CN111150890B - Adjustable full-automatic negative pressure drainage device - Google Patents
Adjustable full-automatic negative pressure drainage device Download PDFInfo
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- CN111150890B CN111150890B CN202010062992.6A CN202010062992A CN111150890B CN 111150890 B CN111150890 B CN 111150890B CN 202010062992 A CN202010062992 A CN 202010062992A CN 111150890 B CN111150890 B CN 111150890B
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- negative pressure
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- level sensor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/73—Suction drainage systems comprising sensors or indicators for physical values
- A61M1/734—Visual indicating means for flow
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- A61M1/0001—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Power Engineering (AREA)
- Vascular Medicine (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses an adjustable full-automatic negative pressure drainage device, which comprises: the drainage tank part comprises a step variable-diameter drainage joint, a pipeline, a sheet-shaped interceptor, an air one-way valve, a U-shaped communicating vessel and a tank body; the sensor system comprises capacitance type liquid level sensors I and II, and comprises capacitance type liquid level sensors, sensor work indicating lamps, three-hole plugs or sockets and hook-and-loop fasteners; the adjustable full-automatic control device comprises a battery pack, a full-automatic main control board, a negative pressure adjusting knob, an LED flash indicator lamp, a micro vacuum pump and an intermittent buzzer; the drainage device has strong applicability, can adjust the negative pressure through the negative pressure adjusting knob according to the actual condition of a patient, automatically drains the drainage fluid, controls the micro vacuum pump to stop working when the effusion in the body of the patient is drained cleanly, the LED flash indicator lamp flashes, and the intermittent buzzer gives an alarm.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an adjustable full-automatic negative pressure drainage device.
Background
At present, the negative pressure drainage device for surgical drainage usually adopts a manual one-time preset negative pressure generator or an electric negative pressure generator, the negative pressure of the manual one-time preset negative pressure generator is gradually reduced in the using process, the negative pressure which can be accurately regulated and controlled and is continuously and stably cannot be formed, and the liquid which flows out due to improper operation can flow back to the drainage part. Although the electric negative pressure generator can generate continuous and stable negative pressure, the negative pressure is not adjustable, automatic drainage and stop cannot be realized, time and labor are wasted, the use is inconvenient, and the wide application of the electric negative pressure generator is limited.
Disclosure of Invention
Aiming at the technical problems, the invention provides an adjustable full-automatic negative pressure drainage device, which not only can realize negative pressure adjustment, but also has a full-automatic continuous and stable negative pressure drainage function.
The technical scheme adopted by the invention is as follows:
an adjustable full-automatic negative pressure drainage device comprises a drainage tank part, a sensor system and an adjustable full-automatic control device.
The drainage tank part comprises a step variable-diameter drainage joint, a pipeline, a sheet-shaped interceptor, an air one-way valve, a U-shaped communicating vessel and a tank body with liquid level volume digital scales; the air one-way valve is connected with the input ends of the step variable diameter type drainage joint and the U-shaped communicating vessel through pipelines, the output end of the U-shaped communicating vessel is connected with the tank body with liquid level volume digital scales through pipelines, and the sheet-shaped interceptor is arranged on the pipelines.
The sensor system comprises a capacitance type liquid level sensor I and a capacitance type liquid level sensor II; the capacitive liquid level sensor I comprises a capacitive liquid level sensor, a sensor work indicator lamp, a lead type three-hole plug and a sticky buckle; the capacitive liquid level sensor II comprises a capacitive liquid level sensor, a sensor work indicating lamp, a lead type three-hole socket and a sticky buckle tape; the sensor working indicator lamp is positioned on the capacitance type liquid level sensor; the magic tape and the lead are connected with the capacitance type liquid level sensor, and the lead type three-hole socket and the lead type three-hole plug are connected with the lead.
The adjustable full-automatic control device comprises a guide pipe with a screw cap, a shell, a battery pack, a full-automatic main control panel, screws, a negative pressure adjusting knob, an LED flash indicator lamp, a micro vacuum pump, a rubber support, an intermittent buzzer, an air inlet nozzle, a power main switch, a charging interface, a threaded three-hole socket and a threaded three-hole plug; the air inlet nozzle is fixed on the shell, the input end of the air inlet nozzle is connected with a guide pipe with a screw cap, and the output end of the air inlet nozzle is connected with the micro vacuum pump through the guide pipe; the exhaust hole is fixed on the shell, the input end is connected with the micro vacuum pump through a conduit, and the output end is communicated with the atmosphere; the micro vacuum pump is arranged on the rubber support, the rubber support is arranged on the shell through a screw, and the micro vacuum pump is connected with the full-automatic main control panel through a lead; the negative pressure adjusting knob and the LED flash indicator lamp are arranged at the top end of the shell and are connected with the full-automatic main control panel through a wire; the power main switch, the threaded three-hole plug and the threaded three-hole socket are arranged on the left side of the shell and are connected with the full-automatic main control board through leads; the charging interface is arranged on the left side of the shell and is connected with the battery pack through a wire; the discontinuous buzzer is arranged on the full-automatic main control panel, the full-automatic main control panel is arranged on the shell through screws, the arrangement structure is compact, the operation and control are convenient, the working state observation of the equipment is realized, the input ends of the capacitive liquid level sensors I and II are respectively provided with a screw hole type three-hole socket and a plug, and the risk of wrong signal input is avoided.
In the technical scheme, the drainage connector is of a stepped reducing structure, so that the drainage connector is conveniently connected with medical equipment with different pipe diameters, and the application range of the drainage device is enlarged.
In the technical scheme, the interceptor is of a sheet structure, simple structure and small volume.
In the technical scheme, the input end of a U-shaped communicating vessel is connected with an air one-way valve through a pipeline, the output end of the U-shaped communicating vessel is connected with a tank body with liquid level volume digital scales through a pipeline, a capacitive liquid level sensor I is fixed at the input end of the U-shaped communicating vessel through a fastening tape, and a capacitive liquid level sensor II is fixed at the output end of the U-shaped communicating vessel through a fastening tape; the sensor is a capacitance type liquid level sensor; by utilizing the liquid level difference formed by the input end and the output end of the U-shaped communicating vessel, the capacitance type liquid level sensors I and II output different voltage signals to control the micro vacuum pump to work or stop.
In the technical scheme, the negative pressure adjusting knob and the LED flash indicator lamp are arranged at the top end of the shell and are connected with the full-automatic main control panel through a wire; the micro vacuum pump is arranged on the rubber support, the rubber support is arranged on the shell through a screw, and the micro vacuum pump is connected with the full-automatic main control panel through a lead; the air inlet nozzle is fixed on the shell, the input end of the air inlet nozzle is connected with a guide pipe with a screw cap, and the output end of the air inlet nozzle is connected with the micro vacuum pump through the guide pipe; the exhaust hole is fixed on the shell, the input end is connected with the micro vacuum pump through a conduit, and the output end is communicated with the atmosphere; this arrangement mode is convenient for control and equipment operating condition observes, and the micro vacuum pump is installed on rubber support, is favorable to reducing the vibration and the noise of equipment.
The invention has the beneficial effects that:
1. the adjustable full-automatic negative pressure drainage device with the structure can freely adjust the negative pressure according to actual conditions, the negative pressure is continuously stable, the drainage process is fully automatically controlled, and when liquid drainage is completed, the drainage device automatically stops working.
2. The step variable-diameter type drainage joint in the structural part of the drainage tank is suitable for being connected with pipelines with various different calibers, the application range is wide, the sheet-shaped interceptor is small in size, convenient to use and excellent in intercepting effect, the air check valve can effectively prevent the backflow phenomenon of drainage liquid, and the volume quantity of the drainage liquid can be conveniently observed and estimated through the scale with liquid level volume numbers on the tank body.
3. The full-automatic main control panel is connected with a capacitive liquid level sensor I and a capacitive liquid level sensor II through leads, a micro vacuum pump is arranged on a rubber support, the rubber support is arranged on a shell through screws, the micro vacuum pump is connected with the full-automatic main control panel through leads, the capacitive liquid level sensor I is fixed at the input end of a U-shaped communicating vessel through a sticky buckle tape, the capacitive liquid level sensor II is fixed at the output end of the U-shaped communicating vessel through the sticky buckle tape, when the capacitive liquid level sensor I does not detect the liquid level, the capacitive liquid level sensor I outputs a high level, when the capacitive liquid level sensor II detects the liquid level, the capacitive liquid level sensor II outputs a low level, the full-automatic main control panel reads the reversed phase type liquid level signals output by the two liquid level sensors, namely when the capacitive liquid level sensor I outputs a high level, and when the capacitive liquid level sensor II outputs a low level, the micro vacuum pump is controlled to stop working, the LED flash indicator lamp is controlled to flash, and the intermittent buzzer buzzes.
4. The negative pressure adjusting knob and the micro vacuum pump are connected with the full-automatic main control board through wires. The rotation speed of the micro vacuum pump is controlled by the full-automatic main control board by adjusting the negative pressure adjusting knob, so that the size of the negative pressure is controlled.
Drawings
Fig. 1 is an external structural view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic view of the outer left side structure of the present invention.
FIG. 4 is a schematic diagram of a capacitive level sensor of the present invention.
Fig. 5 is a schematic view of the construction of the sheet-type interceptor of the present invention.
Fig. 6 is a circuit diagram of the present invention.
Labeled as: 1-a step variable diameter drainage joint; 2-pipeline; 3-a laminar flow interceptor; 4-air check valve; 5-U-shaped communicating vessels; 6-a capacitive liquid level sensor I; 7-capacitive level sensor II; 8-tank with liquid level volume digital scale; 9-a fastening tape; 10-sensor work indicator light; 11-wire three hole plug; 12-a wire; 13-a screw-capped catheter; 14-negative pressure adjusting knob; 15-LED flashing indicator light; 16-a micro vacuum pump; 17-a housing; 18-a battery pack; 19-full automatic main control panel; 20-screw, 21-rubber support; 22-intermittent buzzer; 23-an air inlet nozzle; 24-power master switch; 25-a charging interface; 26-screw three-hole plug, 27-screw three-hole socket, 28-vent; 29-wire three-jack socket, 30-capacitive level sensor.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the adjustable full-automatic negative pressure drainage device of the present invention comprises a drainage tank, a sensor system and an adjustable full-automatic control device. The drainage tank part comprises a step variable diameter type drainage joint 1, a pipeline 2, a sheet-shaped interceptor 3, an air one-way valve 4, a U-shaped communicating vessel 5 and a tank body 8 with liquid level volume digital scales; the air one-way valve 4 is connected with the input ends of the step variable diameter type drainage joint 1 and the U-shaped communicating vessel 5 through the pipeline 2, the output end of the U-shaped communicating vessel 5 is connected with the tank body 8 with liquid level volume digital scales through the pipeline 2, and the sheet-shaped interceptor 3 is installed on the pipeline 2.
The sensor system comprises a capacitance type liquid level sensor I6 and a capacitance type liquid level sensor II 7; the capacitive liquid level sensor I6 comprises a capacitive liquid level sensor 30, a sensor work indicator lamp 10, a lead 12, a lead type three-hole plug 11 and a sticky buckle 9; the capacitance type liquid level sensor II comprises a capacitance type liquid level sensor 30, a sensor work indicating lamp 10, a lead 12, a lead type three-hole socket 29 and a magic tape 9; the sensor working indicator light 10 is positioned on the capacitance type liquid level sensor 30; the magic tape 9 and the lead 12 are connected with the capacitance type liquid level sensor 30, and the lead type three-hole socket 29 and the lead type three-hole plug 11 are connected with the lead 12.
The adjustable full-automatic control device comprises a conduit 13 with a screw cap, a shell 17, a battery pack 18, a full-automatic main control panel 19, a screw 20, a negative pressure adjusting knob 14, an LED flash indicator lamp 15, a micro vacuum pump 16, a rubber support 21, an intermittent buzzer 22, an air inlet nozzle 23, a power main switch 24, a charging interface 25, a threaded three-hole socket 27 and a threaded three-hole plug 26; the air inlet nozzle 23 is fixed on the shell 17, the input end is connected with the conduit 13 with the screw cap, and the output end is connected with the micro vacuum pump 16 through the conduit 2; the exhaust hole 28 is fixed on the shell 17, the input end is connected with the micro vacuum pump 16 through the conduit 2, and the output end is communicated with the atmosphere; the micro vacuum pump 16 is arranged on a rubber support 21, the rubber support 21 is arranged on the shell 17 through a screw 20, and the micro vacuum pump 16 is connected with the full-automatic main control board 19 through a lead; the negative pressure adjusting knob 14 and the LED flash indicator 15 are arranged at the top end of the shell 17 and are connected with the full-automatic main control panel 19 through leads; the power main switch 24, the threaded three-hole plug 26 and the threaded three-hole socket 27 are arranged on the left side of the shell 17 and are connected with the full-automatic main control board 19 through wires; the charging interface 25 is arranged on the left side of the shell 17 and is connected with the battery pack 18 through a lead; the intermittent buzzer 22 is mounted on the full-automatic main control board 19, and the full-automatic main control board 19 is mounted on the housing 17 through screws 20.
The capacitance type liquid level sensor I6 is fixed at the input end of the U-shaped communicating vessel 5 through a magic tape 9, and the capacitance type liquid level sensor II 7 is fixed at the output end of the U-shaped communicating vessel through the magic tape 9; the sensor is a capacitive level sensor 30.
The capacitance type liquid level sensor I6 is connected with the full-automatic main control panel 19 through a lead 12, a lead type three-hole plug 11 and a thread type three-hole socket 27 arranged on the left side of the shell 17, and the capacitance type liquid level sensor II 7 is connected with the full-automatic main control panel 19 through the lead 12, a lead type three-hole socket 29 and a thread type three-hole plug 26 arranged on the left side of the shell 17; the negative pressure adjusting knob 14 and the LED flash indicator 15 are arranged at the top end of the shell 17 and are connected with the full-automatic main control panel 19 through leads; the intermittent buzzer 22 is arranged on the full-automatic main control panel 19, and the full-automatic main control panel 19 is arranged on the shell 17 through a screw 20; a power main switch 24 arranged on the left side of the shell 17 is connected with the full-automatic main control panel 19 through a lead; the micro vacuum pump 16 is installed on a rubber support 21, the rubber support 21 is installed on the shell 17 through a screw 20, and the micro vacuum pump 16 is connected with the full-automatic main control board 19 through a lead.
The capacitive liquid level sensor 30 outputs a high level when detecting liquid, and outputs a low level when not detecting liquid.
The power main switch 24 is pressed, the battery pack 18 supplies power to the full-automatic main control panel 19 through a lead, the full-automatic main control panel 19 controls the micro vacuum pump 16 to work, and the device generates continuous and stable negative pressure; the negative pressure adjusting knob 14 is adjusted, the full-automatic main control panel 19 controls the rotating speed of the micro vacuum pump 16, and the device generates adjustable continuous and stable negative pressure; when I6 of the capacitance type liquid level sensor does not detect the liquid level, I6 of the capacitance type liquid level sensor outputs a high level, when II 7 of the capacitance type liquid level sensor detects the liquid level, II 7 of the capacitance type liquid level sensor outputs a low level, the full-automatic main control panel 19 reads inverted liquid level signals output by the two liquid level sensors, namely, I of the capacitance type liquid level sensor outputs a high level, and when II of the capacitance type liquid level sensor outputs a low level, the micro vacuum pump 16 is controlled to stop working, the intermittent buzzer 22 is controlled to alarm, and the LED flash indicator lamp 15 is controlled to flash.
Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a full-automatic negative pressure drainage ware with adjustable, includes drainage jar part, sensor system and full automatic control device with adjustable, its characterized in that:
the drainage tank part comprises a step variable diameter type drainage joint, a pipeline, a sheet-shaped interceptor, an air one-way valve, a U-shaped communicating vessel and a tank body with liquid level volume digital scales; the step variable diameter type drainage joint, the air one-way valve, the U-shaped communicating vessel and the tank body with the liquid level volume digital scale are connected through a pipeline, and the sheet-shaped interceptor is arranged on the pipeline;
the sensor system comprises a capacitance type liquid level sensor I and a capacitance type liquid level sensor II; the capacitive liquid level sensor I comprises a capacitive liquid level sensor, a sensor work indicator lamp, a lead type three-hole plug and a sticky buckle; the capacitive liquid level sensor II comprises a capacitive liquid level sensor, a sensor work indicating lamp, a lead type three-hole socket and a sticky buckle tape; the lead type three-hole plug and the socket are connected with the capacitance type liquid level sensor through leads, and a sensor work indicating lamp and a sticky buckle tape are arranged on the sensor; the capacitive liquid level sensor I (6) is fixed at the input end of the U-shaped communicating vessel (5) through a magic tape (9), and the capacitive liquid level sensor II (7) is fixed at the output end of the U-shaped communicating vessel (5) through the magic tape (9); the sensor is a capacitive liquid level sensor (30);
the adjustable full-automatic control device comprises a guide pipe with a screw cap, a shell, a battery pack, a full-automatic main control panel, a screw, a negative pressure regulating knob, an LED flash indicator lamp, a micro vacuum pump, a rubber support, an intermittent buzzer, an air inlet nozzle, a power main switch, a charging interface, a threaded three-hole socket and a threaded three-hole plug; the battery pack, the full-automatic main control panel, the negative pressure adjusting knob, the LED flash indicator lamp, the micro vacuum pump, the intermittent buzzer, the power main switch, the charging interface, the threaded three-hole socket and the threaded three-hole plug are connected through a lead; the full-automatic control device is connected with the tank body with the liquid level volume digital scale through a guide pipe with a screw cap; the above components are all mounted on the housing.
2. The adjustable full-automatic negative pressure drainage device according to claim 1, characterized in that: and the capacitive liquid level sensor I and the capacitive liquid level sensor II are fixed at two ends of the U-shaped communicating vessel through the sticky buckle tape, and the micro vacuum pump is controlled to work or stop according to the detected liquid level states at two ends of the U-shaped communicating vessel.
3. The adjustable full-automatic negative pressure drainage device according to claim 1, characterized in that: the drainage joint is of a step variable-diameter structure.
4. The adjustable full-automatic negative pressure drainage device according to claim 1, characterized in that: the cut-off device is of a sheet structure.
5. The adjustable full-automatic negative pressure drainage device according to any one of claims 1 to 4, characterized in that: the air one-way valve (4) is connected with the input ends of the step variable diameter type drainage joint (1) and the U-shaped communicating vessel (5) through the pipeline (2), the output end of the U-shaped communicating vessel (5) is connected with the tank body (8) with liquid level volume digital scales through the pipeline (2), and the sheet-shaped interceptor (3) is installed on the pipeline (2).
6. The adjustable full-automatic negative pressure flow diverter of any one of claims 1-4, characterized in that: the sensor working indicator lamp (10) is positioned on the capacitance type liquid level sensor (30); the magic tape (9) and the lead (12) are connected with the capacitance type liquid level sensor (30), and the lead type three-hole socket (29) is connected with the lead type three-hole plug (11) and the lead (12).
7. The adjustable full-automatic negative pressure flow diverter of any one of claims 1-4, characterized in that: the air inlet nozzle (23) is fixed on the shell (17), the input end of the air inlet nozzle is connected with a guide pipe (13) with a screw cap, and the output end of the air inlet nozzle is connected with the micro vacuum pump (16) through the guide pipe (2); the exhaust hole (28) is fixed on the shell (17), the input end is connected with the micro vacuum pump (16) through the conduit (2), and the output end is communicated with the atmosphere; the micro vacuum pump (16) is arranged on a rubber support (21), the rubber support (21) is arranged on the shell (17) through a screw (20), and the micro vacuum pump (16) is connected with the full-automatic main control panel (19) through a lead; a negative pressure adjusting knob (14) and an LED flashing indicating lamp (15) are arranged at the top end of the shell (17) and are connected with a full-automatic main control panel (19) through a lead; a power main switch (24), a threaded three-hole plug (26) and a threaded three-hole socket (27) are arranged on the left side of the shell (17) and are connected with a full-automatic main control board (19) through leads; the charging interface (25) is arranged on the left side of the shell (17) and is connected with the battery pack (18) through a lead; the intermittent buzzer (22) is arranged on the full-automatic main control board (19), and the full-automatic main control board (19) is arranged on the shell (17) through a screw (20).
8. The adjustable full-automatic negative pressure flow diverter of any one of claims 1-4, characterized in that: a negative pressure adjusting knob (14) and an LED flashing indicating lamp (15) are arranged at the top end of the shell (17) and are connected with a full-automatic main control panel (19) through a lead; the micro vacuum pump (16) is arranged on a rubber support (21), the rubber support (21) is arranged on the shell (17) through a screw (20), and the micro vacuum pump (16) is connected with the full-automatic main control panel (19) through a lead; the air inlet nozzle (23) is fixed on the shell (17), the input end of the air inlet nozzle is connected with a guide pipe (13) with a screw cap, and the output end of the air inlet nozzle is connected with the micro vacuum pump (16) through the guide pipe (2); the exhaust hole (28) is fixed on the shell (17), the input end is connected with the micro vacuum pump (16) through the conduit (2), and the output end is communicated with the atmosphere.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062992.6A CN111150890B (en) | 2020-01-20 | 2020-01-20 | Adjustable full-automatic negative pressure drainage device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010062992.6A CN111150890B (en) | 2020-01-20 | 2020-01-20 | Adjustable full-automatic negative pressure drainage device |
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| CN111150890A CN111150890A (en) | 2020-05-15 |
| CN111150890B true CN111150890B (en) | 2022-07-08 |
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