CN111853279B - Mechanical two-way valve, air pump and electronic blood pressure monitor - Google Patents
Mechanical two-way valve, air pump and electronic blood pressure monitor Download PDFInfo
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- CN111853279B CN111853279B CN202010686027.6A CN202010686027A CN111853279B CN 111853279 B CN111853279 B CN 111853279B CN 202010686027 A CN202010686027 A CN 202010686027A CN 111853279 B CN111853279 B CN 111853279B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/022—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising a deformable member
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Physiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Ophthalmology & Optometry (AREA)
- Multiple-Way Valves (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
本申请提供了一种机械式双路阀、气泵及电子血压计，该机械式双路阀包括第一壳体、第二壳体和安装于第一壳体与第二壳体之间的弹性件。第一壳体上分别开设有排气孔和第一通气孔；第二壳体上开设有进气孔。通过将气泵的出气口与机械式双路阀的进气孔连通，将第一通气孔与袖带连通。当气泵向机械式双路阀供气时，弹性件在进气孔的大气压力下朝排气孔的方向变形，将排气孔封堵，进气孔与第一通气孔连通，可向袖带充气；当气泵停止供气时，弹性件在弹力作用下恢复原状，将进气孔封堵，排气孔与第一通气孔连通，可将袖带中的气体排出。该电子血压计无需采用传统的螺线管式的电磁阀结构，可实现机械式进气与排气，电能消耗少，且体积小，结构简单。
The present application provides a mechanical two-way valve, an air pump and an electronic sphygmomanometer, wherein the mechanical two-way valve comprises a first shell, a second shell and an elastic member installed between the first shell and the second shell. An exhaust hole and a first vent hole are respectively provided on the first shell; an air inlet hole is provided on the second shell. The first vent hole is connected to the cuff by connecting the air outlet of the air pump with the air inlet hole of the mechanical two-way valve. When the air pump supplies air to the mechanical two-way valve, the elastic member deforms toward the exhaust hole under the atmospheric pressure of the air inlet hole, blocks the exhaust hole, and connects the air inlet hole with the first vent hole, so that the cuff can be inflated; when the air pump stops supplying air, the elastic member returns to its original state under the action of elastic force, blocks the air inlet hole, and connects the exhaust hole with the first vent hole, so that the gas in the cuff can be discharged. The electronic sphygmomanometer does not need to adopt the traditional solenoid-type electromagnetic valve structure, can realize mechanical air intake and exhaust, consumes less power, has a small size and a simple structure.
Description
Technical Field
The application belongs to the field of electronic blood pressure meters, and particularly relates to a mechanical double-way valve, an air pump using the mechanical double-way valve and an electronic blood pressure meter using the air pump.
Background
When blood pressure measurement is performed using an electronic blood pressure meter, it is necessary to rapidly discharge compressed gas in the cuff or the cuff bladder after the measurement is completed. Currently, an electronic blood pressure monitor generally uses a solenoid type solenoid valve for air discharge. However, solenoid-type solenoid valves have a large power consumption, which reduces the life of electronic blood pressure monitors powered by dry batteries, and require many wires to connect, resulting in a large volume and a complex structure of the electronic blood pressure monitors.
Disclosure of Invention
The embodiment of the application aims to provide a mechanical double-way valve, an air pump and an electronic sphygmomanometer, which are used for solving the problems of high power consumption, large volume and complex structure of the electronic sphygmomanometer using an electromagnetic valve in the related technology.
In order to achieve the above purpose, the technical scheme adopted by the embodiment of the application is as follows:
in one aspect, there is provided a mechanical two-way valve comprising:
the first shell is provided with an exhaust hole and a first vent hole respectively;
The second shell is connected with the first shell, an air inlet hole is formed in the second shell, a containing cavity is enclosed by the first shell and the second shell, and the air outlet hole, the first vent hole and the air inlet hole are respectively communicated with the containing cavity;
The elastic piece is arranged in the accommodating cavity and used for blocking the exhaust hole when being deformed by external pressure so as to communicate the air inlet hole with the first vent hole and blocking the air inlet hole when being restored to the original state under the action of elastic force so as to communicate the exhaust hole with the first vent hole.
In one embodiment, the elastic piece is bowl-shaped, a first air chamber is enclosed between the elastic piece and the first shell, the exhaust hole and the first vent hole are respectively communicated with the first air chamber, a second air chamber is enclosed between the elastic piece and the second shell, the air inlet hole is communicated with the second air chamber, a second air vent hole is further formed in the second shell, and the second air vent hole is used for controlling the communication and disconnection between the first air chamber and the second air chamber.
In another embodiment, a third vent hole communicated with the first vent hole is further formed in the first shell.
In yet another embodiment, the elastic member is in a sheet shape, a fourth air hole is formed in the elastic member, a boss is arranged on the second housing at a position right opposite to the fourth air hole, the boss is used for being separated from the fourth air hole when the elastic member is deformed under external pressure so as to realize that the elastic member seals the air outlet hole, the first air hole is communicated with the air inlet hole, and is used for sealing the fourth air hole when the elastic member is restored to an original state under the action of elasticity so as to realize that the elastic member seals the air inlet hole, and the first air hole is communicated with the air outlet hole.
In yet another embodiment, a first groove is formed in the first housing at a position right opposite to the boss, the first groove is spaced from the boss, and the fourth air hole is formed between the boss and the first groove.
In yet another embodiment, a second groove is formed in a side surface of the first housing facing the second housing, a ring for abutting against the elastic piece to seal the vent hole is installed in the second groove, and one end of the vent hole is arranged on the bottom surface of the second groove.
In another aspect, there is provided an air pump comprising:
The above-described mechanical two-way valve;
the check valve assembly is connected with the mechanical double-way valve and comprises a check valve supporting seat, and an air inlet umbrella valve and an air outlet umbrella valve which are respectively arranged on the check valve supporting seat, wherein the air outlet umbrella valve is communicated with the air inlet hole of the mechanical double-way valve;
The piston assembly comprises a piston supporting seat connected with the one-way valve supporting seat and two piston bodies arranged on the piston supporting seat, the two piston bodies are respectively opposite to the air inlet umbrella valve and the air outlet umbrella valve, and a first through hole for communicating the air inlet umbrella valve with the outside air is formed in the piston supporting seat;
the driving assembly is connected with the piston assembly and used for driving the two piston bodies to alternately reciprocate so as to enable the air outlet umbrella valve to supply air, and the air inlet umbrella valve sucks air.
In one embodiment, the drive assembly includes:
the two ends of the transmission wing piece are respectively connected with the two piston bodies;
One end of the connecting shaft is connected with the middle part of the transmission wing piece;
an eccentric rotor connected with the other end of the connecting shaft;
and the motor is connected with the eccentric rotor and used for driving the eccentric rotor to rotate.
In one embodiment, the driving assembly further comprises a motor support seat for supporting the piston support seat, a second through hole communicated with the first through hole is formed in the motor support seat, the motor support seat is connected with the motor, and the eccentric rotor, the connecting shaft and the transmission wing are arranged in a space enclosed by the piston support seat and the motor support seat.
In yet another aspect, there is provided an electronic blood pressure meter including:
the air pump;
the air pressure sensor is communicated with the air outlet of the air pump;
And the sleeve belts are respectively communicated with the air outlet of the air pump and the air pressure sensor.
The one or more technical schemes in the embodiment of the application have at least one of the following technical effects that the first vent hole is communicated with the sleeve belt by communicating the air outlet of the air pump with the air inlet hole of the mechanical double-way valve. When the air pump stops supplying air, the elastic piece is restored to the original state under the action of elasticity to block the air inlet hole, and the air outlet hole is communicated with the first air hole to exhaust the air in the cuff. Therefore, the electronic sphygmomanometer does not need to adopt a traditional solenoid type electromagnetic valve structure, can realize mechanical air intake and air exhaust, has less electric energy consumption, small volume and simple structure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or exemplary technical descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a mechanical two-way valve according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a mechanical two-way valve according to a first embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a mechanical two-way valve according to a first embodiment of the present application in an exhaust state;
FIG. 4 is a schematic cross-sectional view of a mechanical two-way valve according to a first embodiment of the present application in an air-supplied state;
FIG. 5 is a schematic diagram of a mechanical two-way valve according to a second embodiment of the present application;
FIG. 6 is a schematic diagram of a mechanical two-way valve according to a second embodiment of the present application;
FIG. 7 is a schematic cross-sectional view of a mechanical two-way valve according to a second embodiment of the present application in an exhaust state;
FIG. 8 is a schematic cross-sectional view of a mechanical two-way valve according to a second embodiment of the present application in an air-supplied state;
FIG. 9 is a schematic diagram of a mechanical two-way valve according to a third embodiment of the present application;
FIG. 10 is a schematic diagram II of a mechanical two-way valve according to a third embodiment of the present application;
FIG. 11 is a schematic cross-sectional view of a mechanical two-way valve according to a third embodiment of the present application in an exhaust state;
FIG. 12 is a schematic cross-sectional view of a mechanical two-way valve according to a third embodiment of the present application in an air-supplied state;
FIG. 13 is an exploded view of an air pump according to a first embodiment of the present application;
FIG. 14 is a second exploded view of the air pump according to the first embodiment of the present application;
FIG. 15 is a schematic cross-sectional view of an air pump according to a first embodiment of the present application in a discharged state;
FIG. 16 is a schematic cross-sectional view of an air pump according to a first embodiment of the present application in an air supply state;
FIG. 17 is a schematic cross-sectional view of a mechanical two-way valve in an electronic blood pressure monitor according to an embodiment of the present application in an exhaust state;
FIG. 18 is a schematic cross-sectional view of a mechanical two-way valve in an electronic blood pressure monitor according to an embodiment of the present application in an air-supplied state;
fig. 19 is an equivalent schematic diagram of an electronic sphygmomanometer according to an embodiment of the present application.
Wherein, each reference numeral in the figure mainly marks:
1-a first shell, 11-an exhaust hole, 12-a first vent hole, 13-a third vent hole, 14-a first groove, 15-a second groove and 16-a ring;
2-a second shell, 21-an air inlet hole, 22-a second air vent, 23-a positioning rod and 24-a boss;
3-elastic piece, 30-blind hole and 31-fourth air hole;
the device comprises a 4-one-way valve assembly, a 41-one-way valve supporting seat, a 42-air inlet umbrella valve and a 43-air outlet umbrella valve;
5-piston assembly, 50-first through hole, 51-piston supporting seat, 52-piston body;
6-driving components, 61-motors, 62-eccentric rotors, 63-connecting shafts, 64-transmission wings, 65-motor supporting seats, 650-second through holes and 66-screws;
7-air pump, 71-air outlet, 72-air outlet;
8-air pressure sensor and 9-sleeve belt.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," "third," "fourth" and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present application, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The direction indicated by the arrow in the figure is the direction in which air flows.
Embodiment one:
Referring to fig. 3 and 4, a mechanical two-way valve according to a first embodiment of the present application will now be described. The mechanical two-way valve includes a first housing 1, a second housing 2, and an elastic member 3 mounted between the first housing 1 and the second housing 2. The first casing 1 and the second casing 2 are connected and sealed, a containing cavity (not shown) is enclosed between the first casing 1 and the second casing 2, and the elastic piece 3 is clamped and fastened in the containing cavity by the first casing 1 and the second casing 2. The first shell 1 is provided with an exhaust hole 11 and a first vent hole 12 respectively, the exhaust hole 11 and the first vent hole 12 are communicated with the accommodating cavity respectively, the second shell 2 is provided with an air inlet 21, and the air inlet 21 is communicated with the accommodating cavity. In the initial position state, the elastic member 3 is not deformed, and at this time, the elastic member 3 seals the air inlet 21, and the air outlet 11 is communicated with the first air vent 12. When the air is supplied to the air inlet 21, the elastic piece 3 deforms towards the direction of the air outlet 11 under the pressure of the high-pressure air supplied by the air inlet 21, and at the moment, the deformed elastic piece 3 seals the air outlet 11, the air inlet 21 is communicated with the first air vent 12, and the air supply of the mechanical double-way valve is realized. When the air supply to the air inlet 21 is stopped, the elastic piece 3 is restored to the initial position state under the action of self elasticity, at the moment, the air inlet 21 is blocked by the elastic piece 3, the air outlet 11 is communicated with the first air vent 12, and the mechanical air discharge of the mechanical double-way valve is realized.
In an embodiment, referring to fig. 3 and 4, as a specific implementation manner of the mechanical two-way valve provided in the first embodiment of the present application, the elastic member 3 is in a bowl-cup shape, a first air chamber (not shown) is enclosed between the elastic member 3 and the first housing 1, the air vent 11 and the first air vent 12 are respectively communicated with the first air chamber, a second air chamber (not shown) is enclosed between the elastic member 3 and the second housing 2, the air inlet 21 is communicated with the second air chamber, and a second air vent 22 is further provided on the second housing 2, where the second air vent 22 is used for controlling the communication and disconnection between the first air chamber and the second air chamber. In this structure, when the air is supplied to the second air chamber through the air inlet 21, and the pressure in the second air chamber is greater than the pressure in the first air chamber, the elastic member 3 deforms in the direction of the air outlet 11 under the action of the pressure, at this time, the air outlet 11 is blocked by the elastic member 3, the second air outlet 22 can communicate the first air chamber with the second air chamber, and the air in the second air chamber can be discharged into the first air outlet 12 through the second air outlet 22, so that the air supply of the mechanical double-way valve is realized. When the air supply to the second air chamber is stopped, and the pressure in the second air chamber is smaller than or equal to the pressure in the first air chamber, the elastic piece 3 is restored to the initial position state under the action of self elasticity, the air inlet 21 is plugged by the elastic piece 3, the first air chamber and the second air chamber are disconnected by the second air vent 22, and at the moment, the air outlet 11 is communicated with the first air vent 12, so that the mechanical double-way valve is exhausted.
In one embodiment, referring to fig. 1 and 2, a plurality of positioning rods 23 are installed on the side of the second housing 2 facing the elastic member 3 at intervals, and blind holes 30 for each positioning rod 23 to extend into are correspondingly formed on the elastic member 3. According to the structure, the elastic piece 3 can be rapidly positioned and disassembled through the matching of the positioning rod 23 and the blind hole 30, and the disassembly and assembly efficiency of the elastic piece is improved.
Referring to fig. 13 and 14, an air pump 7 is also provided in accordance with a first embodiment of the present application. The air pump 7 includes the mechanical two-way valve, the one-way valve assembly 4, the piston assembly 5 and the driving assembly 6 described above. Referring to fig. 13 and 15, the check valve assembly 4 includes a check valve support seat 41 connected to the second housing 2, and an air inlet umbrella valve 42 and an air outlet umbrella valve 43 mounted on the check valve support seat 41 for inlet and outlet, respectively, the air outlet umbrella valve 43 being in communication with the air inlet 21 of the mechanical two-way valve for supplying air into the mechanical two-way valve.
Referring to fig. 13 and 15, the piston assembly 5 includes a piston support seat 51 connected to the check valve support seat 41, and two piston bodies 52 mounted on the piston support seat 51, the two piston bodies 52 being disposed opposite to the intake umbrella valve 42 and the exhaust umbrella valve 43, respectively. One piston body 52 is used for gas to enter the outlet umbrella valve 43 to supply gas to the mechanical two-way valve, and the other piston body 52 is used for gas to be sucked in by the inlet umbrella valve 42. The piston support seat 51 is provided with a first through hole 50 for communicating the intake umbrella valve 42 with the outside air. The intake umbrella valve 42 can suck external air through the first through hole 50, thereby achieving suction and discharge of the piston assembly 5. Wherein, two piston bodies 52 can be integrated into one piece, and the processing preparation of being convenient for is efficient.
Referring to fig. 13, the driving assembly 6 is connected to the piston assembly 5, and is used for driving two piston bodies 52 in the piston assembly 5 to reciprocate up and down alternately, so that the air outlet umbrella valve 43 supplies air to the mechanical two-way valve, and the air inlet umbrella valve 42 sucks air to the outside. The driving assembly 6 may adopt any power structure of the existing air pump structure.
In one embodiment, referring to fig. 13 and 15, as a specific implementation of the mechanical two-way valve provided as a first embodiment of the present application, the driving assembly 6 may include a motor 61, an eccentric rotor 62 connected to an output shaft of the motor 61, a connecting shaft 63 having one end mounted on the eccentric rotor 62, and a driving vane 64. The other end of the connecting shaft 63 is connected with the middle part of the driving wing 64, and both ends of the driving wing 64 are respectively connected with the two piston bodies 52. In this structure, when the motor 61 is operated, the motor 61 drives the eccentric rotor 62 to rotate, and the eccentric rotor 62 drives the both ends of the driving wing pieces 64 to reciprocate up and down alternately through the connecting shaft 63, thereby achieving the up-down alternate reciprocating motion of the two piston bodies 52. Specifically, when the piston body 52 moves downward, the air inlet umbrella valve 42 of the check valve assembly 4 is opened, the air outlet umbrella valve 43 is closed, and at this time, the check valve assembly 4 sucks air through the first through hole 50, and when the piston body 52 moves upward, the air inlet umbrella valve 42 of the check valve assembly 4 is closed, and the air outlet umbrella valve 43 is opened, and at this time, the check valve assembly 4 compresses air into the mechanical double-way valve through the air inlet hole 21.
In an embodiment, referring to fig. 14 and 16, as a specific implementation manner of the mechanical two-way valve provided in the first embodiment of the present application, the air pump 7 further includes a motor support seat 65 for supporting the piston support seat 51, the motor support seat 65 is provided with a second through hole 650 communicated with the first through hole 50, the motor support seat 65 is connected with the motor 61, and the eccentric rotor 62, the connecting shaft 63 and the transmission wing 64 are disposed in a space enclosed by the piston support seat 51 and the motor support seat 65. The motor support base 65 is connected and fixed with the motor 61 through a screw 66. With this structure, the motor support base 65 supports the piston support base 51, so that the stability of the movement of the piston assembly 5 can be improved. The eccentric rotor 62, the connecting shaft 63 and the transmission wing 64 are arranged in the space enclosed by the piston supporting seat 51 and the motor supporting seat 65, so that the working stability of the driving assembly 6 can be improved, and the volume can be reduced.
Referring to fig. 17 to 19, an electronic sphygmomanometer is also provided in accordance with an embodiment of the present application. The electronic sphygmomanometer comprises the mechanical two-way valve described in the first embodiment, and the electronic sphygmomanometer integrates the exhaust hole 11 and the first vent hole 12 on the housing to form the first shell 1, so that the volume of the electronic sphygmomanometer can be reduced, and the structural design is simplified.
Referring to fig. 19, the electronic blood pressure meter includes the air pump 7, the air pressure sensor 8 communicating with the air outlet 71 of the air pump 7, and the cuff 9, the cuff 9 communicating with the air outlet 71 of the air pump 7 and the air pressure sensor 8, respectively. The air pump 7 has an air outlet 71 and an air outlet 72, the air outlet 71 is a first air vent 12 in the mechanical double-way valve, and the air outlet 72 is an air vent 11 in the mechanical double-way valve. When the electronic sphygmomanometer is used for measurement, the air pump 7 works, the elastic piece 3 is pressed and deformed to seal the exhaust hole 11 (namely the exhaust hole 72 of the air pump 7), and the first vent hole 12 is communicated with the air inlet hole 21. The air pump 7 supplies air to the air inlet hole 21 of the mechanical double-way valve through the driving component 6, the piston component 5 and the one-way valve component 4, and the air fills the cuff 9 through the air inlet hole 21 and the first vent hole 12 to realize air supply. When the air pump 7 stops supplying air, the elastic piece 3 is restored under the action of elasticity, at this moment, the elastic piece 3 plugs the air inlet hole 21, the air outlet hole 11 is communicated with the first air outlet hole 12, the air in the cuff 9 can be discharged through the first air outlet hole 12 and the air outlet hole 11, mechanical air discharge is realized, a traditional solenoid type electromagnetic valve structure is not required, electric energy consumption is low, and the volume is small.
Embodiment two:
Referring to fig. 7 and 8, a mechanical two-way valve according to a second embodiment of the present application will be described. The mechanical two-way valve provided in the second embodiment of the present application is different from the mechanical two-way valve provided in the first embodiment in that the first housing 1 is further provided with a third air vent 13 that is communicated with the first air vent 12. In this configuration, the third vent hole 13 is connected to the air pressure sensor 8 and is used for measuring the blood pressure value.
Other structures of the mechanical two-way valve provided in the second embodiment of the present application are the same as the corresponding structures of the mechanical two-way valve provided in the first embodiment, and are not described in detail herein.
Embodiment III:
Referring to fig. 11 and 12, a mechanical two-way valve according to a third embodiment of the present application will now be described. The mechanical two-way valve provided by the third embodiment of the present application is different from the mechanical two-way valve provided by the second embodiment in that the elastic member 3 is in a sheet shape, the elastic member 3 is provided with a fourth air hole 31, a boss 24 is arranged on the second housing 2 opposite to the fourth air hole 31, the boss 24 is used for separating from the fourth air hole 31 when the elastic member 3 is deformed by external pressure so as to realize that the elastic member 3 seals the air hole 11, the first air hole 12 is communicated with the air hole 21, and is used for sealing the fourth air hole 31 when the elastic member 3 returns to the original state under the elastic force so as to realize that the elastic member 3 seals the air hole 21, and the first air hole 12 is communicated with the air hole 11. In this structure, the elastic member 3 divides the accommodating chamber into a first chamber and a second chamber, the exhaust hole 11 and the first vent hole 12 are respectively communicated with the first chamber, and the air inlet hole 21 is communicated with the second chamber. In the initial position state, the elastic piece 3 is not deformed, at this time, the fourth air hole 31 is tightly attached to the boss 24, the first chamber and the second chamber are in a disconnected state, the air inlet 21 is plugged by the elastic piece 3, the air outlet 11 is communicated with the first air hole 12, and the mechanical double-way valve can be used for exhausting. When the air is supplied to the accommodating cavity through the air inlet hole 21, and the air pressure in the second cavity is larger than the air pressure in the first cavity, the elastic piece 3 deforms towards the direction of the air outlet hole 11, the air outlet hole 11 is plugged by the elastic piece 3, at the moment, the fourth air hole 31 is separated from the boss 24, the fourth air hole 31 is communicated with the first cavity and the second cavity, so that the air inlet hole 21 is communicated with the first air hole 12, and the air supply of the mechanical double-way valve can be realized. In addition, the fourth air hole 31 can be gradually opened along with the increase of pressure, so that the ventilation efficiency is improved.
In an embodiment, referring to fig. 9 and 11, as a specific implementation manner of the mechanical two-way valve provided in the third embodiment of the present application, a first groove 14 is formed on the first housing 1 opposite to the boss 24, the first groove 14 is spaced from the boss 24, and a fourth air hole 31 is disposed between the boss 24 and the first groove 14. With this structure, the first groove 14 can provide enough space for the deformation of the elastic member 3, so as to facilitate the separation of the fourth air hole 31 from the boss 24, and realize the communication between the first chamber and the second chamber.
In an embodiment, referring to fig. 9 and 11, as a specific implementation manner of the mechanical two-way valve provided in the third embodiment of the present application, a second groove 15 is formed on a side surface of the first housing 1 facing the second housing 2, a ring 16 for abutting against the elastic member 3 to seal the exhaust hole 11 is installed in the second groove 15, and one end of the exhaust hole 11 is disposed at a bottom surface of the second groove 15. With this structure, when the elastic member 3 is deformed by force, the elastic member 3 can abut against the ring 16, so that the sealing performance of the elastic member 3 against the exhaust hole 11 can be improved. Wherein, the elastic member 3 may be a hard film sheet, and the ring 16 may be a plastic member having elasticity.
Other structures of the mechanical two-way valve provided in the third embodiment of the present application are the same as the corresponding structures of the mechanical two-way valve provided in the second embodiment, and are not described in detail herein.
The above description is illustrative of the various embodiments of the application and is not intended to be limiting, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010686027.6A CN111853279B (en) | 2020-07-16 | 2020-07-16 | Mechanical two-way valve, air pump and electronic blood pressure monitor |
| PCT/CN2020/122829 WO2022011874A1 (en) | 2020-07-16 | 2020-10-22 | Mechanical two-way valve, air pump, and electronic sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010686027.6A CN111853279B (en) | 2020-07-16 | 2020-07-16 | Mechanical two-way valve, air pump and electronic blood pressure monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111853279A CN111853279A (en) | 2020-10-30 |
| CN111853279B true CN111853279B (en) | 2025-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010686027.6A Active CN111853279B (en) | 2020-07-16 | 2020-07-16 | Mechanical two-way valve, air pump and electronic blood pressure monitor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111853279B (en) |
| WO (1) | WO2022011874A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022234778A1 (en) * | 2021-05-06 | 2022-11-10 | 株式会社村田製作所 | Valve, fluid control device, pressurizing device, and sphygmomanometer |
| CN113270685A (en) * | 2021-06-02 | 2021-08-17 | 江苏泛亚微透科技股份有限公司 | Balance moisture absorption explosion-proof valve for ternary lithium power battery pack |
Citations (2)
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|---|---|---|---|---|
| CN103767695A (en) * | 2014-01-21 | 2014-05-07 | 深圳市金亿帝科技有限公司 | Vent valve, integrated air pump and electronic sphygmomanometer |
| CN212297732U (en) * | 2020-07-16 | 2021-01-05 | 深圳市捷美瑞科技有限公司 | Mechanical two-way valve, air pump and electronic sphygmomanometer |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19532037C1 (en) * | 1995-08-31 | 1996-12-19 | Eberhard Mayer | Control of pump-compressor with separately controlled suction and pressure valves |
| US20080194976A1 (en) * | 2007-02-12 | 2008-08-14 | Welch Allyn, Inc. | Diaphragm assembly for blood pressure measuring apparatus |
| CN104905778B (en) * | 2014-03-12 | 2018-08-10 | 科际器材工业股份有限公司 | Bidirectional exhaust device and bidirectional air outlet structure thereof |
| KR20160038265A (en) * | 2014-09-30 | 2016-04-07 | 한국전기연구원 | Self blast type gas circuit breaker with auto-adjust exhausting hole |
| CN107072563B (en) * | 2014-10-21 | 2019-05-17 | 株式会社村田制作所 | Valves, Fluid Controls, and Sphygmomanometers |
| CN104825145A (en) * | 2015-04-30 | 2015-08-12 | 深圳金亿帝医疗设备股份有限公司 | Air valve, integrated air pump and wearable electronic sphygmomanometer |
| CN206257023U (en) * | 2016-11-15 | 2017-06-16 | 厦门科际精密器材有限公司 | Air pump |
| CN108186001B (en) * | 2017-12-27 | 2025-02-18 | 深圳金亿帝医疗设备股份有限公司 | Air pumps, combined air pumps, electronic blood pressure monitors and medical devices |
| CN109667747A (en) * | 2018-10-19 | 2019-04-23 | 重庆触阔科技有限公司 | A kind of passive valve type sphygmomanometer of microminiature fills exhaust apparatus |
| CN209908697U (en) * | 2019-01-31 | 2020-01-07 | 深圳市捷美瑞科技有限公司 | Inflator pump and sphygmomanometer |
-
2020
- 2020-07-16 CN CN202010686027.6A patent/CN111853279B/en active Active
- 2020-10-22 WO PCT/CN2020/122829 patent/WO2022011874A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767695A (en) * | 2014-01-21 | 2014-05-07 | 深圳市金亿帝科技有限公司 | Vent valve, integrated air pump and electronic sphygmomanometer |
| CN212297732U (en) * | 2020-07-16 | 2021-01-05 | 深圳市捷美瑞科技有限公司 | Mechanical two-way valve, air pump and electronic sphygmomanometer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022011874A1 (en) | 2022-01-20 |
| CN111853279A (en) | 2020-10-30 |
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