CN202870631U - Respiratory flow adjusting device and respirator - Google Patents
Respiratory flow adjusting device and respirator Download PDFInfo
- Publication number
- CN202870631U CN202870631U CN 201220528463 CN201220528463U CN202870631U CN 202870631 U CN202870631 U CN 202870631U CN 201220528463 CN201220528463 CN 201220528463 CN 201220528463 U CN201220528463 U CN 201220528463U CN 202870631 U CN202870631 U CN 202870631U
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- spool
- gear
- control module
- main body
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Abstract
The utility model discloses a respiratory flow adjusting device and a respirator. The respiratory flow adjusting device comprises a device body, the device body includes a device body cavity, a valve core mounted inside the device body cavity, an air inlet, an air outlet, and an air flow channel connecting the air inlet and the air outlet, and the device also comprises a motor and a control unit, one end of the valve core, which is close to the air flow channel, is provided with a channel plug, when the channel plug is in different positions inside the air flow channel, the gaps between the channel plug and the air flow channel are different, the corresponding relation between flow of air that passes through the air flow channel and the rotation angle of a motor shaft of the motor is stored in the control unit, and the control unit drives and controls the valve core by controlling the rotation angle of the motor shaft, and further enables the channel plug to stay in a corresponding position inside the air flow channel. The respiratory flow adjusting device can realize automatic and accurate control of air flow, and can effectively prevent the motor shaft from excessively rotating and damaging a rotational potentiometer.
Description
Technical field
The utility model relates to medical instruments field, relates in particular to a kind of respiratory flow regulating device and lung ventilator.
Background technology
The automatic control degree of existing respiratory flow regulating device is lower, brings greater inconvenience for the field first aid operation; The precision of existing respiratory flow regulating device also is difficult to guarantee in addition, and high-precision device needs expensive electromagnetic proportional valve and flow sensor by adopting complicated closed loop control algorithm to realize that not only cost height and maintenance difficulties are large usually, and maintenance cost is high.Current equipment operating is complicated, and the technical costs height is safeguarded inconvenience, and maintenance cost is high, the technological means complexity that adopts in order to reach precision, and risk is large.
The utility model content
Reduce the technical costs reliability and maintainability that develops skill in order to overcome the deficiencies in the prior art, improve precision and the automatic control degree of respiratory flow regulating device, the utility model provides a kind of respiratory flow regulating device and lung ventilator.
A kind of respiratory flow regulating device, comprise apparatus main body, described apparatus main body comprises the apparatus main body chamber, be installed in the spool in the described apparatus main body chamber, air intake opening, the gas outlet, and the gas channel that is communicated with described air intake opening and gas outlet, also comprise motor and control module, close described gas channel one end of described spool is provided with the passage plug, described passage plug was different from the gap between the gas channel when described passage plug was in diverse location in the described gas channel, store the corresponding relation of the angle that the motor shaft of gas flow by gas channel and described motor rotates in the described control module, described control module drives the described spool of control by controlling the described motor shaft anglec of rotation, and then makes described passage plug rest on the interior relevant position of described gas channel.
Preferably, also comprise gear pair, rotational potentiometer or photoelectric coded disk, the first photoelectric sensor, the second photoelectric sensor, described gear pair comprises the first gear and the second gear that is meshed, described motor shaft drives described rotational potentiometer or photoelectric coded disk synchronous rotary, described motor shaft is successively by driving described the first gear and the second gear, driving described spool moves in described apparatus main body chamber, be provided with axial through hole apart from motor shaft setpoint distance place on described the first gear, described the first gear next door to the circumference of the described setpoint distance of motor shaft, described the first photoelectric sensor and the second photoelectric sensor are set, described control module is used for, when described through hole moves to aligning the first photoelectric sensor or the second photoelectric sensor, drive described motor counter motion or stop motion.
Preferably, described control module is electrically connected with described rotational potentiometer or photoelectric coded disk, described control module is used for, behind control module control electric machine rotation set angle, whether the output electrical signals that detects rotational potentiometer or photoelectric coded disk equates with set angle with the angle of judging described motor actual rotation.
Preferably, also comprise spool gag lever post, elastic component, the described spool gag lever post of described the second gear driven is along moving in the described apparatus main body chamber, described spool gag lever post one end and described the second gears, the other end in described apparatus main body chamber and between described spool and the second gear to limit the range of movement of described spool, described elastic component is installed in the described apparatus main body chamber and an end contacts with spool, for generation of the elastic force that makes described spool towards described gas channel motion.
Preferably, described control module is used for comprising the gas flow size that receives input.
Preferably, described passage plug is shaped as sphere, taper shape or pyramid.
The utility model also provides a kind of lung ventilator, and it adopts described respiratory flow regulating device.
The beneficial effects of the utility model are: by setting up the corresponding relation of gas flow size and the angle of motor shaft rotation, can realize the automatic control to gas flow; Increase simultaneously rotational potentiometer or photoelectric coded disk to the feedback detection of the motor shaft anglec of rotation, so that the control of gas flow is more accurate; In addition, utilize two photoelectric sensors to the detection of the through hole on the first gear, effectively avoided motor shaft excessively to rotate and the destruction rotational potentiometer.Respiratory flow regulating device of the present utility model is reliable and stable, with low cost, safeguards that simply maintenance cost is low, and is easy to operate, can shorten and rescue setup time, improves patient's salvage success rate, and automaticity is high.
Description of drawings
Fig. 1 is the structural representation of the respiratory flow regulating device of a kind of embodiment of the utility model.
Embodiment
Below with reference to accompanying drawing, specific embodiment of the utility model is described in further detail.
As shown in Figure 1, a kind of respiratory flow regulating device, comprise apparatus main body, motor (control motor), gear pair, rotational potentiometer, control module, the first photoelectric sensor 13, the second photoelectric sensor 16, wherein, apparatus main body comprises apparatus main body chamber A, be installed in the spool 1 in the A of apparatus main body chamber, spool gag lever post 3, air intake opening B, gas outlet C, and the gas channel 15 that is communicated with air intake opening B and gas outlet C, close gas channel 15 1 ends of spool 1 are provided with passage plug 7(and are called again flow controller or orifice plug), when road plug 7 is in diverse location in the gas channel 15, passage plug 7 is different from the gap between the gas channel 15, like this, each passage plug 7 residing diverse location is namely corresponding flows through the corresponding gas flow of gas channel 15, for reaching this purpose, the cross-sectional area of the part that enters gas channel 15 of passage plug 7 can reduce gradually, for example passage plug 7 is spherical, conical, perhaps pyramid etc., be beneficial to like this passage plug 7 and enter gas channel 15, and the maximum cross-section area of passage plug 7 preferably can just coincide with the size of gas channel 15, can realize like this purpose of complete closed gas flow passage 15, gear pair comprises the first gear 10 and the second gear 9 that is meshed, the motor shaft of motor be installed in the first gear 10 in the heart and drive the first gear 10 and rotate, spool gag lever post 3 one ends be installed in the second gear 9 in the heart, the top of the other end also close spool 1 in the A of apparatus main body chamber, the second gear 9 can drive spool gag lever post 3 and move up and down along apparatus main body chamber A, the certain distance of an angle spool of the second gear 9 revolutions gag lever post 3 motions, thereby, can set up the corresponding relation of motor shaft rotational angle and gas flow; The bottom of the spool 1 of close gas channel 15 is provided with passage plug 7, rotational potentiometer is fixed on the motor shaft by fixed pin 11, thereby can with the motor shaft synchronous rotary, the electrical signal output electric signal corresponding with its anglec of rotation of rotational potentiometer, and be electrically connected with control module, motor is electrically connected with control module, offer a through hole 12 on the circumference apart from the motor shaft certain radius on the first gear 10, near on the circumference apart from this radius of motor shaft of the first gear 10, the first photoelectric sensor 13 and the second photoelectric sensor 16 are set, during 10 rotation of the first gear, the first photoelectric sensor 13 and the second photoelectric sensor 16 can be aimed at this through hole 12.
Store the corresponding relation of the angle that the motor shaft of gas flow by gas channel 15 and motor rotates in the control module.
The respiratory flow regulating device can also comprise elastic component 4, and this elastic component 4 is installed in the A of apparatus main body chamber and an end contacts with spool 1, for generation of the elastic force that makes spool 1 towards gas channel 15 motions.Preferably, this elastic component 4 can be stage clip, and it is enclosed within on the spool gag lever post 3, and an end is butted on the spool 1, and the other end is butted on the inwall of apparatus main body.
Have in the situation that gas enters at air intake opening B, when certain gas flow of needs, can input this gas flow to control module by input equipment, control module is found out the angle that corresponding motor should rotate according to this gas flow, the drive motor axle rotates this angle, thereby under the drive of motor shaft, the first gear 10 and the second gear 9 rotate corresponding angle, and the corresponding distance of driving spool gag lever post 3 motions, because being subject to the stream pressure of air intake opening B, spool 1 moves towards spool gag lever post 3 along apparatus main body chamber A, finally blocked by spool gag lever post 3 and rest on certain position, simultaneously passage plug 7 is parked in the position of the correspondence in the gas channel 15, and the gas flow by this gas channel 15 is just to the gas flow of control module input.
In some cases, motor may not rotate corresponding angle, thereby so that error appears in actual gas flow by gas passage 15, therefore, control module judges whether the angle of rotational potentiometer rotation is identical with this corresponding angle, if different by detecting the electric signal of rotational potentiometer output, then continue motor is driven control, until the angle of the rotational potentiometer that detects rotation is consistent with this corresponding angle.Like this, namely finish the closed-loop control to the motor anglec of rotation and gas flow, improved the precision of gas flow.
Because the anglec of rotation of rotational potentiometer has certain scope, exceeds its scope and then can destroy its inner structure and make its inefficacy.Therefore, with the first photoelectric sensor 13(optoelectronic switch) and the second photoelectric sensor 16 be arranged on certain circumference centered by motor shaft, the two angle can cooperate the rotation angle range setting (for example 0 to 360 °) of rotational potentiometer, like this, if through hole 12 rotation is when aiming at the first photoelectric sensor 13, the first photoelectric sensor 13 detects the existence of through hole 12, control module is then controlled motor stop motion or control motor gyration (counter motion), will make the heterodromous instruction of motor unless control module has received.Equally, when through hole 12 rotation when aiming at the second photoelectric sensor 16, the second photoelectric sensor 16 detects the existence of through hole, and control module is then controlled the motor stop motion, perhaps controls motor counter motion (will make the heterodromous instruction of motor unless control module has received).For example, be in off status (optoelectronic switch is in out state when not having aligned through holes 12) when optoelectronic switch aligned through holes 12, when control module detected optoelectronic switch and is in off status, namely drive motor stopped or gyration.This shows, based on the control to motor of the result of detection of two photoelectric sensors, have precedence over after the steering order that control module receives user's input the control to motor, with the protection rotational potentiometer.Gyration refers to that motor is towards the direction rotation opposite with current sense of rotation.
When replacing rotational potentiometer with photoelectric coded disk, photoelectric coded disk also is synchronized with the movement with motor shaft, when photoelectric coded disk turns to certain angle, the pulse electrical signal of corresponding output corresponding number, control module namely can be judged the angle of photoelectric coded disk actual rotation according to this electric signal, be the angle of motor shaft actual rotation, can realize that equally feedback detects.
When not having gas to enter from air intake opening B, spool 1 moves towards gas channel 15 under the elastic force effect of elastic component 4, thereby passage plug 7 enters in the gas channel 15, blocks gas channel 15.
By above-mentioned principle of work as can be known, elastic component 4 is not to be necessary, because when air intake opening B does not have gas, whether gas passage 15 closes unimportant, and has had elastic component 4 to rock so that spool 1 is not easy to produce.In addition, when not having elastic component 4, spool 1 and spool gag lever post 3 can be fixed together, and namely can regard as into is the spool 1 of an integral body, and this spool 1 can move in the A of apparatus main body chamber along with the rotation of the second gear 9.
Control module can comprise mainboard and Electric Machine Control plate, store the mapping table of gas flow and the motor anglec of rotation in the mainboard, after mainboard receives user's input gas flow, mainboard sends the data of the motor anglec of rotation to the Electric Machine Control plate, thereby Electric Machine Control plate drive motor axle rotates corresponding angle, rotational potentiometer, Electric Machine Control plate are electrically connected with mainboard, and the Electric Machine Control plate is electrically connected with motor, the first photoelectric sensor 13 and the second photoelectric sensor 16 respectively.Rotational potentiometer and motor (for example can be installed on the apparatus main body, motor is installed on the uuper valve block 2, rotational potentiometer is installed on the lower valve block 5), the first photoelectric sensor 13 and the second photoelectric sensor 16 can be installed on the opto-electronic sensor support 14, and opto-electronic sensor support 14 can be fixed on the motor.Between source of the gas and the air intake opening B electromagnetic valve can also be set, the break-make of mainboard control electromagnetic valve.
Apparatus main body can surround apparatus main body chamber A by uuper valve block 2 and lower valve block 5.The outside cover of the bottom of spool 1 has O-ring seal 6, to prevent that gas is in the slit access to plant main cavity A between spool 1 and the apparatus main body, when adopting spherical channel plug 7, can be at the bottom of lower valve block 5 mounting limit plug 8, in case stop-pass road plug 7 drops out in gas channel 15.
Claims (7)
1. respiratory flow regulating device, comprise apparatus main body, described apparatus main body comprises the apparatus main body chamber, be installed in the spool in the described apparatus main body chamber, air intake opening, the gas outlet, and the gas channel that is communicated with described air intake opening and gas outlet, it is characterized in that: also comprise motor and control module, close described gas channel one end of described spool is provided with the passage plug, described passage plug was different from the gap between the gas channel when described passage plug was in diverse location in the described gas channel, store the corresponding relation of the angle that the motor shaft of gas flow by gas channel and described motor rotates in the described control module, described control module drives the described spool of control by controlling the described motor shaft anglec of rotation, and then makes described passage plug rest on the interior relevant position of described gas channel.
2. respiratory flow regulating device as claimed in claim 1, it is characterized in that: also comprise gear pair, rotational potentiometer or photoelectric coded disk, the first photoelectric sensor, the second photoelectric sensor, described gear pair comprises the first gear and the second gear that is meshed, described motor shaft drives described rotational potentiometer or photoelectric coded disk synchronous rotary, described motor shaft is successively by driving described the first gear and the second gear, driving described spool moves in described apparatus main body chamber, be provided with axial through hole apart from motor shaft setpoint distance place on described the first gear, described the first gear next door to the circumference of the described setpoint distance of motor shaft, described the first photoelectric sensor and the second photoelectric sensor are set, described control module is used for, when described through hole moves to aligning the first photoelectric sensor or the second photoelectric sensor, drive described motor counter motion or stop motion.
3. respiratory flow regulating device as claimed in claim 2, it is characterized in that: described control module is electrically connected with described rotational potentiometer or photoelectric coded disk, described control module is used for, behind control module control electric machine rotation set angle, whether the output electrical signals that detects rotational potentiometer or photoelectric coded disk equates with set angle with the angle of judging described motor actual rotation.
4. respiratory flow regulating device as claimed in claim 2, it is characterized in that: also comprise spool gag lever post, elastic component, the described spool gag lever post of described the second gear driven is along moving in the described apparatus main body chamber, described spool gag lever post one end and described the second gears, the other end in described apparatus main body chamber and between described spool and the second gear to limit the range of movement of described spool, described elastic component is installed in the described apparatus main body chamber and an end contacts with spool, for generation of the elastic force that makes described spool towards described gas channel motion.
5. respiratory flow regulating device as claimed in claim 1 is characterized in that: described control module is used for comprising the gas flow size that receives input.
6. respiratory flow regulating device as claimed in claim 1 is characterized in that: described passage plug be shaped as sphere, taper shape or pyramid.
7. a lung ventilator is characterized in that: adopt such as the arbitrary described respiratory flow regulating device of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528463 CN202870631U (en) | 2012-10-16 | 2012-10-16 | Respiratory flow adjusting device and respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528463 CN202870631U (en) | 2012-10-16 | 2012-10-16 | Respiratory flow adjusting device and respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202870631U true CN202870631U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220528463 Withdrawn - After Issue CN202870631U (en) | 2012-10-16 | 2012-10-16 | Respiratory flow adjusting device and respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202870631U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866713A (en) * | 2012-10-16 | 2013-01-09 | 深圳市安保科技有限公司 | Respiratory flow adjusting device and breathing machine |
| CN103529864A (en) * | 2013-09-29 | 2014-01-22 | 中国科学院电子学研究所 | Device and method of automatic constant current regulation of controlled object |
| CN105324642A (en) * | 2013-06-28 | 2016-02-10 | 康尔福盛303公司 | Flow sensor |
| CN105358202A (en) * | 2013-06-28 | 2016-02-24 | 康尔福盛303公司 | Ventilator system |
| US9541098B2 (en) | 2013-06-28 | 2017-01-10 | Vyaire Medical Capital Llc | Low-noise blower |
| US9707369B2 (en) | 2013-06-28 | 2017-07-18 | Vyaire Medical Capital Llc | Modular flow cassette |
| US9795757B2 (en) | 2013-06-28 | 2017-10-24 | Vyaire Medical Capital Llc | Fluid inlet adapter |
| US9962514B2 (en) | 2013-06-28 | 2018-05-08 | Vyaire Medical Capital Llc | Ventilator flow valve |
-
2012
- 2012-10-16 CN CN 201220528463 patent/CN202870631U/en not_active Withdrawn - After Issue
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866713B (en) * | 2012-10-16 | 2015-03-25 | 深圳市安保科技有限公司 | Respiratory flow adjusting device and breathing machine |
| CN102866713A (en) * | 2012-10-16 | 2013-01-09 | 深圳市安保科技有限公司 | Respiratory flow adjusting device and breathing machine |
| WO2014059830A1 (en) * | 2012-10-16 | 2014-04-24 | 深圳市安保科技有限公司 | Respiratory flow adjusting device and breathing machine |
| CN105358202A (en) * | 2013-06-28 | 2016-02-24 | 康尔福盛303公司 | Ventilator system |
| CN105324642A (en) * | 2013-06-28 | 2016-02-10 | 康尔福盛303公司 | Flow sensor |
| US9541098B2 (en) | 2013-06-28 | 2017-01-10 | Vyaire Medical Capital Llc | Low-noise blower |
| US9707369B2 (en) | 2013-06-28 | 2017-07-18 | Vyaire Medical Capital Llc | Modular flow cassette |
| US9746359B2 (en) | 2013-06-28 | 2017-08-29 | Vyaire Medical Capital Llc | Flow sensor |
| US9795757B2 (en) | 2013-06-28 | 2017-10-24 | Vyaire Medical Capital Llc | Fluid inlet adapter |
| US9962514B2 (en) | 2013-06-28 | 2018-05-08 | Vyaire Medical Capital Llc | Ventilator flow valve |
| US10495112B2 (en) | 2013-06-28 | 2019-12-03 | Vyaire Medical Capital Llc | Low-noise blower |
| US10539444B2 (en) | 2013-06-28 | 2020-01-21 | Vyaire Medical Capital Llc | Flow sensor |
| US10549063B2 (en) | 2013-06-28 | 2020-02-04 | Vyaire Medical Capital Llc | Modular flow cassette |
| CN103529864B (en) * | 2013-09-29 | 2016-02-03 | 中国科学院电子学研究所 | A kind of controlled device automatic constant current regulating device and method |
| CN103529864A (en) * | 2013-09-29 | 2014-01-22 | 中国科学院电子学研究所 | Device and method of automatic constant current regulation of controlled object |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20150325 |
|
| RGAV | Abandon patent right to avoid regrant |