KR200489405Y1 - A customized fixing tool for installation of safety nets - Google Patents

Abstract

The present invention relates to a fixture for installing a fall prevention network for installing a fall prevention network using a seperate bolt in a cone hole on a concrete wall surface, and includes a pipe support, a close cover, a shaft member, and a tightening member. The pipe support includes a clamp to which a support pipe for supporting the fall prevention network is fixed, and a support bracket which is coupled to a lower surface of the clamp. The close cover is disposed in front of the support bracket so that the hemispherical depressed surface faces the concrete wall surface. The shaft member is composed of a nut portion screwed to the septa bolt, a screw portion extending from the nut portion and passing through the center of the support bracket and the close cover, a screw portion formed on the outer circumferential surface thereof, and a fastening portion formed in the end portion of the screw portion in a bolt- . The tightening member is screwed to the threaded portion of the shaft member so as to be located at the rear side of the support bracket and is tightened so that the pipe support and the close cover are simultaneously pressed and fixed to the concrete wall surface side.

Description

A customized fixing tool for installation of safety nets

The present invention relates to a fixture for installing a fall prevention network, and more particularly, to a fixture for installing a fall prevention network used for installing a fall prevention network on a wall surface of a building under construction.

According to the occupational safety and health standards, it is stipulated to install a fall prevention network when there is a risk of falling objects at the construction site of a high-rise building. According to this regulation, the fall-prevention network must be installed at a height of 10 meters and protrude more than 2 meters from the wall of the building, and it is prescribed to maintain an angle of 20 ° to 30 ° with the horizontal plane. As a result, a drop prevention network is mandatory at all construction sites of high-rise buildings.

The structure and form of the drop prevention network currently installed are various. The most common form is to fix the fall prevention net on the scaffolding installed on the wall of the building. The scaffold is a temporary structure which is installed at a predetermined interval from the wall surface of the building by using pipes or woods in order to facilitate the high-level work. As described in Patent Registration No. 10-0906553, the scaffold- When workers or tools are dropped between the walls of the building and scaffolds, the fall prevention network has a disadvantage in that it can not function properly.

In another form, a method of using the balcony's jaws of the building has also been proposed. As described in the Registration Practical Utility Model No. 20-0291505, a separate support bracket is installed on the balcony jaw of the building and the fall prevention net is fixed to the support bracket. However, if there is no balcony tuck in the building, it is impossible to install the support bracket, and because the support bracket is exposed to the worker's copper line, it may interfere with the work and because it is fixed to the balcony tuck, Low.

As another example, Japanese Patent Application No. 10-0726467 discloses a "fall prevention network fixing member ". 6, the falling prevention network fixing member 60 utilizes a seperate bolt 80 fixed to the concrete wall, and has a nut portion 62 coupled to the seperate bolt 80 at one side thereof And a support cap (not shown) provided on the other side with a clamp 60 to which the frame 50 of the fall prevention network is coupled and closely attached to the concrete wall surface so as to prevent the load from being concentrated on the nut part 62. In the conventional fall prevention network fixing member 60, the fall prevention network can be installed without a scaffold or a separate support bracket, and the fall prevention network can be installed so as to be in close contact with the wall surface of the building.

However, the conventional fall prevention network fixing member 60 has a structured structure in which the length of the nut portion 62 and the position of the support cap (not shown) can not be adjusted. Therefore, if the depth of the cone hole 20 of the concrete wall is not uniform, it is difficult to securely connect the fall preventing network fixing member 60 to the seperate bolt 80.

That is, when the depth of the cone hole 20 is deeper than expected, the length of the portion where the fall preventing network fixing member 60 and the seperate bolt 80 are coupled with each other becomes shorter and the bonding strength decreases accordingly. Conversely, 20 is shallower than expected, even if the nut portion 62 is completely inserted into the seperate bolt 80, the support cap (not shown) does not completely come into contact with the concrete wall surface, so that the load applied to the fall- All the load was concentrated on the nut portion 62 without supporting properly. As a result, the conventional drop prevention network fixing member 60 has a problem that it can not support the load properly due to its structural limit, and is deformed or disengaged from the concrete wall in some cases.

Korean Registered Patent No. 10-0906553 (Registered on June 30, 2009, entitled "Scaffolding Clamp Assembly") Registered Utility Model Registration No. 20-0291505 (Registered on Sep. 26, 2002, Name of invention: Safety Net Fixture) Korean Registered Patent No. 10-0726467 (Registered on Jun. 1, 2007, Name of invention:

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a fixture for installing a tailor-made fall prevention material net, which can be firmly coupled to a concrete wall irrespective of the depth of a cone hole.

In order to achieve the above-mentioned object, according to the present invention, a fixture for installing a fall-prevention-prevention network is a fixture for installing a fall-prevention network for installing a fall-prevention network by using a seperate bolt (2) in a cone hole (1) (100) comprising a clamp (110) to which a support pipe (4) for supporting a protection network is fixed and a support bracket (120) to be coupled to a lower surface of the clamp (110); A close cover (200) disposed in front of the support bracket (120) such that a hemispherical depressed surface faces the concrete wall surface; A nut portion 310 threadedly engaged with the seperate bolt 2 and a nut 321 extending from the nut portion 310 and passing through the centers of the support bracket 120 and the close cover 200, A shaft member 300 divided into a bolt head 330 at an end of the screw 320; And the pipe support 100 and the close cover 200 are simultaneously screwed to the screw portion 320 of the shaft member 300 so as to be positioned behind the support bracket 120, And a tightening member (400) tightened to be fixed.

The support bracket 120 includes a pair of support pieces 121 spaced apart from each other along the shaft member 300 and a pair of support pieces 121 121 and a connecting piece 122 fixed to the lower surface of the clamp 110 and having a length corresponding to the interval between the pair of supporting pieces 121, And a gap holding member 500 inserted between the pair of support pieces 121 by inserting the spacer 300 into the gap holding member 500.

A part of the close cover 200 is attached to the close cover 200 so that the state of the shaft member 300 and the seperate bolt 2 can be checked. The cut observation groove 210 can be formed.

The nut 310 is made larger than the through hole 220 of the close cover 200 through which the shaft member 300 passes, The member 300 is inserted into the threaded portion 320 and the pipe support 100, the cover 200 and the fastening member 400 are first inserted into the threaded portion 320, Can be manufactured by bonding.

According to the present invention, regardless of the depth of the cone hole, the shaft member can be firmly coupled to the seperate bolt, and the close cover can be closely attached to the concrete wall surface while being movable along the shaft member, Can be obtained.

Particularly, it is advantageous to use a fixture for installing a drop prevention net made in a single standard at all construction sites, without having to confirm the connut standard used in the mold in advance and to manufacture and prepare the same fixture for installing the same drop prevention network.

Further, it is possible to prevent the fixture for installing the drop prevention network from being deformed by the tightening tool through the gap holding member interposed between the pair of support brackets, and the engagement state between the shaft member and the seperate bolt It is possible to obtain the effect of preventing the bearing force of the drop prevention network from becoming poor by immediately replacing the fixture for fixing the drop prevention network with the naked eye.

FIG. 1 is a photograph of a prototype of a fixture for mounting a customized drop prevention network according to an embodiment of the present invention; FIG.
Figure 2 is a side view of a fixture for the customizable drop prevention network of Figure 1;
3 is a process diagram showing a construction process of a fixture for installing a customized fall prevention network of FIG.
4 is a view showing a state in which a fixing hole for installing a conventional fall prevention net and a fixing hole for installing a falling fall prevention net according to the present invention are respectively installed in a cone hole formed deeper than expected.
FIG. 5 is a view showing a state where a conventional anti-fall network mounting fixture and a customized fall prevention network mounting fixture according to the present invention are installed in a cone hole formed to be shallower than expected.
6 is a view for explaining a coupling structure of a conventional fixing device for installing a fall prevention net.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a fixture for mounting a custom fall-prevention network according to the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known techniques will be omitted to avoid obscuring the subject matter of the present invention.

FIG. 1 is a photograph of a prototype of a fixture for installing a custom fall prevention network according to an embodiment of the present invention, FIG. 2 is a side view of a fixture for installing a custom fall prevention net shown in FIG. 1, FIG. 4 is a view showing a state in which a fixing device for installing a conventional fall-prevention network and a fixing device for installing a falling-type anti-fall network according to the present invention are installed in a cone hole with a deeper than expected level, And FIG.

Referring to FIGS. 1 to 5, a fixture for mounting a fall prevention network according to an embodiment of the present invention is a fixture for installing a fall prevention network for installing a fall prevention network using a seperate bolt in a cone hole of a concrete wall, The pipe cover 100, the close cover 200, the shaft member 300, and the fastening member (not shown) so that the fastener for installing the fall prevention net can be coupled to the seabed bolt and fixed firmly to the concrete wall regardless of the depth of the hole. 400).

The pipe support 100 comprises a clamp 110 to which a support pipe 4 (see FIG. 3) for supporting a fall prevention network is fixed and a support bracket 120 to be coupled to a lower surface of the clamp 110.

The type of the clamp 110 applied here is not particularly limited but the clamp 110 separated from the fixed piece 111 and the rotating piece 112 may be a clamp 110) is preferably used. In this embodiment, the pivoting piece 112 can be pivoted in a direction away from the concrete wall surface, and the safety piece 111 can be bent in a right angle shape to be parallel to the side surface of the support bracket 120 do.

2, the support bracket 120 includes a pair of support pieces 121 spaced apart from each other along a shaft member 300 to be described later so as to minimize the weight of the pipe support 100, And a connecting piece 122 connected to the upper end of the supporting piece 121 of the clamp 110 and fixed to the lower surface of the clamp 110.

The close cover 200 is disposed in front of the support bracket 120 adjacent to the concrete wall surface so that the hemispherical depressed surface faces the concrete wall surface. The close cover 200 is in close contact with the concrete wall surface and serves to transmit and disperse the load applied to the shaft member 300 to the concrete wall surface.

1 to 3, a part of the close cover 200 is cut in the close cover 200 so as to confirm whether the shaft member 300 and the seperate bolt 2 are coupled or damaged after the connection, It is preferable that the observation groove 210 is formed.

The shaft member 300 includes a nut 310 that is threadedly engaged with the seperatel bolt 2 exposed in the cone hole 1 of the concrete wall surface and a screw portion 321 extending from the nut portion 310 and having a thread 321 formed on the outer circumferential surface thereof. And a fastening part 330 formed at the end of the screw part 320 in the shape of a bolt head. The shaft member 300 is screwed to the septa bolts 2 which penetrate through the center of the support bracket 120 and the close cover 200 and are exposed in the concrete wall surface.

The nut portion 310 is formed in the through hole 220 of the close cover 200 through which the shaft member 300 passes so that the accessories such as the pipe support 100, And the shaft member 300 is inserted into the threaded portion 320 at the end of the threaded portion 320 after the pipe support 100, the cover 200 and the fastening member 400 are first inserted It is preferable that the nut portion 310 is jointed. That is, the nut part 310 and the fastening part 330, which are respectively engaged with both ends of the shaft member 300, serve as a release preventing chin.

The tightening member 400 is screwed to the outer circumferential surface of the shaft member 300 so as to be located behind the support bracket 120 and is screwed to the threaded portion 320 so that the pipe support 100 and the close cover 200 are simultaneously pressed As shown in Fig.

At this time, it is preferable that the gap holding member 500 is interposed between the pair of support pieces 121 so that the pair of support pieces 121 are not bent inward due to the tightening force of the tightening member 400. The gap holding member 500 has a cylindrical shape with a hollow through which the shaft member 300 passes and has a length corresponding to the interval between the pair of the holding pieces 121. In the state where the shaft member 300 is inserted And is disposed between the pair of support pieces 121.

The structure and shape of the customized fall prevention network mounting fixture according to the present invention have been described, and the construction process will now be described with reference to FIG.

First, the nut part 310 located at the tip of the shaft member 300 is fastened to the end of the seperatel bolt 2 exposed on the concrete wall surface. Until the shaft member 300 is not rotated, that is, until the nut portion 310 comes into contact with the inner wall surface of the cone hole 1 or when the end portion of the seperate bolt 2 touches the inner wall surface of the nut portion 310 The fastening part 330 of the shaft member 300 is tightly tightened using a tool.

When the shaft member 300 is fixed to the concrete wall surface, the pipe support 100, the close cover 200, and the gap holding member 500 are pressed and fixed to the concrete wall surface side while tightening the tightening member 400.

The rotating piece 112 and the fastening hole 113 of the clamp 110 are respectively opened and the support pipe 4 is inserted into the clamp and then the rotating piece 112 is closed and the fastener 113 is hooked Thereby fixing the pipe 4 to the clamp 110. Here, the support pipe 4 is a pipe corresponding to the bottom end of a fall prevention frame fixing frame (corresponding to drawing number 50 in FIG. 6) made like a ladder.

Thereafter, although not shown, a pair of hooks are fixed to the concrete wall surface so as to be spaced apart from the upper and lower sides of the fall preventing network fixing frame, the fall preventing network is spread and fixed on the fall preventing network fixing frame, And the other end is engaged with the upper end of the falling prevention frame fixing frame and fixed so that the fall prevention frame fixing frame does not move up and down, the installation of the fall prevention network is completed.

As described above, according to the present invention, the fixture for mounting a falling-prevention-prevention net according to the present invention has a separate component, and the shaft member 300 can be firmly fixed to the seperator bolt 2 regardless of the depth of the cone hole 1, And the close cover 200 can be completely adhered to the concrete wall surface. That is, the structure is such that the shaft member 300 can be stably fixed to the seabed bolt 2 in a state in which the close-contact cover 200 is completely in contact with the concrete wall surface.

The cone hole (1) is a hole remaining in the concrete wall surface which is cured when the form is removed. The cone hole (1) is a hole which is fastened to the end of the seperat bolt (2) and is separated from the cone nut (a nut for temporarily holding the position of the die) Accordingly, the depth of the cone hole 1 becomes different from one another.

For example, as shown in the left side of FIG. 4, when the cone hole used in the formwork is relatively large in size so that the depth of the cone hole 1 is deeper than expected, the conventional drop- 62 are fixed to the support cap 67, the length of the nut portion 62 can not be changed. Therefore, the entire length of the portion where the nut portion 62 of the anti-fall prevention network fixing portion and the septa bolt 2 are coupled to each other Is relatively short. As a result, the load of the fallen drops the ability to resist the pull-out force acting on the fixing member for installing the fall-prevention network. On the other hand, as shown in the right side of FIG. 4, the customized fall prevention network mounting fixture according to the present invention has a variable structure in which the parts including the pipe supporting member 100 are displaced along the shaft member 300, The shaft member 300 can be rotated to the inner wall surface of the cone hole 1 to be firmly coupled to the septa bolt 2 regardless of the depth of the shaft member 300. [

On the other hand, in the case where the size of the cone nut used in the formwork installation is relatively small so that the depth of the cone hole 1 is shallower than expected, the conventional drop- 62 are completely inserted into the septa bolts 80, the support cap 67 is not completely brought into close contact with the concrete wall surface, and the load is concentrated on the nut portion 62, so that the durability and structural safety of the fixture for installing the fall- There was no. On the other hand, according to the present invention, the fixture for mounting the customized drop prevention network is configured such that the close contact cover 200 is moved on the shaft member 300 in a variable manner and is closely contacted with the concrete wall surface irrespective of the depth of the cone hole 1, The load applied to the drop prevention network can be stably dispersed on the concrete wall surface through the close cover 200 without being concentrated on the shaft member 300. [

Particularly, in the past, it has been costly to manufacture a variety of fasteners for installing a fall prevention network according to the connut standard, and it was troublesome to check the specifications of the connuts used in the formwork and to prepare fixtures for installing the fall preventive nets. On the contrary, the present invention can be applied regardless of the depth of the cone hole 1, so that it is possible to obtain an additional effect of solving such a problem.

As described above, according to the present invention, the shaft member can be firmly coupled to the seperate bolt regardless of the depth of the cone hole, and the close cover can be closely attached to the concrete wall surface while being movable along the shaft member, It is possible to obtain an effect of ensuring structural safety.

Particularly, it is advantageous to use a single standard fixture for installing a drop prevention network at all construction sites, without having to confirm the connut standard used in the mold in advance and to prepare and prepare the same fixture for installing the same drop prevention network separately.

Further, it is possible to prevent the fixture for installing the drop prevention network from being deformed by the tightening tool through the gap holding member interposed between the pair of support brackets, and the engagement state between the shaft member and the seperate bolt It is possible to obtain the effect of preventing the bearing force of the drop prevention network from becoming poor by immediately replacing the fixture for fixing the drop prevention network with the naked eye.

The scope of the present invention is not limited to the above-described embodiments and modifications, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Pipe support
200: close cover
300: shaft member
400: fastening member
500:

Claims (4)

A fixture for installing a fall prevention net for installing a fall prevention network using a septic bolt (2) in a cone hole (1) of a concrete wall surface,
A pipe support 100 comprising a clamp 110 to which a support pipe 4 for supporting the fall prevention network is fixed and a support bracket 120 to be coupled to a lower surface of the clamp 110;
A close cover (200) disposed in front of the support bracket (120) such that a hemispherical depressed surface faces the concrete wall surface;
A nut portion 310 threadedly engaged with the seperate bolt 2 and a nut 321 extending from the nut portion 310 and passing through the centers of the support bracket 120 and the close cover 200, A shaft member 300 divided into a bolt head 330 at an end of the screw 320; And
The pipe support 100 and the close cover 200 are screwed to the screw portion 320 of the shaft member 300 so as to be positioned behind the support bracket 120, And a tightening member (400) tightened as far as possible,
The support bracket 120 includes a pair of support pieces 121 spaced apart from each other along the shaft member 300 and a pair of support pieces 121 connecting the upper ends of the pair of support pieces 121 to each other, And a connecting piece 122 fixed to the lower surface of the connecting piece 122,
A spacing member 500 having a length corresponding to the interval between the pair of support pieces 121 and interposed between the pair of support pieces 121 by insertion of the shaft member 300; Further comprising a plurality of fasteners for mounting a falling-prevention network. delete The method according to claim 1,
An observation groove 210 in which a part of the close cover 200 is cut is formed in the close cover 200 so that the state of the coupled state of the shaft member 300 and the seperate bolt 2 can be confirmed A customized drop-in fixture mounting fixture. The method according to claim 1,
The nut portion 310 is made larger than the through hole 220 of the close cover 200 through which the shaft member 300 passes,
The shaft member 300 is inserted into the threaded portion 320 such that the pipe support 100, the cover 200 and the fastening member 400 are first inserted into the threaded portion 320, (310) are joined to each other.

Images