A municipal engineering road drainage device and a use method thereof

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By designing a municipal engineering road drainage device with limiting plates and interception components, it achieves adaptive adjustment according to water volume, intercepts impurities, prevents grate blockage, improves drainage efficiency, and reduces sewer odor, thus solving the problem of impurity accumulation in urban road drainage systems.

CN122169573APending Publication Date: 2026-06-09HARBIN NO 1 MUNICIPAL PLANNING ENG CO

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: HARBIN NO 1 MUNICIPAL PLANNING ENG CO
Filing Date: 2026-04-29
Publication Date: 2026-06-09

AI Technical Summary

Technical Problem

In urban road drainage systems, road debris can easily accumulate at the grates, causing blockages, affecting drainage efficiency, and potentially leading to urban flooding.

Method used

A municipal engineering road drainage device was designed, comprising a limiting plate, an interception component, and an elastic telescopic component. Through the dynamic adjustment of the baffle and the float, the water volume is adaptively adjusted to intercept impurities and prevent the grate from clogging.

Benefits of technology

It effectively prevents the drain grate from clogging, improves drainage efficiency, reduces the emission of odors from the sewer, and reduces the risk of flooding.

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Abstract

A municipal engineering road drainage device and its usage method belong to the municipal engineering field. It includes a drainage outlet; the top of the drainage outlet has a groove for accommodating a grate; symmetrically fixed limit plates are connected to the inner wall of the drainage outlet; each limit plate has a vertical through hole; an interception component is fixedly connected to the upper end of the limit plate; the interception component includes an elastic telescopic member fixedly connected to the limit plate; the free end of the elastic telescopic member passes through the through hole and is fixedly connected to a baffle located at the lower end of the limit plate. This invention not only adaptively adjusts the height of the float according to the water volume, intercepting impurities around the float and preventing debris from accumulating on the grate and causing blockage, but also reduces sewer odors emanating from the grate end on sunny days.

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Description

Technical Field

[0001] This invention relates to a road drainage device and its usage method for municipal engineering, belonging to the field of municipal engineering. Background Technology

[0002] Drainage outlets are installed on both sides of urban roads to drain rainwater. However, during the flow of rainwater, debris such as garbage and leaves on the road surface also flow with the rainwater, accumulating at the grates and even clogging them, reducing drainage capacity and causing urban flooding. Therefore, it is necessary to improve these outlets. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems existing in the background art and to provide a municipal engineering road drainage device and its usage method.

[0004] The present invention achieves the above objectives by adopting the following technical solution:

[0005] A municipal engineering road drainage device includes a drainage outlet; the top of the drainage outlet is provided with a groove for accommodating a grate; symmetrically fixed limit plates are fixedly connected to the inner wall of the drainage outlet; each limit plate is provided with a vertical through hole; an interception component is fixedly connected to the upper end of the limit plate; the interception component includes an elastic telescopic component fixedly connected to the limit plate; the free end of the elastic telescopic component passes through the through hole and is fixedly connected to a baffle located at the lower end of the limit plate.

[0006] A method of using a municipal engineering road drainage device, the method comprising the following steps:

[0007] Step 1: When rainwater flows from the road surface to the drain outlet, it flows through the grate to the top of the baffle.

[0008] Step 2: After the rainwater accumulates to a predetermined volume at the top of the baffle, the baffle moves downward under the action of gravity of the rainwater, discharging some of the rainwater from the top of the baffle.

[0009] Step 3: As the baffle moves downwards, the interception component drives the float and vertical rod upwards to intercept debris on the water surface, preventing the grate from clogging. Compared with the prior art, the beneficial effects of this invention are: this invention can adaptively adjust the height of the float according to the water volume, so that impurities are intercepted around the float, preventing debris from accumulating on the grate and causing clogging; at the same time, this invention can also reduce the odor emanating from the grate end of the sewer on sunny days. Attached Figure Description

[0010] Figure 1 This is the front view of the present invention;

[0011] Figure 2This is a front sectional view of the grate of the present invention;

[0012] Figure 3 This is a top view of the comb of the present invention;

[0013] Figure 4 This is a front view of the drain outlet of the present invention;

[0014] Figure 5 This is a front sectional view of the interception component of the present invention;

[0015] Figure 6 This is a schematic diagram of the connection structure between the float and the communication device of the present invention;

[0016] Figure 7 This is a schematic diagram of the connection structure between the float and the connecting rod of the present invention;

[0017] Figure 8 This is a top view of the float of the present invention;

[0018] Figure 9 This is a schematic diagram of the float position when the rainfall is relatively low, according to the present invention;

[0019] Figure 10 This is a schematic diagram showing the position where the water level above the baffle reaches a predetermined value according to the present invention;

[0020] Figure 11 This is a schematic diagram of the position above the baffle where the water level is greater than a predetermined value according to the present invention. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Specific implementation method one: as follows Figures 1-11 As shown in the figure, this embodiment describes a municipal engineering road drainage device, including a drain outlet 2; the top of the drain outlet 2 is provided with a groove 22 for accommodating a grate 1; limiting plates 4 are symmetrically fixedly connected to the inner wall of the drain outlet 2; each limiting plate 4 is provided with a vertical through hole 41; an interception component 3 is fixedly connected to the upper end of the limiting plate 4; the interception component 3 includes an elastic telescopic member 33 fixedly connected to the limiting plate 4; the free end of the elastic telescopic member 33 passes through the through hole 41 and is fixedly connected to a baffle 34 located at the lower end of the limiting plate 4. The elastic telescopic member 33 makes the limiting plate 4 and the baffle 34 abut against each other to prevent sewer backflow odor.

[0023] The inner wall of the drain outlet 2 is provided with an arc-shaped groove 21 located below the baffle 34. When the baffle 34 moves downward through the groove 21, the gap between the baffle 34 and the inner wall of the drain outlet 2 increases, thereby increasing the drainage volume.

[0024] When no rainwater accumulates at the upper end of the baffle 34, the baffle 34 abuts against the lower end of the limiting plate 4.

[0025] The elastic telescopic component 33 includes a cylindrical body 331 fixedly connected to the upper end of the limiting plate 4; the interior of the cylindrical body 331 is provided with a sliding rod 332 that slides in cooperation with the through hole 41; one end of the sliding rod 332 located inside the cylindrical body 331 is fixedly connected to a piston I 334; a spring 333 is fixedly connected between the piston I 334 and the upper end face of the limiting plate 4.

[0026] The upper end of the rectangular frame of the grate 1 is provided with a rectangular groove 11; the bottom of the rectangular groove 11 is provided with a plurality of vertical through holes 12 penetrating the rectangular frame; the rectangular groove 11 can accommodate rainwater during light rain (i.e., when the upper end of the baffle 34 cannot quickly accumulate rainwater 5 to a certain volume).

[0027] The interception component 3 also includes a float 31; the float 31 is disposed inside the rectangular groove 11, and the float 31 is symmetrically provided with vertical holes 312, and the float 31 is fixedly connected to the connecting device 32 through the holes 312; when the rectangular groove 11 contains rainwater, the float 31 can move upward relative to the grate 1 and the connecting rod 323, and protrude above the road, blocking debris that drifts to the vicinity of the grate 1 with the rainwater 5.

[0028] The connecting device 32 includes a housing 321 fixedly connected to the limiting plate 4. Inside the housing 321 is a connecting rod 323 that slides within the corresponding through hole 12. A piston II 322 is provided between one end of the connecting rod 323 and the inner wall of the housing 321, and a vertical sliding groove 324 is provided at the other end of the connecting rod 323. A transmission rod 325 slides within the sliding groove 324 and is fixedly connected to the hole 312. The cross-sectional area of the cavity inside the housing 321 is smaller than that inside the cylinder 331, causing the displacement of the connecting rod 323 inside the housing 321 to be greater than the displacement of the sliding rod 332. This results in the float 31 rising higher and more easily emerging above the water surface. Simultaneously, the surface of the float 31 is coated with easily identifiable colors such as red to warn passersby that this is the drain outlet 2 and to prevent them from approaching. The fact that the float 31 is higher than the water surface can also prevent the waves generated by the rainwater 5 flowing on the road surface from submerging the float 31, causing debris floating on the water surface to pass over the float 31, thus reducing the interception effect.

[0029] The bottom of the transmission rod 325 is provided with a vent hole I 326, and the top side of the vent hole I 326 is symmetrically provided with vent holes II 327; the side wall of the float 31 is provided with a vent hole III 311 that communicates with the corresponding vent hole II 327; the vent holes II 327 and III 311 are inclined. The vent holes I 326, II 327, and III 311 connect the outside world with the inside of the slide 324, preventing the float 31 from generating a brief negative pressure when it moves upward, which would cause the float 31 to move upward slowly.

[0030] The bottom side of the outer shell 321 is provided with an air passage I 328; the bottom side of the cylinder 331 is provided with an air passage II 335, and the air passage I 328 and the air passage II 335 are connected.

[0031] The width of the float 31 is smaller than the width of the rectangular slot 11.

[0032] The lower end of the float 31 is fixedly connected to a plurality of vertical rods 35 that slide in cooperation with the corresponding through holes 12. The vertical rods 35 intercept some of the debris that has sunk below the water surface.

[0033] A method of using a municipal engineering road drainage device, the method comprising the following steps:

[0034] Step 1: When rainwater 5 flows from the road surface to the drain outlet 2, it flows through the grate 1 to the top of the baffle 34.

[0035] Step 2: After the rainwater 5 at the top of the baffle 34 accumulates to a predetermined volume, the baffle 34 moves downward under the gravity of the rainwater 5, discharging part of the rainwater 5 from the top of the baffle 34.

[0036] Step 3: As the baffle 34 moves downward, the interception component 3 drives the float 31 and the vertical rod 35 to move upward, intercepting the garbage on the water surface and preventing the grate 1 from getting clogged.

[0037] The working principle of this invention is as follows: when rainwater 5 flows from the road surface to the drainage outlet 2, it flows through the grate 1 to the upper end of the baffle 34.

[0038] During light rain, rainwater 5 from the road surface flows towards the drain outlet 2, passing through the rectangular groove 11 at the top of the grate 1 and accumulating inside the rectangular groove 11. The float 31 moves upward due to the buoyancy of the accumulated water, driving the transmission rod 325 to move upward, making the float 31 higher than the road surface and the height of the grate 1. As the rainwater 5 flows, debris around the grate 1 is blocked by the float 31. The rainwater 5 flows into the rectangular groove 11 from the outer wall, then overflows from the inner wall, passes through the grate 1, flows into the drain outlet 2, and accumulates at the top of the baffle 34.

[0039] After the rainwater 5 accumulates to a predetermined volume at the upper end of the baffle 34, the weight of the rainwater 5 increases with the increase in volume, which in turn causes the baffle 34 to move downward under the gravity of the rainwater 5, discharging some of the rainwater 5 from the upper end of the baffle 34. When the rain stops, the rainwater 5 at the upper end of the baffle 34 is gradually discharged, and the baffle 34 returns to its original position under the elastic force of the spring 333, abutting against the lower end of the limiting plate 4, so that a certain amount of rainwater 5 accumulates at the upper end of the baffle 34. On sunny days, the rainwater 5 will evaporate, which plays a positive role in delaying the high temperature in the city. At the same time, the lower end of the limiting plate 4 abuts against the baffle 34, which can effectively prevent the sewer from flowing back to the grate 1 and spreading outward, reducing the discomfort caused by sewer backflow to passing residents.

[0040] As the baffle 34 moves downward, it drives the slide rod 332 and piston I 334 to move downward together, compressing the spring 333. Piston I 334 compresses the gas inside the cylinder 331, increasing the air pressure. The gas inside the cylinder 331 enters the outer shell 321 through air passage I 328 and air passage II 335, pushing piston II 322 and connecting rod 323 upward. This causes the connecting rod 323 to drive the transmission rod 325 and float 31 upward. The float 31 drives the vertical rod 35 upward, making the float 31 and vertical rod 35 higher than the road surface, thus intercepting garbage on the water surface. Rainwater 5 can flow into the drain outlet 2 through the gap between the vertical rods 35, preventing the grate 1 from becoming clogged.

[0041] During moderate or heavy rain, the water inflow at grate 1 increases. Compared to light rain, a certain volume of rainwater 5 accumulates in a shorter time, causing baffle 34 to move downwards according to the above process and drain water. When the downward movement of baffle 34 is small (i.e., the drainage provided by the space between baffle 34 and limiting plate 4 is less than the water inflow at drain outlet 2), although it is in a drainage state, the rainwater 5 accumulated at the upper end of baffle 34 still gradually increases, causing baffle 34 to move further downwards, which in turn drives float 31 to rise further according to the above process. This allows the drainage between baffle 34 and limiting plate 4 and the height of float 31 to adapt to the amount of rainfall, preventing baffle 34 from affecting the drainage volume and causing rainwater 5 to accumulate at the upper end of the road, resulting in waterlogging. Rainwater 5 on the road flows into the drain outlet 2 through the gap between the vertical bars 35. The horizontal grate 1 blocks the debris and lifts it to the vertical bars 35 to block the debris vertically. In this way, the debris floating on the water surface will always float on the water surface, and the bottom of the rainwater 5 can pass smoothly through the gap between the vertical bars 35 without being blocked.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A municipal engineering road drainage device, characterized in that: Includes a drain outlet (2); the top of the drain outlet (2) is provided with a groove (22) that can accommodate a grate (1); symmetrically fixedly connected limit plates (4) are fixedly connected to the inner wall of the drain outlet (2); each limit plate (4) is provided with a vertical through hole (41); an interception component (3) is fixedly connected to the upper end of the limit plate (4); the interception component (3) includes an elastic telescopic component (33) fixedly connected to the limit plate (4); the free end of the elastic telescopic component (33) passes through the through hole (41) and is fixedly connected to the baffle (34) located at the lower end of the limit plate (4).

2. A municipal engineering road drainage device according to claim 1, characterized in that: The inner wall of the drain outlet (2) is provided with an arc-shaped groove (21) located below the baffle (34).

3. A municipal engineering road drainage device according to claim 1, characterized in that: When no rainwater accumulates at the upper end of the baffle (34), the baffle (34) abuts against the lower end of the limiting plate (4).

4. A municipal engineering road drainage device according to claim 1, characterized in that: The elastic telescopic component (33) includes a cylinder (331) fixedly connected to the upper end of the limiting plate (4); the cylinder (331) is provided with a slide rod (332) that slides in cooperation with the perforation (41); a piston I (334) is fixedly connected to one end of the slide rod (332) located inside the cylinder (331); a spring (333) is fixedly connected between the piston I (334) and the upper end face of the limiting plate (4).

5. A municipal engineering road drainage device according to claim 4, characterized in that: The upper end of the rectangular frame of the grating (1) is provided with a rectangular groove (11); the bottom of the rectangular groove (11) is provided with a plurality of vertical through holes (12) penetrating the rectangular frame. The interception component (3) also includes a float (31); the float (31) is disposed inside the rectangular groove (11), and vertical holes (312) are symmetrically provided on the float (31). The float (31) is fixedly connected to the communication device (32) through the holes (312). The connecting device (32) includes a housing (321) fixedly connected to the limiting plate (4), and a connecting rod (323) that slides and engages with the corresponding through hole (12) inside the housing (321); a piston II (322) is provided between one end of the connecting rod (323) and the inner wall of the housing (321), and a vertical groove (324) is provided at the other end of the connecting rod (323); a transmission rod (325) that slides and engages with the groove (324) is provided inside the groove (324); the transmission rod (325) is fixedly connected in the hole (312).

6. A municipal engineering road drainage device according to claim 5, characterized in that: The bottom of the transmission rod (325) is provided with a vent hole I (326), and the top side of the vent hole I (326) is symmetrically provided with a vent hole II (327); the side wall of the float (31) is provided with a vent hole III (311) that communicates with the corresponding vent hole II (327); the vent holes II (327) and III (311) are inclined.

7. A municipal engineering road drainage device according to claim 6, characterized in that: The bottom side of the outer shell (321) is provided with air passage I (328); the bottom side of the cylinder (331) is provided with air passage II (335), and air passage I (328) and air passage II (335) are connected.

8. A municipal engineering road drainage device according to claim 7, characterized in that: The width of the float (31) is smaller than the width of the rectangular slot (11).

9. A municipal engineering road drainage device according to claim 8, characterized in that: The lower end of the float (31) is fixedly connected to a plurality of vertical rods (35) that slide in cooperation with the corresponding through hole (12).

10. The method of using a municipal engineering road drainage device according to claim 9, characterized in that: The method of use includes the following steps: Step 1: When rainwater (5) on the road surface flows towards the drain (2), it flows through the grate (1) to the top of the baffle (34); Step 2: After the rainwater (5) at the top of the baffle (34) accumulates to a predetermined volume, the baffle (34) moves downward under the gravity of the rainwater (5) to discharge some of the rainwater (5) at the top of the baffle (34); Step 3: As the baffle (34) moves downward, the interception component (3) drives the float (31) and the vertical rod (35) to move upward, intercepting the garbage on the water surface and preventing the grate (1) from getting clogged.