CN109580125B - Accurate detection device and method for leakage rate of airtight zipper - Google Patents
Accurate detection device and method for leakage rate of airtight zipper Download PDFInfo
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- CN109580125B CN109580125B CN201811620958.5A CN201811620958A CN109580125B CN 109580125 B CN109580125 B CN 109580125B CN 201811620958 A CN201811620958 A CN 201811620958A CN 109580125 B CN109580125 B CN 109580125B
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G01M3/26—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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides an accurate detection device for leakage rate of an airtight zipper. The accurate detection device for the leakage rate of the airtight zipper comprises an airtight zipper mounting platform, a lifting measurement platform and a pressure supply system, wherein the airtight zipper mounting platform comprises a bracket I and an airtight zipper mounting device; a high-precision scale is arranged on the telescopic movement end face of the lifting measurement platform; the pressure supply system is arranged on one side of the airtight zipper installation platform and supplies source liquid to the airtight zipper installation device. Compared with the prior art, the airtight zipper mounting device in the accurate detection device for the leak rate of the airtight zipper provided by the invention adopts the clamping plate type to mount the airtight zipper, so that a reliable airtight cavity can be formed, independent leak tightness detection is not required, the air can only leak through an airtight zipper sample, and the measurement accuracy is ensured. The invention also provides a method for accurately detecting the leakage rate of the airtight zipper.
Description
Technical Field
The invention relates to the technical field of aerostat detection, in particular to an accurate detection device and method for leakage rate of an airtight zipper.
Background
The airtight zipper can be used for isolating liquid, air, water vapor, dust and light, has the advantages of convenient operation, high air tightness and the like, and is widely applied to the field of aerostats at present. If the fairing on the tethered balloon is provided with an airtight zipper, the fairing forms a temporary and reusable sealing structure, and meanwhile, the installation, the overhaul and the maintenance of the internal task load and the integral replacement of the fairing are convenient.
As is well known, for an aerostat, the leakage rate of the capsule body is an important index, and the excessive loss of the air lift in the capsule body can lead to the system residence altitude, the carrying capacity and the residence time not reaching the operational index requirements, and can also lead to the great rise of the use cost (including the air lift consumption, the personnel maintenance management, the attendance rate and the like) of the aerostat. Therefore, accurate measurement of leak rate of the airtight zipper on the aerostat is an indispensable work.
The current leakage rate of the airtight zipper used by the aerostat is detected by mainly manufacturing an inflatable air cylinder according to the size of the airtight zipper, welding the airtight zipper on the air cylinder, and arranging an inflation interface and a pressure measuring interface on the air cylinder, as shown in figure 1, wherein the air cylinder comprises a 1 ' -inflation air cylinder, a 2 ' -airtight zipper, a 3 ' -inflation interface, a 4 ' -pressure measuring interface, a 5 ' -pressure gauge and an A-high-pressure air source. When in detection, the inflator is inflated, the air leakage condition of the whole inflator and the airtight zipper is qualitatively detected by brushing soap bubbles, and if the inflator has larger leakage points, the bag body material is used for repair welding. After the leakage point of the bag body material is eliminated, the inflator is inflated to the specified pressure, the pressure gauge 5' detects the change condition of the pressure in the inflator, and the leakage rate of the airtight zipper is converted.
The detection mode has the following defects:
(1) The test method has higher requirements on the test environment, particularly has larger influence on pressure caused by the change of the ambient temperature, and causes inaccurate test result test;
(2) The inflatable inflator is made of a bag body material, and a certain air leakage phenomenon can exist at the bag body material and a welding joint, although the leakage is detected by brushing soap bubbles, only leakage points with obvious leakage rate can be detected, and the small leakage points at the bag body and the welding joint of the bag body are difficult to detect;
(3) The inflation cylinder used for developing the leakage rate test is a disposable tool, so that material waste is caused.
Disclosure of Invention
The invention aims to provide a device and a method for accurately detecting the leakage rate of an airtight zipper, which solve the problem that the conventional detection method is greatly influenced by test environments, test inflator tool materials and structural forms, so that the leakage rate of the airtight zipper is difficult to measure reliably, and realize high-precision detection of the leakage rate of the airtight zipper of an aerostat.
The invention provides an accurate detection device for leakage rate of an airtight zipper, which comprises an airtight zipper mounting platform, a lifting measurement platform and a pressure supply system, wherein the airtight zipper mounting platform comprises a bracket I and an airtight zipper mounting device arranged above the bracket I; the lifting measurement platform is arranged in a telescopic way from the bracket to a direction approaching to or far from the airtight zipper mounting device, and a high-precision scale is arranged on the telescopic movement end face of the lifting measurement platform; the pressure supply system is arranged on one side of the airtight zipper installation platform and provides source liquid for detecting leakage rate for the airtight zipper installation device.
The air-tight zipper mounting device is placed on the bracket one, which eliminates zero drift error of the scale as compared to placing it directly on a high-precision scale.
The mass increment of the difficult volatile liquid is obtained through weighing by a high-precision scale so as to obtain the leakage quantity of air, and the measurement precision is improved from the measurement method.
Preferably, the airtight zipper mounting device comprises a lower pressing plate, an upper pressing plate covered on the lower pressing plate and a clamping bolt connected between the lower pressing plate and the upper pressing plate, wherein a cavity is arranged in the middle of the lower pressing plate along the length direction of the lower pressing plate, an injection joint communicated with the cavity is arranged on the lower pressing plate, and the pressure supply system is communicated with the injection joint; and a through groove corresponding to the cavity is formed in the middle of the upper pressing plate.
Preferably, the airtight zipper mounting device further comprises a sealing ring, wherein the sealing ring is arranged on the outer side of the accommodating cavity in a surrounding manner and is embedded in the lower pressing plate;
the source liquid is a difficult volatile liquid; the injection joint is arranged in the middle of the lower end of the lower pressing plate; the difficult volatile liquid flows into the cavity from the bottommost end of the platform, so that the air in the cavity forms a closed state to simulate the actual working condition, a compressed air source is omitted, more stable pressure is created, and the device is convenient, safe and energy-saving to apply.
Preferably, the airtight zipper mounting device further comprises a handle, and the handle is arranged on the upper pressing plate and is arranged close to the middle.
Preferably, the airtight zipper mounting platform further comprises a pressure gauge, and the pressure gauge is arranged at one end of the airtight zipper mounting device and is communicated with the accommodating cavity.
Preferably, the pressure supply system comprises a second bracket, a liquid tank arranged above the second bracket, a liquid discharge switch arranged at the lower end of one side of the liquid tank, and a hose connected between the liquid discharge switch and the injection joint, wherein the source liquid is arranged in the liquid tank. The liquid discharging switch can control the on/off and the flow rate of liquid in the liquid tank, and the hose provides a circulating pipeline for source liquid.
Preferably, the second bracket has a height higher than the first bracket. The second bracket is used for placing the liquid box, and the height of the second bracket can be adjusted to set the inlet pressure.
Preferably, the lifting measurement platform further comprises a lifting device, wherein the lifting device is arranged in the first bracket, the lifting of the moving end of the lifting measurement platform is regulated through a handle, and the high-precision scale is arranged on the top surface of the moving end. The handle of the lifting device is rotated to enable the top plate and the high-precision scale to move up and down, so that the gap weighing becomes convenient.
The invention also provides a method for accurately detecting the leakage rate of the airtight zipper, which comprises the following steps:
step one, providing an airtight zipper mounting platform, a lifting measurement platform and a pressure supply system, and constructing a test system;
step two, the lifting device is lowered through the handle, and the position of the high-precision scale is lowered, so that the high-precision scale is separated from the airtight zipper mounting device;
step three, closing the liquid switch, and injecting the difficult-to-volatilize liquid into the liquid tank;
installing an airtight zipper, arranging the airtight zipper between the upper pressing plate and the lower pressing plate, and fixing the airtight zipper and the accommodating cavity through a clamping bolt, wherein the airtight zipper and the accommodating cavity form a closed cavity;
step five, a liquid discharge switch on the liquid tank is turned on, the difficult volatile liquid enters the closed cavity from the hose, and the difficult volatile liquid is stabilized at a pressure value by checking the pressure gauge;
step six, lifting the lifting device through a handle, attaching the high-precision scale to the airtight zipper mounting device, measuring the total mass m1 of the airtight zipper mounting device, and recording;
step seven, starting a lifting device, and descending the high-precision scale to be separated from the airtight zipper mounting device;
step eight, repeating the step six after the specified time, measuring and recording the total mass m2 of the airtight sealing zipper installation device;
step nine, calculating a mass difference value of the difficult volatile liquid entering the airtight cavity of the airtight zipper installation device from m1 and m2, and converting the mass difference value into a leaked air volume, namely the leakage rate of the airtight zipper;
and step ten, finishing detection.
Preferably, before detection, the accurate detection device for the leakage rate of the airtight zipper is placed in an indoor environment with the temperature change within +/-1 ℃; in the third step, the volume of the nonvolatile liquid injected into the liquid box is ensured to be not less than 50% of the volume of the closed cavity.
Compared with the prior art, the device for precisely detecting the leak rate of the airtight zipper provided by the invention has the advantages that the airtight zipper is mounted by adopting the clamping plate, a reliable airtight cavity can be formed, the airtight detection is not required to be independently carried out, the air can only leak through an airtight zipper sample, and the measurement accuracy is ensured. The invention also provides a precise detection method for the leakage rate of the airtight zipper, which utilizes the difficult volatile liquid to form a pressure difference to simulate the actual working condition, omits a compressed air source, builds more stable pressure and ensures the measurement accuracy from the measurement method.
Drawings
FIG. 1 is a schematic diagram of a conventional leak rate detection device for an airtight slide fastener;
FIG. 2 is a schematic diagram of a device for precisely detecting the leak rate of an airtight zipper;
FIG. 3 is a schematic view of the airtight slide fastener installation apparatus of FIG. 1;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
FIG. 5 is a flow chart of a method for accurately detecting the leakage rate of the airtight zipper.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.
As shown in fig. 2, the device for accurately detecting the leakage rate of the airtight zipper provided by the embodiment comprises an airtight zipper mounting platform, a lifting measurement platform and a pressure supply system.
As shown in fig. 2 and 3, the airtight zipper mounting platform comprises a bracket 1, an airtight zipper mounting device 4 and a pressure gauge 14.
The airtight zipper installation device 4 is of a clamping plate type structure and is arranged above the first bracket 1. The airtight zipper installation device 4 comprises an upper pressing plate 10, a clamping bolt 11, a lifting handle 12, a lower pressing plate 13, an injection joint 15 and a sealing ring 18.
As shown in fig. 4, a cavity 16 is provided in the middle of the lower platen 10 along the length direction thereof. As shown in fig. 3, the injection joint 15 communicating with the cavity is disposed in the middle of the lower end of the lower pressing plate 10.
As shown in fig. 4, the airtight zipper 17 is disposed above the cavity 16 of the lower platen 10, the upper platen 10 is covered on the lower platen 13, and is fixed by the clamping bolt 11. The sealing ring 18 is embedded on the lower pressing plate 13, and is disposed around the outer side of the accommodating cavity 16. The sealing ring 18 is abutted against the lower side surface of the airtight zipper 17. Thus, the airtight zipper 17 and the cavity 16 form a closed cavity. The middle part of the upper platen 10 is provided with a through groove (not shown) corresponding to the position of the accommodating cavity 16, so that the state of the airtight zipper 17 can be conveniently checked and operated.
As shown in fig. 2, the pressure supply system includes a hose 5, a tapping switch 6, a liquid tank 7, source liquid 8 and a second bracket 9. The height of the second bracket 9 is higher than that of the first bracket 1, and the liquid tank 7 is arranged at the upper end of the second bracket 9. The second bracket 9 is used for placing the liquid tank 7, and can also set the pressure of the inlet liquid by adjusting the height of the second bracket. The liquid discharge switch 6 is arranged at the lower end of one side of the liquid tank 7, the hose 5 is connected between the liquid discharge switch 6 and the injection joint 15, and the source liquid 8 is arranged in the liquid tank 7.
As shown in fig. 2 and 4, the source liquid 8 flows into the cavity 16 from the injection joint, and the source liquid 8 is a difficult volatile liquid. The sealing ring 18 ensures that the sealed air does not leak from a gap between the airtight zipper sample and the pressing plate, and meanwhile, the sealing liquid is formed by adopting the difficult-to-volatilize liquid, so that the air can only leak through the airtight zipper sample, and the measurement accuracy is ensured.
As shown in fig. 3, the handle 12 is disposed near the middle of the upper platen 10. The number of handles 12 is two, and the upper pressing plate 10 is provided with two sides in the width direction, so that the operation such as installation and carrying is convenient. The pressure gauge 14 is arranged at one end of the airtight zipper installation device 4 and is communicated with the accommodating cavity 16. The pressure gauge 14 is used for detecting the pressure in the airtight cavity of the airtight zipper installation device.
As shown in fig. 2, the lifting measurement platform comprises a lifting device 2 and a high-precision scale 3. The lifting device 2 is arranged in the first bracket 1, the lifting of the moving end of the lifting device is regulated by a handle (not numbered), and the high-precision scale 3 is arranged on the top surface of the moving end.
As shown in fig. 1 to 5, the method for accurately detecting the leakage rate of the airtight zipper provided by the invention comprises the following steps:
step S1, providing an airtight zipper mounting platform, a lifting measurement platform and a pressure supply system, constructing a test system, and placing the test system in an indoor environment with temperature change within +/-1 ℃.
And S2, lowering the lifting device 2 and lowering the position of the high-precision scale 3 through a handle so as to separate the high-precision scale from the airtight zipper mounting device 4.
And S3, closing the liquid switch 6, and injecting the nonvolatile liquid, namely the source liquid 8, into the liquid tank 7.
And S4, installing an airtight zipper 17, arranging the airtight zipper 17 between the upper pressing plate 10 and the lower pressing plate 13, and fixing the airtight zipper 17 and the accommodating cavity 16 through the clamping bolts 11 to form a closed cavity. The nonvolatile liquid injected into the liquid box in the step S3 ensures that the liquid volume is not less than 50% of the volume of the closed cavity.
And S5, opening a liquid discharge switch 6 on the liquid tank 7, and enabling the difficult volatile liquid to enter the closed cavity from the hose and be stabilized at a certain pressure value by checking the pressure gauge 14.
And S6, lifting the lifting device 2 through a handle, attaching the high-precision scale 3 to the airtight zipper mounting device 4, and measuring and recording the total mass m1 of the airtight zipper mounting device 4.
And S7, starting the lifting device 2, and lowering the high-precision scale 3 to be separated from the airtight zipper mounting device 4.
And S8, repeating the step S6 after the specified time, and measuring and recording the total mass m2 of the airtight sealing zipper installation device 4.
S9, calculating a mass difference value of the difficult volatile liquid entering the airtight cavity of the airtight zipper installation device from m1 and m2, and converting the mass difference value into a leaked air volume, namely the leakage rate of the airtight zipper;
step S10, detection is completed.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (7)
1. The accurate detection device for the leakage rate of the airtight zipper is characterized by comprising an airtight zipper mounting platform, a lifting measurement platform and a pressure supply system, wherein the airtight zipper mounting platform comprises a bracket I and an airtight zipper mounting device arranged above the bracket I; the lifting measurement platform is arranged in a telescopic way from the bracket to a direction approaching to or far from the airtight zipper mounting device, and a high-precision scale is arranged on the telescopic movement end face of the lifting measurement platform; the pressure supply system is arranged on one side of the airtight zipper installation platform and provides source liquid for detecting leakage rate for the airtight zipper installation device; the air-tight zipper mounting device comprises a lower pressing plate, an upper pressing plate covered on the lower pressing plate and a clamping bolt connected between the lower pressing plate and the upper pressing plate, wherein a cavity is formed in the middle of the lower pressing plate along the length direction of the lower pressing plate, an injection joint communicated with the cavity is arranged on the lower pressing plate, and the pressure supply system is communicated with the injection joint; a through groove corresponding to the cavity is formed in the middle of the upper pressing plate; the air-tight zipper mounting device also comprises a handle, wherein the handle is arranged on the upper pressing plate and is arranged close to the middle; the airtight zipper mounting platform further comprises a pressure gauge, and the pressure gauge is arranged at one end of the airtight zipper mounting device and is communicated with the containing cavity.
2. The precise detection device for the leak rate of the airtight zipper according to claim 1, wherein the airtight zipper installation device further comprises a sealing ring which is arranged on the outer side of the containing cavity in a surrounding manner and is embedded in the lower pressing plate; the injection joint is arranged in the middle of the lower end of the lower pressing plate.
3. The accurate detection device for the leak rate of the airtight zipper according to claim 1 or 2, wherein the pressure supply system comprises a second bracket, a liquid tank arranged above the second bracket, a liquid discharge switch arranged at the lower end of one side of the liquid tank, and a hose connected between the liquid discharge switch and an injection joint, wherein the source liquid is arranged in the liquid tank; the source liquid is a difficult volatile liquid.
4. The precise detection device for the leak rate of the airtight seal zipper of claim 3, wherein the second bracket has a height higher than the first bracket.
5. The precise detection device for the leak rate of the airtight zipper according to claim 1 or 2, wherein the lifting measurement platform further comprises a lifting device which is arranged in the first bracket, the lifting of the moving end of the lifting measurement platform is regulated by a handle, and the high-precision scale is arranged on the top surface of the moving end.
6. A method for precisely detecting the leak rate of an airtight zipper, which is carried out by using the precisely detecting device for the leak rate of the airtight zipper according to any one of claims 1 to 5, and is characterized by comprising the following steps:
step one, providing an airtight zipper mounting platform, a lifting measurement platform and a pressure supply system, and constructing a test system;
step two, the lifting device is lowered through the handle, and the position of the high-precision scale is lowered, so that the high-precision scale is separated from the airtight zipper mounting device;
step three, closing the liquid switch, and injecting the difficult-to-volatilize liquid into the liquid tank;
installing an airtight zipper, arranging the airtight zipper between the upper pressing plate and the lower pressing plate, and fixing the airtight zipper and the accommodating cavity through a clamping bolt, wherein the airtight zipper and the accommodating cavity form a closed cavity;
step five, a liquid discharge switch on the liquid tank is turned on, the difficult volatile liquid enters the closed cavity from the hose, and the difficult volatile liquid is stabilized at a pressure value by checking the pressure gauge;
step six, lifting the lifting device through a handle, attaching the high-precision scale to the airtight zipper mounting device, measuring the total mass m1 of the airtight zipper mounting device, and recording;
step seven, starting a lifting device, and descending the high-precision scale to be separated from the airtight zipper mounting device;
step eight, repeating the step six after the specified time, measuring and recording the total mass m2 of the airtight sealing zipper installation device;
step nine, calculating a mass difference value of the difficult volatile liquid entering the airtight cavity of the airtight zipper installation device from m1 and m2, and converting the mass difference value into a leaked air volume, namely the leakage rate of the airtight zipper;
and step ten, finishing detection.
7. The method for accurately detecting the leak rate of the airtight zipper according to claim 6, wherein the device for accurately detecting the leak rate of the airtight zipper is placed in an indoor environment with a temperature change within + -1 ℃; in the third step, the volume of the nonvolatile liquid injected into the liquid box is ensured to be not less than 50% of the volume of the closed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620958.5A CN109580125B (en) | 2018-12-28 | 2018-12-28 | Accurate detection device and method for leakage rate of airtight zipper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620958.5A CN109580125B (en) | 2018-12-28 | 2018-12-28 | Accurate detection device and method for leakage rate of airtight zipper |
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| Publication Number | Publication Date |
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| CN109580125A CN109580125A (en) | 2019-04-05 |
| CN109580125B true CN109580125B (en) | 2024-01-30 |
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Families Citing this family (1)
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| CN112729707B (en) * | 2021-01-19 | 2021-10-08 | 华腾实业（深圳）股份有限公司 | Airtightness detection equipment for production of clothing zippers |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009042041A (en) * | 2007-08-08 | 2009-02-26 | Iizuka Tekkosho:Kk | Leakage test apparatus |
| CN101793585A (en) * | 2010-04-04 | 2010-08-04 | 苏州宝骅机械技术有限公司 | Device and method for detecting sealing property of sealing element |
| CN104122049A (en) * | 2014-08-06 | 2014-10-29 | 苏州宝骅机械技术有限公司 | High-pressure gas tightness test method |
| CN204241177U (en) * | 2014-12-16 | 2015-04-01 | 中国兵器工业集团第五三研究所 | A kind of seal air-tightness pick-up unit |
| KR20160052217A (en) * | 2014-11-04 | 2016-05-12 | (주)동희 | Leak testing devices |
| JP2017125773A (en) * | 2016-01-14 | 2017-07-20 | 株式会社デンソー | Device and method for airtight leakage inspection |
| CN107373920A (en) * | 2017-07-18 | 2017-11-24 | 浙江伟星实业发展股份有限公司 | A kind of online error detection labelling apparatus of slide fastener |
| CN207147721U (en) * | 2017-09-21 | 2018-03-27 | 浙江铭品海工智能科技有限公司 | Watertight zip fastener sealing test device |
| CN108731883A (en) * | 2018-07-17 | 2018-11-02 | 泉州市信恒户外用品有限公司 | A kind of slide fastener test device for air tightness |
| CN209166757U (en) * | 2018-12-28 | 2019-07-26 | 湖南航天远望科技有限公司 | A kind of accurate detection device of hermetic seal zipper slip |
| CN112729707A (en) * | 2021-01-19 | 2021-04-30 | 华腾实业（深圳）股份有限公司 | Airtightness detection equipment for production of clothing zippers |
-
2018
- 2018-12-28 CN CN201811620958.5A patent/CN109580125B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009042041A (en) * | 2007-08-08 | 2009-02-26 | Iizuka Tekkosho:Kk | Leakage test apparatus |
| CN101793585A (en) * | 2010-04-04 | 2010-08-04 | 苏州宝骅机械技术有限公司 | Device and method for detecting sealing property of sealing element |
| CN104122049A (en) * | 2014-08-06 | 2014-10-29 | 苏州宝骅机械技术有限公司 | High-pressure gas tightness test method |
| KR20160052217A (en) * | 2014-11-04 | 2016-05-12 | (주)동희 | Leak testing devices |
| CN204241177U (en) * | 2014-12-16 | 2015-04-01 | 中国兵器工业集团第五三研究所 | A kind of seal air-tightness pick-up unit |
| JP2017125773A (en) * | 2016-01-14 | 2017-07-20 | 株式会社デンソー | Device and method for airtight leakage inspection |
| CN107373920A (en) * | 2017-07-18 | 2017-11-24 | 浙江伟星实业发展股份有限公司 | A kind of online error detection labelling apparatus of slide fastener |
| CN207147721U (en) * | 2017-09-21 | 2018-03-27 | 浙江铭品海工智能科技有限公司 | Watertight zip fastener sealing test device |
| CN108731883A (en) * | 2018-07-17 | 2018-11-02 | 泉州市信恒户外用品有限公司 | A kind of slide fastener test device for air tightness |
| CN209166757U (en) * | 2018-12-28 | 2019-07-26 | 湖南航天远望科技有限公司 | A kind of accurate detection device of hermetic seal zipper slip |
| CN112729707A (en) * | 2021-01-19 | 2021-04-30 | 华腾实业（深圳）股份有限公司 | Airtightness detection equipment for production of clothing zippers |
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| CN109580125A (en) | 2019-04-05 |
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