Moxibustion head shell and moxibustion head assembly of smoke purification moxibustion instrument

Abstract

The moxibustion head shell of the smoke purification moxibustion instrument comprises an inner shell, an outer shell and a connecting plate connected between the inner shell and the outer shell, a moxibustion material combustion chamber, a moxa smoke primary filtering chamber and a secondary filtering chamber are sequentially arranged in an inner cavity of the inner shell from bottom to top, and a backflow chamber is defined between the outer shell and the inner shell; the top of the inner shell is provided with an extraction opening, the lower end of the inner shell is provided with an air inlet, and the lower end of the outer shell is provided with an air vent; the outer side wall of the flow dividing piece is provided with an upper flow guiding face used for guiding airflow into the air inlet and a lower flow guiding face used for guiding airflow out of the air vent. The utility model further discloses a moxibustion head assembly of the smoke purifying moxibustion instrument. The moxibustion head assembly comprises the moxibustion head shell, a primary smoke filtering block, a secondary smoke filtering block and an air exhaust fan. According to the moxibustion instrument, airflow turbulence at the air vent is reduced through the flow dividing piece, it is guaranteed that smoke circulation is fully purified, the influence of the external environment on moxibustion material combustion is avoided, and the stability of smoke purification and moxibustion temperature control of the moxibustion instrument can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of physical therapy devices, and in particular relates to a moxibustion head shell and a moxibustion head assembly of a smoke-free moxibustion instrument. Background Art

[0002] While using the gentle heat and light radiation of the moxibustion fire to penetrate deep into the acupuncture points, moxibustion also exerts the pharmacological effects of the aromatic warming effect of moxa leaves, thereby achieving the effects of dredging the meridians, promoting the circulation of qi and blood and metabolism, adjusting the balance of yin and yang in the human body, and preventing and treating diseases. In the traditional moxibustion operation process, moxibustion therapy usually relies on others to perform the moxibustion, which is time-consuming and labor-intensive, and the operation varies greatly from person to person, making it difficult to quantify the standards; at the same time, the control of the moxibustion temperature is poor, and there are safety hazards such as scalds and burns. The higher concentration of moxa smoke also increases the risk of respiratory diseases for both the moxibustion practitioner and the moxibustion recipient.

[0003] At present, moxibustion instruments use mechanical arms or clamps to fix moxa sticks, which can free the hands of the moxibustion practitioner, and at the same time use a wind system to reduce the harm to the body caused by inhaling moxa smoke. The patent with publication number CN214969017U discloses an open flame internal circulation smoke filter type moxibustion instrument, including an adjustable bracket and a moxibustion instrument body, the moxibustion instrument body is provided with a lithium battery and a control circuit, the moxibustion instrument body includes a shell, a front cover, a fan cavity and a top cover, the fan cavity is provided with a turbine fan, the interior of the shell is provided with a combustion chamber, a cylindrical composite filter element is provided between the combustion chamber and the fan cavity, and a moxa stick box is provided at the lower end of the combustion chamber. The moxibustion device realizes internal circulation filtration of moxibustion smoke by setting a circulation channel, thereby improving the filtration effect of moxibustion smoke; however, the moxibustion device is connected to the outside world only through the lower port of the combustion chamber. Under the suction action of the turbine fan, oxygen for maintaining the combustion of the moxa stick enters the port, and filtered moxa smoke escapes, and the air flow is in a turbulent state; when the environment in which the outer shell is located changes, the flow direction of the outside air at the lower port of the combustion chamber changes immediately. Even if the turbine fan is under the same wind speed control, the amount of oxygen entering and the amount of moxa smoke escaping will also change accordingly. The moxa smoke may not be fully filtered and directly discharged. At the same time, the instability of the amount of oxygen entering directly affects the combustion degree of the moxa stick, causing the moxibustion temperature to change and be difficult to control.

[0004] Therefore, although moxibustion instruments with automated operation have been widely developed and applied, and moxibustion instruments involving internal circulation smoke filtration have emerged in an endless stream, the stability of smoke purification and moxibustion temperature control of this type of moxibustion instrument still needs to be improved. Utility Model Content

[0005] Based on the deficiencies of the prior art, the purpose of the utility model is to provide a moxibustion head shell of a smoke-purifying moxibustion instrument, which utilizes an inner and outer double-layer shell structure to form a moxibustion material combustion chamber, a moxa smoke primary filtration chamber and a secondary filtration chamber in the inner shell, and a reflux chamber between the inner shell and the outer shell, and by arranging a diverter between the air inlet at the bottom of the inner shell and the air vent at the bottom of the outer shell, a guiding effect is exerted on the inlet, outlet and reflux gases at the vent, thereby reducing the airflow turbulence here and helping to improve the stability of smoke reflux and moxibustion temperature control.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A moxibustion head shell of a smoke-purifying moxibustion instrument comprises an inner shell, an outer shell and a connecting plate connected between the inner shell and the outer shell, the inner cavity of the inner shell is provided with a moxibustion material combustion chamber, a moxa smoke primary filtration chamber and a secondary filtration chamber in sequence from bottom to top, and the outer shell and the inner shell are enclosed to form a reflux chamber; an air suction port is provided at the top of the inner shell, an air inlet is provided at the lower end of the inner shell, an air vent is provided at the lower end of the outer shell, and the air vent is located directly below the air inlet; a diverter is installed at the air vent, and the diverter is located between the air vent and the air inlet, and the outer side wall of the diverter has an upper guide surface for introducing airflow into the air inlet and a lower guide surface for guiding airflow to the vent.

[0008] In order to utilize the diverter to produce a diverting and guiding effect on the inlet, outlet and return flow gases at the vent, the diverter includes a ring body coaxially arranged with the vent, the outer diameter of the upper port of the ring body is smaller than the inner diameter of the air inlet, the outer diameter of the lower port of the ring body is smaller than the inner diameter of the vent, and the outer diameter of the ring body at the junction of the upper guide surface and the lower guide surface is not smaller than the inner diameter of the air inlet.

[0009] Preferably, the upper guide surface and the lower guide surface are both smooth annular arc surfaces; more preferably, the annular arc surface adopts an inwardly concave annular arc surface, and in the longitudinal section of the annular arc surface, the central angles corresponding to the upper guide surface and the lower guide surface are both 90°, that is, the top of the upper guide surface and the bottom of the lower guide surface are both tangent to the vertical plane, and the bottom of the upper guide surface and the top of the lower guide surface are both tangent to the horizontal plane.

[0010] In order to facilitate orderly reflux of the airflow entering the reflux chamber, the inner top of the shell is gradually expanded; more preferably, the inner top of the shell is spherical.

[0011] Preferably, a mounting frame for fixing the moxibustion material is provided in the inner shell so that the position of the moxibustion material in the moxibustion material combustion chamber remains stable.

[0012] A moxibustion head assembly of a smoke-purifying moxibustion instrument comprises the above-mentioned moxibustion head shell, a primary smoke filter block is provided in the moxa smoke primary filter chamber, a secondary smoke filter block is filled in the secondary filter chamber, and an exhaust fan is installed at the exhaust port.

[0013] In order to facilitate the stable installation of moxibustion materials, the mounting frame includes an upper frame and a lower frame arranged at a vertical distance. A support is installed on the lower side of the upper frame. The lower end of the support is connected to the moxibustion materials. The lower end of the moxibustion materials is abutted against the lower frame. The primary smoke filter block is mounted on the support to facilitate preliminary filtration of high-temperature smoke generated by the combustion of the moxibustion materials.

[0014] In order to ensure that the burning surface of the moxibustion material is always located at the bottom surface of the lower frame, the support member includes a compression spring, a lower cylinder, an upper cylinder and a connecting cylinder which are sequentially arranged from the inside to the outside, the upper end of the lower cylinder is open, and the lower end of the upper cylinder is open, the bottom of the compression spring is in contact with the inner bottom surface of the lower cylinder, and the top of the compression spring is in contact with the inner top surface of the upper cylinder; the bottom of the lower cylinder is in contact with the top surface of the moxibustion material, the top of the upper cylinder is installed on the upper frame, the bottom of the connecting cylinder is inserted into the moxibustion material, and the primary smoke filter block is mounted on the upper part of the connecting cylinder.

[0015] Preferably, an external threaded protrusion is provided at the top of the outer side wall of the lower cylinder, and an internal threaded protrusion is provided at the bottom of the inner side wall of the upper cylinder, and the external threaded protrusion is adapted to the thread on the internal threaded protrusion, so that the lower cylinder can be screwed into the upper cylinder through the external threaded protrusion, and the external threaded protrusion and the internal threaded protrusion can play a role in limiting the upper and lower ends to prevent the lower cylinder from slipping out.

[0016] In order to realize intelligent control, the moxibustion head assembly of the smoke-free moxibustion instrument also includes a distance sensor and a temperature sensor. The distance sensor is used to detect the distance between the moxibustion head assembly and the person being moxibustioned, and the temperature sensor is used to sense the body surface temperature of the moxibustion treatment area of ​​the person being moxibustioned.

[0017] The moxibustion head shell described in the utility model forms an inner and outer double-layer structure through an inner shell and an outer shell, a moxibustion material combustion chamber, a moxa smoke primary filtration chamber and a secondary filtration chamber are formed in the inner shell, and a reflux chamber is formed between the inner shell and the outer shell; through the air vent, air inlet and air exhaust port arranged in sequence from bottom to top, and a diverter is arranged between the air inlet and the vent, under the guiding action of the diverter, the downward airflow at the bottom of the reflux chamber is diverted, one part enters the inner shell from the air inlet along the upper guide surface, and the other part is discharged from the vent along the lower guide surface; at the same time, under the blocking action of the diverter, the vent area located directly below the lower end of the diverter is the air inlet area, and the area where the vent is located at the outer edge of the air inlet area is the air outlet area, which reduces the air flow turbulence at the vent, ensures that the smoke reflux circulation is fully purified, and also contributes to the stability of the air intake, so that the combustion of the moxibustion material remains stable, avoids the influence of the external environment on the combustion degree of the moxibustion material, and contributes to the stability of the smoke purification and moxibustion temperature control of the moxibustion instrument.

[0018] The moxibustion head assembly of the utility model ensures the stable installation of the moxibustion materials by arranging a support for fixing the moxibustion materials between the upper frame and the lower frame, and makes the burning surface of the moxibustion materials always located on the bottom surface of the lower frame, which helps to keep the moxibustion temperature stable; an exhaust fan is arranged at the exhaust port to provide upward axial wind force for the airflow in the inner cavity of the inner shell; a high-temperature resistant primary smoke filter block is arranged to provide primary filtration for the high-temperature smoke generated by the combustion of the moxibustion materials and filter out some granular smoke; and a secondary smoke filter block with good filtering effect is arranged to filter and purify the smoke again, thereby ensuring that the gas discharged from the vent is smokeless and odorless. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the moxibustion head shell described in Example 1;

[0020] Figure 2 yes Figure 1 Schematic diagram of longitudinal section;

[0021] Figure 3 yes Figure 2 The main cross-sectional view of

[0022] Figure 4 is a schematic structural diagram of the flow diverter described in Example 1;

[0023] Figure 5 yes Figure 4 The main cross-sectional view of

[0024] Figure 6 is a cross-sectional schematic diagram of the moxibustion head assembly described in Example 2;

[0025] Figure 7 Figure 6 An enlarged view of the middle support, the primary smoke filter block and the moxa stick;

[0026] Figure 8 is a cross-sectional schematic diagram of the moxibustion head assembly described in Example 3;

[0027] Fig. 9 yes Figure 8 Stereoscopic image of

[0028] Fig.10 It is a schematic longitudinal section diagram of the cover shell, connecting shell, outer shell, inner shell, mounting frame and diverter. DETAILED DESCRIPTION

[0029] In order to make the technical purpose, technical scheme and beneficial effects of the utility model clearer, the technical scheme of the utility model is further explained below in conjunction with specific embodiments. However, the embodiments are intended to explain the utility model and cannot be understood as limiting the utility model. If no specific technology or conditions are specified in the embodiments, the technology or conditions described in the literature in the field or the product manual shall be followed. Example 1

[0030] A moxibustion head shell of a smoke-free moxibustion instrument, such as Figures 1 to 5 As shown, it includes an inner shell 2 and an outer shell 1. A plurality of connecting plates 3 extending in the longitudinal direction are evenly spaced and connected in the middle of the inner shell 1 along the circumferential direction, and the connecting plates 3 are arranged in upper and lower layers. The inner side of the connecting plate 3 located in the upper layer is connected to the outer side wall of the inner shell 2, and the inner side of the connecting plate 3 located in the lower layer is connected to a supporting tube 4. The axial center line of the supporting tube 4 coincides with the axial center line of the outer shell 1. The inner shell 2 is inserted into the supporting tube 4, and the supporting tube 4 supports and limits the inner shell 2. A mounting frame 5 for fixing the moxibustion material is arranged in the inner shell 2. The mounting frame 5 includes an upper frame body 501 and a lower frame body 502 arranged at a vertical spacing. The moxibustion material can be arranged between the upper frame body 501 and the lower frame body 502.

[0031] In order to facilitate the disassembly and assembly of the inner shell 2, the inner shell 2 includes a first upper shell part 201, a middle shell part 202 and a first lower shell part 203 which are assembled from top to bottom in sequence, the bottom of the first upper shell part 201 is plugged into the top of the middle shell part 202, the middle shell part 202 is installed on the support tube 4, the top of the first lower shell part 203 is inserted into the bottom of the middle shell part 202, and is fixed by snap-fitting; the top of the first upper shell part 201 is provided with an air suction port 7, the first lower shell part 203 is a cylindrical structure with open ends at the upper and lower ends, and the lower end of the first lower shell part 203 is the air inlet 8; the inner cavity of the first upper shell part 201 is used to fill the filter material to form a secondary filter chamber 12, the middle shell part 202 can be provided with the filter material to form the moxa smoke primary filter chamber 11, the lower inner part of the first lower shell part 203 is used to install the moxa material to form the moxa material combustion chamber 10, and the diameter of the moxa material combustion chamber 10 is smaller than the diameter of the secondary filter chamber 12. A reflux chamber 13 is formed between the outer shell 1 and the inner shell 2. To facilitate the disassembly and assembly of the outer shell 1, the outer shell 1 includes a second upper shell portion 101 and a second lower shell portion 102 installed together by fasteners; the upper portion of the second upper shell portion 101 is spherical, which helps to guide the upward airflow from the air outlet 7 outward and downward; the upper end of the second lower shell portion 102 is consistent with the inner diameter of the lower portion of the second upper shell portion 101, and the inner diameter of the middle and lower portion of the second lower shell portion 102 gradually decreases, and the bottom of the second lower shell portion 102 extends downward to below the first lower shell portion 203. A vent 9 is provided at the lower end of the second lower shell portion 102, and the vent 9 is located directly below the air inlet 8, and the diameter of the vent 9 is smaller than the diameter of the air inlet 8.

[0032] A flow divider 6 is installed at the vent 9, and the flow divider 6 is located between the vent 9 and the air inlet 8. The flow divider 6 includes a ring body 601 coaxially arranged with the vent 9, the outer diameter of the upper port of the ring body 601 is smaller than the inner diameter of the air inlet 8, and the outer diameter of the lower port of the ring body 601 is smaller than the inner diameter of the vent 9; the outer side wall of the ring body 601 has an upper guide surface 6011 for introducing airflow to the air inlet 8 and a lower guide surface 6012 for guiding airflow to the vent 9, and the ring body at the junction of the upper guide surface 6011 and the lower guide surface 6012 is The outer diameter of 601 is not less than the inner diameter of the air inlet 8; the upper guide surface 6011 and the lower guide surface 6012 are both concave annular arc surfaces, and on the longitudinal section of the annular arc surface, the central angles of the upper guide surface 6011 and the lower guide surface 6012 are both 90°, that is, the top of the upper guide surface 6011 and the bottom of the lower guide surface 6012 are both tangent to the vertical plane, and the bottom of the upper guide surface 6011 and the top of the lower guide surface 6012 are both tangent to the horizontal plane. The annular body 601 forms an air inlet channel 603, and the air inlet channel 603 includes a first hole portion, a second hole portion and a third hole portion that are coaxially connected from top to bottom. The cross-sections of the first hole portion, the second hole portion and the third hole portion are all circular, and the diameters of the first hole portion and the third hole portion remain unchanged. The diameter of the first hole portion is larger than that of the third hole portion, and the diameter of the second hole portion decreases from top to bottom. The bottom of the ring body 601 is provided with a bracket 602 for mounting and fixing the ring body 601, the bracket 602 includes a support ring portion 6022 coaxially arranged with the ring body 601, the support ring portion 6022 is annular, the inner diameter of the support ring portion 6022 is larger than the outer diameter of the bottom of the ring body 601, and the bottom surface of the support ring portion 6022 is flush with the bottom surface of the ring body 601, and the inner side of the support ring portion 6022 is connected with a plurality of support strips 6021 at even intervals along the circumferential direction, the inner side of the support strips 6021 is connected to the bottom of the ring body 601, and an air outlet 604 is formed between two adjacent support strips 6021. The diverter 6 is placed on the upper side of the vent 9, and screws are evenly installed along the circumferential direction beside the vent 9, the screws pass through the housing 1 and are fastened to the support ring portion 6022, and the diverter 6 is fastened and installed in the housing 1 by screws. Example 2

[0033] A moxibustion head component of a smoke-free moxibustion instrument, such as Figure 6 , 7As shown, it includes the moxibustion head shell described in Example 1, the upper frame 501 is arranged in the middle shell part 202, the lower frame 502 is installed at the lower part of the first lower shell part 203, and the lower part of the lower frame 502 forms a hollow cylindrical seat structure to facilitate the insertion and positioning of the moxa stick 18. A support member 17 is installed on the lower side of the upper frame 501, and the lower end of the support member 17 is connected to the moxa stick 18, and the lower end of the moxa stick 18 is in contact with the lower frame 502. A primary filter block 16 is provided in the moxa smoke primary filter chamber 11, and the primary filter block 16 is mounted on the support member 17 to facilitate the preliminary filtration of the high-temperature smoke generated by the combustion of the moxa stick 18; the secondary filter chamber 12 is filled with a secondary filter block 15, and the secondary filter block 15 can be selected from filter cotton, and an exhaust fan 14 is installed at the exhaust port 7.

[0034] The support member 17 includes a compression spring 1701, a lower cylinder 1702, an upper cylinder 1703 and a connecting cylinder 1704 which are sequentially sleeved from the inside to the outside. The upper end of the lower cylinder 1702 is open, and the lower end of the upper cylinder 1703 is open. The bottom of the compression spring 1701 is in contact with the inner bottom surface of the lower cylinder 1702, and the top of the compression spring 1701 is in contact with the inner top surface of the upper cylinder 1703. An external thread protrusion 1705 is provided at the top of the outer wall, and an internal thread protrusion 1706 is provided at the bottom of the inner wall of the upper cylinder 1703, and the external thread protrusion 1705 is adapted to the thread on the internal thread protrusion 1706, so that the lower cylinder 1702 can be screwed into the upper cylinder 1703 through the external thread protrusion 1705, and the external thread protrusion 1705 and the internal thread protrusion 1706 can play the role of upper and lower end limit, preventing the lower cylinder 1702 from sliding out. The top of the upper cylinder 1703 is installed on the upper frame 501, and under the elastic force of the compression spring 1701, the bottom of the lower cylinder 1702 is in contact with the top surface of the moxa stick 18, and the burning surface of the moxa stick 18 is always located on the bottom surface of the lower frame 502. The bottom of the connecting tube 1704 is inserted into the moxa stick 18, and the end of the connecting tube 1704 inserted into the moxa stick 18 is bent inwards to connect and tighten to prevent the moxa stick 18 from falling off. The primary smoke filter block 16 is sleeved on the upper part of the connecting tube 1704.

[0035] When the moxibustion head assembly is used for moxibustion, the moxa stick 18 is ignited, the exhaust fan 14 is turned on, and the moxibustion head assembly is controlled to be located above the moxibustion treatment site of the person being moxibustioned. Under the axial wind force of the exhaust fan 14, the air at the vent 9 enters the first lower shell portion 203 through the air inlet channel 603 and the air inlet 8 to maintain the burning of the moxa stick 18; and the moxa smoke generated by the burning of the moxa stick 18 flows upward from the circumferential outer side of the moxa stick 18 and the support member 17, and passes through the primary smoke filter block 16 and the secondary smoke filter block in turn. After filtration, the wormwood smoke is discharged from the air outlet 7 into the reflux chamber 13. After hitting the top of the second upper shell part 101, the filtered wormwood smoke flows downward along the outer shell 1 to the bottom of the reflux chamber 13. Under the guiding action of the diverter 6, the airflow is diverted: one part flows along the upper guide surface 6011 into the inner shell 2 from the air inlet 8, and the other part flows along the lower guide surface 6012 through the air outlet 604 and the vent 9 to be discharged, thereby completing the internal circulation purification of the wormwood smoke and the external discharge of part of the smokeless gas. Example 3

[0036] A moxibustion head component of a smoke-free moxibustion instrument, such as Figures 8-10 As shown, on the basis of embodiment 2, a distance sensor 22, a temperature sensor 23, a control display screen 19 and a control processing module 24 are added. Figure 8 The direction indicated by the middle arrow F is forward. The distance sensor 22 and the temperature sensor 23 are both arranged on the outside of the housing 1, and the distance sensor 22 and the temperature sensor 23 are both located at the lower part of the housing 1. The distance sensor 22 is used to detect the distance between the moxibustion head assembly and the person being moxibustioned, and the temperature sensor 23 is used to sense the body surface temperature of the moxibustion treatment part of the person being moxibustioned; the control display screen 19 is arranged on the front side of the housing 1, and the control display screen 19 is located in the middle part of the housing 1. The control display screen 19 is used to facilitate the user to directly touch and select, and can also display the use data of the smoke-free moxibustion instrument; the control processing module 24 is arranged on the housing 1, and the control display screen 19 is located in the middle of the housing 1, the distance sensor 22, the temperature sensor 23, the control display screen 19 and the exhaust fan 14 are all electrically connected to the control processing module 24, the control processing module 24 is used to receive the control signal of the control display screen 19, the detection data of the temperature sensor 23 and the distance sensor 22, and perform corresponding control according to the set program, the control processing module 24 also controls the start and stop of the exhaust fan 14, the control processing module 24 and the set program thereof can adopt the conventional technology of the prior art, which is not the innovation of the present utility model, so it will not be described in detail.

[0037] In order to facilitate the installation of the distance sensor 22, the temperature sensor 23, the control display screen 19 and the control processing module 24, and to hide the circuits for realizing electrical connection, the outer cover of the housing 1 is provided with a cover shell 20, and a connecting shell 21 is installed on the rear side of the cover shell 20. The distance sensor 22 and the temperature sensor 23 are installed at the bottom of the cover shell 20, and the control processing module 24 is installed in the connecting shell 21.

[0038] In order to realize intelligent control, the moxibustion head assembly usually needs to cooperate with a camera module for scanning and collecting image information of the moxibustion recipient and a mechanical arm for controlling the precise movement of the moxibustion head assembly. When the moxibustion head assembly is used, the moxibustion treatment site and the moxibustion temperature of the moxibustion recipient are set by controlling the display screen 19. After the camera module collects and determines the coordinates of the moxibustion site, the moxa stick 18 is ignited, the exhaust fan 14 is turned on, and the moxibustion head assembly is moved by the mechanical arm to locate the moxibustion site under the real-time detection of the distance sensor 22. Then, the moxibustion head assembly is adjusted using the feedback data of the temperature sensor 23 so that the surface temperature of the moxibustion site reaches the set moxibustion temperature, and moxibustion can be performed according to the moxibustion treatment plan.

[0039] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A moxibustion head housing of a smoke-free moxibustion instrument, characterized in that: It includes an inner shell, an outer shell and a connecting plate connected between the inner shell and the outer shell. The inner cavity of the inner shell is provided with a moxibustion material combustion chamber, a moxa smoke primary filtration chamber and a secondary filtration chamber from bottom to top. The outer shell and the inner shell are enclosed to form a reflux chamber. The top of the inner shell is provided with an air suction port, the lower end of the inner shell is provided with an air inlet, the lower end of the outer shell is provided with an air vent, and the air inlet is directly below the air inlet. A diverter is installed at the air vent, and the diverter is located between the air vent and the air inlet. The outer side wall of the diverter has an upper guide surface for introducing airflow into the air inlet and a lower guide surface for guiding airflow to the vent.

2. The moxibustion head housing of the smoke-free moxibustion instrument according to claim 1 is characterized in that: The flow divider includes a ring body coaxially arranged with the vent, the outer diameter of the upper port of the ring body is smaller than the inner diameter of the air inlet, the outer diameter of the lower port of the ring body is smaller than the inner diameter of the vent, and the outer diameter of the ring body at the junction of the upper guide surface and the lower guide surface is not smaller than the inner diameter of the air inlet.

3. The moxibustion head housing of the smoke-free moxibustion instrument according to claim 2 is characterized in that: The upper guide surface and the lower guide surface are both annular smooth arc surfaces.

4. The moxibustion head housing of the smoke-free moxibustion instrument according to claim 1 is characterized in that: The inner top of the shell is in a gradually expanding shape.

5. The moxibustion head housing of the smoke-free moxibustion instrument according to any one of claims 1 to 4, characterized in that: A mounting frame for fixing the moxibustion material is arranged inside the inner shell.

6. A moxibustion head assembly of a smoke-free moxibustion instrument, comprising the moxibustion head housing according to claim 5, characterized in that: The moxa smoke primary filter chamber is provided with a primary filter block, the secondary filter chamber is filled with a secondary filter block, and an exhaust fan is installed at the exhaust port.

7. The moxibustion head assembly of the smoke-free moxibustion instrument according to claim 6, characterized in that: The mounting frame includes an upper frame and a lower frame arranged at an upper and lower interval, a support member is installed on the lower side of the upper frame, the lower end of the support member is connected to the moxibustion material, the lower end of the moxibustion material is abutted against the lower frame, and the primary smoke filter block is mounted on the support member.

8. The moxibustion head assembly of the smoke-free moxibustion instrument according to claim 7, characterized in that: The support member includes a compression spring, a lower cylinder, an upper cylinder and a connecting cylinder which are sequentially arranged from the inside to the outside. The upper end of the lower cylinder is open, and the lower end of the upper cylinder is open. The bottom of the compression spring is in contact with the inner bottom surface of the lower cylinder, and the top of the compression spring is in contact with the inner top surface of the upper cylinder; the bottom of the lower cylinder is in contact with the top surface of the moxibustion material, the top of the upper cylinder is installed on the upper frame, the bottom of the connecting cylinder is inserted into the moxibustion material, and the primary smoke filter block is mounted on the upper part of the connecting cylinder.

9. The moxibustion head assembly of the smoke-free moxibustion instrument according to claim 8, characterized in that: An external thread protrusion is provided at the top of the outer side wall of the lower cylinder, and an internal thread protrusion is provided at the bottom of the inner side wall of the upper cylinder, and the external thread protrusion is matched with the thread on the internal thread protrusion.

10. The moxibustion head assembly of the smoke-purifying moxibustion instrument according to any one of claims 6 to 9, characterized in that: It also includes a distance sensor and a temperature sensor. The distance sensor is used to detect the distance between the moxibustion head assembly and the person being moxibustioned, and the temperature sensor is used to sense the body surface temperature of the moxibustion treatment area of ​​the person being moxibustioned.

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