Isolation device for preventing electric shock in maintenance of single drawer equipment for power supply of MNS power distribution cabinet

Abstract

The utility model discloses an anti-electric shock isolation device for maintenance of a single drawer device for power supply of an MNS power distribution cabinet, and the isolation device comprises an insulating baffle A, a movable sliding rail is disposed above the insulating baffle A, the movable sliding rail is connected with the insulating baffle B through a rotating shaft of the insulating baffle B, and the upper part of the insulating baffle A is connected with an insulating telescopic rod A through a 180-degree rotating shaft A; the top of the insulating telescopic rod A is connected with an insulating baffle C; and the bottom of the insulating baffle A is connected with an insulating telescopic rod B through a 180-degree rotating shaft B. According to the utility model, the isolation device is temporarily added to equipment needing to be overhauled behind the MNS switch cabinet, so that the safety of maintenance personnel is ensured.

Description

Technical Field

[0001] The utility model relates to safety protection measures for preventing electric shock during maintenance behind an electrical MNS cabinet, specifically, safety protection for operating personnel during maintenance of a fault behind a cabinet of any MNS circuit, when power is supplied to each circuit of the MNS cabinet. Background Art

[0002] Maintenance of MNS switchgear in distribution rooms often requires working behind the cabinet, which carries high risks and a high probability of electric shock. Existing technology involves deenergizing the upper and lower circuits of the circuit being repaired before performing the repair. However, due to production requirements, most equipment cannot be deenergized. This approach involves placing insulating plates or gloves on the outgoing terminals of the upper and lower circuits. However, these plates or gloves are prone to slipping during maintenance and are difficult to secure, increasing the risk of hidden electric shock. Therefore, a maintenance protection device is needed to ensure safe maintenance. Utility Model Content

[0003] To address the above problems, the present application proposes an isolation device for preventing electric shock during maintenance of a single drawer device powered by an MNS power distribution cabinet, comprising an insulating baffle A. A movable slide rail is provided above the insulating baffle A. The movable slide rail is connected to the insulating baffle B through the insulating baffle B shaft. The insulating baffle A is connected to an insulating telescopic rod A above the insulating baffle through a 180° rotating shaft A. The top of the insulating telescopic rod A is connected to the insulating baffle C; the bottom of the insulating baffle A is connected to the insulating telescopic rod B through a 180° rotating shaft B.

[0004] The insulating baffle B rotating shaft is installed on one side where the insulating baffle B overlaps with the movable slide rail, so as to realize the left and right movement and 180° flipping of the insulating baffle B.

[0005] The number of the insulating telescopic rods A is the same as the number of the 180° rotating shafts A; the number of the insulating telescopic rods B is the same as the number of the 180° rotating shafts B.

[0006] In the working state, the insulating baffle B and the insulating baffle C are both located above the insulating baffle A, and the three are perpendicular to each other.

[0007] The insulating baffle B is detachable.

[0008] The insulating telescopic rod A and the insulating telescopic rod B can be freely extended and retracted; the 180° rotating shaft A drives the insulating telescopic rod A and the insulating baffle C to rotate 180°, and the 180° rotating shaft B drives the insulating telescopic rod B to rotate 180° to achieve folding and storage.

[0009] The beneficial effects of the utility model are as follows:

[0010] When inspecting a single drawer of an MNS cabinet, the maintenance personnel are isolated from the electrical equipment, ensuring the safety of the maintenance personnel and the safety of other MNS cabinet power transmission equipment, and preventing economic losses after safety accidents. In addition, the utility model is easy to use and can be adjusted in height, angle and other conditions according to actual needs. It can be folded after use to save storage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of the utility model;

[0012] Explanation of marks in the figure: 1. Insulating baffle A; 2. Insulating baffle B; 3. Insulating baffle C; 4. Moving slide rail; 5. 180° rotating axis A; 6. Insulating telescopic rod A; 7. Insulating telescopic rod B; 8. 180° rotating axis B; 9. Insulating baffle B rotating axis. DETAILED DESCRIPTION

[0013] The embodiments of the present invention will be described in detail below with reference to the examples. The following examples are only used to illustrate the present invention and should not be considered as limiting the scope of the present invention.

[0014] Example 1

[0015] As shown in the figure, an isolation device for preventing electric shock during maintenance of equipment in a single drawer of an MNS power distribution cabinet includes an insulating baffle A1. A movable rail 4 is provided above insulating baffle A1. The movable rail 4 is connected to insulating baffle B2 via insulating baffle B pivot 9. An insulating telescopic rod A6 is connected to insulating baffle A1 via a 180-degree pivot A5. The top of insulating telescopic rod A6 is connected to insulating baffle C3. The bottom of insulating baffle A1 is connected to insulating telescopic rod B7 via a 180-degree pivot B8.

[0016] The insulating baffle B rotating shaft 9 is installed on one side where the insulating baffle B2 overlaps with the movable slide rail 4, so as to realize the left and right movement and 180° flipping of the insulating baffle B2.

[0017] The number of the insulating telescopic rods A6 is the same as the number of the 180° rotating shafts A5; the number of the insulating telescopic rods B7 is the same as the number of the 180° rotating shafts B8.

[0018] In the working state, the insulating baffle B2 and the insulating baffle C3 are both located above the insulating baffle A1, and the three are perpendicular to each other.

[0019] The insulating baffle B2 is detachable.

[0020] The insulating telescopic rod A6 and the insulating telescopic rod B7 can be freely extended and retracted; the 180° rotating shaft A5 drives the insulating telescopic rod A6 and the insulating baffle C3 to rotate 180°, and the 180° rotating shaft B8 drives the insulating telescopic rod B7 to rotate 180° to achieve folding and storage.

[0021] Example 2

[0022] The use process of this utility model is as follows:

[0023] When troubleshooting a rear-panel fault, extend insulating telescopic rod A6 to the desired length. The 180-degree pivot axis A5 rotates insulating telescopic rod A6 and insulating baffle C3 to a position above and perpendicular to insulating baffle A1. Extend insulating telescopic rod B7 to the desired length. The 180-degree pivot axis B8 rotates insulating telescopic rod B7 to a position below and perpendicular to insulating baffle A1, providing support. At this point, insulating telescopic rod A6 and insulating baffle C3 are above insulating baffle A1, while insulating telescopic rod B7 is below. Install insulating baffle B2 on movable rail 4. Using insulating baffle B pivot axis 9, adjust the angle of insulating baffle B2 to perpendicular to insulating baffle A1. Move insulating baffle B2 to the desired position. Maintenance personnel can complete safe maintenance under the isolation of the baffle.

[0024] After the maintenance is completed, under the action of the insulating baffle B rotating shaft 9, the insulating baffle B2 is folded and laid flat on the insulating baffle A1, or removed separately; the extended insulating telescopic rod A6 is retracted, and at the same time, under the action of the 180° rotating shaft A5, the insulating telescopic rod A6 and the insulating baffle C3 are rotated and folded and laid flat on the insulating baffle A1; the extended insulating telescopic rod B7 is retracted, and under the action of the 180° rotating shaft B8, the insulating telescopic rod B7 is rotated and folded and laid flat on the insulating baffle A1 to complete the folding and storage.

Claims

1. An isolation device for preventing electric shock during maintenance of a single drawer device in an MNS power distribution cabinet, characterized in that: The insulating baffle A (1) comprises an insulating baffle A (1), a movable slide rail (4) is provided above the insulating baffle A (1), the movable slide rail (4) is connected to the insulating baffle B (2) via the insulating baffle B rotation shaft (9), the insulating baffle A (1) is connected to the insulating telescopic rod A (6) via the 180° rotation shaft A (5), the top of the insulating telescopic rod A (6) is connected to the insulating baffle C (3); and the bottom of the insulating baffle A (1) is connected to the insulating telescopic rod B (7) via the 180° rotation shaft B (8).

2. According to claim 1, an isolation device for preventing electric shock when inspecting and repairing a single drawer device in an MNS power distribution cabinet, characterized in that: An insulating baffle B rotating shaft (9) is installed on one side where the insulating baffle B (2) overlaps with the movable slide rail (4), so as to enable the insulating baffle B (2) to move left and right and flip 180 degrees.

3. According to claim 1, an isolation device for preventing electric shock when inspecting and repairing a single drawer device in an MNS power distribution cabinet, characterized in that: The insulating telescopic rods A (6) are the same in number as the 180° rotating shafts A (5); the insulating telescopic rods B (7) are the same in number as the 180° rotating shafts B (8).

4. According to claim 1, an isolation device for preventing electric shock when inspecting and repairing a single drawer device in an MNS power distribution cabinet, characterized in that: In the working state, the insulating baffle B (2) and the insulating baffle C (3) are both located above the insulating baffle A (1), and the three are perpendicular to each other.

5. According to claim 1, an isolation device for preventing electric shock when inspecting and repairing a single drawer device powered by an MNS power distribution cabinet, characterized in that: The insulating baffle B (2) is detachable.

6. According to claim 1, an isolation device for preventing electric shock when inspecting and repairing a single drawer device in an MNS power distribution cabinet, characterized in that: The insulating telescopic rod A (6) and the insulating telescopic rod B (7) can be freely extended and retracted; the 180° rotating shaft A (5) drives the insulating telescopic rod A (6) and the insulating baffle C (3) to rotate 180°, and the 180° rotating shaft B (8) drives the insulating telescopic rod B (7) to rotate 180°, thereby achieving folding and storage.

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