CN202789270U - Portable common-rail pressure gauge - Google Patents
Portable common-rail pressure gauge Download PDFInfo
- Publication number
- CN202789270U CN202789270U CN 201120561112 CN201120561112U CN202789270U CN 202789270 U CN202789270 U CN 202789270U CN 201120561112 CN201120561112 CN 201120561112 CN 201120561112 U CN201120561112 U CN 201120561112U CN 202789270 U CN202789270 U CN 202789270U
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- display unit
- rail pressure
- common rail
- measuring device
- portable
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Abstract
The utility model relates to a portable common-rail pressure gauge including a measuring indicating unit and a connecting wire harness. The innovation of the pressure gauge lies in that the pressure gauge can be directly connected when a common-rail system is under on/off state to carry out pressure measurement, and can communicate with an upper computer through a RS232 serial communication interface. A high-pressure low-threshold warning lamp and a system setting button are arranged on the front panel of the measuring indicating unit. The high-pressure low-threshold warning lamp employs flickery red and yellow LED for indication, and the flicker frequency can be adjusted through the setting button. Sensors of other types can be measured by changing the input and output connectors of the connecting wire harness and carrying out calibration setting on the system. The pressure gauge can conveniently measure and monitor common-rail pressure on site, and is simple in structure, convenient for use, and low in cost.
Description
Technical field
The utility model relates to the common rail system pressure measurement, comprise and measure display unit and rat tail, under common rail system work and off working state, all can directly connect measuring device and carry out the common rail pressure measurement, and can pass through RS232 serial communication interface and upper machine communication, be a kind of device that can carry out at the scene easily measurement and monitoring to common rail pressure.
Background technique
Along with the lifting of engine exhaust rules, the market of electric-controlled co-rail fuel injection system is used more and more extensive, and for the electric-controlled co-rail fuel injection system, common rail pressure is one of most important monitoring parameter of system.Motor for configuration electric-controlled co-rail fuel injection system, when motor can't start or during property abnormality, failure cause is by due to the pressure control of common rail system greatly, as pressure can't set up, pressure control fluctuation is unusual etc., therefore, common rail pressure is one of monitoring parameter of most critical in the system maintenance.
In the market for the maintenance tool of electric-controlled co-rail fuel injection system, main professional diagnosis instrument or the notebook of relying on, although the separate diagnostic instrument can be monitored a large amount of system informations, use also very convenient, but it is expensive, be generally 10,000 between tens thousand of, and require to use operator to possess certain technical foundation, the professional diagnosis instrument is specified the 4S service station mainly for high-end user or enterprise; The notebook mode is diagnosed to be needed to be used with professional diagnosis software, carry out the system data monitoring analysis by the dataphone mode, the separate diagnostic software of notebook mode also is for the professional technique user, competency profiling to operator is higher, and battery powered continuous working period is limited during the notebook on board diagnosis, can't diagnose for a long time and monitor.
Domestic engine fuel oil system maintenance market is except special-purpose high-end user or enterprise appointment 4S service station, also has the huge middle and small scale self-employed entrepreneur of quantity, these users' characteristics are that educational level is relatively low, capital scale is limited, actual maintenance is main to rely on simple diagnosis instrument and personal experience, therefore, and the just diagnosis measurer of material benefit of demanding party more, be used for trouble analysis and the investigation of electric-controlled co-rail fuel injection system, the utility model proposes for such market application background just.
Summary of the invention
The purpose of this utility model is to propose a kind of portable common rail pressure measuring device, this device does not cause any damage to electric appliance circuits, can directly connect measuring device in common rail system work and off working state carries out common rail pressure and measures, provide a kind of efficiently and effectively instrument that common rail system pressure is detected, in order to can carry out rapidly detection and the investigation of field failure.
For realizing such purpose, the technical solution of the utility model provides a kind of portable common rail pressure measuring device, comprise and measure display unit and rat tail composition, can directly connect measuring device in the work of electric-controlled co-rail fuel injection system and off working state carries out common rail pressure and measures, unlike the prior art, advantage and the positive effect of the utility model in application is as follows:
1, the utility model comprises measurement display unit and rat tail, described rat tail comprises input adapter, out splice going splice, measurement display unit joint and wire guiding member, wherein input adapter docks with common rail pressure sensor, out splice going splice docks with the system wire harness, measures the display unit joint and docks with the measurement display unit.
2, measure that the display unit front panel arranges the high and low limit value warning light of pressure and system arranges button, the high and low limit value warning light of pressure is redness and yellow light-emitting diode; The high and low limit value of pressure is reported to the police and is adopted light emitting diode frequency scintillation mode, and flicker frequency can be by arranging the button adjustment.
3, measure the display unit rear board RS232 serial communication interface is set, be used for portable common rail pressure measuring device and dataphone, carry out dynamic acquisition and the storage of survey data.
Portable common rail pressure measuring device described in the utility model forms by measuring display unit and rat tail, have simple in structure, easy to use, the characteristics such as with low cost, can directly connect measuring device in the work of electric-controlled co-rail fuel injection system and off working state carries out common rail pressure and measures, provide a kind of efficiently and effectively instrument that common rail pressure is carried out Site Detection, in order to can carry out rapidly faut detection and investigation.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described, in order to analyze application characteristic and the advantage of the technical program, simultaneously; below cited embodiment be descriptive; not determinate, therefore, can not limit protection domain of the present utility model with this.
Description of drawings
Fig. 1 is the utility model system principle diagram;
Fig. 2 is the utility model wire guiding member connection diagram;
Fig. 3 is that the utility model is measured the display cell structure schematic representation;
Fig. 4 is the utility model front-panel structure figure;
Fig. 5 is the utility model rear panel structure figure.
Embodiment
Describe working principle, concrete structure and the preferred embodiment of portable common rail pressure measuring device described in the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model system principle diagram, forms by measuring display unit 50 and rat tail 60.Wherein measure collection and dynamic display processing that display unit 50 is used for measured pressure signal; Rat tail 60 comprises input adapter 10, out splice going splice 20, measures display unit joint 30 and wire guiding member 40, and wherein input adapter 10 connects tested common rail pressure sensor, and namely input adapter 10 customizes according to measured common rail pressure sensor connector assembly; Out splice going splice 20 connected system wire harness, namely out splice going splice 20 is according to system's wire harness connector customization; Measuring display unit joint 30 is connected with measurement display unit 50 corresponding joints.
When the common rail pressure that carries out the electric-controlled co-rail fuel injection system is measured, disengagement common rail pressure sensor connector assembly is connected with system's wire harness, utilize input adapter 10 and the out splice going splice 20 of this measuring device to be connected in series to system, it is the connector assembly that input adapter 10 connects tested common rail pressure sensor, the corresponding of out splice going splice 20 connected system wire harness is plug-in unit, thereby guarantee that the original system state does not change, the common rail pressure signal of electric-controlled co-rail fuel injection system directly shows by measuring display unit 50, and is convenient to use.
Fig. 2 is the utility model wire guiding member connection diagram, wire guiding member 40 comprises that wire 31,32 and 33 forms, their definition is respectively power supply, signal and ground wire, wherein signal is output as voltage type, the corresponding order of each wire is determined that by concrete sensor characteristics the signal of measuring display unit joint 30 is that common rail pressure sensor corresponding lead parallel way is obtained.For convenience of description, here suppose wire 31,32 and 33 respectively corresponding power, signal and ground wire, if wire definition is with above-mentioned when inconsistent, only need to adjust input adapter 10, out splice going splice 20 and measure the corresponding jack position of display unit joint 30 terminal and get final product, and any change does not occur in system principle, therefore, only corresponding power, signal and ground wire launch respectively according to wire 31,32 and 33 in this description.
Fig. 3 is that the utility model is measured the display cell structure schematic representation, mainly is comprised of rectification processing circuit, dry battery, SCM system, serial ports processing circuit, RS232 serial communication interface 220.The rectification processing circuit is finished the processing of+5V power-supply system required from alternating current 220V to single-chip microcomputer when exchanging the input power supply mode, satisfies the SCM system job requirement; Dry battery employing+9V power supply has improved the energy storage capability of system, and is+the 5V power-supply system to satisfy the SCM system job requirement by processing of circuit.When dry battery positive source output terminal connecting valve 41 and diode 42, diode 42 are used for preventing switch connection and adopt the exchange way power supply to batteries charging, thereby cause the damage of dry battery.1,2,3,4,5,6 is system's input and output Interface Terminal, wherein terminal 1,2,3 forms output interface, can directly connect the equipment such as multimeter or oscillograph and carry out the signal measurement analysis, terminal 4,5,6 forms input interface, with the docking of measurement display unit joint 30 connector assemblys, wherein terminal 4 is that ground wire, terminal 5 are that common rail pressure sensor output signal, terminal 6 are the common rail pressure sensor power supply, is communicated with respectively at electrical characteristic upper terminal 1 and 4, terminal 2 and 5, terminal 3 and 6.
Fig. 4 is the utility model front-panel structure figure, and by light emitting diode (Light Emitting Diode) display place 170, button is set and the limit value warning light forms, wherein diode displaying district 170 is used for metrical information and configuration information shows.The limit value warning light is divided into two kinds of ceiling value warning light and low limit value warning lights, wherein 120 is the ceiling value warning light, threshold limit is by arranging the button setting, when measured common rail pressure value surpasses ceiling value, ceiling value warning light 120 begins flicker reports to the police, and namely by red light emitting diodes flicker alarm, wherein flicker frequency can be by arranging the button adjustment, when measured common rail pressure value was no more than ceiling value, ceiling value warning light 120 extinguished.110 are low limit value warning light, threshold limit is by arranging the button setting, when measured common rail pressure value is no more than low limit value, low limit value warning light 110 begins flicker and reports to the police, namely by yellow light-emitting diode flicker alarm, wherein flicker frequency can be by the button adjustment is set, and when measured common rail pressure value surpassed low limit value, low limit value warning light 110 extinguished.
High and low limit value warning light adopts different colours can prevent effectively that in actual applications information from obscuring, even high and low limit value warning light adopts same color, because high and low limit value warning light position is nearer, high and low limit value information easily occurs in the application to be obscured, thereby provide misleading information, and the prompting of warning light employing flashing mode, the alarming effect that information is reported to the police strengthened, because the maintenance sites environment is noisy, can effectively overcome the shortcoming of sound alarm poor effect.
Button is set has four, be respectively 130,140,150,160, button 160 wherein is set is used for the systemic-function setting, enter the state of setting by 160 systems; Button 150 is set is used for the function selection, can carry out the functions such as transducer calibration, ceiling value setting, low limit value setting, ceiling value warning light set of frequency, low limit value warning light set of frequency after entering the state of setting, button 150 is set be used for difference in functionality switching selection; Button 140 is set is used for turning on the numerical value, press and once be set up numerical value and increase 1; Button 130 is set is used for turning under the numerical value, press and once be set up numerical value and subtract 1, numerical value is kept in the nonvolatile storage of SCM system afterwards automatically in change, and these are set up data and can lose after the outage.
Fig. 5 is the utility model rear panel structure figure, and wherein 200 is the alternating voltage input interface; 41 is switch, is used for disconnecting and being connected the battery anode power supply signal; 220 is serial communication interface, by this interface and upper computer software communication, can collect the common rail pressure real-time measurement values in the computer and shows, stores and analyze; 230 are the dry battery lid, the inner dry battery of placing; 240 is output interface, wherein three sockets respectively with Fig. 3 in 1,2,3 correspondences; 250 is input interface, wherein three sockets respectively with Fig. 3 in 4,5,6 correspondences.
The above is exactly embodiment of the present utility model; in the scope that the utility model content and claim cover, multiple modification and change can be arranged; for example when changing rat tail 60; after namely changing input adapter 10 and out splice going splice 20; and by being set, button carries out the system calibrating setting; can measure the sensor signal of other type, therefore, described embodiment does not consist of the restriction to the utility model claim protection domain.
Claims (6)
1. portable common rail pressure measuring device, comprise and measure display unit and rat tail, it is characterized in that, measuring the display unit joint docks with the measurement display unit, rat tail comprises input adapter, out splice going splice, measurement display unit joint and wire guiding member, wherein input adapter docks with common rail pressure sensor, and out splice going splice docks with the system wire harness.
2. portable common rail pressure measuring device according to claim 1 is characterized in that, measures the display unit power supply for dry battery and exchanges the input dual mode.
3. portable common rail pressure measuring device according to claim 1 is characterized in that, the positive source output loop of measuring display unit dry battery power supply mode has switch and unilateral diode.
4. portable common rail pressure measuring device according to claim 1 is characterized in that, the high and low limit value warning light of pressure is set measurement display unit front panel and system arranges button.
5. portable common rail pressure measuring device according to claim 4 is characterized in that, measures the high and low limit value warning of pressure of display unit front panel and adopts light emitting diode frequency scintillation mode, and flicker frequency can be by arranging the button adjustment.
6. portable common rail pressure measuring device according to claim 1 is characterized in that, measures the display unit rear board RS232 serial communication interface is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120561112 CN202789270U (en) | 2011-12-14 | 2011-12-14 | Portable common-rail pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120561112 CN202789270U (en) | 2011-12-14 | 2011-12-14 | Portable common-rail pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789270U true CN202789270U (en) | 2013-03-13 |
Family
ID=47816545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120561112 Expired - Lifetime CN202789270U (en) | 2011-12-14 | 2011-12-14 | Portable common-rail pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU199932U1 (en) * | 2020-06-22 | 2020-09-29 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | EXPRESS TESTER FOR CHECKING FUEL PRESSURE SENSORS OF COMMON RAIL SYSTEMS |
| RU2755730C1 (en) * | 2021-06-07 | 2021-09-20 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | Method for hydraulic testing of common rail systems components |
-
2011
- 2011-12-14 CN CN 201120561112 patent/CN202789270U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU199932U1 (en) * | 2020-06-22 | 2020-09-29 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | EXPRESS TESTER FOR CHECKING FUEL PRESSURE SENSORS OF COMMON RAIL SYSTEMS |
| RU2755730C1 (en) * | 2021-06-07 | 2021-09-20 | Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" | Method for hydraulic testing of common rail systems components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170718 Address after: 214063 Jiangsu city of Wuxi province Qian Rong Lu No. 15 Patentee after: China FAW Group Corporation Address before: 214063 Jiangsu city of Wuxi province Qian Rong Lu No. 15 Patentee before: Wuxi Oil Pump Nozzle Institute of First Automobile Works |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |