CN205749435U - Multi-functional positive-pressure air respirator uses timer - Google Patents
Multi-functional positive-pressure air respirator uses timer Download PDFInfo
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- CN205749435U CN205749435U CN201620428119.3U CN201620428119U CN205749435U CN 205749435 U CN205749435 U CN 205749435U CN 201620428119 U CN201620428119 U CN 201620428119U CN 205749435 U CN205749435 U CN 205749435U
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- timer
- pressure air
- circuit
- sensor
- pressure
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Abstract
The utility model discloses a kind of multi-functional positive-pressure air respirator and use timer, including watchcase (1), protecgulum (2) and bonnet (3)；Wherein: watchcase (1) internal be installed with circuit main board (4), sensor (5), three-way valve (8) and working power (7)；Protecgulum (2) is provided with display floater (6)；The external air respiratorresuscitator of import of described three-way valve (8)；One of them of described three-way valve (8) exports external mechanical type air-pressure gage, and another outlet connects sensor (5)；Described sensor (5), display floater (6), working power (7) are connected with circuit main board (4) respectively.Timer simple in construction of the present utility model, use cost are low, safe and reliable, it is possible to quick and precisely measuring and calculating sky exhales device residual gas pot life, have the multiple warning function such as breathing and non-respiratory state gas Leak Detection and battery electric quantity deficiency.
Description
Technical field
This utility model belongs to the application apparatus of fire-fighting domain, is specifically related to a kind of multi-functional positive-pressure air respirator and uses timer.
Background technology
Air respiratorresuscitator is fire fighters and other special operation workers, the equipment indispensable when place operations such as poisonous anoxias, and existing air respiratorresuscitator is mostly equipped with the surplus of gas in mechanical type air-pressure gage confession user understanding gas cylinder.Mechanical type air-pressure gage has without power supply, in advantages such as inclement condition occasion uses, but compared with electronic type digital displaying meter, can there is also sensitivity low, and viewing angle affects reading, and the defect such as reading is the most obvious.The more important thing is, the user of air respiratorresuscitator is after obtaining barometric reading, personal experience to be relied on estimates the up time, and owing to experience accumulation, individual variation and use environment are different with state, the pot life that identical reading estimates often exists the biggest error.
Have some air respiratorresuscitator Intelligent monitoring devices that can estimate the up time at present, but from document, these monitoring devices use timing sampling storage pressure mostly, then ask for the direct estimating and measuring method of pot life divided by the pressure differential in time rating with residue air pressure.This method fails to get rid of the pressure oscillation (pressure history is shown in accompanying drawing Fig. 1) caused by user breathing, it can thus be appreciated that, in different time sections, the pressure descending slope calculating same respiration is entirely different, and this just inevitably results in the pot life estimated and there is bigger error.
Utility model content
The purpose of this utility model is the some shortcomings existed for prior art, it is provided that a kind of can the most quick and precisely calculate sky and exhales the measuring device of device residual gas pot life.
To achieve these goals, this utility model have employed techniques below scheme:
A kind of multi-functional positive-pressure air respirator uses timer, including watchcase, protecgulum and bonnet；It is being installed with circuit main board, sensor, three-way valve and working power within watchcase；Protecgulum is provided with display floater；The external air respiratorresuscitator of import (alarm for high voltage pipeline) of described three-way valve；One of them of described three-way valve exports external mechanical type air-pressure gage, and another outlet connects sensor；Described sensor, display floater, working power are connected with circuit main board respectively.
This utility model further illustrates, and described circuit main board is provided with A/D change-over circuit, microprocessor, display circuit and power supply circuits；Described A/D change-over circuit, display circuit, power supply circuits are connected with microprocessor respectively；Described A/D change-over circuit connects sensor；Described display circuit connects display floater；Described power supply circuits connect working power.
This utility model further illustrates, and is additionally provided with the power supply indicator and working station indicator being connected with circuit main board respectively on protecgulum.Power supply indicator and working station indicator all use dual-colored LED display lamp.
This utility model further illustrates, and described working power uses two joint rechargeable batteries, and is fixed by arranging spring.
This utility model further illustrates, and described sensor uses pressure-strain sheet composition bridge-type R-V change-over circuit, and the air pressure of air respiratorresuscitator is converted into voltage analog signal, and output is to A/D change-over circuit.
This utility model further illustrates, and described A/D change-over circuit uses HX712 A/D conversion chip, and after the polydispersity index with 10 times/second, serial communication interface exports to microprocessor.
This utility model further illustrates, and described microprocessor uses STC15
Single-chip microcomputer.
This utility model further illustrates, and described display floater uses charactron.
In this utility model, three interfaces of three-way valve are hickey；Circuit design (such as A/D change-over circuit, display circuit, power supply circuits etc.) on circuit main board all uses the conventional circuit design of this area.
Operation principle of the present utility model:
Sensor uses pressure-strain sheet composition bridge-type R-V change-over circuit, air respiratorresuscitator air pressure is converted into voltage analog signal, after this analogue signal is by the HX712 A/D conversion chip polydispersity index with 10 times/second, being mail to microprocessor by serial communication interface, microprocessor selects STC15 series small, low-power scm.After this single-chip microcomputer receives a frame serial data, by gas pot life measurement algorithm in air respiratorresuscitator, calculate remaining time, and this time value is shown in real time on the LED charactron of display circuit.When remaining time is less than 10min, microprocessor controls charactron and starts flicker warning, and minimizing in time gradually steps up the frequency of flicker.Single-chip microcomputer, after calculating pot life, calls Leakage inspection algorithm and judges whether gas leakage, if any gas leakage, then and some shiny red duty alarm lamp.
This timer uses two joint rechargeable batteries, and electricity can meet timer non-stop run in continuous 24 hours.Cell voltage boosted by power circuit after for the modules of complete machine, cell voltage monitored in real time by microprocessor, during undertension, becomes red alarm by dual-colored LED power supply indicator.
Compared with prior art, the beneficial effect that this utility model possesses:
Timer the most of the present utility model is safe and reliable, can the most quick and precisely calculate sky and exhale device residual gas pot life, there is the multiple warning function such as breathing and non-respiratory state gas Leak Detection and battery electric quantity deficiency simultaneously, provide reference frame for user action decision.
Timer the most of the present utility model uses integrated structure design, and all parts such as pipeline, circuit part and battery are all integrated among a table body, and simple in construction, production cost are low.
Timer the most of the present utility model is easy to use, fast demountable；Alarm for high voltage pipeline hickey (import of three-way valve) bottom timer being directly accessed air respiratorresuscitator can normally work, hickey (outlet of three-way valve) is also left on timer top, after accessing for traditional mechanical type air-pressure gage simultaneously.
Accompanying drawing explanation
Fig. 1 is that air respiratorresuscitator is breathing the pressure history figure during using.
Fig. 2 is the structural representation of this utility model one embodiment.
Fig. 3 is the front-view schematic diagram of this utility model one embodiment.
Fig. 4 is the schematic rear view of this utility model one embodiment.
Reference: in FIG, P represents air pressure, t express time；In Fig. 2-Fig. 4,1-watchcase, 2-protecgulum, 3-bonnet, 4-circuit main board, 5-sensor, 6-display floater, 7-working power, 8-three-way valve, 9-power supply indicator, 10-working station indicator, 11-spring.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Embodiment:
A kind of multi-functional positive-pressure air respirator uses timer, including watchcase 1, protecgulum 2 and bonnet 3；Wherein: within watchcase 1, be installed with circuit main board 4, sensor 5, three-way valve 8 and working power 7；Protecgulum 2 is provided with display floater 6；The external air respiratorresuscitator of import of described three-way valve 8；One of them of described three-way valve 8 exports external mechanical type air-pressure gage, and another outlet connects sensor 5；Described sensor 5, display floater 6, working power 7 are connected with circuit main board 4 respectively.
Described circuit main board 4 is provided with A/D change-over circuit, microprocessor, display circuit and power supply circuits；Described A/D change-over circuit, display circuit, power supply circuits are connected with microprocessor respectively；Described A/D change-over circuit connects sensor 5；Described display circuit connects display floater 6；Described power supply circuits connect working power 7.
Protecgulum 2 is additionally provided with the power supply indicator 9 and working station indicator 10 being connected with circuit main board 4 respectively.
Described working power 7 uses two joint rechargeable batteries, and is fixed by arranging spring 11.
Described sensor 5 uses pressure-strain sheet to form bridge-type R-V change-over circuit, and the air pressure of air respiratorresuscitator is converted into voltage analog signal, and output is to A/D change-over circuit.Described A/D change-over circuit uses HX712
After A/D conversion chip, and the polydispersity index with 10 times/second, serial communication interface export to microprocessor.Described microprocessor uses STC15 single-chip microcomputer.Described display floater 6 uses charactron.
Claims (8)
1. multi-functional positive-pressure air respirator uses a timer, including watchcase (1), protecgulum (2) and bonnet (3)；It is characterized in that: watchcase (1) internal be installed with circuit main board (4), sensor (5), three-way valve (8) and working power (7)；Protecgulum (2) is provided with display floater (6)；The external air respiratorresuscitator of import of described three-way valve (8)；One of them of described three-way valve (8) exports external mechanical type air-pressure gage, and another outlet connects sensor (5)；Described sensor (5), display floater (6), working power (7) are connected with circuit main board (4) respectively.
Multi-functional positive-pressure air respirator the most according to claim 1 uses timer, it is characterised in that: described circuit main board (4) is provided with A/D change-over circuit, microprocessor, display circuit and power supply circuits；Described A/D change-over circuit, display circuit, power supply circuits are connected with microprocessor respectively；Described A/D change-over circuit connects sensor (5)；Described display circuit connects display floater (6)；Described power supply circuits connect working power (7).
Multi-functional positive-pressure air respirator the most according to claim 1 uses timer, it is characterised in that: on protecgulum (2), it is additionally provided with the power supply indicator (9) and working station indicator (10) being connected respectively with circuit main board (4).
Multi-functional positive-pressure air respirator the most according to claim 1 uses timer, it is characterised in that: described working power (7) uses two joint rechargeable batteries, and is fixed by arranging spring (11).
Multi-functional positive-pressure air respirator the most according to claim 2 uses timer, it is characterized in that: described sensor (5) uses pressure-strain sheet composition bridge-type R-V change-over circuit, the air pressure of air respiratorresuscitator is converted into voltage analog signal, and output is to A/D change-over circuit.
Multi-functional positive-pressure air respirator the most according to claim 5 uses timer, it is characterized in that: described A/D change-over circuit uses HX712 A/D conversion chip, and after the polydispersity index with 10 times/second, serial communication interface export to microprocessor.
Multi-functional positive-pressure air respirator the most according to claim 6 uses timer, it is characterised in that: described microprocessor uses STC15 single-chip microcomputer.
Multi-functional positive-pressure air respirator the most according to claim 1 uses timer, it is characterised in that: described display floater (6) uses charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428119.3U CN205749435U (en) | 2016-05-12 | 2016-05-12 | Multi-functional positive-pressure air respirator uses timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428119.3U CN205749435U (en) | 2016-05-12 | 2016-05-12 | Multi-functional positive-pressure air respirator uses timer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749435U true CN205749435U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428119.3U Expired - Fee Related CN205749435U (en) | 2016-05-12 | 2016-05-12 | Multi-functional positive-pressure air respirator uses timer |
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| CN (1) | CN205749435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866343A (en) * | 2016-05-12 | 2016-08-17 | 桂林理工大学南宁分校 | Multifunctional timer used by positive pressure type air respirator and detection method |
-
2016
- 2016-05-12 CN CN201620428119.3U patent/CN205749435U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866343A (en) * | 2016-05-12 | 2016-08-17 | 桂林理工大学南宁分校 | Multifunctional timer used by positive pressure type air respirator and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |