JP2595462Y2 - Grounding equipment for buildings - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building grounding device suitable for grounding buildings such as intelligent buildings.

[0002]

2. Description of the Related Art As a grounding method for a building, there are known a single grounding method in which each device is grounded to the ground and a common grounding method in which grounding is carried out collectively via structures such as reinforcing bars and steel frames in a building. ing.

[0003]

[Problems to be Solved by the Invention] The above-mentioned conventional grounding technology has the following problems. <B> The single grounding method requires a large number of grounding electrodes and grounding wires. <B> In the case of the common grounding method, if all the grounds are shared, anxiety remains, and in addition, the grounding resistance value of the building and the electrical continuity of the structure have not been sufficiently verified.

[0004]

[Object of the present invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a building grounding device capable of easily switching a grounding method according to a purpose of use. It is in.

[0005]

[Means for Solving the Problems] The present invention provides an insulating substrate.
Attach a plurality of ground-side conductive plates , a common ground-side conductive plate, and a ground-side conductive plate that is grounded to the ground on one surface of the panel,
Intersects with a plurality of grounding equipment side conductive plates on the other surface of the base
The connection plate mounting manner, the connecting plate and the apparatus-side conductive plate for each grounding the electrically connectable in circuit member through said base, and electrically connecting the connection plate to the ground-side conductive plate shared,
Ground-side conductive plate grounded to the ground and equipment-side continuity for each ground
This is a building grounding device in which a board and a switching board can be electrically connected. Further, the present invention is the grounding device for a building, wherein the common grounding side conductive plate is grounded to a conductive structure such as a reinforcing bar or a steel frame of the building.

[0006]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings.

<A> Grounding Device FIG. 1 is a plan view of the grounding device, and FIG. 2 is a cross-sectional view thereof. Reference numeral 1 denotes a base made of an insulating material such as a bake material. On the front side of the base 1, a structure terminal 2 and a plurality of sets of ground terminals 3,
4 and 5 are arranged, and further, each terminal 2
A connecting plate 6 is arranged in a transverse direction of the connecting plate 5. The number of the grounding terminals 3, 4, 5 is arbitrarily set according to the grounding resistance.

<B> Terminal Structure Each of the terminals 2 to 5 includes a pair of device-side conductive plates 2a, 3a, 4a, 5a, and a ground-side conductive plate 2b, 3
b, 4b, 5b, and switching plates 2c, 3c, 4c, 5c for switching conduction between each pair of these conduction plates. The device-side conductive plates 2a, 3a, 4a, and 5a are shared devices.
Device-side conductive plate 2a, and ground-side device-side conductive plates 3a, 4a,
5a, and the device-side conductive plates 3a, 4a for grounding.
5a is connected to the ground terminals 3, 4, 5. Also, contact
The ground-side conductive plates 2b, 3b, 4b, and 5b are shared ground-side conductive plates.
Passing plate 2b, ground-side conductive plates 3b, 4 grounded to ground
b, 5b, and the common ground-side conductive plate 2b
Connected to a structure 7 such as a steel frame of a building, and grounded to the ground
The ground side conductive plates 3b, 4b, 5b are independently connected to the ground.
It is. One end of each switching plate 2c, 3c, 4c, 5c is pivotally supported by a bolt on each ground-side conductive plate 2b, 3b, 4b, 5b, and is connected to the free end of each switching plate 2c, 3c, 4c, 5c. An opening is provided for fitting a bolt implanted at the end of each of the ground-side conductive plates 2b, 3b, 4b, 5b from the lateral direction. The conduction of the terminals 2 to 5 is switched by the intermittent operation of the switching plates 2c, 3c, 4c, and 5c.

<C> Connection Plate The connection plate 6 is formed of a long conductive material for individually connecting the grounding terminals 2 to 5 to the structural body terminal 2 via the conduction bolts 8, and has a plate surface. Are provided with a plurality of female threads at screw positions of the conduction bolt 8. Therefore, the terminals 2 to 5 and the connection plate 6 are not short-circuited unless the conduction bolt 8 is screwed.

[0010]

Next, an example of use of the grounding device will be described.

<A> Resistance Measurement When it is desired to measure the ground resistance value or the structure resistance value of the structure 7, the switching plate 2 c of the structure terminal 2 in FIG.
In the state separated from a, measurement is performed by measuring the ground-side conductive plate 2b as a measurement terminal. Similarly, when measuring the ground resistance of the ground terminals 3 to 5 on the ground side, the switching plates 3 c to 5
In a state where c is separated, a ground resistance meter is connected to the ground side conductive plates 3b to 5b for measurement.

<B> Individual grounding For example, when it is desired to ground the grounding terminal 4 directly to the ground, as shown in FIG. 1, the switching plate 4c conducts the conduction between the two conductive plates 4a and 4b, and then connects the short-circuit bolt 8 It is only necessary to remove the connection plate 6 and make the connection between the connection plate 6 and the ground terminal 4 insulated. The same applies to the single grounding of the other grounding terminals 3 and 5.

<C> Shared grounding When it is desired to ground only through the structure 7, the switching terminals 3 c to 5 c of the grounding terminals 3 to 5 are removed, and the grounding terminals 3 to 5 and the connection plate 6 are removed. Are connected by a short-circuit bolt 8. By screwing the short-circuit bolt 8, the ground 7 can be grounded from each of the grounding terminals 3 to 5 through the connection plate 6.

<D> Dual-use grounding When it is desired to ground through the structural body 7 while leaving the single ground, each of the conductive plates 3a3b, 4a4b, and 5a5b is connected by the switching plates 3c to 5c, and The terminals 3 to 5 and the connection plate 6 are connected by short-circuit bolts 8.

<E> Switching Dual Grounding Switching between the single grounding and the common grounding is referred to as switching dual grounding.

[0016]

[Effects of the Invention] The present invention is as described above, and the following effects can be obtained.

<A> It is possible to arbitrarily switch between single grounding, common grounding and dual-purpose grounding according to the purpose of use.

<B> The ground resistance value and the ground resistance value of the structure can be easily and accurately measured.

<C> The switching of the grounding method can be performed at one place, and maintenance and management are easy.

[Brief description of the drawings]

FIG. 1 is a plan view of a grounding device.

FIG. 2 is a sectional view taken along the line II-II in FIG.

Claims (2)

(57) [Scope of request for utility model registration] 1. A plurality of grounding devices on one surface of an insulating base.
Side ground plate , a common ground side conductive plate and a ground side conductive plate to be grounded to the ground, and a plurality of grounding
Attach the connection plate so as to cross the device-side conductive plate, and a connection plate and device-side conductive plate for each grounding the electrically connectable in circuit member through said base, and a connecting plate to the ground-side conductive plate of shared A grounding device for buildings, wherein a grounding-side conductive plate grounded to the ground and each grounding-side device-side conductive plate are electrically connected by a switching plate. 2. The building grounding device according to claim 1, wherein the common grounding side conductive plate is grounded to a conductive structure such as a reinforcing bar or a steel frame of the building. Grounding device.