A water conservancy project anti-leakage drainage pipeline

Abstract

The present invention provides a leakage-proof drainage pipe for a water conservancy project, which relates to the technical field of drainage pipes and comprises a vertical drainage pipe, a horizontal drainage pipe, an impact-resistant component and a traction mechanism. The impact-resistant component is sleeved under the vertical drainage pipe, a support bracket is sleeved on the surface of the horizontal drainage pipe, a plug-in sleeve is integrally formed at the bottom of the impact-resistant component, a right-angle bending structure is provided at one end of the horizontal drainage pipe, and the plug-in sleeve is embedded in one end of the horizontal drainage pipe, and a supporting ring is installed at the bottom of the traction mechanism. The present invention reduces the impact force of the falling water flow from the top of the vertical drainage pipe through the impact-resistant component, thereby improving the stability of the horizontal drainage pipe, extending the service life, and reducing the probability of leakage, and can automatically and centrally discharge the sludge blocked at the impact-resistant component with the help of an internal cleaning component, and the cleaning process can be achieved under both low flow and high flow conditions.

Description

Technical Field

[0001] The invention relates to the technical field of drainage pipes, in particular to an anti-leakage drainage pipe for a water conservancy project. Background Art

[0002] ‌Installing drainage pipes in soft soil foundations can accelerate soil consolidation, improve the bearing capacity of the foundation, and ensure the stability of the project. In dam construction, drainage pipes can reduce the height of the infiltration line or change the position of the infiltration line, reduce the seepage pressure, and improve the anti-slip ability and stability of the dam. Through reasonable design and construction, the safety and stability of water conservancy projects can be effectively guaranteed.

[0003] ‌ In the prior art, drainage pipes used in water conservancy projects often have multiple bends according to construction needs, including the switching process from vertical downward flow to horizontal flow. In this bend area, it is very easy for the water pressure to be too high, resulting in a long-term impact effect on the bottom area of ​​the bottom horizontal pipe. The continuous impact force will cause one end of the horizontal pipe to tilt downward, thereby increasing the probability of pipe rupture and leakage. On the other hand, conventional drainage pipes have a built-in filtering function, but the sludge impurities generated after filtering cannot be efficiently cleaned and discharged. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a leakage-proof drainage pipe for water conservancy projects to solve the problems raised in the above-mentioned background technology. The present invention reduces the impact force of the falling water flow from the top of the vertical drainage pipe through an impact-resistant component, thereby improving the stability of the horizontal drainage pipe, extending the service life, and reducing the probability of leakage. With the help of the internal cleaning component, the sludge blocked by the impact-resistant component can be automatically discharged in a centralized manner, and the cleaning process can be achieved under both low flow and high flow conditions.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a leakage-proof drainage pipe of a water conservancy project, comprising a drainage pipe body, the drainage pipe body comprising a vertical drainage pipe, a horizontal drainage pipe, an impact-resistant component and a traction mechanism, the impact-resistant component is sleeved under the vertical drainage pipe, the surface of the horizontal drainage pipe is sleeved with a supporting bracket, the bottom of the impact-resistant component is integrally formed with a plug-in sleeve, one end of the horizontal drainage pipe is provided with a right-angle bending structure, and the plug-in sleeve is embedded in one end of the horizontal drainage pipe, a supporting ring is installed at the bottom of the traction mechanism, the supporting ring is sleeved on the surface of the plug-in sleeve, a cleaning component is installed inside the impact-resistant component, and the bottom of the cleaning component is embedded in the inside of the plug-in sleeve, one end of the horizontal drainage pipe is integrally formed with a sewage pipe, the end of the sewage pipe is filled with a sealing plug, and a diversion mechanism is installed inside the vertical drainage pipe, and the central axis of the diversion mechanism coincides with the central axis of the cleaning component.

[0006] Furthermore, the impact-resistant component includes a pressure-bearing sleeve and a screen. The bottom of the pressure-bearing sleeve is integrally formed with a pressure plate, a filter interlayer is provided on the inner side of the pressure plate, a screen is welded on the inner side of the filter interlayer, a support plate is welded on the top of the screen, and a support groove is provided in the middle of the support plate.

[0007] Furthermore, a drainage hole is provided at the bottom of the plug-in sleeve, an inner drainage sleeve is welded to the bottom of the drainage hole, an outer drainage sleeve is integrally formed on the inner wall of one end of the horizontal drainage pipe, and the inner drainage sleeve is embedded in the outer drainage sleeve.

[0008] Furthermore, a socket is provided at the top of the pressure-bearing sleeve, and the bottom of the vertical drainage pipe is embedded in the socket. A sealing layer is provided on the inner wall of the socket and the surface of the plug-in sleeve, and the interior of the outer sewage sleeve is connected to the interior of the sewage pipe.

[0009] Furthermore, the traction mechanism includes a support ring, a lifting plate and a fixed plate. The support ring rests on the bottom of the pressure plate, a bottom rotating shaft is welded on the surface of the support ring, a traction plate is sleeved on the surface of the bottom rotating shaft, and a top rotating shaft is inserted into the bottom of the lifting plate.

[0010] Furthermore, the top end of the traction plate is sleeved on the surface of the top-layer rotating shaft, an anchor rod is inserted on one side of the fixed plate, threaded holes are provided on the surfaces of the lifting plate and the fixed plate, and the lifting plate is installed and connected to the surface of the fixed plate by bolts, and the fixed plate and the lifting plate are symmetrically installed on both sides of the impact-resistant assembly.

[0011] Furthermore, the cleaning component includes a conical column and a scraper, the surface of the conical column is integrally formed with spiral blades, the bottom of the conical column is integrally formed with a support shaft, and the bottom end of the support shaft is sleeved with a docking bearing.

[0012] Furthermore, the docking bearing is embedded in the interior of the supporting groove, and a lower hanging rod is welded to the bottom of the conical column. A scraper is integrally formed at the bottom of the lower hanging rod. The scraper is embedded in the interior of the filter interlayer, and the edge of the scraper is in contact with the inner wall of the filter interlayer.

[0013] Furthermore, the guide mechanism includes a guide sleeve, an inner arc plate and an outer arc plate. A support rod is welded on the inner wall of the vertical drainage pipe. The end of the support rod is welded and fixed to the surface of the guide sleeve. The inner arc plate is integrally formed on the top of the guide sleeve, and a plurality of through holes are opened on the surface of the guide sleeve.

[0014] Furthermore, an inner convex plate is welded on the inner wall of the vertical drainage pipe, a spring rod is inserted into the surface of the inner convex plate, an outer arc plate is welded on the top of the spring rod, and the inner circle of the outer arc plate is aligned with the edge of the inner arc plate.

[0015] Beneficial effects of the present invention:

[0016] 1. The anti-leakage drainage pipe of the water conservancy project reduces the impact force of the falling water flow from the top of the vertical drainage pipe through the impact-resistant components, thereby improving the stability of the horizontal drainage pipe and extending its service life. When used for a long time, one end of the horizontal drainage pipe will not tilt downward due to the high-pressure impact of the water flow, reducing the probability of leakage.

[0017] 2. With the help of the internal cleaning components, the anti-leakage drainage pipe of the water conservancy project can divert the water flowing in from the top to the side, and also drive the entire conical column to rotate in the opposite direction with the impact of the water flow, so as to automatically discharge the sludge blocked by the impact-resistant components in a centralized manner in cooperation with the scraper at the bottom, thus realizing the functions of self-cleaning and automatic discharge.

[0018] 3. The anti-leakage drainage pipe of the water conservancy project is equipped with a diversion mechanism inside the vertical drainage pipe. With the help of the diversion mechanism, the water flow in the low flow state can be centrally guided, and a larger diversion area can be opened for the water flow in the high flow state, so as to achieve the purpose of driving the cleaning component at the bottom to rotate in both low and high flow states to smoothly complete the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the appearance of a water conservancy project anti-leakage drainage pipeline of the present invention;

[0020] Figure 2This is an internal cross-sectional view of an anti-leakage drainage pipe for a water conservancy project according to the present invention;

[0021] Figure 3 It is a schematic diagram of the connection between the impact-resistant component and the traction mechanism of the present invention;

[0022] Figure 4 A cross-sectional view of a portion of an impact-resistant component of the present invention;

[0023] Figure 5 for Figure 2 A magnified image of area A;

[0024] Figure 6 It is a schematic diagram of the structure of the cleaning component part of the present invention;

[0025] Figure 7 It is a cross-sectional view of the flow guiding mechanism part of the present invention;

[0026] In the figure: 1. vertical drainage pipe; 2. horizontal drainage pipe; 3. support bracket; 4. impact-resistant assembly; 5. traction mechanism; 6. sewage pipe; 7. sealing plug; 8. cleaning assembly; 9. diversion mechanism; 10. pressure-bearing sleeve; 11. socket; 12. plug-in sleeve; 13. inner sewage sleeve; 14. support ring; 15. bottom rotating shaft; 16. traction plate; 17. top rotating shaft; 18. lifting plate; 19. fixed plate; 2 0. Anchor rod; 21. Pressure plate; 22. Filter interlayer; 23. Screen; 24. Support plate; 25. Support groove; 26. Drain hole; 27. Outer drain sleeve; 28. Conical column; 29. ​​Spiral blade; 30. Support shaft; 31. Lower hanging rod; 32. Scraper; 33. Docking bearing; 34. Guide sleeve; 35. Inner arc plate; 36. Through hole; 37. Support rod; 38. Inner convex plate; 39. Spring rod; 40. Outer arc plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7The present invention provides the following technical solutions: a water conservancy project anti-leakage drainage pipeline, comprising a drainage pipeline body, the drainage pipeline body comprising a vertical drainage pipeline 1, a horizontal drainage pipeline 2, an impact-resistant component 4 and a traction mechanism 5, the impact-resistant component 4 is sleeved below the vertical drainage pipeline 1, the surface of the horizontal drainage pipeline 2 is sleeved with a support bracket 3, the bottom of the impact-resistant component 4 is integrally formed with a plug-in sleeve 12, one end of the horizontal drainage pipeline 2 is provided with a right-angle bending structure, and the plug-in sleeve 12 is embedded in one end of the horizontal drainage pipeline 2, a support ring 14 is installed at the bottom of the traction mechanism 5, the support ring 14 is sleeved on the surface of the plug-in sleeve 12, a cleaning component 8 is installed inside the impact-resistant component 4, and the bottom of the cleaning component 8 is embedded in the inside of the plug-in sleeve 12, one end of the horizontal drainage pipeline 2 is integrally formed with a sewage pipeline 6, and the end of the sewage pipeline 6 is filled with a sealing plug 7, and a flow guide mechanism 9 is installed inside the vertical drainage pipeline 1, and the central axis of the flow guide mechanism 9 coincides with the central axis of the cleaning component 8. The anti-leakage drainage pipe of the water conservancy project is buried underground and is used to divert the water flowing from the top to the bottom in a horizontal direction.

[0029] When the present invention is installed, the horizontal drainage pipe 2 is buried under the ground through the support bracket 3 at the bottom and kept in a horizontal state, and then the impact-resistant component 4 is sleeved on one end of the horizontal drainage pipe 2, and the impact-resistant component 4 is fixed by means of the traction mechanism 5, and the traction component part is fixed on the inner wall of the channel under the ground or on the ground, and finally the bottom of the vertical drainage pipe 1 is inserted into the top of the impact-resistant component 4, and the top of the vertical drainage pipe 1 is connected to the external water pipe. When used later, water flows from the top of the vertical drainage pipe 1 to the bottom, and the downward flow of water generates The impact force acts directly on the inside of the impact-resistant component 4, achieving a buffering effect on this part of the water flow, eliminating the vertical downward impact force, and converting it to flow horizontally toward the middle, and then flowing into the horizontal drainage pipe 2 at the bottom at a lower position. In this process, the cleaning component 8 is also used to clean this part of the water flow. At the same time, the impact effect of the above-mentioned water flow is also used to drive the cleaning component 8 to rotate, and the filtered impurities and sludge are concentrated and then directly discharged. The top guide mechanism 9 can also be adaptively adjusted according to the current water flow rate to assist the cleaning component 8 to always maintain a rotating and cleaning state.

[0030] In this embodiment, the impact-resistant assembly 4 includes a pressure-bearing sleeve 10 and a screen 23. The bottom of the pressure-bearing sleeve 10 is integrally formed with a pressure plate 21. A filter interlayer 22 is provided on the inner side of the pressure plate 21. A screen 23 is welded to the inner side of the filter interlayer 22. A support plate 24 is welded to the top of the screen 23. A support groove 25 is provided in the middle of the support plate 24. A drainage hole 26 is provided at the bottom of the plug-in sleeve 12. An inner drainage sleeve 13 is welded to the bottom of the drainage hole 26. An outer drainage sleeve 27 is integrally formed on the inner wall of one end of the horizontal drainage pipe 2. The inner drainage sleeve 13 is embedded in the outer drainage sleeve 27. The top of the pressure-bearing sleeve 10 is provided with a socket 11, the bottom of the vertical drainage pipe 1 is embedded in the socket 11, the inner wall of the socket 11 and the surface of the plug-in sleeve 12 are both provided with a sealing layer, and the interior of the outer sewage sleeve 27 is connected to the interior of the sewage pipe 6. The impact force of the falling water flow from the top of the vertical drainage pipe 1 is reduced by the impact-resistant component 4, thereby improving the stability of the horizontal drainage pipe 2 and extending its service life. When used for a long time, one end of the horizontal drainage pipe 2 will not tilt downward due to the high-pressure impact of the water flow, thereby reducing the probability of leakage.

[0031] Specifically, after the water flows downward from the top vertical drainage pipe 1, it passes through the socket 11 and enters the interior of the pressure sleeve 10, and after hitting the cleaning component 8, the cleaning component 8 is used to push the middle water flow toward the side, and finally the pressure plate 21 below is used to pressure-treat this part of the water flow, so that after hitting the pressure plate 21, the water flow can only flow toward the middle, and finally enter the interior of the filter interlayer 22, and only after passing through the screen 23 can it continue to flow downward into the horizontal drainage pipe 2 at the bottom. During the whole process, the impact force will never be applied to the horizontal drainage pipe 2 below.

[0032] In this embodiment, the traction mechanism 5 includes a support ring 14, a lifting plate 18 and a fixed plate 19. The support ring 14 is against the bottom of the pressure plate 21. The surface of the support ring 14 is welded with a bottom rotating shaft 15. The surface of the bottom rotating shaft 15 is sleeved with a traction plate 16. The bottom of the lifting plate 18 is inserted with a top rotating shaft 17. The top end of the traction plate 16 is sleeved on the surface of the top rotating shaft 17. One side of the fixed plate 19 is inserted with an anchor rod 20. The surfaces of the lifting plate 18 and the fixed plate 19 are both provided with threaded holes, and the lifting plate 18 is installed and connected with the surface of the fixed plate 19 by bolts. The fixed plate 19 and the lifting plate 18 are symmetrically installed on both sides of the impact-resistant component 4. Specifically, when the anti-impact component 4 is installed, the support ring 14 will be sleeved on the outside of the plug-in sleeve 12 and support the outer bottom of the pressure plate 21. Therefore, after the fixed plates 19 and the lifting plates 18 on both sides are installed on the inner wall of the channel or the ground, the support ring 14 can be pulled by the traction plate 16 and the rotating shafts at both ends of the traction plate 16, and the support ring 14 can be used to support the pressure plate 21. Therefore, after the subsequent water flow impacts the pressure plate 21, the entire traction mechanism 5 can be used to offset this part of the impact force. Even if the traction mechanism 5 tends to move downward due to the continuous impact during long-term use, it only needs to change the position of the threaded hole on the lifting plate 18 for installation on the fixed plate 19 to pull the anti-impact component 4 upward and reset it.

[0033] In this embodiment, the cleaning component 8 includes a conical column 28 and a scraper 32. The surface of the conical column 28 is integrally formed with a spiral blade 29. The bottom of the conical column 28 is integrally formed with a support shaft 30. The bottom end of the support shaft 30 is sleeved with a docking bearing 33. The docking bearing 33 is embedded in the support groove 25. The bottom of the conical column 28 is also welded with a lower hanging rod 31. The bottom of the lower hanging rod 31 is integrally formed with a scraper 32. The scraper 32 is embedded in the filter interlayer 22, and the edge of the scraper 32 is in contact with the inner wall of the filter interlayer 22. With the help of the internal cleaning component 8, when the water flowing in from the top is diverted toward the side, the entire conical column 28 can be driven to rotate in the opposite direction by the impact of the water flow, so as to automatically discharge the sludge blocked by the anti-impact component 4 in a centralized manner in cooperation with the scraper 32 at the bottom, thereby realizing the functions of self-cleaning and automatic discharge.

[0034] Specifically, when the water flow at the top flows downward, it will directly impact the conical column 28 at the bottom. With the help of the spiral blades 29 on the surface of the conical column 28, the entire conical column 28 can be rotated by the impact of the vertical water flow. The bottom of the conical column 28 rotates with the support shaft 30 through the docking bearing 33, thereby driving the bottom hanging rod 31 and the scraper 32 to rotate. At this time, the scraper 32 inside the filter interlayer 22 can be rotated to achieve the purpose of collecting and processing the silt impurities adhered to the inner wall of the filter interlayer 22. The bottom of the filter interlayer 22 can directly push the scraped and collected silt from the inside of the drain hole 26 toward the bottom through the drain hole 26 opened at the bottom, thereby achieving the effect of exporting the silt part. The sealing plug 7 at the end is opened regularly to discharge the concentrated silt impurities, and the entire cleaning component 8 does not require additional power equipment.

[0035] In this embodiment, the flow guide mechanism 9 includes a flow guide sleeve 34, an inner arc plate 35 and an outer arc plate 40. A support rod 37 is welded on the inner wall of the vertical drainage pipe 1. The end of the support rod 37 is welded and fixed to the surface of the flow guide sleeve 34. The inner arc plate 35 is integrally formed on the top of the flow guide sleeve 34, and a plurality of through holes 36 are opened on the surface of the flow guide sleeve 34. An inner convex plate 38 is also welded on the inner wall of the vertical drainage pipe 1. A spring rod 39 is inserted on the surface of the inner convex plate 38. An outer arc plate 40 is welded on the top of the spring rod 39. The inner circle of the outer arc plate 40 is aligned with the edge of the inner arc plate 35. A flow guide mechanism 9 is installed inside the vertical drainage pipe 1. With the help of the flow guide mechanism 9, the water flow in the low flow state can be centrally guided, and a larger flow guide area can be opened for the water flow in the high flow state, so as to achieve the purpose of driving the cleaning component 8 at the bottom to rotate in both low and high flow states to smoothly complete the cleaning process. Specifically, when the flow rate inside the vertical drainage pipe 1 is small, it cannot press the outer arc plate 40 downward after impacting the outer arc plate 40, and can flow into the interior of the guide sleeve 34 along the outer arc plate 40 and the inner arc plate 35, and finally ensure that it impacts the top area of ​​the conical column 28 from the center position. When the flow rate is too large, the outer arc plate 40 can be pressed downward by a greater impact force, and the spring rod 39 is compressed. At this time, both the inside and the outside of the guide sleeve 34 can be used as channels for conveying water flow, reducing the blocking effect on the flow of water. At this time, the water flow impact will also ensure that the conical column 28 at the bottom can still rotate smoothly because it is already in a large water pressure state.

[0036] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water conservancy project anti-leakage drainage pipe, comprising a drainage pipe body, characterized in that: The drainage pipe body comprises a vertical drainage pipe (1), a horizontal drainage pipe (2), an impact-resistant component (4) and a traction mechanism (5); the impact-resistant component (4) is sleeved below the vertical drainage pipe (1); the surface of the horizontal drainage pipe (2) is sleeved with a support bracket (3); the bottom of the impact-resistant component (4) is integrally formed with a plug-in sleeve (12); one end of the horizontal drainage pipe (2) is provided with a right-angle bending structure, and the plug-in sleeve (12) is embedded in one end of the horizontal drainage pipe (2); a support ring (14) is installed at the bottom of the traction mechanism (5); the support ring (14) is sleeved on the surface of the plug-in sleeve (12); a cleaning component (8) is installed inside the impact-resistant component (4); the ... The bottom of the component (8) is embedded in the interior of the plug-in sleeve (12); one end of the horizontal drainage pipe (2) is integrally formed with a sewage pipe (6); the end of the sewage pipe (6) is filled with a sealing plug (7); a flow guide mechanism (9) is installed inside the vertical drainage pipe (1), and the central axis of the flow guide mechanism (9) coincides with the central axis of the cleaning component (8); the impact-resistant component (4) comprises a pressure-bearing sleeve (10) and a screen (23); the bottom of the pressure-bearing sleeve (10) is integrally formed with a pressure plate (21); a filter interlayer (22) is provided on the inner side of the pressure plate (21); a screen (23) is welded on the inner side of the filter interlayer (22); and a support plate (24) is welded on the top of the screen (23). A support groove (25) is provided in the middle of the support plate (24), the traction mechanism (5) comprises a support ring (14), a lifting plate (18) and a fixed plate (19), the support plate (24) is pressed against the bottom of the pressure plate (21), a bottom rotating shaft (15) is welded to the surface of the support plate (24), a traction plate (16) is sleeved on the surface of the bottom rotating shaft (15), a top rotating shaft (17) is inserted at the bottom of the lifting plate (18), the top end of the traction plate (16) is sleeved on the surface of the top rotating shaft (17), an anchor rod (20) is inserted at one side of the fixed plate (19), threaded holes are provided on the surfaces of the lifting plate (18) and the fixed plate (19), and the lifting plate (18) is connected to the fixed plate by bolts. The fixing plate (19) and the lifting plate (18) are symmetrically mounted on both sides of the impact-resistant component (4); the cleaning component (8) comprises a conical column (28) and a scraper (32); the surface of the conical column (28) is integrally formed with a spiral blade (29); the bottom of the conical column (28) is integrally formed with a support shaft (30); the bottom end of the support shaft (30) is sleeved with a docking bearing (33); the docking bearing (33) is embedded in the interior of the support groove (25); the bottom of the conical column (28) is also welded with a lower hanging rod (31); the bottom of the lower hanging rod (31) is integrally formed with a scraper (32); the scraper (32) is embedded in the interior of the filter interlayer (22);The edge of the scraper (32) is in contact with the inner wall of the filter interlayer (22); the flow guide mechanism (9) comprises a flow guide sleeve (34), an inner arc plate (35) and an outer arc plate (40); a support rod (37) is welded to the inner wall of the vertical drainage pipe (1); the end of the support rod (37) is welded and fixed to the surface of the flow guide sleeve (34); the inner arc plate (35) is integrally formed on the top of the flow guide sleeve (34); and a plurality of through holes ( 36), an inner convex plate (38) is welded to the inner wall of the vertical drainage pipe (1), a spring rod (39) is inserted into the surface of the inner convex plate (38), an outer arc plate (40) is welded to the top of the spring rod (39), and the inner circle of the outer arc plate (40) is aligned with the edge of the inner arc plate (35); when the anti-impact component (4) is installed, the support ring (14) is sleeved on the outside of the plug-in sleeve (12) and supports the outer bottom of the pressure plate (21), so that After the fixed plates (19) and the lifting plates (18) on both sides are installed on the inner wall of the channel or on the ground, the supporting ring (14) can be pulled by the traction plate (16) and the rotating shafts at both ends of the traction plate (16), and the supporting ring (14) can be used to support the pressure plate (21). Therefore, after the subsequent water flow impacts the pressure plate (21), the impact force can be offset by the entire traction mechanism (5); when the flow rate inside the vertical drainage pipe (1) is small, the impact on the outer arc plate (40) is placed on the outer arc plate (40) and cannot be pressed downward, so that the water can flow into the interior of the guide sleeve (34) along the outer arc plate (40) and the inner arc plate (35), and finally ensure that it impacts the top area of ​​the conical column (28) from the center. When the flow rate is too large, the outer arc plate (40) can be pressed downward by a greater impact force, and the spring rod (39) is compressed. At this time, the inside and outside of the guide sleeve (34) can be used as channels for conveying water flow, reducing the blocking effect on the flow of water.

2. The anti-leakage drainage pipeline for water conservancy projects according to claim 1, characterized in that: A drainage hole (26) is provided at the bottom of the plug-in sleeve (12), an inner drainage sleeve (13) is welded to the bottom of the drainage hole (26), an outer drainage sleeve (27) is integrally formed on the inner wall of one end of the horizontal drainage pipe (2), and the inner drainage sleeve (13) is embedded in the outer drainage sleeve (27).

3. The anti-leakage drainage pipeline for water conservancy projects according to claim 2 is characterized by: The top of the pressure-bearing sleeve (10) is provided with a socket (11), the bottom of the vertical drainage pipe (1) is embedded in the interior of the socket (11), the inner wall of the socket (11) and the surface of the plug-in sleeve (12) are both provided with a sealing layer, and the interior of the outer sewage sleeve (27) is connected to the interior of the sewage pipe (6).

Images