Hair dryer accessory and hair dryer suite

Abstract

The utility model relates to the technical field of hair care, in particular to a hair dryer accessory and a hair dryer suite, which comprises an air supply cylinder provided with an air supply channel and a cylinder air outlet communicated with the air supply channel; the air supply column body is sleeved with the fixed shell, the fixed shell is fixedly arranged relative to the air supply column body, and a shell air outlet is formed in the position, opposite to the column body air outlet, of the fixed shell; the rotary inner shell is rotationally mounted between the air supply column body and the fixed outer shell around the axis of the air supply column body, and is provided with at least two groups of differentiated ventilation windows; when the rotary inner shell is driven to rotate, the cylinder air outlet and the outer shell air outlet are sequentially communicated through different ventilation windows, so that air outlet power gear adjustment of the outer shell air outlet is achieved. The blower accessory and the blower suite can effectively solve the problem that an existing accessory cannot output wind of different wind power gears, and consequently diversified use requirements cannot be met.

Description

Technical Field

[0001] This utility model relates to the field of hair care technology, and in particular to a hair dryer accessory and hair dryer kit. Background Technology

[0002] Hair dryers are common household appliances used to dry and style hair. The nozzle of a hair dryer blows air out. During use, users typically attach hair dryer accessories to the nozzle. These accessories help users better control the airflow and heat, achieving more ideal hairstyles while protecting hair health.

[0003] Hair dryer accessories on the market are generally divided into concentrator nozzles and diffuser nozzles. Concentrator nozzles concentrate airflow and are suitable for precise styling; diffuser nozzles disperse airflow to reduce the direct impact of hot air on the hair and protect hair quality.

[0004] Traditional hair dryer accessories have very limited functionality. They either function simply as a concentrator to achieve a concentrated airflow mode (centralized airflow with a higher airflow level) or as a diffuser to achieve a diffused airflow mode (dispersed airflow with a lower airflow level). If a user needs to switch from diffused airflow mode to concentrated airflow mode during hair drying, they need to remove the diffuser from the hair dryer's air outlet and replace it with a concentrator.

[0005] Furthermore, in actual use, users often need to switch between different airflow levels to achieve different hair styling effects. For example, when a user wants to create curls, they need the hairdryer attachment to use the concentrated airflow mode to produce a strong airflow. Or, when a user needs to dry their hair, they need the hairdryer attachment to use the diffuser mode to produce a gentle, dispersed airflow.

[0006] Therefore, in order to meet users' diverse styling needs, hair dryer accessories need to be able to output airflow at different power levels. However, traditional hair dryer accessories cannot meet this requirement.

[0007] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0008] One objective of this invention is to provide a hair dryer accessory and hair dryer kit that can effectively solve the problem that existing accessories cannot output different wind speed levels, thus failing to meet diverse usage needs.

[0009] To achieve the above objectives, this utility model provides a hair dryer accessory, comprising:

[0010] An air supply column, wherein the air supply column is provided with an air supply channel and an air outlet connected to the air supply channel;

[0011] A fixed outer shell is sleeved on the outside of the air supply column and fixedly disposed relative to the air supply column. An air outlet is provided on the fixed outer shell at a position opposite to the air outlet of the column.

[0012] A rotating inner shell is rotatably mounted between the air supply column and the fixed outer shell around the axis of the air supply column, and is provided with at least two sets of differentiated ventilation windows.

[0013] When the inner shell is driven to rotate, the air outlet of the column and the air outlet of the outer shell are connected in sequence through different ventilation windows to realize the adjustment of the airflow level of the air outlet of the outer shell.

[0014] Optionally, the air outlet of the outer casing includes a centrally located strip-shaped air outlet and a plurality of side strip-shaped air outlets arranged on both sides of the centrally located strip-shaped air outlet;

[0015] The width of the central strip-shaped air outlet is greater than the width of the side strip-shaped air outlets.

[0016] Optionally, one set of the ventilation windows includes a plurality of spaced-apart strip-shaped ventilation slots;

[0017] When one of the first-level strip-shaped ventilation slots is directly opposite the central strip-shaped air outlet, the remaining first-level strip-shaped ventilation slots are offset from the air outlet of the outer casing to restrict the remaining first-level strip-shaped ventilation slots from communicating with the air outlet of the outer casing.

[0018] Optionally, one set of the ventilation windows includes two centrally located ventilation slots and several side ventilation slots arranged on both sides of the two centrally located ventilation slots.

[0019] in:

[0020] The width of the central strip ventilation groove in the second gear is greater than the width of the side strip ventilation groove in the second gear.

[0021] The number of the second-level side strip ventilation slots is less than the number of the side strip air outlets, and when the second-level central strip ventilation slot is directly opposite the central strip air outlet, each of the second-level side strip ventilation slots is directly opposite one of the side strip air outlets.

[0022] Optionally, one set of the ventilation windows includes three centrally located strip ventilation slots and several three-section side strip ventilation slots arranged on both sides of the three centrally located strip ventilation slots.

[0023] in:

[0024] The width of the central strip ventilation slot in the three-stage design is greater than the width of the side strip ventilation slots in the three-stage design.

[0025] The number of the three-level side strip ventilation slots is equal to the number of the side strip air outlets, and when the central strip ventilation slot of the three-level is directly opposite the central strip air outlet, each of the three-level side strip ventilation slots is directly opposite one of the side strip air outlets.

[0026] Optionally, one set of the ventilation windows includes a row of three-level central ventilation holes spaced apart, and several rows of three-level side ventilation holes arranged on both sides of each row of three-level central ventilation holes.

[0027] in:

[0028] The diameter of the central ventilation hole in the three gears is larger than the diameter of the side ventilation holes in the three gears.

[0029] The number of columns of the three-level side ventilation holes is equal to the number of the side strip air outlets, and when the central ventilation hole of the three-level is directly opposite the central strip air outlet, each column of the three-level side ventilation holes is directly opposite one of the side strip air outlets.

[0030] Optional, also includes:

[0031] A gear shift knob is rotatably mounted on the top of the fixed outer shell, and the top of the rotating inner shell is provided with an inner shell insert rod that extends upward to be inserted into the gear shift knob.

[0032] Optionally, the number of inner shell inserts is at least two, and the distances from the two inner shell inserts to the axis of the rotating inner shell are different;

[0033] The top of the fixed outer shell is provided with a fan-shaped channel for each inner shell insert rod to pass through, and a limiting baffle is provided at the end of the fan-shaped channel to restrict the corresponding inner shell insert rod from continuing to rotate.

[0034] Optionally, the column air outlet is located on the circumferential surface of the air supply column, and the air supply column is provided with several L-shaped baffles to divide the air supply channel into several L-shaped air ducts that connect to the column air outlet.

[0035] On the other hand, a hair dryer kit is provided, including a hair dryer body and a hair dryer accessory that is detachably installed at the air outlet of the hair dryer body.

[0036] The beneficial effects of this utility model are as follows: It provides a hair dryer accessory and hair dryer kit. When the rotating inner shell rotates around the axis of the air supply column, at least two sets of differentiated ventilation windows on it are sequentially connected to the air outlet of the column and the air outlet of the fixed outer shell. When the opening characteristics of the ventilation windows change, the cross-sectional area and flow path of the airflow channel undergo physical changes, thereby creating different airflow dynamic effects.

[0037] Therefore, the hair dryer accessory and hair dryer kit provided by this utility model can effectively solve the problem that existing accessories cannot output wind at different wind speeds, thus failing to meet diverse usage needs. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of the structure of the hair dryer accessory provided in the embodiment;

[0040] Figure 2 A schematic diagram of the structure of the hair dryer accessory provided in the embodiment when disassembling the gear shift knob;

[0041] Figure 3 An exploded view of the hair dryer accessory provided in the embodiment;

[0042] Figure 4 A cross-sectional schematic diagram of the hair dryer accessory provided in the embodiment when the air is being discharged at the first setting;

[0043] Figure 5 A schematic diagram of the structure of the first type of ventilation window provided in the embodiment;

[0044] Figure 6 A schematic diagram of the structure of the second type of ventilation window provided in the embodiment;

[0045] Figure 7 A schematic diagram of the structure of the third type of ventilation window provided in the embodiment;

[0046] Figure 8 A schematic diagram of the structure of the fourth type of ventilation window provided in the embodiment;

[0047] Figure 9 This is a cross-sectional schematic diagram of the air supply column provided in the embodiment.

[0048] In the picture:

[0049] 1. Air supply column; 101. Air supply duct; 102. Column air outlet; 103. Rotary shaft boss; 104. L-shaped partition; 105. L-shaped air duct;

[0050] 2. Fixed outer casing; 201. Fan ring channel; 202. Limiting baffle; 203. Outer casing air outlet; 2031. Central strip air outlet; 2032. Side strip air outlet;

[0051] 3. Rotate the inner shell;

[0052] 301. Inner shell insert rod;

[0053] 302. Shaft hole;

[0054] 303. Type I ventilation window; 3031. Single-slot strip ventilation groove;

[0055] 304. Second type of ventilation window; 3041. Second-stage central strip ventilation slot; 3042. Second-stage side strip ventilation slot;

[0056] 305. Type III ventilation window; 3051. Three-stage central strip ventilation slot; 3052. Three-stage side strip ventilation slot;

[0057] 306. Type IV ventilation window; 3061. Three-position central ventilation hole; 3062. Three-position side ventilation hole;

[0058] 307. Anti-clogging ventilation groove;

[0059] 4. Gear shift knob. Detailed Implementation

[0060] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0061] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0062] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0063] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0064] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0065] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0066] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0067] This utility model provides a hair dryer accessory and hair dryer kit, suitable for home or professional hair styling scenarios. By using a mechanically rotating and adjustable ventilation window structure, it solves the problems of traditional hair dryer accessories having limited functions and requiring frequent replacement, and enables flexible switching of multiple wind speeds and airflow modes to meet diverse needs such as drying, styling, and hair care.

[0068] The hair dryer kit provided in this embodiment includes a hair dryer body (not shown in the attached drawings) and a hair dryer accessory that can be detachably installed at the air outlet of the hair dryer body.

[0069] See Figures 1-3 The hair dryer accessory includes an air delivery column 1, a fixed outer shell 2, and a rotating inner shell 3.

[0070] The air supply column 1 is provided with an air supply channel 101 and a column outlet 102 communicating with the air supply channel 101. The fixed outer shell 2 is sleeved on the outside of the air supply column 1 and fixedly disposed relative to the air supply column 1. The fixed outer shell 2 is provided with an outer shell outlet 203 at a position opposite to the column outlet 102. The rotating inner shell 3 is rotatably installed between the air supply column 1 and the fixed outer shell 2 around the axis of the air supply column 1, and is provided with at least two sets of differentiated ventilation windows.

[0071] When the inner shell 3 is driven to rotate, the column air outlet 102 and the outer shell air outlet 203 are connected in sequence through different ventilation windows to realize the adjustment of the airflow level of the outer shell air outlet 203.

[0072] The hair dryer accessory and hair dryer kit provided in this embodiment, after the hair dryer accessory is installed at the air outlet of the hair dryer body, the working process is as follows:

[0073] (1) Air intake stage: The airflow generated by the blower body flows through the air supply channel 101 of the air supply column 1 to the air outlet 102 of the column.

[0074] (2) Ventilation window switching: The user rotates the inner shell 3 so that it rotates around the axis of the air supply column 1. At this time, the different ventilation windows on the rotating inner shell 3 are aligned with the air outlet 102 of the column and the air outlet 203 of the fixed outer shell 2 in sequence.

[0075] (3) Wind speed adjustment:

[0076] ① Concentrated air mode (high wind speed): When the ventilation window opening is large or the shape is concentrated, the airflow passes directly through the ventilation window, with low resistance and concentrated and strong wind, which is suitable for precise styling (such as curling hair).

[0077] ② Diffuse air mode (low wind speed): When the ventilation window opening is small or designed to be diffused, the airflow is dispersed and slowed down, the wind is gentle and covers a wide range, which is suitable for reducing heat damage when drying hair.

[0078] ③ Intermediate setting: The rotating inner shell 3 can also be equipped with multiple sets of different ventilation windows, providing multiple wind speed adjustments to meet different design requirements.

[0079] (4) Air outlet direction: The adjusted airflow is finally blown out through the air outlet 203 of the fixed outer shell 2 to realize the dynamic switching of wind force and mode.

[0080] The above-mentioned hair dryer accessories and kits, through the innovative mechanical structure of the rotating inner shell 3, achieve integrated control of multiple wind speed modes within a single accessory. The technical principle is as follows: when the rotating inner shell 3 rotates around the axis of the air supply column 1, at least two sets of differentiated ventilation windows on it sequentially connect with the column's air outlet 102 and the fixed outer shell 2's outer shell air outlet 203. When the opening characteristics of the ventilation windows (including opening area, geometry, and distribution) change, the cross-sectional area and flow path of the airflow channel undergo physical changes, thereby creating different airflow dynamic effects.

[0081] For example, when the ventilation window adopts a narrow strip structure, the airflow is concentrated to form a high-speed wind-gathering mode; when switched to a porous honeycomb window, the airflow is divided into multiple fine streams and generates a turbulence effect, achieving a wind-dispersing and attenuating wind force mode. This dynamic adjustment mechanism based on window differentiation design allows users to switch wind speed levels by rotating the window without disassembling the accessories.

[0082] Meanwhile, the nested structure of the fixed outer shell 2 and the rotating inner shell 3 ensures the stability of airflow guidance, while the air supply column 1, as the core supporting component, achieves precise encapsulation of the rotating mechanism through axial constraint and radial clearance control. Thus, this solution constructs an adjustable composite air duct system within a single accessory, fundamentally solving the problem of frequent disassembly and replacement caused by the single function of accessories in traditional technologies.

[0083] Therefore, the hair dryer accessory and hair dryer kit provided by this utility model can effectively solve the problem that existing accessories cannot output wind at different wind speeds, thus failing to meet diverse usage needs.

[0084] Optionally, the top center of the air supply column 1 is provided with a rotating shaft boss 103, and the top center of the rotating inner shell 3 is provided with a rotating shaft hole 302 for the rotating shaft boss 103 to be inserted, thereby enabling the rotating inner shell 3 to rotate around the axis.

[0085] See Figure 4In this embodiment, the outer shell air outlet 203 includes a centrally located strip-shaped air outlet 2031 and a plurality of side strip-shaped air outlets 2032 arranged on both sides of the centrally located strip-shaped air outlet 2031.

[0086] The width of the central strip-shaped air outlet 2031 is greater than the width of the side strip-shaped air outlet 2032.

[0087] The following description uses four side strip air outlets 2032 (two on each side of the central strip air outlet 2031) and four groups of ventilation windows (referred to as "first type ventilation window 303", "second type ventilation window 304", "third type ventilation window 305" and "fourth type ventilation window 306" respectively) as an example. In some other embodiments, the number of side strip air outlets 2032 may also be two (one on each side of the central strip air outlet 2031) or six (three on each side of the central strip air outlet 2031), etc. The number of ventilation windows may also be two, three, five or even more. This utility model does not limit this.

[0088] (1) Type 1 ventilation window 303

[0089] See Figure 4 and Figure 5 In this embodiment, the first type of ventilation window 303 includes a plurality of spaced-apart strip-shaped ventilation slots 3031;

[0090] When one of the first-level strip-shaped ventilation slots 3031 is directly opposite the central strip-shaped air outlet 2031, the remaining first-level strip-shaped ventilation slots 3031 are all misaligned with the outer shell air outlet 203 to restrict the remaining first-level strip-shaped ventilation slots 3031 from communicating with the outer shell air outlet 203.

[0091] When one of the first-position strip-shaped ventilation slots 3031 of the rotating inner shell 3 is aligned with the central strip-shaped air outlet 2031, it is the first position (high wind speed) of the hair dryer accessory.

[0092] Optionally, there are at least two first-stage strip ventilation slots 3031, preferably three. In the first stage, only the first-stage strip ventilation slot 3031 directly opposite the central strip air outlet 2031 is actually ventilating, while the other two first-stage strip ventilation slots 3031 are designed to prevent air blockage.

[0093] Specifically, the width of a single single-level strip ventilation slot 3031 is relatively small. If only one single-level strip ventilation slot 3031 is provided, the distance between the first type ventilation window 303 and the second type ventilation window 304 is relatively large. Therefore, when rotating the inner shell 3 from the first level to the second level, after the airflow leaves the column outlet 102, it needs to face the side wall of the rotating inner shell 3 without ventilation windows for a long time. Before fully switching to the second level, the airflow cannot flow out through the outer shell outlet 203. This will result in excessively high air pressure in the air supply channel 101, that is, the so-called air blockage phenomenon.

[0094] By setting up multiple single-level strip-shaped ventilation slots 3031, each time the rotating inner shell 3 rotates by a small angle, a single-level strip-shaped ventilation slot 3031 will be connected to the central strip-shaped air outlet 2031 or the side strip-shaped air outlet 2032, thereby avoiding the situation where airflow cannot be discharged for a long time and causes air blockage.

[0095] Furthermore, the ventilation holes or ventilation slots of the second type ventilation window 304, the third type ventilation window 305, and the fourth type ventilation window 306 are distributed relatively dispersedly, and the interval between two adjacent groups of ventilation windows is small. The gear switching can be completed with a slight rotation. There is no situation where the airflow is directed at the side wall of the rotating inner shell 3 without ventilation windows for a long time, so there is no longer a problem of air blockage.

[0096] Of course, if the size of the rotating inner shell 3 is large and the distance between two adjacent sets of ventilation windows is large, anti-blockage ventilation grooves 307 can also be added to achieve the anti-blockage effect.

[0097] (2) Type II ventilation window 304

[0098] See Figure 6 The second type of ventilation window 304 includes a two-stage central strip ventilation groove 3041 and a plurality of two-stage side strip ventilation grooves 3042 arranged on both sides of the two-stage central strip ventilation groove 3041.

[0099] in:

[0100] The width of the central strip ventilation groove 3041 in the second gear position is greater than the width of the side strip ventilation groove 3042 in the second gear position.

[0101] The number of the second-level side strip ventilation slots 3042 is less than the number of the side strip air outlets 2032, and when the second-level central strip ventilation slot 3041 is directly opposite the central strip air outlet 2031, each of the second-level side strip ventilation slots 3042 is directly opposite one of the side strip air outlets 2032.

[0102] When the second type of ventilation window 304 of the rotating inner shell 3 is aligned with the air outlet 203 of the fixed outer shell 2, it is the second setting (medium speed) of the hair dryer accessory. In the first setting, only the central strip-shaped air outlet 2031 emits air; in the second setting, both the central strip-shaped air outlet 2031 and some of the side strip-shaped air outlets 2032 adjacent to the central strip-shaped air outlet 2031 can emit air. Therefore, the area occupied by the entire air outlet in the second setting is larger than that in the first setting. Thus, compared with the first setting, the airflow output by the hair dryer accessory in the second setting is more dispersed and the wind force is weaker.

[0103] (3) Type III ventilation window 305

[0104] See Figure 7 The third type of ventilation window 305 includes a three-level central strip ventilation channel 3051 and a number of three-level side strip ventilation channels 3052 arranged on both sides of the three-level central strip ventilation channel 3051.

[0105] in:

[0106] The width of the central strip ventilation groove 3051 of the three levels is greater than the width of the side strip ventilation groove 3052 of the three levels.

[0107] The number of the three-level side strip ventilation slots 3052 is equal to the number of the side strip air outlets 2032, and when the three-level central strip ventilation slot 3051 is directly opposite the central strip air outlet 2031, each of the three-level side strip ventilation slots 3052 is directly opposite one of the side strip air outlets 2032.

[0108] When the third type of ventilation window 305 of the rotating inner shell 3 is aligned with the air outlet 203 of the fixed outer shell 2, it is the third setting (diffuse air setting) of the hair dryer accessory. In the second setting, only the central strip air outlet 2031 and some of the side strip air outlets 2032 adjacent to the central strip air outlet 2031 can emit air; in the third setting, the central strip air outlet 2031 and all the side strip air outlets 2032 can emit air; therefore, the area occupied by the entire air outlet in the third setting is larger than that in the second setting. Thus, compared with the second setting, the airflow output by the hair dryer accessory in the third setting will be further dispersed, and the airflow will be further weakened.

[0109] (4) Type IV ventilation window 306

[0110] See Figure 8 The fourth type of ventilation window 306 includes a row of three-level central ventilation holes 3061 spaced apart, and several rows of three-level side ventilation holes 3062 arranged on both sides of each of the three-level central ventilation holes 3061.

[0111] in:

[0112] The diameter of the central ventilation hole 3061 of the three gears is larger than the diameter of the side ventilation holes 3062 of the three gears.

[0113] The number of columns of the three-level side ventilation holes 3062 is equal to the number of the side strip air outlets 2032, and when the three-level central ventilation hole 3061 is directly opposite the central strip air outlet 2031, each column of the three-level side ventilation holes 3062 is directly opposite one of the side strip air outlets 2032.

[0114] When the fourth type of ventilation window 306 of the rotating inner shell 3 is aligned with the air outlet 203 of the fixed outer shell 2, it is the fourth setting (soft wind setting) of the hair dryer accessory. In the third and fourth settings, the central strip-shaped air outlet 2031 and all the side strip-shaped air outlets 2032 can emit air; therefore, the area occupied by the entire air outlet is the same in the third and fourth settings. Thus, the air outlet does not become more dispersed in the fourth setting. However, since the ventilation structure of the rotating inner shell 3 in the fourth setting is an array of round holes, compared with the long strip-shaped through-slots in the third setting, the position between the array of round holes has a certain obstruction effect on the airflow. Therefore, the final airflow force will decrease. Thus, compared with the third setting, although the airflow output by the hair dryer accessory in the fourth setting is not more dispersed, the airflow force will be further weakened, thereby achieving a soft wind effect.

[0115] See Figure 2 In this embodiment, the hair dryer accessory also includes a shift knob 4, which is rotatably mounted on the top of the fixed outer shell 2, and the top of the rotating inner shell 3 is provided with an inner shell insert rod 301 that extends upward to be inserted into the shift knob 4.

[0116] Optionally, the number of inner shell insert rods 301 is at least two, and the distances from the two inner shell insert rods 301 to the axis of the rotating inner shell 3 are different.

[0117] The top of the fixed outer shell 2 is provided with a fan-shaped channel 201 for each inner shell insert 301 to pass through, and a limiting baffle 202 is provided at the end of the fan-shaped channel 201 to limit the corresponding inner shell insert 301 from continuing to rotate.

[0118] When the fixed outer shell 2 is fitted onto the outside of the rotating inner shell 3, the inner shell insertion rod 301 can extend upward through the corresponding fan ring channel 201 and be inserted into the insertion hole at the bottom of the shift knob 4, thereby achieving synchronous rotational limiting between the rotating inner shell 3 and the shift knob 4. The fan ring channel 201 also serves as a guide, allowing the rotating inner shell 3 to rotate around the axis of the air supply column 1.

[0119] When only one inner shell insert 301 is provided at the top of the rotating inner shell 3, the rotation of the inner shell 3 will be very unstable if only this inner shell insert 301 is used to control the rotation of the inner shell 3. Providing two inner shell inserts 301 can control the rotation of the inner shell 3 more stably. Therefore, in this embodiment, two inner shell inserts 301 are provided at the top of the inner shell. Of course, in some other embodiments, more inner shell inserts 301 can be provided, and this utility model does not limit this.

[0120] Because a limiting baffle 202 is provided at the end of the fan ring channel 201, the rotating inner shell 3 cannot rotate freely in one direction. That is, when the rotating inner shell 3 rotates to switch the air outlet speed:

[0121] When rotating in the forward direction, you can only switch gears in the following order: first gear - second gear - third gear - fourth gear;

[0122] Reverse rotation can only be switched in the following order: fourth gear - third gear - second gear - first gear.

[0123] When rotating in the forward direction, the inner shell 3 cannot continue to rotate when it reaches the fourth gear due to the blocking effect of the limit baffle 202 at one end. Therefore, it is not possible to switch directly from the fourth gear to the first gear.

[0124] Similarly, when rotating in the opposite direction, the inner shell 3 cannot continue to rotate when it reaches the first gear due to the blocking effect of the limit baffle 202 at the other end. Therefore, it is not possible to switch directly from the first gear to the fourth gear.

[0125] See Figure 9 In this embodiment, the column air outlet 102 is located on the circumferential surface of the air supply column 1. The air supply column 1 is provided with a plurality of L-shaped partitions 104, which divide the air supply channel 101 into a plurality of L-shaped air ducts 105 that connect to the column air outlet 102.

[0126] Optionally, the corner of the L-shaped air duct 105 is a curved, rounded shape to reduce wind resistance, ensure smooth airflow, and reduce drag.

[0127] The air supply channel 101 of the air supply column 1 is divided into multiple independent L-shaped air ducts 105. When the air inlet at the end of the air supply column 1 is connected to the air outlet of the blower body, the airflow blown out by the blower body enters each L-shaped air duct 105, and then is output through the outlet of the L-shaped air duct 105 to the corresponding ventilation window of the rotating inner shell 3, and finally blown out through the outer shell air outlet 203.

[0128] This independent flow channel design allows for more uniform airflow. When the air outlet of the hair dryer body outputs airflow to the air inlet of the hair dryer accessory, it can be evenly separated by multiple independent L-shaped baffles 104, ensuring uniform airflow from the multiple L-shaped air channels 105 of the air supply column 1. If this independent flow channel structure is not used, and the column air outlet 102 is simply placed directly on the side of the air supply channel 101, then the airflow output by the hair dryer body will be concentrated at the top of the air supply column 1, resulting in severely uneven airflow from the column air outlet 102 and poor hair drying effect.

[0129] In summary, the hair dryer accessory and hair dryer kit provided in this embodiment have the following advantages:

[0130] (1) Rotating inner shell 3+ differentiated ventilation window design

[0131] By mechanically rotating and switching between different ventilation windows, it can achieve multiple modes such as high wind, medium wind, diffused wind, and gentle wind, and can meet diverse needs such as drying, styling, and hair care without disassembling accessories.

[0132] (2) L-shaped baffle 104 diversion technology

[0133] An L-shaped baffle 104 is installed inside the air supply column 1 to divide the air duct, so that the airflow is evenly distributed to each air outlet, avoiding heat damage to the hair caused by local strong winds.

[0134] (4) Multi-level limit mechanism

[0135] The fan ring channel 201 works in conjunction with the limit baffle 202 to prevent over-rotation and ensure orderly switching of the four wind speed modes.

[0136] (5) Optimization of ventilation window gradient

[0137] The four ventilation windows adopt a differentiated layout of strip grooves / honeycomb holes to achieve linear adjustment of airflow from concentrated to dispersed, covering all scenarios from high-speed styling to low-speed hair care.

[0138] (6) Redundant design for preventing wind blockage

[0139] The first gear setting is equipped with multiple sets of spare ventilation slots to maintain unobstructed airflow during gear switching, completely solving the airflow blockage problem that is easily caused by traditional rotary attachments.

[0140] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A hair dryer accessory, characterized in that, include: An air supply column (1) is provided with an air supply channel (101) and a column outlet (102) connected to the air supply channel (101). A fixed outer shell (2) is fitted onto the outside of the air supply column (1) and fixedly installed relative to the air supply column (1). The fixed outer shell (2) is provided with an outer shell air outlet (203) at a position opposite to the air outlet (102) of the column. Rotating inner shell (3), the rotating inner shell (3) is rotatably installed between the air supply column (1) and the fixed outer shell (2) around the axis of the air supply column (1), and is provided with at least two sets of differentiated ventilation windows; When the inner shell (3) is driven to rotate, the column air outlet (102) and the outer shell air outlet (203) are connected in sequence through different ventilation windows to realize the adjustment of the air outlet speed of the outer shell air outlet (203).

2. The hair dryer accessory according to claim 1, characterized in that, The outer shell air outlet (203) includes a central strip air outlet (2031) and a number of side strip air outlets (2032) arranged on both sides of the central strip air outlet (2031). The width of the central strip-shaped air outlet (2031) is greater than the width of the side strip-shaped air outlet (2032).

3. The hair dryer accessory according to claim 2, characterized in that, One set of the ventilation windows includes several spaced-apart strip-shaped ventilation slots (3031). When one of the first-level strip ventilation slots (3031) is directly opposite the central strip air outlet (2031), the remaining first-level strip ventilation slots (3031) are all misaligned with the outer shell air outlet (203) to restrict the remaining first-level strip ventilation slots (3031) from communicating with the outer shell air outlet (203).

4. The hair dryer accessory according to claim 2, characterized in that, One set of ventilation windows includes a centrally located two-stage ventilation slot (3041) and a number of side ventilation slots (3042) arranged on both sides of the centrally located two-stage ventilation slot (3041). in: The width of the central strip ventilation groove (3041) of the second gear is greater than the width of the side strip ventilation groove (3042) of the second gear; The number of the second-level side strip ventilation slots (3042) is less than the number of the side strip air outlets (2032), and when the second-level central strip ventilation slot (3041) is directly opposite the central strip air outlet (2031), each of the second-level side strip ventilation slots (3042) is directly opposite one of the side strip air outlets (2032).

5. The hair dryer accessory according to claim 2, characterized in that, One set of ventilation windows includes a three-level central strip ventilation channel (3051) and a number of three-level side strip ventilation channels (3052) arranged on both sides of the three-level central strip ventilation channel (3051). in: The width of the central strip ventilation slot (3051) is greater than the width of the side strip ventilation slot (3052) of the three gears; The number of the three-level side strip ventilation slots (3052) is equal to the number of the side strip air outlets (2032), and when the three-level central strip ventilation slot (3051) is directly opposite the central strip air outlet (2031), each of the three-level side strip ventilation slots (3052) is directly opposite one of the side strip air outlets (2032).

6. The hair dryer accessory according to claim 2, characterized in that, One of the ventilation windows includes a row of three central ventilation holes (3061) spaced apart, and several rows of three side ventilation holes (3062) arranged on both sides of each of the three central ventilation holes (3061). in: The diameter of the central ventilation hole (3061) of the three gears is larger than the diameter of the side ventilation hole (3062) of the three gears; The number of columns of the three-stage side ventilation holes (3062) is equal to the number of the side strip air outlets (2032), and when the three-stage central ventilation hole (3061) is directly opposite the central strip air outlet (2031), each column of the three-stage side ventilation holes (3062) is directly opposite one of the side strip air outlets (2032).

7. The hair dryer accessory according to claim 1, characterized in that, Also includes: The gear shift knob (4) is rotatably mounted on the top of the fixed outer shell (2), and the top of the rotating inner shell (3) is provided with an inner shell insert (301) that extends upward to be inserted into the gear shift knob (4).

8. The hair dryer accessory according to claim 7, characterized in that, The number of inner shell inserts (301) is at least two, and the distances from the two inner shell inserts (301) to the axis of the rotating inner shell (3) are different. The top of the fixed outer shell (2) is provided with a fan-shaped channel (201) for each inner shell insert (301) to pass through, and a limiting baffle (202) is provided at the end of the fan-shaped channel (201) to limit the corresponding inner shell insert (301) from continuing to rotate.

9. The hair dryer accessory according to claim 1, characterized in that, The column outlet (102) is located on the circumferential surface of the air supply column (1). The air supply column (1) is provided with several L-shaped partitions (104) to divide the air supply channel (101) into several L-shaped air ducts (105) that connect to the column outlet (102).

10. A hair dryer kit, characterized in that, Includes a hair dryer body and a hair dryer accessory as described in any one of claims 1-9, which is detachably mounted at the air outlet of the hair dryer body.

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