JP2579820Y2 - Masu for underground buried objects - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a basin for underground buried objects, such as a cleaning port for drainage pipes, a valve case for water pipes, an accessory for gas pipes, etc., which is provided at the rising part of underground objects for management.

[0002]

2. Description of the Related Art A drainage pipe or a water pipe buried underground is provided with a cleaning port or a valve casing that is raised from the buried main pipe toward the ground surface. A management box is provided at the top of the box, and the lid of the box is opened as necessary to clean the drainage pipe or operate a valve.

This underground buried pit is generally composed of a plurality of members, a bottom plate located at the lowest position, one or a plurality of height adjusting blocks disposed on the bottom plate, and a bottom plate. A lid disposed on the height adjusting block.

[0004] Since such a box for underground buried objects is provided below the ground surface, it is desirable to install the box so that the upper surface of the box, that is, the upper surface of the lid completely matches the ground surface.

However, since the depth from the ground surface to the underground buried object varies depending on the site, it is necessary to adjust the height corresponding to the site in order to install the top surface of the lid so as to match the ground surface. I had to prepare several types of blocks.

However, the conventional height adjusting block is:
The upper and lower portions of the cylindrical body were formed with outwardly protruding flanges, respectively, so it was necessary to use a plurality of different types of height adjustment blocks with different heights. Was.

In order to solve such a problem, Japanese Unexamined Utility Model Publication No. 4-138 discloses a "device for adjusting the height of an operating port of an underground buried pipe" which is similar to the height adjusting block. A structure using a straight tube-shaped height adjustment tube having no flange portion is disclosed as a device that plays a role.

[0008]

However, the apparatus for adjusting the height of the operation port of an underground buried pipe disclosed in the above publication places the operation port pipe on a concrete receiving board and places the pipe on the operation port pipe. Furthermore, a height adjusting tube cut to an arbitrary length is placed, and a lid body with an opening / closing lid is provided at the top, and the operation port tube and the height adjusting tube are connected by a slip prevention ring. It's just that.

Therefore, when a horizontal force is applied by the passing vehicle or vibration is applied for a long period of time, the concrete receiver and the operation port tube, or the height adjustment tube and the lid are displaced or come off. There was a risk of doing. In particular, in the case where the lid body upper surface is installed so as to be aligned with the sloped ground surface, since the entire body is installed with an inclination, there is a great risk that the lid body will shift or come off.

[0010] Further, the "operator height adjustment device for underground buried pipe" disclosed in the above publication has a large number of parts and a complicated structure, and is not suitable when the underground buried pipe is installed in a shallow place. Met.

Therefore, the problem to be solved by the present invention is that the height can be easily adjusted, there is no risk of displacement between components and there is no danger of falling off, and installation on an inclined ground can be effectively dealt with. An object of the present invention is to provide a simple pit for underground objects.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a basin for underground buried objects of the present invention is provided with a bottom plate having an opening facing a rising portion of an underground buried object, and a bottom plate disposed on the bottom plate. It is characterized by comprising a straight pipe for both cuts for height adjustment, a lid disposed on the upper part of the straight pipes for both cuts, and a connecting tool for tightly connecting the bottom plate and the lid.

Here, an elastically deformable plate-shaped positioning plate having an outer diameter equal to the inner diameter of the two cut straight pipes, and having an opening formed in the inside so as to circumscribe at least a part of the outer periphery of the rising portion. Can also be provided.

[0014]

In the present invention, the lid and the bottom plate are tightly connected to each other by a connecting member, so that the lid and the bottom plate and the straight pipes for height adjustment sandwiched therebetween are integrally fixed. Since it is possible, there is no possibility that each component is displaced or separated. In addition, since a straight double-cut tube is used for height adjustment, height adjustment is also easy.

Further, an elastically deformable plate-shaped positioning plate having a shape inscribed in the double-cut straight pipe and having an opening formed therein to have a shape circumscribing at least a part of the outer periphery of the rising portion of the underground object. With this arrangement, positioning can be facilitated in installation work not only on flat land but also on sloped land, and deviation can be prevented.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be specifically described below with reference to the embodiments shown in the drawings.

FIG. 1 is a perspective view of a vertical section of an underground buried container according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the same.

The basin for underground buried objects of the present embodiment comprises:
A double-cut straight pipe 2 for height adjustment disposed on the upper portion of the bottom plate 1, a lid 3 disposed on the upper portion of the double-cut straight tube 2, and a connector 4 for connecting the bottom plate 1 and the lid 3; It is mainly composed of

As shown in FIG. 3A, the bottom plate 1 has an elliptical outer shape and a circular opening 1a at the center.
Reference numeral 5 denotes a circumferential projection formed on the outer periphery of the opening 1a.
A first step 6 and a second step 7 are formed outward from the protrusion 5, and a notch having a through hole 8 a for fixing, which will be described later, is formed on the outer peripheral side of the second step 7. 8 are formed.

Reference numeral 9 denotes a positioning plate for setting the double-cut straight pipe 2 on the rising portion P.
It has an outer diameter 9R of the same size as R, and has a guide hole 9a inside.
Is formed. The guide hole 9a is formed with a pair of projecting pieces 9b that circumscribe a part of the outer periphery of the rising portion P.

The positioning plate 9 has a function of aligning the axis of the straight pipes 2 with the axis of the rising portion P at the time of installation work and maintaining the state thereof, thereby facilitating the positioning. Can be.

Further, since the positioning plate 9 has a suitable elasticity and has a deformable plate shape, the positioning plate 9 can be deformed when a large force acts after installation, and can be deformed. There is no damage to the rising portion P.

Further, as shown in FIG. 7, when the base plate 1 is installed on an inclined ground, that is, when the base plate 1 is installed at an angle to the rising portion P, the projecting pieces 9b of the guide holes 9a of the positioning plate 9 are connected to each other. If the opposing direction is set to be perpendicular to the inclination direction, the inclination of the rising portion P can escape to the empty portion 9c other than the projecting piece 9b of the guide hole 9a. The alignment can be performed easily and reliably.

The straight pipes 2 for height adjustment have a size whose inner diameter 2R matches the outer diameter of the projection 5 of the bottom plate 1, and a ring-shaped cushioning material 10 is attached to the outer periphery of the upper end. .

The material and the manufacturing method of the straight pipe 2 for height adjustment are not particularly limited. For example, as shown in FIG. 4, a resin concrete pipe 50 formed in a long pipe shape is used.
Is easy to cope with a variety of dimensions, and the cost is low.

The cover 3 has a cover main body 11 made of cast iron and a receiving frame 12 for receiving the lid main body 11, and a flange 13 is formed at the lower end of the receiving frame 12 over the entire circumference as shown in FIG. And four fixing flanges 14 having through holes 14 a outwardly from the flange 13.
Is molded.

The basin for the underground buried object according to the present embodiment is installed such that the rising portion P is located substantially at the center of the circular opening 1a of the bottom plate 1 in which the bolt 15 is inserted through the through hole 8a in advance.
And then the positioning plate 9
Attach. Using the positioning plate 9 as a guide, the straight two-cut pipes 2 are mounted from above. At this time, the position of the bottom plate 1 is finely adjusted so that the inner peripheral surface of the two cut straight pipes 2 coincides with the outer peripheral surface of the projection 5 formed on the bottom plate 1. Further, the lid 3 is placed on the two cut straight pipes 2, the bolt 15 is inserted into the through hole 14 a of the receiving frame 12 of the lid 3, and connected and fixed by the nut 17 via the washer 16.

Note that, as shown in FIG.
Since the fixing flange 14 and the through hole 14a are formed at the locations, the mounting position on the bottom plate 1 having the two through holes 8a can be changed every 90 °.
Therefore, even when there is a place restriction in the opening direction of the lid main body 11, it can be installed correspondingly.

As described above, the pit for underground buried objects of this embodiment is
A straight two-cut tube 2 whose length can be freely set is used, and is sandwiched and fixed between the bottom plate 1 and the lid 3 in a sandwich shape to be integrated. For this reason, even if horizontal force or vibration is applied by a passing vehicle or the like after installation, the bottom plate 1 and the double-cut straight pipes 2 and the lid 3 do not shift or separate. In addition, since the positioning plate 9 is used for mounting, the rising portion P can be easily arranged at the center of the box. Furthermore, since the bottom plate 1 is formed in an elliptical shape, installation with a narrow excavation width is possible while securing a necessary bottom plate area.

When the straight pipes 2 are not required, the cover 3 can be placed directly on the bottom 1 so that the rising portion P is buried in a portion relatively shallower than the ground surface. Is also good. In this case,
The flange 13 and the fixing flange 14 of the lid 3 are located on the upper surface of the first step portion 6 and the notch 8, respectively.

FIG. 5 shows another embodiment of the connecting member for tightly connecting the bottom plate 1 and the lid 3. The connecting member 20 of this embodiment has a plurality of through holes 20b formed in a belt-shaped main body 20a. By inserting one end of the belt-shaped main body 20a into a fixing portion 20c having a locking projection (not shown) provided at the other end, the locking projection enters the through hole 20b and is fixed at an arbitrary position. Becomes possible.

FIG. 6 is an explanatory view of the state of attachment.
The I-bolt 21 is attached to the through hole 8a of the
The belt-shaped main body 20a is inserted into the through hole 14a of the cover 1 and the cover 3 and fixed. With such a connection structure, the number of parts is small, and one-touch fixing is possible.

In the above embodiment, the rising portion P has been described as a pipe used for a drain pipe or the like. However, the rising portion P is not limited to this. For example, a valve casing of a water pipe or a gas pipe may be used. It can also be provided on an attached device or the like.

[0034]

[Effects of the Invention] The present invention has the following effects.

(1) Even if a horizontal load or vibration is applied by a passing vehicle, it is possible to obtain a tub for an underground buried object without a risk of displacement or separation between components.

(2) Since the height is adjusted using the straight pipes, the height can be easily adjusted.

(3) Positioning can be performed easily and reliably, and installation on a slope can be effectively dealt with.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional perspective view of an underground buried container according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the box for underground objects shown in FIG.

3 (a) is a plan view of the bottom plate shown in FIG. 1, and FIG. 3 (b) is a sectional view taken along line AA of FIG. 3 (a).

FIG. 4 is an explanatory diagram for explaining a manufacturing state of the double-cut straight pipe shown in FIG. 1;

FIG. 5 is a plan view of another embodiment of the coupler.

FIG. 6 is an explanatory view of a state of attachment of the coupling tool shown in FIG. 5;

FIG. 7 is an explanatory cross-sectional view showing a state of installation on a slope.

FIG. 8 is a plan view of a receiving frame.

[Explanation of symbols]

1 bottom plate, 1a opening, 2 double-cut straight pipes, 3 lids,
4 Connector, 5 Projection, 6 First Step, 7 Second Step, 8 Cut, 8a Through Hole, 9 Positioning Plate, 9a Guide Hole, 9b Projection, 9c Empty Part, 10
Cushioning material, 11 lid body, 12 receiving frame, 13 flange,
14 Fixing flange, 14a through hole, 15 bolt, 16 washer, 17 nut, 20 connector, 2
0a belt-shaped main body, 20b through hole, 20c fixing part 20, 21 I bolt, 2R inner diameter, 9R outer diameter

Claims (2)

(57) [Scope of request for utility model registration] 1. A bottom plate having an opening facing a rising portion of an underground buried object, a height-adjusted double-cut straight pipe disposed on the bottom plate, and a lid disposed on an upper portion of the double-cut straight pipe. And a connector for tightening and connecting the bottom plate and the lid. 2. It has a shape inscribed in the straight pipes,
2. The underground buried container according to claim 1, further comprising an elastically deformable plate-shaped positioning plate having an opening formed in a shape circumscribing at least a part of an outer periphery of the rising portion.