CN206802553U - A kind of double-layer seal attachment structure of car air-conditioner pipeline - Google Patents
A kind of double-layer seal attachment structure of car air-conditioner pipeline Download PDFInfo
- Publication number
- CN206802553U CN206802553U CN201720327896.3U CN201720327896U CN206802553U CN 206802553 U CN206802553 U CN 206802553U CN 201720327896 U CN201720327896 U CN 201720327896U CN 206802553 U CN206802553 U CN 206802553U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- sealant
- expansion valve
- pipeline
- sealing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of double-layer seal attachment structure of car air-conditioner pipeline, including air inlet pipeline, sealing ring, expansion valve, described sealing ring is placed on the end of air inlet pipeline, expansion valve air inlet is provided with described expansion valve, the end of described air inlet pipeline stretches into expansion valve air inlet and by sealing ring sealing expansion valve air inlet, described expansion valve air inlet is in inverted ladder type, described sealing ring includes the first sealant being connected with each other, second sealant, the outer diameter D of the first described sealant is more than the outside diameter d of the second sealant and the first sealant is located at the top of the second sealant.The double-layer seal attachment structure of the car air-conditioner pipeline greatly improves sealed connection performance, improves the reliability of whole air-conditioning system, and it is simple in construction, operation is simple, sealing effectiveness is obvious, it is easier to promote.
Description
Technical field
Technical field of automobile parts is the utility model is related to, more particularly to a kind of double-layer seal of car air-conditioner pipeline connects
Binding structure.
Background technology
The car air-conditioner pipe interface form of automobile is this close generally using radially single O shapes sealing structure at present
Seal structure, due to the reason such as pipeline skew or pipeline vibrations, easily causes ring wear, deformation in assembling process, but
It is in practical set, this abrasion condition is often not easy to be found again, so as to leave hidden danger.After automobile dispatches from the factory, due to
There is high pressure refrigerant and refrigeration oil between pipeline, when automobile is traveling in bumpy sections, refrigerant and refrigeration oil very may be used
It can be revealed from the abrading section of sealing ring, so as to considerably increase the maintenance cost of automobile.
In order to solve the above problems, current many enterprises take the way that twice groove is opened in line connection more, pass through
The O-ring seals of two identical sizes are socketed respectively to reach sealing effectiveness in two grooves, and the method can also make pipeline
Two seals effect is formed, so as to the generation of prevent leakage phenomenon, reduces leakage probability.But such a way in pipeline because produce
During add one of pipeline fluting process, so as to add manufacturing cost, and dual layer sealing effect can not be fully achieved,
Unfailing performance is poor.
The content of the invention
The utility model holds for car air-conditioner pipeline Hermetical connecting structure present in prior art in assembling process
Ring wear, deformation are easily caused, refrigerant and refrigeration oil are likely to the mill from sealing ring when being jolted so as to cause automobile to be advanced
Damage position leakage, a kind of the defects of greatly increasing the maintenance cost of automobile, there is provided double-layer seal of new car air-conditioner pipeline
Attachment structure.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：
A kind of double-layer seal attachment structure of car air-conditioner pipeline, including air inlet pipeline, sealing ring, expansion valve, it is described
Sealing ring is placed on the end of air inlet pipeline, and expansion valve air inlet, the end of described air inlet pipeline are provided with described expansion valve
Portion stretches into expansion valve air inlet and by sealing ring sealing expansion valve air inlet, and described expansion valve air inlet is in inverted ladder type, institute
The sealing ring stated includes the first sealant, the second sealant being connected with each other, and the outer diameter D of the first described sealant is more than second
The outside diameter d of sealant and the first sealant are located at the top of the second sealant.
Ring structure is designed to be connected with each other by the sealant of two various outer diameters and formed, wherein the first sealant is outer
Footpath D is more than the outside diameter d of the second sealant and the first sealant is located at the top of the second sealant, while expansion valve air inlet is set
Inverted ladder type shape is counted into, then both can be made to cooperate and reach more preferable dual layer sealing effect so that the first sealing of sealing ring
Layer, the second sealant can be preferably with expansion valve air inlet inwall fit, while can reduce because outer radius abrasion and
The probability for causing pipeline to be revealed, so as to greatly improve sealed connection performance, improves the reliability of whole air-conditioning system, and
It is of the present utility model it is simple in construction, operation is simple, sealing effectiveness is obvious, it is easier to promote.
Preferably, a kind of double-layer seal attachment structure of car air-conditioner pipeline described above, described air inlet pipeline
End be additionally provided with groove, described sealing ring is placed on groove.
The groove of the end of air inlet pipeline can make sealing ring be fixed on the end of air inlet pipe, prevent caused by vibration
The generation for the problems such as sealing ring comes off, sealing ring is set to reach better seal effect, while the damage that can reduce sealing ring is general
Rate, substantially increase the reliability of pipeline sealing.
Preferably, a kind of double-layer seal attachment structure of car air-conditioner pipeline described above, described sealing ring with
Groove is interference fitted.
The generation for the problems such as sealing ring can prevent sealing ring from coming off with groove interference fit, makes sealing ring reach more preferable
Sealing effectiveness, while the probability of damage of sealing ring can be reduced, substantially increase the reliability of pipeline sealing.
Preferably, a kind of double-layer seal attachment structure of car air-conditioner pipeline described above, described expansion valve enter
Angle [alpha] between gas port inwall and vertical direction is 1 degree to 5 degree.
In this angular range, better seal effect can be reached with the first sealant of fitted seal circle, the second sealant
Fruit, while the probability for causing pipeline to be revealed because outer radius is worn can be reduced.
Preferably, a kind of double-layer seal attachment structure of car air-conditioner pipeline described above, described air inlet pipeline
On pipeline pressing plate is additionally provided with above end, described pipeline pressing plate is connected by fixture with described expansion valve.
After pipeline pressing plate is connected by fixture with expansion valve, air inlet pipe can be better protected from car running process
Road loosens because rocking, so as to be further ensured that sealing property.
Preferably, a kind of double-layer seal attachment structure of car air-conditioner pipeline described above, the described first sealing
Layer, the second sealant are all O-ring seals.
O-ring seals are simple in construction, and cost is relatively low, more conducively marketing.
Brief description of the drawings
Fig. 1 is a kind of exploded perspective figure of the double-layer seal attachment structure of car air-conditioner pipeline of the utility model；
Fig. 2 is a kind of section explosive view of the double-layer seal attachment structure of car air-conditioner pipeline of the utility model；
Fig. 3 is the structural representation of sealing ring in the utility model；
Fig. 4 is the structural representation that air inlet pipeline will be connected and seal with expansion valve in the utility model；
Fig. 5 is that air inlet pipeline is connected the structural representation under simultaneously sealing state with expansion valve in the utility model.
Embodiment
1-5 and embodiment are described in further detail to the utility model below in conjunction with the accompanying drawings, but they are not
To limitation of the present utility model：
Embodiment 1
As shown in Figures 1 to 5, a kind of double-layer seal attachment structure of car air-conditioner pipeline, including air inlet pipeline 1, sealing
Circle 2, expansion valve 3, described sealing ring 2 are placed on the end 11 of air inlet pipeline 1, and being provided with expansion valve on described expansion valve 3 enters
Expansion valve air inlet 31 is stretched into and by the sealing expansion valve air inlet of sealing ring 2 in gas port 31, the end 11 of described air inlet pipeline 1
31, described expansion valve air inlet 31 is in inverted ladder type, and described sealing ring 2 includes the first sealant 21, second being connected with each other
Sealant 22, the outer diameter D of the first described sealant 21 is more than the outside diameter d of the second sealant 22 and the first sealant 21 is positioned at the
The top of two sealants 22.
In use, sealing ring 2 to be placed on to the end 11 of air inlet pipeline 1, then the end 11 of air inlet pipeline 1 is extend into swollen
In the expansion valve air inlet 31 of swollen valve 3 so that the sealing expansion valve air inlet 31 of sealing ring 2, in seal process, because expansion valve enters
Gas port 31 is in inverted ladder type, and the first sealant 21 of sealing ring 2 is located at top and the first sealant 21 of the second sealant 22
Outer diameter D is more than the outside diameter d of the second sealant 22, then during being stretched into when the end 11 of air inlet pipeline 1, the first of sealing ring 2
Sealant 21, the second sealant 22 fit the inwall step by step with expansion valve air inlet 31, close during stretching into so as to avoid
The excessive wear of seal 2, and constantly stretching into the end 11 of air inlet pipeline 1, the inwall of sealing ring 2 and expansion valve air inlet 31 it
Between will clamp step by step, so as to be further ensured that the sealing property of sealing ring 2, ensure sealing reliability.
Preferably, the end 11 of described air inlet pipeline 1 is additionally provided with groove 12, described sealing ring 2 is placed on groove
On 12.
Preferably, described sealing ring 2 is interference fitted with groove 12.
Preferably, the angle [alpha] between the described inwall of expansion valve air inlet 31 and vertical direction is 1 degree to 5 degree.
Preferably, pipeline pressing plate 4, described pipeline are additionally provided with described air inlet pipeline 1 in the top of end 11
Pressing plate 4 is connected by fixture 5 with described expansion valve 3.
In use, the end 11 of air inlet pipeline 1 is extend into the expansion valve air inlet 31 of expansion valve 3, make pipeline pressing plate 4
It is brought into close contact with the end face of expansion valve 3, is then connected pipeline pressing plate 4 with expansion valve 3 by fixture 5, it is fixed so as to reach
Purpose, prevent in car running process sealing structure to loosen.
Preferably, the first described sealant 21, the second sealant 22 are all O-ring seals.
In a word, preferred embodiment of the present utility model, all scopes according to present utility model application patent be the foregoing is only
The equivalent changes and modifications made, it should all belong to covering scope of the present utility model.
Claims (6)
1. a kind of double-layer seal attachment structure of car air-conditioner pipeline, including air inlet pipeline（1）, sealing ring（2）, expansion valve（3）,
Described sealing ring（2）It is placed on air inlet pipeline（1）End（11）, described expansion valve（3）On be provided with expansion valve air inlet
（31）, described air inlet pipeline（1）End（11）Stretch into expansion valve air inlet（31）And pass through sealing ring（2）Sealing expansion valve
Air inlet（31）, it is characterised in that：Described expansion valve air inlet（31）In inverted ladder type, described sealing ring（2）Including mutual
First sealant of connection（21）, the second sealant（22）, described the first sealant（21）Outer diameter D be more than the second sealant
（22）Outside diameter d and the first sealant（21）Positioned at the second sealant（22）Top.
A kind of 2. double-layer seal attachment structure of car air-conditioner pipeline according to claim 1, it is characterised in that：Described
Air inlet pipeline（1）End（11）It is additionally provided with groove（12）, described sealing ring（2）It is placed on groove（12）On.
A kind of 3. double-layer seal attachment structure of car air-conditioner pipeline according to claim 2, it is characterised in that：Described
Sealing ring（2）With groove（12）Interference fit.
A kind of 4. double-layer seal attachment structure of car air-conditioner pipeline according to claim 1, it is characterised in that：Described
Expansion valve air inlet（31）Angle [alpha] between inwall and vertical direction is 1 degree to 5 degree.
A kind of 5. double-layer seal attachment structure of car air-conditioner pipeline according to claim 1, it is characterised in that：Described
Air inlet pipeline（1）On in end（11）Top be additionally provided with pipeline pressing plate（4）, described pipeline pressing plate（4）Pass through fixture
（5）With described expansion valve（3）Connection.
A kind of 6. double-layer seal attachment structure of car air-conditioner pipeline according to claim 1, it is characterised in that：Described
First sealant（21）, the second sealant（22）All it is O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327896.3U CN206802553U (en) | 2017-03-31 | 2017-03-31 | A kind of double-layer seal attachment structure of car air-conditioner pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720327896.3U CN206802553U (en) | 2017-03-31 | 2017-03-31 | A kind of double-layer seal attachment structure of car air-conditioner pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802553U true CN206802553U (en) | 2017-12-26 |
Family
ID=60730269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720327896.3U Expired - Fee Related CN206802553U (en) | 2017-03-31 | 2017-03-31 | A kind of double-layer seal attachment structure of car air-conditioner pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802553U (en) |
-
2017
- 2017-03-31 CN CN201720327896.3U patent/CN206802553U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6216455B2 (en) | Self-seal butterfly valve | |
| CN206802553U (en) | A kind of double-layer seal attachment structure of car air-conditioner pipeline | |
| CN203549194U (en) | Sealing gasket for conical connecting piece of pipeline bulb | |
| CN202708404U (en) | A two-stage seal flange employing clamping sleeve connection and being used for pipelines | |
| CN202691372U (en) | Interface structure of dual-seal pipe for automobile air conditioner | |
| CN214789274U (en) | High leakproofness oil valve | |
| CN202629399U (en) | Two-level sealing flange for pipelines | |
| CN204592443U (en) | Without hot absorption drier safety check and without hot absorption drier | |
| CN206287763U (en) | A kind of sealing ring of tyre valve | |
| CN203272830U (en) | Dual-purpose throttle stop valve | |
| CN102490549A (en) | Rotary sealing device | |
| CN207018732U (en) | A kind of Vehicular air conditioner rubber sealing member | |
| CN202378632U (en) | Rotary sealing device | |
| CN101153682A (en) | Terminal sealing structure of air conditioner pipe lines | |
| CN2641404Y (en) | Pneuamtic tube clamping valve | |
| CN203082412U (en) | Pipeline joint of automobile air conditioning compressor | |
| CN205065092U (en) | Connection structure of air conditioner pipeline and condenser | |
| CN203548978U (en) | Ball valve with single-valve-seat bidirectional sealing structure | |
| CN204004934U (en) | A kind of soft or hard composite seal device | |
| CN104121439A (en) | Soft-hard combined sealing device | |
| CN111794948B (en) | Split type pressure pipe air valve sealing structure of diaphragm compressor | |
| CN204573115U (en) | Fill fluorine process duct and there is its air conditioner outdoor machine | |
| CN218494201U (en) | Integrated combined stop valve | |
| CN220956399U (en) | Axial fixing pneumatic sucker | |
| CN213206907U (en) | All-metal pneumatic quick-insertion three-way connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |