FI89295B - GOLVBRUNN MED GENOMFOERINGSUTRUSTNING SAMT FOERFARANDE FOER INSTALLATION AV GOLVBRUNNEN - Google Patents

Description

89295

The present invention relates to a floor drain according to the preamble of claim 1 and a bushing arrangement therefor for floor drainage of a prefabricated bathroom element and on-site wet rooms.

The invention also relates to a method for installing such a floor drain.

The bath and toilet facilities in apartment buildings and similar buildings are often manufactured in factories as ready-to-install units, which are connected to the building's HVAC system. Bathroom elements are placed on hollow core slabs or other load-bearing structure of the building. The connections required by the element are assembled in a separate flue space, through which it is connected to the flue of the building. No more openings need to be made in the walls and floor of the building for the penetrations, except for the drain of the floor drain.

Drainage of the floor drain can be carried out in two ways-25 Sat. The drain can be led through a hollow slab under the bathroom element to the space below the slab or the drain pipe can be placed at the interface between the floor surface of the element and the cavity slab. If the drain pipe is placed on top of a cavity slab, the floor casting of the element must be made thick enough for the water trap of the floor drain and the drain pipe to fit under the casting. In this case, the threshold height for the bathroom becomes high and an unnecessarily thick layer of casting has to be used on the floor of the element. Thick casting increases the mass of the element and causes unnecessary material costs.

35 In order to make the floor casting thinner, the water trap and the drain pipe can be placed partially or completely under the floor casting of the element. In this case, when installing the element, 2 89295 sufficient space must be worked on the surface of the hollow core slab under the element for drainage. When material is removed from the surface of the slab, its load capacity decreases and the element must be installed in practice so that the sewer pipe runs inside the cavities of the 5 slabs, which limits the placement of the element and the number of possible floor plans. If the drain pipe is placed transverse to the direction of the slabs of the slab, the prestressing steels on the surface of the slab will have to be cut. The cutting of the steels 10 considerably reduces the load-bearing capacity of the slab, which must be taken into account when dimensioning the slab or the drainage point must be reinforced, for example by additional reinforced casting.

If the drainage of the floor drain is carried out through a hollow slab under the bathroom element-15, the floor drain with water trap is attached to the element at the factory and when installing the element the floor drain is fitted in the hole in the slab. The floor well is sealed by pouring a thin layer of concrete into the through hole below the slab. Wet 20 concrete is prevented from flowing out of the hole with a ring attached to the underside of the hollow core slab. The manufacture of such a bushing is cumbersome because the sealing casting of the bushing must be done from the bottom up. The sealing casting extends below the slab only over the narrow base between the cavity and the lower surface 25 of the slab. Thus, the concrete layer at the bushing remains very thin and it is difficult to manufacture the bushing in accordance with fire safety regulations. The sound insulation of the bushing is poor and a rather large hole must be made in the load-bearing plate for the bushing. The parts of the floor drain 30 under the floor of the drainage element are easily damaged during transport.

If the floor of the element is cast in place as a casting or the entire wet room to be drained is manufactured and its floor is cast at 35 construction sites, the known bushings have the same disadvantages as in the construction of the element.

It is an object of the present invention to provide a floor drain for wet rooms, which can be retrofitted after the element has been installed or in connection with the casting of the wet room floor and sealed to the penetration point 5 by casting above the slab.

The invention is based on the fact that the pipe forming the center of the water trap, which acts as a floor drain penetration, is installed at the penetration point by means of a closing plate before installing the bathroom element or casting the floor of another wet room. The pipes are fastened and the bushing is sealed with cast-in-place concrete, and the part of the floor drain housing and the floor drain grate are installed in a prefabricated hole in the floor of the element after the element has been installed.

More specifically, the floor drain according to the invention is characterized by what is stated in the characterizing part of claim 1.

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The installation method according to the invention is in turn characterized by what is stated in the characterizing part of claim 6.

The invention provides considerable advantages.

By means of the present invention, the bushing meets fire safety regulations and is well soundproof. The floor opening can be made as thin as possible. The packing pak-30 is determined by the required height difference between the edge of the floor drain and the edges of the floor, i.e. the steepness of the required tiles. Thanks to the low casting, the threshold height between the bathroom and the rest of the apartment remains low. The floor can be cast at the factory with the element upside down, which makes it easier to manufacture. There are no protruding parts under the floor of the element that could break during transport or installation. The bushing is easy to manufacture because the necessary castings can be made before the element is installed above the slab and the floor drain can be assembled at the bushing after the element has been installed without tools.

The floor drain according to the invention can also be used when the floor of an element is cast after installation and for the drainage of other wet rooms. The installation method is almost the same.

The invention will now be described in more detail with reference to the accompanying drawings.

Figure 1 shows one structure according to the invention installed.

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Figure 2 is an enlarged detail of Figure 1.

Figure 3 is a further enlarged detail of Figure 2.

Fig. 4 shows another installation method of the embodiment of Fig. 1.

Figure 1 shows a cross-section of the bathrooms of two overlapping floors. The upper element 1 uses a floor drain according to the invention and the lower 12 a prior art solution 13. The flue spaces 2 of the elements are shown in the figure on the right. The drain pipe 7 of the floor drain according to the invention is led through the space 8 between the lower surface of the hollow slab 11 below the bathroom element 1 and the roof 8 of the bathroom 12 of the lower floor 30 to a heat and sound insulated sewer in the flue 2. The drain pipe 7 is supported by a bracket on the lower surface of the hollow slab 11 and connected to the central pipe 5 acting as a floor drain passage by a bend piece 6. The end of the bend piece 6 connected to the central drain pipe 5 locks the shutter plate 14 against the lower surface of the plate 11. The lead-through opening is sealed by a concrete casting 10 extending halfway into the cavity at the opening of the slab 11 5 89295. The floor drain housing 4 is fixed to the upper end of the central pipe 5. The upper edge of the well housing 4 extends approximately flush with the inclined floor casting 3 of the element 1.

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The floor drain of Figure 1 is shown in more detail in Figures 2 and 3. Figure 3 is an enlargement of point A of Figure 2. The floor drain housing 4 is inserted into the end of the center tube 5 and the seal 15 seals the joint 10 of the center tube 5 and the housing 4. The floor drain hole element 1 in the floor is formed by a plastic frame 18 attached to the floor casting 3. The bathroom floor mat 17 is folded in the hole hole over the plastic frame and supported at the edge of the mat 17 by a carpet ring 19. The well housing 4 fits inside the plastic frame 18 is a platform flange 23 corresponding to the plastic frame 18, which prevents the housing 4 from sinking too deep into the lead-through opening. The grate 16 of the floor drain is placed on the carpet ring 19. The water trap of the well is formed by a well housing 20 4, a central pipe 5 and a water trap lid 22 curved over the pipe 5.

The floor drain is installed as follows. A hole 25 is made in the hollow core slab 11 under the bathroom element 1 at the floor drain. A hole is made in one of the cavities, so that as little material as possible needs to be removed from the plate 11. The slabs 11 generally do not have reinforcing steels at this point which should be cut when making the hole, so that the load-bearing capacity of the slab is not substantially reduced due to the 30 holes. After puncturing the hole, the drain pipe 7 and the middle pipe 5 are installed in place. The closing plate 14 is pressed during installation by means of a sleeve of the bend piece 6 against the lower surface of the hollow plate 11, whereby the template 14 closes the through hole and supports the central tube 6 perpendicular to the lower surface of the plate 35 11. The central tube 5 is a telescopic tube and the height of the upper edge 6 89295 of the tube 5 is adjusted by means of a telescopic function. When the height of the central pipe 5 is set to the correct, concrete is poured into the cavity perforated in the through hole and the slab 11. The distance of the concrete surface from the top edge of the slab 11 is left large enough for the housing 4 of the floor drain 5 to fit between the top surface of the casting and the floor surface of the bathroom element 1 to be installed on the slab 11. Once the bathroom element 1 has been installed, the well housing 4 is pressed onto the end of the central tube 5 and the protective grille 16 is placed on top of the well. The seal 15 between the well housing 4 and the central pipe 5 10 is slightly flexible, whereby small position errors in the installation of the arrangement are compensated. Once the well grate 16 is in place, the floor well is complete.

Figure 4 shows an alternative installation method in which the floor 3 of the bathroom 15 is cast in place after the installation of the element 1 as a casting. In this case, the floor drain assembly is pre-assembled and the lead-through hole is filled with power when the bathroom floor is cast. The floor drain is installed here in the same way as in other construction methods. Fig. 20 4 further shows one previously known floor drain arrangement 21 in the lower bathroom.

In addition to the above, the present invention has other embodiments. The central tube 5 can be placed eccentrically with respect to the well housing 4, and the well water trap can be formed in a manner other than that described above. Various water trap structures are well known in the art. The central tube 5 may be a fixed length tube which is cut to a suitable length when installed. The barrier plate 14 30 can be fixed to the lower surface of the hollow core plate 11, to secure its position by gluing, screws or other fastening means. The seams and joints of the arrangement can be sealed with glue or sealant. The floor well can be located elsewhere than in the middle of the element, but the floor elevation on the sides of the walls due to the necessary overturning can be minimized if the well is placed in the center of the floor 7 89295. The floor drain according to the present invention can be used elsewhere than as a floor drain for prefabricated bathrooms.

Claims (8)

1. For a floor drainage device for the hydration device and, in particular, for a prefabricated bathroom element (1) intended for a floor well and its penetration equipment, comprising - a passage pipe (5), which constitutes a drainage channel for passing the drainage device through a heel in the structure , for example, a heel plate (11), 10 below the element (1), and - a seat (4) for the floor well, comprising a coupling device for the feed pipe (5), characterized by - a barrier plate (14) which can be arranged around the feed pipe (5) to support the tube in the correct position in the feed opening by pressing the latch plate (14) surrounding the tube against the lower side of the structure below the element in such a manner that the latch plate (14) closes the hole in the latch plate (11) only on the lower side of the latch plate (11) and leave the housing completely free on the upper side of the latch plate (11), and - seals (15) provided at clutch areas between the floor well seat (4) and the lead-in pipe (5) and constitutes a sliding seat and enables the arrangement of the seat (4) at the end of the pipe at the desired height and seals the coupling area between the floor-well seat (4) and the lead-pipe (5). Floor well and its guiding equipment according to claim 1, characterized by means (20, 23), which seal the joint between the seat (4) and the floor (3) of the element (1) and install the seat (4) at a suitable height in relation to the floor. 3. A floor well and its guiding equipment according to claim 1, characterized in that the lead-through tube (5) is a telescopic tube. 4. A floor well and its guiding equipment according to claim 1, characterized in that the through-pipe (5) is a fixed-length pipe. 5. A floor well and its guiding equipment according to claim 1, characterized by a frame (18) arranged 15. an opening for the floor well intended in the floor (3) of the element (1) and comprising a seal and the counter surfaces connected to the actuators. A method of mounting a floor well to a prefabricated bathroom element (1) according to any preceding claim, such that the well's drainage device passes through the structure below the element, and in which the hole in the underlying structure is sealed by pouring concrete into the hole from above. Characterized in that - the floor duct's through-pipe is supported by a circumferentially arranged locking plate (14) in a heel 30 made in the structure (11) below the element by pressing the locking plate against the lower side of this structure (11), the upper side of the barrier plate (11) is cast a concrete layer which does not extend to the level of the end of the lead-pipe and seals the lead-through (5) and seals the penetration, and that - the floor well's sate (4) after mounting of the element (1) is arranged at the end of the feed tube (5). 7. A method according to claim 6, characterized in that the barrier plate (14) is fixed by means of some fastening method to the lower surface of the structure under the element (1). 8. A method according to claim 6, characterized in that the barrier plate (14) is supported by a sleeve in an angular part of the drain pipe against the lower surface of the structure (11) below the element (1).