A toilet flushing device with an anti-siphon mechanism

Abstract

The utility model provides a toilet flushing device with prevent siphon mechanism, including water tank, inlet valve and prevent siphon subassembly. Prevent siphon subassembly includes prevent siphon body, prevent siphon piece and prevent siphon cover. Prevent siphon subassembly is located on the water replenishing channel, and prevent siphon body includes prevent siphon cavity, inlet channel and outlet channel. Prevent siphon piece is movably installed at the outlet end of inlet channel. Prevent siphon cover covers the opening of prevent siphon cavity and is equipped with air hole, and the air hole is aligned with prevent siphon piece. The toilet flushing device provided by the utility model can avoid the siphon phenomenon of the water channel and the pollution of water source without affecting the water replenishing function.

Description

Technical Field

[0001] This utility model relates to the field of kitchen and bathroom technology, and in particular to a toilet flushing device with an anti-siphon mechanism. Background Technology

[0002] With technological advancements, the functionality of toilet flushing systems is constantly improving. More advanced systems on the market can perform functions such as flushing the rim, main flush, water seal replenishment, and tank replenishment. Furthermore, some can achieve these functions using a purely mechanical structure. For example, patent number CN202210062991.0, entitled "Multi-valve Staged Water Dispenser for Toilets," describes this type of toilet flushing system. These systems often require multiple stop cups and corresponding floats. The float corresponding to the main flush needs to rise first during flushing; otherwise, excessive main flush water will result. In this case, the water outlet of the inlet valve needs to be directly connected to a conduit... The water inlet of the main flush valve, which is connected to the stop cup corresponding to the main flush, needs to be connected to the water tank via a conduit. If a siphon reaction occurs, water in the tank will flow backward into the inlet valve and into the water source, causing water pollution. In addition, with continuous structural improvements, toilet flushing systems are becoming lower and lower, better meeting consumers' desire for a flat toilet top. However, this structure also brings the risk of wastewater from the toilet bowl entering the water tank. Once wastewater flows back into the water source through a siphon, it will cause serious water pollution. Therefore, this utility model provides a toilet flushing device equipped with an anti-siphon mechanism, which can solve the above-mentioned technical problems. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a flushing system that can prevent water sources from being polluted.

[0004] A toilet flushing device with an anti-siphon mechanism includes a water tank, an inlet valve, and an anti-siphon component, wherein... The water inlet valve is located in the water tank.

[0005] The inlet valve includes an inlet valve body and a stop cup. The inlet valve body is provided with an inlet pipe, a brush ring valve, a main flush valve, and a water supply valve. The inlet ends of the brush ring valve, the main flush valve, and the water supply valve are all connected to the inlet pipe. The brush ring valve has a brush ring outlet channel, the main flush valve has a main flush outlet channel, and the water supply valve has a water supply channel. The stop cup includes a brush ring stop cup, a main flush stop cup, and a water supply stop cup, which are respectively used to accommodate the floats of the brush ring valve, the main flush valve, and the water supply valve.

[0006] The anti-siphon assembly is disposed on the water supply channel, and includes an anti-siphon body, an anti-siphon component, and an anti-siphon cover. The anti-siphon body has an anti-siphon cavity, an inlet channel, and an outlet channel. The anti-siphon component is movably installed at the outlet end of the inlet channel. The anti-siphon cover seals the opening of the anti-siphon cavity and has a vent hole aligned with the anti-siphon component.

[0007] In use, when the water tank replenishment channel is filled with water, the anti-siphon component opens the outlet end of the water inlet channel and seals the vent hole. When the water tank replenishment channel is stopped, the outlet end of the water inlet channel is sealed (either completely or partially) and the vent hole is opened, thereby allowing communication with the outside world and preventing siphoning.

[0008] The toilet flushing device provided by this utility model is equipped with an anti-siphon component in its water replenishment channel. This component can connect the water replenishment channel to the outside without affecting the water replenishment function, thereby preventing the water from siphoning and preventing water in the toilet from flowing back into the water source.

[0009] Preferably, the water supply channel includes a water seal water supply channel and a water tank water supply channel, the water inlet channel of the anti-siphon component is connected to the water tank water supply channel, and the water outlet channel of the anti-siphon component is connected to the main flush stop cup through a conduit.

[0010] Preferably, the anti-siphon component is provided on the brush ring water outlet channel, and the water inlet channel of the anti-siphon component is connected to the brush ring water outlet channel; and / or, the anti-siphon component is provided on the main flush water outlet channel, and the water inlet channel of the anti-siphon component is connected to the main flush water outlet channel.

[0011] Preferably, the opening of the anti-siphon cavity faces upward, and the bottom of the cavity connects the outlet end of the water inlet channel and the inlet end of the water outlet channel. The outlet end of the water inlet channel extends upward and is higher than the inlet end of the water outlet channel. The anti-siphon component includes an anti-siphon base and an anti-siphon pad. The bottom end of the anti-siphon base has an insertion section with a diameter smaller than the inner diameter of the outlet end of the water inlet channel, which extends and retracts into the outlet end of the water inlet channel. The structure is simple and easy to assemble. The anti-siphon pad is sheet-shaped and located at the top of the anti-siphon base. Its diameter is larger than the inner diameter of the outlet end of the water inlet channel, thereby blocking the outlet end of the water inlet channel when the water supply is interrupted.

[0012] Preferably, to improve the sealing performance of the vent hole, the anti-siphon pad is made of soft rubber and is disposed on the top surface of the anti-siphon base; or, the anti-siphon pad is made of hard rubber and is integrally formed with the anti-siphon base.

[0013] Preferably, the anti-siphon pad has a mounting hole in the middle, the anti-siphon base has a protruding post at the top, the protruding post has an annular groove, and the anti-siphon pad is fitted into the annular groove of the protruding post through the mounting hole, which makes assembly easy and replacement convenient.

[0014] Preferably, the anti-siphon seat has a cross-shaped cross section, or the anti-siphon seat is a tubular component with water passage holes on its periphery, both of which have telescopic installation function and water passage function.

[0015] Preferably, the anti-siphon body and the anti-siphon cover are assembled together by means of snaps, threads, screws, interference fits or adhesive.

[0016] Preferably, a sealing ring is provided between the anti-siphon body and the anti-siphon cover to improve the sealing performance and prevent water dripping during water replenishment.

[0017] Preferably, the anti-siphon cover has spaced protrusions around the vent hole to prevent the vent hole from being blocked and the anti-siphon function from failing when the top of the anti-siphon cover is attached to the water tank cover.

[0018] Preferably, since national standards stipulate that for any structure with a one-way valve, the one-way valve must be removed before testing, in order to avoid forming a one-way valve structure, the water outlet end of the water inlet channel is provided with a water passage groove, so that the anti-siphon component will not be removed as a one-way valve during testing.

[0019] Preferably, for ease of molding, the water inlet channel includes an inlet section, a connecting section, and an outlet section. The outlet section is vertically arranged and connects to the anti-siphon cavity. The connecting section is located around the inlet end of the outlet section and is horizontally arranged. The inlet end of the connecting section has a pre-drilled hole and a plug. The inlet section is located around the inlet end of the connecting section and is horizontally arranged.

[0020] As can be seen from the above description of this utility model, this utility model has the following beneficial effects: The toilet flushing device provided by this utility model is equipped with an anti-siphon component in its water tank replenishment channel. It can connect the water tank replenishment channel to the outside without affecting the water tank replenishment function, thereby preventing the water tank from siphoning and preventing water in the toilet tank from flowing back into the water source. The anti-siphon component includes an anti-siphon base and an anti-siphon pad, which has a simple structure and is easy to mold and install; The anti-siphon cover has spaced protrusions around the vent hole, which can prevent the vent hole from being blocked and the anti-siphon function from failing when the top of the anti-siphon cover is attached to the water tank cover. The water inlet channel has a water passage groove around its outlet end, so that the anti-siphon component will not be removed as a one-way valve during testing. Attached Figure Description

[0021] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0022] in: Figure 1 This is an isometric view of the inlet valve; Figure 2 An isometric view of a toilet flushing device with an anti-siphon mechanism. Figure 1 ; Figure 3 This is a top view of a toilet flushing device with an anti-siphon mechanism; Figure 4 It is the isometric view of the anti-siphon component. Figure 1 ; Figure 5 It was an explosion of the anti-siphon component. Figure 1 ; Figure 6 It was an explosion of the anti-siphon component. Figure 2 ; Figure 7 This is a front view of the anti-siphon component; Figure 8 This is a side cross-sectional view of the anti-siphon component. Figure 1 ; Figure 9 It is the axonometric view of the anti-siphon body. Figure 1 ; Figure 10 An isometric view of a toilet flushing device with an anti-siphon mechanism. Figure 2 ; Figure 11 It was an explosion of the anti-siphon component. Figure 3 ; Figure 12 This is a side cross-sectional view of the anti-siphon component. Figure 2 ; Figure 13 It is the axonometric view of the anti-siphon body. Figure 2 ; Figures 1 to 13The markings are as follows: Inlet valve 1, Inlet valve body 11, Inlet pipe 111, Brush ring valve 112, Main flush valve 113, Water replenishment valve 114, Water tank water replenishment channel 1141, Water seal water replenishment channel 1142, Water stop cup 12, Brush ring water stop cup 121, Main flush water stop cup 122, Water replenishment water stop cup 123, Anti-siphon assembly 2, Anti-siphon body 21, Anti-siphon cavity 211, Inlet channel 212, Water passage 2121, Outlet channel 213, Anti-siphon component 22, Anti-siphon seat 221, Anti-siphon pad 222, Anti-siphon cover 23, Vent hole 231, Protrusion 232. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] Please see Figures 1 to 13 A toilet flushing device with an anti-siphon mechanism includes a water tank (not shown), an inlet valve 1, and an anti-siphon assembly 2, wherein... The water inlet valve 1 is located in the water tank.

[0025] The inlet valve 1 includes an inlet valve body 11 and a stop cup 12. The inlet valve body 11 is provided with an inlet pipe 111, a brush ring valve 112, a main flush valve 113, and a water replenishment valve 114. The inlet ends of the brush ring valve 112, the main flush valve 113, and the water replenishment valve 114 are all connected to the inlet pipe 111. The brush ring valve 112 is provided with a brush ring water outlet channel 213, the main flush valve 113 is provided with a main flush water outlet channel 213, and the water replenishment valve 114 is provided with a water replenishment channel, preferably including a water seal water replenishment channel 1142 and a water tank water replenishment channel 1141. The stop cup 12 includes a brush ring stop cup 121, a main flush stop cup 122, and a water replenishment stop cup 123, which are respectively used to accommodate the floats of the brush ring valve 112, the main flush valve 113, and the water replenishment valve 114. For the working principle of the inlet valve 1, please refer to the invention patent with patent number CN202210062991.0 and invention title "Multi-valve staged water outlet device for toilet".

[0026] The anti-siphon component 2 is disposed on the water supply channel and includes an anti-siphon body 21, an anti-siphon component 22, and an anti-siphon cover 23.

[0027] The anti-siphon body 21 is provided with an anti-siphon cavity 211, a water inlet channel 212, and a water outlet channel 213. In this embodiment, the opening of the anti-siphon cavity 211 faces upward, and the bottom of the cavity connects the water outlet end of the water inlet channel 212 and the water inlet end of the water outlet channel 213. The water outlet end of the water inlet channel 212 extends upward and is higher than the water inlet end of the water outlet channel 213. The water inlet channel 212 of the anti-siphon assembly 2 is connected to the water supply channel of the water inlet valve 1, preferably the water tank supply channel 1141, while the water outlet channel 213 is connected to the main flush stop cup 122 through a conduit. In one embodiment, the water inlet channel 212 of the anti-siphon assembly 2 can also be connected to the water seal supply channel 1142.

[0028] In other embodiments, the anti-siphon component 2 is provided on the brush ring water outlet channel, and the water inlet channel of the anti-siphon component 2 is connected to the brush ring water outlet channel; and / or, the anti-siphon component 2 is provided on the main flush water outlet channel, and the water inlet channel of the anti-siphon component 2 is connected to the main flush water outlet channel.

[0029] In one embodiment, for ease of molding, the water inlet channel 212 includes an inlet section, a connecting section, and an outlet section. The outlet section is vertically arranged and connects to the anti-siphon cavity 211. The connecting section is located around the water inlet end of the outlet section and is horizontally arranged. The water inlet end of the connecting section has a pre-drilled hole and a plug. The water inlet section is located around the water inlet end of the connecting section and is horizontally arranged.

[0030] The anti-siphon component 22 is movably installed at the outlet end of the water inlet channel 212.

[0031] In one embodiment, the anti-siphon component 22 includes an anti-siphon seat 221 and an anti-siphon pad 222.

[0032] The bottom end of the anti-siphon seat 221 has an insertion section with a diameter smaller than the inner diameter of the outlet end of the water inlet channel 212, which is telescopically inserted into the outlet end of the water inlet channel 212. The structure is simple and easy to assemble. Preferably, the cross-section of the anti-siphon seat 221 is cross-shaped, or the anti-siphon seat 221 is a tubular component with water passage holes on its periphery, both of which have telescopic installation and water passage functions.

[0033] The anti-siphon pad 222 is sheet-shaped and located at the top of the anti-siphon seat 221. Its diameter is larger than the inner diameter of the water outlet end of the water inlet channel 212, so that the water outlet end of the water inlet channel 212 can be blocked when the water supply is interrupted.

[0034] The anti-siphon cover 23 seals the opening of the anti-siphon cavity 211 and has a vent 231 aligned with the anti-siphon component 22. Preferably, the anti-siphon body 21 and the anti-siphon cover 23 are assembled together by means of snaps, threads, screws, interference fits, or adhesive. Additionally, a sealing ring is provided between the anti-siphon body 21 and the anti-siphon cover 23 to improve sealing and prevent water dripping during water replenishment.

[0035] In one embodiment, to improve the sealing performance of the vent 231, the anti-siphon pad 222 is made of soft rubber and is disposed on the top surface of the anti-siphon pad 222. Preferably, the anti-siphon pad 222 has a mounting hole in the middle, and the top of the anti-siphon base 221 has a protruding post with an annular groove. The anti-siphon pad 222 is fitted into the annular groove of the protruding post through the mounting hole, which facilitates assembly and replacement. Alternatively, please refer to [link to relevant documentation]. Figure 6 The anti-siphon pad 222 is made of hard rubber and is integrally formed with the anti-siphon base 221, which can reduce the number of parts and the complexity of assembly.

[0036] In use, when the water tank replenishment channel 1141 is filled with water, the anti-siphon component 22 opens the outlet end of the water inlet channel 212 and blocks the vent hole 231. When the water tank replenishment channel 1141 is not filled with water, the outlet end of the water inlet channel 212 is blocked and the vent hole 231 is opened, so that it can communicate with the outside and avoid siphoning.

[0037] Based on the above embodiments, the anti-siphon cover 23 has spaced protrusions 232 around the vent 231, which can prevent the vent 231 from being blocked and the anti-siphon function from failing when the top of the anti-siphon cover 23 is attached to the water tank cover.

[0038] In one embodiment, since national standards stipulate that any structure with a one-way valve must have the one-way valve removed before testing, in order to avoid forming a one-way valve structure, a water passage groove 2121 is provided around the water outlet end of the water inlet channel 212. The water passage groove 2121 can be one or multiple, so that the anti-siphon component 2 will not be removed as a one-way valve during testing.

[0039] The toilet flushing device provided by this utility model is equipped with an anti-siphon component 2 in its water tank replenishment channel 1141. This component can connect the water tank replenishment channel to the outside without affecting the water tank replenishment function, thereby preventing siphoning and avoiding the situation where water in the toilet tank flows backward into the water source.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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.

[0041] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A toilet flushing device with an anti-siphon mechanism, characterized in that, Includes water tank, inlet valve, and anti-siphon assembly; The water inlet valve is located in the water tank; The inlet valve includes an inlet valve body and a stop cup. The inlet valve body is provided with an inlet pipe, a brush ring valve, a main flush valve, and a water supply valve. The inlet ends of the brush ring valve, the main flush valve, and the water supply valve are all connected to the inlet pipe. The brush ring valve is provided with a brush ring water outlet channel, the main flush valve is provided with a main flush water outlet channel, and the water supply valve is provided with a water supply channel. The stop cup includes a brush ring stop cup, a main flush stop cup, and a water supply stop cup, which are respectively used to accommodate the floats of the brush ring valve, the main flush valve, and the water supply valve. The anti-siphon assembly is disposed on the water supply channel. The anti-siphon assembly includes an anti-siphon body, an anti-siphon component, and an anti-siphon cover. The anti-siphon body has an anti-siphon cavity, a water inlet channel, and a water outlet channel. The anti-siphon component is movably installed at the water outlet end of the water inlet channel. The anti-siphon cover seals the opening of the anti-siphon cavity and has a vent hole, which is aligned with the anti-siphon component. When the water supply channel is flowing, the anti-siphon component opens the water outlet end of the water inlet channel and blocks the vent hole. When the water supply channel is stopped, it blocks the water outlet end of the water inlet channel and opens the vent hole.

2. A toilet flushing device with an anti-siphon mechanism according to claim 1, characterized in that, The water supply channel includes a water seal water supply channel and a water tank water supply channel. The water inlet channel of the anti-siphon component is connected to the water tank water supply channel, and the water outlet channel of the anti-siphon component is connected to the main flush stop cup through a conduit.

3. A toilet flushing device with an anti-siphon mechanism according to claim 1, characterized in that, The anti-siphon component is provided on the water outlet channel of the brush ring, and the water inlet channel of the anti-siphon component is connected to the water outlet channel of the brush ring; and / or, The main flush outlet channel is equipped with the anti-siphon component, and the inlet channel of the anti-siphon component is connected to the main flush outlet channel.

4. A toilet flushing device with an anti-siphon mechanism according to claim 1, characterized in that, The anti-siphon cavity has an upward-facing opening, and its bottom connects the outlet end of the inlet channel and the inlet end of the outlet channel. The outlet end of the inlet channel is higher than the inlet end of the outlet channel. The anti-siphon component includes an anti-siphon base and an anti-siphon pad. The bottom end of the anti-siphon base has an insertion section with a diameter smaller than the inner diameter of the outlet end of the inlet channel, which extends and retracts into the outlet end of the inlet channel. The anti-siphon pad is sheet-shaped and located at the top of the anti-siphon base, with a diameter larger than the inner diameter of the outlet end of the inlet channel.

5. A toilet flushing device with an anti-siphon mechanism according to claim 4, characterized in that, The anti-siphon pad is made of soft rubber and is placed on the top surface of the anti-siphon base. The anti-siphon pad has an installation hole in the middle, and the top of the anti-siphon base has a protruding post with an annular groove. The anti-siphon pad is fitted into the annular groove of the protruding post through the installation hole.

6. A toilet flushing device with an anti-siphon mechanism according to claim 4, characterized in that, The anti-siphon pad is made of hard rubber and is integrally molded with the anti-siphon base.

7. A toilet flushing device with an anti-siphon mechanism according to claim 1, characterized in that, The anti-siphon body and the anti-siphon cover are assembled together by means of snaps, threads, screws, interference fits or adhesive; a sealing ring is also provided between the anti-siphon body and the anti-siphon cover.

8. A toilet flushing device with an anti-siphon mechanism according to claim 1, characterized in that, The anti-siphon cover has spaced protrusions around the vent holes.

9. A toilet flushing device with an anti-siphon mechanism according to claim 1, characterized in that, The water inlet channel is provided with a water passage groove around its outlet end, and there is at least one water passage groove.

10. A toilet flushing device with an anti-siphon mechanism according to claim 1, characterized in that, The water inlet channel includes an inlet section, a connecting section, and an outlet section; the outlet section is vertically arranged and connected to the anti-siphon cavity; the connecting section is arranged around the water inlet end of the outlet section and is horizontally arranged, the water inlet end of the connecting section is provided with a reserved hole and a plug; the water inlet section is arranged around the water inlet end of the connecting section and is horizontally arranged.

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