An integrated sensing device
By designing an integrated perception device and adopting box structure and partition design, the existing manhole monitoring device has solved the problem of complex structure and poor safety, and achieved a compact, safe and highly extensible monitoring effect.
Patent Information
- Application Number
- CN202010757999.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-07-31
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2040-07-31
AI Technical Summary
The existing manhole monitoring device has a complex structure, large space occupancy, poor sealing and moisture-proof performance, and requires external power supply, which is difficult to install and poor safety.
An integrated sensing device is designed, adopting a box structure of the upper cover, middle shell and bottom shell. The middle shell is equipped with a circuit board board, which separates the space into a battery compartment, the main board compartment and sensor compartment. The main circuit board is connected to the gas module circuit board through a waterproof joint. The bottom shell is equipped with a hollow hole and a waterproof and breathable membrane, which increases sealing and detection accuracy.
It realizes a monitoring device with compact structure, high safety and good expansion, with a wide monitoring range, supports the expansion of multiple sensors, and the partition design prevents fault spread and prevents moisture from the battery and main circuit board.
Smart Images

Figure CN111795725B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a monitoring device, and in particular to an integrated sensing device. Background Art
[0002] With the continuous advancement of urbanization, the construction of municipal public facilities has also developed rapidly. As an important public facility in the city, manhole covers are widely used in municipal water supply and drainage, electricity, communications, gas, radio and television and other industries. Real-time monitoring of the manhole itself and the environment can help users manage municipal facilities, monitor the operating status of facilities, discover hidden dangers in a timely manner, avoid the occurrence of safety accidents, realize the intelligent management of municipal public facilities, and help users monitor urban dynamics and optimize urban operations. The existing manhole monitoring devices have poor integration and scalability, a small number of types and quantities of sensors that can be installed, large size, and few types of monitored indicators.
[0003] The prior art also provides some solutions. Chinese patent CN200920207405.7 proposes an integrated environment detection device, which is provided with a fixed tube, a temperature sensor is fixed at the head end of the fixed tube, a liquid level sensor is also fixed at the head end of the fixed tube, and the connecting wires of all sensors are installed in the fixed tube, a sampling gas pipe is also installed in the fixed tube, a shell is also fixed at the head end of the fixed tube, an adjustable bracket is arranged on the shell, and a travel switch is also installed on the adjustable bracket. Its significant effect is that while monitoring the concentration of dangerous gases, the device can realize multiple functions such as drainage blockage monitoring, manhole cover theft monitoring and gas temperature monitoring, realizes the integrated installation of the detection device, is easy to install and debug, and has low cost. It also has a protection function for multiple sensors installed in a centralized manner, preventing various devices from being accidentally damaged during the cleaning of sewers and septic tanks.
[0004] However, this patent has the following problems:
[0005] The device has a complex structure, occupies a large space, and has poor sealing and moisture-proof properties;
[0006] There is no power supply, and an external power supply is required;
[0007] Gas needs to be collected through a sampling gas pipe embedded in the wall of the manhole. The detection result is inaccurate. The signal line is also set in the sampling gas pipe, which is easy to corrode, has poor safety and is difficult to install. Summary of the invention
[0008] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide an integrated sensing device with compact structure, high safety and good scalability.
[0009] The purpose of the present invention can be achieved by the following technical solutions:
[0010] An integrated sensing device comprises an outer shell and a main circuit board inside the outer shell, characterized in that the outer shell comprises an upper cover, a middle shell and a bottom shell connected in sequence, the bottom shell and the middle shell constitute a sensor compartment, a circuit board carrier is arranged in the middle shell, the circuit board carrier divides the internal space formed by the upper cover and the middle shell into a battery compartment and a main board compartment, a battery is arranged in the battery compartment, a main circuit board fixed on the circuit board carrier is arranged in the main board compartment, a gas module circuit board and a gas sensor on the gas module circuit board are arranged in the sensor compartment, a waterproof breathable valve and a hollow hole are arranged on the bottom shell, a waterproof breathable membrane covering the hollow hole is arranged on the inner wall of the bottom shell, a waterproof joint connecting the main board compartment and the sensor compartment is also arranged inside the middle shell, the main circuit board is connected to the gas module circuit board through the waterproof joint, and a photosensor and an ultrasonic liquid level sensor are arranged on the middle shell.
[0011] Furthermore, an antenna cover and a 485 connection plug are provided on the middle shell, and an antenna connected to the main circuit board is provided inside the antenna cover.
[0012] Furthermore, the middle shell is provided with an external connection through hole for an external power source, and the external connection through hole is provided with a second plug.
[0013] Furthermore, the upper cover is provided with a first slot, the middle shell is provided with a second slot, the main circuit board is connected with a first door magnetic switch and a second door magnetic switch, and the first door magnetic switch and the second door magnetic switch are respectively inserted into the first slot and the second slot.
[0014] Furthermore, the upper cover, the middle shell and the bottom shell are all box structures with one end open.
[0015] Furthermore, a first sealing groove is provided at one end of the opening of the upper cover, first countersunk holes are provided at four corners of the outer side of the bottom of the upper cover, a first sealing protrusion is provided at one end of the opening of the middle shell, the first sealing protrusion is inserted into the first sealing groove and the space between the two is filled with a second sealing ring, the upper cover is fixed to the middle shell by a hexagon socket bolt, the hexagon socket bolt is inserted into the first countersunk hole, and a first plug is inserted into the first countersunk hole.
[0016] Furthermore, a second sealing groove is provided on the outer side of the bottom of the middle shell, a second sealing protrusion is provided on the open end of the bottom shell, the second sealing protrusion is inserted into the second sealing groove, a first sealing ring is provided between the second sealing protrusion and the second sealing groove, the bottom shell is fixedly connected to the middle shell by a second hexagon socket bolt, third countersunk holes are provided at the four corners of the outer side of the bottom of the bottom shell, the second hexagon socket bolt is inserted into the third countersunk hole, and a first plug is inserted into the third countersunk hole.
[0017] Furthermore, the inner side wall of the bottom shell is provided with a mounting side wall, the gas module circuit board is placed on the mounting side wall, and a rubber ring is provided between the gas module circuit board and the inner side wall of the bottom shell.
[0018] Furthermore, a second groove is opened on the inner side of the bottom shell, the hollow hole is arranged at the bottom of the second groove, and the waterproof breathable membrane covers the second groove.
[0019] Furthermore, the middle shell is provided with a side ear, and the side ear is provided with a second countersunk hole.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] (1) The present invention sequentially connects the upper cover, the middle shell and the bottom shell, and a circuit board carrier is arranged in the middle shell. The circuit board carrier forms a battery compartment and a mainboard compartment in the closed space atmosphere formed by the upper cover and the middle shell. The middle shell and the bottom shell form a sensor compartment. The battery, the main circuit board and the gas module circuit board are respectively arranged in the battery compartment, the mainboard compartment and the sensor compartment. The main circuit board is connected to the gas module circuit board through a waterproof joint, which is convenient for expanding the gas module circuit board. A hollow hole and a waterproof breathable membrane are arranged at the bottom of the bottom shell. The gas sensors share the sensor compartment. A photosensitive sensor and an ultrasonic liquid level sensor are arranged on the middle shell. The structure is compact, easy to disassemble and assemble, has good expansibility, and has a wide monitoring range, so as to realize the digital and intelligent management of the manhole cover. At the same time, the compartment design can prevent the spread of faults and avoid the battery and the main circuit board from being damaged by moisture;
[0022] (2) The present invention is provided with a 485 connection plug on the middle shell, which facilitates the connection between the main circuit board and external equipment, realizes expansion, and expands the use scope of the sensing device;
[0023] (3) The present invention provides an external through hole on the middle shell, and a second plug is temporarily provided on the external through hole. The second plug can be removed and an external power source can be connected through the external through hole;
[0024] (4) The present invention has a first slot on the upper cover, a second slot on the middle shell, a first door magnetic switch and a second door magnetic switch connected to the main circuit board, the first door magnetic switch and the second door magnetic switch are respectively inserted into the first slot and the second slot, and can monitor whether the sensing device is opened and damaged, and has good safety;
[0025] (5) The present invention sequentially connects the upper cover, the middle shell and the bottom shell to form an outer shell. The outer shell, the upper cover, the middle shell and the bottom shell are all box structures with one end open, which is convenient for forming a closed space, easy to disassemble and assemble, and good in expandability;
[0026] (6) The present invention has a first sealing groove at one end of the opening of the upper cover, first countersunk holes at four corners of the outer side of the bottom of the upper cover, a first sealing protrusion at one end of the opening of the middle shell, the first sealing protrusion is inserted into the first sealing groove and the space between the two is filled with a second sealing ring, the upper cover is fixed to the middle shell by a hexagon socket bolt, the hexagon socket bolt is inserted into the first countersunk hole, and a first plug is inserted into the first countersunk hole, so that the connection between the upper cover and the middle shell is stable and has good sealing performance;
[0027] (7) The present invention provides a second sealing groove on the outer side of the bottom of the middle shell, a second sealing protrusion is provided at one end of the opening of the bottom shell, the second sealing protrusion is inserted into the second sealing groove, a first sealing ring is provided between the second sealing protrusion and the second sealing groove, the bottom shell is fixedly connected to the middle shell by a second hexagon socket bolt, a third countersunk hole is provided at the four corners of the outer side of the bottom of the bottom shell, the second hexagon socket bolt is inserted into the third countersunk hole, a first plug is inserted into the third countersunk hole, and the connection between the middle shell and the bottom shell is stable and has good sealing performance;
[0028] (8) The present invention provides an installation side wall on the inner side wall of the bottom shell, the gas module circuit board is placed on the installation side wall, a rubber ring is provided between the gas module circuit board and the inner side wall of the bottom shell, and the gas module circuit board divides the sensor compartment into two spaces, so that the gas in the manhole cannot enter the space between the gas module circuit board and the middle shell, thereby preventing gas penetration, playing a role in protecting the gas module circuit board, the main board compartment and the battery compartment, and having good safety;
[0029] (9) The present invention has a second groove on the inner side of the bottom shell, a hollow hole is provided at the bottom of the second groove, and the waterproof breathable membrane covers the second groove. The gas in the manhole first enters the second groove through the hollow hole, and then passes through the waterproof breathable membrane, thereby increasing the contact area between the gas in the manhole and the waterproof breathable membrane, and improving the accuracy of gas detection;
[0030] (10) In the present invention, a side ear is provided on the middle shell, and a second countersunk hole is opened on the side ear to facilitate installation of the outer shell through the side ear. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a schematic diagram of the explosion structure of the present invention;
[0032] Figure 2 is a schematic diagram of the internal structure of the upper cover;
[0033] Figure 3 Schematic diagram of the internal structure of the middle shell;
[0034] Figure 4 Schematic diagram of the outer structure of the middle shell;
[0035] Figure 5 Schematic diagram of the bottom structure of the middle shell;
[0036] Figure 6It is a schematic diagram of the three-dimensional structure of the present invention;
[0037] Figure 7 Schematic diagram of the internal structure of the bottom shell;
[0038] Figure 8 Schematic diagram of the outer structure of the bottom shell;
[0039] Fig. 9 This is a schematic diagram of the installation position of the temporary cover;
[0040] Fig.10 is a cross-sectional view of the present invention;
[0041] Fig.11 Schematic diagram of the outer structure of the upper cover;
[0042] Fig.12 is a cross-sectional view of the sensor compartment;
[0043] Description of the numbers in the figure:
[0044] 1. Upper cover, 2. First plug, 3. First door magnetic switch, 4. First hexagon socket bolt, 5. Battery, 6. Second door magnetic switch, 7. Waterproof connector, 8. 485 connection plug, 9. Photosensitive sensor, 10. First sealing ring, 11. Temporary cover, 12. CO sensor, 13. Waterproof breathable valve, 14. Waterproof breathable membrane, 15. Bottom shell, 16. Ultrasonic liquid level sensor, 17. CH 4 Sensor, 18.H 2 S sensor, 19. antenna cover, 20. middle shell, 21. main circuit board, 22. circuit board carrier, 23. second sealing ring, 24. second plug, 25. gas module circuit board, 26. second fixing seat, 101. first slot, 102. first sealing groove, 103. first countersunk hole, 151. sixth threaded hole, 152. second sealing protrusion, 153. hollow hole, 154. installation side wall, 155. third fixing seat, 156. first groove, 15 7. Second groove, 158. Rubber ring, 159. Third countersunk hole, 160. Second hexagon socket bolt, 201. First sealing protrusion, 202. Nameplate mounting groove, 203. First threaded hole, 204. Side ear, 205. Second countersunk hole, 206. External through hole, 207. First fixing seat, 208. Second slot, 209. Second threaded hole, 210. Third threaded hole, 211. Fourth threaded hole, 212. Fifth threaded hole, 213. Second sealing groove. DETAILED DESCRIPTION
[0045] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.
[0046] An integrated sensing device, such as Figure 1 , Figure 6 and Fig.10 , including a shell and a sensor module, a battery 5, a main circuit board 21, an antenna cover 19, and a circuit board carrier 22 arranged on the shell, the sensor module includes a gas module circuit board 25, a gas sensor, a photosensor 9 and an ultrasonic liquid level sensor 16, the shell includes an upper cover 1, a middle shell 20 and a bottom shell 15 connected in sequence, the middle shell 20 and the bottom shell 15 are both box structures with one end open, the bottom shell 15 and the internal space at the bottom of the middle shell 20 constitute a sensor compartment, a first fixing seat 207 is provided at the bottom of the middle shell 20, the circuit board carrier 22 is fixed to the first fixing seat 207 by bolts, and the circuit board carrier 22 separates the space formed by the upper cover 1 and the middle shell 20 into a battery compartment and a mainboard compartment, such as Figure 2 and Fig.11 , a first sealing groove 102 is provided at one end of the opening of the upper cover 1, and first countersunk holes 103 are provided at the four corners of the outer bottom of the upper cover 1. A first sealing protrusion 201 is provided at one end of the opening of the middle shell 20. The first sealing protrusion 201 is inserted into the first sealing groove 102 and the space between the two is filled with a second sealing ring 23. The upper cover 1 is fixed to the middle shell 20 by a hexagon socket bolt 4, and the hexagon socket bolt 4 is inserted into the first countersunk hole 103. A first plug 2 for sealing is inserted at one end of the first countersunk hole 103 located on the outer side of the upper cover 1. The battery 5 is located in the battery compartment and is placed on the circuit board carrier 22. The battery 5 is a 20000mAh lithium battery. The battery 5 is connected to the first door magnetic switch 3 and the second door magnetic switch 6. The upper cover 1 is provided with a first slot 101, and the middle shell 20 is provided with a second slot 208. The first door magnetic switch 3 and the second door magnetic switch 6 are inserted into the first slot 101 and the second slot 208 respectively.
[0047] like Figure 3 , Figure 4 and Figure 5, a second fixing seat 26 located in the main board compartment is provided on the circuit board carrier 22, the main circuit board 21 is connected to the battery 5 and fixed to the circuit board carrier 22 by bolts, a fifth threaded hole 212 is opened at the bottom of the middle shell 20, and a first threaded hole 203, an external through hole 206, a second threaded hole 209 and a third threaded hole 210 are opened on the side of the middle shell 20, the antenna cover 19 is connected to the first threaded hole 203, an antenna connected to the main circuit board 21 is provided in the antenna cover 19, and the antenna adopts LoRa or NB-IoT communication mode, a second plug 24 is provided on the external through hole 206, the main circuit board 21 can be connected to an external power supply through the external through hole 206, the main circuit board 21 is connected to a 485 connection plug 8, and the 485 connection plug 8 is installed on the second threaded hole 209, the ultrasonic liquid level sensor 16 is located outside the shell and installed on the fifth threaded hole 212, and the photosensitive sensor 9 is installed on the third threaded hole 210. Two side ears 204 for fixing the sensing device are symmetrically arranged on the side of the middle shell 20 , and two second countersunk holes 205 are opened on each side ear 204 . A nameplate mounting groove 202 is arranged on the side of the middle shell 20 .
[0048] like Fig. 9 When not assembled with the bottom shell 15 , a temporary cover plate 11 for closing the fourth threaded hole 211 is fixed to the bottom of the middle shell 20 .
[0049] like Figure 5 , Figure 7 and Fig.12 A second sealing groove 213 is provided on the outer side of the bottom of the middle shell 20, and a second sealing protrusion 152 is provided at one open end of the bottom shell 15. The second sealing protrusion 152 is inserted into the second sealing groove 213. A first sealing ring 10 is provided between the second sealing protrusion 152 and the second sealing groove 213. The bottom shell 15 is fixedly connected to the middle shell 20 by a second hexagon socket bolt 160.
[0050] like Figure 7 and Figure 8, third countersunk holes 159 are provided at the four corners of the outer side of the bottom of the bottom shell 15, and the second hexagon socket bolts 160 are inserted into the third countersunk holes 159. The third countersunk hole 159 is located on the outer side of the bottom shell 15. The first plug 2 for sealing is inserted into one end. Two sixth threaded holes 151 are symmetrically opened on the side of the bottom shell 15, and each sixth threaded hole 151 is installed with a waterproof breathable valve 13. The outer side of the side of the bottom shell 15 is opened with a first groove 156 for easy handholding. The inner side wall of the bottom shell 15 is provided with a mounting side wall 154, and the mounting side wall 154 is provided with a third fixing seat 155. The gas module circuit board 25 is placed on the mounting side wall 154 and fixedly connected to the third fixing seat 155 by bolts. A rubber ring 158 for sealing is provided between the gas module circuit board 25 and the inner side wall of the bottom shell 15. The gas sensor is placed on the gas module circuit board 25 and is located between the two waterproof breathable valves 13. The gas sensor includes a CO sensor 12, a CH sensor 13, and a gas module circuit board 25. 4 Sensor 17 and H 2 S sensor 18, a fourth threaded hole 211 connecting the mainboard compartment and the sensor compartment is formed at the bottom of the middle shell 20, a waterproof connector 7 located in the mainboard compartment is installed on the fourth threaded hole 211, the main circuit board 21 is connected to the gas module circuit board 25 by a connecting line passing through the waterproof connector 7, a second groove 157 is formed on the inner side of the bottom of the bottom shell 15, a hollow hole 153 is formed at the bottom of the second groove 157, a waterproof and breathable membrane 14 covering the second groove 157 is provided on the inner side of the bottom of the bottom shell 15, and the waterproof and breathable membrane 14 is made of ePTFE.
[0051] The sensing device is installed in the manhole through the side ear 204. The gas in the manhole passes through the hollow hole 153 and the waterproof breathable membrane 14 in turn into the sensor compartment. The sensor compartment is ventilated through the waterproof breathable valve 13. The gas sensor detects the gas composition information of the gas. The ultrasonic liquid level sensor 16 detects the water level information in the manhole. The photosensitive sensor detects the light intensity information in the manhole. The water level information and the light intensity information are uploaded to the main circuit board 21. The gas composition information is uploaded to the gas module circuit board 25 and the main circuit board 21 in turn. The main circuit board 21 can realize information transmission with the detection center through the antenna. When any monitored When a type of information exceeds the set threshold, the main circuit board 21 sends an alarm to the detection center through the antenna. The main circuit board 21 can be connected to an external device through the 485 connection plug 8, or it can be connected to an external power supply through the external through hole 206. The power supply is connected to the main circuit board 21 through an aviation waterproof plug. At this time, the battery 5 is not used. When the sensing device is disassembled, the first door magnetic switch 3 and the second door magnetic switch 6 are respectively separated from the first slot 101 and the second slot 208, and the first door magnetic switch 3 and the second door magnetic switch 6 are changed from an open state to a closed state. The main circuit board 21 can monitor the state change, thereby realizing anti-theft monitoring of the sensing device.
[0052] This embodiment proposes an integrated sensing device with a mainboard compartment, a battery compartment and a sensor compartment designed as separate compartments, which is convenient for maintenance and free combination, and can prevent the spread of faults, and has good safety and moisture resistance. Battery 5 or an external power supply can be used. All gas sensors share the sensor compartment, and various types of gas sensors can be arbitrarily set, which is easy to expand and has good flexibility.
[0053] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.
Claims
1. An integrated sensing device, comprising a housing and a main circuit board (21) inside the housing, characterized in that: The housing comprises an upper cover (1), a middle shell (20) and a bottom shell (15) which are connected in sequence; the bottom shell (15) and the middle shell (20) constitute a sensor compartment; a circuit board carrier (22) is arranged in the middle shell (20); the circuit board carrier (22) divides the internal space formed by the upper cover (1) and the middle shell (20) into a battery compartment and a main board compartment; a battery (5) is arranged in the battery compartment; a main circuit board (21) fixed on the circuit board carrier (22) is arranged in the main board compartment; and a sensor compartment is provided with a sensor compartment. A gas module circuit board (25) and a gas sensor on the gas module circuit board (25) are provided, the bottom shell (15) is provided with a waterproof breathable valve (13) and a hollow hole (153), the inner wall of the bottom shell (15) is provided with a waterproof breathable membrane (14) covering the hollow hole (153), the middle shell (20) is further provided with a waterproof connector (7) connecting the main board compartment and the sensor compartment, the main circuit board (21) is connected to the gas module circuit board (25) via the waterproof connector (7), and the middle shell The upper cover (1) is provided with a photosensitive sensor (9) and an ultrasonic liquid level sensor (16), the upper cover (1) is provided with a first slot (101), the middle shell (20) is provided with a second slot (208), the main circuit board (21) is connected with a first door magnetic switch (3) and a second door magnetic switch (6), the first door magnetic switch (3) and the second door magnetic switch (6) are respectively inserted into the first slot (101) and the second slot (208), when the integrated sensing device is disassembled, the first door magnetic switch (3) and the second door magnetic switch (6) are respectively inserted into the first slot (101) and the second slot (208), and ... The switch (3) and the second door magnetic switch (6) are respectively detached from the first slot (101) and the second slot (208), the first door magnetic switch (3) and the second door magnetic switch (6) are changed from an open state to a closed state, and the state change is monitored by the main circuit board (21) to perform anti-theft monitoring on the integrated sensing device; the middle shell (20) is provided with a side ear (204), the side ear (204) is provided with a second countersunk hole (205), and the side ear (204) is used to fix the integrated sensing device.
2. An integrated sensing device according to claim 1, characterized in that: The middle shell (20) is provided with an antenna cover (19) and a 485 connection plug (8), and an antenna connected to a main circuit board (21) is provided inside the antenna cover (19).
3. The integrated sensing device according to claim 1, characterized in that: The middle shell (20) is provided with an external connection through hole (206) for connecting an external power source, and the external connection through hole (206) is provided with a second plug (24).
4. The integrated sensing device according to claim 1, characterized in that: The upper cover (1), the middle shell (20) and the bottom shell (15) are all box structures with one end open.
5. The integrated sensing device according to claim 4, characterized in that: A first sealing groove (102) is provided at one open end of the upper cover (1), first countersunk holes (103) are provided at four corners of the outer bottom of the upper cover (1), a first sealing protrusion (201) is provided at one open end of the middle shell (20), the first sealing protrusion (201) is inserted into the first sealing groove (102), and a second sealing ring (23) is filled in the space between the first sealing protrusion (201), the upper cover (1) is fixed to the middle shell (20) by a hexagon socket bolt (4), the hexagon socket bolt (4) is inserted into the first countersunk hole (103), and a first plug (2) is inserted into the first countersunk hole (103).
6. The integrated sensing device according to claim 4, characterized in that: A second sealing groove (213) is provided on the outer side of the bottom of the middle shell (20), a second sealing protrusion (152) is provided on the open end of the bottom shell (15), the second sealing protrusion (152) is inserted into the second sealing groove (213), a first sealing ring (10) is provided between the second sealing protrusion (152) and the second sealing groove (213), the bottom shell (15) is fixedly connected to the middle shell (20) by a second hexagon socket bolt (160), third countersunk holes (159) are provided at four corners of the outer side of the bottom of the bottom shell (15), the second hexagon socket bolt (160) is inserted into the third countersunk hole (159), and a first plug (2) is inserted into the third countersunk hole (159).
7. The integrated sensing device according to claim 1, characterized in that: The inner side wall of the bottom shell (15) is provided with a mounting side wall (154), the gas module circuit board (25) is placed on the mounting side wall (154), and a rubber ring (158) is provided between the gas module circuit board (25) and the inner side wall of the bottom shell (15).
8. The integrated sensing device according to claim 1, characterized in that: A second groove (157) is formed on the inner side of the bottom shell (15), the hollow hole (153) is arranged at the bottom of the second groove (157), and the waterproof and breathable membrane (14) covers the second groove (157).
Citation Information
Patent Citations
Integrated environmental detection device
CN201561977U
Inspection well intelligent monitoring module
CN210533442U
Integrated sensing device
CN212458459U