Vehicle-mounted perfumed sheet
By designing an adjustable structure and passive delivery components inside the hollow annular fragrance shell, the problems of the non-adjustable fragrance diffusion speed and susceptibility to contamination in existing vehicle-mounted fragrance chips have been solved, achieving flexible adjustment and efficient diffusion of fragrance diffusion speed.
Patent Information
- Application Number
- CN202422889998.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing car air fresheners have practical problems such as the inability to adjust the fragrance release speed and susceptibility to contamination. In particular, air fresheners without an auxiliary shell release fragrance quickly and are easily contaminated by touch, while air fresheners with an auxiliary shell cannot adjust the usage time according to needs.
A car air freshener has been designed, which adopts a hollow annular air freshener shell with an annular installation space inside. It includes the air freshener body, a limiting arc plate, an adjusting arc plate, and an arc-shaped sleeve. The coverage of the clearance groove can be adjusted by rotating the adjusting arc plate. Combined with a passive delivery component, the airflow of the car is used to achieve flexible diffusion of the fragrance.
It enables flexible adjustment of the aroma diffusion speed to meet different usage needs, and improves the aroma diffusion efficiency through a passive air supply mechanism, while maintaining convenient replacement of the fragrance chips and sustainable use of the entire device.
Smart Images

Figure CN223569713U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle-mounted article technical field, concretely is a kind of vehicle-mounted incense piece. BACKGROUND
[0002] Vehicle-mounted incense piece, also known as incense piece, is usually made of essential oil extracted from natural plants, so it does not harm the human body, and it is very convenient to use. It only needs to be hung in the car, so that the car can be filled with fragrance and the driving experience can be improved.
[0003] At present, the vehicle-mounted incense pieces used in the market usually have auxiliary shells and no auxiliary shells. Among them, the incense pieces without auxiliary shells are mostly single-structure incense pieces, which can quickly release fragrance but are easily contaminated by touch. The vehicle-mounted incense pieces with auxiliary shells have a certain peripheral protection effect on the incense piece body, but they still have the problems of quick fragrance release and inability to adjust the use time according to the use requirements. Therefore, the vehicle-mounted incense pieces in the prior art still need to be improved in terms of practicability. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model provides a vehicle-mounted incense piece, which solves the problems raised in the background art.
[0005] The utility model provides the following technical scheme: a vehicle-mounted incense piece, comprising a hollow annular incense shell, an annular mounting space is arranged in the hollow annular incense shell, an incense piece body, a limiting arc plate, an adjusting arc plate and an arc-shaped sleeve strip are arranged in the annular mounting space, the incense piece body is clamped in the hollow annular incense shell, the limiting arc plate is located at the front end of the incense piece body and can be detachably mounted in the hollow annular incense shell.
[0006] A recess is formed in the top of the limiting arc plate, the surface of the rear end of the adjusting arc plate and the surface of the rear end of the arc-shaped sleeve strip are both attached to the surface of the front end of the limiting arc plate, one end of the arc-shaped sleeve strip is connected to the bottom of the adjusting arc plate, and the adjusting arc plate can close the recess under the rotation adjustment of the arc-shaped sleeve strip.
[0007] A first T-shaped screw rod fixedly connected to the surface of the front end of the limiting arc plate is clamped in the other end of the arc-shaped sleeve strip, and a first sleeve is threadedly connected to the surface of one end of the first T-shaped screw rod.
[0008] In addition, an L-shaped limiting plate is fixedly connected to the surface of the front end of the inner ring structure of the hollow annular incense shell, one end of the L-shaped limiting plate is attached to the surface of the front end of the arc-shaped sleeve strip, and the L-shaped limiting plate provides auxiliary limiting for the subsequent rotation adjustment of the arc-shaped sleeve strip.
[0009] The top surface of the hollow annular incense shell outer ring structure is fixedly connected with a hanging strip, the hanging strip is made of elastic material, and the subsequent use of the whole device is facilitated.
[0010] The surface of the front end of the adjusting arc plate is fixedly connected with a protruding block, the protruding block adopts a semispherical structure, and the protruding block provides a force point for the rotation adjustment of the adjusting arc plate.
[0011] The surface of the hollow annular incense shell inner ring structure is provided with threads, the annular inner wall of the limiting arc plate is screw-connected with the surface of the hollow annular incense shell inner ring structure, the surface of the rear end of the incense piece body is adhesively connected with the inner wall of the rear end of the hollow annular incense shell, structural conditions for the convenient replacement of the incense piece body are provided, and the sustainable use effect of the whole device is ensured.
[0012] The surface of the rear end of the hollow annular incense shell is fixedly connected with a supporting plate, one end of the supporting plate is provided with a passive conveying assembly, and the passive conveying assembly is movably sleeved in the hollow annular incense shell inner ring structure, the passive conveying assembly comprises a second T-shaped screw rod, a fan blade and a second screw sleeve, the middle part of the second T-shaped screw rod is sleeved in the inside of one end of the supporting plate through a bearing, and the second screw sleeve is screw-connected on the surface of the other end of the second T-shaped screw rod and can be connected with the surface of one end of the supporting plate, after the supporting plate and the passive conveying assembly are combined, the passive air conveying effect can be provided, and operation conditions for the rapid diffusion of the incense piece body are provided.
[0013] The number of the fan blades is not less than two and the fan blades are equidistantly installed on the surface of one end of the second T-shaped screw rod.
[0014] The hollow annular incense shell inner ring structure is provided with a flow guide hole, the flow guide hole communicates the annular mounting space with the space of the hollow annular incense shell inner ring structure, and another operation mode for the smell diffusion of the incense piece body is provided.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] 1、The adjusting arc plate, the arc-shaped sleeve strip, the first T-shaped screw rod and the first screw sleeve are combined to form the expansion adjusting part, and then the hollow annular incense shell, the incense piece body and the limiting arc plate are combined to form the composite incense piece device, under the locking and supporting of the arc-shaped sleeve strip, the first T-shaped screw rod and the first screw sleeve, the rotation and movement of the adjusting arc plate is adjusted to adjust the shielding and covering range of the limiting slot in the limiting arc plate, specifically, when the shielding and covering range of the limiting slot is large, the diffusion channel is small, the smell diffusion speed of the incense piece body is slow, and vice versa, when the shielding and covering range of the limiting slot is small, the diffusion channel is large, the smell diffusion speed of the incense piece body is fast, and the use is flexible and convenient.
[0017] 2, the utility model discloses a supporting plate, passive conveying assembly composition pneumatic extension device is used with the composite incense piece device, extension adjusting part further combination use after above, passive conveying assembly is supported under the support of supporting plate, utilizes the airflow kinetic energy that generates in the process of car travel and carries out passive wind, and further the smell of quick incense piece body is met different use demand. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the front view schematic diagram of the utility model structural embodiment one;
[0019] Figure 2 It is the front view schematic diagram of the hollow annular incense shell in the utility model structure;
[0020] Figure 3 It is the enlarged schematic diagram of the incense piece body in the utility model structure;
[0021] Figure 4 It is the enlarged schematic diagram of the limiting arc plate in the utility model structure;
[0022] Figure 5 It is the front view schematic diagram of the utility model structural embodiment two;
[0023] Figure 6 It is the right view schematic diagram of the flow guide hole in the utility model structure;
[0024] Figure 7 It is the enlarged schematic diagram of the passive conveying assembly in the utility model structure;
[0025] Figure 8 It is the rear view schematic diagram of the passive conveying assembly in the utility model structure;
[0026] Figure 9 It is the enlarged schematic diagram of the L-shaped limiting plate in the utility model structure.
[0027] In the drawing: 1, hollow annular incense shell;2, incense piece body;3, limiting arc plate;4, adjusting arc plate;5, arc-shaped sleeve strip;6, first T-shaped screw;7, first screw sleeve;8, flow guide hole;9, hanging strip;10, L-shaped limiting plate;11, lug;12, supporting plate;13, passive conveying assembly;131, second T-shaped screw;132, fan blade;133, second screw sleeve. DETAILED DESCRIPTION
[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0029] Embodiment One
[0030] Please refer to Figures 1-5 A car-mounted incense piece includes a hollow annular incense shell 1, an annular mounting space is arranged in the inside of the hollow annular incense shell 1, an incense piece body 2, a limiting arc plate 3, an adjusting arc plate 4, and an arc-shaped sleeve strip 5 are arranged in the annular mounting space, the incense piece body 2 is clamped in the inside of the hollow annular incense shell 1, the limiting arc plate 3 is located at the front end of the incense piece body 2 and is detachably mounted in the inside of the hollow annular incense shell 1, a gap-allowing groove is arranged at the top of the limiting arc plate 3, the surface of the rear end of the adjusting arc plate 4 and the surface of the rear end of the arc-shaped sleeve strip 5 are both attached to the surface of the front end of the limiting arc plate 3, one end of the arc-shaped sleeve strip 5 is connected to the bottom of the adjusting arc plate 4, and the adjusting arc plate 4 can close the gap-allowing groove under the rotation adjustment of the arc-shaped sleeve strip 5.
[0031] The surface of the inner ring structure of the hollow annular incense shell 1 is provided with threads, the annular inner wall of the limiting arc plate 3 is threadedly connected to the surface of the inner ring structure of the hollow annular incense shell 1, and the surface of the rear end of the incense piece body 2 is adhesively connected to the inner wall of the rear end of the hollow annular incense shell 1, thereby providing a structural condition for the convenient replacement of the incense piece body 2 and ensuring the sustainable use effect of the overall device.
[0032] The front end surface of the inner ring structure of the hollow annular incense shell 1 is fixedly connected with an L-shaped limiting plate 10, one end of the L-shaped limiting plate 10 is attached to the surface of the front end of the arc-shaped sleeve strip 5, the L-shaped limiting plate 10 is used to provide auxiliary limiting for the subsequent rotation adjustment of the arc-shaped sleeve strip 5, and the top surface of the outer ring structure of the hollow annular incense shell 1 is fixedly connected with a hanging strip 9 made of elastic material, thereby facilitating the hair-hanging use of the overall device.
[0033] The front end surface of the adjusting arc plate 4 is fixedly connected with a convex block 11 in a hemispherical structure, and the convex block 11 is used to provide a force point for the rotation adjustment of the adjusting arc plate 4.
[0034] The other end of the arc-shaped sleeve strip 5 is clamped with a first T-shaped screw rod 6 fixedly connected to the front end surface of the limiting arc plate 3, and the surface of one end of the first T-shaped screw rod 6 is threadedly connected with a first screw sleeve 7.
[0035] Working principle: when in use, first, the first screw sleeve 7 is screwed to temporarily separate the first screw sleeve 7 from the arc-shaped sleeve strip 5, then, the adjusting arc plate 4 is rotated and moved to adjust the shielding coverage of the gap-allowing groove according to actual needs, thereby deforming and adjusting the flavor spreading speed of the incense piece body 2, specifically, the larger the shielding coverage of the gap-allowing groove, the smaller the diffusion channel, and the slower the flavor spreading speed of the incense piece body 2, and vice versa.
[0036] And adjust the process of rotating the arc plate 4, the arc sleeve 5 will be with the first T type screw 6 for card joint guide, after adjusting the arc plate 4 to the appropriate position, reset lock first screw 7, make first screw 7 recontact the arc sleeve 5 after adjusting for limiting, and then use the hanging strip 9 and the existing connecting rope hanging in the vehicle body, that is.
[0037] Example two
[0038] Please refer to Figures 3-9 A vehicle-mounted incense piece, comprising a hollow annular incense shell 1, an annular mounting space is arranged in the hollow annular incense shell 1, an incense piece body 2, a limiting arc plate 3, an adjusting arc plate 4 and an arc sleeve 5 are arranged in the annular mounting space, the incense piece body 2 is clamped in the inside of the hollow annular incense shell 1, the limiting arc plate 3 is located at the front end of the incense piece body 2 and is detachably mounted in the inside of the hollow annular incense shell 1, a recess is formed in the top of the limiting arc plate 3, the surface of the rear end of the adjusting arc plate 4 and the surface of the rear end of the arc sleeve 5 are both in surface contact with the surface of the front end of the limiting arc plate 3, one end of the arc sleeve 5 is connected with the bottom of the adjusting arc plate 4, and the adjusting arc plate 4 can close the recess under the rotation adjustment of the arc sleeve 5.
[0039] The surface of the inner ring structure of the hollow annular incense shell 1 is provided with threads, the annular inner wall of the limiting arc plate 3 is connected with the surface threads of the inner ring structure of the hollow annular incense shell 1, and the surface of the rear end of the incense piece body 2 is adhesively connected with the inner wall of the rear end of the hollow annular incense shell 1, thereby providing structural conditions for the convenient replacement of the incense piece body 2 and ensuring the sustainable use effect of the overall device.
[0040] The front end surface of the inner ring structure of the hollow annular incense shell 1 is fixedly connected with an L-shaped limiting plate 10, one end of the L-shaped limiting plate 10 is in surface contact with the front end surface of the arc sleeve 5, the L-shaped limiting plate 10 is used to provide auxiliary limiting for the subsequent rotation adjustment of the arc sleeve 5, and the top surface of the outer ring structure of the hollow annular incense shell 1 is fixedly connected with a hanging strip 9 made of elastic material, thereby facilitating the hanging use of the overall device.
[0041] The front end surface of the adjusting arc plate 4 is fixedly connected with a convex block 11 in a hemispherical structure, and the convex block 11 is used to provide a force point for the rotation adjustment of the adjusting arc plate 4.
[0042] The other end of the arc sleeve 5 is clamped with a first T type screw 6 fixedly connected with the front end surface of the limiting arc plate 3, and the surface of one end of the first T type screw 6 is threadedly connected with a first screw sleeve 7.
[0043] The surface of the rear end of the hollow annular incense shell 1 is fixedly connected with a support plate 12, one end of the support plate 12 is provided with a passive conveying assembly 13, and the passive conveying assembly 13 is movably sleeved in the inner ring structure of the hollow annular incense shell 1. The passive conveying assembly 13 comprises a second T-shaped screw 131, a fan blade 132 and a second screw sleeve 133. The middle part of the second T-shaped screw 131 is sleeved on the inside of one end of the support plate 12 through a bearing. The second screw sleeve 133 is threadedly connected to the surface of the other end of the second T-shaped screw 131 and can be connected with the surface of one end of the support plate 12. After the support plate 12 and the passive conveying assembly 13 are combined, a passive air conveying effect can be provided, thereby providing operating conditions for the rapid diffusion of the incense piece body 2. The number of the fan blades 132 is not less than two and is equally installed on the surface of one end of the second T-shaped screw 131.
[0044] Working principle: when the smell of the incense piece body 2 needs to be rapidly diffused, first twist the first screw sleeve 7 to temporarily separate the first screw sleeve 7 from the arc-shaped sleeve strip 5. Then, according to the actual needs, rotate and move the adjusting arc plate 4 until the shielding and covering of the gap reaches the minimum range. During the rotation and adjustment of the adjusting arc plate 4, the arc-shaped sleeve strip 5 will be clamped and guided with the first T-shaped screw 6. After the adjusting arc plate 4 is adjusted to the appropriate position, reset and lock the first screw sleeve 7 to make the first screw sleeve 7 re-contact the adjusted arc-shaped sleeve strip 5 for limiting.
[0045] The hanging strip 9 is hung with the existing connecting rope in the vehicle body. At the same time, during the movement of the vehicle, open the window and twist the second screw sleeve 133 to temporarily move away from the support plate 12. Then, the airflow generated during the driving of the vehicle enters the vehicle body, thereby passively conveying the plurality of fan blades 132, so as to aerodynamically and rapidly diffuse the incense piece body 2.
[0046] Embodiment three
[0047] Please refer to Figures 3-9 A vehicle-mounted incense piece, comprising a hollow annular incense shell 1, an annular mounting space is arranged in the hollow annular incense shell 1, and an incense piece body 2, a limiting arc plate 3, an adjusting arc plate 4 and an arc-shaped sleeve strip 5 are arranged in the annular mounting space. The incense piece body 2 is clamped in the inside of the hollow annular incense shell 1. The limiting arc plate 3 is located at the front end of the incense piece body 2 and is detachably mounted in the inside of the hollow annular incense shell 1. A gap is formed in the top of the limiting arc plate 3. The surface of the rear end of the adjusting arc plate 4 and the surface of the rear end of the arc-shaped sleeve strip 5 are both connected with the surface of the front end of the limiting arc plate 3. One end of the arc-shaped sleeve strip 5 is connected with the bottom of the adjusting arc plate 4, and the adjusting arc plate 4 can close the gap under the rotation and adjustment of the arc-shaped sleeve strip 5.
[0048] The surface of the inner ring structure of the hollow annular incense shell 1 is provided with threads, the annular inner wall of the limiting arc plate 3 is connected with the surface threads of the inner ring structure of the hollow annular incense shell 1, the surface of the rear end of the incense piece body 2 is glued and connected with the inner wall of the rear end of the hollow annular incense shell 1, which provides structural conditions for the convenient replacement of the incense piece body 2, thereby ensuring the sustainable use effect of the overall device;
[0049] The front end surface of the inner ring structure of the hollow annular incense shell 1 is fixedly connected with an L-shaped limiting plate 10, one end of the L-shaped limiting plate 10 is connected on the surface of the front end of the arc-shaped sleeve strip 5, and the L-shaped limiting plate 10 is used to provide auxiliary limiting for the subsequent rotation adjustment of the arc-shaped sleeve strip 5, the top surface of the outer ring structure of the hollow annular incense shell 1 is fixedly connected with a hanging strip 9 made of elastic material, which facilitates the hanging use of the overall device;
[0050] The front end surface of the adjusting arc plate 4 is fixedly connected with a protruding block 11 in a hemispherical structure, which provides a force point for the rotation adjustment of the adjusting arc plate 4;
[0051] The other end of the arc-shaped sleeve strip 5 is internally connected with a first T-shaped screw rod 6 fixedly connected with the front end surface of the limiting arc plate 3, and the surface of one end of the first T-shaped screw rod 6 is threadedly connected with a first screw sleeve 7;
[0052] The rear end surface of the hollow annular incense shell 1 is fixedly connected with a supporting plate 12, one end of the supporting plate 12 is installed with a passive conveying assembly 13, and the passive conveying assembly 13 is movably sleeved in the inner ring structure of the hollow annular incense shell 1, the passive conveying assembly 13 comprises a second T-shaped screw rod 131, a fan blade 132 and a second screw sleeve 133, the middle part of the second T-shaped screw rod 131 is sleeved in the inner part of one end of the supporting plate 12 through a bearing, the second screw sleeve 133 is threadedly connected on the surface of the other end of the second T-shaped screw rod 131 and can be connected with the surface of one end of the supporting plate 12, after the combination of the supporting plate 12 and the passive conveying assembly 13, the passive air conveying effect can be provided, thereby providing operation conditions for the rapid diffusion of the incense piece body 2, the number of the fan blades 132 is not less than two and is equally installed on the surface of one end of the second T-shaped screw rod 131, a plurality of flow guide holes 8 are formed in the inner ring structure of the hollow annular incense shell 1, the flow guide holes 8 communicate the annular mounting space with the space of the inner ring structure of the hollow annular incense shell 1, thereby providing another operation mode for the odor diffusion of the incense piece body 2.
[0053] Working principle: when the medium speed diffusion of the flavor piece body 2 is needed, the first screw sleeve 7 is twisted first, so that the first screw sleeve 7 is temporarily separated from the arc sleeve strip 5, then the adjusting arc plate 4 is rotated and moved, until the clearance groove is fully closed, and in the process of rotating and adjusting the adjusting arc plate 4, the arc sleeve strip 5 will be clamped and guided with the first T-shaped screw rod 6, after the adjusting arc plate 4 is adjusted to the appropriate position, the first screw sleeve 7 is reset and locked, so that the first screw sleeve 7 recontacts the adjusted arc sleeve strip 5 for limiting;
[0054] The hanging strip 9 is hung with the existing connecting rope in the vehicle body, at the same time, in the process of vehicle movement, the vehicle window is opened, the second screw sleeve 133 is twisted, so that it is temporarily away from the supporting plate 12, then the airflow brought in the process of automobile driving enters the vehicle body, and then the airflow entrains multiple fan leaves 132 to passively blow, then the airflow contacts the flavor piece body 2 through multiple guide holes 8, and actively aerodynamically diffuses the flavor of the flavor piece body 2.
[0055] It should be noted that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. In the drawings of the utility model, the filling pattern is only used to distinguish the layers, and is not limited in any other way.
[0056] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A car air freshener, comprising a hollow annular air freshener shell (1), wherein the hollow annular air freshener shell (1) has an annular mounting space inside, characterized in that: The annular installation space is provided with a fragrance chip body (2), a limiting arc plate (3), an adjusting arc plate (4), and an arc-shaped sleeve (5). The fragrance chip body (2) is snapped into the interior of the hollow annular fragrance shell (1). The limiting arc plate (3) is located at the front end of the fragrance chip body (2) and is detachably installed inside the hollow annular fragrance shell (1). The top of the limiting arc plate (3) is provided with a clearance groove. The rear surface of the adjusting arc plate (4) and the rear surface of the arc sleeve (5) are both in contact with the front surface of the limiting arc plate (3). One end of the arc sleeve (5) is connected to the bottom of the adjusting arc plate (4), and the adjusting arc plate (4) can close the clearance groove under the rotation adjustment of the arc sleeve (5). The other end of the arc-shaped sleeve (5) is internally engaged with a first T-shaped screw (6) fixedly connected to the front surface of the limiting arc plate (3), and a first screw sleeve (7) is threadedly connected to one end of the first T-shaped screw (6).
2. The car air freshener according to claim 1, characterized in that: An L-shaped limiting plate (10) is fixedly connected to the front surface of the inner ring structure of the hollow annular incense shell (1), and one end of the L-shaped limiting plate (10) is attached to the front surface of the arc-shaped sleeve (5).
3. The car air freshener according to claim 1, characterized in that: The top surface of the outer ring structure of the hollow annular incense shell (1) is fixedly connected with a hanging strip (9), which is made of elastic material.
4. The car air freshener according to claim 1, characterized in that: The front surface of the adjusting arc plate (4) is fixedly connected with a protrusion (11), which has a hemispherical structure.
5. A car air freshener according to claim 1, characterized in that: The surface of the inner ring structure of the hollow annular incense shell (1) is provided with threads, the annular inner wall of the limiting arc plate (3) is threadedly connected to the surface of the inner ring structure of the hollow annular incense shell (1), and the surface of the rear end of the incense chip body (2) is adhesively connected to the inner wall of the rear end of the hollow annular incense shell (1).
6. A car air freshener according to claim 1, characterized in that: A support plate (12) is fixedly connected to the rear end surface of the hollow annular incense shell (1). A passive conveying component (13) is installed at one end of the support plate (12), and the passive conveying component (13) is movably sleeved in the inner ring structure of the hollow annular incense shell (1). The passive conveying component (13) includes a second T-shaped screw (131), a fan blade (132), and a second threaded sleeve (133). The middle part of the second T-shaped screw (131) is sleeved inside one end of the support plate (12) through a bearing. The second threaded sleeve (133) is threadedly connected to the surface of the other end of the second T-shaped screw (131) and can fit and connect with the surface of one end of the support plate (12).
7. A car air freshener according to claim 6, characterized in that: The number of fan blades (132) is not less than two and they are installed at equal intervals on the surface of one end of the second T-shaped screw (131).
8. A car air freshener according to claim 1, characterized in that: The hollow annular incense shell (1) has a flow guide hole (8) on its inner ring structure, which connects the annular installation space with the space of the inner ring structure of the hollow annular incense shell (1).