A rotary oil pipeline

Abstract

This utility model discloses a rotary fuel pipeline, including a bend assembly, bearing one, bearing two, bearing housing, core rod one, sleeve one, sleeve two, hose, core rod two, bolt, nut, washer, sealing gasket, sealing ring one, and sealing ring two. Bearing one and bearing two are located on the left and right sides of core rod one. The two bearings are respectively connected to the bend assembly and bearing housing. After the bend assembly and bearing housing are fixed with screws and nuts, core rod one can rotate clockwise and counterclockwise around the bearing housing. The sleeve, core rod, and hose are fixed by clamping the sleeve. When the wing is folded, the hose and core rod rotate clockwise and counterclockwise around the bearing housing, and fuel is normally transported in the pipeline. It features simple structure, light weight, and high space utilization.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport sealing technology, and more specifically, to a rotary pipeline for fluid transport. Background Technology

[0002] Currently, fuel lines are widely used in aircraft fuel systems to transport fuel and other media. However, when installed on folding wings, these lines are at risk of twisting, deformation, or even breakage due to wing rotation. Utility Model Content

[0003] This utility model provides a rotary oil pipeline, including a bend assembly, a first bearing, a second bearing, a bearing housing, a first core rod, a first sleeve, a second sleeve, a hose, a second core rod, bolts, nuts, washers, gaskets, a first sealing ring, and a second sealing ring. One end of the bend assembly is fixedly connected to the bearing housing by bolts and nuts, and the other end is connected to the machine body structure to form a fixed end. One end of the first core rod is clearance-fitted to the inner side of the bearing housing, and the other end is crimped to the first sleeve. The outer side of one end of the first core rod has a boss, which protrudes radially away from the central axis. The outer surface of the other end has multiple sealing protrusions surrounding the first core rod. The outer side of the first core rod also has an annular groove, which is located between the boss and the sealing protrusions and is close to the sealing protrusions. The inner side of the first sleeve has internal teeth that mate with the sealing protrusions and a flange that mates with the annular groove. The end of the hose is fitted with... A sleeve is fitted around the outer periphery of the hose, with an inner tooth located at the connection between the sealing protrusion and the hose. A flange engages with an annular groove. A bearing is positioned between the bend assembly and the core rod, and a bearing is positioned between the core rod and the bearing seat. The bearings are positioned on opposite sides of the protrusion. The other end of the hose is fitted around the core rod. The outer surface of the core rod in contact with the hose has multiple sealing protrusions surrounding it. The other end of the core rod has a protrusion that protrudes radially away from the central axis. An annular groove is also provided on the outer side of the core rod, between the protrusion and the sealing protrusion, and closer to the sealing protrusion. A sleeve is fitted around the hose in contact with the core rod. The inner side of the sleeve has an inner tooth that engages with the sealing protrusion and a flange that engages with the annular groove. Two bearings are connected to the bend assembly and bearing housing respectively. After the bend assembly and bearing housing are fixed with bolts and nuts, the mandrel can rotate around the bearing housing. This mainly solves the problem in aircraft fuel systems where, when the wings are folded, the pipeline rotates in both directions to complete the fuel transfer function. The relative rotation between the mandrel and the bearing housing increases the dry film lubricant on their rotating friction surfaces, reducing friction and wear, increasing rotational flexibility, and extending service life. The sleeve, mandrel, and hose are fixed by clamping the sleeve, causing it to deform and contract, thus securing the hose and mandrel. The other end of the hose is fixed in the same way by clamping the sleeve and mandrel.

[0004] Furthermore, sealing protrusion one and sealing protrusion two are barbed.

[0005] Furthermore, a sealing gasket is provided at the connection between the bend assembly and the bearing housing via bolts and nuts, and a sealing ring is provided at the axial contact point between the bend assembly and the bearing housing, with the sealing ring positioned within the sealing groove of the bend assembly. The bend assembly, bearing housing, and sealing ring form a seal to prevent fuel leakage.

[0006] Furthermore, a washer is provided between the nut and the bend assembly.

[0007] Furthermore, a second sealing ring is provided at the contact point between the bearing housing and the core rod, and the second sealing ring is placed in the sealing groove of the bearing housing.

[0008] The beneficial effects of this utility model are:

[0009] This utility model features a rotary fuel pipeline with one end fixed to the fuselage structure via a flange. Two bearings are connected to a bend assembly and a bearing housing, respectively. After the bend assembly and bearing housing are secured with bolts and nuts, the core rod can rotate forward and backward around the bearing housing, enabling the pipeline to rotate in both directions as the wing folds, thus completing the fuel transfer function. It features a simple structure, light weight, and high space utilization. Attached Figure Description

[0010] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0011] Figure 1 A schematic diagram of the rotary oil pipeline provided by this utility model;

[0012] Figure 2 A perspective view of the rotary oil pipeline provided by this utility model;

[0013] Figure 3 A schematic diagram of the core rod of the rotary oil pipeline provided by this utility model;

[0014] Figure 4 A schematic diagram of the core rod 2 of the rotary oil pipeline provided by this utility model;

[0015] In the attached diagram: 1-Bend assembly, 2-Bearing 1, 3-Bearing 2, 4-Bearing housing.

[0016] 5-Core rod 1, 501-Boss 1, 502-Sealing protrusion 1, 503-Annular groove 1

[0017] 6-Sleeve 1, 601-Internal Gear 1, 602-Flange 1

[0018] 7-Hose,

[0019] 8-Core rod II, 801-Boss II, 802-Sealing protrusion II, 803-Annular groove II

[0020] 81-Sleeve II, 811-Internal Gear II, 812-Flange II

[0021] 9- Bolt, 10- Nut, 11- Washer, 12- Sealing gasket, 13- Sealing ring one, 14- Sealing ring two. Detailed Implementation

[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0023] Please see Figure 1-4The figure shows a schematic diagram of the steel ball valve core pressure regulating assembly provided by this utility model, including a bend assembly 1, bearing 1 2, bearing 2 3, bearing seat 4, core rod 1 5, sleeve 1 6, hose 7, core rod 2 8, bolt 9, nut 10, washer 11, sealing gasket 12, sealing ring 1 13, and sealing ring 2 14. One end of the bend assembly 1 is fixedly connected to the bearing seat 4 by bolt 9 and nut 10. One end of the core rod 1 5 is clearance-fitted to the inner side of the bearing seat 4, and the other end is crimped to the sleeve 1 6. A boss 50 is provided on the outer side of one end of the core rod 1 5. 1. The boss 501 protrudes radially away from the central axis, and its other end outer surface is provided with multiple sealing protrusions 502 surrounding the core rod 5. The core rod 5 is also provided with an annular groove 503 on its outer side. The annular groove 503 is located between the boss 501 and the sealing protrusions 502, and is close to the side of the sealing protrusions 502. The inner side of the sleeve 6 is provided with internal teeth 601 that mate with the sealing protrusions 502, and also with flanges 602 that mate with the annular grooves 503. The end of the hose 7 is sleeved on the sealing protrusions 502. On the outer side, sleeve 6 is fitted around the outer periphery of hose 7, and internal teeth 601 are located at the connection between sealing protrusion 502 and hose 7. Flange 602 engages with annular groove 503 for secure clamping. Bearing 2 is positioned between the bend assembly 1 and core rod 5, and bearing 3 is positioned between core rod 5 and bearing seat 4. Bearing 2 and bearing 3 are respectively positioned on both sides of protrusion 501. The other end of hose 7 is fitted around core rod 8. The outer surface of core rod 8 in contact with hose 7 is provided with multiple sealing protrusions surrounding core rod 8. 802. A boss 801 is provided on the outer side of the other end of the second core rod 8. The boss 801 protrudes radially away from the central axis. An annular groove 803 is also provided on the outer side of the second core rod 8. The annular groove 803 is located between the boss 801 and the sealing protrusion 802, and is close to the sealing protrusion 802. A sleeve 81 is fitted on the outer side of the hose 7 that contacts the second core rod 8. The inner side of the sleeve 81 has internal teeth 811 that mate with the sealing protrusion 802, and also a flange 812 that mates with the annular groove 803. The two bearings are connected to the bend assembly 1 and the bearing seat 4 respectively. After the bend assembly 1 and the bearing seat 4 are fixed by bolts 9 and nuts 10, the first core rod 5 can rotate around the bearing seat 4. The relative rotation of the first core rod 5 and the bearing seat 4 increases the dry film lubricant on their rotating friction surfaces, reducing friction and wear, increasing rotational flexibility, and extending service life. The sleeve 6, core rod 5, and hose 7 are connected by a snap-fit ​​mechanism, which causes the sleeve 6 to deform and contract, thereby securing the hose 7 and core rod 5. The other end of the hose 7 is also secured by a snap-fit ​​mechanism using a sleeve 81 and core rod 8. The sealing protrusions 502 and 802 are barbed.

[0024] A sealing gasket 12 is provided at the connection between the bend assembly 1 and the bearing housing 4 via bolts 9 and nuts 10. A washer 11 is provided between the nut 10 and the bend assembly 1. A sealing ring 13 is provided at the axial contact point between the bend assembly 1 and the bearing housing 4, and the sealing ring 13 is placed in the sealing groove of the bend assembly 1. The bend assembly 1, the bearing housing 4, and the sealing ring 13 form a seal to prevent fuel leakage. A second sealing ring 14 is provided at the contact point between the bearing housing 4 and the core rod 5, and the sealing ring 14 is placed in the sealing groove of the bearing housing 4.

[0025] During operation, one end of the rotary fuel line is fixed to the fuselage and the other end is fixed to the wing. When the wing rotates, the rotating end of the line rotates with the wing in both directions, thus completing the fuel transfer function normally.

[0026] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, are all covered within the scope of the claims of this utility model.

Claims

1. A rotary oil pipeline, characterized by: The assembly includes a bend assembly (1), bearing one (2), bearing two (3), bearing seat (4), core rod one (5), sleeve one (6), hose (7), core rod two (8), bolts (9), nuts (10), washers (11), gaskets (12), sealing ring one (13), and sealing ring two (14). One end of the bend assembly (1) is fixedly connected to the bearing seat (4) by bolts (9) and nuts (10), and the other end is connected to the machine body structure. One end of the core rod one (5) is clearance-fitted to the inner side of the bearing seat (4), and the other end is crimped to the sleeve one (6). One end of the core rod one (5) is provided with a boss one (501) on the outer side. One (501) protrudes radially away from the central axis, and the outer surface of the other end is provided with a plurality of sealing protrusions (502) surrounding the core rod (5). The outer side of the core rod (5) is also provided with an annular groove (503). The annular groove (503) is located between the boss (501) and the sealing protrusion (502) and is close to the sealing protrusion (502). The inner side of the sleeve (6) is provided with an internal tooth (601) that mates with the sealing protrusion (502), and also with a flange (602) that mates with the annular groove (503). The end of the hose (7) is sleeved on the outer side of the sealing protrusion (502). The inner teeth (601) are provided at the connection between the sealing protrusion (502) and the hose (7), and the flange (602) is engaged with the annular groove (503). The bearing (2) is placed between the bend assembly (1) and the core rod (5), and the bearing (3) is placed between the core rod (5) and the bearing seat (4). The bearing (2) and the bearing (3) are respectively placed on both sides of the protrusion (501). The other end of the hose (7) is sleeved on the outside of the core rod (8). The outer surface of the core rod (8) in contact with the hose (7) is provided with a plurality of sealing protrusions (2) surrounding the core rod (8). 802), the other end of the core rod (8) is provided with a boss (801) on the outer side. The boss (801) protrudes radially away from the central axis. The outer side of the core rod (8) is also provided with an annular groove (803). The annular groove (803) is located between the boss (801) and the sealing protrusion (802) and is close to the sealing protrusion (802). The hose (7) is sleeved on the outer side of the core rod (8). The inner side of the sleeve (81) is provided with an internal tooth (811) that cooperates with the sealing protrusion (802) and a flange (812) that cooperates with the annular groove (803).

2. The rotary oil transfer line of claim 1, wherein: The sealing protrusion one (502) and sealing protrusion two (802) are barbed.

3. The rotary oil transfer line of claim 1, wherein: A sealing gasket (12) is provided at the connection between the pipe bending assembly (1) and the bearing seat (4) via bolts (9) and nuts (10). A sealing ring (13) is provided at the axial contact point between the pipe bending assembly (1) and the bearing seat (4). The sealing ring (13) is placed in the sealing groove of the pipe bending assembly (1).

4. The rotary oil pipeline according to claim 1, characterized in that: A washer (11) is provided between the nut (10) and the bend assembly (1).

5. The rotary oil pipeline according to claim 1, characterized in that: A second sealing ring (14) is provided at the contact point between the bearing seat (4) and the core rod (5), and the second sealing ring (14) is placed in the sealing groove of the bearing seat (4).

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