Squatting pan structure with rear-mounted siphon blow-off pipe

Abstract

The utility model discloses a rear-mounted siphon blow-off pipe squatting pan structure which comprises a squatting pan body, a water guide ring, a washing hole, a frame, a bedpan bottom, a jet water guide pipe, a jet hole, a blow-off inlet, a blow-off pipe water storage section, a blow-off outlet, a blow-off pipe water resistance section, a water seal clamp, a blow-off pipe negative pressure section, a water inlet and a water inlet guide pipe. The squatting pan is mainly characterized in that a blow-off pipe negative pressure section and a water seal clamp are arranged at the rear part of a squatting pan main body, so that enough height is formed behind the water seal clamp to design a blow-off pipe water resistance section, and strong water flow jetted from a jet hole is utilized to quickly enable the blow-off pipe negative pressure section to form larger negative pressure under the action of the blow-off pipe water resistance section; and visceral water and dirt at a sewage discharge inlet can be quickly and completely sucked away, so that the siphon effects of deeper bedpan bottom, silence, water saving and complete replacement are realized.

Description

Technical Field

[0001] This utility model relates to a sanitary ware, and more particularly to a squat toilet structure in which a negative pressure section of the drain pipe and a water seal are set at the rear of the main body of the squat toilet, and the water seal is designed with sufficient height after the water seal to create a water resistance section of the drain pipe. The strong water flow from the jet hole can quickly create a large negative pressure in the negative pressure section of the drain pipe under the action of the water resistance section, and quickly suck away all the dirty water and dirt in the drain inlet, thereby achieving a deeper toilet bottom and a quiet, water-saving, and completely siphon-like effect. Background Technology

[0002] Most squat toilets on the market today with a water trap have the drain pipe centrally located under the bottom of the bowl. Since the depth of building sinkholes is generally only about 400 mm, and the building's pre-installed drain outlet must be 80 mm away from the bottom of the sinkhole, there are mandatory standards for the diameter of the drain pipe and the water depth at the bottom of the bowl. Furthermore, considering the installation of a 110 mm diameter horizontal drain pipe, the total height of the ceramic bowl should, in principle, not exceed 210 mm; otherwise, it cannot be installed. Therefore, the bottom of squat toilet bowls on the market is very shallow, generally only 70-90 mm.

[0003] Because the drain pipe of a squat toilet with a water trap is located in the center under the bottom of the bowl, and the total height of the ceramic body is limited by the depth of the sink, the drain pipe must be designed to be very short. The drain inlet and outlet cannot form a water level difference, therefore a direct-fall flushing method must be used. The direct-fall flushing method involves maintaining a fixed depth of water at the bottom of the bowl, using high pressure and a large flow of water to forcefully displace the waste from the bowl. The main reason for using the direct-fall flushing method is the limited height of the drain pipe. To ensure smooth drainage, the diameter of the drain pipe is designed to be very large; for example, the drain pipe outlet diameter of squat toilets is consistently 70 mm. Based on our years of product feedback, the current direct-fall squat toilets on the market mainly have the following pain points:

[0004] 1. The basin is too shallow. If the basin is shallow, people may worry that a lot of feces will hit their buttocks when using the toilet; water droplets are easy to splash onto the panel when rinsing; urine will splash onto the panel when urinating while standing; and water will splash back onto the panel when it encounters dirt at the bottom of the basin during rinsing.

[0005] 2. Small water surface area. When the water surface area at the bottom of the basin is small, it is very difficult to clean the dried bottom of the basin after it gets covered with feces. You have to use a brush to scrub it after each use to solve the problem. When there is no water at the bottom of the basin, the feces cannot slide to the deep water area, and the exposed feces smell very bad.

[0006] 3. Low replacement rate. Direct-flow replacement requires a strong downward flow of water across the entire water surface to remove dirty water and debris. Due to the limited flow and pressure of the water supply system, this requirement is clearly not met. Therefore, it often requires several flushes to thoroughly clean the basin. This is also why the water storage area of ​​the basin cannot be designed to be large.

[0007] 4. High noise level. Direct-flow flushing requires a strong water flow pressing down across the entire water surface to remove dirty water and debris. This requires both high pressure and high flow rate, which inevitably generates a lot of noise during flushing, with some noise levels reaching 75 decibels.

[0008] 5. High water consumption. Direct-flow flushing involves a forceful downward pressure of water throughout the entire process; this pressure must be strong and sustained for a considerable period to ensure proper flushing and removal of waste. Therefore, current squat toilets require approximately 6 liters of water per use.

[0009] 6. Floating debris is difficult to remove. In products using a direct-flow replacement method, the water depth at the sewage inlet remains essentially constant; all dirty water and debris must be forcibly pushed down and replaced by the water flow. If there is a small area on the water surface with low water pressure, floating debris will float on the surface and swirl around, refusing to be removed even after several rinses. This is especially true for cigarette butts, small pieces of toilet paper, and floating feces.

[0010] The root cause of the above problems is that the sewage pipe of the squat toilet is located in the center of the bottom of the toilet bowl. The depth of the bottom of the toilet bowl directly determines the height of the sewage pipe structure. Due to the limitation of the total depth of the sink, the total height of the squat toilet determines the total height of the sewage pipe structure, which leads to the only option of a direct-fall replacement method, resulting in so many drawbacks.

[0011] Considering the advantages of siphon toilets in terms of replacement method, we have made the following modifications to the existing squat toilets with water traps. Utility Model Content

[0012] This utility model relates to a sanitary ware, and more particularly to a squat toilet structure in which a negative pressure section of the drain pipe and a water seal are set at the rear of the main body of the squat toilet, and the water seal is designed with sufficient height after the water seal to create a water resistance section of the drain pipe. The strong water flow from the jet hole can quickly create a large negative pressure in the negative pressure section of the drain pipe under the action of the water resistance section, and quickly suck away all the dirty water and dirt in the drain inlet, thereby achieving a deeper toilet bottom and a quiet, water-saving, and completely siphon-like effect.

[0013] We know that siphon toilets utilize the water level difference between the drain inlet and outlet. Under atmospheric pressure, the water resistance at the end of the drain pipe creates negative pressure in the middle section, drawing all the dirty water and debris from the drain inlet in. This achieves water-saving, quiet operation, and complete waste removal. Current squat toilets with water traps cannot be designed with siphon drain pipes due to insufficient pipe height, and the adoption of a direct-fall flushing method forces them to make the end of the drain pipe very thick.

[0014] The above-mentioned technical problem of this utility model is solved by providing a rear-mounted siphon sewage pipe squat toilet structure, which includes: a squat toilet body, a water guide ring, a washing hole, a frame, a toilet bowl bottom, a jet water guide pipe, a jet hole, a sewage inlet, a sewage pipe water storage section, a sewage outlet, a sewage pipe water resistance section, a water seal clip, a sewage pipe negative pressure section, a water inlet, and a water inlet guide pipe. The key feature is that the sewage pipe negative pressure section and the water seal clip are located at the rear of the squat toilet body, ensuring sufficient height after the water seal clip for the sewage pipe water resistance section. The strong water flow from the jet hole, under the action of the sewage pipe water resistance section, quickly creates a large negative pressure in the sewage pipe negative pressure section, rapidly sucking away all the dirty water and debris from the sewage inlet, thereby achieving a deeper toilet bowl bottom and a quiet, water-saving, and completely displacement siphon effect.

[0015] Optionally, the negative pressure section of the sewage pipe and the water seal card are located either directly behind the main body of the squat toilet, or slightly to the left or right of the rear of the main body of the squat toilet, or on the left or right side of the frame of the main body of the squat toilet.

[0016] Optionally, the diameter of the negative pressure section, water resistance section, and outlet of the sewage pipe shall be controlled between 41 and 58 mm.

[0017] Optional: The shape and structure of the sewage pipe water resistance section are not limited, or a rigid plastic pipe and a ceramic pipe can be used for connection and installation.

[0018] Optionally, the diameter of the spray hole is controlled within 20-35 mm, and its specific location within the water surface of the sewage inlet is not limited.

[0019] Optionally, the water jet pipe may be supplied with water either by the frame or the water guide ring, or directly by the water inlet.

[0020] Compared with existing squat toilets on the market with water traps, this utility model of a rear-mounted siphon sewage pipe squat toilet has the following advantages in terms of structure and function:

[0021] 1. This solves the problem of designing a siphon-type sewage pipe. Currently available squat toilets with water traps are limited by the depth of the sink; the total height of the toilet cannot exceed 210 mm, otherwise it cannot be installed. Designing a sewage pipe under the toilet bowl is also limited by the bowl's depth, meaning the pipe cannot have a sufficient length for a water-resistance section. Without a water-resistance section, the negative pressure section cannot generate negative pressure, thus failing to create a siphon effect. Therefore, a direct-fall displacement method must be used. This method requires smooth drainage, necessitating a relatively large sewage outlet, typically around 70 mm in diameter. This utility model of a rear-mounted siphon sewage pipe squat toilet structure places the sewage pipe negative pressure section and water seal card at the rear of the squat toilet body, so that there is enough height after the water seal card to design the sewage pipe water resistance section, and the overall diameter of the sewage pipe is controlled between 41 and 58 mm. The strong water flow from the jet hole can quickly create a large negative pressure in the sewage pipe negative pressure section under the action of the sewage pipe water resistance section, thereby quickly forming a siphon effect at the sewage inlet.

[0022] 2. This invention solves the problems of shallow toilet bowl bottoms and small water surface areas. Currently, the total height of squat toilets with water traps on the market cannot exceed 210 mm, and there are mandatory standards for the diameter of the drain pipe and the water depth at the drain inlet, resulting in a toilet bowl bottom depth of only 70-90 mm. Furthermore, because only a direct-fall flushing method can be used, the water surface cannot be large enough; otherwise, the water flow force is dispersed during flushing, leading to extremely poor flushing effect. This utility model's rear-mounted siphon drain pipe squat toilet structure places the negative pressure section of the drain pipe and the water seal at the rear of the squat toilet body. The depth of the toilet bowl bottom is no longer limited by the height of the drain pipe, increasing it to approximately 130 mm, providing excellent splash prevention during flushing. Simultaneously, due to the siphon effect, dirty water and waste are drawn in under negative pressure, so the size of the water surface does not significantly affect the flushing effect. Appropriately widening and lengthening the water surface area avoids the problems of feces sticking to the bottom of the bowl and exposed feces causing odor.

[0023] 3. Solves the problem of loud flushing noise. Current squat toilets with water traps on the market all use a direct-fall flushing method, requiring high water pressure and a large water flow to flush away waste and achieve flushing. The water flow impacting the water surface generates significant splashing and a loud water impact sound, resulting in considerable noise. The louder the noise, the better the flushing effect. This utility model's rear-mounted siphon drain squat toilet replaces the drain pipe with a siphon drain pipe. Although the water flow from the jet nozzle is rapid, it provides auxiliary flushing while the water is still in the reservoir, thus eliminating noise. As for the water flow from the wash nozzle, we can use flow restriction to reasonably control the noise without affecting the flushing effect. Direct-fall flushing typically produces over 70 decibels of noise, while siphon flushing can control the noise to around 50 decibels.

[0024] 4. Solves the problem of high water consumption. Current squat toilets with water traps on the market are all direct-fall flushing systems, requiring high pressure, a large water flow, and a long time to forcefully displace waste. When the water flow decreases, the waste returns, so each flush requires at least 6 liters of water. This new type of squat toilet with a rear-mounted siphon drain pipe places the negative pressure section of the drain pipe and the water seal at the rear of the toilet body. This design provides sufficient height after the water seal for the drain pipe's water resistance section, creating a strong siphon effect. Only slightly more than 3 liters of water are needed to completely displace the waste in the toilet bowl.

[0025] 5. Solves the problem of incomplete waste removal. Current squat toilets with water traps on the market, due to the drain pipe being designed below the toilet bowl, can only use a direct-fall replacement method. High pressure and a large water flow, if unevenly distributed or the strong pressure lasts too short, cannot remove waste, especially floating debris. This utility model's rear-mounted siphon drain squat toilet structure places the negative pressure section of the drain pipe and the water seal at the rear of the squat toilet body. This allows for sufficient height after the water seal to design a water resistance section in the drain pipe, quickly creating a siphon effect at the drain inlet. With less water, all the dirty water and waste at the bottom of the toilet bowl can be siphoned out, resulting in a complete and thorough replacement. Attached Figure Description

[0026] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the structure of the squat toilet with a rear-mounted siphon sewage pipe according to this utility model.

[0028] In the diagram: 1—Squat toilet body, 2—Water guide ring, 3—Washing hole, 4—Frame, 5—Bottom of the toilet bowl, 6—Jet water guide pipe, 7—Jet hole, 8—Sewage inlet, 9—Sewage pipe water storage section, 10—Sewage outlet, 11—Sewage pipe water resistance section, 12—Water seal clip, 13—Sewage pipe negative pressure section, 14—Water inlet, 15—Water inlet guide pipe. Detailed Implementation

[0029] Figure 1 This illustration shows a specific embodiment of the rear-mounted siphon sewage pipe squat toilet structure of this utility model. A toilet bowl bottom 5 is formed within the frame 4 of the squat toilet body 1. A water guide ring 2 is located along the upper edge of the toilet bowl bottom 5. A washing hole 3 is drilled on the inner side of the water guide ring 2. A sewage inlet 8 is formed at the bottom of the toilet bowl bottom 5. A jet nozzle 7 is opened below the water inlet 8, spraying water towards the water storage section 9 of the sewage pipe. The jet nozzle 7 is supplied with water from the frame 4, the water guide ring 2, and the jet water guide pipe 6. A water seal 12, a sewage pipe negative pressure section 13, a sewage pipe water resistance section 11, and a sewage outlet 10 are all formed on the rear side of the squat toilet body 1. A water inlet 14 is directly connected to the frame 4, and a water inlet pipe 15 connects the water inlet 14 to the water guide ring 2.

[0030] In the specific implementation process, we can also make the following modifications:

[0031] 1. The negative pressure section 13 of the sewage pipe and the water seal card 12 are located either directly behind the squat toilet body 1, or slightly to the left or right of the squat toilet body 1, or on the left or right side of the frame 4 of the squat toilet body 1, as long as they are free from the constraint of the toilet bowl bottom 5 on the height of the water seal card 12 and the pipe thereafter.

[0032] 2. The diameters of the negative pressure section 13, the water resistance section 11, and the sewage outlet 10 of the sewage pipe are controlled between 41 and 58 mm. This is because the diameter of the sewage outlet 10 must meet the national standard requirement of 41 mm. If the sewage outlet 10 is too large, the inlet 14 will not meet the requirements for flow rate and pressure.

[0033] 3. The shape and structure of the sewage pipe water resistance section 11 are not limited, or a rigid plastic pipe can be used to connect and install it with the ceramic pipe. Because the sewage pipe water resistance section 11 is a suspended structure, the ceramic molding mold is relatively complex. We can consider an external connection method to simplify the ceramic molding process.

[0034] 4. The diameter of the jet orifice 7 is controlled within 20-35 mm, and its specific location within the water surface at the sewage inlet is not restricted. Because the flow rate and velocity of the jet orifice 7 are closely related to the siphon effect, and its location also significantly affects the formation of negative pressure in the pipeline, the specific location must be determined based on the actual situation.

[0035] 5. The water jet pipe 6 is supplied with water either by the frame 4 and the water guide ring 2, or directly by the water inlet 14. This depends on the actual situation of mold development.

[0036] After using the toilet, when the user presses the water tank button, the inlet 14 fills the frame 4 and the water guide ring 2 with water, and the spray guide pipe 6 begins to supply water to the spray holes 7. At this time, the scrubbing holes 3 begin to scrub, and the strong water flow in the spray holes 7 carries the dirty water and debris from the drain inlet 8 through the drain pipe storage section 9, past the water seal 12, and fills the negative pressure section 13 of the drain pipe. When the water flow reaches the water resistance section 11 of the drain pipe, the flow is initially slightly obstructed. Later, due to the water level difference between the drain inlet 8 and the drain outlet 10, the flow rate increases. At this time, a strong negative pressure is formed in the negative pressure section 13 of the drain pipe, thus creating a strong siphon force at the drain inlet 8. The dirty water and debris are immediately sucked in and discharged from the drain outlet 10.

[0037] Logically, the structure of this utility model of a rear-mounted siphon sewage pipe squat toilet can also have various variations and modifications, and is not limited to the specific structure of the above-described embodiments, such as the various changes in the generation form of the water resistance section of the sewage pipe and the overall layout of the sewage pipe. In short, the protection scope of this utility model of a rear-mounted siphon sewage pipe squat toilet should also include those exchanges, substitutions, and modifications that are obvious to those skilled in the art.

Claims

1. A squat toilet structure with a rear-mounted siphon drain pipe, comprising a squat toilet body, a water guide ring, a washing hole, a frame, a toilet bowl bottom, a jet water guide pipe, a jet hole, a sewage inlet, a sewage pipe water storage section, a sewage outlet, a sewage pipe water resistance section, a water seal clip, a sewage pipe negative pressure section, a water inlet, and a water inlet guide pipe, characterized in that: The sewage pipe water storage section (9) and water seal card (12) are set at the rear of the squat toilet body (1). The sewage pipe water resistance section (11) is designed with sufficient height after the water seal card (12). The strong water flow from the jet hole (7) can quickly create a large negative pressure in the sewage pipe negative pressure section (9) under the action of the sewage pipe water resistance section (11), and quickly suck away all the dirty water and dirt in the sewage inlet (8), thereby achieving a deeper toilet bottom (5) and a silent, water-saving, and completely replaced siphon effect.

2. The squat toilet structure with a rear-mounted siphon sewage pipe according to claim 1, characterized in that: The location of the drain pipe water storage section (9) and water seal card (12) is either directly behind the squat toilet body (1), or slightly to the left or right of the squat toilet body (1), or on the left or right side of the frame (4) of the squat toilet body (1).

3. The squat toilet structure with a rear-mounted siphon sewage pipe according to claim 1, characterized in that: The diameters of the negative pressure section (13), water resistance section (11), and outlet (10) of the sewage pipe are controlled between 41 and 58 mm.

4. The squat toilet structure with a rear-mounted siphon sewage pipe according to claim 1, characterized in that: The shape and structure of the sewage pipe water resistance section (11) are not restricted, or a hard plastic pipe and a ceramic pipe can be used for connection and installation.

5. The squat toilet structure with a rear-mounted siphon sewage pipe according to claim 1, characterized in that: The diameter of the spray hole (7) is controlled within 20-35 mm, and its specific location within the water surface of the sewage inlet (8) is not restricted.

6. The squat toilet structure with a rear-mounted siphon sewage pipe according to claim 1, characterized in that: The spray water pipe (6) is supplied with water either by the frame (4) and the washing hole (3) or directly by the water inlet (14).

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