CN208871189U - A kind of pipe joint of belt supporting frame - Google Patents
A kind of pipe joint of belt supporting frame Download PDFInfo
- Publication number
- CN208871189U CN208871189U CN201821380779.4U CN201821380779U CN208871189U CN 208871189 U CN208871189 U CN 208871189U CN 201821380779 U CN201821380779 U CN 201821380779U CN 208871189 U CN208871189 U CN 208871189U
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- CN
- China
- Prior art keywords
- bracket
- pipe joint
- supporting frame
- belt supporting
- screw
- 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.)
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Abstract
The utility model provides a kind of pipe joint of belt supporting frame, by joint face be " V " shape bracket and free flow coupling welding after entirely through the mounting hole on gasket, screw, nut and bracket, it is connect with the nearest housing construction of system mounting location, pipeline is reconnected after fixing the pipe joint, reduce the connecting link with special stand, reach being reliably fixed for pipe joint of the circulation diameter greater than 20mm, fuel system pipeline is avoided to cause the danger of pipeline leakage because being self-possessed and shaking.Solve when aircraft installation space is limited, can not setting dedicated bracket or special stand, structure is complicated, heavier-weight, or even the operation without bracket connection space the problem of, ensure that being reliably fixed for pipe joint of the circulation diameter greater than 20mm.
Description
Technical field
The utility model relates to aircraft fuel system technical fields, more specifically, the utility model relates to be applied to combustion
Pipe joint in the fluid circuit of oil system.
Background technique
Fuel oil or gas of the fluid circuit for circulate certain pressure and flow in aircraft fuel system, wherein have
A little pipelines need to have biggish negotiability, pipeline at this time and the pipe joint for piping connection often circulate diameter compared with
Greatly.In general, its diameter that circulates of the pipe joint with biggish negotiability is generally higher than 20mm.Such pipe joint is in material
When for aluminium alloy, weight will be greater than 74.5g, and when aircraft fuel system work, such pipe joint is in own wt and machine
Body shakes under working environment, can there is certain vibration displacement variation, when vibration displacement amount is larger, this section of pipeline it is reliable,
Trouble free service will receive influence, will cause pipeline leakage when serious.In general, fuel system can be taken when carrying out circuit design
Increase a special stand near such pipe joint, for fixing pipe joint and housing construction, it is ensured that fuel system
The reliability and safety of fluid circuit work.
Since the fluid circuit circulation of above-mentioned fuel system is relatively large in diameter, pipe joint and the pipe being connected with pipe joint
Road diameter is also larger, and therefore, such fluid circuit needs biggish installation space in design.When aircraft by contour structures, its
When the limitation of his system installation space, the installation space of such fluid circuit nearby can not separately set dedicated bracket or this is special
With supporting structure is complicated, heavier-weight, or even the space without the operation connected again with special stand after pipeline installation, thus
It cannot be guaranteed that being reliably fixed for pipe joint of the circulation diameter greater than 20mm, brings the danger of fuel system pipeline leakage.
Summary of the invention
In order to solve when aircraft is limited by contour structures, other systems installation space, the installation space of fluid circuit
Nearby can not separately setting dedicated bracket or special stand, structure is complicated, heavier-weight, in addition do not have after pipeline installation again and
The space of the operation of bracket connection, so that it cannot be guaranteed that being reliably fixed for pipe joint of the circulation diameter greater than 20mm, brings combustion
The danger of oil system pipeline leakage, the utility model provide a kind of pipe joint of belt supporting frame.
A kind of pipe joint of belt supporting frame, including bracket, free flow coupling, gasket and screw；On free flow coupling outer diameter
Equipped at least two wrench faces；One end of bracket is the joint face of V shape, and two wrench faces of joint face and free flow coupling are fixed
Connection；There are two connecting holes for the other end system of bracket, pass through gasket by screw and connecting hole secures a bracket to the machine of aircraft
In body structure.
The angle of the V shape of the joint face is 120 degree.
The apex of the V shape of the joint face is provided with a hole.
The connecting hole passes through for screw, and aperture is chosen for 3.5mm, 4.5mm or 5.5mm.
The bracket with a thickness of 2mm, 2.5mm or 3mm.
The screw is stud, and the thickness that stud smooth bar part length is less than gasket adds the thickness and housing construction of bracket
Thickness sum.
The nut of the screw fit is self-locking nut.
The utility model reaches the pipe joint that circulation diameter is greater than 20mm by reducing the connecting link with special stand
Be reliably fixed, avoid fuel system pipeline from causing the danger of pipeline leakage because being self-possessed and shaking；It solves when aircraft is by outer
When shape structure, installation space are narrow, dedicated bracket can not be separately set, so that it cannot be guaranteed that pipeline of the circulation diameter greater than 20mm connects
Being reliably fixed for head, brings the danger of fuel system pipeline leakage.
Detailed description of the invention
This technology is invented with reference to the accompanying drawings and examples and is further illustrated.
Fig. 1 is the schematic perspective view of the application.
Fig. 2 is 1 schematic perspective view of bracket of the application.
Fig. 3 is the bracket 1 of the application and the schematic perspective view of free flow coupling 2.
Fig. 4 is the applicating example schematic diagram of the application.
Fig. 5 is the applicating example decomposition diagram of the application.
In figure: 1. brackets, 2. free flow couplings, 3. connecting holes, 4. joint faces, 5. housing constructions, 6. gaskets, 7.
Screw, 8. nuts, 9. mounting holes.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
A kind of pipe joint of belt supporting frame of the utility model, including bracket 1, free flow coupling 2, gasket 6, screw 7 and spiral shell
Mother 8；2 outer diameter of free flow coupling is equipped at least two wrench faces；One end of bracket 1 is the joint face 4 of V shape, joint face 4 and straight
Two wrench faces of connection for bbreather pipe 2 are fixedly connected；There are two connecting holes 3 for the other end system of bracket 1, pass through gasket 6 by screw 7
Bracket 1 is fixed on the housing construction of aircraft with connecting hole 3.The angle of the V shape of the joint face 4 is 120 degree.
Embodiment 2
A kind of pipe joint of belt supporting frame of the utility model passes through the " V " shape joint face 4 of bracket 1 and free flow coupling 2
Two wrench faces welding, are connected to become entirety, while digging has 2 mounting holes 3 on bracket 1.When aircraft by contour structures, other
When the limitation of system installation space, the installation space of such fluid circuit nearby can not separately set dedicated bracket or dedicated branch
Structure is complicated for frame, heavier-weight, or even the space without the operation connected again with bracket after pipeline installation, after welding at this time
Entirely through gasket 6, screw 7, nut 8 and housing construction 5 mounting hole 9 connect, wherein gasket 6 is first inserted in the spiral shell of screw 7
Rasp bar, the connecting hole 3 being then passed through on bracket 1 pass through the mounting hole 9 on housing construction 5 later, then from the peace on housing construction 5
The other side for filling hole 9 is tightened using nut 8 and the cooperation of screw 7.After fixing the pipe joint, reconnect pipeline, reduce and
The connecting link of special stand reaches being reliably fixed for pipe joint of the circulation diameter greater than 20mm, avoids fuel system pipeline
The danger of pipeline leakage is caused because being self-possessed and shaking.
Embodiment 3
A kind of pipe joint of belt supporting frame of the utility model, including bracket 1, free flow coupling 2, gasket 6, screw 7 and spiral shell
Mother 8；2 outer diameter of free flow coupling is equipped at least two wrench faces；One end of bracket 1 is the joint face 4 of V shape, joint face 4 and straight
Two wrench faces of connection for bbreather pipe 2 are fixedly connected；There are two connecting holes 3 for the other end system of bracket 1, pass through gasket 6 by screw 7
Bracket 1 is fixed on the housing construction of aircraft with connecting hole 3.The apex of the V shape of the joint face 4 is provided with a hole, keeps away
Exempt from stress concentration, prevents from cracking.
Embodiment 4
A kind of pipe joint of belt supporting frame of the utility model, including bracket 1, free flow coupling 2, gasket 6, screw 7 and spiral shell
Mother 8；2 outer diameter of free flow coupling is equipped at least two wrench faces；One end of bracket 1 is the joint face 4 of V shape, joint face 4 and straight
Two wrench faces of connection for bbreather pipe 2 are fixedly connected；There are two connecting holes 3 for the other end system of bracket 1, pass through gasket 6 by screw 7
Bracket 1 is fixed on the housing construction of aircraft with connecting hole 3.Connecting hole 3 passes through for screw, and aperture is chosen for 3.5mm；
The thickness of bracket 1 is chosen for 2mm.The material of the bracket 1 is consistent with the material of free flow coupling 2, convenient for welding.Screw 7
Attaching nut 8 be self-locking nut, guarantee screw connection it is reliable, it is not easily to fall off.
Claims (7)
1. a kind of pipe joint of belt supporting frame, which is characterized in that including bracket, free flow coupling, gasket and screw；Straight pipe connects
Head outer diameter is equipped at least two wrench faces；One end of bracket is the joint face of V shape, and two of joint face and free flow coupling pull
Gesture and facial expression is fixedly connected；There are two connecting holes for the other end system of bracket, pass through gasket by screw and connecting hole secures a bracket to
On the housing construction of aircraft.
2. a kind of pipe joint of belt supporting frame according to claim 1, which is characterized in that the folder of the V shape of the joint face
Angle is 120 degree.
3. a kind of pipe joint of belt supporting frame according to claim 1, which is characterized in that the vertex of the V shape of the joint face
Place is provided with a hole.
4. a kind of pipe joint of belt supporting frame according to claim 1, which is characterized in that the connecting hole is for the logical of screw
It crosses, aperture is chosen for 3.5mm, 4.5mm or 5.5mm.
5. a kind of pipe joint of belt supporting frame according to claim 1, which is characterized in that the bracket with a thickness of 2mm,
2.5mm or 3mm.
6. a kind of pipe joint of belt supporting frame according to claim 1, which is characterized in that the screw is stud, stud light
Bar part length be less than gasket thickness and bracket thickness and housing construction thickness and.
7. a kind of pipe joint of belt supporting frame according to claim 1, which is characterized in that the nut of the screw fit is certainly
Split nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380779.4U CN208871189U (en) | 2018-08-27 | 2018-08-27 | A kind of pipe joint of belt supporting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380779.4U CN208871189U (en) | 2018-08-27 | 2018-08-27 | A kind of pipe joint of belt supporting frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871189U true CN208871189U (en) | 2019-05-17 |
Family
ID=66465759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821380779.4U Active CN208871189U (en) | 2018-08-27 | 2018-08-27 | A kind of pipe joint of belt supporting frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871189U (en) |
-
2018
- 2018-08-27 CN CN201821380779.4U patent/CN208871189U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |