CN110721406A - Foot care device - Google Patents

Abstract

The present invention provides a foot health care device, which comprises: a lower shell (11), a middle shell (8), which is covered and arranged on the lower shell (11), and two foot pedals (5), which are arranged on the lower shell (11). On the middle shell, and a circuit board (14), which is located in the lower shell (11), a pulse signal generating circuit is arranged in the circuit board (14), and the pulse signal generating circuit includes an inverting circuit, The crystal oscillator circuit and the primary amplifier circuit are characterized in that: the two foot pedals (5) are electrically connected to the circuit board (14), and in the case of use, the user places his feet on the two pedals respectively. On the two foot pedals (5), the two foot pedals (5) form a circuit with the human body, and the pulse signal generating circuit generates high-frequency pulse current, thereby achieving the functions of promoting human blood circulation and improving immunity.

Description

Foot care device

technical field

The invention relates to the technical field of an apparatus (A61H39/06) for physiotherapy that heats and stimulates specific reflex points of the human body within the life limit of cells, in particular to a foot health care apparatus.

Background technique

With the improvement of people's living standards, household health care equipment has also developed rapidly, and there are many products that use electronic pulse waves to stimulate different parts of the human body to achieve health care functions.

Patent document CN201384686Y discloses that the utility model uses low-frequency electronic pulses to simulate the signals of traditional Chinese medicine theory and act on the soles of the human feet (or act on the human body through a guide pad—three groups of guide patches are set), and stimulate the acupuncture points of the human body to achieve and massage. A fairly effective vitality energy meter. The utility model has a considerable curative effect on recovering fatigue, promoting blood circulation, relieving neuralgia, relieving muscle soreness and peripheral nerve recovery. At the same time, the operation control part adopts infrared remote control mode, the massage intensity can be adjusted by the user, four working modes are optional, and the working mode adopts digital indication, which is clear to the user at a glance.

Patent document CN1071594A discloses that the present invention belongs to an instrument for treating diseases by acupoint moxibustion on the hands and feet of the human body. It consists of a power supply circuit, a pulse circuit, a power amplifier circuit, an output circuit, a temperature control circuit and a moxibustion bath (basin). It is characterized in that the output end of the music integrated block U1 is connected to the input end of the power amplifier assembly U2 through the potentiometer RW1, and the output end of the U2 is connected to the output head connected with the moxibustion bath through the step-up transformer B2; the electric heater is placed in the bath. The present invention uses a moxibustion bath as a medium to achieve contact with the acupoints of the hands and feet. It has automatic acupoint selection, automatic treatment, no skin stab wounds, no cross infection, no side effects, and is easy for patients to accept.

Patent document CN2649070Y discloses that the utility model is a new type of electromagnetic foot massage health care basin, which is characterized in that: it is composed of a health care basin, a heating circuit, a control circuit, a pulse generating circuit, a pulse output circuit, and a power supply circuit, and a heating mechanism, a control circuit, The pulse generating circuit, the pulse output circuit and the power circuit are fixed on the pelvic floor of the pedicure health care pelvis, and there are conductive rubber electrodes on the pelvic floor of the health care pelvis, and the conductive rubber electrodes are electrically connected with the pulse output circuit. The heating mechanism is composed of a ceramic heater and a circulating water pump. This foot health care basin has both traditional Chinese medicine health care functions, electro-acupuncture and iontophoresis functions, as well as temperature control, surfing, massage, drug iontophoresis and other functions. The drug penetration is stronger. It uses traditional Chinese medicine physiotherapy and pulsed electromagnetic acupuncture to achieve the purpose of regulating human body functions.

Patent document CN202437664U discloses that the utility model discloses an adjustable moxibustion box device, comprising a foot moxibustion box host, the foot moxibustion box host is divided into three layers, the upper layer is the host panel and the moxibustion panel, and the middle layer is the moxa column running plate , The bottom layer is a drive control circuit and a drive motor; the moxa column running plate is provided with a heat collecting cover and a moxa column clip, the drive control circuit is used to control the drive motor, and the drive motor is used to drive the moxa column The turntable moves up and down and rotates horizontally. The moxibustion box device of the utility model can make the heat burned by the moxibustion more concentrated and lasting, and the penetration force of the medicine is stronger; the moxibustion is heated evenly, and the heat and effect of the moxibustion can be adjusted.

Therefore, it is still the research and development direction of engineers and technicians in the field to design a health care device that is convenient for personal daily use and can effectively introduce electric heat energy from the foot of the human body into the body to heat and stimulate specific reflex points of the human body.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, one of the purposes of the invention is to provide a pulse wave foot health care device capable of generating high-frequency alternating electrical frequencies, so as to achieve the functions of promoting human blood circulation and improving immunity.

To this end, the present invention provides a foot health care device, comprising: a lower shell, a middle shell, which is connected to the lower shell, two foot pedals, which are arranged on the middle shell, and a circuit board, It is located in the lower shell, and the circuit board is provided with a pulse signal generating circuit, and the pulse signal generating circuit includes an inverting circuit, a crystal oscillator circuit, a primary amplifier circuit,

It is characterized in that: the pulse signal generating circuit outputs a 1MHz high-frequency pulse current, the two foot pedals are electrically connected to the circuit board, and in the case of use, the user places their feet on the two There are two foot pedals, the two pedals form a loop with the human body, and the pulse signal generating circuit generates the 1MHz high-frequency pulse current, which contacts with the human foot to generate heat energy and transmits it to various parts of the body, so as to promote Human blood circulation, improve immunity and so on.

According to other technical solutions created by the present invention, it may also include one or more technical features described herein. As long as the combination of such technical features is practicable, the new technical solutions formed thereby all belong to the creation of the present invention.

Compared with the prior art, the beneficial effects created by the present invention are:

In the process of using the foot health care device of the present invention, the pulse signal generating circuit can generate high-frequency alternating electric frequency pulse waves, and generate a magnetic frequency field that resonates with human cells, so as to promote human blood circulation, adjust blood pressure, and decompose thrombus and blood lipids. , Improve immunity, delay aging and so on.

Description of drawings

The features, advantages and characteristics of the present invention will be better understood from the following description of the detailed description with reference to the accompanying drawings, in which:

Fig. 1: the schematic diagram of the pulse signal generating circuit of a preferred embodiment of the foot health care instrument of the present invention;

Fig. 2: the schematic diagram of the pulse signal amplifying output circuit of a preferred embodiment of the foot health care instrument of the present invention;

Fig. 3: the schematic diagram of the power supply circuit of a preferred embodiment of the foot health care apparatus of the present invention;

Fig. 4: the schematic diagram of the fan and the laser control circuit of a preferred embodiment of the foot health care apparatus of the present invention;

Fig. 5: the schematic diagram of the button circuit of a preferred embodiment of the foot health care instrument of the present invention;

Fig. 6: the schematic diagram of the main control circuit of a preferred embodiment of the foot health care instrument of the present invention;

Fig. 7: the schematic diagram of the liquid crystal circuit of a preferred embodiment of the foot health care apparatus of the present invention;

Fig. 8: the schematic diagram of the general circuit diagram of a preferred embodiment of the foot health care apparatus of the present invention;

Figure 9: a perspective view of a preferred embodiment of a foot health care instrument of the present invention;

Figure 10: an exploded view of the foot health care apparatus of a preferred embodiment of the foot health care apparatus of the present invention,

Figure 11: the perspective view of the upper shell of a preferred embodiment of the foot health instrument of the present invention;

Figure 12: the top view of the upper shell of a preferred embodiment of the foot health care instrument of the present invention;

Figure 13: a perspective view of the lower shell of a preferred embodiment of the foot health instrument of the present invention;

Figure 14: the bottom view of the lower shell of a preferred embodiment of the foot health instrument of the present invention;

Figure 15: the perspective view of the upper shell+lower shell of a preferred embodiment of the foot health instrument of the present invention;

Figure 16: the foot pedal of a preferred embodiment of the foot health instrument of the present invention;

Figure 17: foot pedal+lower shell perspective view of a preferred embodiment of the foot health instrument of the present invention;

Figure 18: foot pedal + lower shell rear view of a preferred embodiment of the foot health instrument of the present invention;

Figure 19: foot pedal+circuit board perspective view of a preferred embodiment of the foot health instrument of the present invention;

Figure 20: foot pedal+circuit board bottom view of a preferred embodiment of the foot health instrument of the present invention;

Figure 21: a perspective view after removing the lower shell of a preferred embodiment of the foot health instrument of the present invention;

Figure 22: A schematic diagram of the internal wiring of a preferred embodiment of the foot health care apparatus of the present invention.

In the figure: 1. Panel; 2. Upper shell; 3. LCD screen; 4. Inner shell; 5. Foot pedal; 6. Decorative parts; 7. Light-emitting board; 8. Middle shell; 9. Cooling fan; 10 , audio socket; 11, lower shell; 12, machine foot; 13, switch socket; 14, circuit board; 15, switching power supply;

In the figures, the same or similar elements are marked with the same numerals, and different elements are marked with different numerals.

Detailed ways

Hereinafter, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , the present invention mainly generates high-frequency pulse current through a pulse signal generating circuit arranged in the circuit board 14 , and the pulse signal generating circuit includes an inverting circuit, a crystal oscillator circuit, and a primary amplifier circuit.

The crystal oscillator circuit includes a crystal oscillator body X1, a resistor R9, a first capacitor C3 and a second capacitor C4; the first capacitor C3 and the second capacitor C4 are connected in series with the crystal oscillator X1 and the resistor R9 in parallel.

The inverting circuit includes an inverting chip U1 and a capacitor C1; the port 14 of the inverting chip U1 is connected in series with the capacitor C1 and then grounded, the port 1 is connected to the input end of the crystal oscillator X1 of the crystal oscillator circuit, and the port 2 is connected to the crystal oscillator X1 of the crystal oscillator circuit Output end; the model of the reverse chip U1 is CD4069.

The pulse signal generating circuit further includes a chip U2 and a resistor R11; the port 1 of the chip U2 and the resistor R11 are connected in series with the port 8 of the reverse chip U1, the port 2 of the chip U2 is connected to the port 6 of the reverse chip U1, and the chip U2 is connected to the port 6 of the reverse chip U1. U2 port 12 is connected to the reverse chip U1 port 9, the chip U2 port 11 is connected to the port 8 and then connected to the reverse chip U1 port 12; the chip U2 model is CD4073BM.

The primary amplifier circuit includes a transistor Q3, a transistor Q4, a transistor Q5, a transistor Q6, a diode D3, a diode D4, a diode D5, a diode D6, a resistor R12, and a resistor R13; the port 9 of the chip U2 is connected to the resistor R12 and then connected to the transistor Q3, The base level of Q4, the chip U2 port 10 is connected to the base level of the transistors Q5 and Q6 after the resistor R13 is connected.

The pulse signal generating circuit is used for generating high frequency pulse current of 1MHZ and pre-amplifying it. CD4069 is a 6-inverter circuit, which consists of six COS/MOS inverter circuits, and a crystal oscillator circuit, crystal oscillator X1, capacitor C3, C4, resistor R9, and generates a 1MHZ pulse signal. CD4073BM is a three-way 3-input AND gate logic chip. The Y1 and Y2 terminals output two-way pulse signals through resistors R12 and R13, signal amplification circuit transistors Q3, Q4, Q5, Q6, and protection diodes D3, D4, D5, D6 for primary power enlarge.

It is a very scientific generalization that people age first, and it is the first manifestation of human aging. "People age first" is caused by internal and external factors.

The causes of human aging are complex, and in the final analysis, it is determined by the process of cell apoptosis, aging and death. Cell apoptosis is the life cycle of cells. The life cycle of normal cells is about 40-60 days, and the life cycle of red blood cells is about 4 to 5 months, which is determined by the genes of the cells. Apoptosis of cells is the reproduction of new cell membranes by cell genes, which replaces the aging cell membranes to protect cells and does not affect the life and shape of cells. Apoptosis of surface cells only forms "dander", just like snake shedding, and does not affect the appearance of the human body. Each time a cell undergoes apoptosis, a section of telomeres in the nucleus is shed, until all telomeres are shed, ending cell apoptosis. The end of apoptosis is only the beginning of cell senescence and not immediate cell death. It is the gradual aging of cells without nutrients. The aging of cells in the body is the aging of organs: the aging of the body surface is the accumulation of senescent cells, which of course affects the appearance, showing that the human body begins to age. The latest medical clinical data statistics show that many diseases of the human respiratory system, digestive system, cardiovascular system, endocrine system, immune system, etc. are caused by the aging of the system itself, loss of regeneration ability, and difficulty in maintaining normal metabolism. a performance. The younger age of diseases such as cardiovascular disease, diabetes, rheumatism and rheumatoid disease is precisely the characteristic of rapid human aging.

The internal cause of "people age first" is that the feet are farthest from the human heart. When the pressure generated by the heart contraction reaches the arterioles in front of the capillaries on the soles of the feet, the pressure of blood transport is almost zero. The blood in the venules and veins behind the capillaries is returned to the heart by the attractive force generated by the diastole of the heart. Therefore, the local microcirculation of the sole of the foot is poor. The hands are also far away from the heart, and some people also experience cold hands in winter due to poor blood circulation.

The external cause of "old feet decline first" is the long-term pressure on the feet, the arterioles, capillaries, and venules of the local microcirculation are partially compressed, and the cross-section of the blood vessels becomes smaller or even closed. It is difficult for the tissues of the feet to get enough nutrients and oxygen, and the metabolism becomes poor, even cold, which affects sleep. Although the hands are also far away from the heart, the hands are responsible for all life movements, and the pressure generated when the hands are exerted is only temporary. There will be no "old hands decline first".

The above-mentioned internal and external factors cause poor blood circulation in the feet, and of course they gradually age. Therefore, "people age first" is the first manifestation of aging.

The sole of the foot is also known as the second heart of the human body. Timely pressurization can also promote local blood circulation, regulate the endocrine system, enhance the function of human organs, and achieve health care effects of disease prevention and treatment.

Foot bath has a history of thousands of years. The earliest documentary record is the "Elbow Hou Bei Ji Fang" in the Jin Dynasty, which has a history of more than a thousand years. Modern foot bath equipment includes "foot soaking basin", "foot soaking bucket", etc., which have certain curative effects. However, the water in the foot bath includes Chinese medicinal liquid for foot bath. When the initial temperature is appropriate, the feet will quickly cool down when immersed in it, and the muscles are poor conductors of heat, so it is difficult for heat to be introduced into the body from the outside. If the temperature is too high, it is easy to be scalded. Therefore, it is difficult to obtain the best effect. Refer to "Chinese Journal of Behavioral Medicine", the first issue of 2001, the name of the academic literature "external causes of neck and shoulder pain and its prevention and treatment".

The foot health care device of the present invention does not rely on the heat transfer of the water in the traditional foot bath, but relies on the high-frequency current to accelerate the vibration of the water molecules in the lower limbs, rub against each other to generate heat, heat up both lower limbs at the same time, and promote the blood circulation of the feet. Make the lower limbs get enough nutrition and oxygen; through the regulation of the body's thermoregulatory center, the sweat glands of the whole body are opened at the same time, and the excretion of waste in the body is accelerated.

Therefore, the foot health care device of the present invention can gradually accelerate the blood circulation in the body, make the whole body feel warm, maintain normal metabolism, relax the muscles and activate blood, relieve pressure, and achieve the effect of calming the mind.

Alternating currents with frequencies greater than 100 kilohertz (100,000 Hz) are called high frequency currents. It spreads around in the form of electromagnetic waves. The speed of electromagnetic waves propagating in space is equal to the speed of light, which is 3 × 108 meters per second. The frequency of the high-frequency current is inversely proportional to the wavelength, which can be expressed by the formula: f=V/λ. where f is the frequency in Hz, λ is the wavelength in m, and V is the speed of light in m/s. Therefore, knowing the frequency of high-frequency electricity can calculate its wavelength, and knowing the wavelength can also calculate its frequency. The application of high-frequency electricity to the human body to achieve the purpose of preventing and treating diseases is called high-frequency electrotherapy.

When high-frequency electricity acts on the human body, it has the following characteristics:

(1) No electrolysis occurs. Because it is an alternating current, it is a positive and negative current that alternates. In the positive half cycle, the ions move in one direction; in the negative half cycle, the ions move in the opposite direction, so electrolysis will not occur. .

(2) No excitatory effect occurs when acting on nerves and muscles. According to electrophysiological measurement, if nerve or muscle excitation is required, the duration of stimulation should reach 0.3 and 1 ms, respectively. However, when the frequency is greater than 100,000 Hz, the time of each cycle is less than 0.01ms, and the cathodal stimulation only accounts for 1/4 of it, that is, 0.0025ms. , Under normal circumstances, no matter how many cycles are passed, it generally does not cause neuromuscular excitation and produces a contraction response.

(3) When high-frequency electricity passes through the human body, it can produce thermal and non-thermal effects in the tissue. In low and intermediate frequency currents, due to the small current passing through the tissue, sufficient heat cannot be generated. But at high frequency, due to the increase of frequency, the capacitive reactance XC drops sharply, and the tissue resistance can obviously drop to hundreds, tens or even several ohms. Therefore, the current passing through the human body can increase sharply. According to Joule-Lenz's law, Q=0.24I2Rt, in the formula Q-heat production, I-current intensity, R-resistance, t-energization time, so thermal effect can be generated in high-frequency electrical tissue. In addition, when high-frequency electricity acts on the human body with an electric field strength that does not cause an increase in body temperature, it can also change the physical and chemical properties and physiological responses of tissues, which is called athermal effect.

(4) During high-frequency electrotherapy, the electrode can leave the skin. During low-frequency and medium-frequency electrotherapy, the electrode must be in close contact with the skin, otherwise the current cannot pass into the human body. The air gap forms a capacitor, the skin and electrodes are the two conductors of the capacitor, and the air is the medium. [Baidu Encyclopedia: https://baike.baidu.com/item/%E9%AB%98%E9%A2%91%E7%96%97%E6%B3%95/9870483]

Therefore, the 1 MHz generated by the pulse signal generating circuit in the present invention conforms to the safe use specification, and can generate heat energy and transmit it to various parts of the body for perspiration, thus better adapting to the blood circulation of the human body.

As shown in FIG. 8 , the circuit board further includes a key circuit, a main control circuit, a fan and a laser control circuit, a pulse signal amplifying output circuit and a power supply circuit.

As shown in FIG. 5 , the button circuit includes a chip U3, resistors R1, R2, R3, R4, R5, R6, capacitors C4, C7; ports 3, 2, 1, 6, 5, and 4 of the chip U3 are respectively Connected to the resistors R1, R2, R3, R4, R5, R6, the port 7 of the chip U3 is connected to one end of the capacitor C7, and the port 8 is connected to the other end of the capacitor C7 and grounded; the chip U3 model for TG908. So as to realize related operation functions, such as time, intensity, start/stop, etc.

The specific signal flow is:

Laser keys:

U3 IC1-K1→IC1 U2-A3→U2-O4→J1-6→U3 IC1-K1→Mainboard power tube Q3→Mainboard J5 interface→Mainboard J1-6

Time button:

U3 IC1-K2→LCD display

Power switch button:

U3 IC1-K3→IC1 U2-A1→U2-O3→J1-5→Main board power tube Q2→Main board J3 J4 interface

Strength+Key:

U3 IC1-K4→IC1 U2-A4→transistor Q5 base→socket J1-2→motherboard photocouple Q1→motherboard U1-13→motherboard U2-9 U2-10→motherboard transformer T2 T1 socket J7

Strength-Key:

U3 IC1-K5→IC1 U2-A1→transistor Q5 base→socket J1-2→motherboard photocouple Q1→motherboard U1-13→motherboard U2-9 U2-10→motherboard transformer T2 T1 socket J7

Start/Stop button:

U3 IC1-K6→IC1 U2-A1→U2-O2→Q2 Q4→Socket J2-123

Among them, U2 is CD4001, U3 is TG908, and IC1 is STC15W4K58S4.

As shown in Figure 6 and Figure 7, the main control circuit includes pull-up resistors RP1, RP2, resistors R7, R8, R11, diodes D3, D5, transistor Q5, sockets J1, J4, capacitors E1, C2, C3, Chip IC1, chip U2; the input terminals A1, A2, A3, A4, and A5 of the chip U2 are connected to the chip IC1, and the output terminals O4 and O3 are respectively connected to the fan and laser control circuit through pins 6 and 5 of the socket J1. ; The output terminal O1 is connected in series with the transistor Q5 after the resistor R11 is connected, and the pulse signal generating circuit is connected after the pin 2 of the socket J1. At the same time, it also includes a liquid crystal screen circuit; the liquid crystal screen circuit includes a resistor R10, a transistor Q1, and a field effect transistor Q4. The output terminal O2 of the main control circuit chip U2 is connected to the resistor R10 and is connected in series with the transistor Q1 and the field effect transistor Q4.

The main control circuit is mainly used to cooperate with the peripheral circuit to achieve the required functions. By adjusting its duty cycle, a low-frequency modulation wave of 20-100Hz is generated, and the output intensity of the 1MHz frequency can be adjusted.

RP1 and RP2 are pull-up exclusions, J4 is the programming interface, capacitors E1 and C2S are filter capacitors, and chip IC1 is the STC15W4K58S4 MCU of Hongjing Technology. For detailed chip information, please refer to the official website of Hongjing Technology. The chip U2 is CD4001, which is a 2-input forward NOR gate integrated circuit, which cooperates with the chip IC1 to realize related functions. The input terminals A1, A2, A3, A4 and A5 of U2 are connected to the chip IC1, and the output terminal O4 is connected to the laser circuit through the 6-pin of the socket, which controls the on-off of the laser circuit; the output terminal O3 is connected to the fan circuit through the 5-pin of the socket. That is, the on-off of the fan circuit; the output terminal O1 drives the transistor Q5 through the resistor R11, and then connects to the pulse generating circuit through the 5-pin of the socket, that is, controls the on-off of the pulse circuit; the diodes D3, D5, the resistors R7, R8, and the capacitor C3 The output power detection circuit is formed, and the detection signal level is input to pin 9 of IC1 through one end of the capacitor C3, that is, the power is controlled according to the level of the detection signal to ensure safe use.

The liquid crystal screen circuit controls the on-off of the power supply of the liquid crystal screen and communicates with the main control chip to realize the required functions.

The control signal is sent to the transistor Q1 by the resistor R10 to amplify and drive the field effect transistor Q4, which can control the on-off of the 5V power supply. The connector J2 is connected to the LCD screen, and communicates with the main control chip to achieve the required functions.

As shown in Figure 4, the fan and laser control circuit includes field effect transistors Q2, Q3, resistors R1, R2, R3, R4, R5, R26, sockets J3, J4, J5; the input end of the resistor R3 is connected to the pulse signal The pin 5 of the socket J1 of the generating circuit, the FET Q2 and the resistor R4 are connected in parallel and then the output terminal of the resistor R3; the input terminal of the resistor R2 is connected to the pin 6 of the socket J1 of the pulse signal generating circuit, and the FET Q3 and the resistor R1 are connected in parallel Then connect the output terminal of resistor R2.

The fan and laser control circuit are used to control the operation of the cooling fan and the laser circuit. The switch circuit composed of FET Q2, resistors R3, R4, R26, and cooling fan sockets J3 and J4 controls the operation of the cooling fan. The switch circuit composed of field effect transistor Q3, resistors R1, R2, R5 and laser lamp socket J5 controls the work of the laser circuit.

As shown in Figure 2, the pulse signal amplifying output circuit includes transformer T1, transformer T2, resistor R14, resistor R15, resistor R16, resistor R17, resistor R19, capacitor C7, capacitor C8, capacitor C9, capacitor C16, capacitor C17, Capacitor C18, capacitor C19, capacitor C20, capacitor C21, diode D5, diode D6, transistor Q8, transistor Q9, transistor Q10, inductor L1, inductor L2, socket J7; one end of the transformer T2 is connected to the capacitor C7 and then connected to the primary amplifier The diode D4 and the diode D3 of the circuit, the other end is connected to the resistor R14 and then connected to the diode D5 and the diode D6 of the primary amplifier circuit; the socket J7 is connected to the two foot pedals (5).

The pulse signal amplifying output circuit is used to re-power amplify the pulse signal pre-amplified in the previous stage to meet the output amplitude requirement, and the generated 1MHz high-frequency pulse current can output a 1MHz sine wave stably through the pulse signal amplifying circuit.

The two-way signals output by the transformer T2 pass through resistors R16, R19, capacitor C8, diode D6, transistor Q8, power tubes Q7, R15, R17, capacitor C9, diode D5, transistor Q10, power tube Q9, filter capacitors C16, C17, and C18 respectively. , C19, two-way power amplifier circuit composed of filter inductor L1 for power amplification, and then boost output through the transformer T2, filter capacitors C20, C21, filter inductor L2 to form an output waveform filter circuit.

The power supply circuit includes a voltage regulator chip U3, an energy storage inductor L2, an inductor T3, a freewheeling diode D7, an energy storage capacitor E3, a filter capacitor E4, a filter capacitor E5, a filter capacitor C16, a filter capacitor C17, a capacitor E1, and a capacitor C10. Resistor R21, resistor R22, resistor R23, resistor R24; both ends of the energy storage inductor L2 are connected to the ports 2 and 4 of the voltage stabilizing chip U3; the positive electrode of the freewheeling diode D7 is connected to the ports 3 and 5 of the voltage stabilizing chip U3, and the negative electrode is connected to the voltage stabilizing chip. Port 4 of U3; 12V DC voltage can be converted into 5V DC voltage; the model of the chip U3 is LM2596.

The power supply circuit is used to provide 220V AC, 12V DC, and 5V DC for related circuits to work.

U3 is a voltage regulator chip. The energy storage inductor L2, the freewheeling diode D7, and the energy storage capacitor E3 form a DC-DC conversion circuit to convert the 12V DC voltage into a 5V DC voltage. Inductor T3, capacitors C10, E1, resistors R24, R23, rectifier diodes D8, D9, D10, D11 rectify the output voltage for the control circuit to detect and judge, so as to adjust the working state of the circuit. The rectifier bridge RS807 rectifies the input AC 220V voltage into a DC voltage, and outputs it to the power amplifier circuit through filter capacitors C17, C16, E4, E5 and voltage divider resistors R22, R21.

The circuit structure of the foot health care instrument of the present invention is briefly described above. In terms of mechanical structure, as shown in Figure 13 and Figure 17, the foot health care instrument mainly includes a lower shell (11), a middle shell (8), a cover of which Provided on the lower shell (11), two foot pedals (5) (Fig. 16), which are provided on the middle shell, and a circuit board (14), which are located in the lower shell (11) , all the circuits mentioned above are centrally arranged in the circuit board (14), and the circuit board (14) and the foot pedal (5) are connected by wires, as shown in FIG. 20 .

Further, the foot health care apparatus may also include: a panel (1), an upper casing (2), a liquid crystal display screen (3), an inner casing (4), a decorative piece (6), a light-emitting plate (7), a cooling fan ( 9), audio socket (10), lower shell (11), machine foot (12), switch socket (13), switching power supply (15), the panel (1) and the liquid crystal display (3) are installed in the In the middle of the upper shell (2), the decorative piece (6) and the light-emitting panel (7) are mounted on the middle shell (8), and the panel (1) is located in the front of the liquid crystal display screen (3). Above, the upper casing (2) is mounted on the inner casing (4), the inner casing (4) is mounted on the middle casing (8), and the cooling fan (9) is located in the middle casing (8) ) and the lower shell (11), the audio socket (10), the switch socket (13), the switching power supply (15), and the machine feet (12) are mounted on the lower shell (12). 11)

Further, as shown in Fig. 14, the machine feet (12) are installed at the bottom of the lower shell (11), and the number of the machine feet (12) is 4, which can provide stable support and prevent the equipment from being caused by improper operation. Flip to.

Further, the number of cooling fans (9) is 2, which can better dissipate heat and prevent the machine from overheating and stop working.

Further, the light-emitting plate (7) is below the decorative piece (6), and when in use, under the foil of the light-emitting board (7), the decorative piece (6) can emit light to play a prompting and beautifying effect.

In the case of use, the user places both feet on the two foot pedals (5) respectively, the two foot pedals (5) form a circuit with the human body, and the pulse signal generating circuit generates High frequency pulse current.

The specific use method is:

(1), plug in the power cord and turn on the main power switch;

(2), touch the power button on the operation panel to turn on;

(3) Sit down on a special chair or stool, with bare feet and full contact with the two pedals of the instrument signal output;

(4), touch the start button on the operation panel;

(5), touch the time button on the operation panel to select the use time;

(6), touch the intensity button on the operation panel to select the appropriate intensity;

(7) After use, touch the power button on the operation panel to shut down, then turn off the main power switch, and unplug the power cord.

Based on the above-mentioned inventive concept, referring to FIGS. 1 to 22, according to a preferred embodiment of the foot health care apparatus of the present invention, the foot health care apparatus comprises: a lower shell (11); a middle shell (8), which is covered on the on the lower shell (11); two foot pedals (5), which are arranged on the middle shell; and a circuit board (14), which is located in the lower shell (11), the circuit board (14) ) is provided with a pulse signal generating circuit, the pulse signal generating circuit includes an inverting circuit, a crystal oscillator circuit, and a primary amplifier circuit. It can be understood that the lower shell 11 and the middle shell 8 can be made of electrical insulating materials such as engineering plastics. Table-shaped, or oval-shaped, etc. The footrest is made of, for example, a conductive metal material, such as a stainless steel plate, an aluminum plate, a copper plate, or the like. Circuit boards are also called circuit boards or printed circuit boards, on which many electronic components are placed. The pulse signal generating circuit may have various implementations, such as the specific implementations described in FIG. 1 and the following, or may be a pulse signal generating circuit with other physical structures composed of an inverter circuit, a crystal oscillator circuit, and a primary amplifier circuit.

The gist of the present invention is that the pulse signal generating circuit generates a 1MHz high-frequency pulse current, and the two foot pedals (5) are electrically connected to the circuit board (14). The feet are respectively placed on the two foot pedals (5), the two foot pedals (5) form a loop with the human body, and the pulse signal generating circuit generates a high-frequency pulse current, which is connected with the human body's feet. Contact produces thermal energy that is transferred to various parts of the body. It should be noted that, during use, if only one foot is placed, the foot health care device of the present invention will not work.

Such a technical solution realizes that the pulse signal generating circuit generates a pulse wave of high frequency alternating electric frequency, generates a magnetic frequency field that resonates with human cells, and achieves the technical effect of promoting human blood circulation and improving physical fitness.

Preferably, referring to FIG. 1 , the crystal oscillator circuit includes a crystal oscillator body X1, a resistor R9, a first capacitor C3 and a second capacitor C4; the first capacitor C3 and the second capacitor C4 are connected in series with the crystal oscillator X1, Resistor R9 is connected in parallel. It can be understood that the crystal oscillator body X1 is, for example, a quartz crystal oscillator or a chip crystal oscillator. The electrical connection relationship between the various electronic components not described herein is referred to FIG. 1 and will not be described in detail here. Optionally, the number of crystal oscillators, resistors, capacitors and electrical connection methods of the crystal oscillator circuit can be modified in many ways, as long as they can be used in the technical solution of the present invention. Such a configuration achieves the technical effect of generating a high-frequency pulsed current.

Preferably, referring to FIG. 1 , the inverting circuit includes an inverting chip U1 and a capacitor C1; the port 14 of the inverting chip U1 is connected to the capacitor C1 in series and then grounded, the port 1 is connected to the input end of the crystal oscillator X1 of the crystal oscillator circuit, and the port 2 Connect to the crystal oscillator X1 output end of the crystal oscillator circuit.

Preferably, referring to FIG. 1 , the pulse signal generating circuit further includes a chip U2 and a resistor R11; the port 1 of the chip U2 and the resistor R11 are connected in series with the port 8 of the reverse chip U1, and the port 2 of the chip U2 is connected to the port 8 of the reverse chip U2. To the chip U1 port 6, the chip U2 port 12 is connected to the reverse chip U1 port 9, and the chip U2 port 11 is connected to the port 8 and then connected to the reverse chip U1 port 12.

Preferably, referring to FIG. 1 , the primary amplifier circuit includes a transistor Q3, a transistor Q4, a transistor Q5, a transistor Q6, a diode D3, a diode D4, a diode D5, a diode D6, a resistor R12, and a resistor R13; the chip U2 port 9 is connected to The resistor R12 is connected to the base level of the transistors Q3 and Q4, and the port 10 of the chip U2 is connected to the base level of the transistors Q5 and Q6 after the resistor R13 is connected.

Preferably, referring to FIG. 8 , the circuit board further includes a key circuit, a main control circuit, a fan and a laser control circuit, a pulse signal amplifying output circuit and a power supply circuit.

Preferably, referring to FIG. 5 , the button circuit includes a chip U3, resistors R1, R2, R3, R4, R5, R6, capacitors C4, C7; ports 3, 2, 1, 6, 5, and 4 of the chip U3 They are respectively connected to the resistors R1, R2, R3, R4, R5 and R6, the port 7 of the chip U3 is connected to one end of the capacitor C7, and the port 8 is connected to the other end of the capacitor C7 and grounded.

Preferably, referring to FIG. 6 , the main control circuit includes pull-up resistors RP1, RP2, resistors R7, R8, R11, diodes D3, D5, transistor Q5, sockets J1, J4, capacitors E1, C2, C3, chip IC1 , chip U2; the input terminals A1, A2, A3, A4, and A5 of the chip U2 are connected to the chip IC1, and the output terminals O4 and O3 are respectively connected to the fan and laser control circuit through pins 6 and 5 of the socket J1; output The terminal O1 is connected to the resistor R11 and connected in series with the transistor Q5, and then connected to the pulse signal generating circuit through the pin 2 of the socket J1.

Preferably, referring to FIG. 7 , the main control circuit further includes a liquid crystal screen circuit; the liquid crystal screen circuit includes a resistor R10, a transistor Q1, a field effect transistor Q4, and the output end O2 of the main control circuit chip U2 is connected to the resistor R10 It is connected in series with the transistor Q1 and the field effect transistor Q4.

Preferably, referring to FIG. 4 , the fan and laser control circuit includes field effect transistors Q2, Q3, resistors R1, R2, R3, R4, R5, R26, sockets J3, J4, J5; the input terminal of resistor R3 is connected to the pulse The pin 5 of the socket J1 of the signal generating circuit, the FET Q2 and the resistor R4 are connected in parallel and then the output terminal of the resistor R3; the input terminal of the resistor R2 is connected to the pin 6 of the socket J1 of the pulse signal generating circuit, the FET Q3 and the resistor R1 The output terminal of resistor R2 is connected in parallel.

Preferably, referring to FIG. 2 , the pulse signal amplifying output circuit includes a transformer T1, a transformer T2, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R19, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C16, and a capacitor C17 , capacitor C18, capacitor C19, capacitor C20, capacitor C21, diode D5, diode D6, transistor Q8, transistor Q9, transistor Q10, inductor L1, inductor L2, socket J7; one end of the transformer T2 is connected to the capacitor C7 and then connected to the primary The diode D4 and the diode D3 of the amplifying circuit, the other end is connected to the resistor R14 and then the diode D5 and the diode D6 of the primary amplifying circuit; the socket J7 is connected to the two foot pedals (5).

Preferably, referring to FIG. 3 , the power supply circuit includes a voltage regulator chip U3, an energy storage inductor L2, an inductor T3, a freewheeling diode D7, an energy storage capacitor E3, a filter capacitor E4, a filter capacitor E5, a filter capacitor C16, and a filter capacitor C17 , capacitor E1, capacitor C10, resistor R21, resistor R22, resistor R23, resistor R24;

Both ends of the energy storage inductor L2 are connected to the ports 2 and 4 of the voltage stabilizing chip U3; the positive electrode of the freewheeling diode D7 is connected to the ports 3 and 5 of the voltage stabilizing chip U3, and the negative electrode is connected to the port 4 of the voltage stabilizing chip U3; Convert to 5V DC voltage.

Preferably, referring to FIG. 10 , the foot health care device further includes a panel 1 , an upper shell 2 , a liquid crystal display screen 3 , an inner shell 4 , a decorative piece 6 , a light-emitting board 7 , a cooling fan 9 , an audio socket 10 , and a lower shell 11 , machine foot 12, switch socket 13, switching power supply 15, the panel 1 and the liquid crystal display screen 3 are installed in the middle of the upper shell 2, the decorative piece 6 and the light-emitting board 7 are installed in the middle shell 8. The panel 1 is located directly above the liquid crystal display screen 3, the upper shell 2 is mounted on the inner shell 4, the inner shell 4 is mounted on the middle shell 8, and the cooling fan 9 is located in the Between the middle shell 8 and the lower shell 11 , the audio socket 10 , the switch socket 13 , the switching power supply 15 , and the machine feet 12 are installed on the lower shell 11 .

Preferably, referring to FIG. 14 , the machine feet 12 are installed on the bottom of the lower shell 11 , and the number of the machine feet 12 is four.

Preferably, referring to FIG. 10 , the number of cooling fans 9 is two.

Preferably, referring to FIG. 10 , the light-emitting panel 7 is below the decorative element 6 .

Preferred or specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the design concept of the present invention without creative efforts. Therefore, any technical solutions that those skilled in the art can obtain through logical analysis, reasoning or limited experiments based on the design concept created by the present invention on the basis of the prior art shall fall within the scope of the present invention and/or or within the scope of protection determined by the claims.

Claims (10)

1. A foot health care apparatus, which includes: lower shell (11), The middle shell (8) is connected to the lower shell (11), Two foot pedals (5), which are arranged on the middle shell, and a circuit board (14), which is located in the lower shell (11), a pulse signal generating circuit is provided in the circuit board (14), and the pulse signal generating circuit includes an inverting circuit, a crystal oscillator circuit, and a primary amplifier circuit , It is characterized in that: the pulse signal generating circuit outputs a 1MHz high-frequency pulse current; The two foot pedals (5) are electrically connected to the circuit board (14), and in the case of use, the user places both feet on the two foot pedals (5) respectively, and the The two foot pedals (5) form a loop with the human body, and the pulse signal generating circuit generates the 1MHz high-frequency pulse current, which contacts with the foot of the human body to generate heat energy and transmits it to various parts of the body. 2 . The foot health care device according to claim 1 , wherein the crystal oscillator circuit comprises a crystal oscillator body X1, a resistor R9, a first capacitor C3 and a second capacitor C4; the first capacitor C3 and the first capacitor The two capacitors C4 are connected in parallel with the crystal oscillator X1 and the resistor R9 after being connected in series; The inverting circuit includes an inverting chip U1 and a capacitor C1; the port 14 of the inverting chip U1 is connected in series with the capacitor C1 and then grounded, the port 1 is connected to the input end of the crystal oscillator X1 of the crystal oscillator circuit, and the port 2 is connected to the crystal oscillator X1 of the crystal oscillator circuit output; The pulse signal generating circuit further includes a chip U2 and a resistor R11; the port 1 of the chip U2 and the resistor R11 are connected in series with the port 8 of the reverse chip U1, the port 2 of the chip U2 is connected to the port 6 of the reverse chip U1, and the chip U2 is connected to the port 6 of the reverse chip U1. U2 port 12 is connected to the reverse chip U1 port 9, and the chip U2 port 11 is connected to the port 8 and then connected to the reverse chip U1 port 12; The primary amplifier circuit includes a transistor Q3, a transistor Q4, a transistor Q5, a transistor Q6, a diode D3, a diode D4, a diode D5, a diode D6, a resistor R12, and a resistor R13; the port 9 of the chip U2 is connected to the resistor R12 and then connected to the transistor Q3, The base level of Q4, the chip U2 port 10 is connected to the base level of the transistors Q5 and Q6 after the resistor R13 is connected. 3 . The foot health care device according to claim 1 , wherein the circuit board further comprises a key circuit, a main control circuit, a fan and a laser control circuit, a pulse signal amplifying output circuit and a power supply circuit. 4 . 4. The foot health care apparatus according to claim 3, wherein the button circuit comprises a chip U3, resistors R1, R2, R3, R4, R5, R6, capacitors C4, C7; the ports of the chip U3 3, 2, 1, 6, 5, and 4 are respectively connected to the resistors R1, R2, R3, R4, R5, and R6, the port 7 of the chip U3 is connected to one end of the capacitor C7, and the port 8 is connected to the capacitor. The other end of C7 is connected and grounded. 5. The foot health care apparatus according to claim 1 or 3, characterized in that: the main control circuit comprises pull-up exclusion RP1, RP2, resistors R7, R8, R11, diodes D3, D5, transistor Q5, socket J1, J4, capacitors E1, C2, C3, chip IC1, chip U2; chip U2 input terminals A1, A2, A3, A4, A5 are connected to chip IC1, and output terminals O4 and O3 are respectively connected to pins 6 and lead of socket J1. Pin 5 is connected to the fan and the laser control circuit; the output end O1 is connected to the resistor R11 and then connected to the transistor Q5 in series, and the pulse signal generating circuit is connected to the pin 2 of the socket J1; the main control circuit adjusts its duty cycle by adjusting the Than to generate 20-100Hz low frequency modulation wave, realize the adjustment of 1MHz frequency output intensity. 6 . The foot health care device according to claim 5 , wherein the main control circuit further comprises a liquid crystal screen circuit; the liquid crystal screen circuit comprises a resistor R10 , a transistor Q1 , a field effect transistor Q4 , and the main control circuit The output end O2 of the circuit chip U2 is connected to the resistor R10 and is connected in series with the transistor Q1 and the field effect transistor Q4. 7. The foot health care apparatus according to claim 3, wherein the fan and the laser control circuit comprise field effect transistors Q2, Q3, resistors R1, R2, R3, R4, R5, R26, sockets J3, J4 , J5; the input end of the resistor R3 is connected to the pin 5 of the socket J1 of the pulse signal generating circuit, and the FET Q2 and the resistor R4 are connected in parallel with the output end of the resistor R3; Pin 6, the FET Q3 and the resistor R1 are connected in parallel with the output end of the resistor R2. 8. The foot health care device according to claim 1 or 3, wherein the pulse signal amplifying output circuit comprises a transformer T1, a transformer T2, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R19, a capacitor C7, capacitor C8, capacitor C9, capacitor C16, capacitor C17, capacitor C18, capacitor C19, capacitor C20, capacitor C21, diode D5, diode D6, transistor Q8, transistor Q9, transistor Q10, inductor L1, inductor L2, socket J7; One end of the transformer T2 is connected to the capacitor C7 and then connected to the diode D4 and D3 of the primary amplifier circuit, and the other end is connected to the resistor R14 and then connected to the diode D5 and D6 of the primary amplifier circuit; the socket J7 is connected to the two A foot pedal (5); the 1MHz high-frequency pulse current generated by the pulse signal generating circuit can stably output a 1MHz sine wave through the pulse signal amplifying circuit. 9. The foot health care device according to claim 3, wherein the power supply circuit comprises a voltage regulator chip U3, an energy storage inductor L2, an inductor T3, a freewheeling diode D7, an energy storage capacitor E3, a filter capacitor E4, Filter capacitor E5, filter capacitor C16, filter capacitor C17, capacitor E1, capacitor C10, resistor R21, resistor R22, resistor R23, resistor R24; Both ends of the energy storage inductor L2 are connected to the ports 2 and 4 of the voltage stabilizing chip U3; the positive electrode of the freewheeling diode D7 is connected to the ports 3 and 5 of the voltage stabilizing chip U3, and the negative electrode is connected to the port 4 of the voltage stabilizing chip U3; Convert to 5V DC voltage. 10. The foot health care apparatus according to claim 1, wherein the foot health care apparatus further comprises a panel (1), an upper shell (2), a liquid crystal display (3), an inner shell (4), A decorative piece (6), a light-emitting board (7), a cooling fan (9), an audio socket (10), a machine foot (12), a switch socket (13), a switching power supply (15), the panel (1) and all the The liquid crystal display screen (3) is installed in the middle of the upper shell (2), the decorative piece (6) and the light-emitting board (7) are installed in the middle shell (8), and the panel (1) is located in the middle of the shell (8). Right above the liquid crystal display screen (3), the upper casing (2) is mounted on the inner casing (4), the inner casing (4) is mounted on the middle casing (8), and the cooling fan ( 9) Located between the middle shell (8) and the lower shell (11), the audio socket (10), the switch socket (13), the switching power supply (15), the machine feet ( 12) Installed on the lower shell (11); The machine feet (12) are mounted on the bottom of the lower shell (11), and the number of the machine feet (12) is 4; The number of the cooling fans (9) is 2; The light-emitting panel (7) is below the decorative element (6).

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