CN-224217711-U - Lightning protection grounding device

CN224217711UCN 224217711 UCN224217711 UCN 224217711UCN-224217711-U

Abstract

The utility model belongs to the technical field of lightning protection grounding, and particularly relates to a lightning protection grounding device. A lightning protection grounding device is characterized by comprising a main body steel column, a steel reinforcement cage and main ribs, wherein the lower structure of the main body steel column is anchored on a concrete foundation and is used for receiving lightning current from the upper part of a building and conducting the lightning current downwards, the steel reinforcement cage is arranged in the foundation and comprises a plurality of vertical stirrups and surrounding horizontal stirrups, the plurality of vertical stirrups are fixedly connected with the lower structure of the main body steel column, the steel reinforcement cage is used as a foundation grounding electrode to disperse the lightning current and guide the lightning current to a foundation, and the main ribs are electrically connected with the steel reinforcement cage in the foundation and are used for effectively introducing and dispersing the lightning current conducted on the main body steel column to the whole steel reinforcement cage.

Inventors

LI HUIMIN
TU ZHENGXIAN
ZHENG JUNREN
QIU XINYU
PAN LEI
Zhuang Chenggun
WANG YIYU
WANG DUXIN

Assignees

广东电网能源发展有限公司

Dates

Publication Date: 20260508
Application Date: 20250422

Claims (10)

1. A lightning grounding device, comprising: A main body steel column, the lower structure of which is anchored to a concrete foundation, a down conductor main body for receiving and downwardly conducting lightning current from the upper part of the building; The steel reinforcement cage is arranged inside the foundation and comprises a plurality of vertical stirrups and surrounding horizontal stirrups, a structural framework of the foundation is formed together, the plurality of vertical stirrups are fixedly connected with the lower structure of the main body steel column, and the steel reinforcement cage is used as a foundation grounding electrode to disperse lightning current and guide the current to the foundation; And the main ribs are electrically connected with the reinforcement cage in the foundation and the main body steel columns, and are used for effectively introducing and dispersing the lightning current conducted on the main body steel columns to the whole reinforcement cage.
2. The lightning grounding apparatus of claim 1 further comprising an embedded connection board partially embedded within said foundation and partially exposed for providing connection points for an internal grounding system to be routed out of said foundation for connection to an outdoor artificial ground.
3. The lightning protection grounding device according to claim 2, wherein the embedded connection board is connected with the main rib in the foundation through at least one connection conductor and is used for guiding current collected on the main rib and the whole reinforcement cage to the embedded connection board so as to realize electrical communication of an internal grounding system and an external grounding system.
4. A lightning protection grounding device according to claim 3, wherein a waterproof sealing material is arranged at the connection part of the embedded connection plate and the connection conductor, and screw holes or welding terminals are reserved at the exposed end for quick connection with an external manual grounding system or detection equipment.
5. The lightning grounding apparatus of claim 1, further comprising a grounding test terminal embedded in the additional steel plate outside the main body steel column lower structure and electrically connected to the main rib for facilitating connection of a test device or a temporary grounding wire.
6. The lightning protection grounding apparatus according to claim 5, wherein a detachable protective cover plate is provided outside the grounding test terminal and is fixed to the additional steel plate for preventing the test terminal from being damaged by corrosion, collision or external force in a non-test state.
7. The lightning protection grounding apparatus of claim 6, wherein the grounding test terminal is disposed at a location convenient for inspection and maintenance, and wherein the grounding test terminal portion is of a waterproof construction for stable testing and ensuring good electrical connection even in a humid environment or outdoor conditions.
8. The lightning protection grounding device according to claim 1, wherein a plurality of horizontal auxiliary ribs are horizontally arranged on the upper portion of the main rib in a surrounding mode, and are respectively and electrically connected with the main rib and the main body steel column.
9. A lightning protection grounding device according to any one of claims 1 to 8 wherein the connection between the main body steel column and the main bars and the reinforcement cages is provided with an anti-corrosion coating.
10. The lightning grounding apparatus of claim 9 wherein a removable protective layer is provided on the exterior of the concrete foundation surface or the lower structure of the main body steel column for shielding and protecting the lightning grounding structure in daily use and for quick removal when service or testing is required.

Description

Lightning protection grounding device Technical Field The utility model belongs to the technical field of lightning protection grounding, and particularly relates to a lightning protection grounding device. Background With the continuous improvement of functions and heights of modern buildings, lightning protection technology is becoming more important. The existing lightning protection and grounding system often adopts a simple combination of a down-lead and a foundation grounding grid, and the existing lightning protection and grounding system is connected with a building foundation by relying on a single reinforcing steel bar or an externally added metal conductor in the construction process. Although lightning current can be led into the ground in the general environment by the mode, for high-rise or large-scale buildings, the amplitude and frequency of the lightning current can far exceed the traditional range, current dispersion is finished by simply relying on a conventional reinforcement cage or local welding, lightning protection standard requirements are difficult to meet, and the later maintenance and detection are inconvenient. The lightning protection down-lead is characterized in that the lightning protection down-lead is arranged on the ground, the lightning protection down-lead is connected with the ground, the lightning current is connected with the ground, the ground is connected with the ground, and the ground is connected with the ground. Disclosure of utility model The utility model aims to solve the defects and provides a lightning protection grounding device. According to the utility model, the main ribs are arranged between the main body steel column and the foundation, and a perfect electric path is formed between the main body steel column and the steel bar cage, so that the dispersion efficiency of lightning current is greatly improved, meanwhile, the cooperation between the embedded connecting plate and the connecting conductor not only simplifies the connection of an indoor and outdoor grounding system, but also provides a clear interface for subsequent detection or maintenance, and the defects of easy corrosion and easy loosening in a humid environment in the prior art are overcome by the specially designed test terminal and the protection structure thereof. A lightning grounding apparatus comprising: A main body steel column, the lower structure of which is anchored to a concrete foundation, a down conductor main body for receiving and downwardly conducting lightning current from the upper part of the building; The steel reinforcement cage is arranged inside the foundation and comprises a plurality of vertical stirrups and surrounding horizontal stirrups, a structural framework of the foundation is formed together, the plurality of vertical stirrups are fixedly connected with the lower structure of the main body steel column, and the steel reinforcement cage is used as a foundation grounding electrode to disperse lightning current and guide the current to the foundation; And the main ribs are electrically connected with the reinforcement cage in the foundation and the main body steel columns, and are used for effectively introducing and dispersing the lightning current conducted on the main body steel columns to the whole reinforcement cage. Further, the lightning protection grounding device further comprises an embedded connecting plate, wherein the embedded connecting plate is partially embedded in the foundation and partially exposed to provide a connecting point for leading out an internal grounding system to the outside of the foundation so as to be connected to an outdoor manual grounding body. Further, the embedded connecting plate is connected with the main rib in the foundation through at least one connecting conductor and is used for guiding current collected on the main rib and the whole reinforcement cage to the embedded connecting plate so as to realize the electrical communication of the internal and external grounding system. Further, a waterproof sealing material is arranged at the joint of the embedded connecting plate and the connecting conductor, and a screw hole or a welding terminal is reserved at the exposed end and is used for being quickly connected with an external manual grounding system or detection equipment. Further, the lightning protection grounding device further comprises a grounding test terminal, wherein the grounding test terminal is pre-buried on an additional steel plate outside the lower structure of the main body steel column and is electrically connected with the main rib, and the grounding test terminal is used for conveniently connecting test equipment or a temporary grounding wire. Further, the outside of the ground test terminal is provided with a detachable protective cover plate which is fixed on the additional steel plate and used for preventing the test terminal from being damaged by corrosion, collision or external force in a n