Electric shock prevention safety isolation distribution box

Abstract

This utility model relates to an electric shock protection safety isolation distribution box, belonging to the technical field of distribution boxes. The electric shock protection safety isolation distribution box includes a distribution box, an air switch installed on the inner wall of the distribution box, an isolation transformer installed on the inner wall of the distribution box, a fixing component installed at the bottom of the isolation transformer, and a branch sealing component installed on the inner wall of the distribution box. This utility model allows adjustment of the distance between two L-shaped brackets by unscrewing a screw on one side and pulling a slider. The slider's sliding distance is adjusted according to the bottom hole position of the replacement isolation transformer. The screws are then tightened to fix the L-shaped brackets to the inner wall of the distribution box. Finally, the new isolation transformer is installed in the corresponding square slot. This improves versatility and flexibility, eliminating the need for custom-made enclosures for different transformers, reducing equipment replacement or upgrade costs, adapting to different power and model requirements, and broadening the applicable scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of distribution box technology, specifically relating to a safety isolation distribution box for preventing electric shock. Background Technology

[0002] According to electrical wiring requirements, the distribution box assembles switching equipment, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or panel to form a complete low-voltage power distribution device. During normal operation, the circuit can be connected or disconnected manually or automatically. Once a fault or abnormal operation occurs, the protective electrical appliances will immediately cut off the circuit or issue an alarm signal. In addition, the measuring instruments can display various parameters in real time and adjust certain electrical parameters.

[0003] For example, in the Chinese utility model announcement CN223156548U, entitled "A Modular Assembled Outdoor Distribution Box Based on Electric Shock Protection," a distribution box is included, and an external wiring electric shock protection component is provided on the rear side of the distribution box. The external wiring electric shock protection component includes a connecting cylinder. This utility model discloses a modular assembled outdoor distribution box based on electric shock protection. The above-mentioned prior art has the function of isolating external wiring through the distribution box, reducing the risk of electric shock and ensuring personal safety. It can also prevent dust and moisture from entering the distribution box body and avoid affecting the operation of electrical equipment. However, if other specifications or other brands of isolation transformers are required, the corresponding mounting spokes need to be replaced, which makes the cost higher and the procurement cycle longer. Therefore, in order to reduce costs and shorten the procurement cycle, there is now a need for an electric shock protection safety isolation distribution box. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed electric shock-proof safety isolation distribution box to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An electric shock protection safety isolation distribution box includes a distribution box, an air switch installed on the inner wall of the distribution box, an isolation transformer installed on the inner wall of the distribution box, a fixing component installed at the bottom of the isolation transformer, and a branch line sealing component installed on the inner wall of the distribution box.

[0007] As a further optimization of this utility model, the fixing component includes two L-shaped brackets fixedly connected to the inner wall of the distribution box. The inner walls of the two L-shaped brackets are threaded with screws that are threaded to the inner wall of the distribution box. The inner walls of the two L-shaped brackets are provided with square grooves. The bottom of the isolation transformer is threaded to the top of the L-shaped brackets by bolts passing through the square grooves.

[0008] As a further optimization of this utility model, one of the L-shaped brackets has a limiting frame fixedly connected to its top, and the other L-shaped bracket has a slider fixedly connected to its top and slidably connected to the inner wall of the limiting frame. The inner wall of the limiting frame has a limiting groove, and the top of the slider has a limiting block fixedly connected to the inner wall of the limiting groove.

[0009] As a further optimization of this utility model, the branch sealing assembly includes a threaded sleeve fixedly penetrating the inner wall of the distribution box, one end of the threaded sleeve is threadedly connected to a locking nut, and an O-ring is sleeved on the inner wall of the locking nut.

[0010] As a further optimization of this utility model, the inner wall of the threaded sleeve is movably fitted with a flexible tube that abuts against the O-ring seal, and one end of the flexible tube is fixedly connected to a distributor.

[0011] As a further optimization of this utility model, a protective door is rotatably connected to the outer wall of the distribution box, and an indicator light is provided on the protective door.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses screws to fix the L-shaped bracket to the inner wall of the distribution box. Then, the isolation transformer is placed on the square slot and the bolts are tightened to complete the installation. If it is necessary to replace the isolation transformer with another specification, simply unscrew the screw on one side, pull the slider to adjust the distance between the two L-shaped brackets, adjust the sliding distance of the slider according to the bottom hole position of the replacement isolation transformer, tighten the screws again to fix the L-shaped bracket to the inner wall of the distribution box, and then install the new isolation transformer in the corresponding square slot. This improves versatility and flexibility, eliminates the need to customize the enclosure for different transformers, reduces equipment replacement or upgrade costs, adapts to different power and model requirements, and is suitable for a wider range of scenarios.

[0014] 2. This utility model separates the O-ring from the hose by unscrewing the locking nut, removes the hose, puts the wire harness into the hose, allows the wire harness inside the hose to branch out from the distributor, puts the hose back into the threaded sleeve, and tightens the locking nut to make the O-ring abut against the hose and fix it. Finally, the wire harness branched out from the distributor is fixed to the corresponding air switch. This can tidy up messy wires and prevent the insulation layer from failing due to pulling and friction damage to the cables, thus reducing the risk of leakage and short circuit from the source. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is the utility model Figure 1 Internal structure diagram;

[0017] Figure 3 This is a structural schematic diagram of the fixing component of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the branch sealing assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the O-ring seal and the hose of this utility model.

[0020] In the diagram: 1. Distribution box; 2. Air switch; 3. Isolation transformer; 4. Fixing components; 401. L-shaped bracket; 402. Limiting frame; 403. Slider; 404. Limiting groove; 405. Limiting block; 406. Screw; 407. Square groove; 5. Branch sealing assembly; 501. Threaded sleeve; 502. Locking nut; 503. O-ring seal; 504. Hoses; 505. Branch reel. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example 1, as Figure 1 , Figure 2 As shown, a shockproof safety isolation distribution box includes a distribution box 1, which provides a mounting carrier for all internal electrical components. The protective shell can prevent the components from being corroded by external dust and moisture. An air switch 2 is installed on the inner wall of the distribution box 1. The air switch 2 can quickly cut off the current in the event of overload or short circuit faults to prevent circuit burnout and electric shock accidents. An isolation transformer 3 is installed on the inner wall of the distribution box 1. The isolation transformer 3 achieves electrical isolation between the primary and secondary sides through electromagnetic induction, which can block the leakage current of the main circuit and ensure personnel safety. A protective door is rotatably connected to the outer wall of the distribution box 1. The protective door can form physical protection for the internal components of the distribution box 1 to prevent personnel from accidentally touching live parts. An indicator light is installed on the protective door. The indicator light can intuitively display the on / off status of the internal circuit of the distribution box 1, which can facilitate personnel to quickly judge the operating status of the equipment.

[0023] like Figure 1 , Figure 2 , Figure 3As shown, a fixing component 4 is provided at the bottom of the isolation transformer 3. The fixing component 4 enables the isolation transformer 3 to be stably installed on the inner wall of the distribution box 1 and facilitates subsequent specification replacement. The fixing component 4 includes two L-shaped brackets 401. The L-shaped brackets 401 provide a bottom support surface for the isolation transformer 3 to ensure horizontal stability after installation. The outer walls of the two L-shaped brackets 401 are fixedly connected to the inner wall of the distribution box 1, providing a stable installation foundation for the L-shaped brackets 401. Screws 406 are threaded through the inner walls of the two L-shaped brackets 401, and the screws 406 can be threaded to fix the L-shaped brackets. The L-shaped bracket 401 is detachably fixed to the inner wall of the distribution box 1. One end of the screw 406 is fixedly connected to the inner wall of the distribution box 1. The fixing of the end of the screw 406 ensures that the L-shaped bracket 401 is accurately installed on the inner wall of the distribution box 1. The inner walls of the two L-shaped brackets 401 are provided with square grooves 407. The square grooves 407 can be adapted to the holes at the bottom of the isolation transformers 3 of different specifications to achieve installation position adjustment. The bottom of the isolation transformer 3 is threaded to the top of the L-shaped bracket 401 by bolts passing through the square grooves 407. The bolt connection can firmly fix the isolation transformer 3 on the L-shaped bracket 401 to prevent the equipment from shaking during operation.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, a limiting frame 402 is fixedly connected to the top of one L-shaped bracket 401. The limiting frame 402 provides a sliding track to ensure accurate adjustment direction. A slider 403 is fixedly connected to the top of the other L-shaped bracket 401. The slider 403 is used to cooperate with the limiting frame 402 to adjust the distance between the two L-shaped brackets 401 to adapt to different specifications of isolation transformers 3. The outer wall of the slider 403 is slidably connected to the inner wall of the limiting frame 402. A limiting block 405 is fixedly connected to the top of the slider 403. The limiting block 405 prevents the slider 403 from deviating during sliding and ensures adjustment stability. A limiting groove 404 is opened in the inner wall of the limiting frame 402. The limiting groove 404 limits the sliding range of the limiting block 405 to prevent the slider 403 from disengaging from the limiting frame 402. The outer wall of the limiting block 405 is slidably connected to the inner wall of the limiting groove 404. The slider 403 moves smoothly by sliding the limiting block 405 in the limiting groove 404.

[0025] like Figure 1 , Figure 2 , Figure 4As shown, the inner wall of the distribution box 1 is equipped with a wire distribution sealing assembly 5. The wire distribution sealing assembly 5 can realize the orderly branching of external wire harnesses while ensuring the sealing performance of the distribution box 1 to prevent moisture from entering. The wire distribution sealing assembly 5 includes a threaded sleeve 501, which is used for the installation of subsequent components. The outer wall of the threaded sleeve 501 is fixedly inserted through the inner wall of the distribution box 1 to ensure that the threaded sleeve 501 is securely installed on the distribution box 1. A flexible hose 504 is movably sleeved on the inner wall of the threaded sleeve 501. The flexible hose 504 can protect the internal wire harnesses from wear and facilitate wire harness insertion. One end of 501 is threadedly connected to a locking nut 502 and simultaneously fitted with an O-ring 503. The locking nut 502 can be tightened by screwing the threads to compress the O-ring 503 to achieve a seal. After being compressed, the O-ring 503 can fill the gap to achieve a seal between the hose 504 and the threaded sleeve 501. The inner side of the O-ring 503 abuts against the outer side of the hose 504. One end of the hose 504 is fixedly connected to a splitter 505. The splitter 505 orderly separates the wire harness in the hose 504 through the holes. The wire harness separated by each hole is connected to the input terminal of the air switch 2.

[0026] It should be noted that, when installing the isolation transformer 3 in this type of electric shock safety isolation distribution box, firstly, slide the slider 403 according to the hole positions of the isolation transformer 3. Then, align the square groove 407 on the L-shaped bracket 401 with the hole positions at the bottom of the isolation transformer 3, so that the screw 406 passes through the L-shaped bracket 401 and is fixed to the inner wall of the distribution box 1. Then, place the isolation transformer 3 on the square groove 407 and tighten the bolts to complete the installation. If it is necessary to replace the isolation transformer 3 with another specification, simply unscrew the screw 406 on one side, then pull the slider 403 to adjust the distance between the two L-shaped brackets 401. Then, adjust the distance the slider 403 slides out according to the hole positions at the bottom of the replacement isolation transformer 3, so that the screw 406 is tightened again. Then, the adjusted L-shaped bracket 401 is re-fixed to the inner wall of the distribution box 1, and the replacement isolation transformer 3 can be installed in the corresponding square groove 407.

[0027] When installing the external wiring harness on the air switch 2, first loosen the locking nut 502, then separate the O-ring 503 from the hose 504, allowing the hose 504 to be removed. Then, insert the wiring harness into the hose 504, causing the wiring harness inside the hose 504 to branch off from the distributor 505. Then, reinsert the hose 504 into the threaded sleeve 501, and tighten the locking nut 502. Then, the O-ring 503 abuts against the hose 504, fixing the hose 504 in place. Finally, fix the wiring harness branched off from the distributor 505 to the corresponding air switch 2.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A safety isolation distribution box for protection against electric shock, characterized in that, The distribution box (1) includes an air switch (2) installed on the inner wall of the distribution box (1), an isolation transformer (3) installed on the inner wall of the distribution box (1), a fixing component (4) installed at the bottom of the isolation transformer (3), and a branch sealing component (5) installed on the inner wall of the distribution box (1). The fixing component (4) includes two L-shaped brackets (401) fixedly connected to the inner wall of the distribution box (1). The inner walls of the two L-shaped brackets (401) are threaded with screws (406) threaded to the inner wall of the distribution box (1). The inner walls of the two L-shaped brackets (401) are provided with square grooves (407). The bottom of the isolation transformer (3) is threaded to the top of the L-shaped brackets (401) by bolts passing through the square grooves (407).

2. The electric shock protection safety isolation distribution box according to claim 1, characterized in that: One of the L-shaped brackets (401) has a limiting frame (402) fixedly connected to its top, and the other L-shaped bracket (401) has a slider (403) fixedly connected to its top, which is slidably connected to the inner wall of the limiting frame (402). The inner wall of the limiting frame (402) has a limiting groove (404), and the top of the slider (403) has a limiting block (405) slidably connected to the inner wall of the limiting groove (404).

3. The electric shock protection safety isolation distribution box according to claim 1, characterized in that: The branch sealing assembly (5) includes a threaded sleeve (501) fixedly inserted through the inner wall of the distribution box (1). One end of the threaded sleeve (501) is threadedly connected to a lock nut (502), and an O-ring (503) is fitted on the inner wall of the lock nut (502).

4. The electric shock protection safety isolation distribution box according to claim 3, characterized in that: The inner wall of the threaded sleeve (501) is movably fitted with a flexible tube (504) that abuts against the O-ring seal (503), and one end of the flexible tube (504) is fixedly connected to a distributor (505).

5. The electric shock protection safety isolation distribution box according to claim 1, characterized in that: The outer wall of the distribution box (1) is rotatably connected to a protective door, and an indicator light is provided on the protective door.

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