Waterproof knob for intelligent closestool
By designing a waterproof knob and using a waterproof Y-shaped sealing ring and sealant, the waterproof performance and user experience issues of smart toilet knobs in humid environments have been solved, resulting in a smart toilet knob that is simple in structure, easy to install, low in cost, and hygienic.
Patent Information
- Application Number
- CN202520594061.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing smart toilet knobs are not waterproof in humid environments, have complex structures, provide a poor user experience, have high production costs, and are difficult to clean.
A waterproof knob has been designed, comprising a knob cover, a knob base, a rotating inner core, and a waterproof cover. It employs a waterproof Y-shaped sealing ring and sealant, combined with interference fit and stud fixation, to ensure the sealing of the internal circuit board of the knob. The exterior features an anti-slip texture and a removable waterproof cover, enhancing waterproof performance and user experience.
It achieves long-term reliable waterproofing in humid environments, simplifies the installation process, reduces production costs, improves user comfort and cleaning convenience, and extends service life.
Smart Images

Figure CN223926811U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a control component of an intelligent closestool, in particular to a waterproof knob for an intelligent closestool with waterproof function, which is suitable for an intelligent closestool. BACKGROUND
[0002] With the continuous progress of science and technology and the improvement of people's living standards, intelligent closestools, as a sanitary ware that improves the quality of life, have gradually gained favor in the market. Intelligent closestools are usually equipped with multiple functions, such as seat heating, warm water cleaning, warm air drying, automatic deodorization, etc. The implementation of these functions mostly relies on electronic control systems, and the operation of these functions by users is mainly completed through knobs or buttons.
[0003] However, the knobs of traditional intelligent closestools have many problems in use. First, because the closestool environment is humid, the sealing performance of traditional knobs is poor, which is easy to be damp or to let water in, causing circuit short circuit or knob failure, affecting service life and user experience. Second, the waterproof design of existing knobs is mostly complex, which not only increases production cost but also reduces assembly efficiency. In addition, the appearance design of some knobs is not simple enough, which is difficult to clean and easy to breed bacteria, not meeting the sanitary requirements of modern families.
[0004] In view of the above problems, although there are some attempts of waterproof knobs in the market, most of them have the following shortcomings:
[0005] 1. Limited waterproof performance: Some waterproof knobs only use simple sealing glue or waterproof gaskets, which are difficult to maintain reliable waterproof effect in long-term humid environment.
[0006] 2. Complex structure: Some waterproof knobs adopt a complex multi-layer sealing structure to achieve better waterproof effect, which not only increases production cost but also makes the assembly process cumbersome and prone to assembly errors.
[0007] 3. Poor user experience: Some waterproof knobs ignore the convenience and comfort of user operation in design, the surface treatment of the knob is not smooth enough, or a large force is needed when operating, affecting the use experience.
[0008] Therefore, there is an urgent need in the market for a waterproof knob for an intelligent closestool with simple structure, reliable waterproof performance, easy installation and good user experience to meet the high-quality needs of modern families for intelligent closestools. The utility model is based on this background and proposes an innovative solution to solve the shortcomings of existing intelligent closestool knobs in waterproof performance, structural design and user experience. SUMMARY
[0009] The utility model discloses a waterproof knob for intelligent closestool can effectively prevent moisture from entering the inside of the knob, ensure that the circuit board part with encoder is sealed in the inside of the knob, realize the isolation sealing with humid environment, ensure that can long time normal use under humid environment.
[0010] In order to realize above object, designed this waterproof knob with simple structure, simple installation process and high waterproof effect.
[0011] A kind of waterproof knob for intelligent closestool, including the knob cover for control, knob seat, rotating inner core and waterproof cover;Rotating inner core includes the PCB installation platform at lower end and the rotating shaft at center, circuit board is fixed on the PCB installation platform;Knob seat is cylindrical as a whole, one end opening is provided with the accommodation rotating inner core cavity, the other end is provided with the middle hole that can penetrate rotating shaft;Rotating inner core is pressed into after being set with waterproof Y type sealing ring, rotating shaft passes through the middle hole, rotating knob cover is fixed with rotating shaft by stud, after being fixed, waterproof Y type sealing ring inside and outside both sides are in extrusion state, realize the waterproof isolation of rotating inner core upper portion and lower portion;Waterproof cover of waterproof sealing is also provided on the rear end of knob seat.
[0012] The waterproof knob for intelligent closestool, characterized in that the circuit board is provided with an encoder for receiving signals, and the rotating shaft is provided with a waterproof sealing groove matched with the waterproof Y type sealing ring to enhance the waterproof capacity.
[0013] The waterproof knob for intelligent closestool, wherein the outer side of the waterproof Y type sealing ring is in interference fit with the knob seat, and the inner side is in interference fit with the rotating shaft, and the cross section of the waterproof Y type sealing ring is Y-shaped.
[0014] The waterproof knob for intelligent closestool, characterized in that the waterproof cover is provided with a stepped portion for glueing along the circumference, and an annular U-shaped groove is formed after the waterproof cover is assembled with the knob seat, and the annular U-shaped groove is provided with sealing glue.
[0015] The waterproof knob for intelligent closestool has at least the following advantages: the sealing ring and waterproof sealing glue ensure long-term use of the knob in a humid environment; the knob is provided with a sensing device inside, which can accurately identify user operation and improve user experience; the smooth shell and waterproof design make the knob easy to clean and maintain hygiene; the simple knob structure is easy to install and suitable for various types of intelligent closestools; the product with improved functions reduces production costs and realizes high quality and low price. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structure exploded schematic view of the utility model;
[0017] Figure 2 It is a sectional view schematic view of the utility model;
[0018] Figure 3 The utility model discloses a circuit board structure schematic view.
[0019] Figure 4 The utility model discloses a waterproof cover structure schematic view. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.
[0021] Figure 1 The utility model discloses a structure exploded schematic view. Figure 2 The utility model discloses a sectional view schematic view. Figure 3 The utility model discloses a circuit board structure schematic view. Figure 4 The utility model discloses a waterproof knob for intelligent closestool, including the knob cover (1) for control, knob seat (3), rotates inner core and waterproof cover (5), rotates inner core includes the PCB installation platform at lower extreme and the rotating shaft (411) at the center, and the circuit board (4) is fixed on the PCB installation platform, the knob seat (3) is cylindrical as a whole, and one end opening is equipped with the cavity of containing rotating inner core, and the other end is equipped with the middle hole of the rotating shaft (411) can be penetrated, rotates inner core and is pressed into from the opening side of knob seat (3) after the waterproof Y type sealing ring (2) is set on, and the rotating shaft (411) passes through the middle hole, and the knob cover (1) is fixed with the rotating shaft (411) through the stud, and after fixing, the waterproof Y type sealing ring (2) both inside and outside is in extrusion state, realizes the waterproof isolation of rotating inner core upper portion and lower portion, and still be equipped with waterproof cover (5) of waterproof sealing on the rear end of knob seat (3). The encoder (41) of receiving signal is equipped on the circuit board (4), and the waterproof sealing groove (411A) of cooperating with waterproof Y type sealing ring (2) is equipped on the rotating shaft (411), and the waterproof capacity is strengthened. The outside of waterproof Y type sealing ring (2) is interference fit with knob seat (3), and the inside is interference fit with the rotating shaft (411), and the cross section of waterproof Y type sealing ring (2) is Y type. The waterproof cover (5) is equipped with the step (51) of gluing along the circumference, and the annular U type groove (51A) is formed after the waterproof cover (5) and knob seat (3) are assembled, and the sealing glue is equipped on the annular U type groove (51A).
[0022] In this embodiment, the knob seat (3) of the waterproof knob for intelligent toilet is made of corrosion-resistant plastic material, which has good waterproof performance. The waterproof Y-shaped sealing ring (2) is made of high-quality rubber material, which has excellent elasticity and sealing performance. The circuit board (4) is provided with an encoder (41) for receiving signals, which can accurately identify the user's operation instructions and display the working status of the knob through the indicator light, improving the user experience.
[0023] The knob seat (3) of the waterproof knob for intelligent toilet is made of metal material, such as stainless steel, which has higher strength and corrosion resistance. Other structures and assembly methods are the same as in Embodiment 1. By using the knob seat (3) made of metal material, the waterproof knob can better adapt to humid environments and prolong the service life. At the same time, the outer surface of the knob cover (1) is provided with anti-slip texture, which is convenient for users to operate in humid environment, further improving the practicality and user experience of the product.
[0024] The waterproof cover (5) of the waterproof knob for intelligent toilet is designed to be detachable, which is convenient for maintenance and replacement of internal components. The waterproof cover (5) is connected with the knob seat (3) through threads, ensuring reliable sealing after assembly. High-performance waterproof sealant is coated on the annular U-shaped groove (51A) between the waterproof cover (5) and the knob seat (3), further improving the waterproof performance. In addition, a temperature sensor is also added on the circuit board (4) to monitor the temperature change inside the knob, preventing short circuit or overheating problems caused by moisture. Through these improvements, the waterproof knob not only has better waterproof performance, but also has higher reliability and intelligence level.
[0025] The above disclosure is only one embodiment of the present application, of course, cannot be limited by this, those skilled in the art can understand that the above-mentioned embodiment can be implemented by all or part of the process, and the equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.
Claims
1. A waterproof knob for a smart toilet, characterized in that, The device includes a knob cover (1), a knob seat (3), a rotating inner core, and a waterproof cover (5) for operation. The rotating inner core includes a PCB mounting platform at the lower end and a rotating shaft (411) at the center. The circuit board (4) is fixed on the PCB mounting platform. The knob seat (3) is cylindrical in shape. One end is open and has a cavity to accommodate the rotating inner core. The other end has a central hole through which the rotating shaft (411) can pass. After the rotating inner core is fitted with a waterproof Y-shaped sealing ring (2), it is pressed in from the opening side of the knob seat (3). The rotating shaft (411) passes through the central hole and the knob cover (1) is fixed to the rotating shaft (411) by a stud. After fixing, the waterproof Y-shaped sealing ring (2) is in a compressed state on both the inner and outer sides, so as to achieve waterproof isolation between the upper and lower parts of the rotating inner core. A waterproof cover (5) with waterproof sealing is also provided on the rear end of the knob seat (3).
2. The waterproof knob for a smart toilet according to claim 1, characterized in that, The circuit board (4) is equipped with an encoder (41) for receiving signals, and the rotating shaft (411) is equipped with a waterproof sealing groove (411A) that cooperates with the waterproof Y-type sealing ring (2) to enhance the waterproof capability.
3. The waterproof knob for a smart toilet according to claim 2, characterized in that, The waterproof Y-type sealing ring (2) has an interference fit with the knob seat (3) on the outside and an interference fit with the rotating shaft (411) on the inside. The waterproof Y-type sealing ring (2) has a Y-shaped cross section.
4. The waterproof knob for a smart toilet according to claim 1, characterized in that, The waterproof cover (5) has a step (51) for applying sealant around its perimeter. After the waterproof cover (5) and the knob seat (3) are assembled, an annular U-shaped groove (51A) is formed, and sealant is applied to the annular U-shaped groove (51A).
5. The waterproof knob for a smart toilet according to claim 1, characterized in that, The outer surface of the knob cover (1) is provided with anti-slip texture to facilitate user operation.
6. The waterproof knob for a smart toilet according to claim 1, characterized in that, The knob base (3) is made of corrosion-resistant plastic or metal to adapt to humid environments.
7. The waterproof knob for a smart toilet according to claim 1, characterized in that, The circuit board (4) is also equipped with an indicator light to show the working status of the knob.