KR920006427B1 - Block having a drainage in the manhole bottom - Google Patents

Abstract

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Description

Manhole drainage block structure

1 is a partial cross-sectional perspective view showing the main part of the drainage guide block for manhole according to the present invention

(A), (b), and (c) of FIG. 2 are explanatory views showing the first embodiment of the manhole drainage block according to the present invention, respectively, (b) is a cross-sectional view taken along line BB of (a), and (c) CC line cross section of (a)

3 (a), (b), (c) and 4 (a), (b), (c) and 5 (a), (b) and (c) of FIG. Explanatory drawing which shows the drainage guide block for manhole of 2nd, 3rd, and 4th Example, (b) is sectional drawing of the BB line of (a), (c) is sectional drawing of the CC line of (a)

(A), (b), (c) and (d) of FIG. 6 are perspective views of the first, second, third and fourth embodiments of the present invention, respectively.

7A and 7B are explanatory diagrams for explaining the taper of the channel of the present invention.

* Explanation of symbols for main parts of the drawings

1a, 1b, 1c, 1d: drainage induction block 2: outlet pipe

3: main body channel 4: inlet pipe

5a, 5b, 5c, 5d, 5e: channel 6: body block

7: bottom plate P: center point

q1-q4: predetermined taper angle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block structure of a manhole drainage channel that can smoothly flow flowing water flowing into a manhole into a manhole. Particularly, the present invention relates to a radially installed channel having a predetermined inflow angle on the surface of the block. At the same time, it relates to a manhole drainage induction (commonly referred to as inverted) block structure, which is formed by forming a taper respectively in the axial direction of the channel and in both wall directions perpendicular to the channel.

Conventionally, the angles of the pipelines flowing into the manhole are complicated because they are divided into several branches. Therefore, the drainage induction blocks for connecting the pipelines to each other and leading them are generally in various shapes. Therefore, it is very difficult to produce and prepare the manhole drainage induction blocks corresponding to the pipes in various directions in advance in the factory. It was manufactured in its own way, but the workability was bad and the cost was very high. There is also a technique as disclosed in Japanese Patent Application Laid-Open No. 58-165084 developed by the applicant of the present patent to improve such a conventional decision, but such a technique marks the drainage induction block or There are disadvantages in that workability is poor, such that two drainage guide blocks are connected to each other at a predetermined angle and fixed, or finally, these blocks must be fixed by being called mortar or the like on the bottom plate.

In addition, the techniques disclosed in Japanese Patent Application Laid-Open No. 58-124578, Japanese Patent Application Laid-Open No. 59-35487, Japanese Patent Application Laid-Open No. 59-35488, etc. have been known in recent years. It is a technology of forming and it has a drawback that it has to catch a large drop of incoming and outflow, and at the same time solids do not smoothly settle, and the latter two methods integrate the drainage induction block on the surface of the bottom plate itself. As a technique, this technique has a drawback that it is difficult to cope with it, and it is uneconomical, because several types of bottom plate blocks having drainage induction blocks having various angles have to be prepared in advance.

The drainage induction block structure according to the present invention is a new technology developed in view of the above-mentioned shortcomings, and in particular, an inflow pipe within a predetermined angle range is provided by radially installing a channel having a taper in a predetermined angle range. It is to provide a drainage guide block for manholes of various directions that can cope with the pipe.

According to the present invention, a channel is provided radially from the center to the outer circumferential direction at a predetermined inflow angle range on the surface of the block, and at the same time, a taper is formed in both the axial direction of the channel and in both wall directions perpendicular to it. The manhole drainage induction block structure, characterized in that.

As described above, the manhole drainage induction block structure according to the present invention is enlarged at a predetermined angle from the axial center axial direction of the waterways 5a, 5b, 5c, 5d, and 5e toward the circumferential direction. It is formed by forming a taper having a predetermined enlarged inclination angle in both the direction of the wall intersected at right angles to this, so that the inlet pipe within the angle range can correspond to one block, so the type of drainage induction block can be very small, Accordingly, it is possible to reasonably produce the induction block for drainage.

EXAMPLE

The present invention will be described in detail with reference to the accompanying drawings an embodiment of a manhole drainage guide block structure as follows. First, in FIG. 1, FIG. 2 (a), (b), (c) and (a) of FIG. 6 which are the first embodiment of the present invention, reference numeral 1a is a manhole drainage guide block according to the present invention. On the surface thereof, as can be seen from FIG. 2 (a), the main body channel 3 which enters into the upper outlet tube 2, and the inlet tube 4 which is continuous downward of the main body channel 3, can be provided. It has three channels (5a), (5b), and (5c) formed radially in an angular range of approximately 90 degrees downward from the center to the outer perimeter.

The main channel 3 and the channels 5a, 5b and 5c have their respective inclinations, instantaneous channels 5a, 5b and 5c on both the inside and the surrounding walls thereof. As shown by the contour line, a predetermined taper is formed in the axial direction and on both walls thereof. That is, as shown in Figs. 7A and 7B, each of the channels 5a, 5b, and 5c forms a predetermined gentle inclined taper in the longitudinal direction and the wall direction. It can be seen that predetermined angles θ1 to θ4 are set around the center point P here.

Accordingly, this manhole drainage guide block 1a can correspond to the inlet pipe 4 in an angular range of 90 (or 180) degrees from the center downward. In the drawings, 6 is a body block into which the manhole drainage induction block 1a of the present invention is inserted, and 7 is a donut-type bottom plate fixed to the bottom of the body block 6. The manhole drainage guide block 1a is installed in a sealed state in the body block 6 and the bottom plate 7, respectively.

Subsequently, in the second embodiment of FIGS. 3A, 3B, and 3C, the manhole drainage induction block 1b has the same structure as the manhole drainage induction block 1b. Five channels 5a, 5b, 5c, 5d, and 5e that are continuous to the main body channel 3 in the angle range of approximately 180 degrees in the lower outer circumferential direction are formed.

Therefore, this manhole drainage guide block 1b can correspond to the inlet pipe 4 in the angular range of 180 degrees which is the lower half from the center. Further, in the third embodiment of FIGS. 4A, 4B, and 4C, the manhole drainage induction block 1c is basically the above-described manhole drainage induction blocks 1a and 1b. This manhole drainage induction block 1c has three channels 5a and 5b continuous to the body channel 3 in an angular range of approximately 90 degrees in the outer circumferential direction of the lower right side from the center. ) And (5c) are formed. Therefore, this manhole drain induction block 1c can correspond to the inflow pipe 4 of the angle range of 90 degrees below the right side from the center.

In addition, in FIG. 5 (a), (b), (c), the manhole drainage induction block 1d is basically the above-mentioned manhole drainage induction blocks 1a, 1b, and 1c. The manhole drainage induction block 1d has the same structure but has three channels 5a, 5b, and (5) continuous to the body channel 3 in an angular range of approximately 90 degrees in the outer circumferential direction below the left side from the center. 5c) is installed. Therefore, this manhole drainage guide block 1d can correspond to the inlet pipe 4 in the range of an angle of 90 degrees below the left side from the center.

Since the manhole drainage induction block according to the present invention has the structure and action as described above, it can correspond to one manhole drainage induction block for any range of inflow angles, thereby greatly reducing the type of manhole drainage induction block. Thus, not only can a mass product be produced in advance as a ready-made product in a factory, but also each channel has a circumference in the axial center axis direction of the channels 5a, 5b, 5c, 5d, and 5e. As the taper is formed at an angle toward the direction and has a predetermined enlarged inclination angle on both walls crossing at right angles to it, the solids flowing into the manhole from the inlet pipe provided at the predetermined position can be lowered without any problems. It can smoothly flow downstream, and thus standardize the manhole drainage block, which was very difficult. It has a gong.

Claims (1)

Channels 5a, 5b, 5c, 5d radially from the center toward the outer circumference at a predetermined inlet angle range on the surfaces of blocks 1a, 1b, 1c, and 1d. ) And (5e), which are formed at a predetermined angle toward the circumferential direction in the axial direction of the axial directions of the channels 5a, 5b, 5c, 5d, and 5e. A manhole drainage induction block structure comprising a taper having a predetermined enlarged inclination angle in a direction above a wall intersecting at a right angle.

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