CN102793537A - Mini-type air release valve - Google Patents
Mini-type air release valve Download PDFInfo
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- CN102793537A CN102793537A CN2012103237611A CN201210323761A CN102793537A CN 102793537 A CN102793537 A CN 102793537A CN 2012103237611 A CN2012103237611 A CN 2012103237611A CN 201210323761 A CN201210323761 A CN 201210323761A CN 102793537 A CN102793537 A CN 102793537A
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- valve
- cuff
- vent valve
- current limiting
- limiting tube
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Abstract
The invention provides a mini-type air release valve. The mini-type air release valve consists of a valve seat, a rubber core and a flow limiting pipe, which are all provided with air channels for air to pass through, wherein the flow limiting pipe is arranged in an inner cavity of the rubber core and is in interference fit with the rubber core, the rubber core is arranged in an inner cavity of the valve seat and is in interference fit with the valve seat, the flow limiting pipe is made of a metal material with ductility, and the metal material adopts stainless steel. According to a sphygmomanometer adopting the mini-type air release valve, the air release is stable, the service life is long, the cost is saved, the air releasing time of a lengthened cuff sphygmomanometer or an ultra long cuff sphygmomanometer is same with that of the sphygmomanometer with a common cuff length, and the comfort level of a user in blood pressure measurement can be improved.
Description
Technical field
The present invention relates to a kind of vent valve, relate in particular to a kind of sphygomanometer and use vent valve.
Background technology
Popularize along with what home medical equipment was used, sphygomanometer also progresses into huge numbers of families.General sphygomanometer mainly is made up of a sphygomanometer main body and a cuff, and the sphygomanometer body interior comprises parts such as inflator pump, pressure transducer, rapid-release valve, miniature vent valve and pcb board, interconnects with connection tube each other between the each several part.Inflator pump is slowly exitted through miniature vent valve after being full of air in certain amount in the cuff, in the slow deflation course of miniature vent valve, measures blood pressure.Existing vent valve structure such as Chinese patent 201020276051.4 are disclosed; Valve body is built-in with cock body, and cock body is built-in with the adjustment plug, on the cock body sidewall otch is arranged; Through adjustment adjustment plug in cock body with the size of the relative position relation control passage of otch, with the control gas flow.It is when occurring colliding with, to exist relative sliding problem between cock body and the adjustment plug that such vent valve has a shortcoming, in case slide then the unit interval flows out the gas volume of vent valve and will change, to such an extent as to the valve body inefficacy.
The other a kind of mode of this type of vent valve:, make gas from the cock body slit flow limited flow that comes out with penetrating a steel wire behind the cock body otch.The existing shortcoming of this valve is an instability of flow, fluctuation up and down, and long-time the placement can blockage phenomenon.Open when receiving certain air pressure in such vent valve cock body slit, and air-flow therefrom passes through, but because cock body influenced by temperature humidity etc. bigger; The long-time back easy fatigue of using; The air pressure compressing cock body slit that tired back is same, then the cock body slit amplitude of opening can change, thereby influences gas flow; Influenced the measurement of blood pressure; And after gas pressure disappears, so because cock body fatigue cock body slit quick-recovery soon, thereby also can influence the precision that gas flow influences blood pressure measurement.
And the vent valve of above-mentioned two kinds of structures so the vent valve volume can not be very little, thereby can not be applied to the less sphygomanometer of volume because of the structure control air-flow that the position relation that adopts between the parts forms.
The upper-arm circumference scope of existing sphygomanometer user is different, and the upper-arm circumference that has is very big, needs to adopt the extended type cuff; When carrying out blood pressure measurement with existing sphygomanometer; Because of extended type cuff air bag is bigger, so aeration quantity is bigger, and the venting speed of vent valve is kept the speed of having set and can not be changed in the sphygomanometer main body; So deflation time; Be that the blood pressure measurement time is longer compared to the Measuring Time of general upper-arm circumference, can cause the user measuring process comfortable inadequately like this, influenced the enthusiasm of user measurement blood pressure.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention provides a kind of miniature vent valve, and this miniature vent valve is made up of valve seat, glue core and current limiting tube; Wherein, Valve seat, glue core and current limiting tube all are useful on the air flue that gas passes through, current limiting tube place glue in-core chamber and with glue core interference fit, the glue core place valve base cavity and with the valve seat interference fit; Current limiting tube is processed by the metal material that is ductile, and this metal material can adopt rustless steel or copper.The initial inside diameter of this current limiting tube is 0.1mm～0.5mm, preferred 0.3mm.
The present invention provides a kind of cuff that adopts miniature vent valve, comprises oversleeve, air bag; Trachea and valve, wherein, air bag places in the oversleeve; Air bag, trachea and valve communicate; Gas gets into air bag with to airbag aeration through valve and trachea, and said valve comprises the valve shell, the part formation valve seat of valve shell.
Beneficial effect of the present invention:
Miniature vent valve provided by the invention; Miniature vent valve performance is not collided with and is influenced behind the glue core fixed current limiting pipe, and the glue core is used for fixing current limiting tube, so the aging performance that does not influence current limiting tube of glue core; And current limiting tube is that metal is processed; Also increased the service life of miniature vent valve, strengthened the environment-adapting ability of miniature vent valve, made it can be applicable to all temps and humidity environment.
Miniature vent valve overall structure provided by the invention only needs fastening protection current limiting tube, so that volume can be made is less, can satisfy the demand of small-sized sphygomanometer to the small size vent valve.
Miniature vent valve provided by the invention is simple in structure, is easy to realize that processing technique is simple, is compared to existing vent valve and practices thrift cost.
The cuff that has miniature vent valve provided by the invention places the cuff valve with miniature vent valve, thereby can regulate its vent valve to adapt to the venting speed of lengthening cuff and overlength cuff, to solve the slow problem of its venting to this cuff.Through regulating miniature vent valve, make the overlength cuff also the same on the time with normal cuff Measuring Time at blood pressure measurement.
Description of drawings
Fig. 1 is that sphygomanometer of the present invention constitutes block diagram.
Fig. 2 is the annexation sketch map of four-way and vent valve in the embodiment of the invention 1.
Fig. 3 is the assembly explosive view of miniature vent valve of the present invention.
Fig. 4 is the profile of miniature vent valve of the present invention in direction shown in Fig. 2 A-A.
Fig. 5 A is the cross sectional representation of the current limiting tube in the miniature vent valve of the present invention in original state.
Fig. 5 B is the cross sectional representation of current limiting tube after processing in the miniature vent valve of the present invention.
Fig. 6 is the formation sketch map of the suitable sphygomanometer of cuff of the present invention.
Fig. 7 is the exploded perspective view of the valve of the embodiment of the invention 2.
Fig. 8 is the profile of the valve of the embodiment of the invention 2 in direction shown in Fig. 7 B-B.
Specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
Embodiment 1:
As shown in Figure 1, sphygomanometer comprises sphygomanometer main body 10 and cuff, and sphygomanometer main body 10 inside comprise parts such as inflator pump, pressure transducer, rapid-release valve and miniature vent valve, and are as shown in Figure 2, interconnects with four-way 1 and connection tube each other between the each several part.Inflator pump is with after being full of air in certain amount in the cuff, and the gas in the cuff is emitted from miniature vent valve 2, emits at gas and carries out blood pressure measurement in the process.
The operation principle of miniature vent valve 2: gas is through small pore, and small pore limits gas flow, and the gas volume that flows through small pore in the following unit interval of constant air pressure is constant.Like Fig. 3, shown in Figure 4, miniature vent valve 2 is made up of valve seat 3, glue core 4, current limiting tube 5 three parts, and current limiting tube 5 is processed by the metal material that is ductile, preferred stainless steel material.Be depicted as the cross sectional representation of the original state of current limiting tube 5 like Fig. 5 A, need the diameter processed with current limiting tube 5 for flow is met the requirements, processing back sectional area is shown in Fig. 5 B, and current limiting tube 5 processed back sectional areas diminish, and meet the sectional area of our needs., we can its sectional area be worked into the sectional area that adapts to meet flow when needing the miniature vent valve of different flow.
The course of processing of current limiting tube 5 is: current limiting tube 5 usefulness pliers or other tool processes are become flat-shaped shown in Fig. 5 B, make flow-control within required scope.Internal diameter is difficult to make less than the tubule of 0.3mm under existing low cost production thereof, and the required internal diameter of miniature vent valve 2 is less than 0.1mm.Therefore need be that the tubule of 0.3mm is processed into the long-pending tubule in irregular section with internal diameter, make the required discharge area of its effective area and we consistent.And this processing technique is very simple to operation.
Finished current limiting tube 5 is cooperated with glue core 4, be inserted in valve seat 3 with protection glue core 4 and current limiting tube 5 at skin.
In order to solve the not enough problem of length that big upper-arm circumference blood pressure measurement user adopts general length cuff; Can join a lengthening cuff or overlength cuff for the sphygomanometer main body adds; But such lengthening cuff or overlength cuff are bigger than the air bag of general length cuff because of inner balloon; The existing miniature vent valve of sphygomanometer places in the sphygomanometer; So after air bag was full of a certain amount of air, the deflation time of lengthening cuff or overlength cuff was more elongated than the general length cuff deflation time, can influence the comfortableness that user carries out blood pressure measurement.
Technical scheme provided by the invention, a sphygomanometer main body 10 is furnished with two cufves, is respectively general length cuff and lengthening cuff; Wherein do not have miniature vent valve in the sphygomanometer main body, and all be provided with miniature vent valve on general length cuff and the lengthening cuff at the valve place, as shown in Figure 6; General length cuff is all identical except that air bag size and cuff length with the structure of lengthening cuff, and cuff comprises oversleeve 11, air bag, trachea 12 and valve 13, wherein; Air bag places in the oversleeve 11, and air bag, valve 13 and trachea 12 communicate, and gas gets into air bags with to airbag aeration through valve 13 and trachea 12; Like Fig. 7, shown in Figure 8; Miniature vent valve is combined in the valve, valve 13 comprises valve shell 7, and the part of valve shell 7 constitutes valve seat at present.This miniature vent valve is made up of valve shell 7, glue core 8, current limiting tube 9.Its operation principle is similar with embodiment 1, and promptly inflator pump is with after being full of air in certain amount in the cuff, and the gas in the cuff is emitted from miniature vent valve 2, emits at gas and carries out blood pressure measurement in the process.
The venting speed of cuff under respectively the miniature vent valve of two sphygomanometers being arranged to be adapted to so that when measuring blood pressure the deflation time of general cuff can be not too short and influence the deflation time of accuracy or the overlength cuff of blood pressure measurement can be not long and influence the comfortableness of user.
A is for example arranged, and B two cuff pneumatophores are long-pending to be respectively 300ml and 500ml, two kinds of cuff gases is about 120ml and 200ml respectively for 300mmHg pressure drops to 0 required gas of emitting internally; If gaseous core structure (throughput is 10ml/s) with the prior art employing; Be that gaseous core places the intravital structure of sphygomanometer master, then the A cuff needs 12S, and the B cuff needs 20S; Because of adopting present product with A; B two cuff gaseous cores transfer to 12ml/S and 20ml/S respectively, and it is humanized that such deflation time is 10S, make tester's comfort level consistent.
The cuff of this miniature vent valve can solve lengthening cuff and the slow problem of overlength cuff deflation.Through regulating miniature vent valve, make the overlength cuff the same with general length cuff Measuring Time on Measuring Time.
Claims (7)
1. miniature vent valve; Form by valve seat, glue core and current limiting tube; Wherein, valve seat, glue core and current limiting tube all are useful on the air flue that gas passes through, current limiting tube place glue in-core chamber and with glue core interference fit; The glue core place valve base cavity and with the valve seat interference fit, it is characterized in that: said current limiting tube is processed by the metal material that is ductile.
2. miniature vent valve according to claim 1 is characterized in that: said metal material is rustless steel or copper.
3. miniature vent valve according to claim 2 is characterized in that: the initial inside diameter of said current limiting tube is 0.1mm～0.5mm.
4. miniature vent valve according to claim 3 is characterized in that: the initial inside diameter of said current limiting tube is 0.3mm.
5. a sphygomanometer comprises sphygomanometer main body and cuff, it is characterized in that: the sphygomanometer body interior comprises any described miniature vent valve of aforesaid right requirement 1～4.
6. a cuff that adopts the described miniature vent valve of claim 1 comprises oversleeve, air bag; Trachea and valve, wherein, air bag places in the oversleeve; Air bag, trachea and valve communicate; Gas gets into air bag with to airbag aeration through valve and trachea, and it is characterized in that: said valve comprises the valve shell, the part formation valve seat of said valve shell.
7. a sphygomanometer comprises sphygomanometer main body and cuff, it is characterized in that: said cuff is the described cuff of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323761.1A CN102793537B (en) | 2012-09-05 | 2012-09-05 | Mini-type air release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323761.1A CN102793537B (en) | 2012-09-05 | 2012-09-05 | Mini-type air release valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102793537A true CN102793537A (en) | 2012-11-28 |
| CN102793537B CN102793537B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210323761.1A Active CN102793537B (en) | 2012-09-05 | 2012-09-05 | Mini-type air release valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173037A (en) * | 2014-09-09 | 2014-12-03 | 天津九安医疗电子股份有限公司 | Sphygmomanometer deflation core |
| CN104523257A (en) * | 2014-12-22 | 2015-04-22 | 天津九安医疗电子股份有限公司 | Integrated pump valve module |
Citations (11)
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|---|---|---|---|---|
| US4072171A (en) * | 1976-09-14 | 1978-02-07 | Shizumasa Nakazawa | Pressure control valve for a sphygmomanometer |
| US5060865A (en) * | 1988-12-15 | 1991-10-29 | Imperial Chemical Industries Plc | Fluid flow restrictor system |
| WO1998021419A1 (en) * | 1996-11-12 | 1998-05-22 | Star Bright Pty. Limited | Flow regulator |
| CN2510014Y (en) * | 2001-12-26 | 2002-09-11 | 天津市先石光学技术有限公司 | Low-speed air-bleeding valve |
| CA2531954A1 (en) * | 2005-01-07 | 2006-07-07 | Omron Healthcare Co., Ltd. | Air valve, electronic blood pressure monitor, and air massager |
| CN1828099A (en) * | 2005-03-04 | 2006-09-06 | 张坤林 | Small-sized proportional valve for flow control and manufacturing method thereof |
| US20070073172A1 (en) * | 2005-09-27 | 2007-03-29 | Health & Life Co., Ltd. | Stable pressure release device for electronic sphygmomanometer |
| CN201055380Y (en) * | 2007-07-19 | 2008-05-07 | 浙江陆发微电机有限公司 | Solenoid valve used for electro-sphygmomanometer |
| CN201145294Y (en) * | 2007-12-18 | 2008-11-05 | 柳孟柱 | Air vent needle of exhaust valve for lighter |
| CN201775627U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Controllable release valve and electronic sphygmomanometer adopting the same |
| CN203000920U (en) * | 2012-09-05 | 2013-06-19 | 天津九安医疗电子股份有限公司 | A mini-size deflation valve and a sleeve strap and a sphygmomanometer with the same |
-
2012
- 2012-09-05 CN CN201210323761.1A patent/CN102793537B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072171A (en) * | 1976-09-14 | 1978-02-07 | Shizumasa Nakazawa | Pressure control valve for a sphygmomanometer |
| US5060865A (en) * | 1988-12-15 | 1991-10-29 | Imperial Chemical Industries Plc | Fluid flow restrictor system |
| WO1998021419A1 (en) * | 1996-11-12 | 1998-05-22 | Star Bright Pty. Limited | Flow regulator |
| CN2510014Y (en) * | 2001-12-26 | 2002-09-11 | 天津市先石光学技术有限公司 | Low-speed air-bleeding valve |
| CA2531954A1 (en) * | 2005-01-07 | 2006-07-07 | Omron Healthcare Co., Ltd. | Air valve, electronic blood pressure monitor, and air massager |
| CN1828099A (en) * | 2005-03-04 | 2006-09-06 | 张坤林 | Small-sized proportional valve for flow control and manufacturing method thereof |
| US20070073172A1 (en) * | 2005-09-27 | 2007-03-29 | Health & Life Co., Ltd. | Stable pressure release device for electronic sphygmomanometer |
| CN201055380Y (en) * | 2007-07-19 | 2008-05-07 | 浙江陆发微电机有限公司 | Solenoid valve used for electro-sphygmomanometer |
| CN201145294Y (en) * | 2007-12-18 | 2008-11-05 | 柳孟柱 | Air vent needle of exhaust valve for lighter |
| CN201775627U (en) * | 2010-07-26 | 2011-03-30 | 比亚迪股份有限公司 | Controllable release valve and electronic sphygmomanometer adopting the same |
| CN203000920U (en) * | 2012-09-05 | 2013-06-19 | 天津九安医疗电子股份有限公司 | A mini-size deflation valve and a sleeve strap and a sphygmomanometer with the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173037A (en) * | 2014-09-09 | 2014-12-03 | 天津九安医疗电子股份有限公司 | Sphygmomanometer deflation core |
| CN104523257A (en) * | 2014-12-22 | 2015-04-22 | 天津九安医疗电子股份有限公司 | Integrated pump valve module |
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| Publication number | Publication date |
|---|---|
| CN102793537B (en) | 2014-07-09 |
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