CN211975017U

CN211975017U - Disposable enlarging anchor head device

Info

Publication number: CN211975017U
Application number: CN202020605517.4U
Authority: CN
Inventors: 郑亮; 潘希军; 郁红飞
Original assignee: Wuhan Geological Prospecting & Foundation Engineering Co ltd
Current assignee: Wuhan Geological Prospecting & Foundation Engineering Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-20
Anticipated expiration: 2030-04-21

Abstract

The utility model provides a one-off anchor head enlarging device, which comprises a cylinder, a drill bit, a cylinder and a connecting mechanism; the drill bit is fixedly arranged at the bottom of the cylinder; the cylinder body is slidably arranged in the cylinder body in a penetrating way; the connecting mechanism comprises a first connecting rod, a second connecting rod, a first hinge, a second hinge and a third hinge; one end of the first connecting rod is rotatably arranged on the column body through a third hinge, and the other end of the first connecting rod is rotatably arranged in the middle of the second connecting rod through the first hinge; one end of the second connecting rod is rotatably arranged on the cylinder body through a second hinge; be provided with the spring in the barrel, the both ends of spring are connected with cylinder and drill bit respectively, and the outer wall of cylinder is provided with the arch, and the barrel inner wall is provided with and is used for cooperating in order to lock dead spring fastener with the cylinder with protruding. The utility model discloses a disposable anchor head that enlarges device modern design, the practicality is strong.

Description

Disposable enlarging anchor head device

Technical Field

The utility model relates to an engineering machine tool field especially relates to a disposable anchor head device that enlarges.

Background

In various foundation pit projects and slope support projects, anchor rod and anchor cable construction processes are often used, and the anti-pulling force of the anchor rod and the anchor cable is improved by adopting a mode of forming an enlarged head by enlarging a base and forming a hole. The existing anchor head drilling tool is not provided with an expanding mechanism generally, and the existing anchor head drilling tool cannot be matched with the expanded hole bottom to form effective anchoring after cement grouting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, a disposable anchor head device that enlarges is proposed.

The utility model provides a technical scheme as follows:

the utility model provides a one-off anchor head enlarging device, which comprises a cylinder, a drill bit, a cylinder and a connecting mechanism; the drill bit is fixedly arranged at the bottom of the cylinder; the cylinder body is slidably arranged in the cylinder body in a penetrating way;

the connecting mechanism comprises a first connecting rod, a second connecting rod, a first hinge, a second hinge and a third hinge; one end of the first connecting rod is rotatably arranged on the column body through a third hinge, and the other end of the first connecting rod is rotatably arranged in the middle of the second connecting rod through the first hinge; one end of the second connecting rod is rotatably arranged on the cylinder body through a second hinge;

be provided with the spring in the barrel, the both ends of spring are connected with cylinder and drill bit respectively, and the outer wall of cylinder is provided with the arch, and the barrel inner wall is provided with and is used for cooperating in order to lock dead spring fastener with the cylinder with protruding.

The utility model discloses among the foretell disposable anchor head device that enlarges, the cylinder top is offered in the axial screw hole that is used for being connected with the drilling rod.

The utility model discloses among the foretell disposable anchor head device that enlarges, still establish the flange on the cylinder including fixed cover, the flange evenly sets up a plurality of connecting holes that supply the anchor rope to connect in its circumference.

In the above-mentioned disposable anchor head enlarging device of the present invention, the drill bit is hemispherical or tapered.

In the above-mentioned disposable anchor head enlarging device of the present invention, there are a plurality of connecting mechanisms; the plurality of connecting mechanisms are uniformly distributed around the axial direction of the column body.

The utility model discloses an once only enlarge anchor head device and remove to the barrel through the cylinder for the connecting portion of head rod, second connecting rod outwards open, through crowded stratum soil and the rock of splitting of drill bit and second connecting rod. Simultaneously, through setting up first hinge in the middle part of second connecting rod for after the connecting portion of first connecting rod, second connecting rod expand, the outer end of second connecting rod can insert in the stratum soil, further improves the anchor power of once only enlarging anchor head device anchor in soil, also can avoid first hinge to receive too much wearing and tearing. In addition, the cylinder moves the compression spring to the whole body, and simultaneously, the bulge is matched with the spring clamping piece to lock the cylinder and then keep the locked state of the cylinder. Through the design that a plurality of coupling mechanisms wind the axial evenly distributed of cylinder for the disposable anchor head device that enlarges the end drilling application of force is more even, has also weakened the adverse effect of the reaction force of the soil layer or the stratum that receive when drilling to disposable anchor head device that enlarges. The utility model discloses a disposable anchor head that enlarges device modern design, the practicality is strong.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 shows a schematic structural view of a disposable enlarged anchor head device according to a preferred embodiment of the present invention;

FIG. 2 shows a first in-use reference view of the disposable enlarged anchor head apparatus shown in FIG. 1;

FIG. 3 shows a second use condition reference view of the disposable enlarged anchor head apparatus shown in FIG. 1;

FIG. 4 shows a third use condition reference view of the disposable enlarged anchor head apparatus shown in FIG. 1;

figure 5 shows a fourth use condition reference view of the disposable enlarged anchor head apparatus shown in figure 1.

Detailed Description

In order to make the technical purpose, technical solution and technical effects of the present invention more clear so as to facilitate those skilled in the art to understand and implement the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-5, fig. 1 is a schematic structural view of a disposable enlarged anchor head device according to a preferred embodiment of the present invention; FIG. 2 shows a first in-use reference view of the disposable enlarged anchor head apparatus shown in FIG. 1; FIG. 3 shows a second use condition reference view of the disposable enlarged anchor head apparatus shown in FIG. 1; FIG. 4 shows a third use condition reference view of the disposable enlarged anchor head apparatus shown in FIG. 1; figure 5 shows a fourth use condition reference view of the disposable enlarged anchor head apparatus shown in figure 1. Specifically, the disposable anchor head expanding device comprises a cylinder body 2, a drill bit 4, a cylinder body 1 and a connecting mechanism; the drill bit 4 is fixedly arranged at the bottom of the cylinder 2; the cylinder 1 can be slidably arranged in the cylinder 2 in a penetrating way;

the connecting mechanism comprises a first connecting rod 31, a second connecting rod 32, a first hinge 33, a second hinge 34 and a third hinge 35; one end of the first connecting rod 31 is rotatably mounted on the column body 1 through a third hinge 35, and the other end is rotatably mounted in the middle of the second connecting rod 32 through a first hinge 33; one end of the second connecting rod 32 is rotatably mounted on the cylinder 2 through a second hinge 34;

be provided with spring 22 in the barrel 2, the both ends of spring 22 are connected with cylinder 1 and drill bit 4 respectively, and the outer wall of cylinder 1 is provided with arch 14, and barrel 2 inner wall is provided with and is used for cooperating with arch 14 in order to lock dead spring fastener 21 of cylinder 1.

In the above technical scheme, after the anchor cable construction pore-forming forms the enlarged head to the assigned position, change the disposable anchor head device that enlarges of this embodiment, and install anchor cable 5 on the connecting hole 13 of ring flange 12, the disposable anchor head device that enlarges of this embodiment 5 and this embodiment passes through drilling rod 6 and goes down to the enlarged head bottom together, when drill bit 4 reaches enlarged head bottom soil layer or rock stratum and receives pressure, the rig passes through drilling rod 6 and applys power for the disposable anchor head device that enlarges, cylinder 1 removes to drill bit 4, make the connecting portion of head 31, second connecting rod 32 outwards open, crowd through drill bit 4 and second connecting rod 32 and split stratum soil and rock. Meanwhile, the first hinge is arranged in the middle of the second connecting rod 32, so that after the connecting parts of the first connecting rod 31 and the second connecting rod 32 are unfolded, the outer end of the second connecting rod 32 can be inserted into the stratum soil, the anchoring force of the anchor head device anchored in the soil is further improved, and the first hinge can be prevented from being worn too much. Subsequently, the drill rod 6 is disconnected from the threaded hole 11 through reverse rotation, the anchor cable 5 and the disposable anchor head expanding device of the embodiment are fixed at the bottom of the expanded head hole, and then cement grouting is performed at the bottom of the expanded head hole, so that an expanded anchoring body can be formed, and anchoring force is effectively provided.

Preferably, the protrusion 14 has a triangular shape, and the spring catch 21 has a triangular shape corresponding to the protrusion 14. During the approach of the cylinder 1 to the drill 4, the projection 14 will first come into contact with the spring catch 21; then, as the projection 14 slides, the spring catch 21 is gradually compressed; finally, after the protrusion 14 slides over the spring catch 21, the spring catch 21 is restored by the elastic force of the spring 22, thereby locking the protrusion 14. After the projection is matched with the spring clamping piece to lock the cylinder, the elastic force of the spring ensures the locked state of the cylinder.

Further, a threaded hole 11 for connecting with the drill rod 6 is axially formed in the top of the column body 1. It will be appreciated that in other embodiments, the drill rod 6 may be connected to the drill rod 6 by providing an external thread on the outer surface of the column 1, and the drill rod 6 may be disconnected from the threaded hole or the external thread by reversing the thread.

Further, the connecting mechanism is provided with a plurality of connecting mechanisms; a plurality of connection means are evenly distributed around the axial direction of the column 1. Through the design, the force application of the bottom expanding drill hole of the one-time expanding anchor head device is more uniform, and the adverse effect of the reacting force of the soil layer or the rock stratum on the one-time expanding anchor head device during drilling is weakened.

Further, the one-time anchor head expanding device further comprises a flange 12 fixedly sleeved on the column body 1, and a plurality of connecting holes 13 for connecting the anchor cables 5 are uniformly formed in the circumferential direction of the flange 12. Further, the drill 4 has a hemispherical shape or a conical shape.

The utility model discloses preferred embodiment's disposable working process who enlarges anchor head device is: after the anchor rod or the anchor cable is formed into a hole to a designated position, the disposable expansion anchor head device is replaced, the anchor cable 5 is installed on the connecting hole 13 of the flange plate 12, the anchor cable 5 and the disposable expansion anchor head device of the embodiment are simultaneously lowered to the bottom of the expansion head through the drill rod 6, when the drill bit 4 bears pressure on a soil layer or a rock layer, a drilling machine applies power to the disposable expansion anchor head device through the drill rod 6, the cylinder 1 extrudes the spring 22 and is close to the drill bit 4, so that the connecting parts of the first connecting rod 31 and the second connecting rod 32 are outwards unfolded, the stratum soil and rock are squeezed and cracked on the outer side surface of the drill bit 4 and the outer side surface of the second connecting rod 32, after the bottom expansion construction reaches a designated position, the protrusion 14 is matched with the spring clamping piece 21 to lock the cylinder 1, and the. And then, the drill rod 6 is disconnected with the threaded hole 11 through reverse rotation, the anchor cable 5 and the disposable anchor head expanding device are also fixed at the bottom of the expanded head hole, and then cement grouting is performed at the bottom of the expanded head hole, so that an expanded anchoring body can be formed, and the anchoring force is effectively provided.

While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A disposable anchor head expanding device is characterized by comprising a cylinder (2), a drill bit (4), a cylinder (1) and a connecting mechanism; the drill bit (4) is fixedly arranged at the bottom of the cylinder body (2); the cylinder (1) can be slidably arranged in the cylinder (2) in a penetrating way;

the connecting mechanism comprises a first connecting rod (31), a second connecting rod (32), a first hinge (33), a second hinge (34) and a third hinge (35); one end of the first connecting rod (31) is rotatably arranged on the column body (1) through a third hinge (35), and the other end of the first connecting rod is rotatably arranged in the middle of the second connecting rod (32) through a first hinge (33); one end of the second connecting rod (32) is rotatably arranged on the cylinder body (2) through a second hinge (34);

be provided with spring (22) in barrel (2), the both ends of spring (22) are connected with cylinder (1) and drill bit (4) respectively, and the outer wall of cylinder (1) is provided with arch (14), and barrel (2) inner wall is provided with and is used for cooperating spring fastener (21) dead with the lock with cylinder (1) with arch (14).

2. A disposable enlarged anchor head device according to claim 1, wherein the top of the column (1) is provided with a threaded hole (11) axially for connection with the drill rod (6).

3. The disposable enlarged anchor head device according to claim 2, further comprising a flange (12) fixedly fitted over the post body (1), the flange (12) being provided with a plurality of connecting holes (13) uniformly formed in a circumferential direction thereof for connecting the anchor cables (5).

4. A disposable enlarged anchor head device according to claim 1, characterised in that the drill bit (4) is hemispherical or conical.

5. The disposable enlarged anchor head set of claim 1, wherein there are a plurality of attachment mechanisms; the connecting mechanisms are uniformly distributed around the axial direction of the column body (1).