Inspection well cover monitoring and early warning device

Abstract

The utility model belongs to the technical field of municipal facilities, and particularly discloses an inspection well cover monitoring and early warning device which comprises an installation support arranged on the inner wall of an inspection well and a well cover base arranged on the top of the inspection well. A control box is arranged in the mounting bracket; a well lid body is arranged on the well lid base; a plurality of well lid monitoring assemblies are evenly arranged on the inner wall of the well lid base along the circumferential side, and the well lid monitoring assemblies are connected with the control box and used for monitoring the buckling state of the well lid body in real time and sending the buckling state to the control box. A buzzer is arranged on the inner wall of the well lid body and connected with the control box. The control box timely starts the buzzer based on the buckling state of the well lid body. The well lid monitoring assembly is arranged on the side wall of the well lid base, whether the well lid body is normally buckled or not is judged according to the pressure change of the well lid body on the peripheral side of the well lid base, the control box controls the buzzer to conduct early warning and sends an early warning signal to the background server, and maintenance personnel can be arranged in time for troubleshooting.

Description

TECHNICAL FIELD

[0001] The utility model belongs to municipal facilities technical field, especially relate to a monitoring and early warning device for inspection chamber cover. BACKGROUND

[0002] In order to meet the drainage requirement of city, in the process of city construction, multiple inspection chambers are planned, and the safety protection is carried out by setting the well lid on the top of the inspection chamber, but the missing or damage of the well lid can cause the pedestrian to fall by accident, for example, on some urban roads, due to the theft or damage of the well lid, many accidents of pedestrians falling into the well have occurred, causing serious personal injury and even endangering life.

[0003] With the development of modern technology, the municipal department can monitor the state of the well lid in real time through the well lid monitoring system, and once the well lid is displaced, tilted or missing, the system can immediately issue an alarm to remind the relevant department to handle in time, thereby effectively avoiding the occurrence of the pedestrian falling accident, for example, the Chinese patent with publication number CN221056679U discloses a well lid monitoring device with early warning function, which is provided with an ultrasonic receiver and an ultrasonic transmitter, and whether the well lid is lost is monitored in real time through ultrasonic waves, and the lifting plate and LED lamp bead play a warning role. However, in the scheme, when the well lid is detected by ultrasonic waves, ultrasonic waves are sent in real time, and the energy consumption is high, and most of the well lids of the inspection chambers in the city cannot be connected to the power supply, and the monitoring of the well lid generally adopts battery power supply, and the long-term endurance of the battery cannot be guaranteed by using the above scheme. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects in the prior art, and provides a monitoring and early warning device for inspection chamber cover.

[0005] The utility model provides a monitoring and early warning device for inspection chamber cover, including installation support of setting in the inner wall of inspection chamber and well lid base of setting in the top of inspection chamber,

[0006] The control box is arranged in the installation support, and the control box is connected with the background server signal,

[0007] The well lid base is provided with the well lid body, and the well lid body is rotationally connected with the well lid base through the hinge seat,

[0008] The inner wall of the well lid base is uniformly provided with a plurality of well lid monitoring components along the circumferential side, the well lid monitoring components are connected with the control box, and the well lid body is used for real-time monitoring the buckling state and sending to the control box,

[0009] The inner wall of the well lid body is provided with a buzzer, and the buzzer is connected with the control box; the control box starts the buzzer in time based on the buckling state of the well lid body.

[0010] Further, the well lid base inner wall is uniformly provided with a plurality of blind holes, the well lid monitoring assembly comprises a pressure sensor and a spring arranged in the blind hole, one side of the pressure sensor is connected with the bottom of the blind hole, and the other side of the pressure sensor is in abutment with the spring;

[0011] The end of the spring away from the pressure sensor is provided with an abutment column, one end of the abutment column is in abutment with the spring, and the other end of the abutment column is in a circular arc structure and extends to the outside of the blind hole;

[0012] When the well lid body is buckled, the side wall of the well lid body extrudes the arc segment of each abutment column, so that the abutment column exerts pressure on the pressure sensor through the spring and generates a pressure signal.

[0013] Further, the blind hole is provided with a sliding groove near the opening end, and the abutment column is provided with a sliding block, and the sliding block is in sliding connection with the sliding groove;

[0014] The length of the sliding groove is greater than the length of the sliding block, and when the spring is in a non-compressed state, the end of the sliding block is in abutment with the side of the sliding groove close to the opening end of the blind hole.

[0015] Further, the well lid body is further provided with a liquid level sensor, and the liquid level sensor is connected with the control box.

[0016] Further, the control box is internally provided with a processor, a main control board and a storage battery, the processor and the main control board are connected, and the processor and the main control board are respectively connected with the storage battery;

[0017] Each pressure sensor and the liquid level sensor are respectively connected with the processor; the buzzer is connected with the main control board, the main control board is further connected with a communication module, and the communication module is used for communication with a background server.

[0018] Further, the storage battery and the main control board are connected through a relay;

[0019] The processor is connected with the relay, and the processor sends a low-level signal to the relay based on the pressure signal of the pressure sensor to control the switch of the relay.

[0020] Further, the main control board is an ARM main control board, the processor is an STM32L476 low-power processor, and the communication module is an LORA communication module.

[0021] Compared with the prior art, the beneficial effects of the utility model lie in:

[0022] (1) The utility model discloses a manhole cover monitoring assembly is arranged in the side wall of manhole cover base, judges whether the manhole cover body is normal buckling through the pressure change of manhole cover base periphery of manhole cover body, and connects manhole cover monitoring assembly with control box, when the manhole cover body is dislocated or missing, control box starts buzzer and sends early warning signal to the background server, realizes real -time monitoring, and can arrange maintenance personnel to check in time.

[0023] (2) The utility model discloses a pressure signal of pressure sensor is monitored to manhole cover body, when the manhole cover body is normal buckling, the pressure of the side wall of manhole cover body to each abutment column is same, i.e. the parameter of each pressure sensor is same or changes in a set range, when the manhole cover body is dislocated or missing, the parameter of one or more pressure sensors changes suddenly, thereby realizing monitoring to manhole cover body, and the accuracy of detection result is guaranteed.

[0024] (3) The utility model discloses a relay is arranged between battery and main control board, under normal circumstances, relay is in the disconnected state, and main control board does not consume electric energy, and the switch of relay is sent low level signal based on the pressure signal change of pressure sensor to the processor to control, reduce the energy consumption of control box, prolong the service life of battery. BRIEF DESCRIPTION OF DRAWINGS

[0025] The following drawings only make the illustrative explanation of the utility model, and do not use to limit the range of the utility model, wherein:

[0026] Figure 1 The utility model discloses a structure schematic view;

[0027] Figure 2 The utility model discloses a manhole cover base structure schematic view;

[0028] Figure 3 The utility model discloses a manhole cover monitoring assembly structure schematic view;

[0029] Figure 4 The utility model discloses a control box internal connection block diagram;

[0030] In the drawing: 1, inspection well;2, manhole cover base;3, hinged seat;4, manhole cover body;5, buzzer;6, mounting bracket;7, control box;8, liquid level sensor;9, manhole cover control assembly;10, blind hole;11, pressure sensor;12, spring;13, sliding slot;14, abutment column;15, sliding block;16, processor;17, main control board;18, relay;19, battery;20, communication module. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme, design method and advantages of the utility model more clear and obvious, the utility model is further described in detail below by specific embodiments combined with drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0032] As Figure 1 and Figure 2 The utility model provides a monitoring and early warning device for inspection well lid, including installation support 6 of setting in the inner wall of inspection well 1 and well lid base 2 of setting at the top of inspection well 1, installation support 6 is fixed in time, and then fixed through expansion bolt after being punched in the inner wall of inspection well 1, be provided with control box 7 in installation support 6, control box 7 is connected with background server signal, be provided with well lid body 4 on well lid base 2, well lid body 4 is connected with the rotation of hinge seat 3 of well lid base 2, and the bottom baffle of well lid base 2 bottom circumferential side extends to the axis direction, when well lid body 4 and well lid base 2 are buckled, well lid body 4 and bottom baffle abut, be provided with several well lid monitoring assemblies 9 along circumferential side in the inner wall of well lid base 2, well lid monitoring assembly 9 is connected with control box 7, for real-time monitoring well lid body 4 buckling state and sending to control box 7, still be provided with buzzer 5 in the inner wall of well lid body 4, buzzer 5 is connected with control box 7, control box 7 based on well lid body 4 buckling state timely start buzzer 5.

[0033] As Figure 3As shown, the inner wall of the well lid base 2 is uniformly provided with a plurality of blind holes 10, the well lid monitoring assembly 9 comprises a pressure sensor 11 and a spring 12 arranged in the blind hole 10, one side of the pressure sensor 11 is connected with the bottom of the blind hole 10, and the other side of the pressure sensor 11 abuts against the spring 12; the end of the spring 12 away from the pressure sensor 11 is provided with an abutting column 14, one end of the abutting column 14 abuts against the spring 12, and the other end of the abutting column 14 is in a circular arc structure and extends to the outside of the blind hole 10; when the well lid body 4 is in the buckling state, the sidewall of the well lid body 4 extrudes the arc segment of each abutting column 14 so that the abutting column 14 exerts pressure on the pressure sensor 11 through the spring 12 and generates a pressure signal; it should be noted that, due to the arrangement of the bottom baffle, when the well lid body 4 is completely buckled, the weight of the well lid body 4 and the external force applied to the top of the well lid body 4 are all borne by the well lid base 2 and the bottom baffle, so that when the well lid body 4 is completely buckled, the pressure signal of the pressure sensor 11 will not change due to the external force load applied to the top of the well lid body 4. When the well lid body 4 is normally buckled, the lateral pressure of the sidewall of the well lid body 4 on each abutting column 14 is the same, that is, the parameters of each pressure sensor 11 are the same or change within a certain range, and when the well lid body 4 is dislocated or missing, the parameters of one or more pressure sensors 11 change suddenly, so as to realize real-time monitoring of the well lid body 4 and ensure the accuracy of the detection result.

[0034] In order to ensure the stability of the abutting column 14 sliding in the blind hole, a sliding groove 13 is arranged at the position close to the opening end of the blind hole 10, a sliding block 15 is arranged on the abutting column 14, and the sliding block 15 is in sliding connection with the sliding groove 13; it should be noted that the length of the sliding groove 13 should be greater than the length of the sliding block 15, and in the non-compressed state of the spring 12, the end of the sliding block 15 abuts against the side of the sliding groove 13 close to the opening end of the blind hole 10.

[0035] In the embodiment, in order to prevent the liquid level in the well from being too high, a liquid level sensor 8 is further arranged in the inspection well 1, the liquid level sensor 8 is connected with the control box 7, and when the water level in the well rises to exceed the set position, the control box 7 can send an alarm information to the background server in real time to inform the management personnel.

[0036] As Figure 4As shown, the control box 7 is internally provided with a processor 16, a main control board 17 and a storage battery 19, the processor 16 and the main control board 17 are connected, and the processor 16 and the main control board 17 are connected with the storage battery 19 respectively; each of the pressure sensor 11 and the liquid level sensor 8 is connected with the processor 16 respectively; the buzzer 5 is connected with the main control board 17, and the main control board 17 is further connected with a communication module 20, the communication module 20 is used for communicating with a background server, wherein the main control board 17 is an ARM main control board, the processor 16 is an STM32L476 low-power processor, and the communication module 20 is an LORA communication module, the LORA communication module has the characteristics of low power consumption, can prolong the available time of the battery, and reduces the maintenance work of replacing the battery. In order to further reduce the power consumption, in the embodiment, the storage battery 19 and the main control board 17 are connected through a relay 18; the processor 16 is connected with the relay 18, and the processor 16 sends a low-level signal to the relay 18 based on the pressure signal of the pressure sensor 11 to control the switch of the relay 18. The storage battery 19 adopts a large-capacity lithium sulfonyl chloride battery, can work in the environment of-40~80℃, and through the low-power design, the battery replacement period can reach 4~5 years.

[0037] The above has described the embodiments of the utility model, the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A manhole cover monitoring and early warning device, characterized in that: It comprises a mounting bracket (6) arranged on the inner wall of a manhole (1) and a manhole cover base (2) arranged on the top of the manhole (1); A control box (7) is provided in the mounting bracket (6), and the control box (7) is connected to the backend server signal; A manhole cover body (4) is provided on the manhole cover base (2), and the manhole cover body (4) is rotatably connected to the manhole cover base (2) via a hinge seat (3); A plurality of manhole cover monitoring components (9) are evenly arranged along the circumference of the inner wall of the manhole cover base (2), and the manhole cover monitoring components (9) are connected to the control box (7) and are used to monitor the fastening state of the manhole cover body (4) in real time and send the information to the control box (7); A buzzer (5) is provided on the inner wall of the manhole cover body (4), and the buzzer (5) is connected to the control box (7); the control box (7) activates the buzzer (5) in a timely manner based on the buckled state of the manhole cover body (4); The control box (7) is provided with a processor (16), a main control board (17) and a battery (19), the processor (16) and the main control board (17) are connected, and the processor (16) and the main control board (17) are respectively connected to the battery (19); The battery (19) and the main control board (17) are connected via a relay (18); The inner wall of the manhole cover base (2) is evenly provided with a plurality of blind holes (10); the manhole cover monitoring assembly (9) comprises a pressure sensor (11) and a spring (12) arranged in the blind hole (10); one side of the pressure sensor (11) is connected to the bottom of the blind hole (10), and the other side of the pressure sensor (11) is in contact with the spring (12); The processor (16) is connected to the relay (18), and the processor (16) sends a low-level signal to the relay (18) based on the pressure signal of the pressure sensor (11) to control the switching of the relay (18).

2. A manhole cover monitoring and early warning device according to claim 1, characterized in that: An abutting column (14) is provided at one end of the spring (12) away from the pressure sensor (11), one end of the abutting column (14) abuts against the spring (12), and the other end of the abutting column (14) is an arc structure and extends to the outside of the blind hole (10); When the manhole cover body (4) is in a buckled state, the side wall of the manhole cover body (4) squeezes the arc segment of each abutting column (14) so ​​that the abutting column (14) applies pressure to the pressure sensor (11) through the spring (12) and generates a pressure signal.

3. The manhole cover monitoring and early warning device according to claim 2, characterized in that: The blind hole (10) is provided with a sliding groove (13) near the opening end, and a slider (15) is provided on the abutting column (14), and the slider (15) is slidably connected to the sliding groove (13); The length of the slide groove (13) is greater than the length of the slider (15); when the spring (12) is in a non-compressed state, the end of the slider (15) abuts against the side of the slide groove (13) close to the opening end of the blind hole (10).

4. A manhole cover monitoring and early warning device according to claim 3, characterized in that: A liquid level sensor (8) is also provided inside the manhole (1), and the liquid level sensor (8) is connected to the control box (7).

5. The manhole cover monitoring and early warning device according to claim 4, characterized in that: Each of the pressure sensors (11) and the liquid level sensor (8) is connected to the processor (16) respectively; the buzzer (5) is connected to the main control board (17), and the main control board (17) is also connected to a communication module (20), and the communication module (20) is used to communicate with a background server.

6. The manhole cover monitoring and early warning device according to claim 5, characterized in that: The main control board (17) is an ARM main control board, the processor (16) is an STM32L476 low-power processor, and the communication module (20) is a LORA communication module.

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