CN220230566U - Manhole cover detection device - Google Patents

Abstract

The utility model discloses a well lid detection device which comprises a sensing module and is characterized in that the sensing module comprises an inclination sensor and a photosensitive sensor, wherein the inclination sensor is arranged on a well lid and used for detecting the inclination state of a well lid, and the photosensitive sensor is used for detecting the light intensity in the well. In order to prevent false alarm caused by a single inclination angle sensor, the detection terminal with superimposed light sensation can realize comprehensive judgment on the well lid state, so that the false alarm rate is reduced; the condition that water logging detects, light sense detects and slope detects the combination is, can more detect the manhole cover slope that is caused by the storm or vehicle vibrations misinformation, in time arrange the maintenance, avoid causing unnecessary injury and loss.

Description

Manhole cover detection device

Technical Field

The utility model relates to the technical field of well covers, in particular to a well cover detection device.

Background

Well lid for cover the well head, for example the well lid of most common city sewer well has the function of protection sewer well and preventing people or thing drop, consequently, the safety of this people's lives and properties of the good and bad direct relation of well lid, however, because these well lids are more, distribute in the each corner in city, the condition of these well lids is difficult timely discovery, among the prior art, some adoption set up the sensor that can detect well lid inclination state on the well lid, but sometimes the trouble of well lid is not slope but damage, for example well lid fracture or appear the hole, inclination sensor can not detect this situation this moment, thereby cause the potential safety hazard.

In addition, sometimes the vehicle presses the well lid and can cause the well lid vibration too big, can cause the false alarm of sensor, and too much false alarm not only can cause the increase of human detection cost, and the alarm information of sensor need be sent through wireless mode, wireless information transmission device and the sensor that sets up on every well lid usually need set up independent battery power supply, so, too much false alarm still can cause the waste of detection and communication device power, leads to the frequent battery that changes.

Therefore, how to realize comprehensive detection of the well lid state becomes a technical problem to be solved in the industry.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a well lid detection device which can realize comprehensive detection of the well lid state and avoid false alarm.

The technical scheme includes that the well lid detection device comprises a sensing module and is characterized in that the sensing module comprises an inclination sensor and a photosensitive sensor, wherein the inclination sensor is arranged on a well lid and used for detecting the inclination state of the well lid, and the photosensitive sensor is used for detecting the light intensity in the well.

In some embodiments, the sensor further comprises a housing fixed inside the well cover, the sensing module is arranged in the housing, a mounting hole communicated with the external space is formed in the housing, and the photosensitive element of the photosensitive sensor is arranged in the mounting hole.

In certain embodiments, the sensing module further comprises a gas sensor for detecting a gas constituent within the well, the gas sensor disposed within the housing, a waterproof vent valve secured to the housing, the gas sensor in gaseous communication with the well through the waterproof vent valve.

In some embodiments, the casing is provided with at least two electrodes connecting the inside and the outside of the casing, the electrodes are arranged at intervals, the electrodes are arranged below the casing and towards the liquid level in the well, and the casing is internally provided with a conductivity detection device for detecting the change of the resistance between the electrodes.

In some embodiments, the inner side end of the electrode is provided with a screw hole, and the electric conduction detection device comprises a circuit board, wherein the circuit board is fixed on the screw hole through a screw, and the electric conduction detection device is electrically connected with the electrode through the screw.

In some embodiments, the shell comprises a face shell for connecting with the inner side surface of the well lid and a rear shell with a cavity, wherein a power module, a control module and a wireless communication module are arranged in the cavity.

In some embodiments, the rear shell is provided with a drooping floating ball liquid level meter, the floating ball liquid level meter comprises a cable, the cable is connected with a floating ball, a mass block is connected between the floating ball and the shell, the floating ball ascends and descends along with the ascending and descending of liquid in the well, and an inclined switch is arranged inside the floating ball.

In certain embodiments, the float gauge is electrically connected to the controller through a waterproof terminal located on the rear housing.

In some embodiments, a touch key is disposed on the outside of the rear case, and the touch key is electrically connected with the control module.

In some embodiments, the surface shell and the rear shell opening edge are sealed by a sealing ring, and a water drain groove is arranged on the rear shell outside the sealing ring.

Compared with the prior art, the utility model has the following beneficial effects:

1. in order to prevent false alarm caused by a single inclination angle sensor, the detection terminal with superimposed light sensation can realize comprehensive judgment on the well lid state, so that the false alarm rate is reduced; the condition that water logging detects, light sense detects and slope detects the combination is, can more detect the manhole cover slope that is caused by the storm or vehicle vibrations misinformation, in time arrange the maintenance, avoid causing unnecessary injury and loss.

2. According to the utility model, the electrodes connected with the inside and the outside of the shell are arranged on the shell, so that detection and early warning of water accumulation in the well are realized, and the electrodes are embedded in the bottom of the shell, so that false alarm caused by rainwater and the like is avoided.

3. The waterproof ventilation valve is fixed on the shell, and the gas sensor is communicated with gas in the well through the waterproof ventilation valve, so that water and dust cannot enter the waterproof ventilation valve.

Drawings

The present utility model will now be described in detail with reference to specific embodiments and drawings, which are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model. The drawings illustrate generally, by way of example and not limitation, embodiments discussed herein. Wherein:

fig. 1 is a schematic view of a tilting state of a manhole cover with a housing installed.

Fig. 2 is a schematic view of the housing.

Fig. 3 is a schematic top view of fig. 2.

Fig. 4 is a schematic cross-sectional view of a housing in which a photosensor is mounted.

Fig. 5 is a schematic bottom view of fig. 4.

Fig. 6 is a schematic cross-sectional view of a housing with two metal cylinders mounted.

Figure 7 is a schematic cross-sectional view of a housing with a waterproof vent valve and waterproof terminals mounted.

Fig. 8 is a schematic bottom view of fig. 7.

Fig. 9 is an exploded view of fig. 8.

Fig. 10 is a schematic view of a floating ball level gauge.

FIG. 11 is a schematic view of the floating ball floating up.

In the figure, 1, a face shell; 2. a rear case; 3. installing hole sites; 4. a seal ring; 5. a water drain tank; 6. a set screw; 7. a main board; 8. 18650 battery; 9. a photosensitive sensor; 10. platelets of the photosensitive elements; 11. a combustible gas sensor; 12. a waterproof vent valve; 13. a plastic nut; 14. a metal cylinder; 15. a screw; 16. a cable; 17. a floating ball; 18. a mass block; 19. a touch key; 20. a well cover; 21. waterproof binding post.

Detailed Description

The following are specific examples of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these examples, and the following embodiments do not limit the utility models according to the claims. Furthermore, all combinations of features described in the embodiments are not necessarily essential to the inventive solution.

The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.

Example 1

As shown in fig. 1, a manhole cover detection device comprises a sensing module, the sensing module includes an inclination sensor that is used for detecting the inclination state of a manhole cover 20 and a photosensitive sensor 9 that is used for detecting the light intensity in the manhole, the inclination sensor can be, for example, an inclination switch or a gyroscope, and the inclination angle of the manhole cover 20 is calculated by detecting the inclination angle of the gyroscope on a main board 7, when the inclination angle of the manhole cover 20 exceeds a software set value, a detection terminal transmits an alarm signal, so that municipal departments can manage outdoor piping lane conveniently, and the state of the urban manhole cover 20 can be acquired at any time.

The photosensitive sensor 9 can be a photosensitive resistor, and can judge the state of the well lid 20 by detecting the brightness change around, when the well lid 20 is covered on a well mouth, the light intensity in the well is smaller, when the well lid 20 is damaged, external light enters the well, so that the light intensity received by the photosensitive sensor 9 becomes larger, when the change is detected, the well lid 20 is proved to be damaged in a large area or the well lid 20 is shifted, and at the moment, the corresponding warning device can send warning information, so that the safety accident is avoided, and the timely maintenance is facilitated.

In the use process, because the vehicle overflows in the passing or rainy days, the inclination angle sensor can cause the vibration of the well lid 20 to be easy to report by mistake, and the detection terminal with the superimposed light sense can comprehensively judge in two angles, so that the false alarm rate is reduced;

the condition that water logging detects, light sense detects and incline detects the combination is, can more detect the manhole cover 20 slope or the vehicle vibrations misinformation that is caused by the heavy rain, in time arrange the maintenance, avoid causing unnecessary injury and loss.

As shown in fig. 1, 2, 3, 4 and 4, the well lid is further provided with a shell fixed on the inner side of the well lid 20, the shell comprises a face shell 1 connected with the inner side surface of the well lid 20 and a rear shell 2 provided with a cavity, the face shell 1 and the rear shell 2 are locked by using a fixing screw 6, only three mounting hole sites 3 are reserved on the face shell 1, the face shell 1 is fixed on the well lid 20 by using an expansion screw, the probability of mistakenly disassembling the screw by constructors is reduced, and the protection effect is effectively ensured. The face shell 1 with seal through sealing washer 4 between the 2 mouthfuls of backshell, be provided with three water drain groove 5 on backshell 2 in the outside of sealing washer 4, avoid sealing washer 4 outside long-time ponding, corrode casing and rubber circle, influence product life. The structural form of the double sealing rings 4 is adopted between the face shell 1 and the rear shell 2, so that the gluing mode can be avoided, namely, the whole product can meet the IP68 protection requirement. After the battery 8 is maintained and replaced, the protection level is not affected, and the face shell 1 is connected with the rear shell 2 through fixing screws 6 at the edge.

The intelligent power supply is characterized in that a power supply module, a control module and a wireless communication module are further arranged in the cavity, the control module, the wireless communication module and the inclination sensor are arranged on the main board 7, the power supply module adopts three sections of 18650 batteries 8, and the replacement is convenient while the longer service cycle is ensured. By adopting the NB-IoT low-power-consumption wide area network technology, the built-in antenna and the battery supply are adopted to intelligently monitor the running state of the well lid 20 and alarm abnormally in real time, the NB-IoT emission needs higher power consumption, the large-capacity battery causes the overlarge size of the detection terminal, the small-capacity battery causes the too short service cycle of the detection terminal, and a large amount of resources are wasted. By adopting the NB-IoT low-power-consumption wide area network technology, real-time data and equipment information can be checked at a mobile phone end and a computer end, and functions of alarming and resetting of a command control terminal, setting a terminal inclination angle and the like can be issued.

The sensor module is arranged in the shell so as to be favorable for waterproofing and protecting the sensor, a mounting hole communicated with an external space is formed in the shell, and a photosensitive element of the photosensitive sensor 9 is arranged in the mounting hole so as to conveniently detect light in a well. The embodiment is just used, the photoresistor is sealed in the mounting hole by using transparent epoxy resin, the small plate 10 with the photoresistor and the shell are sealed by using the transparent epoxy resin, so that the IP68 protection requirement can be met, the photoresistor can detect the surrounding brightness change at any time, and the light transmittance and the IP68 protection requirement are guaranteed to the greatest extent.

As shown in fig. 7, 8 and 9, the sensing module further comprises a combustible gas sensor 11 for detecting the gas composition in the well, so as to be used for detecting the combustible gas in the well, for example, whether methane exceeds the standard, wherein the gas sensor is arranged in the shell, a waterproof ventilation valve 12 is fixed on the shell, the gas sensor is communicated with the gas in the well through the waterproof ventilation valve 12, the waterproof ventilation valve has a protection level of IP68, water and dust cannot enter the waterproof ventilation valve, and the gas can enter. The waterproof ventilation valve is assembled on the rear shell 2 through the sealing ring 4 and the plastic nut 13, so that water can not enter the detection terminal through a gap between the waterproof ventilation valve and the rear shell 2. The combustible gas sensor 11 is fixed in the inside round muscle position of backshell 2 to the height in muscle position is higher than combustible gas sensor 11, fills epoxy at combustible gas sensor 11 rear portion and muscle position inside, can further guarantee that outside water can not get into inside the detection terminal.

As shown in fig. 6, at least two electrodes connected with the inside and the outside of the casing are arranged on the casing, the electrodes are arranged at intervals, the electrodes are arranged below the casing and face the liquid level in the well, a conductivity detection device for detecting the change of the resistance between the electrodes is arranged in the casing, the electrodes specifically adopted in the embodiment are two metal cylinders 14 embedded in the rear casing 2, screw holes are formed in the inner side end parts of the metal cylinders 14, the conductivity detection device comprises a circuit board, the circuit board is fixed on the screw holes through screws 15, and the conductivity detection device is electrically connected with the metal cylinders 14 through the screws 15. When the end parts of the outer sides of the two metal cylinders 14 are submerged by water accumulated in the well, the water accumulated in the well causes the two metal cylinders 14 to be short-circuited, the conductivity detection device detects the short circuit at the two ends, and the control module sends out alarm information.

As shown in fig. 10 and 11, a sagging floating ball level gauge is arranged outside the rear shell 2, the floating ball level gauge comprises a cable 16, the cable 16 is connected with a floating ball 17, a mass block 18 is connected between the floating ball 17 and the shell, the floating ball 17 ascends and descends along with the ascending and descending of the liquid in the well, and an inclined switch is arranged inside the floating ball 17. The length of the cable 16 is set according to the water level detection requirement, under the condition of no water, the direction of the floating ball 17 is vertical downwards, when water overflows to the floating ball 17, the direction of the floating ball 17 is changed from downwards to upwards, an internal tilt switch of the floating ball 17 is opened, and a signal is transmitted to the control module, so that a water level alarm is sent. The floating ball liquid level meter is electrically connected with the controller through a waterproof wiring terminal 21 positioned on the rear shell 2, and an IP68 waterproof aviation wiring terminal is adopted in the embodiment.

The outside of the rear shell 2 is provided with a touch key 19, and the touch key 19 is electrically connected with the control module. The touch pad of the touch key 19 is glued inside the rear case 2 and corresponds to the contact point of the finger of the external touch key 19, so as to set the setting in the case by the touch key 19.

Although some terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model. The order of execution of the operations, steps, and the like in the apparatuses and methods shown in the specification and the drawings may be any order as long as the order is not particularly limited, and the output of the preceding process is not used in the following process. The use of similar ordinal terms (e.g., "first," "then," "second," "again," "then," etc.) for convenience of description does not necessarily imply that they are necessarily performed in such order.

It will be appreciated by those of ordinary skill in the art that all directional references (e.g., above, below, upward, downward, top, bottom, left, right, vertical, horizontal, etc.) are descriptive of the drawings to aid the reader in understanding, and do not denote (e.g., position, orientation, use, etc.) limitation of the scope of the utility model defined by the appended claims, only for convenience of description and simplicity of description, and unless otherwise indicated, these orientation terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, the orientation terms "inside, outside" referring to the inside and outside of the profile of the respective component itself.

Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" may include both orientations of "above" and "below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Additionally, some ambiguous terms (e.g., substantially, certain, generally, etc.) may refer to slight imprecision or slight deviation of conditions, amounts, values, or dimensions, etc., some of which are within manufacturing tolerances or tolerances. It should be noted that, the terms "first," "second," and the like are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, so they should not be construed as limiting the scope of the present application.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The utility model provides a well lid detection device, includes sensing module, its characterized in that, sensing module is including setting up the inclination sensor that is used for detecting well lid inclination and the photosensitive sensor that is used for detecting the light intensity in the well on the well lid.

2. The manhole cover detection device according to claim 1, further comprising a housing fixed inside the manhole cover, wherein the sensor module is disposed in the housing, a mounting hole communicating with an external space is formed in the housing, and a photosensor of the photosensor is disposed in the mounting hole.

3. The well lid detection device of claim 2, wherein the sensing module further comprises a gas sensor for detecting a gas component in the well, the gas sensor being disposed within the housing, a waterproof vent valve being secured to the housing, the gas sensor being in gaseous communication with the well through the waterproof vent valve.

4. The well lid detection device according to claim 2, wherein at least two electrodes connecting the inside and the outside of the casing are arranged on the casing, the electrodes are arranged at intervals, the electrodes are arranged below the casing and face the liquid level in the well, and a conductivity detection device for detecting the change of the resistance between the electrodes is arranged in the casing.

5. The manhole cover detection device according to claim 4, wherein the inner side end of the electrode is provided with a screw hole, the conductivity detection device comprises a circuit board, the circuit board is fixed on the screw hole through a screw, and the conductivity detection device is electrically connected with the electrode through the screw.

6. The well lid detection device of claim 2, wherein the housing comprises a face housing for connection with an inner side of the well lid and a rear housing having a cavity in which a power module, a control module and a wireless communication module are disposed.

7. The well lid detection device of claim 6, wherein the rear shell is externally provided with a sagging floating ball liquid level gauge, the floating ball liquid level gauge comprises a cable, the cable is connected with a floating ball, a mass block is connected between the floating ball and the shell, the floating ball ascends and descends along with the ascending and descending of liquid in the well, and an inclined switch is arranged inside the floating ball.

8. The well lid detection device of claim 7, wherein the float gauge is electrically connected to the control module via a waterproof terminal located on the rear housing.

9. The well lid detection device of claim 6, wherein a touch key is disposed on the outside of the rear housing, the touch key being electrically connected to the control module.

10. The well lid detection device according to claim 6, wherein the face shell and the rear shell opening edge are sealed by a sealing ring, and a water drain groove is arranged on the rear shell outside the sealing ring.