CN104165673A - Hidden type secret investigation device for refueling measurement and detection and use method thereof - Google Patents

Hidden type secret investigation device for refueling measurement and detection and use method thereof Download PDF

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Publication number
CN104165673A
CN104165673A CN201410366048.4A CN201410366048A CN104165673A CN 104165673 A CN104165673 A CN 104165673A CN 201410366048 A CN201410366048 A CN 201410366048A CN 104165673 A CN104165673 A CN 104165673A
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secretly
hidden
fuel
fuel tank
oil
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冯胜刚
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Abstract

The invention provides a hidden type secrete investigation device for refueling measurement and detection and a use method of the hidden type secrete investigation device for refueling measurement and detection. The hidden type secrete investigation device comprises a standard metal measuring vessel, a three-column vernier caliper, a temperature sensor and a liquid level sensor, wherein the three-column vernier caliper is arranged on the standard metal measuring vessel, and an inlet of the standard metal measuring vessel is connected with a refueling port of an automobile oil tank. A first drain valve is arranged at the bottom of the standard metal measuring vessel. The first drain valve pumps oil into an auxiliary oil tank through an anti-explosion oil pump. Two drain valves are further arranged at the bottom of the auxiliary oil tank and are connected with the automobile oil tank and a spare oil container. The hidden type secrete investigation device is further provided with a hidden camera used for obtaining evidence. By the adoption of the hidden type secrete investigation device for refueling measurement and detection, multiple refueling machines can be detected rapidly, and hidden type secrete investigation and detection can be conducted. The hidden type secrete investigation device for refueling measurement and detection can be used as a movable type capacity rating device. According to the hidden type secrete investigation device for refueling measurement and detection, management is fine, accurate, easy and convenient; incorrupt government monitoring is facilitated, misunderstanding caused by human factors can be reduced easily, and the hidden type secrete investigation device for refueling measurement and detection is particularly suitable for a measurement law-enforcement department and a competent department and used for metrological verification and law enforcement.

Description

Fuel-filling metering detects hidden and investigates equipment and using method thereof secretly
Technical field
The present invention relates to a kind of for measuring the standard capacity measure such as gasoline, diesel oil.Particularly, relate to a kind of metering for to refuelling station and detect the hidden vehicular standard capacity measure of investigating secretly, and utilize the vehicle-mounted standard capacity measure of this hidden to carry out the method for calibration measurements.
Background technology
Along with the progressively raising of Chinese society, living standards of the people progressively rise, and family has car to become gradually the standard configuration of urban family.Thereby, for the refuelling station of automobile fuel filler also more and more.And gas stations exists oiling inaccurate, deliberately add less, leak the phenomenon that adds gasoline.A large amount of complaint that annual Quality Supervision Bureau receives all relates to refuelling station and measures inaccurate problem.Therefore, the staff of Quality Supervision Bureau needs a plurality of refuelling stations frequently to demarcate test.In prior art, staff has arrived behind each refuelling station often, then installs standard capacity measure and test, and this carries out the installation of device by expending a large amount of time, thereby greatly reduces the work efficiency of demarcating test.Further, small part refuelling station changes fuel charger working mechanism after existing and seeing and reaching the spot after supervisor at once, hides the inaccurate true phenomenon of metering.
Therefore, how can realize rapidly the fuel charger of refuelling station is carried out to calibration measurements, further, how can hide calibration measurements equipment, Fuel-filling metering detection realization is investigated secretly to formula calibration measurements becomes the technical matters that prior art is needed solution badly.
Summary of the invention
The object of the invention is to propose a kind of Fuel-filling metering detection hidden and investigate equipment and using method thereof secretly, the liquid capacity standard capacity measure for measuring such as gasoline, diesel oil is arranged in automobile, thereby realize, rapidly fuel charger is carried out to gauging calibration.And further, utilize the fuel tank of automobile to add entrance as the oil filler of standard capacity measure, and this standard capacity measure is arranged in automobile trunk, realize hidden and investigate detection secretly.
For reaching this object, the present invention by the following technical solutions:
A kind of Fuel-filling metering detects hidden and investigates equipment secretly, comprise: standard capacity measure, be arranged on the three pillar type vernier caliper on standard capacity measure, temperature sensor and liquid level sensor, described liquid level sensor is connected with display, the liquid of described three pillar type vernier caliper for adding in measurement standard metal tank mechanically; Described temperature sensor is for the temperature of liquid in measurement standard metal tank; The liquid of described liquid level sensor for adding in the automatic measurement standard metal tank of mode with electronics, described display is added into the concrete quantity of liquid for display measurement,
It is characterized in that: the entrance that adds of the entrance of described standard capacity measure and automotive oil tank is connected, for directly accessing fuel charger, add gasoline or diesel oil; Bottom at described standard capacity measure connects the 1st tapping valve by three-way pipeline, described the 1st tapping valve connects electric oil pump by oil pipe, described electric oil pump is by the top of oil pipe auxiliary connection fuel tank, for the liquid in described standard capacity measure is entered to auxiliary fuel tank, to measure next time.
Preferably, the bottom of described standard capacity measure also connects the 4th tapping valve by described three-way pipeline, and described the 4th tapping valve connects hand oil pump, for by the manual suction auxiliary fuel tank of the liquid in described standard capacity measure, to measure next time.
Preferably, the described electric oil pump being connected with the 1st tapping valve is explosion-proof oil pump, by described fire proof motor, drives, and oil is pumped into auxiliary fuel tank by oil pipe, and direct supply connects described fire proof motor.
Preferably, in described auxiliary fuel tank, there is buoy, for pointing out the liquid level in auxiliary fuel tank.
Preferably, the bottom of described auxiliary fuel tank is provided with oil pipe and the 2nd tapping valve, and described the 2nd tapping valve is connected to automotive oil tank by oil pipe.
Preferably, the bottom of described auxiliary fuel tank is provided with oil pipe and the 3rd tapping valve, and described the 3rd tapping valve can connect standby oil drum, for the liquid in described auxiliary fuel tank is entered to standby oil drum, to frequently measure.
Preferably, on the top of described standard capacity measure and described auxiliary fuel tank, also there is gas outlet, for toxic emission, make successfully to refuel.
Preferably, described Fuel-filling metering detects the hidden equipment of investigating secretly and also comprises concealed camera, and described concealed camera all around four orientation is arranged, is convenient to omnidistance record and enters the process that refuelling station carries out testing.
The invention also discloses and a kind ofly for Fuel-filling metering, detect hidden and investigate automobile secretly, it is characterized in that:
Described investigating secretly hiddenly in automobile installed Fuel-filling metering disclosed by the invention and detected hidden and investigate equipment secretly, and described Fuel-filling metering detects the hidden equipment of investigating secretly and adds entrance with car fuel tank and be connected.
The invention also discloses a kind of above-mentioned Fuel-filling metering and detect hidden and investigate equipment secretly or utilize and above-mentioned for Fuel-filling metering, detect hidden and investigate the method that automobile is investigated detection secretly secretly, comprise the steps:
Investigate front preparation process S110 secretly, liquid displayer, fire proof motor in car are connected to electricity, the 1st tapping valve of opening standard capacity measure bottom, is evacuated to auxiliary fuel tank by explosion-proof oil pump or hand oil pump by gasoline, and then the 1st tapping valve of standard capacity measure bottom is shut;
Investigate step S120 secretly, the oil gun of refuelling station inserts car fuel tank and adds entrance, the gasoline being added joins in standard capacity measure automatically, the waste gas producing during oiling is discharged automatically from waste gas exhaust pipe, buys quantitative gasoline at every turn, be arranged on the liquid level sensor in standard capacity measure, automatically detect the gasoline liquid level in standard capacity measure, by the display in car, demonstrate the concrete quantity of the gasoline being added;
Investigate end step S130 secretly, open the 1st tapping valve of standard capacity measure bottom, by explosion-proof oil pump or hand oil pump, gasoline is transported to auxiliary fuel tank, or the fuel tank in car or oil is transported in oil drum by petroleum pipeline.
Fuel-filling metering of the present invention detects hidden and investigates equipment and using method thereof secretly, can to the fuel charger of a plurality of refuelling stations, detect rapidly, and can carry out hidden and investigate detection secretly, to improve the authenticity of detection.And the present invention is simple, easy-to-use, can also use as portable capacity caliberating device, be applicable to the detection of other outdoor metering outfit measuring accuracy.It is meticulous, accurate, simple, convenient that the present invention manages.Be beneficial to supervision on a clean and honest administration and reduce artificial misunderstanding, the measurement verification and the law enforcement that are particularly suitable for measuring law enforcement agency and use competent authorities.
Accompanying drawing explanation
Fig. 1 is that Fuel-filling metering according to a particular embodiment of the invention detects the device schematic diagram that hidden is investigated equipment secretly;
Fig. 2 comprises Fuel-filling metering of the present invention to detect the schematic diagram that hidden is investigated the automobile of equipment secretly;
Fig. 3 is used vehicular standard capacity measure of the present invention to carry out the method that hidden is investigated detection secretly.
The technical characterictic that Reference numeral in figure refers to is respectively:
1, standard capacity measure; 2, three pillar type vernier caliper; 3, temperature sensor; 4, car fuel tank inlet; 5, the first tapping valve; 6, electric oil pump; 7, fire proof motor; 8, direct supply; 9, liquid level sensor; 10, display; 11, gas outlet; 12, auxiliary fuel tank; 13, buoy; 14, the 2nd tapping valve; 15, car fuel tank; 16, the 3rd tapping valve; 17, standby oil drum; 18, concealed camera; 19, the 4th tapping valve; 20, hand oil pump; 100, hidden is investigated equipment secretly; 200, automobile.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, in accompanying drawing, only show part related to the present invention but not entire infrastructure.
In order to realize rapidly, the fuel charger of a plurality of refuelling stations is carried out to measuration, and can to fuel charger, investigate snugly the metering detection of formula secretly further, thinking of the present invention is to build an integrated Fuel-filling metering equipment, comprise the devices such as metering, demonstration, temperature survey, make this metering outfit can complete independently testing, and obtain rapidly testing result.Auxiliary fuel tank is set simultaneously, by oil pump, the last time is measured to resulting oil and be pumped in auxiliary fuel tank, promptly carry out new metering and detect.Further, integrated Fuel-filling metering equipment is arranged in the boot of automobile, adds entrance with the automotive oil tank of automobile and be connected, from observing in appearance, refuel the same with general-utility car, can realize the formula of investigating secretly and refuel, avoid lawbreaker seeing that testing staff descendant is for revising fuel charger setting.
Referring to Fig. 1, disclose according to the Fuel-filling metering of the specific embodiment of the invention and detected the device schematic diagram that hidden is investigated equipment secretly, this Fuel-filling metering detection hidden is investigated equipment 100 secretly and is comprised: standard capacity measure 1, be arranged on the three pillar type vernier caliper 2 on standard capacity measure 1, temperature sensor 3 and liquid level sensor 9, described liquid level sensor 9 is connected with display 10, and described three pillar type vernier caliper is for the liquid to add in mode measurement standard metal tank mechanically; Described temperature sensor 3 is for the temperature of liquid in measurement standard metal tank; The liquid of described liquid level sensor for adding in the automatic measurement standard metal tank of mode with electronics, described display is added into liquid for display measurement, gasoline for example, concrete quantity; It is characterized in that, the entrance 4 that adds of the entrance of described standard capacity measure 1 and automotive oil tank is connected, and for directly accessing fuel charger, adds gasoline or diesel oil; Bottom at described standard capacity measure 1 connects the 1st tapping valve 5 by three-way pipeline, described the 1st tapping valve connects electric oil pump by oil pipe, described electric oil pump is by the top of oil pipe auxiliary connection fuel tank 12, for the liquid in described standard capacity measure 1 is entered to auxiliary fuel tank, to measure next time.
Therefore, Fuel-filling metering disclosed in this invention detects the hidden equipment of investigating secretly can complete the measurement that fuel charger is added to gasoline or diesel oil independently, thereby completes rapidly, easily the detection to a plurality of fuel chargers.And, be directly connected with the entrance 4 that adds of automotive oil tank, for directly accessing fuel charger, add gasoline or diesel oil, can realize and investigate formula blind detection secretly.When gasoline injects after automobile, gasoline adds entrance 4 by fuel tank and flows into standard capacity measure 1, and liquid level sensor directly obtains being added the quantity of gasoline, by display, directly show this quantity, not only simply but also directly perceived, display can be placed on any position in car, was convenient to directly observe.Vernier caliper adds gasoline quantity for subsidiary.
Further, described electric oil pump is explosion-proof oil pump 6, by fire proof motor 7, drives, and oil is pumped into auxiliary fuel tank 12 by oil pipe, and direct supply 8 connects described fire proof motor, thereby automatic pump oil is provided, and avoids fire risk.
In described auxiliary fuel tank 12, there is buoy 13, for pointing out the liquid level in auxiliary fuel tank.
The bottom of described auxiliary fuel tank 12 is provided with oil pipe and the 2nd tapping valve 14, and described the 2nd tapping valve is connected to automotive oil tank by oil pipe, make when in auxiliary fuel tank, gasoline is too much to discharge gasoline, or dolly fuel tank provides gasoline when not enough.
The bottom of described auxiliary fuel tank 12 is provided with oil pipe and the 3rd tapping valve 16, and described the 3rd tapping valve can connect standby oil drum 17, makes when in auxiliary fuel tank, gasoline is too much to discharge gasoline, to frequently measure.
Top at described standard capacity measure 1 and described auxiliary fuel tank 12 also has gas outlet 11, for toxic emission, makes successfully in fuel tank, to refuel, and does not affect level gauge.
The bottom of described standard capacity measure 1 also connects the 4th tapping valve 19 by described three-way pipeline, and described the 4th tapping valve connects hand oil pump 20, for by the manual suction auxiliary fuel tank of the liquid in described standard capacity measure, to measure next time.Like this, when explosion-proof oil pump cannot be worked, can provide backup oil pump to pump gasoline.
Further, described Fuel-filling metering detection hidden is investigated equipment 100 secretly and is also comprised concealed camera 18, described concealed camera all around four orientation is arranged, when record refuels, the situation of refuelling station and fuel charger, be convenient to comprehensively, and omnidistance record enters the process that refuelling station carries out testing, using as the oiling evidence of investigating secretly.Described hidden camera 18 can exemplarily be installed on direct supply 8, so that safety to be provided.
Referring to Fig. 2, the invention also discloses and a kind ofly for Fuel-filling metering, detect hidden and investigate automobile 200 secretly, it is characterized in that, hiddenly in its automobile Fuel-filling metering disclosed in this invention has been installed is detected hidden and investigate equipment 100 secretly, for example, be arranged on the boot of automobile, described Fuel-filling metering detects hidden and investigates equipment 100 secretly and add entrance 4 with car fuel tank and be connected.
Although be exemplified as car in accompanying drawing, obviously, also go for picking-up vehicle series, minibus series, offroad vehicle complete series, as long as hidden installation, and directly add entrance 4 with car fuel tank and be connected.
Referring to Fig. 3, the invention also discloses and utilize Fuel-filling metering of the present invention to detect hidden to investigate equipment 100 secretly or utilize and of the present inventionly for Fuel-filling metering, detect hidden and investigate the method that automobile 200 is investigated detection secretly secretly, comprise the steps:
Investigate front preparation process S110 secretly, liquid displayer, fire proof motor in car are connected to electricity, the 1st tapping valve of opening standard capacity measure bottom, is evacuated to auxiliary fuel tank by explosion-proof oil pump or hand oil pump by gasoline, and then the 1st tapping valve of standard capacity measure bottom is shut;
Investigate step S120 secretly, the oil gun of refuelling station inserts car fuel tank and adds entrance, the gasoline being added joins in standard capacity measure automatically, and the waste gas producing during oiling is discharged automatically from waste gas exhaust pipe, the quantitative gasoline of each purchase, after 20 liters of gasoline, be arranged on the liquid level sensor in standard capacity measure, automatically detect the gasoline liquid level in standard capacity measure, by the display in car, demonstrate the concrete quantity of the gasoline being added.
Investigate end step S130 secretly, open the 1st tapping valve of standard capacity measure bottom, by explosion-proof oil pump or hand oil pump, gasoline is transported to auxiliary fuel tank, or the fuel tank in car or oil is transported in oil drum by petroleum pipeline.Thereby the Fuel-filling metering step that completes a standard, hidden is investigated detection secretly in other words.
Therefore, utilize Fuel-filling metering of the present invention to detect hidden and investigate equipment and using method thereof secretly, can to the fuel charger of a plurality of refuelling stations, detect rapidly, and can carry out hidden and investigate detection secretly, to improve the authenticity of detection.And the present invention is simple, easy-to-use, can also use as portable capacity caliberating device, be applicable to the detection of other outdoor metering outfit measuring accuracy.It is meticulous, accurate, simple, convenient that the present invention manages.Be beneficial to supervision on a clean and honest administration and reduce artificial misunderstanding, the measurement verification and the supervision that are particularly suitable for measuring law enforcement agency and use competent authorities.
Above content is in conjunction with concrete preferred implementation further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine protection domain by submitted to claims.

Claims (10)

1. a Fuel-filling metering detects hidden and investigates equipment secretly, comprise: standard capacity measure, be arranged on the three pillar type vernier caliper on standard capacity measure, temperature sensor and liquid level sensor, described liquid level sensor is connected with display, the liquid of described three pillar type vernier caliper for adding in measurement standard metal tank mechanically; Described temperature sensor is for the temperature of liquid in measurement standard metal tank; The liquid of described liquid level sensor for adding in the automatic measurement standard metal tank of mode with electronics, described display is added into the concrete quantity of liquid for display measurement,
It is characterized in that: the entrance that adds of the entrance of described standard capacity measure and automotive oil tank is connected, for directly accessing fuel charger, add gasoline or diesel oil; Bottom at described standard capacity measure connects the 1st tapping valve by three-way pipeline, described the 1st tapping valve connects electric oil pump by oil pipe, described electric oil pump is by the top of oil pipe auxiliary connection fuel tank, for the liquid in described standard capacity measure is entered to auxiliary fuel tank, to measure next time.
2. Fuel-filling metering according to claim 1 detects hidden and investigates equipment secretly, it is characterized in that:
The bottom of described standard capacity measure also connects the 4th tapping valve by described three-way pipeline, and described the 4th tapping valve connects hand oil pump, for by the manual suction auxiliary fuel tank of the liquid in described standard capacity measure, to measure next time.
3. Fuel-filling metering according to claim 1 detects hidden and investigates equipment secretly, it is characterized in that:
The described electric oil pump being connected with the 1st tapping valve is explosion-proof oil pump, by described fire proof motor, drives, and oil is pumped into auxiliary fuel tank by oil pipe, and direct supply connects described fire proof motor.
4. Fuel-filling metering according to claim 1 detects hidden and investigates equipment secretly, it is characterized in that:
In described auxiliary fuel tank, there is buoy, for pointing out the liquid level in auxiliary fuel tank.
5. Fuel-filling metering according to claim 1 detects hidden and investigates equipment secretly, it is characterized in that:
The bottom of described auxiliary fuel tank is provided with oil pipe and the 2nd tapping valve, and described the 2nd tapping valve is connected to automotive oil tank by oil pipe.
6. Fuel-filling metering according to claim 1 detects hidden and investigates equipment secretly, it is characterized in that:
The bottom of described auxiliary fuel tank is provided with oil pipe and the 3rd tapping valve, and described the 3rd tapping valve can connect standby oil drum, for the liquid in described auxiliary fuel tank is entered to standby oil drum, to frequently measure.
7. Fuel-filling metering according to claim 1 detects hidden and investigates equipment secretly, it is characterized in that:
Top at described standard capacity measure and described auxiliary fuel tank also has gas outlet, for toxic emission, makes successfully to refuel.
8. Fuel-filling metering according to claim 1 detects hidden and investigates equipment secretly, it is characterized in that:
Described Fuel-filling metering detects the hidden equipment of investigating secretly and also comprises concealed camera, and described concealed camera all around four orientation is arranged, is convenient to omnidistance record and enters the process that refuelling station carries out testing.
9. for Fuel-filling metering, detect hidden and investigate an automobile secretly, it is characterized in that:
Describedly investigate hidden installation in automobile secretly and according to the Fuel-filling metering described in any one in claim 1-8, detect hidden and investigate equipment secretly, described Fuel-filling metering detects the hidden equipment of investigating secretly and adds entrance with car fuel tank and be connected.
10. utilize the Fuel-filling metering described in any one in claim 1-8 to detect hidden and investigate equipment secretly or utilize detecting hidden for Fuel-filling metering and investigate the method that automobile is investigated detection secretly secretly described in claim 9, comprise the steps:
Investigate front preparation process S110 secretly, liquid displayer, fire proof motor in car are connected to electricity, the 1st tapping valve of opening standard capacity measure bottom, is evacuated to auxiliary fuel tank by explosion-proof oil pump or hand oil pump by gasoline, and then the 1st tapping valve of standard capacity measure bottom is shut;
Investigate step S120 secretly, the oil gun of refuelling station inserts car fuel tank and adds entrance, the gasoline being added joins in standard capacity measure automatically, the waste gas producing during oiling is discharged automatically from waste gas exhaust pipe, buys quantitative gasoline at every turn, be arranged on the liquid level sensor in standard capacity measure, automatically detect the gasoline liquid level in standard capacity measure, by the display in car, demonstrate the concrete quantity of the gasoline being added;
Investigate end step S130 secretly, open the 1st tapping valve of standard capacity measure bottom, by explosion-proof oil pump or hand oil pump, gasoline is transported to auxiliary fuel tank, or the fuel tank in car or oil is transported in oil drum by petroleum pipeline.
CN201410366048.4A 2014-07-29 2014-07-29 Hidden type secret investigation device for refueling measurement and detection and use method thereof Pending CN104165673A (en)

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Application Number Priority Date Filing Date Title
CN201410366048.4A CN104165673A (en) 2014-07-29 2014-07-29 Hidden type secret investigation device for refueling measurement and detection and use method thereof

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Application Number Priority Date Filing Date Title
CN201410366048.4A CN104165673A (en) 2014-07-29 2014-07-29 Hidden type secret investigation device for refueling measurement and detection and use method thereof

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2224115Y (en) * 1994-11-05 1996-04-10 梁升源 Micro metering oil-tank
CN2468799Y (en) * 2001-03-24 2002-01-02 李剑锋 Fuel tank with measurement for automobile
CN2497284Y (en) * 2000-01-27 2002-06-26 罗华 Portable fuel filling meter for driver
CN1908596A (en) * 2006-08-30 2007-02-07 王海胜 Hidden type fuel measurer
CN101028792A (en) * 2006-03-02 2007-09-05 郑荣华 Fuel-oil tank with transparent meter device for automobile
CN101067568A (en) * 2007-06-18 2007-11-07 上海本安仪表系统有限公司 External vehicle fuel tank fuel quantity precision metering container device
CN101241020A (en) * 2008-02-01 2008-08-13 长沙正天机电有限公司 Intelligent full-automatic liquid metering measurement method and its standard metal measuring vessel device
CN202994221U (en) * 2012-08-16 2013-06-12 黑龙江省计量科学研究院 Vehicle-mounted oiling quantity monitoring device
CN103557912A (en) * 2013-11-05 2014-02-05 上海市计量测试技术研究院 Mobile detection device for refueling machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2224115Y (en) * 1994-11-05 1996-04-10 梁升源 Micro metering oil-tank
CN2497284Y (en) * 2000-01-27 2002-06-26 罗华 Portable fuel filling meter for driver
CN2468799Y (en) * 2001-03-24 2002-01-02 李剑锋 Fuel tank with measurement for automobile
CN101028792A (en) * 2006-03-02 2007-09-05 郑荣华 Fuel-oil tank with transparent meter device for automobile
CN1908596A (en) * 2006-08-30 2007-02-07 王海胜 Hidden type fuel measurer
CN101067568A (en) * 2007-06-18 2007-11-07 上海本安仪表系统有限公司 External vehicle fuel tank fuel quantity precision metering container device
CN101241020A (en) * 2008-02-01 2008-08-13 长沙正天机电有限公司 Intelligent full-automatic liquid metering measurement method and its standard metal measuring vessel device
CN202994221U (en) * 2012-08-16 2013-06-12 黑龙江省计量科学研究院 Vehicle-mounted oiling quantity monitoring device
CN103557912A (en) * 2013-11-05 2014-02-05 上海市计量测试技术研究院 Mobile detection device for refueling machine

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