Automatic lifting manhole cover
The automatic lifting manhole cover addresses inflexibility and safety issues by integrating a lifting mechanism, filtration, and warning systems, enabling efficient drainage, electricity generation, and enhanced safety features.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LINYI UNIVERSITY
- Filing Date
- 2024-12-25
- Publication Date
- 2026-07-07
AI Technical Summary
Conventional urban road manhole covers are inflexible, prone to blocking drainage pipelines, lack filtration and warning mechanisms, and pose safety risks during drainage operations.
An automatic lifting manhole cover equipped with a lifting mechanism, filtration assistance assembly, and warning assistance assembly, utilizing a lightweight floating sheet, guide rods, and a small hydroelectric generator to manage water flow, filter debris, and provide warnings.
Facilitates rapid water drainage, generates electricity, filters debris effectively, and enhances safety through a filtration cone-shaped mesh and fluorescent warning signs, improving operational efficiency and safety.
Smart Images
Figure 2026113329000001_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of urban road facilities, and specifically to automatic lifting manhole covers.
Background Art
[0002] Sponge city is a concept for the next-generation urban rain and flood countermeasures, which means that a city can have good elasticity in aspects such as adapting to environmental changes like a sponge and coping with natural disasters caused by rainwater, and may be called a "water-elastic city". That a city can have good "elasticity" in aspects such as adapting to environmental changes like a sponge and coping with natural disasters is, in internationally common terms, "construction of a low-impact development rainwater system". By absorbing, storing, infiltrating, and purifying water when it rains and releasing the stored water for use when necessary, the free movement of rainwater in the city is realized. In the prior art, urban road manhole covers are usually fixed at the positions of the manholes on the road. When there is a lot of water accumulating on the urban road, the blocked manhole covers become a burden on urban drainage and cannot operate flexibly according to the actual situation. Furthermore, conventional lifting manhole covers are only lifted to ensure the inflow of water from the manhole, and in this process, there is no filtering device to stop foreign objects or dirt. If accumulated over time, the drainage pipeline is likely to be blocked. Moreover, there is no corresponding warning structure, which may pose safety risks during drainage operations, is not attractive, and cannot meet the actual usage needs, so improvement and optimization are necessary.
[0003] Therefore, this application proposes an automatic lifting manhole cover to solve the above problems.
Summary of the Invention
Problems to be Solved by the Invention
[0004] The objective of this application is to provide an automatic lifting manhole cover for solving the problems raised in the above background art. [Means for solving the problem]
[0005] To achieve the above objective, the present invention proposes the following technical solution. The automatic lifting manhole cover includes a manhole cover body, a lifting mechanism, a filtration assistance assembly, and a warning assistance assembly, wherein the manhole cover body is placed in a manhole pipe, a drainage passage is connected to the lowest end of the manhole pipe, the manhole cover body is connected to the lifting mechanism, the lifting mechanism is placed inside the manhole pipe, the filtration assistance assembly is connected to the lifting mechanism and is provided at the bottom of the manhole cover body, and the warning assistance assembly is arranged at equal intervals on the lifting mechanism.
[0006] Preferably, the lifting mechanism includes a guide rod, a lightweight floating sheet, a small hydroelectric generator, a fixing plate member, a position limiting sleeve, a support rod, and a support plate member. The guide rod is arranged at equal intervals within the manhole pipe, the lightweight floating sheet is fixed to the lower end of the guide rod, the fixing plate member is fixed to the upper end of the guide rod, the fixing plate member is fixed to the lower side of the manhole cover body by screws, the small hydroelectric generator is positioned at the bottom of the lightweight floating sheet, the guide rod passes through the position limiting sleeve, the support rod is fixed to one side of the position limiting sleeve, the support plate member is fixed to one end of the support rod, the support plate member is fixed to the inner side wall of the manhole pipe by screws, and the filtration assistance assembly and the warning assistance assembly are positioned on the guide rod.
[0007] Preferably, the position-restricting sleeves are arranged at equal intervals on the side walls inside the manhole pipe, the position-restricting sleeves and the guide rods correspond to each other, the number of each is the same, and a total of four sets are arranged, the guide rods are movably inserted into the position-restricting sleeves, and the side walls of the guide rods and the side walls of the position-restricting sleeves fit together and are tightly in contact.
[0008] Preferably, the filtration auxiliary assembly includes a fixing ring, an arc-shaped connecting plate, a first mounting hole, an arc-shaped perforated board, a mounting bolt, a knob, and a notch, wherein the fixing ring is fixedly positioned on the guide rod, that is, the guide rod is fixedly positioned on the fixing ring by passing through the fixing ring at equal intervals, the fixing ring has symmetrically arranged threaded grooves, the arc-shaped connecting plate has symmetrically arranged first mounting holes, the arc-shaped perforated board is fixedly positioned on one side of the arc-shaped connecting plate, the notches are symmetrically provided on both sides of the arc-shaped connecting plate, the mounting bolt is screwed through the first mounting hole into the threaded groove of the fixing ring, and the knob is fixedly positioned on one end of the mounting bolt.
[0009] Preferably, rotation assist protrusions are symmetrically fixed to the outer side wall of the knob.
[0010] Preferably, the arc-shaped perforated boards are arranged at an angle, a total of four arc-shaped perforated boards are arranged, and the four arc-shaped perforated boards are joined together to form a single inverted cone-shaped filter mesh.
[0011] Preferably, the warning assistance assembly includes a fluorescent warning plate, a support body, a connecting side plate, a second mounting hole, a cleaning member, an arc-shaped projection, and an auxiliary bump, wherein the fluorescent warning plate is fixedly positioned on the guide rod, the connecting side plates are fixed symmetrically on both sides of the support body, the connecting side plates are provided with the second mounting hole, the connecting side plates are fixed to the inner side wall of the manhole pipe by screws, the cleaning member is fixedly positioned on the support body, the arc-shaped projections are fixed to the cleaning member at equal intervals, and the auxiliary bumps are positioned at equal intervals on the arc-shaped projections.
[0012] Preferably, the cleaning member, the support, and the fluorescent warning board are positioned in corresponding locations and are the same number, and the fluorescent warning board and the guide rod are the same number, with a total of four being arranged.
[0013] Compared to the prior art, the beneficial effects of this invention are as follows:
[0014] According to the automatic lifting manhole cover device of this invention, the installed lifting mechanism is used in combination with a filtration assistance assembly and a warning assistance assembly. On the one hand, by using a lightweight floating sheet, a guide rod, and a position limiting sleeve in combination, the manhole cover can be pushed up when the flow rate of the drainage passage is high, allowing for rapid water storage and removal of blockages. At the same time, a small hydroelectric generator located beneath the lightweight floating sheet generates electricity using the water flow, producing electrical energy while discharging the accumulated water, making it environmentally friendly and green. On the other hand, the installed four arc-shaped perforated boards form a filtration cone-shaped mesh, which stores foreign matter such as crushed stone removed by filtration and only requires periodic cleaning. Furthermore, to meet the needs of actual use, a fluorescent warning sign can be installed to enhance its warning effect and prevent the occurrence of dangerous situations. [Brief explanation of the drawing]
[0015] [Figure 1] This is a plan view showing the structural connections of the automatic lifting manhole cover device of the present invention. [Figure 2] This is an enlarged schematic diagram showing the structural connection in Figure 1A of the present application. [Figure 3] This is a bottom view showing the structural connections of the automatic lifting manhole cover device of the present invention. [Figure 4] This is an enlarged schematic diagram showing the structural connection in Figure 3B of the present application. [Figure 5] This is a schematic diagram showing the partial structural connections of the filtration auxiliary assembly of the present invention. [Figure 6] This is a schematic diagram showing the partial structural connections of the warning assistance assembly of the present invention. [Modes for carrying out the invention]
[0016] The technical concepts in the embodiments of this application will be described clearly and completely below. All other embodiments that a person skilled in the art can obtain without creative work based on the embodiments of this invention are within the scope of the invention.
[0017] Referring to Figures 1 to 3, the automatic lifting manhole cover includes a manhole cover body 3, a lifting mechanism, a filtration assistance assembly, and a warning assistance assembly. The manhole cover body 3 is placed in a manhole pipe 2, a drainage passage 1 is connected to the lowest end of the manhole pipe 2, the manhole cover body 3 is connected to the lifting mechanism, the lifting mechanism is located inside the manhole pipe 2, the filtration assistance assembly is connected to the lifting mechanism and is located at the bottom of the manhole cover body 3, and the warning assistance assemblies are arranged at equal intervals on the lifting mechanism. The lifting mechanism includes a guide rod 401, a lightweight floating sheet 402, a small hydroelectric generator 403, a fixing plate member 404, a position limiting sleeve 405, a support rod 406, and a support plate member 407. The guide rods 401 are arranged at equal intervals within the manhole pipe 2, with a lightweight floating sheet 402 fixed to the lower end and a fixing plate member 404 fixed to the upper end. The fixing plate member 404 is fixed to the underside of the manhole cover body 3 by screws, and a small hydroelectric generator 403 is positioned at the bottom of the lightweight floating sheet 402. The guide rods 401 pass through position restriction sleeves 405, which are arranged at equal intervals on the side walls inside the manhole pipe 2. The position restriction sleeves 405 and the guide rods 401 correspond to each other, and there are the same number of sets, totaling four sets. The guide rods 401 are movably inserted into the position restriction sleeves 405, and the side walls of the guide rods 401 and the side walls of the position restriction sleeves 405 fit together and are tightly in contact. Here, the position restriction sleeves 402 function to guide and restrict the position of the guide rods 401 during their vertical movement, thereby ensuring the stability of the guide rods 401's operation. A support rod 406 is fixedly positioned on one side of the position limiting sleeve 405, a support plate member 407 is fixedly positioned on one end of the support rod 406, the support plate member 407 is fixed to the inner side wall of the manhole pipe 2 by screws, and a filtration assistance assembly and a warning assistance assembly are positioned on the guide rod 401.
[0018] When the water flow in the drainage passage 1 rises, the lightweight floating sheet 402 rises due to buoyancy, pushing up the manhole cover body 3 via the guide rod 401. At this time, the manhole cover body 3 extends outward, releasing the blockage of the manhole pipe 2, and allowing accumulated water from outside to flow into the drainage passage 1, quickly filling the water and removing the blockage. At the same time, a small hydroelectric generator 403 positioned below the lightweight floating sheet 402 generates electricity using the water flow, producing electrical energy while discharging accumulated water, making it environmentally friendly and green.
[0019] Referring to Figures 2 and 5, the filtration auxiliary assembly includes a fixing ring 500, an arc-shaped connecting plate 501, a first mounting hole 502, an arc-shaped perforated board 503, a mounting bolt 504, a knob 505, and a notch 506. The fixing ring 500 is fixedly positioned on the guide rod 401, that is, the guide rod 401 passes through the fixing ring 500 at equal intervals and is fixedly positioned on the fixing ring 500, the fixing ring 500 is provided with symmetrically threaded grooves, the arc-shaped connecting plate 501 is provided with symmetrically first mounting holes 502, and the arc-shaped perforated board 503 is fixedly positioned on one side of the arc-shaped connecting plate 501. Here, the arc-shaped perforated board 503 is positioned at an angle, and a total of four arc-shaped perforated boards 503 are arranged, and the four arc-shaped perforated boards 503 are joined together to form a single inverted cone-shaped filter mesh, which removes foreign matter and crushed stone from the accumulated water by filtration. Furthermore, the four arc-shaped perforated boards 503 that are arranged form a filtration cone-shaped mesh, so foreign matter such as crushed stone removed by filtration can be stored and cleaned periodically. In addition, the four arc-shaped perforated boards 503 that are arranged can be individually replaced and maintained in the filtration cone-shaped mesh, and there is no need to remove the whole as a whole, thus improving the efficiency of maintenance work after installation and the effectiveness of trial use. Notches 506 are provided symmetrically on both sides of the arc-shaped connecting plate 501, and the mounting bolts 504 are screwed into the threaded grooves of the fixing ring 500 through the first mounting holes 502, and a knob 505 is fixedly positioned on one end of the mounting bolt 504, and a rotation assist protrusion is fixed symmetrically on the outer side wall of the knob 505. Here, by providing a rotation assist protrusion on the outer side wall of the knob 505, it can be loosened or tightened by a rotational operation by the worker, and auxiliary work is not required as needed, thus improving operability and increasing work flexibility.
[0020] Referring to FIGS. 4 and 6, the warning auxiliary assembly includes a fluorescent warning plate 601, a support 602, a connection side plate 603, a second mounting hole 604, a cleaning member 605, an arcuate convex portion 606, and an auxiliary bump 607. The fluorescent warning plate 601 is fixedly arranged on the guide rod 401. The connection side plates 603 are symmetrically and fixedly arranged on both sides of the support 602. The second mounting hole 604 is provided in the connection side plate 603. The connection side plate 603 is fixedly arranged on the inner side wall of the manhole pipe 2 by screws. The cleaning member 605 is fixedly arranged on the support 602. The arcuate convex portions 606 are fixedly arranged on the cleaning member 605 at equal intervals. The auxiliary bumps 607 are arranged on the arcuate convex portions 606 at equal intervals. Here, by providing the arcuate convex portion 606 and the auxiliary bump 607, foreign matters or dirt that are fixed or difficult to remove and coagulated on the fluorescent warning plate 601 can be effectively scraped off, and the efficiency of the cleaning operation can be improved. In addition, the cleaning member 605, the support 602, and the fluorescent warning plate 601 have corresponding arrangement positions and the same number. The fluorescent warning plate 601 and the guide rod 401 have the same number, and a total of four are arranged. By arranging the fluorescent warning plate 601, the warning effect is strengthened, the occurrence of dangerous situations is avoided, and during the lifting and lowering process of the fluorescent warning plate 601, the fluorescent warning plate 601 contacts the cleaning member 605, and the cleaning member 605 sweeps foreign matters or dirt on the fluorescent warning plate 601, thereby ensuring the warning effect of the fluorescent warning plate 601.
[0021] Although the embodiments of the present application have been illustrated and described, those skilled in the art can make various changes, modifications, substitutions, and deformations to these embodiments without departing from the principle and spirit of the present application, and it can be understood that the scope of the present application is limited by the appended claims and their equivalents.
Description of Reference Signs
[0022] 1 Drainage passage 2 Manhole pipe 3 Manhole cover body 401 Guide rod 402 Lightweight floating sheet 403 Small hydraulic generator 404 Fixed plate member 405 Position-Restricted Sleeve 406 Support Rod 407 Support plate member 500 Fixing Rings 501 Arc-shaped connecting plate 502 First mounting hole 503 Arc-shaped perforated board 504 Mounting bolts 505 Snacks 506 Notch 601 Fluorescent warning sign 602 Support 603 Connecting side plate 604 Second mounting hole 605 Cleaning parts 606 Arc-shaped protrusion 607 Auxiliary bump
Claims
1. The manhole cover body (3), the lifting mechanism, the filtration assistance assembly, and the warning assistance assembly are included. The manhole cover body (3) is placed on the manhole pipe (2), a drainage passage (1) is connected to the lowest end of the manhole pipe (2), the manhole cover body (3) is connected to the lifting mechanism, the lifting mechanism is placed inside the manhole pipe (2), the filtration assistance assembly is connected to the lifting mechanism and is provided at the bottom of the manhole cover body (3), and the warning assistance assembly is arranged at equal intervals on the lifting mechanism. An automatically lifting manhole cover characterized by the following features.
2. The lifting mechanism includes a guide rod (401), a lightweight floating sheet (402), a small hydroelectric generator (403), a fixed plate member (404), a position limiting sleeve (405), a support rod (406), and a support plate member (407). The guide rods (401) are arranged at equal intervals within the manhole pipe (2), with the lightweight floating sheet (402) fixed to the lower end and the fixing plate member (404) fixed to the upper end. The fixing plate member (404) is fixed to the lower side of the manhole cover body (3) by screws. The small hydroelectric generator (403) is positioned at the bottom of the lightweight floating sheet (402). The guide rods (401) pass through the position limiting sleeve (405), with the support rod (406) fixed to one side of the position limiting sleeve (405). The support plate member (407) is fixed to one end of the support rod (406), with the support plate member (407) fixed to the inner side wall of the manhole pipe (2) by screws. The filtration auxiliary assembly and the warning auxiliary assembly are positioned on the guide rod (401). The automatic lifting manhole cover according to feature 1.
3. The position-restricting sleeves (405) are arranged at equal intervals on the side walls inside the manhole pipe (2), and the position-restricting sleeves (405) and the guide rods (401) are arranged in corresponding positions and the same number, with a total of four sets arranged, the guide rods (401) are movably inserted into the position-restricting sleeves (405), and the side walls of the guide rods (401) and the side walls of the position-restricting sleeves (405) fit together and are in close contact. The automatic lifting manhole cover according to feature 2.
4. The filtration auxiliary assembly includes a fixing ring (500), an arc-shaped connecting plate (501), a first mounting hole (502), an arc-shaped perforated board (503), a mounting bolt (504), a knob (505), and a notch (506). The fixing ring (500) is fixedly positioned on the guide rod (401), that is, the guide rod (401) is fixedly positioned on the fixing ring (500) by passing through the fixing ring (500) at equal intervals, the fixing ring (500) is provided with symmetrically threaded grooves, the arc-shaped connecting plate (501) is provided with symmetrically first mounting holes (502), the arc-shaped perforated board (503) is fixedly positioned on one side of the arc-shaped connecting plate (501), the notches (506) are provided symmetrically on both sides of the arc-shaped connecting plate (501), the mounting bolt (504) is screwed into the threaded groove of the fixing ring (500) by passing through the first mounting hole (502), and the knob (505) is fixedly positioned on one end of the mounting bolt (504). The automatic lifting manhole cover according to feature 1.
5. Rotation assist protrusions are symmetrically fixed to the outer side wall of the knob (505). The automatic lifting manhole cover according to feature 4.
6. The arc-shaped perforated boards (503) are arranged at an angle, and a total of four of the arc-shaped perforated boards (503) are arranged, and the four arc-shaped perforated boards (503) are joined together to form a single inverted cone-shaped filter mesh. The automatic lifting manhole cover according to feature 4.
7. The aforementioned warning auxiliary assembly includes a fluorescent warning plate (601), a support (602), a connecting side plate (603), a second mounting hole (604), a cleaning member (605), an arc-shaped protrusion (606), and an auxiliary bump (607). The fluorescent warning board (601) is fixedly positioned on the guide rod (401), the connecting side plates (603) are fixed symmetrically on both sides of the support (602), the connecting side plates (603) are provided with the second mounting holes (604), the connecting side plates (603) are fixed to the inner side wall of the manhole pipe (2) by screws, the cleaning member (605) is fixedly positioned on the support (602), the arc-shaped protrusions (606) are fixedly positioned on the cleaning member (605) at equal intervals, and the auxiliary bumps (607) are positioned on the arc-shaped protrusions (606) at equal intervals. The automatic lifting manhole cover according to feature 1.
8. The cleaning member (605), the support (602), and the fluorescent warning plate (601) are positioned in corresponding locations and are the same number. The fluorescent warning plate (601) and the guide rod (401) are the same number, with a total of four being arranged. The automatic lifting manhole cover according to feature 7.