Municipal road drainage structure with backflow prevention function

Abstract

The utility model discloses a municipal road drainage structure with an anti-backflow function, and relates to the technical field of municipal drainage engineering. The drainage well comprises a drainage well body, the top of the drainage well body is provided with a well lid, the drainage well body is internally provided with a filter port, the top of the filter port is fixedly connected with a filter screen, and the interior of the filter port is fixedly connected with a supporting rod. When sewage in the drainage well body flows back, the buoyancy of the sewage pushes a buoyancy body to drive a lifting rod to be inserted into a sleeve rod, so that the buoyancy body blocks the bottom of a filtering opening, and a transmission mechanism is matched to drive a cover plate to drive a second drainage opening and a first drainage opening to be arranged in a staggered manner; therefore, sewage in the drainage well body is prevented from flowing out of the drainage well body through the filter port, and foreign matters such as leaves filtered at the top of the filter screen are prevented from flowing out of the drainage well body through the first drainage port and the second drainage port, so that the condition of sewage backflow in the drainage well body is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of municipal drainage engineering, and in particular to a municipal road drainage structure with an anti-backflow function. Background Art

[0002] With the acceleration of urbanization, the municipal road drainage system occupies an increasingly important position in the construction of urban infrastructure. The municipal road drainage includes the pavement drainage part and the roadside drainage part. The pavement drainage part is composed of: base layer, waterproof layer, permeable layer from bottom to top. There is a pavement drainage ditch above the waterproof layer; the roadside drainage part includes the roadside drainage ditch and the drainage wells on both sides of the road. The wells drain the surface water on the road into the detection wells, and then enter the main water supply pipeline through the detection wells to complete the discharge of surface water on the road.

[0003] The manholes and inspection wells in the existing municipal road drainage structure are all vertical wells, and water flows straight up and down inside them, which means that under normal circumstances, road surface water can be easily discharged through the municipal drainage wells.

[0004] However, when the drainage well is blocked or the water flow is large, the accumulated water inside the drainage well cannot be discharged, and the pressure inside the drainage well continues to increase, the sewage will flow back at this time, polluting the surrounding environment and threatening the safety of passers-by. Utility Model Content

[0005] The purpose of this application is to solve the problem that when a drainage well is blocked or the water flow is large, the accumulated water in the drainage well cannot be discharged, and the pressure inside the drainage well continues to increase, the sewage will flow back at this time. This application provides a municipal road drainage structure with anti-backflow function.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A municipal road drainage structure with an anti-backflow function comprises a drainage well body, a well cover is installed on the top of the drainage well body, a filter port is arranged inside the drainage well body, a filter net is fixedly connected to the top of the filter port, a support rod is fixedly connected to the inside of the filter port, a sliding hole is opened at one end of the support rod, a lifting rod is slidably connected to the inside of the sliding hole, a buoyancy body is fixedly connected to the bottom of the lifting rod, a cover plate is rotatably connected to the bottom of the well cover, a plurality of first drainage ports are opened at one end of the well cover, a second drainage port matched with the first drainage port is opened at one end of the cover plate, and a transmission mechanism for driving the cover plate to rotate is arranged at one end of the lifting rod.

[0008] By adopting the above technical scheme, by setting the buoyancy body and the second drain port and the transmission mechanism for use together, when the sewage inside the drainage well body flows back, the buoyancy of the sewage pushes the buoyancy body to drive the lifting rod to insert into the interior of the sleeve rod, so that the buoyancy body forms a blockage on the bottom of the filter port, and cooperates with the transmission mechanism to drive the cover plate to drive the second drain port and the first drain port to be arranged in a staggered manner, so as to reduce the sewage inside the drainage well body to flow back through the filter port and out of the interior of the drainage well body, and at the same time reduce the foreign objects such as leaves filtered on the top of the filter screen to flow out of the interior of the drainage well body through the first drain port and the second drain port, thereby effectively reducing the situation of sewage backflow inside the drainage well body and improving the practicality of the device.

[0009] Furthermore, the transmission mechanism includes a sleeve rod fixedly connected to the bottom of the cover plate, one end of the lifting rod is fixedly connected to a transmission slide rod, one end of the sleeve rod is provided with a transmission slide rail adapted to the transmission slide rod, and one end of the lifting rod is installed with a guide component for guiding the buoyancy body to move along the length direction of the lifting rod.

[0010] By adopting the above technical scheme, by setting the cooperation of the guide component with the transmission slide rod and the transmission slide rail, when the buoyancy of the sewage pushes the buoyancy body to cooperate with the guide component to move upward along the length direction of the guide slide groove, the buoyancy body pushes the lifting rod to drive the transmission slide rod to form a conflict with the inner wall of the transmission slide rail, and pushes the sleeve rod to drive the second drain outlet to rotate, so as to facilitate driving the second drain outlet to rotate, thereby driving the second drain outlet to form an alternating arrangement with the first drain outlet, reducing the foreign matter intercepted by the top of the filter screen to rush out of the interior of the drainage well body through the first drain outlet and the second drain outlet, thereby improving the practicability of the device.

[0011] Furthermore, the guide assembly comprises a guide slot symmetrically arranged at one end of the lifting rod, and a guide sliding block adapted to the guide slot is symmetrically fixedly connected to the interior of the slide hole.

[0012] By adopting the above technical solution, by setting up the coordinated use of the guide groove and the guide slider, when the buoyancy of the sewage pushes the buoyancy body to move upward, the buoyancy body drives the lifting rod to be guided and positioned by the guide groove and the guide slider, so that the buoyancy body will only move along the length direction of the guide groove, thereby improving the efficiency of the lifting rod driving the transmission slide rod to push the cover plate to rotate.

[0013] Furthermore, a scraper is symmetrically fixedly connected to the bottom of the sleeve rod, and the scraper is fitted with the top of the filter screen.

[0014] By adopting the above technical solution, after the sewage backflow inside the drainage well body ends, the buoyancy body drives the lifting rod to cooperate with the transmission mechanism to drive the cover plate to rotate in the opposite direction under the action of gravity. At the same time, the cover plate drives the scraper to rotate, and turns over foreign objects such as leaves that are stuck to the silt and compacted on the top of the filter screen, thereby reducing the possibility of blockage on the top of the filter screen.

[0015] Furthermore, the top of the second drain outlet passes through the manhole cover and is fixedly connected with a handle.

[0016] By adopting the above technical solution, a handle is provided to facilitate the driving of the sleeve rod by rotating the handle on the top of the manhole cover to cooperate with the transmission slide rail to drive the transmission slide rod, the lifting rod and the buoyancy body to move downward along the length direction of the guide slide groove, thereby reducing the jamming between the buoyancy body and the inside of the drainage well body, resulting in blockage inside the drainage well body.

[0017] Furthermore, a protective groove is provided on the top of the manhole cover, and the handle is installed inside the protective groove.

[0018] By adopting the above technical solution, the handle is protected by providing a protective groove, which reduces the impact on pedestrian safety caused by one end of the handle protruding from the top of the manhole cover.

[0019] Furthermore, a reflective block is fixedly connected to one end of the interior of the protective groove.

[0020] By adopting the above technical solution, the reflective blocks are provided to effectively improve the warning effect on pedestrians at night and improve the safety of the device.

[0021] Furthermore, the surfaces of the lifting rod, the transmission sliding rod and the sleeve rod are all coated with an organic silicon waterproof coating.

[0022] By adopting the above technical solution and providing an organic silicon waterproof coating, the corrosion resistance of the device is effectively improved and the service life of the device is extended.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. By setting the buoyancy body, the second drain port and the transmission mechanism for coordinated use, when the sewage inside the drainage well body flows back, the buoyancy of the sewage pushes the buoyancy body to drive the lifting rod to insert into the inside of the sleeve rod, so that the buoyancy body forms a barrier to the bottom of the filter port, and cooperates with the transmission mechanism to drive the cover plate to drive the second drain port and the first drain port to be arranged alternately, so as to reduce the sewage inside the drainage well body to flow back through the filter port and out of the drainage well body, and at the same time reduce the foreign objects such as leaves filtered on the top of the filter screen to flow out of the drainage well body through the first drain port and the second drain port, thereby effectively reducing the situation of sewage backflow inside the drainage well body and improving the practicality of the device.

[0025] 2. By setting up the cooperation of the guide assembly with the transmission slide rod and the transmission slide rail, when the buoyancy of the sewage pushes the buoyancy body to cooperate with the guide assembly to move upward along the length direction of the guide slide groove, the buoyancy body pushes the lifting rod to drive the transmission slide rod to form a conflict with the inner wall of the transmission slide rail, and pushes the sleeve rod to drive the second drain outlet to rotate, so as to facilitate driving the second drain outlet to rotate, thereby driving the second drain outlet to form a staggered arrangement with the first drain outlet, reducing the foreign matter intercepted by the top of the filter screen and rushing out of the interior of the drainage well body through the first drain outlet and the second drain outlet, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a front cross-sectional view of the device body in this application.

[0028] Figure 3 It is an exploded view of the internal structure of the drainage well body in this application.

[0029] Figure 4 It is an exploded view of the internal structure of the sleeve rod in this application.

[0030] Description of reference numerals:

[0031] 1. Drainage well body; 2. Well cover; 3. Filter port; 4. Filter screen; 5. Support rod; 6. Slide hole; 7. Lifting rod; 8. Buoyancy body; 9. Cover plate; 10. First drainage outlet; 11. Second drainage outlet; 12. Transmission slide bar; 13. Transmission slide rail; 14. Guide slide groove; 15. Guide slider; 16. Scraper; 17. Handle; 18. Protective groove; 19. Reflective block; 20. Sleeve rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a municipal road drainage structure with an anti-backflow function.

[0034] Reference Figure 1-Figure 4A municipal road drainage structure with a backflow prevention function comprises a drainage well body 1, a well cover 2 is installed on the top of the drainage well body 1, a filter port 3 is arranged inside the drainage well body 1, a filter screen 4 is fixedly connected to the top of the filter port 3, a support rod 5 is fixedly connected inside the filter port 3, a sliding hole 6 is opened at one end of the support rod 5, a lifting rod 7 is slidably connected inside the sliding hole 6, a buoyancy body 8 is fixedly connected to the bottom of the lifting rod 7, a cover plate 9 is rotatably connected to the bottom of the well cover 2, a plurality of first drainage ports 10 are opened at one end of the well cover 2, a second drainage port 11 adapted to the first drainage port 10 is opened at one end of the cover plate 9, and a transmission mechanism for driving the cover plate 9 to rotate is arranged at one end of the lifting rod 7;

[0035] The transmission mechanism includes a sleeve rod 20 fixedly connected to the bottom of the cover plate 9, one end of the lifting rod 7 is fixedly connected to the transmission slide rod 12, one end of the sleeve rod 20 is provided with a transmission slide rail 13 adapted to the transmission slide rod 12, and one end of the lifting rod 7 is installed with a guide assembly for guiding the buoyancy body 8 to move along the length direction of the lifting rod 7;

[0036] Moreover, the guide assembly includes a guide slot 14 symmetrically provided at one end of the lifting rod 7, and a guide slider 15 adapted to the guide slot 14 is symmetrically fixedly connected inside the slide hole 6;

[0037] Furthermore, the surfaces of the lifting rod 7, the transmission slide rod 12 and the sleeve rod 20 are all coated with an organic silicon waterproof coating.

[0038] When in use, firstly, the first drain port 10 is aligned with the second drain port 11 so that the water flow on the top of the manhole cover 2 can pass through the first drain port 10 and the second drain port 11 to flow into the interior of the drainage well body 1, and the filter net 4 is used to filter and intercept the water flow that passes through the filter port 3 and enters the interior of the drainage well body 1, so that foreign objects such as leaves carried by the water flow remain in the filter port 3, thereby reducing the problem of blockage caused by the accumulation of foreign objects in the drainage well body 1. Then, when the water flow inside the manhole cover 2 increases and the water flow forms a backflow inside the manhole cover 2, the buoyancy of the water flow pushes the buoyancy body 8 and the lifting rod 7 to move upward along the length of the guide slide groove 14, and the lifting rod 7 drives the transmission slide rod 12 to insert upward into the interior of the sleeve rod 20 along the length direction of the guide slide groove 14, so that the lifting rod 7 drives the buoyancy body 8 to block the bottom of the filter port 3, thereby reducing the sewage backflowing from the drainage well body 1 through the filter port 3 and gushing out of the drainage well body 1;

[0039] When the lifting rod 7 drives the transmission slide rod 12 to insert upward into the interior of the sleeve rod 20 along the length direction of the guide slide groove 14, the transmission slide rod 12 pushes the sleeve rod 20 along the inner wall of the transmission slide rail 13 to drive the cover plate 9 to rotate, and the cover plate 9 drives the second drain port 11 to rotate until the first drain port 10 is staggered, and the cover plate 9 forms a shield on the bottom of the manhole cover 2 to reduce the water flow through the first drain port 10 and the second drain port 11 to flush foreign objects such as leaves filtered on the top of the filter net 4 out of the interior of the drainage well body 1, causing further pollution to the environment.

[0040] Reference Figure 2-Figure 4 The bottom of the sleeve rod 20 is symmetrically fixedly connected with a scraper 16, and the scraper 16 is in contact with the top of the filter screen 4.

[0041] During use, by setting the scraper 16, after the sewage backflow inside the drainage well body 1 ends, the buoyancy body 8 drives the lifting rod 7 to move downward along the length direction of the guide slide groove 14 under the action of gravity, and cooperates with the transmission mechanism to drive the cover plate 9 to rotate in the opposite direction to align the first drainage outlet 10 with the second drainage outlet 11. At the same time, the cover plate 9 drives the scraper 16 to rotate, and turns over foreign objects such as leaves that are stuck to the silt and compacted on the top of the filter screen 4, thereby reducing the blockage of the top of the filter screen 4.

[0042] Reference Figure 1 and Figure 2 , the top of the second drain port 11 passes through the manhole cover 2 and is fixedly connected with a handle 17;

[0043] A protective groove 18 is provided on the top of the manhole cover 2, and the handle 17 is installed inside the protective groove 18;

[0044] Furthermore, a reflective block 19 is fixedly connected to one end of the inner portion of the protection groove 18 .

[0045] When in use, firstly, the handle 17 is arranged inside the protective groove 18 so that the handle 17 is installed parallel to the top of the manhole cover 2, thereby reducing the problem that one end of the handle 17 protrudes from the top of the manhole cover 2 and affects the walking safety of pedestrians. At the same time, by setting a fixed connection between the handle 17 and the cover plate 9, people can directly rotate the cover plate 9 on the top of the manhole cover 2 to cooperate with the transmission slide rail 13 and the transmission slide rod 12 to drive the buoyancy body 8 to disengage from the interference with the bottom of the filter port 3, thereby facilitating the rapid removal of the jamming problem between the buoyancy body 8 and the drainage well body 1. At the same time, the reflective properties of the reflective block 19 are utilized to effectively remind people to stay away from the top of the manhole cover 2, thereby improving the safety of the device.

[0046] The implementation principle of the municipal road drainage structure with anti-backflow function in the present embodiment is as follows: first, water flows through the first drainage port 10 and the second drainage port 11 into the interior of the drainage well body 1, and the filter net 4 is used to filter and intercept the water flow that passes through the filter port 3 and enters the interior of the drainage well body 1, so that foreign objects such as leaves carried by the water flow remain in the interior of the filter port 3. Then, when the water flow rate inside the well cover 2 increases and the water flow forms a backflow inside the well cover 2, the buoyancy of the water flow pushes the buoyancy body 8 and the lifting rod 7 to move upward along the length of the guide slide groove 14, and the lifting rod 7 drives the transmission slide rod 12 to insert upward into the interior of the sleeve rod 20 along the length direction of the guide slide groove 14, so that the lifting rod 7 drives the buoyancy body 8 to block the bottom of the filter port 3, thereby reducing the sewage backflowing from the interior of the drainage well body 1 through the filter port 3 and gushing out of the interior of the drainage well body 1;

[0047] When the lifting rod 7 drives the transmission slide rod 12 to insert upward into the interior of the sleeve rod 20 along the length direction of the guide slide groove 14, the transmission slide rod 12 pushes the sleeve rod 20 along the inner wall of the transmission slide rail 13 to drive the cover plate 9 to rotate, and the cover plate 9 drives the second drain port 11 to rotate until the first drain port 10 is staggered, and the cover plate 9 forms a shield on the bottom of the manhole cover 2 to reduce the water flow through the first drain port 10 and the second drain port 11 to flush foreign objects such as leaves filtered on the top of the filter net 4 out of the interior of the drainage well body 1.

Claims

1. A municipal road drainage structure with anti-backflow function, comprising a drainage well body (1), characterized in that: A manhole cover (2) is installed on the top of the drainage manhole body (1), a filter port (3) is arranged inside the drainage manhole body (1), a filter screen (4) is fixedly connected to the top of the filter port (3), a support rod (5) is fixedly connected to the inside of the filter port (3), a sliding hole (6) is opened at one end of the support rod (5), a lifting rod (7) is slidably connected to the inside of the sliding hole (6), a buoyancy body (8) is fixedly connected to the bottom of the lifting rod (7), a cover plate (9) is rotatably connected to the bottom of the manhole cover (2), a plurality of first drainage ports (10) are opened at one end of the manhole cover (2), a second drainage port (11) adapted to the first drainage ports (10) is opened at one end of the cover plate (9), and a transmission mechanism for driving the cover plate (9) to rotate is arranged at one end of the lifting rod (7).

2. A municipal road drainage structure with anti-backflow function according to claim 1, characterized in that: The transmission mechanism comprises a sleeve rod (20) fixedly connected to the bottom of the cover plate (9); one end of the lifting rod (7) is fixedly connected to a transmission slide rod (12); one end of the sleeve rod (20) is provided with a transmission slide rail (13) adapted to the transmission slide rod (12); and one end of the lifting rod (7) is provided with a guide assembly for guiding the buoyancy body (8) to move along the length direction of the lifting rod (7).

3. A municipal road drainage structure with anti-backflow function according to claim 2, characterized in that: The guide assembly comprises a guide slot (14) symmetrically arranged at one end of the lifting rod (7), and a guide sliding block (15) adapted to the guide slot (14) is symmetrically fixedly connected inside the slide hole (6).

4. The municipal road drainage structure with backflow prevention function according to claim 2, characterized in that: The bottom of the sleeve rod (20) is symmetrically fixedly connected with a scraper (16), and the scraper (16) is in contact with the top of the filter screen (4).

5. The municipal road drainage structure with anti-backflow function according to claim 1, characterized in that: The top of the second drain outlet (11) passes through the manhole cover (2) and is fixedly connected to a handle (17).

6. A municipal road drainage structure with anti-backflow function according to claim 5, characterized in that: A protective groove (18) is provided on the top of the manhole cover (2), and the handle (17) is installed inside the protective groove (18).

7. A municipal road drainage structure with backflow prevention function according to claim 6, characterized in that: A reflective block (19) is fixedly connected to one end of the interior of the protective groove (18).

8. The municipal road drainage structure with anti-backflow function according to claim 2, characterized in that: The surfaces of the lifting rod (7), the transmission sliding rod (12) and the sleeve rod (20) are all coated with an organic silicon waterproof coating.

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