CN201868018U - Water level control model - Google Patents
Water level control model Download PDFInfo
- Publication number
- CN201868018U CN201868018U CN2010201572359U CN201020157235U CN201868018U CN 201868018 U CN201868018 U CN 201868018U CN 2010201572359 U CN2010201572359 U CN 2010201572359U CN 201020157235 U CN201020157235 U CN 201020157235U CN 201868018 U CN201868018 U CN 201868018U
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- China
- Prior art keywords
- water level
- support
- fixed
- model
- water
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- Expired - Fee Related
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Abstract
The utility model relates to an auxiliary experimental teaching aid for teaching ''Principles of Closed-Loop Control System'' in an obligatory module of the general technology. A model is provided with a support (5) which is fixed on a water tank (7) and can move up and down, a water level indicating device (1) consisting of a power on/off indicator lamp (2) is arranged at the outer end of the support (5), and a hollow floating ball (3) with a magnet, a magnetic switch (4) and a fixed pin (6) are arranged at the other end of the support (5). The magnetic switch (4) is fixed on the support (5) and the fixed pin (6) is arranged on the support (5). The movable support (5) consists of an outer metal rod and an inner metal rod, which are fixed on the water tank by the fixed pin (6). The power on/off indicator lamp (2) is arranged on the water level indicating device (1). The water level can be preset by moving the movable support (5) up and down. The water supply is automatically stopped when the water level reaches the preset position; the water supply is automatically carried out when the water level is lowered down. Thus, the demonstration purpose is achieved.
Description
Affiliated technical field:
The utility model relates to the special-purpose teaching aid of a kind of regular senior secondary school current techique course.
Background technology:
At present, because the current techique course is senior middle school's compulsory course that China newly opens, also there is not to be used for satisfying the teaching aid that teaching is used about the test of water level control principle.
Summary of the invention:
This utility model provides a kind of and makes things convenient in the required module 2 of current techique, about the ancillary test teaching aid of teaching of research " closed-loop control system principle ".
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of water level controlling models, this model has by fixed pin and is fixed on movable supporting frame up and down on the transparent water tank, movable supporting frame divides inside and outside two Metallic rod to form, on the described outer Metallic rod water level indicating device that contains the power on/off pilot lamp is installed, on the Metallic rod magnetic switch is housed in described, and is set with the hollow ball float of carry magnet.
The beneficial effects of the utility model are: this teaching aid is in teaching process, and the student can probe into test easily and fast, and is simple in structure, easy to operate.
Description of drawings:
1, Fig. 1 is the left view of the utility model schematic diagram;
2, Fig. 2 is the front view of the utility model schematic diagram.
1 is water level indicating device among Fig. 1, the 3rd, and the hollow ball float of carry magnet, the 4th, magnetic switch, the 5th, movable supporting frame, the 6th, fixed pin, the 7th, transparent water tank.2 is power on/off pilot lamp among Fig. 2.
Embodiment:
Below in conjunction with drawings and Examples the utility model is further specified.
Water level controlling models shown in Figure 1, this model has by fixed pin 6 and is fixed on movable supporting frame up and down 5 on the transparent water tank 7, movable supporting frame divides inside and outside two Metallic rod to form, the water level indicating device 1 that contains power on/off pilot lamp 2 is installed on the described outer Metallic rod, on the Metallic rod magnetic switch 4 is housed in described, and is set with the hollow ball float 3 of carry magnet.
Move up and down the movable supporting frame 5 that is inserted on the transparent water tank 7, determined preset water level, fixedly fixed pin 6.Energized begins to draw water, and shows on the water level indicating device 1 to begin to draw water, when water level begins to rise, the hollow ball float 3 that is enclosed within the carry magnet on the support 5 begins come-up, arrives predeterminated position, magnetic switch 4 closures, water pumper stops pumping, and shows on the water level indicating device 1 to stop pumping.When the water level in the water tank began to descend, the hollow ball float 3 of carry magnet also began to descend, and magnetic switch 4 is opened energized and begun to draw water, and and so forth, reaches the purpose of demonstration.
Claims (1)
1. water level controlling models, it is characterized in that: this model has by fixed pin (6) and is fixed on movable supporting frame up and down (5) on the transparent water tank (7), movable supporting frame (5) divides inside and outside two Metallic rod to form, the water level indicating device (1) that contains power on/off pilot lamp (2) is installed on the described outer Metallic rod, on the Metallic rod magnetic switch (4) is housed in described, and is set with the hollow ball float (3) of carry magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201572359U CN201868018U (en) | 2010-04-13 | 2010-04-13 | Water level control model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201572359U CN201868018U (en) | 2010-04-13 | 2010-04-13 | Water level control model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868018U true CN201868018U (en) | 2011-06-15 |
Family
ID=44139168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201572359U Expired - Fee Related CN201868018U (en) | 2010-04-13 | 2010-04-13 | Water level control model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108236381A (en) * | 2017-12-15 | 2018-07-03 | 深圳国创名厨商用设备制造有限公司南海分公司 | A kind of float switch installation method of steam water tank and steam water tank |
-
2010
- 2010-04-13 CN CN2010201572359U patent/CN201868018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108236381A (en) * | 2017-12-15 | 2018-07-03 | 深圳国创名厨商用设备制造有限公司南海分公司 | A kind of float switch installation method of steam water tank and steam water tank |
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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: 20110615 Termination date: 20130413 |