Airborne air supply steering switching device and case assembly

Abstract

The invention belongs to the technical field of airborne equipment installation, and particularly relates to an airborne air supply steering switching device and a case assembly. The case assembly comprises a case and the airborne air supply steering switching device, and an equipment installation frame air cavity communicating with an air outlet is formed in the rear end of an equipment installation frame; a butt joint pipe connecting air cavity communicated with the equipment mounting frame air cavity is formed in the side portion, in the airborne equipment disassembling and assembling direction, of the equipment mounting frame, the side, away from the equipment mounting frame, of the butt joint pipe connecting air cavity is communicated with one end of a ventilation pipe, and the other end of the ventilation pipe is an air inlet. For airborne equipment needing forced air cooling, when a ventilation pipeline is designed, the length of an air duct is shortened by splitting and turning the air duct, and the space utilization rate on the machine is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of airborne equipment installation, and in particular relates to an airborne air supply steering adapter and a chassis assembly. Background Art

[0002] The prior art discloses the following related patents for airborne equipment installation structures capable of ventilation:

[0003] Prior art 1: The invention is named "A vibration reduction and air supply mounting bracket for airborne equipment" and the patent application number is CN202010411547.6, which solves the problems of poor wear resistance of the mounting surface of the existing airborne equipment mounting bracket under strong vibration conditions, short service life of the positioning pins, and poor air supply and heat dissipation effect of the mounting bracket. The connection method between the external ventilation duct and the ventilation duct mounting base of this patent is welding and fixing. The airborne equipment ventilation duct is inserted into the hollow cylinder of the ventilation duct mounting base, and an air outlet is opened on the rear mounting plate. The fixed ring platform of the ventilation duct mounting base is fitted with the outer surface of the rear mounting plate, and the butt end of the airborne equipment ventilation duct passes through the air outlet and contacts with the sponge rubber plate inside the ventilation duct mounting base to realize the connection between the airborne equipment ventilation duct and the external ventilation duct. It can be seen that the external ventilation duct in this patent is located at the rear side of the equipment mounting frame. Since the space at the rear side of the equipment mounting frame is small, in order to realize the connection with the air source, the external ventilation duct needs to be extended out of the rear side of the equipment mounting frame and then connected to the air source through a pipeline. The length of the pipeline extending from the rear side of the equipment mounting frame is relatively large and needs to occupy a certain space. Space needs to be reserved between the inner wall of the cabin and the equipment mounting frame, which wastes space on the aircraft.

[0004] Prior art 2: The invention named "A ventilation adapter device" and the patent with application number CN202020809933.6 include a ventilation duct mounting base, an external ventilation duct and a sponge rubber plate. The ventilation adapter can realize the entry of cooling gas on the aircraft into the airborne equipment to achieve heat dissipation. A sponge rubber plate is installed at the part where the ventilation duct of the airborne equipment is in contact with the inside of the ventilation duct mounting base. This patent is the same as prior art 1. An external ventilation duct is arranged on the rear side of the equipment mounting frame. The length of the duct is large, which wastes space on the aircraft.

[0005] Prior art three: In the patent with the invention name "A kind of airborne structural heat dissipation device based on forced air cooling" and application number CN202210860432.4, the chassis 1 is arranged on the rack 2, the upper structure of the chassis 1 is the installation area 13, and the lower structure is used as the forced air cooling heat dissipation area 14. The air inlet 8 of the chassis is located at the bottom of the chassis, and forced air cooling is achieved by a fan, but the wind source on the airborne equipment cannot be fully utilized, wasting energy.

[0006] When installing airborne equipment, saving and rationally utilizing the onboard space must be considered. Airborne equipment is generally pushed in horizontally from the front of the equipment mounting frame and on the mounting plane, with the rear of the loading equipment resting against the locating pins on the mounting frame. In order to save onboard space, the space between the rear side of the equipment mounting frame and the inner wall of the cabin is relatively small. For equipment that is cooled by air intake through rear openings, the design of the air duct must fully utilize the space in the rest of the aircraft. In the prior art, the ventilation duct on the rear side of the equipment mounting frame is relatively long and occupies a certain space, requiring a relatively large space to be reserved between the inner wall of the cabin and the equipment mounting frame, wasting onboard space. Summary of the invention

[0007] In order to solve the technical problem that the equipment with rear openings for air intake and cooling occupies a large space on the aircraft, the present invention provides an airborne air supply steering adapter and a chassis assembly.

[0008] The purpose of the present invention is to be achieved by adopting the following technical solutions. According to an airborne air supply steering adapter proposed by the present invention, it includes an equipment mounting frame, an air outlet located at the rear end of the equipment mounting frame and used to dock with the air inlet of the airborne equipment, the rear end of the equipment mounting frame is provided with an equipment mounting frame air cavity connected with the air outlet, the side of the equipment mounting frame in the direction of disassembly and assembly of the airborne equipment is provided with a docking pipe connecting air cavity connected with the equipment mounting frame air cavity, the side of the docking pipe connecting air cavity away from the equipment mounting frame is connected with one end of the ventilation pipe, and the other end of the ventilation pipe is the air inlet.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] For airborne equipment that requires forced air cooling, when designing the ventilation duct, the air duct is split and diverted to shorten the length of the air duct and improve the space utilization rate on the aircraft; the air inlet direction of the airborne equipment is diverted to the side of the equipment mounting frame to avoid affecting the ventilation duct design of the airborne equipment that requires forced air cooling by making the rear space of the equipment mounting frame too small in order to save space on the aircraft, and fully utilize the side space of the equipment mounting frame.

[0011] Furthermore, an equipment mounting frame is provided with an equipment mounting frame air cavity structure at the rear end portion of the equipment mounting frame, the equipment mounting frame air cavity structure has an equipment mounting frame air cavity inside, one end of the equipment mounting frame air cavity structure is an air outlet, and the other end is an air inlet of the equipment mounting frame air cavity located on the side of the rear end portion of the equipment mounting frame; the butt-joint pipe connecting air cavity comprises a butt-joint pipe air cavity and a connecting device air cavity, the equipment mounting frame air cavity structure is detachably connected to a butt-joint pipe connecting device located on the side portion of the equipment mounting frame, the butt-joint pipe connecting device has a connecting device air cavity inside, one end of the connecting device air cavity is a connecting device air outlet, and the other end is a connecting device air inlet, and the air inlet of the equipment mounting frame air cavity is connected with the connecting device air outlet; the other side of the butt-joint pipe connecting device is detachably connected with the butt-joint pipe, the butt-joint pipe has a butt-joint pipe air cavity inside, one end of the butt-joint pipe air cavity is a butt-joint pipe air outlet, and the other end is a butt-joint pipe air inlet, and the connecting device air inlet is connected with the butt-joint pipe air outlet; the other end of the butt-joint pipe is detachably connected to the ventilation pipe, and the butt-joint pipe air inlet is connected with the ventilation pipe outlet of the ventilation pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Improve the maintainability of the device, facilitate disassembly and replacement, and avoid the situation where the device cannot be maintained or has poor maintainability.

[0014] Furthermore, the end face of the wall body where one of the butt-joint pipe air inlet and the ventilation pipe air outlet is located has a plurality of arc-shaped protrusions distributed circumferentially at intervals, and the end face of the wall body where the other is located has a plurality of arc-shaped grooves matching the arc-shaped protrusions distributed circumferentially at intervals; when the butt-joint pipe air inlet is docked with the ventilation pipe air outlet, the arc-shaped protrusion can be nested in any arc-shaped groove to achieve angle adjustment between the butt-joint pipe and the ventilation pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a connection method capable of switching to wind sources in different directions. By adjusting the direction of the ventilation pipe, wind sources in different positions and at different angles can be fully utilized for air supply.

[0017] Furthermore, a sealing ring is embedded in the end surface of the wall where the air outlet is located.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] After the air inlet and outlet of the airborne equipment are connected, sealing is achieved to reduce the risk of flow leakage of the airborne environmental control equipment.

[0020] Furthermore, the butt-joint pipe connection device is obliquely arranged on the side of the equipment mounting frame, and the inclination direction of the butt-joint pipe connection device is to extend obliquely forward from the air inlet of the air cavity of the equipment mounting frame to the side of the bottom plate of the equipment mounting frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] By tilting the butt-joint pipe connection device forward, the air cavity is moved forward, leaving enough space for the design of the ventilation duct.

[0023] Furthermore, a fixing frame is provided at the bottom of the butt-joint pipe connection device, and the fixing frame is detachably arranged on the side of the bottom plate.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The fixing frame is used to realize the fixed connection between the butt-joint pipe connecting device and the bottom plate and the rear side plate. Meanwhile, the butt-joint pipe connecting device as a whole can also serve as a reinforcing rib to enhance the strength of the equipment mounting frame.

[0026] Furthermore, a baffle for closing the air inlet of the connecting device is provided on one side of the butt-joint tube connected to the butt-joint tube connecting device, and the butt-joint tube air outlet of the butt-joint tube is located on the baffle and communicated with the front end of the air cavity of the connecting device.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The butt-joint pipe is moved forward, and thus the ventilation pipe connected with the butt-joint pipe can be moved forward, so that the space on the aircraft is fully utilized.

[0029] Furthermore, a first annular groove is provided on the outer circumferential surface of the butt joint tube near the air inlet, and a second annular groove is provided on the outer circumferential surface of the ventilation pipe near the air outlet, and sealing rings are nested in the first groove and the second groove; a flexible clamp is provided at the docking position between the butt joint tube and the ventilation pipe.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The sealing effect at the butt joint between the butt joint and the ventilation pipe is ensured by means of the grooves provided in the butt joint and the sealing rings nested in the grooves and cooperating with the sealing rings in the flexible clamps.

[0032] Furthermore, integral oil tank sealant is applied to the butt joint end surfaces between the air cavity structure of the equipment mounting frame and the butt joint connecting device, between the butt joint connecting device and the butt joint, and between the butt joint and the ventilation pipe.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] Further improve the sealing of the entire air duct to ensure good air supply.

[0035] A chassis assembly comprises a chassis, an airborne air supply steering adapter, a chassis mounting frame on an equipment mounting frame, and an air inlet connected to an air outlet at the rear end of the chassis.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] After the airborne equipment is plugged in and installed, the air outlet of the adapter is connected to the air inlet of the airborne equipment, and cold air is transported to the air inlet of the airborne equipment through the air outlet to cool and dissipate heat of the airborne equipment.

[0038] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1-1 It is a schematic diagram of prior art one;

[0040] Figure 1-2 It is a schematic diagram of the prior art 2;

[0041] Figure 1-3 It is a schematic diagram of prior art three;

[0042] Figure 2 It is a schematic diagram of an embodiment of an airborne air supply steering adapter device of the present invention;

[0043] Figure 3 for Figure 2 A schematic cross-sectional view of the device shown after cutting along the air duct;

[0044] Figure 4 for Figure 2 A schematic diagram of the air inlet of the air duct of the device shown;

[0045] Figure 5 for Figure 2 Schematic diagram of the air cavity structure of the equipment installation frame;

[0046] Figure 6-1 for Figure 2 A three-dimensional schematic diagram of the middle butt-joint pipe connection device;

[0047] Figure 6-2 for Figure 6-1 Front view along the wind direction;

[0048] Figure 7-1 for Figure 2 Front view of the middle butt joint observed along the wind direction;

[0049] Figure 7-2 for Figure 7-1 Side view of

[0050] Figure 8-1 for Figure 2Front view of the central ventilation duct observed along the wind direction;

[0051] Figure 8-2 for Figure 8-1 Side view of

[0052] Figure 9-1 for Figure 2 Installation diagram of the butt joint pipe and ventilation pipe;

[0053] Figure 9-2 for Figure 9-1 Schematic diagram from another perspective.

[0054] [Reference Signs]

[0055] 1-equipment mounting frame, 101-bottom plate, 102-rear side plate, 103-positioning pin,

[0056] 2-air cavity structure of equipment installation frame, 201-air outlet, 202-sealing rubber ring, 203-air cavity of equipment installation frame, 204-first connecting flange, 205-air inlet of air cavity of equipment installation frame,

[0057] 3-butt-joint connection device, 301-connection device air cavity, 302-connection device air outlet, 303-connection device air inlet, 304-second connection flange, 305-fixing frame,

[0058] 4-butt joint pipe, 401-butt joint pipe air cavity, 402-arc-shaped protrusion, 403-first groove, 404-baffle, 405-butt joint pipe air outlet, 406-butt joint pipe air inlet, 407-first annular boss,

[0059] 5-ventilation pipe, 501-air inlet, 502-arc groove, 503-second groove, 504-ventilation pipe air outlet, 505-second annular boss, 506-ventilation pipe air cavity,

[0060] 6-Flexible clamp,

[0061] 7-0 type sealing ring. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] Embodiment 1 of an airborne air supply steering adapter device of the present invention is as follows: Figure 2 to Figure 9-2As shown, the adapter includes an equipment mounting frame 1, an equipment mounting frame air cavity structure 2, a butt-joint pipe connection device 3, a butt-joint pipe 4, a ventilation pipe 5, and a flexible clamp 6. Figure 2-Figure 3 shown.

[0064] The equipment mounting frame 1 comprises a bottom plate 101 and a rear side plate 102 at the rear end of the bottom plate 101 . The airborne equipment is placed on the bottom plate 101 and pushed backwards. The airborne equipment is plugged into the positioning pins 103 on the rear side plate 102 to realize the installation of the loading equipment.

[0065] The rear side of the rear side plate 102 is provided with an equipment mounting frame air chamber structure 2, such as Figure 5 As shown, one end of the air cavity structure 2 of the equipment mounting frame is an air outlet 201 penetrating the rear side plate 102, and the other end is an air inlet 205 of the air cavity of the equipment mounting frame. The air outlet 201 is the air outlet of the entire adapter, and the air inlet 205 of the air cavity of the equipment mounting frame is located on the side of the rear end of the equipment mounting frame 1. The wall of the air cavity structure 2 of the equipment mounting frame is integrally provided with the rear side plate 102 or is detachably provided. The air cavity 203 of the equipment mounting frame inside the air cavity structure 2 of the equipment mounting frame is connected to the air outlet 201 and the air inlet 205 of the equipment mounting frame. In this embodiment, the air cavity 203 of the equipment mounting frame is L-shaped as a whole, and the outer wall of the air cavity 203 of the equipment mounting frame is the wall of the air cavity structure 2 of the equipment mounting frame.

[0066] The wall of the air outlet 201 protrudes from the front side of the rear side plate 102, and the shape of the air outlet 201 matches the air inlet of the airborne equipment, both of which are circular. After the airborne equipment is plugged in and installed, the air outlet 201 of the adapter device is connected to the air inlet of the airborne equipment, and cold air is transported to the air inlet of the airborne equipment through the air outlet 201 to cool and dissipate the heat of the airborne equipment. The end face of the annular wall of the air outlet 201 is embedded with a sealing rubber ring 202 or a sealing ring of other materials to achieve the sealing of the air inlet of the airborne equipment and the plug-in interface of the air outlet 201.

[0067] The wall end face of the air inlet 205 of the equipment mounting frame is provided with a first connecting flange 204. To facilitate processing and realize the rapid positioning and installation of the butt-tube connection device 3 on the first connecting flange 204, the shape of the air inlet 205 of the equipment mounting frame is rectangular, and correspondingly, the first connecting flange 204 is rectangular. The wall end face where the air inlet 205 of the equipment mounting frame is located and the first connecting flange 204 are perpendicular to the rear side plate 102 and are located on one side of the rear side plate 102. The air outlet 201 and the air inlet 205 of the equipment mounting frame are connected through the air cavity 203 of the equipment mounting frame, and the air outlet 201 is connected with the air inlet of the airborne equipment, so as to realize the redirection of the air inlet direction of the airborne equipment to the side of the equipment mounting frame 1, avoid the influence of the ventilation duct design of the airborne equipment that needs forced air cooling by making the rear side space of the equipment mounting frame 1 too small in order to save the space on the aircraft, make full use of the side space of the equipment mounting frame 1, and improve the space utilization rate on the aircraft.

[0068] In order to reduce the length of the air cavity 203 of the equipment mounting frame and thus shorten the length of the air duct, the air outlet 201 is close to one side edge of the rear side plate 102 .

[0069] The butt-joint pipe connection device 3 is obliquely arranged on the side of the equipment mounting frame 1 in the direction of inserting the airborne equipment, and the butt-joint pipe connection device 3 is used to connect the air cavity structure 2 of the equipment mounting frame with the butt-joint pipe 4, such as Figure 6-1 to Figure 6-2 As shown, the butt-joint pipe connection device 3 extends forwardly and obliquely from the air inlet 205 of the equipment mounting frame air cavity to the side of the bottom plate 101 of the equipment mounting frame 1. The inside of the butt-joint pipe connection device 3 is a connection device air cavity 301, and the side of the butt-joint pipe connection device 3 facing the air inlet 205 of the equipment mounting frame air cavity is provided with a connection device air outlet 302 matching the air inlet 205 of the equipment mounting frame air cavity, and the side wall of the butt-joint pipe connection device 3 around the connection device air outlet 302 is distributed with through holes corresponding to the positions of the through holes on the first connection flange 204, and the butt-joint pipe connection device 3 is fixed to the side of the equipment mounting frame 1 by passing bolts and nuts through the through holes.

[0070] A connecting device air inlet 303 is provided on the side of the butt-joint pipe connecting device 3 away from the equipment mounting frame 1 , and a second connecting flange 304 is provided on the end face where the connecting device air inlet 303 is located, for connecting with the butt-joint pipe 4 .

[0071] A fixing frame 305 is provided at the bottom of the butt-joint pipe connection device 3, and the fixing frame 305 is fixed to the side of the bottom plate 101 by bolts or screws, so as to realize the fixed connection between the butt-joint pipe connection device 3 and the bottom plate 101 and the rear side plate 102, and the butt-joint pipe connection device 3 as a whole serves as a reinforcing rib, and can also strengthen the strength of the equipment mounting frame 1. The bottom surface of the fixing frame 305 is flush with the bottom surface of the bottom plate 101.

[0072] The butt joint 4 is a round tube, such as Figure 7-1 to Figure 7-2As shown, a baffle 404 is provided at one end of the butt joint pipe 4 that cooperates with the butt joint pipe connection device 3, a butt joint pipe air cavity 401 in the butt joint pipe 4 runs through the entire butt joint pipe 4 and the baffle 404, and a butt joint pipe air outlet 405 is provided on the baffle 404. The baffle 404 matches the outer contour of the second connection flange 304 and is fixed by bolts and nuts, and is used to close the air inlet 303 of the connection device, and at the same time, the butt joint pipe air outlet 405 is connected with the air inlet 303 of the connection device. After the butt joint pipe 4 is fixed to the butt joint pipe connection device 3, the butt joint pipe air outlet 405 is connected with the part of the front bottom of the connection device air inlet 303, and the butt joint pipe air outlet 405 is moved forward to further increase the space between the butt joint pipe and the inner wall of the cabin, leaving enough space for the design of the ventilation duct.

[0073] A plurality of arc-shaped protrusions 402 are evenly distributed at intervals in the annular end surface of the wall body where the air inlet 406 of the butt-joint pipe is located. In this embodiment, four arc-shaped protrusions 402 are arranged on the annular end surface, and the center of the circle corresponding to the arc-shaped protrusions 402 coincides with the center of the circle of the air inlet 406 of the butt-joint pipe (i.e., the center of the annular distribution of the plurality of arc-shaped protrusions 402). A first groove 403 extending in the annular direction is arranged on the circumferential outer wall of the butt-joint pipe 4 near the air inlet 406 of the butt-joint pipe, and the first groove 403 is used to nest an O-shaped sealing ring 7 or a sealing ring of other shapes. In order to facilitate the processing of the arc-shaped protrusions 402 and the first groove 403, and to improve the strength of the butt-joint pipe 4, the wall body of the butt-joint pipe 4 near the air inlet 406 of the butt-joint pipe is thickened outward to form a first annular boss 407, and the first groove 403 is arranged on the outer circumferential surface of the first annular boss 407.

[0074] The ventilation pipe 5 is an L-shaped circular pipe as a whole. Figure 8-1 to Figure 8-2 As shown, the interior of the ventilation duct 5 is a ventilation duct air cavity 506 that runs through the entire ventilation duct 5. One end of the ventilation duct 5 is an air inlet 501 for connecting to a wind source. The air inlet 501 serves as the air inlet of the entire adapter device and can be used to receive air from wind sources at different locations and angles.

[0075] The other end of the ventilation pipe 5 is a ventilation pipe outlet 504 for docking with the docking pipe 4. A plurality of arc grooves 502 are evenly distributed in an annular direction on the annular end surface of the wall body where the ventilation pipe outlet 504 is located. In this embodiment, four arc grooves 502 are arranged on the annular end surface. The center of the circle corresponding to the arc groove 402 coincides with the center of the circle of the ventilation pipe outlet 504 (i.e., the center of the annular distribution of the plurality of arc grooves 502). The shape and size of the arc groove 502 match the arc protrusion 402. A second groove 503 extending in an annular direction is arranged on the circumferential outer wall of the ventilation pipe 5 near the ventilation pipe outlet 504. The second groove 503 is used to nest the O-shaped sealing ring 7 or other shaped sealing rings. In order to facilitate the processing of the arc groove 502 and the second groove 503 and to improve the strength of the ventilation pipe 5, the wall body of the ventilation pipe 5 near the ventilation pipe outlet 504 is thickened outward to form a second annular boss 505. The second groove 503 is arranged on the outer circumferential surface of the second annular boss 505.

[0076] The arc-shaped protrusion 402 can be nested in any arc-shaped groove 502. After the arc-shaped protrusion 402 is inserted into the corresponding arc-shaped groove 502, the air outlet 504 of the ventilation pipe and the air inlet 406 of the docking pipe are docked, and the ventilation pipe 5 and the docking pipe 4 are stopped from rotating. Figures 9-1 to 9-2 As shown, the angle and orientation of the ventilation pipe 5 are fixed, and the ventilation pipe 5 is rotated 90°, 180° or 270° around the axis of the ventilation pipe air outlet 504, and the arc-shaped protrusion 402 can still be inserted into the corresponding arc-shaped groove 502 to adjust the orientation and angle of the air inlet 501, so as to facilitate communication with air sources at different positions and angles on the aircraft. If there are a large number of air sources on the aircraft, the number of arc-shaped grooves 502 and arc-shaped protrusions 402 can be increased to further increase the number of angles for rotation and positioning. Correspondingly, if there are a small number of air sources on the aircraft, the number of arc-shaped grooves 502 and arc-shaped protrusions 402 can be reduced.

[0077] In this embodiment, in order to facilitate the insertion of the arc-shaped protrusion 402 into the arc-shaped groove 502, the inner wall of the arc-shaped protrusion 402 is flush with the inner wall of the corresponding duct air cavity 401, the arc-shaped groove 502 is connected to the ventilation duct air cavity 506, and chamfers are provided at the top of the arc-shaped protrusion 402 and the arc-shaped groove 502.

[0078] After the ventilation pipe 5 and the butt joint pipe 4 are butt jointed at the selected angle, a flexible clamp 6 is sleeved at the butt joint position, and the two ends of the flexible clamp 6 are respectively clamped on the first annular boss 407 and the second annular boss 505 to achieve a firm connection between the ventilation pipe 5 and the butt joint pipe 4, and the O-ring 7 in the first groove 403 and the second groove 503 cooperates with the sealing ring in the flexible clamp 6 to achieve sealing at the butt joint position.

[0079] The air duct of the air supply and diversion device is divided into three parts, which are: ventilation pipe air cavity 506, butt-joint pipe connecting air cavity (including butt-joint pipe air cavity 401 and connecting device air cavity 301), and equipment mounting frame air cavity 203. The air inlet end surface of the equipment mounting frame air cavity 203 (such as Figure 5 The first connecting flange 204 shown in FIG. 1 is connected to the air outlet end surface of the butt-joint connecting device 3 (as shown in FIG. Figure 6-1 , Figure 6-2 As shown) are fastened by bolts and nuts, and the air inlet end face of the butt-joint connecting device 3 (as shown Figure 6-1 , Figure 6-2 The second connecting flange 304 shown in FIG. Figure 7-1 , Figure 7-2 The baffle shown in the figure is fastened by bolts and nuts, and the two form a butt-joint pipe connecting air cavity, and the butt-joint pipe 4 is connected to the ventilation pipe 5 by a flexible clamp 6, and the air outlet end face of the butt-joint pipe connecting air cavity is connected to the air inlet end face of the equipment mounting frame air cavity 203, and the air inlet end face is connected to the air outlet end face of the ventilation pipe 5. Figure 4 As shown, after the wind from the wind source enters the air inlet 501, it passes through the ventilation duct air cavity 506, the butt-joint pipe connecting air cavity (in the butt-joint pipe connecting air cavity, it passes through the butt-joint pipe air cavity 401 and the connecting device air cavity 301 in sequence), and the equipment mounting frame air cavity 203, and is output from the air outlet 201 to the airborne equipment, so that the space on the side of the equipment mounting frame 1 is fully utilized to realize air supply and forced air cooling and heat dissipation, and at the same time, the air inlet direction of the airborne equipment is turned to the side of the equipment mounting frame 1. In order to save space on the aircraft, the space on the rear side of the equipment mounting frame 1 is too small. After the air inlet direction is turned to the side of the equipment mounting frame 1, it avoids affecting the ventilation duct design of the airborne equipment that needs forced air cooling, and fully utilizes the side space of the equipment mounting frame 1 to improve the space utilization rate on the aircraft.

[0080] By respectively setting an arc-shaped protrusion 402 and an arc-shaped groove 502 on the mating surfaces of the butt joint pipe 4 and the ventilation pipe 5, the angle and direction of the air inlet of the ventilation pipe 5 can be adjusted, which can adapt to different models. The direction of the air inlet of the ventilation pipe 5 can be adjusted according to the position of the wind source of the corresponding model, so as to expand the scope of use of the adapter; or, in the same model, the ventilation pipe 5 can be rotated and inserted as needed to connect with wind sources in different directions. The wind speed and temperature of different wind sources are different. When the airborne equipment requires different heat dissipation, for example, when the aircraft is flying or hovering in the air or moving or stopping on the ground, the required heat dissipation is different, and the ventilation pipe 5 can be adjusted as needed to connect with different wind sources. The grooves provided in the butt joint pipe 4 and the ventilation pipe 5 and the sealing rings embedded in the grooves are matched with the sealing rings in the flexible clamp 6 to ensure the sealing effect at the butt joint position between the butt joint pipe 4 and the ventilation pipe 5.

[0081] If any parts in the adapter have leakage or other faults, the faulty parts can be replaced individually, which increases the maintainability of the ventilation pipeline.

[0082] In order to further improve the sealing of the entire air duct and ensure good air supply, a low-density, high-performance integral oil tank sealant with a material grade of CMS-SL-104 is applied on the butt end faces of each air cavity (each component) of the air duct to ensure the sealing of the air duct.

[0083] The ventilation duct 5 is milled, which ensures the accuracy of the position of the air inlet 501 on the one hand, and reduces the risk of flow leakage on the other hand, effectively transmitting the aircraft environmental control air volume to the inside of the chassis of the airborne equipment, meeting the equipment's heat dissipation and ventilation requirements.

[0084] The beneficial effects of this embodiment are summarized as follows:

[0085] ① The entire ventilation duct can be divided into three parts and designed to be diverted, and the length of the duct can be reduced. The duct can be diverted from the rear of the equipment mounting frame to the side of the equipment mounting frame, which effectively reduces the space for duct layout and saves space on the machine;

[0086] ② The connection between the ventilation pipe 5 and the butt-joint pipe 4 adopts a connection structure with grooves and protrusions evenly distributed in the circumferential direction that are inserted into each other, so as to ensure the accurate docking of the ventilation pipe and prevent the ventilation pipe 5 from rotating after installation; at the same time, the insertion angle can be adjusted as needed to adapt to air intake from different directions; the ventilation pipe 5 and the butt-joint pipe 4 can be quickly disassembled by using flexible clamps, and they can be quickly installed after adjusting the angle.

[0087] ③ The use of flexible clamps and sealants can ensure the sealing of the air duct connection. The various parts of the adapter can be disassembled to facilitate the loading and unloading and maintenance of the pipeline.

[0088] In a second embodiment of an airborne air supply steering adapter device of the present invention, the equipment mounting frame air cavity structure 2, the docking tube connection device 3, the docking tube 4, and the ventilation duct 5 can be integrally arranged to form a complete curved air cavity from the air inlet 501 to the air outlet 201. When designing the adapter device in this embodiment, the position and orientation of the air inlet 501 are adjusted according to the orientation of the wind source, or the ventilation duct 5 and the docking tube 4 are still detachably connected through the structure of the first embodiment, and the angle between the ventilation duct 5 and the docking tube 4 can be adjusted.

[0089] Embodiment 3 of an airborne air supply steering adapter device of the present invention differs from embodiment 1 in that an arc-shaped groove is provided on the end face of the wall where the air inlet 406 of the connecting pipe is located, and correspondingly, an arc-shaped protrusion is provided on the end face of the wall where the air outlet 504 of the ventilation pipe is located to be plugged into the arc-shaped groove.

[0090] In the fourth embodiment of an airborne air supply steering adapter device of the present invention, the bending angle of the ventilation pipe 5 can be other angles besides 90° (L-shape), which can be greater than 90° or less than 90°.

[0091] An embodiment of a chassis assembly of the present invention comprises the above-mentioned airborne air supply steering adapter and a chassis. The chassis is mounted on an equipment mounting frame 1 of the adapter. An air inlet connected to the air outlet 201 is disposed at the rear end of the chassis.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An airborne air supply diversion switching device, comprising an equipment mounting frame (1), an air outlet (201) located at the rear end of the equipment mounting frame (1) and used to dock with the air inlet of the airborne equipment, characterized in that: The rear end of the equipment mounting frame (1) is provided with an equipment mounting frame air cavity (203) connected to the air outlet (201); the side of the equipment mounting frame (1) in the direction of disassembly and assembly of the airborne equipment is provided with a butt-joint pipe connecting air cavity connected to the equipment mounting frame air cavity (203); the side of the butt-joint pipe connecting air cavity away from the equipment mounting frame (1) is connected to one end of the ventilation pipe (5); and the other end of the ventilation pipe (5) is an air inlet (501).

2. The airborne air supply steering adapter according to claim 1, characterized in that: The rear end of the equipment mounting frame (1) is provided with an equipment mounting frame air cavity structure (2), the interior of the equipment mounting frame air cavity structure (2) is an equipment mounting frame air cavity (203), one end of the equipment mounting frame air cavity structure (2) is an air outlet (201), and the other end is an equipment mounting frame air cavity air inlet (205) located on the side of the rear end of the equipment mounting frame (1); the butt-joint pipe connecting air cavity comprises a butt-joint pipe air cavity (401) and a connecting device air cavity (301), the equipment mounting frame air cavity structure (2) is detachably connected to a butt-joint pipe connecting device (3) located on the side of the equipment mounting frame (1), the interior of the butt-joint pipe connecting device (3) is a connecting device air cavity (301), one end of the connecting device air cavity (301) is The connecting device has an air outlet (302) and the other end is an air inlet (303) of the connecting device, and the air inlet (205) of the air cavity of the equipment mounting frame is connected to the air outlet (302) of the connecting device; the other side of the butt-joint pipe connecting device (3) is detachably connected to the butt-joint pipe (4), the interior of the butt-joint pipe (4) is a butt-joint pipe air cavity (401), one end of the butt-joint pipe air cavity (401) is a butt-joint pipe air outlet (405), and the other end is a butt-joint pipe air inlet (406), and the air inlet (303) of the connecting device is connected to the butt-joint pipe air outlet (405); the other end of the butt-joint pipe (4) is detachably connected to the ventilation pipe (5), and the butt-joint pipe air inlet (406) is connected to the ventilation pipe outlet (504) of the ventilation pipe (5).

3. The airborne air supply diversion adapter according to claim 2, characterized in that: The end surface of the wall where one of the butt-joint pipe air inlet (406) and the ventilation pipe air outlet (504) is located has a plurality of arc-shaped protrusions (402) distributed circumferentially at intervals, and the end surface of the wall where the other is located has a plurality of arc-shaped grooves (502) matching the arc-shaped protrusions (402) distributed circumferentially at intervals. When the butt-joint pipe air inlet (406) and the ventilation pipe air outlet (504) are butt-joined, the arc-shaped protrusion (402) can be nested in any arc-shaped groove (502) to achieve angle adjustment of the butt-joint pipe (4) and the ventilation pipe (5).

4. An airborne air supply diversion adapter according to claim 1 or 2, characterized in that: A sealing ring is embedded in the end surface of the wall where the air outlet (201) is located.

5. The airborne air supply diversion adapter according to claim 2, characterized in that: The butt-joint pipe connection device (3) is obliquely arranged on the side of the equipment mounting frame (1), and the oblique direction of the butt-joint pipe connection device (3) is to extend obliquely forward from the air inlet (205) of the air cavity of the equipment mounting frame to the side of the bottom plate (101) of the equipment mounting frame (1).

6. The airborne air supply diversion adapter according to claim 5, characterized in that: A fixing frame (305) is provided at the bottom of the butt-joint pipe connection device (3), and the fixing frame (305) is detachably arranged on the side of the bottom plate (101).

7. The airborne air supply diversion adapter according to claim 2, characterized in that: A baffle (404) for closing the air inlet (303) of the connecting device is provided on one side of the butt-joint pipe (4) connected to the butt-joint pipe connecting device (3); a butt-joint pipe air outlet (405) of the butt-joint pipe (4) is located on the baffle (404) and is in communication with the front end of the air cavity (301) of the connecting device.

8. The airborne air supply diversion adapter according to claim 3, characterized in that: The butt-joint pipe (4) is provided with a first annular groove (403) on its outer circumferential surface close to the butt-joint pipe air inlet (406), and the ventilation pipe (5) is provided with a second annular groove (503) on its outer circumferential surface close to the ventilation pipe air outlet (504), and sealing rings are nested in both the first groove (403) and the second groove (503); a flexible clamp (6) is sleeved at the butt joint position between the butt-joint pipe (4) and the ventilation pipe.

9. The airborne air supply diversion adapter according to claim 2, characterized in that: The butt end surfaces between the air cavity structure (2) of the equipment mounting frame and the butt pipe connecting device (3), between the butt pipe connecting device (3) and the butt pipe (4), and between the butt pipe (4) and the ventilation pipe (5) are coated with an integral oil tank sealant.

10. A chassis assembly, characterized in that: It comprises a chassis and an airborne air supply diversion adapter as described in any one of claims 1 to 9, the chassis is installed on an equipment mounting frame (1), and an air inlet is provided at the rear end of the chassis and is connected to the air outlet (201).

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