Squatting pan structure with rear-mounted siphon blow-off pipe
By setting up a negative pressure section of the sewage pipe and a water sealing card at the back of the main body of the squat toilet, and designing a water resistance section with a sufficient height, and spraying strong water flow into a negative pressure using the injection hole, the problem that the existing toilets cannot design a siphon sewage pipe, achieving a complete siphon effect of silent, water-saving and replacement.
Patent Information
- Application Number
- CN202411704399.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-03-07
AI Technical Summary
Since the sewage pipe is designed to be centered under the toilet bowl, due to the total height and the depth of the sinking pool, it is impossible to design a siphon sewage pipe, resulting in shallow bottom of the basin, small water storage surface, low replacement rate, high noise, large water consumption and difficult to replace floating objects.
The negative pressure section of the sewage pipe and the water sealing card are arranged at the back of the main body of the squat toilet, and a sufficiently high water resistance section of the sewage pipe is designed. Strong water flow is sprayed with the jet hole, which forms a large negative pressure under the action of the water resistance section, quickly absorbs dirt and achieves a siphon effect.
It achieves a deep potty bottom, silent, water-saving and complete replacement of siphon effect, solving the problems of shallow pot bottom, small water storage surface, high noise, large water consumption and difficult to replace floating objects.
Smart Images
Figure CN119571904A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a sanitary ware, and in particular to a sewage pipe negative pressure section and a water seal card arranged at the rear of a squat toilet body, so that a sewage pipe water resistance section is designed at a sufficient height behind the water seal card, and the strong water flow energy ejected from the ejection hole is used to quickly form a large negative pressure in the sewage pipe negative pressure section under the action of the sewage pipe water resistance section, so that all the dirty water and dirt in the sewage inlet are quickly sucked away, thereby realizing a rear-mounted siphon sewage pipe squat toilet structure with a deeper toilet bowl bottom and a silent, water-saving, and completely replaced siphon effect. Background Art
[0002] More than 90% of users in southern my country use squat toilets. If we only calculate based on 500 million housing units, a conservative estimate is that there are more than 300 million squat toilets in the country.
[0003] The common squat toilets with water traps on the market now all have the sewage pipe designed in the center of the bottom of the toilet bowl. Since the depth of the sinking pool of a building is generally only about 400 mm, and the sewage interface reserved by the building must be 80 mm away from the bottom of the sinking pool, there are national mandatory standards for the diameter of the sewage pipe and the depth of the water storage at the bottom of the basin, and the installation of a 110 mm thick horizontal sewage pipe must be considered, the total height of the ceramic should not exceed 210 mm in principle, otherwise it cannot be installed. Therefore, the bottom of the squat toilets on the market now is very shallow, generally only 70-90 mm.
[0004] Since the sewage pipe of the squat toilet with a water trap is designed to be in the center below the bottom of the toilet bowl, and the total height of the ceramic body is restricted by the depth of the sinking tank, the sewage pipe can only be designed to be very short, and the sewage inlet and the sewage outlet cannot form a water level difference, so only the straight-drop replacement method can be used. The so-called straight-drop replacement method is that there is always a fixed depth of water at the bottom of the toilet bowl, and a large pressure and a large amount of water flow are used to flush the water surface to forcibly replace the dirty water and dirt in the toilet bowl. The main reason why people use the straight-drop replacement method is that the height of the sewage pipe is limited. In order to ensure the smooth discharge of dirty water and dirt, the diameter of the sewage pipe is designed to be very thick. For example, the outlet diameter of the sewage pipe of the squat toilet is always 70 mm. According to our many years of product information feedback, the current straight-drop squat toilets on the market have the following pain points:
[0005] 1. The basin bottom is too shallow. When people use the basin bottom, they worry that the stool will hit their buttocks; when flushing, water droplets will easily splash onto the panel; when standing to urinate, urine will splash onto the panel; when the flushing process encounters obstacles from the basin bottom, the water will splash back onto the panel.
[0006] 2. Small water storage area. When the water storage area at the bottom of the basin is small, the dry basin bottom is very difficult to clean after being stained with feces. You must use a brush to clean it after each use of the toilet 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 are very smelly.
[0007] 3. Low replacement rate. The vertical replacement requires a strong water flow to press down on the entire water storage surface to replace the dirty water and dirt. Due to the limited flow and pressure of the water supply system, this requirement is obviously not met. Therefore, it often takes several flushes to flush the dirt in the basin. This is also the reason why the water storage area in the basin cannot be designed to be large.
[0008] 4. Loud noise. The vertical displacement must have a strong water flow pressing down on the entire water storage surface to displace the dirty water and dirt. It requires both high pressure and large flow. The noise generated during flushing is bound to be very loud, and the higher noise can reach 75 decibels.
[0009] 5. High water consumption. The vertical displacement is a whole process of forced downward pressure of water flow. The downward pressure must be strong and last for a period of time, otherwise the dirty water and dirt cannot be replaced. Therefore, the current squat toilet must consume nearly 6 liters of water.
[0010] 6. Floating objects are difficult to replace. The water storage depth of the sewage inlet of the direct-drop replacement product is basically unchanged, and all dirty water and dirt must be forced down by the water flow to be replaced. If there is a small area on the water storage surface with low water flow pressure, floating objects will float on the surface and turn back and forth, and cannot be flushed away even after several flushes, especially cigarette butts or small pieces of toilet paper, floating feces are more difficult to flush.
[0011] The fundamental reason for the above problems is that the sewage pipe of the squat toilet is generated in the central position 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 sedimentation tank, the total height of the squat toilet determines the total height of the sewage pipe structure, resulting in the use of a straight-drop replacement method, which in turn causes so many disadvantages.
[0012] Considering the advantages of siphon toilets over replacement methods, we have made the following modifications to the structure of the existing squat toilet with a trap. Summary of the invention
[0013] The present invention relates to a sanitary ware, and in particular to a sewage pipe negative pressure section and a water seal card arranged at the rear of a squat toilet body, so that a sewage pipe water resistance section is designed at a sufficient height behind the water seal card, and the strong water flow energy ejected from the ejection hole is used to quickly form a large negative pressure in the sewage pipe negative pressure section under the action of the sewage pipe water resistance section, so that all the dirty water and dirt in the sewage inlet are quickly sucked away, thereby realizing a rear-mounted siphon sewage pipe squat toilet structure with a deeper toilet bowl bottom and a silent, water-saving, and completely replaced siphon effect.
[0014] We know that the replacement method of siphon toilets is to use the water level difference between the sewage inlet and the sewage outlet. Under the action of atmospheric pressure, the water resistance section at the end of the sewage pipe forms a negative pressure in the negative pressure section in the middle of the sewage pipe to suck in all the dirty water and dirt at the sewage inlet, thereby achieving water-saving, quiet, and complete sewage replacement effects. The current squat toilet with a water trap cannot be designed with a siphon sewage pipe because the sewage pipe is not high enough. After adopting the straight-down replacement method, it is forced to make the end of the sewage pipe very thick.
[0015] The above technical problem of the present invention is solved by providing a rear-mounted siphon sewage pipe squat toilet structure as follows, which comprises: 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 card, a sewage pipe negative pressure section, a water inlet, and a water inlet water guide pipe, characterized in that: the sewage pipe negative pressure section and the water seal card are arranged at the rear of the squat toilet body, so that the sewage pipe water resistance section is designed at a sufficient height behind the water seal card, and the strong water flow energy ejected from the jet hole is used to quickly form a large negative pressure in the sewage pipe negative pressure section under the action of the sewage pipe water resistance section, so that all the dirty water and dirt in the sewage inlet are quickly sucked away, thereby achieving a deeper toilet bowl bottom and a siphon effect of quiet, water-saving, and complete replacement.
[0016] Optionally: the negative pressure section of the sewage pipe and the water seal card are arranged either directly behind the squat toilet body, or to the left or right of the rear of the squat toilet body, or on the left or right side of the frame of the squat toilet body.
[0017] Optionally: the diameters of the negative pressure section of the sewage pipe, the water resistance section of the sewage pipe and the sewage outlet are controlled between 41 and 58 mm.
[0018] Optionally: the shape and structural form of the water resistance section of the sewage pipe are not restricted, or a hard plastic pipe and a ceramic pipe can be used for press-connection installation.
[0019] Optionally: the aperture of the injection hole is controlled within 20-35 mm, and the specific location where the injection hole is generated within the water storage surface of the sewage inlet is not restricted.
[0020] Optionally: the jet water pipe is supplied with water either by a frame, a water guide ring, or directly by a water inlet.
[0021] Compared with the existing squat toilets with water traps on the market, the rear-mounted siphon sewage pipe squat toilet structure of the present invention has the following advantages in structure and function:
[0022] 1. Solved the problem of being unable to design a siphonic sewage pipe. The current squat toilets with water traps on the market are restricted by the depth of the sinking tank. In principle, the total height of the squat toilets should not exceed 210 mm, otherwise they cannot be installed. The sewage pipe designed under the bottom of the squat toilet is restricted by the depth of the bottom of the toilet bowl, so the sewage pipe cannot be long enough to design the water resistance section of the sewage pipe. If the sewage pipe cannot be designed with a water resistance section, the negative pressure section of the sewage pipe cannot generate negative pressure, and the siphon effect cannot be generated. Therefore, the only way is to use the straight-drop replacement method, and the straight-drop replacement method requires smooth drainage, so the sewage outlet can only be designed to be thicker, generally with a diameter of about 70 mm. The rear-mounted siphon sewage pipe squat toilet structure of the present invention arranges the sewage pipe negative pressure section and the water seal card at the rear of the squat toilet body, so that the sewage pipe water resistance section is designed at a sufficient height behind the water seal card, and the overall diameter of the sewage pipe is controlled between 41 and 58 mm. The strong kinetic energy of water sprayed from the spray hole is used to quickly form 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.
[0023] 2. Solve the problem of shallow bottom of toilet bowl and small water storage surface. The total height of the current squat toilet with water trap on the market cannot exceed 210 mm in principle, and the diameter of the sewage pipe and the water storage depth of the sewage inlet have mandatory standards in the country, so the bottom of the toilet bowl can only have a depth of 70-90 mm. In addition, since only a straight-drop replacement method can be adopted, the water storage surface cannot be enlarged, otherwise, the water flow force will be dispersed during flushing, and the replacement effect is extremely poor. The rear-mounted siphon sewage pipe squat toilet structure of the present invention sets the sewage pipe negative pressure section and the water seal card at the rear of the squat toilet body. The depth of the toilet bowl bottom is no longer restricted by the height of the sewage pipe, and the depth of the toilet bowl bottom can be increased to about 130 mm, which plays a good splash-proof role during flushing. At the same time, since the siphon effect is adopted, the dirty water and dirt are sucked in by negative pressure, and the size of the water storage surface will not seriously affect the replacement effect. The water storage area is appropriately widened and lengthened to avoid the problem of feces sticking to the bottom of the bowl and feces being exposed and smelly.
[0024] 3. It solves the problem of loud flushing noise. The current squat toilets with water traps on the market are all straight-drop replacement types. A higher water pressure and a larger water flow are required to flush the dirt to achieve replacement. When the water hits the water storage surface, there is not only a lot of splashing water, but also a loud water impact sound, so the noise generated is very loud. The louder the noise, the better the replacement effect. The rear-mounted siphon sewage pipe squat toilet structure of the present invention replaces the sewage pipe with a siphon sewage pipe. Although the water flow in the injection hole is very rapid, it is used to assist flushing in the water storage and will not produce any sound. As for the water flow in the washing hole, we can adopt a current limiting method to reasonably control the sound, which will not affect the replacement effect. The noise generated by the straight-drop replacement is generally more than 70 decibels, while the noise generated by the siphon replacement can be controlled at around 50 decibels.
[0025] 4. It solves the problem of high water consumption. The current squat toilets with water traps on the market are all straight-drop replacements, which require higher pressure, larger water flow, and longer time to press the dirt to replace it. If the water flow is less, the dirt will return, so the amount of water for each flushing must be at least 6 liters. The rear-mounted siphon sewage pipe squat toilet structure of the present invention sets the sewage pipe negative pressure section and the water seal card at the rear of the squat toilet body, so that there is enough height behind the water seal card to design the sewage pipe water resistance section, which can form a good siphon effect. Only more than 3 liters of water are needed to completely replace the dirty water and dirt in the toilet bowl.
[0026] 5. Solved the problem of incomplete replacement. The current squat toilets with water traps on the market can only adopt a straight-drop replacement method because the sewage pipe is designed under the bottom of the toilet bowl. As long as the higher pressure and larger water flow are unevenly distributed or the strong pressure time is short, the dirt cannot be replaced, especially floating objects are difficult to replace. The rear-mounted siphon sewage pipe squat toilet structure of the present invention sets the sewage pipe negative pressure section and the water seal card at the rear of the squat toilet body, so that the sewage pipe water resistance section is designed at a sufficient height behind the water seal card, which can quickly form a siphon effect at the sewage inlet, and can siphon out all the dirty water and dirt in the bottom of the toilet bowl with less water, and the replacement is complete and thorough. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0028] Figure 1 It is a schematic diagram of the structure of the rear-mounted siphon sewage pipe squat toilet of the present invention.
[0029] In the figure: 1 - squat toilet body, 2 - water guide ring, 3 - washing hole, 4 - frame, 5 - toilet bowl bottom, 6 - spray water guide pipe, 7 - spray hole, 8 - sewage inlet, 9 - sewage pipe water storage section, 10 - sewage outlet, 11 - sewage pipe water resistance section, 12 - water seal card, 13 - sewage pipe negative pressure section, 14 - water inlet, 15 - water inlet guide pipe. DETAILED DESCRIPTION
[0030] Figure 1 The specific implementation of the rear-mounted siphon sewage pipe squat toilet structure of the present invention is shown. A toilet bowl bottom 5 is formed in the frame 4 of the squat toilet body 1. A water guide ring 2 is formed on the upper edge of the toilet bowl bottom 5. A washing hole 3 is punched 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 spray hole 7 is opened under the water storage of the sewage inlet 8 to spray water toward the sewage pipe water storage section 9. The spray hole 7 is supplied with water by the frame 4 and the water guide ring 2 through the spray water guide pipe 6. The water seal card 12, the sewage pipe negative pressure section 13, the sewage pipe water resistance section 11 and the sewage outlet 10 are all formed on the rear side of the squat toilet body 1. The water inlet 14 is directly connected to the frame 4, and the water inlet water guide pipe 15 connects the water inlet 14 with the water guide ring 2.
[0031] During the specific implementation process, we can also make the following changes:
[0032] 1. The negative pressure section 13 of the sewage pipe and the water seal card 12 are arranged either directly behind the squat toilet body 1, or to the left or right of the rear of the squat toilet body 1, or to the left or right of the frame 4 of the squat toilet body 1, as long as the height of the water seal card 12 and the subsequent pipes are free from the constraints of the toilet bowl bottom 5.
[0033] 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. Because the diameter of the sewage outlet 10 must meet the national standard requirement of 41 mm, if the sewage outlet 10 is too thick, the water inlet 14 will not meet the flow and pressure requirements.
[0034] 3. The shape and structure of the drainage pipe water resistance section 11 are not limited, or a hard plastic pipe and a ceramic pipe can be used for press-fit installation. Because the drainage pipe water resistance section 11 is a suspended structure, the ceramic molding mold is relatively complicated, and we can consider external press-fit to simplify the ceramic molding process.
[0035] 4. The aperture of the injection hole 7 is controlled within 20-35 mm, and the specific position of the injection hole 7 within the water storage surface of the sewage inlet is not limited. Because the flow rate and flow velocity of the injection hole 7 are closely related to the siphon effect, and the generation position also significantly affects the formation of negative pressure in the pipeline, the specific position should be determined according to the actual situation.
[0036] 5. The spray water pipe 6 is supplied with water either by the frame 4, the water guide ring 2, or directly by the water inlet 14. This depends on the actual situation of mold development.
[0037] After people finish using the toilet, when they press the water tank button, the water inlet 14 fills the frame 4 and the water guide ring 2 with water, and the jet water guide pipe 6 starts to supply water to the jet hole 7. At this time, the washing hole 3 starts to wash, and the strong water flow in the jet hole 7 will carry the dirty water and dirt in the sewage inlet 8 through the sewage pipe water storage section 9, the water seal card 12 and fill the sewage pipe negative pressure section 13. When the water flow reaches the sewage pipe water resistance section 11, the water flow will be slightly blocked at the beginning. Later, due to the water level difference between the sewage inlet 8 and the sewage outlet 10, the flow rate is accelerated. At this time, a strong negative pressure is formed in the sewage pipe negative pressure section 13, thereby forming a strong siphon force at the sewage inlet 8, and the dirty water and dirt are immediately sucked in and discharged from the sewage outlet 10.
[0038] In principle, the rear-mounted siphon sewage pipe squat toilet structure of the present invention can also have a variety of changes and modifications, and is not limited to the specific structure of the above-mentioned embodiment, such as the various changes in the generation form of the sewage pipe water resistance section and the overall layout of the sewage pipe. In short, the protection scope of the rear-mounted siphon sewage pipe squat toilet structure of the present invention should also include those exchanges, substitutions and modifications that are obvious to ordinary technicians in the field.
Claims
1. A rear-mounted siphon sewage pipe squat toilet structure, 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 card, a sewage pipe negative pressure section, a water inlet, and a water inlet guide pipe, characterized in that: The negative pressure section (9) of the sewage pipe and the water seal card (12) are arranged at the rear of the squat toilet body (1), so that the water resistance section (11) of the sewage pipe is designed at a sufficient height behind the water seal card (12). The strong kinetic energy of water sprayed from the spray hole (7) is used to quickly form a large negative pressure in the negative pressure section (9) of the sewage pipe under the action of the water resistance section (11) of the sewage pipe, so that all the dirty water and dirt in the sewage inlet (8) are quickly sucked away, thereby achieving a deeper toilet bowl bottom (5) and a silent, water-saving, and completely replaced siphon effect.
2. The rear-mounted siphon sewage pipe squat toilet structure according to claim 1 is characterized in that: The sewage pipe negative pressure section (9) and the water seal card (12) are arranged either directly behind the squat toilet body (1), or to the left or right of the rear of the squat toilet body (1), or to the left or right of the frame (4) of the squat toilet body (1).
3. The rear-mounted siphon sewage pipe squat toilet structure according to claim 1, characterized in that: The pipe diameters of the sewage pipe negative pressure section (13), the sewage pipe water resistance section (11) and the sewage outlet (10) are controlled between 41 and 58 mm.
4. The rear-mounted siphon sewage pipe squat toilet structure according to claim 1, characterized in that: The shape and structural form of the sewage pipe water resistance section (11) are not limited, or a hard plastic pipe and a ceramic pipe can be used for press-connection installation.
5. The rear-mounted siphon sewage pipe squat toilet structure according to claim 1 is characterized in that: The aperture of the injection hole (7) is controlled within 20-35 mm, and the specific position where the injection hole (7) is generated within the water storage surface of the sewage discharge inlet (8) is not limited.
6. The rear-mounted siphon sewage pipe squat toilet structure according to claim 1, characterized in that: The jet water conduit (6) is supplied with water either by the frame (4) or the water conduit ring (3), or directly by the water inlet (14).