Drainage arrangement and drainage system

Abstract

The invention relates to a drainage arrangement, for example a channel (10) or a point drain, having a drainage body (11), which has a body base (12) and two opposite side walls (13), wherein at least one recess (15) is formed on the outside of each of the side walls (13), wherein the recess (15) comprises a lateral cutout (16) in the body base (12), wherein the cutout (16) is bounded by an at least partially encircling projection (17), which forms at least one anchoring undercut in the substrate.

Description

[0001] Drainage object and drainage system

[0002] DESCRIPTION

[0003] The invention relates to a drainage object, in particular a gutter or a point drain, according to the preamble of patent claim 1. Furthermore, the invention relates to a drainage system with such a drainage object.

[0004] DE 295 18 272 U1 discloses a channel suitable for embedding in a concrete substrate. To improve the channel's adhesion to the substrate or concrete, the channel has recesses or cutouts in its opposite side walls. The substrate material, particularly concrete, can penetrate into these recesses to fix the channel to the substrate. The recesses are completely closed and only open to the outside at the sides. In practice, this has the disadvantage that the channel is difficult to vibrate into the substrate. However, vibrating it is important to achieve precise alignment of the channel, especially with adjoining channels and with regard to the desired gradient.

[0005] The invention is therefore based on the object of providing a drainage device that is easy to handle, in particular, can be inserted easily and precisely into a subsurface, while simultaneously ensuring good anchoring in the subsurface. Furthermore, the invention is also based on providing a drainage system comprising such a drainage device.

[0006] According to the invention, this object is achieved by a drainage article according to claim 1 and a drainage system according to claim 14. Thus, the invention is based on the idea of ​​providing a drainage article, e.g., a channel or a point drain, with a drainage body having a body base and at least two opposing side walls. At least one recess is formed on each of the side walls. In the drainage article according to the invention, the recess comprises a lateral cutout in the body base, wherein the cutout is delimited by an at least partially circumferential projection that forms at least one undercut for anchoring in the subsurface.

[0007] In contrast to the depressions in the channel according to DE 295 18 272 U1, the recesses in the drainage article according to the invention are essentially open at the bottom. They form a cutout in the base of the body. This has the advantage that when the drainage article is inserted into the subsoil, the material of the subsoil can penetrate into the recess from the underside, i.e., starting from the base of the body. At the same time, however, the recess has or is delimited by an at least partially circumferential projection, so that an undercut is formed. The material penetrating the recess is thus prevented from flowing back, resulting in good anchoring of the drainage article in the subsoil. The at least partially circumferential projection essentially forms a barb, whereby the drainage article can be firmly anchored in the subsoil.

[0008] The lateral cutout in the base of the body also reduces the footprint or support surface of the drainage body, so that the drainage object can be installed more easily and with reduced installation space in the subsoil.

[0009] At the same time, the special shape of the recess with the projection defining the cutout allows the drainage element to be more easily vibrated into the subsoil, thus achieving precise alignment with adjacent drainage elements, such as adjacent gutters and / or point drains, and / or with a desired gradient. The shape of the recess with the cutout in the base of the body also contributes to saving material weight and installation space.

[0010] Various materials can be used as a base for the drainage device. The drainage device is particularly suitable for installation in soil, gravel, sand, or concrete.

[0011] In general, the projection that defines the cutout can extend completely around the cutout. However, it is also possible to provide several individual projections that are aligned with the edge of the lateral cutout in the base of the body. It is advantageous if at least one undercut is formed by a projection on the base of the body in each recess. However, several undercuts can also be formed, for example, with different angles. The edges of the recess, the lateral cutout, and / or the projections can also be rounded to prevent cracks or chipping that could otherwise occur when the drainage device is vibrated into the subsoil.

[0012] In a preferred embodiment of the invention, the cutout has a substantially rectangular, polygonal, round, semicircular, semi-oval, or oval inner contour. The geometry of the cutout can have various advantages. For example, a rectangular inner contour increases the length of the projection, provided it extends completely through the cutout. This increases the undercut area, resulting in high anchoring quality.

[0013] The recess in the side wall can have a depth that increases, at least in sections, in the direction of the cutout. When the drainage object is inserted into a subsurface, this ensures that the material of the subsurface, for example mortar or concrete, moves easily into the recess and is thus completely filled with the material of the subsurface. This ensures improved anchoring. The cutout with the projection that forms the undercut essentially enables anchoring in the vertical direction, whereas the recess in the side wall is largely responsible for anchoring in the axial direction of the channel. In order to reduce stress peaks when inserting the drainage object into the subsurface, it is preferably provided that the recess has an arc-shaped inner contour on the side opposite the cutout.

[0014] In general, several recesses can be formed on each side wall. The recesses are preferably distributed along the length of the drainage body, especially evenly distributed. The use of multiple recesses results in a stronger anchoring of the drainage device in the subsurface. The spatial distribution of the recesses also ensures uniform anchoring across the length of the channel.

[0015] To further enhance the anchoring effect, at least one, particularly wedge-shaped, recess can be formed in the side wall between the recesses, forming a further undercut for anchoring in the substrate. Essentially, the side wall can form webs between the individual recesses, with additional recesses arranged in these webs that widen in a wedge shape toward the base of the body. This creates a further undercut that provides additional anchoring in the substrate.

[0016] The stability of the drainage system is further enhanced by a drainage body with a width that increases, at least in sections, toward the base. This cross-sectional geometry of the drainage body ensures high stability and simultaneously promotes good anchoring of the channel in the subsoil.

[0017] In a further preferred embodiment of the invention, the drainage body is designed to be mirror-symmetrical. This mirror-symmetrical design facilitates the manufacture of the drainage device and also offers advantages during assembly, since the drainage device can be used essentially independently of its orientation.

[0018] To prevent contamination of the drainage device, which can particularly affect its primary function—the drainage of surface water—it is preferred to provide a grate between the side walls. This grate prevents coarse dirt, especially leaves, from penetrating the drainage device and thus disrupting the drainage of surface water.

[0019] It is preferred if the drainage object, in particular the drainage body with the grate, is monolithic. The grate can therefore be an integral part of the drainage body. Such drainage bodies are particularly stable and allow, for example, vehicle driving over them. Furthermore, the integral design of the grate with the drainage body offers a certain degree of protection against vandalism. Such monolithic drainage objects can be easily manufactured, for example, from polymer concrete. Using a single material for all components of the drainage object also reduces costs.

[0020] The grate of the monolithic drainage element preferably has at least one slope. In particular, the grate can have a concave surface in the cross-section of the drainage element. This allows surface water to be easily directed into the center of the drainage element.

[0021] Furthermore, it is preferably provided that the grate has openings that open into the drainage body and widen toward the drainage body. Such a design has particular manufacturing advantages. When casting such a monolithic drainage object made of polymer concrete, the cast product can be removed more easily from the mold. Typically, casting takes place in quartz sand, which can easily trickle out through a downwardly widening opening. Complex post-casting processing is thus unnecessary.

[0022] A secondary aspect of the invention relates to a drainage system with at least two previously described drainage elements, wherein the drainage elements are arranged in longitudinal alignment with one another. Preferably, the drainage elements can be connected to one another in a form-fitting manner, whereby, in particular, sealing can also be provided so that surface water does not penetrate into the subsoil between two adjacent drainage elements. The invention is explained in more detail below using exemplary embodiments with reference to the attached schematic drawings.

[0023] Fig. 1 is a perspective view of a drainage article according to the invention according to a preferred embodiment; and

[0024] Fig. 2 is a perspective view of a drainage article according to the invention according to a further preferred embodiment.

[0025] The exemplary embodiments described below refer to a drainage object designed as a channel 10. However, the invention can also be implemented as a drainage object in the form of a point drain. Such a drainage object, in combination with at least one channel, can form a drainage system according to the invention.

[0026] Fig. 1 specifically shows a channel 10 with a drainage body 11. Furthermore, a grate 18 is provided, which in the embodiment according to Fig. 1 is formed integrally or monolithically with the drainage body 11. The drainage body 10 thus forms a uniform, one-piece component with the grate 18.

[0027] The drainage body 11 specifically comprises two side walls 13 arranged opposite one another. The side walls 13 are connected to each other by a body base 12 and essentially define an egg-shaped channel 22 through which surface water can be drained.

[0028] The side walls 13 comprise a plurality of recesses 15. The recesses 15 are separated from one another by webs 20. The recesses 15 each comprise a lateral cutout 16 arranged in the body base 12. Opposite the lateral cutout 16, i.e., in the direction of the grate 18, the recesses comprise an arcuate inner contour 14. Furthermore, a circumferential projection 17 is formed in the region of the cutout 16. The projection 17 extends essentially in the plane of the body base 12 and engages in the cutout 16, so that the projection 17 forms an undercut.

[0029] The webs 20 between the individual recesses 15 have a columnar contour. In other words, the webs form a widening in the direction of the grate 18, which essentially follows the curved inner contour 14 of the adjacent recesses 15. In the area of ​​the body base 12, the webs 20 also widen. The webs 20, which are essentially columnar in design, consequently include a widening at their base. In this respect, the webs 20 between the recesses 15 have the shape of an elephant's foot.

[0030] The grate 18 comprises a plurality of openings 19 arranged at regular intervals along the longitudinal direction of the channel 10. The openings 19 are substantially rectangular in shape, although other shapes are also possible. It is also conceivable for the grate 18 to comprise several rows of openings 19.

[0031] The openings 19 extend through the entire thickness of the grate 18. The openings 19 widen toward the channel 22 or the body base 12. The cross-sectional area of ​​the openings 19, which is essentially parallel to the surface of the grate, thus increases with increasing distance from the surface of the grate 18.

[0032] The surface of the grate 18 preferably has at least one slope. It is particularly preferred if the surface of the grate 18 has a concave cross-sectional shape, so that surface water that reaches the grate 18 above the side walls is directed to the center of the grate 18, where the openings 19 are located. This ensures effective drainage of the surface water.

[0033] Fig. 2 shows an alternative embodiment of a channel 10 according to the invention. The channel 10 according to Fig. 2 differs from the channel 10 according to Fig. 1 in that, on the one hand, no grate 18 is provided that is formed monolithically with the drainage body 11. Rather, the drainage body 11 is designed such that a separate grate can be placed on the drainage body 11. Such a separate grate can be, for example, a stainless steel grate or a cast iron grate. Furthermore, it can be seen that the recesses 15 in the embodiment according to Fig. 2 have a slightly different shape. Although the basic shape is similar, the recesses 15 are deeper and flatter. In any case, lateral cutouts 16 are also provided in the body base 12, which are delimited by a circumferential projection 17 that forms an undercut.

[0034] The webs 20 between the individual recesses 15 are wider than in the exemplary embodiment according to Fig. 1, but also have the shape of an elephant's foot. In addition, and in contrast to the exemplary embodiment according to Fig. 1, additional depressions 21 which are essentially wedge-shaped are arranged in the webs 20. The wedge shape refers to the removed or missing material, with the depression widening towards the body base 12. The depth of the depression therefore increases towards the body base 12, so that a further undercut is formed which improves the anchoring of the channel 10 in the subsurface. The depressions 21 essentially have a U-shaped contour, with the apex of the U-shaped contour pointing towards the body base 12.

[0035] List of reference symbols

[0036] 10 gutter

[0037] 11 drainage bodies

[0038] 12 Body floor

[0039] 13 Side wall

[0040] 14 arched inner contour

[0041] 15 recess

[0042] 16 side cutout

[0043] 17 circumferential projection

[0044] 18 Rust

[0045] 19 Opening

[0046] 20 jetty

[0047] 21 Deepening

[0048] 22 channels

Claims

CLAIMS Drainage object, e.g. channel (10) or point drain, with a drainage body (11) which has a body base (12) and at least two opposite side walls (13), wherein at least one recess (15) is formed on the outside of each of the side walls (13), characterized in that the recess (15) comprises a lateral cutout (16) in the body base (12), wherein the cutout (16) is delimited by an at least partially circumferential projection (17) which forms at least one undercut for anchoring in the subsoil. Drainage object according to claim 1, characterized in that the cutout (16) has a substantially rectangular, semi-oval or semicircular inner contour. Drainage article according to claim 1 or 2, characterized in that the recess (15) has a depth which increases at least in sections in the direction of the cutout (16).Drainage article according to one of the preceding claims, characterized in that the recess (15) has an arcuate inner contour (14) on the side opposite the cutout (16). Drainage article according to one of the preceding claims, characterized in that a plurality of recesses (15) are formed on each of the side walls (13). Drainage article according to claim 5, characterized in that. the recesses (15) are distributed, in particular evenly distributed, in the longitudinal direction of the drainage body (11). Drainage object according to claim 5 or 6, characterized in that between the recesses (15) at least one, in particular wedge-shaped, depression is formed in the side wall (13), which forms a further undercut for anchoring in the subsoil. Drainage object according to one of the preceding claims, characterized in that the drainage body (11) has a width that increases at least in sections towards the body base (12). Drainage object according to one of the preceding claims, characterized in that the drainage body (11) is mirror-symmetrical. Drainage object according to one of the preceding claims, characterized in that a grate (18) is arranged between the side walls (13).Drainage object according to one of the preceding claims, characterized in that the drainage object, in particular the drainage body (11) with the grate (18), is monolithic. Drainage object according to claim 11, characterized in that the channel grate (18) of the monolithic drainage object has a gradient, in particular a surface that is concave in the cross-section of the drainage object. Drainage object according to one of claims 10 to 12, characterized in that the grate (18) has openings (19) leading into the drainage body. (11) and widen in the direction of the drainage body (11). Channel system with at least two drainage elements, in particular channels (10), according to one of the preceding claims, wherein the drainage elements are arranged in alignment with one another in the longitudinal direction.

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