CN104634422A - Dipstick with warning function - Google Patents

Abstract

The invention relates to an oil starvation warning device of an engine, in particular to a dipstick with a warning function. All components are installed on the dipstick, so the dipstick is called as the warning dipstick. An existing dipstick does not have the warning function. Miniature components are adopted in the dipstick, a magnetic attracts a reed pipe and a foam floater enables the magnetic to float, so switch-on and switch-off of a power are controlled, all the components can be installed on the dipstick, and the functions of sounding and control are achieved. The dipstick is simple in structure, small in size, low in cost, convenient to install, use, replace and maintain, and obvious and visual in effect. A user only needs to unscrew an original dipstick from a machine and installs the dipstick on the machine or installs the dipstick in the process of producing the machine, and the dipstick can give a warning and remind the user of oiling in case of oil starvation. Accordingly, the unnecessary trouble and damage that a vehicle can not drive and the engine can not work due to piston seizure or damage of a gearbox because of oil starvation can be prevented. The dipstick with the warning function can be applied to motorcycles, cars, tractors, engines and refrigerators.

Description

Warning dipstick

Technical field

The present invention relates to a kind of engine oil starvation warning device, especially there is the warning dipstick of warning function.All elements are installed on dipstick, and constitute a complete independently warning system, install and use very convenient, effect is obvious especially.Can be arranged on motorcycle, tractor, automobile, diesel engine, engine, refrigerating machine.Send chimes of doom warning people during oil starvation to refuel.

Background technology

The dipstick of current machine does not have warning function, as motorcycle, tractor, automobile, diesel engine, engine, refrigerating machine etc., a lot of machine does not have machine oil show yet.Even some machine as automobile, motorcycle installed the complex structure such as bayonet gauge, pilot lamp, install difficult, cost is high, also because do not have the sound often to be ignored by people or do not note causing the generation of serious problems.People to check up Engine oil number also must back out dipstick, sometimes also twist not get off without instrument, screw down and must wiping try again, not only bothered but also very dirtyly also badly held oily amount.

In order to solve the problem, all for sounding alarm components and parts are all arranged on dipstick by the present invention, have namely made warning dipstick.Dipstick is installed alarm required components and parts all to be arranged on because the volume of dipstick is little above be difficult to, warning function be realized just more difficult.Such as want sounding just to need loudspeaker, signal source, amplifier, power supply, also need switch.But also switch to be opened when oil starvation, oily enough time closing switch.Use existing float to install not enter, use other sensor or need lead-in wire, or need power consumption at ordinary times, and the present invention's not power consumption at ordinary times, just electricity consumption when only having oil starvation to report to the police.

Summary of the invention

The present invention relates to a kind of engine oil starvation warning device, especially there is the warning dipstick of warning function.All components and parts are all arranged on dipstick, form the warning dipstick of an independent completion, can be arranged on motorcycle, tractor, automobile, diesel engine, engine, refrigerating machine.Sound when machine oil starvation warning, warning people refuel.Because the volume of dipstick is very little, at such narrow space, loudspeaker, signal source, amplifier, power supply, switch to be installed, also will open switch when oil starvation, oily enough time closing switch just must sensor installation, little sensor is not opened switch, and large sensor is installed not enter.This just needs all components and parts miniaturizations, microminiaturization, also must realize all functions.As installed alarm on typical motorcycle engine oil gauge, just needing at diameter is 16mm, the space mounting dipstick shell of length 120mm, loudspeaker, signal source, amplifier, power supply, switch, sensor device.Present invention employs small-sized waterproof piezoelectric active buzzer and solve loudspeaker, signal source, amplifier problems, as long as switch on power just can send chimes of doom, size only has diameter 9mm, high 7.5mm, the sound of more than 80 decibels (dB) can be sent, can meet under steam or needs in working in larger noisy environment.And sensor employing is tongue tube, permanent magnet, foam plastic float.The long 14mm of tongue tube, diameter 2.8mm.Permanent magnet can adopt ring-shaped magnet or bar magnet, adopt kicker magnet material can make volume and weight less, what the present invention adopted is ring-shaped magnet, be of a size of external diameter 13mm, internal diameter 7mm, thickness 1.5mm, completely can the reed of adhesive tongue tube, turn on-switch.Float can be made with light materials such as foams, also can adopt air bag.What the present invention adopted is foam plastic float, is of a size of external diameter 11mm, internal diameter 5mm, high 25mm, can floats together with magnet ring on pasta completely.Wrong report is produced in order to avoid alarm travels the vibration that is in operation of moderately gusty air and engine at vehicle, the present invention devises a voltage stabilizer, exactly the spiracle of the top of the cylinder of dress sensor is opened smaller, make the turnover amount of air that violent change can not occur, in pipe also can not there is acute variation in oil mass, serve pressure stabilization function, alarm would not frequently be reported to the police and report by mistake.

The principle of work of alarm is the oil level decline of the fuel tank when oil starvation, float and magnet ring also decline thereupon, magnet ring, close to tongue tube, makes the normally opened contact adhesive of tongue tube, connects the power supply of alarm, alarm equipment alarm, when not oil starvation, oil level is high, and the position of float and magnet ring is also high, above tongue tube, tongue tube can not by adhesive, and alarm is in open-circuit condition not sounding.Alarm not power consumption at ordinary times, just power consumption when only having warning sounding, substantially prolongs the life-span of battery and reduces use cost.

Alarm will be arranged on dipstick and just need all components and parts to being arranged on dipstick, wanting to realize sounding alarm must have loudspeaker, signal source, amplifier, power supply, sensor.The present invention have employed waterproof piezoelectric active buzzer to reduce volume, as long as connect with the mains just energy sounding, power acquisition 3 button cells.The switch how realizing power supply is the maximum difficult problem of the present invention, and common float is installed not enter, install enter also cannot driving switch break-make.Present invention employs tongue tube, break-make that permanent magnet, foam plastic float achieve power supply.Because installing space is little, the piezoelectric active buzzer that the present invention adopts is of a size of diameter 9mm, high 7.5mm, can send the sound of more than 80 decibels (dB), can meet under steam or needs in working in larger noisy environment.The permanent magnet magnet ring adopted in order to weight reduction is of a size of external diameter 13mm, internal diameter 7mm, thickness 1.5mm.Also can adopt small-sized bar magnet, adopt strong magnetic magnet can do less by volume.Float is that foam is made and is of a size of external diameter 11mm, internal diameter 5mm, high 25mm, other light material also can be adopted to make or qi of chong channel ascending adversely capsule.Together with magnet ring has been bonded at foam plastic float, define a hollow cylinder, be enclosed within the outside of tongue tube, there is the end of magnet ring upward, then be arranged in the cylinder of dipstick together with chi core, when the liquid level generation high and low position change of oil, the high and low position of foam plastic float and permanent magnet is also along with change, when the oil mass of fuel tank is sufficient, the liquid of oil is high, the position of magnet is also high, have left tongue tube, tongue tube can not adhesive, normally opened contact is in normally open, warning circuit is in open-circuit condition, alarm does not work, when oil mass reduce liquid level drop to affect engine operation time, the position of magnet drops to the position making tongue tube adhesive, tongue tube is by adhesive, normally opened contact is closed connects warning circuit, hummer sends alarm sound, people are reminded to refuel.If also can the volume of sensor be done very little shown in employing Fig. 5, a contact, two contacts.If adopt Fig. 3 circuit can realize refueling enough sound or light alarm.

Wrong report is produced in order to avoid alarm travels the vibration that is in operation of moderately gusty air and engine at vehicle, the present invention devises a voltage stabilizer, exactly the spiracle 9 of the top of the cylinder of dress sensor is opened smaller, make the air turnover amount in pipe that violent change can not occur, serve pressure stabilization function, alarm would not frequently be reported to the police wrong report.

Due to microminiaturization of the present invention, miniaturization, all components are arranged on dipstick, and achieve the simplification of installation, replacing, maintenance, cost is low.Successful, directly perceived, need to send chimes of doom when refueling, easily arouse attention.When people are busy with affairs, the time of forgetting, when ignoring, the Shi Douhui that do not want to take the trouble notifies you, avoids occurring larger trouble and loss.Although dipstick all installed by a lot of vehicle, engine, machine, be mute, easily ignored by people, checked also cumbersome, also easy type is dirty hand and clothes.Installed oil meter, pilot lamp be also mute, oil starvation is not easy to be found, and is easily ignored by people, notifies that the best way that people refuel is sound or language.

The mechanical recoverable amounts such as current motorcycle, automobile, tractor, engine, refrigerating machine are very large, be widely used in industrial and agricultural production and daily life, say that part goes wrong from the overall situation and bring tremendous influence and loss to industrial and agricultural production and daily life.If this volume of universal use the present invention is little, cost is low, successful is installed and used warning dipstick easy to maintenance and will be produced huge Social and economic benef@.

Embodiment

The present invention is described below for common motorcycle dipstick:

This dipstick threaded portion diameter 18mm, motorcycle dipstick screw thread with under lower part saw, makes a call to a hole in threaded portion axial centre and beats to make sound pass to outside, the silk of hole inside fire attack M12.With nylon bar, to process an external diameter be length that 16mm internal diameter 10mm one end is closed is that the cylinder of 36mm is referred to as battery case, the outer silk of other end cover M12 loads the screw-internal thread fit of hummer, button cell group, spring and crude oil chi threaded portion aft-loaded airfoil, with the plastic conduit of thin-walled external diameter to be 16mm length be 90mm and battery case glued together, threaded engagement is adopted in batch production, form the dipstick that a 120mm is long, decorative pattern is carved with in the outside of bottom pipe, replaces original dipstick effect.Tongue tube be welded on one section harder

Diameter is one end non-magnetic wiry of 2mm, the other end is also fixed through the bottom centre of battery case and contacts with the positive pole of electric battery, magnet ring is bonded in one end of the cylinder made with foam and magnet ring is enclosed within tongue tube upward, penetrates one section of tinsel in the lower end radial direction of oil dipstick tube and prevent from passing outside pipe to block foam plastic float.Its total as shown in Figure 1.In order to be installed on dipstick by all components and parts, adopt the microminiaturized component of miniaturization as much as possible.What hummer 2 adopted is waterproof piezoelectric active buzzer, and parameter is: diameter 9mm, height 7.5mm, operating voltage 1.5 ~ 6V, frequency response 2.8KHz, signal to noise ratio (S/N ratio) >=80Db.

What electric battery 4 adopted is 3 button batteries.Tongue tube 7 is of a size of 14X2.8mm.What permanent magnet magnet ring 6 adopted is insert earphone magnet, in order to its thickness is ground to 1.5mm by weight reduction, is of a size of external diameter 13mm, internal diameter 7mm, thickness 1.5mm.What float 8 adopted is that the non-friable foam that do not absorb water is made, diameter 11mm, internal diameter 5mm, high 25mm.

During use, the present invention is screwed on oil hole, any lead-in wire need not be connected, float 8 and magnet ring 6 are immersed in oil by the agency part of gravity, magnet ring at upper end foam in lower end, oily enough time liquid level higher, the position of 8 and 6 is also higher, magnet leaves tongue tube, the tongue of tongue tube is not by adhesive, and normally opened contact is in normally open, and open circuit alarm does not work.When oil mass reduces, liquid level declines, float 8 also declines with the height of magnet ring 6 thereupon, when oil mass reduce to affect engine work time, magnet ring has dropped to the position that can make tongue tube adhesive, tongue tube adhesive, normally opened contact closes, and connects warning circuit, alarm sends chimes of doom, reminds people to refuel.In order to steady operation, do not make alarm report by mistake, it is spiracle that the present invention has opened an aperture 9 in the upper side of float cylinder, because hole is opened littlely serve pressure stabilization function.Its principle of work be when vehicle produce under steam jolt or engine be in operation produce vibration time, the oil in fuel tank can produce high vibration, and pasta can produce violent change, but violent change can not occur the oil mass in warning oil dipstick tube.The lower end of warning dipstick is opening, and oil enters from port, and the air in pipe is discharged from sucker 9, and because spiracle is smaller, unexpected change can not occur the oil mass in cylinder, and the oil level in pipe also can not acute variation, so alarm just can not frequently be reported to the police.

Fig. 3 has oily enough sound or light prompting warning dipstick cut-open view, with Fig. 1 difference be the increase in one have often open, the tongue tube 13 of normally closed contact and electrolytic condenser 12.Electrical schematic diagram is changed into as Fig. 4 makes warning dipstick have oil starvation warning, oily enough acousto-optics, sound or light prompt facility.Principle of work is that liquid level rising promotes float and magnet ring rising when oil is added to enough, magnet ring rise to tongue tube 13 can adhesive time tongue tube by adhesive, normally closed contact disconnects, normally opened contact closes the charge circuit having connected electrolytic condenser 5, now electric current gets back to the negative pole of power supply 2 from the positive pole-negative pole-resistor 6-capacitor 5-tongue tube 4-of the positive pole-hummer 1 of power supply 2, define loop, owing to being charged without electric charge in capacitor, electric current is had to pass through in loop, hummer sounding or light emitting diode 7 luminescence, when capacitor has been rushed electricity after a few second, electric current is not just had to have passed in circuit, hummer just stopped sounding or light emitting diode just stopped luminescence.But although now circuit is in on-state capacitor to have logical friendship not have electric current to flow through, so not power consumption in straight active circuits.When oil mass reduces, liquid level declines, magnet ring and float also follow decline, when magnet ring drops to the below of tongue tube 4, the tongue piece of tongue tube loses magnetic force and is released, and normally closed contact is connected again, and normally opened contact disconnects, capacitator charging circuit is disconnected and the discharge circuit of capacitor is switched on, what the electric charge now in capacitor got back to capacitor from the normally closed contact that positive pole flows through resistor 6-tongue tube 4 pays end, and capacitor is discharged, and waits for charging when next time refueling.In figure, capacitor 12 adopts withstand voltage 6.3V, and capacity is selected between 2200 ~ 4700 microfarads, and some discharge times, with regard to length some phonation time of hummer was also just longer, or the fluorescent lifetime of light emitting diode with regard to length a bit, also just between several seconds greatly for capacity.The effect of resistor 5 is that limiting capacitance device electric discharge initial stage electric current is excessive and extend capacitor discharge time, can extend the phonation time of hummer thus the capacity that can decrease capacitor reduces the volume of capacitor.

Fig. 4 and Fig. 2 is unlike adding the tongue tube that 4 have moving together contact, 5 electrolytic condenser, 6 resistors, 7 light emitting diodes.

Fig. 5 is the method for another kind of warning dipstick power switch, with Fig. 1 Fig. 3 unlike not having tongue tube, does not have magnet, directly by the break-make of float band moving contact switch 7.That the another kind realizing power source of alarm break-make is selected.

accompanying drawing explanation

Fig. 1 is the cut-open view of warning dipstick.

Fig. 2 is warning dipstick electrical schematic diagram.

Fig. 3 has oily enough sound or light prompting warning dipstick cut-open view.

Fig. 4 has oily enough sound or light prompting warning dipstick electrical schematic diagram.

Fig. 5 is the warning dipstick cut-open view adopting electric shock float switch.

Claims (7)

1. on dipstick, alarm is installed.

2. all components and parts are all arranged on dipstick.

3. replace loudspeaker and signal source and amplifier with piezoelectric active buzzer.

4. make switch with permanent magnet and tongue tube.

5. there is oily enough prompt functions and comprise Fig. 4 circuit.

6. adopt liquid stabilizing pipe steady operation.

7. adopt float contact switch.