Detection equipment for volatile organic gas

Abstract

The utility model discloses detection equipment for volatile organic gas, which comprises a shell, a display screen arranged at the top of the front side of the shell, a power switch, a detection switch, a fan switch and a keyboard fixedly arranged at the bottom of the front side of the shell, a battery mounting groove arranged at the bottom of the back side of the shell, and a rechargeable battery arranged in the battery mounting groove, the detection equipment comprises a shell, the bottom end of the shell is provided with a charging connector and a data interface, the top end of the shell is fixedly provided with an electrochemical sensor, and the sensing end of the electrochemical sensor is connected with two connectors. Air at the position to be detected is sucked through the suction hood, the air enters the two connectors through the hose, volatile organic gas starts to be sensed through the electrochemical sensor, detection of the volatile organic gas is achieved, the volatile organic gas is extracted through the suction hood, operation is easy and convenient, and the sensing precision and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of gas detection, specifically to a detection device for volatile organic gases. Background Technology

[0002] Volatile organic compounds (VOCs) refer to organic compounds with a saturated vapor pressure exceeding 133.32 Pa at room temperature and a melting point between 50 and 260°C under natural pressure. They can also refer to any organic compounds in solid or liquid form that can release vapors at room temperature and pressure. Their composition is complex, including benzene series compounds, nitrogen compounds, and even benzene series organic compounds, which are known carcinogens. To actively promote the construction and rational layout of the VOCs monitoring and management system for environmental quality, it is essential to understand the key sources of VOCs, grasp their overall concentration levels and trends, and ensure problem-oriented monitoring of VOCs. Therefore, VOCs detection equipment is commonly used to detect the concentration of VOCs in the environment.

[0003] However, traditional detection equipment for volatile organic gases has the following drawbacks: low detection efficiency, inability to obtain detection results quickly and accurately, inability to meet the timeliness requirements in actual detection scenarios, and very difficult detection operation when the detection environment is complex. Utility Model Content

[0004] The purpose of this invention is to provide a detection device for volatile organic gases to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A detection device for volatile organic gases includes a housing. A display screen is mounted on the top of the front side of the housing. A power switch, a detection switch, a fan switch, and a keyboard are fixedly mounted on the bottom of the front side of the housing. A battery mounting slot is provided on the bottom of the back side of the housing, and a rechargeable battery is installed in the battery mounting slot. A charging connector and a data interface are provided at the bottom of the housing. An electrochemical sensor is fixedly mounted on the top of the housing. The sensing end of the electrochemical sensor is connected to two connectors. One interface of the two connectors is threadedly connected to a pipe connector. A flexible tube is fixedly connected to the pipe connector. The end of the flexible tube away from the pipe connector is fixedly connected to an air intake hood. A PCB board and a fan are fixedly mounted inside the housing. A control chip and a clock chip are fixedly mounted on the PCB board. A connecting pipe is fixedly connected to the air inlet of the fan. The end of the connecting pipe away from the fan is connected to the other interface of the two connectors. The electrochemical sensor determines the concentration of VOCs by measuring the change in electronic signal between the gas and the electrode. This method utilizes the chemical reaction between the gas and the electrode to generate current, and determines the concentration of VOCs by measuring the magnitude of the current.

[0006] Preferably, the charging connector is electrically connected to the rechargeable battery, which is electrically connected to the control chip via a power switch. The control chip is electrically connected to the detection switch, fan switch, keyboard, data interface, electrochemical sensor, and display screen. The control chip is electrically connected to the fan via a clock chip and to the charging circuit via the charging connector to charge the rechargeable battery. The rechargeable battery powers the electronic device. When the power switch is pressed, the device is powered on and begins operation. When the fan switch is pressed, the control chip controls the fan to operate for a pre-set time via the clock chip, ensuring that the air to be detected enters both connectors, avoiding continuous airflow that could affect the electrochemical sensor's sensing. When the detection switch is pressed, the control chip senses volatile organic gases via the electrochemical sensor and displays the detection information on the display screen. Control commands are input via the keyboard, and data is transmitted to an external server via the data interface.

[0007] Preferably, a mesh cover is fixedly installed on the top of the back of the housing to cover the air outlet of the fan, and the mesh cover protects the fan.

[0008] Preferably, a cover plate is installed at the bottom of the back of the housing to enclose the battery mounting slot, and the cover plate protects the rechargeable battery in the battery mounting slot.

[0009] Preferably, both sides of the housing are provided with multiple evenly distributed anti-slip protrusions, which serve to prevent slipping.

[0010] Preferably, the sensing end of the electrochemical sensor extends into the interior of the two connectors, enabling the electrochemical sensor to detect volatile organic gases.

[0011] Compared with the prior art, the advantages of this utility model are: the handheld detection device is connected to a hose with an external suction hood. The suction hood draws in air from the location to be detected. The air enters the two connectors through the hose and begins to sense volatile organic gases through the electrochemical sensor, thus realizing the detection of volatile organic gases. The suction hood extracts the volatile organic gases, making the operation simple and convenient, and improving the sensing accuracy and efficiency. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 This is a cross-sectional view of the present invention;

[0014] Figure 3 This is a rear view of the present invention;

[0015] Figure 4 A schematic diagram of the electrochemical sensor and the fan of this utility model.

[0016] In the diagram: 1. Housing; 2. Keyboard; 3. Display screen; 4. Two connectors; 5. Pipe connector; 6. Hose; 7. Suction hood; 8. Power switch; 9. Detection switch; 10. Fan switch; 11. Charging connector; 12. Data interface; 13. Anti-slip protrusion; 14. Battery mounting slot; 15. Rechargeable battery; 16. Cover plate; 17. PCB board; 18. Control chip; 19. Clock chip; 20. Fan; 21. Mesh cover; 22. Electrochemical sensor; 23. Connecting pipe. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figure 1-4 This utility model provides a detection device for volatile organic gases, including a housing 1. A display screen 3 is installed on the top of the front of the housing 1. A power switch 8, a detection switch 9, a fan switch 10, and a keyboard 2 are fixedly installed on the bottom of the front of the housing 1. A battery mounting slot 14 is provided on the bottom of the back of the housing 1, and a rechargeable battery 15 is installed in the battery mounting slot 14. A charging connector 11 and a data interface 12 are provided at the bottom of the housing 1. An electrochemical sensor 22 is fixedly installed on the top of the housing 1. The sensing end of the electrochemical sensor 22 is connected to two connectors 4. One interface of the two connectors 4 is threadedly connected to a pipe connector 5. The pipe connector 5 is fixedly connected to a flexible hose 6. The flexible hose 6 is away from the pipe connector 5. One end is fixedly connected to an air suction hood 7. Inside the housing 1, a PCB board 17 and a fan 20 are fixedly installed. A control chip 18 and a clock chip 19 are fixedly installed on the PCB board 17. The air inlet of the fan 20 is fixedly connected to a connecting pipe 23. The end of the connecting pipe 23 away from the fan 20 is connected to the other interface of the two connectors 4. The fan 20 drives the airflow. The person manually aligns the air suction hood 7 with the position to be detected and draws air through the air suction hood 7. The air enters the two connectors 4 through the hose 6 and is sensed by the electrochemical sensor 22 in the two connectors 4. The sensed information is transmitted to the control chip 18 through electronic signals and displayed on the display screen 3.

[0019] Preferably, the charging connector 11 is electrically connected to the rechargeable battery 15. The rechargeable battery 15 is electrically connected to the control chip 18 via the power switch 8. The control chip 18 is electrically connected to the detection switch 9, the fan switch 10, the keyboard 2, the data interface 12, the electrochemical sensor 22, and the display screen 3. The control chip 18 is electrically connected to the fan 20 via the clock chip 19. The charging connector 11 is connected to the charging line to charge the rechargeable battery 15. The rechargeable battery 15 serves as a power source for the electronic device. When the power switch 8 is pressed, the device is powered on and begins to work. After the fan switch 10 is pressed, the control chip 18 controls the fan 20 to work for a pre-set time via the clock chip 19 to ensure that the air to be detected enters the two connectors 4, avoiding the situation where continuously flowing air affects the sensing of the electrochemical sensor 22. After the detection switch 9 is pressed, the control chip 18 senses the volatile organic gases through the electrochemical sensor 22 and displays the detection information on the display screen 3. The keyboard 2 is used to input control commands, and data is transmitted to an external server via the data interface 12.

[0020] Preferably, a mesh cover 21 covering the air outlet of the fan 20 is fixedly installed on the top of the back of the housing 1, and the mesh cover 21 protects the fan 20.

[0021] Preferably, a cover plate 16 is installed at the bottom of the back of the housing 1 to enclose the battery mounting slot 14, and the cover plate 16 protects the rechargeable battery 15 in the battery mounting slot 14.

[0022] Preferably, both sides of the housing 1 are provided with a plurality of evenly distributed anti-slip protrusions 13, which serve to prevent slipping.

[0023] Preferably, the sensing end of the electrochemical sensor 22 extends into the interior of the two connectors 4, enabling the electrochemical sensor 22 to detect volatile organic gases.

[0024] In this embodiment of the application, the following steps are taken: First, align the suction hood 7 with the location where volatile organic gases need to be detected, press the power switch 8 to power on and start the device, then press the fan switch 10, and the fan 20 will work according to the preset time, drawing air from the location to be detected through the suction hood 7. The air enters the two connectors 4 through the hose 6. Then, press the detection switch 9, and the electrochemical sensor 22 will start to sense the volatile organic gases and transmit the sensed information to the control chip 18 in the form of electronic signals. The control chip 18 will then display the detection information on the display screen 3. The operator can input control commands through the keyboard 2 and can also use the data interface 12 to transmit data with an external server, facilitating data storage and further analysis.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detection device for volatile organic gases, comprising a housing (1), characterized in that: A display screen (3) is mounted on the top of the front side of the housing (1). A power switch (8), a detection switch (9), a fan switch (10), and a keyboard (2) are fixedly mounted on the bottom of the front side of the housing (1). A battery mounting slot (14) is provided on the bottom of the back side of the housing (1), and a rechargeable battery (15) is installed in the battery mounting slot (14). A charging connector (11) and a data interface (12) are provided at the bottom of the housing (1). An electrochemical sensor (22) is fixedly mounted on the top of the housing (1), and two connectors (4) are connected to the sensing end of the electrochemical sensor (22). One interface of the two connectors (4) is threadedly connected to a pipe connector (5), the pipe connector (5) is fixedly connected to a hose (6), and the end of the hose (6) away from the pipe connector (5) is fixedly connected to an air intake hood (7). A PCB board (17) and a fan (20) are fixedly installed inside the housing (1). A control chip (18) and a clock chip (19) are fixedly installed on the PCB board (17). The air inlet of the fan (20) is fixedly connected to a connecting pipe (23), and the end of the connecting pipe (23) away from the fan (20) is connected to the other interface of the two connectors (4).

2. The detection device for volatile organic gases according to claim 1, characterized in that: The charging connector (11) is electrically connected to the rechargeable battery (15), the rechargeable battery (15) is electrically connected to the control chip (18) through the power switch (8), the control chip (18) is electrically connected to the detection switch (9), the fan switch (10), the keyboard (2), the data interface (12), the electrochemical sensor (22) and the display screen (3), and the control chip (18) is electrically connected to the fan (20) through the clock chip (19).

3. The detection device for volatile organic gases according to claim 1, characterized in that: A mesh cover (21) covering the air outlet of the fan (20) is fixedly installed on the top of the back of the housing (1).

4. The detection device for volatile organic gases according to claim 1, characterized in that: The bottom of the back of the housing (1) is fitted with a cover plate (16) that encloses the battery mounting slot (14).

5. The detection device for volatile organic gases according to claim 1, characterized in that: The shell (1) has multiple evenly distributed anti-slip protrusions (13) on both sides.

6. The detection device for volatile organic gases according to claim 1, characterized in that: The sensing end of the electrochemical sensor (22) extends into the interior of the two connectors (4).

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