Folding blowing equipment

Abstract

The invention discloses folding air blowing equipment. The folding air blowing equipment comprises a first barrel body, a second barrel body and a pivoting structure, the pivoting structure is pivotally connected with the first barrel and the second barrel, so that the first barrel and the second barrel can rotate relatively, and the central axis of the first barrel and the central axis of the second barrel are located on the same plane in the relative rotation process of the first barrel and the second barrel; the first barrel body and the second barrel body have a parallel folding state, a stretching state in which one end is opposite to the other end and a bending state on the stroke of relative rotation of the first barrel body and the second barrel body, and in the bending state, an included angle is formed between the central axis of the first barrel body and the central axis of the second barrel body, and the included angle is an inferior angle or a reflex angle. According to the technical scheme, the folding air blowing equipment is convenient to store, the adjustable range of the first barrel and the adjustable range of the second barrel are larger, the use requirements of different users can be better met, use is more convenient, and the user experience is better.

Description

[0001] This application claims priority to the prior patent application filed on December 23, 2024, with application number 2024118998853 and invention name, namely, folding blowing device. Technical Field

[0002] The invention relates to the technical field of household appliances, and in particular to a folding hair-drying device. Background Art

[0003] Blowing equipment such as hair dryers are widely used in daily life. Hair dryers generally include a handle and a barrel. The handle is used for users to hold, and the barrel is used to blow out the heated airflow. Traditional hair dryers are available in two forms: non-foldable and foldable. Non-foldable hair dryers are generally "L"-shaped, so that the relative positions of the handle and the barrel are fixed, but they are large in size and not easy to store; foldable hair dryers can be in an "L"-shaped working state, or they can be folded from the "L" state so that the handle and the barrel are close together. The rotation angle of traditional hair dryers is limited, and generally only has these two states, which cannot meet the needs of more usage scenarios. Summary of the invention

[0004] In view of this, the present invention aims to solve the problem that the rotation angle of the traditional hair dryer is limited and cannot meet the needs of more usage scenarios.

[0005] In order to achieve the above object, the present invention provides a folding and blowing device, comprising:

[0006] A first cylinder and a second cylinder;

[0007] A pivot structure, pivotally connecting the first cylinder and the second cylinder, so that the first cylinder and the second cylinder can rotate relative to each other, and during the relative rotation of the first cylinder and the second cylinder, the central axis of the first cylinder and the central axis of the second cylinder are located on the same plane;

[0008] During their relative rotation, the first cylinder and the second cylinder have a folded state in which they are arranged in parallel, a stretched state in which one end is opposite to the other end, and a bent state. In the bent state, the central axis of the first cylinder and the central axis of the second cylinder are arranged at an angle, and the angle is a minor angle or a major angle.

[0009] Optionally, the first cylinder and the second cylinder can rotate back and forth between the folded state, the bent state, and the extended state in sequence, so that the central axis of the first cylinder and the central axis of the second cylinder have an angle θ, wherein the angle θ is 0 to 180°.

[0010] Optionally, in the folded state, the first side of the first cylinder and the first side of the second cylinder are parallel to and / or abut against each other.

[0011] Optionally, in the extended state, the first cylinder and the second cylinder are coaxially arranged, and the angle θ=180°.

[0012] Optionally, the first cylinder has a first end and a second end opposite to each other along its axial direction, and the second cylinder has a first end and a second end opposite to each other along its axial direction. When in the extended state, the first end of the first cylinder and the first end of the second cylinder are connected relative to each other, the second end of the first cylinder is set in a direction facing away from the second cylinder, and the second end of the second cylinder is set in a direction facing away from the first cylinder, and the first end and the second end of the first cylinder and the first end and the second end of the second cylinder are all on the same straight line.

[0013] Optionally, the first cylinder and the second cylinder have the same length along their respective axial directions; and / or,

[0014] The first barrel and the second barrel are both cylindrical and have the same diameter.

[0015] Optionally, the pivot structure comprises:

[0016] Axis body;

[0017] A first rotating part, rotatably sleeved on the outer side of the shaft body and connected to the first cylinder;

[0018] A second rotating part, rotatably sleeved on the outer side of the shaft body and connected to the second cylinder;

[0019] Wherein, the first rotating part and the second rotating part can rotate relatively.

[0020] Optionally, the first rotating part and the second rotating part are arranged side by side along the axial direction of the shaft body; or,

[0021] The first rotating part and the second rotating part are nested with each other.

[0022] Optionally, the first rotating part includes a first rotating sleeve, which is arranged at one end of the first cylinder along its axial direction; the second rotating part includes a second rotating sleeve, which is arranged at one end of the second cylinder along its axial direction and is arranged side by side with the first rotating sleeve along the axial direction of the shaft body.

[0023] Optionally, the first rotating sleeve and the first cylinder are integrally arranged; and / or,

[0024] The second rotating sleeve and the second cylinder are integrally arranged.

[0025] Optionally, the second cylinder comprises a first half shell and a second half shell connected to each other;

[0026] The second rotating sleeve includes a first sleeve body and a second sleeve body connected to each other. The first sleeve body is connected to the first half shell, and the second sleeve body is connected to the second half shell. The first sleeve body and the second sleeve body are rotatably sleeved on both ends of the first rotating sleeve along its axial direction.

[0027] Optionally, the shaft portion connects the first sleeve and the second sleeve, so that the first rotating sleeve is rotatably clamped between the first sleeve and the second sleeve, and a plurality of air holes are provided on the first rotating sleeve.

[0028] Optionally, an air outlet hole is provided on the first cylinder, an air inlet hole is provided on the second cylinder, and an air passage is provided on the pivot structure, wherein the air passage connects the air inlet hole and the air outlet hole.

[0029] Optionally, the folding and blowing device further comprises a circuit structure, wherein the circuit structure is disposed in the second cylinder, and along the air flow direction, the circuit structure is located in a connecting channel between the air inlet hole and the air passage.

[0030] The technical solution provided by the present invention has the following beneficial effects:

[0031] The folding hair-drying device provided by the present invention comprises a first cylinder, a second cylinder and a pivot structure, wherein the first cylinder and the second cylinder are connected by the pivot structure so that the first cylinder and the second cylinder can rotate relative to each other, thereby adjusting the angle between the first cylinder and the second cylinder, so that the first cylinder and the second cylinder can be in different angle positions for operation, thereby making the operation state of the folding hair-drying device more diverse; when the first cylinder and the second cylinder are in a folded state arranged in parallel, the volume of the folding hair-drying device is smaller and more convenient to store; when the first cylinder and the second cylinder are in an extended state with one end facing away from the other end, the first cylinder and the second cylinder are in an extended state with one end facing away from the other end. It can be fully extended, with a larger operating distance and better ability to adjust the air outlet direction; when in a bent state, the first cylinder and the second cylinder can work in an "L"-shaped or "V"-shaped state to meet the use requirements of special use environments. The first cylinder and the second cylinder have a larger adjustable range, and thus can better meet the various use requirements of different users, making it more convenient to use and providing a better user experience; and, during the relative rotation of the first cylinder and the second cylinder, the central axis of the first cylinder and the central axis of the second cylinder are always located on the same plane, making it easier and more labor-saving for the first cylinder to rotate, and providing a better feel for users when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on the structures shown in these drawings.

[0033] Figure 1 A schematic structural diagram of an embodiment when the folding hair dryer device provided by the present invention is in a folded state;

[0034] Figure 2 For Figure 1 A schematic cross-sectional structural diagram of the folding hair dryer device when it is in a folded state as described above;

[0035] Figure 3 For Figure 1 A schematic structural diagram of the folding hair dryer device when it is in a bent state as described above;

[0036] Figure 4 For Figure 3 A schematic structural diagram of another perspective of the folding hair dryer device when it is in a bent state as described above;

[0037] Figure 5 For Figure 4 A schematic cross-sectional structural diagram of the folding hair dryer device when it is in a bent state as described above;

[0038] Figure 6 For Figure 4 A schematic cross-sectional structural diagram of another folding hair dryer device when it is in a bent state as described above;

[0039] Figure 7 For Figure 4 A schematic cross-sectional structural diagram of still another folding hair dryer device when it is in a bent state as described above;

[0040] Figure 8 For Figure 3 A schematic exploded structural diagram of the folding hair dryer device when it is in a bent state as described above;

[0041] Figure 9 For Figure 1 A schematic structural diagram of the folding hair dryer device when it is in an extended state as described above;

[0042] Figure 10 For Figure 9 A schematic structural diagram of another perspective of the folding hair dryer device when it is in an extended state as described above;

[0043] Figure 11 For Figure 9Schematic structural diagram of still another perspective of the folding hair dryer device (in the extended state) described in

[0044] Figure 12 is Figure 11 Schematic cross-sectional structural diagram of the folding hair dryer device (in the extended state) described in

[0045] Figure 13 is Figure 9 Exploded structural diagram of the folding hair dryer device (in the extended state) described in

[0046] Explanation of reference numerals in the drawings:

[0047] 100 - folding hair dryer device; 1 - first cylinder; 11 - air outlet hole; 2 - second cylinder; 21 - air inlet hole; 22 - first half shell; 23 - second half shell; 3 - pivoting structure; 31 - first rotating part; 311 - first rotating sleeve; 312 - air passing hole; 32 - second rotating part; 321 - second rotating sleeve; 3211 - first sleeve body; 3212 - second sleeve body; 33 - shaft body part; 331 - locking shaft; 332 - end cover; 333 - pressing sleeve; 4 - circuit structure.

[0048] For the realization of the object of the present invention, its functional characteristics and excellent effects, further explanations will be given below in conjunction with specific embodiments and the accompanying drawings. Specific embodiments

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that if there are directional indications involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] The present invention provides a folding blowing device 100, specifically, please refer to Figure 1 , Figure 3 and Figure 9 As shown, in this embodiment, the folding blowing device 100 includes a first cylinder 1, a second cylinder 2, and a pivot structure 3; the pivot structure 3 pivotally connects the first cylinder 1 and the second cylinder 2, so that the first cylinder 1 and the second cylinder 2 can rotate relative to each other, so as to have a folded state in which they are arranged in parallel, a stretched state in which one end is opposite to the other end, and a bent state. In the bent state, the central axis of the first cylinder 1 and the central axis of the second cylinder 2 are arranged at an angle, and the angle is a minor angle or a major angle.

[0053] In this embodiment, the first barrel 1 and the second barrel 2 are connected by the pivot structure 3, so that the first barrel 1 and the second barrel 2 can rotate relative to each other, so that the angle between the first barrel 1 and the second barrel 2 can be adjusted, so that the first barrel 1 and the second barrel 2 can be in different angle positions for operation, so that the working state of the folding hair-drying device 100 is more diverse; when the first barrel 1 and the second barrel 2 are in a folded state arranged in parallel, the volume of the folding hair-drying device 100 is smaller and more convenient to store; when the first barrel 1 and the second barrel 2 are in an extended state with one end facing away from the other end, the first barrel 1 and The second cylinder 2 can be fully extended, with a larger operating distance and better ability to adjust the air outlet direction; when in a bent state, the central axis of the first cylinder 1 and the central axis of the second cylinder 2 are set at an angle, and the angle is a minor angle (greater than 0° and less than 180°) or a superior angle (greater than 180° and less than 360°). The first cylinder 1 and the second cylinder 2 can work in an "L" shape or a "V" shape to meet the requirements of special usage environments. The first cylinder 1 and the second cylinder 2 have a larger adjustable range, so they can better meet the various usage requirements of different users, are more convenient to use, and provide a better user experience.

[0054] Among them, the folding hair drying device 100 can be set as a hair dryer or a curling iron. One of the first cylinder body 1 and the second cylinder body 2 can be set as the air duct, and the other can be set as the handle part. It is set that the first cylinder body 1 is the air duct and the second cylinder body 2 is the handle part. An air outlet hole 11 is provided on the first cylinder body 1. It can be understood that the air inlet hole 21 can be arranged on the first cylinder body 1, and / or the second cylinder body 2, and / or the pivoting structure 3, so that after the air flow enters the first cylinder body 1, it can be blown out from the air outlet hole 11 for the user to use.

[0055] It can be understood that the folding hair drying device 100 can also include a heating component and a circuit structure 4. The heating component is electrically connected through the circuit structure 4, and the operation of the heating component can be controlled. Among them, the heating component and the circuit structure 4 can be both arranged in the same cylinder body, or can be respectively arranged in the first cylinder body 1 and the second cylinder body 2.

[0056] Preferably, the heating component is arranged in the first cylinder body 1, the circuit structure 4 is arranged in the second cylinder body 2, the air inlet hole 21 is arranged on the second cylinder body 2, and an air passing channel is provided on the pivoting structure 3. The air passing channel communicates the air inlet hole 21 and the air outlet hole 11, so that the first cylinder body 1 and the second cylinder body 2 are connected. In the direction of the air flow, the circuit structure 4 is located in the communication channel between the air inlet hole 21 and the air passing channel. So that after the cold air flow enters the second cylinder body 2 from the air inlet hole 21, it can flow through the circuit structure 4 and then enter the first cylinder body 1 through the air passing channel, and after being heated by the heating structure, it flows out of the first cylinder body 1 from the air outlet hole 11. With such an arrangement, on the one hand, the cold air flow can flow through the circuit structure 4 to dissipate heat from the circuit structure 4, and on the other hand, the hot air flow around the circuit structure 4 can be brought into the first cylinder body 1 to improve the heating efficiency and save more heating energy consumption.

[0057] By adjusting the relative angle between the first cylinder body 1 and the second cylinder body 2, the folding hair drying device 100 can be in different working states to meet different usage requirements of users. Preferably, the first cylinder body 1 and the second cylinder body 2 can rotate reciprocally between the folded state, the bent state, and the extended state in sequence, so that there is an included angle θ between the central axis of the first cylinder body 1 and the central axis of the second cylinder body 2. Among them, when the bending angle is a concave angle, preferably the included angle θ is 0 to 180°; when the bending angle is a convex angle, preferably the included angle θ can be 0 to 360°. The adjustment of the included angle between the first cylinder body 1 and the second cylinder body 2 can drive the first cylinder body 1 and / or the second cylinder body 2 to rotate through a driving mechanism, making the conversion of various working states of the folding hair drying device 100 more intelligent; or, the adjustment of the included angle between the first cylinder body 1 and the second cylinder body 2 can be manually adjusted, with a simpler structure and lower cost.

[0058] It can be understood that there are many ways for the first cylinder 1 and the second cylinder 2 to be relatively rotatably connected. In one embodiment, the rotation plane of the first cylinder 1 (i.e., the plane through which the central axis of the first cylinder 1 rotates) and the rotation plane of the second cylinder 2 (i.e., the plane through which the central axis of the second cylinder 2 rotates) can be set to be non-coplanar. For example, the rotation plane of the first cylinder 1 and the rotation plane of the second cylinder 2 are arranged in parallel and / or intersecting, so that the first cylinder 1 and the second cylinder 2 are offset in the rotation direction, thereby better achieving large-angle rotation. And / or, one of the first cylinder 1 and the second cylinder 2 can rotate self, and the angle between the two is changed by the relative self-rotation of the first cylinder 1 and the second cylinder 2.

[0059] Preferably, during the relative rotation of the first cylinder 1 and the second cylinder 2, the central axes of the first cylinder 1 and the second cylinder 2 are always located in the same plane, and the support between the first cylinder 1 and the second cylinder 2 is always in a centered state during the rotation process. Therefore, when holding the second cylinder 2 and rotating the first cylinder 1, the first cylinder 1 will not tilt to one side, making the first cylinder 1 easier and more labor-saving to rotate, and the user will have a better hand feeling when using it. Moreover, it will not occupy too much space in the axial direction of the pivot structure 3, and the volume of the folding hair dryer 100 is more compact.

[0060] Wherein, the first cylinder 1 and the second cylinder 2 have a folded state arranged in parallel. Here, parallel means that the central axes of the first cylinder 1 and the second cylinder 2 are substantially parallel, and most of the radial projections of the first cylinder 1 and the second cylinder 2 overlap. Therefore, when in the folded state, the overall length of the folding hair dryer 100 (i.e., along the axial direction of each cylinder) is shorter, and the space occupied during storage is smaller.

[0061] Preferably, the lengths of the first cylinder 1 and the second cylinder 2 along their respective axes are substantially the same. When in the folded state, the two ends of the first cylinder 1 and the second cylinder 2 are aligned, so the storage is more regular and more compact.

[0062] The shapes and sizes of the first cylinder 1 and the second cylinder 2 may not be specifically limited. For example, they can be square, polygonal or irregular, etc. Preferably, both the first cylinder 1 and the second cylinder 2 are cylindrical and have the same diameter, so that when the folding hair dryer 100 is in the folded state and the extended state, the external shape structure of the folding hair dryer 100 is more symmetrical and more beautiful, and the holding comfort is also better.

[0063] Furthermore, combining Figure 1 and Figure 2As shown, when in the folded state, the first side of the first cylinder 1 and the first side of the second cylinder 2 are parallel and / or in contact with each other. Among them, the first cylinder 1 and the second cylinder 2 can be partially in contact or fully adhered. And preferably, the included angle θ = 0°. So that when in the folded state, there is almost no gap between the first cylinder 1 and the second cylinder 2, it is closer, thus the volume is smaller and it is easier to store, which is convenient for carrying.

[0064] Moreover, the first cylinder 1 and the second cylinder 2 also have a stretched state where one end is opposite and the other end is away from each other, so that one end of the first cylinder 1 and one end of the second cylinder 2 can be better connected, while the other end of the first cylinder 1 and the other end of the second cylinder 2 are away from each other. The included angle between the central axis of the first cylinder 1 and the central axis of the second cylinder 2 is in an obtuse angle and approaches a flat angle state. Among them, the air outlet hole 11 can be arranged on the circumferential side wall of the first cylinder 1 or at the end of the first cylinder 1. When the air outlet is also arranged at the end of the first cylinder 1, when the user holds the second cylinder 2, the air outlet hole 11 of the first cylinder 1 can extend farther, so that the operating distance can be farther and the user operation can be more labor-saving.

[0065] Preferably, combined with Figures 9 to 11 As shown, when in the stretched state, the first cylinder 1 and the second cylinder 2 are coaxially arranged, and preferably the included angle θ = 180°. Specifically, the first cylinder 1 has a first end and a second end that are opposite along its axial direction, and the second cylinder 2 also has a first end and a second end that are opposite along its axial direction. When in the stretched state, the first end of the first cylinder 1 and the first end of the second cylinder 2 are butt-connected, the second end of the first cylinder 1 is arranged in the direction away from the second cylinder 2, and the second end of the second cylinder 2 is arranged in the direction away from the first cylinder 1. The first end and the second end of the first cylinder 1, and the first end and the second end of the second cylinder 2 are all on the same straight line. At this time, the first cylinder 1 and the second cylinder 2 are fully stretched, and the wind resistance on the air flow path is smaller, so the air outlet efficiency is also higher. It can be understood that when in the stretched state, the included angle θ is not completely limited, and the included angle θ can approach 180°, such as 180° ± 5°, so that the first cylinder 1 and the second cylinder 2 are generally arranged in a straight line.

[0066] Of course, combined with Figures 3 to 5 As shown, the first cylinder 1 and the second cylinder 2 also have a bent state between the folded state and the stretched state. At this time, the included angle between the first cylinder 1 and the second cylinder 2 is greater than 0° and less than 180°. For example, the first cylinder 1 and the second cylinder 2 are in a "V" shape or an "L" shape, etc., so that the folding hair dryer 100 can be in a preset angle position for use in a special environment.

[0067] In one embodiment, the folding hair dryer device 100 may further include one or more positioning structures. Through the one or more positioning structures, the first cylinder 1 and the second cylinder 2 can be maintained in one or more of the above-mentioned states. So that when in the extended state or the bent state, the first cylinder 1 and the second cylinder 2 will not rotate arbitrarily, so as to better maintain the working state. Wherein, the specific form of the positioning structure is not specifically limited. The positioning structure can be set as a positioning protrusion to be engaged with one or more grooves on the rotation path of the pivot structure 3, so as to position the pivot structure 3 at a preset rotation angle. Or, when the first cylinder 1 and the second cylinder 2 are driven to rotate by a driving mechanism, the positioning structure can be set as a position sensor. By detecting and controlling the work of the driving mechanism through the position sensor, the first cylinder 1 and the second cylinder 2 can be controlled at different states, and the operation is more intelligent and convenient.

[0068] It is set that the first cylinder 1 and the second cylinder 2 rotate on a horizontal plane. Preferably, the pivot axis of the pivot structure 3 is arranged in the vertical direction. When in the extended state, the pivot axis of the pivot structure 3 is perpendicular to the central axis of the first cylinder 1 and / or the central axis of the second cylinder 2, so that the first cylinder 1 and the second cylinder 2 rotate more smoothly and are not easy to twist or shake.

[0069] Wherein, when in the folded state, the first side of the first cylinder 1 and the first side of the second cylinder 2 are arranged relatively. Wherein, the shape of the first side of the first cylinder 1 is adapted to the shape of the first side of the second cylinder 2, so that when the first cylinder 1 and the second cylinder 2 are in the folded state, the two can be closer to each other.

[0070] Moreover, in combination Figure 11 and Figure 12 As shown, when in the extended state, in the orthographic projection along the axial direction of the pivot structure 3, the projections of the first cylinder 1 and the second cylinder 2 are both on the same side of the projection of the plane where the pivot axis of the pivot structure 3 is located, that is, the first side of the first cylinder 1 and / or the first side of the second cylinder 2 are both on the plane where the pivot axis is located or both on the first side of the plane where the pivot axis is located. Wherein, when the diameters of the first cylinder 1 and the second cylinder 2 are equal and in the extended state, the first side of the first cylinder 1 and the first side of the second cylinder 2 are flush, and the pivot axis is exactly on the plane where the first side of the first cylinder 1 and the first side of the second cylinder 2 are located. The first cylinder 1 and the second cylinder 2 can better rotate in the same plane and achieve a rotation close to 180°. When the pivot axis of the pivot structure 3 is exactly on the straight line where the first side of the first cylinder 1 and / or the second cylinder 2 is located, when in the folded state, the first side of the first cylinder 1 and the first side of the second cylinder 2 just fit together, and the first cylinder 1 and the second cylinder 2 are parallel and close to each other, maintaining the best folded state.

[0071] When the diameters of the first cylinder 1 and the second cylinder 2 are set to be inconsistent, or when the first cylinder 1 and the second cylinder 1 are in an arc shape or an irregular shape, in combination with Figure 11 As shown, the plane where the pivot axis of the pivot structure 3 is located is set as plane S1. When one of the first cylinder 1 and the second cylinder 2 has a convex portion extending from the first side of plane S1 to the second side of plane S1, the other is correspondingly provided with a relief space located on the first side of plane S1, and the relief space is adapted to accommodate the convex portion. For example, when a button or a decorative piece protrudes from the first side of the first cylinder 1, a corresponding relief groove or receiving area is provided on the first side of the second cylinder 2, so that when in the folded state, the convex portion on the first cylinder 1 will not abut against the second cylinder 2, enabling the first cylinder 1 and the second cylinder 2 to be closer and the folded storage volume to be smaller. Preferably, the shape of the relief space is adapted to the shape of the convex portion, that is, the shape of the part of the first cylinder 1 protruding from the second side of plane S1 matches the shape of the second cylinder 2 contracted on the first side of plane S1. Thus, when in the folded state, through the cooperation of the concave portion and the convex portion, the first cylinder 1 and the second cylinder 2 can be mutually adapted and close to each other, making the included angle between the first cylinder 1 and the second cylinder 2 approach or equal to 0°, and better folding and storing.

[0072] For the pivot structure 3, it is mainly used to rotatably connect the first cylinder 1 and the second cylinder 2. Preferably, the pivot structure 3 is used to keep the first cylinder 1 and the second cylinder 2 in the same plane for rotation, so that when in the folded state, the two cylinders can be more closely attached, and thus the storage volume is smaller. When in the extended state, the first cylinder 1 and the second cylinder 2 can be better kept on the same straight line, and the appearance is more smooth.

[0073] Preferably, in combination with Figures 6 to 8 As shown, the pivot structure 3 includes a shaft body portion 33, a first rotating portion 31, and a second rotating portion 32. The first rotating portion 31 is rotatably sleeved outside the shaft body portion 33 and is connected to the first cylinder 1; the second rotating portion 32 is rotatably sleeved outside the shaft body portion 33 and is connected to the second cylinder 2; wherein, the first rotating portion 31 and the second rotating portion 32 can rotate relative to each other, and the central axes of the first cylinder 1 and the second cylinder 2 are in the same plane. By connecting the shaft body portion 33 and the first cylinder 1 through the first rotating portion 31, and connecting the shaft body portion 33 and the second cylinder 2 through the second rotating portion 32, under the transitional action of the first rotating portion 31 and the second rotating portion 32, the first cylinder 1 and the second cylinder 2 can rotate relative to each other, and at the same time, the central axes of the first cylinder 1 and the second cylinder 2 can be better in the same plane to ensure that the first cylinder 1 and the second cylinder 2 will not shift during the rotation process.

[0074] In one embodiment, the first rotating part 31 and the second rotating part 32 are nested. Wherein, the first rotating part 31 and the second rotating part 32 can both be cylindrical. By nesting the first rotating part 31 and the second rotating part 32 with each other, relative rotation is achieved, and it can better ensure that the central axes of the first cylinder 1 and the second cylinder 2 are in the same plane.

[0075] In another embodiment, the first rotating part 31 and the second rotating part 32 are arranged side by side along the axial direction of the shaft body part 33. At this time, the connection between the first cylinder 1 and the first rotating part 31 and the connection between the second rotating part 32 and the second cylinder 2 are offset, so that the central axes of the first cylinder 1 and the second cylinder 2 are in the same plane.

[0076] Further, as shown in Figure 8 and Figure 13 the first rotating part 31 includes a first rotating sleeve 311, and the first rotating sleeve 311 is arranged at one end of the first cylinder 1 along its axial direction; the second rotating part 32 includes a second rotating sleeve 321, and the second rotating sleeve 321 is arranged at one end of the second cylinder 2 along its axial direction and is arranged side by side with the first rotating sleeve 311 along the axial direction of the shaft body part 33. By sleeving the first rotating sleeve 311 and the second rotating sleeve 321 on the outside of the shaft body part 33 respectively, the first cylinder 1 and the second cylinder 2 are rotationally connected.

[0077] Preferably, the first rotating sleeve 311 and the first cylinder 1 are integrally formed, and the second rotating sleeve 321 and the second cylinder 2 are integrally formed. Thus, when assembling, there are fewer assembling components, and therefore the assembly is simpler.

[0078] Further, as shown in Figure 8 and Figure 13As shown in the figure, the second cylinder body 2 includes a first half shell 22 and a second half shell 23 which are connected. The cross sections of both the first half shell 22 and the second half shell 23 are substantially semicircular, facilitating the installation of the circuit structure 4 or other components inside the second cylinder body 2. The second rotating sleeve 321 includes a connected first sleeve body 3211 and a second sleeve body 3212. The first sleeve body 3211 is connected to the first half shell 22, and the second sleeve body 3212 is connected to the second half shell 23. The first sleeve body 3211 and the second sleeve body 3212 are respectively sleeved at both axial ends of the first rotating sleeve 311. Specifically, if the first sleeve body 3211 is sleeved at the upper end of the first rotating sleeve 311, then the second sleeve body 3212 is sleeved at the lower end of the first rotating sleeve 311. The first half shell 22 is connected to the peripheral side of the first sleeve body 3211 and is arranged near the bottom of the first half shell 22. The second half shell 23 is connected to the peripheral side of the second sleeve body 3212 and is arranged near the top of the second half shell 23. When the first sleeve body 3211 and the second sleeve body 3212 are installed in place, the first half shell 22 and the second half shell 23 are exactly connected relatively, and the assembly operation is simple and convenient.

[0079] Further, the shaft body part 33 connects the first sleeve body 3211 and the second sleeve body 3212, so that the first rotating sleeve 311 is rotationally clamped between the first sleeve body 3211 and the second sleeve body 3212, and a plurality of air passing holes 312 are provided on the first rotating sleeve 311. The first sleeve body 3211 and the second sleeve body 3212 can be connected through the shaft body part 33, and the first sleeve body 3211 and the second sleeve body 3212 are respectively located at both axial ends of the first rotating sleeve 311, enabling the first rotating sleeve 311 to rotate relative to the shaft body part 33. When in the extended state, the plurality of air passing holes 312 can be in a blocked state, and the air flow directly enters the first cylinder body 1 from the second cylinder body 2 through the pivot structure 3; when in the bent state, at least part of the plurality of air passing holes 312 is in communication with the outside and can be used for air intake, so that part of the air flow can directly enter the pivot structure 3 from the plurality of air passing holes 312 and then enter the first cylinder body 1, improving the air intake efficiency.

[0080] Specifically, in combination with Figures 6 to 8 As shown in the figure, the shaft body part 33 includes a locking shaft 331, a pressing sleeve 333 and an end cover 332. The locking shaft 331 passes through the second sleeve body 3212 and the first sleeve body 3211 from bottom to top and is locked with the end cover 332 to connect the first sleeve body 3211 and the second sleeve body 3212. The pressing sleeve 333 is sleeved outside the locking shaft 331 and presses at least part of the first rotating sleeve 311 onto the second sleeve body 3212, enabling the first rotating sleeve 311 to rotate relative to the second sleeve body 3212 and the pressing sleeve 333. The structure is simple and the assembly is convenient.

[0081] Among them, the first cylinder body 1 may include a first inner cylinder, a first outer cylinder, and an air outlet member provided at the front end of the first outer cylinder. The first inner cylinder is integrally provided with the first rotating sleeve 311. The first outer cylinder is sleeved on the outer peripheral side of the first inner cylinder. The air outlet member includes an air outlet main body and a plurality of air outlet blades provided on the peripheral side of the air outlet main body. The plurality of air outlet blades are bent on the same side along the circumferential direction of the air outlet main body. An opening is provided on the air outlet main body, and an air outlet channel is formed between two adjacent air outlet blades, so that while the air outlet volume is larger, the air outlet is more uniform.

[0082] The second cylinder body 2 may include a second inner cylinder and a second outer cylinder. The first half shell 22 and the second half shell 23 together form the second inner cylinder. The second outer cylinder is sleeved on the outside of the second inner cylinder, so that the second cylinder body 2 has better strength and better sealing performance.

[0083] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structures made by using the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A folding hair-drying device, characterized in that, include: A first cylinder and a second cylinder; A pivot structure, pivotally connecting the first cylinder and the second cylinder, so that the first cylinder and the second cylinder can rotate relative to each other, and during the relative rotation of the first cylinder and the second cylinder, the central axis of the first cylinder and the central axis of the second cylinder are located on the same plane; During their relative rotation, the first cylinder and the second cylinder have a folded state in which they are arranged in parallel, a stretched state in which one end is opposite to the other end, and a bent state. In the bent state, the central axis of the first cylinder and the central axis of the second cylinder are arranged at an angle, and the angle is a minor angle or a major angle.

2. The folding hair dryer device according to claim 1, wherein The first cylinder and the second cylinder can rotate back and forth between the folded state, the bent state, and the extended state in sequence, so that the central axis of the first cylinder and the central axis of the second cylinder have an angle θ, wherein the angle θ is 0 to 180°.

3. The folding hair dryer device according to claim 2, wherein, In the folded state, the first side of the first cylinder and the first side of the second cylinder are parallel to and / or abut against each other.

4. The folding hair dryer device according to claim 2, characterized in that, When in the extended state, the first cylinder and the second cylinder are coaxially arranged, and the included angle θ=180°.

5. The folding hair dryer device according to claim 4, wherein, The first cylinder has a first end and a second end which are opposite to each other along its axial direction, and the second cylinder has a first end and a second end which are opposite to each other along its axial direction. When in the extended state, the first end of the first cylinder and the first end of the second cylinder are connected to each other, the second end of the first cylinder is arranged in a direction facing away from the second cylinder, and the second end of the second cylinder is arranged in a direction facing away from the first cylinder, and the first end and the second end of the first cylinder and the first end and the second end of the second cylinder are all on the same straight line.

6. The folding hair-drying device according to claim 1, characterized in that The first cylinder and the second cylinder have the same length along their respective axial directions; and / or, The first barrel and the second barrel are both cylindrical and have the same diameter.

7. The folding hair-drying device according to claim 1, wherein, The pivot structure comprises: Axis body; A first rotating part, rotatably sleeved on the outer side of the shaft body and connected to the first cylinder; A second rotating part, rotatably sleeved on the outer side of the shaft body and connected to the second cylinder; Wherein, the first rotating part and the second rotating part can rotate relatively.

8. The folding hair-drying device according to claim 7, wherein The first rotating part and the second rotating part are arranged side by side along the axial direction of the shaft body; or, The first rotating part and the second rotating part are nested with each other.

9. The folding hair dryer device according to claim 7, wherein The first rotating part includes a first rotating sleeve, which is arranged at one end of the first cylinder along its axial direction; the second rotating part includes a second rotating sleeve, which is arranged at one end of the second cylinder along its axial direction and is arranged side by side with the first rotating sleeve along the axial direction of the shaft body.

10. The folding hair dryer device according to claim 9, wherein, The first rotating sleeve and the first cylinder are integrally arranged; and / or, The second rotating sleeve and the second cylinder are integrally arranged.

11. The folding hair-drying device according to claim 10, wherein, The second cylinder comprises a first half shell and a second half shell connected to each other; The second rotating sleeve includes a first sleeve body and a second sleeve body connected to each other. The first sleeve body is connected to the first half shell, and the second sleeve body is connected to the second half shell. The first sleeve body and the second sleeve body are respectively rotatably sleeved at two ends of the first rotating sleeve along its axial direction.

12. The folding hair drying device according to claim 11, wherein, The shaft body part connects the first sleeve body and the second sleeve body, so that the first rotating sleeve is rotatably clamped between the first sleeve body and the second sleeve body, and a plurality of air passing holes are provided on the first rotating sleeve.

13. The folding hair dryer device according to claim 1, wherein, An air outlet hole is provided on the first cylinder body, an air inlet hole is provided on the second cylinder body, and an air passing channel is provided on the pivoting structure. The air passing channel communicates the air inlet hole and the air outlet hole.

14. The folding hair dryer device according to claim 13, wherein The folding blowing device further includes a circuit structure, and the circuit structure is arranged in the second cylinder body. In the air flow direction, the circuit structure is located in the communication channel between the air inlet hole and the air passing channel.

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