CN216197044U - Pre-buried band iron internal grounding concrete pole - Google Patents

Abstract

The utility model relates to a pre-buried flat iron internal grounding concrete electric pole, which comprises a concrete electric pole, wherein flat irons are pre-buried at the upper part and the lower part of a concrete electric pole body, the outer ends of the flat irons are communicated with the peripheral side of the concrete electric pole, the lower end of a reinforcement cage of the concrete electric pole is grounded, grounding bolts are screwed in the middle of the flat irons, and the inner ends of the grounding bolts and the inner ends of the flat irons are both welded with the reinforcement cage of the concrete electric pole.

Description

Pre-buried band iron internal grounding concrete pole

Technical Field

The utility model relates to the field of pile foundation construction, in particular to a concrete pole with embedded flat iron and internal grounding.

Background

The distribution line pole used in China mostly adopts a concrete pole. Taking the Fujian area as an example, the Fujian province is located in the southeast coastal region, the strong thunder area and the multiple thunder area account for 97% of the total area of the whole province, the coverage rate of the lightning arresters of the power distribution lines exceeds 27%, most of the lightning arresters of the lines are not provided with independent grounding devices, and the poles are naturally grounded. After lightning stroke 10kV overhead line caused the arrester to switch on, because tower head metal cross arm does not do equipotential with reinforced concrete pole inner structure reinforcing bar usually and is connected, lightning overvoltage discharged pole structure reinforcing bar at the cross arm position easily, caused the concrete on pole top layer to burst and drop, exposed inner structure reinforcing bar even. Under the erosion of long-term rainwater moisture etc., the naked structural reinforcement of pole corrodes gradually, influences pole mechanical strength.

And the pole of the outside ground connection's of round steel form, its ground connection downlead under the erosion of long-term rainwater moisture etc. under the erosion of the exposed structural reinforcement of pole corrosion long-term rainwater moisture etc. gradually, the exposed structural reinforcement of pole corrosion gradually.

Disclosure of Invention

Aiming at the defects, the utility model provides the concrete electric pole with the embedded flat iron and the inner grounding.

According to the scheme adopted by the utility model for solving the technical problem, the embedded flat iron internal grounding concrete pole comprises a concrete pole body, flat irons are embedded in the upper portion and the lower portion of the concrete pole body, the outer ends of the flat irons are communicated with the outer peripheral side of the concrete pole body, the lower end of a reinforcement cage of the concrete pole body is grounded, grounding bolts are connected to the middle of the flat irons in a screwed mode, and the inner ends of the grounding bolts and the inner ends of the flat irons are welded with the reinforcement cage of the concrete pole body.

Further, the flat iron on the upper portion is arranged at a position 2 meters away from the tip top, and the flat iron on the lower portion is arranged at a position 0.5 meters above the buried deep line of the electric pole.

Further, the length direction of the flat iron is perpendicular to the axial direction of the concrete pole.

Furthermore, the main reinforcement of the reinforcement cage at the inner end of the flat iron is welded, and the main reinforcement and the inner hoop reinforcement are bound through iron wires to form the reinforcement cage.

Furthermore, when the flat iron is welded with the inner hoop, the overlapping length of the flat iron and the inner hoop is 6 times of the diameter of the inner hoop.

Compared with the prior art, the utility model has the following beneficial effects: simple structure, reasonable in design, inside ground connection, the corrosion resistance ability is stronger, and more pleasing to the eye, and simultaneously, the precast machining of concrete pole in the mill, the later stage only need be connected through earth bolt and ground connection downlead and form ground return circuit.

Drawings

The utility model is further described with reference to the following figures.

Fig. 1 is a schematic view of a structure of a concrete pole.

Fig. 2 is a schematic view of the installation position of the flat iron.

Fig. 3 is a schematic view of the connection structure of the flat iron and the reinforcement cage.

In the figure: 1-a concrete pole, 2-a flat iron at the upper part of the pole, 3-a flat iron at the lower part of the pole, 4-a flat iron, 5-a reinforcement cage, 6-a main reinforcement and 7-an inner stirrup; 8-a ground bolt; 9-nut.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-3, a ground connection concrete pole in pre-buried band iron, including concrete pole 1, pre-buried band iron 4 in concrete pole body upper portion and lower part, band iron outer end intercommunication concrete pole periphery side, concrete pole's steel reinforcement cage lower extreme ground connection, the welding of band iron middle part through-hole department has nut 9, the spiro union has earth bolt on the nut, conveniently be connected with each type ground terminal, earth bolt inner, band iron inner all with concrete pole's steel reinforcement cage 5 welding, last band iron passes through earth bolt 8 after the concrete pole setting, the band iron, be connected with the steel reinforcement cage of pole and realize ground connection, lower band iron passes through earth bolt, the band iron, is connected with the steel reinforcement cage of pole and realizes connecing.

In the embodiment, the flat iron at the upper part is arranged at a position 2 meters away from the tip top, and the flat iron at the lower part is arranged at a position 0.5 meters above the buried deep line of the electric pole.

In this embodiment, the length direction of the flat iron is perpendicular to the axial direction of the concrete pole.

In this embodiment, 6 welding of main muscle of band iron inner steel reinforcement cage, main muscle and interior stirrup 7 form the steel reinforcement cage through the iron wire ligature, and interior stirrup and main muscle should adopt and be not less than #20 iron wire cross ligature, and the both ends are folded the bending into 60 jiaos and pass the ligature point, catch on both ends with the iron hook and rotate 5-6 circles, ensure the ligature firmness, and interior stirrup and main muscle ligature department all need scribble electric power fat, and the coating is thick and is not less than 0.2 mm.

In this embodiment, the length of the overlap between the flat iron and the inner hoop should be 6 times the diameter of the inner hoop when the flat iron is welded to the inner hoop.

If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.

The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a ground connection concrete pole in pre-buried band iron which characterized in that: the concrete pole comprises a concrete pole body, flat irons are pre-embedded in the upper portion and the lower portion of the concrete pole body, the outer ends of the flat irons are communicated with the outer peripheral side of the concrete pole, the lower end of a reinforcement cage of the concrete pole is grounded, grounding bolts are screwed in the middle of the flat irons, and the inner ends of the grounding bolts and the inner ends of the flat irons are welded with the reinforcement cage of the concrete pole.

2. The ground concrete pole in pre-buried band iron of claim 1, characterized in that: the flat iron on the upper part is arranged at a position 2 meters away from the tip top, and the flat iron on the lower part is arranged at a position 0.5 meters above the buried deep line of the electric pole.

3. The ground concrete pole in pre-buried band iron of claim 1, characterized in that: the length direction of the flat iron is perpendicular to the axial direction of the concrete pole.

4. The ground concrete pole in pre-buried band iron of claim 3, characterized in that: the main reinforcement of the reinforcing cage at the inner end of the flat iron is welded, and the main reinforcement and the inner hoop reinforcement are bound through iron wires to form the reinforcing cage.

5. The ground concrete pole in pre-buried band iron of claim 4, characterized in that: when the flat iron is welded with the inner hoop, the lap length of the flat iron is 6 times of the diameter of the inner hoop.

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