CN209294593U - A kind of pipeline jointing construction - Google Patents
A kind of pipeline jointing construction Download PDFInfo
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- CN209294593U CN209294593U CN201822105823.7U CN201822105823U CN209294593U CN 209294593 U CN209294593 U CN 209294593U CN 201822105823 U CN201822105823 U CN 201822105823U CN 209294593 U CN209294593 U CN 209294593U
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- nut
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Abstract
This application discloses a kind of pipeline jointing constructions comprising: engine accessory power rating interface；Right angle pipe interface, the right angle pipe interface offset with engine accessory power rating interface end face；First semi-ring nut and the second semi-ring nut, the first semi-ring nut and the second semi-ring nut, which are constituted, has internal screw thread and externally threaded inner sleeve nut, and inner sleeve nut one end connects with the right angle pipeline interface card, the inner sleeve nut other end is connect by internal screw thread with the engine accessory power rating interface；And cap nut, the cap nut cover outside the inner sleeve nut, cooperate with the external screw thread of the inner sleeve nut.For the right angle pipeline jointing construction of the pipeline jointing construction of the application compared with the prior art, have many advantages, such as that connection is reliable, easy to produce, can decompose reconditioning.
Description
Technical field
The application belongs to aeroengine pipeline design field, in particular to a kind of pipeline jointing construction.
Background technique
Pipe nipple connection structure is a kind of type of attachment common in external engine piping, by contact seal nipple and
Cap nut two parts composition.Under its normal operating conditions, cap nut will contact seal nipple and engine at attachment or
The outside cone joint of other pipelines is tightly crimped together, it is ensured that liquid, gas are flowed in channel interior without letting out
Leakage.The arrangement of external engine piping usually has stringent space limitation, and realizes evacuation barrier by conduit itself bending
Method needed for space it is larger, it is difficult to meet pipeline arrangement space requirement.Therefore external engine piping is often used quadrature tube
Road interface structure replaces the natural bending of pipeline, its advantage is that the turning of pipeline can be completed in smaller space, raising is started
Space utilization rate outside machine.Right angle pipe interface is one kind of pipe nipple structure, straight used in aero-engine at present
Angle pipe interface is usually nut stop pin type structure, and the structure is by nut latch to inner sleeve nut and right angle pipe interface
It is limited, straight nut latch is squeezed into cap nut and right angle pipe interface by the pin hole that cap nut is reserved in production
Between annular groove in, nut latch deform circlewise and by nut and right angle pipeline combination of interfaces at axial limiting, a week
To rotatable component.
However the deformation of nut latch that the existing union elbow structure with nut latch uses is uneven,
The annulus shape of formation is irregular, therefore the pressing force in the inner sleeve nut work of the structure is amesiality, can not press well
Close sealing joint is revealed from sealing surface so as to cause fuel oil；And the structure can not decompose after nut latch is squeezed into,
Pipe nipple sealing surface is not easy to carry out reconditioning after scratching, and reduces the reliability of structure and maintainability.
Summary of the invention
There is provided a kind of pipeline jointing constructions for the purpose of the application, any of the above-described to solve the problems, such as.
The technical solution of the application is: a kind of pipeline jointing construction comprising: engine accessory power rating interface；Right angle pipeline connects
Mouthful, the right angle pipe interface offsets with engine accessory power rating interface end face；First semi-ring nut and the second semi-ring nut, institute
It states the first semi-ring nut and the second semi-ring nut is constituted with internal screw thread and externally threaded inner sleeve nut, and the inner sleeve nut one
End connects with the right angle pipeline interface card, and the inner sleeve nut other end is connected by internal screw thread and the engine accessory power rating interface
It connects；And cap nut, the cap nut cover outside the inner sleeve nut, cooperate with the external screw thread of the inner sleeve nut.
In this application, the end face that the right angle pipe interface and the engine accessory power rating interface offset is inclined-plane.
In this application, the right angle pipe interface has outer convex shoulder and the inner sleeve nut has internal shoulder, described
Outer convex shoulder cooperates with the internal shoulder to be moved in the axial direction with limiting the inner sleeve nut.
For the right angle pipeline jointing construction of the pipeline jointing construction of the application compared with the prior art, have following excellent
Point:
1) it is rotated flexibly after the cap nut of the right angle pipeline interface in the application and the assembling of inner sleeve nut, it can be effective
Nut in the structure due to using nut latch is avoided to rotate inflexible problem；
2) when the pipeline jointing construction in the application is in running order, internal shoulder and the right angle interface tube of inner sleeve nut
Outer convex shoulder uniformly contacts, so that pressing force is uniform, the sealing effect of sealing surface is more preferable；
3) it can decompose after the pipeline jointing construction assembling use in the application, the right angle pipeline convenient for scratching to sealing surface connects
Mouth carries out decomposition reconditioning.
Detailed description of the invention
In order to illustrate more clearly of technical solution provided by the present application, attached drawing will be briefly described below.It is aobvious and easy
Insight, drawings discussed below are only some embodiments of the present application.
Fig. 1 is pipeline jointing construction schematic diagram.
Fig. 2 is pipeline jointing construction cross-sectional view.
Fig. 3 is right angle pipe interface and inner sleeve nut schematic view of the mounting position before installation cap nut.
Appended drawing reference:
1- engine accessory power rating interface, 2- cap nut, the first semi-ring of 3- nut, the second semi-ring of 4- nut, the right angle 5- pipeline
Interface, 6- pipeline, 7- inner sleeve nut.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application is further described in more detail.
The purpose of the application is to propose that one kind can be used in quadrature tube road interface and be free of the piping connection knot of nut latch
Structure.
The engine accessory power rating interface 1 and right angle pipe interface 5 that the pipeline jointing construction of the application offsets for connecting end surface,
It includes point half formula inner sleeve nut 7 and the cap nut 2 being made of the first semi-ring nut 3 and the second semi-ring nut 4,
Inner sleeve nut 7 has internal screw thread and external screw thread, and set is clamped in 5 outside of right angle pipe interface with right angle pipe interface 5, another
End is cooperated by internal screw thread and engine accessory power rating interface 1,2 sets of the cap nut outsides in inner sleeve nut 7, with inner sleeve nut 7 it
Between by screw thread be connected.
In this application, the end face that pipe interface 5 engine accessory power rating interface 1 in right angle offsets is inclined-plane.
In this application, there is right angle pipe interface 5 outer convex shoulder and inner sleeve nut 7 to have an internal shoulder, outer convex shoulder with it is interior
Convex shoulder cooperation is moved in the axial direction with limiting inner sleeve nut 7.
In use process, the convex shoulder end face of two semi-ring nuts and the ring outer shoulder of right angle pipe interface 6 fit,
Then cap nut 2 is tightened on outside two semi-ring nuts, at this moment cap nut 2 and two semi-ring nuts form one completely
Inner ring nut 7 is tightened on the external screw thread of engine accessory power rating interface 1 by inner ring nut 7, can be by the inner cone of right angle pipe interface 5
Face is pressed on the male cone (strobilus masculinus) of engine accessory power rating interface 1, to play the role of sealing interior media.
In this application, divide half formula inner sleeve nut 7 need first carry out overall processing, complete inner sleeve nut 7 internal screw thread,
The corresponding process of external screw thread, twisting flange and snap ring finally carries out the first semi-ring that cutting forms two semi-rings to inner sleeve nut 7
Nut 3 and the second semi-ring nut 4.In order to correspond to each other the inner sleeve nut thread of two semi-rings, the first semi-ring of formation is cut
Nut 3 and the second semi-ring nut 4, which need to match, to be used.It needs for the first semi-ring nut 3 and the second semi-ring nut 4 to be combined into installation interior
Nut 7 is covered, is then screwed cap nut 2 on the outside of the screw thread of inner sleeve nut 7, cap nut 2 is tightened on inner sleeve by screw thread
The outside of nut 7 plays and the globality of inner sleeve nut 7 is kept to be allowed to not fall off outside right angle pipe interface 5.By right angle in use
The inner conical surface of pipe interface 5 is bonded with the male cone (strobilus masculinus) of engine accessory power rating interface 1, regard cap nut 2 and inner sleeve nut 7 as one
Internal screw thread entirely through combination inner sleeve nut is connected and screws with the external screw thread of engine accessory power rating interface 1, thus can be by pipe
Road is connected with engine accessory power rating.The interior bevel sealing surface of right angle pipe interface 5 and connecing for the male cone (strobilus masculinus) of engine accessory power rating interface 1 at this time
Contacting surface is an annulus conical surface, since the two mutually compresses under the action of inner sleeve nut 7 and generates certain flexible deformation, because
Gap is not present on this annulus taper-face contact face, medium will not be leaked to outside pipeline by contact surface.It used in order to prevent
The loosening of inner sleeve nut 7, cap nut 2 in journey lock silk can be used to pass through inner sleeve nut 7, cap nut 2 and engine accessory power rating and connect
Lock wire hole on mouthful 1 and by the latching of the relative position of three, to play locking effect.Since the piping connection of the application connects
The repeatable assembly of mouth, if the inner conical surface surface of right angle pipe interface 5 scratches, it is only necessary to screw off cap nut 2, two semi-rings
The first semi-ring nut 3 and the second semi-ring nut 4 can be removed from the outside of right angle pipe interface 5, at this moment right angle pipeline connects
The inner conical surface of mouth 5 has accessibility, can carry out figuring of surface processing by the way of mechanical or manual.
For the right angle pipeline jointing construction of the pipeline jointing construction of the application compared with the prior art, have following excellent
Point:
1) it is rotated flexibly after the cap nut of the right angle pipeline interface in the application and the assembling of inner sleeve nut, it can be effective
Nut in the structure due to using nut latch is avoided to rotate inflexible problem；
2) when the pipeline jointing construction in the application is in running order, internal shoulder and the right angle interface tube of inner sleeve nut
Outer convex shoulder uniformly contacts, so that pressing force is uniform, the sealing effect of sealing surface is more preferable；
3) it can decompose after the pipeline jointing construction assembling use in the application, the right angle pipeline convenient for scratching to sealing surface connects
Mouth carries out decomposition reconditioning.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (3)
1. a kind of pipeline jointing construction, which is characterized in that including
Engine accessory power rating interface (1)；
Right angle pipe interface (5), the right angle pipe interface (5) offset with engine accessory power rating interface (1) end face；
First semi-ring nut (3) and the second semi-ring nut (4), the first semi-ring nut (3) and the second semi-ring nut (4) are constituted
With internal screw thread and externally threaded inner sleeve nut (7), and described inner sleeve nut (7) one end and the right angle pipe interface (5) are blocked
It connects, inner sleeve nut (7) other end is connect by internal screw thread with the engine accessory power rating interface (1)；And
Cap nut (2), the cap nut (2) cover the inner sleeve nut (7) outside, outer spiral shell with the inner sleeve nut (7)
Line cooperation.
2. pipeline jointing construction as described in claim 1, which is characterized in that the right angle pipe interface (5) is started with described
The end face that machine attachment interface (1) offsets is inclined-plane.
3. pipeline jointing construction as described in claim 1, which is characterized in that the right angle pipe interface (5) has outer convex shoulder,
And the inner sleeve nut (7) has internal shoulder, the outer convex shoulder and the internal shoulder cooperate to limit the inner sleeve nut (7)
It moves in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822105823.7U CN209294593U (en) | 2018-12-14 | 2018-12-14 | A kind of pipeline jointing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822105823.7U CN209294593U (en) | 2018-12-14 | 2018-12-14 | A kind of pipeline jointing construction |
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| Publication Number | Publication Date |
|---|---|
| CN209294593U true CN209294593U (en) | 2019-08-23 |
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ID=67654902
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822105823.7U Active CN209294593U (en) | 2018-12-14 | 2018-12-14 | A kind of pipeline jointing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209294593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630830A (en) * | 2019-09-29 | 2019-12-31 | 安徽欣景隆轨道车辆装备有限公司 | Anti-loosening device for pipeline connecting assembly, pipeline connecting assembly and method |
-
2018
- 2018-12-14 CN CN201822105823.7U patent/CN209294593U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630830A (en) * | 2019-09-29 | 2019-12-31 | 安徽欣景隆轨道车辆装备有限公司 | Anti-loosening device for pipeline connecting assembly, pipeline connecting assembly and method |
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