CN210577502U

CN210577502U - Novel bridge grounding structure

Info

Publication number: CN210577502U
Application number: CN201921327355.6U
Authority: CN
Inventors: 朱立伟; 张宏志; 杨威; 吴骏
Original assignee: Shanghai Construction No 7 Group Co Ltd
Current assignee: Shanghai Construction No 7 Group Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-19
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a novel crane span structure ground structure belongs to lightning grounding technical field. The bridge frame comprises a plurality of bridge frame sections which are spliced with each other, and adjacent bridge frame sections are bridged through copper braided belts; the bridge frame joint is fixed on a support, and the support is fixed on a building structure through a hanging rod; the grounding structure comprises a grounding trunk line, a grounding wire and a puncture wire clamp; the grounding electric wires are distributed along the bridge, and a branching line is arranged at each support and fixedly connected with the supports; the grounding trunk line is vertically arranged and is communicated with the grounding wire. Each part of the bridge grounding structure is detachably connected, so that the bridge grounding structure has the advantages of convenience in installation, maintenance and operation, good grounding effect and high safety.

Description

Novel bridge grounding structure

Technical Field

The utility model relates to a novel crane span structure ground structure belongs to lightning grounding technical field.

Background

The cable bridge is a device for fixing cables, the bridge is supported and fixed through a support, and the problem of grounding of the bridge needs to be considered. At present, a bridge frame grounding mode commonly adopted by the building industry is that a flat steel connected with a support is laid on the support, the flat steel is indirectly communicated with a heavy current main earth line, but the requirement on corrosion resistance of buildings in coastal areas is high, high humidity and high salinity are in the air, salt spray corrosion has large influence on main materials of the used flat steel, and in addition, the flat steel needs to be welded and perforated, so that the operation is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel crane span structure ground structure has anticorrosion, simple installation's advantage.

For solving the technical problem, the utility model discloses a following technical scheme:

a novel bridge frame grounding structure comprises a plurality of bridge frame sections which are spliced with each other, wherein the bridge frame sections are fixed on a support, and the support is fixed on a building structure through a hanging rod; the grounding structure comprises a grounding trunk line, a grounding electric wire and a branching line; the grounding electric wires are distributed along the bridge, a branching line is arranged at each support, and two ends of each branching line are fixedly connected with the supports and the grounding electric wires respectively; the grounding trunk line is vertically arranged and is communicated with the grounding wire.

Furthermore, the adjacent bridge frame sections are bridged by copper braided belts.

Furthermore, a puncture wire clamp is arranged at the joint of the grounding wire and the support and used for connecting the grounding wire with the branching wire.

Furthermore, the branching line is connected with the bracket through bolts.

Further, the grounding wire is a copper core insulated sheath wire.

Further, the grounding trunk line is galvanized flat steel.

The novel bridge frame grounding structure has simple structure, can be detachably connected among all parts, and has the advantage of convenient installation, maintenance and operation; the grounding wire is communicated with the grounding trunk line, and a branch line is arranged at each bracket and fixedly connected with the bracket; the grounding trunk line is vertically arranged and is communicated with the grounding wire. Each part of the bridge grounding structure is detachably connected, so that the bridge grounding structure has the advantages of convenience in installation, maintenance and operation, good grounding effect and high safety.

Drawings

Fig. 1 is a schematic structural view of a bridge frame of a novel bridge frame grounding structure provided by the present invention.

The numbers in the figures are as follows:

1-a scaffold; 2-a suspender; 3-a bridge frame; 4-a bolt; 5-building a structure; 6-a ground wire; 7-a puncture wire clamp; 8-splitting.

Detailed Description

The following describes a novel bridge grounding structure in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Fig. 1 is a schematic structural diagram of a novel bridge grounding structure, fig. 1 is three bridges 3, each bridge 3 includes a plurality of bridge sections which are spliced with each other, the bridge sections are fixed on a support 1 through bolts 4, and the bridge sections are fixed on the top of a building structure 5 through hanger rods which are arranged in pairs.

The ground structure includes a ground main (not shown), a ground wire 6 and a branch 8. The grounding electric wire 6 is distributed along the bridge frame 3, a branching line 8 is arranged at each support 1, and two ends of each branching line 8 are respectively fixedly connected with the support 1 and the grounding electric wire 6; the ground trunk is vertically arranged and is communicated with a ground wire 6. The support is a conductor and is communicated with the bridge frame to form a communicated conductor. Static electricity or leakage on the bridge 3 can be transmitted to a grounding main line through the bracket 1, the branch line 8 and the grounding wire 6. The ground main may be disposed in a heavy electric room shaft, for example, the ground main may be a 40 × 4 galvanized flat steel, which is in communication with the ground ring network. The grounding trunk line can be communicated with grounding wires among the multi-layer structures of the building to communicate the bridge frame with the grounding ring network, so that a better grounding effect is achieved.

Preferably, adjacent bridge sections are bridged by copper braided straps. Specifically, adjacent bridge frame sections are mutually overlapped, a copper braided belt is arranged at the overlapping part for bridging, and the copper braided belt is fastened through a bolt 4, so that the whole bridge frame forms a conductor.

Preferably, a puncture clamp 7 is arranged at the joint of the grounding wire 6 and the bracket 1 for connecting the grounding wire 6 and the branch wire 8. The puncture wire clamp 7 is generally composed of a reinforcing shell, a puncture blade, a sealing gasket, waterproof silicone grease, a high-strength bolt, a torque nut and a cable terminal cap sleeve, is a component adopted when a cable needs to be branched or connected, adopts the puncture wire clamp 7 to lead out a branching wire 8, and has the characteristics of simplicity and convenience in installation, low cost, safety, reliability and no maintenance.

In a preferred embodiment, the grounding wire 6 is a copper core insulated sheath wire, and the grounding wire 6 has a cross-sectional area of 25mm, for example²The material of the yellow-green double-color wire is a copper core polyvinyl chloride insulating outer sleeve wire.

Preferably, the branch line 8 is fastened with the bracket 1 by a bolt 4, so that the conductive effect between the bracket 1 and the branch line 8 is ensured.

The installation steps of the novel bridge grounding structure are as follows:

a hanger rod 2 is arranged on a building structure 5, a bracket 1 is installed, bridge sections are mutually spliced on the bracket 1 to form a bridge 3, adjacent bridge section brackets are bridged through a copper braided belt 5, and the bridge 3 is fixedly connected with the bracket 1 through a bolt 4;

and arranging grounding electric wires 6 along the bridge 3, arranging a puncture wire clamp 7 at each bracket 1 to lead out a branching line 8, fixedly connecting the branching line 8 with the bracket 1 by using a bolt 4, and communicating the grounding electric wires 6 with a grounding main line.

The novel bridge frame grounding structure of the utility model has simple structure, can be detachably connected among all the parts, and has the advantage of convenient installation, maintenance and operation; the grounding wire 6 is communicated with a grounding trunk line, a branching 8 is arranged at each support 1, the branching 8 is connected with the supports 1, a copper braided belt 5 is adopted for bridging between bridge sections, and the bridge 3 is connected with the supports 1 through bolts 4, so that the bridge 3 can be effectively grounded, and the grounding device has the advantages of good grounding effect and high safety. The grounding wire 6 is made of a copper core insulating outer sleeve, so that coastal air corrosion can be effectively prevented, and the safety performance is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A novel bridge frame grounding structure is characterized in that a bridge frame comprises a plurality of bridge frame sections which are spliced with each other, the bridge frame sections are fixed on a support, and the support is fixed on a building structure through a hanging rod; the grounding structure comprises a grounding trunk line, a grounding electric wire and a branching line; the grounding electric wires are distributed along the bridge, a branching line is arranged at each support, and two ends of each branching line are fixedly connected with the supports and the grounding electric wires respectively; the grounding trunk line is vertically arranged and is communicated with the grounding wire.

2. The novel bridge grounding structure of claim 1, wherein adjacent bridge sections are bridged by copper braid.

3. The novel bridge grounding structure of claim 1, wherein a piercing clamp is provided at the connection between the grounding wire and the bracket for connecting the grounding wire and the branch wire.

4. The novel bridge grounding structure of claim 1, wherein the splits are bolted to the brackets.

5. The novel bridge grounding structure of claim 1, wherein said grounding wires are copper core insulated sheath wires.

6. The novel bridge grounding structure of claim 1, wherein said grounding rail is galvanized flat steel.