CN106422012A - Amortization cover and breathing machine - Google Patents
Amortization cover and breathing machine Download PDFInfo
- Publication number
- CN106422012A CN106422012A CN201611033642.7A CN201611033642A CN106422012A CN 106422012 A CN106422012 A CN 106422012A CN 201611033642 A CN201611033642 A CN 201611033642A CN 106422012 A CN106422012 A CN 106422012A
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- CN
- China
- Prior art keywords
- air flue
- air
- snail
- blower fan
- silencer cover
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/42—Reducing noise
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to a silencing cover and a breathing machine. The silencing cover comprises a cover body; a plane spiral air passage is arranged in the cover body; the plane spiral air passage forms an air passage air inlet in the circumferential direction of the cover body; an air passage air outlet is also arranged on the cover body; the planar spiral air passage spirals around the air outlet of the air passage; the ratio of the diameter of the air outlet of the air passage to the screw pitch of the planar spiral air passage ranges from 1.3 to 3. The fan of the breathing machine is provided with the silencing cover. The invention aims to provide a silencing cover and a breathing machine, and aims to solve the technical problems that an existing silencing device is large in size and unobvious in noise reduction effect.
Description
Technical field
The present invention relates to technical field of medical instruments, especially relate to a kind of silencer cover and lung ventilator.
Background technology
Blower fan is widely used in medical field, especially lung ventilator.In current clinical medicine, lung ventilator is as an energy
The effective means of artificial substituting expiratory positive airway pressure function, during being commonly used to respiratory failure caused by a variety of causes, major operation
The Breathing Suppotion treatment of anesthesia respiration management, emergency resuscitation and family expenses is medium, occupies particularly significant in Modern Medical Field
Position.Lung ventilator is that one kind can play prevention and treatment respiratory failure, reduces complication, saves and extends patients ' lives
Vital Medical Devices.
Existing blower fan includes housing, impeller and motor, and housing is provided with air inlet and air outlet, and impeller is located at housing
Inside, the output shaft drive connection impeller of motor so that gas along air inlet towards the direction of air outlet flow.But it is existing
Blower fan in wheel rotation when, vibrations can be produced with the air of surrounding, thus creating noise, noise can bring tired to patient
Dry mood, makes the normal rest of patient, sleep environment be difficult to be guaranteed, is unfavorable for the recovery of patient health.
The noise that existing silencing means can produce to the air inlet of blower fan plays certain reduction effect, but, one
Aspect, the volume of existing silencing means is big, therefore increased the volume of blower fan, not readily portable；On the other hand, existing disappear
Although mixer can play the effect of noise reduction, Noise Reduction is inconspicuous, through the blower fan of existing silencing means noise reduction,
Also affect rest and the physical recovery of patient.
Therefore, the application is directed to the problems referred to above and provides a kind of new silencer cover and lung ventilator.
Content of the invention
It is an object of the invention to provide a kind of silencer cover, to solve, volume that existing silencing means exists is big and noise reduction
Act on unconspicuous technical problem.
The present invention also aims to providing a kind of lung ventilator, deposited with the silencing means solving existing lung ventilator further
Volume is big and the unconspicuous technical problem of Noise Reduction.
Based on above-mentioned first purpose, the present invention provides a kind of silencer cover, including cover body；
It is provided with snail air flue in described cover body；
Described snail air flue forms air flue air inlet in the circumference of described cover body；
Air flue gas outlet is additionally provided with described cover body；
Described snail air flue is around described air flue gas outlet spiral；
Ratio range between the pitch of the diameter of described air flue gas outlet and described snail air flue is 1.3-3.
Further, the ratio between the pitch of the diameter of air flue gas outlet of the present invention and described snail air flue
Scope is 1.5-2.
Further, the scope of the number of turns of helix of snail air flue of the present invention is enclosed for 2-5.
Further, the scope of the number of turns of helix of snail air flue of the present invention is enclosed for 2.5-4.5.
Further, silencer cover of the present invention is formed in one and forms.
Further, cover body of the present invention is made up of acoustic material.
Based on above-mentioned second purpose, the present invention provides a kind of lung ventilator, and including blower fan, described blower fan includes impeller, described
Air inlet and fan outlet are provided with the body of blower fan, above-mentioned silencer cover is set at described air inlet；
The rotation direction of described snail air flue is identical with the steering of the impeller of described blower fan.
Further, silencer cover of the present invention and described body snapping.
Further, it is provided with sealing ring between silencer cover of the present invention and described body.
Further, the material of body of the present invention is silicon rubber；
Described silicon rubber forms air-out passage at described fan outlet.
In sum, during installation, by identical with the steering of the impeller of blower fan for the rotation direction of snail air flue installation；Lung ventilator
Blower fan work when, the wheel rotation of blower fan, form negative pressure at air inlet, air is by the air flue air inlet of silencer cover
Flow into snail air flue, enter the air inlet of blower fan from air flue gas outlet, and then enter in blower fan, in the identical rotation of impeller
To rotation after, from fan outlet discharge, that is,：Air enter back into blower fan after silencer cover so that air according to impeller
Steering identical rotation direction enter air inlet, thus reducing impeller and windage to produce noise；
On the other hand, the small volume of silencer cover, reduces length of flow in snail air flue for the air, thus reducing
The loss of air energy.
It is ensured that air flue gas outlet is just to air inlet when silencer cover is installed on blower fan, and make air inlet
Size be more than the size of air flue gas outlet, prevent the end face collision at air and air inlet that air flue gas outlet is flowed out
Produce noise.
In addition, the ratio range between the pitch of the diameter of air flue gas outlet and snail air flue is 1.3-3.One side
Face, the ratio between the pitch of the diameter of air flue gas outlet and snail air flue can not be too little, in order to air-flow from plane spiral shell
Rotation air flue is discharged by air flue gas outlet, prevents gas from piling up at air flue gas outlet, between generation air, air and plane spiral shell
The rotation collision of air flue, extruding and produce noise；Ratio between the pitch of the diameter of air flue gas outlet and snail air flue is not
Can be too big, the diameter of air flue gas outlet is too big, on the premise of the volume ensureing not expanding silencer cover, can reduce snail gas
The number of turns in road, makes air produce the DeGrain of spiral air flow.
To sum up, the silencer cover that the present invention provides solves that the volume that the silencing means of existing lung ventilator exists is big and noise reduction
Act on unconspicuous technical problem.
Lung ventilator, including blower fan, described blower fan includes impeller, and the body of described blower fan is provided with air inlet and wind
Machine air outlet, arranges above-mentioned silencer cover at described air inlet；The rotation direction of described snail air flue and described blower fan
The steering of impeller is identical, solves the volume that the silencing means of existing lung ventilator exists further big and Noise Reduction is inconspicuous
Technical problem.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structural representation of silencer cover first state provided in an embodiment of the present invention；
Fig. 2 is the structural representation of silencer cover second state provided in an embodiment of the present invention；
Fig. 3 is the structural representation (not showing the top board of cover body) of the silencer cover third state provided in an embodiment of the present invention；
Fig. 4 is the structural representation of the blower fan of lung ventilator provided in an embodiment of the present invention.
Icon：1- cover body；2- snail air flue；21- air flue air inlet；22- air flue gas outlet；3- body；31- blower fan
Air outlet.
Specific embodiment
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described with the enforcement it is clear that described
Example is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplify description, rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the structural representation of silencer cover first state provided in an embodiment of the present invention；Fig. 2 carries for the embodiment of the present invention
For silencer cover second state structural representation；Fig. 3 is that the structure of the silencer cover third state provided in an embodiment of the present invention is shown
It is intended to (not showing the top board of cover body)；Fig. 4 is the structural representation of the blower fan of lung ventilator provided in an embodiment of the present invention.
Embodiment one
Referring to shown in Fig. 1-Fig. 4, the present embodiment provides a kind of silencer cover, including cover body 1；
It is provided with snail air flue 2 in described cover body 1；
Described snail air flue 2 forms air flue air inlet 21 in the circumference of described cover body 1；
It is additionally provided with air flue gas outlet 22 on described cover body 1；
Described snail air flue 2 is around described air flue gas outlet 22 spiral；
Ratio range between the pitch of the diameter of described air flue gas outlet 22 and described snail air flue 2 is 1.3-3.
It should be noted that cover body 1 includes top board, perisporium and base plate, top board, perisporium and base plate form air flue cavity, put down
Surface helix air flue 2 is arranged in air flue cavity, and air flue air inlet 21 is arranged on perisporium, and air flue gas outlet 22 is arranged at base plate
On, during use, base plate is connected with blower fan, and air flue gas outlet 22 is connected with the air inlet of blower fan.
Preferably, during installation, the rotation direction of snail air flue 2 is identical with the steering of the impeller of blower fan；
During wheel rotation in blower fan, impeller can produce vibrations with the air of surrounding, thus creating noise, noise can be given
Patient brings fidgety mood, makes the normal rest of patient, sleep environment be difficult to be guaranteed, is unfavorable for the extensive of patient health
Multiple.The silencing means of prior art can play certain reduction effect to the noise of blower fan, but, on the one hand, existing noise reduction
The volume of device is big, therefore increased the volume of blower fan, not readily portable；On the other hand, although existing silencing means can
Play certain Noise Reduction, but Noise Reduction is inconspicuous, through the blower fan of existing silencing means noise reduction, also affect
The rest of patient and physical recovery.
During the blower fan work of the present embodiment, the wheel rotation of blower fan, form negative pressure at air inlet, air passes through to disappear
The air flue air inlet 21 of sound cover flows into snail air flue 2, enters the air inlet of blower fan, Jin Erjin from air flue gas outlet 22
Enter in blower fan, after the rotation of the identical rotation direction of impeller, discharge from fan outlet 31, that is,：Air enters back into after silencer cover
Blower fan.Air is made to enter air inlet according to the steering identical rotation direction with impeller, thus reducing impeller and windage
Produce noise；
On the other hand, the small volume of silencer cover, reduces length of flow in snail air flue 2 for the air, thus subtracting
The little loss of air energy.
Preferably, it is ensured that air flue gas outlet 22 is just to air inlet when silencer cover being installed on blower fan, and make wind
The size of machine air inlet is more than the size of air flue gas outlet 22, prevents air and the air inlet flowing out from air flue gas outlet 22
The end face collision at place produces noise.
Preferably, the ratio range between the pitch of the diameter of air flue gas outlet 22 and snail air flue 2 is 1.3-3；
For example, the ratio between the pitch of the diameter of air flue gas outlet 22 and snail air flue 2 is 1.3,1.5,2,2.5,3 etc..
On the one hand, the ratio between the pitch of the diameter of air flue gas outlet 22 and snail air flue 2 can not be too little, so that
Discharged by air flue gas outlet 22 from snail air flue 2 in air-flow, prevent gas from piling up at air flue gas outlet 22, occur empty
The collision, the extruding that occur between gas, between air and snail air flue 2 and produce noise；On the other hand, air flue gas outlet 22
Diameter and the pitch of snail air flue 2 between ratio can not be too big, the diameter of air flue gas outlet 22 is too big, is ensureing not
On the premise of expanding the volume of silencer cover, the number of turns of snail air flue 2 can be reduced, make the effect of air generation spiral air flow not
Substantially.
Table 1 lists under different motor speeds, using prior art silencing means blower fan apart from blower fan air-out
The noise test value of diverse location at mouthful
Table 1
| Rotating speed (rev/min) | 10860 | 15060 | 18420 | 21240 |
| Noise (db) at 15cm | 64 | 70 | 72 | 77 |
| Noise (db) at 20cm | 59 | 67 | 69 | 73 |
| Noise (db) at 30cm | 56.3 | 63 | 67 | 70 |
| Noise (db) at 40cm | 56 | 61.4 | 65 | 68 |
Table 2 lists under different motor speeds, using the present embodiment silencer cover blower fan apart from fan outlet
The noise test value of place's diverse location
Table 2
| Rotating speed (rev/min) | 10860 | 15060 | 18420 | 21240 |
| Noise (db) at 15cm | 59 | 65 | 68 | 72 |
| Noise (db) at 20cm | 57.5 | 64 | 67 | 71 |
| Noise (db) at 30cm | 56 | 62 | 65 | 69 |
| Noise (db) at 40cm | 55 | 61 | 63 | 67 |
Data display, the present embodiment provide silencer cover compare with prior art for there is more preferable noise reduction, solution
Determined existing lung ventilator silencing means exist volume is big and the unconspicuous technical problem of Noise Reduction.
Preferably, the ratio range between the pitch of the diameter of described air flue gas outlet 22 and described snail air flue 2
For 1.5-2.For example, the ratio between the pitch of the diameter of air flue gas outlet 22 and snail air flue 2 is 1.5,1.7,1.9,2
Deng.
It is easy to air-flow further to discharge by air flue gas outlet 22 from snail air flue 2, prevent gas from giving vent to anger in air flue
Pile up at mouthfuls 22, occur between air, collision, the extruding of air and snail air flue 2 and produce noise；And ensureing not expand
On the premise of the volume of big silencer cover, make the effect of air generation spiral air flow obvious.
Alternatively, the scope of the number of turns of helix of described snail air flue 2 is enclosed for 2-5.For example, snail air flue
The number of turns of 2 helix is 2,2.5,3,3.5,4,4.5,5 etc..
The number of turns of the helix of snail air flue 2 very little, makes air produce the DeGrain of spiral air flow, empty
Gas still can collide with impeller after entering blower fan, produces noise；The number of turns of the helix of snail air flue 2 is too many
Words, on the premise of the ratio between the diameter ensureing air flue gas outlet 22 and the pitch of snail air flue 2, can increase noise reduction
The volume of cover, thus increasing weight it has not been convenient to carry, also can increase the resistance to air for the air flue, weakening the energy of air.
Preferably, the scope of the number of turns of helix of described snail air flue 2 is enclosed for 2.5-4.5.For example, snail
The number of turns of the helix of air flue 2 is 2.5,3,3.5,4,4.5 etc..To ensure the effect of air generation spiral air flow further, and
The volume that silencer cover will not be made is inconvenient to carry greatly very much.
Preferably, described silencer cover is formed in one and forms.Integrally formed design enhance silencer cover intensity so that
Silencer cover can bear bigger rotation speed of fan it is also possible to improve the stability of air circulation, decreases air warp to a certain extent
Cross noise during snail air flue 2.Alternatively, silencer cover adopts the technology manufacture such as 3D printing, injection mo(u)lding.
Preferably, described cover body 1 is made up of acoustic material, reduce further air and flows through product during snail air flue 2
Raw noise；Alternatively, acoustic material can be for example PC (Merlon), PP (polypropylene), PE (polyethylene), ABS (propylene
Nitrile-BS) etc..Embodiment two
Embodiment two provides a kind of lung ventilator, and described lung ventilator includes the silencer cover described in embodiment one, embodiment one
The technical characteristic of disclosed silencer cover is also applied for this embodiment, and the technical characteristic of the published silencer cover of embodiment one is no longer
Repeated description.Below in conjunction with the accompanying drawings the embodiment of described lung ventilator is described in further detail.
For saving length, the improvement feature of this embodiment is same to be embodied in Figs. 1-4, therefore, in conjunction with Fig. 1-Fig. 4 to this
The scheme of embodiment illustrates.
Shown in Figure 4, the lung ventilator that the present embodiment provides, including blower fan, described blower fan includes impeller, described blower fan
Air inlet and fan outlet 31 are provided with body 3, above-mentioned silencer cover is set at described air inlet；
The rotation direction of described snail air flue 2 is identical with the steering of the impeller of described blower fan.
That is, during the blower fan work of lung ventilator, air flows into snail by the air flue air inlet 21 of silencer cover
Air flue 2, enters the air inlet of blower fan from air flue gas outlet 22, and then enters in blower fan, in the rotation of the identical rotation direction of impeller
Afterwards, discharge from fan outlet 31, that is,：Air enters back into blower fan after silencer cover so that air is according to the steering with impeller
Identical rotation direction enters air inlet, thus reducing impeller to produce noise with windage, solves existing exhaling further
The volume that the silencing means of suction machine exists is big and the unconspicuous technical problem of Noise Reduction.
Preferably, described silencer cover and described body 3 snapping.For example, away from snail air flue 2 on the base plate of silencer cover
One side be provided with projection, blower fan is provided with corresponding groove；Or, away from snail air flue 2 on the base plate of silencer cover
One side setting fluted, blower fan is provided with corresponding projection.
It should be noted that only list the specific embodiment of two kinds of snappings herein, it is capable of the structure of snapping not
It is limited to above two specific implementation, any structure enabling above-mentioned functions.
Preferably, it is provided with sealing ring (not shown) between described silencer cover and described body 3, thus strengthening noise reduction
Cover and the sealing effectiveness of blower fan, prevent air from passing through the gap leakage between silencer cover and blower fan and discharge, and produce vibration and make an uproar
Sound.
Preferably, the material of described body 3 is silicon rubber；
Described silicon rubber forms air-out passage at described fan outlet 31.
The soft texture of silicon rubber, can reduce the noise that blower fan vibrations produce, and silicon rubber is at fan outlet 31
Form the air-out passage of an extension, strengthen the buffering to air-flow, reduce the noise of air outlet.
Lung ventilator described in the present embodiment has the advantages that silencer cover described in embodiment one, and this advantage is in embodiment one
Describe in detail, here is not repeated.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of silencer cover is it is characterised in that include cover body；
It is provided with snail air flue in described cover body；
Described snail air flue forms air flue air inlet in the circumference of described cover body；
Air flue gas outlet is additionally provided with described cover body；Described snail air flue is around described air flue gas outlet spiral；
Ratio range between the pitch of the diameter of described air flue gas outlet and described snail air flue is 1.3-3.
2. silencer cover according to claim 1 is it is characterised in that the diameter of described air flue gas outlet and described snail
Ratio range between the pitch of air flue is 1.5-2.
3. silencer cover according to claim 1 is it is characterised in that the model of the number of turns of helix of described snail air flue
Enclose for 2-5 circle.
4. silencer cover according to claim 3 is it is characterised in that the model of the number of turns of helix of described snail air flue
Enclose for 2.5-4.5 circle.
5. silencer cover according to claim 1 is it is characterised in that described silencer cover is formed in one and forms.
6. silencer cover according to claim 1 is it is characterised in that described cover body is made up of acoustic material.
7. a kind of lung ventilator, including blower fan, described blower fan includes impeller, the body of described blower fan is provided with air inlet and
Fan outlet is it is characterised in that arrange the silencer cover as described in any one of claim 1-6 at described air inlet；
The rotation direction of described snail air flue is identical with the steering of the impeller of described blower fan.
8. lung ventilator according to claim 7 is it is characterised in that described silencer cover and described body snapping.
9. lung ventilator according to claim 8 is it is characterised in that be provided with sealing between described silencer cover and described body
Circle.
10. lung ventilator according to claim 7 is it is characterised in that the material of described body is silicon rubber；
Described silicon rubber forms air-out passage at described fan outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033642.7A CN106422012A (en) | 2016-11-18 | 2016-11-18 | Amortization cover and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033642.7A CN106422012A (en) | 2016-11-18 | 2016-11-18 | Amortization cover and breathing machine |
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| Publication Number | Publication Date |
|---|---|
| CN106422012A true CN106422012A (en) | 2017-02-22 |
Family
ID=58221516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033642.7A Pending CN106422012A (en) | 2016-11-18 | 2016-11-18 | Amortization cover and breathing machine |
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| CN (1) | CN106422012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116464675A (en) * | 2023-06-20 | 2023-07-21 | 河北拓顺医疗科技有限公司 | Shock-absorbing noise reduction device for ventilator built-in fan |
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| CN104132003A (en) * | 2014-07-30 | 2014-11-05 | 邵阳万脉科技有限公司 | Silencer of positive pressure ventilation equipment |
| CN204692195U (en) * | 2015-04-17 | 2015-10-07 | 青岛川林染料工业有限公司 | A kind of Large Size Induced Draft Fans denoising device |
| CN105736480A (en) * | 2016-04-28 | 2016-07-06 | 深圳市大雅医疗技术有限公司 | Small fan, air inlet denoising device thereof and respirator adopting same |
| CN206613010U (en) * | 2016-11-18 | 2017-11-07 | 泰锐菲克（天津）医疗科技有限公司 | Amortization cover and breathing machine |
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| CN116464675A (en) * | 2023-06-20 | 2023-07-21 | 河北拓顺医疗科技有限公司 | Shock-absorbing noise reduction device for ventilator built-in fan |
| CN116464675B (en) * | 2023-06-20 | 2023-09-01 | 河北拓顺医疗科技有限公司 | Shock-absorbing noise reduction device for ventilator built-in fan |
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Application publication date: 20170222 |