Lightning protection earthing device of assembled component
Technical Field
The utility model relates to the technical field of lightning protection grounding, in particular to a lightning protection grounding device of an assembled component.
Background
In the building field, the problem of temporary electricity utilization lightning protection grounding in a building floor is always a difficult problem to solve, and according to the current national temporary electricity utilization standard specification, the secondary distribution box and the terminal equipment should be repeatedly grounded. Most of the past experience is to adopt pre-buried lightning protection flat steel, and repeatedly connect the tail end with the lightning protection flat steel for welding. However, because the protective zero line of the secondary distribution box and the terminal electric equipment of many high-rise buildings adopts a wiring nose, the protective zero line and the embedded flat steel are difficult to be effectively connected.
The application number 202320352014.4 discloses a lightning protection grounding device which comprises a grounding body, grounding flat steel and a positioning assembly, wherein the grounding body and the ground are vertically arranged in a mutually perpendicular mode, the length direction of the grounding flat steel is mutually perpendicular to the grounding body and is detachably connected with one side of the grounding body in the horizontal direction through the positioning assembly, the positioning assembly comprises a female seat matched with a male plug, and the male plug can slide from top to bottom along the grounding body and is inserted into the female seat. However, the lightning protection grounding device has the advantages of fixed structure and poor flexibility, can not be implemented and used in floors, particularly high-rise buildings, and still can not solve the problems of effective connection of the floor secondary distribution box, the protection of terminal electric equipment and the lightning protection grounding connection nose. Therefore, there is a need for a grounding device that is highly flexible and adaptable to lightning grounding on floors.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a lightning protection grounding device of an assembled component, which solves the problems in the background art.
The lightning protection grounding device of the assembled component comprises a grounding positioning component, a grounding connection vertical plate and a grounding bottom plate, wherein a connecting terminal for connecting and protecting a zero line is arranged on the surface of the grounding positioning component, a bolt is arranged at one end of the grounding positioning component, the grounding positioning component is connected into a mounting nut on the grounding connection vertical plate through the bolt in a threaded manner, a butterfly nut is further connected to the surface of one end of the grounding positioning component in a threaded manner, and the grounding connection vertical plate and the grounding bottom plate are vertically welded together in a T shape.
Optionally, the ground connection vertical plate and the ground bottom plate are both made of pure copper galvanized materials, wherein the thickness of the ground connection vertical plate is 8mm, and the height of the ground connection vertical plate is 70mm.
Optionally, the diameter of the bolt is adapted to the inner diameters of the wing nut and the mounting nut.
Optionally, the inner side wall of the mounting nut is threaded, and the thickness of the mounting nut is 13mm-15mm.
Optionally, a stop block is disposed at a connection between the bolt and the grounding locating component.
The utility model provides a lightning protection grounding device of an assembled component, which has the following beneficial effects:
1. This lightning protection earthing device of assembled component welds through ground connection bottom plate and floor girder reinforcing bar, and installation ground connection locating component after the concrete placement is accomplished, through the connecting terminal of ground connection locating component is connected to the earth connection ground connection nose with equipment, can focus to solve the ground connection problem of high-rise floor second grade block terminal and terminal consumer, realizes the resistance effect of floor lightning protection ground, when electrical equipment takes place the electric leakage, the electric current can be through the earthing conductor rather than human flow direction earth to reduce the danger of electric shock.
2. This lightning protection earthing device of assembled component can make the earth voltage of electrical equipment shell be close the earth potential simultaneously, reduces the electric shock risk when personnel contact shell, provides a reference potential for the consumer, helps keeping electric power system's stability, prevents interference and overvoltage, and each subassembly is nimble to be assembled, in case damage all can change alone in one of them part appearance, facilitates the use, and its simple structure is firm simultaneously, can make things convenient for the unified preparation of producer, possesses the advantage that the cost of manufacture is low.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;
fig. 3 is a schematic view of the connecting device of the present utility model.
In the figure, the device comprises a grounding positioning assembly 1, a grounding connecting vertical plate 2, a bolt 3, a grounding bottom plate 4, a connecting terminal 5, a mounting nut 6, a butterfly nut 7, a stop block 8 and a stop block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-2, the utility model provides a lightning protection grounding device of an assembled component, which comprises a grounding positioning assembly 1, a grounding connection vertical plate 2 and a grounding bottom plate 4, wherein the surface of the grounding positioning assembly 1 is provided with a connecting terminal 5 for connecting and protecting a zero line, the grounding positioning assembly 1 is drilled at the positions of L=14 mm and L=25 mm at the left center point of the edge, the diameter of the hole is 12mm, the hole is used for installing the connecting terminal 5, the drilling operation of the hole is not required to adopt electric welding reserved holes or gas welding reserved holes, and the strength and the rigidity of the grounding positioning assembly 1 are ensured when the grounding positioning assembly 1 is pressed, so that the grounding positioning assembly is simple in structure and convenient for unified manufacturing of manufacturers, and has the advantage of low manufacturing cost;
The number of the connecting terminals 5 is consistent with that of the grounding noses of the electric equipment, the size is adaptive, the grounding connection of the connecting terminals 5 is used for grounding noses of the electric equipment, the wire outlet ends of the protective grounding wires of the secondary distribution electric box or the tail-end electric equipment can be connected with the connecting terminals 5 in a wired manner through the protective zero wire noses, so that the effective connection with the wire noses of the protective zero wire is improved, and when the grounding positioning assembly 1 is damaged, the grounding positioning assembly can be independently replaced, and the use is convenient;
The grounding positioning assembly 1 is provided with a bolt 3 at one end, the grounding positioning assembly 1 is connected in a mounting nut 6 on the grounding connection vertical plate 2 through the bolt 3 in a threaded manner, a stop block 8 is arranged at the joint between the bolt 3 and the grounding positioning assembly 1, a flat plate for mounting the connecting terminal 5 in the grounding positioning assembly 1 is separated from a screw through the stop block 8, the inner side wall of the mounting nut 6 is threaded, the thickness of the mounting nut 6 is 13mm-15mm, the mounting nut 6 protrudes out of two sides of the grounding connection vertical plate 2, the surface of one end is also in threaded connection with a butterfly nut 7, the diameter of the bolt 3 is matched with the inner diameters of the butterfly nut 7 and the mounting nut 6, the surface of the butterfly nut 7 is galvanized, and the nominal diameter of the butterfly nut 7 is matched with the mounting nut 6 and is 12mm;
The grounding connection vertical plate 2 and the grounding bottom plate 4 are vertically welded together in a T-shaped manner, the welding is in a double-sided welding mode, the grounding connection vertical plate 2 and the grounding bottom plate 4 are fixedly reinforced, pure copper galvanized materials are adopted for the grounding connection vertical plate 2, the thickness of the grounding connection vertical plate 2 is 8mm, the height of the grounding connection vertical plate is 70mm, a punching hole is adopted in the center position of a downward 20mm position of a top plate of the grounding connection vertical plate 2, then the grounding connection vertical plate is connected with the mounting nut 6, the grounding bottom plate 4 is 5mm in thickness and is 65mm in length, the grounding connection vertical plate 2 is vertically welded in double sides in the middle position, and welding is reserved at the bottom of the grounding connection vertical plate and a girder steel bar.
As shown in fig. 3, in the present utility model, the working steps of the device are as follows:
When the device is required to be used, after the binding of a high-rise building surface is completed, the grounding positioning assembly 1 of the device is firstly taken out, the grounding bottom plate 4 is effectively welded on the two sides of the main beam steel bar with the grounding connection vertical plate 2, the length direction of the device and the direction perpendicular to the main beam steel bar are kept as embedded parts, when the device is required to be used after the pouring of the floor is completed, the grounding positioning assembly 1 is installed, and the grounding nose of the grounding wire of the protection zero line of the secondary distribution box or the tail-end electric equipment is effectively connected with the connecting terminal 5, so that the lightning protection grounding effect is achieved;
When electrical equipment leaks electricity, current can flow to the ground through the device instead of a human body, so that the danger of electric shock is reduced, meanwhile, the device can enable the ground voltage of the housing of the electrical equipment to be close to the ground potential, reduce the electric shock risk when personnel contact the housing, provide a reference potential for electric equipment, help to keep the stability of an electric power system, and prevent interference and overvoltage.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.