CN220625670U - Air tightness detection device - Google Patents
Air tightness detection device Download PDFInfo
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- CN220625670U CN220625670U CN202322344883.5U CN202322344883U CN220625670U CN 220625670 U CN220625670 U CN 220625670U CN 202322344883 U CN202322344883 U CN 202322344883U CN 220625670 U CN220625670 U CN 220625670U
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- pipeline
- air
- air tightness
- pressure gauge
- detection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000009423 ventilation Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the field of detection devices, in particular to an air tightness detection device, which comprises: the first pipeline is provided with a first pressure gauge, a second flow valve and a second pressure gauge in sequence from left to right; the left end of the first pipeline is used for receiving compressed gas, and the right end of the first pipeline is used for inflating an object to be detected to detect air tightness. The utility model provides an air tightness detection device which can measure the air tightness of an object to be detected on the premise of protecting the object to be detected.
Description
Technical Field
The utility model relates to the field of detection devices, in particular to an air tightness detection device.
Background
Air tightness refers to the fact that whether or not a leakage point exists on the surface of an object does not enable gas or liquid in the object to move from the inside of the object to the outside of the object.
Some existing air tightness detection devices adopt vacuum suction detection, and the vacuum suction detection is suitable for products with poor materials, such as plastic bottles and the like.
As in the prior art, chinese patent application No. 201620703268.6, an air tightness detecting device, comprising: sealing the detection box, and accommodating and fixing the product to be detected; a detection mechanism which is communicated with the inside of the product to be detected to detect the air tightness of the product; and the detection reinforcing mechanism is communicated with the inside of the sealed detection box and can reinforce the detection effect of the detection mechanism. In the air tightness detection device, the detection enhancement mechanism can enhance the detection effect of the detection mechanism, and the detection accuracy and the detection efficiency of the air tightness detection device are improved.
The device also uses vacuum to detect tightness. When the detection mode is used for a plastic bottle, for example, the plastic bottle is damaged to some extent and is not suitable for use. Therefore, the air tightness detection device is designed, and the air tightness of the to-be-detected object can be measured on the premise of protecting the to-be-detected air tightness object.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an air tightness detection device which can measure the air tightness of an object to be detected on the premise of protecting the object to be detected.
In order to solve the technical problems, the utility model adopts the following technical scheme: an air tightness detection device, comprising:
the first pipeline is provided with a first pressure gauge, a second flow valve and a second pressure gauge in sequence from left to right;
the left end of the first pipeline is used for receiving compressed gas, and the right end of the first pipeline is used for inflating an object to be detected to detect air tightness.
Further, a first air pipe quick connector is arranged at the left end of the first pipeline and used for being communicated with an air outlet valve of a workshop or a detection chamber, and the air pressure of the compressed air can be adjusted.
Further, a second air pipe quick connector is arranged at the right end of the first pipeline and used for connecting the object to be detected to be inflated for detecting air tightness.
Further, a first flow valve is arranged on the first pipeline and is positioned between the left end of the first pipeline and the first pressure gauge.
Further, an air filter and a third flow valve are arranged on the first pipeline from left to right, and the air filter and the third flow valve are positioned between the second flow valve and the second pressure gauge.
Further, a first three-way pipe and a second three-way pipe are arranged on the first pipeline, the first three-way pipe is located between the air filter and the third circulation valve, the second three-way pipe is located between the second pressure gauge and the second air pipe quick connector, a second pipeline is communicated between the other end of the first three-way pipe and the other end of the second three-way pipe, and a fourth circulation valve is arranged on the second pipeline.
Compared with the prior art, the utility model has the beneficial effects that: the method comprises the steps that a first pressure gauge and a first flow valve are preset, the pressure of compressed gas can be detected through the first pressure gauge, and the large-pressure compressed gas is prevented from crushing an airtight object to be detected;
whether the value of the second pressure gauge is changed or not can be set to judge whether the air tightness of the air tightness object to be tested is good or not.
Drawings
The disclosure of the present utility model is described with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:
fig. 1 schematically shows a schematic structure of a proposed device according to an embodiment of the utility model.
Reference numerals in the drawings: 1. the first air pipe quick connector; 2. a first flow-through valve; 3. a first pressure gauge; 4. a first pipeline; 5. a second flow-through valve; 6. an air filter; 7. a first tee; 8. a third flow-through valve; 9. a second pressure gauge; 10. a second tee; 11. a second air pipe quick connector; 12. a fourth flow-through valve; 13. and a second pipeline.
Detailed Description
It is to be understood that, according to the technical solution of the present utility model, those skilled in the art may propose various alternative structural modes and implementation modes without changing the true spirit of the present utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.
Examples:
as shown in fig. 1, a first gas pipe quick connector 1 is fixedly installed at the left end of a first pipeline 4, and the first gas pipe quick connector 1 is used for being connected with a gas outlet valve with adjustable compressed gas pressure of a workshop or a detection chamber. The right end of the first pipeline 4 is fixedly provided with a second air pipe quick connector 11, and the second air pipe quick connector 11 is used for inflating an object to be detected to detect air tightness.
The first pipeline 4 is provided with a first flow valve 2, a first pressure gauge 3, a second flow valve 5, an air filter 6, a first three-way pipe 7, a third flow valve 8, a second pressure gauge 9 and a second three-way pipe 10 in sequence from left to right. And the first flow valve 2, the first pressure gauge 3, the second flow valve 5, the air filter 6, the first three-way pipe 7, the third flow valve 8, the second pressure gauge 9 and the second three-way pipe 10 are positioned between the first air pipe quick connector 1 and the second air pipe quick connector 11.
A second pipeline 13 is communicated between the other end of the first three-way pipe 7 and the other end of the second three-way pipe 10, and a fourth circulating valve 12 is arranged in the middle of the second pipeline 13.
First compressed gas enters the first pipeline 4 from the first gas pipe quick connector 1 and is blocked by the normally closed first flow valve 2. Namely, after the connection between the first air pipe quick connector 1 and the external compressed air is primarily completed, the first flow valve 2 can prevent the compressed air from being directly discharged.
The first flow valve 2 is then opened so that the compressed gas passes the first pressure gauge 3, and the first pressure gauge 3 can detect the pressure value of the compressed gas at this time. The second valve 5 is now in a normally closed state. When the air tightness of the object to be detected is not detected, firstly, the pressure of the pipeline of the first pipeline 4, which is filled with the compressed gas at the moment, is observed through the indication of the first pressure gauge 3, and whether the indication of the pressure of the first pressure gauge 3 is too large or too small is observed, so that the detection of the air tightness of the future object is affected. The pressure indication of the first pressure gauge 3 is too large, so that the object may be damaged directly when the air tightness of the object is detected in the future. When the pressure indication of the first pressure gauge 3 is too small, the detection effect may not be good when the air tightness of the object is detected in the future.
When detecting large-scale products, the fourth flow valve 12 is opened first, and the third flow valve 8 is closed, so that the second pipeline 13 can rapidly transmit gas to the second gas pipe quick connector 11, and the interior of the large-scale products can be rapidly filled with gas. When the product is filled with gas, the fourth flow valve 12 is closed, the third flow valve 8 is opened, and whether the air tightness of the large-sized product is good is judged according to whether the pressure values of the second pressure gauge 9 and the first pressure gauge 3 change.
The first flow valve 2 is then adjusted such that the first pressure gauge 3 maintains a preset pressure value. And then the second air pipe quick connector 11 is inserted onto the object to be tested in a sealing manner. The compressed gas from the first line 4 then enters the air filter 6 for filtering the gas. The filtered gas enters the second pressure gauge 9 and the second gas pipe quick connector 11 through the opened third flow valve 8, and the second gas pipe quick connector 11 transmits the compressed gas to the object to be detected. The second pressure gauge 9 is now used to show the pressure of the first line 4 at this time. When the pressure values of the second pressure gauge 9 and the first pressure gauge 3 are the same, the first flow-through valve 2 is closed. After waiting for the preset time, observing whether the pressure values of the first pressure gauge 3 and the second pressure gauge 9 change, and if not, indicating that the air tightness of the object is good. If the pressure values of the first pressure gauge 3 and the second pressure gauge 9 become smaller, it is indicated that the air tightness of the object to be measured is not good.
The technical scope of the present utility model is not limited to the above description, and those skilled in the art may make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present utility model, and these changes and modifications should be included in the scope of the present utility model.
Claims (6)
1. An air tightness detection device, characterized by comprising:
the first pipeline (4), the first pipeline (4) is provided with a first pressure gauge (3), a second flow valve (5) and a second pressure gauge (9) in sequence from left to right;
the left end of the first pipeline (4) is used for receiving compressed gas, and the right end of the first pipeline (4) is used for inflating an object to be detected to detect air tightness.
2. The air tightness detection device according to claim 1, wherein the left end of the first pipeline (4) is provided with a first air pipe quick connector (1) for connecting an air outlet valve of a workshop or a detection chamber capable of adjusting the air pressure of compressed air.
3. An air tightness detection device according to claim 2, characterized in that the right end of the first pipeline (4) is provided with a second air pipe quick connector (11) for connecting with the object to be detected for air inflation to detect air tightness.
4. A gas tightness detection device according to claim 3, characterized in that the first pipeline (4) is provided with a first flow valve (2), said first flow valve (2) being located between the left end of the first pipeline (4) and the first pressure gauge (3).
5. An air tightness detection device according to claim 4, characterized in that the first pipeline (4) is provided with an air filter (6) and a third flow valve (8) from left to right, the air filter (6) and the third flow valve (8) being located between the second flow valve (5) and the second pressure gauge (9).
6. The air tightness detection device according to claim 5, wherein the first pipeline (4) is provided with a first three-way pipe (7) and a second three-way pipe (10), the first three-way pipe (7) is located between the air filter (6) and the third ventilation valve (8), the second three-way pipe (10) is located between the second pressure gauge (9) and the second air pipe quick connector (11), a second pipeline (13) is communicated between the other of the first three-way pipe (7) and the other of the second three-way pipe (10), and a fourth ventilation valve (12) is arranged on the second pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344883.5U CN220625670U (en) | 2023-08-30 | 2023-08-30 | Air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344883.5U CN220625670U (en) | 2023-08-30 | 2023-08-30 | Air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220625670U true CN220625670U (en) | 2024-03-19 |
Family
ID=90222961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322344883.5U Active CN220625670U (en) | 2023-08-30 | 2023-08-30 | Air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220625670U (en) |
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2023
- 2023-08-30 CN CN202322344883.5U patent/CN220625670U/en active Active
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