Unmanned aerial vehicle landing damping structure

Abstract

The utility model discloses an unmanned plane take -off and landing damping structure belongs to unmanned plane technical field, including unmanned plane frame, the unmanned plane frame lower extreme is installed with the connecting frame, and the connecting frame bottom is fixed with the fixed link, and the fixed link lower extreme is connected with the movable plate, and the fixed link lower extreme outside sleeve has the hollow frame, and is provided with the buffer assembly between the fixed link and the hollow frame, the utility model sets up buffer assembly, makes the hollow frame with the fixed link between installation damping rod, its cooperation with support spring can play the supplementary buffering effect, and the arc spring piece and the buffer rubber pad change shape, and the produced elasticity can further play the buffering damping effect, the utility model sets up the protection component, makes the buffer spring outside installation telescopic protection cover sleeve, and it carries out synchronous telescopic deformation with the buffer spring, can play good shielding protection effect, thereby avoids the ground dust to lift when causing the pollution to spring, and the waterproof layer makes it more convenient to clean.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a vibration reduction structure for UAV take-off and landing. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously, either completely or intermittently, by an onboard computer. Their successful development and battlefield application have ushered in a new chapter of "non-contact warfare" dominated by long-range attack-type intelligent and information-based weapons.

[0003] When a drone lands, the lack of a connecting support structure between the hollow frame and the fixed rod means that a support and cushioning structure needs to be installed inside. When the drone lands, it easily stirs up dust on the ground, which can contaminate the cushioning springs and is inconvenient to clean. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a vibration damping structure for unmanned aerial vehicle (UAV) takeoff and landing, which features good buffering and protective effects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drone take-off and landing vibration reduction structure, including a drone frame, a connecting frame installed at the lower end of the drone frame, a fixed rod fixed at the bottom of the connecting frame, a movable plate connected to the lower end of the fixed rod, a hollow frame sleeved on the outer side of the lower end of the fixed rod, a buffer assembly provided between the fixed rod and the hollow frame, a guide rod fixed at the lower end of the connecting frame and on one side of the fixed rod, a buffer spring sleeved on the surface of the guide rod, a protective assembly installed on the outer side of the buffer spring, a compression sleeve slidably connected to the surface of the guide rod and at the lower end of the buffer spring, and a transmission rod connected between the hollow frame and the compression sleeve; The buffer assembly includes a damping rod, which is installed inside the hollow frame. A support spring is sleeved on the surface of the damping rod, and a support plate is fixed to the upper end of the damping rod.

[0006] Preferably, the upper end of the support plate is provided with an auxiliary structure, and the support plate and the auxiliary structure are installed together by fixing bolts.

[0007] Preferably, the auxiliary structure includes a connecting plate, the supporting plate is mounted on the surface of the connecting plate, and an arc-shaped spring is provided at the upper end of the connecting plate.

[0008] Preferably, the upper surface of the arc-shaped spring is provided with a buffer rubber pad, and the arc-shaped spring and the buffer rubber pad are connected by an adhesive method.

[0009] Preferably, the protective component includes a lower connecting ring, the surface of the extrusion sleeve is fitted with the lower connecting ring, the surface of the connecting frame is fitted with an upper connecting ring, and a telescopic protective cover is provided between the lower connecting ring and the upper connecting ring and located outside the buffer spring.

[0010] Preferably, the outer surface of the telescopic protective cover is provided with an adhesive layer, and the outer surface of the adhesive layer is provided with a waterproof layer.

[0011] Preferably, a vent pipe is inserted into one side of the inside of the extrusion sleeve, and a dust cover is connected to one end of the vent pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is equipped with a buffer component, in which a damping rod is installed between the hollow frame and the fixed rod. The damping rod, in conjunction with the support spring, can play an auxiliary buffering role. Furthermore, the deformation of the arc-shaped spring sheet and the buffer rubber pad generates elastic force, which can further play a buffering and vibration reduction role.

[0013] 2. This utility model is equipped with a protective component, in which a telescopic protective cover is installed on the outside of the buffer spring. The cover expands and contracts synchronously with the buffer spring, which can play a good role in shielding and protecting the spring, thereby preventing dust from the ground from contaminating the spring. The waterproof layer also makes it easy to clean. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a perspective view of the buffer component of this utility model; Figure 4 This is a perspective view of the protective component of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A; In the diagram: 1. UAV frame; 2. Connecting frame; 3. Fixing rod; 4. Hollow frame; 5. Transmission rod; 6. Extrusion sleeve; 7. Protective components; 71. Telescopic protective cover; 72. Lower connecting ring; 73. Vent pipe; 74. Upper connecting ring; 75. Dust cover; 76. Adhesive layer; 77. Waterproof layer; 8. Movable plate; 9. Buffer components; 91. Damping rod; 92. Support spring; 93. Support plate; 94. Auxiliary structure; 941. Connecting plate; 942. Arc-shaped spring; 943. Buffer rubber pad; 95. Fixing bolt; 10. Buffer spring; 11. Guide rod. Detailed Implementation

[0015] 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. Example 1

[0016] Please see Figure 1-5 The present invention provides the following technical solution: a drone take-off and landing vibration reduction structure, including a drone frame 1, a connecting frame 2 installed at the lower end of the drone frame 1, a fixed rod 3 fixed at the bottom of the connecting frame 2, a movable plate 8 connected at the lower end of the fixed rod 3, a hollow frame 4 sleeved on the outer side of the lower end of the fixed rod 3, a buffer component 9 provided between the fixed rod 3 and the hollow frame 4, a guide rod 11 fixed at the lower end of the connecting frame 2 and on one side of the fixed rod 3, a buffer spring 10 sleeved on the surface of the guide rod 11, a protective component 7 installed on the outer side of the buffer spring 10, a compression sleeve 6 slidably connected on the surface of the guide rod 11 and at the lower end of the buffer spring 10, and a transmission rod 5 connected between the hollow frame 4 and the compression sleeve 6; The buffer assembly 9 includes a damping rod 91, which is installed inside the hollow frame 4. A support spring 92 is sleeved on the surface of the damping rod 91, and a support plate 93 is fixed to the upper end of the damping rod 91.

[0017] Specifically, an auxiliary structure 94 is provided on the upper end of the support plate 93. The support plate 93 and the auxiliary structure 94 are installed together by fixing bolts 95. By adopting the above technical solution, the auxiliary structure 94 is installed on the upper end of the support plate 93 by fixing bolts 95, which can play an auxiliary buffering role.

[0018] Specifically, the auxiliary structure 94 includes a connecting plate 941. The connecting plate 941 is mounted on the surface of the support plate 93. An arc-shaped spring piece 942 is provided at the upper end of the connecting plate 941. By adopting the above technical solution, the connecting plate 941 installs the arc-shaped spring piece 942, which can play a buffering role when the arc-shaped spring piece 942 deforms.

[0019] Specifically, a buffer rubber pad 943 is provided on the upper surface of the arc-shaped spring 942. The arc-shaped spring 942 and the buffer rubber pad 943 are connected by an adhesive method. By adopting the above technical solution, the deformation of the buffer rubber pad 943 can further play a role in buffering and vibration reduction.

[0020] In this embodiment, after the drone frame 1 moves and lands, the connecting frame 2 and the hollow frame 4 land synchronously and adhere to the ground. The ground causes a counter-vibration impact on the hollow frame 4. After the hollow frame 4 moves vertically on the surface of the fixed rod 3, it provides a corresponding vertical pushing force to the compression sleeve 6 under the transmission action of the transmission rod 5. This allows the compression sleeve 6 to move vertically synchronously outside the guide rod 11 while compressing the buffer spring 10, causing it to deform and thus buffering and eliminating external vibration. This prevents external vibration from directly affecting the surface of the connecting frame 2 and the drone frame 1, and provides vibration reduction and protection for the drone frame 1. At the same time, as the buffer spring 10 returns to its original position, it drives the movable plate 8 to move synchronously inside the hollow frame 4. During the recovery movement, the damping effect of the damping pad can eliminate the counter-vibration force of the buffer spring 10, further improving the vibration protection quality of the UAV frame 1 and the connecting frame 2. The damping rod 91 in the hollow frame 4 works with the support spring 92 to provide auxiliary buffering when the hollow frame 4 moves, and the support plate 93 can connect and support the fixed rod 3, making the structure more stable. The upper end of the support plate 93 is equipped with the auxiliary structure 94 by the fixing bolt 95, which can provide auxiliary buffering. The connecting plate 941 is equipped with the arc-shaped spring 942, which can provide buffering when the arc-shaped spring 942 deforms. The deformation of the buffer rubber pad 943 can further provide buffering and vibration reduction. Example 2

[0021] The difference between this embodiment and embodiment 1 is that the protective component 7 includes a lower connecting ring 72, the surface of the compression sleeve 6 is fitted with the lower connecting ring 72, the surface of the connecting frame 2 is fitted with an upper connecting ring 74, and a telescopic protective cover 71 is provided between the lower connecting ring 72 and the upper connecting ring 74 and located outside the buffer spring 10. By adopting the above technical solution, the telescopic protective cover 71 is installed through the upper connecting ring 74 and the lower connecting ring 72. Its folding and telescopic movement can protect the buffer spring 10 and prevent the buffer spring 10 from being contaminated by dust.

[0022] Specifically, the outer surface of the telescopic protective cover 71 is provided with an adhesive layer 76, and the outer surface of the adhesive layer 76 is provided with a waterproof layer 77. By adopting the above technical solution, the outer surface of the telescopic protective cover 71 is bonded with a waterproof layer 77 through the adhesive layer 76, which can achieve a moisture-proof effect and facilitate the wiping and cleaning by the staff.

[0023] Specifically, a vent pipe 73 is inserted into one side of the inside of the extrusion sleeve 6, and a dust cover 75 is connected to one end of the vent pipe 73. By adopting the above technical solution, the vent pipe 73 facilitates ventilation when the telescopic protective cover 71 is deformed, and the dust cover 75 can filter the air to make the gas entering the protective cover clean.

[0024] In this embodiment, the telescopic protective cover 71 is installed through the upper connecting ring 74 and the lower connecting ring 72. Its folding and telescopic movement can protect the buffer spring 10 and prevent the buffer spring 10 from being contaminated by dust. The outer surface of the telescopic protective cover 71 is covered with a waterproof layer 77 by an adhesive layer 76, which can achieve a moisture-proof effect and facilitate the wiping and cleaning by the staff. The vent pipe 73 facilitates ventilation when the telescopic protective cover 71 is deformed. The dust cover 75 can filter the air to make the gas entering the protective cover clean.

[0025] The working principle and usage process of this utility model are as follows: First, after the drone frame 1 moves and lands, the connecting frame 2 and the hollow frame 4 land synchronously and adhere to the ground. The ground causes a counter-vibration impact on the hollow frame 4. After the hollow frame 4 moves vertically on the surface of the fixed rod 3, it provides a corresponding vertical pushing force to the extrusion sleeve 6 under the transmission action of the transmission rod 5. This allows the extrusion sleeve 6 to move vertically synchronously on the outside of the guide rod 11, while simultaneously extruding and deforming the buffer spring 10, thus buffering and eliminating external vibration force. This prevents external vibration force from directly affecting the surface of the connecting frame 2 and the drone frame 1, and provides vibration reduction and protection for the drone frame 1. At the same time, as the buffer spring 10 returns to its original state, it drives the movable plate 8 to move synchronously. When the hollow frame 4 moves back to its original position, the damping effect of the damping pad can dampen and eliminate the counter-vibration force of the buffer spring 10, further improving the vibration protection quality of the UAV frame 1 and the connecting frame 2. The damping rod 91 inside the hollow frame 4 works with the support spring 92 to provide auxiliary buffering when the hollow frame 4 moves, and the support plate 93 can connect and support the fixed rod 3, making the structure more stable. The upper end of the support plate 93 is equipped with the auxiliary structure 94 by the fixing bolt 95, which can provide auxiliary buffering. The connecting plate 941 is equipped with the arc-shaped spring 942, which can provide buffering when the arc-shaped spring 942 deforms. The deformation of the buffer rubber pad 943 can further provide buffering and vibration reduction.

[0026] Subsequently, the telescopic protective cover 71 is installed through the upper connecting ring 74 and the lower connecting ring 72. Its folding and telescopic function can protect the buffer spring 10 and prevent the buffer spring 10 from being contaminated by dust. The outer surface of the telescopic protective cover 71 is covered with a waterproof layer 77 through an adhesive layer 76, which can achieve a moisture-proof effect and facilitate the wiping and cleaning by the staff. The vent pipe 73 facilitates ventilation when the telescopic protective cover 71 deforms, and the dust cover 75 can filter the air to keep the gas entering the protective cover clean.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration damping structure for takeoff and landing of a UAV, comprising a UAV frame (1), characterized in that: The lower end of the UAV frame (1) is equipped with a connecting frame (2), a fixed rod (3) is fixed at the bottom of the connecting frame (2), a movable plate (8) is connected to the lower end of the fixed rod (3), a hollow frame (4) is sleeved on the outer side of the lower end of the fixed rod (3), a buffer assembly (9) is provided between the fixed rod (3) and the hollow frame (4), a guide rod (11) is fixed at the lower end of the connecting frame (2) and on one side of the fixed rod (3), a buffer spring (10) is sleeved on the surface of the guide rod (11), a protective assembly (7) is installed on the outer side of the buffer spring (10), a compression sleeve (6) is slidably connected on the surface of the guide rod (11) and at the lower end of the buffer spring (10), and a transmission rod (5) is connected between the hollow frame (4) and the compression sleeve (6). The buffer assembly (9) includes a damping rod (91), the damping rod (91) is installed inside the hollow frame (4), a support spring (92) is sleeved on the surface of the damping rod (91), and a support plate (93) is fixed at the upper end of the damping rod (91).

2. The unmanned aerial vehicle (UAV) takeoff and landing vibration reduction structure according to claim 1, characterized in that: An auxiliary structure (94) is provided on the upper end of the support plate (93), and the support plate (93) and the auxiliary structure (94) are installed together by fixing bolts (95).

3. The unmanned aerial vehicle (UAV) takeoff and landing vibration reduction structure according to claim 2, characterized in that: The auxiliary structure (94) includes a connecting plate (941), the supporting plate (93) is mounted on the surface of the connecting plate (941), and an arc-shaped spring piece (942) is provided at the upper end of the connecting plate (941).

4. The unmanned aerial vehicle (UAV) takeoff and landing vibration reduction structure according to claim 3, characterized in that: The upper surface of the arc-shaped spring (942) is provided with a buffer rubber pad (943), and the arc-shaped spring (942) and the buffer rubber pad (943) are connected by adhesive.

5. The unmanned aerial vehicle (UAV) takeoff and landing vibration reduction structure according to claim 1, characterized in that: The protective component (7) includes a lower connecting ring (72), the surface of the extrusion sleeve (6) is equipped with the lower connecting ring (72), the surface of the connecting frame (2) is equipped with an upper connecting ring (74), and a telescopic protective cover (71) is provided between the lower connecting ring (72) and the upper connecting ring (74) and located outside the buffer spring (10).

6. The unmanned aerial vehicle (UAV) takeoff and landing vibration reduction structure according to claim 5, characterized in that: The outer surface of the telescopic protective cover (71) is provided with an adhesive layer (76), and the outer surface of the adhesive layer (76) is provided with a waterproof layer (77).

7. The unmanned aerial vehicle (UAV) takeoff and landing vibration reduction structure according to claim 1, characterized in that: A vent pipe (73) is inserted into one side of the inside of the extrusion sleeve (6), and a dust cover (75) is connected to one end of the vent pipe (73).

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