Folding undercarriage of unmanned aerial vehicle

Abstract

The folding undercarriage comprises a plurality of supporting rods, each supporting rod comprises an upper rod, a lower rod, a folding structure and a protection structure, the top end of each upper rod is used for being connected with an unmanned aerial vehicle body, the bottom end of each upper rod is connected with one end of the corresponding lower rod through the corresponding folding structure, and the folding structures are controlled to be in a folded or unfolded state; the bottom end of the upper rod and one end of the lower rod can be correspondingly locked and connected or separated; the protection structure is arranged on the folding structure and can lock the folding state of the folding structure; in addition, reinforcing rods are fixedly connected to the folding structures, and one ends of the reinforcing rods in the supporting rods are fixedly connected together. The folding landing gear of the unmanned aerial vehicle is simple and reasonable in structure, has folding and unfolding use states, is firm and stable in structure when being unfolded for use, and is high in use safety.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a folding landing gear for UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and onboard program control devices. Compared with manned aircraft, UAVs have advantages such as small size, low cost, ease of use, and wide range of applications, making them popular in various fields.

[0003] As is well known, the landing gear of a drone is usually installed at the bottom of the fuselage, serving a supporting and protective function when the drone lands. To facilitate the storage and retrieval of drones, the landing gear is typically designed as a foldable structure. Specifically, the landing gear support rod is divided into two sections, connected by a folding mechanism that allows for both folding and unfolding. That is, by manipulating the folding mechanism to either fold or unfold, the two sections can be locked together or separated accordingly. However, the locking effect of existing folding mechanisms on the market is generally weak, making it easy for them to be accidentally opened, thus posing a significant safety hazard during drone landing gear use.

[0004] In view of the above, this utility model is hereby proposed. Summary of the Invention

[0005] To overcome the above-mentioned defects, this utility model provides a folding landing gear for unmanned aerial vehicles. On the one hand, it has both folded and unfolded usage states, and the structure is reliable and stable when unfolded, ensuring high safety. On the other hand, its structure is simple and reasonable, and it is easy and labor-saving to operate.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a folding landing gear for a drone, comprising multiple support rods, each support rod including an upper rod, a lower rod, a folding structure, and a protective structure. The top end of the upper rod is connected to the drone fuselage, and the bottom end of the upper rod is connected to one end of the lower rod through the folding structure. By controlling the folding structure to be in a folded or open state, the bottom end of the upper rod and one end of the lower rod can be locked together or separated accordingly. The protective structure is disposed on the folding structure and can lock the folding state of the folding structure. In addition, a reinforcing rod is fixedly connected to the folding structure, and one end of the reinforcing rod among the multiple support rods is fixedly connected together.

[0007] As a further improvement of this utility model, the folding structure includes a first base fixedly connected to the bottom end of the upper rod, a second base fixedly connected to one end of the lower rod and rotatably connected to the first base, an elastic buckle rotatably connected to the second base, and a slot provided on the first base that can be engaged or disengaged from the elastic buckle.

[0008] As a further improvement of this utility model, the elastic buckle includes a main body, a hook portion integrally disposed on the upper end of the main body, and a spring connected to the lower part of the main body. The main body is rotatably connected to the second seat through a rotating shaft A, and the main body is also elastically connected to the second seat through the spring. When an external force is applied to press the lower part of the main body, it can cause the main body to rotate in the forward direction and at the same time cause the hook portion to separate from the slot. When the external force is removed, the main body can rotate in the reverse direction under the elastic restoring force of the spring, and can also cause the hook portion to snap into place with the slot.

[0009] As a further improvement of this utility model, it is defined that: the rear side of the first seat is rotatably connected to the rear side of the second seat;

[0010] Correspondingly, the first seat has a recessed groove on its front side; the main body is rotatably connected to the front side of the second seat via the rotating shaft A, and the front side of the second seat has a recessed groove for receiving the spring.

[0011] As a further improvement of this utility model, the front side of the first base is further recessed with a groove A for receiving the upper part of the main body, and the front side of the second base is further recessed with a groove B for receiving the lower part of the main body; the slot is integrally formed in the groove A, and the hole is integrally formed in the groove B.

[0012] As a further improvement of this utility model, the elastic buckle also includes a connecting part A integrally provided on the front side of the main body and two connecting parts B respectively fixedly provided on the left and right sides of the groove B. The connecting part A and the two connecting parts B are respectively provided with pivot holes for the rotating shaft A to pass through.

[0013] As a further improvement of this utility model, when the folding structure is in the folded state, the first seat and the second seat are aligned and engaged, and the hook part is connected to the slot in a snap-fit ​​manner.

[0014] The protective structure includes a magnetic attractor A and a magnetically attracted component. The magnetic attractor A is disposed on the second base, and the magnetically attracted component is disposed on the first base. The magnetic attractor A attracts the magnetically attracted component, which can fix the snap-fit ​​connection between the hook and the slot.

[0015] As a further improvement of this utility model, the magnetic suction element A is configured as two and is respectively fixed on the left and right sides of the groove B;

[0016] The magnetically attracted component is an irregular body composed of two L-shaped segments A and a strip-shaped segment B integrally connected between the two segments A. The magnetically attracted component can be tilted and slidably disposed on the front side of the first base through the two segments A, so that the magnetically attracted component can move closer to or away from the magnetically attracted component A. The segment B can be magnetically connected with the two magnetically attracted components A, and at the same time, it can press against the upper part of the main body to press and fix the snap-fit ​​connection between the hook and the slot.

[0017] As a further improvement of this utility model, a sliding groove extending downwards is provided on the front side of the first base body and on the left and right sides of the groove A respectively, and the two sections A are respectively slidably disposed in the two sliding grooves; in addition, a magnetic suction member B is provided on the upper side of the two sliding grooves respectively for magnetically connecting and cooperating with the section A, so as to magnetically suction the part.

[0018] As a further improvement of this utility model, the support rods are configured in multiple symmetrical arrangements, and a support block is provided at the center of the area enclosed by the multiple support rods; the reinforcing rod is fixed between the first base and the support block corresponding to it.

[0019] The beneficial effects of this utility model are as follows: Compared with the prior art, ① this utility model, in addition to configuring a folding structure with folding and unfolding functions, also features a protective structure capable of locking and unlocking the folded state of the folding structure. This makes the folded state (i.e., the unfolded use state of the landing gear) more reliable and stable, effectively preventing the folding structure from being accidentally opened due to accidental activation, thus greatly improving the safety of the UAV during use. ② This utility model also includes a reinforcing rod, which effectively enhances the overall stability of the landing gear structure in the unfolded use state. ③ The structure of the UAV folding landing gear of this utility model is simple and reasonable, and its operation is convenient and labor-saving. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the usage state of the UAV with its folding landing gear in the unfolded state.

[0021] Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the image;

[0022] Figure 3 for Figure 2 A partial structural diagram of the folded structure shown in the figure;

[0023] Figure 4 for Figure 3 A partial structural diagram of the folded structure shown in the figure;

[0024] Figure 5 for Figure 2 A partial structural diagram of the elastic buckle shown;

[0025] Figure 6 for Figure 2 The diagram shows the structure of the protective structure shown.

[0026] Referring to the accompanying drawings, the following explanations are provided:

[0027] 1. Support rod; 10. Upper rod; 11. Lower rod; 12. Folding structure; 121. First seat; 1210. Slot A; 1211. Slide groove; 1212. Magnetic suction part B; 122. Second seat; 1220. Hole and slot; 1221. Slot B; 123. Elastic buckle; 1230. Main body; 1231. Hook part; 1232. Spring; 1233. Connecting part A; 1234. Connecting part B; 1235. Pivot hole; 1236. Rotating shaft A; 124. Slot; 13. Protective structure; 130. Magnetic suction part A; 131. Magnetized part; 1310. Section A; 1311. Section B; 14. Reinforcing rod; 2. Support block; 3. Adjustable feet. Detailed Implementation

[0028] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] Please see the appendix Figure 1 To be continued Figure 6As shown, this embodiment 1 provides a folding landing gear for a drone, which includes multiple support rods 1. Each support rod 1 includes an upper rod 10, a lower rod 11, a folding structure 12, and a protective structure 13. The top end of the upper rod 10 is connected to the drone fuselage, and the bottom end of the upper rod 10 is connected to one end of the lower rod 11 through the folding structure 12. By controlling the folding structure 12 to be in a folded or open state, the bottom end of the upper rod 10 can be locked or separated from one end of the lower rod 11. The protective structure 13 is disposed on the folding structure 12 and can lock the folded state of the folding structure 12. In addition, a reinforcing rod 14 is fixedly connected to the folding structure 12, and one end of the reinforcing rod 14 of the multiple support rods 1 is fixedly connected together. Understandably, ① when the drone needs to be used, first operate the folding structure 12 to fold, so that the bottom end of the upper rod 10 is locked to one end of the lower rod 11, at which point the landing gear is in the deployed state; then operate the protective structure 13 to lock the folding state of the folding structure 12, so that the folding state of the folding structure 12 (i.e., the deployed state of the landing gear) is more secure and stable, effectively preventing the folding structure 12 from being opened due to accidental activation, greatly improving the safety of drone use. ② when the drone is not needed, first operate the protective structure 13 to unlock the folding state of the folding structure 12, and then operate the folding structure 12 to open, so that the bottom end of the upper rod 10 is separated from one end of the lower rod 11, thereby reducing the size of the drone and making it easier to store and retrieve it. Furthermore, by using multiple reinforcing rods 14 to partially fix and connect multiple support rods 1 together, the overall stability of the landing gear structure in the deployed state can be effectively improved.

[0031] The following is a detailed description of the specific structure of the folding landing gear of the UAV described in this embodiment.

[0032] First, regarding the folding structure 12.

[0033] In this embodiment, the preferred implementation structure of the folding structure 12 is as follows: Please refer to the appendix. Figure 2 To be continued Figure 5As shown, the folding structure 12 includes a first seat 121, a second seat 122, an elastic buckle 123, and a slot 124. The first seat 121 is fixedly connected to the bottom end of the upper rod 10, and the second seat 122 is fixedly connected to one end of the lower rod 11 and rotatably connected to the first seat 121. The elastic buckle 123 includes a main body 1230, a hook portion 1231 integrally provided on the upper end of the main body 1230, and a spring 1232 connected to the lower part of the main body 1230. The main body 1230 is rotatably connected to the second seat 122 through a pivot A1236, and the main body 1230 is also elastically connected to the second seat 122 through the spring 1232. The slot 124 is provided on the first seat 121 and can be engaged or disengaged from the elastic buckle 123. Understandably, the working principle of the folding structure 12 is as follows: ① When it is necessary to separate the bottom end of the upper rod 10 from one end of the lower rod 11, an external force is first applied to press the lower part of the main body 1230, which can cause the main body 1230 to rotate forward and at the same time cause the hook part 1231 to separate from the slot 124. At this time, the folding structure 12 is in a preliminary open state. Then, by applying an external force to make the second seat 122 rotate away from the first seat 121, the folding structure 12 is in a fully open state, which also causes the bottom end of the upper rod 10 to separate from one end of the lower rod 11. Note: After the preliminary open state of the folding structure 12 is completed, the external force applied to the main body 1230 can be removed. At this time, the main body 1230 can rotate in the opposite direction under the elastic restoring force of the spring 1232 until it returns to its original position. ② When it is necessary to lock the bottom end of the upper rod 10 to one end of the lower rod 11, firstly, apply an external force to make the second seat 122 rotate closer to the first seat 121, but the two are not in contact. Then, apply an external force to press the lower part of the main body 1230, so that the main body 1230 rotates in the forward direction to avoid the movement of the second seat 122 approaching and contacting the first seat 121. Then, apply an external force to make the second seat 122 contact the first seat 121, and then remove the external force applied to the main body 1230. Correspondingly, the main body 1230 can rotate in the opposite direction under the elastic restoring force of the spring 1232, and at the same time drive the hook part 1231 to be connected with the slot 124. At that time, the folding structure 12 is in the folded state, and at the same time, the bottom end of the upper rod 10 and one end of the lower rod 11 are locked together.

[0034] Furthermore, regarding the fixed connection method between the first seat 121 and the bottom end of the upper rod 10, and the fixed connection method between the second seat 122 and one end of the lower rod 11, welding or screw fastening can be used. These are conventional technical means, so they will not be described in detail here.

[0035] Regarding the rotational connection between the first seat 121 and the second seat 122, this embodiment adopts the conventional technical means in the existing folding device structure, and is therefore briefly described as follows: the rear side of the first seat 121 is rotatably connected to the rear side of the second seat 122 through a rotating shaft B.

[0036] Based on the above orientation definition, the slot 124 is recessed on the front side of the first seat 121; the main body 1230 is rotatably connected to the front side of the second seat 122 via the rotating shaft A1236, and the front side of the second seat 122 is also recessed with a slot 1220 for receiving the spring 1232; see attached drawing for details. Figure 4 As shown.

[0037] For further details, please refer to the appendix. Figure 4 As shown, to minimize the risk of accidental activation of the elastic buckle 123 and to enhance the product's aesthetics, this embodiment also features a recessed groove A1210 on the front side of the first base 121 to accommodate the upper part of the main body 1230, and a recessed groove B1221 on the front side of the second base 122 to accommodate the lower part of the main body 1230. Simultaneously, the slot 124 is integrally formed in the recessed groove A1210, and the hole 1220 is integrally formed in the recessed groove B1221. Furthermore, in this embodiment, the main body 1230 is designed as a rectangular plate structure, and correspondingly, both the recessed groove A1210 and the recessed groove B1221 adopt a rectangular groove structure.

[0038] For further details, please refer to the appendix. Figure 3 To be continued Figure 5 As shown, the main body 1230 is rotatably connected to the second seat 122 via the pivot A1236. In this embodiment, the preferred specific implementation structure is as follows: the elastic buckle 123 further includes a connecting part A1233 integrally provided on the front side of the main body 1230 and two connecting parts B1234 respectively fixedly provided on the left and right sides of the groove B1221. The connecting part A1233 and the two connecting parts B1234 are respectively provided with pivot holes 1235 for the pivot A1236 to pass through.

[0039] Next, regarding the protective structure 13.

[0040] As can be seen from the working principle of the folding structure 12 described above, when the folding structure 12 is in the folded state, the first seat 121 and the second seat 122 are aligned, and the hook portion 1231 is snapped into place with the slot 124. Therefore, in this embodiment, the protective structure 13 locks the folded state of the folding structure 12, and can be further designed such that the protective structure 13 locks the snap-fit ​​connection between the hook portion 1231 and the slot 124.

[0041] Based on the aforementioned functions of the protective structure 13, in this embodiment, the protective structure 13 preferably adopts the following implementation structure: Please refer to the appendix. Figure 2 and attached Figure 6 As shown, the protective structure 13 includes a magnetic attractor A130 (such as a magnet) and a magnetically attracted component 131 (made of a magnetically attracted metal material). The magnetic attractor A130 is disposed on the second base 122, and the magnetically attracted component 131 is disposed on the first base 121. The magnetic attractor A130 attracts the magnetically attracted component 131, which can fix the snap-fit ​​connection between the hook portion 1231 and the slot 124.

[0042] For further details, please refer to the appendix. Figure 2 and attached Figure 6 As shown, according to product design requirements, the magnetic suction component A130 is configured as two and fixedly disposed on the left and right sides of the slot B1221 respectively; the magnetically attracted component 131 is an irregular body composed of two L-shaped segments A1310 and a strip-shaped segment B1311 integrally connected between the two segments A1310. The magnetically attracted component 131 can be tilted and slidably disposed on the front side of the first base 121 through the two segments A1310, so that the magnetically attracted component 131 can move closer to or away from the magnetic suction component A130; the segment B1311 can be magnetically connected with the two magnetic suction components A130 while also pressing against the upper part of the main body 1230, so as to press and fix the snap-fit ​​connection between the hook part 1231 and the slot 124. Understandably, when the folding structure 12 is in the folded state, an external force can be applied to bring the magnetically attracted part 131 close to the magnetically attracted part A130 and magnetically connect it with the magnetically attracted part A130, thereby pressing and fixing the snap-fit ​​connection between the hook part 1231 and the slot 124. That is, at this time, the protective structure 13 is in the locked state. When it is necessary to open the folding structure 12, an external force is first applied to move the magnetically attracted part 131 away from the magnetically attracted part A130 to release the pressing and locking of the folding structure 12, and then the opening action of the folding structure 12 is performed (see the above for details).

[0043] Furthermore, the specific implementation structure of this embodiment, which enables the magnetically attracted component 131 to be tilted and slidably disposed on the front side of the first base 121 via the two segments A1310, is as follows: Please refer to the appendix. Figure 2 As shown, on the front side of the first seat 121 and on the left and right sides of the groove A1210 respectively, there are sliding grooves 1211 extending downward from top to bottom, and the two sections A1310 are respectively slidably disposed in the two sliding grooves 1211.

[0044] In addition, this embodiment also provides magnetic suction components B1212 (such as magnet blocks) on the upper side of the two slide grooves 1211 for magnetically connecting and cooperating with the section A1310, so as to fix and limit the magnetically suctioned component 131 in the unlocked state.

[0045] Next, regarding other structures.

[0046] Please continue to refer to the appendix. Figure 1 As shown, in this embodiment, the support rods 1 are configured as a plurality of rods and arranged symmetrically, and a support block 2 is also provided at the center of the area enclosed by the plurality of support rods 1; correspondingly, each reinforcing rod 14 is fixed between the first seat 121 and the support block 2.

[0047] In addition, an adjusting foot 3 is installed on the end of each lower rod 11 that is away from the upper rod 10.

[0048] Finally, the prefixes "first," "second," etc. (such as first seat, second seat, etc.) in the component names in this utility model patent specification, and the suffixes "A," "B," etc. (such as groove A, groove B, etc.) in the component names are only for clarity of description and are not intended to limit the scope of implementation of this utility model patent.

[0049] In summary, the folding landing gear of the UAV described in this utility model has a simple and reasonable structure, and can be used in both folded and unfolded states. When unfolded, the structure is reliable, stable, and highly safe to use.

[0050] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A folding landing gear for an unmanned aerial vehicle (UAV), comprising multiple support rods (1), characterized in that: The support rod (1) includes an upper rod (10), a lower rod (11), a folding structure (12), and a protective structure (13). The top end of the upper rod (10) is used to connect to the fuselage of the drone. The bottom end of the upper rod (10) is connected to one end of the lower rod (11) through the folding structure (12). By controlling the folding structure (12) to be in a folded or open state, the bottom end of the upper rod (10) and one end of the lower rod (11) can be locked or separated accordingly. The protective structure (13) is set on the folding structure (12) and can lock the folding state of the folding structure (12). In addition, a reinforcing rod (14) is fixedly connected to the folding structure (12), and one end of the reinforcing rod (14) of the multiple support rods (1) is fixedly connected together.

2. The folding landing gear for a drone according to claim 1, characterized in that: The folding structure (12) includes a first seat (121) fixedly connected to the bottom end of the upper rod (10), a second seat (122) fixedly connected to one end of the lower rod (11) and rotatably connected to the first seat (121), an elastic buckle (123) rotatably connected to the second seat (122), and a slot (124) provided on the first seat (121) and capable of being snapped together or separated from the elastic buckle (123).

3. The folding landing gear for a drone according to claim 2, characterized in that: The elastic buckle (123) includes a main body (1230), a hook portion (1231) integrally formed on the upper end of the main body (1230), and a spring (1232) connected to the lower part of the main body (1230). The main body (1230) is rotatably connected to the second seat (122) via a pivot A, and the main body (1230) is also elastically connected to the second seat (122) via the spring (1232). When applied... When an external force is applied to the lower part of the main body (1230), the main body (1230) can rotate in the forward direction and the hook part (1231) can be separated from the slot (124). When the external force is removed, the main body (1230) can rotate in the reverse direction under the elastic restoring force of the spring (1232) and the hook part (1231) can be snapped together with the slot (124).

4. The folding landing gear for a drone according to claim 3, characterized in that: the rear side of the first base (121) is rotatably connected to the rear side of the second base (122); Correspondingly, the first seat (121) has a recessed groove (124) on its front side; the main body (1230) is rotatably connected to the front side of the second seat (122) via the rotating shaft A, and the front side of the second seat (122) has a recessed groove (1220) for receiving the spring (1232).

5. The folding landing gear for a drone according to claim 4, characterized in that: The front side of the first seat (121) is also recessed with a groove A (1210) for receiving the upper part of the main body (1230), and the front side of the second seat (122) is also recessed with a groove B (1221) for receiving the lower part of the main body (1230); the slot (124) is integrally formed in the groove A (1210), and the hole (1220) is integrally formed in the groove B (1221).

6. The folding landing gear for a drone according to claim 5, characterized in that: The elastic buckle (123) also includes a connecting part A (1233) integrally provided on the front side of the main body (1230) and two connecting parts B (1234) respectively fixedly provided on the left and right sides of the groove B (1221). The connecting part A (1233) and the two connecting parts B (1234) are respectively provided with pivot holes (1235) for the rotating shaft A to pass through.

7. The folding landing gear for a drone according to claim 5, characterized in that: When the folding structure (12) is in the folded state, the first seat (121) and the second seat (122) are engaged, and the hook (1231) is snapped into the slot (124). The protective structure (13) includes a magnetic attractor A (130) and a magnetically attracted component (131). The magnetic attractor A (130) is disposed on the second base (122), and the magnetically attracted component (131) is disposed on the first base (121). The magnetic attractor A (130) attracts the magnetically attracted component (131), which can fix the snap-fit ​​connection between the hook part (1231) and the slot (124).

8. The folding landing gear for a drone according to claim 7, characterized in that: The magnetic suction element A (130) is configured in two parts and is fixed to the left and right sides of the groove B (1221) respectively; The magnetically attracted component (131) is an irregular body composed of two L-shaped segments A (1310) and a strip-shaped segment B (1311) integrally connected between the two segments A (1310). The magnetically attracted component (131) can be tilted and slidably disposed on the front side of the first base (121) through the two segments A (1310), so that the magnetically attracted component (131) can move closer to or away from the magnetically attracted component A (130). The segment B (1311) can be magnetically connected with the two magnetically attracted components A (130) and also press against the upper part of the main body (1230) to press and fix the snap-fit ​​connection between the hook part (1231) and the slot (124).

9. The folding landing gear for a drone according to claim 8, characterized in that: On the front side of the first seat (121) and on the left and right sides of the groove A (1210) respectively, there are sliding grooves (1211) extending downward from top to bottom, and the two sections A (1310) are respectively slidably disposed in the two sliding grooves (1211); In addition, magnetic suction members B (1212) are provided next to the upper part of the two slides (1211) for magnetic connection with the section A (1310) to magnetically suction the magnetically suctioned member (131).

10. The folding landing gear for a drone according to claim 2, characterized in that: The support rods (1) are configured in multiple ways and arranged symmetrically, and a support block (2) is also provided at the center of the area enclosed by the multiple support rods (1); The reinforcing rod (14) is fixed between the first seat (121) and the support block (2) corresponding to it.

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