CN2872339Y - Air-tightness tester - Google Patents
Air-tightness tester Download PDFInfo
- Publication number
- CN2872339Y CN2872339Y CN 200620110007 CN200620110007U CN2872339Y CN 2872339 Y CN2872339 Y CN 2872339Y CN 200620110007 CN200620110007 CN 200620110007 CN 200620110007 U CN200620110007 U CN 200620110007U CN 2872339 Y CN2872339 Y CN 2872339Y
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- CN
- China
- Prior art keywords
- hollow tube
- gas pipeline
- electric control
- operation valve
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses an airtight testing device, which comprises a gas source and a gas pipeline, wherein said gas pipeline is provided with two control valves, and the gas pipeline is connected to a test part under the control of the first control valve and connected to a sealed chamber under the control of the first and second control valves. Inside the sealed chamber, a manometric fluid and a hollow tube are arranged in such a way that the manometric fluid flows inside the hollow tube upward or downward. The utility model avoids the process of immersing the test part in water, reducing water consumption and environmental pollution, and adopts sensor, electric control means and indicator light to replace visual inspection, thereby realizing high-precision and standardized measurement and ensuring product quality. Additionally, the utility model has advantages of simple structure and easy maintenance.
Description
Technical field
The utility model relates to a kind of pick-up unit, especially detects the air-tightness detection device of part sealing property, air-tightness.
Background technology
In the prior art, usually needing all that the part that has impermeability to require is carried out impermeability detects, with determine whether it leaks gas, leakage etc., and then determine whether it is qualified, make every effort to the undesirable parts of impermeability are detected in advance, avoid its installation or use on product and reduce quality, the overall performance of product or cause quality accident.In the flourishing Chongqing of engineering goods processing, as automobile, the motorcycle production base, the engine that enormous amount is arranged, cylinder body, cylinder head, cylinder cap, air inlet-outlet pipe, parts such as gear box casing need carry out impermeability and detect, to judge whether it leaks gas, leak etc., and detection method of the prior art, with cylinder head, cylinder cap is an example, usually all be its inner chamber to be stopped up with seal plug, immerse again in (in the water) in the liquid, observe it in the mode of artificial naked eyes and whether emit what of the bubble and the bubble of being emerged, thereby judge whether whether it is certified products, can be installed on the engine and use.The not enough main following points of this kind mode: 1, waste water resource, consume a large amount of water; 2, accuracy is not high, judges with operator's experience whether it is qualified entirely, needs the operator to make multi-angle sometimes and observes, and is easy to generate and fails to judge; So, usually unacceptable product is regarded as also that certified products use or with certified products regard as unacceptable product need not, thereby influence product quality; 3, the unified criterion of neither one, it is too big influenced by human factor; Even to same part, different operators' testing result is probably different; 4, contaminated environment, and operator's labour intensity is big, production efficiency is low.
Summary of the invention
The utility model provides a kind of very high air-tightness detection device of unified criterion, accuracy that has at the deficiency of impermeability detection mode in the prior art.
The technical solution of the utility model: a kind of air-tightness detection device, comprise source of the gas and gas pipeline, its improvements are: described gas pipeline is provided with two operation valves, and gas pipeline feeds tested part through first operation valve, in first, second operation valve feeds seal chamber; Be provided with pressure measurement liquid and hollow tube in the sealing cavity, the manometric liquid physical efficiency rises or descends along the cavity of hollow tube;
Further be characterized as: described first, second operation valve is a solenoid valve, is electrically connected with its electric control gear that opens or closes of control; The sensor that is electrically connected with electric control gear is set outside hollow tube, detects the liquid level of pressure measurement liquid in the hollow tube.
Pick-up unit of the present utility model no longer is immersed in detected part in the water, has both saved water resource, does not pollute the environment again; Replace artificial visual inspection with sensor, electric control gear, pilot lamp etc., accuracy is very high, has unified criterion, can guarantee product quality; This pick-up unit is simple in structure, is easy to safeguard.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing is the utility model pick-up unit structural representation.
Embodiment
In figure, 1-source of the gas, 2-gas pipeline, 3-operation valve, 4-operation valve, 5-tested part, 6-seal chamber, 7-pressure measurement liquid, 8-hollow tube, 9-sheath, 10-sensor, 11-electric control gear.
Pick-up unit of the present utility model comprises source of the gas 1 and the gas pipeline 2 that is attached thereto, and source of the gas 1 provides pressure gas in gas pipeline 2, and source of the gas 1 can be an air compressor of the prior art etc., and gas pipeline 2 is as the input channel of gas; Gas pipeline 2 is provided with operation valve 3,4, and gas pipeline 2 feeds in the tested part 5 through operation valve 3, and gas pipeline 2 feeds in the cavity of seal chamber 6 through operation valve 3,4; After operation valve 3 was opened, gas just charged into the cavity and the seal chamber 6 interior (operation valve 4 is normally open) of measured piece 5.Be provided with pressure measurement liquid 7 and hollow tube 8 in the seal chamber 6, pressure measurement liquid 7 is under pressure and does the time spent, can upwards rise along the cavity of hollow tube 8 or descend.Consider from economy, practicality, pressure measurement liquid 7 optional mercurys, hollow tube 8 can be selected the glass tube of hollow, is convenient to observe the height of 7 rises of pressure measurement liquid or its liquid level of back that descends.
Sheath 9 is set outside hollow tube 8, is convenient to install, fixing hollow tube 8.Below just can be used as an easy pick-up unit uses, during use, by manually opening or closing by-pass valve control 3,4, and control its dwell time (closing control valve 3, operation valve 4 is in open mode), the operator observes the height change of pressure measurement liquid 7 liquid level in hollow tube 8 (transparent), thereby judges whether it is qualified.
In said apparatus, add sensor 10, electric control gear 11, and operation valve 3,4 is chosen to be solenoid valve, then just above-mentioned simple detection device more is optimized for the pick-up unit of robotization.Electric control gear 11 is electrically connected respectively with operation valve 3,4, and it is closed or opens by electric control gear 11 controls.Sensor 10 is set in sheath 9, the variation of pressure measurement liquid 7 liquid levels in the sensor 10 perception hollow tubes 8, and data in time are transferred in the electric control gear 11, promptly sensor 10 is electrically connected with electric control gear 11.Electric control gear 11 can be Programmable Logic Controller of the prior art or microprocessor, can carry out data processing and computing according to its inner setting program; In electric control gear 11 is judged the hollow tube 8 of sensors 10 inputs liquid level reach setting value or the technological parameter time arrival set in it after, can both send signal to operation valve 3 and/or operation valve 4, control it and open or close.
As a kind of pick-up unit of robotization, can connect one group of pilot lamp at the output terminal of electric control gear 11 in addition, directly show the detected status of tested part; As, after the pressurize of a period of time (technological parameter decision), judge that as electric control gear 11 the liquid level value of sensor 10 inputs is lower than a certain setting value, judge that promptly this tested part is a unacceptable product, pilot lamp shown in red (or red led is bright); Judge that as electric control gear 11 the liquid level value is higher than setting value, then is judged to be certified products, pilot lamp shown in green (or green indicating lamp is bright); A display module that is connected with the output terminal of electric control gear 11 perhaps is installed, the result of electric control gear 11 can be shown with numerical value intuitively, reach the purpose of accurate measurement.
Pick-up unit of the present utility model relates to the sealing of gas, liquid, as tested part 5, seal chamber 6 with and the sealing of interior pressure measurement liquid 7 etc., all can adopt prior art to reach the purpose of this utility model, be not described in detail in this.
The course of work of the present utility model;
1. press the startup button, electric control gear 11 sends electric signal to operation valve 3,4, operation valve 3,4 conductings.Pressurized air enters by solenoid valve 3,4 in the annular seal space of measured piece 5 and seal chamber 6, and along with the rising of pressure, the pressure measurement liquid (mercury slug) in the hollow tube 8 rises, and when mercury rose to set point, electric control gear 11 control operation valves 3 were closed, and stop air feed.
2. after stopping air feed, carry out pressurize.After reaching the dwell time of process stipulation, electric control gear 11 control electromagnetic valve 4 are closed, and this moment, mercury difference-pressure meter was measured the measured piece leakage rate.Simultaneously, sensor 10 is started working, and passes the measurement result of mercury difference-pressure meter back electric control gear 11, by electric control gear with being reflected on the pilot lamp of its visual result, so that whether differentiate measured piece qualified.
Claims (3)
1. air-tightness detection device, comprise source of the gas (1) and gas pipeline (2), it is characterized in that: described gas pipeline (2) is provided with operation valve (3,4), and gas pipeline (2) feeds tested part (5) through operation valve (3), in operation valve (3,4) feeds seal chamber (6); Be provided with pressure measurement liquid (7) and hollow tube (8) in the seal chamber (6), pressure measurement liquid (7) can rise along the cavity of hollow tube (8) or descend.
2. air-tightness detection device according to claim 1 is characterized in that: described operation valve (3,4) is a solenoid valve, is electrically connected with its electric control gear that opens or closes (11) of control; Go up the sensor (10) that setting is electrically connected with electric control gear (11) at hollow tube (8), detect the liquid level of hollow tube (8) interior pressure measurement liquid (7).
3. according to right 1 or 2 described air-tightness detection devices, it is characterized in that: described pressure measurement liquid (7) is mercury, and hollow tube (8) is the double glazing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110007 CN2872339Y (en) | 2006-02-23 | 2006-02-23 | Air-tightness tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110007 CN2872339Y (en) | 2006-02-23 | 2006-02-23 | Air-tightness tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872339Y true CN2872339Y (en) | 2007-02-21 |
Family
ID=37740688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620110007 Expired - Fee Related CN2872339Y (en) | 2006-02-23 | 2006-02-23 | Air-tightness tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872339Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819812A (en) * | 2015-04-03 | 2015-08-05 | 广西威尔森环保科技开发有限公司 | Glass fiber reinforced plastic septic tank airtightness detection method |
| CN104931212A (en) * | 2015-07-02 | 2015-09-23 | 湖南菲尔斯特传感器有限公司 | A urea sensor semi-finished product leakage detection device and a leakage detection method thereof |
| CN108362447A (en) * | 2018-01-15 | 2018-08-03 | 深圳市长方集团股份有限公司 | LED lamp bead air-tightness detection method |
| CN109425466A (en) * | 2017-09-01 | 2019-03-05 | 宁波舜宇车载光学技术有限公司 | Detect the equipment and detection method of the leakproofness of workpiece |
| CN114608768A (en) * | 2022-03-11 | 2022-06-10 | 深圳潜行创新科技有限公司 | Method for detecting sealing performance of cabin of small underwater equipment |
-
2006
- 2006-02-23 CN CN 200620110007 patent/CN2872339Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819812A (en) * | 2015-04-03 | 2015-08-05 | 广西威尔森环保科技开发有限公司 | Glass fiber reinforced plastic septic tank airtightness detection method |
| CN104819812B (en) * | 2015-04-03 | 2017-03-22 | 广西威尔森环保科技开发有限公司 | Glass fiber reinforced plastic septic tank airtightness detection method |
| CN104931212A (en) * | 2015-07-02 | 2015-09-23 | 湖南菲尔斯特传感器有限公司 | A urea sensor semi-finished product leakage detection device and a leakage detection method thereof |
| CN109425466A (en) * | 2017-09-01 | 2019-03-05 | 宁波舜宇车载光学技术有限公司 | Detect the equipment and detection method of the leakproofness of workpiece |
| CN108362447A (en) * | 2018-01-15 | 2018-08-03 | 深圳市长方集团股份有限公司 | LED lamp bead air-tightness detection method |
| CN114608768A (en) * | 2022-03-11 | 2022-06-10 | 深圳潜行创新科技有限公司 | Method for detecting sealing performance of cabin of small underwater equipment |
| CN114608768B (en) * | 2022-03-11 | 2023-05-30 | 深圳潜行创新科技有限公司 | Small underwater equipment cabin tightness detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20130223 |