CN204679224U - A kind of lifesaving mask seal performance testing table - Google Patents
A kind of lifesaving mask seal performance testing table Download PDFInfo
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- CN204679224U CN204679224U CN201520435589.8U CN201520435589U CN204679224U CN 204679224 U CN204679224 U CN 204679224U CN 201520435589 U CN201520435589 U CN 201520435589U CN 204679224 U CN204679224 U CN 204679224U
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Abstract
The utility model relates to a kind of lifesaving mask seal performance testing table, it comprises air source inlet, two branch roads are parallel with after air source inlet, article one, branch road is successively provided with a flowmeter, a barometer and standard component, another branch road is successively provided with No. two flowmeters, No. two barometers and testpieces, it also comprises multi-functional measure loop, and described multi-functional measure loop can be used in face shield air-leakage test, outlet valve detects, air suction valve detects and face shield resistance test.The cardinal principle of the invention for solving the technical problem is: when air leakage is equal with adding amount, and just Absorbable organic halogens is numerically given for pressure, and the flow value that now flowmeter is measured is air leakage at this pressure.
Description
Technical field
The utility model relates to a kind of lifesaving mask seal performance test unit, particularly relates to a kind of mechanical hook-up for detecting lifesaving face shield and valve sealing property thereof.
Background technology
Lifesaving face shield is one of vitals of special helmet, and its sealing property directly has influence on special operation workers at emergency management and rescue carbon dioxide in process oxygen generation efficiency and oxygen absorbing function.Valve is as the critical elements of lifesaving face shield, and the sealing property in the processes such as processing and manufacturing also exists trueness error unavoidably; Meanwhile, valve is in the process being assembled to lifesaving face shield, and the sealing of connecting portion also also exists difference; Therefore, lifesaving face shield and the air leakage of valve under different pressures condition thereof are important performance index.In addition, lifesaving face shield and the compressive resistance of valve under air-proof condition thereof are also one of performance index ensureing face shield and valve serviceable life thereof.Therefore, the performance test under lifesaving mask seal condition is very necessary.At present, still not used for the special purpose test equipment of lifesaving face shield and valve sealing property thereof.Therefore, a kind of mechanical hook-up for detecting lifesaving face shield and valve sealing property thereof of the utility model research and development.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provides a kind of mechanical hook-up detecting lifesaving face shield and valve sealing property thereof.
Detection of content to be solved in the utility model is:
1) air leakage of outlet valve:
A overbottom pressure 4.9kPa(500mmH2O) time air leakage Q≤1.5 L/min;
B overbottom pressure 9.8kPa(1000mmH2O) time air leakage Q≤2.0 L/min;
C overbottom pressure 19.6kPa(2000mmH2O) time air leakage Q≤3.0 L/min;
2) air leakage of air suction valve:
Air leakage Q≤1.0 L/min during a overbottom pressure 2.94kPa;
Air leakage Q≤1.5 L/min during b overbottom pressure 4.9kPa;
Air leakage Q≤2.5 L/min during c overbottom pressure 9.8kPa;
3) inward mask leakage amount:
Air leakage Q≤2.0 L/min during a overbottom pressure 2.94kPa;
Air leakage Q≤2.5 L/min during b overbottom pressure 4.9kPa;
Air leakage Q≤3.5 L/min during c overbottom pressure 9.8kPa;
Air leakage Q≤4.2 L/min during d overbottom pressure 16.9kPa;
4) face shield compressive resistance test:
When three chamber outlet valves are inaccessible, (but in sealed tube pressure≤294kPa) pressurize 1min when face internal mask pressure is 34.3 kPa, face shield does not have obvious breakoff phenomenon.
The cardinal principle of the invention for solving the technical problem is: when air leakage is equal with adding amount, and just Absorbable organic halogens is numerically given for pressure, and the flow value that now flowmeter is measured is air leakage at this pressure.
In order to realize above-mentioned technical characteristic, the technical scheme that the utility model adopts is: a kind of lifesaving mask seal performance testing table, it comprises air source inlet, two branch roads are parallel with after air source inlet, article one, branch road is successively provided with a flowmeter, a barometer and standard component, another branch road is successively provided with No. two flowmeters, No. two barometers and testpieces, and it also comprises multi-functional measure loop.
Described multi-functional measure loop comprises gas source switch, filtrator, pressure regulator valve and a solenoid valve is connected with in turn after gas source switch, control valve for small flows and large flux control valve is parallel with after a solenoid valve, after No. two solenoid valves are arranged on two flow control valves, be provided with two loops after No. two solenoid valves, a loop be connected with a surplus valve, throttling valve, accumulator, a pressure device, No. three solenoid valves, a pressure transducer and voltage-withstand test interfaces in turn, another loop is connected with No. two pressure gauges in turn, No. two surplus valves, buffering gas cylinder, No. three pressure gauges and No. four solenoid valves, two loops are parallel with after No. four solenoid valves, article one, on, be connected with No. three flowmeters and No. five solenoid valves in turn, another is connected with No. two pressure transducers and No. two flow sensors in turn, branch road between No. two pressure transducers and No. two flow sensors is provided with mask interface, article two, after loop, be respectively arranged with No. six solenoid valves and No. seven solenoid valves, No. six solenoid valves are connected with outlet valve interface, No. seven solenoid valves are connected with air suction valve interface.
Described multi-functional measure loop can be used in face shield air-leakage test, outlet valve detects, air suction valve detects and face shield resistance test.
The utility model has following beneficial effect:
The utility model can compatible outlet valve air leakage, air suction valve air leakage, inward mask leakage amount, face shield compressive resistance testing requirement; Handling safety is reliable; Expiration, the rear sealing property test stage of air suction valve processing can be widely used in, also may be used for the rear overall sealing performance test stage of face shield assembling, the overall pressure test link of face shield can also be used for simultaneously, reach " one multiplex ", while raising the efficiency, reduce production cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is Cleaning Principle figure of the present utility model.
Fig. 2 is multi-functional measure loop of the present utility model.
In figure: air source inlet 1, a flowmeter 2, a barometer 3, standard component 4, No. two flowmeters 5, No. two barometers 6, testpieces 7, gas source switch 8, filtrator 9, pressure regulator valve 10, a solenoid valve 11, control valve for small flows 12, large flux control valve 13, No. two solenoid valves 14, a surplus valve 15, throttling valve 16, accumulator 17, a pressure device 18, No. three solenoid valves 19, a pressure transducer 20, voltage-withstand test interface 21, No. two pressure gauges 22, No. two surplus valves 23, buffering gas cylinder 24, No. three pressure gauges 25, No. four solenoid valves 26, No. two pressure transducers 27, No. three flowmeters 28, No. five solenoid valves 29, No. two flow sensors 30, mask interface 31, No. six solenoid valves 32, outlet valve interface 33, No. seven solenoid valves 34, air suction valve interface 35.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
See Fig. 1, a kind of lifesaving mask seal performance testing table, it comprises air source inlet 1, two branch roads are parallel with after air source inlet 1, article one, branch road is successively provided with a flowmeter 2, barometer 3 and standard component 4, another branch road is successively provided with No. two flowmeters 5, No. two barometers 6 and testpieces 7, and it also comprises multi-functional measure loop.
See Fig. 2, described multi-functional measure loop comprises gas source switch 8, filtrator 9, pressure regulator valve 10 and a solenoid valve 11 is connected with in turn after gas source switch 8, control valve for small flows 12 and large flux control valve 13 is parallel with after a solenoid valve 11, after No. two solenoid valves 14 are arranged on two flow control valves, be provided with two loops after No. two solenoid valves 14, a loop be connected with a surplus valve 15, throttling valve 16, accumulator 17, pressure device 18, No. three solenoid valves 19, pressure transducer 20 and voltage-withstand test interface 21 in turn, another loop is connected with No. two pressure gauges 22 in turn, No. two surplus valves 23, buffering gas cylinder 24, No. three pressure gauges 25 and No. four solenoid valves 26, two loops are parallel with after No. four solenoid valves 26, article one, on, be connected with No. three flowmeters 28 and No. five solenoid valves 29 in turn, another is connected with No. two pressure transducers 27 and No. two flow sensors 30 in turn, branch road between No. two pressure transducers 27 and No. two flow sensors 30 is provided with mask interface 31, article two, after loop, be respectively arranged with No. six solenoid valves 32 and No. seven solenoid valves 34, No. six solenoid valves 32 are connected with outlet valve interface 33, No. seven solenoid valves 34 are connected with air suction valve interface 35.
Further, described multi-functional measure loop can be used in face shield air-leakage test, outlet valve detects, air suction valve detects and face shield resistance test.
The course of work of the present utility model and operating principle are:
See Fig. 1, inspection principle of the present utility model is: adopt comparative measurement method, namely a standard component 4 after delicate metering is selected, the source of the gas of same flow and pressure is flow in the middle of standard component 4 and testpieces 7 respectively, after gas circuit is stable, the data difference in a flowmeter 2 and No. two flowmeters 5 is exactly the air leakage of testpieces 7.
With reference to Fig. 2, face shield measure loop theory of constitution of the present utility model is: after opening gas source switch 8, gases at high pressure filter through filtrator 9, thus prevents from damaging gas air path elements; By pressure regulator valve 10 by gas setting air pressure initial value, connect the right-hand member of a solenoid valve 11, regulate large flux control valve 13, connect the left end of No. two solenoid valves 14, the pressure that No. two pressure gauge 22 show circuits are current, thus fast to insufflation gas in buffering gas cylinder 24, after the gas in buffering gas cylinder 24 arrives limit value, No. two surplus valve 23 releasing pressure automaticallies, thus prevent from damaging air path elements.After buffering gas cylinder 24 has been inflated, standard component 4 is connected in mask interface 31, connect the left end of No. four solenoid valves 26, gas flow in standard component 4 according to the force value that No. three pressure gauges 25 show, and No. two pressure transducers 27 and No. two flow sensors 30 show the pressure versus flow numerical value of standard component 4 respectively; Take off standard component 4, again testpieces 7 is connected in mask interface 31, connect the right-hand member of No. four solenoid valves 26, No. two pressure transducers 27 and No. two flow sensors 30 show the pressure versus flow numerical value of testpieces 7 respectively, are namely the pressure versus flow numerical value of face shield.
With reference to Fig. 2, expiration measure loop theory of constitution of the present utility model is: after opening gas source switch 8, gases at high pressure filter through filtrator 9, thus prevents from damaging gas air path elements; By pressure regulator valve 10 by gas setting air pressure initial value, connect the right-hand member of a solenoid valve 11, regulate large flux control valve 13, connect the left end of No. two solenoid valves 14, the pressure that No. two pressure gauge 22 show circuits are current, thus fast to insufflation gas in buffering gas cylinder 24, after the gas in buffering gas cylinder 24 arrives limit value, No. two surplus valve 23 releasing pressure automaticallies, thus prevent from damaging air path elements.After buffering gas cylinder 24 has been inflated, standard component 4 is connected on outlet valve interface 33, connects the right-hand member of No. four solenoid valves 26, connect the right-hand member of No. five solenoid valves 29, connect the pressure versus flow numerical value that No. six solenoid valves 32, No. three pressure gauges 25 and No. three flowmeters 28 show standard component 4 respectively; Taking off standard component 4 connects on outlet valve interface 33 by testpieces 7 again, and No. three pressure gauges 25 and No. three flowmeters 28 show testpieces 7 respectively, is namely the pressure versus flow numerical value of outlet valve.
With reference to Fig. 2, air-breathing measure loop theory of constitution of the present utility model is: after opening gas source switch 8, gases at high pressure filter through filtrator 9, thus prevents from damaging gas air path elements, by pressure regulator valve 10 by gas setting air pressure initial value, connect the left end of a solenoid valve 11, regulate control valve for small flows 12, connect the left end of No. two solenoid valves 14, the pressure that No. two pressure gauge 22 show circuits are current, thus to insufflation gas in buffering gas cylinder 24, after the gas in buffering gas cylinder 24 arrives limit value, No. two surplus valve 23 releasing pressure automaticallies, thus prevent from damaging air path elements, after buffering gas cylinder 24 has been inflated, standard component 4 is connected on air suction valve interface 35, connect the right-hand member of No. four solenoid valves 26, connect the right-hand member of No. five solenoid valves 29, connect No. seven solenoid valves 34, three pressure gauges 25 and No. three flowmeters 28 show the pressure versus flow numerical value of standard component 4 respectively, taking off standard component 4 is connected on air suction valve interface 35 by testpieces 7 again, and No. three pressure gauges 25 and No. three flowmeters 28 show testpieces 7 respectively, is namely the pressure versus flow numerical value of air suction valve.
With reference to Fig. 2, resistance test loop of the present utility model theory of constitution is: after opening gas source switch 8, gases at high pressure filter through filtrator 9, thus prevents from damaging gas air path elements; By pressure regulator valve 10 by gas setting air pressure initial value, connect the right-hand member of a solenoid valve 11, regulate large flux control valve 13, connect the right-hand member of No. two solenoid valves 14, gas, by after a surplus valve 15 and throttling valve 16, enters in the middle of accumulator 17, connect No. three solenoid valve (left ends of 19, demarcate the force value in the middle of accumulator 17 by a pressure transducer 20, when the force value of display on a pressure gauge 18 is too high, a surplus valve 15 is accumulator 17 pressure release automatically.Testpieces 7 is linked on voltage-withstand test interface 21, connect No. three solenoid valve (right-hand members of 19, the force value that now resistance test loop is demarcated according to a pressure transducer 20 is pressurizeed in testpieces 7, the dwell time required according to test program tests, and viewing test part 7, the i.e. deformation of face shield.
Claims (2)
1. a lifesaving mask seal performance testing table, it is characterized in that: it comprises air source inlet (1), two branch roads are parallel with after air source inlet (1), article one, branch road is successively provided with a flowmeter (2), a barometer (3) and standard component (4), another branch road is successively provided with No. two flowmeters (5), No. two barometers (6) and testpieces (7), and it also comprises multi-functional measure loop;
Described multi-functional measure loop comprises gas source switch (8), filtrator (9) is connected with in turn after gas source switch (8), pressure regulator valve (10) and a solenoid valve (11), control valve for small flows (12) and large flux control valve (13) is parallel with after a solenoid valve (11), after No. two solenoid valves (14) are arranged on two flow control valves, two loops are provided with after No. two solenoid valves (14), article one, loop is connected with a surplus valve (15) in turn, throttling valve (16), accumulator (17), a pressure device (18), No. three solenoid valves (19), a pressure transducer (20) and voltage-withstand test interface (21), another loop is connected with No. two pressure gauges (22) in turn, No. two surplus valves (23), buffering gas cylinder (24), No. three pressure gauges (25) and No. four solenoid valves (26), two loops are parallel with after No. four solenoid valves (26), article one, on, be connected with No. three flowmeters (28) and No. five solenoid valves (29) in turn, another is connected with No. two pressure transducers (27) and No. two flow sensors (30) in turn, branch road between No. two pressure transducers (27) and No. two flow sensors (30) is provided with mask interface (31), article two, after loop, be respectively arranged with No. six solenoid valves (32) and No. seven solenoid valves (34), No. six solenoid valves (32) are connected with outlet valve interface (33), No. seven solenoid valves (34) are connected with air suction valve interface (35).
2. a kind of lifesaving mask seal performance testing table according to claim 1, is characterized in that: described multi-functional measure loop can be used in face shield air-leakage test, outlet valve detects, air suction valve detects and face shield resistance test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435589.8U CN204679224U (en) | 2015-06-24 | 2015-06-24 | A kind of lifesaving mask seal performance testing table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435589.8U CN204679224U (en) | 2015-06-24 | 2015-06-24 | A kind of lifesaving mask seal performance testing table |
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| Publication Number | Publication Date |
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| CN204679224U true CN204679224U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520435589.8U Expired - Fee Related CN204679224U (en) | 2015-06-24 | 2015-06-24 | A kind of lifesaving mask seal performance testing table |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834121A (en) * | 2016-03-24 | 2016-08-10 | 埃美斯自动化科技(厦门)有限公司 | Sorting system of face masks and method thereof |
| CN106323569A (en) * | 2016-08-18 | 2017-01-11 | 河北汉光重工有限责任公司 | Fuel tank airtightness detection device and test method |
| CN108827557A (en) * | 2018-07-25 | 2018-11-16 | 苏州佐竹冷热控制技术有限公司 | A kind of compressed air type leakage amount measuring device for electricity |
| CN109916720A (en) * | 2019-04-09 | 2019-06-21 | 张彩虹 | A kind of each component connectivity robustness detection device of anaesthetic mask |
| CN110686841A (en) * | 2019-10-08 | 2020-01-14 | 重庆科技学院 | Air tightness detection device and detection method for double-cavity structure |
| CN112112865A (en) * | 2020-09-02 | 2020-12-22 | 山东大学 | Flow adjusting device and method in overflow valve test |
-
2015
- 2015-06-24 CN CN201520435589.8U patent/CN204679224U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834121A (en) * | 2016-03-24 | 2016-08-10 | 埃美斯自动化科技(厦门)有限公司 | Sorting system of face masks and method thereof |
| CN106323569A (en) * | 2016-08-18 | 2017-01-11 | 河北汉光重工有限责任公司 | Fuel tank airtightness detection device and test method |
| CN106323569B (en) * | 2016-08-18 | 2018-07-31 | 河北汉光重工有限责任公司 | A kind of oil tank air tightness detector and test method |
| CN108827557A (en) * | 2018-07-25 | 2018-11-16 | 苏州佐竹冷热控制技术有限公司 | A kind of compressed air type leakage amount measuring device for electricity |
| CN109916720A (en) * | 2019-04-09 | 2019-06-21 | 张彩虹 | A kind of each component connectivity robustness detection device of anaesthetic mask |
| CN109916720B (en) * | 2019-04-09 | 2021-06-25 | 张彩虹 | Device for detecting connection firmness of components of anaesthetic mask |
| CN110686841A (en) * | 2019-10-08 | 2020-01-14 | 重庆科技学院 | Air tightness detection device and detection method for double-cavity structure |
| CN110686841B (en) * | 2019-10-08 | 2021-11-05 | 重庆科技学院 | Air tightness detection device and detection method for double-cavity structure |
| CN112112865A (en) * | 2020-09-02 | 2020-12-22 | 山东大学 | Flow adjusting device and method in overflow valve test |
| CN112112865B (en) * | 2020-09-02 | 2021-10-22 | 山东大学 | Flow adjusting device and method in overflow valve test |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160624 |