MX2012008464A

MX2012008464A - Dry trap valve for use in a non-flushing urinal and others drains.

Info

Publication number: MX2012008464A
Application number: MX2012008464A
Authority: MX
Inventors: Thomas Helbig; Jorg Fitzke
Original assignee: Falcon Waterfree Technologies Llc
Priority date: 2010-01-20
Filing date: 2011-01-20
Publication date: 2012-11-06
Also published as: BR112012017984A2; WO2011091183A3; CN102939424A; NZ601273A; SG182620A1; CN102939424B; CR20120424A; AU2011207259A1; ZA201205435B; KR20130001721A; US20120023649A1; CA2787513A1; EP2526232A2; CO6602148A2; IN2012DN06389A; JP2013517403A; RU2012135509A; WO2011091183A2

Abstract

The dry trap valve includes a holder (e.g., a band holder) having an entry (30) for receipt of the wastewater, a drain (40) for disposal of the wastewater, a passageway (e.g., dent, depression or bypass) for conducting the wastewater from the entry to the drain, and an element e.g., a sealing band) for sealingly covering the passageway. The sealing band includes a hinged portion adjacent the lower end of the dent and is disposed to articulate upon flow of the wastewater from the dent and to permit the wastewater to flow to the drain and to close in the absence of the wastewater flow.

Description

DRY TRAP VALVE FOR USE IN URINALS WITHOUT DISCHARGE OF WATER AND OTHER TYPES OF DRAINAGE FIELD OF THE INVENTION The present invention relates to a flow trap, such as a cartridge used in urinals without water discharge, and having an odor prevention mechanism and, in particular, to an improved trap using a dry trap valve that It can be used without water or sealer, which results in a life of use will improve for the flow trap and ease of use, and the elimination of the need for water to rinse the trap.

DESCRIPTION OF THE RELATED TECHNIQUE AND OTHER CONSIDERATIONS In any type of plumbing trap, it is necessary to provide for the unidirectional flow of sewage into and through the trap to a drainage line, while blocking sewer gas and other unpleasant odors from the drainage line, through the trap and inside the room. In traditional urinals, this is accomplished by an "S" shaped trap (or similar device) that has a curve that is washed with water after each use, and with fresh water to provide an odor seal.

[0006] Traps that do not need water are advantageous where water is scarce or expensive, or when water conservation is desired. Prior art units include those described in U.S. Patent No. 6,053,197, in which a sealant lighter than water forms the odor barrier, and wherein the sealant is held in the trap.

Other traps of the prior art have employed hinged-style unidirectional valves to form the odor barrier, as described in UK Published Application No. 2,296,309. Said hinged valves are based on opposite pieces of elastomeric material having memory so that the tips are normally in a closed position. Said valves normally consist of a circular entry area, which is flattened to two contiguous sides, generally flat, which form the exit zone, in which the shape memory drives the two parts, one against the other to seal the gases and the smells that come up through the line. The force of the urine overcomes the elastomeric qualities and opens the two flattened parts of the waste water outlet side and allows it to flow into the trap. The combination of the shape of the flattened exit, and the memory qualities of the materials used, urges the two sides against each other to prevent malodorous gases from escaping into the room.

Unfortunately, after the repeated use of these hinge-style valves of the prior art, the elastorne loses its shape memory, and can remain open and allow malodorous gas to flow back through the trap into the room. In addition, the fins of the prior art can be dried and remain open.

SUMMARY OF THE INVENTION These and other problems were successfully addressed and overcome by the present invention, in which a dry trap valve, usable in a urinal without discharge of water and other drains, is used to transport a fluid, such as urine or other waters waste to a sewer line for the reception and disposal of wastewater. The dry trap valve includes a support (e.g., a band holder) having an inlet for the reception of the wastewater, a drain for the removal of the wastewater, a passageway (e.g., nick, depression or bypass) for the conduction of the waste water from the entrance to the drain, and an element (for example, a sealing band) to hermetically cover the passageway. The sealing band includes an articulated portion adjacent to the lower end of the indentation and is arranged to articulate with the flow of waste water from the nick and to allow wastewater to flow into the drain and to close in the absence of flow of the waste. sewage water. The gases coming from the sewer line also press on the sealing band in the absence of wastewater flow to further seal the dent.

The concomitant advantages are that the memory of the elastomeric material is not essential, but rather, the forces of gravity and the force of the gas keep closed the passage to the sewer gases that would otherwise be returned through the valve.

Other objects and advantages, as well as a more complete understanding of the present invention, will appear from the following explanation of an exemplary configuration and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a trap or cartridge designed for use in a urinal without water discharge; Figure 2 is a cross-sectional view of the trap or cartridge as shown in Figure 1, and further illustrating its positioning in a urinal; Figure 3 is a cross-sectional view of the trap or the cartridge as seen in Figure 1, taken at a 90 ° point of view with respect to that shown in Figure 2, and in the same way illustrates its positioning in a urinal; Figure 4 is a top view of the trap or the cartridge as shown in Figures 1-3, with the internal and lower components illustrated in dashed lines; Figure 5 is an exploded perspective view of the trap or cartridge as shown in Figures 1-4, with the internal components thereof, including the dry trap valve; Figure 6 is a perspective view of the bottom of the trap or the cartridge as shown in Figures 1-5, - Figure 7 is a perspective view of base or base portion of the trap or cartridge as it is shown in figures 1-5; Figures 8 and 9 are perspective views at different angles of the dry valve; Figures 10-13 are various representations of the band support in perspective views of different angles (respectively Figs 10 and 11) and side and cross-sectional views (Figures respectively 12 and 13) of the valve band support element dry illustrated in Figs. 8 and 9; Figures 14 and 15 are views at different angles of a dry valve fastening element forming a component, together with the band support of Figures 10-13, of a fastening arrangement; Figures 16-18 are views of the sealing band used in the dry valve, in which Figure 16 illustrates the sealing band before its secondary elements are bent backwards and Figures 17 and 18 show their side elements that fold back while holding or attaching to the band holder; Y Figures 19 and 20, respectively, are perspective and side elevational views of the upper part of the trap or cartridge while being screwed or unscrewed into and from a urinal.

DETAILED DESCRIPTION Although the present invention is useful for drains that are used in drainage odor blocking traps such as those that exist in the shower, bath, sink, floors, and other drains, for the detailed purposes of their use, the following discussion relates to its preferred use in urinals without water discharge, therefore, it is intended that the present invention should not be so specifically limited.

Referring to Figures 1-7, a trap or cartridge 20 for a urinal without water discharge is shown placed in a urinal (see Figs 2 and 3) as represented by portions thereof and designated by the index 21, as exemplified in patent No. 6,959,723 (specifically, figure 15 thereof), the content of which is incorporated herein, as established in haec verba. The trap 20 comprises an upper portion 22, which is arranged to support a dry valve 24 having an inlet tube or a dry valve inlet 32, and a base portion 26. The upper portion 22 includes a cover 28 that , in turn, includes an entry opening 30 for the reception of urine or other wastewater. An O-ring 23 within an annular groove in the cover 28 provides a seal with the urinal 21. As best shown in Figure 3, a lip extending downward or edge 31 is formed in the lower part of the cover 28 and surrounds the opening 30, in such a way as to allow the dry valve 24 to be fixed to the inlet pipe 32. The waste water is directed through the cover 28 to the opening 30 where it enters the inlet pipe 32 of the dry valve 24 .

As shown in Figures 2, 3, 5-7 and 19, a barrier 70 separates the cartridge into two compartments, a fluid inlet compartment and a fluid outlet compartment, for example, as illustrated and described in FIG. Patent No. 7,575,022, the contents of which are incorporated herein as established in haec verba. The fluid outlet compartment terminates in a drain 40 (see Figs 2, 3-5 and 7), from where it passes to a drain pipe (as symbolized by attachment 41) or a similar outlet. The barrier 70 terminates in a tooth comb 72 and, when the upper portion engages with the base or lower part 26, slides in the guide grooves 74 thereof. The base portion is further provided with teeth 76 which cooperate with the tooth comb 72 to tension or otherwise trap debris and similar materials.

Referring also to Figures 8-15, the dry valve 24 comprises a band support or rigid portion 34 generally formed as a flat ramp, having a front side 34A and a rear side 34B (shown in the insulation in Figs. 10-13), a clamp 38 (shown in the insulation in Figs 14 and 15) and a sealing band or movable portion 50 (shown in the insulation in Figs 16-18). The inlet tube 32 is in an upper portion of the band support 34 and is adapted to receive the waste water from the opening 30 in the cover 28. A nip, depression or bypass 36 (see Figs 3, 5, 10 and 11) is formed in the band support 34 and extends or protrudes from its rear side 34B. The nib 36 includes lower and upper ends 36A and 36B in which the lower end 36A is spaced from the inlet 32 and where the upper end 36B is located adjacent the inlet 32. As best seen in Figures 3, 5 and 10 , a passage of fluid for the waste water to pass from the inlet tube 32 to the nib 36, along a flattened portion 39 of the band support 34, and through the base 26 of the trap 20, where it can flow out of the trap or cartridge through drain 40 (see Figs 2, 3-5 and 7), from where it passes to drain line 41 or a similar outlet.

The band support 34 and the clamp 38 can be made of any number of materials, such as plastic, metal, sintered ceramic, or any material that can be molded into the desired shape and that is reasonably resilient. It has been found that acrylonitrile butadiene styrene (ABS) or polypropylene (PP) work well in this application.

The sealing band 50 may be made of any flexible material such as rubber, silicone rubber or any thermoplastic elastomer. A sheet of synthetic rubber with a thickness in the range of 0.2mm to 0.4mm has been found to work well.

Although the band support 34 can be attached to the trap 20 in any number of ways, it has been found that gluing, compression adjustment, fit in shape and ultrasonic welding are satisfactory performance results. The adhesion preferably is such that the flattened portion 39 forms a downward slope at an angle of about 10 ° to about 50 ° from the vertical and, in a preferred configuration, is about 30 ° (as generally seen in Figures 11). and 12.); however, it should be understood that, at least as formulated, the dry valve 24 is capable of operating between the horizontal to close to the vertical, i.e., within the angular ranges of 0o to less than 90 °.

Referring to Figures 9-13, the band support 34 has two upper slots, namely the upper right slot 42A and the upper left slot 42B, and two lower slots, lower right slot 44A and lower left slot 44B. As shown in Figs. 14 and 15, the bracket 38 has corresponding pins, namely upper right pin 46A, upper left pin 46B, lower left pin 48B and lower right pin 48A. As also particularly shown in FIGS. 8 and 9, the respective pins of the bracket 38 fit and snap into the slots in the band holder 34 to provide a securing arrangement, namely, the pin 46A in the slot 42A , the plug 46B in the slot 42B, the plug 48A in the slot 44A, and the plug 46B in the slot 44B.

Referring to Figures 16-18, the sealing band 50 has an upper portion 56, a lower portion 58, a right projection wing 54A and a left projection wing 54B. The upper portion 56 is generally positioned above the upper end nib 36B and the lower portion 58 is generally positioned below the lower end nib 36A. As explained in more detail below, the projection wings 54A and 54B are folded back on themselves as illustrated in Figures 17 and 18, generally along fold lines 55, as shown in FIGS. Figure 16, which also illustrates how the sealing bands of the projection strips could be bent or folded when the sealing band is secured to the band support 34.

With reference to Figures 8 and 9, the sealing band 50 is placed on the front side 34A of the band support 34, in such a manner as to completely block the entrance of the tube 32, that is, the upper portion of the sealing band. 56 extends from at least as high as the upper slots 42A and 42B, and the lower portion 58 at least covers the nib 36. The projection wings 54A and 54B extend beyond the width of the band support 34, and are folded backwardly around the band support 34, and fixed thereto on its rear side 34B preferably by fixing the mechanisms 35, or by any other mechanical application or bonding agent that ensures complete clamping between the sealing band and the band support, as to maintain the sealing band 50 in position. As illustrated herein, the positioning of the mechanisms 35 comprises arrow-shaped perforators extending outward from the lateral rear support 34A to pierce through the projection wings 54A and 54B of the sealing band 50. Another technology of fixation Anchoring known in the art can be used, in particular when overmolding technology is used (eg, multiple molding techniques).

As shown in FIGS. 8 and 9, the lower portion 58 of the sealing band 50 is capable of turning or articulating up along the line A-A1 in response to the flow of urine. The line A-A1 is located just below the projection wings 54A and 54B towards the lower end of the sealing band 50, such that most of the nick 36 is always covered by the sealing band 50, including when the wastewater is flowing, and most of the portion of the sealing band that goes upwards, from the line AA 1 to the lower end of the band 50, is fixed beyond the lower end of the nick 36, using the sealing band 50 as a hinge. This organization results in an articulated or hinged movement which allows the valve 24 to open and close. The wastewater flow lifts the sealing band up to open it and, after the liquid flow, gravity closes the opening again.

The sealing band 50 is coupled to the band support 34 to cover the nib 36. In the preferred configuration of the present invention, the sealing band is held in place by wrapping both wing portions 54A and 54B on the sides 34A and 34B of the band support, by using arrow-shaped perforators to pierce the wing portions 54A and 54B, and by placing the clamp 38 on the sealing band 50 to secure it to the band support 34. While A friction connection can be employed, the preferred fastener is to make use of a snap fit of the upper right plug 46A inside the upper right slot 42A, the upper left plug 46B inside the upper left slot 42B, the lower plug 48A inside the right lower slot 44A, and the lower left plug 48B inside the lower left slot 44B.

The clamp 38 also has a pair of curved flanges, the right flange 52A and the left flange 52B. The flanges are spaced a distance sufficient to not cover the indentation 36, to push or press the sealing band 50 against the band support 34.

In a preferred configuration, as illustrated in Figures 8 and 9 (see also Figures 10-13), the sealing bands of the projection wings 54A and 54B at their lower edges terminate before the lower end 36A of the nick. 36, while the upper portion 56 of the sealing band 50 extends beyond the upper end 36B of the nick 36, which is completely covered by the sealing band 50 in combination with and compressed by the clamp 38 to form a seal .

The dimensions of the mentioned components are generally based on the size of the trap of the urinal. The size and shape (curvature or otherwise) of the nick 36 can be adjusted depending on the anticipated liquid flow.

In operation, between the uses of the trap 20, the sealing band 50 is held in place, blocking the nip 36 and the inlet tube 32, largely by gravity, due to the angle of the flattened portion 39. The main purpose of the elastomeric qualities of the sealing band 50 is to be used as a hinge. Because the sealing band 50 is resting flat and is sealed against the nip 36 and the inlet pipe 32, they are prevented from entering the room by sewer gases and unpleasant odors from the drain line 41. It has been found that the pressure of the sewer gases from the drain pipe 41 is capable of urging the sealing band 50 more firmly against the nip 36 and the inlet pipe 32.

When the urinal is used, the wastewater will be directed to the inlet opening 30 of the trap, and thus enter the dry valve inlet pipe 32. The force of the wastewater through the inlet pipe 32 and the nip 36 provides adequate pressure to overcome the force of gravity that is holding the sealing band 50 in place, and urges up the sealing band, allowing waste water to flow past, along the flattened portion. 39 within the drain 40. When the wastewater flow ceases, the gravity again urges the sealing band 50 down against the nip 36 and the inlet pipe 32, again providing a seal against gas and odor. Thus, wastewater or other type fluids are transported from opening 30, through drain 40 and drain line 41.

As shown in Figures 5, 19 and 20, the cartridge 20 can be inserted or removed, for example when being screwed into or removed from a urinal by the use of a key 62. The key 62 includes a tip 64 and a part angled stop 66 at one end and a handle 68 at its other end. The tip 64 is arranged to fit within the entry opening 30 of the upper portion 22 and to be inclined therein. The part 66 contacts the cover 28 to assist in fixing the tip 64 within the opening 30.

Although the present invention has been described as being used in a trap for a urinal without water discharge and as indicated above, it can be employed in any situation requiring a drain odor trap trap, such as in the shower, bath , sink, floor and other drains. Thus, although its operation was described above with reference to a urinal without water discharge, it should be kept in mind that this is only for ease of examples, and that many of these other applications are possible.

Claims

NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and, therefore, what is contained in the following is claimed as property. CLAIMS

1. A dry trap valve for the transport of a fluid for the reception and removal of the fluid, characterized in that it comprises: a support having an inlet for receiving the fluid, a drain for the removal of the fluid, a conduit for conducting the fluid from said inlet to said drain, and an element for hermetically covering said passage.

2. The trap trap valve according to claim 1, characterized in that: said support comprises a band support that includes a ramp, generally flat, having front and back sides; said step comprises a recess protruding from said rear side and having an upper end adjacent to said inlet and a lower end spaced from said inlet; Y said sealing element comprises a sealing band located on said front side.

3. The dry trap valve according to claim 2 characterized in that said sealing band includes an articulated portion adjacent said lower nick end and arranged to articulate on the fluid flow from said nick and to allow the flow of fluid to said drainage and to close in the absence of fluid flow.

4. The trap trap valve according to claim 2, characterized in that: said band support includes a flattened portion extending beyond said lower end of the indentation; and said sealing band includes an upper portion positioned generally above said upper end of the indentation and a lower portion positioned generally below said lower end of the indentation.

5. The dry trap valve according to claim 4, characterized in that said lower portion of sealing band has a structure that is arranged to articulate along a line essentially (a) below said lower portion of sealing band and (b) below said lower end of nick so that the majority of said nick is always covered by said sealing band even during the flow of the fluid, thus imparting said sealing band with a tilting movement that allows the valve to open and closure wherein the flow of the fluid flow lifts said sealing band upwards to open and, after the cessation of flow of the fluid, to allow gravity to effect the closure of the valve.

6. The dry trap valve according to claim 2, characterized in that it further comprises a clamping arrangement coupling of said sealing band to said band support.

7. The dry trap valve according to claim 6, to allow the activation of said clamp device, characterized in that: said band support includes spaced top grooves and spaced bottom grooves; said clamp includes a pair of spaced upper pins and a pair of spaced lower pins, respectively equal in number to said spaced apart upper and lower slots; Y said clamp arrangement includes a clamp clasp of said clamp pin respectively in said grooves of the band holder.

8. The trap trap valve according to claim 2, characterized in that: said band support includes a flattened portion extending beyond said lower end of the indentation; and said sealing band including an upper portion positioned generally above said upper end of the indentation, a lower portion positioned generally below said lower end of the indentation, and the projection wings located between said upper and lower portions of the band. sealing.

9. The dry trap valve of. according to claim 8 characterized in that said lower portion of sealing band has a structure that is arranged to articulate along a line essentially (a) below said projection wings to said lower portion of sealing band and ( b) below said lower end of the nick such that the majority of said nick is always covered by said sealing band even during the flow of the fluid, thus imparting said sealing band with a tilting movement that allows the opening and closing of the valve where the flow of the fluid raises said sealing band upwards to open and, after the flow of the fluid ceases, to allow gravity to be effected the closing of the valve.

10. A urinal and a cartridge without water discharge positioned in the urinal for the reception and disposal of waste water characterized because it comprises: a dry trap valve for transporting wastewater to a drain, said dry trap dry valve includes: a band support having an inlet for the reception of the waste water and a passageway in said support for the conduction of the wastewater to said drain; Y a sealing band that covers this step.

11. The urinal and a cartridge without water discharge according to claim 10, characterized in that: said band support includes a structure defining a generally flat ramp, having front and rear sides; said step comprising a nip protruding from said rear side and having an upper end adjacent said inlet and a lower end spaced from said inlet; Y said sealing band that is on said front side.

12. The urinal and a cartridge without water discharge according to claim 11, characterized in that said sealing band includes an articulated portion adjacent said lower end of the nick and arranged to articulate in the wastewater flow of said passage and allow the flow of wastewater to said drainage and closing in the absence of the flow of wastewater to allow the gases coming from the sewer line to assist in the sealing by said sealing band of said indentation.

13. The urinal and a cartridge without water discharge according to claim 12, characterized in that: said band support includes a flattened portion extending beyond said lower end of the indentation; Y said sealing band includes an upper portion positioned generally above said upper end of the indentation, and a lower portion positioned generally below said lower end of the indentation.

14. The urinal and a cartridge without water discharge according to claim 13, characterized in that said lower portion of sealing band has a structure that is arranged to be articulated along a line essentially (a) below said lower portion of the band. sealing and (b) below said lower end of the nick in such a way that most of said nick is always covered by said sealing band even during the flow of the waste water, thus imparting said sealing band with a seal. tilting movement that allows the opening and closing of the valve through which the flow of the wastewater raises the sealing band up to open and, after the liquid flow stops, to allow gravity to effect the closing of the valve and to allow the gases from the sewer line to assist in the sealing of said sealing band on said indentation.

15. The urinal and a cartridge without water discharge according to claim 10, characterized in that it also comprises a clamping arrangement coupling of said sealing band to said band support.

16. The urinal and a cartridge without water discharge according to claim 15, to allow the activation of said clamp device, characterized in that: said band support includes spaced top grooves and spaced bottom grooves; said clamp includes spaced upper pins and lower pins spaced respectively equal in number to said upper and lower grooves; Y said clamp arrangement including a clamp pin holding clip respectively in said grooves of the band holder.

17. The urinal and a cartridge without water discharge according to claim 10, characterized in that: said band support comprising a ramp, generally flat, having front and back; said step comprising a nip protruding from said rear side and having an upper end adjacent said inlet and a lower end spaced from said inlet; Y said sealing band that is on said front side.

18. The urinal and a cartridge without water discharge according to claim 17, characterized in that: said band support includes a flattened portion extending beyond said lower end of the indentation; and said sealing band including a top portion positioned generally above said upper end of the nip, a lower portion positioned generally below said lower end of the nip, and the projection wings located between said upper and lower portions of the nip band. sealed.

19. The urinal and a cartridge without water discharge according to claim 18, characterized in that said lower portion of sealing band has a structure that is arranged to articulate along a line essentially (a) below said projecting wings towards said lower portion of sealing band (b) below said lower end of the indentation such that the majority of said indentation is always covered by said sealing band even during the flow of the wastewater, thus imparting said sealing band with a tilting movement that allows the valve to open and close where the flow of the wastewater raises said sealing band up to open the valve and, after the liquid flow stops, to allow gravity to effect the closing of the valve. The valve.

20. A flow guide for the transport of a fluid characterized because it comprises: a rigid portion having a trajectory to allow fluid flow; Y a movable portion that is coupled to said rigid portion and gravitationally positioned above said path of the rigid portion and having a construction that is made to open when in the presence of and against the force of the fluid and, when the force of the fluid is not present, to effect the closing of said trajectory of the rigid portion under the force of gravity.

21. The flow guide according to claim 20 characterized in that said path of the rigid portion is coupled to an outlet to receive the fluid and in which the outlet contains gases, that when the force of the fluid is not present, the gases apply pressure against said mobile portion to improve closure.

22. A flow guide for the transport of a fluid characterized because it comprises: a rigid portion that includes a path to allow the flow of fluid which is coupled to an outlet for receiving the liquid, wherein the outlet contains gases; Y a movable portion that is coupled to said rigid portion and having a construction that is made to open in the presence of and against the force of the fluid and, when the force of the fluid is not present, the gases apply pressure against said movable portion to effect the closing of said movable portion of said path of the rigid part.

23. The flow guide according to claim 22, characterized in that said movable portion is gravitationally positioned above said path of the rigid part and, when the force of the fluid is not present, the closure is increased by the force of gravity. SUMMARY A dry trap valve, usable in a urinal without discharge of water and other drains, is used to transport a fluid, such as urine or other wastewater to a sewer line for the reception and disposal of wastewater. The dry trap valve includes a support (eg, a band holder) having an inlet for the reception of the wastewater, a drain for the disposal of the wastewater, a passageway (eg, nick, depression or bypass) for the conduction of waste water from the inlet to the drain, and an element (for example, a sealing band) to hermetically close the passage. The sealing band includes an articulated portion adjacent to the lower end of the indentation and is arranged to articulate with the flow of waste water from the nick and to allow wastewater to flow into the drain and to close in the absence of flow of the waste. sewage water. The gases coming from the sewer line also press on the sealing band in the absence of wastewater flow to further seal the dent. A) Yes, the memory of the elastomeric material is not essential, but rather, the forces of gravity and the force of the sewer gas keep closed the passage to the sewer gases that would otherwise be returned through the valve.