A smart manhole cover that prevents sinking
Patent Information
- Application Number
- CN202522252032.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-24
AI Technical Summary
当前市场上的井盖产品存在两大主要问题:一是传统井盖多采用单一支撑结构,在长期车辆碾压等瞬时载荷作用下,支撑结构易疲劳损坏,导致井盖下陷,影响道路通行安全,难以在下陷趋势初期及时干预,存在安全隐患
Smart Images

Figure CN224705184U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole cover equipment technology, and in particular to an anti-sinking smart manhole cover. Background Technology
[0002] Smart manhole covers, as an important component of smart city infrastructure, are widely used in urban drainage systems, power facilities, and communication fiber optic cable wells. They primarily cover manhole openings to ensure the safety of pedestrians and vehicles, while also enabling monitoring of the manhole's condition. Currently, manhole cover products on the market suffer from two main problems: First, traditional manhole covers often use a single support structure, which is prone to fatigue damage under the constant pressure of vehicles, leading to manhole cover subsidence and affecting road safety. Furthermore, it is difficult to intervene in the early stages of subsidence, posing a safety hazard. Therefore, we have proposed an anti-subsidence smart manhole cover. Summary of the Invention
[0003] To address the aforementioned problems, this utility model provides an anti-sinking smart manhole cover. This utility model solves the problems mentioned in the background section.
[0004] This utility model provides the following technical solution: an anti-sinking smart manhole cover, comprising a manhole cover body, the manhole cover body being fixedly installed in a reinforcing seat, the reinforcing seat being installed in a positioning groove of a manhole frame, a channel being opened in the middle of the manhole frame, a support mechanism being provided at the bottom of the manhole cover body, the support mechanism comprising upper and lower distributed support plates, the support plates being connected by a damping rod, a support spring being sleeved on the damping rod, a support groove being opened in the reinforcing seat to cooperate with the support mechanism, a positioning block being installed at the bottom of the manhole cover body, an angle sensor being installed on the positioning block, a base being provided in the middle of the channel, the edge of the base being connected to the manhole frame by a reinforcing rod, the positioning block being connected to the base by a telescopic guide rod and a sleeve, a strong spring being sleeved on the telescopic guide rod.
[0005] In the above scheme, the edge of the reinforcing seat is connected to the well frame through multiple connectors, and the connectors include interlocking elastic latches and locking tongues.
[0006] In the above scheme, the support mechanism is provided in one set.
[0007] In the above scheme, the tilt sensor is electrically connected to the controller.
[0008] In the above scheme, the reinforcing rod has a connecting hole and is fixedly connected to the well frame by connecting bolts.
[0009] In the above scheme, one end of the telescopic guide rod is movably inserted into the sleeve, and the other end of the sleeve is hinged to the base through a hinge pin.
[0010] In the above scheme, multiple strip-shaped grooves are equally spaced on the top of the manhole cover body.
[0011] The advantages and beneficial effects of this utility model are as follows: This utility model provides an anti-sinking intelligent manhole cover. By strengthening the fit between the seat and the manhole frame positioning groove, and by using an elastic buckle and a locking tongue to engage, it achieves precise positioning and stable connection between the manhole cover body and the manhole frame, solving the problem of uneven force caused by the misalignment of traditional manhole covers and improving the overall structural stability. Through the combination of the support plate, damping rod and support spring in the support mechanism, a multi-level buffer system is formed, which can effectively absorb the instantaneous load generated by vehicle rolling, avoid direct deformation of the manhole cover body, and solve the sinking problem caused by long-term load. Through the movable insertion and hinge design of the telescopic guide rod and the sleeve, it can not only adapt to the small displacement of the manhole cover body, but also provide vertical support force. Combined with a strong spring, it further enhances the buffering effect and solves the problem of easy breakage of rigid connections. Attached Figure Description
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] Figure 1 This is a schematic diagram of the internal structure of this utility model; Figure 2 This is a schematic diagram of the upper structure of the manhole cover body of this utility model; Figure 3 This is a schematic diagram of the support mechanism structure of this utility model.
[0014] In the diagram: 1. Manhole cover body; 11. Reinforcing seat; 12. Manhole frame; 13. Positioning groove; 14. Elastic lock; 15. Locking tongue; 16. Channel; 17. Support mechanism; 171. Support plate; 172. Damping rod; 173. Support spring; 18. Support groove; 19. Positioning block; 2. Tilt sensor; 21. Telescopic guide rod; 22. Sleeve; 23. Base; 24. Strong spring; 25. Reinforcing rod; 26. Connecting bolt. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0016] like Figure 1-3As shown, this utility model is an anti-sinking smart manhole cover, including a manhole cover body 1, which is fixedly installed in a reinforcing seat 11. The reinforcing seat 11 is installed in a positioning groove 13 of a manhole frame 12. A channel 16 is opened in the middle of the manhole frame 12. A support mechanism 17 is provided at the bottom of the manhole cover body 1. The support mechanism 17 includes support plates 171 distributed vertically. The support plates 171 are connected by a damping rod 172. A support spring 173 is sleeved on the damping rod 172. A support groove 18 that cooperates with the support mechanism 17 is opened in the reinforcing seat 11. A positioning block 19 is installed at the bottom of the manhole cover body 1. An angle sensor 2 is installed on the positioning block 19. A base 23 is provided in the middle of the channel 16. The edge of the base 23 is connected to the manhole frame 12 by a reinforcing rod 25. The positioning block 19 is connected to the base 23 by a telescopic guide rod 21 and a sleeve 22. A strong spring 24 is sleeved on the telescopic guide rod 21.
[0017] The cooperation between the reinforcing seat 11 and the positioning groove 13 ensures the accurate installation position of the manhole cover body 1 and avoids displacement; the support mechanism 17 absorbs the load through the elastic deformation of the damping rod 172 and the support spring 173, and the support groove 18 provides installation space for the support mechanism 17 and limits displacement; the combination of the telescopic guide rod 21 and the sleeve 22 realizes adjustable support, the strong spring 24 assists in buffering, and the base 23 is connected to the manhole frame 12 through the reinforcing rod 25 to form a stable bottom support system.
[0018] In the above solution, the edge of the reinforcing seat 11 is connected to the manhole frame 12 through multiple connectors, including interlocking elastic latches 14 and locking tongues 15. The interlocking structure of multiple elastic latches 14 and locking tongues 15 enables quick assembly and disassembly of the reinforcing seat 11 and the manhole frame 12, while ensuring connection strength, preventing lateral displacement of the manhole cover body 1 under stress, and improving installation stability.
[0019] In the above scheme, the support mechanism 17 is provided in 3-4 sets. The 3-4 sets of support mechanisms 17 are evenly distributed along the bottom of the manhole cover body 1, so that the load is distributed to multiple support points, avoiding structural damage caused by local stress concentration, further optimizing the anti-sinking effect, and suitable for the load-bearing requirements of manhole covers of different sizes.
[0020] In the above scheme, the tilt sensor 2 is electrically connected to the controller. The tilt sensor 2 collects the tilt data of the manhole cover body 1 in real time. When the tilt angle exceeds a preset threshold, the controller can transmit an early warning signal to the monitoring platform through the communication module, realizing remote real-time monitoring and improving the safety response speed.
[0021] In the above scheme, the reinforcing rod 25 has a connecting hole, and it is fixedly connected to the well frame 12 by a connecting bolt 26. The connecting bolt 26 passes through the connecting hole of the reinforcing rod 25 and is threadedly connected to the well frame 12, forming a detachable and stable structure, which facilitates later maintenance and replacement, while enhancing the connection strength between the base 23 and the well frame 12 and ensuring the stability of the support mechanism.
[0022] In the above scheme, one end of the telescopic guide rod 21 is movably inserted into the sleeve 22, and the other end of the sleeve 22 is hinged to the base 23 via a hinge pin. The movable insertion of the telescopic guide rod 21 and the sleeve 22 allows them to slide relative to each other. Combined with the hinged design of the sleeve 22 and the base 23, the support structure can adapt to the small angle changes of the manhole cover body 1 caused by load, avoiding the rigid connection from breaking during displacement.
[0023] In the above solution, multiple strip-shaped grooves are evenly spaced on the top of the manhole cover body 1. The strip-shaped grooves not only increase the surface friction of the manhole cover and play an anti-slip role, but also allow rainwater to drain quickly in rainy weather, preventing rainwater from accumulating on the surface of the manhole cover and affecting traffic safety, while also reducing the overall weight of the manhole cover.
[0024] Working principle: This type of anti-sinking smart manhole cover has the cover body 1 fixedly installed inside the reinforcing seat 11, so that the reinforcing seat 11 is embedded in the positioning groove 13 of the manhole frame 12 and fixed by the elastic buckle 14 and the locking tongue 15; the base 23 is connected to the manhole frame 12 by the reinforcing rod 25 and the connecting bolt 26, and the positioning block 19 is connected to the base 23 by the telescopic guide rod 21 and the sleeve 22, completing the overall structural assembly; when a vehicle runs over the manhole cover body 1, the load is transmitted to the reinforcing seat 11 and the support mechanism 17 in sequence; the support spring 173 in the support mechanism 17 first undergoes elastic deformation to absorb part of the load, and the damping rod 172 slows down the deformation speed of the spring to avoid excessive instantaneous impact; at the same time, the telescopic guide rod 21 slides in the sleeve 22 The manhole cover body 1 is protected by a strong spring 24, which helps to disperse the vertical pressure and prevent the manhole cover body 1 from sinking. If the manhole cover body 1 tilts slightly due to ground subsidence or load, the hinge structure between the sleeve 22 and the base 23 allows the telescopic guide rod 21 to adjust its angle, ensuring continuous support. The cooperation between the reinforcing seat 11 and the positioning groove 13 restricts lateral displacement, and the elastic latch 14 and the locking tongue 15 maintain a stable connection to prevent the manhole cover from shifting. The tilt sensor 2 monitors the tilt angle of the manhole cover body 1 in real time and transmits the data to the controller. When the tilt angle exceeds the preset value, the controller triggers an early warning mechanism and sends the warning information to the monitoring center through the communication module. Staff arrive at the scene in time to carry out maintenance and prevent sinking accidents.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A smart manhole cover designed to prevent sinking, comprising a manhole cover body (1), characterized in that: The manhole cover body (1) is fixedly installed in the reinforcing seat (11), the reinforcing seat (11) is installed in the positioning groove (13) of the manhole frame (12), the manhole frame (12) has a channel (16) in the middle, and the bottom of the manhole cover body (1) is provided with a support mechanism (17). The support mechanism (17) includes support plates (171) distributed vertically. The support plates (171) are connected by damping rods (172). A support spring (173) is sleeved on the damping rods (172). The reinforcing seat (11) The well cover body (1) has a support groove (18) that cooperates with the support mechanism (17). A positioning block (19) is installed at the bottom of the well cover body (1). An angle sensor (2) is installed on the positioning block (19). A base (23) is provided in the middle of the channel (16). The edge of the base (23) is connected to the well frame (12) through a reinforcing rod (25). The positioning block (19) is connected to the base (23) through a telescopic guide rod (21) and a sleeve (22). A strong spring (24) is sleeved on the telescopic guide rod (21).
2. The anti-sinking smart manhole cover according to claim 1, characterized in that, The edge of the reinforcing seat (11) is connected to the well frame (12) by a plurality of connectors, the connectors including interlocking elastic latches (14) and locking tongues (15).
3. The anti-sinking smart manhole cover according to claim 1, characterized in that, The support mechanism (17) is provided in 3-4 sets.
4. The anti-sinking smart manhole cover according to claim 1, characterized in that, The tilt sensor (2) is electrically connected to the controller.
5. The anti-sinking smart manhole cover according to claim 1, characterized in that, The reinforcing rod (25) has a connecting hole and is fixedly connected to the well frame (12) by a connecting bolt (26).
6. The anti-sinking smart manhole cover according to claim 1, characterized in that, One end of the telescopic guide rod (21) is movably inserted into the sleeve (22), and the other end of the sleeve (22) is hinged to the base (23) through a hinge shaft.
7. The anti-sinking smart manhole cover according to claim 1, characterized in that, Multiple strip-shaped grooves are equally spaced on the top of the manhole cover body (1).