CN202033160U - Air-tightness tester - Google Patents
Air-tightness tester Download PDFInfo
- Publication number
- CN202033160U CN202033160U CN201120096286XU CN201120096286U CN202033160U CN 202033160 U CN202033160 U CN 202033160U CN 201120096286X U CN201120096286X U CN 201120096286XU CN 201120096286 U CN201120096286 U CN 201120096286U CN 202033160 U CN202033160 U CN 202033160U
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Abstract
The utility model relates to product testing equipment, in particular to an air-tightness tester, which comprises a pressurizing air inlet pipe and a connecting pipe for products to be tested. An electromagnetic valve and a pressure sensor are connected between the pressurizing air inlet pipe and the connecting pipe for products to be tested, the electromagnetic valve is connected with a time control module, a pressure control module is connected to a connecting pipeline of the pressurizing air inlet pipe and the connecting pipe for products to be tested and comprises a microcomputer chip which is connected with the time control module and a controller, and the controller is connected with a qualification determination indicating device. The whole measuring process of the air-tightness tester is precise without artificial observation and soaking the products in water, and pressure value and testing time can be quantified precisely.
Description
Technical field
The utility model relates to a kind of product test equipment, especially a kind of air tightness test instrument.
Background technology
In the production testing link of some products, it is an indispensable important step that impermeability detects, products such as fuel tank, car light and some instrument boxs for example, traditional performing leak test is the pressurized air in the inner filling certain pressure intensity of measured workpiece, then measured workpiece is immersed in the water, whether manual observation has bubble to come up.Drawback have following some:
1. manual observation error is big: because manual observation is subjected to the influence of light, observation angle, observer's eyesight and observer's mood, have very mistake or erroneous judgement;
2. subsequent treatment complexity: need to dewater and dried after the measured workpiece immersion detects, if leak seriously, also can damage, belong to destructive and detect, the strictness that therefore is subjected to some industries is repelled;
3. can't formulate science and strict testing standard: can only qualitative detection, can't detection by quantitative.
Summary of the invention
The purpose of this utility model provides the air tightness test instrument that a kind of error is little, need not subsequent treatment and energy detection by quantitative.
To achieve these goals, the utility model adopts following technical scheme:
It comprises a pressurization draft tube, product connecting pipe to be checked, be provided with solenoid valve and pressure transducer between described pressurization draft tube and the product connecting pipe to be checked, described solenoid valve connects a time control module, described pressure transducer connects a pressure control module, described pressure control module comprises a microcomputer chip and the pressure setup unit that is connected with microcomputer chip, and described time control module is connected with microcomputer chip; Described microcomputer chip connects a controller, and described controller connects the qualification determination indicating device.
Preferably, described time control module comprises the time setting unit and the time relay that is connected with time setting unit, and described time setting unit connects microcomputer chip.
Preferably, described time setting unit connects a time display unit.
Preferably, described pressure setup unit connects a pressure display unit.
Preferably, described pressurization draft tube is provided with one and filters pressure regulator valve.
When air tightness test instrument of the present utility model uses product to be checked is connected on the product connecting pipe to be checked, by the time control module control test duration, by pressure control module controls set pressure, opening solenoid valve pressurizes to product to be checked by the pressurization draft tube, stop pressurization after reaching the force value of setting, keep-up pressure according to the time of setting then, if the time internal pressure differences of setting meets the requirements then represents that product is qualified, if pressure differential is greater than required value then show that product is defective, whether qualified information is pointed out by the qualification determination indicating device.Whole process measurement of the present utility model is accurate, need not artificially to observe and product is ducked in drink, and can carry out accurate quantification to the force value time.
Description of drawings
Fig. 1 is the utility model modular structure synoptic diagram;
Fig. 2 is the utility model product inner structure synoptic diagram.
The utility model purpose, function and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
In conjunction with illustrated in figures 1 and 2, the air tightness test instrument of present embodiment comprises a pressurization draft tube 1, product connecting pipe 2 to be checked, be provided with solenoid valve 3 and pressure transducer 5 between described pressurization draft tube 1 and the product connecting pipe 2 to be checked, described solenoid valve 3 connects a time control module 4, described pressure transducer 5 connects a pressure control module 6, and described pressure control module 6 comprises a microcomputer chip 61 and the pressure setup unit 62 that is connected with microcomputer chip 61; Described microcomputer chip 61 connects a controller 7, and described controller connects qualification determination indicating device 8, and described microcomputer chip 61 calculates, compares, analyzes " setup pressure value and measured pressure value " and judges whether test product is qualified.
Concrete, described time control module 4 comprises the time set module 41 and the time relay 42 that is connected with time set module 41, the time relay 42 connects and control electromagnetic valve 3, described time setting unit 41 connects a time display unit 43, and described time setting unit 41 is connected with microcomputer chip 61.
Described pressure setup unit 62 connects a pressure display unit 63.
Because it is bigger from the gas-holder internal gas pressure, for fear of the withstand voltage limit that surpasses product to be checked, cause damage, the pressurization draft tube described in the present embodiment is provided with one and filters pressure regulator valve 9, is used to adjust before bleed pressure detects the input air pressure value in the pressurization draft tube is got final product slightly greater than detected pressures.As detected pressures is 30.0KPa, is adjusted into about 31.0KPa to get final product.
Sensing chamber at first sets the qualified differential pressure value of detected pressures value, dwell time and judgement of measured piece, and these numerical value are to determine according to the volume of measured piece itself and technical standard;
Instrument startup rear electromagnetic valve is opened and is made automatic pressurization, arranges locking on the digital indicator and show this force value when pressure reaches the testing setup value, and pressurization passageway is closed automatically, and the detection pilot lamp is bright, the time relay picks up counting;
Digital indicator row's numeral down shows the container inner pressure value in real time, and after one period dwell time, integrated chip judges automatically whether pressure difference value exceeds qualified differential pressure value;
Qualified lamp is bright, and the expression pressure differential is in judging qualified differential pressure value scope, and test product meets airtight requirement, and product is judged as qualified;
Defective lamp is bright, and the expression pressure differential is greater than judging qualified differential pressure value, and test product leaks and exceeds standard, and product is judged as defective, and the time that this moment, the time relay stopped is exactly to leak the time that exceeds standard.
Automatically remove previous result of determination when detecting next time.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. air tightness test instrument, it is characterized in that: comprise a pressurization draft tube, product connecting pipe to be checked, be provided with solenoid valve and pressure transducer between described pressurization draft tube and the product connecting pipe to be checked, described solenoid valve connects a time control module, described pressure transducer connects a pressure control module, described pressure control module comprises a microcomputer chip and the pressure setup unit that is connected with microcomputer chip, and described time control module is connected with microcomputer chip; Described microcomputer chip connects a controller, and described controller connects the qualification determination indicating device.
2. air tightness test instrument as claimed in claim 1 is characterized in that: described time control module comprises the time setting unit and the time relay that is connected with time setting unit, and described time setting unit connects microcomputer chip.
3. air tightness test instrument as claimed in claim 2 is characterized in that: described time setting unit connects a time display unit.
4. air tightness test instrument as claimed in claim 3 is characterized in that: described pressure setup unit connects a pressure display unit.
5. air tightness test instrument as claimed in claim 4 is characterized in that: described pressurization draft tube is provided with one and filters pressure regulator valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120096286XU CN202033160U (en) | 2011-04-02 | 2011-04-02 | Air-tightness tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120096286XU CN202033160U (en) | 2011-04-02 | 2011-04-02 | Air-tightness tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033160U true CN202033160U (en) | 2011-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120096286XU Expired - Fee Related CN202033160U (en) | 2011-04-02 | 2011-04-02 | Air-tightness tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033160U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494854A (en) * | 2011-11-24 | 2012-06-13 | 温岭德光自动化设备有限公司 | Leakage and plugging detection apparatus of infusion set |
| CN102928183A (en) * | 2012-11-27 | 2013-02-13 | 长春工业大学 | High-low-pressure sealed one-step detecting method and detecting device of liquefied petroleum gas cylinder valve |
| CN104215408A (en) * | 2013-05-30 | 2014-12-17 | 宁波富华阀门有限公司 | Valve air tightness detection system |
| CN104330232A (en) * | 2014-09-22 | 2015-02-04 | 昆山迈致治具科技有限公司 | Airtightness test fixture |
| CN104359637A (en) * | 2014-12-09 | 2015-02-18 | 中国包装科研测试中心 | Airtight and hydraulic comprehensive detector of packaging container |
| CN107084820A (en) * | 2017-03-27 | 2017-08-22 | 广州华凌制冷设备有限公司 | Luminous zone method for conducting leak test and air conditioner |
| CN108663169A (en) * | 2017-03-28 | 2018-10-16 | 长城汽车股份有限公司 | Airtight detecting apparatus and method |
| CN109186721A (en) * | 2018-09-08 | 2019-01-11 | 芜湖乐佳电器有限公司 | A kind of water level sensor leak detection method |
| CN109556798A (en) * | 2018-11-27 | 2019-04-02 | 安克创新科技股份有限公司 | Detection method, device, system and the storage medium of electronic product leakproofness |
| CN110132505A (en) * | 2019-06-27 | 2019-08-16 | 毛娟 | A kind of photovoltaic connector microcrack zone equipment and its detection method |
| CN113418653A (en) * | 2021-06-07 | 2021-09-21 | 上海沃证机电技术服务有限公司 | Digital display pressure test detector |
-
2011
- 2011-04-02 CN CN201120096286XU patent/CN202033160U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494854A (en) * | 2011-11-24 | 2012-06-13 | 温岭德光自动化设备有限公司 | Leakage and plugging detection apparatus of infusion set |
| CN102928183A (en) * | 2012-11-27 | 2013-02-13 | 长春工业大学 | High-low-pressure sealed one-step detecting method and detecting device of liquefied petroleum gas cylinder valve |
| CN102928183B (en) * | 2012-11-27 | 2015-12-23 | 长春工业大学 | Liquefied petroleum gas cylinder valve high-low pressure seals step detection method and a pick-up unit |
| CN104215408A (en) * | 2013-05-30 | 2014-12-17 | 宁波富华阀门有限公司 | Valve air tightness detection system |
| CN104330232A (en) * | 2014-09-22 | 2015-02-04 | 昆山迈致治具科技有限公司 | Airtightness test fixture |
| CN104359637A (en) * | 2014-12-09 | 2015-02-18 | 中国包装科研测试中心 | Airtight and hydraulic comprehensive detector of packaging container |
| CN107084820A (en) * | 2017-03-27 | 2017-08-22 | 广州华凌制冷设备有限公司 | Luminous zone method for conducting leak test and air conditioner |
| CN107084820B (en) * | 2017-03-27 | 2019-10-25 | 广州华凌制冷设备有限公司 | Luminous zone method for conducting leak test and air conditioner |
| CN108663169A (en) * | 2017-03-28 | 2018-10-16 | 长城汽车股份有限公司 | Airtight detecting apparatus and method |
| CN109186721A (en) * | 2018-09-08 | 2019-01-11 | 芜湖乐佳电器有限公司 | A kind of water level sensor leak detection method |
| CN109556798A (en) * | 2018-11-27 | 2019-04-02 | 安克创新科技股份有限公司 | Detection method, device, system and the storage medium of electronic product leakproofness |
| CN110132505A (en) * | 2019-06-27 | 2019-08-16 | 毛娟 | A kind of photovoltaic connector microcrack zone equipment and its detection method |
| CN113418653A (en) * | 2021-06-07 | 2021-09-21 | 上海沃证机电技术服务有限公司 | Digital display pressure test detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |