CN2135486Y

CN2135486Y - Monitoring and alarming device for low pressure tyre

Info

Publication number: CN2135486Y
Application number: CN 92224263
Authority: CN
Inventors: 张殿庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-10
Filing date: 1992-06-10
Publication date: 1993-06-09
Anticipated expiration: 2002-06-10

Abstract

The utility model relates to a monitoring and alarming device for the low air pressure of a tyre, which is suitable for the alarm for the low air pressure of all the vehicle tyres. The utility model is mainly composed of a box body, a casing, a pressure switch, a circuit of a signal generating part and a signal receiving alarm circuit, wherein the signal generating part is communicated with the signal receiving alarm part through the vehicle body. The circuit of the signal generating part is controlled by the pressure switch, the two circuits are both arranged in the casing respectively, the generating part is arranged on a steel ring between an inner tyre and an outer tyre, and the receiving part is arranged in the cab. The utility model has the advantages of novel structure, convenient installation and operation, low cost, security and reliability.

Description

Monitoring and alarming device for low pressure tyre

The utility model relates to a kind of tire infrabar monitor and alarm unit that is suitable for all vehicle tyre infrabar warning usefulness.

In various vehicular traffics, air-inflation tyre obtains using the most widely, the power actuated vehicle in the high-speed cruising particularly is as all size automobile, in on the way travelling, the deficiency that the tire pressure that causes by a variety of causes often occurs, and the driver often is difficult to timely discovery owing to concentrate one's energy to drive, cause tire to be scrapped, automobile is difficult to travel, even cause unexpected traffic accident, brings great loss, according to there being the people to add up, because of damaged tyres can cause loss more than several ten million yuan every year.Drivers are in order to reduce the loss at present, all be when car to tyre inspection once, reexamine during parking, the fact is, the situation of general air pressure deficiency occurs, all be to prick nail in running car, the cullet slag pierces through, and the stone pinnacle is broken, gas leakage etc. causes, travel in the way and break down, the driver is difficult to timely discovery, so drivers wish to have a kind of warning device to come promptly and accurately the signal that sends, thereby monitors the tire pressure situation at any time effectively, in case it is underinflation, just can in time stop, take measures, prevent the generation of accident.

Task of the present utility model is exactly the tire infrabar monitor and alarm unit that provides a kind of effective supervision tire infrabar to use to the public.

Task of the present utility model is to realize like this, principle according to the transceiving signal, adorn a small-sized signal generator in inside tires, its signal generator is controlled by a pressure spring switch, the signal that sends passes to supporting receiving unit and in time send alerting signal by loud speaker (loudspeaker) through vehicle body (as signal lead), so just timely parking maintenance of driver.

This utility model novel structure, easy to install, to report to the police accurately, cost is low, is easy to produce, and is widely applicable, the society and economy remarkable benefit.

Below in conjunction with accompanying drawing structure of the present utility model and condition of service are elaborated.

Fig. 1 is a structure scheme circuit of the present utility model, wherein:

A is that signal generation divides circuit, and B is a signal alarm part circuit.

Fig. 2 divides outward appearance structure schematic top view for signal generation.

Fig. 3 opens forward sight structural relation figure behind the lid for the signal generation branch.

Fig. 4 is the pressure switch construction scheme drawing.

Fig. 5 is the scheme of installation of signal generation branch in tire.

Fig. 6 is a warning part surface structure scheme drawing.

Fig. 7 is a warning partial interior structural representation.

Extremely shown in Figure 7 by Fig. 1, the utility model comprises that signal generation divides and signal receives the warning part, and two parts couple together as lead by vehicle body, form whole monitor and alarm unit, signal generation divides and reception is reported to the police, and part is contained in the box body respectively, and concrete detailed structure is:

The signal generation branch: box case 1 is made diamondwise by alloy aluminum, top area 35mm * 60mm, floor space is 50mm * 78mm, height is 18mm, metal case top has pressure switch hole 10, pressure switch 2 is stretched out the box body outside by hole 10, pressure switch is by shell 12, spring 13, pressure surface 11, interior contact spring 16, shell aperture 19, circuit board support 14, outer conductive contact 15, point of connection 17, fixing threaded hole 18 is formed, on the spring 13 of pressure surface 11 in shell 12, interior contact spring 16 is drawn through shell aperture 19, lean against on the insulator chain board mount 14, outer conductive contact 15 is arranged on the support, circuit board support 14 is fixed on through point of connection 17 at the end of shell 12, and pressure switch is fixed on the bottom 6 of box case 1 through the fixing threaded hole 18 usefulness screws 8 of shell 12 bottoms, and circuit card 5 is fixed on the circuit board support 14, the signal generating circuit of being made up of the RCBBG element is contained on the circuit card 5, mouth lead-in wire 3 is drawn through fairlead 4 and is connect vehicle body, and for safety durable more, shell 1 top is with rubber cushion cover 7, shell 1 is fixed together through screw 9 by screw with bottom 6, the pressure switch spring requires in the tire internal gas pressure can make during at 4 air pressure contact spring 19 to connect outer conductive contact 15, and conductive contact is adjustable, adjusts the digital change of conductive contact air pressure alarm, consider the power consumption problem, machine was not worked when this control circuit was designed to not inflate, and did not work when air pressure surpasses 4 air pressure, so machine consumed power not in the ordinary course of things.A part signal generating unit is divided circuit partial frequently signal control and HF oscillation two parts, and its principle of work is, after pressure switch makes power connection, and voltage transformer B ₁Secondary through R ₄, R ₅, C ₂, C ₃Signal is added to BG ₁Base stage is again through BG ₁, C ₄, R ₁, R ₂Utmost point amplification is added to BG to AC signal before forming ₂Base stage is again via C ₅, R ₂, BG ₂, BG ₃, R ₃, C ₇, C ₆, voltage transformer B ₁Carry out hybrid power and amplify, by C ₁₀, C ₁₁, C ₁₂, B ₂Form HF oscillation, oscillation frequency is about 50MHZ, through magnetic induction loop B ₃Connect the axletree steel ring, adjust voltage transformer B ₂Magnetic core can change frequency size, R ₇, C ₈, C ₉, R ₆, R ₈, R ₉, BG ₄Form electric current and amplify to the oscillating circuit makeup energy, keep electric field continuity work, the signal after the amplification is replaced through lead-in wire 3(vehicle body by mouth) be sent to and receive the warning part.It is C that present embodiment adopts circuit component numerical value ₁100 μ f, C ₂103Pf, C ₃473Pf, C ₄103Pf, C ₅203Pf, C ₆203Pf, C ₇47 μ f, C ₈10Pf, C ₉30Pf, C ₁₀22Pf, C ₁₁22Pf, C ₁₂502Pf, R ₁580K Ω, R ₂4.2K Ω, R ₃80 Ω, R ₄700 Ω, R ₅10 Ω, R ₆5.6K Ω, R ₇22K Ω, R ₈100 Ω, R ₉20 Ω, BG ₁, BG ₂3BG ₆, BG ₃9013, BG ₄3DG ₈, voltage transformer B ₁Adopt the pocket radio set output transformer, B ₂ Magnetic core 4 * 8, Q0.31 line 1-2.3 1/5 circle, 1-3.2 4/5 circle, 4-5.1 1/5 circle,, B ₂1-2.12 1/2 circle, Q0.8 line magnetic core 4 * 8, power supply is the 3V small dry battery.

Signal replaces through lead 3 and 29(vehicle body) be sent to and receive the warning part, this part-structure is that shell 25 is midget receiver box body shape, indicator lamp 26 is equipped with through indicator lamp hole 32 in its housing face-plate front portion, via power switch hole 34 source switch 27 is housed, via bellmouth orifice 31 loudspeaker 33 are housed, leaded hole 28, top, received signal lead-in wire 29 is arranged in the hole, one side has power supply lead wire hole 35 and lead wire of conductor 30, and circuit card 36 is housed in the box body, and the signal of being made up of the RCBBG element receives the warning circuit dress thereon, receiving warning circuit selects ripple to amplify by high frequency, the one-level sound is put, and the secondary sound is put, three grades of power amplifiers, induction coil B is partly formed in relay control and warning etc. ₄, voltage transformer B ₅, capacitor C ₁₄, C ₁₅Form the vibration frequency-selecting, adjust B ₅Frequency can change, C ₁₃Strobe capacitor C ₁₆, C ₁₈, resistance R ₁₂, R ₁₃, R ₁₄, R ₁₁, aerotron BG ₅Form signal current and amplify, through C ₁₇, W potential device R ₁₅, C ₁₉Be added to BG ₆On the base stage, by R ₁₁, R ₁₇, R ₁₈, R ₁₉, R ₂₀, R ₂₂, C ₂₁, C ₂₄, C ₂₃Constitute one-level and amplify R ₂₁, R ₂₂, R ₂₃, C ₂₅, C ₂₆, C ₂₇, BG ₇, B ₆Elementary formation secondary amplifies, B ₆Secondary, BG ₈, diode D ₂, relay J, C ₂₈Constitute three grades of power gains, control relay break-make, R ₂₄, R ₂₅, R ₂₆, BG ₁₀, loudspeaker Y forms warning circuit, R ₁₀, D ₁Light-emitting diode is the relay indicating light signal, and in above-mentioned each element, present embodiment adopts R ₁₁8.2K, R ₁₂15K, R ₁₃20 Ω, R ₁₄6.5K, W4.7K, R ₁₅100 Ω, R ₁₆43K, R ₁₇5.6K, R ₁₈3.3K, R ₁₉100 Ω, R ₂₀1K, R ₂₁18K, R ₂₂4.7K, R ₂₃560 Ω, R ₂₅100 Ω, R ₂₆20 Ω, C ₁₃100 μ f, C ₁₄502Pf, C ₁₅22Pf, C ₁₆30Pf, C ₁₇10 μ f, C ₁₈502Pf, C ₁₉1 μ f, C ₂₀200Pf, C ₂₁100Pf, C ₂₂0.1 μ f, C ₂₃1 μ f, C ₂₄10 μ f, C ₂₅180Pf, C ₂₆0.022 μ f, C ₂₇47 μ f, C ₂₈50 μ f, C ₂₉0.47 μ f, D ₁1A50V, BG ₅3DG ₈, BG ₆3DG ₆, BG ₇3DG ₆, BG ₈3DG ₁₂, BG ₉3DG ₂1, BG ₁₀3DG ₁₂, JJRX-13F ₁12V, Y8 Ω, B ₅ Magnetic core 4 * 8Q0.31 line (1-2) 3 1/5 circles, (1-3) 2 4/5 circles, (4-5) 1 1/5 circles, B ₄ Magnetic core 4 * 8, Q0.8 line 12 1/2 circles, B ₆The pocket radio set input transformer, power supply can utilize automobile storage battery.

When using by dress, signal generation integral part 24 is placed in rim strip 22 the insides, in be with 21 outsides, band in the small size contact, the pressure surface 11 that is pressure switch contacts with interior band, and rim strip and signal generation integral part are contained in the indentation, there of cover tire 20, and cover tire is stuck in steel ring 23 grooves, output line 3 is connected with vehicle body by the steel axle, 29 be input to signal receive section through going between, signal receive section is placed in the driver's cab, can monitor tire internal gas pressure situation easily at any time, the internal band of this machine can not cause damage, very little assuming diamond in shape is the R angle entirely and thin for part shell 1 because transmit, and does not promptly have the right angle, and casing also is lined with rubber cushion cover 7 outward, above little, below big, be the obtuse angle gradient, through on probation, be very safe.As seen from the above, the utility model is safe and reliable, is the advanced means that monitors the tire pressure situation at present, must receive praises from customers.

Claims

1, receive the tire infrabar monitor and alarm unit that the part of reporting to the police is formed by signal generation branch and signal, mainly form, it is characterized in that by shell, lead-in wire, circuit, pressure switch:

A, said signal generation branch are made up of shell 1, bottom 6, pressure switch 2, circuit card 5, lead-in wire 3, shell 1 top has pressure switch hole 10, pressure switch is stretched out box case by its hole, pressure switch is fixed on the bottom 6 through fixed orifice 18, circuit card is fixed on the support 14, and the circuit of being made up of the RCBBG element that transmits is contained on the circuit card 5, and shell and bottom are fixed together by screw 9, lead-in wire 3 is drawn through fairlead 4 by circuit output end and to be connect vehicle body

It is to be made of shell 25, circuit card 36, lead-in wire 29 that b, said signal receive the part of reporting to the police, indicator lamp 26 is equipped with through indicator lamp hole 22 in shell 25 panel front portions, via power switch hole 34 source switch 27 is housed, via bellmouth orifice 31 loudspeaker 33 are housed, leaded hole 28 on the shell is in the hole leaded 29, one side has source switch lead-in wire 35 and goes between 30, circuit card 36 is housed in the box case, is adorned thereon by the signal circuit taking alarm that the RCBBG element is formed, lead-in wire 29 connects with lead-in wire 3 through vehicle body.

2, tire infrabar monitor and alarm unit according to claim 1, it is characterized in that said pressure switch 10 structures are that spring 13 is arranged in the shell 12, pressure surface 11 is arranged above the spring, interior contact spring 16 is drawn through shell aperture 19, lean against on the insulcrete support 14, outer conductive contact 15 is arranged on the support, and circuit board support 14 is fixed on through point of connection 17 at the end of shell 12, and shell 12 is fixing by screw 8 with bottom 6.

3, tire infrabar monitor and alarm unit according to claim 1 is characterized in that shell 1 assumes diamond in shape, and is upward little, big down, is the obtuse angle gradient, and rubber cushion cover 7 is arranged on it.

4, tire infrabar monitor and alarm unit according to claim 1 is characterized in that said signal generation parallel circuit is controlled by sound signal and HF oscillation two parts are formed voltage transformer B ₁The inferior utmost point is through R ₄, R ₅, C ₂, C ₃Signal is added to BG ₁Base stage is again through BG ₁, C ₄, R ₁, R ₂Utmost point amplification is added to BG to AC signal before forming ₂Base stage is again through C ₅, R ₂, BG ₂, BG ₃, R ₃, C ₇, C ₆, voltage transformer B ₁Carry out hybrid power and amplify, by C ₁₀, C ₁₁, C ₁₂, B ₂Form HF oscillation, R ₇, C ₈, C ₉, R ₆, R ₉, BG ₄Form electric current and amplify, give the oscillating circuit makeup energy, the signal after the amplification by mouth through going between 3, magnetic induction loop B ₃Be sent to reception warning part through vehicle body.

5, tire infrabar monitor and alarm unit according to claim 1 is characterized in that said reception warning partial circuit is to select ripple to amplify by high frequency, and the one-level sound is put, and the secondary sound is put, three grades of power amplifiers, and the relay control and the part of reporting to the police are formed induction coil B ₄, voltage transformer B ₅, capacitor C ₁₄, C ₁₅, form the vibration frequency-selecting, capacitor C ₁₆, C ₁₈, resistance R ₁₂, R ₁₃, R ₁₄, R ₁₁, aerotron BG ₅Form signal current and amplify, through C ₁₇, the W potential device, R ₁₅, C ₁₉Be added to BG ₆On the base stage, by R ₁₆, R ₁₇, R ₁₈, R ₁₉, R ₂₀, R ₂₂, C ₂₁, C ₂₄, C ₂₃Constitute one-level and amplify R ₂₁, R ₂₂, R ₂₃, C ₂₅, C ₂₆, C ₂₇, BG ₇, B ₆Just the utmost point constitutes secondary amplification, B ₆Secondary, BG ₈, diode D ₂, relay J, C ₂₈Constitute three grades of power gains, control relay break-make, R ₂₄, R ₂₅, R ₂₆, BG ₁₀, loudspeaker Y forms warning circuit, the signal of assigning to from signal generation is through vehicle body, lead-in wire 29, B ₄Send into receiving end.