CN201322638Y - Water level alarm - Google Patents
Water level alarm Download PDFInfo
- Publication number
- CN201322638Y CN201322638Y CNU2008201715834U CN200820171583U CN201322638Y CN 201322638 Y CN201322638 Y CN 201322638Y CN U2008201715834 U CNU2008201715834 U CN U2008201715834U CN 200820171583 U CN200820171583 U CN 200820171583U CN 201322638 Y CN201322638 Y CN 201322638Y
- Authority
- CN
- China
- Prior art keywords
- alarm
- water level
- level alarm
- water
- float
- 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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- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a water level alarm, which is mainly applied on auxiliary instruments for teaching in primary and secondary schools. The water level alarm comprises a floater, an alarm and a casing, wherein the floater is arranged in the casing, a water level staff gage is carved on the casing, and the alarm is formed by connecting a power supply, a warning lamp and a metal contact in series by an electrical wire. The water level alarm has reasonable design, simple and easy-understanding principle and low cost, and is particularly suitable for teaching work in primary and secondary schools.
Description
Technical field
The utility model relates to a kind of alarm, and particularly a kind of water-level alarm instrument is mainly used in the supplementary instrument of middle and primary schools' teaching.
Background technology
The water-level alarm instrument of prior art, powerful, of a great variety, such as mechanical type, dynamo-electric convolution, microelectronic etc., but structure is comparatively complicated for students in middle and primary schools, the principle indigestion, and price is more expensive, is not suitable for being applied to students in middle and primary schools' teaching.
The utility model content
Technical problem to be solved in the utility model is to overcome existing above-mentioned deficiency in the prior art, and a kind of reasonable in design is provided, and principle is simple and easy to bright water-level alarm instrument.
The technical scheme in the invention for solving the above technical problem is: a kind of water-level alarm instrument is characterized in that: comprise float, alarm and housing, float is positioned at enclosure interior, is carved with gauge on the housing.
Alarm described in the utility model comprises power supply, alarm lamp and hard contact, and power supply is connected with electric wire with alarm lamp; Hard contact quantity is two, and they are separately positioned on the lead two ends.
Float upper surface described in the utility model is bonded with the metal material with electric conductivity.
Warning line on hard contact described in the utility model and the gauge is on the same surface level.
The utility model compared with prior art has the following advantages: rational in infrastructure, and low price; Simultaneously, principle of the present utility model is simple and easy to bright, is specially adapted to the teaching of middle and primary schools.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to Fig. 1, the utility model mainly is made up of float 1, alarm 2 and housing 3.Float 1 is positioned at housing 3 inside.Float 1 material can be a foam, and its upper surface 11 is bonded with the metal material with electric conductivity, such as copper.Alarm 2 is in series through lead by power supply 4, alarm lamp 5 and hard contact 6, but does not form the loop.Hard contact 6 quantity are two, and they are separately positioned on the lead two ends, and are positioned at housing 3 inside.Housing 3 materials are transparent plastic or clear glass; Be carved with gauge on the housing 3, water level alarm line 7 on the gauge and described hard contact 6 are on same surface level.
During use, when injecting water in the housing 3, float 1 is along with water level rises, and when reaching warning line, float 1 upper surface contacts with hard contact 6 in the alarm 2, makes alarm 2 interior circuit composition loops, and alarm lamp 5 is luminous.If decline of water table, then float 1 is also along with decline of water table, and float 1 upper surface separates with hard contact 6 in the alarm 2, makes circuit breaker in the alarm 2, and alarm lamp 5 is not luminous.
Claims (4)
1, a kind of water-level alarm instrument, it is characterized in that: comprise float, alarm and housing, float is positioned at enclosure interior, is carved with gauge on the housing.
2, water-level alarm instrument according to claim 1, it is characterized in that: described alarm comprises power supply, alarm lamp and hard contact, power supply is connected with electric wire with alarm lamp; Hard contact quantity is two, and they are separately positioned on the lead two ends.
3, water-level alarm instrument according to claim 1 is characterized in that: described float upper surface is bonded with the metal material with electric conductivity.
4, water-level alarm instrument according to claim 1 and 2, it is characterized in that: the warning line on described hard contact and the gauge is on the same surface level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201715834U CN201322638Y (en) | 2008-12-29 | 2008-12-29 | Water level alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201715834U CN201322638Y (en) | 2008-12-29 | 2008-12-29 | Water level alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322638Y true CN201322638Y (en) | 2009-10-07 |
Family
ID=41160017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201715834U Expired - Fee Related CN201322638Y (en) | 2008-12-29 | 2008-12-29 | Water level alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322638Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354006A (en) * | 2011-07-03 | 2012-02-15 | 河海大学 | Alarm for mountain torrent and mud-rock flow |
| CN102788470A (en) * | 2012-09-05 | 2012-11-21 | 合肥美的荣事达电冰箱有限公司 | Water pan assembly for refrigerator and refrigerator provided with water pan |
| CN110747768A (en) * | 2019-10-28 | 2020-02-04 | 郭鑫 | Overweight-preventing intercepting mechanism with speed-limiting warning effect |
| CN110793812A (en) * | 2019-11-20 | 2020-02-14 | 河南科技大学 | Multifunctional water sample in-situ collection device |
-
2008
- 2008-12-29 CN CNU2008201715834U patent/CN201322638Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354006A (en) * | 2011-07-03 | 2012-02-15 | 河海大学 | Alarm for mountain torrent and mud-rock flow |
| CN102788470A (en) * | 2012-09-05 | 2012-11-21 | 合肥美的荣事达电冰箱有限公司 | Water pan assembly for refrigerator and refrigerator provided with water pan |
| CN110747768A (en) * | 2019-10-28 | 2020-02-04 | 郭鑫 | Overweight-preventing intercepting mechanism with speed-limiting warning effect |
| CN110747768B (en) * | 2019-10-28 | 2021-11-12 | 江苏锡拖农机有限公司 | Overweight-preventing intercepting mechanism with speed-limiting warning effect |
| CN110793812A (en) * | 2019-11-20 | 2020-02-14 | 河南科技大学 | Multifunctional water sample in-situ collection device |
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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: 20091007 Termination date: 20101229 |