CN118723889A - Lifting type power and electrical equipment maintenance platform - Google Patents

Abstract

The application provides a lifting type electric power and electric equipment maintenance platform, which comprises a lifting platform and a lifting seat, wherein an embedded groove is formed in the lifting platform, an embedded groove is formed in the lifting seat, and the lifting platform further comprises: the reinforcing component is used for supporting and reinforcing four corners in the lifting process of the lifting platform and comprises a plurality of groups of support columns and a linkage mechanism, wherein the upper ends of the plurality of groups of support columns are provided with convex blocks, the upper ends of the convex blocks are provided with annular grooves, the inner ends of the annular grooves are provided with arc blocks, the inner ends of the convex blocks are provided with notches, the inner ends of the notches are provided with connecting shafts, the connecting shafts are connected with one group of support columns at the upper end, the lower ends of the support columns are provided with grooves, the inner ends of the grooves are provided with linkage rings, and linkage springs are arranged between the linkage rings and the arc blocks at the lower ends; the linkage mechanism comprises a linkage shaft positioned in the linkage ring, the outer end of the linkage shaft is provided with a linkage toothed ring, and the outer end of the linkage toothed ring is provided with a linkage tooth slot. The application has the characteristics of stability and reliability, can effectively reduce faults and accidents in the maintenance process, and ensures the safety and stability in the maintenance process of the power system.

Description

Lifting type power and electrical equipment maintenance platform

Technical Field

The invention relates to the technical field of lifting and repairing platforms, and in particular to a lifting and repairing platform for electric power equipment.

Background Art

In the maintenance and inspection of power and electrical equipment, traditional tools such as scaffolding and ladders can no longer meet the needs of efficient and safe work. With the advancement of science and technology and the development of industry, higher requirements are put forward for the stable operation of power systems and the rapid inspection and repair of equipment. Therefore, the development of a new type of lifting and maintenance platform has become an urgent problem to be solved. Traditional inspection and repair methods have many shortcomings, such as low work efficiency and great safety hazards. The construction and disassembly process of scaffolding is cumbersome and requires a lot of time and manpower. At the same time, due to the poor stability of the scaffolding, it is easily affected by external factors such as wind, which threatens the safety of maintenance personnel. In addition, traditional tools are even more difficult to handle inspection and repair work at high altitudes or in special environments.

In the prior art, during the use of the lifting maintenance platform, the four corner supports cannot be adjusted at a higher height, and the supports currently used are all electric structures, which cannot be linked with the lifting platform, which easily causes incomplete synchronization or insufficient support force. Therefore, we have made improvements to this and proposed a lifting type power and electrical equipment maintenance platform.

Summary of the invention

The purpose of the present invention is to address the problem that the current design of a lifting and maintenance platform cannot save energy and synchronously support the lifting and maintenance platform.

In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

A lifting type electric power equipment maintenance platform is provided to improve the above problems.

The specific application is as follows:

The lifting type electric power equipment maintenance platform comprises a lifting platform and a lifting seat, wherein the lifting platform is provided with an embedded groove, the lifting seat is provided with an embedded groove, and further comprises:

A reinforcement component is used for reinforcing the four corner supports during the lifting process of the lifting platform. The reinforcement component includes multiple groups of support columns and linkage mechanisms. The upper ends of the multiple groups of support columns are provided with convex blocks, the upper ends of the convex blocks are provided with annular grooves, the inner ends of the annular grooves are provided with arc blocks, the inner ends of the convex blocks are provided with notches, the inner ends of the notches are provided with connecting shafts, the connecting shafts are connected to a group of support columns at the upper end, the lower ends of the support columns are provided with grooves, the inner ends of the grooves are provided with linkage rings, and linkage springs are provided between the linkage rings and the arc blocks at the lower end;

The linkage mechanism includes a linkage shaft located in the linkage ring, a linkage gear ring is provided at the outer end of the linkage shaft, a linkage gear groove is provided at the outer end of the linkage gear ring, the linkage gear groove and the embedded groove are connected through, a positioning groove is provided at the inner end of each group of support columns, a positioning gear is provided at the inner end of the positioning groove, an inner gear groove is provided at the outer end of the positioning gear, a silicone ring is provided at the outer end of the embedded groove, and an open groove is provided at the outer end of the silicone ring.

As a preferred technical solution of the present application, the number of embedded grooves is set to four groups, and the four groups of embedded grooves are mirror-distributed along the longitudinal and transverse central axes of the lifting platform, and both ends of the embedded grooves pass through the lower end outer surface of the lifting platform.

As a preferred technical solution of the present application, a positioning hollow column is fixed to the central end of the embedded groove, and multiple groups of support columns slide along the positioning hollow column and the embedded groove.

As the preferred technical solution of the present application, the linkage ring and the arc block are movably connected via a linkage spring, the arc block rotates along the annular groove, the annular groove is embedded in the upper inner surface of the protrusion, and the protrusion and the groove are snap-fitted into connection.

As a preferred technical solution of the present application, the center of the protrusion is penetrated by a notch, and a connecting shaft is connected to a group of linkage shafts at the upper end to move up and down along the notch.

As the preferred technical solution of the present application, the front and rear inner ends of the positioning hollow column and the embedded groove are embedded with sliding grooves, the inner end of the sliding groove is fixedly connected to the linkage tooth groove, the inner end of the linkage tooth groove is meshingly connected to the linkage gear ring, and the center of the linkage gear ring is fixedly connected to the linkage shaft.

As a preferred technical solution of the present application, the linkage ring is wrapped around the central outer end of the linkage shaft, the outer end of the linkage shaft is provided with a through hole, and the through hole penetrates the outer end of the support column.

As a preferred technical solution of the present application, the inner tooth groove is embedded and installed on the inner surface of the embedded groove.

As a preferred technical solution of the present application, the positioning groove is located at the side end of the support column, and the inner end of the positioning groove is movably connected to the positioning gear.

As a preferred technical solution of the present application, the outer end of the positioning gear is meshedly connected with the inner tooth groove, a silicone ring is fixed at the outer end opening of the embedded groove, and the open groove and the inner tooth groove penetrate each other, and the inner cross-section size of the silicone ring is smaller than the outer cross-section size of the support column.

Compared with the prior art, the present invention has the following beneficial effects:

In the scheme of this application:

1. By setting up reinforcement components, using multiple groups of support columns and linkage mechanisms to reinforce the four corners of the lifting platform, it can ensure that the support columns remain stable during the lifting process of the lifting platform to prevent shaking or displacement due to external forces;

2. Through the linkage mechanism, it can ensure that the overall reinforcement components can be linked with the lifting power structure of the lifting platform to quickly store and unfold, so as to realize the synchronous movement of the lifting and reinforcement components;

3. By positioning the hollow column, the support column can be quickly and accurately connected and recovered.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the lifting type electric power equipment maintenance platform provided by the present application;

FIG2 is a side sectional structural diagram of an embedded groove of a lifting type electric power equipment maintenance platform provided by the present application;

FIG3 is a schematic diagram of the support column array arrangement structure of the lift-type electric power equipment maintenance platform provided in the present application;

FIG4 is a schematic diagram of a cross-sectional structure of a linkage axis of a lifting type electric power equipment maintenance platform provided by the present application;

FIG5 is an enlarged structural schematic diagram of A in FIG2 of the lifting type electric power equipment maintenance platform provided by the present application;

FIG6 is an enlarged structural schematic diagram of B in FIG3 of the lifting type electric power equipment maintenance platform provided by the present application;

FIG. 7 is an enlarged structural diagram of C in FIG. 4 of the lifting and lowering electric power equipment maintenance platform provided in the present application.

Indicated in the figure:

1. Lifting platform; 2. Lifting seat; 3. Embedded groove; 4. Positioning hollow column; 5. Slide groove; 6. Linkage tooth groove; 7. Linkage gear ring; 8. Linkage shaft; 9. Through hole; 10. Linkage ring; 11. Support column; 12. Groove; 13. Notch; 14. Bump; 15. Ring groove; 16. Arc block; 17. Linkage spring; 18. Positioning groove; 19. Positioning gear; 20. Inner tooth groove; 21. Silicone ring; 22. Open groove.

DETAILED DESCRIPTION

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict.

It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in the subsequent drawings.

As shown in FIGS. 1 to 7 , this embodiment proposes a lifting type electric power equipment maintenance platform, including a lifting platform 1 and a lifting seat 2, wherein the lifting platform 1 is provided with an embedded groove 3, and the lifting seat 2 is provided with an embedded groove, and further comprising:

A reinforcement component is used to reinforce the four corner supports of the lifting platform 1 during the lifting process. The reinforcement component includes multiple groups of support columns 11 and a linkage mechanism. The upper ends of the multiple groups of support columns 11 are provided with protrusions 14, the upper ends of the protrusions 14 are provided with an annular groove 15, the inner ends of the annular grooves 15 are provided with arc blocks 16, the inner ends of the protrusions 14 are provided with notches 13, the inner ends of the notches 13 are provided with connecting shafts, the connecting shafts connect a group of support columns 11 at the upper ends, the lower ends of the support columns 11 are provided with grooves 12, the inner ends of the grooves 12 are provided with linkage rings 10, and linkage springs 17 are provided between the linkage rings 10 and the arc blocks 16 at the lower ends.

The number of the embedded grooves 3 is set to four groups, and the four groups of embedded grooves 3 are mirror-distributed along the longitudinal and transverse central axes of the lifting platform 1 , and both ends of the embedded grooves 3 pass through the lower end outer surface of the lifting platform 1 .

The four sets of embedded grooves 3 are respectively located at the four corners of the lifting platform 1, so that when the lifting platform 1 moves up and down along the lifting seat 2, the support columns 11 connected by the embedded grooves 3 are stacked and connected;

A limiting structure is provided between the groove 12 and the protrusion 14, so as to facilitate the stable stacking and positioning of the support column 11 when the groove 12 and the protrusion 14 are adhered to each other;

A positioning hollow column 4 is fixed at the central end of the embedded groove 3 , and a plurality of groups of support columns 11 slide along the positioning hollow column 4 and the embedded groove 3 .

The first support column 11 of the plurality of groups of support columns 11 is fixed on the lifting seat 2, and the remaining support columns 11 are connected along the embedded groove 3 and the positioning hollow column 4, and the tail end of each entire support column 11 is connected to the lifting component of the elevator to facilitate the recovery of the auxiliary support column 11.

By setting the positioning hollow column 4, it is convenient to penetrate the embedded groove 3, and when the lifting platform 1 is lifted, several groups of auxiliary connected support columns 11 slide along the embedded groove 3 in the positioning hollow column 4, to prevent the support columns 11 hanging at the lower end of the lifting platform 1 that do not play a role in supporting the lifting platform 1 from shaking due to wind or the movement of construction workers above when the lifting platform 1 is relatively high, thereby preventing the lifting platform 1 from being unstable.

The linkage ring 10 and the arc block 16 are movably connected via a linkage spring 17 . The arc block 16 rotates along the annular groove 15 . The annular groove 15 is embedded in the upper inner surface of the protrusion 14 . The protrusion 14 and the groove 12 are snap-fitted and connected.

The center of the protrusion 14 is penetrated by a notch 13 , and a connecting shaft is connected to a group of linkage shafts 8 at the upper end to move up and down along the notch 13 .

The linkage ring 10 and the arc block 16 move through the linkage spring 17. After the corresponding support column 11 moves out along the lower opening of the outer end of each group of embedded grooves 3, the protrusion 14 and the groove 12 can be quickly merged with each other through the linkage spring 17 when the support column 11 is not limited by the linkage gear ring 7 and the positioning gear 19, thereby supporting the lifting platform 1. When the lifting platform 1 rises to a certain height and stops, the stacking between the support columns 11 can be well supported and positioned through the linkage springs 17 between each other. In this process, the linkage gear ring 7 and the positioning gear 19 are respectively limited with the linkage tooth groove 6 and the inner tooth groove 20, and the internal bending structure of the embedded groove 3, so that the structural limitation of the lifting platform 1 when positioning is achieved.

As shown in Figures 5 to 7, as a preferred embodiment, on the basis of the above method, the linkage mechanism further includes a linkage shaft 8 located in a linkage ring 10, a linkage gear ring 7 is provided at the outer end of the linkage shaft 8, a linkage tooth groove 6 is provided at the outer end of the linkage gear ring 7, the linkage tooth groove 6 is through-connected with the embedded groove 3, a positioning groove 18 is provided at the inner end of each group of support columns 11, a positioning gear 19 is provided at the inner end of the positioning groove 18, an inner tooth groove 20 is provided at the outer end of the positioning gear 19, a silicone ring 21 is provided at the outer end of the embedded groove 3, and an open groove 22 is provided at the outer end of the silicone ring 21.

The front and rear inner ends of the positioning hollow column 4 and the embedded groove 3 are both embedded with a slide groove 5, the inner end of the slide groove 5 is fixedly connected to the linkage tooth groove 6, the inner end of the linkage tooth groove 6 is meshed with the linkage gear ring 7, and the center of the linkage gear ring 7 is fixedly connected to the linkage shaft 8.

The linkage ring 10 is wrapped around the central outer end of the linkage shaft 8 . The outer end of the linkage shaft 8 is provided with a through hole 9 , and the through hole 9 penetrates the outer end of the support column 11 .

The inner tooth groove 20 is embedded and installed in the inner surface of the embedded groove 3 . The positioning groove 18 is located at the side end of the support column 11 , and the inner end of the positioning groove 18 is movably connected to the positioning gear 19 .

The outer end of the positioning gear 19 is meshed with the inner tooth groove 20 , and the silicone ring 21 is fixed at the outer end opening of the embedded groove 3 , and the open groove 22 and the inner tooth groove 20 penetrate each other, and the inner cross-section size of the silicone ring 21 is smaller than the outer cross-section size of the support column 11 .

The linkage gear ring 7 connected to the outer end of the linkage shaft 8 is connected to the linkage tooth groove 6, and the support column 11 is connected to the inner tooth groove 20 through the positioning gear 19. When the multiple support columns 11 move in the embedded groove 3, it can ensure that the linkage spring 17 is in a stretched state. When the positioning gear 19 outside the support column 11 leaves the inner tooth groove 20, and the linkage gear ring 7 of the upper end group leaves the linkage tooth groove 6, the protrusions 14 of the corresponding two groups of support columns 11 are correspondingly engaged with the grooves 12;

When the lifting platform 1 moves downward, the tail end of each support column 11 is connected to the lifting structure, and each support column 11 is recovered. At the same time, each corresponding group of support columns 11 is first blocked by the silicone ring 21 until the connecting shaft in the upper group of support columns 11 moves to the uppermost end along the notch 13 in the protrusion 14 (at this time the linkage spring 17 is stretched to the maximum). At this time, the positioning gear 19 at the outer end of the group of support columns 11 is inserted into the inner tooth groove 20 through the open groove 22. This structure can ensure that the support columns 11 between the two groups can move conveniently in the embedded groove 3.

By setting the positioning hollow column 4, the support column 11 can be quickly and accurately connected and recovered.

In this solution, the linkage mechanism can ensure that the support columns 11 remain synchronized during the lifting process of the lifting platform 1, thereby preventing instability caused by relative displacement between the support columns 11.

Low altitude state:

When the lifting platform 1 is in a low height state, all the support columns 11 have been retracted into the lifting seat 2, or some of the support columns 11 are still sliding in the lifting platform 1. At this time, the distance between the lifting platform 1 and the power and electrical equipment is relatively close, which is convenient for maintenance personnel to perform close-range inspection and maintenance work. Since the number of support columns 11 is small or not fully deployed, the overall structure is relatively compact and the stability is relatively low. However, since the center of gravity of the platform is low, the overall stability is still good. In this state, maintenance personnel can use hand-held tools or small equipment to perform simple maintenance tasks, such as tightening screws, cleaning surfaces, etc.

High altitude state:

When the lifting platform 1 reaches the high altitude state, all the support columns 11 have been unfolded and stably supported on the lifting platform 1. At this time, the lifting platform 1 is far away from the power and electrical equipment, and maintenance personnel can stand on the platform to conduct comprehensive inspection and maintenance work on the equipment. Since the number of support columns 11 is large and evenly distributed, the overall structural stability is high and can withstand large loads and external impacts. In this state, maintenance personnel can use large equipment to perform complex maintenance tasks, such as replacing parts, conducting electrical tests, etc.

Example 1: Working platform at low height

Under low height state, the height of lifting platform 1 is set at about 3 meters, which is suitable for overhauling ground or low-level electric power equipment. At this time, all support columns 11 have been fully unfolded and stably supported on lifting platform 1.

Structural connection method:

The support column 11 is connected to the lifting platform 1 via the embedded groove 3 . The design of the embedded groove 3 enables the support column 11 to be quickly and accurately inserted into and fixed on the lifting platform 1 .

Example 2: Working platform at high altitude

Under high altitude state, the height of lifting platform 1 can reach more than 10 meters, which is suitable for overhauling high-rise electric power equipment. At this time, all support columns 11 have been unfolded and stably supported on lifting platform 1, forming a stable working platform.

Structural connection method:

Similar to the low-height state, the support column 11 is connected to the lifting platform 1 through the embedded groove 3.

In the high-altitude state, in order to ensure the stability of the support column 11, the inner end of each support column 11 is connected to the spring through the positioning gear 19 and the inner tooth groove 20, so as to conveniently perform the card-embedded connection between the support columns 11 to ensure a stable connection.

Working principle:

When the maintenance personnel need to enter the working area in a low-altitude state or a high-altitude state, the maintenance personnel enter the working area through the safety door at the edge of the platform, they raise the lifting platform 1 to a specified height, and start the maintenance work.

During the work process, if the height or position of the platform needs to be adjusted, the maintenance personnel can operate the lifting and moving of the platform through the control device.

When the work is completed, the maintenance personnel can lower the platform back to its original position through the control device to facilitate subsequent work or storage.

When the present application is in use: the linkage ring 10 and the arc block 16 move through the linkage spring 17, and after the corresponding support column 11 moves out along the lower opening of the outer end of each group of embedded grooves 3, the projection 14 and the groove 12 can be quickly merged by the linkage spring 17 when the support column 11 is not limited by the linkage gear ring 7 and the positioning gear 19, so as to realize the support of the lifting platform 1. When the lifting platform 1 rises to a certain height and stops, the mutual linkage springs 17 can well support and position the stacking between the support columns 11, and in this process, the linkage gear ring 7 and the positioning gear 19 are respectively limited by the linkage tooth groove 6 and the inner tooth groove 20, and the internal bending structure of the embedded groove 3, so that the structural limitation of the lifting platform 1 when it is positioned is realized;

The linkage gear ring 7 connected to the outer end of the linkage shaft 8 is connected to the linkage tooth groove 6, and the support column 11 is connected to the inner tooth groove 20 through the positioning gear 19. When the multiple support columns 11 move in the embedded groove 3, it can ensure that the linkage spring 17 is in a stretched state. When the positioning gear 19 outside the support column 11 leaves the inner tooth groove 20, and the linkage gear ring 7 of the upper end group leaves the linkage tooth groove 6, the protrusions 14 of the corresponding two groups of support columns 11 are correspondingly engaged with the grooves 12;

When the lifting platform 1 moves downward, the tail end of each support column 11 is connected to the lifting structure, and each support column 11 is recovered. At the same time, each corresponding group of support columns 11 is first blocked by the silicone ring 21 until the connecting shaft in the upper group of support columns 11 moves to the uppermost end along the notch 13 in the protrusion 14 (at this time the linkage spring 17 is stretched to the maximum). At this time, the positioning gear 19 at the outer end of the group of support columns 11 is inserted into the inner tooth groove 20 through the open groove 22. This structure can ensure that the support columns 11 between the two groups can move conveniently in the embedded groove 3.

The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims (10)

1. Lifting type power electrical equipment overhauls platform, including lift platform (1) and lifting seat (2), its characterized in that, be equipped with embedded groove (3) in lift platform (1), be equipped with the embedded groove in lifting seat (2), still include:

The reinforcing assembly is used for supporting and reinforcing four corners of the lifting platform (1) in the lifting process and comprises a plurality of groups of supporting columns (11) and a linkage mechanism, wherein the upper ends of the supporting columns (11) are provided with protruding blocks (14), the upper ends of the protruding blocks (14) are provided with annular grooves (15), the inner ends of the annular grooves (15) are provided with arc-shaped blocks (16), the inner ends of the protruding blocks (14) are provided with notches (13), the inner ends of the notches (13) are provided with connecting shafts, the connecting shafts are connected with a group of supporting columns (11) at the upper end, the lower ends of the supporting columns (11) are provided with grooves (12), the inner ends of the grooves (12) are provided with linkage rings (10), and linkage springs (17) are arranged between the linkage rings (10) and the arc-shaped blocks (16) at the lower end;

The linkage mechanism comprises a linkage shaft (8) positioned in a linkage ring (10), the outer end of the linkage shaft (8) is provided with a linkage toothed ring (7), the outer end of the linkage toothed ring (7) is provided with a linkage tooth groove (6), the linkage tooth groove (6) is connected with an embedded groove (3) in a penetrating manner, the inner ends of support columns (11) are provided with positioning grooves (18), the inner ends of the positioning grooves (18) are provided with positioning gears (19), the outer ends of the positioning gears (19) are provided with inner tooth grooves (20), the outer ends of the embedded grooves (3) are provided with silica gel rings (21), and the outer ends of the silica gel rings (21) are provided with open grooves (22).

2. The lifting type electric equipment maintenance platform according to claim 1, wherein the number of the embedded grooves (3) is four, the four embedded grooves (3) are distributed along the longitudinal and transverse central axis mirror image of the lifting platform (1), and two ends of the embedded grooves (3) penetrate through the outer surface of the lower end of the lifting platform (1).

3. Lifting type electric equipment maintenance platform according to claim 2, characterized in that the central end of the embedded groove (3) is fixed with a positioning hollow column (4), and a plurality of groups of support columns (11) slide along the positioning hollow column (4) and the embedded groove (3).

4. A lifting type electric equipment maintenance platform according to claim 3, characterized in that the linkage ring (10) is movably connected with the arc-shaped block (16) through a linkage spring (17), the arc-shaped block (16) rotates along the annular groove (15), the annular groove (15) is embedded and installed on the inner surface of the upper end of the protruding block (14), and the protruding block (14) is connected with the groove (12) in a clamping mode.

5. Lifting electrical equipment maintenance platform according to claim 4, characterized in that the centre of the lug (14) is penetrated by a notch (13) and the connecting shaft connects the upper set of the linkage shafts (8) to move up and down along the notch (13).

6. The lifting type electric power and electrical equipment maintenance platform according to claim 5, wherein the front and rear inner ends of the positioning hollow column (4) and the embedded groove (3) are embedded with sliding grooves (5), the inner ends of the sliding grooves (5) are fixedly connected with linkage tooth grooves (6), the inner ends of the linkage tooth grooves (6) are in meshed connection with a linkage toothed ring (7), and the center of the linkage toothed ring (7) is fixedly connected with a linkage shaft (8).

7. The lifting type electric equipment maintenance platform according to claim 6, wherein the linkage ring (10) is wrapped at the central outer end of the linkage shaft (8), a through hole (9) is formed in the outer end of the linkage shaft (8), and the through hole (9) penetrates through the outer end of the supporting column (11).

8. Lifting electrical equipment service platform according to claim 1, characterized in that the internal tooth groove (20) is embedded in the inner surface of the internal groove (3).

9. Lifting type electrical equipment maintenance platform according to claim 1, characterized in that the positioning groove (18) is positioned at the side end of the supporting column (11), and the inner end of the positioning groove (18) is movably connected with the positioning gear (19).

10. Lifting type electric equipment maintenance platform according to claim 1, characterized in that the outer end of the positioning gear (19) is connected with the inner tooth socket (20) in a meshed manner, the silica gel ring (21) is fixed at the opening of the outer end of the inner embedded groove (3), the opening groove (22) and the inner tooth groove (20) penetrate each other, and the inner section size of the silica gel ring (21) is smaller than the outer section size of the supporting column (11).