Municipal engineering intelligent drain pipe and drainage system

Abstract

The application relates to a municipal engineering intelligent drain pipe and a drain system, which comprises a drain unit and a filter unit; the drain unit comprises a pipe body capable of being embedded into an existing drain pipeline and a cover capable of being installed into an existing drain port, the pipe body comprises an A-section pipe, a B-section pipe and a C-section pipe which are arranged from top to bottom and are sequentially detachably connected; the filter unit comprises filter plates A and B which are matched with the pipe body in shape; a rotating shaft A is arranged at the diameter of the pipe body section in the A-section pipe, the rotating shaft A penetrates and fixes the filter plate A; a rotating shaft B is arranged at the diameter of the pipe body section in the B-section pipe, the rotating shaft A and the rotating shaft B are parallel to each other; a water wheel is fixed in the middle position of the rotating shaft B, and the filter plate B is arranged in the C-section pipe. The municipal engineering intelligent drain pipe can automatically adjust the size of the drain port according to needs, and has high adaptability.

Description

Technical Field

[0001] This invention relates to the field of drainage technology, specifically to an intelligent drainage pipe and drainage system for municipal engineering. Background Technology

[0002] Municipal drainage systems are crucial for urban development and residents' lives, involving public safety, environmental protection, and resource utilization. Especially during heavy rains, if underground drainage systems are inadequate, rainwater can easily accumulate on roads, affecting vehicles and pedestrians, leading to traffic accidents, and in severe cases, urban flooding. Existing drainage systems typically lack adjustment capabilities, failing to automatically adjust the size of the drain outlet according to water flow, and failing to provide timely warnings if the water flow exceeds a critical value. Furthermore, existing drainage systems often only have simple filter screens, but the drainage process often involves complex components, including large amounts of garbage and impurities. Especially during heavy rains, road debris enters the drainage pipes, quickly clogging the filter screens. Manual cleaning is both untimely and labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and to propose an intelligent drainage pipe and drainage system for municipal engineering that can automatically adjust the size of the drainage outlet as needed.

[0004] The present invention provides an intelligent drainage pipe for municipal engineering, comprising a drainage unit and a filtration unit;

[0005] The drainage unit includes a pipe body that can be embedded in an existing drainage pipe and a cover that can be installed on an existing drain outlet. The pipe body includes a section A pipe, a section B pipe, and a section C pipe that are arranged from top to bottom and can be detachably connected in sequence. The filter unit includes a filter plate A and a filter plate B, both of which are shaped to fit the pipe body.

[0006] A rotating shaft A is located at the diameter of the pipe section A, and the rotating shaft A passes through and fixes the filter plate A. Similarly, a rotating shaft B is located at the diameter of the pipe section B, and rotating shafts A and B are parallel to each other. A water wheel is fixed through the middle of rotating shaft B. Two gears A and two gears B are also fixed through the rotating shaft B on both sides near the inner wall of the pipe. Gears A have racks C and B meshing on both sides, and gear B has rack A meshing on one side. A filter plate B is located inside the pipe section C.

[0007] The cover includes an outer ring that engages with an existing drain outlet, an inner ring that can automatically rise and fall, and a flexible connecting part between the outer and inner rings. The inner ring is a double-layer structure composed of an outer grate and an inner grate. The ends of the two racks A away from the gear A pass through the filter plate A and the flexible connecting part in sequence, and are fixedly connected to the bottom of the outer grate. The ends of the two racks B away from the gear A are fixedly connected to the filter plate B. The ends of the two racks C away from the gear B pass through the filter plate A and are fixedly connected to the bottom of the inner grate. The filter plate A is fixedly connected to the flexible connecting part; the filter plate A is provided with a through hole A that allows the rack C to pass through, the opening area of ​​the through hole A is larger than the cross-sectional area of ​​the rack C, and the opening area of ​​the through hole A is sufficient to allow the filter plate A to rotate around the rotating shaft A; both the filter plate A and the flexible connecting part are provided with through holes B that allow the rack A to pass through, the opening area of ​​the through hole B is larger than the cross-sectional area of ​​the rack A, and the opening area of ​​the through hole B is also sufficient to allow the filter plate A to rotate around the rotating shaft A; the maximum rotation angle of the filter plate A is 60°;

[0008] The area of ​​the outer ring is S, and the area of ​​the inner ring is s, satisfying S:s = (1~2):1; the rack B and rack A are located on the same side of the gear A and gear B, and the radii of the gear A and gear B are r and R respectively, satisfying R:r = (1.2~3):1.

[0009] Furthermore, the flexible connection part of the intelligent drainage pipe for municipal engineering described in this invention is made of rubber material. The flexible connection part includes a drainage surface and an L-shaped connection part connected to the drainage surface. The other end of the drainage surface is connected to the outer ring, and the other end of the L-shaped connection part is connected and fixed to the bottom of the inner grate.

[0010] The outer grate consists of a top cover and an outer sidewall, the inner grate consists of an inner sidewall, the outer sidewall is located between the L-shaped connecting part and the inner sidewall, and water inlet holes are provided on the drainage surface, the outer sidewall and the inner sidewall.

[0011] Furthermore, the water impeller of the intelligent drainage pipe for municipal engineering of the present invention includes at least four blades, and the front and back surfaces of the blades away from the rotating shaft B are provided with grooves.

[0012] Furthermore, the filter plate A of the intelligent drainage pipe for municipal engineering described in this invention has filter holes A, and the filter holes A are connected by support bars. The filter plate A is divided into one part and two parts by the rotating shaft A. The thickness of the first part is less than the thickness of the second part. A water channel is also formed on the upper surface of the support bar.

[0013] Furthermore, the filter plate B of the intelligent drainage pipe for municipal engineering described in this invention is composed of part A and part B, and each of the sides of part A and part B that are close to each other is provided with a movable connecting rod. The other end of the movable connecting rod is movably connected to the end of the rack B, and the filter plate B is provided with filter holes B.

[0014] Furthermore, the intelligent drainage pipe for municipal engineering of the present invention also includes a filter cleaning unit, which is connected to the side wall of the A section pipe located above the filter plate A.

[0015] The filter cleaning unit includes a storage box and a flexible screw located inside the storage box. The flexible screw is connected and fixed to the rotating shaft B through a bevel gear mechanism.

[0016] Furthermore, the cross-sectional area of ​​the intelligent drainage pipe for municipal engineering described in this invention is smaller than that of existing drainage pipes. An overflow port is provided on the inner wall of the A section pipe, and the height of the overflow port is located at 1 / 2 to 2 / 3 of the height difference between the outer ring and the rotating shaft A. The diameter of the A section pipe is smaller than that of the B section pipe, and the cross-section of the detachable connection between the A section pipe and the B section pipe is two tangent circles. The overflow port is located on the side wall of the opposite side of the detachable connection.

[0017] Furthermore, the intelligent drainage pipe for municipal engineering described in this invention has a flow monitoring device electrically connected to the alarm located on the inner wall of the A section pipe below the overflow outlet.

[0018] Furthermore, the storage box of the intelligent drainage pipe for municipal engineering described in this invention is placed in an underground pit, and the storage box is equipped with a handle.

[0019] The present invention also provides an intelligent drainage system for municipal engineering, the drainage system including the intelligent drainage pipe for municipal engineering as described in any of the above claims, and the drainage system further including a control system electrically connected to the alarm and the flow monitoring device.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] The intelligent drainage pipe for municipal engineering described in this invention can firstly replace the existing drainage outlet device entirely. The drainage pipe described in this application can be easily manufactured according to the specific shape and size of the existing drainage well cover. Then, the drainage pipe described in this application is installed as a whole at the original sewer outlet without altering the original underground drainage pipeline, making construction convenient. If necessary, only a filter storage box needs to be newly installed near the drainage outlet.

[0022] Secondly, the intelligent drainage pipe for municipal engineering described in this invention can automatically change the number of inlet holes according to the water flow rate. Specifically, the water wheel driven by the water flow inside the pipe, in conjunction with the lifting and lowering of the gear and rack mechanism, controls the inner ring of the double-layer structure of the cover, causing the outer grate to rise while the inner grate falls, thereby opening the inlet holes between the inner and outer grates and increasing the drainage capacity of the drainage unit.

[0023] In addition, the drainage volume can be further increased through the overflow outlet. Conversely, when the water flow of the drainage unit decreases and does not overflow the overflow outlet, the water flow can pass through the water channel on the filter plate A, causing the water flow to concentrate on the two parts of the filter plate A, thereby causing the water wheel to reverse, causing the inner and outer grates to move towards each other, closing the water inlet between the inner and outer grates, and the cover automatically returns to its initial state.

[0024] The intelligent drainage pipe for municipal engineering described in this invention is equipped with an alarm and a flow detection device that can intelligently mark locations, thereby effectively predicting and preventing urban flooding and protecting the lives and property of residents. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of the intelligent drainage pipe for municipal engineering described in this invention;

[0026] Figure 2 This is a cross-sectional schematic diagram of the intelligent drainage pipe for municipal engineering described in this invention;

[0027] Figure 3 This is a partial schematic diagram of gear B 108 according to the present invention.

[0028] Figure 4 This is a top view of the rotating shaft B 105 described in this invention;

[0029] Figure 5 This is a top view of the filter plate A 310 described in this application;

[0030] Figure 6 This is a schematic diagram of the structure of the filter plate B 320 described in this invention;

[0031] Figure 7 This is a schematic diagram of the structure of the filter cleaning unit 400 of the present invention;

[0032] Figure 8 This is a schematic diagram of the initial state of the intelligent drainage pipe for municipal engineering described in this invention;

[0033] Figure 9 This is a schematic diagram of the internal structure of the filter cleaning unit 400 described in this invention;

[0034] Among them: 100, tube body; 200, cover body; 300, filter unit; 400, filter cleaning unit;

[0035] 101. Section A pipe, 102. Section B pipe, 103. Section C pipe, 104. Shaft A, 105. Shaft B, 106. Water turbine, 107. Gear A, 108. Gear B, 109. Rack A, 110. Rack B, 111. Rack C, 112. Overflow port, 1061. Blade, 1062. Groove;

[0036] 201. Outer ring; 202. Flexible connection part; 203. Inner ring; 204. Outer grate; 205. Inner grate; 206. Water inlet hole; 2021. Drainage surface; 2022. L-shaped connection part; 2041. Top cover; 2042. Outer side wall; 2051. Inner side wall;

[0037] 310. Filter plate A; 320. Filter plate B; 3101. Filter hole A; 3102. Part 1; 3103. Part 2; 3104. Water channel; 3105. Support bar; 3201. Part A; 3202. Part B; 3203. Movable connecting rod; 3204. Filter hole B.

[0038] 401. Storage box; 402. Flexible screw. Detailed Implementation Specific implementation method one:

[0040] A smart drainage pipe for municipal engineering includes a drainage unit and a filtration unit;

[0041] The drainage unit includes a pipe body that can be embedded in an existing drainage pipe and a cover that can be installed on an existing drain outlet. The pipe body includes a section A pipe, a section B pipe, and a section C pipe that are arranged from top to bottom and can be detachably connected in sequence. The filter unit includes a filter plate A and a filter plate B, both of which are shaped to fit the pipe body.

[0042] A rotating shaft A is located at the diameter of the pipe section A, and the rotating shaft A passes through and fixes the filter plate A. Similarly, a rotating shaft B is located at the diameter of the pipe section B, and rotating shafts A and B are parallel to each other. A water wheel is fixed through the middle of rotating shaft B. Two gears A and two gears B are also fixed through the rotating shaft B on both sides near the inner wall of the pipe. Gears A have racks C and B meshing on both sides, and gear B has rack A meshing on one side. A filter plate B is located inside the pipe section C.

[0043] The cover includes an outer ring that snaps into an existing drain outlet, an inner ring that can automatically rise and fall, and a flexible connecting part between the outer ring and the inner ring. The inner ring is a double-layer mechanism composed of an outer grate and an inner grate. The ends of the two racks A away from the gear A pass through the filter plate A and the flexible connecting part in sequence, and are fixedly connected to the bottom of the outer grate. The ends of the two racks B away from the gear A are fixedly connected to the filter plate B. The ends of the two racks C away from the gear B pass through the filter plate A and are fixedly connected to the bottom of the inner grate.

[0044] The area of ​​the outer ring is S, and the area of ​​the inner ring is s, satisfying S:s = (1~2):1; the rack B and rack A are located on the same side of the gear A and gear B, and the radii of the gear A and gear B are r and R respectively, satisfying R:r = (1.2~3):1. Specific Implementation Method Two:

[0046] A municipal engineering intelligent drainage system based on the above embodiment 1 includes the municipal engineering intelligent drainage pipe as described in embodiment 1. The drainage system also includes a control system electrically connected to the alarm and the flow monitoring device. Example 1:

[0047] like Figures 1-9 As shown, a smart drainage pipe for municipal engineering includes a drainage unit and a filtration unit 300.

[0048] The drainage unit includes a pipe body 100 that can be embedded in an existing drainage pipe and a cover 200 that can be installed on an existing drain outlet. The pipe body 100 includes a section A pipe 101, a section B pipe 102, and a section C pipe 103 that are arranged from top to bottom and detachably connected in sequence. The filter unit 300 includes a filter plate A310 and a filter plate B320 whose shapes are matched with the pipe body 100.

[0049] A rotating shaft A104 is provided inside section A of pipe 101 at the diameter of the cross-section of pipe body 100, and the rotating shaft A104 passes through and fixes the filter plate A310. Similarly, a rotating shaft B105 is provided inside section B of pipe 102 at the diameter of the cross-section of pipe body 100, and the rotating shafts A104 and B105 are parallel to each other. A water wheel 106 is fixed through the middle of the rotating shaft B105. Two gears A107 and two gears B108 are also fixed through the rotating shaft B105 on both sides near the inner wall of pipe body 100, respectively. A rack C111 and a rack B110 are meshed on both sides of the gear A107, and a rack A109 is meshed on one side of the gear B108. A filter plate B320 is provided inside section C of pipe 103.

[0050] The cover 200 includes an outer ring 201 that engages with an existing drain outlet, an inner ring 203 that can automatically rise and fall, and a flexible connecting part 202 disposed between the outer ring 201 and the inner ring 203. The inner ring 203 is a double-layer mechanism composed of an outer grate 204 and an inner grate 205. The ends of the two racks A109 away from the gear A107 pass through the filter plate A310 and the flexible connecting part 202 in sequence, and are connected and fixed to the bottom of the outer grate 204. The ends of the two racks B110 away from the gear A107 are connected and fixed to the filter plate B320. The ends of the two racks C111 away from the gear B108 pass through the filter plate A310. It is also connected and fixed to the bottom of the inner grate 205; the filter plate A310 is provided with a through hole A that allows the rack C111 to pass through, the opening area of ​​the through hole A is larger than the cross-sectional area of ​​the rack C111, and the opening area of ​​the through hole A allows the filter plate A310 to rotate around the rotating shaft A104; both the filter plate A310 and the flexible connection part 202 are provided with through holes B that allow the rack A109 to pass through, the opening area of ​​the through hole B is larger than the cross-sectional area of ​​the rack A109, and the opening area of ​​the through hole B also allows the filter plate A310 to rotate around the rotating shaft A104; the maximum rotation angle of the filter plate A310 is 60°.

[0051] In this embodiment 1, the area of ​​the outer ring 201 is S, the area of ​​the inner ring 203 is s, and S:s = 2:1; the rack B110 and rack A109 are located on the same side of the gear A107 and gear B108, and the radii of the gear A107 and gear B108 are r and R respectively, and R:r = 1.5:1.

[0052] In this embodiment 1, the flexible connecting part 202 is made of rubber material. The flexible connecting part 202 includes a drainage surface 2021 and an L-shaped connecting part 2022 connected to the drainage surface 2021. The other end of the drainage surface 2021 is connected to the outer ring 201, and the other end of the L-shaped connecting part 2022 is connected and fixed to the bottom of the inner grate 205.

[0053] The outer grate 204 is composed of a top cover 2041 and an outer sidewall 2042, and the inner grate 205 is composed of an inner sidewall 2051. The outer sidewall 2042 is located between the L-shaped connecting part 2022 and the inner sidewall 2051. Water inlet holes 206 are provided on the drainage surface 2021, the outer sidewall 2042 and the inner sidewall 2051.

[0054] In this embodiment 1, the water turbine 106 includes at least four blades 1061, and the front and back surfaces of the blades 1061 away from the rotating shaft B105 are provided with grooves 1062.

[0055] In this embodiment 1, the filter plate A310 is provided with filter holes A3101, and the filter holes A3101 are connected by a support bar 3105. The filter plate A310 is divided into a part 3102 and a second part 3103 by the rotating shaft A104. The thickness of the part 3102 is less than the thickness of the second part 3103. The upper surface of the support bar 3105 is also provided with a water channel 3104.

[0056] In this embodiment 1, the filter plate B320 is composed of part A 3201 and part B 3202, and each of the sides of part A 3201 and part B 3202 that are close to each other is provided with a movable connecting rod 3203. The other end of the movable connecting rod 3203 is movably connected to the end of the rack B110. The filter plate B320 is provided with a filter hole B3204.

[0057] In this embodiment 1, the municipal engineering intelligent drainage pipe also includes a filter cleaning unit 400, which is connected to the side wall of the A section pipe 101 above the filter plate A310.

[0058] The filter cleaning unit 400 includes a storage tank 401 and a flexible screw 402 located within the storage tank. The flexible screw 402 is connected to the rotating shaft B105 via a bevel gear mechanism. Figure 9 As shown, in this embodiment 1, the bevel gear mechanism includes a bevel gear A fixedly connected to the rotating shaft B105, a bevel gear B meshing with the bevel gear A, and bevel gears C and D meshing with each other. The bevel gears B and C are coaxially fixedly connected via the rotating shaft C, and the bevel gear D is fixedly connected to the flexible screw 402. Therefore, during actual operation, due to its different thickness, the filter plate A310 will tilt under its own weight, and the height of the two parts 3103 will be lower than the height of the one part 3102. As a result, the filtered material on the filter plate A310 will gradually slide into the storage box 401. When the rotating shaft A105 starts to rotate, the flexible screw 402 will be driven by the bevel gear mechanism to start rotating, automatically pushing the filtered material near the filter plate A310 in the storage box 401 to the depth of the storage box 401. When the filter material in the storage box 401 has accumulated to a large amount, the storage box 401 is manually emptied and the filter material is collected again.

[0059] In this embodiment 1, the cross-sectional area of ​​the pipe body 100 is smaller than that of the existing drainage pipe. An overflow port 112 is provided on the inner side wall of the A section pipe 101. The height of the overflow port 112 is located at 1 / 2 to 2 / 3 of the height difference between the outer ring 201 and the rotating shaft A104. The diameter of the A section pipe 101 is smaller than that of the B section pipe 102. The cross-section of the detachable connection between the A section pipe 101 and the B section pipe 102 is two tangent circles. The overflow port 112 is located on the side wall of the opposite side of the detachable connection.

[0060] In this embodiment 1, a flow monitoring device electrically connected to the alarm is provided on the inner wall of the A-section pipe 101 below the overflow port 112.

[0061] In this embodiment 1, the storage box 401 is placed in an underground pit, and the storage box 401 is provided with a handle.

[0062] The specific working principle is as follows: In actual use, the normal operating state of the intelligent drainage pipe for municipal engineering described in this invention is as follows: Figure 8 As shown, water flows into the drainage unit only through the inlet holes 206 on the drainage surface 2021 and the outer grate 204. Moreover, due to the different thicknesses of the water channel 3104 and its filter plate A 310, the water flow on the filter plate A 310 tends to concentrate towards the two parts 3103, so the water wheel 106 will not rotate. After flowing through section B pipe 102 and section C pipe 103, the water flows into the municipal drainage system.

[0063] As the water flow gradually increases, and water accumulates on filter plate A310, overflowing the overflow port 112, the water flows directly from the overflow port 112 into section B pipe 102. The water flow impacts the blades 1061 of the water wheel 106, and the groove 1062 strengthens the force on the blades 1061, causing the water wheel 106 to rotate counterclockwise. This, in turn, drives gears A107 and B108 to rotate. At this time, the drainage unit is in the following state: Figure 2 As shown, the counterclockwise rotation of gear A107 drives rack C111 downward, thereby pulling the inner grate 205 downward. Simultaneously, gear A107 also drives rack B110 upward, which, through the movable connecting rod 3203, pulls filter plate B320, opening sections A 3201 and B 3202 and increasing water flow. At this time, gear B108 also rotates counterclockwise, driving rack A109 upward, which in turn moves the outer grate 204 upward, opening all the water inlets 206 on both the inner and outer grate 205, further increasing water flow. Simultaneously, the rotating shaft B105, via a bevel gear mechanism, drives the flexible screw 402 to transport the filtered material into the storage tank 401.

[0064] As the water flow gradually decreases, no more water flows through the overflow outlet 112, and the water flow tends to concentrate towards the second part 3103. The water wheel 106 begins to rotate clockwise, and gears A107 and B108 also rotate clockwise simultaneously. Racks A109, B110, and C111 all begin to reset, until the drainage unit returns to normal. Figure 8 This is the normal operating condition shown.

[0065] The intelligent drainage pipe for municipal engineering described in this invention, through the above process, can automatically and intelligently adapt to the appropriate state according to the required drainage volume without the aid of any additional energy, making it convenient to use and effective. Example 2:

[0066] A municipal engineering intelligent drainage system based on the above embodiment 1, the drainage system includes the municipal engineering intelligent drainage pipe of embodiment 1, and the drainage system also includes a control system electrically connected to the alarm and the flow monitoring device.

[0067] The above-described specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A smart drainage pipe for municipal engineering, characterized in that, Includes a drainage unit and a filter unit (300); The drainage unit includes a pipe body (100) that can be embedded in an existing drainage pipe and a cover (200) that can be installed on an existing drain outlet. The pipe body (100) includes a section A pipe (101), a section B pipe (102), and a section C pipe (103) that are arranged from top to bottom and can be detachably connected in sequence. The filter unit (300) includes a filter plate A (310) and a filter plate B (320) whose shapes are matched with the pipe body (100). A rotating shaft A (104) is provided inside the A-section pipe (101) at the diameter of the cross-section of the pipe body (100), and the rotating shaft A (104) passes through and fixes the filter plate A (310); a rotating shaft B (105) is also provided inside the B-section pipe (102) at the diameter of the cross-section of the pipe body (100), and the rotating shaft A (104) and the rotating shaft B (105) are parallel to each other; a water wheel (106) is fixed through the middle of the rotating shaft B (105), and two gears A (107) and two gears B (108) are respectively fixed through the two sides of the rotating shaft B (105) near the inner wall of the pipe body (100), and racks C (111) and B (110) are respectively meshed on both sides of the gear A (107), and rack A (109) is meshed on one side of the gear B (108); a filter plate B (320) is provided inside the C-section pipe (103); The cover (200) includes an outer ring (201) that snaps into an existing drain outlet, an inner ring (203) that can automatically rise and fall, and a flexible connecting part (202) disposed between the outer ring (201) and the inner ring (203). The inner ring (203) is a double-layer mechanism composed of an outer grate (204) and an inner grate (205). The ends of the two racks A (109) away from the gear A (107) pass through the filter plate A (310) and the flexible connecting part (202) in sequence, and are connected and fixed to the bottom of the outer grate (204). The ends of the two racks B (110) away from the gear A (107) are connected and fixed to the filter plate B (320). The ends of the two racks C (111) away from the gear B (108) pass through the filter plate A (310). The filter plate A (310) is fixedly connected to the bottom of the inner grate (205); the filter plate A (310) is provided with a through hole A that allows the rack C (111) to pass through, the opening area of ​​the through hole A is larger than the cross-sectional area of ​​the rack C (111), and the opening area of ​​the through hole A allows the filter plate A (310) to rotate around the rotating shaft A (104); both the filter plate A (310) and the flexible connection part (202) are provided with through holes B that allow the rack A (109) to pass through, the opening area of ​​the through hole B is larger than the cross-sectional area of ​​the rack A (109), and the opening area of ​​the through hole B also allows the filter plate A (310) to rotate around the rotating shaft A (104); the maximum rotation angle of the filter plate A (310) is 60°; The area of ​​the outer ring (201) is S, and the area of ​​the inner ring (203) is s, and S:s = (1~2):1; the rack B (110) and rack A (109) are located on the same side of the gear A (107) and gear B (108), and the radii of the gear A (107) and gear B (108) are r and R respectively, and R:r = (1.2~3):

1.

2. The intelligent drainage pipe for municipal engineering according to claim 1, characterized in that, The flexible connecting part (202) is made of rubber material. The flexible connecting part (202) includes a drainage surface (2021) and an L-shaped connecting part (2022) connected to the drainage surface (2021). The other end of the drainage surface (2021) is connected to the outer ring (201), and the other end of the L-shaped connecting part (2022) is connected and fixed to the bottom of the inner grate (205). The outer grate (204) is composed of a top cover (2041) and an outer sidewall (2042). The inner grate (205) is composed of an inner sidewall (2051). The outer sidewall (2042) is located between the L-shaped connecting part (2022) and the inner sidewall (2051). Water inlet holes (206) are provided on the drainage surface (2021), the outer sidewall (2042) and the inner sidewall (2051).

3. The intelligent drainage pipe for municipal engineering according to claim 2, characterized in that, The water turbine (106) includes at least four blades (1061), and the blades (1061) have grooves (1062) on both the front and back sides of the end away from the rotating shaft B (105).

4. The intelligent drainage pipe for municipal engineering according to claim 3, characterized in that, The filter plate A (310) has filter holes A (3101) and a support bar (3105) between the filter holes A (3101). The filter plate A (310) is divided into a part (3102) and a second part (3103) by the rotating shaft A (104). The thickness of the first part (3102) is less than the thickness of the second part (3103). A water channel (3104) is also provided on the upper surface of the support bar (3105).

5. The intelligent drainage pipe for municipal engineering according to claim 4, characterized in that, The filter plate B (320) is composed of part A (3201) and part B (3202), and each of the parts A (3201) and B (3202) is provided with a movable connecting rod (3203) on the side close to each other. The other end of the movable connecting rod (3203) is movably connected to the end of the rack B (110). The filter plate B (320) is provided with a filter hole B (3204).

6. The intelligent drainage pipe for municipal engineering according to claim 3, characterized in that, The municipal engineering intelligent drainage pipe also includes a filter cleaning unit (400), which is connected to the side wall of the A section pipe (101) above the filter plate A (310). The filter cleaning unit (400) includes a storage box (401) and a flexible screw (402) located inside the storage box. The flexible screw (402) is connected and fixed to the rotating shaft B (105) through a bevel gear mechanism.

7. The intelligent drainage pipe for municipal engineering according to claim 6, characterized in that, The cross-sectional area of ​​the pipe body (100) is smaller than that of the existing drainage pipe. An overflow port (112) is provided on the inner wall of the A section pipe (101). The height of the overflow port (112) is located at 1 / 2 to 2 / 3 of the height difference between the outer ring (201) and the rotating shaft A (104). The diameter of the A section pipe (101) is smaller than that of the B section pipe (102). The cross-section of the detachable connection between the A section pipe (101) and the B section pipe (102) is two tangent circles. The overflow port (112) is located on the side wall of the opposite side of the detachable connection.

8. The intelligent drainage pipe for municipal engineering according to claim 7, characterized in that, Below the overflow port (112), on the inner wall of the A-section pipe (101), there is a flow monitoring device that is electrically connected to the alarm.

9. The intelligent drainage pipe for municipal engineering according to claim 7, characterized in that, The storage box (401) is placed in an underground pit, and the storage box (401) is provided with a handle.

10. An intelligent drainage system for municipal engineering, characterized in that, The drainage system includes the intelligent drainage pipe for municipal engineering as described in claim 8, and the drainage system also includes a control system electrically connected to the alarm and the flow monitoring device.

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