Search

CN-122009574-A - Unmanned aerial vehicle undercarriage

CN122009574ACN 122009574 ACN122009574 ACN 122009574ACN-122009574-A

Abstract

The invention belongs to the technical field of telescopic landing gears, in particular to an unmanned aerial vehicle landing gear which comprises a mounting part, a connecting mechanism, a supporting mechanism, an adjusting mechanism, a control mechanism and a buffer mechanism; the mounting part comprises a fixing frame and a mounting plate connected with the unmanned aerial vehicle body, the connecting mechanism comprises a sliding frame and a fixing strip, the fixing strip is fixedly arranged on the bottom surface of the fixing frame, the sliding frame is elastically arranged on the side wall of the fixing strip, the supporting mechanism comprises a mounting cylinder and a supporting rod, the sliding frame penetrates through the mounting cylinder and is rotationally connected with the mounting cylinder, the outer wall of the supporting rod is connected with the outer wall of the mounting cylinder through the elastic strip, the adjusting mechanism comprises a transmission shaft and a top pressing plate, the transmission shaft is fixedly arranged on the upper end surface of the top pressing plate, the top pressing plate is used for pressing the sliding frame, the control mechanism is used for locking and releasing the transmission shaft, the buffer mechanism comprises a control cylinder and a control plug, the control cylinder is provided with an output end and an input end which are in one-way conduction, and the damping, the damping and the stable lifting are reduced through the cooperation of the structure, and the continuous voyage of the unmanned aerial vehicle is improved.

Inventors

  • ZHANG JIAN
  • LI CHUNSHENG
  • ZHANG FAN

Assignees

  • 深圳市铭德金属制品有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (7)

  1. 1. The landing gear of the unmanned aerial vehicle is characterized by comprising a mounting part, a connecting mechanism, a supporting mechanism, an adjusting mechanism, a control mechanism and a buffer mechanism; The mounting part comprises a fixing frame (1) and a mounting plate (2) connected with the unmanned aerial vehicle body; The connecting mechanism comprises a sliding frame (7) and a fixing strip (12), wherein the fixing strip (12) is fixedly arranged on the bottom surface of the fixing frame (1), and the sliding frame (7) is elastically arranged on the side wall of the fixing strip (12); The supporting mechanism comprises a mounting cylinder (8) and a supporting rod (6), the sliding frame (7) penetrates through the mounting cylinder (8) and is rotationally connected with the mounting cylinder (8), and the outer wall of the supporting rod (6) is connected with the outer wall of the mounting cylinder (8) through an elastic strip; The adjusting mechanism comprises a transmission shaft (16) and a top pressing plate (5), the transmission shaft (16) is fixedly arranged on the upper end face of the top pressing plate (5), and the top pressing plate (5) is used for propping the sliding frame (7); The control mechanism is used for locking and releasing the transmission shaft (16); the buffer mechanism comprises a control cylinder (29) and a control plug (35), wherein the control cylinder (29) is provided with an output end and an input end which are in one-way conduction, the sliding of the control plug (35) is controlled by the rotation of the mounting cylinder (8), and the outer wall of the control plug (35) is in sliding fit with the inner wall of the control cylinder (29).
  2. 2. The landing gear of the unmanned aerial vehicle according to claim 1, wherein a guide cylinder (4) is fixedly arranged on the upper end surface of the fixed frame (1), an adjusting disc (23) is slidably arranged on the inner wall of the guide cylinder (4), the transmission shaft (16) penetrates through the adjusting disc (23), a spiral groove (17) is formed in the radial outer wall of the transmission shaft (16), and balls in sliding fit with the spiral groove (17) are arranged on the inner wall of the adjusting disc (23); The upper end face of the fixing strip (12) is fixedly provided with a connecting rod (13), and the other end of the connecting rod (13) is fixedly connected with the bottom face of the fixing frame (1).
  3. 3. The landing gear of an unmanned aerial vehicle according to claim 2, wherein the control mechanism comprises a connecting pin (22), a limiting pin (20), a controller (18) and a limiting groove (21) formed on the outer wall of the connecting pin (22); One end of the connecting pin (22) is fixedly connected with the outer wall of the adjusting disc (23), the limiting pin (20) is used for being inserted into the limiting groove (21), and the controller (18) is fixedly arranged on the inner wall of the mounting plate (2) and controls the limiting pin (20) to slide through magnetic force.
  4. 4. The landing gear of the unmanned aerial vehicle according to claim 3, wherein the inner wall of the mounting plate (2) is elastically provided with a sliding plate (19), the outer wall of the sliding plate (19) is in sliding fit with the inner wall of the mounting plate (2), and the outer wall of the sliding plate (19) is fixedly connected with the outer wall of the limiting pin (20); The side wall of the installation cylinder (8) is provided with a fan-shaped groove (9), the inner wall of the fan-shaped groove (9) is slidably provided with a fan-shaped piece (15), and one end of the fan-shaped piece (15) is fixedly connected with the side wall of the sliding frame (7).
  5. 5. The landing gear of an unmanned aerial vehicle according to claim 4, wherein a guide rod (10) is fixedly arranged on the side wall of the fixed strip (12), and the guide rod (10) penetrates through the sliding frame (7) and is in sliding connection with the sliding frame (7); the bottom surface of the fixing frame (1) is fixedly provided with a blocking rod (3), the outer wall of the mounting cylinder (8) is fixedly provided with a poking plate (11), and the blocking rod (3) is used for blocking the poking plate (11); The inner wall of the installation cylinder (8) is fixedly provided with a transmission cylinder (27), the transmission cylinder (27) is rotationally connected with a single side wall of the sliding frame (7) through a torsion spring, and the side wall of the sliding frame (7) is provided with a bearing (28) connected with the transmission cylinder (27).
  6. 6. The landing gear of an unmanned aerial vehicle according to claim 5, wherein a transmission disc (26) is slidably arranged on the side wall of the sliding frame (7), a control rod (31) is fixedly arranged on the side wall of the transmission disc (26), and one end of the control rod (31) extends to the inner cavity of the control cylinder (29) and is fixedly connected with the outer wall of the control plug (35); The inner wall of the control cylinder (29) is fixedly provided with a filter cover (34), and the filter cover (34) is positioned at the output end of the control cylinder (29).
  7. 7. The landing gear of an unmanned aerial vehicle according to claim 6, wherein a control disc (25) is fixedly arranged on the inner wall of the mounting cylinder (8), a control lug (32) is fixedly arranged on the outer wall of the control disc (25), a transmission lug (24) is fixedly arranged on the outer wall of the transmission disc (26), and the control lug (32) is used for pushing the transmission lug (24); The side walls of the transmission disc (26) and the control disc (25) are fixedly provided with connecting rings (33), and the two connecting rings (33) are connected through elastic pieces; The outer wall of the installation cylinder (8) is provided with a notch, a reinforcing rod (30) is fixedly arranged at the notch of the outer wall of the installation cylinder (8), an elastic sheet (14) is fixedly arranged on the outer wall of the installation cylinder (8), and the elastic sheet (14) is used for sealing the notch of the outer wall of the installation cylinder (8).

Description

Unmanned aerial vehicle undercarriage Technical Field The invention belongs to the technical field of telescopic landing gears, and particularly relates to an unmanned aerial vehicle landing gear. Background Along with the rapid development of unmanned aerial vehicle technology, its application in many fields such as mapping, commodity circulation transportation, electric power inspection, agricultural plant protection take place extensively, and the undercarriage is as unmanned aerial vehicle's key bearing part, directly relates to unmanned aerial vehicle's take off and land security, flight stability and equipment life. At present, the main unmanned aerial vehicle landing gear in the market mostly adopts fixed design, and the landing gear is widely applied to small and medium unmanned aerial vehicles by virtue of the characteristics of simple structure, low manufacturing cost and the like, but in the actual use process, a plurality of technical defects which are difficult to ignore are gradually exposed. In the flight stage, the fixed landing gear always keeps an open state, the structure of the fixed landing gear protruding out of the machine body can obviously increase air resistance, the increase of the air resistance not only can lead to the rise of flight energy consumption of the unmanned aerial vehicle, but also can greatly shorten the cruising ability, and especially for a small unmanned aerial vehicle which depends on battery power supply, the cruising short plate directly limits the operation radius and the task duration of the unmanned aerial vehicle. At the landing stage, the fixed landing gear lacks effectual buffering damping mechanism when contacting with ground, and the impact force and the vibrations on ground can directly transmit to unmanned aerial vehicle organism, have integrated a large amount of accurate electronic component, sensor, shooting equipment etc. in the unmanned aerial vehicle organism, and these parts are extremely sensitive to vibrations, and long-term vibrations transmission leads to the part to become flexible, contact failure easily, causes the core component to damage even, causes data loss or equipment trouble, seriously reduces unmanned aerial vehicle's life. To this end, the invention provides an unmanned aerial vehicle landing gear. Disclosure of Invention In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved. The technical scheme adopted for solving the technical problems is that the landing gear of the unmanned aerial vehicle comprises a mounting part, a connecting mechanism, a supporting mechanism, an adjusting mechanism, a control mechanism and a buffering mechanism; the mounting part comprises a fixing frame and a mounting plate connected with the unmanned aerial vehicle body; the connecting mechanism comprises a sliding frame and a fixing strip, the fixing strip is fixedly arranged on the bottom surface of the fixing frame, and the sliding frame is elastically arranged on the side wall of the fixing strip; The support mechanism comprises a mounting cylinder and a support rod, the sliding frame penetrates through the mounting cylinder and is rotationally connected with the mounting cylinder, and the outer wall of the support rod is connected with the outer wall of the mounting cylinder through an elastic strip; The adjusting mechanism comprises a transmission shaft and a pressing plate, the transmission shaft is fixedly arranged on the upper end face of the pressing plate, and the pressing plate is used for pressing the sliding frame; The control mechanism is used for locking and releasing the transmission shaft; The buffer mechanism comprises a control cylinder and a control plug, the control cylinder is provided with an output end and an input end which are in one-way conduction, the sliding of the control plug is controlled by the rotation of the mounting cylinder, and the outer wall of the control plug is in sliding fit with the inner wall of the control cylinder. Preferably, the upper end surface of the fixing frame is fixedly provided with a guide cylinder, the inner wall of the guide cylinder is slidably provided with an adjusting disk, the transmission shaft penetrates through the adjusting disk, the radial outer wall of the transmission shaft is provided with a spiral groove, and the inner wall of the adjusting disk is provided with a ball which is slidably matched with the spiral groove; The upper end face of the fixing strip is fixedly provided with a connecting rod, and the other end of the connecting rod is fixedly connected with the bottom surface of the fixing frame. Preferably, the control mechanism comprises a connecting pin, a limiting pin, a controller and a limiting groove arranged on the outer wall of the connecting pin; one end of the connecting pin is fixedly connected with the outer wall of the adjusting plate, the limiting pin is used for being inserted into