CN206290728U - A kind of sealing structure of gas ratio valve - Google Patents
A kind of sealing structure of gas ratio valve Download PDFInfo
- Publication number
- CN206290728U CN206290728U CN201621461085.4U CN201621461085U CN206290728U CN 206290728 U CN206290728 U CN 206290728U CN 201621461085 U CN201621461085 U CN 201621461085U CN 206290728 U CN206290728 U CN 206290728U
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- China
- Prior art keywords
- sealing ring
- gas ratio
- sealing
- inwall
- bulge loop
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Abstract
The utility model provides a kind of sealing structure of gas ratio valve, including valve port and piston, the valve port edge is provided with sealing ring, and the piston ridge is provided with sealing ring, the sealing ring upper surface is provided with bulge loop, and the bulge loop inwall is connected with the sealing ring inwall；The sealing ring outer wall is made up of with arc surface below straight, and the straight following lower end is connected with the upper end of the arc surface.In the utility model, sealing ring outer wall is made up of with arc surface below straight, reduces the contact area of sealing ring and sealing ring, and under same pressure, sealing ring is bigger to the pressure of sealing ring, makes sealing property more preferable；The phenomenon that sticks together is avoided, the use of gas ratio valve is not influenceed；Bulge loop deform when outwards offset, compression degree is smaller, after long-time use can resilience, improve service life.
Description
Technical field
The utility model is related to technical field of sealing technology, more particularly to a kind of sealing structure of gas ratio valve.
Background technology
Gas ratio valve is the core control part of gas utensil, is adjusted and voltage stabilizing function by the pressure of gas ratio valve,
Can in the case of fuel gas inlet pressure oscillation stable output pressure.Meanwhile, gas ratio valve also has break-make fuel gas pipeline
Effect, can disconnect blast tube in the state of gas utensil closing, prevent the flowing and leakage of combustion gas, protection user's
Life safety.
As shown in figure 1, being the sealing structure of existing gas ratio valve.Gas ratio valve is provided with valve port 10 and piston 20,
Piston 20 can move up and down, and valve port 10 is opened or is closed.Wherein, valve port edge is provided with sealing ring 30, and piston ridge sets
Sealing ring 40 is equipped with, sealing ring 40 is pushed fits with sealing ring 30, reaches the effect of sealing.
The sealing structure of existing gas ratio valve, sealing ring is larger with the contact area of sealing ring, causes between both
Pressure it is smaller, thus sealing property is weaker.Also, prolonged bump contact, is easily caused rubber product face depression, makes
Into sealing ring and sealing ring adhesion, influence is used.Meanwhile, sealing ring is big with the compression degree of sealing ring, after compressing for a long time not
Energy resilience, influence is used.
Utility model content
The technical problems to be solved in the utility model is according to above-mentioned the deficiencies in the prior art, there is provided a kind of sealing property
Good, the phenomenon that do not stick together, the sealing structure of the gas ratio valve of long service life.
The technical solution of the utility model is as follows：
A kind of sealing structure of gas ratio valve, including valve port and piston, the valve port edge are provided with sealing ring, described
Piston ridge is provided with sealing ring, and the sealing ring upper surface is provided with bulge loop, the bulge loop inwall and the sealing ring inwall
It is connected；The sealing ring outer wall is made up of with arc surface below straight, the upper end of the straight following lower end and the arc surface
Connection.
Further, the inwall of the bulge loop and the corner of upper surface are right angle.
Further, the sealing ring inwall top edge is provided with inwardly projecting chuck, the chuck lower surface and institute
State and be adjacent to above valve port.
Further, the inwall of the sealing ring and the corner of upper surface are arc angling.
Compared with prior art, the utility model has the advantages that：（1）Sealing ring outer wall is by straight below and round
Cambered surface is constituted, and reduces the contact area of sealing ring and sealing ring, under same pressure, sealing ring to the pressure of sealing ring more
Greatly, make sealing property more preferable；（2）The phenomenon that sticks together is avoided, the use of gas ratio valve is not influenceed；（3）When bulge loop deforms
Outwards skew, compression degree is smaller, after long-time use can resilience, improve service life；（4）Chuck is provided with, is sealed
Circle can more be fixedly mounted in valve port.
Brief description of the drawings
Fig. 1 is the domatic figure of sealing structure of existing gas ratio valve in background technology.
Fig. 2 is the profile of the utility model embodiment.
Fig. 3 is the stereogram of the utility model embodiment sealing ring and sealing ring.
Reference
10th, valve port, 20, piston, 30, sealing ring, 31, bulge loop, 32, chuck；
40th, sealing ring, 41, it is straight below, 42, arc surface, 43, arc angling.
Specific embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
As Figure 2-3, the embodiment that the utility model is provided, a kind of sealing structure of gas ratio valve, including valve port
10 and piston 20, the edge of the valve port 10 is provided with sealing ring 30, and the edge of the piston 20 is provided with sealing ring 40.
The upper surface of the sealing ring 30 is provided with bulge loop 31, and the inwall of the bulge loop 31 is connected with the inwall of the sealing ring 30
Connect；The outer wall of the sealing ring 40 is made up of straight following 41 and arc surface 42, straight 41 lower end and the arc surface 42 below
Upper end connection.The inwall of the bulge loop 31 is right angle with the corner of upper surface.
When using, piston 20 is pushed with rotary packing ring 40, the arc surface 42 of sealing ring 40 and the right angle contact of bulge loop 31, two
Contact area between person is smaller, and at the same pressure, the pressure that it is produced is larger, and then improves sealing ring 40 and sealing ring
30 sealing property.Also, the phenomenon that sticks together is avoided, the use of gas ratio valve is not influenceed.Meanwhile, when bulge loop 31 deforms
Outwards skew, compression degree is smaller, after long-time use can resilience, improve service life
The inwall top edge of the sealing ring 30 is provided with inwardly projecting chuck 32, the lower surface of the chuck 32 and the valve
Mouth 10 is adjacent to above.Wherein, sealing ring 30 can more be fixedly mounted in valve port 10.
The inwall of the sealing ring 40 is arc angling 43 with the corner of upper surface.Wherein, arc angling 43 can increase
Contact area between sealing ring 40 and piston 20, reduces pressure of the piston 20 to sealing ring 40, it is to avoid piston 20 is to sealing ring
40 cause to damage；Also, arc angling 43 preferably can go out stress spread, it is to avoid stress is excessively concentrated, sealing is caused
Ring 40 is torn.
Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly
Interest field, therefore equivalent variations made according to the utility model claim still belong to the scope that the utility model is covered.
Claims (4)
1. a kind of sealing structure of gas ratio valve, including valve port and piston, the valve port edge is provided with sealing ring, the work
Plug edge is provided with sealing ring, it is characterised in that：The sealing ring upper surface is provided with bulge loop, and the bulge loop inwall is close with described
Seal inwall is connected；The sealing ring outer wall is made up of with arc surface below straight, the straight following lower end and the circular arc
The upper end connection in face.
2. a kind of sealing structure of gas ratio valve according to claim 1, it is characterised in that：The inwall of the bulge loop with it is upper
The corner on surface is right angle.
3. a kind of sealing structure of gas ratio valve according to claim 1, it is characterised in that：The sealing ring inwall top
Edge is provided with inwardly projecting chuck, is adjacent to above the chuck lower surface and the valve port.
4. a kind of sealing structure of gas ratio valve according to claim 1, it is characterised in that：The inwall of the sealing ring with
The corner of upper surface is arc angling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461085.4U CN206290728U (en) | 2016-12-29 | 2016-12-29 | A kind of sealing structure of gas ratio valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461085.4U CN206290728U (en) | 2016-12-29 | 2016-12-29 | A kind of sealing structure of gas ratio valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290728U true CN206290728U (en) | 2017-06-30 |
Family
ID=59155185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621461085.4U Active CN206290728U (en) | 2016-12-29 | 2016-12-29 | A kind of sealing structure of gas ratio valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290728U (en) |
-
2016
- 2016-12-29 CN CN201621461085.4U patent/CN206290728U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |