Model aircraft landing gear with hub easy to replace

Abstract

The utility model relates to the technical field of airplane model components, and discloses a model airplane landing gear with a hub easy to replace, which comprises a support plate, the bottom end of the support plate is fixedly connected with a mounting frame, the bottom of the mounting frame is fixedly connected with a protective shell, the inside of the protective shell is fixedly connected with a fixed shell, and the inside of the fixed shell is slidably connected with a sliding rod. A bearing is fixedly connected to the left end of the sliding rod, a connecting rod is rotatably connected to the outer portion of the bearing, rotating devices are rotatably connected to the two ends of the connecting rod, a rim is rotatably connected to the left sides of the rotating devices, and a telescopic assembly for stretching and retracting the undercarriage is fixedly connected to the bottom of the fixing plate. According to the utility model, the sliding rod is dragged to be fixed, so that the rotating device clamps the rim, and when the hub of the model needs to be replaced, a player can better replace the hub through a simple disassembly process without complicated tools and long-time operation.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft model components, in particular to a model aircraft landing gear with easily replaceable wheel hubs. Background Art

[0002] Model airplanes are a tool for popularizing science, entertainment, and competition. Landing gear with easily replaceable wheels provides people with more fun and challenges. The wheels are connected to the landing gear body through a specific connection method, making wheel replacement more convenient. Landing gear with easily replaceable wheels usually adopts a quick-release design, which allows for quick removal and installation of the wheels through simple operations.

[0003] In the prior art, replacing the wheel hub of traditional landing gear may require the use of tools such as screwdrivers for tedious disassembly and installation operations, while landing gear with easy-to-replace wheel hubs usually adopts a quick-release design, which can quickly complete the disassembly and installation of the wheel hub through buckles and pins, greatly saving maintenance time and operation difficulty. Therefore, a model aircraft landing gear with easy-to-replace wheel hubs is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a model aircraft landing gear with easily replaceable wheel hubs, aiming to improve the problem in the prior art that the landing gear requires the use of specific tools to disassemble and install the wheel hubs, which increases the difficulty and time cost of the operation.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The invention discloses a model aircraft landing gear with easily replaceable wheel hubs, comprising a support plate and a fixed plate, wherein the bottom end of the support plate is fixedly connected to a mounting frame, the bottom of the mounting frame is fixedly connected to a protective shell, the interior of the protective shell is fixedly connected to a fixed shell, the interior of the fixed shell is slidably connected to a sliding rod, the left end of the sliding rod is fixedly connected to a bearing, the outside of the bearing is rotatably connected to a connecting rod, both ends of the connecting rod are rotatably connected to a rotator, the left side of the rotator is rotatably connected to a wheel rim, the bottom of the fixed plate is fixedly connected to a telescopic component for telescoping the landing gear, the right end of the fixed shell is fixedly connected to a fixing component for replacing the wheel hub, and the left end of the protective shell is fixedly connected to a sliding component for fixing the wheel hub.

[0007] As a further description of the above technical solution:

[0008] The telescopic assembly includes a second fixing clamp, the inner wall of the second fixing clamp is fixedly connected to a first rotating shaft, the outside of the first rotating shaft is slidably connected to a first follower plate, the top of the first follower plate is slidably connected to a second rotating shaft, the outside of the second rotating shaft is slidably connected to a second follower plate, the top of the second follower plate is slidably connected to the outside of a third fixing clamp, the inner wall of the third fixing clamp is rotatably connected to a third rotating shaft, and the top of the third fixing clamp is fixedly connected to a fixed plate.

[0009] As a further description of the above technical solution:

[0010] The fixing assembly includes a clamp, the inner wall of the clamp is rotatably connected to a buckle, the top of the right end of the sliding rod is provided with a hole, the bottom of the right end of the buckle is engaged with the top of the hole, and the bottom of the left end of the buckle is fixedly connected to a spring.

[0011] As a further description of the above technical solution:

[0012] The sliding assembly includes a protective shell, both ends of the left side of the protective shell are fixedly connected with screws, and the bottoms of the two screws are slidably connected with rotators.

[0013] As a further description of the above technical solution:

[0014] The top of the fixed shell is fixedly connected with a spring, the bottom of the spring is fixedly connected to the top of the fixed shell, the inner wall of the fixed shell is slidably connected to the slide rod, and the left end of the slide rod is rotatably connected to the left side of the protective shell.

[0015] As a further description of the above technical solution:

[0016] The front end of the bottom of the fixing plate is fixedly connected with a fixing clamp 1, the inner wall of the fixing clamp 1 is fixedly connected with a rotating shaft, the outer side of the rotating shaft is rotatably connected with a damper, and the bottom of the damper is fixedly connected with a support plate.

[0017] As a further description of the above technical solution:

[0018] The top of the fixed plate is fixedly connected to a fixing clamp four, the inner wall of the top of the fixing clamp four is slidably connected to a pivot, the left side of the pivot is fixedly connected to a pneumatic cylinder, and the bottom of the pneumatic cylinder is rotatably connected to a rotating shaft two.

[0019] As a further description of the above technical solution:

[0020] The left end of the protective shell is snap-connected with a wheel rim, and the outside of the wheel rim is fixedly connected with a tire.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the sliding rod is pulled to fix it so that the rotator clamps the wheel rim. When the model needs to replace the wheel hub, the simple disassembly process allows the player to better replace it without complicated tools and long operation.

[0023] 2. In the present invention, the pneumatic cylinder is extended and pulled to push and pull the rotating shaft 2, so that the follower plate 1 is lifted and rotated to drag the wheel hub part to be retracted. The retraction of the wheel hub can protect the safety of the device as a whole during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of the model aircraft landing gear with easily replaceable wheels proposed in the present invention;

[0025] Figure 2 This is a schematic structural diagram of a damper for a model aircraft landing gear with easily replaceable hubs proposed in the present invention;

[0026] Figure 3 This is a schematic structural diagram of the wheel hub of the model aircraft landing gear with easy-to-replace wheel hub proposed in the present invention;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 A schematic structural diagram of a pneumatic cylinder of a model airplane landing gear with easily replaceable wheel hubs proposed by the utility model.

[0029] Legend:

[0030] 1. Fixing plate; 2. Fixing clamp 1; 3. Damper; 4. Support plate; 5. Mounting frame; 6. Protective shell; 7. Fixing shell; 8. Sliding rod; 9. Bearing; 10. Connecting rod; 11. Rotator; 12. Rim; 13. Tire; 14. Fixing clamp 2; 15. Rotating shaft 1; 16. Follower plate 1; 17. Rotating shaft 2; 18. Follower plate 2; 19. Fixing clamp 3; 20. Rotating shaft 3; 21. Pneumatic cylinder; 22. Pivot; 23. Fixing clamp 4; 24. Rotating shaft; 25. Screw; 26. Clamp; 27. Buckle; 28. Spring; 29. ​​Hole. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 , Figure 3 and Figure 4 The utility model provides an embodiment: a model aircraft landing gear with easily replaceable wheel hubs, comprising a support plate 4, a mounting bracket 5 fixedly connected to the bottom end of the support plate 4, the mounting bracket 5 provides a stable support structure for the landing gear, ensuring that the landing gear can be firmly mounted on the aircraft model 5, and a protective shell 6 fixedly connected to the bottom of the mounting bracket 5, which can effectively protect the internal components from the influence of the external environment and extend the service life of the landing gear 6.

[0033] The protective shell 6 is fixedly connected to a fixed shell 7, and the fixed shell 7 provides a stable sliding track for the slide bar 8 to ensure that the slide bar 8 can move left and right smoothly 7. The fixed shell 7 is slidably connected to the slide bar 8. The left and right movement of the slide bar 8 can drive the connecting rod 10 to move, thereby realizing the replacement and fixation of the wheel hub 8. The left end of the slide bar 8 is fixedly connected to a bearing 9. The bearing 9 enables the connecting rod 10 to rotate freely, reducing friction resistance and improving the operating efficiency of the landing gear 9. The external rotation of the bearing 9 is connected to the connecting rod 10. The movement of the connecting rod 10 can drive the rotator 11 to rotate, thereby realizing the fixing and release of the wheel hub 10. Both ends of the connecting rod 10 are rotatably connected to the rotator 11. The rotation of the rotator 11 can drive the wheel rim 12 to fix or loosen, which is convenient for the replacement of the wheel hub 11. The left side of the rotator 11 is rotatably connected to the wheel rim 12. The wheel rim 12 provides an installation base for the tire 13 to ensure that the tire 12 can rotate stably.

[0034] The bottom of the fixed plate 1 is fixedly connected to a telescopic component for extending and retracting the landing gear. The telescopic component can realize the retraction and extension of the landing gear, which is convenient for the storage and transportation of the aircraft model 1. The right end of the fixed shell 7 is fixedly connected to a fixed component for replacing the wheel hub. The fixed component can quickly replace the wheel hub, which improves the maintenance efficiency of the aircraft model 7. The left end of the protective shell 6 is fixedly connected to a sliding component for fixing the wheel hub. The sliding component can ensure the stability of the wheel hub when fixed, thereby improving the flight safety of the aircraft model 6.

[0035] Reference Figure 1 、 Figure 2 and Figure 5 The telescopic assembly includes a fixing clamp 2 14, which firmly fixes the rotating shaft 15 inside it to ensure that the rotating shaft 15 can rotate stably 14. The inner wall of the fixing clamp 2 14 is fixedly connected with the rotating shaft 15. The rotating shaft 15 serves as the rotating axis of the follower plate 16, so that the follower plate 16 can perform corresponding movement 15 during the extension and retraction of the landing gear. The outside of the rotating shaft 15 is slidably connected with the follower plate 16. The movement of the follower plate 16 can drive the rotating shaft 2 17 to move, thereby realizing the extension and retraction of the landing gear 16.

[0036] The top of the follower plate 16 is slidably connected to the rotating shaft 2 17, and the rotating shaft 2 17 serves as the rotating shaft of the follower plate 2 18. It is also connected to the pneumatic cylinder 21, so that the pneumatic cylinder 21 can drive the follower plate 2 18 to move through the rotating shaft 2 17 17. The outside of the rotating shaft 2 17 is slidably connected to the follower plate 2 18. The rotation of the follower plate 2 18 can drive the fixed clamp 3 19 to move, thereby realizing the retraction and extension of the landing gear 18. The top of the follower plate 2 18 is slidably connected to the outside of the fixed clamp 3 19. The fixed clamp 3 19 fixes the rotating shaft 3 20 inside it to ensure that the rotating shaft 3 20 can rotate stably 19. The inner wall of the fixed clamp 3 19 is rotatably connected to the rotating shaft 3 20. The rotating shaft 3 20 is connected to the fixed plate 1, so that the landing gear can be firmly mounted on the aircraft model 20. The top of the fixed clamp 3 19 is fixedly connected to the fixed plate 1.

[0037] The front end of the bottom of the fixing plate 1 is fixedly connected with a fixing clamp 2, which firmly fixes the rotating shaft 24 inside it to ensure that the rotating shaft 24 can rotate stably 2. The inner wall of the fixing clamp 2 is fixedly connected with the rotating shaft 24. The rotating shaft 24 serves as the rotating shaft of the damper 3, so that the damper 3 can play a shock-absorbing role during the take-off and landing of the aircraft model 24. The external rotation of the rotating shaft 24 is connected with the damper 3. The damper 3 can effectively reduce the vibration of the aircraft model during take-off and landing, and protect the landing gear and other parts of the model aircraft 3. The bottom of the damper 3 is fixedly connected with a support plate 4, which provides support for the damper 3 to ensure that the damper 3 can work stably 4.

[0038] A fixing clamp four 23 is fixedly connected to the top of the fixing plate 1, and the fixing clamp four 23 firmly fixes the pivot 22 inside it to ensure that the pivot 22 can rotate stably 23. The inner wall of the top of the fixing clamp four 23 is slidably connected to the pivot 22. The pivot 22 serves as the rotating axis of the pneumatic cylinder 21, so that the pneumatic cylinder 21 can perform corresponding movement 22 during the extension and retraction of the landing gear. The left side of the pivot 22 is fixedly connected to the pneumatic cylinder 21. The pneumatic cylinder 21 provides power for the extension and retraction of the landing gear, so that the landing gear can realize the retraction and extension function 21. The bottom of the pneumatic cylinder 21 is rotatably connected to the rotating shaft 2 17. The rotating shaft 2 17 serves as the rotating axis of the follower plate 2 18, and is also connected to the pneumatic cylinder 21, so that the pneumatic cylinder 21 can drive the follower plate 2 18 to move through the rotating shaft 2 17.

[0039] Reference Figure 1 、 Figure 3 and Figure 5The assembly includes a clamp 26, which provides a mounting base for the buckle 27, ensuring that the buckle 27 can work stably 26. The inner wall of the clamp 26 is rotatably connected with a buckle 27, which is engaged with the hole 29 at the top of the right end of the slide bar 8 to fix the position of the slide bar 8, thereby achieving the fixation of the wheel hub 27. A hole 29 is opened at the top of the right end of the slide bar 8, and the hole 29 is used in conjunction with the buckle 27 to achieve the fixation and release of the slide bar 8, making it convenient to replace the wheel hub 29. The bottom of the right end of the buckle 27 is engaged with the top of the hole 29. The snap connection method is simple and reliable, and can quickly fix the position 27, 29 of the slide bar 8. The bottom of the left end of the buckle 27 is fixedly connected with a spring 28, which can provide elastic force for the buckle 27, so that the buckle 27 can automatically reset, thereby improving the efficiency of wheel hub replacement 28.

[0040] The sliding assembly includes a protective shell 6, which provides an installation base for the screw 25 to ensure that the screw 25 can be firmly fixed on the protective shell 6. Screws 25 are fixedly connected at both ends of the left side of the protective shell 6. The screws 25 fix the rotator 11 on the protective shell 6 and also limit the movement trajectory of the rotator 11, so that the rotator 11 can rotate in a predetermined manner 25. The bottom of the two screws 25 is slidably connected to the rotator 11. The rotation of the rotator 11 can drive the wheel rim 12 to be fixed or loosened, which facilitates the replacement of the wheel hub 11.

[0041] The left end of the protective shell 6 is snap-connected with a rim 12, which provides a mounting base for the tire 13, ensuring that the tire 12 can rotate stably. The rim 12 is fixedly connected to the inner wall of the tire 13, and the tire 13 provides support and cushioning for the aircraft model, ensuring that the aircraft model can take off and land smoothly.

[0042] Working principle: Place the airplane model, turn on the pneumatic cylinder 21 to drive the second shaft 17 to slide, so that the second follower plate 18 rotates. Because the bottom of the second follower plate 18 is also connected to the second shaft 17, the rotation of the second follower plate 18 drives the pneumatic cylinder 21 to rotate. The rotation of the second shaft 17 drags the first follower plate 16 to rise and retract the model landing gear. Lift the buckle 27 and push and pull the slide bar 8 so that the right end of the buckle 27 is placed in the hole 29. By pushing and pulling the slide bar 8, the left end of the slide bar 8 starts to move the connecting rod 10 left and right. The two ends of the connecting rod 10 are connected to the rotator 1. 1, so the rotator 11 starts to rotate left and right. Because the screw 25 is fixed in the bottom of the protective shell 6 and contacts the C-shaped hole at the top of the rotator 11, the rotation of the rotator 11 becomes C and drives the left end block to move and engage the connecting wheel rim 12 for fixation. Pushing the slide bar 8 to the left can make the two rotators 11 rotate to loosen the wheel rim 12. The fixing device 2 is fixed at the bottom of the fixing plate 1 to ensure the safety and shock absorption of the damper 3. The bottom of the fixing plate 1 increases the service life of the bracket, so that the damper 3 can play a shock-absorbing role during the take-off and landing of the model aircraft, protecting the landing gear and other components of the model aircraft.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A model aircraft landing gear with easily replaceable hubs, comprising a support plate (4) and a fixing plate (1), characterized in that: The bottom end of the support plate (4) is fixedly connected to a mounting frame (5), the bottom of the mounting frame (5) is fixedly connected to a protective shell (6), the interior of the protective shell (6) is fixedly connected to a fixed shell (7), the interior of the fixed shell (7) is slidably connected to a slide rod (8), the left end of the slide rod (8) is fixedly connected to a bearing (9), the outside of the bearing (9) is rotatably connected to a connecting rod (10), both ends of the connecting rod (10) are rotatably connected to a rotator (11), the left side of the rotator (11) is rotatably connected to a wheel rim (12), the bottom of the fixed plate (1) is fixedly connected to a telescopic component for telescoping the landing gear, the right end of the fixed shell (7) is fixedly connected to a fixed component for replacing the wheel hub, and the left end of the protective shell (6) is fixedly connected to a sliding component for fixing the wheel hub.

2. The model aircraft landing gear with easily replaceable hubs according to claim 1, characterized in that: The telescopic assembly includes a second fixing clamp (14), the inner wall of the second fixing clamp (14) is fixedly connected to a first rotating shaft (15), the outer portion of the first rotating shaft (15) is slidably connected to a first follower plate (16), the top portion of the first follower plate (16) is slidably connected to a second fixing clamp (17), the outer portion of the second rotating shaft (17) is slidably connected to a second follower plate (18), the top portion of the second follower plate (18) is slidably connected to the outer portion of a third fixing clamp (19), the inner wall of the third fixing clamp (19) is rotatably connected to a third rotating shaft (20), and the top portion of the third fixing clamp (19) is fixedly connected to the fixed plate (1).

3. The model aircraft landing gear with easily replaceable hubs according to claim 1, characterized in that: The fixing assembly includes a clamp (26), the inner wall of the clamp (26) is rotatably connected to a buckle (27), the top of the right end of the slide rod (8) is provided with a hole (29), the bottom of the right end of the buckle (27) is engaged with the top of the hole (29), and the bottom of the left end of the buckle (27) is fixedly connected to a spring (28).

4. The model aircraft landing gear with easily replaceable hubs according to claim 1, characterized in that: The sliding assembly comprises a protective shell (6), both ends of the left side of the protective shell (6) are fixedly connected with screws (25), and the bottoms of the two screws (25) are slidably connected with a rotator (11).

5. The model aircraft landing gear with easily replaceable hubs according to claim 3, characterized in that: The bottom of the spring (28) is fixedly connected to the top of the fixed shell (7), the bottom of the spring (28) is fixedly connected to the top of the fixed shell (7), the inner wall of the fixed shell (7) is slidably connected to the slide rod (8), and the left end of the slide rod (8) is rotatably connected to the left side of the protective shell (6).

6. The model aircraft landing gear with easily replaceable hubs according to claim 2, characterized in that: The front end of the bottom of the fixing plate (1) is fixedly connected to a fixing clamp (2), the inner wall of the fixing clamp (2) is fixedly connected to a rotating shaft (24), the outer portion of the rotating shaft (24) is rotatably connected to a damper (3), and the bottom of the damper (3) is fixedly connected to a support plate (4).

7. The model aircraft landing gear with easily replaceable hubs according to claim 6, characterized in that: The top of the fixed plate (1) is fixedly connected to a fixing clamp four (23), the inner wall of the top of the fixing clamp four (23) is slidably connected to a pivot (22), the left side of the pivot (22) is fixedly connected to a pneumatic cylinder (21), and the bottom of the pneumatic cylinder (21) is rotatably connected to a rotating shaft two (17).

8. The model aircraft landing gear with easily replaceable hubs according to claim 1, characterized in that: The left end of the protective shell (6) is snap-connected with a wheel rim (12), and the outside of the wheel rim (12) is fixedly connected with a tire (13).

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