CN214679062U - Heating type oral cavity cleaning device - Google Patents
Heating type oral cavity cleaning device Download PDFInfo
- Publication number
- CN214679062U CN214679062U CN202120302151.8U CN202120302151U CN214679062U CN 214679062 U CN214679062 U CN 214679062U CN 202120302151 U CN202120302151 U CN 202120302151U CN 214679062 U CN214679062 U CN 214679062U
- Authority
- CN
- China
- Prior art keywords
- heating
- unit
- oral cavity
- heating unit
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model provides a heating type oral cavity cleaning device, which comprises a storage tank for storing cleaning liquid, a shell, a pressure pump which is arranged in the shell and is communicated with the storage tank, a cleaning head which is communicated with the pressure pump through a connecting pipe, a heating unit for heating the cleaning liquid and a control unit which is electrically connected with the heating unit, wherein the heating type oral cavity cleaning device also comprises a flow detection unit and a temperature detection unit, the flow detection unit can detect the flow of the cleaning liquid entering the heating unit, and the flow detection unit is electrically connected with the control unit; the temperature detection unit comprises an inlet temperature sensor arranged at the inlet of the heating unit, and the inlet temperature sensor is electrically connected with the control unit. The flow detection unit detects the flow of the cleaning liquid entering the heating unit, the inlet temperature sensor detects the temperature of the cleaning liquid entering the heating unit, and the control unit can accurately control the power of the heating unit so as to accurately heat the cleaning liquid to a set temperature.
Description
Technical Field
The utility model relates to an oral cavity belt cleaning device especially relates to an add hot type oral cavity belt cleaning device.
Background
Most of the existing tooth flushers have no heating function, and cannot flush teeth with hot water, but actually, teeth of many people are very sensitive, and cold water can stimulate teeth and gums when the temperature is low, so that people feel extremely uncomfortable and even painful. Meanwhile, some existing products in a plurality of products have a heating function, but the products only heat water in the water storage tank, the temperature of the water outlet is difficult to control by the heating mode, and all water in the water storage tank can be continuously heated in order to keep the water temperature, so that energy is wasted. In addition, the other one is to place the aluminium heating block between the water tank of tooth ware and the water pump end of intaking, utilizes the aluminium heating block to heat the water that will get into the water pump, and this kind is the instant heating type, can appear a large amount of calcareous matter behind the water heating and deposit more easily and pile up in the water pump, not only can influence the result of use and the life-span of water pump and whole product after long-time the use, still can form secondary pollution.
Heating or not heating of heating element just realize through temperature controller in these current tooth cleaners, and when the temperature is less than the setting value, heating element will start and heat, and this kind of heating methods also can heat when there is no water the heating tube, only can cut off the power supply when the temperature reaches certain degree, though reach the purpose of limit for temperature, nevertheless can form dry combustion method. Thus, when the water flow is reduced or not, the heating component can be dried due to the delay of heat conduction, and the components can be damaged, so that the service life of the tooth flushing device is short. In addition, current tooth flushing device is when heating, because of the temperature of the unable accurate acquisition water, is difficult to control heating element with reasonable power operation with the accuracy, leads to the too big condition to appear in heating element's power, and then leads to power consumption higher, and makes water heated too high, the condition of scald appears easily.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a heating type oral cavity cleaning device with a longer service life.
In order to achieve the above object, the present invention provides a heating type oral cavity cleaning device, which comprises a storage tank for storing cleaning liquid, a housing, a pressure pump installed in the housing and communicated with the storage tank, a cleaning head communicated with the pressure pump through a connecting pipe, a heating unit for heating the cleaning liquid, and a control unit electrically connected with the heating unit, wherein the heating type oral cavity cleaning device further comprises a flow detection unit and a temperature detection unit, the flow detection unit can detect the flow of the cleaning liquid entering the heating unit, and the flow detection unit is electrically connected with the control unit; the temperature detection unit comprises an inlet temperature sensor arranged at an inlet of the heating unit, and the inlet temperature sensor is electrically connected with the control unit.
Further, the temperature detection unit further comprises an outlet temperature sensor, the outlet temperature sensor is installed at an outlet of the heating unit, and the outlet temperature sensor is electrically connected with the control unit.
Further, an inlet and an outlet of the heating unit are respectively communicated with the pressurizing pump and the connecting pipe.
Further, the flow rate detecting unit is located between the pressurizing pump and the heating unit.
Further, the flow rate detection unit is located between the storage tank and the pressurizing pump.
Furthermore, an operation part is arranged on the shell and electrically connected with the control unit.
Furthermore, the heating type oral cavity cleaning device also comprises one or more temperature limiters, wherein the temperature limiters are electrically connected with the heating unit and are connected with the heating unit in series.
Furthermore, the heating unit comprises a heating pipe, and the heating pipe comprises a quartz tube and an electrothermal film covered on the outer surface of the quartz tube.
Furthermore, the heating unit also comprises a protective shell, and the quartz tube and the electrothermal film are both positioned in the protective shell.
As described above, the heating type oral cavity cleaning device according to the present invention has the following advantageous effects:
when the oral cavity cleaning device is used, cleaning liquid flows out of the storage tank, the cleaning liquid is conveyed to the cleaning head after being pressurized by the pressurizing pump and is sprayed out of the cleaning head to clean the oral cavity, and in the process, the control unit controls the heating unit to heat the cleaning liquid so as to avoid the condition that the temperature of the sprayed cleaning liquid is too low; the flow detection unit feeds a detected flow value of the cleaning liquid entering the heating unit back to the control unit, the inlet temperature sensor feeds a detected temperature value of the cleaning liquid entering the heating unit back to the control unit, the control unit controls the working state of the heating unit according to the obtained flow value and the obtained temperature value, and if the flow value is zero or lower than a set value, the heating unit is controlled to stop heating, so that the heating element is prevented from being damaged due to dry burning, and the heating type oral cavity cleaning device is ensured to be longer in service life; if the flow value reaches the set value, the control unit controls the heating unit to heat with reasonable power according to the acquired flow value and temperature value and the set target temperature value to be reached, so that the cleaning liquid flowing through the heating unit can be accurately heated to the set temperature, the temperature is prevented from being too low, too high and the like, and the waste of more energy sources is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a heating unit in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a heating type oral cavity cleaning device according to an embodiment of the present invention.
Fig. 3 is a schematic sectional view of a heating type oral cavity cleaning device according to an embodiment of the present invention.
Description of the element reference numerals
1 storage tank 642 outflow channel
2 casing 65 water inlet joint sealing ring
21 operation part 66 water outlet joint sealing ring
3 first heating pipe sealing ring of pressure pump 67
4 connecting pipe 68 second heating pipe sealing ring
5 cleaning head 7 control Unit
6 heating unit 81 flow detection unit
61 heating pipe 82 temperature detecting unit
62 protective housing 821 inlet temperature sensor
Outlet temperature sensor of 63 water inlet joint 822
631 water inlet limiting groove 83 temperature limiter
632 water inlet flow passage 831 temperature fuse
64 water outlet joint 832 resettable thermostat
641 water outlet limiting groove
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the modifications can be changed or adjusted without substantial technical changes and modifications.
As shown in fig. 1 to 3, the present embodiment provides a heating type oral cavity cleaning device, which includes a storage tank 1 for storing a cleaning solution, a housing 2, a pressure pump 3 installed in the housing 2 and communicating with the storage tank 1, a cleaning head 5 communicating with the pressure pump 3 through a connection pipe 4, a heating unit 6 for heating the cleaning solution, and a control unit 7 electrically connected to the heating unit 6, and further includes a flow rate detecting unit 81 and a temperature detecting unit 82, wherein the flow rate detecting unit 81 can detect a flow rate of the cleaning solution entering the heating unit 6, and the flow rate detecting unit 81 is electrically connected to the control unit 7; the temperature detection unit 82 includes an inlet temperature sensor 821 installed at an inlet of the heating unit 6, and the inlet temperature sensor 821 is electrically connected to the control unit 7. When the oral cavity cleaning device is used, cleaning liquid flows out of the storage tank 1, the cleaning liquid is conveyed to the cleaning head 5 after being pressurized by the pressurizing pump 3 and is sprayed out of the cleaning head 5 to clean the oral cavity, and in the process, the control unit 7 controls the heating unit 6 to heat the cleaning liquid so as to avoid the too low temperature of the sprayed cleaning liquid; the flow detection unit 81 feeds back the detected flow value of the cleaning liquid entering the heating unit 6 to the control unit 7, the inlet temperature sensor 821 feeds back the detected temperature value of the cleaning liquid entering the heating unit 6 to the control unit 7, the control unit 7 controls the working state of the heating unit 6 according to the obtained flow value and temperature value, and if the flow value is zero or lower than a set value, the heating unit 6 is controlled to stop heating, so that the heating element is prevented from being damaged due to dry burning, and the heating type oral cavity cleaning device is ensured to have longer service life; if the flow value reaches the set value, the control unit 7 controls the heating unit 6 to heat with reasonable power according to the acquired flow value and temperature value and the set target temperature value to be reached, so that the cleaning liquid flowing through the heating unit 6 can be accurately heated to the set temperature, the temperature is prevented from being too low, too high and the like, and more energy waste is avoided.
In this embodiment, the control unit 7 may be according to the formula: p is W × Q (TS-T1)/T, where W is the specific heat capacity of water, i.e., 4200J/kg × Q, Q is the flow rate value fed back by flow rate detection unit 81, TS is the set target temperature value, T1 is the intake water temperature value fed back by inlet temperature sensor 821, and T is the heating time, and heating electric power P of heating unit 6 is calculated. The heating type oral cavity cleaning device in the embodiment can automatically adjust the temperature of water flow.
As shown in fig. 1, in the present embodiment, the temperature detecting unit 82 further includes an outlet temperature sensor 822, the outlet temperature sensor 822 is installed at an outlet of the heating unit 6, and the outlet temperature sensor 822 is electrically connected to the control unit 7. The outlet temperature sensor 822 is configured to detect a temperature of the cleaning liquid flowing out from the outlet of the heating unit 6, and feed the detected temperature value back to the control unit 7, and the control unit 7 adjusts the operating state of the heating unit 6 according to the temperature of the outlet of the heating unit 6, so as to ensure that the heating unit 6 can accurately heat the cleaning liquid flowing through to a set temperature.
As shown in fig. 2 and 3, the inlet and the outlet of the heating unit 6 in this embodiment are respectively communicated with the pressurizing pump 3 and the connection pipe 4. Thus, the cleaning liquid is pressurized by the pressurizing pump 3, flows through the heating unit 6, is heated by the heating unit 6, flows to the cleaning head 5 through the connecting pipe 4, and is finally ejected through the cleaning head 5. By adopting the mode, a large amount of calcium and the like precipitated in the heated cleaning liquid can be effectively prevented from precipitating in the pressure pump 3, so that the service performance and the service life of the pressure pump 3 are influenced, and the service lives of the pressure pump 3 and the oral cavity cleaning device are further ensured to be longer.
As shown in fig. 2, the flow rate detecting unit 81 is provided between the pressurizing pump 3 and the heating unit 6 in this embodiment to accurately detect the flow rate of the cleaning liquid flowing into the heating unit 6 in time. In addition, the flow rate detecting unit 81 may also be located between the reservoir tank 1 and the pressurizing pump 3 in other embodiments to acquire the flow rate of the cleaning liquid flowing into the heating unit 6 by detecting the flow rate of the cleaning liquid flowing into the pressurizing pump 3.
As shown in fig. 2, in the present embodiment, the housing 2 is provided with an operation portion 21, and the operation portion 21 is electrically connected to the control unit 7. The user performs a corresponding operation on the operation unit 21 to send a corresponding control command to the control unit 7, and the control unit 7 controls the operating states of the heating unit 6 and the pressure pump 3. The pressurizing pump 3 is also electrically connected to the control unit 7 in this embodiment. Specifically, the user can set the flushing mode and set the water temperature by operating the operation unit 21 accordingly.
As shown in fig. 1, the heating type oral cavity cleaning device in this embodiment further includes one or more temperature limiters 83, the temperature limiter 83 is electrically connected to the heating unit 6, and the temperature limiter 83 is connected in series with the heating unit 6. When the temperature of the heating unit 6 reaches the set value, the temperature limiter 83 is turned off, so that the heating unit 6 is powered off to prevent the heating unit 6 from continuing to heat, which causes the temperatures of the heating unit 6 and the cleaning solution to be too high.
As shown in fig. 1, the heating unit 6 of the present embodiment includes a heating tube 61, and the heating tube 61 includes a quartz tube and an electric heating film covering the outer surface of the quartz tube. The two ends of the heating pipe 61 are respectively communicated with the pressure pump 3 and the connecting pipe 4, and the electric heating film is electrically connected with the control unit 7. When the cleaning fluid flows through the hollow quartz tube, the electric heating film heats the cleaning fluid. Meanwhile, as shown in fig. 1, the heating unit 6 in this embodiment further includes a protective casing 62, the quartz tube and the electric heating film are both located in the protective casing 62, so as to protect the quartz tube and the electric heating film by using the protective casing 62, thereby preventing the quartz tube and the electric heating film from being directly exposed to the external environment, and being easily damaged or even leaking electricity. The temperature limiter 83 is also mounted in the protective housing 62 in this embodiment. In this embodiment, the temperature of the heated cleaning solution is controlled to be 35 to 45 ℃.
As shown in fig. 1, the heating unit 6 in this embodiment further includes a water inlet joint 63 and a water outlet joint 64 respectively installed at two ends of the protective housing 62, a water inlet joint sealing ring 65 is further disposed between the water inlet joint 63 and the protective housing 62, and a water outlet joint sealing ring 66 is further disposed between the water outlet joint 64 and the protective housing 62, so as to enhance the sealing performance at two locations. The heating pipe 61 is located between the water inlet joint 63 and the water outlet joint 64, and is clamped by the water inlet joint 63 and the water outlet joint 64. And one end of the heating pipe 61 is inserted into the water inlet limiting groove 631 of the water inlet joint 63, and the other end of the heating pipe 61 is inserted into the water outlet limiting groove 641 of the water outlet joint 64. And a first heating pipe sealing ring 67 is further arranged between the heating pipe 61 and the side wall of the water inlet limiting groove 631, and a second heating pipe sealing ring 68 is further arranged between the heating pipe 61 and the side wall of the water outlet limiting groove 641. The bottom of the water inlet limiting groove 631 is provided with a water inlet channel 632, the bottom of the water outlet limiting groove 641 is provided with a water outlet channel 642, and two ends of the heating pipe 61 are respectively communicated with the water inlet channel 632 and the water outlet channel 642. Meanwhile, in the present embodiment, the inlet temperature sensor 821 is installed on the water inlet joint 63, and the sensing head of the inlet temperature sensor 821 is located in the water inlet flow channel 632; the outlet temperature sensor 822 is installed on the water outlet connector 64, and a sensing head of the outlet temperature sensor 822 is located in the water outlet channel 642.
As shown in fig. 1, the temperature limiter 83 in this embodiment includes two temperature fuses 831 and a resettable temperature controller 832. The temperature fuse 831 and the resettable temperature controller 832 are connected in series with the heating tube 61, and the temperature fuse 831 is at the live wire end of the heating tube 61, and the resettable temperature controller 832 is at the neutral wire end of the heating tube 61. The two are not at the same temperature, and the temperature limit of the temperature fuse 831 is higher than that of the resettable temperature controller 832. When the resettable thermostat 832 is turned off, a reset operation may be performed and may be used again to reduce maintenance costs. In the present embodiment, the reservoir 1, the pressure pump 3, the casing 2, the flow rate detection means 81, and the temperature detection means 82 constitute a main unit of the heating type oral cavity washing apparatus. The control unit 7 is located inside the housing 2.
When the flow detection unit 81 detects that no water flows through the heating pipe 61 or the water flow is smaller than a set value, the set value is preferably 50ml/min, and the control unit 7 controls the heating unit 6 to stop heating, so as to prevent dry burning, avoid wasting energy and affecting the safety performance of the product. Meanwhile, the flow rate detecting unit 81 more accurately detects the amount of water flowing through the heating unit 6. And the control unit 7 can more directly and more accurately calculate the energy required by heating according to the fed-back water flow and temperature, and further adjust the power of the heating unit 6 so as to accurately heat the water to the set temperature.
To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A heating type oral cavity cleaning device comprises a storage tank (1) for storing cleaning liquid, a shell (2), a pressure pump (3) which is arranged in the shell (2) and communicated with the storage tank (1), a cleaning head (5) which is communicated with the pressure pump (3) through a connecting pipe (4), a heating unit (6) for heating the cleaning liquid and a control unit (7) which is electrically connected with the heating unit (6), and is characterized by further comprising a flow detection unit (81) and a temperature detection unit (82), wherein the flow detection unit (81) can detect the flow of the cleaning liquid entering the heating unit (6), and the flow detection unit (81) is electrically connected with the control unit (7); the temperature detection unit (82) comprises an inlet temperature sensor (821) installed at an inlet of the heating unit (6), and the inlet temperature sensor (821) is electrically connected with the control unit (7).
2. The heated oral cavity washing device according to claim 1, characterized in that the temperature detection unit (82) further comprises an outlet temperature sensor (822), the outlet temperature sensor (822) is mounted at the outlet of the heating unit (6), and the outlet temperature sensor (822) is electrically connected to the control unit (7).
3. The heated oral cavity washing device according to claim 1, characterized in that the inlet and outlet of the heating unit (6) are in communication with a pressure pump (3) and a connecting pipe (4), respectively.
4. The heated oral cavity rinsing device according to claim 3, wherein the flow detecting unit (81) is located between the pressurizing pump (3) and the heating unit (6).
5. The heated oral cavity rinsing device according to claim 1, wherein the flow detecting unit (81) is located between the reservoir (1) and the pressurizing pump (3).
6. The heated oral cavity rinsing device according to claim 1, wherein an operating part (21) is provided on the housing (2), the operating part (21) being electrically connected to a control unit (7).
7. The heated oral cavity rinsing device according to claim 1 further comprising one or more temperature limiters (83), said temperature limiter (83) being electrically connected to the heating unit (6) and said temperature limiter (83) being connected in series with the heating unit (6).
8. The heated oral cavity rinsing device according to claim 1 wherein the heating unit (6) comprises a heating tube (61), and the heating tube (61) comprises a quartz tube and an electrothermal film covering the outer surface of the quartz tube.
9. The heated oral cavity cleaning device according to claim 8, wherein the heating unit (6) further comprises a protective housing (62), the quartz tube and the electrothermal film being located in the protective housing (62).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120302151.8U CN214679062U (en) | 2021-02-02 | 2021-02-02 | Heating type oral cavity cleaning device |
| PCT/CN2022/074627 WO2022166812A1 (en) | 2021-02-02 | 2022-01-28 | Heating type oral cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120302151.8U CN214679062U (en) | 2021-02-02 | 2021-02-02 | Heating type oral cavity cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214679062U true CN214679062U (en) | 2021-11-12 |
Family
ID=78566224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120302151.8U Active CN214679062U (en) | 2021-02-02 | 2021-02-02 | Heating type oral cavity cleaning device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN214679062U (en) |
| WO (1) | WO2022166812A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166812A1 (en) * | 2021-02-02 | 2022-08-11 | 上海飞象健康科技有限公司 | Heating type oral cleaning device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3555837B2 (en) * | 1998-04-23 | 2004-08-18 | 株式会社長田中央研究所 | Dental syringe |
| US7267547B2 (en) * | 2002-08-16 | 2007-09-11 | Kaltenbach & Voigt Gmbh & Co. Kg | Device for regulated heating of media in a dental handpiece |
| ITBO20110639A1 (en) * | 2011-11-08 | 2013-05-09 | Castellini Spa | SYRINGE FOR DENTAL USE |
| US20160278877A1 (en) * | 2015-03-25 | 2016-09-29 | Alvin M. Pepito | Temperature-controlled fluid delivery system |
| CN105496586B (en) * | 2015-12-30 | 2017-12-12 | 北华大学 | One kind removes teeth stains system using enzyme engineering |
| CN112022400A (en) * | 2020-09-22 | 2020-12-04 | 上海飞象健康科技有限公司 | Constant-temperature instant heating type tooth flushing device and control method thereof |
| CN214679062U (en) * | 2021-02-02 | 2021-11-12 | 上海飞象健康科技有限公司 | Heating type oral cavity cleaning device |
-
2021
- 2021-02-02 CN CN202120302151.8U patent/CN214679062U/en active Active
-
2022
- 2022-01-28 WO PCT/CN2022/074627 patent/WO2022166812A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166812A1 (en) * | 2021-02-02 | 2022-08-11 | 上海飞象健康科技有限公司 | Heating type oral cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022166812A1 (en) | 2022-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204555285U (en) | A kind of hybrid Thermostatic water heaters for sanitary equipment | |
| CN214679062U (en) | Heating type oral cavity cleaning device | |
| CN201983421U (en) | Water heater with water return function | |
| CN201407797Y (en) | Instantaneous constant temperature electric water heater | |
| CN106136923A (en) | Water boiling, dry combustion method detection method and realize the water fountain of the method in water fountain | |
| CN112022400A (en) | Constant-temperature instant heating type tooth flushing device and control method thereof | |
| CN110742501A (en) | Water purifying drinking machine and dry burning preventing method thereof | |
| CN214679060U (en) | Heating type oral cavity cleaning device with dry burning prevention function | |
| CN102068206A (en) | Method for heating water by utilizing heating pipeline and tea making machine employing method | |
| CN212183760U (en) | Electric heater | |
| CN214679064U (en) | Oral cavity cleaning device with heating function | |
| CN206959346U (en) | A kind of gas heater hot water circulating device | |
| CN213019851U (en) | Intelligent steam heating equipment | |
| JPH02263040A (en) | Electric water heater | |
| CN216667970U (en) | Water heating blanket with filter equipment protection water pump | |
| CN213525600U (en) | Constant temperature type tooth rinsing device | |
| CN218779198U (en) | Cleaning equipment | |
| CN213747291U (en) | Compatible water heater of fast heat water storage | |
| CN211093410U (en) | Water purifying drinking machine | |
| CN210144503U (en) | Instant heating type water dispenser | |
| CN210253276U (en) | Energy-saving and emission-reducing steam cleaning machine | |
| CN213129154U (en) | Heating body for water dispenser | |
| CN211481520U (en) | Heating tube capable of preventing dry heating | |
| CN212816030U (en) | Electric water heater controlled by electric heating towel rack | |
| CN214048516U (en) | Heating assembly and heating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |