JP3300739B2 - Work floor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a large coal boiler,
The present invention relates to a work floor applied to a case where a powder storage tank and other large structures are constructed.

[0002]

2. Description of the Related Art Conventionally, for example, when constructing a large-sized coal boiler, a skilled high-place worker assembles a work floor by inserting a steel pipe or wood or the like into an inclined surface of a furnace bottom of a large-sized coal boiler.

[0003]

However, the conventional work floor as described above has disadvantages that it takes a lot of time to assemble and disassemble the work floor, and is not suitable for recent super-large boilers and the like.

[0004]

The work floor according to the present invention is intended to solve the above-mentioned problems, and is folded and formed so as to be able to be carried into a structure. A frame that is installed with the folding fulcrum and supports a downward load with a truss, and is folded and formed so that it can be carried into the structure, deployed in the structure, installed on the frame, and works in the lateral direction And a floor material forming a floor surface ,
The truss is pinned to the end of the horizontal
A beam in contact with the slope at the bottom of the structure and the frame
Pin fixed to the center of the horizontal section and the center of the horizontal section of the frame
A first truss member supporting the portion by the bottom of the structure;
The second supporting a quarter of the horizontal portion of the frame
And connecting the first and second truss members and
And a connecting member connected to the beam.
It is characterized by the following. That is, in the work floor according to the present invention, the frame that is folded and formed so as to be able to be carried into the structure is deployed in the structure and is installed with the central portion folded as a fulcrum, and a downward load is applied by the truss. The floor material that is supported and folded so that it can be carried into the structure is deployed in the structure and installed on the frame to form a horizontal work floor surface, substantially vertical direction The frame supporting the load and the floor material forming the substantially horizontal work floor are separated and foldable, so that installation and removal are easy, and the outer shape at the time of carrying in is reduced.

[0005]

1 to 4 are explanatory views of a work floor according to an embodiment of the present invention. In the figure, the work floor according to the present embodiment is used when constructing a large coal boiler, a powder storage tank, and other large structures, and is foldable as shown in FIGS. 1 and 2. 3 and a foldable floor material 21 and the like, and as shown in FIG.
The square trusses 9 and 10 are also formed so as to be foldable, and as shown in FIG. 4, the frame 3 supports a horizontal work floor formed by the floor material 21 so that the floor material 21 and the frame 3 Is characterized by the separation of

That is, reference numeral 1 in the drawing denotes an inclined surface of the furnace bottom,
Reference numeral 2 denotes a beam supporting the inclined surface 1, reference numeral 3 denotes a frame supporting the work floor surface, and reference numeral 4 denotes a state in which the folded frame is carried in, which can be carried in from a narrow boiler manhole below the furnace bottom. Has become. Reference numeral 5 denotes a state where the frame pulled up into the furnace is partially opened when the frame is installed on the furnace bottom. Reference numeral 6 denotes a wire used to open the folded frame 4, reference numeral 7 denotes a wire used for folding, opening, moving, etc. when retracting or installing the trusses 9, 10 supporting the entire frame 3, and reference numeral 8 denotes a furnace. 9 is a truss that supports the center of the horizontal part of the frame 3 by the lower part of the furnace bottom, 10 is a truss that supports a quarter of the horizontal part of the frame 3, and 11 is a truss 9, 10 is a connecting member connecting the beams 10 to each other. Reference numeral 12 denotes a folding fulcrum at the center of the horizontal portion of the frame 3, 13 denotes a folding fulcrum of the beam 8, and 14 denotes a fixed fulcrum of the truss 9, which is fixed by pins. Reference numeral 17 denotes a pulley, and the wire 7 connected to the upper end of the truss 10 is a pulley 17.
Through the center. Reference numeral 18 denotes an arm for fixing the wire 6 used to open the folded frame 4. The arm 18 is housed in the frame 3 when the wire 6 is not connected. Reference numeral 21 denotes a state in which the foldable floor material is horizontally opened, and is placed on the frame 3 as it is. 22 is the middle of opening the foldable flooring 21, 23 is a wire for a hanging point at the center of the frame 3, 24 is a wire hanging both ends of the flooring 21, 25 is a folded flooring,
Reference numeral 26 denotes an arm for opening the folded floor material 25, and the structure is adjusted so that it is not necessary when a commercially available scaffold made of a fabric frame steel is used as shown in the figure.

[0007] Reference numeral 27 denotes a pipe for fixing the floor material 21;
Reference numeral 28 denotes a hook to be mounted on a pipe 27. The pipe 27 and the hook 28 are designed so that a commercially available scaffold made of a cloth frame steel can be used for lease or the like without using the foldable floor material 21. I have. A foldable frame 3 is used at a place where the load is large, and a work floor that can withstand a high load is made by arranging the foldable flooring 21 at a place where the load is small. If the floor material 21 is used for a high load, a heavy object can be placed on the surface. Reference numeral 19 denotes a center folding fulcrum used for a narrow boiler, which is used for adjustment when the boiler width is different. Fifteen
Is a screw for adjusting when the angle of the inclined surface 1 of the furnace bottom is different, and pushes the pin 13 of the folding fulcrum 13 to adjust the angle.

As described above, the folding frame 3 and the folding floor material 21 are combined to form the folding frame 3.
A foldable flooring 21 is mounted thereon to form a working floor,
By separating the frame 3 and the floor material 21, the floor material 2
In the first example, a commercially available scaffold can be used. The frame 3 is folded and carried into the furnace.
This is done by pulling up the wire 7 connected to the tip of. When the setting is made wider, the wire 6 connected to the arm 18 is pulled up, or the wire 6 is fixed and the wire 7 is lowered. When the wire 7 is lowered, the truss 9.1
It is set to automatically spread to the bottom with a weight such as 0. In addition, a lightweight flooring 21 is provided between the frames 3.
There is no particular necessity for the frames 3 to face each other. When placing heavy objects, the work floor which can withstand a high load is formed by placing them on the frame 3 or arranging the frames 3 closely. You. The size of the boiler can be adjusted by increasing the number of frames 3 in the width direction of the work floor, and by attaching and detaching the folding fulcrum 12 in the length direction.

[0009] The conventional work floor has disadvantages such as extremely troublesome assembling and disassembly of the work floor, and it is not suitable for recent super-large boilers and the like. As a means for solving the problem, the frame 3 for supporting the load in the vertical direction and the floor material 21 forming the working floor in the horizontal direction are formed so as to be foldable and separable. Due to the separation, when folded, it becomes small and slender, and even the frame 3 for a super-large coal boiler can be carried in from a narrow boiler manhole. In addition, since the frame 3 and the flooring material 21 are separated from each other, it is not necessary to accurately perform the surface matching. Further, it is possible to cope with places where a high load is applied, for example, by arranging the frames 3 densely, and it is possible to adapt to both a high load and a light load. Further, as the floor material 21 forming the work floor surface, a commercially available or leased scaffold material can be used, so that the space of the storage place and the management cost thereof can be reduced. In addition, the force applied to the frame 3 in the lateral direction at the time of high load is eliminated by connecting the adjacent floor members 21 to each other. In addition, since the size and angle can be adjusted by providing a length adjusting portion at the center of the frame 3, the width of a structure used can be used for a boiler having a different size. wide. Also,
Frame 3 receiving load and floor material 21 forming work floor surface
By separating them from each other and making them foldable, installation becomes simple, and the cross-sectional area at the time of folding becomes small, so that the present invention can be applied to a large boiler or the like having a dimensional limit at the entrance.

[0010]

The work floor according to the present invention is constructed as described above, and the frame which is folded and formed so as to be able to be carried into the structure is expanded in the structure, and the central portion is provided with a folding fulcrum. is installed while the downward load is supported by truss, the
The truss is pinned to the end of the horizontal
A beam in contact with the slope at the bottom of the structure and the frame
Pin fixed to the center of the horizontal section and the center of the horizontal section of the frame
A first truss member supporting the portion by the bottom of the structure;
The second supporting a quarter of the horizontal portion of the frame
And connecting the first and second truss members and
And a connecting member connected to the beam.
In addition to the above, the floor material that is folded and formed so that it can be carried into the structure is deployed in the structure and installed on the frame to form a horizontal work floor surface By supporting the load in the substantially vertical direction with a truss and separating the frame that is installed with the center part folded as a fulcrum and the floor material that forms the work floor in the substantially horizontal direction, the installation and Since the removal is simple, no labor is required, and since the outer shape at the time of carrying in is reduced, it can be easily applied to a large structure having a limited size of the carrying-in entrance.

[Brief description of the drawings]

FIG. 1A is a sectional view of a work floor according to an embodiment of the present invention, and FIG. 1B is a plan view.

FIG. 2 is a detailed view of a main part thereof.

FIG. 3 is an explanatory diagram of its use.

FIG. 4 is also an explanatory view of its use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Furnace bottom inclined surface 2 Beam 3 Frame 4 Frame 5 Frame 6 Wire 7 Wire 8 Beam 9 Truss 10 Truss 11 Connecting member 12 Folding fulcrum 13 Folding fulcrum 14 Fixed fulcrum 15 Screw 17 Pulley 18 Arm 19 Folding fulcrum 21 Floor material 22 Floor Material 23 Wire 24 Wire 25 Floor material 26 Arm 27 Pipe 28 Hook

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 1/34 E04G 1/36

Claims (1)

(57) [Claims] 1. A frame that is folded and formed so as to be able to be carried into a structure, is deployed in the structure, is installed with a central portion being a fulcrum, and supports a downward load with a truss. and developed with carry-capable formed in the structure in the structure and a floor material to form a working floor of the transverse installed on the frame Te, the truss, the
Pinned to the end of the horizontal part of the frame and the bottom of the above structure
The beam in contact with the inclined surface of the
The center of the horizontal part of the frame is pin-fixed and the structure is
The first truss material supported by the bottom of the
A second truss member that supports a quarter of the horizontal portion;
Connecting the first and second truss members and connecting to the beam
A work floor , comprising: a connecting member having a connecting member .