CN206792773U - A kind of lung ventilator and its pressure-regulating valve - Google Patents
A kind of lung ventilator and its pressure-regulating valve Download PDFInfo
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- CN206792773U CN206792773U CN201720066715.6U CN201720066715U CN206792773U CN 206792773 U CN206792773 U CN 206792773U CN 201720066715 U CN201720066715 U CN 201720066715U CN 206792773 U CN206792773 U CN 206792773U
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- leakage hole
- sliding block
- regulating valve
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Abstract
The utility model discloses a kind of pressure-regulating valve of lung ventilator, housing including cylindricality, housing is hollow along its axis and to form one end be air inlet, the other end is the valve rod air flue of gas outlet, it is hollow between the inwall and outer wall of housing, also include the fixedly sleeved permanent magnet ring on housing, the electromagnetism sliding block for being enclosed on inwall and being slidably connected with inwall, and the fixed magnet coil being wrapped on electromagnetism sliding block, the first leakage hole connected with valve rod air flue is provided with inwall, the second leakage hole is provided with electromagnetism sliding block and on the outside of the first leakage hole, first leakage hole and the second leakage hole, which connect, to be formed size and moves up discharge orifice that is dynamic and changing in inwall with electromagnetism sliding block, pressure relief opening is provided with outer wall；By the size of the mobile regulation discharge orifice of electromagnetism sliding block, pressure regulation is convenient, and eliminates influence of the pressure release air-flow to adjustment sheet so that pressure degree of regulation is higher, and output pressure stability is higher.The invention also discloses a kind of lung ventilator for including above-mentioned pressure-regulating valve.
Description
Technical field
Technical field of medical instruments is the utility model is related to, more particularly to a kind of pressure-regulating valve of lung ventilator.In addition,
The utility model further relates to a kind of lung ventilator for including above-mentioned pressure-regulating valve.
Background technology
In current clinical medicine, lung ventilator is a kind of Medical Devices using artificial substituting expiratory positive airway pressure function, its energy
Enough play a part of preventing and treating respiratory failure, reduce complication, redemption and extend patients ' lives, therefore it is in modern medicine
Occupy highly important position in field.
Pressure-regulating valve is the important component for changing the pressure value of lung ventilator output gas flow, can by pressure-regulating valve
To improve patient breaths' amount and the oxygen content of blood, improve patient respiratory ability.The electromagnetic valve structure of current market is complicated, price compared with
Height, and the mode that the electromagnet of generally use independence combines with relief valve carrys out regulation valve body relief hole sectional area, it have ignored valve
Nonlinear influence of the dynamic pressure and air stream turbulence of interior air-flow on adjustment sheet pressure, causes magnetic valve adjustment sheet with airflow fluctuation
Acutely, and then cause the fluctuation of magnetic valve output pressure larger, air-flow exports the unstable comfort level that can influence patient, restriction breathing
The performance of machine.
Therefore how to make that pressure-regulating valve is simple in construction, higher output pressure stability is that those skilled in the art need at present
Technical problems to be solved.
Utility model content
The purpose of this utility model is to provide a kind of pressure-regulating valve of lung ventilator, makes that its is simple in construction, output pressure is steady
It is qualitative higher.Another object of the present utility model is to provide a kind of lung ventilator for including above-mentioned pressure-regulating valve.
In order to solve the above technical problems, the utility model provides a kind of pressure-regulating valve of lung ventilator, include the shell of cylindricality
Body, the housing is hollow along its axis and forms the valve rod air flue that one end is air inlet, the other end is gas outlet, the housing
It is hollow between inwall and outer wall, in addition to fixedly sleeved permanent magnet ring on the housing, be enclosed on the inwall and with institute
The electromagnetism sliding block that inwall is slidably connected, and the fixed magnet coil being wrapped on the electromagnetism sliding block are stated, is opened on the inwall
There is the first leakage hole connected with the valve rod air flue, is provided with the electromagnetism sliding block and on the outside of first leakage hole
Two leakage holes, first leakage hole and second leakage hole connect to form size with the electromagnetism sliding block on the inwall
The change of position and the discharge orifice changed, the pressure relief opening for the discharge orifice to be in communication with the outside is provided with the outer wall.
Preferably, first leakage hole is along the length direction extension of the inwall and length of its width along the inwall
The elongate holes that direction gradually increases or reduced are spent, second leakage hole is the strip along the circumferentially extending of the electromagnetism sliding block
Shape hole.
Preferably, first leakage hole is specially triangle.
Preferably, the permanent magnet ring is fixed on one end of the housing, and the magnet coil is fixed and is wrapped in the electricity
Magnetic slider is close to one end of the permanent magnet ring.
Preferably, the permanent magnet ring is located between the inwall and the outer wall and is fixedly connected with the outer wall.
Preferably, in addition to for measuring the pressure sensor of gas pressure at the gas outlet, being pressed for exporting setting
The controller of force signal, for the setting pressure signal of the feedback pressure according to the pressure sensor and the controller export
The PID circuits of electric signal, and be connected with the magnet coil and the electromagnetism sliding position is changed according to the electric signal
Drive circuit.
The utility model also provides a kind of lung ventilator, including pressure-regulating valve, and the pressure-regulating valve is specially above-mentioned
Pressure-regulating valve described in meaning one.
The pressure-regulating valve of lung ventilator provided by the utility model, includes the housing of cylindricality, and housing is hollow simultaneously along its axis
Formation one end is air inlet, the valve rod air flue that the other end is gas outlet, hollow between the inwall and outer wall of housing, in addition to is fixed
The permanent magnet ring being socketed on housing, the electromagnetism sliding block for being enclosed on inwall and being slidably connected with inwall, and fixation are wrapped in electricity
Magnet coil on magnetic slider, is provided with the first leakage hole connected with valve rod air flue on inwall, on electromagnetism sliding block and in the first leakage
It is provided with the second leakage hole on the outside of stomata, the first leakage hole and the second leakage hole connect to form size with electromagnetism sliding block on inwall
The change of position and the discharge orifice changed, the pressure relief opening for discharge orifice to be in communication with the outside is provided with outer wall.
When the size of current led in magnet coil changes, because electromagnetic induction acts on, and permanent magnet ring is fixed,
Then magnet coil can drive electromagnetism sliding block to be slided along inner walls, and then change the first leakage hole and the second leakage hole overlapping area
Size, that is, change discharge orifice size, so as to adjust the flow of the output gas at gas outlet, change the gas pressure of gas outlet
Power；In summary, pressure-regulating valve provided by the utility model, by the size of the mobile regulation discharge orifice of electromagnetism sliding block,
Electromagnetism sliding block is simple in construction equivalent to adjustment sheet, and pressure regulation is convenient, and because the regulation direction of pressure release airflow direction and adjustment sheet is hung down
Directly, influence of the pressure release air-flow to adjustment sheet is eliminated so that pressure degree of regulation is higher, and output pressure stability is higher.
Lung ventilator provided by the utility model includes above-mentioned pressure-regulating valve, because above-mentioned pressure-regulating valve has above-mentioned skill
Art effect, above-mentioned lung ventilator should also have same technique effect, no longer be discussed in detail herein.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of pressure-regulating valve provided by the utility model；
Fig. 2 is a kind of control principle drawing of embodiment of pressure-regulating valve provided by the utility model.
Embodiment
Core of the present utility model is to provide a kind of pressure-regulating valve of lung ventilator, makes that its is simple in construction, output pressure is steady
It is qualitative higher.Another core of the present utility model is to provide a kind of lung ventilator for including above-mentioned pressure-regulating valve.
In order that those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
Fig. 1 is refer to, Fig. 1 is that a kind of structure of embodiment of pressure-regulating valve provided by the utility model is shown
It is intended to.
The pressure-regulating valve for the lung ventilator that the utility model embodiment provides, including housing 1, permanent magnet ring 5, electricity
Magnetic slider 6 and the magnet coil 7 being wrapped on electromagnetism sliding block 6, wherein, housing 1 is cylindricality, and housing 1 is along the hollow shape of its axis
Into valve rod air flue 4, one end of valve rod air flue 4 is air inlet 2, and the other end is gas outlet 3, and gas is realized by valve rod air flue 4
Output.
Because housing 1 is axially hollow along its, then housing 1 has inner and outer wall, wherein, the inwall of housing 1 and outer wall it
Between it is hollow, permanent magnet ring 5 is fixedly sleeved on housing 1, and electromagnetism sliding block 6, which is enclosed on valve rod air flue 4, to be enclosed on the inwall of housing 1,
And electromagnetism sliding block 6 is slidably connected with inwall, magnet coil 7 is fixed and is wrapped on electromagnetism sliding block 6, when what is led in magnet coil 7
When size of current changes, because electromagnetic induction acts on, and permanent magnet ring 5 is fixed, then magnet coil 7 can drive electromagnetism sliding block
6 slide along the inwall of housing 1.
In addition, be provided with the first leakage hole 8 connected with valve rod air flue 4 on the inwall of housing 1, on electromagnetism sliding block 6 and
The second leakage hole 9 is provided with the outside of the first leakage hole 8, the first leakage hole 8 connects to form discharge orifice with the second leakage hole 9, and
The size of discharge orifice changes with electromagnetism sliding block 6 in the upper change put of inwall, be also provided with the outer wall for by discharge orifice with
The pressure relief opening 10 of external world's connection；As magnet coil 7 drives the horizontally slipping on the inwall of housing 1 of electromagnetism sliding block 6, change first
The size of the overlapping area of 8 and second leakage hole of leakage hole 9, that is, change the size of discharge orifice, exported so as to adjust at gas outlet 3
The flow of gas, change the gas pressure of gas outlet 3.
In summary, pressure-regulating valve provided by the utility model, the mobile regulation discharge orifice of electromagnetism sliding block 6 is passed through
Size, electromagnetism sliding block 6 is simple in construction equivalent to adjustment sheet, and pressure regulation is convenient, and due to the regulation of pressure release airflow direction and adjustment sheet
Direction is vertical, eliminates influence of the pressure release air-flow to adjustment sheet so that pressure degree of regulation is higher, output pressure stability compared with
It is high.
Wherein, housing 1 is preferably cylindrical, and structure is full symmetric, is easy to processing and fabricating, and can ensure the knot of housing 1
Structure intensity.
The pressure-regulating valve for the lung ventilator that the utility model embodiment provides, to ensure being sized to for discharge orifice
Change with the horizontally slipping on the inwall of housing 1 of electromagnetism sliding block 6, the first leakage hole 8 is specifically as follows along the length side of inwall
To the elongate holes of extension, and length direction of the width of the first leakage hole 8 along inwall gradually increases or reduced, the second leakage hole
9 be the elongate holes along the circumferentially extending of electromagnetism sliding block 6；So, the first leakage hole 8 overlapped with the second leakage hole 9 to be formed it is trapezoidal
Discharge orifice, when electromagnetism sliding block 6 on the inwall of housing 1 when horizontally slipping, the first leakage hole 8 overlaps with the second leakage hole 9
Area gradually can increase or reduce, i.e., the size of discharge orifice can gradually change, so as to adjust the stream from output gas at gas outlet 3
Amount, change the gas pressure of gas outlet 3.
Certainly, the shape of the first leakage hole 8 and the second leakage hole 9 can phase double replacement, i.e. the first leakage hole 8 can be edge
The elongate holes of the circumferentially extending of the inwall of housing 1, the second leakage hole 9 are along the length direction extension of electromagnetism sliding block 6 and its width
The elongate holes for gradually increasing or reducing along the length direction of electromagnetism sliding block 6, also within the scope of protection of the utility model.
Specifically, the first leakage hole 8 can be triangle, and such leakage hole 9 of first leakage hole 8 and second can overlap shape
Discharge orifice in echelon, be advantageous to the calculating and regulation of air leakage amount, certainly, the first leakage hole 8 can also be height along housing 1
The extension of wall length direction it is trapezoidal etc., also within the scope of protection of the utility model.
On the basis of above-mentioned each embodiment, the pressure-regulating valve of the utility model embodiment offer,
Permanent magnet ring 5 is preferably fixed to one end of housing 1, and magnet coil 7 is fixed and is wrapped in electromagnetism sliding block 6 close to the one of permanent magnet ring 5
End, when ensureing that the electric current in magnet coil 7 changes electromagnetism sliding block 6 can be driven to slide.
Specifically, permanent magnet ring 5 can be specifically located between the inwall and outer wall of housing 1, i.e., by built in permanent magnet ring 5,
Pressure-regulating valve structure can be made simpler, avoid influence of the components aging to pressure-regulating valve precision；In addition, permanent magnet ring 5
It can be specifically fixedly connected with outer wall, and power supply magnetic slider 6 is left between permanent magnet ring 5 and the inwall of housing 1 and is slided along the inwall of housing 1
Dynamic gap, ensure that the sliding distance of electromagnetism sliding block 6 maximizes.Certainly, the specific set location of permanent magnet ring 5 is not limited to
This, as long as ensureing that magnet coil 7 can drive 6 pieces of electromagnetism sliding block to be horizontally slipped along the inwall of housing 1, in guarantor of the present utility model
Within the scope of shield.
Fig. 2 is refer to, Fig. 2 is that a kind of control of embodiment of pressure-regulating valve provided by the utility model is former
Reason figure.
On the basis of above-mentioned each embodiment, to realize the Intelligent adjustment of output pressure, the utility model is specific
The pressure-regulating valve that embodiment provides, pressure sensor 11, controller 12 and pressure sensor 11 and control can also be included
PID circuits 13 that device 12 is all connected with and the drive circuit 14 being connected with magnet coil 7；Wherein, pressure sensor 11 is used to survey
The gas pressure at gas port 3 is measured, controller 12 is used to export setting pressure signal, i.e., required pressure is set by controller 12
Power, PID circuits 13 receive the feedback pressure of pressure sensor 11 and the setting pressure signal of controller 12, and both are compared into shape
Into electric signal output, drive circuit 14 is connected with PID circuits 13, and drive circuit 14 receives the electric signal of the output of PID circuits 13, and
The alive size of institute in magnet coil 7 is adjusted according to the electric signal, and then slides electromagnetism sliding block 6, changes electromagnetism sliding block 6
Position, change the gas pressure of gas outlet 3, form closed loop feedback regulation, adjusting pressure, more steady and precision is higher.
Except above-mentioned pressure-regulating valve, specific embodiment of the present utility model also provides a kind of including the regulation of above-mentioned pressure
The lung ventilator of valve, the structure of other each several parts of the lung ventilator refer to prior art, repeat no more herein.
Lung ventilator provided by the utility model and its pressure-regulating valve are described in detail above.It is used herein
Specific case is set forth to principle of the present utility model and embodiment, and the explanation of above example is only intended to help
Understand method and its core concept of the present utility model.It should be pointed out that for those skilled in the art,
On the premise of not departing from the utility model principle, some improvement and modification can also be carried out to the utility model, these improve and
Modification is also fallen into the protection domain of the utility model claims.
Claims (7)
1. a kind of pressure-regulating valve of lung ventilator, it is characterised in that the housing including cylindricality, the housing are hollow simultaneously along its axis
Formation one end is air inlet, the valve rod air flue that the other end is gas outlet, hollow between the inwall and outer wall of the housing, in addition to
Fixedly sleeved permanent magnet ring on the housing, the electromagnetism sliding block for being enclosed on the inwall and being slidably connected with the inwall,
And the magnet coil being wrapped on the electromagnetism sliding block is fixed, it is provided with first connected with the valve rod air flue on the inwall
Leakage hole, is provided with the second leakage hole on the electromagnetism sliding block and on the outside of first leakage hole, first leakage hole and
Second leakage hole connect to be formed size with the electromagnetism sliding block change of position and the discharge orifice that changes on the inwall,
The pressure relief opening for the discharge orifice to be in communication with the outside is provided with the outer wall.
2. pressure-regulating valve according to claim 1, it is characterised in that first leakage hole is the length along the inwall
Spend direction extension and length direction of its width along the inwall gradually increases or the elongate holes of reduction, second leakage hole
For along the elongate holes of the circumferentially extending of the electromagnetism sliding block.
3. pressure-regulating valve according to claim 2, it is characterised in that first leakage hole is specially triangle.
4. pressure-regulating valve according to claim 1, it is characterised in that the permanent magnet ring is fixed on the one of the housing
End, the magnet coil are fixed and are wrapped in the electromagnetism sliding block close to one end of the permanent magnet ring.
5. pressure-regulating valve according to claim 4, it is characterised in that the permanent magnet ring be located at the inwall with it is described
It is fixedly connected between outer wall and with the outer wall.
6. according to the pressure-regulating valve described in claim 1 to 5 any one, it is characterised in that also include described for measuring
The pressure sensor of gas pressure at gas outlet, the controller for exporting setting pressure signal, for being passed according to the pressure
The PID circuits of the setting pressure signal output electric signal of the feedback pressure of sensor and the controller, and with the electromagnetic wire
Circle connection and the drive circuit for changing the electromagnetism sliding position according to the electric signal.
7. a kind of lung ventilator, including pressure-regulating valve, it is characterised in that the pressure-regulating valve is specially claim 1 to 6 times
Pressure-regulating valve described in meaning one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066715.6U CN206792773U (en) | 2017-01-19 | 2017-01-19 | A kind of lung ventilator and its pressure-regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066715.6U CN206792773U (en) | 2017-01-19 | 2017-01-19 | A kind of lung ventilator and its pressure-regulating valve |
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| Publication Number | Publication Date |
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| CN206792773U true CN206792773U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720066715.6U Active CN206792773U (en) | 2017-01-19 | 2017-01-19 | A kind of lung ventilator and its pressure-regulating valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106620980A (en) * | 2017-01-19 | 2017-05-10 | 湖南明康中锦医疗科技发展有限公司 | Breathing machine and pressure regulation valve thereof |
-
2017
- 2017-01-19 CN CN201720066715.6U patent/CN206792773U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106620980A (en) * | 2017-01-19 | 2017-05-10 | 湖南明康中锦医疗科技发展有限公司 | Breathing machine and pressure regulation valve thereof |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 410205 Room 101, 1st floor, north of superstar entrepreneurship base, No. 8 Lujing Road, high tech Development Zone, Changsha, Hunan Patentee after: Hunan Mingkang Zhongjin Medical Technology Co.,Ltd. Address before: 410000 101, North 1st floor, giant star entrepreneurship base, No. 8 Lujing Road, high tech Development Zone, Changsha City, Hunan Province Patentee before: HUNAN MICOME ZHONGJIN MEDICAL SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |