KR101349220B1 - Wire rope fixing device capable absorbing impact for rock falling prevention net - Google Patents

Abstract

The present invention relates to a wire rope fixing device for a falling-stone prevention net with a shock absorbing function which prevents stones from falling from a cut slope and, more specifically, to a wire rope fixing device for a falling-stone prevention net with a shock absorbing function which is capable of absorbing shock caused by falling stones, by enabling a fixed wire rope to move within a fixed range. The wire rope fixing device fixing the wire rope which installs a falling-stone prevention net on the ground comprises: a main body including a plate-shaped bottom plate; an outer wall formed on the circumference of the bottom plate, wherein the bottom plate has a first bolt hole in the center and the outer wall has multiple rope containers and grooves; a plate-shaped cover which covers the upper part of the main body and which has a second bolt hole on a position corresponding to the position of the first bolt hole; an anchor which integrates the main body with the cover by penetrating the main body and the cover and which has an end inserted into the ground for attaching the main body to the ground; and a stopper which is attached to the front and back sides of the wire rope passing through the rope container and the rope grooves and which is attached to the outer side of the outer wall of the main body spaced from the outer wall.

Description

Wire rope fixing device capable absorbing impact for rock falling prevention net}

The present invention relates to a wire rope fixing device of a rockfall prevention net to prevent rockfall that may occur in cut slopes, etc. More specifically, the wire rope is fixed while allowing the movement of the wire rope within a certain range to prevent the impact of rockfall The present invention relates to a wire rope fixing device capable of absorbing shock absorbing rocks.

If you cut roads and build roads, rockfall may occur on cut slopes, causing traffic or injury, and stabilize the slope of the slope to prevent falling rocks and prevent them from falling on the road. Install a rockfall protection net to help.

Such a rockfall protection net is fixed to the ground by covering the rockfall prevention net on the slope and placing the wire rope over it to bring the wire rope into close contact with the ground. In order to make the wire rope firmly adhered to the ground, the anchoring function must be fixed to the wire rope so that the wire rope does not fall from the ground and the wire rope is tensioned. The tensioning of the wire rope is performed after fixing the wire rope with the fixing device. Because of this, the tension between the fixing device and the wire rope may not be properly tensioned.

One of the prior art for solving this problem is the 'wire binding assembly' of the registration number 10-1019118. Figure 1 shows the wire rope fixing device according to the prior art, the fixing device is located between the upper assembly plate 120 and the lower assembly plate 140 to pull the wire rope 300 is caught part ( In this case, the friction force is not generated in the wire rope when the wire rope 300 is tensioned. Accordingly, the wire rope 300 is tensioned evenly over the entire length so that the entire ground covered with the rockfall prevention net can be stabilized.

However, in the case of using the wire rope fixing device according to the prior art, although the tensile force may be evenly transmitted by the pulley during the tensioning of the wire rope, after the installation of the rock fall prevention network is completed, the rock fall occurs in the rock fall prevention network to the rock fall prevention network. When a load is applied, the wire rope is pulled without any resistance due to the load concentration caused by the falling rocks, so it is difficult to fix the falling rocks so that the weight of the falling rocks is concentrated on the wire rope fixing device located on the upper surface of the slope. This action can destroy the wire rope fixtures or remove them from the ground.

The present invention is to solve the problems of the prior art as described above, while tensioning the wire rope for tightening the rockfall prevention net to the slope, even though the tension can be made evenly over the entire length of the wire rope, complete the installation of the rockfall prevention net The present invention relates to a wire rope fixing device for rockfall protection nets capable of absorbing shock that can mitigate damage caused by falling rocks, even if an impact is applied to the wire rope by a falling rock.

According to a preferred embodiment of the present invention for solving the above problems, in the wire rope fixing device for rockfall prevention network for fixing the wire rope constituting the rockfall prevention network, the wire rope fixing device is a plate-shaped bottom plate And an outer wall formed around the bottom plate, the center of the bottom plate being provided with a first bolt hole, and the outer wall having a plurality of rope passing grooves, and covering the upper portion of the body. A plate-shaped cover provided with a second bolt hole at a position corresponding to the bolt hole, an anchor body for integrating the body and the cover through the first and second bolt holes and having an end portion inserted into the ground to bring the main body against the ground; A stopper is attached to the front and rear of the wire rope passing through the rope passage groove, and is attached to the outer wall of the main body at an interval from the outer wall. The inner wall is formed on the bottom plate of the main body along the circumference of the first bolt hole, the inner wall is formed to surround the inner wall, and a ball bearing is provided between the inner wall and the inner wall as an axis. Provided is a shock absorbing wire rope anchoring device, characterized in that the rotating guide wheel is further formed.

According to another embodiment of the present invention, the stopper includes a head and a cap each having a groove having a semicircular cross section, wherein the head and the cap are press-fitted and the two are joined by the head and the cap. Provided is a wire rope anchoring device for shock-absorbing rockfall prevention nets, characterized in that the grooves form a rope through hole.

According to another embodiment of the present invention, the stopper includes a pair of caps having grooves having a semicircular cross section, and a pair of caps are formed at both ends of the cap in the horizontal direction. Provided is a wire rope anchoring device for shock-absorbing rockfall prevention nets, characterized in that the bolts are coupled and the two grooves form a rope through hole by the combination of each cap.

According to another embodiment of the present invention, the stopper includes a pair of caps having grooves having a semicircular cross section, and a coupling plate is formed at one end of the cap in the horizontal direction and a pinhole is formed at the other end thereof. It is formed so that one end is bolted and the other end is pin-coupled, by the coupling of each cap is provided a shock absorbing wire rope anchoring device for rockfall prevention nets, characterized in that the two holes form a through hole. .

According to yet another embodiment of the present invention, there is provided a wire rope fixing device for impact absorption nets, characterized in that the frictional bending is formed in the longitudinal section of the groove.

According to another embodiment of the present invention, the inner surface of the groove is provided with a wire rope fixing device for shock absorption capable of absorbing rock fall, characterized in that a plurality of friction projections are formed.

According to still another embodiment of the present invention, there is provided a wire rope fixing device for shock absorbing prevention rock, characterized in that an elastic body surrounding the wire rope is formed between the outer wall and the stopper of the main body.

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According to another embodiment of the present invention, the guide wheel is provided with a wire rope anchoring device for shock absorbing rock falling protection, characterized in that the outer surface is formed by stacking a plurality of rings are formed along the circumference.

The wire rope fixing device for rockfall protection net according to the present invention to reduce the friction between the wire rope fixing device and the wire rope during the tensioning operation of the wire rope so that the wire rope can be efficiently stretched, the tensile force over the entire length of the wire rope This makes it work evenly.

And because the stopper constituting the wire rope fixing device for rockfall prevention network according to the present invention allows the wire rope to move within a certain range, impact on the wire rope by rockfall generated after completing the construction of the wire rope fixing device Even if this is applied, the impact can be alleviated, the stress concentration is prevented, and the elastic body makes this effect even larger.

In addition, even if the wire rope is broken by a rockfall, the stopper is firmly attached to the wire rope, thereby preventing the wire rope from being continuously dragged so that the wire rope may not lose its tensile force over its entire length.

1 is a perspective view of a wire binding assembly as a prior art.
2 is an exploded perspective view and a cross-sectional view of a wire rope fixing device according to the present invention.
3 is an explanatory view of a method for arranging a wire rope in the wire rope fixing device according to the present invention.
4 is an explanatory diagram when the guide wheel is formed of a plurality of rings when the guide wheel is further formed in the wire rope fixing device according to the present invention.
5 is an explanatory view of the effect of the stopper in the wire rope fixing device according to the present invention.
FIG. 6 illustrates two embodiments of the elastic body when the elastic body is further formed in the wire rope fixing device according to the present invention.
Figure 7 is a various embodiments of the stopper constituting the wire rope fixing device according to the present invention.
8 is a cross-sectional view of the stopper in the case where the friction bending and the friction protrusion are formed in the stopper.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, however, it is to be understood that the present invention is not limited to the disclosed embodiments.

2 is a perspective view and a cross-sectional view of the wire rope fixing device 500 according to the present invention.

The wire rope fixing device 500 for the rockfall prevention network according to the present invention includes a plate-shaped bottom plate 511 and an outer wall 512 formed around the bottom plate 511, but is formed in the center of the bottom plate 511. It is provided with a first bolt hole (511a) and the outer wall 512 is provided with a plurality of rope passing grooves (512a) the main body 510, and the first bolt hole to cover the upper portion of the main body 510 The main body 510 and the cover 520 pass through the plate-shaped cover 520 having the second bolt hole 520a at the position corresponding to 511a and the first and second bolt holes 511a and 520a. The body 510 is integrally attached to the front and rear of the anchor body 530 which is inserted into the ground and closely adheres the body 510 to the ground, and the wire rope R which has passed through the rope passage groove 512a. It includes a stopper 540 is attached to the outer wall 512 of the outer wall 512 at intervals.

The wire rope fixing device 500 is disposed on the rockfall prevention net in a lattice form and is installed at the intersection of the wire rope R to be in close contact with the slope by pressing the rockfall prevention net to fix the wire rope R to the ground. By doing so, in order to effectively explain the wire rope fixing device 500, a brief description will be given of the order in which the wire rope fixing device is first installed.

Iii) Wire rope arrangement.

Ii) The main body 510 of the wire rope fixing device 500 is disposed below the wire rope R at the intersection point of the wire rope R.

Iii) covering the cover 520 on the body 510.

Iii) Inserting the anchor body 530 penetrating the cover 520 and the main body 510 to the ground.

Iii) wire rope (R) tension.

I) Attaching the stopper 540 before and after the wire rope (R) passing through the wire rope fixing device (500).

Hereinafter, the wire rope fixing device will be described in detail with reference to the installation procedure of the wire rope fixing device 500 as described above.

The main body 510 is located at the center of the wire rope fixing device according to the present invention, and the other components are combined to play a central role of the wire rope fixing device, and the flat bottom plate 511 and the bottom plate 511 are formed. It includes an outer wall 512 formed along the perimeter. A first bolt hole 511a is formed in the bottom plate 511 so that the anchor body 530 can be inserted therein, and the wire rope R passes through the inside of the wire rope fixing device according to the present invention. A plurality of rope through grooves (512a) is formed so that the top is open. As shown in FIG. 2, four rope passing grooves 512a may be formed, but two, six, eight, or the like may be formed according to the number of wire ropes passing through the wire rope fixing device. .

When the wire rope (R) is stretched, the wire rope (R) can be tensioned evenly over the entire length of the wire rope (R) when no friction occurs between the wire rope fixing device and the wire rope (R). Is to pass through the main body 510, but the area that the main body 510 and the wire rope (R) is preferably small, the outer wall 512 is empty inside the main body 510 and the wire rope (R) The contact area is small.

An inner wall 513 may be formed in the bottom plate 511 of the main body 510 along the circumference of the first bolt hole 511a. The inner wall 513 is a wire rope in the body 510 when the anchor body 530 passes through the second bolt hole 520a of the cover 520 and enters the first bolt hole 511a of the body 510. Not only does it interfere with R), it also prevents friction between the wire rope R and the rough surface of the anchor body 530 when tensioning the wire rope R.

When the inner wall 513 is further formed in the main body 510 and the wire rope R passing through the main body 510 passes through two rope through grooves 512a which are not formed in one straight line, FIG. 3. As shown in (a) of FIG. 3, as shown in FIG. 3 (b), the wire rope R does not enter the one rope through groove 512a and immediately go out to the other rope through groove 512a. By entering one rope through groove (512a) and spans the inner wall 513 and then to the other rope through groove (512a), between the wire rope (R) and the rope through groove (512a) during tensioning of the wire rope (R) It can reduce the applied frictional force.

Outside the inner wall 513, a guide wheel 514 is formed to surround the inner wall 513 and a ball bearing is provided between the inner wall 513 and rotates around the inner wall 513. Can be. The guide wheel 514 is rotated along the wire rope (R) that is pulled during the tensioning operation of the wire rope (R) to block the friction between the wire rope (R) and the inner wall 513 to efficiently wire rope (R) Allow to be tensioned.

The guide wheel 514 may be formed by stacking a plurality of rings 514a having grooves formed on outer surfaces thereof. Since a plurality of wire ropes (R) is generally passed into the wire rope fixing device according to the present invention, and each wire rope (R) is tensioned in a different direction, the wire rope (R) is tensioned after the other When tensioning the wire rope (R) may affect the wire rope (R) previously tensioned, as shown in Figure 4, the guide wheel 514 composed of a plurality of rings (514a) wire rope Each of the (R) contacts the other ring 514a so as not to affect the tensioning operation of each other.

In addition, as shown in the enlarged view of (b) of FIG. 4, the wire rope R is formed by forming a groove having a diameter that matches the diameter of the wire rope R along the outer circumferential surface of each ring 514a. May be seated in the ring 514a.

And the inner surface of each ring 514a is provided with a ball bearing as shown in Fig. 4 (c) to facilitate the rotation of the ring 514a to minimize the friction between the ring 514a and the inner wall 513 have.

The upper cover of the main body 510 is covered with a plate-like cover 520 having a second bolt hole 520a at a position corresponding to the position of the first bolt hole 511a. The cover 520 is covered on the upper portion of the main body 510 to close the rope passage groove 512a so that the wire rope R passing through the main body 510 does not leave the wire rope fixing device.

And as mentioned above, the anchor body 530 passes through the second bolt hole 520a of the cover 520 and the first bolt hole 511a of the main body 510 in order to insert the end portion firmly into the ground. The main body 510 is brought into close contact with the slope, and the main body 510 and the cover 520 are brought into close contact with each other. The anchor body 530 may be used as long as it plays such a role, and rock bolts, soy nails, etc. may be used depending on the state of the ground.

A stopper 540 is attached to the front and rear of the wire rope R passing through the rope passing groove 512a, and the stopper 540 has a predetermined distance from the outer wall 512 on the outside of the outer wall 512 of the main body 510. Are attached.

When the wire rope (R) is tensioned, the rockfall prevention net is in close contact with the slope to stabilize the ground to prevent rockfall from occurring, but it is not easy to completely prevent rockfall. The stopper 540 is firmly fixed to the wire rope (R) and has a size larger than the rope passage groove (512a), when the impact is applied to the wire rope (R) by the falling rocks generated after installing the rockfall prevention net, While the wire rope R is absorbed by the movement within a certain range, the wire rope R is moved too much in a specific direction, thereby preventing the entire slope from becoming unstable as a load biased to the rockfall prevention network occurs.

In addition, even if a portion of the wire rope R is broken by the falling rock, as shown in FIG. 5, since the portion of the wire rope R is not dragged by the stopper 540 continuously, the wire is not drawn. It is possible to prevent the rope R from losing tensile force over its entire length. The attachment force of the stopper 540 may be smaller than the force for fixing the end of the wire rope R, but may allow time to be repaired until the broken portion of the wire rope R is repaired.

An elastic body 550 surrounding the wire rope R may be formed between the outer wall 512 of the main body 510 and the stopper 540. FIG. 6 illustrates a wire rope fixing device in which an elastic body 550 is further formed between the outer wall 512 of the main body 510 and the stopper 540. The wire rope is fixed by an impact applied to the wire rope R. In FIG. When the rope (R) is moved, not only to mitigate the impact, but also to restore the state of the wire rope (R) again to ensure that the tension is continuously maintained evenly over the entire length of the wire rope (R).

As shown in (a) of FIG. 6, the elastic body 550 may be formed such that the elastic body 550 is fitted to the wire rope R through a cut-out part formed of a cylindrical rubber cut in a portion of the circumference. It may be, or as shown in Figure 6 (b), may be made of a compression spring.

7 shows various embodiments of the stopper 540.

The stopper 540 according to the first embodiment shown in FIG. 7A includes a head 541 and a cap 542 each having semicircular grooves 541a and 542a in cross section. The head 541 and the cap 542 are forcibly fitted and two grooves 541a and 542a form the rope through hole P by the coupling of the head 541 and the cap 542.

형상으로 이루어지는데, 캡(542)의 개구부(O) 폭이 헤드(541)의 폭보다 좁게 형성되어 억지끼움결합된다. 이러한 스토퍼(540)는 별도의 다른 결합부재 없이 스토퍼(540)에 한 번 힘을 가하는 것만으로 와이어로프(R)에 단단히 고정될 수 있다.In the head 541 and the cap 542 constituting the stopper 540, grooves 541a and 542a elongated in the longitudinal direction are formed, respectively. When the cap 542 is combined with each other, the two grooves 541a and 542a form a rope passage hole P having a circular cross section through which the wire rope R may pass. The head 541 is entirely flat and the cap 542 wraps around the head 541.

Although the width | variety of the opening part O of the cap 542 is formed narrower than the width | variety of the head 541, it is press fit. The stopper 540 may be firmly fixed to the wire rope R only by applying a force to the stopper 540 once without any other coupling member.

Unlike this, as shown in (b) of FIG. 7, the coupling groove H may be formed on one side of the cap 542 and the head 541, and the coupling protrusion S may be formed on the other side, to prevent interference fitting. It will be more preferable in view of the coupling force that the cap 542 and the head 541 itself serve as coupling grooves and coupling protrusions.

In FIG. 7C, a second embodiment of the stopper 540 is illustrated. The stopper 540 includes a pair of caps 542 having a groove 542a in a cross section. Coupling plates 542b are formed at both ends of the cap 542 in the lateral direction, and bolt holes are formed in the coupling plates 542b, respectively, so that the pair of caps 542 are bolted to each other. The stopper 540 according to the second embodiment has a circular shape in which two grooves 542a pass through the wire rope R by the coupling of the caps 542, similarly to the stopper 540 according to the first embodiment. Rope through hole (P) of the cross section is made.

In FIG. 7D, a third embodiment of the stopper 540 is illustrated. The cap 542 includes a pair of caps 542 having a semicircular groove 542a. Coupling plate 542b is formed at one end of the transverse direction, and a pinhole 542c is formed at the other end thereof so that one end is bolted and the other end is pin-coupled. The stopper 540 is pin-coupled at a factory or the like in advance, and bolts only the coupling plate 542b at one end in the field.

As illustrated in FIG. 8, the stopper 540 according to various embodiments of the present disclosure may have a frictional bend C formed at the end surfaces of the grooves 541a and 542a. The friction bending C prevents the stopper 540 from sliding in the longitudinal direction of the wire rope R by allowing the wire rope R to be slightly curved without forming a straight line.

In addition, a plurality of small friction protrusions B are formed on the inner surfaces of the grooves 541a and 542a so that the friction force acts largely between the inner surfaces of the grooves 541a and 542a and the wire rope R. It will make it bigger.

Although specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments are merely examples to make the present invention easy to understand, and those skilled in the art will appreciate It will be apparent that various modifications can be made within the scope of the technical idea. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

500: wire rope fixing device 510: main body
511: bottom plate 511a: first bolt ball
512: Outer wall 512a: Rope through groove
513: inner wall 514: guide wheel
514a: ring 520: cover
520a: second bolt ball 530: anchor body
540: stopper 541: head
541a, 542a: groove 542: cap
542b: coupling plate 542c: pinhole
550: elastic body
B: friction protrusion C: friction bending
P: Rope through hole R: Wire rope

Claims (10)

In the wire rope fixing device 500 for fixing the rock rope constituting the rockfall prevention net to the ground,
The wire rope fixing device 500 includes a plate-shaped bottom plate 511 and an outer wall 512 formed around the bottom plate 511, and includes a first bolt hole in the center of the bottom plate 511. 511a is provided and the outer wall 512 is provided with a plurality of rope passing grooves 512a, and covers an upper portion of the main body 510 to correspond to the first bolt hole 511a. The plate-shaped cover 520 having the second bolt hole 520a at the position passes through the first and second bolt holes 511a and 520a to integrate the main body 510 and the cover 520, An anchor body 530 inserted into the ground to adhere the main body 510 to the ground and attached to the front and rear of the wire rope R passing through the rope passage groove 512a, but outside the outer wall 512 of the main body 510. Including a stopper 540 attached to the outer wall 512 at intervals,
An inner wall 513 is formed in the bottom plate 511 of the main body 510 along the circumference of the first bolt hole 511 a, and is formed while surrounding the inner wall 513 to the outside of the inner wall 513 and an inner wall. A ball bearing is provided between the 513 and the guide rope 514 for rotating the inner wall 513 to the axis is further formed, characterized in that the wire rope fixing device for impact absorption capable rock fall prevention nets. The method of claim 1,
The stopper 540 includes a head 541 and a cap 542 each having semicircular grooves 541a and 542a in cross section, and the head 541 and the cap 542 are tightly fitted. And the two grooves (541a, 542a) form a rope through hole (P) by the combination of the head 541 and the cap 542. The method of claim 1,
The stopper 540 includes a pair of caps 542 having a semicircular groove 542a in cross section, and coupling plates 542b are formed at both ends of the cap 542 in the horizontal direction. And a pair of caps 542 are bolted and the two ropes 542a by the combination of each cap 542 forms a rope through hole (P) shock-absorbing wire rope for rockfall protection net, characterized in that Fixture. The method of claim 1,
The stopper 540 includes a pair of caps 542 having a semicircular groove 542a having a cross section, and a coupling plate 542b is formed at one end in the horizontal direction of the cap 542. The other end has a pin hole 542c is formed so that one end is bolted and the other end is pin-coupled, the two grooves (542a) by the coupling of each cap 542 forms a rope through hole (P) The wire rope fixing device for the rock-absorbing prevention net, characterized in that the shock absorption. 5. The method according to any one of claims 2 to 4,
Friction bends (C) are formed in the end faces of the grooves (541a, 542a). 5. The method according to any one of claims 2 to 4,
Shock absorbing capable wire rope anchoring device, characterized in that a plurality of friction projections (B) is formed on the inner surface of the grooves (541a, 542a). The method of claim 1,
An impact absorbing wire rope anchoring device for a rockfall prevention network, characterized in that the elastic body 550 surrounding the wire rope (R) is formed between the outer wall 512 and the stopper (540) of the main body (510). The method of claim 1,
The guide wheel 514 is a wire rope anchoring device for shock absorbing rockfall prevention net, characterized in that the outer surface is formed by stacking a plurality of rings (514a) formed along the circumference.
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