WO2017184409A1

WO2017184409A1 - Splash and odor reduction in dry toilet

Info

Publication number: WO2017184409A1
Application number: PCT/US2017/027285
Authority: WO
Inventors: Yahe ZHANG
Original assignee: Shi, Lei
Priority date: 2016-04-22
Filing date: 2017-04-13
Publication date: 2017-10-26
Also published as: US20170303750A1

Abstract

This application describes a splash-proof odor reducing waterless toilet, a funnel-shaped soft passageway, the passageway material being a high polymer, and a rim. Below said sim, Passageway is connected to rim. The user's excreta fall onto passageway, and the dirt and dirty liquid will not splash, reducing the size of the path for odors, mosquitoes and flies to come out.

Description

SPLASH AND ODOR REDUCTION IN DRY TOILET

FIELD

The contents of this application generally involve waterless toilets, specifically composting toilets and portable toilets.

PRIOR ART

In the waterless toilet market, it is common to be able to see composting toilets and portable toilets. Both types of waterless toilets have an unpleasant odor and attract mosquitoes and flies, and portable toilets splash dirt and dirty liquid, which is annoying to users. We can make a waterless toilet that is better at reducing odor, flies and mosquitoes, as well as being splash-proof.

SUMMARY

A splash-proof odor reducing waterless toilet, comprising: a funnel-shaped soft passageway, abbreviated as passageway, the material of said passageway being a high polymer, and a rim, said passageway is connected to said rim, below said rim, the excreta of the user falls onto said passageway, and the dirt and dirty water will not splash, the said funnel-shaped passageway also reduces the size of the path for odors, mosquitoes and flies to come out.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

FIG. 1: Three views of the funnel-shaped soft passageway and the rim in the embodiments of this application.

FIG. 2: Rim outer wall and rim inner wall.

FIG. 3: The inner and outer walls of funnel-shaped soft passageway.

FIG. 4A- FIG. 4F: Shape of funnel-shaped soft passageway. Center position FIG. 4A ; off-center shapes FIG. 4B, FIG. 4C, FIG. 4D; simplified diagram of off-center shapes FIG. 4E; front and rear feces urine separating toilet array FIG. 4F.

FIG. 5A- FIG. 5G: The position of connection between funnel-shaped soft passageway and rim.

FIG. 6A- FIG. 6D: High polymer material and high polymer complexes; single-layer FIG.6A, double-layer FIG. 6B, multi-layer FIG. 6C, multi-layer FIG. 6D.

SPECIFICATIONS AND EMBODIMENTS

This application describes a waterless toilet that is capable of preventing the splashing of dirt and dirty water, as well as reducing odor, mosquitoes and flies. Regarding the funnel-shaped soft passageway made from high polymer material, the top end is large and the bottom end is small, or is of a similar funnel shape. The top end and the rim are connected together, with the other parts hanging below the rim. Before the excreta comes into contact with the dirt and dirty water, it is only able to fall on the said funnel-shaped soft passageway. This is a result of the funnel's limitations. Then, when the excreta fall into the dirt and dirty water, it will not splash, stopping the excreta from directly hitting the dirt and dirty water. The bottom end of the funnel is smaller than the top end, reducing the size of the path for mosquitoes, flies and odor to come out.

Step-by-step description of the contents described in this application:

The funnel-shaped soft passageway described in this application is soft because dirt does not easily stick to soft material. As everyone knows, if one applies two coats of plaster to a wall, the second coat will not hold and will slide down before the first coat has hardened. Based on the same principle, applying paint to materials of similar quality, such as plastic, rubber, thermoplastic elastomers, soft membranes is more difficult than to a sheet of hard material, even to the point where paint cannot be applied to soft material. We use this principle to explain why dirt do not easily stick to the funnel-shaped soft passageway. In contrast with hard material, the funnel-shaped soft passageway made from material of the same quality will not allow dirt to stick to it easily. The inner wall of the soft funnel-shaped passageway is steep and smooth; dirt will not stick to it easily.

The path taken by the excreta occurs in the following order: Rim, top end of passageway inner wall, bottom end of passageway inner wall. From the top end to the bottom end, the speed of the excreta is reduced. Finally, the excreta slides into the dirt and dirty liquid. It should be explained here that the speed of the excreta is reduced; however, the passageway inner wall is soft, steep and smooth, allowing the excreta to pass through easily.

The position of connection between said funnel-shaped soft passageway and rim may be the rim inner wall, or the rim outer wall, or it may clamp the rim inner wall and outer wall, with the rim inner wall clamped in place by the rim outer wall. To explain further, the position of connection with the rim may be a portion of the rim outer wall as well as the entire outer wall, and it may be a portion of the inner wall as well as the entire inner wall.

The connection method may be adhesive bonding, or thermal fusion, or clamping, or crimping, or adhesive bonding with additional crimping, or thermal fusion with additional crimping, or clamping with additional crimping, or clamping with additional adhesive bonding.

Said high polymer material may be soft plastic, or a soft plastic complex, or soft rubber, or a soft rubber complex, or thermoplastic elastomer, or a thermoplastic elastomer complex.

Said composite material may have a sandwich layer or surface layer made of reinforcing fibers. Said reinforcing fibers may be a single layer, or multiple layers.

EMBODIMENTS

Below are embodiments and their drawings, describing the implementation process in further detail

Embodiment 1: Funnel-shaped soft passageway 6 is connected to the rim inner wall in a shape as shown in FIG. 1. Passageway 6 is below rim 3, the top end of the funnel is large and the bottom end is small. The user's excreta are limited to only being able to fall on to the passageway 6, preventing splashing of dirt and dirty liquid and reducing odor.

Embodiment 2: FIG. 4A shows funnel-shaped soft passageway 6 formed into upright funnel-shaped passageway 6, which is in the center position of the oval-shape of rim 3. Upright funnel-shaped passageway 6 does not coincide with the path of the user's excreta, which will not cause splashing.

Embodiment 3: Funnel-shaped soft passageway 6 is formed into partial funnel-shaped passageway 6, which are all off-center from the center of the rim 3 shape, as shown in FIG. 4B, FIG. 4D and FIG. 4E. These partial funnel passageways 6 do not coincide with the path of the user's excreta, which will not cause splashing.

Embodiment 4: As shown in FIG. 4C, funnel-shaped soft passageway 6 coincides with the path of the user's excreta, which will cause splashing. Because the surrounding surface area of bottom end of passageway outer wall 612 as shown in FIG. 3, bottom end of passageway inner wall 622 as shown in FIG. 3 is limited, there is relatively little splashing.

Embodiment 5: As shown in FIG. 4F, the shape of front funnel passageway 6 and rear funnel passageway 6 array in the feces urine separation toilet coincides with the path of the user's excreta. Because the surrounding surface area of bottom end of passageway outer wall 612 as shown in FIG. 3, bottom end of passageway inner wall 622 as shown in FIG. 3 is limited, there is relatively little splashing.

Embodiment 6: As shown in FIG. 2, rim 3 has rim outer wall 31, rim inner wall 32. As shown in FIG. 3, passageway 6 has passageway outer wall 61, passageway inner wall 62, top end of passageway outer wall 611, bottom end of passageway outer wall 612, top end of passageway inner wall 621, and bottom end of passageway inner wall 622. As shown in FIG. 5A, top end of passageway inner wall 621 is connected to a portion of rim inner wall 32.

Embodiment 7: As shown in FIG. 5B, the top end of passageway inner wall 621 is connected to the whole rim inner wall 32.

Embodiment 8: As shown in FIG. 5C, the top end of passageway outer wall 611 is connected to a portion of rim inner wall 32.

Embodiment 9: As shown in FIG. 5D, the top end of passageway outer wall 611 is connected to the whole rim inner wall 32.

Embodiment 10: As shown in FIG. 5E, the top end of passageway outer wall 611 is connected to a portion of rim outer wall 31.

Embodiment 11: As shown in FIG. 5F, the top end of passageway outer wall 611 is connected to the whole rim outer wall 31.

Embodiment 12: As shown in Fig. 5G, the top end of passageway 6 is clamped to a portion of rim inner wall 32 and rim outer wall 31.

Embodiment 13: FIG. 6A shows single layer high polymer material. It can be materials such as soft polyvinyl chloride, polypropylene, natural rubber, silicone rubber, polychloroprene, thermoplastic elastomers, etc. They are single layer materials, and soft funnel-shaped passageway 6 can be made using these materials. Embodiment 14: FIG. 6B shows double layer high polymer material. It can be a complex of soft polyvinyl chloride and soft polypropylene, and it can also be a complex of natural rubber and polyvinyl chloride, or a complex of two thermoplastic elastomers, and reinforced fibers may act as one of the two layers. Soft funnel-shaped passageway 6 can be made using these materials.

Embodiment 15: FIG. 6C shows tri-layer high polymer material. It is the same as Embodiment 14, with the difference being that reinforced fibers may be used as a sandwich layer.

Embodiment 16: FIG. 6D shows quad-layer high polymer material. It is the same as Embodiments 14 and 15, with the difference being that multiple layers of reinforced fibers may be used; for example, reinforced fibers may act as a surface layer and a sandwich layer.

Embodiment 17: Polyvinyl chloride film is used to construct funnel-shaped soft passageway 6, which is soft and lightweight. Dirt and dirty liquid easily slide through passageway 6.

Embodiment 18: Expanded polyvinyl chloride is used to construct funnel-shaped soft passageway 6, which is soft and insulates from sound and heat. Dirt and dirty liquid easily slide through passageway 6.

Embodiment 19: Silicone rubber is used to construct funnel-shaped soft passageway 6, which is soft and insulates from sound and heat. Dirt and dirty liquid easily slide through passageway 6.

Embodiment 20: Thermoplastic elastomer is used to construct funnel-shaped soft passageway 6, which is soft and insulates from sound and heat. Dirt and dirty liquid easily slide through passageway 6.

Embodiment 21: Nylon film is used to construct funnel-shaped soft passageway 6, which is soft and lightweight. Dirt and dirty liquid easily slide through passageway 6.

Embodiments 22— 26: The materials used to construct funnel-shaped soft passageway 6 are: polybutadiene rubber (BR), styrene butadiene rubber (SBR), nitrile butadiene rubber (NBR), chloroprene rubber (CR), and ethylene propylene rubber.

Embodiments 27— 32: The materials used the construct funnel-shaped soft passageway 6 are: thermoplastic elastomers (TPE), styrenic block copolymers (TPE-s), thermoplastic olefins (TPE-o), elastomeric alloys (TPE-v), thermoplastic polyurethanes (TPU), thermoplastic copolyesters (TPE-E), and thermoplastic polyamides (TPE-A).

Embodiments 33— 35: The materials used the construct funnel-shaped soft passageway 6 are: two layers of polyvinyl chloride with an aramid fiber reinforcing layer sandwiched between them; A TPU layer and a polypropylene fiber reinforcing layer; A nylon reinforcing fiber layer and a nylon film layer, and a reinforcing fiber layer and a nylon film layer.

Embodiment 36: Rim 3 and funnel-shaped soft passageway 6 are connected using adhesive bonding. Afterwards, they are additionally crimped with a fastener.

Embodiment 37: Rim 3 and funnel-shaped soft passageway 6 are connected using thermal fusion. Afterwards, they are additionally crimped with a fastener.

Embodiment 38: Rim 3 and funnel-shaped soft passageway 6 are connected using clamping. Top ends of passageway 611 and 621 have a protruding ring, which is inserted into notch of rim 3. Afterwards, they are crimped with a fastener or adhesive is added.

Claims

1. A splash-proof odor reducing waterless toilet, comprising:

a funnel-shaped soft passageway, hereafter referred to as passageway, the material of said passageway being high polymer;

a rim;

said passageway is connected to said rim, below said rim, the excreta of the user falls onto said passageway, and the dirt and dirty water will not splash, the said funnel-shaped passageway also reduces the size of the path for odors, mosquitoes and flies to come out.

2. Based on the splash-proof odor reducing waterless toilet as said in claim 1, said passageway may be a upright funnel-shaped passageway or a partial funnel-shaped passageway, or it may be an array of a front funnel-shaped passageway and a rear funnel-shaped passageway in the shape of a feces urine separating toilet.

3. Based on the splash-proof odor reducing waterless toilet as said in claim 1, the position of connection between said passageway and said rim may be the rim inner wall, or the rim outer wall, or it may clamp the rim inner wall and outer wall; the connection method may be adhesive bonding, or thermal fusion, or clamping, or crimping, or adhesive bonding with additional crimping, or thermal fusion with additional crimping, or clamping with additional crimping, or clamping with additional adhesive bonding.

4. Based on the splash-proof odor reducing waterless toilet as said in claim 1, said high polymer material may be soft plastic, or soft rubber, or thermoplastic elastomer, or it may be a composite material of the aforementioned three materials, said composite material may have a sandwich layer or surface layer made of reinforcing fibers.