CN216379621U - High and cold area transmission line shaft tower electrically conducts basis - Google Patents
High and cold area transmission line shaft tower electrically conducts basis Download PDFInfo
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- CN216379621U CN216379621U CN202122832521.1U CN202122832521U CN216379621U CN 216379621 U CN216379621 U CN 216379621U CN 202122832521 U CN202122832521 U CN 202122832521U CN 216379621 U CN216379621 U CN 216379621U
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Abstract
The utility model discloses a power transmission line pole and tower conductive foundation in alpine regions, and relates to the technical field of conductive tower foundations. This high and cold area transmission line shaft tower conductive foundation, current transmission line shaft tower conductive foundation current diffusing capacity is limited and the problem that the lightning conductor is fixed firm inadequately.
Description
Technical Field
The utility model relates to the technical field of conductive tower foundations, in particular to a conductive foundation of a power transmission line tower in a severe cold area.
Background
When laying power lines in alpine regions, it is often necessary to cross over frozen soil zones. In order to ensure the safe and stable operation of the transmission line, the reduction of the grounding resistance of the transmission line tower is a main measure for improving the lightning-resistant level of the transmission line and reducing the lightning trip-out rate of the transmission line. The natural grounding body grounding is one of the traditional transmission line resistance reduction modes, and the natural grounding body grounding means that a metal member in a tower footing is directly contacted with the ground so as to discharge lightning current or fault current.
Because of the great resistance value in frozen soil layer, transmission line only relies on simple metal component to carry out the free flow, and the free flow ability is limited, and the reliability is lower, and seasonal frozen soil layer frost heaving is great to the base steadiness influence simultaneously, and the detonator is fixed firm inadequately, easily pine takes off.
Therefore, it is necessary to provide a conductive foundation for a power transmission line tower in an alpine region to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims to provide a transmission line tower conductive foundation in an alpine region, and aims to solve the problems that the existing transmission line tower conductive foundation in the background technology is limited in current dispersing capacity and cannot fix a lightning conductor stably.
(II) technical scheme
In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a high and cold area transmission line shaft tower conductive foundation, includes conductive concrete base, conductive concrete base's top is equipped with conductive concrete base, conductive concrete base and conductive concrete base's inside all is equipped with framework of steel reinforcement, conductive concrete base's the outside is equipped with non-frost heaving material filling layer, the built-in fitting has been buried underground on conductive concrete base's top, conductive concrete base runs through frozen soil layer, electrode joint has been buried underground to conductive concrete base's top inside.
Preferably, the depth of the non-frost heaving material filling layer is greater than that of the frost layer, and the non-frost heaving material filling layer is arranged at the top end of the conductive concrete base.
Preferably, the embedded part and the electrode joint are fixedly connected with the steel reinforcement framework.
Preferably, the electrode joint comprises a connecting seat, a wedge block and a grounding electrode, the connecting seat and the grounding electrode are both embedded in the conductive concrete base body, and a groove is formed in the middle of the connecting seat.
Preferably, the wedge-shaped blocks are two, one of the wedge-shaped blocks is arranged in the groove, and one side, corresponding to the two wedge-shaped blocks, of the two wedge-shaped blocks is provided with a tooth-shaped clamping groove.
Preferably, an arc-shaped groove is formed in one side of the wedge-shaped block, and anti-skid grains are arranged on the inner side of the groove.
(III) advantageous effects
Compared with the prior art, the utility model provides a power transmission line pole and tower conductive foundation in alpine regions, which has the following beneficial effects:
1. this high and cold district transmission line shaft tower electrically conducts basis through setting up metal built-in fitting, conductive concrete base, electrode joint, improves the area of scattering and switches on the effect, can ensure that lightning current or fault current discharge more smoothly, simultaneously under the effect of non-frost heaving material filling layer, can reduce the influence of seasonal frost heaving to conductive concrete base member in the frozen soil layer, has solved the limited problem of the ability of scattering.
2. This electrically conductive basis of severe cold district transmission line shaft tower through setting up wedge and connecting seat, makes its electrode joint can be applicable to the detonator line of two kinds of types in circle cross-section and flat cross-section, under the effect of cusp draw-in groove, makes detonator line can not the pine take off or extract, has solved detonator line and has fixed firm problem inadequately.
Drawings
FIG. 1 is a schematic perspective cross-sectional view of the structure of the present invention;
fig. 2 is a schematic cross-sectional view of an electrode tab of the present invention.
In the figure: 1. a frozen soil layer; 2. a metal embedded part; 3. a non-frost-heaving material fill layer; 4. a conductive concrete matrix; 5. a non-frozen soil layer; 6. a conductive concrete base; 7. an electrode tab; 8. a steel reinforcement cage; 10. a wedge block; 11. an arc-shaped slot; 12. a tooth-shaped clamping groove; 13. a groove; 15. a connecting seat; 16. and a grounding electrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, an electric conduction foundation of a transmission line tower in a severe cold area comprises an electric conduction concrete base 6, an electric conduction concrete base 4 is arranged at the top end of the electric conduction concrete base 6, reinforcing steel frameworks 8 are arranged inside the electric conduction concrete base 4 and the electric conduction concrete base 6, a non-frost heaving material filling layer 3 is arranged outside the electric conduction concrete base 4, the depth of the non-frost heaving material filling layer 3 is larger than that of a frost layer 1, the non-frost heaving material filling layer 3 is arranged at the top end of the electric conduction concrete base 6, an embedded part 2 is embedded at the top end of the electric conduction concrete base 4, the electric conduction concrete base 4 penetrates through the frost layer 1, an electrode joint 7 is embedded inside the top end of the electric conduction concrete base 4, the embedded part 2 and the electrode joint 7 are fixedly connected with the reinforcing steel frameworks 8, the electrode joint 7 is composed of a connecting seat 15, a block 10 and a grounding electrode 16, connecting seat 15 and earthing pole 16 are all buried underground in conductive concrete base member 4, and the middle part of connecting seat 15 is equipped with recess 13, and wedge 10 has two, and one of them wedge 10 is established in recess 13, and dentate draw-in groove 12 has all been seted up to two corresponding one sides of wedge 10, and arc 11 has been seted up to wedge 10 one side, and the inboard of recess 13 is equipped with anti-skidding line.
The working principle is as follows: when a metal power transmission line tower is arranged, the power transmission line tower is fixed with a conductive concrete base body 4 through an embedded part 2, when a tower body is struck by lightning or has fault current, the current is guided to the conductive concrete base body 4 and the conductive concrete base 6 under the action of the embedded part 2, as the conductive concrete base body 4 and the conductive concrete base 6 have larger contact areas with the ground, the lightning current or the fault current is more smoothly discharged, wherein a steel reinforcement framework 8 has the functions of assisting the current dissipation and supporting, when the nonmetal power transmission line tower is arranged, a lightning lead is arranged on the outer side of the nonmetal power transmission line tower, the lightning lead is communicated with the conductive concrete base body 4 through an electrode joint 7, when the lightning lead is fixed, the lightning lead is inserted into a groove 13, a wedge 10 is nailed into the groove 13, under the action of the two wedge blocks 10, will compress tightly the detonator and fix in recess 13, under the effect of arc wall 11, make its electrode joint 7 can be applicable to the detonator of two kinds of types of round section and flat cross-section, under the effect of dentate draw-in groove 12, make the detonator can not loosen or extract, through setting up non-frost heaving material filling layer 3, can reduce the influence of seasonal frozen soil district frost heaving to conductive concrete base member 4 in the frozen soil layer, bury underground to non-frozen soil layer 5 because of conductive concrete base 6, can improve the stability of column foot, improve the effect of shedding simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high and cold area transmission line shaft tower conductive foundation, includes conductive concrete base (6), its characterized in that: the top of conductive concrete base (6) is equipped with conductive concrete base (4), the inside of conductive concrete base (4) and conductive concrete base (6) all is equipped with framework of steel reinforcement (8), the outside of conductive concrete base (4) is equipped with non-frost heaving material filling layer (3), built-in fitting (2) have been buried underground to the top of conductive concrete base (4), conductive concrete base (4) run through frozen soil layer (1), electrode joint (7) have been buried underground to the top inside of conductive concrete base (4).
2. The electric transmission line tower conductive foundation of the alpine region according to claim 1, characterized in that: the depth of the non-frost heaving material filling layer (3) is greater than that of the frost layer (1), and the non-frost heaving material filling layer (3) is arranged at the top end of the conductive concrete base (6).
3. The electric transmission line tower conductive foundation of the alpine region according to claim 1, characterized in that: and the embedded part (2) and the electrode joint (7) are fixedly connected with the steel reinforcement framework (8).
4. The electric transmission line tower conductive foundation of the alpine region according to claim 1, characterized in that: the electrode joint (7) is composed of a connecting seat (15), a wedge block (10) and a grounding electrode (16), the connecting seat (15) and the grounding electrode (16) are both embedded in the conductive concrete base body (4), and a groove (13) is formed in the middle of the connecting seat (15).
5. The electric transmission line tower conductive foundation of claim 4, which is characterized in that: the wedge-shaped blocks (10) are two, one of the wedge-shaped blocks (10) is arranged in the groove (13), and one side, corresponding to the two wedge-shaped blocks (10), is provided with a toothed clamping groove (12).
6. The electric transmission line tower conductive foundation of claim 5, which is characterized in that: an arc-shaped groove (11) is formed in one side of the wedge-shaped block (10), and anti-skid grains are arranged on the inner side of the groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832521.1U CN216379621U (en) | 2021-11-18 | 2021-11-18 | High and cold area transmission line shaft tower electrically conducts basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832521.1U CN216379621U (en) | 2021-11-18 | 2021-11-18 | High and cold area transmission line shaft tower electrically conducts basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216379621U true CN216379621U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122832521.1U Active CN216379621U (en) | 2021-11-18 | 2021-11-18 | High and cold area transmission line shaft tower electrically conducts basis |
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| Country | Link |
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| CN (1) | CN216379621U (en) |
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2021
- 2021-11-18 CN CN202122832521.1U patent/CN216379621U/en active Active
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