CN102426045A - Damped sensor for detecting oil quantity of oil tank - Google Patents
Damped sensor for detecting oil quantity of oil tank Download PDFInfo
- Publication number
- CN102426045A CN102426045A CN2011102464153A CN201110246415A CN102426045A CN 102426045 A CN102426045 A CN 102426045A CN 2011102464153 A CN2011102464153 A CN 2011102464153A CN 201110246415 A CN201110246415 A CN 201110246415A CN 102426045 A CN102426045 A CN 102426045A
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- measuring tube
- sensor
- damping fin
- spring
- ball float
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Abstract
The invention discloses a damped sensor for detecting the oil quantity of an oil tank. The damped sensor is provided with a measuring tube (1), wherein a fixed end (2) and a wiring terminal (3) are arranged at the upper end of the measuring tube (1); a magnetic floating fall (4) is sleeved outside the measuring tube (1); the lower part of the magnetic floating ball (4) is connected with a damping fin (6) through a spring (5); and the spring (5) and the damping fin (6) are respectively sleeved outside the measuring tube. According to the damped sensor disclosed by the invention, the transient impact force of the liquid level for the magnetic floating ball during shake in a wide range can be effectively relived; the locking or damaging of the magnetic floating ball is avoided; the service life of the sensor is prolonged (can reach about one year); the loss and the cost are reduced; the detection precision of the oil quantity is increased; and the reliable detection of the oil quantity of locomotives such as forklift trucks and the like in a work state is realized.
Description
Technical field
The present invention relates to a kind of fuel tank fuel quantity detecting sensor, especially a kind of increasing the service life, the damp type fuel tank fuel quantity detecting sensor of raising oil mass accuracy of detection.
Background technology
At present, known motor vehicle oil tank oil mass pick-up unit has multiple version, and the float-ball type liquid level gauge is wherein a kind of.The detecting sensor of existing float-ball type liquid level gauge all has measuring tube; In the measuring tube from top to bottom the diverse location place a plurality of tongue tubes are installed; Be useful on fixedly termination of installing and being sealed on the fuel tank and the transmitter that joins with tongue tube, connection terminal etc. in the upper end of measuring tube, outside measuring tube, be socketed with the magnetic ball float.When the magnetic ball float fluctuates with liquid level change; Magnetic coupling interaction makes the contact adhesive or the disconnection of the tongue tube on the relevant position; The all-in resistance (or voltage) of sensor is changed, and resistance (or voltage) conversion of signals after will being changed by transmitter again becomes the current signal of 4 ~ 20mA to export measurement instrument to by connection terminal.Under the motor vehicle normal operating condition, compare with other fuel tank fuel quantity pick-up units, the float-ball type liquid level gauge has simple in structure, and debugging is convenient, good reliability, characteristics such as precision height.But if be installed on the fuel tank such as work under bad environment such as industrial lift truck (frequently advance, retreat, lift and transfer), then the magnetic ball float also can rock up and down along with liquid level in the fuel tank significantly.The instant impact that produces when ultra scope is rocked often causes the stuck or damage of magnetic ball float, not only causes sensor serviceable life short (only about month), and cost strengthens, and has a strong impact on the accuracy rate of detection, can't truly reflect the actual oil mass of fuel tank.
Summary of the invention
The present invention is in order to solve the above-mentioned technical matters of existing in prior technology, to provide a kind of and increase the service life, improving the damp type fuel tank fuel quantity detecting sensor of oil mass accuracy of detection.
Technical solution of the present invention is: a kind of damp type fuel tank fuel quantity detecting sensor; Measuring tube is arranged; There are fixedly termination and connection terminal in the upper end of measuring tube; Outside said measuring tube, be socketed with the magnetic ball float, join through spring and damping fin below the said magnetic ball float, spring and damping fin all are socketed in outside the measuring tube.
Said damping fin is circular, and diameter equates that with the magnetic floating ball diameter weight and magnetic ball float volume ratio are 1 milligram: 1 cubic millimeter.
Set spring and the damping fin below the magnetic ball float of the present invention; The instant impact that in the time of can effectively alleviating liquid level and rock on a large scale the magnetic ball float is produced avoids the magnetic ball float stuck or damage, and has both prolonged the serviceable life (can reach about 1 year) of sensor; Reduced loss; Reduced cost, also improved the oil mass accuracy of detection, the oil mass reliable detection under the motor vehicle duties such as realization fork truck.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
Below with accompanying drawings embodiment of the present invention.As shown in Figure 1: same with the prior art county; Measuring tube 1 is arranged; There are fixedly termination 2 and connection terminal 3 in the upper end of measuring tube 1; Outside said measuring tube 1, be socketed with magnetic ball float 4, below prior art different is said magnetic ball float 4, join through spring 5 and damping fin 6, spring 5 all is socketed in outside the measuring tube 1 with damping fin 6.The number of coils of spring 5=3, material diameter 0.6mm, material is a carbon spring steel wires II a group, free height and axial line and two ends circle verticality precision are 2 grades.Damping fin (6) is processed by EPDM (ethylene-propylene-diene rubber), is preferably circle and diameter and magnetic ball float 4 equal diameters, and weight and magnetic ball float 4 volume ratios are preferably 1 milligram: 1 cubic millimeter.
Claims (2)
1. damp type fuel tank fuel quantity detecting sensor; Measuring tube (1) is arranged; There are fixedly termination (2) and connection terminal (3) in the upper end of measuring tube (1); Outside said measuring tube (1), be socketed with magnetic ball float (4), it is characterized in that: join through spring (5) and damping fin (6) below the said magnetic ball float (4), spring (5) all is socketed in outside the measuring tube (1) with damping fin (6).
2. damp type fuel tank fuel quantity detecting sensor according to claim 1 is characterized in that: said damping fin (6) is circle, diameter and magnetic ball float (4) equal diameters, and weight and magnetic ball float (4) volume ratio are 1 milligram: 1 cubic millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102464153A CN102426045A (en) | 2011-08-25 | 2011-08-25 | Damped sensor for detecting oil quantity of oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102464153A CN102426045A (en) | 2011-08-25 | 2011-08-25 | Damped sensor for detecting oil quantity of oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102426045A true CN102426045A (en) | 2012-04-25 |
Family
ID=45960049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102464153A Pending CN102426045A (en) | 2011-08-25 | 2011-08-25 | Damped sensor for detecting oil quantity of oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102426045A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033239A (en) * | 2012-12-19 | 2013-04-10 | 华润电力登封有限公司 | Float level gauge applied in measurement of level of residue slurry with great measured level fluctuation |
| CN108007525A (en) * | 2017-12-26 | 2018-05-08 | 潍柴动力股份有限公司 | A kind of level monitoring device and vehicle fuel level monitor system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2415348Y (en) * | 2000-03-22 | 2001-01-17 | 锦西化工机械厂 | Magnetic liquid level meter |
| CN2445304Y (en) * | 2000-09-30 | 2001-08-29 | 中国石油天然气股份有限公司乌鲁木齐石化分公司 | Portable liquid level indicator |
| CN2545581Y (en) * | 2002-06-04 | 2003-04-16 | 景步田 | Improved portable liquid level observer |
| JP2006029805A (en) * | 2004-07-12 | 2006-02-02 | Hitachi Ltd | Liquid level detector |
| CN101067569A (en) * | 2007-06-07 | 2007-11-07 | 徐晗 | Long-distance vehicular metering monitor |
-
2011
- 2011-08-25 CN CN2011102464153A patent/CN102426045A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2415348Y (en) * | 2000-03-22 | 2001-01-17 | 锦西化工机械厂 | Magnetic liquid level meter |
| CN2445304Y (en) * | 2000-09-30 | 2001-08-29 | 中国石油天然气股份有限公司乌鲁木齐石化分公司 | Portable liquid level indicator |
| CN2545581Y (en) * | 2002-06-04 | 2003-04-16 | 景步田 | Improved portable liquid level observer |
| JP2006029805A (en) * | 2004-07-12 | 2006-02-02 | Hitachi Ltd | Liquid level detector |
| CN101067569A (en) * | 2007-06-07 | 2007-11-07 | 徐晗 | Long-distance vehicular metering monitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033239A (en) * | 2012-12-19 | 2013-04-10 | 华润电力登封有限公司 | Float level gauge applied in measurement of level of residue slurry with great measured level fluctuation |
| CN108007525A (en) * | 2017-12-26 | 2018-05-08 | 潍柴动力股份有限公司 | A kind of level monitoring device and vehicle fuel level monitor system |
| CN108007525B (en) * | 2017-12-26 | 2021-06-22 | 潍柴动力股份有限公司 | Liquid level monitoring device and vehicle oil level monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qin Chuyang Inventor after: Feng Yujun Inventor before: Qin Chuyang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: QIN CHUYANG TO: QIN CHUYANG FENG YUJUN |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |