CN211610984U

CN211610984U - Pressure monitoring compensation device of negative pressure suction apparatus

Info

Publication number: CN211610984U
Application number: CN202020186639.4U
Authority: CN
Inventors: 包菁静
Original assignee: Jinhua central hospital
Current assignee: Jinhua central hospital
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-10-02
Anticipated expiration: 2030-02-19

Abstract

The utility model provides a negative pressure suction apparatus pressure monitoring compensation arrangement, including the first cavity that connects gradually, electronic cavity and second cavity, first cavity is connected with former baroceptor, be equipped with control module in the electronic cavity, motor and negative pressure chamber, control module is connected with the motor electricity, external power source is connected to control module, the negative pressure intracavity is equipped with the impeller, the impeller is connected with the motor, the negative pressure chamber communicates to first cavity, be equipped with baroceptor in the second cavity, second cavity intercommunication negative pressure chamber, the second cavity is equipped with the extraction opening, baroceptor is connected with the control module electricity, and be equipped with outside input module connection control module. The utility model discloses increase the straw stability when having increased behind the negative pressure suction device pressure monitoring compensation arrangement and having produced the negative pressure, can monitor and correct the pressure of atmospheric pressure automatically.

Description

Pressure monitoring compensation device of negative pressure suction apparatus

Technical Field

The utility model belongs to the negative pressure device field relates to the negative pressure suction apparatus, especially negative pressure suction apparatus pressure monitoring compensation arrangement.

Background

The negative pressure suction apparatus has various functions, one function is used for sucking the sputum of a patient, and in the prior art, a sputum suction pipe is connected with a negative pressure suction pipe, and the negative pressure of 0.02MPa-0.04 MPa is adopted for sucking the sputum.

Two sputum suction modes are available, one mode is that a sputum suction pipe is inserted into the throat of a patient in a straight insertion mode, and sputum is sucked in 15 seconds or so. From the insertion to the lifting, it is difficult to maintain the negative pressure within a stable pressure. Creating an under-voltage problem.

The other type is a cut tube type sputum suction, in particular to a structure of patent application No. 2019212945522, the sputum suction mode is to cut a wound at the throat part and insert the trachea, the trachea is used for discharging sputum, a cover body is sleeved outside the trachea, and the cover body is connected with a negative pressure suction tube. The problem is that the air hole is arranged on the cover body, so that the negative pressure is unstable when the patient breathes. Creating an under-voltage problem.

In actual use, the large negative pressure suction device and the oxygen supply device are integrated machines, the price is high, the device only adopts manual adjustment of negative pressure to a value, the negative pressure fluctuation is large in operation, but the integrated machine is very strong, and local improvement is difficult to directly carry out.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a negative pressure suction ware pressure monitoring compensation arrangement.

The utility model solves the technical problem by adopting the following technical proposal, and is characterized in that the negative pressure aspirator pressure monitoring and compensating device comprises a first chamber, an electronic chamber and a second chamber which are connected in sequence,

the first chamber is connected with an original air pressure sensor,

a control module, a motor and a negative pressure cavity are arranged in the electronic cavity, the control module is electrically connected with the motor and is connected with an external power supply, an impeller is arranged in the negative pressure cavity and is connected with the motor, the negative pressure cavity is communicated with the first cavity,

an air pressure sensor is arranged in the second chamber, the second chamber is communicated with the negative pressure chamber, the second chamber is provided with an air exhaust port, the air pressure sensor is electrically connected with the control module,

and an external input module is connected with the control module.

The first chamber, the electronic chamber and the second chamber are all cylindrical.

The first chamber, the electronic chamber and the second chamber are detachably connected.

First chamber, electron cavity and second chamber are the tube-shape and one end has the opening, and the opening part is equipped with the screw thread, the other one end of first chamber and electron cavity is sealed and is also had the screw thread, and first chamber, electron cavity and second chamber are sealed with the screw thread, and threaded connection department is equipped with the sealing washer.

The negative pressure cavity is within and isolated from the electronic cavity.

The negative pressure cavity is provided with a pipe connecting port, the bottom of the first cavity is also provided with a pipe connecting port, the two pipe connecting ports are connected through a hose, and the hose is coiled in the electronic cavity.

The air pressure sensor adopts the range of 0-250 kpa.

The through hole of the air pressure sensor is communicated to the negative pressure cavity, the air pressure sensor is arranged at the bottom of the electronic cavity, and the air pressure sensor and the electronic cavity are integrally connected in a detachable mode.

The external input module is fixed on the electronic cavity, and a lead of the external input module extends into the electronic cavity from the side wall of the electronic cavity and is connected with the control module.

And a display screen for displaying the set air pressure and the current air pressure is integrated on the external input module.

Compared with the prior art, the negative pressure aspirator pressure monitoring and compensating device is added, the stability of the suction tube during negative pressure generation is improved, and the pressure of air pressure can be automatically monitored and corrected. The transformation of the original negative pressure suction apparatus is reduced to the minimum, and the utility model can be used by replacing the original cylinder body connected with the air pressure sensor.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the utility model discloses dissect the sketch map.

Fig. 3 is an exploded view of the present invention, wherein M represents the original structure of the vacuum extractor.

Fig. 4 is an original structure diagram of the negative pressure aspirator.

A barometer; 2, manually adjusting a valve; 3, a main air pipe; 4, a top cover; 5, an original exhaust pipe; 6 a first chamber; 7 an electronic chamber; 8 a second chamber; 9 an air extraction opening; 10 power supply lines; 11 an external input module; 12 primary air pressure sensor; 13, connecting the pipe orifice; 14 a hose; 15 air pressure sensor; 16 impellers; 17 a negative pressure cavity; 18 a control module; 19 a motor; 20 original bottle body.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

The terms "first," "second," and the like in the description of the invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

As shown in M of fig. 4, the original monitoring device includes a top cover 4, an original air pressure sensor 12 is provided on the top cover 4, a manual regulating valve 2 is provided above the top cover, and a barometer 1 and a main air tube 3 for air suction are provided, and the main air tube 3 is connected to the original vacuum extractor. The top cover 4 is provided with an original exhaust tube 5, and the top cover 4 is in threaded connection with the original bottle body 20. It should be noted that the main gas pipe 3 and the manual regulating valve 2 have high integration, are hidden in a metal bracket of the frame and are difficult to disassemble.

Gas inlet direction: the original air suction pipe 5 enters the bottle body, then enters the manual regulating valve 2 from the original air pressure sensor 12, and then enters the main air pipe 3, and the air pressure is displayed on the barometer 1.

The utility model discloses connect on top cap 4 to will carry out the shutoff with former exhaust tube 5 earlier.

The utility model discloses a first cavity 6, electron cavity 7 and the second cavity 8 that connect gradually.

The first chamber 6 is cylindrical, the opening of the first chamber is in threaded connection with the top cover 4, a rubber sealing ring is arranged at the threaded connection part, and the original air pressure sensor 12 is positioned in the first chamber 6. The first chamber 6 is screwed to the electronic chamber 7. Below the first chamber 6 there is a mouthpiece 13, through which mouthpiece 13 the gas can be connected into the first chamber 6.

The electronic chamber 7 is cylindrical, the opening of the electronic chamber is in threaded connection with the bottom of the first chamber 6, and a rubber sealing ring is arranged at the threaded connection part. A negative pressure cavity 17 is arranged in the electronic cavity 7, and the negative pressure cavity 17 is positioned in the electronic cavity 7 and isolated from the electronic cavity 7. The negative pressure cavity 17 is provided with a connecting pipe port 13 connected into the negative pressure cavity 17, the connecting pipe port 13 of the negative pressure cavity 17 is connected with the connecting pipe port 13 of the first cavity 6 through a hose 14, and the hose 14 is coiled in the electronic cavity 7. The electronic chamber 7 is secured to the first chamber 6 by a single rotation, so that the hose 14 remains free from being too tight to disengage from the nozzle 13 during rotation.

A control module 18 and a motor 19 are arranged in the electronic chamber 7, the shaft of the motor 19 extends into the negative pressure cavity 17, and an impeller 16 is arranged on the shaft of the motor 19 and used for generating negative pressure when rotating.

The control module 18 comprises a pneumatic PLC module and a stepper motor 19 control board, for example, the pneumatic PLC module is a module model number GY-63-03, a model name MS561 module, and a chip MS5611-01BA03 is used. The control module 18 is connected with the motor 19, the control module 18 is connected with the external input module 11, and a display screen for displaying the set air pressure and the current air pressure is integrated on the input module. The control module 18 is connected with an external power supply through the power line 10 and the transformer. The external input module 11 is connected with the control module 18 by extending from the side wall of the electronic chamber 7.

The external input module 11 is located outside the electronic chamber 7, preferably a touch screen type display screen, and can preset negative pressure and display current negative pressure.

The bottom of the electronic chamber 7 is provided with an air pressure sensor 15, and the air pressure sensor 15 adopts a 0-250 kpa measuring range. For example, the air pressure sensor 15 is an economical diffused silicon pressure transmitter with model number HH-319. The air pressure sensor 15 is connected to a control module 18. The bottom of the electronic cavity 7 is provided with a through hole, the air pressure sensor 15 is butted at the through hole, and the through hole is communicated to the negative pressure cavity 17.

The air pressure sensor 15 is arranged in the second chamber 8, the second chamber 8 is provided with an opening which is in threaded connection with the bottom of the electronic chamber 7, and a rubber sealing ring is arranged at the threaded connection part. The second chamber 8 is provided with an extraction opening 9 for connecting an extraction pipe.

The principle is as follows: after the manual regulating valve 2 is used for regulation, the original negative pressure is quantitative, and the phenomenon that only air leakage occurs to generate under pressure cannot be increased.

With former body 20 from original monitoring device pull down, will the utility model discloses connect on top cap 4, the switch on. As shown by an arrow gas path in FIG. 2, gas enters the second chamber 8 from the pumping hole 9, enters the negative pressure chamber 17 through the gas pressure sensor 15, and then enters the first chamber 6 to be sensed by the original gas pressure sensor 12. When the air-tight performance is good, the air pressure of the air pressure gauge 1 is approximately the same as the air pressure of the display screen. For example, the external input module 11 is set with an air pressure of 0.02MPa, when it is detected that the air pressure is lower than 0.02MPa, the motor 19 starts the impeller 16 to generate negative pressure to compensate the problem of underpressure, when the air pressure approaches 0.02MPa, the impeller 16 slowly changes to low speed or even stops, and for example, the centrifugal impeller 16 may be provided with a hole for the air to flow after the impeller 16 stops. The negative pressure received by human body can be higher than 0.02MPa to 0.03MPa, so that the human body can be slightly overpressured during control.

The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The pressure monitoring and compensating device of the negative pressure aspirator is characterized by comprising a first chamber, an electronic chamber and a second chamber which are sequentially connected,

the first chamber is connected with an original air pressure sensor,

and an external input module is connected with the control module.

2. The negative pressure aspirator pressure monitoring compensation device of claim 1, wherein the first chamber, the electronic chamber, and the second chamber are all cylindrical.

3. The negative pressure aspirator pressure monitoring compensation device of claim 1, wherein the first chamber, the electronic chamber, and the second chamber are removably connected.

4. The negative pressure aspirator pressure monitoring and compensating device of claim 1, wherein the first chamber, the electronic chamber and the second chamber are all cylindrical and have an opening at one end, threads are arranged at the opening, the other ends of the first chamber and the electronic chamber are closed and also have threads, the first chamber, the electronic chamber and the second chamber are sealed by the threads, and a sealing ring is arranged at the threaded connection.

5. The negative pressure aspirator pressure monitoring compensation device of claim 1, wherein the negative pressure chamber is within and isolated from an electronic chamber.

6. The negative pressure aspirator pressure monitoring and compensating device according to claim 1, wherein the negative pressure cavity is provided with a pipe connecting port, the bottom of the first chamber is also provided with a pipe connecting port, the two pipe connecting ports are connected through a hose, and the hose is coiled in the electronic chamber.

7. The negative pressure aspirator pressure monitoring and compensating device of claim 1, wherein the air pressure sensor adopts a range of 0-250 kpa.

8. The negative pressure aspirator pressure monitoring and compensating device of claim 1, wherein the through hole of the air pressure sensor is communicated to the negative pressure cavity, the air pressure sensor is arranged at the bottom of the electronic cavity, and the air pressure sensor and the electronic cavity are integrally and detachably connected.

9. The negative pressure aspirator pressure monitoring and compensating device of claim 1, wherein the external input module is fixed on the electronic chamber, and the external input module leads extend from the side wall of the electronic chamber to be connected with the control module.

10. The negative pressure aspirator pressure monitoring and compensating device according to claim 1, wherein a display screen for displaying the set air pressure and the current air pressure is integrated on the external input module.