Hair care device

Abstract

The embodiment of the invention provides a hair care device. According to the hair care device, the auxiliary air inlets are formed in the circumferential surface of the pivoting cylinder, so that one more air inlet mode is provided compared with a conventional hair care device; the air cylinder and the handle can rotate relative to the shaft body part of the pivoting cylinder, so that the hair care device is switched between a straight rod state and a folded state; the effective air inlet area of the auxiliary air inlet changes along with the straight rod state and the folding state. According to the hair care device, the total effective air inlet area is different in different states, the size of the air inlet can be directly adjusted from the structural arrangement to meet the requirements of different function modes for air volume, electric control does not need to be completely depended on, and household appliances better conform to ESG regulations.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, in particular to a hair care device. Background Art

[0002] Hair care devices are common hairdressing tools in people's daily lives. They are widely used and are often used to clean and care for hair, wigs, and animal hair.

[0003] At present, due to structural limitations, conventional hair care devices have a relatively simple air intake method, either rear air intake or bottom air intake. This method not only makes the air duct too long, which easily leads to the phenomenon of air flow weakening, but also cannot mechanically adjust the size of the air inlet in combination with different modes of the hair care device.

[0004] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Summary of the invention

[0005] Therefore, the present invention aims to solve the technical problem that the current hair care device has a single air inlet and cannot adjust the size of the air inlet in combination with different modes.

[0006] In order to solve the above technical problems, the present invention provides a hair care device, comprising:

[0007] A wind tube, wherein the wind tube is provided with an air outlet, an air supply channel and a heating component, wherein the air outlet is located at one end of the wind tube, the air supply channel fluid is connected to the air outlet, and the heating component is located on the path of the air outlet channel;

[0008] A handle, wherein the handle is provided with a main air inlet, an air inlet channel and a control panel, wherein the main air inlet is located at one end of the handle, the air inlet channel fluid is connected to the main air inlet, and the control panel is located on the path of the main air inlet channel;

[0009] A pivot cylinder is connected to the other end of the wind cylinder and the other end of the handle respectively, and the main air inlet channel and the air supply channel are in fluid communication via the inner cavity of the pivot cylinder; an auxiliary air inlet is provided on the circumference of the pivot cylinder;

[0010] The hair cylinder and / or the handle can rotate relative to the pivot cylinder so that the hair care device can be transformed between a straight rod state and a folded state; when the hair care device is in the straight rod state, the auxiliary air inlet is blocked by the hair cylinder and / or the handle, and the auxiliary air inlet fluid is connected to the main air inlet and the air outlet; when the hair care device is in at least one folded state, the auxiliary air inlet is exposed to introduce external air from the auxiliary air inlet into the air supply channel.

[0011] In one embodiment, the total air inlet area of ​​the auxiliary air inlet is less than or equal to thirty percent of the total air inlet area of ​​the main air inlet.

[0012] In one embodiment, the straight rod state defines that the central axis of the handle and the central axis of the wind tube are located on the same straight line, and the folded state defines that the angle between the central axis of the handle and the central axis of the wind tube is greater than or equal to 0° and less than 180°.

[0013] In one embodiment, when the angle between the central axis of the handle and the central axis of the wind tube is 0°, the central axis of the handle and the central axis of the wind tube are parallel to each other.

[0014] In one of the embodiments, the pivot cylinder includes a pivot axis and a side wall circumferentially arranged around the pivot axis, and the auxiliary air inlet is arranged on a circumferential surface of the side wall.

[0015] In one embodiment, the pivot cylinder includes end caps arranged at both ends of the side wall, one of the handle and the wind tube is integrally formed with or fixedly connected to the two end caps, and the other of the handle and the wind tube is integrally formed with or fixedly connected to the side wall.

[0016] In one of the embodiments, a top air inlet is further provided on the peripheral surface of the side wall, and the top air inlet is connected to the air supply channel.

[0017] In one embodiment, the central axis of the pivot cylinder is perpendicular to and does not intersect with the central axis of the wind cylinder and / or the central axis of the handle.

[0018] In one of the embodiments, when the hair care device is transformed between the straight state and the folded state, the central axis of the hair dryer and the central axis of the handle are located on the same plane.

[0019] In one embodiment, the pivot cylinder, the handle, and the wind tube are all cylindrical, the surface shape of the other end of the handle matches the circumferential shape of the pivot cylinder, and the surface shape of the other end of the wind tube matches the circumferential shape of the pivot cylinder.

[0020] The technical solution provided by the present invention has the following advantages:

[0021] The hair care device provided by the embodiment of the present invention has an auxiliary air inlet on the circumferential surface of the pivot cylinder, which provides an additional air intake method compared with the conventional hair care device; and the hair cylinder and the handle can be rotated relative to the axial body of the pivot cylinder to enable the hair care device to switch between the straight rod state and the folded state; the effective air inlet area of ​​the auxiliary air inlet changes with the straight rod state and the folded state, and the hair care device can achieve different total effective air inlet areas in different states. The size of the air inlet can be adjusted directly from the structural setting to match the air volume requirements of different functional modes without relying entirely on electronic control, so that household appliances are more compliant with ESG regulations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A three-dimensional schematic diagram of a hair care device provided by an embodiment of the present invention in a straight rod state;

[0024] Figure 2 For along Figure 1 A schematic cross-sectional view of the illustrated embodiment;

[0025] Figure 3 for Figure 1 A three-dimensional schematic diagram of the hair care device of the illustrated embodiment in a state of being folded at approximately 90 degrees;

[0026] Figure 4 for Figure 3 A schematic cross-sectional view of the illustrated embodiment;

[0027] Figure 5 for Figure 3 A three-dimensional exploded schematic diagram of the illustrated embodiment;

[0028] Figure 6 for Figure 3 a right side view of the illustrated embodiment;

[0029] Figure 7 yes Figure 1 A three-dimensional schematic diagram of the hair care device of the illustrated embodiment in a folded state at 0 degrees;

[0030] Figure 8 for Figure 7 A schematic cross-sectional view of the illustrated embodiment.

[0031] 100, hair care device 1, hair dryer 10, air outlet 2, handle 21, main air inlet 3, pivot cylinder 31, side wall 303, auxiliary air inlet 33, pivot shaft 301, top air inlet 321, first end cover 322, second end cover 4, control board 5, fan 6, heating component 333, pressing sleeve 324, lock cover 22, first half shell 23, second half shell 331, lock shaft DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0037] In the present invention, unless otherwise stated, the example to be introduced below is only a specific example, and is not intended to limit the embodiments of the present invention to the following specific steps, values, conditions, data, sequences, etc. Those skilled in the art can apply the concept of the present invention to construct more embodiments not mentioned in this specification by reading this specification.

[0038] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] refer to Figures 1 to 8 The embodiment of the present invention provides a hair care device 100 with multiple air inlets. Specifically, the hair care device 100 includes a hair cylinder 1, a handle 2 and a pivot cylinder 3, and the pivot cylinder 3 is pivotally connected to the hair cylinder 1 and the handle 2. The hair cylinder 1 is provided with an air outlet 10, the handle 2 is provided with a main air inlet 21, and the peripheral surface of the pivot cylinder 3 is provided with an auxiliary air inlet 303, and the auxiliary air inlet 303 is fluidically connected to the main air inlet 21 and the air outlet 10. The hair cylinder 1 and the handle 2 can rotate relative to the pivot cylinder 3, so that the hair care device 100 is in a state as follows: Figure 1 The straight bar state shown, and Figure 3 or Figure 7When the hair care device 100 is in the straight state, the auxiliary air inlet 303 is blocked by the hair cylinder 1 and / or the handle 2; when the hair care device 100 is in the folded state, the auxiliary air inlet 303 is exposed, and external air can enter the hair cylinder 1 through the auxiliary air inlet 303.

[0040] It is understandable that when the hair care device 100 is in the straight rod state, since the auxiliary air inlet 303 is blocked, when the hair care device 100 starts working, external air cannot enter the hair cylinder 1 through the auxiliary air inlet 303; and when the hair care device 100 is in the folded state, since the auxiliary air inlet is exposed (i.e., connected to the outside air), the outside air can enter the hair cylinder 1 not only through the main air inlet 21, but also through the auxiliary air inlet 303.

[0041] Furthermore, the effective area exposed by the auxiliary air inlet 303 varies with the angle between the air duct 1 and the handle 2. The user can adjust the angle between the air duct 1 and the handle 2 according to the required air volume to match his or her own air volume requirements.

[0042] The ratio of the total air inlet area of ​​the auxiliary air inlet 303 to the total air inlet area of ​​the main air inlet 21 affects the air supply efficiency of the air supply channel in the air duct 1. Preferably, the total air inlet area of ​​the auxiliary air inlet 303 is less than or equal to 30% of the total air inlet area of ​​the main air inlet 21.

[0043] In this embodiment, the effective air inlet area of ​​the auxiliary air inlet 303 changes with the straight rod state and the folded state. The hair care device 100 can achieve different effective air inlet areas in different states. The size of the air inlet can be adjusted directly from the structural setting to match the air volume requirements of different functional modes without relying entirely on electronic control, making household appliances more compliant with ESG regulations.

[0044] The pivot cylinder 3 is pivotally connected to the air cylinder 1 and the handle 2, so that the air cylinder 1 and the handle 2 can rotate relative to each other, so that the angle between the air cylinder 1 and the handle 2 can be adjusted, so that the air cylinder 1 and the handle 2 can work at different angles, so that the working state of the hair care device 100 is more diverse. When the air cylinder 1 and the handle 2 are in a folded state arranged in parallel, the volume of the hair care device 100 is smaller and more convenient to store; when the air cylinder 1 and the handle 2 are in a straight rod state with one end facing away from the other end, the air cylinder 1 and the handle 2 can be fully extended, the operable distance is larger, and the air outlet direction can be better adjusted; when in a folded state at other angles, the air cylinder 1 and the handle 2 can work in an "L" shape or a "V" shape to meet the use requirements of special use environments. In this embodiment, the adjustable range of the angle between the air cylinder 1 and the handle 2 is larger, so it can better meet the various use requirements of different users, is more convenient to use, and has a better user experience.

[0045] like Figure 1 and Figure 2 As shown, in this embodiment, the straight state defines that the central axis Y of the handle 2 and the central axis X of the hair dryer 1 are located on the same straight line, and the hair care device 100 is in the shape of a straight rod; the folded state defines that the angle between the central axis Y of the handle 2 and the central axis X of the hair dryer 1 is greater than or equal to 0° and less than 180°. Figures 3 to 6 As shown, the angle between the central axis Y of the handle 2 and the central axis Y of the hair dryer 1 is approximately 90°, and the hair care device 100 is similar to an "L" shape or a "V" shape. Figure 7 and Figure 8 As shown in FIG. 1 , the included angle between the central axis Y of the handle 2 and the central axis X of the hair dryer 1 is 0°. At this time, the central axis Y of the handle 2 and the central axis X of the hair dryer 1 are parallel to each other, and the hair care device 100 is in a U-shape. Of course, based on the different included angles between the hair dryer 1 and the handle 2, there are still other options in the folded state. Figure 3 or Figure 7 Other folding states not shown.

[0046] Continue to refer Figures 1 to 8 The air cylinder 1 is provided with an air outlet 10 and an air supply channel. The air outlet 10 is located at one end of the air cylinder 1. The air supply channel is a cavity channel formed by the air cylinder 1. The air supply channel fluid is connected to the air outlet 10. Further, the air cylinder 1 is provided with a heating component 6. The heating component 6 is located on the path of the air supply channel and is used to controllably select and heat the airflow flowing through the air supply channel, so that the hair care device 100 has the function of air outlet with different temperatures.

[0047] The handle 2 is provided with a main air inlet 21 and an air inlet channel. The main air inlet 21 is located at one end of the handle 2, and the air inlet channel is an internal cavity channel formed by the handle 2, and the air inlet channel fluid is connected to the main air inlet 21. Further, the handle 2 is provided with a control panel 4, and the control panel 4 is located on the path of the air inlet channel, so as to ensure that the airflow flows through the control panel 4 after being sucked into the air inlet channel from the main air inlet 21, which is conducive to efficiently cooling the control panel 4.

[0048] The pivot cylinder 3 is connected to the other end of the air cylinder 1 and the other end of the handle 2, respectively, and the air inlet channel and the air supply channel are in fluid communication via the inner cavity of the pivot cylinder 3. Assuming that the air cylinder 1 and the handle 2 rotate on a horizontal plane, preferably, the center axis Z of the pivot cylinder 3 is arranged in a vertical direction. When the hair care device 100 is in a straight rod state, the center axis Z of the pivot cylinder 3 is perpendicular to the center axis X of the air cylinder 1 and / or the center axis Y of the handle 2, so that the air cylinder 1 and the handle 2 rotate more smoothly and are not easy to twist or shake.

[0049] In this embodiment, the hair dryer 1 is cylindrical, and the other end of the hair dryer 1 and one end of the hair dryer 1 are two ends of the cylinder that are separated from each other; the handle 2 is cylindrical, and the other end of the handle 2 and one end of the handle 2 are two ends of the cylinder that are separated from each other. Preferably, the diameter of the hair dryer 1 is equal to the diameter of the handle 2, so that when the first barrel 1 and the second barrel 2 are in the folded state and the straight rod state, the appearance structure of the hair care device 100 is more symmetrical, more beautiful, and more comfortable to hold. Preferably, the lengths of the hair dryer 1 and the handle 2 along their respective axes are roughly the same, and when the hair care device 100 is in the 0-degree folded state, the ends of the hair dryer 1 and the handle 2 are aligned, so that the storage is more regular and more compact.

[0050] In this embodiment, the pivot cylinder 3 is also cylindrical, the surface shape of the other end of the handle 2 matches the circumferential shape of the pivot cylinder 3, and the surface shape of the other end of the wind cylinder 1 matches the circumferential shape of the pivot cylinder 3. The central axis Z of the pivot cylinder 3 is perpendicular to and does not intersect with the central axis X of the wind cylinder 1, and the central axis Z of the pivot cylinder 3 is also perpendicular to and does not intersect with the central axis Y of the handle 2. The circumferential surface of the pivot cylinder 3 is provided with an auxiliary air inlet 303, and the auxiliary air inlet 303 is fluidically connected to the inner cavity of the pivot cylinder 3.

[0051] It is understandable that the hair care device 100 also has a fan 5, which is used to generate suction, and sucks air from the main air inlet 21 into the air inlet channel, flows through the inner cavity of the pivot cylinder 3, enters the air supply channel, and then flows out from the air outlet 10. When the auxiliary air inlet 303 is exposed, the fan 5 also sucks external air from the auxiliary air inlet 303 into the inner cavity of the pivot cylinder 3, and then enters the air supply channel. Preferably, the fan 5 is located in the air cylinder 1, and the heating component 6 is located between the fan 5 and the air outlet 10. The control board 4 is electrically connected to the fan 5 and the heating component 6, respectively, and controllably starts the fan 5 and / or the heating component 6.

[0052] The pivot cylinder 3 defines a pivot shaft 33, and the hair cylinder 1 and the handle 2 can pivot relative to the pivot shaft 33, so that the hair care device 100 can be transformed between the straight state and the folded state. Whether the auxiliary air inlet 303 is exposed depends on the state of the hair care device 100. When the hair care device 100 is in the straight state, the other end of the handle 2 and the other end of the hair cylinder 1 are mutually engaged to completely block the auxiliary air inlet 303; when the hair care device 100 is in the folded state, a gap is left between the other end of the handle 2 and the other end of the hair cylinder 1, so that the auxiliary air inlet 303 is exposed, and external air can enter the inner cavity of the pivot cylinder 3 through the auxiliary air inlet 303.

[0053] It can be understood that there are many ways to connect the wind cylinder 1 and the handle 2 in a relative rotation. In one embodiment, the rotation plane of the wind cylinder 1 (i.e., the plane through which the central axis X of the wind cylinder 1 rotates) and the rotation plane of the handle 2 (i.e., the plane through which the central axis Y of the handle 2 rotates) can be set to be non-coplanar. For example, the rotation plane of the wind cylinder 1 is parallel to and / or intersecting with the rotation plane of the handle 2, so that the wind cylinder 1 and the handle 2 are staggered in the rotation direction, thereby better realizing large-angle rotation. And / or, one of the wind cylinder 1 and the handle 2 can rotate by itself, and the angle between the wind cylinder 1 and the handle 2 can be changed by the relative rotation of the wind cylinder 1 and the handle 2.

[0054] Preferably, during the relative rotation of the hair dryer 1 and the handle 2, the central axis X of the hair dryer 1 and the central axis Y of the handle 2 are always located on the same plane, and the supports between the hair dryer 1 and the handle 2 are always in a centered state during the rotation process. Therefore, when the hair dryer 1 is rotated by holding the handle 2, the hair dryer 1 will not tilt to one side, making the hair dryer 1 easier to rotate and more labor-saving, and the user feels better when using it. In addition, it does not occupy too much space in the axial direction of the pivot cylinder 3, and the hair care device 100 is more compact.

[0055] Furthermore, if Figure 5 and Figure 6As shown, the pivot cylinder 3 includes a side wall 31 and two end covers, and the two end covers are respectively a first end cover 322 and a second end cover 323. Among them, the auxiliary air inlet 303 is arranged on the circumferential surface of the side wall 31. The side wall 31 is arranged between the first end cover 322 and the second end cover 323. The pivot shaft 33 passes through the first end cover 322, the side wall 31 and the second end cover 323, so that the side wall 31 is rotatably clamped between the first end cover 321 and the second end cover 32. The first end cover 322 and the second end cover 323 can be connected by the pivot shaft 33, and the first end cover 322 and the second end cover 323 are respectively located at the two ends of the axial direction of the side wall 31, so that the side wall 31 can rotate relative to the pivot shaft 33.

[0056] The side wall 31 is rotatably mounted on the outside of the pivot shaft 33 and connected to the wind tube 1; the two end covers are rotatably mounted on the outside of the pivot shaft 33 and connected to the handle 2; wherein the side wall 31 and the two end covers can rotate relative to each other, and the central axis X of the wind tube 1 and the central axis Y of the handle 2 are in the same plane. The pivot shaft 33 and the wind tube 1 are connected by the side wall 31, and the pivot shaft 33 and the handle 2 are connected by the two end covers. Under the transition effect of the side wall 31 and the two end covers, the wind tube 1 and the handle 2 can be relatively rotated, and the central axis X of the wind tube 1 and the central axis Y of the handle 2 can be better in the same plane, so as to ensure that the wind tube 1 and the handle 2 will not deviate during the rotation process.

[0057] When the hair care device 100 is in a straight rod state, the auxiliary air inlet 303 can be in a shielded state, and external air is directly sucked into the wind tube 1 from the handle 2 through the pivot cylinder 3; when it is in a folded state, the auxiliary air inlet 303 is exposed to introduce external air and the auxiliary air inlet 303 fluid is connected to the main air inlet 21 and the air outlet 10, and can be used for air intake, so that a part of the air flow can be directly sucked into the pivot cylinder 3 through the auxiliary air inlet 303 to enter the wind tube 1, thereby improving the air intake efficiency.

[0058] Continue to refer Figure 5 The pivot shaft 33 includes a locking shaft 331, a pressing sleeve 333 and a locking cover 334. The locking shaft 331 is inserted into the first end cover 322 and the second end cover 323 from bottom to top, and is locked with the locking cover 334 to connect the first end cover 322 and the second end cover 323. The pressing sleeve 333 is sleeved on the outer side of the locking shaft 331 and presses at least part of the side wall 31 onto the second end cover 323, so that the side wall 31 can rotate relative to the second end cover 323 and the pressing sleeve 333. The structure is simple and easy to assemble.

[0059] Among them, one of the handle 2 and the hair cylinder 1 is integrally formed with or fixedly connected to the two end covers (i.e., the first end cover 322 and the second side end 323), and the other of the handle 2 and the hair cylinder 1 is integrally formed with or fixedly connected to the side wall 31.

[0060] Specifically, refer to Figure 5As shown, the air duct 1 may include an inner air duct and an outer air duct, and an air outlet piece arranged at the front end of the air duct 1, the inner air duct is integrally arranged with the side wall 31, the outer air duct is sleeved on the outer peripheral side of the inner air duct, the air outlet piece includes an air outlet body, and a plurality of air outlet blades arranged on the peripheral side of the air outlet body, the plurality of air outlet blades are bent along the same side of the circumference of the air outlet body, an opening is arranged on the air outlet body, and an air outlet channel is formed between two adjacent air outlet blades, so that the air outlet volume is larger and the air outlet is more uniform.

[0061] Continue to refer Figures 3 to 6 The handle 2 includes a first half shell 22 and a second half shell 23 connected to each other. The cross-sections of the first half shell 22 and the second half shell 23 are both roughly semicircular, so as to facilitate the installation of the circuit board 4 or other components in the handle 2. The first end cover 322 is connected to the first half shell 22, and the second end cover 323 is connected to the second half shell 23. The first end cover 322 and the second end cover 323 are respectively rotatably sleeved on the two ends of the side wall 31 along its axial direction. Specifically, if the first end cover 322 is sleeved on the upper end of the side wall 31, the second end cover 323 is sleeved on the lower end of the side wall 31, the first half shell 22 is connected to the peripheral side of the first end cover 322 and is arranged close to the bottom of the first half shell 22, and the second half shell 23 is connected to the peripheral side of the second end cover 323 and is arranged close to the top of the second half shell 23, so that when the first end cover 322 and the second end cover 323 are installed in place, the first half shell 22 and the second half shell 23 are just oppositely connected, and the assembly operation is simple and convenient.

[0062] Furthermore, the handle 2 may include a handle inner cylinder and a handle outer cylinder, the first half shell 22 and the second half shell 23 together form the handle inner cylinder, and the handle outer cylinder is sleeved on the outside of the handle inner cylinder, so that the handle 2 has better strength and better sealing performance. The second end cover 323 is integrally formed with the second half shell 23, and the first end cover 322 is integrally formed with the first half shell 22, so that when assembling, fewer assembly parts are needed, so the assembly is simpler.

[0063] Preferably, the circumferential surface of the side wall 31 is further provided with a top air inlet 301, and the top air inlet 301 is connected to the air supply channel. The exposed state of the top air inlet 301 is not restricted by the state of the hair care device 100, and the air inlet channel can be further increased on the basis of the main air inlet 21, thereby improving the air intake efficiency of the hair care device 100.

[0064] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the present invention.

Claims

1. A hair care device, characterized in that: The hair care device comprises: A wind tube, wherein the wind tube is provided with an air outlet, an air supply channel and a heating component, wherein the air outlet is located at one end of the wind tube, the air supply channel fluid is connected to the air outlet, and the heating component is located on the path of the air outlet channel; A handle, wherein the handle is provided with a main air inlet, an air inlet channel and a control panel, wherein the main air inlet is located at one end of the handle, the air inlet channel is fluidly connected to the main air inlet, and the control panel is located on the path of the air inlet channel; A pivot cylinder is connected to the other end of the wind cylinder and the other end of the handle respectively, and the air inlet channel and the air supply channel are in fluid communication via the inner cavity of the pivot cylinder; an auxiliary air inlet is provided on the circumference of the pivot cylinder; The hair cylinder and / or the handle can rotate relative to the pivot cylinder to enable the hair care device to be transformed between a straight rod state and a folded state; when the hair care device is in the straight rod state, the auxiliary air inlet is blocked by the hair cylinder and / or the handle, and the auxiliary air inlet fluid is connected to the main air inlet and the air outlet; when the hair care device is in at least one folded state, the auxiliary air inlet is exposed to introduce external air, and the external air enters the air supply channel from the auxiliary air inlet.

2. The hair care device according to claim 1, characterized in that The total air inlet area of ​​the auxiliary air inlet is less than or equal to thirty percent of the total air inlet area of ​​the main air inlet.

3. The hair care device according to claim 1, characterized in that The straight rod state defines that the central axis of the handle and the central axis of the wind tube are located on the same straight line, and the folded state defines that the angle between the central axis of the handle and the central axis of the wind tube ranges from greater than or equal to 0° to less than 180°.

4. The hair care device according to claim 3, characterized in that When the included angle between the central axis of the handle and the central axis of the wind tube is 0°, the central axis of the handle and the central axis of the wind tube are parallel to each other.

5. The hair care device according to claim 1, characterized in that The pivot cylinder comprises a pivot shaft and a side wall circumferentially arranged around the pivot shaft, and the auxiliary air inlet is arranged on the circumferential surface of the side wall.

6. The hair care device according to claim 5, characterized in that The pivot cylinder includes end covers arranged at both ends of the side wall, one of the handle and the air cylinder is integrally formed with or fixedly connected to the two end covers, and the other of the handle and the air cylinder is integrally formed with or fixedly connected to the side wall.

7. The hair care device according to claim 5, characterized in that The peripheral surface of the side wall is also provided with a top air inlet, and the top air inlet is connected to the air supply channel.

8. The hair care device according to claim 1, characterized in that The central axis of the pivot cylinder is perpendicular to and does not intersect with the central axis of the wind cylinder and / or the central axis of the handle.

9. The hair care device according to claim 1, characterized in that During the transition of the hair care device between the straight rod state and the folded state, the central axis of the hair dryer and the central axis of the handle are located on the same plane.

10. The hair care device according to claim 1, characterized in that The pivot cylinder, the handle, and the wind tube are all cylindrical, the surface shape of the other end of the handle matches the circumferential shape of the pivot cylinder, and the surface shape of the other end of the wind tube matches the circumferential shape of the pivot cylinder.

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