Annular insulation maintenance platform

Abstract

The invention discloses an annular insulation maintenance platform, and relates to the technical field of electric power maintenance, the annular insulation maintenance platform comprises at least two insulation top plates, any two adjacent insulation top plates are rotatably connected, so the insulation top plates can enclose to form an annular maintenance platform sleeving a to-be-maintained transformer bushing; the supporting legs are arranged at the bottom of the insulating top plate and used for supporting the insulating top plate; and the locking piece is arranged between the two adjacent insulating top plates and is used for fixing the relative position between the two adjacent insulating top plates. Therefore, the annular maintenance platform can be defined by the insulating top plate, so that an operator can stand on the annular maintenance platform to maintain the transformer bushing, the safety requirement of maintenance is met, bushing equipment is prevented from being damaged, and meanwhile, the annular maintenance platform is simple in structure, convenient to assemble and safe to operate; and the safety and the maintenance efficiency of the maintenance operation are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power maintenance, and more particularly to an annular insulation maintenance platform. Background Art

[0002] Currently, the maintenance process for low-voltage and neutral-point bushings on 1000kV ultra-high voltage transformers faces the following challenges: The top of the transformer bushing to be inspected is approximately 2.6 meters from the bushing riser, making it difficult for workers to perform maintenance work while standing on the riser. This typically requires the use of an insulated ladder or lift truck. However, insulated ladders present risks of tipping over and falling, while lift trucks have blind spots and are prone to collisions with equipment. Consequently, this conventional approach not only poses safety risks to workers and damages the bushing equipment, but also severely impacts maintenance efficiency.

[0003] In summary, how to safely and conveniently perform maintenance work on transformer bushings is a problem that currently needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an annular insulation maintenance platform, on which operators stand to inspect the transformer bushing, which not only avoids damage to the bushing equipment, but also improves the safety and efficiency of the maintenance work.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A ring-shaped insulation maintenance platform, comprising:

[0007] At least two insulating top plates, any two adjacent insulating top plates are rotatably connected so that the insulating top plates can be enclosed to form an annular maintenance platform that is sleeved outside the transformer bushing to be repaired;

[0008] A support leg provided at the bottom of the insulating top plate, for supporting the insulating top plate;

[0009] The locking member is provided between two adjacent insulating top plates and is used for fixing the relative position between the two adjacent insulating top plates.

[0010] Preferably, the support leg includes a top plate for connecting to the bottom surface of the insulating top plate, a fixing seat for connecting to the sleeve raising seat, and a support rod for connecting the top plate and the fixing seat, and the fixing seat is connected to the sleeve raising seat by anchor bolts.

[0011] Preferably, the support rod includes at least two layers of nested sleeves. One of the adjacent two sleeves is provided with connection holes for installing adjustment bolts, and the other is evenly provided with a plurality of adjustment holes for installing adjustment bolts along the length direction.

[0012] Preferably, the support rod, the anchor bolt, and the connecting member for connecting the top plate and the insulating top plate are all insulating members.

[0013] Preferably, at least two support legs are provided at the bottom of the insulating top plate, and the support legs are evenly arranged along the circumferential direction of the insulating top plate.

[0014] Preferably, an auxiliary insulating plate is further included. The bottom of the auxiliary insulating plate is provided with auxiliary support legs. The height of the auxiliary support legs is less than the height of the support legs, and any two adjacent auxiliary insulating plates are rotatable and fixedly connected so that the auxiliary insulating plates enclose to form an auxiliary platform sleeved outside the annular maintenance platform.

[0015] Preferably, a mounting seat is provided in the middle of the support leg, a connecting plate is provided at the inner edge of the auxiliary insulating plate, and the connecting plate is connected to the mounting seat through an auxiliary connecting member.

[0016] Preferably, at least one safety sling hanging point is provided on the top surface or the outer peripheral surface of the annular maintenance platform.

[0017] Preferably, the insulating top plate is in a fan-shaped ring, and the inner diameter of the insulating top plate is the same as the outer diameter of the transformer bushing.

[0018] Preferably, the locking member is provided at the bottom of the insulating top plate, and the locking members are evenly arranged along the radial direction of the insulating top plate.

[0019] The annular insulating maintenance platform provided by the present invention can use the insulating top plate to enclose an annular maintenance platform so that operators can stand on the annular maintenance platform to maintain the transformer bushing, which not only meets the safety requirements of maintenance, avoids damage to the bushing equipment, but also has a simple structure, convenient assembly, safe operation, and effectively improves the safety and efficiency of maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1Schematic diagram of the first specific embodiment of the annular insulating maintenance platform provided by the present invention;

[0022] Figure 2 It is a bottom view schematic diagram of the insulating top plate;

[0023] Figure 3 Schematic diagram of the second specific embodiment of the annular insulating maintenance platform provided by the present invention.

[0024] Figures 1 - 3 In the figure:

[0025] 1 - insulating top plate; 2 - support leg; 3 - rotating shaft; 4 - limit buckle; 5 - auxiliary insulating plate; 6 - auxiliary support leg. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0027] The core of the present invention is to provide an annular insulating maintenance platform. The operator stands on the annular maintenance platform to maintain the transformer bushing, which not only avoids damage to the bushing equipment but also improves the safety and efficiency of the maintenance operation.

[0028] The annular insulating maintenance platform provided by the present invention includes:

[0029] At least two insulating top plates 1, and any two adjacent insulating top plates 1 are rotatably connected so that the insulating top plates 1 can enclose and form an annular maintenance platform sleeved outside the transformer bushing to be maintained;

[0030] Support legs 2 provided at the bottom of the insulating top plate 1 for supporting the insulating top plate 1;

[0031] A locking member provided between two adjacent insulating top plates 1 for fixing the relative positions between two adjacent insulating top plates 1.

[0032] It should be noted that the annular maintenance platform here is not limited to a circular ring structure, and any annular structure with a closed head and tail is acceptable.

[0033] Among them, the insulating top plate 1 is used to enclose and form an annular maintenance platform. In order to ensure the personal safety of the operator, the insulating top plate 1 should be made of insulating materials, such as epoxy resin materials, etc.;

[0034] The inner diameter of the insulating top plate 1 is determined according to the outer diameter of the transformer bushing to be repaired during actual production. The inner diameter of the insulating top plate 1 should be greater than or equal to the outer diameter of the transformer bushing. The width of the insulating top plate 1 can be determined according to the repair space required by the operators and the reserved safety distance during actual production to ensure the operation safety of the operators.

[0035] The shape of the insulating top plate 1 is not limited as long as it can enclose and form an annular repair platform. For the convenience of manufacturing and transporting the insulating top plate 1, it is preferably set that the insulating top plate 1 is in a sector-annular shape. The inner diameter of the insulating top plate 1 is the same as the outer diameter of the transformer bushing, with regular shape and easy to process. Moreover, the cross-sectional area of the circular repair platform formed by enclosing is smaller and the manufacturing cost is lower.

[0036] Meanwhile, the outer edge of the insulating top plate 1 is in an arc structure, which is more conducive to the transfer and handling of the insulating top plate 1 by rolling compared with the outer edge of the insulating top plate 1 being in a fold angle structure.

[0037] For the convenience of storing the insulating top plate 1, any two adjacent insulating top plates 1 are rotatably connected. Please refer to Figure 2 , and a rotating shaft 3 is provided between two adjacent insulating top plates 1. The rotating shaft 3 is perpendicular to the insulating top plate 1. Therefore, two adjacent insulating top plates 1 can rotate around the rotating shaft 3 in the horizontal plane so that two adjacent insulating top plates 1 approach each other to enclose and form an annular repair platform, or move away from each other so that the annular repair platform disengages from the transformer bushing that has completed the repair.

[0038] Certainly, the rotating shaft 3 can also be replaced with a hinge or other similar rotating pairs as long as the axis direction of the rotating pair is the same as the axis direction of the annular repair platform.

[0039] Therefore, when repair is needed, the rotating pairs between the insulating top plates 1 of the annular repair platform can be adjusted to make them move away from each other and open the annular repair platform, move the annular repair platform to the outside of the transformer bushing to be repaired, then adjust the rotating pairs between the insulating top plates 1 to make the adjacent insulating top plates 1 approach each other and enclose to form an annular repair platform, and finally use locking parts to fix the relative positions between the insulating top plates 1 to prevent the annular repair platform from accidentally opening during the repair process and endangering the personal safety of the repair personnel.

[0040] The support legs 2 are arranged at the bottom of the insulating top plate 1 to prevent the support legs 2 from protruding outside the insulating top plate 1 and being prone to tripping the operators. The specific quantity, structure and distribution of the support legs 2 need to be determined according to the structure, shape and size of the annular repair platform during actual production to ensure that the support legs 2 can effectively support the annular repair platform and the operators on it.

[0041] Considering the size of the transformer bushing to be overhauled, at least two support legs 2 are usually provided at the bottom of the insulating top plate 1, and the support legs 2 are evenly arranged along the circumferential direction of the insulating top plate 1, so that the support legs 2 are evenly distributed at the bottom of the insulating top plate 1, thereby improving the support stability and reliability of the annular overhaul platform.

[0042] The above support legs 2 can be only evenly arranged along the circumferential direction of the insulating top plate 1. For example, a set of support legs 2 is provided at each end of the insulating top plate 1. A set of support legs 2 can be arranged as one or more support legs 2 along the radial direction of the insulating top plate 1 according to the specific structure and support capacity of the support legs 2. When the annular overhaul platform is enclosed, two sets of support legs 2 are provided at the connection of the enclosed annular overhaul platform;

[0043] Of course, the above support legs 2 can also be evenly arranged along the circumferential direction of the annular overhaul platform, as Figure 1 shown. At this time, a part of the insulating top plate 1 protrudes out of the support legs 2 to form a cantilever beam structure. It is necessary to check and calculate the support capacity of the support legs 2 for the insulating top plate 1 to reduce the downward bending deformation problem of the part of the insulating top plate 1 protruding out of the support legs 2 and avoid the height difference at the connection of the enclosed annular overhaul platform.

[0044] The locking member is used to lock and fix the relative positions between adjacent insulating top plates 1 to complete the locking and fixing of the annular overhaul platform. Specifically, it can be set as a limit buckle 4, a limit pin, a locking bolt, etc.; in order to avoid the locking member from tripping the operating personnel, the locking member is preferably arranged at the bottom of the insulating top plate 1, and the locking member is evenly arranged along the radial direction of the insulating top plate 1.

[0045] In this embodiment, the insulating top plate 1 can be used to enclose an annular overhaul platform, so that the operating personnel can stand on the annular overhaul platform to overhaul the transformer bushing, which not only meets the safety requirements of the overhaul and avoids damage to the bushing equipment, but also the annular overhaul platform has a simple structure, convenient assembly, safe operation, and effectively improves the safety and efficiency of the overhaul operation.

[0046] On the basis of the above embodiment, the support leg 2 can be set to include a top plate for connecting with the bottom surface of the insulating top plate 1, a fixed seat for connecting with the bushing lifting seat, and a support rod for connecting the top plate and the fixed seat. The fixed seat is connected to the bushing lifting seat through anchor bolts. By fixedly connecting the support leg 2 and the bushing lifting seat, the connection stability and reliability of the annular overhaul platform are further improved, so as to better ensure the safety of the operating personnel.

[0047] The connection between the top plate of the support leg 2 and the insulating top plate 1 can be a detachable connection method such as bolt connection and pin connection, which is convenient to remove the support leg 2 from the bottom of the insulating top plate 1 during storage and reduces the required storage space;

[0048] It is also possible to set the connection between the support leg 2 and the top plate and the insulating top plate 1 as a non-detachable connection method such as welding connection or bonding connection to ensure the connection strength between the insulating top plate 1 and the support leg 2, so as to ensure the stable and reliable annular maintenance platform;

[0049] In addition, the support leg 2 and the insulating top plate 1 can also be set as an integral structure.

[0050] Considering that the heights of different operators are different, in order to meet the maintenance needs of different operators, preferably, the support rod can be set to include at least two layers of nested sleeves. One of the adjacent two layers of sleeves is provided with connection holes for installing adjustment bolts, and the other is evenly provided with a plurality of adjustment holes for installing adjustment bolts along the length direction.

[0051] The adjustment bolt passes through the connection holes and adjustment holes of the adjacent two layers of sleeves, thereby fixing the relative positions of the adjacent two layers of sleeves. Therefore, by adjusting the hole positions of the adjustment holes where the adjustment bolts are located, the length of the overlapping section of the sleeves can be adjusted, and then the lengths of the support rod and the support leg 2 can be adjusted, and finally the height of the annular maintenance platform can be adjusted.

[0052] Of course, the support rod can also be set as a linear displacement power mechanism such as a hydraulic cylinder or a pneumatic cylinder, and the length of the support rod can be adjusted by the telescopic movement of the piston rod, and then the height of the annular maintenance platform can be adjusted.

[0053] On the basis of the above embodiments, in order to further ensure the personal safety of the operators, the support rod, the anchor bolt, and the connecting member for connecting the top plate of the support leg 2 and the insulating top plate 1 can be set as insulating parts, avoiding the formation of an additional current path during the maintenance process, which can not only reduce the risk of electric shock to the operators and ensure personal safety, but also effectively prevent equipment damage.

[0054] Considering that the top of the transformer bushing to be maintained is about 2.6 m away from the bushing riser, if the operator is to stand on the annular maintenance platform to complete the maintenance of the top of the transformer bushing, the height of the annular maintenance platform is usually set to 0.8 - 1.1 m, and ladders, steps, etc. often need to be set to help the operator climb above the annular maintenance platform.

[0055] On the basis of the above embodiments, the annular insulating maintenance platform further includes an auxiliary insulating plate 5. The bottom of the auxiliary insulating plate 5 is provided with an auxiliary support leg 6. The height of the auxiliary support leg 6 is less than the height of the support leg 2, and any two adjacent auxiliary insulating plates 5 are rotatable and fixedly connected, so that the auxiliary insulating plates 5 can be enclosed to form an auxiliary platform sleeved outside the annular maintenance platform.

[0056] For the structure of the auxiliary insulating plate 5 and the connection method of any two adjacent auxiliary insulating plates 5, reference can be made to the structure of the insulating top plate 1 and the connection method of any two adjacent insulating top plates 1 in the previous text;

[0057] It is preferred to set the auxiliary insulating plate 5 to a semi-circular ring structure, such as Figure 3 As shown, one end of the two auxiliary insulating plates 5 is provided with a rotating shaft perpendicular to the auxiliary insulating plates 5, and the other end is provided with locking parts such as limit buckles, limit bolts, and limit pins. The locking parts are used to fix the relative positions of the two adjacent auxiliary insulating plates 5.

[0058] In this embodiment, the auxiliary platform is mounted outside the annular maintenance platform, which can serve as a step structure to help workers climb onto the annular maintenance platform, and can also support the annular maintenance platform from the outside to improve the structural stability of the annular maintenance platform.

[0059] The auxiliary platform can be set to one level or two levels, so that the operating personnel can smoothly climb onto the circular maintenance platform by stepping on the auxiliary platform; assuming that the height of the circular maintenance platform is L, when the auxiliary platform is set to n levels (n is a positive integer), the height difference between two adjacent auxiliary platforms can be set to L / n.

[0060] Preferably, in order to further improve the stability of the annular maintenance platform, a mounting seat can be provided in the middle of the support leg 2, and a connecting plate can be provided on the inner edge of the auxiliary insulating plate 5. The connecting plate is connected to the mounting seat through an auxiliary connecting piece. By connecting the auxiliary platform and the annular maintenance platform, the overall contact area between the annular insulation maintenance platform and the casing lifting seat is increased, thereby improving the stability and reliability of the annular insulation maintenance platform.

[0061] The auxiliary connector is used to connect the mounting base and the connecting plate, and then connect and fix the support leg 2 and the auxiliary insulating plate 5, thereby connecting the auxiliary platform and the annular maintenance platform. The auxiliary connector can be specifically set as a common connector such as a connecting bolt and a connecting pin;

[0062] The specific number, structure, size and distribution of the auxiliary connecting parts are determined according to actual production needs such as design connection strength requirements, and will not be elaborated here.

[0063] On the basis of the above embodiment, in order to better ensure the personal safety of the operators and prevent the operators from accidentally falling during operation, at least one safety rope hanging point can be provided on the top surface or outer peripheral surface of the annular maintenance platform.

[0064] During operation, the operator wears safety belts and other safety equipment, hangs one end of the safety rope to the hanging point of the safety belt, and connects the other end to the safety rope hanging point of the circular maintenance platform. The length of the safety rope must be less than the height of the circular maintenance platform. Once the operator accidentally steps on empty air, the safety rope fixed to the circular maintenance platform can limit the operator's falling distance, preventing the operator from falling directly to the ground and causing serious personal injury.

[0065] To avoid the safety suspension rope hanging point from tripping the operating personnel, the safety suspension rope hanging point is preferably arranged at the outer edge of the top surface of the annular maintenance platform or on the outer peripheral surface of the annular maintenance platform; the specific structure, dimensions, installation position and installation method of the safety suspension rope hanging point can be determined according to the existing safety protection measures for aerial operation in power maintenance, which will not be elaborated here.

[0066] In this specification, each embodiment is described in a progressive manner. What each embodiment focuses on is the difference from other embodiments. For the same and similar parts among the embodiments, reference can be made to each other.

[0067] The annular insulating maintenance platform provided by the present invention has been introduced in detail above. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A ring-shaped insulation maintenance platform, characterized in that: include: At least two insulating top plates (1), any two adjacent insulating top plates (1) are rotatably connected so that the insulating top plates (1) can be enclosed to form an annular maintenance platform that is sleeved outside the transformer bushing to be repaired; Support legs (2) provided at the bottom of the insulating top plate (1) and used for supporting the insulating top plate (1); A locking member is provided between two adjacent insulating top plates (1) and is used to fix the relative position between the two adjacent insulating top plates (1).

2. The annular insulation maintenance platform according to claim 1, characterized in that: The support leg (2) comprises a top plate for connecting to the bottom surface of the insulating top plate (1), a fixing seat for connecting to the bushing raising seat, and a support rod for connecting the top plate and the fixing seat, wherein the fixing seat is connected to the bushing raising seat via anchor bolts.

3. The annular insulation maintenance platform according to claim 2, characterized in that: The support rod includes at least two layers of nested sleeves, one of the two adjacent layers of sleeves is provided with a connecting hole for installing an adjusting bolt, and the other is evenly provided with a plurality of adjusting holes for installing an adjusting bolt along the length direction.

4. The annular insulation maintenance platform according to claim 2, characterized in that: The support rods, the anchor bolts, and the connecting pieces for connecting the top plate and the insulating top plate (1) are all insulating pieces.

5. The annular insulation maintenance platform according to claim 1, characterized in that: At least two supporting legs (2) are provided at the bottom of the insulating top plate (1), and the supporting legs (2) are evenly arranged along the circumferential direction of the insulating top plate (1).

6. The annular insulation maintenance platform according to any one of claims 1 to 5, characterized in that: It also includes an auxiliary insulating plate (5), wherein the bottom of the auxiliary insulating plate (5) is provided with an auxiliary supporting leg (6), the height of the auxiliary supporting leg (6) is less than the height of the supporting leg (2), and any two adjacent auxiliary insulating plates (5) are rotatable and can be fixedly connected, so that the auxiliary insulating plates (5) enclose and form an auxiliary platform that is sleeved outside the annular maintenance platform.

7. The annular insulation maintenance platform according to claim 6, characterized in that: A mounting seat is provided in the middle of the support leg (2), and a connecting plate is provided on the inner edge of the auxiliary insulating plate (5), and the connecting plate is connected to the mounting seat via an auxiliary connecting piece.

8. The annular insulation maintenance platform according to any one of claims 1 to 5, characterized in that: The top surface or outer peripheral surface of the annular maintenance platform is provided with at least one safety rope hanging point.

9. The annular insulation maintenance platform according to any one of claims 1 to 5, characterized in that: The insulating top plate (1) is in a fan-shaped ring shape, and the inner diameter of the insulating top plate (1) is the same as the outer diameter of the transformer bushing.

10. The annular insulation maintenance platform according to any one of claims 1 to 5, characterized in that: The locking member is arranged at the bottom of the insulating top plate (1), and the locking member is evenly arranged along the radial direction of the insulating top plate (1).

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