CN2204250Y - Low-pressure alarming device for tyre of motor vehicle - Google Patents
Low-pressure alarming device for tyre of motor vehicle Download PDFInfo
- Publication number
- CN2204250Y CN2204250Y CN 94240921 CN94240921U CN2204250Y CN 2204250 Y CN2204250 Y CN 2204250Y CN 94240921 CN94240921 CN 94240921 CN 94240921 U CN94240921 U CN 94240921U CN 2204250 Y CN2204250 Y CN 2204250Y
- Authority
- CN
- China
- Prior art keywords
- tyre
- signal generator
- low
- alarming device
- motor vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a low-pressure alarming device for tyre of a motor vehicle. The utility model is composed of a signal generator and a travel switch which are connected through conductors. When the utility model is installed, the signal generator can be installed at the lower face of an instrument panel, and the travel switch is installed at one side of a wheel. When air leak of the tyre reaches certain degree, the signal generator carries out alarm to remind a driver stopping the motor vehicle to deal with.
Description
The utility model relates to a kind of warning device, especially a kind ofly is used for automobile tyre gas leakage and reaches to a certain degree warning device.
The safety alarm device of relevant some parts of self-propelled vehicle, its technical scheme is a lot of, but relevant tire low-pressure alarming device does not appear in the newspapers as yet.Because be extruded the tire of damage because of gas leakage countless, especially lorry, almost therefore each car is damaged tire (in travelling every year more than once, trailing wheel or trailer car tyre gas leakage, chaufeur is difficult for finding), again because the tire price is more expensive, therefore, economic loss is huge, and in addition, the traffic accident and the personal casualty that cause therefrom also happen occasionally.Thereby, seek a kind of tire flat for many years and reach to a certain degree the warning device that (for example about half gaseity) reminds chaufeur to stop and handle, by a lot of relevant experts are paid attention to.
The purpose of this utility model provides a kind of warning device can make chaufeur find in time that tire low pressure surpasses to a certain degree the time.
Realize by following measure in the purpose of this utility model: this warning device signal is formed by connecting by lead by producer, travel switch.
The purpose of this utility model also can realize by following measure: signal generator is by body and place indicator lamp, the socket on the body and be positioned at body and the signal generating circuit that is connected with indicator lamp, socket constitutes.
When installing and using, signal generator can be contained in the pilot dial plate below, travel switch is contained in wheel one side, connect with lead.In vehicle ', when tire caused low pressure or passive state owing to gas leakage, tire lower part (ground connection place) broadened, thereby touch travel switch ground connection, alerting signal promptly takes place in circuit turn-on, signal generator, make chaufeur parking changing of tire, thereby avoided tire to be extruded damage.
Fig. 1 is that the automobile tyre low-pressure alarming device shows intention;
Fig. 2 is an automobile tyre low-pressure alarming device circuit diagram.
Wherein: 1-signal generator, 2-lead, 3-travel switch, 4-sound window, 5-power light, 6-body, 7-socket, 8-plug, 9-travel switch circuit, 10-signal generating circuit.
Be described further below in conjunction with accompanying drawing:
To be installed on the automobile is example, signal generator 1 is contained in below the indoor gauge panel of vehicle drive, live wire entering signal producer 1, the plug 8 that is connected in lead 2 inserts sockets 7, power light 5 shows, zero line by lead 2 to travel switch 3 to ground connection.Travel switch 3 is installed in (two in main car, four in trailer) below the spring steel integrated circuit board screw of wheel inboard.
Form audio frequency oscillator by 3DG6, audio sound takes place by piezoelectric ceramic piece HTD27A in the sound signal of generation.Form ultralow-frequency oscillator by 3AG1 and 3AX31, produce low frequency signal, the interrupter duty of control audio frequency oscillator.30 Ω resistance and 3.3 μ electric capacity are formed the positive feed back network of ultralow oscillator, and the numerical value that changes these two elements can be adjusted the oscillation frequency of ultralow-frequency oscillator.The numerical value that changes 0.047 μ electric capacity and 1K Ω resistance changes the frequency of sound signal.D is an indicator lamp, K
1-K
6Be respectively travel switch 3, and connect with signal generator 1, wherein any travel switch 3 is subjected to the tyre side pressure all can conducting, makes signal generator 1 send signal.
Claims (2)
1, automobile tyre low-pressure alarming device is characterized in that being formed by connecting by lead (2) by signal generator (1), travel switch (3).
2, automobile tyre low-pressure alarming device according to claim 1 is characterized in that signal generator (1) is by body (6) and place indicator lamp (5), the socket (7) on the body (6) and be positioned at body (6) and the signal generating circuit (10) that is connected with indicator lamp (5), socket (7) constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240921 CN2204250Y (en) | 1994-07-01 | 1994-07-01 | Low-pressure alarming device for tyre of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240921 CN2204250Y (en) | 1994-07-01 | 1994-07-01 | Low-pressure alarming device for tyre of motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2204250Y true CN2204250Y (en) | 1995-08-02 |
Family
ID=33847826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94240921 Expired - Fee Related CN2204250Y (en) | 1994-07-01 | 1994-07-01 | Low-pressure alarming device for tyre of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2204250Y (en) |
-
1994
- 1994-07-01 CN CN 94240921 patent/CN2204250Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |