Intelligent temperature control and smoke abatement moxibustion instrument and working method thereof

Abstract

The invention discloses an intelligent temperature control and smoke abatement moxibustion instrument and a working method thereof, solves the problems that in the prior art, a moxibustion instrument is large in size and not suitable for home use, and a moxibustion device small in size has safety risks and uncontrollable temperature, and has the beneficial effects that the size is moderate, and the moxibustion efficiency and safety are improved. According to the specific scheme, the intelligent temperature control and smoke abatement moxibustion instrument comprises a box body, a linear driving mechanism is arranged on one side of the box body, a cavity is formed in the other side of the box body, a moxa cone fixing plate is arranged in the cavity, the linear driving mechanism penetrates through the side wall of the cavity to be connected with the moxa cone fixing plate, the box body can be opened, the moxa cone fixing plate is provided with a plurality of open holes, and moxa cones penetrate through the open holes. The moxa cone fixing plate is provided with a plurality of clamping jaws in the annular direction of each hole, the clamping jaws incline towards the central axis direction of the holes, moxa cones are clamped through the clamping jaws, the end, close to the moxa cone fixing plate, of the box body is provided with a net face structure so that heat can be transmitted to the outer side of the box body, and the clamping jaws are arranged on the side, facing the net face structure, of the moxa cone fixing plate.

Description

Technical Field

[0001] This invention relates to the field of moxibustion device technology, and in particular to a smart temperature control and smoke elimination moxibustion device and its working method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Traditional moxibustion therapy is widely used in clinical and family healthcare, but the following prominent problems exist in its implementation: The equipment has a complex structure, including multiple independent components such as a robotic arm and a purification box. It is relatively large and more suitable for medical institutions or professional moxibustion sites. It is less flexible and portable and not suitable for home use or small clinics. There are also some small, simple moxibustion boxes that use a needle to insert into the moxa stick, allowing only one moxa stick to be used at a time. The needle is prone to misalignment and poses a certain safety risk. Although these types of moxibustion boxes are small, the heating temperature is uncontrollable and can easily become too high, causing users to stop using them because they cannot tolerate the temperature. In addition, the smoke emitted by small household moxibustion boxes contains harmful particles such as PM2.5 and volatile organic compounds, which can harm the respiratory system of the operator and the patient, and also pollute the indoor environment.

[0004] Existing smoke elimination systems use multi-layer filters to passively filter smoke, and cannot perform active filtration. Existing smoke elimination systems are mostly external purifiers that use exhaust fans and multi-layer activated carbon filters for adsorption and filtration. They require connection through pipes and are therefore separate purification systems with low integration and larger space requirements.

[0005] Existing moxibustion devices mostly use open-loop control systems, which cannot achieve real-time closed-loop temperature control, easily causing burns or insufficient therapeutic effects, and lack overheat protection mechanisms, posing safety hazards. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide an intelligent temperature-controlled and smoke-eliminating moxibustion device with a suitable size, capable of temperature regulation to prevent excessive temperature at the mesh structure, and effectively filtering smoke through a filter box in the smoke-eliminating duct.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: A smart temperature-controlled and smoke-eliminating moxibustion device includes a housing, a linear drive mechanism on one side of the housing, and a cavity on the other side of the housing. A moxa stick fixing plate is installed inside the cavity. The linear drive mechanism passes through the side wall of the cavity and connects to the moxa stick fixing plate. The housing can be opened. The moxa stick fixing plate has multiple openings through which the moxa stick passes. Multiple claws are arranged circumferentially around each opening, with the claws inclined towards the central axis of the opening to hold the moxa stick. A mesh structure is provided at one end of the housing near the moxa stick fixing plate to transfer heat to the outside of the housing. Claws are located on the side of the moxa stick fixing plate facing the mesh structure. A temperature sensor is installed at one end of the housing near the mesh structure, connected to a controller. The controller is connected to the linear drive mechanism. A smoke-eliminating duct is located at the bottom of the housing, communicating with the cavity. A filter box containing filter material is installed inside the smoke-eliminating duct.

[0008] As described above, in an intelligent temperature-controlled and smoke-eliminating moxibustion device, the smoke-eliminating duct is connected to an exhaust fan, the exhaust fan is connected to the controller, a gas concentration sensor is installed in the cavity, and the gas concentration sensor is connected to the controller. When the gas concentration sensor detects that the gas concentration in the cavity is greater than a first set value, the controller controls the exhaust fan to turn on.

[0009] As described above, in an intelligent temperature-controlled and smoke-eliminating moxibustion device, when the temperature sensor detects that the temperature at its location is greater than a second set value, the controller controls the linear drive mechanism to move away from the mesh structure until the temperature detected by the temperature sensor returns to a third set value, and the value of the second set value is greater than the value of the third set value.

[0010] In the above-described intelligent temperature-controlled and smoke-eliminating moxibustion device, the temperature sensor is installed on the outer end face of the mesh structure; The housing is equipped with a sensor bracket at the outer end face of the mesh structure. One side of the sensor bracket is fixed to the housing, and the other side is placed on the outside of the mesh structure. The temperature sensor is fastened to the sensor bracket.

[0011] As described above, an intelligent temperature-controlled and smoke-eliminating moxibustion device includes an inner heat-insulating shell inside the housing. One end of the inner heat-insulating shell is positioned close to the end face of the housing. Both the inner heat-insulating shell and the housing have air inlets. An outer heat-insulating shell is arranged circumferentially around the inner heat-insulating shell, extending beyond the inner heat-insulating shell. The portion between the inner and outer heat-insulating shells extending beyond the inner heat-insulating shell forms the cavity. The mesh structure is located at the end of the outer heat-insulating shell away from the inner heat-insulating shell. The moxibustion cover covers the outer side of the mesh structure and is detachably connected to the housing.

[0012] The moxibustion cover is connected to the box body by a threaded structure or by a snap-fit ​​mechanism.

[0013] As described above, an intelligent temperature-controlled and smoke-eliminating moxibustion device includes a first box and a second box. The cavity is provided inside the second box, and the linear drive mechanism is provided inside the first box. The first box includes a rectangular body, and a supporting step is formed at the connection between the first box and the second box. A box cover is provided on one side of the rectangular body, and the box cover is installed by means of the rectangular body and the supporting step to achieve that the box cover is snapped into the rectangular body. The first box is provided with a support ear on its outer side, which can be fixed to the bracket.

[0014] As described above, the moxibustion device with intelligent temperature control and smoke elimination has two ear plates on the moxa stick fixing plate, which are spaced apart. The linear drive mechanism is connected to the slide plate, which passes through the side wall of the cavity and enters between the two ear plates. A quick-release pin is inserted into the ear plates and the slide plate. The housing is provided with a support plate to support the slide plate. The linear drive mechanism is a lead screw and nut mechanism, which includes a lead screw and a flange nut arranged circumferentially on the lead screw. The flange nut is connected to the moxibustion fixing plate.

[0015] As described above, in an intelligent temperature-controlled and smoke-eliminating moxibustion device, the smoke-eliminating air duct is connected to the second box and is placed between the first box and the second box; The smoke elimination duct has a notch for inserting a filter box, and a limiting step is provided inside the smoke elimination duct to limit the filter box. The filter box includes an annular body, and the filter material is placed inside the annular body. The annular body is connected to a mounting plate, which is placed outside the smoke elimination duct. The mounting plate and the smoke elimination duct are detachably connected.

[0016] As described above, the intelligent temperature-controlled and smoke-eliminating moxibustion device includes activated carbon and a high-efficiency air filter arranged sequentially from the outside to the inside as filter materials.

[0017] Secondly, the present invention also provides a method for operating an intelligent temperature control and smoke elimination moxibustion device, comprising the following: Open the box, support the lit moxa stick through the opening of the moxa stick fixing plate, and hold the moxa stick with the claws; The controller controls the linear drive mechanism to move the moxa stick fixing plate toward the mesh structure, and the heat generated by the burning moxa stick is transferred to the outside of the box through the mesh structure. During the burning of the moxa stick, the generated smoke passes through the side wall of the cavity and enters the smoke elimination duct. After being filtered by the filter material in the filter box, it is discharged.

[0018] The beneficial effects of the present invention are as follows: 1) The moxibustion device provided by this invention has a reasonable structure. A linear drive mechanism is set on one side of the box, and a cavity is set on the other side. A moxa stick fixing plate is set in the cavity. The moxa stick fixing plate clamps the moxa stick with claws. Compared with the existing pin fixing method, it can ensure stable support for the moxa stick and greatly improve the safety factor. It also facilitates the quick replacement of the moxa stick. A temperature sensor is set near the mesh structure of the box. The temperature sensor detects the temperature and sends it to the controller. The controller controls the action of the linear drive mechanism. It can not only control the linear drive mechanism to move the moxa stick toward the mesh structure to transfer heat and achieve the moxibustion effect in the initial stage, but also cooperate with the temperature sensor to realize closed-loop control. That is, when the temperature is too high, the linear drive mechanism is controlled to move backward to reduce the temperature of the mesh structure and avoid burns and other problems.

[0019] 2) In this invention, the smoke-eliminating duct is connected to the smoke exhaust fan. When the gas concentration sensor detects that the temperature at its location is greater than the first set value, the controller controls the smoke exhaust fan to turn on. That is, after the linear drive mechanism has been working for a set time, the gas concentration sensor detects the gas concentration in the cavity. Once it exceeds the first set value, the controller controls the smoke exhaust fan to turn on in time to exhaust smoke. When the temperature sensor detects that the temperature at its location is greater than the second set value, the controller controls the linear drive mechanism to move in the opposite direction to reduce the temperature at the mesh structure to the third set value, which is a temperature that is acceptable to the human body.

[0020] 3) In this invention, the inner and outer heat insulation shells form a cavity inside the box to house the moxibustion column fixing plate, forming a heat accumulation cavity, which is conducive to the rapid heating and heat preservation of the gas temperature inside the cavity. The box structure is reasonably set up, with a first box and a second box. The first box is used to house the linear drive mechanism, and the second box is used to house the cavity, forming a highly integrated integrated box structure. The size is small, which is a compact device and more suitable for home or personal scenarios.

[0021] 4) This invention can collect the temperature at the mesh structure through a temperature sensor and send it to the controller. The controller adjusts the displacement of the linear drive in real time, achieving precise temperature control with a steady-state error of less than ±1℃ in the range of 30℃~80℃. It also has dynamic response and automatic over-temperature protection functions. The gas concentration sensor realizes intelligent linkage between concentration detection and exhaust fan speed. Combined with activated carbon and high-efficiency air filter composite filter element, it achieves low noise operation while achieving high-efficiency filtration. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] Figure 1This is a schematic diagram of an intelligent temperature-controlled and smoke-eliminating moxibustion device according to one or more embodiments of the present invention.

[0024] Figure 2 This is a cross-sectional view of an intelligent temperature-controlled and smoke-eliminating moxibustion device according to one or more embodiments of the present invention.

[0025] Figure 3 This is a front cross-sectional view of an intelligent temperature control and smoke elimination moxibustion device according to one or more embodiments of the present invention (where the filter box is only the lower half).

[0026] Figure 4 This is a schematic diagram of the rear side of an intelligent temperature-controlled and smoke-eliminating moxibustion device according to one or more embodiments of the present invention.

[0027] Figure 5 This is a cross-sectional schematic diagram of the smoke-eliminating air duct in an intelligent temperature-controlled and smoke-eliminating moxibustion device according to one or more embodiments of the present invention.

[0028] Figure 6 This is a schematic diagram of a model established during the simulation analysis of an intelligent temperature control and smoke elimination moxibustion device according to one or more embodiments of the present invention.

[0029] Figure 7 This is a schematic diagram of the angular velocity curve obtained from the simulation analysis; Figure 8 This is a schematic diagram of the displacement curve obtained from the simulation analysis; Figure 9 This is a schematic diagram of the temperature curve obtained from the simulation analysis; The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0030] The components are: 1. Housing, 2. Mesh structure, 3. Moxibustion cover, 4. Sensor bracket, 5. DC geared motor, 6. Lead screw, 7. Flange nut, 8. Bearing seat, 9. Bearing, 10. Ear plate, 11. Inner heat insulation shell, 12. Outer heat insulation shell, 13. Housing cover, 14. Flange nut seat, 15. Quick release pin, 16. Moxibustion column fixing plate, 17. Motor housing cover, 18. Smoke elimination duct, 19. Filter box, 20. Slide plate, 21. Claw, 22. Opening, 23. First box, 24. Second box, 25. Support ear, 26. Limiting step, 27. Mounting plate, 28. Air inlet. Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. As described in the background section, existing moxibustion devices are too bulky for home use, while smaller moxibustion devices pose safety risks and have uncontrollable temperatures. To address these technical issues, this invention proposes a moxibustion device with intelligent temperature control and smoke elimination.

[0033] Example 1 In a typical embodiment of the present invention, reference is made to Figure 1 As shown, an intelligent temperature-controlled and smoke-eliminating moxibustion device includes a housing 1. A linear drive mechanism is installed on one side of the housing 1, and a cavity is installed on the other side of the housing 1. A moxa stick fixing plate 16 is installed inside the cavity. The linear drive mechanism passes through the side wall of the cavity and connects to the moxa stick fixing plate 16. The housing 1 can be opened. The moxa stick fixing plate 16 has multiple openings through which the moxa stick passes. The size of the openings is adapted to the diameter of the moxa stick. The moxa stick fixing plate 16 has multiple claws 21 arranged circumferentially around each opening, with the claws 21 facing the center of the opening. The axis is inclined and the moxa stick is clamped by the claw 21. A mesh structure 2 is set at one end of the box 1 near the moxa stick fixing plate 16 to transfer heat to the outside of the box. The mesh structure is a metal mesh. A temperature sensor is set at one end of the box 1 near the mesh structure. The temperature sensor is connected to the controller. The controller is connected to the linear drive mechanism. A smoke elimination duct 18 is set at the bottom of the box 1. The smoke elimination duct 18 is connected to the cavity. A filter box 19 is set inside the smoke elimination duct 18. Filter material is set in the filter box 19.

[0034] It is easy to understand that different moxa stick fixing plates 16 have different openings. By replacing different moxa stick fixing plates, they can be adapted to moxa sticks of different diameters. In some examples, a threaded hole is set in the center of the moxa stick fixing plate 16. Similarly, a threaded hole is also set on one side of the box. The threaded rod passes through the two threaded holes. When the power is off, the position of the moxa stick fixing plate 16 can be manually adjusted by rotating the threaded rod.

[0035] refer to Figure 2As shown, an inner heat insulation shell 11 is installed inside the box 1. The inner heat insulation shell 11 is a cylindrical structure with an open side. One end of the inner heat insulation shell 11 is located near the end face of the box 1. Air inlets 28 are provided at both the end of the inner heat insulation shell 11 away from the mesh structure 2 and the end of the box 1 away from the mesh structure 2. Connecting holes are provided on both sides of the air inlets 28 for connecting the inner heat insulation shell 11 to the box 1. Air is vented through the air inlets 28 to facilitate the combustion of the moxa stick inside. An outer heat insulation shell 12 is arranged circumferentially around the inner heat insulation shell 11. The outer heat insulation shell 12 extends beyond the inner heat insulation shell 11. The portion between the inner heat insulation shell 11 and the outer heat insulation shell 12 that extends beyond the inner heat insulation shell 11 forms a cavity. The second box 24 is located near the moxibustion cover. The wall thickness is increased at three points to ensure structural strength. The outer heat insulation shell 12 is bonded to the second box 24 or the outer heat insulation shell 12 is only in contact with the increased wall thickness of the second box 24. The two heat insulation shells effectively insulate the cavity, which is conducive to the rapid temperature rise in the cavity. Moreover, the two heat insulation shells ensure a certain degree of airtightness of the cavity, so that the flue gas moves towards the smoke elimination duct 18 and plays a certain role in heat insulation, avoiding high temperature damage to the linear drive mechanism. The mesh structure 2 is located at the end of the outer heat insulation shell 12 away from the inner heat insulation shell 11. The moxibustion cover 3 covers the outside of the mesh structure and is detachably connected to the box 1. The inner diameter of the moxibustion cover 3 is smaller than the outer diameter of the mesh structure 2 to ensure that the moxibustion cover 3 limits the mesh structure 2.

[0036] Specifically, the moxibustion cover 3 and the box 1 are connected by a threaded structure or by a snap-fit ​​method.

[0037] refer to Figure 2 and Figure 3 As shown, the moxa stick fixing plate 16 has a circular structure, and the outer diameter of the moxa stick fixing plate 16 is smaller than the inner diameter of the cavity to ensure the linear movement of the moxa stick fixing plate 16. The moxa stick fixing plate 16 is provided with 3 openings, which are evenly distributed along the center of the moxa stick fixing plate 16. The moxa stick fixing plate 16 can support 3 moxa sticks at the same time. Compared with small moxibustion devices that support a single moxa stick, the number of moxa sticks that can be burned at one time is increased, which improves the efficiency of moxibustion in a short time. Moreover, the number of openings provided on the moxa stick fixing plate can be adjusted according to specific circumstances.

[0038] In this embodiment, five or six claws are provided around the periphery of each opening 22. The claws 21 are spaced apart from each other. The claws 21 are all located on the side of the moxa stick fixing plate 16 facing the mesh structure 2. The claws 21 are all inclined towards the central axis of the opening 22. The claws 21 and the opening 22 form a tapered hole with a gradually increasing inner diameter. This makes it convenient to insert the moxa stick into the tapered hole after opening the moxibustion cover 3 of the box 1.

[0039] refer to Figure 2 and Figure 4As shown, the housing 1 includes a first housing 23 and a second housing 24. The second housing 24 has a cavity, and the first housing 23 has a linear drive mechanism. The first housing 23 includes a rectangular body. The first housing 23 and the second housing 24 are connected to form an integral structure. A support step is formed at the connection between the first housing 23 and the second housing 24. A housing cover 13 is provided on one side of the rectangular body. The housing cover 13 has a protrusion on the side facing the rectangular body. The housing cover 13 is installed by the rectangular body and the support step so that the protrusion of the housing cover is inserted into the rectangular body. The housing cover 25 can be opened relative to the rectangular body to enable maintenance of the internal linear drive mechanism, such as adding lubricating oil. The height of the first housing is less than the height of the second housing. It should be noted that the outer side of the first box 23 is provided with support ears 25. There are two support ears 25. The support ears are located on the side of the first box 23 away from the second box 24. The support ears 25 are provided with through holes to facilitate fixing to the bracket. The bracket can be fixed to the ground or tabletop, so that the mesh structure 2 of the box is set downward. In this way, when the staff lies on the hospital bed, the mesh structure 2 is close to the human body. In some examples, the support ears 25 are connected to the robot's robotic arm, so that the robot can drive the moxibustion device to have a larger range of motion.

[0040] refer to Figure 2 and Figure 3 As shown, the moxibustion column fixing plate 16 is provided with two ear plates 10, which are spaced apart. The linear drive mechanism is connected to the slide plate 20. The slide plate 20 passes through the side wall of the cavity and enters between the two ear plates. The quick-release pin 15 is inserted into the ear plate 10 and the slide plate 20. The side wall of the first box is provided with a through hole for the slide plate 20 to pass through. The length direction of the through hole is parallel to the axis of the lead screw 6. A support plate is provided at the through hole to support the slide plate 20. The support plate is set towards the inside of the first box. The quick-release pin 15 includes a pin, and a support ring is provided at one end of the pin. The inner heat insulation shell 11 and the outer heat insulation shell 12 are both provided with elongated holes for the slide plate 20 to pass through. The width of the elongated holes is slightly larger than the thickness of the slide plate 20, as long as it can ensure the movement of the slide plate 20.

[0041] In this embodiment, the linear drive mechanism is a lead screw and nut mechanism, which includes a lead screw 6. The two ends of the lead screw 6 are supported by a first housing 23. Bearing seats 8 are respectively set at both ends inside the first housing 23, and the bearing seats support bearings 9. The lead screw 6 passes through the bearings 9. One end of the lead screw 6 passes through the first housing 23 and is connected to the linear reduction motor 5. The linear reduction motor 5 is covered by a motor housing cover 17, which is fastened to the outside of the first housing 23 by screws. A flange nut 7 is circumferentially set on the lead screw 6. The flange nut 7 is connected to a flange nut seat 14, which is connected to a sliding plate 20. The sliding plate 20 passes through the through hole in the side wall of the first housing 23, the outer heat insulation shell 12, and the inner heat insulation shell 11, and is connected to the moxibustion fixing plate 16 through a quick-release pin 15. By adopting a "motor-lead screw" mechanical transmission mechanism, the heat radiation intensity is dynamically controlled by directly and accurately adjusting the physical distance between the moxa stick and the moxibustion surface of the human body, thereby achieving temperature regulation. This method has a more direct response and lays a physical foundation for achieving high-precision closed-loop control.

[0042] refer to Figure 3 and Figure 4 As shown, the smoke exhaust duct 18 includes a housing, which is rectangular in shape. One side of the housing is open and communicates with the second box. The housing is placed between the first box 23 and the second box 24. It should be noted that the smoke exhaust duct 18 is connected to the smoke exhaust fan, which is connected to the controller. A gas concentration sensor is installed inside the cavity and is connected to the controller. When the gas concentration sensor detects that the gas concentration inside the cavity is greater than a first set value, the controller controls the smoke exhaust fan to turn on. The gas concentration sensor can be a smoke sensor. The smoke sensor detects the gas concentration inside the cavity, and once it exceeds the first set value, it controls the smoke exhaust fan to turn on in time. Moreover, the power source for the smoke exhaust fan is a continuously variable speed motor (brushless motor), which enables concentration detection. The intelligent linkage of the fan speed is controlled by a single-chip microcomputer. After the exhaust fan is turned on, if the gas concentration in the cavity continues to increase, the speed of the exhaust fan can be further increased. When the gas concentration in the cavity decreases, the speed of the exhaust fan is reduced by the controller.

[0043] The controller stores the motor speed transfer function. :

[0044] in, Let R be the armature voltage, s be a variable in the complex field, representing the complex frequency field, and R be the frequency. a L is the armature resistance. a For inductance, K e K is the back electromotive force constant. t The torque constant is B represents the motor speed. t For damping, For system inertia;

[0045] B is the coefficient of friction, n is the gear ratio of the motor and gearbox, P is the lead screw pitch, and b r This refers to the damping coefficient of the slide rail;

[0046] Among them, J m Let m be the rotor inertia of the motor. 总 The sum of the masses of the slider, the moxibustion stick fixing plate, and the moxibustion stick.

[0047] The relationship between the temperature T at the outlet of the moxibustion device and the distance d between the moxa stick and the human body surface is as follows:

[0048] T a For ambient temperature, K th Let Q be the thermal radiation coefficient, and Q be the thermal power of the radiant column. ; Linearize the area around the working point d0:

[0049] To simulate skin temperature response, a first-order inertial hysteresis system is introduced, and the transfer function is simplified to:

[0050] Where τ is the thermal response time coefficient.

[0051] System transfer function of moxibustion device

[0052] Right now:

[0053] Thus, the controller adjusts the position d0 of the working point (moxibustion fixing plate) using the above relationship.

[0054] In addition, when the temperature sensor detects that the temperature at its location is greater than the second set value, the controller controls the linear drive mechanism to move away from the mesh structure 2 until the temperature detected by the temperature sensor returns to the third set value, and the value of the second set value is greater than the value of the third set value.

[0055] In this embodiment, the temperature sensor is installed on the outer end face of the mesh structure 2; Specifically, a sensor bracket 4 is set on the outside of the moxibustion cover 3. The sensor bracket 4 is a long strip structure. Threaded holes are set on both sides of the sensor bracket 4. The setting of one threaded hole allows one side of the sensor bracket 4 to be fixed to the moxibustion cover 3, and the other side of the sensor bracket 4 is placed on the outside of the mesh structure 2. The temperature sensor is fastened to the sensor bracket 4 by bolts through the threaded hole on the other side.

[0056] In addition, one end of the smoke-eliminating duct housing is closed, and the other end is connected to the smoke exhaust fan. A notch is provided on the side of the smoke-eliminating duct housing to accommodate the filter box 19. (See reference...) Figure 5 As shown, a limiting step 26 is provided inside the smoke elimination duct to limit the filter box 19. The limiting step 26 is located away from the closed end of the smoke elimination duct housing. The filter box 19 includes an annular body. The width of the notch is greater than the diameter of the annular body so that the annular body can be inserted into the smoke elimination duct housing. Filter material is provided inside the annular body. The annular body is connected to the mounting plate. The mounting plate 27 is placed outside the smoke elimination duct. The mounting plate 27 is detachably connected to the smoke elimination duct. The two sides of the mounting plate are provided beyond the two ends of the annular body. The two sides of the mounting plate 27 are connected to the smoke elimination duct housing by bolts.

[0057] In this embodiment, the filter material is a multi-layer composite filter material, including a pre-filter layer, a high-efficiency filter layer, and activated carbon arranged sequentially from the outside to the inside. The pre-filter layer is a filter screen, and the high-efficiency filter layer is a high-efficiency air filter (HEPA). Because the annular body has an annular structure, the filter material also has an annular structure. Thus, as the flue gas flows from the inside of the cavity to the smoke elimination duct, it first passes through the pre-filter layer, which filters large molecular particles, and then passes through the HEPA filter. The HEPA filter is mainly used to capture particulate dust and various suspended matter larger than 0.5μm, which can filter harmful particulate matter in the flue gas. The activated carbon adsorbs volatile organic compounds in the flue gas, preventing the exhaust flue gas from being too pungent and preventing harmful particles in the exhaust flue gas from entering the indoor environment.

[0058] It should be noted that the smoke elimination duct is located at the connection between the first and second boxes, essentially integrated into the moxibustion device itself, eliminating the need for external pipes. A filter box is installed inside the smoke elimination duct, and the filter material within the box filters the smoke. The overall system occupies minimal space and has a high degree of integration. A smoke sensor detects the smoke, and the exhaust fan, combined with a HEPA + activated carbon composite filter, achieves efficient filtration. The filter box can be quickly replaced. The entire system forms an active intelligent smoke elimination system with a smoke sensor as the detection front end and a controller as the control core. It can monitor smoke concentration in real time and automatically drive the exhaust fan and linear drive mechanism, preventing burns caused by excessively high temperatures at the mesh structure.

[0059] Example 2 This embodiment provides a working method for an intelligent temperature control and smoke elimination moxibustion device, including the following: In the initial state, the linear drive mechanism moves the moxa stick fixing plate 16 to a position close to the moxibustion cover 3, making it convenient to remove the moxibustion cover 3 to support the moxa stick. Open the moxibustion cover, support the lit moxa stick through the opening of the moxa stick fixing plate, and hold the moxa stick with the claw 21; The controller controls the linear drive mechanism to move the moxa stick fixing plate 16 toward the mesh structure 2, and the heat generated by the burning moxa stick is transferred to the outside of the box 1 through the mesh structure 2. During the burning of the moxa stick, when the gas concentration sensor detects that the gas concentration in the cavity is greater than the first set value, the controller controls the exhaust fan to turn on, and the generated smoke passes through the side wall of the cavity and enters the smoke elimination duct. After being filtered by the filter material in the filter box 19, it is discharged. When the temperature sensor detects that the temperature at its location is greater than the second set value, the controller controls the linear drive mechanism to move away from the mesh structure 2 until the temperature detected by the temperature sensor returns to the third set value, so as to reasonably control the distance between the moxibustion stick and the mesh structure 2 and avoid the user from being burned due to excessively high temperature at the mesh structure 2.

[0060] Based on the existing simulation platform Matlab Simulink, a simulation platform for an intelligent temperature-controlled and smoke-eliminating moxibustion device was built. The closed-loop system model is as follows: Figure 6 As shown, the initial conditions are set as follows: Three working scenarios are set: Scenario 1: target temperature 80℃, ambient temperature 30℃; Scenario 2: target temperature 60℃, ambient temperature 30℃; Scenario 3: target temperature 60℃, ambient temperature 15℃. The reference distance of the working point d0 = 0.05m. The PID parameter is adjusted to K... p =0.1, K i =0.02, K d =0.01, and the curves of angular velocity, displacement, and temperature changing with time were obtained for three different scenarios. See the schematic diagram of the angular velocity curve for reference. Figure 7 As shown in the schematic diagram of the displacement curve, please refer to... Figure 8 As shown in the schematic diagram of the temperature curve, please refer to... Figure 9 As shown, the temperature at the outlet of the moxibustion device can be adjusted over time to ensure that the temperature at the outlet does not continue to rise.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A moxibustion device with intelligent temperature control and smoke elimination, characterized in that, The device includes a linear drive mechanism on one side of the housing and a cavity on the other side. A moxa stick fixing plate is installed inside the cavity. The linear drive mechanism passes through the side wall of the cavity and connects to the moxa stick fixing plate. The housing can be opened. The moxa stick fixing plate has multiple openings through which the moxa stick passes. Multiple claws are arranged circumferentially around each opening, tilted towards the central axis of the opening to hold the moxa stick. A mesh structure is installed at the end of the housing near the moxa stick fixing plate to transfer heat to the outside of the housing. Claws are located on the side of the moxa stick fixing plate facing the mesh structure. A temperature sensor is installed at the end of the housing near the mesh structure, connected to a controller, which in turn is connected to the linear drive mechanism. A smoke-eliminating duct is located at the bottom of the housing, communicating with the cavity. A filter box containing filter material is installed inside the smoke-eliminating duct.

2. The moxibustion device with intelligent temperature control and smoke elimination according to claim 1, characterized in that, The smoke exhaust duct is connected to the smoke exhaust fan, which is connected to the controller. A gas concentration sensor is installed in the cavity and connected to the controller. When the gas concentration sensor detects that the gas concentration in the cavity is greater than a first set value, the controller controls the smoke exhaust fan to turn on.

3. The moxibustion device with intelligent temperature control and smoke elimination according to claim 2, characterized in that, When the temperature sensor detects that the temperature at its location is greater than the second set value, the controller controls the linear drive mechanism to move away from the mesh structure until the temperature detected by the temperature sensor returns to the third set value, and the value of the second set value is greater than the value of the third set value.

4. The moxibustion device with intelligent temperature control and smoke elimination according to claim 1, characterized in that, The temperature sensor is mounted on the outer end face of the mesh structure; The housing is equipped with a sensor bracket at the outer end face of the mesh structure. One side of the sensor bracket is fixed to the housing, and the other side is placed on the outside of the mesh structure. The temperature sensor is fastened to the sensor bracket.

5. The moxibustion device with intelligent temperature control and smoke elimination according to claim 1, characterized in that, The box is equipped with an inner heat insulation shell, one end of which is located near the end face of the box. Both the inner heat insulation shell and the box are provided with air inlets. An outer heat insulation shell is arranged circumferentially around the inner heat insulation shell and extends beyond the inner heat insulation shell. The portion between the inner heat insulation shell and the outer heat insulation shell that extends beyond the inner heat insulation shell forms the cavity. The mesh structure is located at the end of the outer heat insulation shell away from the inner heat insulation shell. The moxibustion cover covers the outer side of the mesh structure and is detachably connected to the box. The moxibustion cover is connected to the box body by a threaded structure or by a snap-fit ​​mechanism.

6. The moxibustion device with intelligent temperature control and smoke elimination according to claim 1, characterized in that, The box includes a first box and a second box. The cavity is provided inside the second box, and the linear drive mechanism is provided inside the first box. The first box includes a rectangular body. A supporting step is formed at the connection between the first box and the second box. A box cover is provided on one side of the rectangular body. The box cover is installed by the rectangular body and the supporting step to make the box cover snap into the rectangular body. The first box is provided with a support ear on its outer side, which can be fixed to the bracket.

7. The moxibustion device with intelligent temperature control and smoke elimination according to claim 1, characterized in that, The moxibustion column fixing plate is provided with two ear plates, which are spaced apart. The linear drive mechanism is connected to the slide plate. The slide plate passes through the side wall of the cavity and enters between the two ear plates. A quick-release pin is inserted into the ear plates and the slide plate. The box is provided with a support plate to support the slide plate. The linear drive mechanism is a lead screw and nut mechanism, which includes a lead screw and a flange nut arranged circumferentially on the lead screw. The flange nut is connected to the moxibustion fixing plate.

8. The moxibustion device with intelligent temperature control and smoke elimination according to claim 6, characterized in that, The smoke exhaust duct is connected to the second box, and the smoke exhaust duct is located between the first box and the second box; The smoke elimination duct has a notch for inserting a filter box, and a limiting step is provided inside the smoke elimination duct to limit the filter box. The filter box includes an annular body, and the filter material is placed inside the annular body. The annular body is connected to a mounting plate, which is placed outside the smoke elimination duct. The mounting plate and the smoke elimination duct are detachably connected.

9. The moxibustion device with intelligent temperature control and smoke elimination according to claim 1, characterized in that, The filter material includes activated carbon and a high-efficiency air filter arranged sequentially from the outside to the inside.

10. The working method of an intelligent temperature-controlled and smoke-eliminating moxibustion device according to any one of claims 1-9, characterized in that, Includes the following: Open the box, support the lit moxa stick through the opening of the moxa stick fixing plate, and hold the moxa stick with the claws; The controller controls the linear drive mechanism to move the moxa stick fixing plate toward the mesh structure, and the heat generated by the burning moxa stick is transferred to the outside of the box through the mesh structure. During the burning of the moxa stick, the generated smoke passes through the side wall of the cavity and enters the smoke elimination duct. After being filtered by the filter material in the filter box, it is discharged.

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