CN206560583U - A kind of air channel switching device - Google Patents
A kind of air channel switching device Download PDFInfo
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- CN206560583U CN206560583U CN201621122973.3U CN201621122973U CN206560583U CN 206560583 U CN206560583 U CN 206560583U CN 201621122973 U CN201621122973 U CN 201621122973U CN 206560583 U CN206560583 U CN 206560583U
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Abstract
The utility model is related to medical breathing apparatus technical field, more particularly to a kind of air channel switching device, including two symmetrically arranged valves, drives the actuator of valve folding；Actuator includes the mounting groove, back-moving spring and the spring installation axle for installing back-moving spring of connecting valve；Valve includes air door, rotary shaft and gear, and air door is fixedly installed in rotary shaft, and gear is fixedly arranged on one end of rotary shaft；The teeth groove matched with gear is provided with mounting groove, valve realizes that gear drive is connected with actuator by gear and teeth groove.The air channel switching device realizes the rotation of air door using simple gear transmission structure, when back-moving spring in the raw when, the airway patency in main frame；When actuator is by pressed by external force, air door is turned in the middle part of the air flue of main frame, separates the connection of air flue, meanwhile, the passage that humidification machine is connected in main frame is opened；The automatic switchover in air channel can be achieved in pressing actuator when humidification machine is connected, and simple in construction, operation is very easy.
Description
Technical field
The utility model is related to medical breathing apparatus technical field, more particularly to a kind of air channel switching device.
Background technology
Lung ventilator is as a device with artificial ventilation's function, and breathing declines caused by being commonly used to a variety of causes
Exhaust, in the treatment of disease such as sleep apnea low-ventilatory syndrome, it occupies highly important position in Modern Medical Field
Put.In order to reduce the discomfort and related complication of patients with respiratory tract drying and thing followed patient, lung ventilator typically has
Change the device of the humidity of breathable gas.Using being placed on lung ventilator（Continuous positive pressure ventilation device）Between patient mask
Humidifier can produce humidification gas, and humidification gas causes drying for schneiderian membrane to minimize and increase the comfortable of patients with respiratory tract
Sense.
Lung ventilator is usually to be made up of main frame and humidifier, and lung ventilator product has following two forms in the market,
One kind is main frame and humidification machine design for disassembly, can be each used alone, another when main frame is integrated with humidification machine
Design, it is impossible to be each used alone, the flexibility of product is relatively low, and existing product is generally replaced by the design of the first form
Generation.
The lung ventilator of the first form, although main frame and humidifier are provided separately, still, it needs to lead to when in use
Piping connects the entrance of the air outlet slit of main frame and humidifier, and then pipeline is connected to air outlet slit and the face of humidifier again
Cover.Need not to gas humidification in the case of, it is necessary to by the pipeline on mask from humidification machine dial under be installed on main frame；
Humidifier is needed in the case of adding water, it is necessary to first turn off breathing apparatus.Handoff procedure Program is more, complex operation.
Therefore, there is problem for of the prior art, a kind of master simple in construction, can realizing lung ventilator of offer is provided badly
Machine and the handoff technique of humidification machine automatic switchover airway path are particularly important.
Utility model content
The purpose of this utility model is to avoid weak point of the prior art and provide one kind simple in construction, Neng Goushi
The main frame of existing lung ventilator and the air channel switching device of humidification machine automatic switchover airway path.
The purpose of this utility model is achieved through the following technical solutions：
A kind of air channel switching device, including two symmetrically arranged valves are provided, the actuator of valve folding is driven；It is described
Actuator includes connecting the mounting groove of the valve, back-moving spring and the spring installation axle for installing back-moving spring；The valve
Including air door, rotary shaft and gear, the air door is fixedly installed in rotary shaft, and the gear is fixedly arranged on the one of the rotary shaft
End；The teeth groove matched with the gear is provided with the mounting groove, the valve passes through the gear and tooth with actuator
Groove realizes that gear drive is connected；
When back-moving spring in the raw when, the air door close it is on the main frame of lung ventilator, for connecting humidification machine
Passage, now, the airway patency in the main frame of lung ventilator；
When actuator is by pressed by external force, back-moving spring produces deformation, and the gear is rotated in the presence of teeth groove, institute
Air door is stated as the rotary shaft is moved and cuts off the connection of the air flue in main frame.
Wherein, the air door, rotary shaft and gear are formed in one part.
Wherein, the outer rim of the air door is provided with flexible glue sealing ring.
Wherein, the projection of convenient pressing is provided with the actuator.
Wherein, the actuator both sides are provided with the limited block for limiting movement locus.
The beneficial effects of the utility model are：
The air channel switching device realizes the rotation of air door using simple gear transmission structure, when back-moving spring is in nature
During state, the airway patency that air door is closed in main frame in the passage for connecting humidification machine, main frame；When actuator is by pressed by external force
When, air door is turned in the middle part of the air flue of main frame, separates the connection of air flue, meanwhile, the passage that humidification machine is connected in main frame is opened,
The air-flow of main frame air flue one end enters after humidification machine, enters back into the other end of main frame air flue, finally exports and discharges from main frame；The wind
Road switching device is simple in construction, and pressing actuator realizes the automatic switchover in air channel when humidification machine is connected, and operation is very easy.
Brief description of the drawings
The utility model is described further using accompanying drawing, but the content in accompanying drawing is not constituted to of the present utility model
What is limited.
Fig. 1 is the structural representation of air channel switching device of the present utility model.
Fig. 2 is the structural representation of Fig. 1 another angle.
Fig. 3 is the structural representation of the pressured state of air channel switching device of the present utility model.
Fig. 4 is the structural representation of a valve.
Fig. 5 is the use state schematic diagram of air channel switching device of the present utility model.
Fig. 6 is the schematic diagram of Fig. 5 simplification structure.
Fig. 7 be air channel switching device in the raw when air channel interior air-flow direction schematic diagram.
Fig. 8 is the schematic diagram in air channel interior air-flow direction when air channel switching device is in pressured state.
Include in Fig. 1 into Fig. 8：
1 --- actuator；
11 --- mounting groove；
12 --- back-moving spring；
13 --- spring installation axle；
14 --- projection；
15 --- limited block；
16 --- teeth groove；
2 --- valve；
21 --- air door；
22 --- rotary shaft；
23 --- gear；
3 --- air flue；
31 --- the first air inlet；
32 --- the first gas outlet；
33 --- the second air inlet；
34 --- the second gas outlet.
Embodiment
In order that the object, technical solution and advantage of utility model are more clearly understood, below in conjunction with drawings and Examples,
The utility model is further elaborated.
Embodiment
A kind of one of embodiment of air channel switching device of the present utility model, as shown in Figures 1 to 8, including two right
Claim the valve 2 set, drive the actuator 1 of the folding of valve 2；Actuator 1 includes mounting groove 11, the back-moving spring of connecting valve 2
12 and install back-moving spring 12 spring installation axle 13；Valve 2 includes air door 21, rotary shaft 22 and gear 23, and air door 21 is consolidated
Dingan County is loaded on rotary shaft 22, and gear 23 is fixedly arranged on one end of rotary shaft 22；It is provided with what is matched with gear 23 in mounting groove 11
Teeth groove 16, valve 2 realizes that gear 23 is connected with actuator 1 by gear 23 and teeth groove 16；The air flue 3 of main frame includes first
Air inlet 31, the first gas outlet 32, the second air inlet 33 and the second gas outlet 34.
When back-moving spring 12 in the raw when, air door 21 close lung ventilator main frame on, for connecting humidification machine
Passage（That is the second gas outlet 34 and the second air inlet 33）, now, the air flue 3 in the main frame of lung ventilator is unobstructed, air-flow from
First air inlet 31 enters, and is directly discharged by air flue 3 from the first gas outlet 32.
When actuator 1 is by pressed by external force, back-moving spring 12 produces deformation, and gear 23 turns in the presence of teeth groove 16
Dynamic, air door 21 moves with rotary shaft 22 and cuts off the air flue 3 in main frame and connects, and air-flow comes out from the second gas outlet 34, then from
Second air inlet 33 enters, and is finally discharged from the first gas outlet 32.
Wherein, air door 21, rotary shaft 22 and gear 23 are formed in one part.It is integrally formed part and makes simple, cost is relatively low,
And effectively prevent and connect more stable between the error in assembling process, component.
Wherein, the outer rim of air door 21 is provided with flexible glue sealing ring.Either it is used for the connection for cutting off main frame air flue 3, or uses
In closing the second air inlet 33 and the second gas outlet 34, preferable sealing effectiveness is attained by using flexible glue sealing ring, air-flow is more
Plus it is smooth, the user experience of lung ventilator is relatively comfortable.
Wherein, the projection 14 of convenient pressing is provided with actuator 1.When humidification machine is connected with main frame, humidification machine is direct
Extrusion lug 14, can realize that pressing actuator 1 opens the second air inlet 33 and the second gas outlet 34, operation is very easy.
Wherein, the both sides of actuator 1 are provided with the limited block 15 for limiting movement locus.Utilize monosymmetric limited block
15 is spacing, no matter pressing dynamics is inclined to which side can meet position-limiting action, limit effect is preferable.
The air channel switching device realizes the rotation of air door 21 using the simple drive mechanism of gear 23, at back-moving spring 12
When nature, the air flue 3 that air door 21 is closed in main frame in the passage for connecting humidification machine, main frame is unobstructed；When actuator 1 by
During to pressed by external force, air door 21 turns to the middle part of air flue 3 of main frame, separates the connection of air flue 3, meanwhile, humidifying is connected in main frame
The passage of device is opened, and the air-flow of the one end of main frame air flue 3 enters after humidification machine, enters back into the other end of main frame air flue 3, finally from
Main frame outlet discharge；The air channel switching device is simple in construction, and pressing actuator 1 realizes that the automatic of air channel cuts when humidification machine is connected
Change, operation is very easy.
Finally it should be noted that above example is merely to illustrate the technical solution of the utility model rather than to this practicality
The limitation of novel protected scope, although being explained in detail with reference to preferred embodiment to the utility model, the common skill of this area
Art personnel should be appreciated that can modify or equivalent substitution to the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme.
Claims (5)
1. a kind of air channel switching device, it is characterised in that：Including two symmetrically arranged valves, the driving of valve folding is driven
Part；The actuator includes connecting the mounting groove of the valve, back-moving spring and the spring installation axle for installing back-moving spring；
The valve includes air door, rotary shaft and gear, and the air door is fixedly installed in rotary shaft, and the gear is fixedly arranged on the rotation
One end of axle；The teeth groove matched with the gear is provided with the mounting groove, the valve passes through the tooth with actuator
Wheel and teeth groove realize that gear drive is connected；
When back-moving spring in the raw when, the air door close it is on the main frame of lung ventilator, for connecting the logical of humidification machine
Stomata, now, the airway patency in the main frame of lung ventilator；
When actuator is by pressed by external force, back-moving spring produces deformation, and the gear is rotated in the presence of teeth groove, the wind
Door is as the rotary shaft is moved and cuts off the connection of the air flue in main frame.
2. a kind of air channel switching device according to claim 1, it is characterised in that：The air door, rotary shaft and gear are
It is integrally formed part.
3. a kind of air channel switching device according to claim 1, it is characterised in that：The outer rim of the air door is close provided with flexible glue
Seal.
4. a kind of air channel switching device according to claim 1, it is characterised in that：Be provided with the actuator it is convenient by
The projection of pressure.
5. a kind of air channel switching device according to claim 1, it is characterised in that：The actuator both sides, which are provided with, to be used for
Limit the limited block of movement locus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122973.3U CN206560583U (en) | 2016-10-14 | 2016-10-14 | A kind of air channel switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122973.3U CN206560583U (en) | 2016-10-14 | 2016-10-14 | A kind of air channel switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206560583U true CN206560583U (en) | 2017-10-17 |
Family
ID=60028424
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621122973.3U Active CN206560583U (en) | 2016-10-14 | 2016-10-14 | A kind of air channel switching device |
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| Country | Link |
|---|---|
| CN (1) | CN206560583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515112A (en) * | 2018-11-22 | 2019-03-26 | 常熟市汽车饰件股份有限公司 | Automobile push type air outlet structure |
-
2016
- 2016-10-14 CN CN201621122973.3U patent/CN206560583U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515112A (en) * | 2018-11-22 | 2019-03-26 | 常熟市汽车饰件股份有限公司 | Automobile push type air outlet structure |
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