Shock absorber of unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle shock absorber which comprises a connecting shaft, the lower end of the connecting shaft is fixedly connected with a buffering cushion, a plurality of supporting rods are hinged to the center of the lower end of the buffering cushion, the tail ends of the supporting rods are all hinged to a sliding sleeve, and the sliding sleeve is slidably connected to a guide rod. The upper end and the lower end of the guide rod are slidably connected to a damping mechanism, the damping mechanism is installed on a barrier plate, and the barrier plate is installed at the upper end of the interior of a damping cylinder. The utility model belongs to the technical field of unmanned aerial vehicles, can greatly weaken the impact force on the unmanned aerial vehicle main body when the unmanned aerial vehicle lands, and is favorable for maintaining the stable operation of precise instruments on the unmanned aerial vehicle main body.

Description

Technical Field

[0001] The utility model belongs to the technical field of drones, and particularly relates to a drone shock absorber. Background Technique

[0002] A drone is an unpiloted aircraft controlled by a radio remote control device and a self-prepared program control device. Its full name is an unmanned aerial vehicle, which is an aircraft that can fly without a pilot operating in the cabin. A drone usually includes a fuselage, a power system, a control system, a communication system, and a mission payload. Modern drones have a high degree of autonomous flight ability and can automatically navigate and perform tasks according to a preset route. Drones can carry various sensors, cameras, radars and other devices for performing various tasks such as reconnaissance, surveillance, and mapping. With the continuous development of technology, the application of drones in the civilian field is becoming more and more extensive. For example, it has extensive applications in fields such as aerial photography, agricultural plant protection, express delivery, disaster relief, wildlife observation, monitoring of infectious diseases, mapping, news reporting, power line inspection, disaster relief, and film and television shooting.

[0003] At present, most of the legs of drones do not have the performance of shock absorption and anti-vibration, which is not conducive to protecting the safety of the precision instrument parts on the drone body, especially in the application level of large drones. Therefore, a drone shock absorber is proposed. Content of the Utility Model

[0004] The utility model belongs to the technical field of drones, and can greatly weaken the impact force received by the drone body when the drone lands, which is beneficial to maintaining the stable operation of the precision instrument parts on the drone body.

[0005] The technical solution adopted by the utility model is specifically as follows:

[0006] A drone shock absorber includes a connecting shaft. A buffer pad is fixedly connected to the lower end of the connecting shaft. Several support rods are hinged at the center of the lower end of the buffer pad. The ends of several support rods are all hinged on a sliding sleeve. The sliding sleeve is slidably connected to a guide rod. The upper end and the lower end of the guide rod are both slidably connected to a shock absorption mechanism. The shock absorption mechanism is installed on a partition plate. The partition plate is installed at the upper end inside a shock absorption cylinder.

[0007] In a preferred solution, several groups of baffles distributed in an annular array are arranged on the partition plate. One end of the baffle is fixedly connected to the inner wall of the shock absorption cylinder with a protruding height higher than the partition plate. The other end of the baffle is fixedly connected to the outside of a surrounding plate. A chute is provided on the partition plate at the middle of each group of baffles.

[0008] In a preferred solution, the middle part of the surrounding plate is hollow to form a round hole, and the connecting shaft is adaptively connected in the round hole.

[0009] In a preferred embodiment, the shock-absorbing mechanism includes a first plywood and a second plywood, the bottom ends of which are fixedly connected to the top end of the barrier plate, a connecting block is provided at a sliding clamp at the center line of the top end of the first plywood and the second plywood, the bottom end of the connecting block is fixedly connected to the top end of the slide, the top end of the connecting block is fixedly connected to a toggle block, and the slide plate sliding clamp is provided in the middle of the inside of the first plywood and the second plywood.

[0010] In a preferred embodiment, a first spring is fixedly installed on one side of the skateboard, the other end of the first spring is fixedly connected to the periphery of the enclosure, a second spring is fixedly connected to the other side of the skateboard, the other end of the second spring is fixedly connected to the inner wall of the shock absorber cylinder, the bottom end of the skateboard is fixedly connected to the upper end of the guide rod, and a number of fixed rods distributed in a circular array are fixedly installed on the periphery of the enclosure and the inner wall of the shock absorber cylinder.

[0011] The technical effects achieved by this utility model are:

[0012] When the drone is landing, the bottom surface of the shock absorber cylinder first touches the ground. The inertia of the drone body continues to press down the connecting shaft, so that the bottom end of the connecting shaft transmits the inertial force to the buffer pad, and then the buffer pad transmits it to the support rod, and the support rod transmits it to the sliding sleeve, and then the sliding sleeve converts the longitudinal vibration force into a vibration force on the lateral guide rod, and finally the vibration force is transmitted to the shock absorber mechanism through the guide rod. The slide plate connected to the guide rod slides back and forth on the fixed rod in the shock absorber mechanism. During the reciprocating sliding process, the lateral vibration force is converted into elastic deformation of the first spring and the second spring. The lateral vibration force is partially reduced through the stretching and compression process of the two groups of springs. The shock absorber mechanism is provided with two groups in the upper and lower parts of the shock absorber cylinder, and each group of shock absorber mechanisms is provided with five. The shock absorber mechanism is fixedly connected to the inner wall of the shock absorber cylinder at the end deviating from the center of the shock absorber cylinder.

[0013] The utility model belongs to the technical field of unmanned aerial vehicles (UAVs), and can greatly reduce the impact force on the main body of the UAV when the UAV is landing, which is beneficial to maintaining the stable operation of precision instruments on the main body of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the main structure diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the shock-absorbing cylinder of the utility model;

[0016] Figure 3 It is a structural diagram of the internal body of the utility model;

[0017] Figure 4 It is a structural diagram of the shock absorbing mechanism of the utility model;

[0018] Figure 5 It is an exploded view of the shock absorbing mechanism of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the support rod of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Connecting shaft; 2. Shock-absorbing cylinder; 3. Shock-absorbing mechanism; 301. First joint plate; 302. Second joint plate; 303. Toggle block; 304. First spring; 305. Slide plate; 306. Connecting block; 307. Fixed rod; 308. Second spring; 4. Baffle; 5. Enclosure; 6. Blocking plate; 601. Slide groove; 7. Guide rod; 8. Buffer pad; 9. Slide sleeve; 10. Support rod. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figure 1 As shown, a shock absorber for an unmanned aerial vehicle includes a connecting shaft 1, the lower end of the connecting shaft 1 is fixedly connected to a buffer pad 8, a plurality of support rods 10 are hinged at the center of the lower end of the buffer pad 8, the ends of the plurality of support rods 10 are hinged on a sliding sleeve 9, the sliding sleeve 9 is slidably connected to a guide rod 7, the upper and lower ends of the guide rod 7 are slidably connected to a shock absorbing mechanism 3, the shock absorbing mechanism 3 is mounted on a blocking plate 6, and the blocking plate 6 is mounted on the inner upper end of the shock absorbing cylinder 2.

[0025] Specifically, when the drone is landing, the bottom surface of the shock absorber cylinder 2 first contacts the ground. The inertia of the drone body continuously presses down the connecting shaft 1, so that the bottom end of the connecting shaft 1 transmits the inertial force to the buffer pad 8, which is then transmitted to the support rod 10 by the buffer pad 8, and then to the sliding sleeve 9. The sliding sleeve 9 converts the longitudinal vibration force into a transverse vibration force on the guide rod 7, and finally transmits the vibration force to the shock absorber mechanism 3 through the guide rod 7. The slide plate 305 connected to the guide rod 7 slides back and forth on the fixed rod 307 in the shock absorber mechanism 3. During the reciprocating sliding process, the transverse vibration force is converted into elastic deformation of the first spring 304 and the second spring 308. The transverse vibration force is partially reduced through the stretching and compression process of the two groups of springs. The shock absorber mechanism 3 is provided with two groups in the upper and lower parts of the shock absorber cylinder 2, and each group of shock absorber mechanisms 3 is provided with five. The shock absorber mechanism 3 is fixedly connected to the inner wall of the shock absorber cylinder 2 at the end deviating from the center of the shock absorber cylinder 2.

[0026] like Figure 2 As shown, a plurality of groups of baffles 4 distributed in a circular array are provided on the baffle plate 6, one end of the baffle 4 is fixedly connected to the inner wall of the shock-absorbing cylinder 2 with a protruding height higher than the baffle plate 6, and the other end of the baffle 4 is fixedly connected to the outer side of the enclosure 5, and a slide groove 601 is provided in the middle of each group of baffles 4 and on the baffle plate 6.

[0027] Specifically, two baffles 4 form a group, and the two baffles 4 in each group are parallel to each other. The height of the two baffles 4 is the distance that the protruding height of the shock absorber cylinder 2 is higher than the blocking plate 6, and the bottom ends of the two baffles 4 are fixedly connected to the top end of the blocking plate 6.

[0028] like Figure 2 As shown, the middle portion of the enclosure 5 is hollow to form a circular hole, and the connecting shaft 1 is adapted to be connected in the circular hole.

[0029] Specifically, the diameter of the circular hole is also comparable to the diameter of the connecting shaft 1 , so that the connecting shaft 1 can slide through the circular hole.

[0030] like Figure 5 As shown, the shock absorbing mechanism 3 includes a first plywood 301 and a second plywood 302 whose bottom ends are fixedly connected to the top of the blocking plate 6, and a connecting block 306 is slidably clamped at the center line of the top of the first plywood 301 and the second plywood 302. The bottom end of the connecting block 306 is fixedly connected to the top of the slide 305, and the top of the connecting block 306 is fixedly connected to the toggle block 303. The slide 305 is slidably clamped in the middle of the inside of the first plywood 301 and the second plywood 302.

[0031] Specifically, a first through groove is provided at the midline of the top ends of the first plywood board 301 and the second plywood board 302. This through groove enables the connecting block 306 to slide reciprocally therein. Similarly, a second through groove is provided at the center of the bottom ends of the first plywood board 301 and the second plywood board 302. This through groove enables the guide rod 7 to slide reciprocally within the through groove.

[0032] As Figure 5 shown, a first spring 304 is fixedly installed on one side of the sliding plate 305. The other end of the first spring 304 is fixedly connected to the outer periphery of the enclosure plate 5. A second spring 308 is fixedly connected to the other side of the sliding plate 305. The other end of the second spring 308 is fixedly connected to the inner wall of the shock-absorbing cylinder 2. The bottom end of the sliding plate 305 is fixedly connected to the upper end of the guide rod 7. A number of fixing rods 307 distributed in an annular array are fixedly installed on the outer periphery of the enclosure plate 5 and the inner wall of the shock-absorbing cylinder 2.

[0033] Specifically, first, the bottom surface of the shock-absorbing cylinder 2 first contacts the ground. The inertia on the drone body continuously presses down the connecting shaft 1, causing the bottom end of the connecting shaft 1 to transmit the inertial force to the buffer pad 8, then transmitted from the buffer pad 8 to the support rod 10, from the support rod 10 to the sliding sleeve 9, and then the sliding sleeve 9 converts the longitudinal shock force into a shock force on the transverse guide rod 7. Finally, the shock force is transmitted to the shock-absorbing mechanism 3 via the guide rod 7. The sliding plate 305 connected to the guide rod 7 slides back and forth on the fixing rods 307 in the shock-absorbing mechanism 3. During the reciprocating sliding process, the transverse shock force is converted into the elastic deformation of the first spring 304 and the second spring 308. Through the stretching and compression processes of the two groups of springs, the transverse shock force is partially reduced.

[0034] The working principle of the present utility model is as follows: When the drone lands, first, the bottom surface of the shock-absorbing cylinder 2 first contacts the ground. The inertia on the drone body continuously presses down the connecting shaft 1, causing the bottom end of the connecting shaft 1 to transmit the inertial force to the buffer pad 8, then transmitted from the buffer pad 8 to the support rod 10, from the support rod 10 to the sliding sleeve 9, and then the sliding sleeve 9 converts the longitudinal shock force into a shock force on the transverse guide rod 7. Finally, the shock force is transmitted to the shock-absorbing mechanism 3 via the guide rod 7. The sliding plate 305 connected to the guide rod 7 slides back and forth on the fixing rods 307 in the shock-absorbing mechanism 3. During the reciprocating sliding process, the transverse shock force is converted into the elastic deformation of the first spring 304 and the second spring 308. Through the stretching and compression processes of the two groups of springs, the transverse shock force is partially reduced. Among them, two groups of shock-absorbing mechanisms 3 are respectively provided above and below in the shock-absorbing cylinder 2, with five shock-absorbing mechanisms 3 in each group. One end of the shock-absorbing mechanism 3 deviating from the center of the shock-absorbing cylinder 2 is fixedly connected to the inner wall of the shock-absorbing cylinder 2.

[0035] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A drone shock absorber, characterized in that: The invention comprises a connecting shaft (1), the lower end of the connecting shaft (1) is fixedly connected to a buffer pad (8), the lower end center of the buffer pad (8) is hinged to a plurality of support rods (10), the ends of the plurality of support rods (10) are hinged to a sliding sleeve (9), the sliding sleeve (9) is slidably connected to a guide rod (7), the upper end and the lower end of the guide rod (7) are slidably connected to a shock absorbing mechanism (3), the shock absorbing mechanism (3) is mounted on a baffle plate (6), and the baffle plate (6) is mounted on the inner upper end of the shock absorbing cylinder (2).

2. The shock absorber for a drone according to claim 1, wherein: The baffle plate (6) is provided with a plurality of groups of baffles (4) distributed in a circular array, one end of the baffle plate (4) is fixedly connected to the inner wall of the shock-absorbing cylinder (2) with a protruding height higher than the baffle plate (6), and the other end of the baffle plate (4) is fixedly connected to the outer side of the enclosure (5), and a sliding groove (601) is provided in the middle of each group of baffle plates (4) and located on the baffle plate (6).

3. The shock absorber for a drone according to claim 2, characterized in that: The middle portion of the enclosure (5) is hollow, forming a circular hole, and the connecting shaft (1) is adapted to be connected in the circular hole.

4. The shock absorber for a drone according to claim 3, wherein: The shock absorbing mechanism (3) comprises a first plywood (301) and a second plywood (302) whose bottom ends are fixedly connected to the top end of the blocking plate (6); a connecting block (306) is slidably clamped at the center line of the top ends of the first plywood (301) and the second plywood (302); the bottom end of the connecting block (306) is fixedly connected to the top end of the slide plate (305); the top end of the connecting block (306) is fixedly connected to a toggle block (303); and the slide plate (305) is slidably clamped at the middle of the first plywood (301) and the second plywood (302).

5. The shock absorber for a drone according to claim 4, wherein: A first spring (304) is fixedly mounted on one side of the slide plate (305), the other end of the first spring (304) is fixedly connected to the periphery of the enclosure (5), a second spring (308) is fixedly connected to the other side of the slide plate (305), the other end of the second spring (308) is fixedly connected to the inner wall of the shock-absorbing cylinder (2), the bottom end of the slide plate (305) is fixedly connected to the upper end of the guide rod (7), and a plurality of fixed rods (307) distributed in a circular array are fixedly mounted on the periphery of the enclosure (5) and the inner wall of the shock-absorbing cylinder (2).

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