CN111042187A

CN111042187A - Electric power wind-resistant overturn-preventing inner expansion pole foundation

Info

Publication number: CN111042187A
Application number: CN202010061283.6A
Authority: CN
Inventors: 张若玮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-04-21

Abstract

The invention provides an electric power wind-resistant overturn-resistant internal expansion pole foundation which is arranged below the ground and used for supporting a pole, so that the pole has better wind-resistant, overturn-resistant and uplift-resistant capabilities; when the electric pole or the transfer line is replaced in the future, the foundation can be reused, and investment is not wasted. The characteristics of the interior inflation pole basis of overturning are prevented in electric power anti-wind are: the foundation is placed on the ground and is directly driven into or pressed into the ground after being straightened; the lower part of the foundation is provided with four expansion plates, the expansion plates can be respectively expanded in all directions by screwing the screw rod, and the lower part of the expansion plates is in a claw shape so as to strengthen the stability and the anti-pulling capacity of the foundation; the upper part of the foundation is provided with an inverted horn-shaped counter bore, and positioning bolts are arranged around the upper part of the inverted horn-shaped counter bore; heavy electric power pole is put among the loudspeaker form counter bore of falling, and its lower extreme card is in the bottom of loudspeaker form counter bore of falling, the higher authority by the vertical degree of the heavy electric power pole of positioning bolt adjustment earlier, then fill in the loudspeaker form counter bore of falling and agree with the piece and further fix heavy electric power pole, at last fill in with earth in the hole.

Description

Electric power wind-resistant overturn-preventing inner expansion pole foundation

Technical Field

The invention relates to a power pole foundation.

Background

The tower is a general name of an electric pole and an iron tower, is vertically arranged on the ground as a support device of an overhead line, and is used for supporting wires and lightning conductors so as to keep certain safe distances among the wires, between the wires and the lightning conductors, between the wires and the ground and between crossed spanning objects; the underground devices of the tower are collectively called as a foundation, and the foundation is used for stabilizing the tower, so that the tower is prevented from being pulled up, sinking or toppling over due to the effects of bearing vertical load, horizontal load, accident disconnection tension and external force.

Two people are a set of under the general condition of traditional electric wire netting pole basis excavation, need 4 hours with "spade shovel and digging spoon" excavation depth about 2 meters's foundation ditch and can accomplish, and inefficiency just consumes workman's physical power too big, under the condition of foundation ditch ponding, the water and the mud of scooping out when using the digging spoon, increase the work degree of difficulty.

The traditional power grid pole foundation generally adopts a chassis, a chuck and a guyed disk, namely three disks. The three plates are usually prefabricated by reinforced concrete, and can also be made of natural stones. The chassis is used for reducing the pushing down force that the pole root bottom ground bore, prevents that the pole from sinking. The chuck is used for increasing the antidumping power of shaft tower, prevents the pole slope. The guy wire disc is used for increasing the pulling resistance of the guy wire and preventing the guy wire from being pulled upwards. When the traditional power grid pole foundation does not meet the windproof requirement, the adopted windproof reinforcement measures have the advantages and the disadvantages of different degrees, for example, the integral reinforcement effect of the pole is better by installing the windproof stay wire measure, but the integral reinforcement effect needs to occupy a larger area of the ground, the land acquisition is difficult, the implementation difficulty is large and the attractiveness is influenced due to the limitation of partial field conditions; if the electric pole sleeve foundation is added, the foundation has better anti-overturning force, but the electric pole needs to be hoisted again after the electric pole is pulled out and the sleeve foundation is buried, power failure construction is needed, and the sleeve foundation lacks of an adjusting mechanism, so that the electric pole is difficult to correct; if increase the cast-in-place muddy earth basis of pole, the construction back basis is even as an organic whole with the pole, when changing the pole or migrating the circuit backward, its basis can not reuse, extravagant investment. In addition, the types of the electric poles in the power distribution network which do not meet the windproof requirements due to the foundation are more, and the problem of land acquisition often becomes a difficult problem which restricts the electric poles to be windproof and reinforced, so that the electric poles always face the serious damage risk after the typhoon comes. Therefore, a more suitable power distribution network pole foundation needs to be developed to ensure the integrity of the power facilities.

Disclosure of Invention

Aiming at the problems, the invention provides an electric wind-resistant overturn-preventing internal expansion pole foundation which is arranged below the ground and used for supporting a pole, so that the pole has better wind-resistant, overturn-resistant and uplift-resistant capabilities; when the electric pole or the transfer line is replaced in the future, the foundation can be reused, and investment is not wasted.

The invention is realized by the following steps: the characteristics of the interior inflation pole basis of overturning are prevented in electric power anti-wind are: the foundation is placed on the ground and is directly driven into or pressed into the ground after being straightened; the lower part of the foundation is provided with four expansion plates, the expansion plates can be respectively expanded in all directions by screwing the screw rod, and the lower part of the expansion plates is in a claw shape so as to strengthen the stability and the anti-pulling capacity of the foundation; the upper part of the foundation is provided with an inverted horn-shaped counter bore, and positioning bolts are arranged around the upper part of the inverted horn-shaped counter bore; heavy electric power pole is put among the loudspeaker form counter bore of falling, and its lower extreme card is in the bottom of loudspeaker form counter bore of falling, the higher authority by the vertical degree of the heavy electric power pole of positioning bolt adjustment earlier, then fill in the loudspeaker form counter bore of falling and agree with the piece and further fix heavy electric power pole, at last fill in with earth in the hole.

The expanding plates are provided with conical screw holes inside after being combined, and the screw rod is screwed in the conical screw holes.

The foundation is subjected to multiple anticorrosion treatments.

The base can be rectangular or in shape, and can automatically prevent the base from rotating when the screw rod is rotated.

The invention has the following functions:

1. compared with the prior art, the foundation is completely buried underground, does not occupy the surrounding land resources, does not affect the appearance, avoids the land acquisition problem, and focuses more on reinforcing the electric pole foundation.

2. The foundation is placed on the ground, and can be directly driven into or pressed into the ground after being straightened, so that the foundation pit excavation of the power grid pole foundation is omitted, the efficiency is high, and the physical consumption of electric workers is reduced.

3. The foundation is deeply buried underground, the depth can reach several meters when necessary, and the expansion effect of the expansion plates in all directions at the lower part of the foundation greatly improves the capabilities of resisting settlement, inclination and pulling and the like compared with the prior art, and can effectively support a heavy electric power pole.

4. The foundation can be arranged in sections and connected with each other in the field operation process so as to eliminate the difficulty of transportation and pressing.

5. Still establish the pole aligning device above this basis, can portably adjust the vertical degree of pole, the maintenance of being convenient for in the future.

6. The expansion plates in all directions at the lower part of the foundation are combined in the initial state, so that the lower part of the expansion plate is only conical, the pressing difficulty is reduced, and soil can be extruded to the periphery only, so that the compactness of the soil around the foundation is improved, and the stability of the foundation is further improved.

7. The rectangular foundation can prevent rotation, so that the pulling resistance of the foundation can be continuously enhanced.

8. When the electric pole or the transfer line is replaced in the future, the foundation can be reused, and investment is not wasted.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic diagram of the foundation of the electric wind-resistant overturn-preventing internal expansion electric pole.

Fig. 2 is a schematic top view of the foundation of the electric wind-resistant overturn-preventing internal expansion electric pole of the invention.

In the figure: 1. the anti-overturning anti-wind power pole comprises a ground, 2. an electric wind-resistant anti-overturning internal expansion pole foundation, 3. a positioning bolt, 4. a heavy electric pole, 5. a rotating screw rod, 6. an inverted-horn-shaped counter bore, 7. a hole pit and 8. an expansion plate.

Detailed Description

As shown in the figure, the foundation 2 is placed on the ground 1, and can be directly driven into the ground or pressed into the ground by a beating or pressing machine after being straightened, and the foundation is arranged in sections with large length and connected with each other in the field operation process so as to eliminate the difficulty of transportation and beating. The lower part of the foundation 2 is provided with four direction expansion plates 8, the specific number can be increased or decreased according to the situation, the inner parts of the direction expansion plates 8 are provided with conical screw holes after being combined, and the screw rods 5 are screwed in the conical screw holes; after the expansion board is driven or pressed into the ground, the screw rod 5 is screwed down to ensure that the lower part of the expansion board is in a claw shape to strengthen the respective expansion towards all directions, and the lower part of the expansion board is in a claw shape to strengthen the stability and the anti-pulling capacity of the foundation 2; the base 2 is rectangular or rectangular in shape, and the base 2 is automatically prevented from rotating when the screw 5 is rotated. An inverted horn-shaped counter bore 6 is arranged at the upper part of the foundation 2, and positioning bolts 3 are arranged around the upper part of the inverted horn-shaped counter bore 6; heavy electric power pole 4 is put among the loudspeaker form counter bore 6 that falls, and its lower extreme card makes it can not move the bullet in the bottom of loudspeaker form counter bore 6 that falls, and the higher authority is earlier by the vertical degree of the heavy electric power pole 4 of positioning bolt 3 adjustment, then fills in loudspeaker form counter bore 6 and agrees with the piece and further fix heavy electric power pole 4. The foundation 2 is subjected to multiple corrosion prevention treatments and finally filled with soil in the hole pit 7.

The structure of the present invention is not limited to the form described in the embodiment, and further developments made by those skilled in the art according to the present invention fall within the protection scope of the present invention.

The wind-resistant and overturn-preventing inner expansion electric pole foundation is quite suitable for supporting heavy electric poles, and is good in flexibility and performance.

Claims

1. The utility model provides an electric power anti-wind prevents toppling internal expansion pole basis which characterized by: the foundation (2) is placed on the ground (1) and is directly driven into or pressed into the ground after being straightened; the lower part of the foundation (2) is provided with four direction expansion plates (8), the expansion plates (8) can be respectively expanded in all directions by screwing the screw (5), and the lower part of the expansion plates is in a claw shape so as to strengthen the stability and the anti-pulling capacity of the foundation (2); an inverted horn-shaped counter bore (6) is arranged at the upper part of the foundation (2), and positioning bolts (3) are arranged around the upper part of the inverted horn-shaped counter bore (6); the heavy electric power pole (4) is placed in the inverted horn-shaped counter bore (6), the lower end of the heavy electric power pole is clamped at the bottom of the inverted horn-shaped counter bore (6), the vertical degree of the heavy electric power pole (4) is adjusted by the positioning bolt (3) on the heavy electric power pole, then a wedge is plugged into the inverted horn-shaped counter bore (6) to further fix the heavy electric power pole (4), and finally the hole pit (7) is filled with soil;

the expanding plates (8) are provided with conical screw holes inside after being combined, and the screw rod (5) is screwed in the conical screw holes.

2. The electric wind-resistant overturn-preventing internal expansion pole foundation as claimed in claim 1, which is characterized in that: the base (2) is subjected to multiple anticorrosive treatments.

3. The electric wind-resistant overturn-preventing internal expansion pole foundation as claimed in claim 1, which is characterized in that: the base (2) is rectangular or rectangular in shape, and the base (2) is automatically prevented from rotating when the screw (5) is rotated.