Heating device and water vapor massage foot bath device

Abstract

The utility model discloses a heating device and a water vapor massage foot bath device, and belongs to the field of health care, the existing foot bath device cannot effectively heat flowing water vapor, the heating device is configured to comprise an inner shell, an outer shell and an electric heating ring, the inner shell is provided with a fluid channel, the outer shell surrounds the periphery of the inner shell, and the electric heating ring is arranged on the outer shell. The electric heating ring is located between the inner shell and the outer shell, and a wiring end is led out from the outer shell. When water vapor flows through the fluid channel, power is supplied to the electric heating ring, the electric heating ring generates heat and transmits the heat to the inner shell, and the inner shell heats the flowing water vapor to a proper temperature. The structure is compact, and the heating efficiency is high. The inner shell is configured to comprise a flat part in the middle and connecting pipes at the two ends of the flat part, and the interior of the flat part is a fluid channel connected with the connecting pipes. The contact area of the electric heating ring and the inner shell is increased, and the heat transfer effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of health care, specifically to a heating device and a water vapor massage foot bath. Background Technology

[0002] Existing foot baths provide a static sauna experience by diffusing warm water vapor within a foot bath chamber and enveloping the user's feet. They also utilize pressurized jets of warm water vapor to create fluid jets that impact the feet, generating a massage stimulation. The fluid jets are heated to a suitable temperature during transport, avoiding excessive heat or cold; therefore, effective heating of the flowing water vapor is a requirement for this type of foot bath. Utility Model Content

[0003] The purpose of this invention is to provide a heating device and a steam massage foot bath for heating flowing steam to a suitable temperature, thereby enhancing the user's foot bath experience.

[0004] To achieve the above objectives, the heating device of this utility model includes: an inner shell, an outer shell, and an electric heating coil. The inner shell has a fluid channel, the outer shell surrounds the outer periphery of the inner shell, and the electric heating coil is located between the inner shell and the outer shell and has a terminal leaded out from the outer shell.

[0005] Accordingly, when water vapor flows through the fluid channel, it supplies power to the electric heating coil, causing the coil to generate heat and transfer it to the inner shell. The inner shell then heats the flowing water vapor to a suitable temperature. It has a compact structure and high heating efficiency.

[0006] Preferably, the inner shell is a good conductor of heat, and an electric heating coil is wound around the outer wall of the inner shell to increase heat transfer efficiency.

[0007] Preferably, the inner shell includes a flat section in the middle and connecting pipes at both ends of the flat section, with a fluid channel inside the flat section connected to the connecting pipes. This increases the contact area between the electric heating coil and the inner shell, thereby improving the heat transfer effect.

[0008] Preferably, the fluid channel is a slit defined by the solid portion, and the extension direction of the slit is consistent with the extension direction of the flat portion. Accordingly, the flow diameter of the fluid channel is reduced and the surface area of ​​the fluid channel is increased, so that the water vapor flowing through the fluid channel can contact the surface of the fluid channel as much as possible and be fully heated. The solid portion can store more heat, so it can provide enough heat to heat the water vapor when it flows through, and prevent it from being cooled down rapidly.

[0009] This utility model of a water vapor massage foot bath includes:

[0010] Foot bath cavity;

[0011] The massage assembly includes multiple massage nozzles protruding from the foot bath cavity, the massage nozzles being configured with spray holes;

[0012] Heating and atomizing components for heating atomized water;

[0013] A water vapor pressurization component is used to pressurize the water vapor generated by the heating atomizing component and deliver it to the massage nozzle. It includes a steam pump, a delivery pipe, and a first heating element disposed in the path of the delivery pipe. The first heating element is the heating element of this invention, and its inner shell is connected in series in the path of the delivery pipe. Using the heating element of this invention, the foot bath heats the flowing water vapor to a suitable temperature, enhancing the user's foot bath experience.

[0014] Preferably, the water vapor pressurization assembly includes a first one-way valve, a control valve, and a storage tank. The first one-way valve and the control valve are sequentially connected in the delivery pipeline between the steam pump and the first heating element. The storage tank is connected in the delivery pipeline between the first one-way valve and the control valve. The first one-way valve controls the flow of water vapor from the steam pump to the control valve. Accordingly, the control valve can be closed first to fill the storage tank with water vapor. Once the pressure inside the storage tank reaches the required pressure, the control valve can be opened to allow the high-pressure water vapor to flow to the massage nozzle, thus avoiding insufficient water vapor pressure ejected from the spray hole.

[0015] Preferably, the water vapor pressurization assembly further includes a fan and a second one-way valve. The fan and the second one-way valve are connected in the delivery pipe path between the control valve and the first heating device. The second one-way valve controls the airflow generated by the fan to flow towards the first heating device. Accordingly, closing the control valve and turning on the fan generates airflow to dry the water vapor path downstream of the fan. Simultaneously, the first heating device is activated to heat the airflow, resulting in higher drying efficiency and better effect.

[0016] Preferably, the heating atomization assembly includes a heating atomization water tank, a second heating element, and an ultrasonic atomizer. The second heating element and the ultrasonic atomizer are disposed at the bottom of the heating atomization water tank. An intake port is provided on the side wall of the heating atomization water tank, and the intake port is connected to the steam pump of the water vapor pressurization assembly. After water is added to the heating atomization water tank, the second heating element and the ultrasonic atomizer are submerged in water to atomize and heat the water into water vapor.

[0017] Preferably, a cover is provided above the heating and atomizing water tank, forming a diffusion cavity above the heating and atomizing water tank between the cover and the water tank. The diffusion cavity provides space for heating and atomization, ensuring the efficiency of heating and atomization.

[0018] Preferably, the cover is provided with a water vapor channel connecting the foot bath chamber and the diffusion chamber, allowing water vapor to circulate between the foot bath chamber and the diffusion chamber.

[0019] This invention configures a heating device comprising an inner shell, an outer shell, and an electric heating coil. The inner shell has a fluid channel, and the outer shell surrounds the inner shell. The electric heating coil is located between the inner shell and the outer shell, with a terminal leading out from the outer shell. When water vapor flows through the fluid channel, it supplies power to the electric heating coil, causing the coil to generate heat and transfer it to the inner shell. The inner shell then heats the flowing water vapor to a suitable temperature. It has a compact structure and high heating efficiency.

[0020] This invention configures the inner shell as including a flat section in the middle and connecting pipes at both ends of the flat section, with the interior of the flat section containing fluid channels connected to the connecting pipes. This increases the contact area between the electric heating coil and the inner shell, thereby improving heat transfer efficiency.

[0021] This invention defines a fluid channel as a slit defined by a solid portion, with the slit extending in the same direction as the flat portion. This reduces the flow diameter of the fluid channel and increases its surface area, allowing the water vapor flowing through it to contact the channel surface as much as possible and be sufficiently heated. The solid portion can store more heat, thus providing enough heat to heat the water vapor as it flows through, preventing it from cooling down rapidly. Attached Figure Description

[0022] Figure 1 This is an exploded view of the foot bath device of this utility model;

[0023] Figure 2 This is a schematic diagram of the water vapor pressurization component of this utility model;

[0024] Figure 3 for Figure 2 Another schematic diagram of the water vapor pressurization component shown;

[0025] Figure 4 This is an exploded view of the structure of the heating device of this utility model;

[0026] Figure 5 This is a cross-sectional schematic diagram of the inner shell of the heating device of this utility model;

[0027] Figure 6 This is a cross-sectional schematic diagram of the heating device of this utility model;

[0028] Figure 7 This is a schematic diagram showing the positional relationship between the massage nozzle and the water vapor dispersion channel of this utility model;

[0029] Figure 8 This is a cross-sectional structural diagram of the water vapor dispersion plate of this utility model;

[0030] Figure 9 This is an exploded view of the structure of the massage nozzle of this utility model;

[0031] Figure 10This is a cross-sectional view of the headstock of this utility model;

[0032] Figure 11 This is a schematic diagram illustrating the assembly relationship between the tubular shaft and the bushing of this utility model; the reference numerals in the diagram are explained as follows:

[0033] 100 massage components:

[0034] 120 installation disk

[0035] 130 Massage nozzle, 131 Head base, 1311 Spray hole, 1312 Water vapor chamber, 1313 Key shaft section, 132 Tubular shaft, 1321 Lower shaft section, 1322 Rotary retaining ring, 1323 Upper shaft section, 1324 Sealing ring;

[0036] 140 Water vapor dispersion plate, 141 First dispersion channel, 142 Second dispersion channel, 143 Inlet interface, 144 Mounting interface, 145 Shaft sleeve.

[0037] 150 driven gear, 151 square hole,

[0038] 200 Heating atomizing component: 210 heating atomizing water tank, 211 suction port, 220 second heating device, 230 ultrasonic atomizer, 240 cover, 241 water vapor channel;

[0039] 300 Water and steam pressurization assembly: 310 steam pump, 320 delivery pipe, 330 first check valve, 340 storage tank, 350 control valve, 360 first heating element, 361 inner shell, 3611 flat section, 3612 connecting pipe, 3613 fluid channel, 3614 solid section, 362 outer shell, 363 electric heating coil, 364 first temperature sensor, 365 second temperature sensor, 366 terminal block, 370 second check valve, 380 fan, 390 inlet pipe;

[0040] 400 controller, 401 power cord, 402 wire;

[0041] 500 Upper housing: 501 Inlet, 502 Insertion port, 503 Control panel;

[0042] 610 positioning disc, 620 dividing disc;

[0043] 700 lower housing;

[0044] 800 water bottles. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0046] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion, such as a method or product that includes a series of technical features, not limited to those technical features explicitly listed, but also including other technical features that may be included in the method or product but not explicitly listed.

[0047] In the description of this utility model, it should be understood that the technical features defined by terms such as "first" and "second" which have a sequential concept are only for the purpose of clearly describing the defined technical features and making the defined technical features clearly distinguishable from other technical features, and do not represent that they are named in this way in actual implementation. Therefore, they should not be construed as limitations on this utility model.

[0048] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0049] Figure 1 A foot bath device is shown, comprising: an upper housing 500, a lower housing 700, a foot bath cavity, a massage component 100, a heating and atomizing component 200, a water vapor pressurization component 300, and a controller 400.

[0050] The foot bath chamber is defined between the upper housing 500 and the massage component 100. The upper housing 500 has an opening 501 for the feet to enter and exit the foot bath chamber. The upper housing 500 also has an insertion port 502 for inserting a water bottle 800 to add water to the heated atomizing water tank 210. The upper housing 500 is also equipped with a control panel 503 for displaying the working status of the foot bath and controlling the foot bath.

[0051] like Figure 1 As shown, the massage assembly 100 includes a plurality of massage nozzles 130 configured with jet holes 1311. The massage nozzles 130 are distributed on the upper side of the mounting plate 120 and protrude from the foot bath cavity. Each massage nozzle is connected to a water vapor dispersion channel on the lower side of the mounting plate 120 via a tubular shaft.

[0052] The installation disk 120 has a lower side with Figure 7-8The illustrated water vapor dispersion plate 140 is a plate-shaped component with water vapor dispersion channels distributed on it. These channels disperse the delivered water vapor to distribute it evenly to each massage nozzle. In the illustrated structure, grooves of appropriate shape are arranged on the water vapor dispersion plate, and then a cover plate is used to cover the grooves to form the water vapor dispersion channels. In other embodiments, the grooves can be provided on the cover plate, and the cover plate can be assembled to the water vapor dispersion plate to form the water vapor dispersion channels. Figure 8 In the diagram, the water vapor dispersion plate 140 is cut by two planes perpendicular to the water vapor dispersion plate 140, passing through the first dispersion channel 141 and the input interface 143 respectively, thus clearly showing the position and structure of the input interface 143 and the mounting interface 144. Multiple mounting interfaces 144 are distributed along the first dispersion channel 141 and the second dispersion channel 142. Each mounting interface is fixed with... Figure 11 The bushing 145 shown is fixed to the mounting interface 144 by threads, which facilitates assembly and ensures a seal between the bushing and the mounting interface.

[0053] Water vapor is supplied to the water vapor dispersion channel through the input interface 143, and then distributed to each massage nozzle 130. Multiple massage nozzles 130 are arranged symmetrically in two rows to form two adjacent areas, each area designed to massage one foot, increasing comfort. The massage assembly 100 is positioned and mounted on the positioning plate 610.

[0054] like Figure 9 As shown, the massage nozzle 130 includes Figure 10 The headstock 131 shown and Figure 11 The tubular shaft 132 shown has a headstock 131 with a water vapor chamber 1312 and multiple spray holes 1311 for spraying water vapor outward from the water vapor chamber. The upper end of the tubular shaft 132 is sealed and inserted into the headstock 131 and communicates with the spray holes 1311 through the water vapor chamber 1312. The lower end of the tubular shaft 132 extends into the water vapor dispersion channel to receive water vapor from the channel. This allows each spray hole to spray water vapor with a consistent force. Furthermore, the upper end of the tubular shaft is sealed to the headstock, and the lower end is sealed to the water vapor dispersion plate. This sealing is achieved by fitting sealing rings at corresponding parts of the tubular shaft, ensuring that the massage nozzle rotates flexibly without water vapor leakage. The headstock 131 has a key shaft section 1313, which is square-shaped. The driven gear 150 is fitted onto the key shaft section 1313 through a square hole 151. This ensures that the driven gear drives the massage nozzle.

[0055] A mounting space is maintained between the mounting plate 120 and the water vapor dispersion plate 140, and the mounting space is isolated from the water vapor dispersion channel to prevent water vapor in the water vapor dispersion channel from entering the mounting space and adversely affecting the structures within the mounting space, such as gears. Multiple massage nozzles 130 are rotatably distributed on the upper side of the mounting plate 120 and each is connected to a water vapor dispersion channel. Therefore, the mounting plate serves as the assembly base for the massage nozzles and bears the pressure from the massage nozzles and the feet during a foot bath.

[0056] Specifically, the tubular shaft 132 is fitted with the bushing 145 in a sealed and rotating assembly. For example... Figure 11 As shown, a tubular shaft 132 passes through a bushing 145 and extends downwards to form a lower shaft section 1321. At least one rotating retaining ring 1322 is fitted onto the lower shaft section, acting as a sealing ring. The rotating retaining ring both constrains the tubular shaft to the bushing and provides a seal to prevent moisture leakage from the rotational gap between the tubular shaft and the bushing. Specifically, since the rotating retaining ring is fitted onto the lower shaft section rather than being pressed between the inner walls of the tubular shaft and the bushing, the resistance generated by the rotating retaining ring is smaller when the tubular shaft rotates relative to the bushing, thus ensuring the flexibility of the tubular shaft's rotation. Multiple rotating retaining rings can increase the seal life. The tubular shaft 132 also extends upwards to form an upper shaft section 1323, which is fitted with at least one sealing ring 1324. The sealing ring 1324 is pressed between the upper shaft section 1323 and the head seat 131, thereby ensuring a seal between the tubular shaft and the head seat.

[0057] Multiple driven gears 150 are located within the mounting space and are individually configured with the massage head 130 to rotate the massage head. Specifically, as shown... Figure 9 As shown, the driven gear 150 is driven and assembled with the upper shaft section 1323 and the head base 131. The structure shown in the figure has keyed shaft sections 1313 on both the upper shaft section 1323 and the head base 131. The driven gear 150 has a square hole 151, which fits onto the keyed shaft sections 1313 of the upper shaft section 1323 and the head base 131 to rotate the entire massage head, preventing relative rotation between the tubular shaft and the head. The driven gear is driven by the driving gear, which is driven by a motor.

[0058] The heating atomizing assembly 200 is used to heat and atomize water. It includes a heating atomizing water tank 210, a second heating element 220, and an ultrasonic atomizer 230. The second heating element 220 and the ultrasonic atomizer 230 are disposed at the bottom of the heating atomizing water tank 210. After water is added to the heating atomizing water tank, the second heating element and the ultrasonic atomizer are submerged in water to atomize and heat the water into water vapor. A cover 240 is provided above the heating atomizing water tank 210, and the cover 240 and the heating atomizing water tank 210 define a diffusion cavity. Accordingly, the water stored in the heating atomizing water tank can be heated and atomized. The diffusion cavity provides space for heating and atomization, ensuring the efficiency of heating and atomization. The cover defines the diffusion cavity. The cover 240 protrudes from the foot bath chamber. The heating atomizing water tank 210 is located below the partition plate 620. The partition plate 620 and the positioning plate 610 are provided with openings corresponding to the heating atomizing water tank. The openings connect the heating atomizing water tank and the diffusion chamber, promoting efficient heating atomization. The side wall of the diffusion chamber has an intake port 211 and a water vapor channel 241. The intake port 211 is preferably located on the side wall of the heating atomizing water tank 210, so as not to be submerged in water. The intake port 211 is connected to the steam pump 310 of the water vapor pressurization assembly 300. The water vapor channel 241 is provided in the cover 240. At any stage of operation, when the pressure in the diffusion chamber is less than the pressure in the foot bath chamber, the water vapor in the foot bath chamber flows back into the diffusion chamber through the water vapor channel. When the pressure in the foot bath chamber is less than the pressure in the diffusion chamber, the water vapor in the diffusion chamber will escape into the foot bath chamber through the water vapor channel.

[0059] The water vapor pressurization component 300 is used to pressurize the water vapor generated by the heating atomizing component 200 and deliver it to the massage nozzle. For example... Figure 2 , Figure 3 As shown, the water vapor pressurization assembly 300 includes a steam pump 310, a delivery pipe 320, and a first check valve 330, a storage tank 340, a control valve 350, a first heating device 360, a second check valve 370, and a fan 380, all configured in the delivery pipe path.

[0060] The storage tank 340 is connected in the delivery pipeline between the first one-way valve 330 and the control valve 350. The first one-way valve 330 controls the flow of water vapor from the steam pump to the control valve 350, that is, the first one-way valve 330 prevents water vapor from flowing to the steam pump. Accordingly, the control valve 350 can be closed first to fill the storage tank 340 with water vapor. After the air pressure in the storage tank 340 reaches the required pressure, the control valve 350 can be opened to allow the water vapor to flow to the massage nozzle 130 at a certain pressure, thus avoiding insufficient water vapor pressure sprayed from the spray hole.

[0061] When the water vapor produced by the heating atomizing component 200 is insufficient or / and the power of the pressurizing pump is inadequate, the water vapor pressurizing component 300 cannot continuously spray a high-speed water vapor stream. While typical pressurizing pumps, such as airbag pumps, can continuously inflate, they cannot achieve high-pressure air delivery. Forcing the pressurizing pump to deliver high-pressure air would result in a severe suction sensation above the foot bath cavity and increased pump noise. Therefore, using a storage tank to accumulate and store water vapor, and then intermittently releasing it, ensures that the water vapor pressurizing component 300 can continuously spray a high-speed water vapor stream with lower operating noise. Given the function of the storage tank, it is preferably made of an elastic material, making it function like an elastic bladder.

[0062] The first heating element 360 is used to heat the flowing fluid. The first heating element 360, as shown... Figure 6 The device includes an inner housing 361, an outer housing 362, and an electric heating coil 363. The inner housing (361) is connected in series in the path of the delivery pipe 320 through its fluid channel 3613. The outer housing 362 surrounds the inner housing 361 and shields the heat of the electric heating coil to prevent heat loss and improve heat utilization. The electric heating coil 363 is located between the inner housing 361 and the outer housing 362 and has a terminal 366 leading out from the outer housing (362). The electric heating coil 363 is connected to the controller 400 via a wire 402 connected to the terminal 366.

[0063] like Figure 4 As shown, the electric heating coil 363 is wound around the outer wall of the inner shell 361. The inner shell is a good conductor of heat, such as being made of aluminum alloy or copper. Therefore, the heat generated by the electric heating coil can be quickly conducted to the inner shell, which then heats the flowing water vapor.

[0064] like Figure 5-6 As shown, the inner shell 361 includes a flat portion 3611 in the middle and connecting pipes 3612 at both ends of the flat portion. The interior of the flat portion 3611 is a fluid channel connected to the connecting pipes. This increases the contact area between the electric heating coil and the inner shell, improving heat transfer. Furthermore, the fluid channel 3613 is a slit defined by the solid portion 3614, and the extension direction of the slit is consistent with the extension direction of the flat portion. This reduces the flow diameter of the fluid channel and increases its surface area, allowing the water vapor flowing through the fluid channel to contact the surface of the fluid channel as much as possible and be fully heated. The solid portion can store more heat, thus providing sufficient heat to heat the water vapor as it flows through, preventing it from cooling down rapidly.

[0065] An electric heating coil, also called an electric heating ring or heating coil, uses an electrothermal alloy wire as the heating material, with a thin metal tube wrapped around the wire. Depending on its working method, an electric heating coil can be a resistance heating coil, which uses the Joule effect of electric current to convert electrical energy into heat energy to heat an object. It can also be an induction heating coil, which uses the thermal effect generated by the induced current (eddy current) in a conductor placed in an alternating electromagnetic field to heat the conductor itself.

[0066] In order to control the temperature of water vapor, a first temperature sensor 364 is installed inside the first heating device 360, and a second temperature sensor 365 is installed at the outlet end of the first heating device 360; the controller 400 controls the first heating device to heat or stop heating based on the temperature signal collected by the first temperature sensor and / or the second temperature sensor, that is, to control the heating of the first heating device by supplying power to the electric heating coil, and to control the heating of the first heating device to stop heating by stopping the power supply to the electric heating coil.

[0067] Specifically, the first temperature sensor 364 is located between the outer shell 362 and the inner shell 361, and is used to collect the temperature of the electric heating coil, indirectly obtaining water vapor temperature data. The second temperature sensor 365 directly obtains the water vapor temperature data. Based on this, the water vapor temperature can be controlled within a suitable temperature range, enhancing the foot bath experience.

[0068] The controller (circuit control board) is fixed to the lower side of the partition plate 620 and shielded by the lower housing 700, and is isolated from the foot bath cavity by the positioning plate 610 and the partition plate 620. The controller is electrically connected to the control panel 503 and the electrical components of the foot bath, such as the air pump 310, the first one-way valve 330, the control valve 350, the first heating element 360, the electric heating coil 363, the first temperature sensor 364, the second temperature sensor 365, the second one-way valve 370, the fan 380, etc. The controller is connected to an external power source through the power cord 401 to supply power to the entire foot bath cavity.

[0069] The fan 380 and the second one-way valve 370 are connected in the delivery pipe path between the control valve 350 and the first heating device 360. The second one-way valve 370 controls the airflow generated by the fan 380 to flow towards the first heating device 360, preventing fluid from flowing towards the fan 380. This prevents water vapor from flowing towards the fan when delivering water vapor. Accordingly, closing the control valve 350 and turning on the fan 380 generates airflow to dry the water vapor path downstream of the fan 380. Simultaneously, the first heating device 360 ​​is activated to heat the airflow, resulting in higher drying efficiency and better effect.

[0070] The steam pump has an inlet pipe 390, which is connected to the suction port 211 of the heating atomizing component 200. One end of the delivery pipe 320 is connected to the outlet of the steam pump 310, and the other end is connected to the input interface of the water vapor dispersion channel. During foot bath, the steam pump 310 draws water vapor from the heating atomizing water tank 210 through the inlet pipe 390 and the suction port 211, and pressurizes the water vapor. The water vapor flows through the first one-way valve 330, the control valve 350, and the first heating device 360, and then enters the water vapor dispersion channel through the input interface, where it is distributed to each massage nozzle.

[0071] The positioning plate 610 and the partition plate 620 keep the foot bath cavity relatively sealed. Under the action of the water vapor pressurization component 300, water vapor circulates between the heating atomizing water tank 210, the water vapor pressurization component 300, the water vapor dispersion channel, the massage nozzle 130, the foot bath cavity, and the diffusion cavity.

[0072] The water vapor pressurization component 300 is fixed to the lower side of the partition plate 620 and is shielded by the lower housing 700, and is isolated from the foot bath cavity by the positioning plate 610 and the partition plate 620.

[0073] Based on the above structure, the massage components deliver warm water vapor to each massage nozzle through a water vapor dispersion channel. The warm water vapor is then sprayed from the massage nozzles to stimulate and massage the feet. The rotation of each massage nozzle is driven by a power and transmission mechanism, further enhancing the foot bath experience.

[0074] When the above-mentioned foot bath is in operation, the second heating device 220, ultrasonic atomizer 230 and water vapor pressurization component 300 are activated by operating the control panel 503. The water vapor is heated and sprayed out from the spray hole 1311 of the massage nozzle 130. When the feet are placed on the corresponding massage nozzle, they can get a stimulating massage from the water vapor spray.

Claims

1. A heating device, characterized by: include: The inner housing (361), the outer housing (362) and the electric heating coil (363) are provided. The inner housing (361) has a fluid channel. The outer housing (362) surrounds the outer periphery of the inner housing (361). The electric heating coil (363) is located between the inner housing (361) and the outer housing (362) and has a terminal (366) led out from the outer housing (362).

2. The heating device according to claim 1, characterized in that: The inner shell (361) is a good conductor of heat, and the electric heating coil (363) is wrapped around the outer wall of the inner shell (361).

3. The heating device according to claim 2, characterized in that: The inner shell (361) includes a flat section (3611) in the middle and pipes (3612) at both ends of the flat section. The interior of the flat section (3611) is a fluid channel connected to the pipes.

4. The heating device according to claim 3, characterized in that: fluid... The channel (3613) is a slit defined by the solid part (3614), and the extension direction of the slit is consistent with the extension direction of the flat part (3611).

5. A water-steam massage foot bath device, characterized by: include: Foot bath cavity; Massage assembly (100) includes a plurality of massage nozzles (130) protruding from the foot bath cavity, the massage nozzles being configured with spray holes (1311). Heating atomizing component (200) for heating atomized water; A water vapor pressurization assembly (300) is used to pressurize the water vapor generated by the heating atomizing assembly and deliver it to the massage nozzle. It includes a steam pump (310), a delivery pipe (320), and a first heating device (360) disposed in the path of the delivery pipe. The first heating device (360) is the heating device according to any one of claims 1-4, and an inner housing (361) is connected in series in the path of the delivery pipe (320).

6. The foot bath device according to claim 5, characterized in that: The water vapor pressurization assembly (300) includes a first check valve (330), a control valve (350), and a storage tank (340). The first check valve (330) and the control valve (350) are connected in sequence in the delivery pipeline between the steam pump (310) and the first heating device (360). The storage tank (340) is connected in the delivery pipeline between the first check valve (330) and the control valve (350). The first check valve (330) controls the flow of water vapor from the steam pump to the control valve (350).

7. The foot bath device according to claim 5 or 6, characterized in that: The water vapor pressurization assembly (300) also includes a fan (380) and a second check valve (370). The fan (380) and the second check valve (370) are connected in the delivery pipe path between the control valve (350) and the first heating device (360). The second check valve (370) controls the airflow generated by the fan (380) to flow to the first heating device (360).

8. The foot bath device according to claim 5, characterized in that: The heating atomizing assembly (200) includes a heating atomizing water tank (210), a second heating device (220), and an ultrasonic atomizer (230). The second heating device (220) and the ultrasonic atomizer (230) are disposed at the bottom of the heating atomizing water tank (210). The side wall of the heating atomizing water tank (210) is provided with an intake port (211), which is connected to the steam pump (310) of the water vapor pressurizing assembly (300).

9. The foot bath device according to claim 8, characterized in that: A cover (240) is provided above the heating atomizing water tank (210), and a diffusion cavity is formed between the cover (240) and the heating atomizing water tank (210) located above the heating atomizing water tank.

10. The foot bath device according to claim 9, characterized in that: The cover (240) is provided with a water vapor channel (241) connecting the foot bath cavity and the diffusion cavity.

Images