Water-saving toilet bowl

Abstract

A kind of water-saving toilet, by the characteristics of hose cross section easy to change, open straight water-saving, closed reliable odor. By the space under the basin to store feces and its flushing and wash basin drainage to building sewage horizontal pipe, solve the contradiction of insufficient amount of water to flush building sewage horizontal pipe due to the small amount of water to flush the toilet bowl, save water while ensuring the flushing effect. Cancel the water seal tank in front of the toilet bowl drain, eliminate the flushing dead angle to improve the flushing efficiency. No feces splashing water, and use a micro air blower to eliminate the unpleasant smell of feces. Cancel the traditional water tank, with tap water directly to flush, improve the flushing effect and reduce the cost.

Description

Technical Field

[0001] This invention relates to toilets, and more particularly to a water-saving toilet. Background Technology

[0002] Existing patents for flexible hose toilets use hoses similar to rubber hoses, which are flexible but not easily deformable in cross-section. The principle involves using a mechanical device to switch the hose between a straight drain pipe and a trap, but this design is complex and unreliable, requiring improvement. Another common problem with current water-saving toilets is that while less water is needed to flush the toilet bowl, when the toilet is a certain distance from the building's sewage riser, this small amount of water is insufficient to flush waste into the riser, causing blockages in the horizontal drain pipe. This contradiction between water conservation and flushing horizontal drain pipes must also be addressed. Summary of the Invention

[0003] The solution to the above problems is as follows: a flexible, durable, water-repellent, non-sticky, and laterally elastic hose with permanent indentations on both sides to allow the front and back surfaces to adhere to a single plane. The upper end of the hose connects to the toilet bowl's drain outlet, while the other end runs down a rigid pipe with a rectangular cross-section. Below the flexible and rigid pipes, a bottomless, perforated stainless steel mesh cylinder is fixed to the base plate, enclosing the toilet's drain outlet. A short pipe connects to the drain outlet, located within the building's main sewage system. This short pipe has a solenoid valve at its lower end, allowing urine, feces, flushing water, and wastewater from the sink to accumulate in the space under the toilet bowl and within the short pipe. Feces are confined within the perforated cylinder and the short pipe connected to the drain outlet. When the water volume reaches approximately 9L, the water pressure opens the solenoid valve, allowing sufficient water to flush feces into the main sewage system, even in cases where the horizontal sewage pipe is long. This method of centralized flushing, where small amounts of waste are collected in a concentrated manner, resolves the inherent contradiction that the small volume of water used to flush the toilet bowl in water-saving toilets leads to insufficient water flow in the building's horizontal sewage pipes. A miniature fan is installed in this project to draw the foul air from the toilet bowl into the sewer pipes and ultimately expel it into the atmosphere, preventing it from disturbing others. The water seal groove in the toilet bowl is eliminated, thereby increasing the flushing angle, eliminating blind spots, saving water, and improving flushing efficiency.

[0004] The beneficial effects of this invention are: both urination and defecation are discharged directly through a flexible hose, saving water; and the wastewater from urination, defecation, flushing, and washing basins is used to centrally flush waste from the building's horizontal sewage pipes, resolving the contradiction that water-saving toilets save water when flushing toilet bowls, resulting in insufficient water volume for flushing waste from the building's horizontal sewage pipes. This invention eliminates the drawbacks of splashing water and disturbing noise and odor from defecation. The flexible hose used in this invention is made of high-strength, durable composite materials and is specially manufactured to meet all technical requirements. It is technically simple, and because it is subjected to low stress during use and the frequency of use is relatively low, it has a long service life and is easy to replace. Attached Figure Description

[0005] Figure 1 This is a top view of the toilet. Figure 2 This is a longitudinal section view (1-1). In the diagram, 1---toilet drain outlet, 2---guide rigid pipe, 3---composite flexible hose, 4---flexible hose clamp, 5---clamp outlet plane, 6---elastic soft magnetic strip, 7---bottomless stainless steel mesh cylinder, 8---toilet drain hole, 9---building sewage short pipe, 10---short pipe with sealing ring, 11---sealing ring, 12---sonic valve, 13---space under the basin, 14---exhaust vent, 15---corrugated pipe, 16---mini exhaust fan, 17---connecting pipe, 18---urine nozzle, 19---three-way switch, 20---fecal nozzle, 21---exhaust fan vent, 22---installation and maintenance door, 23---washbasin wastewater pipe, 24---lower opening of connecting pipe. Detailed Implementation

[0006] The toilet bowl's drain outlet 1 is a horizontally oriented rectangle, relatively wide, allowing for easy passage of feces. A rigid guide tube 2 with the same cross-section descends from behind the drain outlet. A thin, flexible, and non-sticky flexible tube 3, impermeable to water and air, has elastic walls that can easily expand and contract laterally. A simple process creates permanent creases on both sides of the tube, facilitating the sealing of the opening by ensuring the front and rear walls fit together. When flushed, the tube is a flat strip with its front and rear sides touching; when flushed, it expands into a tube shape. The upper end of the tube is secured to the drain outlet 1 with a clip 4, and the tube body descends from the outlet 5, flat against the slightly forward-leaning front wall of the rigid guide tube 2. The lower end of the flexible tube has two pairs of elastic magnetic strips 6 on its outer surface. These magnetic strips can expand and contract laterally with the deformation of the tube's cross-section, naturally adhering to a straight, magnetically attached shape. Their length is equal to the width of the tube when its front and rear sides are touching. When not flushed, the front and rear walls of the tube naturally adhere, and the magnetic strips prevent foul air from below. When flushing, the hose expands, the magnetic strip separates, and wastewater flows down. The guide tube 2 and hose 3 descend from the toilet bowl drain outlet 1 to the top of a bottomless cylindrical tube 7 made of stainless steel mesh. The cylindrical tube 7 is fixed to the base plate, enclosing the lowest toilet drain hole 8 on the base plate. Below the drain hole 8, in the building's short drain pipe 9, the short tube 10 is connected to the toilet drain hole 8 by a sealing ring 11 bonded around it. A magnetic valve 12 is installed at the lower end of the short tube 10; in its natural state, it closes, storing wastewater in the space 13 under the toilet bowl and the short tube 10, while feces are confined within the mesh cylinder 7 and the short tube 10. When the water level reaches a set value, the magnetic valve opens under water pressure, and the stored feces are flushed through the building's horizontal drain pipe and discharged into the riser. This invention features a hole 14 in the rear wall of the toilet bowl, through which a miniature exhaust fan 16 with a check valve is connected via a corrugated pipe 15. The exhaust fumes from the toilet bowl during defecation are drawn into the space 13 beneath the bowl via an air outlet 21, and then discharged into the building's sewage pipe through the lower opening 24 of a connecting pipe 17 that connects the space beneath the bowl to the building's sewage pipe 9. Pipe 17 connects the space beneath the bowl 13 to the outside, balancing the air pressure inside and outside the space and ensuring smooth water flow. This invention eliminates the need for a water tank and instead features a self-flowing urination nozzle 18 located below the rim at the rear of the toilet bowl. After urination, turning the three-way switch 19 ejects a high-speed, fine stream of water along the bowl wall for flushing. Since urine has already been drained into the bowl through a flexible hose before flushing, only a small amount of water is needed to clean the bowl wall. A separate self-flowing defecation nozzle 20 is located below the rim at the front of the bowl. Turning the three-way switch 19 ejects a rapid stream of water to both sides, primarily downwards, flushing the feces into the flexible hose and downwards. This invention eliminates the water seal groove in front of the toilet bowl's drain outlet, removing dead zones during flushing. Combined with the enlarged drain outlet, this facilitates smooth waste discharge from the toilet bowl. A sink drain pipe 23 is located at the front end of the space under the toilet bowl, allowing water to flush the base plate and prevent fecal matter accumulation. An access door 22 is installed on the rear side wall of the toilet.

Claims

1. A water-saving toilet, comprising a toilet bowl and a water supply and drainage system, characterized in that: One end of a flexible hose connects to the toilet bowl's drain outlet, while the other end hangs down above the drain hole on the toilet bowl's base. A short pipe connects to the drain hole, and a solenoid valve is installed at the bottom of the short pipe. This allows urine, feces, flushing water, and wastewater from the sink to be collected in the space under the toilet bowl and in the short pipe below the drain hole, forming an odor-proof direct discharge and wastewater collection and utilization system.

2. A water-saving toilet according to claim 1, characterized in that: The flexible hose is waterproof, thin, flexible, and has a smooth, non-sticky inner wall. Its elastic wall can easily expand and contract laterally. There are permanent creases on both sides of the hose, which facilitates the fit between the hose walls and the opening. When there is no water, the hose narrows into a flat strip shape with the front and back sides fitting together. When water passes through, it expands into a tubular shape.

3. A water-saving toilet according to claim 1, characterized in that: A stainless steel mesh cylinder is fixed to the base plate, enclosing the lowest-positioned drain hole.

4. A water-saving toilet according to claim 1, characterized in that: The toilet is equipped with a miniature exhaust fan with a check valve.

5. A water-saving toilet according to claim 1, characterized in that: The toilet bowl is equipped with direct-flow water jets at both the front and rear.

6. A water-saving toilet according to claim 1, characterized in that: Eliminating the water seal groove in the toilet bowl eliminates dead zones in flushing and improves flushing efficiency.

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