EP3592908A2

EP3592908A2 - Drain trench body and center plate

Info

Publication number: EP3592908A2
Application number: EP18717224.2A
Authority: EP
Inventors: Ramon Bhatia; Jan Mieze; Marco Wandkowski
Original assignee: ACO Severin Ahlmann GmbH and Co KG
Current assignee: ACO Ahlmann SE and Co KG
Priority date: 2017-03-09
Filing date: 2018-03-07
Publication date: 2020-01-15
Anticipated expiration: 2038-03-07
Also published as: AU2018229747A1; EP3592908B1; US10808392B2; EA201992086A1; WO2018162524A3; DE102017105011A1; CN110382796B; CN110382796A; WO2018162524A2; PL3592908T3; AU2018229747B2; US20200032500A1

Abstract

The invention relates to a drain trench body having base plates (11, 12), between which columns (13) are arranged vertically. The drain trench body comprises side walls (14) which are connected to the base plates (11, 12). The side walls (14) and the base plates (11, 12) have first and second locking elements (15, 16) which are in engagement with each other. The locking elements (15, 16) are movable relative to one another in the height direction along the longitudinal axis of the columns (13). The invention further relates to a center plate (20) for a drain trench body.

Description

Rigolenkörper and middle plate

description

The invention relates to a trench body with base plates, between which columns are arranged vertically, and side walls, which are connected to the base plates. Such a trench body is known for example from DE 10 2011 086 016 AI. The invention further relates to a center plate for a trench body.

Rigolensysteme consisting of several Rigolenkörpern be used for dewatering surfaces, the water to be discharged through the

Surface of the trench body enters the trench system and is discharged from there, for example, in a sewage treatment plant. Rigolensysteme can be wrapped with a foil, which on the side walls as well as on the

Base plates is applied. Water-permeable films are used to infiltrate the rainwater. If the rigging system is to be used as a water tank, a waterproof film is used.

For the stability of the rig system, it is important that the side walls of the trench body are firmly and reliably connected to the base plates. To avoid stresses in the trench body due to different material properties, therefore, usually the same materials for the

Sidewalls and the base plates used.

The invention is based on the object to improve a trench body of the type mentioned in that sufficient stability of the trench body is given regardless of which combination of materials for the base plates and side walls is used. The invention is also based on the object to provide a center plate for a trench body. According to the invention the object is achieved with a view of the trench body by the subject matter of claim 1. With a view of the middle plate, the

Problem solved by the subject matter of claim 11.

In particular, the object is achieved by a trench body with base plates, between which columns are arranged vertically. The trench body includes side walls connected to the base plates. The side walls and the base plates have first and second locking elements which engage with each other. The locking elements are movable in the height direction along the longitudinal axis of the columns relative to each other.

The invention has the advantage that different changes in length due to different materials of the side walls and the base plates are compensated by relative movements between the locking elements in the vertical direction of the trench body. For this purpose, the locking elements can move in the vertical direction of the trench body. By the invention it is achieved that the side walls and base plates match, even if

different materials for the side walls and the base plates are used. Thus, a wide selection of material combinations is available

Available, whereby the production and functionality of the side walls and base plates can be optimized individually.

The height direction along the longitudinal axis of the columns corresponds to the vertical when installed.

Preferred embodiments of the invention are specified in the subclaims.

Thus, the first locking elements may be formed as locking elements of the side walls, in particular latching hooks. The second locking elements may be formed as holding and leading edges of the base plates. The holding and leading edges extend in the vertical direction of the trench body. This ensures that the locking elements of the side walls can slide along the holding and leading edges, whereby the relative movement between the locking elements is made possible in a simple and secure manner. The holding and leading edges are doing a double function. On the one hand, the edges hold the side walls against the base plates, ie in a direction normal to them, by the latching hooks engaging with them

Sidewalls. On the other hand, the edges guide the latching hooks in the height direction to allow a controlled relative movement. Here is the

Maintaining hold of course.

Preferably, the base plates on outer surfaces, which in

Height direction extend, wherein the side walls abut the outer surfaces and are movable relative to the outer surfaces. The arrangement of the side walls on the outer surfaces of the base plates lead to improved load transfer. In addition, the relative mobility of the locking elements and thus the side walls and the base plates is not limited.

In the preferred embodiment, the outer surfaces have edges. The sidewalls have protrusions that extend inwardly, i. extend into the interior of the trench body. The projections act with the edges as stops for limiting the relative movement of the side walls in

Height direction together. This will prevent the

Locking elements of the side walls and the base plates unintentionally release in the event of strong changes in length. The stops thus provide a backup to maintain the holding function of the locking elements.

In the most preferred embodiment, at least one center plate is disposed parallel to the base plates between the columns. The center plate reinforces the trench body in the horizontal direction. The reinforced in this way trench body can absorb relatively large lateral forces, for example, the surface forces occurring during installation in the groundwater.

Preferably, the center plate is centered in the trench body, i. arranged at about halfway up the columns.

The center plate may abut against at least one side wall to directly receive and discharge the forces introduced into the side wall.

Preferably, the middle plate abuts against all side walls. The side walls and the middle plate may be third and fourth

Have locking elements which engage with each other and are movable in the height direction along the longitudinal axis of the columns relative to each other. This embodiment has the advantage that the middle plate and the

Side walls (and base plates) made of different materials

can be made. Any length tolerances are caused by the

Relative mobility balanced.

Preferably, at least one side wall is along a virtual one

Dividing plane divisible, which runs parallel to the base plates. The divisible side wall has the advantage that smaller trench bodies can be formed as subunits of the trench body with undivided side wall. The height of the split sidewall is substantially equal to the height of the columns attached to one of the baseplates. Preferably, the side wall is centrally divisible, so that the trench body can be halved. The divisible side wall may be used preferably, but not exclusively, with the center plate described above. It is also possible to use the divisible side wall with other floor panels.

The third locking elements of the side walls may be arranged on both sides of the dividing plane. This has the advantage that after dividing the side wall both side wall halves can be used to form a trench body. If the divisible side wall used undivided, is the arrangement of the third locking elements on both sides of the

Division level increases the stability of the trench body.

Preferably, the side walls on the one hand and the base plates and / or the middle plate on the other hand are made of different materials. By choosing suitable material combinations, the properties of the trench body can be optimized even better.

According to the independent claim 11 is a center plate for a

Rigolenkörper claimed with at least one base plate, which is connected to vertically arranged columns and side walls, wherein the central plate has recesses for the columns for the arrangement of the center plate parallel to the base plate. The middle plate has the advantage that this before the

Assembling the base plates between the columns can be used so that in the assembled state of the base plates, the middle plate is arranged parallel to the base plates and between the columns. The im

Associated with the trench body described advantages also apply to the center plate according to the invention. In particular, the center plate gives the

Rigolenkörper sufficient stability even with larger loads, such as when installed in groundwater.

According to the invention, the center plate is additionally and independently disclosed and claimed by the relatively movable locking elements. By combining the middle plate with the locking elements so a trench body is created, which has material independent of sufficient stability, which is further increased in the region of the center plate. If, on the other hand, stability in the case of transverse loads is paramount, it may be sufficient to use the

Rigolenkörper equip with a center plate regardless of the relative mobility of the locking elements.

The invention will be explained in more detail below with further details with reference to the attached schematic drawings.

In this show

Fig. 1 is a perspective view of a trench body according to a

Embodiment of the invention in which the frontal side wall is folded forward for the sake of clarity;

FIG. 2 shows a section of the trench body according to FIG. 1 in the area in the first base plate; FIG.

Fig. 3 is a rear view of a side wall with first

Locking elements;

4 shows an enlarged detail of the side wall according to FIG. 3 in the region of the locking elements;

Fig. 5 is a section through the side wall in the region of the first and second

Locking elements; 6 shows a further section through the side wall in the region of the first and second locking elements according to FIG. 5;

7 shows a section through the base plate and the side wall in the region of the outer surface of the base plate.

Fig. 8 shows a section through a trench body after another

Embodiment with middle plate;

9 is a perspective view with partially cut upper columns of

Rigolenkörpers according to Figure 8 with detailed view in the region of the third and fourth locking elements.

10 an enlarged section of the side wall according to FIG. 3 in FIG

Area of the third and fourth locking elements;

Fig. 11 is a perspective view of a half Rigolenkörpers with divided

Side wall and center plate; and

12 is a perspective view of the half trench body according to FIG. 11 with a detailed view in the region of the third and fourth

Locking elements.

In the following description, the same reference numerals are used for identical and equivalent parts.

1 is a box-shaped body with grid-like boundary surfaces in the form of base plates 11, 12 and side walls 14 through which water can flow into the trench body. The trench body can be wrapped in a known manner with a geotextile to prevent the penetration of sediments into the trench system.

One composed of several such Rigolenkörpern rigging system serves as a block storage for rainwater and on the other to block infiltration of rainwater. The trench body shown in Fig. 1 comprises identical base plates 11, 12, which can be combined with each other in different ways. The upper base plate 11 is located in the installed state of the trench system above and the lower base plate 12 below. The locations "top" and "bottom" refer to the installation position of the trench body. The terms "outside" and "inside" refer to the trench body as a hollow body, wherein "inside" the interior of the trench body and "outside" mean the environment outside the trench body.

The base plates 11, 12 each have columns 13 which extend perpendicular to the base plates 11, 12 and are connected thereto. The pillars 13 form spacers which define the spacing of the base plates 11, 12 relative to one another. For this purpose, the columns 13 are attached to each other with their free ends. The columns 13, also called pylons, are cone-shaped, with the smaller cross-sectional opening the free end and the larger

Cross-sectional opening formed with the respective base plate 11, 12 connected end of the respective column 13.

The side walls 14 form the lateral boundary surfaces of the trench body. They are arranged on the entire circumference of the two base plates 11, 12 and extend between the base plates 11, 12, so that the trench body is completely bounded by the side walls 14.

As shown in Figures 1 to 6, the side walls 14 are first

Locking elements 15. The base plates 11, 12 have second

Locking elements 16 on. The locking elements 15, 16 are engaged when the side walls 14 and the base plates 11, 12 are connected.

The two locking elements 15, 16 are in the height direction of the

Rigole body, i. along the longitudinal axis of the columns 13 relative to each other movable. The longitudinal axis of the columns 13 and thus the height direction of the trench body extend in the installed state in the vertical direction. The side walls 14 and the base plates 11, 12 allow a game in

Height direction of the trench body. This causes

Length differences due to different material combinations of the side walls 14 and the base plates 11, 12 are compensated without the Block locking elements 15, 16. The different length changes can arise due to different shrinkage properties of the materials.

In the example according to FIGS. 1 to 6, the first locking elements 15 are designed as latching elements of the side walls 14, in particular as latching hooks. In the figures 3, 4 it can be seen that the latching hooks form an undercut, which for holding the side wall 14 with a second

Locking element 16 of the base plate 11, 12 is engaged. The second locking element 16 is embodied as a counterpart to the latching hooks according to FIGS. 3, 4, specifically as holding and guiding edges (see FIG. 2), which are engaged behind by the latching hooks, as shown in FIG.

The distinction of the latching hook and the holding and guiding edges extend in the height direction, so that the latching hooks are movable along the holding and guiding edges.

The holding and guiding edges are formed by recesses in the outer surfaces 17 of the base plates 11, 12. The outer surfaces 17 form the outer periphery of the base plates 11, 12th

In Fig. 5 it can also be seen that the latching hooks elastic with the

Sidewalls are connected. The spring force of the latching hooks is achieved by a bent arm 24 which is integrally formed on the side wall 14. The

Side walls 14 and the base plates 11, 12 can be locked together. The latching hooks are forced outward due to the inlet bevel 23 by the holding and leading edges and then spring into the

Rest position back.

In Fig. 6 it is shown that the holding and leading edges are wider than the latching hooks. This ensures that the engagement between the latching hooks and the holding and leading edges takes place in different positions safely, so that a secure connection between the side walls 14 and the base plates 11, 12 is made possible with a wide variety of material combinations. The side walls 14 rest on the base plates 11, 12 from the outside. This is shown in FIG. 7. For this purpose, the base plates 11, 12, the already mentioned above outer surfaces 17, the base plates 11, 12 on the

Surrounded outside and in the vertical direction, i. extend upwards. The side walls 14 abut against the outer surfaces 17 and are movable relative to these in the height direction. This ensures that the length compensation between the side walls 14 and the base plates 11, 12 takes place not only in the region of the locking elements 15, 16, but also in the region of the outer surfaces 17. The load transfer of the loads introduced into the side walls 14 takes place, inter alia, via the outer surfaces 17.

As shown in FIG. 7, the outer surfaces 17 have edges 18 which bound the outer surfaces 17 downwardly and extend in the horizontal direction on the circumference of the base plates 11, 12. The edges 18 cooperate with projections 19 formed on the sidewalls 14 and extending inwardly. Between the edges 18 and the projections 19 a distance in the vertical direction of the trench body is formed. This distance determines the degree of relative mobility between the side walls 14 and the base plates 11, 12. The edges 18 and the projections 19 thus act as stops that limit the relative mobility. This prevents that the side walls 14 unintentionally detached from the base plates 11, 12.

It is conceivable that the stops are formed by other components on the base plates 11, 12 on the one hand and the side walls 14 on the other.

Figures 8 to 12 relate to a further embodiment of the invention, in which the trench body has a central plate 20 for increasing the stability. The center plate 20 extends parallel to the base plates 11, 12 and is intended to transverse forces acting on the side walls 14, in particular

Surface forces, which can arise, for example, when installing the trench body in the groundwater.

In Fig. 8 it is shown that the middle plate 20 on the inside of a

Side wall 14 abuts (see also Fig. 9). Specifically, the middle plate 20 rests against at least opposite side walls 14 so that forces introduced into one of these side walls 14 are optimally transmitted to the pillars 13 and the opposite side wall 14. In the example according to Figures 8, 9, the middle plate 20 is on all sides of the side walls 14, so that initiated from all sides transverse forces are optimally derived.

As shown in Fig. 9, the center plate 20 is arranged in the height direction between the pillars 13. For this purpose, the center plate 20 recesses (not shown), in which the columns 13 are arranged. The recesses may be formed as apertures, which are penetrated by the columns 13, so that the columns 13 can be connected to each other in a conventional manner or are connected.

The side walls 14 have third locking elements 21 in the region of the middle plate. The middle plate 20 has fourth locking elements 22. The third and fourth locking elements 21, 22 are engaged with each other and can be moved in the height direction along the longitudinal axis of the columns 13 relative to each other. The third locking elements 21 are designed in the form of latching hooks, as shown in Figures 9 and 10. The fourth locking elements 22 are formed by holding and leading edges. The connection of the central plate 20 with the side walls 14 thus takes place in a similar manner as the connection of the base plates 11, 12 with the side walls 14 through the first and second locking elements 15, 16. Insofern is the statements on the connection between the base plates 11, 12 and the side walls 14 referenced.

In contrast to the second locking elements 16 of the base plates 11, 12, the fourth locking elements 22 each have a nose 25 which extends transversely to the direction of movement of the latching hooks. The noses 25 form

Stops and correspond in their effect to the abutments described above, which are formed from the edges 18 and the projections 19.

The side walls 14 are executed in the embodiment of FIG. 8 to 12 divisible. A trench body with split sidewall is shown in FIGS. 11 and 12.

The division plane runs parallel to the base plates 11, 12. For this purpose, a predetermined breaking point or a band-like region is in the side walls 14

intended. In this area, the side wall 14 can be divided,

for example by sawing. The band-like region is, as shown in FIG. 10, formed by rectangular openings 26 which extend over the entire width of the side wall 14. Along the openings 26, the side wall 14 can be divided in the middle. When a side wall 14 is divided, the two parts have a continuous edge in the area of (cut) edges. In this way it can be prevented that a possibly surrounding the trench body sheathing material, for. B. geotextile, is not broken by the rib structures of the side walls 14.

In Fig. 10 it can be further seen that the third locking elements 21 in the form of locking lugs on both sides of the dividing line or the

Breakthroughs 26, i. are arranged above and below. This has the advantage that the divided side walls 14 can each be used to form a half trench body, as shown in FIG. 11.

The middle plate 20 replaces one of the two base plates 11, 12 as well as the columns 13 connected to the base plate 11, 12. The half trench body thus has a base plate 11 with columns 13, which are connected directly to the middle plate 20. The side wall 14 is connected on one side to the base plate 11 and on the other hand to the middle plate 20. The middle plate 20 thus forms either the lower bottom plate of the trench body or the upper cover plate, depending on the installation position of the trench body. The connection between the

Center plate 20 and the side wall 14 takes place in a similar manner as the connection of the center plate 20 and the undivided side wall 14 of FIG. 9. Reference is made to the comments on this.

LIST OF REFERENCE NUMBERS

11 first base plate

12 second base plate

13 columns

14 side walls

15 first locking elements

16 second locking elements

17 outer surfaces

18 edges projections

center plate

third locking elements fourth locking elements inlet slope

poor

nose

breakthroughs

Claims

claims

1. Rigolenkörper with base plates (11, 12), between which columns (13) are arranged vertically, and side walls (14), with the

Base plates (11, 12) are connected,

That's why that is

the side walls (14) and the base plates (11, 12) have first and second locking elements (15, 16) which engage with each other and are movable in the height direction along the longitudinal axis of the columns (13) relative to one another.

2. trench body according to claim 1,

That's why that is

the first Verrieglungselemente (15) as locking elements of the side walls (14), in particular latching hook, and the second Verrieglungselemente (16) as holding and leading edges of the base plates (11, 12) are formed which extend in the height direction.

3. trench body according to claim 1 or 2,

That's why that net

the base plates (11, 12) have outer surfaces (17) extending in the height direction, the side walls (14) being fixed to the

Abut outer surfaces (17) and are movable relative to the outer surfaces (17).

4. trench body according to claim 3,

That's why that is

the outer surfaces (17) have edges (18) and the side walls (14) have projections (19) which extend inwardly and cooperate with the edges (18) as stops for limiting the relative movement of the side walls (14) in the height direction.

5. trench body according to one of claims 1 to 4,

That's why that is

at least one middle plate (20) is arranged parallel to the base plates (11, 12) between the columns (13).

6. trench body according to claim 5,

That's why that is

the middle plate (20) bears against at least one side wall (14).

7. trench body according to claim 5 or 6,

That's why that is

the side walls (14) and the middle plate (20) third and fourth

Connecting elements (21, 22) which engage with each other and in the height direction along the longitudinal axis of the columns (13) are movable relative to each other.

8. trench body according to one of claims 1 to 7,

That's why that is

at least one side wall (14) is divisible along a virtual dividing plane which runs parallel to the base plates (11, 12).

9. trench body according to claim 8,

That's why that is

the third locking elements (21) of the side walls (14) are arranged on both sides of the dividing plane.

10. trench body according to one of claims 1 to 9,

That's why that is

the side walls (14) on the one hand and the base plates (11, 12) and / or the middle plate (20) on the other hand are made of different materials.

11. middle plate (20) for a trench body with at least one

Base plate (11, 12) connected to vertically arranged columns (13) and side walls (14), the middle plate (20)

Recesses for the columns (13) for arranging the central plate (20) parallel to the base plate (11, 12).