A top rod type tap water and water in composite flushing control valve
By using a top-mounted tap water combined flushing control valve, the system fully utilizes recycled water and performs secondary flushing with tap water, solving the problems of odor and stains when flushing toilets with recycled water, thus improving hygiene and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN RECLAIMED WATER TECH DEV CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-09
AI Technical Summary
Existing greywater flush toilets have unpleasant odors, turbidity that breeds bacteria, and stains that affect the hygiene environment. Furthermore, long-term use may corrode the toilet glaze, reducing the user experience.
Design a top-rod type combined tap water and reclaimed water flushing control valve, which controls the alternating flushing of tap water and reclaimed water through a solenoid valve, using tap water for secondary flushing to clean toilet residue and making full use of reclaimed water resources.
It achieves full utilization of greywater, reduces the impact of odors and turbidity, maintains toilet hygiene, prevents corrosion, and improves user experience.
Smart Images
Figure CN224339574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water tank technology, and in particular to a top rod type water-water composite flushing control valve for tap water. Background Technology
[0002] Reclaimed water (or greywater) refers to recycled water that has undergone some treatment but does not meet drinking water standards. It typically originates from domestic sewage (such as bathing, laundry, and kitchen wastewater) or rainwater collection, and after physical, chemical, or biological treatment, is used for non-drinking purposes such as toilet flushing, green space irrigation, and road cleaning. Using greywater to flush toilets is an environmentally friendly and water-saving measure, but it currently presents several problems. For example, odors and turbidity may breed bacteria, increasing stains and biofilm on the toilet bowl's inner wall, affecting hygiene. Long-term use of low-quality greywater may corrode the toilet glaze, resulting in a rough surface that is more prone to dirt accumulation; lingering odors after flushing reduce the user experience; and turbid water stains depositing on the toilet bowl's inner wall or in the tank affect aesthetics and may be mistaken for uncleanliness. These problems need to be addressed to ensure the full utilization of greywater resources. Utility Model Content
[0003] The purpose of this invention is to provide a top-rod type water-water composite flushing control valve, which can perform a second flush after flushing the toilet with recycled water to reduce odors, thus making full use of recycled water.
[0004] This utility model provides a top-rod type tap water composite flushing control valve, including a water storage component. The water storage component includes a water tank, and a water outlet pipe is integrally formed and connected to the bottom of the water tank. A tap water control valve is provided inside the water tank. The tap water control valve includes an upper cover, and a water control cylinder is installed at the bottom of the upper cover. The outer wall of the water control cylinder has several water inlet holes. One end of a top rod is threadedly installed in the middle of the upper cover, and a piston is installed at the other end of the top rod. A water supply valve is provided at the bottom of the water outlet pipe. The water supply valve includes a water supply pipe connected to the water outlet pipe. A cover plate is hinged to the end of the water supply pipe. One end of the water supply pipe is connected to a connecting elbow, and the other end of the connecting elbow is connected to a solenoid valve. A limit ring is installed on the top of the inner wall of the connecting elbow.
[0005] As a further optimization, a water tank is included, in which an inlet valve and a pump valve are installed. The water supply valve, water storage component, and tap water control valve are all located inside the water tank, and the connecting elbow is installed through and connected to the bottom of the water tank.
[0006] As a further optimization, the water supply pipe in the water supply valve is connected to the water pumping valve, and the end of the water supply pipe with a cover plate is located inside the water pumping valve, and the cover plate is normally closed due to gravity.
[0007] As a further optimization, the highest water level inside the water tank is higher than the top of the water storage tank, the inner wall of the water storage tank is in contact with the outer wall of the water control cylinder, and the water control cylinder slides inside the water storage tank.
[0008] As a further optimization, the end of the solenoid valve away from the connecting elbow is connected to the greywater source, and the solenoid valve delivers greywater through the connecting elbow to the inside of the water supply pipe.
[0009] As a further optimization, the piston slides on the inner wall of the water outlet pipe, the water supply pipe, and the connecting elbow. The highest point of the piston's sliding is located at the top of the water outlet pipe, and the lowest point of the piston's sliding is located at the limiting ring.
[0010] As a further optimization, the water storage tank has a water storage capacity of 2 liters.
[0011] As a further optimization, when the water control cylinder is located inside the water storage tank, the upper cover seals the opening of the water storage tank.
[0012] As a further optimization, the connecting elbow, water supply pipe and water outlet pipe are in a connected state.
[0013] As a further optimization, an exhaust pipe is installed on the side wall of the water storage tank, and the exhaust pipe protrudes outside the water tank.
[0014] This utility model provides an improved push-rod type combined tap water and water flushing control valve, which has the following improvements and advantages compared with the prior art: The push-rod type combined tap water and water flushing control valve has a simple structure. Under the delivery of reclaimed water by the solenoid valve, the water pressure forces open the cover plate and enters the flushing valve for the first flush. During the reclaimed water flushing process, the piston is pushed by the reclaimed water pressure, triggering the push rod to rise, which in turn raises the control cylinder, allowing tap water to enter the storage tank for storage. After the reclaimed water flushing is completed, the delivery stops. After the impact of the reclaimed water pressure, the tap water pressure inside the storage tank causes the piston to drop, allowing tap water to flow through the water pipe into the flushing valve for a second flush. This two-stage flushing process—one with tap water and one with regular tap water—ensures that reclaimed water resources are fully utilized, saving water. It also uses regular tap water to flush away any reclaimed water residue in the toilet, reducing the negative effects of reclaimed water flushing. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the water storage component, tap water control valve, and water supply valve of this utility model.
[0018] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;
[0019] Figure 4 This is a schematic diagram of the structure of the tap water control valve in the drainage state of this utility model;
[0020] Figure 5 This is a schematic diagram of the water storage state of the tap water control valve of this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1-Water tank, 2-Inlet valve, 3-Draw valve, 4-Solenoid valve, 5-Connecting elbow, 6-Water supply valve, 61-Water supply pipe, 62-Cover plate, 7-Water storage assembly, 71-Water storage tank, 72-Outlet pipe, 8-Tap water control valve, 81-Upper cover, 82-Push rod, 83-Piston, 84-Inlet hole, 85-Water control cylinder, 9-Limit ring, 10-Exhaust pipe. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Please see Figure 1-5 This utility model provides a technical solution for a top-rod type tap water-water composite flushing control valve, such as... Figures 1 to 5As shown, the system includes a water storage component 7 for storing tap water for secondary flushing. The water storage component 7 includes a water tank 71, the interior of which holds tap water. A water outlet pipe 72 is integrally formed at the bottom of the water tank 71, allowing the tap water inside the tank to be discharged for flushing. A tap water control valve 8 is installed inside the water tank 71 to control the entry and exit of tap water. The tap water control valve 8 includes an upper... The cover 81 serves two functions: first, it houses the water control cylinder 85; second, it seals the top opening of the water storage tank 71. The water control cylinder 85 is installed at the bottom of the cover 81 and can slide up and down inside the water storage tank 71. Several water inlet holes 84 are opened on the outer wall of the water control cylinder 85. When the water control cylinder 85 is filled with gas, the water inlet holes 84 protrude outside the water storage tank 71, allowing tap water to enter the interior of the water storage tank 71 through the water inlet holes 84. A push rod 82 is threadedly installed in the middle of the cover 81. At one end, a piston 83 is mounted on a push rod 82. When the piston 83 is pushed, the upper cover 81 and the water control cylinder 85 move up and down through the push rod 82. The piston 83 is also mounted on the other end of the push rod 82. A water valve 6 is provided at the bottom of the outlet pipe 72. The water valve 6 serves as a transfer valve between reclaimed water and tap water. The water valve 6 includes a water pipe 61, which transports either tap water or reclaimed water. The water pipe 61 is connected to the outlet pipe 72, and a cover plate 62 is hinged to the end of the water pipe 61. The water pipe 61 is available in two types. The water conveying carrier, the cover plate 62 controls the closing and opening state of the end of the water conveying pipe 61, and the bottom of the water conveying pipe 61 is connected to one end of the connecting elbow 5. The connecting elbow 5 is the medium for connecting the solenoid valve 4 and the water conveying pipe 61, and is also the medium for conveying greywater. The other end of the connecting elbow 5 is connected to the solenoid valve 4. The solenoid valve 4 is the power component used to convey greywater. The top of the inner wall of the connecting elbow 5 is equipped with a limit ring 9. The limit ring 9 blocks and limits the movement of the piston 83, and controls the movement range of the piston 83.
[0027] refer to Figures 1 to 5As shown, after the solenoid valve 4 is energized, the greywater is first transmitted through the connecting elbow 5 to the inside of the water supply pipe 61. The greywater is transmitted through the water supply pipe 61, and the water pressure forces the cover plate 62 open for flushing. At the same time, the water pressure of the greywater pushes the piston 83 upward, and the piston 83 drives the push rod 82 to move upward. The push rod 82 pushes the upper cover 81 and the water control cylinder 85 upward, pushing the water control cylinder 85 out to the outside of the water storage tank 71. At this time, the water inlet 84 is located outside the water storage tank 71, and then... Water enters the interior of the water storage tank 71. Then, the solenoid valve 4 stops working, and the reclaimed water supply stops. The piston 83 is pushed downward by the water pressure inside the water storage tank 71. The piston 83 moves to the bottom of the outlet pipe 72, which is located inside the connecting elbow 5. The tap water inside the water storage tank 71 is discharged through the outlet pipe 72 to the water supply pipe 61 for tap water flushing. Through the above process, the reclaimed water can be used for re-rinsing first, followed by tap water rinsing, so that the reclaimed water rinsing can be fully utilized.
[0028] Combination Figure 1 and Figure 2 As shown, the device includes a water tank 1, which is a toilet tank used daily. Inside the water tank 1, there is an inlet valve 2 and a flush valve 3. The inlet valve 2 is responsible for automatically replenishing water after the water tank is emptied, and automatically closing when the water level reaches a preset height. The flush valve 3 controls the water in the water tank to be discharged into the toilet to complete the flushing. After flushing, it automatically resets to seal the bottom of the water tank. The inlet valve 2 and the flush valve 3 are commonly used parts in existing toilet tanks. The water supply valve 6, the water storage component 7, and the tap water control valve 8 are all located inside the water tank 1. The connecting elbow 5 is installed through and connected to the bottom of the water tank 1.
[0029] Water tank 1 houses all the valves. After the inlet valve 2 is activated, tap water is poured into the interior of water tank 1. When the flush valve 3 drains water, it is used for toilet flushing. The water storage component 7, etc., can work with the inlet valve 2 and the flush valve 3 to create a secondary flushing effect.
[0030] like Figure 3 As shown, the water supply pipe 61 in the water supply valve 6 is connected to the water pumping valve 3. The end of the water supply pipe 61 with the cover plate 62 is located inside the water pumping valve 3. The cover plate 62 is normally closed due to gravity. The cover plate 62 is used to control the open state of the water supply pipe 61. The normally closed state is to prevent the mixed water and tap water.
[0031] In order for the water storage tank 71 to store tap water smoothly, the highest water level inside the water tank 1 is higher than the top of the water storage tank 71. The inner wall of the water storage tank 71 is in contact with the outer wall of the water control cylinder 85. The water control cylinder 85 slides inside the water storage tank 71 and moves up and down inside the water storage tank 71 to control the water storage state of the water storage tank 71.
[0032] In order to make full use of the reclaimed water, the end of the solenoid valve 4 away from the connecting elbow 5 is connected to the reclaimed water source. The solenoid valve 4 controls the reclaimed water to participate in the flushing work. The solenoid valve 4 delivers the reclaimed water to the inside of the water supply pipe 61 through the connecting elbow 5.
[0033] To allow piston 83 to switch between tap water and greywater delivery modes, its range of motion needs to be limited. Piston 83 slides along the inner walls of the outlet pipe 72, the supply pipe 61, and the connecting elbow 5. The highest point of piston 83's sliding motion is located at the top of the outlet pipe 72, and the lowest point is located at the limit ring 9. When piston 83 is inside the outlet pipe 72, it is in greywater flushing mode; when piston 83 is inside the connecting elbow 5, it is in tap water flushing mode. See the specific states for reference. Figure 4 and Figure 5 I learned that.
[0034] In order to ensure that the tap water is sufficient to flush away the residue of greywater when flushing the toilet, the water storage tank 71 has a water storage capacity of 2 liters. The 2 liters of tap water is sufficient to flush away the residue of greywater.
[0035] To prevent tap water from entering the interior of the water tank 71 after water storage is completed, when the water control cylinder 85 is located inside the water tank 71, the upper cover 81 seals the opening of the water tank 71 to prevent water from entering the interior of the water tank 71 and causing pressure.
[0036] To allow for seamless switching between the two types of water, the connection between elbow 5, water supply pipe 61, and water outlet pipe 72 is made continuous, ensuring smooth water flow.
[0037] In order to ensure that the water inside the water storage tank 71 is not affected by the air pressure in the confined space, an exhaust pipe 10 is installed on the side wall of the water storage tank 71. The exhaust pipe 10 is exposed outside the water tank 1, and the exhaust pipe 10 allows the water storage tank 71 to communicate with the outside air to maintain air pressure balance.
[0038] The working principle of this utility model is explained below with reference to a preferred embodiment: First, when drainage is needed, the flush valve 3 is triggered to flush the toilet. After the solenoid valve 4 is turned on, the greywater is transported through the connecting elbow 5 into the interior of the water supply pipe 61. At this time, the water pressure forces the cover plate 62 open to flush the toilet. This is the first flush, and greywater is used for toilet flushing. At the same time, the water pressure of the greywater pushes the piston 83 upward. The piston 83 drives the push rod 82 to move upward. The push rod 82 pushes the upper cover 81 and the water control cylinder 85 upward, thus controlling the water flow. The water cylinder 85 is pushed out to the outside of the water storage tank 71. At this time, the water inlet 84 is located outside the water storage tank 71. Then, tap water enters the inside of the water storage tank 71. After the water is flushed, the piston 83 is pushed downward by the water pressure inside the water storage tank 71. There is no push from the solenoid valve 4 to deliver water pressure. The piston 83 moves to the bottom of the outlet pipe 72, which is located at the inner limit ring 9 of the connecting elbow 5. The tap water inside the water storage tank 71 is discharged through the outlet pipe 72 to the inside of the water supply pipe 61 for tap water flushing. This is the second flushing.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A push-rod type water-water composite flushing control valve for tap water, characterized in that, The system includes a water storage component (7), which includes a water storage tank (71). The bottom of the water storage tank (71) is integrally formed and connected to a water outlet pipe (72). The water storage tank (71) has an internal tap water control valve (8), which includes an upper cover (81). A water control cylinder (85) is installed at the bottom of the upper cover (81). The outer wall of the water control cylinder (85) has several water inlet holes (84). One end of a push rod (82) is threadedly installed in the middle of the upper cover (81). A piston (83) is installed at the other end of the push rod (82). A water supply valve (6) is provided at the bottom of the water outlet pipe (72). The water supply valve (6) includes a water supply pipe (61). The water supply pipe (61) is connected to the water outlet pipe (72). A cover plate (62) is hinged to the end of the water supply pipe (61). One end of a connecting elbow (5) is connected to the bottom of the water supply pipe (61). A solenoid valve (4) is connected to the other end of the connecting elbow (5). A limit ring (9) is installed on the top of the inner wall of the connecting elbow (5).
2. The push-rod type tap water composite flushing control valve according to claim 1, characterized in that, Includes a water tank (1), inside which are installed an inlet valve (2) and a pump valve (3), and inside which are a water supply valve (6), a water storage assembly (7) and a tap water control valve (8), wherein the connecting elbow (5) is installed through and connected to the bottom of the water tank (1).
3. A push-rod type tap water composite flushing control valve according to claim 2, characterized in that, The water supply pipe (61) in the water supply valve (6) is connected to the water pumping valve (3). The end of the water supply pipe (61) with the cover plate (62) is located inside the water pumping valve (3), and the cover plate (62) is normally closed due to gravity.
4. A push-rod type tap water composite flushing control valve according to claim 2, characterized in that, The highest water level inside the water tank (1) is higher than the top of the water storage tank (71). The inner wall of the water storage tank (71) is in contact with the outer wall of the water control cylinder (85), and the water control cylinder (85) slides inside the water storage tank (71).
5. A push-rod type tap water composite flushing control valve according to claim 2, characterized in that, The end of the solenoid valve (4) away from the connecting elbow (5) is connected to the greywater source, and the solenoid valve (4) delivers greywater through the connecting elbow (5) to the inside of the water supply pipe (61).
6. A push-rod type tap water composite flushing control valve according to claim 1, characterized in that, The piston (83) slides on the inner wall of the water outlet pipe (72), the water supply pipe (61) and the connecting elbow (5). The highest point of the piston (83) is located at the top of the water outlet pipe (72), and the lowest point of the piston (83) is located at the limiting ring (9).
7. A push-rod type tap water composite flushing control valve according to claim 1, characterized in that, The water storage tank (71) has a water storage capacity of 2 liters.
8. A push-rod type tap water composite flushing control valve according to claim 1, characterized in that, When the water control cylinder (85) is located inside the water storage tank (71), the upper cover (81) seals the opening of the water storage tank (71).
9. A push-rod type tap water composite flushing control valve according to claim 1, characterized in that, The connecting elbow (5), water supply pipe (61) and water outlet pipe (72) are in a connected state.
10. A push-rod type tap water composite flushing control valve according to claim 1, characterized in that, The side wall of the water storage tank (71) is connected to an exhaust pipe (10), which protrudes outside the water tank (1).