Shock absorption undercarriage of unmanned aerial vehicle

Abstract

The utility model provides an unmanned aerial vehicle damping undercarriage, and belongs to the technical field of unmanned aerial vehicle undercarriages, the unmanned aerial vehicle damping undercarriage comprises a first elastic damping mechanism and a second elastic damping mechanism, the unmanned aerial vehicle is in direct contact with a landing plate during landing, the landing plate is connected with a mounting plate through the first elastic damping mechanism, and the first elastic damping mechanism buffers and dampens the landing plate; the mounting plate is connected with the damping base through a second elastic damping mechanism, and the mounting plate is buffered and damped by the second elastic damping mechanism; the shock absorption base is placed on the supporting face, the shock absorption structure is arranged on the shock absorption base, the shock absorption structure absorbs impact borne by the shock absorption base, buffering and shock absorption are conducted again, then through three times of buffering and shock absorption, the absorption and dispersion effect on the impact generated when the unmanned aerial vehicle ascends and descends is improved, and the buffering and shock absorption efficiency is high; the stability of the overall structure of the undercarriage is guaranteed, the undercarriage is prevented from being broken by too large impact force generated when the unmanned aerial vehicle takes off and lands, and it is guaranteed that the unmanned aerial vehicle can stably take off and land on the take-off and landing plate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of unmanned aerial vehicle landing gear, and particularly relates to an unmanned aerial vehicle damping landing gear. BACKGROUND

[0002] With the continuous in-depth development of the application of unmanned aerial vehicles in various fields, the high-frequency take-off and landing demand of unmanned aerial vehicles in many fields such as logistics transportation, emergency rescue, agricultural plant protection and the like presents an increasingly growing trend. Different types of take-off and landing environmental factors, such as complex terrain environment (such as mountainous areas, farmland, urban building gaps and the like), and impact force generated by inertia when the unmanned aerial vehicle lands, all can significantly affect the stability and safety of the take-off and landing platform. Compared with the relatively simple conventional take-off and landing environment, the unmanned aerial vehicle take-off and landing faces higher risks and challenges in complex and special environments. In particular, in some areas with complex and variable terrain, and in environments with multiple interference factors, the design and use of the unmanned aerial vehicle take-off and landing platform face many problems; however, the existing unmanned aerial vehicle take-off and landing platform cannot provide stable and reliable buffer protection when facing complex landing impact, and the comprehensive performance is difficult to meet the take-off and landing demand of the unmanned aerial vehicle. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, according to the embodiment of the application, an unmanned aerial vehicle damping landing gear is provided, which comprises:

[0005] A damping base;

[0006] A mounting plate is horizontally arranged at the top end of the damping base, and the mounting plate is slidably connected with the damping base, and the mounting plate can slide along the height direction of the damping base;

[0007] A landing plate is arranged above the mounting plate in parallel;

[0008] A first elastic damping mechanism is arranged on the mounting plate, a second end of the first elastic damping mechanism is arranged on the landing plate, and the first elastic damping mechanism elastically supports between the mounting plate and the landing plate;

[0009] A second elastic damping mechanism is arranged in the damping base, a first end of the second elastic damping mechanism is arranged on the inner wall of the damping base, and a second end of the second elastic damping mechanism is arranged on the mounting plate, and the second elastic damping mechanism elastically supports the mounting plate.

[0010] In a feasible embodiment, at least a partial anti-skid area is arranged on the top surface of the landing plate.

[0011] In an implementation, the first elastic damping mechanism includes a plurality of first springs vertically arranged between the mounting plate and the landing plate.

[0012] The mounting plate is provided with a plurality of first mounting slots, and the landing plate is provided with a plurality of second mounting slots, the first ends of the first springs are embedded in the first mounting slots, and the second ends of the first springs are embedded in the second mounting slots.

[0013] The first mounting slots, the second mounting slots and the first springs are in one-to-one correspondence.

[0014] In an implementation, the second elastic damping mechanism includes a plurality of damping supports uniformly arranged in the damping base along the circumference of the damping base.

[0015] The damping support includes:

[0016] A support member, the support member is provided with a guide slot, and the support member is arranged on the inner wall of the damping base.

[0017] A sliding block, the sliding block is slidably arranged in the guide slot.

[0018] A second spring, the second spring is arranged in the guide slot along the length direction of the support member, the first end of the second spring is in abutment with the sliding block, and the second end of the second spring is in abutment with the inner wall of the damping base.

[0019] A support rod, the first end of the support rod is rotatably connected with the sliding block, and the second end of the support rod is rotatably connected with the mounting plate.

[0020] In an implementation, the damping support further includes:

[0021] A sliding rail, the sliding rail is arranged on the inner wall of the guide slot along the length direction of the guide slot.

[0022] At least part of the sliding rail is embedded in the sliding block to guide the movement of the sliding block by the sliding rail.

[0023] In an implementation, the unmanned aerial vehicle damping landing gear further includes:

[0024] A first mounting block, the first mounting block is arranged on the inner wall of the damping base, and the support member is arranged on the first mounting block.

[0025] A second mounting block, the second mounting block is arranged on the bottom surface of the mounting plate, the second mounting block is provided with a hinged portion, and the second end of the support rod is rotatably connected to the hinged portion through a hinged shaft.

[0026] In an implementation, the first mounting block is made of rubber.

[0027] The joint between the support member and the first mounting block is subjected to electroplating treatment by using a chemical plating process.

[0028] In an embodiment, the damping base comprises:

[0029] a shell, the shell being a hollow cavity with an opening at the top, and the second elastic damping mechanism being arranged in the shell;

[0030] a damping ring, the damping ring being elastic, and the damping ring being arranged on the outer side of the shell along the circumference of the shell;

[0031] a damping pad, the damping pad being elastic, and the damping pad being arranged at the bottom of the shell and at the bottom of the damping ring.

[0032] In an embodiment, the damping ring is made of rubber; and the joint between the shell and the damping ring is electroplated by using a chemical plating process.

[0033] the damping pad is made of rubber; and the joint between the shell and the damping pad is electroplated by using a chemical plating process.

[0034] In an embodiment, the unmanned aerial vehicle damping landing gear further comprises:

[0035] a filter screen, the filter screen being arranged on the opening and covering at least the gap between the mounting plate and the inner wall of the shell.

[0036] Compared with the prior art, the unmanned aerial vehicle damping landing gear has the following beneficial effects:

[0037] The unmanned aerial vehicle damping landing gear comprises a damping base, a mounting plate, a landing plate, a first elastic damping mechanism and a second elastic damping mechanism. The unmanned aerial vehicle directly contacts the landing plate during landing, the landing plate is connected to the mounting plate through the first elastic damping mechanism, and the first elastic damping mechanism buffers and dampens the landing plate. The mounting plate is connected to the damping base through the second elastic damping mechanism, and the second elastic damping mechanism buffers and dampens the mounting plate. The damping base is placed on a support surface, and a damping structure is arranged on the damping base. The damping structure absorbs the impact received by the damping base, buffers and dampens again, and then buffers and dampens three times to increase the absorption and dispersion effect of the impact generated during the landing of the unmanned aerial vehicle. The damping efficiency is high, the stability of the overall structure of the landing gear is ensured, the impact force generated during the landing of the unmanned aerial vehicle is prevented from breaking the landing gear, the unmanned aerial vehicle can smoothly complete the landing action on the landing plate, and the safety and stability of the landing of the unmanned aerial vehicle are improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to limit the scope of the present application. The same reference numbers in different drawings identify the same components throughout the text. In the drawings:

[0039] Figure 1 A schematic structural view of a first angle of a UAV shock-absorbing landing gear according to an embodiment of the present application;

[0040] Figure 2 A schematic structural view of a first spring of a UAV shock-absorbing landing gear according to an embodiment of the present application;

[0041] Figure 3 A schematic structural view of a second elastic shock-absorbing mechanism of a UAV shock-absorbing landing gear according to an embodiment of the present application;

[0042] Figure 4 A schematic structural view of a shock-absorbing support of a UAV shock-absorbing landing gear according to an embodiment of the present application;

[0043] Figure 5 A schematic structural view of a second mounting block of a UAV shock-absorbing landing gear according to an embodiment of the present application;

[0044] Correspondence between reference numerals in the drawings and component names is as follows: Figures 1 to 5

[0045] 11, shock-absorbing base; 12, mounting plate; 13, landing plate; 14, first elastic shock-absorbing mechanism; 15, second elastic shock-absorbing mechanism; 16, first mounting slot; 17, second mounting slot; 18, first mounting block; 19, second mounting block;

[0046] 140, first spring; 150, shock-absorbing support;

[0047] 111, housing; 112, shock-absorbing ring; 113, shock-absorbing pad;

[0048] 151, support; 152, sliding block; 153, second spring; 154, support rod; 155, sliding rail. DETAILED DESCRIPTION

[0049] ​In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0051] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0053] As Figure 1As shown, according to the embodiment of the present application, a shock-absorbing landing gear for unmanned aerial vehicle is provided, comprising: a shock-absorbing base 11, a mounting plate 12, a landing plate 13, a first elastic shock-absorbing mechanism 14 and a second elastic shock-absorbing mechanism 15; the mounting plate 12 is horizontally arranged at the top end of the shock-absorbing base 11, and the mounting plate 12 is slidably connected with the shock-absorbing base 11, and the mounting plate 12 can slide along the height direction of the shock-absorbing base 11; the landing plate 13 is arranged above the mounting plate 12 in parallel; the first end of the first elastic shock-absorbing mechanism 14 is arranged on the mounting plate 12, the second end of the first elastic shock-absorbing mechanism 14 is arranged on the landing plate 13, and the first elastic shock-absorbing mechanism 14 elastically supports between the mounting plate 12 and the landing plate 13; the second elastic shock-absorbing mechanism 15 is arranged in the shock-absorbing base 11, the first end of the second elastic shock-absorbing mechanism 15 is arranged on the inner wall of the shock-absorbing base 11, and the second end of the second elastic shock-absorbing mechanism 15 is arranged on the mounting plate 12, and the second elastic shock-absorbing mechanism 15 elastically supports the mounting plate 12.

[0054] The shock-absorbing landing gear for unmanned aerial vehicle provided by the embodiment of the present application comprises the shock-absorbing base 11, the mounting plate 12, the landing plate 13, the first elastic shock-absorbing mechanism 14 and the second elastic shock-absorbing mechanism 15, the unmanned aerial vehicle directly contacts with the landing plate 13 when taking off and landing, the landing plate 13 is connected with the mounting plate 12 through the first elastic shock-absorbing mechanism 14, and the first elastic shock-absorbing mechanism 14 buffers and absorbs the shock of the landing plate 13; the mounting plate 12 is connected with the shock-absorbing base 11 through the second elastic shock-absorbing mechanism 15, and the second elastic shock-absorbing mechanism 15 buffers and absorbs the shock of the mounting plate 12; the shock-absorbing base 11 is placed on a supporting surface, and the shock-absorbing base 11 is provided with a shock-absorbing structure, which absorbs the impact received by the shock-absorbing base 11, buffers and absorbs the shock again, and then buffers and absorbs the shock for three times, thereby increasing the absorption and dispersion effect of the impact generated by the unmanned aerial vehicle when taking off and landing, improving the buffering and absorbing efficiency, ensuring the stability of the overall structure of the landing gear, avoiding the excessive impact force generated when the unmanned aerial vehicle takes off and lands from breaking the landing gear, ensuring that the unmanned aerial vehicle can smoothly complete the taking-off and landing action on the landing plate 13, and improving the safety and stability of the unmanned aerial vehicle taking off and landing.

[0055] It should be noted that the unmanned aerial vehicle completes the taking-off and landing action on the landing gear. When the unmanned aerial vehicle lands on the landing gear, the initial impact absorption is realized through the shock-absorbing base 11, which can effectively attenuate the landing impact of the unmanned aerial vehicle, serving as the first buffering when the unmanned aerial vehicle takes off and lands; the second elastic shock-absorbing mechanism 15 absorbs the impact energy between the mounting plate 12 and the shock-absorbing base 11, further reducing the impact of the impact force on the unmanned aerial vehicle taking off and landing, serving as the second buffering when the unmanned aerial vehicle takes off and lands; the first elastic shock-absorbing mechanism 14 between the mounting plate 12 and the landing plate 13 can eliminate the remaining impact and perform the final buffering, serving as the third buffering when the unmanned aerial vehicle takes off and lands, thereby ensuring that the unmanned aerial vehicle can land smoothly.

[0056] In some examples, a fan and a fan motor are arranged in the shock-absorbing base 11, and a retracting hole is arranged on the mounting plate 12 and the landing plate 13. When the unmanned aerial vehicle has a large speed impulse during landing, the fan motor drives the fan to rotate and blow air from the retracting hole to the unmanned aerial vehicle. During the descent of the unmanned aerial vehicle, the air resistance is generated to buffer the landing of the unmanned aerial vehicle, so as to reduce the impact of the unmanned aerial vehicle on the landing gear.

[0057] Further, the mounting plate 12 is slidably connected with the shock-absorbing base 11 through a guide rail. The guide rail guides the lifting operation of the mounting plate 12, prevents the mounting plate 12 from sliding left and right, prevents the mounting plate 12 from being stuck when moving along the vertical direction of the shock-absorbing base 11, and ensures the smoothness of the movement of the mounting plate 12, so as to ensure that the mounting plate 12 timely applies pressure to the second elastic shock-absorbing mechanism 15 and ensure the timeliness of the buffering and shock-absorbing of the second elastic shock-absorbing mechanism 15.

[0058] In a feasible implementation, at least a part of the top surface of the landing plate 13 is provided with an anti-skid area.

[0059] In the technical solution, the anti-skid area is arranged on at least the top surface of the landing plate 13, so as to increase the friction between the unmanned aerial vehicle and the landing plate 13, prevent the unmanned aerial vehicle from sliding off the landing gear during landing, and ensure the safety of the landing of the unmanned aerial vehicle.

[0060] Further, the anti-skid area is made of a material with a static friction coefficient of 0.6μ-1.2μ. In some examples, the anti-skid area can be arranged only on the contact surface between the landing plate 13 and the unmanned aerial vehicle, so as to ensure the friction between the unmanned aerial vehicle and the landing plate 13. Alternatively, the landing plate 13 can be made of a material with a static friction coefficient of 0.6μ-1.2μ, so as to ensure the integration degree of the structure of the landing plate 13, make the manufacturing of the landing plate 13 more simple and convenient, and ensure that the contact area between the anti-skid area and the unmanned aerial vehicle is sufficient.

[0061] As a priority solution, the landing plate 13 is made of a rubber plate, which can ensure the anti-skid property of the landing plate 13 and enable the landing plate 13 to have a buffering and shock-absorbing function, so as to further improve the buffering and shock-absorbing effect of the landing gear.

[0062] As shown in FIGS. 1, 2 and 3, in a feasible implementation, the first elastic shock-absorbing mechanism 14 includes a plurality of first springs 140, which are vertically arranged between the mounting plate 12 and the landing plate 13. Figure 1 Figure 2 As shown in FIGS. 1, 2 and 3, in a feasible implementation, the first elastic shock-absorbing mechanism 14 includes a plurality of first springs 140, which are vertically arranged between the mounting plate 12 and the landing plate 13.

[0063] ​In the technical scheme, the mounting plate 12 and the landing plate 13 are horizontally arranged, the first spring 140 is vertically arranged between the mounting plate 12 and the landing plate 13, and the two ends of the first spring 140 are positioned through the first mounting groove 16 and the second mounting groove 17, so that the stability of the installation of the first spring 140 is improved, the reliability of the buffering and supporting of the first elastic damping mechanism 14 on the landing plate 13 is improved, and the landing plate 13 is prevented from moving and the tendency of the unmanned aerial vehicle to slide off from the landing plate 13 in the landing process is further reduced.

[0064] As shown in Figure 1 , Figure 3 and Figure 4 , in a feasible implementation, the second elastic damping mechanism 15 includes a plurality of damping supports 150, the damping supports 150 are uniformly arranged in the damping base 11 along the circumference of the damping base 11; the damping support 150 includes a support 151, a sliding block 152, a second spring 153 and a support rod 154; the support 151 is provided with a guide groove, and the support 151 is arranged on the inner wall of the damping base 11; the sliding block 152 is slidably arranged in the guide groove; the second spring 153 is arranged in the guide groove along the length direction of the support 151, the first end of the second spring 153 is attached to the sliding block 152, and the second end of the second spring 153 is attached to the inner wall of the damping base 11; the first end of the support rod 154 is rotatably connected to the sliding block 152, and the second end of the support rod 154 is rotatably connected to the mounting plate 12.

[0065] In the technical scheme, the second elastic damping mechanism 15 includes a plurality of damping supports 150, the damping supports 150 are uniformly arranged in the damping base 11 along the circumference of the damping base 11, and the plurality of damping supports 150 respectively disperse the impact force from different directions of the same horizontal plane, so that the efficiency and effect of the buffering and damping of the second elastic damping mechanism 15 are improved; the mounting plate 12 and the damping base 11 are sequentially connected through the straight rod, the sliding block 152 and the second spring 153; the support 151 serves as a guide structure of the sliding block 152 and the second spring 153, the second spring 153 and the sliding block 152 are arranged in the guide groove of the support 151, the second spring 153 can be stretched and contracted in the length direction of the guide groove, and the sliding block 152 can slide in the length direction of the guide groove, the movement tracks of the second spring 153 and the sliding block 152 are limited through the guide groove, so that the reliability of the movement of the second spring 153 and the sliding block 152 is ensured, the smoothness of the action of the damping support 150 is helped to be ensured, the action of the damping support 150 in the damping process is prevented from being stuck, the normal work of the damping support 150 in the damping process is ensured, and the timeliness of the buffering and damping of the second elastic damping mechanism 15 is ensured.

[0066] In the technical solution, when the support rod 154 is pressed by the mounting plate 12, the support moves downward, extruding the sliding block 152, and the sliding block 152 moves laterally to extrude the second spring 153. The shock-absorbing support 150 is connected to the shock-absorbing base 11 below and the mounting plate 12 above. Through the connection of the shock-absorbing support 150, the longitudinal damping of the mounting plate 12 is converted into lateral damping, and the moving range of the shock-absorbing support 150 is within the elastic deformation range of the second spring 153, thereby preventing the second spring 153 from being damaged and prolonging the service life of the second elastic damping mechanism 15.

[0067] It can be understood that the shock-absorbing support 150 converts the longitudinal impact on the mounting plate 12 into lateral displacement of the sliding block 152, absorbs the impact energy on the mounting plate 12 through the lateral expansion of the second spring 153, thereby reducing the impact of the landing impact force of the unmanned aerial vehicle on the landing gear. Through the cooperation of the sliding block 152 inside the support 151 and the guide groove, a damping effect is generated, realizing the lateral free movement of the second spring 153 inside the support 151, converting the longitudinal damping into lateral damping, and further enhancing the damping effect.

[0068] Further, the shock-absorbing support 150 is provided with three, the included angle between adjacent two shock-absorbing supports 150 is 120 degrees, and the shock-absorbing supports 150 intersect at the center of the shock-absorbing base 11, so as to ensure the uniformity of the dispersion of the impact force of the second elastic damping mechanism 15.

[0069] As shown in Figure 1 In a possible implementation, the shock-absorbing support 150 further comprises a sliding rail 155, which is arranged on the inner wall of the guide groove along the length direction of the guide groove; and at least part of the sliding rail 155 is embedded in the sliding block 152, so as to guide the movement of the sliding block 152 through the sliding rail 155.

[0070] In the technical solution, the sliding block 152 and the sliding rail 155 are slidingly connected, so as to control the movement track of the sliding block 152 through the sliding rail 155; the second spring 153 is connected with the sliding block 152, and the movement track of the sliding block 152 is controlled through the sliding rail 155, preventing the sliding block 152 from being stuck during movement and the second spring 153 from being stuck during expansion due to deviation, ensuring the smoothness of the movement of the sliding block 152 and the expansion of the second spring 153, thereby ensuring the timeliness of the damping of the second elastic damping mechanism 15.

[0071] As shown in Figure 1 and Figure 5As shown, in a possible implementation, the unmanned aerial vehicle shock-absorbing landing gear further comprises: a first mounting block 18 and a second mounting block 19, the first mounting block 18 is arranged on the inner wall of the shock-absorbing base 11, and the support 151 is arranged on the first mounting block 18; the second mounting block 19 is arranged on the bottom surface of the mounting plate 12, and the second mounting block 19 is provided with a hinged part, and the second end of the support rod 154 is rotationally connected to the hinged part through a hinge shaft.

[0072] In the technical scheme, the support 151 is fixed on the inner wall of the shock-absorbing base 11 through the first mounting block 18, and the straight rod is rotationally connected to the mounting plate 12 through the second mounting block 19, thereby realizing stable installation of the shock-absorbing support 150 between the mounting plate 12 and the shock-absorbing base 11, and ensuring the stability of the fixed shock-absorbing support 150 on the basis of ensuring the flexibility of the shock-absorbing support 150.

[0073] In a possible implementation, the first mounting block 18 is made of rubber material; and the joint between the support 151 and the first mounting block 18 is subjected to electroplating treatment through a chemical plating process.

[0074] In the technical scheme, the first mounting block 18 is made of rubber material, so that the first mounting block 18 itself has a shock-absorbing and buffering function, thereby buffering the vibration transmission between the support 151 and the shock-absorbing base 11 and further improving the shock-absorbing effect of the landing gear; the joint between the support 151 and the first mounting block 18 is subjected to electroplating treatment through a chemical plating process, thereby realizing reliable connection between the support 151 and the first mounting block 18, improving the bonding strength, and ensuring the stability and reliability of the fixed support 151.

[0075] Further, the support 151 is made of metal material, and the joint between the metal support 151 and the non-metal first mounting block 18 is subjected to electroplating treatment through a chemical plating process, so that a transition layer with good bonding force with the non-metal material is formed on the surface of the joint, thereby realizing reliable connection between the support 151 and the first mounting block 18.

[0076] Further, as shown in Figure 1 the end of the second spring 153 away from the sliding block 152 is embedded in the first mounting block 18, and the end surface of the first mounting block 18 is attached to the support 151, which not only can further buffer the impact force by using the first mounting block 18, but also can prevent the direct contact of the support 151, the second spring 153 and the shock-absorbing base 11, thereby serving as a protective structure for the second spring 153 and the support 151, and simultaneously serving as a buffering structure for the shock-absorbing base 11, thereby preventing the shock-absorbing base 11 from being directly subjected to a large pressure of the second spring 153 and being broken.

[0077] As shown in Figure 1 and Figure 2As shown, in an embodiment, the shock-absorbing base 11 comprises a shell 111, a shock-absorbing ring 112 and a shock-absorbing pad 113. The shell 111 is a hollow cavity with an opening at the top, and the second elastic shock-absorbing mechanism 15 is arranged in the shell 111. The shock-absorbing ring 112 is elastic and arranged on the outside of the shell 111 along the circumference of the shell 111. The shock-absorbing pad 113 is elastic and arranged at the bottom of the shell 111, and the shock-absorbing pad 113 is arranged at the bottom of the shock-absorbing ring 112.

[0078] In this technical solution, the shell 111 is used to mount the mounting plate 12 and accommodate the second elastic shock-absorbing mechanism 15, thereby protecting the second elastic shock-absorbing mechanism 15. The shock-absorbing ring 112 can protect the shell 111 and increase the contact area of the shell 111 with the supporting surface, thereby improving the stability of the landing gear. The shock-absorbing pad 113 arranged at the bottom of the shock-absorbing ring 112 and the shell 111 can not only absorb the shock of the shell 111, but also prevent the landing gear from slipping on the contact surface, thereby ensuring the stability of the contact between the landing gear and the supporting surface and effectively protecting the supporting surface.

[0079] In some examples, the shock-absorbing pad 113 is made of rubber material with a hardness of 35±5 Shore A, which has good anti-skid and shock-absorbing performance and can attenuate 20% to 30% of the landing impact, thereby achieving initial impact absorption and serving as a primary shock absorber.

[0080] In an embodiment, the shock-absorbing ring 112 is made of rubber material. The joint between the shell 111 and the shock-absorbing ring 112 is electroplated by using a chemical plating process. The shock-absorbing pad 113 is made of rubber material. The joint between the shell 111 and the shock-absorbing pad 113 is electroplated by using a chemical plating process.

[0081] In this technical solution, the joint between the shell 111 and the shock-absorbing ring 112 is electroplated by using a chemical plating process, and the joint between the shell 111 and the shock-absorbing pad 113 is electroplated by using a chemical plating process, thereby achieving reliable connection between the shell 111 and the shock-absorbing ring 112 and between the shell 111 and the shock-absorbing pad 113, improving the bonding strength and ensuring the stability and reliability of the overall structure of the shock-absorbing base 11.

[0082] Further, the shell 111 is made of metal material to ensure that the shock-absorbing base 11 has sufficient weight and does not overturn. The joints between the non-metal shock-absorbing ring 112 and the metal base and between the non-metal shock-absorbing pad 113 and the metal base are electroplated by using a chemical plating process, thereby forming a transition layer with good bonding force with the non-metal material on the surface of the joint, thereby achieving reliable connection between the shock-absorbing pad 113 and the shell 111 and between the shock-absorbing ring 112 and the shell 111.

[0083] In a feasible embodiment, the unmanned aerial vehicle shock-absorbing landing gear further comprises a filter screen arranged on the opening, the filter screen covering at least the gap between the mounting plate 12 and the inner wall of the shell 111.

[0084] In the technical solution, the filter screen is arranged at the opening of the shell 111 to prevent sundries from entering the inside of the shock-absorbing base 11 and affecting the operation of the second elastic shock-absorbing mechanism 15, thereby ensuring the safety of the landing gear operation.

[0085] Landing gear shock-absorbing principle:

[0086] The landing gear comprises at least a three-stage shock-absorbing system:

[0087] First-stage shock absorption: the shock-absorbing base 11 absorbs the initial impact through the rubber shock-absorbing pad 113 of 35±5 Shore A hardness at the bottom, which can effectively attenuate 20% to 30% of the landing impact, and serves as the first buffer for the unmanned aerial vehicle during landing;

[0088] Second-stage shock absorption: the slider 152-spring system in the support 151 converts the longitudinal impact during the landing of the unmanned aerial vehicle into transverse displacement, and absorbs 40% to 50% of the impact energy through the transverse expansion and contraction of the second spring 153, thereby further reducing the impact force on the landing gear;

[0089] Third-stage shock absorption: the first spring 140 arranged between the mounting plate 12 and the landing plate 13 performs the final buffer and eliminates the remaining impact, thereby ensuring the smooth landing of the unmanned aerial vehicle, preventing the landing gear from being broken by a large impact force, and ensuring the safety of the landing of the unmanned aerial vehicle.

[0090] Those skilled in the art can understand that the above embodiments can be freely combined and superimposed without conflict.

[0091] The above is only a preferred embodiment of the present application and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and it should be noted that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present application, and these improvements and modifications shall be regarded as the protection scope of the present application.

Claims

1. An unmanned aerial vehicle shock absorbing landing gear, characterized by, The unmanned aerial vehicle shock-absorbing landing gear comprises: a shock-absorbing base; a mounting plate horizontally arranged at the top end of the shock-absorbing base, the mounting plate being slidably connected with the shock-absorbing base, the mounting plate being capable of sliding along the height direction of the shock-absorbing base; a landing plate arranged in parallel above the mounting plate; a first elastic shock-absorbing mechanism, the first end of the first elastic shock-absorbing mechanism being arranged on the mounting plate, the second end of the first elastic shock-absorbing mechanism being arranged on the landing plate, the first elastic shock-absorbing mechanism being elastically supported between the mounting plate and the landing plate; a second elastic shock-absorbing mechanism, the second elastic shock-absorbing mechanism being arranged in the shock-absorbing base, the first end of the second elastic shock-absorbing mechanism being arranged on the inner wall of the shock-absorbing base, the second end of the second elastic shock-absorbing mechanism being arranged on the mounting plate, the second elastic shock-absorbing mechanism being elastically supported on the mounting plate.

2. The unmanned aerial vehicle shock-absorbing landing gear according to claim 1, wherein at least a partial anti-skid area is arranged on the top surface of the landing plate.

3. The unmanned aerial vehicle shock-absorbing landing gear according to claim 1, wherein the first elastic shock-absorbing mechanism comprises a plurality of first springs, the first springs being vertically arranged between the mounting plate and the landing plate; a plurality of first mounting grooves are arranged on the mounting plate, a plurality of second mounting grooves are arranged on the landing plate, the first end of the first spring being embedded in the first mounting groove, the second end of the first spring being embedded in the second mounting groove; wherein the first mounting groove, the second mounting groove and the first spring are in one-to-one correspondence.

4. The unmanned aerial vehicle shock-absorbing landing gear according to claim 1, wherein the second elastic shock-absorbing mechanism comprises a plurality of shock-absorbing supports, the shock-absorbing supports being evenly arranged in the shock-absorbing base along the circumferential direction of the shock-absorbing base; the shock-absorbing support comprises: a support member, a guide groove being arranged in the support member, the support member being arranged on the inner wall of the shock-absorbing base; a sliding block, the sliding block being slidably arranged in the guide groove; a second spring, the second spring being arranged in the guide groove along the length direction of the support member, the first end of the second spring being in abutment with the sliding block, the second end of the second spring being in abutment with the inner wall of the shock-absorbing base; a support rod, the first end of the support rod being rotatably connected with the sliding block, the second end of the support rod being rotatably connected with the mounting plate.

5. The unmanned aerial vehicle shock-absorbing landing gear according to claim 4, wherein the shock-absorbing support further comprises: a sliding rail, the sliding rail being arranged on the inner wall of the guide groove along the length direction of the guide groove; at least a part of the sliding rail is embedded in the sliding block, so as to guide the movement of the sliding block through the sliding rail.

6. The shock absorbing landing gear of claim 4, wherein, the unmanned aerial vehicle shock-absorbing landing gear further comprises: a first mounting block, the first mounting block being arranged on the inner wall of the shock-absorbing base, the support member being arranged on the first mounting block; A second mounting block is arranged on the bottom surface of the mounting plate, and a hinged part is arranged on the second mounting block, and the second end of the supporting rod is rotatably connected to the hinged part through a hinged shaft.

7. The unmanned aerial vehicle damping landing gear according to claim 6, characterized in that, The first mounting block is made of rubber material; The joint between the supporting member and the first mounting block is subjected to electroplating treatment by using a chemical plating process.

8. The unmanned aerial vehicle damping landing gear according to claim 1, characterized in that, The damping base comprises: a shell, which is a hollow cavity with an opening at the top, and the second elastic damping mechanism is arranged in the shell; a damping ring, which is elastic, and is arranged on the outside of the shell along the circumference of the shell; a damping pad, which is elastic, and is arranged at the bottom of the shell, and is arranged at the bottom of the damping ring.

9. The unmanned aerial vehicle damping landing gear according to claim 8, characterized in that, The damping ring is made of rubber material, and the joint between the shell and the damping ring is subjected to electroplating treatment by using a chemical plating process; The damping pad is made of rubber material, and the joint between the shell and the damping pad is subjected to electroplating treatment by using a chemical plating process.

10. The unmanned aerial vehicle shock absorbing landing gear of claim 8, wherein, The unmanned aerial vehicle damping landing gear further comprises: a filter screen, which is arranged on the opening and covers at least the gap between the mounting plate and the inner wall of the shell.

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