A five-prevention well lid for detecting sinking of a well lid and a base and a method thereof

Abstract

The application discloses a five-prevention well lid for detecting sinking of a well lid and a base and a method thereof, comprising a base and a well lid hinged to the base, wherein the base comprises coaxially arranged first and second inner walls, the inner diameter of the first inner wall is larger than that of the second inner wall; a step surface is arranged between the first and second inner walls, at least three annularly distributed first through holes are formed in the step surface, a first distance measuring sensor for detecting whether the base sinks is arranged at the first through hole, the first distance measuring sensor is electrically connected to an upper computer for transmitting a detection signal of the first distance measuring sensor, and the upper computer is arranged on the base or the well lid. The application realizes detection of sinking height and sinking direction of the base, and accurately obtains lid opening alarm, sinking height of the base, sinking direction of the base and sinking inclination angle of the base from a server terminal or a mobile phone terminal.

Description

Technical Field

[0001] This invention relates to the field of manhole covers, and more specifically to a five-proof manhole cover and method for detecting the sinking of the manhole cover and its base. Background Technology

[0002] With rapid urban development and heavy traffic, there are now numerous manhole covers on roads. Many of these covers and their bases have sunk or sunken, causing uneven roads. Vehicle traffic causes noise and vibration from the manhole covers and bases, disturbing nearby residents' rest at night and reducing driver comfort. Due to the complex road structure, different materials and construction techniques are used for manhole cover installation and asphalt pavement. Flexible materials such as the foundation under the manhole cover structure or the asphalt surface layer on top are prone to sinking or deformation. Moreover, the manhole cover and the surrounding road surface will experience different thermal expansion and contraction due to these different materials, leading to settlement or deformation of the structure under external stress.

[0003] The conventional method of detecting whether a manhole cover has sunk is to use an angle sensor or an accelerometer. Since these sensors are usually installed on the manhole cover, the footsteps of pedestrians or the passage of vehicles cause the manhole cover to vibrate slightly. This slight vibration causes the manhole cover to move up and down. This up and down movement is often detected by the angle sensor or accelerometer and mistakenly identified as the manhole cover sinking. Therefore, the accuracy of detecting whether a manhole cover has sunk is very low. Summary of the Invention

[0004] To address the deficiencies in the prior art, the present invention provides a five-proof manhole cover and its method for detecting the subsidence of the manhole cover and its base. The method can detect the subsidence height of the five-proof manhole cover in four directions and display the state of the established three-dimensional model of the five-proof manhole cover after subsidence and tilting.

[0005] In a first aspect, the present invention provides a five-proof manhole cover for detecting the sinking of the manhole cover and the base, comprising a base and a manhole cover hinged to the base, wherein the base comprises a first inner wall and a second inner wall coaxially arranged, and the inner diameter of the first inner wall is larger than the inner diameter of the second inner wall.

[0006] A stepped surface is provided between the first inner wall and the second inner wall. At least three circumferentially distributed first through holes are opened on the stepped surface. A first ranging sensor for detecting whether the base has sunk is provided at the first through hole. The number of first ranging sensors is at least three. The first ranging sensors are electrically connected to a host computer for transmitting the detection signal of the first ranging sensors. The host computer is set on the base or manhole cover.

[0007] In conjunction with the first aspect, the base and the manhole cover are hinged together by a hinge member, and a second sensor for detecting the opening and closing of the manhole cover is provided on the hinge member and the base, or a second sensor for detecting the opening and closing of the manhole cover is provided on the hinge member and the manhole cover.

[0008] In conjunction with the first aspect, the hinge includes a first link and a second link rotatably connected to the first link.

[0009] In conjunction with the first aspect, the first link includes a first circular shaft, a first member connected at one end to the first circular shaft, and a second circular shaft connected at the other end of the first member.

[0010] In conjunction with the first aspect, the second connecting rod includes a first round rod, a second rod member connected at one end to the first round rod, and a second round rod connected at the other end of the second rod member, wherein the first round rod is rotatably connected to a second circular shaft.

[0011] In conjunction with the first aspect, the second sensor includes a second sensor transmitter and a second sensor receiver for receiving signals from the second sensor transmitter. A second sensor through hole for mounting the second sensor transmitter is provided on the second connecting rod, and the second sensor receiver is disposed on the base or the manhole cover.

[0012] In conjunction with the first aspect, the first ranging sensor is a Hall ranging sensor, with the transmitting end of the Hall ranging sensor located at the first through hole, and the receiving end of the Hall ranging sensor located on the ground channel below the base.

[0013] In conjunction with the first aspect, the second sensor is a reed switch sensor.

[0014] Secondly, a method for detecting the subsidence of a five-proof manhole cover and its base includes:

[0015] Obtain the distance between the base of the five-proof manhole cover and the underground ditch when no settlement has occurred;

[0016] The first ranging sensor detects the distance between the base and the ditch in real time and obtains the detection signal of the first ranging sensor;

[0017] The host computer transmits the detection signal from the first ranging sensor to the server terminal;

[0018] Based on the detection signal from the first ranging sensor, the three-dimensional model of the five-proof manhole cover displayed on the server terminal updates the distance between the base and the underground channel in real time.

[0019] Beneficial effects:

[0020] In this application, the first through hole is distributed circumferentially on the step surface, which enables the application to detect the sinking height and sinking direction of the base in four directions: east, west, south, and north. It can accurately obtain the cover opening alarm, sinking height, sinking direction, and sinking tilt angle of the base from system information or mobile phone, thereby improving the accuracy of the sinking detection of the base and manhole cover.

[0021] In this application, the detection signals of the first ranging sensor and the second sensor are wirelessly transmitted to the server terminal, so that the server terminal can update the distance between the base and the ground channel in real time, simulate the sinking and tilting angle of the base, and make it easier for staff to intuitively observe the status of the base.

[0022] In this application, the second round rod is rotatably connected to the second round rod through hole, thereby realizing the hinge between the manhole cover and the base, so that the manhole cover can be rotated 180° and placed on the road surface without the need for hinge support or manual support, which reduces the difficulty of operation for workers and improves the work efficiency of workers.

[0023] In this application, when the manhole cover is opened, the receiving end of the second sensor gradually moves away from the transmitting end of the second sensor, and the magnetic field of the magnet weakens. After the receiving end of the second sensor senses that the magnetic field has weakened to a set threshold, it alarms the host computer. The host computer can wirelessly transmit the message that the manhole cover is open to the server terminal, so as to facilitate real-time monitoring of the status of the manhole cover and avoid situations that endanger the driving safety of vehicles and pedestrians. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of this device in some embodiments;

[0026] Figure 2 This is a schematic diagram of the structure of this device in some embodiments;

[0027] Figure 3 This is a schematic diagram of the hinge component in some embodiments of the device;

[0028] Figure 4 This is a transmission diagram of the device in some embodiments.

[0029] The reference numerals in the attached diagram have the following meanings: 1-base; 2-manhole cover; 3-hinge; 11-first inner wall; 12-second inner wall; 13-step surface; 14-first through hole; 31-first connecting rod; 32-second connecting rod; 311-first circular shaft; 312-first rod; 313-second circular shaft; 321-first round rod; 322-second rod; 323-second round rod; 324-second sensor through hole. Detailed Implementation

[0030] To facilitate the explanation of the technical solution of this application, some concepts involved in this application will be explained first below. It should be noted that if there are directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this invention, they are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0032] Example 1

[0033] See Figure 1 This invention provides a five-proof manhole cover for detecting the sinking of the manhole cover and base, including a base 1 and a manhole cover 2 hinged to the base 1. The base 1 includes a first inner wall 11 and a second inner wall 12 coaxially arranged, the inner diameter of the first inner wall 11 being larger than the inner diameter of the second inner wall 12. The base 1 can be an annular well with a stepped through hole, and the base 1 has a stepped groove on the outside to fit the ground channel. The base 1 is secured to the ground channel through the stepped groove. The manhole cover 2 can be circular, and the first inner wall 11 and the second inner wall 12 can be circular or square, etc.

[0034] like Figure 2As shown, a stepped surface 13 is provided between the first inner wall 11 and the second inner wall 12. Three circumferentially distributed first through holes 14 are formed on the stepped surface 13. A first ranging sensor for detecting whether the base 1 has sunk is provided at the first through hole 14. The number of first ranging sensors is three. The first ranging sensors are electrically connected to a host computer for transmitting the detection signals of the first ranging sensors. The host computer is set on the base 1 or the manhole cover 2. The stepped surface 13 can be flat, and the stepped surface 13 is provided to facilitate the placement of sensors. The first through holes 14 can be circular or square, etc. The host computer can be a microcontroller or other controller. In this embodiment, three first through holes 14 are provided and are circumferentially distributed at equal intervals on the stepped surface 13. This enables the detection of the sinking height of the base 1 in four directions (north, south, east, and west), which makes it easier for workers to accurately know the sinking height and sinking tilt angle of the base 1, and improves the accuracy of sinking detection of the base 1 and the manhole cover 2.

[0035] In some embodiments of this application, such as Figure 4 As shown, it also includes a wireless transmitter and receiver device, which is electrically connected to the host computer and is used to wirelessly transmit the detection signals of the first ranging sensor and the second sensor to the server terminal. This allows the server terminal to update the distance between the base 1 and the ground channel in real time, simulate the sinking and tilting angle of the base 1, and make it easier for staff to observe the status of the base 1 intuitively.

[0036] In some embodiments of this application, the base 1 and the manhole cover 2 are hinged to each other by a hinge member, and a second sensor for detecting the opening and closing of the manhole cover 2 is provided on the hinge member and the base 1, or the second sensor for detecting the opening and closing of the manhole cover 2 is provided on the hinge member and the manhole cover 2.

[0037] In some embodiments of this application, the hinge 3 includes a first link 31 and a second link 32 rotatably connected to the first link 31. This application realizes the hinge base 1 and the manhole cover 2 through the first link 31 and the second link 32.

[0038] In some embodiments of this application, the first connecting rod 31 includes a first circular shaft 311, a first rod 312 connected at one end to the first circular shaft 311, and a second circular shaft 313 connected at the other end of the first rod 312. The first circular shaft 311 and the second circular shaft 313 may be circular sleeves, and the first rod 312 may be a cuboid rod or an arc-shaped rod.

[0039] In some embodiments of this application, the second connecting rod 32 includes a first round rod 321, a second rod 322 connected to the first round rod 321 at one end, and a second round rod 323 connected to the other end of the second rod 322. The first round rod 321 is rotatably connected to a second circular shaft 313. The first round rod 321 and the second round rod 323 can be round rods, and the second rod 322 can be a cuboid rod or an arc-shaped rod. In this application, the first circular shaft 311 is rotatably connected to the manhole cover 2 via a pin. A second round rod through hole is provided on the base 1 to match the second round rod 323. The second round rod is rotatably connected to the second round rod through hole, thereby realizing the hinge between the manhole cover 2 and the base 1, so that the manhole cover 2 can be rotated 180°. The manhole cover 2 can be rotated and placed on the road surface without the need for hinge support or manual support, reducing the difficulty of operation for workers and improving the work efficiency of workers.

[0040] In some embodiments of this application, such as Figure 3 As shown, the second sensor includes a second sensor transmitter and a second sensor receiver for receiving signals from the second sensor transmitter. The second sensor transmitter can be a magnetic sensor (e.g., a magnet), and the second sensor receiver can be a reed switch sensor. A second sensor through hole 324 for mounting the second sensor transmitter is provided on the second connecting rod 32. The second sensor receiver is mounted on the base 1. When the contact wear between the manhole cover 2 and the base 1 reaches a certain value, the second sensor mounted on the base 1 is squeezed by the cover. The magnetic sensor mounted on the second sensor through hole 324 sinks to the electrode contact of the second sensor receiver on the base 1 and connects. When the magnetic sensor in the second sensor through hole 324 sinks to the electrode contact of the second sensor receiver on the base 1, it is triggered. The host computer uploads information about the sinking distance of the manhole cover 2 and the base 1 to the server terminal. When the manhole cover 2 and the base 1 are opened, the magnetic sensor mounted on the second sensor through hole 324 and the electrode contact of the second sensor receiver on the base 1 are offset by a certain position. The host computer uploads information that the manhole cover 2 has been opened to the server terminal. The host computer can wirelessly transmit the message that the manhole cover 2 is open to the server terminal, so as to facilitate real-time monitoring of the status of the manhole cover 2 and avoid situations that endanger the safety of vehicles and pedestrians.

[0041] In some embodiments of this application, the first ranging sensor is a Hall effect ranging sensor. The transmitting end of the Hall effect ranging sensor is located at the first through hole 14, and the receiving end of the Hall effect ranging sensor is located on the ground channel below the base 1, for real-time monitoring of the distance from the base 1 to the ground channel. Several segmented grooves are provided around the center of the stepped surface 13 for placing intelligent devices (e.g., a host computer, the first ranging sensor, and the second sensor) and cables. Multiple first through holes are provided in the east, south, west, and north directions of the stepped surface 13. Multiple spaced electrode contacts are installed under the first through holes 14. Multiple Hall effect ranging sensors are installed at the first through holes 14. A sealed spring chamber is installed at the first through hole 14, and a sealing spring is installed in the sealed spring chamber. The outer ring of the sealing spring and the sealing spring itself are waterproof. The middle of the sealing spring passes through the Hall effect ranging sensor and is flush with the top of the first through hole 14. When the manhole cover 2 is sealed on the base 1, there is a fixed distance threshold obtained by pre-measurement. When the manhole cover 2 and the base 1 sink, the electrode contact under the first through hole 14 is triggered and connected to the magnetic sensor in the middle of the sealing spring. The host computer terminal senses the time when the manhole cover 2 and the base 1 continue to sink. The Hall distance sensor collects the current distance between the base 1 and the ditch. Based on the standard value set by the host computer front end, the settlement of the fan-shaped area is judged and sent to the platform end. The platform data computing power obtains the settlement model of the manhole seat and the curve of the sinking distance of the base 1.

[0042] Secondly, a method for monitoring the subsidence of manhole covers with five prevention measures includes:

[0043] The distance between the base 1 and the ground channel when the five-proof manhole cover has settled is obtained using a communication module; the communication module can be a wireless transmitting and receiving device.

[0044] The first ranging sensor detects the distance between the base 1 and the ground ditch in real time and obtains the detection signal of the first ranging sensor;

[0045] The host computer transmits the detection signal from the first ranging sensor to the server terminal;

[0046] Based on the detection signal from the first ranging sensor, the three-dimensional model of the five-proof manhole cover displayed on the server terminal updates the distance between the base 1 and the underground channel in real time.

[0047] Based on the current sinking distance of the three-dimensional model of the five-proof manhole cover in the four directions of east, west, south, and north, this application simulates the current tilt angle of the three-dimensional model of the five-proof manhole cover. Using a server terminal, it calculates the end of the three-dimensional model of the five-proof manhole cover that is closest to the ditch after sinking or tilting (the lowest point of the base in the three-dimensional model of the five-proof manhole cover) and calculates the actual distance from the lowest point to the ditch, so that the staff can accurately know the current sinking height and tilt angle of the five-proof manhole cover.

[0048] Among them, the three-dimensional model of the five-proof manhole cover can be pre-built. Based on the size of the ditch, manhole cover 2 and base 1, the three-dimensional model of the five-proof manhole cover of the same size can be built on the server terminal. This makes it convenient for staff to monitor the real status of all five-proof manhole covers in the city. There is no need to open the manhole cover 1 or go to the site to measure the sinking of the base 1 one by one. This realizes remote monitoring of the five-proof manhole covers, which greatly improves the work efficiency of staff and reduces the probability of public safety hazards caused by the opening of manhole cover 2 on urban roads.

[0049] Example 2

[0050] Unlike Embodiment 1, in this embodiment, four circumferentially distributed first through holes 14 are opened on the stepped surface 13, and the number of first ranging sensors is four.

[0051] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0052] Example 3

[0053] Unlike Embodiment 1, the base 1 and the manhole cover 2 are equipped with a second sensor for detecting the opening and closing of the manhole cover 2. The second sensor includes a second sensor transmitter and a second sensor receiver for receiving signals from the second sensor transmitter. The second sensor transmitter can be a magnet, and the second sensor receiver can be a Hall effect sensor or a reed switch sensor. This device can be installed in the following manner:

[0054] Method 1: The second sensor transmitter is mounted on the base 1, and the second sensor receiver is mounted on the manhole cover 2;

[0055] Method 2: The second sensor transmitter is installed on the manhole cover 2, and the second sensor receiver is installed on the base 1.

[0056] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention described herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0057] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A five-prevention manhole cover for detecting sinking of a manhole cover and a base, characterized by, The manhole cover (2) is hinged to the base (1), the base (1) comprises coaxially arranged first inner wall (11) and second inner wall (12), the inner diameter of the first inner wall (11) is greater than the inner diameter of the second inner wall (12); A step surface (13) is arranged between the first inner wall (11) and the second inner wall (12), at least three first through holes (14) are arranged on the step surface (13), and a first distance measuring sensor is arranged at the first through hole (14) for detecting whether the base (1) has subsided, the number of first distance measuring sensors is at least three, the first distance measuring sensor is electrically connected to an upper computer for transmitting the detection signal of the first distance measuring sensor, and the upper computer is arranged on the base (1) or the manhole cover (2); The base (1) and the manhole cover (2) are hinged to each other by a hinge, the hinge is provided with a second sensor for detecting the opening and closing of the manhole cover (2) on the base (1), or the hinge is provided with a second sensor for detecting the opening and closing of the manhole cover (2) on the manhole cover (2), or the base (1) and the manhole cover (2) are provided with a second sensor for detecting the opening and closing of the manhole cover (2); The hinge (3) comprises a first connecting rod (31) and a second connecting rod (32) rotatably connected with the first connecting rod (31); The second sensor comprises a second sensor transmitting end and a second sensor receiving end for receiving the signal of the second sensor transmitting end, a second sensor through hole (324) is arranged on the second connecting rod (32) for mounting the second sensor transmitting end, and the second sensor receiving end is arranged on the base (1) or the manhole cover (2); The first distance measuring sensor is a hall distance measuring sensor, the transmitting end of the hall distance measuring sensor is arranged at the first through hole (14), and the receiving end of the hall distance measuring sensor is arranged on the ground channel below the base (1); The second sensor is a reed sensor.

2. The five-prevention manhole cover for detecting the sinking of manhole cover and base according to claim 1, characterized in that, The first connecting rod (31) comprises a first circular shaft (311), a first rod (312) connected with one end of the first circular shaft (311), and a second circular shaft (313) connected with the other end of the first rod (312).

3. The five-prevention manhole cover for detecting the sinking of manhole cover and base according to claim 2, characterized in that, The second connecting rod (32) comprises a first circular rod (321), a second rod (322) connected with one end of the first circular rod (321), and a second circular rod (323) connected with the other end of the second rod (322), and the first circular rod (321) is rotatably connected with the second circular shaft (313).

4. A method for detecting the sinking of a manhole cover and base of a five-prevention manhole cover applied to the five-prevention manhole cover for detecting the sinking of a manhole cover and base according to any one of claims 1 to 3, characterized in that, It comprises: When the five-prevention manhole cover does not subside, the distance between the base (1) and the ground channel is obtained; The first distance measuring sensor detects the distance between the base (1) and the ground channel in real time, and obtains the detection signal of the first distance measuring sensor; The upper computer transmits the detection signal of the first distance measuring sensor to the server terminal; According to the detection signal of the first distance measuring sensor, the five-prevention manhole cover three-dimensional model displayed on the server terminal is updated in real time.

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