Lightning protection grounding device for building construction

Abstract

The utility model relates to the technical field of lightning protection and grounding, and discloses a lightning protection and grounding device for building construction, which comprises a pile foundation steel bar, an equipotential box, an eave wall and a building outer wall, a plurality of connecting steel bars are arranged on the outer surface of the pile foundation steel bar, and a connecting conductor is welded on one of the connecting steel bars. An anti-floating bottom plate is arranged in the middle of the outer surface of the pile foundation steel bar, bottom plate steel bars are arranged in the anti-floating bottom plate, a plurality of supports are installed on the outer side of the upper end of the eave wall, a flash connection belt is jointly welded and installed between the upper ends of the supports, and a lightning protection down lead is welded and installed at the lower end of the flash connection belt. And the lower end of the lightning protection downlead is welded with the upper end of the pile foundation steel bar. According to the lightning protection grounding device for building construction, the grounding body, the flash connection belt, the equipotential box and the grounding test point are arranged, so that the lightning protection grounding effect can be enhanced, the safety can be improved, and the lightning protection grounding device is suitable for being widely used.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection and grounding, in particular to a lightning protection and grounding device for building construction. Background Art

[0002] With the continuous development of the economy, high-rise buildings are being built continuously. In high-rise buildings, equipotential bonding has become an important measure for the safe use of high-rise buildings. Therefore, it is necessary to ensure the construction quality of equipotential bonding of high-rise buildings, ensure that the buildings can be used safely, and ensure that the lives and property of the country and the people are not lost. Therefore, lightning protection grounding devices will be installed on the buildings. During the use of existing lightning protection grounding devices, the lightning protection grounding effect is poor, resulting in low lightning protection effect, affecting the lightning protection effect, and posing safety hazards. In addition, the construction quality and construction efficiency of equipotential bonding construction are low, and it is not convenient to conduct grounding resistance testing, which reduces the practicability of lightning protection grounding devices. Therefore, we introduce a lightning protection grounding device for building construction. Utility Model Content

[0003] The main purpose of the utility model is to provide a lightning protection grounding device for building construction, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A lightning protection and grounding device for construction includes pile foundation steel bars, an equipotential box, an eave wall and an outer wall of a building, wherein a plurality of connecting steel bars are arranged on the outer surface of the pile foundation steel bars, a connecting conductor is welded and installed on one of the connecting steel bars, an anti-floating bottom plate is arranged in the middle of the outer surface of the pile foundation steel bars, a bottom plate steel bar is arranged inside the anti-floating bottom plate, a plurality of brackets are installed on the outer side of the upper end of the eave wall, a flash connection belt is welded and installed between the upper ends of the plurality of brackets, a lightning protection down conductor is welded and installed on the lower end of the flash connection belt, and the lower end of the lightning protection down conductor is welded and connected to the upper end of the pile foundation steel bars.

[0006] Preferably, an external annular conductor is arranged inside the box wall of the equipotential box, three equipotential connecting terminal boards are arranged inside the equipotential box, an internal annular conductor is commonly connected between the three equipotential connecting terminal boards, steel bar connecting points are arranged between the three equipotential connecting terminal boards and the external annular conductor, and a grounding body is arranged on the left part of the upper equipotential connecting terminal board.

[0007] Preferably, an additional grounding body is provided on the upper part of the equipotential bonding terminal board on the left, an SPD is connected to the lower part of the equipotential bonding terminal board on the left, a communication line is provided on the lower side of the SPD, an external conductive part is provided on the upper part of the equipotential bonding terminal board on the right, and an outdoor grounding body is provided on the lower part of the equipotential bonding terminal board on the right.

[0008] Preferably, the equipotential box is connected to a plurality of equipotential connection terminal boxes, and an equipotential connection terminal box is installed in each toilet, elevator foundation pit and electrical shaft with a power distribution device on that floor, and the lightning protection down conductor is marked with yellow paint.

[0009] Preferably, lightning protection steel bars are provided inside the outer wall of the building, a test point line box is provided inside the outer wall of the building, a cover plate is installed on the right end of the test point line box, a lead-out flat steel is welded and installed on the upper right side of the lightning protection steel bars, a basic flat steel is provided between the test point line box and the outer wall of the building, and four connecting bolts are installed between the upper outer surface of the basic flat steel and the lower outer surface of the lead-out flat steel.

[0010] Preferably, the upper end of the lightning protection up-lead steel bar is welded to the lower end of the lightning protection down-lead, the test point wire box is embedded on the outer wall of the building, and the four connecting bolts are all located inside the test point wire box.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, a lightning protection grounding device for building construction is formed by using pile foundation steel bars as natural grounding electrodes, and then the grounding body and the flash connection strip are reliably welded to form a down conductor through a lightning protection down conductor, and then the terminal board of the equipotential box is connected to the equipotential connection terminal box arranged in the room where the facilities to be connected are located, so as to realize the total equipotential connection of the entire building, improve the construction quality and construction efficiency of the equipotential connection construction, meet the requirements of preventing the intrusion of lightning waves caused by direct lightning and side lightning, and strengthen the lightning protection grounding effect of the entire lightning protection grounding device, so that the lightning protection function and lightning protection effect are strong, and the safety is improved. Finally, the grounding resistance test can be carried out through the grounding test point, and the practicality of the lightning protection grounding device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a top view of the overall structure of a grounding body of a lightning protection grounding device for construction of the utility model;

[0014] Figure 2 This is a schematic diagram of the connection between the grounding body and the lightning connection belt of a lightning protection grounding device for building construction according to the utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of an equipotential box of a lightning protection and grounding device for building construction according to the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the overall structure of a grounding test point of a lightning protection grounding device for building construction.

[0017] In the figure: 1. Pile foundation steel bars; 2. Connecting steel bars; 3. Connecting conductors; 4. Anti-floating bottom plate; 5. Bottom plate steel bars; 6. Equipotential box; 7. Eaves wall; 8. External wall of the building; 61. External ring conductor; 62. Equipotential bonding terminal board; 63. Internal ring conductor; 64. Steel bar connection point; 65. Grounding electrode; 66. Additional grounding electrode; 67. SPD; 68. Communication line; 69. External conductive part; 610. Outdoor grounding electrode; 71. Bracket; 72. Flash connection belt; 73. Lightning protection down conductor; 81. Lightning protection up conductor; 82. Test point box; 83. Cover plate; 84. Lead-out flat steel; 85. Foundation flat steel; 86. Connecting bolts. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-4 , the utility model provides a technical solution:

[0020] A lightning protection and grounding device for building construction comprises a pile foundation steel bar 1, an equipotential box 6, an eave wall 7 and an outer wall 8 of a building, wherein a plurality of connecting steel bars 2 are arranged on the outer surface of the pile foundation steel bar 1, a connecting conductor 3 is welded and installed on one of the connecting steel bars 2, an anti-floating bottom plate 4 is arranged in the middle of the outer surface of the pile foundation steel bar 1, a bottom plate steel bar 5 is arranged inside the anti-floating bottom plate 4, a plurality of brackets 71 are installed on the outer side of the upper end of the eave wall 7, a flash connection belt 72 is welded and installed between the upper ends of the plurality of brackets 71, a lightning protection down conductor 73 is welded and installed at the lower end of the flash connection belt 72, and the lower end of the lightning protection down conductor 73 is welded and connected to the upper end of the pile foundation steel bar 1.

[0021] In this embodiment, an external annular conductor 61 is arranged inside the box wall of the equipotential box 6, three equipotential connection terminal boards 62 are arranged inside the equipotential box 6, an internal annular conductor 63 is commonly connected between the three equipotential connection terminal boards 62, a steel bar connection point 64 is arranged between the three equipotential connection terminal boards 62 and the external annular conductor 61, a grounding body 65 is arranged on the left side of the upper equipotential connection terminal board 62; an additional grounding body 66 is arranged on the upper part of the left equipotential connection terminal board 62, and an SPD 67 is connected to the lower part of the left equipotential connection terminal board 62. A communication line 68 is arranged at the lower side of SPD67, an external conductive part 69 is arranged at the upper part of the right equipotential connection terminal board 62, and an outdoor grounding body 610 is arranged at the lower part of the right equipotential connection terminal board 62; the equipotential box 6 is connected to a plurality of equipotential connection terminal boxes, and equipotential connection terminal boxes are installed in each toilet, elevator foundation pit and electrical shaft with power distribution device on that floor, so as to realize the total equipotential connection of the whole building. The lightning protection down conductor 73 is marked with yellow paint, which can serve as a warning and facilitate the search for the lightning protection down conductor 73 for inspection and maintenance.

[0022] In this embodiment, a lightning protection lead-in steel bar 81 is arranged inside the outer wall 8 of the building, a test point line box 82 is arranged inside the outer wall 8 of the building, a cover plate 83 is installed on the right end of the test point line box 82, a lead-out flat steel 84 is welded and installed on the upper right part of the lightning protection lead-in steel bar 81, a basic flat steel 85 is arranged between the test point line box 82 and the outer wall 8 of the building, and four connecting bolts 86 are installed between the upper outer surface of the basic flat steel 85 and the lower outer surface of the lead-out flat steel 84; the upper end of the lightning protection lead-in steel bar 81 is welded and connected to the lower end of the lightning protection down conductor 73, the test point line box 82 is embedded in the outer wall 8 of the building, and the four connecting bolts 86 are all located inside the test point line box 82, which is convenient for detecting the test point, and the flash connection belt 72 is made of φ10 hot-dip galvanized round steel.

[0023] It should be noted that the utility model is a lightning protection grounding device for construction. During use, the pile foundation steel bar 1 is first used as a natural grounding electrode to form a grounding body. The two diagonal steel bars in the reinforced concrete column of the building and the main steel bars are used as down conductors. The down conductors are welded to the lightning strip 72 through the lightning protection down conductor 73. The lower end of the down conductor is reliably welded to the bottom plate foundation beam and the steel bars in the pile foundation to form an electrical path. When there is no foundation beam, the main bars in each independent foundation are connected with hot-dip galvanized flat iron. The four corners of the building are provided with grounding test points at a distance of 0.5m from the outdoor ground. A test point box 82 is installed in the test point, which can be used to test the grounding resistance. If it is unqualified, an artificial grounding electrode is added. This project uses galvanized angle steel as an artificial grounding body. Each group of artificial grounding bodies is provided with three galvanized angle steels, which are arranged in a straight line with a spacing of five meters. After each group is set up, the grounding resistance is tested. If it is unqualified, artificial grounding bodies will be added until the grounding resistance test is qualified. Starting from the total equipotential box 6, along the outer wall foundation of the underground layer, the internal ring conductor is concealed, and an equipotential connection terminal box is installed in the room where the facilities to be connected are located. The facilities to be connected are connected to the equipotential connection terminal board 62 in the total equipotential box 6 to achieve the total equipotential connection of the entire building. The total equipotential connection terminal board 62 is also connected to the steel bars in the nearby structure, which improves the construction quality and efficiency of the equipotential connection construction, so that the entire lightning protection grounding device can meet the requirements of preventing the intrusion of direct lightning and side lightning waves, and the lightning protection grounding effect of the entire lightning protection grounding device can be strengthened, so that the lightning protection function and lightning protection effect are strong, the safety of the building is improved, and the practicality of the lightning protection grounding device is improved.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lightning protection grounding device for building construction, comprising pile foundation steel bars (1), an equipotential box (6), an eaves wall (7) and an outer wall of a building (8), characterized in that: The outer surface of the pile foundation steel bar (1) is provided with a plurality of connecting steel bars (2), one of which is welded with a connecting conductor (3), an anti-floating bottom plate (4) is provided in the middle of the outer surface of the pile foundation steel bar (1), and a bottom plate steel bar (5) is provided inside the anti-floating bottom plate (4), a plurality of brackets (71) are installed on the outer side of the upper end of the eaves wall (7), a flash connection belt (72) is welded between the upper ends of the plurality of brackets (71), a lightning protection down conductor (73) is welded at the lower end of the lightning protection down conductor (73), and the lower end of the lightning protection down conductor (73) is welded and connected to the upper end of the pile foundation steel bar (1).

2. A lightning protection grounding device for construction according to claim 1, characterized in that: An external annular conductor (61) is arranged inside the box wall of the equipotential box (6), three equipotential connection terminal boards (62) are arranged inside the equipotential box (6), an internal annular conductor (63) is commonly connected between the three equipotential connection terminal boards (62), a steel bar connection point (64) is arranged between the three equipotential connection terminal boards (62) and the external annular conductor (61), and a grounding body (65) is arranged on the left side of the upper equipotential connection terminal board (62).

3. A lightning protection grounding device for construction according to claim 2, characterized in that: An additional grounding body (66) is arranged on the upper part of the equipotential bonding terminal board (62) on the left side, an SPD (67) is connected to the lower part of the equipotential bonding terminal board (62) on the left side, a communication line (68) is arranged on the lower side of the SPD (67), an external conductive part (69) is arranged on the upper part of the equipotential bonding terminal board (62) on the right side, and an outdoor grounding body (610) is arranged on the lower part of the equipotential bonding terminal board (62) on the right side.

4. A lightning protection grounding device for construction according to claim 3, characterized in that: The equipotential box (6) is connected to a plurality of equipotential connection terminal boxes, and an equipotential connection terminal box is installed in each toilet, elevator foundation pit and electrical shaft with a power distribution device on that floor. The lightning protection down conductor (73) is marked with yellow paint.

5. A lightning protection grounding device for construction according to claim 1, characterized in that: A lightning protection lead-in steel bar (81) is arranged inside the building outer wall (8), a test point line box (82) is arranged inside the building outer wall (8), a cover plate (83) is installed at the right end of the test point line box (82), a lead-out flat steel (84) is welded and installed on the upper right side of the lightning protection lead-in steel bar (81), a foundation flat steel (85) is arranged between the test point line box (82) and the building outer wall (8), and four connecting bolts (86) are installed between the upper outer surface of the foundation flat steel (85) and the lower outer surface of the lead-out flat steel (84).

6. A lightning protection grounding device for construction according to claim 5, characterized in that: The upper end of the lightning protection up-conductor steel bar (81) is welded to the lower end of the lightning protection down-conductor (73); the test point wire box (82) is embedded in the building outer wall (8); and the four connection bolts (86) are all located inside the test point wire box (82).

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