Special anti-electric shock isolation mechanism for power distribution cabinet

Abstract

The utility model discloses a special anti-electric shock isolation mechanism for a power distribution cabinet, which comprises a power distribution cabinet body and a cabinet door rotationally connected to one side of the power distribution cabinet body. The isolation mechanism comprises an arc-shaped rack, a screw rod, a gear, a driving cylinder, a negative pressure cover, a negative pressure fan, an electric heating tube and a folding glass fiber insulation cloth, a collection mechanism is arranged on one side of the isolation mechanism, and a mounting mechanism is arranged on the outer side of the power distribution cabinet body. In the process of pulling the cabinet door to open, the cabinet door drives the arc-shaped rack to move, under the meshing action of the gear, the arc-shaped rack drives the lead screw to rotate, the lead screw drives the negative pressure cover to ascend, and in the ascending process of the negative pressure cover, the folded glass fiber insulation cloth is driven to unfold to insulate and shield electrical components; the interior of the power distribution cabinet is dried and dedusted, water vapor and dust are prevented from entering electronic components, short circuit is prevented, and the safety of maintainers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of electric shock protection isolation mechanism for power distribution cabinets, and in particular to a special electric shock protection isolation mechanism for power distribution cabinets. Background Technology

[0002] Distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes), and are the final-level equipment in the power distribution system. During maintenance, distribution cabinets are prone to electric shock due to internal moisture, which can injure maintenance personnel. In addition, excessive dust inside the distribution cabinet can also cause damage and short circuits to electronic components.

[0003] In the prior art, Chinese utility model patent CN219371689U discloses a device to prevent electric shock to the busbar of a power distribution cabinet. In most power cabinets, the busbar terminal blocks are located at the top. Due to limited space within the cabinet, maintenance personnel often rely on insulated gloves and their own bodies to avoid touching the top busbar when performing maintenance or operations on the energized busbar. This cannot guarantee that the personnel or tools will not come into contact with the top busbar. This product includes a power distribution cabinet with a set of isolation plates connected to guide rails on both sides. The guide rails are right-angled grooves with a rounded transition section in the middle. The isolation plates are connected by connecting rings. A spring is installed between the rearmost isolation plate and the power distribution cabinet. An electromagnetic switch is located on one side inside the cabinet, connected to the middle isolation plate. A push rod is connected to the rearmost isolation plate, which is connected to the cabinet door. A pin is connected to the top of the cabinet, passing through the push rod. This device can prevent maintenance personnel from touching the busbar and getting electric shock during power distribution cabinet testing.

[0004] The problem with the above-mentioned busbar anti-electric shock device for distribution cabinets is that it cannot handle the humid air and dust inside the distribution cabinet during use. Moisture and dust can enter the electronic components and cause short circuits, which can easily lead to electric shock when maintenance personnel operate the device, making it difficult to guarantee the safety of maintenance personnel.

[0005] Therefore, there is an urgent need for a dedicated anti-electric shock isolation mechanism for power distribution cabinets. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a special anti-electric shock isolation mechanism for power distribution cabinets.

[0007] The present invention solves its technical problem through the following technical solution: It includes a distribution cabinet and a cabinet door rotatably connected to one side of the distribution cabinet. An isolation mechanism is provided inside the distribution cabinet. The isolation mechanism includes an arc-shaped rack, which is rotatably connected to one side of the cabinet door. A lead screw is provided inside the distribution cabinet, with a gear at one end of the lead screw meshing with the arc-shaped rack. A drive cylinder is provided outside the lead screw, and a negative pressure shroud is provided on one side of the drive cylinder. A negative pressure fan is provided inside the negative pressure shroud, and multiple electric heating tubes are provided at one end of the negative pressure shroud. Folded fiberglass insulation cloth is provided below the negative pressure shroud. A collection mechanism is provided on one side of the isolation mechanism, and an installation mechanism is provided on the outside of the distribution cabinet.

[0008] As a further embodiment of this utility model: the collection mechanism includes an absorption box, which is welded to the tail of the negative pressure cover. A dustproof net is provided inside the absorption box, and a collection box is provided below the dustproof net. A handle is provided below the collection box.

[0009] As a further embodiment of this utility model: the installation mechanism includes a slot, which is welded to the outside of the distribution cabinet. A slider is provided on the inner wall of the slot, a bolting plate is provided above the slider, and a rubber pad is provided on the outer wall of the bolting plate.

[0010] As a further improvement of this utility model: scrapers are provided at both ends of the negative pressure cover, and the scrapers are fitted with the inner wall of the power distribution cabinet with a clearance.

[0011] As a further improvement of this utility model, the inner wall of the power distribution cabinet is provided with an insulating baffle.

[0012] As a further improvement of this utility model: a limiting slide rod is provided on one side of the power distribution cabinet, and the limiting slide rod is slidably connected to the negative pressure cover.

[0013] As a further improvement of this utility model: a transparent observation window is provided in the middle of the cabinet door, a handle is provided on one side of the cabinet door, and a lock cylinder is provided at one end of the handle.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. The cabinet is equipped with a door. When the door is pulled open, the door moves the arc-shaped rack. Under the meshing of the gears, the arc-shaped rack drives the lead screw to rotate. Under the transmission action of the drive cylinder, the lead screw drives the drive cylinder to rise along the limit slide bar, which in turn drives the negative pressure cover to rise. During the rise of the negative pressure cover, the folded fiberglass insulation cloth unfolds to insulate and shield the electrical components, preventing electric shock to maintenance personnel. It is equipped with an electric heating tube, which works with the negative pressure fan to dry and remove dust from the inside of the distribution cabinet. It treats the humid air and dust inside the distribution cabinet to prevent moisture and dust from entering the electronic components, preventing short circuits and ensuring the safety of maintenance personnel.

[0016] 2. By setting up an absorption box, the dust is absorbed and then falls into the collection box under the action of the dustproof net. By pulling the handle, the dust collected in the collection box can be cleaned, ensuring the convenience of cleaning dust from the power distribution cabinet.

[0017] 3. By incorporating sliders, multiple sliders cooperate to slide along the slots, allowing the distribution cabinet to be installed at different locations on the wall, reducing the difficulty of installation. Rubber pads are also included to cushion the distribution cabinet and ensure the stability of the installation. Attached Figure Description

[0018] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown;

[0019] Figure 2 A side sectional view of the structure according to an embodiment of the present invention is shown;

[0020] Figure 3 A rear cross-sectional view of the structure according to an embodiment of the present invention is shown;

[0021] Figure 4 The present invention provides an embodiment of the present invention. Figure 2 A magnified view of the structure at point A in the middle;

[0022] Figure 5 The present invention provides an embodiment of the present invention. Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0023] Figure 6 The present invention provides an embodiment of the present invention. Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0024] Figure 7 The present invention provides an embodiment of the present invention. Figure 1 A magnified schematic diagram of the structure at point D in the middle.

[0025] Legend:

[0026] 100. Distribution cabinet body; 200. Cabinet door; 101. Arc rack; 102. Lead screw; 103. Gear; 104. Drive cylinder; 105. Negative pressure cover; 106. Negative pressure fan; 107. Electric heating element; 108. Folded fiberglass insulation cloth; 201. Absorption box; 202. Dustproof net; 203. Collection box; 204. Handle; 301. Slot; 302. Slider; 303. Bolted plate; 304. Rubber pad; 110. Scraper; 120. Insulating baffle; 130. Limiting slide bar; 140. Transparent observation window; 150. Handle; 160. Lock cylinder. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] Example 1:

[0031] like Figure 1-6As shown, a special anti-electric shock isolation mechanism for power distribution cabinets includes a power distribution cabinet body 100 and a cabinet door 200 rotatably connected to one side of the power distribution cabinet body 100. An isolation mechanism is provided inside the power distribution cabinet body 100. The isolation mechanism includes an arc-shaped rack 101, which is rotatably connected to one side of the cabinet door 200. A lead screw 102 is rotatably connected inside the power distribution cabinet body 100. One end of the lead screw 102 is fixed with a gear 103 by bolts. The gear 103 meshes with the arc-shaped rack 101. A limit member is slidably connected to the outer side of the arc-shaped rack 101. A drive cylinder 104 is drivenly connected to the outer side of the lead screw 102. A negative pressure cover 105 is bolted to one side of the drive cylinder 104. A negative pressure fan 106 is bolted to the inside of the negative pressure cover 105. Multiple electric heating tubes 107 are bolted to one end of the negative pressure cover 105. A folded fiberglass insulating cloth 108 is bolted to the bottom of the negative pressure cover 105. Scrapers 110 are bolted to both ends of the negative pressure cover 105. The scrapers 110 are clearance-fitted with the inner wall of the distribution cabinet 100. A collection mechanism is provided on one side of the isolation mechanism. An installation mechanism is provided on the outer side of the distribution cabinet 100. An insulating baffle 120 is bolted to the inner wall of the distribution cabinet 100.

[0032] In this embodiment, a cabinet door 200 is provided. When the cabinet door 200 is pulled open, the cabinet door 200 drives the arc-shaped rack 101 to move. Under the meshing action of the gear 103, the arc-shaped rack 101 drives the lead screw 102 to rotate. Under the transmission action of the drive cylinder 104, the lead screw 102 drives the drive cylinder 104 to rise along the limit slide bar 130, which in turn drives the negative pressure cover 105 to rise. During the rise of the negative pressure cover 105, the folded glass fiber insulating cloth 108 is unfolded to insulate and shield the electrical components, preventing electric shock during maintenance personnel operation. An electric heating tube 107 is provided. The electric heating tube 107 cooperates with the negative pressure fan 106 to dry and remove dust from the inside of the distribution cabinet, treating the humid air and dust inside the distribution cabinet, preventing moisture and dust from entering the electronic components, preventing short circuits, and ensuring the safety of maintenance personnel.

[0033] Example 2:

[0034] like Figure 3-5 As shown, a special anti-electric shock isolation mechanism for a power distribution cabinet is disclosed. The collection mechanism includes an absorption box 201, which is welded to the tail of a negative pressure cover 105. A dustproof net 202 is fixed inside the absorption box 201 by bolts. A collection box 203 is slidably connected below the dustproof net 202. A handle 204 is welded below the collection box 203. A limit slide rod 130 is fixed to one side of the power distribution cabinet body 100 by bolts. The limit slide rod 130 is slidably connected to the negative pressure cover 105.

[0035] In this embodiment, an absorption box 201 is provided to absorb dust. Under the action of the dustproof net 202, the dust falls into the collection box 203. By pulling the handle 204, the dust collected in the collection box 203 can be cleaned, ensuring the convenience of cleaning dust from the power distribution cabinet.

[0036] Example 3:

[0037] like Figure 1-7 As shown, a special anti-electric shock isolation mechanism for power distribution cabinets includes a slot 301, which is welded to the outside of the power distribution cabinet body 100. A slider 302 is slidably connected to the inner wall of the slot 301. A bolted plate 303 is fixed above the slider 302 by bolts. A rubber pad 304 is fixed to the outer wall of the bolted plate 303 by bolts. A transparent observation window 140 is fixed to the middle of the cabinet door 200 by bolts. A handle 150 is rotatably connected to one side of the cabinet door 200. A lock cylinder 160 is fixed to one end of the handle 150 by bolts.

[0038] In this embodiment, by providing sliders 302, multiple sliders 302 cooperate with each other to slide along the slot 301, so that the power distribution cabinet can be installed at different positions on the wall, reducing the installation difficulty of the power distribution cabinet. Rubber pads 304 are provided to buffer the power distribution cabinet and ensure the stability of the power distribution cabinet installation.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special anti-electric shock isolation mechanism for power distribution cabinet, characterized in that, The utility model provides a power distribution cabinet, including power distribution cabinet cabinet (100) and the cabinet door (200) of rotation connection in one side of power distribution cabinet cabinet (100), the inside of power distribution cabinet cabinet (100) is provided with isolation mechanism, the isolation mechanism includes arc gear rack (101), arc gear rack (101) rotation connection in one side of cabinet door (200), the inside of power distribution cabinet cabinet (100) is provided with lead screw (102), one end of lead screw (102) is provided with gear (103), gear (103) is engaged with arc gear rack (101), the outside of lead screw (102) is provided with drive cylinder (104), one side of drive cylinder (104) is provided with negative pressure cover (105), the inside of negative pressure cover (105) is provided with negative pressure fan (106), one end of negative pressure cover (105) is provided with a plurality of electric heating tube (107), the below of negative pressure cover (105) is provided with folding glass fiber insulating cloth (108), one side of isolation mechanism is provided with collection mechanism, the outside of power distribution cabinet cabinet (100) is provided with mounting mechanism.

2. The anti-electric shock isolation mechanism for power distribution cabinet according to claim 1, characterized in that, The collection mechanism includes an absorption box (201) welded to the tail of the negative pressure cover (105), the inside of the absorption box (201) is provided with a dust screen (202), the dust screen (202) is provided below the collection box (203), the collection box (203) is provided below the handle (204).

3. The anti-electric shock isolation mechanism for power distribution cabinet according to claim 2, characterized in that, The mounting mechanism includes a clamping groove (301) welded to the outside of the power distribution cabinet cabinet (100), the inner wall of the clamping groove (301) is provided with a sliding block (302), the sliding block (302) is provided above the bolted plate (303), the outer wall of the bolted plate (303) is provided with a rubber pad (304).

4. The anti-electric shock isolation mechanism for power distribution cabinet according to claim 1, characterized in that, Both ends of the negative pressure cover (105) are provided with a scraper (110) in gap cooperation with the inner wall of the power distribution cabinet cabinet (100).

5. The anti-electric shock isolation mechanism for power distribution cabinet according to claim 1, characterized in that, The inner wall of the power distribution cabinet cabinet (100) is provided with an insulating baffle (120).

6. The anti-electric shock isolation mechanism for power distribution cabinet according to claim 1, characterized in that, One side of the power distribution cabinet cabinet (100) is provided with a limiting slide rod (130) in sliding connection with the negative pressure cover (105).

7. The anti-electric shock isolation mechanism for power distribution cabinet according to claim 1, characterized in that, The middle position of the cabinet door (200) is provided with a transparent observation window (140), one side of the cabinet door (200) is provided with a handle (150), one end of the handle (150) is provided with a lock cylinder (160).

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