CN104208794B - Mixed oxygen valve and ventilator with the mixed oxygen valve - Google Patents
Mixed oxygen valve and ventilator with the mixed oxygen valve Download PDFInfo
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- CN104208794B CN104208794B CN201310215505.5A CN201310215505A CN104208794B CN 104208794 B CN104208794 B CN 104208794B CN 201310215505 A CN201310215505 A CN 201310215505A CN 104208794 B CN104208794 B CN 104208794B
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Abstract
The invention discloses a kind of mixed oxygen valves, also disclose a kind of ventilator with the mixed oxygen valve.The mixed oxygen valve includes: ontology, has air duct, oxygen channel and mixed gas passage in ontology, mixed gas passage is connected to each of air duct and oxygen channel；For being connected to and disconnecting the first regulating part of air duct, the first regulating part is movably arranged in air duct；For being connected to and disconnecting the second regulating part of oxygen channel, the second regulating part is movably arranged in oxygen channel, and the first regulating part and the second regulating part link；Linear bearing, linear bearing are located in ontology；With adjustment axis, in linear bearing, the one end for adjusting axis is stretched out linear bearing and is contacted with one in the first regulating part and the second regulating part to drive the first regulating part and the second regulating part mobile for adjustment axis cooperation.Mixed oxygen valve according to an embodiment of the present invention has many advantages, such as degree of regulation height, long service life.
Description
Technical field
The present invention relates to medical fields, in particular to a kind of mixed oxygen valve and with the ventilator of the mixed oxygen valve.
Background technique
Existing mixed oxygen valve haves the defects that service life is short.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem at least to a certain extent or at least provide one kind useful quotient
Industry selection.For this purpose, an object of the present invention is to provide a kind of mixed oxygen valves.
It is another object of the present invention to propose a kind of ventilator with the mixed oxygen valve.
To achieve the goals above, embodiment according to a first aspect of the present invention proposes a kind of mixed oxygen valve, the mixed oxygen valve
Including ontology, there is air duct, oxygen channel and mixed gas passage, the mixed gas passage and the air in the ontology
Each of channel and described oxygen channel are connected to；It is described for being connected to and disconnecting the first regulating part of the air duct
First regulating part is movably arranged in the air duct；For being connected to and disconnecting the second regulating part of the oxygen channel,
Second regulating part is movably arranged in the oxygen channel, and first regulating part and second regulating part link；
Linear bearing, the linear bearing are located in the ontology；With adjustment axis, the adjustment axis cooperates in the linear bearing,
One end of the adjustment axis is stretched out the linear bearing and is connect with one in first regulating part and second regulating part
Touching is mobile to drive first regulating part and second regulating part.
Mixed oxygen valve according to an embodiment of the present invention in the ontology by being arranged the linear bearing and the adjustment axis
Cooperation is in the linear bearing, so as to be accurately oriented to using the linear bearing to the adjustment axis, Er Qiesuo
The frictional force stated between adjustment axis and the linear bearing is almost nil.Thus the shifting of the rotation of the cam and the adjustment axis
Continuously linear relationship is formed between dynamic, so as to which the rotational angle of the motor is accurately converted into the adjustment axis
Moving distance, and then the mixed proportion of air and oxygen can be accurately controlled.Moreover, because using the linear bearing as
Guiding parts, therefore the cam is undertaken the vertical stress component of active force of the adjustment axis by the linear bearing, thus institute
Any abrasion will not be caused to the ontology in moving process by stating adjustment axis.
Therefore, mixed oxygen valve according to an embodiment of the present invention has many advantages, such as degree of regulation height, long service life.In other words,
Mixed oxygen valve according to an embodiment of the present invention can accurately adjust the mixed proportion of ventilatory capacity and air and oxygen, i.e., described mixed
Oxygen valve can accurately adjust the oxygen concentration in the gas by the mixed oxygen valve.
In addition, mixed oxygen valve according to the above embodiment of the present invention can also have the following additional technical features:
According to one embodiment of present invention, the ontology includes: the first valve body, spacious with one end in first valve body
The accommodating chamber opened, the interface channel being connected to the accommodating chamber and the mixed gas passage being connected to the accommodating chamber；Second
Valve body, a part of second valve body are located in the accommodating chamber and limit mixing chamber between the wall of the accommodating chamber,
Each of the interface channel and the mixed gas passage are connected to the mixing chamber, wherein tool in second valve body
There is the air duct, the air duct is connected to the mixing chamber；With third valve body, the third valve body is located at described
On one valve body, wherein having the oxygen channel in the third valve body, the oxygen channel is connected to the interface channel, institute
Linear bearing is stated to be located in the third valve body.Thus mixed oxygen valve has many advantages, such as simple and reasonable for structure.
According to one embodiment of present invention, the wall of the air duct is equipped with the first sealing ring, and described first is adjusted
Part and first sealing ring cooperate, and the wall of the interface channel is equipped with the second sealing ring, second regulating part with it is described
The cooperation of second sealing ring.It is possible thereby to adjust the flow of air and the flow of oxygen, more accurately so as to more accurate
Ground adjusting passes through the oxygen concentration in the gas of the mixed oxygen valve.
According to one embodiment of present invention, first regulating part includes the first ball base and is located at first ball
The first ball in seat, second regulating part include the second ball base and the second ball for being located in second ball base,
Wherein the mixed oxygen valve further includes mandril, and one end of the mandril is contacted with first ball and the other end and described second rolls
Pearl contact.Thus first regulating part and second regulating part have advantages of simple structure and simple.
According to one embodiment of present invention, the mixed oxygen valve further include: the first elastic component, the one of first elastic component
End is connected with the wall of the air duct and the other end is connected with first regulating part, wherein first elastic component is in shape
Change state, the first elastic force that first elastic component applies first regulating part is towards first sealing ring；With second
One end of elastic component, second elastic component is connected with the wall of the oxygen channel and the other end and the second regulating part phase
Even, wherein second elastic component is in deformed state, the second bullet that second elastic component applies second regulating part
Power is greater than second elastic force towards second sealing ring, first elastic force.Pass through it is possible thereby to adjust more accurately
Oxygen concentration in the gas of the mixed oxygen valve.
According to one embodiment of present invention, there is installation cavity, the linear bearing is located at described in the third valve body
In installation cavity, wherein third sealing ring is equipped between adjustment axis and the wall of the installation cavity, outside the third sealing ring
Circumferential surface is equipped with the ruffle with predetermined stroke.Thus not only axis and the installation cavity can be adjusted from described to avoid oxygen
It is escaped between wall, influences the degree of regulation of the mixed oxygen valve, and have by being arranged on the outer peripheral surface of the third sealing ring
There is the ruffle of predetermined stroke, so that it is mobile to will not influence the adjustment axis.
According to one embodiment of present invention, the mixed oxygen valve further includes rigid push piece, and the rigidity push piece is located at described
On third sealing ring, wherein one end of the rigidity push piece contacted with the adjustment axis and the other end and first regulating part and
A contact in second regulating part.
According to one embodiment of present invention, the mixed oxygen valve further includes linear bearing pressing plate, the linear bearing pressing plate
It is fixed on the third valve body and is contacted with the linear bearing.It is possible thereby to be firmly installed the linear bearing more
On the third valve body.
Embodiment according to a second aspect of the present invention proposes a kind of ventilator.The ventilator includes: rack；Motor, institute
Motor is stated to be mounted on the rack；Cam, the cam are connected to rotate under the drive of the motor with the motor；
And mixed oxygen valve, the mixed oxygen valve is the mixed oxygen valve according to first aspect present invention, wherein the cam and the adjustment axis
The length direction so as to adjustment axis described in the cam driven along the adjustment axis is contacted to move.
Ventilator according to an embodiment of the present invention, not only can be with by the way that mixed oxygen valve according to the above embodiment of the present invention is arranged
Meet requirement of the user to different oxygen concentrations, and has many advantages, such as degree of regulation height, long service life.
According to one embodiment of present invention, the motor is stepper motor, and the cam is involute cam.
According to one embodiment of present invention, the ventilator further include: bearing bracket stand, the bearing bracket stand and the adjustment axis
It is connected；And ball bearing, the ball bearing be located on the bearing bracket stand and with the cam contact.Thus the cam is revolving
When turning, the ball bearing also rotates, and the frictional force between the cam and the ball bearing is very small, so as to more
It accurately adjusts and passes through the oxygen concentration in the gas of the mixed oxygen valve.
According to one embodiment of present invention, the ventilator further includes guide bearing, and the guide bearing is rotatably
It is located in the rack, the first surface of the bearing bracket stand is plane and the first surface and the guide bearing are tangent.By
When this cam described in the motor driven rotates, it can prevent the bearing bracket stand from rotating.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of ventilator according to an embodiment of the present invention；
Fig. 2 is the cross-sectional view of ventilator according to an embodiment of the present invention；
Fig. 3 is the enlarged drawing of the a-quadrant of Fig. 2；
Fig. 4 is the cross-sectional view of ventilator according to an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Ventilator 1 according to an embodiment of the present invention is described referring to Fig. 1-Fig. 4.As Figure 1-Figure 4, according to the present invention
The ventilator 1 of embodiment includes mixed oxygen valve 10, rack 20, motor 30 and cam 40.Motor 30 is mounted in rack 20, cam 40
It is connected with motor 30 to be rotated under the drive of motor 30.
Mixed oxygen valve 10 according to an embodiment of the present invention is described with reference first to Fig. 1-Fig. 4.As Figure 1-Figure 4, according to this hair
The mixed oxygen valve 10 of bright embodiment includes ontology 110, the first regulating part 120 for being connected to and disconnecting air duct 101, for connecting
On and off opens the second regulating part 130, linear bearing 140 and adjustment axis 150 of oxygen channel 102.
There is air duct 101, oxygen channel 102 and mixed gas passage 103, mixed gas passage 103 and sky in ontology 110
Each of gas channel 101 and oxygen channel 102 are connected to.First regulating part 120 is movably arranged in air duct 101,
Second regulating part 130 is movably arranged in oxygen channel 102, and the first regulating part 120 and the second regulating part 130 link.Straight line
Bearing 140 is located in ontology 110.The cooperation of axis 150 is adjusted in linear bearing 140, linear bearing is stretched out in one end of adjustment axis 150
140 and adjust axis 150 one end contacted with one in the first regulating part 120 and the second regulating part 130 to drive the first tune
It saves part 120 and the second regulating part 130 is mobile.
Wherein, cam 40 is contacted with adjustment axis 150 so that cam 40 drives adjustment axis 150 along the length side of adjustment axis 150
To movement.
Mixed oxygen valve 10 according to an embodiment of the present invention is matched by the way that linear bearing 140 is arranged in ontology 110 and adjusts axis 150
It closes in linear bearing 140, is accurately oriented to so as to exchange bearing 150 using linear bearing 140, and adjust axis
Frictional force between 150 and linear bearing 140 is almost nil.Thus shape between the rotation of cam 40 and the movement of adjustment axis 150
At continuously linear relationship, so as to which the rotational angle of motor 30 to be accurately converted into the moving distance of adjustment axis 150, into
And the mixed proportion of air and oxygen can be accurately controlled.Moreover, because using linear bearing 140 as guiding parts, because
The vertical stress component that this cam 40 exchanges the active force of bearing 150 is undertaken by linear bearing 140, is thus adjusted axis 150 and is being moved through
In journey any abrasion will not be caused to ontology 110.
Therefore, mixed oxygen valve 10 according to an embodiment of the present invention has many advantages, such as degree of regulation height, long service life.Change speech
It, mixed oxygen valve 10 according to an embodiment of the present invention can accurately adjust the mixed proportion of ventilatory capacity and air and oxygen, i.e.,
Mixed oxygen valve 10 can accurately adjust the oxygen concentration in the gas by mixed oxygen valve 10.
Ventilator 1 according to an embodiment of the present invention is by being arranged mixed oxygen valve 10 according to the above embodiment of the present invention, not only
It can satisfy requirement of the user to different oxygen concentrations, and have many advantages, such as degree of regulation height, long service life.
As shown in figs 2-4, in some embodiments of the invention, ontology 110 may include the first valve body 111, second
Valve body 112 and third valve body 113.It can have the accommodating chamber 1111 of open at one end in first valve body 111, connect with accommodating chamber 1111
Logical interface channel 1112 and the mixed gas passage 103 being connected to accommodating chamber 1111.The a part of of second valve body 112 can be located at
In accommodating chamber 1111 and described a part of the second valve body 112 can limit mixing chamber between the wall of accommodating chamber 1111
1121, each of interface channel 1112 and mixed gas passage 103 can be connected to mixing chamber 1121.Second valve body 112
It inside can have air duct 101, air duct 101 can be connected to mixing chamber 1121.Third valve body 113 can be located at first
On valve body 111, oxygen channel 102 wherein can have in third valve body 113, oxygen channel 102 can be with interface channel 1112
Connection, linear bearing 140 can be located in third valve body 113.Thus mixed oxygen valve 10 has many advantages, such as simple and reasonable for structure.
In one embodiment of the invention, as shown in figs 2-4, it is close that first can be equipped on the wall of air duct 101
Seal 123, the first regulating part 120 can cooperate with the first sealing ring 123, and it is close that second can be equipped on the wall of interface channel 1112
Seal 133, the second regulating part 130 can cooperate with the second sealing ring 133.It is possible thereby to adjust the flow of air more accurately
With the flow of oxygen, so as to adjust the oxygen concentration in the gas by mixed oxygen valve 10 more accurately.
It is by air duct 101 into the air in mixed oxygen valve 10 and by oxygen by the oxygen concentration in the gas of mixed oxygen valve 10
What the ratio that gas channel 102 enters the different flow of oxygen in mixed oxygen valve 10 was mixed to form.Specifically, can be by adjusting the
In other words the distance between one regulating part 120 and the first sealing ring 123 can be adjusted to adjust the flow of air by first
The ventilation cross-sectional sizes formed between part 120 and the first sealing ring 123 adjust the flow of air.First regulating part 120 and
The distance between one sealing ring 123 is bigger, i.e. the ventilation section formed between the first regulating part 120 and the first sealing ring 123 is got over
Greatly, the flow of air is bigger, and the distance between the first regulating part 120 and the first sealing ring 123 are smaller, i.e. the first regulating part 120
The ventilation section formed between the first sealing ring 123 is smaller, and the flow of air is smaller.It can be by adjusting the second regulating part
130 and second the distance between sealing ring 133 in other words can pass through to adjust the flow of oxygen and adjust the second regulating part 130
The ventilation cross-sectional sizes formed between the second sealing ring 133 adjust the flow of oxygen.Second regulating part 130 and the second sealing
The distance between circle 133 is bigger, i.e. the ventilation section formed between the second regulating part 130 and the second sealing ring 133 is bigger, oxygen
Flow it is bigger, the distance between the second regulating part 130 and the second sealing ring 133 are smaller, i.e. the second regulating part 130 and second close
The ventilation section formed between seal 133 is smaller, and the flow of oxygen is smaller.And then pass through the stream of the flow and oxygen that adjust air
Amount is to change the oxygen concentration in mixed gas.Wherein, ventilation cross-sectional sizes corresponding, adjustment at a distance from the adjustment movement of axis 150
The mobile distance of axis 150 is corresponding with the rotational angle of motor 30.
Moreover, air duct 101 can be disconnected when the first regulating part 120 and the first sealing ring 123 contact, it can
Realize output pure oxygen.When the second regulating part 130 and the second sealing ring 133 contact, oxygen channel 102 can be disconnected, it can
Realize a delivery air.That is, by setting the first sealing ring 123 and the second sealing ring 133, the first regulating part 120 with
It may be implemented reliably to seal between first sealing ring 123, may be implemented between the second regulating part 130 and the second sealing ring 133
Reliable sealing.
As shown in figs 2-4, in some examples of the invention, the first regulating part 120 may include the first ball base 121
With the first ball 122 being located in the first ball base 121, the second regulating part 130 may include the second ball base 131 and be located at the
The second ball 132 in two ball bases 131.Wherein, mixed oxygen valve 10 can also include mandril 161, and one end of mandril 161 can be with
First ball 122 contact and mandril 161 the other end can be contacted with the second ball 132 so as to realize the first regulating part 120 and
The linkage of second regulating part 130.Thus the first regulating part 120 and the second regulating part 130 have advantages of simple structure and simple.
In an example of the invention, as shown in figs 2-4, mixed oxygen valve 10 can also include 162 He of the first elastic component
Second elastic component 163.One end of first elastic component 162 can be connected with the wall of air duct 101 and the first elastic component 162 it is another
One end can be connected with the first regulating part 120, wherein the first elastic component 162 may be at deformed state, the first elastic component 162 is right
The first elastic force that first regulating part 120 applies can be towards first sealing ring 123.One end of second elastic component 163 can be with
It is connected with the wall of oxygen channel 102 and the other end of the second elastic component 163 can be connected with the second regulating part 130, wherein second
Elastic component 163 may be at deformed state, and the second elastic force that the second elastic component 163 applies the second regulating part 130 can direction
Second sealing ring 133, first elastic force can be greater than second elastic force.Pass through the first elastic component 162 of setting and the second bullet
Property part 163, can adjust the oxygen concentration in the gas by mixed oxygen valve 10 more accurately.
When needing to reduce the oxygen concentration in the gas by mixed oxygen valve 10, can be rotated by motor 30 with moving cam 40
(such as cam 40 rotates clockwise), cam 40 drive adjustment axis 150 to move downward, and then adjust axis 150 and drive the first ball
122 and second ball 132 move downward.Thus the distance between the first ball 122 and the first sealing ring 123 become larger to increase
The flow of air, the distance between the second ball 132 and the second sealing ring 133 become smaller to reduce the flow of oxygen, so as to
To reduce the oxygen concentration in the gas by mixed oxygen valve 10.Wherein left and right directions is as shown in the arrow B in Fig. 1-Fig. 4.
When needing to increase the oxygen concentration in the gas by mixed oxygen valve 10, can be rotated by motor 30 with moving cam 40
(such as cam 40 rotates counterclockwise), the first elastic component 162 apply the first elastic force to the left, the second elasticity to the first ball 122
Part 163 applies the second elastic force to the right to the second ball 132.Since the first elastic force is greater than the second elastic force, the first elastic component
162 the first balls 122 of drive and the second ball 132 move right.Thus between the first ball 122 and the first sealing ring 123
Distance becomes smaller to reduce the flow of air, and the distance between the second ball 132 and the second sealing ring 133 become larger to increase oxygen
The flow of gas, so as to increase the oxygen concentration in the gas by mixed oxygen valve 10.At the same time, the second ball base 131 drives
Adjustment axis 150 moves right to adjust axis 150 and to contact always with cam 40.
As shown in figs 2-4, in a specific example of the invention, it can have installation cavity in third valve body 113
1131, linear bearing 140 can be located in installation cavity 1131.Wherein, adjusting can set between axis 150 and the wall of installation cavity 1131
There is third sealing ring 1132, the ruffle 11321 with predetermined stroke can be equipped on the outer peripheral surface of third sealing ring 1132.It changes
Yan Zhi, third sealing ring 1132 can be sleeved on adjustment axis 150.
By the way that third sealing ring 1132 is arranged between adjustment axis 150 and the wall of installation cavity 1131, so as to avoid oxygen
Gas is escaped between adjustment axis 150 and the wall of installation cavity 1131, influences the degree of regulation of mixed oxygen valve 10.Moreover, by third
There is the ruffle 11321(ruffle 11321 of predetermined stroke and the wall of installation cavity 1131 to connect for setting on the outer peripheral surface of sealing ring 1132
Touching), so that it is mobile to will not influence adjustment axis 150.Specifically, installation cavity 1131 can be located on the right side of third valve body 113.
Mixed oxygen valve 10 can also include rigid push piece 164, and rigid push piece 164 can be located on third sealing ring 1132.Its
In, one end of rigid push piece 164 can be contacted with adjustment axis 150 and the other end of rigid push piece 164 can be with the first regulating part
120 and second contact in regulating part 130.
Mixed oxygen valve 10 can also include linear bearing pressing plate 165, and linear bearing pressing plate 165 can be fixed on third valve body
On 113 and linear bearing pressing plate 165 can be contacted with linear bearing 140.It is possible thereby to pacify linear bearing 140 more firmly
On third valve body 113.Wherein, linear bearing pressing plate 165 can be fixed on the right side of third valve body 113, and straight line
It the left side of bearing plate 165 can be with the right side face contact of linear bearing 140.
Specifically, motor 30 can be stepper motor, the step number of stepper motor 30 with by the gas of mixed oxygen valve 10
Oxygen concentration is corresponding.Cam 40 can be involute cam.
As Figure 1-Figure 4, in some examples of the invention, ventilator 1 can also include bearing bracket stand 50 and ball axis
Hold 60.Bearing bracket stand 50 with adjustment axis 150 be connected, ball bearing 60 can be located on bearing bracket stand 50 and ball bearing 60 can with it is convex
40 contact of wheel.Thus when rotated, ball bearing 60 also rotates cam 40, and the frictional force between cam 40 and ball bearing 60 is non-
It is often small, so as to adjust the oxygen concentration in the gas by mixed oxygen valve 10 more accurately.Specifically, ball bearing 60 can be with
It is rotatably provided on bearing bracket stand 50.
In an example of the invention, as Figure 1-Figure 4, ventilator 1 can also include guide bearing 70, guiding axis
Holding 70 can be rotatably provided in rack 20, and the first surface of bearing bracket stand 50 can be for plane and the first surface can be with
Guide bearing 70 is tangent.Thus when motor 30 drives cam 40 to rotate, it can prevent bearing bracket stand 50 from rotating.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (11)
1. a kind of mixed oxygen valve characterized by comprising
Ontology, the ontology is interior to have air duct, oxygen channel and mixed gas passage, the mixed gas passage and the air
Each of channel and described oxygen channel are connected to；
For being connected to and disconnecting the first regulating part of the air duct, first regulating part is movably arranged at the air
In channel；
For being connected to and disconnecting the second regulating part of the oxygen channel, second regulating part is movably arranged at the oxygen
In channel, first regulating part and second regulating part link；
Linear bearing, the linear bearing are located in the ontology；With
Adjust axis, adjustment axis cooperation in the linear bearing, one end stretching linear bearing of the adjustment axis and
It is contacted with one in first regulating part and second regulating part to drive first regulating part and described second
Regulating part is mobile, wherein the ontology includes:
First valve body, accommodating chamber in first valve body with open at one end, the interface channel being connected to the accommodating chamber and
The mixed gas passage being connected to the accommodating chamber；
Second valve body, a part of second valve body are located in the accommodating chamber and limit between the wall of the accommodating chamber
Mixing chamber, each of the interface channel and the mixed gas passage are connected to the mixing chamber, wherein described second
There is the air duct, the air duct is connected to the mixing chamber in valve body；With
Third valve body, the third valve body are located on first valve body, wherein having the oxygen logical in the third valve body
Road, the oxygen channel are connected to the interface channel, and the linear bearing is located in the third valve body, second valve body
The opposite side of first valve body is set with the third valve body.
2. mixed oxygen valve according to claim 1, which is characterized in that the wall of the air duct is equipped with the first sealing ring,
First regulating part and first sealing ring cooperate, and the wall of the interface channel is equipped with the second sealing ring, and described second
Regulating part and second sealing ring cooperate.
3. mixed oxygen valve according to claim 2, which is characterized in that first regulating part includes the first ball base and is located at
The first ball in first ball base, second regulating part include the second ball base and are located in second ball base
The second ball, wherein the mixed oxygen valve further includes mandril, one end of the mandril is contacted with first ball and the other end
It is contacted with second ball.
4. mixed oxygen valve according to claim 2, which is characterized in that further include:
One end of first elastic component, first elastic component is connected with the wall of the air duct and the other end and described first is adjusted
It saves part to be connected, wherein first elastic component is in deformed state, first elastic component applies first regulating part
First elastic force is towards first sealing ring；With
One end of second elastic component, second elastic component is connected with the wall of the oxygen channel and the other end and described second is adjusted
It saves part to be connected, wherein second elastic component is in deformed state, second elastic component applies second regulating part
Second elastic force is greater than second elastic force towards second sealing ring, first elastic force.
5. mixed oxygen valve according to claim 1, which is characterized in that have installation cavity, the straight line in the third valve body
Bearing is located in the installation cavity, wherein third sealing ring is equipped between adjustment axis and the wall of the installation cavity, described the
The outer peripheral surface of three sealing rings is equipped with the ruffle with predetermined stroke.
6. mixed oxygen valve according to claim 5, which is characterized in that further include rigid push piece, the rigidity push piece is located at institute
It states on third sealing ring, wherein one end of the rigidity push piece is contacted with the adjustment axis and the other end and first regulating part
With a contact in second regulating part.
7. mixed oxygen valve according to claim 1, which is characterized in that it further include linear bearing pressing plate, the linear axis pressure-bearing
Plate is fixed on the third valve body and contacts with the linear bearing.
8. a kind of ventilator characterized by comprising
Rack；
Motor, the motor are mounted on the rack；
Cam, the cam are connected to rotate under the drive of the motor with the motor；With
Mixed oxygen valve, the mixed oxygen valve be according to mixed oxygen valve of any of claims 1-7, wherein the cam with it is described
Length direction of the adjustment axis contact so as to adjustment axis described in the cam driven along the adjustment axis moves.
9. ventilator according to claim 8, which is characterized in that the motor is stepper motor, and the cam is gradually to open
Line cam.
10. ventilator according to claim 9, which is characterized in that further include:
Bearing bracket stand, the bearing bracket stand are connected with the adjustment axis；With
Ball bearing, the ball bearing be located on the bearing bracket stand and with the cam contact.
11. ventilator according to claim 10, which is characterized in that further include guide bearing, the guide bearing can revolve
It is located in the rack with turning, the first surface of the bearing bracket stand is plane and the first surface and the guide bearing phase
It cuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215505.5A CN104208794B (en) | 2013-05-31 | 2013-05-31 | Mixed oxygen valve and ventilator with the mixed oxygen valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215505.5A CN104208794B (en) | 2013-05-31 | 2013-05-31 | Mixed oxygen valve and ventilator with the mixed oxygen valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104208794A CN104208794A (en) | 2014-12-17 |
| CN104208794B true CN104208794B (en) | 2019-02-05 |
Family
ID=52090957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310215505.5A Active CN104208794B (en) | 2013-05-31 | 2013-05-31 | Mixed oxygen valve and ventilator with the mixed oxygen valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105987215B (en) * | 2015-01-30 | 2018-09-18 | 北京雅果科技有限公司 | A kind of switch valve and operating method having air circuit breaker function |
| CN205307557U (en) * | 2015-07-06 | 2016-06-15 | 北京谊安医疗***股份有限公司 | Breathing machine mixes integral oxygen passage of mixing of oxygen valve |
| CN105963836B (en) * | 2016-05-31 | 2019-02-15 | 广州五颗星信息科技有限公司 | A kind of novel medical ventilator |
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| CN1938537A (en) * | 2004-03-26 | 2007-03-28 | 液体空气乔治洛德方法利用和研究的具有监督和管理委员会的有限公司 | Fluid distribution and control valve and use thereof to supply enriched air to the occupants of an aircraft |
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| CN104208794A (en) | 2014-12-17 |
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