CN200982911Y - Vacuum sealing detection device - Google Patents
Vacuum sealing detection device Download PDFInfo
- Publication number
- CN200982911Y CN200982911Y CN 200620015046 CN200620015046U CN200982911Y CN 200982911 Y CN200982911 Y CN 200982911Y CN 200620015046 CN200620015046 CN 200620015046 CN 200620015046 U CN200620015046 U CN 200620015046U CN 200982911 Y CN200982911 Y CN 200982911Y
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- China
- Prior art keywords
- vacuum
- source container
- stop valve
- vacuum source
- pressure
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- Expired - Lifetime
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Abstract
The utility model discloses a vacuum seal detecting device, which substantially comprises a vacuum pump, a first shut-off valve and a second shut-off valve, a vacuum pressure gauge and a vacuum source container, wherein one end of the vacuum source container has a seal communication with the vacuum pump through the first shut-off valve and the other end is used to have a seal communication with a detected component, the vacuum pressure gauge has a seal communication with the vacuum source container, and especially the second shut-off valve only has a seal communication with the vacuum source container. The vacuum seal detecting device has simple conformation and convenient detection.
Description
Technical field
The utility model is about a kind of vacuum leakproofness pick-up unit, refers in particular to a kind of vacuum leakproofness pick-up unit simple in structure, easy to detect.
Background technology
At present, manufacturer's standard according to automobile industry, the vacuum leakproofness of the caliper on the automobile detects and all adopts structure shown in Figure 1, mainly comprise a vacuum pump 4 ', first stop valve 1 ', second stop valve 2 ', a pressure vacuum gauge 3 ', vacuum source container 6 ' and pipeline fittings, pass through second stop valve, 2 ' UNICOM between its intermediate pump 4 ' and the vacuum source container 6 ', caliper 5 ', vacuum source container 6 ', pressure vacuum gauge 3 ' is by three-way connection a 7 ' UNICOM, and wherein first stop valve 1 ' is arranged on vacuum pressure table 3 ' and this three-way connection 7 ' between.But this detection architecture has defective, in the time of promptly can't guaranteeing all to be extracted into the pressure limit of regulation exactly when vacuum pump 4 ' exhaust, lacks regulating measure at every turn; Low-pressure gas in the against vacuum source container 6 ' can only discharge by caliper 5 ', and other release that does not have to discharge exports, and testing process is very inconvenient.
The utility model content
At foregoing, the purpose of this utility model promptly is to provide a kind of vacuum leakproofness pick-up unit simple in structure, easy to detect.
The purpose of this utility model is achieved through the following technical solutions:
The utility model provides a kind of vacuum leakproofness pick-up unit, mainly comprise vacuum pump, first stop valve, second stop valve, pressure vacuum gauge, vacuum source container, wherein form sealing UNICOM by first stop valve between vacuum source container one end and the vacuum pump, the other end is used for forming sealing UNICOM with detected components and parts, pressure vacuum gauge and vacuum source container form sealing UNICOM, it is characterized in that: second stop valve only forms sealing UNICOM with the vacuum source container.
On the said structure basis, wherein:
Be formed with four joints that connect with its inner chamber on the described vacuum source container, described tested components and parts, first stop valve, second stop valve and pressure vacuum gauge all correspondingly are connected with these four joints respectively by hydraulic quick coupler, and then form sealing UNICOM with this vacuum source container.
The utility model is compared to prior art, its advantage is, second stop valve of the utility model vacuum leakproofness pick-up unit only forms sealing UNICOM with the vacuum source container, therefore can communicate with atmosphere by second stop valve, and then by regulate first stop valve can pilot piping in the size of gas flow, can play regulating action to the absolute pressure of pipeline by regulating second stop valve, can carry out the experiment with measuring of vacuum leakproofness in view of the above easily to tested components and parts.Obviously, the utility model can satisfy the vacuum leakproofness testing requirements of a lot of elements that comprise caliper; And this is simple in structure, and small investment is because full employing artificial visually examine can extensively promote.
In addition, the vacuum source container is equivalent to a four-way connection in pipeline, can the vacuum source container be the center therefore, as carrying terminal, can easily each parts be coupled together by pipeline, thereby realize the impermeability measuring ability.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the structural principle synoptic diagram of vacuum leakproofness pick-up unit in the prior art.
Fig. 2 is the structural principle synoptic diagram of the utility model vacuum leakproofness pick-up unit.
Fig. 3 is the perspective view of the vacuum source container in the utility model vacuum leakproofness pick-up unit.
Fig. 4 is the cross-sectional view of the vacuum source container in the utility model vacuum leakproofness pick-up unit.
Embodiment
Please together referring to figs. 2 to Fig. 4, the utility model vacuum leakproofness pick-up unit, mainly comprise vacuum pump 4, first stop valve 1, second stop valve 2, pressure vacuum gauge 3, vacuum source container 6, wherein be formed with four joints 61 on the vacuum source container 6, tested components and parts 5, first stop valve 1, second stop valve 2 and pressure vacuum gauge 3 all correspondingly are connected with these four joints 61 respectively by hydraulic quick coupler, and then form sealing UNICOMs with this vacuum source container 6, and 2 of second stop valves form sealing UNICOMs with vacuum source container 6, between vacuum source container 6 and the vacuum pump 4 are to form by first stop valve 1 to seal UNICOM.
The utility model use principle, promptly by first stop valve 1, gas flow in the pilot piping and protection pressure vacuum gauge 3; Measure the absolute pressure of pipeline then by pressure vacuum gauge 3; Because 2 of second stop valves form sealing UNICOMs with vacuum source container 6, the therefore air pressure that can regulate in the pipelines by second stop valve 2 can carry out the experiment with measuring of vacuum leakproofness in view of the above easily to tested components and parts 5.
Process with the vacuum leakproofness that detects auto parts machinery braking pincers is an example below, to specify the use of the utility model vacuum leakproofness pick-up unit:
Must clean out the impurity in the pipeline before the test, caliper is placed on the worktable, after being tightly connected, start vacuum pump 4 exhausts, open first stop valve 1 simultaneously and connect pipeline, close second stop valve 2, when showing after absolute pressure is 250 ± 50Pa (required force value), pressure vacuum gauge 3 promptly closes first stop valve 1, cut off pipeline, low-pressure gas is locked in the caliper, measure simultaneously the pressure lift-off value of low-pressure gas in the 20S immediately, its pressure lift-off value is not more than 200Pa (setting), (volume of vacuum source container+vacuum source volume of a container is at a distance of volume=150 ± 10ml) of the pipeline that is connected between the caliper to want cube V, owing to there are differences on the volume of the different tested components and parts 5 of test, can suitably utilize the vacuum source volume of a container to control, to satisfy the requirement of volume V at a distance of the length of the pipeline that is connected between the caliper.In test, when startup vacuum pump 4 is bled, can be by regulating first stop valve 1 with the pilot-gas flow; If absolute pressure does not reach 250 ± 50Pa, then vacuum pump 4 is continued to open exhaust; If when absolute pressure exceeds testing requirements, can open second stop valve 2 and put into certain air, force value is met the requirements.
In addition, consider the connecting thread hole on the caliper, can consider to select for use different flexible pipe of caliber and supporting pipe adapter that vacuum source container 6 is connected with caliper.
Claims (2)
1. vacuum leakproofness pick-up unit, mainly comprise vacuum pump, first stop valve, second stop valve, pressure vacuum gauge, the vacuum source container wherein forms sealing UNICOM by first stop valve between vacuum source container one end and the vacuum pump, and the other end is used for forming sealing UNICOM with detected components and parts, pressure vacuum gauge and vacuum source container form sealing UNICOM, it is characterized in that: second stop valve only forms sealing UNICOM with the vacuum source container.
2. vacuum leakproofness pick-up unit as claimed in claim 1, wherein: be formed with four joints that connect with its inner chamber on the described vacuum source container, described tested components and parts, first stop valve, second stop valve and pressure vacuum gauge all correspondingly are connected with these four joints respectively by hydraulic quick coupler, and then form sealing UNICOM with this vacuum source container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620015046 CN200982911Y (en) | 2006-09-28 | 2006-09-28 | Vacuum sealing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620015046 CN200982911Y (en) | 2006-09-28 | 2006-09-28 | Vacuum sealing detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982911Y true CN200982911Y (en) | 2007-11-28 |
Family
ID=38910068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620015046 Expired - Lifetime CN200982911Y (en) | 2006-09-28 | 2006-09-28 | Vacuum sealing detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982911Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871835A (en) * | 2009-04-24 | 2010-10-27 | 上海汽车制动系统有限公司 | On-line high-pressure tightness testing method for brake caliper |
| CN101718611B (en) * | 2009-11-19 | 2013-02-27 | 浙江吉利汽车研究院有限公司 | Engine part and whole airtightness detection device |
| CN103134549A (en) * | 2013-02-20 | 2013-06-05 | 浙江花园电子器材有限公司 | Multi-corrugation corrugated pipe gas detector |
| CN104481856A (en) * | 2014-10-11 | 2015-04-01 | 浙江万安科技股份有限公司 | Vacuum pump detection device and detection method of sealing performance, reliability and vacuum degree |
| CN104568342A (en) * | 2014-12-31 | 2015-04-29 | 贝兹维仪器(苏州)有限公司 | Sealing performance detecting device for LWD |
| CN104792480A (en) * | 2015-05-11 | 2015-07-22 | 江西省和众汽车液压泵业有限公司 | Automobile caliper comprehensive sealing performance detecting device |
| CN108627331A (en) * | 2018-07-20 | 2018-10-09 | 山东珠琳智造股份有限公司 | A kind of portable detection equipment for pipe gas self-closing valve |
| CN111811757A (en) * | 2020-07-22 | 2020-10-23 | 海信（山东）冰箱有限公司 | Method and structure for inspecting vacuum pipeline system for refrigerator |
-
2006
- 2006-09-28 CN CN 200620015046 patent/CN200982911Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871835A (en) * | 2009-04-24 | 2010-10-27 | 上海汽车制动系统有限公司 | On-line high-pressure tightness testing method for brake caliper |
| CN101871835B (en) * | 2009-04-24 | 2013-07-17 | 上海汽车制动系统有限公司 | On-line high-pressure tightness testing method for brake caliper |
| CN101718611B (en) * | 2009-11-19 | 2013-02-27 | 浙江吉利汽车研究院有限公司 | Engine part and whole airtightness detection device |
| CN103134549A (en) * | 2013-02-20 | 2013-06-05 | 浙江花园电子器材有限公司 | Multi-corrugation corrugated pipe gas detector |
| CN104481856A (en) * | 2014-10-11 | 2015-04-01 | 浙江万安科技股份有限公司 | Vacuum pump detection device and detection method of sealing performance, reliability and vacuum degree |
| CN104568342A (en) * | 2014-12-31 | 2015-04-29 | 贝兹维仪器(苏州)有限公司 | Sealing performance detecting device for LWD |
| CN104792480A (en) * | 2015-05-11 | 2015-07-22 | 江西省和众汽车液压泵业有限公司 | Automobile caliper comprehensive sealing performance detecting device |
| CN108627331A (en) * | 2018-07-20 | 2018-10-09 | 山东珠琳智造股份有限公司 | A kind of portable detection equipment for pipe gas self-closing valve |
| CN111811757A (en) * | 2020-07-22 | 2020-10-23 | 海信（山东）冰箱有限公司 | Method and structure for inspecting vacuum pipeline system for refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071128 |
|
| EXPY | Termination of patent right or utility model |