CN203017450U - Medical frequency conversion constant voltage type aspirator - Google Patents
Medical frequency conversion constant voltage type aspirator Download PDFInfo
- Publication number
- CN203017450U CN203017450U CN 201220616618 CN201220616618U CN203017450U CN 203017450 U CN203017450 U CN 203017450U CN 201220616618 CN201220616618 CN 201220616618 CN 201220616618 U CN201220616618 U CN 201220616618U CN 203017450 U CN203017450 U CN 203017450U
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- negative pressure
- frequency conversion
- liquid containing
- containing bottle
- variable frequency
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Abstract
The utility model discloses a medical frequency conversion constant voltage type aspirator which comprises a first liquid storage bottle, a second liquid storage bottle, a filter, a pressure sensor, a check valve, a frequency conversion oilless negative pressure pump, a silencer, an intelligent negative pressure controller, a parameter setting display panel and a frequency conversion driver. The first liquid storage bottle is sequentially connected with the second liquid storage bottle, the filter, the pressure sensor, the check valve, the frequency conversion oilless negative pressure pump and the silencer through drainage tubes. The parameter setting display panel, the pressure sensor and the frequency conversion driver are respectively connected with the intelligent negative pressure controller. The frequency conversion driver is further connected with the frequency conversion oilless negative pressure pump. The medical frequency conversion constant voltage type aspirator can work under the condition of pressure frequency conversion, not only is energy saved, but also the service life of the aspirator is prolonged, and a constant negative pressure condition can be further satisfied.
Description
Technical field
This utility model relates to a kind of Medical vacuum extractor, is specifically related to a kind of medical variable frequency constant pressure type suction pump.
Background technology
Present most of vacuum extractor adopts fixed constant speed mode frequently to move, it is to regulate pressure by changing the air that sucks different ratios that its negative pressure is controlled, not only waste electric energy but also affect service life of a machine, and this mode pressure oscillation is larger, requiring under the controlled stable care applications of constant drainage and pressure this obvious Shortcomings of mode of regulating pressure by changing the air that sucks different ratios.
The utility model content
Utility model purpose: for the problem and shortage of above-mentioned prior art existence, the purpose of this utility model is to provide a kind of medical variable frequency constant pressure type suction pump, adopt frequency-variable closed loop automatic control mode adjusting pressure, not only energy-conservation but also extend service life of machine, and can also satisfy sustained negative pressure state.
technical scheme: for realizing above-mentioned utility model purpose, the technical solution adopted in the utility model is a kind of medical variable frequency constant pressure type suction pump, comprise the first liquid containing bottle, the second liquid containing bottle, filter, pressure transducer, check valve, frequency conversion is without oily negative pressure pump, deafener, the Intelligent negative pressure controller, parameter arranges display floater and variable frequency drives, described the first liquid containing bottle connects the second liquid containing bottle successively by drainage tube, filter, pressure transducer, check valve, frequency conversion is without oily negative pressure pump and deafener, described parameter arranges display floater, pressure transducer and variable frequency drives connect respectively the Intelligent negative pressure controller, described variable frequency drives also connects frequency conversion without oily negative pressure pump.
Preferably, also comprise hydroful stop valve, full liquid sensor and alarm, described full liquid sensor is located in the second liquid containing bottle, described full liquid sensor is connected the Intelligent negative pressure controller with alarm, described hydroful stop valve is located in the second liquid containing bottle, and this hydroful stop valve connects filter by drainage tube.
Preferably, also comprise Pressure gauge, a described manometric end connects filter, and other end Bonding pressure sensor in case parameter arranges the display floater cisco unity malfunction, can read current pressure by Pressure gauge.
Preferably, also comprise switch, described switch connects described the first liquid containing bottle by drainage tube.
Beneficial effect: this utility model can be worked under pressure frequency conversion state, and is not only energy-conservation but also extend service life of machine, and can also satisfy sustained negative pressure state.
Description of drawings
Fig. 1 is the pneumatic diagram of this utility model medical variable frequency constant voltage suction pump;
Fig. 2 is the structural representation of this utility model control section;
Fig. 3 is the signal diagram that this utility model is reduced to the constant voltage closed loop control.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate this utility model, should understand these embodiment only is used for explanation this utility model and is not used in restriction scope of the present utility model, after having read this utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
as depicted in figs. 1 and 2, in parameter, required negative pressure value (comprising lower limit and higher limit) and the parameter of setting on panel is set at the beginning, start medical variable frequency constant pressure type suction pump, machine is started working, this moment, pressure transducer 7 gathered the pressure in pipelines, the current pressure value is sent into Intelligent negative pressure controller (core component of Intelligent negative pressure controller is single-chip microcomputer), the Intelligent negative pressure controller is presented at parameter with the current pressure value and arranges on display floater, and the current pressure value is compared with negative pressure (lower limit) value of setting, draw this time difference value larger after the computing of Intelligent negative pressure controller, the difference of calculating is regulated and controled frequency conversion, then frequency variation signal is exported to variable frequency drives, variable frequency drives is according to the frequency variation signal output corresponding frequencies of giving, control frequency conversion without the rotating speed of oily negative pressure pump (BM) 9, make frequency conversion the fastest without the speed of evacuation of oily negative pressure pump 9.when negative pressure value is more and more lower, the pressure signal that the Intelligent negative pressure controller is passed back according to pressure transducer 7, constantly carry out computing, adjust in real time the frequency variation signal of output, frequency conversion is reduced gradually without the rotating speed of oily negative pressure pump 9, frequency conversion slows down without the speed of evacuation of oily negative pressure pump 9, when negative pressure value approaches setting value, the negative pressure curve of this moment becomes mild, frequency conversion is more and more lower without the rotating speed of oily negative pressure pump 9, when negative pressure value equals to set value, the Intelligent negative pressure controller is sent the stall signal, frequency conversion is without oily negative pressure pump 9 stalls, thereby whole negative pressure maintains on the negative pressure force value that sets, when the needs drain, open switch 1, the liquid drain thing is subjected to the impact of Negative Pressure Difference to enter the bottom of the first liquid containing bottle 2 by drainage tube 12, due to the outlet of the first liquid containing bottle 2 in a high position, the liquid drain thing is trapped within the first liquid containing bottle 2, and negative-pressure gas is pumped and enters the second liquid containing bottle 3, and through hydroful stop valve 4, filter 5 (being used for filtering the impurity that negative-pressure gas is sneaked into), Pressure gauge 6, pressure transducer 7 and check valve 8 enter frequency conversion without the entrance of oily negative pressure pump 9, negative-pressure gas is discharged after finally by deafener 10 noise reductions, the negative pressure gas circuit just can be set up like this, after the liquid drain thing is full of the first liquid containing bottle 2, can enter the second liquid containing bottle 3.When the second liquid containing bottle 3 is filled by the liquid drain thing, full liquid sensor 11 collects full liquid signal, give the Intelligent negative pressure controller, this moment, the Intelligent negative pressure controller was sent stall signal to frequency conversion without oily negative pressure pump 9 by variable frequency drives, and send alarm signal by alarm, the prompting staff will clear up the liquid drain thing in liquid containing bottle.When negative pressure pressure is increased to the higher limit of setting, the Intelligent negative pressure controller obtains pressure information by pressure transducer 7, carry out the parameter analysis, if reach entry condition, start frequency conversion without oily negative pressure pump 9 work, frequency conversion is that pressure information according to pressure transducer 7 comes closed loop control to regulate without the rotating speed of oily negative pressure pump 9, and control procedure as shown in Figure 3.When full liquid sensor 11 occurs that acquired signal is abnormal and to cause drain to fill with the second liquid containing bottle 3 also wrong when making frequency conversion without oily negative pressure pump 9 work, hydroful stop valve 4 is subjected to buoyancy, push up the place, bottleneck gas outlet of upper the second liquid containing bottle 3, prevent that drain from entering rear class pipeline and frequency conversion without in oily negative pressure pump 9, prevent that pump from working under abnormal condition.
Claims (4)
1. medical variable frequency constant pressure type suction pump, comprise the first liquid containing bottle, the second liquid containing bottle, filter, pressure transducer, check valve, frequency conversion is without oily negative pressure pump, deafener, the Intelligent negative pressure controller, parameter arranges display floater and variable frequency drives, described the first liquid containing bottle connects the second liquid containing bottle successively by drainage tube, filter, pressure transducer, check valve, frequency conversion is without oily negative pressure pump and deafener, described parameter arranges display floater, pressure transducer and variable frequency drives connect respectively the Intelligent negative pressure controller, described variable frequency drives also connects frequency conversion without oily negative pressure pump.
2. medical variable frequency constant pressure type suction pump according to claim 1, it is characterized in that: also comprise hydroful stop valve, full liquid sensor and alarm, described full liquid sensor is located in the second liquid containing bottle, described full liquid sensor is connected the Intelligent negative pressure controller with alarm, described hydroful stop valve is located in the second liquid containing bottle, and this hydroful stop valve connects filter by drainage tube.
3. medical variable frequency constant pressure type suction pump according to claim 1, it is characterized in that: also comprise Pressure gauge, a described manometric end connects filter, other end Bonding pressure sensor.
4. medical variable frequency constant pressure type suction pump according to claim 1, it is characterized in that: also comprise switch, described switch connects described the first liquid containing bottle by drainage tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616618 CN203017450U (en) | 2012-11-20 | 2012-11-20 | Medical frequency conversion constant voltage type aspirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616618 CN203017450U (en) | 2012-11-20 | 2012-11-20 | Medical frequency conversion constant voltage type aspirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203017450U true CN203017450U (en) | 2013-06-26 |
Family
ID=48641471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220616618 Expired - Fee Related CN203017450U (en) | 2012-11-20 | 2012-11-20 | Medical frequency conversion constant voltage type aspirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203017450U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104146788A (en) * | 2014-07-18 | 2014-11-19 | 苏州市君威医疗设备有限公司 | Intelligent negative pressure control aspirator applied to dental department |
| CN107670129A (en) * | 2017-11-08 | 2018-02-09 | 武姗姗 | A kind of obstetrics and gynecology department operation nursing negative pressure suction device |
| US11857457B2 (en) | 2020-05-21 | 2024-01-02 | Good News Medical Co., Ltd. | Device for alleviating obstructive sleep apnea |
-
2012
- 2012-11-20 CN CN 201220616618 patent/CN203017450U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104146788A (en) * | 2014-07-18 | 2014-11-19 | 苏州市君威医疗设备有限公司 | Intelligent negative pressure control aspirator applied to dental department |
| CN107670129A (en) * | 2017-11-08 | 2018-02-09 | 武姗姗 | A kind of obstetrics and gynecology department operation nursing negative pressure suction device |
| US11857457B2 (en) | 2020-05-21 | 2024-01-02 | Good News Medical Co., Ltd. | Device for alleviating obstructive sleep apnea |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131120 |