CN217520515U

CN217520515U - Fixed bolster and monitoring devices

Info

Publication number: CN217520515U
Application number: CN202122639059.3U
Authority: CN
Inventors: 刘虹; 孙发鹏; 朱晓南; 罗喜娟
Original assignee: Hongfujin Precision Electronics Zhengzhou Co Ltd; Zhengzhou Wanmayun Electronic Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Electronics Zhengzhou Co Ltd; Zhengzhou Wanmayun Electronic Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-09-30
Anticipated expiration: 2031-10-29

Abstract

The application provides a fixed bolster for be fixed in the well lid with the well lid monitor on, the fixed bolster includes: the first installation part is used for connecting the well lid, a plurality of positioning holes are formed in the first installation part, and the positioning holes are arranged corresponding to the air holes in the well lid; a connecting portion having a first end and a second end, the first end being connected to the first mounting portion; and a second installation part for installing the well lid monitor, the second installation part is connected with the second end. In addition, this application still provides a monitoring devices. This application through set up on the fixed bolster with the corresponding locating hole of current bleeder vent on the well lid for the one end of fixed bolster is fixed in the below of well lid, the well lid monitor is then installed to the other end, and then makes the well lid is together fixed with the well lid monitor, so, can simplify the installation procedure of well lid monitor greatly, save installation time.

Description

Fixed bolster and monitoring devices

Technical Field

The application relates to the well lid field, especially relates to a fixed bolster and monitoring devices.

Background

The smart city is built as the leading trend of the development of the city in the world, and the road well lid cannot meet the development requirement of the smart city by means of the traditional municipal public facility management mode. The road well covers are in accordance with the convenience degree of cities, and the number of the road well covers is large, so that the management difficulty is very high. The well lid often sinks, perks, illegally opens, stolen scheduling problem of losing, and these problems often are difficult to rely on artifical the patrolling and examining to find and solve. Consequently, it has become the trend that installation well lid monitor carries out intelligent monitoring to the well lid at present on the well lid, but often the installation of well lid monitor needs professional constructor to install, and the instrument that the installation needs is comparatively many with supplementary material. And need punch on the well lid when installing for the installation of well lid monitor is fixed very troublesome.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a fixing bracket that can facilitate the installation of a manhole cover monitor.

The first aspect of the application provides a fixed bolster to be fixed in the well lid with the well lid monitor on, the fixed bolster includes: the first installation part is used for connecting the well lid, a plurality of positioning holes are formed in the first installation part, and the positioning holes are arranged corresponding to the air holes in the well lid; a connecting portion having a first end and a second end, the first end being connected to the first mounting portion; and a second mounting portion for mounting the well lid monitor, the second mounting portion being connected to the second end.

Optionally, the connecting portion with the cooperation of first installation department is L shape, the second installation department with the cooperation of connecting portion is L shape, just the second installation department to with the opposite direction of first installation department extends.

Optionally, the well lid has an accommodation portion, the first installation portion set up in the accommodation portion.

Optionally, the first mounting portion has a fan shape, and has a top edge, a bottom edge and two side edges, the top edge has an arc shape, two ends of the top edge are respectively connected to one end of one of the side edges, and two ends of the bottom edge are respectively connected to the other end of one of the side edges.

Optionally, the well lid monitor has been seted up the mounting hole on, the mating holes has been seted up on the second installation department, the mating holes corresponds the mounting hole sets up for the cooperation the mounting hole is in order to connect the fixed bolster with the well lid monitor.

A second aspect of the application provides a monitoring device, including the well lid monitor, the well lid monitor includes casing and apron, the apron with casing detachably assembles together, monitoring device still includes as above the fixed bolster, the fixed bolster is used for with the well lid monitor is fixed in on the well lid.

Optionally, the housing includes a bottom surface, an outer side wall and an inner side wall, the bottom surface is a horizontal surface, and the outer side wall and the inner side wall are disposed at the periphery of the bottom surface in a certain radian; the outer side wall is provided with a mounting hole, and the mounting hole is used for being matched with the matching hole so as to connect the fixing support and the shell.

Optionally, the cover plate comprises a top surface, the top surface is circular, a plurality of notches which are arranged at equal intervals are formed in the edge of the top surface along the circumferential direction, and the notches correspond to the mounting holes and are matched with the mounting holes to mount the fixing support.

Optionally, the outer side wall and the inner side wall are arranged at an interval, a gap is formed between the outer side wall and the inner side wall, and a sealing portion is arranged at a position, close to the cover plate, of the inner side wall.

Optionally, the well lid monitor further comprises: the detection module and the first communication module are electrically connected with the control module, wherein the detection module comprises at least one sensor unit for monitoring parameters of the well lid; the control module is used for processing the parameters monitored by the detection module; the communication module is used for realizing the external communication connection of the well lid monitor.

Compared with the prior art, the application has at least the following beneficial effects: through set up on the fixed bolster with the corresponding locating hole of current bleeder vent on the well lid for the one end of fixed bolster is fixed in the below of well lid. The other end of the fixed support is provided with the well lid monitor, so that the well lid and the well lid monitor are fixed together. Therefore, the installation steps of the well lid monitor can be greatly simplified, and the installation time is saved.

Drawings

Fig. 1 is a schematic structural view of a monitoring device and a manhole cover according to an embodiment of the present disclosure.

Fig. 2 is an exploded view of the monitoring device and the manhole cover shown in fig. 1 of the present application.

Fig. 3 is an exploded schematic view of a partial structure of the manhole cover monitor.

FIG. 4 is a schematic view of the housing of the well lid monitor of FIG. 3.

Fig. 5 is a schematic view of the housing, the cover plate and the expansion joint of the manhole cover monitor shown in fig. 3.

Figure 6 is a schematic view of functional modules of the well lid monitor according to an embodiment of the present application.

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Description of the main elements

Manhole cover monitor 100

Control module 110

First communication module 120

NB module unit 121

SIM card unit 122

NB antenna unit 123

Second communication module 124

Detection module 130

Attitude sensor 131

Overflow sensor 132

Water level monitoring unit 133

Temperature sensor 134

Gas sensor 135

Positioning unit 136

Overflow monitoring interface 137

Expansion interface 138

Power supply unit 140

Outer cover 200

Case 21

Bottom surface 210

Outer side wall 211

Inner side wall 212

Electrode via 213

Groove 214

Clamping part 215

Mounting hole 216

Bottom wall 217

Water leakage hole 218

Connecting part 219

Connection port 220

Gap 221

Sealing part 222

Cover plate 23

The top surface 231

Notch 232

Connection hole 233

Mounting groove 234

Accommodating space 25

Expansion joint 300

Printed circuit board 400

Well cover 500

Air vent 510

First rib 520

Second rib 530

Accommodating part 540

First surface 521

Second surface 522

Fixing bracket 600

First mounting part 610

Positioning hole 611

Bolt 612

Nut 613

Top edge 614

Bottom edge 615

Side 616

Connecting part 620

Second mounting part 630

Fitting hole 631

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, the present application provides a monitoring device. The monitoring device comprises a well lid monitor 100 and a fixing support 600.

The well lid monitor 100 is used to monitor parameters of the well lid 500. The well lid monitor 100 has a housing 200, the housing 200 includes a housing 21 and a cover plate 23.

With continued reference to fig. 3 and 4, the housing 21 includes a bottom surface 210, an outer sidewall 211 and an inner sidewall 212.

The outer sidewall 211 and the inner sidewall 212 are both disposed on the bottom surface 210. In the embodiment, the bottom surface 210 is a horizontal surface, and the outer sidewall 211 and the inner sidewall 212 are disposed on the periphery of the bottom surface 210 with a certain curvature. The bottom surface 210 is provided with two electrode through holes 213. In one embodiment, the two electrode vias 213 are symmetrically disposed.

The bottom surface 210 is further provided with a groove 214. The recess 214 may be used to attach a parameter tag (not shown) of the well lid monitor 100, such as a parameter tag that records parameters of the well lid monitor 100, such as serial number, rated voltage, and rated current.

The outer sidewall 211 is recessed inwardly (i.e., toward the inner sidewall 212) along its peripheral wall to form a plurality of clips 215. Each of the clamping portions 215 may be shaped and configured to fit with the finger structure of a user, so that an installer can easily grasp the well lid monitor 100 and perform other operations of installation or removal.

In the present embodiment, the housing 21 is further provided with a mounting hole 216. For example, the mounting hole 216 is provided on the outer sidewall 211. The mounting hole 216 is also located in a bottom wall 217 of each of the clips 215. The mounting hole 216 is configured to be coupled with the coupling hole 631 (see fig. 2) to mount the fixing bracket 600. The mounting holes 216 are disposed corresponding to the positions of each of the notches 232, and are used to cooperate with the notches 232 (see fig. 5) to mount the fixing bracket 600.

It is understood that the outer sidewall 211 is provided with a plurality of water leakage holes 218 for draining water that may enter the housing 21. Of course, it should be understood that the position, number and the like of the water leakage holes 218 are not limited in the embodiment of the present application.

It will be appreciated that, with continued reference to fig. 4, the outer sidewall 211 is formed with a connection 219 recessed inwardly along its peripheral wall. A connecting port 220 is formed on the bottom wall of the connecting part 219. The connection port 220 penetrates the outer sidewall 211 and the inner sidewall 212.

Referring to fig. 3 again, the outer sidewall 211 and the inner sidewall 212 are disposed at an interval and are connected to the bottom surface 210. A gap 221 is formed between the outer sidewall 211 and the inner sidewall 212. A sealing portion 222 is disposed on a portion of the inner sidewall 212 adjacent to the cover plate 23. The sealing portion 222 is used to prevent liquid such as water from entering the inside of the housing 21 from the joint between the cover 23 and the housing 21 after the cover 23 is assembled with the housing 21, i.e. water cannot penetrate the inside of the housing 21.

Referring to fig. 3, the cover plate 23 is detachably assembled with the housing 21, and forms an accommodating space 25.

The cover plate 23 includes a top surface 231. The top surface 231 is substantially circular, and a plurality of notches 232 are formed at equal intervals along the circumferential direction of the edge.

It can be understood that the top 231 of the cover plate 23 is further provided with a plurality of connecting holes 233. The connection hole 233 is used for a connection member (not shown) of the housing 21 to pass through. In one embodiment, the connecting member is a screw, and the connecting hole 233 is a screw hole. In this way, the cover plate 23 and the housing 21 are assembled together by the connecting members by passing screws through the corresponding screw holes, and the receiving space 25 is formed.

It is understood that, in the embodiment of the present application, the opening position of the connection hole 233 is various and is not limited in particular. For example, in one embodiment, the top surface 231 is provided with a plurality of mounting grooves 234 extending radially toward the edge thereof with the center thereof as a starting point, and the number of the mounting grooves 234 may be, for example, the same as the number of the notches 232. Each of the mounting grooves 234 extends to the corresponding notch 232. Thus, one or more connection holes 233 may be formed on both sides of each mounting groove 234.

It is understood that the housing 21 and the cover plate 23 may be made of waterproof material, for example, PC/ABS (Polycarbonate/ABS Alloy, Polycarbonate/acrylonitrile butadiene styrene).

It is understood that, referring to fig. 1 and 2 again, one end of the fixing bracket 600 is used to connect to the housing 200, and the other end is used to fix the manhole cover 500. The fixing bracket 600 includes a first mounting portion 610, a connecting portion 620, and a second mounting portion 630.

The first installation part 610 is used for fixing the well lid 500, and a plurality of positioning holes 611 are formed in the first installation part 610. The positioning holes 611 are disposed corresponding to the ventilation holes 510 of the manhole cover 500. It can be understood that, for example, a bolt 612 can be sequentially inserted through the ventilation hole 510 and the corresponding positioning hole 611, and then a nut 613 is used to cooperate with the bolt 612. Thus, the manhole cover 500 is fixed to the fixing bracket 600.

It is understood that the well cover 500 includes a first rib 520 and a second rib 530. The first rib 520 is located at the middle of the manhole cover 500. The second rib 530 is provided in plurality, and one end thereof is connected to the first rib 520 and the other end thereof is connected to the edge of the manhole cover 500. An accommodating portion 540 is formed between adjacent second rib portions 530, and the first mounting portion 610 is disposed in the accommodating portion 540.

In one embodiment, the manhole cover 500 is circular, and the receiving portion 540 has a fan shape. The first mounting portion 610 has a top edge 614, a bottom edge 615, and two side edges 616. The top edge 614 is curved, and each end of the top edge 614 is connected to one end of one of the side edges 616. The ends of the bottom edge 615 are each connected to the other end of one of the side edges 616. The top edge 614, one of the side edges 616, the bottom edge 615, and the other side edge 616 are sequentially connected end to form the first mounting portion 610, and the first mounting portion 610 is also substantially fan-shaped. As such, the first mounting portion 610 may be disposed within the receiving portion 540.

A plurality of matching holes 631 have been seted up on the second installation portion 630, matching hole 631 corresponds mounting hole 216 sets up for connect fixed bolster 600 with well lid monitor 100. The fitting hole 631 may be a threaded hole, for example.

One end of the connecting portion 620 is connected to the first mounting portion 610, and is substantially L-shaped when being engaged with the first mounting portion 610. The other end of the connecting portion 620 is connected to the second mounting portion 630, and is also substantially L-shaped with the second mounting portion 630. The second mounting portion 630 extends away from the first mounting portion 610.

It is understood that the well cover 500 includes a first rib 520. The first rib 520 has a first surface 521 and a second surface 522, and an L-shaped structure formed by the connecting portion 620 and the second mounting portion 630 is clamped on the first rib 520, so that the second mounting portion 630 is tightly attached to the first surface 521, and the connecting portion 620 is tightly attached to the second surface 522. By configuring the fixing bracket 600 to have an L shape capable of being clamped on the first rib 520, the well lid monitor 100 can be more closely fixed to the well lid 500.

It is understood that, in this embodiment, an end of the second mounting portion 630 of the fixing bracket 600, which is away from the connecting portion 620, is substantially rounded to place and mount the housing 200. However, in other embodiments, the end of the second mounting portion 630 of the fixing bracket 600 away from the connecting portion 620 may have other shapes, such as a shape that can be disposed in the mounting groove 234.

Referring again to fig. 3, the manhole cover monitor 100 further includes a printed circuit board 400. The printed circuit board 400 is accommodated in the accommodating space 25 formed by the housing 21 and the cover plate 23.

Referring to fig. 6, the manhole cover monitor 100 includes a control module 110, a first communication module 120 and a detection module 130. The first communication module 120 and the detection module 130 are electrically connected to the control module 110. The first communication module 120 is used to implement communication connection between the manhole cover monitor 100 and an external device, that is, to implement communication connection to the outside. The detection module 130 is used for monitoring various parameters of the manhole cover 500. The control module 110 is configured to process the parameters monitored by the detection module. The control module 110 may be a microprocessor. For example, in the present embodiment, the control module 110 is a bluetooth chip.

In the embodiment of the present application, the first communication module 120 uses a narrowband cellular Internet of Things (NB-IOT) technology. The first communication module 120 includes an NB module unit 121, an NB antenna unit 123, and a SIM card unit 122. The NB module unit 121 is electrically connected to the control module 110, and the NB antenna unit 123 is electrically connected to the NB module unit 121. The NB antenna unit 123 is used to cooperate with the NB module unit 121 to receive and transmit radio frequency signals, thereby implementing multiband wireless communication. The SIM card unit 122 is electrically connected to the NB module unit 121, for example, embedded in the NB module unit 121, and is used to obtain communication services of an operator.

In an embodiment of the present application, the detection module 130 includes an attitude sensor 131. The attitude sensor 131 is electrically connected to the control module 110, and is configured to sense an angle change of the manhole cover 500, and obtain an angle change value of the manhole cover 500 after the angle change is converted by the control module 110. The control module 110 compares the angle variation value with a preset value, and if the control module 110 determines that the angle variation value exceeds a preset value, it determines that the well lid 500 is in an abnormal state. It can be understood that the preset values may be multiple, the abnormal state may be a sinking/inclining state, a tilting state, an opening state, and the like, and different preset values correspond to different abnormal states, for example, when the angle change value exceeds 5 °, the control module 110 determines that the manhole cover 500 is in the sinking/inclining state, when the angle change value exceeds 15 °, the control module determines that the manhole cover 500 is in the tilting state, and when the angle change value exceeds 60 °, the control module determines that the manhole cover 500 is in the opening state. It can be understood that the size and the number of the preset values can be set according to specific requirements, and are not limited herein.

It is understood that the posture sensor 131 is a sensor capable of detecting the angle change of the manhole cover 500. For example, the attitude sensor 131 may be one or more of a gravity sensor, a three-axis gyroscope, a three-axis acceleration sensor, and the like. In the present embodiment, the attitude sensor 131 is taken as an acceleration sensor for example. When the attitude sensor 131 detects that the acceleration of the manhole cover 500 changes, the attitude sensor 131 sends a first interrupt signal to the control module 110. The control module 110 starts to calculate the acceleration components of the attitude sensor 131 in each direction after receiving the first interrupt signal, thereby calculating the angle change value. The control module 110 further determines whether the manhole cover 500 is in an abnormal state and/or what state according to the angle variation value and the preset value.

It can be understood that when the control module 110 determines that the manhole cover 500 is in an abnormal state, the control module 110 may send a first warning signal to an internet of things platform through the NB module unit 121.

In one embodiment, the manhole cover monitor 100 can also detect whether the manhole cover 500 is in a loose state (e.g., in a state of abnormal sound, bump, shake, etc.) through the attitude sensor 131 and the control module 110. For example, the control module 110 is provided with a preset acceleration value. When the attitude sensor 131 senses that the current acceleration value exceeds the preset acceleration value, the control module 110 increments a built-in vibration counter (not shown) by 1. The control module 110 can periodically (for example, once in 24 hours) transmit the count of the vibration counter to the internet of things platform through the NB module unit 121. If the accumulated number of times of the vibration counter reaches a certain value, for example, 100 times, the control module 110 determines that the manhole cover 500 is currently in a loose state and generates a second alarm signal, and the NB module unit 121 transmits the second alarm signal to the internet of things platform.

In an embodiment of the present application, the well lid monitor 100 further comprises a second communication module 124. The second communication module 124 is a wireless communication module, and may be a bluetooth module, for example. In this embodiment, the second communication module 124 is a bluetooth module for example. The second communication module 124 may be separately provided and electrically connected to the control module 110. The second communication module 124 may also be directly embedded in the control module 110. The second communication module 124 can be connected to an external terminal via bluetooth, so that an installer can set and view various parameters of the well lid monitor 100 via the external terminal. For example, the uploading frequency of each item of data of the NB module unit 121 may be set, and the serial number of the manhole cover monitor 100, the signal strength of the first communication module 120 and the second communication module 124, and the like may be checked.

Referring to fig. 3 and 6, in an embodiment of the present application, the manhole cover monitor 100 further includes a water overflow monitoring interface 137. The overflow monitoring interface 137 is electrically connected to an overflow sensor 132. The overflow sensor 132 may be used to monitor whether the manhole cover 500 is flooded. The overflow sensor 132 may be, for example, a water level electrode, and it is determined whether the well cover 500 overflows by whether the water level electrode is short-circuited. Referring to fig. 4, the electrode through hole 213 shown in fig. 4 is used for installing the overflow sensor 132, for example, the water level electrode.

Specifically, the water level electrodes include two water level electrodes, and are disposed on the well lid monitor 100, and the two water level electrodes are in an open circuit state when there is no contact therebetween. When the underground water level continuously rises until the underground water level contacts the water level electrodes of the well lid monitor 100, the two water level electrodes are short-circuited through water. At this time, the overflow sensor 132 issues a second interrupt signal to the control module 110. The control module 110 sends a third alarm signal to the internet of things platform through the NB module unit 121 within a certain time (for example, within 10 seconds).

When the underground water level continuously drops until the underground water level is separated from the water level electrode of the well lid monitor 100, the water level electrode is opened. At this time, the control module 110 will send a third alarm release signal to the internet of things platform through the NB module unit 121 within a certain time (for example, within 1 minute).

In a specific embodiment, the manhole cover monitor 100 is in an inactivated state when shipped from a factory. The first communication module 120 and the detection module 130 in the deactivated state are in a low power consumption sleep state. When the manhole cover monitor 100 is installed, the two water level electrodes are connected by a metal wire, so that the two water level electrodes are short-circuited for a certain time (for example, disconnected after 5 seconds), and the second communication module 124 can be successfully activated. Then, the manhole cover monitor 100 is connected to a terminal through the second communication module 124 for parameter setting and installation operations, for example, using a mobile phone-installed APP. After the installation is completed, the well lid monitor 100 is successfully activated, and the first communication module 120 and the detection module 130 both work normally.

It can be understood that, by setting the dormant state before use, the well lid monitor 100 can be kept in a low power consumption state all the time from factory delivery to formal use, which is beneficial to storage and transportation.

In one embodiment, the well lid monitor 100 is provided with an expansion interface 138. The expansion interface 138 is electrically connected to the control module 110 for connecting other function modules, so that the functions of the manhole cover monitor 100 can be expanded. For example, the well lid monitor 100 may be connected to one or more of the water level monitoring unit 133, the temperature sensor 134, the gas sensor 135, and the positioning unit 136 through the expansion interface 138. A part of the above-mentioned functional module (for example, the water level monitoring unit 133) is located outside the housing 21 (see fig. 4), and can be connected to the expansion interface 138 through the connection part 219 (see fig. 4).

Specifically, when the manhole cover monitor 100 is connected to the water level monitoring unit 133 through the expansion interface 138, whether the water level under the shaft reaches the alarm level may be monitored through the water level monitoring unit 133. For example, the water level monitoring unit 133 is a float switch, and the float switch is electrically connected to the control module 110 through a wire and an expansion interface 138. A weight block is disposed between the float switch and the control module 110. The balancing weight can enable the float switch to be connected with the circuit when the water level rises, and enable the float switch to be disconnected with the circuit when the water level falls.

Specifically, when the water level in the well rises, the float switch rises together with the water level. When the water level rises to a position exceeding the balancing weight, the floating ball switch is switched from an off state to an on state, wherein the position of the balancing weight is the warning water level. When the float switch is in an on state, the control module 110 sends a fourth warning signal to the internet of things platform through the NB module unit 121. When the underground water level descends, the float switch descends along with the water level. When the water level is lower than the position of the counterweight block, the float switch is switched from the on state to the off state, and the control module 110 sends a fourth warning release signal to the internet of things platform through the NB module unit 121.

In a specific embodiment, the well lid monitor 100 is also electrically connected to the temperature sensor 134 and the gas sensor 135 via the expansion interface 138. The temperature sensor 134 is used to sense the temperature downhole, and the gas sensor 135 is used to sense the gas concentration downhole. By providing the temperature sensor 134 and the gas sensor 135, downhole temperature and gas concentration can be monitored in real time.

In one embodiment, the well lid monitor 100 is also electrically connected to the positioning unit 136 via the expansion interface 138. The positioning unit 136 can obtain the geographic position information of the well lid 500, and sends the geographic position information to the internet of things platform through the NB module unit 121. Through setting up positioning unit 136 can monitor well lid 500's position at any time, also conveniently passes through when well lid 500 loses geographical position information finds.

Referring again to fig. 3 and 4, in one embodiment, the manhole cover monitor 100 further includes an expansion joint 300. The extension connector 300 may have one end electrically connected to the extension interface 138 through the connection port 220 and the other end for electrically connecting to an external sensor, such as one or more of the water level monitoring unit 133, the temperature sensor 134, the gas sensor 135 and the positioning unit 136, so that the function of the manhole cover monitor 100 is extended.

Referring to fig. 3 again, in the present embodiment, the control module 110, the first communication module 120, the detection module 130, the overflow monitoring interface 137 and the expansion interface 138 are disposed on the printed circuit board 400. For example, the NB module unit 121 of the control module 110, the first communication module 120, and the posture sensor 131 of the detection module 130 are disposed on one surface of the printed circuit board 400. The overflow monitoring interface 137, the expansion interface 138, the SIM card unit 122 and the NB antenna unit 123 of the detection module 130 and the first communication module 120 are disposed on the other surface of the printed circuit board 400.

Referring again to fig. 3 and 6, in one embodiment, the manhole cover monitor 100 further includes a power supply unit 140. The power supply unit 140 is electrically connected to the control module 110, and is configured to supply power to the control module 110, the first communication module 120, and the detection module 130. It is understood that in one embodiment, the power supply unit 140 is housed inside the housing 21. Specifically, the power supply unit 140 may be adhered to a side of the cover plate 23 opposite to the top surface 231.

Referring to fig. 1 and 2, in the present application, a positioning hole 611 corresponding to the conventional air hole 510 of the well cover 500 is disposed on the fixing bracket 600, so that one end of the fixing bracket 600 is fixed below the well cover 500. The other end of the fixing bracket 600 is installed with the well lid monitor 100, so that the well lid 500 and the well lid monitor 100 are fixed together. Thus, the installation steps of the well lid monitor 100 can be greatly simplified, and the installation time can be saved.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not used as limitations of the present application, and that suitable modifications and changes of the above embodiments are within the scope of the claims of the present application as long as they are within the spirit and scope of the present application.

Claims

1. A fixing bracket for securing a well lid monitor to a well lid, the fixing bracket comprising:

the first installation part is used for connecting the well lid, a plurality of positioning holes are formed in the first installation part, and the positioning holes are arranged corresponding to the air holes in the well lid;

a connecting portion having a first end and a second end, the first end being connected to the first mounting portion; and

the second installation department for the installation the well lid monitor, the second installation department connect in the second end.

2. The fixed bracket of claim 1, wherein the connecting portion cooperates with the first mounting portion to form an L-shape, and the second mounting portion cooperates with the connecting portion to form an L-shape, the second mounting portion extending in a direction opposite the first mounting portion.

3. The securing bracket of claim 1, wherein the well lid has a receiving portion, the first mounting portion being disposed within the receiving portion.

4. The mounting bracket of claim 1 wherein said first mounting portion is fan-shaped having a top edge, a bottom edge and two side edges, said top edge being arcuate, said top edge having ends each connected to one end of one of said side edges and said bottom edge having ends each connected to the other end of one of said side edges.

5. The fixing bracket of claim 1, wherein the well lid monitor has a mounting hole, and the second mounting portion has a mating hole, the mating hole corresponding to the mounting hole for mating with the mounting hole to connect the fixing bracket and the well lid monitor.

6. A monitoring device comprising a manhole cover monitor, wherein the manhole cover monitor comprises a housing and a cover plate, the cover plate being detachably assembled with the housing, the monitoring device further comprising a fixing bracket according to any one of claims 1 to 5, the fixing bracket being configured to fix the manhole cover monitor to a manhole cover.

7. The monitoring device of claim 6, wherein the housing includes a bottom surface, an outer sidewall, and an inner sidewall, the bottom surface is a horizontal surface, and the outer sidewall and the inner sidewall are disposed at a periphery of the bottom surface in an arc.

8. The monitoring device of claim 7, wherein the outer sidewall is provided with a mounting hole; the apron includes the top surface, the top surface is circular, the breach that a plurality of equidistant set up is seted up along circumference in the edge of top surface, the breach corresponds each the mounting hole sets up for with the mounting hole cooperation is in order to install the fixed bolster.

9. The monitoring device of claim 7, wherein the outer sidewall is spaced apart from the inner sidewall, a gap is formed between the outer sidewall and the inner sidewall, and a seal is disposed on a portion of the inner sidewall adjacent to the cover plate.