CN209372818U - A kind of formaldehyde examination device - Google Patents
A kind of formaldehyde examination device Download PDFInfo
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- CN209372818U CN209372818U CN201822244307.2U CN201822244307U CN209372818U CN 209372818 U CN209372818 U CN 209372818U CN 201822244307 U CN201822244307 U CN 201822244307U CN 209372818 U CN209372818 U CN 209372818U
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- formaldehyde
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Abstract
The utility model relates to formaldehyde testing equipment fields, more particularly to a kind of formaldehyde examination device, including shell, piston, push rod, formaldehyde sensor, microcontroller and display screen, there are two the piston is set in parallel, two pistons and shell define Standard Gases body cavity jointly, the utility model structure is simple, design is reasonable, push rod is pushed to be located at formaldehyde sensor between two pistons first before being detected, it is returned to zero using the endoceliac air PARA FORMALDEHYDE PRILLS(91,95) detection device of Standard Gases, it pulls push rod to be connected to formaldehyde sensor with test side later to detect indoor formaldehyde, compared to traditional methylene oxide detecting instrument, the utility model is easy to use, zeroing is accurate, detection accuracy is high.
Description
Technical field
The utility model relates to formaldehyde testing equipment field more particularly to a kind of formaldehyde examination devices.
Background technique
Methylene oxide detecting instrument is a kind of instrument for detecting formaldehyde.The scene of realizing fast implements semidefinite to formaldehyde in indoor air
Succinct, small in size, the easy to carry use of amount, characteristic structure and intuitive.It can be suitable for room, interior, residential area, public extensively
The in situ quantitation qualitative detection of formaldehyde in place, life area and factories and miness workshop air.
Methylene oxide detecting instrument currently on the market before each is used, needs to return to zero in outdoor environment, then sharp
With the detector test indoor formaldehyde after zeroing, detection efficiency is low, and accuracy is poor.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of be not necessarily to
The formaldehyde examination device of outdoor zeroing.
The utility model is to be achieved by the following technical programs:
A kind of formaldehyde examination device characterized by comprising both ends open shell in a tubular form, the work being set in the housing
Plug, with piston it is affixed for push piston push rod, be embedded in inner walls for detect content of formaldehyde formaldehyde sensor, with
The microcontroller that formaldehyde sensor is electrically connected and the display screen being fixed in outside shell, the shell are hand close to one end of push rod
End is held, the other end is test side,
There are two the piston is set in parallel, affixed by connecting rod between two pistons, two pistons surround jointly with shell
Standard Gases body cavitys, calibrating gas is intracavitary filled with the air without formaldehyde,
The microcontroller is used to receive the signal of formaldehyde sensor transmission, and the display screen and microcontroller are electrically connected
For receiving and showing content of formaldehyde numerical value.
Preferably, the test side opening is equipped with limiting section.
Preferably, the test side opening is connected with Air Filter.
The beneficial effects of the utility model are:
The utility model structure is simple, and design rationally, pushes push rod that formaldehyde sensor is made to be located at two first before being detected
Between a piston, is returned to zero using the endoceliac air PARA FORMALDEHYDE PRILLS(91,95) detection device of Standard Gases, pull push rod to make formaldehyde sensor later
It is connected to test side and indoor formaldehyde is detected, compared to traditional methylene oxide detecting instrument, the utility model is easy to use, zeroing
Accurately, detection accuracy is high.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model.
In figure: 1. shells, 2. pistons, 3. push rods, 4. formaldehyde sensors, 5. microcontrollers, 6. display screens, 7. connecting rods, 8.
Standard Gases body cavity, 9. limiting sections, 10. Air Filters.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing
The utility model is described in further detail with most preferred embodiment.
As shown, the utility model includes: both ends open shell 1 in a tubular form, the piston 2 that is set in the housing, with it is living
It fills in the affixed push rod 3 for pushing piston, be embedded in inner walls for detecting the formaldehyde sensor 4 and formaldehyde of content of formaldehyde
The microcontroller 5 that sensor is electrically connected and the display screen 6 being fixed in outside shell, the shell is hand-held close to one end of push rod
End, the other end is test side,
There are two the piston is set in parallel, affixed by connecting rod 7 between two pistons, two pistons surround jointly with shell
Standard Gases body cavity 8, calibrating gas is intracavitary filled with the air without formaldehyde, and user can pull push rod in formaldehydeless air
Piston is pulled out from shell and is again pushed into, so that the air in Standard Gases body cavity is replaced, to ensure the precision to return to zero,
The microcontroller is used to receive the signal of formaldehyde sensor transmission, and the display screen and microcontroller are electrically connected
For receiving and showing content of formaldehyde numerical value.
When in use, promotion push rod first makes formaldehyde sensor be located at two pistons to formaldehyde examination device in the present embodiment
Between, it is returned to zero using the air for being free of formaldehyde in Standard Gases body cavity to detection device, observes the formaldehyde numerical value shown in display screen,
After numerical stability i.e. zeroing finish, then pull piston be connected to formaldehyde sensor with test side, thus to indoor formaldehyde into
Row detection, the concentration of formaldehyde in current environment can be shown by display screen, pushes push rod to pass formaldehyde again after detection
Sensor is between two pistons, can be returned to zero again to detection device, detection can be directly carried out when detecting next time and no longer needed to
Secondary zeroing.
Preferably, the test side opening is equipped with limiting section 9, and limiting section is for resisting piston, when piston and limiting section
When offseting, formaldehyde sensor is located between two pistons, convenient for storage and transport.
Preferably, the test side opening is connected with Air Filter 10, prevents the dust in air from entering in test side, shadow
Ring detection accuracy.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of formaldehyde examination device characterized by comprising both ends open shell in a tubular form, the piston being set in the housing,
With the affixed push rod for pushing piston of piston, be embedded in inner walls for detecting the formaldehyde sensor and first of content of formaldehyde
The microcontroller that aldehyde sensor is electrically connected and the display screen being fixed in outside shell, the shell is hand-held close to one end of push rod
End, the other end is test side,
Affixed by connecting rod between two pistons there are two the piston is set in parallel, two pistons and shell define mark jointly
Quasi- air chamber, calibrating gas is intracavitary to be filled with the air without formaldehyde,
The microcontroller is used to receive the signal of formaldehyde sensor transmission, and the display screen is used for microcontroller electric connection
It receives and shows content of formaldehyde numerical value.
2. a kind of formaldehyde examination device according to claim 1, which is characterized in that the test side opening is equipped with limit
Portion.
3. a kind of formaldehyde examination device according to claim 1, which is characterized in that the test side opening is connected with anti-
Dirt net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244307.2U CN209372818U (en) | 2018-12-29 | 2018-12-29 | A kind of formaldehyde examination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244307.2U CN209372818U (en) | 2018-12-29 | 2018-12-29 | A kind of formaldehyde examination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209372818U true CN209372818U (en) | 2019-09-10 |
Family
ID=67828110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822244307.2U Active CN209372818U (en) | 2018-12-29 | 2018-12-29 | A kind of formaldehyde examination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209372818U (en) |
-
2018
- 2018-12-29 CN CN201822244307.2U patent/CN209372818U/en active Active
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