Grounding device of power distribution cabinet

By designing a fan-shaped clamping structure in the grounding device, the problem of inconvenient installation and removal of grounding wires in power distribution cabinets was solved, enabling rapid connection and disassembly and improving operational efficiency.

CN223785536UActive Publication Date: 2026-01-09TIANJIN LNER ELECTRIC
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Patent Information

Application Number
CN202520243646.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-01-09
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

The installation and removal of grounding wires in existing power distribution cabinets are quite troublesome, especially when multiple grounding wires need to be connected, and the use of screw connections is inefficient.

Method used

A grounding device is designed, including components such as a fixing plate, a bearing plate, a connecting plate, a grounding component, and a clamping component. The fan-shaped structure of the clamping component enables quick connection and disconnection of the grounding wire, and the operation is carried out by the cooperation of the clamping block and the lever.

Benefits of technology

It enables quick connection and disconnection of grounding wires, improves operational efficiency, and simplifies the installation process of multiple grounding wires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of power distribution cabinets, in particular to a grounding device of a power distribution cabinet. The grounding device of the power distribution cabinet comprises a power distribution cabinet body, a cabinet door and a grounding unit, the cabinet door is rotationally connected with the power distribution cabinet body; the grounding unit is located in the power distribution cabinet body and comprises a fixing plate, a bearing plate, a connecting plate, a grounding connecting wire, a grounding piece and a clamping piece; the fixing plates are connected to two opposite inner wall surfaces of the power distribution cabinet body; the two ends of the bearing plate are located on the fixing plates correspondingly. The connecting plate is located at one end of the bearing plate; the multiple clamping pieces are connected with the bearing plate, and each clamping piece comprises a shell, a threaded rod, a first clamping block, a second clamping block, a rotating shaft and a poke rod. According to the utility model, through cooperation of the first clamping block and the second clamping block, connection of a grounding wire is realized, and connection and disassembly are convenient.
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Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a grounding device for a power distribution cabinet. Background Technology

[0002] A distribution cabinet is a general term for a motor control center. Distribution cabinets are used in situations where the load is relatively dispersed and there are fewer circuits; motor control centers are used in situations where the load is concentrated and there are more circuits.

[0003] Grounding protection is a common method used in distribution cabinets to prevent electric shock from leakage. Typically, a busbar is installed on the distribution cabinet, and grounding wires are connected to the busbar using screws. However, using screw connections makes installation and removal cumbersome, especially when multiple grounding wires need to be connected. Summary of the Invention

[0004] A grounding device for a power distribution cabinet includes: a cabinet body, a cabinet door, and a grounding unit;

[0005] The cabinet door is rotatably connected to the main body of the power distribution cabinet;

[0006] The grounding unit is located inside the power distribution cabinet and includes: a fixing plate, a bearing plate, a connecting plate, a grounding connection wire, a grounding component, and a clamping component;

[0007] The fixing plate is connected to two opposite inner wall surfaces of the power distribution cabinet body;

[0008] Both ends of the support plate are located on the fixing plate;

[0009] The connecting plate is located at one end of the bearing plate;

[0010] The connecting plate is provided with a third through hole;

[0011] The grounding component is buried in the ground, and a grounding connection wire is connected between the grounding component and the connecting plate.

[0012] The fixing plate is provided with a first through hole, and the bearing plate is provided with multiple second through holes. A screw and a nut are used to pass through the first through hole, the second through hole and the third through hole.

[0013] The clamping components are multiple and are all connected to the bearing plate. They include: a housing, a threaded rod, a first clamping block, a second clamping block, a rotating shaft, and a toggle rod.

[0014] The front of the housing is open, and a through groove is provided at its top; a threaded rod is connected to the bottom of the housing, the threaded rod passes through a second through hole, and a nut is used to engage with the threaded rod.

[0015] The first clamping block has a fan-shaped structure and is fixedly connected to the bottom surface inside the outer shell. Multiple parallel lines are provided on the arc-shaped surface of the first clamping block.

[0016] A fourth through hole is provided on each of the two opposite walls of the outer casing;

[0017] The second clamping block is located above the first clamping block and has a fan-shaped structure with multiple parallel lines on its arc surface; the top of the second clamping block has a protruding post with a fifth through hole; a lever extends from the middle of the protruding post.

[0018] The rotating shaft passes through the fifth through hole, and both ends of the rotating shaft are engaged with the fourth through hole.

[0019] Specifically, a baffle is connected to the support plate.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model achieves the connection of the grounding wire through the cooperation of the first clamping block and the second clamping block, and the connection and disassembly are relatively convenient. Attached Figure Description

[0022] Figure 1 This is an overall view of the present invention.

[0023] Figure 2 This is an internal view of the present invention.

[0024] Figure 3 This is a view of the fixing plate of this utility model.

[0025] Figure 4 This is a view of the grounding component of this utility model.

[0026] Figure 5 This is a view of the retaining frame of this utility model.

[0027] Figure 6 This is a view of the outer casing of this utility model.

[0028] Figure 7 This is a view of the threaded rod of this utility model.

[0029] Figure 8 This is a view of the second clamping block of this utility model.

[0030] Figure 9 This is a view of the first clamping block of this utility model. Detailed Implementation

[0031] Preferred embodiments of this utility model will be described in detail with reference to the accompanying drawings, which will facilitate the implementation of these embodiments by those skilled in the art. However, this utility model can be implemented in various different forms, and therefore is not limited to the embodiments described below. Furthermore, for clarity, components not connected to this utility model will be omitted from the drawings.

[0032] A grounding device for a power distribution cabinet includes: a cabinet body 1, a cabinet door 2, and a grounding unit;

[0033] like Figure 1 As shown, the cabinet door 2 is rotatably connected to the power distribution cabinet body 1;

[0034] The grounding unit is located inside the power distribution cabinet body 1 and includes: a fixing plate 31, a bearing plate 32, a connecting plate 33, a grounding connection wire 34, a grounding component 35, and a clamping component;

[0035] like Figure 3 As shown, the fixing plate 31 is connected to two opposite inner wall surfaces of the power distribution cabinet body 1;

[0036] The two ends of the bearing plate 32 are respectively located on the fixing plate 31;

[0037] The connecting plate 33 is located at one end of the bearing plate 32;

[0038] like Figure 4 As shown, the connecting plate 33 is provided with a third through hole 331;

[0039] The grounding component 35 is buried in the ground, and a grounding connection wire 34 is connected between the grounding component 35 and the connecting plate 33. The grounding connection wire 34 passes through the rear wall of the power distribution cabinet body 1.

[0040] like Figure 5 As shown, the fixing plate 31 is provided with a first through hole 311, and the bearing plate 32 is provided with a plurality of second through holes 321. The fixing plate 31, the bearing plate 32, and the connecting plate 33 are connected by using screws and nuts to pass through the first through holes 311, the second through holes 321 and the third through holes 331.

[0041] The clamping components are multiple and are all connected to the bearing plate 32. They include: a housing 361, a threaded rod 362, a first clamping block 363, a second clamping block 364, a rotating shaft 365, and a toggle rod 366.

[0042] like Figure 6As shown, the front of the outer casing 361 is open, and a through groove 3612 is provided on its top; a threaded rod 362 is connected to the bottom of the outer casing 361, the threaded rod 362 passes through the second through hole 321, and a nut is used to cooperate with the threaded rod 362 to fix the outer casing 361.

[0043] The first clamping block 363 has a fan-shaped structure and is fixedly connected to the bottom surface inside the outer shell 361. Multiple parallel lines are provided on the arc-shaped surface of the first clamping block 363.

[0044] like Figure 7 As shown, a fourth through hole 3611 is provided on each of the two opposite walls of the outer casing 361;

[0045] like Figure 8 As shown, the second clamping block 364 is located above the first clamping block 363 and has a fan-shaped structure with multiple parallel lines on its arc surface; the top of the second clamping block 364 has a protruding post 3641, and a fifth through hole 36411 is provided on the protruding post 3641; a toggle rod 366 extends from the middle of the protruding post 3641.

[0046] like Figure 9 As shown, the rotating shaft 365 passes through the fifth through hole 36411, and both ends of the rotating shaft 365 are engaged with the fourth through hole 3611.

[0047] When it is necessary to connect the grounding wire of the power distribution cabinet, such as Figure 6 As shown, insert the end of the grounding wire into the space between the first clamping block 363 and the second clamping block 364, and rotate the lever 366, as shown. Figure 9 As shown, the second clamping block 364 presses the end of the grounding wire firmly, thus completing the connection. To disconnect the grounding wire, simply perform the reverse operation.

[0048] Furthermore, such as Figure 3 As shown, a baffle 37 is connected to the support plate 32 to prevent workers from accidentally touching the clamping parts.

[0049] In the description of this technical solution, it should be specifically noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" used herein should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model creation based on the specific circumstances.

Claims

1. A grounding device for a power distribution cabinet, comprising: The main body of the distribution cabinet (1), the cabinet door (2), and the grounding unit; Its characteristic is that the cabinet door (2) is rotatably connected to the main body (1) of the power distribution cabinet; The grounding unit is located inside the main body (1) of the distribution cabinet and includes: a fixing plate (31), a bearing plate (32), a connecting plate (33), a grounding connection wire (34), a grounding component (35), and a clamping component; The fixing plate (31) is connected to two opposite inner wall surfaces of the power distribution cabinet body (1); The two ends of the bearing plate (32) are respectively located on the fixing plate (31); The connecting plate (33) is located at one end of the bearing plate (32); The connecting plate (33) is provided with a third through hole (331); The grounding component (35) is buried in the ground, and a grounding connection wire (34) is connected between the grounding component (35) and the connecting plate (33). The fixing plate (31) is provided with a first through hole (311), and the bearing plate (32) is provided with a plurality of second through holes (321). A screw and a nut are used to pass through the first through hole (311), the second through hole (321) and the third through hole (331). There are multiple clamping components, all of which are connected to the bearing plate (32). They include: a housing (361), a threaded rod (362), a first clamping block (363), a second clamping block (364), a rotating shaft (365), and a toggle rod (366). The front of the outer casing (361) is open, and a through groove (3612) is provided on its top; a threaded rod (362) is connected to the bottom of the outer casing (361), and the threaded rod (362) passes through the second through hole (321), and a nut is used to engage with the threaded rod (362); The first clamping block (363) has a fan-shaped structure and is fixedly connected to the bottom surface inside the outer shell (361). Multiple parallel lines are provided on the arc-shaped surface of the first clamping block (363). The outer casing (361) has a fourth through hole (3611) on each of its two opposite walls. The second clamping block (364) is located above the first clamping block (363) and has a fan-shaped structure with multiple parallel lines on its arc surface; the top of the second clamping block (364) has a protruding post (3641) and a fifth through hole (36411) is provided on the protruding post (3641); a toggle rod (366) extends from the middle of the protruding post (3641). The rotating shaft (365) passes through the fifth through hole (36411), and both ends of the rotating shaft (365) are engaged with the fourth through hole (3611).

2. The grounding device for a power distribution cabinet according to claim 1, characterized in that: A baffle (37) is connected to the support plate (32).