Foldable hair dryer device

Abstract

The present application discloses a foldable hair dryer device. The foldable hair dryer device comprises a first cylinder, a second cylinder, and a pivoting structure. The pivoting structure is pivotally connected to the first cylinder and the second cylinder, so that the first cylinder and the second cylinder can rotate relative to each other. 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. Along a stroke of the relative rotation of the first cylinder and the second cylinder, the first cylinder and the second cylinder have a folded state in which the first cylinder and the second cylinder are arranged in parallel, an unfolded state in which one end faces away from the other end, and a bent state, wherein in the bent state, the central axis of the first cylinder and the central axis of the second cylinder are arranged at an included angle, and the included angle is a minor angle or a major angle. In the technical solution provided in the present application, the foldable hair dryer device is convenient to store, and the first cylinder and the second cylinder have a larger adjustable range, thereby better meeting use requirements of different users, achieving more convenient use, and providing better use experience for users.

Description

Folding blower Technical Field

[0001] This application relates to the technical field of household appliances, specifically to a folding hair dryer. Background Technology

[0002] Hair dryers, such as hairdryers, are widely used in daily life. A hairdryer generally consists of two parts: a handle for the user to hold and a nozzle for blowing heated air. Traditional hairdryers come in two forms: non-foldable and foldable. Non-foldable hairdryers are generally L-shaped, fixing the relative positions of the handle and nozzle, but they are bulky and difficult to store. Foldable hairdryers can be in an L-shaped working state or folded from the L-shape, bringing the handle and nozzle closer together. Traditional hairdryers have limited rotation angles, generally only offering these two states, and cannot meet the needs of more usage scenarios. Technical issues

[0003] Therefore, this application aims to solve the problem that traditional hair dryers have limited rotation angles and cannot meet the needs of more usage scenarios. Technical solutions

[0004] To achieve the above objectives, this application proposes a folding blower device, comprising:

[0005] First cylinder and second cylinder;

[0006] A pivoting structure pivotally connects the first cylinder and the second cylinder, allowing the first cylinder and the second cylinder to rotate relative to each other. 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.

[0007] The first cylinder and the second cylinder have a folded state arranged in parallel, an extended state with one end opposite to the other, and a bent state during their relative rotation. In the bent state, the central axis of the first cylinder and the central axis of the second cylinder are set at an angle, and the angle is either a minor angle or a major angle. Beneficial effects

[0008] The technical solution provided in this application has the following beneficial effects:

[0009] The folding hair dryer provided in this application includes a first cylinder, a second cylinder, and a pivoting structure. The pivoting structure connects the first and second cylinders, allowing them to rotate relative to each other. This adjusts the angle between the first and second cylinders, enabling them to operate at different angular positions and providing greater versatility in their operation. When the first and second cylinders are folded in parallel, the hair dryer is more compact and easier to store. When the first and second cylinders are extended with one end opposite to the other, the first and second cylinders... It can be fully extended, allowing for a greater operating distance and better adjustment of the airflow direction. When in a bent state, the first and second cylinders can operate in an "L" or "V" shape to meet the needs of special usage environments. The adjustable range of the first and second cylinders is greater, thus better meeting the diverse needs of different users, making it more convenient to use and providing a better user experience. Furthermore, during the relative rotation of the first and second cylinders, the central axes of the first and second cylinders always lie on the same plane, making the rotation of the first cylinder easier and less strenuous, and providing a better feel for the user. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0011] Figure 1 is a structural schematic diagram of an embodiment of a foldable blower (in a folded state) provided in this application;

[0012] Figure 2 is a cross-sectional structural diagram of the folding blower device described in Figure 1 (in a folded state);

[0013] Figure 3 is a structural schematic diagram of the folding blower device described in Figure 1 (in a bent state);

[0014] Figure 4 is a structural schematic diagram from another perspective of the folding blower device described in Figure 3 (in a bent state);

[0015] Figure 5 is a cross-sectional structural diagram of the folding blower device described in Figure 4 (in a bent state);

[0016] Figure 6 is another cross-sectional view of the folding blower device described in Figure 4 (in a bent state);

[0017] Figure 7 is another cross-sectional structural diagram of the folding blower device described in Figure 4 (in a bent state);

[0018] Figure 8 is an exploded structural diagram of the folding blower device described in Figure 3 (in a bent state);

[0019] Figure 9 is a structural schematic diagram of the folding blower device described in Figure 1 (in the extended state);

[0020] Figure 10 is a structural schematic diagram from another perspective of the folding blower device described in Figure 9 (in the extended state);

[0021] Figure 11 is a structural schematic diagram from another perspective of the folding blower device described in Figure 9 (in the extended state);

[0022] Figure 12 is a cross-sectional structural diagram of the folding blower device described in Figure 11 (in the extended state);

[0023] Figure 13 is an exploded structural diagram of the folding blower device described in Figure 9 (in the extended state);

[0024] Figure 14 is a structural schematic diagram of a second embodiment of a folding blower (in an extended state) provided in this application;

[0025] Figure 15 is a structural diagram of the folding blower device described in Figure 14 (in a bent state);

[0026] Figure 16 is a partial exploded view of the folding blower device described in Figure 14;

[0027] Figure 17 is another exploded structural diagram of the folding blower device described in Figure 14;

[0028] Figure 18 is an exploded structural diagram of the folding blower device described in Figure 17 from another perspective;

[0029] Figure 19 is a cross-sectional structural schematic diagram of the folding blower device described in Figure 1;

[0030] Figure 20 is an enlarged structural diagram of detail A in Figure 19;

[0031] Figure 21 is a structural schematic diagram of a third embodiment of a folding blower (in an extended state) provided in this application;

[0032] Figure 22 is a structural schematic diagram of the folding blower device described in Figure 21 (in a bent state);

[0033] Figure 23 is a cross-sectional structural diagram of the folding blower device described in Figure 21 (in the extended state);

[0034] Figure 24 is another cross-sectional view of the folding blower device described in Figure 21 (in the extended state);

[0035] Figure 25 is a cross-sectional structural diagram of the folding blower device described in Figure 21 (in a bent state);

[0036] Figure 26 is a cross-sectional view of the pivot structure of the folding blower device described in Figure 21 (in the extended state);

[0037] Figure 27 is an exploded structural diagram of the folding blower device described in Figure 21;

[0038] Figure 28 is a partial structural schematic diagram of the folding blower device described in Figure 21;

[0039] Figure 29 is another partial structural schematic diagram of the folding blower device described in Figure 21;

[0040] Figure 30 is another cross-sectional structural schematic diagram of the folding blower device described in Figure 21;

[0041] Figure 31 is a structural schematic diagram of the wind turbine assembly in Figure 21;

[0042] Figure 32 is an exploded structural diagram of the wind turbine assembly described in Figure 31;

[0043] Figure 33 is a cross-sectional structural diagram of the wind turbine assembly described in Figure 31;

[0044] Figure 34 is a structural schematic diagram of a fourth embodiment of a folding blower (in the extended state) provided in this application;

[0045] Figure 35 is a schematic diagram of the structure of the folding blower described in Figure 34 (when in a bent state);

[0046] Figure 36 is an exploded structural diagram of the folding blower device described in Figure 34;

[0047] Figure 37 is a cross-sectional structural schematic diagram of the folding blower device described in Figure 34 (when in the extended state);

[0048] Figure 38 is another cross-sectional structural schematic diagram of the folding blower device described in Figure 34 (when in the extended state);

[0049] Figure 39 is another cross-sectional structural schematic diagram of the folding blower device described in Figure 34 (when in the extended state);

[0050] Figure 40 is a cross-sectional structural diagram of the folding blower device described in Figure 35 (when in a bent state);

[0051] Figure 41 is a partial structural schematic diagram of the folding blower device described in Figure 35 (when in a bent state);

[0052] Figure 42 is another partial structural schematic diagram of the folding blower device described in Figure 35 (when in a bent state);

[0053] Figure 43 is another cross-sectional structural diagram of the folding blower device described in Figure 35 (when in a bent state).

[0054] The realization of the purpose of this application, its functional characteristics and excellent effects will be further explained below in conjunction with specific embodiments and accompanying drawings. Embodiments of the present invention

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0056] It should be noted that if the embodiments of this application involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0057] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application. Example 1

[0058] This application provides a folding blower device 100a. Specifically, please refer to Figures 1, 3 and 9. In this embodiment, the folding blower device 100a includes a first cylinder 1a and a second cylinder 2a, as well as a pivot structure 3a. The pivot structure 3a pivotally connects the first cylinder 1a and the second cylinder 2a, so that the first cylinder 1a and the second cylinder 2a can rotate relative to each other to have a folded state arranged in parallel, an extended 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 1a and the central axis of the second cylinder 2a are set at an angle, and the angle is either a minor angle or a major angle.

[0059] In this embodiment, a pivot structure 3a connects the first cylinder 1a and the second cylinder 2a, allowing relative rotation between them. This adjusts the angle between the first cylinder 1a and the second cylinder 2a, enabling them to operate at different angular positions and thus providing greater versatility in the operation of the folding blower device 100a. When the first cylinder 1a and the second cylinder 2a are folded in parallel, the folding blower device 100a is more compact and easier to store. When the first cylinder 1a and the second cylinder 2a are extended with one end opposite to the other, the first cylinder... The first cylinder 1a and the second cylinder 2a can be fully extended, allowing for a greater operating distance and better adjustment of the airflow direction. When in a bent state, the central axis of the first cylinder 1a and the central axis of the second cylinder 2a are set at an angle, which is either a minor angle (greater than 0° and less than 180°) or a major angle (greater than 180° and less than 360°). The first cylinder 1a and the second cylinder 2a can operate in an "L" or "V" shape to meet the needs of special operating environments. The adjustable range of the first cylinder 1a and the second cylinder 2a is greater, thus better meeting the various needs of different users, making it more convenient to use and providing a better user experience.

[0060] The folding hair dryer 100a can be configured as a hair dryer or curling iron, etc. One of the first cylindrical body 1a and the second cylindrical body 2a can be configured as a blower, and the other as a handle. The first cylindrical body 1a is configured as a blower, and the second cylindrical body 2a as a handle. An air outlet 11a is provided on the first cylindrical body 1a. It can be understood that an air inlet 21a can be provided on the first cylindrical body 1a, and / or the second cylindrical body 2a, and / or the pivot structure 3a, so that after entering the first cylindrical body 1a, the airflow can be blown out through the air outlet 11a for user use.

[0061] It is understood that the folding blower 100a may also include a heating element and a circuit structure 4a, which is electrically connected to the heating element to control its operation. The heating element and the circuit structure 4a may both be housed within the same cylinder, or they may be housed separately within the first cylinder 1a and the second cylinder 2a.

[0062] Preferably, the heating element is located inside the first cylinder 1a, the circuit structure 4a is located inside the second cylinder 2a, the air inlet 21a is located on the second cylinder 2a, and an air passage is provided on the pivot structure 3a, which connects the air inlet 21a and the air outlet 11a, thus connecting the first cylinder 1a and the second cylinder 2a. Along the airflow direction, the circuit structure 4a is located in the connecting channel between the air inlet 21a and the air passage, allowing cold airflow to enter the second cylinder 2a from the air inlet 21a, flow through the circuit structure 4a, then through the air passage into the first cylinder 1a, and after being heated by the heating structure, flow out of the first cylinder 1a from the air outlet 11a. This arrangement allows cold airflow to flow through the circuit structure 4a for heat dissipation, and also allows hot airflow from the periphery of the circuit structure 4a to be drawn into the first cylinder 1a, improving heating efficiency and saving heating energy.

[0063] By adjusting the relative angle between the first cylinder 1a and the second cylinder 2a, the folding blower 100a can be in different working states to meet different user needs. Preferably, the first cylinder 1a and the second cylinder 2a can rotate back and forth between a folded state, a bent state, and an extended state, so that the central axis of the first cylinder 1a and the central axis of the second cylinder 2a have an angle θ. When the bending angle is a minor angle, the included angle θ is preferably 0~180°; and when the bending angle is a major angle, the included angle θ is preferably 0~360°. The adjustment of the included angle between the first cylinder 1a and the second cylinder 2a can be achieved by driving the first cylinder 1a and / or the second cylinder 2a to rotate through a drive mechanism, making the switching between various working states of the folding blower 100a more intelligent; or, the adjustment of the included angle between the first cylinder 1a and the second cylinder 2a can be achieved manually, which is simpler in structure and lower in cost.

[0064] It is understood that there are many ways in which the first cylinder 1a and the second cylinder 2a can be connected by relative rotation. In one embodiment, the rotation plane of the first cylinder 1a (i.e., the plane through which the central axis of the first cylinder 1a rotates) and the rotation plane of the second cylinder 2a (i.e., the plane through which the central axis of the second cylinder 2a rotates) can be set to be non-coplanar. For example, the rotation plane of the first cylinder 1a and the rotation plane of the second cylinder 2a can be set parallel and / or intersecting, so that the first cylinder 1a and the second cylinder 2a are misaligned in the rotation direction, thereby better realizing large-angle rotation. And / or, one of the first cylinder 1a and the second cylinder 2a can rotate, and the angle between the two can be changed by the relative rotation of the first cylinder 1a and the second cylinder 2a.

[0065] Preferably, during the relative rotation of the first cylinder 1a and the second cylinder 2a, the central axis of the first cylinder 1a and the central axis of the second cylinder 2a are always located on the same plane. The supports between the first cylinder 1a and the second cylinder 2a remain aligned during rotation. Therefore, when the first cylinder 1a is rotated while holding the second cylinder 2a, the first cylinder 1a will not tilt to one side, making rotation easier and less strenuous, and providing a better user experience. Furthermore, it does not occupy excessive space along the axis of the pivot structure 3a, resulting in a more compact size for the folding hair dryer 100a.

[0066] The first cylinder 1a and the second cylinder 2a are arranged in a folded state with parallel configuration. Here, "parallel" means that the central axis of the first cylinder 1a and the central axis of the second cylinder 2a are approximately parallel, and the radial projections of the first cylinder 1a and the second cylinder 2a largely overlap. Therefore, when in the folded state, the overall length of the folded blower 100a (i.e., along the axial direction of each cylinder) is shorter, and it occupies less space when stored.

[0067] Preferably, the first cylinder 1a and the second cylinder 2a are approximately the same length along their respective axes. When in the folded state, the two ends of the first cylinder 1a and the second cylinder 2a are aligned, thus making them more neat and compact to store.

[0068] The shape and size of the first cylinder 1a and the second cylinder 2a are not specifically limited, and can be square, polygonal, or irregular in shape. Preferably, both the first cylinder 1a and the second cylinder 2a are cylindrical and have the same diameter, so that when the first cylinder 1a and the second cylinder 2a are in the folded and extended states, the external structure of the folding blower 100a is more symmetrical, more aesthetically pleasing, and more comfortable to hold.

[0069] Furthermore, referring to Figures 1 and 2, when in the folded state, the first side of the first cylinder 1a and the first side of the second cylinder 2a are parallel and / or abut against each other, wherein the first cylinder 1a and the second cylinder 2a can partially abut or completely fit together. Preferably, the included angle θ = 0°. This ensures that when in the folded state, there is almost no gap between the first cylinder 1a and the second cylinder 2a, resulting in a tighter fit, smaller volume, and easier storage for convenient carrying.

[0070] Furthermore, the first cylinder 1a and the second cylinder 2a are extended with one end facing each other and the other end facing away from each other. This allows for better connection between one end of the first cylinder 1a and one end of the second cylinder 2a, while keeping the other ends of the first cylinder 1a and the second cylinder 2a far apart. The angle between the central axis of the first cylinder 1a and the central axis of the second cylinder 2a is obtuse and close to a straight angle. The air outlet 11a can be located on the peripheral side wall of the first cylinder 1a or at its end. When the air outlet is also located at the end of the first cylinder 1a, the air outlet 11a can extend further when the user holds the second cylinder 2a, thus increasing the operating distance and reducing the effort required for user operation.

[0071] Preferably, as shown in Figures 9 to 11, in the extended state, the first cylinder 1a and the second cylinder 2a are coaxially arranged, and preferably the included angle θ = 180°. Specifically, the first cylinder 1a has a first end and a second end opposite to each other along its axial direction, and the second cylinder 2a also has a first end and a second end opposite to each other along its axial direction. In the extended state, the first end of the first cylinder 1a and the first end of the second cylinder 2a are connected to each other, the second end of the first cylinder 1a is oriented in a direction away from the second cylinder 2a, and the second end of the second cylinder 2a is oriented in a direction away from the first cylinder 1a. The first end and the second end of the first cylinder 1a, as well as the first end and the second end of the second cylinder 2a, are all on the same straight line. At this time, the first cylinder 1a and the second cylinder 2a are fully extended, the wind resistance in the airflow path is smaller, and therefore the air outlet efficiency is higher. It is understandable that when in the extended 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 1a and the second cylinder 2a are roughly arranged in a straight line.

[0072] Of course, as shown in Figures 3 to 5, the first cylinder 1a and the second cylinder 2a also have a bent state between the folded state and the extended state, in which the angle between the first cylinder 1a and the second cylinder 2a is greater than 0° and less than 180°. For example, the first cylinder 1a and the second cylinder 2a are in a "V" shape or an "L" shape, so that the folding blower 100a can be in a preset angle position for use in special environments.

[0073] In one embodiment, the folding blower device 100a may further include one or more positioning structures, which can hold the first cylinder 1a and the second cylinder 2a in one or more of the aforementioned states. This prevents the first cylinder 1a and the second cylinder 2a from rotating arbitrarily when in an extended or bent state, thus better maintaining them in that state for operation. The specific form of the positioning structure is not specifically limited; it can be configured as a positioning protrusion that engages with one or more grooves on the rotation path of the pivot structure 3a, thereby positioning the pivot structure 3a at a preset rotation angle. Alternatively, when the first cylinder 1a and the second cylinder 2a are driven to rotate by a drive mechanism, the positioning structure can be configured as a position sensor. The position sensor's detection controls the operation of the drive mechanism, thereby controlling the first cylinder 1a and the second cylinder 2a in different states, making operation more intelligent and convenient.

[0074] If the first cylinder 1a and the second cylinder 2a are set to rotate on a horizontal plane, then preferably, the pivot axis of the pivot structure 3a is set in the vertical direction. When in the extended state, the pivot axis of the pivot structure 3a is perpendicular to the central axis of the first cylinder 1a and / or the central axis of the second cylinder 2a, so that the first cylinder 1a and the second cylinder 2a rotate more smoothly and are not easy to twist or shake.

[0075] When in the folded state, the first side of the first cylinder 1a and the first side of the second cylinder 2a are arranged opposite each other, wherein the shape of the first side of the first cylinder 1a is adapted to the shape of the first side of the second cylinder 2a, so that the first cylinder 1a and the second cylinder 2a can be closer together when in the folded state.

[0076] Furthermore, as shown in Figures 11 and 12, in the extended state, on the orthogonal projection along the axial direction of the pivot structure 3a, the projections of the first cylinder 1a and the second cylinder 2a are both located on the same side of the projection of the plane containing the pivot axis of the pivot structure 3a. That is, the first side of the first cylinder 1a and / or the first side of the second cylinder 2a are both located on the plane containing the pivot axis, or both are located on the first side of the plane containing the pivot axis. Specifically, when the diameters of the first cylinder 1a and the second cylinder 2a are equal, in the extended state, the first side of the first cylinder 1a and the first side of the second cylinder 2a are aligned, and the pivot axis is exactly located on the plane containing the first side of the first cylinder 1a and the first side of the second cylinder 2a. This allows the first cylinder 1a and the second cylinder 2a to achieve a rotation approaching 180° while rotating in the same plane. When the pivot axis of the pivot structure 3a is located on the straight line of the first side of the first cylinder 1a and / or the second cylinder 2a, the first side of the first cylinder 1a and the first side of the second cylinder 2a are in contact when the structure is folded, and the first cylinder 1a and the second cylinder 2a are parallel and close together, maintaining the best folded state.

[0077] When the diameters of the first cylindrical body 1a and the second cylindrical body 2a are not the same, or when the first cylindrical body 1a and the second cylindrical body 2a are arc-shaped or irregular, as shown in Figure 11, the plane containing the pivot axis of the pivot structure 3a is defined as plane S1. When one of the first cylindrical body 1a and the second cylindrical body 2a has a protrusion extending from the first side of plane S1 to the second side of plane S1, the other cylindrical body 2a has a corresponding clearance space located on the first side of plane S1, which is suitable for accommodating the protrusion. For example, when a button or decorative piece protrudes from the first side of the first cylindrical body 1a, a corresponding clearance groove or receiving area is provided on the first side of the second cylindrical body 2a, so that when in the folded state, the protrusion on the first cylindrical body 1a will not abut against the second cylindrical body 2a, allowing the first cylindrical body 1a and the second cylindrical body 2a to be closer together, resulting in a smaller folded storage volume. Preferably, the shape of the clearance space is adapted to the shape of the protrusion, that is, the shape of the part of the first cylinder 1a protruding from the second side of the plane S1 matches the shape of the second cylinder 2a contracting to the first side of the plane S1. Thus, in the folded state, through the cooperation of the concave and the protrusion, the first cylinder 1a and the second cylinder 2a can adapt to each other and approach each other, so that the included angle between the first cylinder 1a and the second cylinder 2a approaches or equals 0°, and can be folded and stored better.

[0078] The pivot structure 3a is mainly used to rotatably connect the first cylinder 1a and the second cylinder 2a. Preferably, the pivot structure 3a is used to keep the first cylinder 1a and the second cylinder 2a rotating in the same plane, so that when in the folded state, the two cylinders can fit together more closely, resulting in a smaller storage volume. When in the extended state, the first cylinder 1a and the second cylinder 2a can be better kept on the same straight line, resulting in a smoother appearance.

[0079] Preferably, as shown in Figures 6 to 8, the pivot structure 3a includes a shaft portion 33a, a first rotating portion 31a, and a second rotating portion 32a. The first rotating portion 31a is rotatably sleeved on the outside of the shaft portion 33a and connected to the first cylinder 1a; the second rotating portion 32a is rotatably sleeved on the outside of the shaft portion 33a and connected to the second cylinder 2a; wherein the first rotating portion 31a and the second rotating portion 32a can rotate relative to each other, and the central axis of the first cylinder 1a and the central axis of the second cylinder 2a are on the same plane. The shaft portion 33a and the first cylinder 1a are connected by the first rotating part 31a, and the shaft portion 33a and the second cylinder 2a are connected by the second rotating part 32a. Under the transitional action of the first rotating part 31a and the second rotating part 32a, the first cylinder 1a and the second cylinder 2a can rotate relative to each other, and the central axis of the first cylinder 1a and the central axis of the second cylinder 2a can be better aligned on the same plane, so as to ensure that the first cylinder 1a and the second cylinder 2a will not deviate during rotation.

[0080] In one embodiment, the first rotating part 31a and the second rotating part 32a are nested together. The first rotating part 31a and the second rotating part 32a can both be cylindrical. By nesting the first rotating part 31a and the second rotating part 32a, relative rotation can be achieved, and the central axis of the first cylinder 1a and the central axis of the second cylinder 2a can be better ensured to be on the same plane.

[0081] In another embodiment, the first rotating part 31a and the second rotating part 32a are arranged side by side along the axial direction of the shaft part 33a. At this time, the connection between the first cylinder 1a and the first rotating part 31a and the connection between the second rotating part 32a and the second cylinder 2a are offset from each other, so that the central axis of the first cylinder 1a and the central axis of the second cylinder 2a are on the same plane.

[0082] Furthermore, as shown in Figures 8 and 13, the first rotating part 31a includes a first rotating sleeve 311a, which is disposed at one end of the first cylinder 1a along its axial direction; the second rotating part 32a includes a second rotating sleeve 321a, which is disposed at one end of the second cylinder 2a along its axial direction and is arranged side by side with the first rotating sleeve 311a along the axial direction of the shaft part 33a. The first rotating sleeve 311a and the second rotating sleeve 321a are respectively sleeved on the outer side of the shaft part 33a, thereby rotatably connecting the first cylinder 1a and the second cylinder 2a.

[0083] Preferably, the first rotating sleeve 311a is integrally formed with the first cylinder 1a, and the second rotating sleeve 321a is integrally formed with the second cylinder 2a, so that fewer assembly parts are required during assembly, thus making assembly simpler.

[0084] Further, as shown in Figures 8 and 13, the second cylindrical body 2a includes a first half-shell 22a and a second half-shell 23a connected together. The cross-sections of both the first half-shell 22a and the second half-shell 23a are approximately semi-circular to facilitate the installation of the circuit structure 4a or other components inside the second cylindrical body 2a. The second rotating sleeve 321a includes a first sleeve body 3211a and a second sleeve body 3212a connected together. The first sleeve body 3211a is connected to the first half-shell 22a, and the second sleeve body 3212a is connected to the second half-shell 23a. The first sleeve body 3211a and the second sleeve body 3212a are respectively rotatably fitted onto the two ends of the first rotating sleeve 311a along its axial direction. Specifically, if the first sleeve 3211a is fitted onto the upper end of the first rotating sleeve 311a, then the second sleeve 3212a is fitted onto the lower end of the first rotating sleeve 311a. The first half-shell 22a is connected to the periphery of the first sleeve 3211a and is located near the bottom of the first half-shell 22a. The second half-shell 23a is connected to the periphery of the second sleeve 3212a and is located near the top of the second half-shell 23a. This ensures that when the first sleeve 3211a and the second sleeve 3212a are installed in place, the first half-shell 22a and the second half-shell 23a are connected to each other. The assembly operation is simple and convenient.

[0085] Furthermore, the shaft portion 33a connects the first sleeve 3211a and the second sleeve 3212a, so that the first rotating sleeve 311a is rotatably clamped between the first sleeve 3211a and the second sleeve 3212a, and the first rotating sleeve 311a is provided with a plurality of air passage holes 312a. The shaft portion 33a connects the first sleeve 3211a and the second sleeve 3212a, and the first sleeve 3211a and the second sleeve 3212a are respectively located at the two ends of the axial direction of the first rotating sleeve 311a, so that the first rotating sleeve 311a can rotate relative to the shaft portion 33a. When in the extended state, the multiple air passages 312a can be blocked, and the airflow is directly introduced from the second cylinder 2a into the first cylinder 1a through the pivot structure 3a; when in the bent state, at least part of the multiple air passages 312a are open to the outside and can be used for air intake, so that a part of the airflow can directly enter the pivot structure 3a from the multiple air passages 312a and then enter the first cylinder 1a, thereby improving the air intake efficiency.

[0086] Specifically, as shown in Figures 6 to 8, the shaft portion 33a includes a locking shaft 331a, a pressure sleeve 333a, and an end cap 332a. The locking shaft 331a passes through the second sleeve 3212a and the first sleeve 3211a from bottom to top and is locked to the end cap 332a to connect the first sleeve 3211a and the second sleeve 3212a. The pressure sleeve 333a is sleeved on the outside of the locking shaft 331a and presses at least a portion of the first rotating sleeve 311a onto the second sleeve 3212a, so that the first rotating sleeve 311a can rotate relative to the second sleeve 3212a and the pressure sleeve 333a. The structure is simple and easy to assemble.

[0087] The first cylinder 1a may include a first inner cylinder and a first outer cylinder, as well as an air outlet component located at the front end of the first outer cylinder. The first inner cylinder is integrally formed with the first rotating sleeve 311a, and the first outer cylinder is sleeved on the outer periphery of the first inner cylinder. The air outlet component includes an air outlet body and multiple air outlet blades located on the periphery of the air outlet body. The multiple air outlet blades are bent along the same side of the circumference of the air outlet body. The air outlet body is provided with an opening, and an air outlet channel is formed between two adjacent air outlet blades, so that the air volume is larger and the air outlet is more uniform.

[0088] The second cylinder 2a may include a second inner cylinder and a second outer cylinder, a first half-shell 22a and a second half-shell 23a together to form the second inner cylinder, and the second outer cylinder is sleeved on the outside of the second inner cylinder, so that the second cylinder 2a has better strength and better sealing performance.

[0089] Example 2

[0090] Referring to Figures 14 to 20, this application also provides a folding blower device 100b. It should be noted that the folding blower device 100b in this specific embodiment 2 can be the folding blower device in the above-described specific embodiment 1, or it can be other folding blower devices different from those in the above-described specific embodiment 1.

[0091] Specifically, referring to Figures 14 to 16, in this embodiment, the folding hair dryer 100b includes a blower assembly 1b, a handle assembly 2b, a pivot structure 3b, and a switch assembly 4b. The pivot structure 3b pivotally connects the blower assembly 1b and the handle assembly 2b, allowing them to rotate relative to each other. The switch assembly 4b is disposed on the handle assembly 2b and close to the pivot structure 3b. The switch assembly 4b has a push button 41b that is at least partially exposed on the outside of the handle assembly 2b. The push button 41b is movable relative to the handle assembly 2b to have a first working position, a second working position, and a third working position. The push button 41b moves along a first direction under the action of an external force, moving from the first working position to the second working position. When the push button 41b is in the second working position and is subjected to a continuous force along the first direction, the push button 41b can move to the third working position, and when the force on the push button 41b in the third working position is removed, the push button 41b can automatically reset from the third working position to the second working position.

[0092] In this embodiment, the air duct assembly 1b and the handle assembly 2b are rotatably connected by a pivot structure 3b, allowing the air duct assembly 1b and the handle assembly 2b to rotate relative to each other and operate at different angles. For example, the air duct assembly 1b and the handle assembly 2b can be in a straight, extended state, or the angle between the air duct assembly 1b and the handle assembly 2b can be 90° or less, resulting in more diverse operating modes for the folding hair dryer 100b and making it easier to store. Furthermore, a switch assembly 4b is provided on the handle assembly 2b. When using the folding hair dryer 100b, the user holds the handle assembly 2b and places the switch assembly 4b on it, making it easier for the user to operate with one hand and adjust the operating mode of the folding hair dryer 100b more conveniently. Furthermore, the switch assembly 4b has a first working position, a second working position, and a third working position. When the switch assembly 4b is in different working positions, the folding hair dryer 100b is in different working modes, such as cold air mode, hot air mode, low wind speed mode, or high wind speed mode, allowing the folding hair dryer 100b to better adapt to the user's needs. Moreover, when the force on the push button 41b is removed in the third working position, the push button 41b can automatically reset from the third working position to the second working position. This allows the switch assembly 4b to automatically reset without manual adjustment by the user when switching from the third working position to the second working position, making the adjustment between gears easier and the reset time shorter. This results in faster switching of the working modes of the folding hair dryer 100b and a better user experience.

[0093] It should be noted that when the push button 41b is in the first working position, the folding hair dryer 100b is in the first working setting; when the push button 41b is in the second working position, the folding hair dryer 100b is in the second working setting; and when the push button 41b is in the third working position, the folding hair dryer 100b is in the third working setting. Each working setting corresponds to a different working mode. For example, off mode, cold air mode, hot air mode, low-speed blowing mode, high-speed blowing mode, alternating hot and cold mode, etc. The folding hair dryer 100b can be set to correspond to the above-mentioned working modes for each setting according to the actual user needs, and no specific limitation is made here.

[0094] The push button 41b is slidably mounted on the handle assembly 2b. Preferably, the first working position, the second working position, and the third working position are arranged sequentially along the axial direction of the handle assembly 2b. When the user holds the handle assembly 2b, they can better push the push button 41b with their thumb to move it in a direction perpendicular to the gripping direction (i.e., the axial direction of the handle assembly 2b), making it easier for the user to adjust the various working levels. When the folding hair dryer 100b is in normal use, the handle assembly 2b extends vertically, and the first working position, the second working position, and the third working position are arranged sequentially from top to bottom. Unless otherwise specified, the descriptions of orientations in this application shall be taken as above.

[0095] Specifically, referring to Figures 16 to 18, the push button 41b includes a slide plate 411b and a button 412b. The slide plate 411b is slidably mounted on the handle assembly 2b. A first through hole 221b is provided on the handle assembly 2b, and the button 412b is detachably mounted on the slide plate 411b and located within the first through hole 221b. At least a portion of the button 412b is exposed through the first through hole 221b to facilitate user operation. When the button 412b moves relative to the first through hole 221b under external force, it can move the slide plate 411b together, thereby adjusting the gear position through the slide plate 411b.

[0096] Furthermore, the switch assembly 4b also includes a button plate 42b disposed on the handle assembly 2b, and a switch head 43b movably disposed on the button plate 42b. A sliding plate 411b is connected to the switch head 43b, which has three positions corresponding to the first, second, and third working positions of the push button 41b, respectively. The user pushes the button 412b, causing the sliding plate 411b to move accordingly, thereby acting on the switch head 43b to switch between different positions. The button plate 42b and the switch head 43b can be formed in a mechanical switch. The working principle of a mechanical switch is conventional and will not be explained in detail here.

[0097] Furthermore, as shown in Figures 17 and 19, the switch assembly 4b also includes a reset member 44. When the push button 41b is in the third working position and the external force on the button 412b is removed, the reset member 44 can drive the slide plate 411b to move from the third working position to the second working position. That is, after the slide plate 411b is in the third working position, if the user no longer applies force to the button 412b, the slide plate 411b can automatically move from the third working position to the second working position under the action of the reset member 44, without the need for manual adjustment by the user. The folding hair dryer 100b can automatically reset from the third working position to the second working position, making operation easier and simpler, and the reset of the slide plate 411b is faster, making the switching of the working mode of the folding hair dryer 100b more efficient.

[0098] The folding hair dryer 100b also includes a circuit board and a suction device located within the handle assembly 2b. A button panel 42b is mounted on the circuit board and is electrically connected to the suction device. By switching the switch head 43b on the button panel 42b to different positions, the operation of the suction device is controlled, thereby adjusting the airflow speed or turning off the folding hair dryer 100b.

[0099] Preferably, as shown in Figures 19 and 20, the reset member 44b is configured as an elastic telescopic member 441b. In the second working position, the locking force of the switch head 43b at its position is greater than the elastic force of the elastic telescopic member 441b, and the push button 41b remains in the second working position. When the push button 41b is in the second working position, the user does not need to provide a continuous force to the button 412b, and the folding blower 100b can still operate in the second working position. In the third working position, the elastic restoring force of the elastic telescopic member 441b is greater than the locking force of the switch head 43b, driving the push button 41b to move from the third working position to the second working position. Since the elastic storage capacity of the elastic telescopic member 441b is greater in the third working position than in other working positions, and is greater than the locking force of the switch head 43b itself, the elastic telescopic member 441b can push the slide plate 411b to move, thus moving the slide plate 411b from the third working position to the second working position. Among them, the elastic telescopic component 441b can be set as a telescopic spring or an elastic rubber component, etc.

[0100] Of course, in other embodiments, the reset member 44b may also be configured as an elastic arm or other mechanism reset structure, so that the elastic arm acts against the slide plate 411b to realize the automatic reset of the slide plate 411b.

[0101] At this point, the third working position can be set to an infrequently used mode, allowing the user to quickly switch between the third and second working positions, avoiding the need for repeated adjustments to button 412b. For example, the third working position can be set to a cold air mode or a hot / cold alternating mode. Since the cold air mode or hot / cold alternating mode is generally used for less time, the user can apply force to button 412b for a certain period of time in this mode, and can quickly switch from this infrequently used mode to the normal working mode, improving the response speed of the working mode switching of the folding hair dryer 100b. Moreover, since the locking force of the switch head 43b is not large, this automatic reset mode can effectively prevent the slide plate 411b from switching directly from the third working position to the first working position due to excessive force from the user, thus avoiding the need for the user to repeatedly adjust the position and affecting the user experience.

[0102] Further, as shown in Figure 16, regarding the specific structure of the handle assembly 2b, the handle assembly 2b includes an inner handle cylinder 21b and an outer handle cylinder 22b sleeved on the outside of the inner handle cylinder 21b. The inner handle cylinder 21b has a receiving groove 2111b, the button plate 42b is disposed within the receiving groove 2111b, and the slide plate 411b is slidably disposed at the opening of the receiving groove 2111b. Through the cooperation of the inner handle cylinder 21b and the outer handle cylinder 22b, both the button plate 42b and the slide plate 411b are covered within the inner side of the handle assembly 2b, while only the button 412b is exposed. This makes the overall appearance of the handle assembly 2b more aesthetically pleasing and better protects the switch assembly 4b. The first through hole 221b is provided on the outer cylinder 22b of the handle. The first through hole 221b is opposite to the groove of the receiving groove 2111b, so that the button 412b can be connected and fixed to the middle part of the slide plate 411b, and the middle part of the slide plate 411b can be better connected to the switch head 43b to ensure that the force applied to the switch head 43b is more balanced.

[0103] Further, referring to Figures 16 and 17, the inner cylinder 21b of the handle includes a first half-cylinder 211b and a second half-cylinder 212b connected to each other. A receiving groove 2111b is located on the outside of the first half-cylinder 211b and near the pivot structure 3b. One of the first half-cylinder 211b and the second half-cylinder 212b has multiple hooks 2121b, and the other has multiple fasteners 2113b. The multiple hooks 2121b and the multiple fasteners 2113b engage one-to-one to connect and fix the first half-cylinder 211b and the second half-cylinder 212b. The outer cylinder 22b of the handle is sleeved on the outside of the first half-cylinder 211b and the second half-cylinder 212b, with the first through hole 221b facing the receiving groove 2111b. This better conceals the mounting structure on the outside of the inner cylinder 21b of the handle, making the appearance of the handle assembly 2b more aesthetically pleasing and ensuring better alignment between the outer cylinder 22b and the inner cylinder 21b.

[0104] The outer cylinder 22b of the handle is roughly cylindrical with openings at both ends. Referring again to Figures 16 and 17, multiple air passages are provided at the end of the inner cylinder 21b away from the receiving groove 2111b, with each air passage protruding from the opening of the outer cylinder 22b. The handle assembly 2b also includes a filter cylinder 23b, which is fitted onto the inner cylinder 21b and extends beyond the outer cylinder 22b, and has air inlets 231b communicating with the multiple air passages. External airflow can pass through the filter cylinder 23b via the multiple air inlets 231b and enter the inner cylinder 21b through the multiple air passages. Under the suction of the folding blower device 100b, the airflow flows through the inner side of the handle assembly 2b and then enters the air duct assembly 1b via the pivot structure 3b. After being heated by the heating element inside the air duct assembly 1b, the airflow is blown out from the air outlet of the air duct assembly 1b for user use.

[0105] To ensure better adjustment feel, preferably, as shown in Figures 18 to 20, the slide plate 411b includes a main body 4111b, two sliding arms 4112b protruding from the bottom of the main body 4111b, and two clamping arms 4113b protruding from the bottom of the main body 4111b. Each sliding arm 4112b extends axially along the handle assembly 2b, and the two clamping arms 4113b are spaced apart relative to each other along the axial direction of the handle assembly 2b to clamp the sides of the switch head 43b. The movement of the slide plate 411b drives the switch head 43b to move, thereby adjusting the gear position. The receiving groove 2111b has two opposing support arms on its sidewall, each with a corresponding sliding groove. The two sliding arms 4112b are slidably engaged within the two sliding grooves. These sliding grooves guide and support the two sliding walls, ensuring greater stability and preventing wobbling during movement of the slide plate 411b.

[0106] A second through hole 4114b is provided on the main body 4111b. The button 412b is engaged in the second through hole 4114b and extends out from the first through hole 221b, making it convenient for the user to adjust the button 412b. During assembly, the slide plate 411b can be installed on the inner cylinder 21b of the handle first, and then the outer cylinder 22b of the handle can be fitted onto the outside of the inner cylinder 21b of the handle. Then, the button 412b is engaged in the second through hole 4114b from the first through hole 221b. This makes the assembly operation of the switch assembly 4b not limited by the narrow internal space of the outer cylinder 22b of the handle, making the assembly operation more convenient.

[0107] Furthermore, multiple reinforcing ribs are provided on the side of the board body 4111b facing the inner cylinder 21b of the handle, and a protruding post is provided on the upper end of one of the reinforcing ribs. The protruding post is used to connect with the elastic telescopic member 441b, so that the elastic telescopic member 441b can better abut against the slide plate 411b and the first half cylinder 211b.

[0108] Preferably, as shown in Figures 14 and 15, during the relative rotation of the blower assembly 1b and the handle assembly 2b, the central axis of the blower assembly 1b and the central axis of the handle assembly 2b are always located on the same plane. The support between the blower assembly 1b and the handle assembly 2b remains aligned during rotation. Therefore, when the blower assembly 1b is rotated while holding the handle assembly 2b, the blower assembly 1b will not tilt to one side, making rotation easier and less strenuous, and providing a better user experience. Furthermore, it does not occupy excessive space along the axial direction of the pivot structure 3b, resulting in a more compact size for the folding hair dryer device 100b.

[0109] In one embodiment, the lengths of the air duct assembly 1b and the handle assembly 2b are approximately the same along their respective axes. When folded, the ends of the air duct assembly 1b and the handle assembly 2b are aligned, resulting in a more neat and compact storage.

[0110] In another embodiment, the axial length of the air duct assembly 1b is less than the axial length of the handle assembly 2b. Since the air duct assembly 1b is the air outlet, setting the length of the air outlet to be shorter will result in a shorter flow path for the hot airflow formed after the airflow is heated by the heating component, resulting in less heat loss and thus higher airflow efficiency.

[0111] The shape and size of the blower assembly 1b and the handle assembly 2b are not specifically limited, and can be square, polygonal, or irregular in shape. Preferably, both the blower assembly 1b and the handle assembly 2b are cylindrical with the same diameter, so that the external structure of the folding blower device 100b is more symmetrical and aesthetically pleasing when the blower assembly 1b and the handle assembly 2b are in the bent and extended states, and the grip is also more comfortable.

[0112] Furthermore, when in the extended state, one end of the air duct assembly 1b and the handle assembly 2b are opposite to each other, allowing one end of the air duct assembly 1b and one end of the handle assembly 2b to be better connected, while the other end of the air duct assembly 1b and the other end of the handle assembly 2b are far apart. The angle between the central axis of the air duct assembly 1b and the central axis of the handle assembly 2b is obtuse and close to a straight angle.

[0113] If the air duct assembly 1b and the handle assembly 2b are set to rotate on a horizontal plane, then preferably, the pivot axis of the pivot structure 3b is set in the vertical direction. When in the extended state, the pivot axis of the pivot structure 3b is perpendicular to the central axis of the air duct assembly 1b and / or the central axis of the handle assembly 2b, so that the air duct assembly 1b and the handle assembly 2b rotate more smoothly and are not easy to twist or shake.

[0114] Specifically, when rotating from the extended state to the bent state, the first side of the duct assembly 1b and the first side of the handle assembly 2b move towards each other. In the extended state, on the orthogonal projection along the axis of the pivot structure 3b, the projections of the duct assembly 1b and the handle assembly 2b are both located on the same side of the projection of the plane containing the pivot axis of the pivot structure 3b; that is, the first side of the duct assembly 1b and / or the first side of the handle assembly 2b are both located on the plane containing the pivot axis, or both are located on the first side of the plane containing the pivot axis. When the diameters of the duct assembly 1b and the handle assembly 2b are equal, in the extended state, the first side of the duct assembly 1b and the first side of the handle assembly 2b are flush, and the pivot axis is exactly located on the plane containing the first side of the duct assembly 1b and the first side of the handle assembly 2b. This allows the duct assembly 1b and the handle assembly 2b to rotate more effectively while rotating in the same plane.

[0115] Alternatively, the pivot axis of the pivot structure 3b is located exactly on the straight line of the first side of the duct assembly 1b and / or the handle assembly 2b. In the radial direction along the duct assembly 1b and / or the handle assembly 2b, the portion of the pivot structure 3b protruding from the duct assembly 1b and / or the handle assembly 2b is less, resulting in a more compact structure in the radial direction and thus a smaller volume.

[0116] Example 3

[0117] Referring to Figures 21 to 33, this application specifically provides a folding blower device 100c. It should be noted that the folding blower device 100c in this specific embodiment 3 can be the folding blower device in the above-described embodiment 1, or it can be other folding blower devices different from those in embodiment 1. Similarly, one or more embodiments in this specific embodiment 3 can be combined with one or more embodiments in the above-described embodiment 2, and should also have the effects possessed by the above embodiments, which will not be elaborated further.

[0118] Specifically, referring to Figures 21 to 23, in this embodiment, the folding blower device 100c includes a blower assembly 1c, a handle assembly 2c, a pivot structure 3c, and a fan assembly 5c. The pivot structure 3c pivotally connects the blower assembly 1c and the handle assembly 2c, allowing the blower assembly 1c and the handle assembly 2c to rotate relative to each other, having an extended state and a bent state. In the extended state, the blower assembly 1c and the handle assembly 2c are arranged in a straight line, and the rotation center of the pivot structure 3c is offset on the same side of the central axis of the blower assembly 1c and the central axis of the handle assembly 2c. The air outlet of the fan assembly 5c is connected to the blower assembly 1c, and the air inlet of the fan assembly 5c is located in the pivot structure 3c. When the blower assembly 1c rotates relative to the handle assembly 2c, it drives the fan assembly 5c to rotate as well, and keeps the air inlet of the fan assembly 5c in communication with the handle assembly 2c.

[0119] In this embodiment, a pivot structure 3c connects the blower assembly 1c and the handle assembly 2c, allowing them to rotate relative to each other. This adjusts the angle between the blower assembly 1c and the handle assembly 2c, enabling the folding hair dryer 100c to operate in both extended and bent states. In the extended state, the blower assembly 1c and the handle assembly 2c are arranged in a straight line, and the folding hair dryer 100c has a rod-like structure. This allows for easy connection and installation of hair combing accessories at the air outlet, ensuring better airflow along the hair's direction for easier combing or curling. Furthermore, the rotation center of the pivot structure 3c is offset to the same side of the central axis of both the blower assembly 1c and the handle assembly 2c. In the extended state, the pivot structure 3c does not occupy axial space along the axes of the blower assembly 1c and the handle assembly 2c, ensuring a smaller axial dimension of the folding hair dryer 100c in the extended state, making it easier for the user to operate.

[0120] Furthermore, connecting the air outlet of the fan assembly 5c to the air duct assembly 1c allows for better airflow towards the air outlet of the air duct assembly 1c. Conversely, placing the air inlet of the fan assembly 5c within the pivot structure 3c effectively utilizes the internal space of the pivot structure 3c, reducing the space occupied by the air duct assembly 1c. This results in a more compact structure and smaller volume for the air duct assembly 1c, allowing for better airflow from the fan assembly 5c to the air outlet, leading to higher airflow efficiency. Additionally, it allows for better connection between the fan assembly 5c and the handle assembly 2c, enabling smooth airflow into the fan assembly 5c. Moreover, the vibration of the fan assembly 5c does not directly affect the handle assembly 2c, being further away from the user's hand, resulting in less vibration perceived by the user.

[0121] The air duct assembly 1c and the handle assembly 2c can operate at any bending angle and at different angles, making the working state of the folding hair dryer 100c more versatile. When bent, the central axis of the air duct assembly 1c and the central axis of the handle assembly 2c form an angle, which is either a minor angle (greater than 0° and less than 180°) or a major angle (greater than 180° and less than 360°). The air duct assembly 1c and the handle assembly 2c can operate in an "L" or "V" shape to meet the needs of special usage environments. The wider adjustability of the air duct assembly 1c and the handle assembly 2c better meets the diverse needs of different users, making it more convenient and providing a better user experience.

[0122] Furthermore, the length of the air duct assembly 1c can be set to be less than the length of the handle assembly 2c, and the distance between the fan assembly 5c and the air outlet 11c of the air duct assembly 1c is closer. Compared with the traditional method of setting the fan assembly inside the handle assembly, the airflow blown out from the fan assembly 5c can obviously enter the air duct assembly 1c quickly, the air outlet path is shorter, and therefore the air outlet efficiency is higher.

[0123] Furthermore, when the air duct assembly 1c is shorter, the fan assembly 5c can be at least partially housed within the pivot structure 3c, thereby further making the structure more compact and the entire folding blower 100c smaller in size.

[0124] The air duct assembly 1c is provided with an air outlet 11c, which can be located at the end or periphery of the air duct assembly 1c. Preferably, the air outlet 11c is formed at the axial end of the air duct assembly 1c. An air inlet 21c can be provided on the air duct assembly 1c, and / or the handle assembly 2c, and / or the pivot structure 3c. Preferably, the air inlet 21c is provided on the handle assembly 2c. After the airflow enters the handle assembly 2c through the air inlet 21c, it flows along the handle assembly 2c to the pivot structure 3c, enters the air duct assembly 1c through the pivot structure 3c, and is blown out from the air outlet 11c along the air duct assembly 1c for user use.

[0125] By adjusting the relative angle between the air duct assembly 1c and the handle assembly 2c, the folding blower device 100c can switch between an extended state and a bent state to meet different user needs. Preferably, as shown in Figures 21 and 22, the central axis of the air duct assembly 1c and the central axis of the handle assembly 2c have an angle θ, wherein the angle θ is preferably 60°~180°. The angle between the air duct assembly 1c and the handle assembly 2c can be adjusted by driving the air duct assembly 1c and / or the handle assembly 2c to rotate via a drive mechanism, making the switching between various working states of the folding blower device 100c more intelligent; alternatively, the angle between the air duct assembly 1c and the handle assembly 2c can be adjusted manually, resulting in a simpler structure and lower cost.

[0126] In one embodiment, the rotation plane of the air duct assembly 1c (i.e., the plane through which the central axis of the air duct assembly 1c rotates) and the rotation plane of the handle assembly 2c (i.e., the plane through which the central axis of the handle assembly 2c rotates) can be set to be non-coplanar. For example, the rotation plane of the air duct assembly 1c and the rotation plane of the handle assembly 2c can be arranged parallel and / or intersecting, so that the air duct assembly 1c and the handle assembly 2c are misaligned in the rotation direction, thereby better realizing large-angle rotation. And / or, one of the air duct assembly 1c and the handle assembly 2c can rotate, and the angle between the two can be changed by the relative rotation of the air duct assembly 1c and the handle assembly 2c.

[0127] Preferably, during the relative rotation of the blower assembly 1c and the handle assembly 2c, the central axis of the blower assembly 1c and the central axis of the handle assembly 2c are always located on the same plane. The support between the blower assembly 1c and the handle assembly 2c remains aligned during rotation. Therefore, when the blower assembly 1c is rotated while holding the handle assembly 2c, the blower assembly 1c will not tilt to one side, making rotation easier and less strenuous, and providing a better user experience. Furthermore, it does not occupy excessive space along the axis of the pivot structure 3c, resulting in a more compact size for the folding hair dryer 100c.

[0128] The shape and size of the blower assembly 1c and the handle assembly 2c are not specifically limited, and can be square, polygonal, or irregular in shape. Preferably, both the blower assembly 1c and the handle assembly 2c are cylindrical with the same diameter, so that the external structure of the folding blower device 100c is more symmetrical and aesthetically pleasing when the blower assembly 1c and the handle assembly 2c are in the bent and extended states, and the grip is also more comfortable.

[0129] The air duct assembly 1c and the handle assembly 2c are set to rotate on a horizontal plane. Preferably, the pivot axis of the pivot structure 3c is set in the vertical direction. When in the extended state, the pivot axis of the pivot structure 3c is perpendicular to the central axis of the air duct assembly 1c and / or the central axis of the handle assembly 2c, so that the air duct assembly 1c and the handle assembly 2c rotate more smoothly and are not easy to twist or shake.

[0130] Specifically, when rotating from the extended state to the bent state, the first side of the duct assembly and the first side of the handle assembly move towards each other. In the extended state, on the orthogonal projection along the axis of the pivot structure 3c, the projections of the duct assembly 1c and the handle assembly 2c are both located on the same side of the projection of the plane containing the pivot axis of the pivot structure 3c; that is, the first side of the duct assembly 1c and / or the first side of the handle assembly 2c are both located on the plane containing the pivot axis, or both are located on the first side of the plane containing the pivot axis. When the diameters of the duct assembly 1c and the handle assembly 2c are equal, in the extended state, the first side of the duct assembly 1c and the first side of the handle assembly 2c are flush, and the pivot axis is exactly located on the plane containing the first side of the duct assembly 1c and the first side of the handle assembly 2c.

[0131] Alternatively, the pivot axis of the pivot structure 3c is located exactly on the straight line of the first side of the duct assembly 1c and / or the handle assembly 2c. In the radial direction along the duct assembly 1c and / or the handle assembly 2c, the portion of the pivot structure 3c protruding from the duct assembly 1c and / or the handle assembly 2c is less, resulting in a more compact structure in the radial direction and thus a smaller volume.

[0132] As shown in Figures 23 and 24, the blower assembly 5c is mainly used to guide the airflow from the outside of the folding blower 100c into the handle assembly 2c, and blow it into the air duct assembly 1c through the air outlet of the blower assembly 5c, so that the airflow can be blown out from the air outlet of the air duct assembly 1c, thereby forming a directional airflow that can act on the hair.

[0133] When the handle assembly 2c has an air inlet 21c, the air inlet end of the blower assembly 5c is connected to the handle assembly 2c, and the air outlet end of the blower assembly 5c is connected to the air duct assembly 1c. When switching between the extended and bent states, the rotation of the air duct assembly 1c can drive the blower assembly 5c to rotate together, while maintaining the connection between the air inlet end of the blower assembly 5c and the handle assembly 2c. This ensures that regardless of the working posture of the folding blower device 100c, the blower assembly 5c can better maintain its relative position with the air duct assembly 1c, ensuring that the airflow blown by the blower assembly 5c can better flow into the air duct assembly 1c, resulting in less wind resistance and higher air output efficiency.

[0134] Furthermore, as shown in Figures 23 and 24, in the extended state, the air duct assembly 1c and the handle assembly 2c are coaxially arranged. The central axis of the blower assembly 5c is in the same plane as the central axis of the air duct assembly 1c and the central axis of the handle assembly 2c, and they are intersecting. Since the folding blower 100c needs to maintain docking and communication with both the air duct assembly 1c and the handle assembly 2c simultaneously when switching between the extended and bent states, when at least a portion of the blower assembly 5c is housed within the pivot structure 3c, the central axis of the blower assembly 5c cannot be completely parallel to the central axis of the air duct assembly 1c. Therefore, the blower assembly 5c is tilted relative to the air duct assembly 1c to better accommodate the switching requirements between the extended and bent states of the folding blower 100c.

[0135] Specifically, as shown in Figures 25, 27, and 32, the fan assembly 5c includes a fan bracket 51c, a fan body 52c mounted on the fan bracket 51c, and a shock-absorbing structure 53c located between the fan body 52c and the fan bracket 51c. The shock-absorbing structure 53c has a wire-passing hole, which allows the conductor wire from the fan body 52c to pass through and be routed into the handle assembly 2c. The shock-absorbing structure 53c effectively reduces vibration, resulting in better grip comfort and a better user experience. Furthermore, the wire-passing hole on the shock-absorbing structure 53c helps to organize the conductor wire of the fan body 52c, making the internal structure of the folding blower 100c more compact and thus easier to assemble.

[0136] Preferably, as shown in Figures 31 to 33, the shock-absorbing structure 53c includes a shock-absorbing cylinder 531c and a wire guide block 532c disposed on the outer periphery of the shock-absorbing cylinder 531c. A wire guide hole 5321c is disposed on the wire guide block 532c. The shock-absorbing cylinder 531c is fixedly sleeved on the outer side of the fan body 52c and forms a wire guide gap with the inner side of the fan bracket 51c. The wire guide block 532c is disposed within the wire guide gap, allowing the conductor wire of the fan body 52c to pass through the wire guide gap and from the wire guide block 532c to the outside of the fan assembly 5c. One end of the conductor wire of the fan body 52c is connected to the end near its air inlet, and the other end of the conductor wire of the fan body 52c can be inserted into the wire guide gap to be accommodated between the shock-absorbing cylinder 531c and the fan bracket 51c, without being exposed on the outside of the fan assembly 5c, preventing the conductor wire from being scattered haphazardly. Finally, the wire passes through the through hole 5321c to connect with the circuit structure inside the folding blower 100c, making it less prone to errors in the connection of the conductor wire.

[0137] More preferably, the wire guide block 532c and the shock absorber 531c are integrally formed. The wire guide block 532c and the shock absorber 531c are manufactured as a single piece, which effectively reduces the number of assembly parts and improves assembly efficiency. Furthermore, the wire guide block 532c is positioned on the shock absorber 531c, making the wire guide hole 5321c more stable and less prone to shaking, thus ensuring a more stable and reliable connection of the conductor wire.

[0138] Both the fan bracket 51c and the shock absorber 531c are cylindrical and coaxial with the fan body 52c. This ensures that when the fan bracket 51c is installed inside the fan casing assembly 1c, the rotation of the fan body 52c will not cause polarization, thus better guaranteeing the operational stability of the fan assembly 5c.

[0139] Furthermore, the fan body 52c includes a fan housing, and a shock absorber 531c is sleeved on the outside of the fan housing, with openings at both ends covering the axial ends of the fan housing. The shock absorber 531c can be configured as an elastic rubber component. By firmly covering the outside of the fan body 52c, the shock absorber 531c is more reliably fixed to the fan body 52c, and the two are less prone to relative movement, thus providing better shock absorption for the fan body 52c.

[0140] Furthermore, as shown in Figures 32 and 33, a first stop protrusion 513c protrudes from the inner side of the fan bracket 51c, located near the air inlet end of the fan body 52c. The edge of one end of the shock absorber 531c abuts against the first stop protrusion 513c, and an annular protrusion 5311c is provided on the outer periphery of the other end of the shock absorber 531c. The annular protrusion 5311c abuts against the inner periphery of the fan body 52c to form an axial seal. A wire-passing gap is formed between the annular protrusion 5311c and the first stop protrusion 513c, and a wire-passing block 532c is located at the end of the shock absorber 531c where the annular protrusion 5311c is located. The annular protrusion 5311c seals the inside of the wire passage gap, preventing external dirt from entering the fan body 52c and affecting its operation. It also ensures a reliable connection between the fan bracket 51c and the shock absorber 531c.

[0141] Furthermore, as shown in Figure 31, the end of the wire hole 5321c away from the first stop protrusion 513c is at least partially notched. The fan bracket 51c is at least partially hollowed out at the corresponding notch, so that when the conductor wire of the fan body 52c passes through the notch, it can pass through the hollowed-out area radially along the shock absorber 531c. After the conductor wire passes through the fan assembly 5c, it will not occupy the axial space of the fan assembly 5c, but will be led out from the circumference of the fan assembly 5c, so as to better suit the electrical connection with the internal circuit structure of the folding blower 100c.

[0142] Furthermore, as shown in Figures 32 and 33, multiple protrusions 5312c are provided on the outer periphery of the shock-absorbing cylinder 531c. These protrusions 5312c are located within the wire passage gap, and at least some of them abut against the inner sidewall of the fan bracket 51c. The contact between the multiple protrusions 5312c and the fan bracket 51c enhances the strength of the peripheral sidewall of the fan bracket 51c. Simultaneously, the multiple protrusions 5312c act as a buffer, effectively mitigating the vibration intensity transmitted to the fan bracket 51c during the operation of the fan body 52c, thereby reducing the vibration intensity of the folding blower 100c.

[0143] Furthermore, as shown in Figures 25 and 31, the fan bracket 51c is provided with a first snap-fit ​​portion 511c and a first rotating portion 512c. The first snap-fit ​​portion 511c is located at the air outlet end of the fan bracket 51c and is used to snap-fit ​​with the first mating portion 611c inside the air duct assembly 1c. The first rotating portion 512c is located on the outer periphery of the fan bracket 51c and is adapted to be rotatably connected to the pivot shaft of the pivot structure 3c. This allows one end of the fan bracket 51c to be fixed inside the air duct assembly 1c, while the other end is rotatably installed inside the pivot structure 3c. When the folding blower 100c switches between working states, the fan assembly 5c can rotate around the rotation center of the pivot structure 3c.

[0144] Preferably, as shown in Figures 31 and 32, the fan bracket 51c is cylindrical with openings at both ends. The first locking portion 511c includes a locking hole 5111c at the end of the fan bracket 51c facing the fan duct assembly. The first rotating portion 512c includes a rotating hole 5121c on the outer periphery of the fan bracket 51c. The fan body 52c is disposed inside the fan bracket 51c. The rotation of the fan duct assembly 1c causes the fan bracket 51c to rotate relative to the pivot structure 3c, allowing the fan body 52c to rotate as well. The fan bracket 51c can more stably fix the fan body 52c inside the fan duct assembly 1c, thereby better ensuring the airflow direction.

[0145] Furthermore, referring to Figures 23 and 25, the folding blower 100c also includes a heating component 6c disposed within the air duct assembly 1c. The heating component 6c includes an air guide duct 61c and a heating element 62c. One end of the air guide duct 61c is connected to the fan bracket 51c, and the other end extends towards the air outlet of the air duct assembly 1c. The first mating part 611c includes a hook 6111c disposed at one end of the air guide duct 61c, which is correspondingly engaged with a locking hole 5111c. The heating element 62c is disposed within the air guide duct 61c and located at one end near the fan assembly 5c. The fan bracket 51c is fixed to the air guide duct 61c by the engagement of the hook 6111c with the locking hole 5111c. This allows the airflow blown out by the fan assembly 5c to flow better towards the heating element 62c after entering the air guide duct 61c, and after being heated by the heating element 62c, the airflow is blown out from the guide duct toward the air outlet of the fan assembly 1c.

[0146] Furthermore, a guide groove is formed at the end of the fan bracket 51c facing the guide tube 61c, with the groove opening facing the guide tube. A locking hole 5111c is provided on the outer wall of the guide groove, and the end of the guide tube 61c is inserted into the guide groove, such that the hook 6111c engages with the corresponding locking hole 5111c. This insertion and engagement of the guide tube 61c with the guide groove ensures a tight seal at the connection between the guide tube 61c and the fan bracket 51c. The heating assembly 6c also includes a sealing element located at the end of the guide tube 61c that abuts against the guide groove, sealing the space between the guide tube 61c and the bottom of the guide groove. The bottom of the guide groove is the side opposite to its opening. The sealing element is a sealing ring, which seals the gap between the air guide tube 61c and the guide groove. This further ensures the sealing effect at the connection between the air guide tube 61c and the fan bracket 51c, so that the airflow, after being blown out from the fan assembly 5c, all enters the air tube. The airflow does not flow arbitrarily and flows better toward the heating element 62c. All the airflow can flow better through the heating element 62c before flowing out of the air tube assembly 1c. Therefore, the temperature uniformity of the hot airflow is better, which can better ensure the hair drying effect.

[0147] Furthermore, the air guide duct 61c has a main body end and a connecting end that are arranged opposite to each other along the axial direction of the air duct assembly 1c. The main body end is fixed to the inner side of the air duct assembly 1c, and its central axis is parallel to the central axis of the air duct assembly 1c. The connecting end is connected to the fan bracket 51c, and its central axis is set at an angle to the central axis of the main body end. By bending and tilting the end of the air guide duct 61c, the air guide duct 61c can be better connected to the fan assembly 5c, avoiding the need to make the fan body 52c irregularly shaped, thus saving costs.

[0148] Specifically, for the pivoting structure, the duct assembly 1c has a first connecting end and a first free end opposite to each other along its axial direction, and the handle assembly 2c has a second connecting end and a second free end opposite to each other along its axial direction. The pivoting structure 3c connects the first connecting end and the second connecting end.

[0149] Referring to Figures 25 to 27, the pivot structure 3c includes a first rotating part 31c, a second rotating part 32c, and a blocking part 34c. The first rotating part 31c is located at the first connecting end of the air duct assembly 1c. The second rotating part 32c is located at the second connecting end of the handle assembly 2c and is rotatably connected to the first rotating part 31c. The first rotating part 512c is coaxially rotatably connected to the first rotating part 31c and the second rotating part 32c. The blocking part 34c is rotatably connected to the rotatable connection between the first rotating part 31c and the second rotating part 32c. In the extended state, the first connecting end and the second connecting end at least partially abut against each other, so that the blocking part 34c is completely located within the air duct assembly 1c and the handle assembly 2c. When switching from the extended state to the bent state, the first side of the air blower assembly 1c and the first side of the handle assembly 2c move closer to each other, while the second side of the air blower assembly 1c and the second side of the handle assembly 2c move further apart from each other. This results in the first connecting end and the second connecting end being at least partially spaced apart. The blocking part 34c can block the gap between the first connecting end and the second connecting end. Thus, when in the bent state, at least part of the blocking part 34c is exposed from the air blower assembly 1c and the handle assembly 2c. The blocking part 34c ensures the sealing of the folding blower device 100c.

[0150] Further, referring to Figure 27, the first rotating part 31c includes a first rotating sleeve 311c disposed at the first connecting end. The first rotating sleeve 311c protrudes from the shaft end of the air duct assembly 1c and is eccentrically disposed in the radial direction along the air duct assembly 1c. The axial direction of the first rotating sleeve 311c is perpendicular to the rotation plane where the air duct assembly 1c and the handle assembly 2c are located. Preferably, the first rotating sleeve 311c is integrally disposed with the air duct assembly 1c. The handle assembly 2c includes a first half-shell 22 and a second half-shell 23 connected to each other. The second rotating part 32c includes a first sleeve body 3211c and a second sleeve body 3212c connected to each other. The first sleeve body 3211c is connected to the first half-shell 22, and the second sleeve body 3212c is connected to the second half-shell 23. The first sleeve body 3211c and the second sleeve body 3212c are respectively rotatably connected to the two ends of the first rotating sleeve 311c along its axial direction to facilitate assembly. Preferably, the first body 3211c is integrally formed with the first half-shell 22, and the second body 3212c is integrally formed with the second half-shell 23, which reduces the number of assembly parts and makes assembly more convenient.

[0151] Specifically, the first rotating sleeve 311c is annularly arranged, and at least a portion of the first rotating sleeve 311c protrudes from the air duct assembly 1c radially, such that the central axis of the first rotating sleeve 311c is located on the first side of the air duct assembly 1c. Furthermore, a partition is provided on the inner annular side of the first rotating sleeve 311c, and a rotating column 3111c is provided on the partition. The rotating column 3111c is located at the center of the first rotating sleeve 311c. The air duct assembly 1c and the handle assembly 2c are respectively located at the two ends of the axial direction of the rotating column 3111c, and are rotatably connected to the two ends of the axial direction of the rotating column 3111c. The rotating hole 5121c of the fan assembly 5c is rotatably sleeved on the outside of the rotating column 3111c, allowing the fan assembly 5c to rotate relative to the rotating column 3111c.

[0152] Specifically, between one axial end of the rotating column 3111c and the first sleeve 3211c, one of them is provided with a first rotating cam, and the other is provided with a first rotating hole that rotatably engages with the first rotating cam, with the first rotating cam and the first rotating hole being rotatably connected. Between the other axial end of the rotating column 3111c and the second sleeve 3212c, one of them is provided with a second rotating cam, and the other is provided with a second rotating hole that rotatably engages with the second rotating cam, with the second rotating cam and the second rotating hole being rotatably connected.

[0153] The shielding portion 34c is arc-shaped and has a first connecting portion 341c and a second connecting portion 342c that are spaced apart from each other along the axial direction of its circumferential surface. The first connecting portion 341c and the second connecting portion 342c extend radially from the shielding portion 34c toward the center. The first connecting portion 341c connects one end of the rotating column 3111c along the axial direction and the first sleeve 3211c, and the second connecting portion 342c connects the other end of the rotating column 3111c along the axial direction and the second sleeve 3212c. The arc surface of the shielding portion 34c is concentric with the arc surface of the first rotating sleeve 311c, so that the shielding portion 34c can better form a shield when bent; and when extended, the shielding portion 34c can be better accommodated in the first cylinder 1 and the second cylinder 2.

[0154] Furthermore, as shown in Figures 23 and 24, the pivot structure 3c also includes a first limiting part 35c and a second limiting part 36c arranged at intervals along the circumference of the rotating column 3111c. When switching from the bent state to the extended state, the first cylinder 1 rotates relative to the blocking part 34c in a first direction, and the second cylinder 2 rotates relative to the blocking part 34c in a second direction. The first and second directions are opposite; if the first direction is clockwise, the second direction is counterclockwise; if the first direction is counterclockwise, the second direction is clockwise. In the extended state, the first limiting part 35c abuts against the first end of the blocking part 34c in the circumferential direction to restrict the first cylinder 1 from continuously rotating in the first direction, and the second limiting part 36c abuts against the second end of the blocking part 34c in the circumferential direction to restrict the second cylinder 2 from continuously rotating in the second direction, thereby allowing the first cylinder 1 and the second cylinder 2 to be better maintained in the extended state and not to sway arbitrarily.

[0155] As shown in Figures 26 and 30, the pivot structure 3c further includes a third limiting portion 37c and a fourth limiting portion 38c arranged at intervals along the circumference of the rotating column 3111c. When switching from the extended state to the bent state, the first cylinder 1 rotates relative to the blocking portion 34c in a second direction, and the second cylinder 2 rotates relative to the blocking portion 34c in a first direction. In the bent state, the third limiting portion 37c abuts against at least a portion of the blocking portion 34c to restrict the first cylinder 1 from continuously rotating in the second direction, and the fourth limiting portion 38c abuts against at least a portion of the blocking portion 34c to restrict the second cylinder 2 from continuously rotating in the first direction. This allows the first cylinder 1 and the second cylinder 2 to be better maintained in the bent state, preventing them from swaying unnecessarily, thus enabling them to operate more effectively in the bent state.

[0156] As shown in Figures 28 to 30, the fan assembly 5c also includes a venting sleeve 7c, which is fitted onto the air inlet end of the fan bracket 51c. The venting sleeve 7c has a sleeve body fitted onto the outside of the fan bracket 51c, multiple venting holes located on the inside of the sleeve body, and a limiting protrusion 381c protruding from the outside of the sleeve body. The limiting protrusion 381c extends radially outward from the outer peripheral sidewall of the sleeve body. A limiting rib 343c protrudes from the inside of the shielding portion 34c, forming a fourth limiting portion 38c. When in a bent state, the limiting protrusion 381c and the limiting rib 343c engage to prevent the second cylinder 2 from continuing to rotate in the bending direction, thereby keeping the second cylinder 2 in a bent state for operation.

[0157] The air outlet end of the fan bracket 51c is fixed inside the first cylinder 1 and is fitted against one side wall of the first cylinder 1. The air inlet end of the fan bracket 51c is fixed to the first rotating sleeve 311c. The bend transition between the air inlet end and the air outlet end of the fan bracket 51c forms a first limiting part 35c. When in the extended state, one end of the blocking part 34c abuts against the outside of the fan bracket 51c, and the other end of the blocking part 34c abuts against the connection transition between the second cylinder 2 and the first rotating sleeve 311c, thereby keeping the folding blower 100c in the extended state for operation. The third limiting part 37c includes a first boss 371 protruding from the end of the second sleeve 3212c and a second boss 372 protruding from the first sleeve 3211c. When in a bent state, one side of the first connecting part 341c and one side of the second connecting part 342c of the blocking part 34c abut against the first boss 371 and the second boss 372 respectively, so as to restrict the first cylinder 1 from continuing to rotate in the bending direction, thereby keeping the first cylinder 1 in a bent working state.

[0158] Example 4

[0159] Referring to Figures 34 to 43, this application specifically provides a folding blower device 100d. It should be noted that the folding blower device 100d in this specific embodiment 4 can be the folding blower device in specific embodiment 1 above, or it can be other folding blower devices different from those in specific embodiment 1 above. Similarly, one or more embodiments in this specific embodiment 4 can be combined with one or more embodiments in specific embodiments 2 and 3 above, and should also have the effects possessed by the above embodiments, which will not be elaborated further.

[0160] This application provides a folding hair dryer 100d. Specifically, please refer to Figures 34 to 36. In this embodiment, the folding hair dryer 100d includes a first cylindrical body 1d, a second cylindrical body 2d, and a shielding member 3d. The first cylindrical body 1d includes a first cylindrical main body 11d and a first rotating portion 12d protruding from one axial end of the first cylindrical main body 11d. The second cylindrical body 2d includes a second cylindrical main body 21d and a second rotating portion 22d protruding from one axial end of the second cylindrical main body 21d. The first rotating portion 12d and the second rotating portion 22d are pivotally connected, allowing the first cylindrical main body 11d and the second cylindrical main body 21d to rotate relative to each other, exhibiting an extended state and a bent state. The peripheral surfaces at the pivotal docking point of the first rotating portion 12d and the second rotating portion 22d are at least partially open. The shielding member 3d is detachably connected to the first rotating portion 12d and / or the second rotating portion 22d and covers the open portion of the first rotating portion 12d and the second rotating portion 22d. In the extended state, the first cylindrical body 11d and the second cylindrical body 21d are arranged in a straight line, and the pivot centers of the first rotating part 12d and the second rotating part 22d are offset on the same side of the central axis of the first cylindrical body 11d and the central axis of the second cylindrical body 21d, with the blocking member 3d located inside the first cylindrical body 11d and the second cylindrical body 21d. In the bent state, the first rotating part 12d and the second rotating part 22d rotate relative to each other, causing the blocking member 3d to protrude from the first cylindrical body 11d and the second cylindrical body 21d.

[0161] In this embodiment, the first cylinder 1d can be configured as a blower, and the second cylinder 2d can be configured as a handle. The first cylinder 1d and the second cylinder 2d are rotatably connected by the first rotating part 12d and the second rotating part 22d, allowing the first cylinder 1d and the second cylinder 2d to be used in a bent state and an extended state, providing more versatility in usage. Furthermore, the pivot centers of the first rotating part 12d and the second rotating part 22d are offset on the same side of the central axis of the first cylinder 1d and the central axis of the second cylinder 2d. In the extended state, the first rotating part 12d and the second rotating part 22d do not occupy axial space along the axial direction of the first cylinder 1d and the second cylinder 2d, better ensuring that the axial dimension of the folding blower 100d is smaller in the extended state, making it easier for the user to operate. Furthermore, the first rotating part 12d and the second rotating part 22d are at least partially open on the periphery of the docking point. On the one hand, this facilitates the rotational connection between the first rotating part 12d and the second rotating part 22d. On the other hand, the shielding member 3d covers the open part of the first rotating part 12d and the second rotating part 22d, which can better seal the connection between the first cylinder 1d and the second cylinder 2d. Moreover, the overall wall thickness of the shielding member 3d is smaller, which makes the internal space of the first rotating part 12d and the second rotating part 22d larger. Therefore, the airflow path is smoother, and the air output effect of the folding blower 100d is also better.

[0162] Preferably, during the relative rotation of the first cylinder 1d and the second cylinder 2d, the central axis of the first cylinder 1d and the central axis of the second cylinder 2d are always located on the same plane. The mutual support between the first cylinder 1d and the second cylinder 2d is always in a centered state during the rotation. Therefore, when holding the second cylinder 2d and rotating the first cylinder 1d, the first cylinder 1d will not tilt to one side, making the first cylinder 1d easier and less strenuous to rotate, and providing a better feel for the user.

[0163] In one embodiment, the first cylindrical body 11d and the second cylindrical body 21d are approximately the same length along their respective axial directions.

[0164] In another embodiment, the axial length of the first cylinder body 11d is less than the axial length of the second cylinder body 21d. Since the first cylinder body 1d is the air outlet, setting the length of the air outlet to be shorter will result in a shorter flow path for the hot airflow formed after the airflow is heated by the heating component, resulting in less heat loss and thus higher airflow efficiency.

[0165] The shape and size of the first cylindrical body 11d and the second cylindrical body 21d are not specifically limited, and can be square, polygonal, or irregular in shape. Preferably, both the first cylindrical body 11d and the second cylindrical body 21d are cylindrical and have the same diameter, so that when the first cylindrical body 11d and the second cylindrical body 21d are in the bent state and the extended state, the external structure of the folding blower 100d is more symmetrical, more aesthetically pleasing, and more comfortable to hold.

[0166] Specifically, when rotating from the extended state to the bent state, the first side of the first cylindrical body 11d and the first side of the second cylindrical body 21d move toward each other. Preferably, the pivot axis of the first rotating part 12d and the second rotating part 22d is located exactly on the straight line of the first side of the first cylindrical body 11d and / or the second cylindrical body 21d.

[0167] The first rotating part 12d and the second rotating part 22d are nested and connected, so that the first cylinder body 11d and the second cylinder body 21d can rotate better along the same plane. The distance between them is closer and the axial dimension is shorter along the first cylinder body 11d or the second cylinder body 21d. In the radial direction along the first cylinder body 11d or the second cylinder body 21d, they are on the same plane. The dimensions of the entire folding blower 100d are smaller in all directions, so the volume can be smaller.

[0168] Specifically, referring to Figures 36 to 38, the first rotating part 12d includes a first rotating sleeve 121d, a mounting base plate 122d disposed inside the first rotating sleeve 121d, and a rotating column 123d disposed on the mounting base plate 122d. The first rotating sleeve 121d is open at both ends, and its peripheral sidewalls are not fully circumferential, forming at least a first opening. During rotation, the first opening remains connected to both the first cylinder body 11d and the second cylinder body 21d. Preferably, the first rotating sleeve 121d, the mounting base plate 122d, and the rotating column 123d are integrally formed.

[0169] The second rotating part 22d includes a second rotating sleeve 221d sleeved outside the first rotating sleeve 121d, and a first cover plate 222d and a second cover plate 223d disposed at both ends of the second rotating sleeve 221d along its axial direction. The first cover plate 222d and the second cover plate 223d are respectively rotatably connected to the rotating column 123d. The second rotating sleeve 221d is also open at both ends, and the peripheral sidewall of the second rotating sleeve 221d is not a complete circle, so as to form at least a second opening. The first opening and the second opening are opposite to each other, and during the rotation of the second cylinder 2d, the second opening is kept in communication with both the first cylinder body 11d and the second cylinder body 21d.

[0170] The mounting base plate 122d is horizontally positioned inside the first rotating sleeve 121d, with one side of the mounting base plate 122d facing the first cover plate 222d and the other side facing the second cover plate 223d. Both the first cover plate 222d and the second cover plate 223d are detachably connected to the second rotating sleeve 221d. A shielding member 3d covers the first and second openings and is connected to the rotating column 123d, thereby better sealing the openings of the first rotating part 12d and the second rotating part 22d, preventing external dust and other contaminants from entering the folding blower device 100d.

[0171] Further, as shown in Figure 36, the second cylindrical body 21d includes a first half-cylinder 211d and a second half-cylinder 212d connected together, so as to facilitate the installation of circuit structures or other components within the second cylindrical body 21d. The first half-cylinder 211d and the second half-cylinder 212d can be connected and fixed by screws and / or clips. Correspondingly, the second rotating sleeve 221d includes abutting first rotating half-sleeve 2211d and second rotating half-sleeve 2212d, with a first cover plate 222d and a second cover plate 223d connected and respectively covering both ends of the axial direction of the first rotating sleeve 221d. The connection between the first cover plate 222d and the second cover plate 223d can be located on the side away from the second cylindrical body 21d. The connection between the first cover plate 222d and the second cover plate 223d makes it less likely for gaps to form at the joint of the first rotating half-sleeve 2211d and the second rotating half-sleeve 2212d, resulting in a tighter connection.

[0172] Specifically, a connecting post 2221d protrudes from the first cover plate 222d, and a connecting hole is provided on the second cover plate 223d to connect and mate with the connecting post 2221d. The first cover plate 222d and the second cover plate 223d are connected and fixed by screws or bolts passing through the connecting post 2221d and the connecting hole.

[0173] Since the first rotating sleeve 121d and the second rotating sleeve 221d will rotate relative to each other, further, as shown in Figures 36 and 38, a through hole 1221d is provided on the mounting base plate 122d. The connecting post 2221d can pass through the through hole 1221d and connect to the connecting hole. The through hole 1221d is arranged in an arc shape with the rotating post 123d as the center. This allows the connecting post 2221d to move along the through hole 1221d during the rotation of the first rotating sleeve 121d and the second rotating sleeve 221d. On the one hand, the through hole 1221d can avoid the connecting post 2221d; on the other hand, the through hole 1221d can limit the movement stroke of the connecting post 2221d, thereby limiting the relative rotation angle of the first cylinder 1d and the second cylinder 2d.

[0174] The mounting base plate 122d is equipped with a stop plate, and the first cover plate 222d or the second cover plate 223d is equipped with a telescopic contact. The stop plate has two or more stop slots. When the folding blower 100d is in the extended state, the telescopic contact is engaged in one of the stop slots and emits a locking beep, indicating that it is properly engaged. At this time, the folding blower 100d can remain in the extended state for operation. When the user rotates the first cylinder 1d and / or the second cylinder 2d, the telescopic contact can be driven out of the stop slot and move along the stop plate. When the telescopic contact moves to the next stop slot, it emits another locking beep, indicating that it is properly engaged. At this time, the folding blower 100d can remain in the bent state for operation. This allows the folding blower 100d to better maintain both the extended and bent states for operation.

[0175] One of the aforementioned first cover plate 222d or second cover plate 223d can be configured as a display bracket. Specifically, the first cover plate 222d is configured as a display bracket. The folding hair dryer 100d may also include a display screen, which is mounted on the display bracket and sleeved on one axial end of the second rotating sleeve 221d. The aforementioned connecting column 2221d can be mounted on the display bracket. This allows the display screen to better show the working status of the folding hair dryer 100d. The display screen can be configured as a touch screen, displaying the working level, working temperature, and / or working mode of the folding hair dryer 100d, etc. The working status of the folding hair dryer 100d can also be adjusted and switched through the display screen, making the operation of the folding hair dryer 100d more intelligent and effectively improving the user experience.

[0176] As shown in Figure 36, the shielding member 3d is configured as a shielding cover 31d. The shielding cover 31d has an arc-shaped shielding wall 311d, with its two ends extending into the first cylindrical body 11d and the second cylindrical body 2d respectively. The first cylindrical body 1d and the second cylindrical body 2d are rotatable relative to the shielding cover 31d. This ensures that the shielding wall 311d and the first cylindrical body 11d and the second cylindrical body 21d maintain at least partial overlap, minimizing gaps and guaranteeing a better shielding effect.

[0177] Preferably, the central angle of the arc surface where the shielding wall 311d is located is greater than the relative rotation angle of the first cylindrical body 11d and the second cylindrical body 21d. This ensures that the shielding wall 311d can always provide shielding during the rotation of the first cylindrical body 11d and the second cylindrical body 21d.

[0178] Furthermore, the arc surface of the shielding wall 311d is concentrically arranged with the first rotating sleeve 121d and the second rotating sleeve 221d. The shielding cover 31d also has a first connecting portion 312d and a second connecting portion 313d extending radially along the shielding wall 311d and spaced apart along the axial direction of the shielding wall 311d. Both the first connecting portion 312d and the second connecting portion 313d are sleeved on the rotating column 123d. The first connecting portion 312d connects between the first cover plate 222d and the mounting base plate 122d, and the second connecting portion 313d connects between the second cover plate 223d and the mounting base plate 122d. The first connecting portion 312d and the second connecting portion 313d can better install the shielding cover 31d at the first rotating portion 12d and the second rotating portion 22d, and both the first rotating portion 12d and the second rotating portion 22d can rotate relative to the shielding cover 31d.

[0179] The first connecting part 312d and the second connecting part 313d are both provided with mating holes at their ends, which are fitted onto the outer side of the rotating column 123d. Multiple protrusions protrude from the inner circumference of the mating hole, spaced apart circumferentially to abut against the outer side of the rotating column 123d. This ensures a point-to-surface fit between the first connecting part 312d and the rotating column 123d, and between the second connecting part 313d and the rotating column 123d. This prevents the shield 31d from rotating when the first cylinder 1d and the second cylinder 2d rotate, better ensuring the position of the shield 31d and making rotation of the first cylinder body 11d and the second cylinder body 21d easier.

[0180] Furthermore, the folding blower device 100d also includes a first limiting part and a second limiting part arranged at intervals along the circumference of the rotating column 123d. When switching from a bent state to an extended state, the first cylinder 1d rotates relative to the blocking member 3d in a first direction, and the second cylinder 2d rotates relative to the blocking member 3d in a second direction. In the extended state, the first limiting part abuts against the first end of the blocking member 3d in the circumferential direction to limit the continuous rotation of the first cylinder 1d in the first direction, and the second limiting part abuts against the second end of the blocking member 3d in the circumferential direction to limit the continuous rotation of the second cylinder 2d in the second direction.

[0181] Furthermore, as shown in Figures 37 to 40, the folding blower device 100d also includes a fan assembly 5d and an air venting sleeve 6d. The fan assembly 5d includes a fan bracket 51d and a fan body 52d disposed within the fan bracket 51d. The air venting sleeve 6d is fitted onto the air inlet end of the fan bracket 51d. As shown in Figure 43, the air venting sleeve 6d has a sleeve body fitted onto the outside of the fan bracket 51d, multiple air vents disposed on the inside of the sleeve body, and a limiting protrusion 441d protruding from the outside of the sleeve body. The limiting protrusion 441d extends radially outward from the outer peripheral sidewall of the sleeve body. A limiting rib 314d is provided on the inner side of the shielding part, and a limiting protrusion 441d is formed to form a fourth limiting part 44d. When in a bent state, the limiting protrusion 441d and the limiting rib 314d cooperate to restrict the second cylinder 2d from continuing to rotate in the bending direction, thereby keeping the second cylinder 2d in a bent state for operation.

[0182] The air outlet end of the fan bracket 51d is fixed inside the first cylinder body 11d and is fitted against the inner side wall of the first cylinder body 11d. The air inlet end of the fan bracket 51d is fixed to the first rotating part 12d. The bend transition between the air inlet end and the air outlet end of the fan bracket 51d forms a first limiting part 35. In the extended state, one end of the blocking member 3d abuts against the outside of the fan bracket 51d, and the other end of the blocking member 3d abuts against the connection transition between the second cylinder body 21d and the second rotating part 22d, thereby keeping the folding blower in the extended state for operation. As shown in Figures 41 and 42, the third limiting part 43d includes a first boss 431d protruding from the inner side of the second cover plate and a second boss 432d protruding from the display bracket. When in a bent state, one side of the first connecting part 312d and one side of the second connecting part 313d of the blocking member abut against the first boss 431d and the second boss 432d respectively, so as to restrict the first cylinder 1d from continuing to rotate in the bending direction, thereby keeping the first cylinder 1d and the second cylinder 2d in a bent working state.

[0183] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structure made using the content of this application specification and drawings, or directly or indirectly applied to other related technical fields, is similarly included within the patent protection scope of this application.

Claims

1. A folding blower device, wherein, include: First cylinder and second cylinder; A pivoting structure pivotally connects the first cylinder and the second cylinder, allowing the first cylinder and the second cylinder to rotate relative to each other. 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. The first cylinder and the second cylinder have a folded state arranged in parallel, an extended state with one end opposite to the other, and a bent state during their relative rotation. In the bent state, the central axis of the first cylinder and the central axis of the second cylinder are set at an angle, and the angle is either a minor angle or a major angle.

2. The folding blower device as described in claim 1, wherein, The first cylinder and the second cylinder can reciprocate between the folded state, the bent state and the extended state in sequence, such 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 0~180°.

3. The folding blower device as described in claim 2, wherein, When in the folded state, the first side of the first cylinder and the first side of the second cylinder are parallel and / or abut against each other.

4. The folding blower device as described in claim 2, wherein, The first cylinder has a first end and a second end that are opposite each other along its axial direction, and the second cylinder has a first end and a second end that are opposite 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 oriented in a direction away from the second cylinder, and the second end of the second cylinder is oriented in a direction away from the first cylinder. The first end and the second end of the first cylinder, as well as the first end and the second end of the second cylinder, are all on the same straight line.

5. The folding blower device as described in claim 1, wherein, The pivoting structure includes: Shaft body section; The first rotating part is rotatably sleeved on the outside of the shaft part and connected to the first cylindrical body; The second rotating part is rotatably sleeved on the outside of the shaft part and connected to the second cylinder; The first rotating part and the second rotating part can rotate relative to each other.

6. The folding blower device as described in claim 5, 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 together.

7. The folding blower device as described in claim 5, wherein, The first rotating part includes a first rotating sleeve, which is disposed at one end of the first cylinder along its axial direction; the second rotating part includes a second rotating sleeve, which is disposed 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 part.

8. The folding blower device as described in claim 7, wherein, The first rotating sleeve is integrally formed with the first cylindrical body; and / or, The second rotating sleeve is integrally formed with the second cylinder.

9. The folding blower device as described in claim 8, wherein, The second cylindrical body includes 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 on both ends of the first rotating sleeve along its axial direction.

10. The folding blower device as described in claim 9, wherein, 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 the first rotating sleeve is provided with a plurality of air passage holes.

11. A folding blower device, wherein, include: First cylinder and second cylinder; A pivoting structure pivotally connects the first cylinder and the second cylinder, allowing the first cylinder and the second cylinder to rotate relative to each other. The pivoting axis of the pivoting structure is perpendicular to the central axis of the first cylinder and / or the central axis of the second cylinder. The first cylinder and the second cylinder have a folded state arranged in parallel, an extended state with one end opposite to the other, and a bent state during their relative rotation. In the bent state, the central axis of the first cylinder and the central axis of the second cylinder are set at an angle, and the angle is either a minor angle or a major angle.

12. The folding blower device as described in claim 11, wherein, When in the folded state, the first side of the first cylinder and the first side of the second cylinder are arranged opposite to each other, wherein the shape of the first side of the first cylinder is adapted to the shape of the first side of the second cylinder.

13. The folding blower device as described in claim 11, wherein, When in the extended state, the first cylinder and the second cylinder are coaxially arranged, and the included angle θ = 180°.

14. The folding blower device as described in claim 11, wherein, When in the extended state, on the orthogonal projection along the axial direction of the pivot structure, the projections of the first cylinder and the second cylinder are both located on the same side of the projection of the plane containing the pivot axis of the pivot structure.

15. The folding blower device as described in claim 14, wherein, The first cylinder and the second cylinder have the same diameter, and when in the extended state, the first cylinder and the second cylinder are coaxially arranged. The distance between the plane containing the central axis of the first cylinder and / or the plane containing the central axis of the second cylinder and the plane containing the pivot axis of the pivot structure is set as H, wherein the distance H is greater than or equal to 0 or less than or equal to the radius of the first cylinder.

16. The folding blower device as described in claim 15, wherein, When in the extended state, the first side of the first cylinder and the first side of the second cylinder are flush, and the pivot axis is located on the plane containing the first side of the first cylinder and the first side of the second cylinder, and the distance H is equal to the radius of the first cylinder.

17. The folding blower device as claimed in claim 11, wherein, The plane containing the pivot axis of the pivot structure is defined as plane S1. When in the extended state, if one of the first cylinder and the second cylinder has a protrusion extending from the first side of plane S1 to the second side of plane S1, the other cylinder is provided with a clearance space located on the first side of plane S1. The clearance space is suitable for accommodating the protrusion.

18. The folding blower device as claimed in claim 17, wherein, The shape of the clearance space is adapted to the shape of the protrusion.

19. The folding blower device as claimed in claim 11, wherein, The first cylinder and the second cylinder have the same length along their respective axial directions; and / or, Both the first cylinder and the second cylinder are cylindrical and have the same diameter.

20. The folding blower device as claimed in claim 11, wherein, The first cylinder is provided with an air outlet, the second cylinder is provided with an air inlet, and the pivot structure is provided with an air passage, which connects the air inlet and the air outlet.

21. A folding blower device, wherein, include: Air duct assembly and handle assembly; A pivoting structure pivotally connects the air duct assembly and the handle assembly, allowing the air duct assembly and the handle assembly to rotate relative to each other; A switch assembly is disposed on the handle assembly and close to the pivot structure. The switch assembly has a push button that is at least partially exposed on the outside of the handle assembly. The push button is movable relative to the handle assembly to have a first working position, a second working position, and a third working position. The push button is moved along a first direction under the action of an external force, and can move from the first working position to the second working position; when the push button is in the second working position and is subjected to a continuous force along the first direction, the push button can move to the third working position, and when the force on the push button is removed at the third working position, the push button can automatically reset from the third working position to the second working position.

22. The folding blower device as described in claim 21, wherein, The first working position, the second working position, and the third working position are arranged sequentially along the axial direction of the handle assembly.

23. The folding blower device as described in claim 21, wherein, The handle assembly has a first through hole, and the push button includes: A skateboard is slidably mounted on the handle assembly; A button is detachably mounted on the slide plate and located within the first through hole, with at least a portion of the button exposed through the first through hole; When the button is subjected to an external force, it moves relative to the first through hole, causing the slide plate to move as well.

24. The folding blower device as described in claim 23, wherein, The switch assembly further includes a button plate disposed on the handle assembly and a switch head movably disposed on the button plate. The slide plate is connected to the switch head, and the switch head has three positions, which respectively correspond to the first working position, the second working position and the third working position of the push button.

25. The folding blower device as described in claim 24, wherein, The switch assembly further includes a reset member. When the push button is in the third working position and the external force on the button is removed, the reset member can drive the slide plate to move from the third working position to the second working position.

26. The folding blower device as described in claim 25, wherein, The reset component is configured as an elastic telescopic component; When in the second working position, the locking force of the switch head at its position is greater than the elastic force of the elastic telescopic member, and the push button remains in the second working position; when in the third working position, the elastic restoring force of the elastic telescopic member is greater than the locking force of the switch head, driving the push button to move from the third working position to the second working position.

27. The folding blower device as described in claim 24, wherein, The handle assembly includes an inner handle cylinder and an outer handle cylinder sleeved on the outside of the inner handle cylinder. The inner handle cylinder is provided with a receiving groove, the button plate is disposed in the receiving groove, and the sliding plate is slidably disposed at the opening of the receiving groove. The first through hole is provided on the outer cylinder of the handle, and the first through hole is opposite to the opening of the receiving groove.

28. The folding blower device as described in claim 27, wherein, The inner cylinder of the handle includes a first half-cylinder and a second half-cylinder connected to each other, and the receiving groove is located on the outside of the first half-cylinder and close to the pivot structure. One of the first half-cylinder and the second half-cylinder is provided with multiple hooks, and the other half-cylinder is provided with multiple buckles. The multiple hooks and the multiple buckles are engaged one-to-one to connect and fix the first half-cylinder and the second half-cylinder. The outer cylinder of the handle is sleeved on the outside of the first half-cylinder and the second half-cylinder, and the first through hole is opposite to the receiving groove.

29. The folding blower device as described in claim 28, wherein, The slide plate includes a main body, two sliding arms protruding from the bottom of the main body, and two clamping arms protruding from the bottom of the main body. Each sliding arm extends along the axial direction of the handle assembly, and the two clamping arms are arranged at relative intervals along the axial direction of the handle assembly to clamp the two sides of the switch head. The receiving groove has two support arms arranged opposite each other on its side wall. Each of the two support arms has a sliding groove with an opening opposite to the other, and the two sliding arms are slidably engaged in the two sliding grooves. The main body of the plate is provided with a second through hole, and the button is locked at the second through hole and extends out from the first through hole.

30. The folding blower device as described in claim 27, wherein, The inner cylinder of the handle is provided with a plurality of air passage holes at the end away from the receiving groove, and the plurality of air passage holes are arranged to protrude from the outer cylinder of the handle. The handle assembly also includes a filter cylinder, which is sleeved on the inner cylinder of the handle and extends out of the outer cylinder of the handle, and has an air inlet hole that communicates with the plurality of air passage holes.

31. A folding blower device, wherein, include: Air duct assembly and handle assembly; A pivoting structure pivotally connects the air duct assembly and the handle assembly, allowing the air duct assembly and the handle assembly to rotate relative to each other to have an extended state and a bent state; in the extended state, the air duct assembly and the handle assembly are arranged in a straight line, and the rotation center of the pivoting structure is offset on the same side of the central axis of the air duct assembly and the central axis of the handle assembly. A fan assembly, wherein the air outlet of the fan assembly is connected to the air duct assembly, and the air inlet of the fan assembly is located in the pivot structure. The air duct assembly rotates relative to the handle assembly, causing the fan assembly to rotate together, and keeping the air inlet of the fan assembly in communication with the handle assembly.

32. The folding blower device as described in claim 31, wherein, The fan assembly includes a fan bracket, a fan body mounted on the fan bracket, and a shock-absorbing structure disposed between the fan body and the fan bracket. The shock-absorbing structure has a wire-passing hole, which is adapted to allow a conductor wire from the fan body to pass through and be inserted into the handle assembly.

33. The folding blower device as described in claim 32, wherein, The vibration damping structure includes a vibration damping cylinder and a wire guide block disposed on the outer periphery of the vibration damping cylinder. The wire guide hole is disposed on the wire guide block. The vibration damping cylinder is fixedly sleeved on the outer side of the fan body and forms a wire guide gap with the inner side of the fan bracket. The wire guide block is disposed in the wire guide gap, so that the conductor wire of the fan body can pass through the wire guide gap and pass through the wire guide block to the outside of the fan assembly.

34. The folding blower device as described in claim 33, wherein, The wire guide block and the shock absorber are integrally formed; and / or, Both the fan support and the shock absorber are cylindrical and coaxial with the fan body.

35. The folding blower device as described in claim 33, wherein, The main body of the fan includes a fan casing, and the shock absorber is sleeved on the outside of the fan casing, with openings at both ends that cover the two ends of the fan casing along the axial direction. The inner side of the fan bracket has a first stop protrusion. The edge of one end of the shock absorber abuts against the first stop protrusion. The outer circumference of the other end of the shock absorber has an annular protrusion. The annular protrusion abuts against the inner circumference of the fan body to form an axial seal. The annular protrusion and the first stop protrusion form the wire passage gap. The wire passage block is located at the end of the shock absorber with the annular protrusion.

36. The folding blower device as described in claim 35, wherein, The wire passage hole is at least partially notched at the end away from the first stop protrusion; The fan bracket is at least partially hollowed out at the corresponding notch, so that when the conductor wire of the fan body passes through the notch, it can pass out from the hollowed-out area along the radial direction of the shock absorber.

37. The folding blower device as described in claim 33, wherein, The outer periphery of the shock absorber is provided with multiple protrusions, which are located within the wire passage gap, and at least a portion of the protrusions abut against the inner wall of the fan bracket.

38. The folding blower device as described in claim 32, wherein, The fan bracket is provided with a first snap-fit ​​part and a first rotating part. The first snap-fit ​​part is located at the air outlet end of the fan bracket and is used to snap-fit ​​with the first mating part inside the fan duct assembly. The first rotating part is located on the outer periphery of the fan assembly and is adapted to be rotatably connected to the pivot shaft of the pivot structure.

39. The folding blower device as described in claim 38, wherein, The first snap-fit ​​portion includes a snap-fit ​​hole at one end of the fan bracket facing the fan duct assembly; the first rotating portion includes a rotating hole on the outer periphery of the fan bracket; the rotation of the fan duct assembly causes the fan bracket to rotate relative to the pivot structure, so that the fan body can rotate together.

40. The folding blower device as described in claim 39, wherein, The folding blower also includes an air guide tube disposed within the air duct assembly. One end of the air guide tube is connected to the fan bracket, and the other end extends toward the air outlet of the air duct assembly. The first mating part includes a hook disposed at one end of the air guide tube, and the hook is engaged with the corresponding locking hole. The end of the fan bracket facing the air guide tube has a guide groove, and the locking hole is provided on the outer wall of the guide groove; the end of the air guide tube is inserted into the guide groove, and the hook engages with the corresponding locking hole. The folding blower also includes a sealing element, which is disposed at the end of the air guide tube that abuts against the guide groove to seal between the air guide tube and the bottom of the guide groove.

41. A folding blower device, wherein, include: The first cylinder includes a first cylinder body and a first rotating part that protrudes from one end of the first cylinder body along its axial direction; The second cylinder includes a second cylinder body and a second rotating part protruding from one end of the second cylinder body along its axial direction; the first rotating part and the second rotating part are pivotally connected, so that the first cylinder body and the second cylinder body can rotate relative to each other to have an extended state and a bent state, and the peripheral side surface of the pivot docking point of the first rotating part and the second rotating part is at least partially open. A shielding member is detachably connected to the first rotating part and / or the second rotating part, and covers the open parts of the first rotating part and the second rotating part; When in the extended state, the first cylindrical body and the second cylindrical body are arranged in a straight line, and the pivot centers of the first rotating part and the second rotating part are offset on the same side of the central axis of the first cylindrical body and the central axis of the second cylindrical body, and the blocking member is located inside the first cylindrical body and the second cylindrical body; When in the bent state, the first rotating part and the second rotating part rotate relative to each other, so that the shielding member is exposed from the first cylinder body and the second cylinder body.

42. The folding blower device as described in claim 41, wherein, The shielding component is configured as a shielding cover, which has a shielding wall arranged in an arc shape. The shielding wall extends into the first cylindrical body and the second cylindrical body at its two ends along its circumference, respectively. The first cylindrical body and the second cylindrical body are rotatable relative to the shielding cover.

43. The folding blower device as described in claim 42, wherein, The central angle of the arc surface where the shielding wall is located is greater than the relative rotation angle between the first cylindrical body and the second cylindrical body.

44. The folding blower device as described in claim 42, wherein, The first rotating part includes a first rotating sleeve, a mounting base plate disposed inside the first rotating sleeve, and a rotating column disposed on the mounting base plate; The second rotating part includes a second rotating sleeve sleeved on the outside of the first rotating sleeve, and a first cover plate and a second cover plate disposed at both ends of the second rotating sleeve along the axial direction. The first cover plate and the second cover plate are respectively rotatably connected to the rotating column. The first rotating sleeve has a first opening that communicates with the second cylindrical body, and the second rotating sleeve has a second opening that communicates with the first cylindrical body. The shielding member covers the first opening and the second opening and is connected to the rotating column.

45. The folding blower device as described in claim 44, wherein, The second cylinder body includes a first half cylinder and a second half cylinder connected to each other. The second rotating sleeve includes a first rotating half sleeve and a second rotating half sleeve that abut against each other. The first cover plate and the second cover plate are connected and respectively cover both ends of the first rotating sleeve along the axial direction.

46. ​​The folding blower device as described in claim 44, wherein, The arc surface where the shielding wall is located is concentrically arranged with the first rotating sleeve and the second rotating sleeve; The shield also has a first connecting portion and a second connecting portion that extend radially along the shield wall and are spaced apart along the axial direction of the shield wall. The first connecting portion and the second connecting portion are both sleeved on the rotating column. The first connecting portion is connected between the first cover plate and the mounting base plate, and the second connecting portion is connected between the second cover plate and the mounting base plate.

47. The folding blower device as described in claim 46, wherein, Both the end of the first connecting part and the end of the second connecting part are provided with mating holes. The mating holes are sleeved on the outside of the rotating column. The inner circumference of the mating holes is provided with multiple protrusions. The multiple protrusions are arranged at intervals along the circumference of the mating holes to abut against the outside of the rotating column.

48. The folding blower device as described in claim 44, wherein, The first cover plate has a protruding connecting post, and the second cover plate has a connecting hole that connects and mates with the connecting post; The mounting base plate is provided with a through hole, and the connecting post can pass through the through hole and connect to the connecting hole. The through hole is arranged in an arc shape with the rotating post as the center.

49. The folding blower device as described in claim 41, wherein, The folding blower also includes a first limiting part and a second limiting part that are spaced apart along the circumference of the rotating column; When switching from the bent state to the extended state, the first cylinder rotates relative to the blocking member in a first direction, and the second cylinder rotates relative to the blocking member in a second direction; when in the extended state, the first limiting part abuts against the first circumferential end of the blocking member to restrict the first cylinder from continuously rotating in the first direction, and the second limiting part abuts against the second circumferential end of the blocking member to restrict the second cylinder from continuously rotating in the second direction.

50. The folding blower device as described in claim 41, wherein, The folding blower also includes a third limiting part and a fourth limiting part that are spaced apart along the circumference of the rotating column; When switching from the extended state to the bent state, the first cylinder rotates relative to the blocking member in a second direction, and the second cylinder rotates relative to the blocking member in a first direction; when in the bent state, the third limiting part abuts against at least a portion of the blocking member to restrict the first cylinder from continuously rotating in the second direction, and the fourth limiting part abuts against at least a portion of the blocking member to restrict the second cylinder from continuously rotating in the first direction.

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