Mechanical arm for cable operation

By installing jet nozzles and gas canisters on the cable handling robotic arm, carbon dioxide is used for fire extinguishing. The disassembly of the robotic arm is optimized through guiding and adjusting components, solving the problems of rapid fire extinguishing and maintenance when cables catch fire, and achieving efficient fire control and convenient maintenance.

CN223527670UActive Publication Date: 2025-11-07CHINA UNIV OF MINING & TECH
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Patent Information

Application Number
CN202422853601.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-11-07
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Existing cable handling robotic arms are not convenient for quickly extinguishing fires when cables catch fire, affecting the normal power supply of the cables and posing a risk of fire spreading.

Method used

A robotic arm with a jet nozzle and a gas tank was designed. It uses stored carbon dioxide to spray onto the fire source through the jet nozzle, reducing the oxygen concentration and suffocating the fire. At the same time, the robotic arm is easy to disassemble and maintain through the guide component and the adjustment component.

Benefits of technology

It enables rapid fire suppression, prevents the spread of fire, and improves the maintenance efficiency of the robotic arm.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of mechanical arms, and particularly relates to a mechanical arm for cable operation, which comprises a control box, a frame is embedded on the control box, a mounting groove is arranged in the frame, a positioning plate is arranged in the mounting groove, limiting holes are arranged on the positioning plate in an array manner, and the limiting holes are arranged in the mounting groove. A mechanical arm body is fixedly installed on the positioning plate, an air tank is fixedly installed on the supporting plate, a communicating head is fixedly connected to the air tank, and a ball valve is arranged in the communicating head. According to the mechanical arm for cable operation, through the installed gas spraying head and the gas tank, the mechanical arm for cable operation can conduct rapid fire extinguishing treatment on a fire point conveniently, the gas spraying head is aligned to a fire source through movement of the mechanical arm body, the interior of the communicating head is not sealed any more, and carbon dioxide stored in the gas tank can flow to the fire source through the gas spraying head; oxygen can be quickly replaced, and the concentration of surrounding oxygen is reduced, so that oxygen supply required by combustion is inhibited, and the effect of suffocation and fire extinguishment is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical arm technical field, concretely is a kind of mechanical arm for cable operation. BACKGROUND

[0002] The integration of power system is higher and higher, and the grid maintenance scene becomes complex and various. The traditional live working of distribution network adopts manual pole climbing and manual operation, which has high risk degree, high labor intensity, complex technical work, various tools for operation, high skill requirement for live working personnel, and complex and dangerous grid environment that can endanger the life safety of operation personnel. The mechanical arm for cable operation is used for live working scene of distribution network, can replace manual operation to reduce labor intensity of workers, protect the life safety of personnel and ensure the stable and reliable power production environment.

[0003] The existing cable operation mechanical arm is not convenient for fire extinguishing treatment of fire occurrence site in use process. When cable is accidentally short-circuited to cause fire, it is difficult to quickly extinguish the fire at the fire point, which can affect the normal power supply of cable and has certain limitation.

[0004] The patent document CN203632101U discloses a cable operation mechanical arm, wherein a screw rod is arranged on the upper part of the scaffold, the screw rod is controlled to rotate by a screw rod motor, a movable block is connected with the screw rod in screwing mode, the movable block is hingedly connected with clamping arms at two ends, limiting shafts are arranged at both sides of the bending part of each clamping arm, the limiting shafts are arranged in the sliding groove of the scaffold, and the other end of the clamping arm is hingedly connected with a clamping block. The scaffold is fixed with the small arm of the mechanical arm, the small arm of the mechanical arm is rotatably connected with the large arm of the mechanical arm by a small arm motor, the other end of the large arm is provided with a base plate connecting piece, and the large arm is driven to rotate by a large arm motor. The device is positioned at the working position by the rotation of the large arm and the small arm, and the specific gripping, fixing and replacement operation is completed by the scaffold. The device has high operability and can smoothly complete the related operation on the cable. However, the cable operation mechanical arm of the above-mentioned disclosure mainly considers the high operability and the smooth completion of the related operation on the cable, but does not consider the problem of quickly extinguishing the fire at the cable fire point. Therefore, it is necessary to research a mechanical arm for cable operation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a mechanical arm for cable operation to solve the technical problem of inconvenient fire extinguishing at the fire point in the above-mentioned background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a mechanical arm for cable operation, including control box, the control box is inlayed with frame, the frame inside is provided with mounting groove, the mounting groove inside is provided with locating plate, the locating plate is provided with limiting hole in array, the locating plate is fixedly installed with mechanical arm body, the frame inside is provided with symmetrically setting up the sliding slot, the mechanical arm body is provided with the air jet head, the air jet head one end is connected with the conveying hose, the mechanical arm body is fixedly installed with the supporting plate, the supporting plate is fixedly installed with the gas tank, the gas tank is fixedly connected with the communicating head, the communicating head inside is provided with the ball valve, the communicating head is fixedly installed with the support, the support is fixedly installed with the drive motor, and the drive motor output is fixedly connected with the ball valve, the conveying hose is connected with the communicating head.

[0007] Preferably, the sliding plate is fixedly installed with the positioning shaft corresponding to the limiting hole, and one end of the positioning shaft extends into the limiting hole.

[0008] Preferably, the control box is fixedly installed with the frame body.

[0009] Preferably, the guiding assembly comprises a groove body and a guide rod, the groove body is fixedly installed in the frame, and the groove body is located at one side of the mounting groove, the guide rod is fixedly installed in the groove body, and the guide rod extends into the sliding slot, and the guide rod penetrates the sliding plate.

[0010] Preferably, the sliding slot is provided with the through hole corresponding to the positioning shaft.

[0011] Preferably, the adjusting assembly comprises a double-output shaft motor, a rotating rod, a threaded ring and a threaded rod, the double-output shaft motor is arranged in the locating frame, one end of the rotating rod is fixedly connected with the output end of the double-output shaft motor, the threaded rod is fixedly installed at one end of the rotating rod, and the threaded rod is screw connected with the threaded ring, and the threaded ring is fixedly installed in the sliding plate.

[0012] Preferably, the frame is fixedly installed with the locating frame, and the double-output shaft motor is fixedly installed in the locating frame.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1.The utility model discloses a jet head and gas tank are installed, and the mechanical arm for cable operation is convenient for the quick fire extinguishing treatment of the fire point, when the fire source point is handled, the jet head is aligned to the fire source through the movement of the mechanical arm body, the ball valve is driven to move through the movement of the driving motor, the inside of the communicating head is not sealed any more, the carbon dioxide stored in the gas tank flows to the inside of the jet head through the cooperation of the communicating head and the conveying hose, the carbon dioxide gas flows to the fire source through the jet head, when the carbon dioxide is released to the flame area, oxygen is replaced quickly, the oxygen concentration around is reduced, thereby the oxygen supply required by combustion is inhibited, the effect of asphyxiation and fire extinguishing is reached, the sprayed carbon dioxide carries away certain heat, helps reducing the flame temperature, thereby the fire is further inhibited, and the purpose of quick fire extinguishing is realized, and the spread of the fire caused by accident is effectively avoided.

[0015] 2.The utility model discloses a positioning shaft and limit hole are installed, and the mechanical arm for cable operation is convenient for the quick maintenance of the mechanical arm used, when the mechanical arm body needs to be disassembled and maintained, the sliding plate moves in the sliding groove through the work of the adjusting component, the positioning shaft moves out from the inside of the limit hole after the sliding plate moves, and then the positioning plate is not limited any more, and then the mechanical arm body can be quickly disassembled, and then the mechanical arm body is convenient to disassemble and maintain, and the maintenance efficiency is improved. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the mechanical arm body structure schematic diagram of the utility model;

[0018] Figure 3 It is the frame structure schematic diagram of the utility model;

[0019] Figure 4 It is the sliding plate structure schematic diagram of the utility model;

[0020] Figure 5 It is the rotating rod structure schematic diagram of the utility model

[0021] Figure 6 It is the utility model Figure 1 It is the A structure enlarged schematic diagram of the utility model;

[0022] Figure 7 It is the communicating head structure schematic diagram of the utility model.

[0023] In the diagram: 1. Control box; 2. Frame; 3. Frame; 4. Mounting slot; 5. Slot; 6. Guide rod; 7. Slide groove; 8. Sliding plate; 9. Positioning shaft; 10. Through hole; 11. Strip groove; 12. Positioning frame; 13. Dual-shaft motor; 14. Rotating rod; 15. Threaded ring; 16. Threaded rod; 17. Positioning plate; 18. Limiting hole; 19. Robotic arm body; 20. Jet nozzle; 21. Delivery hose; 22. Support plate; 23. Air tank; 24. Connecting head; 25. Bracket; 26. Drive motor; 27. Ball valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 5 A robotic arm for cable handling includes a control box 1, a frame 3 embedded in the control box 1, a mounting groove 4 inside the frame 3, a positioning plate 17 inside the mounting groove 4, limit holes 18 arrayed on the positioning plate 17, a robotic arm body 19 fixedly mounted on the positioning plate 17, symmetrically arranged sliding grooves 7 inside the frame 3, sliding plates 8 inside the sliding grooves 7, positioning shafts 9 corresponding to the limit holes 18 fixedly mounted on the sliding plates 8, with one end of the positioning shafts 9 extending into the limit holes 18, a strip groove 11 fixedly mounted inside the frame 3, an adjustment component inside the strip groove 11, and a guide component inside the frame 3. The control box 1 is fixedly mounted with a frame 2. The control box 1 is fixed to the drive equipment by the frame 2. After the control box 1 is moved to the work site by the drive equipment, the robotic arm body 19 is a six-degree-of-freedom robotic arm. The robotic arm body 19 can perform operations on the cable by moving. When the robotic arm body 19 needs to be disassembled and maintained, the adjustment component is activated to move the sliding plate 8 inside the slide groove 7. After the sliding plate 8 moves, it will drive the positioning shaft 9 to move out of the limit hole 18, and then the positioning plate 17 will no longer be limited. Thus, the robotic arm body 19 can be quickly disassembled, which facilitates the disassembly and maintenance of the robotic arm body 19.

[0026] Please see Figure 1 , Figure 6 and Figure 7The mechanical arm body 19 is provided with a jet head 20, one end of the jet head 20 is connected with a conveying hose 21, the mechanical arm body 19 is fixedly installed with a support plate 22, the support plate 22 is fixedly installed with a gas tank 23, the gas tank 23 is fixedly connected with a communication head 24, the communication head 24 is internally provided with a ball valve 27, the communication head 24 is fixedly installed with a support 25, the support 25 is fixedly installed with a driving motor 26, and the output end of the driving motor 26 is fixedly connected with the ball valve 27, the conveying hose 21 is connected with the communication head 24, during the operation of the cable operation mechanical arm, when the cable is accidentally short-circuited and on fire, the position of the jet head 20 is adjusted through the movement of the mechanical arm body 19 to align the jet head 20 with the fire source, and the movement of the driving motor 26 drives the movement of the ball valve 27, and then the ball valve 27 no longer seals the inside of the communication head 24, and the carbon dioxide stored in the gas tank 23 flows into the inside of the jet head 20 through the cooperation of the communication head 24 and the conveying hose 21, and the carbon dioxide gas flows to the fire source through the jet head 20, when the carbon dioxide is released to the flame area, the oxygen concentration around is rapidly replaced, thereby inhibiting the supply of oxygen required for combustion, and the effect of suffocation and fire extinguishing is achieved, the sprayed carbon dioxide can take away a certain amount of heat, which helps to reduce the flame temperature, thereby further inhibiting the fire, and the purpose of rapid fire extinguishing is achieved, and the spread of the fire caused by the accident is effectively avoided, in the gas tank 23, the carbon dioxide is stored in the form of high-pressure liquid, when the communication head 24 is no longer sealed, the liquid carbon dioxide is rapidly released, gasified into carbon dioxide gas, and sprayed at high speed, and the jet head 20 is a nozzle specially arranged for sending carbon dioxide gas, which can uniformly spray the carbon dioxide in the form of gas on the burning object.

[0027] Please refer to Figure 3 The guide assembly comprises a groove body 5 and a guide rod 6, the groove body 5 is fixedly installed inside the frame 3 and located at one side of the mounting groove 4, and the guide rod 6 is fixedly installed inside the groove body 5 and extends into the sliding groove 7 and penetrates the sliding plate 8, when the sliding plate 8 moves, it moves on the guide rod 6, and then moves stably through the cooperation of the guide rod 6.

[0028] Please refer to Figure 3 and Figure 4 The sliding groove 7 is provided with a penetration hole 10 corresponding to the positioning shaft 9, which facilitates the movement of the positioning shaft 9 into the mounting groove 4.

[0029] Please refer to Figure 3The adjusting assembly comprises a double-output-shaft motor 13, a rotating rod 14, a threaded ring 15 and a threaded rod 16. The double-output-shaft motor 13 is arranged in the positioning frame 12. One end of the rotating rod 14 is fixedly connected with the output end of the double-output-shaft motor 13. The threaded rod 16 is fixedly arranged at one end of the rotating rod 14 and is threadedly connected with the threaded ring 15. The threaded ring 15 is fixedly arranged in the sliding plate 8. The double-output-shaft motor 13 works to drive the rotating rod 14 to rotate. The rotating rod 14 rotates to drive the threaded rod 16 to rotate. The threaded rod 16 rotates to drive the threaded ring 15 to move. The threaded ring 15 moves to drive the sliding plate 8 to move. Thus, the position of the positioning shaft 9 can be adjusted.

[0030] Please refer to Figure 3 and Figure 5 The positioning frame 12 is fixedly arranged in the frame 3, and the double-output-shaft motor 13 is fixedly arranged in the positioning frame 12. The frame 3 positions and installs the double-output-shaft motor 13 through the positioning frame 12.

[0031] The working principle is that first, the control box 1 is fixed on the driving device through the frame body 2, and then the control box 1 is moved to the working position through the driving device. The mechanical arm body 19 is a six-degree-of-freedom mechanical arm. The cable can be processed through the movement of the mechanical arm body 19. The mechanical arm body 19 can be accurately positioned according to the preset path, so that the cable can be connected to the correct position during installation. The cable can be flexibly operated at various angles and directions, so that it is suitable for complex installation environments, especially in narrow or difficult-to-reach spaces. The cable can be automatically placed and arranged to ensure that the cable is in order, reduce errors and unsafe factors caused by manual operation, and improve work efficiency. In the case of repeated cable placement, the mechanical arm can be programmed to perform the same operation, thereby improving work efficiency. During the cable operation of the mechanical arm, when the cable is accidentally short-circuited and catches fire, the position of the jet head 20 is adjusted through the movement of the mechanical arm body 19, so that the jet head 20 is aligned with the fire source. The movement of the driving motor 26 drives the movement of the ball valve 27, so that the ball valve 27 no longer seals the inside of the communication head 24. The carbon dioxide stored in the gas tank 23 flows into the jet head 20 through the cooperation of the communication head 24 and the conveying hose 21. The carbon dioxide gas flows to the fire source through the jet head 20. When the carbon dioxide is released to the flame area, it will quickly replace oxygen, reduce the oxygen concentration around it, and thus inhibit the supply of oxygen required for combustion, thereby achieving the effect of suffocation and fire extinguishing. The sprayed carbon dioxide can take away some heat, which helps to reduce the flame temperature, thereby further suppressing the fire, and thus achieving the purpose of rapid fire extinguishing. When it is necessary to disassemble and maintain the mechanical arm body 19, the double-output shaft motor 13 works to drive the rotation of the rotating rod 14. When the rotating rod 14 rotates, the threaded rod 16 rotates, and the threaded ring 15 moves. The movement of the threaded ring 15 moves the position of the sliding plate 8, so that the position of the positioning shaft 9 can be adjusted. After the positioning shaft 9 moves out of the limiting hole 18, the positioning plate 17 is no longer limited, so that the mechanical arm body 19 can be quickly disassembled, thereby facilitating the disassembly and maintenance of the mechanical arm body 19.

[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A mechanical arm for cable work, comprising a control box (1), characterized in that: The control box (1) is inlaid with a frame (3), the frame (3) is internally provided with a mounting groove (4), the mounting groove (4) is internally provided with a positioning plate (17), the positioning plate (17) is arrayed with a limiting hole (18), the positioning plate (17) is fixedly installed with a mechanical arm body (19), the frame (3) is symmetrically provided with a sliding groove (7), the mechanical arm body (19) is provided with a jet head (20), one end of the jet head (20) is connected with a conveying hose (21), the mechanical arm body (19) is fixedly installed with a supporting plate (22), the supporting plate (22) is fixedly installed with a gas tank (23), the gas tank (23) is fixedly connected with a communication head (24), the communication head (24) is internally provided with a ball valve (27), the communication head (24) is fixedly installed with a support (25), the support (25) is fixedly installed with a driving motor (26), and the driving motor (26) output end is fixedly connected with the ball valve (27), and the conveying hose (21) is connected with the communication head (24).

2. A robotic arm for cable work according to claim 1, characterized in that: The sliding groove (7) is internally provided with a sliding plate (8), the sliding plate (8) is fixedly installed with a positioning shaft (9) corresponding to the limiting hole (18), and one end of the positioning shaft (9) extends into the limiting hole (18), the frame (3) is fixedly installed with a strip-shaped groove (11), the strip-shaped groove (11) is internally provided with an adjusting assembly, and the frame (3) is provided with a guide assembly.

3. A mechanical arm for cable work according to claim 1, characterized in that: The control box (1) is fixedly installed with a frame body (2).

4. A mechanical arm for cable work according to claim 2, characterized in that: The guide assembly comprises a groove body (5) and a guide rod (6), the groove body (5) is fixedly installed in the frame (3), and the groove body (5) is located on one side of the mounting groove (4), the guide rod (6) is fixedly installed in the groove body (5), and the guide rod (6) extends into the sliding groove (7), and the guide rod (6) penetrates the sliding plate (8).

5. A mechanical arm for cable work according to claim 4, characterized in that: The sliding groove (7) is provided with a through hole (10) corresponding to the positioning shaft (9).

6. A mechanical arm for cable work according to claim 2, characterized in that: The adjusting assembly comprises a double-output shaft motor (13), a rotating rod (14), a threaded ring (15) and a threaded rod (16), the double-output shaft motor (13) is arranged in the positioning frame (12), one end of the rotating rod (14) is fixedly connected with the output end of the double-output shaft motor (13), the threaded rod (16) is fixedly installed at one end of the rotating rod (14), and the threaded rod (16) is threadedly connected with the threaded ring (15), and the threaded ring (15) is fixedly installed in the sliding plate (8).

7. A mechanical arm for cable work according to claim 6, characterized in that: The frame (3) is fixedly installed with a positioning frame (12), and the double-output shaft motor (13) is fixedly installed in the positioning frame (12).

Citation Information

Patent Citations

  • Mechanical arm for cable operation

    CN203632101U