KR101541837B1 - Falling and falling object protection device for concrete form - Google Patents

Abstract

According to the present invention, a device to prevent falls and falling objects for an external formwork comprises: a plurality of formwork structures provided along a side of an area to be placed with a concrete wall, and vertically placed in order on the concrete pouring position; and a safety net of which both ends are separately joined to the adjacent ends of the formwork structures, and extended in a vertical direction to prevent objects from falling down through a space between the formwork structures when one of the formwork structures is lifted.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fall prevention apparatus,

The present invention relates to an apparatus for preventing falling and falling objects for an external form, and more particularly, to a method for preventing falling and falling objects for an external form, And an apparatus for preventing falling and falling objects for an external form.

Typically, formwork is used in apartments, buildings, housing construction projects, and civil engineering work sites. Formwork uses metal, hard fibers, and synthetic resin panels that have a simple structure and various functions.

Such a form is a method in which a form is placed on the ground during the construction of a building structure, concrete is laid in the form to construct a fixed height structure, the form is demolded and the form is installed on the upper part of the constructed structure again use.

In recent years, a slide elevating type mold capable of repetitively pouring concrete has been used. Such an elevating type form is assembled as an integral type, and is sequentially raised by using a crane or a hydraulic device.

However, in the conventional formwork, the interval between the formworks is widened in a process of increasing the height sequentially, and at this time, a person or a falling object may fall or fall through the gap between the formworks, .

Of course, conventionally, a safety structure is used to prevent falling objects from falling down by using a safety net. However, the conventional safety net requires time and cost to change the installation position and installation state of the formworks sequentially, There was a risk of a safety accident.

Accordingly, there is a need for a technique capable of securing work safety by preventing persons or falling objects from falling to the interval between the formworks without changing the position initially installed when the form is sequentially raised.

Prior art related to the present invention is Korean Patent Laid-Open Publication No. 10-1997-0075146 (December 10, 1997), which discloses a die automatic elevating device.

It is an object of the present invention to provide a falling and fall prevention device for an external formwork which can secure a work safety by preventing a person or a falling object from falling down by providing a safety net that can be adjusted in length between the formworks.

Another object of the present invention is to provide an apparatus for preventing falling and falling objects for external formworks, which is easy to construct because the installation position of the safety net does not need to be changed in the process of raising the formwork structure by configuring the length of the safety net between the form structures.

The apparatus includes a plurality of work form structures disposed along an outer surface of a concrete wall forming position and sequentially positioned at a height of a concrete pouring height, And a safety net to which any one of the work structures is vertically extended at both ends when the work is lifted to prevent falling objects from falling between the work structures.

One or more wire ropes are vertically installed in any one of the work structures, and the wire rope is coupled in a zigzag manner so that the wire rope can be folded up or unfolded when the work structure is lifted or lowered have.

The safety net is connected to any one of the die structures at one end of the safety net, and is wound around the safety net so that the safety net can be drawn out from the inside of the safety net. And a connection port that is attached to and detached from the formwork structure opposite to the installation position of the attachment.

The housing includes a housing rotatably supported at its both ends in the axial direction, a rotation shaft around which a safety net is wound around the housing, and a returning elastic force applied to the rotating shaft, And a first elastic member for rotating the rotating shaft in the winding direction.

In addition, a stopper for holding the position of the rotation shaft fixedly may be further provided in the housing.

The stopper may include a tooth formed along an outer periphery of one axial end of the rotary shaft and rotated together with the rotary shaft, and a stopper provided rotatably inside or outside the housing, the front end of the stopper being engaged or disengaged from the tooth And a second elastic member which is provided at a rotation center of the stopper and applies a returning elastic force to bring the front end of the stopper into close contact with the tooth.

Meanwhile, a railroad guard may be further provided at a lower end of any one of the formwork structures and is vertically positioned adjacent to one end of the safety net, and has a stepped staircase to be raised or lowered.

In the present invention, since the safety net is provided at the interval between the formwork structures, it is possible to secure the safety of the worker because the fallen objects do not fall down during the work of installing the formwork and the installation position of the safety net can be varied It is possible to reduce time and cost.

1 is a perspective view showing an apparatus for preventing falling and falling objects for an external formwork according to the present invention.
FIG. 2 is a side view for illustrating a falling and falling apparatus for an external formwork according to the present invention.
3 is a cross-sectional view illustrating an apparatus for preventing falling and falling objects for an external formwork according to the present invention.
4 is a front view showing a state in which a fall and fall prevention device for an external formwork according to the present invention is installed on a formwork.
Fig. 5 is an enlarged view of the main part according to Fig.
6 is a front view showing a state in which a part of the formwork structure is raised in a state where the fall and fall prevention apparatus for an outer formwork according to the present invention is installed on the formwork structure.
Fig. 7 is an enlarged view of the main part according to Fig.
FIG. 8 is a side view showing a state where a wire rope is installed in a safety net of a fall and fall prevention device for an outer formwork according to the present invention.
FIG. 9 is a side view showing a safety net of an apparatus for falling and falling objects for an outer form according to the present invention, which is spread upward along a wire rope.

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

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving it will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

FIG. 1 is a perspective view showing an apparatus for falling and falling objects for an external formwork according to the present invention, and FIG. 2 is a side view for showing a falling and falling apparatus for an external formwork according to the present invention.

FIG. 3 is a cross-sectional view illustrating an apparatus for preventing falling and falling objects for an external formwork according to the present invention, FIG. 4 is a front view for showing a state in which a fall and fall prevention apparatus for an external formwork according to the present invention is installed in a formwork structure And Fig. 5 is an enlarged view of the main part according to Fig.

6 is a front view illustrating a state in which a part of the formwork structure is raised in a state where the fall and fall prevention apparatus for an outer formwork according to the present invention is installed on a formwork structure, and FIG. 7 is an enlarged view .

Referring to FIGS. 1 to 7, an apparatus for preventing falling and falling objects for an external form according to the present invention includes a formwork structure 100 and a safety net 200.

First, the workpiece structure 100 is disposed along the outer surface of the concrete wall forming position, and is used for forming a wall while sequentially elevating the concrete according to the height of the concrete pouring height.

Here, the formwork structure 100 includes a gang form, a rail climbing system for raising and lowering the gantry, and an automatic climbing system.

The gang form refers to a large formwork which is formed by integrally forming a mold body forming an outer wall and a cage for a work footing, in a cross-sectional structure having the same plane and the same shape as a high-rise apartment.

The cage is a part of the gantry except the formwork body part for the outer wall, which means a work footrest installed to safely carry out the installation and dismantling work of the formwork, the subsequent plastering and the laying work.

The mold structure 100 may be installed at a position where the wall 11 of the building structure 10 is formed to form a mold for concrete injection and curing together with a separate mold installed inside the building structure 10. [ do.

Here, the workpiece structure 100 is installed vertically along the side surface of the wall 11, and is disposed so as to surround the periphery of the wall 11.

In this state, the wall bodies 11 of the building structure 10 are sequentially formed from the bottom while sequentially raising the formwork structures 100 from the position where the wall body 11 is formed.

As described above, the wall structures 11 of the building structure 10 having a certain width and height can be completed while increasing the height of the work structures 100 in order.

The safety net 200 prevents falling objects from falling through the gap S between the formworks 100. [

Here, the safety net 200 has a predetermined width, and both ends of the safety net 200 are coupled to the adjacent end portions of the formwork structures 100 to prevent falling objects from falling downward.

 For example, when both ends of the safety net 200 are coupled to adjacent mold bodies or work foot plates of the gantry, it is possible to prevent people or fallen objects from falling down between the mold bodies or the work foot plates.

Here, the safety net 200 can be manufactured with a certain length and width using a synthetic resin material or the like, and the safety net 200 can be manufactured in the form of a net having a plurality of holes.

For example, when the safety net 200 is made of a synthetic resin material, the safety net 200 may use polyvinyl chloride (PVC), polypropylene (PP), or the like.

A coupling hole 211 may be formed on both sides of the safety net 200 in a vertical direction and the coupling holes 211 may be arranged in a plurality of directions along the two directions in which the formwork structures 100 are located .

A reinforcing ring made of metal or synthetic resin may be attached to the rim of the fastening hole 211 to provide a predetermined rigidity.

The safety net 210 covers the gap S between the mold structures 100 when both of the mold structures 100 are raised.

Therefore, the safety net 200 can prevent falling objects from falling down at the interval S between the formworks 100. [

8 and 9, one or more wire ropes 220 may be vertically installed in any one of the die structures 100. [

At this time, the safety net 200 is coupled with the wire rope 220 in a zigzag manner so that the wire rope 220 can be folded up or unfolded when the work structure 100 is lifted or lowered.

The wire rope 220 is coupled through the fastening holes 211 of the safety net 200 and is preferably made of a material such as metal or synthetic resin that can be wound with high tension.

The wire rope 220 may be zigzagged along the fastening hole 211 through the upper and lower surfaces of the safety net 200 so that both ends of the wire rope 220 can be coupled to the adjacent ends of the mold structures 100.

The wire ropes 220 may be arranged in a plurality of rows, and may be arranged in a lattice shape or the like to increase the strength.

Meanwhile, the safety net 200 may be provided with a winding unit 230 at one end thereof and a connector 240 at the opposite end thereof to the winding unit 230.

Here, the winding unit 230 may include a housing 231, a rotating shaft 232, and a first elastic member 233.

The housing 231 is coupled to one side of the mold structure 100 and has a winding space formed therein and an inlet for drawing the safety net 200 is formed on the front side.

4 and 5, the housing 231 may be formed in a frame or the like of the work structure 100, and the entrance direction of the housing 231 may be formed in the direction of the gap S between the work structures 100 .

A coupling portion for coupling the coupling member B may be formed at the lower end of the housing 231 and the coupling portion may be fixed to a frame or the like of the molding structure 100 by coupling of the coupling member B .

The rotary shaft 232 is rotatably coupled to both ends in the axial direction in the winding space of the housing 231 in the drawing and winding directions of the safety net 200. A plurality of safety nets 200 are provided on the outer circumference of the rotary shaft 232 Is wound.

The first elastic member 233 is installed inside the housing 231 to apply a returning elastic force to the rotation shaft 232.

That is, the first elastic member 233 applies a torsional elastic force to the rotating shaft 232, so that the rotating shaft 232 is rotated in the winding direction by the returning elastic force.

The first elastic member 233 may be a torsion spring for rotating the rotation shaft 232 in the winding direction.

When the first elastic member 233 is applied as a torsion spring, one end of the first elastic member 233 may be fixed to the housing 231 and the other end thereof may be fixed to the rotation shaft 232.

The connection hole 240 is provided at one end of the formwork structure 100 on the drawing direction side and is attached to and detached from the work structure 100 opposite to the installation position of the winding portion 230.

Here, the connector 240 may be coupled to one end of the safety net 200 in the form of a metal bar, and one or more fastening holes may be formed along the longitudinal direction of the connector 240.

At this time, the connector 240 can pass through the fastening member B through the fastening hole, and can be coupled to the lower end of the adjacent work structure 100.

Of course, the installation position of the connector 240 can be applied to various positions in consideration of the shape of the formwork structure 100 and the working conditions.

When the winding unit 230 described above is applied to the safety net 200, it is preferable not to install the wire rope 220 described above.

At this time, both ends of the safety net 200 can be coupled to the formwork structure 100, and connectors 240 can be installed at both ends of the safety net 200, respectively.

Both ends of the safety net 200 can be coupled to adjacent mold structures 100 by passing the fastening members B through the fastening holes formed in the connectors 240.

In addition, the housing 231 may further include a stopper 250 for holding the position of the rotation shaft 232 fixedly.

For example, the stopper 250 may include a tooth 251, a stopper 252, and a second elastic member 253.

The teeth 251 are formed along the outer periphery of one end in the axial direction of the rotation shaft 232 and are rotated together with the rotation shaft 232 when the safety net 200 is taken out or wound.

Here, the teeth 251 are formed to be engaged in one direction. When the safety net 200 is taken out, the tooth 251 can be rotated while pushing up the front end of the latching part 252, which will be described later.

On the contrary, when the draw-out operation of the safety net 200 is stopped, the tooth 251 can be engaged with the front end of the latching opening 252, which is rotated in the latching direction by the returning elastic force of the elastic member 253 .

In this state, the safety net 200 is not wound around the outer periphery of the rotation shaft 232, and the current drawn length can be maintained.

As shown in FIGS. 4 and 5, the safety net 200 may be installed in a state in which the safety net 200 is partially rolled down to a lower portion in a state in which the rotation of the rotation axis 232 is completed.

In this way, when a part of the safety net 200 is stretched, when the falling object falls on the upper surface of the safety net 200, the falling object can be prevented from being repelled by the repulsive force of the safety net 200.

The stopper 252 is rotatably installed inside or outside the housing 210 so that the front end of the stopper 252 is engaged with or engaged with the tooth 251.

1 and 2, the latching part 252 and the teeth 251 can be rotatably installed on one of the left and right sides of the housing 231.

The front end of the stopper 252 can be closely attached to the outer periphery of the tooth 251 by a torsional elastic force of the second elastic member 235 to be described later.

For example, as shown in FIGS. 4 and 5, when the operator wishes to wind the safety net 200 in a short length, the front end of the stopper 252 can be spaced away from the teeth 251.

At this time, the safety net 200 can be wound on the rotary shaft 232 by the returning elastic force of the second elastic member 235, which will be described later.

The second elastic member 235 is provided at the center of rotation of the stopper 252 and applies a restoring elastic force to bring the front end of the stopper 252 into close contact with the tooth 251.

Here, the second elastic member 235 may be a torsion spring for rotating the stopper 252.

When the second elastic member 235 is applied as a torsion spring, one end of the second elastic member 235 may be fixed to the housing 231 and the other end thereof may be fixed to the stopper 252.

Here, the second elastic member 253 applies a torsional elastic force to the stopper 252 so that the stopper 252 is rotated in the winding direction.

The second elastic member 253 may be formed in the form of a torsion spring for rotating the stopper 252 in the winding direction.

5, the railroad girder 300 may be vertically positioned adjacent to one end of the safety net 200. As shown in FIG.

The railroad rail 300 may be made of a metal material so as to have a predetermined strength, and a step may be formed to raise or lower the worker.

The railroad girder 300 can be used by an operator to connect the connection port 240 of the safety net 200 to the lower end of the formwork structure 100.

As shown in FIGS. 4 and 5, the apparatus for preventing falling and falling objects for external formwork according to the present invention is installed in a state where the gap S between the formwork structures 100 is blocked, Thereby preventing falling objects from falling at the interval S.

6 and 7, when the safety net 200 is pulled out through the entrance of the housing 231, the safety net 200 can be extended in the vertical direction when any one of the work structures 100 is raised.

In this state, since the drawn length of the safety net 200 is extended corresponding to the widening of the interval S between the formworks 100, the falling objects S fall apart at the interval S between the formworks 100 Do not.

As a result, the safety net 200, which is adjustable in length, is provided between the formwork structures 100, so that the fallen objects do not fall down during the work of installing the formwork, so that the safety of the worker can be secured.

In addition, since the installation position of the safety net 200 is not required to be changed during the process of raising the work structure 100, it is possible to save time and cost in changing the position of the safety net 200.

Although the present invention has been described with respect to specific embodiments for fall and fall prevention devices for external form, it is obvious that various modifications are possible within the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

10: Building structure 11: Wall
100: Formwork structure 200: Safety net
210: fastening hole 220: wire rope
230: winding section 231: housing
232: rotation shaft 233: first elastic member
240: Connector 250: Stopper
251: tooth 252:
253: second elastic member 300: railing
B: fastening member

Claims (7)

A plurality of work form structures disposed along the outer side surface of the concrete wall forming position and sequentially positioned at a height of the concrete pouring height and both ends connected to the adjacent end portions of the work form structures, And a safety net extending at both ends to prevent falling objects from falling between the form structures,
In one of the work structures, wire ropes arranged in one or more rows are installed vertically. The wire rope is coupled in a zigzag manner so that the wire rope is folded up and down when the work structure is lifted or lowered Wherein the falling and fall prevention device for the outer formwork is characterized in that the falling and falling fall prevention device is extended. delete A plurality of work form structures disposed along the outer side surface of the concrete wall forming position and sequentially positioned at a height of the concrete pouring height and both ends connected to the adjacent end portions of the work form structures, And a safety net extending at both ends to prevent falling objects from falling between the form structures,
The safety net is provided at one end of the safety net with a winding part coupled to any one of the die structures and being capable of being drawn out while the safety net is wound inside, And a connection port that is attached to and detached from the work structure opposite to the installation position of the work structure,
Wherein the winding unit comprises: a housing coupled to one side of the work structure; a rotating shaft rotatably installed at both ends in the axial direction so as to be rotatable in the front and rear directions, and a returning elastic force applied to the rotating shaft, And a first elastic member for rotating the first elastic member in the direction of winding. delete The method of claim 4,
Inside the housing,
Further comprising a stopper for maintaining a position of the rotating shaft fixedly. The method of claim 5,
The stopper
A tooth formed along an outer periphery of one end in the axial direction of the rotation shaft and rotated together with the rotation shaft,
A latching unit rotatably installed inside or outside the housing and having a front end engaged with or engaged with the teeth,
And a second elastic member which is provided at a rotation center of the stopper and applies a returning elastic force to bring the front end of the stopper into close contact with the teeth. The method according to claim 1,
At the lower end of one of the die structures,
Further comprising a balustrade vertically positioned adjacent to the safety net and having a stepped portion for raising or lowering the railing.

Images