DK174324B1 - A fully integrated odour-guard for urinals avoiding the need for hosing. - Google Patents

Abstract

A urinal is constructed with an odour guard as an integral component. The odour guard is constructed around a conventional stench trap, where the mode of construction facilitates the easy cleaning and maintenance of the urinal and odour guard. The odour-guard can be taken apart, cleaned and reassembled.The odour guard is constructed in such a way that it cannot be damaged by hose water, and it is therefore difficult for urine spill to convey molecules from the liquid guard across the grid on the gully.<IMAGE>

Description

in DK 174324 B1

The invention relates to an odor barrier for a urinal without water rinse which prevents air from rising from the sewerage system, or to ascend odor nuisances resulting from organic decomposition of urine, the odor barrier being of the nature consisting of tubes arranged so that the walls of the tubes comprise barriers which retain a barrier fluid of lower weight-5 than urine from disappearing into the sewer network, the pipes at their arrangement forming a special water trap.

Urinals with odor barriers work without the use of rinsing water. Furthermore, the odor barrier is of the type consisting of three tubes arranged within one another in such a way that a residual amount of liquid is retained at all times. The residual amount of liquid forms a lock. This principle is known from several water locks in buildings' sanitary installations.

By using oil or other low density liquid as the filling or residual amount of liquid, barrier fluid, when an odor barrier of the said type 15 is incorporated into a urinal, the urinal becomes odorless. There are no gases from the sewer and old urine sinks to the bottom and settles under the barrier fluid.

The three pipes, which make up the odor barrier, are assembled into easily separable pieces. This allows the entire odor barrier and urine to be easily cleaned with a brush and rinse water.

20

In the known odor barriers of this kind, the construction of the odor barrier has been done in many ways. They also all build on the odor barrier during construction, which incorporates a principle with a water trap.

25 In a structure according to CH Patentschrift 606 646, the connection pipe is mounted on an extension piece from sewer pipe in a tapered fit with high tolerance requirements to ensure tightness.

When leaking, the odor barrier loses its filling fluid, thus eliminating the water-locking effect. If the water trap is to work with urine, the urinal will smell. This has ceased the effect.

A urinal with odor barriers of the type described may also lose its filling fluid by cleaning the urinal with flushing hose.

30 2 DK 174324 B1

Other basic types of odor barriers are structures on the basis of a waterlock structure constructed as a replaceable unit, most commonly referred to as a siphon. It is known in the same CH Patent 606 646 as well as in De 28 16 597 B1 and in WO 97/15735.

5 The use of siphon makes it difficult in practice to clean the urinal. Siphons are vulnerable to heavy soiling (vomiting, Cigarettes, etc.) as well as violence and vandalism. They are easy to clog with napkins and tobacco waste. At hotels, airports, and other places, it is costly to maintain urinals, where you have to periodically replace the many siphons that may still be usable because their fluid volume cannot be controlled.

10

Siphons are sealed to the sides of the urinal with large loose O-rings. In practice, these O-rings do not work, as it is difficult to control their correct and actual location.

An odor barrier according to the invention consists of three separable tubes in a concentric or eccentric structure, comprising a urinal with a tapered mouth, in which is mounted a plug with a level tube extending into a discharge tube mounted in a bore in a cover where the cover is in a cone-shaped abutment on the urinal.

The invention provides an odor barrier of the kind mentioned, which is constructed so that it can be easily maintained and cleaned. At the same time it is ensured that it always has the water lock effect in order and it is also flush safe. Periodic inspection consists of replenishing with blocking liquid and as needed cleaning with water and brush.

A preferred embodiment of an odor barrier according to the invention is where the seal between the 25 separable tubes, the urinal and the plug consists of a sealing ring or an adhesive, and that the seal between the plug and the level tube is constituted by a sealing ring. These special sealing rings are in suitable dimensions and number. Pipe joints with sealing rings provide a secure seal and at the same time allow for easy separation of the odor barrier. 1

If the urinal is blocked by vomiting or the like, the odor barrier's water trap parts are separated and all impurities are easily flushed into the sewer. After cleaning and reassembly, new blocking fluid is added.

3 DK 174324 B1

Liquids with a density lower than the density of water are used as blocking liquid. It can be water repellent oils. Due to a special structure with a relatively large area of barrier fluid relative to the area of urine and water in the discharge pipe, removal of oil by entraining the urine stream will be small. The urine enters the water trap chamber at the periphery of the cover. Here, a flow towards the discharge pipe starts at low speed due to the relatively large area at the large diameter, which allows the buoyancy liquid to return to the barrier layer instead of being ripped into the discharge pipe and into the sewer (see also Figure 3). .

The invention will be explained in more detail below with reference to the drawings, in which

Figure I shows the structure of an odor barrier in a urinal with pipe parts for water trap.

Figure 2 shows a cover for an odor barrier.

Figure 3 shows flow in a liquid section.

15

Figure 1 shows an odor barrier (1). The odor barrier is joined by a urinal (2), partially shown. The urinal (2) is mounted in a pipe (3) for connection to the sewer network. In the urinal (2), the lower part is formed as a conical mouth (4) which fits with the tube (3). The urinal (2) proceeds upwardly in a cone-shaped transition piece, an almost cylindrical piece 20 (6), a constriction (15), a cone-shaped abutment (14) and further into the urinal (2).

In the conical orifice (4), a plug (5) with a seal (12) is secured. The plug (5) is tapered similar to the mouth (4), whereby a clamping results in a stable joint.

In an alternative version, the plug (5) and the tapered mouth (4) are glued together to avoid the sealing ring (12) and the milling (23).

The plug (5) has a cylindrical bore (7) with a bottom stop (8). In the cylindrical bore (7) a groove (9) is formed for the inner sealing ring (10). A level tube (11) is mounted in the bore (7) of the plug 30 (5). The level tube (11) is guided by the bore (7) and the bottom stop (8), and the sealing ring (10) seals between the plug (5) and the level tube (11) while the seal (12) seals between the plug (5) and the tapered mouth (4). ). The construction of the three-tube odor barrier allows easy service.

4 DK 174324 B1

Exit pipes (17), level pipes (11) and seal rings (10) and (12) can be easily renewed in the case of standard dimensions.

5 The level tube (11) has a length so that the required height of the barrier fluid (19) can be obtained. This is fitted with a cylindrical side piece (6).

At the top, the odor barrier (1) is closed with a cover (13). The periphery of the cover (13) is cone-shaped, corresponding to the cone angle of the cone-shaped system (14). Holes (16) are provided on the cover (13) on the periphery. See also Figure 2, position (16), where the half holes (16) are seen from above.

In the cover (13) the discharge pipe (17) is arranged in a tight bore (18) which easily holds the removable discharge pipe (17).

15 When the odor barrier is collected, it is filled with barrier fluid in the water trap chamber (25) and when put into use, urine (20) settles at the bottom of the odor barrier (1) and up into the outlet tube (17) to the upper edge of the level tube (11). The fluids are separated due to differences in density and stand for the same reason with a level difference H (21) with the barrier fluid (19) at height T 20 (22).

The level tube (1 I) is fastened in the plug (5) and sealed with a sealing ring (10) so that it can be easily removed by necessary cleaning. If there is slight leakage around the seal (12) or the seal ring (10), the urine (20) disappears before the blocking oil (19).

Due to the holes (16) in the cover (13), Figure 1, the liquid is distributed over the entire bottom surface.

Therefore, there is a good possibility that the liquid rises from the urine (20) back to the blocking fluid (19), figure 1. 1 Due to the height T (22), decreasing blocking fluid will mean that less and less barrier fluid seeps into the level tube ( 11) to the sewer, and at a given residual amount the leakage will be impossible due to the design of the cover (13) and the height of the level pipe (11).

5 DK 174324 B1

The urine flows relatively slowly through the barrier fluid due to the small half holes in the periphery of the cover as shown in Figure 2. The water-repellent barrier fluid contributes to a low flow rate through the fluid.

5

The structure shown in Figures 1 and 2 is an example of a possible embodiment. All dimensions and their relationship may vary as needed in current applications. This applies to the diameter D of the odor barrier, the height T of the barrier oil, eccentricity L, between the slightly tapered side (6) of the odor barrier and the bore (18) of the outlet pipe (17). During use, the height T 10 (22) of the barrier fluid (19) will vary.

It is also established that the total area of half holes (16) in the cover (13) is smaller than the area between the discharge pipe (17) and the level pipe (11). This means that a bucket of water can be poured into the urinal without flushing the barrier fluid (19). At the same time, the large 15 amount of oil ensures that the urinal is safe from flushing.

Figure 3 shows flow in a liquid section where at the side (6) of the container is the flow area AAAA. The liquid flows more in the direction of the arrow (24) towards the center C-C of the level tube (11) under smaller and smaller area XXXX. Initially, the flow is 20 slow.

The urinal and odor barrier parts can be made of metal, steel, and plastic types of all kinds as required. 1

Claims (2)

6 DK 174324 B1 An odor barrier for a urinal without water rinse which prevents odor nuisance from rising from the sewerage system, or ascending odor nuisance resulting from organic decomposition of urine, the odor barrier being of the nature consisting of tubes arranged so that the walls of the tubes combined constitute barriers. restraining a barrier fluid (19) of lower density than urine (20) from disappearing into the sewer network, the pipes (6, II, 17) forming, in their arrangement, a special water trap designed as combined pipes, characterized by, consisting of three separable tubes (6, 11, 17) in a concentric or eccentric structure, comprising a urinal (2) with a conical mouth (4), in which is mounted a plug (5) with a level tube ( II) extending up into a discharge pipe (17) mounted in a bore (18) in a cover (13), the cover seated in a cone-shaped abutment (14) on the urinal (2). Odor barrier according to claim 1, characterized in that the seal between the several pipes (6, 11, 17), the urinal (2) and the plug (5) is constituted by a sealing ring (12) or an adhesive, and that the seal between the plug (5) and the level tube (II) are constituted by a sealing ring (10).