KR20190113468A - Gang form falling prevention apparatus with locker - Google Patents

Abstract

According to the present invention, a gang form fall prevention apparatus having a locking unit comprises: an operating unit including a hoisting ring arranged on one end thereof to be fixed on a gang form, and a safety ring arranged on the other end thereof to be lifted; a bolt cover unit rotationally arranged on the front surface of the gang form to cover or expose a fixing bolt coupled to a wall; a link unit to connect the safety ring and the bolt cover unit to be linked when the safety ring ascends and open and close the bolt cover unit; and a locking unit installed in the bolt cover unit to be rotated by the link unit, wherein an end thereof interferes with the bolt cover unit to prevent the bolt cover unit from being rotated or cancels interference. According to the present invention, the bolt cover unit and the safety ring are connected by a wire instead of a conventional method where the bolt cover unit and the safety ring are connected by a steel pipe to open and close the bolt cover unit to allow connection even if the positions of the safety ring and the bolt cover unit are different and flexibly allow connection even if the heights of the safety ring and the bolt cover unit are different. A plurality of neighboring fixing bolts can be simultaneously opened and closed by connecting a plurality of wires to a single fall prevention apparatus.

Description

Gang Form Fall Prevention Device with Lock {GANG FORM FALLING PREVENTION APPARATUS WITH LOCKER}

The present invention relates to a gangform fall prevention device having a lock, and more particularly, to a gangform fall prevention device that the bolt cover portion is opened through the lock portion only when lifting by a crane.

In general, the outer wall of a high-rise building such as an apartment, a building, or a shopping mall is mostly constructed by concrete pouring, and in order to construct the outer wall of the building, a large form of steel, that is, a gang form, is used.

Since these gangforms have large deformations due to their own rigidity, they have almost no deformation due to the pressure of the concrete.The surface quality of the cured walls is excellent, and the life is semi-permanent as the installation and demolition work is easy and repeated reuse is possible. It also plays a role of maintaining the defined shape and dimensions while preventing the leakage of water until the concrete hardens, and also protects it from external influences.

In addition, the gangform is a cage installed with a scaffold and a safety railing to securely perform the external wall formwork for the exterior wall of the building, the installation and dismantling of the formwork other than the external wall formwork, and the subsequent plastering and securing work. It consists of parts, such as fixing bolts for fastening to the anchor bolt of the wall by connecting the external wall formwork.

Moreover, the gangform is pulled up by using lifting equipment such as tower crane installed at the construction site.The hook of the lifting equipment is connected to the lifting ring of the gangform, and the fixing bolt is removed from the anchor bolt embedded in the wall. After lifting the gang form by the operation of lifting equipment such as a crane, the outside wall formwork is fixed by fixing bolts to repeat the process of constructing the outer wall of the building.

However, when pulling up the gangform, the lifting bolts of the lifting equipment such as tower crane is often dismantled before being coupled to the lifting ring of the gangform, and this causes a problem that the gangform and workers fall frequently.

A technique for solving such a problem has been proposed in Korean Patent Registration No. 10-0892615.

Patent Literature 1 shows that the safety cover covers the fixing bolt in the state where the lifting ring is not caught by the hook of the crane, so that the safety cover is moved only when the lifting ring is caught by the hook of the crane. It describes a gangform safety lifting system that can prevent accidents caused by dismantling the fixed bolts without being caught.

However, Patent Document 1, because the safety hook and the safety cover is connected through the steel pipe so that the safety cover is interlocked when the safety hook is lifted, the safety hook and the safety cover should be located on the same vertical line, the installation of the safety hook and the safety cover If the position is different, each must be installed separately, there is a problem that must be provided separately for each installation position by configuring the safety hook portion and the safety cover as a set.

Korea Patent Registration No. 10-0892615 (Registration Date: 2009.04.02.)

The present invention has been made in view of the above, the problem of the present invention, unlike the conventional way to connect the bolt cover and the safety ring through the steel pipe to open and close the bolt cover, the safety ring and bolt cover portion wire It can be connected even if the position of safety ring and bolt cover is different by connecting through it, and it is possible to connect fluidly even if the height and height of safety cover and bolt cover are different. Can be opened and closed at the same time, and both the lifting and safety rings can be selectively provided with a locking part connected to the safety ring so that the bolt cover is opened only when the gangform is lifted in the state of being mounted on the crane. It is an object of the present invention to provide a gang foam fall prevention device that prevents it.

Gang form fall prevention device having a lock according to the present invention for achieving the above object, the operating part including a lifting ring provided to be fixed to the gang form at one end, and a safety ring provided to be able to lift at the other end; A bolt cover part rotatably provided on the front surface of the gangform to cover or expose the fixing bolt fastened to the wall; An interlocking portion connecting both ends of the wire member to the safety ring and the bolt cover part to open and close the bolt cover part while being interlocked by the wire member when the safety ring is raised; And a locking part rotatably installed in the bolt cover part by the interlocking part, and having an end portion interfering with or preventing the bolt cover part from being rotated.

In addition, the present invention, the operating portion including a lifting ring provided to be fixed to the gang form at one end, and a safety ring provided to be able to lift at the other end; A bolt cover part rotatably provided on the front surface of the gangform to cover or expose the fixing bolt fastened to the wall; And an interlocking part connecting the both ends of the wire member to the safety ring and the bolt cover part to open and close the bolt cover part while being interlocked by the wire member when the safety ring is raised.

The interlocking part is provided with a tube-shaped closing member closed at one end and first and second ends, and inserted into the closing member and movable in the longitudinal direction, and having first and second locking holes at one end and the other end. And a wire member which is a wire, wherein the second finisher is supported on a fixed body part fixed to a lower front surface of the pair of vertical frames installed on the gangform, and the second catchment part may be supported on an end opposite to the protrusion of the locking part. .

At least one coupling groove is formed so that a finishing fixture fixing member is fixed to an upper front surface of the vertical frame so that a first finishing tool finishing one end of the finishing member of the interlocking portion is inserted into and fixed to an end of the finishing fixture fixing member. At least one first coupling groove may be formed between the upper ends of the vertical frames so that the end of the elevating member may engage the first locking hole provided at one end of the wire of the interlocking portion while corresponding to the coupling groove. Can be.

The linkage part may be supported by the fixed body part while the other end is bent in an arc shape between the vertical frames.

The bolt cover part is installed in the height direction at the upper end direction of the fixed body portion rotatably installed, the bolt cover block the space with the fixed body portion during the non-rotation of the bolt cover portion, when the bolt cover portion rotates Space blocking member for limiting the rotation angle of the bolt cover portion may be provided.

The bolt cover part and the locking part may be rotated by the first and second rotation shafts, and may be supported by the torsion springs respectively inserted into the first and second rotation shafts.

According to the present invention, unlike the conventional method of connecting the bolt cover and the safety ring through the steel pipe to open and close the bolt cover, it is possible to connect the safety ring and the bolt cover by connecting the safety ring and the bolt cover through the wire is different. It can be connected flexibly even if the height of the safety ring and bolt cover is different, and it can open and close multiple fixed bolts at the same time by connecting multiple wires to one fall prevention device. It is possible to selectively provide a locking part connected to the safety ring so that the bolt cover is opened only when the gangform is lifted in a state, so that an operator cannot artificially open the bolt cover, and the other end of the connecting part connecting the locking part is It is curved in an arc shape from the inside and fixed to the fixed body part The length of the bolt cover can be reduced, and when connecting one end of the connecting part to the safety ring, while holding the first end connected to one end of the finishing member, the first catching part connected to one end of the wire is first inserted into the first coupling groove. It is easy to combine work by coupling to the coupling groove.

1 is a perspective view showing a gangform fall prevention device having a lock according to a first embodiment of the present invention.
Figure 2 is a side cross-sectional view showing a state before and after the operation of the gangform fall prevention device having a lock according to a first embodiment of the present invention.
Figure 3 is an enlarged side cross-sectional view showing an upper portion of the gangform fall prevention device having a locking portion according to the first embodiment of the present invention.
Figure 4 is a perspective view showing a safety ring and the lifting member and the fastener fixing member fixed in the gangform fall prevention device having a lock according to the first embodiment of the present invention.
5 and 6 are side cross-sectional views of the opening and closing state before and after the bolt cover in the gangform fall prevention device having a lock according to the first embodiment of the present invention.
Figure 7 is a state diagram showing the state applied to a plurality of fixing bolts by the gangform fall prevention device having a lock according to the first embodiment of the present invention.
Figure 8 is a side cross-sectional view showing a state before and after the operation of the gangform fall prevention device having a lock according to a second embodiment of the present invention.
9 and 10 are side cross-sectional views of the opening and closing state before and after the bolt cover in the gangform fall prevention device having a lock according to a second embodiment of the present invention.

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

1 to 7, the gangform fall prevention device having a lock according to the first embodiment of the present invention 100 is a vertical frame 110, lifting ring 120, safety ring 130, interlocking The part 140, the fixing body part 150, the bolt cover part 160, and the locking part 170 are included.

The lifting ring 120 is composed of an arch-shaped arch portion formed in a semicircle shape as shown in FIGS. 1 and 2, and a vertical portion extending in a vertical direction from both ends of the arch portion, and both vertical portions are spaced apart from the gangform 10. The pair is fixed to the outer wall of the vertical frame 110 installed in a number of upright, respectively, by welding or the like.

Safety ring 130 is installed in front of the lifting ring 120, as shown in Figures 1 and 2, consisting of an arch-shaped arch portion formed in a semicircular shape, and a vertical portion extending in the vertical direction at both ends of the arch portion, respectively Thus, both vertical parts may be supported on the top of the outer wall of the vertical frame 110 so as to be movable up and down by fasteners (not shown).

In addition, the vertical portion of the safety ring 130 is respectively penetrated through the insertion hole of the fixture, the stopper 138 is provided in each of the penetrated end. The stopper 138 is configured to support the lower end of the elastic member 137 to be fitted to the lower portion of the vertical portion, and has an outer diameter larger than the inner diameter of the elastic member 137 to prevent separation. And the upper end of the elastic member 137 is supported at the bottom of the fixture. Here, the stopper 138 may be formed in the form of a nut that is screwed to the bottom of the vertical portion of the safety ring 130.

"자인 승강부재(132)가 구비된다. 그리고 승강부재(132)는 이격된 한 쌍의 수직프레임(110)의 전면 상단에 고정되는 마감구 고정부재(134)에 의해 승강 방향을 안내받게 된다.Moreover, the safety ring 130 is fixed to the plate-shaped connecting piece 131 at the midpoint of the vertical portion, as shown in Figure 2 and 3, the side cross-sectional shape on the bottom of the connecting piece 131

"Zein lifting member 132 is provided. And the lifting member 132 is guided in the lifting direction by the finish fixing member 134 is fixed to the front top of a pair of spaced vertical frame 110.

As shown in FIGS. 3 and 4, the elevating member 132 is fixed to the bottom of the connecting piece 131, and the bent bottom is formed to have a corresponding width so as to be positioned between the pair of vertical frames 110. A plurality of long holes 132a in the height direction are formed in the vertical portions connected to the upper and lower ends.

Furthermore, the lower end of the elevating member 132 is bent again in the horizontal direction and the vertical direction so as to be parallel to the connecting piece 131, and the first coupling groove 133 partially cut at the outer surface is formed at the bent end. In the present exemplary embodiment, three first coupling grooves 133 are illustrated, and the number of the first coupling grooves 133 may be increased or decreased.

In this way, three first coupling grooves 133 are formed so that the bolt cover 160 is fixed to the vertical frame 110 and the other vertical frame 110 adjacent thereto, the fixing body 150 and the locking unit 170. ) Installed together and then connecting the ends of the three interlocking portions 140 connected to the respective locking portion 170 at the same time to the vertical frame 110, and fixing bolts installed in the other vertical frame 110 adjacent thereto ( B) can be covered or exposed simultaneously (see FIG. 7).

"자로 형성된다.1 and 2, the finishing fixture fixing member 134 is fixed to the upper front of the vertical frame 110 so that the elevating member 132 connected to the lower portion of the safety ring 130 can be elevated 132, the side cross-sectional shape is "

Is formed.

The finishing fixture fixing member 134 is provided with a connecting bracket 134a at the rear of the lifting member 132 so that the finishing member fixing member 132 and the bolt B1 can be fastened while the lifting member 132 is interposed therebetween.

At this time, the bolt (B1) is inserted from the outside of the finish fixing member 134 and passed through the long hole (132a) of the elevating member 132 is fastened to the connection bracket (134a).

A coupling groove 135 is formed at each lower side of the lower end fixing member 134 corresponding to the first coupling groove 133 of the elevating member 132, and a portion partially cut from the outer surface of each coupling groove 135. Grooves 136 are formed respectively. In the present embodiment, the coupling groove 135 may vary by the number of first coupling grooves 133.

The coupling groove 135 and the first coupling groove 133 may be formed in the direction of the gangform 10 to easily connect the upper end of the interlocking part 140. This is the first finishing hole 135 closed at the top of the finishing member 142 in a state in which the first engaging opening 141a connected to the upper end of the wire 141 of the interlocking part 140 is inserted into the first coupling groove 133. ) By holding in hand and pulling downward, inserting into the coupling groove 135 provided in the finish fixing member 134 can be easily operated with one hand.

2, 3 and 5, the linkage 140 is located inside the elevating member 132 and the finish fixing member 134 of the safety ring 130 and the bolt cover 160 as shown in FIG. By connecting the locking unit 170 to rotate the bolt cover unit 160 through the locking unit 170 while interlocking when the safety ring 130 is raised, the wire 141, the closing member 142 and the first and second Finishes 143 and 144.

The wire 141 is a line member inserted into the finishing member 142 and movable in the longitudinal direction, and first and second locking holes 141a and 141b are provided at the top and the bottom thereof, respectively.

In the first and second locking holes 141a and 141b, both ends of the wire 141 are caught by the first coupling groove 133 of the elevating member 132 and the valley member 172 of the locking unit 170, respectively. 141 is provided to be fixed.

The closing member 142 is provided in the form of a tube to surround the outside of the wire 141, the first and second finishing holes (143, 144) are closed at the upper and lower ends, respectively.

The first closure 143 is formed through the hole to be fixed to the upper end of the closing member 142, the upper end is inserted into the coupling groove 135 of the closure fixing member 134.

The second finishing hole 144 has a hole formed therein so as to be fixed to the lower end of the finishing member 142, and passes through an end of the second coupling groove 151a formed in the finishing member fixing member 134. A spiral is formed at the tip end to be fastened to the end by a binding nut 144a.

In this case, the second finishing hole 144 and the binding nut 144a may have a groove in the longitudinal direction formed up to a hole and firmly fixed to the lower end of the finishing member 142.

As shown in FIGS. 2 and 5, the fixed body part 150 is fixed to the lower part of the front part of the vertical frame 110 with a bolt or the like, and the first rotation shaft on both sides of the bolt cover part 160 can be rotated. The bolt cover 160 is supported by the 152.

And the fixed body portion 150 has a side cross-sectional shape is formed in the "c" shape, the rear end of the fixing member 151 is bent inclined bent to the rear of the horizontal portion, the upper portion of the interlocking portion 140 The wire passing hole 153a is formed to allow the wire 141 to pass therethrough, and the locking hole 153b is formed to penetrate the protrusion 171 of the locking unit 170 in the lower horizontal portion.

5, the end fixing member 151 is formed to be inclined without being parallel to the vertical part of the fixing body part 150 as shown in FIG. 5, and thus the end of the first finishing part 144 according to the rotation of the bolt cover part 160. In order to prevent the damage of the wire 141 of the linkage portion 140 is concentrated stress.

The first rotation shaft 152 is a component that connects the bolt cover portion 160 to be rotatable to the fixed body portion 150, may be formed in a bolt shape, both ends of the torsion spring (not shown in the figure) Each part is inserted and touched.

At this time, referring to Figure 5, the torsion spring provides an elastic force so that the bolt cover 160 is always rotated in the counterclockwise direction.

2 and 5, the bolt cover 160 is rotatably provided from the upper end by the first rotation shaft 152 on the inner lower portion of the fastener fixing member 151, and thus the vertical frame 110 is disposed. Cover or fasten the bolts (B) fastened to the wall through the bracket fixed to the exposed when raised.

At this time, the bolt cover 160 has an opening 161 is formed on the rear surface to surround the fixing bolt (B), the shaft insertion member 162 is formed on the upper end is formed is inserted into the first rotating shaft 152. And the shaft insertion member 162 changes the moving direction of the contacted wire 141 when the wire 141 of the interlocking portion 140 fixed to the finish fixing member 151 is supported by the locking unit 170. . However, when the bolt cover 160 is rotated, the position of the locking unit 170 is also changed, so that the wire 141 is spaced apart from the shaft insertion member 162.

Furthermore, the bolt cover 160 is installed in the height direction at the upper end of the upper horizontal portion of the fixed body portion 150, and the upper horizontal portion of the fixed body portion 150 when the bolt cover 160 is not rotated. The space blocking member 163 is provided to block the space and limit the rotation angle of the bolt cover 160 when the bolt cover 160 is rotated.

As shown in FIG. 5, the locking unit 170 is rotatably installed on both outer wall surfaces of the bolt cover unit 160 by the second rotating shaft 173, and a protrusion 171 is formed on the left side of the reference of the second rotating shaft 173. ) Is formed, and the winding member 172 of the winding shape is fixed to the second locking hole 141b installed at the rear end of the wire 141 on the right side of the second rotation shaft 173.

As a result, the locking unit 170 is a protrusion 171 when the wire 141 is pulled in a state in which the second locking hole 141b provided at the end of the wire 141 of the linking unit 140 is caught by the bending member 172. The bolt cover 160 is rotated upward by the restoring force of the torsion spring installed at both ends of the first rotation shaft 152 while being coupled to the lock hole 153b of the fixing body 150.

The second rotating shaft 173 is a component that connects the locking portion 170 to the fixed body portion 150 so as to be rotatable, and may be formed in a bolt shape, and winding portions of a torsion spring (not shown in the drawing) at both ends thereof. Each is inserted and burnt.

In this case, referring to FIG. 5, the torsion spring provides an elastic force so that the locking unit 170 is always rotated in a clockwise direction from the second rotation shaft 173.

As described above, the gangform safety device 100 having the upper and lower covers according to the first embodiment of the present invention lifts the hook of the crane when lifting the gangform 10 as shown in FIGS. 1 to 5. And before hanging on the safety ring 130, because the fixing bolt (B) for fixing the gangform 10 is covered by the bolt cover 160, the operator will recognize that the hook is removed from the gangform (10) .

At this time, since the space blocking member 163 is installed on the upper portion of the bolt cover 160, it is impossible to insert a finger or the like into the space with the upper horizontal portion of the fixed body portion 150.

And after lifting the gangform (10) to the next floor after the construction of the outer wall to lift the hook to the lifting ring 120 and the safety ring 130 slightly, safety ring as the height of the arch of the lifting ring (120) ( As the arch portion of the 130 rises, the upper end of the wire 141 of the linkage 140 fixed to the safety ring 130 is pulled.

Next, as the locking unit 170 connected to the lower end of the wire 141 is rotated counterclockwise from the second rotation axis 173, the protrusion 171 is locked at the locking hole 153b of the fixed body unit 150. The fixing bolt B is exposed to the outside while the bolt cover 160 'is rotated by the restoring force of the torsion spring installed on the first rotation shaft 152.

After that, the worker dismantles the fixing bolt (B), and after the dismantling, lift the gang foam (10) to the next floor by lifting the crane, lifting the hook by fastening the fixing bolt (B) to be fixed to the wall. When dismantled from the ring 120 and the safety ring 130, the bolt cover 160 by the restoring force of the elastic member 137 installed on the lower end of the vertical portion of the safety ring 130, and the torsion spring installed on the first rotating shaft 152 ) Is rotated downward to cover the fixing bolt (B).

8 to 10, the gangform fall prevention device having a lock according to the second embodiment of the present invention 100 vertical frame 110, lifting ring 120, safety ring 130, interlocking It includes a portion 140, the fixing body portion 150 and the bolt cover portion 160 ', the vertical frame 110, lifting ring 120, safety ring 130, interlocking portion 140 and fixed body portion 150 has the same structure and function as that of the foregoing embodiment, and thus a detailed description thereof will be omitted.

As shown in FIGS. 8 to 10, the bolt cover part 160 ′ is rotatably provided from the upper end by the first rotation shaft 152 on the inner lower portion of the fastener fixing member 151, and the vertical frame ( Cover the fixing bolt (B) fastened to the wall through the bracket fixed to 110 or expose when raised. That is, unlike the previous embodiment, the bolt cover portion 160 ′ omits the locking portion therein while the second insertion hole 141 b ′ of the wire 141 ′ is engaged with the shaft insert member 162 ′. Connection hole (H) is formed in the upper surface adjacent to the (). Here, the connection hole (H) is formed smaller than the diameter of the second locking hole (141b ') to prevent the separation of the second locking hole (141b').

At this time, the bolt cover portion 160 'has an opening 161' formed at the rear thereof to surround the fixing bolt B, and a shaft insertion member 162 'formed at the top thereof is formed to form the first rotation shaft 152. Is inserted. In addition, the shaft insertion member 162 ′ is in contact with the wire 141 ′ of the interlocking part 140 fixed to the closure fixing member 151 when supported by the connection hole H of the bolt cover 160 ′. The movement direction of the wire 141 'is changed. However, when the bolt cover 160 'is rotated, the position of the bolt cover 160' is also changed, so that the wire 141 'is spaced apart from the shaft insertion member 162'.

Moreover, the space blocking member 163 installed in the height direction on the upper portion of the bolt cover portion 160 'in the direction of the upper horizontal portion of the fixing body portion 150 also has the same structure and function as that of the previous embodiment, and thus the detailed description thereof will be omitted. do.

As described above, the gangform safety device having the upper and lower covers according to the second embodiment of the present invention lifts the hook of the crane when lifting the gangform 10 as shown in FIGS. 8 to 10. Before hanging on the 130, since the fixing bolt (B) fixing the gangform 10 is covered by the bolt cover portion 160 ', the operator will recognize that the hook is removed from the gangform (10).

And after lifting the gangform (10) to the next floor after the construction of the outer wall to lift the hook to the lifting ring 120 and the safety ring 130 slightly, safety ring as the height of the arch of the lifting ring (120) ( As the arch portion of the 130 rises, the upper end of the wire 141 ′ of the linkage portion 140 fixed to the safety ring 130 is pulled.

Next, while the bolt cover portion 160 ′ connected to the lower end of the wire 141 ′ is rotated counterclockwise from the first rotation shaft 152, the bolt is installed by the restoring force of the torsion spring installed on the first rotation shaft 152. The fixing bolt B is exposed to the outside while the cover 160 'is rotated.

After that, the worker dismantles the fixing bolt (B), and after the dismantling, lift the gang foam (10) to the next floor by lifting the crane, lifting the hook by fastening the fixing bolt (B) to be fixed to the wall. When dismantled from the ring 120 and the safety ring 130, the bolt cover 160 is lowered by the restoring force of the elastic member installed at the lower end of the vertical part of the safety ring 130 and the torsion spring installed on the first rotating shaft 152. Rotate in the direction to cover the fixing bolt (B).

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

10: Gang foam 100: Gang foam fall prevention device
110: vertical frame 120: lifting ring
130: safety ring 131: connection
132: elevating member 133: first locking groove
134: finish fixing member 135: locking groove
136: through groove 140: linkage
141, 141 ': wire 141a, 141b: 1st, 2nd latch
141b ': second latch 142: closing member
143, 144: 1st, 2nd closure 144a: binding nut
150: fixing body portion 151: finish fixing member
152: first rotating shaft 153a: wire through hole
153b: Lock hole 160, 160 ': Bolt cover portion
161, 161 ': opening 162, 162': shaft insertion member
170: locking portion 171; spin
172: bending member 173: second rotation axis
B: Fixing bolt H: Connecting hole

Claims (7)

An operation part including a lifting ring provided to be fixed to the gang form at one end and a safety ring provided to be liftable at the other end;
A bolt cover part rotatably provided on the front surface of the gangform to cover or expose the fixing bolt fastened to the wall;
An interlocking portion connecting both ends of the wire member to the safety ring and the bolt cover part to open and close the bolt cover part while being interlocked by the wire member when the safety ring is raised; And
The gangform fall prevention device having a lock part, characterized in that it is rotatably installed in the bolt cover portion by the interlocking portion, the end portion is interlocked or released to prevent the bolt cover portion from rotating. An operation part including a lifting ring provided to be fixed to the gang form at one end and a safety ring provided to be liftable at the other end;
A bolt cover part rotatably provided on the front surface of the gangform to cover or expose the fixing bolt fastened to the wall; And
The gangform fall prevention with a locking part, characterized in that by connecting the both ends of the wire member to the safety ring and the bolt cover part interlocked to open and close the bolt cover while being interlocked by the wire member when the safety ring is raised. Device. The method according to claim 1 or 2,
The interlocking portion is provided with a tube-shaped closing member closed at one end and the first and second ends, and inserted into the closing member and movable in the longitudinal direction, and having first and second locking holes at one end and the other end. A wire member which is a wire,
The second closure is supported by a fixed body portion fixed to the lower front of the pair of vertical frames installed in the gangform, the second locking hole is a gangform fall with a lock, characterized in that supported by the opposite end of the projection of the locking portion. Prevention device. The method of claim 3, wherein
At least one coupling groove is formed so that a finishing fixture fixing member is fixed to an upper front surface of the vertical frame so that a first finishing tool finishing one end of the finishing member of the interlocking portion is inserted into and fixed to an end of the finishing fixture fixing member.
At least one first coupling groove is formed between an upper end of the vertical frame so that a first locking hole provided at one end of the wire of the interlocking part is formed at an end of the lifting member so as to correspond to the coupling groove. Gang foam fall prevention device having a lock, characterized in that the. The method of claim 3, wherein
The gangform fall prevention device having a locking portion, characterized in that the other end is bent in an arc shape between the vertical frame is supported on the fixed body portion. The method according to claim 1 or 2,
The bolt cover part is installed in the height direction at the upper end direction of the fixed body portion rotatably installed, the bolt cover block the space with the fixed body portion during the non-rotation of the bolt cover portion, when the bolt cover portion rotates Gang form fall prevention device having a lock portion characterized in that the space blocking member for limiting the rotation angle of the bolt cover portion is provided. The method according to claim 1 or 2,
The bolt cover portion and the locking portion is rotated by the first and second rotation shafts, the gangform fall prevention device having a lock portion, characterized in that is carried by the torsion spring inserted into the first and second rotation shafts, respectively.

Images