CN205048020U - A double tube connects for airliner - Google Patents
A double tube connects for airliner Download PDFInfo
- Publication number
- CN205048020U CN205048020U CN201520739023.4U CN201520739023U CN205048020U CN 205048020 U CN205048020 U CN 205048020U CN 201520739023 U CN201520739023 U CN 201520739023U CN 205048020 U CN205048020 U CN 205048020U
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- China
- Prior art keywords
- lining
- pipe sleeve
- airliner
- double
- flexible joint
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Abstract
A double tube connects for airliner, the axial was local open on bush (4) were tubulose and wall, and butt joint two pipy pipes sleeves of canning (3) outside bush (4), pipe sleeve (3) front end dock the off -plate and directly are greater than the afterbody, pipe sleeve (3) afterbody mouth inner edge lining dress holding ring (6), outside (3) butt joint position is tucked inside the sleeve to two pipes canning flexible joint (5), flexible joint (5) inner wall has the hoop recess. Satisfy installation clearance requirement, the restriction closes on the clearance and the axial motion of outer tube to connection for the outer tube provides certain flexibility, compensaties the installation and warp tolerance and the displacement that produces, and processing, installation and dismouting are simple and convenient, can satisfy the use of various specification double skin ducts.
Description
Technical field
The utility model relates to large-scale aircraft class air equipment pipeline linkage structure improvement opportunity, in particular for the Double-layer frame joint of airliner.
Background technique
At present, conventional large-scale aircraft class air equipment pipeline is mainly divided into individual layer delivery pipe and double-layered delivery pipe.Wherein, the fuel tank external pipeline for fuel oil conveying is adopt double layer construction substantially, and its internal layer adopts steel pipe as fuel feed pipe, and by outer layer pipe as the protection to inner layer steel pipe; But due to the difference of laying process, the laying speed of double-skin duct is generally mono-layer tube lays speed 1/4 to 1/3.Like this, the cost of construction and duration is just made significantly to increase.
In bimetallic tube design, the setting tool of inner pipe joint has certain requirement to space, which results in and manages in dismounting to be easier to, and just must reserve enough assemblage gaps between bimetallic tube.Gap between two pipelines at two ends is just large than standard design a lot.Except optimizing operation, improving the corrective measures such as welding procedure in construction, significantly do not improve the method that efficiency laid by double-skin duct.And if the laying process of individual layer pipeline is applied to the laying of double-skin duct, then greatly can improve the laying speed of double-skin duct, but owing to there is no the pipe joint of connected double-layer pipeline, the laying of double-skin duct cannot be carried out according to the laying process of individual layer pipeline.
Model utility content
The purpose of this utility model is to provide the Double-layer frame joint for airliner.
The purpose of this utility model will be realized by following technical measures: comprise pipe sleeve, lining, flexible joint and positioning ring; Lining axial partly open in a tubular form and on wall, outside lining, dock the pipe sleeve of jacket two tubuloses, pipe 3 front end interface external diameters of tucking inside the sleeve are greater than afterbody, pipe sleeve afterbody mouth inner edge lining dress positioning ring, jacket flexible joint outside two pipe sleeve docking sites, flexible joint inwall has circumferential groove.
Especially, the external diameter at lining two ends is identical with external tube layer 2 interface end face external diameter.
Especially, mounting O-shaped seal ring respectively in the outer rim at lining two ends; Pipe is tucked inside the sleeve 3 docking site end face outer rims mounting O-shaped seal rings respectively.
Especially, lining two ora terminalis outer wall is centripetal recessed, described end face has local breach simultaneously.
Especially, flexible joint has the semicircle watt plate of two cambers to form, and between the semicircle watt plate of these two cambers, side is hinged, by being separately fixed at the clip hook device clamping in end face outer rim between opposite side.
Especially, outermost surface connects flexible joint.
Advantage of the present utility model and effect: meet assemblage gap requirement, restriction closes on gap and the axial motion of outer tube, and provide certain flexibility for the connection of outer tube, make up the tolerance and displacement of installing and being out of shape and producing, processing, installation and dismounting are simple and convenient, can meet the use of all size double-skin duct.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is bush structure schematic diagram in the utility model embodiment 1.
Fig. 3 is flexible joint structural representation in the utility model embodiment 1.
Reference character comprises:
Interior tube layer 1, external tube layer 2, pipe sleeve 3, lining 4, flexible joint 5, positioning ring 6.
Embodiment
The utility model principle is, designs a king-size joint to connect outer tube, and meets system requirements.
The utility model comprises: pipe sleeve 3, lining 4, flexible joint 5 and positioning ring 6.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, lining 4 axial partly open in a tubular form and on wall, the pipe sleeve 3 of jacket two tubuloses is docked outside lining 4, pipe 3 front end interface external diameters of tucking inside the sleeve are greater than afterbody, pipe tuck inside the sleeve 3 afterbody mouth inner edges lining dress positioning rings 6, jacket flexible joint 5 outside 3 docking sites tucked inside the sleeve by two pipes, flexible joint 5 inwall has circumferential groove.
In aforementioned, the external diameter at lining 4 two ends is identical with external tube layer 2 interface end face external diameter.
In aforementioned, difference mounting O-shaped seal ring in the outer rim at lining 4 two ends; Pipe is tucked inside the sleeve 3 docking site end face outer rims mounting O-shaped seal rings respectively.
In aforementioned, as shown in Figure 2, lining 4 liang of ora terminalis outer walls are centripetal recessed, described end face have local breach simultaneously.Described breach is convenient to interface installation.
In aforementioned, as shown in Figure 3, flexible joint 5 has the semicircle watt plate of two cambers to form, and between the semicircle watt plate of these two cambers, side is hinged, by being separately fixed at the clip hook device clamping in end face outer rim between opposite side.
In aforementioned, flexible joint 5 is AS5830 standard interface.
In the utility model, be tightly connected with screw socket between interior tube layer 1 end of both sides, lining 4 both ends of the surface be wrapped in outside this screw socket connection part push against both sides external tube layer 2 end face respectively, simultaneously, lining 4 is wrapped in outer to connect external tube layer 2 pipeline with two extended type pipe sleeves 3, pipe sleeve 3 is inwardly compressed by positioning ring 6, the axial motion of positioning ring 6 limiter tube sleeve 3, lining 4 restriction closes on gap and the axial motion of external tube layer 2, simultaneously with the sealing of O type circle, finally at the pipe sleeve 3 that joint area outermost surface docks with flexible joint 5 jacket two.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (5)
1., for the Double-layer frame joint of airliner, comprise pipe sleeve (3), lining (4), flexible joint (5) and positioning ring (6); It is characterized in that, lining (4) axial partly open in a tubular form and on wall, at pipe sleeve (3) of lining (4) outside docking jacket two tubuloses, pipe sleeve (3) front end interface external diameter is greater than afterbody, pipe sleeve (3) afterbody mouth inner edge lining dress positioning ring (6), jacket flexible joint (5) outside two pipe sleeve (3) docking sites, flexible joint (5) inwall has circumferential groove.
2., as claimed in claim 1 for the Double-layer frame joint of airliner, it is characterized in that, the external diameter at lining (4) two ends is identical with external tube layer (2) interface end face external diameter.
3. as claimed in claim 1 for the Double-layer frame joint of airliner, it is characterized in that, difference mounting O-shaped seal ring in the outer rim at lining (4) two ends; Pipe sleeve (3) docking site end face outer rim mounting O-shaped seal ring respectively.
4. as claimed in claim 1 for the Double-layer frame joint of airliner, it is characterized in that, flexible joint (5) has the semicircle watt plate of two cambers to form, between the semicircle watt plate of these two cambers, side is hinged, by being separately fixed at the clip hook device clamping in end face outer rim between opposite side.
5. as claimed in claim 1 for the Double-layer frame joint of airliner, it is characterized in that, outermost surface connects flexible joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739023.4U CN205048020U (en) | 2015-09-22 | 2015-09-22 | A double tube connects for airliner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739023.4U CN205048020U (en) | 2015-09-22 | 2015-09-22 | A double tube connects for airliner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205048020U true CN205048020U (en) | 2016-02-24 |
Family
ID=55341596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520739023.4U Active CN205048020U (en) | 2015-09-22 | 2015-09-22 | A double tube connects for airliner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205048020U (en) |
-
2015
- 2015-09-22 CN CN201520739023.4U patent/CN205048020U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |