CN205373975U - Simple and easy cladding accumulation formula gas tightness detection device - Google Patents
Simple and easy cladding accumulation formula gas tightness detection device Download PDFInfo
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- CN205373975U CN205373975U CN201620129975.9U CN201620129975U CN205373975U CN 205373975 U CN205373975 U CN 205373975U CN 201620129975 U CN201620129975 U CN 201620129975U CN 205373975 U CN205373975 U CN 205373975U
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Abstract
The utility model provides a simple and easy cladding accumulation formula gas tightness detection device, including a membrane, sealing clay, connecting piece, helium mass spectrometer leak detector, helium air supply, the sealing clay is a design sealing clay spare, and it includes calibration ring and external mold, circular ring shaped structure that calibration ring made for elastic material, and the outer die sleeve of being made by the vacuum cement glues and wraps up outside calibration ring. The utility model discloses well utilization design sealing clay spare replaces sealing clay in bulk to seal the sealed operation at membrane and detected workpiece detection area edge. Design sealing clay spare is compared has obvious advantage in sealing clay in bulk: its structure that adopts external mold parcel calibration ring can not produce the leak source, has superior sealing performance, after the leak hunting operation was accomplished, design sealing clay spare can be peeled off together with sealing the membrane together, and labour saving and time saving just can use repeatedly, reaches reduce cost's purpose.
Description
Technical field
This utility model relates to a kind of simple and easy cladding accumulating air-tightness detection device.
Background technology
Airtight detection technique is widely used, and conventional detection method has according to detection precision sequence: helium mass spectroscopic assays, hydrogen detection method, differential pressure measuring method, water logging gas collection method etc.；Wherein, helium mass spectroscopic assays with high sensitivity, reliability, repeated and corresponding time and checkout time enjoy trust faster.Helium mass spectroscopic assays is developed in the forties in 20th century, and it is applied and is developed to today, achieves the achievement of splendidness.Helium Leak Test is relatively more, can be divided into two types according to the measurement purpose of detected pieces, and one is leak source type, and another kind is leak rate type；Practice examining process to select the most reasonable approach according to the purpose of inspection, will determine with the concrete condition of tested device, use various leak hunting methods flexibly.Version according to tested parts common in producing, leak rate type helium mass spectroscopic assays can be divided into: volume method of cumulative scale, cover box method of cumulative scale, simple and easy cladding method of cumulative scale, the preset method of cumulative scale of structure, suction gun cover box method, equivalence margin leak rate method etc., wherein, simple and easy cladding method of cumulative scale is widely used at the parts that big volume, sealing requirements are strict, such as spacecraft, rocket liquid fuel material storing box, satellite, electronic devices and components etc..
Simple and easy cladding method of cumulative scale operational approach is as follows: the detection region vacuum sealer on test specimen is covered, and uses vacuum cement by vacuum seal film edge and the bonding of test specimen contact position, forms preset accumulation cavity volume；With vacuum rubber pipe, helium mass spectrometer leak detector is connected in preset accumulation cavity volume, with trachea, helium source of the gas is connected with test specimen, form detection system；Being filled with helium again in test specimen, if test specimen has leak source, helium mass spectrometer leak detector just can show its leak rate.In aforesaid operations method, adopting vacuum cement that vacuum sealer is prolonged limit and be sequentially carried out bonding, sealing clay taken amount and bond locations vary with each individual, and very easily occur that leak source causes leakage, impact leak detection result；Meanwhile, after detection, removing vacuum cement and take time and effort, and the repeatable utilization rate of sealing clay is low, waste is serious.
Utility model content
For the problems referred to above, this utility model intend providing a kind of can make above-mentioned situation be improved significantly simple and easy cladding accumulating air-tightness detection device.
The technical scheme of this simple and easy cladding accumulating air-tightness detection device is achieved in that
Described simple and easy cladding accumulating air-tightness detection device, including the sealer covered on examined workpiece detection region, it is bonded in the sealing clay in sealer and examined workpiece detection edges of regions, stretch into the connector in the preset accumulation cavity volume formed between sealer and detection region, the helium mass spectrometer leak detector being connected with connector, and helium source of the gas, described sealing clay is sizing sealing clay part, it includes shaping loop and external mold, shaping loop is the circular ring that elastomeric material prepares, and the outer die casing being made up of vacuum cement is viscous to be wrapped in outside shaping loop.
Further, to be that the sealing clay die combination of semi-annular shape is bonding by two hollow shapes, cross section form described external mold.
Further, described shaping loop is made up of the rubber that hardness is shore 30 °～50 °.
Further, described shaping loop is made up of the lipid product that hardness is shore 30 °～50 °.
Further, described connector includes suction gun and rubber tube.
Further, described simple and easy cladding accumulating air-tightness detection device also includes extract system.
In simple and easy cladding accumulating air-tightness detection device provided by the utility model, sizing sealing clay part is utilized to replace sealing clay in bulk to carry out sealer and the sealing operation of examined workpiece detection edges of regions.Sizing shaping loop within sealing clay part can carry out adaptability deformation according to the overseas profile of detection zone together with the viscous external mold being wrapped in outside shaping loop of set under certain External Force Acting, the imitated structure matched with the overseas profile of detection zone it is deformed into by the circular ring of original state, and it is bonded in sealer and examined workpiece detection edges of regions, to play sealing function；After leak detection operation completes, sizing sealing clay part bonding being integrally formed peels off examined workpiece detection region together with sealer, and sealing is deposited, in order to examined workpiece of the same race is detected time leak detection in region and uses by next time.Sizing sealing clay part has clear advantage compared to sealing clay in bulk: sealing clay in bulk bonds successively around the overseas profile pointwise of detection zone, because of taken amount and viscous and position difference, very easily occur discontinuously, cause leak source, and sealing clay part of shaping adopts the structure of external mold parcel shaping loop, under External Force Acting, shaping loop is together quickly deformed together with the viscous external mold being wrapped in outside shaping loop of set, and the phenomenon that sealing clay is interrupted will not occur, thus without producing leak source, there is superior sealing property；After leak detection operation completes, sealing clay in bulk needs pointwise to peel off, bothersome effort, and the sealing clay after peeling off disperses, bonding effect is not good again, causing that the repeatable utilization rate of sealing clay is low, increase cost, waste is serious, and sealing clay part of shaping can be peeled off together with sealer, time saving and energy saving, as long as and store method proper, its performance is just unaffected, can Reusability, reduce the purpose of cost.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is this simple and easy cladding accumulating air-tightness detection device structural representation；
Fig. 2 is sizing sealing clay part structural representation；
Fig. 3 is sizing sealing clay part sectional view；
Fig. 4 is shaping loop structural representation；
Fig. 5 is a kind of deformation state schematic diagram of sizing sealing clay part；
Fig. 6 is the another kind of deformation state schematic diagram of sizing sealing clay part.
Description of reference numerals:
In figure: 1. sealer, 2. sizing sealing clay part, 3. suction gun, 4. helium mass spectrometer leak detector, 5. preset accumulation cavity volume, 6. examined workpiece, 7. rubber tube, 21. shaping loops, 22. external molds, 221. sealing clay moulds.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " etc. are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more these features.In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model by concrete condition.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Simple and easy cladding accumulating air-tightness detection device described in the utility model, as shown in Figures 1 to 4, including covering in the sealer 1 that examined workpiece 6 detects on region, it is bonded in sealer 1 and sealing clay that examined workpiece 6 detects in edges of regions, stretch into the connector in the preset accumulation cavity volume 5 formed between sealer 1 and detection region, the helium mass spectrometer leak detector 4 being connected with connector, and helium source of the gas, described sealing clay is sizing sealing clay part 2, it includes shaping loop 21 and external mold 22, the circular ring that shaping loop 21 prepares for elastomeric material, the external mold 22 being made up of vacuum cement overlaps viscous being wrapped in outside shaping loop 21.
In this simple and easy cladding accumulating air-tightness detection device, utilize sizing sealing clay part 2 to replace sealing clay in bulk to carry out sealer 1 and examined workpiece 6 detects the sealing operation of edges of regions.As shown in Figure 5,6, sizing shaping loop 21 within sealing clay part 2 can carry out adaptability deformation according to the overseas profile of detection zone together with the viscous external mold 22 being wrapped in outside shaping loop 21 of set under certain External Force Acting, the imitated structure matched with the overseas profile of detection zone it is deformed into by the circular ring of original state, and it is bonded in sealer 1 and examined workpiece 6 detects edges of regions, to play sealing function；After leak detection operation completes, the sizing sealing clay part 2 bonding being integrally formed is peeled off examined workpiece 6 together with sealer 1 and is detected region, and sealing is deposited, in order to next time examined workpiece 6 of the same race is detected time leak detection in region and uses.Sizing sealing clay part 2 has clear advantage compared to sealing clay in bulk: sealing clay in bulk bonds successively around the overseas profile pointwise of detection zone, because of taken amount and viscous and position difference, very easily occur discontinuously, cause leak source, and sealing clay part 2 of shaping adopts external mold 22 to wrap up the structure of shaping loop 21, under External Force Acting, shaping loop 21 is together quickly deformed together with the viscous external mold 22 being wrapped in outside shaping loop 21 of set, and the phenomenon that sealing clay is interrupted will not occur, thus without producing leak source, there is superior sealing property；After leak detection operation completes, sealing clay in bulk needs pointwise to peel off, bothersome effort, and the sealing clay after peeling off disperses, bonding effect is not good again, causing that the repeatable utilization rate of sealing clay is low, increase cost, waste is serious, and sealing clay part 2 of shaping can be peeled off together with sealer 1, time saving and energy saving, as long as and store method proper, its performance is just unaffected, can Reusability, reduce the purpose of cost.
In this simple and easy cladding accumulating air-tightness detection device, as it is shown on figure 3, described external mold 22 is combined bonding forming by the sealing clay mould 221 that two hollow shapes, cross section are semi-annular shape.
In this simple and easy cladding accumulating air-tightness detection device, described shaping loop 21 is made up of the rubber that hardness is shore 30 °～50 °.
In this simple and easy cladding accumulating air-tightness detection device, described shaping loop 21 can also be made up of the lipid product that hardness is shore 30 °～50 °.
In this simple and easy cladding accumulating air-tightness detection device, described connector includes suction gun 3 and rubber tube 7.
In this simple and easy cladding accumulating air-tightness detection device, described simple and easy cladding accumulating air-tightness detection device also includes extract system, before filling helium leak test, first examined workpiece 6 is slightly taken out and takes out in advance, discharges interference factor.
The method utilizing above-mentioned simple and easy cladding accumulating air-tightness detection device to carry out measured workpiece air-leakage test, comprises the following steps:
One, preparation sizing sealing clay part 2；Detect region according to examined workpiece 6 and prepare the shaping loop 21 that size matches, then adopt bulk vacuum sealing clay to make external mold 22, and external mold 22 is overlapped viscous being wrapped in outside shaping loop 21；
Two, sealer 1 is covered in examined workpiece 6 to detect on region；
Three, sizing sealing clay part 2 is positioned over sealer 1 outer rim, pressing sizing sealing clay part 2 so that it is being deformed into and match with the examined workpiece 6 overseas profile of detection zone, sealer 1 and examined workpiece 6 are detected edges of regions adhesive seal by the sizing sealing clay part 2 after deformation；
Four, being connected with helium mass spectrometer leak detector 4 connector one end, the other end stretches in the preset accumulation cavity volume 5 formed between sealer 1 and detection region；
Five, starting helium source of the gas, fill helium in examined workpiece 6, helium mass spectrometer leak detector 4 is hunted leak；
Six, having hunted leak, taken off together with sealer 1 by the sizing sealing clay part 2 matched with the examined workpiece 6 overseas profile of detection zone, sealing is deposited, and uses in order to leak detection operation next time.
Further, in the step one of described simple and easy cladding accumulating air-tightness detection method, external mold 22 is made up of the sealing clay mould 221 that two hollow shapes, cross section are semi-annular shape, first bulk vacuum sealing clay is filled in shaper rolloff and makes two sealing clay moulds 221, being wrapped in outside shaping loop 21 by two sealing clay moulds 221 again, the structure that is finally bonded into one by two sealing clay moulds 221 forms the viscous external mold 22 being wrapped in outside shaping loop 21 of set.
Further, the step 4 of described simple and easy cladding accumulating air-tightness detection method, further comprising the steps of between step 5:
Extract system is connected with examined workpiece 6, starts extract system, examined workpiece 6 is slightly taken out and takes out in advance.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (6)
1. a simple and easy cladding accumulating air-tightness detection device, including the sealer (1) covered on examined workpiece (6) detection region, it is bonded in the sealing clay in sealer (1) and examined workpiece (6) detection edges of regions, stretch into the connector in the preset accumulation cavity volume (5) formed between sealer (1) and detection region, the helium mass spectrometer leak detector (4) being connected with connector, and helium source of the gas, it is characterized in that: described sealing clay is sizing sealing clay part (2), it includes shaping loop (21) and external mold (22), the circular ring that shaping loop (21) prepares for elastomeric material, external mold (22) set being made up of vacuum cement glues and is wrapped in shaping loop (21) outward.
2. simple and easy cladding accumulating air-tightness detection device according to claim 1, it is characterised in that: described external mold (22) is combined bonding forming by the sealing clay mould (221) that two hollow shapes, cross section are semi-annular shape.
3. simple and easy cladding accumulating air-tightness detection device according to claim 1 and 2, it is characterised in that: described shaping loop (21) is made up of the rubber that hardness is shore 30 °～50 °.
4. simple and easy cladding accumulating air-tightness detection device according to claim 1 and 2, it is characterised in that: described shaping loop (21) is made up of the lipid product that hardness is shore 30 °～50 °.
5. simple and easy cladding accumulating air-tightness detection device according to claim 1, it is characterised in that: described connector includes suction gun (3) and rubber tube (7).
6. simple and easy cladding accumulating air-tightness detection device according to claim 1, it is characterised in that: also include extract system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620129975.9U CN205373975U (en) | 2016-02-17 | 2016-02-17 | Simple and easy cladding accumulation formula gas tightness detection device |
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| CN201620129975.9U CN205373975U (en) | 2016-02-17 | 2016-02-17 | Simple and easy cladding accumulation formula gas tightness detection device |
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| CN205373975U true CN205373975U (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486466A (en) * | 2016-02-17 | 2016-04-13 | 天津博益气动股份有限公司 | Simply-coated accumulative air tightness detection device and method |
| CN107702870A (en) * | 2017-11-07 | 2018-02-16 | 苏州富强科技有限公司 | A kind of method for conducting leak test of sealing structure |
-
2016
- 2016-02-17 CN CN201620129975.9U patent/CN205373975U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486466A (en) * | 2016-02-17 | 2016-04-13 | 天津博益气动股份有限公司 | Simply-coated accumulative air tightness detection device and method |
| CN107702870A (en) * | 2017-11-07 | 2018-02-16 | 苏州富强科技有限公司 | A kind of method for conducting leak test of sealing structure |
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