CN206721968U - A kind of small type hydraulic excavator fuel filling prompt system - Google Patents
A kind of small type hydraulic excavator fuel filling prompt system Download PDFInfo
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- CN206721968U CN206721968U CN201720554426.0U CN201720554426U CN206721968U CN 206721968 U CN206721968 U CN 206721968U CN 201720554426 U CN201720554426 U CN 201720554426U CN 206721968 U CN206721968 U CN 206721968U
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- relay
- fuel filling
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- instrument
- fuel
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Abstract
The utility model discloses a kind of small type hydraulic excavator fuel filling prompt system, including instrument and battery, in addition to fuel oil level sensor, relay I, relay II and fuel filling prompt switch；The fuel oil level sensor electrically connects with instrument, and the coil with relay I, instrument mutually concatenate the battery successively, the coil of the relay II concatenated with fuel filling prompt switch after branch road and relay I coil phase and connect；The normally opened contact with relay II, the normally opened contact of relay I, the instrument of diode I mutually concatenate the battery successively again；The input of the diode I electrically connects further through wire with the input of the coil of relay II.The system architecture is simple, novel in design, and control is stable, when fuel up, presses the oiling filling prompt switch near fuel oil feeding port, triggers fuel filling prompt facility, the problems such as effectively avoiding the occurrence of fuel filling deficiency or overflow.
Description
Technical field
A kind of small type hydraulic excavator fuel filling prompt system is the utility model is related to, belongs to excavator technical field.
Background technology
Influence for small type hydraulic excavator restricted clearance, fuel tank are not easy what is observed when being often arranged in fuel up
Position, fuel filling height can not be observed during fuel filling, fuel filling deficiency easily occur or fuel filling overflows etc.
Problem.
The content of the invention
According to the deficiencies in the prior art, there is provided a kind of small type hydraulic excavator fuel filling prompt system, the system architecture
Simply, novel in design, control is stable, when fuel up, presses the oiling filling prompt switch near fuel oil feeding port, triggering
Fuel filling prompt facility, the problems such as effectively avoiding the occurrence of fuel filling deficiency or overflow.
The utility model is realized by following technical scheme：
A kind of small type hydraulic excavator fuel filling prompt system, including instrument and battery, in addition to fuel oil position sensing
Device, relay I, relay II and fuel filling prompt switch；The fuel oil level sensor electrically connects with instrument, the battery
The coil with relay I, instrument mutually concatenate successively, the coil of the relay II concatenated with fuel filling prompt switch after branch
The coil phase of road and relay I simultaneously connects；The normally opened contact with relay II, the normally opened of relay I touch the battery successively again
Point, the instrument of diode I mutually concatenate；The input of the diode I is further through the input of wire and the coil of relay II electricity
Connection.
Preferably, the coil of the relay II and a diode II is connect.
Preferably, the coil of the relay I and a diode II is connect.
Preferably, the fuel filling prompt switch uses self-resetting button switch。
Preferably, the instrument includes controller and display screen, input and the fuel oil level sensor of the controller
It is connected, the output end of controller is connected with display screen, and the liquid level signal for gathering fuel oil level sensor is shown by display screen；Institute
State coil of the output end of controller also with relay I to be connected, the coil for control relay I is grounded.
Preferably, the instrument also includes alarm, and the input of the alarm is connected with the output end of controller.
The utility model beneficial effect：
The utility model is simple to operate, and control is stable, simple in construction, when pressing fuel filling cue button switch, passes through
Relay I and relay II form mutual interlocking gear, and battery is to instrument power supply, instrument to collect fuel oil level sensor signal, when adopting
When collecting fuel oil highly increases, alarm sends prompt tone, prompts fuel oil to fill, when fuel filling to setting height,
Alarm sends another prompt tone, prompts fuel filling full, stops filling；AvoidOccur fuel oil during fuel filling to add
The problems such as note deficiency or fuel filling overflow.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of small type hydraulic excavator fuel filling prompt system.
Embodiment
The utility model is further described below in conjunction with drawings and examples.
As shown in figure 1, a kind of small type hydraulic excavator fuel filling prompt system, including instrument 6, battery 1, fuel oil position
Sensor 7, relay I 5, relay II 4 and fuel filling prompt switch 3；Fuel filling prompt switch 3 uses Self-resetting button
Switch,Instrument 6 includes controller, display screen and alarm.
The input of controller is connected with fuel oil level sensor 7, and the output end of controller is connected with display screen, and collection is fired
The liquid level signal of fuel level sensor 7 is shown by display screen；The input of alarm is connected with the output end of controller, works as oil level
Alarm is sent after reaching predetermined altitude.
The coil with relay I 5, the phase of instrument 6 are concatenated battery 1 successively, and coil and the fuel filling of relay II 4 are prompted
Switch the coil phase of the branch road after 3 concatenations and relay I 5 and connect；Battery 1 again successively the normally opened contact with relay II 4, after
The normally opened contact of electrical equipment I 5, the phase of I 2 instrument of diode 6 concatenation；The input of diode I 2 is further through wire and relay II 4
The input electrical connection of coil.
As being further improved to for such scheme, the coil of relay II 4 and relay I 5 respectively and connects two poles
Pipe II 8, self induction electromotive force polarity caused by shutdown transient coil is met that two pole forward conductions form afterflow, this self-induction is inducted
Current drain is fallen so as to protect other prototype parts on circuit.
The course of work：
When carrying out fuel filling, fuel filling prompt switch 3, the adhesive of relay II 4 are pressed, battery 1 passes through relay
II 4, relay I 5, diode I 2, power to instrument 6, while relay I 5, relay II 4 form mutual interlocking gear, keep to instrument
Table is powered；Instrument 6 gathers the signal of fuel oil level sensor 7, and when collecting fuel oil and highly increasing, instrument buzzer sends prompt tone
I, prompt fuel oil to fill；Giving tacit consent to now fuel filling when fuel filling to setting height expires, and instrument buzzer is sent separately
A kind of outer prompt tone II, prompt fuel filling full, stop filling.After instrument 6 collects fuel filling to setting height, instrument
Delay time certain time of table 6 is adjustable, is grounded, the adhesive of relay I 5, the power down blank screen of instrument 6 is complete the coil of output relay I 5
Into fuel filling process.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of small type hydraulic excavator fuel filling prompt system, including instrument（6）And battery（1）, it is characterised in that：
Also include fuel oil level sensor（7）, relay I（5）, relay II（4）With fuel filling prompt switch（3）；
The fuel oil level sensor（7）With instrument（6）Electrical connection, the battery（1）Successively with relay I（5）Coil, instrument
Table（6）Mutually concatenate, the relay II（4）Coil and fuel filling prompt switch（3）Branch road and relay I after concatenation
（5）Coil phase and connect；
The battery（1）Again successively with relay II（4）Normally opened contact, relay I（5）Normally opened contact, diode I
（2）Instrument（6）Mutually concatenate；
The diode I（2）Input further through wire and relay II（4）Coil input electrical connection.
A kind of 2. small type hydraulic excavator fuel filling prompt system according to claim 1, it is characterised in that：It is described after
Electrical equipment II（4）Coil and connect a diode II（8）.
A kind of 3. small type hydraulic excavator fuel filling prompt system according to claim 1 or 2, it is characterised in that：Institute
State relay I（5）Coil and connect a diode II（8）.
A kind of 4. small type hydraulic excavator fuel filling prompt system according to claim 1 or 2, it is characterised in that：Institute
State fuel filling prompt switch（3）Using self-resetting button switch.
A kind of 5. small type hydraulic excavator fuel filling prompt system according to claim 1 or 2, it is characterised in that：Institute
State instrument（6）Including controller and display screen, input and the fuel oil level sensor of the controller（7）It is connected, controller
Output end is connected with display screen, will gather fuel oil level sensor（7）Liquid level signal shown by display screen；The controller
Output end also with relay I（5）Coil be connected, for control relay I（5）Coil ground connection.
A kind of 6. small type hydraulic excavator fuel filling prompt system according to claim 5, it is characterised in that：The instrument
Table（6）Also include alarm, the input of the alarm is connected with the output end of controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720554426.0U CN206721968U (en) | 2017-05-18 | 2017-05-18 | A kind of small type hydraulic excavator fuel filling prompt system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720554426.0U CN206721968U (en) | 2017-05-18 | 2017-05-18 | A kind of small type hydraulic excavator fuel filling prompt system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206721968U true CN206721968U (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720554426.0U Active CN206721968U (en) | 2017-05-18 | 2017-05-18 | A kind of small type hydraulic excavator fuel filling prompt system |
Country Status (1)
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| CN (1) | CN206721968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498788A (en) * | 2020-04-22 | 2020-08-07 | 三一重机有限公司 | Fuel oil filling control system and control method |
-
2017
- 2017-05-18 CN CN201720554426.0U patent/CN206721968U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498788A (en) * | 2020-04-22 | 2020-08-07 | 三一重机有限公司 | Fuel oil filling control system and control method |
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