KR20200030333A - Modul type concrete grounding block and method for manufacturing the same - Google Patents

Abstract

One aspect of the present invention relates to a concrete grounding block, which is buried in the ground of buildings or electrical structures to protect people and equipment from lightning. The concrete grounding block comprises: a concrete grounding body (10) cured in a block of prescribed shape to form a passage (11a) in the center of a concrete containing at least a conductive material; a metal grounding body (20) integrally buried inside the concrete grounding body (10) to radiate ground current to the ground; and a ground connection line (30) connected and exposed to the center of the metal grounding body (20) and the concrete grounding body (1) to induce electricity from the buildings or electric structures.

Description

Modular type concrete grounding block and method for manufacturing the same}

The present invention relates to a concrete ground block that is embedded in the ground of a building or electrical structure to protect people or equipment from thunderbolt, and more specifically, it is modularized in a way that is immediately buried in the field without using a separate formwork for excellent construction. In addition, the present invention relates to a modular concrete ground block and a method for manufacturing the same, which is improved to a structure that can significantly reduce the amount of conductive concrete used while maximizing grounding efficiency.

Grounding is a method of realizing an electrical connection of a grounded object such as electricity, communication facilities, buildings, etc. to a ground having a low resistance by establishing an electrical terminal on the ground, thereby realizing the potential of the grounded object and the equipotential or minimum potential difference.

The purpose of grounding is not only to ensure the safety of human and livestock, but also to prevent damage and stable operation of electricity, electronics, communication, and various control devices. In order to satisfy this need, the characteristics of the installation equipment, the geological characteristics of the construction site, and the external environment must be considered from the initial stage of grounding design. That is, the optimum grounding system that is safe and economical should be selected through a reliable design, and the actual grounding characteristics such as the grounding method corresponding to the reference grounding resistance value and the ground holding resistance value, and the selection of grounding material should be reflected.

In recent years, a ground block modularized with concrete is preferred so that it can be buried in a dug ground without using a separate formwork to improve workability. Representatively, the Republic of Korea Utility Model Publication No. 20-2010-0004764 (name of the draft: concrete structure having a grounding device) is disclosed.

According to the disclosed literature, the use of general concrete and conductive concrete together is improved to have the same grounding performance as the existing concrete grounding module, thereby reducing the use of relatively expensive conductive concrete.

Here, as the center of the concrete grounding module, it is cured with ordinary concrete, and conductive concrete is cured on the outside of the concrete, and a metal grounding member is embedded therebetween. Therefore, since it is necessary to insert the cured general concrete and the conductive concrete or to divide the curing process into primary and secondary, there is a problem that the cost of the formwork or mold increases, resulting in an increase in unit cost.

Republic of Korea Utility Model Publication No. 20-2010-0004764 (name of the draft: concrete structure with grounding device)

The present invention was created to more actively solve the above problems, and forms a hollow grounding body in a block unit with only conductive concrete, and a metal that emits grounding current into the ground inside the grounding body. Modular concrete grounding block and its manufacturing by adopting a structure in which the grounding body is integrally embedded to improve manufacturing so that only a single curing process can be performed through a single formwork or mold can improve manufacturing performance and significantly lower manufacturing cost. The purpose is to provide a method.

In order to achieve the above problem, the configuration of the modular concrete ground block proposed in one aspect of the present invention is as follows.

The above modular concrete grounding block is a concrete grounding block that is embedded in the ground of a building or electrical structure to protect life and equipment by lightning: concrete contacting at least concrete containing a conductive material is cured into a block with a passageway in the center. retard; A metal grounding body that is integrally embedded in the concrete grounding body and radiates grounding current to the ground; It is characterized in that it comprises a; a metal grounding body and a ground connecting wire that is connected to be exposed to the center of the concrete adhesive and induces electricity with a building or electrical structure.

At this time, the metal grounding body according to the present invention is composed of a wire mesh, wires, or pipes alone or in combination, and the wire mesh, wires, and pipes are characterized in that they are formed in a circular or spiral shape so that the emissivity of the ground current is increased.

The method of manufacturing a modular concrete ground block proposed in another aspect of the present invention is as follows.

The above method of manufacturing a modular concrete grounding block is a method of manufacturing a concrete grounding block that is embedded in the ground of a building or electrical structure and protects people and equipment from lightning. Stage 1; A step 2 of preparing a formwork having a predetermined shape surrounding the middle part and a middle part providing a passage in the center; Three steps of forming a metal grounding body composed of a wire mesh, an electric wire, or a pipe, alone or in a complex shape, in a circular or spiral shape; And inserting a metal grounding body between the middle and the formwork, and then pouring and curing the concrete raw material.

According to the present invention having the above-described configuration, the following effects are provided.

First, it is possible to apply it regardless of the characteristics and size of the ground with the constructability by modularizing it in a field-filled manner without using a separate formwork.

Second, the hollow concrete grounding body is formed only in conductive concrete in block units, and a structure in which a metal grounding body is integrally embedded in the grounding body is adopted to form a single curing process through a single formwork or mold. It can be manufactured in order to lower the unit cost.

Third, as the metal grounding body is composed of a wire mesh, a wire, and a pipe, and formed in a circular or spiral shape, the emissivity of the grounding current is improved to maximize the grounding efficiency.

1 is a block diagram showing the entire ground block according to the present invention.
2 and 3 is a block diagram showing a concrete ground of the ground block according to the present invention.
Figure 4 is a block diagram showing a metal grounding body of the ground block according to the present invention.
5 and 6 is a block diagram showing a modification of the ground block according to the present invention.
Figure 7 is a flow chart showing the whole method of manufacturing a ground block according to the present invention.
8 and 9 is a block diagram showing the manufacturing process of the ground block according to the present invention.
10 is a use state diagram showing the construction of the ground block according to the present invention.

Hereinafter, with reference to the accompanying drawings, the configuration of the present invention and the effects and effects thereof will be collectively described.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the person having the scope of the invention, and the present invention is only defined by the scope of the claims. And throughout the specification, the same reference numerals refer to the same components.

One aspect of the present invention relates to a concrete ground block that is embedded in the ground of a building or electrical structure to protect life or equipment by thunderbolt, as shown in FIG. 1, a concrete ground body 10, a metal ground body 20, and a ground connection line ( It is a modular concrete grounding block with 30) as its main component.

The modular concrete grounding block of the present invention is a hollow concrete-type concrete grounding body 10 formed only in conductive concrete in block units, and the metal grounding body 20 is integrally embedded in the concrete grounding body 10. The main point is to adopt a structure so that it can be manufactured in a single curing process through a set of dies or molds.

As for the concrete grounding body 10, concrete containing at least a conductive material is cured into blocks of a predetermined shape, as shown in FIG. That is, conductive powders such as graphite, aluminum, and copper are mixed with mortar mixed with cement, gravel, and water.

The conductive concrete is injected into the formwork 15 with the middle ground 11 interposed with the metal grounding body 20 as shown in FIG. 9, and is cured in block units provided with a passage 10a in the center. Here, the passage 10a provides a path for exposing the connection line 30 to the ground while inducing the reduction of the conductive concrete raw material.

At this time, the concrete grounding body 10 may be formed in a circular shape (FIG. 2A) or a square shape (FIG. 2B) as shown in FIG. 2, and the protrusions 10b and grooves 10c engaged with each other at the upper and lower ends as shown in FIG. Can form. The protrusions 10b and the grooves 10c are respectively formed at upper and lower positions facing each other to induce stable lamination according to the height of the buried ground to be grounded.

In addition, the concrete grounding body 10 may further form a plurality of protrusions 10d that increase the contact area with the ground to the outer surface as shown in FIG. 3. The protrusion 10d may partially protrude in a pattern that is continuous on the outer surface as shown in FIG. 3A, and may protrude entirely in a continuous pattern as in FIG. 3B. In any case, the purpose of improving the grounding efficiency by increasing the contact area between the concrete grounding body 10 and the ground is the same.

The metal grounding body 20 is integrally embedded in the above concrete grounding body 10 as shown in FIG. 1. That is, the metal grounding body 20 is integrally cured while being input to the formwork 15 as shown in FIG. 9 to radiate the ground current to the ground.

The metal grounding body 20 is composed of a wire mesh 21 or an electric wire 22 and a pipe 23 made of an alloy of aluminum, copper, and stainless steel as shown in FIG. 4. Here, the wire mesh 21, the wire 22, and the pipe 23 are preferably formed in a circular or spiral shape so that the emissivity of the ground current is increased.

The wire mesh 21 is made of a fabric in which horizontal and vertical iron wires are woven into a mesh shape, cut to a size corresponding to the concrete grounding body 10, and then cut into a form as shown in FIG. To cure.

The wire 22 twisted in multiple strands or the hollow pipe 23 is made of a string, and likewise, after cutting to a length corresponding to the concrete ground 10, the formwork is wound in a spiral shape as shown in FIG. 4B (15 ) To cure it integrally.

Of course, the wire mesh 21 can also be cured in a spirally wound state, such as the wire 22 or the pipe 23, and if necessary, the wire mesh 21, the wire 22, and the pipe 23 may be composed of two or more complexes. You may.

The ground connection line 30 is connected to be exposed to the center of the metal grounding body 20 and the concrete contacting agent 10 as shown in FIG. 1 to induce electricity to a building or an electric structure. That is, it is inputted to be exposed to the outside of the center of the formwork 15 in a state where it is connected to one end of the metal grounding body 20 as a subsidiary material.

Here, when the metal grounding body 20 is composed of the electric wire 22, it is preferable to omit the separate ground connecting wire 30, and extend the electric wire 22 formed in a spiral to be used as the ground connecting wire 30.

On the other hand, the grounding block of the present invention, as shown in FIGS. 5 and 6, the metal grounding body 20 is formed in a circular or spiral shape, and the auxiliary body 40 maintaining the shape formed in the state input to the formwork 15 It is more configurable.

The auxiliary body 40 is made of an aluminum, copper, stainless steel alloy of the same as the metal grounding body 20, for the wire mesh 21 as shown in FIG. 5 and for the wire 22 and the pipe 23 as shown in FIG. Can be distinguished.

That is, the auxiliary body 40 is basically a plurality of skeleton frames 41 having a size and shape embedded in the concrete grounding body 10, and a horizontal connecting frame 42 connecting the skeleton frames 41 to a single body ).

Auxiliary body 40 for the wire mesh 21 is made of only a skeleton frame 41 and a connecting frame 42 as shown in FIG. 5 to induce the wire mesh 21 to be wrapped on the outer surface of the skeleton frame 41, and the wire mesh 21 In this wrapped state, it is guided to bind with a wire to maintain its shape.

At this time, the electric wire 22 and the auxiliary body 40 for the pipe 23 are arranged in a spiral pitch on the outer surface of the skeletal frame 41, and a clip 45 for gripping the electric wire 22 and the pipe 23 is further provided. It is composed. That is, if the wire-like wire 22 or the pipe 23 is sequentially inserted from the clip 45 positioned at the lower end of the skeletal frame 41, it can be easily converted into a spiral shape.

Another aspect of the present invention relates to a method of manufacturing a concrete ground block that is embedded in the ground of a building or electrical structure to protect life or equipment by thunderbolt, and steps 1 (S10) to 4 (S40) as shown in FIG. 7. It is a method of manufacturing a modular concrete grounding block through sequentially.

Hereinafter, the components mentioned in the process of manufacturing the ground block of the present invention are the same as those described above, so a separate description will be omitted, and a description will be given of a continuous process from manufacturing to construction regardless of the steps.

First, the worker prepares a concrete raw material in which a mortar and a conductive material are mixed. That is, a concrete raw material in which conductive powders such as graphite, aluminum, and copper are mixed with mortar mixed with cement, gravel, and water is prepared.

Along with this, as shown in FIG. 8, a core 11 for providing a passage 10a in the center and a formwork 15 having a predetermined shape surrounding the upper core 11 are prepared. The core 11 and the formwork 15 may be formed in a circular or square shape as shown in FIG. 2, and may be configured to form protrusions 10b and grooves 10c that mesh with each other at the top and bottom.

Subsequently, the metal grounding body 20 composed of the wire mesh 21, the wire 22, and the pipe 23 alone or in combination is formed in a circular or spiral shape as shown in FIG. 4. According to the metal grounding body 20 configured here, it is preferable to use the wire mesh 21 as shown in FIG. 5 and the auxiliary body 40 for the wire 22 and the pipe 23 as shown in FIG. 6.

Finally, the metal grounding body 20 is inserted between the core 11 and the formwork 15 as shown in FIG. 9, and then the prepared concrete raw material is injected to cure it. Here, the ground connection line 30 is cured by injecting the concrete raw material in a state exposed to the center of the metal grounding body 20 and the concrete adhesive 10.

The completed modular concrete ground block is transported to a construction site and stacked in plural on the ground to be broken as shown in FIG. 10. Along with this, the ground connection line 30 exposed in the passage 10a is pulled out to the ground to connect with a building or an electrical structure. Then, after filling the outside of the ground block with soil, the soil 10 is also filled with soil to complete the construction.

As described above, first, the present invention has an effect that can be applied regardless of the characteristics and size of the ground along with the constructability by modularizing in a field-filled manner without using a separate formwork. In addition, the hollow concrete grounding body is formed only in conductive concrete in block units, and a structure in which a metallic grounding body is embedded in the grounding body is integrated into a single curing process through a single formwork or mold. It can be manufactured as an effect that can lower the unit cost. In particular, as the metal grounding body is composed of a wire mesh, an electric wire, and a pipe, and formed in a circular or spiral shape, the emissivity of the grounding current is improved, thereby maximizing grounding efficiency.

10: grounding body 10a: passage
10b: protrusion 10c: groove
10d: projection 11: core
15: formwork 20: metal grounding body
21: wire 22: wire
23: pipe 30: ground connection wire
40: auxiliary 41: skeleton frame
42: connecting frame 45: clip

Claims (3)

In concrete ground blocks that are embedded in the ground of buildings or electrical structures to protect people and equipment from lightning strikes:
A concrete grounding body 10 cured with a block provided with a passage 10a to the center of the concrete containing at least a conductive material;
A metal grounding body 20 which is integrally buried inside the concrete grounding body 10 to radiate ground current to the ground;
A ground connection line 30 connected to be exposed to the center of the metal grounding body 20 and the concrete adhesive agent 10 to induce electricity with a building or an electrical structure;
Modular concrete ground block, characterized in that comprises a.
According to claim 1,
The metal grounding body 20 is composed of a wire mesh 21, an electric wire 22, or a pipe 23 alone or in combination,
The upper wire mesh 21, the wire 22, the pipe 23 is a modular concrete ground block, characterized in that formed in a circular or spiral so that the emissivity of the ground current is increased.
In a method of manufacturing a concrete ground block that is embedded in the ground of a building or electrical structure and protects people and equipment from lightning strikes:
Step 1 (S10) of preparing a concrete raw material mixed with a mortar and a conductive material;
A second step (S20) of preparing a core 11 for providing a passage 10a in the center and a formwork 15 of a predetermined shape surrounding the upper core 11;
A three-step step S30 of forming a metal grounding body 20 composed of a wire mesh 21, an electric wire 22, and a pipe 23 alone or in a complex shape in a circular or spiral shape;
A fourth step of inserting a metal grounding body 20 between the core 11 and the formwork 15 and then curing the concrete by injecting it;
Method of manufacturing a modular concrete ground block comprising a.

Images