DE202018107215U1 - Shell for the production of a hybrid support ring and hybrid support ring - Google Patents

Abstract

Shell (1) for the production of a hybrid support ring (10), with walls (2), through which a volume (3) is defined, which is designed to receive a hardening material around the hybrid support ring by hardening the hardening material to form a hardened material (9), the shell (1) being annular and having a passage (4), and wherein on the shell (1) at least one bearing surface (6) of the surface to be formed with the shell (1) Hybrid support rings (10) is formed.

Description

The invention relates to a shell for the production of a hybrid support ring, a hybrid support ring and a shaft structure with such a hybrid support ring.

When building sewage shafts or street gullies, load-distributing support rings are necessary to accommodate covers, for example in the form of a grid or a plate.
These are made of cast iron, concrete, steel fiber concrete or polymer material.
Such load-distributing support rings made of concrete are most common. However, these have a very high weight and are prone to breakage during transport and installation, even though they have steel reinforcement.
Another disadvantage is that the inner ring surface of the support ring facing the waste water shaft faces the gas space of the waste water structure. Due to the corrosive gases that accumulate in such wastewater structures, such as hydrogen sulfide and others, such support rings made of concrete often cause corrosive attacks on this ring surface, so that the support ring is considerably damaged or destroyed within a few years. This lowers the coverage compared to the street level and has to be repaired at great expense.
A further disadvantage with such support rings made of concrete is the attack by de-icing salts, which are present in the melting waters especially in winter and, together with the frequent temperature changes, can also attack and ultimately destroy the concrete of the support ring.

This is where the invention comes in, which has set itself the task of overcoming the above-described disadvantages of the prior art and of providing an improved support ring, for which purpose a shell is provided for the production of a hybrid support ring.

Another object of the present invention is to provide a hybrid support ring made with the shell.

Finally, it is an object of the present invention to provide a shaft structure with such a hybrid support ring.

The first object of the present invention is achieved by the subject matter of claim 1.

It was recognized in the context of the present invention that a shell for the production of a hybrid support ring overcomes the disadvantages of the prior art if it is provided that the shell has walls through which a volume is defined, which is used to hold a hardening material is formed to form the hybrid support ring by curing the curing material to a cured material, the shell being annular and having a passage, and wherein at least one bearing surface of the hybrid support ring to be formed with the shell is formed on the shell .

The shell according to the invention is designed such that by filling the volume, which is defined by the walls of the shell, with a hardening material and hardening the hardening material to a hardened material, a hybrid support ring can be provided, which is the same as in the known concrete - Overcoming the disadvantages described.

To this end, the hybrid support ring can be produced in a simple manner either in a production facility or directly at the construction site by pouring a hardening material, such as concrete, for example, into the volume of the shell and hardening there.
Depending on the need, the concrete can be reinforced, for example, for which reinforcement bars or steel components known as such are used, other possibilities for reinforcement are that metal fibers or glass fibers or the like, for example, are added to the concrete.
The production of the hybrid support ring at the construction site can avoid the complex transport from a production site to the construction site, thereby avoiding the costs by avoiding warehousing, but also the risk of damage to storage and transportation.

By providing in accordance with the present invention that at least one support surface of the hybrid support ring to be formed with the shell is formed on the shell, such a hybrid support ring can be produced in a particularly simple and efficient manner, since the technical requirements for this support surface are thus met Dimensions, design and surface finish can be specified directly through the shell.

In the present invention, it can prove to be very favorable if it is provided that the shell is rotationally symmetrical about an axis A is trained.
This measure makes it very easy to manufacture such a shell, since a tool for such a rotationally symmetrical shell is easy to construct and build. On the other hand, this shell enables a hybrid support ring to be produced in a simple manner, which can be installed in a shaft structure without any special effort, since this is due to its rotational symmetry in is easy to align or no particular alignment with respect to the axis A requirement.

It can be very advantageous in the present invention if it is provided that the walls of the shell have the same or approximately the same thickness at all points.
In this way, a shell can be provided which has a very low weight and which is particularly accessible in a simple manufacturing process. Such a shell can also be produced with extreme dimensions, since warpage or sink marks can be avoided in this way.

In the present invention, it can be very favorable if it is provided that the shell has at least one opening in at least one wall. As a result, in the area of the opening in the wall of the shell, the hardened material, which fills or fills the volume of the shell in the hybrid support ring, can come into contact with hardening material that is used in the construction of the shaft structure. In this way, a displacement-safe arrangement of the hybrid support ring in the shaft structure can be achieved, in particular, in which the hardened material of the hybrid support ring comes into contact with, for example, hardening material when the cover is arranged and thus forms a firm connection with it, so that the hybrid Support ring is fluid-tightly connected to the cover.
It can advantageously be provided that not only one opening in the wall of the shell, but a plurality of openings in the wall of the shell are provided.

The opening or openings can be designed in various ways, for example a circular, an angular, an oval or a differently designed geometry, but it is also possible for the opening or openings to be, for example, as to the axis A concentric partially circumferential slot or is formed as a partially circumferential spiral slot.

Such breakthroughs can already be formed during the initial shaping of the shell, in that the tool used for the production already produces such. In other manufacturing processes, such breakthroughs can be made, for example, by punching or milling or other material-removing techniques.

In another embodiment of the invention it can also be provided that one or a plurality of locations, in particular marked locations, are provided on the wall of the shell, at which the wall thickness of the shell is reduced and is, for example, only 5 to 10% of the wall thickness, as it exists in the area that are not such places.
If the wall in the hybrid support ring is broken through at this point, for example with the aid of a tool, the hardened material is exposed there and can be used advantageously for connection as shown above.

In another advantageous embodiment of the invention it can be provided that the shell is designed in such a way that it is largely closed and has only a small opening for filling in the hardening material. In a further development, this can be carried out in such a way that only one opening is provided for filling the volume of the shell and one opening for venting the volume of the shell.

In a further advantageous embodiment of the invention, however, it can also be provided that the shell is designed in such a way that it is largely open, that is to say only partially limits the volume to be filled with the hardening material to form the hybrid support ring. It is preferably provided if the shell is shaped such that it is oriented towards the inside of the shaft structure so that the aggressive media from the shaft structure do not come into contact with the hardened material of the hybrid support ring. Correspondingly, further delimiting walls in the production of the hybrid support ring are then to be formed by, for example, reusable formwork, for example those made of metal, wood or polymer material.

In the case of the present invention, it can prove to be advantageous if it is provided that receiving means are provided in order to be able to receive the hybrid support ring to be formed with the shell, for example in order to move, load and unload, position, move and the like. Such receiving means can comprise eyelets which are formed in the region of the wall of the shell. It can also be provided that the wall of the shell has openings at suitable points so that, for example, a receiving means in the form of a metal rod or a metal cable, which is firmly embedded in the hardened material of the hybrid support ring, protrude from the shell at these points . It has proven itself in the context of the invention if it is provided that at least three such eyelets, metal rods or metal ropes are arranged, since this considerably simplifies the mounting of the hybrid support ring.

In a very practical embodiment of the invention, it can be provided that the first bearing surface has a surface that is structured in order to ensure a good connection of a hardening material, such as mortar, for fastening the to ensure cover to be arranged on the first contact surface. For this purpose, the surface of the first contact surface can be microstructured, in other configurations it can be provided that the surface is rough or has a large number of depressions and elevations. For this purpose, it can also be provided that this surface is roughened by a blasting process, for example a sandblasting process.

The surface of the first contact surface can also be made hydrophilic by physical and / or chemical treatment, for example by the surface using a flame and / or a plasma and / or laser radiation and / or UV radiation and / or an etching process and or an agent order is activated.

It is also possible to optimize the surface of the first contact surface by fibers protruding from the polymer matrix there, in particular mineral fibers and / or glass fibers and / or metal fibers, or by suitable fillers for improved bonding of the hardening material - as described above.

The abovementioned possibilities for modifying the surface of the first contact surface can also be provided in combination with one another.

To further improve the present invention, it can furthermore be provided that an axial wall of low height is formed on the first contact surface along at least a portion of the edge delimiting the first contact surface for breakthrough, which wall makes it easy to apply a hardening agent on the first contact surface Apply material, such as mortar, for fastening the cover to be arranged on the first support surface and smooth this material, for example with a trowel, using the upper edge of this wall, which on the one hand can produce a uniform thickness of the material on the first support surface and on the other hand is avoided, that material undesirably flows into the breakthrough.

In a further advantageous embodiment of the invention it can be provided that the hybrid support ring has an identification device which is arranged either in the shell of the hybrid support ring or in the hardened mass of the hybrid support ring. Such an identification device can be an RFID chip with which the hybrid support ring can be uniquely identified and in this way considerably simplifies the administration of a fluid system with such a hybrid support ring.

In a favorable embodiment, the shell according to the present invention can be shaped in such a way that it has on its outer edge a wall that projects radially outward in a vertical direction, which at least partially relieves the load when installed in a shaft structure and thus for the production of an improved hybrid support ring Available.

In the present invention, it can prove to be very advantageous if it is provided that the shell consists of a polymer material that is thermoplastic or thermosetting, or of a metal or contains one.
In this context, preference is given to a polyolefin, such as a polypropylene or a polyethylene or a polybutylene or a polyvinyl chloride, of which the shell consists or which contains the shell.
The polymer materials mentioned above are inert, durable, corrosion-resistant, easy to form, inexpensive and available.

Due to the separation of the hardened mass in the shell, for example the concrete, through the polymer material of the wall of the shell from the corrosive gases in the shaft structure, no corrosive attack of the concrete can occur, so that the disadvantages of the prior art described above are overcome can.

The shell of the present invention can be made in a polymer molding process such as an injection molding process or a rotational molding process or a rotary sintering process or a pressing process or a deep drawing process or an extrusion blow molding process or an additive manufacturing process such as a 3D printing process, or a combination of the processes listed above.
The processes mentioned above are suitable for producing a shell according to the present invention in large numbers in a reproducible, dimensionally stable and cost-effective manner.

Alternatively, it can be provided that the shell is manufactured entirely or partially using a generative manufacturing process, for example by a 3-D printing process.
For this purpose, a three-dimensional model that can be read by data processing machines can advantageously be used for the production.
The invention also includes a method for creating a data processing machine readable three-dimensional model for use in a shell manufacturing process. Here, the method also includes, in particular, the input of data representing a shell into a data processing machine and the use of the data to represent a shell as a three-dimensional model, the three-dimensional model being suitable for use in the production of a shell. Also included in the method is a technique in which the input data of one or more 3D scanners, which function either by touch or contactlessly, with the latter being emitted energy onto a dish and the reflected energy being received, and with a virtual three-dimensional one Model of a shell is generated using computer-aided design software.
The manufacturing process can include a generative powder bed process, in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (SHS), selective electron beam melting (Electron Beam Melting - EBM / Electron Beam Additive Manufacturing - EBAM) or solidifying powder material Binder jetting. The manufacturing process can be a generative free space process, in particular build-up welding, wax deposition modeling (WDM), contour crafting, metal powder application process (MPA), plastic powder application process, cold gas spraying, electron beam melting (Electron Beam Welding - EBW) or melt coating processes such as fused deposition Modeling (FDM) or Fused Filament Fabrication (FFF). The manufacturing process can include a generative liquid material process, in particular stereolithography (SLA), digital light processing (DLP), multi jet modeling (MJM), polyjet modeling or liquid composite molding (LCM). Furthermore, the manufacturing process can include other generative layer construction processes, in particular laminated object modeling (LOM), 3D screen printing or light-controlled electrophoretic deposition.

The second object of the present invention to provide a hybrid support ring has its solution according to the subject matter of claim 7.

The hybrid support ring of the above invention comprises a shell, as described above, and a hardened material with which the volume of the shell is at least partially filled, in particular a hardened mineral material.
Such a mineral material can in particular be concrete, but other hardening materials, such as polymer concrete, are also possible.
In a known manner, the concrete can be reinforced with fibers, for example glass fibers, metal fibers or fibers made of polymer material. Reinforcements can also be provided in the concrete in the form of reinforcements that are basket-shaped or similar.

It can also be provided here that the hybrid support ring is manufactured entirely or partially using a generative manufacturing process, for example by a 3-D printing process.
For this purpose, a three-dimensional model that can be read by data processing machines can advantageously be used for the production.
The invention also includes a method of creating a data processing machine readable three-dimensional model for use in a manufacturing process for a hybrid support ring. Here, the method also includes in particular the input of data, which represent a hybrid support ring, into a data processing machine and the use of the data to display a hybrid support ring as a three-dimensional model, the three-dimensional model being suitable for use in the production of a hybrid Support rings. Also included in the method is a technique in which the input data of one or more 3D scanners that function either by touch or without contact, the latter delivering energy to a hybrid support ring and the reflected energy being received, and wherein a virtual three-dimensional model of a hybrid support ring is generated using computer-aided design software.
The manufacturing process can include a generative powder bed process, in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (SHS), selective electron beam melting (Electron Beam Melting - EBM / Electron Beam Additive Manufacturing - EBAM) or solidifying powder material Binder jetting. The manufacturing process can be a generative free space process, in particular build-up welding, wax deposition modeling (WDM), contour crafting, metal powder application process (MPA), plastic powder application process, cold gas spraying, electron beam melting (Electron Beam Welding - EBW) or melt coating processes such as fused deposition Modeling (FDM) or Fused Filament Fabrication (FFF). The manufacturing process can include a generative liquid material process, in particular stereolithography (SLA), digital light processing (DLP), multi jet modeling (MJM), polyjet modeling or liquid composite molding (LCM). Furthermore, the manufacturing process can include other generative layer construction processes, in particular laminated object modeling (LOM), 3D screen printing or light-controlled electrophoretic deposition.

The last object of the present invention to provide a shaft structure is solved with the subject matter of claim 8.

In the context of the present invention, it was recognized that a shaft structure with a hybrid support ring, as described above, is particularly suitable for considerably reducing or avoiding the disadvantages known from the prior art.

The present invention is used in the field of manhole structures and street inlets in wastewater technology and rainwater technology, this can relate to new constructions of manhole structures or street inlets as well as their renovation. Furthermore, the present invention can be widely used in agricultural and industrial applications, in sewage treatment plant technology, in swimming pool technology, in fish farming, in food and beverage production technology, in fruit and horticulture and in other areas.

Further important features and advantages of the invention result from the subclaims, from the figures and from the associated description of the figures.

It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the combination indicated in each case, but also in other combinations or on their own without departing from the scope of the present invention.

Preferred exemplary embodiments of the invention are shown in the figures and are further explained in the following description.

The present invention is explained in more detail with reference to the attached figures.

• 1 eine perspektivische Ansicht einer Schale;
• 2 eine perspektivische teilweise geschnittene Ansicht der Schale aus 1;
• 3 eine perspektivische teilweise geschnittene Ansicht eines Hybrid-Auflagerings;
• 4 eine perspektivische Ansicht des Hybrid-Auflagerings aus 3;
• 5 eine perspektivische Ansicht eines Hybrid-Auflagerings in einer zweiten Ausführung;
• 6 eine geschnittene Ansicht eines Schachtbauwerks.

This shows:

• 1 a perspective view of a bowl;
• 2nd a perspective partially sectioned view of the shell 1 ;
• 3rd a perspective partially sectioned view of a hybrid support ring;
• 4th a perspective view of the hybrid support ring 3rd ;
• 5 a perspective view of a hybrid support ring in a second embodiment;
• 6 a sectional view of a shaft structure.

In the 1 is the shell 1 shown in a perspective view. The shell 1 is ring-shaped and has a passage 4th on. The shell 1 has walls 2nd on what a volume 3rd the Bowl 1 define.

The shell 1 is rotationally symmetrical with respect to an axis A trained, the axis A through the two surface centers, the first surface center P1 and the second area center P2 is defined. The first center of the area P1 refers to the area of the passage 4th the Bowl 1 at their first end E1 according to 1 , the second center of the area P2 refers to the area of the passage 4th the Bowl 1 at its second end E2 as shown in 1 .

In the 2nd is the shell 1 shown in a perspective partially sectioned view.
The reference numerals in 2nd correspond to those from the previous figure.
The walls 2nd that the volume 3rd the Bowl 1 define, are designed such that there is a first wall 2.1 from an upper outer edge at the second end E2 the Bowl 1 extends in the axial direction to the obtuse angle a second wall 2.2 is arranged to the axis A is designed as a conical surface section.
From the second wall 2.2 a third wall extends at an obtuse angle 2.3 in the radial direction to the axis A towards the fourth wall 2.4 approximately at right angles towards the top of the bowl 1 is arranged axially.
From the fourth wall 2.4 extends approximately at a 90 ° angle radially inwards to the axis A towards a fifth wall 2.5 which in turn has an axial sixth wall 2.6 is connected approximately at right angles, the sixth wall 2.6 like the fourth wall 2.4 is aligned.
The sixth wall 2.6 is with a seventh wall 2.7 connected, which extends radially outwards.
From the seventh wall 2.7 extends axially to the second end E2 pointing an eighth wall 2.8 that cover the inner top of the bowl 1 Are defined.
All walls 2.1 , 2.2 , 2.3 , 2.4 , 2.5 , 2.6 , 2.7 and 2.8 draw around the shell in the same way, so that it is opposite the axis A is rotationally symmetrical.

It goes without saying that other design options for the shell 1 , especially those with other arrangements of walls 2nd , possible are.

In the 3rd is a perspective partially sectioned view of a hybrid support ring 10th shown.
The reference numbers of the 3rd correspond to those from the previous figures.

The hybrid support ring 10th is formed in that in the volume 3rd the Bowl 1 a hardening material is filled, and this hardening material to a hardened material 9 is cured. The hardened material 9 fills the volume 3rd the Bowl 1 to the top of the bowl 1 on.

But it is also possible that the volume 3rd the Bowl 1 is only partially filled with the hardening material.

On the hybrid support ring 10th support surfaces are formed, with a first support surface 6.1 and a second contact surface 6.2 are provided. The first contact surface 6.1 and the second contact surface 6.2 are aligned approximately parallel to each other. Both the first contact surface 6.1 as well as the second contact surface 6.2 are circular all around on the hybrid support ring 10th educated. The first contact surface 6.1 is smaller than the second contact surface 6.2 of the hybrid support ring 10th . When installing the hybrid support ring 10th in a shaft structure 30th it is envisaged that the hybrid support ring 10th is positioned so that it is with the second contact surface 6.2 on a support 34 , which is designed as a bedding and, for example, in the form of a concrete slab or a bed made of chippings, is placed and on its first contact surface 6.1 the cover 35 is arranged, the conclusion to the top of the site GOK forms what in 6 is shown in detail.

The filling material can advantageously be filled into the volume 3rd the Bowl 1 a smooth second contact surface 6.2 be produced by pulling and smoothing the hardening material with, for example, a trowel along the upper free edges of the shell 1 bounding walls 2nd at the second end E2 he follows.

In the 4th is the hybrid support ring 10th shown in a perspective view.
The reference numbers of the 4th correspond to those from the previous figures.
The hybrid support ring is rotationally symmetrical.
According to the view 4th is the shell 1 that are used to form the hybrid support ring 10th is used, shown, the first contact surface 6.1 on the hybrid support ring 10th . The hybrid support ring 10th has, at least in sections, on its outer surface a conical section surface, which stabilizes it particularly advantageously and as a result of which the forces acting on it in the installed state are advantageously distributed downwards.

In the 5 is a hybrid support ring 10th shown in a perspective view in a second embodiment.
The reference numbers of the 5 correspond to those from the previous figures.
The one for the production of the hybrid support ring 10th shell used 1 is designed so that breakthroughs 5 in the first contact surface 6.1 the Bowl 1 are arranged so that in the manufacture of the hybrid support ring 10th by filling the volume 3rd the Bowl 1 with a hardening material and the hardening of the hardening material to the hardened material 9 this cured material 9 in the breakthroughs 5 penetrates or at the breakthroughs 5 the Bowl 1 queues and is exposed there.

The breakthroughs 5 the Bowl 1 on the first contact surface 6.1 are circular and arranged in a variety. It is provided that the distance of an opening 5 is always equally dimensioned to its two respective neighbors.

In the 6 is a sectional view of a shaft structure 30th shown.
The reference numbers of the 6 correspond to those from the previous figures.
The shaft structure 30th is installed in the ground and includes a manhole base 31 , which is set up to transport a fluid, for which purpose, for example, a channel and connections for pipes are provided, one on the manhole base 31 fluid-tight manhole ring 32 , a shaft cone placed on the shaft ring in a fluid-tight manner 33 , and a hybrid support ring 10th , the fluid-tight with the shaft cone 33 is connected and in turn on a support 34 , which in the present case is designed as a concrete slab, rests.

With the hybrid support ring 10th is a fluid-tight cover 35 connected, a cover to the top of the terrain in a conventional manner GOK represents, for example, in the form of a plate or a grid. The top of the cover 35 closes with the top edge of the site GOK from.

In the 6 is a detail X shown in an enlarged view.

The hybrid support ring 10th has a first contact surface 6.1 on which the cover 35 is placed and connected in a fluid-tight manner. It is helpful if it is provided that between the first contact surface 6.1 of the hybrid support ring 10th and the bottom of the cover 35 that on the first contact surface 6.1 is to be applied, a layer of mortar is applied to ensure a fluid-tight connection of the cover 35 to the hybrid support ring 10th to manufacture.

So much for a hybrid support ring 10th according to the second version 5 is used, the layer of mortar on the first contact surface 6.1 of the hybrid support ring 10th with the cured material 9 that in or at the breakthroughs 5 queues and comes in contact there and enter into a particularly firm connection with it. This allows the cover to be secured against displacement 35 on the hybrid support ring 10th be ensured.

The hybrid support ring 10th is with its second contact surface 6.2 on the support 34 placed in the form of a concrete slab. Here, too, it can prove to be very helpful if it is provided that between the support 34 in the form of a concrete slab and the second contact surface 6.2 of the hybrid support ring 10th a layer of mortar is arranged in order to ensure a fixed and, in particular, non-displaceable arrangement of the hybrid support ring 10th on the support 34 ensure.

Through the passage 4th of the hybrid support ring 10th can water into the shaft structure 30th from the top of the site GOK flow in here, is also the interior of the shaft structure 30th through the passage 4th accessible for inspections, maintenance, cleaning work and repairs.

Reference list

1

Bowl

2nd

wall

2.1

first wall

2.2

second wall

2.3

third wall

2.4

fourth wall

2.5

fifth wall

2.6

sixth wall

2.7

seventh wall

2.8

eighth wall

3rd

volume

4th

Continuity

5

breakthrough

6

Contact surface

6.1

first contact surface

6.2

second contact surface

9

cured material

10th

Hybrid support ring

30th

Shaft structure

31

Manhole base

32

Manhole ring

33

Manhole cone

34

In stock

35

cover

A

axis

E1

first end

E2

second end

GOK

Top of the terrain

P1

first area center

P2

second area center

X

detail

Claims (8)

Shell (1) for the production of a hybrid support ring (10), with walls (2), through which a volume (3) is defined, which is designed to receive a hardening material around the hybrid support ring by hardening the hardening material to form a hardened material (9), the shell (1) being annular and having a passage (4), and wherein on the shell (1) at least one contact surface (6) of the surface to be formed with the shell (1) Hybrid support rings (10) is formed. Shell (1) after Claim 1 , characterized in that it is rotationally symmetrical to an axis A. Shell (1) after Claim 1 or 2nd , characterized in that the walls (2) have the same or approximately the same thickness at all points. Shell (1) according to one of the preceding claims, characterized in that at least one opening (5) is provided in at least one wall (2). Shell (1) according to one of the preceding claims, characterized in that it consists of a polymer material which is thermoplastic or thermosetting, or consists of or contains a metal, and preferably of a polyolefin, such as a polypropylene or a polyethylene or a polybutylene , or a polyvinyl chloride, or contains one. Shell (1) according to one of the preceding claims, characterized in that it is in a polymer molding process, such as an injection molding process or a rotary molding process or a rotary sintering process or a pressing process or a deep-drawing process or an extrusion blow molding process or an additive manufacturing process, such as a 3D printing process, or one Combination of the processes listed above is made. Hybrid support ring (10) comprising a shell (1) according to one of the Claims 1 to 6 and a hardened material (9) with which the volume (3) of the shell (1) is at least partially filled, in particular a hardened mineral material (9). Shaft structure (30) with a hybrid support ring (10) Claim 7 .

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