CN2094054U - Electronic gas-pressure measuring indicating device - Google Patents
Electronic gas-pressure measuring indicating device Download PDFInfo
- Publication number
- CN2094054U CN2094054U CN 90211805 CN90211805U CN2094054U CN 2094054 U CN2094054 U CN 2094054U CN 90211805 CN90211805 CN 90211805 CN 90211805 U CN90211805 U CN 90211805U CN 2094054 U CN2094054 U CN 2094054U
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- CN
- China
- Prior art keywords
- display device
- diode
- air pressure
- resistance
- light emitting
- 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 - Lifetime
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Abstract
The utility model relates to an improved air pressure measurement and display device, particularly an electronic air pressure measurement and display device which can be used for visually displaying air pressure numerical values on an automobile and other pressure vessels. The utility model is composed of a diode, a current limiting resistor, a capacitor, a unijunction transistor, a buzzer, a light emitting diode and a sensor, wherein, air pressure variation signals of the sensor can be changed to electrical signals; the electrical signals can be sent to an electronic circuit and can cause the light emitting diode to emit light. The red luminescence diode can emit flashing when the improved air pressure measurement and display device in a low pressure state, and the buzzer can generate alarm sound. The utility model has the advantages of vibration resistance, long service life, reliable operation, strong anti-interference ability and convenient use.
Description
The utility model belongs on a kind of improved barometric surveying display device, particularly automobile or other pressure vessels electronic type barometric surveying display device in order to demonstration air pressure numerical value directly perceived.
The barometric surveying display device of using on automobile and other pressure vessels is mainly pointer-type at present, this instrument is mechanical realization fully, use on automobile the time because violent mechanical vibration, the easy hair fastener of pointer, thereby it is unreliable to work, life-span is short, pointer instrument indication simultaneously not intuitively, not eye-catching, particularly outstanding at driving at night; In addition, that connect rain glass and pressure vessel is φ 10mm, is about the copper pipe of 3m, this has not only increased material consumption, has increased cost, and makes the junction loosening or leak gas because of wearing and tearing under violent mechanical vibration easily, cause read untrue, pressure vessel air pressure is not enough and make driving dangerous.
The purpose of this utility model provides the electronic type barometric surveying display device that a kind of all electronic component constitutes, particularly be applied on the automobile, vibration resistance, long-life, simple in structure, reliable operation, air pressure no matter shows in the daytime or night is all clear, bright, accurate, when air pressure drops to dangerous pressure, send sound and light alarm.
The utility model is to implement like this: be connected with resistance with the corresponding sensor of air pressure change, this resistance electronic circuit interior with being installed in gauge outfit is connected, air pressure change signal on the sensor is become electric signal, again electric signal is become light signal, show by the mode of display device with light.According to the luminance of display device or the number of lumination of light emitting diode, just as can be known in the pressure vessel air pressure what also have.It is indoor that this covering device is installed in car steering, just make the driver know the automobile atmospheric pressure value in the pressure vessel in motion easily, the buzzer and the red light emitting diodes that have also had the warning effect simultaneously on this device, make the driver can know clearly that air pressure has dropped to dangerous values, remind the driver to take the necessary measures.This device can be designed to the barometric surveying device that matches with the different model pressure vessel, thereby highly versatile, and is easy to use, adopts all electronic structure, do not have machinery motion wearing and tearing, serviceable life big leap ahead.
Describe in further detail below in conjunction with accompanying drawing:
Figure (1) is an electrical schematic diagram of the present utility model.
Figure (2) is the Pareto diagram of light emitting diode on dial plate.
From figure (1) as seen: the utility model is made up of electronic circuit and sensor two parts, and wherein electronic circuit partly is installed in the gauge outfit (14) of figure (2), and with lead gauge outfit (14) and sensor (18) is interconnected (see figure 2).
From figure (1) as seen: shared current-limiting resistance R, diode (1), current-limiting resistance (2), display device (3), warning branch road (4) constitute electronic circuit; Divider resistance (8), slider (9), contact block (10), connecting rod (11), bourdon tube (12), draft tube (13) constitute sensor.Draft tube (13) is connected with pressure vessel, makes bourdon tube (12) gassy; When vessel internal pressure power changed, bourdon tube deformed because of pressure reduction, and its free end drivening rod (11) rotates; Slider on the connecting rod is slided, thereby contact, constitute different loops, also just controlled the sounding of the luminous and buzzer of display device (3), (5) with different contact block (10).
As seen from Figure 1: when slider (9) and e contact block (10) when contacting, electric current flows through resistance R, diode (1), resistance (2), display device (3) to power cathode from positive source, makes the light emitting diode of display device (3) bright entirely.Thereby can see that on the scale mark (17) of Fig. 2 surface (15) numeral " 10 " this numeral air pressure is 10 kg/cm topmost; When slider (9) respectively with d, c, b contact block (10) is when contacting, electric current flows through resistance R from positive source, diode (1), resistance (2), display device (3), resistance (8) is to power cathode, constitute the closed-loop path, owing to seal in resistance (8), loop current is reduced, (7) the some current potential raises, the light emitting diode that makes display device (3) is by only extinguishing, thereby numeral is " 8 " above can seeing respectively on the scale mark (17) of Fig. 2 surface (15), " 6 ", " 4 ", expression air pressure drops to 8,6 or 4 kg/cm.
When air pressure continuation decline, the free end drivening rod (11) of bourdon tube (12) rotates, and slider (9) is contacted with a contact block (10), and electric current flows through resistance R from positive source
1, R
2, capacitor C, unijunction transistor B
G, display device (5) and buzzer (6) be to power cathode; Because discharging and recharging of capacitor C, make this loop produce vibration, display device (5) and buzzer (6) flow through oscillating current, flash and intermittence tone, play the sound and light alarm effect, can see numeral " 2 " this moment on the scale mark (17) of Fig. 2 surface (15), expression air pressure drops to 2 kg/cm and following, reminds the driver in time to take measures.
Electronic type barometric surveying display device of the present utility model, can select the contact block (10) of varying number according to actual needs, select the diode (1) and the display device (3) of respective numbers again, select appropriate resistance (2) and resistance (8), thereby reach the requirement that shows the needed degree of accuracy of air pressure.
Present embodiment can adopt the light emitting diode of different colours so that reach the purpose of demonstration pressure vessel internal gas pressure directly perceived.The arrangement of light emitting diode on dial plate can be circular arc or linear, can horizontally-arranged or vertical setting of types.
Claims (8)
1, be a kind of electronic type barometric surveying display device, have the sensor that can obtain the air pressure change signal that is installed on the pressure vessel, also have an electronic circuit that is installed in the gauge outfit, it is characterized in that:
A, sensor are made up of draft tube (13), bourdon tube (12), connecting rod (11), slider (9), contact block (10) and resistance (8);
B, electronic circuit have shared current-limiting resistance R, and diode (1), display device (3) are connected with some corresponding current-limiting resistances (2) between diode (1) and display device (3), also have a warning branch road (4);
C, warning branch road (4) are made up of resistance R 1, R2, capacitor C 1, unijunction transistor BG, light emitting diode (5) and buzzer (6);
One end of the end of D, shared current-limiting resistance R and warning branch road (4) is electrically connected with positive source;
E, entire circuit are by sensor ground connection.
2, device according to claim 1.It is characterized in that electronic circuit adopts discrete component or discrete component and integrated circuit component to constitute.
3, device according to claim 1.It is characterized in that the used resistance of sensor can be solid dielectric resistance or wire-wound resistor.
4, device according to claim 1 and 2.It is characterized in that diode (1) adopts switching diode or commutation diode.
5, device according to claim 1 and 2 is characterized in that buzzer adopts piezoelectric ceramics to form.
6, device according to claim 1 and 2 is characterized in that the complete machine power supply is+12V or 24V.
7, device according to claim 1 and 2 is characterized in that display device (3), (5) employing light emitting diode.
8, according to claim 1 or 7 described devices, it is characterized in that the arrangement of light emitting diode on dial plate can be circular arc or linear, can horizontally-arranged or vertical setting of types, the luminous of light emitting diode can be red, yellow or green, and is warning coloured light with the red light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90211805 CN2094054U (en) | 1990-02-10 | 1990-02-10 | Electronic gas-pressure measuring indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90211805 CN2094054U (en) | 1990-02-10 | 1990-02-10 | Electronic gas-pressure measuring indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2094054U true CN2094054U (en) | 1992-01-22 |
Family
ID=4891542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90211805 Expired - Lifetime CN2094054U (en) | 1990-02-10 | 1990-02-10 | Electronic gas-pressure measuring indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2094054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051018A (en) * | 2017-05-27 | 2017-08-18 | 盐城市兰丰环境工程科技有限公司 | A kind of multistage environmental protection type dust arrester |
-
1990
- 1990-02-10 CN CN 90211805 patent/CN2094054U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051018A (en) * | 2017-05-27 | 2017-08-18 | 盐城市兰丰环境工程科技有限公司 | A kind of multistage environmental protection type dust arrester |
| WO2018218919A1 (en) * | 2017-05-27 | 2018-12-06 | 盐城市兰丰环境工程科技有限公司 | Multi-stage environmentally-friendly dust-removal apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |