CN202289184U - Automatic pressure regulating device for central negative pressure aspirator - Google Patents
Automatic pressure regulating device for central negative pressure aspirator Download PDFInfo
- Publication number
- CN202289184U CN202289184U CN2011203911770U CN201120391177U CN202289184U CN 202289184 U CN202289184 U CN 202289184U CN 2011203911770 U CN2011203911770 U CN 2011203911770U CN 201120391177 U CN201120391177 U CN 201120391177U CN 202289184 U CN202289184 U CN 202289184U
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- China
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- negative pressure
- pressure
- electromagnetic valve
- valve group
- solenoid valve
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Abstract
The utility model relates to an automatic pressure regulating device for a central negative pressure aspirator. The device consists of an air supply solenoid valve group and an air release solenoid valve group, wherein the air supply solenoid valve group and the air release solenoid valve group are arranged in a combined mode; negative pressure pipelines before and after the two solenoid valve groups are provided with a sensor respectively; two air supply solenoid valves in the air supply solenoid valve group are connected in parallel; a throttling valve is arranged on one air supply solenoid valve; two air release solenoid valves in the air escape solenoid valve group are connected in parallel; and a throttling valve is arranged on one air escape solenoid valve. The pressure regulating device has a simple and feasible structure and a scientific and reasonable design, the negative pressure can be automatically adjusted, the problems in the conventional negative pressure aspirating process are solved, and constant negative pressure is normally supplied to a liquid collecting bottle; and therefore, normal medical treatment is guaranteed.
Description
Technical field
This utility model belongs to medical instruments field, relates to vacuum extractor, especially a kind of automatic pressure regulating device of central negative pressure suction pump.
Background technology
The negative pressure lead device uses comparatively general in operative drainage, imbibition, and the precision size of central negative pressure control directly has influence on the negative pressure imbibition, also has influence on the quality of therapeutic effect.At present, the control of the negative pressure of central negative pressure suction pump is employed in the form that installs needle-valve on the negative pressure line additional basically, controls negative pressure through the aperture of needle-valve.But patient's lateral pressure of this method control can change with the pressure oscillation of central negative potential source and change, and can't accurately control the constant of negative pressure, and the adjusting pressure efficiency is lower, brings pain even increases the state of an illness to the patient, also makes troubles to treatment simultaneously.
Through retrieval, do not find the publication document identical with present patent application.
Summary of the invention
The purpose of this utility model is to overcome the weak point of prior art, but the automatic pressure regulating device of the central negative pressure suction pump of the high automatic constant control of a kind of negative pressure control accuracy negative pressure is provided.
The purpose of this utility model realizes through following technical scheme:
A kind of automatic pressure regulating device of central negative pressure suction pump; Be installed between negative pressure liquid-collecting bottle and the external source of the gas; This device external gas source is equipped with a check valve, and the negative pressure liquid-collecting bottle connects patient's imbibition position through negative pressure line, and the negative pressure pipe connects this regulator through the anti-overflow filter; It is characterized in that: this regulator is made up of QI invigorating electromagnetic valve group and pressure-releasing electromagnetic valve group, and QI invigorating electromagnetic valve group and pressure-releasing electromagnetic valve group are provided with for combination; On the forward and backward negative pressure line of two groups of electromagnetic valve groups, be separately installed with a pick off, two QI invigorating electromagnetic valves of QI invigorating electromagnetic valve group are parallel form, on a QI invigorating electromagnetic valve choke valve are installed therein; Two pressure-releasing electromagnetic valves of pressure-releasing electromagnetic valve group are parallel form, on a pressure-releasing electromagnetic valve choke valve are installed also therein.
And said two pressure-releasing electromagnetic valves are separately installed with deafener.
Advantage of this utility model and beneficial effect are:
1, this regulator utilizes two groups of four electromagnetic valves to realize the switching of negative pressure; Wherein one group of QI invigorating electromagnetic valve and one group of pressure-releasing electromagnetic valve; Every group of electromagnetic valve is two and also on the pipeline of an electromagnetic valve choke valve is installed therein; When can be implemented in quick venting, QI invigorating thus, also can switch to the QI invigorating of exitting at a slow speed, effectively guarantee the constant of the interior negative pressure of liquid-collecting bottle.
2, this regulator is simple in structure feasible, and design science is reasonable, can adjust negative pressure automatically, has overcome the problem that occurs in the existing negative pressure imbibition process, has guaranteed the normal supply of the constant negative pressure in the liquid-collecting bottle, has also ensured normally carrying out of medical treatment thus.
Description of drawings
Fig. 1 is the contour structures sketch map of this utility model;
Fig. 2 is that the negative pressure line of this utility model connects sketch map;
Fig. 3 is the process flow diagram of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing and through specific embodiment this utility model is done further to detail, following examples are just described
The property, not determinate, can not limit the protection domain of this utility model with this.
A kind of automatic pressure regulating device of central negative pressure suction pump is referring to Fig. 1, Fig. 2.
This regulator is installed between negative pressure liquid-collecting bottle LQ and the external source of the gas Q1, and the external gas source is equipped with a check valve D1, and the negative pressure liquid-collecting bottle connects patient's imbibition position through imbibition pipeline G2, and negative pressure pipe G1 connects this regulator through anti-overflow filter F 1.
The structure of this regulator is following:
The electromagnetic valve of installation group 1 is arranged between negative pressure line spigot joint 6 and the external source of the gas spigot joint 3, and this electromagnetic valve group comprises QI invigorating electromagnetic valve V4, V3 and pressure-releasing electromagnetic valve V2, V1, and QI invigorating electromagnetic valve group and pressure-releasing electromagnetic valve group are provided with for combination; One pressure transducer (P1, P2) respectively is installed respectively on the pick off of electromagnetic valve group spigot joint 4,5, is used for the negative pressure value on the signal piping; Two QI invigorating electromagnetic valves of QI invigorating electromagnetic valve group are parallel form, on a QI invigorating electromagnetic valve choke valve JL1 are installed therein; Two pressure-releasing electromagnetic valves of pressure-releasing electromagnetic valve group also are parallel form, on a pressure-releasing electromagnetic valve choke valve JL2 are installed therein.The effect of two throttle orifices is when needing fine setting QI invigorating and venting, to switch to this two electromagnetic valves.When a large amount of QI invigorating of needs and venting, switch to other two electromagnetic valves.
Two pressure-releasing electromagnetic valves are separately installed with deafener 2 (X1, X2).
QI invigorating electromagnetic valve group of this regulator and pressure-releasing electromagnetic valve group can be made up of 1 to 100 electromagnetic valve respectively according to pressure controlled actual needs.Choke valve is in actual application, and throttle orifice can be used for replacing.
Claims (2)
1. the automatic pressure regulating device of a central negative pressure suction pump; Be installed between negative pressure liquid-collecting bottle and the external source of the gas; This device external gas source is equipped with a check valve, and the negative pressure liquid-collecting bottle connects patient's imbibition position through negative pressure line, and the negative pressure pipe connects this regulator through the anti-overflow filter; It is characterized in that: this regulator is made up of QI invigorating electromagnetic valve group and pressure-releasing electromagnetic valve group, and QI invigorating electromagnetic valve group and pressure-releasing electromagnetic valve group are provided with for combination; On the forward and backward negative pressure line of two groups of electromagnetic valve groups, be separately installed with a pick off, two QI invigorating electromagnetic valves of QI invigorating electromagnetic valve group are parallel form, on a QI invigorating electromagnetic valve choke valve are installed therein; Two pressure-releasing electromagnetic valves of pressure-releasing electromagnetic valve group are parallel form, on a pressure-releasing electromagnetic valve choke valve are installed also therein.
2. the automatic pressure regulating device of central negative pressure suction pump according to claim 1 is characterized in that: said two pressure-releasing electromagnetic valves are separately installed with deafener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203911770U CN202289184U (en) | 2011-10-14 | 2011-10-14 | Automatic pressure regulating device for central negative pressure aspirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203911770U CN202289184U (en) | 2011-10-14 | 2011-10-14 | Automatic pressure regulating device for central negative pressure aspirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289184U true CN202289184U (en) | 2012-07-04 |
Family
ID=46358176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203911770U Withdrawn - After Issue CN202289184U (en) | 2011-10-14 | 2011-10-14 | Automatic pressure regulating device for central negative pressure aspirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327663A (en) * | 2011-10-14 | 2012-01-25 | 天津市同业科技发展有限公司 | Automatic pressure regulating device for central negative pressure aspirator |
| CN104353133A (en) * | 2014-08-12 | 2015-02-18 | 天津市同业科技发展有限公司 | Automatic pressure regulating controller for negative pressure system |
-
2011
- 2011-10-14 CN CN2011203911770U patent/CN202289184U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327663A (en) * | 2011-10-14 | 2012-01-25 | 天津市同业科技发展有限公司 | Automatic pressure regulating device for central negative pressure aspirator |
| CN104353133A (en) * | 2014-08-12 | 2015-02-18 | 天津市同业科技发展有限公司 | Automatic pressure regulating controller for negative pressure system |
| CN104353133B (en) * | 2014-08-12 | 2016-08-24 | 天津市同业科技发展有限公司 | A kind of automatic voltage-regulating controller for negative pressure system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20130424 |
|
| RGAV | Abandon patent right to avoid regrant |