CN201731912U - Level check device - Google Patents
Level check device Download PDFInfo
- Publication number
- CN201731912U CN201731912U CN2010202272328U CN201020227232U CN201731912U CN 201731912 U CN201731912 U CN 201731912U CN 2010202272328 U CN2010202272328 U CN 2010202272328U CN 201020227232 U CN201020227232 U CN 201020227232U CN 201731912 U CN201731912 U CN 201731912U
- Authority
- CN
- China
- Prior art keywords
- level
- signal
- alarm
- unit
- detecting device
- 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
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a level check device, which comprises a casing, a level sensor, a processing unit, a display unit, an alarm unit and a power supply unit. An ultrasonic level check device, which can display the level, can detect the high-low level and can adjust the level alarming value, not only can convert an output level voltage signal into a level digital signal and display the level which is capable of being directly read but also can control the operation of an alarm relay by comparing the level output signal with a set value of a comparator so as to alarm for high and low levels. The utility model has the advantages of convenient use, low cost, small check error and high reliability, and realizes the automatic feeding closed-loop control, thereby achieving the purpose.
Description
Technical field
The utility model relates to a kind of material-level detecting device.
Background technology
What be used for the material level detection at present generally is the mechanical type level-sensing device, by measure the position of material with contact pilot relay action, it is big that it detects error, reliability is bad, and the dumb phenomenon such as unreliable of action appears in long-time use the easily, and only can detect single material level, if change the material level detection position, need adjust the mechanical type level-sensing device, use very inconveniently, and not have the demonstration of controlling level.
Summary of the invention
The purpose of this utility model just provides a kind of dependable performance, and is easy to operate, can show material level, can detect height material level and material-level detecting device with low cost.
For realizing above-mentioned effect, technical solutions of the utility model are as follows:
A kind of material-level detecting device comprises housing, it is characterized in that, also comprises:
Be used to detect the level sensor of material level signal;
Be connected with level sensor, be used to the processing unit that receives the material level signal and handle;
Be connected with processing unit, be used to show the display unit of current material level information;
Be connected with processing unit and compare the alarm unit of reporting to the police with the upper lower limit value of the material level of setting; And
Power supply unit for level sensor, processing unit, display unit and alarm unit power supply.
In an embodiment of the present utility model, described processing unit comprises that a signal amplifies and the electric current and voltage modular converter, described signal amplifies and the input end of electric current and voltage modular converter is connected with the signal output part of described level sensor, the current signal of the output terminal output material level information of described signal amplification and electric current and voltage modular converter.
In an embodiment of the present utility model, described display unit comprises A/D converter, decoder driver and display tube, described A/D converter, decoder driver and display tube are connected mutually successively, and the signal input part of described A/D converter is connected with the signal output part of described level sensor.
In an embodiment of the present utility model, described alarm unit comprises the low alarm unit that hangs down the material level warning and carries out the full level alarm unit that high charge level is reported to the police that the signal input part of described low alarm unit is connected with the signal output part of described level sensor respectively with the signal input part of full level alarm unit.
Further, described low alarm unit comprises comparer, electronic switch and low material level alarm relay, described comparer, electronic switch and low material level alarm relay are connected mutually successively, the input end of described comparer is connected with potentiometer with the signal output part of described level sensor respectively, the output terminal output alarm signal of described low material level alarm relay.
Further, described full level alarm unit comprises comparer, electronic switch and high charge level alarm relay, described comparer, electronic switch and high charge level alarm relay are connected mutually successively, the input end of described comparer is connected with potentiometer with the signal output part of described level sensor respectively, the output terminal output alarm signal of described high charge level alarm relay.
In an embodiment of the present utility model, described power supply unit comprises power transformer, commutation diode and DC/DC modular converter, described power transformer is connected to commutation diode, and the output terminal of described commutation diode connects DC/DC modular converter, the output terminal of DC/DC modular converter.
Material-level detecting device of the present utility model can show the controlling level of feed bin intuitively, adjusts height material level alarming value easily, and easy to install, and good operating stability is with low cost, can replace the mechanical type level-sensing device, realizes the purpose of utility model.
Description of drawings
Fig. 1 is the circuit diagram of material-level detecting device of the present utility model.
Fig. 2 is a theory diagram of the present utility model.
Below in conjunction with embodiment the utility model is described.
Embodiment
Embodiment 1
As shown in Figure 1 and Figure 2, material-level detecting device of the present utility model comprises housing; Be used to detect the level sensor LW of material level signal, level sensor LW connects power input terminal 3, material level signal output terminal 4 and ground terminal 5; LW is connected with level sensor, the processing unit 100 that is used to receive the material level signal and handles; Be connected with processing unit 100, be used to show the display unit 200 of current material level information; The alarm unit 300 that is connected with processing unit 100 and compares and report to the police with the upper lower limit value of the material level of setting; And be the power supply unit 400 of level sensor LW, processing unit 100, display unit 200 and alarm unit 300 power supplies.
In the present embodiment, processing unit 100 comprises that a signal amplifies and electric current and voltage modular converter A2, described signal amplifies and the input end of electric current and voltage modular converter A2 is connected with the signal output part of described level sensor LW, the current signal of the output material level information of described signal amplification and electric current and voltage modular converter A2.
In the present embodiment, described display unit 200 comprises A/D converter A3, decoder driver A5 and display tube A6, described A/D converter A3, decoder driver A5 are connected mutually successively with display tube A6, and the signal input part of described A/D converter A3 is connected with the signal output part of described level sensor LW.
In the present embodiment, described alarm unit 300 comprises the low alarm unit that hangs down the material level warning and carries out the full level alarm unit that high charge level is reported to the police that the signal input part of described low alarm unit is connected with the signal output part of described level sensor LW respectively with the signal input part of full level alarm unit.
Described low alarm unit comprises comparer A8, electronic switch A9 and low material level alarm relay K1, described comparer A8, electronic switch A9 is connected mutually successively with low material level alarm relay K1, the input end of described comparer has two, be connected the output terminal output alarm signal of described low material level alarm relay with potentiometer W2 with the signal output part of described level sensor LW respectively.
Described full level alarm unit comprises comparer A4, electronic switch A7 and high charge level alarm relay K2, described comparer A4, electronic switch A7 is connected mutually successively with high charge level alarm relay K2, the input end of described comparer has two, be connected the output terminal output alarm signal of described high charge level alarm relay with potentiometer W1 with the signal output part of described level sensor LW respectively.
In the present embodiment, described power supply unit 400 comprises the AC220V power supply, power transformer T1, commutation diode D1, DC/DC modular converter A1, described AC220V power supply connects power transformer T1, is connected to commutation diode D1 after step-down, the output terminal of described commutation diode D1 connects DC/DC modular converter A1, and the output terminal of DC/DC modular converter A1 connects level sensor LW, processing unit 100, display unit 200 and alarm unit 300 respectively.
The level sensor LW of material-level detecting device of the present utility model adopts ultrasonic probe, power supply is AC220V, by terminal 1,2 inputs, after power transformer T1 step-down, be DC30V through commutation diode D1 output VCC voltage, pass through DC/DC modular converter A1 again, convert DC24V voltage to as the device working power, output terminal at DC/DC modular converter A1 is connected with LED 1, and LED 1 is the power supply indication, and power supply is just often bright.
The material level signal is by the voltage of a 0～10V of level sensor LW output, output terminal through level sensor LW amplifies, amplify and voltage current transformation modules A 2 is converted into the material level signal of 4～20mA electric current through signal, through signal output terminal 12 outputs, the corresponding material level degree of depth is 20 meters during output 20mA electric current.
The signal of level sensor LW becomes digital signal through A/D converter A3 simultaneously, through decoder driver A5, drives the actual value that charactron A6 shows material level.
The output signal of level sensor LW is input to comparer A8, regulate low material level alarming value by potentiometer W2, comparer A8 output terminal is connected to the input end of electronic switch A9, electronic switch A9 drives low material level alarm relay K1 action, the output terminal splicing ear 9,10,11 of low material level alarm relay K1, output alarm signal; Be connected with LED 2 on the output terminal of low material level alarm relay K1, minimum material level point of adjustment is 1m, and LED 2 is low material level alarm indication.
The output signal of level sensor LW is input to comparer A4, regulate the high charge level alarming value by potentiometer W1, comparer A4 output terminal is connected to the input end of electronic switch A7, electronic switch A7 drives high charge level alarm relay K2 action, the output terminal splicing ear 6,7,8 of high charge level alarm relay K2, output alarm signal; Be connected with LED 3 on the output terminal of high charge level alarm relay K2, high charge level point of adjustment is 20m, and LED 3 is the high charge level alarm indication.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. a material-level detecting device comprises housing, it is characterized in that, also comprises:
Be used to detect the level sensor of material level signal;
Be connected with level sensor, be used to the processing unit that receives the material level signal and handle;
Be connected with processing unit, be used to show the display unit of current material level information;
Be connected with processing unit and compare the alarm unit of reporting to the police with the upper lower limit value of the material level of setting; And
Power supply unit for level sensor, processing unit, display unit and alarm unit power supply.
2. material-level detecting device according to claim 1, it is characterized in that, described processing unit comprises that a signal amplifies and the electric current and voltage modular converter, described signal amplifies and the input end of electric current and voltage modular converter is connected with the signal output part of described level sensor, the current signal of the output terminal output material level information of described signal amplification and electric current and voltage modular converter.
3. material-level detecting device according to claim 1, it is characterized in that, described display unit comprises A/D converter, decoder driver and display tube, described A/D converter, decoder driver and display tube are connected mutually successively, and the signal input part of described A/D converter is connected with the signal output part of described level sensor.
4. material-level detecting device according to claim 1, it is characterized in that, described alarm unit comprises the low alarm unit that hangs down the material level warning and carries out the full level alarm unit that high charge level is reported to the police that the signal input part of described low alarm unit is connected with the signal output part of described level sensor respectively with the signal input part of full level alarm unit.
5. material-level detecting device according to claim 4, it is characterized in that, described low alarm unit comprises comparer, electronic switch and low material level alarm relay, described comparer, electronic switch and low material level alarm relay are connected mutually successively, the input end of described comparer is connected with potentiometer with the signal output part of described level sensor respectively, the output terminal output alarm signal of described low material level alarm relay.
6. material-level detecting device according to claim 4, it is characterized in that, described full level alarm unit comprises comparer, electronic switch and high charge level alarm relay, described comparer, electronic switch and high charge level alarm relay are connected mutually successively, the input end of described comparer is connected with potentiometer with the signal output part of described level sensor respectively, the output terminal output alarm signal of described high charge level alarm relay.
7. material-level detecting device according to claim 1, it is characterized in that, described power supply unit comprises power transformer, commutation diode and DC/DC modular converter, described power transformer is connected to commutation diode, the output terminal of described commutation diode connects DC/DC modular converter, the output terminal of DC/DC modular converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202272328U CN201731912U (en) | 2010-06-13 | 2010-06-13 | Level check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202272328U CN201731912U (en) | 2010-06-13 | 2010-06-13 | Level check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201731912U true CN201731912U (en) | 2011-02-02 |
Family
ID=43523070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202272328U Expired - Fee Related CN201731912U (en) | 2010-06-13 | 2010-06-13 | Level check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201731912U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968915A (en) * | 2014-05-28 | 2014-08-06 | 佛山市海天(高明)调味食品有限公司 | Movable type acousto-optic liquid-level alarm |
| CN104615023A (en) * | 2014-12-31 | 2015-05-13 | 重庆川仪自动化股份有限公司 | Intelligent setting method for level switch |
| CN105714652A (en) * | 2014-12-04 | 2016-06-29 | 陕西中大机械集团有限责任公司 | Paver material level adjustment device based on ultrasonic wave echo distance measurement |
-
2010
- 2010-06-13 CN CN2010202272328U patent/CN201731912U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968915A (en) * | 2014-05-28 | 2014-08-06 | 佛山市海天(高明)调味食品有限公司 | Movable type acousto-optic liquid-level alarm |
| CN105714652A (en) * | 2014-12-04 | 2016-06-29 | 陕西中大机械集团有限责任公司 | Paver material level adjustment device based on ultrasonic wave echo distance measurement |
| CN105714652B (en) * | 2014-12-04 | 2017-09-19 | 陕西中大机械集团有限责任公司 | A kind of paver material position adjusting means based on ultrasonic echo ranging |
| CN104615023A (en) * | 2014-12-31 | 2015-05-13 | 重庆川仪自动化股份有限公司 | Intelligent setting method for level switch |
| CN104615023B (en) * | 2014-12-31 | 2018-04-27 | 重庆川仪自动化股份有限公司 | Intelligent setting method for level switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201731912U (en) | Level check device | |
| CN103457232A (en) | Short-circuit protection circuit of direct-current load and illuminator | |
| CN103336235A (en) | IGBT condition detection circuit | |
| CN103208782A (en) | Comprehensive detection and electric protection device for power frequency and variable frequency power supplies | |
| CN103050092A (en) | Protective circuit of backlight driving circuit, backlight module and crystal liquid display device | |
| CN101873063B (en) | Frequency voltage switching circuit and multi-gear frequency voltage switching method | |
| CN202563046U (en) | Fuse burnout alarm device | |
| CN101989118A (en) | Voltage monitoring device | |
| CN203982550U (en) | Multi-functional carbon monoxide detecting alarm | |
| CN103411883A (en) | Methane detection warning instrument | |
| CN202928715U (en) | Temperature transmitter with self-detecting function | |
| CN203838276U (en) | Low-voltage DC load circuit-break monitoring circuit | |
| CN202903766U (en) | Intelligent type fixed gas detection instrument | |
| CN204086191U (en) | Humidity measuring circuit | |
| CN201732110U (en) | Multimeter | |
| CN209803582U (en) | Intelligent switch socket control system | |
| CN204102283U (en) | A kind of fluid path obstruction alarm device of automatic clinical chemistry analyzer | |
| CN204332038U (en) | A kind of can the electric fire monitoring device of monitor temperature sensor connection status | |
| CN109725571B (en) | Display and control circuit and device thereof | |
| CN201731890U (en) | Novel proximity sensor | |
| CN203835691U (en) | Air pump automatic control device | |
| CN202522366U (en) | Automatic audible and visual alarm type pressure gauge | |
| CN110867825A (en) | Overvoltage protection circuit of constant power output power supply | |
| CN211791245U (en) | Switching power supply overload alarm circuit and switching power supply | |
| CN204945257U (en) | A kind of electrical equipment pick-up unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20160613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |