A temporary electrical wiring device for building electromechanical systems

Abstract

This utility model provides a temporary electrical wiring device for building electromechanical systems, relating to the field of junction box technology. The utility model includes a junction box with legs underneath, which support the junction box to ensure a gap between the junction box and the ground. Inside the junction box is an assembly section that connects the power bus from the power grid to the power lines of the electrical equipment. The assembly section includes a perforated plate installed inside the junction box, with circuit protection components detachably mounted on the perforated plate. A cabinet door is rotatably mounted on the junction box, and an identification plate is provided on the surface of the door. In this utility model, the perforated plate surface is evenly distributed with holes. Electrical equipment such as electricity meters, emergency power-off switches, disconnect switches, circuit breakers, and residual current devices (RCDs) are detachably bolted into the holes in the perforated plate. These components can be adjusted in position and installed on the perforated plate surface according to actual needs, requiring no additional drilling and allowing for quick adaptation to different requirements.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a temporary power connection wiring device for building electromechanical systems. Background Technology

[0002] A junction box, also known as a terminal cabinet, is an important piece of equipment used to connect, distribute, organize, and protect wires, cables, and electrical equipment. The junction box introduces power cables and utility cables, which are wired inside the junction box to ensure circuit continuity.

[0003] Construction sites often require a lot of temporary machinery and equipment (such as concrete mixers). To facilitate power supply to these devices, junction boxes are used. Since the electrical equipment used on construction sites is different, the actual power requirements are also different (the power of ordinary lighting and mixers differs greatly; ordinary lighting only requires terminals, while the junction box for mixers requires at least circuit breakers, residual current devices, and other electrical protection components). Therefore, the internal components of the junction box are also different, so a highly adaptable temporary junction box needs to be designed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a temporary electrical wiring device for building electromechanical systems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a temporary electrical wiring device for building electromechanical systems, comprising a junction box, wherein a support leg is provided below the junction box, wherein the support leg supports the junction box to ensure that there is a gap between the junction box and the ground, wherein an assembly part is provided inside the junction box, wherein the assembly part connects the power bus from the power grid and the power line of the electrical equipment, wherein the assembly part includes a perforated plate installed inside the junction box, wherein the circuit protection component is detachably installed on the perforated plate, wherein the port of the junction box is provided with a sealing part, wherein the sealing part includes a cabinet door that is rotatably installed on the junction box, and an identification plate is provided on the surface of the cabinet door.

[0006] The aforementioned components achieve the following effect: Construction sites often require many temporary mechanical devices (such as concrete mixers). To facilitate power supply to these devices, junction boxes are used. These junction boxes contain electricity meters, emergency power-off switches, disconnect switches, circuit breakers, and residual current devices (RCDs). The main power line from the grid is connected to the input of the electricity meter (which can be a standard meter used to measure power consumption). The output of the electricity meter is electrically connected to the input of the emergency power-off switch via a wire. The output of the emergency power-off switch is electrically connected to the input of the circuit breaker. The output of the circuit breaker is electrically connected to the inputs of multiple disconnect switches via multi-strand wires. The output of the disconnect switches is electrically connected to the input of the RCD. The output of the RCD is electrically connected to... The cable supplies power to the electrical equipment. The perforated board is made of insulated, non-flammable plastic (the non-flammable plastic boards used in conventional electrical equipment and the insulation are existing technologies, so they will not be discussed in detail here). The surface of the junction box is also equipped with a grounding component, which electrically connects the junction box to the ground. The support legs raise the junction box to the ground by at least 0.6m to prevent the junction box from getting damp. The surface of the identification plate records important information such as the junction box number, purpose, warning signs, and electrician's contact number. Because the surface of the perforated board is evenly perforated, electrical equipment such as electricity meters, emergency power cut-off switches, disconnect switches, circuit breakers, and residual current devices can be detached and installed in the holes of the perforated board by bolts. The positions of these components can be adjusted and installed on the surface of the perforated board according to actual needs, without the need for additional drilling, and can be quickly adapted to different needs.

[0007] Preferably, the assembly part further includes a bracket, wherein the bracket is detachably installed inside the junction box, and the perforated plate is fixed by being hung on the bracket by means of hooks.

[0008] The above components achieve the following effects: they facilitate the installation of the perforated board inside the junction box as needed; since the bracket is bolted, it is easy to disassemble and assemble (it can remove the internal components of a regular sheet metal electrical cabinet and then make improvements); by using a screwdriver to tighten or loosen the screws through the mounting holes, the hook part and the fixed assembly / disassembly can be achieved.

[0009] Preferably, the junction box has mounting holes, and the junction box is mounted on a bracket with bolts through the mounting holes. The bracket and the hook are fixed together by screws.

[0010] Preferably, a collection section is installed inside the junction box near the bottom, and a downward recess is provided above the collection section.

[0011] The effect achieved by the above-mentioned component is that the collecting part can be used to collect debris, which is collected along the downward concave section.

[0012] Preferably, the side of the junction box is provided with heat dissipation holes, and a protective part can be optionally installed inside the junction box at a position relative to the heat dissipation holes, the protective part being able to filter the air passing through the heat dissipation holes.

[0013] Preferably, the protective part includes a track frame, which is installed inside the junction box at a position opposite to both sides of the heat dissipation holes. The track frame and the junction box are directly slidably inserted with a sliding frame, wherein a filter screen is embedded inside the sliding frame.

[0014] The effect achieved by the above components is as follows: The junction box is set up on the construction site, where there is relatively a lot of dust and the environment is poor, making it easy for debris to enter the junction box. Therefore, a filter screen is required. The filter screen can reduce the gaps in the heat dissipation holes and slow down the entry of large particles of debris into the junction box, thus ensuring the cleanliness of the inside of the junction box as much as possible. During routine maintenance, the sliding frame can be pulled out of the track frame, which allows for the removal of the sliding frame to clean the dust from the filter screen.

[0015] Preferably, the side of the sliding frame is provided with a mounting groove, and a spring piece is fixedly connected inside the mounting groove. The spring piece extends out of the mounting groove from the inside of the mounting groove, and the spring piece is squeezed and bent when the sliding frame is inserted into the track frame.

[0016] The effect achieved by the above components is as follows: during disassembly, a compression spring is inserted between the slide frame and the track frame by inserting a thin sheet, which further bends the slide frame to facilitate its removal from the track frame. When installation is required, the slide frame is inserted along the track frame, and the slide frame is inserted along the arc surface of the spring.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] In this utility model, because the perforated plate has holes evenly distributed on its surface, electrical equipment such as electricity meters, emergency power-off main switches, disconnect switches, circuit breakers and leakage current protectors can be detached from the holes in the perforated plate by bolts. The above components can be installed on the surface of the perforated plate according to actual needs by adjusting their positions, without the need for additional drilling, and can be quickly adapted to different needs. Attached Figure Description

[0019] Figure 1 This utility model provides a three-dimensional structural diagram of a temporary electrical wiring device for building electromechanical systems.

[0020] Figure 2 This is a schematic diagram of the internal structure of the junction box of this utility model;

[0021] Figure 3 In this utility model Figure 1 A diagram of the back of the building;

[0022] Figure 4 This is a schematic diagram of the assembly part in this utility model;

[0023] Figure 5 This is a schematic diagram of the collecting part in this utility model;

[0024] Figure 6 This is a schematic diagram of the sliding frame in the open state in this utility model.

[0025] Legend: 1. Junction cabinet; 2. Enclosure section; 21. Cabinet door; 22. Sign; 3. Support leg; 4. Assembly section; 41. Perforated plate; 42. Hook section; 43. Bracket; 44. Screw; 45. Bolt; 46. Mounting hole; 5. Ventilation hole; 6. Protective section; 61. Track frame; 62. Sliding frame; 63. Mounting groove; 64. Spring; 65. Filter screen; 7. Collection section; A. Emergency power cut-off main switch; B. Electricity meter; C. Disconnect switch; D. Circuit breaker; E. Residual current device (RCD). Detailed Implementation

[0026] Example 1, as Figure 1-6As shown, a temporary electrical wiring device for building electromechanical systems includes a junction box 1. Support legs 3 are installed below the junction box 1, ensuring a gap between the junction box 1 and the ground. An assembly section 4 is installed inside the junction box 1, connecting the power bus from the power grid and the power lines of the electrical equipment. The assembly section 4 includes a perforated plate 41 installed inside the junction box 1, on which circuit protection components are detachably installed. A sealing section 2 is provided at the port of the junction box 1, including a rotating cabinet door 21. A sign 22 is provided on the surface of the cabinet door 21. Construction sites often require many temporary mechanical devices (e.g., a mixer is needed for mixing concrete). To facilitate power supply to these devices, a junction box 1 is used. The junction box 1 contains an electricity meter B, an emergency power-off main switch A, and an isolation... The junction box 1 is connected to switch C, circuit breaker D, and residual current device (RCD) E. The main circuit line from the power grid is connected to the input of electricity meter B (which can be a conventional meter used to measure power consumption). The output of electricity meter B is electrically connected to the input of emergency power disconnect switch A via a wire. The output of emergency power disconnect switch A is electrically connected to the input of circuit breaker D. The output of circuit breaker D is electrically connected to the input of multiple isolating switches C via a multi-strand branch line. The output of isolating switches C is electrically connected to the input of RCD E. The output of RCD E supplies power to the electrical equipment via a cable. The perforated plate 41 is made of non-flammable, insulating plastic (the non-flammable and insulating properties of conventional electrical equipment are existing technologies and will not be elaborated upon here). The surface of junction box 1 is also equipped with a grounding component, which electrically connects junction box 1 to the ground. The support leg 3 elevates junction box 1 above the ground by at least 0 mm.The 6m diameter prevents junction box 1 from getting damp. The surface of the identification plate 22 records important information such as the junction box 1 number, purpose, warning labels, and electrician's contact number. Because the perforated plate 41 has evenly distributed holes, electrical equipment such as the electricity meter B, emergency power-off main switch A, isolating switch C, circuit breaker D, and residual current device E can be detachably installed in the holes of the perforated plate 41 using bolts 45. These components can be adjusted and installed on the surface of the perforated plate 41 according to actual needs, requiring no additional drilling and allowing for quick adaptation to different requirements. The assembly part 4 also includes a bracket 43, which is detachably installed inside the junction box 1. The perforated plate 41 is fixed to the bracket 43 using hooks 42, facilitating easy installation and removal as needed. A perforated plate 41 is installed inside the junction box 1. Since the bracket 43 is installed with bolts 45, it is easy to disassemble and assemble (the internal components of a standard sheet metal electrical cabinet can be removed and modified). A screwdriver 44 is used to tighten or loosen the screws 44 through the mounting holes 46, thus allowing the hook part 42 to be fixed and disassembled. The junction box 1 has mounting holes 46, which, along with the bolts 45, are used to install the bracket 43. The bracket 43 and the hook part 42 are fixed together with screws 44. A collection part 7 is installed near the bottom inside the junction box 1. A downward recess is provided above the collection part 7 to collect debris. The debris is collected along the downward recess. The sides of the junction box 1 are also provided with… The junction box 1 has ventilation holes 5. A protective section 6 can be optionally installed inside the junction box 1, positioned relative to the ventilation holes 5. The protective section 6 filters the air passing through the ventilation holes 5. The protective section 6 includes a track frame 61, which is installed inside the junction box 1 on both sides relative to the ventilation holes 5. A sliding frame 62 is directly inserted between the track frame 61 and the junction box 1. A filter screen 65 is embedded inside the sliding frame 62. Since the junction box 1 is located on a construction site, where there is relatively a lot of dust and the environment is poor, debris can easily enter the junction box 1. Therefore, a filter screen 65 is necessary. The filter screen 65 reduces the gaps in the ventilation holes 5 and slows down the entry of large particles into the junction box 1, thus ensuring the cleanliness of the interior of the junction box 1 as much as possible. During routine maintenance, the sliding frame 62 can be pulled out of the track frame 61, allowing for easy removal of the sliding frame 62 to clean the dust from the filter screen 65. The sliding frame 62 has a mounting groove 63 on its side, with a spring piece 64 fixedly connected inside. The spring piece 64 extends out of the mounting groove 63. When the sliding frame 62 is inserted into the track frame 61, the spring piece 64 is compressed and bent. During disassembly, a thin sheet is inserted between the sliding frame 62 and the track frame 61 to compress the spring piece 64, further bending it and facilitating the removal of the sliding frame 62 from the track frame 61. For installation, the sliding frame 62 is inserted along the track frame 61, following the curved surface of the spring piece 64.

[0027] Working principle: The junction box 1 contains an electricity meter B, an emergency power-off main switch A, a disconnector switch C, a circuit breaker D, and a residual current device (RCD) E. The main circuit from the power grid is connected to the input of electricity meter B (which can be a standard electricity meter used to measure power consumption). The output of electricity meter B is electrically connected to the input of emergency power-off main switch A via a wire. The output of emergency power-off main switch A is electrically connected to the input of circuit breaker D. The output of circuit breaker D is electrically connected to the inputs of multiple disconnectors C via multi-strand wires. The output of disconnectors C is electrically connected to the input of RCD E. The output of RCD E supplies power to the electrical equipment via a cable. The perforated plate 41 is made of insulated, non-flammable plastic (the non-flammability and insulation of plastic plates used in conventional electrical equipment are existing technologies and will not be elaborated further here). The surface of the junction box 1 is also equipped with a grounding component, which electrically connects the junction box 1 to the ground. The support legs 3 elevate the junction box 1 at least 0.6m above the ground to prevent moisture damage. The identification plate 22 records important information such as the junction box 1's number, purpose, warning labels, and the electrician's contact number. Because the perforated plate 41 has evenly distributed holes, electrical equipment such as the electricity meter B, emergency power-off main switch A, disconnector switch C, circuit breaker D, and residual current device E can be removed using bolts 45. The components are installed in the holes of the perforated plate 41. The positions of the components can be adjusted and installed on the surface of the perforated plate 41 according to actual needs. No additional drilling is required, which can quickly adapt to different needs. It is convenient to install the perforated plate 41 inside the junction box 1 according to the requirements. Since the bracket 43 is installed with bolts 45, it is easy to disassemble and assemble (the internal components of ordinary sheet metal electrical cabinets can be removed and then modified). By using a screwdriver 44 through the mounting hole 46 to tighten or loosen the screw 44, the hook part 42 and the fixed assembly and disassembly can be achieved. The collection part 7 can be used to collect debris. The debris is collected along the downward concave section. The junction box 1 is set up on the construction site. The construction site has relatively more dust and the construction site environment is poor, which makes it easy for debris to accumulate. Since debris enters the junction box 1, a filter 65 is required. The filter 65 reduces the gaps in the heat dissipation holes 5 and slows down the entry of large particles into the junction box 1, thus ensuring the cleanliness of the inside of the junction box 1 as much as possible. During routine maintenance, the slide frame 62 can be pulled out of the track frame 61, which allows the slide frame 62 to be removed for cleaning the dust from the filter 65. When disassembling, a thin sheet is inserted along the space between the slide frame 62 and the track frame 61 to squeeze the spring 64, making it bend further to facilitate pulling the slide frame 62 out of the track frame 61. When installation is required, the slide frame 62 is inserted along the track frame 61. The slide frame 62 is inserted along the arc surface of the spring 64.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A construction electromechanical temporary power connection wiring device, characterized by: The device includes a junction box (1), with a support leg (3) below the junction box (1). The support leg (3) supports the junction box (1) to ensure that there is a gap between the junction box (1) and the ground. An assembly part (4) is provided inside the junction box (1). The assembly part (4) connects the power bus from the power grid and the power line of the electrical equipment. The assembly part (4) includes a perforated plate (41) installed inside the junction box (1). The circuit protection component is detachably installed on the perforated plate (41).

2. The construction electro-mechanical temporary power connection wiring device according to claim 1, wherein: The assembly unit (4) also includes a bracket (43), wherein the bracket (43) is detachably installed inside the junction box (1), and the perforated plate (41) is fixed by means of a hook (42) hanging on the bracket (43).

3. The temporary electrical wiring device for building electromechanical systems according to claim 2, characterized in that: The junction box (1) has a mounting hole (46). The junction box (1) uses the mounting hole (46) and bolts (45) to install the bracket (43). The bracket (43) and the hook part (42) are fixed by screws (44).

4. The temporary electrical wiring device for building electromechanical systems according to any one of claims 1-3, characterized in that: The junction box (1) has a collection part (7) installed near the bottom inside, and a downward recess is provided above the collection part (7).

5. The temporary electrical wiring device for building electromechanical systems according to claim 1, characterized in that: The junction box (1) is provided with heat dissipation holes (5) on its side. A protective part (6) may be installed inside the junction box (1) at a position relative to the heat dissipation holes (5). The protective part (6) can filter the air passing through the heat dissipation holes (5).

6. The temporary electrical wiring device for building electromechanical systems according to claim 5, characterized in that: The protective part (6) includes a track frame (61), which is installed inside the junction box (1) on both sides of the heat dissipation hole (5). The track frame (61) and the junction box (1) are directly slidably inserted with a sliding frame (62), wherein a filter screen (65) is embedded inside the sliding frame (62).

7. The temporary electrical wiring device for building electromechanical systems according to claim 6, characterized in that: The sliding frame (62) has an installation groove (63) on its side. A spring piece (64) is fixedly connected inside the installation groove (63). The spring piece (64) extends out of the installation groove (63) from the inside of the installation groove (63). When the sliding frame (62) is inserted into the track frame (61), the spring piece (64) is squeezed and bent.

8. The temporary electrical wiring device for building electromechanical systems according to claim 1, characterized in that: The junction box (1) has a sealing section (2) at its port. The sealing section (2) includes a cabinet door (21) that is rotatably installed on the junction box (1). The surface of the cabinet door (21) is provided with an identification plate (22).

Images