CN212890909U

CN212890909U - Unmanned aerial vehicle landing frame

Info

Publication number: CN212890909U
Application number: CN202022016133.1U
Authority: CN
Inventors: 刘仁华; 付森峰; 刘智国
Original assignee: Huizhou Zhonghe Aviation Technology Co ltd
Current assignee: Huizhou Zhonghe Aviation Technology Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-04-06
Anticipated expiration: 2030-09-15

Abstract

The utility model provides an unmanned aerial vehicle landing frame, including two landing frame devices, two landing frame devices are used for installing in unmanned aerial vehicle bottom both sides respectively. The falling frame device comprises two supporting rod assemblies and an underframe strip, wherein the two supporting rod assemblies are respectively connected with the underframe strip. The support rod assembly comprises an installation plate, a first containing sleeve, a second containing sleeve and an elastic piece. The mounting plate is connected with the first accommodating sleeve, the first accommodating sleeve is provided with a first accommodating groove, the second accommodating sleeve is provided with a second accommodating groove, and the first accommodating sleeve is connected with the second accommodating sleeve in a sliding mode. One end of the elastic piece is contained in the first containing groove, and the other end of the elastic piece is contained in the second containing groove. The bottom frame strip comprises a plurality of sub-chains, the sub-chains are sequentially connected, and two adjacent sub-chains are rotatably connected. The end of each second receiving sleeve is connected with a sub-chain at the extreme end. Above-mentioned unmanned aerial vehicle landing frame has promoted buffering shock attenuation effect, has strengthened the stability ability of parking to unmanned aerial vehicle.

Description

Unmanned aerial vehicle landing frame

Technical Field

The utility model relates to an unmanned aerial vehicle's technical field especially relates to an unmanned aerial vehicle landing frame.

Background

An unmanned aircraft, abbreviated as "drone", and abbreviated in english as "UAV", is an unmanned aircraft that is operated by a radio remote control device and a self-contained program control device, or is operated autonomously, either completely or intermittently, by an onboard computer. Drones tend to be more suitable for tasks that are too "fool, dirty, or dangerous" than are manned aircraft. Unmanned aerial vehicles can be classified into military and civil applications according to the application field. For military use, unmanned aerial vehicles divide into reconnaissance aircraft and target drone. In the civil aspect, the unmanned aerial vehicle + industry is applied, and is really just needed by the unmanned aerial vehicle. At present, the unmanned aerial vehicle is applied to the fields of aerial photography, agriculture, plant protection, miniature self-timer, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, romantic manufacturing and the like, the application of the unmanned aerial vehicle is greatly expanded, and developed countries actively expand industrial application and develop unmanned aerial vehicle technology. The bottom both sides of VTOL unmanned aerial vehicle are provided with the landing frame, have played the absorbing effect of buffering when unmanned aerial vehicle descends. When unmanned aerial vehicle parks on the ground, the landing frame plays the supporting role to the unmanned aerial vehicle body.

However, present unmanned aerial vehicle landing frame, its buffering shock attenuation effect is not good, is difficult to effectively slow down the impact force that unmanned aerial vehicle descending produced. In addition, the ground of the different topography of unable adaptation of landing frame is lower to ground environmental suitability, leads to unmanned aerial vehicle when uneven ground is parked, and the landing frame can't laminate ground for parking stability is low.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an unmanned aerial vehicle landing frame to the not good and technical problem that the stability is low of parking of buffering shock attenuation effect.

The utility model provides an unmanned aerial vehicle landing frame, unmanned aerial vehicle landing frame includes two landing frame devices, two the landing frame device is used for installing in unmanned aerial vehicle bottom both sides respectively. The falling frame device comprises two supporting rod assemblies and an underframe strip, and the two supporting rod assemblies are respectively connected with the underframe strip. The bracing piece subassembly includes that mounting panel, first accommodate the sleeve pipe, second accommodate sleeve pipe and elastic component. The mounting plate is connected with the first accommodating sleeve, the first accommodating sleeve is provided with a first accommodating groove, the second accommodating sleeve is provided with a second accommodating groove, and the first accommodating sleeve is accommodated in the second accommodating groove and is in sliding connection with the second accommodating sleeve. One end of the elastic piece is accommodated in the first accommodating groove and connected with the first accommodating sleeve, and the other end of the elastic piece is accommodated in the second accommodating groove and connected with the second accommodating sleeve. The bottom frame strip comprises a plurality of sub-chains, the sub-chains are sequentially connected, and every two adjacent sub-chains are rotatably connected. The end of each second receiving sleeve is connected with the most terminal subchain.

In one embodiment, the length of the first receiving sleeve is smaller than the depth of the second receiving groove, and the length of the elastic element at the compression limit is smaller than the depth of the second receiving groove.

In one embodiment, the mounting plate is provided with a cushion ring pad disposed around the first receiving sleeve. The buffer ring cushion is used for bearing the impact of the end part of the second containing sleeve.

In one embodiment, the outer side wall of the first receiving sleeve is provided with a limiting sliding strip, the inner wall of the second receiving groove of the second receiving sleeve is provided with a limiting sliding groove, and the limiting sliding strip is received in the limiting sliding groove and is connected with the second receiving sleeve in a sliding manner.

In one embodiment, the resilient member is a compression spring.

In one embodiment, the first receiving sleeve is provided with a first positioning block at the bottom of the first receiving groove, and the first positioning block is embedded into one end of the elastic element.

In one embodiment, a second positioning block is disposed at the bottom of the second receiving groove of the second receiving sleeve, and the second positioning block is embedded into the other end of the elastic element.

In one embodiment, the support rod assembly further includes a telescopic rod, and two ends of the telescopic rod are respectively connected to the first positioning block and the second positioning block.

In one embodiment, the bottom surface of the sub-chain is provided with a plurality of anti-skid convex particles.

In one embodiment, two ends of the elastic member are respectively welded with the first receiving sleeve and the second receiving sleeve.

Above-mentioned unmanned aerial vehicle landing frame supports unmanned aerial vehicle's body through two landing frame devices. Specifically, the buffer, shock absorption and stable supporting effects are realized through the support rod assemblies. Utilize first accept the sleeve pipe and the second accepts the sleeve pipe and accept and install the elastic component, utilize the elastic deformation performance buffering unmanned aerial vehicle impact that produces when descending. Through the sliding connection relation between the first accommodating sleeve and the second accommodating sleeve, the elastic deformation of the elastic piece is adapted. The bottom frame strip abuts against the ground surface to improve the parking stability. Each sub-chain strip is connected each other to rotate to the realization deformability of can buckling, in order to promote the adaptability to different topography, and then make the chassis strip hug closely the ground of different topography. The area of contact of underframe strip and ground is big to unmanned aerial vehicle's parking stability has been promoted, make the side direction cross wind be difficult to blow and rock unmanned aerial vehicle. This unmanned aerial vehicle landing frame has promoted buffering shock attenuation effect, has strengthened the stability ability of parking to unmanned aerial vehicle.

Drawings

Fig. 1 is a schematic structural view of a landing frame of an unmanned aerial vehicle in one embodiment;

FIG. 2 is a schematic cross-sectional view of the structure of the unmanned aerial vehicle landing frame in one embodiment;

FIG. 3 is a schematic cross-sectional view of a portion of the structure of a landing gear of an UAV in one embodiment;

fig. 4 is a schematic view of a partial structure of the unmanned aerial vehicle landing frame in one embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of 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, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Please refer to fig. 1 to 4 together, the utility model provides an unmanned aerial vehicle landing frame 10, unmanned aerial vehicle landing frame 10 includes two landing frame devices 100, and two landing frame devices 100 are used for installing in unmanned aerial vehicle bottom both sides respectively. The drop frame device 100 includes two support rod assemblies 200 and an undercarriage bar 300, and the two support rod assemblies 200 are respectively connected to the undercarriage bar 300. The support rod assembly 200 includes a mounting plate 210, a first receiving sleeve 220, a second receiving sleeve 230, and a resilient member 240. The mounting plate 210 is connected to the first receiving sleeve 220, the first receiving sleeve 220 has a first receiving groove 221, the second receiving sleeve 230 has a second receiving groove 231, and the first receiving sleeve 220 is received in the second receiving groove 231 and slidably connected to the second receiving sleeve 230. One end of the elastic member 240 is received in the first receiving groove 221 and connected to the first receiving sleeve 220, and the other end of the elastic member 240 is received in the second receiving groove 231 and connected to the second receiving sleeve 230. The base frame strip 300 comprises a plurality of sub-chains 310, the sub-chains 310 are connected in sequence, and two adjacent sub-chains 310 are rotatably connected. The end of each second receiving sleeve 230 is connected to a sub-chain 310 at the very end.

Above-mentioned unmanned aerial vehicle landing frame 10 supports unmanned aerial vehicle's body through two landing frame devices 100. Specifically, the supporting rod assemblies 200 achieve the effects of buffering, damping and supporting stably. The first accommodating sleeve 220 and the second accommodating sleeve 230 are used for accommodating and mounting the elastic member 240, and the impact generated when the unmanned aerial vehicle descends is buffered by using the elastic deformation performance of the elastic member 240. The first receiving sleeve 220 and the second receiving sleeve 230 are slidably connected to each other, so that the elastic member 240 is elastically deformed. The parking stability is improved by the abutment of the undercarriage bars 300 against the ground. Each sub-chain 310 is rotatably connected with each other, so that the bending deformation is realized, the adaptive capacity to different terrains is improved, and the chassis strip 300 can be tightly attached to the ground of different terrains. The area of contact of chassis strip 300 and ground is big to unmanned aerial vehicle's parking stability has been promoted, make the side direction cross wind be difficult to blow and rock unmanned aerial vehicle. This unmanned aerial vehicle landing frame 10 has promoted buffering shock attenuation effect, has strengthened the stability can of parking to unmanned aerial vehicle.

The landing frame device 100 is used for being installed in unmanned aerial vehicle bottom both sides respectively to support unmanned aerial vehicle's body. Specifically, the supporting rod assemblies 200 achieve the effects of buffering, damping and supporting stably. The strut assembly 200 is fixed in the bottom of unmanned aerial vehicle through mounting panel 210, and mounting panel 210 still plays the effect of take up and fixed first accommodate sleeve 220. In this embodiment, the mounting plate 210 is welded to the first receiving sleeve 220, so as to ensure the connection firmness of the two. The first receiving sleeve 220 and the second receiving sleeve 230 are used together for receiving the elastic element 240, the first receiving sleeve 220 is connected with the second receiving sleeve 230 in a sliding manner, and the second receiving sleeve 230 slides along the length direction of the first receiving sleeve 220, that is, along the elastic deformation direction of the elastic element 240. The first receiving sleeve 220 and the second receiving sleeve 230 also protect the elastic member 240, and prevent the elastic member 240 from being damaged. Elastic component 240 has played the cushioning effect, and in this embodiment, elastic component 240 is compression spring, and the elastic deformation performance of elastic component 240 has cushioned the impact effect that produces when unmanned aerial vehicle descends.

In order to avoid the elastic element 240 from being compressed excessively to cause structural damage, in one embodiment, the length of the first receiving sleeve 220 is smaller than the depth of the second receiving groove 231, and the length of the elastic element 240 at the compression limit is smaller than the depth of the second receiving groove 231. That is, when the first receiving sleeve 220 slides to the limit value in the second receiving groove 231, since the length of the first receiving sleeve 220 is smaller than the depth of the second receiving groove 231, the front end of the second receiving sleeve 230 will contact the mounting plate 210, and the first receiving sleeve 220 cannot contact the bottom of the second receiving groove 231. The length of the elastic member 240 at the compression limit is smaller than the depth of the second receiving groove 231, that is, no matter how the first receiving sleeve 220 and the second receiving sleeve 230 slide, the elastic member 240 is not excessively pressed by the first receiving sleeve 220 and the second receiving sleeve 230 to cause the elastic structure to be damaged. Thus, the structural stability of the elastic member 240 is ensured, and the working stability of the support rod assembly 200 is ensured.

Further, in order to avoid the front end of the second receiving sleeve 230 colliding with the mounting plate 210 to damage the two, in one embodiment, the mounting plate 210 is provided with a buffering ring pad 211, and the buffering ring pad 211 is disposed around the first receiving sleeve 220. The buffer ring 211 is used to receive the impact of the end of the second receiving sleeve 230. Thus, the cushion ring 211 serves as a cushion and a protection function, and absorbs the impact and collision of the second receiving sleeve 230 to the mounting plate 210. Thus, the front end of the second receiving sleeve 230 is prevented from colliding with the mounting plate 210 to damage the two, and the structural safety of the support rod assembly 200 is ensured.

In order to avoid the rotation between the first receiving sleeve 220 and the second receiving sleeve 230 and ensure the installation stability of the elastic element 240, in one embodiment, a limiting slide bar 222 is disposed on an outer side wall of the first receiving sleeve 220, a limiting slide groove 232 is disposed on an inner wall of the second receiving groove 231 of the second receiving sleeve 230, and the limiting slide bar 222 is received in the limiting slide groove 232 and is slidably connected with the second receiving sleeve 230. The limiting sliding groove 232 limits the limiting sliding strip 222, so that the first accommodating sleeve 220 can only slide along the length direction of the limiting sliding groove 232, and the first accommodating sleeve 220 cannot rotate in the second accommodating groove 231. Thus, the first receiving sleeve 220 and the second receiving sleeve 230 are prevented from rotating, and the installation stability of the elastic member 240 is ensured.

In order to improve the stability of the installation of the elastic member 240, in one embodiment, the first receiving sleeve 220 is provided with a first positioning block 223 at the bottom of the first receiving groove 221, and the first positioning block 223 is embedded into one end of the elastic member 240. The first positioning block 223 has a limiting and fixing function for one end of the elastic member 240. Further, the second receiving sleeve 230 is provided with a second positioning block 233 at the bottom of the second receiving groove 231, and the second positioning block 233 is embedded into the other end of the elastic element 240. The second positioning block 233 has a limiting and fixing function for the other end of the elastic member 240. The first positioning block 223 and the second positioning block 233 jointly stabilize the elastic member 240. Thus, the mounting stability of the elastic member 240 is improved. Further, in one embodiment, two ends of the elastic member 240 are welded to the first receiving sleeve 220 and the second receiving sleeve 230, respectively. Thus, the elastic member 240 cannot be separated from the first receiving sleeve 220 and the second receiving sleeve 230. In this manner, the fixing action of the elastic member 240 is enhanced, and the structural stability of the support rod assembly 200 is improved.

In order to prevent the first receiving sleeve 220 and the second receiving sleeve 230 from being pulled apart, in one embodiment, the support rod assembly 200 further includes a telescopic rod 250, and two ends of the telescopic rod 250 are respectively connected to the first positioning block 223 and the second positioning block 233. The telescopic rod 250 is a mature product in the market, that is, the telescopic rod 250 cannot be extended when both ends of the telescopic rod 250 are pulled to be extended and the telescopic rod 250 reaches the limit of the stroke. Thus, the telescopic pull rod 250 will restrict the first receiving sleeve 220 from continuing to separate from the second receiving sleeve 230. Thus, the first receiving sleeve 220 and the second receiving sleeve 230 are prevented from being pulled apart, and the structural stability of the support rod assembly 200 is ensured.

The undercarriage strip 300 is used for abutting with the ground to improve the stability when the unmanned aerial vehicle parks. Each sub-chain 310 is rotatably connected with each other, so that the bending deformation is realized, the adaptive capacity to different terrains is improved, and the chassis strip 300 can be tightly attached to the ground of different terrains. The area of contact of chassis strip 300 and ground is big to unmanned aerial vehicle's parking stability has been promoted, make the side direction cross wind be difficult to blow and rock unmanned aerial vehicle. In order to further improve the anti-slip performance of the sub-chain 310, in one embodiment, the bottom surface of the sub-chain 310 is provided with a plurality of anti-slip protruding particles 311. The friction coefficient of the sub-chain 310 is improved by the arrangement of the anti-slip convex grains 311. So, strengthened the non-skid property of subchain strip 310, promoted the stability when parking unmanned aerial vehicle.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An unmanned aerial vehicle landing frame, comprising: the two landing frame devices are respectively used for being installed on two sides of the bottom of the unmanned aerial vehicle; the falling frame device comprises two supporting rod assemblies and an underframe strip, and the two supporting rod assemblies are respectively connected with the underframe strip;

the supporting rod assembly comprises a mounting plate, a first containing sleeve, a second containing sleeve and an elastic piece; the mounting plate is connected with the first accommodating sleeve, the first accommodating sleeve is provided with a first accommodating groove, the second accommodating sleeve is provided with a second accommodating groove, and the first accommodating sleeve is accommodated in the second accommodating groove and is in sliding connection with the second accommodating sleeve; one end of the elastic piece is accommodated in the first accommodating groove and connected with the first accommodating sleeve, and the other end of the elastic piece is accommodated in the second accommodating groove and connected with the second accommodating sleeve;

the bottom frame strip comprises a plurality of sub-chains, the sub-chains are sequentially connected, and two adjacent sub-chains are rotationally connected; the end of each second receiving sleeve is connected with the most terminal subchain.

2. The unmanned aerial vehicle landing frame of claim 1, wherein the first receiving sleeve has a length less than a depth of the second receiving slot, and the resilient member has a length less than the depth of the second receiving slot at a compression limit.

3. The unmanned aerial vehicle landing frame of claim 2, wherein the mounting plate is provided with a cushion ring disposed around the first receiving sleeve; the buffer ring cushion is used for bearing the impact of the end part of the second containing sleeve.

4. The unmanned aerial vehicle landing frame of claim 1, wherein the first receiving sleeve has an outer side wall provided with a limiting slide bar, the second receiving sleeve has an inner wall provided with a limiting sliding groove, and the limiting slide bar is received in the limiting sliding groove and slidably connected with the second receiving sleeve.

5. The unmanned aerial vehicle landing frame of claim 1, wherein the resilient member is a compression spring.

6. The unmanned aerial vehicle landing frame of claim 5, wherein the first receiving sleeve is provided with a first positioning block at the bottom of the first receiving groove, and the first positioning block is embedded in one end of the elastic member.

7. The unmanned aerial vehicle landing frame of claim 6, wherein the second receiving sleeve is provided with a second positioning block at the bottom of the second receiving groove, and the second positioning block is embedded into the other end of the elastic member.

8. The unmanned aerial vehicle landing frame of claim 7, wherein the support rod assembly further comprises a telescopic pull rod, and two ends of the telescopic pull rod are connected with the first positioning block and the second positioning block respectively.

9. An unmanned aerial vehicle landing frame according to claim 1, wherein the bottom surface of the sub-chain is provided with a plurality of anti-skid convex particles.

10. The unmanned aerial vehicle landing frame of claim 1, wherein two ends of the elastic member are welded to the first receiving sleeve and the second receiving sleeve, respectively.