CN101451873A - Digital displayer for vehicle fuel tank - Google Patents
Digital displayer for vehicle fuel tank Download PDFInfo
- Publication number
- CN101451873A CN101451873A CNA2008102497070A CN200810249707A CN101451873A CN 101451873 A CN101451873 A CN 101451873A CN A2008102497070 A CNA2008102497070 A CN A2008102497070A CN 200810249707 A CN200810249707 A CN 200810249707A CN 101451873 A CN101451873 A CN 101451873A
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- China
- Prior art keywords
- screw rod
- oil
- fuel tank
- screw
- nut
- 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.)
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- Level Indicators Using A Float (AREA)
Abstract
A digital display of a vehicle oil box in the invention comprises a control circuit, a mechanical transmission portion installed inside the oil box and the digital display installed inside a control cab; the mechanical transmission portion comprises an upper fixing plate and a lower fixing plate that are horizontal. A freely rotatable screw and two fixed slide bars at left and right sides are vertically installed between the two fixing plates. A horizontal floater connecting plate is simultaneously covered on the screw and the slide bars at left and right sides through three through holes of the own. The floater connecting plate is fixedly provided with a nut covered on the screw. The bottom of the nut is fixedly provided with an annular floater. The top of the screw is provided with a rotary regulation resistance. The control circuit comprises an adjusting circuit and an A/D (Analog-to-Digital) converting circuit. The digital display has the beneficial effects of convenient installation and maintenance, simple structure, low cost as well as high stability and reliability and oil charging amount and remaining amount can be accurately displayed so that a driver of vehicle can effectively supervise the oil charging amount of gas station and accurately know the remaining oil amount inside the oil box to charge oil in time.
Description
(1) technical field
The invention belongs to the automotive oil tank annex, particularly a kind of digital displayer for vehicle fuel tank.
(2) background technology
Fuel monitor on the existing vehicle mostly is pointer-type greatly, the float of installing in fuel tank drives the slide-changing resistor sampling and cooperates, though this structure is cheap, simple in structure easy for installation, but can not accurately demonstrate the oil mass in the fuel tank intuitively, opportunity is provided for indivedual refuelling stations, take multiple illegal means to refuel less to the client, because of the pointer fuel monitor of tradition can not accurately be found out volume read-out intuitively, can only "ball-park" estimate, so the client also has no way out, cause damage to the client.The pointer display of tradition can not be accurate, sees that intuitively the interior remaining oil mass of fuel tank and hundred kilometers real fuel consumption steam supply car drivers objectively estimate the performance of automobile and the potential faults of internal combustion engine.
(3) summary of the invention
The present invention provides the digital displayer for vehicle fuel tank of the accurate and visual demonstration volume read-out of a kind of energy, surplus in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
Digital displayer for vehicle fuel tank of the present invention, its special character is: comprise control circuit, be installed in the interior mechanical driving part of fuel tank, be installed in the digital indicator in the pilothouse; Mechanical driving part comprises the upper mounted plate and the bottom plate of level, be vertically installed with between two fixed heads screw rod free to rotate and about two fixing slide bars, the float connecting plate that one level arranged is enclosed within on screw rod and the left and right sides slide bar simultaneously by three through holes of self, be fixed with the nut that is enclosed within on the screw rod on the float connecting plate, the nut bottom is fixed with the float of an annular, and screw tip is equipped with a revolving potentiometer; Control circuit comprises adjusts circuit and A/D change-over circuit.
Digital displayer for vehicle fuel tank of the present invention, screw rod is mutual corresponding multi-step thread with the screw thread of nut.
The invention has the beneficial effects as follows, installation and maintenance are convenient, simple in structure, cheap, the reliability height, the accurate and visual demonstration volume read-out of energy, surplus, make the volume read-out of automobilist's energy effective supervision refuelling station, make it to do any means and lead the consumer into a trap, reach the purpose of fair trading, simultaneously can allow the driver know that accurately the Fuel Oil Remaining in the fuel tank in time refuels again, can also allow the driver objectively estimate hundred kilometers fuel consumption behind the running car certain hour, judge the performance of automobile and the potential faults of internal combustion engine.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.Fig. 2 is a circuit diagram of the present invention.
Among the figure, 1 fixed mount, 4 upper mounted plates, 5 fuel tanks, 7 screw rods, 8 nuts, 9 float connecting plates, 11 floats, 13 bottom plates, 15,6 slide bars, 2,14,19,20 screws, 16,12 metallic sheaths, 17 leads, 3,21 screws, R
tPotentiometer, IC, IC
1, IC
2, IC
3Voltage stabilizing module, IC
4The A/D modular converter, IC
5The numeral display module.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Digital displayer for vehicle fuel tank of the present invention comprises control circuit, is installed in the interior mechanical driving part of fuel tank, is installed in the digital indicator in the pilothouse; Mechanical driving part comprises the upper mounted plate 4 and the bottom plate 13 of level, be vertically installed with between two fixed heads screw rod free to rotate 7 and about two fixing slide bars 6,15, the float connecting plate 9 that one level arranged is enclosed within on screw rod and the left and right sides slide bar simultaneously by three through holes of self, be fixed with the nut 8 that is enclosed within on the screw rod 7 on the float connecting plate, nut 8 bottoms are fixed with the float 11 of an annular, and screw rod 7 tops are equipped with a revolving potentiometer R
tControl circuit comprises adjusts circuit and A/D change-over circuit.Screw rod 7 is mutual corresponding multi-step thread with the screw thread of nut 8.
This digital displayer for vehicle fuel tank has used float and bull Luo bar, nut, accurate frame resistance to match as the sampling probe of oil mass in the fuel tank, cooperate and adjust circuit, A/D change-over circuit, accurately intuitively the oil mass in the fuel tank is shown with digital indicator at last.
This digital displayer for vehicle fuel tank is fixed on the fuel tank 5 by screw 3,21.
Combined circuit schematic diagram of the present invention and sampling probe block diagram illustrating are as follows: in the circuit theory diagrams, and Voltage stabilizing module IC, IC
1, IC
2, IC
3, resistance R
1, R
2Form to adjust circuit, supply voltage behind Voltage stabilizing module IC voltage regulation filtering to circuit supply Voltage stabilizing module IC
1, IC
2Provide stable voltage, by Voltage stabilizing module IC
2, IC
3, resistance R
1, R
2The constant-current source circuit of forming is to measuring accurate wire-wound multi-turn variable potentiometer R
tProvide not with the current/voltage of load variations, guarantee to measure potentiometer R
tThe linearity of resistance/voltage transformation stable, be convenient to accurate measurement.Measure potentiometer R
tBe fixed on probe tip by fixed mount 1, measure potentiometer R
tBe connected with following screw rod 7.Probe is made up of upper mounted plate 4, bottom plate 13, slide bar 15, slide bar 6, float 11, float connecting plate 9, screw rod 7, nut 8.When injecting oil or running car oil supply in fuel tank 5, float 11 moves up or down.The nut 8 of superincumbent connecting plate 9 promote being installed simultaneously and being fixed on the connecting plate moves up and down under the guide effect of slide bar 15,6, also left rotation and right rotation under the effect of nut 8 of screw rod 7 in the time of motion.The left rotation and right rotation of screw rod 7 drives the multi-turn adjustable potentiometer R that is installed in the upper end simultaneously
tRotate.Potentiometer R
tRotation, changed inner resistance value, potentiometer connects other circuit components by lead 17, the voltage that B is ordered in the circuit theory diagrams is with potentiometer R
tThe variation of resistance and changing.
The voltage that changes is through A/D modular converter IC
4Be transformed into digital displaying signal through display module IC
5Demonstrate the magnitude of voltage of this moment with digital form.Reconcile resistance R
4The numerical value that makes demonstration is consistent with oil mass value in the fuel tank.The numerical value that shows has just been represented the oil mass in the fuel tank, and later float 11 promotes potentiometer R with how much rising or floating downward of oil by nut 8 screw rods 7
tChange resistance.The voltage that the B point produces is through digital display module IC
5The numerical value that shows is exactly the oil mass of oil in the fuel tank.Lead 17 is the connecting line that A, C are ordered in the circuit theory diagrams in the structural drawing.
Upper mounted plate 4 and bottom plate 13 all adopt high-strength steel sheet to process, screw rod 7 nuts 8 adopt the plastic injection-moulded manufacturing of oil resistance, can guarantee higher photodissociation face, nut 8 can be moved up and down at screw rod 7 easily, for the cooperation that improves nut 8 screw rods 7 is stablized, screw rod 7 adopts the multi-step thread manufacturing, and nut 8 cooperates with it.Slide bar 15,6 adopts cold group of high-strength stainless steel column to form, and two is fastening upper mounted plate 4 bottom plates 13 by screw 2,14,19,20, and the screw rod of installing in the middle of making 7 can steady operation.For screw rod 7 can be rotated preferably, be installed in the metallic sheath 16,12 consistent on upper mounted plate 4 and the bottom plate 13 with 7 one-tenth axle center of screw rod, all adopt the high-quality steel to process.Guarantee the reliable rotation and the serviceable life of screw rod 7.The float connecting plate 9 that is installed on slide bar 15 and 6 adopts the quality steel plate manufacturing, and the hard-wired float 11 in two ends adopts high-quality stainless steel or high-quality copper ball, guarantees serviceable life.The potentiometer 1 that install screw rod 7 upper ends adopts high-accuracy multi-turn coiling adjustable potentiometer, guarantees its accuracy and serviceable life, potentiometer R
tBe connected with welding manner with screw rod 7 upper ends, guarantee its reliability, upper mounted plate 4 and potentiometer R
tFixed mount 1 both sides correspondence leaves the convenient fourth of the twelve Earthly Branches nail that installs and fixes with fuel tank.Adjustable resistance R in the circuit theory diagrams
4Adopt high-accuracy adjustable resistance, guarantee to adjust the accuracy of numerical value, other circuit elements device all adopts the high-quality technical grade product, guarantees the reliably working and the serviceable life of entire circuit.
Claims (2)
1. a digital displayer for vehicle fuel tank is characterized in that: comprise control circuit, be installed in the interior mechanical driving part of fuel tank, be installed in the digital indicator in the pilothouse; Mechanical driving part comprises the upper mounted plate (4) and the bottom plate (13) of level, be vertically installed with between two fixed heads screw rod free to rotate (7) and about two fixing slide bars (6,15), the float connecting plate (9) that one level arranged is enclosed within on screw rod and the left and right sides slide bar simultaneously by three through holes of self, be fixed with the nut (8) that is enclosed within on the screw rod (7) on the float connecting plate, the nut bottom is fixed with the float (11) of an annular, and screw rod (7) top is equipped with a revolving potentiometer (R
t); Control circuit comprises adjusts circuit and A/D change-over circuit.
2. digital displayer for vehicle fuel tank according to claim 1 is characterized in that: screw rod (7) is mutual corresponding multi-step thread with the screw thread of nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102497070A CN101451873A (en) | 2008-12-25 | 2008-12-25 | Digital displayer for vehicle fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102497070A CN101451873A (en) | 2008-12-25 | 2008-12-25 | Digital displayer for vehicle fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101451873A true CN101451873A (en) | 2009-06-10 |
Family
ID=40734240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102497070A Pending CN101451873A (en) | 2008-12-25 | 2008-12-25 | Digital displayer for vehicle fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101451873A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987742A (en) * | 2015-02-27 | 2016-10-05 | 上海通用汽车有限公司 | Liquid level detection device and method |
| CN106768130A (en) * | 2015-11-24 | 2017-05-31 | 中航贵州飞机有限责任公司 | A kind of aircraft pasta signal filtering device |
-
2008
- 2008-12-25 CN CNA2008102497070A patent/CN101451873A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987742A (en) * | 2015-02-27 | 2016-10-05 | 上海通用汽车有限公司 | Liquid level detection device and method |
| CN106768130A (en) * | 2015-11-24 | 2017-05-31 | 中航贵州飞机有限责任公司 | A kind of aircraft pasta signal filtering device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090610 |