KR102019396B1 - Apparatus of prevention against falling stone - Google Patents

Abstract

The present invention relates to a structure for preventing falling stone, which is configured to easily bind and fix a wire mesh coupled to a wire rope. Moreover, the structure for preventing falling stone includes a tensioning device (splice) to adjust tension of the wire rope, and enables a main worker to conveniently perform installation work without auxiliary worker when installing the tensioning device. In addition, a clamp and a rope clamp are used to couple the wire rope to a groove pipe-shaped falling stone strut used to reinforce rigidity of the falling stone strut so that the wire rope can be stably fixed to the falling stone strut.

Description

Rockfall Protection Structure {APPARATUS OF PREVENTION AGAINST FALLING STONE}

The present invention relates to a rockfall prevention structure,

First, it is configured to facilitate binding to secure the wire mesh coupled to the wire rope,

Second, the tension of the wire rope, including the tensioning device (splice) to adjust the tension, but when installing the tensioning device, the auxiliary worker can easily perform the installation work alone,

Third, the present invention relates to a rockfall prevention structure that couples the wire rope to the rockfall holder by using a fastener and a rope fixing bolt to stably fix the wire rope to the homepipe-shaped rockfall holder which is used to strengthen the rockfall support.

In general, rockfall prevention measures are widely used as safety facilities installed on roadsides adjacent to inclined slopes in mountainous areas to prevent various vehicles and human accidents caused by falling rocks or lost soil.

In relation to such a rockfall prevention measures, the slope fall prevention measures (prior art 1) of Patent Publication No. 10-1572505, the open and close rockfall prevention measures (prior art 2) of Patent Publication No. 10-1572504 and No. 20-0397552 High strength rockfall prevention measures (prior art 3) are described.

Prior art 1 is installed on the slope of the road side to prevent the falling of the falling rocks on the road, and to prevent the impact of the falling rock fall protection measures to protect the human life and property, and is fixed to the slope, long hole shape A plurality of fixing plates having a fixing piece formed with a buffer hole therein; A pair of struts, each strut is placed on both sides of the fixing piece, and the struts are connected to each other by a connecting member, and a strut body fixedly coupled to the buffer hole through a fixing member; A wire net provided between the support bodies; A rockfall prevention network installed to surround the wire net; It provides a slope falling prevention measures including; and a buffer wire for connecting the anchor fixed to the ground and the support body to cushion the impact of the falling rock.

Prior art 2, which is installed on the side of the road having a slope to protect people and property by preventing rockfall, is installed a plurality of predetermined distances on the side of the road having a slope, a plurality of fixed clips installed along the longitudinal direction ; Cross clips are arranged in a plurality of spaced apart in the longitudinal direction in the inner space between the posts; Main wires connected to each other at a plurality of the cross clips while being connected through a plurality of fixed clips installed at both sides of the cross clip; Reinforcing wires installed in a vertical direction while connecting a plurality of said cross clips; And a rockfall prevention net connected to be installed to surround the rear of the rockfall prevention measure.

Prior art 3 relates to a high strength rockfall prevention measures, the purpose of which is to maintain the steel rod between the landlord and the landlord is easy to maintain, there is no need for a separate tension device to tension the steel rod, and the steel rod to be rolled out at regular intervals The steel bar reinforcement bar is installed to prevent the falling rocks from entering the roadside due to its excellent absorption of impact by falling rocks. to provide.

On the other hand, in the construction of rockfall prevention measures, a technique for making it easy to fix the wire rope has been developed, which describes the wire rope fixing structure (prior art 4) of the rockfall prevention measures of Korean Patent Publication No. 10-0870751. .

Prior art 4, the base structure 11 formed on the side of the road, the H-beam column 20 placed at a predetermined interval of the base structure 11 and the H-beam column 20 laterally coupled In the rockfall prevention measures (1) consisting of a wire rope 30 to be installed, and a network 40 to be installed in the H-beam column 20 in the transverse direction, on the top or bottom of the front surface of the H-beam column 20 Fixing with a bolt ring, but the support (110) for coupling and fixing the both ends of the wire rope 30, and the guide sphere (120) for coupling at equal intervals on the front of the H-beam column 20 120 is coupled vertically between the pressing plate 130 to fix the wire rope 30, so that the wire rope 30 is supported by warning to maximize the effect of blocking rockfall and at the same time H-beam column 20 and Firmly fixed with one strand of wire rope 30 between the H-beam column 20 and the H-beam column 20 can be replaced by the cutting part 22. Because it provides a wire rope fixed structure that can be due if the damaged part of the rockfall prevention (1) caused by the rockfall occurred only be able to recover quickly, but which minimize repair costs, rockfall prevention.

As described above, although various types of rockfall prevention technologies have been developed, technologies related to the rockfall prevention measures proposed by the present applicant have not been developed.

Patent Registration No. 10-1572505 (November 27, 2015) Patent Application Publication No. 10-1572504 (November 27, 2015.) Utility Model Registration No. 20-0397552 (October 06, 2005) Patent Application Publication No. 10-0870751 (August 26, 2008)

SUMMARY OF THE INVENTION An object of the present invention is to provide a rockfall prevention structure, which is configured to facilitate binding to secure a wire mesh coupled to a wire rope.

Another object of the present invention is to provide a rockfall prevention structure, which adjusts the tension of the wire rope, including the tensioning device, so that the installation can be easily performed by the main worker alone without the need for an assistant when installing the tensioning device.

Still another object of the present invention is to combine the wire rope with the rockfall holder using a clamping rod and a rope fixing rod to stably fix the wire rope to the homepipe-shaped rockfall holder adopted to strengthen the rockfall holder. To provide a preventive structure.

In order to achieve the above object, the rockfall prevention structure according to the present invention, a wire rope 22 connecting a plurality of rockfall supporters and a plurality of rockfall supporters 21 placed on the ground, and A rockfall prevention structure comprising a wire mesh 23 coupled to a wire rope 22, the tension device (1) for fixing the wire rope 22 is configured at the far end of the plurality of rock pillars (21) It is characterized in that the reinforcing column 25 is formed between the one of the far end of the plurality of rock pillars 21 and the other one adjacent thereto.

At this time, the coupling of the wire mesh 23 and the wire rope 22,

It is composed of a spring shape, it is inserted through the mesh of the wire mesh 23, characterized in that made through the connecting ring (23a) so that the wire rope 22 is located inside.

In addition, the tensioning device 1,

It is formed in a tapered tubular shape forward and the body (2) having a cap fastening screw portion (2a) formed on the rear outer periphery, and is inserted into the body (2), a plurality of spiral grooves (4a) on the outer surface The conical wedge 4 and the cap fastening screw portion 2a of the body 2 are fastened to each other, and a screw portion 5a is formed at an inner circumference and a screw hole 5b is formed through the cap 5. And, the front end is fastened to the screw hole (5b) of the cap (5) is inserted into the body (2) and the rear end is provided with a screw rod (7) protruding to the rear of the cap (5), and the screw rod ( 7) is made of a wedge pressure nut (8) and a rope tensioning nut (9) which are respectively fastened via washers (8a) (9a) at the rear end,

A pair of tool bites 3a and 3b are symmetrically formed on the front and outer side of the body 2,

A hooking head 7a is formed at the front end of the screw rod 7 and a square protrusion 7b is formed at the rear end thereof.

The rear end of the cap (5) is characterized in that the nut-shaped protrusion (6) is formed in the center of the threaded hole (5b) of the cap (5) is formed.

In addition, the wire rope 22 is connected to the rockfall support 21,

Closing the concave groove formed in the longitudinal direction on one side of the rockfall support 21, a long hole is formed at both ends and is fixed to the fastener (21a) coupled from the concave groove of the rockfall support 21 through the bolt,

The bolt hole is formed to be coupled to the bolt, using a rope fixing clamp 21b fastened to the bolt next to the fixing clamp 21a,

As the rope fixing clamp 21b has a curved shape to allow the wire rope 22 to be fixed to one side, the wire rope 22 is inserted and fixed between the rope fixing clamp 21b and the fixing clamp 21a. It is characterized by.

In addition, the reinforcement column 25,

It consists of a 'c' shape, each end includes a first bracket (25a) and a second bracket (25b),

The first bracket 25a or the second bracket 25b,

Of the configuration having the shape of the flat plate portion to form four bolt holes to be coupled to the rockfall support 21 or only two bolt holes, and has a curved shape to correspond to the outer surface shape of the rockfall support 21,

Any one configuration is configured in both the first bracket 25a and the second bracket 25b, or

Alternatively, each configuration may be configured in each of the first bracket 25a and the second bracket 25b.

In addition, the rockfall prevention structure further includes a doorway 26,

The doorway 26 is composed of a door frame is formed in the periphery having a mesh, it is characterized in that it is configured between any two rockfall support 21 adjacent to each other.

In addition, one of the two rockfall support 21 is formed on the one side of the round bar (21c) is formed bent in the 'b' shape, the other side is formed with the interruption portion (21d),

The doorway 26,

The round bar 21c is inserted into an end portion in the direction of the rockfall support 21 in which the round bar 21c is formed, and a rotating part 26a of a pipe shape pivoting around the round bar 21c is formed.

A bracket 26b is formed at an end portion in the direction of the rockfall support 21 in which the interruption portion 21d is formed,

The intermittent portion 21d is

A rectangular shape of a box shape is formed, and any two surfaces of the three surfaces except for one surface in contact with the rockfall column 21 are opened to form an open area 21d ', thereby opening the area 21d'. Through the bracket (26b) is characterized in that it is configured to be inserted or exposed into the intermittent portion (21d).

According to the rockfall prevention structure according to the invention,

First, it is composed of a spring shape while being inserted into the wire mesh of the mesh form, by using a connecting ring inserted through the wire rope penetrated inside, by binding the wire mesh and the wire rope, there is an advantage that the binding is stable and easy to construct,

Secondly, the tension of the wire rope, including the tensioning device is adjusted, but when the tensioning device is installed, there is an advantage that the main worker can easily perform the installation work alone, without the need for an auxiliary worker,

Third, in the case of fixing the wire rope to the home pipe type rock column which is used for reinforcing the rockfall holder, the wire rope is coupled to the rock pillar by using the clamping rod and the rope fixing clamp. .

1 shows a rockfall prevention structure according to the present invention.
Figure 1a shows an example in which the wire mesh and the wire rope of the rockfall prevention structure according to the invention is connected.
Figure 2 shows another embodiment of the rockfall prevention structure according to the invention.
Figure 3 is an exploded perspective view showing the tensioning device of the rockfall prevention structure according to the present invention.
Figure 4 is a side cross-sectional view showing an assembled state of the tensioning device of the rockfall prevention structure according to the present invention.
5 is a view showing the installation state of the tensioning device of the rockfall prevention structure according to the invention.
Figure 6 shows a configuration in which the wire rope of the rockfall prevention structure according to the present invention is fixed to the rockfall support through the wire fixture.
FIG. 7 shows the structure of the wire fastener of FIG. 6.
Figure 8 shows the configuration of the reinforcement column of the rockfall prevention structure according to the invention.
9 illustrates a configuration of an entrance and exit configured according to the embodiment of FIG. 2.
10 and 11 illustrate the configuration of the doorway of FIG. 9.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. Based on the principle, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be variations and examples.

Before describing the present invention with reference to the drawings, it is not shown or specifically described for the matters that are not necessary to reveal the gist of the present invention, that is, those skilled in the art can obviously add. Make a note.

The present invention relates to a rockfall prevention structure.

Specifically, the tool bite is symmetrically formed at the front end of the body into which the end of the wire rope is fixed, and the nut-shaped protrusion is formed at the rear end of the cap fastened to the rear end of the body to increase the strength of the weak part of the body and the cap. The reinforcement of the cap and the threaded hole of the cap can be performed more easily and firmly by using a fastening tool, and a shorter length than the conventional long splice. Forming but including a tension head to form a catching head portion at the front end and a square projection at the rear end to facilitate the handling and assembly so that the auxiliary operator can easily perform the installation work alone without the need for an auxiliary worker,

In order to fix and install the wire rope that is installed in a plurality of rock pillars in the horizontal direction in each rockfall pillar, the fixing bolt is installed at the inlet of the infalling groove of the rockfall pillar which has the inward groove in the form of a home pipe. When the upper and lower sides are formed with long holes, respectively, to fix the wire rope to the support base, the bolt holes of the rope fixing bolts are inserted into the threaded portions of the bolts while inserting the bolts into the long holes with the upper and lower sides respectively open so that the head of the bolt is caught by the fixing bracket Inserting a, and to the screw exposed to the rear portion of the rope anchoring fastener comprising a wire fixing device for easily fixed installation of the wire rope installed in the horizontal direction taut to the holding post, it relates to a rock fall prevention structure.

Hereinafter, the rockfall prevention structure according to the present invention will be described with reference to FIG.

1 shows a rockfall prevention structure according to the present invention.

Rockfall prevention measures 24 by the rockfall prevention measures structure according to Figure 1 of the accompanying drawings,

A rockfall holder 21 placed on the ground,

A wire rope 22 connecting a plurality of rockfall holders 21,

It is configured to include a wire mesh 23 connected to the wire rope (22).

At this time, the wire mesh 23 is connected to the wire rope 22 may refer to Figure 1a of the accompanying drawings.

Figure 1a shows an example in which the wire mesh and the wire rope of the rockfall prevention structure according to the invention is connected.

According to FIG. 1A of the accompanying drawings, a spring-shaped connecting ring 23a penetrating between the meshes formed in the wire mesh 23 is further included, while the connecting ring 23a penetrates between the meshes of the wire mesh 23. To form a shape surrounding the outer edge of the wire rope 22.

That is, the wire mesh 23 and the wire rope 22 may be connected by the connecting ring 23a.

In addition, it is possible that the wire rope 22 is coupled to the rockfall support 21 by the fixing clamp 21a and the rope fixing clamp 21b, which will be described with reference to FIGS. 6 and 7 of the accompanying drawings.

6 is a view showing a configuration in which the wire rope of the rockfall prevention structure according to the present invention is fixed to the rockfall column through the wire fixing sphere, and FIG. 7 illustrates the structure of the wire fixing sphere of FIG.

The rockfall pillar 21 according to the present invention is configured in the shape of a groove pipe in which one side is concave in the inner direction along the longitudinal direction, and the hole in which the bolt penetrates is formed in the recessed groove of the rockfall pillar 21. The bolt may be fastened as shown.

The bolts 21a and the rope fasteners 21b may be coupled to the bolts in order in the coupling direction. In this case, long ends through which bolts may be formed are formed at each end of the fasteners 21a, and the rope fasteners 21b. One side of the bolt hole may be formed through which the bolt can pass.

As such, when the fixing clamp 21a and the rope fixing clamp 21b are fastened to the bolt, the nut may be fastened to the end of the bolt.

In addition, the other side of the rope fixing clamp 21b to have a curved shape so that the wire rope 22 can be fixed.

On the other hand, the fastener 21a is to have a size larger than the diameter of the concave groove of the rockfall column 21 so that the groove can be closed without being inserted into the recessed groove of the rockfall column 21, the clamp 21a The wire rope 22 is inserted between the rope fixing clamp 21b and finally the wire rope 22 is fixed to the rockfall column 21.

At this time, the wire rope 22 is fixed to the rockfall column 21, the tension device 1 is configured in the rockfall column 21 located at the far end can hold the wire rope 22.

This tension device 1 will be described with reference to FIGS. 3 to 5 of the accompanying drawings.

Figure 3 is an exploded perspective view showing a tension device of the rockfall prevention structure according to the present invention, Figure 4 is a side cross-sectional view showing the assembled state of the tension device of the rockfall prevention structure according to the invention, Figure 5 is a rockfall prevention measure according to the present invention It is a figure which shows the installation state of the tensioning apparatus of a structure.

The tensioning device 1 has a body 2, a conical wedge 4, a cap 5, a screw rod 7, a wedge pressurizing nut 8, a rope tensioning nut as shown in FIG. It consists of (9).

The body (2) is formed in a tapered tubular shape toward the front and a pair of tool bites (3a) (3b) that can bite a fastening tool such as a wrench or spanner on the front outer side is formed symmetrically and the rear outer circumference The cap fastening screw portion 2a to which the cap 5 is fastened is formed.

The conical wedge (4) is inserted into the interior of the body (2) is to be fixed to the end of the wire rope 22 in a wedge, extending longer than the conical wedge used in the conventional wire rope tensioning device On the side surface, a plurality of spiral grooves 4a are inserted into which wires of the wire rope 22 twisted into multiple strands are bent.

The cap (5) is fastened to the cap fastening screw portion (2a) of the body (2), the inner periphery is formed with a screw portion (5a), the rear end is formed so that the nut-shaped protrusion (6) protrudes to the rear and in the center The screw hole 5b to which the screw rod 7 is fastened is formed through.

The screw rod (7) is fastened to the screw hole (5b) of the cap 5 so as to protrude to the rear of the cap (5), the screw portion is formed over the entire length and the engaging head portion (7a) is formed in the front end portion And the rear end is formed with a square projection (7b) that can bite a fastening tool such as a wrench or spanner.

In addition, the length of the screw rod (7) allows the body (2), which is installed at the front end of the screw rod (7) to be installed as close to the rockfall support 21 as possible, while at the same time easily without the main worker alone It is preferable to form shorter than the splice of the conventional wire rope tensioning device to be installed by handling.

The wedge pressing nut 8 is fastened to the screw rod 7 via a washer 8a, and is fastened and inserted into the screw hole 5b of the cap 5 installed at the rear end of the body 2. (2) serves to maintain the fastening state of the screw rod (7) to press the rear end of the conical wedge (4) inserted into the interior.

The rope pressing nut 9 is fastened to the rear end of the screw rod 7 via the washer 9a, and is fastened to the rear end of the screw rod 7 inserted to penetrate the rockfall column 21. After the tightening to move the screw rod 7 to the rear serves to apply a tensile force to the wire rope (22) fixed by the wire rope tensioning device (1).

Referring to the installation process and the working relationship of the wire rope using the wire rope tensioning device of the present invention configured as described above are as follows.

First, one end of the wire rope 22 to be installed is inserted into the body 2 through the opening in front of the body 2, and the wire rope 22 twisted into several strands is released to conical wedge 4 After inserting into the spiral groove 4a, the wire rope 22 is pulled in the direction opposite to the insertion direction, and the conical wedge 4 into which the wire of the wire rope 22 is inserted is inserted into the body 2 and seated. Be sure to

Then, the cap fastening screw portion (2a) of the body (2) is fastened to the cap (5) inserted into the screw rod 7 is fastened to the screw hole (5b) formed through the center, the body ( Fastening by a worker's hand in the past is possible by easily engaging a fastening tool such as a wrench and a spanner, respectively, to the tool bites 3a and 3b of the tool 2 and the nut-shaped protrusions 6 of the cap 5, respectively. It is possible to tighten even more easily and firmly.

After the coupling of the body 2 and the cap 5 is completed, the screw rod 7 is rotated by moving the screw rod 7 fastened to the screw hole 5b of the cap 5 to the inside of the body 2. The front end of the pressurizes the rear end of the conical wedge (4) inserted into the body (2), wherein the nut-shaped protrusion (6) and the cap (5) of the cap (5) fastened to the rear end of the body (2) Since it is possible to easily rotate the screw rod (7) by fastening the respective fastening tool to the square projection (7b) of the screw rod (7) fastened to the screw hole (5b) of the It can be more easily and firmly tightened.

Subsequently, the screw rod 7 is inserted into the wedge pressing nut 8 with the washer 8a interposed therebetween to be firmly fastened in a state of being in close contact with the nut-shaped protrusion 6 of the cap 5. At this time, the nut-like protrusion 6 of the cap 5 fastened to the rear end of the body 2 and the wedge pressure nut 8 are respectively easily fastened so that the wedge pressure nut 8 can be tightened. It will be easier and more firmly tightened.

Subsequently, the rear end of the screw rod 7 fastened to the screw hole 5b of the cap 5 is inserted to penetrate backwards through the rockfall column 21, and then the washer at the rear end of the protruding screw rod 7 By tightening and tightening the rope tensioning nut 9 in the state through 9a), the wire rope 22 fixed by the wire rope tensioning device 1 is fixedly installed in a state of maintaining tension.

The wire rope tensioning apparatus according to the present invention installed as described above has a pair of tool grips 3a and 3b formed on the front and outer sides of the body 2 and nut-shaped protrusions formed at the rear ends of the cap 5. 6), the strength of the conventionally weak part is reinforced remarkably, and the durability is greatly improved, and a strong impact is applied to the wire rope 22 fixed by the wire rope tensioning device 1 by falling rocks or earth and sand. Even if the thread formed in the threaded hole 5b of the cap 5 screwed to the sand bar 7 is broken and the screwed state of the threaded rod 7 and the cap 5 is released, the threaded hole 5b of the cap 5 is released. The wire rod 22 is detached by being fastened to the threaded hole 5b of the cap 5 by the locking head 7a of the screw rod 7 without being detached immediately. Can be prevented.

In addition, the wire rope tensioning apparatus according to the present invention configured as described above is shown in each rockfall column 21 of the rockfall prevention measures 24 as in the conventional wire rope tensioning device as shown in (a) of FIG. In order to fix both ends of the long wire rope 22 installed so as to be secured to be installed only on the rockfall supporters 21 located at both ends of the rockfall prevention measures 24, or as shown in (b) of FIG. In order to improve the holding capacity of the PVC-coated wire mesh 23 installed in the 24), each rockfall holder 21 of the rockfall prevention measures 24 or each rockfall supporters 21 located in a predetermined section of the rockfall prevention measures 24 are shifted alternately. It is possible to be installed as.

On the other hand, the reinforcing column 25 as shown in Figure 1 between the rockfall column 21 of the far end and the other rockfall column 21 adjacent to the tension device 1 is formed as described above two adjacent rockfall column 21 It can be configured to connect between.

This reinforcing column 25 will be described with reference to FIG. 8 of the accompanying drawings.

Figure 8 shows the configuration of the reinforcement column of the rockfall prevention structure according to the invention.

The reinforcing column 25 according to FIG. 8 of the accompanying drawings is formed in a 'c' shape, so that each end includes a first bracket 25a and a second bracket 25b.

At this time, the first bracket (25a) or the second bracket (25b) are all configured the same or have a different configuration, respectively,

As an example, the configuration having a flat plate portion to form four bolt holes to be coupled to the rockfall support 21, or

As another example of the configuration, only two bolt holes are formed, and among the configurations having a curved shape so as to correspond to the outer surface shape of the rockfall support 21, any one configuration is identical to the two brackets 25a and 25b. Or different configurations respectively. This may be based on the builder's choice according to the conditions of the construction site to reinforce the strength of the fall prevention measures.

On the other hand, depending on the design conditions, one side of the rockfall prevention measures 25 may be formed in the entrance 26 easy to enter.

Figure 2 shows another embodiment of the rockfall prevention structure according to the invention.

The doorway 26 may be formed of a door that forms a frame around the wire mesh having the same mesh as the wire mesh 23 as shown in FIG. 2.

This doorway 26 is constructed between two adjacent rockfall pillars 21, specifically referring to FIGS. 9 to 11 of the accompanying drawings.

FIG. 9 shows the configuration of the doorway configured according to the embodiment of FIG. 2, and FIGS. 10 and 11 illustrate the configuration of the doorway of FIG. 9.

As shown in FIG. 9 of the accompanying drawings, the entrance 26 has a pipe-shaped pivoting portion 26a formed at one end of the rockfall column 21 in the direction, and the other end of the entrance 26 is formed at the end of the rockfall column 21. The bracket 26b may be formed.

In addition, one side of the rocking column 21 adjacent to the pivoting portion 26a may be formed with a round bar 21c that is bent in a 'b' shape to be inserted into the pivoting portion 26a of a pipe shape.

On one side of the rockfall support 21 adjacent to the bracket 26b, an intermittent portion 21d may be formed to control the bracket 26b so that the bracket 26b may be inserted and then exposed and separated.

The intermittent portion 21d is formed in a box-shaped quadrangular shape as shown in FIG. 11 of the accompanying drawings, and any two surfaces of the three surfaces except for the one contacting the rockfall column 21 are opened and opened. The region 21d 'is formed.

Accordingly, the doorway 26 is opened and closed by the pivoting portion 26a pivoting the round bar 21c, so that the bracket 26b is opened through the open area 21d 'of the interruption portion 21d when the opening is opened. 21d may be inserted inward and then exposed.

In this case, when the entrance 26 is closed, the closing may be maintained by penetrating and fixing the intermittent portion 21d and the bracket 26b through a separate rod or the combination of the bolt and the nut of FIG. 11. To this end, it is natural that the through holes penetrated in the up and down directions may be formed in the intermittent portion 21d and the bracket 26b, respectively.

According to the design conditions, one side of the open area 21d 'adjacent to the rockfall support 21 is formed with a first locking portion protruding downward from the upper lower surface of the open area 21d', and the open area ( The second locking portion protruding upward from the lower upper surface of 21d ′ may be formed.

At this time, a protrusion made of a magnetic material protrudes below the first locking portion, and a protrusion groove into which the protrusion of the first locking portion can be inserted is formed of the magnetic material above the second locking portion.

At this time, the magnetic material of the protrusion and the groove is to have a different polarity (N, S).

The first locking portion and the second locking portion may be made of a flexible material (silicon, etc.) that is well bent.

In this case, the bracket 26b is preferably made of a material that does not stick to the magnet, but is not necessarily limited thereto. In addition, depending on the design conditions, the end of the bracket 26b may be further formed with a smaller protrusion projection. However, even when the protrusion is formed, the through hole of the bracket 26b and the through hole of the open area 21d 'should be designed to be located in a straight line. The reason why such a protrusion is formed is to allow the bracket 26b to easily pass through the projection and the projection groove between the first locking portion and the second locking portion when the bracket 26b is inserted or exposed in the open area 21d '.

This configuration has the advantage of allowing the entrance and exit 26 to be fixed without being arbitrarily opened without temporarily fastening the fixing means such as bolts or rods to the through holes of the bracket and the intermittent portion.

In addition, as another example, a hole penetrated in one side of the bracket 26b connected to the doorway 26 in an up and down direction, wherein the hole has an elastic member connected from an end surface of the doorway 26 to an inner surface of the hole ( Spring or the like) may be formed in the longitudinal direction of one or more brackets 26b.

By such a configuration, even if an impact generated while opening or closing the doorway 26 or an impact generated by collision of a separate living body or an object is generated, transmission of the impact to the bracket 26b can be reduced. Therefore, all damage of the bracket 26b and the interruption | blocking part 21d can be prevented.

What has been described above using the accompanying drawings, only the main matters of the present invention has been described, it is obvious that the various configurations within the technical scope is not limited to the configuration of the accompanying drawings of the present invention.

1: tensioning device
2: body
2a: Cap tightening screw part
3a, 3b: tool grip
4: conical wedge
4a: Spiral groove
5: cap
5a: screw
5b: screw hole
6: nut-shaped protrusion
7: screw rod
7a: hanging head
7b: square protrusion
8: Wedge Nut
8a: washer
9: rope tension nut
9a: washer
21: Rockfall Holder
21a: clamp
21b: rope lock
22: wire rope
23: wire mesh
23a: link
24: Rockfall prevention measures
25: reinforcement column
26: doorway
21c: round bar
26a: rotating part
21d: intermittent
26b: Bracket

Claims (7)

A rockfall holder 21 placed on the ground,
A wire rope 22 connecting a plurality of rockfall holders 21,
A wire mesh 23 coupled to the wire rope 22;
As a rockfall prevention structure consisting of a door frame composed of a door frame formed in the periphery having a mesh, comprising an entrance 26 formed between any two rockfall holder 21 adjacent to each other,
A tensioning device (1) for fixing the wire rope (22) at the far end of the plurality of rock pillars (21),
A reinforcement column 25 is formed between the far end of the plurality of rock pillars 21 and the other one adjacent thereto,
-One side of the two rockfall support (21) is formed a round bar (21c) is bent in the form of 'b' shape, the other side is formed with an interruption (21d),
The doorway 26,
The round bar 21c is inserted into an end portion in the direction of the rockfall support 21 in which the round bar 21c is formed, and a rotating part 26a of a pipe shape pivoting around the round bar 21c is formed.
A bracket 26b is formed at an end portion in the direction of the rockfall support 21 in which the interruption portion 21d is formed,
The intermittent portion 21d,
A rectangular shape of a box shape is formed, and any two surfaces of the three surfaces except for one surface in contact with the rockfall column 21 are opened to form an open area 21d ', thereby opening the area 21d'. Through the bracket (26b) is configured to be inserted or exposed into the interior of the intermittent portion 21d,
One side of the open area 21d 'adjacent to the rockfall support 21 is provided with a first locking portion protruding downward from the upper lower surface of the open area 21d', and below the open area 21d '. A second locking portion protruding upward from the upper surface is formed,
A protrusion made of a magnetic material protrudes below the first locking portion, and a protrusion groove into which the protrusion of the first locking portion can be inserted is formed of a magnetic material above the second locking portion.
The magnetic material of the protrusion and the groove has a different polarity (N, S), respectively
The first catching portion and the second catching portion are constructed of a flexible material that is well bent, thereby preventing the random opening by fixing the doorway 26 without additional fastening means.
The method according to claim 1,
The combination of the wire mesh 23 and the wire rope 22,
Is configured in a spring shape, it is inserted through the mesh of the wire mesh 23, characterized in that made through the connecting ring (23a) to be positioned inside the wire rope 22, rockfall prevention structure.
The method according to claim 1,
The tensioning device 1,
It is formed in a tapered tubular shape forward and the body (2) having a cap fastening screw portion (2a) formed on the rear outer periphery, and inserted into the body (2), a plurality of spiral grooves (4a) The conical wedge (4) and the cap fastening screw portion (2a) of the body (2) is fastened, the screw portion (5a) is formed on the inner circumference and the screw hole (5b) through the cap 5 formed in the center And, the front end is fastened to the screw hole (5b) of the cap (5) is inserted into the body (2) and the rear end is provided with a screw rod (7) protruding to the rear of the cap (5), and the screw rod ( 7) is made of a wedge pressure nut (8) and a rope tensioning nut (9) which are respectively fastened via washers (8a) (9a) at the rear end,
A pair of tool bites 3a and 3b are symmetrically formed on the front and outer side of the body 2,
A hooking head 7a is formed at the front end of the screw rod 7 and a square protrusion 7b is formed at the rear end thereof.
The rear end of the cap (5) is characterized in that the nut-shaped protrusion (6) is formed in the center of the screw hole (5b) of the cap (5) is formed, rockfall prevention structure.
The method according to claim 1,
The wire rope 22 is connected to the rockfall support 21,
Closing the concave groove formed in the longitudinal direction on one side of the rockfall support 21, a long hole is formed at both ends and is fixed to the fastener (21a) coupled from the concave groove of the rockfall support 21 through the bolt,
The bolt hole is formed to be coupled to the bolt, using a rope fixing clamp 21b fastened to the bolt next to the fixing clamp 21a,
The rope fixing clamp 21b has a curved shape to allow the wire rope 22 to be fixed on one side thereof, and the wire rope 22 is inserted and fixed between the rope fixing clamp 21b and the fixing clamp 21a. Characterized in that the rock fall prevention structure.
The method according to claim 1,
The reinforcement column 25,
It consists of a 'c' shape, each end includes a first bracket (25a) and a second bracket (25b),
The first bracket 25a or the second bracket 25b,
Of the configuration having the shape of the flat plate portion to form four bolt holes to be coupled to the rockfall support 21 or only two bolt holes, and has a curved shape to correspond to the outer surface shape of the rockfall support 21,
Any one configuration is configured in both the first bracket 25a and the second bracket 25b, or
Or each of the components is configured in each of the first bracket (25a) and the second bracket (25b), rockfall prevention measures structure.
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