Vehicle-mounted aromatherapy box with convenient release concentration adjustment

Abstract

This invention discloses a car-mounted aromatherapy diffuser box with convenient adjustable release concentration, comprising a fixed plate, a fixed sleeve, a rotating cover, an upper ventilation assembly, a lower ventilation assembly, and an air outlet positioning device; the fixed plate is connected to the fixed sleeve to form a solid aromatherapy placement cavity; the rotating cover is installed on the top of the fixed sleeve; the middle portions of the rotating cover and the fixed sleeve are respectively provided with a first opening and a second opening; the upper ventilation assembly includes multiple cooperating blades; the multiple blades respectively cooperate with the rotating cover and the fixed sleeve, and when the rotating cover rotates, the blades can close or expose the second opening; the lower ventilation assembly includes a rotating disc and a pressure ring; the rotating disc is installed on the bottom surface of the solid aromatherapy placement cavity, and a push rod extending out of the fixed plate is provided on the side of the rotating disc; the pressure ring cover is provided around the rotating disc and connected to the fixed disc; the bottom surfaces of the rotating disc and the fixed plate are respectively provided with a first ventilation hole and a second ventilation hole. This invention can use the upper and lower ventilation assemblies to control the entry and exit of air conditioning air in the car-mounted aromatherapy diffuser box.

Description

Technical Field

[0001] This invention relates to the field of car-mounted aromatherapy diffuser technology, specifically to a car-mounted aromatherapy diffuser that allows for easy adjustment of the release concentration. Background Technology

[0002] Car air fresheners use a natural evaporation and fumigation method. Some car air fresheners add plant essential oils to exquisitely crafted crystal car air freshener bottles, allowing them to diffuse naturally and slowly inside the car to achieve a fragrant environment, sterilize and deodorize, and refresh the mind.

[0003] In addition, some car air fresheners are box-shaped. For example, the car air freshener box with adjustable release concentration disclosed in authorization announcement number CN218112304U specifically discloses a fixing plate, a fixing sleeve provided on one outer wall of the fixing plate, and an air inlet hole provided on one outer wall of the fixing plate near the inner side of the fixing sleeve. A threaded connecting sleeve is provided at the center of one outer wall of the fixing plate, a cover is provided on one side of the fixing sleeve, a threaded connector is provided at the center of one outer wall of the cover, and a first exhaust hole is provided on the other outer wall of the cover. A turntable is connected to the central position via a damping shaft. A second vent hole is provided on one outer wall of the turntable, and a round handle is provided at the center of the outer wall of the turntable away from the cover. A threaded connector is provided at the center of the outer wall of the cover away from the turntable. A fixing plate is fixedly connected to the outer wall of the fixed plate away from the fixed sleeve by bolts. An inclined plate and a first clamping plate are provided on the outer wall of the fixed plate away from the fixed plate. The inclined plate is located above the first clamping plate. A second clamping plate is provided on one outer wall of the inclined plate. A stop strip is provided on the top of the first clamping plate near the second clamping plate. The first and second vent holes are both rectangular in cross-section and are matched.

[0004] However, the aforementioned car air freshener box with adjustable release concentration also has some drawbacks. For example, it utilizes the combination of a first vent on the cover and a second vent on the turntable to adjust the release concentration. However, since only the first vent is on the cover and the second vent is on the turntable, in actual use, if the air freshener box is installed near the car's air conditioning vent, air will enter the box through the air intake as soon as the air conditioning is turned on. This means the air freshener box cannot effectively block the air exhausted by the air conditioning from entering. In this case, even if the first vent is closed, it cannot stop the diffusion of the fragrance, as some of the fragrance may escape outward through the air intake. This means that if people don't want to smell the fragrance, simply turning the turntable of the air freshener box cannot prevent or reduce the evaporation of the fragrance; in other words, it cannot adjust or prevent the airflow from the air conditioning vent from entering the air freshener box.

[0005] Therefore, improvements to existing technologies are necessary. Summary of the Invention

[0006] To address the problems existing in the prior art, the purpose of this invention is to provide a car-mounted aromatherapy box with easily adjustable release concentration. This box is equipped with an upper ventilation component and a lower ventilation component, enabling airflow control at both ends. This allows for effective regulation or prevention of airflow from the air conditioning vents into the aromatherapy box when the car's air conditioning is on, reducing airflow or allowing natural evaporation. Furthermore, when both the upper and lower ventilation components are closed, the evaporation of the aromatherapy fragrance outside the box is significantly reduced.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] A car-mounted aromatherapy diffuser box with easily adjustable release concentration includes a fixed plate, a fixed sleeve, a rotating cover, an upper ventilation assembly, a lower ventilation assembly, and an air outlet positioning device. The lower end of the fixed sleeve is connected to the upper end of the fixed plate, forming a solid aromatherapy placement cavity between them. The rotating cover is rotatably mounted on the top of the fixed sleeve. Corresponding first and second openings are respectively provided in the middle portions of the rotating cover and the fixed sleeve. The upper ventilation assembly includes multiple cooperating blades. The multiple blades are located between the top of the rotating cover and the fixed sleeve and are arranged around the second opening. The multiple blades respectively cooperate with the rotating cover and the fixed sleeve to... When rotated, the rotating cover allows multiple blades to have a first position where they interlock to form a closed second opening and a second position where they are separated from each other and exposed to the second opening; the lower ventilation assembly includes a turntable and a pressure ring; the turntable is rotatably mounted on the bottom surface of the solid aromatherapy placement chamber, and a push rod is provided on the side of the turntable, extending out of the fixed plate through a perforation on the side of the fixed plate; the pressure ring is provided around the turntable and connected to the fixed plate; a plurality of first ventilation holes and a plurality of second ventilation holes are respectively provided on the bottom surfaces of the turntable and the fixed plate; the air outlet positioning device is installed at the bottom of the fixed plate.

[0009] Furthermore, the upper ventilation assembly also includes multiple positioning screws; multiple circumferentially evenly inclined strip-shaped insertion holes are distributed around the top of the fixing sleeve; a positioning screw is connected to the outer end of each blade, and one end of the positioning screw is movably inserted into one of the strip-shaped insertion holes; multiple circumferentially evenly distributed fulcrum rods are also provided on the top inner wall of the rotating cover; each fulcrum rod is correspondingly inserted into a fulcrum hole of one of the blades; the fulcrum holes are located close to the positioning screws.

[0010] Furthermore, the blades are provided with six mutually cooperating parts.

[0011] Furthermore, the lower end of the fixing sleeve is threadedly connected to the upper end of the fixing disc.

[0012] Furthermore, at least two evenly distributed first hook rings are provided around the top of the fixed sleeve, and at least two evenly distributed hooks that cooperate with the first hook rings are provided around the bottom of the rotating cover; the first hook rings and the hooks are engaged with each other.

[0013] Furthermore, the pressure ring is interference-fitted with the inner wall of the fixed plate.

[0014] Furthermore, multiple protrusions are evenly distributed around the pressure ring; multiple grooves that mate with the protrusions are evenly distributed on the inner wall of the fixing plate; the protrusions are used to be engaged in the grooves.

[0015] Furthermore, the air outlet positioning device has deformable elasticity. The air outlet positioning device includes a positioning block, four mutually spaced and deformable elastic clamping strips connected to the bottom of the positioning block, and a second ring-shaped hook ring connected to the top of the positioning block. The upper ends of the four clamping strips are spaced apart from each other, and the lower ends are close together. A central hole is provided in the middle of the bottom surface of the fixed plate, located between a plurality of second ventilation holes. A retaining ring is provided on the surrounding side wall of the central hole for cooperating with the second retaining ring. The second retaining ring can be inserted into the central hole and engaged with the retaining ring.

[0016] Furthermore, multiple connecting strips extending towards the center of the pressure ring are evenly distributed on the inner wall around the pressure ring, and the ends of the multiple connecting strips are respectively connected to a limiting block; the bottom of the limiting block is inserted into the central hole, and the bottom of the limiting block is engaged in an embedded groove on the top surface of the positioning block; the connecting strips are misaligned with the second ventilation hole.

[0017] Furthermore, it also includes a solid aromatherapy box; an aromatherapy chamber in the shape of a ring with multiple vent holes at the top and bottom is provided inside the solid aromatherapy box; the vent holes are respectively matched with the first ventilation hole, the second ventilation hole, the first opening and the second opening.

[0018] The beneficial effects of this invention are as follows:

[0019] (i) By setting up an upper ventilation component and a lower ventilation component, the present invention can drive multiple blades to open and close when the rotating cover is rotated, so as to correspondingly close and expose the second opening. This allows the fragrance released by the solid fragrance placed in the solid fragrance placement chamber to be discharged through the first and second openings. Moreover, since it can adjust the opening and closing range of the blades according to the rotation range of the rotating cover, it can adjust the fragrance release concentration, or even close the opening. At the same time, when the push rod on the rotating plate is rotated, the push rod will move in the corresponding hole, so as to synchronously drive the rotating plate to rotate left and right in the corresponding direction, thereby changing the misaligned cross-section between each first ventilation hole and a second ventilation hole. This can adjust or even close the amount of gas entering from the air conditioner, thus controlling the amount of gas blown onto the solid fragrance and achieving the effect of adjusting the fragrance release concentration.

[0020] (ii) Because the present invention has two aroma release concentration adjustment components, namely the upper ventilation component and the lower ventilation component, it has multiple usage modes. For example, after installing the car-mounted aroma box with convenient release concentration adjustment at the air conditioning vent of a car, if the turntable of the lower ventilation component is rotated to the position of closing the second ventilation hole, that is, when the first ventilation hole and the second ventilation hole are completely misaligned, then even if the air conditioning of the car is turned on, the gas discharged by the air conditioning cannot enter the aroma box. In this way, after opening the blade of the upper ventilation component (that is, opening the second opening and moving the blade to the second position), the solid aroma inside can be in a state of natural evaporation, which is not easily accelerated by the gas discharged by the air conditioning. If the blade of the upper ventilation component is closed again (that is, closing the second opening and moving the blade to the first position), the aroma evaporated by the solid aroma is more difficult to be discharged, that is, the emission of aroma is greatly reduced. Of course, if the blades of the upper ventilation component are opened and the turntable of the lower ventilation component is rotated to open the second ventilation hole, the gas discharged from the air conditioner can be used to accelerate the evaporation rate of the solid fragrance, greatly increasing the fragrance release concentration. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ;

[0024] Figure 4 yes Figure 3 Cross-sectional view along the middle AA;

[0025] Figure 5 The explosion of the present invention Figure 1 ;

[0026] Figure 6 The explosion of the present invention Figure 2 ;

[0027] Figure 7 This is a partial structural diagram of the present invention. Figure 1 ;

[0028] Figure 8 This is a partial structural diagram of the present invention. Figure 2 .

[0029] Figure Labels

[0030] 1. Fixing plate; 11. Perforation; 12. Second ventilation hole; 13. Groove; 14. Center hole; 15. Snap ring; 16. Positioning ring;

[0031] 2. Fixing sleeve; 21. Second opening; 22. Strip-shaped insertion hole; 23. First hook ring;

[0032] 3. Turn-on cover; 31. First opening; 32. Pivot rod; 33. Hook;

[0033] 4. Upper ventilation assembly; 41. Blades; 42. Positioning screws; 43. Support hole;

[0034] 5. Lower ventilation assembly; 51. Turntable; 52. Pressure ring; 53. Push rod; 54. First ventilation hole; 55. Protrusion; 56. Connecting strip; 57. Limiting block;

[0035] 6. Air outlet positioning device; 61. Positioning block; 62. Clamping strip; 63. Second hook ring; 64. Embedded groove;

[0036] 7. Solid aromatherapy diffuser placement chamber;

[0037] 8. Solid aromatherapy box; 81. Ventilation holes. Detailed Implementation

[0038] The invention will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely exemplary and does not limit the scope of protection of the invention.

[0039] like Figures 1-8 As shown, a car-mounted aromatherapy box with convenient adjustable release concentration includes a fixing plate 1, a fixing sleeve 2, a rotating cover 3, an upper ventilation component 4, a lower ventilation component 5, and an air outlet positioning device 6.

[0040] The lower end of the fixing sleeve 2 is connected to the upper end of the fixing plate 1, and a solid aromatherapy placement cavity 7 is formed between the two; the rotating cover 3 is rotatably installed on the top of the fixing sleeve 2; and corresponding first opening 31 and second opening 21 are respectively provided in the middle part of the rotating cover 3 and the fixing sleeve 2.

[0041] The upper ventilation assembly 4 includes multiple cooperating blades 41; the multiple blades 41 are located between the top of the rotating cover 3 and the fixed sleeve 2 and are arranged around the second opening 21. The multiple blades 41 cooperate with the rotating cover 3 and the fixed sleeve 2 respectively, so that when the rotating cover 3 rotates, the multiple blades 41 can have a first position where they are spliced ​​together to form a closed second opening 21 and a second position where they are separated from each other and exposed to the second opening 21; the lower ventilation assembly 5 includes a turntable 51 and a pressure ring 52; the turntable 51 is rotatably installed on the bottom surface of the solid aromatherapy placement cavity 7, that is, the inner wall of the fixed plate 1. A pressure ring is also provided on the side of the turntable 51. A push rod 53 extends out of the fixed plate 1 through a perforation 11 on its side. Specifically, the perforation 11 has a certain length to allow the push rod 53 to move, and the push rod 53 can drive the turntable 51 to rotate when it moves. A pressure ring 52 covers the circumference of the turntable 51 and is connected to the fixed plate 1. Specifically, the inner side of the pressure ring 52 covers the circumference of the turntable 51, so that the pressure ring 52 can limit the position of the turntable 51. Several first ventilation holes 54 and several second ventilation holes 12 are respectively provided on the bottom surface of the turntable 51 and the fixed plate 1. An air outlet positioning device 6 is installed at the bottom of the fixed plate 1. Specifically, the second opening 21 can be a single large opening or a combination of multiple openings close to each other.

[0042] In summary, by setting up the upper ventilation component 4 and the lower ventilation component 5, the present invention can drive multiple blades 41 to open and close when the rotating cover 3 is rotated, so as to correspondingly close and expose the second opening 21. This allows the fragrance released by the solid fragrance placed in the solid fragrance placement cavity 7 to be discharged through the first opening 31 and the second opening 21. Moreover, since it can adjust the opening and closing range of the blades 41 according to the rotation range of the rotating cover 3, it can achieve the effect of adjusting the fragrance release concentration, or even close the opening. At the same time, when the push rod 53 on the rotating disk 51 is rotated, the push rod 53 will move in the corresponding hole 11, so as to synchronously drive the rotating disk 51 to achieve left and right rotation in the corresponding direction, thereby changing the misaligned cross-section between each first ventilation hole 54 and a second ventilation hole 12. This can control the amount of gas entering from the air conditioner, and thus adjust or even close the amount of gas blown onto the solid fragrance, achieving the effect of adjusting the fragrance release concentration. Furthermore, since this invention has two aroma release concentration adjustment components, namely the upper ventilation component 4 and the lower ventilation component 5, it has multiple usage modes. For example, after installing this car-mounted aroma diffuser box with convenient release concentration adjustment at the air conditioning vent of a car, if the turntable 51 of the lower ventilation component 5 is rotated to the position of closing the second ventilation hole 12, that is, when the first ventilation hole 54 and the second ventilation hole 12 are completely misaligned, then even if the car's air conditioning is on, the gas discharged by the air conditioning cannot enter the aroma diffuser box. In this way, after opening the blade 41 of the upper ventilation component 4 (that is, opening the second opening 21 and moving the blade 41 to the second position), the solid aroma diffuser inside can be in a state of natural evaporation, which is not easily accelerated by the gas discharged by the air conditioning. If the blade 41 of the upper ventilation component 4 is closed at this time (that is, closing the second opening 21 and moving the blade 41 to the first position), the aroma diffuser evaporated by the solid aroma diffuser is more difficult to be discharged, that is, the emission of aroma diffuser is greatly reduced. Of course, if the blades 41 of the upper ventilation component 4 are opened and the turntable 51 of the lower ventilation component 5 is rotated to the position where the second ventilation hole 12 is opened, the gas discharged by the air conditioner can be used to accelerate the evaporation rate of the solid fragrance and greatly increase the fragrance release concentration.

[0043] like Figures 4-7As shown, in this embodiment, the upper ventilation assembly 4 also includes multiple positioning screws 42; multiple circumferentially evenly inclined strip-shaped insertion holes 22 are distributed around the top of the fixing sleeve 2; a positioning screw 42 is connected to the outer end of each blade 41, and one end of the positioning screw 42 is movably inserted into a strip-shaped insertion hole 22; multiple circumferentially evenly distributed fulcrum rods 32 are also provided on the top inner wall of the rotating cover 3; each fulcrum rod 32 is correspondingly inserted into a fulcrum hole 43 of a blade 41; the fulcrum hole 43 is located close to the positioning screw 42. Specifically, the fulcrum hole 43 is offset from the positioning screw 42. Therefore, by using the above-mentioned setup, after the fulcrum rod 32 is inserted into the fulcrum hole 43, the blade 41 can form a fulcrum at the position of the fulcrum rod 43. Then, the positioning screw 42 is inserted into the strip-shaped insertion hole 22. In this way, when the cover 3 rotates, the fulcrum rod 32 will drive the blade 41 to rotate. At the same time, the positioning screw 42 will also move in the corresponding strip-shaped insertion hole 22, thereby achieving the effect of horizontal swing of the blade 41. If each blade 41 swings in the corresponding direction at the same time, it can form an opening and closing effect. For example, when each blade 41 moves to the first position, the second opening 21 is closed. When each blade 41 moves to the second position, the second opening 21 is exposed.

[0044] like Figure 7 As shown, in this embodiment, six blades 41 are provided that cooperate with each other. Regarding the shape of the blade 41, the end that approaches the other blades 41 is pointed, so that each blade 41 can close tightly together. Since the shape of the blade 41 adopts a commonly used structure, it will not be described in detail here.

[0045] like Figure 4 As shown, in this embodiment, the lower end of the fixing sleeve 2 is threadedly connected to the upper end of the fixing plate 1, thereby facilitating the assembly and disassembly of the fixing sleeve 2 and the fixing plate 1.

[0046] like Figures 4-6 As shown, in this embodiment, at least two evenly distributed first hook rings 23 are provided around the top perimeter of the fixed sleeve 2, and at least two evenly distributed hooks 33 that cooperate with the first hook rings 23 are provided around the bottom perimeter of the rotating cover 3; the first hook rings 23 and the hooks 33 engage with each other. Therefore, through the above arrangement, the cooperation between the first hook rings 23 and the hooks 33 can be used to limit the rotating cover 3, allowing the rotating cover 3 to be stably connected to the fixed sleeve 2 and facilitating rotation.

[0047] like Figure 4As shown, in this embodiment, the pressure ring 52 is interference-fitted with the inner wall of the fixed disk 1, thereby positioning the pressure ring 52. It should also be noted that the pressure ring 52 does not completely and tightly press against the turntable 51 to avoid affecting its rotation; the pressure plate 52 is sufficient to limit the turntable 51 and prevent it from coming off.

[0048] like Figures 5-8 As shown, specifically, multiple protrusions 55 are evenly distributed around the pressure ring 52; multiple grooves 13 that mate with the protrusions 55 are evenly distributed on the inner wall of the fixed disk 1; the protrusions 55 are used to be engaged in the grooves 13. Therefore, the engagement of the protrusions 55 and the grooves 13 can stably install the pressure ring 52 and prevent it from rotating left or right, thus avoiding affecting the performance of the turntable 51.

[0049] like Figures 4-6 As shown, in this embodiment, the air outlet positioning device 6 has deformable elasticity. The air outlet positioning device 6 includes a positioning block 61, four mutually spaced and deformable elastic clamping strips 62 connected to the bottom of the positioning block 61, and a ring-shaped second hook ring 63 connected to the top of the positioning block 61. The upper ends of the four clamping strips 62 are spaced apart, and the lower ends are close together. A central hole 14 is provided in the middle of the bottom surface of the fixing plate 1, located among several second ventilation holes 12. A retaining ring 15 for cooperating with the second hook ring 63 is provided on the surrounding sidewalls of the central hole 14. The second hook ring 63 can be inserted into the central hole 14 and engaged with the retaining ring 15. Therefore, the above arrangement allows the air outlet to be clamped at the position of the air conditioner using the deformable elastic clamping strips 62. Since using clamping strips 62 to achieve the clamping effect is a conventional technique in this field, the structure of the clamping strips 62 will not be described in detail here. In addition, since the air outlet positioning device 6 is also equipped with a second locking ring 63, the second locking ring 63 can be engaged with the locking ring 15 to complete the installation and positioning of the air outlet positioning device 6. As for the material used for the air outlet positioning device 6, it can be a conventional material available on the market, and its deformation elasticity should not be too large to prevent the air outlet positioning device 6 from loosening when installed at the air conditioner air outlet.

[0050] like Figure 8As shown, in this embodiment, multiple connecting strips 56 extending towards the center of the pressure ring 52 are evenly distributed on the inner wall around the pressure ring 52, and the ends of the multiple connecting strips 56 are respectively connected to a limiting block 57; the bottom of the limiting block 57 is inserted into the central hole 14, and the bottom of the limiting block 57 is engaged in an embedded groove 64 on the top surface of the positioning block 61; the connecting strips 56 are misaligned with the second ventilation hole 12. Therefore, the above arrangement can conveniently limit the pressure ring 52 and strengthen its firmness, and the connecting strips 56 will avoid affecting the normal use of the second ventilation hole 12. At the same time, since the limiting block 57 is engaged in the embedded groove 64, the limiting block 57 can block the positioning block 61 to prevent it from loosening from the retaining ring 15, that is, to ensure the installation stability of the air outlet positioning device 6.

[0051] like Figure 4 As shown, specifically, a positioning ring 16 is provided on the bottom surface of the solid aromatherapy placement cavity 7 for passing through the through hole in the middle of the turntable 51 and surrounding the central hole 14, so as to position the turntable 51 and facilitate its rotation.

[0052] like Figures 5-6 As shown, this embodiment also includes a solid aromatherapy box 8; an aromatherapy chamber (not shown in the figure) is provided inside the solid aromatherapy box 8 in a ring shape with multiple ventilation holes 81 at the top and bottom; the ventilation holes 81 respectively cooperate with the first ventilation hole 54, the second ventilation hole 12, the first opening 31 and the second opening 21. Therefore, by setting the solid aromatherapy box 8, it can be used to hold and fix aromatherapy. Then, when it is needed, simply open the fixing plate 1 and the fixing sleeve 2, and then directly put the solid aromatherapy box 8 into the solid aromatherapy placement chamber 7, and it can be used normally afterwards.

[0053] The specific operating principle of this invention is described below to help you understand it:

[0054] First, a solid aromatherapy box 8 containing solid aromatherapy is placed inside the car-mounted aromatherapy box, which allows for easy adjustment of the release concentration. Next, the car-mounted aromatherapy box with adjustable release concentration is fixed to the car's air conditioning vent using the air outlet positioning device 6. Then, with the air conditioning on, rotating the turntable 51 adjusts the air intake of the car-mounted aromatherapy box, while rotating the cover 3 adjusts the exhaust airflow, thus adjusting the aromatherapy release concentration. Specific adjustments can be made according to actual needs. Furthermore, if the second ventilation hole 12 is closed using the turntable 51, the solid aromatherapy will naturally evaporate, and the air conditioning air will not blow into the car-mounted aromatherapy box. If the second opening 21 is closed using multiple blades 41, the aromatherapy will have difficulty evaporating.

[0055] This invention is not limited to the above-described embodiments. If any modifications or variations to this invention do not depart from the spirit and scope of this invention, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this invention, then this invention also intends to include such modifications and variations.

Claims

1. A car-mounted aromatherapy box with convenient adjustable release concentration, characterized in that: It includes a fixed plate, a fixed sleeve, a rotating cover, an upper ventilation assembly, a lower ventilation assembly, and an air outlet positioning device; The lower end of the fixing sleeve is connected to the upper end of the fixing plate, and a solid aromatherapy placement cavity is formed between the two. The rotating cover is rotatably mounted on the top of the fixed sleeve; a first opening and a second opening are respectively provided in the middle part of the rotating cover and the fixed sleeve. The upper ventilation assembly includes a plurality of mutually cooperating blades; the plurality of blades are located between the top of the rotating cover and the fixed sleeve and are arranged around the second opening, and the plurality of blades respectively cooperate with the rotating cover and the fixed sleeve so that when the rotating cover is rotated, the plurality of blades can have a first position where they are spliced ​​together to form a closed second opening and a second position where they are separated from each other and exposed to the second opening. The lower ventilation assembly includes a turntable and a pressure ring; the turntable is rotatably mounted on the bottom surface of the solid aromatherapy placement chamber, and a push rod is provided on the side of the turntable, extending out of the fixed plate through a perforation on the side of the fixed plate; the pressure ring covers the circumference of the turntable and is connected to the fixed plate; a plurality of first ventilation holes and a plurality of second ventilation holes are respectively provided on the bottom surfaces of the turntable and the fixed plate; The air outlet positioning device is installed at the bottom of the fixed plate.

2. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 1, characterized in that: The upper ventilation assembly also includes multiple positioning screws; multiple circumferentially evenly inclined strip-shaped insertion holes are distributed around the top of the fixed sleeve; a positioning screw is connected to the outer end of each blade, and one end of the positioning screw is movably inserted into one of the strip-shaped insertion holes; multiple circumferentially evenly distributed fulcrum rods are also provided on the top inner wall of the rotating cover; each fulcrum rod is correspondingly inserted into a fulcrum hole of one of the blades; the fulcrum holes are located near the positioning screws.

3. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 2, characterized in that: The blades are configured with six that cooperate with each other.

4. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 1, characterized in that: The lower end of the fixing sleeve is threadedly connected to the upper end of the fixing plate.

5. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 1, characterized in that: At least two evenly distributed first hook rings are provided around the top of the fixed sleeve, and at least two evenly distributed hooks that cooperate with the first hook rings are provided around the bottom of the rotating cover; the first hook rings and the hooks are engaged with each other.

6. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 1, characterized in that: The pressure ring is interference-fitted with the inner walls of the fixed plate.

7. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 6, characterized in that: Multiple protrusions are evenly distributed around the pressure ring; multiple grooves that mate with the protrusions are evenly distributed on the inner wall of the fixing plate; the protrusions are used to be engaged in the grooves.

8. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 1, characterized in that: The air outlet positioning device has deformable elasticity. The air outlet positioning device includes a positioning block, four mutually spaced and deformable elastic clamping strips connected to the bottom of the positioning block, and a second ring-shaped hook ring connected to the top of the positioning block; the upper ends of the four clamping strips are spaced apart from each other, and the lower ends are close to each other. A central hole is provided in the middle of the bottom surface of the fixed plate, which is located between a plurality of second ventilation holes. A retaining ring is provided on the surrounding side wall of the central hole for cooperating with the second retaining ring. The second retaining ring can be inserted into the central hole and engaged with the retaining ring.

9. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 8, characterized in that: Multiple connecting strips extending toward the center of the pressure ring are evenly distributed on the inner wall around the pressure ring, and the ends of the multiple connecting strips are respectively connected to a limiting block; the bottom of the limiting block is inserted into the central hole and the bottom of the limiting block is engaged in an embedded groove on the top surface of the positioning block; the connecting strips are misaligned with the second ventilation hole.

10. The car-mounted aromatherapy box with convenient adjustable release concentration according to claim 1, characterized in that: It also includes a solid aromatherapy box; an aromatherapy chamber is provided around the solid aromatherapy box in a ring shape with multiple vent holes at the top and bottom; the vent holes are respectively matched with the first ventilation hole, the second ventilation hole, the first opening and the second opening.

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