CN202083441U - Magnetic liquid level sensor - Google Patents
Magnetic liquid level sensor Download PDFInfo
- Publication number
- CN202083441U CN202083441U CN2011201927083U CN201120192708U CN202083441U CN 202083441 U CN202083441 U CN 202083441U CN 2011201927083 U CN2011201927083 U CN 2011201927083U CN 201120192708 U CN201120192708 U CN 201120192708U CN 202083441 U CN202083441 U CN 202083441U
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- CN
- China
- Prior art keywords
- shell body
- magnet
- liquid level
- level sensor
- gear
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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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Abstract
The utility model discloses a magnetic liquid level sensor. The magnetic liquid level sensor comprises a floater, a shell body, a Hall device and a magnet, and is characterized in that: a gear rack is arranged below the lower end face of the shell body, is vertical to the lower end face, and can move up and down, the magnet is arranged at the upper end of the gear rack, and the Hall device is arranged in the shell body at a position corresponding to the magnet; a semi-gear oscillating member is adopted, and gear teeth of the semi-gear oscillating member are meshed with the gear rack; the floater is connected with an oscillating bar of the semi-gear oscillating member; and a bracket is arranged on the lower end face of the shell body, a sliding groove is arranged on the bracket, and matched with the gear rack, and the semi-gear oscillating member is fixedly arranged on the bracket in a rotating manner through a pin. For the magnetic liquid level sensor, the monitoring scope is larger, a liquid level pipe is cancelled, and only the connection length of the floater and the semi-gear oscillating member is adjusted for tank bodies of different sizes, thereby being simple and convenient in adjustment and having wide adaptability; only one pole of the magnet is utilized, so that the mutual influence of the south pole and the north pole of the magnet on magnetic field intensity is avoided; the magnetic liquid level sensor can correctly output signals, and has good safety, no blind spots, and the advantages that the service life is long and the maintenance is not required.
Description
Technical field
The utility model relates to the device of level monitoring, especially a kind of magnetic level sensor that is used for automobile, motorcycle tank, water tank, water tower etc.
Background technology
Existing magnetic level sensor, comprise float, shell body, magnet, hall device or magnetosensitive device, generally all be provided with liquid level tube, magnet and float are affixed to be arranged in the liquid level tube, hall device or magnetosensitive device are arranged on the differing heights of liquid level tube, when float drive magnet in liquid level tube along with liquid surface lifting during to different height, corresponding hall device or magnetosensitive device are output signal.The liquid level sensor of this structure is owing to the south poles of magnet interacts, there is the dead angle, magnetic field, the easy output error signal of hall device or magnetosensitive device, cause the erroneous judgement of liquid level, the blind area is arranged, accuracy is lower, security is not high, and the adjusting of the height of liquid level tube is difficult, and the adaptability of magnetic level sensor is relatively poor.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and provide that a kind of output signal is accurate, safe, the magnetic level sensor of linear change, non-blind area, wide adaptability.
The purpose of this utility model is to realize by following technical scheme:
A kind of magnetic level sensor comprises float, shell body, hall device and magnet, unlike the prior art be:
The below of shell body lower surface is provided with the tooth bar that move up and down vertical with the lower surface, and magnet is arranged on the upper end of tooth bar, and hall device is arranged in the shell body and the magnet corresponding section;
Be provided with half gearing spare, the gear teeth of half gearing spare and tooth bar engagement;
Float is connected with the fork of half gearing spare.
The lower surface of described shell body is provided with support, and support is provided with the chute vertical with the shell body lower surface and tooth bar is equipped, and half gearing spare is packed on the support by pin is rotatable.
Also be provided with amplifying circuit and be connected with hall device, amplifying circuit is arranged in the shell body.
The lower side of described shell body is provided with screw thread, and the middle part is provided with boss, and the lower surface of boss is provided with groove, is provided with adaptive with it O RunddichtringO in the groove.
Adopt above-mentioned technical scheme, float drives half gearing spare with the height change of liquid level, half gearing spare drives tooth bar and makes rectilinear motion up and down, change the distance of magnet and hall device, thereby the power of the magnetic field intensity that the change hall device is sensed, hall device amplifies voltage according to the voltage of a faint variation of the strong and weak output in magnetic field through amplifying circuit, thereby measures the height of liquid level according to the variation of voltage.
The maximum functional angle of fork is 100o in the half gearing spare, and monitoring range is bigger; Cancelled liquid level tube, the tank bodies of different sizes only need be regulated the length that is connected of float and half gearing spare, regulate easy, wide adaptability; Only utilized a utmost point of magnet, the south poles of having avoided magnet influences each other to magnetic field intensity, and output signal is accurate, safe, non-blind area, also has long, non-maintaining advantage of life-span simultaneously.
Description of drawings
Fig. 1 is the structural representation of embodiment.
Among the figure, 1. shell body 2. floats 3. hall devices 4. magnet 5. supports 6. tooth bars 7. half gearing spares 8. boss 9. screw threads 10. amplifying circuits 11. connecting links 12. groove 13.O RunddichtringOs.
Embodiment
Below in conjunction with drawings and Examples the utility model content is further elaborated, but is not qualification of the present utility model.
Embodiment:
With reference to Fig. 1, a kind of magnetic level sensor, comprise float 2, shell body 1, hall device 3 and magnet 4, the below of shell body 1 lower surface is provided with the tooth bar that move up and down 6 vertical with the lower surface, magnet 4 is arranged on the upper end of tooth bar 6, and hall device 3 is arranged in the shell body 1 and magnet 4 corresponding sections;
Be provided with the gear teeth and tooth bar 6 engagements of half gearing spare, 7, half gearing spares 7;
Float 2 is connected with the fork of half gearing spare 7.
The lower surface of shell body 1 is provided with support 5, and support 5 is provided with the chute vertical with shell body 1 lower surface and tooth bar 6 is equipped, to guarantee that tooth bar 6 can move up and down.
For adapting to the liquid level of different depth, adjusting length is more convenient, and float 2 is connected with the fork of half gearing spare 7 by connecting link 11, regulates the length that length only need change connecting link 11.
Be provided with amplifying circuit 10 and be connected with hall device 3, amplifying circuit 10 is arranged in the shell body 1, and amplifying circuit 10 can make output signal obtain amplifying, and prevents to be subject to a little less than output signal too to disturb.
The lower side of shell body 1 is provided with screw thread 9, and the middle part is provided with boss 8, and the lower surface of boss 8 is provided with groove 12, is provided with adaptive with it O RunddichtringO 13 in the groove 12, make this sensor by screw thread 9 with measured body better tightness fixedly the time.
Claims (4)
1. a magnetic level sensor comprises float, shell body, hall device and magnet, it is characterized in that:
The below of shell body lower surface is provided with the tooth bar that move up and down vertical with the lower surface, and magnet is arranged on the upper end of tooth bar, and hall device is arranged in the shell body and the magnet corresponding section;
Be provided with half gearing spare, the gear teeth of half gearing spare and tooth bar engagement;
Float is connected with the fork of half gearing spare.
2. magnetic level sensor according to claim 1, it is characterized in that: the lower surface of described shell body is provided with support, support is provided with the chute vertical with the shell body lower surface and tooth bar is equipped, and half gearing spare is packed on the support by pin is rotatable.
3. magnetic level sensor according to claim 1 is characterized in that: also be provided with amplifying circuit and be connected with hall device, amplifying circuit is arranged in the shell body.
4. magnetic level sensor according to claim 1 is characterized in that: the lower side of described shell body is provided with screw thread, and the middle part is provided with boss, and the lower surface of boss is provided with groove, is provided with adaptive with it O RunddichtringO in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201927083U CN202083441U (en) | 2011-06-09 | 2011-06-09 | Magnetic liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201927083U CN202083441U (en) | 2011-06-09 | 2011-06-09 | Magnetic liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083441U true CN202083441U (en) | 2011-12-21 |
Family
ID=45344067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201927083U Expired - Fee Related CN202083441U (en) | 2011-06-09 | 2011-06-09 | Magnetic liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202083441U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369530A (en) * | 2017-06-29 | 2017-11-21 | 广东电网有限责任公司佛山供电局 | A kind of oil conservator used for transformer capsule breakage monitoring device |
| CN107764371A (en) * | 2016-08-22 | 2018-03-06 | 荆门宏图延晟机械制造有限公司 | Side-mounted liquid level gauge with machinery sensing device synchronous with electronic signal |
| CN115103739A (en) * | 2020-02-17 | 2022-09-23 | 株式会社牧田 | Electric tool |
-
2011
- 2011-06-09 CN CN2011201927083U patent/CN202083441U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764371A (en) * | 2016-08-22 | 2018-03-06 | 荆门宏图延晟机械制造有限公司 | Side-mounted liquid level gauge with machinery sensing device synchronous with electronic signal |
| CN107369530A (en) * | 2017-06-29 | 2017-11-21 | 广东电网有限责任公司佛山供电局 | A kind of oil conservator used for transformer capsule breakage monitoring device |
| CN115103739A (en) * | 2020-02-17 | 2022-09-23 | 株式会社牧田 | Electric tool |
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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: 20111221 Termination date: 20140609 |