KR20080081558A

KR20080081558A - An anchor

Info

Publication number: KR20080081558A
Application number: KR1020070021712A
Authority: KR
Inventors: 정시영
Original assignee: 정시영
Priority date: 2007-03-06
Filing date: 2007-03-06
Publication date: 2008-09-10

Abstract

An anchor is provided to enable installation without a connection member by covering an insertion groove of an anchor bolt with a sleeve having a protrusion engaged with a groove of the anchor bolt. An anchor comprises an expansion plug(10), an anchor bolt(20), and a sleeve(30). The expansion plug is formed like a rhombic shape. The anchor bolt includes an insertion groove(21), more than one slit(21a), and catching groove(23). The expansion plug is inserted in the insertion groove. The slits are formed around the outer peripheral surface of the insertion groove. The catching groove is formed at one part of the outer peripheral surface of the anchor bolt. The sleeve is a hollow tube having at lest one slit part(30a). A first catching protrusion is formed opposite to the first catching groove inside the sleeve.

Description

Anchor {An Anchor}

1 is an exploded perspective view showing a coupled state of a detachable anchor according to the prior art.

Figure 2 is an exploded perspective view showing a combined state of the integrated anchor according to the prior art.

3 is an exploded perspective view showing a coupled state of the anchor according to the first embodiment of the present invention.

4A, 4B and 4C are cross-sectional views illustrating a construction state using an anchor according to a first embodiment of the present invention.

5 is a cross-sectional view showing a construction state using an anchor according to a second embodiment of the present invention.

10: expansion plug 10a, 23: locking groove

20: anchor bolt 21: insertion groove

21a, 30a: incision 21b, 33: locking projection

25: blow portion 30: sleeve

40: washer member 50: nut member

60 wall 65 insertion hole

The present invention relates to an anchor, and more particularly, to an anchor that can satisfy both the construction (comfort), which is an advantage of the conventional detachable anchor, and the load strength, which is an advantage of the integrated anchor.

When building a building, etc., after completing the shape of the building with concrete, there are many cases in which a finishing material such as marble is applied to the wall of the concrete wall to make the building look luxurious.

In general, anchors are used to connect the walls and finishes to transfer the vertical load of the building finish to the walls to maintain stability.

Since such anchors must be fixed to withstand the load of the finishing material attached to the wall, separate anchors and integral anchors are used according to the weight of the finishing material.

Hereinafter, with reference to the drawings will be described the configuration and construction method of the separate anchor and integrated anchor according to the prior art.

1 is an exploded coupling diagram showing a coupling state of a detachable anchor according to the prior art, Figure 2 is an exploded coupling diagram showing a coupling state of the integrated anchor according to the prior art.

As shown in FIG. 1, the detachable anchor according to the related art has an expansion plug 100 having a shape of a light beam subsoil, a hollow structure, and a cutout 210 is formed at one side, and a thread (not shown) is formed at an inner circumferential surface of the other side. C) is formed on the sleeve 200 and the outer circumferential surface is formed with a screw thread anchor bolt 300 is formed at one end of the strike portion 310.

During construction, a portion of the expansion plug 100 is inserted into one side where the cutout 210 of the sleeve 200 is formed, and the anchor bolt 300 is provided to be fixed by being fixed to the other side. It is inserted from one end into which the expansion plug 100 is inserted into the insertion hole formed in the wall.

Thereafter, hitting the striker 310 of the anchor bolt 300 from the outside, thereby expanding the anchor plug 300, the expansion plug 100 is inserted into the sleeve 200, the expansion plug 100 is inserted As the diameter of the) increases, the cutout portion 210 of the sleeve 200 expands to be in close contact with the inner circumferential surface of the insertion hole to fix the anchor to the insertion hole.

After the separable anchor is fixed, the finishing bolt (not shown) is connected to the anchor bolt 300 protruding out of the wall using a bracket (not shown), and is fixed by fastening the nut member 500 to the anchor bolt 300. , The washer member 400 is interposed between the bracket and the nut member 500 to be more firmly fixed.

However, such a detachable anchor is fixed only by the expansion force of the cutout 210 of the sleeve 200 by external impact, so that the fixing force is relatively weak, and when a large load is applied, the expanded cutout 210 of the sleeve 200 is It may be separated from the insertion hole formed in the concrete wall and is generally used in the construction of lightweight finishes.

Meanwhile, as shown in FIG. 2, the integrated anchor according to the related art has an anchor bolt 700 having a hollow structure and an incision at one side thereof, in which an extension plug 710 is integrally formed at one end and a thread is formed at a part of an outer circumferential surface thereof. 610 is configured to include a sleeve 600 is formed.

At the time of construction, the anchor bolt 700 is inserted into the insertion hole from one end in which the expansion plug 710 is formed to be coupled to penetrate the sleeve 600.

Thereafter, the connecting member (not shown) having a hollow structure having the same diameter as that of the sleeve 600 penetrates through the anchor bolt 700 and hits the connecting member with a hammer or the like from the outside.

The sleeve 600 is moved forward by the hitting of the connecting member toward the expansion plug 710, and as the diameter of the expansion plug 710 increases, the cutout 610 of the sleeve 700 is extended to the inner circumferential surface of the insertion hole. Closely fixed to the anchor hole.

After the nut member 500 is fastened and fastened to one end of the anchor bolt 700 protruding to the outside, the sleeve 600 moves toward the expansion plug 710, and as the diameter of the expansion plug 710 increases. The cutout 610 of the sleeve 600 is further extended, and by this additional expansion force, the integrated anchor is more firmly fixed to the insertion hole.

The integrated anchor is fixed to the insertion hole due to the expansion of the sleeve 600 by hitting, and the sleeve 600 is further expanded while moving forward by the fastening of the nut member 500 to be more firmly fixed to the insertion hole. Since the expansion plug 710 is formed integrally with the anchor bolt 700, it can withstand a relatively large load and is commonly used when constructing a finishing material for weight.

In general, the construction of the finishing material is performed in the air outside the building, so it is very cumbersome to remove the connecting member after inserting the connecting member at each anchor and striking the connecting member. There is a problem that the sleeve 600 is separated from the anchor bolt 700 during the operation, the operation is delayed.

The present invention has been made to solve the above problems, an object of the present invention is to penetrate through the anchor bolt so that the sleeve surrounds the insertion groove, the sleeve is hooked inward to the position corresponding to the locking groove of the anchor bolt By forming a group so that the sleeve can be moved only to the expansion plug side can be installed without using the connecting member to provide an easy anchor construction.

Another object of the present invention is that the insertion groove is expanded due to the insertion of the expansion plug and the incision of the sleeve is expanded by the expansion of the insertion groove is fixed to the insertion hole, the incision is further extended while the sleeve is moved forward by the fastening of the nut To provide a more secure anchor to the insertion hole.

According to an aspect of the present invention for achieving the above object, an expansion plug having a shape of ordinary light beam narrowing, an insertion groove is formed at one end is received, the at least one cut in the outer periphery of the insertion groove It is formed, the anchor bolt is formed on the outer peripheral surface of the first bolt and the hollow body formed inside the at least one cut portion is formed at one end, the first locking projection in the position corresponding to the first locking groove inward An anchor is formed and includes a sleeve that penetrates and is coupled to the anchor bolt.

Here, at least one second locking groove is formed on an outer circumferential surface of the expansion plug, and a second locking protrusion corresponding to the second locking groove is formed on an inner circumferential surface of the anchor bolt to insert the second plug when the expansion plug is inserted. The engaging projection engages with the second engaging groove.

Preferably, the sleeve has a first locking protrusion formed inward at a position corresponding to the first locking groove in a state of being coupled to the anchor bolt.

In addition, the other end of the anchor bolt is more preferably formed with a striking portion that decreases in diameter toward the rear.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

As shown in the figure, the anchor according to the present invention is that the expansion plug 10 having the shape of the upper and lower strait is inserted into one end of the anchor bolt 20, the sleeve 30 is coupled to the anchor bolt 20 through Has a structure.

In this embodiment, the expansion plug 10 has the same structure as the conventional detachable anchor.

The anchor bolt 20 has an insertion groove 21 for receiving the expansion plug 10 at one end thereof, and a plurality of cutouts 21a are formed at the outer circumference of the insertion groove 21, and the locking groove is formed at one side of the outer circumferential surface thereof. 23 is formed. As shown in FIG. 3, the locking groove 23 may be continuously formed along the outer circumferential surface of the anchor bolt 20 or a plurality of discontinuous grooves may be formed. The other end of the anchor bolt 20 is formed with a striking portion 25 which decreases in diameter toward the rear. This is to prevent the case in which the nut member 50 is not inserted due to an increase in diameter while the striking portion 25 is compressed by an external strike.

The sleeve 30 is a tubular body having a hollow formed therein, and a plurality of cutouts 30a are formed at one end thereof and are penetrated through the anchor bolt 20 to be coupled thereto. As will be described later, in the state in which the sleeve 30 is coupled to the anchor bolt 20, the locking protrusion 33 is formed inward at a position corresponding to the locking groove 23.

Hereinafter, the construction structure of the anchor according to the first embodiment of the present invention will be described with reference to FIGS. 4A, 4B, and 4C.

Referring to the drawings, in the anchor according to the first embodiment of the present invention, a part of the expansion plug 10 is inserted into the insertion groove 21 formed at one end of the anchor bolt 20, and the anchor bolt 20 The sleeve 30 penetrates and is coupled thereto. In this case, the sleeve 30 has a locking protrusion 33 formed inward at a position corresponding to the locking groove 23 of the anchor bolt 20.

The locking projection 33 is an inner side of the sleeve 30 through a pressing process or the like at a position corresponding to the locking groove 23 formed in the anchor bolt 20 while the sleeve 30 is inserted into the anchor bolt 20. It is formed so that the locking projection 33 is engaged with the locking groove 23 to prevent the sleeve 30 is separated from the rear of the anchor bolt (20).

According to another embodiment of the present invention, the engaging projection 33 is formed in advance in the sleeve 30, the guide groove (not shown) corresponding to the engaging projection 33 is formed on the outer peripheral surface of the anchor bolt 20 When the sleeve 30 is coupled to the anchor bolt 20, the locking protrusion 33 is inserted along the guide groove of the anchor bolt 20, and then rotates in one direction from the position of the locking groove 23 to the sleeve 30. It is also possible to prevent the deviating to the rear of the anchor bolt 20.

In this state, the expansion plug 10 is inserted into one end of the insertion hole 65 formed in the concrete wall 60.

Afterwards, the anchor bolt 20 moves forward by striking the striking portion 25 of the anchor bolt 20 protruding from the outside.

As a result, the expansion plug 10 is inserted into the insertion groove 21 of the anchor bolt 20, and as the diameter of the expansion plug 10 to be inserted increases, the cutout portion 21a is expanded and thus the insertion hole 65 of the insertion hole 65 is expanded. The anchor is fixed to the inner circumferential surface.

At this time, the sleeve 30 coupled to surround the outer circumferential surface of the insertion groove 21 according to the expansion of the cutout portion 21a is also extended and the cutout portion 30a is in close contact with the inner circumferential surface of the insertion hole 65.

Thereafter, the washer member 40 and the nut member 50 are fastened and tightened from the protruding end of the anchor bolt 20, so that the sleeve 30 moves forward and the diameter of the insertion groove 21 increases. The cutout 30a of the sleeve 30 is further extended to be in close contact with the inner circumferential surface of the insertion hole 65 to provide a strong fixing force.

As shown in the figure, the anchor according to the second embodiment of the present invention is the same as the configuration of the first embodiment of the present invention except for the shape of the expansion plug 10 and the insertion groove 21, the overall configuration description Omit it.

The expansion plug 10 according to the second embodiment of the present invention has a shape of a light-receiving narrow, a plurality of locking grooves 10a are formed on the outer circumferential surface, and the locking groove 10a is formed on the inner circumferential surface of the insertion groove 21. It is different from the first embodiment of the present invention that the locking projection 21b is formed at the corresponding position.

When the coupling structure is described, the expansion plug 10 is inserted into the insertion groove 21 while the anchor bolt 20 moves forward by the external impact during construction, and the cutout portion increases as the diameter of the expansion plug 10 increases. 21a is extended and tightly fixed to the inner circumferential surface of the insertion hole 65.

At this time, the engaging groove 10a of the expansion plug 10 and the engaging protrusion 21b of the insertion groove 21 are engaged to prevent the expansion plug 10 from being separated outward.

According to the present invention as described above, the sleeve is coupled through the anchor bolt so as to surround the insertion groove, the sleeve is formed in the engaging position in the position corresponding to the locking groove of the anchor bolt in the sleeve can move only to the expansion plug side By doing so, the construction is possible without the use of the connecting member has the effect of simplifying the construction.

In addition, the insertion groove is expanded due to the insertion of the expansion plug, and the incision of the sleeve is expanded and fixed to the insertion hole due to the expansion of the insertion groove, and the incision is further extended as the sleeve moves forward by the fastening of the nut. The effect is more strongly fixed.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

Claims

An expansion plug having a shape of an ordinary light narrow;

An anchor bolt at one end of which an insertion groove for receiving the expansion plug is formed, at least one cutout portion is formed at an outer circumference of the insertion groove, and a first locking groove is formed at one side of the outer circumferential surface; And

At least one cutout is formed at one end of the tubular body having a hollow inside, and a first locking protrusion is formed inward at a position corresponding to the first locking groove, and includes a sleeve that is penetrated and coupled to the anchor bolt. Anchor, characterized in that.

The method of claim 1,

The expansion plug has at least one second locking groove formed on an outer circumferential surface thereof, and a second locking protrusion corresponding to the second locking groove is formed on an inner circumferential surface of the anchor bolt so that the second locking protrusion is inserted when the expansion plug is inserted. An anchor, characterized in that the engaging engagement with the second locking groove.

The method of claim 1,

The sleeve is anchored, characterized in that the first engaging projection is formed inward at the position corresponding to the first engaging groove in the state coupled to the anchor bolt.

The method of claim 1,

The other end of the anchor bolt anchor characterized in that the impact portion is formed to decrease in diameter toward the rear.