JPH1136428A - Structure for mounting control board in underground facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for mounting a control board in an underground facility, designed so that the control board is freely removably mounted in a storage container. SOLUTION: An underground facility has a control board 22 stored in a storage container 4, and infiltration of water into the control board 22 is prevented by air sealed inside the storage container 4. The control board 22 serving as the main body of the underground facility is freely removably mounted in the storage container 4 fixed in a predetermined position inside a hand hole 60 for the prevention of floating up. In this case, the control board 22 is mounted by screwing the main part of the control board 22 to the top of a control board supporting table 20, and screwing the main part of the supporting table 20 also to the casing of the storage container 4; the control board 22 may be formed by arranging a power supply and necessary control elements on an apparatus mounting plate while connecting them together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation structure of a control panel in an underground buried facility having a waterproof function, such as a control panel of a manhole pump, and more particularly to an improvement in maintenance of a structure including a control panel portion.

[0002]

2. Description of the Related Art Sewage such as factory and household wastewater and rainwater is sent to a sewage treatment plant using a difference in the level of sewerage, but it is difficult to maintain this difference in height over a long distance. The sewage is pumped up by a manhole pump in manholes provided at predetermined intervals to adjust the height difference. Generally, a control panel for controlling the operation of a manhole pump is attached to a pillar made of concrete or the like built on the ground. However, since the control panel requires a certain installation space, mounting the control panel on a column built on the sidewalk may hinder the traffic of pedestrians and the like.

For this reason, when installing a control panel of a manhole pump, there is a case where a mounting column of the control panel is not built on a sidewalk or the like but on a nearby private land in some cases. In this case, it is not always possible to obtain the consent of the owner of the private land, and it is proposed that the control panel of the manhole pump be buried underground in such circumstances.

[0004] However, when the control panel of the manhole pump is buried underground, it is necessary to take waterproof measures such as making the control panel waterproof in preparation for inundation such as heavy rain. However, conventional waterproof measures are expensive. Since the waterproof shield structure is formed by using the waterproof member, there is a problem that the manufacturing cost and the installation cost of the control panel are increased. So, as a solution,
A waterproofing function that covers the underground buried device such as the control panel from above, and prevents the underground buried device such as the control panel from being flooded even if the underground buried device such as the control panel is submerged by the air sealed in the container. Underground burial facilities equipped with are provided for practical use.

The configuration of this conventional underground facility having a waterproof function will be described with reference to FIG. FIG. 2 is a longitudinal sectional front view showing a schematic configuration of the underground burying equipment 50. In the figure, reference numeral 51 denotes a control panel of a manhole pump (not shown), which is an underground buried device. The control panel 51 is supplied with power from a power source (not shown) via a power cable 52.
Although not shown, the operation of the manhole pump is controlled according to the water level in the manhole detected by the water level detector installed in the manhole. Also, 55
Is a storage container for storing the control panel 51 from above, and a hole for embedding the control panel 51 is dug at a depth of about 1 to 2 m in the ground from the ground GR. A handhole (hereinafter abbreviated as HL) 60 is provided for preventing collapse of the groundwater and preventing intrusion of groundwater or the like.

Reference numeral 53 denotes a hook for lifting the control panel 51 of the manhole pump in the storage container 55 and mounting it on the HL 60 with a crane or the like. The control panel 51 is fixedly supported by a support 56 attached to a lower portion of the storage container 55. Reference numeral 57 denotes a support for the storage container 55, which is fixedly supported so that the storage container 55 does not swing. During maintenance and inspection of the control panel 51, the storage container 55
Is removed from the support base 57, and the control panel 51 is fixedly supported in the storage container 55 by the support member 56, and the storage container 55 is lifted up together with the storage container 55 by the hook 53. Thereafter, the control panel 51 is taken out of the storage container 55. Perform maintenance work such as maintenance inspection. The HL60 has a cover 6
The cover 1 is covered to prevent a fall of a pedestrian or the like and an inflow of rainwater or the like. Reference numeral 62 denotes a drainage facility including a drainage port 62a, a drainage pipe 62b, and the like, and discharges water entering the HL 60 into the manhole via the drainage pipe 62b.

In the above configuration, the ground GR on which the underground burial facility is installed is flooded due to heavy rain, flood, or the like, and the HL 60 is flooded.
Even if water infiltrates into the HL 60 and the inside of the HL 60 is submerged without being able to drain the water by the drainage device 62 in time,
Since the air inside is not confined in the storage container 55 and does not leak out, it is possible to prevent water from entering due to the internal pressure of the air and prevent the main part of the control panel 51 from being flooded. A power cable 52 is also provided below the control panel 51.
Since there is a portion that requires insulation, such as the connector 58, the storage container 55 has a deep bottom shape for storing the control panel 51 so as to almost completely cover the lower portion of the control panel 51 as well. I have.

[0008]

By the way, in the case of a conventional underground facility, as described above, the storage container 55 is
7, the container 55 is fixedly supported so that it does not swing.
The control panel 51 is removed from the storage container 55
In a state in which the storage container is fixed and supported, a wire of a crane is applied to the hook 53 and the storage container is lifted from the previously removed upper lid together with the storage container and taken out to the ground.
The control panel 51 is taken out of the control unit 5 and necessary maintenance work is performed. In this case, when the control panel is taken out of the storage container, the control panel is once taken out in a state where the storage container is turned down due to the assembly structure of the two, and such maintenance work is complicated, and the control panel can be easily constructed. There has been a demand for an improved structure for taking out of the storage container. The present invention has been made in consideration of the above problems (problems).
It is an object of the present invention to provide a control panel mounting structure in an underground burial facility in which a control panel can be easily taken out of a storage container.

[0009]

According to the present invention, there is basically provided a control panel mounting structure in an underground buried facility according to the present invention.
As described in, the control panel is housed in a storage container, and in an underground buried facility that prevents infiltration of the control panel with air sealed in the storage container, in order to prevent floating at a predetermined position in the handhole A control panel serving as a main body of the underground buried facility is detachably attached to the fixedly arranged storage container. With this configuration, at the time of maintenance and inspection, after the fixing structure for preventing the storage container from floating is released, the storage container can be easily taken out of the storage container in a vertically installed state.

[0010] As a specific means for mounting the control panel, the base of the control panel is screwed on a control panel support base arranged in the storage container. The base of the control panel support and the base of the casing of the storage container may be screwed together. With this configuration, the control panel can be easily attached to and detached from the storage container by tightening and loosening the screws.

Further, as described in claim 3, it is desirable that the control panel is constructed by connecting and arranging a power supply and necessary control circuit elements on a mounting plate of an instrument. With such a configuration, each electric element constituting the control panel can be compactly configured.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a control panel mounting structure in an underground buried facility according to the present invention will be described with reference to FIG. In FIG. 1, the same configuration as the conventional underground buried facility 50 having a waterproof function shown in FIG.
The same reference numerals are given and the description is omitted. FIG. 1 is a longitudinal sectional front view showing an underground buried facility 10 having a waterproof function of the present invention in a state in which a control board support stand (hereinafter referred to as a support stand) 20 and a control board 22 are stored by covering a storage container 4 from above. FIG. In the figure, a storage container 4 containing a support base 20 such as a control panel of a manhole pump and a control panel 22.
The four pillars 5a to 5d are installed around. In addition, the said support | pillar 5a-5d attaches the anchor bolt 3a-3d to the base 5Ba-5Bd, H
L60 is fixed to the bottom 60B. In addition, support 5a
5d, a pair of holding plates 6a, 6 having an L-shaped cross section
b; 6c, 6d are respectively attached by fixing bolts (fixing tools other than fixing bolts) 3e, 3f; 3g, 3h, and the bottoms of the holding plates 6a to 6d are fixed to the upper surface of the storage container 4 by fixing bolts 3m to 3m. By fixing the head of the storage container 4 by attaching it by 3p, the storage container 4 is fixed and held. Reference numerals 4a and 4b denote supports for suspending the storage container 4 with a crane or the like. In this configuration, even if the hole for the underground buried facility is flooded and the inside of the HL 60 is flooded, since the storage container 4 is fixed as described above, the storage container 4 floats even if it receives buoyancy from the water pressure. However, the support table 20 and the control panel 22 in the storage container 4 are flooded, and the storage container 4 pushes up the upper lid 61 of the underground burying equipment, and the ground G
It is possible to prevent pedestrians and the like passing through R from being harmed. Further, even when the inside of the HL 60 is not flooded, the swinging of the storage container 4 can be suppressed, so that even when an earthquake or the like occurs, the storage container 4 and the support base 20 stored in the storage container 4 Damage to the support base 20 and the control panel 22 due to collision with the control panel 22 can be prevented. Note that, in the present embodiment, 4
Although the configuration has been described in which the columns 5a to 5d are installed, the number of the columns may be increased or decreased according to the size of the control panel. 4 and the storage container 4 is attached to the bottom wall 6 in the same manner.
It is good also as a structure fixed to 0B.

The support base 20 and the control panel 22 of the underground buried facility having the above-mentioned floating prevention structure are housed in the storage container 4 and are detachably attached to the storage container 4 as follows. That is, in FIG. 1, 57 is a support for fixing the storage container 4 to the bottom of the inner wall, 22 is a control panel, 20 is a substantially inverted U-shaped control panel support, and the control panel 22 is a frame-shaped base. 22a is fixed on the support base 20 by screws 24a to 24d, and the legs of the support base 20 and the storage container 4 are detachably fixed by screws 25a to 25d. It is preferable that the control panel 22 is configured by connecting and arranging necessary control circuit elements including a power supply and a sequencer on a mounting plate of the instrument as shown in the figure.

In the above configuration, when performing maintenance work such as maintenance and inspection of the control panel 22, an operator (not shown) removes the lid 61 and performs the following work. First, by removing the bolts 3a to 3h, the storage container 4 is released from the floating prevention mechanism using the columns 5a to 5d and the holding plates 6a to 6d.
The storage container 4 is pulled up over 4b. Then screw 2
Loosen 5a to 25d to release the connection between the storage container 4 and the support base 20. Then, only the storage container 4 is lifted by the crane, so that the maintenance and inspection of the control panel 22 can be performed as it is. When the control panel 22 for which maintenance and inspection has been completed is to be stored in the storage container 4, the control panel 22 is screwed to the support base 20 in the reverse order.
After a to 24d are tightened and fixed, they are stored in the storage container 4, and the screws 25a to 25d are tightened between the lower portion of the storage container 4 and the base of the support base 20, and then the storage container 4 is fixed to the bottom 60B of the HL 60. I do. Thereafter, the storage container 4 may be fixed to the bottom portion 60B of the HL 60 by the above-described floating prevention mechanism. In the above embodiment, the storage container 4 and the support 2
Although the configuration has been described in which 0 is screwed, the lower portion of the storage container 4 and the support base 20 may be held by a plurality of holding rods inserted so as to be supported through.
In this case, the holding rod is assumed to be supported by the backing plate with respect to the storage container 4.

[0015]

As described above, the control panel mounting structure in the underground buried facility of the present invention has the following excellent effects. (1) At the time of maintenance and inspection, after the first support base is released to release the fixed structure for preventing floating from the storage container, the control panel is screwed from the storage container while the storage container remains in the vertically installed state. Can be easily taken out of the storage container with a simple operation of loosening, so that maintenance work at the time of maintenance and inspection can be performed efficiently. (2) That is, as a specific mounting structure, as described in claim 2, it is a simple mounting configuration in which the base of the control panel is screwed on a support table arranged in the storage container. Can be easily performed, and the control panel can be easily and accurately attached to and detached from the storage container by tightening and loosening the screws. (3) When the control panel is constructed by connecting and arranging a power supply and necessary control circuit elements on a mounting plate of an instrument, the electric elements constituting the control panel can be made compact. Can be configured.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of an underground burial facility to which a control panel mounting structure of the present invention is applied.

FIG. 2 is a longitudinal sectional front view showing a schematic configuration including a mounting structure of a control panel of a conventional underground burial facility.

[Explanation of symbols]

 4: Storage container 10: Underground burying equipment of the present invention 20: Control board support base 22: Control board 24a, 24b: Screw 25a to 25d: Screw 60B: Bottom of HL

Claims (3)

[Claims] 1. An underground buried facility in which a control panel is stored in a storage container and air is sealed in the storage container to prevent flooding of the control panel, and is fixed at a predetermined position in a handhole to prevent floating. A control panel mounting structure in an underground buried facility, wherein a control panel serving as a main body of the underground buried facility is detachably mounted in the storage container to be arranged. 2. The control panel is mounted by screwing a base of the control panel to the control panel on a control panel support, and by screwing both a base of the control panel support and a base of a casing of a storage container. 2. The mounting structure for a control panel in an underground buried facility according to claim 1, wherein the control panel is detachably mounted. 3. The mounting structure of a control panel in an underground buried facility according to claim 1, wherein the control panel is configured by connecting and arranging a power supply and necessary control circuit elements on a mounting plate of an appliance. .