Power distribution cabinet integrated with grounding device
By integrating the grounding device design, the problem of inconvenient grounding wire connection caused by the narrow space inside the distribution cabinet is solved, realizing convenient and efficient grounding wire operation and stable conductive connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI ETAI ELECTRIC CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-26
AI Technical Summary
The limited space inside the distribution cabinet makes grounding wire connection difficult and affects work efficiency.
An integrated grounding device was designed, including a grounding mechanism and an anti-loosening mechanism. By rotating the plate and cooperating with the limiting rod, the grounding wire can be easily connected and loosened.
It improves the convenience and stability of grounding wire connection, ensures the effective conductivity of grounding wire and grounding busbar, and enhances operational efficiency and safety.
Smart Images
Figure CN224418210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a power distribution cabinet with an integrated grounding device. Background Technology
[0002] A distribution cabinet is an electrical device used for centralized distribution and control of electrical energy. It is widely used in industrial, commercial and residential power systems. Its main function is to rationally distribute, protect and control electrical energy to ensure the safe and stable operation of electrical equipment.
[0003] Currently, power distribution cabinets typically connect the grounding wires of equipment by installing grounding bars inside. When equipment leaks current, the combination of the grounding wire and the grounding bar can quickly conduct the fault current to the ground, preventing the current from passing through the human body and thus effectively preventing electric shock accidents.
[0004] Most grounding busbars on the market typically use bolts and O-type crimp terminals to connect grounding wires. However, in practical applications, the equipment inside the distribution cabinet is dense and the space is small, making it extremely inconvenient to connect grounding wires. Moreover, the narrow space makes it difficult to use tools, and the wiring process is time-consuming and laborious, seriously affecting work efficiency. Therefore, a distribution cabinet with an integrated grounding device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a distribution cabinet with an integrated grounding device, which aims to improve the problem mentioned in the prior art that "the small internal space of the distribution cabinet makes it inconvenient to connect the grounding wire."
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a power distribution cabinet with an integrated grounding device, comprising a cabinet body, wherein an opening is provided on the back of the cabinet body, and a grounding mechanism and an anti-loosening mechanism are provided inside the opening;
[0007] The grounding mechanism includes a rotating plate hinged to the inner wall of the opening. A grounding bar is fixedly connected to the side of the rotating plate near the interior of the cabinet. A bolt is threaded onto the inner wall of the grounding bar. A circular grounding plate is fitted onto the outer wall of the bolt. A grounding wire is fixedly connected to the side wall of the circular grounding plate. A limit rod is slidably connected through the inner wall of the rotating plate. A limit hole is opened at the top of the opening. One end of the limit rod fits into the inside of the limit hole, and a spring is fixedly connected to the other end of the limit rod.
[0008] As a further description of the above technical solution:
[0009] The anti-loosening mechanism includes a pressure plate that is slidably connected to the inner wall of the rotating plate, and the pressure plate has through holes that match the bolts.
[0010] As a further description of the above technical solution:
[0011] The pressing plate is a "C"-shaped plate structure, and inclined slots are provided on both the left and right sides of the pressing plate.
[0012] As a further description of the above technical solution:
[0013] A slider is slidably connected to the side of the rotating plate away from the grounding bar.
[0014] As a further description of the above technical solution:
[0015] A guide shaft is fixedly connected to the side wall of the slider, and the outer wall of the guide shaft is in contact with the inner wall of the inclined slot.
[0016] As a further description of the above technical solution:
[0017] A connecting rod is hinged to the side wall of the slider, and the end of the connecting rod away from the slider is hinged to the outer wall of the cabinet body.
[0018] As a further description of the above technical solution:
[0019] The circular grounding plate is a thin plate structure with a central hole, and the bolt passes through the central hole of the circular grounding plate and presses the circular grounding plate against the outer wall of the grounding bar.
[0020] As a further description of the above technical solution:
[0021] The limiting rod is an "H"-shaped rod structure, and the end of the spring away from the limiting rod is fixedly connected to the inner wall of the rotating plate.
[0022] The utility model has the following beneficial effects:
[0023] 1. In the utility model, through the setting of the grounding mechanism, the grounding bar can be turned outwards and removed from the power distribution cabinet, enabling the staff to easily complete the connection of the grounding wire on the back of the cabinet body, completely solving the problem of wiring in the narrow space inside the cabinet, and greatly improving the operation convenience and working efficiency.
[0024] 2. In the utility model, through the setting of the anti-disconnection mechanism, the circular grounding plate can be pressed against the outer wall of the grounding bar after the grounding bar enters the interior of the cabinet body, preventing the bolt from loosening due to the vibration generated during the operation of the equipment inside the cabinet body, and further preventing the connection between the circular grounding plate and the grounding bar from becoming loose. Under the action of the anti-disconnection mechanism, the circular grounding plate can maintain effective contact with the grounding bar, thereby ensuring the conductive effect of the grounding wire, the circular grounding plate and the grounding bar. Description of the Drawings
[0025] Figure 1 It is a schematic diagram of the back structure of the cabinet body of the utility model;
[0026] Figure 2 This is a schematic diagram of the cabinet structure in the outward unfolded state of the rotating plate of this utility model.
[0027] Figure 3 This is a schematic diagram of the overall structure of the rotating plate of this utility model in its unfolded state;
[0028] Figure 4 This is a cross-sectional structural diagram of the rotating plate of this utility model in the closed state;
[0029] Figure 5 This utility model Figure 1 A magnified structural diagram at point A.
[0030] Legend:
[0031] 1. Cabinet; 2. Through opening; 3. Grounding mechanism; 31. Turning plate; 32. Grounding busbar; 33. Bolt; 34. Circular grounding plate; 35. Grounding wire; 36. Limiting rod; 37. Limiting hole; 38. Spring; 4. Anti-loosening mechanism; 41. Pressure plate; 42. Through hole; 43. Inclined groove; 44. Sliding block; 45. Guide shaft; 46. Connecting rod. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1-3 An embodiment of this utility model is provided: a power distribution cabinet with an integrated grounding device, including a cabinet body 1. A through-hole 2 is provided on the back of the cabinet body 1. The grounding wire 35 inside the cabinet body 1 can be led out through the through-hole 2 so as to connect the grounding wire 35 to the grounding busbar 32. A grounding mechanism 3 and an anti-loosening mechanism 4 are provided inside the through-hole 2.
[0034] Reference Figures 2-4, the grounding mechanism 3 includes a rotating plate 31. The rotating plate 31 is hinged to the inner wall of the through-hole 2. On the side of the rotating plate 31 close to the inside of the cabinet body 1, a grounding bar 32 is fixedly connected. By rotating the rotating plate 31, the grounding bar 32 can be moved out of the cabinet body 1 so that the staff can connect the grounding wire 35. A bolt 33 is threadedly connected to the inner wall of the grounding bar 32. A circular grounding plate 34 is sleeved on the outer wall of the bolt 33. The circular grounding plate 34 is a thin plate structure with a central hole. The bolt 33 passes through the central hole of the circular grounding plate 34 and presses the circular grounding plate 34 against the outer wall of the grounding bar 32. Pass the bolt 33 through the central hole of the circular grounding plate 34, and finally thread the bolt 33 onto the grounding bar 32. Through the bolt 33, the circular grounding plate 34 can be pressed tightly on the grounding bar 32, thereby completing the connection between the circular grounding plate 34 and the grounding bar 32. A grounding wire 35 is fixedly connected to the side wall of the circular grounding plate 34. A limiting rod 36 is penetrated and slidably connected to the inner wall of the rotating plate 31. The limiting rod 36 is an "H"-shaped rod structure. A limiting hole 37 is opened at the top of the through-hole 2. The rotating plate 31 can be limited by the cooperation of the limiting rod 36 and the limiting hole 37. One end of the limiting rod 36 fits inside the limiting hole 37. The other end of the limiting rod 36 is fixedly connected to a spring 38. The end of the spring 38 far from the limiting rod 36 is fixedly connected to the inner wall of the rotating plate 31. The elasticity of the spring 38 can drive the limiting rod 36 to slide and reset, and further enable the limiting rod 36 to be stably inserted into the limiting hole 37.
[0035] Refer to Figures 3-5 , the anti-loosening mechanism 4 includes a pressing plate 41. The pressing plate 41 is penetrated and slidably connected to the inner wall of the rotating plate 31. Through the pressing plate 41, the circular grounding plate 34 can be pressed tightly against the outer wall of the grounding bar 32, so that the circular grounding plate 34 and the grounding bar 32 maintain effective contact. A through-hole 42 matching the bolt 33 is opened on the pressing plate 41. The through-hole 42 is used to pass a screwdriver to screw the bolt 33. The pressing plate 41 is a "C"-shaped plate structure. Oblique grooves 43 are opened on both the left and right sides of the pressing plate 41. When the guide shaft 45 moves along the inner wall of the oblique groove 43, it will push the pressing plate 41, causing the pressing plate 41 to slide on the inner wall of the rotating plate 31. A slider 44 is slidably connected to the side of the rotating plate 31 far from the grounding bar 32. A guide shaft 45 is fixedly connected to the side wall of the slider 44. The outer wall of the guide shaft 45 fits along the inner wall of the oblique groove 43. When the slider 44 slides, it will带动 the guide shaft 45 to move along the inner wall of the oblique groove 43. A connecting rod 46 is hinged to the side wall of the slider 44. The end of the connecting rod 46 far from the slider 44 is hinged to the outer wall of the cabinet body 1. When the rotating plate 31 rotates, the connection of the connecting rod 46 can带动 the slider 44 to slide on the side wall of the rotating plate 31.
[0036] Working principle: When it is necessary to connect the grounding wire 35 to the grounding busbar 32, first press down the limiting rod 36 to make it slide down the inner wall of the rotating plate 31 and compress the spring 38. By sliding the limiting rod 36 down, the limiting hole 37 can be moved out, and the limiting of the rotating plate 31 can be released. Then rotate the rotating plate 31 to make it turn outwards from the opening 2, and then the rotating plate 31 can be unfolded towards the back of the cabinet 1. At this time, the grounding busbar 32 on the side wall of the rotating plate 31 will move out from the inside of the cabinet 1 as the rotating plate 31 rotates. Then, the grounding wire 35 inside the cabinet 1 is led out from the opening 2, and then the screw is... Bolt 33 passes through the center hole of the circular grounding piece 34, and finally the bolt 33 is threaded onto the grounding bar 32. The circular grounding piece 34 is pressed onto the grounding bar 32 by the bolt 33. Similarly, the grounding wire 35 connected to the earth is also connected to the grounding bar 32. After the grounding wire 35 is connected, rotate the rotating plate 31 upward so that it enters the interior of the through 2, and insert the limiting rod 36 into the interior of the limiting hole 37. The limiting rod 36 and the limiting hole 37 can limit the rotating plate 31, so that the grounding bar 32 on its side wall can be stably placed inside the cabinet 1.
[0037] When the rotating plate 31 rotates outward from the opening 2, the rotating plate 31 will drive the slider 44 to move synchronously. At this time, the slider 44 will be pushed by the connecting rod 46, causing the slider 44 to slide on the side wall of the rotating plate 31 toward the top of the rotating plate 31. At the same time, the slider 44 will drive the guide shaft 45 to move against the inner wall of the inclined groove 43. At this time, the guide shaft 45 will squeeze the inclined groove 43, thereby pushing the pressure plate 41, causing the pressure plate 41 to slide on the inner wall of the rotating plate 31 and gradually move away from the grounding bar 32. This allows the pressure plate 41 to detach from the circular grounding piece 34. At this time, a screwdriver can be passed through the through hole 42 to tighten the bolt 33, so that the grounding wire 35 can be installed on the grounding bar 32 or the grounding wire 35 can be removed.
[0038] When the rotating plate 31 rotates upward and gradually enters the interior of the through 2, the rotating plate 31 will drive the slider 44 to move synchronously. At this time, the slider 44 will be pulled by the connecting rod 46, causing the slider 44 to slide on the side wall of the rotating plate 31 towards the bottom of the rotating plate 31. At the same time, the slider 44 will drive the guide shaft 45 to move against the inner wall of the inclined groove 43. At this time, the guide shaft 45 will squeeze the inclined groove 43, thereby pushing the pressure plate 41, causing the pressure plate 41 to slide on the inner wall of the rotating plate 31 and gradually approach the grounding bar 32. As the pressure plate 41 approaches, it can press the circular grounding piece 34 tightly against the outer wall of the grounding bar 32, preventing the vibration generated by the operation of the equipment inside the cabinet 1 from causing the bolt 33 to loosen, thereby causing the connection between the circular grounding piece 34 and the grounding bar 32 to loosen. Under the pressing action of the pressure plate 41, the circular grounding piece 34 and the grounding bar 32 can maintain effective contact, thereby ensuring the conductivity of the grounding wire 35, the circular grounding piece 34 and the grounding bar 32.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A distribution cabinet with an integrated grounding device, comprising a cabinet body (1), characterized in that: A through hole (2) is provided on the back surface of the cabinet body (1), and a grounding mechanism (3) and an anti-loosening mechanism (4) are arranged inside the through hole (2); The grounding mechanism (3) includes a rotating plate (31), the rotating plate (31) is hinged to the inner wall of the through hole (2), a grounding bar (32) is fixedly connected to the side of the rotating plate (31) close to the inside of the cabinet body (1), a bolt (33) is threadedly connected to the inner wall of the grounding bar (32), a circular grounding plate (34) is sleeved on the outer wall of the bolt (33), a grounding wire (35) is fixedly connected to the side wall of the circular grounding plate (34), a limiting rod (36) penetrates through and is slidably connected to the inner wall of the rotating plate (31), a limiting hole (37) is provided at the top of the through hole (2), one end of the limiting rod (36) is fitted inside the limiting hole (37), and a spring (38) is fixedly connected to the other end of the limiting rod (36).
2. The distribution cabinet with an integrated grounding device according to claim 1, characterized in that: The anti-loosening mechanism (4) includes a pressing plate (41), the pressing plate (41) penetrates through and is slidably connected to the inner wall of the rotating plate (31), and a through hole (42) matching the bolt (33) is provided on the pressing plate (41).
3. A distribution cabinet with an integrated grounding device according to claim 2, characterized in that: The pressing plate (41) is a "C"-shaped plate structure, and inclined grooves (43) are provided on both the left and right sides of the pressing plate (41).
4. A distribution cabinet with an integrated grounding device according to claim 1, characterized in that: A slider (44) is slidably connected to the side of the rotating plate (31) away from the grounding bar (32).
5. A distribution cabinet with an integrated grounding device according to claim 4, characterized in that: A guiding shaft (45) is fixedly connected to the side wall of the slider (44), and the outer wall of the guiding shaft (45) is fitted to the inner wall of the inclined groove (43).
6. A distribution cabinet with an integrated grounding device according to claim 4, characterized in that: A connecting rod (46) is hinged to the side wall of the slider (44), and one end of the connecting rod (46) away from the slider (44) is hinged to the outer wall of the cabinet body (1).
7. A distribution cabinet with an integrated grounding device according to claim 1, characterized in that: The circular grounding plate (34) is a thin plate structure with a central hole, and the bolt (33) passes through the central hole of the circular grounding plate (34) and presses the circular grounding plate (34) against the outer wall of the grounding bar (32).
8. A distribution cabinet with an integrated grounding device according to claim 1, characterized in that: The limiting rod (36) is an "H"-shaped rod structure, and one end of the spring (38) away from the limiting rod (36) is fixedly connected to the inner wall of the rotating plate (31).