Intelligent well lid alarm device
By incorporating color sensors and microcontrollers into the manhole covers, intelligent manhole cover alarm devices have solved the problem of difficulty in timely detection of abnormal opening of manhole covers, enabling real-time monitoring and early warning, and improving the intelligence of urban management and residents' satisfaction.
Patent Information
- Application Number
- CN202520480036.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-19
AI Technical Summary
The existing manhole cover design lacks alarm functions, making it difficult to detect abnormal opening or damage in a timely manner, affecting the safety of pedestrians and vehicles, and relying on manual inspection is inefficient.
Design an intelligent manhole cover alarm device, which incorporates a color sensor, a microcontroller, a buzzer, and a solar charging module. The color sensor detects changes in the manhole cover's status, and the microcontroller triggers an alarm and uploads the data to the cloud, enabling real-time monitoring and early warning.
Reduce the number of manual inspections, respond quickly to manhole cover anomalies, reduce safety accidents, improve the intelligence of urban management and residents' satisfaction, and promote the development of smart cities.
Smart Images

Figure CN223977610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of intelligent manhole covers, specifically an intelligent manhole cover alarm device. Background Technology
[0002] Manhole covers, an indispensable part of urban infrastructure, are openings in roads, sidewalks, green spaces, and other ground surfaces. They are typically round or square and made of durable materials such as cast iron, steel, composite materials, or concrete to ensure they can withstand traffic loads and pedestrian traffic. The main function of manhole covers is to cover the entrances to underground pipes, cable manholes, drainage systems, and other facilities, protecting them from environmental damage while ensuring the safe passage of pedestrians and vehicles.
[0003] Existing manhole cover designs often lack alarm functions. This means that when a manhole cover is opened or damaged for abnormal reasons, it is often not immediately detected. In such cases, relying on manual inspections by patrol personnel to discover the problem is inefficient.
[0004] Inspection personnel need to conduct patrols according to established routes and schedules. However, the large number and wide distribution of manhole covers make comprehensive and timely inspections extremely difficult. If a manhole cover is opened improperly and is not detected and dealt with in time, it may pose a threat to the safety of pedestrians and vehicles, and may even lead to more serious safety accidents. Utility Model Content
[0005] To achieve the above objectives, this utility model provides the following technical solution: an intelligent manhole cover alarm device, comprising an upper manhole cover, a lower manhole cover, and an alarm structure, wherein the bottom end of the upper manhole cover is rotatably connected to one side of the top end of the lower manhole cover via a rotating shaft, and the alarm structure is installed on the inner wall of the upper manhole cover.
[0006] Preferably, the upper manhole cover includes an upper cover body, a first connector, a hydraulic rod, a second connector, and a solar charging module. The first connector is provided in two sets and is symmetrically fixed on both sides of the inner wall of the upper cover body. The second connector is provided in two sets and is symmetrically fixed on the inner wall of the lower manhole cover body. The hydraulic rod is provided in two sets, and both ends of each set of hydraulic rods are rotatably connected to the corresponding first connector and second connector.
[0007] Preferably, the lower manhole cover includes a lower cover body, a limiting frame, a waterproof shell, and a color calibration plate. The limiting frame is fixedly connected to the bottom end of the lower cover body, the color calibration plate is adhered and fixed to the inner wall of the limiting frame, and the waterproof shell covers the surface of the color calibration plate and is fixed to the inner wall of the limiting frame.
[0008] Preferably, the alarm structure includes a color sensor, a microcontroller, a battery pack, a buzzer, and a protective housing. The color sensor, the microcontroller, the battery pack, and the buzzer are all fixed to the inner wall of the upper cover. The protective housing covers the outside of the microcontroller, the battery pack, and the buzzer and is fixedly connected to the inner wall of the upper cover.
[0009] Preferably, the color sensor, the microcontroller, the battery pack, the buzzer, and the solar charging module are electrically connected to each other.
[0010] Preferably, the color sensor corresponds to the color calibration plate, and the color of the color calibration plate is Pantone 804c fluorescent orange.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model proposes an intelligent manhole cover alarm device. The built-in alarm structure of this intelligent manhole cover can trigger an alarm when the upper cover is opened without authorization, reducing the need for manual inspections. Through real-time monitoring and early warning, it can quickly respond to abnormal situations and reduce safety accidents caused by manhole cover problems. It also enhances residents' well-being by improving their living environment and increasing their satisfaction and trust in urban management through intelligent urban management methods. Furthermore, it promotes the development of smart cities. As an important component of smart cities, the intelligent manhole cover alarm device and monitoring management system will drive the intelligent, refined, and efficient development of urban management. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings:
[0014] Figure 1 This is a schematic diagram of the intelligent manhole cover alarm device of this utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the intelligent manhole cover alarm device of this utility model. Figure 2 ;
[0016] Figure 3 This is a disassembly diagram of the intelligent manhole cover alarm device of this utility model;
[0017] Figure 4 This is a schematic diagram of the intelligent manhole cover alarm device of this utility model. Figure 3 .
[0018] As shown in the figure: 1. Upper manhole cover; 11. Upper cover body; 12. First connector; 13. Hydraulic rod; 14. Second connector; 15. Solar charging module; 2. Lower manhole cover; 21. Lower cover body; 22. Limiting frame; 23. Waterproof shell; 24. Color calibration plate; 3. Alarm structure; 31. Color sensor; 32. Microcontroller; 33. Battery pack; 34. Buzzer; 35. Protective shell. Detailed Implementation
[0019] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0020] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0021] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities connected are not linked by an intermediate structure but are connected as a whole through a transmission structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0023] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0024] Please see Figures 1 to 4 This utility model provides a technical solution: an intelligent manhole cover alarm device, including an upper manhole cover 1, a lower manhole cover 2 and an alarm structure 3. The bottom end of the upper manhole cover 1 is rotatably connected to one side of the top end of the lower manhole cover 2 through a rotating shaft, and the alarm structure 3 is installed on the inner wall of the upper manhole cover 1.
[0025] The built-in alarm structure 3 of this smart manhole cover can trigger an alarm when the upper manhole cover 1 is opened without authorization, reducing the number of manual inspections. Through real-time monitoring and early warning, it can quickly respond to abnormal situations of the manhole cover, reducing safety accidents caused by manhole cover problems. It also enhances residents' sense of well-being by improving their living environment through intelligent urban management methods, increasing residents' satisfaction and trust in urban management. Furthermore, it promotes the development of smart cities; as an important component of smart cities, the smart manhole cover alarm device and monitoring management system will drive the intelligent, refined, and efficient development of urban management.
[0026] The upper manhole cover 1 includes an upper cover body 11, a first connector 12, a hydraulic rod 13, a second connector 14, and a solar charging module 15. The first connector 12 is provided in two sets and is symmetrically fixed on both sides of the inner wall of the upper cover body 11. The second connector 14 is provided in two sets and is symmetrically fixed on the inner wall of the lower manhole cover 2. The hydraulic rod 13 is provided in two sets, and both ends of each set of hydraulic rod 13 are rotatably connected to the corresponding first connector 12 and second connector 14.
[0027] During normal maintenance, the upper cover 11 is lifted up and opened. The hydraulic rod 13 can assist in opening. As the two ends of the hydraulic rod 13 rotate in the first connector 12 and the second connector 14, the upper cover 11 is pushed up and opened.
[0028] The lower manhole cover 2 includes a lower cover body 21, a limiting frame 22, a waterproof shell 23, and a color marking plate 24. The limiting frame 22 is fixedly connected to the bottom of the lower cover body 21, the color marking plate 24 is glued and fixed to the inner wall of the limiting frame 22, and the waterproof shell 23 covers the surface of the color marking plate 24 and is fixed to the inner wall of the limiting frame 22.
[0029] The waterproof housing 23 can protect the color calibration plate 24, preventing it from fading after long-term use and improving its overall service life.
[0030] The alarm structure 3 includes a color sensor 31, a microcontroller 32, a battery pack 33, a buzzer 34, and a protective housing 35. The color sensor 31, microcontroller 32, battery pack 33, and buzzer 34 are all fixed to the inner wall of the upper cover 11. The protective housing 35 covers the outside of the microcontroller 32, battery pack 33, and buzzer 34 and is fixedly connected to the inner wall of the upper cover 11.
[0031] The color sensor 31, microcontroller 32, battery pack 33, buzzer 34 and solar charging module 15 are electrically connected to each other.
[0032] Color sensor 31 corresponds to color calibration plate 24, and the color of color calibration plate 24 is Pantone 804c fluorescent orange.
[0033] During normal use, the upper manhole cover 1 is in a closed state. The battery pack 33 supplies power to the color sensor 31, microcontroller 32 and buzzer 34. The color sensor 31 continuously detects the color value of the area of the color calibration plate 24 at a frequency of 5Hz. When an abnormal opening occurs, the microcontroller 32 is programmed to trigger an anomaly when the hue shift of the color sensor 31 is greater than 15% or the brightness change is greater than 300%. When the anomaly is detected for 500ms, the buzzer 34 will be triggered to sound an alarm. At the same time, the built-in SIM800L GSM module will upload to the cloud via the MQTT protocol, and the GSM will send an alarm SMS.
[0034] The color sensor 31 is equipped with an infrared filter to eliminate ambient light interference, and the distance between the color sensor 31 and the color calibration plate 24 is maintained at 50±5mm.
[0035] During periods of continuous rain, the battery pack 33 provides power, while on sunny days, the solar charging module 15 replenishes the battery pack 33 to ensure the continuous operation of the entire device.
[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An intelligent manhole cover alarm apparatus, characterized by: The utility model provides a kind of manhole cover, including upper layer manhole cover (1), lower layer manhole cover (2) and alarm structure (3), the bottom end of the upper layer manhole cover (1) is rotatably connected on the top end one side of the lower layer manhole cover (2) by rotating shaft, the alarm structure (3) is installed in the inner wall of the upper layer manhole cover (1).
2. The intelligent well lid alarm device according to claim 1, characterized in that: The upper layer manhole cover (1) includes upper layer cover body (11), first connecting piece (12), hydraulic rod (13), second connecting piece (14) and solar charging module (15), the first connecting piece (12) is provided with two groups and is symmetrically fixed in the inner wall both sides of the upper layer cover body (11), the second connecting piece (14) is provided with two groups and is symmetrically fixed in the inner wall of the lower layer manhole cover (2), the hydraulic rod (13) is provided with two groups, and the both ends of each group of the hydraulic rod (13) are rotatably connected with corresponding first connecting piece (12) and second connecting piece (14).
3. The intelligent well lid alarm device according to claim 2, characterized in that: The lower layer manhole cover (2) includes lower layer cover body (21), limiting frame (22), waterproof shell (23) and color calibration board (24), the limiting frame (22) is fixedly connected at the bottom end of the lower layer cover body (21), the color calibration board (24) is fixedly attached to the inner wall of the limiting frame (22), and the waterproof shell (23) covers the surface of the color calibration board (24) and is fixed to the inner wall of the limiting frame (22).
4. The intelligent well lid alarm device according to claim 3, characterized in that: The alarm structure (3) includes color sensor (31), microcontroller (32), battery pack (33), buzzer (34) and protective shell (35), the color sensor (31), the microcontroller (32), the battery pack (33) and the buzzer (34) are all fixed in the inner wall of the upper layer cover body (11), and the protective shell (35) covers the outside of the microcontroller (32), the battery pack (33) and the buzzer (34) and is fixedly connected with the inner wall of the upper layer cover body (11).
5. The intelligent well lid alarm device according to claim 4, characterized in that: The color sensor (31), the microcontroller (32), the battery pack (33) the buzzer (34) and the solar charging module (15) are electrically connected with each other.
6. The intelligent well lid alarm device according to claim 5, characterized in that: The color sensor (31) and the color calibration board (24) correspond to each other, and the color calibration board (24) is Pantone 804c fluorescent orange in color.