Modularized aviation transfer system

Abstract

The invention discloses a modularized aviation transfer system which comprises a base, a main body frame, a first-aid equipment placing module and a stretcher, the main body frame is placed on the base, the main body frame and the base are detachably positioned and connected together, and a stretcher placing platform used for placing the stretcher is arranged at the top of the main body frame. The stretcher is placed on a stretcher placing platform of the main body frame, the stretcher placed on the stretcher placing platform is detachably positioned and connected to the main body frame through a locking mechanism, and the first-aid equipment placing module is detachably connected to the main body frame. The emergency stretcher has the advantages that the stretcher can be independently taken down from the main body frame, wounded persons on an emergency site can be transferred, and use is more convenient; the main body frame, the base, the first-aid equipment placement module and the stretcher can be moved into the small aircraft from an entrance of the small aircraft to be quickly assembled, and installation and use are extremely convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of air transportation, and particularly relates to a modular air transportation system. Background Art

[0002] At present, the air transportation systems equipped in large aircraft and small aircraft for transporting the wounded or patients generally consist of a base, a main frame, and a stretcher that are fixedly welded together as a whole. The disadvantages of such a welded air transportation system are: 1) It is impossible to quickly disassemble, assemble, and overhaul the transportation system; 2) The stretcher is fixed to the main frame, and the stretcher cannot be separately removed from the main frame to transport the wounded at the first aid scene.

[0003] For small aircraft such as civil airliners and private aircraft (such as Cessna Citation, Gulfstream G650, Bombardier Global 7500, etc.), the dimensions (height, width, depth) of the cabin door entrance are small. Since the overall length of the main frame in the integrated air transportation system is greater than the depth of the cabin door entrance of the small aircraft, the main frame cannot be directly carried into the civil airliner and private aircraft through the entrance. Therefore, when configuring an air transportation system in a small aircraft, only each component such as the cross beam, column, and longitudinal beam that make up the main frame can be carried into the small aircraft one by one, and then the main frame is assembled and welded inside the small aircraft, and the main frame is welded and fixed to the base and the stretcher. The assembly process of the entire air transportation system is time-consuming and laborious. Summary of the Invention

[0004] The purpose of the present invention is to provide a modular air transportation system that can be quickly assembled or disassembled.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: A modular air transportation system includes a base, a main frame, a first aid equipment placement module, and a stretcher. The main frame is placed on the base, and the main frame and the base are detachably positioned and connected together. A stretcher placement platform for placing the stretcher is provided at the top of the main frame. The stretcher is placed on the stretcher placement platform of the main frame, and the stretcher placed on the stretcher placement platform is detachably positioned and connected to the main frame through a locking mechanism. The first aid equipment placement module is detachably connected to the main frame.

[0006] Further, for a modular air transportation system described above, wherein: The structure of the locking mechanism includes: A number of fixing pins protruding from the corresponding stretcher ends are respectively provided at the front and rear ends of the stretcher; Two flap plates distributed on the front and rear sides of the stretcher placement platform are provided on the main body frame. Each flap plate is hinged to the corresponding main body frame end through a left-right running rotating shaft. Guide outer tubes running left and right are respectively provided on the main body frame inside each flap plate. A number of avoidance long holes are spaced along the length direction on the tube wall of each guide outer tube facing the corresponding flap plate. A push block is slidably arranged in each guide outer tube. A number of hook body connecting parts corresponding to the respective avoidance long holes of the corresponding guide outer tube are fixed on each push block. Each hook body connecting part extends out of the corresponding guide outer tube through the corresponding avoidance long hole and is connected with a hook body; A push rod is also fixedly connected to each push block. Each push rod extends out of the corresponding guide outer tube along the axial direction of the corresponding guide outer tube, then extends out from the longitudinal beam of the main body frame and is fixed with an unlocking button. A first elastic member is arranged between each unlocking button and the corresponding longitudinal beam. One end of each first elastic member abuts against the corresponding longitudinal beam, and the other end abuts against the corresponding unlocking button. Each push rod always has a tendency to drive the push block and each hook body to translate outward along the corresponding guide outer tube under the action of the corresponding first elastic member; A number of flap positioning holes corresponding to the hooks on the corresponding side and a number of stretcher positioning holes corresponding to the stretcher fixing pins on the corresponding side are provided on each flap plate; When the stretcher is placed on the stretcher placement platform and the two side flap plates are turned upward and erected, each flap positioning hole of each flap plate just sleeves the corresponding hook body so that each hook body is located outside the corresponding flap plate. At the same time, each stretcher positioning hole of the flap plate also just sleeves the corresponding fixing pin at the corresponding stretcher end. And at this time, each hook body will translate along the corresponding guide outer tube to be misaligned with the corresponding flap positioning hole under the elastic force of the corresponding first elastic member to limit and fix the corresponding side flap plate, thereby positioning and fixing the stretcher on the stretcher placement platform through the two side flap plates.

[0007] Further, for a modular air transportation system described above, wherein: A first inclined surface for contact and cooperation with the edge of the corresponding flap positioning hole during the upward flipping process of the flap is provided at the outer end of each hook body.

[0008] Further, the aforementioned modular aviation transfer system, wherein: the specific connection structure between the main frame and the base includes: a plurality of rear positioning beams are installed in sequence from front to back along the length direction of the base at intervals on the top of the base, each rear positioning beam is arranged in a left-right direction, and a plurality of positioning pins protruding from the front side wall of the rear positioning beam are installed in sequence along the length direction on each rear positioning beam; a plurality of front positioning beams corresponding to the rear positioning beams are installed in sequence from front to back on the bottom of the bottom plate of the main frame, and a plurality of positioning holes corresponding to the positioning pins are arranged in sequence along the length direction on the rear side wall of each front positioning beam; each front positioning beam in the main frame placed on the base respectively leans backward against the corresponding rear positioning beam of the base, and the positioning pins of each rear positioning beam are correspondingly inserted into the corresponding positioning holes of the corresponding front positioning beam; a locking assembly is provided on the rear side of at least one front positioning beam in the main frame, and the locking assembly can clamp the corresponding rear positioning beam of the base in a front-to-back relative state with the corresponding front positioning beam, thereby positioning and fixing the main frame to the base.

[0009] Furthermore, the aforementioned modular aviation transfer system, wherein: the structure of the locking assembly includes: a lock head entrance and exit hole is arranged on the bottom plate of the main frame, a pin seat is fixed on the top of the bottom plate at the lock head entrance and exit hole, a horizontal plate extending to the top of the lock head entrance and exit hole is arranged on the pin seat, a through hole corresponding to the lock head entrance and exit hole is arranged on the horizontal plate, a flip block is arranged on the pin seat, the middle part of the flip block is hinged to the pin seat through a pin shaft, a pressure rod is connected to the end of the flip block away from the horizontal plate, and a waist hole is arranged at the end of the flip block close to the horizontal plate, which passes through the flip block up and down and corresponds to the through hole of the horizontal plate downward. A screw rod is passed through the waist hole, and the upper end of the screw rod extends upward from the waist hole to the flip block and is fixed with a positioning nut with a diameter larger than the width of the waist hole. The lower end of the screw rod passes downward through the waist hole and the through hole of the horizontal plate in turn, and is fixed with a lock aligned with the lock entry and exit hole. A second elastic member is arranged between the horizontal plate and the lock head, and the upper end of the second elastic member presses upward against the horizontal plate, and the lower end presses downward against the lock head. Under the elastic force of the second elastic member, the lock head extends downward from the lock entry and exit hole to the bottom plate, so that the lock head and the corresponding front positioning beam are in a front-to-back relative state to clamp the corresponding rear positioning beam of the base, thereby positioning and fixing the main frame to the base.

[0010] Furthermore, in the aforementioned modular aviation transport system, the front end of the lock is provided with a second inclined surface which gradually slopes downward from the back to the front.

[0011] Furthermore, for the aforementioned modular air transportation system, it is characterized in that: the main body frame is formed by sequentially splicing at least two independent split frames front to back. Each adjacent pair of split frames is connected and fixed through a connecting mechanism. The structure of the connecting mechanism includes: vertically arranged T-shaped chutes and vertically arranged T-shaped sliders are respectively provided at the docking ends of adjacent split frames. The adjacent split frames are connected together by sliding and fitting the T-shaped chutes with the T-shaped sliders; positioning cross beams are also respectively provided at the docking ends of adjacent split frames. A positioning jack is provided on the positioning cross beam of one of the split frames. A pull rod running front to back is inserted through another split frame. A handle is fixed at one end of the pull rod, and the other end of the pull rod extends out from the positioning cross beam of the split frame where it is located and is fixed with a plug that aligns with the positioning jack. A third elastic member is provided between the plug and the positioning cross beam of the split frame where the plug is located. The plug always has a tendency to insert into the positioning jack of another split frame under the elastic force of the third elastic member to connect and fix the adjacent two split frames.

[0012] Furthermore, for the aforementioned modular air transportation system, it is characterized in that: the first aid equipment placement module includes: an upright frame, and / or a shelf, and / or an infusion rack installed on the main body frame. The upright frame is detachably connected to the main body frame through a plurality of locking bolts. The shelf is detachably installed on the main body frame through a shelf connecting mechanism; the infusion rack is detachably installed on the main body frame through an infusion rack connecting mechanism.

[0013] Furthermore, for the aforementioned modular air transportation system, it is characterized in that: the structure of the shelf connecting mechanism includes: a plurality of sleeves are fixed on the side wall of the main body frame. The inside of the sleeve has a stepped diameter change. A plurality of support rods corresponding to the sleeves are provided at the bottom of the shelf. The shelf is detachably installed on the main body frame by inserting each support rod into the corresponding sleeve and resting on the step of the corresponding sleeve; the structure of the infusion rack connecting mechanism includes: a sleeve is fixed on the side wall of the main body frame. The inside of the sleeve has a stepped diameter change. A support rod corresponding to the sleeve is provided at the bottom of the infusion rack. The infusion rack is detachably installed on the main body frame by inserting the support rod into the sleeve and resting on the step of the corresponding sleeve.

[0014] Furthermore, for the aforementioned modular air transportation system, it is characterized in that: two left-right parallel support longitudinal beams are provided in the main body frame. The two support longitudinal beams form an oxygen cylinder placement platform for placing oxygen cylinders. An oxygen cylinder is placed on the oxygen cylinder placement platform. Front baffles and rear stoppers for limiting the front and rear positions of the oxygen cylinder are respectively provided on the front and rear sides of the oxygen cylinder placement platform. The oxygen cylinder is fixed to the oxygen cylinder placement platform through a plurality of hoop fasteners.

[0015] By implementing the above technical solutions, the beneficial effects of the present invention are as follows: (1) The air transportation system is assembled from a modular base, a main frame, a first aid equipment placement module, and a stretcher, enabling rapid assembly, disassembly, and maintenance of the air transportation system, which is convenient to use; (2) The stretcher can be removed separately from the main frame, facilitating the transfer of the wounded at the first aid scene, making it even more convenient to use; (3) The air transportation system is assembled from a modular base, a main frame, a first aid equipment placement module, and a stretcher, and the main frame adopts a segmented structure that can be quickly disassembled and assembled, allowing the main frame, base, first aid equipment placement module, and stretcher to all enter the interior of a small aircraft smoothly through its entrance for rapid assembly. The installation and disassembly are very convenient, enabling small aircraft to be quickly equipped with an air transportation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic structural diagram of a modular air transportation system according to the present invention.

[0017] Figure 2 is Figure 1 the left view of.

[0018] Figure 3 is Figure 2 the A-A cross-sectional view in.

[0019] Figure 4 is Figure 3 the enlarged schematic view of part C shown in.

[0020] Figure 5 FIG. is a schematic structural diagram of the locking assembly.

[0021] Figure 6 is the exploded view of the locking assembly.

[0022] Figure 7 is Figure 2 the B-B cross-sectional view in.

[0023] Figure 8 is Figure 7 the enlarged schematic view of part D shown in.

[0024] Figure 9 is Figure 7 the enlarged schematic view of part E shown in.

[0025] Figure 10 is Figure 1 the perspective view of.

[0026] Figure 11 is the perspective view of the stretcher.

[0027] Figure 12 is the perspective view of the base.

[0028] Figure 13 A perspective view of the main frame when an oxygen cylinder is assembled.

[0029] Figure 14 Another perspective view of the main frame when an oxygen cylinder is assembled.

[0030] Figure 15 A perspective view of the front split frame in the main frame after the stretcher placement platform is hidden.

[0031] Figure 16 A perspective view of the rear split frame in the main frame after the stretcher placement platform is hidden.

[0032] Figure 17 A perspective view of the flap.

[0033] Figure 18 A schematic structural view of the push block, the hook body connecting part and the hook body. Specific implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] As Figure 1 , Figure 2 , Figure 10 shown, a modular air transportation system includes a base 1, a main frame 2, an emergency equipment placement module, and a stretcher 4. The main frame 2 is placed on the base 1, and the main frame 2 and the base 1 are detachably positioned and connected together. A stretcher placement platform 5 for placing the stretcher 4 is provided at the top of the main frame 2. The stretcher 4 is placed on the stretcher placement platform 5 of the main frame 2. The stretcher 4 placed on the stretcher placement platform 5 is detachably positioned and connected to the main frame 2 through a locking mechanism. The emergency equipment placement module is detachably connected to the main frame 2; In this embodiment, the main frame 2 adopts a split structure. The main frame 2 is formed by sequentially splicing at least two independent split frames front and back. In actual application, the number of split frames constituting the main frame 2 can be arbitrarily configured according to the actual installation conditions; the connection mechanism is used to connect and fix between every two adjacent split frames, and the structures of the connection mechanisms between every two adjacent split frames are the same; In this embodiment, as Figure 7 , Figure 9 , Figure 13 , Figure 14 , Figure 15 , Figure 16As shown, the main frame 2 is composed of two independent split frames that are spliced ​​together front and back in sequence. In order to explain the present invention more clearly, the split frame located on the front side is defined as the front split frame 8, and the split frame located on the rear side is defined as the rear split frame 9. The structure of the connecting mechanism for connecting and fixing the front split frame 8 and the rear split frame 9 is specifically as follows: T-shaped slide grooves 6 are vertically arranged on the left and right sides of the rear end of the front split frame 8, and T-shaped sliders 7 corresponding to the T-shaped slide grooves 6 are vertically arranged on the left and right sides of the front end of the rear split frame 9, respectively. The T-shaped slide grooves 6 of the front split frame 8 are slidably engaged with the T-shaped sliders 7 of the rear split frame 9, and the front split frame 8 and the rear split frame 9 are connected by the T-shaped slide grooves 6 and the T-shaped sliders 7. Together, the front split frame 8 and the rear split frame 9 are limited in the front and rear directions and the left and right directions through the cooperation of the T-shaped slide groove 6 and the T-shaped slider 7. A positioning beam is respectively provided at the rear end of the front split frame 8 and the front end of the rear split frame 9. In order to explain the present invention more clearly, the positioning beam at the rear end of the front split frame 8 is defined as the rear positioning beam 10, and the positioning beam at the front end of the rear split frame 9 is defined as the front positioning beam 11. A positioning socket 12 is provided on the front positioning beam 11 at the front end of the rear split frame 9. A pull rod 13 running forward and backward is passed through the front split frame 8. The front end of the pull rod 13 extends forward from the front split frame 8 and is fixed with a handle 14. The rear end of the pull rod 13 is connected to the rear end of the front split frame 8 through the rear positioning The positioning crossbeam 10 extends out and is fixed with a plug 15 aligned with the positioning socket 12. A third elastic member is arranged between the plug 15 and the rear positioning crossbeam 10 of the front split frame 8. In this embodiment, the third elastic member is a third spring 16. Under the elastic force of the third spring 16, the plug 15 always has a tendency to move backward and insert into the positioning socket 12 to connect and fix the front split frame 8 with the rear split frame 9; when the pull rod 13 is not subjected to external force, the plug 15 will move backward and insert into the positioning socket 12 under the elastic force of the third spring 16. After the plug 15 is inserted into the positioning socket 12, the cooperation between the plug 15 and the positioning socket 12 can limit the front split frame 8 and the rear split frame 9 in the upper and lower directions. The cooperation of block 7 limits the front split frame 8 and the rear split frame 9 in the front-to-back direction and the left-to-right direction. At the same time, the cooperation of the plug 15 and the positioning socket 12 limits the front split frame 8 and the rear split frame 9 in the up-down direction, thereby connecting and fixing the front split frame 8 and the rear split frame 9 together; when it is necessary to separate the front split frame 8 from the rear split frame 9, first hold the handle 14 and pull the pull rod 13 outward to disengage the plug 15 from the positioning socket 12 of the front positioning beam 11 of the rear split frame 9, and then pull the front split frame 8 or the rear split frame 9 upward to disengage the T-shaped slide groove 6 of the front split frame 8 from the T-shaped slide block of the rear split frame 9, thereby completing the separation operation of the front split frame 8 and the rear split frame 9.

[0036] likeFigure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 12 As shown in Figure 12 , the specific connection structure between the base 1 and the main frame 2 composed of the front sub-frame 8 and the rear sub-frame 9 includes: a number of rear positioning beams 17 are sequentially and spacedly installed on the top of the base 1 along its length direction from front to back. Each rear positioning beam 17 is arranged in a left-right direction. A number of positioning pins 18 protruding from the front side wall of the rear positioning beam are sequentially and spacedly installed on each rear positioning beam 17 along its length direction; a number of front positioning beams 19 corresponding to the rear positioning beams 17 of the base are sequentially and spacedly installed on the bottom of the bottom plate 33 of the front sub-frame 8 and the bottom of the bottom plate 33 of the rear sub-frame 9 of the main frame 2 from front to back respectively. A number of positioning holes 20 for corresponding to the corresponding positioning pins 18 are sequentially and spacedly arranged on the rear side wall of each front positioning beam 19 along its length direction; each front positioning beam 19 at the bottom of the rear sub-frame 9 and each front positioning beam 19 at the bottom of the front sub-frame 8 in the main frame 2 respectively abut against the corresponding rear positioning beams 17 at the corresponding positions of the base 1, and at the same time, each positioning pin 18 on each rear positioning beam 17 is correspondingly inserted into the corresponding positioning hole of the corresponding front positioning beam. Through the position matching between each front positioning beam 19 in the main frame and the rear positioning beams 17 of the base, and the plugging and matching between each positioning hole 20 of each front positioning beam 19 and each positioning pin 18 on the rear positioning beams 17 of the base 1, the up-down direction and left-right direction of the main frame 2 on the base 1 are effectively limited; a locking component 21 is arranged on the rear side of at least one front positioning beam in the main frame. The locking component 21 can clamp the corresponding rear positioning beam 17 of the base in a front-rear opposite state with the corresponding front positioning beam 19. The cooperation between the locking component 21 and the front positioning beam 19 can limit the front-rear position of the main frame 2 on the base. Since the up-down direction and left-right direction of the main frame 2 on the base 1 are effectively limited through the position matching between each front positioning beam 19 in the main frame and the rear positioning beams 17 of the base, and the plugging and matching between each positioning hole 20 of each front positioning beam 19 and each positioning pin 18 on the rear positioning beams 17 of the base 1, and at the same time, the front-rear position of the main frame 2 on the base can be effectively limited through the cooperation between the locking component 21 and the front positioning beam 19, the main frame 1 is positioned and fixedly installed on the base.

[0037] In this embodiment, the locking assembly 21 is arranged at the rear side of the front positioning beam 19 which is the foremost one among the front split frames 8 of the main body frame 2; the structure of the locking assembly includes: a lock head access hole is provided on the bottom plate of the front split frame 8 of the main body frame 2, a pin seat 22 is fixed at the top of the bottom plate at the lock head access hole, a horizontal plate 23 extending directly above the lock head access hole is arranged on the pin seat 22, a through hole corresponding to the lock head access hole is arranged on the horizontal plate 23, a turning block 24 is arranged on the pin seat 22, the middle part of the turning block 24 is hinged to the pin seat 22 through a pin shaft 25, a pressure rod 26 is connected to the end of the turning block away from the horizontal plate 23, a waist-shaped hole 27 which penetrates through the turning block 24 up and down and corresponds to the through hole of the horizontal plate downward is arranged at the end of the turning block close to the horizontal plate 23, a screw rod 28 is arranged in the waist-shaped hole 27, the upper end of the screw rod 28 extends upward from the waist-shaped hole 27 out of the turning block 24 and is fixed with a positioning nut 29 with a diameter larger than the width of the waist-shaped hole, the lower end of the screw rod 28 sequentially passes through the waist-shaped hole 27 and the through hole of the horizontal plate downward and is fixed with a lock head 30 aligned with the lock head access hole, a second elastic member is arranged between the horizontal plate 23 and the lock head 30, the second elastic member is a second spring 31, the upper end of the second spring 31 abuts against the horizontal plate 23 upward and the lower end abuts against the lock head 30 downward, and the lock head 30 extends downward from the lock head access hole out of the bottom plate 33 under the elastic force of the second spring 31, so that the lock head 30 and the corresponding front positioning beam 19 clamp the corresponding base rear positioning beam 17 in a front-back opposite state, thereby positioning and fixing the main body frame 2 on the base 1.

[0038] In this embodiment, a limit baffle 60 is fixed on the screw rod 28 above the lock head 30, the limit baffle 60 is located between the horizontal plate 23 and the base bottom plate 33, and the diameter of the limit baffle 60 is larger than the diameter of the lock head access hole of the base bottom plate 33. In this way, when the lock head 30 extends completely downward from the lock head access hole out of the bottom plate 33 under the elastic force of the second spring 31 to cooperate with the corresponding front positioning beam 19 to clamp the corresponding base rear positioning beam 17, the limit baffle 60 just presses downward on the bottom plate 33; in the case without the limit baffle 60, the downward limit of the lock head 30 only depends on the positioning nut 29, and the positioning nut 29 is liable to loosen and fall off due to continuous collision with the turning block 24. If the positioning nut 29 falls off, the lock head 30 will fall from the lock head access hole of the base bottom plate 33. By adding the limit of the limit baffle 60 in this embodiment, the situation that the lock head 30 falls from the lock head access hole of the base bottom plate 33 can be avoided, and the use stability and safety are improved; In this embodiment, a second inclined surface 32 that gradually slopes downward from the rear to the front is provided at the front end of the lock head 30. During the process of the main body frame 2 moving backward on the base 1 until each front positioning beam 17 abuts and positions against each rear positioning beam 17, the lock head 30 of the locking assembly 21 will first contact the rear positioning beam 17 of the corresponding base 1. At this time, the lock head 30 gradually overcomes the elastic force of the second spring 31 and automatically moves upward by contacting the corresponding rear positioning beam 17 through its second inclined surface 32. Until when the lock head 30 moves backward with the main body frame 2 to a position completely behind the corresponding rear positioning beam 17, at this time, the lock head 30 will extend downward from the lock head access hole through the bottom plate 33 under the elastic force of the second spring 31, so that the lock head 30 and the corresponding front positioning beam 19 clamp the corresponding rear positioning beam 17 of the base in a front-rear opposite state, thereby positioning and fixing the main body frame 2 on the base 1; through the design of the second inclined surface 32 of the lock head 30, when the staff moves the main body frame 2 backward along the base 1 and locks it on the base 1, the staff does not need to perform a manual unlocking operation to move the lock head 30 upward. The lock head 30 will automatically move upward to smoothly lock the main body frame 2 on the base, making the operation more convenient.

[0039] In this embodiment, as Figure 8 , Figure 11 , Figure 17 , Figure 18As shown in the figure, the structure of the locking mechanism for detachably positioning and connecting the stretcher 4 to the main body frame 1 includes: a number of fixing pins 34 protruding from the corresponding stretcher ends are respectively provided at the front and rear ends of the stretcher 4; two flap plates 35 distributed on the front and rear sides of the stretcher placement platform are provided on the main body frame 2, and each flap plate 35 is respectively hinged to the corresponding main body frame end through a left-right running rotating shaft 36, that is: one flap plate 35 is hinged to the front end of the front split frame 8 through the rotating shaft 36, and the other flap plate 35 is hinged to the rear end of the rear split frame 9 through the rotating shaft 36; guiding outer tubes 37 running left and right are respectively provided on the main body frame on the inner side of each flap plate 35, and a number of avoiding long holes 38 are arranged at intervals along the length direction on the tube wall of each guiding outer tube 37 facing the corresponding flap plate 35. A push block 39 is slidably arranged in each guiding outer tube 37, and a number of hook body connecting parts 40 corresponding to the respective avoiding long holes 38 of the corresponding guiding outer tube 37 are fixed on each push block 39. Each hook body connecting part 40 extends out of the corresponding guiding outer tube 37 through the corresponding avoiding long hole 38 and is connected with a hook body 41; a push rod 42 is also fixedly connected to each push block 39. After each push rod 42 extends out of the corresponding guiding outer tube 37 along the axis of the corresponding guiding outer tube 37 and then extends out of the longitudinal beam 43 of the main body frame and is fixed with an unlocking button 44, a first elastic member is arranged between each unlocking button 44 and the corresponding longitudinal beam 43. The first elastic member is a first spring 45. One end of each first spring 45 abuts against the corresponding longitudinal beam 43, and the other end abuts against the corresponding unlocking button 44. Each push rod 42 always has a tendency to drive the push block 39 and each hook body 41 to translate outward along the corresponding guiding outer tube 37 under the action of the corresponding first spring 45; a number of flap positioning holes 46 corresponding to the hook bodies 41 on the corresponding side and a number of stretcher positioning holes 47 corresponding to the corresponding stretcher fixing pins 34 on the corresponding side are arranged on each flap plate 35; when the stretcher 4 is placed on the stretcher placement platform 5 and the two side flap plates 35 are turned upward and erected, the respective flap positioning holes 46 of each flap plate 35 just fit over the corresponding hook bodies 41 so that the hook bodies are located outside the corresponding flap plates, and at the same time, the respective stretcher positioning holes 47 of the flap plate 35 also just fit over the corresponding fixing pins 34 at the corresponding stretcher ends. And at this time, each hook body 41 will translate along the corresponding guiding outer tube 37 to be misaligned with the corresponding flap positioning hole 46 under the elastic force of the corresponding first spring 45 to limit and fix the corresponding side flap plate 35, so as to position and fix the stretcher 4 on the stretcher placement platform 5 through the two side flap plates 35; In this embodiment, a first inclined surface 48 for contacting and cooperating with the edge of the corresponding flap positioning hole 46 during the upward flipping of the flap 35 is provided at the outer end of each hook body 41. During the upward flipping of the flap 35, the edge of the flap positioning hole 46 of the flap 35 will contact the first inclined surface 48 at the outer end of the hook body 41 and push the hook body 41 to automatically translate against the elastic force of the first spring 45 until the hook body 41 completely extends out of the corresponding flap positioning hole 46 of the flap 35 to the outside of the corresponding flap 35. At this time, each hook body 41 will translate and reset along the corresponding guiding outer tube under the elastic force of the corresponding first spring 45 to be misaligned with the corresponding flap positioning hole, thereby limiting and fixing the corresponding flap. Through the design of the inclined surface at the end of the hook body 41, when the staff flips the flap 35 upward to lock the stretcher 4, the staff does not need to manually press the unlocking member 44 to translate the hook body 41 to a position where the flap can be smoothly flipped upward. The hook body 41 will automatically translate to a position where the flap can be smoothly flipped upward through the cooperation of its first inclined surface 48 and the edge of the flap positioning hole 46 of the flap 35, making the operation more convenient.

[0040] In practical applications, the first-aid equipment placement module may include an upright frame 49 installed on the main body frame 2, and / or a shelf 50, and / or an infusion rack. The upright frame 49 is detachably connected to the main body frame 2 through a plurality of locking bolts 51. The shelf 50 is detachably installed on the main body frame 2 through a shelf connection mechanism. The structure of the infusion rack connection mechanism includes: a sleeve is fixed on the side wall of the main body frame, the inside of the sleeve has a stepped diameter change, and a support rod corresponding to the sleeve is provided at the bottom of the infusion rack. The shelf is detachably installed on the main body frame 2 by inserting the support rod into the sleeve and placing it on the step of the corresponding sleeve.

[0041] In this embodiment, the first-aid equipment placement module includes an upright frame 49 on one side of the left and right sides of the stretcher placement platform 5, and shelves 50 located on the front and rear sides of the stretcher placement platform 5 and above the stretcher placement platform 5. The upright frame 49 and each shelf 50 are used to place accompanying first-aid equipment, such as defibrillators, ventilators, oxygen cylinders, suction devices, monitors, sphygmomanometers, pulse oximeters, first-aid kits, infusion pumps, temperature-changing water tanks, ECMO hosts, etc. The upright frame 49 is detachably connected to the main body frame 2 through a plurality of locking bolts 51. The shelf 50 is detachably installed on the main body frame 2 through a shelf connection mechanism. The structure of the shelf connection mechanism includes: a plurality of sleeves 52 are fixed on the side wall of the main body frame 2, the inside of the sleeves 52 has a stepped diameter change, and a plurality of support rods 54 corresponding to the sleeves 52 are provided at the bottom of the shelf 50. The shelf 50 is detachably installed on the main body frame 2 by inserting each support rod 54 into the corresponding sleeve 52 and placing it on the step of the corresponding sleeve 52.

[0042] In this embodiment, two parallel support longitudinal beams 55 are arranged in the main body frame 2. The two support longitudinal beams 55 form an oxygen cylinder placement platform for placing the oxygen cylinder 56. The oxygen cylinder 56 is placed on the oxygen cylinder placement platform. Front baffle 57 and rear stop block 58 for limiting the front and rear positions of the oxygen cylinder 56 are respectively arranged on the front and rear sides of the oxygen cylinder placement platform. The oxygen cylinder 56 is fixed to the oxygen cylinder placement platform through a plurality of hoop 59. The above structure can quickly assemble the oxygen cylinder to the main body frame 2, with higher assembly efficiency; When assembling the air transportation system in a large aircraft or a small aircraft, first separately move the base 1, the front split frame 8 and the rear split frame 9 of the main body frame 2, the stretcher 4, the vertical frame 49 and the shelf 50 from the aircraft entrance to the interior of the aircraft; Then assemble the front split frame 8 and the rear split frame 9 into the main body frame. The specific operation process is as follows: First, hold the handle 14 of the front split frame 8 and pull the pull rod 13 outwards, so that the plug 15 of the pull rod 13 retracts and positions on the cross beam 10. Then slide the T-shaped slider 7 at the front end of the rear split frame 9 into the corresponding T-shaped chute 6 at the rear end of the front split frame 8. When the rear split frame 9 moves up and down relative to the front split frame 8 until the positioning hole 12 on its front positioning cross beam 11 aligns with the plug 15, remove the external force applied to the handle 14. At this time, the plug 15 will move backward under the elastic force of the third spring 16 and insert into the positioning hole 12, thus completing the assembly of the front split frame 8 and the rear split frame 9; Then assemble the main body frame 2 on the base 1. The specific operation process is as follows: stagger the front positioning beams 19 at the bottom of the main body frame 2 and the rear positioning beams 17 at the top of the base 1 front and back and place them on the base 1. Then move the main body frame 2 backward, and make each front positioning beam 19 at the bottom of the main body frame 2 respectively abut against the corresponding rear positioning beam 17 at the corresponding position of the base 1 backward, and make each positioning pin 18 on each rear positioning beam 17 respectively insert into the corresponding positioning hole of the corresponding front positioning beam. During the process that the main body frame 2 moves backward on the base 1 until the front positioning beams 17 and the rear positioning beams 17 abut and are positioned, the lock head 30 of the locking assembly 21 will first contact the rear positioning beam 17 of the corresponding base 1. At this time, the lock head 30 contacts the corresponding rear positioning beam 17 through its second inclined surface 32 and gradually moves upward automatically against the elastic force of the second spring 31 until when the lock head 30 moves backward with the main body frame 2 to be completely behind the corresponding rear positioning beam 17, at this time the lock head 30 will extend downward from the lock head access hole to the bottom plate 33 under the elastic force of the second spring 31, so that the lock head 30 and the corresponding front positioning beam 19 clamp the corresponding rear positioning beam 17 of the base in a front-back relative state, thereby positioning and fixing the main body frame 2 on the base 1; then the installation of the oxygen cylinder 56 in the main body frame 2 can be carried out. Place the oxygen cylinder 56 on the two support longitudinal beams 55 in the main body frame 2, and limit the front and rear positions of the oxygen cylinder 56 through the front baffle 57 and the rear stop 58. Then use a number of hoop 59 to fasten the oxygen cylinder 55 on the two support longitudinal beams 55 of the main body frame 2; Then install the stretcher 4 on the main body frame 2. The specific operation process is as follows: place the stretcher 4 on the stretcher placement platform 5 of the main body frame 2, and then turn up the flap plates 35 on both sides of the main body frame 2 upright. During the process that each flap plate 35 turns up, each stretcher positioning hole 47 of each flap plate 35 will gradually fit over the corresponding fixing pin 34 at the end of the corresponding stretcher, and at the same time each flap plate positioning hole 46 will also gradually fit over the corresponding hook body 41 at the end of the corresponding main body frame. During the process that the flap plate positioning hole 46 of each flap plate 35 contacts the corresponding hook body 41, the edge of the flap plate positioning hole 46 of each flap plate 35 will contact the first inclined surface 48 at the outer end of the hook body 41 at the end of the corresponding main body frame and push the hook body 41 to translate automatically against the elastic force of the first spring 45 until the hook body 41 completely extends out of the corresponding flap plate positioning hole 46 of the flap plate 35 to the outside of the corresponding flap plate 35. At this time, each stretcher positioning hole 47 of each flap plate 35 completely fits over the corresponding fixing pin 34 at the end of the corresponding stretcher, and at this time each hook body 41 will translate and reset along the corresponding guiding outer tube 37 under the elastic force of the corresponding first spring 45 to be misaligned with the corresponding flap plate positioning hole 46 to limit and fix the corresponding side flap plate 35, thereby positioning and fixing the stretcher 4 on the stretcher placement platform 5 of the main body frame 2 through the two side flap plates 35; Next, the upright frame 49 is detachably connected to the main frame 2 through a plurality of locking bolts 51, and the shelf 50 is detachably mounted on the main frame 2 by inserting the support rods 54 into the corresponding sleeves 52 and placing them on the steps of the corresponding sleeves 52.

[0043] When disassembling the air transportation system, first remove the upright frame 49 and each shelf 50 from the main frame 2, and then remove the stretcher 4 from the stretcher placement platform 5 of the main frame 2. The operation process of removing the stretcher 4 from the stretcher placement platform 5 of the main frame 2 is as follows: Press the unlocking buttons 44 on both sides of the main frame 2 to translate the hook bodies 41 on both sides to align with the corresponding flap positioning holes 46 of the corresponding flaps 35 to unlock the flaps 35, and then turn the two flaps 35 downward so that the stretcher positioning holes 47 of the two flaps 35 are disengaged from the corresponding fixing pins 34 at both ends of the stretcher 4 to unlock the stretcher. At this time, the stretcher 4 can be removed from the stretcher placement platform 5 of the main frame 2. Then separate the main frame 2 from the base 1. The specific operation is as follows: Press down the lever 26 of the locking assembly 21 at the front end of the main frame 2, drive the flipping block to flip by pressing down the lever 26, and synchronously drive the screw 28 and the lock head 30 to move upward against the elastic force of the second spring 31 and retract into the lock head access hole. When the lock head 30 moves upward and retracts into the lock head access hole, the locking assembly 21 releases the restriction on the front and rear positions of the main frame 2. At this time, the main frame 2 can move forward relative to the base 1. Then move the main frame 2 forward so that the positioning holes 20 of the front positioning beams 19 in the main frame 2 are disengaged from the positioning pins 18 on the rear positioning beams 17 in the base 1, thereby separating the main frame 2 from the base 1.

[0044] The advantages of the invention are: (1) The air transportation system is assembled from a modular base, a main frame, an emergency equipment placement module, and a stretcher, and can be quickly assembled, disassembled, and repaired, which is convenient to use; (2) The stretcher can be removed from the main frame separately, and the wounded at the emergency scene can be transferred, which is more convenient to use; (3) The air transportation system is assembled from a modular base, a main frame, an emergency equipment placement module, and a stretcher, and the main frame adopts a segmented structure that can be quickly disassembled and assembled, so that the main frame, the base, the emergency equipment placement module, and the stretcher can all smoothly enter the interior of the small aircraft through its entrance for quick assembly. The installation and disassembly are very convenient, enabling the small aircraft to be quickly equipped with the air transportation system.

[0045] The above description is only a preferred embodiment of the present invention, and does not impose any other form of limitation on the present invention. Any modification or equivalent change made according to the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A modular aviation transport system, characterized in that: The invention comprises a base, a main frame, a first aid equipment placement module, and a stretcher. The main frame is placed on the base, and the main frame and the base are detachably positioned and connected together. A stretcher placement platform for placing the stretcher is arranged on the top of the main frame, and the stretcher is placed on the stretcher placement platform of the main frame. The stretcher placed on the stretcher placement platform is detachably positioned and connected to the main frame through a locking mechanism, and the first aid equipment placement module is detachably connected to the main frame.

2. A modular aviation transport system according to claim 1, characterized in that: The structure of the locking mechanism includes: a plurality of fixing pins protruding from the corresponding ends of the stretcher are respectively arranged at the front and rear ends of the stretcher; two flaps are arranged on the main frame and are distributed on the front and rear sides of the stretcher placement platform, each flap is hinged to the corresponding end of the main frame through a left-right rotating shaft, and a left-right guiding outer tube is respectively arranged on the main frame on the inner side of each flap, and a plurality of avoidance long holes are arranged at intervals along the length direction of each guiding outer tube on the tube wall facing the corresponding flap, and a push block is slidably arranged in each guiding outer tube, and a plurality of hook body connecting parts corresponding to the avoidance long holes of the corresponding guiding outer tube are fixed on each push block, and each hook body connecting part extends outward from the corresponding guiding outer tube through the corresponding avoidance long hole and is connected to a hook body; a push rod is also fixedly connected to each push block, and each push rod extends outward from the corresponding guiding outer tube along the axial direction of the corresponding guiding outer tube, and then extends from the longitudinal beam of the main frame and is fixed with an unlocking button, and at each A first elastic member is arranged between each unlocking button and the corresponding longitudinal beam, one end of each first elastic member abuts against the corresponding longitudinal beam, and the other end abuts against the corresponding unlocking button, and each push rod always has the tendency to drive the push block and each hook body to translate outward along the corresponding guide outer tube under the action of the corresponding first elastic member; a plurality of flap positioning holes corresponding to the corresponding side hook bodies, and a plurality of stretcher positioning holes corresponding to the corresponding side stretcher fixing pins are arranged on each flap; when the stretcher is placed on the stretcher placement platform and the flaps on both sides are flipped upward and upright, each flap positioning hole of each flap is just inserted into the corresponding hook body so that each hook body is located on the outer side of the corresponding flap, and at the same time, each stretcher positioning hole of the flap is also just inserted into the corresponding fixing pin at the end of the corresponding stretcher, and at this time, each hook body will translate along the corresponding guide outer tube under the elastic force of the corresponding first elastic member to be misaligned with the corresponding flap positioning hole to limit and fix the corresponding side flap, thereby positioning and fixing the stretcher on the stretcher placement platform through the flaps on both sides.

3. A modular aviation transport system according to claim 2, characterized in that: The outer end of each hook body is provided with a first inclined surface for contacting and cooperating with the edge of the corresponding flap positioning hole during the process of the flap turning upward.

4. A modular aviation transport system according to claim 1, characterized in that: The specific connection structure between the main frame and the base includes: a plurality of rear positioning beams are installed in sequence from front to back along the length direction of the base at intervals on the top of the base, each rear positioning beam is arranged in a left-right direction, and a plurality of positioning pins protruding from the front side wall of the rear positioning beam are installed in sequence along the length direction on each rear positioning beam; a plurality of front positioning beams corresponding to the rear positioning beams are installed in sequence from front to back on the bottom of the bottom plate of the main frame, and a plurality of positioning holes corresponding to the positioning pins are arranged in sequence along the length direction on the rear side wall of each front positioning beam; each front positioning beam in the main frame placed on the base respectively leans backward against the corresponding rear positioning beam of the base, and the positioning pins of each rear positioning beam are correspondingly inserted into the corresponding positioning holes of the corresponding front positioning beam; a locking assembly is provided on the rear side of at least one front positioning beam in the main frame, and the locking assembly can clamp the corresponding rear positioning beam of the base in a front-to-back relative state with the corresponding front positioning beam, thereby positioning and fixing the main frame to the base.

5. A modular aviation transport system according to claim 4, characterized in that: The structure of the locking assembly includes: a lock head entrance and exit hole is arranged on the bottom plate of the main frame, a pin seat is fixed on the top of the bottom plate at the lock head entrance and exit hole, a horizontal plate extending to the top of the lock head entrance and exit hole is arranged on the pin seat, a through hole corresponding to the lock head entrance and exit hole is arranged on the horizontal plate, a flip block is arranged on the pin seat, the middle part of the flip block is hinged to the pin seat through a pin shaft, a pressure rod is connected to the end of the flip block away from the horizontal plate, and a waist hole is arranged at the end of the flip block close to the horizontal plate, which passes through the flip block up and down and corresponds to the through hole of the horizontal plate downward, and a screw rod is passed through the waist hole, and the screw rod is inserted into the waist hole. The upper end of the flip block extends upward from the waist hole and is fixed with a positioning nut with a diameter larger than the width of the waist hole. The lower end of the screw rod passes through the waist hole and the through hole of the horizontal plate in sequence and is fixed with a lock aligned with the lock entry and exit hole. A second elastic member is arranged between the horizontal plate and the lock. The upper end of the second elastic member presses upward against the horizontal plate and the lower end presses downward against the lock. Under the elastic force of the second elastic member, the lock extends downward from the lock entry and exit hole of the bottom plate so that the lock and the corresponding front positioning beam are in a front-to-back relative state to clamp the corresponding rear positioning beam of the base, thereby positioning and fixing the main frame to the base.

6. A modular aviation transport system according to claim 5, characterized in that: The front end of the lock head is provided with a second inclined surface which gradually slopes downward from the back to the front.

7. A modular aviation transport system according to any one of claims 1 to 6, characterized in that: The main frame is composed of at least two independent split frames which are spliced ​​together front to back in sequence, and each two adjacent split frames are connected and fixed by a connecting mechanism, and the structure of the connecting mechanism includes: vertical T-shaped slots and vertical T-shaped sliders are respectively arranged at the butt ends of the two adjacent split frames, and the two adjacent split frames are connected together by sliding and fitting the T-shaped slots and the T-shaped sliders; positioning beams are also respectively arranged at the butt ends of the two adjacent split frames, and a positioning socket is arranged on the positioning beam of one of the split frames, and a pull rod running forward and backward is passed through the other split frame, a handle is fixed to one end of the pull rod, and the other end of the pull rod extends from the positioning beam of the split frame and is fixed with a plug aligned with the positioning socket, and a third elastic member is arranged between the plug and the positioning beam of the split frame, and under the elastic force of the third elastic member, the plug always has a tendency to be inserted into the positioning socket of the other split frame to connect and fix the two adjacent split frames.

8. A modular aviation transport system according to claim 1, characterized in that: The first aid equipment placement module includes: a stand, and / or a shelf, and / or an infusion stand installed on the main frame, the stand is detachably connected to the main frame by a plurality of locking bolts, the shelf is detachably installed on the main frame by a shelf connecting mechanism; the infusion stand is detachably installed on the main frame by an infusion stand connecting mechanism.

9. A modular aviation transport system according to claim 8, characterized in that: The structure of the shelf connection mechanism includes: a plurality of sleeves are fixed on the side wall of the main frame, the inner diameter of the sleeves is reduced to form a step, and a plurality of support rods corresponding to the sleeves are arranged at the bottom of the shelf. The shelf is detachably mounted on the main frame by inserting each support rod into the corresponding sleeve and placing it on the step of the corresponding sleeve; the structure of the infusion stand connection mechanism includes: a sleeve is fixed on the side wall of the main frame, the inner diameter of the sleeve is reduced to form a step, and a support rod corresponding to the sleeve is arranged at the bottom of the infusion stand. The shelf is detachably mounted on the main frame by inserting the support rod into the sleeve and placing it on the step of the corresponding sleeve.

10. A modular aviation transport system according to claim 1, characterized in that: Two left and right parallel supporting longitudinal beams are arranged in the main frame, and the two supporting longitudinal beams form an oxygen cylinder placement platform for placing oxygen cylinders. Oxygen cylinders are placed on the oxygen cylinder placement platform. Front baffles and rear baffles for limiting the front and rear positions of the oxygen cylinders are respectively arranged on the front and rear sides of the oxygen cylinder placement platform. The oxygen cylinder is fixed to the oxygen cylinder placement platform by a plurality of clamps.

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