JP3168559U - Precast concrete foundation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a precast concrete foundation suitable for installation of heavy equipment such as a gas engine power generation unit and a fuel cell unit. SOLUTION: A lower unit 3 is placed between both mounting holes on a soil concrete 9. When transporting the lower unit 3, the unit connecting metal fitting 4 can be suspended in both hands in a state of being temporarily fixed to the mounting hole of the lower unit 3 with bolts 4e. Next, the upper unit 2 is placed directly above the lower unit 3. When transporting the upper unit 2, it is possible to carry it with both hands by inserting a finger into the claw portion accommodating recess. After mounting the upper unit 2, the connecting metal fitting 4 and the foundation fixing metal fitting 5 are integrally bolted. After fixing the PC foundation, the device 8 is placed on the upper unit 2, and the device legs 8a are bolted to the upper unit 2 to complete the installation. [Selection diagram] FIG. 8

Description

  The present invention relates to a precast concrete foundation, and more particularly to a precast concrete foundation suitable for installation of heavy equipment such as a gas engine power generation unit and a fuel cell unit.

When installing heavy equipment for home use such as a gas engine power generation unit, it is necessary to install it on a concrete foundation, but with an integral type precast foundation, the weight is excessive, making it difficult to carry and install alone. It is not suitable for practical use. For this reason, conventionally, with respect to the installation foundation of heavy equipment, a construction method is generally used in which construction is performed on site or by a concrete foundation divided into a plurality of units.
The applicant of the present application is a flat-plate precast concrete foundation (hereinafter abbreviated as PC foundation as appropriate) for installing heavy equipment for consumer use. (Utility model registration document 1).

Utility Model Registration No. 3099019

According to the PC foundation of Literature 1, it is possible to perform an independent work, and it is possible to improve work efficiency and reduce installation costs.
The inventor of this application secures the advantages of the PC foundation according to Document 1, and in the case of the split type, it takes time to set the level for installation, and sound leakage from the gap in the connection surface occurs, resulting in noise problems. In order to solve the problems of installation and sound insulation, etc., the present invention has been completed.

The present invention is a technique for solving the above-described problems and has the following contents. That is, the precast concrete foundation according to the present invention is
(1) Precast concrete foundation for heavy equipment installation, a lower unit, an upper unit placed on the upper surface of the lower unit, and a pair of units for connecting and fixing the lower unit and the upper unit The upper unit includes an equipment mounting hole for fixing heavy equipment on the upper surface, and a claw receiving recess for hooking the unit connecting metal on both sides, and the lower unit is Connecting bracket mounting holes for fixing unit coupling brackets are provided on both sides, and the unit coupling bracket abuts against the claw part that latches on the lower surface of the claw part receiving recess of the upper unit and the side surfaces of the upper unit and the lower unit. And a unit fixing portion that is bolted to the connection fitting mounting hole, and is configured in an L shape.

(2) In the above (1), further comprising a foundation fixing bracket for installation on soil concrete, the foundation fixing bracket abutting above the unit fixing portion of the unit connecting bracket, It is characterized by comprising a connecting bracket fixing part bolted to the mounting hole and an earth fixing part bolted to the soil concrete, and configured in an L shape.

(3) Each said invention WHEREIN: The said nail | claw part accommodation recessed part of the said upper unit was comprised so that an operator could insert a finger and carry.

(4) In each of the above inventions, the lower unit holds the unit fixing portion or the soil fixing portion in a state where an operator temporarily fixes the unit connecting bracket or the base fixing bracket with a bolt during transportation. It is configured to be portable.

According to the present invention, the PC base, which is a heavy object, is divided into two units, and the unit fixing member and the mounting hole can be used as auxiliary tools during transportation or installation work. Can be improved and the installation cost can be reduced.
In addition, since the upper unit and the lower unit are installed in an overlapping manner, it is very easy to ensure horizontality, and it is possible to improve work efficiency and reduce installation costs.
In addition, since the gap does not occur between the upper and lower units, there is an effect that the sound insulation is improved.
In addition, the unit connection bracket and the foundation fixing bracket can be used in an appropriate combination, so that it can be used regardless of the installation location conditions (concrete soil, slab, soil, etc.).

It is a figure showing the whole precast concrete foundation 1 composition concerning a first embodiment. FIG. 3 is a diagram illustrating a configuration of an upper unit 2. FIG. 3 is a diagram illustrating a configuration of a lower unit 3. It is a figure which shows the structure of the unit connection metal fitting 4 and the foundation fixing metal fitting 5. FIG. It is a figure which shows the construction process of the precast concrete foundation. It is a figure which shows the aspect at the time of lower unit 3 conveyance. It is a figure which shows the aspect at the time of upper unit 2 conveyance. It is a figure which shows the apparatus installation state of the precast concrete foundation. It is a figure which shows the apparatus installation state of the precast concrete foundation 20 which concerns on 2nd embodiment.

  Hereinafter, an embodiment of a precast concrete foundation according to the present invention will be described in more detail with reference to FIGS. In order to avoid redundant description, the same components are denoted by the same reference numerals in the respective drawings. It is needless to say that the scope of the present invention is described in the scope of claims and is not limited to the following embodiments.

(First embodiment)
This embodiment concerns the aspect which installs the precast concrete foundation which concerns on this invention in the existing soil concrete.
1 and 8, a precast concrete (PC) foundation 1 is installed on an upper unit 2 for fixing a heavy gas equipment 8 for home use (for example, a gas engine power generation unit, a fuel cell power generation unit, etc.) and a soil concrete 9. The lower unit 3, the upper unit 2 and the lower unit 3 are connected as main components, and the base fixing bracket 5 is fixed to the soil concrete.
Referring to FIG. 2, upper unit 2 is configured in a concrete thick plate shape in which reinforcing reinforcing bars (not shown) are arranged. At the four corners of the upper surface 2a, mounting holes 2e for fixing the device 8 are formed, and fixing anchor plugs (not shown) are respectively driven. At the center of the side surface 2c, there is provided a claw portion accommodating recess 2d that can accommodate the claw portion 4b of the unit connecting bracket 4.

  Referring to FIG. 3, lower unit 3 has substantially the same structure and the same dimensions as upper unit 2, and a pair of mounting holes 3 d for fixing unit connecting bracket 4 and base fixing bracket 5 on both side surfaces 3 c thereof. Are provided respectively.

Referring to FIG. 4A, the unit connecting bracket 4 is in contact with the end surfaces of the upper unit 2 and the lower unit 3, and is fixed to the mounting hole 3d with bolts, and a claw portion of the upper unit 2 The claw portion 4b to be hooked on the lower surface 2f of the housing recess 2d is configured in an L shape. The fixed portion 4a is provided with a pair of oblong hole-shaped attachment holes 4c, and the claw portion 4b is provided with a pair of oblong hole-shaped attachment holes 4d.
Referring to FIG. 4 (b), the foundation fixing bracket 5 is in contact with the surface of the unit fixing portion 4a of the unit connecting bracket 4 and is connected to the mounting hole 5c with bolts and fixed to the mounting hole 5c. The soil fixing portion 5b that is bolted to the surface is configured in an L shape. A pair of oblong hole-shaped attachment holes 5c are provided in the connecting metal fixture 5a, and a pair of oblong hole-shaped attachment holes 5d are provided in the soil fixing portion 5b.
The unit connecting metal fitting 4 and the base fixing metal fitting 5 are configured in the same shape, and the positions of the mounting holes are set so that the fixing can be performed by rotating the unit connecting metal fitting 4 and the base fixing metal fitting 5 by 90 degrees.

The PC foundation 1 is configured as described above. Next, an installation method for installing the PC foundation 1 and the equipment 8 on the soil concrete will be described. Referring to FIG.
(A) Prior to installation of the PC foundation 1, a mounting hole 9a is made at a corresponding position of the lower unit 3 fixed to the soil concrete 9 adjusted horizontally, and an anchor plug (not shown) is driven in and placed.
(B) The lower unit 3 is placed between the mounting holes 9 a on the soil concrete 9. When transporting the lower unit 3, as shown in FIG. 6, the unit connecting bracket 4 can be suspended and carried by both hands in a state where it is temporarily fixed to the mounting hole 3d of the lower unit 3 with a bolt 4e.
Next, the bolt 5 e is passed through the mounting hole 5 c of the foundation fixing metal 5 and temporarily placed on the soil concrete 9.

(C) Next, the upper unit 2 is placed immediately above the lower unit 3. When carrying the upper unit 2, as shown in FIG. 7, a finger can be inserted into the claw receiving recess 2 d and carried with both hands.
(D) Referring to FIG. 8, after the upper unit 2 is mounted, the claw portion 4b of the unit connecting bracket 4 is hooked on the lower surface 2f of the claw portion receiving recess 2d, and the fixing portion 4a is fixed to the upper unit 2 and the lower unit. 3 is brought into contact with the end face. After fixing the fixing portion 5a of the base fixing bracket 5 on the upper side and aligning with the mounting hole 3d of the lower unit 3 and the mounting hole 9a of the soil concrete 9, the connecting bracket 4 and the foundation fixing bracket 5 are integrated as a bolt. Fix with 4e and 5e. At the time of fixing, the upper portion 2 and the lower unit 3 are fixed in close contact so that the claw portion 4b of the coupling metal 4 presses the housing hole lower surface 2f of the upper unit 2 downward.
(E) After the PC foundation 1 is fixed, the device 8 is placed on the upper unit 2, and the device legs 8a are fixed to the upper unit 2 with fixing bolts 8b to complete the installation.

(Second embodiment)
Furthermore, another embodiment of the present invention will be described. This embodiment concerns the aspect which installs the PC foundation 1 directly on the ground instead of the soil concrete 9. Since the configuration of the PC base 1 main body is the same as that of the first embodiment, redundant description is omitted.
FIG. 9 is a diagram showing a detailed configuration of the side edge portion of the PC base 20 installed state in the present embodiment. In this embodiment, the ground surface is shaved slightly (about 10 mm) to form the horizontal surface 21a, and the lower unit 3 is disposed on the horizontal surface 21a. Further, in the present embodiment, the upper unit 2 and the lower unit 3 are tightly fixed by using only the unit connecting bracket 4 without using the foundation fixing bracket 5.
In addition, since it is the same as that of the above-mentioned embodiment about the fixing | fixed aspect of the nail | claw part 4b of the unit connection metal fitting 4 and the fixing | fixed part 5a, the aspect at the time of conveyance of the upper unit 2 and the lower side unit 3, an apparatus fixing aspect, etc., duplication description Is omitted.

  The present invention is not limited to gas engine generators and can be widely applied as a basis for heavy equipment.

1, 20... Precast concrete (PC) foundation 2... Upper unit 3... Lower unit 4.

Claims (4)

Precast concrete foundation for heavy equipment installation,
The lower unit,
An upper unit placed on the upper surface of the lower unit;
A pair of unit connecting brackets for connecting and fixing the lower unit and the upper unit,
The upper unit includes equipment mounting holes for fixing heavy equipment on the upper surface, and claw receiving recesses for hooking the unit coupling metal on both side surfaces,
The lower unit is equipped with connecting bracket mounting holes for fixing the unit connecting bracket on both sides.
The unit connecting bracket includes a claw portion that is hooked on the lower surface of the upper portion claw receiving recess, a unit fixing portion that is in contact with the side surfaces of the upper unit and the lower unit and is bolted to the connecting bracket mounting hole, With an L shape,
Precast concrete foundation characterized by comprising In Claim 1, further comprising a foundation fixing bracket for installation on soil concrete,
The base fixing bracket abuts on the upper side of the unit fixing portion of the unit connecting bracket, and is a connecting bracket fixing portion that is bolted to the connecting bracket mounting hole.
An earth fixing part that is bolted to the earth concrete, and configured in an L shape,
Precast concrete foundation characterized by comprising   3. The precast concrete foundation according to claim 1, wherein the claw receiving recess of the upper unit is configured to be carried by an operator by inserting a finger. The lower unit is configured so that an operator can hold and carry the unit fixing portion or the soil fixing portion in a state where an operator temporarily holds the unit connecting bracket or the foundation fixing bracket with a bolt during transportation. The precast concrete foundation according to any one of claims 1 to 3.

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