Water-saving toilet stool with upper and lower spray pipe structures
By using an upper and lower spray pipe structure and a foam water seal design, the problems of flushing efficiency and water waste in squat toilets are solved, achieving water-saving and efficient cleaning effects.
Patent Information
- Application Number
- CN202423160324.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing squat toilets have shortcomings in terms of flushing efficiency and water waste. The traditional surround flushing method consumes a lot of water, while the direct spray flushing method uses too little water to effectively remove sewage.
It adopts an upper and lower spray pipe structure, combining the design of the upper and lower spray pipes. The upper spray pipe uses a direct jet to flush the dirt to the water trap, while the lower spray pipe sprays water laterally to carry the dirt through the water trap. Combined with the water pump, air pump and liquid pump, a foam water seal is formed to optimize water flow utilization.
It achieves effective removal of dirt with less water consumption, saving about 2L of water resources, improving flushing efficiency and reducing water waste, and the foam water seal further reduces water consumption.
Smart Images

Figure CN223548681U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of squat toilets, and particularly relates to a water-saving toilet with an upper and lower spray pipe structure. Background Technology
[0002] Squat toilets, as a common sanitary facility, are widely used in various public places and homes. Their main function is to promptly and effectively handle human waste, ensuring environmental hygiene and user comfort. However, existing squat toilets have certain design shortcomings, particularly in flushing efficiency and water waste. These problems are becoming increasingly prominent in modern society and urgently need improvement.
[0003] The existing flushing mechanism of squat toilets, such as Figure 1 As shown, traditional squat toilets typically use a flow pattern where water flows from the surrounding cavity into the toilet bowl. After exiting the nozzle, the water flows around the perimeter of the toilet, washing away dirt and grime. The swirling impact of the water significantly improves cleaning effectiveness, preventing residue and keeping the toilet clean. However, this flushing method also has significant drawbacks. First, it consumes a lot of water. While the water flow around the toilet bowl is effective each time, the amount of water required often exceeds modern water-saving standards, which is particularly inappropriate in the context of water scarcity. With global emphasis on environmental protection and sustainable development, various water-saving measures are being implemented, and this design of traditional squat toilets undoubtedly contradicts this trend. To achieve a good cleaning effect with each flush, users often need to use more water, leading to water waste.
[0004] If a spray nozzle is used to directly flush the squat toilet pit, it can significantly reduce water consumption while removing waste. However, this flushing method makes it difficult for waste to pass through the trap due to insufficient water consumption. Therefore, it is necessary to increase the water consumption to carry the waste through the trap, ultimately failing to effectively achieve the effect of saving water.
[0005] Therefore, this utility model improves the structure of squat toilets so that waste can pass through the water trap with less water, thereby effectively improving the water-saving effect of squat toilets. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a water-saving toilet with an upper and lower spray pipe structure, which addresses the shortcomings of the existing technology.
[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0008] A water-saving toilet with an upper and lower spray pipe structure includes a squat toilet body. A drain hole is provided at the rear end of the squat toilet body's latrine, which is connected to the inlet of a water trap. The outlet of the water trap is connected to a drain pipe. An upper spray pipe is installed at the front end of the squat toilet body, which is connected to a first water source. The nozzle of the upper spray pipe faces the latrine of the squat toilet body. A lower spray pipe is installed at the inlet of the water trap, which is connected to a second water source. The nozzle of the lower spray pipe is used to inject kinetic water into the water trap, and the water flow direction is from the inlet of the water trap to the outlet of the water trap.
[0009] To optimize the above technical solution, the specific measures also include:
[0010] The nozzle of the aforementioned upper spray pipe is equipped with a guide plate, which is used to shape the water flow sprayed from the nozzle of the upper spray pipe so that the water flow is tilted downward to impact the main body of the squat toilet.
[0011] The aforementioned water trap is a U-shaped bend, comprising a front vertical section, a horizontal section, and a rear vertical section. The lower end of the front vertical section is connected to one end of the horizontal section, and the other end of the horizontal section is connected to the rear vertical section. The lower spray pipe is horizontally positioned, and the outlet of the lower spray pipe is horizontally positioned at the connection between the front vertical section and the horizontal section.
[0012] The aforementioned upper spray pipe is connected to the first water source via an upper water pump, which is used to pump water from the first water source into the upper spray pipe.
[0013] The aforementioned lower spray pipe is connected to a second water source via a lower water pump, which is used to pump water from the second water source into the lower spray pipe.
[0014] The aforementioned upper spray pipe is also connected to an air pump and a liquid pump. The liquid pump is connected to a foaming tank containing foaming liquid. The air pump can inject air into the upper spray pipe, and the liquid pump can pump the foaming liquid in the foaming tank into the upper spray pipe.
[0015] The aforementioned upper spray pipe is equipped with a mixer. The water, air, and foaming liquid pumped into the upper spray pipe by the water pump, air pump, and liquid pump first pass through the mixer before reaching the nozzle of the upper spray pipe.
[0016] The mixer described above is a static mixer.
[0017] The aforementioned guide plate is an inclined plate. One end of the guide plate is connected to the upper end of the nozzle of the upper spray pipe, and the other end is a free end, which is inclined downward.
[0018] The free end of the aforementioned guide plate is tilted downwards at an angle of 30°-60°.
[0019] The beneficial effects of this utility model are:
[0020] 1. The water-saving toilet with an upper and lower spray pipe structure of this utility model has two spray pipes, one upper and one lower. The upper spray pipe uses a straight jet to flush the waste in the toilet bowl to the water trap, while the lower spray pipe sprays water horizontally to carry the waste at the entrance of the water trap through the water trap. This utility model uses the cooperation of the upper and lower spray pipes to flush away waste with less water. Compared with the surrounding flush squat toilet, this utility model can save about 2L of water per flush, effectively saving water resources.
[0021] 2. When traditional sanitary ware is flushed, the water flows first into the surrounding hollow channels, resulting in a large loss of kinetic energy. Moreover, the water remaining inside will slowly flow out after flushing, which does not have a cleaning effect and is quite wasteful. This utility model flushes from front to back, and the water flows directly into the drain outlet, resulting in less loss of kinetic energy, stronger flushing force, and full utilization of water flow.
[0022] 3. The water pump of this utility model can apply pressure to the water flowing through the lower spray pipe, so that the lower spray pipe can drive the sewage out of the water trap with less water flow and greater speed, thereby saving water.
[0023] 4. This utility model can also install water pump, air pump, liquid pump and mixer on the upper spray pipe. Water, air and foaming liquid can be mixed to form foam, which is sprayed out through the upper spray pipe. The foam is used to form a water seal at the water trap inlet. The water seal formed by the foam is thick and uses less water, which can further reduce the water used when the squat toilet forms a water seal. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the flushing process of a conventional wraparound flushing squat toilet.
[0025] Figure 2 This is a three-dimensional structural diagram of a water-saving toilet with an upper and lower spray pipe structure according to the first embodiment of this utility model;
[0026] Figure 3 This is a three-dimensional structural diagram of a water-saving toilet with an upper and lower spray pipe structure according to the second embodiment of this utility model.
[0027] The attached diagram is labeled as follows: squat toilet body 1, drain hole 11, water trap 2, front vertical part 21, horizontal part 22, rear vertical part 23, drain pipe 3, upper spray pipe 4, guide plate 41, water pump 42, air pump 43, liquid pump 44, foaming tank 45, lower spray pipe 5, lower water pump 51, and mixer 6. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.
[0029] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.
[0030] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.
[0031] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units (elements) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms “multiple” / “several” used in this application refer to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can indicate: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.
[0032] First embodiment: as follows Figure 2 As shown, the water-saving toilet with an upper and lower spray pipe structure in this embodiment mainly includes a squat toilet body 1, a water trap 2, a drain pipe 3, an upper spray pipe 4, an upper water pump 42, a lower spray pipe 5, and a lower water pump 51.
[0033] The squat toilet body 1 has a drain hole 11 at the rear end of the toilet pit. The drain hole 11 is connected to the inlet of the water trap 2. The outlet of the water trap 2 is connected to the drain pipe 3. The upper spray pipe 4 is installed at the upper front end of the squat toilet body 1. The lower spray pipe 5 is installed at the inlet of the water trap 2. The nozzle of the upper spray pipe 4 is equipped with a guide plate 41 that is inclined downward at 45°. When flushing, the upper spray pipe 4 can spray water horizontally under the action of the upper water pump 42. The guide plate 41 guides the water flow to impact the toilet pit of the squat toilet body 1 at an angle so that the water flow can flush the sewage in the toilet pit into the drain hole 11 and into the water trap 2. The lower water pump 51 can inject pressurized water into the lower spray pipe 5. The lower spray pipe 5 sprays water horizontally to flush the sewage in the water trap 2 into the drain pipe 3 for discharge.
[0034] The usage process of the water-saving toilet with upper and lower spray pipe structure in this embodiment is as follows:
[0035] When the toilet needs to be flushed, the upper water pump 42 is started. The upper water pump 42 sprays water through the upper spray pipe 4 to flush the toilet. After 4-6 seconds, the lower water pump 51 is started. The lower water pump 51 sprays water horizontally through the lower spray pipe 5 to flush the dirt in the trap 2 to the drain pipe 3. The lower water pump 51 works for 1-2 seconds. Then the upper water pump 42 sprays a small amount of water through the upper spray pipe 4 to form a water seal in the trap 2.
[0036] Second embodiment: as follows Figure 3 As shown, the water-saving toilet with an upper and lower spray pipe structure in this embodiment mainly includes a squat toilet body 1, a water trap 2, a drain pipe 3, an upper spray pipe 4, an upper water pump 42, an air pump 43, a liquid pump 44, a foaming tank 45, a lower spray pipe 5, a lower water pump 51, and a mixer 6.
[0037] Compared to the first embodiment, this embodiment adds structures such as an air pump 43, a liquid pump 44, a foaming tank 45, and a mixer 6. The liquid pump 44 is connected to the foaming tank 45, which contains foaming liquid. The air pump 43 injects air into the upper spray pipe 4, and the liquid pump 44 pumps the foaming liquid in the foaming tank 45 into the upper spray pipe 4. The water, air, and foaming liquid pumped into the upper spray pipe 4 by the water pump 42, air pump 43, and liquid pump 44 first pass through the mixer 6 before reaching the nozzle of the upper spray pipe 4. The mixer 6 is a static mixer.
[0038] The difference between this embodiment and the first embodiment lies in the method of forming a water seal after flushing. The usage process of the water-saving toilet with an upper and lower spray nozzle structure in this embodiment is as follows:
[0039] When flushing the toilet is required, the upper water pump 42 is started. The upper water pump 42 sprays water through the upper spray pipe 4 to flush the toilet. After 4-6 seconds, the lower water pump 51 is started. The lower water pump 51 sprays water horizontally through the lower spray pipe 5 to flush the dirt in the trap 2 to the drain pipe 3. The lower water pump 51 works for 1-2 seconds. Then the upper water pump 42, air pump 43, and liquid pump 44 operate simultaneously, so that water, air and foaming liquid are mixed by the mixer 6 to form foam, which is then sprayed out through the upper spray pipe 4 to form a foam water seal in the trap 2.
[0040] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.
Claims
1. A water-saving toilet with an upper and lower spray pipe structure, comprising a squat toilet body (1), wherein a drain hole (11) is provided at the rear end of the squat toilet body (1), the drain hole (11) is connected to the inlet of a water trap (2), and the outlet of the water trap (2) is connected to a drain pipe (3), characterized in that: The squat toilet body (1) is equipped with an upper spray pipe (4) at the front end. The upper spray pipe (4) is connected to a first water source. The nozzle of the upper spray pipe (4) faces the squat toilet body (1) pit. The water trap (2) is equipped with a lower spray pipe (5) at the inlet. The lower spray pipe (5) is connected to a second water source. The nozzle of the lower spray pipe (5) is used to inject kinetic water into the water trap (2). The direction of the water flow is from the inlet of the water trap (2) to the outlet of the water trap (2).
2. The water-saving toilet with an upper and lower spray pipe structure according to claim 1, characterized in that: The nozzle of the upper spray pipe (4) is equipped with a guide plate (41). The guide plate (41) is used to shape the water flow sprayed from the nozzle of the upper spray pipe (4) so that the water flow tilts downward to impact the toilet body (1) pit.
3. The water-saving toilet with an upper and lower spray pipe structure according to claim 2, characterized in that: The water trap (2) is a U-shaped bend, including a front vertical part (21), a horizontal part (22) and a rear vertical part (23). The lower end of the front vertical part (21) is connected to one end of the horizontal part (22), and the other end of the horizontal part (22) is connected to the rear vertical part (23). The lower spray pipe (5) is arranged horizontally, and the outlet of the lower spray pipe (5) is arranged horizontally at the connection between the front vertical part (21) and the horizontal part (22).
4. The water-saving toilet with an upper and lower spray pipe structure according to claim 3, characterized in that: The upper spray pipe (4) is connected to the first water source via an upper water pump (42), which is used to pump water from the first water source into the upper spray pipe (4).
5. The water-saving toilet with an upper and lower spray pipe structure according to claim 4, characterized in that: The lower spray pipe (5) is connected to the second water source via a lower water pump (51), which is used to pump water from the second water source into the lower spray pipe (5).
6. The water-saving toilet with an upper and lower spray pipe structure according to claim 5, characterized in that: An air pump (43) and a liquid pump (44) are connected to the upper spray pipe (4). The liquid pump (44) is connected to a foaming tank (45), which contains foaming liquid. The air pump (43) can inject air into the upper spray pipe (4), and the liquid pump (44) can pump the foaming liquid in the foaming tank (45) into the upper spray pipe (4).
7. The water-saving toilet with an upper and lower spray pipe structure according to claim 6, characterized in that: A mixer (6) is installed on the upper spray pipe (4). The water pump (42), air pump (43) and liquid pump (44) pump water, air and foaming liquid into the upper spray pipe (4) first pass through the mixer (6) and then reach the nozzle of the upper spray pipe (4).
8. The water-saving toilet with an upper and lower spray pipe structure according to claim 7, characterized in that: The mixer (6) is a static mixer.
9. The water-saving toilet with an upper and lower spray pipe structure according to claim 2, characterized in that: The guide plate (41) is an inclined plate. One end of the guide plate (41) is connected to the upper end of the nozzle of the upper spray pipe (4), and the other end is a free end. The free end of the guide plate (41) is inclined downward.
10. The water-saving toilet with an upper and lower spray pipe structure according to claim 9, characterized in that: The guide plate (41) is tilted downward at an angle of 30°-60° at its free end.