Accumulated water urgent drainage well lid based on safety use

Abstract

The invention relates to the technical field of drainage, in particular to a safety-based accumulated water urgent drainage well lid which comprises a conveying assembly and a rotating assembly, the conveying assembly comprises a supporting plate, a bent pipe, a first elastic part and a bearing plate, and the rotating assembly comprises a rotating shaft, a tray, a gear set, a moving rod and fan blades. In conventional rainstorm, accumulated water forms a vortex through the drainage channel to drive the fan blades to rotate, the movable rod pushes the bearing plate to slide down through gear transmission, and the bent pipe is opened to form siphon to accelerate drainage; when accumulated water is insufficient, the push block is clamped into the bearing plate limiting groove, the moving rod moves upwards to discharge gas in the bent pipe, and the elastic piece is matched with water gravity to push the bearing plate away to trigger siphon. The well lid does not need to be turned over manually, potential safety hazards of the road surface are eliminated, obstruction of vortexes to drainage is broken through the siphon effect, and the drainage rate is greatly increased.

Description

Technical Field

[0001] This invention relates to the field of drainage technology, and in particular to a manhole cover for emergency drainage of accumulated water for safety purposes. Background Technology

[0002] In urban municipal drainage systems, manhole covers serve as a core component of road surface drainage, and their drainage efficiency directly impacts the effectiveness of urban flood control. With rapid urbanization and frequent extreme rainfall, the rate of water runoff from urban roads has increased significantly, placing higher demands on the drainage capacity, automated operation, and safety performance of manhole covers. Currently, the traditional drainage manhole covers widely used in municipal engineering are mostly gravity-type structures, relying primarily on the gravity of rainwater to flow into the underground drainage network through the manhole cover's openings. These manhole covers can meet basic drainage needs during light rain and are the most fundamental supporting facility in urban drainage systems, widely used in various scenarios such as main urban roads, residential areas, and commercial areas.

[0003] However, traditional gravity drainage manhole covers have many technical defects in actual use: First, when water accumulates rapidly on the road during heavy rain, water vortexes are easily formed at the drainage outlet of the manhole cover. These vortexes can obstruct the normal flow of rainwater, resulting in a significant decrease in drainage rate. Often, it is necessary to manually open the manhole cover on-site to widen the drainage inlet, which not only consumes a lot of manpower, but also easily causes road safety hazards due to the displacement of the manhole cover, leading to accidents where pedestrians and vehicles fall in. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a safety-based emergency drainage manhole cover, which includes a conveying assembly, including a support plate, the support plate including a drainage channel, a bent pipe disposed on the outer wall of the support plate, a first elastic element disposed inside the bent pipe, and a load-bearing plate disposed inside the bent pipe; A rotating assembly includes a rotating shaft disposed inside the drainage channel, a tray disposed on the outer wall of the rotating shaft and the tray being connected to the drainage channel via a support rod, a drive gear disposed on the outer wall of the rotating shaft, a driven gear disposed on the surface of the tray, a moving rod disposed on the outer wall of the driven gear and the moving rod being extendable into the inside of the bent pipe, and fan blades disposed outside the rotating shaft. The outer wall of the moving rod is provided with a bidirectional threaded groove, and the inner wall of the driven gear is provided with a first slider that can slide along the inside of the bidirectional threaded groove.

[0006] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, the support plate is provided with a first through hole, and the bent pipe is connected to the first through hole; The drainage channel has a first inclined surface that fits into the fan blade at one end near the outside.

[0007] As a preferred embodiment of the safety-based emergency drainage manhole cover of the present invention, the rotating shaft and the driven gear are both connected to the tray via bearings.

[0008] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, the bent pipe includes an inlet pipe, a buffer pipe, and an outlet pipe. The outer wall of the water outlet pipe is provided with a second through hole for the movable rod to move.

[0009] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, the load-bearing plate is provided with a first movable channel, a first sliding rod is slidably provided inside the first movable channel, and both ends of the first sliding rod are provided with abutment blocks. The inner wall of the water outlet pipe is provided with a first slide rail for the sliding of the abutment block, and the inner wall of the first slide rail is provided with a buffer block.

[0010] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, wherein: the first movable channel is provided with a notch at one end near the water outlet pipe, allowing the abutment block to slide.

[0011] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, a second elastic element is provided inside the notch.

[0012] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, the inner wall of the water outlet pipe is provided with a limiting platform, one end of the first elastic member is connected to the outer wall of the limiting platform, and the other end is connected to the outer wall of the load-bearing plate.

[0013] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, the load-bearing plate is provided with a third through hole through which the rotating shaft can pass, and the outer wall of the load-bearing plate is provided with a limiting groove. The outer wall of the rotating shaft is recessed inward to form a second movable channel. A third elastic element is provided inside the second movable channel, and a push block is provided inside the second movable channel.

[0014] As a preferred embodiment of the water drainage manhole cover for safety purposes described in this invention, the push block has a second inclined surface on one end surface near the load-bearing plate.

[0015] The beneficial effects of this invention are as follows: This invention uses gear transmission to move a movable rod up and down, pushing the load-bearing plate downwards to open the bend in the pipe, creating a siphon effect to accelerate drainage. When the water level is insufficient, a push block engages with the load-bearing plate's limiting groove, the movable rod moves upwards to expel gas from the bend in the pipe, and then the elastic element, combined with the gravity of the water, pushes the load-bearing plate open, triggering the siphon. This design eliminates the need for manual manhole cover opening, avoiding safety hazards. The siphon effect eliminates the obstruction of drainage by vortices, increasing the drainage rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram illustrating the overall structure of a water-accumulating emergency drainage manhole cover for safety purposes according to the present invention. Figure 2 This is a schematic diagram of the overall structure of a water drainage manhole cover for safety purposes according to the present invention; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 In this invention Figure 3 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 5 This is a schematic diagram of the rotating shaft and gear meshing structure in this invention; Figure 6 In this invention Figure 4 Enlarged schematic diagram of the structure of region C in the middle; Figure 7 In this invention Figure 4 Enlarged schematic diagram of the structure of region D in the middle; Figure 8 In this invention Figure 7 Enlarged schematic diagram of the structure of region E in the middle; Figure 9 This is a schematic diagram of the load-bearing plate structure in this invention. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example

[0021] Reference Figures 1-9 This is the first embodiment of the present invention, which provides a water drainage manhole cover for safety purposes.

[0022] Specifically, the conveying assembly 1 includes a support plate 11, which includes a drainage channel 111, a bent pipe 12 disposed on the outer wall of the support plate 11, a first elastic element 13 disposed inside the bent pipe 12, and a load-bearing plate 14 disposed inside the bent pipe 12. The rotating assembly 2 includes a rotating shaft 21 disposed inside the drainage channel 111, a tray 211 disposed on the outer wall of the rotating shaft 21 and connected to the drainage channel 111 via a support rod 22, a drive gear 23 disposed on the outer wall of the rotating shaft 21, a driven gear 24 disposed on the surface of the tray 211, a moving rod 25 disposed on the outer wall of the driven gear 24 and extending into the bent pipe 12, and a fan blade 212 disposed outside the rotating shaft 21. The outer wall of the moving rod 25 is provided with a bidirectional threaded groove 251, and the inner wall of the driven gear 24 is provided with a first slider 241 that can slide along the inside of the bidirectional threaded groove 251.

[0023] The support plate 11 is installed on the land surface or can be installed below the existing manhole cover A, such as... Figure 2 As shown; a bent pipe 12 is connected to the lower surface of the support plate 11. The bent pipe 12 is an S-shaped pipe, and three of them are provided. A first elastic element 13 is fixedly installed inside the bent pipe 12. The first elastic element 13 is a compression spring, and a load-bearing plate 14 is fixedly connected to the lower end of the first elastic element 13.

[0024] Existing manhole covers require manual opening during heavy rain to increase the inlet area and drainage volume. The advantage of this design is that when the bent pipe 12 is filled with water, the weight of the water moves the supporting plate 14 downwards, opening the lower end of the bent pipe 12. When the weight of the water is sufficient to pull the supporting plate 14 down to the lower end of the opening in the bent pipe 12, water will gush out from the opening, creating a siphon effect. This siphon effect drives the surface water downwards, replacing the existing manhole cover design where water gravity creates vortices, causing swirling water at the drainage outlet and affecting the drainage rate. The siphon effect pulls water downwards, preventing vortex formation during drainage, increasing the drainage rate, and eliminating the need for manual opening of the manhole cover.

[0025] A downward drainage channel 111 is provided at the center of the support plate 11, and the drainage channel 111 passes through the support plate 11. A tray 211 is connected below the drainage channel 111. The cross-sectional area of ​​the tray 211 is smaller than that of the drainage channel 111. At the same time, the tray 211 is connected to the drainage channel 111 by a support rod 22. Meanwhile, fan blades 212 are arranged in an array at one end of the rotating shaft 21 near the support plate 11. The advantage of this design is that when a rainstorm occurs, the accumulated water will first fall into the underground drainage pipe through the drainage channel 111. When the accumulated water reaches a certain height, the drainage channel 111 will form a vortex, thereby pushing the fan blades 212 and driving the rotating shaft 21 to rotate. A drive gear 23 and a driven gear 24 are rotatably arranged on the upper surface of the rotating shaft 21. The drive gear 23 and the driven gear 24 are meshed and connected. Meanwhile, a moving rod 25 passes through the driven gear 24 to the inside of the bent pipe 12, and a bidirectional threaded groove 251 is provided on the outer surface of the moving rod 25. The bidirectional threaded groove 251 consists of two square... The sliding grooves are connected end to end in opposite spiral shapes, and a first slider 241 is rotatably mounted on the inner wall of the driven gear 24. When the driving gear 23 rotates, the driven gear 24 also rotates, and the first slider 241 slides along the inside of the bidirectional threaded groove 251. After sliding to the end of one groove, it enters the other groove, realizing the up-and-down movement of the moving rod 25. The advantage of this design is that when the road surface begins to accumulate water over a large area, a vortex is formed at the drainage channel 111, and the vortex drives the rotating shaft 21 to rotate. At this time, the movable rod 25 moves up and down, and when the movable rod 25 moves downward, it pushes the load-bearing plate 14 to slide downward. Then the load-bearing plate 14 disengages from the bent pipe 12. During the movement of the load-bearing plate 14, the internal air pressure decreases, causing water to fall with the load-bearing plate 14. When the load-bearing plate 14 is opened, water gushes outward, forming a siphon effect. At the same time, the drainage channel 111 has another advantage: while the vortex affects the falling speed of the water flow, it will also attract some garbage such as fallen leaves to the surrounding area, and finally drain away along the drainage channel 111. Example

[0026] Reference Figures 1-9This is the second embodiment of the present invention, which is implemented based on the previous embodiment.

[0027] Specifically, the support plate 11 is provided with a first through hole 112, and the bent tube 12 is connected to the first through hole 112; The drainage channel 111 has a first inclined surface 1111 that fits against the fan blade 212 at one end near the outside.

[0028] The upper end of the bent pipe 12 is installed on the inner wall of the first through hole 112, and the upper end of the drainage channel 111 is beveled to form a first inclined surface 1111, such as... Figure 2 As shown, an outward-opening opening is formed, making it easier for vortices to form. Additionally, some guiding structures, such as ribs or grooves, can be added to the surface of the first inclined plane 1111; this is existing technology and will not be elaborated further.

[0029] Both the rotating shaft 21 and the driven gear 24 are connected to the tray 211 via bearings 26.

[0030] The rotating shaft 21 is connected to the tray 211 by a bearing 26, and the driven gear 24 extends downward into a slide tube, which is connected to the tray 211 by the bearing 26.

[0031] The bent pipe 12 includes an inlet pipe 121, a buffer pipe 122, and an outlet pipe 123; The outer wall of the water outlet pipe 123 is provided with a second through hole 1231 for the movable rod 25 to move.

[0032] The bent pipe 12 includes an inlet pipe 121 connected to the first through hole 112, an upward-opening outlet pipe 123, and a U-shaped buffer pipe 122. When the accumulated water reaches a certain height, a vortex is formed at the drainage channel 111, driving the rotating shaft 21 to rotate, causing the load-bearing plate 14 to open. During the movement of the load-bearing plate 14, a negative pressure is formed inside the bent pipe 12, creating suction. When water sprays out, the negative pressure remains, increasing the flow rate. This eliminates the need to open the manhole cover to increase the water flow area. Furthermore, it avoids the need to open the manhole cover, preventing potential safety accidents.

[0033] It should be noted that the second through hole 1231 will not contact the bidirectional threaded groove 251. A sealing ring can be added to the inner wall of the second through hole 1231 to ensure sealing. Example

[0034] Reference Figures 1-9 This is the third embodiment of the present invention, which is different from the previous embodiment.

[0035] Specifically, the load-bearing plate 14 has a first movable channel 141 inside, and a first sliding rod 15 is slidably installed inside the first movable channel 141. Both ends of the first sliding rod 15 are provided with abutment blocks 151. The inner wall of the water outlet pipe 123 is provided with a first slide rail 1232 for the sliding of the contact block 151, and the inner wall of the first slide rail 1232 is provided with a buffer block 1233.

[0036] The load-bearing plate 14 has a cylindrical first movable channel 141 extending horizontally through it. First slide rods 15 are slidably installed at both ends of the first movable channel 141. Each end of the first slide rod 15 is fixedly connected to an abutment block 151. The abutment block 151 near the outside of the first slide rod 15 can slide along the first slide rail 1232 on the inner wall of the water outlet pipe 123, allowing the load-bearing plate 14 to slide up and down. Simultaneously, as... Figure 7 As shown, there is a buffer block 1233 at the upper end of the first slide rail 1232. When the abutment block 151 slides to this position, the abutment block 151 slides along the surface of the buffer block 1233, pushing the first slide rod 15 to move towards the middle position.

[0037] The first active channel 141 has a notch 1411 at one end near the water outlet pipe 123, which allows the abutment block 151 to slide.

[0038] There is a notch 1411 at both ends of the first active channel 141 to provide clearance for the sliding of the abutment block 151.

[0039] The notch 1411 has a second elastic element 16 inside.

[0040] The second elastic element 16 inside the notch 1411 is a compression spring. The second elastic element 16 is sleeved on the outer surface of the first slide rod 15. When the first slide rod 15 moves inward, the abutment block 151 will squeeze the second elastic element 16. When the first slide rod 15 is disengaged from the buffer block 1233, the second elastic element 16 will push the first slide rod 15 to move outward.

[0041] The inner wall of the water outlet pipe 123 is provided with a limiting platform 1234. One end of the first elastic member 13 is connected to the outer wall of the limiting platform 1234, and the other end is connected to the outer wall of the load-bearing plate 14.

[0042] An annular limiting platform 1234 is fixedly installed on the inner wall of the water outlet pipe 123. One end of the first elastic member 13 is fixedly connected to the lower surface of the limiting platform 1234, and the other end is connected to the upper surface of the load-bearing plate 14.

[0043] The load-bearing plate 14 is provided with a third through hole 142 through which the rotating shaft 21 can pass, and the outer wall of the load-bearing plate 14 is provided with a limiting groove 143. The outer wall of the rotating shaft 21 is recessed inward to form a second movable channel 213. A third elastic element 27 is provided inside the second movable channel 213, and a push block 28 is provided inside the second movable channel 213. A second inclined surface 281 is provided on the surface of the push block 28 near the load-bearing plate 14.

[0044] The load-bearing plate 14 has a third through hole 142 at its center, and the lower surface of the load-bearing plate 14 has a limit groove 143, such as Figure 9 As shown.

[0045] Meanwhile, a second movable channel 213 is provided on the lower outer wall of the rotating shaft 21. A third elastic element 27 is fixedly connected to the bottom of the second movable channel 213. The third elastic element 27 is a compression spring, and a push block 28 is fixedly connected to the other end of the third elastic element 27. The lower surface of the push block 28 is beveled to form a second inclined surface 281.

[0046] In use, the second through hole 1231 of this design can be left unsealed with the moving rod 25. When the water accumulates to a certain depth, the drainage channel 111 will form a vortex, driving the rotating shaft 21 to rotate. Subsequently, the moving rod 25 will move downwards through gear transmission. If the water accumulation is insufficient to push the load-bearing plate 14 down, the second inclined surface 281 on the lower surface of the push block 28 will slide along the inner wall of the third through hole 142. When it slides past the third through hole 142, the third elastic element 27 will push the push block 28 into the limiting groove 143. Then, the moving rod 25 moves upward, causing the load-bearing plate 14 to move upward, pushing the gas inside the water outlet pipe 123 out through the second through hole 1231. When the contact block 151 contacts the buffer block 1233, the first sliding rod 15 begins to slide inward, then pushes the push block 28 inward. When the distance the push block 28 retracts is less than the third through hole 142, the first elastic element 13, in conjunction with the gravity of the water, will immediately push the load-bearing plate 14 downward, and then water will spray out, forming a negative pressure inside, continuously drawing in and spraying out water. This achieves a siphon effect. By utilizing the siphon effect, the water flow rate is increased, thus ensuring that the water flow speed is not disturbed by vortices; at the same time, there is no need for manual overturning of manhole covers, ensuring that there are no safety hazards on the road surface.

[0047] When there is enough water, the internal gravity of the water can open the load-bearing plate 14, and the speed of the water spray will prevent the load-bearing plate 14 from closing.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A safety-oriented emergency drainage manhole cover, characterized in that: include The conveying assembly (1) includes a support plate (11), the support plate (11) including a drainage channel (111), a bent pipe (12) disposed on the outer wall of the support plate (11), a first elastic element (13) disposed inside the bent pipe (12), and a load-bearing plate (14) disposed inside the bent pipe (12). The rotating assembly (2) includes a rotating shaft (21) disposed inside the drainage channel (111), a tray (211) disposed on the outer wall of the rotating shaft (21), and the tray (211) is connected to the drainage channel (111) via a support rod (22), a drive gear (23) disposed on the outer wall of the rotating shaft (21), a driven gear (24) disposed on the surface of the tray (211), and a moving rod (25) disposed on the outer wall of the driven gear (24), and the moving rod (25) can extend into the inside of the bent pipe (12) and a fan blade (212) disposed outside the rotating shaft (21). The outer wall of the moving rod (25) is provided with a bidirectional threaded groove (251), and the inner wall of the driven gear (24) is provided with a first slider (241) that can slide along the inside of the bidirectional threaded groove (251).

2. The emergency drainage manhole cover for safety purposes as described in claim 1, characterized in that: The support plate (11) is provided with a first through hole (112), and the bent tube (12) is connected to the first through hole (112); The drainage channel (111) has a first inclined surface (1111) that fits against the fan blade (212) at one end near the outside.

3. The emergency drainage manhole cover for safety purposes as described in claim 2, characterized in that: The rotating shaft (21) and the driven gear (24) are both connected to the tray (211) via bearings (26).

4. The emergency drainage manhole cover for safety purposes as described in claim 3, characterized in that: The bent pipe (12) includes an inlet pipe (121), a buffer pipe (122), and an outlet pipe (123). The outer wall of the water outlet pipe (123) is provided with a second through hole (1231) for the movable rod (25) to move.

5. The emergency drainage manhole cover for safety purposes as described in claim 4, characterized in that: The load-bearing plate (14) is provided with a first movable channel (141), and a first slide rod (15) is slidably provided inside the first movable channel (141). Both ends of the first slide rod (15) are provided with abutment blocks (151). The inner wall of the water outlet pipe (123) is provided with a first slide rail (1232) for the sliding of the contact block (151), and the inner wall of the first slide rail (1232) is provided with a buffer block (1233).

6. The emergency drainage manhole cover for safety purposes as described in claim 5, characterized in that: The first active channel (141) has a notch (1411) at one end near the water outlet pipe (123) for the abutment block (151) to slide.

7. The emergency drainage manhole cover for safety purposes as described in claim 6, characterized in that: The notch (1411) is provided with a second elastic element (16).

8. The emergency drainage manhole cover for safety purposes as described in claim 7, characterized in that: The inner wall of the water outlet pipe (123) is provided with a limiting platform (1234). One end of the first elastic member (13) is connected to the outer wall of the limiting platform (1234), and the other end is connected to the outer wall of the load-bearing plate (14).

9. The emergency drainage manhole cover for safety purposes as described in claim 8, characterized in that: The load-bearing plate (14) is provided with a third through hole (142) through which the rotating shaft (21) can pass, and the outer wall of the load-bearing plate (14) is provided with a limiting groove (143). The outer wall of the rotating shaft (21) is recessed inward to form a second movable channel (213), and a third elastic element (27) is provided inside the second movable channel (213), and a push block (28) is provided inside the second movable channel (213).

10. The emergency drainage manhole cover for safety purposes as described in claim 9, characterized in that: The push block (28) has a second inclined surface (281) on one end surface near the load-bearing plate (14).

Images