CN201379828Y - Overflow prevention device of negative pressure aspirator - Google Patents
Overflow prevention device of negative pressure aspirator Download PDFInfo
- Publication number
- CN201379828Y CN201379828Y CN200920096350U CN200920096350U CN201379828Y CN 201379828 Y CN201379828 Y CN 201379828Y CN 200920096350 U CN200920096350 U CN 200920096350U CN 200920096350 U CN200920096350 U CN 200920096350U CN 201379828 Y CN201379828 Y CN 201379828Y
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- negative pressure
- liquid bottle
- liquid
- pressure source
- overflow device
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Abstract
The utility model relates to an overflow prevention device of a negative pressure aspirator, which comprises a negative pressure source, a liquid bottle, a deflating solenoid valve, a pipeline and a controlling circuit. The controlling circuit is respectively connected with the negative pressure source and the deflating solenoid valve, and the negative pressure source is connected with the deflating solenoid valve and a negative pressure opening of the liquid bottle via the pipeline. The overflow prevention device is characterized in that a liquid level sensor connected with the controlling circuit and separated from the liquid bottle is installed on the outside of the liquid bottle below the position of the negative pressure opening. The overflow prevention device has the advantages of having reasonable design, adopting the liquid level sensor to prevent liquid inside the liquid bottle from entering the negative pressure source, achieving effective protection to the negative pressure aspirator, prolonging the service time of the negative pressure aspirator, having safe and reliable effects, stable performance and convenient usage, and being capable of being widely used on all kinds of negative pressure aspirators to protect the aspirators.
Description
Technical field
This utility model belongs to the vacuum extractor field, especially a kind of anti-overflow device of vacuum extractor.
Background technology
At present, vacuum extractor is widely used in medical institutions, is used to attract patient's pus, blood, expectorant and secretions etc.Vacuum extractor is is mainly connected and composed by negative pressure source, liquid bottle, electromagnetic valve and control circuit etc., negative pressure source forms negative pressure by the air in the negative pressure mouth absorption liquid bottle of pipeline and liquid bottle under the control of control circuit and the liquid sucting port by the liquid bottle carries out attraction work, and control circuit control electromagnetic valve venting when cutting off negative pressure source destroys the negative pressure system that is become by negative pressure source, pipeline and liquid doleiform and stops attraction work.The problem that existing vacuum extractor exists is: when the liquid in the liquid bottle is too much, might be drawn into the damage that causes negative pressure source in the negative pressure source or the pollution of central negative potential source by the negative pressure mouth, though, mechanical type anti-overflow device is installed in the liquid bottle can be prevented liquid negative suction source to a certain extent, but, the existence of mechanical type anti-overflow device damages, is difficult to clean and easy aged problem easily, when mechanical type anti-overflow device goes wrong, can cause the liquid in the liquid bottle to enter negative pressure source equally, cause the vacuum extractor cisco unity malfunction.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, proposes a kind of safe and reliable, stable performance and can prevent effectively that liquid from entering the anti-overflow device of the vacuum extractor of negative pressure source.
This utility model solves its technical problem and takes following technical scheme to realize:
A kind of anti-overflow device of vacuum extractor, constitute by negative pressure source, liquid bottle, pressure-releasing electromagnetic valve, pipeline and control circuit, control circuit is connected with negative pressure source, pressure-releasing electromagnetic valve respectively, negative pressure source is connected by the negative pressure mouth of pipeline with pressure-releasing electromagnetic valve, liquid bottle, separates with the liquid bottle in the liquid bottle outside that is lower than negative pressure mouth position a liquid level sensor that is connected with control circuit is installed.
And described liquid level sensor is electro-optical pickoff or capacitance type sensor.
And, at the inner mechanical type anti-overflow device of installing of the liquid bottle at negative pressure mouth place.
And, an air filter is installed on the pipeline between the negative pressure mouth of negative pressure source and liquid bottle.
Advantage of the present utility model and good effect are:
1. this anti-overflow device is installed a liquid level sensor outside the liquid bottle; when the liquid level in the liquid bottle arrives the warning liquid level; liquid level sensor gets final product perception; close negative pressure source or cut-out central negative potential source and control the negative pressure system that pressure-releasing electromagnetic valve aerofluxus destruction is formed by liquid bottle, negative pressure source, pipeline etc. by control circuit then; owing to adopt electronic devices and components such as electro-optical pickoff or capacitance type sensor; have characteristics highly sensitive, stable performance; thereby avoided the interior liquid of liquid bottle along negative pressure mouth negative suction source, formed effective protection vacuum extractor.
2. this anti-overflow device both can have been installed the anti-overflow protection of liquid level sensor realization to negative pressure source outside the liquid bottle; mechanical type anti-overflow device also can be installed in the liquid bottle simultaneously to be realized the dual anti-overflow of negative pressure source is protected; guaranteed that vacuum extractor works safely and reliably, prolonged the service life of vacuum extractor.
3. the liquid level sensor of this anti-overflow device separates installation with the liquid bottle, is convenient to the normal access and the cleaning of liquid bottle, has characteristics easy to use.
4. this utility model is reasonable in design; adopt liquid level sensor to prevent that the liquid in the liquid bottle from entering negative pressure source; realization is to effective protection of vacuum extractor; prolonged the service life of vacuum extractor; have safe and reliable, stable performance, characteristics easy to use, can extensively be used in the protection that realizes on various types of vacuum extractors suction pump.
Description of drawings
Fig. 1 is the connection diagram of the anti-overflow device of vacuum extractor.
The specific embodiment
Below in conjunction with accompanying drawing this utility model embodiment is further described.
A kind of anti-overflow device of vacuum extractor, constitute by negative pressure source 1, liquid bottle 7, pressure-releasing electromagnetic valve 2, pipeline 3, air filter 4, liquid level sensor 10 and control circuit 11, be provided with negative pressure mouth 5 and liquid sucting port 6 in liquid bottle upper end, liquid sucting port is connected with the attraction source of required attraction, the negative pressure mouth is connected with negative pressure source, negative pressure source is connected to form negative pressure system by pipeline and liquid bottle, pressure-releasing electromagnetic valve, on the pipeline between the negative pressure mouth of negative pressure source and liquid bottle an air filter is installed also.Control circuit is connected with negative pressure source and pressure-releasing electromagnetic valve respectively, realizes controlling to the on-off control of negative pressure source and to the venting of pressure-releasing electromagnetic valve.Top in the liquid bottle is provided with a warning liquid level 8, separates with the liquid bottle in the outside of this warning liquid level a liquid level sensor is installed, and this liquid level sensor is electro-optical pickoff or capacitance type sensor.The output signal of liquid level sensor is connected with control circuit; be used for the liquid level position in the perception liquid bottle; when the liquid level in the liquid bottle arrives the warning liquid level; liquid level sensor just can pass to control circuit with perceptual signal; this control circuit cuts out negative pressure source and controls the pressure-releasing electromagnetic valve aerofluxus; thereby destroy by the liquid bottle; negative pressure source; the negative pressure system that pipeline etc. form; preventing that negative pressure source from working without cessation causes in the liquid negative suction source in the liquid bottle; the position of the mode perception liquid level of this employing electro-optical pickoff or capacitance type sensor; have highly sensitive; the characteristics of stable performance; thereby avoided the liquid in the liquid bottle to enter negative pressure source, realized protection vacuum extractor along the negative pressure mouth.
In addition, at the negative pressure mouth place of liquid bottle one mechanical type anti-overflow device 9 can be installed also, this mechanical type anti-overflow device is positioned at the liquid bottle, when the liquid in the liquid bottle rises to mechanical type anti-overflow device, mechanical type anti-overflow device can be blocked the negative pressure mouth under the effect of liquid buoyancy, prevent that the liquid in the liquid bottle is sucked in the negative pressure source.This utility model adopts dual pair of anti-overflow device can prevent the liquid negative suction source that the liquid bottle is interior, realizes suction pump is more effectively protected.
Embodiment described in the utility model is illustrative; rather than it is determinate; therefore this utility model is not limited to the embodiment described in the specific embodiment; every by those skilled in the art according to other embodiments that the technical solution of the utility model draws, belong to the scope of this utility model protection equally.
Claims (4)
1. the anti-overflow device of a vacuum extractor, constitute by negative pressure source, liquid bottle, pressure-releasing electromagnetic valve, pipeline and control circuit, control circuit is connected with negative pressure source, pressure-releasing electromagnetic valve respectively, negative pressure source is connected by the negative pressure mouth of pipeline with pressure-releasing electromagnetic valve, liquid bottle, it is characterized in that: separate with the liquid bottle in the liquid bottle outside that is lower than negative pressure mouth position a liquid level sensor that is connected with control circuit is installed.
2. the anti-overflow device of vacuum extractor according to claim 1, it is characterized in that: described liquid level sensor is electro-optical pickoff or capacitance type sensor.
3. the anti-overflow device of vacuum extractor according to claim 1 is characterized in that: at the inner mechanical type anti-overflow device of installing of the liquid bottle at negative pressure mouth place.
4. the anti-overflow device of vacuum extractor according to claim 1 is characterized in that: an air filter is installed on the pipeline between the negative pressure mouth of negative pressure source and liquid bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920096350U CN201379828Y (en) | 2009-04-17 | 2009-04-17 | Overflow prevention device of negative pressure aspirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920096350U CN201379828Y (en) | 2009-04-17 | 2009-04-17 | Overflow prevention device of negative pressure aspirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201379828Y true CN201379828Y (en) | 2010-01-13 |
Family
ID=41523301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920096350U Expired - Fee Related CN201379828Y (en) | 2009-04-17 | 2009-04-17 | Overflow prevention device of negative pressure aspirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201379828Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836471A (en) * | 2011-06-20 | 2012-12-26 | 重庆腾跃医疗器械有限公司 | Multifunctional ultrasonic debridement treatment machine |
| CN103055359A (en) * | 2012-10-18 | 2013-04-24 | 珠海市奥吉赛科技有限公司 | Overflow protection cup and negative pressure regulator |
| CN103316413A (en) * | 2013-06-28 | 2013-09-25 | 无锡市第二人民医院 | Automatic water adding device of ventilator humidifier |
| CN104548222A (en) * | 2014-12-30 | 2015-04-29 | 宁波卫生职业技术学院 | Sputum suction apparatus |
| CN110201249A (en) * | 2019-05-30 | 2019-09-06 | 天津市同业科技发展有限公司 | A kind of flow measurement device for vacuum suction |
| US20220088284A1 (en) * | 2019-05-30 | 2022-03-24 | Tongye Technologies Development Co., Ltd | Multifunctional central suction system capable of remote monitoring |
| CN114739765A (en) * | 2022-03-23 | 2022-07-12 | 南方海洋科学与工程广东省实验室(广州) | Vacuum air extraction device and method for geotechnical test |
-
2009
- 2009-04-17 CN CN200920096350U patent/CN201379828Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836471A (en) * | 2011-06-20 | 2012-12-26 | 重庆腾跃医疗器械有限公司 | Multifunctional ultrasonic debridement treatment machine |
| CN103055359A (en) * | 2012-10-18 | 2013-04-24 | 珠海市奥吉赛科技有限公司 | Overflow protection cup and negative pressure regulator |
| CN103316413A (en) * | 2013-06-28 | 2013-09-25 | 无锡市第二人民医院 | Automatic water adding device of ventilator humidifier |
| CN104548222A (en) * | 2014-12-30 | 2015-04-29 | 宁波卫生职业技术学院 | Sputum suction apparatus |
| CN104548222B (en) * | 2014-12-30 | 2018-04-24 | 宁波卫生职业技术学院 | A kind of sputum aspirator |
| CN110201249A (en) * | 2019-05-30 | 2019-09-06 | 天津市同业科技发展有限公司 | A kind of flow measurement device for vacuum suction |
| US20220088284A1 (en) * | 2019-05-30 | 2022-03-24 | Tongye Technologies Development Co., Ltd | Multifunctional central suction system capable of remote monitoring |
| CN110201249B (en) * | 2019-05-30 | 2024-05-17 | 天津市同业科技发展有限公司 | Flow measuring device for negative pressure suction |
| CN114739765A (en) * | 2022-03-23 | 2022-07-12 | 南方海洋科学与工程广东省实验室(广州) | Vacuum air extraction device and method for geotechnical 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 |
Granted publication date: 20100113 Termination date: 20180417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |