Dental irrigator

Abstract

The application provides a tooth washer, which comprises a base and a nozzle handle detachable from the base, the surface of the base is provided with a water inlet, a first water outlet and a second water outlet, the base is internally provided with a heating device, a first pump and a second pump, the first water outlet is communicated with the nozzle handle by a hose, and the tooth washer has a first flow path connected in sequence with the water inlet, the heating device, the first pump and the nozzle handle, and a second flow path connected in sequence with the water inlet, the heating device, the second pump and the second water outlet. The tooth washer provided by the application can heat water by the heating device, so that the water flow sprayed by the nozzle handle can be kept at a temperature suitable for human oral cavity.

Description

Technical Field

[0001] This invention relates to the field of oral health, and more specifically to a dental scaler. Background Technology

[0002] A dental flosser primarily uses the force of a high-speed jet of water under pressure to flush away plaque and debris from the gums and mouth, thus maintaining oral health. It effectively removes plaque from teeth, cleans the tongue, and powerfully removes food debris and harmful bacteria trapped in the gaps between teeth that toothbrushes and floss cannot reach. Dental flossers help prevent cavities, gingivitis, tartar buildup, and periodontitis, and also help eliminate bad breath, leading to their increasingly widespread use. Summary of the Invention

[0003] The technical problem that the invention aims to solve

[0004] Current oral irrigators lack heating elements. In winter, cold water can be quite irritating to teeth during rinsing. If warm water is needed, a separate device is required to heat the water. Due to regulations and technological limitations, heating elements must have double insulation and meet IPX7 waterproof standards. Therefore, current home oral irrigators on the market do not have heating elements and can only use room temperature water or warm water heated by other devices for oral cleaning.

[0005] Solution to the above technical problems

[0006] To address the aforementioned problems, the present invention provides a dental flosser, comprising a base and a nozzle handle. The base surface is provided with a water inlet, a first water outlet, and a second water outlet. A heating device, a first pump, and a second pump are disposed within the base. The first water outlet is connected to the nozzle handle. The dental flosser has a first flow path that sequentially connects the water inlet, the heating device, the first pump, and the nozzle handle, and a second flow path that sequentially connects the water inlet, the heating device, the second pump, and the second water outlet.

[0007] According to the above technical solution, users can perform teeth cleaning using the nozzle handle. The nozzle handle is connected to the base via a flexible hose, which improves the flexibility of the nozzle handle and allows users to easily adjust its position and angle. A heating device is installed inside the base to heat the water flow. Through a first flow path connected sequentially to the inlet, heating device, first pump, and nozzle handle, high-pressure water is sprayed out through the nozzle handle, effectively cleaning the user's mouth and guiding the heated water to the oral cavity, preventing teeth from being irritated by cold water. A second flow path connected sequentially to the inlet, heating device, second pump, and second outlet prevents the water in the first flow path from overheating, promptly channeling excess hot water from the first flow path to the second outlet, thus avoiding scalding the user's mouth.

[0008] Preferably, the second flow path includes a branch pipe section connected to the first flow path. The inlet of the branch pipe section is located between the heating device and the first pump. A first outlet water temperature detector is also installed between the inlet of the branch pipe section and the heating device.

[0009] According to the above technical solution, the first outlet water temperature detector can detect the temperature of the water flow between the branch pipe section inlet and the heating device, and adjust the power of the heating device accordingly to ensure stable outlet water temperature and prevent safety problems caused by excessively high outlet water temperature.

[0010] Preferably, a second outlet water temperature detector is installed between the inlet of the branch pipe section and the first pump.

[0011] According to the above technical solution, the second outlet water temperature detector can detect the temperature of the water flow between the branch pipe section inlet and the first pump, and adjust the power of the heating device accordingly to ensure stable outlet water temperature and prevent safety problems caused by excessively high outlet water temperature.

[0012] Preferably, a water inlet temperature detector is provided at the water inlet of the heating device.

[0013] According to the above technical solution, the inlet water temperature detector can detect the temperature at the inlet of the heating device. Based on the temperature at the inlet, the heating power of the heating device is adjusted in real time to quickly raise the water to the predetermined temperature while ensuring product safety.

[0014] Preferably, a flow detector is installed between the water inlet and the heating device.

[0015] According to the above technical solution, the flow detector can detect the flow rate change between the water inlet and the heating device. Specifically, the flow detector can detect the presence or absence of water, that is, detect whether there is water or not in the first flow path, and it can also detect the flow state of water, that is, detect whether there is water flow in the first flow path.

[0016] Preferably, a control unit is also provided inside the base, and the control unit is communicatively connected to the first pump, the second pump, the first outlet water temperature detector, and the second outlet water temperature detector. Communicatively connected to the first pump and the second pump means that the operation of the first pump and the second pump can be controlled via a motor.

[0017] According to the above technical solution, the control unit can control the working status of the first pump and the second pump by the temperature change detected by the second outlet water temperature detector.

[0018] Preferably, the dental flosser also includes a water tank, and the water inlet and the second water outlet are all connected to the water tank.

[0019] According to the above technical solution, the water tank can be used to store water, and the water stored in the water tank can enter the base through the inlet, while the water in the base can return to the water tank through the outlet.

[0020] Preferably, the heating device is one or a combination of several of the following: electromagnetic induction heater, resistance heater, membrane heater, or other heaters.

[0021] According to the above technical solutions, the principle of electromagnetic induction heating is that the alternating current generated by the induction heating power supply passes through an inductor (i.e., a coil) to generate an alternating magnetic field. A magnetically conductive object placed within this field cuts the alternating magnetic lines of force, thereby generating an alternating current (i.e., eddy current) within the water flow, thus heating the water. Resistance heaters utilize the thermal effect of current passing through a resistive element to electrically heat the water flow. Membrane heaters control the power generated by a flexible circuit board by applying voltage to the circuit. A portion of this power is converted into a thermal effect, thereby achieving the purpose of heating the water flow.

[0022] Preferably, the dental irrigator includes a water outlet switch and is configured to: in response to the opening of the water outlet switch, both the first pump and the second pump are turned on, and after a predetermined time, the second pump is turned off.

[0023] According to the above technical solution, when the water outlet switch is turned on, the first pump and the second pump operate simultaneously, which can quickly extract the air from the first flow path and the second flow path, thereby achieving the purpose of rapid water output and preventing dry burning.

[0024] Preferably, the dental irrigator is configured to: in response to a first water temperature measured by a first outlet water temperature detector being higher than a threshold, shut off the first pump and turn on the second pump.

[0025] According to the above technical solution, when the first outlet water temperature detector detects that the temperature is too high, it immediately cuts off the operation of the first pump and immediately starts the operation of the second pump, so as to protect the safety of the outlet water and balance the water flow temperature inside the base.

[0026] Preferably, the water flosser is configured to: in response to a first water temperature measured by a first water temperature detector or a second water temperature measured by a second water temperature detector being higher than a threshold, turn off the first pump and turn on the second pump.

[0027] According to the above technical solution, when the first or second outlet water temperature detector detects an excessively high temperature, the operation of the first pump is immediately cut off, and the second pump is immediately started to ensure the safety of the outlet water and balance the internal fluid temperature of the substrate.

[0028] Preferably, the dental irrigator includes a heating switch and is configured such that when the water outlet switch of the dental irrigator is closed and the heating switch is turned on, the first pump is turned off, the second pump is turned on, and the heating device is turned on according to the detection result of the flow detector.

[0029] According to the above technical solution, before teeth cleaning, the water outlet switch is closed and the heating switch is turned on, the first pump is turned off and the second pump is turned on, the flow detector detects water flow in the pipe and sends a signal to the control unit, the control unit controls the heating device to start heating, the hot fluid can circulate back to the water tank, so the water in the water tank is hot water, thus realizing the preheating function. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the dental irrigator of the present invention.

[0031] Figure 2 This is a flow chart of the water heating process of the dental irrigator of the present invention.

[0032] Figure 3 This is a flowchart of the preheating process of the dental irrigator of the present invention.

[0033] Explanation of reference numerals in the attached figures

[0034] 1. Base; 11. Inlet; 12. First outlet; 13. Second outlet; 14. Heating device; 141. Inlet of heating device; 15. First pump; 16. Second pump; 17. First motor; 18. Second motor; 19. Branch pipe section; 191. Inlet of branch pipe section; 192. First outlet of branch pipe section; 193. Second outlet of branch pipe section; 110. First outlet water temperature detector; 111. Second outlet water temperature detector; 112. Inlet water temperature detector; 113. Flow detector; 2. Nozzle handle; 21. Nozzle; 22. Handle; 23. Outlet water switch; 24. Heating switch; 3. Hose; 4. Water tank; a. First flow path; b. Second flow path; T1. Inlet water temperature; T2. First water temperature; T3. Second water temperature. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] First Implementation Method

[0037] This invention provides a dental flosser. Figure 1 This is a schematic diagram of the dental irrigator of the present invention, as shown below. Figure 1 As shown, the dental irrigator includes a base 1 and a nozzle handle 2 that can be removed from the base 1. The surface of the base 1 is provided with a water inlet 11, a first water outlet 12 and a second water outlet 13. A heating device 14, a first pump 15 and a second pump 16 are provided inside the base 1. The first water outlet 12 is connected to the nozzle handle 2 by a hose 3 and can be moved to the position to be cleaned by the hose 3. The dental irrigator has a first flow path a that is sequentially connected to the water inlet 11, the heating device 14, the first pump 15 and the nozzle handle 2, and a second flow path b that is sequentially connected to the water inlet 11, the heating device 14, the second pump 16 and the second water outlet 13.

[0038] The user can perform teeth cleaning using the nozzle handle 2. The nozzle handle 2 is connected to the base 1 via a flexible hose 3, which improves the flexibility of the nozzle handle 2. In this embodiment, the flexible hose 3 can be made of PVC (polyvinyl chloride), which has good flexibility and allows the user to easily adjust the position and angle of the nozzle handle 2 during use.

[0039] A heating device 14 is installed inside the base 1 to heat the water flowing through the first flow path a. Through the first flow path a, which is sequentially connected to the inlet 11, the heating device 14, the first pump 15, and the nozzle handle 2, the high-pressure water, heated to a suitable temperature by the heating device 14, is sprayed out from the nozzle handle 2, effectively cleaning the user's mouth and avoiding the irritation of teeth by cold water. When the temperature of the high-pressure water is too high, the second flow path b, sequentially connected to the inlet 11, the heating device 14, the second pump 16, and the second outlet 13, can promptly guide the high-temperature water to the second outlet 13, preventing burns to the user due to excessively high water temperature. A heating switch 24 is also installed on the base 1 to turn the heating mode on or off.

[0040] In this embodiment, the nozzle handle 2 includes a nozzle 21, a handle 22, and a water outlet switch 23 disposed on the handle 22. The nozzle 21 is used to spray water from the first flow path a into the oral cavity. Preferably, the nozzle 21 and the handle 22 are detachably connected, thereby enabling quick assembly and disassembly of the nozzle 21 and the handle 22, facilitating rapid replacement of the nozzle 21 if it is damaged. Furthermore, the dental flosser can also be equipped with multiple different types of nozzles 21 to suit different oral conditions. The detachable connection between the nozzle 21 and the handle 22 allows users to quickly install a suitable nozzle 21 on the handle 22 according to their own oral condition, which improves oral cleaning effectiveness and usage efficiency.

[0041] In this embodiment, the first pump 15 is connected to the first motor 17, and the first motor 17 drives the first pump 15 to work. The combination of the first pump 15 and the first motor 17 can draw water out of the water tank 4. After the water flow forms a high-pressure water flow, the high-pressure water flow is sprayed out from the nozzle 21 to clean the user's mouth. The high-pressure water flow can effectively clean the gaps between teeth and gums, and the gaps between teeth, etc., to maintain oral hygiene and health.

[0042] Preferably, such as Figure 1 As shown, the second flow path b includes a branch pipe section 19, which is connected to the first flow path a. The branch pipe section inlet 191 of the branch pipe section 19 is located between the heating device 14 and the first pump 15. A first outlet water temperature detector 110 is also provided between the branch pipe section inlet 191 and the heating device 14.

[0043] More preferably, a second outlet water temperature detector 111 is provided between the branch pipe section inlet 191 and the first pump 15.

[0044] A first outlet water temperature detector 110 is installed between the branch pipe inlet 191 and the heating device 14, and a second outlet water temperature detector 111 is installed between the branch pipe inlet 191 and the first pump 15. The detection results of the first outlet water temperature detector 110 and the second outlet water temperature detector 111 are used for linkage control. The output (heating) power of the heating device 14 is adjusted or the on / off state is controlled according to the outlet water temperature in real time to ensure the stability of the outlet water temperature and prevent safety problems caused by excessive outlet water temperature.

[0045] In this embodiment, the branch pipe section 19 is a tee fitting. In addition to the branch pipe section inlet 191, it also has a branch pipe section first outlet 192 and a branch pipe section second outlet 193, which can guide the water flow to the first outlet 12 and the second outlet 13 respectively.

[0046] In this embodiment, the branch pipe section 19 has a T-shaped structure. In other embodiments of the present invention, the branch pipe section may also have other structures, such as a Y-shape.

[0047] Preferably, a water inlet temperature detector 112 is provided at the water inlet 141 of the heating device 14.

[0048] A water inlet temperature detector 112 is installed at the water inlet 141 of the heating device. The output (heating) power of the heating device 14 is adjusted in real time according to the water inlet temperature T1, so as to quickly raise the water to the predetermined temperature while ensuring product safety.

[0049] Preferably, the dental flosser also includes a water tank 4, with the water inlet 11 and the second water outlet 13 all connected to the water tank 4.

[0050] In this embodiment, the water tank 4 is used to store water, and the water stored in the water tank 4 flows through the inlet 11 along the first flow path a. Furthermore, when the water temperature is too high, the second pump 16 returns the water to the water tank 4 along the second flow path b, providing protection. In addition, the dental flosser of this invention also has a preheating function, which is achieved by the second pump 16. When the preheating function is activated, the water heated by the heating device 14 flows back to the water tank 4 under the action of the second pump 16, and the water tank 4 is then used to store hot water.

[0051] Preferably, a flow detector 113 is provided between the water inlet 11 and the heating device 14.

[0052] The flow detector 113 can detect the flow rate change between the inlet 11 and the heating device 14, determining whether water flows from the inlet 11 through the first flow path a to the heating device 14, and thus whether there is water flow inside the heating device 14. Based on the water flow detected by the flow detector 113, the heating device 14 heats when there is water flow and shuts off when there is no water flow to prevent the heater from burning dry and causing danger. If the flow detector 113 detects no water flow, the second pump 16 starts running, circulating the water in the heating device 14 for 3 seconds before stopping; or, if there is a preheating function, the second pump 16 runs continuously until the water tank 4 reaches the target temperature.

[0053] Preferably, a control unit (not shown) is also provided inside the base 1, and the control unit is communicatively connected to the first pump 15, the second pump 16 and the second outlet water temperature detector 111.

[0054] The control unit is communicatively connected to the first pump 15, the second pump 16, and the second outlet water temperature detector 111. It can control the working status of the first pump 15 and the second pump 16 by the temperature change detected by the second outlet water temperature detector 111.

[0055] In this embodiment, the control unit is communicatively connected to the first pump 15, the second pump 16, and the second outlet water temperature detector 111, as well as to the heating device 14, the flow detector 113, the inlet water temperature detector 112, the first outlet water temperature detector 110, the first motor 17, and the second motor 18. The control unit receives signals transmitted from each sensor and / or switch, and controls each component of the dental irrigator through analysis and calculation.

[0056] Preferably, the heating device 14 is one or a combination of several of the following: electromagnetic induction heater, resistance heater, membrane heater, or other heaters.

[0057] The principle of an electromagnetic induction heater is that the alternating current generated by the induction heating power supply passes through an inductor (i.e., a coil) to produce an alternating magnetic field. A magnetically conductive object placed within this field cuts the alternating magnetic lines of force, thereby generating an alternating current (i.e., eddy currents) within the fluid. These eddy currents cause the atoms in the water to move at high speeds and randomly. The atoms collide and rub against each other, generating heat energy, thus heating the water. Electromagnetic induction heating is a highly efficient, energy-saving, and rapid heating method, characterized by high thermal efficiency and therefore low energy consumption. Furthermore, electromagnetic induction heaters are less expensive, more reliable in operation, and have a longer service life compared to other types of heaters.

[0058] Resistance heaters utilize the heating effect of an electric current passing through a resistive element to electrically heat water. Resistance heaters are characterized by precise temperature control and uniform heating. Furthermore, their simple structure makes them easy to maintain.

[0059] Membrane heaters are divided into thin-film heaters and thick-film heaters. They control the power generated by the flexible circuit board by applying voltage to the circuit. A portion of the power is converted into heat, thereby heating the water flow.

[0060] Second Implementation Method

[0061] In this embodiment, the control of the dental flosser is described in detail.

[0062] Preferably, the dental irrigator is configured such that, in response to the opening of the water outlet switch 23 of the dental irrigator, both the first pump 15 and the second pump 16 are turned on, and after a predetermined time, the second pump 16 is turned off.

[0063] In this embodiment, when the water outlet switch 23 is turned on, the first pump 15 and the second pump 16 operate simultaneously, which can quickly extract the air from the first flow path a and the second flow path b, allowing the water to flow in the first flow path a as soon as possible, thus achieving the effect of rapid water output. As a variation, only the first pump 15 can be turned on. Although the pumping speed is slightly slower than when the first pump 15 and the second pump 16 are turned on simultaneously, it can still effectively guide water from the water tank 4 to the first flow path a.

[0064] Preferably, the dental irrigator is configured to: in response to a first water temperature measured by the first water temperature detector 110 being higher than a threshold, shut off the first pump 15 and turn on the second pump 16.

[0065] Preferably, the water flosser is configured to: in response to a first water temperature measured by a first water temperature detector 110 or a second water temperature measured by a second water temperature detector 111 being higher than a threshold, turn off the first pump 15 and turn on the second pump 16.

[0066] In this embodiment, when the first outlet water temperature detector 110 or the second outlet water temperature detector 111 detects that the temperature is too high, i.e., higher than the threshold, the operation of the first pump 15 and the first motor 17 is immediately cut off, and the operation of the second pump 16 and the second motor 18 is immediately started to guide the water flow through the second flow path b to the water tank 4, so as to protect the outlet water safety and balance the water flow temperature inside the base 1.

[0067] Figure 2 This is a flow chart of the water heating process of the dental irrigator of the present invention, as shown below. Figure 2 As shown, when the heating switch 24 and the water outlet switch 23 are opened simultaneously, in step S1, the first motor 17 and the second motor 18 operate simultaneously, driving the first pump 15 and the second pump 16 to start working and quickly evacuate the air from the first flow path a and the second flow path b. After 3 seconds, in step S2, the second motor 18 stops operating and the second pump 16 is turned off, while the first pump 15 continues to operate. The 3-second time is the aforementioned "specified time," which is not limited to 3 seconds and can be set as needed. After step S2 is completed, the judgment steps J1 and J2 are entered simultaneously.

[0068] In judgment step J1, the flow detector 113 detects the water flow in the first flow path a, thereby determining the water flow status inside the heating device 14 and transmitting a signal to the control unit. The control unit issues a command to control the on / off state of the heating device 14. When the flow detector 113 detects no water flow, the process returns to step S2, and the first pump 15 continues to operate until the flow detector 113 detects water flow, at which point the next step is performed. Judgment step J2 is performed concurrently with judgment step J1. In judgment step J2, the water temperature measured by the inlet water temperature detector 112 is the inlet water temperature T1. The inlet water temperature detector 112 measures the inlet water temperature T1 and returns the measurement result to the control unit. If the inlet water temperature is 35℃≤T1≤42℃, the temperature measurement result is transmitted to the control unit, proceeding to step S4. At this time, the first pump 15 continues to operate, and the user can use the water flosser to clean their teeth with hot water without heating. When the inlet water temperature T1>42℃, the process proceeds to step S8, and the first pump 15 stops operating to prevent the user from being scalded by the high-temperature water.

[0069] When the inlet water temperature T1 < 35℃, and the flow detector 113 detects water flow in step J1, the process proceeds to step S3. The temperature measurement result is transmitted to the control unit, which calculates and outputs a corresponding initial power P1 signal to the heating device 14. After setting the initial heating power P1, the process proceeds to step S5. In step S5, the heating device 14 heats the water flow according to the initial power P1 required by the control unit.

[0070] In step J3, after the water is heated by the heating device 14, it flows to the first outlet water temperature detector 110. The first outlet water temperature detector 110 measures the water flow, and the measured temperature is the first water temperature T2. When T2 < 33℃, the process returns to step S5, and the control unit instructs the heating device 14 to continue heating at the initial power P1. If T2 > 42℃, the process proceeds to step S6, where the control unit instructs the heating device 14 to stop heating and shuts off the first pump 15. The second pump 16 is turned on and kept running for 5 seconds to guide the high-temperature water flow back to the water tank 4, thereby reducing the water temperature to a lower level to avoid scalding. When 33℃ ≤ T2 ≤ 42℃, the process proceeds to step S7.

[0071] In step S7, based on the measurement result of the first water temperature T2 in step J3, the deviation between the first water temperature T2 and the target temperature is calculated, and the heating power of the heating device 14 is adjusted to achieve the target water temperature. The adjusted power is the adjusted power P2.

[0072] Generally speaking, the initial power P1 is greater than the adjustment power P2. Therefore, when the water just enters the heating device 4, it is heated quickly with a relatively large initial power P1. After that, it is finely adjusted according to the measurement result of the first water temperature T2, that is, the adjustment heating is based on the adjustment power P2, so that the water can quickly reach the target temperature.

[0073] After step S7 is completed, the judgment step J4 is entered. The water temperature detected by the second outlet water temperature detector 111 is the second water temperature T3. If the second water temperature T3 does not meet the condition of 35℃≤T3≤40℃, the judgment step J5 is entered.

[0074] In step J5, if the second water temperature T3 ≤ 42℃, the process returns to step S7 to adjust the heating power so that the second water temperature T3 meets the suitable temperature for the oral cavity. If the second water temperature T3 > 42℃, the process returns to step S6, the first pump 15 is turned off and the heating device 14 stops heating, and the second pump 16 runs for 5 seconds and then turns off, thereby quickly guiding the high-temperature water flow in the flow path through the second flow path b to the water tank 4 to cool the water flow.

[0075] In step J4, if the second water temperature T3 meets the condition of 35℃≤T3≤40℃, the water jet from the irrigator will continue to spray water to clean the oral cavity. After the cleaning is completed, the heating switch 24 and the water outlet switch 23 will be turned off, and the teeth cleaning process will be completed.

[0076] Third Implementation Method

[0077] In this embodiment, the dental irrigator has a preheating function. When the preheating switch (not shown) of the dental irrigator is turned on, the first pump 15 is turned off, the second pump 16 is turned on, and the heating device 14 is turned on according to the detection result of the flow detector. Figure 3 This is a flowchart of the preheating process of the dental irrigator of the present invention, as follows: Figure 3 As shown, before teeth cleaning, the preheating function is activated. After turning on the preheating switch (not shown), the process proceeds to step SA1. In step SA1, the first pump 15 and the first motor 17 are turned off, while the second pump 16 and the second motor 18 are turned on. The water in the pipeline flows along the second flow path b from the inlet 11 through the heating device 14 and the second pump 16, and finally flows back to the water tank 4 from the second outlet 13. After this, the process proceeds to the judgment step JA1. In the judgment step JA1, the flow detector 113 detects whether there is water flow in the pipeline, i.e., the first flow path a. When no water flow is detected, the process returns to step SA1. When the flow detector 113 detects water flow, the process proceeds to step SA2. The flow detector 113 sends a signal to the control unit, which controls the heating device 14 to start heating. The heated water can then circulate back to the water tank 4 along the second flow path b. After a period of time, the water in the water tank 4 gradually becomes hot water, and the preheating switch is turned off, ending the preheating process. At this time, when the water outlet switch 23 is turned on, the heated water is directly supplied from the water tank 4 to the first flow path a. Thus, the heating device 4 can heat the water to the target temperature without working or with only a small amount of power, and can quickly supply the water of a suitable temperature to the user's mouth.

[0078] Those skilled in the art will understand that specific technical features in various embodiments can be adaptively split or combined. Such splitting or combining of specific technical features will not cause the technical solution to deviate from the principles of the present invention; therefore, the technical solutions after splitting or combining will all fall within the protection scope of the present invention. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0079] The technical solutions of the present invention have been described in conjunction with the accompanying drawings and various embodiments. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions resulting from such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A dental flosser, characterized in that, The dental irrigator includes a base and a nozzle handle. The base has a water inlet, a first water outlet, and a second water outlet on its surface. A heating device, a first pump, and a second pump are installed inside the base. The first water outlet is connected to the nozzle handle. The dental irrigator has the following features: The first flow path is sequentially connected to the water inlet, the heating device, the first pump, and the nozzle handle, and... The second flow path is connected in sequence to the water inlet, the heating device, the second pump, and the second water outlet. The dental flosser also includes a water tank, and both the water inlet and the second water outlet are connected to the water tank. The dental irrigator also includes a water outlet switch and is configured as follows: In response to the opening of the water outlet switch, both the first pump and the second pump are turned on, and after a predetermined time, the second pump is turned off. A flow detector is installed between the water inlet and the heating device. The dental irrigator also includes a preheating switch and is configured as follows: When the water outlet switch is closed and the preheating switch is open, the first pump is turned off, the second pump is turned on, and the heating device is turned on according to the detection result of the flow detector. The second flow path includes a branch pipe section, which is connected to the first flow path. The inlet of the branch pipe section is located between the heating device and the first pump. A first outlet water temperature detector is also provided between the inlet of the branch pipe section and the heating device.

2. The dental irrigator as described in claim 1, characterized in that, A second outlet water temperature detector is installed between the water inlet of the branch pipe section and the first pump.

3. The dental irrigator as described in claim 1, characterized in that, The heating device is equipped with a water inlet temperature detector.

4. The dental flosser as described in claim 2, characterized in that, The base is also equipped with a control unit, which is communicatively connected to the first pump, the second pump, the first outlet water temperature detector, and the second outlet water temperature detector.

5. The dental irrigator as described in claim 1, characterized in that, The heating device is one or a combination of several of the following: electromagnetic induction heater, resistance heater, membrane heater, or other heaters.

6. The dental irrigator as described in claim 1, characterized in that, The dental irrigator is configured as follows: In response to the first water temperature measured by the first outlet water temperature detector being higher than a threshold, the first pump is turned off and the second pump is turned on.

7. The dental flosser as described in claim 2, characterized in that, The dental irrigator is configured as follows: In response to a first water temperature measured by the first outlet water temperature detector or a second water temperature measured by the second outlet water temperature detector being higher than a threshold, the first pump is turned off and the second pump is turned on.

Images