Self-service water supply device for dental chair
By installing a water dispensing sensor switch on the dental chair and simplifying the water circuit structure, patients can now add water themselves, solving the problem of cumbersome water dispensing operations in existing dental chairs and improving surgical efficiency and patient experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN NUOSHENG MEDICAL EQUIP CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-19
AI Technical Summary
Adding water to the existing dental chair is cumbersome, affecting surgical efficiency and resulting in a poor patient experience. Doctors also find it difficult to control the amount and timing of water intake.
A water dispensing sensor switch is installed on the dental chair, allowing patients to add water themselves. The water circuit structure is simplified, and a three-way valve is installed inside the mounting base. The drain pipe is hidden inside the mounting base, and the cup holder and water tank are designed for easy cleaning.
It improves the convenience of patients refilling water themselves and the efficiency of surgery, enhances the patient experience, simplifies the operation process, and keeps the device clean and easy to clean.
Smart Images

Figure CN224370184U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental chair technology, and in particular to a patient self-service water filling device for a dental chair. Background Technology
[0002] A dental chair, also known as a dental chair, is an essential medical instrument for dental surgery. It includes a backrest, seat, dental light, instrument tray, and water supply system. During dental treatment, patients typically need to rinse their mouths multiple times to clean away debris, and thirst is common during prolonged procedures. Currently, the water dispensing button on the dental chair is located on the control panel or on the outside of the chair. The dentist or assistant controls the dispensing button to fill the patient's cup, leaving the patient with only passive control. This method is cumbersome; after placing the disposable cup on its holder, the dentist or assistant needs to move their hand to another location to operate the dispensing button, affecting surgical efficiency. Furthermore, it's difficult for the dentist or assistant to control the amount of water the patient drinks or the timing of rinsing / drinking, resulting in a poor patient experience. Utility Model Content
[0003] The purpose of this invention is to provide a self-service water dispensing device for dental chairs. By placing a water dispensing sensor switch close to the cup holder, it is convenient for patients to add water themselves for rinsing and drinking. It also makes it easier for the operating doctor or assistant to add water for the patient, thereby improving the patient experience and ensuring surgical efficiency.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] A patient self-service water filling device for a dental chair includes a mounting base, a water outlet, a cup holder, and a water trough. The water outlet is mounted on the top of the mounting base, and the cup holder and the water trough are both disposed on the mounting base. The cup holder is located directly below the water outlet of the water outlet, and the water trough is located below the cup holder.
[0006] The mounting base is equipped with a water outlet sensor switch, which is located between the water outlet of the water outlet head and the cup holder;
[0007] The mounting base is provided with a handle at one end, and the handle is located below the water tank.
[0008] Furthermore, a three-way valve is provided inside the mounting base. The three-way valve has an inlet pipe, a flushing pipe and an outlet. The flushing pipe is located at the bottom of the cup holder, and the water outlet of the flushing pipe faces the inner wall of the water tank.
[0009] The water outlet sensor switch is electrically connected to the three-way valve.
[0010] Furthermore, a drain pipe is connected to the bottom of the water tank, the drain pipe is connected to a main drain pipe, and the top of the main drain pipe is connected to the water inlet pipe; the drain pipe is located inside the mounting base.
[0011] Furthermore, the mounting base includes a vertical cavity and a horizontal cavity, which together form an L-shaped mounting base;
[0012] The cup holder and the water outlet sensor switch are both located in the vertical cavity, the water tank is located at the top of the horizontal cavity, and the drain pipe is located inside the horizontal cavity;
[0013] The handle portion is grooved, and the bottom surface of the end of the transverse cavity has an inclined surface, with the handle portion located on the inclined surface.
[0014] Furthermore, a drain cylinder is provided in the center of the bottom surface of the water tank, and an installation cylinder is provided in the transverse cavity. The drain cylinder is located inside the installation cylinder, and the bottom surface of the water tank is in contact with the top surface of the transverse cavity.
[0015] The mounting cylinder and the water tank are limited by a one-way leakage component.
[0016] Furthermore, the mounting base includes an L-shaped shell, a bottom shell, and a top shell. The top shell is disposed on the top of the L-shaped shell, the cup holder, the water outlet sensor switch, and the flushing pipe are disposed on the top shell, and the bottom shell is disposed on the bottom of the L-shaped shell. The L-shaped shell and the bottom shell form the transverse cavity.
[0017] The mounting cylinder is located on the L-shaped shell, and a water receiving tray is provided at the end of the drain pipe. The water receiving tray is connected to the L-shaped shell, and the edge of the mounting cylinder is provided with a concave surface for supporting the top edge of the one-way leakage component.
[0018] Furthermore, the one-way leakage component includes a receiving plate and a sealing plate. The bottom of the receiving plate is provided with a semi-circular leakage outlet. The sealing plate is used to seal the leakage outlet. The end of the sealing plate is connected to a counterweight groove. The edge of the sealing plate is rotatably connected to the receiving plate.
[0019] Furthermore, the bottom surface of the receiving plate is inclined towards the drain outlet, the bottom edge of the drain outlet is horizontal, and the top surface of the sealing plate is in contact with the bottom surface of the drain outlet.
[0020] Furthermore, the cup holder is provided with a drain outlet, which is located above the water tank.
[0021] The technical solution provided by this utility model can include the following beneficial effects:
[0022] This invention incorporates a water dispensing sensor switch on the mounting base, positioned between the water outlet and the cup holder. When the dentist or assistant places a disposable cup on the holder, raising their hand triggers the sensor to add water. This simple and quick operation allows patients to easily add water themselves, enhancing the patient experience. The handle allows the mounting base to rotate on the dental chair frame to facilitate dental procedures. Positioning the handle below the water reservoir allows both the patient and assistant on either side of the mounting base to easily pull it. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the patient self-service water filling device for a dental chair according to an embodiment of the present invention;
[0024] Figure 2 yes Figure 1 Vertical cross-sectional view of the patient self-watering device on the dental chair shown;
[0025] Figure 3 It is a schematic diagram showing the assembly of the bottom shell, drain pipe, water tray and one-way leakage component;
[0026] Figure 4 This is an axial cross-sectional view of a one-way leaking component;
[0027] The components include: mounting base 1, handle 11, vertical cavity 12, horizontal cavity 13, L-shaped shell 16, bottom shell 17, top shell 18, water outlet 2, cup holder 3, water tank 4, water outlet sensor switch 5, three-way valve 6, flushing pipe 8, sewage pipe 9, water receiving tray 10, main drain pipe 7, one-way leakage component 01, sealing plate 012, and counterweight groove 013. Detailed Implementation
[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0029] The following is combined Figures 1 to 4 This invention describes a patient self-service water filling device for a dental chair according to an embodiment of the present invention.
[0030] This embodiment of a patient self-service water filling device for a dental chair includes a mounting base 1, a water outlet 2, a cup holder 3, and a water tank 4. The water outlet 2 is installed on the top of the mounting base 1. The cup holder 3 and the water tank 4 are both disposed on the mounting base 1. The cup holder 3 is located directly below the water outlet of the water outlet 2, and the water tank 4 is located below the cup holder 3.
[0031] The mounting base 1 is equipped with a water outlet sensor switch 5, which is located between the water outlet of the water outlet head 2 and the cup holder 3.
[0032] The mounting base 1 is provided with a handle 11 at its end, and the handle 11 is located below the water tank 4.
[0033] In this invention, a water dispensing sensor switch 5 is provided in the mounting base 1, and the water dispensing sensor switch 5 is located between the water outlet of the water outlet 2 and the cup holder 3. When the operating doctor or assistant places the disposable cup on the cup holder, moving their hand upward will trigger the water dispensing sensor switch 5 to add water, making the operation simple and quick. In this embodiment of the invention, water dispensing stops when the hand leaves the water dispensing sensor switch 5. Because the water dispensing sensor switch 5 is located between the water outlet of the water outlet 2 and the cup holder 3, the patient can easily observe the position of the switch, and the patient can easily operate to add water themselves, improving the customer experience. Another aspect of this invention defines the position of the handle 11, which allows the mounting base 1 to rotate on the dental chair frame to make way for dental surgery operations. Positioning the handle 11 below the water tank 4 allows the patient and assistant doctor located on both sides of the mounting base 1 to pull the mounting base 1 more conveniently.
[0034] Specifically, a three-way valve 6 is installed inside the mounting base 1. The three-way valve 6 has an inlet pipe, a flushing pipe 8, and a water outlet 2. The flushing pipe is located at the bottom of the cup holder 3, and the water outlet of the flushing pipe 8 faces the inner wall of the water tank 4. The water outlet sensor switch 5 is electrically connected to the three-way valve 6. Connecting the inlet pipe, flushing pipe 8, and water outlet 2 via the three-way valve 6 simplifies the water pipe structure. The three-way valve 6 can be installed inside the mounting base 1 or on the dental chair frame. It should be noted that the water outlet sensor switch 5 is only used to start and stop the water outlet 2. A flushing control button is provided in a location on the dental chair frame or mounting base 1 that is not easily touched by the patient to control the water outlet of the flushing pipe. The three-way valve 6 in this solution is an electric three-way valve 6.
[0035] In one embodiment of this utility model, a drain pipe 9 is connected to the bottom of the water tank 4, the drain pipe 9 is connected to a main drain pipe 7, and the top of the main drain pipe 7 is connected to the inlet pipe; the drain pipe 9 is located inside the mounting base 1. In this design, the main drain pipe 7 is connected to the drain pipe 9 and the inlet pipe, so that the sewage in the water tank 4 can be discharged through the drain pipe 9, and the water from the inlet pipe can enter the main drain pipe 7 for rinsing, making the pipeline clean. In addition, the drain pipe 9 is located inside the mounting base 1, making the appearance of the self-service water filling device neat and easy to clean. Preferably, the cup holder 3 is provided with a drain outlet, which is located above the water tank 4. After the operation is completed, the water outlet 2 is controlled by the water outlet sensor switch 5 to release water, and the water flows through the cup holder 3 into the water tank 4 to clean the cup holder 3. Moreover, when water accumulates in the cup holder 3 due to overflowing cups, dripping water from the water outlet 2, etc., the water in the cup holder 3 can flow into the water tank 4 to prevent bacterial growth.
[0036] To further improve the neatness of the mounting base 1's appearance, preferably, the mounting base 1 includes a vertical cavity 12 and a horizontal cavity 13, which together form an L-shaped mounting base 1. The cup holder 3 and the water outlet sensor switch 5 are both located in the vertical cavity 12, the water tank 4 is located at the top of the horizontal cavity 13, and the drain pipe 9 is located inside the horizontal cavity 13. The handle 11 is grooved, and the bottom surface of the end of the horizontal cavity 13 has an inclined surface, with the handle 11 located on the inclined surface. In this design, the handle 11 is located on the bottom surface of the end of the horizontal cavity 13, making the handle 11 easier to operate, and the inclined surface also makes it easier for patients to identify the handle 11. In addition, the grooved handle 11 reduces the space occupied by the mounting base 1, which is more conducive to the surgical assistance of the assistant physician.
[0037] In one embodiment of this utility model, a drain cylinder is provided in the center of the bottom surface of the water tank 4, and an installation cylinder is provided in the horizontal cavity 13. The drain cylinder is located inside the installation cylinder, and the bottom surface of the water tank 4 is in contact with the top surface of the horizontal cavity 13. A one-way leakage component 01 is provided to limit the installation cylinder and the water tank 4.
[0038] In this design, the water tank 4 is installed using a mounting cylinder and a drain cylinder, a simple installation method. Especially when the water tank 4 is made of ceramic and has some weight, the horizontal cavity 13 provides support, allowing the water tank 4 to be placed directly within it. The drain cylinder is then inserted into the mounting cylinder, with its outer wall against the inner wall of the mounting cylinder, thus completing the installation of the water tank 4 – simple and convenient. When the water tank 4 is made of plastic, the drain cylinder and mounting cylinder are simply glued together, also offering easy installation. The one-way leakage component 01 is positioned between the mounting cylinder and the water tank 4 to facilitate its installation, making the assembly of the self-service water filling device convenient.
[0039] Preferably, the mounting base 1 includes an L-shaped shell 16, a bottom shell 17, and a top shell 18. The top shell 18 is disposed on the top of the L-shaped shell 16, the cup holder 3, the water outlet sensor switch 5, and the flushing pipe 8 are disposed on the top shell 18, and the bottom shell 17 is disposed on the bottom of the L-shaped shell 16. The L-shaped shell 16 and the bottom shell 17 form the transverse cavity 13.
[0040] The mounting cylinder is located on the L-shaped shell 16. A water receiving tray 10 is provided at the end of the drain pipe 9. The water receiving tray 10 is connected to the L-shaped shell 16. The edge of the mounting cylinder is provided with a concave surface for supporting the top edge of the one-way leakage component 01.
[0041] When assembling the drain pipe 9 and the water tray 10 into the mounting base 1, first connect the water tray 10 to the end of the drain pipe 9, then fix the water tray 10 to the inner wall of the L-shaped shell 16 with screws. Next, align the L-shaped shell 16 and the bottom shell 17 with screws. Then, place the one-way drain component 01 inside the mounting cylinder and insert the drain tube of the water tank 4 into the mounting cylinder. When it is necessary to clean the water tray 10, remove the bottom shell 17 and the screws connecting the water tray 10 to the L-shaped shell 16 to pull the water tray 10 out of the drain pipe 9.
[0042] In one embodiment of this utility model, the one-way leakage component 01 includes a receiving plate and a sealing plate 012. The bottom of the receiving plate has a semi-circular leakage outlet. The sealing plate 012 is used to seal the leakage outlet. A counterweight groove 013 is connected to the end of the sealing plate 012. The edge of the sealing plate 012 is rotatably connected to the receiving plate. The semi-circular leakage outlet at the bottom of the receiving plate facilitates cooperation with the sealing plate 012, thus facilitating the installation of the sealing plate 012. The counterweight groove 013 keeps the sealing plate 012 in a normally closed state relative to the leakage outlet. Preferably, the weight of the counterweight groove 013 is slightly greater than that of the sealing plate 012, so that the sealing plate 012 can reliably seal the leakage outlet. When the sealing plate 012 does not open smoothly, resulting in incomplete leakage, this can be solved by adding a counterweight to the counterweight groove 013.
[0043] Preferably, the bottom surface of the receiving plate is inclined towards the drain outlet, the bottom edge of the drain outlet is horizontal, and the top surface of the sealing plate 012 is in contact with the bottom surface of the drain outlet, thereby improving the sealing effect of the sealing plate 012 on the drain outlet.
[0044] Other components and operations of the patient self-service water filling device for a dental chair according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.
[0045] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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. They 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. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.
[0046] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0048] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0049] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A self-service water refilling device for patients in a dental chair, characterized in that, The device includes a mounting base, a water outlet, a cup holder, and a water tank. The water outlet is mounted on the top of the mounting base, and the cup holder and the water tank are both located on the mounting base. The cup holder is located directly below the water outlet of the water outlet, and the water tank is located below the cup holder. The mounting base is equipped with a water outlet sensor switch, which is located between the water outlet of the water outlet head and the cup holder; The mounting base is provided with a handle at one end, and the handle is located below the water tank.
2. The self-service water dispenser for dental chairs according to claim 1, characterized in that, The mounting base is equipped with a three-way valve, which has an inlet pipe, a flushing pipe and an outlet. The flushing pipe is located at the bottom of the cup holder and the water outlet of the flushing pipe faces the inner wall of the water tank. The water outlet sensor switch is electrically connected to the three-way valve.
3. The self-service water dispenser for patients of a dental chair according to claim 2, characterized in that, The bottom of the water tank is connected to a drain pipe, which is connected to a main drain pipe. The top of the main drain pipe is connected to the inlet pipe. The drain pipe is located inside the mounting base.
4. The self-watering device for patients of a dental chair according to claim 3, characterized in that, The mounting base includes a vertical cavity and a horizontal cavity, which together form an L-shaped mounting base. The cup holder and the water outlet sensor switch are both located in the vertical cavity, the water tank is located at the top of the horizontal cavity, and the drain pipe is located inside the horizontal cavity; The handle portion is grooved, and the bottom surface of the end of the transverse cavity has an inclined surface, with the handle portion located on the inclined surface.
5. The patient self-service water dispenser for the dental chair according to claim 4, characterized in that, A drain cylinder is provided in the center of the bottom surface of the water tank, and an installation cylinder is provided in the horizontal cavity. The drain cylinder is located inside the installation cylinder, and the bottom surface of the water tank is in contact with the top surface of the horizontal cavity. The mounting cylinder and the water tank are limited by a one-way leakage component.
6. The patient self-service water dispenser for the dental chair according to claim 5, characterized in that, The mounting base includes an L-shaped shell, a bottom shell, and a top shell. The top shell is disposed on the top of the L-shaped shell, the cup holder, the water outlet sensor switch, and the flushing pipe are disposed on the top shell, and the bottom shell is disposed on the bottom of the L-shaped shell. The L-shaped shell and the bottom shell form the transverse cavity. The mounting cylinder is located on the L-shaped shell, and a water receiving tray is provided at the end of the drain pipe. The water receiving tray is connected to the L-shaped shell, and the edge of the mounting cylinder is provided with a concave surface for supporting the top edge of the one-way leakage component.
7. The patient self-service water dispenser for dental chairs according to claim 5, characterized in that, The one-way leakage component includes a receiving plate and a sealing plate. The bottom of the receiving plate is provided with a semi-circular leakage outlet. The sealing plate is used to seal the leakage outlet. The end of the sealing plate is connected to a counterweight groove. The edge of the sealing plate is rotatably connected to the receiving plate.
8. The patient self-service water dispenser for the dental chair according to claim 7, characterized in that, The bottom surface of the receiving plate is inclined towards the drain outlet, the bottom edge of the drain outlet is horizontal, and the top surface of the sealing plate is in contact with the bottom surface of the drain outlet.
9. The patient self-watering device for a dental chair according to any one of claims 1-8, characterized in that, The cup holder is provided with a drain outlet, which is located above the water tank.