Folding fan with multiple clamping positions

Abstract

The utility model discloses a folding fan with multiple clamping positions, which relates to the technical field of fan equipment and comprises a handle and an air duct, and a first connecting piece is fixedly arranged on the peripheral surface of the air duct; the first connecting piece body is of a flat structure, and the cross section is circular. A clamping frame is arranged on one side face of the first connecting piece, and clamping positions are arranged on the inner circumferential wall of the clamping frame. A concave connecting groove is formed in the tail end of the first handle, and clamping parts are formed on the two sides of the connecting groove. A protruding annular pop-up frame is fixedly arranged on one side face of the connecting groove, a clamping block is arranged on the peripheral wall of the pop-up frame in a protruding mode, and the tail end of the clamping block is an arc face. During assembly, the first connecting piece is matched with the connecting groove, and the clamping parts are clamped on the two sides of the first connecting piece; the pop-up frame is embedded into a cavity area in the middle of the clamping frame, and the clamping blocks are matched with the clamping positions. Compared with an existing hair dryer, the folding hair dryer can be folded at various angles, a user can conveniently store the folding hair dryer, folding hand feeling feedback can be provided, and the folding portion is not prone to loosening.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan equipment technical field, concretely relates to a multi -card position's folding fan. BACKGROUND

[0002] Hair dryer is a kind of conventional but indispensable household appliance in daily life. It not only can quickly dry hair, reduce the discomfort brought by wet hair, but also can create straight hair, curly hair or fluffy and other various fashion styles for hair through adjusting temperature and air speed, with various hairdressing tools. In addition, the hot air function of hair dryer is also applicable to quickly dry wet clothes, shoes or defog bathroom mirror, or even gently dry some small appliances when needed. Whether at home or on the road, the convenience and practicality of hair dryer greatly improve our quality of life.

[0003] Conventional hair dryer is composed of air duct and handle, air duct is equipped with heating wire and fan for quickly making normal temperature air or hot air, and user can hold handle to make air outlet hole of air duct aim at target to blow air. The air duct and handle of most hair dryers are fixed perpendicularly in structure, which has little influence when used at home, but the hair dryer with such structure is very inconvenient to carry when going out, especially the overall structure occupies large space, is inconvenient to store and also affects user to carry other articles. The patent document with announcement number CN218219459U provides a folding hair dryer, which is provided with spherical connecting piece between air duct and handle. One end of spherical connecting piece is fixedly connected with air duct, and the other end is provided with spherical part and is hingedly connected with handle. The end of handle is provided with cavity matched with spherical part, and half opening facing forward is arranged at the cavity. Through the arrangement of spherical part and half opening, handle and air duct can be folded at limited angle to reduce space occupation. But the scheme still has obvious defects. On the one hand, the arrangement of half opening limits folding direction, and folding at most 90 degrees in one direction of air duct is almost the only way, which cannot meet the folding demand of more angle for user. On the other hand, air duct and handle are hingedly connected by spherical part, which is equivalent to stepless adjustment structure, and the structure is prone to looseness after being turned for many times, so that air duct and handle are difficult to be fixed at specific angle, which affects use experience.

[0004] Therefore, it is urgent to provide a multi -card position's folding fan to solve the above technical problems. SUMMARY

[0005] In view of the problems in the related art, the utility model provides a multi -card position's folding fan, which can realize folding at multiple angles, is convenient for user to store, and can provide folding feeling feedback, and folding position is not prone to looseness.

[0006] The utility model is implemented as follows:

[0007] A multi-card-position folding fan includes a handle and a fan barrel, the outer circumferential surface of the fan barrel is fixedly provided with a first connecting piece; the main body of the first connecting piece is a flat structure, and the cross section is circular; one side surface of the first connecting piece is provided with a protruding clamping frame, and a clamping position recessed to the outside is arranged along the inner circumferential wall of the clamping frame;

[0008] One end of the handle is provided with a concave connecting groove, and the two sides of the connecting groove are formed into clamping portions; a circular ring-shaped elastic frame is fixedly arranged on one side surface of the handle at the connecting groove, a clamping block is protrusively arranged along the outer circumferential wall of the elastic frame, and the end of the clamping block is an arc surface;

[0009] When assembled, the first connecting piece is matched with the connecting groove, the clamping portions are clamped on the two sides of the first connecting piece, the elastic frame is embedded in the cavity region in the middle of the clamping frame, and the clamping block is matched with the clamping position; a fixing shaft is further arranged, the fixing shaft passes through the center of the clamping portion, the center of the first connecting piece and the center of the elastic frame, and the fixing is completed.

[0010] When rotating, under the action of an external force, the elastic frame rotates around the fixing shaft, the clamping block extrudes the clamping frame, until the next clamping position is entered, so that the handle is folded and rotated relative to the fan barrel around the fixing shaft, and is fixed at a set angle. On the surface, the connecting groove of the handle rotates relative to the first connecting piece.

[0011] The rotation angle of the handle can cover 180°, the more the number of clamping positions is, the more the folding and rotating angles are, and the user is facilitated to store the fan; when the clamping block enters the clamping position, the elastic deformation and sound change of the elastic frame provide exact positioning feedback for the user.

[0012] Alternatively, a groove can be arranged on one side surface of the first connecting piece, and a plurality of clamping positions are uniformly arranged on the inner circumferential side of the groove.

[0013] As a further optimization of the above scheme, the surface of the clamping position is a first arc surface, the transition surface between adjacent clamping positions is a second arc surface, the curvature of the first arc surface is greater than that of the second arc surface, and a round corner is arranged between the first arc surface and the second arc surface.

[0014] The clamping position with the first arc surface has a better matching effect with the fixing protrusion; the arrangement of the round corner and the second arc surface can make the deformation of the clamping frame more smooth.

[0015] As a further optimization of the above scheme, if the number of clamping positions is three, one of the clamping positions and the two adjacent clamping positions form a central angle of 90°.

[0016] The card position is regarded as a point of the circular edge, two card positions are connected with the center of the circle respectively, two lines formed by the connection are intersected, and a central angle is formed. Adjacent two 90° central angles are arranged, that is, the central angle between the remaining two card positions is 180°, so that the three card positions form a T-shaped distribution. The three card positions can satisfy the rotation folding effect of 0°, 90° and 180° between the air cylinder and the handle.

[0017] As a further optimization of the above scheme, the number of the card positions is even, and at least four; the plurality of card positions are uniformly distributed in a circle, that is, the central angle between adjacent two card positions is equal;

[0018] The card block includes two, and the central angle between the two card blocks is 180°, that is, on the elastic frame, the two card blocks are oppositely arranged.

[0019] The two oppositely arranged card blocks can improve the rotation resistance without affecting the rotation, which is equivalent to improving the fastening effect of the card block clamped in the card position, so that the air cylinder and the handle are not easy to loosen. Even number of card positions are applied in cooperation with two card blocks.

[0020] As a further optimization of the above scheme, the handle is a hollow cavity on both sides of the connecting groove, that is, in the clamping part, and a fixed slot is arranged at one of the cavities;

[0021] The elastic frame and the handle body are detachably connected; a second connecting piece is arranged in the clamping part; the second connecting piece is a plate-shaped structure, one side of which is fixedly connected with the elastic frame, and the other side is provided with a protruding limiting protrusion;

[0022] The limiting protrusion and the fixed slot both include at least two; the limiting protrusion and the fixed slot are matched with each other.

[0023] The limiting protrusion and the fixed slot enable the handle body and the elastic frame to be detachably fixedly connected.

[0024] As a further optimization of the above scheme, a plurality of uniformly distributed protrusions are arranged along one side of the edge of the elastic frame; a plurality of circumferentially uniformly distributed insertion holes are arranged on one side of the second connecting piece; the protrusions and the insertion holes are matched with each other to realize the detachable connection of the second connecting piece and the elastic frame, and can limit the deformation degree of the elastic frame to avoid complete deformation.

[0025] As a further optimization of the above scheme, the elastic frame and the card block are made of the same or different materials; an injection hole is arranged along the outer peripheral wall of the elastic frame, and the card block formed by secondary injection is arranged at the injection hole.

[0026] The injection hole is arranged to facilitate the production and processing of the elastic frame and the clamping block, and materials with different properties can be selected to adapt to the cooperation of the clamping block and the deformation of the elastic frame.

[0027] As a further optimization of the above scheme, a first threading hole is arranged on the outer circumferential surface of the first connecting piece; when the first connecting piece is fixedly connected with the air duct, the first threading hole communicates with the internal cavity of the air duct.

[0028] The handle comprises a shell, the inside of the shell is a cavity for mounting electronic components and circuits, and the clamping part is located at the end of the shell.

[0029] The first threading hole is used for wiring communication between the internal cavity of the air duct and the handle.

[0030] As a further optimization of the above scheme, the shell is further provided with a second threading hole in the region of one of the clamping parts; the first connecting piece is open on the side close to the second threading hole; when the first connecting piece is connected with the handle, the second threading hole communicates with the first connecting piece.

[0031] The arrangement of the second threading hole and the opening can realize wiring without affecting the rotation and folding functions of the air duct and the handle, and can avoid line pulling and winding.

[0032] As a further optimization of the above scheme, the shell is provided with a detachable wire winding baffle; the wire winding baffle is arranged in the internal cavity of the shell and located at the bottom of the clamping part; the wire winding baffle is in the shape of a spherical arc surface, comprising an adaptive part arranged in the middle and an isolation part on both sides of the adaptive part.

[0033] After assembly, the adaptive part forms the bottom side of the connecting groove and is adapted to the circumferential surface of the first connecting piece; the isolation part extends to abut the inner side wall of the shell; one of the isolation parts is provided with the second threading hole.

[0034] The arrangement of the wire winding baffle can further avoid line pulling and winding, ensure smooth movement of the hinge, and at the same time, all the lines are completely hidden in the entire fan and no gap is exposed.

[0035] The beneficial effects are as follows:

[0036] The utility model provides a kind of multi-card position's folding fan, first connecting piece is set between the fan drum and handle of fan, realize the hinging of both;By being provided with the card frame with multiple card positions on first connecting piece, the elastic frame with protruding clamping block is set on handle, and both are connected in cooperation;When fan drum and handle rotate relatively, clamping block removes from a card position, extrude card frame, until clamping block is inserted into next card position;The elastic deformation and sound change generated by card frame provide exact positioning feedback to user.Card position is multiple, the angle of rotatable folding is more abundant, facilitate user to store;And after the cooperation of clamping block and card position, under the action of no external force, can make fan drum and handle firm fixation, not loose. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is overall structure schematic diagram of a kind of multi-card position's folding fan provided by the utility model embodiment;

[0038] Figure 2 It is Figure 1 explosion view;

[0039] Figure 3 it is the schematic diagram of first connecting piece provided by the utility model embodiment in being provided with card frame;

[0040] Figure 4 it is the structure schematic diagram of card frame, elastic frame cooperation provided by the utility model embodiment;

[0041] Figure 5 it is the explosion structure schematic diagram of elastic frame and second connecting piece provided by the utility model embodiment;

[0042] Figure 6 it is the structure schematic diagram of second connecting piece in one side provided by the utility model embodiment;

[0043] Figure 7 it is the structure schematic diagram of winding baffle provided by the utility model embodiment;

[0044] Figure 8 it is the partial structure schematic diagram of shell provided by the utility model embodiment;

[0045] Figure 9 it is the cross section schematic diagram when shell and winding baffle cooperation provided by the utility model embodiment.

[0046] Reference signs:

[0047] 1, handle;11, shell;12, winding baffle;121, adaptive part;122, isolation part;123, second threading hole;13, clamping part;131, fixed slot;14, connecting groove;

[0048] 2, fan drum;

[0049] 3. First connecting piece; 31. First threading hole;

[0050] 4. Card frame; 41. Card position; 42. Transition surface;

[0051] 5. Gap;

[0052] 6. Spring frame; 61. Clamping block; 62. Protrusion; 63. Injection hole;

[0053] 7. Fixed axis;

[0054] 8. Second connecting member; 81. Limiting protrusion; 82. Socket. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0056] like Figures 1 to 9 As shown, this embodiment provides a multi-position folding fan, including a handle 1 and a fan tube 2. A first connector 3 is fixedly mounted on the outer circumference of the fan tube 2. The first connector 3 is a flat structure with a circular cross-section. In this embodiment, a first threading hole 31 is provided on the outer circumference of the first connector 3. When the first connector 3 is fixedly mounted to the fan tube 2, the first threading hole 31 connects to the inner cavity of the fan tube 2. The first threading hole 31 is used for wiring between the interior of the fan tube 2 and the interior of the handle 1.

[0057] A raised locking frame 4 is fixedly mounted on one side of the first connector 3. An outwardly recessed locking position 41 is provided along the inner circumference of the locking frame 4. In this embodiment, the number of locking positions 41 is an even number, at least four. These locking positions 41 are evenly distributed around the circumference, meaning that the central angles between two adjacent locking positions 41 are equal. Considering a locking position 41 as a point on the edge of a circle, the intersection of two lines formed by connecting two locking positions 41 with the center of the circle forms a central angle. In this embodiment, there are eight locking positions 41, each with a central angle of 45°.

[0058] In this embodiment, the surface of the locking position 41 is a first arc surface, and the transition surface 42 between adjacent locking positions 41 is a second arc surface; the curvature of the first arc surface is greater than the curvature of the second arc surface, and there is a rounded corner between the first arc surface and the second arc surface.

[0059] The handle 1 is provided with a concave connecting groove 14 at one end, and the two sides of the connecting groove 14 are formed into clamping portions 13; the handle 1 comprises a shell 11, the inside of the shell 11 is a cavity for installing electronic components and circuits, and the clamping portions 13 are located at the end of the shell 11.

[0060] In the embodiment, the shell 11 is provided with a detachable winding baffle 12; the winding baffle 12 is arranged in the inner cavity of the shell 11 and is located at the bottom of the connecting groove 14 and the clamping portion 13; the winding baffle 12 is in the shape of a spherical arc surface as a whole, comprises an adapting portion 121 arranged in the middle and isolation portions 122 on both sides of the adapting portion 121; the isolation portions 122 are correspondingly located below the clamping portions 13.

[0061] After the shell 11 and the winding baffle 12 are assembled, the adapting portion 121 is formed into the bottom side of the connecting groove 14 and is adapted to the peripheral side of the first connecting piece 3; the isolation portions 122 extend to abut against the inner side wall of the shell 11; one of the isolation portions 122 is provided with a second wire hole 123.

[0062] In the embodiment, the first connecting piece 3 is open at the side close to the second wire hole 123; when the first connecting piece 3 is connected with the handle 1, the second wire hole 123 is in communication with the first connecting piece 3.

[0063] The arrangement of the winding baffle 12, the second wire hole 123 and the opening can realize wire routing without affecting the rotating and folding functions of the fan barrel 2 and the handle 1, avoid wire pulling and winding, ensure smooth movement of the hinge, and at the same time, all the wires are completely hidden in the entire fan and are not exposed through any gap.

[0064] The handle 1 is fixedly provided with a circular ring-shaped elastic frame 6 at one side of the connecting groove 14. Two injection molding holes 63 are arranged along the outer peripheral wall of the elastic frame 6, and clamping blocks 61 formed by secondary injection molding are arranged at the injection molding holes 63. Four convex portions 62 are arranged along one side of the edge of the elastic frame 6 and are uniformly distributed. The directions of the convex portions 62 and the clamping blocks 61 are perpendicular to each other.

[0065] In the embodiment, the elastic frame 6 and the handle 1 main body are detachably connected; the handle 1 is hollow at both sides of the connecting groove 14, i.e. in the clamping portions 13, and two fixed insertion grooves 131 are arranged in one of the cavities;

[0066] The clamping portions 13 are provided with a detachable second connecting piece 8; the second connecting piece 8 is in the shape of a plate, one side of the second connecting piece 8 is provided with two protruding limiting protrusions 81; and four insertion holes 82 are uniformly distributed along the circumference of the second connecting piece 8.

[0067] When the elastic frame 6 is assembled, the limiting protrusions 81 and the fixed insertion grooves 131 are matched with each other, and the convex portions 62 and the insertion holes 82 are matched with each other.

[0068] In the embodiment, the clamping blocks 61 are two in number, and the central angle between the two clamping blocks 61 is 180°, that is, on the clamping frame 6, the two clamping blocks 61 are oppositely arranged.

[0069] The two oppositely arranged clamping blocks 61 can improve the rotating resistance without affecting the rotation, which is equivalent to improving the fastening effect of the clamping blocks 61 in the clamping positions 41, so that the fan tube 2 and the handle 1 are not easy to loosen. An even number of clamping positions 41 are used in cooperation with the two clamping blocks 61.

[0070] The end of the clamping block 61 is an arc surface.

[0071] The clamping position 41 with the first arc surface has a better fitting effect with the fixed protrusion; the setting of the rounded corner and the second arc surface can make the deformation of the clamping frame 4 more smooth. The arc surface of the clamping block 61 can also make the rotation process more smooth.

[0072] When the fan is assembled as a whole, the first connecting piece 3 is matched with the connecting groove 14, the clamping part 13 is clamped on both sides of the first connecting piece 3; the clamping frame 6 is embedded in the cavity area in the middle of the clamping frame 4, and the clamping block 61 is matched with the clamping position 41; further comprising a fixed shaft 7, the fixed shaft 7 passes through the center of the clamping part 13, the center of the first connecting piece 3, and the center of the clamping frame 6, and the fixing is completed.

[0073] When rotating, under the action of external force, the clamping frame 6 rotates around the fixed shaft 7, the clamping block 61 presses the clamping frame 4 until it enters the next clamping position 41, so that the handle 1 rotates and folds relative to the fan tube 2 around the fixed shaft 7, and is fixed at a set angle. On the surface, the connecting groove 14 of the handle 1 rotates relative to the first connecting piece 3.

[0074] The rotation angle of the handle 1 can cover 180°, the more the number of clamping positions 41, the more the angle of rotation and folding, which is convenient for users to store the fan; when the clamping block 61 enters the clamping position 41, the elastic deformation and sound change of the clamping frame 4 provide accurate positioning feedback for the user.

[0075] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of explanation and do not constitute any limitation on the present application.

Claims

1. A multi-card position folding fan comprising a handle and a cylinder, characterized in that: The outer peripheral surface of the air duct is fixedly provided with a first connecting piece; the main body of the first connecting piece is flat and the cross section is circular; one side of the first connecting piece is provided with a protruding clamping frame, and a clamping site recessed to the outside is arranged along the inner peripheral wall of the clamping frame; One end of the handle is provided with a concave connecting groove, and the two sides of the connecting groove are formed into clamping portions; a circular ring-shaped elastic frame is fixedly arranged on one side of the connecting groove, a clamping block is protrusively arranged along the outer peripheral wall of the elastic frame, and the end of the clamping block is an arc surface; During assembly, the first connecting piece is matched with the connecting groove, the clamping portions are clamped on the two sides of the first connecting piece, the elastic frame is embedded in the cavity region in the middle of the clamping frame, and the clamping block is matched with the clamping site; further comprising a fixing shaft, the fixing shaft passes through the center of the clamping portion, the center of the first connecting piece and the center of the elastic frame, and the fixing is completed.

2. A multi-card, folding fan as claimed in claim 1, wherein: The surface of the clamping site is a first arc surface, and the transition surface between adjacent clamping sites is a second arc surface; the curvature of the first arc surface is greater than that of the second arc surface, and the first arc surface and the second arc surface are circular.

3. A multi-card, folding fan as in Claim 1, further characterized by: The number of clamping sites is at least three; if the number of clamping sites is three, one of the clamping sites and the two adjacent clamping sites form a central angle of 90°.

4. The multi-card position folding fan of claim 1, wherein: The number of clamping sites is an even number and at least includes four; a plurality of clamping sites are uniformly distributed in a circle; The number of clamping blocks is two, and the central angle between the two clamping blocks is 180°.

5. The multi-card position folding fan of claim 1, wherein: The handle is hollow in the two sides of the connecting groove, i.e. in the clamping portions, and a fixed insertion slot is arranged in one of the cavities; The elastic frame and the handle main body are detachably connected; a second connecting piece is arranged in the clamping portion; the second connecting piece is a plate structure, one side of which is fixedly connected with the elastic frame, and the other side is provided with a protruding limiting protrusion; The limiting protrusion and the fixed insertion slot each include at least two; the limiting protrusion and the fixed insertion slot are matched with each other.

6. A multi-card, folding fan as in Claim 5, wherein: A plurality of uniformly distributed protrusions are arranged along one side of the edge of the elastic frame; one side of the second connecting piece is provided with a plurality of circularly uniformly distributed insertion holes; the protrusions and the insertion holes are matched with each other.

7. The multi-card, folding fan of claim 1, wherein: The elastic frame and the clamping block are made of the same or different materials; an injection hole is arranged along the outer peripheral wall of the elastic frame, and the clamping block formed by secondary injection is arranged at the injection hole.

8. The multi-card, folding fan of claim 1, wherein: A first threading hole is arranged on the outer peripheral surface of the first connecting piece; when the first connecting piece is fixedly connected with the air duct, the first threading hole communicates with the internal cavity of the air duct; The handle includes an outer shell, the inner part of the outer shell is a cavity, and the outer shell is used for mounting electronic components and circuits; the clamping portions are located at the ends of the outer shell.

9. A multi-cardan, foldable fan as defined in claim 8, wherein: The outer shell is further provided with a second threading hole in one of the clamping portion regions; one side of the first connecting piece is an opening close to the second threading hole; when the first connecting piece is connected with the handle, the second threading hole communicates with the first connecting piece.

10. A multi-card, folding fan as in Claim 9, wherein: The outer shell is provided with a detachable winding baffle; the winding baffle is arranged in the inner cavity of the outer shell and located at the bottom of the connecting groove and the clamping portion; the winding baffle is a whole spherical arc surface, including an adaptive portion arranged in the middle and isolation portions on both sides of the adaptive portion; After assembly, the adapter part forms the bottom side of the connecting groove and is adapted to the peripheral side of the first connecting piece; the isolation part extends to abut against the inner side wall of the outer shell; one of the isolation parts is provided with the second threading hole.

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