CN2556642Y - Non-contact type inlet water sensor - Google Patents
Non-contact type inlet water sensor Download PDFInfo
- Publication number
- CN2556642Y CN2556642Y CN 02242349 CN02242349U CN2556642Y CN 2556642 Y CN2556642 Y CN 2556642Y CN 02242349 CN02242349 CN 02242349 CN 02242349 U CN02242349 U CN 02242349U CN 2556642 Y CN2556642 Y CN 2556642Y
- Authority
- CN
- China
- Prior art keywords
- water
- base
- water inlet
- shell
- utility
- 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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a non-contact influent water sensor, comprising a shell involutively formed by an upper cover and a base with a water inlet, a passive resonant circuit positioned in the shell and formed by a capacitance, a switch and a coil, water-swelling materials positioned on the water inlet of the base, and a movable top board positioned between the water-swelling materials and the switch, wherein, pins at both ends of the capacitance are positioned at the lowest part of the base and stretch out the shell. The utility model is provided with the passive resonant circuit through the shell and control the make-break of the circuit by the water-swelling material in the base on the one hand, while on the other hand, the pins at both ends of the capacitance is positioned at the lowest part of the base and stretch out the shell, thus guaranteeing the reliability of the influent water sensor form twp aspects. The utility model is applicable to an optical cable or electric cable joint case and other nonmetallic shielding spaces needing water influent examination, and is capable of examining the water influent condition in a non-contact way conveniently and rapidly, so as to lower the working strength of the maintenance personnel.
Description
(1) technical field
The utility model relates to a kind of water inlet sensor, relates in particular to a kind of contactless water inlet sensor.
(2) background technology
Optical fiber communication has become high rate data transmission means the most general in the modern communications owing to have advantages such as long transmission distance, capacity are big.The existing existing lightguide cable link of China is nearly 1,500,000 kilometers at present, and per approximately 2 kilometers have a cable splice closure.Because optical fiber is immersed in the transmission performance that can have a strong impact on optical fiber in the water, so cable splice closure requires airtight waterproof.But because operating personnel's the difference and the influence of field extreme environment, unavoidably the connector box poor sealing can take place and cause into water.When line upkeep, existing detection means wastes time and energy, and efficient is very low.Same cable-joint protector box also faces identical problem.
(3) summary of the invention
The purpose of this utility model is to provide a kind of contactless water inlet sensor, and it can judge fast whether tested measuring point intakes, thereby accelerates maintainer's inspection speed, to alleviate work of maintenance personnel intensity.
A kind of contactless water inlet sensor provided by the utility model comprises: one by loam cake and the involutory shell that constitutes of base with a water inlet; One closes the passive resonant circuit in the shell of placing that constitutes by electric capacity, switch and coil loop; The water uptake expansion material of putting on the one base water inlet; And, a movable panel of between water uptake expansion material and switch, putting, wherein: the pin at described electric capacity two ends places the base extreme lower position and exposes outside the housing.
Above-mentioned contactless water inlet sensor has also stacked wire gauze, suction nonwoven fabrics in regular turn on the base water inlet that is positioned under the described water uptake expansion material.
Adopted above-mentioned technical solution, in the water inlet sensor outer housing, be provided with a passive resonant circuit on the one hand, whether control this circuit working by the water uptake expansion material on the base, pin by the electric capacity two ends places the extreme lower position of sensor and exposes outside the shell on the other hand, after the feasible water inlet, water uptake expansion material jack-up movable holddown, contactor cuts out, and, electric capacity pin under water changes the circuit resonance characteristic, destroy the operate as normal of water inlet sensor on particular resonant frequency, whether the work that makes operating personnel utilize general electronic mark test instrumentation to detect this water inlet sensor on characteristic frequency judges flooded condition.Therefore, the utility model has guaranteed the reliability of water inlet sensor from two aspects.The utility model is applicable to the nonmetal shielding space that optical cable/cable-joint protector box and other need be intake and be detected, and can check flooded condition in non-contacting mode quickly and easily, thereby alleviate work of maintenance personnel intensity.
(4) description of drawings
The utility model structural representation.
(5) embodiment
As shown in Figure 1, the utility model, that is: contactless water inlet sensor, comprise by loam cake 1 and have a water inlet the base 2 involutory shells that constitute, close the movable panel 7 of storing between water uptake expansion material 6 that placing of constituting put on passive resonant circuit in the shell, the base water inlet and water uptake expansion material 6 and the switch 8 by electric capacity 9, switch 8 and coil 3 rings, and the pin at electric capacity 9 two ends places base 2 extreme lower positions and exposes outside the housing.The water inlet outer stack of base is provided with wire gauze 4, suction nonwoven fabrics 5.
Above-mentioned wire netting 4 plays a part permeable and supports, and nonwoven absorbent cloth 5 plays water guide and intercepts the effect of solids.
When the utility model contacts with nonwoven fabrics 5 and with water uptake expansion material 6 through wire netting 4 when water, water uptake expansion material 6 is because the effect volume of water becomes big, upwards hold up movable panel 7, thereby switch 8 is opened, cut off operating circuit, the detector that makes operating personnel use can't receive all right normal signal of expression, thereby judges its water inlet state.In addition, when water did not have the bottom surface of base 2, the pin 10 that protuberate basic unit 2 two outer water inlets are surveyed is under water simultaneously, because the partially conductive of water, destroyed the resonance characteristic of entire circuit, whether the work that makes operating personnel utilize test instrumentation to detect this water inlet sensor on characteristic frequency judges flooded condition.Therefore, the utility model has guaranteed the reliability of water inlet sensor from two aspects.
If the utility model water inlet sensor is installed in the connector box,, generally be installed on the minimum point in the connector box in a horizontal manner in order to help detection to low amounts of water.
Claims (2)
1. contactless water inlet sensor, it is characterized in that: it comprises:
One by loam cake and the involutory shell that constitutes of base with a water inlet;
One closes the passive resonant circuit in the shell of placing that constitutes by electric capacity, switch and coil loop;
The water uptake expansion material of putting on the one base water inlet; And,
One movable panel of between water uptake expansion material and switch, putting,
Wherein: the pin at described electric capacity two ends places the base extreme lower position and exposes outside the housing.
2. contactless water inlet sensor as claimed in claim 1 is characterized in that: also stacked wire gauze, suction nonwoven fabrics on the base water inlet that is positioned under the described water uptake expansion material in regular turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02242349 CN2556642Y (en) | 2002-08-01 | 2002-08-01 | Non-contact type inlet water sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02242349 CN2556642Y (en) | 2002-08-01 | 2002-08-01 | Non-contact type inlet water sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556642Y true CN2556642Y (en) | 2003-06-18 |
Family
ID=33714935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02242349 Expired - Fee Related CN2556642Y (en) | 2002-08-01 | 2002-08-01 | Non-contact type inlet water sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556642Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271665A (en) * | 2013-05-28 | 2013-09-04 | 沁园集团股份有限公司 | Leakage protecting device of heating unit |
| CN109785591A (en) * | 2018-12-19 | 2019-05-21 | 重庆市九龙坡区第二人民医院 | A kind of ostomy bag leakage alarm device |
| CN110208336A (en) * | 2019-06-14 | 2019-09-06 | 国网天津市电力公司电力科学研究院 | A kind of cable epoxy mud sealing property detection device and its detection method |
-
2002
- 2002-08-01 CN CN 02242349 patent/CN2556642Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271665A (en) * | 2013-05-28 | 2013-09-04 | 沁园集团股份有限公司 | Leakage protecting device of heating unit |
| CN103271665B (en) * | 2013-05-28 | 2015-01-07 | 沁园集团股份有限公司 | Leakage protecting device of heating unit |
| CN109785591A (en) * | 2018-12-19 | 2019-05-21 | 重庆市九龙坡区第二人民医院 | A kind of ostomy bag leakage alarm device |
| CN110208336A (en) * | 2019-06-14 | 2019-09-06 | 国网天津市电力公司电力科学研究院 | A kind of cable epoxy mud sealing property detection device and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030618 Termination date: 20100801 |