CN115142412A

CN115142412A - Expandable support type spiral combined ground anchor

Info

Publication number: CN115142412A
Application number: CN202210929695.6A
Authority: CN
Inventors: 彭生江; 张四江; 安宁; 王泉; 梁岩涛; 黄林柯; 王海宁; 冯小倩
Original assignee: State Grid Gansu Electric Power Co Construction Branch; State Grid Gansu Electric Power Co Ltd
Current assignee: State Grid Gansu Electric Power Co Construction Branch; State Grid Gansu Electric Power Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-10-04

Abstract

The invention discloses an expandable support type spiral combined ground anchor, which is characterized in that an upper anchor rod with internal threads is rotatably connected with a support rod through a connecting column, a fixedly installed arc-shaped connecting plate and a lower anchor rod are connected to the upper anchor rod through bolts, a pull rod with external threads is in threaded connection and transmission fit with the upper anchor rod with internal threads, the bottom of the pull rod is in contact fit with the upper end of the support rod, and a cable rope is wound on a circular shaft on the inner surface of the pull rod through a universal coupling; when the lower extreme of pull rod moves the upper end of bracing piece, under the effort of pull rod 1, the bracing piece begins to rotate clockwise around the spliced pole, make its expansion and become the theta angle with anchor rod axis down, the pull rod is big more along last anchor rod axial helical drive displacement, pretightning force in the cable wind rope is big more, the bracing piece is big more with the expansion angle theta of anchor rod axis down, improve the anchor power of earth anchor and soil, rational in infrastructure, compactness, the operation is nimble, the operation is steady, high efficiency, and the suitability is strong, and it is simple and convenient to adjust the operation.

Description

Expandable support type spiral combined ground anchor

Technical Field

The invention belongs to the field of electric machinery, and particularly relates to an expandable support type spiral combined ground anchor.

Background

Electric machines belong to high-rise structures, and are susceptible to disastrous accidents due to the effects of wind load, earthquakes, rain, snow and the like in the use process. Make electric machine and ground fastening connection through guy rope and earth anchor structure to can restrain or reduce the risk that electric machine collapsed, this mode has increased overall structure's stability, puts forward great requirement to the pretightning force of guy rope and the anchor power of earth anchor and soil simultaneously, when receiving load influences such as wind, earthquake or sleet, probably reduce guy rope's pretightning force and the anchor power of earth anchor and soil, influence electric machine's normal operation and use. The existing ground anchor structure needs to be independently provided with a cable wind rope pretightening force tightening mechanism or passively increase the anchoring force of the ground anchor and soil, and cannot meet and adapt to the requirements of actively controlling the cable wind rope pretightening force and the anchoring force. Therefore, the invention provides the deployable supporting type spiral combined ground anchor which is reasonable and compact in structure, flexible in operation, stable in operation, high in efficiency, strong in applicability and simple and convenient to adjust and operate.

Disclosure of Invention

In order to meet and adapt to the requirements of actively controlling the pretightening force and the anchoring force of the cable wind rope and improve the pretightening force of the cable wind rope and the anchoring force of the ground anchor and the soil, the invention discloses an expandable support type spiral combined ground anchor.

The utility model provides a can expand support formula spiral combination earth anchor, the earth anchor includes the pull rod, goes up stock, bracing piece and lower stock, it is provided with the stock internal thread to go up the stock internal surface, and the surface of pull rod is provided with the pull rod external screw thread, the pull rod carries out threaded connection and transmission cooperation through stock internal thread and pull rod external screw thread with last stock, goes up stock bottom symmetry and opens and has two rectangular channels two round holes are bored on the both sides face of rectangular channel, the bracing piece is L shape structure, and two spliced poles are adorned admittedly to the both sides face symmetry at the corner of bracing piece, and two bracing pieces carry out rotatable contact cooperation through the round hole of spliced pole with the rectangular channel both sides face respectively, the bracing piece be close to the one end of spliced pole and consolidate and have the baffle, the upper end and the arc connecting plate of stock are adorned admittedly down, and arc connecting plate and last stock carry out fixed connection through the bolt pull rod upper end internal surface along radially consolidating the circle axle, the cable wind rope twines on the circle axle through universal coupling.

Furthermore, four large rectangular blocks are fixedly arranged on the outer surface of the upper end part of the upper anchor rod, an included angle between every two adjacent large rectangular blocks is 90 degrees, and four small rectangular blocks are symmetrically and fixedly arranged on the outer surface of the upper end part of the pull rod by 90 degrees.

Furthermore, six threaded holes are symmetrically drilled in the outer surface of the non-rectangular groove at the bottom of the upper anchor rod, and bolts penetrate through the threaded holes to fixedly connect the arc-shaped connecting plate with the upper anchor rod.

The device has the advantages that the pre-tightening force of the cable wind rope is adjusted through threaded transmission, the reliability of the connection of the cable wind rope is achieved by utilizing the self-locking property of threaded connection, meanwhile, the anchoring force of the ground anchor and the soil can be actively controlled, the operation requirement of adjusting the pre-tightening force of the cable wind rope is created, meanwhile, the fastening force of the ground anchor and the soil can be improved, the overall structure is simple, the installation is convenient, the device is reasonable and compact, and the use is reliable.

Drawings

FIG. 1 is a schematic view of the general structure of the expandable support type screw combined ground anchor of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a sectional view taken along line B-B of FIG. 3;

FIG. 5 is an enlarged view of section I of FIG. 4;

fig. 6 is an enlarged view of section ii in fig. 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode.

An expandable support type spiral combined ground anchor is characterized in that four large rectangular blocks 6 are fixedly and symmetrically arranged on the outer surface of the upper end of an upper anchor rod 2 at 90 degrees, anchor rod internal threads 8 are fixedly arranged on the inner surface of the upper anchor rod 2, and rectangular grooves are symmetrically formed in the bottom of the upper anchor rod 2; two round holes are drilled on two side surfaces of the rectangular groove at the bottom of the upper anchor rod 2; six threaded holes are symmetrically drilled in the outer surface of the non-rectangular groove part at the bottom of the upper anchor rod 2; the upper end part of the lower anchor rod 4 is fixedly installed with an arc-shaped connecting plate 5, and the arc-shaped connecting plate 5 is fixedly connected with the upper anchor rod 2 through a bolt; two connecting columns 10 are symmetrically and fixedly arranged on two side surfaces of the supporting rod 3, and the two supporting rods 3 are in rotatable contact fit with the round holes on the two side surfaces of the rectangular groove at the bottom of the upper anchor rod 2 through the connecting columns 10 respectively; one side of the support rod 3 close to the connecting column 10 is fixedly arranged with a baffle 11; four small rectangular blocks 7 are symmetrically and fixedly arranged on the outer surface of the upper end part of the pull rod 1 at 90 degrees, and pull rod external threads 9 are fixedly arranged on the outer surface of the pull rod 1; the pull rod 1 and the upper anchor rod 2 are in threaded connection and transmission fit through an anchor rod internal thread 8 and a pull rod external thread 9; a round shaft 12 is fixedly arranged on the inner surface of the upper end part of the pull rod 1 along the radial direction, and a cable rope is wound on the round shaft 12 through a universal coupling.

During the operation use, at first rotationally assemble

bracing piece

3 and 2 bottoms of last stock through spliced pole 10, secondly utilize six bolts to carry out threaded connection with anchor 4 down, arc connecting plate 5 carries out threaded connection with last stock 2, form the assembly under the earth anchor, dig into the assembly under the earth anchor or during the impact type is driven into soil through outer power, pull rod 1 carries out screw drive along 2 axial and stock internal thread 8 of last stock through pull rod external screw thread 9, form the spiral assembly of earth anchor, circle axle 12 rotates and moves down along 2 axes of last stock along with pull rod 1 together, and then make the winding tight on circle axle 12 the guy rope of cable, improve guy rope pretightning force. When the lower extreme of pull rod 1 moved the upper end of bracing piece 3, under the effort of pull rod 1, bracing piece 3 began around spliced pole 10 clockwise rotation, made it expand and become theta angle with 4 axis of lower stock, pull rod 1 along 2 axial screw drive displacements of upper stock more big, pretightning force in the cable wind rope is big more, the expansion angle theta of

bracing piece

3 and 4 axis of lower stock is big more, and then improves the anchor power of earth anchor spiral assembly and soil.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims

1. The utility model provides a can expand and support formula spiral combination earth anchor, a serial communication port, the earth anchor includes the pull rod, goes up stock, bracing piece and lower stock, it is provided with the stock internal thread to go up the stock internal surface, and the surface of pull rod is provided with the pull rod external screw thread, the pull rod carries out threaded connection and transmission cooperation through stock internal thread and pull rod external screw thread with last stock, goes up stock bottom symmetry and opens and has two rectangular channels two round holes have been bored on the both sides face of rectangular channel, the bracing piece is L shape structure, adorns two spliced poles admittedly at the both sides face symmetry of the corner of bracing piece, and two bracing pieces carry out rotatable contact cooperation through the round hole of spliced pole with the rectangular channel both sides face respectively, the bracing piece be close to the one end of spliced pole and have consolidated the baffle, the upper end and the arc connecting plate of stock are adorned admittedly down, and arc connecting plate carry out fixed connection through the bolt with last stock the pull rod upper end internal surface along radially adorning the circle axle admittedly, cable wind rope twines on the circle axle through universal coupling.

2. The expandable support type spiral combined ground anchor according to claim 1, wherein four large rectangular blocks are fixedly arranged on the outer surface of the upper end part of the upper anchor rod, the included angle between two adjacent large rectangular blocks is 90 degrees, and four small rectangular blocks are symmetrically arranged on the outer surface of the upper end part of the pull rod in a 90-degree manner.

3. The expandable support type spiral combined ground anchor is characterized in that six threaded holes are symmetrically drilled in the outer surface of the non-rectangular groove part at the bottom of the upper anchor rod, and bolts penetrate through the threaded holes to fixedly connect the arc-shaped connecting plate with the upper anchor rod.