Step ladder device for transformer crossing pipeline
By designing an assemblable step ladder device, the problem of difficult passage in complex pipeline areas around transformers was solved, realizing a fast and safe passage path and improving work efficiency and safety.
Patent Information
- Application Number
- CN202423160197.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The complex layout of oil collection pipelines around the transformer makes it difficult for workers to cross directly, resulting in low maintenance efficiency and safety risks.
Design an assemblable step ladder device, including footboards, baffles, walkway platforms, guardrails, and fixing plates, which is installed on the transformer pipes via alternating left and right steel ladders to provide a convenient passageway.
It increases the speed at which workers can cross pipelines, ensuring safety and efficiency, and reducing safety risks, especially enabling them to quickly approach transformers for troubleshooting or emergency repairs in emergencies.
Smart Images

Figure CN223621518U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of transformer auxiliary tools, and relates to a step ladder device for transformer crossing pipelines. Background Technology
[0002] When a transformer adopts a split-structure design, it is usually equipped with a complex oil collection pipeline system to connect the transformer body and the radiator for heat dissipation. These oil collection pipelines not only ensure the safety of transformer operation and the cleanliness of the environment, but also pose certain challenges to the convenience of maintenance work. Especially in areas where the pipeline layout is high and complex, workers often face considerable obstacles when they need to observe, inspect, or repair the transformer body at close range.
[0003] Due to the height and density of the pipelines, workers find it difficult to cross these obstacles directly and are forced to take detours to approach the transformers. This not only increases working time and physical exertion, reducing work efficiency, but also, in emergencies requiring rapid fault diagnosis or repair of the transformers, detours may delay valuable processing time, posing a potential threat to the stable operation of the power system.
[0004] Furthermore, taking detours can increase safety risks. When searching for a passable route, workers may enter unfamiliar areas that may conceal other unmarked hazards, such as power lines, sharp objects, or unstable terrain, thereby increasing the risk of accidental injury. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model provides a step ladder device for transformer crossing pipelines. This device is an assemblable step ladder, which is convenient to install, increases the speed at which workers cross pipelines, and ensures the safety of construction personnel.
[0006] This utility model is achieved through the following technical solution:
[0007] A step ladder device for crossing pipelines for transformers includes,
[0008] Foot pedals, barriers, walkway platforms, guardrails, and mounting plates;
[0009] The foot pedal is fixedly connected to the passageway platform. The baffle is installed on both sides of the foot pedal, and the guardrail is installed on the outer edge of the foot pedal and the passageway platform. The fixing plate is fixedly installed on the back of the foot pedal.
[0010] The step ladder includes a left steel ladder and a right steel ladder; the left steel ladder and the right steel ladder are arranged symmetrically and are detachably installed on the transformer's pipes.
[0011] Preferably, a support is provided below the pipe, and the connection between the left and right steel ladders and the transformer pipe is realized through the fixed connection between the support and the fixing plate.
[0012] Preferably, a reinforcing plate is provided between the fixing plate and the passageway platform.
[0013] Preferably, a reinforcing plate is provided between the fixing plate and the foot pedal.
[0014] Preferably, the fixing plate and the bracket are fixedly connected by a bolt and nut assembly.
[0015] Preferably, the left and right steel ladders are horizontally symmetrical and vertically staggered on the pipe.
[0016] Preferably, the foot pedal and the baffle are welded together; the back of the foot pedal is welded together with the fixing plate; and the pipe is welded together with the bracket.
[0017] Preferably, the passageway platform is arranged parallel to the fixed plate and parallel to the ground.
[0018] Preferably, the foot pedal is made of non-slip diamond-patterned steel plate, and the passageway platform is made of non-slip diamond-patterned steel plate.
[0019] Compared with the prior art, the present invention has the following beneficial technical effects:
[0020] This utility model discloses a step ladder device for transformers crossing pipelines. The step ladder includes a left-side steel ladder and a right-side steel ladder, which is easy to assemble, simple and lightweight in structure, and fixed to the pipeline support. The ladder has footboards, reinforcing plates, a passageway platform, fixing plates, and guardrails. This structure, when the transformer has a split structure, allows workers to easily cross the pipeline and get close to the transformer body for observation and maintenance by installing a step ladder on the oil collecting pipeline, ensuring worker safety while improving work efficiency.
[0021] Furthermore, the step ladder is detachable, making it convenient for transportation and handling. The installation of the step ladder is simple and quick, effectively improving work efficiency.
[0022] Furthermore, the width of the step ladder can be fixed, and the height of the step ladder can be adjusted according to the actual space conditions and pipe height on site. And, if space permits, the step ladder can be installed as a single unit.
[0023] Furthermore, the foot pedals and walkway platforms are made of non-slip diamond-patterned steel plates. The diamond-patterned design increases the surface roughness, thereby improving the coefficient of friction. This design allows users to maintain stability in wet or oily environments, reducing the risk of slipping and falling, and significantly improving safety in workplaces or public areas. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of a staircase.
[0025] Figure 2 This is a schematic diagram of a step ladder fixed to a pipe;
[0026] Figure 3 This is a side view of the staircase and pipes.
[0027] In the diagram: 1. Foot pedal; 2. Baffle; 3. Passageway platform; 4. Guardrail; 5. Reinforcing plate; 6. Fixing plate; 7. Pipe; 8. Support. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.
[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0030] This utility model relates to a step ladder for the oil collector pipe of a split transformer. Its main function is to address the problem of difficult passage for workers when crossing the oil collector pipe of a split transformer, which hinders observation and maintenance of the transformer equipment. The step ladder is constructed entirely of steel and can be custom-made according to the shape and size of the pipe; its height and width can be adjusted according to actual conditions. Installing the step ladder on the pipe allows workers to easily cross it and approach the transformer body for observation and maintenance.
[0031] The two parts of the step ladder are installed together as one unit, making it convenient for people to go up and down. Figure 1As shown, it includes a foot pedal 1, a baffle 2, a passageway platform 3, a guardrail 4, and a fixing plate 6; the foot pedal 1 is fixedly connected to the passageway platform 3, the baffle 2 is installed on both sides of the foot pedal 1, and the guardrail 4 is installed on the outer edges of the foot pedal 1 and the passageway platform 3; the fixing plate 6 is fixedly installed on the back of the foot pedal 1; the guardrail 4 is welded to the foot pedal 1 and the passageway platform 3. Figure 1 The height H of the step ladder can be adjusted according to the actual pipe height, making it highly usable and wide. Figure 3 The D-axis can be fixed, facilitating modularization and standardization.
[0032] Foot pedal 1 is installed in a sloping shape, and the passageway platform 3 is parallel to the horizontal plane; foot pedal 1 has a base plate and a ladder composed of right-angled steps, the right-angled steps are evenly arranged on the base plate and are fixedly connected by welding.
[0033] The base plates on one side edge of the fixed plate 6 are welded and fixedly connected; the passageway platform 3 is arranged parallel to the fixed plate 6 and parallel to the ground.
[0034] like Figure 2 As shown, the step ladder includes a left steel ladder and a right steel ladder; the left and right steel ladders are symmetrically arranged in an alternating manner and can be detachably installed on the transformer. The left and right steel ladders are horizontally symmetrical and vertically staggered on the pipeline. The step ladder is divided into two parts, and the left and right steel ladders can be assembled and disassembled, or installed separately according to the site space.
[0035] Since the fixing plate 6 extends from the end near the pipe, the installation positions of the fixing plates 6 on the left and right steel ladders and the bracket 8 need to be horizontally staggered to meet the actual requirements. The bracket 8 is a frame structure formed by steel welding, with one end of its edge being arc-shaped and welded to the pipe. The other end is connected to the fixing plate 6 by bolts and nuts.
[0036] like Figure 3 As shown, a support 8 is installed below the pipe 7. The connection between the support 8 and the fixing plate 6 enables the connection between the left and right steel ladders and the transformer's pipe 7. The transformer's pipe 7 can be circular or rectangular.
[0037] A longitudinal reinforcing plate is provided between the fixing plate 6 and the passageway platform 3 to stabilize the installation between the fixing plate 6 and the passageway platform 3; one end of the longitudinal reinforcing plate is welded to the bottom of the passageway platform 3, and the other end of the longitudinal reinforcing plate is welded to the front of the fixing plate 6.
[0038] An inclined reinforcing plate is provided between the fixing plate 6 and the foot pedal 1 to stabilize the installation between the fixing plate 6 and the passageway platform 3; one end of the inclined reinforcing plate is welded to the back base plate of the foot pedal 1, and the other end of the inclined reinforcing plate is welded to the side of the fixing plate 6.
[0039] Both the fixing plate 6 and the bracket 8 are provided with mounting holes; the fixing plate 6 and the bracket 8 are fixedly connected by bolt and nut assembly, which facilitates disassembly and assembly.
[0040] The foot pedal 1 and the baffle 2 are welded together; the back of the foot pedal 1 is welded together with the fixing plate 6; and the pipe 7 is welded together with the bracket 8.
[0041] A further improvement of this utility model is that the step ladder includes two steel ladders, a left steel ladder and a right steel ladder, which are easy to assemble, have a simple and lightweight structure, and the ladder has foot pedals, reinforcing plates, a passageway platform, a fixing plate and a guardrail; the foot pedals are made of patterned steel plates for anti-slip, and the guardrails are made of steel pipes, which not only ensures the safety and stability of the ladder, but also makes it convenient for workers to grip.
[0042] A further improvement of this utility model is that the ladder is detachable, which facilitates transportation and handling, and the installation of the step ladder is simple and quick, effectively improving work efficiency.
[0043] A further improvement of this invention is that the width of the step ladder can be fixed, and the height of the step ladder can be adjusted according to the pipeline, taking into account the actual space conditions and pipe height on site. Furthermore, if space permits, the step ladder can be installed as a single unit.
[0044] The foot pedal 1 and the walkway platform 3 are both made of non-slip diamond-patterned steel plate. The diamond-patterned design increases surface roughness, thereby improving the coefficient of friction. This design allows users to maintain stability in wet or oily environments, reducing the risk of slipping and falling, and significantly improving safety in workplaces or public areas. The diamond pattern not only provides anti-slip properties but also enhances the overall strength and rigidity of the steel plate. This structure makes the steel plate more resistant to wear, corrosion, and impact, extending the service life of the foot pedal 1 and walkway platform 3, reducing the frequency of maintenance and replacement, and thus lowering costs.
[0045] It should be noted that the terms "left side," "right side," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be in a centered component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may also be in a centered component. When a component is said to be "set to" another component, it can be directly set on the other component or it may also be in a centered component.
[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A step ladder device for transformers crossing pipelines, characterized in that, include, Foot pedal (1), baffle (2), passageway platform (3), guardrail (4) and fixing plate (6); The foot pedal (1) is fixedly connected to the passageway platform (3), the baffle (2) is installed on both sides of the foot pedal (1), the guardrail (4) is installed on the outer edge of the foot pedal (1) and the passageway platform (3); the fixing plate (6) is fixedly installed on the back of the foot pedal (1); The step ladder includes a left steel ladder and a right steel ladder; the left steel ladder and the right steel ladder are arranged symmetrically and can be detachably installed on the transformer pipe (7).
2. The step ladder device for transformer crossing pipelines according to claim 1, characterized in that, A support (8) is provided below the pipe (7). The connection between the left and right steel ladders and the transformer pipe (7) is realized through the fixed connection between the support (8) and the fixed plate (6).
3. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, A reinforcing plate (5) is provided between the fixed plate (6) and the passageway platform (3).
4. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, A reinforcing plate (5) is provided between the fixing plate (6) and the foot pedal (1).
5. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, The passageway platform (3) is made of anti-slip diamond-patterned steel plate.
6. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, The fixing plate (6) and the bracket (8) are fixedly connected by a bolt and nut assembly.
7. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, The left and right steel ladders are horizontally symmetrical and vertically staggered on the pipe (7).
8. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, The foot pedal (1) and the baffle (2) are welded together; the back of the foot pedal (1) is welded together with the fixing plate (6); and the pipe (7) is welded together with the bracket (8).
9. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, The passageway platform (3) is arranged in parallel with the fixed plate (6) and is parallel to the ground.
10. A step ladder device for crossing pipelines for transformers according to claim 1, characterized in that, The foot pedal (1) is made of anti-slip diamond-patterned steel plate.