Cabin door assembly of airborne hanger

Abstract

A cabin door assembly of an airborne hanger effectively solves the problems that at least two power sources need to be arranged to operate the cabin door assembly, and the use space in a pod is affected to a certain degree. Comprising a shell, a cabin door is rotationally connected to the bottom of the shell, a connecting block is fixed to one side of the top of the cabin door, a middle rod is connected to the connecting block, an electric push rod is rotationally connected to one side wall of the shell, and the output end of the electric push rod is fixedly connected with the middle rod; the cabin door locking device is ingenious in structure and convenient to use, through the arrangement of the electric push rod, the transmission assembly, the locking assembly and the like, the second clamping block and the lock shaft are separated from limiting after an electric signal is sent to the electric push rod and the rocker arm rotates, and the cabin door is pushed by the electric push rod to be completely opened; only one electric push rod is adopted to realize automatic opening and closing of the cabin door, and the position of the electric push rod does not influence the actual use capacity in the pod.

Description

Technical Field

[0001] The utility model relates to the technical field of airborne pods, in particular to a hatch assembly of an airborne pylon. Background Technique

[0002] An airborne pod refers to a specially designed streamlined short pod structure installed outside an aircraft (usually under the fuselage or wing), used to carry various airborne equipment or weapon systems. These pods can be configured according to different mission requirements to expand or enhance the original functions of the aircraft.

[0003] When the existing airborne pods are used for material delivery, the hatch needs to be opened first. The current hatch opening methods still have the following problems:

[0004] 1. Using the electric control opening method, it can only control the opening, and the hatch cannot be closed, resulting in the drone or helicopter being prone to sway during transportation.

[0005] 2. Some hatches can be closed, but at least two power sources need to be set to operate them. At the same time, the power sources are generally placed on both sides of the pod, which to a certain extent affects the internal use space of the pod. Content of the Utility Model

[0006] In view of the above situation, to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a hatch assembly of an airborne pylon, which effectively solves the problems mentioned in the background technique.

[0007] The technical solution it adopts is that the utility model includes a housing, the bottom of the housing is rotatably connected with a hatch, one side of the top of the hatch is fixedly connected with a connecting block, a middle rod is connected to the connecting block, one side wall of the housing is rotatably connected with an electric push rod, the output end of the electric push rod is fixedly connected with the middle rod, a notch is opened on one side of the hatch close to the connecting block, a transmission component is arranged inside the notch, two symmetrically distributed notches are opened on the hatch, and locking components are fixedly arranged in both of the two notches;

[0008] The transmission component includes a placement box fixed inside the notch, a connecting rod is rotatably connected inside the placement box, one end of the connecting rod penetrates into the two notches, a first rotating piece is coaxially fixed at one end of the connecting rod located inside the placement box, an adapter piece is rotatably connected to the first rotating piece, a movable block is rotatably connected to one end of the adapter piece away from the connecting ear, a movable rod is fixedly connected to one end of the movable block away from the adapter piece, the movable rod is slidably connected with the placement box, a connection port is opened at the top of the placement box, the movable block is located in the connection port, and one end of the middle rod away from the electric push rod contacts the movable block;

[0009] The locking assembly includes a fixed box fixed inside the notch. A second rotating piece is coaxially fixed on the connecting rod. A connecting shaft is rotatably connected inside the fixed box. A clamping block is fixed on the connecting shaft. One end of the clamping block is rotatably connected to a connecting arm. The end of the connecting arm away from the clamping block is rotatably connected to the second rotating piece. A clamping groove is formed on the side of the clamping block away from the connecting arm. A rotating shaft is rotatably connected inside the fixed box. A rocker arm is fixed on the rotating shaft. A top block is arranged at one end of the rocker arm. One end of the top block is located inside the clamping groove. The other end of the rocker arm is respectively fixed with a first clamping block and a second clamping block. The first clamping block is located below the second clamping block. The length of the first clamping block is greater than that of the second clamping block. Two connecting seats are fixed on the side of the housing close to the rocker arm. A locking shaft is fixed on the connecting seat.

[0010] Preferably, a first kidney-shaped groove is formed on the intermediate rod. A pin shaft penetrating the first kidney-shaped groove is fixed on the connecting block. Two inclined second kidney-shaped grooves are formed on the placing box. The two second kidney-shaped grooves are symmetrically distributed. The lengths of the two second kidney-shaped grooves are the same as that of the first kidney-shaped groove. The movable rod slides inside the two second kidney-shaped grooves.

[0011] Preferably, a torsion spring is arranged on one side of the rotating shaft. A limiting block is fixed at the bottom of the rocker arm. One end of the torsion spring contacts the limiting block.

[0012] Preferably, a first connecting ear is fixed on the first rotating piece. The first connecting ear is rotatably connected to the connecting piece.

[0013] A second connecting ear is fixed on the second rotating piece. The second connecting ear is rotatably connected to the connecting arm.

[0014] Preferably, an intermediate shaft is fixed inside the fixed box. A spring rod is clamped on the intermediate shaft. One end of the spring rod away from the intermediate shaft is rotatably connected to the connecting arm.

[0015] Preferably, an opening door is arranged inside the housing. The opening door is located on the opening side of the hatch door.

[0016] Preferably, protective covers are respectively fixed at the bottoms of the placing box and the two fixed boxes.

[0017] Preferably, the hatch door is made of carbon fiber. The inside of the hatch door is a hollow structure and is filled with honeycomb-shaped support materials. A sleeve sleeved on the connecting rod is arranged between the placing box and the two fixed boxes.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. Through the settings of the electric push rod, transmission components, locking components, etc., only need to send an electrical signal to the electric push rod. Driven by the intermediate rod, movable rod, movable block and first rotating piece, the connecting rod rotates. The rotation of the connecting rod drives the second rotating piece in the locking component to rotate. The connecting arm drives the clamping block to swing to one side. After the rocker arm rotates, the second clamping block disengages from the limit of the locking shaft, and the cabin door is fully opened under the push of the electric push rod. Only one electric push rod is used to realize the automatic opening and closing of the cabin door, and the position of the electric push rod will not affect the actual usable capacity inside the pod.

[0020] 2. Through the settings of the cabin door, sleeve and honeycomb support material, etc., the weight of the cabin door is greatly reduced, and the weight of the materials that the pod can carry is maximized. Brief Description of the Drawings

[0021] Figure 1 is a three-dimensional view of the present utility model.

[0022] Figure 2 is a schematic diagram of the cooperation between the electric push rod and the housing in the present utility model.

[0023] Figure 3 is a schematic diagram of the structure of the second waist-shaped groove in the present utility model.

[0024] Figure 4 is a schematic diagram of the structure of the notch in the present utility model.

[0025] Figure 5 is a schematic diagram of the structure of the connecting piece in the present utility model.

[0026] Figure 6 is a schematic diagram of the structure of the second connecting ear in the present utility model.

[0027] Figure 7 is a schematic diagram of the structure of the locking shaft in the present utility model.

[0028] Figure 8 is a schematic diagram of the structure of the first waist-shaped groove in the present utility model.

[0029] Figure 9 is a schematic diagram of the structure of the limit block in the present utility model.

[0030] Explanation of the reference numerals in the schematic diagrams:

[0031] 1. Housing; 2. Hatch door; 3. Connecting block; 4. Intermediate rod; 5. Electric push rod; 6. Notch; 7. Slot; 8. Placing box; 9. Connecting rod; 10. First rotating piece; 11. Connecting piece; 12. Movable block; 13. Movable rod; 14. Fixed box; 15. Second rotating piece; 16. Connecting shaft; 17. Clamping block; 18. Connecting arm; 19. Card slot; 20. Rotating shaft; 21. Rocker arm; 22. Top block; 23. First clamping block; 24. Second clamping block; 25. Connecting seat; 26. Locking shaft; 27. First kidney-shaped groove; 28. Pin shaft; 29. Second kidney-shaped groove; 30. Torsion spring; 31. Limit block; 32. First connecting ear; 33. Second connecting ear; 34. Intermediate shaft; 35. Spring rod; 36. Opening door. Detailed implementation manner

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Given by Figures 1 to 7 It includes a housing 1. The housing 1 has a streamline shape and is composed of a three-section skin combination. The bottom of the housing 1 is rotatably connected to a hatch door 2. One side of the top of the hatch door 2 is fixed with a connecting block 3. The connecting block 3 has a triangular structure. A connecting rod 4 is connected to the connecting block 3. The top angle position of the connecting block 3 is connected to the connecting rod 4. A chute is provided on the connecting rod 4 so that it can slide on the connecting block 3 and rotate following the connecting block 3. One side wall of the housing 1 is rotatably connected to an electric push rod 5. The output end of the electric push rod 5 is fixedly connected to the connecting rod 4. A notch 6 is provided on one side of the hatch door 2 close to the connecting block 3. A transmission component is arranged inside the notch 6. Two symmetrically distributed slots 7 are provided on the hatch door 2. Locking components are fixed in both of the two slots 7;

[0034] The transmission assembly includes a placement box 8 fixed inside the notch 6. The placement box 8 is fixed inside the notch 6 by bolts. A connecting rod 9 is rotatably connected inside the placement box 8. One end of the connecting rod 9 penetrates into the two notches 7. One end of the connecting rod 9 located inside the placement box 8 is coaxially fixed with a first rotating piece 10. A connecting piece 11 is rotatably connected to the first rotating piece 10. One end of the connecting piece 11 away from the connecting ear is rotatably connected to a movable block 12. A movable rod 13 is fixed to the end of the movable block 12 away from the connecting piece 11. The movable rod 13 is slidably connected to the placement box 8. An activity groove consistent with the movement track of the movable rod 13 is opened on the placement box 8. A connection port is opened at the top of the placement box 8. The movable block 12 is located in the connection port. One end of the intermediate rod 4 away from the electric push rod 5 contacts the movable block 12. During use, when the electric push rod 5 is started, due to the arrangement of the chute on the intermediate rod 4, the intermediate rod 4 will first move a certain distance to one side. At this time, the movable block 12 moves obliquely downward under the push of the intermediate rod 4, and the first rotating piece 10 rotates under the conduction of the connecting piece 11, and the connecting rod 9 rotates accordingly.

[0035] The locking assembly includes a fixed box 14 fixed inside the notch 7. A second rotating piece 15 is coaxially fixed on the connecting rod 9. A connecting shaft 16 is rotatably connected inside the fixed box 14. A clamping block 17 is fixed on the connecting shaft 16. One end of the clamping block 17 is rotatably connected to a connecting arm 18. The connecting arm 18 is connected to the fixed box 14 by a spring. One end of the connecting arm 18 away from the clamping block 17 is rotatably connected to the second rotating piece 15. A clamping groove 19 is opened on one side of the clamping block 17 away from the connecting arm 18. A rotating shaft 20 is rotatably connected inside the fixed box 14. A rocker arm 21 is fixed on the rotating shaft 20. A top block 22 is arranged at one end of the rocker arm 21. The side of the clamping block 17 close to the top block 22 is arranged as an arc surface, which is convenient for the rocker arm 21 to rotate and reset later. One end of the top block 22 is located in the clamping groove 19. The other end of the rocker arm 21 is respectively fixed with a first clamping block 23 and a second clamping block 24. The first clamping block 23 is located below the second clamping block 24. The length of the first clamping block 23 is greater than the length of the second clamping block 24. Two connecting seats 25 are fixed on one side of the housing 1 close to the rocker arm 21. A locking shaft 26 is fixed on the connecting seat 25. Through the settings of the electric push rod 5, the transmission assembly and the locking assembly, only need to send an electrical signal to the electric push rod 5. After the electric push rod 5 is turned on, driven by the intermediate rod 4, the movable rod 13, the movable block 12 and the first rotating piece 10, the connecting rod 9 rotates. The rotation of the connecting rod 9 drives the second rotating piece 15 in the locking assembly to rotate. The connecting arm 18 drives the clamping block 17 to swing to one side. After the rocker arm 21 rotates, the second clamping block 24 is disengaged from the limit of the locking shaft 26, and the hatch 2 is completely opened under the push of the electric push rod 5;

[0036] When the hatch door 2 is closed, the electric push rod 5 drives the hatch door 2 to retract. After the first clamping block 23 contacts the locking shaft 26, the rocker arm 21 flips. When the top block 22 is located inside the clamping groove 19 again, the second clamping block 24 is limited by the locking shaft 26 again.

[0037] Reference Figure 3 and Figure 8 As shown in the figure, further, considering the sliding and rotating connection relationship between the intermediate rod 4 and the connecting block 3, a first waist-shaped groove 27 is provided on the intermediate rod 4, and a pin shaft 28 penetrating the first waist-shaped groove 27 is fixed on the connecting block 3. Two inclined second waist-shaped grooves 29 are provided on the placement box 8. The two second waist-shaped grooves 29 are symmetrically distributed, and the lengths of the two second waist-shaped grooves 29 are the same as the length of the first waist-shaped groove 27. The movable rod 13 slides inside the two second waist-shaped grooves 29. When the electric push rod 5 pushes the intermediate rod 4, the intermediate rod 4 moves to one side through the first waist-shaped groove 27. The intermediate rod 4 pushes the movable block 12 and the movable rod 13 to move obliquely downward until the connecting rod 9 rotates under the drive of the first rotating piece 10.

[0038] Reference Figure 9 As shown in the figure, in order to ensure the stability of the rocker arm 21, a torsion spring 30 is provided on one side of the rotating shaft 20, and a limiting block 31 is fixed at the bottom of the rocker arm 21. One end of the torsion spring 30 contacts the limiting block 31.

[0039] Reference Figure 5 and Figure 6 As shown in the figure, a first connecting ear 32 is fixed on the first rotating piece 10, and the first connecting ear 32 is rotatably connected with the connecting piece 11;

[0040] A second connecting ear 33 is fixed on the second rotating piece 15, and the second connecting ear 33 is rotatably connected with the connecting arm 18.

[0041] Reference Figure 5 As shown in the figure, considering that when the hatch door 2 is reset, the rocker arm 21 will drive the clamping block 17 to swing. A middle shaft 34 is fixed inside the fixed box 14, and a spring rod 35 is clamped on the middle shaft 34. One end of the spring rod 35 away from the middle shaft 34 is rotatably connected with the connecting arm 18. When the rocker arm 21 rotates after contacting the locking shaft 26, the top block 22 drives the clamping block 17 to swing until the top block 22 is completely located inside the clamping groove 19. The spring rod 35 ensures the contact tightness between the clamping block 17 and the top block 22.

[0042] Reference Figure 1 and Figure 2 As shown in the figure, an opening door 36 is provided inside the housing 1, and the opening door 36 is located on the opening side of the hatch door 2.

[0043] A protective cover is fixedly installed at the bottom of the placement box 8 and the two fixed boxes 14 respectively, which is used to protect the transmission assembly and the locking assembly, and the staff can detach the protective cover to maintain the internal components.

[0044] Considering the overall weight of the hatch 2, if a pure metal material is used, it will increase the load of the drone or helicopter, resulting in a reduction in the weight of the supplies inside the pod. The material of the hatch 2 is carbon fiber. The inside of the hatch 2 is a hollow structure and is filled with honeycomb-shaped support materials. A sleeve is arranged between the placement box 8 and the two fixed boxes 14 and sleeved on the connecting rod 9, and the sleeve is used to protect the connecting rod 9 from the influence of the honeycomb-shaped support materials.

[0045] When the utility model is in use:

[0046] First, an electrical signal is sent to the electric push rod 5. After the electric push rod 5 is activated, the middle rod 4 will first move a certain distance to one side. At this time, the movable block 12 moves obliquely downward under the push of the middle rod 4, and the first rotating piece 10 rotates under the conduction of the connecting piece 11, and the connecting rod 9 rotates accordingly;

[0047] Then, the rotation of the connecting rod 9 drives the second rotating piece 15 in the locking assembly to rotate. The connecting arm 18 drives the clamping block 17 to swing to one side. After the rocker arm 21 rotates, the second clamping block 24 is disengaged from the limit of the lock shaft 26, and the hatch 2 is completely opened under the push of the electric push rod 5;

[0048] Finally, when the hatch 2 is closed, the electric push rod 5 drives the hatch 2 to retract. After the first clamping block 23 contacts the lock shaft 26, the rocker arm 21 flips. When the top block 22 is located inside the card slot 19 again, the second clamping block 24 is re-limited with the lock shaft 26.

[0049] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A door assembly for an aircraft pylon, comprising a housing (1), characterized in that: The bottom of the shell (1) is rotatably connected to a hatch (2), a connecting block (3) is fixed on one side of the top of the hatch (2), an intermediate rod (4) is connected to the connecting block (3), an electric push rod (5) is rotatably connected to a side wall of the shell (1), an output end of the electric push rod (5) is fixedly connected to the intermediate rod (4), a notch (6) is provided on a side of the hatch (2) close to the connecting block (3), a transmission assembly is arranged inside the notch (6), and two symmetrically distributed notches (7) are provided on the hatch (2), and locking assemblies are fixed in both notches (7); The transmission assembly comprises a placement box (8) fixed inside the notch (6), the placement box (8) is rotatably connected with a connecting rod (9) inside, one end of the connecting rod (9) penetrates into the two notches (7), the end of the connecting rod (9) located inside the placement box (8) is coaxially fixed with a first rotating plate (10), a connecting plate (11) is rotatably connected to the first rotating plate (10), the end of the connecting plate (11) away from the connecting ear is rotatably connected with a movable block (12), the end of the movable block (12) away from the connecting plate (11) is fixed with a movable rod (13), the movable rod (13) is slidably connected with the placement box (8), a connecting port is opened at the top of the placement box (8), the movable block (12) is located in the connecting port, and the end of the intermediate rod (4) away from the electric push rod (5) is in contact with the movable block (12); The locking assembly comprises a fixing box (14) fixed inside the notch (7); a second rotating piece (15) is coaxially fixed on the connecting rod (9); a connecting shaft (16) is rotatably connected inside the fixing box (14); a clamping block (17) is fixed on the connecting shaft (16); one end of the clamping block (17) is rotatably connected to a connecting arm (18); an end of the connecting arm (18) away from the clamping block (17) is rotatably connected to the second rotating piece (15); a clamping groove (19) is provided on a side of the clamping block (17) away from the connecting arm (18); a rotating shaft (20) is rotatably connected inside the fixing box (14); A rocker arm (21) is fixed on the rotating shaft (20), a top block (22) is arranged at one end of the rocker arm (21), one end of the top block (22) is located in the card slot (19), a first clamping block (23) and a second clamping block (24) are respectively fixed at the other end of the rocker arm (21), the first clamping block (23) is located below the second clamping block (24), the length of the first clamping block (23) is greater than the length of the second clamping block (24), and two connecting seats (25) are fixed on one side of the housing (1) close to the rocker arm (21), and a locking shaft (26) is fixed on the connecting seat (25).

2. The door assembly of an airborne pylon according to claim 1, characterized in that: The intermediate rod (4) is provided with a first waist-shaped groove (27), the connecting block (3) is fixed with a pin shaft (28) penetrating the first waist-shaped groove (27), the placement box (8) is provided with two inclined second waist-shaped grooves (29), the two second waist-shaped grooves (29) are symmetrically distributed, the length of the two second waist-shaped grooves (29) is consistent with the length of the first waist-shaped groove (27), and the movable rod (13) slides inside the two second waist-shaped grooves (29).

3. The door assembly of an airborne pylon according to claim 1, characterized in that: A torsion spring (30) is provided on one side of the rotating shaft (20), a limiting block (31) is fixed at the bottom of the rocker arm (21), and one end of the torsion spring (30) is in contact with the limiting block (31).

4. The door assembly of an aircraft pylon according to claim 1, characterized in that: A first connecting ear (32) is fixed on the first rotating piece (10), and the first connecting ear (32) is rotatably connected to the connecting piece (11); A second connecting ear (33) is fixed on the second rotating plate (15), and the second connecting ear (33) is rotatably connected to the connecting arm (18).

5. The door assembly of an aircraft pylon according to claim 1, characterized in that: An intermediate shaft (34) is fixed inside the fixed box (14), a spring rod (35) is clamped on the intermediate shaft (34), and one end of the spring rod (35) away from the intermediate shaft (34) is rotatably connected to the connecting arm (18).

6. The door assembly of an aircraft pylon according to claim 1, characterized in that: Two symmetrically distributed opening doors (36) are provided on the side of the shell (1), and the opening doors (36) are located on the opening side of the cabin door (2).

7. The door assembly of an aircraft pylon according to claim 1, characterized in that: Protective covers are respectively fixed to the bottoms of the placement box (8) and the two fixing boxes (14).

8. The door assembly of an aircraft pylon according to claim 1, characterized in that: The hatch (2) is made of carbon fiber, the interior of the hatch (2) is a hollow structure and is filled with honeycomb support material, and a sleeve sleeved on the connecting rod (9) is provided between the placement box (8) and the two fixing boxes (14).

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