CN2177228Y - Liquid level over full controller - Google Patents
Liquid level over full controller Download PDFInfo
- Publication number
- CN2177228Y CN2177228Y CN 93229495 CN93229495U CN2177228Y CN 2177228 Y CN2177228 Y CN 2177228Y CN 93229495 CN93229495 CN 93229495 CN 93229495 U CN93229495 U CN 93229495U CN 2177228 Y CN2177228 Y CN 2177228Y
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- CN
- China
- Prior art keywords
- resistance
- circuit
- triode
- liquid level
- reverser
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- 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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- Control Of Non-Electrical Variables (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a liquid level over full controller which is characterized in that a sensor with n electrodes is installed in a tank, and a resistance is formed between the electrodes and the tank by medium. A voltage divider is formed by the resistance and the resistance of the input end of the corresponding electrode, and the output end of the resistance is connected with a reverser. The output end of the reverser is connected with a light emitting circuit. The number of the branch circuits is n, and a control circuit is in the branch circuit number n minus one. An alarm circuit is in the branch circuit number n. The utility model has the advantages of obvious enhancement of reliability, liquid level display at any time and can give an alarm and automatically cut off power to stop when the liquid is full.
Description
The utility model relates to a kind of environmental sanitation special car---the full controller of liquid level newspaper on the vacuum cleaning truck.
The special car of environmental sanitation department---on the vacuum cleaning truck, liquid level newspaper full-state control device must be installed, otherwise soiling solution can overflow outside the car, or enter in the vacuum pump.Liquid level newspaper full-state control device mainly contains three kinds at present: a kind of is the full device of float-type newspaper, and it is to utilize the float in the soiling solution to report to the police.Because its mechanism all is immersed in the liquid, in case get rusty, entire mechanism is ineffective, so its life-span is extremely short, poor reliability.Second kind is that a metal electrode is installed on tank body top, when the electrode contact liq, form electric current and report to the police in the alarm loop, this alarm needs certain electric current to work, as the soiling solution of medium, its concentration has very big influence to the size of the electric current of generation, and change at any time as the concentration of the soiling solution of medium, influence reliability, and service time is long, the length of electrode also changes, and makes it to work reliably.The third is a condenser type, and its shortcoming is that the concentration change of medium soiling solution is too big, and its sensitivity always need be adjusted, and bothers very much, and the time has been grown and can't use.
The purpose of this utility model provides a kind of full controller of liquid level newspaper that can avoid above-mentioned deficiency.
The purpose of this utility model is achieved in that installs a sensor in tank body, n electrode arranged above it, row number from bottom to top is 1,2 ... n-1, n, between electrode and the tank body by medium form a resistance R 1 ', the input pickup resistance R1 of it and respective electrode forms voltage divider, its output termination reverser IC, the output terminal sending and receiving optical circuit of reverser IC1, illuminating circuit is to be composed in series by resistance R 2 and LED, total n of above-mentioned branch road, wherein:
(1), on the n-1 branch road, control circuit is in parallel with illuminating circuit, and the composition of control circuit is: the base stage connecting resistance R4 of triode BG3, grounded emitter, collector connecting relay J, its normally closed contact J1 are serially connected in the loop of car engine ignition coil;
(2), in the n branch road, warning circuit is in parallel with illuminating circuit, and the composition of warning circuit is: the base stage connecting resistance R2 of triode BG1, and emitter connects the trigger end of Music Clip IC2, the base stage of the output termination triode BG2 of IC2, the collector of triode BG2 connects loudspeaker.
Principle of work is: when a certain electrode touched medium, reverser IC1 input end was by high step-down, and its output terminal is uprised by low, lumination of light emitting diode, show liquid level, when the n-1 electrode touched medium, the output terminal of reverser was uprised by low, triode BG3 conducting, the actuating of relay, its normally closed node is opened, and cuts off the car engine ignition wire loop, vacuum pump quits work, and suction-type sewer scavenger stops soil pick-up; When the n electrode touched medium, the output terminal of reverser was a noble potential, two equal conductings of triode BG1, BG2, and the loudspeaker warning that pipes, liquid is full.
The utility model compared with prior art, the influence that it is changed by concentration of medium is less, so its reliability is significantly improved, it has and shows liquid level at any time in addition, hydroful is reported to the police, the function that hydroful cuts off the power supply automatically and shuts down is very easy to the user.
Further specify the utility model below in conjunction with accompanying drawing.
Accompanying drawing is an electrical schematic diagram of the present utility model.
In present embodiment, n=5.
A sensor is installed in tank body, 5 electrodes are arranged above it, row number from bottom to top is 1,2 ... 5, between electrode and the tank body by medium form a resistance R 1 ', the input pickup resistance R1 of it and respective electrode forms voltage divider, its output termination reverser IC, the output terminal sending and receiving optical circuit of reverser IC1, illuminating circuit is to be composed in series by resistance R 2 and LED, wherein:
(1), on the 4-1 branch road, control circuit is in parallel with illuminating circuit, and the composition of control circuit is: the base stage connecting resistance R4 of triode BG3, grounded emitter, collector connecting relay J, its normally closed contact J1 are serially connected in the loop of car engine ignition coil;
(2), in No. 5 branch roads, warning circuit is in parallel with illuminating circuit, and the composition of warning circuit is: the base stage connecting resistance R3 of triode BG, and emitter connects the trigger end of Music Clip IC2, the base stage of the output termination triode BG2 of IC2, the collector of triode BG2 connects loudspeaker.
Principle of work is: when a certain electrode touches medium, reverser IC1 input end is by high step-down, and its output terminal uprises lumination of light emitting diode by low, show liquid level, when No. 4 electrodes touched medium, the output terminal of reverser uprised triode BG3 conducting by low, the actuating of relay, its normally closed node is opened, and cuts off the car engine ignition wire loop, and vacuum pump quits work; When No. 5 electrodes touched medium, the output terminal of reverser was a noble potential, two equal conductings of triode BG1, BG2, and the loudspeaker warning that pipes, liquid is full.
Claims (2)
1, the full controller of a kind of liquid level newspaper, it is characterized in that: a sensor is installed in tank body, n electrode arranged above it, and row number from bottom to top is 1,2 ... n-1, n, between electrode and the tank body by medium form a resistance R 1 ', the input pickup resistance R1 of it and respective electrode forms voltage divider, its output termination reverser IC, the output terminal sending and receiving optical circuit of reverser IC1, illuminating circuit is to be composed in series by resistance and LED, total n of above-mentioned branch road, wherein:
(1), on the n-1 branch road, control circuit is in parallel with illuminating circuit, the composition of control circuit is: the base stage connecting resistance R4 of triode BG3, grounded emitter, collector connecting relay J, its normally closed contact J1 are serially connected in the loop of car engine ignition coil;
(2), in the n branch road, warning circuit is in parallel with illuminating circuit, and the composition of warning circuit is: the base stage connecting resistance R3 of triode BG1, and emitter connects the trigger end of Music Clip IC2, the base stage of the output termination triode BG2 of IC2, the collector of triode BG2 connects loudspeaker.
2, the full controller of liquid level newspaper according to claim 1 is characterized in that: described n=5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229495 CN2177228Y (en) | 1993-10-19 | 1993-10-19 | Liquid level over full controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229495 CN2177228Y (en) | 1993-10-19 | 1993-10-19 | Liquid level over full controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177228Y true CN2177228Y (en) | 1994-09-14 |
Family
ID=33806348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93229495 Expired - Fee Related CN2177228Y (en) | 1993-10-19 | 1993-10-19 | Liquid level over full controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177228Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061406A (en) * | 2012-12-31 | 2013-04-24 | 青特集团有限公司 | Load upper limit warning device of suction sewage truck |
| CN103615235A (en) * | 2013-11-29 | 2014-03-05 | 北京金自天正智能控制股份有限公司 | Method for real-time measuring and monitoring of liquid level of dissolving cavity of sylvite solid ore drill well through water-dissolving method |
| CN104481734A (en) * | 2014-11-06 | 2015-04-01 | 北京控制工程研究所 | Full-liquid displaying device for filling propellant for satellite |
-
1993
- 1993-10-19 CN CN 93229495 patent/CN2177228Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061406A (en) * | 2012-12-31 | 2013-04-24 | 青特集团有限公司 | Load upper limit warning device of suction sewage truck |
| CN103615235A (en) * | 2013-11-29 | 2014-03-05 | 北京金自天正智能控制股份有限公司 | Method for real-time measuring and monitoring of liquid level of dissolving cavity of sylvite solid ore drill well through water-dissolving method |
| CN103615235B (en) * | 2013-11-29 | 2016-07-06 | 北京金自天正智能控制股份有限公司 | The method that a kind of potassium salt solid mineral drilling solution method molten chamber liquid level measures supervision in real time |
| CN104481734A (en) * | 2014-11-06 | 2015-04-01 | 北京控制工程研究所 | Full-liquid displaying device for filling propellant for satellite |
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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 |