CN108057188A - A kind of outlet valve of adjustable Opening pressure - Google Patents
A kind of outlet valve of adjustable Opening pressure Download PDFInfo
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- CN108057188A CN108057188A CN201711484118.6A CN201711484118A CN108057188A CN 108057188 A CN108057188 A CN 108057188A CN 201711484118 A CN201711484118 A CN 201711484118A CN 108057188 A CN108057188 A CN 108057188A
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- pressure
- valve
- valve block
- housing
- pressure regulator
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
- A62B9/022—Breathing demand regulators
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- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
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- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a kind of outlet valves of adjustable Opening pressure, including valve seat, inside set pilot hole and inlet channel；Valve block is fixedly connected with guide rod, and guide rod correspondence is arranged in pilot hole, and valve block has first side and the second side opposite with first side, and inlet channel is located at the one side of first side；When the pressure that first side is subject to is more than the pressure that second side is subject to, valve block lifts off a seat to form expiration passageway；When the pressure that second side is subject to is more than the pressure that first side is subject to, valve block fits closely valve seat；Housing is connected with valve seat, and covers at valve block periphery, is equipped with the outlet passageway being in communication with the outside in housing positioned at the one side of the second side of valve block；It further includes：Pressure regulator is threadedly coupled with housing；Elastic element, between pressure regulator and the second side of valve block；Wherein, pressure regulator is connected through a screw thread the opposite amount of feeding adjusted therebetween with housing, with the decrement of regulation elasticity element.
Description
Technical field
The present invention relates to a kind of outlet valve more particularly to a kind of outlet valves of adjustable Opening pressure.
Background technology
Air respiratorresuscitator is equipped as a kind of respiratory protection, be widely used to heavy industry, sewage disposal, oil, chemical industry,
The fields such as ship handle the severe works such as fire, hazardous materials spillage, smog, anoxic for fireman and relevant staff
Industry scene, so as to carry out fire source detecting, fire extinguishing, the disaster relief, speedily carry out rescue work and the work such as rescue.
The operation principle of air respiratorresuscitator is：Air is stored in the form of compressed air in gas cylinder, opens high pressure gas
During cylinder valve, the pressure-air being stored in gas cylinder enters pressure reducer by high-pressure gas cylinder valve, and pressure-air is depressurized in
Pressure, pressure pipe enters the steam supply valve being mounted on mask during middle pressure air passes through, and steam supply valve is required according to the breathing of user, is provided and
From the air in gas cylinder.When people's air-breathing, steam supply valve is opened, and provides air-flow；When people exhales, steam supply valve is closed, exhalation
Gas discharged through the outlet valve on mask, when stopping exhaling, outlet valve is closed, and is prepared air-breathing next time, is thus completed
One breath cycle process.
But in the prior art, the opening force of outlet valve is unadjustable.Due to the elasticity member of outlet valve under normal conditions
Part, the making of sealing diaphragm and valve body or assembling there are error, be easy to cause outlet valve opening force and expiratory resistance and
Air-tightness is unstable, so as to influence efficiency of assembling and client tries out experience or even can cause security risk.
Based on this, it is desirable to a kind of outlet valve of adjustable Opening pressure is obtained, so as to correct the elastic element of outlet valve, close
Error existing for the making or assembling of sealer piece and valve body, it is ensured that the mask of air respiratorresuscitator is with stable performance and well
User experience.
The content of the invention
It is an object of the invention to provide a kind of outlet valve of adjustable Opening pressure, the Opening pressure of the outlet valve can be with
It adjusts, when the outlet valve is used for air respiratorresuscitator, air respiratorresuscitator face can be changed by adjusting the Opening pressure of outlet valve
Expiratory resistance in cover, so that it is guaranteed that the mask of air respiratorresuscitator has stable performance and good user experience.
In order to achieve the above object, the present invention provides a kind of outlet valve of adjustable Opening pressure, including：
Valve seat, it is interior to be equipped with pilot hole, it is equipped with inlet channel in the valve seat；
Valve block is fixedly connected with guide rod, and the guide rod correspondence is arranged in the pilot hole, and the valve block has
First side and the second side opposite with first side, the inlet channel are located at the one side of first side；Work as first side
When the pressure being subject to is more than the pressure that second side is subject to, the valve block leaves the valve seat to form expiration passageway；When second
When the pressure that side is subject to is more than the pressure that first side is subject to, the valve block fits closely the valve seat；
Housing is connected with the valve seat, and covers at the valve block periphery, and the second side of valve block is located in the housing
The one side in face is equipped with the outlet passageway being in communication with the outside；
The outlet valve of the adjustable Opening pressure further includes：
Pressure regulator is threadedly coupled with the housing；
Elastic element is arranged between the pressure regulator and the second side of valve block；
Wherein, the pressure regulator adjusts the opposite amount of feeding therebetween after being connected through a screw thread with the housing,
With the decrement of regulation elasticity element.
In technical solutions according to the invention, by adjusting the pressure regulator being threadedly coupled with housing, make pressure tune
Saving part and housing has the opposite amount of feeding, so as to the decrement of regulation elasticity element, so that adjustment effect is in the pressure of second side
Power, so as to adjust the Opening pressure of adjustable Opening pressure outlet valve of the present invention.
It should be noted that in technical solutions according to the invention, in some embodiments, housing is connected with valve seat
Place is equipped with sealing element, to ensure the leakproofness of the outlet valve of adjustable Opening pressure of the present invention, it is ensured that in inlet channel
User's exhaled gas can only be discharged into the outlet passageway communicated with air by the exhalation passages between valve seat and valve block.
In addition it is also necessary to explanation, in technical solutions according to the invention, in some embodiments, elasticity member
Part can have good elastic stability and the material of higher fatigue life to be made by spring etc., and the shape of elastic element can
To be cylindric or circular cone shape (i.e. pagoda shape), when using spring as elastic element, the cross section of spring wire can be set
Count into circular or rectangle.
Further, in the outlet valve of adjustable Opening pressure of the present invention, the pressure regulator is arranged on institute
It states in housing, the side wall of pressure regulator has external screw thread, is threadedly coupled with the internal thread with housing, the pressure regulator
Top surface has rotation force slot, in order to apply the power that it is made to be rotated around own axes to pressure regulator.
In technical solutions according to the invention, the top surface of pressure regulator has rotation force slot, in order to pressure
Regulating part application makes the power that it is rotated around own axes, so as to adjust the opposite amount of feeding between pressure regulator and housing, from
And the decrement of regulation elasticity element.It should be noted that in the outlet valve of adjustable Opening pressure of the present invention,
In some embodiments, flat recess, cross recess, interior hexagonal, Nei Wujiao, interior corner, interior may be employed in the structure of rotation force slot
The structure of the similar screw head force shape such as triangle, outer-hexagonal, Wai Wujiao, outer corner, outer triangle and flower pattern.
Further, the outlet valve of adjustable Opening pressure of the present invention, further includes：Pressure adjusts fastener,
It is along the radial direction of pressure regulator through the housing, so that the tail end that pressure adjusts fastener is held out against in pressure regulator
Side wall on.
In technical solutions according to the invention, pressure adjusts fastener and passes through shell along the radial direction of pressure regulator
Body so that pressure adjust fastener tail end hold out against on the side wall of pressure regulator, so as to pressure regulator will elasticity member
The decrement of part is adjusted to after necessary requirement, is adjusted by pressure and is held out against effect between fastener and pressure regulator, it is ensured that
Screw thread between pressure regulator and housing does not loosen, so that it is guaranteed that the decrement of elastic element remains unchanged.
In addition, in the outlet valve of adjustable Opening pressure of the present invention, in some embodiments, pressure is adjusted
The structure of similar screw may be employed in fastener.
Further, in the outlet valve of adjustable Opening pressure of the present invention, the pressure regulator, which has, to be set
In the in vivo first portion of the shell and the second portion outside housing, the side wall of the first portion has external screw thread, with
It is threadedly coupled with the internal thread of housing, the second portion has force periphery, in order to make it to pressure regulator application
The power rotated around own axes.
In technical solutions according to the invention, the second portion of pressure regulator has force periphery, in order to
Pressure regulator application makes the power that it is rotated around own axes, so as to adjust the opposite feeding between pressure regulator and housing
Amount, so as to the decrement of regulation elasticity element.
Further, the outlet valve of adjustable Opening pressure of the present invention, further includes：Pressure adjusts fastener,
The second portion of pressure regulator is passed through along the radial direction of pressure regulator so that the tail end that pressure adjusts fastener is held out against
On housing.
In technical solutions according to the invention, pressure adjusts fastener and passes through pressure along the radial direction of pressure regulator
The second portion of regulating part is so that the tail end that pressure adjusts fastener is held out against on housing, so as to will elasticity member in pressure regulator
The decrement of part is adjusted to after necessary requirement, is adjusted by pressure and is held out against effect between fastener and housing, it is ensured that pressure tune
Screw thread between section part and housing does not loosen, so that it is guaranteed that the decrement of elastic element remains unchanged.
In addition, in the outlet valve of adjustable Opening pressure of the present invention, in some embodiments, pressure is adjusted
The structure of similar screw may be employed in fastener.
Further, in the outlet valve of adjustable Opening pressure of the present invention, the pressure regulator, which has, to be set
In the in vivo first portion of the shell, the side wall of the first portion is had external screw thread, is threadedly coupled with the internal thread with housing,
The top surface of the pressure regulator has rotation force slot, in order to make what it was rotated around own axes to pressure regulator application
Power.
In technical solutions according to the invention, the top surface of pressure regulator has rotation force slot, in order to pressure
Regulating part application makes the power that it is rotated around own axes, so as to adjust the opposite amount of feeding between pressure regulator and housing, from
And the decrement of regulation elasticity element.It should be noted that in the outlet valve of adjustable Opening pressure of the present invention,
In some embodiments, flat recess, cross recess, interior hexagonal, Nei Wujiao, interior corner, interior may be employed in the structure of rotation force slot
The structure of the similar screw head force shape such as triangle, outer-hexagonal, Wai Wujiao, outer corner, outer triangle and flower pattern.
Further, in the outlet valve of adjustable Opening pressure of the present invention, the pressure regulator also has
The second portion protruded in its axial direction from housing, the side wall of the second portion is equipped with external screw thread, equipped with internal thread
Pressure adjust fastener be threadedly coupled with the second portion.
In technical solutions according to the invention, pressure regulator also has the protruded in its axial direction from housing
Two parts, the side wall of second portion is equipped with external screw thread, if female pressure adjusts fastener and the second portion spiral shell
Line connects, so that after pressure regulator adjusts the decrement of elastic element to necessary requirement, fastener is adjusted by pressure
Effect is screwed between the second portion of pressure regulator, it is ensured that the screw thread between pressure regulator and housing does not loosen, from
And ensure the decrement of elastic element and remain unchanged.
Further, in the outlet valve of adjustable Opening pressure of the present invention, in the second side of the valve block
Equipped with elastic element locating slot, yi word pattern or L-type or U-shaped elastic element supporting item are equipped in the elastic element locating slot,
The elastic element supporting item is arranged on the lower section of elastic element.
It certainly, in other implementations, can also be before ensuring that elastic element locating slot wall thickness and rigidity are enough
It puts, and saves elastic element supporting item.
In addition, it should also be noted that, smooth guide rod, axis and valve are equipped among the technical program middle valve plate
Piece axis overlap and ensure it is vertical with the big plane of valve block sealed bottom, so as to valve block exhale rise it is steady always in opening process
Rise without crooked and card resistance.
In technical solutions according to the invention, the second side of valve block is equipped with elastic element locating slot, will pass through
Elastic element is mounted in elastic element locating slot, elastic element is made to be installed on valve block.In addition, in elastic element locating slot
Yi word pattern or L-type or U-shaped elastic element supporting item can be equipped with, in some embodiments, elastic element supporting item can be with
It is made of hard materials such as engineering plastics, light metal materials.In addition, in some embodiments, the elastic element support of L-type
Part can be integrated with valve block and guide rod by rubber vulcanization process, form a global facility.
Further, in the outlet valve of adjustable Opening pressure of the present invention, the valve block is arranged to have
The structure gradually thinning from middle part to edge.The structure can ensure that partially thick rigidity is big among the valve block, and edge is relatively thin and flexible,
Meeting when exhaling has certain tilting effect, to ensure that the vapour lock of exhalation passages is as small as possible.
In technical solutions according to the invention, valve block is arranged to structure gradually thinning from middle part to edge,
Preferably, the cross-sectional shape of valve block is taper, to ensure elastic element can either be stably installed on valve block, and can
The Opening pressure of the outlet valve of adjustable Opening pressure of the present invention is reduced, in some preferred embodiments, is exhaled
When, the edge of valve block tilts, to ensure relatively low expiratory resistance.Moreover it is preferred that the outer surface of valve block is using at ramming dumb light
It manages so that the smooth exquisiteness of valve block surfacing, hardness control are tight with valve seat so as to be effectively ensured between the degree of shore 40 to 60
Closely connected conjunction, it is ensured that expiration passageway strictly sealing shut-off under non-expiration state.
It should be noted that in some embodiments, due to elastic element supporting item and valve block and the guide rod of L-type
It is integrated by rubber vulcanization process, forms a global facility, in such embodiment, the middle part and side of valve block
Portion has equally thin thickness, and the elastic element supporter among valve block plays the role of support and positioning elastic element.
Further, in the outlet valve of adjustable Opening pressure of the present invention, what the valve seat was contacted with valve block
Raised annular convex platform on end face, when the pressure that second side is subject to is more than the pressure that first side is subject to, the ring
The top surface of shape boss fits closely the valve block, and the cross section of the annular convex platform is tapered, and the top surface of the annular convex platform is in
Arc.
In technical solutions according to the invention, raised annular convex platform on the end face that valve seat is contacted with valve block, when
When the pressure that second side is subject to is more than the pressure that first side is subject to, the top surface of annular convex platform fits closely valve block, convex annular
The cross section of platform is tapered, and the top surface of annular convex platform is arc-shaped, it is preferable that the annular convex platform outer surface have it is smooth, without scratch
And the features such as fluctuating of recess, corrugationless and coplanar top toroid, to ensure that the annular convex platform can carry out between valve block
Effective uniform close is bonded and seals.
Further, in the outlet valve of adjustable Opening pressure of the present invention, what the valve seat was contacted with valve block
The one side for being located at valve block edge on end face, in the annular convex platform is additionally provided with annular groove, the cross section of the annular groove it is V-shaped or
It is inverted trapezoidal.
In technical solutions according to the invention, it is located at valve block side on the end face that valve seat is contacted with valve block, in annular convex platform
The one side in portion is additionally provided with that cross section is V-shaped or inverted trapezoidal annular groove, and air-flow is flipped up during to exhale, so that exhaling
The gas gone out is better by expiration passageway.
Further, the outlet valve of adjustable Opening pressure of the present invention adjusts locating part, installation including pressure
In in housing, below pressure regulator and it is located above valve block.
Above-mentioned pressure adjusts locating part to prevent when pressure regulator feeds down regulation elasticity compression element amount, mistake
When crossing pressure regulator caused by feeding with housing to depart from, while ensuring that valve block is lifted off a seat, the valve block can be by pressure
It adjusts locating part bottom end face to be stopped, to prevent valve block aperture excessive.
Certainly, it is total in other embodiment, the pressure can not also be set to adjust locating part.
The outlet valve of adjustable Opening pressure of the present invention by the decrement of pressure regulator regulation elasticity element,
So as to adjust the Opening pressure of outlet valve, make the outlet valve of adjustable Opening pressure of the present invention there is better user's body
Effect is tested, and it is safe and reliable, it can be widely applied to the fields such as air respiratorresuscitator.
Description of the drawings
Fig. 1 be adjustable Opening pressure of the present invention outlet valve under the first embodiment sectional view.
Fig. 2 shows the top view of the outlet valve of adjustable Opening pressure shown in FIG. 1.
Fig. 3 is the section of valve seat of the outlet valve of adjustable Opening pressure of the present invention under the first embodiment
Figure.
Fig. 4 is valve block and guiding of the outlet valve of adjustable Opening pressure of the present invention under the first embodiment
The sectional view of bar.
Fig. 5 is sectional view of the outlet valve of adjustable Opening pressure of the present invention under second of embodiment.
Fig. 6 is sectional view of the outlet valve of adjustable Opening pressure of the present invention under the third embodiment.
Fig. 7 is sectional view of the outlet valve of adjustable Opening pressure of the present invention under the 4th kind of embodiment.
Fig. 8 is valve block and guiding of the outlet valve of adjustable Opening pressure of the present invention under the 5th kind of embodiment
The sectional view of bar.
Fig. 9 is valve block and guiding of the outlet valve of adjustable Opening pressure of the present invention under the 6th kind of embodiment
The sectional view of bar.
Figure 10 is valve block of the outlet valve under the 7th kind of embodiment of adjustable Opening pressure of the present invention and leads
To the sectional view of bar.
Specific embodiment
It below will according to a particular embodiment of the invention and Figure of description is to adjustable Opening pressure of the present invention
Outlet valve be further described, but the explanation does not constitute improper limitations of the present invention.
Embodiment one
As depicted in figs. 1 and 2, the outlet valve of adjustable Opening pressure of the present invention includes in the present embodiment：Valve
Seat 1, valve block 4 and housing 7.Wherein, pilot hole and inlet channel 3 are equipped in valve seat 1, the periphery of valve seat 1 is equipped with sealing ring 17；Valve
Piece 4 is fixedly connected with the corresponding guide rod 5 being arranged in pilot hole, valve block 4 have first side 41 and with 41 phase of first side
To second side 42, inlet channel 3 is located at the one side of first side 41；Housing 7 is connected with valve seat 1, and covers at valve block 4
Periphery, the one side of the interior second side 42 positioned at valve block 4 of housing 7 are equipped with the outlet passageway 8 being in communication with the outside.In addition, this is adjustable
The outlet valve of section Opening pressure further includes：Pressure regulator 9A and elastic element 10.Wherein, the side wall of pressure regulator 9A has
External screw thread 9A1 is threadedly coupled with the internal thread with housing 7, and elastic element 10 is arranged on the second side of pressure regulator 9A and valve block 4
Between face 42.
In this embodiment, elastic element 10 applies downward pressure to valve block 4, so that valve block 4 is close with valve seat 1
Contact, so that the outlet valve is closed under normal conditions.When the wearer inhales the air, the first side 41 of valve block 4 is due to being subject to negative pressure to make
It is acted on the pre-compression force with elastic element 10, and is fitted closely with valve seat 1, so that outlet valve is closed.When user exhales
When going out gas, the gas of exhalation applies pressure via inlet channel 3 to the first side 41 of valve block 4, so that the pressure gram
The pressure that elastic element 10 is applied to second side 42 is taken, so that valve block 4 lifts off a seat 1, outlet valve is opened and formed and exhaled
Road 6, the gas of user's exhalation are discharged by expiration passageway 6 in the outlet passageway 8 being in communication with the outside.Pressure regulator 9A's
Top surface has rotation force slot 9A2, when to rotation force slot 9A2 applied forces so that pressure regulator 9A is rotated around own axes
When, the opposite amount of feeding between pressure regulator 9A and housing 7 can be adjusted, thus the decrement of regulation elasticity element 10, with
Adjust the Opening pressure of outlet valve.
In the present embodiment, the outlet valve of adjustable Opening pressure of the present invention further includes pressure and adjusts locating part
16, it is installed on inside housing 7.When pressure regulator 9A through exert a force thereon slot 9A2 force towards valve block direction feed down with
During the decrement of regulation elasticity element 10, pressure regulator 9A due to pressure adjust locating part 16 backstop action, without with
Housing 7 departs from.In addition, pressure adjust locating part 16 can also limit valve block 4 lift off a seat 1 range, pass through pressure tune
16 lower face of locating part is saved to the position-limiting action of 4 top surface of valve block, elastic element 10 can be prevented to be further compressed.
Fig. 3 shows further the structure diagram of valve seat 1 in the present embodiment.As shown in figure 3, in the present embodiment, valve
Seat has the pilot hole 2 passed through for guide rod at 1 center.Raised annular convex platform on the end face that valve seat 1 is contacted with valve block 4
14, when the pressure that second side 42 is subject to is more than the pressure that first side 41 is subject to, the top surface and valve block 4 of annular convex platform 14 are tight
Closely connected conjunction.In addition, in the present embodiment, the cross section of annular convex platform 14 is tapered, the top surface of annular convex platform 14 is arc-shaped, and ring
The outer surface of shape boss 14 have it is smooth, rise and fall without scratch and recess, corrugationless, to ensure that the annular convex platform 14 can be with valve block
It is effectively sealed between 4.In addition, in the present embodiment, it is located on the end face that valve seat 1 is contacted with valve block 4, in annular convex platform 14
The one side of 4 edge of valve block is additionally provided with annular groove 15, and the cross section of annular groove 15 can be designed to V-type or inverted trapezoidal, so that
Air-flow is flipped up during expiration, so that the gas of exhalation is better by expiration passageway 6.
Fig. 4 shows further the structure of the present embodiment middle valve plate 4.As shown in figure 4, in the present embodiment, valve block 4 is set
It is set to structure gradually thinning from middle part to edge.Wherein middle part is thicker enables elastic element 10 to be obtained on valve block 4
It obtains and supports relatively stablely, and the relatively thin Opening pressure that can reduce outlet valve of edge.In addition, the second side 42 of valve block 4
Be equipped with elastic element locating slot 12, in elastic element supporting item can be set.
It should be noted that in the present embodiment, as shown in Figure 2, rotation force slot 9A2 is flat recess.And at other
Embodiment in, the rotation force slot 9A2 can also be arranged to cross recess, interior hexagonal, Nei Wujiao, interior corner, Triangle ID, outer six
The structure of the similar screw head such as angle, Wai Wujiao, outer corner, outer triangle and flower pattern.
In addition, in the present embodiment, elastic element 10 can be spring, shape can be cylindric or circular cone shape,
The cross section of spring wire can be designed to circular or rectangle.
Embodiment two
In the present embodiment, the outlet valve of adjustable Opening pressure of the present invention has essentially identical with embodiment one
Structure, therefore the present embodiment is repeated no more for the structure identical with embodiment one, emphasis description herein with embodiment one not
Same structure.
As shown in figure 5, pressure is additionally provided in the present embodiment adjusts fastener 11A.Pressure adjusts fastener 11A along pressure tune
The radial direction of part 9A is saved through housing 7, so that the tail end 11A1 that pressure adjusts fastener 11A is held out against pressure regulator 9A's
On side wall, after pressure regulator 9A adjusts the decrement of elastic element 10 to necessary requirement, to be adjusted by pressure tight
Effect is held out against between firmware 11A and pressure regulator 9A, it is ensured that the screw thread between pressure regulator 9A and housing 7 does not loosen,
So that it is guaranteed that the decrement of elastic element 10 remains unchanged.
Embodiment three
In the present embodiment, the outlet valve of adjustable Opening pressure of the present invention is with different from embodiment one and in fact
Apply the pressure regulator of example two.For other structures same as the previously described embodiments, details are not described herein.
As shown in fig. 6, in the present embodiment, pressure regulator 9B has the first portion 9B1 being arranged in housing 7 and is arranged on
Second portion 9B2 outside housing 7.Wherein, the side wall of first portion 9B1 has external screw thread 9B11, the internal thread spiral shell with housing 7
Line connects, and second portion 9B2 has force periphery 9B21.When user applies twisting resistance to force periphery 9B21, pressure
Power regulating part 9B can be rotated around own axes, so that opposite feeding occurs between pressure regulator 9B and housing 7, and then be adjusted
Save the decrement of elastic element 10.
In addition, it in the present embodiment, is additionally provided with pressure and adjusts fastener 11A, along the radial direction of pressure regulator 9B
Through pressure regulator 9B second portion 9B2 so that the tail end 11A1 that pressure adjusts fastener 11A is held out against on housing 7, with
Just after pressure regulator 9B adjusts the decrement of elastic element 10 to necessary requirement, by pressure adjust fastener 11A with
Effect is held out against between housing 7, it is ensured that the screw thread between pressure regulator 9B and housing 7 does not loosen, so that it is guaranteed that elastic element
10 decrement remains unchanged.
Example IV
In the present embodiment, the outlet valve of adjustable Opening pressure of the present invention has different from embodiment one, in fact
Apply the pressure regulator of example two and embodiment three.For other structures same as the previously described embodiments, details are not described herein.
As shown in fig. 7, in the present embodiment, pressure regulator 9C is with the first portion 9C1 being arranged in housing 7 and at it
The second portion 9C2 protruded on axial direction from housing 7.Wherein, the side wall of first portion 9C1 has external screw thread 9C11, with
The internal thread of housing 7 is threadedly coupled, and the side wall of second portion 9C2 is equipped with external screw thread 9C21, if female pressure is adjusted
Fastener 11B is sheathed on outside second portion 9C2, and is threadedly coupled with it, so as in pressure regulator 9C by elastic element 10
Decrement is adjusted to after necessary requirement, between the second portion 9C2 that fastener 11B and pressure regulator 9C is adjusted by pressure
Screw effect, it is ensured that the screw thread between pressure regulator 9C and housing 7 does not loosen, so that it is guaranteed that the decrement of elastic element 10 is protected
It holds constant.
In addition, in the present embodiment, the top surface of pressure regulator 9C also has rotation force slot 9C3, in order to pressure tune
The 9C applications of section part make the power that it is rotated around own axes, so as to adjust the opposite amount of feeding between pressure regulator 9C and housing 7,
So as to the decrement of regulation elasticity element 10.
It should be noted that in the present embodiment, flat recess, cross recess, interior may be employed in the structure of rotation force slot 9C3
The similar screw head such as hexagonal, Nei Wujiao, interior corner, Triangle ID, outer-hexagonal, Wai Wujiao, outer corner, outer triangle and flower pattern
Structure.
Embodiment five
Unlike the various embodiments described above, in the present embodiment, as shown in figure 8, the elastic element locating slot 12 of valve block 4
It is interior to be equipped with yi word pattern elastic element supporting item 13A, when elastic element is placed in elastic element locating slot 12, yi word pattern elasticity
Supporting device 13A can play a supporting role to elastic element, so as to which the elastic element for preventing material harder is relatively soft by material
Valve block 4 be crushed.
Embodiment six
Unlike embodiment five, in the present embodiment, as shown in figure 9, being set in the elastic element locating slot 12 of valve block 4
There is U-shaped elastic element supporting item 13B, when elastic element is placed in elastic element locating slot 12, U-shaped elastic element supporting item
13B can play a supporting role to elastic element, so as to which the elastic element for preventing material harder presses the relatively soft valve block 4 of material
It bursts.In addition, it can also be seen that the U-shaped elastic element supporting item 13B is close to the outer of the vertical section at the middle part of valve block 4 from Fig. 9
Side wall is inclined towards the middle part of valve block 4 from top to bottom, and this structure can tightly embrace valve block intermediate lands, and then make
Guide rod among valve block is not easily to fall off, and ensures that its axis is vertical with valve block sealing surface.
Embodiment seven
Unlike embodiment five and embodiment six, in the present embodiment, as shown in Figure 10, valve block 18 is no longer therefrom
Portion is to the gradual thinning structure of edge, but middle part and edge have basically identical thickness.In addition, valve block 18, guide rod 5 with
And the elastic element supporting item 13C of L-type is integrated by rubber vulcanization process, forms a global facility.
In a further embodiment, elastic member can also be opened up on the valve block 4 as shown in embodiment five and embodiment six
Part locating slot 12, and L-type elastic element supporting item is equipped in elastic element locating slot 12.
It should be noted that in the above embodiments, engineering plastics, light metal material may be employed in elastic element supporting item
The hard materials such as material are made.
It can be seen that the outlet valve of adjustable Opening pressure of the present invention passes through pressure regulator regulation elasticity element
Decrement, so as to adjust the Opening pressure of outlet valve, make adjustable Opening pressure of the present invention outlet valve have more
Good user experience effect, and it is safe and reliable, it can be widely applied to the fields such as air respiratorresuscitator.
It should be noted that prior art part is not limited to given by present specification in protection scope of the present invention
Embodiment, all prior arts not contradicted with the solution of the present invention, including but not limited to first patent document, formerly
Public publication, formerly openly use etc., it can all include protection scope of the present invention.
In addition, combination recorded in the combination of each technical characteristic and unlimited this case claim in this case or
It is the combination recorded in specific embodiment, all technical characteristics that this case is recorded can be freely combined in any way
Or combine, unless generating contradiction between each other.
It is also to be noted that embodiment enumerated above is only specific embodiments of the present invention.The obvious present invention is not
Above example is confined to, the similar variation or deformation made therewith are that those skilled in the art can be from present disclosure
It immediately arrives at or is easy to what is just associated, be within the scope of protection of the invention.
Claims (12)
1. a kind of outlet valve of adjustable Opening pressure, including：
Valve seat, it is interior to be equipped with pilot hole, it is equipped with inlet channel in the valve seat；
Valve block is fixedly connected with guide rod, and the guide rod correspondence is arranged in the pilot hole, and the valve block has first
Side and the second side opposite with first side, the inlet channel are located at the one side of first side；When first side is subject to
Pressure be more than second side be subject to pressure when, the valve block leaves the valve seat to form expiration passageway；Work as second side
When the pressure being subject to is more than the pressure that first side is subject to, the valve block fits closely the valve seat；
Housing is connected with the valve seat, and covers at the valve block periphery, and the second side of valve block is located in the housing
One side is equipped with the outlet passageway being in communication with the outside；
It is characterized in that, the outlet valve further includes：
Pressure regulator is threadedly coupled with the housing；
Elastic element is arranged between the pressure regulator and the second side of valve block；
Wherein, the pressure regulator is connected through a screw thread the opposite amount of feeding adjusted therebetween with the housing, to adjust
The decrement of elastic element.
2. the outlet valve of adjustable Opening pressure as described in claim 1, which is characterized in that the pressure regulator is arranged on institute
It states in housing, the side wall of pressure regulator has external screw thread, is threadedly coupled with the internal thread with housing, the pressure regulator
Top surface has rotation force slot, in order to apply the power that it is made to be rotated around own axes to pressure regulator.
3. the outlet valve of adjustable Opening pressure as claimed in claim 2, which is characterized in that further include：Pressure adjusts fastening
Part, along the radial direction of pressure regulator through the housing, so that the tail end that pressure adjusts fastener is held out against in pressure tune
On the side wall for saving part.
4. the outlet valve of adjustable Opening pressure as described in claim 1, which is characterized in that the pressure regulator, which has, to be set
In the in vivo first portion of the shell and the second portion outside housing, the side wall of the first portion has external screw thread, with
It is threadedly coupled with the internal thread of housing, the second portion has force periphery, in order to make it to pressure regulator application
The power rotated around own axes.
5. the outlet valve of adjustable Opening pressure as claimed in claim 4, which is characterized in that further include：Pressure adjusts fastening
Part passes through the second portion of pressure regulator so that pressure adjusts the tail end top of fastener along the radial direction of pressure regulator
Tightly on housing.
6. the outlet valve of adjustable Opening pressure as described in claim 1, which is characterized in that the pressure regulator, which has, to be set
In the in vivo first portion of the shell, the side wall of the first portion is had external screw thread, is threadedly coupled with the internal thread with housing,
The top surface of the pressure regulator has rotation force slot, in order to make what it was rotated around own axes to pressure regulator application
Power.
7. the outlet valve of adjustable Opening pressure as claimed in claim 6, which is characterized in that the pressure regulator also has
The second portion protruded in its axial direction from housing, the side wall of the second portion is equipped with external screw thread, equipped with internal thread
Pressure adjust fastener be threadedly coupled with the second portion.
8. the outlet valve of the adjustable Opening pressure as described in any one in claim 1-7, which is characterized in that the valve block
Second side be equipped with elastic element locating slot, yi word pattern or L-type or U-shaped elasticity are equipped in the elastic element locating slot
Supporting device, the elastic element supporting item are arranged on the lower section of elastic element.
9. the outlet valve of the adjustable Opening pressure as described in any one in claim 1-7, which is characterized in that the valve block
It is arranged to structure gradually thinning from middle part to edge.
10. the outlet valve of the adjustable Opening pressure as described in any one in claim 1-7, which is characterized in that the valve
Raised annular convex platform on the end face that seat is contacted with valve block, when the pressure that second side is subject to is more than what first side was subject to
During pressure, the top surface of the annular convex platform fits closely the valve block, and the cross section of the annular convex platform is tapered, the annular
The top surface of boss is arc-shaped.
11. the outlet valve of adjustable Opening pressure as claimed in claim 10, which is characterized in that the valve seat is contacted with valve block
End face on, the one side that is located in the annular convex platform valve block edge be additionally provided with annular groove, the cross section of the annular groove is V-shaped
It is or inverted trapezoidal.
12. the outlet valve of the adjustable Opening pressure as described in any one in claim 1-7, which is characterized in that further include
Pressure adjusts locating part, is installed in housing, below pressure regulator and above valve block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484118.6A CN108057188A (en) | 2017-12-29 | 2017-12-29 | A kind of outlet valve of adjustable Opening pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484118.6A CN108057188A (en) | 2017-12-29 | 2017-12-29 | A kind of outlet valve of adjustable Opening pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108057188A true CN108057188A (en) | 2018-05-22 |
Family
ID=62140918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711484118.6A Pending CN108057188A (en) | 2017-12-29 | 2017-12-29 | A kind of outlet valve of adjustable Opening pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108057188A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758038A (en) * | 2018-08-17 | 2018-11-06 | 上海宝亚安全装备股份有限公司 | A kind of respirator concealed safety valve gear |
| CN110617350A (en) * | 2019-10-23 | 2019-12-27 | 上海诺科泵业有限公司 | Straight-through type adjustable one-way valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354520A (en) * | 1981-04-22 | 1982-10-19 | Reactor Services International, Inc. | Pressure/demand exhalation valve |
| CN102345761A (en) * | 2010-08-03 | 2012-02-08 | 上海首科环保科技有限公司 | Automatic exhaust valve |
| CN102380150A (en) * | 2011-09-28 | 2012-03-21 | 于邦仲 | Pneumatic gas-controlled breathing machine |
| CN205155275U (en) * | 2015-11-12 | 2016-04-13 | 山西新华化工有限责任公司 | Diaphragm formula governing valve and compressed air formula mask |
| CN205215979U (en) * | 2015-11-02 | 2016-05-11 | 北京亚都环保科技有限公司 | A one -way expiratory valve and gauze mask for gauze mask |
-
2017
- 2017-12-29 CN CN201711484118.6A patent/CN108057188A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354520A (en) * | 1981-04-22 | 1982-10-19 | Reactor Services International, Inc. | Pressure/demand exhalation valve |
| CN102345761A (en) * | 2010-08-03 | 2012-02-08 | 上海首科环保科技有限公司 | Automatic exhaust valve |
| CN102380150A (en) * | 2011-09-28 | 2012-03-21 | 于邦仲 | Pneumatic gas-controlled breathing machine |
| CN205215979U (en) * | 2015-11-02 | 2016-05-11 | 北京亚都环保科技有限公司 | A one -way expiratory valve and gauze mask for gauze mask |
| CN205155275U (en) * | 2015-11-12 | 2016-04-13 | 山西新华化工有限责任公司 | Diaphragm formula governing valve and compressed air formula mask |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758038A (en) * | 2018-08-17 | 2018-11-06 | 上海宝亚安全装备股份有限公司 | A kind of respirator concealed safety valve gear |
| CN110617350A (en) * | 2019-10-23 | 2019-12-27 | 上海诺科泵业有限公司 | Straight-through type adjustable one-way valve |
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| PB01 | Publication | ||
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Application publication date: 20180522 |