TIE HOOP UNTYING PREVENTION DEVICE

Abstract

A tie hoop untying prevention device of the present invention may comprise: a body part provided in a shape of surrounding the outer side surface and the upper and lower surfaces of a tie hoop and coupled to the tie hoop; a pair of extension parts provided at opposite ends of the body part, respectively, and formed in directions different from each other; separation preventing parts provided on both side surfaces of the body part, respectively, to prevent separation of the tie hoop; and a tying part provided at each of the corners of the body part to prevent vertical and outward movements of the tie hoop when being coupled to the tie hoop.

Claims

1. A band reinforcing bar loosening prevention device provided in a band reinforcing bar installed on a main bar to delay a buckling of the main bar to prevent the band reinforcing bar from loosening, wherein the band reinforcing bar loosening prevention device comprises, a body portion that is provided in a form of surrounding an outer side surface, and upper and lower surfaces of the band reinforcing bar and that is coupled to the band reinforcing bar; a pair of extension portions that are provided respectively at both ends of the body portion and that are formed in different directions; a separation prevention portion that is provided respectively on both sides of the body portion to prevent the band reinforcing bar from being separated, and a constraint portion that is provided at each corner of the body portion and prevents vertical and outward movements when combined with the band reinforcing bar.

2. The band reinforcing bar loosening prevention device according to claim 1, wherein the body portion comprises a first body portion facing the outer side surface of the band reinforcing bar; and a pair of second body portions that extend inward of the band reinforcing bar from both ends of the first body portion and face upper and lower portions of the band reinforcing bar.

3. The band reinforcing bar loosening prevention device according to claim 2, wherein the extension portion comprises a pair of first extension portions that are provided respectively at one end of the pair of second body portions and extend in different directions; and a pair of second extension portions that are provided respectively at one end of the pair of first extension portions and extend in an outer direction of the band reinforcing bars.

4. The band reinforcing bar loosening prevention device according to claim 3, wherein the separation prevention portion is provided on one surface of the second body portion and is provided with a separation prevention clip bent in directions facing each other.

5. The band reinforcing bar loosening prevention device according to claim 4, wherein the separation preventing portion is provided in the second body portion and is provided with an inlet hole for allowing concrete to flow in between the second body portion and the band reinforcing bar during concrete pouring.

6. The band reinforcing bar loosening prevention device according to claim 5, wherein the constraint portion comprises a constraint groove provided at both ends of the second body portion, respectively; and a constraint strap that is provided in a form of surrounding the second body portion from an outside, and that is seated in the constraint groove and entangles the second body portion.

7. The band reinforcing bar loosening prevention device according to claim 6, wherein the constraint strap is formed of a steel wire.

8. The band reinforcing bar loosening prevention device according to claim 7, wherein the constraint portion is provided on the outside of the second body portion and comprises a constraint member that is coupled to the constraint strap in a snare shape, and is seated in the constraint groove, and entangles the second body portion.

9. The band reinforcing bar loosening prevention device according to claim 8, wherein the constraint member is formed as a sleeve.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0021] FIG. 1 is a view showing the prior art.

[0022] FIG. 2 is a perspective view showing a state in which the band reinforcing bar loosening prevention device according to an embodiment of the present invention is installed.

[0023] FIG. 3 is a perspective view of the band reinforcing bar loosening prevention device shown in FIG. 2.

[0024] FIG. 4 is an enlarged perspective view of the band reinforcing bar loosening prevention device shown in FIG. 2, seen from the inside.

[0025] FIG. 5 is an enlarged perspective view of the band reinforcing bar loosening prevention device according to another embodiment of the present invention, seen from the inside.

DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, the band reinforcing bar loosening prevention device according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows.

[0027] FIG. 2 is a perspective view showing a state in which the band reinforcing bar loosening prevention device according to an embodiment of the present invention is installed, and FIG. 3 is a perspective view of the band reinforcing bar loosening prevention device shown in FIG. 2, and FIG. 4 is an enlarged perspective view of the band reinforcing bar loosening prevention device shown in FIG. 2, seen from the inside.

[0028] As shown in FIGS. 2 and 3, the band reinforcing bar loosening prevention device 10 according to one embodiment of the present invention may be installed on the band reinforcing bar 30. The band reinforcing bar 30 may serve to delay the buckling of the main bar 20 by being installed on the main bar 20.

[0029] The band reinforcing bar loosening prevention device 10 may comprise a body portion 100, an extension portion 200, a separation prevention portion 300, and a constraint portion 400.

[0030] The body portion 100 may be manufactured in a ‘’ shape and may comprise a first body portion 110 that is facing the outer surface of the band reinforcing bar 30, and a second body portion 120 that may extend at both ends of the first body portion 110 in an inward direction of the band reinforcing bar 30, respectively. The second body portion 120 may extend at a certain angle in the inward direction when extending from both ends of the first body portion 110 in order to further push the band reinforcing bar 30 into the first body portion 110. Here, the band reinforcing bar 30 may be positioned between the ‘’-shaped body portions 100 extending at a certain angle in the inward direction.

[0031] Meanwhile, the extension portion 200 is divided into a first extension portion 210 and a second extension portion 220. The first extension portion 210 is provided at one end of the pair of second body portions 120, respectively, may extend in different directions, that is, the first extension portion 210 provided on the second body portion 120 located in an upper part of the band reinforcing bar 30 may extend in an upward direction, and the first extension portion 210 provided in the second body portion 120 located in a lower part of the band reinforcing bar 30 may extend in a downward direction. And the second extension portion 220 may be provided at one end of the pair of first extension portions 210 to extend in the outer direction of the band reinforcing bar 30, respectively. Accordingly, the extension portion 200 flows in between the first extension portion 210 and the second extension portion 220 when concrete is poured after the band reinforcing bar loosening prevention device 10 is installed, so that it is possible to exhibit the effect of increasing the joining force of the band reinforcing bar loosening prevention device.

[0032] The separation prevention portion 300 is formed on one surface of the second body portion 120 and may be provided as a separation prevention clip 310 and an inlet hole 320. The separation prevention clip 310 is provided on one surface of the pair of second body portions 120, respectively, and may be bent in the inner direction of the band reinforcing bar 30. Here, the separation prevention clip 310 pushes the band reinforcing bar 30 positioned between the body portions 100 inwardly so that the band reinforcing bar 30 may be inserted between the separation prevention clips 310 in the body portion 100. In addition, the inlet hole 320 may be provided on one surface of the second body portion 120 or one surface of the pair of second body portions 120, and it is possible to exert the effect of increasing the binding force of the band reinforcing bar preventing loosening device 10 by allowing the concrete to flow in between the body portion 100 and the band reinforcing bar 30, when the concrete is poured after the band reinforcing bar loosening prevention device 10 is installed.

[0033] The constraint portion 400 may comprise a constraint groove 410 provided at both ends of the second body portion 120, respectively, and a constraint strap 420 that is provided in a form of surrounding the second body portion 120 from an outside, and that is seated in the constraint groove 410 and entangles the second body portion 120. The constraint strap 420 may be formed of a steel wire so as to wrap from the outside of the second body portion 120. Accordingly, the constraint strap 420 is fitted to be seated in accordance with the constraint groove 410 and is wound one or more times from the outside of the second body portion 120 to press the space between the body portion 100 to further restrain the band reinforcing bar 30.

[0034] Next, a description will be given of the band reinforcing bar loosening prevention device 10 according to another embodiment of the present invention. In the following description, only parts different from the above-described embodiment will be described in detail, and detailed descriptions of the same or extremely similar parts will be omitted.

[0035] FIG. 5 is an enlarged perspective view of a band reinforcing bar loosening prevention device according to another embodiment of the present invention as viewed from the inside.

[0036] As shown in FIG. 5, the band reinforcing bar loosening prevention device 10 according to another embodiment of the present invention may comprise a body portion 100, an extension portion 200, a separation prevention portion 300 and a constraint portion 400.

[0037] The constraint portion 400 is provided on the outside of the second body portion 120 and may comprise a constraint member 430 that is coupled to the constraint strap 420 in a snare shape, and is seated in the constraint groove 410, and entangles the second body portion 120. The constraint member 430 may be formed as a sleeve in order to simplify finishing work of the constraint strap 420 and increase convenience of installation. The constraint member 430 is provided in a cylindrical shape to couple the constraint strap 420 in a snare shape and wrap it from the outside of the second body portion 120 to be seated in the constraint groove 410. In addition, the constraint member 430 may be fixed by entangling the connected constraint strap 420 to the second body portion 120 and pressing the constraint member 430 with a tool.

[0038] On the other hand, the constraint member 430 may be located to be entangled on all sides except for the edge portion of the band reinforcing bar loosening prevention device 10 when it is finished to the second body portion 120.

[0039] As described above, as the band reinforcing bar loosening prevention device 10 is installed on the band reinforcing bar 30 through the separation prevention clip 310, rapid construction can be performed. In addition, it is possible to prevent the bending moment of the reinforced concrete column from being lowered, which is caused by the band reinforcing bar 30 to be loosened after the maximum bearing force, by the constraint portion 400 constraining the band reinforcing bar 30.

[0040] In the above, the band reinforcing bar loosening prevention device according to one embodiment of the present invention has been described, but the spirit of the present invention is not limited to the embodiments presented herein. Also, those skilled in the art, who understand the spirit of the invention, can readily suggest other embodiments by adding, changing, deleting, introducing or the like of components within the same spirit, and the other embodiments are also within the scope of the invention.