Anti-falling device mounted on UAV

Abstract

The present invention provides an anti-falling device for an unmanned aerial vehicle (UAV) suspension, belonging to the technical field of high-altitude operation protection devices. It includes a suspension bracket structure arranged below the UAV and used for hanging on the top of an iron tower. The suspension bracket structure includes a fixed frame and a rotating frame. The rotating frame is rotatably connected to one side of the top of the fixed frame, and the fixed frame and the rotating frame are in a loop structure. A rotating motor for driving the rotating frame to rotate is provided on the fixed frame. A chute is opened inside the fixed frame, and a lifting block is slidably connected in the chute. A lifting assembly is arranged on the fixed frame. The rotating frame includes a connecting frame and a movable frame. The top end of the connecting frame is rotatably connected to the fixed frame, and the top of the movable frame is slidably arranged inside the connecting frame. An automatic connection assembly is arranged between the lower end of the movable frame and the lifting block. By driving the rotating frame to rotate through the rotating motor, the fixed frame and the rotating frame form a loop structure surrounding the iron rod. Then, the lifting block and the movable frame are driven to rise through the lifting assembly until the iron rod is clamped by the fixed frame and the movable frame, improving the stability and safety after the installation of the suspension bracket.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-altitude operation protection devices, and more specifically, relates to an anti-falling device mounted on a drone. Background Art

[0002] The anti-falling device is a protection device used for personnel working at high altitudes on iron towers to be safely suspended in the air in case of falling during climbing, moving, and working. The multi-rotor drone flight platform has the characteristics of strong mobility, high stability, convenient operation, and convenient transportation. For the safety anti-falling of high-altitude power grid operations, using the method of hanging a safety rope by a drone instead of manual hanging by operators can take into account both safety and flexibility, quickly and efficiently.

[0003] At present, the anti-falling device mounted on a drone includes a drone, a mounting bracket connected below the drone, a safety rope connected below the bracket, and an anti-falling self-locking device connected to the safety rope. The mounting bracket has an opening below for hanging on an iron rod. During use, the drone drives the mounting bracket to rise to the top of the iron tower, and the mounting bracket is directly hung on the iron rod. After the operator connects the anti-falling self-locking device, they can start climbing the tower.

[0004] However, after the above-mentioned mounting bracket is hung on the top of the iron tower, it is easily affected by wind factors and shakes, resulting in poor stability and safety. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-falling device mounted on a drone to solve the technical problem in the prior art that after the mounting bracket is hung on the top of the iron tower, it is easily affected by wind factors and shakes, resulting in poor stability and safety.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: providing an anti-falling device mounted on a drone, including a mounting bracket structure arranged below the drone and used for hanging on the top of the iron tower. The mounting bracket structure includes a fixed frame and a rotating frame. The top end of the fixed frame is connected to the drone, and the bottom end of the fixed frame is connected to the safety rope. The rotating frame is rotatably connected to one side of the top of the fixed frame, and the fixed frame and the rotating frame form a loop structure. A rotating motor for driving the rotating frame to rotate is provided on the fixed frame. A chute is vertically opened on the inner side wall of the fixed frame, and a lifting block is slidably connected in the chute. A lifting component for driving the lifting block to slide is arranged on the fixed frame. The rotating frame includes a connecting frame and a movable frame. The top end of the connecting frame is rotatably connected to the fixed frame, and the top of the movable frame is slidably arranged in the connecting frame. An automatic connection component is arranged between the lower end of the movable frame and the lifting block, and the automatic connection component is used to connect and fix the two when the lower end of the movable frame rotates to the position of the lifting block.

[0007] Combined with the above technical solution, in a possible implementation manner, the automatic connection component includes an upper clamping plate, a lower clamping plate, a connecting screw rod and a screw sleeve. A slot is formed on one side of the lifting block facing the movable frame. The upper clamping plate and the lower clamping plate are slidably connected in the slot. The connecting screw rod is vertically rotatably connected in the slot. The connecting screw rod has two threads with opposite helix directions. The upper clamping plate and the lower clamping plate are correspondingly threadedly connected to the threads with different helix directions of the connecting screw rod. The screw sleeve is fixedly embedded at the bottom end of the chute, and the bottom end of the connecting screw rod is threadedly connected to the screw sleeve. When the connecting screw rod is separated from the screw sleeve, the upper clamping plate and the lower clamping plate move closer to each other.

[0008] Combined with the above technical solution, in a possible implementation manner, the connecting screw rod includes a driving screw rod and a ball screw rod that are coaxially fixed. The upper clamping plate and the lower clamping plate are arranged on the driving screw rod. The ball screw rod is located below the driving screw rod, and the ball screw rod and the screw sleeve are in ball screw thread fit.

[0009] Combined with the above technical solution, in a possible implementation manner, the lifting component includes a lifting screw rod and a lifting motor. The lifting screw rod is vertically rotatably connected in the chute. The lifting motor is arranged on the fixed frame. The lifting screw rod is coaxially fixed with the output shaft of the lifting motor. The lifting block is threadedly connected to the lifting screw rod.

[0010] Combined with the above technical solution, in a possible implementation manner, a movable plate is slidably arranged in the connecting frame. The movable plate is located above the movable frame. A traction spring is connected between the movable plate and the movable frame. A linkage mechanism is arranged between the movable plate and the lifting screw rod. The linkage mechanism is used to drive the movable plate to lift in the same direction while the lifting screw rod drives the lifting block to lift and lower.

[0011] Combined with the above technical solution, in a possible implementation manner, the linkage mechanism includes a linkage shaft, a transmission component, a shaft sleeve, a direction-changing component and a linkage component. The linkage shaft is vertically rotatably connected to one end of the fixed frame close to the rotating frame. The transmission component is arranged between the lifting screw rod and the linkage shaft. The transmission component is used to drive the linkage shaft to rotate when the lifting screw rod rotates. The shaft sleeve is horizontally coaxially sleeved on the rotating shaft of the rotating frame, and the shaft sleeve is rotatably connected to the fixed frame. The direction-changing component is arranged between the linkage shaft and the shaft sleeve. The direction-changing component is used to drive the shaft sleeve to rotate when the linkage shaft rotates. The linkage component is arranged between the shaft sleeve and the movable plate. The linkage component is used to drive the movable plate to lift and lower when the shaft sleeve rotates.

[0012] Combined with the above technical solution, in a possible implementation manner, the transmission component is a chain and two sprockets. The two sprockets are coaxially fixed to the lifting screw or the linkage shaft correspondingly, and the chain is sleeved on the two sprockets.

[0013] Combined with the above technical solution, in a possible implementation manner, the direction-changing component is two crossed-axis helical gears. The two crossed-axis helical gears are coaxially fixed to the linkage shaft or the bushing correspondingly, and the two crossed-axis helical gears mesh with each other.

[0014] Combined with the above technical solution, in a possible implementation manner, the linkage assembly includes a linkage gear and a linkage rack. The linkage gear is coaxially fixed to the bushing. One end of the linkage rack is located inside the connection frame and is fixed to the movable plate, and the other end of the linkage rack passes through the connection frame and always meshes with the linkage gear; a separation assembly is arranged between the linkage shaft and the crossed-axis helical gear coaxially connected thereto. The separation assembly is used to release the connection between the linkage shaft and the crossed-axis helical gear when the rotating frame rotates.

[0015] Combined with the above technical solution, in a possible implementation manner, the separation assembly includes a separation rod, a separation electric cylinder, a connecting rod and a reset member. A separation hole is coaxially opened at the top end of the linkage shaft, and the separation rod is slidably arranged in the separation hole. The separation electric cylinder is arranged at the top of the fixed frame and is connected to the separation rod; a connection hole is opened on the inner wall of the separation hole, and a connection groove communicating with the connection hole is opened on the inner peripheral surface of the crossed-axis helical gear. The connecting rod is slidably arranged in the connection hole and the connection groove; the position of the separation rod close to the connection hole is conical, and the separation rod is used to push the end of the connecting rod into the connection groove; the reset member is arranged in the linkage shaft, and the reset member is used to automatically drive the connecting rod out of the connection groove after the separation rod releases the extrusion on the connecting rod.

[0016] The beneficial effect of the drone-mounted anti-falling device provided by the present invention is that: compared with the prior art, after the present invention hangs the mounting bracket structure to the top of the iron tower through the drone, the rotating motor drives the rotating frame to rotate, so that the fixed frame and the rotating frame form a loop structure surrounding the iron rod, forming a preliminary connection; at the same time, the automatic connection component connects and fixes the lower end of the movable frame to the lifting block, and then drives the lifting block to rise through the lifting component. The lifting block drives the movable frame to rise until the iron rod is clamped by the fixed frame and the movable frame, improving the stability and safety after the mounting bracket is installed. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Structural schematic diagram of the anti-falling device mounted on the drone provided by the embodiment of the present invention;

[0019] Figure 2 Vertical sectional view of the anti-falling device mounted on the drone provided by the embodiment of the present invention;

[0020] Figure 3 Partial sectional view of the automatic connection component provided by the embodiment of the present invention;

[0021] Figure 4 Partial structural schematic diagram of the linkage mechanism provided by the embodiment of the present invention;

[0022] Figure 5 Partial sectional view of the linkage mechanism provided by the embodiment of the present invention;

[0023] Figure 6 Partial sectional view of the separation component provided by the embodiment of the present invention.

[0024] Among them, the reference numerals in the figure are as follows:

[0025] 1. Fixed frame; 11. Slide groove; 2. Rotating frame; 21. Connecting frame; 211. Movable plate; 212. Tensile spring; 22. Movable frame; 3. Rotating motor; 4. Lifting block; 41. Slot; 5. Lifting component; 51. Lifting screw; 52. Lifting motor; 6. Automatic connection component; 61. Upper clamping plate; 62. Lower clamping plate; 63. Connecting screw; 631. Driving screw; 632. Ball screw; 64. Nut sleeve; 7. Linkage mechanism; 71. Linkage shaft; 711. Separation hole; 7111. Connection hole; 72. Driving component; 73. Sleeve; 74. Direction-changing component; 741. Intersecting-axis helical gear; 7411. Connection groove; 75. Linkage component; 751. Linkage gear; 752. Linkage rack; 8. Separation component; 81. Separation rod; 82. Separation electric cylinder; 83. Connecting rod; 84. Resetting member. Detailed implementation manners

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0027] It should be further noted that the drawings and embodiments of the present invention mainly describe and explain the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, etc. may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above specific forms and settings in a well-known manner.

[0028] When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] The orientation terms "inside" and "outside" refer to the inside and outside of the contour of each component itself. The terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0030] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways, and corresponding interpretations are made for the spatial relative descriptions used here.

[0031] The terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, and the meaning of "several" is one or more, unless otherwise specifically defined.

[0032] Now, the anti-falling device mounted on the drone provided by the present invention will be described.

[0033] As Figure 1 and Figure 2 shown, an embodiment of the present invention provides an anti-falling device mounted on a drone, including a mounting bracket structure disposed below the drone and used for hanging on the top of a iron tower. The mounting bracket structure includes a fixed frame 1 and a rotating frame 2. The top end of the fixed frame 1 is connected to the drone, and the bottom end of the fixed frame 1 is connected to a safety rope; the rotating frame 2 is rotatably connected to one side of the top of the fixed frame 1, and the fixed frame 1 and the rotating frame 2 are in a loop structure; a rotating motor 3 for driving the rotating frame 2 to rotate is provided on the fixed frame 1; a chute 11 is vertically opened on the inner side wall of the fixed frame 1, and a lifting block 4 is slidably connected in the chute 11. A lifting assembly 5 for driving the lifting block 4 to slide is provided on the fixed frame 1; the rotating frame 2 includes a connecting frame 21 and a movable frame 22. The top end of the connecting frame 21 is rotatably connected to the fixed frame 1, and the top of the movable frame 22 is slidably disposed in the connecting frame 21; an automatic connection assembly 6 is provided between the lower end of the movable frame 22 and the lifting block 4, and the automatic connection assembly 6 is used for connecting and fixing the two when the lower end of the movable frame 22 rotates to the position of the lifting block 4.

[0034] For the anti-falling device mounted on the drone provided in this embodiment, compared with the prior art, after the mounting bracket structure is hung on the top of the iron tower by the drone, the rotating motor 3 drives the rotating frame 2 to rotate, so that the fixed frame 1 and the rotating frame 2 form a loop structure surrounding the iron rod on all sides, forming a preliminary connection; at the same time, the automatic connection assembly 6 connects and fixes the lower end of the movable frame 22 and the lifting block 4, and then the lifting assembly 5 drives the lifting block 4 to rise, and the lifting block 4 drives the movable frame 22 to rise until the iron rod is clamped by the fixed frame 1 and the movable frame 22, improving the stability and safety after the mounting bracket is installed.

[0035] As Figures 2 to 3 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows:

[0036] The automatic connection component 6 includes an upper clamping plate 61, a lower clamping plate 62, a connecting screw rod 63 and a screw sleeve 64. A slot 41 is formed on one side of the lifting block 4 facing the movable frame 22. The upper clamping plate 61 and the lower clamping plate 62 are slidably connected in the slot 41. The connecting screw rod 63 is vertically rotatably connected in the slot 41. The connecting screw rod 63 has two threads with opposite helix directions. The upper clamping plate 61 and the lower clamping plate 62 are correspondingly threadedly connected to the threads with different helix directions of the connecting screw rod 63. The screw sleeve 64 is fixedly embedded at the bottom end of the chute 11. The bottom end of the connecting screw rod 63 is threadedly connected to the screw sleeve 64. When the connecting screw rod 63 is separated from the screw sleeve 64, the upper clamping plate 61 and the lower clamping plate 62 move closer to each other.

[0037] Further, in this embodiment, elastic pads are provided on the opposite surfaces of the upper clamping plate 61 and the lower clamping plate 62. The threads between the upper clamping plate 61 and the connecting screw rod 63 and between the lower clamping plate 62 and the connecting screw rod 63 are both obtuse angle self-locking threads.

[0038] When the rotary motor 3 drives the rotating frame 2 to rotate so that the bottom end of the movable frame 22 is inserted into the slot 41, there is a gap between the upper clamping plate 61 and the lower clamping plate 62 and the movable frame 22. When the lifting assembly 5 drives the lifting block 4 to move upward, the connecting screw rod 63 moves upward relative to the screw sleeve 64 and rotates. At this time, the upper clamping plate 61 and the lower clamping plate 62 move closer to each other. Until the connecting screw rod 63 is separated from the screw sleeve 64, the upper clamping plate 61 and the lower clamping plate 62 are in a state of clamping and fixing the end of the movable frame 22, so as to facilitate the lifting block 4 to drive the movable frame 22 to rise, improving the automatic connection efficiency between the lifting block 4 and the movable frame 22.

[0039] As Figure 3 shown, a specific implementation manner provided by the present invention on the basis of the above embodiment is as follows:

[0040] The connecting screw rod 63 includes a transmission screw rod 631 and a ball screw rod 632 that are coaxially fixed. The upper clamping plate 61 and the lower clamping plate 62 are arranged on the transmission screw rod 631. The ball screw rod 632 is located below the transmission screw rod 631. The ball screw rod 632 and the screw sleeve 64 are in ball screw thread fit.

[0041] The cooperation between the ball screw rod 632 and the screw sleeve 64 can reduce the friction between the two, making the rotation of the connecting screw rod 63 smoother.

[0042] As Figures 1 to 2 shown, a specific implementation manner provided by the present invention on the basis of the above embodiment is as follows:

[0043] The lifting assembly 5 includes a lifting screw rod 51 and a lifting motor 52. The lifting screw rod 51 is vertically rotatably connected in the chute 11. The lifting motor 52 is arranged on the fixed frame 1. The lifting screw rod 51 is coaxially fixed with the output shaft of the lifting motor 52. The lifting block 4 is threadedly connected to the lifting screw rod 51.

[0044] Start the lifting motor 52 to rotate the lifting screw 51. The lifting screw 51 drives the lifting block 4 to slide in the chute 11, improving the lifting efficiency of the lifting block 4.

[0045] As Figure 2 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows:

[0046] A movable plate 211 is slidably arranged in the connection frame 21. The movable plate 211 is located above the movable frame 22. A traction spring 212 is connected between the movable plate 211 and the movable frame 22. A linkage mechanism 7 is arranged between the movable plate 211 and the lifting screw 51. The linkage mechanism 7 is used to drive the movable plate 211 to lift in the same direction while the lifting screw 51 drives the lifting block 4 to lift.

[0047] Since there is a certain distance between the automatic connection part of the movable frame 22 and the lifting block 4 and the sliding connection part of the movable frame 22 and the connection frame 21, when the lifting assembly 5 drives the bottom end of the movable frame 22 to rise through the lifting block 4, the linkage mechanism 7 drives the movable plate 211 to rise, so that the traction spring 212 applies an upward pulling force to the top end of the movable frame 22, improving the overall upward rising effect of the movable frame 22. Similarly, when the lifting assembly 5 drives the lifting block 4 to descend, the linkage mechanism 7 drives the movable plate 211 to descend, so that the traction spring 212 applies a downward pressure to the top end of the movable frame 22, improving the overall downward descending effect of the movable frame 22.

[0048] As Figure 2 、 Figure 4 and Figure 5 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows:

[0049] The linkage mechanism 7 includes a linkage shaft 71, a transmission component 72, a bushing 73, a direction-changing component 74 and a linkage assembly 75. The linkage shaft 71 is vertically rotatably connected to one end of the fixed frame 1 close to the rotating frame 2. The transmission component 72 is arranged between the lifting screw 51 and the linkage shaft 71. The transmission component 72 is used to drive the linkage shaft 71 to rotate when the lifting screw 51 rotates; the bushing 73 is horizontally coaxially sleeved on the rotating shaft of the rotating frame 2. The bushing 73 is rotatably connected to the fixed frame 1; the direction-changing component 74 is arranged between the linkage shaft 71 and the bushing 73. The direction-changing component 74 is used to drive the bushing 73 to rotate when the linkage shaft 71 rotates; the linkage assembly 75 is arranged between the bushing 73 and the movable plate 211. The linkage assembly 75 is used to drive the movable plate 211 to lift when the bushing 73 rotates.

[0050] When the lifting motor 52 drives the lifting screw 51 to rotate, the lifting screw 51 drives the linkage shaft 71 to rotate through the transmission component 72. The linkage shaft 71 drives the sleeve 73 to rotate through the direction-changing component 74. The sleeve 73 drives the movable plate 211 to lift through the linkage assembly 75, without the need to additionally increase the power source, improving the following lifting efficiency of the movable plate 211.

[0051] As Figure 2 shown, a specific implementation manner further provided by the present invention on the basis of the above embodiment is as follows:

[0052] The transmission component 72 is a chain and two sprockets. The two sprockets are coaxially fixed on the lifting screw 51 or the linkage shaft 71 correspondingly, and the chain is sleeved on the two sprockets.

[0053] When the lifting screw 51 rotates, it drives the linkage shaft 71 to rotate through the sprocket and the chain, improving the transmission efficiency between the lifting screw 51 and the linkage shaft 71.

[0054] As Figure 2 、 Figure 4 and Figure 5 shown, a specific implementation manner further provided by the present invention on the basis of the above embodiment is as follows:

[0055] The direction-changing component 74 is two crossed-axis helical gears 741. The two crossed-axis helical gears 741 are coaxially fixed on the linkage shaft 71 or the sleeve 73 correspondingly, and the two crossed-axis helical gears 741 mesh with each other.

[0056] When the linkage shaft 71 rotates, it drives the sleeve 73 to rotate through the two crossed-axis helical gears 741, improving the transmission efficiency between the linkage shaft 71 and the sleeve 73.

[0057] As Figure 2 、 Figure 4 and Figure 5 shown, a specific implementation manner further provided by the present invention on the basis of the above embodiment is as follows:

[0058] The linkage assembly 75 includes a linkage gear 751 and a linkage rack 752. The linkage gear 751 is coaxially fixed on the sleeve 73. One end of the linkage rack 752 is located inside the connection frame 21 and is fixed to the movable plate 211. The other end of the linkage rack 752 passes through the connection frame 21 and always meshes with the linkage gear 751. A separation assembly 8 is provided between the linkage shaft 71 and the crossed-axis helical gear 741 coaxially connected thereto. The separation assembly 8 is used to release the connection between the linkage shaft 71 and the crossed-axis helical gear 741 when the rotating frame 2 rotates.

[0059] When the bushing 73 rotates, it drives the linkage gear 751 to rotate. The linkage gear 751 drives the linkage rack 752 to move up and down, improving the lifting efficiency of the movable plate 211. Before the rotating motor 3 drives the rotating frame 2 to rotate, the separation assembly 8 first releases the connection between the linkage shaft 71 and the cross-axis helical gear 741. Since the axis of the linkage gear 751 is collinear with the rotation axis of the rotating frame 2, when the linkage rack 752 rotates around the rotation axis of the rotating frame 2, it will drive the linkage gear 751 to rotate accordingly. The linkage gear 751 drives the bushing 73 and the two cross-axis helical gears 741 to rotate. The separation of the connection between the linkage shaft 71 and the cross-axis helical gear 741 enables the linkage shaft 71 and the lifting screw 51 not to rotate, improving the overall operation stability.

[0060] As Figures 5 to 6 shown, on the basis of the above embodiments, the present invention further provides a specific embodiment as follows:

[0061] The separation assembly 8 includes a separation rod 81, a separation electric cylinder 82, a connecting rod 83 and a reset member 84. A separation hole 711 is coaxially opened at the top end of the linkage shaft 71. The separation rod 81 is slidably arranged in the separation hole 711. The separation electric cylinder 82 is arranged on the top of the fixed frame 1 and connected to the separation rod 81. A connection hole 7111 is opened on the inner wall of the separation hole 711. A connection groove 7411 communicating with the connection hole 7111 is opened on the inner peripheral surface of the cross-axis helical gear 741. The connecting rod 83 is slidably arranged in the connection hole 7111 and the connection groove 7411. The position of the separation rod 81 close to the connection hole 7111 is conical. The separation rod 81 is used to push the end of the connecting rod 83 into the connection groove 7411. The reset member 84 is arranged in the linkage shaft 71. The reset member 84 is used to automatically drive the connecting rod 83 to disengage from the connection groove 7411 after the separation rod 81 releases the extrusion of the connecting rod 83.

[0062] Before the rotating motor 3 drives the rotating frame 2 to rotate, first start the separation electric cylinder 82 to drive the separation rod 81 to slide. The conical part of the separation rod 81 gradually cancels the extrusion of the connecting rod 83. The reset member 84 drives the connecting rod 83 to automatically disengage from the connection groove 7411, realizing the connection separation between the linkage shaft 71 and the cross-axis helical gear 741. After the rotating frame 2 rotates, the separation electric cylinder 82 drives the separation rod 81 to slide again to squeeze the connecting rod 83 again until the connecting rod 83 is inserted into the connection groove 7411, realizing the reconnection between the linkage shaft 71 and the cross-axis helical gear 741, improving the switching efficiency of the linkage state between the linkage shaft 71 and the corresponding cross-axis helical gear 741.

[0063] Specifically, in this embodiment, the reset member 84 includes a connection block and a spring. A reset groove is opened on one side of the connection hole 7111. The connection block and the spring are both arranged in the reset groove. The connection block is fixed to the connecting rod 83. When the spring is in a natural state, the connecting rod 83 is in a separated state from the connection groove 7411.

[0064] Further, in this embodiment, a mobile power source can be installed on the fixing frame 1 to supply power to the rotating motor 3, the lifting motor 52, and the separating cylinder 82.

[0065] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0067] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A UAV mounting anti-falling device, comprising a mounting bracket structure arranged below the UAV and used to be mounted on the top of an iron tower, characterized in that: The mounting bracket structure comprises a fixed frame (1) and a rotating frame (2); the top end of the fixed frame (1) is connected to the drone, and the bottom end of the fixed frame (1) is connected to a safety rope; the rotating frame (2) is rotatably connected to one side of the top of the fixed frame (1), and the fixed frame (1) and the rotating frame (2) are in a circular structure; the fixed frame (1) is provided with a rotating motor (3) for driving the rotating frame (2) to rotate; the inner side wall of the fixed frame (1) is vertically provided with a sliding groove (11), and a lifting block (4) is slidably connected in the sliding groove (11), and the fixed frame (1) is provided with a lifting assembly (5) for driving the lifting block (4) to slide; the rotating frame (2) comprises a connecting frame (21) and a movable frame (22); the top of the connecting frame (21) is rotatably connected to the fixed frame (1), and the top of the movable frame (22) is slidably arranged in the connecting frame (21); an automatic connecting assembly (6) is provided between the lower end of the movable frame (22) and the lifting block (4), and the automatic connecting assembly (6) is used to connect and fix the two when the lower end of the movable frame (22) rotates to the lifting block (4); The lifting assembly (5) comprises a lifting screw (51) and a lifting motor (52), wherein the lifting screw (51) is vertically rotatably connected in the slide groove (11), the lifting motor (52) is arranged on the fixed frame (1), the lifting screw (51) and the output shaft of the lifting motor (52) are coaxially fixed, and the lifting block (4) is threadedly connected to the lifting screw (51); A movable plate (211) is slidably arranged in the connection frame (21), the movable plate (211) is located above the movable frame (22), a traction spring (212) is connected between the movable plate (211) and the movable frame (22), a linkage mechanism (7) is arranged between the movable plate (211) and the lifting screw (51), and the linkage mechanism (7) is used to drive the movable plate (211) to be lifted in the same direction while the lifting screw (51) drives the lifting block (4) to be lifted; The linkage mechanism (7) comprises a linkage shaft (71), a transmission component (72), a shaft sleeve (73), a direction-changing component (74) and a linkage assembly (75); the linkage shaft (71) is vertically rotatably connected to one end of the fixed frame (1) near the rotating frame (2); the transmission component (72) is arranged between the lifting screw (51) and the linkage shaft (71); the transmission component (72) is used to drive the linkage shaft (71) to rotate when the lifting screw (51) rotates; the shaft sleeve (73) is horizontally coaxial with the shaft sleeve The shaft sleeve (73) is arranged on the rotating shaft of the rotating frame (2), and is rotatably connected to the fixed frame (1); the direction-changing component (74) is arranged between the linkage shaft (71) and the shaft sleeve (73), and is used to drive the shaft sleeve (73) to rotate when the linkage shaft (71) rotates; the linkage assembly (75) is arranged between the shaft sleeve (73) and the movable plate (211), and is used to drive the movable plate (211) to rise and fall when the shaft sleeve (73) rotates.

2. The anti-fall device mounted on a drone as claimed in claim 1, characterized in that: The automatic connection component (6) comprises an upper clamping plate (61), a lower clamping plate (62), a connecting screw (63) and a screw sleeve (64); a slot (41) is provided on a side of the lifting block (4) facing the movable frame (22); the upper clamping plate (61) and the lower clamping plate (62) are slidably connected in the slot (41); the connecting screw (63) is vertically rotatably connected in the slot (41); the connecting screw (63) has two sections of threads with opposite rotation directions; the upper clamping plate (61) and the lower clamping plate (62) are correspondingly threadedly connected to the threads of the connecting screw (63) with different rotation directions; the screw sleeve (64) is fixedly embedded in the bottom end of the sliding groove (11); the bottom end of the connecting screw (63) is threadedly connected to the screw sleeve (64); when the connecting screw (63) is separated from the screw sleeve (64), the upper clamping plate (61) and the lower clamping plate (62) move closer to each other.

3. The anti-fall device mounted on a drone as claimed in claim 2, characterized in that: The connecting screw (63) comprises a transmission screw (631) and a ball screw (632) which are coaxially fixed, the upper clamping plate (61) and the lower clamping plate (62) are arranged on the transmission screw (631), the ball screw (632) is located below the transmission screw (631), and the ball screw (632) and the screw sleeve (64) are ball thread matched.

4. The anti-fall device mounted on a drone as claimed in claim 1, characterized in that: The transmission component (72) is a chain and two sprockets. The two sprockets are coaxially fixed on the lifting screw (51) or the linkage shaft (71), and the chain is sleeved on the two sprockets.

5. The anti-fall device mounted on a drone as claimed in claim 1, characterized in that: The direction-changing component (74) is two staggered-axis bevel gears (741), and the two staggered-axis bevel gears (741) are correspondingly coaxially fixed on the linkage shaft (71) or the shaft sleeve (73), and the two staggered-axis bevel gears (741) are meshed with each other.

6. The anti-fall device mounted on a drone as claimed in claim 5, characterized in that: The linkage assembly (75) comprises a linkage gear (751) and a linkage rack (752); the linkage gear (751) is coaxially fixed on the shaft sleeve (73); one end of the linkage rack (752) is located in the connection frame (21) and is fixed to the movable plate (211); the other end of the linkage rack (752) passes through the connection frame (21) and is always meshed with the linkage gear (751); a separation assembly (8) is provided between the linkage shaft (71) and the staggered axis bevel gear (741) coaxially connected thereto; the separation assembly (8) is used to release the connection between the linkage shaft (71) and the staggered axis bevel gear (741) when the rotating frame (2) rotates.

7. The anti-fall device mounted on a drone as claimed in claim 6, characterized in that: The separation assembly (8) comprises a separation rod (81), a separation electric cylinder (82), a connecting rod (83) and a reset member (84); a separation hole (711) is coaxially provided at the top of the linkage shaft (71); the separation rod (81) is slidably arranged in the separation hole (711); the separation electric cylinder (82) is arranged at the top of the fixing frame (1) and is connected to the separation rod (81); a connecting hole (7111) is provided on the inner wall of the separation hole (711); and a connecting groove (741) connected to the connecting hole (7111) is provided on the inner circumference of the staggered axis bevel gear (741). 1), the connecting rod (83) is slidably arranged in the connecting hole (7111) and the connecting groove (7411); the position of the separation rod (81) close to the connecting hole (7111) is conical, and the separation rod (81) is used to push the end of the connecting rod (83) into the connecting groove (7411); the reset member (84) is arranged in the linkage shaft (71), and the reset member (84) is used to automatically drive the connecting rod (83) to disengage from the connecting groove (7411) after the separation rod (81) releases the squeezing of the connecting rod (83).

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