Transformer with ladder
By designing a rotatable foldable ladder assembly on the transformer, the maintenance difficulties caused by excessive height of the gas relay is solved, and safety and space utilization are improved.
Patent Information
- Application Number
- CN202422289056.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-19
AI Technical Summary
In the prior art, the installation height of gas relays is too high, resulting in difficulty in maintenance, and the existing base design is poor in safety.
A transformer with a ladder is designed, including a ladder assembly, which consists of a first ladder leg and a second ladder leg, a pedal plate, a fixing plate and a self-locking member, and is connected to the transformer oil tank through a bracket assembly to form a rotatable and foldable ladder structure to ensure convenient access under the gas relay.
It provides convenient maintenance paths, improves safety, avoids the ladder occupying space and does not affect the electrical distance of the electrical components.
Smart Images
Figure CN223065945U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of transformer manufacturing, in particular to a transformer with a ladder. Background Art
[0002] The gas relay is one of the important protection components that must be equipped in power transformers, and it is also one of the components that must be inspected during the regular maintenance of transformers. The installation position of the gas relay is close to the conservator. In extra-high voltage and ultra-high voltage power transformers, due to the high height of the conservator, the installation height of the gas relay is also very high. For example, in a 220 kV transformer, the installation height of the gas relay is more than 1.8 meters higher than the height of the tank cover, and maintenance personnel generally stand on the tank cover of the transformer for inspection, which makes the maintenance work very difficult. Therefore, the operation and maintenance personnel of the substation require the transformer manufacturer that when the height of the gas relay exceeds the tank cover by about 1.6 meters, an installation and inspection ladder or base should be added below the relay.
[0003] Therefore, in the prior art, generally an iron metal bracket is fixed below the gas relay to ensure that the height of the relay and the bracket is controlled within the required range. At the same time, this also makes the already crowded upper surface of the tank cover more crowded. There are also operation and maintenance personnel who feedback that although the design of this base seemingly meets their requirements, the base design is similar to a small stool and its surface is painted, which is relatively slippery and has poor safety. Summary of the Utility Model
[0004] The utility model overcomes the deficiency of difficult maintenance caused by the high height of the gas relay in the prior art, and provides a transformer with a ladder. To achieve the above purpose, the technical solution adopted by the utility model is: a transformer with a ladder, which includes: an oil tank, a bracket assembly arranged on the oil tank, a conservator arranged on the bracket assembly, a gas relay arranged below the conservator, and a ladder assembly arranged below the gas relay;
[0005] The ladder assembly includes a first ladder leg and a second ladder leg arranged in parallel, a plurality of treads arranged between the first ladder leg and the second ladder leg, a first fixing plate and a second fixing plate connecting the bracket assembly with the first ladder leg and the second ladder leg;
[0006] The first ladder leg is rotatably connected to the bracket assembly through the first fixing plate, and the second ladder leg is rotatably connected to the bracket assembly through the second fixing plate.
[0007] In a preferred embodiment of the utility model, the ladder assembly is axially symmetric about the central axis.
[0008] In a preferred embodiment of the present utility model, an anti-slip rubber pad is provided at the bottom of the first ladder leg, and an anti-slip rubber pad is provided at the bottom of the second ladder leg.
[0009] In a preferred embodiment of the present utility model, the support assembly includes a plurality of support frames for supporting the conservator.
[0010] In a preferred embodiment of the present utility model, a first fixed shaft is provided on the side of the first ladder leg away from the footrest, a second fixed shaft is provided on the side of the support frame close to the first ladder leg, one end of the first fixing plate is rotatably connected to the first fixed shaft, and the other end of the first fixing plate is rotatably connected to the second fixed shaft.
[0011] In a preferred embodiment of the present utility model, a baffle is provided on the side of the first fixing plate close to the second ladder leg, the baffle is fixed to the side surface of the first fixing plate, and the height of the baffle is less than the height of the first fixing plate.
[0012] In a preferred embodiment of the present utility model, the ladder assembly further includes a self-locking member, the self-locking member includes a first lock piece, a connecting section and a second lock piece, the first lock piece is perpendicular to the connecting section, and the second lock piece is parallel to the first lock piece; the first lock piece and the second lock piece are axially symmetric about the center of the connecting section.
[0013] In a preferred embodiment of the present utility model, the first lock piece is a stainless steel sheet with a U-shaped structure, the opening direction of the first lock piece is the same as the opening direction of the second lock piece, and the opening position of the first lock piece is located on one side close to the connecting section.
[0014] In a preferred embodiment of the present utility model, a lock hole is provided at the corresponding position on the support frame;
[0015] When the fixing plate is placed vertically, the first lock piece coincides with the lock hole in the horizontal direction and is fixed by bolts.
[0016] The present utility model solves the defects existing in the background technology, and the present utility model has the following beneficial effects:
[0017] The present utility model uses the support assembly of the conservator as a fixed support. When the ladder assembly is opened, it forms an inclined angle with the support frame and is exactly below the gas relay, which is convenient for the staff to step on. When the ladder assembly is retracted, it closely adheres to the support frame, does not occupy space, and there is no need to consider the electrical distance between the ladder assembly and the electrical components. The width of the ladder assembly should be such that ordinary personnel can sit on the footrest of the ladder, and the height of the ladder is sufficient. The staff can sit on the footrest to inspect and operate the gas relay, improving safety. Description of the Drawings
[0018] 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 some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0019] Figure 1 It is a schematic overall view of a transformer with a ladder in an embodiment of the present invention;
[0020] Figure 2 For Figure 1 It is an enlarged schematic view of part A in
[0021] Figure 3 It is a front view of the ladder assembly of a transformer with a ladder in an embodiment of the present invention;
[0022] Figure 4 It is a top view of the ladder assembly of a transformer with a ladder in an embodiment of the present invention;
[0023] Figure 5 It is a front view of the self-locking member of a transformer with a ladder in an embodiment of the present invention;
[0024] Figure 6 It is a bottom view of the self-locking member of a transformer with a ladder in an embodiment of the present invention;
[0025] Figure 7 It is a schematic view of the folded ladder assembly of a transformer with a ladder in an embodiment of the present invention;
[0026] Figure 8 It is a schematic view of the locked self-locking member of a transformer with a ladder in an embodiment of the present invention.
[0027] The following is an explanation of the reference numerals:
[0028] 10 - oil tank; 20 - support assembly; 201 - support frame; 202 - pipeline; 30 - conservator; 40 - ladder assembly; 401 - first ladder leg; 402 - second ladder leg; 403 - tread board; 404 - first fixing plate; 405 - second fixing plate; 406 - anti-slip foot pad; 407 - first fixed shaft; 408 - baffle; 409 - second fixed shaft; 410 - self-locking member; 4101 - first locking piece; 4102 - connecting section; 4103 - second locking piece; 411 - locking hole; 412 - bolt; 50 - gas relay. Detailed implementation manners
[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.
[0031] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.
[0032] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.
[0033] Such as Figure 1As shown in the figure, the utility model discloses a transformer with a ladder, which includes an oil tank 10, a support assembly 20 arranged on the oil tank 10, an oil conservator 30 arranged on the support assembly 20, a ladder assembly 40 arranged on the oil tank 10, and a gas relay 50 arranged below the oil conservator 30. Among them, the ladder assembly 40 is arranged below the gas relay 50.
[0034] Referring to Figure 2 As shown in the figure, specifically, the support assembly 20 includes several support frames 201 for supporting the oil conservator 30, and a pipeline 202 for arranging the gas relay 50. The gas relay 50 is arranged on the pipeline 202. A ladder assembly 40 is arranged between the gas relay 50 and the top of the oil tank 10.
[0035] Combined with Figure 2 and Figure 3 As shown in the figure, the ladder assembly 40 includes a first ladder leg 401 and a second ladder leg 402 arranged in parallel, several treads 403 arranged between the first ladder leg 401 and the second ladder leg 402, a first fixing plate 404 and a second fixing plate 405 connecting the support assembly 20 with the first ladder leg 401 and the second ladder leg 402, and a self-locking member 410.
[0036] Each component on the second ladder leg 402 is symmetrically arranged with respect to the center axis of the ladder assembly 40 with each component on the first ladder leg 401.
[0037] Continuing to refer to Figure 2 , taking the first ladder leg 401 as an example, an anti-slip rubber pad 406 is arranged at the bottom of the first ladder leg 401. When the ladder assembly 40 is opened, the anti-slip rubber pad 406 is in reliable contact with the upper surface of the oil tank 10, which not only stabilizes the ladder assembly 40 but also prevents damage to the paint on the surface of the oil tank 10.
[0038] A first fixed shaft 407 is arranged on one side of the first ladder leg 401 away from the tread 403, and a second fixed shaft 409 is arranged on one side of the support frame 201 close to the first ladder leg 401. One end of the first fixing plate 404 is rotatably connected to the first fixed shaft 407, and the other end of the first fixing plate 404 is rotatably connected to the second fixed shaft 409. That is to say, the first ladder leg 401 and the support frame 201 form a rotational connection through the first fixing plate 404. When the first ladder leg 401 moves, the first fixed shaft 407 is always located on the circumference with the second fixed shaft 409 as the center and the length of the first fixing plate 404 as the radius.
[0039] The ladder assembly 40 is made of aluminum alloy material, which is both light and strong. The first fixing plate 404 is made of stainless steel material and does not need to be painted.
[0040] In addition, combined with Figure 4As shown in the figure, a baffle 408 is provided on one side of the first fixing plate 404 close to the second ladder leg 402. The baffle 408 is fixed to the side surface of the first fixing plate 404, and the height of the baffle 408 is less than the height of the first fixing plate 404. By setting the baffle 408 here, when the first ladder leg 401 is pulled open and the first fixing plate 404 is in a horizontal state, the baffle 408 can just clamp both ends of it, improving the stability of the entire device.
[0041] As Figure 5 shown, the self-locking member 410 includes a first locking piece 4101, a connecting section 4102 and a second locking piece 4103. The first locking piece 4101 is perpendicular to the connecting section 4102, and the second locking piece 4103 is parallel to the first locking piece 4101. The first locking piece 4101 and the second locking piece 4103 are axially symmetric about the center of the connecting section 4102. Combining Figure 6 , the first locking piece 4101 is a stainless steel sheet with a U-shaped structure. The opening direction of the first locking piece 4101 is the same as the opening direction of the second locking piece 4103, and the opening position of the first locking piece 4101 is on the side close to the connecting section 4102. A locking hole 411 is provided at the corresponding position on the support frame 201. Specifically, referring to Figure 7 and Figure 8 shown, when the first ladder leg 401 is lifted until the fixing plate is placed vertically, the first locking piece 4101 coincides with the locking hole 411 in the horizontal direction and is fixed by a bolt 412.
[0042] When the utility model works, the self-locking member 410 is lifted upward, the bolt 412 is taken out to separate the self-locking member 410 from the support frame 201, the ladder assembly 40 is pulled out until the fixing plate is horizontal, the bottoms of the first ladder leg 401 and the second ladder leg 402 are placed on the top wall of the fuel tank 10, and the top of the first ladder leg 401 is leaned against the support frame 201. After use, the ladder assembly 40 is lifted upward until the fixing plate is placed vertically, the self-locking member 410 is placed at the locking hole 411, the bolt 412 is inserted and tightened to prevent the ladder from opening by itself.
[0043] The utility model uses the support assembly 20 of the conservator 30 as a fixed support. When the ladder assembly 40 is opened, it forms an inclined angle with the support frame 201 and is exactly below the gas relay 50, which is convenient for the staff to step on. When the ladder assembly 40 is retracted, it closely adheres to the support frame 201, does not occupy space, and there is no need to consider the electrical distance between the ladder assembly 40 and the electrical components. The width of the ladder assembly 40 should be considered such that ordinary personnel can sit on the footrests of the ladder, and the height of the ladder is sufficient. The staff can sit on the footrests to check and operate the gas relay 50, improving safety.
[0044] The above embodiments only illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A transformer with a ladder, characterized in that, Including: An oil tank, a bracket assembly disposed on the oil tank, an oil conservator disposed on the bracket assembly, a gas relay disposed below the oil conservator, and a ladder assembly disposed below the gas relay; The ladder assembly includes a first ladder leg and a second ladder leg arranged in parallel, a plurality of treads disposed between the first ladder leg and the second ladder leg, a first fixing plate and a second fixing plate connecting the bracket assembly to the first ladder leg and the second ladder leg; The first ladder leg is rotatably connected to the bracket assembly through the first fixing plate, and the second ladder leg is rotatably connected to the bracket assembly through the second fixing plate.
2. The transformer with a ladder according to claim 1, wherein: The ladder assembly is axially symmetric about the central axis.
3. A transformer with a ladder according to claim 1, characterized in that: Anti-slip rubber pads are provided at the bottoms of the first ladder leg and the second ladder leg.
4. A transformer with a ladder according to claim 1, characterized in that: The bracket assembly includes a plurality of support frames for supporting the oil conservator.
5. The transformer with a ladder according to claim 4, characterized in that: A first fixed shaft is provided on a side of the first ladder leg away from the tread, a second fixed shaft is provided on a side of the support frame close to the first ladder leg, one end of the first fixing plate is rotatably connected to the first fixed shaft, and the other end of the first fixing plate is rotatably connected to the second fixed shaft.
6. The transformer with a ladder according to claim 5, characterized in that: A baffle is provided on a side of the first fixing plate close to the second ladder leg, the baffle is fixed to the side surface of the first fixing plate, and the height of the baffle is less than the height of the first fixing plate.
7. A transformer with a ladder according to claim 4, characterized in that: The ladder assembly further includes a self-locking member, the self-locking member includes a first lock piece, a connecting section, and a second lock piece, the first lock piece is perpendicular to the connecting section, and the second lock piece is parallel to the first lock piece; the first lock piece and the second lock piece are axially symmetric about the center of the connecting section.
8. A transformer with a ladder according to claim 7, characterized in that: The first lock piece is a stainless steel sheet with a U-shaped structure, the opening direction of the first lock piece is the same as the opening direction of the second lock piece, and the opening position of the first lock piece is on one side close to the connecting section.
9. A transformer with a ladder according to claim 7, characterized in that: Lock holes are provided at corresponding positions on the support frame; When the fixing plate is placed vertically, the first lock piece coincides with the lock hole in the horizontal direction and is fixed by bolts.