CN221171291U - Easy-to-detach air conduit with corrugated pipe - Google Patents
Easy-to-detach air conduit with corrugated pipe Download PDFInfo
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- CN221171291U CN221171291U CN202323094513.7U CN202323094513U CN221171291U CN 221171291 U CN221171291 U CN 221171291U CN 202323094513 U CN202323094513 U CN 202323094513U CN 221171291 U CN221171291 U CN 221171291U
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- flange
- pipe
- conduit
- duct
- corrugated pipe
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- 238000003466 welding Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 34
- 238000002161 passivation Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a convenient-to-detach air conduit with a corrugated pipe, which comprises a conduit connector and a conduit main body, wherein the conduit connector comprises a flange 1, a corrugated pipe 2, a straight pipe 4 and a hexagonal flange 5; wherein: the catheter connector is connected to the catheter main body in a matched manner; the flange 1 is connected to one end of the corrugated pipe 2 through welding, the other end of the corrugated pipe 2 is connected to the straight pipe 4 through welding, an inner thread surface is arranged inside the straight pipe 4 and is connected with the pipe body 3, and a hexagonal flange 5 is arranged outside the straight pipe 4 of the pipe joint.
Description
Technical Field
The utility model belongs to the technical field of aviation catheters, and particularly relates to a detachable air catheter with a corrugated pipe.
Background
The aircraft environment control system is one of important onboard systems of an aircraft, wherein an aircraft air pipeline system is used as a carrier of high-temperature and high-pressure air, is an important component part of the aircraft environment control system, penetrates through important parts of a fuselage, and is a bridge and a tie which are connected between an air source and an air utilization system.
The air pipeline system is huge in quantity and wide in installation range on the aircraft, and high-temperature and high-pressure gas introduced from the engine flows through the air pipeline system. Therefore, the pipeline maintenance and replacement device is required to provide convenient pipeline maintenance and replacement conditions for maintenance personnel on the premise of ensuring pipeline sealing.
In the existing connection mode of the aircraft bleed air high-temperature air duct, a mechanical connector with a specific standard is welded at two ends of a metal duct, the connectors between the two ducts are connected and then are connected and fixed by using a clamp, and the connection of the two air ducts can be realized through the sealing between the two connectors and the fixation of the clamp. The disadvantage of this is that:
Firstly, with the increase of the service time, the frequent disassembly and assembly may cause the decrease of the air tightness between the joints, and the high-temperature gas leakage can be caused when the air tightness is serious;
Secondly, pipeline thermal stress generated by aircraft vibration and temperature change can cause displacement movement between connected pipes, and a sealing joint can be worn;
Thirdly, the phenomenon that the catheter body needs to be scrapped due to design change of the catheter body, damage of parts and errors in the production and processing process often occurs. Joints that have been welded to the conduit are often not recycled, resulting in economic and time costs.
Disclosure of Invention
The application mainly aims to provide a convenient-to-detach air conduit with a corrugated pipe, so as to solve the current problem.
In order to achieve the above object, the present application provides a detachable air duct with a bellows, the detachable air duct includes a duct joint and a duct body, the duct joint includes a flange 1, a bellows 2, a straight pipe 4, a hexagonal flange 5; wherein:
The catheter connector is connected to the catheter main body in a matched manner; the flange 1 is connected to one end of the corrugated pipe 2 through welding, the other end of the corrugated pipe 2 is connected to the straight pipe 4 through welding, an inner thread surface is arranged inside the straight pipe 4 and is connected with the pipe body 3, and a hexagonal flange 5 is arranged outside the straight pipe 4 of the pipe joint.
Preferably, the flange 1 is fixed on the external interface side of the conduit joint in a welding manner, the port edge of the flange 1 protrudes at a preset angle outside the axial direction of the conduit body, and the flange 1 is in a circular tube shape in the radial direction.
Preferably, the flange 1 protrudes outward in the axial direction of the pipe body by a predetermined angle ranging from 2 ° to 3 °.
Preferably, the inner diameter of the tube body at the two ends of the corrugated tube 2 is the same as the inner diameter of the flange 1; the outer diameters of the two ends of the corrugated pipe 2 are the same as the outer diameters of the flange flanges 1.
Preferably, the bellows 2 is in the form of a unitary axial expansion joint.
Preferably, the outer wall of the catheter main body 3 is provided with external threads matched with a catheter joint, and the outer part of the catheter main body 3 is provided with a limiting sealing ring 7 with an inner groove through welding.
Preferably, a sealing ring 6 is arranged inside the limit sealing ring 7, and the sealing ring 6 is a graphite sealing ring.
Preferably, the catheter adapter and the catheter body 3 are made of stainless steel materials, the inner wall of the catheter adapter and the catheter body 3 is subjected to polishing treatment, and the catheter adapter and the catheter body are subjected to passivation surface treatment.
Compared with the prior art, the utility model provides the easy-to-detach air conduit with the corrugated pipe, which has the beneficial effects that:
1. The corrugated pipe can effectively compensate pipe body displacement caused by thermal stress of a pipeline or vibration of an airplane, so that the risk of joint abrasion is reduced;
2. The guide pipe joint connected to the guide pipe through the threaded fit supports quick disassembly and replacement, so that maintenance personnel can conveniently maintain or replace the guide pipe at regular intervals, and the maintenance cost is greatly reduced.
Drawings
Fig. 1 is a schematic front view of a detachable air duct with bellows according to the present utility model.
Fig. 2 is a schematic front view of an air duct with bellows according to the present utility model.
Fig. 3 is a schematic vertical sectional view of a conveniently detached air duct with bellows according to the present utility model.
Fig. 4 is a schematic view of a partial structure of a fitting and a threaded mating surface of a main body of a duct with a bellows in an air duct of the present utility model.
In the figure: 1-a flange; 2-bellows; 3-a catheter body; 4-straight pipes; a 5-hexagonal flange; 6-sealing ring; 7-limit sealing rings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and example 1.
As shown in fig. 1, the application provides a detachable air conduit with a corrugated pipe, which comprises a conduit joint and a conduit main body, wherein the conduit joint comprises a flange 1, the corrugated pipe 2, a straight pipe 4 and a hexagonal flange 5; wherein:
The catheter connector is connected to the catheter main body in a matched manner; the flange 1 is connected to one end of the corrugated pipe 2 through welding, the other end of the corrugated pipe 2 is connected to the straight pipe 4 through welding, an inner thread surface is arranged inside the straight pipe 4 and is connected with the pipe body 3, and a hexagonal flange 5 is arranged outside the straight pipe 4 of the pipe joint.
Preferably, the flange 1 is fixed on the external interface side of the conduit joint in a welding manner, the port edge of the flange 1 protrudes at a preset angle outside the axial direction of the conduit body, and the flange 1 is in a circular tube shape in the radial direction.
Wherein the flange 1 protrudes outward in the axial direction of the pipe body by a preset angle in the range of 2 ° to 3 °.
Further, the inner diameter of the two ends of the corrugated pipe 2 is the same as the inner diameter of the flange 1; the outer diameters of the two ends of the corrugated pipe 2 are the same as the outer diameters of the flange flanges 1.
Further, the bellows 2 adopts a unitary axial expansion joint form.
Furthermore, the outer wall of the catheter main body 3 is provided with external threads matched with a catheter joint, and the outer part of the catheter main body 3 is provided with a limiting sealing ring 7 with an inner groove through welding.
Preferably, the limit sealing ring 7 is internally provided with a sealing ring 6, and the sealing ring 6 is made of graphite material.
Preferably, the flange edge 5 is chamfered.
Preferably, the catheter adapter and the catheter body 3 are made of stainless steel, and the inner wall of the catheter adapter and the catheter body 3 is subjected to polishing treatment and the catheter adapter and the catheter body are subjected to passivation surface treatment.
Example 1
The convenient-to-detach air conduit with the corrugated pipe shown in the attached drawings 1-4 comprises a flange 1, wherein the circular pipe side of the flange is welded with a section of corrugated pipe 2, the other end of the corrugated pipe 2 is welded with a section of straight pipe 4, the inner wall of the straight pipe 4 is provided with a thread surface, and the outer wall of the straight pipe is provided with a hexagonal flange 5. The flange 1, the bellows 2 and the straight pipe 4 are welded together to form a pipe joint. The catheter connector is connected with the catheter main body 3 through threads, and a thread surface and a limit sealing ring 7 are welded on the outer pipe wall of the port of the catheter main body 3. And a limit sealing groove is formed between the limit sealing ring 7 and the outer pipe wall of the catheter main body 3, and a sealing ring 6 is arranged in the limit sealing groove.
Preferably, the maximum outer diameter of the flange 1 should be determined according to the pipe body size, and the outer diameter of the bellows 2 should not exceed the maximum outer diameter of the flange 1. The inner diameter and the outer diameter of the straight pipe 4 are determined according to the inner diameter and the outer diameter of the catheter main body 3, and the inner diameter and the outer diameter of the limit sealing ring 7 are determined according to the inner diameter and the outer diameter of the straight pipe 4. In this example 1, the pipe body has an outer diameter of 50.8mm and a wall thickness of 1.5mm, so that the maximum outer diameter of the flange is 65.5mm, the port input inner diameter is 50.8mm, and the wall thickness is 0.9mm.
Preferably, the number and the size of the corrugations of the corrugated pipe 2 are determined by the practical application of the pipeline. The corrugated pipe has wave number of 3, outer diameter of 65.5mm, wave height of 14mm, wave thickness of 6mm and wave distance of 10mm.
Preferably, a sealing ring 6 is arranged in the limiting sealing groove, the sealing ring 6 is made of graphite material, and the size is determined by the limiting sealing groove. The sealing ring 6 of this example has an inner diameter of 50.8mm, an outer diameter of 51.8 mm, and a thickness of 0.8mm
Preferably, all components except the seal ring 6 should be made of stainless steel material with parallel passivation.
When the air guide pipe is used, firstly, the size of the air guide pipe is measured, then the limiting sealing ring 7 is welded on the guide pipe main body 3 according to the required size, the sealing ring 6 is placed in the limiting sealing groove, and the thread sealing glue is smeared on the thread surface of the guide pipe main body 3 according to the requirement. The screw thread on the inner wall of the straight pipe 4 is matched with the pipe body 3, and then the hexagonal flange 5 is clamped and rotated by a torque wrench to enable the pipe joint to be connected and sealed with the pipe body. The flange flanges 1 of the two pipes are matched and hooped relatively concentrically by using quick clamps between different pipes, so that the connection between the different pipes is completed.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The convenient-to-detach air conduit with the corrugated pipe is characterized by comprising a conduit connector and a conduit main body, wherein the conduit connector comprises a flange (1), the corrugated pipe (2), a straight pipe (4) and a hexagonal flange (5); wherein:
the catheter connector is connected to the catheter main body in a matched manner; the flange is characterized in that the flange (1) is connected to one end of the corrugated pipe (2) through welding, the other end of the corrugated pipe (2) is connected to the straight pipe (4) through welding, an inner threaded surface is arranged inside the straight pipe (4) and is connected with the pipe body (3), and a hexagonal flange (5) is arranged outside the straight pipe (4) of the pipe joint.
2. The easy-to-detach air duct according to claim 1, characterized in that the external interface side of the duct joint is fixed with a flange (1) by welding, the flange (1) is arc-shaped in the axial direction of the duct body and the port edge protrudes to the outside by a preset angle.
3. A removable air duct according to claim 2, characterized in that the flange (1) protrudes axially outwards of the tubular body by a preset angle in the range of 2 ° to 3 °.
4. The easy-to-detach air conduit according to claim 1, characterized in that the inner diameter of the two end pipe bodies of the corrugated pipe (2) is the same as the inner diameter of the flange (1); the outer diameter of the pipe body at the two ends of the corrugated pipe (2) is the same as that of the flange (1); the corrugated pipe (2) adopts a single axial expansion joint mode.
5. The easy-to-detach air conduit according to claim 1, characterized in that the outer wall of the conduit body (3) is provided with an external thread to be matched with the conduit joint, and the outside of the conduit body (3) is provided with a limit sealing ring (7) with an inner groove by welding.
6. The easy-to-detach air conduit according to claim 1, characterized in that a sealing ring (6) is arranged inside the limit sealing ring (7), and the sealing ring (6) is a graphite sealing ring.
7. The easy-to-detach air duct according to claim 1, characterized in that the duct joint and the duct body (3) are made of stainless steel material, and the inner walls of the duct joint and the duct body (3) are subjected to polishing treatment, and the duct joint and the duct body are subjected to passivation surface treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323094513.7U CN221171291U (en) | 2023-11-15 | 2023-11-15 | Easy-to-detach air conduit with corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323094513.7U CN221171291U (en) | 2023-11-15 | 2023-11-15 | Easy-to-detach air conduit with corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221171291U true CN221171291U (en) | 2024-06-18 |
Family
ID=91458515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323094513.7U Active CN221171291U (en) | 2023-11-15 | 2023-11-15 | Easy-to-detach air conduit with corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221171291U (en) |
-
2023
- 2023-11-15 CN CN202323094513.7U patent/CN221171291U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |