CN208579006U - It is two-way can conducting valve - Google Patents
It is two-way can conducting valve Download PDFInfo
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- CN208579006U CN208579006U CN201820979520.5U CN201820979520U CN208579006U CN 208579006 U CN208579006 U CN 208579006U CN 201820979520 U CN201820979520 U CN 201820979520U CN 208579006 U CN208579006 U CN 208579006U
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- floating drum
- elastic component
- pressure
- venthole
- valve seat
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Abstract
The utility model relates to it is a kind of it is two-way can conducting valve, including valve seat has air flue chamber in valve seat, and the upper and lower end of air flue chamber has been respectively communicated with the first venthole, the second venthole；The intracavitary core assembly being installed with for controlling the opening and closing of air flue chamber of air flue；Core assembly includes floating drum, valve body, first pressure elastic component and second pressure elastic component；Air flue is intracavitary to be set to abut downwards for floating drum and forms sealing face adapted in sealing contact；Floating drum has accommodating cavity, and floating drum is open with upper and lower end；Valve body is located in accommodating cavity；First pressure elastic component upper end opposite valve seat position is fixed, and first pressure elastic component lower end acts on floating drum downwards；Second pressure elastic component lower end opposite valve seat position is fixed, on the upward Operating valve body in second pressure elastic component upper end；The pressing force of first pressure elastic component is greater than the pressing force of second pressure elastic component；Whereby, when meeting positive pressure in urea box body when pressure release, negative pressure air inlet requirement, effectively balance urea body inside and outside air pressure and overturning leakage.
Description
Technical field
The utility model relates to a kind of urea casing field, refer in particular to it is a kind of it is two-way can conducting valve.
Background technique
Breather valve currently used for urea cabinet is largely normally opened conducting or individual event conducting structure, is unable to satisfy positive and negative
The balance of air pressure in urea box body is realized when pressure.For example, normally opened breather valve, the pump housing of urea cabinet are stopping working on the market
When, liquid in pump housing pipeline can blowback return in urea box body, liquid easily sprays urea box leads to liquid leakage in vitro.
Therefore, in the utility model patent application, applicant studied intensively it is a kind of it is two-way can conducting valve solve
State problem.
Utility model content
For the utility model for deficiency present in the above-mentioned prior art, main purpose is to provide that one kind is two-way to be connected
Valve, when meeting positive pressure in urea box body when pressure release, negative pressure air inlet requirement, effectively balance and urea body inside and outside air pressure and turn over
Turn leakage.
To realize above-mentioned purpose, the utility model adopts the following technical scheme:
It is a kind of it is two-way can conducting valve, include valve seat, there is air flue chamber in the valve seat, the upper and lower end of air flue chamber is distinguished
It is communicated with corresponding first venthole, the second venthole；In the air flue of valve seat it is intracavitary be installed with for control air flue chamber opening and closing
Core assembly；
The core assembly includes floating drum, valve body, first pressure elastic component and second pressure elastic component；The air flue chamber
It is inside provided with to abut downwards for floating drum and forms sealing face adapted in sealing contact；There is accommodating cavity, the floating drum in the floating drum
With the upper and lower end opening for penetrating through accommodating cavity respectively；The valve body is located in accommodating cavity；The upper end of the first pressure elastic component
Opposite valve seat position is fixed, and the lower end of the first pressure elastic component acts on floating drum downwards；The second pressure elastic component
Lower end opposite valve seat position fix, the upper end of the second pressure elastic component acts on valve body upwards；The first pressure
The pressing force of elastic component is greater than the pressing force of second pressure elastic component；
Under natural conditions, floating drum keeps connecing with the sealing of sealing face adapted under the down force of first pressure elastic component
Touching, valve body are kept with the contact of the inner surface of accommodating cavity under the upward active force of second pressure elastic component to seal the upper of floating drum
End opening；At this point, core assembly closes air flue chamber, the first venthole, the second venthole are not connected to mutually；Under negative pressure state, the
The air pressure of side where the air pressure of side is greater than the second venthole where one venthole；Valve body is made by the air pressure of side where the first venthole
With and to bottom offset, the upper end opening opening of floating drum, the first venthole, the second venthole are interconnected, second pressure elastic component
In further downward compressive state；
Under barotropic state, the air pressure of side where the air pressure of side is greater than the first venthole where the second venthole；Floating drum is by
The gas pressure of side where two ventholes and shift up, the upper end opening of floating drum is opened far from valve body, the first venthole,
Second venthole is interconnected, and first pressure elastic component is in compressive state further up.
As a preferred embodiment, it is provided with gasket seal in the sealing face adapted, the floating drum is sealed to be pressed on
On gasket seal.
As a preferred embodiment, the intracavitary annular groove having for placing gasket seal of the air flue, the annular groove
Inner bottom surface formed aforementioned seal face adapted.
As a preferred embodiment, it is convexly equipped on the outer wall of the floating drum several for preventing floating drum from acting in liquid tension
Lower and air flue chamber pastes dead muscle position.
As a preferred embodiment, when the floating drum upper end is offered for avoiding floating drum from being bonded with the inner wall of air flue chamber without
The auxiliary exhaust slot of method exhaust.
As a preferred embodiment, the valve body is in spherical, and the lower ending opening of floating drum has inner arc surface, the spherical surface of valve body
Linear sealing is formed with inner arc surface.
As a preferred embodiment, the upper end of the floating drum corresponds to upper end opening periphery and is integrally up extended with the first installation
Protrusion, the lower end of aforementioned first pressure elastic component are arranged the periphery for being positioned at the first installation protrusion；The inner wall pair of the air flue chamber
The second venthole periphery is answered integrally up to be extended with the second installation protrusion, the upper end of aforementioned second pressure elastic component, which is arranged, to be positioned at
The periphery of second installation protrusion.
As a preferred embodiment, the valve seat includes valve seat body and valve seat upper cover, and the valve seat upper cover passes through card
Button mode is assembled in valve seat body, and, pass through sealing ring between the inner wall of the valve seat upper cover and the outer wall of valve seat body
Axial seal.
As a preferred embodiment, there is the valve seat screw thread for connecting with urea cabinet to screw portion.
As a preferred embodiment, first venthole is set on the side wall of valve seat, the axis of first venthole
Axis of the line perpendicular to air flue chamber.
The utility model has clear advantage and beneficial effect compared with prior art, specifically:
(1), it is opened and closed by air flue chamber in core assembly control valve seat, air inlet is wanted when pressure release, negative pressure when meeting positive pressure
It asks, effectively balances urea body inside and outside air pressure and overturning leakage；
(2), by sealing ring and gasket seal, on the one hand guarantee floating drum in the intracavitary sealing effect abutted downwards of air flue,
On the other hand, sealing effect in valve seat is improved；Especially valve seat body and valve seat upper cover are cooperated using snap, meanwhile, valve
By sealing ring axial seal between the inner wall of seat upper cover and the outer wall of valve seat body, so that valve seat upper cover can any angle installation
Without influencing sealing effect, convenience and reliability are improved；
(3), valve design is in spherical, the inner arc surface formation linear sealing of the lower ending opening of spherical surface and floating drum, sealing effect
Fruit is preferable；
(4), perpendicular to the axis of air flue chamber, as non-bypass structure avoids in positive pressure the axis of the first through hole of valve seat
When urea box body in liquid or gas be directly impinging valve body and floating drum；
(5), it is designed by the muscle position of floating drum, prevents floating drum dead with air flue chamber patch under liquid tension effect, enhance floating drum
Practicability；
(6), auxiliary exhaust slot is offered by floating drum upper end, can not be arranged when floating drum being avoided to be bonded with the inner wall of air flue chamber
Gas.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair
It is described in detail.
Detailed description of the invention
Fig. 1 is the three-dimensional assembling structure schematic diagram of the embodiment of the utility model；
Fig. 2 is the decomposition texture schematic diagram of the embodiment of the utility model；
Fig. 3 is the cross-sectional view of the embodiment of the utility model (display is connected to urea cabinet)；
Fig. 4 is partial enlargement diagram at A in Fig. 3；
Fig. 5 is the spar structures schematic diagram of the embodiment of the utility model.
Drawing reference numeral explanation:
10, valve seat 101, the first venthole
102, the second venthole 103, sealing face adapted
104, the second installation protrusion 105, screw thread screw portion
11, valve seat body 12, valve seat upper cover
20, floating drum 201, accommodating cavity
202, upper end opening 21, muscle position
22, auxiliary exhaust slot 23, first installs protrusion
30, valve body 41, first pressure elastic component
42, second pressure elastic component 50, gasket seal
60, sealing ring 70, lengthening bend pipe
71, steel pipe circle 80, urea cabinet.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing.
As shown in Figures 1 to 5, it is a kind of it is two-way can conducting valve be used for urea cabinet 80 in the present embodiment, including
Have a valve seat 10, there is air flue chamber in the valve seat 10, the upper and lower end of air flue chamber be respectively communicated with corresponding first venthole 101,
Second venthole 102；In the intracavitary core assembly being installed with for controlling the opening and closing of air flue chamber of the air flue of valve seat 10, in which:
The core assembly includes floating drum 20, valve body 30, first pressure elastic component 41 and second pressure elastic component 42；Institute
It states intracavitary be provided with of air flue and forms sealing face adapted 103 in sealing contact for downward abut of floating drum 20；In the present embodiment, described
It is provided with gasket seal 50 in sealing face adapted 103, the floating drum 20 is sealed to be pressed on gasket seal 50；The air flue chamber
The inner bottom surface of the interior annular groove having for placing gasket seal 50, the annular groove forms aforementioned seal face adapted 103.
There is accommodating cavity 201, there is the floating drum 20 upper and lower end for penetrating through accommodating cavity 201 respectively to open in the floating drum 20
Mouthful；Preferably, be convexly equipped on the outer wall of the floating drum 20 it is several for prevent floating drum 20 liquid tension effect under with air flue chamber
Paste dead muscle position 21；And 20 upper end of floating drum is offered for avoiding floating drum 20 can not when being bonded with the inner wall of air flue chamber
The auxiliary exhaust slot 22 of exhaust.
The valve body 30 is located in accommodating cavity 201；10 position of upper end opposite valve seat of the first pressure elastic component 41 is solid
Fixed, the lower end of the first pressure elastic component 41 acts on downwards on floating drum 20；The lower end phase of the second pressure elastic component 42
10 position of valve seat is fixed, the upper end of the second pressure elastic component 42 is acted on upwards on valve body 30；The first pressure bullet
Property part 41 pressing force be greater than second pressure elastic component 42 pressing force；
In the present embodiment, the upper end of the floating drum 20 corresponds to 202 periphery of upper end opening and is integrally up extended with the first peace
Protrusion 23 is filled, the lower end of aforementioned first pressure elastic component 41 is arranged the periphery for being positioned at the first installation protrusion 23；The air flue chamber
Corresponding second venthole, 102 periphery of inner wall be integrally up extended with the second installation protrusion 104, aforementioned second pressure elastic component 42
Upper end be arranged the periphery for being positioned at the second installation protrusion 104.
Under natural conditions, floating drum 20 is kept and sealing face adapted 103 under the down force of first pressure elastic component 41
It is in sealing contact, valve body 30 keeps under the upward active force of second pressure elastic component 42 connecing with the inner surface of accommodating cavity 201
It touches to seal the upper end opening 202 of floating drum 20；For the valve body 30 in spherical, the lower ending opening of floating drum 20 has inner arc surface, valve
The spherical surface and inner arc surface of body 30 form linear sealing, it is preferable that the valve body 30 is using foaming or steel ball.At this point, core assembly
Air flue chamber is closed, the first venthole 101, the second venthole 102 are not connected to mutually；Under negative pressure state, where the first venthole 101
The air pressure of side is greater than the air pressure of 102 place side of the second venthole；Valve body 30 by 101 place side of the first venthole gas pressure and
To bottom offset, the upper end opening 202 of floating drum 20 is opened, and the first venthole 101, the second venthole 102 are interconnected, second pressure
Elastic component 42 is in further downward compressive state；
Under barotropic state, the air pressure of 102 place side of the second venthole is greater than the air pressure of 101 place side of the first venthole；It is floating
Cylinder 20 by 102 place side of the second venthole gas pressure and shift up, the upper end opening 202 of floating drum 20 far from valve body 30 and
It is opened, the first venthole 101, the second venthole 102 are interconnected, and first pressure elastic component 41 is in be compressed further up
State.
In the present embodiment, the first pressure elastic component 41 and second pressure elastic component 42 are all made of compression spring；Institute
Stating valve seat 10 includes valve seat body 11 and valve seat upper cover 12, and the valve seat upper cover 12 is assembled in valve seat body by snap
On 11, and, pass through 60 axial seal of sealing ring between the inner wall of the valve seat upper cover 12 and the outer wall of valve seat body 11.It is described
There is valve seat 10 screw thread for connecting with urea cabinet 80 to screw portion 105, it should be noted that in order to improve valve seat 10 and urine
The air-tightness of plain cabinet 80, the valve seat body are connect by sealing ring 60 with urea cabinet 80.First venthole 101 is set
It is calculated as non-bypass structure, liquid or gas in positive pressure in urea cabinet 80 is avoided to be directly impinging valve body 30 and floating drum 20,
Reach pressure release effect, specifically: first venthole 101 is set on the side wall of valve seat 10, first venthole 101
Axis perpendicular to air flue chamber axis.Preferably, aforementioned threads screw portion 105 and are set in valve seat body 11, and aforementioned first
Venthole 101 is set in valve seat upper cover 12.It further include lengthening bend pipe 70, described one end for lengthening bend pipe 70 is in communication with the outside,
The other end for lengthening bend pipe 70 is connected to the first venthole 101 by steel pipe circle 71.
It sketches the assembling process of the utility model: valve seat body 11 being screwed with urea cabinet 60 using screw thread, and is connected
Place reaches good sealing effect using sealing ring, and gasket seal 40 assembles in place, then pre-installs second pressure elastic component 42, valve
Body 30, floating drum 20 and first pressure elastic component 41, the axially mounted sealing ring 60 of valve seat body 11 finally fasten valve by assembly orientation
Seat upper cover 12.
The utility model designing points are, are mainly:
(1), it is opened and closed by air flue chamber in core assembly control valve seat, air inlet is wanted when pressure release, negative pressure when meeting positive pressure
It asks, effectively balances urea body inside and outside air pressure and overturning leakage；
(2), by sealing ring and gasket seal, on the one hand guarantee floating drum in the intracavitary sealing effect abutted downwards of air flue,
On the other hand, sealing effect in valve seat is improved；Especially valve seat body and valve seat upper cover are cooperated using snap, meanwhile, valve
By sealing ring axial seal between the inner wall of seat upper cover and the outer wall of valve seat body, so that valve seat upper cover can any angle installation
Without influencing sealing effect, convenience and reliability are improved；
(3), valve design is in spherical, the inner arc surface formation linear sealing of the lower ending opening of spherical surface and floating drum, sealing effect
Fruit is preferable；
(4), perpendicular to the axis of air flue chamber, as non-bypass structure avoids in positive pressure the axis of the first through hole of valve seat
When urea box body in liquid or gas be directly impinging valve body and floating drum；
(5), it is designed by the muscle position of floating drum, prevents floating drum dead with air flue chamber patch under liquid tension effect, enhance floating drum
Practicability；
(6), auxiliary exhaust slot is offered by floating drum upper end, can not be arranged when floating drum being avoided to be bonded with the inner wall of air flue chamber
Gas.
The above is only the utility model preferred embodiment, not appoints to the technical scope of the utility model
What is limited, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent variations
With modification, it is still within the scope of the technical solutions of the present invention.
Claims (10)
1. it is a kind of it is two-way can conducting valve, it is characterised in that: include valve seat, there is air flue chamber in the valve seat, air flue chamber it is upper,
Lower end has been respectively communicated with corresponding first venthole, the second venthole；It is installed with for controlling air flue in the air flue of valve seat is intracavitary
The core assembly of chamber opening and closing；
The core assembly includes floating drum, valve body, first pressure elastic component and second pressure elastic component；The air flue is intracavitary to be set
It is equipped with to abut downwards for floating drum and forms sealing face adapted in sealing contact；There is accommodating cavity, the floating drum has in the floating drum
The upper and lower end opening of accommodating cavity is penetrated through respectively；The valve body is located in accommodating cavity；The upper end of the first pressure elastic component is opposite
Seating position is fixed, and the lower end of the first pressure elastic component acts on floating drum downwards；Under the second pressure elastic component
End opposite valve seat position is fixed, and the upper end of the second pressure elastic component acts on valve body upwards；The first pressure elasticity
The pressing force of part is greater than the pressing force of second pressure elastic component；
Under natural conditions, floating drum keeps in sealing contact with sealing face adapted under the down force of first pressure elastic component,
Valve body keeps the upper end that floating drum is sealed with the contact of the inner surface of accommodating cavity under the upward active force of second pressure elastic component
Opening；At this point, core assembly closes air flue chamber, the first venthole, the second venthole are not connected to mutually；Under negative pressure state, first
The air pressure of side where the air pressure of side is greater than the second venthole where venthole；Gas pressure of the valve body by side where the first venthole
And to bottom offset, the upper end opening of floating drum is opened, and the first venthole, the second venthole are interconnected, at second pressure elastic component
In further downward compressive state；
Under barotropic state, the air pressure of side where the air pressure of side is greater than the first venthole where the second venthole；Floating drum is logical by second
The gas pressure of side where stomata and shift up, the upper end opening of floating drum is opened far from valve body, the first venthole, second
Venthole is interconnected, and first pressure elastic component is in compressive state further up.
2. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: be provided with gasket in the sealing face adapted
Piece, the floating drum is sealed to be pressed on gasket seal.
3. it is according to claim 2 it is two-way can conducting valve, it is characterised in that: the air flue is intracavitary to be had for placing sealing
The inner bottom surface of the annular groove of gasket, the annular groove forms aforementioned seal face adapted.
4. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: several use are convexly equipped on the outer wall of the floating drum
In preventing floating drum from air flue chamber pasting dead muscle position under liquid tension effect.
5. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: the floating drum upper end is offered for avoiding floating
The auxiliary exhaust slot that cylinder can not be vented when being bonded with the inner wall of air flue chamber.
6. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: the valve body in spherical, open by the lower end of floating drum
Mouth has inner arc surface, and the spherical surface and inner arc surface of valve body form linear sealing.
7. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: the upper end of the floating drum corresponds to outside upper end opening
Zhou Yiti is up extended with the first installation protrusion, and the lower end of aforementioned first pressure elastic component, which is arranged, is positioned at the first installation protrusion
Periphery；The corresponding second venthole periphery of the inner wall of the air flue chamber is integrally up extended with the second installation protrusion, aforementioned second pressure
The upper end of power elastic component is arranged the periphery for being positioned at the second installation protrusion.
8. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: the valve seat includes valve seat body and valve seat
Upper cover, the valve seat upper cover are assembled in valve seat body by snap, and, the inner wall of the valve seat upper cover and valve seat master
Pass through sealing ring axial seal between the outer wall of body.
9. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: the valve seat has for connecting with urea cabinet
The screw thread connect screws portion.
10. it is according to claim 1 it is two-way can conducting valve, it is characterised in that: first venthole is set to valve seat
On side wall, the axis of the axis of first venthole perpendicular to air flue chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820979520.5U CN208579006U (en) | 2018-06-25 | 2018-06-25 | It is two-way can conducting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820979520.5U CN208579006U (en) | 2018-06-25 | 2018-06-25 | It is two-way can conducting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208579006U true CN208579006U (en) | 2019-03-05 |
Family
ID=65509323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820979520.5U Active CN208579006U (en) | 2018-06-25 | 2018-06-25 | It is two-way can conducting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208579006U (en) |
-
2018
- 2018-06-25 CN CN201820979520.5U patent/CN208579006U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 101, No. 1, East Ring 3rd Street, Jitiagang, Huangjiang Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Zhengyang Sensor Technology Co.,Ltd. Address before: No.1, Donghuan 3rd Street, jitigang village, Huangjiang Town, Dongguan City, Guangdong Province 523000 Patentee before: DONGGUAN ZHENGYANG ELECTRONIC MECHANICAL Co.,Ltd. |