CN209311026U - A kind of test device for air tightness - Google Patents
A kind of test device for air tightness Download PDFInfo
- Publication number
- CN209311026U CN209311026U CN201920188300.5U CN201920188300U CN209311026U CN 209311026 U CN209311026 U CN 209311026U CN 201920188300 U CN201920188300 U CN 201920188300U CN 209311026 U CN209311026 U CN 209311026U
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- needle
- valve
- pressure sensor
- jet pump
- test device
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Abstract
The utility model discloses a kind of test device for air tightness, belong to test device field, including jet pump, pressure sensor, intellect digital display and compressed air inlet pipe, the compressed air inlet pipe and the connection of first needle-valve one end, the first needle-valve other end is connected with a port of jet pump, it is connected while first needle-valve one end with one end of the second needle-valve, the second needle-valve other end is connected with pressure sensor, pressure sensor is connected with intellect digital display, another port of jet pump is connected with third needle-valve one end, the third needle-valve other end connects the 4th needle-valve one end, the 4th needle-valve other end is connected with measured device connector, the third needle-valve other end and the connection of the second needle-valve other end, the second needle-valve other end is connected with the 4th needle-valve one end simultaneously.The utility model is integrated with detection of negative pressure and positive pressure test, it may be convenient to and air-tightness and Gas leak position are detected, reprocesses maintenance convenient for product, structure is simple, and it is low in cost, it is easy to use.
Description
Technical field
The utility model relates to a kind of test device, specifically a kind of test device for air tightness.
Background technique
Air tight test need to use air-leakage detector, it is the dress for being specifically applied to detect being sealed property of pipeline product
It sets.Being mainly used for on-line checking instrument has in the production test of seal request sample gas extraction etc. to pipeline.Air-leakage detector
Using the intelligentized design of embedded Control, it can be automatically performed test program, and automatic discrimination is carried out to inspection result.Existing gas
Close property tooling, which is generally inflated, generates positive pressure by pressure sensor acquisition pressure data or by air extractor generation negative pressure, leads to
Over-voltage force snesor obtains negative pressure data, then observes data situation, judges that air-tightness, both the above mode can be real
Existing testing result, but be directed to substandard product, there is that gas leak phenomenon only passes through positive pressure or negative pressure is difficult to judge specific Gas leak position,
The device of above-mentioned acquisition positive pressure or negative pressure is generally air pump simultaneously, higher cost, and structure is complex.
Summary of the invention
For existing problem, the purpose of this utility model is to provide a kind of test device for air tightness, above-mentioned to solve
The problem of being proposed in background technique.
To achieve the above object, the utility model provides the following technical solutions:
A kind of test device for air tightness, including jet pump, pressure sensor, intellect digital display and compressed air inlet pipe,
The compressed air inlet pipe and the connection of first needle-valve one end, the first needle-valve other end are connected with a port of jet pump, the
It is connected while one needle-valve one end with one end of the second needle-valve, the second needle-valve other end is connected with pressure sensor, pressure sensing
Device is connected with intellect digital display, another port of jet pump is connected with third needle-valve one end, third needle-valve other end connection the 4th
Needle-valve one end, the 4th needle-valve other end are connected with measured device connector, and the third needle-valve other end and the second needle-valve other end connect
It connects, the second needle-valve other end is connected with the 4th needle-valve one end simultaneously.
As a further solution of the present invention: the pressure sensor is equipped with waterproof membrane.
As a further solution of the present invention: the intellect digital display is equipped with water-tight device.
Compared with prior art, the utility model has the beneficial effects that the utility model develops the stream based on jet pump
Body high speed passes through the gas path device for generating the working principle acquisition negative pressure of pressure drop, while being integrated with positive pressure pipeline, is surveyed by negative pressure
Examination through pressure transmitter obtains pressure data, can be changed according to pressure data and judge air-tightness as a result, if air-tightness is bad, then
It by positive pressure, is immersed in the water, can determine Gas leak position, reprocess maintenance convenient for product.Detection device is based on jet stream pump work
Principle generates subnormal ambient, and structure is simple, low in cost, is easy to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of test device for air tightness.
In figure: 1, jet pump, the 2, first needle-valve, the 3, second needle-valve, 4, pressure sensor, 5, intellect digital display, 6, third
Needle-valve, 7, measured device connector, the 8, the 4th needle-valve, 9, compressed air inlet pipe.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, 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 embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one: referring to Fig. 1, a kind of test device for air tightness, including jet pump 1, pressure sensor 4, intelligent number
Aobvious table 5 and compressed air inlet pipe 9, the compressed air inlet pipe 9 are connected with 2 one end of the first needle-valve, 2 other end of the first needle-valve
It is connected with a port of jet pump 1, first 2 one end of needle-valve while connects with one end of the second needle-valve 3, and the second needle-valve 3 is another
One end and pressure sensor 4 connect, and pressure sensor 4 and intellect digital display 5 connect, convenient by showing pressure sensor 4
The numerical value measured.
Another port of jet pump 1 is connected with 6 one end of third needle-valve, and 6 other end of third needle-valve connects the 4th needle-valve 8 one
End, 8 other end of the 4th needle-valve and measured device connector 7 connect, and measured device and measured device connector 7 link together,
Facilitate detection.6 other end of third needle-valve and the connection of 3 other end of the second needle-valve, 3 other end of the second needle-valve while and the 4th needle-valve 8
One end connection, the utility model develop the fluid high-speed based on jet pump and obtain negative pressure by generating the working principle of pressure drop
Gas path device, while it being integrated with positive pressure pipeline, it is tested by negative pressure and obtains pressure data through pressure transmitter, it can be according to pressure
Data variation judges air-tightness as a result, if air-tightness is bad, then by positive pressure, is immersed in the water, can determine Gas leak position.
Embodiment two: pressure sensor 4 and intellect digital display 5 are equipped with water-tight device on the basis of example 1, keep away
Exempting from steam etc. influences its use.
It should be strongly noted that the connection group of upper jet pump, pressure sensor and intellect digital display is combined into the application
The innovative point of the application efficiently solves existing test device for air tightness higher cost, the complex problem of structure.
In conclusion the preferable case study on implementation of only the utility model, above makees the better embodiment of this patent
It is described in detail, but this patent is not limited to the above embodiment, and the non-limiting protection scope of the utility model, in ability
The those of ordinary skill in domain within the scope of knowledge, can also make various changes under the premise of not departing from this patent objective
Change.It is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (3)
1. a kind of test device for air tightness, including jet pump (1), pressure sensor (4), intellect digital display (5) and compressed air
Air inlet pipe (9), which is characterized in that the compressed air inlet pipe (9) connects with the first needle-valve (2) one end, and the first needle-valve (2) is another
One end is connected with a port of jet pump (1), and the first needle-valve (2) one end while connects with one end of the second needle-valve (3), and
Two needle-valves (3) other end and pressure sensor (4) connection, pressure sensor (4) and intellect digital display (5) connection, jet pump (1)
Another port is connected with third needle-valve (6) one end, and third needle-valve (6) other end connects the 4th needle-valve (8) one end, the 4th needle-valve
(8) other end and measured device connector (7) connection, third needle-valve (6) other end and the connection of the second needle-valve (3) other end, the
Two needle-valves (3) other end is connected with the 4th needle-valve (8) one end simultaneously.
2. test device for air tightness according to claim 1, which is characterized in that the pressure sensor (4) is equipped with anti-
Moisture film.
3. test device for air tightness according to claim 2, which is characterized in that the intellect digital display (5) is equipped with anti-
Water installations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920188300.5U CN209311026U (en) | 2019-02-03 | 2019-02-03 | A kind of test device for air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920188300.5U CN209311026U (en) | 2019-02-03 | 2019-02-03 | A kind of test device for air tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209311026U true CN209311026U (en) | 2019-08-27 |
Family
ID=67681588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920188300.5U Active CN209311026U (en) | 2019-02-03 | 2019-02-03 | A kind of test device for air tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209311026U (en) |
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2019
- 2019-02-03 CN CN201920188300.5U patent/CN209311026U/en active Active
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