed at the top of the sealing cover (61). The sealing cover (61) is in contact with the inner wall of the drainage pipe (11).

4. The drainage device for hydraulic engineering according to claim 1, characterized in that: The rotating mechanism (50) includes a first rotating shaft (51), a second rotating shaft (52), a first gear (53), a second gear (54), and a connecting rod (55); The first gear (53) is rotatably connected to the lifting frame (27) via the first rotating shaft (51), the second gear (54) is rotatably connected to the lifting frame (27) via the second rotating shaft (52), the first gear (53) and the second gear (54) mesh with each other, the connecting rod (55) is fixedly connected to the second gear (54), and the fixed seat (41) is fixedly connected to the first gear (53).

5. The drainage device for hydraulic engineering according to claim 1, characterized in that: The drain water pipe (11) is provided with a garbage groove (14) near one end of the water inlet (12), and the garbage groove (14) is located below the filter screen (17), and the bottom of the garbage groove (14) is threadedly connected with a bottom groove cover (15).

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