A lifting work platform device for power distribution network

Abstract

The application discloses a lifting operation platform device for power distribution network, and aims to provide a lifting operation platform device for power distribution network which can not only adapt to the operation requirements of ring network cabinets at different height positions and has good universality, but also can lock the lifting platform of the lifting operation platform device for power distribution network during the operation of workers by using the lifting operation platform device for power distribution network, so as to improve the operation safety performance. The lifting operation platform device for power distribution network comprises a chassis, a lifting platform located above the chassis, a lifting actuating mechanism, and a floating pedal. The chassis is provided with a vertical sliding hole. The lifting platform comprises a vertical guide column matched with the vertical sliding hole. The lifting actuating mechanism drives the lifting platform to move up and down. The floating pedal is supported above the lifting platform by a spring and can move up and down. The floating pedal is linked with the lifting platform. When the floating pedal moves downwards and is supported on the lifting platform, the lifting platform is limited in up and down movement. When the floating pedal moves upwards to a position, the lifting platform is no longer limited in up and down movement.

Description

Technical Field

[0001] This invention relates to the field of power distribution network operation devices, and more specifically to a lifting operation platform device for power distribution networks. Background Technology

[0002] With the development of urbanization in recent years, overhead power lines in suburban areas, towns, and clusters have been gradually replaced by ring main units (units). Since these units are installed along roads, it's difficult to extend the construction platform to meet municipal and highway requirements. For ring main units installed at higher locations, there's no suitable working surface, making it inconvenient for workers to operate. Currently, workers typically use ladders or scaffolding to work on ring main units at higher locations. Using ladders is not only unsafe, but also requires frequent repositioning, hindering work. Using scaffolding is safer, but its height is fixed, while ring main units vary in height depending on installation needs, making it difficult to adapt to the operational requirements of ring main units at different heights, resulting in poor versatility.

[0003] Furthermore, in order to solve the problem of fixed height and poor versatility of scaffolding, some workers use lifting work platforms that can be raised and lowered to adapt to the operation needs of ring main units at different heights. However, the problem is that when workers are working on the lifting work platform, there is a possibility that the work platform may be accidentally raised or lowered, causing workers to collide with the ring main unit, resulting in personal injury, or even touching live parts, creating safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a lifting platform device for power distribution networks, which can not only adapt to the operation requirements of ring main units at different heights and has good versatility, but also lock the lifting platform of the power distribution network lifting platform device during the operation of the workers, so as to improve the operation safety performance.

[0005] The technical solution of this invention is: A lifting platform device for power distribution networks includes: The base frame has vertical sliding holes. The lifting platform located above the base frame includes vertical guide columns that mate with vertical sliding holes; The lifting actuator drives the lifting platform to move up and down. The floating pedal is supported above the lifting platform by springs and can move up and down; The floating pedal works in conjunction with the lifting platform. When the floating pedal moves downward and supports itself on the lifting platform, the vertical movement of the lifting platform is restricted. When the floating pedal moves upward and is in position, the vertical movement of the lifting platform is unrestricted.

[0006] The specific use of a power distribution network lifting platform device according to this solution is as follows. The lifting platform device for power distribution networks is supported on the ground by a base frame; Next, based on the actual installation height of the ring main unit, the working height of the lifting platform is adjusted through the lifting actuator to adapt to the operating requirements of the ring main unit at different heights. Next, the worker steps onto the floating platform. Once on the platform, the worker's weight overcomes the spring force, causing the platform to move downwards and support the lifting platform. At this point, the lifting platform's vertical movement is restricted, effectively locking it in place. This ensures that the lifting platform is not controlled to move up or down during the worker's operation using the power distribution network lifting platform device, thus improving operational safety. This effectively solves the problem of workers colliding with the ring main unit, causing personal injury, or even touching live parts, creating safety hazards when the lifting platform is controlled to move up or down.

[0007] Preferably, a linkage locking mechanism is also included, which comprises: An abutting slider that mates with the inner wall of the vertical sliding hole is slidably positioned at the bottom of the vertical guide post; A linkage rod is mounted on the floating pedal and engages with the resisting slider. When the floating pedal moves downwards and rests on the lifting platform, the linkage pushes the abutting slider, causing it to press against the inner wall of the vertical sliding hole. When the floating pedal moves upwards to its designated position, the linkage pushes the abutting slider, causing it to separate from the inner wall of the vertical sliding hole. Therefore, when the floating pedal is not under load (no operator is standing on it), it moves upwards under the force of the spring, at which point the abutting slider separates from the inner wall of the vertical sliding hole, thus unrestricting the vertical movement of the lifting platform. This allows the lifting mechanism to adjust the working height of the lifting platform to accommodate the operational needs of the ring main unit at different heights. When a worker stands on the floating platform, their own weight overcomes the spring force, causing the floating platform to move downwards and support the lifting platform. At this time, the linkage rod pushes the abutment slider, causing the abutment slider to press against the inner wall of the vertical sliding hole, thereby restricting the vertical movement of the lifting platform and locking it. This ensures that the lifting platform is not controlled to move up or down during the operation of the power distribution network lifting platform device, improving the safety performance of the operation and preventing the platform from being controlled to move up or down during the operation, which could lead to collisions between the worker and the ring main unit, causing personal injury, or even contact with live parts, creating safety hazards.

[0008] Preferably, the vertical guide post is a hollow structure, with its inner hole forming a sliding hole for the linkage rod, into which the linkage rod is inserted. This effectively improves the structural compactness and protects the linkage rod structure.

[0009] Preferably, one end of the contact slider is provided with an elastic block that engages with the inner wall of the vertical sliding hole. In this way, the contact slider engages with the inner wall of the vertical sliding hole through the elastic block. This increases the friction between the contact slider and the inner wall of the vertical sliding hole, ensuring the locking effect of the lifting platform. Furthermore, the elastic deformation of the elastic block can compensate for structural errors, ensuring that when a worker stands on the floating platform, the floating platform can move downwards and be supported on the lifting platform, thus improving the stability of the floating platform.

[0010] Preferably, the sliding block is provided with an inclined groove, and the linkage rod is provided with a push rod that pushes the sliding block. The push rod extends into the inclined groove and is close to or located at the lower end of the linkage rod.

[0011] Preferably, the lifting platform is provided with a vertical guide hole, and the floating platform is provided with a vertical guide rod that mates with the vertical guide hole. A guide rod stop is provided at the lower end of the vertical guide rod, located below the vertical guide hole. In this way, on the one hand, the cooperation between the vertical guide rod and the vertical guide hole allows the floating platform to rise and fall smoothly; on the other hand, when the floating platform is not under load (no worker is standing on it), the floating platform will move upwards under the force of the spring until the guide rod stop abuts against the lower end of the vertical guide hole. At this point, the floating platform has moved upwards into position under the force of the spring.

[0012] Preferably, the base frame is equipped with support legs, which are vertically distributed and hollow in structure, with their inner holes forming the aforementioned vertical sliding holes. In this way, the base frame can be supported by the support legs, and the inner holes of the support legs form the aforementioned vertical sliding holes for guiding the vertical guide posts, resulting in a compact structure.

[0013] Preferably, the bottom end of the support leg is provided with an adjusting bolt for supporting the base frame, and the adjusting bolt is threadedly connected to the support leg. In this way, the gap between each support leg and the ground can be eliminated by fine-tuning the adjusting bolt, so as to ensure that the base frame is stably supported on the ground.

[0014] Preferably, the vertical guide column is equipped with a guide column limit block to limit the lifting stroke of the lifting platform.

[0015] Preferably, the lifting actuator is a screw jack. This allows for smooth and efficient lifting of the platform.

[0016] The beneficial effects of this invention are: it can not only adapt to the operation requirements of ring main units at different heights and has good versatility; but also, during the operation of the power distribution network lifting platform device, the lifting platform of the power distribution network lifting platform device can be locked to improve the operation safety performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a power distribution network lifting platform device when the floating pedal moves upward into position.

[0018] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a schematic diagram of the structure of a power distribution network lifting platform device when the floating pedal moves downward and is supported on the lifting platform.

[0020] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle.

[0021] In the picture: Base frame 1, support legs 1.1, vertical sliding hole 1.2, adjusting bolt 1.3, vertical limiting groove 1.4; Lifting platform 2, vertical guide column 2.1, linkage rod sliding hole 2.2, guide column limit block 2.3; Lifting actuator 3, screw jack 3.1; Floating pedal 4, support block 4.1; Spring 5; Linkage locking mechanism 6, contact slider 6.0, linkage rod 6.1, inclined groove 6.2, push rod 6.3, radial sliding hole 6.4, elastic block 6.5; Vertical guide rod 7, guide rod stop 7.1. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Specific Implementation Example 1, such as Figure 1 , Figure 2 As shown, a lifting platform device for power distribution networks includes a base frame 1, a lifting platform 2, a lifting actuator 3, and a floating foot 4. The base frame 1 has vertical sliding holes 1.2. The lifting platform 2 is located above the base frame 1. The lifting platform 2 includes vertical guide columns 2.1 that cooperate with the vertical sliding holes 1.2. The lifting actuator 3 drives the lifting platform 2 to move up and down. The lifting actuator 3 is a cylinder, an electric cylinder, or other lifting actuator 3. In this embodiment, the lifting actuator 3 is a screw jack 3.1. The floating foot 4 is supported above the lifting platform 2 by springs 5 ​​and can move up and down. The floating pedal 4 is linked to the lifting platform 2. For example... Figure 1 , Figure 2 As shown, when the floating pedal 4 moves upward into position, the vertical movement of the lifting platform 2 is no longer restricted. Figure 3 , Figure 4 As shown, when the floating pedal 4 moves downward and is supported on the lifting platform 2, the vertical movement of the lifting platform 2 is restricted.

[0023] The specific use of a power distribution network lifting platform device in this embodiment is as follows. The power distribution network lifting platform device is supported on the ground by the base frame 1; at this time, the floating pedal 4 is not under load (the staff is not standing on the floating pedal 4), and the floating pedal 4 moves upward into place under the action of the spring 5, and the lifting platform 2 is unrestricted in its up and down movement, and the lifting actuator 3 can drive the lifting platform 2 to move up and down.

[0024] Next, based on the actual installation height of the ring main unit, the working height of the lifting platform 2 is adjusted by the lifting actuator 3 to adapt to the working requirements of the ring main unit at different heights.

[0025] Next, the worker climbs onto the floating platform 4. Once the worker is on the floating platform 4, their own weight will overcome the force of the spring 5, causing the floating platform 4 to move downwards and support the lifting platform 2. At this time, the up and down movement of the lifting platform 2 is restricted, thus locking the lifting platform 2. This ensures that the lifting platform 2 is not controlled to move up or down during the worker's operation using the power distribution network lifting platform device, thereby improving the safety performance of the operation. This effectively solves the problem that when the worker is working on the lifting platform 2, the controlled up and down movement of the lifting platform 2 may cause the worker to collide with the ring main unit, resulting in personal injury or even contact with live parts, creating safety hazards.

[0026] In one embodiment of this invention, the lifting actuator 3 is a screw jack 3.1, and there are two screw jacks 3.1, with the screws of the screw jacks vertically distributed. The two screw jacks are arranged side by side on the base frame 1. The two screw jacks are synchronously driven by the same motor.

[0027] In another embodiment of this invention, the lifting actuator 3 is a screw jack 3.1, and there are two screw jacks 3.1, with the screws of the screw jacks vertically distributed. The two screw jacks are arranged side by side on the base frame 1. The two screw jacks are driven by the same handwheel.

[0028] In the third embodiment of this invention, the lifting actuator 3 is a screw jack 3.1, and there is only one screw jack 3.1. The screw of the screw jack is vertically distributed. The screw jack is driven by a motor.

[0029] In the fourth embodiment of this invention, the lifting actuator 3 is a screw jack 3.1, and there is only one screw jack 3.1. The screw of the screw jack is vertically distributed. The screw jack is driven by a handwheel.

[0030] Specific embodiment two, such as Figure 1 , Figure 2 As shown, a lifting platform device for power distribution networks includes a base frame 1, a lifting platform 2, a lifting actuator 3, a floating footplate 4, and a linkage locking mechanism 6. The base frame 1 has a vertical sliding hole 1.2. The lifting platform 2 is located above the base frame 1. The lifting platform 2 includes a vertical guide post 2.1 that mates with the vertical sliding hole 1.2. The vertical guide post 2.1 has a guide post limiting block 2.3 that limits the lifting stroke of the lifting platform 2. The inner wall of the vertical sliding hole 1.2 has a vertical limiting groove 1.4 that mates with the guide post limiting block 2.3. The guide post limiting block 2.3 extends into the vertical limiting groove 1.4 to limit the lifting stroke of the lifting platform 2.

[0031] The floating pedal 4 is supported above the lifting platform 2 by a spring 5 and can move up and down. In this embodiment, the lower surface of the floating pedal 4 is provided with several support blocks 4.1 of equal thickness. When the floating pedal 4 moves down and is supported on the lifting platform 2, the floating pedal 4 is supported on the upper surface of the lifting platform 2 by the support blocks 4.1.

[0032] The lifting actuator 3 drives the lifting platform 2 to move up and down. The lifting actuator 3 is a pneumatic cylinder, an electric cylinder, or other lifting actuator 3. In this embodiment, the lifting actuator 3 is a screw jack 3.1. Specifically, in one implementation of this embodiment, the lifting actuator 3 is a screw jack, and there are two screw jacks with their screws vertically distributed. The two screw jacks are arranged side by side on the base frame 1. The two screw jacks are synchronously driven by the same motor.

[0033] In another embodiment of this invention, the lifting actuator 3 is a screw jack, and there are two screw jacks with their screws vertically distributed. The two screw jacks are arranged side by side on the base frame 1. The two screw jacks are driven by the same handwheel.

[0034] In the third embodiment of this invention, the lifting actuator 3 is a screw jack, and there is only one screw jack. The screw of the screw jack is vertically distributed. The screw jack is driven by a motor.

[0035] In the fourth embodiment of this invention, the lifting actuator 3 is a screw jack, and there is only one screw jack. The screw of the screw jack is vertically distributed. The screw jack is driven by a handwheel.

[0036] The floating pedal 4 is linked to the lifting platform 2. Specifically, the floating pedal 4 and the lifting platform 2 are linked through a linkage locking mechanism 6. The linkage locking mechanism 6 includes a linkage rod 6.1 and an abutting slider 6.0 that engages with the inner wall of the vertical sliding hole 1.2. The abutting slider 6.0 is slidably disposed at the bottom of the vertical guide post 2.1 and slides radially along the vertical sliding hole 1.2. The abutting slider 6.0 is located within the vertical sliding hole 1.2. In this embodiment, during the process of the lifting actuator 3 driving the lifting platform 2 to move up and down, the abutting slider 6.0 always remains within the vertical sliding hole 1.2.

[0037] The linkage rod 6.1 is fixedly mounted on the floating pedal 4 and cooperates with the abutting slider 6.0. Specifically, the abutting slider 6.0 has an inclined groove 6.2. One end of the inclined groove 6.2 is higher than the other end. The linkage rod 6.1 has a push rod 6.3 that pushes the abutting slider 6.0. The push rod 6.3 extends into the inclined groove 6.2. The push rod 6.3 is close to or located at the lower end of the linkage rod 6.1. When the floating pedal 4 moves the linkage rod 6.1 and the push rod 6.3 upward, the push rod 6.3 cooperates with the inclined groove 6.2 to push the abutting slider 6.0, causing the abutting slider 6.0 to separate from the inner wall of the vertical sliding hole 1.2. When the floating pedal 4 moves the linkage rod 6.1 and the push rod 6.3 downward, the push rod 6.3 cooperates with the inclined groove 6.2 to push the abutting slider 6.0 until the abutting slider 6.0 presses against the inner wall of the vertical sliding hole 1.2.

[0038] like Figure 3 , Figure 4 As shown, when the floating pedal 4 moves downward and supports itself on the lifting platform 2, the vertical movement of the lifting platform 2 is restricted. Specifically, when the floating pedal 4 moves downward and supports itself on the lifting platform 2, the linkage rod 6.1 pushes the abutment slider 6.0, causing the abutment slider 6.0 to press against the inner wall of the vertical sliding hole 1.2, thereby restricting the vertical movement of the lifting platform 2. Based on this, when a worker stands on the floating pedal 4, the worker's own weight will overcome the force of the spring 5, causing the floating pedal 4 to move downward and support itself on the lifting platform 2. At this time, the linkage rod 6.1 pushes the abutment slider 6.0, causing the abutment slider 6.0 to press against the inner wall of the vertical sliding hole 1.2, thereby restricting the vertical movement of the lifting platform 2, effectively locking the lifting platform 2. This ensures that the lifting platform 2 is not controlled to move up or down during the operation of the power distribution network lifting platform device, thereby improving the safety performance of the operation and avoiding the problem of the platform being controlled to move up and down during the operation, which could lead to the worker colliding with the ring main unit, causing personal injury, or even touching live parts, creating safety hazards.

[0039] like Figure 1 , Figure 2 As shown, when the floating pedal 4 moves upward into position, the vertical movement of the lifting platform 2 is unrestricted. Specifically, when the floating pedal 4 moves upward into position, the linkage rod 6.1 pushes the abutment slider 6.0, causing the abutment slider 6.0 to separate from the inner wall of the vertical sliding hole 1.2, thereby unrestricting the vertical movement of the lifting platform 2. Based on this, when the floating pedal 4 is not under load (the worker is not standing on the floating pedal 4), the floating pedal 4 moves upward into position under the force of the spring 5. At this time, the abutment slider 6.0 separates from the inner wall of the vertical sliding hole 1.2, thus unrestricting the vertical movement of the lifting platform 2. Therefore, the working height of the lifting platform 2 can be adjusted by the lifting actuator 3 to adapt to the operating needs of the ring main unit at different height positions.

[0040] Furthermore, such as Figure 1 As shown, the base frame 1 is equipped with four support legs 1.1. In this embodiment, the four support legs 1.1 are distributed at the four corners of the base frame 1. The support legs 1.1 are vertically distributed. The support legs 1.1 are hollow structures, and their inner holes form the vertical sliding holes 1.2. Vertical guide posts 2.1 correspond one-to-one with the support legs 1.1. The vertical guide posts 2.1 are slidably disposed in the vertical sliding holes 1.2 on their respective vertical guide posts 2.1. The upper end of the vertical guide post 2.1 is connected to the lifting platform 2. In this way, the base frame 1 can be supported by the support legs 1.1, and the inner holes of the support legs form the vertical sliding holes 1.2 for guiding the vertical guide posts 2.1, resulting in a compact structure.

[0041] Furthermore, such as Figure 1 As shown, each support leg 1.1 has an adjusting bolt 1.3 at its bottom end that supports the base frame 1. The adjusting bolt 1.3 is threadedly connected to the support leg 1.1. The adjusting bolts 1.3 are vertically distributed. In this way, the gap between each support leg 1.1 and the ground can be eliminated by finely adjusting the adjusting bolts 1.3, so as to ensure that the base frame 1 is stably supported on the ground.

[0042] Furthermore, the lifting platform 2 is equipped with a ladder (not shown in the figure), the upper end of which is connected to the edge of the lifting platform 2. The upper end of the ladder is fixed to the edge of the lifting platform 2, or it can be detachably connected to the edge of the lifting platform 2. The height of the ladder is less than the height of the base frame 1. In this way, workers can use the ladder to access the floating platform 4.

[0043] Furthermore, such as Figure 1 , Figure 3 As shown, the lifting platform 2 is provided with a vertical guide hole. The floating platform 4 is provided with a vertical guide rod 7 that cooperates with the vertical guide hole. The lower end of the vertical guide rod is provided with a guide rod stop 7.1. The guide rod stop 7.1 is located below the vertical guide hole. In this way, on the one hand, the floating platform 4 can be raised and lowered smoothly by cooperating with the vertical guide hole through the vertical guide rod; on the other hand, when the floating platform 4 is not under load (the staff is not standing on the floating platform 4), the floating platform 4 will move upward under the force of the spring 5 until the guide rod stop abuts against the lower end of the vertical guide hole. At this time, the floating platform 4 has moved upward into position under the force of the spring 5.

[0044] Furthermore, such as Figure 1 , Figure 2 , Figure 4As shown, the vertical guide post 2.1 is a hollow structure, and its inner hole forms the sliding hole 2.2 for the linkage rod. The sliding holes 2.2 are vertically distributed. The linkage rod 6.1 is inserted into the sliding hole 2.2. The linkage rod 6.1 can slide up and down along the sliding hole 2.2. In this way, the structural compactness can be effectively improved, and the structure of the linkage rod 6.1 can be protected.

[0045] The outer wall of the vertical guide post 2.1 is provided with a radial sliding hole 6.4, which is located near the bottom of the vertical guide post 2.1. The radial sliding hole 6.4 extends radially along the vertical sliding hole 1.2. The abutment slider 6.0 is slidably disposed within the radial sliding hole 6.4, so that the abutment slider 6.0 is slidably disposed at the bottom of the vertical guide post 2.1. The linkage rod sliding hole 2.2 is connected to the radial sliding hole 6.4. The upper end of the inclined groove 6.2 is inclined towards the opening of the radial sliding hole 6.4.

[0046] In one embodiment of this invention, the abutting slider 6.0 is provided with a linkage rod passage extending through the upper and lower end faces of the abutting slider 6.0. The linkage rod passage is elongated, for example, rectangular or oval. The length direction of the linkage rod passage is parallel to the sliding direction of the abutting slider 6.0. The inclined groove 6.2 is connected to the linkage rod passage. The linkage rod 6.1 passes through the linkage rod passage. The push rod 6.3 is located inside the linkage rod passage.

[0047] In another embodiment of this example, the linkage 6.1 is located on the side that abuts the slider 6.0.

[0048] The specific use of a power distribution network lifting platform device in this embodiment is as follows. The power distribution network lifting platform device is supported on the ground by a base frame 1. Specifically, the base frame 1 is supported on the ground by various support legs 1.1, and the gap between each support leg 1.1 and the ground is eliminated by fine-tuning the adjusting bolts 1.3 to ensure that the base frame 1 is stably supported on the ground. At this time, the floating pedal 4 is not under load (the worker is not standing on the floating pedal 4). Under the action of the spring 5, the floating pedal 4 moves upward into position, and the contact slider 6.0 separates from the inner wall of the vertical sliding hole 1.2. The vertical movement of the lifting platform 2 is no longer restricted, and the lifting actuator 3 can drive the lifting platform 2 to move up and down.

[0049] Next, based on the actual installation height of the ring main unit, the working height of the lifting platform 2 is adjusted by the lifting actuator 3 to adapt to the working requirements of the ring main unit at different heights.

[0050] Next, the worker climbs onto the floating platform 4. Once the worker is on the floating platform 4, their own weight will overcome the force of the spring 5, causing the floating platform 4 to move downwards and support the lifting platform 2. At this time, the linkage rod 6.1 pushes the abutting slider 6.0, causing the abutting slider 6.0 to press against the inner wall of the vertical sliding hole 1.2. The up and down movement of the lifting platform 2 is restricted, thus locking the lifting platform 2. This ensures that the lifting platform 2 is not controlled to rise or fall during the worker's operation using the power distribution network lifting platform device, thereby improving the safety performance of the operation. This effectively solves the problem that when the worker is working on the lifting platform 2, the controlled rise and fall of the lifting platform 2 may cause the worker to collide with the ring main unit, resulting in personal injury or even contact with live parts, creating safety hazards.

[0051] In this specific embodiment, the remaining structure is the same as in specific embodiment two, except that... like Figure 2 , Figure 4 As shown, one end of the contact slider 6.0 is provided with an elastic block 6.5 that engages with the inner wall of the vertical sliding hole 1.2. The elastic block 6.5 is fixedly disposed at the end facing the inner wall of the vertical sliding hole 1.2. In this way, the contact slider 6.0 engages with the inner wall of the vertical sliding hole 1.2 through the elastic block 6.5. On the one hand, this can increase the friction between the contact slider 6.0 and the inner wall of the vertical sliding hole 1.2 to ensure the locking effect of the lifting platform 2; on the other hand, the elastic deformation of the elastic block 6.5 can offset structural errors, ensuring that when the worker stands on the floating platform 4, the floating platform 4 can move downward and be supported on the lifting platform 2, thereby improving the stability of the floating platform 4.

[0052] One end of the elastic block 6.5 facing the inner wall of the vertical sliding hole 1.2 has an arc surface, which matches the surface of the inner wall of the vertical sliding hole 1.2. When the elastic block 6.5 presses against the inner wall of the vertical sliding hole 1.2, the elastic block 6.5 will cooperate with the surface of the inner wall of the vertical sliding hole 1.2 through the arc surface, thereby further increasing the friction between the contact slider 6.0 and the inner wall of the vertical sliding hole 1.2, so as to ensure the effect of locking the lifting platform 2.

[0053] In this embodiment, the elastic block 6.5 is a rubber elastic block 6.5.

[0054] In this specific embodiment four, the remaining structure is the same as in specific embodiment two, except that... In this embodiment, the contact slider 6.0 is a one-piece molded structure. The contact slider 6.0 is a plastic or metal block. One end of the contact slider 6.0 facing the inner wall of the vertical sliding hole 1.2 has an arc surface, which matches the surface of the inner wall of the vertical sliding hole 1.2. Thus, when the contact slider 6.0 presses against the inner wall of the vertical sliding hole 1.2, the contact slider 6.0 will engage with the surface of the inner wall of the vertical sliding hole 1.2 through the arc surface, thereby effectively increasing the friction between the contact slider 6.0 and the inner wall of the vertical sliding hole 1.2, ensuring the locking effect of the lifting platform 2.

[0055] In this specific embodiment, the remaining structure is the same as in specific embodiments two, three, or four, except that... In one embodiment of this invention, the lifting platform 2 is surrounded by a fence (not shown in the figure) to protect workers operating on the power distribution network lifting platform device. A floating footboard 4 is located inside the fence. The fence is either fixedly mounted on the lifting platform 2 or detachably mounted on the lifting platform 2. The fence has a worker access point (not shown in the figure) to facilitate worker entry and exit.

[0056] In another embodiment of this invention, the floating platform 4 is surrounded by a fence (not shown in the figure) to protect workers operating on the power distribution network lifting platform device. The fence is fixedly installed on the floating platform 4, or it can be detachably installed on the floating platform 4. The fence has a worker entrance / exit (not shown in the figure) to facilitate worker access.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A lifting work platform device for power distribution networks, characterized in that, include: The base frame has vertical sliding holes. The lifting platform located above the base frame includes vertical guide columns that mate with vertical sliding holes; The lifting actuator drives the lifting platform to move up and down. The floating pedal is supported above the lifting platform by springs and can move up and down; The floating pedal works in conjunction with the lifting platform. When the floating pedal moves downward and is supported on the lifting platform, the vertical movement of the lifting platform is restricted. When the floating pedal moves upward into position, the vertical movement of the lifting platform is no longer restricted. The linkage locking mechanism includes: The sliding block that engages with the inner wall of the vertical sliding hole is located at the bottom of the vertical guide post. The linkage rod is located on the floating pedal and cooperates with the abutting slider; When the floating pedal moves downward and is supported on the lifting platform, the linkage pushes the abutting slider so that the abutting slider presses against the inner wall of the vertical sliding hole; when the floating pedal moves upward into position, the linkage pushes the abutting slider so that the abutting slider separates from the inner wall of the vertical sliding hole.

2. The lifting platform device for power distribution networks according to claim 1, characterized in that, The vertical guide post is a hollow structure, and its inner hole forms a sliding hole for the linkage rod, in which the linkage rod is inserted.

3. A lifting platform device for power distribution networks according to claim 1 or 2, characterized in that, One end of the abutment slider is provided with an elastic block that cooperates with the inner wall of the vertical sliding hole.

4. A lifting platform device for power distribution networks according to claim 1 or 2, characterized in that, The sliding block is provided with an inclined groove, and the linkage rod is provided with a push rod that pushes the sliding block. The push rod extends into the inclined groove and is close to or located at the lower end of the linkage rod.

5. A lifting platform device for power distribution networks according to claim 1 or 2, characterized in that, The lifting platform is provided with a vertical guide hole, and the floating pedal is provided with a vertical guide rod that cooperates with the vertical guide hole.

6. The lifting platform device for power distribution networks according to claim 5, characterized in that, The lower end of the vertical guide rod is provided with a guide rod stop block, which is located below the vertical guide hole.

7. A lifting platform device for power distribution networks according to claim 1 or 2, characterized in that, The base frame is equipped with support legs, which are vertically distributed and hollow in structure, with their inner holes forming the vertical sliding holes.

8. The lifting platform device for power distribution networks according to claim 7, characterized in that, The bottom end of the support leg is provided with an adjusting bolt for supporting the base frame, and the adjusting bolt is connected to the support leg by a thread.

9. A lifting platform device for power distribution networks according to claim 1 or 2, characterized in that, The vertical guide column is equipped with a guide column limit block to limit the lifting stroke of the lifting platform.

10. A lifting platform device for power distribution networks according to claim 1 or 2, characterized in that, The lifting actuator is a screw jack.

Images