CN207425083U - A kind of calibration mask for changing airflow direction - Google Patents
A kind of calibration mask for changing airflow direction Download PDFInfo
- Publication number
- CN207425083U CN207425083U CN201721639824.9U CN201721639824U CN207425083U CN 207425083 U CN207425083 U CN 207425083U CN 201721639824 U CN201721639824 U CN 201721639824U CN 207425083 U CN207425083 U CN 207425083U
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- CN
- China
- Prior art keywords
- drainage
- case
- drainage tube
- guide plate
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of calibration masks for changing airflow direction, and including case, the lower end of case is provided with air inlet pipe and air outlet pipe；Drainage component is installed in case, the drainage component includes drainage tube and drainage guide plate, and the lower end of drainage tube is connected with the gas outlet of air inlet pipe, and the upper end closed of drainage tube；Several ventholes are evenly equipped on the outer circle wall of drainage tube；Both sides positioned at drainage tube in case are symmetrically installed with drainage guide plate, are both provided with gas port on each drainage guide plate, gas port is corresponding with venthole.The utility model adds drainage component in case, solves to examine and determine data error caused by situations such as gas atmosphere flow is unstable.
Description
Technical field
The utility model belongs to alarm calibration equipment technical field, and in particular to a kind of calibration for changing airflow direction
Cover.
Background technology
When the effect of gas leakage detection alarm is flammable in industrial environment or release of toxic gas, work as gas alarm
Device detect gas concentration reach explosion or be poisoned alarm set critical point when, alarm will send alarm signal, with
Work is reminded to take safety measures, and drives air draft, cut-out, spray system, prevents explosion, fire, intoxication accident, so as to
It guarantees safe production, is the soldier at the head of a formation of security warning.
Existing calibration mask in use, calibrating gas is entered by the air inlet of calibration mask in calibration mask, but due to
Gas is direct current, and the size of gas flow has an impact the error of indication of probe sensor, causes calibrating inaccurate.
Utility model content
The utility model provides a kind of calibration mask for changing airflow direction, by the intake method and the air-flow side that change gas
To solving the problems, such as that existing calibration mask calibrating gas pneumatic flow is unstable.
In order to solve the above technical problems, technical solution is as follows used by the utility model：
A kind of calibration mask for changing airflow direction, including case, air inlet pipe and air outlet pipe are provided in the lower end of case；
Drainage component is installed, the drainage component includes drainage tube and drainage guide plate, the lower end of drainage tube and air inlet pipe in case
Gas outlet is connected, and the upper end closed of drainage tube；Several ventholes are evenly equipped on the outer circle wall of drainage tube；In case
Drainage guide plate is symmetrically installed with positioned at the both sides of drainage tube, is both provided with gas port on each drainage guide plate, gas port is with going out
Stomata is corresponding.
Drainage baffle is vertically installed in the upper end of drainage tube, drainage baffle further limits airflow direction, makes gas all
It is sent out from the gas port on drainage guide plate.
The utility model adds drainage component in case, solves to examine and determine number caused by situations such as gas atmosphere flow is unstable
According to error.In use, gas enters drainage tube from air inlet pipe, and then discharges from the venthole of drainage tube, due to draining guide plate
Setting substantial amounts of gas can be caused all to be discharged to from gas port in case, air-flow is avoided to be directly blown onto on probe sensor, and
And in order to preferably change gas direction, in the vertically disposed drainage baffle in drainage tube upper end, stop the gas that venthole comes out
Directly rise, dramatically influence of the air-flow size to the probe sensor error of indication, improve calibrating data accuracy and work
Make quality.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the utility model structure diagram one.
Fig. 2 is the utility model structure diagram two.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making the creative labor
All other embodiments obtained shall fall within the protection scope of the present invention.
As shown in Figs. 1-2, a kind of calibration mask for changing airflow direction, including case 1, be provided in the lower end of case 1 into
Tracheae 2 and air outlet pipe 3；Drainage component is installed in case 1, the drainage component includes drainage tube 5 and drainage guide plate 6, draws
The lower end of flow tube 5 is connected with the gas outlet of air inlet pipe 2, and the upper end closed of drainage tube 5；On the outer circle wall of drainage tube 5
It is evenly equipped with several ventholes 7；Drainage guide plate 6 is symmetrically installed with positioned at the both sides of drainage tube 5 in case 1, is led in each drainage
Gas port 8 is both provided on plate 6, gas port 8 is corresponding with venthole 7.
Further to limit airflow direction, drainage baffle 9 is vertically installed in the upper end of drainage tube 5, drainage baffle makes gas
Body is all sent out from the gas port on drainage guide plate.
The utility model adds drainage component in case, solves to examine and determine number caused by situations such as gas atmosphere flow is unstable
According to error.In use, gas enters drainage tube from air inlet pipe, and then discharges from the venthole of drainage tube, due to draining guide plate
Setting substantial amounts of gas can be caused all to be discharged to from gas port in case, air-flow is avoided to be directly blown onto on probe sensor, and
And in order to preferably change gas direction, in the vertically disposed drainage baffle in drainage tube upper end, stop the gas that venthole comes out
Directly rise, dramatically influence of the air-flow size to the probe sensor error of indication, improve calibrating data accuracy and work
Make quality.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modifications, equivalent replacements and improvements are made should be included in the utility model
Protection domain within.
Claims (2)
1. a kind of calibration mask for changing airflow direction, it is characterised in that：Including case（1）, in case（1）Lower end be provided with into
Tracheae（2）And air outlet pipe（3）；In case（1）Drainage component is inside installed, the drainage component includes drainage tube（5）And drainage
Guide plate（6）, drainage tube（5）Lower end and air inlet pipe（2）Gas outlet be connected, and drainage tube（5）Upper end closed；It is draining
Pipe（5）Outer circle wall on be evenly equipped with several ventholes（7）；In case（1）It is interior to be located at drainage tube（5）Both sides be symmetrically installed with
Drain guide plate（6）, in each drainage guide plate（6）On be both provided with gas port（8）, gas port（8）With venthole（7）It is corresponding.
2. the calibration mask according to claim 1 for changing airflow direction, it is characterised in that：In drainage tube（5）Upper end hang down
Drainage baffle directly is installed（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721639824.9U CN207425083U (en) | 2017-11-30 | 2017-11-30 | A kind of calibration mask for changing airflow direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721639824.9U CN207425083U (en) | 2017-11-30 | 2017-11-30 | A kind of calibration mask for changing airflow direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207425083U true CN207425083U (en) | 2018-05-29 |
Family
ID=62396701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721639824.9U Expired - Fee Related CN207425083U (en) | 2017-11-30 | 2017-11-30 | A kind of calibration mask for changing airflow direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207425083U (en) |
-
2017
- 2017-11-30 CN CN201721639824.9U patent/CN207425083U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20211130 |