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 and a flow guide part; 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; when the flow guide part rotates to the first state, the flow guide part does not cover the airflow outlet, and the first airflow cavity and the second airflow cavity are separated and communicate with the outside; when the flow guide part rotates to the second state, the flow guide part covers the airflow outlet, and the first airflow cavity communicates with the second airflow cavity and communicates with the outside through the second airflow cavity. The flow guide tuyere and the hair care appliance provided by the utility model can improve the condition that the hair flies up.

Description

Technical Field

[0001] The present disclosure relates to the technical field of beauty and hair care, and particularly to a diversion 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 even require refinement 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, due to their short length, and the friction between the hair and pillows and clothes, the newly born broken hair and fractured hair are usually prone to flyaways, which is commonly known as "frizzy hair". When using a hair care appliance to care for hair to create a smooth appearance, the occurrence of flyaways usually affects the desired care effect.

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

[0004] The present disclosure provides a diversion nozzle and a hair care appliance, which can improve the situation of hair flyaways.

[0005] In a first aspect, an embodiment of the present disclosure provides a diversion 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 flow inlet and an air flow outlet that are communicated with the first air flow cavity, and the main body portion has a curved outer surface; and

[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;

[0008] When the diversion portion rotates to a first state, the diversion portion does not cover the air flow outlet, and the first air flow cavity is separated from the second air flow cavity and is respectively communicated with the outside;

[0009] When the diversion portion rotates to a second state, the diversion portion covers the air flow outlet, and the first air flow cavity is communicated with the second air flow cavity and is communicated with the outside through the second air flow cavity.

[0010] Optionally, a protrusion is provided on the side of the diversion portion facing the main body portion, and the protrusion can extend to approach the main body portion or retract to be away from the main body portion.

[0011] Optionally, the guiding part for forming a part of the second air flow cavity and the protrusion are both arranged parallel to the air flow outlet, and the length of the protrusion is not less than the length of the air flow outlet, and the length of the part of the guiding part for forming the second air flow cavity is greater than the length of the air flow outlet.

[0012] Optionally, first openings and second openings communicating with the second air flow cavity are respectively formed at two ends of the guiding part in the circumferential direction, and the second air flow cavity communicates with the outside through the first openings and the second openings.

[0013] Optionally, the protrusion has a protruding state and a retracted state;

[0014] When the protrusion is in the protruding state, the protrusion abuts against the outer surface of the main body part to divide the second air flow cavity into a first channel and a second channel, and the first channel and the second channel respectively communicate with the outside through the first opening and the second opening;

[0015] When the protrusion is in the retracted state, the protrusion is separated from the outer surface of the main body part to enable the first channel to communicate with the second channel.

[0016] Optionally, the second state includes a first preset position;

[0017] When the guiding part is in the first preset position, the protrusion is in the protruding state, the part of the guiding part for forming the first channel covers the air flow outlet, and the air flow outlet communicates with the first channel and communicates with the outside through the first opening.

[0018] Optionally, the second state includes a second preset position;

[0019] When the guiding part is in the second preset position, the protrusion is in the protruding state, the part of the guiding part for forming the second channel covers the air flow outlet, and the air flow outlet communicates with the second channel and communicates with the outside through the second opening.

[0020] Optionally, the second state includes a third preset position;

[0021] When the guiding part is in the third preset position, the protrusion is in the retracted state, the air flow outlet communicates with the second air flow cavity and communicates with the outside through the first opening and the second opening at the same time.

[0022] Optionally, both the first opening and the second opening are arranged parallel to the air flow outlet, and the lengths of both the first opening and the second opening are not less than the length of the air flow outlet.

[0023] Optionally, the guiding part is arranged axially symmetrically, and the protrusion is arranged at the axis of symmetry of the guiding part.

[0024] Optionally, first openings and second openings communicating with the second air flow cavity are respectively formed at two ends of the guiding part in the circumferential direction, and the second air flow cavity communicates with the outside through the first openings and the second openings; the guiding part includes a plurality of partition plates, and the plurality of partition plates include a plurality of first partition plates arranged at intervals along the length direction of the first opening at the first opening and a plurality of second partition plates arranged at intervals along the length direction of the second opening at the second opening.

[0025] Optionally, the guiding part includes:

[0026] Mounting members, the number of the mounting members is two, and the two mounting members are rotatably sleeved on the outer surface of the main body part; and

[0027] A guiding main body, which is connected between the two mounting members and covers a part of the outer surface of the main body part to form the second air flow cavity between the guiding main body and the main body part.

[0028] Optionally, the air flow outlet is arranged parallel to the length direction of the main body part.

[0029] Optionally, the main body part is cylindrical, the air flow inlet is formed on the bottom surface of the main body part, and the air flow outlet is formed on the side surface of the main body part.

[0030] In a second aspect, an embodiment of the present disclosure provides a hair care appliance, including a handle and a guiding nozzle as described in any one of the first aspect, and the handle is detachably connected to the main body part.

[0031] In the guiding nozzle and the hair care appliance provided by the present disclosure, the main body part of the guiding nozzle has a curved outer surface, and the main body part includes a first air flow cavity communicating with the air flow inlet and the air flow outlet. By rotatably arranging a guiding part on the outer surface of the main body part, a second air flow cavity is formed between the guiding part and the main body part. By rotating the guiding part, the guiding part can be made not to cover or cover the air flow outlet, so as to switch between a first state in which the first air flow cavity is separated from the second air flow cavity and directly communicates with the outside and a second state in which the first air flow cavity communicates with the second air flow cavity and communicates with the outside through the second air flow cavity, so that the air flow in the first air flow cavity can be adjusted to blow directly out of the air flow outlet without being guided by the guiding part or to blow along the curved outer surface of the main body part after being guided by the guiding part, so that the hair care appliance can adsorb the hair to the curved outer surface of the main body part during use and improve the situation of hair flyaway. Description of the Drawings

[0032] The accompanying drawings here are incorporated into the specification and form a part of this disclosure. These drawings illustrate embodiments consistent with this disclosure and, together with the specification, are used to explain the technical solutions of this disclosure.

[0033] Figure 1 It is a schematic diagram of the Coanda effect generated when the water flow passes through the convex surface of the spoon.

[0034] Figure 2 It is a structural diagram of a hair care appliance shown in an exemplary embodiment of this disclosure.

[0035] Figure 3 It is a structural diagram of a guiding air nozzle shown in an exemplary embodiment of this disclosure.

[0036] Figure 4 It is another structural diagram of a guiding air nozzle shown in an exemplary embodiment of this disclosure.

[0037] Figure 5 It is Figure 3 the exploded view of the guiding air nozzle shown.

[0038] Figure 6 It is Figure 3 the transverse sectional view of the guiding air nozzle shown.

[0039] Figure 7 It is Figure 4 a transverse sectional view of the guiding air nozzle shown.

[0040] Figure 8 It is Figure 4 another transverse sectional view of the guiding air nozzle shown.

[0041] Figure 9 It is Figure 4 yet another transverse sectional view of the guiding air nozzle shown.

[0042] Figure 10 It is Figure 3 the longitudinal sectional view of the guiding air nozzle shown.

[0043] Figure 11 It is Figure 10 the enlarged view of part A in

[0044] Figure 12 It is a structural diagram of an air flow guiding assembly shown in an exemplary embodiment of this disclosure.

[0045] Figure 13 It is Figure 12 the top view of the air guiding vane in the air flow guiding assembly shown.

[0046] Explanation of reference numerals:

[0047] Hair care appliance 00;

[0048] Handle 1;

[0049] 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;

[0050] Deflector nozzle 2;

[0051] Main body portion 20; second housing 21, mounting groove 210, first air flow chamber 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 L1, second side L2, base 2312, buckle 2313, air guiding piece 232, first air guiding portion 2321, second air guiding portion 2322; guiding portion 30; second air flow chamber 301, first channel 3011, second channel 3012, first opening 302, second opening ¾; mounting member 31, first mounting member 311, second mounting member 312; guiding main body 32; protrusion 33; partition 34; limiting assembly 40; first limiting portion 41, bullet head 411, elastic member 412; second limiting portion 42, groove 420. Detailed implementation manner

[0052] 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 numbers in different drawings represent the same or similar elements.

[0053] 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.), then 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 this specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present disclosure are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.

[0054] An embodiment of the present disclosure provides a diversion air nozzle for 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 flow inlet and an air flow outlet that communicate 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 flow 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 flow outlet, the first air flow chamber communicates with the second air flow chamber and communicates with the outside through the second air flow chamber.

[0055] 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. The main body portion includes a first air flow chamber that communicates with the air flow inlet and the air flow 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 flow 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 communicates directly 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. Thus, the air flow in the first air flow chamber can be adjusted to blow directly out of the air flow 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.

[0056] Here, a physical concept needs to be introduced to explain the principle of the present disclosure. When a fluid, such as an air flow or a water flow, flows through a convex curved surface, the fluid has a tendency to deviate from its original flow direction and instead flow along the convex curved surface it flows through. This phenomenon is called the Coanda Effect, also known as the Coandă effect or the 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 flowing through the spoon, it changes to flow along the spoon, as Figure 1 shown, Figure 1 is a schematic diagram of the Coanda effect generated when the water flow flows through the convex surface of the spoon.

[0057] In the embodiments of the present disclosure, the main body portion has a curved outer surface. When the airflow in the first airflow 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 airflow 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. 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 are generated 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 and attached to the side close to the user's scalp under the action of this repulsive force and is located in the inner layer. In this way, the relatively easily flyaway short hair is located in the inner layer of the hair, and the relatively smooth long hair is located in the outer layer of the hair, thus improving the situation of hair flyaway.

[0058] In order 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.

[0059] The embodiments of the present disclosure provide 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.

[0060] 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 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 an electric motor and an impeller. When the electric 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 that optionally 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.

[0061] An embodiment of the present disclosure further 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.

[0062] 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.

[0063] 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 cavity 211 through the air inlet 212 and is discharged from the first air flow cavity 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 cavity 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).

[0064] 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.

[0065] 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 periphery 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 specific setting manner of the skirt 22 in the embodiments of the present disclosure is not limited.

[0066] 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.

[0067] Please refer to Figures 6 to 9 , Figure 6 is Figure 3 a transverse cross-sectional view of the flow guiding nozzle shown in Figure 7 is Figure 4 a transverse cross-sectional view of a flow guiding nozzle shown in Figure 8 is Figure 4 another transverse cross-sectional view of the flow guiding nozzle shown in Figure 9 is Figure 4 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 guided by the flow guiding part 30 and 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.

[0068] Wherein: The diversion main body 32 is arranged parallel to the air outlet 213, so that when the diversion part 30 rotates to this second state, the diversion main body 32 can cover the air outlet 213; the length of the diversion main body 32 is greater than the length of the air outlet 213, so that the length of the second air flow cavity 301 is greater than the length of the air outlet 213, so that when the diversion part 30 rotates to this second state, it is ensured that the air flow blown out from the air 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 outlet 213, the first opening 302 and the second opening 303 are also arranged parallel to the air outlet 213, and the lengths of the first opening 302 and the second opening 303 are not less than the length of the air outlet 213, so that when the diversion part 30 rotates to this second state, the air outlet area of the diversion nozzle 2 is prevented from decreasing, and it is ensured that the diversion nozzle 2 has a sufficiently large air outlet area.

[0069] 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 move 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.

[0070] 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 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 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 diversion main body 32.

[0071] When the diversion part 30 rotates to this second state, the diversion part 30 includes three preset positions: a first preset position, a second preset position, and a third preset position, as Figures 7 - 9 shown.

[0072] When the diversion 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 diversion part 30 for forming the first channel 3011 (that is, the part of the diversion 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 is blown out from the air flow outlet 213, it is guided by the diversion part 30 and is blown out from the first opening 302 along the outer surface of the main body part 20 in the first direction (for example, the clockwise direction);

[0073] When the diversion 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 diversion part 30 for forming the second channel 3012 (that is, the part of the diversion 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 is blown out from the air flow outlet 213, it is guided by the diversion part 30 and is blown out from the second opening 303 along the outer surface of the main body part 20 in the second direction (for example, the counterclockwise direction);

[0074] When the diversion 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 is blown out from the air flow outlet 213, it is guided by the diversion part 30. A part of it is blown out from the first opening 302 along the outer surface of the main body part 20 in the first direction, and at the same time, another part is blown out from the second opening 303 along the outer surface of the main body part 20 in the second direction.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 diversion air nozzle 2 may further include a limiting component 40, which is arranged between the diversion part 30 and the main body part 20 and is used to limit the diversion part 30 and the main body part 20 to each other when the diversion part 30 rotates relative to the main body part 20 to the first state or the second state.

[0079] The limiting component 40 may include a first limiting part 41 and a second limiting part 42, and the second limiting part 42 is adapted to the first limiting part 41. Among them, the first limiting part 41 is arranged on one of the diversion part 30 and the main body part 20, and the second limiting part 42 is arranged on the other of the diversion part 30 and the main body part 20. For example, the first limiting part 41 is arranged on the main body part 20, and the second limiting part 42 is arranged on the diversion part 30. When the diversion part 30 rotates relative to the main body part 20 to the first state or the second state, the first limiting part 41 cooperates with the second limiting part 42 to limit the diversion part 30 and the main body part 20 to each other.

[0080] In the first state, the diversion part 30 includes a preset position; in the second state, the diversion part 30 includes a plurality of preset positions. Assuming that the sum of the number of preset positions corresponding to the first state and the second state is the target number, then the number of at least one of the first limiting part 41 and the second limiting part 42 is the target number, so that when the diversion part 30 rotates to any preset position in the first state or the second state, at least one first limiting part 41 and at least one second limiting part 42 are in limiting cooperation, so as to ensure that when the diversion part 30 rotates to any preset position, the limiting component 40 can limit the diversion part 30 and the main body part 20 to each other. Taking the diversion part 30 in the first state including one preset position and the diversion part 30 in the second state including two preset positions as an example, the target number is three, and the number of at least one of the first limiting part 41 and the second limiting part 42 is three.

[0081] For example: the number of the first limiting parts 41 is one, and one first limiting part 41 is arranged on the main body part 20; the number of the second limiting parts 42 is three, and the three second limiting parts 42 are distributed at intervals along the circumference of the main body part 20 on the diversion part 30. When the diversion part 30 rotates to different preset positions, the same first limiting part 41 is in limiting cooperation with different second limiting parts 42.

[0082] Another example: the number of the first limiting parts 41 is three, and the three first limiting parts 41 are distributed at intervals along the circumference of the main body part 20 on the main body part 20; the number of the second limiting parts 42 is one, and one second limiting part 42 is arranged on the diversion part 30. When the diversion part 30 rotates to different preset positions, different first limiting parts 41 are in limiting cooperation with the same second limiting part 42.

[0083] For another example, the number of the first limiting parts 41 and the second limiting parts 42 is three. The three first limiting parts 41 and the three second limiting parts 42 are evenly spaced along the circumferential direction of the main body part 20 and are respectively distributed on the main body part 20 and the diversion part 30. When the diversion part 30 rotates to different preset positions, different first limiting parts 41 are in limiting cooperation with different second limiting parts 42.

[0084] Still for another example, the number of the first limiting parts 41 is three, and the three first limiting parts 41 are spaced along the circumferential direction of the main body part 20 and distributed on the main body part 20; the number of the second limiting parts 42 is multiple, and the multiple second limiting parts 42 are spaced along the circumferential direction of the main body part 20 and distributed on the diversion part 30... The number of the first limiting parts 41 and the second limiting parts 42 can have various combinations. The embodiments of the present disclosure do not limit the specific number of the first limiting parts 41 and the second limiting parts 42, and no further examples will be given here. It can be understood that in the above examples, the positions of the first limiting parts 41 and the second limiting parts 42 can be interchanged.

[0085] Please continue to refer to Figure 5 、 Figure 10 and Figure 11 . The first limiting part 41 includes a warhead 411 arranged on the main body part 20, and the second limiting part 42 is a groove 420 formed at the top of the diversion part 30 with the notch facing downward, and the groove 420 is adapted to the warhead 411. When the diversion part 30 rotates to the first state or the second state, the warhead 411 is partially clamped into the groove 420 to limit the diversion part 30 and the main body part 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 warheads 411 is one, and the number of the grooves 420 is three.

[0086] Specifically: an installation groove 210 with the notch facing upward is formed at the top of the second shell 21 of the main body part 20; the first limiting part 41 includes a warhead 411 and an elastic member 412, and the warhead 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, and 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 warhead 411; the installation member 31 of the diversion part 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 part 20 and covers the top surface of the main body part 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 part 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 part 20.

[0087] When the diversion part 30 rotates from one preset position to another preset position, the bullet head 411 is pressed by the first mounting member 311 and retracts into the mounting groove 210. At the same time, the bullet head 411 presses the elastic member 412 to make the elastic member 412 in a compressed state;

[0088] When the diversion part 30 rotates to any one of the preset positions, the bullet head 411 is opposite to a groove 420 in the length direction of the main body part 20. The bullet head 411 is pushed by the compressed elastic member 412 and protrudes out of the mounting groove 210 and partially snaps into the groove 420.

[0089] 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 bullet head 411 when the diversion part 30 rotates to squeeze the bullet head 411 out of the groove 420. Therefore, the inner wall of the groove 420 needs to be set smoothly, and the width of the groove 420 should gradually decrease from the notch of the groove 420 to the bottom of the groove 420.

[0090] In the diversion 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 separated from the outside and directly communicates with the outside and a second state in which 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 by arranging a limiting component 40 between the main body part 20 and the diversion part 30 to limit the diversion part 30 and the main body part 20 to each other when the diversion part 30 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 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 nozzle of the hair care appliance 00 can switch different air outlet modes.

[0091] The embodiment of the present disclosure also provides an air flow guiding assembly. Please refer to Figure 10 and Figure 12 , Figure 12This is a structural diagram of an air flow guiding assembly shown in an exemplary embodiment of the present disclosure. The air flow guiding assembly 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 assembly 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 assembly 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 assembly 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.

[0092] 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 used 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 assembly 23 and a second side edge L2 corresponding to the air outlet side F2 of the air flow guiding assembly 23. The base 2312 is connected to the first side edge L1 of the support sheet 2311. The base 2312 may be a hollow annular 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 used 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.

[0093] 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.

[0094] The air guiding vane 232 may include a first air guiding portion 2321 and a second air guiding portion 2322. The second air guiding portion 2322 is arranged near the air inlet side F1 of the air flow guiding assembly 23, and the second air guiding 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 conveying it to the first air guiding portion 2321. The first air guiding portion 2321 is arranged near the air outlet side F2 of the air flow guiding assembly 23, and the first air guiding portion 2321 is arranged flat for guiding the air flow conveyed by the second air guiding portion 2322 to the air outlet side F2. The first air guiding portion 2321 may be arranged 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 guiding portion 2321 may also not be arranged 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.

[0095] Wherein, in the length direction of the support member 231, one side edges of all the air guiding vanes 232 near the air outlet side F2 are flush, and one side edges near the air inlet side F1 are stepped. Specifically, the size of the air guiding vane 232 gradually increases in the direction away from the air inlet side F1, so that the size of the air guiding vane 232 closer to the air inlet side F1 is smaller, thereby preventing most of the air flow introduced from the air inlet side F1 from being captured and exported by the air guiding vane 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), and thus ensuring uniform air outlet at every place of the air outlet side F2 of the air flow guiding assembly 23, and also ensuring uniform air outlet at every place of the air outlet 213 of the diversion air nozzle 2.

[0096] Please refer to Figure 13 , Figure 13 is Figure 12 a top view of the air guiding vane in the air flow guiding assembly shown in. In the projection in the vertical direction, the air guiding vane 232 farthest from the air inlet side F1 has the largest size and covers all the other air guiding vanes 232. The first air guiding portions 2321 of all the air guiding 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 guiding portions 2321 are arc-shaped. 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 guiding 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 guiding 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 guiding 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 guiding portion 2321 abuts against the inner surface of the main body portion 20 everywhere.

[0097] 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 ascending order of 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.

[0098] 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 is separated into multiple portions by the plurality of air guiding vanes 232 during the process from the air inlet side F1 to away from the air inlet side F1 after entering 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.

[0099] 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 protection scope 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 protection scope of the present disclosure.

Claims

1. A diversion air nozzle, applied to a hair care appliance, characterized in that, Comprising: A main body portion including a first air flow chamber, an air flow inlet and an air flow outlet communicating with the first air flow chamber, and the main body portion has a curved outer surface; And A diversion portion 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 diversion portion and the main body portion; When the diversion portion rotates to the first state, the diversion portion does not cover the air flow outlet, the first air flow chamber is separated from the second air flow chamber and communicates with the outside respectively; When the diversion portion rotates to the second state, the diversion portion covers the air flow outlet, the first air flow chamber communicates with the second air flow chamber and communicates with the outside through the second air flow chamber.

2. The diversion air nozzle according to claim 1, wherein A protrusion is provided on the side of the diversion portion facing the main body portion, and the protrusion can extend or retract to approach or move away from the main body portion.

3. The flow guiding air nozzle according to claim 2, wherein, The part of the diversion portion for forming the second air flow chamber and the protrusion are both arranged parallel to the air flow outlet, and the length of the protrusion is not less than the length of the air flow outlet, and the length of the part of the diversion portion for forming the second air flow chamber is greater than the length of the air flow outlet.

4. The flow guiding air nozzle according to claim 3, characterized in that, First openings and second openings communicating with the second air flow chamber are respectively provided at both circumferential ends of the diversion portion, and the second air flow chamber communicates with the outside through the first openings and the second openings.

5. The diversion air nozzle according to claim 4, characterized in that, The protrusion has an extended state and a retracted state; When the protrusion is in the extended state, the protrusion abuts against the outer surface of the main body portion to divide the second air flow chamber into a first channel and a second channel, and the first channel and the second channel communicate with the outside through the first opening and the second opening respectively; When the protrusion is in the retracted state, the protrusion is separated from the outer surface of the main body portion to enable the first channel to communicate with the second channel.

6. The diversion air nozzle according to claim 5, characterized in that, The second state includes a first preset position; When the diversion portion is in the first preset position, the protrusion is in the extended state, and the part of the diversion portion for forming the first channel covers the air flow outlet, and the air flow outlet communicates with the first channel and communicates with the outside through the first opening.

7. The flow guiding air nozzle according to claim 5, characterized in that, The second state includes a second preset position; When the diversion portion is in the second preset position, the protrusion is in the extended state, and the part of the diversion portion for forming the second channel covers the air flow outlet, and the air flow outlet communicates with the second channel and communicates with the outside through the second opening.

8. The diversion air nozzle according to claim 5, characterized in that, The second state includes a third preset position; When the diversion portion is in the third preset position, the protrusion is in the retracted state, and the air flow outlet communicates with the second air flow chamber and communicates with the outside through the first opening and the second opening at the same time.

9. The wind guiding nozzle according to claim 4, characterized in that, Both the first opening and the second opening are arranged parallel to the air flow outlet, and the lengths of the first opening and the second opening are not less than the length of the air flow outlet.

10. The diversion air nozzle according to claim 2, characterized in that, The diversion portion is axially symmetrically arranged, and the protrusion is arranged at the axis of symmetry of the diversion portion.

11. The diversion air nozzle according to claim 1, characterized in that, The two ends of the flow guiding part in the circumferential direction are respectively provided with a first opening and a second opening communicating with the second air flow cavity, and the second air flow cavity communicates with the outside through the first opening and the second opening; the flow guiding part includes a plurality of partition plates, and the plurality of partition plates include a plurality of first partition plates arranged at intervals along the length direction of the first opening and a plurality of second partition plates arranged at intervals along the length direction of the second opening.

12. The flow guiding air nozzle according to claim 1, wherein The flow guiding part includes: mounting members, the number of the mounting members is two, and the two mounting members are rotatably sleeved on the outer surface of the main body part; and a flow guiding main body, the flow guiding main body is connected between the two mounting members and covers a part of the outer surface of the main body part to form the second air flow cavity between the flow guiding main body and the main body part.

13. The flow guiding air nozzle according to any one of claims 1-12, characterized in that, The air flow outlet is arranged parallel to the length direction of the main body part.

14. The flow guiding air nozzle according to any one of claims 1-12, characterized in that, The main body part is cylindrical, the air flow inlet is opened on the bottom surface of the main body part, and the air flow outlet is opened on the side surface of the main body part.

15. A hair care appliance, characterized in that, It includes a handle and the flow guiding nozzle according to any one of claims 1 to 14, and the handle is detachably connected to the main body part.

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