KR102322705B1 - Gang form safety lifting apparatus - Google Patents

Abstract

The gangform safety lifting device according to the present invention disclosed includes: a lifting ring part having both ends fixed to adjacent vertical members installed adjacent to each other in an upright state on the gangform; a safety ring portion positioned at one side of the lifting ring portion and having both ends installed so as to be lifted from the vertical member; a body part fixed to the vertical member and having a hollow inside; a locking part interlocking or interfering with a locking protrusion protruding from a fixing bolt fixed to the gangform by interlocking with the safety hook while being positioned inside the body; and an elastic part provided inside the body part to provide an elastic force so that the lock part always descends.
According to the present invention, in normal times, the locking part interferes with the rotation of the locking projection extending from the fixing bolt, and when the safety ring is raised together with the lifting ring, the locking part is interlocked and separated from the locking projection of the fixing bolt, so the rotation of the fixing bolt The interference is released and the safety is improved, and the head of the fixing bolt is provided with a double size with different sizes, so it can be used legally.

Description

Gangform Safety Lifting Device {GANG FORM SAFETY LIFTING APPARATUS}

The present invention relates to a gangform safety lifting device, and more particularly, to a gangform safety lifting device that enables rotation of a fixing bolt fixed to a gangform only when the safety ring is raised together with the lifting ring.

In general, high-rise buildings are constructed by pouring concrete on the exterior wall, and in this process, a large steel structure, gang form, is used.

The gang form consists of a plurality of parts, such as a cage in which a steel form, a work platform, a handrail, etc. are installed, and a fixing bolt for fixing the steel form to an inner form.

In order to construct the exterior wall of a building, multiple gangforms, which are large structures, are used, and when the work of one floor is completed, the gangform is lifted using a crane to construct the exterior wall of the next floor.

At this time, in order to lift the gang form, first dismantle the rest of the fixing bolts fixing the gang form except for the lower part, and then operate the crane after dismantling the lower fixing bolt while the crane's hook is attached to the lifting ring.

The technology related to such a gangform safety lifting device has been proposed in Korean Utility Model No. 2011-0001119 and Korean Utility Model No. 0476739.

However, since Patent Documents 1 and 2 are limited only to covering the anchor bolt, there is a problem in that the anchor bolt can be artificially loosened if the fixing bolt cover and the safety cover are moved due to the operator's mistake.

Korea Public Utility Model No. 2011-0001119 (2011.02.01) Korea Registered Utility Model No. 0476739 (2015.03.20)

The present invention has been devised in view of the above points, and an object of the present invention is to provide a gangform safety lifting device capable of preventing the loosening of the fixing bolt itself, rather than covering the fixing bolt. .

A gangform safety lifting device according to the present invention for achieving the above object includes: a lifting ring part having both ends fixed to adjacent vertical members installed adjacent to each other in an upright state on the gangform; a safety ring portion positioned at one side of the lifting ring portion and having both ends installed so as to be lifted from the vertical member; a body part fixed to the vertical member and having a hollow inside; a locking part interlocking or interfering with a locking protrusion protruding from a fixing bolt fixed to the gangform by interlocking with the safety hook while being positioned inside the body; and an elastic part provided inside the body part to provide an elastic force so that the lock part always descends.

A connection part extending in the longitudinal direction is provided on the safety ring part, and the body part, the lock part and the elastic part are respectively provided at positions corresponding to the fixing bolts located on the outer vertical member adjacent to the vertical member among the connection parts, The additional may interfere with or release the interference of the locking projection of the fixing bolt located on the outer vertical member.

A binding groove is formed at one end so that a plurality of points at the lower end of the connection unit can be fixed, and a safety ring fixing unit having a coupling hole formed at the other end to be coupled to the safety ring unit may be further included.

The fixing bolt may be provided in multiple stages with different heads.
Gangform safety lifting device according to the present invention includes: a lifting ring part having both ends fixed to adjacent vertical members installed adjacent to each other in an upright state on the gangform; a safety ring portion positioned at one side of the lifting ring portion and having both ends installed so as to be lifted from the vertical member; a body part fixed to the vertical member and having a hollow inside; a locking part interlocking or interfering with a locking protrusion protruding from a fixing bolt fixed to the gangform by interlocking with the safety hook while being positioned inside the body; and an elastic part provided inside the body part to provide an elastic force so that the lock part is always descended, wherein the lock part is fixed to the gang form by elevating by a connection part provided to ascend and descend together with the elevation of the safety ring part. Interfering or canceling the lock protrusion protruding from the fixing bolt, the connection part is formed in a plate shape, the length in the vertical direction is longer than the plate thickness, and the lock part is provided with a locking protrusion, and the connection part is the locking jaw The interference is released by lifting the lock protrusion protruding from the fixing bolt, and the locking protrusion is formed in a plate shape, and is characterized in that the length in the vertical direction is longer than the thickness of the plate.

According to the present invention, in normal times, the locking part interferes with the rotation of the locking projection extending from the fixing bolt, and when the safety ring is raised together with the lifting ring, the locking part is interlocked and separated from the locking projection of the fixing bolt, so the rotation of the fixing bolt There is an effect that the interference is canceled and the safety is improved.

In addition, the present invention has an effect that can be used legally by having a double head of a fixing bolt having a different size.

1 is a front view showing a gang form safety lifting device of the present invention.
Figure 2 is a perspective view showing the safety ring fixing part, the body part and the locking part in the gang form safety lifting device of the present invention.
Figure 3 is a front view partially showing a state provided in the gang form safety lifting device of the present invention to prevent the fixing bolt from rotating through the lock.
4 is a front view partially showing a state in which the locking part is spaced apart from the fixing bolt in the gangform safety lifting device of the present invention so that the fixing bolt is rotatable.
Figure 5 is a side view partially showing a state in which the fixing bolt is not rotated through the lock in the gang form safety lifting device of the present invention.
6 is a side view partially showing a state in which the locking part is spaced apart from the fixing bolt in the gang form safety lifting device of the present invention so that the fixing bolt is rotatable.
7 is a side view partially illustrating a state in which the outer fixing bolt is not rotated through the locking part in the gangform safety lifting device of the present invention.

The above objects, features and other advantages of the present invention will become more apparent by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a gangform safety lifting device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a front view showing the gangform safety lifting device of the present invention, Figure 2 is a perspective view showing the safety ring fixing part, the body part and the locking part in the gangform safety lifting device of the present invention, Figure 3 is the gangform safety of the present invention A front view partially showing a state in which the fixing bolt is prevented from rotating through the locking part in the lifting device, and FIG. 4 is a state in which the locking part is spaced apart from the fixing bolt in the gangform safety lifting device of the present invention so that the fixing bolt is rotatable is a partial front view, and FIG. 5 is a side view partially showing a state in which the fixing bolt is not rotated through the locking part in the gangform safety lifting device of the present invention, and FIG. 6 is a gangform safety lifting device of the present invention. It is a side view partially showing a state in which the locking part is spaced apart from the fixing bolt so that the fixing bolt is rotatable. It is a partially shown side view.

1 to 7, the gangform safety lifting device 100 of the present invention includes a lifting ring part 110, a safety ring part 120, a safety ring fixing part 130, a body part 140, and a lock part. 150 , an elastic part 160 and a connection part 170 are included.

At this time, the gangform safety lifting device 100 of the present invention includes a horizontal member 20 installed on one side wall of the gangform 10 in the height direction at set intervals as shown in FIGS. 1 to 4 , and a horizontal member 20 and It is supported by the vertical member 30 among the vertical members 30 installed in the width direction at set intervals so as to intersect.

Furthermore, plate-shaped bolt support parts 44 are provided on the front surface of the opposite surface of the adjacent vertical member 30 , respectively, to support the tip of the fixing bolt 40 fixed to the gang form 10 through the bolt support part 44 .

Here, the fixing bolt 40 is composed of a head portion rotated by a tool, and a body portion having a screw thread formed at an end thereof. And the head is composed of a first head portion 42a provided to have different sizes, a second head portion 42b and a locking protrusion 42c.

That is, the first head portion 42a and the second head portion 42b are formed in a hexagonal column shape having different areas, and the area of the first head portion 42a is larger than the area of the second head portion 42b. formed in a large state. In this way, the first head portion 42a and the second head portion 42b have different areas, so that they can be used by combining them with a head suitable for a tool.

The locking protrusion 42c is formed to protrude between the first head 42a and the body so that when the ends of the locking part 150 are adjacent to each other, the rotation of the fixing bolt 40 is interfered with, and the locking part 150 is formed. When the ends are spaced apart, the rotation of the fixing bolt 40 is released from interference.

As shown in FIGS. 1, 5, and 6, the lifting ring part 110 is composed of an arcuate arch formed in a semicircular shape, and vertical parts extending in the vertical direction from both ends of the arch part, and both vertical parts are gangform ( A pair of spaced apart from 10) is fixed to the outer wall of the vertical member 30 installed in an upright state through welding, etc., respectively.

The safety ring part 120 is installed in front of the lifting ring 121 as shown in FIGS. 1, 5 and 6, and extends in the vertical direction from both ends of the arch part and the arch part formed in a semicircle shape, respectively. The upper and lower portions of both vertical portions are supported so as to be movable up and down by annular upper and lower fixtures (not shown in the drawing) in the upper and lower positions of the outer wall of the vertical member 30 .

On the other hand, although not shown in the drawing, the vertical portion of the safety ring portion 120 can be optionally provided with a spring between the end and the lower fixture, and the hook (C) in the safety ring portion 120 raised by the restoring force of the spring. ) is removed, the safety hook 120 is returned to its original position.

" 형상으로 형성되며, 결합공(132) 및 결속홈(134)을 포함한다.As shown in FIGS. 1 to 7, the safety ring fixing unit 130 is fixed to each vertical part of the safety ring unit 120 to elevate the locking unit 150, and the side is "

It is formed in a “shape, and includes a coupling hole 132 and a binding groove 134 .

The coupling hole 132 is formed through the rear end of the safety ring fixing part 130 in the height direction so as to be coupled to the vertical part of the safety ring part 120 .

The binding groove 134 is formed with a width corresponding to the thickness of the connection part 170 on the upper surface of the tip of the safety ring fixing part 130 .

Furthermore, the fastening hole 136 is formed in the binding groove 134 so that the bolt B1 is spirally fastened, so that the connection part 170 can be firmly fixed through the fixing bolt B.

On the other hand, the bolt B1 is also fastened to the lower part of the safety ring fixing part 130 to fix the position in the vertical part of the safety ring part 120 .

Furthermore, although not shown in the drawings, the spherical member and the spring are sequentially inserted into the horizontal spiral hole formed in the lower part of the safety ring fixing part 130 and fastened with the bolt B1 according to the fastening degree of the bolt B1. A spring may force the spherical member. At this time, a plurality of hemispherical grooves are formed on the front surface of the safety ring portion 120 opposite to the bolt (B1) at each set interval, and when the sphere member is positioned in the groove, the position of the safety ring fixing portion 130 is temporarily fixed. to keep In this case, when the safety ring fixing part 130 is moved up and down, the upper and lower ends of the groove push the spherical member, and when the groove is located on the same horizontal line as the spherical member, the groove is coupled to the spherical member by the restoring force of the spring. After that, when the bolt (B1) is completely fastened, the position of the safety ring fixing part 130 is fixed while the spherical member is firmly coupled to the groove formed on the front surface of the safety ring part 120 .

The body portion 140 is fixed to the center of the front surface of the connecting piece 132 installed on the front surface of the adjacent vertical member 30 as shown in FIGS. 1 to 6, and the binding hole 142 formed hollow inside is longitudinal direction is formed. In this case, the body portion 140 has been illustrated as having a rectangular prism shape, but it is not limited thereto and may be changed to a circular prism shape or the like.

Furthermore, the body portion 140 has an upper fixing jaw 144 protruding along the upper end of the inner circumferential surface of the binding hole 142 to support the upper end of the elastic portion 160 inserted therein, and the elastic portion 160 is separated. will prevent

As shown in FIGS. 1 to 6 , the locking part 150 is positioned inside the binding hole 142 of the body part 140 and is interlocked with the safety hook part 120 and fixed to the gang form 10 by a fixing bolt ( 40) interfering with the protruding locking protrusion 42c, or elevating to release the interference, and includes a locking protrusion 152 and a locking protrusion 154.

That is, the locking part 150 is formed in a longitudinal axial shape, and a locking protrusion 152 is protruded to support the upper surface of the connection part 170 at the upper front end, and is formed to extend in a tapered shape at the lower end and fixed. It consists of a locking projection 154 that is closely or spaced apart from the locking projection 42c protruding from the bolt 40 .

Furthermore, the locking part 150 has a lower fixing jaw 156 protruding from the lower portion of the outer circumferential surface to support the lower end of the elastic part 160 inserted into the binding hole 142 of the body 140 .

Therefore, when the safety ring part 120 rises to loosen the fixing bolt 40, the locking part 150 is raised by the locking jaw 152 caught in the connection part 170, and the lower fixing jaw 156 is elastic. As the lower end of the part 160 is compressed, the locking protrusion 154 is spaced apart from the locking protrusion 42c protruding from the fixing bolt 40 . Conversely, when the safety ring part 120 is lowered in order to prevent the fixing bolt 40 from being loosened, it is lowered by the engaging jaw 152 caught in the connection part 170 and the lower fixing jaw 156 is the elastic part 160 . As the lower end is compressed, the locking projection 154 is coupled to the locking projection 42c protruding from the fixing bolt 40 .

The elastic part 160 is positioned to surround the locking part 150 inside the binding hole 142 of the body part 140 as shown in FIGS. 1 to 6 , and the upper end is on the upper fixing jaw 144 . It is fixed, and the lower end is fixed to the lower fixing jaw (156).

The connection part 170 is formed in the form of a bar extending in the transverse direction as shown in FIGS. 1 to 6 and transmits the lifting force of the safety ring fixing part 130 to the locking part 150, and It has a function of interlocking the locking part 150 and the outer locking part 150' installed on the outer vertical member 30' in which the lifting hook 110 and the safety hook 120 are not installed.

Meanwhile, although it has been exemplified that the outer locking units 150 ′ are installed at both ends of the connection unit 170 , the number of installations can be increased or decreased.

Furthermore, as shown in FIGS. 1 and 7, an outer body 140', an outer locking part 150', and an outer elastic part 160' are installed at both ends of the connection part 170, and each structure and Since the functions are the same as those of the body portion 140, the lock portion 150 and the elastic portion 160 described above, a detailed description thereof will be omitted.

As a result, the outer locking parts 150' installed at both ends of the connecting part 170 are also interlocked with the locking part 150 to prevent rotation of the locking protrusions 42c of the fixing bolts 40 installed for each outer vertical member 30'. Or, the interference is released rotatably.

Here, not described reference numeral 152' denotes a locking jaw, and 154' denotes a locking protrusion.

As described above, the operation process of the gangform safety lifting device 100 according to the present invention will be described as follows.

First, before the hook of the crane (C) is hung on the lifting ring part 110 when lifting the gang form 10, the locking protrusion 42c of the fixing bolt 40 fixing the gang form 10 is the locking part 150 ), since it is being interfered with by the protrusion 154, the operator recognizes that the hook is in a detached state.

And when the hook of the crane (C) is simultaneously hung on the lifting ring part 110 and the safety hook part 120 to raise the gang form 10 to the next floor after the outer wall construction is slightly lifted, the safety hook part 120 As the safety ring fixing portion 130 fixed to the safety ring portion 120 rises by the rising height, the connection portion 170 lifts the locking portion 150 .

Next, when the locking part 150 is raised and the locking jaw 152 formed on the lower part is spaced apart from the locking protrusion 42c of the fixing bolt 40 , the operator can loosen the fixing bolt 40 .

After that, the operator dismantles the fixing bolt 40, lifts the gang form 10 with a crane C, and moves it to the next floor after the dismantling is finished, and fastens the fixing bolt 40 to the wall.

And when the hook of the crane (C) is dismantled from the lifting ring portion 110 and the safety ring portion 120, the lock portion 150 is lowered by the restoring force of the elastic portion 160 in the compressed state, and the locking projection 154 ) interferes with the locking protrusion 42c of the fixing bolt 40 .

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing the technical spirit or essential features thereof. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: gang form safety lifting device 110: lifting ring part
120: safety hook 130: safety hook fixing part
132: coupling hole 134: binding groove
140: body 142: binding hole
150: lock 152: locking jaw
154: locking projection 160: elastic part
170: connection part

Claims (4)

a lifting ring part having both ends fixed to adjacent vertical members installed adjacent to each other in an upright state on the gang form;
a safety ring portion positioned at one side of the lifting ring portion and having both ends installed so as to be lifted from the vertical member;
a body part fixed to the vertical member and having a hollow inside;
a locking part interlocking or interfering with a locking protrusion protruding from a fixing bolt fixed to the gangform by interlocking with the safety hook while being positioned inside the body; and
an elastic part provided inside the body part to provide an elastic force so that the lock part always descends;
the locking part
Interfering or canceling interference with the lock protrusion protruding from the fixing bolt fixed to the gang form by lifting and lowering by the connecting portion provided to ascend and descend together with the lifting of the safety ring portion,
The connection part is formed in a plate shape, and is provided with a length in the vertical direction longer than the plate thickness,
The locking part is provided with a locking protrusion to release the interference of the locking projection protruding from the fixing bolt by the connection part lifting the locking protrusion,
The locking jaw is formed in a plate shape, and a gangform safety lifting device, characterized in that the length in the vertical direction is longer than the thickness of the plate.
According to claim 1,
The connection part is provided in the horizontal longitudinal direction to the safety ring part,
The body part, the locking part and the elastic part are respectively provided at positions corresponding to the fixing bolts located on the outer vertical member adjacent to the vertical member among the connection parts, so that the locking part interferes with the locking protrusion of the fixing bolt located on the outer vertical member or Gangform safety lifting device, characterized in that interference cancellation.
3. The method of claim 2,
Gangform safety lifting device, characterized in that it further comprises a safety ring fixing portion having a binding groove formed at one end so that a plurality of points at the lower end of the connection portion can be fixed, and a coupling hole formed at the other end to be coupled to the safety ring portion.
According to claim 1,
The fixing bolt is a gang form safety lifting device, characterized in that the head is provided in multiple stages with different sizes.

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