Anti-theft inspection well cover with self-adjusting function
By using a self-adjusting manhole cover, which utilizes a water tank and buoyancy to adjust the drainage holes, the problem of small drainage capacity and easy theft of traditional manhole covers is solved, achieving the effects of rapid drainage and anti-theft warning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陆天乐
- Filing Date
- 2025-03-14
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional manhole covers have limited drainage capacity and slow drainage speed, making them prone to water accumulation and theft, posing safety hazards.
Design a self-adjusting manhole cover, comprising a water tank, a cover body, a mounting bracket, and a sliding plate. The drain hole and the height of the cover body are adjusted by buoyancy to automatically adjust the drainage volume. It is also equipped with sensors and warning light strips to enhance the anti-theft effect.
It enables automatic adjustment of drainage volume under different rainfall levels, quickly removes rainwater from the road surface, enhances anti-theft capabilities, and alerts pedestrians and vehicles to pay attention to safety through early warning.
Smart Images
Figure CN224186898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of municipal engineering, and in particular to an anti-theft manhole cover with self-adjusting function. Background Technology
[0002] Manhole covers are protective structures used to cover roads. They are usually placed in the middle or on the side of the road to prevent people or objects from falling in, and also to drain water during rainy weather.
[0003] In the existing technology, in order to ensure the safety of pedestrians and vehicles, traditional manhole covers are only equipped with some small drainage holes. However, the drainage capacity is limited and the drainage speed is slow, which can easily cause water accumulation on the road. In addition, traditional manhole covers are usually simply installed on the manhole opening, which can easily lead to the loss or theft of the manhole cover. This not only causes economic losses but also poses great safety hazards, which urgently need to be solved. Utility Model Content
[0004] To address the shortcomings of the existing technology, this application provides a self-adjusting anti-theft manhole cover, which aims to automatically float up during heavy rainfall to increase drainage while simultaneously issuing a warning, thereby improving road safety for vehicles and pedestrians and enhancing anti-theft effectiveness.
[0005] The above-mentioned inventive objective of this application is achieved through the following technical solutions:
[0006] A water storage tank has an opening at the top and a vertical mounting protrusion at the bottom inside the tank. The mounting protrusion has a first drain hole, and a water storage cavity is formed between the water storage tank and the mounting protrusion. A second drain hole is provided at the bottom inside the tank away from the mounting protrusion.
[0007] In addition, a cover for sealing the water storage tank is provided with a plurality of sliding plates along its circumference at the bottom of the cover. Each sliding plate is slidably disposed between the water storage tank and the mounting protrusion. A water inlet channel is formed between two adjacent sliding plates, which is connected to the water storage cavity. A water inlet is provided on the cover corresponding to each water inlet channel. The water inlet channel is connected to the water inlet and to the first drain hole.
[0008] By adopting the above technical solution, when the rainfall is small, that is, when the water inlet of the water storage chamber is less than the drainage of the second drainage hole, the water storage chamber does not store water, and the rainwater outside the cover can be drained sequentially through the inlet, the water inlet channel, the water storage chamber, and the second drainage hole. When the rainfall is large, that is, when the water inlet of the water storage chamber is greater than the drainage of the second drainage hole, the water storage chamber stores water. At this time, the rainwater outside the cover can be drained through the second drainage hole and also through the first drainage hole. Furthermore, as the water level in the water storage chamber rises, the sliding plate, under the action of buoyancy, causes the cover to gradually float upward, thereby gradually increasing the diameter of the water inlet channel, increasing the water inlet capacity of the water inlet channel and the drainage capacity of the water storage chamber, so that the rainwater on the road surface can be quickly discharged into the sewer through the first and second drainage holes, thus realizing the self-regulating function of the manhole cover drainage.
[0009] In a preferred embodiment, this application can be further configured such that: a limiting ring extends along its circumference inside the water tank, a limiting plate extends from the bottom of the sliding plate, the limiting ring is located above the limiting plate and is used to abut against the limiting plate, and when the cover closes the water tank, the cover abuts against the limiting ring.
[0010] By adopting the above technical solution, when the water level in the water storage chamber rises, the limiting ring and the limiting plate abut against each other, which can limit the maximum height of the cover to prevent the cover from falling off the water storage tank and also play an anti-theft role. In addition, the limiting ring can provide a position for the cover to be installed when the rainfall is small. The structure is simple and practical.
[0011] In a preferred embodiment, this application can be further configured such that: the cover is fitted with a warning light strip, and a sensor and a controller are installed inside the water storage tank; both the warning light strip and the sensor are controlled and connected to the controller; and the sensor is used to detect the water level in the water storage chamber.
[0012] By adopting the above technical solution, when the rainfall is heavy and the cover floats, the sensor detects that the water level in the water storage chamber has reached a specified value, sends a signal to the controller, and the controller sends a start signal to the warning light strip, causing the warning light strip to flash to remind pedestrians and vehicles that a large-volume drainage operation is underway and to pay attention to traffic safety.
[0013] In a preferred embodiment, the application may be further configured such that the warning light strip is a solar-powered LED light.
[0014] By adopting the above technical solution and using solar-powered LED lights, the warning light strips do not require an external power source, reducing reliance on traditional energy sources and minimizing maintenance time. This approach is energy-saving, environmentally friendly, and highly adaptable, making it suitable for municipal engineering projects.
[0015] In a preferred embodiment, this application may be further configured such that: there are multiple second drain holes, and the multiple second drain holes are evenly arranged along the perimeter of the water storage tank.
[0016] By adopting the above technical solution and evenly setting multiple second drainage holes, the drainage capacity of the manhole cover can be increased while ensuring pedestrian safety, making drainage smoother.
[0017] In summary, this application includes at least one of the following beneficial technical effects:
[0018] 1. This manhole cover can automatically adjust its drainage function according to the amount of rainfall. When the rainfall is small, the manhole cover drains water at a low flow rate through the water inlet and the second drainage hole of the cover body. When the rainfall is large, the cover body can automatically float up and drain water through the first drainage hole and the second drainage hole, activating the high flow drainage mode to increase the drainage volume and quickly drain the rainwater from the road surface.
[0019] 2. By setting limit rings and limit plates, the cover and the water tank can be nested together, which can enhance the anti-theft effect and avoid safety accidents caused by the manhole cover falling off.
[0020] 3. Flashing warning lights will alert pedestrians and vehicles to the large-scale drainage work underway and to exercise caution when passing through the area. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an anti-theft manhole cover with self-adjusting function in one embodiment of this application;
[0022] Figure 2 This is a schematic diagram of the assembly relationship between the cover and the water tank in one embodiment of this application;
[0023] Figure 3 This is a cross-sectional structural diagram of an anti-theft manhole cover with self-adjusting function according to one embodiment of this application.
[0024] Reference numerals in the attached drawings: 1. Water storage tank; 2. Cover; 3. Mounting protrusion; 4. First drain hole; 5. Water storage cavity; 6. Second drain hole; 7. Sliding plate; 8. Water inlet channel; 9. Water inlet; 10. Limiting ring; 11. Limiting plate; 12. Warning light strip. Detailed Implementation
[0025] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.
[0026] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.
[0027] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.
[0028] The following description, with reference to the accompanying drawings, describes an anti-theft manhole cover with a self-adjusting function.
[0029] Reference Figure 1 , Figure 2 and Figure 3The anti-theft manhole cover with self-adjusting function includes a water storage tank 1 with an open top and a cover 2 for sealing the water storage tank 1. A mounting protrusion 3 is vertically installed at the bottom of the water storage tank 1. The water storage tank 1, cover 2, and mounting protrusion 3 are all cylindrical to accommodate the shapes of most manhole covers on the market. The mounting protrusion 3 has a first drainage hole 4. A water storage cavity 5 is formed between the water storage tank 1 and the mounting protrusion 3. A second drainage hole 6 is located at the bottom of the water storage tank 1, away from the mounting protrusion 3. Multiple second drain holes 6 are provided, and these holes are evenly arranged along the circumference of the water storage tank 1 to facilitate smoother drainage. Several sliding plates 7 are provided at the bottom of the cover 2 along its own circumference. Each sliding plate 7 is slidably positioned between the water storage tank 1 and the mounting protrusion 3. A water inlet channel 8 is formed between two adjacent sliding plates 7, connecting to the water storage cavity 5. A water inlet 9 is provided on the cover 2 corresponding to each water inlet channel 8, and the water inlet channel 8 connects to the water inlet 9. When the rainfall is small (i.e., the inflow of water into the water storage chamber 5 is less than the outflow of water from the second drainage hole 6), the water storage chamber 5 does not store water. Rainwater outside the cover 2 can drain through the inlet 9, the inlet channel 8, the water storage chamber 5, and the second drainage hole 6 in sequence. When the rainfall is large (i.e., the inflow of water into the water storage chamber 5 is greater than the outflow of water from the second drainage hole 6), the water storage chamber 5 stores water. At this time, rainwater outside the cover 2 can drain through the second drainage hole 6 and the first drainage hole 6. Hole 4 drains water, and as the water level in the water storage chamber 5 rises, the sliding plate 7, under the action of buoyancy, causes the cover 2 to gradually float upward, thereby gradually exposing the outer end of the water inlet channel 8 and expanding its effective water inlet opening area, reducing water inlet resistance, and allowing multiple water inlet channels 8 to participate in water intake at the same time, so as to increase the overall water intake and drainage volume of the water storage chamber 5, and allow rainwater on the road surface to be quickly discharged into the sewer through the first drainage hole 4 and the second drainage hole 6, thereby realizing the self-regulating function of the manhole cover drainage.
[0030] It should be noted that the size of the first drain hole 4 is usually larger than that of the second drain hole 6, so that when the rainfall is heavy, multiple water inlet channels 8 can simultaneously drain water into the first drain hole 4.
[0031] Furthermore, such as Figure 2 and Figure 3 As shown, a limiting ring 10 extends along its circumference inside the water tank 1, and a limiting plate 11 extends from the bottom of the sliding plate 7. The limiting ring 10 is located above the limiting plate 11 and is used to abut against the limiting plate 11. When the cover 2 closes the water tank 1, the cover 2 abuts against the limiting ring 10. When the water level in the water storage chamber 5 rises, the limiting ring 10 and the limiting plate 11 abut against each other, which can limit the maximum height of the cover 2 to prevent the cover 2 from falling off the water tank 1. It also serves as an anti-theft measure. In addition, the limiting ring 10 can provide a position for the cover 2 to be installed and abutted when the rainfall is small. The structure is simple and practical.
[0032] To warn pedestrians and vehicles during periods of heavy rainfall, such as Figure 2 As shown, the cover 2 is equipped with a warning light strip 12. The water tank 1 is equipped with a sensor (not shown in the figure) and a controller (not shown in the figure). The warning light strip 12 and the sensor are both connected to the controller. The sensor is used to detect the water level in the water storage chamber 5. When the rainfall is heavy and the cover 2 floats, the sensor detects that the water level in the water storage chamber 5 has reached a specified value and sends a signal to the controller, which then sends a start signal to the warning light strip 12, causing the warning light strip 12 to flash to remind pedestrians and vehicles that a large-volume drainage operation is underway and to pay attention to traffic safety.
[0033] It should be noted that the principle of the sensor used to monitor water level is common knowledge to those skilled in the art, and will not be elaborated here.
[0034] In this embodiment, the warning light strip 12 is a solar-powered LED light. By using a solar-powered LED light, the warning light strip 12 does not require an external power source, reducing dependence on traditional energy sources and reducing the time required for personnel maintenance. It has the advantages of energy saving, environmental protection, and strong adaptability, and is suitable for municipal engineering conditions.
[0035] The implementation principle of a self-adjusting anti-theft manhole cover according to this application embodiment is as follows: When the manhole cover is draining at a low flow rate, the water storage chamber 5 does not store water, the cover 2 does not float, and rainwater is discharged from the second drainage hole 6. When the manhole cover is draining at a high flow rate, in addition to the second drainage hole 6 draining water, the water storage chamber 5 stores water, the cover 2 floats, and the warning light strip 12 flashes to remind pedestrians and vehicles that a high flow rate of drainage is taking place here and to pay attention to pedestrian safety. Rainwater on the road surface is quickly discharged to the first drainage hole 4 through the water inlet channel 8 to complete the high flow rate drainage, thereby realizing the self-adjusting function of the manhole cover drainage. Furthermore, by setting the limiting ring 10 and the limiting plate 11, the cover 2 and the water storage tank 1 are nested together, which can enhance the anti-theft effect and avoid safety accidents caused by the manhole cover detaching.
[0036] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A self-adjusting anti-theft manhole cover, characterized in that, include: A water storage tank (1) has an opening at the top and a mounting protrusion (3) vertically arranged at the bottom inside the water storage tank (1). The mounting protrusion (3) has a first drain hole (4). A water storage cavity (5) is formed between the water storage tank (1) and the mounting protrusion (3). A second drain hole (6) is provided at the bottom inside the water storage tank (1) away from the mounting protrusion (3). And, a cover (2) for sealing the water storage tank (1), the bottom of the cover (2) is provided with a plurality of sliding plates (7) along its own circumference, each of the sliding plates (7) is slidably disposed between the water storage tank (1) and the mounting protrusion (3), and a water inlet channel (8) is formed between two adjacent sliding plates (7) and connected to the water storage cavity (5), and the cover (2) is provided with a water inlet (9) corresponding to the position of each water inlet channel (8), the water inlet channel (8) is connected to the water inlet (9) and connected to the first drain hole (4).
2. The anti-theft manhole cover with self-adjusting function as described in claim 1, characterized in that, The water tank (1) has a limiting ring (10) extending along its circumference inside. The sliding plate (7) has a limiting plate (11) extending from its bottom. The limiting ring (10) is located above the limiting plate (11) and is used to abut against the limiting plate (11). When the cover (2) closes the water tank (1), the cover (2) abuts against the limiting ring (10).
3. The anti-theft manhole cover with self-adjusting function as described in claim 1, characterized in that, The cover (2) is fitted with a warning light strip (12), and the water storage tank (1) is equipped with a sensor and a controller. The warning light strip (12) and the sensor are both connected to the controller. The sensor is used to detect the water level in the water storage cavity (5).
4. A self-adjusting anti-theft manhole cover as described in claim 3, characterized in that, The warning light strip (12) is a solar-powered LED light.
5. A self-adjusting anti-theft manhole cover as described in claim 1, characterized in that, There are multiple second drain holes (6), and the multiple second drain holes (6) are evenly arranged along the circumference of the water storage tank (1).