CN202329969U - Air tightness testing machine - Google Patents
Air tightness testing machine Download PDFInfo
- Publication number
- CN202329969U CN202329969U CN2011204539376U CN201120453937U CN202329969U CN 202329969 U CN202329969 U CN 202329969U CN 2011204539376 U CN2011204539376 U CN 2011204539376U CN 201120453937 U CN201120453937 U CN 201120453937U CN 202329969 U CN202329969 U CN 202329969U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- test machine
- airtight test
- air tightness
- pressure switch
- 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
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to metal bellows, in particular to an air tightness testing machine for testing air tightness of the metal bellows. The air tightness testing machine aims to solve problems of long testing time and low efficiency of existing air tightness testing machines. The air tightness testing machine comprises an air source, an electrical cabinet, a pressure gauge, an air vent pipe, a clamp, an electromagnetic valve I, an electromagnetic valve II and a pressure switch. According to the air tightness testing machine, the testing accuracy is improved, the testing speed is accelerated, and the production efficiency is improved. The air tightness testing machine can be used for testing the air tightness of the metal bellows.
Description
Technical field
The utility model relates to metallic bellows, is specifically related to a kind of bubble-tight airtight test machine of metallic bellows that is used to detect.
Background technology
Metallic bellows is widely used in fields such as automatic control and measurement instrument, vacuum technique, mechanical industry, power industry, communications and transportation and atomic energy industry as sensitive element, damper element, compensating element,, seal element, valve element and pipeline connecting parts.The processing metal corrugated tube uses task equipment to accomplish, and its starting material are thin-wall stainless steel steel bands, and steel band is pulled through the forming panel device; Strip deformation through the forming panel device is a tubing; Tubing the edge fit place is welded, become stainless steel welded pipe afterwards, stainless steel welded pipe is towed to the corrugated tube building mortion; The corrugated tube building mortion processes bellows-shaped on steel pipe, become corrugated tube.
The detection link of corrugated tube production comprises air-tight test; What existing checkout equipment adopted is airtight method: with two sealing of metallic bellows to be measured; Charge into the pressurized air or the nitrogen of certain pressure again toward bellows interior, afterwards corrugated tube is put into tank, whether the operator estimates leak has bubble to produce; If observe bubble explanation tube leak, otherwise then impermeability is qualified.
The structure of existing airtight test machine, as shown in Figure 1, comprise source of the gas 1, snorkel 10, electrical control cubicles 2, solenoid valve 3, tensimeter 4, anchor clamps 5; Said source of the gas 1 links to each other with solenoid valve 3, tensimeter 4 and corrugated tube 9 through snorkel 10, and said anchor clamps 5 are used for fixing corrugated tube 9, and said electrical control cubicles 2 is used for control electromagnetic valve; Said solenoid valve 3 is two-bit triplet solenoid valves, is used for controlling the flow direction of pressure gas, and flow of the compressed gas is gone into bellows interior during energising, begins airtight detection, and whether range estimation leaks; Corrugated tube and source of the gas break off during outage, and the pressure gas of bellows interior enters atmosphere and is released.
In the above-mentioned tightness test mode, corrugated tube is communicated with source of the gas all the time in testing process, even leakage has taken place corrugated tube; Pressure in the system can not change yet, and whether leaks, and leans on operator's range estimation fully; When there was little leakage in pipe, leaking the bubble that produces can be very little and discontinuous, and the long time of just possibly occur one; Because it is not obvious that bubble changes, whether the operator is difficult to detect pipe and leaks, and this kind detection method requires high to operator's level of operation; Detection time is long, and production efficiency is low.
Summary of the invention
In order to solve the above-mentioned defective that exists in the prior art, the utility model provides a kind of airtight test machine.This airtight test machine also comprises electromagnetic valve I, electromagnetic valve II and pressure switch, can detect leakage situation and slight situation of leaking that corrugated tube exists, and detection efficiency is higher.
In order to achieve the above object, the utility model adopts following technical proposals:
The utility model provides a kind of airtight test machine.This airtight test machine comprises source of the gas, electrical control cubicles, tensimeter, snorkel and anchor clamps, and its feature is: said airtight test machine also comprises electromagnetic valve I, electromagnetic valve II and pressure switch.Said anchor clamps are used for fixing and seal the two ends of the corrugated tube that needs detection, and an end of corrugated tube is connected with electromagnetic valve II through snorkel; The other end of said corrugated tube is connected with pressure switch through snorkel.Said pressure switch is used to detect the pressure of bellows interior, and when pressure reaches certain value, emits the gas in the corrugated tube, and pressure switch can be set alarming value.Said electrical control cubicles is used for the parts by electric power control such as control electromagnetic valve I and electromagnetic valve II, and then the action of control airtight test machine;
Further, said airtight test machine also comprises audible-visual annunciator.Said audible-visual annunciator links to each other with said pressure switch, and when bellows interior pressure was lower than the setting value on the pressure switch, alarm can send the sound and light signal alert, and was simple to operate, and operator's job requirements is reduced.
Further, said electromagnetic valve I, conducting during energising, closed during outage; Said electromagnetic valve II, closed during energising, conducting during outage.
Further, said electromagnetic valve I is the 2/2-way valve, and is normally closed, and conducting during energising is closed during outage; Said electromagnetic valve II is the 2/2-way valve, often opens, and is closed during energising, conducting during outage.
Further, said pressure switch is set with alarming value according to the pressure size.
Further, said electrical control cubicles is provided with timer.
Further, said source of the gas is pressurized air or compressed nitrogen.Said pressurized air or compressed nitrogen have certain pressure.
Further, said pressure switch is an electronic pressure switch.
The airtight test machine that the utility model provides has increased an electromagnetic valve II, and principle of work is different fully with existing airtight test machine; It changes airtight detection method is the pressurize detection method, and airtight detection principle is more reasonable, during test; With anchor clamps seal bellows two ends, electromagnetic valve I is switched on earlier, and pressure gas will get into bellows interior through electromagnetic valve I and electromagnetic valve II; When the gas that injects reaches the force value of setting, electromagnetic valve II energising, electromagnetic valve I outage; Electromagnetic valve II and electromagnetic valve I are all closed, and the path between corrugated tube and source of the gas just is cut off, and begins airtight detection.Can utilize timer on the electrical control cubicles to come the time of control detection, if in the time range of setting, the pressure of pressure switch indication remains unchanged, and not leakage of pipe be described, otherwise then be judged to be defective.In addition, can also utilize pressure switch to set alarming value, if corrugated tube has leakage, the pressure in the pipe will descend, and pressure switch detects will send the sound and light alarm signal after pressure descends.
Compared with prior art; The airtight test machine that the utility model provides has adopted improved equipment pressure testing principle, when detecting, can as existing airtight test machine, not be communicated with source of the gas all the time, but after the arrival set pressure, just cut off and being connected of source of the gas; Thereby pressure gas is sealed in the corrugated tube to be measured; Utilize the fixing gas of these quality as detecting media, in case leaking appears in body, the pressure in the pipe will descend; Pressure switch detects will send the sound and light alarm signal after pressure descends, and the alert corrugated tube has leakage.This airtight test machine has improved accuracy of detection, has reduced the requirement to the operator, has accelerated detection speed, and detection efficiency is higher, thereby has improved production efficiency.Use this airtight test machine, it is about 15% that the operation detection speed improves, and practiced thrift detection time; The operator just can be on duty through simple training, reduced the requirement to the operator, makes product processing more stable, and reduced unnecessary loss, practiced thrift resource, created the good social benefit.This airtight test machine can be used for detecting the impermeability of metallic bellows, also can be used for detecting the impermeability of other tubing etc.
Description of drawings
Fig. 1 is existing airtight test machine structural representation;
The airtight test machine structural representation that Fig. 2 provides for the utility model.
Among the figure: the 1st, source of the gas, the 2nd, electrical control cubicles, the 3rd, solenoid valve, the 4th, tensimeter, the 5th, anchor clamps, the 6th, electromagnetic valve I, the 7th, electromagnetic valve II, the 8th, pressure switch, the 9th, corrugated tube, the 10th, snorkel, the 11st, audible-visual annunciator.
Embodiment
Airtight test machine as shown in Figure 1, that the utility model provides comprises source of the gas 1, electrical control cubicles 2, tensimeter 4, anchor clamps 5, electromagnetic valve I 6, electromagnetic valve II 7, electronic pressure switch 8, snorkel 10.
Said electromagnetic valve I is the 2/2-way valve, and is normally closed, and conducting during energising is closed during outage; Said electromagnetic valve II is the 2/2-way valve, often opens, and is closed during energising, conducting during outage.
Said source of the gas 1 is for having the pressurized air of certain pressure.
Above-mentioned airtight test machine, during test, earlier with anchor clamps 5 seal bellowss 9 two ends, the electromagnetic valve I energising; The electromagnetic valve II outage, pressure gas will get into bellows interior through electromagnetic valve I and electromagnetic valve II, when the gas that injects reaches the force value of setting, the electromagnetic valve II energising; The electromagnetic valve I outage, electromagnetic valve I and electromagnetic valve II are closed, and the path between corrugated tube and source of the gas just is cut off; Begin airtight detection, in case leaking appears in body, the pressure in the pipe will descend; Pressure switch is set with alarming value, and after managing interior pressure decline and being lower than alarming value, pressure switch will be sent the sound and light alarm signal; Prompting operation person's corrugated tube has leakage, and when pressure reaches certain value, emits the gas in the corrugated tube.
Airtight test machine as shown in Figure 1, that the utility model provides comprises source of the gas 1, electrical control cubicles 2, and tensimeter 4, anchor clamps 5, electromagnetic valve I 6, electromagnetic valve II 7, electronic pressure switch 8, snorkel 10 also comprises audible-visual annunciator 11.One end of corrugated tube 9 is connected with electromagnetic valve II 7 through snorkel 10, and the other end of said corrugated tube 9 is connected with electronic pressure switch 8 through snorkel 10.Said electronic pressure switch 8 is set with alarming value according to the pressure size, is used to detect corrugated tube 9 pressure inside, and when pressure reaches certain value, emits the gas in the corrugated tube.Said tensimeter 4 show corrugated tubes 9 just charge gas the time internal pressure.Said audible-visual annunciator 11 links to each other with electronic pressure switch 8, and when corrugated tube 9 internal pressures were lower than the setting value of electronic pressure switch 8, audible-visual annunciator 11 can send sound and light alarm signal prompt operating personnel.
Airtight test machine as shown in Figure 1, that the utility model provides comprises source of the gas 1, electrical control cubicles 2, tensimeter 4, anchor clamps 5, electromagnetic valve I 6, electromagnetic valve II 7, electronic pressure switch 8, snorkel 10.Said electrical control cubicles 2 is provided with timer.One end of said corrugated tube 9 is connected with electromagnetic valve II 7 through snorkel 10, and the other end of said corrugated tube 9 is connected with electronic pressure switch 8 through snorkel 10.Said electronic pressure switch 8 is used to detect corrugated tube 9 pressure inside, and when pressure reaches certain value, emits the gas in the corrugated tube.Said tensimeter 4 show corrugated tubes 9 just charge gas the time internal pressure.
Above-mentioned airtight test machine is during test, earlier with anchor clamps 5 seal bellowss 9 two ends; The electromagnetic valve I energising, the electromagnetic valve II outage, pressure gas will get into bellows interior through electromagnetic valve I and electromagnetic valve II; When the gas that injects reaches the force value of setting, electromagnetic valve II energising, electromagnetic valve I outage; Electromagnetic valve I and electromagnetic valve II are closed, and the path between corrugated tube and source of the gas just is cut off, and begins airtight detection.Utilize the timer control detection time on the electrical control cubicles, if in the time range of setting, the pressure of electron pressure switch indication remains unchanged, and explains that pipe does not leak, otherwise then is judged to be defective.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.Every equalization that content is done according to the present invention changes and modifies, and all is encompassed in the claim of the present invention.
Claims (8)
1. an airtight test machine comprises source of the gas, electrical control cubicles, tensimeter, snorkel and anchor clamps, it is characterized in that: said airtight test machine also comprises electromagnetic valve I, electromagnetic valve II and pressure switch.
2. airtight test machine as claimed in claim 1, it is characterized in that: said airtight test machine also comprises audible-visual annunciator.
3. an airtight test machine as claimed in claim 1 is characterized in that: said electromagnetic valve I, conducting during energising, closure during outage; Said electromagnetic valve II, closed during energising, conducting during outage.
4. airtight test machine as claimed in claim 1, it is characterized in that: said electromagnetic valve I is the 2/2-way valve, and is normally closed, conducting during energising is closed during outage; Said electromagnetic valve II is the 2/2-way valve, often opens, and is closed during energising, conducting during outage.
5. airtight test machine as claimed in claim 1, it is characterized in that: said pressure switch is set with alarming value according to the pressure size.
6. airtight test machine as claimed in claim 1, it is characterized in that: said electrical control cubicles is provided with timer.
7. airtight test machine as claimed in claim 1, it is characterized in that: said source of the gas is pressurized air or compressed nitrogen.
8. airtight test machine as claimed in claim 1, it is characterized in that: said pressure switch is an electronic pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204539376U CN202329969U (en) | 2011-11-16 | 2011-11-16 | Air tightness testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204539376U CN202329969U (en) | 2011-11-16 | 2011-11-16 | Air tightness testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202329969U true CN202329969U (en) | 2012-07-11 |
Family
ID=46441947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204539376U Expired - Fee Related CN202329969U (en) | 2011-11-16 | 2011-11-16 | Air tightness testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202329969U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103471772A (en) * | 2013-07-04 | 2013-12-25 | 河南联塑实业有限公司 | Sealing device for end parts of pipe |
| CN114112238A (en) * | 2021-11-18 | 2022-03-01 | 浙江宝森波纹管有限公司 | Metal corrugated pipe air tightness detection device and implementation method thereof |
-
2011
- 2011-11-16 CN CN2011204539376U patent/CN202329969U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103471772A (en) * | 2013-07-04 | 2013-12-25 | 河南联塑实业有限公司 | Sealing device for end parts of pipe |
| CN114112238A (en) * | 2021-11-18 | 2022-03-01 | 浙江宝森波纹管有限公司 | Metal corrugated pipe air tightness detection device and implementation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204694421U (en) | Valve leak detection proving installation | |
| CN103323189B (en) | A kind of ship pipeline negative pressure leakage detection cover | |
| CN104236826A (en) | Bagged product tightness detection device and method | |
| CN202329969U (en) | Air tightness testing machine | |
| CN108458844A (en) | A kind of intelligence bellows air-tightness batch detecting device and detection method | |
| CN103940559A (en) | Leak detection device for valve | |
| CN110608855A (en) | Device for detecting air leakage in target piece production process | |
| CN205958205U (en) | Multichannel device that leaks hunting | |
| CN202305141U (en) | Air-tightness detecting device of gate valve | |
| CN203350001U (en) | Air-conditioner filling device tightness detection tool | |
| CN204612880U (en) | A kind of leak-checking apparatus of heat interchanger | |
| CN102052996A (en) | Simple leakage detection instrument for liquid container and using method thereof | |
| CN103674717A (en) | Bursting test machine | |
| CN201060087Y (en) | Self-checking unit of leakage testing machine | |
| CN210487193U (en) | Device for detecting air leakage in target piece production process | |
| CN202110046U (en) | Leakage testing system for liquid container of automobile shock absorber | |
| CN209961426U (en) | Quick measuring device of muffler leakproofness | |
| CN109458564B (en) | Nitrogen gas pipeline leakage detecting and temporary plugging device | |
| CN216201080U (en) | Leakage self-alarming valve | |
| CN207050936U (en) | Nylon shell air tightness detection equipment | |
| CN207215407U (en) | A kind of leak detection charger for producing Inflatable ring main unit | |
| CN212844233U (en) | High-precision air pressure leakage detection device | |
| CN206248284U (en) | A kind of crossover sub device for detecting sealability | |
| CN205449419U (en) | Fuel compartment air -tight test's supplementary component | |
| CN219977715U (en) | Bottled product seals leak hunting module |
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: 20120711 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |