CN112854213B

CN112854213B - Prevent wind and draw broad ground anchor

Info

Publication number: CN112854213B
Application number: CN202110332855.4A
Authority: CN
Inventors: 陈荣; 何海兵; 刘腾宇; 杨建勇; 吴晓丹; 汪帆; 沙凇卫
Original assignee: Maoming Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Maoming Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-03-11
Anticipated expiration: 2041-03-29
Also published as: CN112854213A

Abstract

The invention relates to the technical field of ground anchors and discloses a wind-proof pull-out ground anchor which comprises a drill pipe and a tension rod positioned in the drill pipe, wherein a conical drill bit is arranged at the bottom of the drill pipe, a pipe body is of a hollow pipe structure, an upper-layer bearing block is arranged at a position close to the top end of the pipe body, a height adjusting mechanism is arranged on the upper-layer bearing block and used for penetrating and fixing the tension rod, a plurality of upward-tilted wall breaking hooks are movably buckled at the middle part of the tension rod, and the other end of each wall breaking hook penetrates through a through hole reserved in the pipe wall of the drill pipe and extends outwards and upwards; when the tension rod is at the lowest position, the outer end part of the wall breaking hook is close to the outer side wall of the drill pipe; when the tension rod is lifted upwards, the wall breaking hook turns downwards along the through hole of the pipe wall as a fulcrum, so that the soil is transversely grabbed. The device has the advantages of reasonable design, light and portable whole body, convenient transportation and installation, time saving and labor saving.

Description

Prevent wind and draw broad ground anchor

Technical Field

The invention relates to the technical field of ground anchors, in particular to a windproof widening ground anchor.

Background

The wind-proof wire drawing device for the power distribution overhead line mainly plays a role in keeping the stability of an electric pole and is an important device for protecting power equipment from being affected by typhoon disasters. The installation method is that the pole is perpendicular to an overhead line, one end of the pole is installed at the tail end of the pole, the other end of the pole is installed underground, and the pole is arranged in a herringbone mode from side to side, so that the pole is stabilized, and accidents that the two sides of the pole are blown off by typhoons and the pole falls are avoided.

The device for installing one end of the windproof stay wire of the existing power distribution overhead line underground respectively comprises a cement ground anchor finished product prefabricated by a manufacturer, a hot-galvanized iron pull rod and the like. The length and the width of a cement ground anchor finished product are generally 80cm by 40cm, the length of an iron pull rod is generally 250cm, 50-70cm is reserved for the iron pull rod during installation, and a ground anchor pit with the length not less than 80cm by 40cm by 180cm is dug during installation and construction to bury the underground part.

The foregoing mounting practice has the following problems: 1. the adoption of manual excavation causes large construction workload, long construction time consumption and low working efficiency, and the excavation of a group of windproof stay wire ground anchors can be finished even by three persons working for one day under the condition of hard geology; 2. when the hook machine is adopted for excavation, crops and fields are often damaged, great influence is caused on the environment, damage compensation is involved, time is consumed for negotiation and communication with the masses in the early stage, and the input manpower and material resources are great; 3. the cement ground anchor finished product prefabricated by a manufacturer is large in size, heavy in weight and difficult to transport, particularly, the cement ground anchor finished product is difficult to transport at an installation place where a vehicle cannot reach, and even workers are injured by smashing or scratched.

In conclusion, the existing ground anchor has the defects of high construction difficulty, long time consumption, damage to the environment, high cost of manpower and material resources, easy injury to personnel and the like during installation and construction.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a windproof widening anchor which is simple in structure, convenient to install and easy to adjust, so as to solve the problem of construction difficulty in the prior art.

The above purpose of the invention is realized by the following technical scheme:

the utility model provides a prevent wind and draw broad ground anchor, includes and bores the pipe and is located bore intraductal tension bar, the bottom that bores the pipe is equipped with the conical bit, and the pipe shaft is the hollow tube structure, is close to the position department on pipe shaft top is equipped with upper strata load piece, upper strata load piece is equipped with height adjusting mechanism and is used for wearing to establish and fix the tension bar, makes the tension bar can be followed the length direction of boring the pipe is pulled from top to bottom, the middle part activity lock joint of tension bar has the broken wall hook of a plurality of perk upwards, the broken wall hook other end passes the through-hole that the pipe wall of boring reserved and outwards extends up;

when the tension rod is at the lowest position, the outer end part of the wall breaking hook is close to the outer side wall of the drill pipe; when the tension rod is lifted upwards, the wall breaking hook takes the through hole as a fulcrum and turns downwards along the situation, so that the soil is transversely grabbed.

As a further optimization scheme of the invention, the height adjusting mechanism comprises a nut which is arranged in the middle of the upper bearing block in a penetrating manner, and an external thread which is arranged on the upper part of the tension rod, wherein the external thread corresponds to the size of the nut, the tension rod is in threaded connection with the upper bearing block, and the position height of the tension rod is adjusted by changing the screwing direction.

As a further optimized scheme of the invention, the wall breaking hook is in the shape of a crescent moon, the end part of the wall breaking hook positioned in the drilling ground pipe is movably sleeved on the tension rod through an annular bayonet, and the tension rod is provided with limiting rings above and below the annular bayonet and is used for driving the wall breaking hook to turn back and forth in the process of up-and-down displacement.

As a further preferable aspect of the present invention, the number of the wall breaking hooks is three or more, and the wall breaking hooks are distributed at equal angles around the axis of the drill pipe and have different heights from each other.

As a further optimized scheme of the invention, a hanging ring for fixing the pull rope is arranged at the top of the tension rod.

As a further optimized scheme of the invention, a groove is arranged in the conical drill bit, the groove extends along the length direction of the drill pipe, and the bottom of the tension rod is movably inserted in the groove.

As a further optimized scheme of the invention, the tension rod is cylindrical, and the aperture of the groove is slightly larger than the diameter of the tension rod.

As a further optimization of the invention, the tension rod and the drill pipe are arranged along the same axis.

As a further optimization scheme of the invention, the tip end and the outer side wall of the conical drill bit are provided with a plurality of fine holes for draining water.

As a further optimization scheme of the invention, the drilling pipe, the tension rod and the wall breaking hook are made of steel.

Compared with the prior art, the invention has the beneficial effects that:

compared with the traditional ground anchor device formed by combining a ground anchor rod and a spiral sheet, the ground anchor device is characterized in that in view of the lever principle, a wall breaking hook is movably buckled on a tension rod, and the tension rod is pulled up and down to drive the wall breaking hook to turn by taking a through hole drilled on the side wall of a ground pipe as a fulcrum;

when the tension rod is in a low position, the end part of the wall breaking hook positioned outside the drilling pipe is tightly attached to the pipe wall, so that the soil inserting operation of the device is facilitated; when the tension rod is lifted upwards, the wall breaking hook is turned downwards relative to the side wall of the drill pipe, so that the effect of widening outwards is achieved, and further effective transverse ground grabbing force is applied to soil;

in the process, the tension rod is screwed up and down to realize the up-and-down displacement, and the thread adjustment can not only ensure the stability of the movement and provide acting force with enough strength, but also prevent the accidental rebound of the ground anchor by means of tight meshing force;

the device has the advantages of reasonable design, light whole, convenient transportation and installation, time and labor saving, and especially has positive application and popularization values in the aspect of the construction of the distribution overhead line in the field of electric power system engineering construction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present embodiment;

in the figure, 1-drill the ground; 1 a-ring pore; 2-a tension bar; 2 a-external thread; 3-a cone drill bit; 3 a-a groove; 3 b-pores; 4-upper bearing block; 5-a nut; 6-breaking the wall hook; 7-a limit ring; 8-hoisting rings; 9-lower bearing plate; 91-a through hole; 10-pipe code; 11-reinforcing ribs.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, the present embodiment provides a wind-proof pull-out ground anchor, which includes a drill pipe 1 and a tension rod 2, wherein a pipe body of the drill pipe 1 is a hollow pipe structure, a conical drill bit 3 is fixedly connected to a bottom end of the pipe body, an upper bearing block 4 is disposed at a position close to a top end of the pipe body, an outer edge of the upper bearing block 4 is fixedly connected to an inner wall of the pipe body, a hole is formed in a middle portion of the upper bearing block 4, a nut 5 is installed on the hole in a penetrating manner, the nut 5 and the drill pipe 1 are disposed along a same axis, an external thread 2a corresponding to a size is disposed on an upper portion of the tension rod 2, so that the tension rod 2 and the upper bearing block 4 are screwed together through a thread, and according to a structural characteristic of the threaded connection, a position height of the tension rod 2 can be directly adjusted by changing a screwing direction, and therefore, the nut 5 in the present embodiment not only plays a role of guiding and positioning, and can also be used for controlling the smooth lifting of the tension bar 2.

The cone drill bit 3 is coaxial with the drill pipe 1, the cone drill bit 3 is provided with a groove 3a along the drilling direction at the axis, the aperture of the groove 3a is slightly larger than the diameter of the bottom of the tension rod 2, and the depth of the groove 3a is slightly larger than the lifting range of the tension rod 2. The arrangement is that the bottom of the tension rod 2 is movably inserted into the groove 3a all the time, so that the motion of the tension rod 2 is further guided, the rod body is prevented from shaking by a large margin, the external impact force of the conical drill bit 3 can be enhanced, and the whole structure is more stable.

The middle part activity lock joint of tension bar 2 has the broken wall hook 6 of a plurality of perk that makes progress, broken wall hook 6 other end passes bore the annular ring that the pipe wall was reserved and outwards extend upwards. Specifically, the wall breaking hook 6 is in the shape of a meniscus, and the end part of the wall breaking hook 6 located in the drill pipe 1 is movably sleeved on the tension rod 2 through an annular bayonet (not shown in the figure), and the annular bayonet is connected in a loose and loose buckling manner, so that the wall breaking hook 6 is effectively prevented from being thrown away and buckled, and the movement of the wall breaking hook 6 is not limited; in addition, the tension rod 2 is provided with limiting rings 7 above and below the annular bayonet, and the limiting rings are used for contacting the wall breaking hook 6 in the up-and-down displacement process so as to drive the wall breaking hook to turn over back and forth.

The top of the tension rod 2 is provided with a hanging ring 8 for fixing a pull rope, the whole tension rod 2 is lifted through the thread twisting between the tension rod and the nut 5, and when the tension rod 2 is at the lowest position, the outer end part of the wall breaking hook 6 is close to the outer side wall of the drill pipe 1; when the tension rod 2 is lifted upwards in a rotating mode, the wall breaking hook 6 outside the pipe turns downwards along the same direction by taking the annular hole 1a as a fulcrum, and therefore the soil is grabbed transversely.

It will be appreciated that the wall breaking hook 6 is proximate to the outer wall of the tubular body in the initial position, with the aim of reducing the surface area and to some extent facilitating smooth operation of the earth boring operation; in order to achieve the most effective grip, the angle of rotation of the wall-breaking hook 6 is preferably between 50 and 100 °. Firstly, the thread length of the tension rod 2 is set in advance, namely the lifting range of the tension rod 2 is set, and the turning amplitude of the wall breaking hook 6 is controlled, but the method needs to measure the position relation of a plurality of components, and the implementation procedure is relatively complicated; secondly, the requirements are realized by directly controlling the shape of the wall breaking hook 6, and the invention skillfully balances the motion relation of the wall breaking hook 6 and the tension rod 2 by adopting the method, thereby achieving effective and lasting ground gripping effect.

Specifically, the shape of the wall breaking hook 6 is well designed, preferably an irregular crescent shape, from the tube center to the tube outside, the wall breaking hook 6 gradually raises upwards and outwards, the annular hole 1a penetrates through the side wall of the tube body in the period, when the tension rod 2 continuously descends according to the twisting of the screw thread, the wall breaking hook 6 positioned outside the tube can gradually turn upwards to achieve the overall effect of shrinking appearance, when the tension rod 2 descends to a certain position, the wall breaking hook 6 positioned outside the tube can be abutted against the outer wall of the tube, so that the movement of the tension rod 2 is limited reversely, and at the moment, the ground anchor device has the most compact shape and is suitable for drilling into soil; similarly, after the earth anchor device is knocked into the soil, an operator needs to reversely twist the screw thread to drive the tension rod 2 to lift upwards, so that the wall breaking hook 6 positioned outside the pipe is enabled to turn downwards to widen the outside, and when the tension rod 2 is pulled to a certain height, the end part of the wall breaking hook 6 positioned inside the pipe can be abutted against the inner wall of the pipe, so that the maximum amplitude of widening is reversely limited.

Further, the wall-breaking hook 6 is in a sheet shape and should have a certain width in a horizontal plane to increase a hook soil area.

Further, the present embodiment is provided with three wall breaking hooks 6, each of the wall breaking hooks 6 is distributed at equal angles around the axis of the drill pipe 1, that is, arranged at intervals of 120 °, and has different heights from each other; so designed, in order to widen from multiple dimensions, thereby significantly improving grip strength.

Of course, in other embodiments, the wall breaking hooks 6 may be arranged more densely or more loosely according to the actual use environment, and as long as the effect of strong anchoring is achieved by using an approximate shape or an approximate structure, the technical solution of the present invention can be regarded as the content of the present invention, so that the number and the distribution positions of the wall breaking hooks 6 are not specifically limited herein.

In the middle, the size of the ring hole 1a needs to be slightly larger than the broken wall hook 6 to ensure the flexible turning of the broken wall hook 6.

It should be noted that, in order to insert soil efficiently and to screw in and out smoothly, the drill pipe 1 of the present embodiment is cylindrical, and the cone drill 3 is specifically a cone drill. Along bore 1 past extension of pipe, taper drill bit 3 narrows down gradually until forming most advanced to be provided with a plurality of pore 3b on the conical surface lateral wall near most advanced to increase the anchor strength, also do benefit to intraductal drainage simultaneously.

Further, a lower bearing plate 9 with a certain thickness is fixedly arranged between the pipe body of the drilled pipe 1 and the conical drill bit 3, the space of the inner wall of the bottom of the drilled pipe 1 is filled with the lower bearing plate 9, a through hole 91 with the same diameter as that of the groove 3a is formed in the middle of the lower bearing plate, and a plurality of water leaking ports (not shown in the figure) are distributed on the periphery of the lower bearing plate and are communicated with the fine holes 3 b. The lower bearing plate 9 is used as an auxiliary measure for the groove 3a, and mainly aims to further stabilize the lower part of the tension rod 2 and prevent the tension rod 2 from internally deviating in the lifting process.

In addition, because the ground anchor device needs to be strongly knocked by a hammer from top to bottom in the initial installation stage, a ring of pipe joint 10 is fixedly added around the top of the pipe body of the drilling pipe 1 in the embodiment so as to improve the deformation resistance of the pipe orifice; similarly, because the ground anchor device needs to pull the tension rod 2 upwards in the process of widening, the process has to overcome a considerable soil traction force, and in order to prevent the upper bearing block 4 from being pulled, deformed, broken and falling, the bottom wall of the upper bearing block 4 is additionally welded with the reinforcing ribs 11.

In this embodiment, bore pipe 1, tension bar 2, broken wall hook 6 and all adopt steel material to ensure that the product can adapt to abominable changeable field construction environment better.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims

1. The utility model provides a prevent wind and draw broad ground anchor, includes and bores the ground pipe and be located the intraductal tension rod that bores, its characterized in that: the pipe body is a hollow pipe structure, an upper bearing block is arranged at a position close to the top end of the pipe body, the upper bearing block penetrates through and fixes the tension rod through a height adjusting mechanism, so that the tension rod can be pulled up and down along the length direction of the pipe body, the middle part of the tension rod is movably buckled with a plurality of wall breaking hooks which are tilted upwards, and the other ends of the wall breaking hooks penetrate through holes reserved in the pipe wall of the pipe body and extend upwards outwards;

when the tension rod is at the lowest position, the outer end part of the wall breaking hook is close to the outer side wall of the drill pipe; when the tension rod is lifted upwards, the wall breaking hook turns downwards along the through hole of the pipe wall as a fulcrum, so that the soil is transversely grabbed;

broken wall hook is the shape of falcate piece, and it is located the tip in boring the ground pipe is established through annular bayonet socket activity cover on the pull rod, the pull rod is in the upper and lower below of annular bayonet socket all is equipped with the spacing collar for at the in-process of displacement from top to bottom drive broken wall hook makes a round trip to turn.

2. The wind-resistant broad anchor of claim 1, wherein: the height adjusting mechanism comprises a nut and an external thread, the nut is arranged in the middle of the upper bearing block in a penetrating mode, the external thread is arranged on the upper portion of the tension rod, the size of the external thread corresponds to that of the nut, the tension rod is in threaded connection with the upper bearing block, and the position height of the tension rod is adjusted by changing the screwing direction.

3. The wind-resistant broad anchor of claim 1, wherein: the quantity of broken wall hook is more than three, is the equal angle distribution around the axis of brill pipe, and is highly different each other.

4. The wind-resistant broad anchor of claim 1, wherein: and a hanging ring for fixing the pull rope is arranged at the top of the tension rod.

5. The wind-resistant broad anchor of claim 1, wherein: the inside recess that is equipped with of conical bit, the recess is followed the length direction who bores the pipe extends, the activity of tension bar bottom is inserted and is established in the recess.

6. The wind-resistant broad anchor of claim 5, wherein: the tension bar is cylindrical, and the aperture of the groove is slightly larger than the diameter of the tension bar.

7. The wind-resistant broad anchor of claim 6, wherein: the tension rod and the ground drilling pipe are arranged along the same axis.

8. The wind-resistant broad anchor of claim 1, wherein: the tip and the outer side wall of the conical drill bit are provided with a plurality of fine holes for draining water.

9. The wind-resistant broad anchor of claim 8, wherein: the brill manages, tension bar, broken wall hook all adopt steel material.