JP2013517403A - Dry trap valve for use in non-flush toilets and other drainage facilities - Google Patents

Abstract

For acceptance and disposal of wastewater, fluids such as urine or other wastewater are transported to the sewer line using, for example, dry trap valves that can be used in non-flush toilets and other drainage facilities. A dry trap valve has an inlet for receiving drainage, a drainage outlet for discarding drainage, a passageway for transporting wastewater from the inlet to the drainage (for example, a depression, a recess or a bypass), and a sealing passage. A holder (eg, a band holder) having an element (eg, a sealing band) for covering. The sealing band is adjacent to the lower end of the dent, and when the drainage flows from the dent, it operates as a joint, allows the drainage to flow to the drainage port, and closes when the drainage is not flowing. Including.
Gas from the sewer line also presses the sealing band to further seal the depression when there is no drainage flow. Thus, the shape memory of the elastic material is not essential, rather it maintains the closure of the passage for sewage gas that would otherwise flow back through the valve by the force of gravity and sewage gas.
[Selection] Figure 1

Description

This application claims the priority of provisional application 61 / 336,300, filed January 20, 2010.

Federal funding statement Not applicable

Microfish appendix reference N / A

  The present invention relates to a flow trap such as a cartridge having a deodorizing mechanism used in a non-flush toilet bowl, and more particularly, can be used without water or a sealant, thereby improving the lifetime and usability of the flow trap. It relates to an improved trap that uses a dry trap valve that improves and does not require water to flow the trap.

  In all types of plumbing traps, drainage flows into and through the trap and into the drain line, preventing sewage gas and other unpleasant odors from flowing back from the drain line through the trap and into the room. Need to flow in one direction. In conventional toilets, this is accomplished by an “S” shaped trap (or similar device) having a bend that is flushed with fresh water after each use and seals the odor with fresh water.

  Non-washing traps are advantageous when water tends to be deficient or expensive, or when water saving is desired. Prior art devices include those described in US Pat. No. 6,053,197 where a sealant lighter than water forms a deodorant plate and the sealant is maintained in the trap.

  Another prior art trap uses a one-way flapper type valve that forms a deodorizing plate, as described in UK application 2,296,309. Such flapper valves use facing parts of elastic material with shape memory so that the tip is normally in the closed position. Such a valve is generally configured such that the circular inlet region is flattened towards the two generally flat abutting sides that form the outlet region, the two sides being pressed together by shape memory, Seal any gas and odor that flows backward from the pipeline. When the force of urine exceeds the elastic property, the two flat portions on the outlet side open and the drainage can flow into the trap. The combination of the flat outlet shape and the shape memory nature of the material used forces the two sides against each other, preventing malodorous gases from leaking into the room.

US Pat. No. 6,053,197 UK Patent Application No. 2,296,309 Patent No. 6,959,723 Patent No. 7,575,022

  However, when such a prior art flapper type valve is used repeatedly, the shape memory of the elastic material is lowered, it remains open, and the malodorous gas can flow back into the room through the trap. is there. Also, prior art flappers may dry out and remain open.

  These and other problems can be caused by the use of dry trap valves that can be used, for example, in non-flush toilets and other drainage facilities, to allow fluids such as urine or other drainage to drain. Can be successfully addressed and solved by the present invention. A dry trap valve has an inlet for receiving drainage, a drainage outlet for discarding drainage, a passageway for transporting wastewater from the inlet to the drainage (for example, a depression, a recess or a bypass), and a sealing passage. A holder (eg, a band holder) having an element (eg, a sealing band) for covering. The sealing band is adjacent to the lower end of the dent, and when the drainage flows from the dent, it operates as a joint, allows the drainage to flow to the drainage port, and closes when the drainage is not flowing. Including. Gas from the sewer line also presses the sealing band to further seal the depression when there is no drainage flow.

  An advantage with the present invention is that shape memory of the elastic material is not essential, but rather maintains the passage closed for sewage gas that would otherwise flow back through the valve due to gravity and gas forces.

  Other objects and advantages of the present invention, as well as a more complete understanding, will become apparent from the following description of exemplary embodiments and the accompanying drawings.

1 is a perspective view of a trap or cartridge designed for use with a non-flush toilet. It is sectional drawing of the trap or cartridge shown in FIG. 1, and is a figure which further shows arrangement | positioning of a toilet bowl. FIG. 3 is a cross-sectional view of the trap or cartridge shown in FIG. 1 as viewed from a position of 90 degrees with respect to that shown in FIG. FIG. 4 is a top view of the trap or cartridge shown in FIGS. 1-3, with phantom lines showing the inner and bottom parts. FIG. 5 is a perspective exploded view of the internal components including the trap or cartridge shown in FIGS. 1-4 and a dry trap valve. FIG. 6 is a perspective view of the bottom portion of the trap or cartridge shown in FIGS. FIG. 6 is a perspective view of the base or base portion of the trap or cartridge shown in FIGS. It is the perspective view seen from a different angle of a dry valve. It is the perspective view seen from a different angle of a dry valve. FIG. 10 is a perspective view of the band holder of the dry valve shown in FIGS. 8 and 9 as seen from different angles. FIG. 10 is a perspective view of the band holder of the dry valve shown in FIGS. 8 and 9 as seen from different angles. FIG. 10 is a side sectional view of the band holder element of the dry valve shown in FIGS. 8 and 9. FIG. 10 is a side sectional view of the band holder element of the dry valve shown in FIGS. 8 and 9. It is the figure which looked at the fixing element of the dry valve which forms the structural component of a fixing structure with the band holder of FIGS. 10-13 from the different angle. It is the figure which looked at the fixing element of the dry valve which forms the structural component of a fixing structure with the band holder of FIGS. 10-13 from the different angle. It is a figure of the sealing band used with a dry valve which shows the sealing band before folding a side element. FIG. 6 is a view of a sealing band used in a dry valve where the side elements are folded and fixed or otherwise connected to the band holder. FIG. 6 is a view of a sealing band used in a dry valve where the side elements are folded and fixed or otherwise connected to the band holder. FIG. 6 is a perspective view of the upper or upper portion of a trap or cartridge engaged by a key for screwing into or releasing from the toilet bowl. FIG. 6 is a side view of the upper or upper portion of a trap or cartridge engaged by a key for screwing into or releasing from a toilet bowl.

  The present invention is useful for drainage equipment used to deodorize drain traps in showers, bathrooms, sinks, floors, and other drainage equipment, but in order to explain its use in detail, the non-flush toilet bowl will be described below. The preferred use in is described. Therefore, the present invention is not particularly limited thereto.

  Referring to FIGS. 1-7, a trap or cartridge 20 for a non-flush toilet bowl, such as that illustrated in US Pat. No. 6,959,723, the entire contents of which are incorporated herein by reference (particularly, FIG. 15) is shown partly shown and placed in a toilet bowl (see FIGS. 2 and 3) shown as symbol 21. Trap 20 includes an upper portion 22 and a base portion 26 disposed to support a dry valve 24 having an inlet tube or dry valve inlet 32. The upper portion 22 includes a cover 28 that includes an inlet opening 30 for receiving urine or other drainage. An O-ring 23 in the annular slot of the cover 28 provides a seal with the toilet bowl 21. As shown in FIG. 3, a downwardly extending lip or edge 31 is formed on the underside of the cover 28 and around the opening 30 so that the dry valve 24 can be attached to the inlet tube 32. Drainage is directed from the cover 28 to the opening 30 where it flows into the inlet pipe 32 of the dry valve 24.

  As shown in FIGS. 2, 3, 5-7 and 19, a partition plate 70 is shown and described, for example, in Patent No. 7,575,022, the entire contents of which are incorporated herein by reference. As such, the cartridge is separated into two chambers, a fluid inlet chamber and a fluid outlet chamber. The fluid outlet chamber terminates at a drain 40 (see FIGS. 2, 3-5 and 7) and leads from there to a sewer line (indicated by the enclosure 41) or similar outlet. Partition plate 70 terminates in comb teeth 72 and fits into guide slot 74 when the upper portion is connected to base or bottom portion 26. The base portion further includes teeth 76 that cooperate with the comb teeth 72 to filter or otherwise collect deposits and the like.

  Referring also to FIGS. 8-15, the dry valve 24 includes a band holder or rigid portion 34 (shown alone in FIGS. 10-13) formed as a generally flat inclined plate having a front side 34A and a rear side 34B, Includes a fixture 38 (shown alone in FIGS. 14 and 15) and a sealing band or movable part 50 (shown alone in FIGS. 16-18). The inlet tube 32 is in the upper portion of the band holder 34 and is adapted to receive drainage from the opening 30 in the cover 28. A depression, recess or bypass 36 (see FIGS. 3, 5, 10 and 11) is formed in the band holder 34 and then extends or protrudes from the side surface 34B. The recess 36 includes a lower end and upper ends 36A and 36B, the lower end 36A is spaced from the inlet 32, and the upper end 36B is disposed adjacent to the inlet 32. As best shown in FIGS. 3, 5 and 10, the fluid passage for drainage flows from the inlet tube 32 to the recess 36, along the flat portion 39 of the band holder 34, to the base 26 of the trap 20. It exits through the port 40 into a trap or cartridge (see FIGS. 2, 3-5 and 7) and from there to the sewer line 41 or similar outlet.

  The band holder 34 and fixture 38 can be molded into any number of materials, such as plastic, metal, sintered ceramic, or any desired shape and can be formed from any reasonably sturdy material. It has been found that acrylonitrile butadiene styrene (ABS) or polypropylene (PP) is suitable for this application.

  The sealing band 50 can be formed from any flexible material such as rubber, silicone rubber or any thermoplastic elastomer. It has been found that a synthetic rubber sheet having a thickness of 0.2 mm to 0.4 mm is suitable.

  The band holder 34 can be attached to the trap 20 in any manner, but it has been found that good results are achieved with all of bonding, press fitting, snap fitting and ultrasonic welding. The attachment is preferably such that the flat portion 39 forms a downwardly inclined surface at an angle of about 10-50 degrees from vertical, and in the preferred embodiment is about 30 degrees (generally shown in FIGS. 11 and 12). To show). However, it should be understood that the dry valve 24 can function at an angle from horizontal to near vertical, ie, from 0 degrees to less than 90 degrees, at least as currently produced.

  9-13, the band holder 34 has two upper slots, namely an upper right slot 42A and an upper left slot 42B, and two lower slots, a lower right slot 44A and a lower left slot 44B. As further shown in FIGS. 14 and 15, the fixture 38 has corresponding protrusions, ie, an upper right protrusion 46A, an upper left protrusion 46B, a lower left protrusion 48B, and a lower right protrusion 48A. As shown particularly in FIGS. 8 and 9, each protrusion of the fixture 38 is in the slot of the band holder 34, that is, the protrusion 46A is in the slot 42A, the protrusion 46B is in the slot 42B, and the protrusion 48A is in the slot. To 44A, the protrusion 46B fits into the slot 44B and is snapped to form a fixed structure.

  16-18, the sealing band 50 has an upper portion 56, a lower portion 58, a right protruding wing 54A and a left protruding wing 54B. The upper portion 56 is generally disposed above the recessed upper end 36B, and the lower portion 58 is disposed generally below the recessed lower end 36A. As will be described in more detail below, the protruding wings 54A and 54B are shown in FIG. 16, which shows how the protruding band of the sealing band is bent or folded when the sealing band is attached to the band holder 34. Thus, it is folded along the folding dotted line 55 as shown in FIGS.

  Referring to FIGS. 8 and 9, the sealing band 50 is placed on the front side 34A of the band holder 34 so as to completely block the inlet tube 32, ie, the sealing band upper portion 56 is at least on the upper side. Extending from the same height as slots 42A and 42B, lower portion 58 covers at least indentation 36. The protruding wings 54A and 54B extend beyond the width of the band holder 34 and are folded back around the band holder 34, preferably by the attachment mechanism 35 or with the sealing band so as to hold the sealing band 50 in place. Attached to the rear side 34B by other mechanical devices or adhesives that ensure complete attachment with the band holder. As shown in this specification, the attachment mechanism 35 includes an arrowhead-shaped perforated portion that extends outward from the holder rear side surface 34B so as to pierce the protruding wings 54A and 54B of the sealing band 50. Other fixing / fixing techniques known in the art can also be used, particularly when overmolding techniques (eg, multi-molding techniques) are utilized.

  As shown in FIGS. 8 and 9, the lower portion 58 of the sealing band 50 can be turned upside down or pivoted along line AA ′ in response to urine flow, or It is arranged as follows. Line AA ′ is near the lower end of the sealing band 50 just below the protruding wings 54A and 54B, so that the majority of the recess 36 is always covered by the sealing band 50 even when drainage flows. The majority of the sealing band that is turned upside down from the line AA ′ to the lower end of the band 50 is below the lower end of the recess 36, and the sealing band 50 is used as a hinge. This configuration provides an articulation or hinge action that allows the valve 24 to open and close. The sealing band is lifted and opened by the flow of drainage, and after the liquid flows, the opening is closed again by gravity.

  The sealing band 50 is connected to the band holder 34 so as to cover the recess 36. In a preferred embodiment of the present invention, the sealing band punctures the wing portions 54A and 54B using an arrowhead-like perforation by wrapping both wing portions 54A and 54B near the sides 34A and 34B of the band holder. And by holding the fixture 38 on the sealing band 50 and securing the fixture 38 to the band holder 34. Friction engagement can also be used, but in a preferred fixation, the upper right protrusion 46A into the upper right slot 42A, the upper left protrusion 46B into the upper left slot 42B, and the lower right protrusion 48A into the lower right slot 44A, It is utilized to press-fit the lower left protrusion 48B into the lower left slot 44B.

  The fixture 38 also has a pair of curved flanges, a right flange 52A and a left flange 52B. The flanges are sufficiently spaced so as not to cover the recess 36 in order to press or compress the sealing band 50 against the band holder 34.

  As shown in FIGS. 8 and 9 (see also FIGS. 10-13), in a preferred embodiment, the lower edge of the sealing band projection wings 54A and 54B terminates just before the lower end 36A of the recess 36 and seals. The upper portion 56 of the band 50 extends beyond the upper end 36B of the recess 36 and is completely covered by the sealing band 50 pressed by the fixture 38 in combination with the fixture 38 to form a seal.

  The dimensions of the above parts are generally based on the size of the toilet trap. The size and shape (curvature, etc.) of the recess 36 can be adjusted according to the assumed liquid flow.

  In operation, the sealing band 50 is held in place when the trap 20 is not in use, and closes the depression 36 and the inlet tube 32 by the angle of the flat portion 39, mostly by gravity. The main purpose of the elastic properties of the sealing band 50 is to use it as a hinge. Since the sealing band 50 is flat and seals the recess 36 and the inlet pipe 32, sewage gas and unpleasant odor from the sewage pipe 41 are prevented from entering the room. It has been found that the pressure of the sewage gas from the sewage line 41 allows the sealing band 50 to be more reliably pressed against the recess 36 and the inlet pipe 32.

  When the toilet bowl is used, drainage flows to the trap inlet opening 30 and flows there through to the inlet pipe 32 of the dry valve 24. The force of drainage through the inlet tube 32 and the depression 36 applies sufficient pressure to exceed the force of gravity holding the sealing band 50 in place, pressing the sealing band upwards and draining the flat portion 39. It becomes possible to flow to the drainage port 40 along. When the drainage flow stops, the sealing band 50 is again pushed downward by gravity against the recess 36 and the inlet tube 32 to again seal the gas and odor. Accordingly, drainage or other fluid is transported from the opening 30 through the drain port 40 to the sewer line 41.

  As shown in FIGS. 5, 19 and 20, the cartridge 20 can be inserted or removed, such as by screwing into or releasing the toilet using the key 62. Key 62 includes a tip 64 bent at one end and a stop ramp 66 and a handle 68 at the other end. The bent tip 64 fits within the inlet opening 30 of the upper portion 22 and is disposed so as to be inclined therein. The stop ramp 66 contacts the cover 28 and helps to attach the tip 64 into the opening 30.

  As described above, the present invention has been described as being used in traps for non-flush toilets. However, as described above, the present invention is applicable to deodorant drain traps such as showers, bathrooms, sinks, floors, and other drainage facilities. It can be used in any situation you need. Thus, although its operation has been described with reference to a non-flush toilet bowl, it should be noted that this is merely for ease of illustration and many other such applications are possible.

20: Trap or cartridge 21: Toilet 22: Upper part 23: O-ring 24: Dry valve 26: Base part 28: Cover 30: Opening 31: Lip or edge 32: Inlet pipe or dry valve inlet 34: Band holder or rigid part 34A: Front side surface 34B: Rear side surface 35: Adhering mechanism 36: Depression, depression or bypass 36A: Lower end 36B: Upper end 38: Fixing tool 39: Flat part 40: Drainage port 41: Sewage pipe 42A: Upper right slot 42B: Upper left Slot 44A: Lower right slot 44B: Lower left slot 46A: Upper right protrusion 46B: Upper left protrusion 48A: Lower right protrusion 48B: Lower left protrusion 50: Sealing band or movable part 52A: Right flange 52B: Left flange 54A: Right Projection wing 54B: Left projection wing 55: Folding line 56: Upper part 58: Lower part 62: Key 64: Bend The tip 66: Stop the inclined portion 68: handle 70: partition plate 72: comb teeth 74: Guide slot 76: teeth

Claims (23)

A dry trap valve for transporting said fluid for receiving and disposing of said fluid,
A holder having an inlet for receiving the fluid, a drain for discarding the fluid, a passage for transporting the fluid from the inlet to the drain, and an element for sealingly covering the passage Including dry trap valve. The holder includes a band holder having a generally flat inclined plate having a front side and a rear side;
The passageway includes a recess protruding from the rear side and having an upper end adjacent to the inlet and a lower end spaced from the inlet;
The dry trap valve of claim 1, wherein the sealing element includes a sealing band placed on the front side.   The sealing band is adjacent to the lower end of the recess, and is articulated when the fluid flows from the recess, allows the fluid to flow to the drain, and closes when the fluid is not flowing. The dry trap valve of claim 2, including a hinge portion disposed thereon. The band holder has a flat portion extending beyond the lower end of the recess;
The dry trap valve of claim 2, wherein the sealing band includes an upper portion disposed generally above the upper end of the recess and a lower portion disposed generally below the lower end of the recess. .   The lower part of the sealing band is basically arranged to articulate along a line (a) below the lower part of the sealing band and (b) below the lower end of the recess. A hinge portion that opens and closes the valve to the sealing band, so that the majority of the recess is always covered by the sealing band while the fluid is flowing. The dry trap valve according to claim 4, wherein the valve is closed by gravity after the sealing band is lifted and opened by the flow of the fluid flow and the liquid flow is stopped.   The dry trap valve according to claim 2, further comprising a fixing structure that connects the sealing band to the band holder. In order to enable realization of the fixing structure,
The band holder includes a spaced apart upper slot and a spaced apart lower slot;
The fixture includes a pair of spaced apart upper projections and a pair of spaced apart lower projections, each equal in number to the spaced apart upper and lower slots;
The dry trap valve of claim 6, wherein the securing structure includes snap engagement of each of the protrusions of the fixture to a slot of the band holder. The band holder includes a flat portion extending beyond the lower end of the recess;
An upper portion, wherein the sealing band is generally disposed above the upper end of the recess, a lower portion, generally disposed below the lower end of the recess, and an upper portion and a lower side of the sealing band The dry trap valve of claim 2 including a protruding wing between the portions.   The lower part of the sealing band is basically articulated along a line (a) near the lower part of the sealing band below the protruding wing and (b) below the lower end of the recess. And a large portion of the recess is always covered by the sealing band even while the fluid is flowing. 9. A dry operation according to claim 8, wherein a hinge operation is performed to open and close the valve, whereby the sealing band is lifted and opened by the flow of the fluid flow, and the valve is closed by gravity after the liquid flow is stopped. Trap valve. A toilet and non-wash cartridge that can be placed in a toilet for receiving and disposing of waste water,
A band holder having a dry trap valve for transporting the drainage to a drain outlet, wherein the dry trap valve has an inlet for receiving the drainage, and an internal passage for carrying the drainage to the drain outlet; And a toilet bowl and a non-wash cartridge comprising a sealing band covering the passage. The band holder includes a structure defining a generally flat inclined plate having a front side and a rear side;
The passageway includes a recess protruding from the rear side and having an upper end adjacent to the inlet and a lower end spaced from the inlet;
11. A toilet and non-wash cartridge according to claim 10, wherein the sealing band is placed on the front side.   The sealing band is adjacent to the lower end of the depression, and when the drainage flows from the passage, the joint operates, and the drainage flows to the drainage port, and can be closed when the drainage is not flowing, 12. A toilet and non-wash cartridge according to claim 11, wherein the gas from the sewer line includes a hinge portion arranged to assist sealing of the recess by the sealing band. The band holder has a flat portion extending beyond the lower end of the recess;
13. A toilet and non-container according to claim 12, wherein the sealing band includes an upper portion disposed generally above the upper end of the recess and a lower portion disposed generally below the lower end of the recess. Wash cartridge.   The lower part of the sealing band is basically arranged to articulate along a line (a) below the lower part of the sealing band and (b) below the lower end of the recess. The most part of the depression is always covered with the sealing band even while the drainage is flowing, and therefore, the hinge band opening / closing operation is performed on the sealing band. The sealing band is lifted and opened by the flow of the drainage flow, and after the liquid flow is stopped, the valve is closed by gravity, and the gas from the sewage pipe is allowed to pass through the depression of the sealing band. 14. The toilet bowl and non-wash cartridge according to claim 13, wherein the toilet bowl is capable of assisting in sealing.   The toilet bowl and non-washing cartridge according to claim 10, further comprising a fixing structure for connecting the sealing band to the band holder. In order to enable realization of the fixing structure,
The band holder includes a spaced apart upper slot and a spaced apart lower slot;
The fixture includes spaced apart upper protrusions and spaced apart lower protrusions, each equal in number to the spaced apart upper and lower slots;
The toilet bowl and non-wash cartridge according to claim 15, wherein the fixing structure includes a snap engagement of each of the protrusions of the fixture to a slot of the band holder. The band holder includes a generally flat inclined plate having a front side and a rear side;
The passageway includes a recess protruding from the rear side and having an upper end adjacent to the inlet and a lower end spaced from the inlet;
11. A toilet and non-wash cartridge according to claim 10, wherein the sealing band is placed on the front side. The band holder includes a flat portion extending beyond the lower end of the recess;
An upper portion, wherein the sealing band is generally disposed above the upper end of the recess, a lower portion, generally disposed below the lower end of the recess, and an upper portion and a lower side of the sealing band 18. A toilet and non-wash cartridge according to claim 17, including a protruding wing between the portions.   The lower part of the sealing band basically articulates along a line (a) near the lower part of the sealing band below the protruding wing and (b) below the lower end of the recess. The most part of the depression is always covered by the sealing band even while the drainage is flowing. Therefore, a valve is provided on the sealing band. The toilet bowl and non-wash cartridge according to claim 18, wherein a hinge operation for opening and closing is performed, whereby the sealing band is lifted and opened by the flow of the drainage flow, and the valve is closed by gravity after the liquid flow is stopped. . A flow guide for the transport of fluid,
A rigid portion having a passage for allowing said fluid to flow;
Connected to the rigid portion and disposed above the passage of the rigid portion in the direction of gravity, and when the fluid force is present, opens to the fluid force, and when the fluid force is not present, by gravity And a movable part having a structure adapted to close the passage of the rigid part.   A passage in the rigid portion is connected to an outlet for receiving the fluid, the outlet containing gas, thereby applying pressure to the movable part to enhance closure when the fluid force is not present The flow guide of claim 20. A flow guide for the transport of fluid,
A rigid portion including a passage for allowing the fluid to flow, coupled to an outlet for receiving the fluid, the outlet including a gas;
Connected to the rigid portion and opens against the fluid force when the fluid force is present, and when the fluid force is absent, the gas applies pressure to the movable portion to cause the movable portion to move. And a movable part having a structure that causes the part to close the passage of the rigid part.   23. A flow guide according to claim 22, wherein the movable part is positioned above the rigid part passageway in the direction of gravity and the closure is enhanced by gravity when the fluid force is not present.

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