CN219777425U - Auxiliary jig for air tightness test - Google Patents
Auxiliary jig for air tightness test Download PDFInfo
- Publication number
- CN219777425U CN219777425U CN202222415186.XU CN202222415186U CN219777425U CN 219777425 U CN219777425 U CN 219777425U CN 202222415186 U CN202222415186 U CN 202222415186U CN 219777425 U CN219777425 U CN 219777425U
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- CN
- China
- Prior art keywords
- air
- jig
- sample
- air flow
- working surface
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- 239000011888 foil Substances 0.000 claims abstract description 22
- 230000035699 permeability Effects 0.000 claims description 14
- 238000010030 laminating Methods 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 abstract description 12
- 239000007789 gas Substances 0.000 description 49
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000005030 aluminium foil Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses an air tightness test auxiliary jig which comprises a jig base and a jig upper cover, wherein a working surface is arranged on the jig base, a gas circulation cavity is arranged on the working surface, an air inlet hole and an air outlet hole which are communicated with the gas circulation cavity are arranged on the jig base, the air inlet hole and the air outlet hole are used for being connected with a gas transmittance tester, an aluminum foil used for being connected with a sample to be tested, one end of which is sealed and the other end of which is open, is adhered to the working surface, an inner cavity of the sample is communicated with the gas circulation cavity, and the jig upper cover is adhered to the working surface and compresses the aluminum foil. After the test is finished, if the test of the sample is required to be replaced, the upper cover of the jig is detached from the base of the jig, then the aluminum foil sealed on the tested sample is taken down from the working surface, and the aluminum foil is connected with the sample, so that the aluminum foil is taken down from the working surface and is equivalent to separating the tested sample from the base of the jig, and the other sample to be tested can be replaced, thereby effectively improving the test efficiency.
Description
Technical Field
The utility model relates to the technical field of air tightness test, in particular to an auxiliary jig for air tightness test.
Background
Currently, the gas permeability is generally tested by using a gas permeability test auxiliary bracket in combination with a gas permeability tester. Wherein, gas permeability test auxiliary stand includes copper, intake pipe and outlet duct run through the copper respectively, the department of running through is welded with silver and is sealed, the first end and a copper surface connection of intake pipe and outlet duct, the sample of gas permeability to be tested is hollow structure body, laminate the sealed another surface at the copper with the open terminal surface laminating of this sample, and the inner chamber and the first end intercommunication of intake pipe and outlet duct of this sample, the second end and the gas permeability tester of this intake pipe and outlet duct are connected, realize the purpose of this sample gas permeability test through this gas permeability tester. However, after each test of the sample, the sealant needs to be scraped manually by an auxiliary tool (blade), and then another sample to be tested is replaced, which not only results in low test efficiency, but also increases the labor intensity of test operators.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide an auxiliary jig for testing air tightness, which does not need to scrape off sealant by an auxiliary tool (blade), so that the testing efficiency can be effectively improved, and the labor intensity of testing operators is reduced.
The utility model adopts the following technical scheme:
the utility model provides an air tightness test auxiliary jig, includes tool base and tool upper cover, have the working face on the tool base, be provided with the gas circulation chamber on the working face, be provided with on the tool base all with inlet port and the venthole of gas circulation chamber intercommunication, the inlet port be used for with the gas-out end intercommunication of gas permeability tester, the venthole be used for with the inlet end intercommunication of gas permeability tester for with the aluminium foil bonding that the open sample that awaits measuring of one end closed the other end is connected on the working face, and the inner chamber of sample with gas circulation chamber intercommunication, the laminating of tool upper cover is in on the working face and compress tightly the aluminium foil.
Further, the working face is further provided with an annular air flow groove, the annular air flow groove is located at the periphery of the air flow cavity, the jig base is provided with vent holes and exhaust holes which are communicated with the annular air flow groove, one end of each vent hole communicated with the annular air flow groove is an air flow input end, one end of each exhaust hole communicated with the annular air flow groove is an air flow output end, and the air flow input ends and the air flow output ends are symmetrically arranged relatively.
Further, the annular air flow groove and the air flow cavity are coaxially arranged.
Further, the air inlet hole and the air outlet hole are the same in size.
Further, the surface of the jig upper cover attached to the working surface is the same as the working surface in size.
Further, the jig upper cover is locked with the jig base through the locking piece to be attached to the working face.
Further, a cavity for avoiding the empty sample is arranged on the upper cover of the jig.
Further, the avoidance cavity is arranged coaxially with the gas circulation cavity.
Compared with the prior art, the utility model has the beneficial effects that:
when the auxiliary jig for testing the air tightness is used, as the air circulation cavity is communicated with the inner cavity of the sample to be tested, the air inlet hole and the air outlet hole are respectively connected with the air permeability tester through the air inlet pipeline and the air outlet pipeline, so that the air permeability test of the sample can be completed; after the test is finished, if the test of the sample is required to be replaced, the upper cover of the jig is detached from the base of the jig, then the aluminum foil sealed on the tested sample is taken down from the working surface, and the aluminum foil is connected with the sample, so that the aluminum foil is taken down from the working surface and is equivalent to separating the tested sample from the base of the jig, and another sample to be tested can be replaced, thereby effectively improving the test efficiency and reducing the labor intensity of test operators.
Drawings
FIG. 1 is a schematic diagram of an auxiliary jig for testing air tightness according to the present utility model;
FIG. 2 is a schematic diagram of a fixture base according to an embodiment of the present utility model;
FIG. 3 is a schematic view of another angle junction of a fixture base according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a fixture upper cover according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a sample structure according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of another embodiment of the present utility model involving a sample.
In the figure: 10. a jig base; 101. a working surface; 1011. a gas flow chamber; 1012. an annular air flow groove; 102. an air inlet hole; 103. an air outlet hole; 104. a vent hole; 105. an exhaust hole; 20. a jig upper cover; 201. avoiding a cavity; 202. a locking hole; 30. a sample; 301. aluminum foil.
Detailed Description
The present utility model will be described with priority in the following description with reference to the drawings and the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly, indirectly, through intermediaries, or in communication with each other. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-6, the utility model discloses an air tightness test auxiliary jig, which comprises a jig base 10 and a jig upper cover 20, wherein the jig base 10 is provided with a working surface 101, a gas circulation cavity 1011 is arranged on the working surface 101, the jig base 10 is provided with an air inlet hole 102 and an air outlet hole 103 which are all communicated with the gas circulation cavity 1011, the air inlet hole 102 is communicated with an air outlet end of a gas transmittance tester, and the air outlet hole 103 is communicated with an air inlet end of the gas transmittance tester. Wherein, an aluminum foil 301 for connecting with a sample to be tested, one end of which is closed and the other end of which is open, is adhered to the working surface 101, and the inner cavity of the sample 30 is communicated with the gas circulation cavity 1011, and the upper cover 20 of the jig is attached to the working surface 101 and compresses the aluminum foil 301.
As can be appreciated by those skilled in the art, in this embodiment, the isobaric test method is adopted to perform the gas transmittance test on the sample 30, that is, when the auxiliary fixture for testing the air tightness of the present utility model is used, the air inlet hole 102 is communicated with the air outlet port of the gas transmittance tester through the air inlet pipe, and the air outlet hole 103 is communicated with the air inlet port of the gas transmittance tester through the air outlet pipe. Assuming that the test gas is oxygen in air, nitrogen is used as carrier gas, the nitrogen enters the gas circulation cavity 1011 from the gas output end of the gas transmittance tester through the gas inlet hole 102 and flows back into the gas transmittance tester through the gas outlet hole 103 after passing through the inner cavity of the sample 30, and the gas transmittance test of the sample 30 can be completed by testing the oxygen content of the nitrogen flowing back into the gas transmittance tester. After the test is finished, if the test of the sample 30 is required to be replaced, the upper cover 20 of the jig is only required to be taken down from the base 10 of the jig, the aluminum foil 301 is torn from the working surface 101, and the aluminum foil 301 is connected with the sample 30, so that the aluminum foil 301 is torn from the working surface 101 to separate the sample 30 after the test from the base 10 of the jig, and therefore, the other sample 30 to be tested can be replaced, the test efficiency can be effectively improved, and the labor intensity of test operators is reduced.
In this embodiment, the working surface 101 is further provided with an annular air flow groove 1012, and the annular air flow groove 1012 is located at the outer periphery of the air flow chamber 1011, that is, the annular air flow groove 1012 is located at the outer side of the air flow chamber 1011. The jig base 10 is further provided with a vent hole 104 and an exhaust hole 105 which are both communicated with the annular airflow groove 1012, one end of the vent hole 104, which is communicated with the annular airflow groove 1012, is an airflow input end, one end of the exhaust hole 105, which is communicated with the annular airflow groove 1012, is an airflow output end, and the airflow input end and the airflow output end are symmetrically arranged relatively. Therefore, when the auxiliary jig and the gas transmittance test are combined for use in the gas transmittance test of the sample 30, the first gas pipe is communicated with the vent 104, the second gas pipe is communicated with the vent 105, pure nitrogen (the same as the carrier gas) is introduced into the first gas pipe, the pure nitrogen flows in the annular gas flow groove 1012, and then is discharged from the second gas pipe through the vent 105, so that the effect of preventing external air from entering the gas circulation cavity 1011 is achieved, and the air tightness of the gas circulation cavity 1011 isolated from the outside is further improved. It can be specifically understood that if the sealing property of the adhesion between the aluminum foil 301 and the working surface 101 is leaked, that is, the external air can enter the working surface 101 from the joint between the aluminum foil 301 and the working surface 101, and the air entering the working surface 101 is taken away by the flowing pure nitrogen, so as to achieve the purpose of preventing the external air from entering the gas circulation cavity 1011.
In this embodiment, the annular gas flow groove 1012 is coaxial with the gas flow chamber 1011, so that the annular gas flow groove 1012 can be processed conveniently, and the nitrogen in the annular gas flow groove 1012 can be uniformly distributed outside the gas flow chamber 1011.
In this embodiment, the air inlet hole 102 and the air outlet hole 103 have the same size, so that the flow rate of the air entering the air circulation cavity 1011 is the same as the flow rate of the air exiting the air circulation cavity 1011, and the test effect is better.
In this embodiment, the surface of the upper jig cover 20 attached to the working surface 101 is the same as the working surface 101, that is, the surface of the upper jig cover 20 attached to the working surface 101 is completely attached to the working surface 101, so that the attachment degree of the aluminum foil 301 to the working surface 101 can be further improved. Of course, the jig upper cover 20 is provided with a cavity 201 for avoiding the space of the sample 30, so it can be understood that the closed end of the sample 30 passes through the cavity 201, then the aluminum foil 301 connected with the sample 30 is placed on the working surface 101, the through hole of the aluminum foil 301 is communicated with the open end of the sample 30, and finally the jig upper cover 20 is locked with the jig base 10 by the locking member, so that the aluminum foil 301 is adhered and sealed on the working surface 101.
Specifically, the locking members are screws, locking holes 202 are respectively formed in four corners of the upper cover 20, threaded holes corresponding to the locking holes 202 one by one are formed in the working face 101, and the screws are sequentially threaded through the locking holes 202 and the threads and locked, so that the upper cover 20 and the base 10 can be locked. Further, since the inner cavity of the sample 30 communicates with and is coaxial with the gas flow chamber 1011, the hollow cavity is disposed coaxially with the gas flow chamber 1011 so as to avoid the sample 30.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (8)
1. The utility model provides an air tightness test auxiliary jig, its characterized in that includes tool base (10) and tool upper cover (20), have working face (101) on tool base (10), be provided with gas circulation chamber (1011) on working face (101), be provided with on tool base (10) all with gas circulation chamber (1011) inlet port (102) and venthole (103) that communicate, inlet port (102) are used for with the gas outlet end intercommunication of gas permeability tester, venthole (103) be used for with the gas inlet end intercommunication of gas permeability tester for with one end seals aluminum foil (301) that the open sample (30) that awaits measuring of the other end is connected on working face (101), and the inner chamber of sample (30) with gas circulation chamber (1011) intercommunication, tool upper cover (20) laminating is in on working face (101) and compress tightly aluminum foil (301).
2. The air tightness test auxiliary jig according to claim 1, wherein the working surface (101) is further provided with an annular air flow groove (1012), the annular air flow groove (1012) is located at the periphery of the air flow cavity (1011), the jig base (10) is provided with an air vent (104) and an air vent (105) which are both communicated with the annular air flow groove (1012), one end of the air vent (104) communicated with the annular air flow groove (1012) is an air flow input end, one end of the air vent (105) communicated with the annular air flow groove (1012) is an air flow output end, and the air flow input end and the air flow output end are arranged in a relatively symmetrical mode.
3. The air tightness test auxiliary jig according to claim 2, wherein the annular air flow groove (1012) is coaxially arranged with the air flow chamber (1011).
4. The air tightness test auxiliary jig according to claim 1, wherein the air inlet hole (102) and the air outlet hole (103) are the same in size.
5. The air tightness test auxiliary jig according to claim 1, wherein the surface of the jig upper cover (20) attached to the working surface (101) is the same as the working surface (101).
6. The air tightness test auxiliary jig according to claim 1, wherein the jig upper cover (20) is attached to the working surface (101) by locking with the jig base (10) by a locking member.
7. The air tightness test auxiliary jig according to claim 1, wherein a cavity for keeping away the sample (30) is provided on the jig upper cover (20).
8. The auxiliary jig for testing air tightness according to claim 7, wherein the avoidance chamber is arranged coaxially with the air circulation chamber (1011).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222415186.XU CN219777425U (en) | 2022-09-09 | 2022-09-09 | Auxiliary jig for air tightness test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222415186.XU CN219777425U (en) | 2022-09-09 | 2022-09-09 | Auxiliary jig for air tightness test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219777425U true CN219777425U (en) | 2023-09-29 |
Family
ID=88106901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222415186.XU Active CN219777425U (en) | 2022-09-09 | 2022-09-09 | Auxiliary jig for air tightness test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219777425U (en) |
-
2022
- 2022-09-09 CN CN202222415186.XU patent/CN219777425U/en active Active
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| GR01 | Patent grant |