CN216594785U - Portable air formaldehyde concentration detector - Google Patents
Portable air formaldehyde concentration detector Download PDFInfo
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- CN216594785U CN216594785U CN202122104439.7U CN202122104439U CN216594785U CN 216594785 U CN216594785 U CN 216594785U CN 202122104439 U CN202122104439 U CN 202122104439U CN 216594785 U CN216594785 U CN 216594785U
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Abstract
The utility model relates to a portable air formaldehyde concentration detector, which is provided with a main panel, wherein a touch display screen is arranged on the main panel, an air pump is arranged on the inner side of the main panel, an air duct which runs through the inner side and the outer side of the main panel is arranged on the main panel, and the air pump is communicated with an inner port of the air duct through an air pipe; the main panel is also provided with a containing concave part which is used for placing a sampling tube containing a reaction reagent; the main panel is also provided with a detection hole, the detection hole and the inner side of the main panel are provided with a detection assembly, and the inner side of the main panel is also provided with a detection circuit board. The formaldehyde detector of the utility model fills the market blank of household standardized detecting instruments, can also be flexibly applied to other scene detection, has the essence of the detection flow completely conforming to the national standard and completely consistent with a professional detection mechanism, integrates a sampling device and a detecting device into a whole, reduces the product cost, is convenient to carry, optimizes related steps and ensures that the operation is simpler and more convenient.
Description
The technical field is as follows:
the utility model relates to the technical field of detecting instrument equipment, in particular to a portable air formaldehyde concentration detector.
Background art:
the air quality is an environmental problem which is increasingly concerned by people in recent years, the life of people is influenced constantly, formaldehyde belongs to harmful substances which are easy to harm the health of people in the air and exists in daily work and home living environments all the time, and when the concentration of the formaldehyde in the air exceeds the standard, the formaldehyde can have serious adverse effects on human bodies, so that the problem of how to detect and remove the formaldehyde in the air is urgently solved by people.
The formaldehyde detection has national standards, and the basic principle is that a sampler is used for collecting air with a certain volume, formaldehyde in the air reacts with a phenol reagent, namely MBTH reaction, to generate oxazine, and the oxazine reacts with an oxidation product of the phenol reagent in the presence of added color development agent ferric ions to generate a blue-green compound, wherein the content of the formaldehyde is in direct proportion to the color development depth, and can be well identified through color comparison, and the most common method is also a phenol reagent method recommended by national standard and particularly suitable for detecting the formaldehyde in a room. The problem in the prior art is that two instruments are respectively adopted for sampling and detection in the detection equipment, so that the detection equipment is inconvenient to carry, high in cost and complex to operate, is only suitable for professional detection units, and is not suitable for common families. Most of other types of detection equipment in the market are simple self-testing boxes or electrochemical instruments, and no equipment which is suitable for household use, completely conforms to national standards and is completely identical to a third-party detection process exists.
The utility model has the following contents:
the utility model aims to overcome the defects in the prior art and provides a portable air formaldehyde concentration detector.
The technical scheme adopted by the utility model is as follows: a portable air formaldehyde concentration detector is provided with a main panel, wherein a screen window is arranged on the main panel, and a touch display screen is arranged at the screen window and on the inner side of the main panel; an air pump is arranged on the inner side of the main panel, an air duct which runs through the inner side and the outer side of the main panel is arranged on the main panel, and the air pump is communicated with an inner port of the air duct through an air pipe; the main panel is also provided with an accommodating concave part extending towards the inner side, and the accommodating concave part is used for placing a sampling tube containing a reaction reagent; the main panel is also provided with a detection hole, a detection assembly is arranged at the detection hole and on the inner side of the main panel, the detection assembly comprises a tubular body capable of accommodating a tube to be tested, a detection light emitting part and a detection light receiving sensor which are oppositely arranged on the side wall of the tubular body, and the open end of the tubular body is communicated with the detection hole; and a detection circuit board is also arranged on the inner side of the main panel, and the detection circuit board is connected with the touch display screen, the air pump, the detection light emitting part and the detection light receiving sensor through leads.
Further, an air flow regulating valve is connected between the air pump and the air pipe at the inner port of the air vent pipeline.
Furthermore, the tubular body of the detection assembly is cylindrical, and the side wall of the bottom of the tubular body is provided with a hole for installing the detection light emitting part and the detection light receiving sensor.
Furthermore, a battery jar which is concave towards the inner side is formed on the main panel, and an openable battery cover is arranged on the battery jar.
The accommodating concave part, the vent pipeline and the battery jar on the main panel are integrally formed with the main panel.
Furthermore, a switch hole is arranged on the main panel and a main switch connected with the detection circuit board is arranged on the main panel.
Furthermore, the detector also comprises a box body and a box cover, wherein the main panel is arranged at the opening part of the box body, the air pump, the detection circuit board, the touch display screen and the detection assembly are all hidden inside the box body, and the box wall of the box body is provided with a ventilation grid.
Furthermore, the inner side of the box cover is provided with a buckling part or a containing part.
By adopting the structure, the formaldehyde in the air can fully react with the detection reagent by using the air pump and the sampling tube, and the concentration of the formaldehyde can be obtained by performing optical detection and analysis on the reaction liquid, so that the detection accuracy is high. The formaldehyde detector of the utility model fills the market blank of household standardized detecting instruments, can also be flexibly applied to other scene detection, has the essence of the detection flow completely conforming to the national standard and completely consistent with a professional detection mechanism, integrates a sampling device and a detecting device into a whole, reduces the product cost, is convenient to carry, optimizes related steps and ensures that the operation is simpler and more convenient.
Description of the drawings:
FIG. 1 is a perspective view of a main panel of the monitor of the present invention;
FIGS. 2 and 3 are top and bottom views of the main panel and its upper components of the monitor of the present invention.
Fig. 4 is an overall perspective view of one embodiment of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1 to fig. 3, the technical solution adopted by the present invention is as follows: a portable air formaldehyde concentration detector is provided with a main panel 1, wherein a screen window 101 is arranged on the main panel 1, and a touch display screen 2 is arranged at the screen window 101 and on the inner side of the main panel 1; an air pump 3 is arranged on the inner side of the main panel 1, an air duct 11 penetrating the inner side and the outer side of the main panel 1 is arranged on the main panel 1, and the air pump 3 is communicated with an inner port of the air duct 11 through an air pipe 31; a containing concave part 12 extending towards the inner side is further arranged on the main panel 1, and the containing concave part 12 is used for placing a sampling pipe containing a reaction reagent (such as a phenolic reagent); the main panel 1 is further provided with a detection hole 13, a detection assembly 4 is arranged at the detection hole 13 and on the inner side of the main panel 1, the detection assembly 4 comprises a tubular body 41 capable of accommodating a tube to be tested, a detection light emitting part 42 and a detection light receiving sensor 43 which are oppositely arranged on the side wall of the tubular body 41, and the open end of the tubular body 41 is communicated with the detection hole 13; a detection circuit board 5 is further mounted on the inner side of the main panel 1, and the detection circuit board 5 is connected to the touch display screen 2, the air pump 3, the detection light emitting unit 42, and the detection light receiving sensor 43 through wires (the wires are omitted in the figure). An air flow regulating valve 32 is further connected between the air pump 3 and the air pipe 31 of the inner port of the air duct 11, and the air flow regulating valve 32 is used for calibrating the standard air flow during sampling before the equipment leaves a factory, so that the sampling flow is constant during subsequent detection at each time, inaccurate detection caused by random flow regulation is avoided, and more scientific data is measured.
The tubular body 41 of the detection assembly 4 is cylindrical to accommodate a test tube to be tested, and the bottom side wall of the tubular body 41 is perforated to install the detection light emitting part 42 and the detection light receiving sensor 43.
Furthermore, a battery groove 14 recessed towards the inner side is formed on the main panel 1, and an openable battery cover (not shown) is arranged on the battery groove 14 so as to install a battery or a rechargeable battery and supply power to the detection circuit board 5; a switch hole 15 is also arranged on the main panel 1, and a main switch 6 connected with the detection circuit board 5 is installed on the main panel so as to control the connection and disconnection of the detection circuit board and a power supply.
In this embodiment, the accommodating recess 12, the vent duct 11, and the battery case 14 on the main panel 1 are integrally formed with the main panel 1, and thus, separate manufacturing and assembly are not required, which can save cost, simplify assembly steps, and improve efficiency.
As shown in fig. 4, the detector further includes a box body 7 and a box cover 71, the main panel 1 is installed at an opening of the box body 7, the air pump 3, the detection circuit board 5, the touch display screen 2 and the detection component 4 are all hidden inside the box body, and a ventilation grid is arranged on a box wall of the box body 7 so as to exhaust air.
Further, a fastening portion or a receiving portion (not shown) for fixing the accessories such as the test tube and the air tube is provided inside the box cover 71, so as to carry the accessories such as the sampling tube, the air tube and the backup battery randomly. The box cover and the box body are respectively provided with a hasp and a handle, so that the carrying is convenient.
When in use, the reaction sampling tube, the detection test tube, the external hose and other accessories are matched for use, the sampling tube filled with the reaction reagent is firstly placed in the containing concave part 12 of the main panel 1, the sampling tube is provided with an air inlet pipeline extending into the reaction reagent, the side part of the upper end of the sampling tube is provided with an air outlet pipe orifice which is communicated with the outer port of the air duct 11 on the main panel 1 through an external hose, then a power supply is switched on to supply power to the detection circuit board 5, the touch display screen 2 works, the air pump 3 is started to start sampling through the touch display screen 2, the air pump 3 performs suction action when working, so that external air enters the sampling pipe through the air inlet pipeline of the reaction sampling pipe and fully contacts and reacts with the reaction reagent to dissolve formaldehyde in the reaction reagent, then the air is discharged through an external hose, an air duct 11 on the main panel 1, a built-in air pipe 31 and an air pump 3 to form an air flow loop; after reacting for a period of time, obtaining a sample to be detected, stopping the operation of the air pump 3, pouring a reagent into another detection test tube (or directly using a reagent sampling tube), placing the tube to be detected into the tubular body 41 of the detection assembly 4 from the detection hole 13 of the main panel 1, starting detection, and directly displaying the formaldehyde concentration on the touch display screen 2 after conversion of data such as light wavelength, refractive index color and the like obtained by the detection light emitting part 42 and the detection light receiving sensor 43 through a software program. The detector takes the air in the space where the detector is located in real time as a sampling sample, the detection data is more accurate in the mode, and the detector is more convenient to use and store.
By adopting the structure, formaldehyde in the air is fully reacted with the detection reagent by using the air pump and the sampling pipe, and the concentration of the formaldehyde is obtained by optical detection and analysis of the reaction liquid, so that the detection accuracy is high; the detector adopts a retractable box body structure, is convenient to carry, can be flexibly suitable for detecting various scenes, and is lower in cost and more convenient to use.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.
Claims (8)
1. The utility model provides a portable air formaldehyde concentration detector, this detector has a main panel, its characterized in that: a screen window is arranged on the main panel, and a touch display screen is arranged at the screen window and on the inner side of the main panel; an air pump is arranged on the inner side of the main panel, an air duct which runs through the inner side and the outer side of the main panel is arranged on the main panel, and the air pump is communicated with an inner port of the air duct through an air pipe; the main panel is also provided with an accommodating concave part extending towards the inner side; the main panel is also provided with a detection hole, a detection assembly is arranged at the detection hole and on the inner side of the main panel, the detection assembly comprises a tubular body capable of accommodating a tube to be tested, a detection light emitting part and a detection light receiving sensor which are oppositely arranged on the side wall of the tubular body, and the open end of the tubular body is communicated with the detection hole; and a detection circuit board is also arranged on the inner side of the main panel, and the detection circuit board is connected with the touch display screen, the air pump, the detection light emitting part and the detection light receiving sensor through leads.
2. The portable air formaldehyde concentration detector according to claim 1, characterized in that: an air flow regulating valve is also connected between the air pump and the air pipe at the inner port of the air duct.
3. The portable air formaldehyde concentration detector according to claim 1, characterized in that: the tubular body of the detection assembly is cylindrical, and the side wall of the bottom of the tubular body is provided with an opening for installing the detection light emitting part and the detection light receiving sensor.
4. The portable air formaldehyde concentration detector according to claim 1, characterized in that: a battery jar sunken towards the inner side is also formed on the main panel, and an openable battery cover is arranged on the battery jar.
5. The portable air formaldehyde concentration detector according to claim 4, characterized in that: the accommodating concave part, the vent pipeline and the battery jar on the main panel are integrally formed with the main panel.
6. The portable air formaldehyde concentration detector according to claim 1, characterized in that: the main panel is also provided with a switch hole and a main switch connected with the detection circuit board.
7. The portable air formaldehyde concentration detector according to claim 1, wherein: the detector also comprises a box body and a box cover, wherein the main panel is arranged at the opening part of the box body, the air pump, the detection circuit board, the touch display screen and the detection assembly are all hidden inside the box body, and the box wall of the box body is provided with a ventilation grid.
8. The portable air formaldehyde concentration detector according to claim 7, characterized in that: the inner side of the box cover is provided with a buckling part or a containing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122104439.7U CN216594785U (en) | 2021-09-01 | 2021-09-01 | Portable air formaldehyde concentration detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122104439.7U CN216594785U (en) | 2021-09-01 | 2021-09-01 | Portable air formaldehyde concentration detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216594785U true CN216594785U (en) | 2022-05-24 |
Family
ID=81636854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122104439.7U Active CN216594785U (en) | 2021-09-01 | 2021-09-01 | Portable air formaldehyde concentration detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216594785U (en) |
-
2021
- 2021-09-01 CN CN202122104439.7U patent/CN216594785U/en active Active
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