CN102488961B - Air charging and discharging valve special for external counter pulsation - Google Patents
Air charging and discharging valve special for external counter pulsation Download PDFInfo
- Publication number
- CN102488961B CN102488961B CN 201110418081 CN201110418081A CN102488961B CN 102488961 B CN102488961 B CN 102488961B CN 201110418081 CN201110418081 CN 201110418081 CN 201110418081 A CN201110418081 A CN 201110418081A CN 102488961 B CN102488961 B CN 102488961B
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- valve
- air
- valve body
- core
- drain tap
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Abstract
The invention discloses an air charging and discharging valve special for external counterpulsation, and belongs to the field of medical equipment. The valve comprises a valve body provided with an air inlet, an air charging port and an air discharging port, a valve seat fixed on the lower part of the valve body, an electromagnet arranged at the upper end of the valve body, an iron core arranged in the electromagnet, a valve core which can slide in the valve body, and a valve return spring, wherein the valve core consists of a core rod and an air inlet valve and an air discharging valve whichare arranged on the core rod; the upper end of the core rod passes through the valve body, enters the electromagnet and is contacted with the iron core; a working cavity and an air discharging cavityare formed in the valve body; communication between the working cavity and the air discharging cavity is controlled by the air discharging valve; when the electromagnet is electrified, the valve coremoves downwards under the action of the iron core, the air inlet valve is opened, and the air discharging valve is closed; and when the electromagnet is subjected to power failure, the valve core moves upwards under the action of the valve core return spring, the air inlet valve is closed, and the air discharging valve is opened. The valve is mainly used for the air charging and discharging of anair sac of an external counterpulsation machine.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of charge-exhaust valve special for external counter pulsation.
Background technology
The external counterpulsation Air inflating and exhausting valve is the crucial executive component on the external counterpulsation apparatus, and its effect is inflation and the aerofluxus of control air bag, reaches orderly in external compressing and vasodilatory effect, thus the medical procedure of perfect aspect extracorporeal counterpulsation.
The Chinese utility model patent of the patent No.: ZL91215693.7 discloses a kind of Special valve for external counterpulsation, there is the problems such as quantity of gas leakage is large, aerofluxus is smooth, mechanicalness noise is large, installation is inconvenient.
The patent No. is: the Chinese utility model patent of ZL200920127685.0 discloses a kind of environment-friendly type charge-exhaust valve special for external counter pulsation, although it structurally makes certain improvements, but there are the problems such as gas circuit is complicated, Leakage Gas is serious, noise is large in it, can make like this in the treatment air pressure unstable, aerofluxus is not smooth, and has reduced therapeutic effect.
Summary of the invention
The technical problem to be solved in the present invention is that external counterpulsation Air inflating and exhausting valve of the prior art exists large, the not smooth problem of aerofluxus of quantity of gas leakage.
Technical scheme of the present invention is: charge-exhaust valve special for external counter pulsation, comprise and have air inlet, the valve body of inflation inlet and air vent, be fixed on the valve seat of valve body lower portion, be arranged on the electric magnet of valve body upper end and be arranged on the interior iron core of electric magnet, the spool that can in valve body, slide and valve core reseting spring, described spool is by plug and be arranged on air intake valve on the plug, drain tap consists of, described plug upper end is passed valve body and is entered in the electric magnet and with iron core and contact, have working chamber and discharge chamber in the valve body, switching between working chamber and the discharge chamber is controlled by drain tap, when electric magnet is switched on, spool moves down under the effect of iron core, air intake valve is opened, and drain tap is closed; When electric magnet cut off the power supply, spool moved under the effect of valve core reseting spring, and air intake valve is closed, and drain tap is opened.
Further, be provided with the cushion pad that cooperates with iron core in the described electric magnet.
Further, be provided with silencing pad in the described discharge chamber.
Further, described air intake valve is arranged on the air inlet outside.
Further, described drain tap is arranged on discharge chamber one side.
Further, described air intake valve and drain tap are dull and stereotyped valve.
Further, described air intake valve and drain tap are made by polyurethane material.
Spool of the present invention is made of plug and the air intake valve and the drain tap that are fixed on the plug, and air intake valve and drain tap interlock reach inflation (closing simultaneously aerofluxus) and aerofluxus (closing simultaneously inflation) during work, and structure is simplified greatly.
Have working chamber and discharge chamber in the valve body, simplified gas circuit, reduced gas leak phenomenon, increased capacity, reduced gas-flow resistance, the aerofluxus response is fast, and without hysteresis, without the overbottom pressure phenomenon, it is comfortable that patient feels when making air bags, and therapeutic effect is remarkable.
Be provided with the cushion pad that cooperates with iron core in the electric magnet, be provided with the silencing pad that cooperates with the drain tap upper end in the valve body, the noise when greatly reducing work.
By air intake valve and drain tap are improved, air intake valve and drain tap are made by polyurethane material, because the polyurethane material softness is wear-resisting, have improved air-tightness, have prolonged service life simultaneously.
Compared with prior art, the present invention has following advantage:
1, there is not gas leakage, gas usage is declined to a great extent, guaranteed on the one hand the stable of medical pressure, can make the power of air pump descend about 30% simultaneously.
2, simplify the structure, reliable operation has been stopped fault substantially, has prolonged service life.
3. airway unobstructed, valve is fast to the response of signal.
4, reduced noise, it is better to have improved medical environment.
Description of drawings
Fig. 1 is structural representation of the present invention.
Reference numeral is respectively among the figure: 1 cushion pad, 2 iron cores, 3 electric magnet, 4 plugs, 6 silencing pads, 7 air vents, 8 drain taps, 9 air intake valves, 10 valve bodies, 11 valve core reseting springs, 13 valve seats, 14 air inlets.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing
Embodiment 1
As shown in Figure 1, charge-exhaust valve special for external counter pulsation, comprise have air inlet 14, the valve body 10 of inflation inlet and air vent 7, be fixed on the valve seat 13 of valve body 10 bottoms, be arranged on the electric magnet 3 of valve body 10 upper ends and be arranged on iron core 2 in the electric magnet 3, iron core 2 can move up and down under the effect of electric magnet 3, can be at spool and the valve core reseting spring 11 of valve body 10 interior slips.Spool is made of plug 4 and the air intake valve 9, the drain tap 8 that are arranged on the plug 4, plug 4 upper ends are passed valve body 10 and are entered in the electric magnet 3 and with iron core 2 and contact, have working chamber and discharge chamber in the valve body 10, switching between working chamber and the discharge chamber is by drain tap control 8, when electric magnet 3 energising, spool moves down under the effect of iron core 2, and air intake valve 9 is opened, and drain tap 8 is closed; When electric magnet 3 outage, spool moves under the effect of valve core reseting spring 11, and air intake valve 9 is closed, and drain tap 8 is opened.
When electric magnet 3 outage, spool can reset rapidly under the effect of valve core reseting spring 11, and iron core 2 moves and electric magnet 3 collisions on rapidly simultaneously, produces mechanicalness noise, in order to reduce noise, is provided with the cushion pad 1 that cooperates with iron core 2 in electric magnet 3.
When aerofluxus, because flowing rapidly of gas can produce noise in the discharge chamber, therefore, silencing pad 6 is installed in discharge chamber, silencing pad 6 adopts the Polymer Synthesizing fleece to make.Reach more than 90% because the volume of silencing pad 6 is compressible, can effectively absorb exhaust noise.
The dull and stereotyped valve that air intake valve 9 and drain tap 8 all adopt polyurethane material to make is fixed on air intake valve 9 on the plug 4 in air inlet 14 outsides by nut, drain tap 8 is fixed on the plug 4 of air vent 7 one sides.
Embodiment 2
Present embodiment is substantially the same manner as Example 1, just plug 4 is foreshortened in the valve body 10, and replaces stretching among the embodiment 1 one section plug 4 in the electric magnet by a push rod, thereby reach the effect of transmitting iron core 2 downforce.
Claims (5)
1. charge-exhaust valve special for external counter pulsation, comprise and have air inlet, the valve body of inflation inlet and air vent, be fixed on the valve seat of valve body lower portion, be arranged on the electric magnet of valve body upper end and be arranged on the interior iron core of electric magnet, the spool that can in valve body, slide and valve core reseting spring, it is characterized in that: described spool is by plug and be arranged on air intake valve on the plug, drain tap consists of, described plug upper end is passed valve body and is entered in the electric magnet and with iron core and contact, have working chamber and discharge chamber in the valve body, switching between working chamber and the discharge chamber is controlled by drain tap, when electric magnet is switched on, spool moves down under the effect of iron core, air intake valve is opened, and drain tap is closed; When electric magnet cut off the power supply, spool moved under the effect of valve core reseting spring, and air intake valve is closed, and drain tap is opened; Described drain tap is arranged on discharge chamber one side, and described air intake valve and drain tap are dull and stereotyped valve.
2. charge-exhaust valve special for external counter pulsation according to claim 1 is characterized in that: be provided with the cushion pad that cooperates with iron core in the described electric magnet.
3. charge-exhaust valve special for external counter pulsation according to claim 1 is characterized in that: be provided with silencing pad in the described discharge chamber.
4. charge-exhaust valve special for external counter pulsation according to claim 1 is characterized in that: described air intake valve is arranged on the air inlet outside.
5. charge-exhaust valve special for external counter pulsation according to claim 1, it is characterized in that: described air intake valve and drain tap are made by polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110418081 CN102488961B (en) | 2011-12-15 | 2011-12-15 | Air charging and discharging valve special for external counter pulsation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110418081 CN102488961B (en) | 2011-12-15 | 2011-12-15 | Air charging and discharging valve special for external counter pulsation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102488961A CN102488961A (en) | 2012-06-13 |
| CN102488961B true CN102488961B (en) | 2013-05-01 |
Family
ID=46180850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110418081 Expired - Fee Related CN102488961B (en) | 2011-12-15 | 2011-12-15 | Air charging and discharging valve special for external counter pulsation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102488961B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550056A (en) * | 2013-10-23 | 2014-02-05 | 王莹 | Automatic first-aid device |
| CN107087934B (en) * | 2017-05-17 | 2019-02-15 | 王志强 | Automatically adjust the Intelligent pillow of temperature |
| CN110547960A (en) * | 2019-10-17 | 2019-12-10 | 苏州尚领医疗科技有限公司 | Cardio-pulmonary resuscitation pressing device capable of transmitting X rays |
| CN112023133A (en) * | 2020-09-09 | 2020-12-04 | 山东省日照市人民医院 | Drainage device is used in nursing of severe medical science branch of academic or vocational study |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230379Y (en) * | 1991-07-15 | 1996-07-03 | 杨辰圆 | Special valve for external counterpulsation |
| US5228646A (en) * | 1992-07-06 | 1993-07-20 | Kenneth Raines | Latching trumpet valve for medical infusions |
| RU2219892C1 (en) * | 2002-10-24 | 2003-12-27 | Зао "Вниимп-Вита" | Device for carrying out artificial lung ventilation |
| CN2749517Y (en) * | 2004-10-25 | 2006-01-04 | 杨小京 | Breather valve |
| CN201020151Y (en) * | 2007-04-11 | 2008-02-13 | 张兴明 | Transfusion exhaust valve |
| CN201453825U (en) * | 2009-06-17 | 2010-05-12 | 重庆普施康科技发展有限公司 | Environmentally-friendly charge-exhaust valve special for external counter pulsation |
-
2011
- 2011-12-15 CN CN 201110418081 patent/CN102488961B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102488961A (en) | 2012-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20130501 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |