Ring main unit with anti-arcing structure

Abstract

The utility model discloses a ring main unit with an anti-arcing structure, which relates to the technical field of ring main units and comprises a cabinet body, two connecting blocks are fixedly arranged on the front side of the cabinet body, an L-shaped cabinet door is rotatably arranged on the opposite sides of the two connecting blocks, and a fixing plate is movably inserted into the left side of a vertical plate of the L-shaped cabinet door. And a limiting piece is movably inserted into the front side of a transverse plate of the L-shaped cabinet door. Two C-shaped rods are closed towards the middle, a second compression spring is compressed, two vertical rods on the rear sides of the C-shaped rods are moved out of a middle-character-shaped groove, fixing of a pull frame is relieved, two abutting blocks are driven by the pull frame to move forwards, a first compression spring is compressed, the pull frame is moved out of the middle-character-shaped groove, fixing of an L-shaped strip is relieved, and the L-shaped strip is stretched leftwards. And the horizontal strip of the L-shaped strip is moved out of the horizontal groove of the T-shaped groove, and the fixation of the cabinet body and the L-shaped cabinet door is released, so that the cabinet body can be quickly opened to be quickly overhauled.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, and in particular to a ring main unit with an anti-flame arc structure. Background Technology

[0002] With the continuous development of power distribution networks, ring main units have become increasingly widely used and have become an important component of power distribution networks due to their small size, expandability, maintenance-free operation, complete solutions, and aesthetic appearance.

[0003] In the current market, the door panels and frames of ring main units are directly connected and fixed with clamp bolts or hex bolts. When installing or removing the door panels, special tools are required to remove the bolts before the door panels can be moved out. Since there are many ring main units, manual operation is cumbersome, which leads to slow maintenance efficiency of the ring main units. Summary of the Invention

[0004] To address the issue mentioned above where special tools are needed to remove bolts before the door panel can be moved during installation or disassembly, and where manual operation is cumbersome due to the large number of ring main units, resulting in slow maintenance efficiency, this utility model provides a fire-resistant arc-resistant ring main unit.

[0005] This utility model provides a fire-resistant arc-resistant ring main unit, which adopts the following technical solution:

[0006] A fire-resistant arc-resistant ring main unit includes a cabinet body. Two connecting blocks are fixedly installed on the front side of the cabinet body. An L-shaped cabinet door is rotatably installed on the opposite side of the two connecting blocks. A fixing plate is movably inserted into the left side of the vertical plate of the L-shaped cabinet door.

[0007] The front side of the horizontal plate of the L-shaped cabinet door is movably connected to a limiting component, and two moving slots are opened on the rear side of the horizontal plate of the L-shaped cabinet door. A T-shaped slot is opened on the left side of the cabinet body.

[0008] The above technical solution facilitates the quick release of the cabinet from the L-shaped cabinet door, allowing for rapid opening and maintenance. It also provides insulation by tightly fitting the sealing sheet inside the cabinet and grounding it with a rubber plate, thereby reducing the possibility of electric arcing inside the cabinet.

[0009] Optionally, in the above-mentioned fire-resistant arc-resistant ring main unit, the limiting component includes a pull frame, which is movably inserted into the front side of the horizontal plate of the L-shaped cabinet door. Abutment blocks are fixedly provided on both the left and right sides of the pull frame. The side of the abutment block slides in cooperation with the inside of the moving groove. A first compression spring is fixedly provided on the side of the moving groove opposite to the abutment block.

[0010] The above technical solution facilitates the movement of the pull frame and the contact block forward, compressing the first compression spring. This allows the pull frame to move out of the center groove, quickly releasing the L-shaped strip and stretching it to the left, thus quickly opening the L-shaped cabinet door.

[0011] Optionally, in the above-mentioned fire-resistant arc-resistant ring main unit, C-shaped rods are movably inserted into both the upper and lower sides of the inner wall of the pull frame, and a second compression spring is fixedly installed on one side of the two crossbars of the C-shaped rod.

[0012] The above technical solution allows for the quick release of the fixed state of the pull frame by simultaneously moving the two C-shaped rods towards the center.

[0013] Optionally, in the above-mentioned fire-resistant arc-resistant ring main unit, the fixing plate includes an L-shaped strip, the horizontal plate of the L-shaped strip passes through the vertical plate of the L-shaped cabinet door and is slidably disposed inside the horizontal groove of the T-shaped groove, and a tension spring is fixedly connected to the side of the vertical plate of the L-shaped strip, one end of the tension spring being fixedly engaged with the side of the vertical plate of the L-shaped cabinet door.

[0014] The above technical solution allows for the use of L-shaped strips to limit the L-shaped cabinet door, and by moving the L-shaped strips to the left, the cabinet can be quickly released from its fixed state.

[0015] Optionally, in the above-mentioned fire-resistant arc-resistant ring main unit, the interior of the horizontal plate of the L-shaped strip is provided with a Chinese character-shaped groove, the interior of the vertical groove of the Chinese character-shaped groove is slidably engaged with the interior of the C-shaped rod, and the interior of the horizontal groove of the Chinese character-shaped groove is slidably engaged with the side of the pull frame.

[0016] The above technical solution facilitates the movement of the pull frame into the horizontal groove of the T-shaped groove, making it easy to limit and fix the L-shaped strip and prevent it from moving.

[0017] Optionally, in the above-mentioned fire-resistant arc-resistant ring main unit, a sealing sheet is fixedly installed on the rear side of the vertical plate of the L-shaped cabinet door, and the sealing sheet is made of hard rubber.

[0018] The above technical solution facilitates insulation through a hard rubber sealing sheet, ensuring the airtightness of the ring main unit.

[0019] Optionally, in the above-mentioned fire-resistant arc-resistant ring main unit, a number of heat dissipation slots are provided on the rear side of the unit, and a rubber plate is fixedly installed at the bottom of the unit.

[0020] The above technical solution facilitates grounding by using rubber sheets with good insulation properties, while maintaining the stability of the cabinet.

[0021] In summary, this utility model has at least one of the following beneficial effects:

[0022] By closing the two C-shaped rods in the middle and compressing the second compression spring, the two vertical rods on the back of the C-shaped rods are moved out of the T-shaped groove, releasing the fixation of the pull frame. The pull frame drives the two abutment blocks forward, compressing the first compression spring and moving the pull frame out of the T-shaped groove, releasing the fixation of the L-shaped strip. The L-shaped strip is then stretched to the left, causing the horizontal bar of the L-shaped strip to move out of the horizontal groove of the T-shaped groove, releasing the fixation between the cabinet and the L-shaped cabinet door. This allows the cabinet to be quickly opened for inspection and maintenance.

[0023] Rotate the L-shaped cabinet door to the front of the cabinet and move the horizontal bar of the L-shaped strip into the T-shaped groove. Then move the rear side of the pull frame into the horizontal groove of the T-shaped groove, and move the two rear vertical bars of the two C-shaped rods into the vertical grooves of the T-shaped groove. Quickly fix the L-shaped cabinet door to the front of the cabinet. At the same time, the sealing sheet is tightly attached to the inside of the cabinet for insulation, and grounded through the rubber plate, thereby reducing the possibility of electric arc inside the cabinet. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a three-dimensional, open view of the cabinet body of this utility model;

[0026] Figure 3 This is a partial three-dimensional structural unfolded view of the cabinet body of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the L-shaped cabinet door of this utility model.

[0028] In the diagram: 1. Cabinet body; 2. Connecting block; 3. L-shaped cabinet door; 301. Sealing sheet; 4. Fixing plate; 401. L-shaped strip; 402. T-shaped groove; 403. Tension spring; 5. Limiting component; 501. Pull frame; 502. Abutting block; 503. First compression spring; 504. C-shaped rod; 505. Second compression spring; 6. Moving groove; 7. T-shaped groove. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0030] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a fire-resistant arc structure ring network cabinet, including a cabinet body 1. Two connecting blocks 2 are fixedly installed on the front side of the cabinet body 1. An L-shaped cabinet door 3 is rotatably installed on the opposite side of the two connecting blocks 2. A fixing plate 4 is movably inserted into the left side of the vertical plate of the L-shaped cabinet door 3.

[0031] The front side of the horizontal plate of the L-shaped cabinet door 3 is connected to a limiting piece 5, and two moving grooves 6 are opened on the rear side of the horizontal plate of the L-shaped cabinet door 3. A T-shaped groove 7 is opened on the left side of the cabinet body 1.

[0032] Working principle: When using this fire-resistant arc-resistant ring main unit, by simultaneously closing the two C-shaped rods 504 towards the middle, the second compression spring 505 is compressed, causing the two vertical rods on the rear side of the C-shaped rods 504 to move out of the interior of the U-shaped groove 402, thereby releasing the fixation of the pull frame 501. Then, the pull frame 501 drives the two abutment blocks 502 to move forward, compressing the first compression spring 503, causing the pull frame 501 to move out of the U-shaped groove 402, releasing the fixation of the L-shaped strip 401. Then, the L-shaped strip 401 is stretched to the left, causing the horizontal bar of the L-shaped strip 401 to move out of the interior of the horizontal groove of the T-shaped groove 7, releasing the fixation between the cabinet body 1 and the L-shaped cabinet door 3, so that the cabinet body 1 can be quickly opened for maintenance.

[0033] By deflecting the L-shaped cabinet door 3 to the front of the cabinet 1, moving the horizontal bar of the L-shaped strip 401 into the interior of the T-shaped groove 7, then moving the rear side of the pull frame 501 into the interior of the horizontal groove of the T-shaped groove 402, and moving the two rear vertical bars of the two C-shaped rods 504 into the interior of the vertical groove of the T-shaped groove 402, the L-shaped cabinet door 3 is quickly fixed to the front of the cabinet 1. At the same time, the sealing sheet 301 is tightly attached to the front of the cabinet 1 for insulation, and grounded through the rubber plate, thereby reducing the possibility of electric arc inside the cabinet 1.

[0034] It should be noted that the limiting component 5 includes a pull frame 501, which is movably inserted into the front side of the horizontal plate of the L-shaped cabinet door 3. Abutment blocks 502 are fixedly provided on both the left and right sides of the pull frame 501. The side of the abutment block 502 slides in cooperation with the inside of the moving groove 6. A first compression spring 503 is fixedly provided on the side of the moving groove 6 opposite to the abutment block 502.

[0035] By adopting the above technical solution, the pull frame 501 drives the abutment block 502 to move forward, compressing the first compression spring 503, which allows the pull frame 501 to move out of the inside of the Chinese-shaped groove 402, thereby quickly releasing the fixation of the L-shaped strip 401 and stretching the L-shaped strip 401 to the left, which can quickly open the L-shaped cabinet door 3.

[0036] It should be noted that C-shaped rods 504 are movably inserted into both the upper and lower sides of the inner wall of the pull frame 501, and a second compression spring 505 is fixedly installed on the opposite side of the two crossbars of the C-shaped rod 504.

[0037] By adopting the above technical solution, the fixed state of the pull frame 501 can be quickly released by moving the two C-shaped rods 504 to the middle at the same time.

[0038] It should be noted that the fixing plate 4 includes an L-shaped strip 401. The horizontal plate of the L-shaped strip 401 passes through the vertical plate of the L-shaped cabinet door 3 and is slidably disposed inside the horizontal groove of the T-shaped groove 7. A tension spring 403 is fixedly connected to the side of the vertical plate of the L-shaped strip 401, and one end of the tension spring 403 is fixedly engaged with the side of the vertical plate of the L-shaped cabinet door 3.

[0039] Using the above technical solution, the L-shaped strip 401 can limit the L-shaped cabinet door 3, and by moving the L-shaped strip 401 to the left, the fixed state of the cabinet 1 can be quickly released.

[0040] It should be noted that the horizontal plate of the L-shaped strip 401 has a Chinese character-shaped groove 402 inside. The vertical groove of the Chinese character-shaped groove 402 slides in conjunction with the inside of the C-shaped rod 504, and the horizontal groove of the Chinese character-shaped groove 402 slides in conjunction with the side of the pull frame 501.

[0041] By adopting the above technical solution, after the pull frame 501 is moved into the interior of the horizontal groove of the T-shaped groove 402, it is convenient to limit and fix the L-shaped strip 401 to prevent the L-shaped strip 401 from moving.

[0042] It should be noted that a sealing sheet 301 is fixedly installed on the back side of the vertical panel of the L-shaped cabinet door 3, and the sealing sheet 301 is made of hard rubber.

[0043] By adopting the above technical solution, the sealing sheet 301 made of hard rubber material can provide insulation and ensure the sealing performance of the ring main unit.

[0044] It should be noted that several ventilation slots are provided on the rear side of cabinet 1, and a rubber plate is fixedly installed at the bottom of cabinet 1.

[0045] By adopting the above technical solution, the rubber sheet has good insulation properties and can be grounded while maintaining the stability of cabinet 1.

[0046] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A fire-resistant arc-resistant ring main unit, comprising a cabinet body (1), characterized in that: Two connecting blocks (2) are fixedly installed on the front side of the cabinet (1). An L-shaped cabinet door (3) is rotatably installed on the opposite side of the two connecting blocks (2). A fixing plate (4) is movably inserted into the left side of the vertical plate of the L-shaped cabinet door (3). The front side of the horizontal plate of the L-shaped cabinet door (3) is movably connected to a limiting piece (5), and two moving slots (6) are opened on the rear side of the horizontal plate of the L-shaped cabinet door (3). A T-shaped slot (7) is opened on the left side of the cabinet body (1).

2. The fire-resistant arc-resistant ring main unit according to claim 1, characterized in that: The limiting component (5) includes a pull frame (501), which is movably inserted into the front side of the horizontal plate of the L-shaped cabinet door (3). Abutment blocks (502) are fixedly provided on both the left and right sides of the pull frame (501). The side of the abutment block (502) slides in cooperation with the inside of the moving groove (6). A first compression spring (503) is fixedly provided on the side of the moving groove (6) opposite to the abutment block (502).

3. The fire-resistant arc-resistant ring main unit according to claim 2, characterized in that: C-shaped rods (504) are movably inserted into both the upper and lower sides of the inner wall of the pull frame (501), and a second compression spring (505) is fixedly installed on one side of the two crossbars of the C-shaped rod (504).

4. The fire-resistant arc-resistant ring main unit according to claim 1, characterized in that: The fixing plate (4) includes an L-shaped strip (401). The horizontal plate of the L-shaped strip (401) passes through the vertical plate of the L-shaped cabinet door (3) and is slidably disposed inside the horizontal groove of the T-shaped groove (7). A tension spring (403) is fixedly connected to the side of the vertical plate of the L-shaped strip (401). One end of the tension spring (403) is fixedly engaged with the side of the vertical plate of the L-shaped cabinet door (3).

5. The anti-arc structure ring main unit according to claim 4, characterized in that: The horizontal plate of the L-shaped strip (401) has a Chinese character-shaped groove (402) inside. The vertical groove of the Chinese character-shaped groove (402) slides in conjunction with the interior of the C-shaped rod (504), and the horizontal groove of the Chinese character-shaped groove (402) slides in conjunction with the side of the pull frame (501).

6. The fire-resistant arc-resistant ring main unit according to claim 1, characterized in that: A sealing sheet (301) is fixedly installed on the rear side of the vertical plate of the L-shaped cabinet door (3), and the sealing sheet (301) is made of hard rubber.

7. The fire-resistant arc-resistant ring main unit according to claim 1, characterized in that: The cabinet (1) has several heat dissipation slots on the rear side, and a rubber plate is fixedly installed at the bottom of the cabinet (1).

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