Municipal intelligent safety well lid

Abstract

The utility model relates to the technical field of municipal facilities, in particular to a municipal intelligent safety well lid which comprises a well seat, an outer cover plate, an inner cover plate and a monitoring terminal. The well seat comprises a cylinder and a base and is mounted at a well mouth, and the upper portion of the well seat is flush with the road surface. The outer cover plate is annular, a hinge joint is arranged on the outer edge of the outer cover plate, a supporting ring is arranged on the lower portion of the outer cover plate, a supporting seat is connected to the bottom of the supporting ring and located under the inner cover plate, a movable ring is connected to the supporting seat through a spring, and a core column is arranged in the center of the supporting seat. A plurality of clamping blocks are arranged on the outer side of the lower support of the inner cover plate, and the clamping blocks can penetrate through the notches of the supporting ring of the outer cover plate and are clamped in the supporting ring after rotating. The monitoring terminal comprises a capacitive sensor, a liquid level sensor, a lithium battery, a wireless transceiver module and a control module. According to the utility model, a drainage mode is set, and pavement accumulated water and underground water level can be detected, so that workers can be timely reminded to check, maintain and repair.

Description

Technical Field

[0001] This utility model belongs to the field of municipal facilities technology, specifically relating to a municipal intelligent safety manhole cover. Background Technology

[0002] Manhole covers are an important component of municipal infrastructure, preventing debris such as mud and garbage from falling into underground pipe systems, avoiding blockages, and ensuring the normal operation of underground facilities such as drainage, water supply, communications, and electricity. They also cover manhole openings to prevent pedestrians or vehicles from falling in, especially at night or in flooded conditions. Manhole covers installed at drainage outlets have water inlets to divert water from the road surface into the sewer system, mitigating urban flooding problems.

[0003] Urban roads, primarily paved, reduce the chances of natural rainwater infiltration and exacerbate surface runoff. Urban construction encroaches on natural water storage space, reducing the city's rainwater retention capacity. Garbage, fallen leaves, or silt clog drainage pipes, leading to poor drainage. Flooded roads can cause vehicles to skid, overturn, or stall, increasing the risk of traffic accidents. Especially at high speeds or when turning, flooded roads significantly reduce vehicle traction. Pedestrians wading through floodwaters may slip and fall, or even suffer electric shocks. Underneath manhole covers, drainage and sewage systems can experience a rapid rise in water levels during heavy rains or when pipes are blocked, potentially leading to overflows.

[0004] Existing manhole covers have a simple structure, only functioning to cover and open. When cities are flooded due to heavy rain, it is necessary to inspect the roads and manhole covers one by one, which is labor-intensive. Some blocked manhole covers, when opened due to the impact of overflowing water or for quick drainage, will leave the manhole opening exposed if not closed in time. Especially in low light or when covered by rain, this can easily cause pedestrians to fall in, potentially causing serious injury. If a vehicle gets stuck in or runs over an open manhole, it may cause tire blowouts, chassis damage, or even traffic accidents. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the problem to be solved by this utility model is that after heavy rain, the existing manhole covers need to be checked one by one to check the water accumulation, which consumes a lot of manpower and the water accumulation is not timely enough; at the same time, some blocked manhole covers can easily endanger the safety of pedestrians and vehicles when they are impacted by overflowing water or opened for quick drainage.

[0006] This utility model adopts the following technical solution: a municipal intelligent safety manhole cover, including a manhole base, an outer cover plate, an inner cover plate, and a monitoring terminal.

[0007] The manhole base includes a cylindrical body and a base, installed at the manhole opening, with its upper part flush with the road surface. The manhole base is equipped with movable buckles that can be inserted into slots in the outer cover plate to restrict the opening of the outer cover plate. The manhole base also features a hinged seat.

[0008] The outer cover plate is annular, with a hinge joint on its outer edge. The hinge joint is connected to the hinge seat of the well base via a pin. Drainage holes are provided on the outer cover plate. A support ring, also annular, is located at the bottom of the outer cover plate and has a notch. A support base is connected to the bottom of the support ring, positioned directly below the inner cover plate. A movable ring is connected to the support base via a spring, and a core column is located at the center of the support base.

[0009] The inner cover plate is disc-shaped and fits into the outer cover plate. A lower support is provided at the bottom of the inner cover plate. The lower support is annular, and multiple locking blocks are provided on its outer side. These locking blocks can pass through notches in the support ring of the outer cover plate and, after rotation, lock into the support ring. The disc of the inner cover plate fits against the movable ring of the outer cover plate. When the locking blocks are not engaged with the support ring, the movable ring lifts the inner cover plate. The lower support of the inner cover plate is supported on a support base.

[0010] The monitoring terminal includes a capacitive sensor, a liquid level sensor, a lithium battery, a wireless transceiver module, and a control module. The monitoring terminal has an openable closed interface and is detachably installed under an outer cover plate. The outer cover plate has a through hole, and the capacitive sensor is installed in the through hole with its upper part flush with the upper surface of the outer cover plate. The liquid level sensor is suspended inside the wellhead. The control module is connected to the capacitive sensor, the liquid level sensor, and the wireless transceiver module for data uploading. The lithium battery provides power.

[0011] According to another embodiment of the utility model or any of the foregoing embodiments, a manhole cover wherein a plurality of reinforcing ribs are circumferentially arranged between the cylinder body and the base of the manhole cover.

[0012] According to another embodiment of the utility model or any of the foregoing embodiments, the inner cover plate is provided with two auxiliary countersinking holes, into which a finger or tool can be inserted to drive the rotation of the inner cover plate.

[0013] According to another embodiment of the utility model or any of the foregoing embodiments, the manhole cover has a hollow structure for the support ring and the lower bracket, which reduces weight and saves materials.

[0014] According to another embodiment of the utility model or any of the foregoing embodiments, the manhole cover includes a central disc and a connecting rod connecting the disc and the support ring.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses a municipal intelligent safety manhole cover. In addition to the traditional open and closed states, it features a drainage mode. By rotating the inner cover, it pops out, allowing rainwater to flow into the ground through larger holes beneath the inner cover. This rapid drainage eliminates the need to forcefully open the entire manhole cover. After drainage, it can be reset to its original position, preventing the cover from being washed away and avoiding various accidents. This utility model also incorporates a capacitive sensor and a liquid level sensor to detect surface water and manhole water levels, promptly alerting staff for inspection, maintenance, and repair, thus improving the maintenance efficiency of municipal facilities. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the municipal intelligent safety manhole cover described in this utility model during daily operation;

[0018] Figure 2 This is a top view of the municipal intelligent safety manhole cover described in this utility model during daily operation.

[0019] Figure 3 This is a three-dimensional diagram of the municipal intelligent safety manhole cover in drainage mode as described in this utility model. Figure 1 ;

[0020] Figure 4 This is a side view of the municipal intelligent safety manhole cover in drainage mode as described in this utility model;

[0021] Figure 5 This is a three-dimensional diagram of the municipal intelligent safety manhole cover in drainage mode as described in this utility model. Figure 2 ;

[0022] Figure 6 This is a three-dimensional schematic diagram of the municipal intelligent safety manhole cover maintenance mode as described in this utility model.

[0023] Figure 7 This is a three-dimensional schematic diagram of the inner cover plate described in this utility model;

[0024] Figure 8 This is an exploded view of the assembly of the inner cover plate and the outer cover plate described in this utility model;

[0025] In the diagram, 100 is the well base; 101 is the snap fastener; 102 is the reinforcing rib; and 103 is the hinged seat.

[0026] 200. Outer cover plate; 201. Drain hole; 202. Support ring; 203. Support base; 204. Movable ring; 205. Spring; 206. Core column; 207. Hinge joint; 208. Slot;

[0027] 300. Inner cover plate; 301. Locking block; 302. Lower bracket; 303. Column; 304. Auxiliary countersunk hole;

[0028] 400. Monitoring terminal; 401. Capacitive sensor; 402. Liquid level sensor. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1 , 6 As shown, a municipal intelligent safety manhole cover includes a manhole base 100, an outer cover plate 200, an inner cover plate 300, and a monitoring terminal 400.

[0031] like Figure 2 , 4 As shown in Figure 5, the manhole base 100 includes a cylindrical body and a base, and is installed at the manhole opening. Its upper part is flush with the road surface. A movable latch 101 is installed on the manhole base 100, which can be inserted into the latch groove 208 of the outer cover plate 200 to restrict the opening of the outer cover plate 200. A hinge seat 103 is provided on the manhole base 100. Multiple reinforcing ribs 102 are circumferentially arranged between the cylindrical body and the base of the manhole base 100.

[0032] like Figure 2 , 3 As shown in Figure 4, the outer cover plate 200 is annular, and a hinge joint 207 is provided on the outer edge of the outer cover plate 200. The hinge joint 207 of the outer cover plate 200 is connected to the hinge seat 103 of the well base 100 by a pin. A drainage hole 201 is provided on the outer cover plate 200. A support ring 202 is provided at the lower part of the outer cover plate 200. The support ring 202 is annular and has a notch. A support base 203 is connected to the bottom of the support ring 202. The support base 203 is located directly below the inner cover plate 300. A movable ring 204 is connected to the support base 203 by a spring 205. A core column 206 is provided at the center of the support base 203. The support base 203 includes a central disc and a connecting rod connecting the disc and the support ring 202.

[0033] like Figure 1 , 5As shown in Figures 6, 7, and 8, the inner cover plate 300 is disc-shaped and fits into the outer cover plate 200. A lower support 302 is provided at the lower part of the inner cover plate 300. The lower support 302 is annular, and multiple locking blocks 301 are provided on the outer side of the lower support 302. The locking blocks 301 can pass through the notch of the support ring 202 of the outer cover plate 200 and, after rotation, lock into the support ring 202. The disc-shaped body of the inner cover plate 300 is in contact with the movable ring 204 of the outer cover plate 200. When the locking blocks 301 are not locking the support ring 202, the movable ring 204 lifts the inner cover plate 300. The lower support 302 of the inner cover plate 300 is supported on the support base 203. Figure 1 , 3 As shown, the inner cover plate 300 is provided with two auxiliary countersunk holes 304, which can be used to drive the rotation of the inner cover plate 300 by inserting fingers or tools into the auxiliary countersunk holes 304.

[0034] like Figure 5-8 As shown, the support ring 202 and the lower bracket 302 have a hollow structure, which reduces weight and saves materials.

[0035] like Figure 6 , 8 As shown, the monitoring terminal 400 includes a capacitive sensor 401, a liquid level sensor 402, a lithium battery, a wireless transceiver module, and a control module. The monitoring terminal 400 has an openable, enclosed interface and is detachably installed below the outer cover plate 200. The outer cover plate 200 has a through hole, and the capacitive sensor 401 is installed in the through hole with its upper part flush with the upper surface of the outer cover plate 200. The liquid level sensor 402 is suspended inside the wellhead. The control module is connected to the capacitive sensor 401, the liquid level sensor 402, and the wireless transceiver module for data uploading. The lithium battery provides power.

[0036] The working principle of this utility model:

[0037] This municipal intelligent safety manhole cover combines mechanical design and sensing technology, and has three states: closed, open, and draining.

[0038] In the drainage mode, the inner cover plate 300 of the manhole cover can rotate and pop out through a mechanical structure, exposing a larger hole so that rainwater can quickly flow into the ground, allowing for rapid drainage without fully opening the manhole cover. The manhole cover integrates a capacitive sensor 401 and a liquid level sensor 402 for real-time monitoring of road surface water level and manhole water level, automatically feeding back water accumulation data for timely investigation and maintenance, reducing the frequency of manual inspections and improving municipal management efficiency.

[0039] Normal (closed) state: The manhole cover is closed, completely covering the manhole opening to ensure the safety of pedestrians and vehicles.

[0040] Drainage status: When the water level on the road reaches a certain height (detected by the sensor), the drainage mode is triggered, the inner cover plate 300 rotates and pops out, exposing the drainage hole 201, so that the rainwater can be quickly discharged into the underground drainage system.

[0041] Reset state: After the water is drained, the inner cover 300 returns to the closed state to prevent foreign objects from entering the well. The buckle 101 on the well seat 100 is inserted into the slot 208 of the outer cover 200 to avoid safety hazards such as the well cover being blown open.

[0042] The inner cover 300 of this invention is manually operated, primarily to save costs and reduce equipment complexity, while also increasing the battery life. With technological advancements or improved power supply, an electrically driven automatic structure can be adopted. For example, a drive motor could be installed under the support base 203, with its output shaft passing through the hollow core column 206 and connecting to the cylindrical section 303 of the inner cover 300, thus rotating the inner cover 300. Simultaneously, the spring 205 and the movable ring 204 can be eliminated, and an electric cylinder can be installed between the connecting rod of the support base 203 and the inner cover 300 as a lifting structure for the inner cover 300. This cylinder would rise during drainage and retract afterward.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and characteristics of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A municipal intelligent safety manhole cover, characterized in that: Includes well base (100), outer cover plate (200), inner cover plate (300), and monitoring terminal (400). The manhole base (100) includes a cylinder and a base, and is installed at the manhole opening. The upper part is flush with the road surface. A movable buckle (101) is installed on the manhole base (100). The buckle (101) can be inserted into the slot (208) of the outer cover plate (200) to restrict the opening of the outer cover plate (200). A hinge seat (103) is provided on the manhole base (100). The outer cover plate (200) is annular, and a hinge joint (207) is provided on the outer edge of the outer cover plate (200). The hinge joint (207) of the outer cover plate (200) is connected to the hinge seat (103) of the well base (100) by a pin. A drainage hole (201) is provided on the outer cover plate (200). A support ring (202) is provided at the lower part of the outer cover plate (200). The support ring (202) is annular and has a notch. A support base (203) is connected to the bottom of the support ring (202). The support base (203) is located directly below the inner cover plate (300). A movable ring (204) is connected to the support base (203) by a spring (205). A core column (206) is provided at the center of the support base (203). The inner cover plate (300) is disc-shaped and fits into the outer cover plate (200). A lower support (302) is provided at the lower part of the inner cover plate (300). The lower support (302) is annular, and multiple locking blocks (301) are provided on the outer side of the lower support (302). The locking blocks (301) can pass through the notch of the support ring (202) of the outer cover plate (200) and lock into the support ring (202) after rotation. The disc body of the inner cover plate (300) fits against the movable ring (204) of the outer cover plate (200). When the locking block (301) does not lock the support ring (202), the movable ring (204) lifts the inner cover plate (300). The lower support (302) of the inner cover plate (300) is supported on the support base (203). The monitoring terminal (400) includes a capacitive sensor (401), a liquid level sensor (402), a lithium battery, a wireless transceiver module, and a control module. The monitoring terminal (400) is an openable closed interface and is detachably installed under the outer cover plate (200). The outer cover plate (200) is provided with a through hole, and the capacitive sensor (401) is installed in the through hole with its upper part flush with the upper surface of the outer cover plate (200). The liquid level sensor (402) is suspended inside the wellhead. The control module is connected to the capacitive sensor (401), the liquid level sensor (402), and the wireless transceiver module to upload data. The lithium battery provides power.

2. The municipal intelligent safety manhole cover according to claim 1, characterized in that: The well base (100) has multiple reinforcing ribs (102) arranged circumferentially between the cylinder and the base.

3. A municipal intelligent safety manhole cover according to claim 1, characterized in that: The inner cover plate (300) is provided with two auxiliary countersunk holes (304), which can be used to drive the rotation of the inner cover plate (300) by inserting fingers or tools into the auxiliary countersunk holes (304).

4. A municipal intelligent safety manhole cover according to claim 1, characterized in that: The support ring (202) and the lower bracket (302) are hollow structures.

5. A municipal intelligent safety manhole cover according to claim 1, characterized in that: The support base (203) includes a central disk and a connecting rod that connects the disk and the support ring (202).

Images