Storage type mobile test operation platform

Abstract

The invention discloses a storage type mobile test operation platform which comprises two unit supporting frames installed at the two ends of a telescopic connecting frame in the telescopic direction respectively, and a top containing frame and a bottom containing plate are connected to the two unit supporting frames. The lower portion of one unit supporting frame is connected with a turnover seat type pushing handle and two rear braking type walking wheels. The upper portion of the other unit supporting frame is connected with a cable winding and unwinding mechanism, and the lower portion of the other unit supporting frame is connected with two front braking type walking wheels. And the maintenance ladder and the insulating rod are both placed on the top placing frame and are respectively positioned on two sides of the telescopic connecting frame. According to the power transmission pole climbing device, the carrying amount of power maintenance instruments can be effectively increased, the quota of carrying personnel can be reduced, power transmission poles with different cross sections can be climbed according to needs, the mobility and free extensibility of maintenance personnel are improved, the difficulty of maintenance operation is reduced, and the safety of high-altitude operation is improved. The invention is suitable for the technical field of power system maintenance equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of power system maintenance equipment, and in particular, relates to a retractable mobile testing operation platform. Background Art

[0002] At present, in the operation of power system maintenance, it is necessary to carry and use a variety of different instruments, such as tool boxes, dielectric loss testers, insulation meggers, maintenance ladders, dielectric loss test lines and insulating rods. In this way, 1-2 people cannot carry the above instruments at one time, and inevitably need multiple people to cooperate to realize the operation of carrying and subsequent maintenance. In addition, when the power equipment and devices on the transmission pole are repaired, the maintenance personnel need to climb on the transmission pole. The existing climbing parts installed on the feet of the maintenance personnel cannot meet the climbing operation of the transmission pole with different cross sections, and when the maintenance personnel repair the equipment in the follow-up, the mobility and free extension of their bodies are poor, which increases the difficulty of the maintenance operation. Therefore, in order to improve the safety and operability of climbing and high-altitude maintenance operations, it is necessary to use a dedicated climbing machine, but the existing climbing machine is large in size, not conducive to handling, and has a high cost. Summary of the invention

[0003] The present invention provides a retractable mobile testing work platform, which is used to increase the carrying capacity of power maintenance equipment, reduce the quota of porters, and can climb transmission poles with different cross-sections as needed, so as to improve the mobility and free stretching of maintenance personnel, reduce the difficulty of maintenance work, and improve the safety of high-altitude work.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A foldable mobile testing work platform comprises two unit support frames respectively installed at the two ends of a telescopic connecting frame in a telescopic direction, a top placement frame and a bottom placement plate are detachably connected to the upper and lower ends of the two unit support frames respectively, an accommodating channel is formed between the top placement frame and the bottom placement plate, a flippable seat push handle and two rear brake-type running wheels are connected to the lower part of one of the unit support frames; a cable retracting mechanism is connected to the upper part of the other unit support frame, and two front brake-type running wheels are connected to the lower part of the unit support frame; an inspection ladder and an insulating rod are both placed on the top placement frame and are respectively located on both sides of the telescopic connecting frame.

[0006] Furthermore, the unit support frame includes a first support rod and a second support rod arranged up and down, a first connecting seat is respectively connected to both sides of the first support rod, and a second connecting seat is respectively connected to both sides of the second support rod, and the ends on the same side of the first support rod and the second support rod are connected via a connecting arm, the end of the telescopic connecting frame is connected to the first connecting seat and the second connecting seat, the top placement frame is connected to the first connecting seat, the bottom placement plate is connected to the second connecting seat, and the rear brake walking wheel and the front brake walking wheel are respectively installed on the corresponding second support rods.

[0007] Furthermore, a plurality of limiting grooves are provided at the ends of the first support rod and the second support rod, and these limiting grooves are evenly arranged along the circumference of the first support rod or the second support rod, and each limiting groove extends along the axial direction of the first support rod or the second support rod, and two limiting holes are provided on the connecting arm for connecting the first support rod and the second support rod respectively, and a plurality of limiting strips are evenly constructed along the circumference on the inner wall of each of the limiting holes, and when the end of the first support rod or the end of the second support rod is assembled in the limiting hole, the limiting strips are assembled one by one in the corresponding limiting grooves, the fastening bolt is threadedly connected to the end of the first support rod or the second support rod, and the bolt nut of the fastening bolt is locked on the connecting arm.

[0008] Furthermore, the telescopic connecting frame includes a plurality of articulated rod groups, each of the articulated rod groups includes a first articulated rod and a second articulated rod hinged to each other in the middle, and the ends of the first articulated rods of adjacent articulated rod groups are hinged to the ends of the corresponding second articulated rods; the ends of the first articulated rods of the articulated rod groups located at the ends are hinged to the corresponding connecting arms, and the ends of the second articulated rods of the articulated rod groups located at the ends are hinged to the corresponding first connecting seats or second connecting seats.

[0009] Furthermore, a telescopic rod is connected at the middle position of the telescopic connecting frame or between the seat push handle and the adjacent unit support frame, and the telescopic rod includes two connecting rods that are respectively threadedly connected to the two ends of the adjusting tube; the two connecting rods are connected to the ends of the first hinged rod and the ends of the second hinged rod at the corresponding positions of the telescopic connecting frame, or the two connecting rods are respectively connected to the seat push handle and the connecting arm; a first strip hole is opened at the position where the first connecting seat is connected to the corresponding second hinged rod, and a second strip hole is opened at the position where the second connecting seat is connected to the corresponding second hinged rod, and the first strip hole and the second strip hole both extend along the telescopic direction of the telescopic connecting frame, and a transfer shaft rotatably installed at the end of the second hinged rod passes through the corresponding first strip hole or the second strip hole, and a locking nut is threadedly connected to the transfer shaft.

[0010] Furthermore, the front brake type running wheel includes a first axially adjustable wheel body connected to a first ratchet transmission mechanism, the first ratchet transmission mechanism is connected to a first arc-shaped fastener through a first adapter seat, and the second support rod is clamped between the first adapter seat and the first arc-shaped fastener; the rear brake type running wheel includes a second axially adjustable wheel body connected to a second ratchet transmission mechanism, the second ratchet transmission mechanism is connected to a second arc-shaped fastener through a second adapter seat, and the second support rod is clamped between the second adapter seat and the second arc-shaped fastener; the first ratchet transmission mechanism and the second ratchet transmission mechanism have the same structure, and the first axially adjustable wheel body and the second axially adjustable wheel body have the same structure.

[0011] Furthermore, a connecting shaft is fixedly connected to the first adapter seat and moves radially along the second support rod and passes through the second support rod and the first arc-shaped fastener. A connecting nut is threadedly connected to the end of the connecting shaft away from the first adapter seat. First connecting ears are respectively constructed on both sides of the first adapter seat and on both sides of the first arc-shaped fastener, and an arc-shaped hole is opened on each of the first connecting ears; second connecting ears are respectively constructed on both sides of the second adapter seat and on both sides of the second arc-shaped fastener, and the corresponding second connecting ears are connected by fixing bolts, and the second support rod is fastened between the second adapter seat and the second arc-shaped fastener.

[0012] Furthermore, the first axially adjustable wheel body includes a base plate that is transmission-connected to the first ratchet transmission mechanism, and a plurality of first plug-in blocks that are evenly arranged along its circumference are constructed at one end of the base plate away from the first ratchet transmission mechanism. The base plate is connected to the adjusting plate via an elastic gripping member, and a plurality of second plug-in blocks that are evenly arranged along its circumference are constructed at one end of the adjusting plate close to the base plate, the first plug-in blocks and the second plug-in blocks are staggered, the elastic gripping member is sleeved outside the first plug-in blocks and the second plug-in blocks, and the axes of the elastic gripping member, the adjusting plate and the base plate coincide, the outer diameter of the elastic gripping member is larger than the outer diameter of the adjusting plate and the outer diameter of the base plate, and an adjusting screw is coaxially connected to the adjusting plate, and the adjusting screw is threadedly connected to the base plate.

[0013] Furthermore, the cable retracting mechanism includes two elastic rod groups installed on the first support rod along the axial direction of the first support rod, and a reeling shaft parallel to the first support rod is rotatably connected between the two elastic rod groups. Limiting plates are coaxially connected to both ends of the reeling shaft, and the outer circumferential surface of each limiting plate is abutted against the outer circumferential surface of the first support rod, and the cable is reeled on the reeling shaft.

[0014] Furthermore, the seat-type push handle includes a support portion with one end connected to the lower part of the unit support frame, and a hand push portion extending obliquely outward is constructed at the other end of the support portion, and multiple parallel cross braces are arranged in the support portion and the hand push portion.

[0015] Since the present invention adopts the above-mentioned structure, the technical progress achieved by it compared with the prior art is that: the present invention forms a complete vehicle body through a telescopic connecting frame, two unit support frames, two rear brake-type running wheels and two front brake-type running wheels, and the vehicle body is layered by a top placement frame and a bottom placement plate, that is, the top placement frame and the bottom placement plate divide the vehicle body into upper and lower layers, and various maintenance equipment are respectively arranged on the upper and lower layers, and the overall length of the vehicle body and the distance between the top placement frame and the bottom placement plate can be adjusted according to the telescopic amount of the telescopic connecting frame, thereby adjusting the capacity of the vehicle body to ensure that the required maintenance equipment is loaded at one time. In this way, only one person is required to push the vehicle body to the maintenance point by pushing the seat push handle. When the present invention is used to inspect and repair the power equipment on the transmission pole, the top placement frame and the bottom placement plate are disassembled, and the seat pusher is turned 180 degrees. After that, the vehicle body is set vertically so that the transmission pole is located in the accommodating channel, and the seat pusher is located on the unit support frame below. In this way, the maintenance personnel sit on the seat pusher and push the upper unit support frame upward vertically, and the synchronous telescopic connection frame gradually extends. When the upper unit support frame is displaced to a certain height, the upper unit support frame is grasped at the lower position, and the external force applied to the unit support frame causes it to be stuck on the transmission pole; then, the maintenance personnel use their legs to guide the lower unit support frame upward, and the synchronous telescopic connection frame gradually shrinks; when the lower unit support frame is displaced to a certain height, the above actions are fully performed, so that the two unit support frames alternately rise until they reach the predetermined position, and then the maintenance operation is carried out. After the maintenance is completed, the two unit support frames are controlled to alternately descend. In summary, the present invention can effectively increase the carrying capacity of power maintenance equipment, reduce the quota of porters, and can climb transmission poles with different cross-sections as needed. When performing high-altitude maintenance work, the maintenance personnel can sit on the seat push handle, and the weight of the maintenance personnel acts on the unit support frame located below through the seat push handle, so that the unit support frame located below can be firmly fixed on the transmission pole, thereby improving the mobility and free stretching of the maintenance personnel, reducing the difficulty of maintenance work, and improving the safety of high-altitude work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 A structural side view of an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the middle portion of the telescopic connecting frame connected to the telescopic rod according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of an embodiment of the present invention after removing the top placement frame, the bottom placement plate and the cable retracting mechanism;

[0022] Figure 5 It is a schematic diagram of the structure after the first support rod and the connecting arm in the unit support frame of the embodiment of the present invention are separated;

[0023] Figure 6 It is a structural schematic diagram of the connection between the front brake type running wheel and the second support rod according to an embodiment of the present invention;

[0024] Figure 7 for Figure 6 A schematic diagram of another angle of the structure shown;

[0025] Figure 8 for Figure 6 a side view of the structure shown;

[0026] Fig. 9 This is a schematic diagram of the structure of the disassembled front brake type running wheel according to an embodiment of the present invention;

[0027] Fig.10 It is a structural schematic diagram of the first ratchet transmission mechanism in the front brake type running wheel according to an embodiment of the present invention;

[0028] Fig.11 This is a schematic structural diagram of a rear brake type running wheel according to an embodiment of the present invention;

[0029] Fig.12 This is a schematic diagram of the structure of a top-placed frame according to an embodiment of the present invention;

[0030] Fig.13 It is a structural schematic diagram of the connection between the cable retracting and releasing mechanism and the first supporting rod according to an embodiment of the present invention;

[0031] Fig.14 This is a schematic diagram of the structure of climbing on a transmission pole according to an embodiment of the present invention;

[0032] Fig.15 for Fig.14 a side view of the structure shown;

[0033] Fig.16 It is a schematic diagram of the local structure of installing the grinding roller on the first support rod according to an embodiment of the present invention.

[0034] Labeled parts: 100-unit support frame, 101-second support rod, 102-second connecting seat, 103-first support rod, 104-first connecting seat, 105-connecting arm, 106-second strip hole, 107-first strip hole, 108-limiting groove, 109-limiting hole, 110-limiting bar, 111-fastening bolt, 112-grinding roller, 200-telescopic connecting frame, 201-first hinged rod, 202-second hinged rod, 300-telescopic rod, 301-adjusting tube, 302-connecting rod, 303-stop edge, 304-first hinge ring, 305-fastening nut, 400-seat push handle, 401-support part, 402-hand push part, 403-cross brace rod, 404-second hinge ring, 500-front brake walking wheel, 501-first axial adjustable wheel body, 5011-base plate, 5012-first plug-in block, 5013-adjusting plate, 5014-second plug-in block, 5015-elastic gripper, 5016-axle tube, 5017-annular groove, 502-first ratchet transmission mechanism, 5021 - ratchet body, 5022-adjusting block, 5023-operating shaft, 5024-elastic push rod, 5025-transmission block, 5026-sealing cover, 503-first adapter, 504-first arc-shaped fastener, 505-connecting shaft, 506-connecting nut, 507-arc-shaped hole, 508-adjusting screw, 509-positioning hole, 510-operating handle, 5101-connecting sleeve, 5102-operating tube, 5103-positioning head, 511-adapting flange, 600-rear brake walking wheel, 601-second shaft Adjustable wheel body, 602-second ratchet transmission mechanism, 603-second adapter, 604-second arc fastener, 700-bottom placement plate, 800-top placement frame, 801-frame body, 802-connection outer edge, 803-placement inner edge, 804-partition rib, 805-fixing ear, 806-hook bent plate, 900-cable retracting and releasing mechanism, 901-limiting plate, 902-reeling shaft, 903-adapter sleeve, 904-plug-in tube, 905-plug-in rod, 906-hoop, 1000-transmission pole. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] The present invention discloses a retractable mobile testing operation platform, such as Figure 1-16As shown, it includes a telescopic connection frame 200, a seat push handle 400, a cable retracting mechanism 900 and two unit support frames 100. Among them, the two unit support frames 100 are respectively installed at the two ends of the telescopic connection frame 200 in the telescopic direction, so that the two unit support frames 100 and the telescopic connection frame 200 construct a basic frame, and the bottom placement plate 700 is detachably connected to the lower ends of the two unit support frames 100, and the top placement frame 800 is detachably connected to the upper ends of the two unit support frames 100, and a accommodating channel is formed between the top placement frame 800 and the bottom placement plate 700. In the present invention, a reversible seat push handle 400 and two rear brake-type running wheels 600 are connected to the lower part of one of the unit support frames 100; a cable retracting mechanism 900 is connected to the upper part of the other unit support frame 100, and two front brake-type running wheels 500 are connected to the lower part of the unit support frame 100. Longer maintenance equipment such as maintenance ladders and insulating rods are placed on the top placement frame 800, and the maintenance ladders, insulating rods, etc. are respectively located on both sides of the telescopic connection frame 200, so as to facilitate taking and avoid scratching nearby objects due to excessive lateral extension during transportation. The working principle and advantages of the present invention are: the present invention forms a complete vehicle body through the telescopic connection frame 200, two unit support frames 100, two rear brake-type running wheels 600 and two front brake-type running wheels 500, and the vehicle body is layered by the top placement frame 800 and the bottom placement plate 700, that is, the top placement frame 800 and the bottom placement plate 700 divide the vehicle body into upper and lower layers, and each maintenance equipment is respectively arranged on the upper and lower layers, and the overall length of the vehicle body and the spacing between the top placement frame 800 and the bottom placement plate 700 can be adjusted according to the telescopic amount of the telescopic connection frame 200, thereby adjusting the capacity of the vehicle body to ensure that the required maintenance equipment is loaded at one time, so that only one person is required to push the vehicle body to the maintenance point by pushing the seat pusher 400. When the power equipment on the transmission pole 1000 is inspected and repaired, the top placement frame 800 and the bottom placement plate 700 are disassembled, and the seat pusher 400 is turned 180 degrees. After that, the vehicle body is set vertically so that the transmission pole 1000 is located in the accommodating channel, and the seat pusher 400 is located on the unit support frame 100 below. In this way, the maintenance personnel sit on the seat pusher 400 and push the upper unit support frame 100 upward vertically. The synchronous telescopic connecting frame 200 gradually extends. When the upper unit After the support frame 100 is displaced to a certain height, the upper unit support frame 100 is grasped at the lower position, and the external force applied to the unit support frame 100 causes it to be stuck on the transmission pole 1000; then, the maintenance personnel use their legs to lead the lower unit support frame 100 to move upward, and the synchronous telescopic connecting frame 200 gradually shrinks; when the lower unit support frame 100 is displaced to a certain height, the above actions are fully performed, so that the two unit support frames 100 rise alternately until they reach the predetermined position, and then the maintenance work is carried out.After the inspection is completed, the two unit support frames 100 are controlled to descend alternately. In summary, the present invention can effectively increase the carrying capacity of power inspection equipment, reduce the quota of porters, and can climb transmission poles 1000 with different cross-sections as needed. When the inspection personnel perform high-altitude inspection operations, they can sit on the seat push handle 400, and the weight of the inspection personnel acts on the unit support frame 100 located below through the seat push handle 400, so that the unit support frame 100 located below can be firmly fixed on the transmission pole 1000, thereby improving the mobility and free extension of the inspection personnel, reducing the difficulty of the inspection operation, and improving the safety of high-altitude operations.

[0037] As a preferred embodiment of the present invention, Figure 2-4 As shown, the unit support frame 100 includes a first support rod 103, a second support rod 101 and two connecting arms 105. The first support rod 103 and the second support rod 101 are arranged in an upper and lower manner, and the first connecting seat 104 is connected to both sides of the first support rod 103, and the second connecting seat 102 is connected to both sides of the second support rod 101. The two connecting arms 105 are respectively arranged at the two ends of the first support rod 103, and the ends on the same side of the first support rod 103 and the second support rod 101 are connected together through the corresponding connecting arms 105. The first support rod 103, the second support rod 101 and the two connecting arms 105 constitute a rectangular frame. The ends of the telescopic connecting frame 200 of this embodiment are connected to the corresponding first connecting seat 104 and the second connecting seat 102, the top placement frame 800 is connected to the first connecting seat 104, the bottom placement plate 700 is connected to the second connecting seat 102, and each rear brake type running wheel 600 and each front brake type running wheel 500 are respectively installed on the corresponding second support rod 101. like Fig.12As shown, the top placement frame 800 of this embodiment includes a frame body 801, and a connecting outer edge 802 and a placement inner edge 803 are respectively constructed at the lower end of the frame body 801. The connecting outer edge 802 is detachably connected to each first connecting seat 104, and a plurality of partition ribs 804 are respectively constructed at intervals on both sides of the frame body 801 along the telescopic direction of the telescopic connecting frame 200. The lower end of each partition rib 804 is fixedly welded to the placement inner edge 803. These partition ribs 804 divide the frame body 801 into a plurality of hollow placement grooves. Maintenance equipment such as tool boxes, dielectric loss testers, and insulation meggers can be placed in the corresponding placement grooves, and the lower ends of these maintenance equipment are supported by the placement inner edge 803. In this embodiment, four fixing ears 805 are constructed on the connecting outer edge 802. These four fixing ears 805 are respectively arranged at the four corners of the connecting outer edge 802. Each fixing ear 805 is detachably connected to a hook bent plate 806. The hook bent plate 806 is located on the side of the telescopic connecting frame 200. The lower part of the hook bent plate 806 is bent upward. Longer maintenance equipment such as an inspection ladder and an insulating rod are placed on the two hook bent plates 806 on the same side. In order to enable the hook bent plate 806 to effectively restrain the inspection ladder, the insulating rod, etc., the lower bending part of the hook bent plate 806 is an elastic metal plate, and the upper end of the elastic metal plate extends obliquely toward the body of the hook bent plate 806. In this way, when the inspection ladder, the insulating rod, etc. are placed on the bending part of the hook bent plate 806, the elastic metal plate has a certain elastic binding force.

[0038] As a preferred embodiment of the present invention, Figure 4 , 5As shown, the connection mode of the first support rod 103 and the second support rod 101 with the connecting arm 105 is the same as the connection mode of the seat-type push handle 400 with the two second connecting seats 102. Specifically, a plurality of limiting grooves 108 are provided at the ends of the first support rod 103 and the second support rod 101, and these limiting grooves 108 are evenly arranged along the circumference of the first support rod 103 or the second support rod 101, and each limiting groove 108 extends along the axial direction of the first support rod 103 or the second support rod 101, and two limiting holes 109 are provided on the connecting arm 105, and these two limiting holes 109 are respectively used to connect the ends of the first support rod 103 and the ends of the second support rod 101, and a plurality of limiting strips 110 are evenly constructed on the inner wall of each limiting hole 109 along its circumference. When the end of the first support rod 103 or the end of the second support rod 101 is assembled in the limiting hole 109, the limiting bars 110 are assembled in the corresponding limiting grooves 108 one by one, the fastening bolts 111 are threadedly connected to the ends of the first support rod 103 or the second support rod 101, and the bolt caps of the fastening bolts 111 are locked on the connecting arm 105, thereby realizing the fastening connection between the first support rod 103 or the second support rod 101 and the connecting arm 105, and avoiding the relative rotation or axial movement between the first support rod 103 or the second support rod 101 and the connecting arm 105. In this embodiment, the vertical relative distance and the horizontal relative distance of the first support rod 103 or the second support rod 101 are adjusted by adjusting the inclination angle of the connecting arm 105. During the adjustment process, the telescopic connecting frame 200 is also correspondingly extended and retracted to adapt to the adjustment of the inclination angle of the connecting arm 105, so that the height and length of the entire vehicle body are adjusted, thereby changing the loading capacity of the vehicle body. In this embodiment, when climbing the transmission pole 1000, the components of the unit support frame 100 that mainly act on the transmission pole 1000 are the first support rod 103 and the second support rod 101. In order to ensure that the first support rod 103 and the second support rod 101 can be firmly fixed to the transmission pole 1000 when the unit support frame 100 is subjected to a downward deflection force, when the entire vehicle body is set vertically, the first support rod 103 and the second support rod 101 are not located on the same horizontal plane, that is, the first support rod 103 is higher than the second support rod 101; when the inclination angle of the connecting arm 105 is adjusted, the horizontal spacing and the vertical spacing between the first support rod 103 and the second support rod 101 are changed, thereby achieving the purpose of climbing on the transmission pole 1000 with different radial lengths, and the locking ability of the first support rod 103 and the second support rod 101 on the transmission pole 1000 can be adjusted to avoid safety accidents during climbing.

[0039] As a preferred embodiment of the present invention, Figure 2-4As shown, the telescopic connecting frame 200 includes a plurality of articulated rod groups, each articulated rod group includes a first articulated rod 201 and a second articulated rod 202, the middle of the first articulated rod 201 and the middle of the second articulated rod 202 are articulated together, and the ends of the first articulated rods 201 of two adjacent articulated rod groups are articulated with the ends of the corresponding second articulated rods 202. The ends of the first articulated rods 201 of the articulated rod group at the end are articulated with the corresponding connecting arms 105, and the ends of the second articulated rods 202 of the articulated rod group at the end are articulated with the corresponding first connecting seats 104 or second connecting seats 102. When the inclination angle of the connecting arm 105 is adjusted, the telescopic connecting frame 200 is telescoped and the position changes accordingly; when the angle of the connecting arm 105 is not adjusted, the distance between the two unit support frames 100 can be adjusted by adjusting the telescopic amount of the telescopic connecting frame 200, thereby adjusting the length of the entire vehicle body. In this embodiment, a telescopic rod 300 is connected at the middle position of the telescopic connecting frame 200 or between the seat push handle 400 and the adjacent unit support frame 100; the telescopic rod 300 has two functions. The first function is to install it at the middle position of the telescopic connecting frame 200 when pushing the entire vehicle body, and cooperate with the bottom placement plate 700 and the top placement frame 800 to lock the relative position of the telescopic connecting frame 200 and the two unit support frames 100 to avoid deformation; the second function is to climb on the transmission pole 1000, such as Fig.14 , 15As shown, it is installed between the seat push handle 400 and the adjacent unit support frame 100, and is used to strengthen the connection strength between the seat push handle 400 and the unit support frame 100, and serves as protection on both sides of the seat push handle 400 to prevent the maintenance personnel from falling sideways, and when it is necessary to drive the lower unit support frame 100 to move upward, the maintenance personnel can hook the two telescopic rods 300 with their feet to move upward. The telescopic rod 300 of this embodiment includes an adjustment tube 301 and two connecting rods 302, which are respectively threadedly connected to the two ends of the adjustment tube 301, and the two connecting rods 302 are moved closer or farther away from each other by rotating the adjustment rod. At the middle position of the telescopic connecting frame 200, two corresponding first hinged rods 201 and second hinged rods 202 are respectively connected to the first hinged rings 304 at the hinged ends. Two connecting rods 302 extend out of the two first hinged rings 304. A stop edge 303 is constructed on each connecting rod 302. The stop edge 303 abuts against the end of the first hinged ring 304 close to the adjustment tube 301. A fastening nut 305 is threadedly connected to the connecting rod 302. The fastening nut 305 is screwed on the end of the first hinged ring 304 away from the adjustment tube 301. The second hinged rings 404 are respectively connected to the two sides of the seat pusher 400. The two first hinged rings 304 can be detached and installed on the two corresponding connecting arms 105. When the transmission pole 1000 is climbed, the two connecting rods 302 are respectively connected to the second hinged ring 404 of the seat pusher 400 and the first hinged ring 304 of the connecting arm 105. In this embodiment, a first strip hole 107 is provided at the position where the first connection seat 104 is connected to the corresponding second hinge rod 202, and a second strip hole 106 is provided at the position where the second connection seat 102 is connected to the corresponding second hinge rod 202, wherein both the first strip hole 107 and the second strip hole 106 extend along the telescopic direction of the telescopic connection frame 200, and the transfer shaft rotatably mounted at the end of the second hinge rod 202 passes through the corresponding first strip hole 107 or second strip hole 106, and a locking nut is threadedly connected to the transfer shaft. In this embodiment, when the tilt angle of the connection arm 105 is adjusted, the position of the telescopic connection frame 200 changes accordingly, so that the transfer shaft can be adjusted to the corresponding first strip hole 107 or second strip hole 106 to adapt.

[0040] As a preferred embodiment of the present invention, Figure 6-11As shown, the front brake type running wheel 500 includes a first ratchet transmission mechanism 502, a first axially adjustable wheel body 501, a first adapter seat 503 and a first arc-shaped fastener 504. The first axially adjustable wheel body 501 is in transmission connection with the first ratchet transmission mechanism 502, the upper end of the first ratchet transmission mechanism 502 is connected and fixed to the lower end of the first adapter seat 503, the first adapter seat 503 and the first arc-shaped fastener 504 are detachably connected together, and the corresponding second support rod 101 is clamped between the first adapter seat 503 and the first arc-shaped fastener 504. The rear brake type running wheel 600 of this embodiment includes a second ratchet transmission mechanism 602, a second axially adjustable wheel body 601, a second adapter seat 603 and a second arc-shaped fastener 604. The second axially adjustable wheel body 601 is in transmission connection with the second ratchet transmission mechanism 602, the upper end of the second ratchet transmission mechanism 602 is fixedly connected with the lower end of the second adapter seat 603, the second adapter seat 603 is detachably connected with the second arc-shaped fastener 604, and the corresponding second support rod 101 is clamped between the second adapter seat 603 and the second arc-shaped fastener 604. The first ratchet transmission mechanism 502 and the second ratchet transmission mechanism 602 of this embodiment have the same structure, and the first axially adjustable wheel body 501 and the second axially adjustable wheel body 601 have the same structure. The first ratchet transmission mechanism 502 of this embodiment is the same as the transmission assembly of the ratchet wrench, and can be used to control the unidirectional rotation of the first axially adjustable wheel body 501 and / or the second axially adjustable wheel body 601. When the transmission pole 1000 is climbing or descending, the first axially adjustable wheel body 501 and / or the second axially adjustable wheel body 601 can be in contact with the outer surface of the transmission pole 1000 to replace the second support rod 101 in contact with the outer surface of the transmission pole 1000. During the climbing or descending process, the first axially adjustable wheel body 501 and / or the second axially adjustable wheel body 601 rotate in one direction. In particular, when climbing, the first axially adjustable wheel body 501 and / or the second axially adjustable wheel body 601 can roll upward along the outer surface of the transmission pole 1000. However, when subjected to a downward external force, the first axially adjustable wheel body 501 and / or the second axially adjustable wheel body 601 are braked to avoid sliding down.The specific structure of the first ratchet transmission mechanism 502 is that it includes a mounting shell, in which a ratchet body 5021, an adjustment block 5022, a transmission block 5025 and an elastic push rod 5024 are assembled, the ratchet body 5021 is coaxially fixed outside the shaft tube 5016, the shaft tube 5016 is coaxially fixed with the first axial adjustable wheel body 501, the transmission block 5025 is located between the adjustment block 5022 and the ratchet body 5021, a plurality of meshing teeth are constructed on one side of the transmission block 5025 close to the ratchet body 5021, and the adjustment block 5022 is mounted on the operating shaft 5023; The elastic push rod 5024 includes a push rod body and a connecting spring arranged in the adjusting block 5022, the connecting spring is connected to the push rod body, the push rod body is connected to the side of the transmission block 5025 away from the ratchet body 5021, and the operating shaft 5023 is rotated to drive the elastic push rod 5024 to rotate a certain angle through the adjusting block 5022, so that the elastic push rod 5024 moves the transmission block 5025 along the circumferential displacement of the ratchet body 5021 by a certain angle, so that the direction of the unidirectional rotation of the ratchet body 5021 is converted, thereby limiting the unidirectional rotation of the first axial adjustable wheel body 501. In this embodiment, a sealing cover 5026 is detachably connected to one end of the mounting shell away from the first axial adjustable wheel body 501, one end of the operating shaft 5023 vertically passes through the sealing cover 5026, and an operating handle 510 is installed at the end of the operating shaft 5023 that passes through it. By pulling the operating handle 510 to switch between two positions, the conversion of the unidirectional rotation restriction of the first axial adjustable wheel body 501 is realized. Among them, the operating handle 510 includes a connecting sleeve 5101 which is fixed on the operating shaft 5023, and an operating tube 5102 extending radially thereof is fixed on the connecting sleeve 5101. A fixing spring is installed in the operating tube 5102, and one end of the positioning head 5103 extends into the operating tube 5102 and is connected to one end of the fixing spring. Two positioning holes 509 are provided at one end of the first adapter 503 close to the operating handle 510. When the operating handle 510 is rotated to a predetermined position, the positioning head 5103 thereon extends into the corresponding positioning hole 509, thereby locking the position of the operating shaft 5023.

[0041] As a preferred embodiment of the present invention, in order to facilitate the steering of the entire vehicle body, the front brake type running wheel 500 is rotatable to a certain angle, specifically, as Figure 6 , 8As shown, a connecting shaft 505 is fixedly connected to the first adapter seat 503, and the connecting shaft 505 moves through the second support rod 101 and the first arc-shaped fastener 504 along the radial direction of the second support rod 101. A connecting nut 506 is threadedly connected to one end of the connecting shaft 505 away from the first adapter seat 503. First connecting ears are respectively constructed on both sides of the first adapter seat 503 and both sides of the first arc-shaped fastener 504, and an arc-shaped hole 507 is opened on each first connecting ear. When the first axially adjustable wheel body 501 needs to be able to rotate a certain angle along the connecting shaft 505, the connecting nut 506 is loosened, and the connecting screw connecting the corresponding two first connecting ears is in a state of not locking the two first connecting ears, so that the first axially adjustable wheel body 501 can rotate a certain angle along the connecting shaft 505. When climbing on the transmission pole 1000, after adjusting the angle of the first adapter 503 and the first arc-shaped fastener 504, tighten the connecting nut 506, and fasten the corresponding first connecting ear together, so that the first adapter 503 and the first arc-shaped fastener 504 clamp the second support rod 101, so that the relative position of the first axial adjustable wheel body 501 and the second support rod 101 is fixed, thereby avoiding the first axial adjustable wheel body 501 from twisting and causing safety accidents during climbing. In this embodiment, when climbing, the angle of the first axial adjustable wheel body 501 is adjusted to adapt to the corresponding model of the transmission pole 1000, so that the first axial adjustable wheel body 501 is fully in contact with the transmission pole 1000. In this embodiment, second connecting ears are respectively constructed on both sides of the second adapter 603 and the second arc-shaped fastener 604, and the corresponding second connecting ears are connected by fixing bolts, and the second support rod 101 is fastened between the second adapter 603 and the second arc-shaped fastener 604.

[0042] As a preferred embodiment of the present invention, Fig. 9As shown, the first axially adjustable wheel body 501 includes a base plate 5011, an adjusting plate 5013, an elastic gripper 5015 and an adjusting screw 508. The base plate 5011 is connected to the first ratchet transmission mechanism 502 through a shaft tube 5016, a plurality of first plug-in blocks 5012 are configured at one end of the base plate 5011 away from the first ratchet transmission mechanism 502, and these first plug-in blocks 5012 are evenly arranged along the circumference of the base plate 5011, and a plurality of second plug-in blocks 5014 are configured at one end of the adjusting plate 5013 close to the base plate 5011, and these second plug-in blocks 5014 are evenly arranged along the circumference of the adjusting plate 5013. The first plug-in blocks 5012 and the second plug-in blocks 5014 are staggered, that is, the first plug-in block 5012 is inserted between two adjacent second plug-in blocks 5014, and the second plug-in block 5014 is inserted between two adjacent first plug-in blocks 5012. The two ends of the elastic gripper 5015 are connected to the base plate 5011 and the adjusting plate 5013 respectively. The elastic gripper 5015 is sleeved outside the first plug-in block 5012 and the second plug-in block 5014 that are plugged into each other. The axes of the elastic gripper 5015, the adjusting plate 5013, the base plate 5011 and the shaft tube 5016 coincide. The outer diameter of the elastic gripper 5015 is larger than the outer diameter of the adjusting plate 5013 and the outer diameter of the base plate 5011. In this embodiment, a transfer flange 511 is configured on the adjusting screw 508. The transfer flange 511 extends outwardly along the radial direction of the adjusting screw 508. An annular groove 5017 is configured at the center of the adjusting plate 5013. The transfer flange 511 is rotatably assembled in the annular groove 5017. The end of the adjusting screw 508 away from the adjusting plate 5013 is threadedly connected in the shaft tube 5016. The elastic gripping member 5015 of the present embodiment rotates with the adjusting disk 5013 and the base disk 5011, thereby achieving the purpose of gripping on the ground and achieving the movement of the front brake-type running wheels 500 and the rear brake-type running wheels 600, and at this time, the elastic gripping member 5015 plays a role in increasing the friction force. When climbing on the transmission pole 1000, by rotating the adjusting screw 508, the distance between the adjusting disk 5013 and the base disk 5011 is increased, and the elastic gripping member 5015 is elastically stretched, so that the contact area with the outer surface of the transmission pole 1000 is increased, and the situation of slipping or falling is further prevented. The structure of the elastic gripping member 5015 of the present embodiment is in the form of a columnar spring, a corrugated spring, or a cylindrical mesh. Fig.16 As shown, the middle part of the first support rod 103 of this embodiment is in an interrupted state, and a grinding roller 112 is provided at the interruption. The two ends of the grinding roller 112 are detachably connected to the ends of the first support rod 103 that are close to each other. Before climbing, the grinding roller 112 is first removed, and then the power transmission pole 1000 is placed in the accommodating channel, and then the grinding roller 112 is installed on the first support rod 103. During the climbing process, the grinding roller 112 is in direct contact with the surface of the power transmission pole 1000.

[0043] As a preferred embodiment of the present invention, Fig.13 As shown, the cable retracting mechanism 900 includes a reel 902 and two elastic rod groups. The two elastic rod groups are installed on the first support rod 103 along the axial direction of the first support rod 103, and the reel 902 is rotatably connected between the two elastic rod groups, and the reel 902 is parallel to the first support rod 103. Limiting disks 901 are coaxially connected to both ends of the reel 902, and the outer peripheral surface of each limiting disk 901 is against the outer peripheral surface of the first support rod 103, and the cable is reeled on the reel 902. The elastic rod group of this embodiment includes a plug-in tube 904 and a plug-in rod 905. An adapter sleeve 903 is constructed on the outer peripheral wall of the plug-in tube 904. The end of the winding shaft 902 is rotatably connected to the adapter sleeve 903. An assembly spring is installed in the plug-in tube 904. One end of the plug-in rod 905 is movably inserted in the plug-in tube 904, and the end of the plug-in rod 905 is connected to the assembly spring. The other end of the plug-in rod 905 is connected to a clamp 906, and the clamp 906 is assembled on the first support rod 103. In this embodiment, the elastic tension of the assembly spring makes the limit plate 901 elastically abut against the first support rod 103. During the process of retracting and releasing the cable, the rotation of the winding shaft 902 is limited by the limit plate 901, so as to avoid the cable being retracted and released too quickly and becoming messy or knotted. In addition, the two limit plates 901 can effectively limit the range of cable reeling, so as to prevent the cable from being separated from the reel 902 during the reeling process.

[0044] As a preferred embodiment of the present invention, Figure 4 As shown, the seat push handle 400 includes a support portion 401 and a hand push portion 402, wherein one end of the support portion 401 is connected to the lower part of the unit support frame 100, and the other end of the support portion 401 is configured with a hand push portion 402 extending obliquely outward, and multiple parallel cross braces 403 are arranged in the support portion 401 and the hand push portion 402. When pushing the entire vehicle body forward, the maintenance personnel can push the hand push portion 402 by hand; when climbing on the transmission pole 1000, the support portion 401 of the flipped seat push handle 400 can be used for maintenance personnel to sit, and the hand push portion 402 is used for maintenance personnel to lean on, so as to prevent the maintenance personnel from falling off the seat push handle 400 due to leaning back too much and causing safety accidents.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A retractable mobile testing operation platform, characterized in that: It comprises two unit support frames respectively installed at the two ends of the telescopic connecting frame in the telescopic direction, a top placement frame and a bottom placement plate are detachably connected to the upper and lower ends of the two unit support frames, a accommodating channel is formed between the top placement frame and the bottom placement plate, a flip seat push handle and two rear brake type running wheels are connected to the lower part of one of the unit support frames; a cable retracting mechanism is connected to the upper part of the other unit support frame, and two front brake type running wheels are connected to the lower part of the unit support frame; an inspection ladder and an insulating rod are both placed on the top placement frame and are respectively located on both sides of the telescopic connecting frame.

2. The retractable mobile testing work platform according to claim 1, characterized in that: The unit support frame includes a first support rod and a second support rod arranged up and down, a first connecting seat is respectively connected to both sides of the first support rod, and a second connecting seat is respectively connected to both sides of the second support rod, and the ends on the same side of the first support rod and the second support rod are connected via a connecting arm, an end of the telescopic connecting frame is connected to the first connecting seat and the second connecting seat, a top placement frame is connected to the first connecting seat, a bottom placement plate is connected to the second connecting seat, and a rear brake walking wheel and a front brake walking wheel are respectively installed on the corresponding second support rods.

3. The retractable mobile testing operation platform according to claim 2, characterized in that: A plurality of limiting grooves are provided at the ends of the first support rod and the second support rod, and these limiting grooves are evenly arranged along the circumference of the first support rod or the second support rod, and each limiting groove extends along the axial direction of the first support rod or the second support rod, and two limiting holes are provided on the connecting arm for connecting the first support rod and the second support rod respectively, and a plurality of limiting strips are evenly constructed along the circumference on the inner wall of each of the limiting holes, when the end of the first support rod or the end of the second support rod is assembled in the limiting hole, the limiting strips are assembled one by one in the corresponding limiting grooves, the fastening bolt is threadedly connected to the end of the first support rod or the second support rod, and the bolt nut of the fastening bolt is locked on the connecting arm.

4. The retractable mobile testing work platform according to claim 2, characterized in that: The telescopic connecting frame includes a plurality of articulated rod groups, each of the articulated rod groups includes a first articulated rod and a second articulated rod which are hinged to each other in the middle, and the ends of the first articulated rods of adjacent articulated rod groups are hinged to the ends of the corresponding second articulated rods; the ends of the first articulated rods of the articulated rod groups located at the ends are hinged to the corresponding connecting arms, and the ends of the second articulated rods of the articulated rod groups located at the ends are hinged to the corresponding first connecting seats or second connecting seats.

5. The retractable mobile testing work platform according to claim 4, characterized in that: A telescopic rod is connected at the middle position of the telescopic connecting frame or between the seat push handle and the adjacent unit support frame, and the telescopic rod includes two connecting rods that are respectively threadedly connected to the two ends of the adjusting tube; the two connecting rods are connected to the ends of the first hinged rod and the second hinged rod at the corresponding positions of the telescopic connecting frame, or the two connecting rods are respectively connected to the seat push handle and the connecting arm; a first strip hole is opened at the position where the first connecting seat is connected to the corresponding second hinged rod, and a second strip hole is opened at the position where the second connecting seat is connected to the corresponding second hinged rod, the first strip hole and the second strip hole both extend along the telescopic direction of the telescopic connecting frame, and a transfer shaft rotatably installed at the end of the second hinged rod passes through the corresponding first strip hole or the second strip hole, and a locking nut is threadedly connected to the transfer shaft.

6. The retractable mobile testing operation platform according to claim 2, characterized in that: The front brake type running wheel includes a first axially adjustable wheel body connected to a first ratchet transmission mechanism, the first ratchet transmission mechanism is connected to a first arc-shaped fastener through a first adapter seat, and the second support rod is clamped between the first adapter seat and the first arc-shaped fastener; the rear brake type running wheel includes a second axially adjustable wheel body connected to a second ratchet transmission mechanism, the second ratchet transmission mechanism is connected to a second arc-shaped fastener through a second adapter seat, and the second support rod is clamped between the second adapter seat and the second arc-shaped fastener; the first ratchet transmission mechanism and the second ratchet transmission mechanism have the same structure, and the first axially adjustable wheel body and the second axially adjustable wheel body have the same structure.

7. The retractable mobile testing operation platform according to claim 6, characterized in that: A connecting shaft is fixedly connected to the first adapter seat and moves radially along the second support rod and passes through the second support rod and the first arc-shaped fastener. A connecting nut is threadedly connected to the end of the connecting shaft away from the first adapter seat. First connecting ears are respectively constructed on both sides of the first adapter seat and on both sides of the first arc-shaped fastener, and an arc-shaped hole is opened on each of the first connecting ears; second connecting ears are respectively constructed on both sides of the second adapter seat and on both sides of the second arc-shaped fastener, and the corresponding second connecting ears are connected by fixing bolts, and the second support rod is fastened between the second adapter seat and the second arc-shaped fastener.

8. The retractable mobile testing operation platform according to claim 6, characterized in that: The first axially adjustable wheel body includes a base disk which is transmission-connected to the first ratchet transmission mechanism, a plurality of first plug-in blocks which are evenly arranged along its circumference are constructed at one end of the base disk away from the first ratchet transmission mechanism, the base disk is connected to the adjusting disk via an elastic gripping member, a plurality of second plug-in blocks which are evenly arranged along its circumference are constructed at one end of the adjusting disk which is close to the base disk, the first plug-in blocks and the second plug-in blocks are staggeredly plugged in, the elastic gripping member is sleeved outside the first plug-in blocks and the second plug-in blocks, and the axes of the elastic gripping member, the adjusting disk and the base disk coincide, the outer diameter of the elastic gripping member is larger than the outer diameter of the adjusting disk and the outer diameter of the base disk, an adjusting screw is coaxially rotatably connected to the adjusting disk, and the adjusting screw is threadedly connected to the base disk.

9. The retractable mobile testing operation platform according to claim 2, characterized in that: The cable retracting mechanism includes two elastic rod groups installed on the first support rod along the axial direction of the first support rod, a reeling shaft parallel to the first support rod is rotatably connected between the two elastic rod groups, and limiting disks are coaxially connected to both ends of the reeling shaft, and the outer circumferential surface of each limiting disk is abutted against the outer circumferential surface of the first support rod, and the cable is reeled on the reeling shaft.

10. The retractable mobile testing operation platform according to claim 1, characterized in that: The seat push handle comprises a support portion with one end connected to the lower part of the unit support frame, a hand push portion extending obliquely outward is constructed at the other end of the support portion, and a plurality of parallel cross braces are arranged in the support portion and the hand push portion.

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