Well lid capable of monitoring environment temperature
By using floating plates, protective covers and fixed airbags in the manhole cover, the problems of sensor aging and signal interference in humid environments are solved, the durability and signal stability of the sensor are achieved, and the safety warning effect at night is improved.
Patent Information
- Application Number
- CN202421140082.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-23
AI Technical Summary
Existing manhole cover sensors for monitoring ambient temperature are prone to aging and corrosion when exposed to water or humid environments for a long time, resulting in reduced durability and distortion of measurement accuracy, and water affects signal stability.
A manhole cover structure including floating plates, protective covers, fixed airbags and warning components are designed. The protective cover can be raised and moved to protect the sensor. The fixed airbags enhance sealing by inflating, and the warning components use phosphorescent materials to improve night visibility.
Effectively prevent sensor corrosion, ensure the accuracy of monitoring data and signal stability, and increase nighttime safety warnings to reduce accidents.
Smart Images

Figure CN222349767U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manhole covers, in particular to a manhole cover capable of monitoring ambient temperature. Background Art
[0002] A manhole cover that can monitor ambient temperature is an intelligent manhole cover. Its structure usually includes a temperature sensor, a controller, a wireless communication module, and a power supply system. The main function of this manhole cover is to monitor and record temperature changes around the manhole cover in real time, helping environmental protection agencies or city managers understand the city’s climate change and microclimate conditions. In winter, monitoring the temperature around the manhole cover can help detect the risk of road freezing in time, so that salting or other anti-slip measures can be taken in time.
[0003] In the rainy season or when the rainfall is heavy, the groundwater level will rise and increase the water pressure in the wellbore, causing water to penetrate or overflow upward through the wellbore. Most sensors used to monitor ambient temperature in the prior art have a certain degree of waterproof performance, but the level of waterproof performance and water resistance vary depending on the sensor type, design and manufacturing process. Generally speaking, these sensors can work normally when exposed to water for a short time, but long-term contact with water, long-term moisture, and complete immersion in water may cause aging, deterioration or corrosion of the sensor housing or seals, reducing the durability and service life of the sensor. Secondly, it may also cause corrosion of sensor components or short circuit, open circuit or component damage in the circuit, thereby affecting the accuracy and precision of the sensor. In addition, the presence of water may change the thermal conductivity characteristics of the surrounding area of the sensor probe, resulting in temperature measurement distortion. The presence of water may also cause interference or crosstalk in the sensor signal line, affecting the stability and reliability of the sensor signal transmission.
[0004] Therefore, it is necessary to design a manhole cover that can monitor the ambient temperature to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and provides a manhole cover capable of monitoring the ambient temperature.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A manhole cover capable of monitoring ambient temperature comprises a manhole cover seat, a manhole cover body is mounted on the manhole cover seat, a temperature sensor is provided at the bottom of the manhole cover body, a floating plate is slidably connected to the inside of the manhole cover seat, a protective cover arranged opposite to the temperature sensor is fixed on the floating plate, a slot matching the protective cover is provided at the bottom of the manhole cover body, a protective component is provided at the bottom of the manhole cover body, the protective component is used to strengthen the sealing between the protective cover and the manhole cover body, and a warning component is also provided on the manhole cover body.
[0008] As a preferred technical solution of the utility model, the protective component includes two fixed air bags, placement grooves are provided on both inner sides of the card slot, the two fixed air bags are respectively fixed in the two placement grooves, and the side walls of the two fixed air bags are connected with connecting pipes, a cavity is provided in the manhole cover body, a magnetic block is fixed inside the cavity, an electromagnet is also slidably connected inside the cavity, a telescopic air bag is fixedly connected between the magnetic block and the electromagnet, the two connecting pipes are connected to the telescopic air bags, and a power board is fixed on the top surface of the protective cover and the inner top surface of the card slot.
[0009] As a preferred technical solution of the utility model, the warning component includes two driving airbags fixedly connected to a floating plate, the top of the driving airbag is fixed to the bottom of the manhole cover body, the floating plate is fixed with two sleeves, the top of the sleeve passes through the bottom of the manhole cover body, the internal sealing sliding connection of the sleeve is connected with a telescopic rod, the top position of the side wall of the driving airbag is connected to a driving tube, the driving tube is connected to the inside of the sleeve, and the connection between the driving tube and the sleeve is located at the bottom end of the side wall of the sleeve.
[0010] As a preferred technical solution of the utility model, the sleeve and the telescopic rod are both made of phosphorescent material.
[0011] As a preferred technical solution of the utility model, a plurality of card blocks 2 are provided on the outer side and the inner side of the protective cover, a plurality of card blocks 1 are provided on the opposite side walls of the two fixed airbags, and the card blocks 1 and the card blocks 2 are arranged alternately.
[0012] As a preferred technical solution of the utility model, the first clamping block and the second clamping block are both made of rubber.
[0013] The utility model has the following beneficial effects:
[0014] 1. Waterproof effect: The temperature sensor can be covered by the protective cover through its upward movement, which plays a waterproof protection role for the temperature sensor, protects the sensor from water erosion, and ensures the durability and service life of the sensor;
[0015] 2. Stability guarantee: By inflating the fixed airbag, the protective cover is pressurized to achieve stable fixation of the protective cover position, and at the same time fill the gap between the card slot and the protective cover to ensure the sealing effect of the protective cover on the sensor and prevent water from penetrating. This can prevent corrosion and damage to the sensor housing and internal components, and prevent the sensor surface and probe from contacting water, ensuring the accuracy of monitoring data and the stability of signal transmission;
[0016] 3. Safety warning: As the protective cover rises and moves, the sleeve and telescopic rod will also extend out of the manhole cover body, serving as a warning to pedestrians and vehicles, increasing the attention of pedestrians and drivers and reducing the occurrence of accidents. The sleeve and telescopic rod are made of phosphorescent material and can emit light at night, further improving the safety performance of the manhole cover and increasing the alertness of pedestrians and drivers at night. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a manhole cover capable of monitoring ambient temperature proposed by the utility model;
[0018] Figure 2 The figure is a schematic diagram of the internal structure of the manhole cover seat;
[0019] Figure 3 Schematic diagram of the internal structure of the manhole cover body;
[0020] Figure 4 for Figure 3 A magnified view of the structure at A;
[0021] Figure 5 for Figure 3 A magnified view of the structure at B;
[0022] Figure 6 It is a schematic diagram of the structure of the protective cover, including an enlarged diagram of part of the structure of the card block 2.
[0023] In the figure: 1 manhole cover seat, 2 manhole cover body, 3 temperature sensor, 4 protective cover, 5 floating plate, 6 card slot, 7 power board, 8 placement slot, 9 fixed airbag, 10 connecting pipe, 11 cavity, 12 electromagnet, 13 magnetic block, 14 telescopic airbag, 15 sleeve, 16 telescopic rod, 17 driving pipe, 18 driving airbag, 19 card block one, 20 card block two. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0025] Reference Figure 1-6A manhole cover capable of monitoring ambient temperature comprises a manhole cover seat 1, a manhole cover body 2 is mounted on the manhole cover seat 1, a temperature sensor 3 is arranged at the bottom of the manhole cover body 2, a floating plate 5 is slidably connected inside the manhole cover seat 1, the floating plate 5 is made of a foam board to reduce the cost of the device, a protective cover 4 arranged opposite to the temperature sensor 3 is fixed on the floating plate 5, a card slot 6 adapted to the protective cover 4 is arranged at the bottom of the manhole cover body 2, and the cross section of one end of the card slot 6 is in an inverted funnel shape, which can increase the contact range between the protective cover 4 and the card slot 6, so that the protective cover 4 can be moved into the card slot 6, a protective component is arranged at the bottom of the manhole cover body 2, and the protective component is used to strengthen the sealing between the protective cover 4 and the manhole cover body 2, and a warning component is also arranged on the manhole cover body 2.
[0026] Reference Figure 2-6 The protective component includes two fixed airbags 9, the cross section of the fixed airbags 9 is a Chinese-shaped structure, the two inner sides of the card slot 6 are provided with placement grooves 8, the two fixed airbags 9 are respectively fixed in the two placement grooves 8, and the side walls of the two fixed airbags 9 are connected with connecting pipes 10. In the initial state, the fixed airbags 9 are completely located in the placement grooves 8, so as to ensure that the protective cover 4 can move smoothly into the card slot 6. A cavity 11 is provided in the manhole cover body 2, and a magnetic block 13 is fixed inside the cavity 11. An electromagnet 12 is also slidably connected to the inside of the cavity 11. A telescopic airbag 14 is fixedly connected between the magnetic block 13 and the electromagnet 12. The two connecting pipes 10 They are all connected with the telescopic airbag 14, and the top surface of the protective cover 4 and the inner top surface of the card slot 6 are fixed with a power board 7. When the two power boards 7 are in contact, the circuit will be turned on, so that the electromagnet 12 is energized and has magnetism, and is attracted to the magnetic block 13. A power supply device is also provided in the manhole cover body 2, and the connecting wires between the power supply, the power board 7 and the electromagnet 12 are all waterproofed, wherein the wiring seal on the power board 7 on the protective cover 4 is located inside the protective cover 4, and its specific circuit connection methods are all existing technologies, which will not be described in detail here. The fixed airbag 9 can fill the gap between the protective cover 4 and the card slot 6, thereby ensuring the sealing of the device.
[0027] Reference Figure 1 and Figure 2The warning component includes two driving airbags 18 fixedly connected to the floating plate 5. The top of the driving airbag 18 is fixed to the bottom of the manhole cover body 2. The floating plate 5 is fixed with two sleeves 15. The top of the sleeve 15 passes through the bottom of the manhole cover body 2. When the water level in the well does not rise, the top of the sleeve 15 is flush with the upper surface of the manhole cover body 2, which will not affect pedestrians and passing vehicles. The internal sealing sliding connection of the sleeve 15 is a telescopic rod 16. The sleeve 15 and the telescopic rod 16 are made of phosphorescent material. The luminescence principle of the phosphor is that after being excited by light, the excited state electrons inside it will be excited to a higher energy level to form an excited state. When the light source disappears, these excited state electrons will gradually return to the original state. It returns to the ground state, releases the stored energy and emits light. Since the phosphor can store energy for a long time, its luminous time can be extended to several months or even longer. The extension of the sleeve 15 and the telescopic rod 16 can serve as a warning to pedestrians and vehicles, especially at night. The sleeve 15 and the telescopic rod 16 can emit light, so that pedestrians and vehicles can stay away from the manhole cover body 2, thereby preventing the manhole cover body 2 from being separated and offset from the manhole cover seat 1 due to high water pressure in the well, reducing safety hazards. The top position of the side wall of the driving airbag 18 is connected to a driving tube 17, and the driving tube 17 is connected to the inside of the sleeve 15, and the connection between the driving tube 17 and the sleeve 15 is located at the bottom end of the side wall of the sleeve 15.
[0028] Reference Figure 4 and Figure 6 A plurality of card blocks 20 are provided on the outer and inner sides of the protective cover 4, and a plurality of card blocks 19 are provided on the opposite side walls of the two fixed airbags 9, and the card blocks 19 and the card blocks 20 are arranged alternately, and the card blocks 19 and the card blocks 20 are both made of rubber. When the fixed airbag 9 is inflated, the card blocks 19 and the card blocks 20 can mesh with each other, so that the contact area between the protective cover 4 and the fixed airbag 9 is increased, thereby having better sealing performance.
[0029] The specific working principle of the utility model is as follows:
[0030] When the water in the well overflows upward, the floating plate 5 will move upward with the rise of the water level, thereby driving the protective cover 4 to move upward. When the protective cover 4 is inserted into the card slot 6, the protective cover 4 can cover the temperature sensor 3 therein, thereby providing waterproof protection for the temperature sensor 3. As the protective cover 4 continues to move upward, the two power boards 7 come into contact to make the circuit conductive, thereby making the electromagnet 12 energized and magnetic. The electromagnet 12 and the magnetic block 13 attract each other, thereby making the electromagnet 12 move toward the direction of the magnetic block 13 and squeeze the telescopic airbag 14, so that the air in the telescopic airbag 14 passes through the connecting pipe 10. Entering into the fixed airbag 9, the fixed airbag 9 is inflated to apply pressure to the protective cover 4 to fix the protective cover 4 and ensure the stability of the position of the protective cover 4. At the same time, the fixed airbag 9 can fill the gap between the card slot 6 and the protective cover 4 to ensure the sealing effect of the protective cover 4 on the temperature sensor 3, thereby preventing the temperature sensor 3 from being immersed in water and causing aging, deterioration or corrosion of the shell and internal components, ensuring the durability and service life of the sensor. At the same time, after the water level drops, it can prevent the water on the probe from affecting the accuracy and precision of the sensor monitoring, ensuring the stability and reliability of the sensor signal transmission;
[0031] Furthermore, in the process of the float plate 5 driving the protective cover 4 to move upward, the float plate 5 will also drive the sleeve 15 to move, so that the sleeve 15 can extend out of the outside of the manhole cover body 2, thereby serving as a warning to pedestrians and vehicles. At the same time, the upward movement of the float plate 5 will also squeeze the driving airbag 18, so that the air in the driving airbag 18 enters the sleeve 15 through the driving tube 17. After the sleeve 15 is inflated, it will push the telescopic rod 16 upward, so that the telescopic rod 16 extends out of the sleeve 15. In this way, the telescopic rod 16 can increase the height of the sleeve 15, increase the visibility of pedestrians and drivers, and thereby reduce safety hazards. In addition, the sleeve 15 and the telescopic rod 16 are made of phosphorescent material and can emit light at night, thereby further improving the safety performance of the manhole cover.
[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A manhole cover capable of monitoring ambient temperature, comprising a manhole cover seat (1), a manhole cover body (2) being mounted on the manhole cover seat (1), characterized in that: A temperature sensor (3) is provided at the bottom of the manhole cover body (2); a floating plate (5) is slidably connected to the inside of the manhole cover seat (1); a protective cover (4) arranged opposite to the temperature sensor (3) is fixed on the floating plate (5); a slot (6) adapted to the protective cover (4) is provided at the bottom of the manhole cover body (2); a protective component is provided at the bottom of the manhole cover body (2); the protective component is used to enhance the sealing between the protective cover (4) and the manhole cover body (2); and a warning component is also provided on the manhole cover body (2).
2. A manhole cover capable of monitoring ambient temperature according to claim 1, characterized in that: The protection component comprises two fixed air bags (9), both inner sides of the card slot (6) are provided with placement grooves (8), the two fixed air bags (9) are respectively fixed in the two placement grooves (8), and the side walls of the two fixed air bags (9) are connected with connecting pipes (10), a cavity (11) is provided in the manhole cover body (2), a magnetic block (13) is fixed inside the cavity (11), an electromagnet (12) is also slidably connected inside the cavity (11), a telescopic air bag (14) is fixedly connected between the magnetic block (13) and the electromagnet (12), the two connecting pipes (10) are connected with the telescopic air bag (14), and a power connection plate (7) is fixed on the top surface of the protection cover (4) and the inner top surface of the card slot (6).
3. A manhole cover capable of monitoring ambient temperature according to claim 1, characterized in that: The warning component comprises two driving airbags (18) fixedly connected to a floating plate (5), the top end of the driving airbags (18) being fixed to the bottom of a manhole cover body (2), the floating plate (5) being fixed with two sleeves (15), the top end of the sleeves (15) passing through the bottom of the manhole cover body (2), the interior of the sleeves (15) being sealingly slidably connected to a telescopic rod (16), the top end of the side wall of the driving airbag (18) being connected to a driving tube (17), the driving tube (17) being connected to the interior of the sleeve (15), and the connection between the driving tube (17) and the sleeve (15) being located at the bottom end of the side wall of the sleeve (15).
4. A manhole cover capable of monitoring ambient temperature according to claim 3, characterized in that: The sleeve (15) and the telescopic rod (16) are both made of phosphorescent material.
5. A manhole cover capable of monitoring ambient temperature according to claim 2, characterized in that: The outer side and the inner side of the protective cover (4) are both provided with a plurality of second card blocks (20), and the opposite side walls of the two fixed air bags (9) are both provided with a plurality of first card blocks (19), and the first card blocks (19) and the second card blocks (20) are arranged alternately.
6. A manhole cover capable of monitoring ambient temperature according to claim 5, characterized in that: The first clamping block (19) and the second clamping block (20) are both made of rubber.