An aircraft conduit flexible connector

Abstract

The present application relates to the technical field of pipeline connector, and specifically discloses an aircraft pipeline flexible connector, which comprises an adapter pipe, the adapter pipe is externally sleeved with a heat insulation pipe, the adapter pipe is a flexible pipe body, the heat insulation pipe is a metal bellows structure, a plurality of support structures are detachably installed on the adapter pipe, and a plurality of butt joint structures are detachably installed between the support structures, four concave support frames are used, are relatively staggered and are inserted, form a cross-shaped structure, are relatively clamped in the middle space of the cross-shaped structure at both ends of the adapter pipe, and can be used for butt joint with other structures; the four concave support frames are installed in the middle part of the adapter pipe, are used for intermittent support, prevent contact with the externally sleeved heat insulation pipe, and achieve the heat insulation effect; and the support frame can be further provided with a sleeve seat, a liquid cylinder is installed on the sleeve seat and is used for loading liquid to absorb heat and achieve heat insulation; a fan is installed on the sleeve seat, the fan is located between the end parts of the staggered support frames, and is used for forming airflow flow and heat dissipation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline connector, in particular to a kind of aircraft pipeline flexible connector. BACKGROUND

[0002] Aircraft pipeline system is the core component for ensuring normal operation of aircraft, is widely used in fuel delivery, hydraulic control, cooling circulation, pneumatic regulation and other key working conditions, and its connection reliability, environmental adaptability is directly related to the flight safety and operation stability of aircraft;

[0003] Flexible connector as the core connecting component in aircraft pipeline system, needs to meet the strict requirements of compact aircraft assembly space, complex working conditions (long-term withstand vibration, temperature fluctuation, frequent bending), convenient maintenance etc.;However, the existing flexible pipeline connection, support protection performance is insufficient: the heat insulation layer and adapter pipe of traditional flexible connector are mostly directly sleeved structure, lack effective spacing support mechanism;In the vibration in the process of aircraft flight, pipeline assembly bending or long-term use, heat insulation layer is easy to adhere to the surface of adapter pipe, friction, not only will lead to the attenuation of heat insulation effect, but also may cause the outer wall of adapter pipe to wear, cause leakage and other safety hazards, especially in high temperature pipeline;The butt joint structure of existing connector is mostly fixed welding or multi-bolt fastening design, and the disassembly process is cumbersome, and simple plug-in is easy to loosen and leak. SUMMARY

[0004] The purpose of the present application is to provide a kind of aircraft pipeline flexible connector, to solve the problems raised in the above background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a kind of aircraft pipeline flexible connector, including adapter pipe, the adapter pipe is externally sleeved with heat insulation pipe, the adapter pipe is flexible pipe body, the heat insulation pipe is metal bellows structure, a plurality of support structures are detachably installed on the adapter pipe, and the support structure is located in the adapter pipe, a plurality of butt joint structures are detachably installed between the support structure;Wherein, support structure clamps the outside of adapter pipe for supporting heat insulation pipe, prevent heat insulation pipe from contacting with adapter pipe, the support structure and butt joint structure cooperate to realize pipeline quick butt joint fixed, the support structure can also realize auxiliary heat dissipation, heat insulation or only be used for the butt joint of adapter pipe according to actual demand.

[0006] Preferably, the support structure includes two pairs of support frames, several adjusting seats, several first bolts, several second bolts, several sleeves, several adapter screws, and several adapter nuts; both pairs of support frames are concave structures, and the ends of the support frames are chamfered to prevent damage to the external adapter pipes. One end of each support frame is wider than the other end. A cross-shaped adjusting groove is formed through the middle of one end of each support frame and connects to the other end. Each end of the support frame is provided with an adapter hole, and the adapter hole is opposite to the middle of the adjusting groove. The two pairs of support frames are staggered and interlocked, forming a grid-like structure with eight ends having adapter holes. All the adjusting seats are H-shaped. Several adjusting seats are movably inserted into the adjusting grooves of the support frame, and the adjusting seats are located at the opposite intersection of the support frame. Several first bolts are screwed onto one side wall of the adjusting seat, and the first bolts are pressed against one side wall of the support frame. Several second bolts are movably inserted through the middle of the other end of the adjusting seat, and the second bolts are movably inserted through the adjusting groove. Several second bolts are pressed against the inner wall of the other end of the support frame. Several sleeves are detachably fitted onto both ends of the support frame. Several adapter screws are movably inserted through adapter holes for docking of two sets of support structures. Several adapter nuts are screwed onto both ends of the adapter screws for fixing.

[0007] Preferably, the support structure further includes several liquid cylinders and several fans; the several liquid cylinders are detachably screwed onto one end of the sleeve, and the liquid cylinders can be filled with liquid for heat absorption; the side walls of the several fans are provided with mounting screws, and the several fans are screwed onto the side walls of the sleeve through mounting screws, and the fans are respectively located between one end of the support frame.

[0008] Preferably, the support structure forms a grid-like structure through the support frame, and the transfer pipe is clamped in the middle of the grid-like structure.

[0009] Preferably, the chamfered portions at both ends of the support frame are fitted and supported against the inner walls of both ends of the heat insulation pipe.

[0010] Preferably, the docking structure comprises a docking slide, a docking screw, a pair of moving seats, a third bolt and a pair of hanging rods; the docking slide is rectangular, a sliding groove is formed in the middle of the docking slide, one end of the docking screw is movably penetrated through the middle of the docking slide, and the docking screw can rotate, an internal hexagonal driving port is arranged at one end of the docking screw, a pair of the moving seats are symmetrically arranged on the docking slide, and the moving seats are respectively rotatably connected with the docking screw, the pair of the moving seats are relatively moved by rotating the docking screw, a mounting hole is formed in the middle of the other end of each of the pair of the moving seats, the third bolt is rotatably connected with the side wall of the moving seat, and the third bolt is connected with the mounting hole, one end of the pair of the hanging rods is detachably inserted into the mounting hole, and the hanging rod is fixed by the third bolt, and the other end of the hanging rod is detachably inserted into the adapter hole of the support frame.

[0011] Preferably, the docking structure is connected by being inserted into the corresponding support frame between the two groups of support structures through the hanging rod.

[0012] Preferably, the support structure is provided with a corresponding number according to the length of the adapter pipe and the heat insulation pipe to prevent the heat insulation pipe from contacting the adapter pipe when being bent.

[0013] Preferably, the support frame is provided with a docking structure or an adapter screw according to the connection requirement.

[0014] The aircraft pipeline flexible connector provided by the application comprises four concave support frames, which are relatively staggered and inserted to form a cross-shaped structure, and the cross-shaped structure is relatively clamped at both ends of an adapter pipe through the middle space of the cross-shaped structure, so that the cross-shaped structure can be used for docking with other structures; the four concave support frames are arranged in the middle of the adapter pipe to provide intermittent support and prevent the heat insulation pipe from contacting the adapter pipe, so that the heat insulation effect is achieved; the support frame can be further provided with a sleeve seat, a liquid cylinder is arranged on the sleeve seat to load liquid for internal heat absorption and heat insulation, a fan is arranged on the sleeve seat, the fan is located between the ends of the staggered support frames, and the fan is used for forming airflow flow and heat dissipation; and according to actual installation and fixing requirements, the support structures can be stably connected through an adapter screw and an adapter nut to realize relative clamping of the pipeline end for docking; the support structures can also be quickly clamped and connected through a docking structure, which is convenient for later disassembly and maintenance, and the following effects can be achieved:

[0015] 1. The four concave support frames are relatively staggered and inserted to form a cross-shaped structure, without the need for complex transmission components, and only mechanical splicing is needed to realize two key functions: one is that the middle space clamps the adapter pipe, directly serving as a flange to replace the traditional docking component and simplifying the structural complexity of pipeline docking; and the other is that the end of the support frame is attached to the inner wall of the heat insulation pipe to form intermittent support, which fundamentally avoids the contact between the heat insulation pipe and the adapter pipe when being bent or vibrated, guarantees the structural stability of the heat insulation pipe, strengthens the heat insulation effect, and solves the structural redundancy problem caused by the separation of traditional connector support and docking.

[0016] 2. The support structure realizes functional expansion through a detachable sleeve, and has strong work condition adaptability:

[0017] Select heat insulation and heat absorption as needed: after the sleeve is screwed with the liquid cylinder, the heat insulation effect can be enhanced by filling heat absorbing liquid inside, which is suitable for high temperature pipeline scenes; after the sleeve is installed with a fan, directional airflow is formed by the layout of the fan between the end parts of the support frame, which quickly takes away heat and is suitable for active heat dissipation conditions; without overall replacement of the connector, only by disassembling the liquid cylinder and the fan, the connector can be switched between simple butt joint, heat insulation, heat dissipation and heat insulation, and has strong versatility.

[0018] 3. Two kinds of detachable connection modes are designed for different installation and maintenance needs: through the cooperation of the adapter screw, the adapter nut and the adapter hole penetrating the support frame, the connection strength is high, the anti-vibration ability is strong, and it is suitable for the long-term fixing needs of the key parts of the aircraft pipeline; quick clamping is realized by means of the butt joint structure, the distance between the moving seats can be adjusted by rotating the inner hexagonal drive port, the hanging rod is inserted and fixed without complex tools, which greatly reduces the difficulty and time consumption of later disassembly and maintenance, and improves the pipeline maintenance efficiency.

[0019] 4. The number of support structures can be flexibly adjusted according to the length of the adapter pipe and the heat insulation pipe, without the need for custom-made special connectors, which can meet the intermittent support needs of pipelines of different lengths; at the same time, the cross-shaped structure can fine-tune the clamping distance through the adjusting seat and the first and second bolts, which indirectly adapts to adapter pipes of different diameters, further expanding the application range of the product and reducing the adaptation cost of multiple specifications of pipelines.

[0020] 5. All core components are designed to be detachable, which can be replaced individually when damaged, without the need to scrap the entire connector, reducing maintenance costs; secondly, complex tools are not needed during installation, and only simple operations such as installing bolts and inserting are needed to complete assembly, improving assembly efficiency; thirdly, during later maintenance, functional components or connection structures can be disassembled as needed, with low operation threshold, which adapts to the efficient needs of aircraft maintenance scenes. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the assembly structure of the present application;

[0022] Figure 2 is a butt joint display diagram of the support structure of the present application;

[0023] Figure 3 is a support structure display diagram of the present application;

[0024] Figure 4 is a butt joint display diagram of the support structure and the butt joint structure of the present application;

[0025] Figure 5Split structure schematic diagram of support structure of the application;

[0026] Figure 6 Display diagram of adjusting seat of the application;

[0027] Figure 7 Split structure schematic diagram of docking structure of the application;

[0028] Figure 8 For Figure 2 The local enlarged view at A in FIG. 1.

[0029] In the figure: 1, adapter pipe, 2, heat insulation pipe, 3, support structure, 31, support frame, 32, adjusting seat, 33, first bolt, 34, second bolt, 35, sleeve, 36, liquid cylinder, 37, fan, 38, adapter screw, 39, adapter nut, 4, docking structure, 41, docking slide, 42, docking screw, 43, moving seat, 44, third bolt, 45, hanging rod, 5, adjusting groove, 6, adapter hole, 7, mounting hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0031] Please refer to Figures 1-8 The application provides a technical solution: an aircraft pipeline flexible connector, comprising an adapter pipe 1, the adapter pipe 1 is externally sleeved with a heat insulation pipe 2, the adapter pipe 1 is a flexible pipe body, the heat insulation pipe 2 is a metal bellows structure, a plurality of support structures 3 are detachably installed on the adapter pipe 1, and the support structures 3 are located in the adapter pipe 1, and a plurality of docking structures 4 are detachably installed between the support structures 3; wherein the support structures 3 clamp the outside of the adapter pipe 1 for supporting the heat insulation pipe 2, preventing the heat insulation pipe 2 from contacting the adapter pipe 1, the support structures 3 and the docking structures 4 cooperate to realize rapid pipeline docking and fixing, and the support structures 3 can also realize auxiliary heat dissipation, heat insulation or only be used for docking of the adapter pipe 1 according to actual needs.

[0032] As a preferred further, the support structure 3 comprises two pairs of support frames 31, a plurality of adjusting seats 32, a plurality of first bolts 33, a plurality of second bolts 34, a plurality of sleeve seats 35, a plurality of liquid cylinders 36, a plurality of fans 37, a plurality of adapter screws 38 and a plurality of adapter nuts 39; the two pairs of support frames 31 are concave structures, and the end of the support frame 31 is provided with a chamfer, which is used to prevent damage to the external adapter pipe 1, one end of the support frame 31 is wider than the other end, and a cross-shaped adjusting slot 5 is provided in the middle of one end of the support frame 31, which is in communication with the other end, and the end of the support frame 31 is provided with an adapter hole 6, and the adapter hole 6 is opposite to the middle of the adjusting slot 5, the two pairs of support frames 31 are relatively staggered and inserted, and the two pairs of support frames 31 form a cross-shaped structure after being inserted, and have eight ends provided with adapter holes 6, the plurality of adjusting seats 32 are H-shaped, the plurality of adjusting seats 32 are respectively movably inserted into the adjusting slot 5 of the support frame 31, and the adjusting seat 32 is located at the relatively intersecting part of the support frame 31, the plurality of first bolts 33 are respectively screwed on one end of the adjusting seat 32, and the first bolt 33 is tightly pressed against one end of the support frame 31, the plurality of second bolts 34 are respectively movably penetrated through the other end of the adjusting seat 32, and the second bolt 34 is movably penetrated through the adjusting slot 5, the plurality of second bolts 34 are respectively tightly pressed against the other end of the support frame 31, the plurality of sleeve seats 35 are respectively detachably sleeved on the two ends of the support frame 31, the plurality of liquid cylinders 36 are respectively detachably screwed on one end of the sleeve seat 35, and the liquid cylinder 36 can be filled with liquid for heat absorption, the plurality of fans 37 are provided with mounting screws on the side wall, the plurality of fans 37 are screwed on the side wall of the sleeve seat 35 through the mounting screws, and the fan 37 is located between the one end of the support frame 31, the plurality of adapter screws 38 are movably penetrated through the adapter hole 6 at one end, which is used for the butt joint of the two groups of support structures 3, and the plurality of adapter nuts 39 are respectively screwed on both ends of the adapter screw 38 for fixation.

[0033] More specifically, when the heat insulation effect needs to be enhanced, a plurality of liquid cylinders 36 are respectively screwed on one end of the sleeve seat 35, and heat-absorbing liquid (such as heat-conducting oil) is filled in the liquid cylinder 36, and the heat exchange effect of the heat-absorbing liquid is used to achieve auxiliary heat insulation.

[0034] When the heat dissipation function needs to be realized, mounting screws are provided on the side wall of the plurality of fans 37 in advance, the fan 37 is screwed on the side wall of the sleeve seat 35 through the mounting screw, and each fan 37 is located between the adjacent end of the support frame 31, and the rotation of the fan 37 forms a directional airflow, which quickly carries away the heat around the pipeline and the support structure.

[0035] When only the basic docking function needs to be implemented, only the sleeve 35 can be installed, and the liquid cylinder 36 and the fan 37 are not assembled; one end of each of the plurality of adapter screws 38 is movably inserted through the adapter hole 6 at the end of the support frame 31, for realizing the docking and fixing between the two groups of support structures 3; during assembly, after the adapter screw 38 is inserted through the adapter holes 6 of the two groups of corresponding support structures 3, the adapter nut 39 is screwed at both ends of the adapter screw 38, and the adapter nut 39 is tightened to realize the firm connection of the two groups of support structures 3, thereby ensuring the stability of the pipeline docking.

[0036] Through the above assembly process, the support structure 3 forms a modular assembly with stable structure and expandable function, the middle part of the well-shaped structure is used for clamping the adapter pipe 1, and the chamfered part at the end of the support frame 31 is in contact with the inner wall of the two ends of the heat insulation pipe 2 for support, which effectively prevents the heat insulation pipe 2 from directly contacting the adapter pipe 1; at the same time, the working mode can be flexibly switched by disassembling the liquid cylinder 36 and the fan 37, and the stable docking between the support structures can be realized by the adapter screw 38 and the adapter nut 39, which fully meets the complex working condition requirements of the aircraft pipeline system.

[0037] As a preferred solution, further, the support structure 3 forms a well-shaped structure through the support frame 31, the adapter pipe 1 is clamped in the middle part of the well-shaped structure, the chamfered part at both ends of the support frame 31 is in contact with the inner wall of both ends of the heat insulation pipe 2 for support, and the support structure 3 is provided with a corresponding number according to the length of the adapter pipe 1 and the heat insulation pipe 2, to prevent the heat insulation pipe 2 from contacting the adapter pipe 1 in the bending process.

[0038] As a preferred solution, further, the docking structure 4 includes a docking sliding seat 41, a docking screw 42, a pair of moving seats 43, a third screw 44, and a pair of hanging rods 45; the docking sliding seat 41 is rectangular, and a sliding groove is formed in the middle part of the docking sliding seat 41, one end of the docking screw 42 is movably inserted through the middle part of the docking sliding seat 41, and the docking screw 42 can rotate, the one end of the docking screw 42 is provided with an internal hexagonal driving port, a pair of moving seats 43 are symmetrically arranged on the docking sliding seat 41, and the moving seats 43 are respectively screwed with the docking screw 42, the pair of moving seats 43 are relatively moved by rotating the docking screw 42, a mounting hole 7 is formed in the middle part of the other end of each of the pair of moving seats 43, the third screw 44 is screwed on the side wall of the moving seat 43, and the third screw 44 is connected with the mounting hole 7, and one end of each of the pair of hanging rods 45 is detachably inserted into the mounting hole 7, and the hanging rod 45 is fixed by the third screw 44, and the other end of the hanging rod 45 is detachably inserted into the adapter hole 6 of the support frame 31.

[0039] As a preferred solution, further, the docking structure 4 is connected by being inserted into the corresponding support frame 31 between the two groups of support structures 3 through the hanging rod 45, and the support frame 31 is provided with the docking structure 4 or the adapter screw 38 according to the connection requirement.

[0040] More specifically, one end of the docking screw rod 42 is inserted through the middle of the docking slide 41 from one side of the docking slide 41, so that the docking screw rod 42 is rotatably connected with the docking slide 41, ensuring that the docking screw rod 42 does not jam when rotating and does not come off the docking slide 41; a pair of moving seats 43 are inserted into the sliding grooves at both ends of the docking slide 41, so that the internal threads on the inner side walls of the moving seats 43 are precisely screwed with the external threads of the docking screw rod 42, ensuring that the moving seats 43 can smoothly slide along the sliding grooves without jamming or loosening; according to the distance between the two groups of support structures 3 to be docked, a hanging rod 45 of an appropriate length is cut, and one end of the hanging rod 45 is inserted into the mounting hole 7 of each moving seat 43, and the insertion depth is sufficient to ensure that the hanging rod 45 is stable and does not shake; the third bolt 44 on the side wall of the moving seat 43 is tightened, so that the screw end of the third bolt 44 tightly presses against the side wall of the hanging rod 45, and the hanging rod 45 is firmly fixed with the moving seat 43 through friction, completing the overall assembly of the docking structure 4.

[0041] The docking structure 4 is detachably connected with the support structure 3, realizing the quick docking of the two groups of support structures 3, and then completing the connection of the pipeline. The specific cooperation logic is as follows:

[0042] Before docking, ensure that the two groups of support structures 3 to be docked are respectively clamped at the ends of the corresponding adapter pipes 1, and that the end of the support frame 31 of the support structure 3 has a adapter hole 6; the operator inserts a hexagonal wrench into the hexagonal driving port of the docking screw rod 42, rotates the docking screw rod 42, adjusts the distance between the two moving seats 43, and makes the other end of the hanging rod 45 accurately align with the adapter holes 6 of the corresponding support frames 31 of the two groups of support structures 3; the other end of the hanging rod 45 is inserted into the corresponding adapter holes 6 of the two groups of support structures 3, and after insertion, the hanging rod 45 is tightly fitted with the adapter holes 6 without obvious gaps;

[0043] If further improvement of docking stability is needed, the docking screw rod 42 can be adjusted again to slightly tension the moving seat 43 and the hanging rod 45, ensuring that the two groups of support structures 3 do not displace after docking, and thus ensuring the sealing and stability of the pipeline docking.

[0044] The detailed connection means is a known technology in the art, and the working principle and process are described below. The specific work is as follows.

[0045] First, the support frames 31 in the support structure 3 are relatively inserted and staggered, and the adjustment seat 32 located in the adjustment slot 5 of the support frame 31 is moved to the staggered position of the two support frames 31, then the second bolt 34 is inserted through the adjustment seat 32, so that the adjustment seat 32 is tightly fixed on the corresponding another support frame 31, and at the same time, the first bolt 33 is tightly fixed on the side wall of the support frame 31 carrying the adjustment seat 32 to fix the adjustment seat 32, thereby realizing the positioning of the adjustment seat 32 and the fixing of the second bolt 34, and keeping the stable connection of the two relatively staggered support frames 31;

[0046] Four support frames 31 are combined to form a cross-shaped structure; the middle of the cross-shaped structure is used to clamp the two ends of the flexible adapter pipe 1 that needs to be installed; then, by corresponding with the support frames 31 installed on the corresponding pipelines, the adapter screw rod 38 is caused to pass through the adapter hole 6 at the end of the support frame 31, respectively, and then the adapter nut 39 is used to realize the butt joint, maintain the stable butt joint of the adapter pipe 1 and the end of the corresponding pipeline, and form eight ends after the cross-shaped structure is formed, which ensures the stability (in order to prevent slipping, the two ends of the adapter pipe 1 and the end of the butt joint pipeline are preferably provided with a protruding stop ring for clamping);

[0047] According to the length of the adapter pipe 1, a plurality of support structures 3 can also be added, and then according to the length of the support frame 31, an outer heat insulation pipe 2 with a corresponding diameter is set, so that the heat insulation pipe 2 is sleeved outside the plurality of support structures 3, that is, the heat insulation pipe 2 is sleeved outside the adapter pipe 1, and the adapter pipe 1 and the heat insulation pipe 2 are not in direct contact, and the flexible connection is ensured, so that there is no relative contact when bending and vibrating, and the heat insulation effect is improved and damage is prevented;

[0048] At the same time, the liquid cylinder 36 can also be installed by means of the sleeve seat 35, so that the liquid cylinder 36 is filled with liquid for heat absorption and is arranged at the end of the support frame 31; a fan 37 can also be installed on the sleeve seat 35 to form airflow to dissipate heat;

[0049] After the support structure 3 is installed, the butt joint can also be assembled by using the assembled butt joint structure 4, that is, according to the distance between the corresponding support structures 3 after the butt joint of the pipeline ends, the butt joint screw rod 42 is rotated to drive the two moving seats 43 to move relative to each other in the butt joint sliding seat 41, so as to drive the hanging rod 45 installed on the moving seat 43 by the third bolt 44 to move relative to each other, so that the other end of the hanging rod 45 is inserted into the adapter hole 6 of the support frame 31, and direct connection and limiting are performed, so as to achieve stable butt joint; according to the actual interval requirement, the length of one end of the hanging rod 45 can also be cut to change, so that one end of the hanging rod 45 is inserted into the mounting hole 7 of the moving seat 43, and is fixed by the third bolt 44, thereby changing the relative distance of the hanging rod 45 after the moving seat 43 is relatively attached.

[0050] In summary, when applied to the pipeline of the critical part of the aircraft (such as fuel delivery, hydraulic control, etc. which needs to be fixed for a long time), the connection mode of the adapter screw rod 38 and the adapter nut 39 is preferred, the adapter screw rod 38 penetrates through the adapter hole 6 of the two groups of support frames 31, and is fixed by cooperating with the adapter nut 39, so as to realize stable butt joint with high strength and anti-vibration, and ensure the reliability of the pipeline connection during flight; when applied to the pipeline which needs to be frequently maintained and disassembled (such as cooling circulation, pneumatic adjustment, etc. which has a high maintenance frequency), the connection mode of the butt joint structure 4 is preferred, the quick butt joint is realized by the insertion and installation of the hanging rod 45 and the fine adjustment of the butt joint screw rod 42, the disassembly can be completed without complex tools, the maintenance time is greatly reduced, and the maintenance efficiency is improved; the two connection modes can be freely switched according to the installation position of the pipeline, the working condition requirement and the maintenance demand, and the cooperation relationship between the support structure 3 and the adapter pipe 1 and the heat insulation pipe 2 is not changed, so that the stability and adaptability of the overall structure of the connector are ensured.

[0051] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible connector for aircraft piping, characterized in that, Includes a transfer pipe (1), which is fitted with an insulation pipe (2). The transfer pipe (1) is a flexible pipe body, and the insulation pipe (2) is a metal corrugated pipe structure. Several support structures (3) are detachably installed on the transfer pipe (1), and the support structures (3) are located inside the transfer pipe (1). Several docking structures (4) are detachably installed between the support structures (3). Among them, the support structure (3) clamps the outside of the adapter pipe (1) to support the heat insulation pipe (2) and prevent the heat insulation pipe (2) from contacting the adapter pipe (1). The support structure (3) and the docking structure (4) work together to achieve quick docking and fixing of the pipeline. The support structure (3) can also be used to assist in heat dissipation, heat insulation or only for docking of the adapter pipe (1) according to actual needs. The support structure (3) includes two pairs of support frames (31), several adjusting seats (32), several first bolts (33), several second bolts (34), several sleeves (35), several adapter screws (38), and several adapter nuts (39). Both pairs of support frames (31) are concave structures, and the ends of the support frames (31) are chamfered to prevent damage to the external connecting pipe (1). One end of the support frame (31) is wider than the other end. A cross-shaped adjustment groove (5) is opened through the middle of one end of the support frame (31) and connected to the other end. The ends of the support frames (31) are provided with transition holes (6), and the transition holes (6) are opposite to the middle of the adjustment groove (5). The two pairs of support frames (31) are staggered and inserted into each other. After the two pairs of support frames (31) are inserted into each other, they form a grid structure and have eight ends with transition holes (6). Several adjustment seats (32) are H-shaped and are movably inserted into the adjustment grooves (5) of the support frames (31). The seat (32) is located at the opposite intersection of the support frame (31). Several first bolts (33) are respectively screwed onto one side wall of the adjusting seat (32), and the first bolts (33) are pressed against one side wall of the support frame (31). Several second bolts (34) are respectively movably inserted through the middle of the other end of the adjusting seat (32), and the second bolts (34) are movably inserted through the adjustment groove (5). Several second bolts (34) are respectively pressed against the inner wall of the other end of the support frame (31). Several sleeves (35) are respectively detachably fitted onto both ends of the support frame (31). Several adapter screws (38) are respectively movably inserted through the adapter hole (6) for docking of the two sets of support structures (3). Several adapter nuts (39) are respectively screwed onto both ends of the adapter screws (38) for fixing.

2. The flexible connector for aircraft piping according to claim 1, characterized in that, The support structure (3) also includes several liquid cylinders (36) and several fans (37). Several liquid cylinders (36) are detachably screwed onto one end of the sleeve (35), and liquid can be filled into the liquid cylinder (36) for heat absorption. Several fans (37) are provided with mounting screws on their side walls. Several fans (37) are screwed onto the side wall of the sleeve (35) by mounting screws, and the fans (37) are located between one end of the support frame (31).

3. The flexible connector for aircraft piping according to claim 2, characterized in that, The support structure (3) forms a grid structure through the support frame (31), and the transfer pipe (1) is fitted in the middle of the grid structure.

4. The flexible connector for aircraft piping according to claim 3, characterized in that, The chamfered portions at both ends of the support frame (31) are fitted and supported against the inner walls at both ends of the heat insulation pipe (2).

5. A flexible connector for aircraft piping according to claim 4, characterized in that, The docking structure (4) includes a docking slide (41), a docking screw (42), a pair of movable seats (43), a third bolt (44), and a pair of hanging rods (45); The docking slide (41) is rectangular, and a groove is provided in the middle of the docking slide (41). One end of the docking screw (42) movably passes through the middle of the docking slide (41), and the docking screw (42) can rotate. One end of the docking screw (42) is provided with an internal hexagonal drive port. A pair of movable seats (43) are symmetrically arranged on the docking slide (41), and the movable seats (43) are respectively screwed to the docking screw (42). The pair of movable seats (43) are connected by the docking screw (42). 42) Rotate to move relative to each other. The other end of each pair of movable seats (43) is provided with a mounting hole (7). The third bolt (44) is screwed onto the side wall of the movable seat (43) and connected to the mounting hole (7). One end of each pair of hanging rods (45) is detachably inserted into the mounting hole (7) and fixed by the third bolt (44). The other end of the hanging rod (45) is detachably inserted into the adapter hole (6) of the support frame (31).

6. A flexible connector for aircraft piping according to claim 5, characterized in that, The docking structure (4) is connected to the corresponding support frame (31) between the two sets of support structures (3) by inserting a hanging rod (45).

7. A flexible connector for aircraft piping according to claim 6, characterized in that, The support structure (3) is set in a corresponding number according to the length of the transfer pipe (1) and the heat insulation pipe (2) to prevent the heat insulation pipe (2) from contacting the transfer pipe (1) during bending.

8. A flexible connector for aircraft piping according to claim 7, characterized in that, The support frame (31) is equipped with a docking structure (4) or a transition screw (38) according to the connection requirements.

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