Concrete pouring device and concrete pouring method

Abstract

To provide a concrete placing device which dispenses with special working on a floor surface, and can simply perform climbing work.SOLUTION: A concrete placing device 1 for placing concrete onto a floor surface of a building 100 having a plurality of stories includes a trestle 2 that is formed into such a shape as to pass an opening formed on the floor surface of the building and is fixed to the floor surface, a mast 10 that is formed into such a diameter as to pass the opening and has a base end fixed to the trestle, a plurality of arms 21 to 24 provided so as to be rotatably continuous in a vertical direction freely bent and developed, a boom 20 turnably provided in a horizontal direction on the upper end of the mast, and a concrete pipe 30 which is arranged along the boom and has a discharge port suspended from a tip of the boom.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a concrete pouring device and a concrete pouring method for pouring concrete onto a floor surface of a building having multiple floors. [Background technology]

[0002] In the construction of a high-rise building, for example, concrete is poured to construct a floor surface on the top floor during construction. As a concrete pouring device for pouring concrete into a building under construction, for example, the concrete pouring device described in Patent Document 1 or Patent Document 2 is known.

[0003] The concrete pouring device, for example, comprises a mast whose base end is fixed to an installation surface, a rotatable boom provided at the upper end of the mast, and a concrete pipe arranged along the boom. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 61-196069 [Patent Document 2] JP 2010-013880 A Summary of the Invention [Problem to be solved by the invention]

[0005] The concrete pouring device described in Patent Document 1 utilizes an existing crane device, and after a new floor is constructed, it is necessary to secure workers who are familiar with the climbing work of extending the mast upward.

[0006] The concrete pouring device described in Patent Document 2 requires the creation of a special hole (a so-called "drill hole") in the floor surface when the base end of the mast is installed on the floor surface, and a process for sealing the hole is required, which may reduce workability. In addition, it is necessary to secure workers who are familiar with the work involved in climbing work.

[0007] An object of the present invention is to provide a concrete pouring device that does not require special processing of the floor surface and allows climbing operations to be performed easily. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention provides a concrete pouring device for pouring concrete onto a floor surface of a building having multiple floors, the concrete pouring device comprising: a platform fixed onto the floor surface; The floor surface of the building A mast having a diameter that allows it to pass through the opening and a base end fixed to the base, and a plurality of arms that are connected to the base in a rotatable manner in the vertical direction and are provided so as to be freely foldable and unfoldable. Consists of This concrete pouring device is characterized by comprising a boom that is freely rotatable laterally at the upper end of the mast, and a concrete pipe having a discharge outlet arranged along the boom and hanging down from the tip of the boom.

[0009] According to the present invention, the platform and mast are formed in a shape that allows them to pass through an opening formed in the floor surface, so that when performing climbing work to move the equipment to the floor surface of an upper floor, the equipment can be lifted upward by a crane device and moved.

[0010] The stand of the present invention may be configured to have legs formed in a shape that allows them to pass through the opening, and a plurality of outriggers that are stored in the legs and are deployed to span the opening and fixed to the floor surface.

[0011] According to the present invention, after the platform passes through an opening during climbing work, the outriggers can be deployed so that the platform can be placed on the floor surface across the opening.

[0012] The outrigger of the present invention may be provided with an angle adjustment portion that fixes it in an deployed state at a predetermined angle with respect to the leg portion when viewed from the vertical direction.

[0013] According to the present invention, the angle of the outriggers can be changed depending on the state of the object to be installed on the floor surface and the platform can be installed on the floor surface.

[0018] The present invention comprises multiple floors building A method for pouring concrete on a floor surface comprising the steps of: The above On the floor Fixed A stand and the Formed on the floor of the building A mast having a diameter that allows it to pass through the opening and a base end fixed to the base, and a plurality of arms that are connected to the base in a rotatable manner in the vertical direction and are provided so as to be freely foldable and unfoldable. Consists of This concrete pouring method is characterized by comprising the steps of: installing the base of a concrete pouring device comprising a boom attached to the upper end of the mast so as to be freely rotatable laterally, and a concrete pipe arranged on the boom and having a discharge outlet hanging down from the tip of the boom, on the floor surface above the opening; and pouring concrete using the concrete pouring device onto a floor surface constructed above the floor surface before concrete is poured.

[0019] According to the present invention, the boom can be moved to any position horizontally, so that concrete can be poured at any location on the floor surface to be constructed in a building under construction having multiple floors.

[0020] The present invention may include the steps of removing the platform from the floor surface, suspending the concrete pouring device by a crane device and moving it upward, and passing the mast and the platform through another opening formed in another floor surface adjacent to and above the floor surface, and installing the platform on the other opening on the other floor surface.

[0021] According to the present invention, the platform and mast are formed in a shape that allows them to pass through an opening formed in the floor surface, so that when performing climbing work to move the equipment to the floor surface of an upper floor, the equipment can be lifted upward by a crane device and moved. Effect of the Invention

[0022] According to the present invention, special processing of the floor surface is not required, and climbing work can be easily performed. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a diagram showing the configuration of a building and a concrete pouring device according to an embodiment. [Diagram 2] FIG. 4 is a plan cross-sectional view showing a state in which the outriggers are deployed from the base. [Diagram 3] 5A and 5B are diagrams illustrating a configuration of an angle adjustment unit of the outrigger. [Figure 4] FIG. 2 is a side view showing the configuration of a concrete pouring device. [Diagram 5] FIG. 2 is a plan view showing the configuration of a concrete pouring device. [Figure 6] FIG. 13 is a diagram illustrating a boom in a folded state. [Figure 7] FIG. 2 is a plan view showing the installation state of the stand. [Figure 8] 1A to 1C are diagrams showing steps of a concrete pouring method. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an embodiment of a concrete pouring device according to the present invention will be described with reference to the drawings. The concrete pouring device pours concrete onto a floor surface of a multi-story building or the like under construction.

[0025] 1, a building 100 under construction, which is the target of the installation of the concrete pouring device 1, has multiple floors. The building 100 has floor surfaces YN-2, YN-1 (N is a natural number) on each floor where concrete has already been poured and floor slab surfaces have been formed, and another floor surface YN on the top floor under construction before concrete is poured.

[0026] In a portion of the floor surface YN-2, for example, a rectangular opening HN-2 is formed which penetrates when viewed vertically. The opening HN-2 is, for example, a hoistway for an emergency elevator. In the floor surface YN-1 adjacent to and above the floor surface YN-2, an opening HN-1 having substantially the same shape as the opening HN-2 is formed concentrically with the opening HN-2 when viewed vertically.

[0027] Floor surface YN is constructed adjacent to and above floor surface YN-1. Concrete has not been poured on floor surface YN, but reinforcing bars are arranged between beams to form a floor slab surface, and formwork is fixed. On floor surface YN-2, opening HN' is formed by arranging reinforcement to form opening HN of approximately the same shape as opening HN-1, concentric with opening HN-1 when viewed from the vertical direction.

[0028] A concrete pouring device 1 is fixed to the floor surface YN-2. The concrete pouring device 1 is fixed to the floor surface YN-2, which is two steps lower than the floor surface YN onto which the concrete is to be poured. The concrete pouring device 1 is configured to be lighter and simpler than a device for constructing the mast 10 from the ground surface.

[0029] The concrete pouring device 1 comprises a stand 2 installed above an opening HN-2 on floor surface YN-2, a mast 10 having its base end fixed to the stand 2, a boom 20 mounted at the upper end of the mast 10 so as to be freely rotatable laterally, and a concrete pipe 30 arranged along the boom 20.

[0030] The mount 2 is fixed to a floor surface YN-2 on which concrete has been poured to form a floor slab surface. The mount 2 is fixed to the floor surface YN-2 on which a longer time has passed since concrete was poured compared to the floor surface YN-1, and the strength of the floor surface YN-2 is therefore higher than that of the floor surface YN-1. The mount 2 is formed, for example, in a shape that allows it to pass through an opening HM (M is a natural number from 1 to N).

[0031] 2 and 3, the mount 2 includes legs 3 formed in a shape that allows it to pass through the opening HM, for example. The legs 3 are formed in a shape that fits into a rectangle so as to pass through the opening HM when viewed in the vertical direction. The legs 3 are formed, for example, of X-shaped legs 3 that protrude at 45 degrees from the four corners of the mast 10 when viewed in the vertical direction. The legs 3 are formed, for example, of H-shaped steel.

[0032] The leg 3 includes a pair of rectangular flange plates 3A facing each other in the vertical direction, and a web 3B provided between the pair of flange plates 3A. The web 3B stands upright between the pair of flange plates 3A. A first side surface and a second side surface facing the first side surface of the leg 3 are connected and reinforced by a pair of connecting members 3D. The connecting members 3D are formed of, for example, H-shaped steel.

[0033] A third side surface of the leg portion 3 perpendicular to the first side surface and a fourth side surface opposite the third side surface are open. A plurality of outriggers 4 are stored on the third and fourth side surfaces of the leg portion 3. The outriggers 4 are rotatably attached to the tip of the connecting member 3D. On the third side surface of the leg portion 3, a pair of outriggers 4 are formed so as to be stored opposite the third side surface. On the fourth side surface of the leg portion 3, a pair of outriggers 4 are formed so as to be stored opposite the fourth side surface. In this way, the outriggers 4 are provided in the leg portion 3 so as to be freely stored and deployed.

[0034] The outrigger 4 is formed, for example, in the shape of a rod elongated in the horizontal direction. The outrigger 4 is formed, for example, from an H-shaped steel. For example, the base end of the outrigger 4 is supported between a pair of flange plates 3A so as to be freely rotatable with the vertical direction as the rotation axis. For example, a shaft 3S is provided as the rotation axis. The shaft 3S is provided along the vertical direction between the pair of flange plates 3A. The outrigger 4 is stored, for example, between one side of the pair of flange plates 3A. The outrigger 4 is formed to a length that does not pass through the opening HM when deployed.

[0035] The multiple outriggers 4 are deployed to straddle the opening HM and are fixed to the floor surface YM. For example, if the state in which the outriggers 4 are stored in the legs 3 is set to 0 degrees depending on the state of the installation target portion of the floor surface YN-2, the outriggers 4 are deployed at a predetermined angle such as 90 degrees, 135 degrees, 180 degrees, etc. rotated in a predetermined direction from 0 degrees. The outriggers 4 may be deployed at any angle other than the predetermined angle.

[0036] The outrigger 4 includes an angle adjustment unit X that fixes the outrigger 4 in an expanded state at a preset angle relative to the leg when viewed vertically. The angle adjustment unit X includes, for example, a first pin hole 3P formed on the leg 3 side, and a second pin hole 4P formed in the outrigger 4 at a position corresponding to the position of the first pin hole 3P at the preset angle.

[0037] The first pin hole 3P is formed, for example, at the tip of the connecting member 3D. The first pin hole 3P is formed at a predetermined position concentrically extending outwardly with the shaft 3S, which is the center of rotation and is formed in the connecting member 3D. The outrigger 4 is formed with a through hole 4H through which the shaft 3S is inserted.

[0038] A plurality of second pin holes 4P are formed at predetermined positions concentrically outward from the through hole 4H. For example, assuming that the outrigger 4 is stored at 0 degrees, the second pin holes 4P are formed corresponding to the position of the first pin hole 3P at 0 degrees. The other second pin holes 4P are formed corresponding to the positions of the first pin hole 3P at predetermined angles of 90 degrees, 135 degrees, and 180 degrees when the outrigger 4 is deployed. A pin P is inserted into the first pin hole 3P and the second pin hole 4P at a predetermined angle, and the outrigger 4 is fixed at the predetermined angle. An extension member is appropriately connected to the tip of the outrigger 4 as described later.

[0039] That is, the multiple second pin holes 4P are formed so as to be fixed by pins P at predetermined angles of 0 degrees, 90 degrees, 135 degrees, and 180 degrees around the through hole 4H. With the multiple outriggers 4 fixed to the floor surface YM, the frame 2 is formed so as to have the strength to support loads applied to the base end of the mast 10 in all directions.

[0040] The mast 10 is formed, for example, in a truss structure with a rectangular cross section. The mast 10 may be formed of steel pipes other than the truss structure. The mast 10 is formed, for example, by assembling steel frames formed in an L-section or a band shape. This makes the mast 10 lightweight. The cross section of the mast 10 is formed to a diameter that can pass through the opening HM. The mast 10 is formed at a height that exceeds the floor surface YN-2 in the vertical direction from the floor surface YN. That is, the tip of the mast 10 protrudes upward from the floor surface YN. A boom 20 is provided at the tip of the mast 10. In general, the mast of a climbing type concrete pouring device has a structure that is supported at two points, the floor surface of a floor below the floor surface of the construction floor and the floor surface below that, and is not supported by a single floor surface. In contrast, the mast 10 of the concrete pouring device 1 is supported only by the floor surface YN-2 of the installation floor by the outriggers 4. According to the concrete pouring device 1, it is only necessary to apply reinforcement for installation to one floor, which simplifies replacement work and significantly shortens the construction period.

[0041] As shown in Figures 4 and 5, the boom 20 has a plurality of arms 21-24 that are provided so as to be freely foldable and unfoldable. The plurality of arms 21-24 are connected so as to be freely rotatable in the vertical direction. For example, a boom provided on an existing concrete pump vehicle may be used as the boom 20. For example, the base end of the arm 21 is connected to the tip of the mast 10. For example, the base end of the arm 21 is attached to the mast 10 so as to be freely rotatable around a vertical axis. For example, the arm 21 rotates around a vertical rotation axis L1 using a motor (not shown) as a drive source.

[0042] The arm 21 has a base end attached to the tip of the mast 10 so as to be rotatable vertically. The base end of the arm 21 is provided with, for example, an actuator 21A that rotates the arm 21 up and down. The actuator 21A includes, for example, a telescopic hydraulic piston and cylinder. The base end of the actuator 21A is connected to the tip side of the mast 10, and the tip is connected to the base end side of the arm 21. The arm 21 rotates so as to stand upright upward as the actuator 21A extends from a state in which the arm 21 is bent horizontally around a horizontal rotation axis L2. The base end of an arm 22 is connected to the tip of the arm 21 so as to be rotatable vertically.

[0043] An actuator 22A that rotates the arm 22 up and down is provided at the base end of the arm 22, for example. The actuator 22A includes, for example, a telescopic hydraulic piston and a cylinder. The base end of the actuator 22A is connected to the tip side of the arm 21, and the tip is connected to the base end side of the arm 22. The actuator 22A rotates the arm 22 around a horizontal rotation axis L3.

[0044] Arm 22 rotates so as to bend downward relative to arm 21. Arm 22 can rotate from a state in which arm 21 stands upright upward to a state in which arm 22 is folded downward as actuator 22A contracts. The base end of arm 23 is connected to the tip of arm 22 so as to be rotatable vertically.

[0045] An actuator 23A that rotates the arm 23 up and down is provided at the base end of the arm 23, for example. The actuator 23A includes, for example, a telescopic hydraulic piston and a cylinder. The base end of the actuator 23A is connected to the tip side of the arm 22, and the tip is connected to the base end side of the arm 23. The actuator 23A rotates the arm 23 around a horizontal rotation axis L4.

[0046] Arm 23 rotates so as to bend upward relative to arm 22. Arm 23 can rotate from a state in which arm 22 hangs downward to a state in which it is folded upward by extension of actuator 23A. The base end of arm 24 is connected to the tip of arm 23 so as to be rotatable vertically.

[0047] An actuator 24A that rotates the arm 24 up and down is provided at the base end of the arm 24, for example. The actuator 24A includes, for example, a telescopic hydraulic piston and a cylinder. The base end of the actuator 24A is connected to the tip side of the arm 23, and the tip is connected to the base end side of the arm 24. The actuator 24A rotates the arm 24 around a horizontal rotation axis L5.

[0048] Arm 24 rotates so as to bend downward relative to arm 23. Arm 24 can rotate from a state in which arm 23 stands upright upward to a state in which arm 24 is folded downward as actuator 24A contracts. The number of arms in boom 20 is not limited to the above and may be increased or decreased as appropriate.

[0049] With the above configuration, the boom 20 can be held in a state where it is extended to the maximum in the horizontal direction, and the arms 21-24 can be folded to adjust the horizontal distance, and can also be folded up to a direction along the vertical direction. A concrete pipe 30 is laid on the boom 20 along each arm 21-24.

[0050] The concrete pipe 30 is formed of, for example, a metal pipe. The concrete pipe 30 has, for example, a first pipe 31 attached along one side surface of the arm 21. The base end of the first pipe 31 is bent along the direction of the rotation axis L2 and is attached so as to be rotatable around the rotation axis L2.

[0051] The base end side of the first pipe 31 is connected to, for example, a mast pipe 11 laid along the mast 10. The mast pipe 11 is connected to, for example, a concrete pipe (not shown) pumped by a concrete pump truck (not shown) or the like. The tip side of the first pipe 31 is bent along the direction of the rotation axis L3 and penetrates to the other side of the arm 21 and is attached so as to be rotatable around the rotation axis L3. The tip side of the first pipe 31 is connected to the base end side of the second pipe 32.

[0052] The second pipe 32 is attached, for example, to the other side surface of the arm 22. The base end of the second pipe 32 is bent along the direction of the rotation axis L3 and is attached so as to be rotatable about the rotation axis L3. The tip side of the second pipe 32 is bent along the direction of the rotation axis L4 and passes through to one side surface of the arm 23 and is attached so as to be rotatable about the rotation axis L4. The tip side of the second pipe 32 is connected to the base end side of the third pipe 33.

[0053] The third pipe 33 is attached, for example, to one side surface of the arm 23. The base end of the third pipe 33 is bent along the direction of the rotation axis L4 and is attached so as to be rotatable about the rotation axis L4. The tip side of the third pipe 33 is bent along the direction of the rotation axis L5 and is attached so as to be rotatable about the rotation axis L4. The tip side of the third pipe 33 is connected to the base end side of the fourth pipe 34.

[0054] The fourth pipe 34 is attached, for example, to one side surface of the arm 24. The base end of the fourth pipe 34 is bent along the direction of the rotation axis L5 and is attached so as to be rotatable about the rotation axis L5. A fifth pipe 35 (see FIG. 1) having a discharge port is suspended and connected to the tip side of the fourth pipe 34. The concrete pipe 30 allows concrete pumped through the mast pipe 11 to be poured onto the floor surface YN.

[0055] Next, a concrete pouring method for pouring concrete onto the floor surface of a building having multiple floors will be described.

[0056] As described above, in the building 100 under construction, a plurality of openings HM (M=1 to N) are formed through a plurality of floor surfaces YM for elevator hoistways (see FIG. 1). The frame 2 is installed in an opening HN-2 in a floor surface YN-2 of a floor two steps below the floor surface YN to which concrete is to be poured. The frame 2 may be installed on the floor surface YN, a floor surface YN-1 one step below the floor surface YN, or a floor surface below the floor surface YN-2, depending on the construction site. Four outriggers 4 are deployed from the legs 3 of the frame 2 so as to straddle the openings HN-2. The outriggers 4 are fixed, for example, to beams constituting the floor surface YM. The frame 2 is installed above the opening HN-2 in the floor surface YN-2.

[0057] As shown in Fig. 7, the outriggers 4 are fixed to the main girder B1 on the floor surface, for example. If the outriggers 4 do not reach the main girder B1, they may be extended by extension members 4J and fixed to the main girder B1. If the outriggers 4 do not reach the main girder B1, they may be fixed to the sub-girders B2. The outriggers 4 are deployed and fixed at a predetermined angle as appropriate depending on the positions of the main girder B1 and the sub-girders B2. As a result, compared to the conventional concrete pouring device, which requires a complex combination of earth retaining steel materials for reinforcement, the concrete pouring device 1 allows for easy reinforcement of the structure during installation and can be implemented at low cost.

[0058] As shown in Fig. 8(1), a floor surface YN before concrete is poured is constructed above a floor surface YN-1. The floor surface YN is constructed by forming an opening HN' (see Fig. 1) before concrete is poured around the mast 10. Next, concrete is poured by the concrete pouring device 1 onto the floor surface YN before concrete is poured, which is constructed above the floor surface YN-1.

[0059] Concrete is poured onto the floor surface YN. The concrete pouring device 1 can pour concrete onto the entire upper surface of the floor surface YN by adjusting the horizontal folding amount of the boom 20. At this time, a formwork (not shown) is attached to the opening HN' around the mast 10, and concrete is poured to form the opening HN.

[0060] As shown in FIG. 8(2), when pouring of concrete onto floor surface YN is completed, the boom 20 of the concrete pouring device 1 is folded. A wire W is hung on the mast 10 and tensioned upward by a crane device (not shown). The concrete pipe 30 is separated from the base end of the mast 10. At this time, for example, a valve (not shown) for preventing concrete from flowing out is closed at the cut portion of the concrete pipe 30 to prevent concrete from flowing out from inside the concrete pipe 30. If there is an excess length of the concrete pipe (not shown) below the mast 10, the concrete pipe 30 does not necessarily have to be separated.

[0061] After that, the multiple outriggers 4 are removed from floor surface YN-2. Then, the multiple outriggers 4 are stored in the legs 3. As a result, the frame 2 is removed from floor surface YN-2. The mast 10 is lifted upward by the crane equipment. The concrete pouring device 1 is suspended by the crane equipment and moved upward. The mast 10 passes through the opening HN-1. The frame 2 passes through another opening HN-1 on another floor surface YN-1. When the frame 2 reaches a height position above the other opening HN-1, the lifting of the crane equipment is stopped.

[0062] As shown in Fig. 8 (3), multiple outriggers 4 are deployed from the legs 3 of the frame 2 and fixed to the floor surface YN-1. As a result, the frame 2 is installed above another opening HN-1 on another floor surface YN-1. Then, a concrete pipe 30 is connected to the base end of the mast 10. Then, a floor surface YN+1 before concrete is poured is constructed above the floor surface YN. The above process is then repeated to construct a building 100 having multiple floor surfaces.

[0063] As described above, the concrete pouring device 1 allows concrete pouring work to be carried out by a small number of people, and in particular can greatly simplify the work of installing and removing the concrete pipe 30 when moving the concrete pouring device 1 to an upper floor surface. The concrete pouring device 1 greatly simplifies the labor involved in installing and removing the concrete pipe 30, and can perform continuous pouring of concrete, thereby shortening the work time and greatly shortening the overall construction period.

[0064] Conventionally, when the concrete strength differed between beams, columns (joints), and floors, concrete was poured by piping at each target location. However, with the concrete pouring device 1, concrete can be poured at any location on the floor surface simply by changing the type of concrete to be poured.

[0065] The concrete pouring device 1 allows concrete to be poured in a short time on walls and pillars, where previously concrete was poured using a crane and a bucket. With the concrete pouring device 1, the outriggers 4 are stored in the stand 2, simplifying the work of moving to the floor above and significantly shortening the work time for re-piling. With the concrete pouring device 1, climbing work that previously required about half a day using hydraulic cylinders or the like can be significantly shortened to about 30 minutes.

[0066] Conventionally, a hole (a hole for blocking) dedicated to the concrete pouring device was constructed in the floor surface, and the dedicated hole had to be blocked in the later construction. However, the concrete pouring device 1 utilizes the opening HM formed for the elevator hoistway, eliminating the need to construct a dedicated hole and significantly shortening the construction period. The concrete pouring device 1 increases the amount of concrete poured per day, and can significantly reduce the number of concrete pump trucks installed on-site. The concrete pouring device 1 can significantly reduce the number of times concrete is poured, and can also significantly reduce the amount of unused, remaining concrete.

[0067] Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and can be appropriately modified within the scope of the present invention. For example, concrete may be poured by suspending a concrete hopper at the tip of the boom 20, instead of pumping concrete through the concrete pipe 30. The opening in which the concrete pouring device is installed may be any opening in the site, such as a stairwell that penetrates the floor surface, as well as an elevator shaft for an emergency elevator. The opening may be closed. The platform 2 may be installed not only on the floor surface YN-2 of the floor two steps below the floor surface YN where the concrete is poured, but also on the floor surface YN and the floor surface of a floor below the floor surface YN according to the construction site. [Explanation of symbols]

[0068] 1 concrete pouring device, 2 frame, 3 leg, 3A flange plate, 3B web, 3D connecting member, 3P first pin hole, 3S shaft, 4 outrigger, 4H through hole, 4J extension member, 4P second pin hole, 10 mast, 11 mast pipe, 20 boom, 21-24 arm, 21A-24A actuator, 30 concrete pipe, 31 first pipe, 32 second pipe, 33 third pipe, 34 fourth pipe, 35 fifth pipe, 100 building, B1 main girder, B2 small girder, HN opening, L1-L5 rotation axis, P pin, W wire, X angle adjustment part, YN floor surface

Claims

1. A concrete pouring device for pouring concrete onto a floor surface of a building having multiple floors, A stand fixed on the floor surface; a mast having a base end fixed to the frame; A boom is provided at the upper end of the mast so as to be rotatable in the lateral direction and is composed of a plurality of arms that are connected in a rotatable manner in the vertical direction and are provided so as to be foldable and unfoldable. a concrete pipe having a discharge port disposed along the boom and hanging down from a tip of the boom, A concrete pouring device, characterized in that the platform has legs and a plurality of outriggers that are stored in the legs and fixed to the floor surface.

2. The outrigger includes an angle adjustment unit that fixes the outrigger in a deployed state at a predetermined angle with respect to the leg when viewed in the vertical direction.

2. A concrete pouring device according to claim 1.

3. A method for pouring concrete on a floor surface of a building having multiple floors, comprising the steps of: a step of installing the platform of a concrete pouring device comprising: a platform fixed to the floor surface; a mast having a base end fixed to the platform; a boom comprising a plurality of arms connected to be rotatable vertically and foldable and unfoldable, the boom being provided at the upper end of the mast so as to be rotatable horizontally; and a concrete pipe having a discharge port disposed on the boom and hanging down from the tip of the boom, on an opening formed in the floor surface; and pouring concrete into a floor surface before concrete pouring, the floor surface being constructed above the floor surface, by the concrete pouring device. A concrete pouring method, characterized in that the platform has legs and a plurality of outriggers that are stored in the legs and fixed to the floor surface.

4. removing the platform from the floor surface; a step of suspending the concrete pouring device by a crane device and moving it upward, and passing the mast and the platform through another opening formed in another floor surface adjacent to the upper side of the floor surface; and installing the rack on the other floor surface above the other opening. The method of pouring concrete according to claim 3.

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