CN201010903Y

CN201010903Y - Ground anchor with earth-breaking tip

Info

Publication number: CN201010903Y
Application number: CNU2007200950048U
Authority: CN
Inventors: 潘以恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-19
Filing date: 2007-01-19
Publication date: 2008-01-23
Anticipated expiration: 2017-01-19

Abstract

An earth anchor has a needle which has a function of breaking ground, and a component of the spiral earth anchor needle is designed for the manufacture of the earth anchor. The earth anchor with a needle which has a function of breaking ground includes an earth anchor needle, an earth anchor lever and an earth anchor piece. The earth anchor is characterized in that: partial helicoid of the lower end of the earth anchor extends downward along with the earth anchor to the earth anchor needle. The spiral earth anchor needle includes a big end up cone and is characterized in that the outer surface of the cone has a spire piece. The earth anchor with a needle which has a function of breaking ground can break earth loosely and directly chisel in earth before the earth anchor piece contacts the ground, so as to avoid the working procedure of digging pits to make the earth anchor piece enter in earth before drilling the earth anchor.

Description

A kind of tip has the earth anchor of the function of breaking ground

(1) technical field

The utility model relates to a kind of screw-in earth anchor and earth anchor point member, to the earth anchor particularly suitable that often needs in all kinds of engineering constructions, particularly oil drilling or the well workover construction to screw in or trip out.

(2) background technology

Earth anchor is that a kind of stretching into undergroundly is generally used for fixed mast, pylon, derrick guy wire for ground installation provides the anchor tool of stress point, and surface line perhaps is used for the grappling of interim stringing bar bottom.With finishing, earth anchor can reclaim.

Existing a kind of screw-in earth anchor as shown in Figure 1, as a king bolt, by the earth anchor point, anchor pole (being equivalent to lead screw), earth anchor sheet (be spiral, be equivalent to screw thread) and earth anchor ear (being used for fixing ground installation) or other ground handling devices formation.Anchor pole upper end, ground is connected with earth anchor ear or other ground handling device, anchor pole lower end, the ground earth anchor point of ining succession, earth anchor sheet be welded on usually anchor trend, than the high slightly position of earth anchor point.

The earth anchor point profile of existing earth anchor is a bullet, makes with two kinds of methods usually.First method is directly to make on the ground anchor pole, and this is because the ground anchor pole substitutes with pipe when thick usually, can by electrogas welding directly the tube end cutting, crooked, weld out approximate conical earth anchor point.Second method is to make a conical earth anchor point member separately, and it is welded on anchor pole lower end, ground.

The major defect that existing earth anchor in use exists is: the earth anchor point does not have the function of breaking ground, and must dig a hole on the ground earlier when boring earth anchor, allows the earth anchor sheet sink to earlier in the soil, could creep into earth anchor downwards.

(3) summary of the invention

Main purpose of the present utility model is: realize a kind of ground anchor structure that need not dig pit and just can creep into.

Second purpose of the present utility model is: make things convenient for the making of the earth anchor of mentioning in first purpose, realize a kind of earth anchor point member with the function of breaking ground.

First purpose of the present utility model is achieved in that a kind of tip has the earth anchor of the function of breaking ground, contain the earth anchor point of ground anchor pole and lower end thereof and be welded on the helical earth anchor sheet of ground anchor trend, it is characterized in that: a part of helicoid of earth anchor sheet lower end extends downward the earth anchor point along the ground anchor pole.

Because a part of helicoid of earth anchor sheet lower end continues to extend downward the earth anchor point along the ground anchor pole, in the outside of earth anchor point a flight has just been arranged, when earth anchor point kiss the earth and when rotating, the flight in its outside is just as drag bit, can cut and broken mellow soil, the guiding earth anchor creeps into downwards, participates in creeping into of earth anchor until earth anchor sheet also kiss the earth.Such earth anchor need not be digged pit and just can be crept into, and can save working strength of workers, can also improve the operating efficiency that earth anchor creeps into.

Consider the convenience of making above-mentioned earth anchor, the part that the earth anchor sheet can be extended downwards is combined into an earth anchor point member that independently has the function of breaking ground with the earth anchor point.

Second purpose of the present utility model is achieved in that a kind of screw anchor point, comprises a up big and down small cone, it is characterized in that: contain a flight on the external surface of cone.Owing to contain flight on the external surface of cone, in rotary course, it can cut with broken mellow soil to advance as drag bit, and the guiding earth anchor creeps into downwards.The conical section of screw anchor point is connected with anchor pole lower end, ground, the flight of screw anchor point upper end is connected with the lower end of earth anchor sheet has just constituted the earth anchor that the tip has the function of breaking ground.

(4) description of drawings

Following figure is a schematic diagram.

Fig. 1 is a kind of structure chart of existing earth anchor;

Fig. 2 is the structure chart that the tip has the earth anchor of the function of breaking ground;

Fig. 3 is the structure chart of screw anchor point;

Fig. 4 is to be the structure chart that tip that member is made has the earth anchor of the function of breaking ground with the screw anchor point.

Among the figure: 1. earth anchor point, 2. anchor pole, 3. earth anchor sheet, 4. earth anchor ear, 5. cone, 6. flight, 7. welding chamfering.

(5) specific embodiment

Below in conjunction with accompanying drawing the utility model is specifically described.

Tip as shown in Figure 2 has the earth anchor of the function of breaking ground, and contains the earth anchor point 1 of ground anchor pole 2 and lower end thereof and is welded on the helical earth anchor sheet 3 in anchor pole 2 bottoms, ground.Ground anchor pole 2 can substitute with pipe, and earth anchor point 1 can be the bullet of making on ground anchor pole 2, also can be the independent earth anchor point member that is welded on the ground anchor pole 2.Earth anchor sheet 3 is connected anchor pole 2 bottoms, ground, and than the high slightly position of earth anchor 1 point, a part of helicoid of earth anchor sheet 3 lower ends extends downward earth anchor point 1 along ground anchor pole 2.

Consider the convenience of making above-mentioned earth anchor, the part that the earth anchor sheet can be extended downwards is combined into an independently screw anchor point member with the earth anchor point.

Screw anchor point as shown in Figure 3 can be shaped by hot investment casting, and it comprises a up big and down small cone 5, contains a flight 6 on the external surface of cone 5, and the lower end of flight 6 is near the tip of cone 5.The width of flight 6 is can be up and down the same, also can be wide at the top and narrow at the bottom, and the narrower 6 pairs of geostatic pressures of flight in bottom are bigger, the better effects if of breaking ground under identical earth anchor action of gravity.In order to save material, cone 5 can be made the thin-wall member of hollow.For the ease of welding, can there be welding chamfering 7 upper end of cone 5.

As shown in Figure 4, the earth anchor that the tip that constitutes with screw anchor point and existing ground anchor pole, earth anchor sheet has the function of breaking ground is to make the easier method of this earth anchor.Can be alignd with the lower end of earth anchor sheet 3 in the upper end of flight 6 again or further welding earlier with the cone 5 of screw anchor point and the lower end welding of ground anchor pole 2 during assembling, then earth anchor sheet 3 and ground anchor pole 2 are welded together.Upper end at the ground anchor pole can be welded earth anchor ear 4 or connect other ground handling device according to the instructions for use of earth anchor.

Claims

1. earth anchor that the tip has the function of breaking ground, contain the earth anchor point (1) of ground anchor pole (2) and lower end thereof and be welded on ground anchor pole (2) the helical earth anchor sheet in bottom (3), it is characterized in that: a part of helicoid of earth anchor sheet (3) lower end extends downward earth anchor point (1) along the ground anchor pole.

2. a screw anchor point comprises a up big and down small cone (5), it is characterized in that: contain a flight (6) on the external surface of cone (5).

3. screw anchor point according to claim 2 is characterized in that: cone (5) can be the thin-wall member of hollow.

4. screw anchor point according to claim 2 is characterized in that: can there be welding chamfering (7) upper end of cone (5).

5. screw anchor point according to claim 2 is characterized in that: the width of flight (2) can be the same up and down, also can be wide at the top and narrow at the bottom.