JP2015194008A - Concrete basin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concrete basin which internally has a sediment pan, from which the sediment pan can be easily taken out even when sediment is hardened due to long-term use, and which enables easy discharge of the sediment accumulated on a bottom.SOLUTION: In a concrete basin 100 such as a gully, a catch basin and a reservoir basin, a bottom surface 12 has a bottom-surface central part 12a that is formed the lowest in or near the centers of side-wall inner surfaces on both opposed sides, and bottom surface parts 12b on both sides, which are provided in such a manner as to be inclined toward the side-wall inner surfaces on both the sides from the bottom-surface central part.

Description

  The present invention relates to a concrete basin such as a rainwater basin, a catchment basin or a basin.

  Rainwater provided with a container that receives earth and sand in the vicinity of the bottom of the rainwater basin, and a bottomed inner cage that has a number of drain holes in the peripheral wall inside the basin body is inserted through the upper opening so that it can be inserted and removed. In the seepage trough, the diameter of the drainage hole of the cage body and the drainage hole of the inner cage is small on the lower side, and gradually increases as it goes upward, and the drainage hole of the cage body and the drainage hole of the inner cage are on the lower side. There has been proposed one that is disposed at a position shifted from each other and is disposed at a position where the upper side overlaps (Patent Document 1).

  According to such dredging, mud and debris that flowed in along with rainwater are blocked by the inner cage and the peripheral wall portion of the dredging main body and are not easily discharged directly into the ground. Therefore, mud and debris are collected almost certainly in the lower part of the mud reservoir of the main body, and the supernatant water is discharged into the ground without resistance from the large drainage hole that matches the upper main body and the inner cage. As a result, clogging of the underground drainage route is greatly improved, and it is possible to maintain the long-term penetration performance of rainwater into the ground.

  However, when a basket with an inner cage is used for a long period of time, the sediment accumulated around or at the bottom of the inner cage bites into the gap, and the encroached sediment is strongly pressed and hardened, making it impossible to remove the inner cage. There is. Also, even if the inner cage is forcibly pulled up, the earth and sand that is firmly clamped to the bottom is made with a narrow opening of approximately 400 mm or less on all sides and is deeply formed with respect to the opening. In addition, there is a problem that it is very difficult to remove earth and sand from the bottom surface having corners.

JP-A-9-189065

  The present invention has been made to solve such a problem, and even in a case where the earth and sand is hardened after being used for a long time in a concrete fence having an earth and sand tray inside, the earth and sand tray can be easily taken out. The main object is to provide a concrete dredge that can be easily discharged from the sediment deposited on the bottom.

  The present invention adopts the following means in order to achieve the above-mentioned object.

In concrete dredging, such as rainwater dredging, catchment dredging or basin according to the present invention,
The bottom surface is the lowest bottom center portion formed in the center or near the center of the side wall inner surfaces on opposite sides, and both side bottom surface portions provided to be inclined or curved from the bottom surface center portion toward the side wall inner surfaces on both sides, It is characterized by having.

  According to the concrete fence according to the present invention, the center of the bottom surface or the vicinity of the center is formed low, and is inclined or curved from the center toward the side wall inner surface. By pushing down, the tip of the square scoop can be slid to the center of the bottom with a force applied to the bottom along the inclined or curved surface. Can be peeled off. Also, by moving the scoop along the bottom center, it is possible to remove earth and sand even with a sword-type scoop.

  Moreover, in the concrete fence according to the present invention, the bottom surface may be formed smoothly and continuously from both side bottom surface portions to the side wall inner surface. By adopting such a configuration, the scoop can be smoothly slid from the inner surface of the side wall, so that the bottom surface of the concrete fence can be prevented from being damaged.

  Furthermore, the concrete fence according to the present invention may have a sediment receiving tray on the bottom surface. By adopting such a configuration, since the earth and sand can be discharged by the earth and sand tray before the earth and sand are deposited on the bottom surface, the earth and sand deposited on the bottom surface can be reduced.

  Furthermore, in the concrete fence according to the present invention, there is a rotating shaft in the vicinity of the ends of both side surfaces, and a grating provided on the upper surface of the concrete fence so as to be openable and closable around the rotating shaft, and the rotating shaft of the grating It may be provided with a construction member for constructing a part of the opening and closing side and the earth and sand tray. By adopting such a configuration, it is possible to lift the earth and sand tray simultaneously by opening the grating. At that time, since the lever can be lifted up using the principle of the lever, even the earth and sand receiving tray firmly fixed by the compacted earth and sand can be easily pulled up.

  Furthermore, in the concrete basket according to the present invention, the bottom surface of the earth and sand tray may be formed in a shape similar to the shape of the bottom surface of the concrete basket. By adopting such a configuration, it is possible to position the earth and sand tray and the bottom surface of the concrete basket, and the earth and sand tray can be arranged at a fixed position. In addition, the gap between the earth and sand tray and the bottom surface of the concrete fence can be minimized, and biting of sediment such as earth and sand can be minimized.

  According to the blade guide member and the side groove block according to the present invention, it is possible to provide a concrete fence that can easily take out the earth and sand tray and can easily discharge the earth and sand accumulated on the bottom.

FIG. 1 is a cross-sectional view of a concrete fence 100 according to an embodiment viewed from one side surface direction. FIG. 2 is a cross-sectional view of the concrete fence 100 according to the embodiment as viewed from the direction of 90 ° in the horizontal direction with respect to FIG. 1. FIG. 3 is a cross-sectional view showing another embodiment of the bottom surface 12 of the concrete basket 100 according to the embodiment. FIG. 4A is a perspective view showing the earth and sand receiving tray 30 of the concrete basket 100 according to the embodiment. FIG. 4B is a cross-sectional view showing another embodiment of the earth and sand tray 30 of the concrete basket 100 according to the embodiment. Drawing 5 is a mimetic diagram showing the state where peeled sediment is peeled off from concrete fence 100 concerning an embodiment. Drawing 6 is a mimetic diagram showing the state where piled earth and sand are peeled off from the concrete fence 100 concerning an embodiment with a sword tip scoop. FIG. 7 is a cross-sectional view showing a state in which a conventional concrete fence 110 is laid.

  Hereinafter, concrete fence 100 concerning an embodiment of the present invention is explained in detail using a drawing. It should be noted that the embodiments and drawings described below exemplify a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and do not depart from the gist of the present invention. Can be changed as appropriate. Corresponding components in the drawings are given the same or similar reference numerals.

  A concrete fence 100 according to an embodiment is shown in FIGS. 1 and 2. FIG. 1 is a cross-sectional view as viewed from one side surface of the concrete fence 100, and FIG. 2 is a cross-sectional view as viewed from an adjacent side surface adjacent to the one side surface. The concrete fence 100 according to the present embodiment mainly includes a concrete block main body 10, a grating 20, and an earth and sand tray 30.

  The concrete block main body 10 is made of a vertically long cubic shape ridge such as a rainwater basin, a water collection basin, or a basin, and has a bottomed vertical hole 11 with a bottom inside. When the bottom surface 12 is viewed from one side, as shown in FIG. 1, the bottom surface center portion 12a is formed to be the lowest, and both bottom surface portions 12b are opposite to the inner side walls 13 on both sides with respect to the bottom surface center portion 12a. It is formed with a slope that gradually rises toward. The bottom center portion 12a may be formed to be bent so that the tip has an angle, or may be formed to be rounded as shown in FIG. Further, the bottom center portion 12a does not mean to be completely centered with respect to the inner side walls 13 on both sides, and may be in the center or near the center. As shown in FIG. 1, the bottom surface portions 12b on both sides are smoothly and continuously connected to the inner wall 13 from the center toward the inner wall 13 on both sides via a curved surface curved in an arc from an inclined plane. It is formed to transition. In addition, the whole may be formed in the curved surface. The boundary between the inner wall 13 and the bottom surface 12 is preferably formed so as to be smoothly transitioned, but may not necessarily be formed so as to be completely smooth. Further, when viewed from a direction of 90 ° in the horizontal direction with respect to the one side surface direction, the bottom surface 12 is formed horizontally as shown in FIG. However, the bottom surface 12 when viewed from the direction of 90 ° in the horizontal direction with respect to the side surface direction does not necessarily have to be a horizontal surface, and may be formed so that the center is slightly lowered, or other forms are adopted. can do. On the other hand, the upper surface side of the concrete block main body 10 is provided with a grating mounting region 15 formed on the inside so as to be approximately the same thickness as the grating 20, and any one of the side surfaces 15 a of the grating mounting region 15. A rotating shaft 16 that rotatably supports both side end portions of the grating 20 described later is provided on the end surface of the opposing side surface 15a. In addition, the concrete block main body 10 is arbitrarily provided with a connecting portion with a side water channel in order to function as a rainwater tank, a water collecting tank, or a reservoir, as shown in FIG. Other necessary configurations can be employed.

  Like the known grating, the grating 20 is made of steel having a bearing bar and a cross bar. A grip 21 for lifting the grating 20 is provided at one end thereof, and the opposite end is provided. On both side surfaces 22 and 23 in the vicinity of the portion, there are provided fitting portions 24 that are rotatably fitted to the rotary shaft 16 of the concrete block main body 10 described above, and the rotary shaft 16 and the fitting portion 24 are fitted. By doing so, as shown in FIG. 2, the grating 20 is provided to be openable and closable so as to rotate about the rotation shaft 16.

  Further, the earth and sand tray 30 is disposed on the bottom surface 12 of the concrete block body 10. The earth and sand tray 30 is a tray for receiving earth and sand flowing in the rain or the like, and the bottom surface 31 of the tray is formed in substantially the same shape as the bottom surface 12 of the concrete block body 10 as shown in FIG. 1, the concrete block body 10 is formed so as to be arranged along the bottom surface 12. A plurality of rainwater through-holes 33 are provided in the bottom surface 31 of the tray to allow moisture such as rainwater to flow downward, so that relatively large earth and sand can be deposited on the upper surface by flowing rainwater downward. Moreover, the earth and sand receiving tray 30 is provided with the attaching part 34 which can attach the construction member 40 which hangs the grating 20 and the earth and sand receiving tray 30 mentioned later. The attachment portion 34 is not particularly limited, and may be a through hole as shown in FIG. 4A or may be provided with other attachment means. Further, the position and number of the mounting portions 34 are not particularly limited, and may be provided at four corners so that the horizontal state can be maintained when pulled up as in the embodiment, or at two locations on both sides. It does not matter, and it may be one place in the center.

  Furthermore, the erection member 40 is installed between the grating 20 and the earth and sand tray 30. The erection member 40 is made of a long member such as a chain, a rod-like body, or a string, and may be a flexible material or a hard member. By pulling the erection member 40, the earth and sand tray 30 is pulled up. If it can, the form, the number, the material, etc. can be freely selected. One end 41 of the erection member 40 is attached via the attachment part 34 of the earth and sand tray 30 described above. As shown in FIG. 2, the other end 42 is rotatably attached to a bearing bar or the like of the grating 20 on the opening / closing side from the rotation shaft. Thereby, the earth and sand receiving tray 30 can be lifted by opening the grating 20. About the position which attaches the other end part 42, if it attaches to the direction close | similar to the holding part 21 of the grating 20, the earth-and-sand receiving tray 30 can be lifted to a higher position, and if it provides in the position far from the holding part 21, it is based on a lever principle. The earth and sand tray 30 can be lifted with a weak force. In addition, if the other end part 42 is provided detachably with respect to the grating 20, it is convenient when removing the earth and sand receiving tray 30 completely.

  As shown in FIG. 1, the concrete fence 100 produced as described above is laid with a foundation crushed stone and then laid with an empty kneaded mortar 60, and the concrete fence 100 is placed on the empty kneaded mortar 60. To be installed. Then, the surroundings are buried with earth and sand and laid on the road. At this time, since the general conventional concrete fence 110 uses concrete in a cylindrical state without a bottom, first, as shown in FIG. After placing the base concrete 160 as a base on 150, laying the empty kneaded mortar 170, installing the conventional concrete casket 110, and then placing the invert concrete 180 into the casket to form the bottom. Laid in. On the other hand, in the concrete fence 100 according to the present embodiment, the base concrete 160 and the inverted concrete 180 are unnecessary, so that the on-site concrete can be reduced, the construction period can be greatly shortened, and the concrete can be opened on the same day. Is possible.

  The concrete fence 100 laid on the road surface in this way is used in the same manner as a normal rainwater tank, a water collecting tank or a basin. When used for a certain period of time, as shown in FIG. 1, the earth and sand will inevitably increase in volume at the bottom surface 12 of the concrete basin 100. At this time, since the volume of earth and sand is compacted around the earth and sand receiving tray 30 and the back side of the bottom surface 31 of the receiving tray, it is impossible or difficult to pull it up with human power. However, the concrete fence 100 according to the present embodiment can easily lift the earth and sand tray 30 with a weak force by the lever principle by opening the grating 20 around the rotary shaft 16. Further, in addition to the bottom surface 31 of the earth and sand tray 30 being formed in a curved shape, the attachment portions 34 attached to both sides are pulled, so that the earth and sand tray 30 is slightly bent, so that It will be peeled off gradually. Therefore, it can be peeled off with a weak force as compared with the form in which the entire bottom surface is peeled off at a stretch as in the background art. Thus, the earth and sand receiving tray 30 can be easily peeled off from the earth and sand that has been pressed and hardened by the lever principle and peeling. Once the earth and sand tray 30 is pulled up from the solidified sand and the like, the earth and sand tray 30 can be easily lifted by human power thereafter, and the earth and sand in the earth and sand tray 30 can be discarded. In this state, much of the earth and sand can be collected. In addition, the bottom surface 12 of the concrete block main body 10 has a hard and compacted earth and sand. Such earth and sand cannot be easily removed. In particular, the conventional concrete fence 110 having a rectangular bottom surface as in the conventional type has a problem in that it is difficult to remove corner earth and sand, and it is difficult to remove earth and sand because the force is difficult to enter in a narrow vertical hole on the horizontal plane. In contrast, in the present embodiment, as shown in FIG. 5, the bottom surface 12 of the concrete basket 100 has no corners and does not have a horizontal plane, so the flat scoop 90 is moved from the top to the bottom along the side wall inner surface. By applying a force so as to push in, it is possible to remove the earth and sand by peeling off the soil while a large force is applied to the bottom surface 12. Since the center is formed at the lowest position, the flat scoop 90 is peeled off until reaching the bottom center portion 12a, and then the soil and sand can be easily removed by performing the same operation from the inner wall 13 on the opposite side. Moreover, in general households do not have the flat scoop 90, but often have only the more popular commercial sword scoop 91. Even in such a case, in this embodiment, as shown in FIG. 6, by rotating the insertion direction of the sword scoop 91 by 90 ° and inserting it, the tip becomes adapted to the sword scoop 91 as well. However, the earth and sand can be taken out without special equipment, and the inside of the concrete fence 100 can be cleaned.

  In addition, this invention is not limited to each embodiment mentioned above, and it cannot be overemphasized that it can implement with a various aspect, as long as it belongs to the technical scope of this invention.

  As shown in the above-described embodiment, it can be used as a rainwater tank, a water collecting tank or a reservoir.

10 ... Concrete block body, 11 ... Vertical hole, 12 ... Bottom,
12a ... bottom center part, 12b ... both side bottom parts, 13 ... inner wall,
15 ... grating mounting region, 15a ... side surface, 16 ... rotating shaft,
18 ... Drain hole, 20 ... Grating, 21 ... Holding part, 22 ... Both sides,
24 ... fitting part, 30 ... earth and sand saucer, 31 ... saucer bottom face, 33 ... through-hole for rainwater,
34 ... mounting portion, 40 ... installation member, 41 ... one end, 42 ... other end,
50 ... Basic, 60 ... Mortar, 90 ... Flat scoop, 91 ... Sword tip scoop,
100 ... concrete fence, 110 ... conventional concrete fence,
150 ... foundation, 160 ... base concrete, 170 ... mortar,
180 ... Invert concrete

Claims (5)

For concrete dredging such as rainwater dredging, water collecting dredging
The bottom surface has a bottom center portion that is lowest formed at the center of the side wall inner surfaces on both sides facing each other or in the vicinity of the center, and both side bottom surface portions that are inclined from the center bottom surface toward the side wall inner surfaces on both sides. A concrete fence characterized by that.   The concrete base according to claim 1, wherein the bottom surface is formed smoothly and continuously from both bottom surface portions to the inner surface of the side wall.   Furthermore, it has an earth-and-sand receptacle on the bottom, The concrete fence of Claim 1 or 2 characterized by the above-mentioned. Furthermore, on the upper surface of the concrete fence, there is a rotating shaft in the vicinity of the ends of both side surfaces, and a grating is provided that can be opened and closed with the rotating shaft as an axis,
The concrete fence according to claim 3, wherein a construction member is provided for constructing a part of the opening and closing side of the grating rotating shaft and the earth and sand tray. 5. The concrete bowl according to claim 3, wherein a bottom surface of the earth and sand tray is formed in a shape similar to that of the bottom surface of the concrete bowl.

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