JP3575237B2 - Mounting structure of control panel in underground installation - Google Patents

Description

[0001]
TECHNICAL 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 particularly to an improvement in maintenance of a structure including a control panel portion.
[0002]
[Prior art]
Sewage such as factory / household drainage and rainwater is sent to sewage treatment plants using the height difference of sewerage, but it is difficult to maintain this height difference over a long distance, so at predetermined intervals. Sewage is pumped up by a manhole pump in the provided manhole to adjust the height difference.
Generally, a control panel for controlling the operation of a manhole pump is attached to a pillar such as concrete built on the ground. However, since the control panel requires a certain installation space, if the control panel is attached to a column built on the sidewalk, it may hinder the traffic of pedestrians and the like.
[0003]
For this reason, when installing the control panel of the manhole pump, there is a case where the mounting column of the control panel must be built on a nearby private land instead of being built on a sidewalk or the like. In this case, it is not always possible to obtain the consent of the owner of the private land, and in view of such circumstances, it has been proposed to bury the control panel of the manhole pump underground.
[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 flooding due to heavy rain, etc. There is a problem that the use of a waterproof shield structure increases the manufacturing cost and installation cost of the control panel.
Therefore, as a solution to this, a storage container is put on the underground buried device such as the control panel from above, and even if the underground buried device such as the control panel is submerged by air sealed in the storage container, the underground buried device is flooded. Underground burial facilities equipped with a waterproof function to prevent the occurrence of water are being put to practical use.
[0005]
The configuration of this conventional underground facility having a waterproof function will be described with reference to FIG.
FIG. 2 is a vertical sectional front view showing a schematic configuration of the underground burial facility 50.
In the figure, reference numeral 51 denotes a control panel of a manhole pump (not shown), which is an underground burying 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 in accordance with the water level in the manhole detected by the water level detector installed in the manhole.
Reference numeral 55 denotes a storage container for storing the control panel 51 from above, and a hole for burying the control panel 51 is digged at a depth of about 1 to 2 m from the ground GR, and the inner peripheral surface and A handhole (hereinafter abbreviated as HL) 60 is provided on the bottom surface for preventing the collapse of earth and sand and preventing intrusion of groundwater or the like.
[0006]
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 member 57 attached to a lower part of the storage container 55. Reference numeral 56 denotes a support for the storage container 55, on which the storage container 55 is placed .
At the time of maintenance and inspection of the control panel 51, the storage container 55 is detached from the support base 56 , and the control panel 51 is fixedly supported in the storage container 55 by the support member 57 , and the storage container 55 and the storage container 55 together with the hook 53 are operated by a crane or the like. Then, the control panel 51 is taken out of the storage container 55 and maintenance work such as maintenance and inspection is performed.
The HL 60 is covered with a lid 61 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 that has entered the inside of the HL 60 to the manhole via the drainage pipe 62b.
[0007]
In the above configuration, even if the ground GR on which the underground burial facility is installed is flooded due to heavy rain, flood, or the like, water infiltrates into the HL 60, and the inside of the HL 60 is submerged without being able to drain the drainage facility 62 in time. Since the air in the container 55 is trapped 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.
Also, since there is a portion of the lower part of the control panel 51 that requires insulation such as the connector 58 with the power cable 52, the storage container 55 is almost completely covered including the lower part of the control panel 51. It has a deep bottom shape to accommodate the control panel 51.
[0008]
[Problems to be solved by the invention]
In the case of a conventional underground facilities, because the container 55 as described above is placed on the support table 56, when the maintenance of the control panel 51 is detached from the support base 56 of the container 55 In a state where the control panel 51 is fixedly supported in the storage container 55 by the support member 57 , a wire of a crane is attached to the hook 53, the storage container is lifted from the previously removed upper lid, and the storage container is lifted and taken out to the ground. The control panel 51 is taken out of the container 55 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 simplified. In addition, there has been a demand for an improved structure for taking out of the storage container.
The present invention solves the above-mentioned problems (problems), and further prevents the storage container from being lifted during flooding, prevents collapse during an earthquake, and allows the control panel to be easily removed from the storage container. An object of the present invention is to provide a control panel mounting structure in a buried facility.
[0009]
[Means for Solving the Problems]
Mounting structure of the control panel in the underground facility of the present invention is basically as described in claim 1, a control panel which is a body of underground facilities, cylindrical shape end is closed open the other is In an underground burial facility in which the storage container is placed in a handhole with the open side facing down and water in the control panel is prevented by air in the storage container, The control panel is fixed on a predetermined position in the handhole using a floating prevention structure, the control panel is fixed on a control panel support for supporting the control panel, and the control panel support is The floating prevention structure includes a support fixed to a bottom surface of the handhole, and a holding plate attached to an upper portion of the support and pressing a head of the storage container, wherein the holding plate Corresponds to the support Characterized in that capable being screwed detachably Te.
According to this structure, during maintenance, by loosening the upper fixing bolt for floating anti Tome構 concrete pillars for the container, the container was taken out from the hand hole, fixing the control board support base and the receiving container Is lifted, and the storage container is lifted, so that the control panel can be taken out while keeping the storage container in a vertical position without lying down .
[0010]
In addition, as a specific mounting means of the control panel, a base of the control panel is screwed on a control panel support table arranged in the storage container, and the control panel support is mounted. the pedestal base may be such that screwed to the base portion of the container.
With this configuration, the control panel can be easily attached to and detached from the storage container by tightening and loosening the screws.
[0011]
Further, as described in claim 3, it is desirable to provide a plurality of columns of the floating prevention structure around the storage container .
With this configuration , even when the inside of the handhole is flooded, the floating of the storage container can be reliably prevented .
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of a control panel mounting structure in the underground burial facility of the present invention will be described with reference to FIG. In FIG. 1, the same components as those of the conventional underground buried facility 50 having the waterproof function shown in FIG. 2 are denoted by the same reference numerals as those in FIG. 2, and description thereof 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 housed by covering a storage container 4 from above. FIG.
In the figure, four columns 5a to 5d are installed around a support 4 such as a control panel of a manhole pump and a storage container 4 storing a control panel 22. In addition, the said support | pillars 5a-5d are being fixed to the bottom part 60B of HL60 of an underground burial installation by attaching the anchor bolts 3a-3d to the base parts 5Ba-5Bd.
Further, a pair of holding plates 6a, 6b; 6c, 6d having an L-shaped cross section are attached to the upper portions of the columns 5a to 5d by fixing bolts (fixing tools other than the fixing bolts) 3e, 3f; On the other hand, the bottom of the holding plates 6a to 6d is attached to the upper surface of the storage container 4 with fixing bolts 3m to 3p to fix the head of the storage container 4, thereby holding and holding the storage container 4.
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 water pressure. There is no such thing that the support base 20 and the control panel 22 in the storage container 4 are flooded, or the storage container 4 pushes up the upper lid 61 of the underground buried facility, thereby damaging pedestrians etc. passing through the ground GR. Can be prevented.
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 in the event of an earthquake or the like, the storage container 4 and the support base 20 stored in the storage container 4 and The support table 20 and the control panel 22 can be prevented from being damaged by the collision with the control panel 22.
In the present embodiment, the configuration in which the four columns 5a to 5d are installed around the storage container 4 has been described. However, the number of columns may be increased or decreased according to the size of the control panel. Further, instead of the columns, for example, an auxiliary plate may be provided around the storage container 4 and the storage container 4 may be fixed to the bottom wall 60B in a similar manner.
[0013]
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 with 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.
As shown in the figure, the control panel 22 is preferably constructed by connecting and arranging necessary control circuit elements including a power supply and a sequencer on a mounting plate of an instrument.
[0014]
In the above configuration, when performing maintenance work such as maintenance and inspection of the control panel 22, a worker (not shown) removes the lid 61 and performs the next work.
First, by removing the bolts 3e 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, and then the storage container is hooked on the support members 4a and 4b. Raise 4.
Next, the screws 25a to 25d are loosened to release the connection between the storage container 4 and the support base 20. By lifting only the container 4 by a crane, since the control panel 22 of the fixed or or state to the support 20 is left on the ground, to perform the maintenance of the control panel 22 in a state of vertical installation Can be.
When the control panel 22 for which maintenance and inspection has been completed is stored in the storage container 4, the control panel 22 fixed to the support base 20 is stored in the storage container 4 in the reverse order. Then, after the screws 25a to 25d are tightened between the lower portion of the storage container 4 and the base of the support base 20, the storage container 4 may be fixed to the bottom portion 60B of the HL 60, and may be attached to the floating prevention mechanism.
In the above-described embodiment, the configuration in which the storage container 4 and the support base 20 are fixed with screws has been described. May be held by the holding rod. In this case, the holding rod is supported by the backing plate with respect to the storage container 4.
[0015]
【The invention's effect】
The mounting structure of the control panel in the underground burial facility of the present invention has the following excellent effects because it is configured as described above.
(1) In the basic structure according to the first aspect, at the time of maintenance and inspection, the lifting prevention structure for the storage container is released by loosening the upper fixing bolts 3e to 3h with respect to the support, and then the storage container is hand-holed. By removing the control panel support from the storage container and lifting the storage container, the control panel can be taken out from the vertical position without laying down the storage container . Maintenance work can be performed efficiently.
(2) That is, as a specific mounting structure, as described in claim 2, if a simple mounting configuration in which the base of the control panel is screwed onto a support base arranged in the storage container is adopted , The control panel can be easily attached to and detached from the storage container easily and accurately by tightening and loosening the screws.
(3) In addition, as described in claim 3, by providing a plurality of columns of the floating prevention structure around the storage container, it is possible to reliably prevent the storage container from floating even when the inside of the handhole is flooded. Can be.
[Brief description of the drawings]
FIG. 1 is a longitudinal 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 vertical sectional front view showing a schematic configuration including a mounting structure of a control panel of a conventional underground facility.
[Explanation of symbols]
4: Storage container 10: Underground buried facility 20 of the present invention: Control board support base 22: Control boards 24a, 24b: Screws 25a to 25d: Screw 60B: Bottom of HL

Claims (3)

The control panel serving as the main body of the underground buried facility is housed in a cylindrical storage container with one open and the other closed , and this storage container is placed in the handhole with the open side down, and In underground buried facilities that prevent flooding of the control panel with air
The storage container is fixed at a predetermined position in the handhole using a floating prevention structure, and the control panel is fixed on a control panel support that supports the control panel, and the control panel support is The floating prevention structure, which is detachably attached to the storage container, includes a column fixed to the bottom surface of the handhole, and a holding plate attached to an upper portion of the column to press the head of the storage container. The mounting structure of a control panel in an underground installation , wherein the holding plate is detachably screwed to the support . Installing the prior SL control panel, as well as stop Flip sleep the base of the control panel to the control board support base, by a previous SL control panel support base of the base to stop Flip sleep at the base of the housing container, removable The control panel mounting structure in an underground burial facility according to claim 1, wherein the control panel is mounted freely. The mounting structure of a control panel in an underground burial facility according to claim 1 , wherein a plurality of the columns are provided around the storage container .

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