JP2753471B2 - Installation method of circular oil interceptor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for installing a circular oil block in a slab of a building.

[0002]

2. Description of the Related Art Conventionally, since an oil interceptor has a rectangular shape, an installation hole of a shape corresponding to the slab is previously formed by installing a formwork before constructing a slab. It must be formed and an oil interceptor must be installed in this mounting hole. Therefore, the installation work is troublesome and inefficient, and once the installation hole is formed, the position,
There is a problem that the direction and shape cannot be changed.

[0003] In order to solve such a problem,
The applicant of the present application has proposed a circular oil collector as disclosed in Japanese Patent Application No. 6-240225. This circular oil interceptor solves the problems of the conventional rectangular oil interceptor, and can be installed in the installation hole formed in the slab of the built building, and changes its installation position, direction and shape It has the advantage that it can be.

[0004]

SUMMARY OF THE INVENTION Circular oil interceptors are:
It has the above-mentioned advantages, and it is expected that such a device can be installed efficiently and safely. However, an installation technology that can meet the demand has not yet been developed. Therefore, the inventor of the present invention has conducted various studies for the purpose of developing an installation method capable of meeting such expectations, and has completed the present invention.

Accordingly, an object of the present invention is to provide a circular oil block which can be installed in an installation hole formed in a slab of a building which has been constructed as described above and whose installation position, direction and shape can be changed. It is an object of the present invention to provide a method of installing a circular oil interceptor that can efficiently and safely install a vessel on a slab of a built building.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method of installing a circular oil interceptor. A drop prevention plate having a larger area than the circular hole is installed on the lower surface of the circular hole where the circular oil interceptor is installed, and the slab including the reinforcement is provided by the core boring machine arranged on the upper surface of the slab. To form a circular hole, and after the formation of the circular hole, the core slab is once supported by a fall prevention plate and removed from the circular hole, and then the fall prevention plate is removed and a circular oil block is inserted into the circular hole. And fixing the circular oil interceptor to a slab.

According to a second aspect of the present invention, after a circular hole is cut and formed by a core boring machine, a hanging tool is attached to a core slab supported by a fall prevention plate, and a crane installed outside through the hanging tool. The core slab is taken out of the circular hole.

According to the third aspect of the present invention, the drainage pipe is connected to the fall prevention plate, and when the slab is cut by the core boring machine, water injected into the core boring machine is discharged from the drainage pipe. It is characterized by the following.

According to a fourth aspect of the present invention, the fall prevention plate is
A gap is formed between the slab and the back surface of the slab along the outer peripheral portion of the circular hole via a packing material that comes into contact with the slab.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A core boring machine 1 used for carrying out the installation method of the present invention is as shown in FIG. 1 and has a support column 4 erected on a movable support base 3 having movable wheels 2. The support beam 7 is provided so as to move up and down via a vertical movement mechanism (not shown) by operation of the handle 6, and a cylindrical cutting member which is rotated by a driving member 8 attached to the support beam 7. 9 is attached vertically, and a cutter 11 is attached to the outer peripheral edge of the lower end of the cutting member 9.

Using the core boring machine 1 as described above, the cylindrical body 16 of the circular oil block shown in FIG.
When the circular hole 17 for installing the circular hole 17 is formed by cutting the portion of the slab 15 of the constructed building, as shown in FIG. 2, the circular hole 17 is formed on the lower surface of the slab 15 where the circular hole 17 is formed. The drop prevention plate 18 having a larger area and connected to the drain pipe 19 is formed along the outer periphery of the circular portion through the packing material 21 abutting on the same to form a gap of approximately 10 mm, and the bolt 20 is used. Attach.

Next, as shown in FIG. 3, the core boring machine 1 is moved to a position above the portion where the circular hole 17 is to be formed by the moving support base 3, and the driving member 8 is driven to rotate the cutting member 9 to rotate. By operating the handle 6, the cutting member 9 is moved downward, and the slab 15 is cut into a circle including the reinforcing bars by the cutter 11 attached to the outer peripheral edge of the lower end. At this time, the cutting member 9 is cooled by discharging water to a cutting portion by a water discharge pipe (not shown), and the cooling water is discharged to the outside by a drain pipe 19.

The core slab 23 cut in this way is
Is dropped on the fall prevention plate 18 as shown in FIG. Therefore, a hanging tool 22 made of eyebolts is attached to the core slab 23, and the core slab 23 is taken out of the circular hole 17 by a crane (not shown) installed outside via the hanging tool 22, and then the fall prevention plate 18 is removed. Remove.

Next, as shown in FIG. 5, a cylindrical main body 16 of a circular oil interceptor is fitted into a circular hole 17 so as to face an optimum direction, and the cylindrical main body 16 is fixed to the slab 15 by an anchor bolt or the like. Thereafter, a water collecting pipe, a drain pipe, a water collecting cup, a filtering member and the like (not shown) are mounted on the cylindrical main body 16 and used as an oil interceptor.

[0015]

As described above, the present invention relates to a method for installing a circular oil interceptor, and the invention according to claim 1 is a method for installing a circular oil interceptor for a slab of a built building. On the lower surface of the hole portion, a fall prevention plate having an area larger than the circular hole is installed, and the core hole boring machine arranged on the upper surface of the slab cuts the slab including the reinforcing bar to form a circular hole. After the formation of this circular hole, the core slab is once supported by a fall prevention plate and removed from the circular hole, after which the fall prevention plate is removed and a circular oil block is inserted into the circular hole, and the circular oil block is attached to the slab. As it takes root, a circular oil blocker will be installed on the slab of the built building,
There is an effect that it can be installed efficiently and safely so that its installation position, direction and shape can be changed.

According to a second aspect of the present invention, after a circular hole is cut and formed by a core boring machine, a hanging tool is attached to a core slab supported by a fall prevention plate, and a crane installed outside through the hanging tool. Since the core slab is taken out of the circular hole, in the final step of the process, the cut slab piece does not fall and hinder the operation of the worker thereunder, and the falling core slab does not damage the lower structure. In addition, there is an effect that the work of removing the core slab is facilitated.

According to a fourth aspect of the present invention, a drainage pipe is connected to the fall prevention plate, and water injected into the core boring machine is discharged from the drainage pipe when the slab is cut by the core boring machine. Therefore, there is an effect that the cutting member of the core boring machine is cooled by pouring water to prevent the wear due to the heat.

According to a fourth aspect of the present invention, the fall prevention plate comprises:
A gap is formed along the outer circumference of the circular hole between the back surface of the slab and the packing material that comes into contact with the outer periphery of the circular hole, so that cooling water used during cutting leaks to the outside. In addition to maintaining good working environment, there is an effect that the cutter of the cutting member of the core boring machine does not contact the fall prevention plate and does not damage them in the final process at the time of cutting. is there.

[Brief description of the drawings]

FIG. 1 is a perspective view of a core boring machine used for carrying out the present invention.

FIG. 2 is an explanatory view of a first embodiment of the present invention.

FIG. 3 is an explanatory view of a second embodiment step of the above.

FIG. 4 is an explanatory view of a third embodiment step of the above.

FIG. 5 is an explanatory view of a fourth embodiment of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Core boring machine 2 Moving wheel 3 Moving support stand 4 Support column 6 Handle 7 Support beam 8 Drive member 9 Cutting member 11 Cutter 15 Slab 16 Cylindrical body 17 Circular hole 18 Fall prevention plate 19 Drain pipe 21 Packing material 22 Hanging tool 23 Core slab

Claims (4)

(57) [Claims] 1. A core provided on an upper surface of a slab of a slab of a constructed building, wherein a fall prevention plate having a larger area than the circular hole is installed on a lower surface of a circular hole where the circular oil blocker of the slab of the constructed building is installed. The boring machine cuts the slab, including the reinforcing bars, to form a circular hole.After the formation of this circular hole, the core slab is once supported with a fall prevention plate, removed from the circular hole, and then the fall prevention plate is removed. A method of installing a circular oil block, wherein a circular oil block is inserted into the circular hole and the circular oil block is fixed to a slab. 2. After the circular hole is cut and formed by the core boring machine, a hanging tool is attached to the core slab supported by the fall prevention plate, and the core slab is moved outside the circular hole by a crane installed outside through the hanging tool. The method for installing a circular oil blocker according to claim 1, wherein the circular oil blocker is taken out. 3. A drain pipe is connected to the fall prevention plate, and when the slab is cut by the core boring machine,
3. The method according to claim 1, wherein water injected into the core boring machine is discharged from the drain pipe. 4. The fall prevention plate is provided with a gap formed between the back surface of the slab and the outer periphery of the circular hole portion through a packing material that abuts the circular hole portion. Item 4. A method for installing a circular oil interceptor according to any one of Items 1 to 3.