Flow guide tuyere and hair care appliance

Abstract

The utility model provides a flow guide air nozzle applied to a hair care appliance and the hair care appliance comprising the flow guide air nozzle. The flow guide tuyere comprises a main body part, a flow guide part and a limiting assembly; the main body part comprises a first airflow cavity and an airflow inlet and an airflow outlet which are communicated with the first airflow cavity, and the main body part is provided with a bent outer surface; the flow guide part is rotatably arranged on the outer surface of the main body part and covers part of the outer surface of the main body part, so that a second airflow cavity is formed between the flow guide part and the main body part, and the second airflow cavity is separated from the first airflow cavity when the flow guide part rotates to a first state; when the flow guide part rotates to a second state, the second airflow cavity communicates with the first airflow cavity through the airflow outlet; the limiting assembly is arranged between the flow guide part and the main body part and used for limiting the flow guide part and the main body part when the flow guide part rotates to the first state or the second state. According to the flow guide tuyere and the hair care appliance, different air outlet modes can be switched through one tuyere of the hair care appliance.

Description

Technical Field

[0001] The present disclosure relates to the technical field of beauty and hair care, and particularly to a diversion air nozzle and a hair care appliance. Background Art

[0002] With the development of the times, people's requirements for all aspects of life are constantly increasing, and sometimes they even require refinement down to every strand of hair. After washing hair, people usually use hair care appliances to care for their hair, such as using a hair dryer to dry and style their hair. However, for existing hair care appliances, a single air nozzle usually only has one air outlet mode. When using a hair care appliance and wanting to switch the air outlet mode, it is necessary to replace the air nozzle, resulting in the need to equip a multi-functional hair care appliance with multiple different air nozzles, which is rather troublesome to use.

[0003] Therefore, it is necessary to provide a diversion air nozzle and a hair care appliance to solve the above technical problems. Utility Model Content

[0004] The present disclosure provides a diversion air nozzle and a hair care appliance, which can enable a single air nozzle of the hair care appliance to switch different air outlet modes.

[0005] In a first aspect, an embodiment of the present disclosure provides a diversion air nozzle applied to a hair care appliance, including:

[0006] A main body portion, the main body portion includes a first air flow cavity, an air inlet and an air outlet that are communicated with the first air flow cavity, and the main body portion has a curved outer surface;

[0007] A diversion portion, the diversion portion is rotatably disposed on the outer surface of the main body portion and covers a part of the outer surface of the main body portion to form a second air flow cavity between the diversion portion and the main body portion. The diversion portion can be rotated to a first state or a second state. When the diversion portion is rotated to the first state, the second air flow cavity is separated from the first air flow cavity. When the diversion portion is rotated to the second state, the second air flow cavity is communicated with the first air flow cavity through the air outlet; and

[0008] A limiting assembly, the limiting assembly is disposed between the diversion portion and the main body portion and is used for mutually limiting the diversion portion and the main body portion when the diversion portion is rotated to the first state or the second state.

[0009] Optionally, the limiting assembly includes a first limiting portion and a second limiting portion that are adapted to each other. The first limiting portion is disposed on one of the main body portion and the diversion portion, and the second limiting portion is disposed on the other of the main body portion and the diversion portion; when the diversion portion is rotated to the first state or the second state, the first limiting portion and the second limiting portion are in limiting cooperation.

[0010] Optionally, the first limiting portion includes a bullet head disposed on the main body portion, the second limiting portion is a groove formed in the guiding portion with the notch facing the main body portion, and the bullet head is adapted to the groove; when the guiding portion rotates to the first state or the second state, part of the bullet head is caught in the groove.

[0011] Optionally, the inner wall of the groove is smoothly arranged, and the width of the groove gradually decreases from the notch to the bottom of the groove.

[0012] Optionally, a mounting groove with the notch facing the guiding portion is formed at the top of the main body portion, and the bullet head is telescopically mounted in the mounting groove and partially protrudes from the notch of the mounting groove.

[0013] Optionally, the first limiting portion further includes an elastic member, the elastic member is mounted in the mounting groove, one end of the elastic member abuts against the bottom of the mounting groove, and the other end abuts against the bottom of the bullet head.

[0014] Optionally, the first state corresponds to a preset position, the second state corresponds to a plurality of preset positions, the sum of the number of preset positions corresponding to the first state and the second state is a target number, and the number of at least one of the first limiting portion and the second limiting portion is the target number; when the guiding portion rotates to any one of the preset positions, at least one of the first limiting portions is in limiting cooperation with at least one of the second limiting portions.

[0015] Optionally, the number of the first limiting portions is one, the number of the second limiting portions is the target number, and the target number of the second limiting portions are circumferentially spaced apart from each other along the main body portion on the guiding portion; when the guiding portion rotates to different preset positions, the first limiting portion is in limiting cooperation with different second limiting portions.

[0016] Optionally, the guiding portion includes a first mounting member sleeved on the top end of the main body portion and covering the top surface of the main body portion, and the first limiting portion or the second limiting portion is disposed on the surface of the first mounting member facing the main body portion.

[0017] In a second aspect, an embodiment of the present disclosure provides a hair care appliance, including a handle and the guiding nozzle as described in any one of the first aspect, and the handle is detachably connected to the main body portion.

[0018] In the deflector nozzle and the hair care appliance provided by the present disclosure, the main body of the deflector nozzle has a curved outer surface. The main body includes a first air flow cavity communicating with an air flow inlet and an air flow outlet. By rotatably arranging a deflector part on the outer surface of the main body, a second air flow cavity is formed between the deflector part and the main body. By rotating the deflector part, the first state in which the first air flow cavity is blocked from the second air flow cavity and directly communicates with the outside or the second state in which the first air flow cavity communicates with the second air flow cavity to communicate with the outside through the second air flow cavity can be switched. And by arranging a limiting component between the deflector part and the main body to limit the deflector part and the main body to each other when the deflector part rotates to the first state or the second state, different air outlet modes can be switched, that is, the air flow in the first air flow cavity can be blown out directly from the air flow outlet without being guided by the deflector part or blown out along the curved outer surface of the main body after being guided by the deflector part, so that a single deflector nozzle of the hair care appliance can switch different air outlet modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated into the specification and constitute a part of the present disclosure. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to explain the technical solutions of the present disclosure.

[0020] Figure 1 It is a schematic diagram of the Coanda effect generated when water flows through the convex surface of a spoon.

[0021] Figure 2 It is a structural diagram of a hair care appliance shown in an exemplary embodiment of the present disclosure.

[0022] Figure 3 It is a structural diagram of a deflector nozzle shown in an exemplary embodiment of the present disclosure.

[0023] Figure 4 It is another structural diagram of a deflector nozzle shown in an exemplary embodiment of the present disclosure.

[0024] Figure 5 It is Figure 3 an exploded view of the deflector nozzle shown.

[0025] Figure 6 It is Figure 3 a transverse cross-sectional view of the deflector nozzle shown.

[0026] Figure 7 It is Figure 4 a transverse cross-sectional view of a deflector nozzle shown.

[0027] Figure 8 It is Figure 4 another transverse cross-sectional view of the deflector nozzle shown.

[0028] Figure 9 It is Figure 4 yet another transverse cross-sectional view of the deflector nozzle shown.

[0029] Figure 10 is Figure 3 a longitudinal sectional view of the diversion air nozzle shown in the figure.

[0030] Figure 11 is Figure 10 an enlarged view of part A in the figure.

[0031] Figure 12 a structural diagram of an air flow guiding assembly shown in an exemplary embodiment of the present disclosure.

[0032] Figure 13 is Figure 12 a top view of the air guiding vane in the air flow guiding assembly shown in the figure.

[0033] Explanation of reference numerals:

[0034] Hair care appliance 00;

[0035] Handle 1; Diversion air nozzle 2;

[0036] First housing 11, internal space 111, air inlet 112, air outlet 113; Air flow generator 12; Heater 13; Controller 14, user interface 141, control module 142;

[0037] Main body part 20; Second housing 21, installation groove 210, first air flow cavity 211, air flow inlet 212, air flow outlet 213; Skirt 22; Air flow guiding assembly 23, air inlet side F1, air outlet side F2, support member 231, support piece 2311, first side edge L1, second side edge L2, base 2312, buckle 2313, air guiding vane 232, first air guiding part 2321, second air guiding part 2322; Diversion part 30; Second air flow cavity 301, first channel 3011, second channel 3012, first opening 302, second opening 303; Mounting member 31, first mounting member 311, second mounting member 312; Diversion main body 32; Protrusion 33; Partition 34; Limiting assembly 40; First limiting part 41, bullet head 411, elastic member 412; Second limiting part 42, groove 420. Detailed implementation manners

[0038] Here, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. When the following description involves the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements.

[0039] If there are terms related to directional indication or positional relationship in the embodiments of the present disclosure (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, terms such as "first" and "second" in the embodiments of the present disclosure are only for the purpose of convenient description and should not be construed as indicating or implying relative importance.

[0040] The embodiments of the present disclosure provide a diversion air nozzle applied to a hair care appliance and a hair care appliance including the diversion air nozzle. The diversion air nozzle includes a main body portion and a diversion portion; the main body portion includes a first air flow chamber, an air inlet and an air outlet communicating with the first air flow chamber, and the main body portion has a curved outer surface; the diversion portion is rotatably disposed on the outer surface of the main body portion and covers a part of the outer surface of the main body portion to form a second air flow chamber between the diversion portion and the main body portion; the diversion portion can be rotated relative to the main body portion to a first state and a second state; when the diversion portion is rotated to the first state, the diversion portion does not cover the air outlet, the first air flow chamber is separated from the second air flow chamber and communicates with the outside respectively; when the diversion portion is rotated to the second state, the diversion portion covers the air outlet, the first air flow chamber communicates with the second air flow chamber and communicates with the outside through the second air flow chamber.

[0041] In the diversion air nozzle and the hair care appliance provided by the present disclosure, the main body portion of the diversion air nozzle has a curved outer surface, and the main body portion includes a first air flow chamber communicating with the air inlet and the air outlet. By rotatably disposing the diversion portion on the outer surface of the main body portion, a second air flow chamber is formed between the diversion portion and the main body portion. By rotating the diversion portion, the diversion portion can be made not to cover or cover the air outlet, so as to switch between the first state in which the first air flow chamber is separated from the second air flow chamber and directly communicates with the outside and the second state in which the first air flow chamber communicates with the second air flow chamber and communicates with the outside through the second air flow chamber, so that the air flow in the first air flow chamber can be adjusted to blow directly out of the air outlet without being guided by the diversion portion or to blow along the curved outer surface of the main body portion after being guided by the diversion portion, so that the hair care appliance can adsorb the hair to the curved outer surface of the main body portion during use and improve the situation of hair flyaway.

[0042] Here, a physics concept needs to be introduced to explain the principle of the present disclosure. When a fluid, such as an air current or a water current, flows over a convex surface, the fluid has a tendency to deviate from its original flow direction and instead flow along the convex surface it passes through. This phenomenon is called the Coanda Effect, also known as the Coandă effect or wall attachment effect. For example, in daily life, when rinsing a spoon under a faucet, with the convex surface of the spoon facing up, the water flow originally flows vertically from top to bottom, but after passing over the spoon, it changes to flow along the spoon, as Figure 1 shown, Figure 1 is a schematic diagram showing the Coanda effect when the water flow passes over the convex surface of the spoon.

[0043] In an embodiment of the present disclosure, the main body portion has a curved outer surface. When the air flow in the first air flow cavity is guided by the guiding portion and blown out along the curved outer surface of the main body portion, the Coanda effect is generated on the curved outer surface of the main body portion, and the air flow changes from the original tangential flow along the curved outer surface of the main body portion to the circumferential flow along the curved outer surface of the main body portion. The air flow generates a suction force that pulls the hair towards the curved outer surface of the main body portion and a repulsive force that pushes the hair away from the curved outer surface of the main body portion due to the interaction of forces near the curved outer surface of the main body portion. Since longer hair is heavier than shorter hair, this repulsive force is sufficient to affect shorter hair but not sufficient to affect longer hair, and this suction force is greater than this repulsive force. Therefore, longer hair is usually attached to the curved outer surface of the main body portion under the action of this suction force and is located in the outer layer, while shorter hair is usually pushed by this repulsive force and attached to the side close to the user's scalp and is located in the inner layer. In this way, the relatively easy-to-fly-up short hair is located in the inner layer of the hair and the relatively smooth long hair is located in the outer layer, thus improving the situation of hair flying up.

[0044] To enable those skilled in the art to better understand the technical solutions in the embodiments of the present disclosure and make the above-mentioned objects, features, and advantages of the embodiments of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings. Without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0045] An embodiment of the present disclosure provides a hair care appliance. Please refer to Figure 2 , Figure 2 which is a structural diagram of a hair care appliance shown in an exemplary embodiment of the present disclosure. The hair care appliance 00 may include a handle 1 and a guiding nozzle 2, and the guiding nozzle 2 is detachably connected to the handle 1.

[0046] The handle 1 may include a first housing 11, an air flow generator 12, a heater 13, and a controller 14. The first housing 11 may be tubular. The first housing 11 includes an internal space 111, an air inlet 112, and an air outlet 113 that communicate with the internal space 111. Air is inhaled into the internal space 111 by the air flow generator 12 through the air inlet 112, and air is discharged from the internal space 111 through the air outlet 113. The air flow generator 12 is accommodated in the internal space 111. The air flow generator 12 may include a motor and an impeller. When the motor drives the impeller to rotate, an air flow is generated. The heater 13 is also accommodated in the internal space 111 and is disposed between the air flow generator 12 and the air outlet 113. The heater 13 includes a heating element, and the heating element selectively heats the air flow generated by the air flow generator 12. The controller 14 may include an electronic circuit for a user interface 141 and a control module 142. The user interface 141 is disposed on the surface of the first housing 11 and is used to turn on and off the hair care appliance 00 and adjust the speed of the air flow (e.g., low, medium, high) and the temperature of the air flow (e.g., cold, medium, hot). The user interface 141 may be one or more buttons or a slide switch. The user interface 141 may also be a dial or a touch screen. The user interface 141 may also be a combination of several of the above forms. The control module 142 is also accommodated in the internal space 111 and is used to control the air flow generator 12 and the heater 13 in response to an input from the user interface 141. For example, in response to an input from the user interface 141, the control module 142 may control the power / rate of the air flow generator 12 to adjust the speed of the air flow and control the power of the heater 13 to adjust the temperature of the air flow.

[0047] An embodiment of the present disclosure also provides a guiding nozzle. Please refer to Figures 3 to 5 , Figure 3 which is a structural diagram of a guiding nozzle shown in an exemplary embodiment of the present disclosure. Figure 4 which is another structural diagram of a guiding nozzle shown in an exemplary embodiment of the present disclosure. Figure 5 is Figure 3 an exploded view of the guiding nozzle shown in . The guiding nozzle 2 may include a main body portion 20 and a guiding portion 30. The guiding portion 30 is rotatably disposed on the outer surface of the main body portion 20, and the main body portion 20 is detachably connected to the handle 1.

[0048] The main body portion 20 may include a second housing 21. The second housing 21 may be cylindrical. For example, the second housing 21 may be cylindrical so that the guiding portion 30 disposed on the outer surface of the main body portion 20 can rotate smoothly around the main body portion 20. The second housing 21 includes a first air flow chamber 211, an air flow inlet 212, and an air flow outlet 213 that communicate with the first air flow chamber 211. The first air flow chamber 211 is formed inside the second housing 21. The air flow inlet 212 is opened on the bottom surface of the second housing 21, and the air flow outlet 213 is opened on the side surface of the second housing 21.

[0049] When the air guiding nozzle 2 is connected to the handle 1, the air inlet 212 communicates with the air outlet 113. Air is inhaled into the internal space 111 by the air flow generator 12 through the air inlet 112, forms an air flow and then is discharged from the internal space 111 through the air outlet 113. The air flow enters the first air flow chamber 211 through the air inlet 212 and is discharged from the first air flow chamber 211 through the air outlet 213. Since the air flow discharged from the air outlet 113 may be heated by the heater 13, the air flow entering the first air flow chamber 211 through the air inlet 212 may also be a hot air flow. For safety in use, the material of the second housing 21 should preferably be a poor conductor of heat (such as plastic), rather than a good conductor of heat (such as metal).

[0050] Wherein: the air inlet 212 may be a round hole or a polygonal hole formed in the bottom surface of the second housing 21, and the shape and size of the air inlet 212 may be adapted to the shape and size of the air outlet 113; the air outlet 213 may be a long hole formed in the side surface of the second housing 21; the air outlet 213 may be arranged parallel to the length direction of the main body portion 20. For example, the air outlet 213 may be linear and extend along the axial direction of the second housing 21; the air outlet 213 may also not be arranged parallel to the length direction of the main body portion 20. For example, the air outlet 213 may be spiral and extend along both the axial direction and the circumferential direction of the second housing 21. In the embodiments of the present disclosure and the accompanying drawings, the main body portion 20 is described by taking the air outlet 213 arranged parallel to the length direction of the main body portion 20 as an example, but the specific shape and size of the air outlet 213 are not limited.

[0051] The main body portion 20 may further include a skirt 22. The skirt 22 may be a tubular shape with an irregular end, and the skirt 22 is sleeved on the peripheral edge of one end of the second housing 21 close to the bottom surface. The shape and size of the end of the skirt 22 are adapted to the shape and size of the top end of the first housing 11, so that the second housing 21 of the air guiding nozzle 2 and the first housing 11 of the handle 1 can be assembled and disassembled smoothly. The skirt 22 may be detachably connected to the second housing 21, the skirt 22 may also be fixedly connected to the second housing 21, and the skirt 22 may also be integrally formed with the second housing 21. The embodiments of the present disclosure do not limit the specific setting manner of the skirt 22.

[0052] The flow guiding part 30 may include a mounting member 31 and a flow guiding main body 32. The mounting member 31 is rotatably sleeved on the outer surface of the main body part 20 for mounting the flow guiding part 30 on the main body part 20. The flow guiding main body 32 is disposed on the outer surface of the main body part 20 and covers a part of the outer surface of the main body part 20 for forming a second air flow cavity 301 between the flow guiding part 30 and the main body part 20. The number of the mounting members 31 may be two, and the flow guiding main body 32 is connected between the two mounting members 31. The two ends of the flow guiding part 30 in the circumferential direction are respectively provided with a first opening 302 and a second opening 303 communicating with the second air flow cavity 301. Specifically, the two sides of the flow guiding main body 32 are respectively provided with the first opening 302 and the second opening 303 communicating with the second air flow cavity 301, and the second air flow cavity 301 communicates with the outside through the first opening 302 and the second opening 303.

[0053] Please refer to Figures 6 to 9 , Figure 6 which is Figure 3 a transverse cross-sectional view of the flow guiding nozzle shown in Figure 7 and Figure 4 is a transverse cross-sectional view of the flow guiding nozzle shown in Figure 8 and Figure 4 is another transverse cross-sectional view of the flow guiding nozzle shown in Figure 9 and Figure 4 is yet another transverse cross-sectional view of the flow guiding nozzle shown in. The flow guiding part 30 can be rotated relative to the main body part 20 to a first state and a second state. When the flow guiding part 30 rotates to the first state, as shown in Figure 3 and Figure 6 , the flow guiding main body 32 of the flow guiding part 30 does not cover the air flow outlet 213, the first air flow cavity 211 is separated from the second air flow cavity 301 and communicates with the outside respectively, and the air flow in the first air flow cavity 211 is directly blown out from the air flow outlet 213 without being guided by the flow guiding part 30; when the flow guiding part 30 rotates to the second state, as shown in Figure 4 and Figures 7 - 9 , the flow guiding main body 32 of the flow guiding part 30 covers the air flow outlet 213, the first air flow cavity 211 communicates with the second air flow cavity 301 and communicates with the outside through the second air flow cavity 301, and the air flow in the first air flow cavity 211 is blown out along the outer surface of the main body part 20 in different directions through the first opening 302 and / or the second opening 303 after being guided by the flow guiding part 30.

[0054] Wherein: The diversion main body 32 is arranged parallel to the air flow outlet 213, so that when the diversion part 30 rotates to this second state, the diversion main body 32 can cover the air flow outlet 213; the length of the diversion main body 32 is greater than the length of the air flow outlet 213, so that the length of the second air flow cavity 301 is greater than the length of the air flow outlet 213, thereby when the diversion part 30 rotates to this second state, ensuring that the air flow blown out from the air flow outlet 213 all enters the second air flow cavity 301 without leaking to the outside and causing wind waste. Because the diversion main body 32 is arranged parallel to the air flow outlet 213, the first opening 302 and the second opening 303 are also arranged parallel to the air flow outlet 213, and the lengths of the first opening 302 and the second opening 303 are not less than the length of the air flow outlet 213, thereby when the diversion part 30 rotates to this second state, avoiding the reduction of the air outlet area of the diversion nozzle 2 and ensuring that the diversion nozzle 2 has a large enough air outlet area.

[0055] The diversion part 30 may further include a protrusion 33. The protrusion 33 may be strip-shaped, and the protrusion 33 is arranged on the side of the diversion part 30 facing the main body part 20. Specifically, the protrusion 33 is arranged on the side of the diversion main body 32 facing the second housing 21 and is located in the second air flow cavity 301. The protrusion 33 is telescopically arranged, and the protrusion 33 can extend to approach the main body part 20 or retract to be away from the main body part 20. When the protrusion 33 is in the extended state, as Figures 6 - 8 shown, the protrusion 33 abuts against the outer surface of the main body part 20 to divide the second air flow cavity 301 into a first channel 3011 and a second channel 3012. The first channel 3011 and the second channel 3012 are respectively communicated with the outside through the first opening 302 and the second opening 303; when the protrusion 33 is in the retracted state, as Figure 9 shown, the protrusion 33 is separated from the outer surface of the main body part 20, so that the first channel 3011 is communicated with the second channel 3012 and merged into the second air flow cavity 301, and the second air flow cavity 301 is simultaneously communicated with the outside through the first opening 302 and the second opening 303.

[0056] When the diversion part 30 rotates to this first state, the diversion part 30 includes a preset position, as Figure 6 shown. The protrusion 33 is in the extended state, the protrusion 33 abuts against the outer surface of the main body part 20, the diversion main body 32 of the diversion part 30 does not cover the air flow outlet 213 of the main body part 20, the first air flow cavity 211 is separated from the second air flow cavity 301 and is respectively communicated with the outside, and the air flow in the first air flow cavity 211 is directly blown out along the radial direction of the second housing 21 by the air flow outlet 213 without being guided by the diversion part 30. At this time, the diversion nozzle 2 is a conventional nozzle. It should be noted that in the case of Figure 6 shown, the protrusion 33 is in the extended state; in some embodiments, the protrusion 33 may also be in the retracted state. It should also be noted that in Figure 6In the shown case, the included angle between the protrusion 33 and the air flow outlet 213 is about 180°. In some embodiments, the included angle between the protrusion 33 and the air flow outlet 213 can also be other values, as long as it is ensured that the air flow outlet 213 is not covered by the guiding main body 32.

[0057] When the guiding part 30 rotates to this second state, the guiding part 30 includes three preset positions, namely a first preset position, a second preset position, and a third preset position, as Figures 7 - 9 shown.

[0058] When the guiding part 30 is in the first preset position, as Figure 7 shown, the protrusion 33 is in the extended state and is located upstream of the air flow outlet 213 in the first direction. The part of the guiding part 30 for forming the first channel 3011 (i.e., the part of the guiding main body 32 corresponding to the first channel 3011) covers the air flow outlet 213. The air flow outlet 213 is communicated with the first channel 3011 and is communicated with the outside through the first opening 302. After the air flow in the first air cavity 211 blows out from the air flow outlet 213, it is guided by the guiding part 30 and blows out along the outer surface of the main body part 20 in the first direction (for example, the clockwise direction) through the first opening 302;

[0059] When the guiding part 30 is in the second preset position, as Figure 8 shown, the protrusion 33 is in the extended state and is located upstream of the air flow outlet 213 in the second direction. The part of the guiding part 30 for forming the second channel 3012 (i.e., the part of the guiding main body 32 corresponding to the second channel 3012) covers the air flow outlet 213. The air flow outlet 213 is communicated with the second channel 3012 and is communicated with the outside through the second opening 303. After the air flow in the first air cavity 211 blows out from the air flow outlet 213, it is guided by the guiding part 30 and blows out along the outer surface of the main body part 20 in the second direction (for example, the counterclockwise direction) through the second opening 303;

[0060] When the guiding part 30 is in the third preset position, as Figure 9 shown, the protrusion 33 is in the retracted state. The air flow outlet 213 is communicated with the second air cavity 301 and is simultaneously communicated with the outside through the first opening 302 and the second opening 303. After the air flow in the first air cavity 211 blows out from the air flow outlet 213, it is guided by the guiding part 30. A part of it blows out along the outer surface of the main body part 20 in the first direction through the first opening 302, and at the same time, another part blows out along the outer surface of the main body part 20 in the second direction through the second opening 303.

[0061] Among them: the guide part 30 is an axisymmetric structure, the mounting part 31 and the guide body 32 are symmetrical about the symmetry axis of the guide part 30, and the protrusion 33 is arranged at the symmetry axis position of the guide part 30, so that the protrusion 33 is also symmetrical about the symmetry axis of the guide part 30, so that when the guide part 30 rotates to the second state, the part of the guide body 32 corresponding to the first channel 3011 and the part of the guide body 32 corresponding to the second channel 3012 are the same in shape and size, so as to ensure that under the same other conditions, when the guide part 30 is in the first preset position and the guide part 30 is in the second preset position, the airflow blown out by the guide nozzle 2 only has a different wind direction but no different wind speed.

[0062] The air guide portion 30 may further include partitions 34. There may be multiple partitions 34, each disposed at the first opening 302 and the second opening 303. The partitions 34 may include multiple first partitions and multiple second partitions, with the multiple first partitions spaced apart along the length of the first opening 302 and the multiple second partitions spaced apart along the length of the second opening 303. By spacing the multiple first partitions and the multiple second partitions at the first opening 302 and the second opening 303, respectively, the airflow from the air outlet 213 can be evenly directed through the first opening 302 and / or the second opening 303. This also prevents hair from being drawn into the interior of the air guide nozzle 2 through the first opening 302 and / or the second opening 303 during use of the hair care device 00.

[0063] The plurality of first baffles may be arranged perpendicular to the length direction of the first opening 302, and the plurality of second baffles may be arranged perpendicular to the length direction of the second opening 303; the plurality of first baffles may be arranged obliquely to the length direction of the first opening 302, and the plurality of second baffles may be arranged obliquely to the length direction of the second opening 303; the plurality of first baffles may be arranged partially perpendicular to the length direction of the first opening 302 and partially obliquely to the length direction of the first opening 302, and the plurality of second baffles may be arranged partially perpendicular to the length direction of the second opening 303 and partially obliquely to the length direction of the second opening 303. The embodiments and drawings of the present disclosure illustrate the guide portion 30 using the example of the plurality of first baffles and the plurality of second baffles being arranged perpendicular to the length directions of the first opening 302 and the second opening 303, respectively, but do not limit the specific arrangement of the plurality of first baffles and the plurality of second baffles.

[0064] Please also refer to Figure 5 、 Figure 10 and Figure 11 , Figure 10 yes Figure 3 The longitudinal sectional view of the guide nozzle shown, Figure 11 yes Figure 10An enlarged view of part A. The flow guiding nozzle 2 may further include a limiting component 40. The limiting component 40 is disposed between the flow guiding portion 30 and the main body portion 20 and is used to limit the flow guiding portion 30 and the main body portion 20 to each other when the flow guiding portion 30 rotates relative to the main body portion 20 to the first state or the second state.

[0065] The limiting component 40 may include a first limiting portion 41 and a second limiting portion 42, and the second limiting portion 42 is adapted to the first limiting portion 41. Among them, the first limiting portion 41 is disposed on one of the flow guiding portion 30 and the main body portion 20, and the second limiting portion 42 is disposed on the other of the flow guiding portion 30 and the main body portion 20. For example, the first limiting portion 41 is disposed on the main body portion 20, and the second limiting portion 42 is disposed on the flow guiding portion 30. When the flow guiding portion 30 rotates relative to the main body portion 20 to the first state or the second state, the first limiting portion 41 cooperates with the second limiting portion 42 to limit the flow guiding portion 30 and the main body portion 20 to each other.

[0066] In the first state, the flow guiding portion 30 includes a preset position; in the second state, the flow guiding portion 30 includes a plurality of preset positions. Assuming that the sum of the numbers of the preset positions corresponding to the first state and the second state is a target number, then the number of at least one of the first limiting portion 41 and the second limiting portion 42 is the target number, so that when the flow guiding portion 30 rotates to any preset position in the first state or the second state, at least one first limiting portion 41 and at least one second limiting portion 42 are in limiting cooperation, thereby ensuring that when the flow guiding portion 30 rotates to any preset position, the limiting component 40 can limit the flow guiding portion 30 and the main body portion 20 to each other. Taking the example that the flow guiding portion 30 in the first state includes one preset position and the flow guiding portion 30 in the second state includes two preset positions, then the target number is three, and the number of at least one of the first limiting portion 41 and the second limiting portion 42 is three.

[0067] For example: the number of the first limiting portions 41 is one, and one first limiting portion 41 is disposed on the main body portion 20; the number of the second limiting portions 42 is three, and the three second limiting portions 42 are circumferentially spaced apart on the flow guiding portion 30 along the main body portion 20. When the flow guiding portion 30 rotates to different preset positions, the same first limiting portion 41 cooperates with different second limiting portions 42 in a limiting manner.

[0068] For another example: the number of the first limiting portions 41 is three, and the three first limiting portions 41 are circumferentially spaced apart on the main body portion 20 along the main body portion 20; the number of the second limiting portions 42 is one, and one second limiting portion 42 is disposed on the flow guiding portion 30. When the flow guiding portion 30 rotates to different preset positions, different first limiting portions 41 cooperate with the same second limiting portion 42 in a limiting manner.

[0069] For another example: the number of the first limiting portions 41 and the second limiting portions 42 is three. The three first limiting portions 41 and the three second limiting portions 42 are evenly spaced along the circumferential direction of the main body portion 20 and are respectively arranged on the main body portion 20 and the diversion portion 30. When the diversion portion 30 rotates to different preset positions, different first limiting portions 41 are in limiting cooperation with different second limiting portions 42.

[0070] Still for another example: the number of the first limiting portions 41 is three, and the three first limiting portions 41 are spaced along the circumferential direction of the main body portion 20 on the main body portion 20; the number of the second limiting portions 42 is multiple, and the multiple second limiting portions 42 are spaced along the circumferential direction of the main body portion 20 on the diversion portion 30... The number of the first limiting portions 41 and the second limiting portions 42 can have various combinations. The embodiments of the present disclosure do not limit the specific number of the first limiting portions 41 and the second limiting portions 42, and no further examples will be given here. It can be understood that in the above examples, the positions of the first limiting portions 41 and the second limiting portions 42 can be interchanged.

[0071] Please continue to refer to Figure 5 、 Figure 10 and Figure 11 ... The first limiting portion 41 includes a bullet head 411 arranged on the main body portion 20, and the second limiting portion 42 is a groove 420 formed at the top of the diversion portion 30 with the notch facing downward, and the groove 420 is adapted to the bullet head 411. When the diversion portion 30 rotates to the first state or the second state, the bullet head 411 is partially inserted into the groove 420 to limit the diversion portion 30 and the main body portion 20 to each other. Among them, the first state corresponds to a preset position, the second state corresponds to two preset positions, the target number is three, the number of the bullet heads 411 is one, and the number of the grooves 420 is three.

[0072] Specifically: an installation groove 210 with the notch facing upward is formed at the top of the second shell 21 of the main body portion 20; the first limiting portion 41 includes a bullet head 411 and an elastic member 412. The bullet head 411 is telescopically installed in the installation groove 210 through the elastic member 412 and partially protrudes from the notch of the installation groove 210. The elastic member 412 is installed in the installation groove 210, one end of the elastic member 412 abuts against the bottom of the installation groove 210, and the other end abuts against the bottom of the bullet head 411; the installation member 31 of the diversion portion 30 includes a first installation member 311 and a second installation member 312; the first installation member 311 is sleeved on the top end of the main body portion 20 and covers the top surface of the main body portion 20 (that is, the top surface of the second shell 21), and the second installation member 312 is sleeved on the bottom end of the main body portion 20 and abuts against the top end of the skirt 22; the groove 420 is formed on the surface of the first installation member 311 facing the main body portion 20.

[0073] When the diversion part 30 rotates from one preset position to another preset position, the warhead 411 is pressed by the first mounting member 311 and retracts into the mounting groove 210. At the same time, the warhead 411 presses the elastic member 412 to make the elastic member 412 in a compressed state;

[0074] When the diversion part 30 rotates to any one of the preset positions, the warhead 411 is opposite to a groove 420 in the length direction of the main body part 20. The warhead 411 is pushed out of the mounting groove 210 by the thrust of the compressed elastic member 412 and partially engages with the groove 420.

[0075] It should be noted that when the diversion part 30 rotates from one preset position to another preset position, it is necessary to rely on the pressure generated by the inner wall of the groove 420 on the warhead 411 when the diversion part 30 rotates to push the warhead 411 out of the groove 420. Therefore, the inner wall of the groove 420 needs to be smoothly arranged, and the width of the groove 420 should gradually decrease from the groove opening of the groove 420 to the groove bottom of the groove 420.

[0076] In the diversion air nozzle 2 provided by the embodiment of the present disclosure, the main body part 20 has a curved outer surface. The main body part 20 includes a first air flow cavity 211 communicating with the air inlet 212 and the air outlet 213. By rotatably arranging the diversion part 30 on the outer surface of the main body part 20, a second air flow cavity 301 is formed between the diversion part 30 and the main body part 20. By rotating the diversion part 30, the diversion part 30 can be made to not cover or cover the air outlet 213, so as to switch between a first state in which the first air flow cavity 211 is blocked from communicating directly with the outside and a second state in which the first air flow cavity 211 communicates with the second air flow cavity 301 to communicate with the outside through the second air flow cavity 301. And by arranging a limiting component 40 between the main body part 20 and the diversion part 30, when the diversion part 30 rotates to the first state or the second state, the diversion part 30 and the main body part 20 are mutually limited, so that different air outlet modes can be switched, that is, the air flow in the first air flow cavity 211 can be blown out directly from the air outlet 213 without being guided by the diversion part 30 or blown out along the curved outer surface of the main body part 20 after being guided by the diversion part 30, so that one air nozzle of the hair care appliance 00 can switch different air outlet modes.

[0077] The embodiment of the present disclosure also provides an air flow guiding assembly. Please refer to Figure 10 and Figure 12 , Figure 12It is a structural diagram of an air flow guiding component shown in an exemplary embodiment of the present disclosure. The air flow guiding component 23 is disposed in the second housing 21 of the main body 20 and located in the first air flow chamber 211. The air flow guiding component 23 has an air inlet side F1 corresponding to the air inlet 212 of the second housing 21 and an air outlet side F2 corresponding to the air outlet 213 of the second housing 21. The air flow guiding component 23 is configured to uniformly guide the air flow introduced into the first air flow chamber 211 from the air inlet 212 out of the first air flow chamber 211 through the air outlet 213. The air flow guiding component 23 may include a support member 231 and a plurality of air guiding vanes 232. The plurality of air guiding vanes 232 are spaced apart along the length direction of the support member 231 and disposed on the support member 231.

[0078] The support member 231 may include a support sheet 2311 and a base 2312. The support sheet 2311 may be a sheet-shaped polygon structure (such as a rectangle, an isosceles trapezoid, or a right trapezoid). The support sheet 2311 is connected to the air guiding vanes 232 and is configured to support the plurality of air guiding vanes 232. The support sheet 2311 is disposed in the second housing 21 parallel to the length direction of the main body 20 to prevent the support sheet 2311 from affecting the air flow direction in the first air flow chamber 211. The support sheet 2311 has a first side edge L1 corresponding to the air inlet side F1 of the air flow guiding component 23 and a second side edge L2 corresponding to the air outlet side F2 of the air flow guiding component 23. The base 2312 is connected to the first side edge L1 of the support sheet 2311. The base 2312 may be a hollow ring structure to prevent the base 2312 from blocking the air flow introduced from the air inlet side F1. The base 2312 is connected to the second housing 21 and is configured to mount the support sheet 2311 in the second housing 21. Specifically, a plurality of buckles 2313 are spaced apart along the circumferential direction of the outer surface of the base 2312, and a clamping structure adapted to the buckles 2313 may be correspondingly provided on the inner surface of the second housing 21, so that the base 2312 is clamped to the second housing 21 through the buckles 2313.

[0079] In the embodiment of the present disclosure, since the air inlet 212 of the main body 20 is opened on the bottom surface of the second housing 21 and the air outlet 213 is opened on the side surface of the second housing 21, the first side edge L1 and the second side edge L2 are two adjacent side edges of the support sheet 2311; in some embodiments, the first side edge L1 and the second side edge L2 may also be two opposite side edges of the support sheet 2311.

[0080] The air guide vane 232 may include a first air guide portion 2321 and a second air guide portion 2322. The second air guide portion 2322 is disposed near the air inlet side F1 of the air flow guiding assembly 23, and the second air guide portion 2322 is bent toward the air inlet side F1 of the air flow guiding assembly 23 for capturing a part of the air flow from the air inlet side F1 and delivering it to the first air guide portion 2321. The first air guide portion 2321 is disposed near the air outlet side F2 of the air flow guiding assembly 23, and the first air guide portion 2321 is disposed flat for guiding the air flow delivered by the second air guide portion 2322 to the air outlet side F2. The first air guide portion 2321 may be disposed perpendicular to the length direction of the main body portion 20 so that the air flow blows out horizontally from the air outlet side F2; the first air guide portion 2321 may also not be disposed perpendicular to the length direction of the main body portion 20 so that the air flow blows out obliquely from the air outlet side F2.

[0081] Wherein, in the length direction of the support member 231, one side edges of all the air guide vanes 232 near the air outlet side F2 are flush, and one side edges near the air inlet side F1 are stepped. Specifically, the sizes of the air guide vanes 232 gradually increase in the direction away from the air inlet side F1, so that the sizes of the air guide vanes 232 closer to the air inlet side F1 are smaller, thereby preventing most of the air flow introduced from the air inlet side F1 from being captured and discharged by the air guide vanes 232 closer to the air inlet side F1, resulting in too small air flow at the position of the air outlet side F2 away from the air inlet side F1 (i.e., the upper end of the air flow guiding assembly 23). Furthermore, it ensures uniform air outlet at every place of the air outlet side F2 of the air flow guiding assembly 23, and also ensures uniform air outlet at every place of the air outlet 213 of the diversion air nozzle 2.

[0082] Please refer to Figure 13 , Figure 13 is Figure 12 a top view of the air guide vanes in the air flow guiding assembly shown in the figure. In the projection in the vertical direction, the air guide vane 232 farthest from the air inlet side F1 has the largest size and covers all the other air guide vanes 232. The first air guide portions 2321 of all the air guide vanes 232 are respectively different-sized arcs formed by cutting the same circle with line segments of different lengths, so the edges of all the first air guide portions 2321 are arcs. Since the second housing 21 is cylindrical, the main body portion 20 also has a curved inner surface. In some embodiments, the curvature of the edge of the first air guide portion 2321 is different from the curvature of the inner surface of the main body portion 20, and only part of the edge of the first air guide portion 2321 abuts against the inner surface of the main body portion 20; in some embodiments, the curvature of the edge of the first air guide portion 2321 is the same as the curvature of the inner surface of the main body portion 20, and the edge of the first air guide portion 2321 abuts against the inner surface of the main body portion 20 everywhere.

[0083] In some embodiments, the support member 231 may be integrally formed with a plurality of air guiding vanes 232; in some embodiments, the support member 231 may also be separately provided from the plurality of air guiding vanes 232. For example, the support member 231 may be provided with a plurality of first slots at intervals along its length direction, and the plurality of air guiding vanes 232 may be directly inserted onto the support member 231 from bottom to top in the order of increasing size. For another example, the support member 231 may be provided with a plurality of first slots at intervals along its length direction, and each air guiding vane 232 is provided with a second slot adapted to the first slot at the corresponding position, and the plurality of air guiding vanes 232 are installed onto the support member 231 through the insertion fit between the second slot and the first slot. Among them: the first slot is opened on one side of the support member 231 close to the air outlet side F2, that is, the side where the second side L2 is located; the second slot is opened on one side of the air guiding vane 232 close to the air inlet side F1, that is, the side where the second air guiding portion 2322 is located.

[0084] In the air flow guiding assembly 23 provided by the embodiments of the present disclosure, the air flow guiding assembly 23 includes a support member 231 and a plurality of air guiding vanes 232 arranged at intervals along its length direction. By making the size of the air guiding vanes 232 gradually increase in the direction away from the air inlet side F1, and by bending the side of the air guiding vane 232 close to the air inlet side F1 towards the air inlet side F1, the air flow entering from the air inlet side F1 is separated into multiple portions by the plurality of air guiding vanes 232 on the way from the vicinity of the air inlet side F1 to away from the air inlet side F1 and is respectively led out to the air outlet side F2 by each air guiding vane 232, so that the air flow blown out from the air outlet side F2 is more uniform.

[0085] It should be noted that the technical solutions or technical features described in the above embodiments may be combined or supplemented with each other without conflict. The scope of protection of the present disclosure is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A diversion air nozzle, applied to a hair care appliance, characterized in that, Comprising: A main body portion, the main body portion including a first air flow chamber, an air flow inlet and an air flow outlet communicated with the first air flow chamber, and the main body portion having a curved outer surface; A guiding portion, the guiding portion being rotatably disposed on the outer surface of the main body portion and covering a part of the outer surface of the main body portion to form a second air flow chamber between the guiding portion and the main body portion, the guiding portion being rotatable to a first state or a second state, when the guiding portion rotates to the first state, the second air flow chamber is separated from the first air flow chamber, and when the guiding portion rotates to the second state, the second air flow chamber is communicated with the first air flow chamber through the air flow outlet; and A limiting assembly, the limiting assembly being disposed between the guiding portion and the main body portion for limiting the guiding portion and the main body portion to each other when the guiding portion rotates to the first state or the second state.

2. The air guide nozzle according to claim 1, characterized in that: The limiting assembly includes a first limiting portion and a second limiting portion that are adapted to each other, the first limiting portion is disposed on one of the main body portion and the guiding portion, and the second limiting portion is disposed on the other of the main body portion and the guiding portion; when the guiding portion rotates to the first state or the second state, the first limiting portion and the second limiting portion are in limiting cooperation.

3. The air guide nozzle according to claim 2, characterized in that: The first limiting portion includes a bullet head disposed on the main body portion, and the second limiting portion is a groove formed on the guiding portion and having a notch facing the main body portion, and the bullet head is adapted to the groove; when the guiding portion rotates to the first state or the second state, the bullet head is partially inserted into the groove.

4. The diversion air nozzle according to claim 3, characterized in that, The inner wall of the groove is smoothly provided, and the width of the groove gradually decreases from the notch to the bottom of the groove.

5. The flow guiding air nozzle according to claim 3, wherein, An installation groove with a notch facing the guiding portion is formed at the top of the main body portion, and the bullet head is telescopically installed in the installation groove and partially protrudes from the notch of the installation groove.

6. The diversion air nozzle according to claim 5, characterized in that The first limiting portion further includes an elastic member, the elastic member is installed in the installation groove, one end of the elastic member abuts against the bottom of the installation groove, and the other end abuts against the bottom of the bullet head.

7. The diversion air nozzle according to claim 2, characterized in that, The first state corresponds to a preset position, the second state corresponds to a plurality of preset positions, and the sum of the number of preset positions corresponding to the first state and the second state is a target number, and the number of at least one of the first limiting portion and the second limiting portion is the target number; when the guiding portion rotates to any one of the preset positions, at least one of the first limiting portions and at least one of the second limiting portions are in limiting cooperation.

8. The flow guiding air nozzle according to claim 7, wherein, The number of the first limiting portions is one, the number of the second limiting portions is the target number, and the target number of the second limiting portions are circumferentially spaced apart on the guiding portion along the circumference of the main body portion; when the guiding portion rotates to different preset positions, the first limiting portion and different second limiting portions are in limiting cooperation.

9. The flow guiding air nozzle according to claim 2, wherein The guiding portion includes a first installation member sleeved on the top end of the main body portion and covering the top surface of the main body portion, and the first limiting portion or the second limiting portion is disposed on the surface of the first installation member facing the main body portion.

10. A hair care device, characterized in that: Comprising a handle and a deflector nozzle as described in any one of claims 1 to 9, the handle is detachably connected to the main body portion.

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