A DC traction substation distribution cabinet device

By designing lifting and adjusting components and protective plates, the problem of accidental touch and misalignment of the switch cabinet device in DC traction substations during inspection and maintenance has been solved, achieving safe and reliable component isolation and convenient use, and reducing the risk of equipment failure.

CN224288958UActive Publication Date: 2026-05-26JIANGSU GUODIAN NANZI HAIJI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU GUODIAN NANZI HAIJI TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the inspection and maintenance of existing DC traction substation distribution cabinets, excessive exposure of internal components leads to accidental operation and misalignment of positions.

Method used

The design incorporates a lifting and adjusting assembly and a protective plate. By moving the toggle block, the engagement relationship between the connecting rod and the cross slot can be changed, allowing the protective plate to be opened and closed independently. Only the parts of the device that need to be inspected or maintained are exposed, reducing the chance of operators coming into contact with unrelated parts.

Benefits of technology

It significantly reduces the risk of equipment failure or safety accidents caused by accidental touch, simplifies the operating environment, and improves the practicality and safety of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a DC traction substation distribution cabinet device, including a cabinet body. A closed door is movably connected to one side surface of the cabinet body, and heat dissipation holes are provided on both sides of the cabinet body. A positioning top plate is fixedly connected to one side surface of the cabinet body, and a lifting adjustment component is provided at the lower end of the positioning top plate. This utility model changes the position of the connecting rod by moving the toggle block and squeezing the limit spring, thereby changing the engagement relationship between the cross-shaped locking block and the cross-shaped slot. This allows the connecting rod and related components to rotate independently without being rotated by the circular tube, enabling the protective plate to be opened and closed independently. Only the parts that need to be inspected or maintained are exposed, which can significantly reduce the opportunity for operators to come into contact with other unrelated parts inside the cabinet, simplify the operating environment, and thus reduce the risk of equipment failure or safety accidents caused by accidental contact.
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Description

Technical Field

[0001] This utility model relates to the field of relay protection device technology, specifically a DC traction substation distribution cabinet device. Background Technology

[0002] In the current power system, the DC traction substation distribution cabinet is a key piece of equipment to ensure the safe and stable operation of the power system, especially the DC traction power supply system. It refers to an automated device that can quickly and accurately detect faults and take corresponding protective measures when power components in the DC traction power supply system fail or operate abnormally, such as issuing warning signals or directly controlling the circuit breaker to trip, in order to prevent the fault from escalating and ensure the safe and stable operation of the system.

[0003] However, when using existing equipment, only one or a certain section of the equipment needs to be inspected and maintained. But opening the entire cabinet door will expose too many areas. Excessive exposure of the internal structure can easily lead to accidental touches or incorrect operation positions during operation. Therefore, we propose a DC traction substation distribution cabinet device. Utility Model Content

[0004] One of the technical problems this application aims to solve is: addressing the issue of accidental touches and misalignment caused by excessive exposure of internal components within the cabinet.

[0005] To solve the above technical problems, this application provides a DC traction substation distribution cabinet device, including a cabinet body, a closed door movably connected to one side surface of the cabinet body, heat dissipation holes on both sides of the cabinet body, a positioning top plate fixedly connected to one side surface of the cabinet body, and a lifting adjustment component provided at the lower end of the positioning top plate;

[0006] The lifting and adjusting assembly includes a positioning plate with a limiting groove inside. A sliding roller is movably connected inside the positioning plate, and a limiting ring is fixedly connected to the side end of the sliding roller. The limiting ring and the limiting groove are mutually adapted. The lifting and adjusting assembly realizes its own lifting and self-adjustment between various areas, which can protect various positions inside the electrical box and facilitate its use.

[0007] In some embodiments, a positioning gear is movably connected to the outer side of the positioning plate, and a linkage gear is movably connected to the lower end of the positioning gear. One side surface of the linkage gear is movably connected to the outer surface of the positioning plate. The positioning gear and the linkage gear are meshed with each other. A first lifting gear is provided at the lower end of the linkage gear, and a second lifting gear is provided at the lower end of the first lifting gear. The first lifting gear and the second lifting gear are meshed with each other, and one side surface of both the first lifting gear and the second lifting gear is fixedly connected to one side surface of the sliding roller.

[0008] In some embodiments, a second rotating plate is fixedly connected to one side surface of the first lifting gear, a first rotating plate is fixedly connected to the lower end of the linkage gear and the second lifting gear, a connecting shaft is movably connected between the first rotating plate and the second rotating plate, and a connecting plate is movably connected to the outer side of the first lifting gear and the second lifting gear.

[0009] In some embodiments, a linkage plate is provided on one side surface of both the positioning gear and the first lifting gear. A single unit adjustment component is provided on one side surface of the linkage plate. The single unit adjustment component includes a circular tube. A cross groove is opened on the inner side of the circular tube. There are four sets of circular tubes. There are two circular tubes in each set. The two circular tubes are symmetrically distributed. A protective plate is provided between the two circular tubes.

[0010] In some embodiments, a limiting spring is fixedly connected to the inner side of the upper end of the protective plate. Two limiting springs are provided and are symmetrically distributed. A connecting rod is fixedly connected to the other end of the limiting spring. A cross-shaped locking block is fixedly connected to one end of the connecting rod. The cross-shaped locking block and the cross-shaped slot are mutually adapted to each other.

[0011] In some embodiments, a toggle block is fixedly connected to one side surface of the connecting rod, and an adjustment groove is provided on one side surface of the protective plate, with the toggle block movably disposed inside the adjustment groove.

[0012] In some embodiments, a vertical support is fixedly connected to one side surface of the inner side of the cabinet body, and a horizontal support is fixedly connected to one side surface of the vertical support.

[0013] In some embodiments, a labeling observation window is provided on one side surface of the protective plate, and four labeling observation windows are provided and distributed in a linear array.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. This utility model changes the position of the connecting rod by moving the toggle block and squeezing the limit spring, thereby changing the snapping relationship between the cross snap block and the cross slot. This allows the connecting rod and related components to rotate independently without being rotated by the circular tube, enabling the protective plate to be opened and closed independently. Only the parts that need to be inspected or maintained are exposed, which can significantly reduce the chance of operators coming into contact with other unrelated parts inside the cabinet, simplify the operating environment, and reduce the risk of equipment failure or safety accidents caused by accidental contact.

[0016] 2. This utility model uses a limiting spring to limit the connecting rod, and the cross-shaped locking block can be locked inside the cross-shaped slot, so that the connecting rod and related components can move synchronously with the rotation of the circular tube, realizing the overall synchronous rise and exposure, so as to achieve specific adjustment according to specific conditions. At the same time, the whole can play a protective and isolation role for the inside, improving the overall practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a left-side view.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from the left-side view.

[0019] Figure 3 This is a three-dimensional structural diagram of the right-side view portion of this utility model;

[0020] Figure 4 This is a first disassembled schematic diagram of the three-dimensional structure of this utility model;

[0021] Figure 5 This is part of the utility model. Figure 4 Enlarged view of region A in the middle;

[0022] Figure 6 This is a second split-off schematic diagram of the three-dimensional structure of this utility model;

[0023] Figure 7 This is part of the utility model. Figure 6 Enlarged view of region B in the middle;

[0024] Figure 8 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0025] In the diagram: 1. Cabinet body; 2. Closed door; 3. Ventilation vents; 4. Positioning top plate; 5. Lifting and adjusting assembly; 6. Vertical support frame; 7. Horizontal support frame; 8. Positioning plate; 9. Limiting groove; 10. Sliding roller; 11. Limiting ring; 12. Positioning gear; 13. Linkage gear; 14. Linkage plate; 15. First lifting gear; 16. Second lifting gear; 17. First rotating plate; 18. Second rotating plate; 19. Connecting shaft; 20. Linking plate; 21. Individual adjusting assembly; 22. Circular tube; 23. Cross groove; 24. Connecting rod; 25. Cross locking block; 26. Actuating block; 27. Limiting spring; 28. Adjusting groove; 29. ​​Protective plate; 30. Marking observation window. Detailed Implementation

[0026] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 This utility model provides a technical solution: a DC traction substation distribution cabinet device, including a cabinet body 1, a closed door 2 movably connected to one side surface of the cabinet body 1, and heat dissipation holes 3 on both sides of the cabinet body 1. The heat dissipation holes 3 are mainly used to facilitate heat dissipation when the internal components of the cabinet body 1 are working. A positioning top plate 4 is fixedly connected to one side surface of the inside of the cabinet body 1. A lifting adjustment component 5 is provided at the lower end of the positioning top plate 4. The positioning top plate 4 is used to fix the position of the lifting adjustment component 5 so that it is always at the front end of the components installed inside the cabinet body 1, and plays a role in protecting and isolating the front end.

[0029] The lifting and adjusting assembly 5 includes a positioning plate 8, with a limiting groove 9 inside the positioning plate 8. A sliding roller 10 is movably connected inside the positioning plate 8, and a limiting ring 11 is fixedly connected to the side end of the sliding roller 10. The limiting ring 11 and the limiting groove 9 are mutually compatible. The sliding roller 10 can be moved up and down on one side of the positioning plate 8 by utilizing the cooperation between the limiting ring 11 and the limiting groove 9. The lifting and adjusting assembly 5 can realize its own lifting and self-adjustment between different areas, thus providing protection and convenient use for various positions inside the electrical box.

[0030] A positioning gear 12 is movably connected to the outer side of the positioning plate 8. A linkage gear 13 is movably connected to the lower end of the positioning gear 12. One side surface of the linkage gear 13 is movably connected to the outer surface of the positioning plate 8. The positioning gear 12 and the linkage gear 13 are meshed with each other. When the positioning gear 12 rotates, it can drive the linkage gear 13 to rotate accordingly. A first lifting gear 15 is provided at the lower end of the linkage gear 13. A second lifting gear 16 is provided at the lower end of the first lifting gear 15. The first lifting gear 15 and the second lifting gear 16 are meshed with each other. One side surface of the first lifting gear 15 and the second lifting gear 16 are fixedly connected to one side surface of the sliding roller 10. There are multiple sets of the first lifting gear 15 and the second lifting gear 16, and there is a linkage effect between each set.

[0031] A second rotating plate 18 is fixedly connected to one side surface of the first lifting gear 15. A first rotating plate 17 is fixedly connected to the lower end of the linkage gear 13 and the second lifting gear 16. A connecting shaft 19 is movably connected between the first rotating plate 17 and the second rotating plate 18. The first lifting gear 15 and the second lifting gear 16 of the previous group and the first lifting gear 15 and the second lifting gear 16 of the next group achieve a linkage operation effect through the cooperation between the first rotating plate 17, the second rotating plate 18 and the connecting shaft 19. A connecting plate 20 is movably connected to the outer side of the first lifting gear 15 and the second lifting gear 16. The connecting plate 20 is used to fix the distance between the first lifting gear 15 and the second lifting gear 16 and stabilize their movement state.

[0032] Both the positioning gear 12 and the first lifting gear 15 have a linkage plate 14 on one side surface. A single adjustment component 21 is provided on one side surface of the linkage plate 14. The single adjustment component 21 includes a circular tube 22. A cross groove 23 is opened on the inner side of the circular tube 22. There are four sets of circular tubes 22. There are two circular tubes in one set. The two circular tubes 22 are symmetrically distributed. A protective plate 29 is provided between the two circular tubes 22. Each layer of protective plate 29 plays a role in layered isolation and protection for the electrical components installed inside.

[0033] A limiting spring 27 is fixedly connected to the inner side of the upper end of the protective plate 29. Two limiting springs 27 are provided and are symmetrically distributed. A connecting rod 24 is fixedly connected to the other end of the limiting spring 27. A cross-shaped locking block 25 is fixedly connected to one end of the connecting rod 24. The cross-shaped locking block 25 is compatible with the cross-shaped slot 23. The cross-shaped locking block 25 can be locked inside the cross-shaped slot 23, so that the connecting rod 24 and related components can move synchronously with the rotation of the circular tube 22.

[0034] A toggle block 26 is fixedly connected to one side surface of the connecting rod 24. An adjustment groove 28 is provided on one side surface of the protective plate 29. The toggle block 26 is movably disposed inside the adjustment groove 28. The limit spring 27 is used to control the specific position between the connecting rod 24 and the toggle block 26. Moving the toggle block 26 changes the position of the connecting rod 24, thereby changing the snap-fit ​​relationship between the cross snap-fit ​​block 25 and the cross groove 23.

[0035] A vertical bracket 6 is fixedly connected to one side of the inner surface of the cabinet body 1, and a horizontal bracket 7 is fixedly connected to one side of the vertical bracket 6. The vertical bracket 6 and the horizontal bracket 7 work together to facilitate the installation and use of electrical components inside the cabinet body 1.

[0036] Example 2

[0037] Please see Figure 8 This utility model provides a technical solution:

[0038] Unlike Embodiment 1, one side surface of the protective plate 29 is provided with a marking observation window 30. There are four marking observation windows 30 arranged in a linear array. The marking observation windows 30 can facilitate the marking and annotation of electrical components at this location, and at the same time, can facilitate the observation of the internal device, thus facilitating the operation and quick use of the device.

[0039] Before using the entire device, after stably installing the internal components of the cabinet, stably install the lifting and adjusting component 5 at the front end of the internal components. Then, use the limit spring 27 to limit the connecting rod 24, controlling the engagement relationship between the cross-shaped locking block 25 and the cross-shaped slot 23. When the entire internal structure needs to be fully exposed, move any protective plate 29, utilizing the connection relationship between multiple gears and multiple rotating plates to facilitate the overall lifting and flipping. When only a part of the area needs to be exposed, move the toggle block 26, compress the limit spring 27, change the position of the connecting rod 24, and change the position of the cross-shaped locking block 25. The snap-fit ​​relationship between the 5 and the cross-shaped slot 23 allows the connecting rod 24 and related components to rotate independently of the circular tube 22, enabling the protective plate 29 to be opened and closed independently. Only the parts that need to be inspected or maintained are exposed, which can significantly reduce the chance of operators coming into contact with other unrelated parts inside the cabinet, simplify the operating environment, and reduce the risk of equipment failure or safety accidents caused by accidental contact. The fully unfolded design also facilitates the use of the equipment, allowing for specific adjustments based on the specific situation. At the same time, the overall design can provide protection and isolation for the interior, improving the overall practicality.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A DC traction substation distribution cabinet device, comprising a cabinet body (1), characterized in that: A closed door (2) is movably connected to one side surface of the cabinet body (1), and heat dissipation holes (3) are opened on both sides of the cabinet body (1). A positioning top plate (4) is fixedly connected to one side surface of the cabinet body (1), and a lifting adjustment component (5) is provided at the lower end of the positioning top plate (4). The lifting and adjusting assembly (5) includes a positioning plate (8), with a limiting groove (9) inside the positioning plate (8). A sliding roller (10) is movably connected inside the positioning plate (8), and a limiting ring (11) is fixedly connected to the side end of the sliding roller (10). The limiting ring (11) and the limiting groove (9) are mutually adapted to each other. The lifting and adjusting assembly (5) can realize its own lifting and self-adjustment between various areas, thereby achieving the effect of protecting various positions inside the electrical box and facilitating its use.

2. The DC traction substation distribution cabinet device according to claim 1, characterized in that: A positioning gear (12) is movably connected to the outer side of the positioning plate (8). A linkage gear (13) is movably connected to the lower end of the positioning gear (12). One side surface of the linkage gear (13) is movably connected to the outer surface of the positioning plate (8). The positioning gear (12) and the linkage gear (13) are meshed with each other. A first lifting gear (15) is provided at the lower end of the linkage gear (13). A second lifting gear (16) is provided at the lower end of the first lifting gear (15). The first lifting gear (15) and the second lifting gear (16) are meshed with each other. One side surface of both the first lifting gear (15) and the second lifting gear (16) is fixedly connected to one side surface of the sliding roller (10).

3. The DC traction substation distribution cabinet device according to claim 2, characterized in that: A second rotating plate (18) is fixedly connected to one side surface of the first lifting gear (15), and a first rotating plate (17) is fixedly connected to the lower end of the linkage gear (13) and the second lifting gear (16). A connecting shaft (19) is movably connected between the first rotating plate (17) and the second rotating plate (18), and a connecting plate (20) is movably connected to the outer side of the first lifting gear (15) and the second lifting gear (16).

4. The DC traction substation distribution cabinet device according to claim 2, characterized in that: The positioning gear (12) and the first lifting gear (15) are both provided with a linkage plate (14) on one side surface. The linkage plate (14) is provided with a single unit adjustment component (21) on one side surface. The single unit adjustment component (21) includes a circular tube (22). The inner side of the circular tube (22) is provided with a cross groove (23). There are four sets of circular tubes (22). Each set of circular tubes (22) has two sets. The two sets of circular tubes (22) are symmetrically distributed. A protective plate (29) is provided between the two sets of circular tubes (22).

5. The DC traction substation distribution cabinet device according to claim 4, characterized in that: A limiting spring (27) is fixedly connected to the inner side of the upper end of the protective plate (29). There are two limiting springs (27) and they are symmetrically distributed. A connecting rod (24) is fixedly connected to the other end of the limiting spring (27). A cross-shaped locking block (25) is fixedly connected to one end of the connecting rod (24). The cross-shaped locking block (25) and the cross-shaped slot (23) are mutually compatible.

6. The DC traction substation distribution cabinet device according to claim 5, characterized in that: A toggle block (26) is fixedly connected to one side surface of the connecting rod (24), and an adjustment groove (28) is provided on one side surface of the protective plate (29). The toggle block (26) is movably disposed inside the adjustment groove (28).

7. The DC traction substation distribution cabinet device according to claim 1, characterized in that: A vertical support (6) is fixedly connected to one side of the inner surface of the cabinet body (1), and a horizontal support (7) is fixedly connected to one side of the vertical support (6).

8. A DC traction substation distribution cabinet device according to claim 6, characterized in that: The protective plate (29) has a marking observation window (30) on one side surface, and there are four marking observation windows (30) arranged in a linear array.