Floor inlet with odour seal

Abstract

The floor drain (17) comprises an inlet pot (18), a horizontal outlet (19), and a trap (1) comprising an inlet nozzle (3) with an inlet opening (6), an outlet nozzle (4) connected to the horizontal outlet (19) and sealed against the outlet (19) by a gasket (21), and an intermediate piece (5) connecting the inlet nozzle (3) and outlet nozzle (4). To prevent the trap from running dry, for example, due to a leak in the gasket (21), the floor drain (17) according to the invention has an overflow pot (2) into which the inlet nozzle (3) of the trap (1) projects, thus forming a barrier against liquid.

Description

[0001] The invention relates to a floor drain with an inlet pot, a horizontal drain and an odor trap.

[0002] A trap is used to seal off the odor of a floor drain. Floor drains are used particularly in such rooms in the food, chemical, or pharmaceutical industries. They drain liquids from the room, particularly through a drainage channel. The liquid to be drained is poured into the inlet cup and from there flows into the trap, which has an inlet opening protruding into the inlet cup. The trap is connected to the drain, so that the liquid ultimately flows into the drain and, via this, into a sewer. The trap prevents gas exchange between the sewer and the room. This prevents odors from the sewer from entering the room through the drain.

[0003] To prevent gas exchange, the odor trap is designed to form a so-called barrier. The barrier ensures that liquid poured into the floor drain does not completely drain through the odor trap. The liquid that has not completely drained away is referred to as the liquid reservoir or liquid barrier. Furthermore, the odor trap is designed so that its inlet is located below the surface of the liquid that has not completely drained away. This means that the liquid barrier blocks gas from the sewer system from returning to the room. Typically, the odor trap forms the barrier together with the inlet pot. This means that the liquid reservoir forms in the inlet pot. In order for the liquid reservoir to form, the odor trap must be sealed against the drain.Otherwise, the liquid would flow past the odor trap and no liquid reservoir would form.

[0004] Both floor drains where the drain is connected vertically to the inlet pot and floor drains where the drain is connected horizontally to the inlet pot are equipped with odor traps.

[0005] EP 4 102 000 A1 relates to such a floor drain with an inlet and a horizontal drain, which has a plug-in odor trap with a closure body and a through-channel. The odor trap is intended to be particularly easy to manufacture. The closure body is tubular, and the through-channel has a barrier for liquid from the inlet. The barrier has at least one overflow wall connected to the inner wall of the tubular closure body.

[0006] As previously explained, such a trap relies on a seal to seal it off from the drain so that the liquid reservoir can form. However, to comply with hygiene standards in the food industry, for example, a trap must be designed to ensure that the liquid reservoir remains intact even if the seal fails.

[0007] Based on this, the invention is based on the object of providing an odor trap for a floor drain with a horizontal outlet that meets hygiene requirements.

[0008] According to the invention, this object is achieved by a floor drain with an inlet pot, a horizontal drain, and an odor trap. Advantageous embodiments are the subject of the dependent claims and the description, as well as the figures.

[0009] Unless otherwise stated, the following description and claims refer to an assembled state in which the individual components of the odor trap are assembled and inserted into the floor drain. Location and direction references such as "top," "bottom," "vertical," "horizontal," "inside," "outside," etc., also refer to this assembled state, with the sewerage system located at the bottom, a floor into which the drain pot is inserted defining a horizontal plane, and the vertical direction running from top to bottom.

[0010] The floor drain according to the invention with an inlet pot, a horizontal drain and an odor trap, which has an inlet nozzle, an outlet nozzle which is connected to the horizontal drain and is sealed with a seal against the drain, and an intermediate piece which connects the inlet nozzle and the outlet nozzle, is characterized in that the inlet nozzle of the odor trap forms a barrier for a liquid with an overflow pot.

[0011] The floor drain is designed to allow liquid to flow from a room in which it is installed into the sewer system located beneath the room. For this purpose, the floor drain has an inlet bowl, into which the liquid first enters. The liquid flows into the sewer system via the outlet. In this case, the outlet is connected horizontally to the inlet bowl.

[0012] According to the invention, for the liquid to flow from the inlet pot to the drain, it must flow through the odor trap. The odor trap, in turn, has an inlet nozzle, into which the liquid first enters. From the inlet nozzle, the liquid flows into the intermediate piece, to which the outlet nozzle is connected. The outlet nozzle is connected to the drain. From the outlet nozzle, the liquid flows into the drain. The outlet nozzle is sealed from the drain, so that the liquid can only enter the odor trap and from there into the drain via the inlet nozzle.

[0013] To prevent gas exchange between the room and the sewerage system, the inlet nozzle and the overflow pot form a barrier. The overflow pot is closed. As soon as liquid enters the inlet pot, it collects in the overflow pot. The liquid collecting in the overflow pot is also called a liquid reservoir. The inlet nozzle protrudes into the overflow pot so that the inlet opening is located in the overflow pot. As soon as the liquid in the overflow pot has reached a sufficiently high level, the inlet opening of the inlet nozzle is below the surface of the liquid. At this point, the inlet nozzle also contains at least some liquid. This liquid, which is in the overflow pot and the inlet support, prevents gas exchange between the room and the sewerage system. It is also called a liquid reservoir.The arrangement of the overflow pot and the inlet nozzle extending into the overflow pot thus forms the barrier. If more liquid is added, causing the liquid level to rise even further, the liquid can overflow into the drain via the intermediate piece and the adjacent outlet nozzle. When no more liquid is added, sufficient liquid remains in the overflow pot to ensure that the inlet opening of the inlet nozzle is below the liquid surface. The liquid barrier, which prevents gas exchange between the room and the sewer system, is therefore maintained.

[0014] The advantage of the inventive design of the floor drain with a odor trap and an overflow pot is that the barrier is formed by the overflow pot and the barrier, rather than, as is usual, by the odor trap and inlet pot. The liquid barrier is therefore maintained even if the seal between the drain and the outlet nozzle is damaged or otherwise no longer functional. The barrier is therefore not dependent on the sealing effect of the seal. This property leads to a longer service life of the odor trap. Furthermore, this property means that a floor drain with an odor trap and overflow pot according to the invention meets hygiene requirements.

[0015] According to one embodiment of the invention, the floor inlet is characterized in that the barrier is formed in the inlet pot.

[0016] In this design, the blocking element, and thus also the overflow pot and inlet nozzle, are located within the inlet pot of the floor drain. The overflow pot and inlet nozzle are therefore not located within the drain. The advantage of arranging the overflow pot and inlet nozzle within the inlet pot is that it allows for particularly simple installation.

[0017] According to one embodiment of the invention, the floor drain is characterized in that the odor trap and the overflow pot are two-part.

[0018] The overflow pot and the remaining odor trap are designed as separate components that can be manufactured independently of each other. They can then be inserted together into the floor drain to form the barrier. This two-part design simplifies production.

[0019] According to one embodiment of the invention, the floor drain is characterized in that the odor trap has holding elements and the overflow pot has fastening elements which cooperate with the holding elements in such a way that the odor trap can be locked and connected to the overflow pot.

[0020] The overflow pot and the odor trap can be connected using the fastening elements and the retaining elements. The retaining elements and fastening elements are designed so that the overflow pot can be detachably connected to the odor trap. For example, the fastening elements can be a flange with grooves, and the retaining elements can be corresponding hooks on the odor trap that can grip the flange. The hooks can be pushed onto the flange through the grooves. The flange can then be moved relative to the hooks so that the flange is gripped by the hooks. The overflow pot and odor trap are then locked together.

[0021] The overflow pot and odor trap can be locked together with the retaining elements and fastening elements outside the overflow pot, and the combined unit can be inserted into the floor drain to achieve the arrangement according to the invention. Removal from the floor drain is also possible in this way. Consequently, assembly and disassembly are simplified.

[0022] According to one embodiment of the invention, the floor inlet is characterized in that the inlet nozzle is enclosed by a side wall of the overflow pot and an inlet opening of the inlet nozzle is arranged above a base of the overflow pot.

[0023] The overflow pot has a continuous side wall. The bottom edge of the side wall is connected to the overflow pot's base, which is continuously connected to the side wall. Thus, the side wall and base form a liquid-tight unit that can be filled with liquid.

[0024] The side wall surrounds the inlet nozzle, at least partially enclosing it. The inlet nozzle thus extends into the overflow pot. The inlet opening of the inlet pot, from which liquid flows into the inlet nozzle and then into the intermediate piece, is located above the ground. This leaves a gap between the inlet opening and the ground. As soon as liquid accumulates in the overflow pot and the liquid level is higher than the distance between the inlet opening and the ground, the liquid also accumulates in the inlet pot. This creates a liquid seal that prevents gas exchange between the space and the sewer system.

[0025] A suitable selection of the distance and cross-sections of the surfaces bounded by the side wall and the inlet opening determines the desired absorption volume of the odor trap. This means that as much liquid as desired can flow through the odor trap per unit of time.

[0026] According to one embodiment of the invention, the floor inlet is characterized in that the inlet nozzle and the overflow pot each have a main direction of extension along a longitudinal axis which is oriented perpendicular to the barrier template

[0027] The barrier is formed by the interaction of the overflow pot and the inlet nozzle. The barrier allows a corresponding water reservoir to form, preventing gas exchange between the room and the sewer system. The water reservoir, together with the overflow pot and the inlet nozzle, forms a liquid barrier. The liquid surface of the liquid barrier is oriented perpendicular to gravity. The liquid surface defines the orientation of the barrier, with the orientation of the barrier corresponding to the orientation of the liquid surface.

[0028] Both the inlet nozzle and the overflow pot are elongated, so they have a main direction of expansion. These can be cylindrical or cuboidal, for example. A pyramid shape is also possible. The main directions of expansion of the inlet nozzle and the overflow pot are oriented perpendicular to the barrier and thus also to the surface of the liquid reservoir. The inlet nozzle therefore protrudes perpendicularly into the liquid reservoir, and the side walls of the overflow pot are also aligned perpendicular to the surface of the liquid reservoir. With an appropriate design, the surface of the liquid reservoir can also be oriented parallel to the base of the overflow pot. Such a geometric arrangement enables the largest possible absorption volume and the formation of a uniform flow within the overflow pot and the inlet nozzle.

[0029] According to one embodiment of the invention, the floor inlet is characterized in that the inlet nozzle and the overflow pot are each cylindrical.

[0030] The basic shape of the inlet nozzle and overflow cup is cylindrical. This means that the inlet nozzle and overflow cup do not have to be shaped like a perfect cylinder. They can also have recesses or bulges, for example, that serve to accommodate a seal or to form retaining elements.

[0031] According to one embodiment of the invention, the floor inlet is characterized in that the holding elements and the fastening elements are designed such that the odor trap and the overflow pot are locked together by rotating the overflow pot relative to the longitudinal axis of the inlet nozzle.

[0032] If the overflow pot and inlet nozzle are designed to be cylindrical, it is particularly easy to provide several retaining and fastening elements along the circumference of the overflow pot and inlet nozzle, some of which can also be continuous over the circumference. If the overflow pot and inlet nozzle are cylindrical, at least their basic shape is rotationally symmetrical. By rotating the base body and inlet nozzle, the retaining and fastening elements are then moved relative to each other so that they engage with each other, thus locking or releasing them. Such locking by rotating is particularly easy to implement during assembly.

[0033] According to one embodiment of the invention, the floor inlet is characterized in that the outlet nozzle projects into the drain.

[0034] The outlet nozzle is designed so that its outlet opening is located in the drain. The part of the outlet nozzle that extends into the drain can also partially touch the drain. This allows the odor trap to be secured in the drain.

[0035] According to one embodiment of the invention, the floor inlet is characterized in that the seal is an O-ring which is held in a circumferential sealing bead of the outlet nozzle.

[0036] The seal is designed as a standard O-ring, located between the inside of the drain and the outside of the outlet nozzle. It is elastic and made of rubber, for example. This prevents liquid from seeping between the outlet nozzle and the inside of the drain. This ensures that liquid poured into the floor drain must pass through the inlet nozzle into the odor trap and finally flow through the outlet nozzle into the drain. O-rings are easy to install and inexpensive to purchase.

[0037] To prevent the O-ring from being stripped or damaged during installation, the outlet fitting has a corresponding circumferential groove. The O-ring is positioned within the groove and is thus held in place by it. This simplifies installation.

[0038] According to one embodiment of the invention, the floor drain is characterized in that the odor trap has a handle.

[0039] The handle allows the trap to be easily removed from the floor drain after it has been secured in the floor drain. The handle can extend from the intermediate piece or from the inlet nozzle.

[0040] According to one embodiment of the invention, the floor inlet is characterized in that the floor inlet has a sludge trap.

[0041] The sludge trap is located above the odor trap and connected to the inlet pot. Its purpose is to catch coarse contaminants that enter the overflow pot. These could otherwise damage the odor trap and / or the overflow pot.

[0042] The invention will be further explained below using an exemplary embodiment illustrated in the attached drawings. In the drawings: Fig. 1: A perspective view of the odor trap and overflow pot; Fig. 2: A side view of the floor inlet, the odor trap, and the overflow pot; Fig. 3 a shows a top view of the odor trap and the overflow pot in an unlocked state; Fig. 3 b shows a top view of the odor trap and the overflow pot in an unlocked state; Fig. 4 a shows a perspective view of the odor trap and the overflow pot in an unlocked state; Fig. 4 b shows a perspective view of the odor trap and the overflow pot in an unlocked state.

[0043] Fig. 1 shows the odor trap 1 and the overflow pot 2 in a perspective view. The overflow pot 2 is shown separately from the odor trap 1. This means that the overflow pot 2 and the odor trap 1, which are made in two parts, are not connected to each other.

[0044] The odor trap 1 comprises an inlet nozzle 3, an outlet nozzle 4, and a connecting intermediate piece 5. The inlet nozzle 3 has a downwardly oriented inlet opening 6 through which liquid can enter the inlet nozzle. The liquid then flows through the intermediate piece 5 to the outlet nozzle 4, which is oriented perpendicular to the inlet nozzle 3 and thus horizontally aligned. Both the inlet nozzle 3 and the outlet nozzle 4 have a cylindrical basic shape.

[0045] The outlet nozzle 4 has a circumferential sealing bead 7 into which an O-ring seal can be inserted, which is not shown in this illustration. Furthermore, a hook-shaped handle 8 is attached to the intermediate piece. The handle 8 allows the odor trap 1 to be lifted or pulled. Furthermore, three holding elements 9 are arranged on the inlet nozzle 3 in its upper area, at the transition to the intermediate piece, evenly distributed around the circumference. These holding elements 9 protrude perpendicularly from the outer wall of the inlet nozzle 3 and each have a vertically oriented guide hook 10 and a support hook 11.

[0046] The overflow pot 2 has a cylindrical basic shape. The side wall 12 is flush with the base 13 at the bottom and has a flange 14 on the top that runs around the entire circumference. The side wall 12 is manufactured by deep drawing, with a rounded transition area between the side wall 12 and the base 13. The flange 14 also has three locking grooves 15 evenly distributed around the circumference, as well as locking lugs 16 that are offset by 60° from the locking grooves 15 and project horizontally from the flange.

[0047] The guide hooks 10 serve to keep the side wall 12 of the overflow pot at a constant distance from the inlet nozzle 3, provided the overflow pot 3 is pushed over the inlet nozzle 3. The support hooks 11 are designed to correspond with the locking grooves 15 and the locking lugs 16 in order to enable, together with the flange, a releasable locking of the overflow pot 2 relative to the odor trap 1.

[0048] Fig. 2 shows the floor inlet 17 with the odor trap 1 inserted and the overflow pot 2 attached to it. The floor inlet 17 has a vertically oriented and, in its basic form, cylindrical inlet pot 18. A horizontally running drain 19 adjoins the inlet pot 18. Furthermore, the floor inlet 17 has a sludge trap 20 arranged above the odor trap 1. The sludge trap 20 has holes through which liquid can enter the floor inlet 17, but which simultaneously prevent coarse impurities from entering the floor inlet 17.

[0049] The odor trap 1 extends with its outlet nozzle 4 into the drain 19. The O-ring 20 seals the outlet nozzle 4 against the inner wall of the drain 19. Liquid poured into the floor inlet 17 cannot thus flow past the odor trap 1 into the drain 19. Instead, it collects in the overflow pot 2 and the inlet pot 18.

[0050] It can be seen that the inlet opening 6 is located above the base 13 of the overflow pot 2. As soon as the poured liquid reaches a sufficient level in the overflow pot 2, the inlet opening 6 is below the liquid surface. The liquid in the overflow pot 2 then forms a liquid barrier. The arrangement of the overflow pot 2 and the inlet nozzle 3 projecting into the overflow pot 2 forms a barrier. The liquid in the overflow pot 2 and projecting into the inlet nozzle 3 prevents gas from the sewer system, which is connected to the drain line 19, from entering a space located above the odor trap 1 or floor inlet 17.

[0051] It can also be seen that the side wall 12 is guided by the holding element 9, in particular by the guide hook 10, so that there is a uniform distance between the side wall 12 and the inlet nozzle 7 over the circumference. Furthermore, it can be seen that the flange 14 is guided by the support hook 11, so that there is a defined distance between the base 13 and the inlet opening 6.

[0052] Fig. 3 a) und Fig. 3 b) show the odor trap 1 and the overflow pot 2 each in a top view. They differ in that the overflow pot 2 is in Fig. 3 b) opposite Fig. 3 a) is shown rotated by 60° around the longitudinal axis of the overflow pot 2 relative to the odor trap 1. This changes the position of the locking grooves 15 and locking lugs 16 relative to the holding elements 9. In Fig. 3 a) the locking lugs 16 touch the holding elements 9. The bottle 14 is enclosed by the holding element 9, so that a vertical movement between the odor trap 1 and the overflow pot 2 is prevented. The overflow pot 2 is locked. By turning the overflow pot, which in Fig. 3 b) As shown, the overflow pot 2 is rotated relative to the odor trap 1 such that the locking grooves 15 are arranged near the retaining elements 9. Consequently, the retaining elements 9 no longer encompass the flange 14. The overflow pot 2 is thus unlocked, so that the overflow pot 2 and the odor trap 1 can be separated.

[0053] Fig 4 a) und Fig. 4 b) show again the odor trap 1 and the overflow pot 2 and correspond to the same positions shown in Fig. 3 a) or Fig. 3 b) are shown. From these figures, the position of flange 14, locking grooves 15 and locking lugs 16 relative to the holding elements 9 is particularly clearly visible. It is also evident that a vertical relative movement between the odor trap 1 and overflow pot 2 is only possible if the locking grooves 15 are arranged at the respective locations of the holding elements 9, as in Fig. 4 b) is shown. Bezugszeichen

[0054] 1Odor trap 2Overflow pot 3Inlet nozzle 4Outlet nozzle 5Intermediate piece 6Inlet opening 7Sealing bead 8Handle 9Holding element 10Guide hook 11Support hook 12Side wall 13Base 14Flange 15Locking groove 16Locking lug 17Floor inlet 18Inlet pot 19Drainage 20Sludge trap 21O-ring

Claims

1. Floor drain (17) with an inlet pot (18), a horizontal drain (19) and an odor trap (1) having an inlet nozzle (3) with an inlet opening (6), an outlet nozzle (4) connected to the horizontal drain (19) and sealed with a seal (21) from the drain (19), and an intermediate piece (5) connecting the inlet nozzle (3) and the outlet nozzle (4), characterized in that the inlet nozzle (3) of the odor trap (1) forms a barrier for a liquid with an overflow pot (2).

2. Floor inlet (17) according to the previous claim, characterized in that the barrier is formed in the inlet pot (18).

3. Floor inlet (17) according to one of the preceding claims, characterized in that the odor trap (1) and the overflow pot (2) are two-part.

4. Floor inlet (17) according to the previous claim, characterized in thatthe odor trap (1) has holding elements (9, 10, 11) and the overflow pot has fastening elements (15, 16) which cooperate with the holding elements (9, 10, 11) such that the odor trap can be locked and connected to the overflow pot.

5. Floor inlet (17) according to one of the preceding claims, characterized in that the inlet nozzle (3) is enclosed by a side wall (12) of the overflow pot (2) and the inlet opening (6) of the inlet nozzle (3) is arranged above a base (13) of the overflow pot (2).

6. Floor inlet (17) according to one of the preceding claims, characterized in that the inlet nozzle (3) and the overflow pot (2) each have a main direction of expansion along a longitudinal axis which is oriented perpendicular to the barrier template 7. Floor inlet (17) according to the previous claim, characterized in that the inlet nozzle (3) and the overflow pot (2) are each cylindrical.

8. Floor inlet (17) according to claim 4 and one of claims 5 to 7, characterized in that the holding elements (9, 10, 11) and the fastening elements (15, 16) are designed such that the odor trap and the overflow pot are locked together by rotating the overflow pot relative to the longitudinal axis of the inlet nozzle.

9. Floor inlet (17) according to one of the preceding claims, characterized in that the outlet nozzle (4) protrudes into the discharge line (19).

10. Floor inlet (17) according to one of the preceding claims, characterized in that the seal is an O-ring (21) which is held in a circumferential sealing bead (7) of the outlet nozzle (4).

11. Floor inlet (17) according to one of the preceding claims, characterized in that the odor trap (1) has a handle (8).

12. Floor inlet (17) according to one of the preceding claims, characterized in that the bottom inlet (17) has a sludge trap (20).

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