Maintenance car convenient for electric power maintenance

Abstract

The invention discloses a maintenance vehicle convenient for electric power maintenance, which comprises a maintenance frame, the inner side surface of the maintenance frame is hinged with a driving swing arm, the top end of the driving swing arm is hinged with a swing hinged support, the top surface of the swing hinged support is fixedly connected with a maintenance platform, the side surface of the driving swing arm is provided with a linkage swing arm, and the linkage swing arm is fixedly connected with the maintenance platform. A top block is fixedly connected to the surface of the inner side of the maintenance frame, side protective fences are hinged to the front side and the rear side of the maintenance platform correspondingly, turnover plates are fixedly connected to rotating shafts of the side protective fences, turnover push plates are slidably connected to the bottom ends of the turnover plates, and clamping rods are fixedly connected to the inner side faces of the turnover push plates. The device has the characteristics of high practicability and convenience in space extension.

Description

Technical Field

[0001] This invention relates to the field of power maintenance technology, specifically to a maintenance vehicle that facilitates power maintenance. Background Technology

[0002] Maintenance personnel need to inspect electrical equipment that has been in operation for a long time to prevent damage caused by aging of internal electrical components. In severe cases, this could lead to short circuits in the electrical lines, which could then cause overheating and fires. Therefore, it is necessary to conduct preventative maintenance in advance to avoid problems caused by power failures.

[0003] Patent application CN201811014261.3 discloses a power maintenance vehicle suitable for confined spaces, comprising a mobile vehicle equipped with hydraulic outriggers and a lifting platform fixed on the mobile vehicle. The lifting platform includes a scissor-type lifting mechanism, a support plate, and protective mechanisms mounted on the support plate. Multiple protective mechanisms are evenly distributed circumferentially on the upper surface of the support plate, forming a conical or cylindrical space and then fixed by connecting components. This invention improves the working platform, achieving lightweight design and suitability for confined spaces, while ensuring practicality and safety. However, it suffers from the problem of instability and swaying at the bottom and support structure due to the lifting structure extending to a high position. Therefore, it is necessary to design a more practical and convenient power maintenance vehicle that extends into the space. Summary of the Invention

[0004] The purpose of this invention is to provide a maintenance vehicle that facilitates power system maintenance, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a maintenance vehicle for convenient power maintenance, comprising a maintenance frame, a drive swing arm hinged to the inner side of the maintenance frame, a swing hinge seat hinged to the top of the drive swing arm, a maintenance platform fixedly connected to the top surface of the swing hinge seat, a linkage swing arm provided on the side of the drive swing arm, a top block fixedly connected to the inner surface of the maintenance frame, side guardrails hinged to both the front and rear sides of the maintenance platform, a flip plate fixedly connected to the pivot of the side guardrail, a flip push plate slidably connected to the bottom end of the flip plate, a locking rod fixedly connected to the inner side of the flip push plate, a sliding push rod slidably connected to the bottom surface of the maintenance platform, a return spring provided on the outer side of the sliding push rod, a thrust bending rod fixedly connected to the outer side of the sliding push rod, a waist groove opened on the side of the flip plate, and a plate-like structure at the downward extension of the maintenance platform, with the sliding push rod penetrating through the plate-like structure. One end of the rebound spring is fixed to the plate-like structure, and the other end of the rebound spring is fixedly connected to the thrust lever. The end of the sliding push rod is connected to a trapezoidal block, and the side of the thrust lever is fixedly connected to a corner block. The flip-up push plate is slidably connected to the maintenance platform. Through the above structure, when the maintenance platform descends, the end of the sliding push rod at the bottom of the maintenance platform contacts the top block, allowing the inclined surface of the trapezoidal block at the end of the sliding push rod to contact the top block, thereby allowing the sliding push rod to slide. Through sliding, the sliding push rod compresses the rebound spring, and the corner block of the thrust lever disengages from the locking rod, thereby allowing the two locking rods on both sides to move closer to each other. The movement of the locking rods drives the flip-up push plate to move, thereby causing the flip-up push plate to pull the flip-up plate and the side guardrail to deflect. This allows the protective locking structure connected to the side guardrail to contact and automatically deflect the side guardrail, keeping it tilted horizontally to facilitate worker access and improve the overall structural safety, preventing the side door from being forgotten to be locked.

[0006] According to the above technical solution, a lifting device is fixedly connected to the side of the maintenance platform. The lifting device includes a guide plate. A sprocket is rotatably connected to the top and front sides of the guide plate. A chain is meshed with the outer side of the sprocket. A sliding block is slidably connected to the inner side of the guide plate. A return spring is fixedly connected to the side of the sliding block. An extension plate is fixedly connected to the bottom side of the guide plate. An inner extension plate is slidably connected to the inner side of the extension plate. A fixed lifting ring is fixedly connected to the side of the chain. A sliding groove is formed in the middle of the inner side of the guide plate, and the sliding groove is slidably connected to the sliding block. The other end of the return spring is fixedly connected to the guide plate. A sprocket is also rotatably connected to the bottom side of the inner extension plate. A short rod extends downward from the bottom of the inner extension plate, located at the guide plate. A handle is connected to the sprocket shaft at the top of the corner plate. Through this structure, when the maintenance platform rises, the inner extension plate is no longer blocked by the drop baffle, allowing it to slide downwards under gravity. As the inner extension plate moves downwards, the side sprocket pulls the chain, causing it to extend downwards. Simultaneously, the sprocket on the side of the sliding block moves backwards and compresses the return spring. By rotating the handle on the side of the maintenance platform, the handle rotates, causing the sprocket and chain to rotate. This rotation moves the items fixed to the chain's side hanging ring upwards, transferring them to the maintenance platform. When the maintenance platform reaches its lowest point, the inner extension plate is blocked by the drop baffle, causing it to retract into the extension plate. At this point, the return spring pushes the sliding block to reset. Simultaneously with the lifting and lowering of the structure, the lifting structure automatically unfolds or retracts.

[0007] According to the above technical solution, the maintenance platform is provided with an extension device on its side. The extension device includes a protective baffle. Extended guardrails are fixedly connected to both the front and rear sides of the protective baffle. An extended base plate is fixedly connected to the bottom end of the protective baffle. A lever is slidably arranged on the side of the extended base plate. A return spring is provided on the inner side of the extended base plate. A lever linkage is fixedly connected to the side of the lever. The extended base plate is slidably connected to the bottom surface of the maintenance platform. One end of the extended base plate is a bevel. A spring groove is formed on the side of the extended base plate, and the return spring is located inside the spring groove. A spring stop is provided for side sliding, and the spring stop is fixedly connected to the bottom surface of the maintenance platform. The actuating linkage is L-shaped, and the top end of the actuating linkage is fixedly connected to the sliding block. The actuating linkage is located inside the inner wall and bottom surface of the maintenance platform. With the above structure, when the sliding block moves, it drives the actuating block connected to the end of the actuating linkage to move. The side of the actuating block contacts the inclined surface of the side of the extended base plate, thereby allowing the extended base plate to slide and extend from inside the bottom surface of the maintenance platform. At the same time, the protective baffle connected to the extended base plate also moves together, and the side of the protective baffle extends the guardrail and slides against the surface of the bottom plate of the maintenance platform.

[0008] According to the above technical solution, a stabilizing device is provided on the inner side of the maintenance frame. The stabilizing device includes a swing shaft. A lower pressure plate is provided at the middle position of the maintenance frame. A lower swing plate is fixedly connected to the surface of the lower pressure plate. A lower pressure rod is fixedly connected to the bottom end of the lower pressure plate. A stabilizing support plate is slidably connected to the bottom side of the lower pressure rod. A spring is fixedly connected to the top surface of the right end of the lower pressure plate. The swing shaft is fixedly connected to the bottom hinge shaft of the linkage swing arm. The side of the swing shaft opposite to the ground is arc-shaped. The stabilizing support plate is slidably connected to the maintenance frame. An inner groove extension plate is provided on the inner side of the maintenance frame. The top of the elastic spring is fixedly connected to the inner groove plate of the maintenance frame. The lower swing plate is located directly below the bottom pivot of the linkage swing arm. With the above structure, when the linkage swing arm is pushed by the hydraulic rod, the linkage swing arm rotates around the bottom hinge. At the same time, the bottom of the linkage swing arm rotates, causing the swing shaft to rotate, and then the swing shaft contacts the top edge of the lower swing plate. When the lower swing plate moves down, it causes the lower pressure plate to move down. At the same time, the lower pressure plate causes the lower pressure rod to press down on the stabilizing support plate, and then the stabilizing support plate contacts the ground. When the linkage swing arm is in the retracted state, the elastic spring pulls the lower pressure plate to reset the stabilizing support plate.

[0009] Compared with the prior art, the beneficial effects achieved by the present invention are: This invention, by incorporating a side guardrail, a flip plate, a flip push plate, a locking rod, a push lever, a sliding push rod, and a return spring, allows the protective locking structure connected to the side guardrail to engage, facilitating the deflection of the side guardrail and keeping it horizontally biased. This facilitates worker access while enhancing the overall structural safety and preventing the side door from being forgotten to be locked.

[0010] This invention, by incorporating a guide plate, sprocket, chain, sliding block, return spring, fixed lifting ring, extension plate, and inner extension plate, allows the lifting device to transfer the required tools or items from bottom to top, thus facilitating the transfer of repair parts or tools without the need to retrieve items via a lifting platform, thereby providing convenience for maintenance.

[0011] This invention, by incorporating a protective baffle, an extended base plate, a return spring, a lever, a lever linkage, an extended guardrail, and a spring stop, expands the space towards the construction side through its structure, thereby reducing the distance between the maintenance point and the platform where the worker is located, avoiding the need for secondary adjustments, and facilitating maintenance.

[0012] This invention, by incorporating a swing shaft, a lower swing plate, a lower pressure plate, a lower pressure rod, a stabilizing support plate, and a spring, increases the contact area between the bottom structure and the ground through structural downward pressure, and provides overall support through the downward pressure structure, thereby improving the stability of the overall structure. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the side guardrail flipping structure of the present invention; Figure 3 This is a schematic diagram of the lifting device of the present invention; Figure 4 This is a schematic diagram of the structure of the inner extension plate of the present invention; Figure 5 This is a schematic diagram of the structure of the extension device of the present invention; Figure 6 This is a schematic diagram of the stabilizing device of the present invention; In the diagram: 1. Inspection frame; 2. Drive swing arm; 3. Inspection platform; 4. Swing hinge; 5. Lifting device; 51. Guide angle plate; 52. Sprocket; 53. Chain; 54. Sliding block; 55. Return spring; 56. Fixed lifting ring; 57. Extension fixed plate; 58. Inner extension plate; 510. Extension device; 511. Protective baffle; 512. Extension base plate; 513. Return spring; 514. Pulley; 515. Pulley 516. Moving linkage rod; 517. Extended guardrail; 518. Spring stop block; 6. Linkage swing arm; 7. Top block; 8. Stabilizing device; 81. Swing shaft; 82. Lower swing plate; 83. Lower pressure plate; 84. Lower pressure rod; 85. Stabilizing support plate; 86. Elastic spring; 9. Side guardrail; 10. Flip plate; 11. Flip push plate; 12. Locking rod; 13. Thrust folding rod; 14. Sliding push rod; 15. Rebound spring; 16. Drop baffle. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-6The present invention provides a technical solution: a maintenance vehicle for convenient power maintenance, comprising a maintenance frame 1, a drive swing arm 2 hinged to the inner side of the maintenance frame 1, a swing hinge seat 4 hinged to the top of the drive swing arm 2, a maintenance platform 3 fixedly connected to the top surface of the swing hinge seat 4, a linkage swing arm 6 provided on the side of the drive swing arm 2, a top block 7 fixedly connected to the inner surface of the maintenance frame 1, and side guardrails 9 hinged to both the front and rear sides of the maintenance platform 3, with a flip-up mechanism fixedly connected to the pivot of the side guardrails 9. A flip plate 10 is slidably connected to the bottom end of the flip plate 10. A locking rod 12 is fixedly connected to the inner side of the flip plate 11. A sliding push rod 14 is slidably connected to the bottom surface of the maintenance platform 3. A return spring 15 is provided on the outer side of the sliding push rod 14. A thrust lever 13 is fixedly connected to the outer side of the sliding push rod 14. A waist groove is opened on the side of the flip plate 10. The downward extension of the maintenance platform 3 has a plate-like structure, and the sliding push rod 14 passes through the plate-like structure. One end of the return spring 15 is fixed to the plate-like structure. The other end of the spring 15 is fixedly connected to the thrust lever 13. A trapezoidal block is connected to the end of the sliding push rod 14, and a corner block is fixedly connected to the side of the thrust lever 13. The flip push plate 11 is slidably connected to the maintenance platform 3. Through the above structure, when the maintenance platform 3 descends, the end of the sliding push rod 14 at the bottom of the maintenance platform 3 contacts the top block 7, causing the inclined surface of the trapezoidal block at the end of the sliding push rod 14 to contact the top block 7, thereby allowing the sliding push rod 14 to slide. Through this sliding, the sliding push rod 14 compresses the spring 15. 5. The corner block of the push lever 13 disengages from the locking lever 12, causing the two locking levers 12 to move closer together. The movement of the locking lever 12 drives the flipping push plate 11 to move, which in turn pulls the flipping plate 10 to deflect the side guardrail 9. This causes the protective locking structure connected to the side guardrail 9 to contact and automatically deflect the side guardrail 9, keeping it tilted horizontally to facilitate worker access and improve the overall structural safety, preventing the side door from being forgotten to be locked.

[0016] A lifting device 5 is fixedly connected to the side of the maintenance platform 3. The lifting device 5 includes a guide plate 51. A sprocket 52 is rotatably connected to the top and front sides of the guide plate 51. A chain 53 is meshed with the outer side of the sprocket 52. A sliding block 54 is slidably connected to the inner side of the guide plate 51. A return spring 55 is fixedly connected to the side of the sliding block 54. An extension plate 57 is fixedly connected to the bottom side of the guide plate 51. An inner extension plate 58 is slidably connected to the inner side of the extension plate 57. A fixed lifting ring 56 is fixedly connected to the side of the chain 53. A sliding groove is opened in the middle of the inner side of the guide plate 51, and the sliding groove is slidably connected to the sliding block 54. The other end of the return spring 55 is fixedly connected to the guide plate 51. A sprocket 52 is also rotatably connected to the bottom side of the inner extension plate 58. A short rod extends downward from the bottom of the inner extension plate 58. A handle is connected to the shaft of the sprocket 52 at the top of the guide plate 51. With the above structure, as the maintenance platform 3 rises, the inner extension plate 58 is no longer blocked by the falling baffle 16, allowing it to slide downwards under gravity. As the inner extension plate 58 moves downwards, the side sprocket 52 pulls the chain 53, causing it to extend downwards. Simultaneously, the sprocket 52 on the side of the sliding block 54 moves backwards and presses the return spring 55. By rotating the handle on the side of the maintenance platform 3, the handle rotates, causing the sprocket 52 and chain 53 to rotate. The items fixed by the hanging ring 56 on the side of the chain 53 are then moved upwards via the chain 53, transferring them to the maintenance platform 3. When the maintenance platform 3 falls to its lowest point, the inner extension plate 58 is blocked by the falling baffle 16, causing it to retract into the extension plate 57. At this time, the return spring 55 pushes the sliding block 54 to reset. The lifting structure automatically unfolds or retracts during the lifting process.

[0017] An extension device 510 is provided on the side of the maintenance platform 3. The extension device 510 includes a protective baffle 511. Extended guardrails 516 are fixedly connected to both the front and rear sides of the protective baffle 511. An extended base plate 512 is fixedly connected to the bottom end of the protective baffle 511. A lever 514 is slidably arranged on the side of the extended base plate 512. A return spring 513 is provided on the inner side of the extended base plate 512. A lever connecting rod 515 is fixedly connected to the side of the lever 514. The extended base plate 512 is slidably connected to the bottom surface of the maintenance platform 3. One end of the extended base plate 512 is a bevel. A spring groove is opened on the side of the extended base plate 512, and the return spring 513 is located inside the spring groove. A spring stop is slidably arranged inside the spring groove. 517, the spring stop 517 is fixedly connected to the bottom surface of the maintenance platform 3, the actuating linkage 515 is L-shaped, the top of the actuating linkage 515 is fixedly connected to the sliding block 54, the actuating linkage 515 is located inside the inner wall and bottom surface of the maintenance platform 3. Through the above structure, when the sliding block 54 moves, it drives the actuating block 514 connected to the end of the actuating linkage 515 to move. The side of the actuating block 514 contacts the inclined surface of the side of the extension base plate 512, thereby allowing the extension base plate 512 to slide and extend from the bottom surface of the maintenance platform 3. At the same time, the protective baffle 511 connected to the extension base plate 512 also moves together, and the side of the protective baffle 511 extends the guardrail 516 to slide with the bottom surface of the maintenance platform 3.

[0018] A stabilizing device 8 is provided on the inner side of the maintenance frame 1. The stabilizing device 8 includes a swing shaft 81. A lower pressure plate 83 is provided in the middle of the maintenance frame 1. A lower swing plate 82 is fixedly connected to the surface of the lower pressure plate 83. A lower pressure rod 84 is fixedly connected to the bottom end of the lower pressure plate 83. A stabilizing support plate 85 is slidably connected to the bottom side of the lower pressure rod 84. A spring spring 86 is fixedly connected to the top surface of the right end of the lower pressure plate 83. The swing shaft 81 is fixedly connected to the bottom hinge shaft of the linkage swing arm 6. The side of the swing shaft 81 opposite to the ground is arc-shaped. The stabilizing support plate 85 is slidably connected to the maintenance frame 1. An inner groove extension plate is provided on the inner side of the maintenance frame 1. The top end of the spring spring 86 is connected to the maintenance frame 1. The inner groove plate of frame 1 is fixedly connected, and the lower swing plate 82 is located directly below the bottom pivot of the linkage arm 6. Through the above structure, when the linkage arm 6 is pushed by the hydraulic rod, the linkage arm 6 rotates around the bottom hinge. At the same time, the bottom of the linkage arm 6 rotates, causing the swing shaft 81 to rotate, and then the swing shaft 81 contacts the top edge of the lower swing plate 82. When the lower swing plate 82 moves down, it drives the lower pressure plate 83 to move down. At the same time, the lower pressure plate 83 drives the lower pressure rod 84 to press down the stabilizing support plate 85, and then the stabilizing support plate 85 contacts the ground. When the linkage arm 6 is in the retracted state, the spring spring 86 pulls the lower pressure plate 83 to reset the stabilizing support plate 85.

[0019] Working principle: When the maintenance platform 3 descends, the end of the sliding push rod 14 at the bottom of the maintenance platform 3 contacts the top block 7, causing the inclined surface of the trapezoidal block at the end of the sliding push rod 14 to contact the top block 7, thereby allowing the sliding push rod 14 to slide. Through sliding, the sliding push rod 14 compresses the rebound spring 15, and causes the corner block of the thrust lever 13 to disengage from the locking rod 12. Then, the side guardrail 9 can be pushed by hand to bring the two locking rods 12 closer together. Alternatively, an elastic element can be set to reset the locking rods 12. The movement of the locking rods 12 drives the flipping push plate 11 to move, thereby causing the flipping push plate 11 to pull the flipping plate 10 and the side guardrail 9 to deflect. This causes the protective locking structure connected to the side guardrail 9 to contact and automatically deflects the side guardrail 9, keeping the side guardrail 9 tilted horizontally. As the maintenance platform 3 rises, the inner extension plate 58 is no longer blocked by the falling baffle 16, allowing it to slide downwards under gravity. As the inner extension plate 58 moves downwards, the side sprocket 52 pulls the chain 53, causing it to extend downwards. Simultaneously, the sprocket 52 on the side of the sliding block 54 moves backwards and compresses the reset spring 55. By rotating the handle on the side of the maintenance platform 3, the handle rotates, causing the sprocket 52 and chain 53 to rotate. The items fixed by the hanging ring 56 on the side of the chain 53 are then moved upwards via the chain 53, transferring them to the maintenance platform 3. When the maintenance platform 3 falls to its lowest point, the inner extension plate 58 is blocked by the falling baffle 16, causing it to retract into the extension plate 57. At this point, the reset spring 55 pushes the sliding block 54 to reset. As the sliding block 54 moves, it drives the lever block 514 connected to the end of the lever 515 to move. The side of the lever block 514 contacts the inclined surface of the side of the extension base plate 512, thereby allowing the extension base plate 512 to slide and extend from the inside of the bottom surface of the maintenance platform 3. At the same time, the protective baffle 511 connected to the extension base plate 512 also moves together, and the side of the protective baffle 511 extends the guardrail 516 to slide with the surface of the bottom plate of the maintenance platform 3. When the linkage arm 6 is pushed by the hydraulic rod, it rotates around the bottom hinge. At the same time, the rotation of the bottom of the linkage arm 6 drives the swing shaft 81 to rotate, which in turn makes the swing shaft 81 contact the top edge of the lower swing plate 82. As the lower swing plate 82 moves down, it drives the lower pressure plate 83 to move down. At the same time, the lower pressure plate 83 drives the lower pressure rod 84 to press down the stabilizing support plate 85, which in turn makes the stabilizing support plate 85 contact the ground. When the linkage arm 6 is in the retracted state, the spring spring 86 pulls the lower pressure plate 83 to reset the stabilizing support plate 85.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A service vehicle for facilitating power service, comprising a service vehicle frame (1), characterized in that: The inner side of the maintenance frame (1) is hinged to a drive swing arm (2), the top of the drive swing arm (2) is hinged to a swing hinge seat (4), the top surface of the swing hinge seat (4) is fixedly connected to a maintenance platform (3), the side of the drive swing arm (2) is provided with a linkage swing arm (6), the inner surface of the maintenance frame (1) is fixedly connected to a top block (7), the front and rear sides of the maintenance platform (3) are hinged to side guardrails (9), the pivot of the side guardrail (9) is fixedly connected to a flip plate (10), the bottom end of the flip plate (10) is slidably connected to a flip push plate (11), the inner side of the flip push plate (11) is fixedly connected to a locking rod (12), the bottom surface of the maintenance platform (3) is slidably connected to a sliding push rod (14), the outer side of the sliding push rod (14) is provided with a rebound spring (15), and the outer side of the sliding push rod (14) is fixedly connected to a thrust bending rod (13).

2. The service vehicle of claim 1, wherein: The flip plate (10) has a waist groove on its side. The maintenance platform (3) has a plate-like structure extending downwards, and the sliding push rod (14) passes through the plate-like structure. One end of the rebound spring (15) is fixed to the plate-like structure, and the other end of the rebound spring (15) is fixedly connected to the thrust bending rod (13). The end of the sliding push rod (14) is connected to a trapezoidal block, and the side of the thrust bending rod (13) is fixedly connected to a corner block. The flip plate (11) is slidably connected to the maintenance platform (3).

3. The service vehicle of claim 2, wherein: The maintenance platform (3) is fixedly connected to a lifting device (5) on its side. The lifting device (5) includes a guide plate (51). A sprocket (52) is rotatably connected to the top side and the front side of the guide plate (51). A chain (53) is meshed with the outer side of the sprocket (52). A sliding block (54) is slidably connected to the inner side of the guide plate (51). A return spring (55) is fixedly connected to the side of the sliding block (54). An extension plate (57) is fixedly connected to the bottom side of the guide plate (51). An inner extension plate (58) is slidably connected to the inner side of the extension plate (57). A fixed lifting ring (56) is fixedly connected to the side of the chain (53).

4. The service vehicle of claim 3, wherein: The guide plate (51) has a sliding groove in the middle of its inner side, and the sliding groove is slidably connected to the sliding block (54). The other end of the reset spring (55) is fixedly connected to the guide plate (51). The bottom side of the inner extension plate (58) is also rotatably connected to a sprocket (52). The bottom end of the inner extension plate (58) extends downwards with a short rod. A handle is connected to the axis of the sprocket (52) at the top of the guide plate (51).

5. A maintenance vehicle for convenient power system maintenance according to claim 4, characterized in that: The maintenance platform (3) is provided with an extension device (510) on its side. The extension device (510) includes a protective baffle (511). The front and rear sides of the protective baffle (511) are fixedly connected with extension guardrails (516). The bottom end of the protective baffle (511) is fixedly connected with an extension base plate (512). The side of the extension base plate (512) is slidably provided with a lever (514). The inner side of the extension base plate (512) is provided with a return spring (513). The side of the lever (514) is fixedly connected with a lever (515).

6. A maintenance vehicle for convenient power system maintenance according to claim 5, characterized in that: The extended base plate (512) is slidably connected to the bottom surface of the maintenance platform (3). One end of the extended base plate (512) is a bevel. A spring groove is provided on the side of the extended base plate (512), and a return spring (513) is located inside the spring groove. A spring stop (517) is slidably provided inside the spring groove. The spring stop (517) is fixedly connected to the bottom surface of the maintenance platform (3). The actuating linkage (515) is L-shaped. The top of the actuating linkage (515) is fixedly connected to the sliding block (54). The actuating linkage (515) is located inside the inner wall and bottom surface of the maintenance platform (3).

7. A maintenance vehicle for convenient power system maintenance according to claim 6, characterized in that: The maintenance frame (1) is provided with a stabilizing device (8) on its inner side. The stabilizing device (8) includes a swing shaft (81). A lower pressure plate (83) is provided at the middle position of the maintenance frame (1). A lower swing plate (82) is fixedly connected to the surface of the lower pressure plate (83).

8. A maintenance vehicle for convenient power system maintenance according to claim 7, characterized in that: The bottom end of the lower pressure plate (83) is fixedly connected to a lower pressure rod (84), the bottom side of the lower pressure rod (84) is slidably connected to a stabilizing support plate (85), and the top surface of the right end of the lower pressure plate (83) is fixedly connected to a spring spring (86).

9. A maintenance vehicle for convenient power system maintenance according to claim 8, characterized in that: The swing shaft (81) is fixedly connected to the bottom hinge shaft of the linkage arm (6). The swing shaft (81) is arc-shaped on the side opposite to the ground. The stabilizing support plate (85) is slidably connected to the maintenance frame (1).

10. A maintenance vehicle for convenient power system maintenance according to claim 9, characterized in that: The inner side of the maintenance frame (1) is provided with an inner groove plate, the top of the elastic spring (86) is fixedly connected to the inner groove plate of the maintenance frame (1), and the lower swing plate (82) is located directly below the bottom pivot of the linkage arm (6).

Images