Electrical equipment maintenance lifting platform

By designing an electrical equipment maintenance lifting platform, and utilizing the coaxial cooperation between the support unit and the lifting platform, as well as the ring drive structure, the problem of insufficient lifting height in the existing technology has been solved, achieving the effect of flexible lifting and safe high-altitude operation.

CN119059470BActive Publication Date: 2025-11-11HUANENG (FUJIAN ZHANG ZHOU) ENERGY CO LTD
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Patent Information

Application Number
CN202411003428.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-25
Publication Date
2025-11-11
Estimated Expiration
2044-07-25

AI Technical Summary

Technical Problem

The installation and maintenance of existing power equipment requires a lot of physical labor, and the existing equipment has a low and fixed lifting height, which cannot meet the needs of different heights.

Method used

An electrical equipment maintenance lifting platform is designed, including a support unit and a lifting platform. The fixed part of the support unit is coaxially engaged with the lifting part, and the lifting ring and the placement platform are slidably engaged to achieve ring-driven lifting. Combined with elastic elements and meshing structures, the lifting platform can be flexibly lifted and lowered.

Benefits of technology

The lifting height of the platform has been increased, improving the safety of working at height, reducing the space required for storage, and simplifying the operation process for working at height.

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Abstract

This invention relates to the field of power grid maintenance technology and discloses an electrical equipment maintenance lifting platform, including an independent support unit and a lifting platform. The support unit includes a fixed part and a lifting part, with the fixed part and the lifting part coaxially engaged. The lifting platform includes a placement platform and a lifting ring, with the placement platform and the lifting ring slidably engaged. Both the placement platform and the lifting ring are coaxially engaged with the fixed part. The beneficial effects of this invention are: the lifting height of the platform is increased by connecting the support components at a high position, providing a platform for further high-altitude operations; at the same time, the ring-driven lifting method avoids uneven force distribution in various parts, improving the safety of high-altitude operations; and during normal placement, the space occupied by the lifting part retracting into the fixed part is reduced, facilitating subsequent retrieval.
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Description

Technical Field

[0001] This invention relates to the field of power grid maintenance technology, and in particular to an electrical equipment maintenance lifting platform. Background Technology

[0002] The urban power system plays a vital role in urban development. It provides the electricity needed for urban growth and is a fundamental infrastructure. In the development of urban power systems, it is crucial to emphasize overall planning and continuously update and improve the urban power grid. To ensure the effective operation of power equipment, regular maintenance and new equipment installation are necessary. When new power equipment needs to be installed at heights, workers erect scaffolding and use climbing tools to move the equipment to the top for installation and maintenance. However, during installation and maintenance, workers must carry heavy tool bags and lift the bulky equipment to the top of the scaffolding. Therefore, current methods of power equipment installation and maintenance are physically demanding and time-consuming. Thus, a maintenance lifting platform is needed to meet the varying height requirements during power system maintenance. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above and / or existing power grid maintenance, the present invention is proposed.

[0005] Therefore, the present invention aims to solve the problem that the limit height of existing devices is not high and the height is always fixed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an electrical equipment maintenance lifting platform, comprising: a support unit, the support unit including a fixed part and a lifting part, the fixed part and the lifting part being coaxially engaged; and a lifting platform, the lifting platform including a placement platform and a lifting ring, the placement platform and the lifting ring being slidably engaged, both the placement platform and the lifting ring being coaxially engaged with the fixed part.

[0007] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the fixing part includes a fixing ring, a locking step and a lifting groove. The fixing ring is disposed at the bottom of the fixing part, the locking step is disposed on the upper inner side of the fixing part, the lifting groove is symmetrically disposed on both sides of the fixing part, and the lifting groove is arranged in an array of lifting teeth inside the lifting groove.

[0008] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the lifting part includes an arc-shaped surface, a horizontal plate surface, a movable part, a movable cavity, and an inner arc cavity. The arc-shaped surface is disposed on the side of the horizontal plate surface, and the horizontal plate surface is symmetrically disposed on both sides of the arc-shaped surface. The movable cavity is disposed on the side of the horizontal plate surface, and the inner arc cavity is disposed inside the lifting part.

[0009] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the arc-shaped surface includes two lifting teeth and locking feet. The two lifting teeth are arrayed on the side of the arc-shaped surface, and the locking feet are symmetrically arranged on both sides of the bottom of the two lifting teeth. The horizontal plate surface includes sliding teeth, and the sliding teeth are arranged on the edge of the horizontal plate surface away from the arc-shaped surface.

[0010] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the movable part includes a transition tooth, a lever, an elastic element and a hinge hole. The transition tooth is disposed at one end of the movable part, the hinge hole is disposed at the other end of the movable part, the lever is disposed in the middle of the movable part, and the elastic element is disposed on the upper side of the movable part.

[0011] In a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the elastic element includes a main component and an auxiliary component. The inner arc cavity includes a mating rod, which is disposed on the upper and lower sides of the inner arc cavity. The mating rod includes a hinge joint, which is symmetrically disposed on both sides of the mating rod. The main component is elastically mated with the mating rod on the lower side of the inner arc cavity, and the auxiliary component is elastically mated with the mating rod on the upper side of the inner arc cavity. The main component and the auxiliary component apply an outward squeezing force to the mating rod.

[0012] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the platform includes a power component, a support component, a fitting part, and a meshing part. The power component is disposed on the side of the platform, the support component is disposed around the platform, the fitting part is disposed at intervals from the support component, and the meshing part is symmetrically disposed on both sides of the platform.

[0013] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the supporting component includes a lifting wheel and a limiting ring. The lifting wheel is disposed between two limiting rings, and the limiting rings are symmetrically arranged with respect to the lifting wheel. The lifting wheel includes a limiting ring and an arc-shaped toothed groove. The limiting ring and the limiting ring are slidably engaged, and the arc-shaped toothed groove is disposed inside the lifting wheel.

[0014] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the fitting part includes a fitting groove, the fitting groove is disposed in the middle of the fitting part, the fitting groove includes a raised slider, the raised slider is disposed in the middle of the fitting groove, and the meshing part includes a meshing shaft, the meshing shaft includes meshing teeth disposed in the middle.

[0015] As a preferred embodiment of the electrical equipment maintenance lifting platform of the present invention, the lifting ring includes a rotating column, rotating teeth and a locking cavity. The rotating column array is disposed on the top of the lifting ring, the rotating teeth are disposed on the side of the lifting ring, and the locking cavity is disposed on the lower part of the lifting ring. The locking cavity includes a circular slot, which is disposed on the inner side of the lifting ring.

[0016] The beneficial effects of this invention are as follows: by connecting the support components at a high position, the lifting height of the lifting platform is increased, providing a platform for further high-altitude operations. At the same time, the ring-driven lifting method avoids uneven force distribution in various parts, improving the safety of high-altitude operations. When normally placed, the retraction of the lifting part into the fixed part reduces the space occupied for storage, making it convenient for subsequent retrieval. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a diagram showing the state of the electrical equipment maintenance lifting platform when it is not raised.

[0019] Figure 2 This is a diagram showing the state of the electrical equipment maintenance lifting platform when it is raised.

[0020] Figure 3 This is a structural diagram of section A of the electrical equipment maintenance lifting platform.

[0021] Figure 4 This is a structural diagram of section B of the electrical equipment maintenance lifting platform.

[0022] Figure 5 This diagram shows the changes in the lifting mechanism during the raising of the electrical equipment maintenance lifting platform.

[0023] Figure 6 This is a structural diagram of the lifting section before the electrical equipment maintenance lifting platform is raised.

[0024] Figure 7 This is a sectional view of the lifting section of the electrical equipment maintenance lifting platform after it has been raised.

[0025] Figure 8 This is a schematic diagram of an electrical equipment maintenance lifting platform.

[0026] Figure 9 An exploded view of an electrical equipment maintenance lifting platform.

[0027] Figure 10 This is a structural diagram of section C of the electrical equipment maintenance lifting platform.

[0028] Figure 11 This is a cross-sectional view of the lifting ring structure of an electrical equipment maintenance lifting platform. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1

[0033] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides an electrical equipment maintenance lifting platform, including a support unit 100 and a lifting platform 200. The support unit 100 includes a fixing part 101 and a lifting part 102, and the fixing part 101 and the lifting part 102 are coaxially engaged. The lifting platform 200 includes a placement platform 201 and a lifting ring 202, and the placement platform 201 and the lifting ring 202 are slidably engaged. Both the placement platform 201 and the lifting ring 202 are coaxially engaged with the fixing part 101.

[0034] Specifically, the support unit 100 provides support and lifting space for the lifting platform 200. The fixing part 101 is fixed to the ground or maintenance vehicle to provide support for the entire device. The lifting part 102 cooperates with the fixing part 101. When maintenance is required at a higher position, the lifting part 102 supports the lifting platform 200, allowing the placement platform 201 to reach a higher position for easy maintenance. The lifting ring 202 transmits rotational torque to the entire lifting platform 200, enabling the lifting platform 200 to rise smoothly. The placement platform 201 slowly climbs by receiving torque transmitted from the lifting ring 202.

[0035] Example 2

[0036] Reference Figures 1 to 8This is the second embodiment of the present invention, which differs from the first embodiment in that it provides an electrical equipment maintenance lifting platform including: a fixing part 101 including a fixing ring 101a, a locking step 101b and a lifting groove 101c, the fixing ring 101a being disposed at the bottom of the fixing part 101, the locking step 101b being disposed on the upper inner side of the fixing part 101, the lifting groove 101c being symmetrically disposed on both sides of the fixing part 101, and the lifting groove 101c having an array of lifting teeth 101c-1 inside.

[0037] Preferably, the lifting part 102 includes an arc-shaped surface 102a, a horizontal plate surface 102b, a movable part 102c, a movable cavity 102d, and an inner arc cavity 102e. The arc-shaped surface 102a is disposed on the side of the horizontal plate surface 102b, and the horizontal plate surface 102b is symmetrically disposed on both sides of the arc-shaped surface 102a. The movable cavity 102d is disposed on the side of the horizontal plate surface 102b, and the inner arc cavity 102e is disposed inside the lifting part 102.

[0038] Preferably, the arc-shaped surface 102a includes lifting teeth 102a-1 and engaging feet 102a-2. The lifting teeth 102a-1 are arranged in an array on the side of the arc-shaped surface 102a, and the engaging feet 102a-2 are symmetrically arranged on both sides of the bottom of the lifting teeth 102a-1. The horizontal plate surface 102b includes sliding teeth 102b-1, which are arranged on the edge of the horizontal plate surface 102b away from the arc-shaped surface 102a.

[0039] Furthermore, the movable part 102c includes a transition tooth 102c-1, a lever 102c-2, an elastic element 102c-3, and a hinge hole 102c-4. The transition tooth 102c-1 is disposed at one end of the movable part 102c, the hinge hole 102c-4 is disposed at the other end of the movable part 102c, the lever 102c-2 is disposed in the middle of the movable part 102c, and the elastic element 102c-3 is disposed on the upper side of the movable part 102c.

[0040] Furthermore, the elastic element 102c-3 includes a main element 102c-31 and an auxiliary element 102c-32. The inner arc cavity 102e includes a mating rod 102e-1, which is disposed on the upper and lower sides of the inner arc cavity 102e. The mating rod 102e-1 includes a hinge joint 102e-11, which is symmetrically disposed on both sides of the mating rod 102e-1. The main element 102c-31 is elastically engaged with the mating rod 102e-1 on the lower side of the inner arc cavity 102e, and the auxiliary element 102c-32 is elastically engaged with the mating rod 102e-1 on the upper side of the inner arc cavity 102e. The main element 102c-31 and the auxiliary element 102c-32 apply an outward squeezing force to the mating rod 102e-1.

[0041] Specifically, the fixing ring 101a is used for fixed support, and the engaging step 101b is located on the upper inner side of the fixing part 101 for engaging and positioning with the engaging foot 102a-2 of the lifting part 102. When the lifting part 102 rises to the top of the fixing part 101, the lifting part 102 is opened by the elastic element 102c-3, so that the lifting part 102 and the fixing part 101 are engaged. The lifting grooves 101c are symmetrically arranged on both sides of the fixing part 101, and there is a lifting tooth 101c-1 inside. The lifting tooth 101c-1 meshes with the lifting gear of the lifting platform 200, so that the lifting platform 200 can climb upward. The arc surface 102a and the two horizontal plate surfaces 102 b is fixed. The horizontal panel 102b and the arc surface 102a form an inner arc cavity 102e with an internal U-shape. The inner arc cavity 102e has a mating rod 102e-1 on the upper and lower sides. The lifting part 102 is formed by the connection of two U-shaped structures. The inner arc cavities 102e on both sides are connected to the elastic element 102c-3 through the mating rod 102e-1. When the locking foot 102a-2 at the bottom of the lifting part 102 engages with the locking step 101b at the top of the fixing ring 101a, the elastic element 102c-3 separates the two parts of the lifting part 102. Therefore, a gap is formed in the middle of the sliding tooth 102b-1 located on the side of the lifting part 102.

[0042] Example 3

[0043] Reference Figures 1 to 11 This is the third embodiment of the present invention. Unlike the previous two embodiments, this embodiment provides an electrical equipment maintenance lifting platform including a placement platform 201, comprising a power component 201a, a support component 201b, a fitting part 201c, and a meshing part 201d. The power component 201a is disposed on the side of the placement platform 201, the support component 201b is disposed around the placement platform 201, the fitting part 201c is disposed at intervals from the support component 201b, and the meshing part 201d is symmetrically disposed on both sides of the placement platform 201.

[0044] Furthermore, the support member 201b includes a lifting wheel 201b-1 and a limiting ring 201b-2. The lifting wheel 201b-1 is disposed between the two limiting rings 201b-2. The limiting rings 201b-2 are symmetrically arranged with respect to the lifting wheel 201b-1. The lifting wheel 201b-1 includes a limiting ring 201b-11 and an arc-shaped toothed groove 201b-12. The limiting ring 201b-2 is slidably engaged with the limiting ring 201b-11, and the arc-shaped toothed groove 201b-12 is disposed inside the lifting wheel 201b-1.

[0045] Preferably, the mating portion 201c includes a mating groove 201c-1, which is disposed in the middle of the mating portion 201c. The mating groove 201c-1 includes a protruding slider 201c-11, which is disposed in the middle of the mating groove 201c-1. The meshing portion 201d includes a meshing shaft 201d-1, which includes a meshing tooth 201d-11 disposed in the middle of the shaft.

[0046] Preferably, the lifting ring 202 includes a rotating column 202a, a rotating tooth 202b, and a locking cavity 202c. The rotating column 202a is arranged in an array on the top of the lifting ring 202, the rotating tooth 202b is arranged on the side of the lifting ring 202, and the locking cavity 202c is arranged on the lower part of the lifting ring 202. The locking cavity 202c includes a circular slot 202c-1, which is arranged on the inner side of the lifting ring 202.

[0047] Specifically, the power component 201a meshes with the rotating teeth 202b on the side of the lifting ring 202, giving the lifting ring 202b the power to rotate. The support component 201b provides support and limits for the lifting wheel 201b-1. The limiting ring 201b-2 slides and engages with the limiting rings 201b-11 on both sides of the lifting wheel 201b-1. The center of the fitting part 201c is a concave fitting groove 201c-1. The protruding slider 201c-11 inside the fitting groove 201c-1 slides and engages with the engaging cavity 202c at the bottom of the lifting ring 202. The circular groove 202c-1 fits perfectly with the protruding slider 201c-11. Therefore, the placement platform 201 and the lifting ring 202 are tightly joined together.

[0048] Combining the previous two embodiments, when the lifting part 102 is initially positioned inside the fixed part 101, the lifting wheel 201b-1 meshes with the lifting gear 101c-1 on the outside of the fixed part 101. The power component 201 drives the lifting ring 202 to rotate. The rotating column 202a on the upper part of the lifting ring 202 slides into the arc-shaped tooth groove 201b-12 inside the lifting wheel 201b-1. The arc-shaped tooth groove 201b-12 and the rotating column 202a form an effect similar to a worm gear structure. Therefore, the lifting wheel 201b-1 rotates slowly. Through meshing with the lifting gear 101c-1, the lifting wheel 201b-1 causes the entire lifting platform 200 to climb upwards. During the climbing process, the lifting wheel 201b-1 also meshes with the meshing gear 201d-11 on the meshing shaft 201d-1. Therefore, the meshing gear 201d-11... The rotation direction of the lifting wheel 201b-1 is opposite to that of the lifting part 102. Since the lifting part 102 is initially located inside the fixed part 101, its structure is completely fitted at this time. Therefore, the sliding tooth 102b-1 meshes with the meshing tooth 201d-11. Under the push of the meshing tooth 201d-11, the lifting part 102 slowly extends upward. When the lifting part 102 rises to the top of the fixed part 101, due to the increased upper space, the two sides of the lifting part 102 are opened by the elastic element 102c-3, allowing the lifting part 102 to be joined with the fixed part 101. The lever 102c-2 contacts the bottom of the placement platform 201 during the first stage of the ascent, and the lever 102c-2 also provides a lifting effect on the placement platform 201. When a gap forms between the two sides of the lifting part 102, the lifting part 102... Figure 5 It can be seen that this gap satisfies the disengagement of the meshing teeth 201d-11. Simultaneously, due to the rebound of the main component 102c-31 of the elastic element 102c-3, the lever 102c-2 rises. At the same time, the transition teeth 102c-1 rotate to the lower sides of the lifting section 102, providing a transitional connection for the continued movement of the lifting wheel 201b-1. At this time, the disengagement of the meshing teeth 201d-11 and the sliding teeth 102b-1 does not generate a force opposite to the lifting action, causing the lifting platform 200 to continue rising. When the lifting platform 200 completes its task and is about to descend, as it passes the junction of the fixed part 101 and the lifting part 102, it contacts the lever 102c-2 to move downward. The downward pressure of the lever causes the transition tooth 102c-1 to retract and compress the elastic element 102c-3, allowing the lifting part 102 to continue to complete the splicing and fitting. This causes the meshing tooth 201d-11 to re-mesh the sliding tooth 102b-1, and at this time, the side lifting wheel 201b-1 re-meshes with the lifting tooth 101c-1 of the fixed part 101, completing the descent operation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An electrical equipment maintenance lifting platform, characterized in that: include, A support unit (100) includes a fixing part (101) and a lifting part (102), wherein the fixing part (101) and the lifting part (102) are coaxially coupled; and, A lifting platform (200) includes a placement platform (201) and a lifting ring (202). The placement platform (201) and the lifting ring (202) are slidably engaged. Both the placement platform (201) and the lifting ring (202) are coaxially engaged with the fixed part (101). The fixing part (101) includes a fixing ring (101a), an engaging step (101b), and a lifting groove (101c). The fixing ring (101a) is located at the bottom of the fixing part (101), the engaging step (101b) is located on the upper inner side of the fixing part (101), and the lifting groove (101c) is symmetrically arranged on both sides of the fixing part (101). Lifting teeth (101c-1) are arranged in an array inside the lifting groove (101c). The lifting part (102) includes an arc-shaped surface (102a), a horizontal plate surface (102b), a movable part (102c), a movable cavity (102d), and an inner arc-shaped cavity (102e). The arc-shaped surface (102a) is located on the side of the horizontal plate surface (102b), and the horizontal plate surface (102b) is symmetrically arranged on both sides of the arc-shaped surface (102a). The movable cavity (102d) is located on the side of the horizontal plate surface (102b), and the inner arc-shaped cavity (102e) is located inside the lifting part (102). The arc-shaped surface (102a) includes two lifting teeth (102a-1) and two engaging feet (102a-2). The two lifting teeth (102a-1) are arranged in an array on the side of the arc-shaped surface (102a), and the engaging feet (102a-2) are symmetrically arranged on both sides of the bottom of the two lifting teeth (102a-1). The horizontal plate surface (102b) includes a sliding tooth (102b-1), which is located on the edge of the horizontal plate surface (102b) away from the arc-shaped surface (102a). The movable part (102c) includes a transition tooth (102c-1), a lever (102c-2), an elastic element (102c-3), and a hinge hole (102c-4). The transition tooth (102c-1) is located at one end of the movable part (102c), the hinge hole (102c-4) is located at the other end of the movable part (102c), the lever (102c-2) is located in the middle of the movable part (102c), and the elastic element (102c-3) is located on the upper side of the movable part (102c). The elastic element (102c-3) includes a main component (102c-31) and an auxiliary component (102c-32). The inner arc cavity (102e) includes a mating rod (102e-1), which is disposed on the upper and lower sides of the inner arc cavity (102e). The mating rod (102e-1) includes a hinge joint (102e-11), which is symmetrically disposed on the mating rod. On both sides of the connecting rod (102e-1), the main component (102c-31) is elastically engaged with the mating rod (102e-1) on the lower side of the inner arc cavity (102e), and the auxiliary component (102c-32) is elastically engaged with the mating rod (102e-1) on the upper side of the inner arc cavity (102e). The main component (102c-31) and the auxiliary component (102c-32) exert an outward squeezing force on the mating rod (102e-1).

2. The electrical equipment maintenance lifting platform as described in claim 1, characterized in that: The placement platform (201) includes a power component (201a), a support component (201b), a fitting part (201c), and a meshing part (201d). The power component (201a) is disposed on the side of the placement platform (201), the support component (201b) is disposed around the placement platform (201), the fitting part (201c) is disposed at intervals from the support component (201b), and the meshing part (201d) is symmetrically disposed on both sides of the placement platform (201).

3. The electrical equipment maintenance lifting platform as described in claim 2, characterized in that: The support member (201b) includes a lifting wheel (201b-1) and a limiting ring (201b-2). The lifting wheel (201b-1) is disposed between the two limiting rings (201b-2). The limiting rings (201b-2) are symmetrically arranged with respect to the lifting wheel (201b-1). The lifting wheel (201b-1) includes a limiting ring (201b-11) and an arc-shaped toothed groove (201b-12). The limiting ring (201b-2) is slidably engaged with the limiting ring (201b-11). The arc-shaped toothed groove (201b-12) is disposed inside the lifting wheel (201b-1).

4. The electrical equipment maintenance lifting platform as described in claim 3, characterized in that: The fitting part (201c) includes a fitting groove (201c-1), which is disposed in the middle of the fitting part (201c). The fitting groove (201c-1) includes a protruding slider (201c-11), which is disposed in the middle of the fitting groove (201c-1). The meshing part (201d) includes a meshing shaft (201d-1), which includes meshing teeth (201d-11) disposed in the middle of the shaft.

5. The electrical equipment maintenance lifting platform as described in claim 2 or 3, characterized in that: The lifting ring (202) includes a rotating column (202a), rotating teeth (202b), and a locking cavity (202c). The rotating column (202a) array is arranged on the top of the lifting ring (202), the rotating teeth (202b) are arranged on the side of the lifting ring (202), and the locking cavity (202c) is arranged on the lower part of the lifting ring (202). The locking cavity (202c) includes a circular slot (202c-1), which is arranged on the inner side of the lifting ring (202).

Citation Information

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