Integrated monitoring device for safe operation control in confined space

Abstract

The utility model discloses an integrated monitoring device for limited space safety operation management and control, which can move in the limited space through the movable base, control the air suction pump to work after moving to the target area, and then transport the sampled gas of the target area to the gas detection module for detection through the air inlet, and the gas detection module transmits the gas detection result to the control circuit board and then transmits it to the cloud server wirelessly through the wireless communication module, thereby realizing the air quality detection of any area in the limited space, ensuring the safety of the operation personnel in the limited space, and having the advantages of simple structure, compactness and miniaturization.

Description

Technical Field

[0001] This utility model relates to the field of confined space safety operation control technology, and in particular, to an integrated monitoring device for confined space safety operation control. Background Technology

[0002] In industrial sites of hazardous chemical enterprises and commercial enterprises, poor natural ventilation in confined spaces can easily lead to the accumulation of toxic, harmful, flammable, and explosive substances or insufficient oxygen content. Furthermore, there are other hazards such as drowning, collapse and burial, electric shock, and mechanical injuries. Even slight negligence during confined space operations can cause serious accidents. Statistics show that from 2016 to 2020, there were 173 major accidents involving confined space operations nationwide, resulting in 604 deaths and economic losses to enterprises amounting to tens of millions of yuan. Therefore, how to effectively manage and control confined space operations has become a critical issue that urgently needs to be addressed. Currently, to monitor air quality in confined spaces, gas detectors are generally used to measure air quality indicators such as the concentration of toxic and harmful gases and oxygen concentration to ensure the safety of workers operating in confined spaces. However, gas detectors are generally fixed in place, such as at the entrance or the top opening of the confined space, making mobile monitoring impossible and hindering in-depth monitoring of the confined space. For example, Chinese patent CN209199305U discloses a safety protection system for confined space operations. It uses a sampling tube installed at the entrance of the confined space and a gas detector to sample and detect the gas through the sampling tube. It can detect the concentration of combustible gas, CO, CO2, O2 and H2S at the entrance of the confined space. However, this patent solution can only perform gas sampling and detection at the entrance of the confined space and cannot detect the inside of the confined space. Utility Model Content

[0003] This utility model provides an integrated monitoring device for safe operation control in confined spaces. It enables air quality detection in any area within a confined space, ensuring the safety of workers operating in confined spaces. It also has the advantages of simple structure, compact size, and miniaturization.

[0004] According to one aspect of this utility model, an integrated monitoring device for safe operation management in confined spaces is provided, comprising a housing, a battery, a wireless communication module, a control circuit board, an air pump, an air inlet, and a gas detection module. The housing is mounted on a mobile base. The battery, control circuit board, and air pump are all mounted inside the housing. A portion of the wireless communication module is mounted inside the housing, and a portion is mounted on the housing. The air inlet and gas detection module are both mounted on the housing. The battery is electrically connected to the wireless communication module, control circuit board, air pump, and gas detection module. The wireless communication module, air pump, and gas detection module are all electrically connected to the control circuit board. The air pump is connected to both the air inlet and the gas detection module. After moving to a target area within the confined space via the mobile base, the air inlet collects gas from the target area and delivers it to the gas detection module via the air pump. The gas detection module detects the collected gas and then wirelessly transmits the gas detection results to a cloud server via the wireless communication module.

[0005] Furthermore, the gas detection module includes a straight-through gas pipe, a sensor base, a sensor circuit board, an adapter gas pipe, a gas chamber, and a sensor housing. The sensor base is mounted on the housing, the sensor circuit board is mounted on the sensor base, and at least one gas sensor is mounted on the sensor circuit board. The gas chamber is provided with at least one gas detection chamber, and one gas sensor is placed in one corresponding gas detection chamber. The gas chamber is connected to the adapter gas pipe, which is mounted on the sensor circuit board. The sensor housing is connected to the sensor base to form a closed space to encapsulate the sensor base, sensor circuit board, adapter gas pipe, gas chamber, and sensor housing. The straight-through gas pipe is installed through the sensor base, with one end connected to the air inlet and the other end connected to the adapter gas pipe.

[0006] Furthermore, the sensor circuit board is equipped with six gas sensors, and the gas chamber is provided with six gas detection chambers. One gas detection chamber is located in the middle, and the other five gas detection chambers are evenly distributed around the middle gas detection chamber in the circumferential direction. The five outer gas detection chambers are individually connected to the middle gas detection chamber. The middle gas detection chamber is connected to the adapter gas pipe through an air inlet, and the five outer gas detection chambers are individually provided with an air outlet.

[0007] Furthermore, the air chamber is also connected to the sensor circuit board to form a closed space to encapsulate the sensor circuit board, the adapter air tube, and the air chamber.

[0008] Furthermore, the sensor housing includes an outer shell and an explosion-proof plate, the outer shell being connected to the sensor base, and the explosion-proof plate being installed at the central opening of the outer shell.

[0009] Furthermore, each of the gas detection chambers is provided with a gas diffusion barrier column, which enables the gas to diffuse evenly within the gas detection chamber.

[0010] Furthermore, the gas sensor is mounted in the gas detection chamber via a sensor mounting sleeve.

[0011] Furthermore, a camera is also installed on the housing. The camera is electrically connected to the control circuit board and is used to collect video information in the confined space in real time. A glass dome is also installed around the camera to protect it.

[0012] Furthermore, the bottom of the housing is provided with a coated magnet, and the housing is installed on the mobile base by magnetic attraction.

[0013] Furthermore, an audible and visual alarm light is also installed on the housing, and the audible and visual alarm light is electrically connected to the control circuit board.

[0014] This utility model has the following beneficial effects: This utility model discloses an integrated monitoring device for safe operation management in confined spaces. It can move within a confined space via a mobile base. When it moves to the target area, it controls the air intake pump to operate, and samples the gas in the target area through the air inlet and delivers it to the gas detection module for detection. The gas detection module transmits the gas detection results to the control circuit board and wirelessly to the cloud server through the wireless communication module. This enables air quality detection in any area within a confined space, ensuring the safety of workers operating in confined spaces. It also has the advantages of simple, compact, and miniaturized structure.

[0015] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is an exploded structural diagram of an integrated monitoring device for safe operation control in confined spaces, according to a preferred embodiment of this application. Figure 2 This is a cross-sectional structural schematic diagram of an integrated monitoring device for safe operation control in confined spaces, according to a preferred embodiment of this application. Figure 3 This is a schematic diagram of the exploded structure of a gas detection module according to a preferred embodiment of this application; Figure 4 This is a three-dimensional structural diagram of the air chamber according to a preferred embodiment of this application; Figure 5 This is a front structural diagram of the air chamber according to a preferred embodiment of this application; Figure 6 This is a schematic diagram of the rear structure of the air chamber according to a preferred embodiment of this application; Figure 7 This is a cross-sectional structural diagram of the air chamber according to a preferred embodiment of this application.

[0017] Explanation of reference numerals in the attached figures 1. Housing; 2. Battery; 3. Wireless communication module; 4. Control circuit board; 5. Air pump; 6. Air inlet; 7. Gas detection module; 8. Camera; 9. Glass dome; 10. Glue-coated magnet; 11. Audible and visual alarm light; 12. Switch; 13. Top cover; 71. Straight air pipe; 72. Sensor base; 73. Sensor circuit board; 74. Adapter air pipe; 75. Gas chamber; 76. Sensor outer cover; 77. Gas sensor; 78. Gas detection chamber; 79. Air inlet; 80. Air outlet; 81. Sensor mounting sleeve; 761. Housing; 762. Explosion-proof sheet; 781. Gas diffusion barrier column; 31. Gateway; 32. Antenna; 41. Display integrated module; 42. Display cover. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Reference Figure 1 and Figure 2A preferred embodiment of this application provides an integrated monitoring device for safe operation management in confined spaces, including a housing 1, a battery 2, a wireless communication module 3, a control circuit board 4, an air pump 5, an air inlet 6, and a gas detection module 7. The housing 1 is detachably mounted on a mobile base, allowing it to move within the confined space to the target area along with the mobile base, and facilitating disassembly and storage. The mobile base can be a wheeled or tracked type. Of course, in other embodiments, the integrated monitoring device may also be equipped with a mobile base. The battery 2, control circuit board 4, and air pump 5 are all installed inside the housing 1. Part of the wireless communication module 3 is installed inside the housing 1, and part is installed on the housing 1. The air inlet 6 and gas detection module 7 are both installed on the housing 1. The battery 2 is electrically connected to the wireless communication module 3, control circuit board 4, air pump 5, and gas detection module 7. The wireless communication module 3, air pump 5, and gas detection module 7 are all electrically connected to the control circuit board 4. The air pump 5 is connected to both the air inlet 6 and the gas detection module 7. The air pump 5 samples the gas through the air inlet 6 and then delivers the sampled gas to the gas detection module 7 for detection. The gas detection module 7 transmits the gas detection results to the control circuit board 4, which then wirelessly transmits the data to a cloud server via the wireless communication module 3, allowing staff to monitor the air quality in the confined space at any time. It is understandable that in practical applications, after the integrated monitoring device moves to the target area in a confined space via the mobile base, the control circuit board 4 receives the control signal and controls the air intake pump 5 to start working. The air inlet 6 collects the gas in the target area and delivers it to the gas detection module 7 through the air intake pump 5. The gas detection module 7 is used to detect the collected gas and then wirelessly transmit the gas detection results to the cloud server through the wireless communication module 3.

[0020] It is understood that the integrated monitoring device for safe operation management in confined spaces in this embodiment can move within the confined space via a mobile base. When it moves to the target area, it controls the air intake pump 5 to work, and after sampling the gas in the target area through the air inlet 6, it delivers the sample to the gas detection module 7 for detection. The gas detection module 7 transmits the gas detection results to the control circuit board 4 and wirelessly transmits them to the cloud server through the wireless communication module 3. This realizes the detection of air quality in any area within the confined space, ensuring the safety of workers operating in confined spaces, and has the advantages of simple structure, compactness, and miniaturization.

[0021] Among them, such as Figures 3 to 7As shown, the gas detection module 7 includes a straight gas pipe 71, a sensor base 72, a sensor circuit board 73, a connecting gas pipe 74, a gas chamber 75, and a sensor cover 76. The sensor base 72 is mounted on the housing 1, and the sensor circuit board 73 is mounted on the sensor base 72. At least one gas sensor 77 is mounted on the sensor circuit board 73. The gas chamber 75 is provided with at least one gas detection chamber 78, and one gas sensor 77 is placed in one gas detection chamber 78. The gas chamber 75 is connected to the connecting gas pipe 74, which is mounted on the sensor circuit board 73. One end of the connecting gas pipe 74 communicates with the gas detection chamber 78, and the other end is connected to the air inlet 6. The sensor cover 76 is connected to the sensor base 72 to form a closed space to encapsulate the sensor base 72, sensor circuit board 73, connecting gas pipe 74, gas chamber 75, and sensor cover 76. The straight-through air pipe 71 is installed through the sensor base 72, with one end connected to the air inlet 6 and the other end connected to the adapter air pipe 74. It can be understood that the gas collected by the air inlet 6 is transported through the straight-through air pipe 71 and the adapter air pipe 74 to the gas detection chamber 78 of the gas chamber 75, and the corresponding gas sensor 77 detects the gas in the gas detection chamber 78.

[0022] It is understood that the gas detection module 7 in this embodiment is connected to the sensor housing 76 via the sensor base 72, and the sensor circuit board 73, the adapter pipe 74, and the gas chamber 75 are encapsulated in the closed space formed by the connection between the two. Air is introduced only through the adapter pipe 74, realizing a modular design with a simple and compact structure, which is conducive to the miniaturization of the integrated monitoring device, and also provides protection for the core components of gas detection.

[0023] Optionally, the gas chamber 75 is also connected to the sensor circuit board 73 to form a closed space, encapsulating the sensor circuit board 73, the adapter gas tube 74, and the gas chamber 75. This achieves an integrated and modular design of the sensor circuit board 73, the adapter gas tube 74, and the gas chamber 75, providing protection for the gas sensor 77. Furthermore, the gas sensor 77 is also mounted in the gas detection chamber 78 via a sensor fixing sleeve 81, which improves the sealing of each gas detection chamber 78, thereby increasing the accuracy of gas detection results. It also facilitates the installation and positioning of the gas sensor 77.

[0024] Preferably, the sensor circuit board 73 is equipped with six gas sensors 77, which can detect the concentration of combustible gas, oxygen concentration, and four toxic and harmful gases respectively. The gas chamber 75 is provided with six gas detection chambers 78, and each gas sensor 77 is installed in one gas detection chamber 78. One gas detection chamber 78 is located in the middle, and the other five gas detection chambers 78 are evenly distributed around the middle gas detection chamber 78 in the circumferential direction. The five outer gas detection chambers 78 are individually connected to the middle gas detection chamber 78. The middle gas detection chamber 78 is connected to the adapter pipe 74 through the air inlet 79, and the five outer gas detection chambers 78 are individually provided with an air outlet 80. It is understood that the gas sampled by the inlet 6 first enters the central gas detection chamber 78 through the inlet 79, and then is delivered to the five peripheral gas detection chambers 78 respectively. Each of the five peripheral gas detection chambers 78 has its own outlet 80, achieving airflow guidance and allowing the gas to be delivered quickly and evenly to the five gas detection chambers 78. Furthermore, each gas detection chamber 78 is equipped with a gas diffusion barrier column 781. After entering the gas detection chamber 78, the airflow impacts the gas diffusion barrier column 781, causing the gas to diffuse evenly within the gas detection chamber 78. Preferably, the gas diffusion barrier column 781 is located in the exact center of the gas detection chamber 78.

[0025] In addition, the sensor housing 76 includes a housing 761 and an explosion-proof plate 762. The housing 761 is connected to the sensor base 72. A through hole is provided in the middle of the housing 761. The explosion-proof plate 762 is installed at the middle opening of the housing 761 to achieve the explosion-proof effect.

[0026] In addition, a camera 8 is installed on the housing 1. The camera 8 is electrically connected to the control circuit board 4 and is used to collect video information in the confined space in real time. The control circuit board 4 transmits the video information to the cloud server through the wireless transmission module 3, so that the staff can monitor the working environment in the confined space in real time and help to eliminate risks in advance. Furthermore, a glass dome 9 is installed around the camera 8 to protect it. The glass dome 9 is placed around the camera 8 and its edges are locked to the housing 1 by the upper cover plate 13. In addition, the behavior analysis of the workers can be performed based on the real-time video information using AI intelligent algorithms. For example, it can register the arrival / departure of personnel entering the confined space, detect the on-duty / off-duty status of safety supervisors, and provide real-time alarms for behaviors that may endanger personal safety, such as personnel wearing safety clothing and whether they have fallen. The specific behavior analysis algorithm is existing technology and will not be described in detail here.

[0027] In addition, a coated magnet 10 is provided at the bottom of the housing 1, and the housing 1 is magnetically attached to the mobile base, facilitating the assembly and disassembly of the integrated monitoring device. Furthermore, an audible and visual alarm light 11 is also installed on the housing 1. The audible and visual alarm light 11 is electrically connected to the control circuit board 4. When the air quality in the confined space is detected to be unsatisfactory, or when the behavior of the workers is deemed unacceptable, the audible and visual alarm light 11 can be activated to alert the on-site personnel.

[0028] The wireless communication module 3 specifically includes a gateway 31 and an antenna 32. The gateway 31 is disposed inside the housing 1, and the antenna 32 is mounted on the housing 1. The gateway 31 and the antenna 32 are electrically connected. Optionally, the wireless communication module 3 is equipped with a LoRa module, which is beneficial for realizing long-distance wireless communication.

[0029] In addition, the integrated monitoring device also includes an infrared remote control module, which is electrically connected to the control circuit board 4. The infrared remote control module can receive remote control commands issued by on-site personnel to achieve long-distance remote control. Furthermore, a switch 12 is also provided on the housing 1, which is electrically connected to the control circuit board 4 and used to control the integrated monitoring device to turn on or off. Additionally, the control circuit board 4 is equipped with a display integrated module 41, used to display on-site gas detection results, network signals, alarm information, etc. A display cover 42 is correspondingly provided on the housing 1 at the location of the display integrated module 41. The display cover 42 includes an upper cover housing and a transparent explosion-proof sheet, which facilitates observation of the displayed information and provides protection.

[0030] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0031] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An integrated monitoring device for safe operation control in confined spaces, characterized in that, The device includes a housing (1), a battery (2), a wireless communication module (3), a control circuit board (4), an air pump (5), an air inlet (6), and a gas detection module (7). The housing (1) is mounted on a mobile base. The battery (2), control circuit board (4), and air pump (5) are all mounted inside the housing (1). Part of the wireless communication module (3) is mounted inside the housing (1), and part is mounted on the housing (1). The air inlet (6) and gas detection module (7) are both mounted on the housing (1). The battery (2) is mounted on the wireless communication module (3), control circuit board (4), and control circuit board (5). The air pump (5) and the gas detection module (7) are electrically connected. The wireless communication module (3), the air pump (5) and the gas detection module (7) are all electrically connected to the control circuit board (4). The air pump (5) is connected to the air inlet (6) and the gas detection module (7) respectively. After moving to the target area in the confined space by the moving base, the air inlet (6) collects the gas in the target area and delivers it to the gas detection module (7) through the air pump (5). The gas detection module (7) is used to detect the collected gas and then wirelessly transmit the gas detection results to the cloud server through the wireless communication module (3).

2. The integrated monitoring device for safe operation control in confined spaces as described in claim 1, characterized in that, The gas detection module (7) includes a straight gas pipe (71), a sensor base (72), a sensor circuit board (73), a connecting gas pipe (74), a gas chamber (75), and a sensor cover (76). The sensor base (72) is mounted on the housing (1), and the sensor circuit board (73) is mounted on the sensor base (72). At least one gas sensor (77) is mounted on the sensor circuit board (73). The gas chamber (75) is provided with at least one gas detection chamber (78), and one gas sensor (77) is placed in one gas detection chamber. Inside (78), the air chamber (75) is connected to the adapter air pipe (74), the adapter air pipe (74) is installed on the sensor circuit board (73), the sensor cover (76) is connected to the sensor base (72) to form a closed space to encapsulate the sensor base (72), sensor circuit board (73), adapter air pipe (74), air chamber (75) and sensor cover (76), the straight air pipe (71) is installed through the sensor base (72), one end is connected to the air inlet (6) and the other end is connected to the adapter air pipe (74).

3. The integrated monitoring device for safe operation control in confined spaces as described in claim 2, characterized in that, The sensor circuit board (73) is equipped with six gas sensors (77). The gas chamber (75) is provided with six gas detection chambers (78). One gas detection chamber (78) is located in the middle, and the other five gas detection chambers (78) are evenly distributed around the middle gas detection chamber (78) in the circumferential direction. The five outer gas detection chambers (78) are individually connected to the middle gas detection chamber (78). The middle gas detection chamber (78) is connected to the adapter pipe (74) through the air inlet (79). The five outer gas detection chambers (78) are individually provided with air outlets (80).

4. The integrated monitoring device for safe operation control in confined spaces as described in claim 2, characterized in that, The air chamber (75) is also connected to the sensor circuit board (73) to form a closed space to encapsulate the sensor circuit board (73), the adapter air tube (74) and the air chamber (75).

5. The integrated monitoring device for safe operation control in confined spaces as described in claim 2, characterized in that, The sensor housing (76) includes a housing (761) and an explosion-proof plate (762). The housing (761) is connected to the sensor base (72), and the explosion-proof plate (762) is installed at the middle opening of the housing (761).

6. The integrated monitoring device for safe operation control in confined spaces as described in claim 2, characterized in that, Each of the gas detection chambers (78) is provided with a gas diffusion barrier column (781) so that the gas diffuses evenly within the gas detection chamber (78).

7. The integrated monitoring device for safe operation control in confined spaces as described in claim 2, characterized in that, The gas sensor (77) is installed in the gas detection chamber (78) via a sensor mounting sleeve (81).

8. The integrated monitoring device for safe operation control in confined spaces as described in claim 1, characterized in that, A camera (8) is also installed on the housing (1). The camera (8) is electrically connected to the control circuit board (4) and is used to collect video information in the confined space in real time. A glass dome (9) is also installed around the camera (8) to protect the camera (8).

9. The integrated monitoring device for safe operation control in confined spaces as described in claim 1, characterized in that, The bottom of the housing (1) is provided with a coated magnet (10), and the housing (1) is installed on the mobile base by magnetic attraction.

10. The integrated monitoring device for safe operation control in confined spaces as described in claim 1, characterized in that, The housing (1) is also equipped with an audible and visual alarm light (11), which is electrically connected to the control circuit board (4).

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