Portable gas analyzer

Abstract

The utility model discloses a portable gas analyzer which comprises a shell, a sinking groove is formed in the shell, an electric control module is arranged in the sinking groove, a gas suction assembly is further arranged on one side of the shell and comprises an arc-shaped pipe fixedly connected with the shell, gas ports matched with the arc-shaped pipe are formed in the two adjacent sides of the shell, and a gas inlet is formed in the other side of the shell. And a connecting shell is arranged in the shell. According to the intelligent gas analyzer, the gas suction assembly is arranged, when a user analyzes gas, the rotating rod is rotated to drive the driving gear to rotate, then the fan blades are driven to rotate, air is driven to pass through the arc-shaped pipe, gas information is collected in cooperation with the sensor, and then electric signals are processed through the PCB and then transmitted to an intelligent mobile phone through the USB interface; the mobile phone carried by people in daily life is fully utilized as an electric control module of the gas analyzer, so that the size of the gas analyzer is further reduced, and the equipment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air detection equipment, in particular to a portable gas analyzer. Background Art

[0002] A gas analyzer is an instrument for gas analysis and detection, including: portable gas analyzer, handheld gas analyzer, fixed gas analyzer, on-line gas analyzer, etc. It mainly uses gas sensors to detect the types of gases existing in the environment. A gas sensor is a sensor used to detect the components and content of gases. A gas detector can detect a variety of gases and is widely used in on-site detection in various places such as petrochemical, coal, metallurgy, chemical industry, municipal gas, and environmental monitoring.

[0003] In a portable infrared gas analyzer disclosed in the existing patent CN207992051 U, a sampling gun and an infrared analysis component are used to analyze the components of flue gas, which is mainly used for analyzing the components of flue gas such as NOx, SO2, CO, O2, CO2, etc. in the emissions of fixed pollution sources. However, this type of analyzer is relatively large in size and often needs to be carried in a toolbox, and the overall structure is relatively complex. Therefore, we propose a portable gas analyzer to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a portable gas analyzer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A portable gas analyzer includes a housing, a sunken groove is provided on the housing, and an electronic control module is arranged in the sunken groove. An air suction component is also arranged on the side of the housing, wherein:

[0007] The air suction component includes an arc-shaped tube fixedly connected to the housing. Air ports matching the arc-shaped tube are opened on two adjacent sides of the housing. A connecting shell is arranged in the housing and is communicated with the arc-shaped tube. One side of the housing is rotatably connected to a driving rod through a one-way bearing, and a driving gear is fixedly connected to the one-way bearing. A driven gear meshing with the driving gear is rotatably connected in the housing, and a rotating rod is fixedly connected to the driven gear. A fan blade is fixedly connected to the rotating rod, and the fan blade is arranged in the connecting shell;

[0008] The electronic control module includes a PCB board, a sensor is electrically connected to the PCB board, and the sensor is arranged in the arc-shaped tube. The PCB board is also electrically connected to a power supply wire, the power supply wire penetrates through the housing and extends into the sunken groove, and a USB interface is arranged on the power supply wire.

[0009] Preferably, a chute is provided on the upper surface of the housing, and a compression spring is fixedly connected in the chute. Both ends of the compression spring are fixedly connected with connecting rods, and the connecting rods are slidably connected with the chute. One end of each of the two connecting rods away from each other is fixedly connected with a clamping plate.

[0010] Preferably, a counterweight block is also fixedly sleeved on the rotating rod, and the outer ring thickness of the counterweight block is greater than the inner ring thickness.

[0011] Preferably, a dust-proof net is arranged in one of the air inlets.

[0012] Preferably, the number of teeth of the driving gear is greater than the number of teeth of the driven gear.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, by providing an air intake assembly, when a user performs gas analysis, the driving gear is driven to rotate by rotating the rotating rod, and then the fan blade is driven to rotate, driving air through the arc-shaped tube, so as to cooperate with the sensor to complete the collection of gas information. Then, after the PCB board processes the electrical signal, it is transmitted to the smart phone through the USB interface. Making full use of the mobile phone carried by people daily as the electronic control module of the gas analyzer not only further reduces the size of the gas analyzer, but also reduces the equipment cost;

[0015] 2. In the present utility model, by providing a chute in cooperation with a compression spring, a simple mobile phone holder is formed, and the portable analyzer can be clamped on the smart phone, further facilitating the user to carry the gas analyzer, improving its portability, and being more convenient to use at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a portable gas analyzer proposed by the present utility model;

[0017] Figure 2 is a schematic cross-sectional structure diagram of a portable gas analyzer proposed by the present utility model;

[0018] Figure 3 is a schematic side cross-sectional structure diagram of a portable gas analyzer proposed by the present utility model.

[0019] In the figure: 1. Housing; 2. Sunk groove; 3. Air inlet; 4. Connecting shell; 5. Arc-shaped tube; 6. Driving rod; 7. Driving gear; 8. Driven gear; 9. Rotating rod; 10. Fan blade; 11. PCB board; 12. Sensor; 13. USB interface; 14. Compression spring; 15. Connecting rod; 16. Clamping plate; 17. Counterweight block; 18. Dust-proof net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1 - 3 A portable gas analyzer comprises a housing 1, a sink 2 is provided on the housing 1, an electric control module is provided in the sink 2, and an air suction component is also provided on the side of the housing 1, wherein:

[0022] The air intake assembly includes an arc tube 5 fixedly connected to the shell 1, and air ports 3 matching the arc tube 5 are provided on adjacent two sides of the shell 1. A connecting shell 4 is provided in the shell 1, and the connecting shell 4 is connected to the arc tube 5. A driving rod 6 is rotatably connected to one side of the shell 1 through a one-way bearing, and a driving gear 7 is fixedly connected to the one-way bearing. A driven gear 8 meshing with the driving gear 7 is rotatably connected in the shell 1, and a rotating rod 9 is fixedly connected to the driven gear 8. The number of teeth of the driving gear 7 is greater than the number of teeth of the driven gear 8. A fan blade 10 is fixedly connected to the rotating rod 9, and the fan blade 10 is arranged in the connecting shell 4. In this design, the user drives the driven gear 8 to rotate by the driving gear 7 by toggling the rotating rod 9 back and forth, thereby driving the fan blade 10 to rotate, so that the air passes through the arc tube 5 driven by the fan blade 10, so that the sensor 12 can analyze the gas composition;

[0023] The electric control module includes a PCB board 11, and a sensor 12 is electrically connected to the PCB board 11. The sensor 12 is arranged in the arc tube 5. The PCB board 11 is also electrically connected to a power supply line, which runs through the shell 1 and extends to the sink 2. A USB interface 13 is arranged on the power supply line, wherein the USB interface 13 is used to realize data transmission and power supply. Existing smart phones basically support OTG and can output 5V1A current to the outside to realize power supply for the PCB board 11 and the sensor 12. The electrical signal generated by the sensor 12 can be processed by installing a supporting APP on the smart phone after being converted by the PCB board 11, and the smart phone can be fully utilized to realize functions such as data display and wireless data transmission. However, since the mobile phone battery is used to output power to the outside, the fan is manually driven to rotate to realize gas inhalation to ensure the gas analysis effect.

[0024] Furthermore, a chute is provided on the upper surface of the housing 1, and a compression spring 14 is fixedly connected in the chute. Both ends of the compression spring 14 are fixedly connected with connecting rods 15, and the connecting rods 15 are slidably connected with the chute. One end of each of the two connecting rods 15 away from each other is fixedly connected with a clamping plate 16. In this design, since the sizes of mobile phone models on the market are different, the compression spring 14 is provided to drive the connecting rods 15 and the clamping plates 16, and the elasticity of the compression spring 14 is used to drive the clamping plates 16 to clamp the mobile phone, so as to relatively fix the mobile phone and this portable analyzer. This not only facilitates the user to carry this portable gas analyzer, but also enables the user to operate without holding the analyzer and the mobile phone with both hands respectively.

[0025] Furthermore, a counterweight 17 is fixedly sleeved on the rotating rod 9, and the outer ring thickness of the counterweight 17 is greater than the inner ring thickness. The counterweight 17 with a thicker outer ring is provided to drive the fan blade 10 to rotate by using the inertia of the counterweight 17 itself, so that when the user rotates the rotating rod 9, the fan blade 10 can maintain a rotating state, extend the rotation time, and ensure the induction time of the sensor 12 to the gas.

[0026] Furthermore, a dust-proof net 18 is provided in one of the air ports 3.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A portable gas analyzer, characterized in that, It includes a housing (1), a sunk groove (2) is provided on the housing (1), and an electronic control module is arranged in the sunk groove (2). An air suction component is also provided on the side of the housing (1), where: The air suction component includes an arc-shaped pipe (5) fixedly connected to the housing (1). Air ports (3) matching the arc-shaped pipe (5) are opened on two adjacent sides of the housing (1). A connecting shell (4) is arranged in the housing (1), and the connecting shell (4) is communicated with the arc-shaped pipe (5). A driving rod (6) is rotatably connected to one side of the housing (1) through a one-way bearing, and a driving gear (7) is fixedly connected to the one-way bearing. A driven gear (8) meshing with the driving gear (7) is rotatably connected in the housing (1), and a rotating rod (9) is fixedly connected to the driven gear (8). A fan blade (10) is fixedly connected to the rotating rod (9), and the fan blade (10) is arranged inside the connecting shell (4); The electronic control module includes a PCB board (11). A sensor (12) is electrically connected to the PCB board (11), and the sensor (12) is arranged inside the arc-shaped pipe (5). The PCB board (11) is also electrically connected to a power supply wire. The power supply wire penetrates through the housing (1) and extends into the sunk groove (2), and a USB interface (13) is arranged on the power supply wire.

2. The portable gas analyzer according to claim 1, characterized in that, A sliding groove is opened on the upper surface of the housing (1), and a compression spring (14) is fixedly connected inside the sliding groove. Both ends of the compression spring (14) are fixedly connected with connecting rods (15), and the connecting rods (15) are slidably connected to the sliding groove. One end of each of the two connecting rods (15) away from each other is fixedly connected with a clamping plate (16).

3. A portable gas analyzer according to claim 1, characterized in that, A counterweight block (17) is also fixedly sleeved on the rotating rod (9), and the outer ring thickness of the counterweight block (17) is greater than the inner ring thickness.

4. A portable gas analyzer according to claim 1, characterized in that, A dust-proof net (18) is arranged in one of the air ports (3).

5. A portable gas analyzer according to claim 1, characterized in that, The number of teeth of the driving gear (7) is greater than the number of teeth of the driven gear (8).

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