A hair care device

Abstract

The hair care device provided by the embodiment of the application has an auxiliary air inlet on the peripheral surface of the pivoting cylinder, which is an additional air inlet mode compared with conventional hair care devices. The air cylinder and the handle can rotate relative to the shaft body of the pivoting cylinder to change the hair care device between a straight rod state and a folded state. The effective air inlet area of the auxiliary air inlet changes with the straight rod state and the folded state. The total effective air inlet area of the hair care device is different in different states. The size of the air inlet is adjusted directly from the structural arrangement to match the air volume requirement of different functional modes, without relying completely on electric control, so that the household appliance is more in line with the ESG regulations.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a hair care device. BACKGROUND

[0002] Hair care devices are commonly used hair care tools in daily life, which are widely used for cleaning and caring for hair, wigs and animal hair.

[0003] At present, the conventional hair care device has a single air inlet mode due to the limitation of structure, which is either a rear air inlet mode or a lower air inlet mode. This form not only has a long air duct, which is prone to cause airflow weakening, but also cannot mechanically adjust the size of the air inlet according to different modes of the hair care device.

[0004] Therefore, it is necessary to improve the prior art to overcome the above-mentioned defects in the prior art. SUMMARY

[0005] Therefore, the present application solves the technical problem of the single air inlet of the existing hair care device and the inability to adjust the size of the air inlet according to different modes.

[0006] To solve the above technical problems, the present application provides a hair care device, comprising:

[0007] a wind tube, the wind tube is provided with an air outlet, an air supply channel and a heating assembly, the air outlet is located at one end of the wind tube, the air supply channel is in fluid communication with the air outlet, and the heating assembly is located on the path of the air supply channel;

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

[0009] a pivot tube, the other end of the wind tube and the other end of the handle are connected respectively, the main air inlet channel and the air supply channel are in fluid communication via the inner cavity of the pivot tube; the peripheral surface of the pivot tube is provided with an auxiliary air inlet;

[0010] The wind tube and / or the handle can rotate relative to the pivot tube to change the hair care device between a straight rod state and a folded state; when the hair care device is in a straight rod state, the auxiliary air inlet is blocked by the wind tube and / or the handle, and the auxiliary air inlet is in fluid communication with 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 of the embodiments, the total area of the auxiliary air inlet is less than or equal to 30% of the total area of the main air inlet.

[0012] In one of the embodiments, the straight rod state defines that the central axis of the handle and the central axis of the air duct are in the same line, and the folding state defines that the angle between the central axis of the handle and the central axis of the air duct ranges from greater than or equal to 0° to less than 180°.

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

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

[0015] In one of the embodiments, the pivot cylinder comprises end covers arranged at both ends of the side wall, one of the handle and the air duct is integrally formed with or fixedly connected to the two end covers, and the other of the handle and the air duct is integrally formed with or fixedly connected to the side wall.

[0016] In one of the embodiments, the circumferential surface of the side wall is further provided with a top air inlet, and the top air inlet is communicated with the air supply channel.

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

[0018] In one of the embodiments, during the transition of the hair care device between the straight rod state and the folding state, the central axis of the air duct and the central axis of the handle are in the same plane.

[0019] In one of the embodiments, the pivot cylinder, the handle and the air duct are all cylindrical, the surface shape of the other end of the handle matches the circumferential surface shape of the pivot cylinder, and the surface shape of the other end of the air duct matches the circumferential surface shape of the pivot cylinder.

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

[0021] The hair care device provided by the embodiment of the present application has an auxiliary air inlet on the peripheral surface of the pivotable cylinder, and has one more air inlet mode than conventional hair care devices. The air cylinder and the handle can rotate relative to the shaft body of the pivotable cylinder to change the hair care device between a straight rod state and a folded state. The effective air inlet area of the auxiliary air inlet changes with the straight rod state and the folded state. The hair care device can have different total effective air inlet areas in different states, and the size of the air inlet is adjusted to match the requirements of different functional modes for air volume directly from the structural arrangement, without relying completely on electric control, so that the household appliance is more in line with the ESG regulations. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0023] Figure 1 A three-dimensional schematic view of the hair care device provided by the embodiment of the present application in a straight rod state is shown in

[0024] Figure 2 A cross-sectional schematic view of the embodiment shown in Figure 1

[0025] Figure 3 A three-dimensional schematic view of the hair care device provided by the embodiment shown in Figure 1

[0026] Figure 4 A cross-sectional schematic view of the embodiment shown in Figure 3

[0027] Figure 5 A three-dimensional exploded schematic view of the embodiment shown in Figure 3

[0028] Figure 6 A right view of the embodiment shown in Figure 3

[0029] Figure 7 A three-dimensional schematic view of the hair care device provided by the embodiment shown in Figure 1

[0030] A cross-sectional schematic view of the embodiment shown in Figure 8 Figure 7

[0031] 100, hair care device 1, air cylinder 10, air outlet ​​​​​​​

[0032] 2, handle 21, main air inlet 3, pivot cylinder

[0033] 31, side wall 303, auxiliary air inlet 33, pivot shaft 301, top air inlet 321, first end cover 322, second end cover

[0034] 4, control panel 5, fan 6, heating assembly 333, pressing sleeve 324, lock cover 22, first half shell 23, second half shell 331, lock shaft DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all. Below, the present application will be described in detail with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

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

[0037] In the present application, unless otherwise stated, the examples to be introduced next are only a specific example, not as a limitation of the embodiments of the present application must be as follows: specific steps, values, conditions, data, order, etc. Those skilled in the art can use the concept of the present application to construct more embodiments not mentioned in the specification by reading the specification.

[0038] In this paper, the "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The phrase appears in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0039] Reference Figures 1 to 8 , the present application provides a kind of multi-air inlet hair care device 100. Specifically, the hair care device 100 includes air cylinder 1, handle 2 and pivot cylinder 3, pivot cylinder 3 is pivotally connected air cylinder 1 and handle 2. Air cylinder 1 is provided with air outlet 10, handle 2 is provided with main air inlet 21, the circumferential surface of pivot cylinder 3 is provided with auxiliary air inlet 303, auxiliary air inlet 303 is in fluid communication with main air inlet 21 and air outlet 10. Air cylinder 1 and handle 2 can be rotated relative to pivot cylinder 3, so that the hair care device 100 is in the straight rod state as shown in Figure 1 and Figure 3or Figure 7 The auxiliary air inlet 303 is blocked by the air duct 1 and / or the handle 2 when the hair care device 100 is in the straight rod state; the auxiliary air inlet 303 is exposed when the hair care device 100 is in the folded state, and external air can enter the air duct 1 through the auxiliary air inlet 303.

[0040] It can be understood that when the hair care device 100 is in the straight rod state, external air cannot enter the air duct 1 through the auxiliary air inlet 303 because the auxiliary air inlet 303 is blocked; when the hair care device 100 is in the folded state, external air can not only enter the air duct 1 through the main air inlet 21, but also enter the air duct 1 through the auxiliary air inlet 303 because the auxiliary air inlet is exposed (i.e., in communication with external air).

[0041] Further, the effective area of the exposed auxiliary air inlet 303 varies with the different angles between the air duct 1 and the handle 2. Users can adjust the angle between the air duct 1 and the handle 2 according to the required air volume to match their 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, and the hair care device 100 can achieve different effective air inlet areas in different states, directly adjusting the size of the air inlet from the structural setting to match the requirements of different functional modes for air volume, without relying entirely on electronic control, making household appliances more in line with ESG regulations.

[0044] The pivot cylinder 3 pivotally connects the air cylinder 1 and the handle 2, so that the air cylinder 1 and the handle 2 can relatively rotate, so that the included angle between the air cylinder 1 and the handle 2 can be adjusted, so that the air cylinder 1 and the handle 2 can be in different included angle positions to work, 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 of parallel arrangement, the hair care device 100 has a smaller size and is more convenient to store; when the air cylinder 1 and the handle 2 are in a straight rod state of one end opposite to the other end, the air cylinder 1 and the handle 2 can be fully stretched out, the operation distance is larger, and the air direction can be better adjusted; when in other angle folded state, the air cylinder 1 and the handle 2 can be in "L" type or "V" type state to work, to meet the use demand of special use environment. In this embodiment, the adjustable range of the included angle between the air cylinder 1 and the handle 2 is larger, so it can better meet the various use demands of different users, and the use is more convenient, and the user experience is better.

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

[0046] Continuing to refer to 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, and the air supply channel is a cavity channel formed by the air cylinder 1, and the air supply channel is in fluid communication with the air outlet 10. Further, the air cylinder 1 is provided with a heating assembly 6, and the heating assembly 6 is located on the path of the air supply channel, and is used for controllably selecting to 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 is in fluid communication with 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 air flow sucked into the air inlet channel from the main air inlet 21 flows through the control panel 4, 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 outlet channel are in fluid communication through the inner cavity of the pivot cylinder 3. When the air cylinder 1 and the handle 2 are set to rotate on the horizontal plane, the central axis Z of the pivot cylinder 3 is preferably arranged in the vertical direction. When the hair care device 100 is in the straight rod state, the central axis Z of the pivot cylinder 3 is perpendicular to the central axis X of the air cylinder 1 and / or the central 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 air cylinder 1 is cylindrical, and the other end of the air cylinder 1 and the one end of the air cylinder 1 are two opposite ends of the cylinder, respectively; the handle 2 is cylindrical, and the other end of the handle 2 and the one end of the handle 2 are two opposite ends of the cylinder, respectively. Preferably, the diameter of the air cylinder 1 is equal to the diameter of the handle 2, so that the first cylinder 1 and the second cylinder 2 are more symmetrical, more beautiful and more comfortable to hold when the hair care device 100 is in the folded state and the straight rod state. Preferably, the length of the air cylinder 1 and the handle 2 in the respective axial direction is substantially the same, and when the hair care device 100 is in the 0-degree folded state, the two ends of the air cylinder 1 and the handle 2 are flush, 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 peripheral surface shape of the pivot cylinder 3, and the surface shape of the other end of the air cylinder 1 matches the peripheral surface 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 air 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 peripheral surface of the pivot cylinder 3 is provided with an auxiliary air inlet 303, and the auxiliary air inlet 303 is in fluid communication with the inner cavity of the pivot cylinder 3.

[0051] It can be understood that the hair care device 100 also has a fan 5 for generating suction to draw air from the main air inlet 21 into the air inlet channel, through the inner cavity of the pivotable barrel 3, and into the air outlet channel and out of the air outlet 10. When the auxiliary air inlet 303 is exposed, the fan 5 also draws external air from the auxiliary air inlet 303 into the inner cavity of the pivotable barrel 3 and into the air outlet channel. Preferably, the fan 5 is located in the air barrel 1, and the heating assembly 6 is located between the fan 5 and the air outlet 10. The control panel 4 is electrically connected to the fan 5 and the heating assembly 6, respectively, to controllably start the fan 5 and / or the heating assembly 6.

[0052] The pivotable barrel 3 defines a pivot axis 33, and the air barrel 1 and the handle 2 can be pivoted relative to the pivot axis 33 to transform the hair care device 100 between the straight rod state and the folded state. Whether the auxiliary air inlet 303 is exposed is subject to the state of the hair care device 100. When the hair care device 100 is in the straight rod state, the other end of the handle 2 and the other end of the air barrel 1 are cut against each other to completely block the auxiliary air inlet 303; when the hair care device 100 is in the folded state, there is a gap between the other end of the handle 2 and the other end of the air barrel 1, so that the auxiliary air inlet 303 is exposed, and external air can enter the inner cavity of the pivotable barrel 3 through the auxiliary air inlet 303.

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

[0054] Preferably, during the relative rotation of the air barrel 1 and the handle 2, the central axis X of the air barrel 1 and the central axis Y of the handle 2 always lie on the same plane, and the support between the air barrel 1 and the handle 2 is always centered during the rotation, so that when the handle 2 is held to rotate the air barrel 1, the air barrel 1 will not tilt to one side, making the air barrel 1 easier to rotate, saving effort, and the user has a better hand feeling when using. Moreover, it does not occupy too much space in the axial direction of the pivotable barrel 3, and the volume of the hair care device 100 is smaller.

[0055] Further, as Figure 5 and Figure 6As shown, the pivot cylinder 3 comprises a side wall 31 and two end covers, i.e., a first end cover 322 and a second end cover 323. 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 penetrates the first end cover 322, the side wall 31 and the second end cover 323, so that the side wall 31 is clamped between the first end cover 322 and the second end cover 323 and rotates relative to the pivot shaft 33.

[0056] The side wall 31 is rotatably sleeved outside the pivot shaft 33 and connected with the air cylinder 1. The two end covers are rotatably sleeved outside the pivot shaft 33 and connected with the handle 2. The side wall 31 and the two end covers are rotatable relative to each other, and the central axis X of the air cylinder 1 and the central axis Y of the handle 2 are in the same plane. The pivot shaft 33 is connected with the air cylinder 1 through the side wall 31 and connected with the handle 2 through the two end covers. Under the transition effect of the side wall 31 and the two end covers, the air cylinder 1 and the handle 2 can rotate relative to each other, and the central axis X of the air cylinder 1 and the central axis Y of the handle 2 can be better in the same plane, so as to prevent the air cylinder 1 and the handle 2 from deviating during rotation.

[0057] When the hair care device 100 is in a straight rod state, the auxiliary air inlet 303 can be in a shielding state, and external air is directly drawn into the air cylinder 1 through the pivot cylinder 3 from the handle 2. When the hair care device 100 is in a folded state, the auxiliary air inlet 303 is exposed to introduce external air and fluidly connected with the main air inlet 21 and the air outlet 10, so as to be used for air intake. A part of air flow can be directly drawn into the pivot cylinder 3 through the auxiliary air inlet 303 and then into the air cylinder 1, so as to improve air intake efficiency.

[0058] Continuing to refer to Figure 5 The pivot shaft 33 comprises a lock shaft 331, a pressing sleeve 333 and a lock cover 334. The lock shaft 331 penetrates the first end cover 322 and the second end cover 323 from bottom to top and is locked with the lock cover 334 to connect the first end cover 322 and the second end cover 323. The pressing sleeve 333 is sleeved outside the lock shaft 331 and presses at least part of the side wall 31 on 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 convenient to assemble.

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

[0060] Specifically, referring to Figure 5As shown, the air duct 1 can include an inner air duct and an outer air duct, and an air outlet arranged at the front end of the air duct 1. The inner air duct is arranged integrally with the side wall 31, and the outer air duct is arranged on the outer circumferential side of the inner air duct. The air outlet includes an air outlet body and a plurality of air outlet blades arranged on the circumferential side of the air outlet body. The plurality of air outlet blades are arranged in the same direction along the circumference of the air outlet body. The air outlet body is provided with an opening. Adjacent two air outlet blades form an air outlet channel. The air outlet channel can increase the air outlet volume and make the air outlet more uniform.

[0061] With reference to the foregoing Figures 3 to 6 , the handle 2 includes a first half shell 22 and a second half shell 23 connected together. The first half shell 22 and the second half shell 23 are both substantially semicircular in cross section, so as to facilitate the installation of the circuit board 4 or other components in the handle 2. A first end cover 322 is connected to the first half shell 22, and a 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 arranged in a sleeved manner on the two ends of the side wall 31 along the axial direction of the side wall 31. Specifically, when the first end cover 322 is arranged on the upper end of the side wall 31, the second end cover 323 is arranged on the lower end of the side wall 31. The first half shell 22 is connected to the circumferential side of the first end cover 322 and arranged close to the bottom of the first half shell 22. The second half shell 23 is connected to the circumferential side of the second end cover 323 and arranged close to the top of the second half shell 23. 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 connected opposite to each other, so that the assembly operation is simple and convenient.

[0062] Further, the handle 2 can include an inner handle and an outer handle. The first half shell 22 and the second half shell 23 jointly form the inner handle, and the outer handle is arranged on the outer side of the inner handle. In this way, the strength of the handle 2 is better, and the sealing performance is better. 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. Therefore, when assembling, the number of assembly components is smaller, and thus the assembly is simpler.

[0063] Preferably, the top air inlet 301 is arranged on the circumferential surface of the side wall 31 and communicates with the air supply channel. The top air inlet 301 is exposed regardless of the state of the hair care device 100. Based on the main air inlet 21, the top air inlet 301 can further increase the air inlet channel, thereby improving the air inlet efficiency of the hair care device 100.

[0064] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, those skilled in the art can make other different forms of changes or modifications without creative labor, which should all belong to the protection scope of the present application.

Claims

1. A hair care device, characterized in that, The hair care device includes: A duct is provided with an air outlet, an air supply channel and a heating component. The air outlet is located at one end of the duct, the air supply channel is in fluid communication with the air outlet, and the heating component is located on the path of the air supply channel. The handle is provided with a main air inlet, an air inlet channel and a control panel. The main air inlet is located at one end of the handle, the air inlet channel is in fluid communication with 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 air duct and the other end of the handle, respectively. The air inlet channel and the air outlet channel are in fluid communication through the inner cavity of the pivot cylinder. An auxiliary air inlet is provided on the circumference of the pivot cylinder. The air duct and / or the handle are rotatable relative to the pivot cylinder to allow the hair care device to switch between a straight state and a folded state; when the hair care device is in the straight state, the auxiliary air inlet is blocked by the air duct and / or the handle, and the auxiliary air inlet is in fluid communication with 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, which 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 intake area of ​​the auxiliary air intake is less than or equal to 30% of the total air intake area of ​​the main air intake.

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 air duct are 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 air duct is greater than or equal to 0° and less than 180°.

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

5. The hair care device according to claim 1, characterized in that, The pivot cylinder includes a pivot shaft and a side wall arranged circumferentially around the pivot shaft, and the auxiliary air inlet is disposed 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 caps disposed at both ends of the side wall. One of the handle and the air duct is integrally formed or fixedly connected to the two end caps, and the other of the handle and the air duct is integrally formed or fixedly connected to the side wall.

7. The hair care device according to claim 5, characterized in that, The side wall is also provided with a top air inlet on its circumference, 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 air duct and / or the central axis of the handle.

9. The hair care device according to claim 1, characterized in that, During the transition between the straight rod state and the folded state of the hair care device, the central axis of the blower 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 air duct 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 air duct matches the circumferential shape of the pivot cylinder.

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