CN209247259U - Air-tightness detection device - Google Patents
Air-tightness detection device Download PDFInfo
- Publication number
- CN209247259U CN209247259U CN201822226479.7U CN201822226479U CN209247259U CN 209247259 U CN209247259 U CN 209247259U CN 201822226479 U CN201822226479 U CN 201822226479U CN 209247259 U CN209247259 U CN 209247259U
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- air
- liquid storage
- storage bottle
- gas
- tracheae
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Abstract
The utility model provides a kind of air-tightness detection device, is related to air-leakage test technical field, comprising: feeder, liquid storage bottle, tracheae and pressure gauge；Wherein, liquid storage bottle has air inlet and air outlet, and gas is pressed into liquid storage bottle by feeder, and the gas outlet of liquid storage bottle connects the air inlet of sealing structure to be detected by tracheae, and the gas outlet of sealing structure to be detected connects pressure gauge.The apparatus structure is simple, small in size, can quickly detect the air-tightness of sealing structure.
Description
Technical field
The utility model relates to air-leakage test technical fields, in particular to a kind of air-tightness detection device.
Background technique
Often it is related to some sealing structures in industrial production or daily life, air-tightness is to measure these sealing knots
The important indicator of structure performance.The general volume of device of measurement sealing structure air-tightness is larger at present, and structure is complicated, detection time
It is long.Therefore how to design a kind of small-sized, structure is simple, and the device that can quickly detect sealing structure air-tightness, which becomes, to be needed to solve
Certainly the technical issues of.
Utility model content
The utility model aims to solve at least one of above-mentioned technical problems existing in the prior art or related technologies, open
A kind of small-sized, structure is simple, can quickly detect the air-tightness detection device of sealing structure air-tightness.
The utility model is to be achieved by the following technical programs:
A kind of air-tightness detection device, comprising: feeder, liquid storage bottle, tracheae and pressure gauge；Wherein, liquid storage bottle has
Gas is pressed into liquid storage bottle by air inlet and air outlet, feeder, and the gas outlet of liquid storage bottle is connected to be detected by tracheae
The gas outlet of the air inlet of sealing structure, sealing structure to be detected connects pressure gauge.
According to air-tightness detection device provided by the utility model, it is preferable that feeder is Miniature diaphragm pump, and being used for will
Gas is filled in liquid storage bottle and guarantees pressure.
According to air-tightness detection device provided by the utility model, it is preferable that liquid storage bottle is sealing gas cylinder, and injection is suitable in bottle
Gas is pressed into liquid storage bottle by tracheae by the liquid (for example, 1/3 pure water) of amount, feeder, and tracheae is inserted into liquid level or less.
According to air-tightness detection device provided by the utility model, it is preferable that the end of tracheae used in the gas outlet of liquid storage bottle
Portion is placed in liquid level or more and keeps a distance, it is ensured that droplet will not be sucked by gas outlet.
The method of detection sealing gas circuit (sealing structure to be detected) air-tightness, comprising the following steps:
It is constantly filled with clean dry air into liquid storage bottle by Miniature diaphragm pump, and observes the outlet of insertion liquid level in bottle
Bubble overflows frequency, and the pressure of the observation liquid storage bottle of the pressure gauge by being connected to tested sealing structure gas circuit terminal and sealing structure
Power；
When liquid storage pressure in the bottle maximum, pressure gauge is being observed, and whether observation air inlet pipe has bubble to emerge；And pressure is
It is no stable without being decreased obviously, judge whether gas leakage；As gas pressure constantly increases in liquid storage bottle, make inside tested sealing structure
In high pressure conditions, if blowby gas path, the meeting of gas outlet is under liquid level with slow by fast-turn construction, until at the uniform velocity, rate overflow bubble,
It will not stop.
The beneficial effect that the utility model obtains includes at least: the present apparatus is not related to the biggish component of volume, whole device
Small volume；The present apparatus is easy to operate, is suitble to quickly detection；Can according to sealing structure to be measured to air-tightness requirement replacement
The different feeder of load capacity.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of the air-tightness detection device according to the utility model embodiment.
Fig. 2 shows illustrated according to gas flow under the detecting state of the air-tightness detection device of the utility model embodiment
Figure.
Fig. 3 shows gas pressure direction schematic diagram of the sealing structure to be detected without gas leakage situation.
In figure: 1- miniature diaphragm pump steam inlet；2- Miniature diaphragm pump gas outlet；3- Miniature diaphragm pump；4- liquid storage bottle air inlet
Mouthful；5- liquid storage bottle escape pipe；6- liquid storage bottle air accumulator；7- pure water；8- sealing structure gas circuit entrance；9- sealing structure 10- is close
The outlet of seal structure gas circuit；11- pressure gauge；101,102,103 and 104 be tracheae.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.
As shown, the utility model discloses a kind of air-tightness detection devices, comprising: miniature diaphragm pump steam inlet 1；It is micro-
Type diaphragm pump gas outlet 2；Miniature diaphragm pump 3；Liquid storage bottle air inlet 4；Liquid storage bottle escape pipe 5；Liquid storage bottle air accumulator 6；Pure water
7；Sealing structure gas circuit entrance 8；Sealing structure 9；Sealing structure gas circuit outlet 10；Pressure gauge 11；Tracheae 101,102,103,
104。
Wherein miniature diaphragm pump steam inlet is connected to by tracheae 101 with outside air, and Miniature diaphragm pump gas outlet 2 passes through gas
Pipe 102 is connect with liquid storage bottle 6, and liquid storage bottle 6 is connect by tracheae 103 with tested sealing structure 9, and tested sealing structure 9 passes through gas
Pipe 104 is connect with pressure gauge 11；
The usage mode of the device are as follows: open Miniature diaphragm pump 3, diaphragm pump, which is continued working, presses gas by tracheae 102
Enter liquid storage bottle 6, gas reaches sealing structure 9 by tracheae 103 from liquid storage bottle gas outlet 5 by the water surface, and sealing structure 9 passes through gas
Pipe 104 connects pressure gauge 11, observes pressure gauge 11, when pressure reaches 0.5MPa whether it is stable do not decline, while observing liquid storage
Whether the air inlet pipe in pure water 7 in bottle air accumulator 6 has bubble to emerge, if in 11 pressure of pressure gauge stabilization and pure water 7
Air inlet pipe bubble-free emerge, then illustrate gas circuit without gas leakage, determine that 9 leakproofness of sealing structure is good, detection is qualified.
Air-tightness detection device disclosed by the utility model is not related to the biggish component of volume, whole device small volume；
It is easy to operate, it is suitble to quickly detection；Can according to sealing structure to be measured to air-tightness requirement replacement load capacity it is different
Feeder.
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 (4)
1. a kind of air-tightness detection device characterized by comprising feeder, liquid storage bottle, tracheae and pressure gauge；Wherein, institute
Liquid storage bottle is stated with air inlet and air outlet, gas is pressed into the liquid storage bottle by the feeder, and the liquid storage bottle goes out
Port connects the air inlet of sealing structure to be detected by tracheae, described in the gas outlet connection of the sealing structure to be detected
Pressure gauge.
2. air-tightness detection device according to claim 1, which is characterized in that the feeder is Miniature diaphragm pump,
For will fill gas in the liquid storage bottle and guarantee pressure.
3. air-tightness detection device according to claim 1, which is characterized in that the liquid storage bottle is to seal gas cylinder, in bottle
Suitable liquid is injected, gas is pressed into the liquid storage bottle by tracheae by the feeder, and tracheae is inserted into liquid level or less.
4. air-tightness detection device according to claim 3, which is characterized in that tracheae used in the gas outlet of the liquid storage bottle
End be placed in liquid level or more, it is ensured that droplet will not be sucked by gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822226479.7U CN209247259U (en) | 2018-12-27 | 2018-12-27 | Air-tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822226479.7U CN209247259U (en) | 2018-12-27 | 2018-12-27 | Air-tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209247259U true CN209247259U (en) | 2019-08-13 |
Family
ID=67535356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822226479.7U Active CN209247259U (en) | 2018-12-27 | 2018-12-27 | Air-tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209247259U (en) |
-
2018
- 2018-12-27 CN CN201822226479.7U patent/CN209247259U/en active Active
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