Air nozzle and hair care appliance

Abstract

The utility model relates to an air nozzle and a hair care appliance. The tuyere comprises a machine shell, air enters the tuyere through a first inlet of a first air duct and a second inlet of a second air duct and exits the tuyere through outlets of the first air duct and the second air duct, and a lining cover is further arranged in the machine shell. The switching piece is rotationally connected into the machine shell around an axis, and the switching piece is provided with a first rotating position, a second rotating position and a third rotating position relative to the lining cover; the first inlet is closed when the switching piece is at the first rotating position, and the second inlet is closed when the switching piece is at the second rotating position; and the operation assembly comprises an elastic piece, the elastic piece is used for always applying clockwise torque to the switching piece when the switching piece is located between the first rotating position and the third rotating position, and the elastic piece is further used for always applying anticlockwise torque to the switching piece when the switching piece is located between the second rotating position and the third rotating position. The air nozzle and the operation assembly of the hair care appliance are simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a nozzle and a hair care appliance. Background Art

[0002] Hair care appliances are usually used for drying hair or styling hair. With the continuous development of technology, hair care appliances with dual air ducts are now available on the market. Specifically, the hair care appliance may include a main body and a nozzle. The main body supplies air to the nozzle through an air inlet provided on the nozzle. The nozzle contains two independent air ducts, an operating component and a switching member. The operating component not only drives the switching member to switch between two working positions, but also needs to lock the switching member in two different working positions. When the switching member reaches the two working positions, the connection between the air inlet and the two air ducts can be opened respectively, thereby controlling the two independent air ducts to discharge air to the air outlet of the nozzle. However, in the hair care device of the prior art, there is a problem that the structure of the operating component is relatively complicated. Utility Model Content

[0003] Based on this, it is necessary to provide a nozzle and a hair care appliance with a relatively simple operating component structure.

[0004] A first aspect of an embodiment of the present application provides a nozzle, comprising:

[0005] A casing, wherein a first air duct and a second air duct are formed in the casing, air is taken in through a first inlet of the first air duct and a second inlet of the second air duct by an air nozzle, and air is discharged through outlets of the first air duct and the second air duct, and an inner lining cover is also provided in the casing;

[0006] The switching member is connected to the housing by rotation around an axis, and the switching member has a first rotation position, a second rotation position and a third rotation position between the first rotation position and the second rotation position relative to the inner lining cover; the switching member closes the first inlet when the switching member is in the first rotation position, and closes the second inlet when the switching member is in the second rotation position;

[0007] An operating assembly includes an elastic member, wherein the elastic member is respectively connected to the switching member and the lining cover;

[0008] The elastic member is used to always apply a clockwise torque to the switching member when the switching member is between the first rotation position and the third rotation position, and the elastic member is also used to always apply a counterclockwise torque to the switching member when the switching member is between the second rotation position and the third rotation position.

[0009] In one embodiment, the elastic member is a torsion spring, and the torsion spring includes a torsion spring body, a first connecting arm and a second connecting arm;

[0010] The first connecting arm is connected to the lining cover, and the second connecting arm is connected to the switching member.

[0011] In one embodiment, the first connecting arm and the second connecting arm extend from the end of the torsion spring body to the radial outside of the torsion spring body, and the first connecting arm and the second connecting arm have a preset angle.

[0012] In one embodiment, the switching member includes a switching shaft and a transmission disc connected to one end of the switching shaft, and the end of the switching shaft away from the transmission disc and the transmission disc are both connected to the inner wall of the housing for rotation around the axis;

[0013] The ends of the first connecting arm and the second connecting arm are respectively provided with a first mounting ring and a second mounting ring;

[0014] The lining cover and the transmission plate are arranged opposite to each other, and the surfaces opposite to each other are respectively provided with a first mounting column and a second mounting column, and the first mounting column and the second mounting column are respectively arranged at different positions in the radial direction of the switching shaft;

[0015] The first mounting ring is mounted on the first mounting post, and the second mounting ring is mounted on the second mounting post.

[0016] In one embodiment, a sliding groove is provided on the surface of the inner lining cover facing the transmission disk, and when the transmission disk rotates, the second mounting column slides in the sliding groove; the sliding groove has a first side groove wall and a second side groove wall arranged oppositely along the sliding direction; the first rotation position, the second rotation position, and the third rotation position of the switching member correspond to the first position, the second position, and the third position of the transmission disk respectively;

[0017] When the transmission disc rotates to the first position, the second mounting post abuts against the first side groove wall; when the transmission disc rotates to the second position, the second mounting post abuts against the second side groove wall.

[0018] In one embodiment, a first limiting portion and a second limiting portion are respectively provided on opposite surfaces of the lining cover and the transmission plate;

[0019] The number of the first limiting parts is two, and the number of the second limiting parts is one;

[0020] When the switching shaft rotates around the axis, the second limiting portion abuts against the two first limiting portions respectively;

[0021] When the second limiting portion abuts against one of the first limiting portions, the transmission plate is located at the first position; when the second limiting portion abuts against the other first limiting portion, the transmission plate is located at the second position.

[0022] In one embodiment, the switching member rotates counterclockwise or clockwise from the third rotation position to the first rotation position and the second rotation position respectively after rotating at the same angle relative to the lining cover.

[0023] In one embodiment, an air outlet and an air inlet are provided on the surface of the housing, the first outlet of the first air duct and the second outlet of the second air duct are both connected to the air outlet, and the first inlet of the first air duct and the second inlet of the second air duct are both arranged adjacent to the air inlet;

[0024] The widths of the first and second air ducts along the first direction are both greater than the opening size of the air inlet along the first direction, and the air inlet takes in air toward a position between two ends of at least one of the first inlet and the second inlet along the first direction.

[0025] In one embodiment, the first air duct includes a first main air duct and a first extended air duct connected to each other; the second air duct includes a second main air duct and a second extended air duct connected to each other;

[0026] The air nozzle also includes an air duct body arranged on the inner wall of the casing, the first main air duct and the second main air duct are layered and formed in the air duct body along the second direction, and the outlets of the first main air duct and the second main air duct form a first outlet and a second outlet respectively; the second direction is the air inlet direction of the air inlet;

[0027] A portion of the second main air duct close to its outlet is bent in a direction away from the first main air duct.

[0028] In one embodiment, there are multiple first main air ducts, and the multiple first main air ducts are arranged in a row along the first direction;

[0029] There are multiple second main air ducts, and the second main air ducts are arranged in a row along the first direction.

[0030] In one embodiment, the air inlet takes air into a central position of the first inlet and the second inlet along the first direction;

[0031] The opening area of ​​the entrance of each first main air duct is configured to gradually increase from the central position in the first direction to the two end positions in the first direction; and / or

[0032] The opening area of ​​the inlet of each second main air duct is configured to gradually increase in sequence from the central position in the first direction to the two end positions in the first direction.

[0033] In one embodiment, the air duct body includes a body and a wind shield;

[0034] Each first main air duct and each second main air duct are formed in the body, and a plurality of first air holes and a plurality of second air holes are opened on the wind shield;

[0035] The first air holes are connected to the first main air ducts one by one, and the first air holes form the entrances of the first main air ducts;

[0036] The second air holes are connected to the second main air ducts in a one-to-one correspondence, and the second air holes form the entrances of the second main air ducts.

[0037] In one embodiment, the inner wall of the housing is provided with two baffles, and the two baffles are arranged opposite to each other along the second direction;

[0038] The two blocking bars are both arranged on a side of the air duct body away from the air outlet so as to fix the air duct body in the casing.

[0039] In one embodiment, the air outlet includes a first sub-air outlet and a second sub-air outlet, the first sub-air outlet is connected to the outlet of each first main air duct, and the second sub-air outlet is connected to the outlet of each second main air duct;

[0040] The first sub-air outlet and the second sub-air outlet both extend along the first direction, and the first sub-air outlet and the second sub-air outlet are spaced apart from each other along the second direction.

[0041] In one embodiment, the switching member includes a switching shaft and a switching plate connected to the circumferential surface of the switching shaft; the switching shaft is connected to the inner wall of the housing by rotating around the axis;

[0042] A partition is also provided on the surface of the air duct body, the partition is located between the inlet of the first main air duct and the inlet of the second main air duct, and abuts against the circumferential surface of the switching shaft;

[0043] The air duct body, the switching shaft and the inner wall of the casing jointly define an annular channel. In the annular channel, at least a portion of the channel section between one surface of the partition and the air inlet forms a first extended air duct; at least a portion of the channel section between the other surface of the partition and the air inlet forms a second extended air duct.

[0044] In one embodiment, the inner wall of the housing is provided with a first stop wall, and the air duct body is provided with a second stop wall; the air inlet is located between the first stop wall and the second stop wall; the first stop wall defines a first inlet, and the second stop wall defines a second inlet;

[0045] When the switching plate rotates around the axis, it abuts against the first stop wall and the second stop wall respectively; when the switching plate abuts against the first stop wall, the first entrance is closed; when the switching plate abuts against the second stop wall, the second entrance is closed.

[0046] In one embodiment, the air inlet and the switching shaft are arranged at intervals along the second direction, and the air inlet and the switching shaft are located on the same side of the air duct body, and the distance between the air inlet and the entrance of the second main air duct is smaller than the distance between the air inlet and the entrance of the first main air duct.

[0047] In one of the embodiments, a gasket is provided at the end of the partition plate, and the contour shape of the surface of the gasket facing the switching shaft matches the outer peripheral surface of the switching shaft.

[0048] In one of the embodiments, the inner wall of the housing is further provided with a first mounting groove, and at least a portion of the structure of the partition is inserted and installed in the first mounting groove.

[0049] In one embodiment, the housing includes a first side wall and a second side wall that are arranged opposite to each other along a first direction; the first end of the switching shaft is rotatably connected to the first side wall, and the second end of the switching shaft is rotatably connected to the second side wall.

[0050] In one embodiment, the first side wall is provided with a second mounting groove, and the inner groove wall of the second mounting groove is provided with a plurality of protruding ribs, and the plurality of protruding ribs form a circle around the axis;

[0051] The first end of the switching shaft is inserted into the second mounting groove and abuts against each protruding rib respectively.

[0052] In one embodiment, a portion of the second mounting groove is provided with an escape opening for avoiding the rotation of the switching plate;

[0053] When the switching plate abuts against the first stop wall, the switching plate abuts against an edge of the avoidance opening;

[0054] When the switching plate abuts against the second stop wall, the switching plate abuts against the other edge of the avoidance opening.

[0055] In one embodiment, the air nozzle further includes an operating assembly, the operating assembly includes a knob, the switching member further includes a transmission disk, the transmission disk is connected to the second end of the switching shaft, and the transmission disk is rotatably connected to the second side wall, so that the other end of the switching shaft is rotatably connected to the second side wall;

[0056] A first matching portion is provided on the side of the transmission disc away from the switching shaft, and the first matching portion penetrates the second side wall and extends out of the casing; the knob is located outside the casing and connected to the first matching portion of the transmission disc.

[0057] In one of the embodiments, a second matching portion is provided on a surface of the knob facing the transmission disk, a groove is provided on a top surface of the second matching portion, and the first matching portion is sleeved in the groove.

[0058] In one of the embodiments, an opening is provided on the knob to expose a portion of the structure of the transmission disk, and the operating assembly further comprises a knob cover, which is clamped on the knob and blocks the opening.

[0059] In one embodiment, a step portion is formed on the circumferential surface of the transmission disc, and a mounting hole is formed on the second side wall. The edge of the mounting hole is snapped onto the step portion so that the transmission disc is rotatably connected to the second side wall.

[0060] A second aspect of the embodiments of the present application provides a hair care device, comprising the above-mentioned nozzle.

[0061] Beneficial effects of the air nozzle and hair care appliance of the present application:

[0062] During switching, when the switching member is located between the first rotation position and the third rotation position, the switching member will switch to the first rotation position under the clockwise torque of the elastic member, closing the first entrance. Similarly, when the switching member is located between the second rotation position and the third rotation position, the switching member will switch to the second rotation position under the counterclockwise torque of the elastic member, closing the second entrance. The switching and locking of the switching member between the first rotation position and the second rotation position can be completed only by the elastic member, with a simple structure and relatively simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 A schematic diagram of the structure of the air nozzle provided in the embodiment of the present application;

[0064] Figure 2 A schematic diagram of the internal structure of the air nozzle provided in an embodiment of the present application;

[0065] Figure 3 A schematic diagram of the structure of the air nozzle provided in an embodiment of the present application in a flattened state;

[0066] Figure 4 A schematic diagram of the structure of the air nozzle in the direct blowing state provided in an embodiment of the present application;

[0067] Figure 5 A schematic diagram of the structure of the air duct body in the air nozzle provided in the embodiment of the present application;

[0068] Figure 6 A schematic diagram of the exploded structure of the switch shaft and the housing mounting structure in the air nozzle provided in an embodiment of the present application;

[0069] Figure 7 A schematic diagram of the exploded structure of the air nozzle provided in the embodiment of the present application;

[0070] Figure 8 A schematic diagram of the structure of the operating assembly of the air nozzle in the flattened state provided in an embodiment of the present application;

[0071] Fig. 9 A schematic diagram of the structure of the operating assembly of the air nozzle in the straight blowing state provided in an embodiment of the present application;

[0072] Fig.10 A schematic structural diagram of the cooperation between the lining cover and the transmission plate in the air nozzle provided in an embodiment of the present application.

[0073] Description of Figure Numbers:

[0074] 100. Wind nozzle;

[0075] 10. Casing; 101. Main body; 11. Air outlet; 111. First sub-air outlet; 112. Second sub-air outlet; 12. Air inlet; 13. First stop wall; 14. Stop bar; 15. First side wall; 151. Second mounting groove; 1501. Decorative cover; 1511. Avoidance opening; 152. Protruding rib; 16. Second side wall; 161. Mounting hole; 17. Lining cover; 171. First mounting column; 172. First limiting part; 20. First air duct; 21. First outlet; 22. First inlet; 23. First main air duct; 231. Inlet of first main air duct; 24. First extended air duct; 30. Second air duct; 31. Second outlet; 32. Second inlet; 33. Second main air duct; 331. Inlet of second main air duct; 34. Second extended air duct;

[0076] 40. air duct body; 41. body; 42. wind shield; 421. first air hole; 422. second air hole; 43. partition; 431. gasket; 44. second stop wall; 50. switching member; 51. switching shaft; 52. switching plate; 53. transmission plate; 531. first matching portion; 5311. groove; 532. step portion; 533. second mounting column; 534. sliding groove; 5341. first side groove wall; 5342. second side groove wall; 535. second limiting portion; 60. operating assembly; 61. knob; 611. second matching portion; 612. opening; 62. knob cover; 80. elastic member; 801. torsion spring body; 81. first connecting arm; 811. first mounting ring; 82. second connecting arm; 821. second mounting ring; 90. sealing ring;

[0077] F, first direction; S, second direction; H, annular channel. DETAILED DESCRIPTION

[0078] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0079] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0080] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0081] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0083] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0084] The nozzle and hair care appliance according to the embodiment of the present application are described below with reference to the accompanying drawings.

[0085] Figure 1 A schematic diagram of the structure of the air nozzle provided in the embodiment of the present application; Figure 2 A schematic diagram of the internal structure of the air nozzle provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of the air nozzle provided in an embodiment of the present application in a flattened state; Figure 4 This is a schematic diagram of the structure of the air nozzle in the direct blowing state provided in an embodiment of the present application.

[0086] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 The air nozzle provided in the embodiment of the present application includes a housing 10 and a switching member 50 .

[0087] An air outlet 11 and an air inlet 12 are provided on the surface of the housing 10, and a first air duct 20 and a second air duct 30 are formed in the housing 10. The first outlet 21 of the first air duct 20 and the second outlet 31 of the second air duct 30 are both connected to the air outlet 11, and the first inlet 22 of the first air duct 20 and the second inlet 32 ​​of the second air duct 30 are both arranged adjacent to the air inlet 12. The switching member 50 is rotatably connected to the housing 10 around an axis, and the switching member 50 is configured to selectively close the first inlet 22 and the second inlet 32 ​​when rotating.

[0088] The width dimensions of the first air duct 20 and the second air duct 30 along the first direction F are both greater than the opening dimension of the air inlet 12 along the first direction F, and the air inlet 12 enters air into a position between the two ends of at least one of the first inlet 22 and the second inlet 32 ​​along the first direction F. Here, the width dimension of the first air duct 20 along the first direction F may be, for example, the width dimension of the part of the air duct section in the first air duct 20 that is adjacent to the first inlet 22 along the first direction F. The width dimension of the second air duct 30 along the first direction F refers to the width dimension of the part of the air duct section in the second air duct 30 that is adjacent to the second inlet 32 ​​along the first direction F.

[0089] In the embodiment of the present application, the first inlet 22 , the second inlet 32 ​​and the air inlet 12 are arranged adjacent to each other, and all have a certain size in the first direction F. The first direction F may be parallel to the rotation axis of the switching member 50 , for example. Exemplarily, the first inlet 22 and the second inlet 22 may also be long strip-shaped inlets extending along the rotation axis of the switching member 50 .

[0090] In addition, for the convenience of explanation, the air inlet direction of the air inlet 12 is defined as the second direction S, and the second direction S is also the height direction of the air duct body 40 .

[0091] By arranging the first air duct 20, the second air duct 30 and the switching member 50 in the housing 10, the switching member 50 is connected to the housing 10 by rotating around an axis, and the switching member 50 is configured to selectively close the first inlet 22 and the second inlet 32 ​​when rotating. As long as the switching member 50 is rotated to close the first inlet 22, the wind from the air inlet 12 can enter the second air duct 30 through the second inlet 32 ​​and flow out through the second outlet 31 and the air outlet 11. And as long as the switching member 50 is rotated to close the second inlet 32, the wind from the air inlet 12 can enter the first air duct 20 through the first inlet 22 and flow out through the first outlet 21 and the air outlet 11, so that the switching of the two air ducts can be realized with a relatively simple switching structure.

[0092] Since the width dimensions of the first air duct 20 and the second air duct 30 along the first direction F are both larger than the opening dimension of the air inlet 12 along the first direction F, in other words, the opening dimensions of the first inlet 22 and the second inlet 32 ​​along the first direction F are both larger than the opening dimension of the air inlet 12 along the first direction F, when the air inlet 12 takes in air toward the end position of the first inlet 22 or the second inlet 32 ​​in the first direction F, taking the air inlet position of the air inlet 12 at the end position of the first inlet 22 as an example, due to wind resistance, the air intake at the position farther away from the end position in the first inlet 22 will gradually decay, which also causes the air volume along the first direction F in the first outlet 21 to be very uneven.

[0093] In the present application, the air inlet 12 takes in air from the position between the two ends of at least one of the first inlet 22 and the second inlet 32 ​​along the first direction F. Compared with the case where the air inlet position is at any end along the first direction F (the end includes at least one of the upper, lower, front, rear, side and / or circumferential surface of any end along the first direction F), the distance between the air inlet position and the two ends of the first inlet 22 is reduced. From the air inlet position to the positions of the two ends of the first inlet 22, the attenuation of the air intake is not as large as when the air inlet 12 is at the end. In other words, compared with the case where the air inlet position is located between the two ends and at any end, the air intake from the first inlet 22 is relatively uniform in the first direction F, so that the uniformity of the air intake in the first outlet 21 along the first direction F is improved to a certain extent. The case where the air inlet 12 takes in air from the position between the two ends of the second inlet 32 ​​along the first direction F is similar to this and will not be repeated here.

[0094] In the embodiment of the present application, the first air duct 20 includes a first main air duct 23 and a first extended air duct 24 that are connected to each other; the second air duct 30 includes a second main air duct 33 and a second extended air duct 34 that are connected to each other.

[0095] The air nozzle 100 further includes an air duct body 40 disposed on the inner wall of the housing 10, wherein the first main air duct 23 and the second main air duct 33 are formed in layers in the air duct body 40 along the second direction S, and the outlets of the first main air duct 23 and the second main air duct 33 form the first outlet 21 and the second outlet 31 respectively. The first direction F is perpendicular to the second direction S. A portion of the channel section of the second main air duct 33 close to its outlet is bent in a direction away from the first main air duct 23.

[0096] In this way, by forming the first main air duct 23 and the second main air duct 33 of the first air duct 20 and the second air duct 30 near the air outlet 11 in one air duct body 40, it is convenient to flexibly set the shapes of the first main air duct 23 and the second main air duct 33 according to the actual use function. The partial channel section of the second main air duct 33 near its own outlet is bent in the direction away from the first main air duct 23, so that the wind blown out of the second main air duct 33 has a smoothing effect. Of course, the partial channel section of the first main air duct 23 near its own outlet is set as a straight section, and the wind blown out of the first main air duct 23 can have a straight blowing effect.

[0097] It is understandable that in some other embodiments, the partial channel section of the first main air duct 23 near its outlet may be bent in a direction away from the second main air duct 33, so that the wind blown out of the first main air duct 23 has a smoothing effect. Of course, the partial channel section of the second main air duct 33 near its outlet is set as a straight section, and the wind blown out of the second main air duct 33 can have a straight blowing effect.

[0098] In the embodiment of the present application, there are multiple first main air ducts 23, and the multiple first main air ducts 23 are arranged in a row along the first direction F. There are multiple second main air ducts 33, and the second main air ducts 33 are arranged in a row along the first direction F.

[0099] With such an arrangement, when the air intake volume is the same, the wind flow rate in each main air duct can be faster and more uniform, thereby enhancing the blowing effect.

[0100] In the present application, refer to Figure 2 The air inlet 12 takes air into the central position along the first direction F between the first inlet 22 and the second inlet 32 ​​.

[0101] Figure 5 This is a schematic diagram of the structure of the air duct body in the air nozzle provided in an embodiment of the present application.

[0102] Reference Figure 5 The opening area of ​​the inlet 231 of each first main air duct is configured to gradually increase in sequence from the central position in the first direction F to the two end positions in the first direction F.

[0103] Furthermore, the opening area of ​​the inlet 331 of each second main air duct is configured to gradually increase in sequence from the central position in the first direction F to the positions at both ends of the first direction F.

[0104] Similar to the above, the farther away from the central position, the greater the wind resistance and the smaller the air intake. By setting as above, the attenuation of the air intake near the end of the air duct body 40 can be compensated, so that the air intake in the entire area of ​​the first direction F is more balanced.

[0105] In a specific implementation, the opening size of the inlet 231 of each first main air duct along the first direction F is configured to gradually increase from the central position in the first direction F to the two end positions in the first direction F.

[0106] Furthermore, the opening size of the inlet 331 of each second main air duct along the first direction F is configured to gradually increase in sequence from the central position in the first direction F to the positions at both ends of the first direction F.

[0107] In some embodiments, the opening size of the inlet 231 of each first main air duct along the second direction S is configured to gradually increase from the central position of the first direction F to the two end positions of the first direction F. In some embodiments, the second direction S is perpendicular to the first direction, and the second direction S is also the height direction of the air duct body 40.

[0108] Furthermore, the opening size of the inlet 331 of each second main air duct along the second direction S is configured to gradually increase in sequence from the central position in the first direction F to the positions at both ends of the first direction F.

[0109] In the embodiment of the present application, the air duct body 40 includes a body 41 and a wind shield 42;

[0110] Each first main air duct 23 and each second main air duct 33 are formed in the body 41 , and a plurality of first air holes 421 and a plurality of second air holes 422 are formed on the wind shield plate 42 .

[0111] The first air holes 421 are connected to the first main air ducts 23 in one-to-one correspondence, forming the inlet 231 of the first main air duct. The second air holes 422 are connected to the second main air ducts 33 in one-to-one correspondence, forming the inlet 331 of the second main air duct.

[0112] In this way, when the sizes of the inlets 231 of the first main air ducts are different, the channel sizes of the first main air ducts 23 can be the same, and the sizes of the first air holes 421 on the wind shield 42 only need to be set to be different. Similarly, when the sizes of the inlets 231 of the first main air ducts are different, the channel sizes of the second main air ducts 33 can be the same, and the sizes of the second air holes 422 on the wind shield 42 only need to be set to be different. This can simplify the processing process of the main body.

[0113] In the present application, refer to Figure 2 and Figure 3 Two blocking bars 14 are disposed on the inner wall of the housing 10 , and the two blocking bars 14 are disposed opposite to each other along the second direction S.

[0114] The two blocking bars 14 are both disposed on a side of the air duct body 40 away from the air outlet 11 , so as to fix the air duct body 40 in the housing 10 .

[0115] In this way, the air duct body 40 can be fixed with a simple structure. The air duct body 40 can extend along the first direction F.

[0116] Continue to refer to Figure 1 The air outlet 11 includes a first sub-air outlet 111 and a second sub-air outlet 112. The first sub-air outlet 111 is connected to the outlet of each first main air duct 23, and the second sub-air outlet 112 is connected to the outlet of each second main air duct 33. In other words, the first sub-air outlet 111 is arranged corresponding to the first main air duct 23, and the second sub-air outlet 112 is arranged corresponding to the second main air duct 33. The first sub-air outlet 111 and the second sub-air outlet 112 both extend along the first direction F, and the first sub-air outlet 111 and the second sub-air outlet 112 are arranged at intervals along the second direction S.

[0117] In the present application, refer to Figure 3 , Figure 5 and Figure 6The switching member 50 includes a switching shaft 51 and a switching plate 52 connected to the circumferential surface of the switching shaft 51. The switching shaft 51 is connected to the inner wall of the housing 10 for rotation around the above-mentioned axis.

[0118] A partition plate 43 is further provided on the surface of the air duct body 40 . The partition plate 43 is located between the inlet 231 of the first main air duct and the inlet 331 of the second main air duct and abuts against the circumferential surface of the switching shaft 51 .

[0119] The air duct body 40, the switching shaft 51 and the inner wall of the housing 10 together define an annular channel H. In the annular channel H, a surface of the partition plate 43 (eg Figure 3 At least part of the passage section between the middle and upper surface of the partition plate 43 and the air inlet 12 forms a first extended air duct 24. Figure 3 At least a portion of the channel section between the middle and lower surface) and the air inlet 12 forms a second extended air duct 34.

[0120] In this arrangement, a portion of the annular channel H defined in the casing 10 by the switching shaft 51 and the partition 43 is cut out to serve as the first extended air duct 24 and the second extended air duct 34, respectively, and there is no need to provide a component with an internal channel (such as the air duct body 40) in the casing 10, thereby making the structure inside the casing 10 more compact and the number of parts and components less.

[0121] The partition plate 43 can be fixed on the wind shield plate 42 of the air duct body 40, or the partition plate 43 and the wind shield plate 42 can be formed integrally. Specifically, the partition plate 43 is fixed or formed on the side of the wind shield plate 42 away from the body 41, and extends toward the switching shaft 51. The end of the partition plate 43 close to the switching shaft 51 is designed to fit the circumferential surface of the switching shaft 51 and adapt to the rotation of the switching member 50.

[0122] In a specific implementation, for example, a gasket 431 may be provided at the end of the partition plate 43 , and the contour shape of the surface of the gasket 431 facing the switching shaft 51 matches the outer peripheral surface of the switching shaft 51 .

[0123] In this way, when the partition plate 43 abuts against the switching shaft 51, the rotation of the switching shaft 51 will not be hindered or affected, and the sealing between the first extension channel and the second extension channel will be increased. Of course, the gasket 431 is set to a suitable size to meet the smooth rotation of the switching member 50.

[0124] Continue to refer to Figure 2 , Figure 3 The inner wall of the housing 10 is provided with a first stop wall 13, the air duct body 40 is provided with a second stop wall 44, and the air inlet 12 is located between the first stop wall 13 and the second stop wall 44. The first stop wall 13 defines a first inlet 22, and the second stop wall 44 defines a second inlet 32.

[0125] As mentioned above, the air duct body 40, the switching shaft 51 and the inner wall of the housing 10 together define an annular channel H. In the annular channel H, part of the channel section serves as the first extended air duct 24, and part of the channel section serves as the second extended air duct 34. In the annular channel H, a surface (e.g. Figure 3 The first extended air duct 24 is formed by a portion of the passage section between the middle and upper surface of the partition plate 43 and the first stop wall 13. Figure 3 At least part of the passage section between the first stop wall 13 and the second stop wall 44 forms the second extended air duct 34. The part formed between the first stop wall 13 and the second stop wall 44 is connected to the air inlet 12. In other words, the air entering through the air inlet 12 passes through the area between the first stop wall 13 and the second stop wall 44, and then enters the first inlet 22 and the second inlet 32.

[0126] When the switching plate 52 rotates around the axis, it abuts against the first stop wall 13 and the second stop wall 44. When the switching plate 52 abuts against the first stop wall 13, the first inlet 22 is closed. When the switching plate 52 abuts against the second stop wall 44, the second inlet 32 ​​is closed.

[0127] Since the air inlet 12 is located between the first stop wall 13 and the second stop wall 44, the first stop wall 13 is located in the channel section between one surface of the partition 43 and the air inlet 12, and the second stop wall 44 is located in the channel section between the other surface of the partition 43 and the air inlet 12. The switching plate 52 cooperates with the first stop wall 13 and the second stop wall 44 to form a first inlet 22 in the first stop wall 13 and a second inlet 32 ​​in the second stop wall 44.

[0128] In the present application, refer to Figure 2 The air inlet 12 is opened on the bottom wall of the casing 10, and the switching shaft 51 is arranged inside the casing 10 at a position with a certain distance from the bottom wall of the casing 10, so that the air inlet 12 and the switching shaft 51 are arranged at intervals along the second direction S, and the air inlet 12 and the switching shaft 51 are both located on the same side of the air duct body 40, and the distance between the air inlet 12 and the entrance 331 of the second main air duct is smaller than the distance between the air inlet 12 and the entrance 231 of the first main air duct.

[0129] With this arrangement, the air from the air inlet 12 can directly enter the inlet 331 of the second main air duct when the second inlet 32 ​​is opened. The first extended air duct 24 is formed into a bent shape, so that the first inlet 22 and the second inlet 32 ​​can be arranged relative to each other.

[0130] Figure 6 This is a schematic diagram of the exploded structure of the switching shaft and casing mounting structure in the air nozzle provided in an embodiment of the present application.

[0131] In the present application, refer to Figure 6 The inner wall of the housing 10 is further provided with a first mounting groove 5311, and at least a part of the structure of the partition 43 is inserted and installed in the first mounting groove 5311. In this way, the first mounting groove 5311 can assist in positioning the partition 43.

[0132] In the present application embodiment, combined Figure 1 and Figure 6 The housing 10 includes a first side wall 15 and a second side wall 16 that are arranged opposite to each other along a first direction F; a first end of the switch shaft 51 is rotatably connected to the first side wall 15, and a second end of the switch shaft 51 is rotatably connected to the second side wall 16. In this way, the switch shaft 51 can be mounted inside the housing 10 along the first direction F.

[0133] In the embodiment of the present application, the first side wall 15 is provided with a second mounting groove 151, and the inner groove wall of the second mounting groove 151 is provided with a plurality of protruding ribs 152, and the plurality of protruding ribs 152 are arranged in a circle around the above-mentioned axis. One end of the switching shaft 51, that is, the first end of the switching shaft 51 is inserted into the second mounting groove 151 and abuts against each protruding rib 152 respectively. In this way, each protruding rib 152 finally supports the first end of the switching shaft 51. When the switching shaft 51 rotates relative to the first side wall 15, the contact area is reduced and the friction force is reduced.

[0134] In the embodiment of the present application, a portion of the second mounting groove 151 is provided with an escape opening 1511 for avoiding the rotation of the switch plate 52. When the switch plate 52 abuts against the first stop wall 13, the switch plate 52 abuts against one edge of the escape opening 1511. When the switch plate 52 abuts against the second stop wall 44, the switch plate 52 abuts against the other edge of the escape opening 1511. In this way, the two edges of the escape opening 1511 can limit the movement of the switch plate 52.

[0135] Figure 7 This is a schematic diagram of the exploded structure of the air nozzle provided in an embodiment of the present application.

[0136] In the present application, refer to Figure 7 A decorative cover 1501 is also installed on the side of the first side wall 15 away from the second side wall 16. In order to facilitate observation of the internal structure, part of the structure of the housing 10 is hidden, leaving only the second side wall 16. The air nozzle 100 also includes an operating assembly 60, which includes a knob 61. The switching member 50 also includes a transmission disk 53, which is connected to the other end of the switching shaft 51, that is, the second end of the switching shaft 51. The transmission disk 53 is rotatably connected to the second side wall 16, so that the other end of the switching shaft 51 is rotatably connected to the second side wall 16.

[0137] A first matching portion 531 is provided on the side of the transmission plate 53 away from the switching shaft 51. The first matching portion 531 passes through the second side wall 16 and extends out of the housing 10. For example, a mounting hole 161 can be provided on the second side wall 16 for the first matching portion 531 to pass through. The knob 61 is located outside the housing 10 and connected to the first matching portion 531 of the transmission plate 53.

[0138] In this way, by rotating the operating knob 61 , the transmission plate 53 and the switching shaft 51 can be driven to rotate together.

[0139] In the present application, continue to refer to Figure 7 , flip the knob 61 to the other side to expose it, as shown by the black arrow, the surface of the knob 61 facing the transmission disk 53 is provided with a second matching portion 611, the top surface of the second matching portion 611 is provided with a groove 5311, and the first matching portion 531 is sleeved in this groove 5311.

[0140] In a specific implementation, the number of the second matching parts 611 and the first matching parts 531 are both multiple and arranged in one-to-one correspondence. For example, the number of the first matching parts 531 and the second matching parts 611 can be 4. The knob 61 can be engaged with the transmission plate 53 by snapping, so that it can rotate relative to the second side wall 16.

[0141] In the embodiment of the present application, an opening 612 is provided on the knob 61 to expose a portion of the structure of the transmission disk 53 . The operating assembly 60 further includes a knob cover 62 , which is snap-connected to the knob 61 and blocks the opening 612 .

[0142] In the embodiment of the present application, a step portion 532 is formed on the circumferential surface of the transmission disk 53, and a mounting hole 161 is formed on the second side wall 16. An annular protrusion is protruded from the inner edge of the mounting hole 161, and the protrusion abuts against the step portion 532 to enable the transmission disk 53 to be rotatably connected to the second side wall 16.

[0143] This arrangement facilitates the positioning of the switch shaft 51 and the second side wall 16 along the axial direction of the switch shaft 51. In addition, the second side wall 16 can be formed separately from the main body 101 of the housing 10, and in this case, the second side wall 16 can be snap-fitted to the main body 101 of the housing 10.

[0144] Combination Figure 1 , Figure 6 and Figure 7 As mentioned above, the housing 10 may include a main body 101, a first side wall 15 and a second side wall 16. The main body 101 is constructed as a hollow member with two ends open. The first side wall 15 and the second side wall 16 are respectively connected to two sides of the main body 101 along the first direction F. The end of the first side wall 15 away from the second side wall 16 is connected to a decorative cover 1501.

[0145] Figure 8This is a schematic diagram of the structure of the operating components of the air nozzle in the flat state provided by the embodiment of the present application, Fig. 9 This is a schematic diagram of the structure of the operating components of the air nozzle in the direct blowing state provided in an embodiment of the present application.

[0146] Figure 8 Status and Figure 3 Correspondingly, Fig. 9 Status and Figure 4 For easy observation, Figure 8 and Fig. 9 The middle transmission plates 53 all move a certain distance along the axial direction of the switching shaft 51 in a direction away from the inner lining cover 17 .

[0147] In the present application embodiment, combined Figure 3 , Figure 4 , Figure 8 , Fig. 9 The casing 10 further includes an inner lining cover 17 , which is connected to the inside of the casing 10 , and the switching shaft 51 passes through the inner lining cover 17 , and the inner lining cover 17 is also arranged opposite to the transmission plate 53 .

[0148] The transmission plate 53 drives the switching shaft 51 to rotate, and the rotation position of the transmission plate 53 relative to the liner cover 17 is as follows: Figure 3 ,like Figure 8 The first position shown, Figure 4 , Fig. 9 The second position and the third position shown in the figure, the transmission plate 53 rotates to the first position and the second position respectively after rotating a certain angle counterclockwise or clockwise from the third position relative to the inner lining cover 17. Of course, the third position can be a central position between the first position and the second position, that is, the transmission plate 53 rotates to the first position and the second position respectively after rotating the same angle counterclockwise or clockwise from the third position relative to the inner lining cover 17.

[0149] When the transmission disc 53 is at the first position, the switching plate 52 closes the first inlet 22 , and when the transmission disc 53 rotates to the second position, the switching plate 52 closes the second inlet 32 ​​.

[0150] The operating assembly 60 also includes an elastic member 80, which is respectively connected to the transmission disk 53 and the lining cover 17. The elastic member 80 is used to always apply a clockwise torque to the rotating disk when the transmission disk 53 is between the first position and the third position. The elastic member 80 is also used to always apply a counterclockwise torque to the rotating disk when the transmission disk 53 is between the second position and the third position.

[0151] With such a configuration, during switching, when the operator manually operates the knob 61 to rotate the transmission disc 53, if the rotating disc is between the first position and the third position, if the operator does not operate the knob 61, the transmission disc 53 will switch to the first position under the clockwise torque of the elastic member 80, and since the switching plate 52 is blocked on the first stop wall 13 at this time, even if the operator does not operate it, the transmission disc 53 will always stop at the first position under the clockwise torque, and keep the first inlet 22 closed. Similarly, when the operator manually operates the knob 61 to rotate the transmission disc 53, if the rotating disc is between the second position and the third position, if the operator does not operate the knob 61, the transmission disc 53 will switch to the second position under the counterclockwise torque of the elastic member 80, and since the switching plate 52 is blocked on the second stop wall 44 at this time, even if the operator does not operate it, the transmission disc 53 will always stop at the second position under the counterclockwise torque, and keep the second inlet 32 ​​closed.

[0152] In the embodiment of the present application, when the action of the transmission disk 43 is derived to the switching member 50, the switching member 50 has a first rotation position, a second rotation position, and a third rotation position between the first rotation position and the second rotation position relative to the inner lining cover 17. The first rotation position of the switching member 50 corresponds to the first position of the transmission disk 53, the second rotation position of the switching member 50 corresponds to the second position of the transmission disk 53, and the third rotation position of the switching member 50 corresponds to the third position of the transmission disk 53.

[0153] On this basis, the switching element 50 closes the first inlet 22 when it is in the first rotational position, and the switching element 50 closes the second inlet 32 ​​when it is in the second rotational position.

[0154] The elastic member 80 is used to always apply a clockwise torque to the switching member 50 when the switching member 50 is between the first rotation position and the third rotation position. The elastic member 80 is also used to always apply a counterclockwise torque to the switching member 50 when the switching member 50 is between the second rotation position and the third rotation position.

[0155] With such a configuration, during switching, when the switching member 50 is located between the first rotation position and the third rotation position, the switching member 50 will switch to the first rotation position under the clockwise torque of the elastic member 80, closing the first inlet 22. Similarly, when the switching member 50 is located between the second rotation position and the third rotation position, the switching member 50 will switch to the second rotation position under the counterclockwise torque of the elastic member 80, closing the second inlet 32. The switching and locking of the switching member 50 between the first rotation position and the second rotation position can be completed only by the elastic member 80, with a simple structure and relatively simple operation.

[0156] In the present application, refer to Fig. 9 The elastic member 80 is a torsion spring, which includes a torsion spring body 801 , a first connecting arm 81 and a second connecting arm 82 .

[0157] The first connecting arm 81 and the second connecting arm 82 extend radially outward from the end of the torsion spring body 801 and have a preset angle. The first connecting arm 81 is connected to the inner liner cover 17 , and the second connecting arm 82 is connected to the transmission plate 53 .

[0158] In this way, the elastic member 80 can apply an elastic force to the transmission disk 53 toward the first position when the transmission disk 53 is between the first position and the third position, and can apply an elastic force to the transmission disk 53 toward the second position when the transmission disk 53 is between the second position and the third position.

[0159] In the present application, continue to refer to Fig. 9 The ends of the first connecting arm 81 and the second connecting arm 82 are respectively provided with a first mounting ring 811 and a second mounting ring 821. The surfaces of the inner lining cover 17 and the transmission plate 53 facing each other are respectively provided with a first mounting column 171 and a second mounting column 533, and the first mounting column 171 and the second mounting column 533 are respectively arranged at different positions in the radial direction of the switching shaft 51.

[0160] The first mounting ring 811 is mounted on the first mounting column 171, and the second mounting ring 821 is mounted on the second mounting column 533. It should be noted that: Fig. 9 In order to facilitate observation, the transmission plate 53 is moved a certain distance away from the liner cover 17, and the second mounting ring 821 and the second mounting column 533 are in a disengaged state.

[0161] Such arrangement enables the first connecting arm 81 and the second connecting arm 82 of the torsion spring to be reliably mounted on the lining cover 17 and the transmission plate 53 respectively.

[0162] In the embodiment of the present application, a sliding groove 534 is provided on the surface of the lining cover 17 facing the transmission disc 53. When the transmission disc 53 rotates, the second mounting column 533 slides in the sliding groove 534. The sliding groove 534 has a first side groove wall 5341 and a second side groove wall 5342 that are oppositely arranged along the sliding direction.

[0163] When the transmission plate 53 rotates to the first position, the second mounting post 533 abuts against the first side groove wall 5341 ; when the transmission plate 53 rotates to the second position, the second mounting post 533 abuts against the second side groove wall 5342 .

[0164] Such an arrangement makes it easy to limit the rotation of the transmission disk 53 through the second mounting column 533 when the transmission disk 53 rotates.

[0165] Fig.10 A schematic diagram of the structure of the inner lining cover and the transmission plate cooperating with each other in the air nozzle provided in an embodiment of the present application.

[0166] Reference Fig.10 For easy observation, the transmission disc 53 is cut, and the outer contour of the transmission disc 53 is shown by a dotted line.

[0167] In the embodiment of the present application, a first limiting portion 172 and a second limiting portion 535 are respectively provided on the opposite surfaces of the lining cover 17 and the transmission plate 53 .

[0168] There are two first limiting portions 172 and one second limiting portion 535. When the switching shaft 51 rotates around the axis, the second limiting portion 535 abuts against the two first limiting portions 172 respectively.

[0169] When the second limiting portion 535 abuts against one of the first limiting portions 172, the transmission plate 53 is located at the first position, and when the second limiting portion 535 abuts against the other first limiting portion, the transmission plate 53 is located at the second position. In this way, the rotation of the transmission plate 53 between the first position and the second position can be limited.

[0170] Furthermore, the lining cover 17 is connected to one end portion of the air duct body 40 along the first direction F, and a part of the structure of the air duct body 40 is inserted into the lining cover 17 .

[0171] During the specific connection, the air duct body 40 and the lining cover 17 may be connected by fasteners such as screws.

[0172] Furthermore, a sealing ring 90 is connected between the liner cover 17 and the inner wall of the casing 10 .

[0173] With such arrangement, when the second side wall 16 and the main body 41 are detachable, air leakage of the first extended air duct 24 and the second extended air duct 34 can be prevented.

[0174] Combine the following Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig. 9 , illustrating the switching process between the straight blowing and smoothing states of the air nozzle 100 in an embodiment of the present application.

[0175] for Figure 3 , Figure 7In the state shown, the switching plate 52 abuts against the first stop wall 52, closing the first inlet 22. As shown by the dotted arrow, the air from the air inlet 12 passes through the second extended air duct 34, the second main air duct 33, and flows out through the air outlet 11. Since part of the channel section of the second main air duct 33 is bent downward near the outlet position, the air blown out through the second main air duct 33 has a smoothing effect. In this state, refer to Figure 8 , the transmission plate 53 is in the first position.

[0176] When the operator needs to switch to the direct blowing mode, the operator manually operates the knob 61 to rotate the transmission disk 53 counterclockwise. Before the transmission disk 53 rotates to the third position, the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 approach each other, and the angle becomes smaller, so that the elastic member 80 always applies a clockwise torque to the transmission disk 53. The operator needs to overcome the torque and continue to rotate the transmission disk 53 counterclockwise. Until it reaches the third position as the central position. At this time, the transmission disk 53 rotates from the third position to the second position, and the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 move away from each other, and the angle becomes larger. At this time, the elastic member 80 always applies a counterclockwise torque to the transmission disk 53. Even if the operator does not operate the knob 61 at this time, the transmission disk will switch the transmission disk 53 under the action of the counterclockwise torque. Figure 4 and Fig. 9 The second position is shown.

[0177] When the transmission plate 53 is in the second position, refer to Figure 4 , the switching plate 52 abuts against the second stop wall 44 to close the second inlet 32. As shown by the dotted arrow, the air from the air inlet 12 passes through the first extended air duct 24, the first main air duct 23, and flows out through the air outlet 11. Since the position of the first main air duct 23 near the outlet is a straight channel, the air blown out through the first main air duct 23 has a straight blowing effect.

[0178] When the operator needs to switch to the smoothing mode, the operator manually operates the knob 61 to rotate the transmission disk 53 clockwise. Before the transmission disk 53 rotates to the third position, the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 approach each other, and the angle becomes smaller, so that the elastic member 80 always applies a counterclockwise torque to the transmission disk 53. The operator needs to overcome this torque and continue to rotate the transmission disk 53 clockwise. Until it reaches the third position as the central position. At this time, the transmission disk 53 rotates from the third position to the first position, and the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 move away from each other, and the angle becomes larger. At this time, the elastic member 80 always applies a clockwise torque to the transmission disk 53. Even if the operator does not operate the knob 61 at this time, the transmission disk will switch the transmission disk 53 to the first position under the action of the clockwise torque. Figure 3 and Figure 8 First position shown.

[0179] The embodiment of the present application further provides a hair care appliance, comprising the above-mentioned nozzle 100. The structure, function, working principle, etc. of the nozzle 100 have been described in detail above and will not be repeated here.

[0180] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0181] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A tuyere, characterized in that: include: A casing (10), wherein a first air duct (20) and a second air duct (30) are formed in the casing (10), the air nozzle (100) takes in air through a first inlet (22) of the first air duct (20) and a second inlet (32) of the second air duct (30), and discharges air through outlets of the first air duct (20) and the second air duct (30), and an inner lining cover (17) is further provided in the casing (10); A switching member (50) is connected to the housing (10) so as to rotate about an axis, and the switching member (50) has a first rotation position, a second rotation position, and a third rotation position between the first rotation position and the second rotation position relative to the inner lining cover (17); the switching member (50) closes the first inlet (22) when it is in the first rotation position, and closes the second inlet (32) when it is in the second rotation position; An operating assembly (60) comprises an elastic member (80), wherein the elastic member (80) is respectively connected to the switching member (50) and the lining cover (17); The elastic member (80) is used to always apply a clockwise torque to the switching member (50) when the switching member (50) is between the first rotation position and the third rotation position, and the elastic member (80) is also used to always apply a counterclockwise torque to the switching member (50) when the switching member (50) is between the second rotation position and the third rotation position.

2. The air nozzle according to claim 1, characterized in that: The elastic member (80) is a torsion spring, and the torsion spring comprises a torsion spring body (801), a first connecting arm (81) and a second connecting arm (82); The first connecting arm (81) is connected to the lining cover (17), and the second connecting arm (82) is connected to the switching member (50).

3. The air nozzle according to claim 2, characterized in that: The first connecting arm (81) and the second connecting arm (82) extend from the end of the torsion spring body (801) toward the radial outside of the torsion spring body (801), and the first connecting arm (81) and the second connecting arm (82) have a preset angle.

4. The air nozzle according to claim 3, characterized in that: The switching member (50) comprises a switching shaft (51) and a transmission plate (53) connected to one end of the switching shaft (51); the end of the switching shaft (51) away from the transmission plate (53) and the transmission plate (53) are both rotatably connected to the inner wall of the housing (10) around the axis; The ends of the first connecting arm (81) and the second connecting arm (82) are respectively provided with a first mounting ring (811) and a second mounting ring (821); The lining cover (17) and the transmission plate (53) are arranged opposite to each other, and a first mounting column (171) and a second mounting column (533) are respectively arranged on the surfaces opposite to each other, and the first mounting column (171) and the second mounting column (533) are respectively arranged at different positions in the radial direction of the switching shaft (51); The first mounting ring (811) is mounted on the first mounting column (171), and the second mounting ring (821) is mounted on the second mounting column (533).

5. The air nozzle according to claim 4, characterized in that: A sliding groove (534) is provided on the surface of the inner lining cover (17) facing the transmission disc (53); when the transmission disc (53) rotates, the second mounting post (533) slides in the sliding groove (534); the sliding groove (534) has a first side groove wall (5341) and a second side groove wall (5342) arranged opposite to each other along the sliding direction of the second mounting post (533); the first rotation position, the second rotation position and the third rotation position of the switching member (50) correspond to the first position, the second position and the third position of the transmission disc (53), respectively; When the transmission plate (53) rotates to the first position, the second mounting column (533) abuts against the first side groove wall (5341); when the transmission plate (53) rotates to the second position, the second mounting column (533) abuts against the second side groove wall (5342).

6. The air nozzle according to claim 5, characterized in that: A first limiting portion (172) and a second limiting portion (535) are respectively provided on opposite surfaces of the lining cover (17) and the transmission plate (53); The number of the first limiting portions (172) is two, and the number of the second limiting portions (535) is one; When the switching shaft (51) rotates around the axis, the second limiting portion (535) abuts against the two first limiting portions (172) respectively; When the second limiting portion (535) abuts against one of the first limiting portions (172), the transmission plate (53) is located at the first position; when the second limiting portion (535) abuts against another of the first limiting portions (172), the transmission plate (53) is located at the second position.

7. The air nozzle according to claim 1, characterized in that: The switching member (50) rotates counterclockwise or clockwise from the third rotation position to the first rotation position and the second rotation position respectively after rotating at the same angle relative to the lining cover (17).

8. The air nozzle according to claim 1, characterized in that: An air outlet (11) and an air inlet (12) are provided on the surface of the housing (10); the first outlet (21) of the first air duct (20) and the second outlet (31) of the second air duct (30) are both in communication with the air outlet (11); and the first inlet (22) of the first air duct (20) and the second inlet (32) of the second air duct (30) are both arranged adjacent to the air inlet (12); The width dimensions of the first air duct (20) and the second air duct (30) along the first direction (F) are both greater than the opening dimension of the air inlet (12) along the first direction (F), and the air inlet (12) intakes air toward a position between two ends of at least one of the first inlet (22) and the second inlet (32) along the first direction (F).

9. The air nozzle according to claim 8, characterized in that: The first air duct (20) comprises a first main air duct (23) and a first extended air duct (24) which are connected; the second air duct (30) comprises a second main air duct (33) and a second extended air duct (34) which are connected; The air nozzle (100) further comprises an air duct body (40) arranged on the inner wall of the housing (10); the first main air duct (23) and the second main air duct (33) are layeredly formed in the air duct body (40) along a second direction (S); the outlets of the first main air duct (23) and the second main air duct (33) respectively form the first outlet (21) and the second outlet (31); the second direction (S) is the air inlet direction of the air inlet (12); A partial channel section of the second main air duct (33) close to its outlet is bent in a direction away from the first main air duct (23).

10. The air nozzle according to claim 9, characterized in that: The number of the first main air ducts (23) is multiple, and the multiple first main air ducts (23) are arranged in a row along the first direction (F); The number of the second main air ducts (33) is plural, and the second main air ducts (33) are arranged in a row along the first direction (F).

11. The air nozzle according to claim 10, characterized in that: The air inlet (12) takes in air toward a central position of the first inlet (22) and the second inlet (32) along the first direction (F); The opening area of ​​the inlet (231) of each of the first main air ducts is configured to gradually increase in sequence from the central position in the first direction (F) to the positions at both ends of the first direction (F); and / or The opening area of ​​the inlet (331) of each of the second main air ducts is configured to gradually increase in sequence from the central position in the first direction (F) to the positions at both ends in the first direction (F).

12. The air nozzle according to claim 11, characterized in that: The air duct body (40) comprises a body (41) and a wind shield (42); Each of the first main air ducts (23) and each of the second main air ducts (33) are formed in the body (41), and a plurality of first air holes (421) and a plurality of second air holes (422) are provided on the wind shield (42); The first air holes (421) are connected to the first main air ducts (23) in a one-to-one correspondence, and the first air holes (421) form the entrances (231) of the first main air ducts; The second air holes (422) are connected to the second main air ducts (33) in a one-to-one correspondence, and the second air holes (422) form the entrances (331) of the second main air ducts.

13. The air nozzle according to claim 12, characterized in that: The inner wall of the housing (10) is provided with two blocking bars (14), and the two blocking bars (14) are arranged opposite to each other along the second direction (S); The two blocking bars (14) are both disposed on a side of the air duct body (40) that is away from the air outlet (11) so as to fix the air duct body (40) in the housing (10).

14. The air nozzle according to claim 10, characterized in that: The air outlet (11) comprises a first sub-air outlet (111) and a second sub-air outlet (112), the first sub-air outlet (111) being connected to the outlet of each of the first main air ducts (23), and the second sub-air outlet (112) being connected to the outlet of each of the second main air ducts (33); The first sub-air outlet (111) and the second sub-air outlet (112) both extend along the first direction (F), and the first sub-air outlet (111) and the second sub-air outlet (112) are arranged at intervals along the second direction (S).

15. The air nozzle according to claim 9, characterized in that: The switching member (50) comprises a switching shaft (51) and a switching plate (52) connected to the circumferential surface of the switching shaft (51); the switching shaft (51) is rotatably connected to the inner wall of the housing (10) around the axis; A partition plate (43) is also provided on the surface of the air duct body (40), and the partition plate (43) is located between the inlet (231) of the first main air duct and the inlet (331) of the second main air duct, and abuts against the circumferential surface of the switching shaft (51); The air duct body (40), the switching shaft (51) and the inner wall of the casing (10) jointly define an annular channel (H); in the annular channel (H), at least a portion of the channel section located between one surface of the partition (43) and the air inlet (12) forms the first extended air duct (24); and at least a portion of the channel section located between the other surface of the partition (43) and the air inlet (12) forms the second extended air duct (34).

16. The air nozzle according to claim 15, characterized in that: The inner wall of the housing (10) is provided with a first stop wall (13), and the air duct body (40) is provided with a second stop wall (44); the air inlet (12) is located between the first stop wall (13) and the second stop wall (44); the first stop wall (13) defines the first inlet (22), and the second stop wall (44) defines the second inlet (32); When the switching plate (52) rotates around the axis, it abuts against the first stop wall (13) and the second stop wall (44) respectively; when the switching plate (52) abuts against the first stop wall (13), the first inlet (22) is closed; when the switching plate (52) abuts against the second stop wall (44), the second inlet (32) is closed.

17. The air nozzle according to claim 16, characterized in that: The air inlet (12) and the switching shaft (51) are arranged at intervals along the second direction (S), and the air inlet (12) and the switching shaft (51) are both located on the same side of the air duct body (40), and the distance between the air inlet (12) and the entrance (331) of the second main air duct is smaller than the distance between the air inlet (12) and the entrance (231) of the first main air duct.

18. The air nozzle according to claim 15, characterized in that: A gasket (431) is provided at the end of the partition plate (43), and the contour shape of the surface of the gasket (431) on one side facing the switching shaft (51) matches the outer peripheral surface of the switching shaft (51).

19. The air nozzle according to claim 18, characterized in that: The inner wall of the housing (10) is further provided with a first mounting groove (5311), and at least a part of the structure of the partition (43) is inserted and installed in the first mounting groove (5311).

20. The air nozzle according to claim 16, characterized in that: The housing (10) comprises a first side wall (15) and a second side wall (16) which are arranged opposite to each other along the first direction (F); the first end of the switching shaft (51) is rotatably connected to the first side wall (15), and the second end of the switching shaft (51) is rotatably connected to the second side wall (16).

21. The air nozzle according to claim 20, characterized in that: The first side wall (15) is provided with a second installation groove (151), and the inner groove wall of the second installation groove (151) is provided with a plurality of protruding ribs (152), and the plurality of protruding ribs (152) form a circle around the axis; The first end of the switching shaft (51) is inserted into the second mounting groove (151) and abuts against each of the protruding ribs (152).

22. The air nozzle according to claim 21, characterized in that: A partial groove section of the second installation groove (151) is provided with an avoidance opening (1511) for avoiding the rotation of the switching plate (52); When the switching plate (52) abuts against the first stop wall (13), the switching plate (52) abuts against an edge of the avoidance opening (1511); When the switching plate (52) abuts against the second stop wall (44), the switching plate (52) abuts against another edge of the avoidance opening (1511).

23. The air nozzle according to claim 20, characterized in that: The air nozzle (100) further comprises an operating assembly (60), wherein the operating assembly (60) comprises a knob (61), and the switching member (50) further comprises a transmission disk (53), wherein the transmission disk (53) is connected to the second end of the switching shaft (51), and the transmission disk (53) is rotatably connected to the second side wall (16), so that the other end of the switching shaft (51) is rotatably connected to the second side wall (16); A first matching portion (531) is provided on a side of the transmission disk (53) facing away from the switching shaft (51), and the first matching portion (531) passes through the second side wall (16) and extends out of the housing (10); the knob (61) is located outside the housing (10) and is connected to the first matching portion (531) of the transmission disk (53).

24. The air nozzle according to claim 23, characterized in that: A second matching portion (611) is provided on the surface of the knob (61) facing the transmission disk (53), a groove (5311) is provided on the top surface of the second matching portion (611), and the first matching portion (531) is sleeved in the groove (5311).

25. The air nozzle according to claim 23, characterized in that: The knob (61) is provided with an opening (612) to expose a portion of the structure of the transmission disk (53). The operating assembly (60) further comprises a knob cover (62) which is snap-connected to the knob (61) and blocks the opening (612).

26. The air nozzle according to claim 23, characterized in that: A step portion (532) is formed on the circumferential surface of the transmission disc (53), and a mounting hole (161) is formed on the second side wall (16). The edge of the mounting hole (161) is snap-fitted onto the step portion (532) so that the transmission disc (53) is rotatably connected to the second side wall (16).

27. A hair care device, characterized in that: It comprises the nozzle (100) according to any one of claims 1 to 26.

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