Intelligent closestool flushing water tank sealing structure
By employing a dual-sealing structure in the smart toilet tank, combining inverted "Z"-shaped and inverted "L"-shaped sealing rings with a stainless steel support ring, the problem of decreased sealing performance caused by the aging of the sealing rings is solved, achieving more efficient tank sealing, extending service life, and reducing maintenance difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHAOZHOU HANRUI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
The sealing rings of existing smart toilets are prone to aging and deformation due to water quality and temperature during long-term use, resulting in decreased sealing performance, water tank leakage, and affecting the user experience and home environment.
It adopts a double sealing structure, including an inverted "Z"-shaped first sealing ring and an inverted "L"-shaped second sealing ring, combined with a stainless steel support ring. It prevents water leakage through multi-directional contact, and enhances the outer seal through the pressure ring design. The support ring provides stable support and prevents the sealing ring from deforming.
It significantly improves the sealing performance of the flushing water tank, prevents water leakage from the tank, extends the service life of the sealing components, and reduces maintenance frequency and cost.
Smart Images

Figure CN224148834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart toilet technology, and more specifically, to a sealing structure for a smart toilet flushing tank. Background Technology
[0002] As people's living standards improve, smart toilets are becoming increasingly popular. The sealing performance of the flush tank in a smart toilet is crucial. Poor sealing can lead to leaks, wasting water and potentially damaging the surrounding floor and walls, affecting the user experience and home environment.
[0003] Utility Model Patent Application No. CN202220026261.0 discloses a sealing structure for a smart toilet flushing tank, relating to the field of smart toilet technology. The structure includes a tank with a cap on top and a flushing mechanism fixedly installed on one side of the cap. The tank includes a tank body, a sealing ring, and an inlay groove. The top edge of the tank body has an inlay groove, in which the sealing ring is inlaid. This utility model provides that when the cap screws are installed onto the tank body, the cap and the T-shaped sealing ring come into contact and press together as the screws tighten, resulting in a tight seal and significantly improved sealing. This effectively prevents water from leaking from the connection between the cap and the tank body when the inlet valve malfunctions and the water level inside the tank rises continuously.
[0004] The aforementioned patent achieves a seal by embedding a sealing ring into the mounting groove of the water tank body and then installing the cover screws to the bottom of the water tank body. As the screws are tightened, the cover and the T-shaped sealing ring come into contact and are squeezed together to achieve a tight seal. However, during long-term use, the rubber sealing ring is easily affected by factors such as water quality and temperature, which can cause it to age and deform, resulting in a decrease in sealing performance.
[0005] Therefore, we have made improvements to this by proposing a smart toilet flushing tank sealing structure. Utility Model Content
[0006] The purpose of this invention is to address the issue that rubber sealing rings are prone to aging and deformation due to factors such as water quality and temperature during long-term use, which leads to a decline in sealing performance.
[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0008] A smart toilet flush tank sealing structure is designed to improve the aforementioned issues.
[0009] The application is as follows:
[0010] The device includes: a water tank body with a cap installed on top, a flushing device installed above the cap; a sealing component between the opening edge of the water tank body and the cap; a first annular mounting groove is provided on the upper side of the opening edge of the water tank body, a second mounting groove corresponding to the first mounting groove is provided on the bottom of the cap, and the sealing component is located between the first mounting groove and the second mounting groove.
[0011] As a preferred embodiment of the intelligent toilet flushing tank sealing structure provided by this utility model, mounting bolts are provided on all four sides of the top of the cover, and mounting blocks that are threadedly engaged with the mounting bolts are installed on the inner walls of all four sides of the tank body.
[0012] As a preferred embodiment of the intelligent toilet flushing tank sealing structure provided by this utility model, the four edges of the cover are equipped with downwardly extending positioning blocks, and the outer walls of the four sides of the tank body are all provided with positioning grooves that cooperate with the positioning blocks; the cover and the tank body are positioned by the positioning blocks and positioning grooves, and are connected by the threaded connection of the mounting bolts and the mounting blocks, making the installation process simple and the positioning accurate; when disassembling, the cover and the tank body can be easily separated by simply unscrewing the mounting bolts, which is convenient for inspecting, cleaning or replacing the sealing components. At the same time, the setting of the first pressure ring and the second pressure ring also facilitates the fixing and disassembly of the sealing ring, greatly reducing the difficulty and workload of later maintenance.
[0013] As a preferred embodiment of the intelligent toilet flush tank sealing structure provided by this utility model, the sealing assembly includes a first sealing ring disposed in a first mounting groove, a second sealing ring disposed in a second mounting groove, and a support ring disposed between the first and second sealing rings, the height of the support ring being less than the depth of the first mounting groove; wherein the first sealing ring is made of elastic silicone material with an inverted "Z" shaped cross-section, the second sealing ring is made of polyurethane material with an inverted "L" shaped cross-section, and the support ring is made of stainless steel with a rectangular cross-section; the first sealing ring, made of elastic silicone material, possesses excellent water resistance, high temperature resistance, and aging resistance, and can... It can maintain good elasticity and sealing ability for a long time under complex water quality and temperature environments; the polyurethane material selected for the second sealing ring has high strength and wear resistance, reducing damage caused by long-term use and friction. The combination of the two effectively extends the service life of the sealing component and reduces the cost and frequency of frequent replacement due to sealing structure failure. The support ring is made of stainless steel, and its rigid structure provides stable support for the first and second sealing rings. Under the pressure of water pressure inside the water tank and the pressure generated by tightening the mounting bolts, it prevents the sealing ring from deforming or shifting, ensuring that the sealing structure is always in good working condition, and enhancing the stability and reliability of the entire sealing structure.
[0014] As a preferred embodiment of the intelligent toilet flushing tank sealing structure provided by this utility model, the first sealing ring includes a first upper horizontal part, a first vertical part and a lower horizontal part, the lower horizontal part is in contact with the bottom surface of the first mounting groove, and the first vertical part is in contact with the inner sidewall of the first mounting groove.
[0015] As a preferred embodiment of the intelligent toilet flushing tank sealing structure provided by this utility model, a limiting groove is provided on the upper side of the inner wall of the first mounting groove, and the first upper horizontal part is in contact with the bottom surface of the limiting groove.
[0016] As a preferred embodiment of the intelligent toilet flushing tank sealing structure provided by this utility model, the second sealing ring includes a second upper horizontal part and a second vertical part. The second upper horizontal part is in contact with the top surface of the second mounting groove, and the second vertical part is in contact with the outer side wall of the first mounting groove.
[0017] As a preferred embodiment of the intelligent toilet flushing tank sealing structure provided by this utility model, a first pressure ring and a second pressure ring are respectively installed on the top surface of the second mounting groove and the bottom of the cover. The first pressure ring overlaps with the top surface of the second upper horizontal part, and the second pressure ring overlaps with the top surface of the first upper horizontal part.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model provides a sealing structure for an intelligent toilet flushing tank, comprising: a tank body with a cap mounted on top, and a flushing device mounted above the cap; a sealing component is provided between the opening edge of the tank body and the cap; a first annular mounting groove is formed on the upper side of the opening edge of the tank body, and a second mounting groove corresponding to the first mounting groove is formed on the bottom of the cap; the sealing component is located between the first and second mounting grooves. By employing a dual sealing structure of a first sealing ring and a second sealing ring, the inverted "Z"-shaped first sealing ring cooperates with the limiting groove to prevent water leakage from the inside from multiple directions; the inverted "L"-shaped second sealing ring, combined with a pressure ring design, effectively prevents water leakage from the outside. This dual protection significantly improves the sealing performance of the flushing tank compared to a traditional single rubber sealing ring. Attached Figure Description
[0020] Figure 1 A schematic diagram of the overall structure of the intelligent toilet flushing tank sealing structure provided in this application;
[0021] Figure 2 A schematic diagram showing the connection structure between the sealing component provided in this application and the water tank body and the cover;
[0022] Figure 3A schematic diagram of the second mounting slot structure provided in this application;
[0023] Figure 4 A schematic diagram of the first mounting slot structure provided in this application;
[0024] Figure 5 This is a schematic diagram of the sealing assembly structure provided in this application;
[0025] Figure 6 This is a schematic diagram of the overall partial side section structure provided for this application.
[0026] The image shows:
[0027] 1. Water tank body; 2. Cover; 3. Flushing device; 4. Sealing assembly; 41. First sealing ring; 411. First upper horizontal part; 412. First vertical part; 413. Lower horizontal part; 42. Support ring; 43. Second sealing ring; 431. Second upper horizontal part; 432. Second vertical part; 5. First mounting groove; 6. Second mounting groove; 7. Mounting bolt; 8. Mounting block; 9. Positioning block; 10. Positioning groove; 11. Limiting groove; 12. First pressure ring; 13. Second pressure ring. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not 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 on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0036] Please refer to Figure 1-6 A smart toilet flushing tank sealing structure includes: a tank body 1 with a cover 2 installed on the top, and a flushing device 3 installed above the cover 2; a sealing component 4 is provided between the opening edge of the tank body 1 and the cover 2; a first annular mounting groove 5 is provided on the upper side of the opening edge of the tank body 1, and a second mounting groove 6 corresponding to the first mounting groove 5 is provided on the bottom of the cover 2; the sealing component 4 is located between the first mounting groove 5 and the second mounting groove 6.
[0037] Please refer to Figure 2-4 The cover 2 has four mounting bolts 7 on each of its four sides. The inner walls of the water tank body 1 on each of its four sides are fitted with mounting blocks 8 that are threaded to the mounting bolts 7. The edges of the cover 2 on each of its four sides are fitted with downward-extending positioning blocks 9. The outer walls of the water tank body 1 on each of its four sides are fitted with positioning grooves 10 that are fitted to the positioning blocks 9. When the cover 2 is installed with the water tank body 1, the positioning blocks 9 at the bottom of the cover 2 are inserted into the positioning grooves 10 on the outer wall of the water tank body 1 for initial positioning. Then, the mounting bolts 7 are tightened to make them threaded to the mounting blocks 8 on the inner wall of the water tank body 1. During the tightening of the mounting bolts 7, the cover 2 gradually moves closer to the water tank body 1, applying pressure to the sealing assembly 4.
[0038] Please refer to Figure 3-6The sealing assembly 4 includes a first sealing ring 41 disposed in a first mounting groove 5, a second sealing ring 43 disposed in a second mounting groove 6, and a support ring 42 disposed between the first sealing ring 41 and the second sealing ring 43. The height of the support ring 42 is less than the depth of the first mounting groove 5. The first sealing ring 41 is made of elastic silicone material and has an inverted "Z" shaped cross-section. The second sealing ring 43 is made of polyurethane material and has an inverted "L" shaped cross-section. The support ring 42 is made of stainless steel and has a rectangular cross-section. The first sealing ring 41 includes a first upper horizontal portion 411 and a first vertical portion 412. The lower horizontal portion 413 is in contact with the bottom surface of the first mounting groove 5, and the first vertical portion 412 is in contact with the inner wall of the first mounting groove 5. A limiting groove 11 is formed on the upper side of the inner wall of the first mounting groove 5, and the first upper horizontal portion 411 is in contact with the bottom surface of the limiting groove 11. The second sealing ring 43 includes a second upper horizontal portion 431 and a second vertical portion 432. The second upper horizontal portion 431 is in contact with the top surface of the second mounting groove 6, and the second vertical portion 432 is in contact with the outer wall of the first mounting groove 5. The top surface of the second mounting groove 6 and the bottom of the cover 2 are respectively equipped with a first pressure ring 12 and a second sealing ring 12. The second pressure ring 13 overlaps with the top surface of the first pressure ring 12 and the second upper horizontal portion 431, and the second pressure ring 13 overlaps with the top surface of the first upper horizontal portion 411; the first sealing ring 41 in the sealing assembly 4 is inverted "Z" shape, the lower horizontal portion 413 is in contact with the bottom surface of the first mounting groove 5, the first vertical portion 412 is in contact with the inner side wall of the first mounting groove 5, and the first upper horizontal portion 411 is embedded in the bottom surface of the limiting groove 11, forming a multi-directional sealing contact, which can effectively prevent water in the water tank from seeping out from the inner side wall and bottom surface of the mounting groove; the inverted "L" shape of the second sealing ring 43 makes its second upper horizontal portion 431 overlap with the top surface of the first upper horizontal portion 411. The top surface of the second mounting groove 6 is fitted, and the second vertical part 432 is fitted with the outer wall of the first mounting groove 5. With the first pressure ring 12 overlapping the second upper horizontal part 431 and the second pressure ring 13 overlapping the first upper horizontal part 411, the sealing effect is further enhanced, preventing water from seeping out from the outside of the mounting groove. The stainless steel support ring 42 is located between the first sealing ring 41 and the second sealing ring 43, which supports both of them and prevents the sealing ring from being excessively deformed when subjected to pressure, ensuring the stability of the sealing structure. This achieves a reliable seal between the water tank body 1 and the cover 2, preventing water leakage from the flushing water tank.
[0039] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.
Claims
1. A sealing structure of a bidet water tank of a smart toilet, characterized by, include: A water tank body (1) with a cap (2) installed on top, and a flushing device (3) is installed above the cap (2); A sealing assembly (4) is provided between the opening edge of the water tank body (1) and the cover (2); The water tank body (1) has an annular first mounting groove (5) on the upper side of the opening edge, and the bottom of the cover (2) has a second mounting groove (6) corresponding to the first mounting groove (5). The sealing component (4) is located between the first mounting groove (5) and the second mounting groove (6).
2. The sealing structure of a bidet water tank according to claim 1, wherein, Mounting bolts (7) are provided on all four sides of the cover (2), and mounting blocks (8) that are threadedly engaged with the mounting bolts (7) are provided on the inner walls of all four sides of the water tank body (1).
3. The sealing structure of a bidet water tank according to claim 2, wherein, The four edges of the cover (2) are equipped with downwardly extending positioning blocks (9), and the four outer walls of the water tank body (1) are provided with positioning grooves (10) that cooperate with the positioning blocks (9).
4. The toilet flushing water tank sealing structure according to claim 1, characterized in that, The sealing assembly (4) includes a first sealing ring (41) disposed in a first mounting groove (5), a second sealing ring (43) disposed in a second mounting groove (6), and a support ring (42) disposed between the first sealing ring (41) and the second sealing ring (43), wherein the height of the support ring (42) is less than the depth of the first mounting groove (5).
5. The toilet flushing water tank sealing structure according to claim 4, characterized in that, The first sealing ring (41) includes a first upper horizontal part (411), a first vertical part (412) and a lower horizontal part (413). The lower horizontal part (413) is in contact with the bottom surface of the first mounting groove (5), and the first vertical part (412) is in contact with the inner wall of the first mounting groove (5).
6. The sealing structure of a toilet flushing water tank according to claim 5, wherein A limiting groove (11) is provided on the upper side of the inner wall of the first mounting groove (5), and the first upper horizontal part (411) is in contact with the bottom surface of the limiting groove (11).
7. The toilet flushing water tank sealing structure according to claim 6, characterized in that, The second sealing ring (43) includes a second upper horizontal portion (431) and a second vertical portion (432). The second upper horizontal portion (431) is in contact with the top surface of the second mounting groove (6), and the second vertical portion (432) is in contact with the outer side wall of the first mounting groove (5).
8. The toilet flushing water tank sealing structure according to claim 7, characterized in that, The top surface of the second mounting groove (6) and the bottom of the cover (2) are respectively equipped with a first pressure ring (12) and a second pressure ring (13). The first pressure ring (12) overlaps with the top surface of the second upper horizontal part (431), and the second pressure ring (13) overlaps with the top surface of the first upper horizontal part (411).
Citation Information
Patent Citations
Intelligent closestool flushing water tank sealing structure
CN216616102U