CN204203791U - A kind of fluid level control device - Google Patents
A kind of fluid level control device Download PDFInfo
- Publication number
- CN204203791U CN204203791U CN201420693120.XU CN201420693120U CN204203791U CN 204203791 U CN204203791 U CN 204203791U CN 201420693120 U CN201420693120 U CN 201420693120U CN 204203791 U CN204203791 U CN 204203791U
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- China
- Prior art keywords
- switch
- return line
- normally closed
- float switch
- branch road
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Abstract
The utility model discloses a kind of fluid level control device, comprise water tank, the top cover of water tank is provided with float switch, float switch comprises normal open switch and normally closed switch, float switch is connected on return line, and return line two ends connect on the live wire of pump motor and zero line, and the normal open switch of float switch is connected on branch road, branch road two ends are connected on loop and zero line, and branch road is also in series with work timer; Normally closed switch is connected on return line, return line is also in series with the moment time relay, normally closed switch, moment the time relay and normal open switch, the timer that works is in parallel.The utility model structure is simple, and control element only has a float switch, and stability is high; Be in liquid level surface for a long time, wear resistant corrosion resistant long service life; Circuit is simply novel, and water consumption and timer organic structure, brief and practical, failure rate is extremely low.
Description
technical field:
The utility model relates to fluid level controller, particularly relates to a kind of fluid level control device.
background technology:
On market, fluid level controller adopts electrode, floating drum pullswitch, the many float switches of bound, Static prestressed-pile etc. also well can reach the object of water lev el control mostly, but these sensors controlled or controller are all immersed in liquid without exception, corrosion and wearing and tearing substantially reduce serviceable life, the drawback that maintenance capacity is large, poor stability is fluid level controller in the market.
utility model content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of fluid level control device.
The technical solution of the utility model is as follows:
Fluid level control device, comprise water tank, it is characterized in that: the top cover of described water tank is provided with float switch, float switch comprises normal open switch and normally closed switch, float switch is connected on return line, and return line two ends connect on the live wire of pump motor and zero line, and the normal open switch of float switch is connected on branch road, branch road two ends are connected on return line and zero line, and branch road is also in series with work timer; Normally closed switch is connected on return line, return line is also in series with the moment time relay, normally closed switch, moment the time relay and normal open switch, the timer that works is in parallel.
Described fluid level control device, is characterized in that: described live wire and zero line are also provided with working relay.
The utility model has the advantages that:
1, structure is simple, and control element only has a float switch, and stability is high;
2, liquid level surface is in for a long time, wear resistant corrosion resistant long service life;
3, circuit is simply novel, and water consumption and timer organic structure, brief and practical, failure rate is extremely low.
accompanying drawing illustrates:
Fig. 1 is mounting structure schematic diagram of the present utility model.
Fig. 2 is electrical schematic diagram of the present utility model.
embodiment:
See accompanying drawing:
Fluid level control device, comprise water tank 1, the top cover of water tank 1 is provided with float switch 2, float switch 2 comprises normal open switch 2-1 and normally closed switch 2-2, float switch 2 is connected on return line 3, and on the live wire 5 that return line 3 two ends connect water pump 4 motor and zero line 6, the normal open switch 2-1 of float switch 2 is connected on branch road 7, branch road 7 two ends are connected on return line and zero line, and branch road 7 is also in series with work timer 8; Normally closed switch 2-2 is connected on return line 3, return line 3 is also in series with the moment time relay 9, normally closed switch 2-2, moment the time relay 9 and normal open switch 2-1, the timer 8 that works is in parallel.
Live wire 5 and zero line 6 are also provided with working relay 10.
Liquid level principle: after electric power starting, power supply connects work timer 8 through float switch 2 normally closed switch (normally closed contact) 2-2, work timer 8 starts timing, work timer 8 can set timing time according to water consumption, timing reaches setting-up time, normal open switch (normally opened contact) 2-1 closes, working relay 10 be energized main contacts close, pump working is to cistern water supply, when water level arrives fixing float switch, ball float moves inner tongue tube and be transformed into disconnection by closed, the time relay 9 dead electricity instantaneously, normally closed switch (normally closed contact) 2-2 resets, working relay 10 dead electricity resets, make contact disconnects, water pump stops supplying water and keeping, until ball float after water level decreasing to lower limit inner tongue tube by disconnection be transformed into closed after, work timer 8 just can restart timing, again start water pump after reaching the time limit to supply water, circulation keeps the water yield of the certain water level of water tank automatically thus.
Claims (2)
1. a fluid level control device, comprise water tank, it is characterized in that: the top cover of described water tank is provided with float switch, float switch comprises normal open switch and normally closed switch, float switch is connected on return line, and return line two ends connect on the live wire of pump motor and zero line, and the normal open switch of float switch is connected on branch road, branch road two ends are connected on return line and zero line, and branch road is also in series with work timer; Normally closed switch is connected on return line, return line is also in series with the moment time relay, normally closed switch, moment the time relay and normal open switch, the timer that works is in parallel.
2. fluid level control device according to claim 1, is characterized in that: described live wire and zero line are also provided with working relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693120.XU CN204203791U (en) | 2014-11-18 | 2014-11-18 | A kind of fluid level control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693120.XU CN204203791U (en) | 2014-11-18 | 2014-11-18 | A kind of fluid level control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204203791U true CN204203791U (en) | 2015-03-11 |
Family
ID=52661732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420693120.XU Active CN204203791U (en) | 2014-11-18 | 2014-11-18 | A kind of fluid level control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204203791U (en) |
-
2014
- 2014-11-18 CN CN201420693120.XU patent/CN204203791U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |