CN218641066U

CN218641066U - Butt joint device and overhead line inspection system

Info

Publication number: CN218641066U
Application number: CN202222427168.3U
Authority: CN
Inventors: 刘恒
Original assignee: Fengyi Technology Shenzhen Co ltd
Current assignee: Fengyi Technology Shenzhen Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-03-17
Anticipated expiration: 2032-09-13

Abstract

The utility model provides a docking device and overhead line system of patrolling and examining, docking device includes docking mechanism and buffer gear, buffer gear includes the telescopic link, the dwang, first elastic component and a spacing section of thick bamboo, through at the telescopic link, and set up first elastic component between the dwang, first elastic component sets up in a spacing section of thick bamboo, a spacing section of thick bamboo pot head is established on the second link, the other end and the fourth link fixed connection of a spacing section of thick bamboo, thereby make buffer gear can produce certain elastic deformation under the exogenic action. When needing unmanned aerial vehicle and overhead line butt joint to make unmanned aerial vehicle can closely inspect the overhead line, be fixed in the interfacing apparatus in this application on unmanned aerial vehicle, realize the butt joint of unmanned aerial vehicle and overhead line through docking mechanism, and buffer gear can be under the effort that the butt joint process produced take place elastic deformation of adaptability to avoid or reduce external force and produce the interference to unmanned aerial vehicle, be favorable to improving the stability of unmanned aerial vehicle and overhead line butt joint process.

Description

Butt joint device and overhead line inspection system

Technical Field

The application relates to the technical field of overhead line maintenance, in particular to a butt joint device and an overhead line inspection system.

Background

With the development of the industry in China, the requirement on the reliability of a power grid is higher and higher. The transmission line is the main component of the power grid, and in order to improve the reliability of the power grid, the transmission line needs to be regularly checked and maintained. The transmission line is divided into an overhead line transmission line and a cable transmission circuit, and the overhead line transmission line is higher than the ground, and generally comprises a plurality of stranded wires, so that the inspection operation of the overhead line is difficult.

At present, the overhead line is mainly inspected through taking a picture on the ground or aerial photography by an unmanned aerial vehicle, and whether the overhead line has a fault (for example, a broken strand) is judged according to a shot data image. However, in the existing method, no matter whether the overhead line is shot on the ground or the unmanned aerial vehicle is shot by air, the problems of low polling efficiency, not clear shot pictures, incapability of obtaining full-angle data images of the overhead line and the like still exist due to the fact that the shooting distance is long and the shooting angle is limited, and therefore the problems that whether the overhead line is stranded or not and the number of stranded strands is difficult to accurately judge are caused. The problem of whether have the trouble for solving the above-ground shooting or shooting distance when unmanned aerial vehicle takes photo by plane and leading to very difficult accurate judgement overhead line far away also has some to be used for the robot that patrols and examines of overhead line at present, patrols and examines and installs the camera on the robot. During operation, the inspection robot needs to be installed on the overhead line, and crawls along the overhead line to acquire the data image of the overhead line at a short distance. However, the precision requirement of the robot is high, the inspection cost is high, the quality of the robot is generally heavy, the robot needs to be installed on an overhead line during the working process of the robot, physical contact exists, the overhead line needs to bear the weight of the robot, the risk of damaging the overhead line exists, meanwhile, the heavy robot needs to be installed on the overhead line in an artificial high altitude mode, and the high altitude installation operation of the robot also has great potential safety hazards.

Therefore, a device for close-range inspection of overhead lines in cooperation with an unmanned aerial vehicle is needed.

SUMMERY OF THE UTILITY MODEL

The application provides a interfacing apparatus and overhead line system of patrolling and examining, this interfacing apparatus are used for the butt joint of unmanned aerial vehicle and overhead line to cooperation unmanned aerial vehicle carries out closely inspection overhead line.

In one aspect, the present application provides a docking device, comprising: a docking mechanism and a buffer mechanism;

the butt joint mechanism comprises a mounting frame and a butt joint assembly, and the butt joint assembly is fixed on the mounting frame and is used for being connected with an overhead line;

the buffer mechanism comprises a telescopic rod, a rotating rod, a first elastic part and a limiting cylinder; the telescopic rod is provided with a first connecting end and a second connecting end, and the first connecting end is used for being connected with the mounting frame; the rotating rod is provided with a third connecting end and a fourth connecting end, the third connecting end is used for being connected with the unmanned aerial vehicle, and the second connecting end and the fourth connecting end are arranged oppositely; one end of the limiting cylinder is sleeved on the second connecting end, and the other end of the limiting cylinder is fixedly connected with the fourth connecting end; the first elastic piece is arranged in the limiting cylinder, one end of the first elastic piece is abutted to the second connecting end, and the other end of the first elastic piece is abutted to the fourth connecting end.

In some embodiments of the present application, the buffer mechanism further includes a second elastic member, the second connecting end is provided with a limiting portion, one end of the second elastic member abuts against the inner side surface of the limiting portion, and the other end of the second elastic member abuts against one end of the limiting barrel far away from the fourth connecting end.

In some embodiments of the present application, the limiting cylinder is clamped or screwed with the fourth connecting end.

In some embodiments of the present application, the number of the buffer mechanisms is 2, and one buffer mechanism is disposed on each of two sides of the docking mechanism.

In some embodiments of the present application, the mounting bracket includes a top plate and 2 connecting portions, both ends of the top plate are provided with one connecting portion, the docking assembly includes at least one jaw, the jaw is disposed between the 2 connecting portions, and the jaw is used for being connected with an overhead line.

In some embodiments of the present application, the docking assembly further includes a driving member, the connecting portion has a channel, the jaw includes a jaw body and a jaw connecting portion, the jaw connecting portion is fixedly connected, and one end of the jaw connecting portion, which is far away from the jaw body, passes through the channel and is connected with the driving member.

In some embodiments of this application, the driving piece set up in the roof is kept away from one side of jack catch, the butt joint subassembly still includes link assembly, link assembly's one end is rotated and is connected the jack catch connecting portion, link assembly's the other end is connected the output of driving piece, the driving piece can drive link assembly drives the jack catch body rotates.

In some embodiments of the present application, the docking assembly further includes a limiting member, the limiting member is disposed on the connecting portion and located outside the channel, and a length of the limiting member is greater than a width of the channel.

In some embodiments of the present application, the docking device further includes a first camera and a second camera, the first camera is used for acquiring a distance between the docking assembly and the overhead line in a first direction, the second camera is used for acquiring a distance between the docking assembly and the overhead line in a second direction, wherein the first direction and the second direction are different directions.

This application on the other hand provides an overhead line system of patrolling and examining based on unmanned aerial vehicle, the system of patrolling and examining includes unmanned aerial vehicle and foretell interfacing apparatus, interfacing apparatus is fixed in on the unmanned aerial vehicle.

The embodiment of the application provides a docking device includes docking mechanism and buffer gear, buffer gear includes the telescopic link, the dwang, first elastic component and a spacing section of thick bamboo, through at the telescopic link, and set up first elastic component between the dwang, first elastic component sets up in a spacing section of thick bamboo, a pot head of a spacing section of thick bamboo is established on the second connecting end, the other end and the fourth connecting end fixed connection of a spacing section of thick bamboo to make buffer gear can produce certain elastic deformation under the exogenic action. When needing unmanned aerial vehicle and overhead line butt joint to make unmanned aerial vehicle can closely inspect the overhead line, be fixed in the interfacing apparatus in this application on unmanned aerial vehicle, realize the butt joint of unmanned aerial vehicle and overhead line through docking mechanism, and buffer gear can be under the effort that the butt joint process produced take place elastic deformation of adaptability to avoid or reduce external force and produce the interference to unmanned aerial vehicle, be favorable to improving the stability of unmanned aerial vehicle and overhead line butt joint process.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a docking device provided in the embodiments of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an exploded view of the cushioning assembly of FIG. 1;

fig. 4 is a schematic structural diagram of an embodiment of an overhead line inspection system provided in the embodiment of the present application.

Reference numerals are as follows: the overhead line inspection system 500, the docking mechanism 510, the accommodating cavity 511, the opening 512, the mounting frame 513, the top plate 5131, the skirt 5131a, the connecting portion 5132, the channel 5133, the first jaw 514, the jaw body 5141, the jaw connecting portion 5142, the second jaw 515, the driving member 516, the connecting rod assembly 517, the rocker 5171, the connecting rod 5172, the kidney-shaped hole 5172a, the landing gear 520, the mounting table 521, the supporting leg 522, the unmanned aerial vehicle 530, the maintenance mechanical arm 540, the buffer mechanism 550, the buffer assembly 551, the telescopic rod 5511, the first connecting end 5511a, the second connecting end 5511b, the limiting cylinder 5512, the rotating rod 5513, the third connecting end 5513b, the fourth connecting end 5513a, the first elastic member 5514, the second elastic member 5515, the limiting portion 5516, the first camera 560 and the second camera 570.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection 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", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The embodiment of the application provides a docking device and an overhead line inspection system. Docking assembly in this application can be used for the butt joint of unmanned aerial vehicle and overhead line, makes unmanned aerial vehicle can maintain closely overhauing the overhead line, explains in detail respectively below.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of a docking device according to an embodiment of the present disclosure, and fig. 2 is a partially enlarged view of a portion a in fig. 1. The docking apparatus in the embodiment of the present application includes a docking mechanism 510 and a buffer mechanism 550. The docking mechanism 510 is used for connecting with an overhead line, and the buffer mechanism 550 is used for providing a buffer protection effect during the docking process of the docking mechanism 510 and the overhead line. The buffer mechanism 550 includes at least one buffer assembly 551. It should be noted that the number of the buffer assemblies 551 can be set according to specific situations, for example, the number of the buffer assemblies 551 can be 1, 2, 3, or N, and is not limited herein. In the embodiment of the present application, the buffering mechanism 550 includes a plurality of buffering assemblies 551, and the structures of the plurality of buffering assemblies 551 may be the same or different. Illustratively, the buffer mechanism 550 includes a plurality of buffer assemblies 551, and the plurality of buffer assemblies 551 are uniformly disposed on both sides of the docking mechanism 510.

Further, referring to fig. 1 and 3, fig. 3 is an exploded view of the buffering assembly in fig. 1. The buffering assembly 551 includes a telescopic rod 5511, a rotating rod 5513, a first elastic member 5514, and a limiting cylinder 5512. The telescoping pole 5511 has a first connection end 5511a and a second connection end 5511b, the first connection end 5511a for connection with the mounting bracket 513 (discussed in more detail below). Dwang 5513 has third link 5513b and fourth link 5513a, and third link 5513b is used for being connected with unmanned aerial vehicle 530, and second link 5511b sets up with fourth link 5513a relatively. One end of the limiting cylinder 5512 is sleeved on the second connection end 5511b, and the other end of the limiting cylinder 5512 is fixedly connected with the fourth connection end 5513 a. The first elastic element 5514 is disposed in the position-limiting cylinder 5512, one end of the first elastic element 5514 abuts against the second connection end 5511b, and the other end of the first elastic element 5514 abuts against the fourth connection end 5513 a.

It should explain, interfacing apparatus in this application is used for unmanned aerial vehicle and overhead line at the in-process of aerial butt joint, because interfacing apparatus fixes on unmanned aerial vehicle, receives the control of unmanned aerial vehicle flight precision, the butt joint subassembly can take place slight collision with the overhead line butt joint in-process, if the effort that this collision produced directly transmits to unmanned aerial vehicle on, lead to unmanned aerial vehicle out of control easily, consequently need set up buffer gear 550 in interfacing apparatus and protect. It can be understood that, when the expansion link 5511 is subjected to a tensile force or a compressive force during the collision of the docking mechanism 510 with the overhead line, the first elastic member 5514 can be elastically deformed under the applied force, and the length of the buffer assembly 551 is correspondingly changed, so that the buffer mechanism 550 has a buffer protection effect.

Further, the buffering mechanism 550 further includes a second elastic element 5515, the second connecting end 5511b is provided with a limiting portion 5516, and one end of the second elastic element 5515 abuts against an inner end surface (i.e., a surface close to the second elastic element 5515) of the limiting portion 5516. The other end of the second elastic element 5515 abuts against the end far from the fourth connection end 5513a, for example, one end of the second elastic element 5515 abuts against the end of the limiting cylinder 5512 far from the fourth connection end 5513a, but of course, a limiting element may be disposed on the inner wall of the limiting cylinder 5512, and one end of the second elastic element 5515 abuts against the limiting element. The limiting portion 5516 may be an annular boss, or a limiting block is not limited herein. It can be understood that the second elastic member 5515 is disposed in the buffering mechanism 550, which is beneficial to increase the stroke range of the telescopic rod 5511, and the telescopic rod 5511 can extrude the first elastic member 5514 and the second elastic member 5515 in the telescopic direction, so that the buffering mechanism has a better buffering protection effect.

Further, the limiting cylinder 5512 is connected with the fourth connection end 5513a in a clamping or threaded manner. For example, a first thread may be disposed on an inner sidewall of the limiting cylinder 5512 near one end of the rotating rod 5513, a second thread matched with the first thread may be disposed on the fourth connecting end 5513a, and the limiting cylinder 5512 and the rotating rod 5513 may be fixedly connected through the matching of the first thread and the second thread, and the telescopic rod 5511 and the rotating rod 5513 may be elastically connected.

Referring to fig. 2, in the present embodiment, the docking mechanism 510 includes a mounting frame 513 and at least one docking assembly. Wherein, the docking assembly is fixed on the mounting frame 513, and the docking assembly is used for being connected with an overhead line. When unmanned aerial vehicle 530 need closely overhaul the operation to the overhead line, be fixed in unmanned aerial vehicle 530 with the interfacing apparatus in this application on, be connected in the air with the overhead line through the butt joint subassembly to make unmanned aerial vehicle 530 and overhead line can maintain at nearer distance, so that overhaul the operation to the overhead line.

Further, the mounting frame 513 includes a top plate 5131 and 2 connecting portions 5132. Both ends of the top plate 5131 are provided with a connecting portion 5132. The top plate 5131 and the connecting portion 5132 may be formed integrally or by welding, and are not limited thereto. The docking assembly includes at least one jaw provided between the 2 connection portions 5132, the jaw being used for connection with an overhead line. Illustratively, the number of the jaws may be 1, 2, 3, or N, which is not limited herein. In the embodiment of the present application, the docking assembly includes a first jaw 514 and a second jaw 515, and the first jaw 514 and the second jaw 515 enclose to form a receiving cavity 511. An opening 512 is formed between the tail ends of the first claw 514 and the second claw 515, the opening 512 is communicated with the accommodating cavity 511, and the overhead line can enter and exit the accommodating cavity 511 through the opening 512. When the drone 530 is in a docked state with the overhead line, the overhead line is located in the accommodating cavity 511, that is, the jaws are in a connected state with the overhead line. The first jaw 514 and the second jaw 515 are rotatably disposed on the top plate 5131, and the first jaw 514 and the second jaw 515 are disposed between the 2 connection portions 5132. It should be noted that the first latch 514 and the second latch 515 are rotatably disposed on the top plate 5131, which is a conventional technology in the art, for example, a rotating shaft is disposed at an upper end of the first latch 514, and a mounting hole adapted to the rotating shaft is disposed on the skirt 5131a of the top plate 5131, which is not limited herein. The first jaw 514 and the second jaw 515 may have the same or different structures, and are not limited herein. It can be understood that, in this embodiment, the mounting frame 513 is substantially shaped like a Chinese character 'ji', and the claws are disposed between the 2 connecting portions 5132, so as to effectively protect the claws and improve the stability of the docking device.

Further, the docking assembly further includes a driving member 516, and the connecting portion 5132 is provided with a channel 5133. Taking the first jaw 514 as an example, the first jaw 514 includes a fixedly connected jaw body 5141 and a jaw connecting portion 5142, and one end of the connecting portion 5142 far from the jaw body 5141 passes through the channel 5133 to be connected with the driving member 516. The driving member 516 acts on the connecting portion 5142 to rotate the jaw body 5141, thereby changing the size of the opening 512. It can be understood that, in this embodiment, by opening the channel 5133 at the connecting portion 5132, the end of the connecting portion 5142 far from the claw body 5141 passes through the channel 5133 to be connected with the driving element 516, which is beneficial to reducing the mass of the mounting frame, improving the working time of the drone, and making the docking mechanism 510 more compact.

Further, the driving piece 516 is arranged on one side, away from the clamping jaw, of the top plate 5131, the butt joint assembly further comprises a connecting rod assembly 517, one end of the connecting rod assembly 517 is rotated to be connected with the clamping jaw, the other end of the connecting rod assembly 517 is connected with the output end of the driving piece 516, and the driving piece 516 can drive the connecting rod assembly 517 to drive the clamping jaw to rotate. Specifically, the driving member 516 is fixed on a surface of the top plate 5131 facing away from the jaws, and one end of the connecting rod assembly 517 rotates the connecting part 5142 away from one end of the jaw body 5141. Specifically, the link assembly 517 includes a rocker arm 5171 and a link 5172. One end of the link 5172 is formed with a kidney-shaped hole 5172a, and the kidney-shaped hole 5172a extends along the length direction of the link 5172. One end of the rocker arm 5171 is connected with the output end of the driving member 516, the other end of the rocker arm 5171 is rotatably connected with one end of the connecting rod 5172 through the kidney-shaped hole 5172a, and the other end of the connecting rod 5172 is rotatably connected with the connecting part 5142.

Further, the docking assembly further includes a limiting member 518, the limiting member 518 is disposed on the connecting portion 5142 and is located outside the connecting portion 5132 (on a side of the connecting portion 5132 away from the accommodating cavity 511), and a length of the limiting member 518 is greater than a width of the channel 5133. Specifically, the limiting member 518 is a pin, and the limiting member 518 is disposed at a middle position of the connecting portion 5142. In this embodiment, by providing the position-limiting member 518, and the position-limiting member 518 is located outside the connecting portion 5132, the length of the position-limiting member 518 is greater than the width of the channel 5133. When the driving element 516 acts on the connecting part 5142 and rotates the first jaw 514 and the second jaw 515 towards a direction approaching to each other, the size of the opening 512 gradually decreases, and after the driving element 516 rotates to a preset angle, the limiting element 518 abuts against the outer side of the connecting part 5132 so as to limit the rotating range of the first jaw 514 and the second jaw 515, thereby controlling the minimum distance of the opening 512 formed between the end parts of the first jaw 514 and the second jaw 515, so that when the driving element 516 fails, a release force can be applied to the first jaw 514 and/or the second jaw 515 by an overhead line when the unmanned aerial vehicle 530 vertically climbs, and the safety release of the butt joint mechanism 510 of the overhead line in an emergency state is ensured.

Further, the docking device further includes a first camera 560 and a second camera 570, the first camera 560 is configured to obtain a distance between the docking component and the overhead line in a first direction, and the second camera 570 is configured to obtain a distance between the docking component and the overhead line in a second direction, where the first direction and the second direction are different directions. Specifically, the first camera 560 is disposed right above the docking assembly, and the first direction may be a horizontal direction; the second camera 570 is disposed right to the left of the docking assembly, and the second direction may be a vertical direction. Of course, in other embodiments of the present application, the docking device may further include 1 or 3 cameras, which is not limited herein.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of an overhead line inspection system provided in the present application. Overhead line inspection system 500 includes unmanned aerial vehicle 530 and interfacing apparatus, and interfacing apparatus is fixed in on unmanned aerial vehicle 530. It should be noted that, the docking device is fixed on the unmanned aerial vehicle 530, and may be directly connected to the unmanned aerial vehicle 530 or indirectly connected to the unmanned aerial vehicle, which is not limited herein. Docking assembly in this application is used for aerial butt joint of unmanned aerial vehicle 530 and overhead line to overhaul the overhead line. Illustratively, the appearance data image of the overhead line can be obtained by taking a close-range picture through a camera. Also can set up different sensors on unmanned aerial vehicle 530 and acquire corresponding data of patrolling and examining, set up temperature sensor for example on unmanned aerial vehicle 530, closely acquire the temperature data image of overhead line through temperature sensor. The multiple-degree-of-freedom robot arm can be further arranged on the unmanned aerial vehicle 530, online maintenance is carried out on the overhead line through the multiple-degree-of-freedom robot arm, and the multiple-degree-of-freedom robot arm is only used for illustrating part of application scenes of the overhead line inspection system in the application and is not limited.

In some embodiments of the present application, the overhead line inspection system 500 also includes a booster landing gear 520. Specifically, the lift landing gear 520 includes a mounting base 521 and a plurality of support feet 522 positioned below the mounting base 521. The drone 530 is fixedly mounted above the mounting station 521. The docking device is located below the mounting table 521, and the buffer mechanism 550 is rotatably connected with the support leg 522.

In some embodiments of the present application, the overhead line inspection system 500 includes at least one service robot 540. Specifically, the overhead line inspection system 500 includes 2 service robots 540. After the unmanned aerial vehicle 530 docks with the overhead line, 2 overhaul mechanical arms 540 are located the left and right sides of the overhead line, thereby realizing the online maintenance of the overhead line. Illustratively, the service robotic arm 540 is a multiple degree of freedom robotic arm.

Further, the service robot 540 has an unfolded state and a folded state. When the maintenance work is performed, the maintenance robot 540 is switched from the folded state to the unfolded state to perform maintenance on the overhead line. It can be understood that when the unmanned aerial vehicle 530 performs the maintenance operation, the unmanned aerial vehicle 530 is generally in a hovering state in the air, and the maintenance mechanical arm 540 is deployed at this time to perform maintenance, so that the operation accuracy can be improved. When unmanned aerial vehicle 530 does not dock with the overhead line or when not overhauing the operation, overhaul arm 540 is in fold condition to be favorable to reducing unmanned aerial vehicle 530 at the resistance of flight in-process.

Further, a camera is disposed on the maintenance mechanical arm 540. Illustratively, a third camera (not shown) and a fourth camera (not shown) are respectively disposed on 2 service robot arms 540. The third camera is located the left side of overhead line, and the fourth camera is located the right side of overhead line. The third camera gathers first image from the left side of overhead line, and the fourth camera gathers the second image from the right side of overhead line, and first image and second image obtain the full angle data image of overhead line after central processing unit handles, are favorable to improving and patrol and examine the degree of accuracy.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered merely illustrative and not restrictive of the broad application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, the present application uses specific words to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Similarly, it should be noted that in the foregoing description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to imply that more features are required than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single disclosed embodiment.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

For each patent, patent application publication, and other material cited in this application, such as articles, books, specifications, publications, documents, and the like, the entire contents of which are hereby incorporated by reference into this application, except for application history documents that are inconsistent with or conflict with the contents of this application, and except for documents that are currently or later become incorporated into this application as though fully set forth in the claims below. It is noted that the descriptions, definitions and/or use of terms in this application shall control if they are inconsistent or contrary to the present disclosure.

The docking device and the overhead line inspection system provided by the embodiment of the application are described in detail, a specific example is applied to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims

1. A docking device, comprising: a docking mechanism and a buffer mechanism;

the buffer mechanism comprises a telescopic rod, a rotating rod, a first elastic part and a limiting cylinder; the telescopic rod is provided with a first connecting end and a second connecting end, and the first connecting end is used for being connected with the mounting frame; the rotating rod is provided with a third connecting end and a fourth connecting end, the third connecting end is used for being connected with the unmanned aerial vehicle, and the second connecting end and the fourth connecting end are arranged oppositely; one end of the limiting cylinder is sleeved on the second connecting end, and the other end of the limiting cylinder is fixedly connected with the fourth connecting end; the first elastic piece is arranged in the limiting cylinder, one end of the first elastic piece is connected with the second connecting end in an abutting mode, and the other end of the first elastic piece is connected with the fourth connecting end in an abutting mode.

2. The docking device as claimed in claim 1, wherein the buffering mechanism further comprises a second elastic member, the second connecting end is provided with a limiting portion, one end of the second elastic member abuts against an inner side surface of the limiting portion, and the other end of the second elastic member abuts against one end of the limiting cylinder away from the fourth connecting end.

3. A docking apparatus according to claim 2 wherein said retaining means is an annular boss.

4. The docking device as claimed in claim 1, wherein the limiting cylinder is connected with the fourth connecting end in a clamping or threaded manner.

5. The docking device as claimed in claim 1, wherein the number of the buffer mechanisms is 2, and one buffer mechanism is provided on both sides of the docking device.

6. Docking apparatus according to claim 1 wherein said mounting bracket comprises a top plate and 2 coupling portions, one coupling portion being provided at each end of said top plate, and said docking assembly comprises at least one pawl provided between said 2 coupling portions, said pawl being adapted to engage with an overhead line.

7. The docking assembly as claimed in claim 6, wherein the docking assembly further comprises a driving member, the connecting portion defines a channel, the latch comprises a latch body and a latch connecting portion, the latch connecting portion is fixedly connected to the latch body, and an end of the latch connecting portion remote from the latch body passes through the channel to connect with the driving member.

8. The docking assembly as claimed in claim 7, wherein the driving member is disposed on a side of the top plate away from the latch, the docking assembly further comprises a connecting rod assembly, one end of the connecting rod assembly is rotatably connected to the latch connecting portion, the other end of the connecting rod assembly is connected to an output end of the driving member, and the driving member can drive the connecting rod assembly to rotate the latch body.

9. The docking device as claimed in claim 7, wherein the docking assembly further comprises a stopper disposed on the connecting portion and outside the channel, and the stopper has a length greater than a width of the channel.

10. The docking device as claimed in claim 1, further comprising a first camera for obtaining a distance between the docking assembly and the overhead line in a first direction and a second camera for obtaining a distance between the docking assembly and the overhead line in a second direction, wherein the first direction and the second direction are different directions.

11. An overhead line inspection system based on unmanned aerial vehicle, characterized in that, the inspection system includes unmanned aerial vehicle and the interfacing apparatus of any one of claims 1 to 10, interfacing apparatus is fixed in on the unmanned aerial vehicle.