CN209499722U - Electronic sphygmomanometer average rate valve - Google Patents
Electronic sphygmomanometer average rate valve Download PDFInfo
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- CN209499722U CN209499722U CN201822136705.2U CN201822136705U CN209499722U CN 209499722 U CN209499722 U CN 209499722U CN 201822136705 U CN201822136705 U CN 201822136705U CN 209499722 U CN209499722 U CN 209499722U
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- valve
- valve head
- average rate
- plunger
- electronic sphygmomanometer
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Abstract
The utility model provides a kind of electronic sphygmomanometer average rate valve, it includes valve head and valve seat, and valve head is connected with sphygmomanometer gas circuit；Valve head is equipped with inlet channel, and it is communicated by metering hole with valve seat, valve seat is hollow structure open at one end, embedded plunger, valve head inner cavity is formed close to metering hole side, it is bleed passage in the middle part of plunger, upper surface is equipped with the throttling channel communicated with bleed passage, and throttling channel and bleed passage entrance top cover flexible diaphragm piece.The utility model by one group of thin silicon rubber (or) plastic film chip is assembled into valve head inner cavity; as the barrier between valve and fluid; keep downstream pressure in a certain range; in the continually changing situation of inlet pressure; keep outlet pressure in the range of setting; protection electronic sphygmomanometer thereafter, valve head pressure release speed is fastly and unstable when solving the problems, such as high pressure with this, realizes average rate pressure release.
Description
Technical field
The utility model relates to average rate valve technology field, especially a kind of average rate valve for electronic sphygmomanometer.
Background technique
Bleeder valve is mostly used in the electronic sphygmomanometer being currently known, bleeder valve is divided into four kinds: the first is adjusting screw rod formula,
It is set to compress main spring and drive thin film, spring cushion block and mandril and open valve, if valve pad, valve damage, Rong Yi
Cause outlet pressure voluntarily to rise and is more than certain License Value；Second of use hemisphere face connects, and keeps the two complete by tightening nut
It is complete to coincide, therefore, need to keep when in use two it is hemispherical bright and clean, to ensure good airtight effect, installation must gas
Dust is blown down, then the permanent compressive deformation of element；The third is screw adjustment type, flow is adjusted using screw, and for a long time
It often loosens or deforms using the air valve of adjustment type, to cause error that must thus factory be sent to repair.4th kind of bleeder valve master
Wanting problem is through-hole aperture by affected by high, causes pressure release very fast, it is showed quite not when low section in the control of through-hole aperture pressure
Mistake, but average rate is not sufficiently stable, and is influenced by high-low pressure, and average rate cannot be achieved.And the static pressure indicating value of electronic sphygmomanometer needs
Higher stability generally requires to survey the measured value of 10000 times or more cyclic tests in the test of type evaluation project
Amount assessment, it is fastly and unstable come valve head pressure release speed when solving the problems, such as high pressure that therefore, it is necessary to a kind of stable average rate valves, simultaneously
It can be realized average rate pressure release.
Utility model content
For the utility model purport in solving the above problems, the utility model provides a kind of average rate valve, valve head when solving high pressure
Pressure release speed with unstable problem, realizes average rate pressure release fastly.
The utility model provides a kind of electronic sphygmomanometer average rate valve, it is characterised in that: it includes valve head and valve seat, valve head with
Sphygmomanometer gas circuit is connected；Valve head is equipped with inlet channel, and communicates by metering hole with valve seat, and valve seat is open at one end hollow
Structure embeds plunger, forms valve head inner cavity close to metering hole side, is bleed passage in the middle part of plunger, and upper surface is equipped with and loses heart
The throttling channel that channel communicates, throttling channel and bleed passage entrance top cover flexible diaphragm piece.
In above structure, the flexible diaphragm piece and plunger are circle, and flexible diaphragm piece diameter is less than diameter of plunger, column
The edge of plug insertion valve head inner cavity one end is arc structure.
In above structure, the flexible diaphragm piece uses ethylene propylene diene rubber, hardness: 40-60 degree, thickness: 0.3-0.8
Millimeter.
In above structure, the throttling channel cross section is rectangle or flat U-shaped, and throttling channel sectional area is 0.03-0.09 squares
Millimeter.
In above structure, the sectional area ratio of the metering hole and throttling channel is 2:1.
The utility model by one group of thin silicon rubber (or) plastic film chip is assembled into valve head inner cavity, as valve and fluid it
Between barrier, average rate valve throttle when be that will bear against valve head inner cavity throttling channel by silicon rubber film to reach, make downstream pressure
It keeps in a certain range, in the continually changing situation of inlet pressure, keeps outlet pressure in the range of setting, protect it
Electronic sphygmomanometer afterwards, valve head pressure release speed is fastly and unstable when solving the problems, such as high pressure with this, realizes average rate pressure release.
Detailed description of the invention
Fig. 1 is that face structure sectional view is indulged in the inside of the utility model；
Fig. 2 is the utility model sectional elevation downward from plunger upper surface；
Fig. 3 is the schematic perspective view of the utility model；
Fig. 4 is the switch plunger structure diagram of the utility model.
In figure: valve head inner cavity~1；Throttling channel~2；Flexible diaphragm piece~3；Metering hole~4；Valve head~5；Inlet channel~
6；Bleed passage~7；Plunger~8；Valve seat~9.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing.
Referring to Fig. 1, the utility model provides a kind of electronic sphygmomanometer average rate valve, including valve head 5 and valve seat 9, valve head 5 and blood
Pressure meter gas circuit is connected；Valve head is equipped with inlet channel 6, and communicates by metering hole with valve seat, and valve seat is open at one end hollow
Structure embeds plunger 8, forms valve head inner cavity 1 close to metering hole side, is bleed passage 7 in the middle part of plunger 8, upper surface be equipped with
The throttling channel 2 that bleed passage 7 communicates, throttling channel 2 and 7 entrance top of bleed passage cover flexible diaphragm piece 3, it is described it is flexible every
Diaphragm 3 is movably set in valve head inner cavity 1 and is pressed against each other with throttling channel 2.The flexible diaphragm piece 3 is silicon rubber thin diaphragm or modeling
Expect diaphragm.It is assembled into valve head inner cavity 1 by flexible diaphragm piece 3, as the barrier between valve and fluid, passes through flexible diaphragm piece
3 are pressed in valve head inner cavity 1 and are pressed against each other with throttling channel 2 to achieve the purpose that throttling.
Referring to fig. 2, the flexible diaphragm piece 3 and plunger 8 are circle, and 3 diameter of flexible diaphragm piece is less than 8 diameter of plunger,
When assembling, the flexible diaphragm piece 3 through valve seat 91 bottom of body cavity enter, and back-plunger 8 again through 1 bottom of body cavity into
Enter and is pressed against each other with flexible diaphragm piece 3.The edge that plunger 8 is embedded in 1 one end of valve head inner cavity is arc structure, reduces shape when fluid passes through
At vortex, keep the fluid in average rate valve more stable.
Specifically, which further includes metering hole 4, and the metering hole 4 is set to the inlet channel end of valve head inner cavity 1.
The flexible diaphragm piece uses ethylene propylene diene rubber, hardness: 40-60 degree, thickness: 0.3-0.8 millimeters.The throttling channel is transversal
Face is rectangle or flat U-shaped, and throttling channel sectional area is 0.03-0.09 square millimeters.The sectional area of the metering hole and throttling channel ratio
For 2:1.Since the flow of this average rate valve is smaller, controllable pressure range are as follows: in 10mmHg-600mmHgm；Adjustable metering hole,
The ratio of the thickness and hardness of throttling channel and diaphragm realizes different linear of flow, with 3mmHg/s-9mmHg/s per second
Not equal average rate pressure release；Its active force is just more much smaller than common valve, effectively to be throttled in valve head inner cavity, because
And this valve is useful in the one-way flow of pressure difference.
Referring to Fig. 1, in the present embodiment, which further includes valve head 5, and the valve head inner cavity 1 is set in valve head 5, institute
Stating valve head 5 includes inlet channel 6, bleed passage 7 and plunger 8, and the inlet channel 6 is set to the upper end of valve head 5, described
Bleed passage 7 is set to the lower end of valve head 5.Referring to Fig. 3,5 bottom of valve head is provided with the valve seat 9 of cylindrical, hollow, institute
Plunger 8 to be stated to be set in the valve seat 9, the inlet channel 6 refers to penetrating through from 5 upper end of valve head to the through-hole of metering hole 4,
The metering hole 4 is penetrated through from 6 lower end of inlet channel to the top of valve seat 9, and in the present embodiment, the bleed passage 7 is set to column
Beyond the Great Wall, it can be understood as be the through-hole being set on plunger 8, be connected with the outside world from the perforation of valve head inner cavity 1 to valve head bottom end.
Form valve head inner cavity 1 between the plunger 8 and the top of valve seat 9, in the present embodiment, plunger 8 connect shape with the side walls of valve seat 9
At semi-enclosed valve head inner cavity 1, it is so-called it is semiclosed refer to valve head inner cavity only pass through metering hole, inlet channel, bleed passage with
External world's connection realizes waterproof sealing by high-precision cooperation between plunger and valve seat.
Referring to Fig. 3, the throttling channel 2 is set to the top surface of plunger 8, and the throttling channel 2 is the strip that cross section is arch
Valve seat, cross section refer to the vertical plane perpendicular to throttling channel strip extending direction, one end of the throttling channel 2 and bleed passage
Be connected, and the metering hole 4 is set between inlet channel and valve head inner cavity, the radial dimension of the metering hole 4 be less than into
The radial dimension in gas channel 6.So that being located at the throttling channel 2 of 3 lower section of flexible diaphragm piece and the current limliting for being located at 3 top of flexible diaphragm piece
Hole 4 is spaced in valve head inner cavity by flexible diaphragm piece 3, and the metering hole positioned at diaphragm is made to guarantee to be lower than in pressure
± 3 flow pressure of minimum discharge 6mmHg/s is played when 100mmHg or so, it is inside and outside at this time when being higher than 100mmHg pressure or more
Differential pressure action starts diaphragm and throttling channel fitting, throttling channel is squeezed by inside and outside differential pressure effect diaphragm, in the work of certain pressure difference
Under, throttling channel becomes smaller.With the size that pressure difference changes, the bigger throttling channel of pressure is smaller, and throttling channel flow is to be equal to or small at this time
Flow value within the positive and negative 3mmHg/s of restricted orifice flow value realizes the average rate of the linear flow value of high and low pressure difference with this,
And medium leakage will not be generated.
Whereby, the utility model by one group of thin silicon rubber (or) plastic film chip is assembled into valve head inner cavity, as valve and
Barrier between fluid, average rate valve are that will bear against valve head inner cavity throttling channel by silicon rubber film to reach when throttling, and make valve
Pressure is kept in a certain range afterwards, in the continually changing situation of inlet pressure, keeps outlet pressure in the range of setting,
Protection electronic sphygmomanometer thereafter, valve head pressure release speed is fastly and unstable when solving the problems, such as high pressure with this, realizes average rate pressure release.
Described above is only the preferable implementation column of the content of the present invention, and appeal specific implementation column are not practical new to this
The limitation of type content.In the technical idea scope of the content of the present invention, various modifications and modification, all this fields can occur
Those of ordinary skill retouching, modification or the equivalent replacement made as described above, belong to the content of the present invention and protected
The range of shield.In addition, these terms are merely for convenience of description although using some specific terms in this specification,
Any restrictions are not constituted to the utility model.
Claims (5)
1. a kind of electronic sphygmomanometer average rate valve, it is characterised in that: the average rate valve includes valve head and valve seat, valve head and sphygmomanometer gas
Road is connected；Valve head is equipped with inlet channel, and is communicated by metering hole with valve seat, and valve seat is hollow structure open at one end, interior
Embedding plunger forms valve head inner cavity close to metering hole side, is bleed passage in the middle part of plunger, upper surface is equipped with and communicates with bleed passage
Throttling channel, throttling channel and bleed passage entrance top cover flexible diaphragm piece.
2. electronic sphygmomanometer average rate valve as described in claim 1, it is characterised in that: the flexible diaphragm piece and plunger are circle
Shape, flexible diaphragm piece diameter are less than diameter of plunger, and the edge that plunger is embedded in valve head inner cavity one end is arc structure.
3. electronic sphygmomanometer average rate valve as claimed in claim 1 or 2, it is characterised in that: the flexible diaphragm piece uses ternary
EP rubbers, hardness: 40-60 degree, thickness: 0.3-0.8 millimeters.
4. electronic sphygmomanometer average rate valve as described in claim 1, it is characterised in that: the throttling channel cross section is rectangle or flat
U-shaped, throttling channel sectional area are 0.03-0.09 square millimeters.
5. electronic sphygmomanometer average rate valve as described in claim 1 or 4, it is characterised in that: section of the metering hole and throttling channel
Area ratio is 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136705.2U CN209499722U (en) | 2018-12-19 | 2018-12-19 | Electronic sphygmomanometer average rate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136705.2U CN209499722U (en) | 2018-12-19 | 2018-12-19 | Electronic sphygmomanometer average rate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209499722U true CN209499722U (en) | 2019-10-18 |
Family
ID=68195562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822136705.2U Active CN209499722U (en) | 2018-12-19 | 2018-12-19 | Electronic sphygmomanometer average rate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209499722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111329460A (en) * | 2018-12-19 | 2020-06-26 | 宋志平 | Uniform speed valve of electronic sphygmomanometer |
-
2018
- 2018-12-19 CN CN201822136705.2U patent/CN209499722U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111329460A (en) * | 2018-12-19 | 2020-06-26 | 宋志平 | Uniform speed valve of electronic sphygmomanometer |
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