Mobile power supply cable maintenance equipment

Abstract

The invention relates to the technical field of power supply equipment, in particular to movable power supply cable maintenance equipment which comprises two main rods which are hollow rods, leg supports are arranged in the middles of the two main rods, a plurality of transverse rods are arranged at the bottoms of the main rods, the movable power supply cable maintenance equipment further comprises connecting blocks fixedly arranged at the top ends of the main rods, and limiting rods are arranged on the connecting blocks. The limiting rod, the connecting block and the top end of the main rod form a U-shaped structure, a pulley is rotationally arranged in the U-shaped structure, a safety pin is arranged on the limiting rod, and an insertion hole for the safety pin to be inserted is formed in the outer side of the top end of the main rod. The bracket can be unfolded or folded on the outer side of the main rod and is convenient to carry and store, in addition, through the design of the limiting assembly and the linkage piece, the bracket can be unfolded only when the safety pin is correctly installed, and the use safety is further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply equipment, and in particular to mobile power supply cable repair equipment. Background Art

[0002] In power maintenance, maintenance flying cars are widely used as core tools for maintenance work of high-position overhead cables. The current single-line flying car device adopts a trapezoidal frame structure, with an inverted U-shaped wire clamping bracket at the top, a low-friction pulley group embedded in the bracket, and an anti-slip safety pin designed at the bottom. The device moves along the line through rolling contact between the pulley and the cable. The safety pin, as the only anti-slip mechanism, needs to be manually inserted under the cable to form a "cable-pulley-safety pin" sandwich-type fixed structure. For example, a single-line operation flying car for a transmission line disclosed in application number 201510440208.X includes two support rods, which are connected by a number of connecting rods arranged at intervals. A main pulley is movably connected to the upper part of the two support rods, and the two main pulleys are arranged in a straight line. A plate body is provided above the two support rods, and the top ends of the two support rods are fixedly connected to the middle part of the plate body. A crossing auxiliary device is provided on both sides of the plate body.

[0003] In theory, workers should insert the safety pin immediately after hooking the flying car to the cable as a key safety measure to prevent the flying car from accidentally falling off due to wind, vibration or improper operation. However, some workers may forget to insert the safety pin due to negligence or distraction, or the safety pin may not be inserted properly, resulting in the safety pin not being effectively fixed. Secondly, if there is a lack of systematic safety training or on-site supervision, it may also lead to workers' poor understanding of safety regulations or poor implementation, thereby ignoring the importance of the safety pin. For this reason, we propose a mobile power supply cable maintenance equipment. Summary of the Invention

[0004] In order to solve the above technical problems, the embodiment of the present application provides a mobile power supply cable maintenance equipment, including two main poles, the main poles are hollow poles, leg supports are provided in the middle of the two main poles, and several cross poles are provided at the bottom of the main poles, and the two ends of the cross poles are fixedly connected to the two main poles respectively; it also includes a connecting block fixedly arranged at the top end of the main pole, a limiting rod is provided on the connecting block, the limiting rod, the connecting block and the top end of the main pole form a U-shaped structure, and a pulley is rotatably arranged inside the U-shaped structure, a safety pin is provided on the limiting rod, and a socket for inserting the safety pin is opened on the outer side of the top end of the main pole: it also includes a bracket rotatably arranged on one side of the main pole, the bracket is U-shaped and its two ends are rotatably arranged on the two main poles respectively, a limiting assembly for rotationally limiting the bracket is provided inside the main pole, and a linkage member transmission-connected to the limiting assembly is provided inside the top end of the main pole. When the safety pin is inserted into the socket, it can release the rotation limit of the bracket by the limiting assembly through the linkage member.

[0005] The two main rods of the present invention both include a straight segment one, a curved segment and a straight segment two. The straight segment one is located at the bottom of the main rod. The straight segment one is connected to the straight segment two through the curved segment, and the bending directions of the curved segments on the two main rods are opposite, so that the two limit rods are symmetrically arranged relative to the cable.

[0006] According to the present invention, a threaded sleeve is fixedly provided in the main rod, and the threaded sleeve is coaxially arranged with the socket. The safety pin includes an insertion rod movably arranged in the limit rod, and a handle is provided at one end of the insertion rod close to the limit rod. The other end of the insertion rod is fixedly connected to a screw rod, and the screw rod is threadedly connected to the threaded sleeve.

[0007] According to the present invention, a fixed block is fixedly provided on the outside of the two main rods, a rotating seat is provided on the outside of the fixed block, the rotating block is fixedly connected to the end of the bracket, and the rotating block is rotatably connected to the rotating seat through a rotating shaft. A fixed plate is provided at the bottom of the fixed block, and the fixed plate is perpendicular to the main rod.

[0008] The limit assembly described in the present invention includes a limit plate slidably arranged in the main rod, the end of the limit plate slides through the fixed block, one end of the limit plate located in the main rod is fixedly connected to the limit spring, the other end of the limit spring is fixedly connected to the inner side of the main rod, and the side wall of the rotating block is provided with a limit groove that is plugged into and cooperates with the limit plate.

[0009] The linkage part described in the present invention includes a linkage pull rope arranged in the main rod, the top end of the linkage pull rope is fixedly connected to the top of the main rod, and the bottom end is fixedly connected to the limit plate, and guide parts are provided on the inner side of the bottom and the inside of the top of the main rod. The guide part located at the bottom of the main rod and the limit plate are in the same horizontal plane, and the end of the linkage pull rope bypasses the guide part and extends to the top of the main rod. Two groups of guide parts are provided on the inner side of the top of the main rod, and the two guide parts are respectively located on the same side of the linkage pull rope, and are respectively located on the upper and lower sides of the threaded sleeve.

[0010] The guide member of the present invention comprises a guide rod fixedly arranged inside the main rod, and a guide wheel is rotatably arranged on the end of the guide rod.

[0011] The end of the screw rod of the present invention is rotatably connected to a top block, the top block is truncated cone-shaped and has a plurality of wire grooves opened on the outer circumference, and the plurality of wire grooves are arranged in a circular array.

[0012] The main rod of the present invention is further provided with a positioning member for positioning the screw rod and a moving member in transmission connection with the positioning member. When the bracket rotates to fit the main rod, the positioning member can be driven by the moving member to release the positioning of the screw rod. The positioning member includes a fixed sleeve fixedly arranged at the bottom end of the threaded sleeve, a positioning block is slidably arranged in the fixed sleeve, a support spring is fixedly connected to the bottom end of the positioning block, the other end of the support spring is connected to the fixed sleeve, and an annular groove is opened on the outside of the screw rod for use with the positioning block.

[0013] The moving part of the present invention includes an elastic telescopic rod fixedly arranged inside the main rod, the bottom end of the elastic telescopic rod is fixedly connected to a moving block, a transmission rope is arranged between the moving block and the positioning block, and the two ends of the transmission rope are respectively fixedly connected to the moving block and the positioning block, an oblique groove is provided on the outside of the moving block, a push rod is fixedly provided on the outside of the bracket, and a through hole for the push rod to pass through is provided on the main rod. When the bracket is retracted, the push rod squeezes the oblique groove to drive the moving block to move downward.

[0014] The present invention has at least the following beneficial effects: 1. The design of the bracket allows workers to sit on it while performing maintenance work, reducing fatigue. The bracket can be unfolded or retracted outside the main pole, making it easy to carry and store. In addition, through the design of the limit assembly and linkage parts, the bracket can only be unfolded when the safety pin is correctly installed, further ensuring safety in use; 2. The design of the positioning and moving parts realizes the automatic positioning and unlocking of the screw. The safety pin can only be pulled out when the bracket is folded up, ensuring that the worker must put the bracket away after use to facilitate the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the front view structure of the present invention; Figure 3 This is a schematic diagram of the main rod structure of the present invention; Figure 4 This is a schematic diagram of the main rod top structure of the present invention; Figure 5 This is a structural diagram of the bracket of the present invention; Figure 6 This is an enlarged structural diagram of point A of the present invention; Figure 7 This is a schematic diagram of a partial cross-sectional structure of the main rod of the present invention; Figure 8 For the present invention Figure 7 Look at the structural diagram; Figure 9 This is an enlarged structural diagram of point B of the present invention; Figure 10 This is an enlarged structural diagram of position C of the present invention; Figure 11 This is a structural diagram of the positioning member and the moving member of the present invention; Figure 12 This is a structural diagram of the positioning member of the present invention; Figure 13 This is a structural diagram of the moving parts of the present invention; Figure 14 This is a schematic diagram of the main rod and bracket structure of the present invention; Figure 15 This is an enlarged structural diagram of point D of the present invention.

[0016] In the figure: 1. Main rod; 101. Straight segment 1; 102. Curved segment; 103. Straight segment 2; 2. Leg support; 3. Crossbar; 4. Safety pin; 41. Insertion rod; 42. Screw; 5. Limit assembly; 51. Limit plate; 52. Limit spring; 53. Limit slot; 6. Linkage member; 61. Linkage rope; 62. Guide member; 621. Guide rod; 622. Guide wheel; 7. Positioning member; 71. Fixing sleeve; 72. Positioning block; 73. Support spring; 74. Ring groove; 8. Moving part; 81. Elastic telescopic rod; 82. Moving block; 83. Transmission rope; 84. Inclined groove; 85. Push rod; 9. Connecting block; 10. Limit rod; 11. Pulley; 12. Socket; 13. Bracket; 14. Threaded sleeve; 15. Fixed block; 16. Rotating seat; 17. Rotating block; 18. Fixed plate; 19. Push block; 20. Wire trough. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figures 1-10 The present invention provides a technical solution: a mobile power supply cable maintenance device, comprising two main poles 1, the main poles 1 being hollow poles, with leg rests 2 provided in the middle of the two main poles 1. When in use, workers can place their legs on the leg rests 2, and a plurality of cross bars 3 are provided at the bottom of the main poles 1, with the two ends of the cross bars 3 fixedly connected to the two main poles 1 respectively. By setting the cross bars 3, the lower part of the main pole 1 is a ladder structure. When reaching the designated maintenance position, the worker can adjust the height of the cross bars 3 according to his own situation, that is, by stepping on cross bars 3 of different heights, he can adjust his height relative to the cable, which is convenient for applying force during maintenance. The cable is secured to the cable by means of a U-shaped pulley 11 and a safety pin 4. The cable is secured to the cable by means of a U-shaped pulley 11. The cable is secured to the cable by means of a U-shaped pulley 11. The cable is secured to the cable by means of a U-shaped pulley 11. The cable is secured to the cable by means of a U-shaped pulley 11. The cable is secured to the cable by means of a safety pin 4. The cable is secured to the cable by means of a safety pin 4. The cable is secured to the cable by means of a safety pin 4. The cable is secured to the cable by means of a safety pin 4. The device further includes a bracket 13 rotatably arranged on one side of the main rod 1. The bracket 13 is rotatably connected to the main rod 1 and can be deployed or retracted outside the main rod 1. The bracket 13 can be deployed during maintenance, and a worker can sit on the bracket 13 with their legs placed on the leg rests 2. The worker can then use a manual or electric tool to move the device on the cable. When the maintenance is completed, the bracket 13 can be retracted for easy carrying. The bracket 13 is U-shaped and its two ends are rotatably set on the two main rods 1. A limit component 5 for limiting the rotation of the bracket 13 is provided inside the main rod 1. A linkage part 6 that is transmission-connected to the limit component 5 is provided inside the top of the main rod 1. When the safety pin 4 is inserted into the socket 12, it can release the rotation limit of the bracket 13 by the limit component 5 through the linkage part 6.

[0019] Both main poles 1 include a straight segment 101, a curved segment 102 and a straight segment 2 103. The straight segment 101 is located at the bottom of the main pole 1. The straight segment 101 is connected to the straight segment 2 103 through the curved segment 102, and the bending directions of the curved segments 102 on the two main poles 1 are opposite, so that the two limit rods 10 are symmetrically arranged relative to the cable. When the device is installed on the cable, even if the device rotates to a certain extent on the cable, it will not fall out due to the restriction of the limit rods 10 on both sides. That is, no matter whether the device rotates to the left or right relative to the cable, there will always be a limit rod 10 on one side to play a limiting role.

[0020] A threaded sleeve 14 is fixedly provided inside the main rod 1, and the threaded sleeve 14 is coaxially arranged with the socket 12. The safety pin 4 includes an insertion rod 41 movably arranged in the limit rod 10. A handle is provided at one end of the insertion rod 41 close to the limit rod 10, and a screw 42 is fixedly connected to the other end of the insertion rod 41. The screw 42 is threadedly connected to the threaded sleeve 14. After hanging the device on the cable, the worker turns the handle to thread the screw 42 to be threadedly connected to the threaded sleeve 14, thereby closing the U-shaped structure at the top of the main rod 1 to ensure safety during use. The outer diameter of the screw 42 is larger than the outer diameter of the insertion rod 41, so that when the safety pin 4 is pulled out, it will not fall off the limit rod 10.

[0021] A fixed block 15 is fixedly provided on the outside of the two main rods 1, and a rotating seat 16 is provided on the outside of the fixed block 15. A rotating block 17 is fixedly connected to the end of the bracket 13, and the rotating block 17 is rotatably connected to the rotating seat 16 through a rotating shaft. A fixed plate 18 is provided at the bottom of the fixed block 15, and the fixed plate 18 is perpendicular to the main rod 1. The fixed plate 18 can limit the main rod 1 to ensure that the bracket 13 can only rotate to a position perpendicular to the main rod 1 on the outside of the main rod 1.

[0022] The limiting assembly 5 includes a limiting plate 51 slidably arranged in the main rod 1, and the end of the limiting plate 51 slides through the fixed block 15. One end of the limiting plate 51 located in the main rod 1 is fixedly connected to the limiting spring 52, and the other end of the limiting spring 52 is fixedly connected to the inner side of the main rod 1. The side wall of the rotating block 17 is provided with a limiting groove 53 that is plugged into the limiting plate 51. Under normal conditions, the limiting spring 52 presses the limiting plate 51 to make it protrude from the fixed block 15, and then when the bracket 13 is retracted, the limiting plate 51 is plugged into the limiting groove 53, thereby limiting the rotation of the bracket 13.

[0023] The linkage member 6 includes a linkage pull rope 61 arranged in the main rod 1. The top end of the linkage pull rope 61 is fixedly connected to the top of the main rod 1, and the bottom end is fixedly connected to the limit plate 51. Guide members 62 are provided on the inner side of the bottom and the inner side of the top of the main rod 1. The guide member 62 located at the bottom of the main rod 1 is in the same horizontal plane as the limit plate 51, and the end of the linkage pull rope 61 passes around the guide member 62 and extends to the top of the main rod 1. Two sets of guide members 62 are provided on the inner side of the top of the main rod 1. The two guide members 62 are respectively located on the same side of the linkage pull rope 61 and are respectively located on the upper and lower sides of the threaded sleeve 14; When the screw 42 is connected to the threaded sleeve 14, that is, when the safety pin 4 is inserted into the main rod 1, the end of the screw 42 abuts against the linkage rope 61 and squeezes the linkage rope 61. Under the action of the guide 62, the section of the linkage rope 61 close to the screw 42 is deformed and the linkage rope 61 below is pulled, so that the linkage rope 61 drives the limit plate 51 to move, thereby releasing the rotation limit of the bracket 13. Under such a design, the bracket 13 can only be unfolded when the worker installs the safety pin 4, thereby ensuring that the bracket 13 cannot be unfolded if the safety pin 4 is not installed, and the worker cannot blow up the bracket 13 and then sit on the bracket 13 and move along the cable.

[0024] The guide member 62 includes a guide rod 621 fixedly arranged inside the main rod 1. A guide wheel 622 is rotatably arranged at the end of the guide rod 621, which changes its contact with the linkage rope 61 into rolling contact, reducing friction and increasing the service life of the linkage rope 61. In order to increase the reliability of the linkage rope 61, a steel wire rope can be used.

[0025] The end of the screw 42 is rotatably connected to a top block 19. The top block 19 is truncated cone-shaped and has a plurality of wire grooves 20 on the outer periphery. The plurality of wire grooves 20 are arranged in a circular array. Through the cooperation between the wire grooves 20 and the linkage pull rope 61, it is ensured that the linkage pull rope 61 will not be skewed during use, thereby ensuring stable use.

[0026] In summary, when in use, the worker hangs the device on the cable. Then, if he wants to continue to unfold the bracket 13 and use the device, he needs to insert the safety pin 4 into the main rod 1 to unfold the bracket 13 and use it. Otherwise, the bracket 13 cannot be unfolded.

[0027] Example 2: Please refer to Figures 1-15 The present invention provides a technical solution: on the basis of embodiment 1, a positioning member 7 for positioning the screw 42 and a moving member 8 in transmission connection with the positioning member 7 are further provided in the main rod 1. When the bracket 13 rotates to fit the main rod 1, the positioning member 7 can be driven by the moving member 8 to release the positioning of the screw 42. The positioning member 7 includes a fixed sleeve 71 fixedly arranged at the bottom end of the threaded sleeve 14, a positioning block 72 is slidably arranged in the fixed sleeve 71, a support spring 73 is fixedly connected to the bottom end of the positioning block 72, and the other end of the support spring 73 is connected to the fixed sleeve 71. The outer side of the screw 42 is provided with an annular groove 74 for use with the positioning block 72; The support spring 73 presses the positioning block 72 so that when the screw 42 is screwed into the threaded sleeve 14, the positioning block 72 can be engaged in the annular groove 74 of the screw 42, thereby limiting the reset of the screw 42, that is, when the positioning block 72 does not disengage from the annular groove 74, the safety pin 4 cannot be removed.

[0028] The moving part 8 includes an elastic telescopic rod 81 fixedly arranged inside the main rod 1, and a moving block 82 is fixedly connected to the bottom end of the elastic telescopic rod 81. A transmission rope 83 is arranged between the moving block 82 and the positioning block 72. The two ends of the transmission rope 83 are respectively fixedly connected to the moving block 82 and the positioning block 72. An inclined groove 84 is provided on the outside of the moving block 82, and a push rod 85 is fixedly provided on the outside of the bracket 13. A through hole for the push rod 85 to pass through is provided on the main rod 1. When the bracket 13 is retracted, the push rod 85 squeezes the inclined groove 84 to drive the moving block 82 to move downward.

[0029] After using the device, the worker needs to put away the bracket 13. At this time, the top rod 85 on the bracket 13 squeezes the inclined groove 84 to drive the moving block 82 to move downward, and the moving block 82 drives the positioning block 72 to move downward through the transmission rope 83, thereby releasing the limit on the screw 42. That is, only when the bracket 13 is put away can the safety pin 4 be pulled out, and then the device can be removed from the cable, so that the worker must put away the bracket 13 after use, and then insert the limit plate 51 into the limit groove 53 to limit the bracket 13 for the next use. That is, when it is used next time, the safety pin 4 still needs to be installed before the bracket 13 can be unfolded and used.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A mobile power cable maintenance device, characterized by: It includes two main rods, a leg rest is provided in the middle of the two main rods, and a plurality of cross rods are provided at the bottom of the main rods; it also includes a connecting block fixedly arranged at the top end of the main rod, a limiting rod is provided on the connecting block, the limiting rod, the connecting block and the top end of the main rod form a U-shaped structure, and a pulley is rotatably provided in the U-shaped structure, a safety pin is provided on the limiting rod, and a socket is provided on the outer side of the top end of the main rod; it also includes a bracket rotatably provided on one side of the main rod, a limiting component is provided inside the main rod, and a linkage part is provided inside the top end of the main rod.

2. The mobile power supply cable maintenance equipment according to claim 1, characterized in that: The two main rods each include a straight segment one, a curved segment and a straight segment two. The straight segment one is located at the bottom of the main rod. The straight segment one is connected to the straight segment two through the curved segment, and the bending directions of the curved segments on the two main rods are opposite, so that the two limit rods are symmetrically arranged relative to the cable.

3. The mobile power supply cable maintenance equipment according to claim 1, characterized in that: A threaded sleeve is fixedly provided in the main rod, and the threaded sleeve is coaxially arranged with the socket. The safety pin includes an insertion rod movably arranged in the limit rod, and a handle is provided at one end of the insertion rod close to the limit rod. The other end of the insertion rod is fixedly connected to a screw rod, and the screw rod is threadedly connected to the threaded sleeve.

4. The mobile power supply cable repair equipment according to claim 1, characterized in that: A fixed block is fixedly provided on the outside of the two main rods, a rotating seat is provided on the outside of the fixed block, the rotating block is fixedly connected to the end of the bracket, the rotating block is rotatably connected to the rotating seat through a rotating shaft, and a fixed plate is provided at the bottom of the fixed block, and the fixed plate and the main rod are perpendicular to each other.

5. The mobile power supply cable maintenance equipment according to claim 4, characterized in that: The limit assembly includes a limit plate slidably arranged in the main rod, the end of the limit plate slides through the fixed block, one end of the limit plate located in the main rod is fixedly connected to the limit spring, the other end of the limit spring is fixedly connected to the inner side of the main rod, and the side wall of the rotating block is provided with a limit groove that is plugged into and cooperates with the limit plate.

6. The mobile power supply cable repair equipment according to claim 5, characterized in that: The linkage part includes a linkage pull rope arranged in the main rod, the top end of the linkage pull rope is fixedly connected to the top of the main rod, and the bottom end is fixedly connected to the limit plate. Guide parts are provided on the inner side of the bottom and the inside of the top of the main rod. The guide part located at the bottom of the main rod and the limit plate are in the same horizontal plane, and the end of the linkage pull rope bypasses the guide part and extends to the top of the main rod. Two groups of guide parts are provided on the inner side of the top of the main rod, and the two guide parts are respectively located on the same side of the linkage pull rope and on the upper and lower sides of the threaded sleeve.

7. The mobile power supply cable repair equipment according to claim 6, characterized in that: The guide member comprises a guide rod fixedly arranged inside the main rod, and a guide wheel is rotatably arranged on the end of the guide rod.

8. The mobile power cable repair equipment according to claim 7, characterized in that: The end of the screw is rotatably connected to a top block, the top block is truncated cone-shaped and has a plurality of wire grooves opened on the outer circumference, and the plurality of wire grooves are arranged in a circumferential array.

9. The mobile power cable repair equipment according to claim 3, characterized in that: The main rod is also provided with a positioning member for positioning the screw and a moving member in transmission connection with the positioning member. When the bracket rotates to fit the main rod, the positioning member can be driven by the moving member to release the positioning of the screw. The positioning member includes a fixed sleeve fixedly arranged at the bottom end of the threaded sleeve, a positioning block is slidably arranged in the fixed sleeve, a support spring is fixedly connected to the bottom end of the positioning block, the other end of the support spring is connected to the fixed sleeve, and an annular groove is opened on the outside of the screw rod for use with the positioning block.

10. The mobile power cable repair equipment according to claim 9, characterized in that: The moving part includes an elastic telescopic rod fixedly arranged inside the main rod, the bottom end of the elastic telescopic rod is fixedly connected to a moving block, a transmission rope is arranged between the moving block and the positioning block, and the two ends of the transmission rope are respectively fixedly connected to the moving block and the positioning block, an oblique groove is provided on the outside of the moving block, a push rod is fixedly provided on the outside of the bracket, and a through hole for the push rod to pass through is provided on the main rod. When the bracket is retracted, the push rod squeezes the oblique groove to drive the moving block to move downward.

Images