Undercarriage mechanism of space shuttle model

Abstract

The utility model relates to the technical field of model airplanes, and discloses a space shuttle model undercarriage mechanism which comprises two first shells, second fixing plates are fixedly connected to the left end and the right end of the front side of the first shell on the rear side, a self-locking mechanism is rotationally connected to the outer walls of the second fixing plates, and a third fixing plate is rotationally connected to the bottom end of the self-locking mechanism. A hatch cover is fixedly connected between the adjacent rear sides of the two third fixing plates, and a first fixing plate is fixedly connected to the middle of the front side of the first shell on the rear side. In the utility model, the motor is started to output power, the first rotary joint is driven to rotate through the transmission connecting rod, the wheels are driven to turn over to touch the ground, and after the transmission connecting rod is in place, the self-locking mechanism at the second rotary joint locks and prevents reverse movement, so that the transmission precision and the scene reduction degree are improved, the stable unfolding posture of the undercarriage is kept, and the cabin cover of the undercarriage is simultaneously opened in the process; and the process is ensured to be smooth and unobstructed, so that daily use requirements of operators are met.

Description

Technical Field

[0001] This utility model relates to the field of model aircraft technology, and in particular to a landing gear mechanism for a space shuttle model. Background Technology

[0002] The landing gear technology of the space shuttle was developed based on the landing gear technology of aircraft, but it also has its own unique requirements and characteristics. Due to the high speed and heavy landing weight of the space shuttle during reentry, and the need to land under various weather conditions and runway conditions, higher requirements are placed on the structural strength, cushioning performance, braking performance and reliability of the landing gear. Its landing gear adopts advanced design and materials, such as high-strength aluminum alloy and titanium alloy, to reduce weight and improve load-bearing capacity. At the same time, it is also equipped with a complex cushioning system and braking system to ensure safe landing.

[0003] The landing gear systems of current space shuttle and spacecraft simulation models generally suffer from significant technical limitations: mainstream products use fixed wheel frames or simple manual folding structures, which can only achieve static storage or basic angle adjustment, and cannot reproduce the electromechanical coordination of the actual landing gear retraction and extension process. The manual mechanism relies on external force from the user, lacks a self-locking function after deployment, and often causes the wheel frame to swing back due to vibration. Moreover, the wheel steering angle deviation is >15°, making it difficult to accurately simulate landing attitude. At the same time, the landing gear canopy is often disconnected from the wheel frame movement and requires separate operation, which can cause jamming or even component interference during the deployment process. These defects severely limit the dynamic demonstration function of the model, thus reducing the user experience. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a landing gear mechanism for a space shuttle model, which aims to improve the existing technology's inability to reproduce the electromechanical coordination of the real landing gear retraction process, the lack of self-locking function after deployment, and the resulting wheel frame swing angle deviation of >15°, making it difficult to accurately simulate the landing attitude.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a landing gear mechanism for a space shuttle model, comprising two outer shells, wherein fixed plates are fixedly connected to the left and right ends of the front side of the rear outer shell, a self-locking mechanism is rotatably connected to the outer wall of the fixed plate, a fixed plate is rotatably connected to the bottom end of the self-locking mechanism, a hatch is fixedly connected between the rear adjacent sides of the two fixed plates, a fixed plate is fixedly connected to the middle of the front side of the rear outer shell, a rotating shaft is rotatably connected to the middle of the front side of the fixed plate, a rotating joint is rotatably connected to the front side of the rotating shaft, a sliding sleeve is rotatably connected to the other end of the rotating joint, a transmission link is slidably connected to the inner side of the sliding sleeve, a rotating joint is rotatably connected to the outer wall of the sliding sleeve, an L-shaped plate is fixedly connected to the other end of the rotating joint, a wheel is rotatably connected to the outer wall of the L-shaped plate, and a motor is fixedly connected to the rear right end of the rear outer shell.

[0006] As a further description of the above technical solution:

[0007] A tripod is fixedly connected to the upper middle part of the rear side of the outer wall of the transmission link, and a support rod is fixedly connected to the top of the tripod.

[0008] As a further description of the above technical solution:

[0009] A tripod is fixedly connected to the upper middle part of the front side of the outer wall of the transmission link.

[0010] As a further description of the above technical solution:

[0011] The top of the tripod two is fixedly connected to the support rod two.

[0012] As a further description of the above technical solution:

[0013] A second outer shell is fixedly connected between the inner sides of the two adjacent outer shells.

[0014] As a further description of the above technical solution:

[0015] The bottom of the transmission link is rotatably connected to the top of the L-shaped plate.

[0016] As a further description of the above technical solution:

[0017] The other end of the second support rod and the first support rod are fixedly connected to the outer wall of the corresponding outer shell.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, through precise transmission locking and multi-component coordination, a motor drive, transmission linkage, rotary joint II, self-locking mechanism, and canopy linkage are integrated. The rotary joint I achieves a 90° rotation of the wheel, starts the motor to output power, and drives the rotary joint I to rotate via the transmission linkage, driving the wheel to rotate and touch the ground. After reaching the position, the self-locking mechanism at the rotary joint II locks to prevent reverse movement. At the same time, the linkage mechanism controls the synchronous opening and closing of the landing gear canopy. Therefore, this solution fills the gap in dynamic interaction, improves transmission accuracy and scene reproduction, maintains the stable posture of the landing gear deployment, and provides support for simulating space shuttle landing and other working conditions. During this process, the landing gear canopy opens simultaneously to ensure a smooth and unobstructed process, thus facilitating the daily use needs of operators. Attached Figure Description

[0020] Figure 1 This is a front perspective view of a landing gear mechanism for a space shuttle model proposed in this utility model;

[0021] Figure 2 This is a partial structural exploded view of a landing gear mechanism for a space shuttle model proposed in this utility model;

[0022] Figure 3 This is a partial structural diagram of a landing gear mechanism for a space shuttle model proposed in this utility model;

[0023] Figure 4 This is a partial structural diagram illustrating a landing gear mechanism for a space shuttle model proposed in this utility model.

[0024] Figure 5 This is a partial structural schematic diagram of a landing gear mechanism for a space shuttle model proposed in this utility model;

[0025] Figure 6 This is a partial structural schematic diagram of a landing gear mechanism for a space shuttle model proposed in this utility model.

[0026] Legend:

[0027] 1. Outer shell one; 2. Outer shell two; 3. Transmission link; 4. Rotary joint one; 5. Wheel; 6. Hatch cover; 7. Motor; 8. Rotary joint two; 9. Fixing plate one; 10. Fixing plate two; 11. Self-locking mechanism; 12. Fixing plate three; 13. Sliding sleeve; 14. Rotating shaft; 15. Support rod one; 16. Tripod one; 17. Support rod two; 18. Tripod two; 19. L-shaped plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides a landing gear mechanism for a space shuttle model, comprising two outer shells 1. A fixing plate 10 is fixedly connected to the left and right ends of the front side of the rear outer shell 1. A self-locking mechanism 11 is rotatably connected to the outer wall of the fixing plate 10. A fixing plate 3 12 is rotatably connected to the bottom end of the self-locking mechanism 11. A hatch 6 is fixedly connected between adjacent rear sides of the two fixing plates 3 12. A fixing plate 9 is fixedly connected to the middle of the front side of the rear outer shell 1. A rotating shaft 14 is rotatably connected to the middle of the front side of the fixing plate 9. A rotating joint 2 8 is rotatably connected to the front side of the rotating shaft 14. A sliding sleeve 13 is rotatably connected to the other end of the rotating joint 2 8. A transmission connecting rod 3 is slidably connected to the inner side of the sliding sleeve 13. A rotating joint 4 is rotatably connected to the outer wall of the sliding sleeve 13. An L-shaped plate 19 is fixedly connected to the other end of the rotating joint 14. A wheel 5 is rotatably connected to the outer wall of the L-shaped plate 19. A motor 7 is fixedly connected to the right rear end of the rear outer shell 1.

[0030] Specifically, the bottom pivot 14 of the self-locking mechanism 11 is rotatably connected to the fixed plate 3 12. The two fixed plates 3 12 are fixedly connected to the hatch 6 on their rear sides. The opening and closing state of the hatch 6 directly affects the operation inside the cabin. The internal structure of the rear outer shell 1 provides protection. The front middle part of the fixed plate 9 is fixedly connected to the fixed plate 9. The front middle part of the fixed plate 9 is rotatably connected to the rotating joint 2 8 through the pivot 14. The pivot 14 ensures that the rotating joint 2 8 can rotate flexibly. The other end of the rotating joint 2 8 is rotatably connected to the sliding sleeve 13. The sliding sleeve 13 is hollow inside, and the transmission connecting rod 3 is slidably connected to the inside. It can slide inside the sliding sleeve 13, thereby realizing the transmission of power and the change of direction. The outer wall of the sliding sleeve 13 is also rotatably connected to the rotating joint 4 through the pivot 14.

[0031] Please see the appendix Figure 4 - Appendix Figure 6The top of tripod 2 18 is fixedly connected to support rod 2 17. Tripod 2 18 is fixedly connected to the upper middle part of the front side of the outer wall of transmission link 3. Tripod 1 16 is fixedly connected to the upper middle part of the rear side of the outer wall of transmission link 3. Support rod 15 is fixedly connected to the top of tripod 16. Outer shell 2 is fixedly connected between the inner sides of the two outer shells 1. The bottom of transmission link 3 is rotatably connected to the top of L-shaped plate 19. The other ends of support rod 2 17 and support rod 15 are fixedly connected to the corresponding outer wall of outer shell 1.

[0032] Specifically, tripod 16 and tripod 2 18 work together to provide all-round support for the transmission link 3. The top of tripod 16 extends upward and is fixedly connected to support rod 15. The inner sides of the tripod 16 are fixedly connected to outer shell 2. Outer shell 2 not only further enhances the structural strength of the entire device, but also allows the bottom of the transmission link 3 to be rotatably connected to the top of L-shaped plate 19 through pivot 14. This rotatable connection allows the transmission link 3 to rotate flexibly relative to L-shaped plate 19. The other ends of support rod 2 17 and support rod 15 are fixedly connected to the outer wall of the corresponding outer shell 1, stably transmitting the force borne by the transmission link 3 and related components to outer shell 1, ensuring the stability of the entire device during operation.

[0033] Working principle: Through precise transmission locking and multi-component coordination, the system integrates motor 7 for drive, transmission link 3, rotary joint 2 8, self-locking mechanism 11, and canopy 6 for linkage. Rotary joint 1 4 enables the wheels to rotate 590°, followed by self-locking at rotary joint 2 8 degrees to stabilize the posture. Subsequently, outer shell 1 1 and outer shell 2 2 move synchronously to ensure smooth operation. When needed, motor 7 is started to output power, which drives rotary joint 1 4 to rotate via transmission link 3, driving wheel 5 to rotate and touch the ground. Once in position, self-locking mechanism 11 at rotary joint 2 8 locks to prevent reverse movement. At the same time, the linkage mechanism controls the landing gear canopy 6 to open and close synchronously. Therefore, this solution fills the gap in dynamic interaction, improves transmission accuracy and scene reproduction, and facilitates the daily use needs of operators.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A landing gear mechanism for a space shuttle model, comprising two outer shells (1), characterized in that: The left and right ends of the front side of the rear outer shell 1 (1) are fixedly connected to the fixing plate 2 (10). The outer wall of the fixing plate 2 (10) is rotatably connected to the self-locking mechanism (11). The bottom end of the self-locking mechanism (11) is rotatably connected to the fixing plate 3 (12). The rear sides of the two fixing plates 3 (12) are fixedly connected to the hatch cover (6). The middle of the front side of the rear outer shell 1 (1) is fixedly connected to the fixing plate 1 (9). The middle of the front side of the fixing plate 1 (9) is rotatably connected to the rotating shaft (14). 14) is rotatably connected to a rotating joint two (8) at the front side, and a sliding sleeve (13) is rotatably connected to the other end of the rotating joint two (8). A transmission link (3) is rotatably connected to the inner side of the sliding sleeve (13). A rotating joint one (4) is rotatably connected to the outer wall of the sliding sleeve (13). An L-shaped plate (19) is fixedly connected to the other end of the rotating joint one (4). A wheel (5) is rotatably connected to the outer wall of the L-shaped plate (19). A motor (7) is fixedly connected to the rear right end of the outer shell one (1).

2. The landing gear mechanism for a space shuttle model according to claim 1, characterized in that: A tripod (16) is fixedly connected to the upper middle part of the rear side of the outer wall of the transmission link (3), and a support rod (15) is fixedly connected to the top of the tripod (16).

3. The landing gear mechanism for a space shuttle model according to claim 1, characterized in that: The upper middle part of the front side of the outer wall of the transmission link (3) is fixedly connected to the tripod two (18).

4. The landing gear mechanism for a space shuttle model according to claim 3, characterized in that: The top of the tripod 2 (18) is fixedly connected to the support rod 2 (17).

5. The landing gear mechanism for a space shuttle model according to claim 1, characterized in that: A second outer shell (2) is fixedly connected between the inner sides of the two outer shells (1).

6. The landing gear mechanism for a space shuttle model according to claim 1, characterized in that: The bottom of the transmission link (3) is rotatably connected to the top of the L-shaped plate (19).

7. The landing gear mechanism for a space shuttle model according to claim 4, characterized in that: The other ends of the second support rod (17) and the first support rod (15) are fixedly connected to the outer wall of the corresponding outer shell (1).

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