Gas supply structure of automatic moxa -moxibustion device with controllable smoke concentration

Abstract

This invention discloses an automatic moxibustion device with controllable smoke concentration, comprising an air intake device, a combustion chamber located within the combustion chamber, a buffer chamber formed by the upper fumigation chamber and the diversion plate of the moxibustion device, a fumigation chamber formed by the lower fumigation chamber of the moxibustion device fitting against the desired moxibustion area on the body, and an exhaust channel formed by two annular grooves on the upper and lower fumigation chambers of the moxibustion device. Mounting columns are respectively provided on both sides of the inner opening of the exhaust port of the upper fumigation chamber, and a roller shutter device is provided between the two mounting columns, connected to a motor. A smoke concentration measuring device is provided on the inner wall of the upper fumigation chamber to measure the smoke concentration and control the rolling or unrolling action of the roller shutter device. The number of the second and third air outlets of the upper fumigation chamber is determined through simulation analysis, so that the smoke fills the entire fumigation chamber in the shortest possible time, improving the moxibustion effect.

Description

Technical Field

[0001] This invention relates to an automatic moxibustion device, and more specifically to a gas supply structure for an automatic moxibustion device with controllable smoke concentration. Background Technology

[0002] With the improvement of people's living standards and the development of health awareness, moxibustion has received widespread attention and been widely promoted. Moxibustion, also known as moxibustion therapy, is a treatment method that uses moxa sticks or cones made from mugwort leaves. The heat and smoke generated by the moxa stimulate acupoints or specific parts of the body, thereby stimulating the activity of Qi (vital energy) to regulate disordered physiological and biochemical functions of the body, thus achieving the purpose of disease prevention and treatment. During the burning of moxa sticks, a large amount of smoke is produced, and the smell is strong and pungent. If the air passage of the moxibustion device is poorly sealed or lacks a smoke purification and recovery device, it will seriously affect the user experience and the effectiveness of moxibustion, and also pollute the environment. In addition, the current moxibustion devices are too bulky, which is not conducive to the carrying and use of moxibustion devices, thus restricting their widespread application. To reduce the size of moxibustion devices, the most important thing is to simplify the structure of the air passage for smoke circulation. As long as the air passage is simplified, the size of the moxibustion device will be reduced accordingly.

[0003] Currently, existing moxibustion devices cannot effectively solve the above-mentioned problems. For example, the moxibustion devices described in patent applications 201710685628.3, 201710686394.4, and 201711348985.7, although having multiple raised abutments on the side wall of the combustion chamber to ensure smooth airflow and complete combustion of the moxa stick, with the abutments being dot-shaped, strip-shaped, or spiral-shaped, suffer from complex manufacturing processes for dot-shaped and spiral-shaped abutments, increasing manufacturing costs. Furthermore, the contact between the abutment and the moxa stick is point or line contact, and the addition of strip-shaped abutments increases the unused volume of the abutment, reducing the space for flue gas flow and affecting the combustion of the moxa stick. In addition, the air intake device and fan are located outside the moxibustion device, resulting in a bulky device. Simultaneously, the flue gas recovery device is also located outside the moxibustion device, further increasing its size, making it inconvenient to carry and hindering its widespread application. The moxibustion device described in patent application 201810046743.0 lacks a smoke collection or purification device, allowing smoke to directly enter the air, polluting the environment and affecting the user experience. The integrated automatic moxibustion device described in patent application 201910800799.5, while incorporating the air intake device within the main housing for a compact structure, lacks a raised support on the inner wall of the cylindrical combustion chamber for holding the moxa sticks. This obstructs airflow within the combustion chamber, resulting in incomplete combustion of the moxa sticks. Furthermore, the smoke recovery system is located externally, increasing the device's size and making it inconvenient to carry and cumbersome to use. The smokeless moxibustion device described in patent application 201910574018.5, although equipped with a smoke purification device, suffers from an excessively long air duct and large size, limiting its use to indoor environments and hindering its widespread adoption. Therefore, designing a compact, simple, well-sealed airway structure for a moxibustion device that also incorporates a smoke purification device would facilitate the widespread application of moxibustion devices.

[0004] In addition, the above-mentioned moxibustion device also has the following problems: (1) The concentration of moxa smoke in the fumigation chamber cannot be adjusted according to the moxibustion user's tolerance, thus affecting the moxibustion experience; (2) For upper fumigation chambers of different volumes, the number of air outlets required is also different. When the number of air outlets is too large, it not only increases the processing and manufacturing cost of the enterprise, but also has little effect on reducing the time required for moxa smoke to fill the entire fumigation chamber; when the number of air outlets is too small, it increases the time required for moxa smoke to fill the entire fumigation chamber, affecting the moxibustion effect of the moxibustion user. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a gas supply structure for an automatic moxibustion device with controllable smoke concentration.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: an air supply structure for an automatic moxibustion device with controllable smoke concentration, including an air intake device, a combustion chamber, a buffer chamber formed by the upper fumigation chamber of the moxibustion device and the diversion plate of the moxibustion device, a fumigation chamber formed by the lower fumigation chamber of the moxibustion device and the part of the human body to be moxibusted, and an exhaust channel formed by two annular grooves on the upper fumigation chamber and the lower fumigation chamber of the moxibustion device.

[0007] The air intake device is connected to the first air intake on the oblique surface of the ignition device of the moxibustion device through the air outlet on the oblique surface of the touch panel of the moxibustion device, and is connected to the combustion chamber through the air outlet at the ignition device; the combustion chamber is connected to the buffer chamber through the first air outlet on the bottom surface of the combustion chamber.

[0008] The air intake device includes an air pump and an air pipe. The air pump is installed on a bracket inside the outer shell of the moxibustion device. An air pipe is installed at the air outlet of the air pump. The air pipe passes through a groove on the touch panel of the moxibustion device and connects to the air inlet on the touch panel. The ignition device of the moxibustion device is installed in the middle of the touch panel. The beveled surface of the touch panel matches the beveled surface of the ignition device, so that the air inlet on the touch panel is connected to the first air inlet on the beveled surface of the ignition device.

[0009] The upper fumigation chamber has several waist-shaped second air outlets evenly distributed around the central axis of the combustion chamber at the outer periphery of the diversion plate. The upper fumigation chamber has several circular third air outlets on the part facing the diversion plate. The buffer chamber is connected to the fumigation chamber through the second and third air inlets on the diversion plate and the second and third air outlets on the inner cavity of the upper fumigation chamber. The fumigation chamber is connected to the exhaust channel through the fourth air outlet on the lower fumigation chamber. The exhaust channel is connected to the outside air through the exhaust port on the outer wall of the upper fumigation chamber. The smoke from the combustion chamber flows to the fumigation chamber through the second and third air outlets.

[0010] The upper fumigation chamber has mounting columns on both sides of the exhaust port, and a roller shutter device is installed between the two mounting columns. The roller shutter device is connected to a motor. The inner wall of the upper fumigation chamber is equipped with a smoke concentration measuring device to measure the concentration of moxa smoke in order to control the rolling up or down action of the roller shutter device.

[0011] The number of the second and third air outlets of the upper fumigation chamber is determined by the following method:

[0012] Step 1: Based on the number interval a (a≥4) for both the second and third air outlets, design several moxibustion device schemes for upper fumigation chambers with different numbers of second and third air outlets.

[0013] Step 2: Use the fluid analysis software Xflow to simulate and analyze the flow direction of moxibustion smoke for different moxibustion device schemes, including identifying the fluid domain, establishing the inlet boundary surface, setting the inlet velocity, establishing the pressure outlet, and preset the calculation time. Calculate the time required for the moxibustion smoke to fill the fumigation chamber. Set the outlet velocity to 0.0001m / s to fill the fumigation chamber with moxibustion smoke.

[0014] Step 3: Sort the calculation results of different moxibustion device schemes according to the number of second and third air outlets, calculate the required time difference between adjacent ones, and analyze all time differences based on the set time s. Among all time differences, select two moxibustion device schemes whose time difference is less than or equal to the set time s for the first time, and record the number of second and third air outlets of these two moxibustion device schemes.

[0015] Step 4: Based on the two moxibustion device schemes selected in Step 3, refine them by setting different numbers of second air outlets in the upper fumigation chamber with an interval of 1 between the two moxibustion device schemes, and setting different numbers of third air outlets in the upper fumigation chamber with an interval of 1 between the two moxibustion device schemes, thereby forming a different upper fumigation chamber scheme and a different moxibustion device scheme.

[0016] Step 5: Use the fluid analysis software Xflow to simulate and analyze the flow direction of moxibustion smoke for a different moxibustion device scheme;

[0017] Step 6: Analyze the results of different moxibustion devices and select the scheme that takes the least time to fill the fumigation chamber with moxa smoke, thereby determining the minimum number of second and third air outlets required.

[0018] As a preferred embodiment, the mating surfaces of the lower fumigation chamber and the upper fumigation chamber are fitted at an angle to prevent the leakage of flue gas.

[0019] As a preferred embodiment, an activated carbon pack for adsorbing tar and odor in the flue gas is provided between the fourth air outlet and the exhaust outlet.

[0020] As a preferred embodiment, the manifold has a structure that protrudes into the combustion chamber in the middle and is recessed around the perimeter.

[0021] As a preferred embodiment, a sealing ring is provided at the interface between the diversion plate and the upper fumigation chamber.

[0022] As a preferred embodiment, a sealing ring is provided at the contact point between the lower bottom surface of the combustion chamber and the outer shell.

[0023] As a preferred embodiment, a sealing ring is provided around the opening of the first air inlet.

[0024] The beneficial effects of this invention are:

[0025] This automatic moxibustion device features a controllable smoke concentration airway structure. By installing a roller shutter device and a motor at the exhaust port, and measuring the smoke concentration in the fumigation chamber using a smoke sensor, the device controls the motor's start and stop, thereby raising and lowering the roller shutter device and adjusting the size of the exhaust port to maintain the smoke concentration in the fumigation chamber within a certain range.

[0026] Furthermore, when designing the air outlets for upper fumigation chambers of different volumes, simulation analysis is used to determine the minimum number of air outlets required for each volume. This guides the design and manufacturing process, saving manufacturing costs and ensuring the fumigation chamber is filled with moxa smoke in the shortest possible time, thus improving the moxibustion effect. During the simulation analysis, the number of second and third air outlets with larger spans is calculated first to narrow down the scope, and then the number of second and third air outlets is optimized, thereby improving the efficiency of the simulation analysis. Attached Figure Description

[0027] Figure 1 This is an exploded view of the moxibustion device of the present invention.

[0028] Figure 2 This is a cross-sectional view of the moxibustion device of the present invention.

[0029] Figure 3 This is a cross-sectional view of the ignition device of the present invention.

[0030] Figure 4 This is a front view of the combustion chamber of the present invention.

[0031] Figure 5 This is a side view of the combustion chamber of the present invention.

[0032] Figure 6 This is a schematic diagram of the structure of the flow divider of the present invention.

[0033] Figure 7 This is a schematic diagram of the upper fumigation chamber of the present invention.

[0034] Figure 8 This is an isometric view of the upper fumigation chamber of the present invention.

[0035] Figure 9 The above is a flowchart of the design of the fumigation chamber of this invention.

[0036] In the diagram, 1-ignition device, 2-touch panel, 3-moxa stick, 4-combustion chamber, 5-battery, 6-air pump, 7-outer shell, 8-fumigation chamber, 81-upper fumigation chamber, 82-lower fumigation chamber, 83-activated carbon bag, 84-diffusion plate, 85-mounting column, 86-roller curtain device, 87-motor, 88-smoke concentration measuring device, 9-air pipe; 20-air intake device, 21-combustion chamber, 22-buffer chamber, 23-fumigation chamber, 24-exhaust channel; 30-first air inlet, 31-first air outlet, 32-second air inlet, 33-third air inlet, 34-second air outlet, 35-third air outlet, 36-exhaust port, 37-fourth air outlet, 38-fourth air inlet. Detailed Implementation

[0037] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0038] like Figure 1-8 As shown, the gas supply structure of an automatic moxibustion device with controllable smoke concentration includes an air intake device 20, a combustion chamber 21, a buffer chamber 22 formed by the upper fumigation chamber 81 and the diversion plate 84 of the moxibustion device, a fumigation chamber 23 formed by the lower fumigation chamber 82 of the moxibustion device fitting against the area of ​​the body to be moxibusted, and an exhaust channel 24 formed by the upper fumigation chamber 81 and the lower fumigation chamber 82 of the moxibustion device enclosing each other; the mating surfaces of the lower fumigation chamber 82 and the upper fumigation chamber 81 are fitted at an angle to prevent the smoke from leaking out.

[0039] like Figure 2 , 4 As shown in Figure 5, the air intake device 20 is connected to the first air intake 30 on the oblique surface of the ignition device 1 of the moxibustion device via the air outlet on the oblique surface of the touch panel 2 of the moxibustion device, and is also connected to the combustion chamber 21 via the air outlet at the ignition device 1. The combustion chamber 21 is connected to the buffer chamber 22 via the first air outlet 31 on the bottom surface of the combustion chamber 4. Several triangular abutments are provided around the inner wall of the combustion chamber 4 to prevent the moxa stick 3 from making partial contact with the inside of the combustion chamber 4, which would affect the combustion effect. A sealing ring is also provided at the contact position between the bottom surface of the combustion chamber 4 and the outer shell 7.

[0040] like Figure 2As shown, the air intake device 20 includes an air pump 6 and an air pipe 9. The air pump 6 is mounted on a bracket inside the outer casing 7 of the moxibustion device. The air pipe 9 is installed at the air outlet of the air pump 6 and passes through a groove on the touch panel 2 of the moxibustion device, connecting to the air intake on the touch panel 2. The ignition device 1 is installed in the middle of the touch panel 2. The beveled surface of the touch panel 2 matches the beveled surface of the ignition device 1, so that the air intake on the touch panel 2 connects to the first air intake 30 on the beveled surface of the ignition device 1. The greater the force on the ignition device 1, the tighter the beveled surface fits. A sealing ring is provided around the first air intake 30 to prevent gas leakage from the air intake device 20.

[0041] like Figure 2 , 6 As shown in Figure 8, the diversion plate 84 has a structure that protrudes in the middle towards the combustion chamber 21 and is recessed around the perimeter, which allows the flue gas to be fully dispersed. A sealing ring is provided at the junction of the diversion plate 84 and the upper fumigation chamber 81.

[0042] The upper fumigation chamber 81 has several waist-shaped second air outlets 34 evenly distributed around the central axis of the combustion chamber at the outer periphery of the diversion plate 84. The upper fumigation chamber 81 has several circular third air outlets 35 on the part of the upper fumigation chamber 81 facing the diversion plate 84. The buffer chamber 22 is connected to the fumigation chamber 23 through the second air inlet 32 ​​and the third air inlet 33 on the diversion plate 84 and the second air outlet 34 and the third air outlet 35 on the inner cavity of the upper fumigation chamber 81. The fumigation chamber 23 is connected to the exhaust channel 24 through the fourth air outlet 37 on the lower fumigation chamber 82. The exhaust channel 24 is connected to the outside air through the exhaust port 36 on the outer wall of the upper fumigation chamber 81. The smoke from the combustion chamber 21 flows to the fumigation chamber 23 through the second air outlet 34 and the third air outlet 35. An activated carbon pack 83 for absorbing tar and odor in the smoke is provided between the fourth air outlet 37 and the exhaust port 36.

[0043] Mounting columns 85 are respectively provided on both sides of the inner opening of the exhaust port 36 in the upper fumigation chamber 81, and a roller shutter device 86 is provided between the two mounting columns. The roller shutter device 86 is connected to the motor 87. A smoke concentration measuring device 88 is provided on the inner wall of the upper fumigation chamber 81 to measure the concentration of moxa smoke and control the rolling or unrolling action of the roller shutter device. The smoke concentration measuring device 88 monitors the concentration of moxa smoke in the fumigation chamber 23 in real time. If the concentration of moxa smoke is greater than the set value, the smoke concentration measuring device 88 sends a signal to control the motor 87 to rotate, which drives the roller shutter device 86 to retract, increase the exhaust port 36, increase the exhaust volume, and thus reduce the concentration of moxa smoke in the fumigation chamber 23. If the concentration of moxa smoke is less than the set value, the smoke concentration measuring device 88 sends a signal to control the motor 87 to rotate, which drives the roller shutter device 86 to extend, decrease the exhaust port 36, decrease the exhaust volume, and thus increase the concentration of moxa smoke in the fumigation chamber 23. The combined action of the smoke concentration measuring device 88, the motor 87, and the roller shutter device 86 can maintain the concentration of moxa smoke in the fumigation chamber 23 within a certain range, thereby improving the moxibustion effect.

[0044] The number of the second air outlet 34 and the third air outlet 35 of the upper fumigation chamber 81 is determined by the following method:

[0045] Step 1: Based on the quantity interval a (a≥4) of the second air outlet 34 and the third air outlet 35, design several moxibustion device schemes with different numbers of second air outlets 34 and third air outlets 35 in the upper fumigation chamber 81.

[0046] Step 2: Use the fluid analysis software Xflow to simulate and analyze the flow direction of moxibustion smoke for different moxibustion device schemes, including identifying the fluid domain, establishing the inlet boundary surface, setting the inlet velocity, establishing the pressure outlet, and preset the calculation time. Calculate the time required for the moxibustion smoke to fill the fumigation chamber 23. Set the outlet velocity to 0.0001m / s to fill the fumigation chamber 23 with moxibustion smoke.

[0047] Taking the moxibustion device described in this embodiment as an example, the upper fumigation chamber 81 of the moxibustion device includes 6 second air outlets 34 and 4 third air outlets 35. The parameters are set as follows: fluid domain grid is set to 0.001m; inlet boundary surface is set: velocity inlet: 0.5m / s; pressure outlet is set to 0Pa; preset calculation time is 15s.

[0048] Step 3: Sort the calculation results of different moxibustion device schemes according to the number of second air outlets 34 and third air outlets 35, calculate the required time difference between adjacent ones, and analyze all time differences based on the set time s. Among all time differences, select two moxibustion device schemes whose time difference is less than or equal to the set time s for the first time, and record the number of second air outlets 34 and third air outlets 35 of these two moxibustion device schemes.

[0049] Step 4: Based on the two moxibustion device schemes selected in Step 3, refine them by setting different numbers of second air outlets 34 of the upper fumigation chamber 81 and different numbers of third air outlets 35 of the upper fumigation chamber 81 at intervals of 1 between the two moxibustion device schemes, thereby forming a different upper fumigation chamber 81 scheme and a different moxibustion device scheme.

[0050] Step 5: Use the fluid analysis software Xflow to simulate and analyze the flow direction of moxibustion smoke for a different moxibustion device scheme;

[0051] Step 6: Analyze the results of different moxibustion devices and select the option that takes the least time to fill the fumigation chamber 23 with moxa smoke, thereby determining the minimum number of second and third air outlets 34 and 35 required.

[0052] When the moxibustion device is activated, battery 5 simultaneously powers ignition device 1 and air pump 6. Air pump 6 starts, drawing air from the outside and delivering it through air pipe 9, touch panel 2, and channels within ignition device 1 to the ignition point of ignition device 1. When the air contacts the ignition point of ignition device 1, moxa stick 3 is ignited, generating smoke in combustion chamber 21. Driven by a continuous supply of fresh air, the smoke flows downwards along the gap between combustion chamber 4 and moxa stick 3, entering buffer chamber 22 through several first air outlets 31 on the lower surface of combustion chamber 4. After entering the buffer chamber 22, the flue gas diffuses to the surroundings under the action of the diversion plate 84, and flows into the fumigation chamber 23 through the second air inlet 32 ​​and the third air inlet 33 on the diversion plate 84 and the second air outlet 34 and the third air outlet 35 on the inner cavity of the upper fumigation chamber 81, and further diffuses in the fumigation chamber 23; the flue gas in the fumigation chamber 23 enters the exhaust channel 24 through the fourth air outlet 37 on the lower fumigation chamber 82, is filtered by the activated carbon pack 83, and is then discharged to the outside through the exhaust port 36 on the outer wall of the upper fumigation chamber 81.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. An automatic moxibustion device with controllable smoke concentration has an air supply structure, comprising an air intake device, a combustion chamber located in the combustion chamber, a buffer chamber formed by the upper fumigation chamber of the moxibustion device and the diversion plate of the moxibustion device, a fumigation chamber formed by the lower fumigation chamber of the moxibustion device and the part of the human body to be moxibusted, and an exhaust channel formed by two annular grooves on the upper fumigation chamber and the lower fumigation chamber of the moxibustion device. The air intake device is connected to the first air intake on the oblique surface of the ignition device of the moxibustion device through the air outlet on the oblique surface of the touch panel of the moxibustion device, and is connected to the combustion chamber through the air outlet at the ignition device; the combustion chamber is connected to the buffer chamber through the first air outlet on the bottom surface of the combustion chamber of the moxibustion device. The air intake device includes an air pump and an air pipe. The air pump is installed on a bracket inside the outer shell of the moxibustion device. An air pipe is installed at the air outlet of the air pump. The air pipe passes through a groove on the touch panel of the moxibustion device and connects to the air inlet on the touch panel. The ignition device of the moxibustion device is installed in the middle of the touch panel. The beveled surface of the touch panel matches the beveled surface of the ignition device, so that the air inlet on the touch panel is connected to the first air inlet on the beveled surface of the ignition device. The upper fumigation chamber has several waist-shaped second air outlets evenly distributed around the central axis of the combustion chamber at the outer periphery of the diversion plate. The upper fumigation chamber has several circular third air outlets on the part facing the diversion plate. The buffer chamber is connected to the fumigation chamber through the second and third air inlets on the diversion plate and the second and third air outlets on the inner cavity of the upper fumigation chamber. The fumigation chamber is connected to the exhaust channel through the fourth air outlet on the lower fumigation chamber. The exhaust channel is connected to the outside air through the exhaust port on the outer wall of the upper fumigation chamber. The smoke from the combustion chamber flows to the fumigation chamber through the second and third air outlets. Its features are: The upper fumigation chamber has mounting columns on both sides of the exhaust port, and a roller shutter device is installed between the two mounting columns. The roller shutter device is connected to a motor. The inner wall of the upper fumigation chamber is equipped with a smoke concentration measuring device to measure the concentration of moxa smoke in order to control the rolling up or down action of the roller shutter device. The number of the second and third air outlets of the upper fumigation chamber is determined by the following method: Step 1: Based on the number interval a (a≥4) for both the second and third air outlets, design several moxibustion device schemes for upper fumigation chambers with different numbers of second and third air outlets. Step 2: Use the fluid analysis software Xflow to simulate and analyze the flow direction of moxibustion smoke for different moxibustion device schemes, including identifying the fluid domain, establishing the inlet boundary surface, setting the inlet velocity, establishing the pressure outlet, and preset the calculation time. Calculate the time required for the moxibustion smoke to fill the fumigation chamber. Set the outlet velocity to 0.0001m / s to fill the fumigation chamber with moxibustion smoke. Step 3: Sort the calculation results of different moxibustion device schemes according to the number of second and third air outlets, calculate the required time difference between adjacent ones, and analyze all time differences based on the set time s. Among all time differences, select two moxibustion device schemes whose time difference is less than or equal to the set time s for the first time, and record the number of second and third air outlets of these two moxibustion device schemes. Step 4: Based on the two moxibustion device schemes selected in Step 3, refine them by setting different numbers of second air outlets in the upper fumigation chamber with an interval of 1 between the two moxibustion device schemes, and setting different numbers of third air outlets in the upper fumigation chamber with an interval of 1 between the two moxibustion device schemes, thereby forming a different upper fumigation chamber scheme and a different moxibustion device scheme. Step 5: Use the fluid analysis software Xflow to simulate and analyze the flow direction of moxibustion smoke for a different moxibustion device scheme; Step 6: Analyze the results of different moxibustion devices and select the scheme that takes the least time to fill the fumigation chamber with moxa smoke, thereby determining the minimum number of second and third air outlets required.

2. The gas supply structure of the automatic moxibustion device with controllable smoke concentration as described in claim 1, characterized in that: The lower fumigation chamber and the upper fumigation chamber are joined at an angle to prevent the leakage of smoke.

3. The gas supply structure of the automatic moxibustion device with controllable smoke concentration as described in claim 2, characterized in that: An activated carbon pack for adsorbing tar and odor in the flue gas is provided between the fourth air outlet and the exhaust outlet.

4. The gas supply structure of the automatic moxibustion device with controllable smoke concentration as described in claim 3, characterized in that: A sealing ring is provided at the junction of the diversion plate and the upper fumigation chamber.

5. The gas supply structure of the automatic moxibustion device with controllable smoke concentration as described in claim 4, characterized in that: A sealing ring is provided at the contact point between the bottom surface of the combustion chamber and the outer shell.

6. The gas supply structure of the automatic moxibustion device with controllable smoke concentration as described in claim 5, characterized in that: A sealing ring is provided around the opening of the first air inlet.

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