CN2556623Y - Dry vacuum leak detector - Google Patents
Dry vacuum leak detector Download PDFInfo
- Publication number
- CN2556623Y CN2556623Y CN 02245984 CN02245984U CN2556623Y CN 2556623 Y CN2556623 Y CN 2556623Y CN 02245984 CN02245984 CN 02245984 CN 02245984 U CN02245984 U CN 02245984U CN 2556623 Y CN2556623 Y CN 2556623Y
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- CN
- China
- Prior art keywords
- vacuum
- pan
- bubble
- vacuum pan
- dry
- Prior art date
- 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.)
- Expired - Fee Related
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a dry vacuum leakage detector, relating to an instrument specially used for detecting medicine encapsulated with a bubble board or food leakage situation, which comprises a case body, a vacuum pan and a vacuum pump which are arranged in the case body. The vacuum pan is communicated with a suction inlet of the vacuum pump by a pipeline and a valve. The top part of the vacuum pan is provided with a switchable transparent sealed pan cover. When detecting, the bubble board is put inside the vacuum pan (an aluminum foil covering layer faces upwards) and the vacuum pan is vacuumized so as to cause the vacuum pan to form subpressure. For the bubble board without leakage, the aluminum foil layer expands outwards because the pressure inside the bubble is higher than the pressure outside the bubble; for the bubble board with leakage, the aluminum layer does not expand outwards because the pressure inside and outside the bubble is balanced. Accordingly, the bubble board with leakage can be detected fast. The utility model has simple structure, convenient operation and does not pollute the detected sample, thus being especially applicable to detecting medicine encapsulated with the bubble board or food leakage situation.
Description
Technical field
The utility model relates to a kind of instrument that detects bubble plate encapsulation medicine or food seepage situation that is exclusively used in, and particularly relates to a kind of dry vacuum leak locator.
Background technology
The encapsulation of bubble plate is a kind of medicine commonly used or the inner packing of food.The bubble plate is made by the PVC plastic plate usually, and the one side is formed with the groove that is used to place tablet or capsule, and its planar side is utilized foil sealing, and the pressure in the bubble is atmospheric pressure.In order to detect the sealing situation of bubble plate, bubble plate encapsulation medicine or food must be spot-check with vacuum leak detector before dispatching from the factory.Vacuum leak detector of the prior art mostly is the wet vacuum leak locator, though its pattern is had nothing in common with each other, but its ultimate principle is identical, being about to be packaged in medicine in the bubble plate or food places colored liquid and vacuumizes, when vacuum discharges, there is the bubble of seepage will fill into colored liquid, can judges in view of the above whether the bubble plate has seepage.
Though above-mentioned wet vacuum leak locator can detect the seepage situation of bubble plate, still exist some that defective to be overcome is arranged.At first, because the pollution of colored liquid is scrapped processing by the sample that colored liquid soaked with work, thereby is caused unnecessary waste.Secondly, after the sample that must be soaked drains, could judge whether colored liquid enters in the bubble, so testing process is cumbersome, consuming time long.
Summary of the invention
The purpose of this utility model promptly is to provide a kind of dry vacuum leak locator, to avoid tracer liquid test sample is polluted, and improves the efficient that detects simultaneously.
To achieve these goals, the utility model utilizes casing and the vacuum pan and the vacuum pump that are installed in the casing to constitute a kind of dry vacuum leak locator, vacuum pan is communicated with the vacuum pump suction inlet by pipeline and valve, and the top of vacuum pan is provided with transparent sealing disk cover to be opened/closed.
The bubble plate that will be packaged with medicine or food places in the vacuum pan (the aluminium foil overlayer up) and when vacuum pan vacuumized, will form negative pressure in the vacuum pan.For the bubble of ne-leakage, the pressure in the bubble will be higher than the outer pressure of bubble, and its aluminium foil layer will outwards expand; And for the bubble that seepage is arranged, the pressure equilibrium that bubble is inside and outside, aluminium foil layer can outwards not expand.With the naked eye observe aluminium foil layer and whether expand, can judge the seepage situation of bubble plate rapidly by the transparent sealing disk cover.
Owing to without any tracer liquid, therefore can not pollute in the vacuum pan, can avoid unnecessary waste to test sample.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the utility model dry vacuum leak locator.
Description of drawings
Fig. 1 is the structural representation of the utility model dry vacuum leak locator
Embodiment
As shown in Figure 1, the utility model dry vacuum leak locator mainly is made of casing 1 and vacuum pan 2 that is arranged on casing 1 top and the vacuum pump 3 that is installed in vacuum pan 2 lower square box 1.The casing 1 of vacuum pan 2 front sides is provided with guidance panel 4, and the bottom of casing 1 is provided with universal rolling wheel 5.
The bottom of vacuum pan 2 is provided with pore 6 and is communicated with the suction inlet of vacuum pump 3 by pipeline 7 and solenoid valve 8, and the action button of solenoid valve 8 is installed on the guidance panel 4.The top of vacuum pan 2 is provided with transparent sealing disk cover 9 to be opened/closed, its sealing joint strip of working in coordination with disk cover 9 that is provided with suitable for reading.
Be communicated with to be connected in the pipeline 7 of vacuum pan 2 and vacuum pump 3 and be used to control vacuum pump 3 self-stopping electric contact type vacuum meters 10 and be used to monitor the vacuum meter 11 of vacuum tightnesss in the vacuum pan 2 and be used to make vacuum pan 2 broken empty solenoid valves 12, the action button of vacuum meter 11 and solenoid valve 12 is installed on the guidance panel 4.
When detecting the seepage of bubble plate, bubble plate sample is placed in the vacuum pan 2 (aluminium foil layer is up), build disk cover 9 and start vacuum pump 3 and will vacuumize in the vacuum pan 2, when the vacuum tightness in the vacuum pan 2 reaches setting value, vacuum pump 3 automatic stoppings.At this moment, can be observed the expansion situation of bubble plate aluminium foil layer by transparent sealing disk cover 9.For the bubble plate that seepage is arranged, because the inside and outside pressure equilibrium of bubble, aluminium foil layer can not expand; And for the bubble plate of ne-leakage, because the pressure in the bubble is higher than the outer pressure of bubble, aluminium foil layer will outwards expand.In view of the above, can detect the sample of the bubble plate of seepage rapidly.Turn-off solenoid valve 8 and make emptying in the vacuum pan 2, can open disk cover 9 and change bubble plate sample by solenoid valve.
In sum as can be known, the utility model is simple in structure, and is easy to operate, and without any pollution, and trace routine is simple to detected bubble plate sample, and the detection efficiency height is so be specially adapted to detect the seepage situation of bubble plate encapsulation medicine or food.
Claims (8)
1, a kind of dry vacuum leak locator is characterized in that being made of casing and the vacuum pan and the vacuum pump that are installed in the casing, and vacuum pan is communicated with the vacuum pump suction inlet by pipeline and valve, and its top is provided with transparent sealing disk cover to be opened/closed.
2, dry vacuum leak locator according to claim 1 is characterized in that described vacuum pan is arranged on the top of casing, and vacuum pump is arranged in the casing of vacuum pan below, and the casing of vacuum pan front side is provided with guidance panel.
3, dry vacuum leak locator according to claim 1 and 2, the valve that it is characterized in that being communicated with vacuum pan and vacuum pump is a solenoid valve, its action button is arranged on the guidance panel.
4, dry vacuum leak locator according to claim 1 and 2 is characterized in that being communicated with being provided with in the pipeline of vacuum pan and vacuum pump and is used to make the broken empty solenoid valve of vacuum pan, and its action button is arranged on the guidance panel.
5, dry vacuum leak locator according to claim 1 is characterized in that the sealing joint strip of working in coordination with disk cover that is provided with suitable for reading of vacuum pan.
6, dry vacuum leak locator according to claim 1 is characterized in that being communicated with being connected in the pipeline of vacuum pan and vacuum pump and is used for controlling automatically the electric contact type vacuum meter that vacuum pump stops.
7, dry vacuum leak locator according to claim 1 and 2 is characterized in that being communicated with being connected in the pipeline of vacuum pan and vacuum pump and is used to monitor the vacuum meter of vacuum tightness in the vacuum pan and be arranged on guidance panel.
8, dry vacuum leak locator according to claim 1 is characterized in that the bottom of described casing is provided with universal rolling wheel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02245984 CN2556623Y (en) | 2002-08-14 | 2002-08-14 | Dry vacuum leak detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02245984 CN2556623Y (en) | 2002-08-14 | 2002-08-14 | Dry vacuum leak detector |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2556623Y true CN2556623Y (en) | 2003-06-18 |
Family
ID=33717413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 02245984 Expired - Fee Related CN2556623Y (en) | 2002-08-14 | 2002-08-14 | Dry vacuum leak detector |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2556623Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1995940B (en) * | 2006-01-20 | 2010-08-11 | 河北第二机械工业有限公司 | Sealing performance detection method by using vacuum balancing method |
CN108072492A (en) * | 2018-01-15 | 2018-05-25 | 辽宁工业大学 | A kind of vacuum leak detector |
-
2002
- 2002-08-14 CN CN 02245984 patent/CN2556623Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1995940B (en) * | 2006-01-20 | 2010-08-11 | 河北第二机械工业有限公司 | Sealing performance detection method by using vacuum balancing method |
CN108072492A (en) * | 2018-01-15 | 2018-05-25 | 辽宁工业大学 | A kind of vacuum leak detector |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |