Water tank overflow structure
By incorporating a displacement device with an additional functional connection port in the water tank and a U-shaped water tank design, the problem of insufficient overflow capacity in traditional sunken water tanks is solved, achieving a flat and compact toilet seat that meets national standards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional sunken water tanks cannot meet the national standard for overflow capacity, which means that the toilet seat cannot be made flat or low, affecting the toilet's appearance design.
Design a displacement device with an additional functional connection port to directly discharge overflow water into the sewer through an overflow pipe, simplifying the toilet structure and avoiding watermarks. Combine a U-shaped tank design and a one-way valve to ensure smooth drainage.
It achieves the national standard overflow capacity requirement without increasing the toilet bowl structure, and makes the water tank flat and low, simplifying the toilet structure and improving the compactness of component installation.
Smart Images
Figure CN224031820U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to closestool technical field, especially a water tank overflow structure. BACKGROUND
[0002] The traditional water tank needs to meet the national standard safety water level and overflow capacity requirement, needs to make an overflow port in the water tank, flows into the pot surface from the gap in the middle of the top of closestool, therefore the water tank needs to be very high, however the current intelligent closestool pursues the pure flat appearance modeling, tries to make the cover plate thin and low, so a kind of water tank that appears on the market is a sunken water tank, however this kind of water tank cannot meet the national standard overflow capacity requirement, so big brands dare not make it, and now it is urgently needed to develop a sunken water tank, which can leave enough structural space for the cover plate, the cover plate can be made as flat and low as possible, and it is also needed to design on this basis to meet the national standard safety water level and overflow capacity requirement, solve the problem of standard, and be legal and safe. SUMMARY
[0003] The utility model provides a water tank overflow structure that is beneficial to making the water tank low.
[0004] A water tank overflow structure includes a water tank and a shifter.
[0005] The water tank is provided with an overflow pipe in the water storage cavity, the water outlet end of the overflow pipe extends to the bottom of the water tank and forms an overflow port, when the water in the water storage cavity is too much, the water overflows the water inlet of the overflow pipe and is discharged as overflow water through the overflow port.
[0006] The shifter is provided with a main sewage passage and a sewage branch, one end of the main sewage passage is a receiving end and is provided with a receiving port extending upward and opening upward, which can be connected to the S-shaped water outlet end of the closestool, the other end is a sewage end and is provided with a sewage port extending downward and opening downward, which can be connected to the sewer at the installation position of the closestool, the sewage branch is arranged between the receiving end and the sewage end of the main sewage passage, one end of the sewage branch is connected to the main sewage passage, and the other end is provided with an additional function communication port opening upward, the shifter is arranged at the bottom of the water tank, and the additional function communication port is connected to the overflow port.
[0007] The water tank overflow structure provided by the utility model can directly discharge the overflow water into the sewer through the shifter with the additional function communication port, on the one hand, the closestool does not need to be provided with a water outlet for overflow on the pot surface, the structure of the closestool is simplified, and water marks on the closestool pot surface are avoided, on the other hand, the shifter is arranged at a low position, which is beneficial to making the water tank of the closestool flat and low.
[0008] Preferably, the end of the sewage branch is provided with a core exit, and the core exit is provided with a plug, which provides a core exit for the molding of the sewage branch, thereby reducing the complexity of the mold and the difficulty of molding.
[0009] Preferably, the plug and the core exit are assembled together by interference fit, thread, welding, adhesion or buckle.
[0010] Preferably, since the diameter of the sewage branch is small, in order to avoid the small opening and small flow of the additional function communication port, the additional function communication port is designed in a long strip shape to form a larger opening.
[0011] Preferably, the inside of the additional function communication port is divided into at least two channels, which can be connected to different drainage components or exhaust components. The water tank is also provided with an exhaust channel communicating with the additional function communication port, and the odor suction component of the closestool can discharge odor through the shifter.
[0012] Preferably, a one-way valve is installed in the channel, which blocks the overflow port when there is no water in the overflow pipe, and opens the overflow port when there is water in the overflow pipe, thereby preventing sewage in the shifter from entering the water tank.
[0013] Preferably, the additional function communication port is provided with a mounting bracket, which is provided with a vertical telescopic hole. The one-way valve includes a telescopic rod and a spring. The top end of the telescopic rod is provided with an overflow cover, and a sealing gasket is installed on the top of the overflow cover. The bottom end of the telescopic rod is inserted into the telescopic hole, and the spring is sleeved between the telescopic rods, with the top abutting against the overflow cover and the bottom abutting against the mounting bracket. The spring provides the force for the overflow cover to cover the overflow port.
[0014] Preferably, the top of the water tank is provided with a tank cover, which is provided with a base overflow channel. The water outlet of the base overflow channel is located directly above the water inlet of the overflow pipe, so that the water immersed in the top of the water tank can also be collected and discharged through the shifter.
[0015] Preferably, the horizontal cross section of the water tank is in the shape of U, and the middle part of the water tank is concave to form a space for accommodating the receiving end, thereby improving the compactness of the internal structure and components of the closestool.
[0016] Preferably, the communication port of the sewage branch and the sewage main channel is located at the top of the sewage main channel, and the sewage branch has an included angle with the horizontal plane, the included angle is 1°-3°, which is beneficial to drainage, and can also avoid the sewage in the sewage main channel from overflowing from the branch. In addition, in order to reduce the forming difficulty of the sewage main channel, and at the same time improve the displacement size length and flexibility of the shifter, the sewage main channel comprises a receiving section, at least one lengthening pipe and a sewage section which are sequentially connected, and in order to increase the installation firmness and stability of the shifter, the periphery of the receiving end is provided with a support seat, and the periphery of the sewage end is provided with a flange plate, which can provide reliable support for the shifter.
[0017] From the above description of the utility model, the utility model has the following beneficial effects:
[0018] The overflow structure of the water tank provided by the utility model can directly drain the overflow water into the sewer through the shifter with the additional function communication port, on the one hand, without the need to set a water outlet for overflow on the toilet pot surface, the structure of the toilet is simplified, and water marks on the toilet pot surface are avoided, on the other hand, the shifter with a low installation position is used for drainage, which is beneficial to realize the flat and low water tank of the toilet.
[0019] The end of the sewage branch is provided with a mold core exit, which provides a mold core exit for the forming of the sewage branch, thereby reducing the complexity of the mold and the difficulty of forming.
[0020] The additional function communication port is designed in a long strip shape, forming a larger opening, reducing the influence of the diameter of the sewage branch thereon.
[0021] The additional function communication port is designed in a long strip shape, forming a larger opening, reducing the influence of the diameter of the sewage branch thereon.
[0022] The one-way valve is installed in the channel, which can prevent the sewage in the shifter from entering the water tank.
[0023] The horizontal cross section of the water tank is in a U shape, which can improve the compactness of the internal structure and components of the toilet.
[0024] The communication port of the sewage branch and the sewage main channel is located at the top of the sewage main channel, and the sewage branch has an included angle with the horizontal plane, the included angle is 1°-3°, which is beneficial to drainage, and can also avoid the sewage in the sewage main channel from overflowing from the branch. BRIEF DESCRIPTION OF DRAWINGS
[0025] The drawings described herein are used to provide a further understanding of the utility model, and constitute a part of the utility model. The schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute an improper limitation on the utility model.
[0026] Wherein:
[0027] Figure 1 is an axial view of a water tank overflow structure;
[0028] Figure 2 is an exploded view of a water tank overflow structure Figure 1 ;
[0029] Figure 3 is an exploded view of a water tank overflow structure Figure 2 ;
[0030] Figure 4 is a sectional view of a water tank overflow structure Figure 1 ;
[0031] Figure 2 is a sectional view of a water tank overflow structure Figure 6 ;
[0032] Figure 3 is a sectional view of a water tank overflow structure Figure 7 ; (overflow pipe drainage state)
[0033] Figure 8 is an axial view of a shifter;
[0034] Figure 9 is an exploded view of a shifter;
[0035] Figures 1 to 9 is a sectional view of a shifter;
[0036] Figures 1 to 9 The marks in are respectively: water tank 1, water storage cavity 11, overflow pipe 12, overflow port 121, tank cover 13, base overflow passage 131, exhaust passage 14, shifter 2, main drainage passage 21, receiving port 211, drainage branch 22, additional function communication port 221, mold core exit port 222, plug 223, one-way valve 23, telescopic rod 231, spring 232, overflow cover 233, sealing gasket 234, support seat 24, flange plate 25, receiving section 26, lengthening pipe 27 and drainage section 28. DETAILED DESCRIPTION
[0037] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, specific embodiments will be described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.
[0038] Please refer to , a water tank 1 overflow structure, comprising a water tank 1 and a shifter 2.
[0039] The water tank 1 is provided with an overflow pipe 12 in the water storage cavity 11, the water outlet end of the overflow pipe 12 extends to the bottom of the water tank 1 and forms an overflow port 121, when the water in the water storage cavity 11 is too much, the water will overflow the water inlet of the overflow pipe 12 and be discharged through the overflow port 121.
[0040] In an embodiment, the top of the water tank 1 is provided with a tank cover 13, the tank cover 13 is provided with a base overflow channel 131, the water outlet of the base overflow channel 131 is located directly above the water inlet of the overflow pipe 12, so that the water immersed in the top of the water tank 1 can also be collected and discharged through the displacer 2.
[0041] The displacer 2 is provided with a main discharge channel 21 and a branch discharge channel 22 in the main discharge channel 21, one end of the main discharge channel 21 is a receiving end and is provided with a receiving port 211 extending upward and opening upward, which can be connected to the S-shaped outlet end of the closestool, the other end is a discharge end and is provided with a discharge port 212 extending downward and opening downward, which can be connected to the sewer at the closestool installation position. The branch discharge channel 22 is arranged between the receiving end and the discharge end of the main discharge channel 21, one end of the branch discharge channel 22 is connected to the main discharge channel 21, and the other end is provided with an additional function communication port 221 opening upward. The displacer 2 is arranged at the bottom of the water tank 1, and the additional function communication port 221 is connected to the overflow port 121. Preferably, the horizontal cross section of the water tank 1 is U-shaped, and the middle part of the water tank 1 is concave to form a space for the receiving end, so as to improve the compactness of the internal structure and components of the closestool.
[0042] In order to reduce the difficulty of forming the branch discharge channel 22, in an embodiment, the end of the branch discharge channel 22 is provided with a mold core exit port 222, the mold core exit port 222 is provided with a plug 223, which provides a mold core exit port 222 for the forming of the branch discharge channel 22, thereby reducing the complexity of the mold and the difficulty of forming. Preferably, the plug 223 and the mold core exit port 222 are assembled together by interference fit, thread, welding, bonding or buckle.
[0043] In order to avoid the influence of the small diameter of the branch discharge channel 22 on the size of the additional function communication port 221, in an embodiment, the additional function communication port 221 is designed in a long strip shape to form a larger opening for easy connection with the overflow port 121. In addition, the inside of the additional function communication port 221 is divided into at least two channels, which can be connected to different drainage components or exhaust components, for example, in another embodiment, the water tank 1 is also provided with an exhaust channel 14 connected to the additional function communication port 221, and the odor suction component of the closestool can discharge odor through the displacer 2.
[0044] On the basis of the above-mentioned embodiment, the one-way valve 23 is installed in the channel, the one-way valve 23 blocks the overflow port 121 when the overflow pipe 12 is empty, and opens the overflow port 121 when the overflow pipe 12 is filled with water, so that the sewage in the shifter 2 cannot enter the water tank 1. Preferably, the additional function communication port 221 is provided with a mounting bracket, the mounting bracket is provided with a vertical telescopic hole, the one-way valve 23 comprises a telescopic rod 231 and a spring 232, the top end of the telescopic rod 231 is provided with an overflow cover 233, the top of the overflow cover 233 is provided with a sealing gasket 234, the bottom end of the telescopic rod 231 is inserted into the telescopic hole, the spring 232 is sleeved between the telescopic rods 231, the top of the spring 232 abuts against the overflow cover 233, and the bottom of the spring 232 abuts against the mounting bracket. The spring 232 provides the overflow cover 233 with a force for blocking the overflow port 121.
[0045] Regarding the specific structure of the shifter 2, in an embodiment, the communication port of the sewage branch 22 and the sewage main channel 21 is located at the top of the sewage main channel 21, and the sewage branch 22 and the horizontal plane have an included angle A, the included angle A is 1°-3°, preferably 2°, which is beneficial to drainage and can also prevent the sewage in the sewage main channel 21 from overflowing from the branch. In addition, in order to reduce the forming difficulty of the sewage main channel 21 and improve the displacement size length and flexibility of the shifter 2, the sewage main channel 21 comprises a receiving section 26, at least one lengthening pipe 27 and a sewage section 28 which are sequentially connected, in order to increase the installation firmness and stability of the shifter 2, the periphery of the receiving end is provided with a support seat 24, and the periphery of the sewage end is provided with a flange plate 25, which can provide reliable support for the shifter 2.
[0046] The overflow structure of the water tank 1 can directly drain the overflow water into the sewer through the shifter 2 with the additional function communication port 221, on the one hand, without the need to set a sewage overflow port on the toilet pot surface, the structure of the toilet is simplified, and water marks on the toilet pot surface are avoided, on the other hand, the shifter 2 with a low installation position is used for drainage, which is beneficial to realize that the toilet water tank 1 is flat and low.
[0047] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0048] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0049] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0050] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0051] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0052] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the changes, modifications, replacements and modifications of the above embodiments made by the person skilled in the art are within the protection scope of the present application.
Claims
1. A water tank overflow structure, characterized in that, Includes water tank and shifter; The water tank has an overflow pipe in its water storage chamber, and the outlet end of the overflow pipe extends to the bottom of the water tank to form an overflow port. The shifter is provided with a main sewage discharge channel and a branch sewage discharge channel; one end of the main sewage discharge channel is a receiving end with an upward-extending receiving interface and an opening facing upward, and the other end is a sewage discharge end with a downward-extending sewage discharge outlet; the branch sewage discharge channel is located between the receiving end and the sewage discharge end of the main sewage discharge channel, one end of the branch sewage discharge channel is connected to the main sewage discharge channel, and the other end is provided with an additional functional connection port with an opening facing upward; The shifter is located at the bottom of the water tank, and the additional function port is connected to the overflow port.
2. The water tank overflow structure according to claim 1, characterized in that, The end of the sewage branch is provided with a mold core exit port, and the mold core exit port is provided with a plug.
3. The water tank overflow structure according to claim 2, characterized in that, The plug and the mold core exit are assembled together by interference fit, thread, welding, bonding or snap fastening.
4. The water tank overflow structure according to claim 1, characterized in that, The additional function connection port is elongated.
5. The water tank overflow structure according to claim 4, characterized in that, The additional function connection port is internally divided into at least two channels; the water tank is also provided with an exhaust channel that connects to the additional function connection port.
6. A water tank overflow structure according to claim 1 or 5, characterized in that, A one-way valve is installed in the channel. The one-way valve blocks the overflow port when there is no water in the overflow pipe and opens the overflow port when there is water in the overflow pipe.
7. The water tank overflow structure according to claim 6, characterized in that, The additional function connection port is provided with a mounting bracket, which has a vertical telescopic hole. The one-way valve includes a telescopic rod and a spring. The top of the telescopic rod is provided with an overflow cover, and a sealing gasket is installed on the top of the overflow cover. The bottom end of the telescopic rod is inserted into the telescopic hole. The spring is sleeved between the telescopic rods, with its top pressing against the overflow cover and its bottom pressing against the mounting bracket. The spring provides force for the overflow cover to seal the overflow port.
8. The water tank overflow structure according to claim 1, characterized in that, The water tank is equipped with a cover on top, and the cover has a base overflow channel. The outlet of the base overflow channel is located directly above the inlet of the overflow pipe.
9. The water tank overflow structure according to claim 1, characterized in that, The horizontal cross-section of the water tank is U-shaped, and the concave middle part of the water tank forms a relief opening to accommodate the receiving end.
10. A water tank overflow structure according to claim 1, characterized in that, The connection point between the sewage branch and the main sewage channel is located at the top of the main sewage channel, and the sewage branch has an angle of 1° to 3° with respect to the horizontal plane; the main sewage channel includes a receiving section, at least one extension pipe and a sewage discharge section connected in sequence; the receiving end is provided with a support seat around its periphery, and the sewage discharge end is provided with a flange around its periphery.