Outlet valve in a waterless urinal for avoiding the return of foul odors from the drainage

Abstract

The valve is applied in the industry of bathroom furniture, the industry of manufacturing urinals or dry urinals that do not drag waste through water. The valve provides a water seal that does not require dragging water; it is the urine itself that achieves the seal without the odor developed by the urine of the water seal returning to the users' space. A seal is provided by spheres avoiding the use of consumables, such as sealing oil, scent pads, among others. An outlet valve is provided, in a waterless urinal, towards the drainage, preventing the return of foul odors, including a hydraulic trap formed by a tank where a certain volume of urine is formed, a funnel that discharges the new urine into the bottom of the tank, and an upper valve where the seal is carried out by one or two spheres in their respective seats.

Claims

1. An outlet valve, in a waterless urinal, towards the drainage for preventing the return of foul odors comprising: a valve with a chamber having a bottom opening located at a bottom of the chamber and a lateral opening located at a side of said chamber so that a sphere simultaneously blocks said bottom opening and said lateral opening in a closed position preventing the return of gases from a drainage; and a hydraulic trap formed by a funnel and a tank, wherein said hydraulic trap is provided below the valve so that the funnel receives urine from said valve and discharges said urine into a bottom of said tank.

2. The outlet valve according to claim 1, further comprising an upper valve provided above said valve and including an upper chamber having a bottom opening located at a bottom of the upper chamber so that an upper sphere blocks said bottom opening of the upper chamber in a closed position preventing the return of gases from said drainage.

3. The outlet valve according to claim 2, wherein said chamber is hydraulically and pneumatically connected below said upper chamber preventing the return of gases from said drainage.

4. The outlet valve according to claim 2, wherein the upper sphere unblocks said bottom opening of the upper chamber in an open position allowing a flow of urine through said bottom opening in order to be received at said funnel.

5. The outlet valve according to claim 2, wherein the upper sphere unblocks said bottom opening of the upper chamber in an open position allowing a flow of urine through said bottom opening in order to be received at said chamber; and said sphere simultaneously unblocks the bottom opening and the lateral opening of the chamber in an open position allowing a flow of said received urine through said bottom opening of the chamber so that said received urine is received at said funnel.

6. The outlet valve according to claim 1, wherein the sphere simultaneously unblocks said bottom opening and said lateral opening of the chamber in an open position allowing a flow of urine through said bottom opening and said lateral opening in order to be received at said funnel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 illustrates an explosive or cutting view of the three-seal valve to prevent the return of foul odors in a waterless urinal, according to the object of the present invention.

(2) FIG. 2 illustrates the external appearance of the three-seal valve to prevent the return of foul odors in a waterless urinal, from FIG. 1.

(3) FIG. 3 illustrates a sectional view of the three-seal valve to prevent the return of foul odors in a waterless urinal, illustrated in FIGS. 1 and 2.

(4) FIG. 4 shows the detail of the height of the water seal of the three-seal valve to avoid the return of foul odors in a waterless urinal, illustrated in FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION

(5) As previously mentioned in the brief description of the invention, one of the preferred embodiments of the present invention consists of a three-seal valve to prevent the return of foul odors in a waterless urinal, in one of its preferred embodiments, the system has two types of seals. The first one is based on the formation of a column of liquid that retains the regression (back pressure) of foul odors coming from the pipe. The second one consists of mechanical seals being spheres which, by their own weight, seal off any foul odors which may be generated by the decomposing liquids contained in the liquid column. When the urine enters the cartridge, the spheres float by a difference in density allowing the liquid to pass into the water trap. As the urine is dislodged into the pipe, the spheres reseal maintaining a constant seal without foul odor.

(6) In another of the preferred embodiment, the three-seal valve to prevent the return of foul odors in a waterless urinal, object of the present invention consists of the hydraulic seal formed by the urine itself with a ball seal on the top part.

(7) This ball seal can consist of a chamber with a small ball that in its closed position rests on a horizontal seat, sealing the output gases generated in the lower chamber, consisting of a water trap.

(8) But another second preferred embodiment of the above-mentioned, consists of a chamber with a lower ball seat and a lateral opening. When the sphere is in closed position, it seals with the side opening and the lower opening, achieving a double seal.

(9) The detailed description will be based on the preferred embodiment illustrated in FIGS. 1 to 4.

(10) FIG. 1 illustrates an explosive or cutting view of the three-seal valve to prevent the return of foul odors in a waterless urinal, object of the present invention.

(11) The TDS 1 grid body is located up to the upper end, which is the body or element that, due to its dimension and conformation, as well as its distribution on the upper face, allows the flow of urine into the interior of the urinal outlet valve towards the drainage.

(12) With this grill body 1 and the TDS sphere holder 5 that is screwed on the lower part of the grill body 1, the upper chamber is formed where a sphere 3 goes up and down due to the effect of the urine that reaches this chamber. When the sphere floats due to the accumulated urine, a downward flow of urine is formed until the chamber is emptied. When the chamber empties, the sphere 3 descends until it sits on the seat of the sphere holder 5 sealing and preventing the return of drainage gases.

(13) A series of O-rings 2 and 4 are used for sealing between the different parts.

(14) With the lower face of the ball carrier 5 and the inner space of the body 7, the TDS lower chamber is formed where a solid polypropylene ball TDS 7 can block the side hole and the lower hole, when there is no urine in the chamber, and unlock both holes when a certain volume of urine pushes the solid polypropylene sphere 8, and opens the passage to the funnel 9 of the hydraulic trap until the lower chamber 7 is completely discharged, in which case since the solid polypropylene sphere 8 is at the top of an inclined plane, rolls towards the bottom of that plane and simultaneously seals or blocks both holes blocking the exit of drainage gases and the gases naturally released by the urine in the reservoir of the hydraulic trap 11.

(15) The hydraulic trap is thus formed by the tank of the hydraulic trap 11 and the funnel 9. The funnel 9 transports the urine to the bottom of the tank of the hydraulic trap and by means of the principle of communicating vessels establishes a flow of urine towards the edge of the tank to end up in the pipe that transports the urine to the drainage.

(16) FIG. 2 illustrates the external appearance of the three-seal valve to prevent foul odors from returning in a waterless urinal, from FIG. 1. In this figure, you can see the elements grid body 1, counter cartridge holder TDS 13 and counter-nut for a mgo/mgs device.

(17) FIG. 3 illustrates a sectional view of the three-seal valve to prevent the return of foul odors in a waterless urinal, illustrated in FIGS. 1 and 2. In this sectional view it can be seen the grid body 1 with access to the upper chamber of the ball 3 with a ball seat 5. The grid body 1 is located in the counter-cartridge holder TDS 13 and in its lower part is located the lower chamber TDS 7 with the solid polypropylene sphere TDS 8. The funnel of the hydraulic trap 9 flows into the lower part of the tank 11 of the hydraulic trap.

(18) Then the gases 31 from the drainage are stopped by the hydraulic trap and the gases 30 generated by the urine from the hydraulic trap are stopped by the mechanical seal which in this embodiment consists of a double ball valve.

(19) FIG. 4 shows a detailed view of the height of the hydraulic seal of the three-seal valve to prevent the return of foul odors in a waterless urinal of FIG. 3. The detail is the height of the water column formed in the funnel, which is a height 40 corresponding to 4.7 cm. With this height, a compromise is achieved between a seal that must withstand 5 mbar of drainage gases and a compact design.

(20) In summary, there are three preferred embodiments, all of which include the hydraulic trap. In one of the preferred embodiments of the outlet valve, in a waterless urinal of the present invention, two chambers are arranged above the water trap, an upper one with a ball seat and a ball forming a single ball valve. A lower chamber with two outlet holes, one lower and one lateral, is provided between the upper chamber and the water trap. In the closed position the sphere simultaneously blocks both holes, blocking the return of the gases released from the urine that forms the water trap.

(21) In a second preferred embodiment, there is a single upper chamber, wherein this embodiment has in turn two preferred embodiments, one consisting of a chamber with a single sealing hole and the other option of a chamber with two sealing holes.

(22) The invention has been described sufficiently so that a person with ordinary knowledge in the art can reproduce and obtain the results discussed in the present invention. However, any person skilled in the technological field covered by the present invention may be capable of making modifications not described in the present application; however, if in the application of these modifications for a given product or in the manufacturing process thereof, the subject matter claimed in the following claims is required, such structures shall be included within the scope of the invention.