CN113375872A - Rear cover air tightness detection device and use method thereof - Google Patents
Rear cover air tightness detection device and use method thereof Download PDFInfo
- Publication number
- CN113375872A CN113375872A CN202110604932.7A CN202110604932A CN113375872A CN 113375872 A CN113375872 A CN 113375872A CN 202110604932 A CN202110604932 A CN 202110604932A CN 113375872 A CN113375872 A CN 113375872A
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- China
- Prior art keywords
- rear cover
- cover
- air
- cover plate
- plate
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- 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.)
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 11
- 238000003466 welding Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 3
- 229910000737 Duralumin Inorganic materials 0.000 claims 1
- 239000007789 gas Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The rear cover air tightness detection device is characterized by comprising a cover plate, an air inlet pipe and a cable jack shell; the circumference of the cover plate is provided with a connecting hole for connecting with a positioning hole on the rear cover; a central hole is formed in the cover plate, and one end of the air inlet pipe is connected with the central hole of the cover plate; the cable jack shell is used for sealing the cable hole of the rear cover. When the rear cover air tightness detection device provided by the invention is used for detecting the air tightness of the rear cover, the device is only required to be arranged on the rear cover, and then is wholly immersed in water, compressed air is introduced, and the air pressure of the compressed air is adjusted to a set value; observing whether bubbles appear at the welding seam of the rear cover or not, and determining the gas leakage condition within 10 min; if no bubble appears at the welding seam of the rear cover or the air leakage does not exceed 0.1 atmospheric pressure in 10min, the air tightness of the rear cover is qualified.
Description
Technical Field
The invention relates to the technical field of air tightness detection, in particular to a rear cover air tightness detection device and a using method thereof.
Background
The back cover in the structure shown in fig. 1 is an important component of a radio controller of a certain type, is used for placing the radio controller after being combined with the front cover, is filled with nitrogen, mainly plays a protective role in an internal radio controller product, and is required to be shockproof, waterproof and air-tight.
Therefore, each component of the rear cover is welded by argon arc welding, and in order to ensure the sealing performance of the rear cover, 100% airtightness detection is carried out on a welding line after the welding is finished. The commonly adopted air tightness detection mode at present is to inject compressed air into the mouth part of the rear cover after sealing the mouth part of the rear cover and sink waterIn the process
And observing the part under the atmospheric pressure, and ensuring that the air leakage does not exceed 0.1 atmospheric pressure within 10min, so that the air tightness of the part is qualified.
Because there is not the device that is used for the back lid to carry out the gas tightness detection specially among the prior art, lead to back lid gas tightness detection operation difficulty.
Disclosure of Invention
The invention mainly aims to provide a rear cover air tightness detection device and a using method thereof, and aims to solve the technical problems.
In order to achieve the purpose, the invention provides a rear cover air tightness detection device which is characterized by comprising a cover plate, an air inlet pipe and a cable jack shell; connecting holes are formed in the circumference of the cover plate and are used for being connected with positioning holes in the rear cover, and the number and the position distribution of the connecting holes are matched with the positioning holes in the rear cover; a central hole is formed in the cover plate, and one end of the air inlet pipe is connected with the central hole of the cover plate; the cable jack shell is used for sealing the cable hole of the rear cover.
Preferably, the air inlet pipe is connected with the central hole through an air inlet nozzle nut.
Preferably, a sealing gasket is arranged between the air inlet nozzle nut and the cover plate.
Preferably, the air inlet nozzle nut is made of hard aluminum materials.
Further, the rear cover air tightness detection device further comprises a base plate, the properties of the base plate are consistent with those of the cover plate, and the base plate is arranged on the surface of the cover plate; the backing plate is made of rubber.
Preferably, the thickness of the backing plate is 8 mm-10 mm.
Preferably, the cover plate and the cable jack shell are both made of hard aluminum materials, and the thickness of the cover plate is 22-25 mm.
The invention also provides a using method of the rear cover air tightness detection device, which comprises the following steps:
s1: mounting the cover plate and the base plate on a rear cover to be detected and connecting and fixing the cover plate and the base plate by using screws; installing a cable jack shell on a cable hole of the rear cover to seal the cable hole; connecting an air inlet pipe to the cover plate;
s2: sinking the rear cover assembled in the step S1 into clear water, introducing compressed air, and adjusting the air pressure of the compressed air to a set value; observing whether bubbles appear at the welding seam of the rear cover or not, and determining the gas leakage condition within 10 min; if no bubble appears at the welding seam of the rear cover or the air leakage does not exceed 0.1 atmospheric pressure in 10min, the air tightness of the rear cover is qualified.
S3: and taking the rear cover out of the water, removing the cover plate and the cable jack shell, drying the rear cover by using compressed air, and completing the air tightness detection of the rear cover.
Preferably, the set value of the compressed air pressure in the step S2 is
The invention achieves the following beneficial effects:
(1) when the rear cover air tightness detection device provided by the invention is used for detecting the air tightness of the rear cover, the device is only required to be arranged on the rear cover, and then is wholly immersed in water, compressed air is introduced, and the air pressure of the compressed air is adjusted to a set value; observing whether bubbles appear at the welding seam of the rear cover or not, and determining the gas leakage condition within 10 min; if no bubble appears at the welding seam of the rear cover or the air leakage does not exceed 0.1 atmospheric pressure in 10min, the air tightness of the rear cover is qualified.
(2) The whole air tightness detection process can be completed only by one person, so that the labor is saved; the method is simple and convenient to operate, the detection of the rear cover can be completed within 10-15 min, the operation time is short, and the air tightness detection efficiency is greatly improved.
(3) Set up the backing plate structure, the backing plate is rubber, has both guaranteed the back and has covered the part not by the fish tail, has guaranteed sealed effect again, has avoided detection device and back to cover the part and is connected the repeated operation to the simplified operation.
(4) The suction nozzle nut, the cover plate and the cable jack shell are all made of hard aluminum materials, so that the weight of the whole rear cover air tightness detection device can be effectively reduced, the operation of workers is facilitated, and the labor intensity of the workers is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a cable jack housing and a rear cover after being assembled in a rear cover airtightness detection apparatus according to the present invention;
FIG. 2 is a schematic structural view of a rear cover air-tightness detecting device provided by the present invention (cable jack housing is not shown in the figure);
FIG. 3 is a schematic structural view of a rear cover air-tightness detecting device according to the present invention after being assembled with parts of the rear cover;
the reference numbers illustrate: 10-rear cover; 11-a positioning hole; 20-cover plate; 21-a connection hole; 30-cable jack housing; 40-an air inlet pipe; 41-air inlet nozzle nut; 42-a gasket; 50-backing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
A rear cover air tightness detection device is characterized by comprising a cover plate 20, an air inlet pipe 40 and a cable jack shell 30; connecting holes 21 are formed in the circumference of the cover plate 20 and used for being connected with the positioning holes 11 in the rear cover 10, and the number and the position distribution of the connecting holes 21 are matched with those of the positioning holes 11 in the rear cover 10; a central hole is formed in the cover plate 20, and one end of the air inlet pipe 40 is connected with the central hole of the cover plate 20; the cable jack housing 30 is used to cover a cable hole of the rear cover 10.
In this embodiment, the air inlet tube 40 is connected to the central bore by a nozzle nut 41.
In the present embodiment, a gasket 42 is provided between the nozzle nut 41 and the cover plate 20.
In this embodiment, the nozzle nut 41 is made of hard aluminum.
In this embodiment, the air tightness detecting device of the rear cover 10 further includes a pad 50, the shape of the pad 50 is consistent with the shape of the cover plate 20, and the pad 50 is disposed on the surface of the cover plate 20; the backing plate 50 is made of rubber.
In this embodiment, the thickness of the pad 50 is 8mm to 10 mm.
In this embodiment, the cover plate 20 and the cable jack housing 30 are both made of hard aluminum material, and the thickness of the cover plate 20 is 22mm to 25 mm.
In this embodiment, a preferred embodiment of the present invention further provides a method for using the device for detecting airtightness of the rear cover 10, including the following steps:
s1: the cover plate 20 and the backing plate 50 are mounted on the rear cover 10 to be detected and are fixedly connected through screws; installing the cable jack shell 30 on the cable hole of the rear cover 10 to seal the cable hole; connecting an intake duct 40 to the cover plate 20;
s2: sinking the rear cover 10 assembled in the step S1 into clear water, introducing compressed air, and adjusting the air pressure of the compressed air to a set value; observing whether bubbles are blown up at the welding seam of the rear cover 10 or not, and measuring the gas leakage condition within 10 min; if no bubble appears at the welding seam of the rear cover 10 or the air leakage does not exceed 0.1 atmospheric pressure in 10min, the air tightness of the rear cover 10 is qualified.
S3: and taking the rear cover 10 out of the water, removing the cover plate 20 and the cable jack shell 30, drying the rear cover 10 by using compressed air, and finishing the air tightness detection of the rear cover 10.
In this embodiment, the set value of the compressed air pressure in step S2 is
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The rear cover air tightness detection device is characterized by comprising a cover plate, an air inlet pipe and a cable jack shell;
the circumference of the cover plate is provided with a connecting hole for connecting with a positioning hole on the rear cover;
a central hole is formed in the cover plate, and one end of the air inlet pipe is connected with the central hole of the cover plate;
the cable jack shell is used for sealing the cable hole of the rear cover.
2. The rear cover airtightness detection apparatus according to claim 1, wherein the intake pipe is connected to the center hole through an intake nozzle nut.
3. The rear cover airtightness detection apparatus according to claim 2, wherein a seal is provided between the intake nozzle nut and the cover plate.
4. The rear cover airtightness detection apparatus according to claim 2, wherein the intake nozzle nut is made of a hard aluminum material.
5. The rear cover airtightness detection apparatus according to claim 1, further comprising a pad having a shape conforming to that of the cover sheet, the pad being provided on a surface of the cover sheet.
6. The device for detecting the airtightness of the rear cover according to claim 5, wherein the material of the backing plate is rubber.
7. The rear cover airtightness detection apparatus according to claim 5, wherein the thickness of said gasket is 8mm to 10 mm.
8. The device for detecting the airtightness of the rear cover according to claim 1, wherein the cover plate and the cable jack housing are made of a duralumin material, and the thickness of the cover plate is 22mm to 25 mm.
9. A method for using the rear cover airtightness detection apparatus according to any one of claims 1 to 8, comprising the steps of:
s1: mounting the cover plate and the base plate on a rear cover to be detected and connecting and fixing the cover plate and the base plate by using screws; installing a cable jack shell on a cable hole of the rear cover to seal the cable hole; connecting an air inlet pipe to the cover plate;
s2: sinking the rear cover assembled in the step S1 into clear water, introducing compressed air, and adjusting the air pressure of the compressed air to a set value; observing whether bubbles appear at the welding seam of the rear cover or not, and determining the gas leakage condition within 10 min; if no bubble appears at the welding seam of the rear cover or the air leakage does not exceed 0.1 atmospheric pressure in 10min, the air tightness of the rear cover is qualified.
S3: and taking the rear cover out of the water, removing the cover plate and the cable jack shell, drying the rear cover by using compressed air, and completing the air tightness detection of the rear cover.
10. The method of using a rear cover airtightness detection apparatus according to claim 9, wherein the set value of the compressed air pressure in the step S2 is set to be the value
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110604932.7A CN113375872A (en) | 2021-05-31 | 2021-05-31 | Rear cover air tightness detection device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110604932.7A CN113375872A (en) | 2021-05-31 | 2021-05-31 | Rear cover air tightness detection device and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113375872A true CN113375872A (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110604932.7A Pending CN113375872A (en) | 2021-05-31 | 2021-05-31 | Rear cover air tightness detection device and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113375872A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070475A (en) * | 1991-09-13 | 1993-03-31 | 旭光学工业株式会社 | The apparatus and method of the watertightness of test shell |
| CN101644620A (en) * | 2009-08-28 | 2010-02-10 | 无锡海源重工股份有限公司 | Module small- channel hydraulic pressure expansion plug device |
| DE102011106165A1 (en) * | 2011-06-30 | 2013-01-03 | Sartorius Stedim Biotech Gmbh | Bioreactor container test method and apparatus and use |
| CN206772529U (en) * | 2017-04-12 | 2017-12-19 | 陕西三毅有岩材料科技有限公司 | The detection means that a kind of crucible for crystal growth is leaked hunting |
| CN207036360U (en) * | 2017-06-08 | 2018-02-23 | 新界泵业集团股份有限公司 | There is water gas testing frock |
| CN209342316U (en) * | 2019-03-19 | 2019-09-03 | 湖北车桥有限公司 | A kind of axle housing performing leak test lid |
| CN209470816U (en) * | 2018-11-28 | 2019-10-08 | 浙江万向精工有限公司 | A kind of hub bearing sealing ring air-tightness detection device |
| CN210863066U (en) * | 2019-07-25 | 2020-06-26 | 浙江万向精工有限公司 | Hub bearing unit end cover air tightness test device |
| CN212539552U (en) * | 2020-07-27 | 2021-02-12 | 江西远东电池有限公司 | Calibration tool of airtight tester for power battery |
| CN112393855A (en) * | 2020-11-11 | 2021-02-23 | 贵州航天电子科技有限公司 | Radiator weld joint airtightness detection tool and detection method |
| CN213274719U (en) * | 2020-11-06 | 2021-05-25 | 泰安市泰和电力设备有限公司 | Cylinder body sealing test device |
-
2021
- 2021-05-31 CN CN202110604932.7A patent/CN113375872A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070475A (en) * | 1991-09-13 | 1993-03-31 | 旭光学工业株式会社 | The apparatus and method of the watertightness of test shell |
| CN101644620A (en) * | 2009-08-28 | 2010-02-10 | 无锡海源重工股份有限公司 | Module small- channel hydraulic pressure expansion plug device |
| DE102011106165A1 (en) * | 2011-06-30 | 2013-01-03 | Sartorius Stedim Biotech Gmbh | Bioreactor container test method and apparatus and use |
| CN206772529U (en) * | 2017-04-12 | 2017-12-19 | 陕西三毅有岩材料科技有限公司 | The detection means that a kind of crucible for crystal growth is leaked hunting |
| CN207036360U (en) * | 2017-06-08 | 2018-02-23 | 新界泵业集团股份有限公司 | There is water gas testing frock |
| CN209470816U (en) * | 2018-11-28 | 2019-10-08 | 浙江万向精工有限公司 | A kind of hub bearing sealing ring air-tightness detection device |
| CN209342316U (en) * | 2019-03-19 | 2019-09-03 | 湖北车桥有限公司 | A kind of axle housing performing leak test lid |
| CN210863066U (en) * | 2019-07-25 | 2020-06-26 | 浙江万向精工有限公司 | Hub bearing unit end cover air tightness test device |
| CN212539552U (en) * | 2020-07-27 | 2021-02-12 | 江西远东电池有限公司 | Calibration tool of airtight tester for power battery |
| CN213274719U (en) * | 2020-11-06 | 2021-05-25 | 泰安市泰和电力设备有限公司 | Cylinder body sealing test device |
| CN112393855A (en) * | 2020-11-11 | 2021-02-23 | 贵州航天电子科技有限公司 | Radiator weld joint airtightness detection tool and detection method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210910 |
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| RJ01 | Rejection of invention patent application after publication |