CN203203748U - Voice broadcast type digital pressure gauge - Google Patents
Voice broadcast type digital pressure gauge Download PDFInfo
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- CN203203748U CN203203748U CN 201320132677 CN201320132677U CN203203748U CN 203203748 U CN203203748 U CN 203203748U CN 201320132677 CN201320132677 CN 201320132677 CN 201320132677 U CN201320132677 U CN 201320132677U CN 203203748 U CN203203748 U CN 203203748U
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Abstract
The utility model discloses a voice broadcast type digital pressure gauge. The pressure gauge can simultaneously carry out digital display and voice broadcast on the pressure value of an object to be measured in real time, and has the advantages of compact whole structure and easy carrying. The voice broadcast type digital pressure gauge comprises a pressure sensor, a digital control board, a signal conditioning board, a lithium battery board, a front panel, a casing body and a rear panel. The pressure sensor is used for collecting a pressure signal. The signal conditioning board carries out amplification processing on the pressure signal. The digital control board carries out real time broadcast on the pressure signal under the action of a voice chip.
Description
Technical field
Utility model relates to a kind of pressure gauge, is specifically related to a kind of voice broadcast type digital pressure gauge.
Background technology
When the fire fighter rescues in the scene of fire, need to be equipped with the aerial respiration gas cylinder, in order to ensure fire fighter's personal safety, the pressure of reply aerial respiration gas cylinder detects in real time, thereby know the residue tolerance of gas cylinder, so that the fire fighter in time withdraws the scene of fire.Pressure gauge on the existing market carries out the numeral demonstration of force value usually by liquid crystal display, general brightness is not high, is difficult to see clearly under the smog environment.And the fire fighter is when carrying out rescue work in the scene of fire, and inconvenience removes to check digital display screen frequently, thereby the fire fighter is caused very big potential safety hazard.
Because the fire fighter when rescuing, backs on the body the aerial respiration gas cylinder always, pressure gauge directly links to each other with the aerial respiration gas cylinder simultaneously.Therefore, for reducing fire fighter's burden, be convenient for carrying, should make the pressure gauge miniaturization as far as possible; Reliable for guaranteeing manometric use, pressure gauge should possess certain voltage endurance capability.
Summary of the invention
In view of this, the utility model provides a kind of voice broadcast type digital pressure gauge, can carry out real-time voice broadcast to the force value of object to be measured, and compact conformation.
Voice broadcast type digital pressure gauge of the present utility model comprises: pressure transducer, digital control plate, signal regulating panel, lithium battery plate, front panel, entrant sound plate, housing and rear panel.Described pressure transducer comprises sensor core, sensor housing and adapter.Described digital control plate comprises digital control plate upper plate and digital control plate lower plate.
Described housing is the columnar structured of both ends open, and front panel and rear panel are with the openend sealing of housing.The digital control plate upper plate of parallel placement, digital control plate lower plate, lithium battery plate and signal regulating panel successively between the enclosure interior, front panel and rear panel.
Described digital control plate upper plate is affixed with upper supporting column A and front panel by one.The described digital control plate upper plate face relative with front panel is considered as outside surface, and the face relative with digital control plate lower plate is considered as inside surface.Described digital control plate upper plate outside surface is connected with charactron, bi-colour LED, two keyswitches and hummer.Wherein the display screen of charactron passes front panel, force value is carried out numeral show.Bi-colour LED is used for the electric weight of display power supply.Described hummer is crossed low situation to object air pressure to be measured and is reported to the police.The position of hummer correspondence is equipped with the entrant sound plate on described front panel.The inside surface of described digital control plate upper plate is connected with one-chip computer module, display control circuit, hummer Drive and Control Circuit and chipspeech.Wherein chipspeech is finished required voice broadcast function under the control of one-chip computer module.
Link to each other with upper supporting column B by two between described digital control plate lower plate and digital control plate upper plate.Be connected with power transfer module, audio-frequency power amplifier, RS485 chip and electric current on the digital control plate lower plate and change voltage module.Described audio-frequency power amplifier links to each other with chipspeech, drives earphone or loudspeaker by the phonetic speech power amplifier.Described RS485 chip is realized the data remote function of pressure data.
Described lithium battery plate is fixed on the signal regulating panel, the power lead of lithium battery plate links to each other with power transfer module on the digital control plate lower plate, supplies with signal regulating panel, pressure transducer and one-chip computer module respectively after the power supply that described power transfer module provides the lithium battery plate is changed.
Described signal regulating panel and rear panel are affixed, and being connected with operational amplifier and voltage on the signal regulating panel changes current module.Signal regulating panel is realized the amplification of pressure signal is handled, and the voltage signal that receives is converted to current signal.Between described signal regulating panel and rear panel, insulating mat is installed.
Described pressure transducer is fixed on the horizontal ledge of housing periphery top processing.Sensor housing is the tubular construction with shaft shoulder, and Open Side Down places.The pressure transducer core body is positioned at sensor housing inside, carries out pressure seal between described sensor core and sensor housing inside surface.Simultaneously the surfaces externally and internally of sensor housing all is processed with screw thread, pressure transducer core body below, by have externally threaded nut and screw-internal thread fit, realize the locking to the pressure transducer core body.The excircle suit adapter of described sensor housing, the internal thread of described adapter and the external thread of sensor housing coupling.Described adapter below is mated by external thread and threaded hole on the housing and is connected.The output terminal of described pressure transducer core body links to each other with signal regulating panel.
Be connected with headset connector on the horizontal ledge of described housing periphery top processing, realize the voice broadcast of pressure by earphone or loudspeaker.
Described entrant sound plate is circular slab, and the face that the entrant sound plate is relative with hummer is considered as inside surface, and the face that is positioned on the front panel is considered as outside surface.Be evenly distributed with one with upper groove A at entrant sound plate outside surface along its longitudinal axis.At entrant sound plate inside surface, the correspondence position machined grooves B between per two groove A.Described each groove B and with it the overlapping back of running through of groove A adjacent and that be positioned at its below form sound penetrating hole.
External power source is lithium cell charging by described headset connector.
The junction of described front panel and housing junction, rear panel and housing junction, adapter and housing is separately installed with waterproof grommet.
Only when described two keyswitches were pressed simultaneously, pressure gauge just can be switched on.
Described pillar A evenly distributes at the circumferencial direction of digital control plate upper plate.The position of described pillar B is corresponding one by one with the position of pillar A.
Described nut adopts the nut of no shaft shoulder form.
The shaft shoulder of described adapter top and sensor housing is conflicted, and is gapped between the lower surface of sensor housing and the inside surface of adapter.
At the outside surface of described front panel and the equal pad pasting of outside surface of rear panel.
Beneficial effect:
(1) pressure gauge of this kind version, under the prerequisite that satisfies voice broadcast function and digital Presentation Function, compact conformation, easy to carry.
(2) integrated infrabar warning function, electric quantity of power supply Presentation Function and two button anti-misoperation functions make this device reliability height.
(3) whole device has been carried out waterproofing design, and adopted the entrant sound plate with certain water-proof function, this pressure gauge also can be used under rugged environment, after tested, this pressure gauge is supported IP54 level waterproof.
Description of drawings
Fig. 1 is one-piece construction synoptic diagram of the present utility model;
Fig. 2 is this manometric inner structure synoptic diagram;
Fig. 3 is the inner structure synoptic diagram of this pressure sensor part.
Wherein, 1-front panel, the digital control plate upper plate of 2-, the digital control plate lower plate of 3-, 4-lithium battery plate, 5-signal regulating panel, 6-pressure transducer, 7-headset connector, 9-entrant sound plate, 10-charactron, 11-keyswitch, the 12-pilot lamp, 13-hummer, 14-housing, the 15-sensor core, 16-sensor housing, 17-adapter, the 18-nut, 19-pillar A, 20-pillar B
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, the utility model is described in detail.
Present embodiment provides a kind of voice broadcast type digital pressure gauge that is used in fire-fighting system, this pressure gauge is linked to each other with fire fighter's aerial respiration gas cylinder, after the fire fighter enters the scene of fire, this pressure gauge can carry out real-time verbal cue and numeral demonstration to the force value in the aerial respiration gas cylinder, and this pressure gauge compact conformation, easy to carry.This manometric pressure acquisition scope is 0～30MPa in the present embodiment.
The one-piece construction of this voice broadcast type digital pressure gauge comprises pressure transducer 6, digital control plate, signal regulating panel 5, lithium battery plate 4, front panel 1, housing 14 and rear panel as shown in Figure 1.Wherein pressure transducer 6 comprises sensor core 15, sensor housing 16 and adapter 17.
Described housing 14 is tubular construction, and front panel 1 and rear panel are fixed in the axial two ends of housing 14 respectively by screw, form airtight hollow cylinder structure thus.Plate 1 is realized waterproof sealing by O-ring seal respectively with housing 14 junctions, rear panel and housing 14 junctions in front.For making the pressure gauge compact overall structure, save the enclosure interior space, make its miniaturization; Described digital control plate is divided into digital control plate upper plate 2 and digital control plate lower plate 3.The digital control plate upper plate 2 of parallel placement, digital control plate lower plate 3, lithium battery plate 4 and signal regulating panel 5 successively between housing 14 inside then, front panel 1 and rear panel, as shown in Figure 2.Adopt the layout type of this kind form, can dwindle manometric overall dimensions, make its compact conformation, to reach the requirement of miniaturization.
Described digital control plate upper plate 2 is affixed by equally distributed four the pillar A19 of its circumferencial direction and front panel 1.Described digital control plate upper plate 2 and front panel 1 relative face is considered as outside surface, and the face relative with digital control plate lower plate 3 is considered as inside surface.Affixed three charactrons 10 in the top of digital control plate upper plate 2 outside surfaces and bi-colour LED 12.The display screen of three charactrons 10 passes front panel 1 on the plate 1 in front, is positioned at front panel 1 outside surface, thereby shows manometric force value intuitively.Bi-colour LED 12 is used for the electric weight of display power supply, and when lithium battery forced down in setting value, red led was bright, and the prompting lithium battery needs charging; When lithium battery voltage was higher than setting value, green indicating lamp was bright, and the expression lithium battery does not need charging.Two keyswitches 11 of the centre position symmetric arrangement of digital control plate upper plate 2 outside surfaces, only when two keyswitches were pressed simultaneously, pressure gauge just can be switched on, and can prevent effectively that manometric mistake powers on, and improves the reliability of its use.The affixed hummer 13 in centre position of digital control plate upper plate 2 outside surface lower ends is reported to the police to the infrabar situation of gas cylinder; The force value of gathering when pressure gauge is during less than the 6MPa that sets, and hummer 13 starts, and carries out infrabar and reports to the police, and caution the fire fighter withdraw rapidly.The entrant sound plate 9 with water-proof function has been installed in the position of hummer 13 correspondences on described front panel 1, guarantee that the fire fighter carries out the scene of fire after, under the environment that fire truck is sprayed water, do not influence manometric use.Described entrant sound plate 9 is circular slab, and entrant sound plate 9 and hummer 13 relative faces are considered as inside surface, and the face that is positioned on the front panel 1 is considered as outside surface.Be evenly distributed with one with upper groove A at entrant sound plate 9 outside surfaces along its longitudinal axis.At entrant sound plate 9 inside surfaces, the correspondence position machined grooves B between per two groove A.Described each groove B and with it the overlapping back of running through of groove A adjacent and that be positioned at its below form sound penetrating hole.The inside surface of described digital control plate upper plate 2 is connected with one-chip computer module, display control circuit, hummer Drive and Control Circuit and chipspeech.Wherein chipspeech is finished required voice broadcast function under the control of one-chip computer module.
2 of described digital control plate lower plate 3 and digital control plate upper plates link to each other by equally distributed four the pillar B20 of its circumferencial direction, and the position of described pillar B is corresponding one by one with the position of pillar A.Be connected with power transfer module, audio-frequency power amplifier, RS485 chip and electric current on the digital control plate lower plate 3 and change voltage module.Described audio-frequency power amplifier links to each other with chipspeech, drives earphone by the phonetic speech power amplifier, to reach the function of voice broadcast.The RS485 chip is realized the data remote function of pressure data, is fit to length and transmits apart from pressure data.
Described lithium battery plate 4 is fixed on the signal regulating panel 5, the power lead of lithium battery plate 4 links to each other with power transfer module on the digital control plate lower plate 3, and the power supply that power transfer module provides lithium battery plate 4 is converted to the inner required power supply of pressure gauge and supplies with signal regulating panel, pressure transducer and one-chip computer module respectively.
Described signal regulating panel 5 is affixed by screw and rear panel, and being connected with operational amplifier and voltage on the signal regulating panel 5 changes current module.Signal regulating panel 5 is realized the amplification of pressure signal is handled, and the voltage signal that receives is converted to current signal, in case the decay of stop signal on transmission line.Between signal regulating panel 5 and rear panel, insulating mat is installed.
Because this pressure gauge needs directly to link to each other with the aerial respiration gas cylinder in use, is full of the pressurized air of 30MPa in the aerial respiration gas cylinder.So the part that this pressure gauge directly links to each other with the aerial respiration gas cylinder need possess certain voltage endurance capability.And when measuring, pressure transducer 6 links to each other with the bottleneck of aerial respiration gas cylinder, and therefore, answering pressure sensor 6 carries out withstand voltage design.Described pressure transducer 6 integral body are fixed on the horizontal ledge of housing 14 periphery tops processing.Sensor housing 16 is for having the tubular construction of the shaft shoulder, and Open Side Down places.Pressure transducer core body 15 is positioned at sensor housing 16 inside, carries out pressure seal between sensor core 15 and sensor housing 16 inside surfaces.The surfaces externally and internally of sensor housing 16 all is processed with screw thread simultaneously, pressure transducer core body 15 belows, by have externally threaded nut and screw-internal thread fit, realize the locking to pressure transducer core body 15, this nut adopts the nut of no shaft shoulder form simultaneously, with slip-off preventing.The excircle suit adapter 17 of this sensor housing 16, the external thread coupling of the internal thread of described adapter 17 and sensor housing 16, the shaft shoulder of adapter 17 tops and sensor housing 16 is conflicted, and is gapped between the inside surface of the lower surface of sensor housing 16 and adapter 17.Described adapter 17 belows are connected by the coupling of the threaded hole on external thread and the housing 14, thereby pressure transducer 6 integral body are fixed on the housing 14.In adapter 17 and the junction of housing 14 O-ring seal is installed, is realized waterproof sealing.The output terminal of described pressure transducer core body links to each other with signal regulating panel, thereby pressure signal is sent to signal regulating panel.
Be connected with headset connector 7 on the horizontal ledge of described housing 14 periphery tops processing, realize the voice broadcast of pressure by earphone.Can be lithium cell charging by described headset connector 7 simultaneously, dismounting pressure gauge in the time of can avoiding replacing or charging.
Equal pad pasting is beneficial to waterproof and attractive in appearance on described front panel and rear panel.
This manometric principle of work is: at first the bottleneck of pressure gauge with the aerial respiration gas cylinder linked to each other, the fire fighter opens the air respiratorresuscitator gas cylinder after entering the scene of fire, two keyswitches of pressing simultaneously on the pressure gauge front panel make the pressure gauge energising, and are with earphone or connect loudspeaker at headset connector.The pressure transducer core body is gathered the pressure signal (this signal is voltage signal) in the gas cylinder in real time; And this pressure signal sent to signal regulating panel, the operational amplifier on the signal regulating panel amplifies processing to this signal, and changes current module by voltage this voltage signal is converted to current signal (purpose: the anti-decay of stop signal on transmission line).Current signal after signal regulating panel will be changed sends to digital control plate, and digital control plate carries out the AD conversion after the current signal that receives is converted to voltage signal; Digital signal after digital control plate will be changed sends to the real-time demonstration that charactron carries out force value, simultaneously digital signal is sent to the language synthesis chip, realizes its sound prompt function.The force value of gathering when the pressure transducer core body is during less than setting value, and hummer starts, and carries out low pressure alarming, and prompting the fire fighter withdraw.
In sum, more than be preferred embodiment of the present utility model only, be not for limiting protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. voice broadcast type digital pressure gauge is characterized in that, comprising: pressure transducer (6), digital control plate, signal regulating panel (5), lithium battery plate (4), front panel (1), entrant sound plate (9), housing (14) and rear panel; Described pressure transducer (6) comprises sensor core (15), sensor housing (16) and adapter (17); Described digital control plate comprises digital control plate upper plate (2) and digital control plate lower plate (3);
Described housing (14) is the columnar structured of both ends open, and front panel (1) and rear panel are with the openend sealing of housing (14); The digital control plate upper plate of parallel placement (2), digital control plate lower plate (3), lithium battery plate (4) and signal regulating panel (5) successively between housing (14) inside, front panel (1) and rear panel;
Described digital control plate upper plate (2) passes through one with upper supporting column A(19) affixed with front panel (1); The face that described digital control plate upper plate (2) is relative with front panel (1) is considered as outside surface, and the face relative with digital control plate lower plate (3) is considered as inside surface; Described digital control plate upper plate (2) outside surface is connected with charactron (10), bi-colour LED (12), two keyswitches (11) and hummer (13); Wherein the display screen of charactron (10) passes front panel (1), force value is carried out numeral show; Bi-colour LED (12) is used for the electric weight of display power supply; Described hummer (13) is treated the low excessively situation of side object air pressure and is reported to the police; Go up the corresponding position of hummer (13) at described front panel (1) entrant sound plate (9) is installed; The inside surface of described digital control plate upper plate (2) is connected with one-chip computer module, display control circuit, hummer Drive and Control Circuit and chipspeech; Wherein chipspeech is finished required voice broadcast function under the control of one-chip computer module;
Between described digital control plate lower plate (3) and digital control plate upper plate (2) by two with upper supporting column B(20) link to each other; Be connected with power transfer module, audio-frequency power amplifier, RS485 chip and electric current on the digital control plate lower plate (3) and change voltage module; Described audio-frequency power amplifier links to each other with chipspeech, drives earphone or loudspeaker by the phonetic speech power amplifier; Described RS485 chip is realized the data remote function of pressure data;
Described lithium battery plate (4) is fixed on the signal regulating panel (5), the power lead of lithium battery plate (4) links to each other with power transfer module on the digital control plate lower plate (3), supplies with signal regulating panel, pressure transducer and one-chip computer module respectively after the power supply that described power transfer module provides lithium battery plate (4) is changed;
Described signal regulating panel (5) is affixed with rear panel, and being connected with operational amplifier and voltage on the signal regulating panel (5) changes current module; Signal regulating panel (5) is realized the amplification of pressure signal is handled, and the voltage signal that receives is converted to current signal; Between described signal regulating panel (5) and rear panel, insulating mat is installed;
Described pressure transducer (6) is fixed on the horizontal ledge of housing (14) periphery top processing; Sensor housing (16) is for having the tubular construction of the shaft shoulder, and Open Side Down places; Pressure transducer core body (15) is positioned at sensor housing (16) inside, carries out pressure seal between described sensor core (15) and sensor housing (16) inside surface; Simultaneously the surfaces externally and internally of sensor housing (16) all is processed with screw thread, pressure transducer core body (15) below, by have externally threaded nut (18) and screw-internal thread fit, realize the locking to pressure transducer core body (15); The excircle suit adapter (17) of described sensor housing (16), the external thread coupling of the internal thread of described adapter (17) and sensor housing (16); Described adapter (17) below is mated by external thread and threaded hole on the housing (14) and is connected; The output terminal of described pressure transducer core body (15) links to each other with signal regulating panel (5);
Be connected with headset connector (7) on the horizontal ledge of described housing (14) periphery top processing, realize the voice broadcast of pressure by earphone or loudspeaker.
2. voice broadcast type digital pressure gauge as claimed in claim 1 is characterized in that, described entrant sound plate (9) is circular slab, and the face that entrant sound plate (9) is relative with hummer (13) is considered as inside surface, and the face that is positioned on the front panel (1) is considered as outside surface; Be evenly distributed with one with upper groove A at entrant sound plate (9) outside surface along its longitudinal axis; At entrant sound plate (9) inside surface, the correspondence position machined grooves B between per two groove A; Described each groove B and with it the overlapping back of running through of groove A adjacent and that be positioned at its below form sound penetrating hole.
3. voice broadcast type digital pressure gauge as claimed in claim 1 is characterized in that, external power source is lithium cell charging by described headset connector (7).
4. voice broadcast type digital pressure gauge as claimed in claim 1, it is characterized in that described front panel (1) is separately installed with waterproof grommet with housing (14) junction, rear panel and housing (14) junction, adapter (17) with the junction of housing (14).
5. voice broadcast type digital pressure gauge as claimed in claim 1 is characterized in that, only when described two keyswitches were pressed simultaneously, pressure gauge just can be switched on.
6. voice broadcast type digital pressure gauge as claimed in claim 1 is characterized in that, described pillar A(19) evenly distribute at the circumferencial direction of digital control plate upper plate (2); Described pillar B(20) position and pillar A(19) the position corresponding one by one.
7. voice broadcast type digital pressure gauge as claimed in claim 1 is characterized in that, described nut (18) adopts the nut of no shaft shoulder form.
8. voice broadcast type digital pressure gauge as claimed in claim 1 is characterized in that, the shaft shoulder of described adapter (17) top and sensor housing (16) is conflicted, and is gapped between the inside surface of the lower surface of sensor housing (16) and adapter (17).
9. voice broadcast type digital pressure gauge as claimed in claim 1 is characterized in that, at the outside surface of described front panel (1) and the equal pad pasting of outside surface of rear panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132677 CN203203748U (en) | 2013-03-22 | 2013-03-22 | Voice broadcast type digital pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132677 CN203203748U (en) | 2013-03-22 | 2013-03-22 | Voice broadcast type digital pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203748U true CN203203748U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320132677 Withdrawn - After Issue CN203203748U (en) | 2013-03-22 | 2013-03-22 | Voice broadcast type digital pressure gauge |
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| CN (1) | CN203203748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196625A (en) * | 2013-03-22 | 2013-07-10 | 北京长城电子装备有限责任公司 | Voice broadcasting type digital pressure gauge |
-
2013
- 2013-03-22 CN CN 201320132677 patent/CN203203748U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196625A (en) * | 2013-03-22 | 2013-07-10 | 北京长城电子装备有限责任公司 | Voice broadcasting type digital pressure gauge |
| CN103196625B (en) * | 2013-03-22 | 2015-01-07 | 北京长城电子装备有限责任公司 | Voice broadcasting type digital pressure gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20150107 |
|
| RGAV | Abandon patent right to avoid regrant |