FI60051C - ANALYZING VIDLRLNNAR - Google Patents

Description

- ^ -: .1 ANNOUNCEMENT, Λ Λ _ ^ | Ϊα ^ (11) UTLÄCGNINGSSKRIFT 600 51 C ^ \ · αί · -η: ii, ii ~~ jl ^ ^ (51) K ».ik.3 / int. ci.3 E 03 F 5/04 ENGLISH —Fl N LAN D (21) P «t * nttlh» k # mu «- P« * nc * i »* eiw» nt 76l062 (22) H »k * ml * ptlvi - AfMÖknlngtdag 20.04.7c '(23) Alkupitvt — Gittlgh * tsd * (20.0ii.76 (41) Tullut | ulkiMksl - Blivlt offantllg 2 ^ 7g PMMMtl- (a rakittarihallHu ·

Patent · och registerstyrclsen Amttktn utl »jd och utUkrtfun publmrad C7 5i (32) (33) (31) Pyydetty Muoikuut — B * jird prlodtet 23.05.75

Sweden-Sweden (SE) 7505890-9 (71) Bengt Spanberg, 275 00 Sjöbo, Sweden-Sverige (SE) (72) Eric Idsäter, Sjöbo, Sweden-Sverige (SE) {7I +) Ruska & Co (5I) Sewer The present invention relates to a device in sewers with an inlet part and at least one sewer pipe protruding therefrom. Sewers of the type described in the introduction are used as drains in wet rooms of buildings. To allow the use of such wells in modern buildings with thin beam structures and when modernizing older buildings, it is necessary that the manholes be designed to be low in structure. It is further required that the wells be easy to clean and, in addition, simple to manufacture, for example by injection molding in the case of plastic films. In addition, in certain contexts, there is a need to use combined orifice and odor trap wells that meet said requirements.

Sewers of the type usually described in the introduction must have a certain minimum closing water trap height, usually 50 mm, in order to reduce the risk of the water trap emptying due to the occasional vacuum in the sewer line. As a result of this minimum closing water trap height requirement, there has been a problem in reducing the overall height of the wells. Only recently has it been possible to reduce the total height to less than 125 mm by dividing the inlet part of the well into a water trap and the series connection of the water trap parts formed.

2 60051

However, until now, it has not been possible to achieve a very large reduction in the overall height of the manholes while meeting the requirements of ease of cleaning, simple manufacturability, and a combined manhole that acts as a drain and odor trap.

It is an object of the present invention to provide a very shallow sewer that is easy to clean, simple to manufacture and available as either a drain or an odor trap. This object is achieved according to the invention mainly in that at least one water trap insert is mountably fitted in its drain pipe, the inlet part having at least one space shaped in addition to flow to allow the water trap insert to be moved in and out of the drain pipe through the inlet part.

As a result of the well according to this feature of the invention, ideal flow conditions have been obtained in the inlet section, since it does not have to have any flow obstacles but instead can be kept completely free. Maintaining the requirement that the minimum closing height of the water trap is 50 mm, the total length of the drain pipe nozzle or its parts can be 75 ~ 80 cm (finding the space required for a sewer pipe nozzle of this size does not present any problem) and the inlet part, i.e. the well can have little greater overall height than the diameter of the sewer pipe. In addition, the water trap becomes easy to install (and remove for cleaning purposes) due to the fact that the inlet space allows the inner part to be led through the inlet inlet down into the drain pipe plug (and taken out of the well through this space to clean it). In addition, the well will simply be fabricated because there are no water trap walls or other water trap parts in its body and the well body can be used as a drain hole without any special modification measures. The well used as a drain hole can of course obtain an odor-removing function by installing an existing water trap insert inside it.

The invention will now be described in more detail with reference to the accompanying drawings, in which Figure 1 shows a vertical section of a sewer with a device according to the invention, Figure 2 shows a vertical cross-section of a sewer with a device according to a first alternative embodiment of the invention; parts and Fig. 4 shows parts of a sewer equipped with a device according to a third alternative embodiment.

In the drawings, reference numeral 1 denotes a floor drain type sewer having an inlet part 2 and a drain pipe sump projecting laterally therefrom. The inlet part 2 of the well is provided at its inlet with known abutment surfaces 5 for a fixing ring (not shown) (not shown) or to the 6 sides of a similar well lip. A strainer (not shown) is usually placed in the clamping ring, which is made in a known manner to form the inlet part 2 of the lid in the flow-through space 7. The inlet part 2 and the drain pipe nozzle 3 are usually made in one unit of either metal or plastic.

The sewer 1 according to the invention can be made very low in height, will be easy to clean, simple to manufacture and can be used as a drain or odor trap and can be easily changed from one type to another. In addition, the well will allow for uninterrupted flow through those parts of it where flow disturbances can mean very large malfunctions. For this purpose, the well is in principle provided with at least one water trap insert 8 fitted to its drain pipe connection 3, the inlet part 2 having at least one space (flow-through space 7) formed in addition to flow to allow the water-lock insert 8 to move in and out of the drain pipe 3 through section 2.

By fulfilling these features, a very low sewer can be obtained, namely the total height of the inlet part 2 can be made such that it only slightly exceeds the height (usually the diameter) of the sewer pipe nozzle 3. Although it is necessary to slightly increase the height (diameter) of the sewer pipe nozzle 3 relative to the drains of known wells in order to meet the 50 mm closing water trap height, such an increase only means the utilization of the previously unused space next to the inlet part 2. Thus, for example, the total height (maximum diameter) of the water trap inner portion 8 can be made 75 mm while maintaining the requirements of a 50 mm closing water trap height. Equipping the well with an inlet part whose height is determined by the height of the manhole (the height of the manhole is usually about 20 nun) and which is in a plane immediately above the drain pipe nozzle 3, provides a manhole with a total height of 95 mm, i.e. a very low well .

Due to the fact that the flow space 7 of the inlet part 2 is completely free, the well provides improved flow properties. Due to the fact that said space 7 is further formed in a certain way, the water trap unit 8 can be installed and removed through the well inlet 4, which means that the cleaning operations will be simple to perform and it will be simple to change the well from the drain to an odor-sealing well. Thanks to the fact that the well can be manufactured without fixed internal water trap walls or the like, the manufacturing method is substantially simplified.

Figure 1 illustrates by way of example a very simple embodiment of a manhole 1 and a water trap insert 8. As can be seen from this figure, the inlet part 2 of the well 1 has a completely unobstructed space 7 · The space 7 is narrowest at its lower part 9 »from which the sewer pipe socket 3 projects laterally. The narrowest part 9 of the space 7 is wider than the largest width of the water trap inner part 8. As a result, the water trap insert 8 can be lowered to the part 9 of the space 7 and then kept oriented for installation in its drain pipe 3. In the drain pipe 3 closest to the inlet part 2 there is a part 10 with a height higher than the height behind the nozzle 11. This means that the sewer pipe nozzle 3 reaches the necessary height or diameter required to fit the water-lock insert 8 and also for the necessary smaller height or diameter for connection to the pipe of the sewer system (not shown). A wall portion 12 forming a transition pipe drain. 3 between the upper part 10 and the lower part 11, forms a natural response for the water trap inner part 8, i.e. prevents the water trap part 8 from moving too far when installed in its drain pipe 3.

The water trap inner part 8 according to the illustrated embodiment has two walls 13 and 14 intended to form a special water trap space 15 in its sewer pipe 3- The front wall 13 is formed to directly or indirectly join the inner side of the sewer pipe 3 space 10 from which the lower edge 16 differs. with a lower flow opening 17 through which the space 7, 9 of the inlet part 2 communicates with the water trap space 15. The rear wall 14 is shaped to directly or indirectly join the inner side of the space 10 of the sewer pipe nozzle 3 except for the upper edge part 18. This upper edge part 18 forms with said inner side an upper flow opening 19 through which the water vehicle housing 15 communicates with the sewer pipe connection 11.

The walls 13, 14 are fixedly connected to each other via a connecting rod 20 so that the lower edge portion 16 of the front wall 13 and the upper edge portion 18 of the rear wall 14 are at different levels, resulting in a water trap space 15. If the level difference between these edge portions 16, 18 is 50 mm, water trap space 15 with a height of 50 mm.

The walls 13, 14 are preferably turned in an arc-like manner so that the edge portions 16, 18 form the rear part of the wall 13, 14, respectively. Further, the front side of the front wall 13 joins the inner side of the inlet part 2 and preferably forms a softly merging extension of said inner side facing downwards. As a result of this wall design, very advantageous flow properties are provided in both the inlet part 2 and the water trap inner part 8.

Due to the design of the water trap insert 8 exemplified above, it can be installed and removed with difficulty as a single unit. This means that the water trap insert will be very easy to install in the correct position and will have the necessary stability of its components without particularly precise dimensioning.

As can be seen from the drawings, the wall portion 12 forms a stop for the rear wall 14 and due to the fact that this wall 14 extends upwards quite far inside the drain pipe nozzle 3, the wall forms a counterflow barrier, i.e. a barrier which prevents or impedes water through in the direction of the inlet part 2, penetration into the water trap space 15.

In order to provide a seal between the water-lock insert 8 and the inner side of the sewer pipe plug 3 and to attach the water-lock insert 8 to this inner side, for example, the water-lock insert 8 according to the selected design has walls 13 and. 14 passing grooves 21 and 22 for sealing rings 23 and 24. The depth of the grooves 21 and 22 is such that the portions of the sealing rings 23 and 24 are outside the edges of the walls 13 and 14, possibly the groove 21 in the lower edge portion 16 of the wall 13 and the groove 22 in the upper edge portion 18 of the wall 14 having a greater depth so that along the sealing rings 23 and 24 these parts passing through the 60051 edge portions are protected inside the edge portions. The sealing rings 23 and 24 may preferably be of an elastic material, for example a rubber material, and have a somewhat compressed shape when resting against the inner side of the sewer pipe core. In addition to the sealing effect, such rings also provide a fastening effect between the water trap inner part 8 and the inner wall of the drain pipe nozzle 3.

However, it is often necessary to ensure a more serious attachment of the water seal insert 8 to its drain pipe 3. Such an attachment can be provided by The parts of such a locking device 25 are schematically illustrated in Fig. 4. According to the illustrated embodiment, the rear wall 14 of the water trap insert 8 has three seats 26 and the inner side of the sewer pipe plug 8 has three ribs 27 or the like. By guiding the water trap insert 8 so far into the drain pipe nozzle 3 that the seats are located at the rear part behind the ribs 27 and then rotating the water trap inner part 8, the parts of the locking device 25 can be made to engage each other. The water trap insert 8 can be removed in a simple manner by turning it in the opposite direction.

The cooperating parts 26, 27 of the locking device 25 may have oblique edges (not shown) so that these parts remain against each other by mutual friction. The cooperating parts 26, 27 may also have operating surfaces (e.g. planar edges associated with oblique edges) which allow the water trap insert 8 not to be loaded when it is in the operating position inside the drain pipe nozzle 3.

The water trap insert 8 may advantageously be made to have a plurality of water traps connected in series, as shown in Fig. 2. In series connection of a water trap in this way, it is necessary that the water trap parts communicate with each other above the water surface, which in the illustrated embodiment is achieved by an opening 28 in the wall 13. Also in this case, the water-lock inner part 8 is suitably formed by one unit so that all the walls are fixedly connected to each other by means of a connecting rod 20 or the like. Thanks to this embodiment, the water trap unit 8 can be easily installed and removed.

The device according to the invention has been described above for use in a sewer with a side-directed sewer pipe connection. However, while maintaining the said advantages, the device according to the invention can be used in sewers with several side-directed sewer pipes or in sewers with one downward-facing sewer pipe.

Embodiments of the well and the water trap insert not shown in more detail here may be used within the scope of the following claims. Thus, for example, it is possible to omit the sealing rings described and to shape the water trap insert with relatively high accuracy so that it is closely associated with the inner side of the sewer pipe or with booms or the like projecting from this inner side. Alternatively, it is possible to provide the water trap insert with, for example, flexible tongues intended to engage, for example, corresponding recesses in the drain pipe connection. It is also not necessary to permanently connect the walls belonging to the water trap interior, but they can be installed and removed separately. The stop in the water-lock inner part does not have to be formed by the wall part, but can be formed by a separate spout, especially if the drain pipe nozzle has a constant height over its entire length or for most of it.

To ensure that the water trap insert can only be installed when it remains properly oriented on its locking walls, the water trap insert may be provided with at least one groove or the like cooperating with a rib or the like projecting from the inside of the drain pipe cap.

To facilitate rotation of the water trap insert, it may have one or more grooves or the like to form sockets for the installation and removal tool, which in its simplest form may be a screwdriver.

Claims (12)

Device at sewage wells having an inlet portion and at least one from this protruding sewage pipe nozzle, characterized in that at least one water leakage insert (8) is mountably mounted in the drainage pipe plug (3), wherein the inlet portion (2) has at least one space (7). ), which is designed to permit, in addition to throughput, the displacement of the water leakage insert (8) to and from the interior of the drain pipe nozzle (3) via the inlet part (2). 2. Device according to claim 1, characterized in that the water leaking insert (8) has at least one pair of walls (13 throughflow openings (17, 19) to and from the water reading space (15) and partly with the exception of formed throughflow openings (17, 19) with sealing abutting against the drain pipe plug (3). 3. Device according to claim 2, characterized in that each wall (13, 14) has at least one sealing ring (23, 24) which extends around and respectively. wall (13, 14) extending along edges of the wall (13, 14). Device according to claim 3, characterized in that each sealing ring (23, 24) along the edge portions (16, 18) of the walls (13, 14) defining flow openings (17, 19) to and from the water reading space (15) lies within said edge portions (l6, 18). Device according to any one of the preceding claims, characterized in that the water leaking insert (8) is arranged in a drain plug compartment (10) which connects to the inlet part (2) and which has a greater height than the underlying parts (11) of the drain pipe plug (3). Apparatus according to any of the preceding claims, characterized in that the drain pipe butt (3) has at least one inner stop, which is arranged to constitute a stop for the displacement of the water drain insert (8) in the drain pipe butt (3). Device according to claim 5 or 6, characterized in that the stop is a wall part (12) which forms the upper part.