A visual grounding box equipped with explosion-proof glass

Abstract

This utility model discloses a visual grounding box equipped with explosion-proof glass, relating to the field of grounding box technology. Existing grounding boxes require the removal of the cover to observe internal components during daily use. This utility model includes a box body with a detachable cover on one side, on which explosion-proof glass is fixedly installed. A grounding assembly is located within the box body's interior, comprising an insulating plate with a protector, a current transformer, and a copper busbar. A display screen is fixedly installed on one side of the box body's interior. A detachable sheath circulation current monitoring device is located on the side of the box body near the display screen, with a second current transformer fixedly installed at the lower end of the sheath circulation current monitoring device. An array of wiring holes is provided at the lower end of the box body. This technical solution allows personnel to conveniently observe the working status of internal components and real-time information on the display screen through the explosion-proof glass, without removing the cover, reducing the safety hazards associated with repeated cover removal and installation, and improving the convenience and safety of the grounding box.

Description

Technical Field

[0001] This utility model relates to the field of grounding box technology, specifically a visual grounding box equipped with explosion-proof glass. Background Technology

[0002] The grounding box is used to store grounding wires and serves as a protective grounding wire. It has the same function as the grounding busbar. Specifically, it is divided into direct grounding box, protective grounding box, three-phase cross-interconnected grounding box, and three-phase six-wire grounding box.

[0003] Most existing grounding boxes are not visible, which means that staff have to remove the box cover to observe the internal components during daily use. However, repeated disassembly and reassembly of the box cover poses a significant safety hazard, thereby reducing the convenience and safety of the grounding box.

[0004] To address the aforementioned problems, the inventors proposed a visual grounding box equipped with explosion-proof glass to solve these issues. Utility Model Content

[0005] To address the issue that existing grounding boxes require the cover to be removed during daily use to observe internal components, the purpose of this invention is to provide a visual grounding box equipped with explosion-proof glass.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] One side of the enclosure is equipped with a removable cover, on which explosion-proof glass is fixedly installed;

[0008] The inner cavity of the enclosure is provided with a grounding assembly, which includes an insulating plate fixedly installed on the inner wall of the enclosure. The insulating plate is provided with a protector, a current transformer and a copper busbar.

[0009] A display screen is fixedly installed on one side of the inner cavity of the box;

[0010] The enclosure is equipped with a detachable sheath circulation monitoring device on the side near the display screen, and a current transformer is fixedly installed at the lower end of the sheath circulation monitoring device.

[0011] The lower end of the box has an array of wire holes.

[0012] This technical solution embeds the explosion-proof glass directly into the enclosure cover, allowing personnel to easily observe the working status of internal components and the real-time information displayed on the screen during the grounding box's use. This eliminates the need to remove the cover for observation, reducing the safety hazards associated with repeated cover removal and installation, and effectively improving the ease of use and safety of the grounding box. The display screen shows key parameters of the grounding system (such as current and voltage) in real time. Combined with the sheath current monitoring device and current transformer II, it performs specialized monitoring of the cable sheath current, achieving dual protection through "visual inspection + data diagnosis." The explosion-proof glass can withstand the impact of internal arc explosions, preventing glass fragments from flying due to enclosure explosions in case of malfunctions, thus protecting operator safety. The grounding components (protector, current transformer I, copper busbar) are integrated onto an insulating board, forming an independent module with the detachable sheath current monitoring device. In case of a fault, a single module can be quickly located and replaced, reducing downtime. The display screen and sheath current monitoring device are placed on the inner wall of the enclosure, increasing the observation field of the explosion-proof glass while maximizing the use of internal space through a compact layout. The array of cable holes supports the parallel running of multiple cables (such as grounding wires, signal lines, and power lines), achieving physical separation and avoiding the risk of short circuits or signal interference caused by cable tangling. Unused cable holes can be used as reserved channels, so when adding cables later, there is no need to make secondary openings in the enclosure or damage the sealing structure; expansion can be completed directly by utilizing the empty holes.

[0013] As a preferred technical means: one end of the box body is provided with symmetrically distributed through holes, and the box cover is provided with symmetrically arranged through holes; the through holes and the through holes are internally threaded with bolts.

[0014] Symmetrically distributed perforations and through holes are locked together with bolts to ensure that the joint surface between the cover and the body is evenly stressed, eliminating the risk of local deformation, ensuring the sealing of the explosion-proof glass perimeter, and preventing external moisture and dust from entering the interior of the enclosure.

[0015] As a preferred technical means: a mounting bracket is fixedly installed on the inner wall of the enclosure, and the display screen is fixedly installed on the mounting bracket.

[0016] The mounting bracket creates a convection gap between the display screen and the cabinet wall, accelerating the heat dissipation to the top of the cabinet and preventing the display screen from malfunctioning due to heat buildup.

[0017] As a preferred technical means: symmetrically protruding brackets are fixedly connected to the left and right ends of the back of the box, and symmetrical through slots are opened through the brackets.

[0018] The symmetrical, elongated design of the through-slot allows for continuous adjustment and fixing of the bolts within the slot, accommodating hole spacing deviations on different mounting surfaces such as wall embedded parts and steel structure columns, completely eliminating the need for on-site welding modifications. The bracket protrudes from the back panel of the enclosure, elevating the enclosure and creating a gap between the bottom surface of the enclosure and the mounting surface; condensation can drip down along this gap, preventing water accumulation and subsequent corrosion of the cables inside the enclosure; furthermore, the bracket is located on the left and right ends of the back of the enclosure, making the through-slot clearly visible and unobstructed by the enclosure, facilitating connection operations.

[0019] As a preferred technical means: a detachable side frame is provided on one side of the box, and the protective layer circulation monitoring device is fixedly connected to the side frame.

[0020] The physical separation design of the side frame and the enclosure allows the sheath circulation current monitoring device to be disassembled as a whole with the side frame. In case of failure, the entire module can be replaced directly, reducing maintenance time. In addition, the sheath circulation current monitoring device is located on the outside of the enclosure, which does not occupy the internal space of the enclosure, and can block the interference of strong electric fields on the signal acquisition of the monitoring device, improving the accuracy of sheath circulation current data and enhancing the reliability of operation.

[0021] As a preferred technical means: Symmetrically distributed through holes are provided at both ends of the side frame, and a through hole is provided on one side of the housing. Two bolts are threaded into the through holes. This ensures convenient and reliable connection.

[0022] As a preferred technical means, the insulating board is an SMC sheet molding compound structure.

[0023] SMC (Sheet Molding Compound) is a layered composite material with a resin matrix and glass fiber reinforcement. It achieves high strength, high insulation, and environmental resistance through compression molding. It maintains its insulation performance even in humid and hot environments, completely blocking leakage current from the copper busbar to the enclosure and avoiding the risk of electric shock caused by grounding failure. It has good arc resistance, preventing secondary short circuits caused by insulation breakdown. Its high bending strength ensures minimal long-term deformation when supporting heavy components such as protectors and transformers, ensuring that connection terminals do not loosen.

[0024] As a preferred technical means, the explosion-proof glass has a multi-layer structure, including an outer polycarbonate fiber layer, an explosion-proof glass layer, and an inner polycarbonate fiber layer.

[0025] The multi-layered explosion-proof glass provides the enclosure with high-strength, impact-resistant, explosion-proof, and transparent protection; the outer polycarbonate fiber layer can absorb the energy of external mechanical impacts first, dispersing the impact force across the entire glass surface; the inner polycarbonate fiber layer blocks the splashing of glass fragments generated by internal explosions, improving impact resistance.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] By using the box cover, explosion-proof glass, and display screen together, staff can conveniently observe the working status of the internal components and the real-time information displayed on the screen through the explosion-proof glass during the use of the grounding box, without having to remove the box cover for observation. This effectively reduces the safety hazards caused by repeated disassembly and reassembly of the box cover, thereby effectively improving the convenience and safety of the grounding box. Furthermore, the use of explosion-proof glass can further enhance the safety of the grounding box. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the installation of the grounding component in this utility model.

[0031] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0032] Figure 4 yes Figure 2 Enlarged schematic diagram of the structure at point B.

[0033] Figure 5 yes Figure 2 Enlarged schematic diagram of the structure at point C.

[0034] In the diagram: 1. Enclosure; 11. Through hole one; 12. Through hole two; 13. Wiring hole; 2. Enclosure cover; 21. Through hole one; 3. Explosion-proof glass; 4. Grounding assembly; 41. Insulating board; 42. Protector; 43. Current transformer one; 44. Copper busbar; 5. Display screen; 51. Mounting bracket; 6. Sheath circulation current monitoring device; 7. Current transformer two; 8. Bracket; 81. Through slot; 9. Side frame; 91. Through hole two. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example: Figure 1-5 As shown, this utility model provides a visual grounding box equipped with explosion-proof glass, including a box body 1. The lower end of the box body 1 has through-holes 13 for use, and the through-holes 13 are arranged in an array. The through-holes 13 provide a guarantee for the normal connection of cables through the box body 1. A detachable box cover 2 is provided on one side of the box body 1, and explosion-proof glass 3 is fixedly installed on the box cover 2. One end of the box body 1 has symmetrically distributed through-holes 11, and the box cover 2 has symmetrically arranged through-holes 21. The through-holes 21 and the through-holes 11... The screw threaded bolt, through hole 21, and through hole 11 facilitate the connection and fixation of the cover 2 and the enclosure 1. The enclosure 1 has a grounding assembly 4 inside, which includes an insulating plate 41 fixedly mounted on the inner wall of the enclosure 1. The insulating plate 41 is of SMC structure and has a protector 42, a current transformer 43, and a copper busbar 44. A display screen 5 is fixedly mounted on one side of the enclosure 1, and a mounting bracket is fixedly mounted on the inner wall of the enclosure 1. 51, and the display screen 5 is fixedly installed on the mounting bracket 51. The mounting bracket 51 provides a guarantee for the stable installation of the display screen 5. The side of the cabinet 1 near the display screen 5 is provided with a detachable protective layer circulation monitoring device 6 for use. The side of the cabinet 1 is provided with a detachable side frame 9, and the protective layer circulation monitoring device 6 is fixedly connected to the side frame 9. Both ends of the side frame 9 are provided with symmetrically distributed through holes 91, and the side of the cabinet 1 is provided with a through hole 12. Bolts 91 can be threaded into the through holes 91 and 12. 1. The use of perforation 12 and bolt 2 facilitates the connection and fixation of side frame 9 and housing 1. The lower end of the sheath circulation monitoring device 6 is fixedly installed with a matching transformer 7. Both transformer 1 43 and transformer 2 7 are instrument transformers, which are special purpose transformers with two main uses: one is to expand the range of AC electrical instruments, and the other is to isolate high voltage and large current and convert them into low voltage and small current for use as signals for relay protection, automatic devices and control circuits. This is existing technology and will not be elaborated on here.

[0037] By adopting the above technical solution, when in use, the box 1 is fixed in a suitable position by the cooperation of the fixing bolt and the through groove 81. Then, the cable is threaded and fixed, and the display screen 5 is connected and powered on. During the use of the grounding box, the staff can conveniently observe the working status of the internal components of the box 1 and observe the real-time information displayed on the display screen 5 through the explosion-proof glass 3 without removing the box cover 2 for observation. This effectively reduces the safety hazards caused by repeated disassembly and reassembly of the box cover 2, thereby effectively improving the convenience and safety of the grounding box. Furthermore, the use of the explosion-proof glass 3 can further improve the safety of the grounding box.

[0038] The back of the box 1 is fixedly connected to the left and right ends of the symmetrically protruding brackets 8, and the brackets 8 are provided with symmetrically arranged through slots 81.

[0039] By adopting the above technical solution, the use of bracket 8, through slot 81 and fixing bolt provides convenience for the installation and fixation of box 1.

[0040] To enhance strength, the explosion-proof glass 3 employs a multi-layered structure, consisting of an outer polycarbonate fiber layer, an explosion-proof glass layer, and an inner polycarbonate fiber layer from the outside in. The explosion-proof glass layer is sandwiched between the inner and outer polycarbonate fiber layers. The outer polycarbonate fiber layer absorbs the energy of external mechanical impacts first, dispersing the impact force across the entire glass surface; the inner polycarbonate fiber layer prevents glass fragments from flying during an internal explosion, improving impact resistance; the middle explosion-proof glass layer provides rigid support and arc protection, and features high light transmittance and low dispersion observation.

[0041] Working principle: During use, the enclosure 1 is fixed in a suitable position by using the fixing bolts and the through slot 81. Then, the cables are threaded and fixed, and the display screen 5 is connected and powered on. During the use of the grounding box, the staff can conveniently observe the working status of the internal components of the enclosure 1 and observe the real-time information displayed on the display screen 5 through the explosion-proof glass 3 without removing the cover 2 for observation. This effectively reduces the safety hazards caused by repeated disassembly and reassembly of the cover 2, thereby effectively improving the convenience and safety of the grounding box. The use of the explosion-proof glass 3 can further improve the safety of the grounding box.

[0042] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A visual grounding box equipped with explosion-proof glass, comprising a box body (1), characterized in that: The box body (1) has a detachable box cover (2) on one side, and explosion-proof glass (3) is fixedly installed on the box cover (2). The inner cavity of the enclosure (1) is provided with a grounding component (4), which includes an insulating plate (41) fixedly installed on the inner wall of the enclosure (1). The insulating plate (41) is provided with a protector (42), a current transformer (43) and a copper busbar (44). A display screen (5) is fixedly installed on one side of the inner cavity of the housing (1); The housing (1) is provided with a detachable sheath circulation monitoring device (6) on the side near the display screen (5), and a current transformer (7) is fixedly installed at the lower end of the sheath circulation monitoring device (6). The lower end of the box (1) is provided with an array of wire holes (13).

2. A visual grounding box equipped with explosion-proof glass as described in claim 1, characterized in that, One end of the box body (1) is provided with symmetrically distributed through holes (11), and the box cover (2) is provided with symmetrically arranged through holes (21); the through holes (21) and the through holes (11) are connected by internal threads with bolts.

3. A visual grounding box equipped with explosion-proof glass as described in claim 1, characterized in that, A mounting bracket (51) is fixedly installed on the inner wall of the housing (1), and the display screen (5) is fixedly installed on the mounting bracket (51).

4. A visual grounding box equipped with explosion-proof glass as described in claim 1, characterized in that, The back of the box (1) is fixedly connected to the left and right ends of the symmetrically protruding brackets (8), and the brackets (8) are provided with symmetrically arranged through slots (81).

5. A visual grounding box equipped with explosion-proof glass as described in claim 1, characterized in that, The box (1) is provided with a detachable side frame (9) on one side, and the protective layer circulation monitoring device (6) is fixedly connected to the side frame (9).

6. A visual grounding box equipped with explosion-proof glass as described in claim 5, characterized in that, Both ends of the side frame (9) are provided with symmetrically distributed through holes (91), and one side of the box body (1) is provided with through holes (12). The through holes (91) and through holes (12) are internally threaded with bolts.

7. A visual grounding box equipped with explosion-proof glass as described in claim 1, characterized in that, The insulating board (41) is an SMC sheet molding compound structure.

8. A visual grounding box equipped with explosion-proof glass as described in claim 1, characterized in that, The explosion-proof glass has a multi-layer structure, including an outer polycarbonate fiber layer, an explosion-proof glass layer, and an inner polycarbonate fiber layer.

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