CN216044636U

CN216044636U - Air duct structure and air outlet device

Info

Publication number: CN216044636U
Application number: CN202122642053.1U
Authority: CN
Inventors: 刘润生; 麦焕; 陈宇强; 王勇; 王季彦; 范瑞鹏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-15
Anticipated expiration: 2031-10-29

Abstract

The utility model provides an air duct structure and an air outlet device, comprising: the air duct assemblies are annularly arranged and formed with first air ducts, and first matching pieces are arranged on the air duct assemblies; the first limiting piece is arranged on the periphery of the first air duct, and is provided with a plurality of second matching pieces which are movably connected with the first matching pieces; under the action of external force, the first limiting piece is provided with a first working state which drives the adjacent air duct assemblies to be away from each other and increases the inner diameter of the first air duct, and a second working state which drives the adjacent air duct assemblies to be close to each other and reduces the inner diameter of the first air duct. Through set up first locating part in the dryer subassembly outside, the relative movement stroke between the adjacent dryer subassembly is restricted, and then can be under the exogenic action, realize controlling the internal diameter size of the first dryer that the dryer subassembly formed, and then when the air current passes through first dryer, can adjust through the internal diameter size to first dryer, realize gathering together or the diffusion effect of realizing the air current respectively.

Description

Air duct structure and air outlet device

Technical Field

The utility model relates to the technical field of fans, in particular to an air duct structure and an air outlet device.

Background

The floor fan is a traditional fan, generally adopts a single-layer or double-layer fan blade, and is matched with a metal or plastic mesh enclosure to realize air blowing and cooling. The fan blade channels are longer in the radial direction, no diffusion air duct exists, and air flow diffuses faster after flowing out of the mesh enclosure, so that the floor fan is wide in blowing range, blown air is soft and comfortable, but the air speed is lower, and the air supply distance is shorter. The floor fan has been compared to the circulation fan and has been increased turbine fan blade and diffusion dryer isotructure, can let wind be the spiral along certain direction and blow off, along with the flabellum stirs, finally can form spiral shape column wind, and its wind speed is high, the air supply distance is far away, and more suitable circulation room air receives consumer's favor more and more, but high-speed spiral blow, and the air supply is concentrated, lets the people have uncomfortable sense after the direct-blowing human body.

The two fans have respective advantages, but the two fans cannot realize two blowing functions at the same time, so that the pursuit of people on the blowing comfort level and the health condition is met.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defect that the functions of respectively collecting and dispersing wind cannot be simultaneously realized by a single wind outlet device in the prior art, thereby providing an air duct structure and a wind outlet device.

The present invention provides an air duct structure, including: the air duct assemblies are annularly arranged and formed with first air ducts, and first matching pieces are arranged on the air duct assemblies; the first limiting piece is arranged on the periphery of the first air duct, a plurality of second matching pieces are arranged on the first limiting piece, and the second matching pieces are movably connected with the first matching pieces; under the exogenic action, first locating part has that the drive is adjacent the dryer subassembly is kept away from each other to the increase the first operating condition of first dryer internal diameter, and the drive is adjacent the dryer subassembly is close to each other, and reduces the second operating condition of first dryer internal diameter.

The wind channel structure still includes: the second limiting part is arranged on the peripheral side of the first air duct, is arranged at an interval with the first limiting part along the axial direction of the first air duct, is hinged to the adjacent two air duct assemblies respectively, and is suitable for limiting the interval change of the position, corresponding to the second limiting part, of the air duct assembly in the first working state and the second working state.

The wind channel structure still includes the second dryer, the second dryer includes: the barrel body is arranged at an interval with the first air barrel, at least covers the outer side of the first air barrel between the first limiting piece and the second limiting piece, and the first limiting piece is arranged on the barrel body.

The dryer subassembly includes: the sheet cylinder part is arranged in an arc sheet shape and is provided with the first matching piece; the connecting portion is arranged on the outer side of the sheet cylinder portion and arranged at an interval with the first matching piece, and the connecting portion is hinged to the second limiting piece.

The second limiting part comprises a bottom plate, at least two clamping parts are arranged on one side of the bottom plate, and clamping openings of the two clamping parts are arranged in an inclined manner;

the connecting part comprises a supporting part and an articulated shaft, the supporting part is arranged along the outer side surface of the sheet cylinder part in a protruding mode, the articulated shaft is arranged on the supporting part, and two ends of the articulated shaft are respectively arranged on the clamping parts of the two second limiting parts and are hinged to clamping openings of the clamping parts.

A convex block which is arranged towards the hinge shaft in a protruding way is arranged on the clamping opening of the clamping part.

The second matching piece is arranged in an arc shape and extends along the direction far away from the central axis of the first air duct;

the first fitting piece comprises a base portion and a sliding column structure, the base portion is arranged on the sheet tube portion in a protruding mode, and the sliding column structure is arranged on the base portion, extends into the second fitting piece and is suitable for moving along the second fitting piece under the action of external force.

The cylinder body further comprises a plurality of extending parts, and the extending parts are arranged along the cylinder body in a protruding mode towards one end of the second limiting part;

the supporting piece is further provided with a containing hole, the extending portion penetrates through the containing hole, and the containing hole is suitable for containing and limiting the extending portion.

The air duct structure further comprises a support structure, which comprises: the ring frame is arranged along the circumferential sides of the first air ducts, and the first limiting parts are arranged along the axial direction of the first air ducts at intervals, a plurality of second limiting parts are circumferentially arranged on the ring frame, and the second limiting parts are correspondingly adjacent to the hinge shaft gap positions.

The support structure further comprises: and the plurality of bent holes are arranged on the ring frame, are arranged in an annular manner and are arranged on the inner side of the second limiting part, and are suitable for accommodating and limiting the extending part.

The support structure further comprises: the annular, with the coaxial setting of ring frame, the opening orientation the stack shell sets up, follows the tank bottom of annular is provided with a plurality of the curved hole.

The sheet barrel part further comprises a driving part, at least part of the driving part is arranged on the inner side of the ring frame and extends in the direction away from the first matching piece, and the driving part is suitable for being connected with an external driving piece and drives the air duct assembly to rotate relative to the first limiting piece under the action of the external driving piece.

The utility model also provides an air outlet device, comprising: the air duct structure; and the power part is arranged on the inner side of the first air duct and is suitable for driving the air to flow along the first air duct.

The support structure further comprises: the mounting part is arranged on the inner side of the ring frame, is coaxial with the ring frame and is provided with the power part;

and the supporting rods are uniformly distributed on the periphery of the installation part and are respectively connected with the installation part and the ring frame.

The technical scheme of the utility model has the following advantages:

1. the air duct structure provided by the utility model comprises: the air duct assemblies are annularly arranged and formed with first air ducts, and first matching pieces are arranged on the air duct assemblies; the first limiting piece is arranged on the periphery of the first air duct, a plurality of second matching pieces are arranged on the first limiting piece, and the second matching pieces are movably connected with the first matching pieces; under the exogenic action, first locating part has that the drive is adjacent the dryer subassembly is kept away from each other to the increase the first operating condition of first dryer internal diameter, and the drive is adjacent the dryer subassembly is close to each other, and reduces the second operating condition of first dryer internal diameter.

The air duct assembly is annularly arranged through the setting, and the first limiting part is arranged outside the air duct assembly, so that the relative movement stroke between the adjacent air duct assemblies is limited, further, the control on the inner diameter size of the first air duct formed by the air duct assembly can be realized under the action of external force, further, when the air flow passes through the first air duct, the adjustment can be carried out on the inner diameter size of the first air duct, the gathering or diffusion effect of the air flow is realized respectively, and the defect that the functions of respectively gathering and diffusing air cannot be simultaneously realized by a single air outlet device in the prior art is overcome.

2. The air duct structure provided by the utility model further comprises: the second limiting part is arranged on the circumferential side of the first air duct, arranged at an interval along the axial direction of the first air duct and hinged with the air duct assembly to limit the distance change of the position, corresponding to the second limiting part, on the adjacent air duct assembly in the first working state and the second working state.

The second fitting piece on the first limiting piece is movably connected with the first fitting piece on the first air duct, under the action of external force, the position of the first limiting piece is arranged on each air duct assembly in a corresponding peripheral side, relative displacement is generated between the position and the first limiting piece, the distance between the adjacent air duct assemblies in the corresponding position is driven to change, then the inner diameter of the first air duct at the position is changed, and effective adjustment of wind gathering or wind dispersing is realized.

Meanwhile, the second limiting parts are arranged adjacent to each other in a hinged mode, so that the positions of the air duct assemblies, corresponding to the positions where the second limiting parts are arranged on the circumferential sides, are only relatively rotated with the second limiting parts when an external force acts, but the distance between the adjacent air duct assemblies is inconvenient, in addition, the second limiting parts and the first limiting parts are arranged at intervals along the axial direction of the first air duct, so that the inner diameter of one side of the first air duct can be changed under the action of the external force, the inner diameter of the other side of the first air duct is kept unchanged, the appearance of the first air duct can be changed between a cylindrical shape and a horn shape, the deformation mode of the air duct structure is increased, and the air dispersing effect of the air duct is effectively promoted.

3. The air duct structure provided by the utility model also comprises a second air duct, wherein the second air duct comprises: the barrel body is arranged at an interval with the first air barrel, at least covers the outer side of the first air barrel between the first limiting piece and the second limiting piece, and the first limiting piece is arranged on the barrel body.

Set up the second dryer through the outside cladding at first dryer, can compensate in the clearance of each dryer subassembly when keeping away from each other on first dryer, avoid the air current in the first dryer to flow from the clearance, make the air duct structure the air current run off, set up like this and effectively reduced the amount of wind loss of first dryer in taking place deformation process.

4. In the air duct structure provided by the utility model, the clamping opening of the clamping part is provided with the convex block which is convexly arranged towards the hinge shaft.

The arrangement of the convex block structure can reduce the contact area between the hinged shaft and the clamping opening, ensure the bearing and the limiting of the hinged shaft, reduce the friction between the clamping part and the hinged shaft and prolong the service life of the air duct structure.

5. According to the air duct structure provided by the utility model, the second matching piece is arranged in an arc shape and extends along the direction far away from the central axis of the first air duct; the first fitting piece comprises a base portion and a sliding column structure, the base portion is arranged on the sheet tube portion in a protruding mode, and the sliding column structure is arranged on the base portion, extends into the second fitting piece and is suitable for moving along the second fitting piece under the action of external force.

Because swing joint between first fitting piece and second fitting piece, the dryer subassembly that is equipped with first fitting piece can be followed the orbit motion of second fitting piece, is the arc setting through setting up the second fitting piece to keep away from first dryer axis direction and extend, the dryer subassembly is rotatory for first locating part emergence in the motion process, makes the external force of relative motion between drive dryer subassembly and first locating part for along the rotational force of turning to, the user's application of force of being convenient for like this.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of an air outlet device provided in an embodiment of the present invention;

fig. 2 is an exploded view of the air outlet device shown in fig. 1;

fig. 3 is a schematic structural view of a second air duct of the air outlet device shown in fig. 1;

fig. 4 is a schematic structural view of an air duct assembly of the air outlet device shown in fig. 1;

fig. 5 is a schematic structural view of a bracket structure of the air outlet device shown in fig. 1;

fig. 6 is a schematic structural view of the upper wind barrel assemblies of the wind outlet device shown in fig. 1, which are far away from each other to limit positions;

fig. 7 is a schematic front view of the air outlet device shown in fig. 6;

fig. 8 is a schematic structural view of the upper wind barrel assemblies of the wind outlet device shown in fig. 1 approaching to the limit position;

fig. 9 is a schematic front view of the air outlet device shown in fig. 8;

fig. 10 is a schematic structural view of a second limiting member on the air outlet device shown in fig. 5;

description of reference numerals:

1-a first air duct; 2-an air duct component; 21-a sheet cylinder part; 211-a drive section; 22-a first mating member; 221-a base; 222-a strut structure; 23-a connecting part; 231-a support; 232-articulated shaft; 233-containing holes; 3-a second air duct; 31-a first stop; 311-a second mating member; 32-a barrel body; 33-an extension; 4-a scaffold structure; 41-ring frame; 42-a second stop; 421-a bottom plate; 422-clamping part; 423-bump; 43-curved hole; 44-ring groove; 45-a mounting portion; 46-a support bar; 5-a power part.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 10, the present embodiment provides an air duct structure, including: a plurality of air duct assemblies 2 and a first limiting member 31

The plurality of air duct assemblies 2 are annularly arranged and formed with first air ducts 1, specifically, in the embodiment, the first air duct 1 is cylindrical and comprises six air duct assemblies 2, and the outer sides of the air duct assemblies 2 far away from the central axis are provided with first matching pieces 22;

the first limiting member 31 is annularly disposed on the outer circumference of the first air duct 1, and a plurality of second mating members 311 are disposed thereon, the second mating members 311 are movably connected with the first mating members 22, in this embodiment, the second mating members 311 and the first mating members 22 are disposed in a one-to-one correspondence. Under the action of external force, the second mating member 311 and the first mating member 22 move relatively, so that the first limiting member 31 has a first working state of driving the adjacent air duct assemblies 2 to move away from each other and increase the inner diameter of the first air duct 1, and a second working state of driving the adjacent air duct assemblies 2 to move close to each other and decrease the inner diameter of the first air duct 1.

Be annular arrangement's dryer subassembly 2 through the setting, and through set up first locating part 31 in the dryer subassembly 2 outside, the relative movement stroke between the adjacent dryer subassembly 2 of restriction, and then can be under the exogenic action, realize controlling the internal diameter size of the first dryer 1 that dryer subassembly 2 formed, and then when the air current passes through first dryer 1, can adjust through the internal diameter size to first dryer 1, realize gathering together or the diffusion effect of air current respectively, the defect that single air-out device can't realize gathering together respectively and the wind function of loosing simultaneously among the prior art has been overcome.

As an alternative embodiment, the first stopper 31 may be disposed in the inner circumferential direction of the first air duct 1, and adjust the second fitting member 311 and the first fitting member 22 correspondingly. As another alternative embodiment, the first limiting members 31 are arranged in a ring shape, and are connected to each other and then surround the first air duct 1.

The air duct structure further includes a second stopper 42. The second limiting members 42 are disposed on the outer peripheral side of the first air duct 1, are spaced from the first limiting members 31 along the axial direction of the first air duct 1, are respectively hinged to the two adjacent air duct assemblies 2, and are adapted to limit the distance change between the positions of the adjacent air duct assemblies 2 corresponding to the second limiting members 42 in the first working state and the second working state, so as to keep the distance change unchanged. The second limiting members 42 are correspondingly disposed between two adjacent air duct assemblies 2, and in this embodiment, six second limiting members 42 are disposed. As an alternative embodiment, the second stopper 42 may be provided in the inner circumferential direction of the first air duct 1. As another alternative embodiment, the second stoppers 42 may not be provided, and at least two first stoppers 31 may be provided at intervals on the circumferential side of the first air duct 1.

The second fitting piece 311 on the first limiting piece 31 is movably connected with the first fitting piece 22 on the first air duct 1, and under the action of external force, the position of each air duct assembly 2, corresponding to the position where the first limiting piece 31 is arranged on the circumferential side, and the first limiting piece 31 generate relative displacement, so that the distance between the adjacent air duct assemblies 2 in the corresponding position is driven to change, then the inner diameter of the first air duct 1 in the position is changed, and the effective adjustment of air gathering or air dispersing is realized.

Meanwhile, the second limiting pieces 42 are arranged adjacent to the two air duct assemblies 2 in a hinged mode, so that the positions of the air duct assemblies 2, corresponding to the peripheral sides, of the second limiting pieces 42 are arranged, when the external force acts, the air duct assemblies only rotate relative to the second limiting pieces 42, but the distance between the adjacent air duct assemblies 2 is inconvenient, in addition, the second limiting pieces 42 and the first limiting pieces 31 are arranged at intervals along the axial direction of the first air duct 1, so that the inner diameter of one side of the first air duct 1 can be changed under the action of the external force, the inner diameter of the other side of the first air duct 1 is kept unchanged, the appearance of the first air duct 1 can be changed between a cylindrical shape and a horn shape, the deformation mode of an air duct structure is increased, and the air dispersing effect of the air duct is effectively promoted.

The air duct structure further comprises a second air duct 3, and the second air duct 3 comprises a duct body 32. The barrel 32 is spaced apart from the first wind barrel 1 and covers the outside of the first wind barrel 1 from the first limiting member 31 to the second limiting member 42, and the first limiting member 31 is disposed on the end of the barrel 32 away from the second limiting member 42. As an alternative embodiment, the barrel 32 may extend in both sides of the first stopper 31 to the second stopper 42. As another alternative embodiment, the barrel 32 may not be provided.

The air duct assembly 2 includes a sheet tube portion 21 and a connecting portion 23, the sheet tube portion 21 is disposed in an arc shape, the plurality of sheet tube portions 21 can be disposed in a circular shape, in this embodiment, the sheet tube portion 21 is disposed in a one-sixth circular shape, a first fitting member 22 is disposed on an outer side surface of the sheet tube portion and adjacent to one end portion, the connecting portion 23 is disposed on an outer side surface of the sheet tube portion and adjacent to the other end portion, and the connecting portion 23 is spaced from the first fitting member 22 and is hinged to the second limiting member 42. In this embodiment

In the present embodiment, the connecting portion 23 includes a stay 231 and a hinge shaft 232, the stay 231 is protrudingly provided along the outer side surface of the sheet tube portion 21, and the hinge shaft 232 is provided on the stay 231. Meanwhile, the connecting parts 23 on the air duct assemblies 2 are arranged at the same position.

The second limiting member 42 includes a bottom plate 421, two clamping portions 422 are symmetrically disposed on one side of the bottom plate 421, as an alternative implementation manner, a plurality of clamping portions 422 may also be disposed, in this embodiment, two ends of the hinge shaft 232 are respectively disposed on the clamping portions 422 of the two second limiting members 42 and are hinged to the clamping openings of the clamping portions 422, the clamping openings of the two clamping portions 422 are disposed in an inclined manner, and the two clamping portions 422 on the same bottom plate 421 respectively limit the ends of the two hinge shafts 232. Meanwhile, according to the number of the air duct components 2, the inclination angle between the hinge shafts 232 can be adaptively changed, and the included angle between the clamping openings of the two clamping parts 422 can be correspondingly adjusted.

In the present embodiment, a protrusion 423 protrudingly provided toward the hinge shaft 232 is provided on a nip side wall of the nip portion 422. The setting of lug 423 structure can reduce the area of contact of articulated shaft 232 with pressing from both sides the mouth, when guaranteeing the bearing and spacing to articulated shaft 232, has reduced the frictional force between clamping portion 422 and articulated shaft 232, has improved the life of wind channel structure.

In this embodiment, specifically, the second mating members 311 are disposed in an arc-shaped groove, or may be arc-shaped holes, six first limiting members 31 are uniformly disposed on the first limiting member 31, and extend in a direction away from the central axis of the first air duct 1; the first fitting member 22 includes a base portion 221 and a sliding pillar structure 222, wherein the base portion 221 is disposed on the barrel portion 21 in a protruding manner, and the sliding pillar structure 222 is disposed on the base portion 221 and extends into the second fitting member 311, and is adapted to move along the second fitting member 311 under an external force.

Because swing joint between first fitting piece 22 and second fitting piece 311, the dryer subassembly 2 that is equipped with first fitting piece 22 can be followed the orbit motion of second fitting piece 311, be the arc setting through setting up second fitting piece 311, and keep away from first dryer 1 axis direction and extend, dryer subassembly 2 takes place rotatoryly in the motion process for first locating part 31, make the external force of relative motion between drive dryer subassembly 2 and first locating part 31 for the rotational force along the rotation direction, the user's application of force of being convenient for like this.

The barrel 32 further includes a plurality of arc-shaped extending portions 33, the extending portions 33 are disposed along the barrel 32 and protrude toward one end of the second retaining member 42, and are distributed corresponding to the connecting portions 23 on the respective barrel portions 21, receiving holes 233 are disposed on the supporting members 231 of the connecting portions 23, the extending portions 33 pass through the receiving holes 233, and the receiving holes 233 can receive and retain the extending portions 33.

The air duct structure further includes a support structure 4, and the support structure 4 includes a ring frame 41, a second limiting member 42, a bent hole 43, a ring groove 44, and the like.

The ring frame 41 is disposed along the circumferential side of the first air duct 1, and is spaced from the first limiting member 31 along the axial direction of the first air duct 1, six second limiting members 42 are uniformly disposed along the circumferential direction of the ring frame 41, and the second limiting members 42 are disposed corresponding to the gap position between the adjacent hinge shafts 232. The arrangement of the ring frame 41 provides a mounting carrier for the second retaining member 42. as an alternative embodiment, the ring frame 41 may not be provided and the second retaining member 42 is independently connected to the adjacent hinge shaft 232.

The supporting structure 4 further includes a plurality of curved holes 43, the curved holes 43 are disposed on the ring frame 41, are arranged in a ring shape, and are disposed inside the second limiting member 42, and can accommodate and limit the extending portion 33. The bent hole 43 can be combined with the containing hole 233 to limit the extending part 33, so that the installation stability and the rotation stability of the barrel body 32 are improved. The support structure 4 further comprises a ring groove 44, the ring groove 44 is coaxially arranged with the ring frame 41, the opening of the ring groove 44 faces the barrel body 32, and a plurality of bent holes 43 are formed along the bottom of the ring groove 44. The provision of the annular groove 44 to accommodate the curved bore 43 further improves the operational stability of the extension 33 and barrel 32. For an alternative embodiment, the annular groove 44 may not be provided, and for an alternative embodiment, neither the curved hole 43 nor the annular groove 44 may be provided.

In this embodiment, the first air duct 1, the air duct assembly 2, the second air duct 3, and the support structure 4 are disposed along the same central axis.

In addition, sheet cylinder portion 21 still includes drive division 211, and drive division 211 sets up in the inboard of ring frame 41 orientation axis, extends along the direction of keeping away from first fitting piece 22, also can surpass ring frame 41 structure, and external drive spare is connected to drive division 211, and external drive spare specifically is driving motor and linking bridge, and under driving motor's effect, drive division 211 drives dryer subassembly 2 and rotates for first locating part 31. As an alternative embodiment, the driving unit 211 may not be provided, and the second duct 3 may be manually driven to adjust the air flow rate.

This embodiment still provides an air-out device, includes: the air duct structure and the power part 5 are characterized in that the power part 5 comprises a motor and an air wheel structure, and the power part 5 is arranged on the inner side of the first air duct 1 and can drive air to flow along the first air duct 1.

The support structure 4 further comprises a mounting part 45 and three support rods 46, wherein the mounting part 45 is arranged at the inner side of the ring frame 41 in a cylindrical shape, is coaxial with the ring frame 41 and is provided with a motor; the three support rods 46 are uniformly distributed along the circumferential side of the mounting portion 45 and respectively connect the mounting portion 45 and the ring frame 41.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. An air duct structure, comprising:

the air duct components (2) are annularly arranged and formed with first air ducts (1), and first matching pieces (22) are arranged on the air duct components (2);

the first limiting piece (31) is arranged on the peripheral side of the first air duct (1), a plurality of second matching pieces (311) are arranged on the first limiting piece, and the second matching pieces (311) are movably connected with the first matching pieces (22);

under the action of external force, the first limiting piece (31) has a first working state that the air duct assemblies (2) which are adjacent to each other are driven to be away from each other and the inner diameter of the first air duct (1) is increased, and a second working state that the air duct assemblies (2) which are adjacent to each other are driven to be close to each other and the inner diameter of the first air duct (1) is reduced.

2. The air duct structure according to claim 1, further comprising:

the second limiting part (42) is arranged on the peripheral side of the first air duct (1), arranged at intervals along the axial direction of the first air duct (1) and respectively hinged with the two adjacent air duct assemblies (2), and suitable for limiting the interval change of the position, corresponding to the second limiting part (42), of the adjacent air duct assembly (2) in the first working state and the second working state.

3. The air duct structure according to claim 2, characterized by further comprising a second air duct (3), the second air duct (3) comprising:

the barrel body (32) is arranged at an interval with the first air barrel (1), at least covers the outer side of the first air barrel (1) from the first limiting piece (31) to the second limiting piece (42), and the first limiting piece (31) is arranged on the barrel body.

4. A duct structure according to claim 3, characterized in that the air duct assembly (2) comprises:

the sheet cylinder part (21) is arranged in an arc sheet shape, and the first matching piece (22) is arranged on the sheet cylinder part;

the connecting part (23) is arranged on the outer side of the sheet tube part (21) and is arranged at an interval with the first matching piece (22), and the connecting part (23) is hinged with the second limiting part (42).

5. The air duct structure according to claim 4,

the second limiting part (42) comprises a bottom plate (421), at least two clamping parts (422) are arranged on one side of the bottom plate (421), and clamping openings of the two clamping parts (422) are arranged in an inclined mode;

the connecting portion (23) comprises a supporting piece (231) and an articulated shaft (232), the supporting piece (231) is arranged along the outer side face of the sheet barrel portion (21) in a protruding mode, the articulated shaft (232) is arranged on the supporting piece (231), and two ends of the articulated shaft are respectively arranged on the clamping portions (422) of the two second limiting pieces (42) and are hinged to clamping openings of the clamping portions (422).

6. The air duct structure according to claim 5, characterized in that a projection (423) provided to protrude toward the hinge shaft (232) is provided on the nip of the nip portion (422).

7. The air duct structure according to claim 5 or 6,

the second matching piece (311) is arranged in an arc shape and extends along the direction far away from the central axis of the first air duct (1);

the first matching piece (22) comprises a base portion (221) and a sliding column structure (222), wherein the base portion (221) is arranged on the sheet tube portion (21) in a protruding mode, and the sliding column structure (222) is arranged on the base portion (221), extends into the second matching piece (311), and is suitable for moving along the second matching piece (311) under the action of external force.

8. The air duct structure according to claim 7,

the cylinder body (32) further comprises a plurality of extending parts (33), and the extending parts (33) are arranged along the cylinder body (32) in a protruding mode towards one end of the second limiting part (42);

the supporting piece (231) is further provided with a containing hole (233), the extending portion (33) penetrates through the containing hole (233), and the containing hole (233) is suitable for containing and limiting the extending portion (33).

9. The air duct structure according to claim 8, characterized by further comprising a support structure (4), the support structure (4) comprising:

the ring frame (41) is arranged along the circumferential side of the first air duct (1), the first limiting part (31) is arranged at an interval in the axial direction of the first air duct (1), a plurality of second limiting parts (42) are circumferentially arranged on the ring frame (41), and the second limiting parts (42) are arranged correspondingly and adjacently to the gap position of the hinge shaft (232).

10. The air duct structure according to claim 9, characterized in that the supporting structure (4) further comprises:

and the plurality of bent holes (43) are arranged on the ring frame (41), are arranged in a ring shape and are arranged on the inner side of the second limiting part (42), and are suitable for accommodating and limiting the extending part (33).

11. The air duct structure according to claim 10, characterized in that the supporting structure (4) further comprises:

annular groove (44), with ring frame (41) coaxial setting, the opening orientation stack shell (32) set up, follow the tank bottom of annular groove (44) is provided with a plurality of curved hole (43).

12. The air duct structure according to any one of claims 9-11, wherein the sheet tube portion (21) further comprises a driving portion (211), the driving portion (211) is at least partially disposed inside the ring frame (41) and extends in a direction away from the first mating member (22), and the driving portion (211) is adapted to be connected to an external driving member and, under the action of the external driving member, drive the air duct assembly (2) to rotate relative to the first limiting member (31).

13. The utility model provides an air-out device which characterized in that includes:

the air duct structure of any one of claims 1-12;

and the power part (5) is arranged on the inner side of the first air duct (1) and is suitable for driving the air to flow along the first air duct (1).

14. The air outlet device of claim 13, wherein the support structure (4) further comprises:

the mounting part (45) is arranged on the inner side of the ring frame (41), is coaxially arranged with the ring frame (41), and is provided with the power part (5);

and the supporting rods (46) are uniformly distributed on the circumferential side of the mounting part (45) and are respectively connected with the mounting part (45) and the ring frame (41).