KR20210032181A - Gang form safety lifting apparatus - Google Patents

Abstract

A safety lifting apparatus for gang form according to the disclosed present invention comprises: a lifting hook part of which opposite ends are fixed to adjacent vertical members installed adjacent to each other in an upright state on the gang form; a safety hook part disposed on one side of the lifting hook part so that opposite ends thereof are installed on the vertical members to be able to be lifted; a body part fixed to the vertical members and formed in a hollow shape; a locking part disposed in the body part, and interlocked with the safety hook part to interfere with or release interference from a locking protrusion protruding from a fixed bolt fixed to the gang form; and an elastic part provided in the body part and configured to provide elastic force so that the locking part is lowered at all times. According to the present invention, normally, the locking part interferes with the rotation of the locking protrusion extending from the fixing bolt. When a safety hook is lifted together with a lifting hook, the locking part is interlocked therewith to be spaced apart from the locking protrusion of the fixed bolt so that rotation interference of the fixed bolt is released, thereby improving safety. Moreover, a head part of the fixed bolt is provided doubly in different sizes and thus, the bolt can be used for general purposes.

Description

GANG FORM SAFETY LIFTING APPARATUS}

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

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

The gang form consists of a plurality of parts such as a cage in which a steel form, a working footrest, and a handrail are installed, and a fixing bolt that fixes the steel form to the inner form.

In order to construct the outer wall of a building, a large number of gangfoams, which are large structures, are used, and when work on one floor is completed, the gangfoam is lifted to construct the outer wall of the next floor using a crane.

At this time, in order to lift the gang form, first disassemble the rest of the fixing bolts fixing the gang form except for the lower one, and operate the crane after dismantling the lower fixing bolt while the hook of the crane is hooked to the lifting ring.

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

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

Korea Open Utility Model No. 2011-0001119 (2011.02.01) Korean Utility Model Registration No. 0476739 (2015.03.20)

The present invention was conceived in consideration of the above points, and an object of the present invention is to provide a gang form safety lifting device capable of preventing the fixing bolt from loosening itself, rather than covering the fixing bolt. .

The gangfoam safety lifting device according to the present invention for achieving the above object comprises: a lifting ring portion fixed at both ends of a neighboring vertical member installed adjacent to the gangfoam in an upright state; A safety hook part which is located on one side of the lifting hook part and has both ends installed so as to be elevating in the vertical member; A body portion fixed to the vertical member and formed with a hollow inside; A locking part positioned inside the body part and interlocking with the safety hook part to interfere with or cancel the interference with a locking protrusion protruding from the fixing bolt fixed to the gang form; And an elastic portion provided inside the body portion to provide an elastic force so that the locking portion always descends.

A connection part extending in the longitudinal direction is provided on the safety hook part, and the body part, a locking part, and an elastic part are provided at each position corresponding to a fixing bolt located on an outer vertical member adjacent to the vertical member among the connection parts, and the locking The addition may interfere with or cancel the interference with the locking protrusion of the fixing bolt located on the outer vertical member.

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

The fixing bolt may be provided in multiple stages with different head sizes.

According to the present invention, the locking part is interfering with the rotation of the locking protrusion extended from the fixing bolt in normal times, and when the safety hook is raised together with the lifting ring, the locking part is interlocked and separated from the locking protrusion of the fixing bolt. There is an effect of improving safety by canceling the interference.

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

1 is a front view showing a gang form safety lifting device of the present invention.
2 is a perspective view showing a safety hook fixing part, a body part, and a locking part in the gangfoam safety lifting device of the present invention.
3 is a front view partially showing a state provided to prevent rotation of the fixing bolt through the locking portion in the gangfoam safety lifting device of the present invention.
4 is a front view partially showing a state in which the locking part is spaced apart from the fixing bolt and the fixing bolt is rotatable in the gangform safety lifting device of the present invention.
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.
6 is a side view partially showing a state in which the locking part is spaced apart from the fixing bolt and the fixing bolt is rotatable in the gangform safety lifting device of the present invention.
7 is a side view partially showing a state in which an outer fixing bolt is provided to prevent rotation through a locking portion in the gangfoam safety lifting device of the present invention.

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

1 is a front view showing a gang form safety lifting device of the present invention, Figure 2 is a perspective view showing a safety hook fixing portion, a body portion and a locking portion in the gang form safety lifting device of the present invention, Figure 3 is the gang form safety of the present invention A front view partially showing a state in which the fixing bolt is not rotated 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 can be rotated. It is a front view partially showing, and FIG. 5 is a side view partially showing a state in which the fixing bolt is provided to prevent rotation 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 separated from the fixing bolt so that the fixing bolt is rotatable, and FIG. 7 shows 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. It is a partially illustrated side view.

1 to 7, the gangfoam safety lifting device 100 of the present invention includes a lifting hook part 110, a safety hook part 120, a safety hook fixing part 130, a body part 140, a locking part It includes 150, an elastic portion 160 and a connection portion 170.

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

Further, plate-shaped bolt support portions 44 are provided on the front surface of the adjacent vertical member 30 to support the front end of the fixing bolt 40 fixed to the gang form 10 through the bolt support portion 44.

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

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 greater than the area of the second head portion 42b. It is formed in a large state. In this way, the first head portion 42a and the second head portion 42b have different areas and can be used by being combined with a head portion suitable for a tool.

The locking protrusion (42c) is formed protruding between the first head (42a) and the body portion, and when the end of the locking portion (150) is adjacent, it interferes with the rotation of the fixing bolt (40), and the locking portion (150) When the ends of the are spaced apart, the rotation of the fixing bolt 40 is canceled.

The lifting ring 110 is composed of an arch-shaped arch portion formed in a semicircular shape as shown in FIGS. 1, 5, and 6, and a vertical portion extending in a vertical direction from both ends of the arch portion, and both vertical portions are gangfoam ( A pair of spaced apart from 10) is fixed to the outer wall of the vertical member 30 installed in an upright state, respectively, through welding or the like.

Safety hook portion 120 is installed in front of the lifting ring 121, as shown in Figs. 1, 5 and 6, the arch-shaped arch portion formed in a semicircular shape, and extending in the vertical direction from both ends of the arch portion Consisting of a vertical portion, the upper and lower portions of both vertical portions are supported to be movable up and down by an annular upper and lower fasteners (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 hook portion 120 may be optionally provided with a spring between the end and the lower fastener, and the hook (C) in the safety hook portion 120 raised by the restoring force of the spring. ) To be removed, the safety ring 120 is in its original position.

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

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 height direction so as to be coupled to the vertical portion of the safety ring 120 at the rear end of the safety ring fixing unit 130.

The binding groove 134 is formed in a width corresponding to the thickness of the connection part 170 on the top surface of the front end of the safety hook fixing part 130.

Moreover, the fastening hole 136 is formed in the fastening groove 134 so that the bolt B1 is helically 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 portion of the safety hook fixing portion 130, it is possible to fix the position to the vertical portion of the safety hook portion 120.

Moreover, although not shown in the drawing, it is fastened with a bolt (B1) in a state in which the spherical member and the spring are sequentially inserted into the lateral spiral hole formed in the lower part of the safety hook fixing part 130, depending on the degree of fastening of the bolt (B1). A spring can be made to pressurize the spherical member. At this time, a plurality of hemispherical grooves are formed on the front of the safety hook portion 120 facing the bolt (B1) at each set interval, so that when an old member is located in the groove, the position of the safety hook fixing portion 130 is temporarily fixed. Keep it. 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 positioned on the same horizontal line as the spherical member, the groove is coupled to the spherical member by the restoring force of the spring. Thereafter, when the bolt (B1) is completely fastened, the spherical member is firmly coupled to the groove formed in the front surface of the safety hook part 120, and the position of the safety hook fixing part 130 is fixed.

The body part 140 is fixed to the center of the front of the connecting piece 132 installed on the front of the vertical member 30 arranged adjacent to each other as shown in FIGS. It is formed through in the direction. In this case, the body portion 140 has been illustrated as having a rectangular pillar shape, but the present invention is not limited thereto and may be changed to a circular pillar shape.

Moreover, the body portion 140 is formed with the upper fixed 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 into the elastic portion 160 Will be prevented.

The locking part 150 is located inside the fastening hole 142 of the body part 140 as shown in FIGS. 1 to 6 and interlocked with the safety hook part 120 to be fixed to the gang form 10. It lifts and descends to interfere with or cancel the interference with the locking protrusion 42c protruding from 40), and includes a locking protrusion 152 and a locking protrusion 154.

That is, the locking part 150 is formed in a longitudinal axis shape, the locking protrusion 152 is protruded to support the upper surface of the connection part 170 at the top of the front side, and is formed extending in a tapered shape at the bottom to be fixed. It consists of a locking protrusion 154 that is in close contact with or spaced apart from the locking protrusion 42c protruding from the bolt 40.

Moreover, the locking part 150 supports the lower end of the elastic part 160 inserted into the binding hole 142 of the body part 140 by protruding a lower fixed jaw 156 under the outer circumferential surface.

Therefore, the locking part 150 is raised by the locking jaw 152 caught in the connecting portion 170 when the safety hook portion 120 is raised to release the fixing bolt 40, 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. On the contrary, when the safety hook part 120 descends to prevent loosening the fixing bolt 40, it is lowered by the locking jaw 152 caught in the connection part 170, and the lower fixing jaw 156 is As the lower end is decompressed, the locking protrusion 154 is coupled to the locking protrusion 42c protruding from the fixing bolt 40.

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

The connection part 170 is formed in a bar shape extending in the transverse direction as shown in FIGS. 1 to 6 to transmit the lifting force of the safety hook fixing part 130 to the locking part 150, The locking part 150 and the lifting hook part 110 and the safety hook part 120 have a function of interlocking the outer locking part 150 ′ installed on the outer vertical member 30 ′ to which the safety hook part 120 is not installed.

On the other hand, although it is illustrated that outer locking portions 150' are installed at both ends of the connection portion 170, the number of installations can be increased or decreased.

Moreover, the outer body part 140', the outer locking part 150', and the outer elastic part 160' are installed at both ends of the connection part 170 as shown in FIGS. 1 and 7. Since the function is the same as the body portion 140, the locking portion 150 and the elastic portion 160 described above, a detailed description will be omitted.

As a result, the outer locking portions 150 ′ installed at both ends of the connection unit 170 are also interlocked with the locking unit 150 to prevent rotation of the locking protrusions 42c of the fixing bolts 40 installed for each of the outer vertical members 30 ′. Or, the interference is canceled so as to be rotatable.

Here, unexplained reference numeral 152' denotes an obstruction protrusion, and 154' denotes an obstruction protrusion.

In this way, the operation process of the gang form safety lifting device 100 according to the present invention will be described as follows.

First, when lifting the gang form 10, the locking protrusion 42c of the fixing bolt 40 fixing the gang form 10 before hooking the hook of the crane C to the lifting hook 110 ), because it is being interfered with by the locking protrusion 154, the operator recognizes that the hook is in a separated state.

And when the hook of the crane (C) is simultaneously hooked on the lifting hook part 110 and the safety hook part 120 to lift the gang form 10 to the next floor after construction of the outer wall and slightly lifted, the safety hook part 120 As the safety hook fixing part 130 fixed to the safety hook part 120 rises as much as the elevation height, the connection part 170 lifts the locking part 150.

Next, when the locking portion 150 is raised and the locking projection 152 formed at the lower portion is separated from the locking protrusion 42c of the fixing bolt 40, the operator can loosen the fixing bolt 40.

Thereafter, the worker dismantles the fixing bolt 40, and after the disassembly ends, the gang form 10 is lifted with a crane C to move to the next floor, and the fixing bolt 40 is fastened to fix the wall.

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

Embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You will be able to understand. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects.

100: gangfoam safety lifting device 110: lifting hook portion
120: safety hook part 130: safety hook fixing part
132: coupling hole 134: coupling groove
140: body 142: binding hole
150: locking part 152: locking jaw
154: stopping protrusion 160: elastic portion
170: connection

Claims (4)

Lifting hooks fixed at both ends of a neighboring vertical member installed adjacent to the gangform in an upright state;
A safety hook part which is located on one side of the lifting hook part and has both ends installed so as to be elevating from the vertical member;
A body portion fixed to the vertical member and formed with a hollow inside;
A locking part positioned inside the body part and interlocking with the safety hook part to interfere with or cancel the interference with a locking protrusion protruding from the fixing bolt fixed to the gang form; And
And an elastic portion provided inside the body portion to provide an elastic force so that the locking portion always descends.
The method of claim 1,
A connection part extending in the longitudinal direction is provided on the safety hook part,
The body part, the locking part, and the elastic part are provided at each position corresponding to the fixing bolt located on the outer vertical member adjacent to the vertical member among the connecting parts, and the locking part interferes with the locking protrusion of the fixing bolt located on the outer vertical member. Gang form safety lifting device, characterized in that to cancel the interference.
The method of claim 2,
A gangfoam safety lifting device, characterized in that it further comprises a safety hook fixing part having a coupling groove formed at one end so that a plurality of lower ends of the connection part can be fixed, and a coupling hole formed at the other end so as to be coupled to the safety hook part.
The method of claim 1,
The fixing bolt is a gang form safety lifting device, characterized in that the head is provided in multiple stages of different sizes.

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