Marking tool matched with cable maintenance unmanned aerial vehicle

By introducing auxiliary positioning components and an electric push rod driven positioning device, the problem of unstable position of UAV marking equipment under the influence of airflow was solved, achieving high-precision and uniform cable marking, and improving the efficiency and safety of cable maintenance.

CN224061188UActive Publication Date: 2026-03-31LANZHOU JINUOTAI POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

During flight, existing drone marking equipment is prone to misalignment, discontinuity, or unevenness in the marking lines due to the influence of wind and airflow, which affects the marking quality and the accuracy of maintenance work.

Method used

The cable is locked using auxiliary positioning components (such as C-arms, rollers, etc.), and the auxiliary positioning device driven by an electric push rod ensures that the nozzle and the cable surface maintain a stable relative position. Precise spraying is achieved through recognition cameras and a wireless control system.

Benefits of technology

It improves the stability and accuracy of marking operations, reduces flight deviations and offsets, ensures high-precision and uniform marking results, and enhances work efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cable maintenance, and discloses a cable maintenance unmanned aerial vehicle matching marking tool, which is characterized in that cantilevers are mounted on the left and right sides of the front and rear ends of an unmanned aerial vehicle body, unmanned aerial vehicle propellers are mounted at the ends of the cantilevers on the two sides, and a recovery groove is formed in the bottom of the unmanned aerial vehicle body; a marking assembly capable of deflecting downwards by 90 degrees is installed in the recycling groove, the marking assembly comprises an installation rotating shaft, a servo motor, an electric telescopic rod, a marking paint box, an infusion pump, a spray head and an auxiliary positioning piece, the installation rotating shaft is installed in the recycling groove and is in butt joint with the tail end of the electric telescopic rod, and the marking paint box is installed at the telescopic end of the electric telescopic rod; the infusion pump is installed at the front end of the marking paint box, the nozzle is installed at the liquid outlet end of the front end of the infusion pump, and the auxiliary positioning pieces are correspondingly distributed on the left and right sides of the nozzle. According to the device, by integrating multiple innovative designs, the problem of deviation caused by the fact that the unmanned aerial vehicle is prone to being influenced by airflow in the high-altitude operation is effectively solved, and the operation stability and precision of cable marking are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of cable maintenance technology, specifically a marking tool for cable maintenance drones. Background Technology

[0002] With the rapid development of power and communication networks in modern society, the maintenance of overhead and underground cables has become particularly important. As a critical infrastructure for energy and information transmission, the stable operation of cables directly affects the normal functioning of social production and residents' lives. Traditional cable maintenance typically relies on manual inspection and marking, which is not only labor-intensive and inefficient but also poses significant safety risks, especially in complex terrain and high-altitude environments where the limitations and dangers of manual operation are even more pronounced. Therefore, utilizing drone technology for cable inspection and marking has become an important development direction for improving maintenance efficiency and ensuring operational safety.

[0003] Currently, although there are some cable marking devices for drones on the market, the relative position between the marking nozzle and the cable is difficult to maintain during flight due to the influence of wind and airflow. This causes the marking lines to be easily offset, discontinuous, or uneven, affecting the marking quality and the accuracy of subsequent maintenance work. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a marking tool for cable maintenance drones to solve the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a marking tool for a cable maintenance drone, comprising a drone body, cantilever arms installed on the left and right sides of the front and rear ends of the drone body, drone propellers installed at the ends of the cantilever arms, a recovery trough at the bottom of the drone body, and a marking assembly that can be deflected downwards at 90° installed inside the recovery trough. The marking assembly includes a mounting shaft, a servo motor, an electric telescopic rod, a marking pigment box, a liquid pump, a nozzle, and auxiliary positioning components. The mounting shaft is installed in the recovery trough and is connected to the tail end of the electric telescopic rod. The marking pigment box is installed on the telescopic end of the electric telescopic rod. The liquid pump is installed at the front end of the marking pigment box. The nozzle is installed at the liquid outlet end of the liquid pump. The auxiliary positioning components are correspondingly distributed on the left and right sides of the nozzle.

[0008] As a preferred embodiment of this utility model, the servo motor is installed in the recycling tank and its output end is connected to the end of the mounting shaft.

[0009] As a preferred technical solution of this utility model, the auxiliary positioning component includes an electric push rod, a mounting platform, a C-shaped arm, and a roller. The mounting platform is installed at the front end of the liquid pump housing. The C-shaped arm is hinged to the front of the mounting platform, and the front end of the C-shaped arm is located on the side front of the nozzle. The inner arc surface of the front end of the roller is connected to the rear end of the electric push rod, which is hinged to the front side of the marking pigment box. The front end of the electric push rod is hinged to the outside of the C-shaped arm.

[0010] As a preferred technical solution of this utility model, the front ends of the C-shaped arms on both sides are closed when the electric push rods inside the auxiliary positioning components on both sides are pushed out.

[0011] As a preferred technical solution of this utility model, an identification camera is installed at the front end of the drone body, and the electric components inside the identification camera and the marking component are wirelessly connected to the user terminal.

[0012] As a preferred technical solution of this utility model, the nozzle adopts a flat structure.

[0013] As a preferred technical solution of this utility model, the rollers on both sides are distributed in a V-shape and roll to contact the bottom of the cable to be maintained when the electric push rods inside the auxiliary positioning parts on both sides are pushed out.

[0014] Compared with the prior art, this utility model provides a marking tool for cable maintenance drones, which has the following advantages:

[0015] Improve the stability and accuracy of marking operations: By introducing auxiliary positioning components (such as C-arms, rollers, etc.), the cable to be maintained can be firmly locked, ensuring that the nozzle (56) and the cable surface maintain a stable relative position. Even if the UAV is affected by external airflow during flight, the spraying position can be effectively guaranteed, thereby achieving a high-precision and uniform marking effect.

[0016] Effectively reduces in-flight deviation and offset: An auxiliary positioning device driven by an electric push rod (571) keeps the spraying path in the predetermined position, avoiding deviation caused by airflow interference. This not only improves the quality of the sprayed lines but also greatly reduces the possibility of repetitive work, thus increasing work efficiency.

[0017] In summary, this device, through the integration of multiple innovative designs, effectively solves the deviation problem caused by airflow during high-altitude operations of UAVs, significantly improving the operational stability and accuracy of cable marking. Its combination of automatic cable locking, precise adjustment of spraying position, and intelligent monitoring system provides an efficient and reliable solution for cable maintenance. This technology not only enhances the operational capabilities of UAVs in complex environments but also lays a solid foundation for the future unmanned and intelligent development of cable maintenance. Overall, this marking tool achieves improved operational efficiency, guaranteed operational quality, and reduced operational risks, bringing significant technological advancements and application value to cable maintenance in industries such as power and communications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention in its non-working state;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention in its working state;

[0020] Figure 3 This is a schematic diagram of the structure of the marking component of this utility model;

[0021] Figure 4 This is a schematic diagram of the auxiliary positioning component of this utility model.

[0022] The components include: 1. UAV body; 2. Cantilever; 3. UAV propeller; 4. Identification camera; 5. Marking components;

[0023] 11. Recycling tank;

[0024] 51. Mounting shaft; 52. Servo motor; 53. Electric telescopic rod; 54. Marking pigment box; 55. Liquid pump; 56. Spray nozzle; 57. Auxiliary positioning component;

[0025] 571. Electric push rod; 572. Mounting platform; 573. C-shaped clamp arm; 574. Roller. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0027] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

[0029] Please see Figure 1-4 A marking tool for cable maintenance drones is disclosed, primarily used for marking cables during cable maintenance. The tool consists of several parts, including the drone body 1, cantilever 2, drone propeller 3, recovery trough 11, and marking components 5.

[0030] Unmanned aerial vehicle body 1 and cantilever 2

[0031] The drone body 1 supports the various components of the marking tool. Cantilever arms 2 are mounted at the front and rear ends of the body, forming a symmetrical structure. Propellers 3 are mounted at the ends of the cantilever arms 2 to ensure stable flight of the drone. All contact points between the drone body 1 and the cables are made of insulating material.

[0032] Recycling tank 11 and marking assembly 5

[0033] The bottom of the drone body 1 is designed with a recovery tank 11, and a marking component 5 is installed inside the recovery tank 11. The marking component 5 can be deflected downwards by 90° as needed to spray markings on the parts of the cable that need maintenance.

[0034] Mounting shaft 51: The mounting shaft 51 is located inside the recycling tank 11 and is connected to the tail end of the electric telescopic rod 53. Thus, when the mounting shaft 51 rotates, it can drive the entire marking assembly 5 to deflect downwards by 90° to switch to the marking state.

[0035] Servo motor 52: The servo motor 52 is installed in the recycling tank 11 and connected to the mounting shaft 51 through the output end. It is mainly used to drive the entire marking component 5 to deflect downward to the marking state and to drive the marking component 5 to be recycled into the inside of the recycling tank 11 later.

[0036] Electric telescopic pole 53: The electric telescopic pole 53, in conjunction with the servo motor 52, can extend and adjust the downward position of the front end structure so that it can approach the position of the cable to be sprayed with markings.

[0037] Marking pigment box 54: The marking pigment box 54 is installed at the telescopic end of the electric telescopic pole 53, and contains pigment liquid for easy spraying of pigment for marking cables.

[0038] Liquid pump 55 and nozzle 56: Liquid pump 55 is connected to the front end of the marking pigment cartridge 54 and is responsible for drawing liquid pigment and delivering it to nozzle 56. Nozzle 56 has a flat structure to form uniform marking lines during spraying.

[0039] Auxiliary positioning component 57: The auxiliary positioning component 57 is mainly used to lock the cable to be maintained. It includes an electric push rod 571, a mounting platform 572, a C-shaped clamp arm 573, and a roller 574. Among them, the C-shaped clamp arm 573 is connected to the mounting platform 572 through a hinge design. The C-shaped clamp arms 573 on both sides can be opened and closed under the drive of the electric push rod 571. At this time, the front ends of the C-shaped clamp arms 573 on both sides are closed, forming a ring around the outside of the cable. Then, the drone is started and raised a certain distance. At this time, the rollers 574 on the inner side of the C-shaped clamp arms 573 on both sides roll against the bottom of the cable. When the drone moves forward and backward, the position between the nozzle 56 and the cable remains fixed. Even if it is affected by external airflow, it will not deviate, making the spray marking work more stable, accurate and reliable.

[0040] Wireless control system and identification camera 4

[0041] A recognition camera 4 is installed at the front of the drone body 1. This camera is used to monitor the position and status of the cable in real time, helping the drone to automatically locate itself. The recognition camera 4 and the electric components inside the marking component 5 are connected to the user terminal via wireless communication, allowing the operator to adjust the specific position and marking method of the marker in real time.

[0042] Marking nozzle 56

[0043] The nozzle 56 features a flat structure, enabling it to form uniform marking lines on the cable surface. The nozzle design considers both spraying efficiency and precision, ensuring that the pigment can evenly and accurately cover the cable surface even at high speeds.

[0044] The workflow of the cable maintenance drone and its accompanying marking tool is as follows: First, the drone body 1 monitors the position and status of the cable in real time through the identification camera 4 installed at the front end, assisting the drone in automatically locating the cable section to be maintained. The drone maintains stable flight using the propellers 3 installed at both ends of the cantilever 2. After reaching the target position, the servo motor 52 is activated to drive the mounting shaft 51, causing the marking component 5 to deflect downwards by 90°. The electric telescopic rod 53 adjusts the depth of the nozzle 56, bringing the marking pigment box 54 and the nozzle 56 close to the cable surface. Then, the electric push rods 571 in the auxiliary positioning components 57 on both sides drive the left and right C-shaped clamps 573 on the mounting platform 572 to close to the outside of the cable, with the roller 574 fitting against the bottom of the cable. This ensures that the nozzle 56 and the cable are fixed in position during the drone's forward and backward movement, preventing displacement. Next, the liquid pump 55 is activated to deliver liquid pigment from the marking pigment box 54 to the flat nozzle 56, waiting to move to the marking position for spraying. After spraying, the above operation is reversed to retrieve the marking component 5 into the recovery tank 11.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cable maintenance drone kit marking tool comprising a drone body (1), characterized in that: The unmanned aerial vehicle body (1) front and rear ends of both sides are provided with cantilevers (2), both sides of the cantilevers (2) are provided with unmanned aerial vehicle propellers (3) at the ends, a recycling groove (11) is formed in the bottom of the unmanned aerial vehicle body (1), a marking assembly (5) which can be deflected downward by 90° is installed inside the recycling groove (11), the marking assembly (5) comprises a mounting shaft (51), a servo motor (52), an electric telescopic rod (53), a marking pigment box (54), a liquid pumping pump (55), a spray head (56) and an auxiliary positioning member (57), the mounting shaft (51) is installed in the recycling groove (11) and is connected with the tail end of the electric telescopic rod (53), the marking pigment box (54) is installed on the telescopic end of the electric telescopic rod (53), the liquid pumping pump (55) is installed at the front end of the marking pigment box (54), the spray head (56) is installed on the liquid outlet end of the front end of the liquid pumping pump (55), and the auxiliary positioning member (57) is distributed on the left and right sides of the spray head.

2. The cable maintenance drone matching marking tool according to claim 1, characterized in that: The servo motor (52) is installed in the recycling groove (11) and the output end is connected with the shaft end of the mounting shaft (51).

3. The cable maintenance drone marking tool of claim 1, wherein: The auxiliary positioning member (57) comprises an electric push rod (571), a mounting table (572), a C-shaped arm (573) and a roller shaft (574), the mounting table (572) is installed at the front end position of the liquid pumping pump (55) shell, the C-shaped arm (573) is hinged in front of the mounting table (572), the front end of the C-shaped arm (573) is located in front of the side of the spray head (56), the front end of the roller shaft (574) is located on the inner arc surface, the tail end of the electric push rod (571) is hinged on one side of the front end of the marking pigment box (54), and the front end of the electric push rod (571) is hinged on the outside of the C-shaped arm (573).

4. The cable maintenance drone kit marking tool of claim 3, wherein: The front ends of the C-shaped arms (573) on both sides are closed when the electric push rods (571) in the auxiliary positioning members (57) on both sides are pushed out.

5. The cable maintenance drone marking kit of claim 1, wherein: An identification camera (4) is installed at the front end of the unmanned aerial vehicle body (1), and the identification camera (4) and the electric components in the marking assembly (5) are wirelessly connected with a user terminal.

6. The cable maintenance drone kit marking tool of claim 1, wherein: The spray head (56) adopts a flat structure.

7. The cable maintenance drone kit marking tool of claim 3, wherein: When the electric push rods (571) in the auxiliary positioning members (57) on both sides are pushed out, the roller shafts (574) on both sides are distributed in a V shape and roll on the bottom of the cable to be maintained.