JP2009167680A - Bottom plate of meter box for water service - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems of a conventional water service meter box with a bottom plate installed on a ground wherein when a ground surface is finished with tiles, mortar, or asphalt after pipes are installed and the finished ground surface is higher than the original ground surface, the meter box must be raised and reinstalled for height adjustment to raise the bottom plate, however, the depth of the pipes must be reset upward which requires time and cost, though a box body only can be raised, the gap is formed between the bottom plate and the box body, entry of sediment is increased and the support of the box body is eliminated, and after the construction, the box may be sunk by a load applied from above. <P>SOLUTION: This service water meter box comprises a box-shaped bottom plate which is installed under a water supply pipe, a stop valve, and a water service meter and the inside of which is recessed and shallow; and a meter box body fitted to the bottom plate. A wedge is driven between the meter box body and the bottom plate from the inside to raise the height of the meter box body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention protects a stop cock, a water meter, a check valve, and the like attached in the middle of a water supply pipe, and can be opened and closed so that meter reading, operation of the stop cock, and replacement thereof can be performed from the ground. And a water meter box having a main body and a bottom plate, and the bottom plate of the water meter box.

  The water meter box that houses the stop cock, water meter, and check valve is a method of placing two concrete blocks and bricks in parallel with the pipe, and placing the meter box across the pipe to backfill the surroundings to the ground surface. The water meter box that houses the water stop valve 101, the water meter 102, and the check valve 103 shown in FIG. 1 has a shallow box shape with a concave inside and a bottom plate 105 having several drain holes 104 on the bottom surface. There is a method of installing on the bottom surface of the stopper 101, the water meter 102, etc., and fitting the bottom plate 105 to install the meter box body 107 and backfilling to the ground surface. A substantially semi-circular cutout 108 is provided on the side surface of the bottom plate 105 and the meter box main body 107 so that the piping is not hindered. In order to prevent dirt and sand from flowing in from the space after the piping on the side surface, a mudguard plate 109 made of rubber or resin dedicated to the meter box is also covered.

  The former method can easily adjust the height of the meter box after piping. However, since the lower part is open, there is a drawback that earth and sand can easily enter the box.

  The latter method makes it difficult for earth and sand to enter the meter box body 107 from below, but if the tile surface is attached to the ground surface after piping or finished with mortar, the ground surface becomes high, and it is necessary to lift the meter box to match the ground surface. When the meter box comes out, the meter box body 107 must be lifted and the bottom plate 105 must be lifted at the same time. Although only the meter box main body 107 can be lifted, a gap is formed between the meter box main body 107 and the earth and sand inflow increases, and at the same time, the support of the meter box main body 107 is lost and it is easy to sink.

  The bottom plate 105 can be lifted by the gap between the inner bottom surface of the bottom plate 105, the stop cock 101, and the water meter 102, but no more can be lifted unless the piping is replaced. Even if it is lifted, there is a space on the lower surface of the bottom plate 105, and if this is not backfilled with earth and sand, the meter box body 107 will sink.

  It is useless and time consuming to redo piping to increase the height of the meter box body 107 and to fill the bottom surface of the bottom plate 105 with earth and sand.

In recent years, a water meter unit has been used in which a stop cock and a check valve are fixed to a base metal fitting so that a water meter entering between the stop cock and the check valve can be easily detached. Since the base of this meter unit is installed on the inner bottom surface of the bottom plate, the bottom plate cannot be lifted after piping.
JP 2001-074534 A

  When a water supply pipe is drawn into the house, the water meter box with a bottom plate installed on the ground surface that houses and protects the water stopcock, water meter and check valve, etc., and allows meter reading of the meter, When the ground surface is finished with tiles, mortar, asphalt, etc., and the ground surface (floor surface) becomes higher than the original ground surface, it is necessary to lift and re-install the meter box to match the height.

  However, the box body can be lifted, but if the base of the water meter or water meter unit is in contact with the inner bottom surface of the bottom plate or there is only a slight gap, lifting the bottom plate will only increase the piping depth upward. I can't. This takes time and money.

  Only the box body can be lifted, but there is a gap between the bottom plate and the box body, the inflow of earth and sand increases and the box body is not supported at the same time, and the box may sink due to the load from above after construction There is.

(1) The box body 1 remains as it is, and only the structure of the bottom plate can be used.
(2) The upper part of the conventional bottom plate contacting the box body is as thin as possible in consideration of the strength of fitting into the lower part of the box body, except for the part through which the pipe passes and the wedge fitting part described later. A fin 3 having a height of 10 mm or more is projected upward on the circumference. This prevents the box body 1 and the bottom plate 2 from being displaced, and at the same time prevents the earth and sand from flowing in when the box body 1 is lifted.
(3) As shown in FIG. 2, on the long side inside the bottom plate 2, inclined surfaces 4 that rise toward the short side are provided at the four corners. The uppermost part of the inclined surface 4 reaches the outermost periphery of the bottom plate 2 and is set lower than the contact surface with the box body 1. This part does not have the fin 3 attached as in the pipe part.
(4) A triangle piece having the same thickness as the protruding width of the inclined surface 4 and having the same inclined side 5 and horizontal side 6 as the angle of the inclined surface 4 protruding from the bottom plate 2 and the same angle as the inclined side 5 The holes 7 are formed and, strictly speaking, four wedges 8 are formed in which the thickness is set to become thinner from the horizontal side 6 toward the inclined side 5 in accordance with the gradient of the inner side surface of the bottom plate 2 body.
(5) The inclined surface 4 protruding from the inner side surface of the bottom plate 2 and the inclined surface 8 of the wedge 8 are loosely screwed to the bottom plate 2 with bolts 9 and washers 10 through the long holes 7 so as to slide.
(6) The uppermost portion of the wedge 8 where the upper horizontal edge 6 is located at the same position as the outer peripheral flange surface of the bottom plate 2 in contact with the box body 1 and the wedge 8 is set lower than the flange portion of the bottom plate 2 projecting inclined surface 4 The stopper 11 is provided in the vicinity of the lowermost portion of the bottom plate 2 protruding inclined surface 4 so as not to be too close to the lower side of the inclined surface 4 protruding from the bottom plate 2 from the position where the concave portion is closed.

(1) In the water meter box with a bottom plate buried in the ground surface that stores the water stop valve and check valve mainly composed of water meters, finishing work may be done with tiles, mortar and asphalt on the ground surface after piping installation There are many.

  In that case, it is necessary to match the water meter box to the finished surface. In most cases, the water meter box body 1 must be lifted because it is higher than the original ground surface.

  Since pipe installation has already been completed, it is difficult to lift the pipe itself and the bottom plate. Especially when a water meter unit is used, the piping itself must be redone.

However, if the bottom plate 2 of the present invention is used, the water meter box body 1 will rise if the wedge 8 pivotally attached to the four corners is driven from the inside to the outside with a hammer or the like. The height can be adjusted by the dimensions to be driven. If the bolt 9 is tightened after the height is adjusted and the wedge 8 is fixed to the bottom plate 2 main body, the wedge 8 will not be displaced.
(2) Since the wedges 8 are provided at the four corners, it is possible to cope with inclined finish surfaces by changing the driving dimensions.
(3) Even if the water meter box main body 1 is lifted, earth and sand will not flow into the box as long as it is within the height of the fins 3 of the bottom plate 2.
(4) The tip of the driven wedge 8 is pierced into the soil, and the settlement of the water meter box body 1 due to the load from the ground surface is suppressed.
(5) Since the fins 3 of the bottom plate 2 are fitted inside the lower part of the water meter box body 1, the water meter box except the part where the wedge 8 penetrates and the pipe passes when the water meter box body 1 is lifted There is a gap between the lowermost part of the main body 1 and the bottom plate 2, but since the fins 3 of the bottom plate 2 are on the inside, earth and sand flows into this gap and assists in preventing the settlement of the water meter box main body 1. It is certain if the surrounding earth and sand can be refilled.

  As described in detail above, when the bottom plate of the present invention is installed instead of the conventional one at the time of the first installation, it becomes easy to match the finished surface to be performed later with the upper surface of the water meter box.

  Moreover, the water meter box main body can use a conventional product as it is.

  FIG. 2 is a view showing a bottom plate of the water meter box of the present invention, a plan view of the bottom plate, a side view of the bottom plate, a three-plane view of the AA sectional view of the bottom plate, and a front view and a wedge of the wedge used for the bottom plate. FIG.

  FIG. 3 is a front sectional view of a water meter box assembly using the bottom plate of the present invention, two views of a side view, and two views of a front sectional view for explaining height adjustment.

  Four drain holes 12 are formed in the bottom plate 2, and a meter box lid 13 is provided on the upper surface opening of the water meter box body 1 so as to be openable and closable. An oval cutout 14 is formed on the side surface of the water meter box body 1. Is engraved. This oval cutout 14 can be fitted with a mudguard.

  A wedge 8 is loosely screwed to the four inclined surfaces 4 of the bottom plate 2 with bolts 9. If the wedge 8 is driven from the inside to the outside with a hammer or the like, the water meter box body 1 rises. The height can be adjusted by the driving dimensions. If the bolt 9 is screwed after the height is adjusted and the wedge 8 is fixed to the bottom plate 2, the wedge 8 will not be displaced.

  Since the wedges 8 are arranged at the four corners, it is possible to cope with the inclined surface of the ground surface.

  The bottom plate of the water meter box of the present invention has a long side of 500 mm, a short side of 250 mm, and a height of 70 mm.

  The present invention is a water meter box through which a water supply pipe penetrates, and the bottom plate is held at a conventional position using an inclined surface and the water meter box body is moved upward. Can be used for moving the box main body upward (or forward) while holding at a conventional position.

It is the 2nd figure of the top view and longitudinal cross-sectional view of the water meter box which accommodates the conventional water stop cock, a water meter, and a check valve. It is a figure which shows the bottom plate of the water meter box of the present invention, a plan view of the bottom plate, a side view of the bottom plate, a three-side view of AA cross-sectional view of the bottom plate, a front view of the wedge used for the bottom plate, and a side view of the wedge FIG. They are a front sectional view of a water meter box assembly using the bottom plate of the present invention, two views of a side view, and two views of a front sectional view for explaining height adjustment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Water meter box main body 2 ... Bottom plate 3 ... Fin 4 ... Inclined surface 8 ... Wedge 9 ... Bolt 11 ... Stopper 12 ... Drain hole 13 ... Meter box lid 14 ... Oval notch

Claims (1)

  In a water meter box that is installed under a water pipe, stop cock, water meter, etc., and is composed of a shallow box-shaped bottom plate with a concave inside and a meter box body fitted to the bottom plate, the meter box body and bottom plate The bottom plate of the water meter box that can raise the height of the meter box body by driving a wedge in between.

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