CN1071014A - The equipment that is used for testing water-proof or water-resistant camera watertightness - Google Patents
The equipment that is used for testing water-proof or water-resistant camera watertightness Download PDFInfo
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- CN1071014A CN1071014A CN 92110748 CN92110748A CN1071014A CN 1071014 A CN1071014 A CN 1071014A CN 92110748 CN92110748 CN 92110748 CN 92110748 A CN92110748 A CN 92110748A CN 1071014 A CN1071014 A CN 1071014A
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- watertightness
- testing apparatus
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- reliever
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- Structure And Mechanism Of Cameras (AREA)
Abstract
A kind of watertightness testing apparatus, it comprises an air reliever, this device links to each other with tested fuselage in fluid-tight mode; One is used for differentiating the discriminating gear that is changed by reliever decompression back tested fuselage (camera) air pressure inside; And indicating device that is used for indicating caused waterproof of reliever or the tested fuselage interior air pressure change of anti-water according to discriminating gear.
Description
The present invention relates to a kind of equipment that is used for testing water-proof or water-resistant camera watertightness.
Can be for test in the watertightness of the camera that uses in the rain or under water, existing method is that camera to be tested is placed an airtight container.This container is by such as air compressor one class device pressurization, thereby can test its watertightness according to the air pressure change of intending detection camera inside.Use this class pressurizing vessel, if camera is not fluid-tight, air can enter fuselage because of air pressure in the closed container increases, and the result causes the camera air pressure inside to increase.As a result, when taking out camera and immerse it in water from this container, the defectiveness position of this camera just has bubble and emerges.Therefore, the no bubble in back produces in the water if camera is dipped into, and can think that then camera is fluid-tight.
Yet, utilize said method to do the watertightness test, must need the tun that is enough to hold fully whole camera, this just causes testing apparatus huge.
Moreover in the watertightness test, camera must immerse in the water fully, if camera is not fluid-tight, water will enter fuselage, causes the damage of camera internals.
The equipment that fundamental purpose of the present invention is to provide a kind of simple test camera watertightness utilizes this equipment, even camera is not fluid-tight, water can not enter into fuselage interior yet.
To achieve the object of the present invention, provide a kind of equipment of testing watertightness, it comprises an air reliever that links to each other with camera to be tested in waterproof mode.This equipment also comprises a discriminating gear that is used to detect by causing the variation of camera air pressure inside after the reliever decompression, and an indicating device that is used for indicating according to this discriminating gear waterproof that reliever causes or the variation of anti-water machine air pressure inside.
Above-mentioned indicating device is preferably with an indicator, and with after reliever is to the decompression of camera internal implementation, no matter whether the camera air pressure inside changes, and this indicator can both provide corresponding signal.
This kind waterproof or anti-water machine have a built-in battery box that leads to its inside, and battery case is inhaled the hole by one and communicated with the external world, inhale in the hole to be provided with a detachable gland.
According to another ingredient of the present invention, provide a kind of waterproof testing apparatus that can link to each other with waterproof to be measured or anti-water machine.The camera that is applicable to this testing apparatus has an aperture that leads to fuselage interior, and battery case aperture therewith communicates, and is equipped with a separate type gland in the aperture.Testing apparatus comprises a reliever that links to each other with waterproof or anti-water machine through this gland; A pressure test device that is used for the detection camera air pressure inside; And detection signal according to pressure test device is differentiated the air pressure discriminating gear that changes through the post-decompression waterproof of reliever or anti-water machine air pressure inside.
According to another ingredient of the present invention, a kind of equipment that is used for testing water-proof or anti-water machine watertightness is provided, this equipment comprises that one makes himself and intends surveying the device that camera is connected; A reliever that is used to reduce the camera air pressure inside; And pick-up unit that is used for detection camera fuselage interior air pressure change.
Content disclosed in this invention relates to the theme of (proposition on September 17th, 1991) in Japanese utility model application 2-82219 number, and the latter's full content is quoted from this as a reference.
Referring to accompanying drawing in detail content of the present invention is described in detail below, wherein Fig. 1 is the schematic cross sectional view that is used to test camera watertightness equipment.
Most preferred embodiment of the present invention is described below.
Fig. 1 shows an embodiment who understands testing water-proof or anti-water machine 11 watertightness equipment 20.Waterproof to be tested or anti-water machine have interconnective upper housing 12 and lower casing 13, and upper housing 12 has a groove 14 for connection, it with lower fuselage 13 on be connected with protuberance 15 chimeric, then be provided with water tight packing 16 between the two.
When piston 24 moves to the lowermost end position of piston rod 32, detector switch 27 will be opened, make detection signal reach timer 28, and the air pressure of camera 11 inside fall and just is able to be measured by rain glass 26, determines the initial value of air pressure whereby by the lead 29 of joint detection switch 27 and timer 28.
In case surpass timer 28 preset times counting, detection signal will be sent to judging circuit (discriminating gear) 30.Judging circuit 30 links to each other with rain glass 26 through lead 31, judging circuit 30 also in succession one and can the show NG indicator (being hummer, bulb) 34 of " NG(no thoroughfare) signal ", air pressure initial value that judging circuit 30 comparison barometers 26 are measured and the measured atmospheric pressure value of same thus barometer after a schedule time, if both are different, then NG indicator 34 can provide the NG signal.
The course of work of the watertightness testing apparatus of tool said structure is as follows:
With water tight packing 16 waterproof or the anti-water machine 11 that link up of two parts casing 12 and 13 up and down, its test is come down to carry out in the final stage of its assembling.During test, be screwed on the screw thread inlet 17 gland 21 and the suction hole 21a that conduit 22 is connected on this gland 21.
Then, piston rod 32 moves to lowermost end, and piston 24 touches mutually with bearing 33 at this and closes, and is supported by piston shelf.Because piston 24 variation has taken place the position in column type air chamber 23, camera 11 air pressure inside of leading to conduit 22 also will reduce.The result opens detector switch, and detection signal is passed to timer 28 via lead 29.Timer 28 promptly responds detection signal and picks up counting.In addition, because detector switch is opened, detection signal promptly reaches barometer 26 by lead 36, and the air pressure that this barometer will be measured camera 11 inside falls, to determine to be sent to the air pressure initial value of judging circuit 30.
If the upper housing 12 of camera 11, there are permeable defective in lower casing 13 or this both connecting portion, and extraneous air will enter camera 11 because of existing draught head.During the timer timing, the barometer 26 constantly air pressure of detection camera 11 inside increases situation.Judging circuit 30 will judge whether to have finished timing, if finished timing, judging circuit 30 just begins the atmospheric pressure value after comparison air pressure initial value and the timing, if there is difference in both, then judging circuit 30 can transmit enabling signal to indicator 34, NG indicator 34 promptly shows " NG signal " in view of the above, and like this, operating personnel will know that waterproof or anti-water machine 11 do not possess watertightness.
If camera 11 do not have defect part, during timer 26 timing, the camera air pressure inside just can not change (increase), thereby NG indicator 34 do not show any signal, and at this moment camera is fluid-tight as can be known.
As previously mentioned, the present invention with camera is immersed in the water differently with the prior art of measuring its watertightness, avoided water to enter the danger of fuselage, thereby made the not reason water inlet and damaging of camera internals.
Although among the embodiment that illustrates in the above, watertightness testing apparatus 20 is to link to each other with waterproof or anti-water machine by the gland 21 that is screwed on the lower casing 13 screw threads inlet 17, but this equipment 20 still is applicable to waterproof or the anti-water machine that has spilehole on the fuselage, placed ventilative but fluid-tight filtration members in the spilehole of this camera, guaranteed quiet run such as zoom lens with the air pressure inside and outside the balanced fuselage.When the watertightness of this camera of test, the conduit 22 of testing apparatus 20 linked to each other with the spilehole of camera to get final product.
Though usefulness is the plug-in type gland 21 that is screwed on the camera outer surface thread inlet 17 in the above-described embodiments, also can use the inlet of no externally threaded gland and no internal thread.In this case, the watertightness of gland and inlet is established by seal or filler for example are set therein.
As previously mentioned, watertightness equipment of the present invention comprises: a reliever that is used to reduce the camera air pressure inside that links to each other with tested camera suction hole; A pick-up unit that is used for the detection camera air pressure inside; And a detection signal that is used for response detection device differentiates the discriminating gear of air pressure change behind the reliever decompression operation, and therefore, this equipment can make things convenient for and accurately test watertightness.
Although with concrete device, material and embodiment the present invention is described herein, should know that the present invention is not limited to above disclosed particular condition, but be applicable to prolong in the appended claim book scope and whole equipment of equivalence with it.
Claims (16)
1, a kind of testing apparatus of watertightness, it comprises: a reliever that links to each other with a tested fuselage in fluid-tight mode, to detect the watertightness of this tested fuselage; A discriminating gear that is used to differentiate tested fuselage interior air pressure change after the reliever decompression; And indicating device that is used for indicating caused waterproof of reliever or the tested fuselage interior air pressure change of anti-water according to this discriminating gear.
2, the watertightness testing apparatus described in claim 1, indicating device wherein comprises an indicator, when causing above-mentioned tested fuselage interior air pressure change after the reliever decompression, this indicator can show indicator signal.
3, watertightness testing apparatus as claimed in claim 2, indicator signal wherein is a sound signal.
4, the watertightness testing apparatus described in claim 2, indicator signal wherein is a wigwag.
5, the watertightness testing apparatus described in claim 1, indicating device has wherein comprised an indicator, when not causing this tested fuselage interior air pressure change after the reliever decompression, this indicator can show indicator signal.
6, the watertightness testing apparatus described in claim 5, indicator signal wherein is a sound signal.
7, watertightness testing apparatus as claimed in claim 5, indicator signal wherein is a wigwag.
8, watertightness testing apparatus as claimed in claim 1, reliever wherein comprises: a cylindrical air chamber that links to each other with tested fuselage; One has the piston that slidingtype is inserted in the piston rod in this cylindrical air chamber, and when piston moved to the precalculated position, aforementioned tested fuselage interior might reduce pressure.
9, watertightness testing apparatus as claimed in claim 1, tested fuselage wherein are waterproof or anti-water machine.
10, watertightness testing apparatus as claimed in claim 9, this equipment wherein is applicable to the camera that has battery case, and this battery case with separate type gland with extraneous isolated, and ventilate in battery case and camera outside.
11, watertightness testing apparatus as claimed in claim 10 has a suction hole between battery case and camera space outerpace on the separate type gland wherein.
12, the watertightness testing apparatus described in claim 10, reliever wherein comprises: a cylindrical air chamber that links to each other with aforementioned gland; One has the piston that slidingtype is inserted in the piston rod in this column type air chamber, and when piston moves to the precalculated position, may reduce pressure in camera inside.
13, a kind of equipment that is used to test the camera watertightness, it comprises: a coupling arrangement that is used for this equipment is connected to tested camera; A reliever that is used to reduce the camera air pressure inside; And pick-up unit that is used for the detection camera air pressure inside.
14, watertightness testing apparatus as claimed in claim 13, wherein, it also comprises an indicating device that is used to produce indication camera air pressure inside variable signal.
15, watertightness testing apparatus as claimed in claim 13, reliever wherein comprises an air pump that has piston.
16, watertightness testing apparatus as claimed in claim 15, it also comprises a switchgear, when above-mentioned air pump inner carrier position changed, this switch can be opened.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP82219/91 | 1991-09-17 | ||
| JP8221991U JPH0527740U (en) | 1991-09-17 | 1991-09-17 | Drip-proof camera for drip-proof camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1071014A true CN1071014A (en) | 1993-04-14 |
Family
ID=13768306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92110748 Pending CN1071014A (en) | 1991-09-17 | 1992-09-17 | The equipment that is used for testing water-proof or water-resistant camera watertightness |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0527740U (en) |
| CN (1) | CN1071014A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098891A (en) * | 2009-12-10 | 2011-06-15 | 佳能企业股份有限公司 | Waterproof electronic device with test structure, water leakage tester and testing method |
| CN103063367A (en) * | 2011-10-21 | 2013-04-24 | 三洋科技中心(深圳)有限公司 | Waterproof display device and water inflow monitoring method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100582918C (en) * | 2008-09-08 | 2010-01-20 | 同致电子科技（厦门）有限公司 | Method for sealing water-proof CCD camera |
| KR101457075B1 (en) * | 2014-05-21 | 2014-10-31 | 한국고무 주식회사 | A inspection equipment for waterproof performance |
| KR102046513B1 (en) | 2018-03-20 | 2019-11-19 | 엘지전자 주식회사 | Device for checking leak |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07113592B2 (en) * | 1989-01-13 | 1995-12-06 | 東洋製罐株式会社 | Leakage inspection method and device for sealed container |
-
1991
- 1991-09-17 JP JP8221991U patent/JPH0527740U/en active Pending
-
1992
- 1992-09-17 CN CN 92110748 patent/CN1071014A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098891A (en) * | 2009-12-10 | 2011-06-15 | 佳能企业股份有限公司 | Waterproof electronic device with test structure, water leakage tester and testing method |
| CN103063367A (en) * | 2011-10-21 | 2013-04-24 | 三洋科技中心(深圳)有限公司 | Waterproof display device and water inflow monitoring method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0527740U (en) | 1993-04-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |