Foldable hair dryers

Abstract

Disclosed in the present application are foldable hair dryers. A foldable hair dryer comprises a first cylindrical body, a second cylindrical body and a pivoting structure; the pivoting structure pivotally connects the first cylindrical body and the second cylindrical body, so that the first cylindrical body and the second cylindrical body can pivot relative to each other, thus achieving an extended state and a folded state; when in the extended state, the first cylindrical body and the second cylindrical body are arranged in a straight line, and the pivot center of the pivoting structure is offset on a same side of the central axis of the first cylindrical body and the central axis of the second cylindrical body.

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. However, this type of hairdryer can only operate in one of these states, and turning the handle requires more effort, limiting its functionality. Technical issues

[0003] Therefore, this application aims to address the issue that traditional hair dryers have a relatively limited working mode and cannot meet the diverse needs of users. 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 to have an extended state and a bent state;

[0007] When in the extended state, the first cylinder and the second cylinder are arranged in a straight line, and the rotation center of the pivot structure is offset on the same side of the central axis of the first cylinder and the central axis of the second cylinder.

[0008] To achieve the above objectives, this application also proposes a folding blower device, comprising:

[0009] A duct assembly and a handle assembly, wherein the length of the duct assembly along its axial direction is less than the length of the handle assembly along its axial direction;

[0010] 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.

[0011] The fan assembly is located inside the air duct assembly.

[0012] To achieve the above objectives, this application also proposes a folding blower device, comprising:

[0013] A first cylinder and a second cylinder, the first cylinder having a first end face at one end in its axial direction, and the second cylinder having a second end face at one end in its axial direction.

[0014] 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 to have an extended state and a bent state;

[0015] Both the first end face and the second end face are located near one end of the pivot structure. When switching from the bent state to the extended state, the first end face and the second end face are moved toward each other.

[0016] Furthermore, when in the extended state, the first cylinder and the second cylinder are coaxially arranged, the first end face and the second end face are relatively spaced apart to form an anti-pinch gap, and the rotation center of the pivot structure is offset on the same side of the central axis of the first cylinder and the central axis of the second cylinder.

[0017] To achieve the above objectives, this application also proposes a folding blower device, comprising:

[0018] Handle structure and air duct structure;

[0019] A pivoting structure rotatably connects the handle structure and the air duct structure, such that the handle structure and the air duct structure can be in a first working state where they are coaxially arranged, and in a second working state where their central axes can be at any angle.

[0020] The display device is disposed on the pivot structure and located at one end of the pivot axis of the pivot structure.

[0021] To achieve the above objectives, this application also proposes a folding hair dryer, including a handheld component and an air outlet component, and a pivot portion rotatably connecting the handheld component and the air outlet component. The pivot portion includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is rotatably sleeved on the outside of the second rotating sleeve. The first rotating sleeve is connected to one end of the handheld component, and the second rotating sleeve is connected to one end of the air outlet component. The first rotating sleeve rotates relative to the second rotating sleeve, such that the handheld component and the air outlet component can be in a first working state where they are coaxially arranged, and in a second working state where they are angled together. Beneficial effects

[0022] The folding hair dryer provided in this application includes a first cylinder, a second cylinder, and a pivot structure. The pivot 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 the folding hair dryer to operate in both extended and bent states. In the extended state, the first and second cylinders are arranged in a straight line, and the folding hair dryer has an overall 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 pivot structure's rotation center is offset to the same side as the central axis of both the first and second cylinders. In the extended state, the pivot structure does not occupy axial space along the axes of the first and second cylinders, ensuring a smaller axial dimension of the folding hair dryer in the extended state and making it easier for the user to operate. Furthermore, both the first and second cylinders can operate at any bending angle and at different angles, making the folding hair dryer more versatile in its operation. When the first and second cylinders are extended, the folding hair dryer is easier to store and facilitates combing and curling. When folded, the first and second cylinders can operate in an "L" or "V" shape to meet the needs of special usage environments. The greater adjustability of the first and second cylinders allows for greater satisfaction of different users' needs, making it more convenient and providing a better user experience. Attached Figure Description

[0023] 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.

[0024] Figure 1 is a structural schematic diagram of the first embodiment of a folding blower (in an extended state) provided in this application;

[0025] Figure 2 is a structural schematic diagram from another perspective of the folding blower device described in Figure 1 (in the extended state);

[0026] Figure 3 is a structural schematic diagram of an embodiment of the folding blower device described in Figure 1 (in a bent state);

[0027] Figure 4 is a structural schematic diagram from another perspective of the folding blower device described in Figure 3 (in a bent state);

[0028] Figure 5 is a cross-sectional structural diagram of the folding blower device described in Figure 4 (in a bent state);

[0029] Figure 6 is another cross-sectional view of the folding blower device described in Figure 4 (in a bent state);

[0030] Figure 7 is another cross-sectional structural diagram of the folding blower device described in Figure 4 (in a bent state);

[0031] Figure 8 is an exploded structural diagram of the folding blower device described in Figure 3 (in a bent state);

[0032] Figure 9 is a structural schematic diagram of the folding blower device described in Figure 3 (in the extended state);

[0033] Figure 10 is a structural schematic diagram from another perspective of the folding blower device described in Figure 9 (in the extended state);

[0034] Figure 11 is a structural schematic diagram from another perspective of the folding blower device described in Figure 9 (in the extended state);

[0035] Figure 12 is a cross-sectional structural diagram of the folding blower device described in Figure 11 (in the extended state);

[0036] Figure 13 is an exploded structural diagram of the folding blower device described in Figure 9 (in the extended state);

[0037] Figure 14 is a cross-sectional structural diagram of another embodiment of the folding blower device described in Figure 1 (in the extended state);

[0038] Figure 15 is another cross-sectional view of the folding blower device described in Figure 14 (in the extended state);

[0039] Figure 16 is a cross-sectional view of the pivot structure of the folding blower device described in Figure 14 (in the extended state).

[0040] Figure 17 is a cross-sectional structural diagram of the folding blower device described in Figure 14 (in a bent state);

[0041] Figure 18 is an exploded structural diagram of the folding blower device described in Figure 14 (in a bent state);

[0042] Figure 19 is a partial cross-sectional view of the folding blower device described in Figure 1 (in a bent state);

[0043] Figure 20 is another partial cross-sectional view of the folding blower device described in Figure 1 (in a bent state);

[0044] Figure 21 is another cross-sectional view of the folding blower device described in Figure 1 (in a bent state);

[0045] Figure 22 is a structural schematic diagram of a second embodiment of a folding blower (in an extended state) provided in this application;

[0046] Figure 23 is a structural schematic diagram of the folding blower device described in Figure 22 (in a bent state);

[0047] Figure 24 is a cross-sectional structural diagram of the folding blower device described in Figure 22 (in the extended state);

[0048] Figure 25 is another cross-sectional view of the folding blower device described in Figure 22 (in the extended state);

[0049] Figure 26 is a cross-sectional structural diagram of the folding blower device described in Figure 23 (in a bent state);

[0050] Figure 27 is an exploded structural diagram of the folding blower device described in Figure 22 (in a bent state);

[0051] Figure 28 is another cross-sectional view of the folding blower device described in Figure 22 (in a bent state);

[0052] Figure 29 is a structural schematic diagram of a third embodiment of a folding blower (in an extended state) provided in this application;

[0053] Figure 30 is a structural schematic diagram of an embodiment of the folding blower device described in Figure 29 (in a bent state);

[0054] Figure 31 is a cross-sectional structural diagram of the folding blower device described in Figure 29 (in the extended state);

[0055] Figure 32 is another cross-sectional view of the folding blower device described in Figure 29 (in the extended state);

[0056] Figure 33 is a cross-sectional view of the pivot structure of the folding blower device described in Figure 29 (in the extended state);

[0057] Figure 34 is a cross-sectional structural diagram of the folding blower device described in Figure 29 (in a bent state);

[0058] Figure 35 is an exploded structural diagram of the folding blower device described in Figure 29 (in a bent state);

[0059] Figure 36 is a partial cross-sectional view of the folding blower device described in Figure 29 (in a bent state);

[0060] Figure 37 is another partial cross-sectional structural diagram of the folding blower device described in Figure 29 (in a bent state);

[0061] Figure 38 is another cross-sectional view of the folding blower device described in Figure 29 (in a bent state);

[0062] Figure 39 is a structural schematic diagram of the fourth embodiment of the folding blower provided in this application (in the second working state);

[0063] Figure 40 is a structural schematic diagram of the folding blower device described in Figure 39 (in the first working state);

[0064] Figure 41 is an exploded structural diagram of the folding blower device described in Figure 39;

[0065] Figure 42 is an exploded structural diagram of the display device described in Figure 39;

[0066] Figure 43 is a structural schematic diagram of the fifth embodiment of the folding blower provided in this application (in the second working state);

[0067] Figure 44 is a structural schematic diagram of the folding blower device described in Figure 43 (in the first working state);

[0068] Figure 45 is a cross-sectional structural schematic diagram of the folding blower device described in Figure 43;

[0069] Figure 46 is an exploded structural diagram of the folding blower device described in Figure 43;

[0070] Figure 47 is a structural schematic diagram of the air outlet component and the second rotating sleeve described in Figure 43;

[0071] Figure 48 is a structural schematic diagram of the air outlet component and the second rotating sleeve described in Figure 47 from another perspective.

[0072] 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

[0073] 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.

[0074] 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.

[0075] 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.

[0076] Example 1

[0077] This application provides a folding hair dryer 100a. Specifically, as shown in Figures 1, 2, 3, and 9, in this embodiment, the folding hair dryer 100a includes a first cylindrical body 1a, a second cylindrical body 2a, and a pivoting structure 3a. The pivoting structure 3a pivotally connects the first cylindrical body 1a and the second cylindrical body 2a, allowing the first cylindrical body 1a and the second cylindrical body 2a to rotate relative to each other, thus having an extended state and a bent state. In the extended state, the first cylindrical body 1a and the second cylindrical body 2a are arranged in a straight line, and the rotation center of the pivoting structure 3a is offset on the same side of the central axis of the first cylindrical body 1a and the central axis of the second cylindrical body 2a.

[0078] 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 the folding hair dryer 100a to operate in both extended and bent states. In the extended state, the first cylinder 1a and the second cylinder 2a are arranged in a straight line, and the folding hair dryer 100a has an overall rod-like structure. At this time, hair accessories (such as straighteners or curling irons) can be easily connected and installed at the air outlet of the folding hair dryer 100a, allowing the airflow to better flow in the direction of hair growth, facilitating combing or curling operations. Furthermore, the rotation center of the pivot structure 3a is offset on the same side as the central axis of the first cylinder 1a and the central axis of the second cylinder 2a. When in the extended state, the pivot structure 3a does not occupy axial space along the axial direction of the first cylinder 1a and the second cylinder 2a, which better ensures that the axial dimension of the folding blower 100a is smaller in the extended state, making it easier for users to operate. Moreover, the first cylinder 1a and the second cylinder 2a can operate at any bending angle, and the first cylinder 1a and the second cylinder 2a can operate at different included angle positions, making the working state of the folding blower 100a more versatile. 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, and the angle 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 work in an "L" or "V" shape to meet the needs of special use environments. The adjustable range of the first cylinder 1a and the second cylinder 2a is larger, so it can better meet the various use needs of different users, making it more convenient to use and providing a better user experience.

[0079] The folding hair dryer 100a can be configured as a hair dryer or a curling iron. 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 is 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, air can be blown out from the air outlet 11a for user use.

[0080] 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.

[0081] Optionally, 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.

[0082] 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. Optionally, as shown in Figures 3 and 4, the first cylinder 1a and the second cylinder 2a can reciprocate between 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, wherein the angle θ is optionally 60°~180°. The angle between the first cylinder 1a and the second cylinder 2a can be adjusted by driving the first cylinder 1a and / or the second cylinder 2a to rotate through a drive mechanism, making the switching of various working states of the folding blower 100a more intelligent; or, the angle between the first cylinder 1a and the second cylinder 2a can be adjusted manually, which is simpler in structure and lower in cost.

[0083] 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.

[0084] Optionally, 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 support between the first cylinder 1a and the second cylinder 2a remains aligned during rotation. Therefore, when holding the second cylinder 2a and rotating the first cylinder 1a, 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.

[0085] 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.

[0086] In one embodiment, 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.

[0087] In another embodiment, the axial length of the first cylinder 1a is less than the axial length of the second cylinder 2a. Since the first cylinder 1a 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.

[0088] 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. Optionally, 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 bent state and the extended state, the external structure of the folding blower 100a is more symmetrical, more aesthetically pleasing, and more comfortable to hold.

[0089] Furthermore, in the extended state, one end of the first cylinder 1a and the second cylinder 2a are opposite to each other, allowing 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.

[0090] Optionally, referring to Figures 9 to 11, in the extended state, the first cylinder 1a and the second cylinder 2a are coaxially arranged, and optionally, the included angle θ = 180°. Specifically, the first cylinder 1a has a first connecting end and a first free end opposite to each other along its axial direction, and the second cylinder 2a has a second connecting end and a second free end opposite to each other along its axial direction. In the extended state, the first connecting end of the first cylinder 1a and the second connecting end of the second cylinder 2a are connected to each other, the first free end of the first cylinder 1a is oriented in a direction away from the second cylinder 2a, and the second free end of the second cylinder 2a is oriented in a direction away from the first cylinder 1a. 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 can be understood that 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.

[0091] Of course, as shown in Figures 3 to 5, when the first cylinder 1a and the second cylinder 2a are in a bent state, 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.

[0092] If the first cylinder 1a and the second cylinder 2a are set to rotate on a horizontal plane, then optionally, 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.

[0093] Specifically, when rotating from the extended state to the bent state, the first side of the first cylinder and the first side of the second cylinder move towards each other. Specifically, referring to 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 S1 containing the pivot axis, or both are located on the first side of the plane S1 containing the pivot axis. 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. The first cylinder 1a and the second cylinder 2a can better achieve a rotation approaching 180° while rotating in the same plane.

[0094] Alternatively, the pivot axis of the pivot structure 3a is located exactly on the straight line of the first side of the first cylinder 1a and / or the second cylinder 2a. In the radial direction of the first cylinder 1a and / or the second cylinder 2a, the portion of the pivot structure 3a protruding from the first cylinder 1a and / or the second cylinder 2a is less, thus the structure is more compact in the radial direction and therefore smaller in volume.

[0095] The pivot structure 3a is mainly used to rotatably connect the first cylinder 1a and the second cylinder 2a. Optionally, 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 bent state, the volume of the two cylinders along the axial direction of the pivot structure 3a is smaller, making the entire folding blower 100a more compact. 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.

[0096] In one embodiment, 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 cylindrical body 1a; the second rotating portion 32a is rotatably sleeved on the outside of the shaft portion 33a and connected to the second cylindrical body 2a. The first rotating portion 31a and the second rotating portion 32a can rotate relative to each other, and the central axis of the first cylindrical body 1a and the central axis of the second cylindrical body 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] Optionally, 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 parts are required for assembly, thus making assembly simpler.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] In another embodiment of the folding blower device 100a, as shown in Figures 14, 15, and 18, the pivot structure 3a includes a first rotating part 31a', a second rotating part 32a', and a blocking part 34a. The first rotating part 31a' is located at the first connecting end of the first cylindrical body 1a. The second rotating part 32a' is located at the second connecting end of the second cylindrical body 2a and is rotatably connected to the first rotating part 31a'. The blocking part 34a is rotatably connected to the rotatable connection between the first rotating part 31a' and the second rotating part 32a'. In the extended state, the first connecting end and the second connecting end at least partially abut against each other, such that the blocking part 34a is completely located within the first cylindrical body 1a and the second cylindrical body 2a. When switching from the extended state to the bent state, the first side of the first cylinder 1a and the first side of the second cylinder 2a move closer to each other, while the second side of the first cylinder 1a and the second side of the second cylinder 2a move further apart. This results in the first connecting end and the second connecting end being at least partially spaced apart. The blocking part 34a 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 34a is exposed from the first cylinder 1a and the second cylinder 2a, ensuring the airtightness of the folding blower 100a. Ventilation holes may be provided on the blocking part 34a. When in the bent state, some airflow can enter through the ventilation holes, thereby increasing the air intake and the air output of the folding blower 100a.

[0107] Further, referring to Figures 16 and 18, the first rotating part 31a' includes a first rotating sleeve 311a' disposed at the first connecting end. The first rotating sleeve 311a' protrudes from the axial end of the first cylindrical body 1a and is eccentrically disposed in the radial direction along the first cylindrical body 1a. The axial direction of the first rotating sleeve 311a' is perpendicular to the rotation plane where the first cylindrical body 1a and the second cylindrical body 2a are located. Optionally, the first rotating sleeve 311a' is integrally disposed with the first cylindrical body 1a. The second cylindrical body 2a includes a first half-shell 22a and a second half-shell 23a connected to each other. The second rotating part 32a' includes a first sleeve 3211a' and a second sleeve 3212a' connected to each other. The first sleeve 3211a' is connected to the first half-shell 22a, and the second sleeve 3212a' is connected to the second half-shell 23a. The first sleeve 3211a' and the second sleeve 3212a' are respectively rotatably connected to the two ends of the first rotating sleeve 311a' along its axial direction to facilitate assembly. Optionally, the first sleeve 3211a' and the first half-shell 22a are integrally formed, and the second sleeve 3212a' and the second half-shell 23a are integrally formed, resulting in fewer assembly parts and easier assembly.

[0108] Specifically, as shown in Figure 18, the first rotating sleeve 311a' is arranged in a ring shape, and at least a portion of the first rotating sleeve 311a' protrudes from the first cylinder 1a in the radial direction, such that the central axis of the first rotating sleeve 311a' is located on the first side of the first cylinder 1a. Moreover, a partition is provided on the inner ring side of the first rotating sleeve 311a', and a rotating column 3111a is provided on the partition. The rotating column 3111a is located at the center of the first rotating sleeve 311a', and the first cylinder 1a and the second cylinder 2a are respectively located at the two ends of the axial direction of the rotating column 3111a, so as to be rotatably connected to the two ends of the axial direction of the rotating column 3111a.

[0109] Specifically, between one axial end of the rotating column 3111a and the first sleeve 3211a', 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 3111a and the second sleeve 3212a', 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.

[0110] The first sleeve 3211a' is a cylindrical shape with openings at both ends. Optionally, as shown in Figures 16 and 18, the folding blower 100a also includes a panel bracket 7a connected to the first sleeve 3211a'. The panel bracket 7a is located on the side of the first sleeve 3211a' facing away from the second sleeve 3212a' to cover the end of the first sleeve 3211a'. The panel bracket 7a and the second sleeve 3212a' are connected by a connector (such as a screw or bolt). A corresponding arc-shaped hole is provided on the partition of the first rotating sleeve 311a'. The connector between the panel bracket 7a and the second sleeve 3212a' passes through the arc-shaped hole so that when the first cylinder 1a and the second cylinder 2a rotate relative to the rotating column 3111a, the connector can move along the arc-shaped hole. A first rotating convex shaft protrudes from the panel bracket 7a, and a first rotating hole is located at one end of the rotating column 3111a, so that the panel bracket 7a and the first sleeve 3211a' are rotatably connected to the rotating column 3111a. The outer periphery of the panel bracket 7a is provided with multiple upper hooks, and the inner ring side of the first sleeve 3211a' is provided with multiple buckles. The multiple hooks and multiple buckles are engaged one-to-one to fix the panel bracket 7a to the first sleeve 3211a'.

[0111] The second cylinder 2a is a cylindrical shape with one end open and the other end closed. The second rotating hole is located at the end of the second sleeve 3212a', and the second rotating convex shaft is located at the other end of the rotating column 3111a, so that the second sleeve 3212a' is rotatably connected to the first rotating sleeve 311a'.

[0112] The shielding portion 34a is arc-shaped and has a first connecting portion 341a and a second connecting portion 342a that are spaced apart from each other along the axial direction of its circumferential surface. The first connecting portion 341a and the second connecting portion 342a extend radially from the shielding portion 34a towards the center. The first connecting portion 341a connects one end of the rotating column 3111a along the axial direction and the first sleeve 3211a', while the second connecting portion 342a connects the other end of the rotating column 3111a along the axial direction and the second sleeve 3212a'. The arc surface of the shielding portion 34a is concentric with the arc surface of the first rotating sleeve 311a', so that the shielding portion 34a can better form a shield when bent and can be better accommodated in the first cylinder 1a and the second cylinder 2a when extended.

[0113] Furthermore, as shown in Figures 14 and 15, the pivot structure 3a also includes a first limiting portion 35a and a second limiting portion 36a spaced apart along the circumference of the rotating column 3111a. When switching from a bent state to an extended state, the first cylinder 1a rotates relative to the blocking portion 34a in a first direction, and the second cylinder 2a rotates relative to the blocking portion 34a 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 portion 35a abuts against the first circumferential end of the blocking portion 34a to restrict the first cylinder 1a from continuously rotating in the first direction, and the second limiting portion 36a abuts against the second circumferential end of the blocking portion 34a to restrict the second cylinder 2a from continuously rotating in the second direction. This allows the first cylinder 1a and the second cylinder 2a to be better maintained in the extended state and prevents them from swaying uncontrollably.

[0114] As shown in Figures 19 and 20, the pivoting structure 3a further includes a third limiting portion 37a and a fourth limiting portion 38a spaced apart circumferentially along the rotating column 3111a. When switching from the extended state to the bent state, the first cylinder 1a rotates relative to the blocking portion 34a in a second direction, and the second cylinder 2a rotates relative to the blocking portion 34a in a first direction. In the bent state, the third limiting portion 37a abuts against at least a portion of the blocking portion 34a to restrict the first cylinder 1a from continuously rotating in the second direction, and the fourth limiting portion 38a abuts against at least a portion of the blocking portion 34a to restrict the second cylinder 2a from continuously rotating in the first direction. This allows the first cylinder 1a and the second cylinder 2a to be better maintained in the bent state, preventing them from swaying uncontrollably, thus enabling them to operate more effectively in the bent state.

[0115] Furthermore, as shown in Figures 17 and 18, the folding blower 100a also includes a fan assembly 5a and an air guide duct 6a. The fan assembly 5a includes a fan bracket 51a and a fan body 52a disposed within the fan bracket 51a. The air guide duct 6a is disposed inside the first cylinder 1a and connected at one end to the fan bracket 51a. The air guide duct 6a has a first end connected to the fan bracket 51a and a second end disposed near the air outlet end of the first air duct. The central axis of the first end of the air guide duct 6a and the central axis of the second end of the air guide duct 6a are set at an angle to better connect with the fan assembly 5a located within the pivot structure 3a. The airflow blown out from the fan assembly 5a can be better directed towards the air outlet end of the folding blower 100a along the air guide duct 6a. The portion of the guide duct located within the cylinder is arranged in a straight line, thus the airflow outlet path is shorter, the airflow loss is lower, and the airflow volume can be better guaranteed.

[0116] Furthermore, as shown in Figures 17 and 21, the fan assembly 5a also includes a venting sleeve 8a, which is fitted onto the air inlet end of the fan bracket 51a. The venting sleeve 8a has a sleeve body fitted onto the outside of the fan bracket 51a, multiple venting holes located on the inside of the sleeve body, and a limiting protrusion 381a protruding from the outside of the sleeve body. The limiting protrusion 381a extends radially outward from the outer peripheral sidewall of the sleeve body. A limiting rib 343a protrudes from the inside of the shielding portion 34a, forming a fourth limiting portion 38a. When in a bent state, the limiting protrusion 381a and the limiting rib 343a engage to prevent the second cylinder 2a from continuing to rotate in the bending direction, thereby keeping the second cylinder 2a in a bent state for operation.

[0117] The air outlet end of the fan bracket 51a is fixed inside the first cylinder 1a and is fitted against one side wall of the first cylinder 1a. The air inlet end of the fan bracket 51a is fixed to the first rotating sleeve 311a'. The bend transition between the air inlet end and the air outlet end of the fan bracket 51a forms a first limiting part 35a. When in the extended state, one end of the blocking part 34a abuts against the outside of the fan bracket 51a, and the other end of the blocking part 34a abuts against the connection transition between the second cylinder 2a and the first rotating sleeve 311a', thereby keeping the folding blower 100a in the extended state for operation. The third limiting part 37a includes a first boss 371a protruding from the end of the second sleeve 3212a' and a second boss 372a protruding from the panel support 7a. When in a bent state, one side of the first connecting part 341a and one side of the second connecting part 342a of the blocking part 34a abut against the first boss 371a and the second boss 372a respectively, so as to restrict the first cylinder 1a from continuing to rotate in the bending direction, thereby keeping the first cylinder 1a in a bent working state.

[0118] Furthermore, a sandwich structure is formed between the panel support 7a and the first rotating sleeve 311a'. The fan assembly 5a also includes a conductor wire, and a guide post is provided within the sandwich structure. The conductor wire can be wound from the fan body 52a into the sandwich structure and enter the second cylinder 2a through the guide post. The guide post protrudes from the first rotating sleeve 311a' and abuts against the panel support 7a. The guide post is located on the outer periphery of the fan support 51a, and the spacing between the guide post and the fan support 51a forms a groove for the conductor wire to pass through.

[0119] Example 2

[0120] Referring to Figures 22 to 28, 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.

[0121] Specifically, referring to Figures 22 to 24, in this embodiment, the folding blower device 100b includes a blower assembly 1b, a handle assembly 2b, a pivot structure 3b, and a fan assembly 5b. The axial length of the blower assembly 1b is less than the axial length of the handle assembly 2b. The pivot structure 3b pivotally connects the blower assembly 1b and the handle assembly 2b, allowing them to rotate relative to each other to have extended and bent states. In the extended state, the blower assembly 1b and the handle assembly 2b are arranged in a straight line, and the rotation center of the pivot structure 3b is offset on the same side of the central axis of the blower assembly 1b and the central axis of the handle assembly 2b. The fan assembly 5b is disposed within the blower assembly 1b.

[0122] In this embodiment, the hair dryer assembly 1b and the handle assembly 2b are connected by a pivot structure 3b, allowing them to rotate relative to each other. This adjusts the angle between the hair dryer assembly 1b and the handle assembly 2b, enabling the folding hair dryer 100b to operate in both extended and bent states. In the extended state, the hair dryer assembly 1b and the handle assembly 2b are arranged in a straight line, and the folding hair dryer 100b has a rod-like structure. At this time, hair accessories (such as straighteners or curling irons) can be easily connected and installed at the air outlet of the folding hair dryer 100b, allowing the airflow to flow better along the hair's direction, facilitating combing or curling operations. Furthermore, the rotation center of the pivot structure 3b is offset on the same side of the central axis of the air duct assembly 1b and the central axis of the handle assembly 2b. When in the extended state, the pivot structure 3b will not occupy axial space along the axial direction of the air duct assembly 1b and the handle assembly 2b, which can better ensure that the axial dimension of the folding blower 100b is smaller when in the extended state, making it easier for users to operate and use.

[0123] The air duct assembly 1b and the handle assembly 2b can operate at any bending angle and at different angles, making the working state of the folding hair dryer 100b more versatile. When bent, the central axis of the air duct assembly 1b and the central axis of the handle assembly 2b 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 1b and the handle assembly 2b can operate in an "L" or "V" shape to meet the needs of special usage environments. The wider adjustability of the air duct assembly 1b and the handle assembly 2b better meets the diverse needs of different users, making it more convenient and providing a better user experience. Furthermore, by making the length of the air duct assembly 1b shorter than the length of the handle assembly 2b, the distance between the fan assembly 5b and the air outlet 11b of the air duct assembly 1b is closer. Compared to the traditional method of placing the fan assembly inside the handle assembly, the airflow blown out from the fan assembly 5b can obviously enter the air duct assembly 1b quickly, resulting in a shorter air outlet path and thus higher air outlet efficiency.

[0124] Furthermore, when the air duct assembly 1b is shorter, the fan assembly 5b can be at least partially housed within the pivot structure 3b, thereby further compressing the structure and making the entire folding blower 100b smaller in size.

[0125] The air duct assembly 1b is provided with an air outlet 11b, which can be located at the end or periphery of the air duct assembly 1b. Optionally, the air outlet 11b is formed at the axial end of the air duct assembly 1b. An air inlet 21b can be provided on the air duct assembly 1b, and / or the handle assembly 2b, and / or the pivot structure 3b. Optionally, the air inlet 21b is provided on the handle assembly 2b. After the airflow enters the handle assembly 2b through the air inlet 21b, it flows along the handle assembly 2b to the pivot structure 3b, enters the air duct assembly 1b through the pivot structure 3b, and is blown out from the air outlet 11b along the air duct assembly 1b for user use.

[0126] By adjusting the relative angle between the air duct assembly 1b and the handle assembly 2b, the folding hair dryer 100b can switch between an extended state and a bent state to meet different user needs. Optionally, as shown in Figures 22 and 23, the central axis of the air duct assembly 1b and the central axis of the handle assembly 2b have an included angle θ, wherein the included angle θ is optionally 60°~180°. The adjustment of the included angle between the air duct assembly 1b and the handle assembly 2b can be achieved by driving the air duct assembly 1b and / or the handle assembly 2b to rotate through a drive mechanism, making the switching of various working states of the folding hair dryer 100b more intelligent; or, the adjustment of the included angle between the air duct assembly 1b and the handle assembly 2b can be achieved manually, which is simpler in structure and lower in cost.

[0127] In one embodiment, the rotation plane of the duct assembly 1b (i.e., the plane through which the central axis of the duct assembly 1b rotates) and the rotation plane of the handle assembly 2b (i.e., the plane through which the central axis of the handle assembly 2b rotates) can be set to be non-coplanar. For example, the rotation plane of the duct assembly 1b and the rotation plane of the handle assembly 2b can be arranged parallel and / or intersecting, so that the duct assembly 1b and the handle assembly 2b are misaligned in the rotation direction, thereby better realizing large-angle rotation. And / or, one of the duct assembly 1b and the handle assembly 2b can rotate, and the angle between the two can be changed by the relative rotation of the duct assembly 1b and the handle assembly 2b.

[0128] Optionally, during the relative rotation of the air blower assembly 1b and the handle assembly 2b, the central axis of the air blower assembly 1b and the central axis of the handle assembly 2b are always located on the same plane. The support between the air blower assembly 1b and the handle assembly 2b remains aligned during rotation. Therefore, when the air blower assembly 1b is rotated while holding the handle assembly 2b, the air 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 axis of the pivot structure 3b, resulting in a more compact size for the folding hair dryer 100b.

[0129] 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. Optionally, both the blower assembly 1b and the handle assembly 2b are cylindrical with the same diameter, so that the external structure of the folding hair dryer 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.

[0130] The air duct assembly 1b and the handle assembly 2b are set to rotate on a horizontal plane. Optionally, 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.

[0131] 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 move towards each other. Specifically, 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.

[0132] 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.

[0133] For the blower assembly 5b, it is mainly used to guide the airflow from the outside of the folding blower 100b into the handle assembly 2b, and blow it into the air duct assembly 1b through the air outlet of the blower assembly 5b, so that the airflow can be blown out from the air outlet of the air duct assembly 1b, thereby forming a directional airflow that can act on the hair.

[0134] When the handle assembly 2b has an air inlet 11, the air inlet end of the blower assembly 5b is connected to the handle assembly 2b, and the air outlet end of the blower assembly 5b is connected to the air duct assembly 1b. When switching between the extended and bent states, the rotation of the air duct assembly 1b can drive the blower assembly 5b to rotate together, while maintaining the connection between the air inlet end of the blower assembly 5b and the handle assembly 2b. This ensures that regardless of the working posture of the folding blower device 100b, the blower assembly 5b can better maintain its relative position with the air duct assembly 1b, ensuring that the airflow blown by the blower assembly 5b can better flow into the air duct assembly 1b, resulting in less wind resistance and higher air output efficiency.

[0135] Furthermore, in the extended state, the air duct assembly 1b and the handle assembly 2b are coaxially arranged. The central axis of the blower assembly 5b is in the same plane as and intersects with the central axes of the air duct assembly 1b and the handle assembly 2b. Since the folding blower 100b needs to maintain docking and communication with both the air duct assembly 1b and the handle assembly 2b simultaneously when switching between the extended and bent states, the central axis of the blower assembly 5b cannot be completely parallel to the central axis of the air duct assembly 1b when at least a portion of the blower assembly 5b is housed within the pivot structure 3b. Therefore, the blower assembly 5b is tilted relative to the air duct assembly 1b to better accommodate the switching requirements between the extended and bent states of the folding blower 100b.

[0136] As shown in Figures 26 and 27, the fan assembly 5b is provided with a first engaging portion 511b and a first rotating portion 512b. The first engaging portion 511b is located at the air outlet end of the fan assembly 5b and is used to engage with the first mating portion 611b inside the air duct assembly 1b. The first rotating portion 512b is located on the outer periphery of the fan assembly 5b and is adapted to be rotatably connected to the pivot shaft of the pivot structure 3b. This allows one end of the fan assembly 5b to be fixed inside the air duct assembly 1b, while the other end is rotatably installed inside the pivot structure 3b. When the folding blower device 100b switches between working states, the fan assembly 5b can rotate around the rotation center of the pivot structure 3b.

[0137] Optionally, referring to Figures 25 to 27, the fan assembly 5b includes a fan bracket 51b and a fan body 52b. The fan bracket 51b is cylindrical with openings at both ends. The first locking portion 511b includes a locking hole 5111b at the end of the fan bracket 51b facing the fan duct assembly. The first rotating portion 512b includes a rotating hole 5121b on the outer periphery of the fan bracket 51b. The fan body 52b is disposed inside the fan bracket 51b. The rotation of the fan duct assembly 1b causes the fan bracket 51b to rotate relative to the pivot structure 3b, so that the fan body 52b can rotate together. The fan bracket 51b can more stably fix the fan body 52b inside the fan duct assembly 1b, so as to better ensure the airflow direction.

[0138] Furthermore, referring to Figures 24 to 26, the folding blower 100b also includes a heating component 6b disposed within the air duct assembly 1b. The heating component 6b includes an air guide duct 61b and a heating element 62b. One end of the air guide duct 61b is connected and conductive to the fan bracket 51b, and the other end extends towards the air outlet end of the air duct assembly 1b. The first mating part 611b includes a hook 6111b disposed at one end of the air guide duct 61b, which is correspondingly engaged with a locking hole 5111b. The heating element 62b is disposed within the air guide duct 61b and located at the end near the fan assembly 5b. The fan bracket 51b is fixed to the air guide duct 61b by engaging the hook 6111b with the locking hole 5111b. This allows the airflow blown out of the fan assembly 5b to flow better towards the heating element 62b after entering the air guide duct 61b, and after being heated by the heating element 62b, the airflow is blown out from the guide duct toward the air outlet of the fan assembly 1b.

[0139] Furthermore, a guide groove is formed at the end of the fan bracket 51b facing the guide tube 61b, with the groove opening facing the guide tube. A locking hole 5111b is provided on the outer wall of the guide groove, and the end of the guide tube 61b is inserted into the guide groove, such that the hook 6111b engages with the corresponding locking hole 5111b. This insertion and engagement of the guide tube 61b with the guide groove ensures a tight seal at the connection between the guide tube 61b and the fan bracket 51b. The heating assembly 6b also includes a sealing element located at the end of the guide tube 61b that abuts against the guide groove, sealing the space between the guide tube 61b 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 61b and the guide groove. This further ensures the sealing effect at the connection between the air guide tube 61b and the fan bracket 51b, so that after the airflow is blown out from the fan assembly 5b, it all enters the air tube. The airflow does not flow arbitrarily and flows better toward the heating element 62b. All the airflow can flow better through the heating element 62b before flowing out of the air tube assembly 1b. Therefore, the temperature uniformity of the hot airflow is better, which can better ensure the hair blowing effect.

[0140] Furthermore, the air guide duct 61b 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 1b. The main body end is fixed to the inner side of the air duct assembly, and its central axis is parallel to the central axis of the air duct assembly 1b. The connecting end is connected to the fan bracket 51b, 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 61b, the air guide duct 61b can be better connected to the fan assembly 5b, avoiding the need to make the fan body 52b into an irregular shape, thus saving costs.

[0141] Specifically, referring to Figures 26 and 28, the duct assembly 1b has a first connecting end and a first free end opposite each other along its axial direction, and the handle assembly 2b has a second connecting end and a second free end opposite each other along its axial direction. The pivot structure 3b connects the first connecting end and the second connecting end.

[0142] The pivot structure 3b includes a first rotating part 31b, a second rotating part 32b, and a blocking part 34b. The first rotating part 31b is located at the first connecting end of the air duct assembly 1b. The second rotating part 32b is located at the second connecting end of the handle assembly 2b and is rotatably connected to the first rotating part 31b. The first rotating part 512b is coaxially rotatably connected to the first rotating part 31b and the second rotating part 32b. The blocking part 34b is rotatably connected to the rotatable connection between the first rotating part 31b and the second rotating part 32b. In the extended state, the first connecting end and the second connecting end at least partially abut against each other, such that the blocking part 34b is completely located within the air duct assembly 1b and the handle assembly 2b. When switching from the extended state to the bent state, the first side of the air blower assembly 1b and the first side of the handle assembly 2b move closer to each other, while the second side of the air blower assembly 1b and the second side of the handle assembly 2b 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 34b 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 34b is exposed from the air blower assembly 1b and the handle assembly 2b. The blocking part 34b ensures the sealing of the folding blower device 100b.

[0143] Further, referring to Figure 27, the first rotating part 31b includes a first rotating sleeve 311b disposed at the first connecting end. The first rotating sleeve 311b protrudes from the shaft end of the air duct assembly 1b and is eccentrically disposed in the radial direction along the air duct assembly 1b. The axial direction of the first rotating sleeve 311b is perpendicular to the rotation plane where the air duct assembly 1b and the handle assembly 2b are located. Optionally, the first rotating sleeve 311b is integrally disposed with the air duct assembly 1b. The handle assembly 2b includes a first half-shell 22b and a second half-shell 23b connected together. The second rotating part 32b includes a first sleeve body 3211b and a second sleeve body 3212b connected together. The first sleeve body 3211b is connected to the first half-shell 22b, and the second sleeve body 3212b is connected to the second half-shell 23b. The first sleeve body 3211b and the second sleeve body 3212b are respectively rotatably connected to the two ends of the first rotating sleeve 311b along its axial direction for easy assembly. Optionally, the first body 3211b and the first half-shell 22b are integrally formed, and the second body 3212b and the second half-shell 23b are integrally formed, which reduces the number of assembly parts and makes assembly more convenient.

[0144] Specifically, the first rotating sleeve 311b is annularly arranged, and at least a portion of the first rotating sleeve 311b protrudes from the air duct assembly 1b radially, such that the central axis of the first rotating sleeve 311b is located on the first side of the air duct assembly 1b. Furthermore, a partition is provided on the inner annular side of the first rotating sleeve 311b, and a rotating column 3111b is provided on the partition. The rotating column 3111b is located at the center of the first rotating sleeve 311b, and the air duct assembly 1b and the handle assembly 2b are respectively located at the two ends of the axial direction of the rotating column 3111b, respectively, and are rotatably connected to the two ends of the axial direction of the rotating column 3111b. The rotating hole 5121b of the fan assembly 5b is rotatably sleeved on the outside of the rotating column 3111b, allowing the fan assembly 5b to rotate relative to the rotating column 3111b.

[0145] Specifically, between one axial end of the rotating column 3111b and the first sleeve 3211b, 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 3111b and the second sleeve 3212b, 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.

[0146] Example 3

[0147] Referring to Figures 29 to 38, 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.

[0148] Specifically, referring to Figures 29, 31, and 32, in this embodiment, the folding blower device 100c includes a first cylindrical body 1c, a second cylindrical body 2c, and a pivoting structure 3c. The first cylindrical body 1c has a first end face 12c located at one end in its axial direction, and the second cylindrical body 2c has a second end face 24c located at one end in its axial direction. The pivoting structure 3c pivotally connects the first cylindrical body 1c and the second cylindrical body 2c, allowing the first cylindrical body 1c and the second cylindrical body 2c to rotate relative to each other, thus having an extended state and a bent state. The first end face 12c and the second end face 24c are both located near the end of the pivoting structure 3c. When switching from the bent state to the extended state, the first end face 12c and the second end face 24c move towards each other. Furthermore, when in the extended state, the first cylinder 1c and the second cylinder 2c are arranged coaxially, the first end face 12c and the second end face 24c are arranged at relative intervals to form an anti-pinch gap, and the rotation center of the pivot structure 3c is offset on the same side of the central axis of the first cylinder 1c and the central axis of the second cylinder 2c.

[0149] In this embodiment, a pivot structure 3c connects the first cylinder 1c and the second cylinder 2c, allowing relative rotation between them. This adjusts the angle between the first cylinder 1c and the second cylinder 2c, enabling the folding hair dryer 100c to operate in both extended and bent states. In the extended state, the first cylinder 1c and the second cylinder 2c are coaxially arranged, and the folding hair dryer 100c has an overall rod-like structure. At this time, hair-combing accessories (such as straighteners or curling irons) can be easily connected and installed at the air outlet of the folding hair dryer 100c, allowing the airflow to better flow in the direction of hair growth, facilitating combing or curling operations. Furthermore, the rotation center of the pivot structure 3c is offset on the same side of the central axis of the first cylinder 1c and the central axis of the second cylinder 2c. When in the extended state, the pivot structure 3c will not occupy axial space along the axis of the first cylinder 1c and the second cylinder 2c, which can better ensure that the axial dimension of the folding blower 100c is smaller when in the extended state, making it easier for users to operate and use.

[0150] The first cylinder 1c and the second cylinder 2c can operate at any bending angle, and can also operate at different angles, making the working state of the folding blower 100c more diverse. When in a bent state, the central axis of the first cylinder 1c and the central axis of the second cylinder 2c 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 1c and the second cylinder 2c can operate in an "L" or "V" shape to meet the needs of special operating environments. The adjustable range of the first cylinder 1c and the second cylinder 2c is greater, thus better meeting the various needs of different users, making it more convenient to use and providing a better user experience. Furthermore, when in the extended state, the first end face 12c and the second end face 24c are spaced apart to form an anti-pinch gap. This allows the user to switch the working state of the folding hair dryer 100c at any time during use. When transitioning from the bent to the extended state, a better anti-pinch gap is formed between the first tube 1c and the second tube 2c to protect the user's hair. This prevents the first tube 1c and the second tube 2c from being completely flush together, which could cause some of the user's hair to be trapped between the two tubes, pulling on the hair and affecting the user experience.

[0151] The folding hair dryer 100c can be configured as a hair dryer or a curling iron. One of the first cylindrical body 1c and the second cylindrical body 2c can be configured as a blower, and the other as a handle. The first cylindrical body 1c is configured as a blower, and the second cylindrical body 2c as a handle. An air outlet 11c is provided on the first cylindrical body 1c. It can be understood that an air inlet 21c can be provided on the first cylindrical body 1c, and / or the second cylindrical body 2c, and / or the pivot structure 3c, so that after entering the first cylindrical body 1c, the airflow can be blown out through the air outlet 11c for user use.

[0152] It is understood that the folding blower 100c may also include a heating element and a circuit structure 4c, which is electrically connected to the heating element to control its operation. The heating element and the circuit structure 4c may both be housed within the same cylinder, or they may be housed separately within the first cylinder 1 and the second cylinder 2c.

[0153] Optionally, the heating element is located inside the first cylinder 1c, the circuit structure 4c is located inside the second cylinder 2c, the air inlet 21c is located on the second cylinder 2c, and an air passage is provided on the pivot structure 3c, which connects the air inlet 21c and the air outlet 11c, thus connecting the first cylinder 1c and the second cylinder 2c. Along the airflow direction, the circuit structure 4c is located in the connecting channel between the air inlet 21c and the air passage, allowing cold airflow to enter the second cylinder 2c from the air inlet 21c, flow through the circuit structure 4c, then through the air passage into the first cylinder 1c, and after being heated by the heating structure, flow out of the first cylinder 1c from the air outlet 11c. This arrangement allows cold airflow to flow through the circuit structure 4c for heat dissipation, and also allows hot airflow from the periphery of the circuit structure 4c to be drawn into the first cylinder 1c, improving heating efficiency and saving heating energy.

[0154] By adjusting the relative angle between the first cylinder 1c and the second cylinder 2c, the folding blower 100c can be in different working states to meet different user needs. Optionally, as shown in Figures 29 and 30, the central axis of the first cylinder 1c and the central axis of the second cylinder 2c have an angle θ, wherein the angle θ is optionally 60°~180°. The angle between the first cylinder 1c and the second cylinder 2c can be adjusted by driving the first cylinder 1c and / or the second cylinder 2c to rotate through a drive mechanism, making the switching of various working states of the folding blower 100c more intelligent; or, the angle between the first cylinder 1c and the second cylinder 2c can be adjusted manually, which is simpler in structure and lower in cost.

[0155] Optionally, during the relative rotation of the first cylinder 1c and the second cylinder 2c, the central axis of the first cylinder 1c and the central axis of the second cylinder 2c are always located on the same plane. The support between the first cylinder 1c and the second cylinder 2c remains aligned during rotation. Therefore, when holding the second cylinder 2c and rotating the first cylinder 1c, the first cylinder 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.

[0156] The shape and size of the first cylinder 1c and the second cylinder 2c are not specifically limited, and can be square, polygonal, or irregular in shape. Optionally, both the first cylinder 1c and the second cylinder 2c are cylindrical and have the same diameter, so that when the first cylinder 1c and the second cylinder 2c are in the bent and extended states, the external structure of the folding blower 100c is more symmetrical, more aesthetically pleasing, and more comfortable to hold.

[0157] The air outlet 11c can be located on the peripheral side wall of the first cylinder 1c or at the end of the first cylinder 1c. When the air outlet is also located at the end of the first cylinder 1c, the air outlet 11c of the first cylinder 1c can extend further when the user holds the second cylinder 2c, thereby increasing the operating distance and making the operation easier for the user.

[0158] Optionally, referring to Figures 31 and 32, when in the extended state, the included angle θ between the first cylinder 1c and the second cylinder 2c is 180°. Specifically, the first cylinder 1c has a first connecting end and a first free end facing each other along its axial direction, and the second cylinder 2c has a second connecting end and a second free end facing each other along its axial direction. In the extended state, the first connecting end of the first cylinder 1c and the second connecting end of the second cylinder 2c are connected to each other, the first free end of the first cylinder 1c is oriented in a direction away from the second cylinder 2c, and the second free end of the second cylinder 2c is oriented in a direction away from the first cylinder 1c. At this time, the first cylinder 1c and the second cylinder 2c are fully extended, the wind resistance in the airflow path is smaller, and therefore the air outlet efficiency is higher. It can be understood 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 1c and the second cylinder 2c are roughly arranged in a "I" shape.

[0159] Of course, when the first cylinder 1c and the second cylinder 2c are in a bent state, the angle between the first cylinder 1c and the second cylinder 2c is greater than 0° and less than 180°. For example, the first cylinder 1c and the second cylinder 2c are in a "V" shape or an "L" shape, so that the folding blower 100c can be in a preset angle position for use in special environments.

[0160] The first cylinder 1c and the second cylinder 2c are set to rotate on a horizontal plane. Optionally, the pivot axis of the pivot structure 3c is set vertically. When in the extended state, the pivot axis of the pivot structure 3c is perpendicular to the central axis of the first cylinder 1c and / or the central axis of the second cylinder 2c, making the rotation of the first cylinder 1c and the second cylinder 2c smoother and less prone to twisting or swaying. As shown in Figure 31, the plane passing through the pivot axis and perpendicular to the central axis of the first cylinder 1c and the central axis of the second cylinder 2c is defined as plane S2. The distance from the first end face 12c to plane S2 and the distance from the second end face 24c to plane S2 are equal. This ensures that the movement distance of the first end face 12c and the second end face 24c relative to plane S2 remains consistent, thereby making the relative rotation distance between the first cylinder 1c and the second cylinder 2c more consistent and the two cylinders more stable during rotation.

[0161] As shown in Figures 31 and 34, the pivot structure 3c has a first side located outside the axial projection area of ​​the first cylinder 1c and the second cylinder 2c when in the extended state, and a second side located within the axial projection area of ​​the first cylinder 1c and the second cylinder 2c. At least a portion of the second side of the pivot structure 3c is hollowed out. The folding blower device 100c also includes a shielding part 34c, which is connected to the pivot structure 3c and covers the hollowed-out area of ​​the pivot structure 3c. This allows the shielding part 34c to gradually emerge from the gap between the first end face 12c and the second end face 24c when switching from the extended state to the bent state. In other words, the shielding part 34c can block the anti-pinch gap between the first end face 12c and the second end face 24c, preventing external dust or rainwater and other contaminants from entering the interior of the pivot structure 3c.

[0162] Specifically, as shown in Figure 34, the shielding part 34c is configured as a shielding cover 341c, which is arc-shaped. The shielding cover 341c extends from its first end face 12c into the first cylinder 1c and from its second end face 24c into the second cylinder 2c at its two circumferential ends, respectively. The first cylinder 1c and the second cylinder 2c are rotatable relative to the shielding cover 341c. This ensures that even when bent, the shielding cover 341c can still block the gap between the first end face 12c and the second end face 24c.

[0163] Optionally, the central angle of the arc surface where the shield 341c is located is greater than the relative rotation angle between the first cylinder 1c and the second cylinder 2c. This ensures that when the first cylinder 1c and the second cylinder 2c are at any bending angle, the shield 341c can better shield the gap between the first end face 12c and the second end face 24c, thus providing better protection.

[0164] Referring to Figures 34 and 35, the arc surface of the shield 341c is concentrically arranged with the pivot axis of the pivot structure 3c. The shield 341c has a first connecting portion 3411c and a second connecting portion 3412c that are relatively spaced apart along the axial direction of its circumferential surface. Both the first connecting portion 3411c and the second connecting portion 3412c are connected to the pivot axis of the pivot structure 3c. The first connecting portion 3411c and the second connecting portion 3412c allow the shield 341c to be better installed on the pivot structure 3c, preventing it from falling off and ensuring the reliability of the shielding.

[0165] The folding blower 100c also includes a fan assembly 5c, which generates airflow power, allowing external airflow to be introduced from the air inlet through the second cylinder 2c toward the first cylinder 1c. At least a portion of the fan assembly 5c is located within the pivot structure 3c, allowing for a shorter length of the first cylinder 1c, resulting in a shorter air outlet path and higher hot air outlet efficiency. A shield 341c surrounds the outside of the fan assembly 5c, and multiple blind holes are provided on the inner side of the shield 341c, facing the fan assembly 5c. These blind holes create a noise reduction effect, resulting in lower noise during operation of the entire folding blower 100c.

[0166] The folding blower 100c also includes an air guide duct 6c, and a fan assembly 5c including a fan bracket 51c and a fan body 52c disposed within the fan bracket 51c. The air guide duct 6c is located inside the first cylinder 1c and one end is connected to the fan bracket 51c. The air guide duct 6c has a first end connected to the fan bracket 51c and a second end located near the air outlet end of the first air duct 1c. The central axis of the first end of the air guide duct 6c and the central axis of the second end of the air guide duct 6c are set at an angle to better connect with the fan assembly 5c located within the pivot structure 3c. The airflow blown from the fan assembly 5c can be better directed towards the air outlet end of the folding blower 100c along the air guide duct 6c. The portion of the air guide duct 6c located within the cylinder is arranged in a straight line, thus the airflow outlet path is shorter, the airflow loss is lower, and the airflow volume can be better guaranteed.

[0167] Furthermore, as shown in Figure 38, the fan assembly 5c also includes an air venting sleeve 8c, which is fitted onto the air inlet end of the fan bracket 51c. The air venting sleeve 8c has a sleeve body fitted onto the outside of the fan bracket 51c and multiple air venting holes located on the inside of the sleeve body. These multiple air venting holes ensure a more uniform airflow into the fan assembly 5c.

[0168] The pivot structure 3c is mainly used for rotatably connecting the first cylinder 1c and the second cylinder 2c. Optionally, as shown in Figures 33 and 35, the pivot structure 3c includes a first rotating part 31c and a second rotating part 32c. The first rotating part 31c is located at the first connecting end of the first cylinder 1c. The second rotating part 32c is located at the second connecting end of the second cylinder 2c and is rotatably connected to the first rotating part 31c. The blocking part 34c is rotatably connected to the rotatable connection between the first rotating part 31c and the second rotating part 32c. When switching from the extended state to the bent state, the first end face of the first cylinder 1c and the second end face of the second cylinder 2c move closer to each other, so that when in the bent state, at least a portion of the blocking part 34c is exposed from the first cylinder 1c and the second cylinder 2c, thereby ensuring the sealing of the folding blower device 100c.

[0169] Further, referring to Figure 35, 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 axial end of the first cylindrical body 1c and is eccentrically disposed in the radial direction of the first cylindrical body 1c. The axial direction of the first rotating sleeve 311c is perpendicular to the rotation plane where the first cylindrical body 1c and the second cylindrical body 2c are located. Optionally, the first rotating sleeve 311c is integrally disposed with the first cylindrical body 1c. The second cylindrical body 2c includes a first half-shell 22c and a second half-shell 23c connected together. The second rotating part 32c includes a first sleeve 3211c and a second sleeve 3212c connected together. The first sleeve 3211c is connected to the first half-shell 22c, and the second sleeve 3212c is connected to the second half-shell 23c. The first sleeve 3211c and the second sleeve 3212c are respectively rotatably connected to the two ends of the first rotating sleeve 311c along its axial direction for easy assembly. Optionally, the first body 3211c and the first half-shell 22c are integrally formed, and the second body 3212c and the second half-shell 23c are integrally formed, which reduces the number of assembly parts and makes assembly more convenient.

[0170] Specifically, the first rotating sleeve 311c is arranged in an annular shape, and at least a portion of the first rotating sleeve 311c protrudes from the first cylinder 1c in the radial direction, such that the central axis of the first rotating sleeve 311c is located on the first side of the first cylinder 1c. Moreover, 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, and the first cylinder 1c and the second cylinder 2c are respectively located at the two ends of the axial direction of the rotating column 3111c, so as to be rotatably connected to the two ends of the axial direction of the rotating column 3111c.

[0171] 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.

[0172] The first sleeve 3211c is a cylindrical shape with openings at both ends. Optionally, as shown in Figure 35, the folding blower 100c also includes a panel bracket 7c connected to the first sleeve 3211c. The panel bracket 7c is located on the side of the first sleeve 3211c facing away from the second sleeve 3212c, covering the end of the first sleeve 3211c. The panel bracket 7c and the second sleeve 3212c are connected by a connector (such as a screw or bolt). A corresponding arc-shaped hole is provided on the partition of the first rotating sleeve 311c. The connector between the panel bracket 7c and the second sleeve 3212c passes through the arc-shaped hole, so that when the first cylinder 1c and the second cylinder 2c rotate relative to the rotating column 3111c, the connector can move along the arc-shaped hole. A first rotating convex shaft protrudes from the panel bracket 7c, and a first rotating hole is provided at one end of the rotating column 3111c, so that the panel bracket 7c and the first sleeve 3211c are rotatably connected to the rotating column 3111c. The outer periphery of the panel bracket 7c is provided with multiple hooks, and the inner ring side of the first body 3211c is provided with multiple buckles. The multiple hooks and multiple buckles are connected one by one to fix the panel bracket 7c to the first body 3211c.

[0173] The second cylinder 2c is a cylindrical shape with one end open and the other end closed. The second rotating hole is located at the end of the second sleeve 3212c, and the second rotating convex shaft is located at the other end of the rotating column 3111c, so that the second sleeve 3212c is rotatably connected to the first rotating sleeve 311c.

[0174] As shown in Figures 35 to 37, the first connecting portion 3411c and the second connecting portion 3412c extend radially towards the center from the shielding portion 34c. The first connecting portion 3411c connects one axial end of the rotating column 3111c and the first sleeve 3211c, while the second connecting portion 3412c connects the other axial end of the rotating column 3111c and the second sleeve 3212c. The arc surface of the shielding portion 34c is concentrically arranged 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 3412c can be better accommodated within the first cylinder 1c and the second cylinder 2c.

[0175] Furthermore, the fan assembly 5c also includes a conductor wire, with a guide post provided within the interlayer. The conductor wire can be wound from the fan body 52c into the interlayer and enter the second cylinder 2c via the guide post. The guide post protrudes from the first rotating sleeve 311c and abuts against the panel bracket 7c. The guide post is located on the outer periphery of the fan bracket 51c, and the spacing between the guide post and the fan bracket 51c forms a groove for the conductor wire to pass through.

[0176] Example 4

[0177] Referring to Figures 39 to 42, 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.

[0178] Specifically, please refer to Figures 39 and 40. In this embodiment, the folding blower device 100d includes a handle structure 1d, a blower structure 2d, a pivot structure 3d, and a display device 4d. The pivot structure 3d rotatably connects the handle structure 1d and the blower structure 2d, so that the handle structure 1d and the blower structure 2d can be in a first working state where they are coaxially arranged, and in a second working state where their central axes can be at any angle. The display device 4d is disposed on the pivot structure 3d and located at one end of the axial direction of the pivot axis of the pivot structure 3d.

[0179] In this embodiment, the handle structure 1d and the air blower structure 2d are rotatably connected via the pivot structure 3d, allowing the handle structure 1d and the air blower structure 2d to rotate relative to each other at different angles, thus enabling the folding hair dryer 100d to operate in different states. Specifically, the handle structure 1d and the air blower structure 2d can be in at least a first working state where they are coaxially aligned, forming a cylindrical structure for easy gripping and operation such as curling or straightening hair; it can also operate in a conventional bent position for regular hair drying. By changing the rotational position of the handle structure 1d and the air blower structure 2d, the folding hair dryer 100d can operate in different positions, resulting in more diverse operating modes. Furthermore, by placing the display device 4d on the pivot structure 3d, it does not occupy the internal space of the handle structure 1d and / or the air duct structure 2d. On the other hand, compared to the method where the display device 4d is placed on the side of the air duct structure 2d facing away from the air outlet, the display device 4d in this application is placed at one end of the axial direction of the pivot axis of the pivot structure 3d. During the use of the folding hair dryer 100d, the display device 4d can be observed at any time without having to turn the direction of the air duct structure 2d. This allows the display device 4d to be effectively observed even when the air duct structure 2d is in the blow-drying state. Obviously, it is more convenient and smoother to use, and the overall intelligent user experience of the folding hair dryer 100d is also better.

[0180] As shown in Figures 39 and 40, both the handle structure 1d and the air duct structure 2d are approximately cylindrical. Their diameters and / or lengths can be identical, or their lengths and diameters can differ. Optionally, the diameters of the handle structure 1d and the air duct structure 2d are identical, and their lengths are identical, resulting in a smoother overall structure and a more aesthetically pleasing appearance when the folding blower device 100d is in its first working state. Optionally, the central axis of the handle structure 1d and the central axis of the air duct structure 2d are on the same plane of rotation. In the first working state, the handle structure 1d and the air duct structure 2d are aligned axially; in the second working state, the air duct structure 2d is positioned to one side of the handle structure 1d to create lateral airflow. The length direction of the handle structure 1d is its axial direction, and the length direction of the air duct structure 2d is its axial direction.

[0181] The pivot structure 3d is also roughly cylindrical. The central axis of the pivot structure 3d is perpendicular to the central axis of the handle structure 1d and the central axis of the air duct structure 2d, and the central axis of the pivot structure 3d forms the rotation axis of the handle structure 1d and the air duct structure 2d. The handle structure 1d has a first end and a second end that are opposite to each other along its axial direction, and the air duct structure 2d also has a first end and a second end that are opposite to each other along its axial direction. The pivot structure 3d is connected to the first end of the handle structure 1d and the first end of the air duct structure 2d. The second end of the handle structure 1d and the second end of the air duct structure 2d are both free ends, so that by rotating the handle structure 1d and / or the air duct structure 2d, the folding blower 100d can be in different working modes.

[0182] Furthermore, the pivot structure 3d has a first end and a second end that are arranged opposite to each other along its axial direction. Optionally, the display device 4d is disposed at the first end of the pivot structure 3d, and the shape of the display device 4d matches the shape of the cross-section of the pivot structure 3d. The display device 4d is also generally arranged in a disc shape, so that the display device 4d can be better installed on the pivot structure 3d and the appearance is more beautiful and smooth.

[0183] Optionally, as shown in FIG40, the cross-sectional area of ​​the display device 4d is smaller than the cross-sectional area of ​​the pivot structure 3d. The cross-sectional area of ​​the display device 4d may be slightly smaller than the cross-sectional area of ​​the pivot structure 3d, so that the display device 4d is located inside the pivot structure 3d, and the pivot structure 3d can protect the periphery of the display device 4d in the circumferential direction.

[0184] Furthermore, the display device 4d is positioned without protruding from the first end of the pivot structure 3d. The display device 4d may be flush with the first end of the pivot structure 3d. Optionally, along the axial direction of the pivot structure 3d, the display end face of the display device 4d is slightly lower than the end face of the first end of the pivot structure 3d, so that the pivot structure 3d can better protect the display device 4d in the axial direction and avoid wear on the display end face of the display device 4d.

[0185] It should be noted that, when the folding blower 100d is placed on a horizontal surface, the axial directions of the handle structure 1d and the air duct structure 2d are both horizontal, while the axial direction of the pivot structure 3d is vertical. Specifically, the first end of the pivot structure 3d faces upward, and the second end faces downward. All descriptions of orientation in this application shall be based on this.

[0186] In one embodiment, as shown in Figures 39 and 41, the handle structure 1d includes a handle body 11d and a button assembly 12d disposed on the handle body 11d. The display device 4d and the button assembly 12d are located on the same side of the handle structure 1d. When the user holds the handle body 11d, the display device 4d also faces the user when the button assembly 12d faces the user. This facilitates the user's operation and adjustment of the folding hair dryer 100d, while also allowing the user to better observe the display status on the display device 4d, making operation more convenient.

[0187] Specifically, regarding the pivot structure 3d, as shown in Figure 41, the pivot structure 3d includes an outer cylinder 31d and an inner cylinder 32d that are rotatably nested together. The outer cylinder 31d is connected to the handle structure 1d, and the inner cylinder 32d is connected to the air duct structure 2d. The display device 4d is located on the outer cylinder 31d and at its first end, so as to be better oriented towards the user for easy viewing. The rotation of the outer cylinder 31d and the inner cylinder 32d allows the handle structure 1d and the air duct structure 2d to rotate relative to each other, and the cylindrical rotating structure allows for a larger rotation angle, thus making the working modes more diverse.

[0188] Optionally, the outer cylinder 31d and the handle structure 1d are integrally formed, with the outer cylinder 31d protruding from the first end of the handle structure 1d and communicating with it. The inner cylinder 32d and the air duct structure 2d are integrally formed, with the inner cylinder 32d protruding from the first end of the air duct structure 2d and communicating with it. Airflow can enter the air duct structure 2d from the air duct structure 2d via the pivot structure 3d, and finally exit from the air outlet at the second end of the air duct structure 2d.

[0189] As shown in Figure 41, the handle body 11d includes an upper handle body 111d and a lower handle body 112d that are detachably connected radially, with the upper handle body 111d located above the lower handle body 112d. The outer cylinder 31d also includes an upper cylinder 311d and a lower cylinder 312d. The upper cylinder 311d and the upper handle body 111d are integrally formed, and the lower cylinder 312d and the lower handle body 112d are integrally formed. The upper cylinder 311d and the lower cylinder 312d are respectively clamped at the upper and lower ends of the inner cylinder 32d and cover the outer periphery of the inner cylinder 32d. The display device 4d is installed at the end of the upper cylinder 311d.

[0190] Specifically, for the display device 4d, as shown in Figures 41 and 42, the display device 4d includes a display bracket 42d, a display screen 41d, and a supporting rubber ring 43d. The display bracket 42d is located at the first end of the outer cylinder 31d and forms an installation gap between it and the first end of the outer cylinder 31d; the display screen 41d is located within the installation gap; the supporting rubber ring 43d is located on the display bracket 42d and within the installation gap, and the supporting rubber ring 43d and the outer cylinder 31d respectively abut against the two axial ends of the display screen 41d. The display bracket 42d abuts the display screen 41d against the first end of the outer cylinder 31d, and the supporting rubber ring 43d abuts between the display bracket 42d and the display screen 41d, effectively protecting the display screen 41d.

[0191] Furthermore, the display bracket 42d is arranged in a ring shape, and multiple snap-fit ​​ribs 421d protrude from the inner ring side of the display bracket 42d. The multiple snap-fit ​​ribs 421d are arranged at intervals along the circumference of the display bracket 42d. The shape of the supporting rubber ring 43d matches the shape of the display bracket 42d. The supporting rubber ring 43d is sleeved on the inner side of the display bracket 42d, and one end of the supporting rubber ring 43d is provided with multiple slots 431d that are correspondingly engaged with the multiple snap-fit ​​ribs 421d. The other end of the supporting rubber ring 43d abuts against the display screen 41d. The bottom of the multiple supporting rubber rings 43d is provided with multiple slots 431d. The multiple slots 431d are respectively engaged with the multiple connecting ribs 421d, thereby fixing the supporting rubber rings 43d to the display bracket 42d. Then, the supporting rubber rings 43d directly contact the display screen 41d to abut and fix the display screen 41d to the outer cylinder 31d.

[0192] Specifically, during assembly, the display bracket 42d and the supporting rubber ring 43d are first fixed in place. Furthermore, multiple hooks 422d are provided on the outer ring side of the display bracket 42d, and multiple grooves 3111d are provided on the inner side of the upper cylinder 311d. The hooks 422d are engaged with the grooves 3111d one by one to fix the display bracket 42d onto the upper cylinder 311d, and the display screen 41d is pressed between the supporting rubber ring 43d and the upper end of the upper cylinder 311d. A first connecting stud is provided on the inner ring side of the display bracket 42d, and a second connecting stud is provided on the lower cylinder 312d. Screws or bolts are inserted into the first and second connecting studs to further connect and fix the display bracket 42d and the lower cylinder 312d, allowing the upper cylinder 311d and the lower cylinder 312d to be respectively clamped and fixed to both ends of the inner cylinder 32d.

[0193] The display screen 41d can be set as a touch screen, which can display 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 41d, making the operation of the folding hair dryer 100d more intelligent and effectively improving the user experience.

[0194] Furthermore, a circuit board is installed inside the handle structure 1d, and the display screen 41d is electrically connected to the circuit board via a wire. A wire-passing hole 321d is provided on the inner wall of the inner cylinder 32d, and the wire can be led out from the display screen 41d, pass through the wire-passing hole 321d to enter the handle body 11d and be connected to the circuit board. Example 5

[0195] Referring to Figures 43 to 48, this application specifically provides a folding blower device 100e. It should be noted that the folding blower device 100e in this specific embodiment 5 can be the folding blower device in specific embodiment 1 described above, or it can be another folding blower device different from those in specific embodiment 1 described above. Similarly, one or more embodiments in this specific embodiment 5 can be combined with one or more embodiments from specific embodiments 2 to 4 described above, and it should also have the effects possessed by the above embodiments, which will not be elaborated further.

[0196] Specifically, please refer to Figures 43 and 44. In this embodiment, the folding hair dryer 100e includes a handheld component 1e and an air outlet component 2e, and a pivot portion 3e that rotatably connects the handheld component 1e and the air outlet component 2e. The pivot portion 3e includes a first rotating sleeve 31e and a second rotating sleeve 32e. The first rotating sleeve 31e is rotatably sleeved on the outside of the second rotating sleeve 32e. The first rotating sleeve 31e is connected to one end of the handheld component 1e, and the second rotating sleeve 32e is connected to one end of the air outlet component 2e. The first rotating sleeve 31e rotates relative to the second rotating sleeve 32e, so that the handheld component 1e and the air outlet component 2e can be in a first working state where they are coaxially arranged, and in a second working state where they are angled together.

[0197] In this embodiment, the handheld component 1e and the air outlet component 2e are rotatably connected by a pivot part 3e, and the pivot part 3e includes a first rotating sleeve 31e and a second rotating sleeve 32e. The first rotating sleeve 31e is located at one end of the handheld component 1e, and the second rotating sleeve 32e is located at one end of the air outlet component 2e. The first rotating sleeve 31e and the second rotating sleeve 32e are not located inside the handheld component 1e and the air outlet component 2e, and will not occupy the internal space of the handheld component 1e and the air outlet component 2e, so as to better optimize or reduce the volume of the handheld component 1e and the air outlet component 2e. Furthermore, by interlocking and rotating the first rotating sleeve 31e and the second rotating sleeve 32e, the handheld component 1e and the air outlet component 2e can rotate on the same rotating plane when rotating relative to each other. This allows the handheld component 1e and the air outlet component 2e to be in a first working state where they are coaxially arranged, i.e., arranged in a straight line, forming a cylindrical hair dryer 100e for easier curling or straightening. It also allows the handheld component 1e and the air outlet component 2e to be in a second working state where they are angled together, operating in a conventional hair drying mode, thus offering more diverse working modes. Moreover, since both the first rotating sleeve 31e and the second rotating sleeve 32e are located outside the handheld component 1e and the air outlet component 2e, their rotation is not affected by the outer walls of the handheld component 1e and the air outlet component 2e, resulting in a larger rotation space and allowing for a wider rotation angle and more flexible usage modes.

[0198] Both the handheld component 1e and the air outlet component 2e can be approximately cylindrical. Optionally, the handheld component 1e and the air outlet component 2e can be cylindrical with the same diameter and length, making the folding hair dryer 100e smaller and easier to store when in its first working state. The first rotating sleeve 31e is located at one end of the axial direction of the handheld component 1e and is integrally formed with it; the second rotating sleeve 32e is located at one end of the axial direction of the air outlet component 2e and is integrally formed with it, resulting in a simpler structure and easier assembly. Further optionally, the central axis of the handheld component 1e and the central axis of the air outlet component 2e are on the same plane and are both perpendicular to the central axis of the pivot part 3e, which better ensures that the handheld component 1e and the air outlet component 2e can operate in the same straight line position when in the first working state, making the folding hair dryer 100e smoother overall.

[0199] Optionally, as shown in FIG46, the handheld component 1e includes a first handle housing 11e and a second handle housing 12e that are radially connected to each other. The first rotating sleeve 31e includes a first sleeve segment 311e and a second sleeve segment 312e. The first sleeve segment 311e is located at the end of the first handle housing 11e, and the second sleeve segment 312e is located at the end of the second handle housing 12e. The first sleeve segment 311e and the second sleeve segment 312e together surround the outer periphery of the second rotating sleeve 32e. The handheld component 1e is configured with a detachably connected first handle housing 11e and a second handle housing 12e. This design facilitates the installation of other components within the first and second handle housings 11e and 12e, such as a circuit structure 6e or a suction device. The circuit structure 6e controls the suction device, which draws external airflow into the handheld component 1e and conducts it through the pivot 3e to the air outlet 2e. A heating element can be installed within the air outlet 2e, and the airflow, after being heated by the heating element, flows out from the air outlet of the air outlet 2e for drying or styling hair. The air outlet is formed at the opposite end of the axial direction of the air outlet 2e. Furthermore, the first rotating sleeve 31e is split into a first connecting segment 311e and a second connecting segment 312e, making the assembly of the first rotating sleeve 31e and the second rotating sleeve 32e easier.

[0200] Furthermore, a first air passage hole communicating with the handheld component 1e is formed on the peripheral side of the first rotating sleeve 31e. Specifically, both the first connecting segment 311e and the second connecting segment 312e are cylindrically arranged extending axially along the pivot portion 3e. A notch is provided on the same side of both the first connecting segment 311e and the second connecting segment 312e, and the notch on the first connecting segment 311e and the notch on the second connecting segment 312e together form the first air passage hole. An air guide channel 323e is formed inside the second rotating sleeve 32e. The air guide channel 323e extends radially along the second rotating sleeve 32e. One end of the air guide channel 323e is connected to the air outlet component 2e, and the other end forms a second air passage hole on the peripheral side of the second rotating sleeve 32e. When the folding blower 100e switches between the first working state and the second working state, the first air passage hole and the second air passage hole are always at least partially connected. As shown by the dashed arrows in Figure 45, the airflow can enter the air guide channel 323e from the first and second air passages of the handheld part 1e, and then enter the air outlet 2e through the air guide channel 323e. Moreover, when the handheld part 1e and the air outlet 2e rotate relative to each other, the first air passage can always be connected to the second air passage, thereby ensuring that the airflow can be better discharged from the air outlet 2e during the rotation process, thus ensuring the air outlet efficiency.

[0201] Furthermore, as shown in Figure 46, the pivot portion 3e also includes a cover 4e slidably connected to the second rotating sleeve 32e. The cover 4e is slidably engaged on one side of the second air passage, allowing at least a portion of the second air passage to communicate with the first air passage. An air inlet gap is formed between the cover 4e, the handheld component 1e, and the air outlet component 2e. The cover 4e can be used to decorate the circumference of the second rotating sleeve 32e, making its appearance more compact and aesthetically pleasing. Moreover, since the cover 4e is rotatably connected to both the first rotating sleeve 31e and the second rotating sleeve 32e, and an air inlet gap is formed at the rotatable connection, when the folding blower 100e is in its second working state, some airflow can enter the air guide channel 323e from the air inlet gap to improve air intake efficiency, thereby improving air outlet efficiency.

[0202] The shielding cover 4e is arc-shaped and adapted to the second rotating sleeve 32e. The shielding cover 4e is provided with a sliding buckle 41e on both sides along the axial direction of the second rotating sleeve 32e. The two ends of the second rotating sleeve 32e are provided with sliding grooves 321e. The two sliding buckles 41e are locked in the two sliding grooves 321e in a one-to-one correspondence. The cooperation between the sliding buckles 41e and the sliding grooves 321e makes the first rotating sleeve 31e and the second rotating sleeve 32e more stable and less prone to shaking when rotating.

[0203] Furthermore, the handheld component 1e also includes a handle housing 13e sleeved on the outside of the first handle housing 11e and the second handle housing 12e. The handle housing 13e is generally cylindrical to cover the outside of the first handle housing 11e and the second handle housing 12e. The handle housing 13e protrudes from the first handle housing 11e and the second handle housing 12e at one end facing the pivot portion 3e. At least a portion of the cover 4e on both sides along the circumferential direction can extend into the inside of the handle housing 13e and the air outlet 2e, respectively. When the handheld component 1e and the air outlet 2e are rotated to the second working state, it is ensured that at least a portion of the cover 4e still extends into the inside of the handheld component 1e and the air outlet 2e, making the overall structure more aesthetically pleasing.

[0204] Furthermore, as shown in Figures 46 to 48, locking notches 313e are provided on both sides of the first air passage along the axial direction of the second rotating sleeve 32e. Two sliding buckles 41e are located in the two locking notches 313e respectively, and the second rotating sleeve 32e is provided with a clearance notch 322e at the corresponding second air passage. The two clearance notches 322e are provided at one end of the two sliding grooves 321e. When the air outlet rotates along the first direction, causing the folding hair dryer 100e to switch from the first working state to the second working state, the two sides of each sliding buckle 41e along the circumferential direction can respectively abut against one side of the locking notch 313e and one side of the clearance notch 322e to limit the continuous rotation of the air outlet along the first direction, so as to be in the extreme position of rotation along the first direction. The handheld part 1e and the air outlet 2e can be kept in the second working state for operation. Optionally, at this time, the included angle between the handheld part 1e and the air outlet 2e can be 80°, so that the air outlet can be better directed towards the hair. When the handheld component 1e and the air outlet component 2e are fully extended to be in the first working state, the handle housing 13e of the handheld component 1e can be connected to the end of the air outlet component 2e, so that the handheld component 1e and the air outlet component 2e can work in a straight line at 180° to realize the switching of different working modes.

[0205] In one embodiment, the folding hair dryer 100e further includes a display component 5e, a circuit structure 6e disposed within the handheld component 1e, and a conductor wire electrically connecting the display component 5e and the circuit structure 6e. The display component 5e is disposed at one end of the axial direction of the pivot portion 3e. A wire hole 324e is provided on the second rotating sleeve 32e, and the conductor wire passes through the second rotating sleeve 32e and through the wire hole 324e to connect to the circuit structure 6e. The display component 5e may include a display screen 51e, a support frame 52e, and a buffer pad 53e. The support frame 52e supports and fixes the display screen 51e within the first sleeve section 311e, and the buffer pad 53e is sandwiched between the display screen 51e and the support frame 52e to better protect the display screen 51e and prevent it from being damaged. The support frame 52e can be snapped into the inner side of the first sleeve segment 311e via a snap-fit ​​structure. A first mounting post is also provided on the support frame 52e, and a second mounting post is provided on the second sleeve segment 312e. Screws or bolts are inserted into the first and second mounting posts to connect and fix the support frame 52e and the second sleeve segment 312e. Furthermore, a clearance arc hole is provided at the end of the second rotating sleeve 32e, extending circumferentially along the second rotating sleeve 32e. The second mounting post passes through the clearance arc hole, allowing it to move along the clearance arc hole when the first rotating sleeve 31e rotates relative to the second rotating sleeve 32e.

[0206] The folding blower 100e also includes a decorative cover 7e, which is detachably mounted on the other end of the second rotating sleeve 32e. The decorative cover 7e has multiple protruding hooks, and the end of the second sleeve section 312e has multiple locking holes, with each hook corresponding to one of the locking holes.

[0207] Optionally, as shown in Figures 47 and 48, an air guide baffle is provided inside the second rotating sleeve 32e to form an air guide channel 323e, which connects the handheld part 1e and the air outlet part 2e; multiple wire holes 324e are provided, and all multiple wire holes 324e are located outside the air guide channel 323e, so that the airflow will not affect the wire connection and ensure the stability of the wire connection.

[0208] The above description is merely 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's 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 to have an extended state and a bent state; When in the extended state, the first cylinder and the second cylinder are arranged in a straight line, and the rotation center of the pivot structure is offset on the same side of the central axis of the first cylinder and the central axis of the second cylinder.

2. The folding blower device as described in claim 1, wherein, 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 lie on the same plane; and / or, When in the extended state, the first cylinder and the second cylinder are coaxially arranged; and / or, The pivot axis of the pivot structure is perpendicular to the central axis of the first cylinder and / or the central axis of the second cylinder; And / or, 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.

3. The folding blower device as described in claim 1, wherein, When rotating from the extended state to the bent state, the first side of the first cylinder and the first side of the second cylinder move toward each other; when in the extended state, the first side of the first cylinder and the first side of the second cylinder are flush. The pivot axis of the pivot structure is located outside the first side of the first cylinder and / or the second cylinder; or, The pivot axis of the pivot structure is located on the straight line of the first side of the first cylinder and / or the second cylinder.

4. The folding blower device as described in claim 1, wherein, The first cylindrical body has a first connecting end and a first free end arranged opposite to each other along its axial direction, and the second cylindrical body has a second connecting end and a second free end arranged opposite to each other along its axial direction; the pivoting structure connects the first connecting end and the second connecting end; the pivoting structure includes: The first rotating part is disposed at the first connecting end of the first cylinder; The second rotating part is disposed at the second connecting end of the second cylinder and is rotatably connected to the first rotating part; The shielding part is rotatably connected to the rotatable connection between the first rotating part and the second rotating part; When in the extended state, the shielding portion is located inside the first cylinder and the second cylinder; when in the bent state, at least a portion of the shielding portion is exposed from the first cylinder and the second cylinder.

5. The folding blower device as described in claim 4, wherein, The first rotating part includes a first rotating sleeve disposed at the first connecting end. The first rotating sleeve protrudes from the shaft end of the first cylinder and is eccentrically disposed along the radial direction of the first cylinder. The second cylindrical body includes a first half-shell and a second half-shell connected together; the second rotating part includes a first sleeve and a second sleeve connected together, the first sleeve being connected to the first half-shell and the second sleeve being connected to the second half-shell, and the first sleeve and the second sleeve being rotatably connected to the two ends of the first rotating sleeve along its axial direction.

6. The folding blower device as described in claim 5, wherein, The first rotating sleeve is arranged in a ring shape, and at least a portion of the first rotating sleeve protrudes from the first cylinder in the radial direction of the first cylinder. A rotating column is provided on the inner ring side of the first rotating sleeve. Between one end of the rotating column in the axial direction and the first sleeve, one of them is provided with a first rotating cam, and the other is provided with a first rotating hole that rotates and engages with the first rotating cam. Between the other end of the rotating column in the axial direction and the second sleeve, one of them is provided with a second rotating cam, and the other is provided with a second rotating hole that rotates and engages with the second rotating cam.

7. The folding blower device as described in claim 6, wherein, The shielding part is arc-shaped and has a first connecting part and a second connecting part that are relatively spaced apart along the axial direction of its circumferential surface. The first connecting part is connected between one end of the axial direction of the rotating column and the first sleeve, and the second connecting part is connected between the other end of the axial direction of the rotating column and the second sleeve. The arc surface where the shielding part is located is concentrically arranged with the arc surface where the first rotating sleeve is located.

8. The folding blower device as described in claim 4, wherein, The pivoting structure further 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 portion in a first direction, and the second cylinder rotates relative to the blocking portion in a second direction; in the extended state, the first limiting portion abuts against the first circumferential end of the blocking portion to restrict the first cylinder from continuously rotating in the first direction, and the second limiting portion abuts against the second circumferential end of the blocking portion to restrict the second cylinder from continuously rotating in the second direction; and / or, The pivoting structure further 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 portion in a second direction, and the second cylinder rotates relative to the blocking portion in a first direction; when in the bent state, the third limiting portion abuts against at least a portion of the blocking portion to restrict the first cylinder from continuously rotating in the second direction, and the fourth limiting portion abuts against at least a portion of the blocking portion to restrict the second cylinder from continuously rotating in the first direction.

9. The folding blower device as described in claim 5, wherein, The folding blower also includes a fan assembly and an air guide tube. The fan assembly includes a fan bracket and a fan body disposed within the fan bracket. The air guide tube is disposed inside the first tube and one end is connected to the fan bracket. The air guide tube has a first end connected to the fan bracket and a second end disposed near the air outlet end of the first air guide tube. The central axis of the first end of the air guide tube and the central axis of the second end of the air guide tube are arranged at an angle.

10. The folding blower device as described in claim 9, wherein, The folding blower also includes a panel bracket connected to the first sleeve body. The panel bracket is located on the side of the first sleeve body facing away from the second sleeve body and forms a sandwich between it and the first rotating sleeve. The fan assembly also includes a conductor wire, and a conductor post is provided in the interlayer. The conductor wire can be wound from the fan body into the interlayer and enter the second cylinder through the conductor post.

11. A folding blower device, wherein, include: A duct assembly and a handle assembly, wherein the length of the duct assembly along its axial direction is less than the length of the handle assembly along its axial direction; 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. The fan assembly is located inside the air duct assembly.

12. The folding blower device as described in claim 11, wherein, The air inlet of the fan assembly is connected to the handle assembly, and the air outlet of the fan assembly is connected to the air duct assembly. When switching between the extended state and the bent state, the air duct assembly rotates, causing the fan assembly to rotate as well, while maintaining the connection between the air inlet of the fan assembly and the handle assembly.

13. The folding blower device as described in claim 11, wherein, When in the extended state, the air duct assembly and the handle assembly are coaxially arranged; the central axis of the fan assembly is in the same plane as the central axis of the air duct assembly and the central axis of the handle assembly, and they intersect each other.

14. The folding blower device as described in claim 11, wherein, The fan assembly is provided with a first snap-fit ​​part and a first rotating part. The first snap-fit ​​part is provided at the air outlet end of the fan assembly and is used to snap-fit ​​with the first mating part inside the air duct assembly. The first rotating part is provided on the outer periphery of the fan assembly and is adapted to be rotatably connected to the pivot shaft of the pivot structure.

15. The folding blower device as described in claim 14, wherein, The wind turbine assembly includes: The fan bracket is cylindrical with openings at both ends. The first snap-fit ​​part includes a snap-fit ​​hole at one end of the fan bracket facing the fan duct assembly. The first rotating part includes a rotating hole on the outer periphery of the fan bracket. The main body of the fan is housed within the fan support frame; The rotation of the duct assembly causes the fan bracket to rotate relative to the pivot structure, so that the fan body can rotate as well.

16. The folding blower device as described in claim 15, wherein, The folding blower also includes a heating component disposed within the blower assembly, the heating component comprising: An air guide duct, one end of which is connected to the fan bracket and the other end of which extends toward the air outlet of the air duct assembly; the first mating part includes a hook at one end of the air guide duct, which is engaged with the corresponding locking hole. The heating element is disposed inside the air guide duct and located at one end near the fan assembly.

17. The folding blower device as described in claim 16, wherein, 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 heating assembly also includes a sealing element, which is disposed at the end of the air guide tube that abuts against the bottom of the guide groove to seal between the air guide tube and the bottom of the guide groove.

18. The folding blower device as described in claim 16, wherein, The air guide duct 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. The main body end is fixed to the inner side of the air duct assembly, and its central axis is parallel to the central axis of the air duct assembly. The connecting end is connected to the fan bracket, and its central axis is set at an angle to the central axis of the main body end.

19. The folding blower device as described in claim 14, wherein, The duct assembly has a first connecting end and a first free end arranged opposite to each other along its axial direction, the handle assembly has a second connecting end and a second free end arranged opposite to each other along its axial direction, and the pivoting structure connects the first connecting end and the second connecting end; the pivoting structure includes: The first rotating part is located at the first connecting end of the air duct assembly; The second rotating part is disposed at the second connecting end of the handle assembly and is rotatably connected to the first rotating part; the first rotating part is coaxially rotatably connected to the first rotating part and the second rotating part. The shielding part is rotatably connected to the rotatable connection between the first rotating part and the second rotating part; In the extended state, the shielding portion is located within the air duct assembly and the handle assembly; in the bent state, at least a portion of the shielding portion is exposed from the air duct assembly and the handle assembly.

20. The folding blower device as claimed in claim 11, wherein, During the relative rotation of the air duct assembly and the handle assembly, the central axis of the air duct assembly and the central axis of the handle assembly lie on the same plane; and / or, The pivot axis of the pivot structure is perpendicular to the central axis of the air duct assembly and / or the central axis of the handle assembly; And / or, When in the extended state, the projections of the duct assembly and the handle assembly are both located on the same side of the projection of the plane containing the pivot axis of the pivot structure, in the orthogonal projection along the axial direction of the pivot structure.

21. A folding blower device, wherein, include: A first cylinder and a second cylinder, the first cylinder having a first end face at one end in its axial direction, and the second cylinder having a second end face at one end in its axial direction. 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 to have an extended state and a bent state; Both the first end face and the second end face are located near one end of the pivot structure. When switching from the bent state to the extended state, the first end face and the second end face are moved toward each other. Furthermore, when in the extended state, the first cylinder and the second cylinder are coaxially arranged, the first end face and the second end face are relatively spaced apart to form an anti-pinch gap, and the rotation center of the pivot structure is offset on the same side of the central axis of the first cylinder and the central axis of the second cylinder.

22. The folding blower device as described in claim 21, wherein, When in the extended state, the pivot axis of the pivot structure is perpendicular to the central axis of the first cylinder and the central axis of the second cylinder; a plane passing through the pivot axis and perpendicular to the central axis of the first cylinder and the central axis of the second cylinder is defined as plane S2, wherein the distance from the first end face to plane S2 is equal to the distance from the second end face to plane S2.

23. The folding blow apparatus of claim 21, wherein, The pivoting structure has a first side located outside the axial projection area of ​​the first cylinder and the second cylinder when in the extended state, and a second side located within the axial projection area of ​​the first cylinder and the second cylinder, wherein at least a portion of the second side of the pivoting structure is hollowed out. The folding blower also includes a shielding part, which is connected to the pivot structure and covers the hollow area of ​​the pivot structure, so that when switching from the extended state to the bent state, the shielding part can be gradually exposed from the gap between the first end face and the second end face.

24. The folded hair drying apparatus of claim 23 wherein, The shielding part is configured as a shielding cover, which is arc-shaped. The shielding cover extends into the first cylinder from the first end face and into the second cylinder from the second end face at both ends along its circumference. The first cylinder and the second cylinder can rotate relative to the shielding cover.

25. The folded hair drying apparatus of claim 24 wherein, The central angle of the arc surface where the shield is located is greater than the relative rotation angle between the first cylinder and the second cylinder.

26. The folded hair drying apparatus of claim 24 wherein, The folding blower also includes a fan assembly, at least a portion of which is located within the pivot structure, and the shield is disposed outside the fan assembly. The inner side of the shield is provided with a plurality of blind holes, which are arranged facing the fan assembly.

27. The folding blower device as described in claim 24, wherein, The arc surface of the shield is concentric with the pivot axis of the pivot structure. The shield has a first connecting portion and a second connecting portion that are relatively spaced apart along the axial direction of its circumferential surface. Both the first connecting portion and the second connecting portion are connected to the pivot axis of the pivot structure.

28. The folding blower device as described in claim 27, wherein, The first cylindrical body has a first connecting end and a first free end arranged opposite to each other along its axial direction, and the second cylindrical body has a second connecting end and a second free end arranged opposite to each other along its axial direction; the pivoting structure connects the first connecting end and the second connecting end; the pivoting structure includes: The first rotating part is disposed at the first connecting end of the first cylinder; The second rotating part is disposed at the second connecting end of the second cylinder and is rotatably connected to the first rotating part; The first connecting part and the second connecting part are rotatably connected to the rotation center of the first rotating part and the second rotating part.

29. The folding blower device as described in claim 28, wherein, The first rotating part includes a first rotating sleeve disposed at the first connecting end. The first rotating sleeve protrudes from the shaft end of the first cylinder and is eccentrically disposed along the radial direction of the first cylinder. The second cylindrical body includes a first half-shell and a second half-shell connected together; the second rotating part includes a first sleeve and a second sleeve connected together, the first sleeve being connected to the first half-shell and the second sleeve being connected to the second half-shell, and the first sleeve and the second sleeve being rotatably connected to the two ends of the first rotating sleeve along its axial direction.

30. The folding blower device as described in claim 29, wherein, The first rotating sleeve is arranged in a ring shape, and at least a portion of the first rotating sleeve protrudes from the first cylinder in the radial direction of the first cylinder. A rotating column is provided on the inner ring side of the first rotating sleeve. Between one end of the rotating column in the axial direction and the first sleeve, one of them is provided with a first rotating cam, and the other is provided with a first rotating hole that rotates and engages with the first rotating cam. Between the other end of the rotating column in the axial direction and the second sleeve, 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. The first connecting part is connected between one axial end of the rotating column and the first sleeve, and the second connecting part is connected between the other axial end of the rotating column and the second sleeve.

31. A folding blower device, wherein, include: Handle structure and air duct structure; A pivoting structure rotatably connects the handle structure and the air duct structure, such that the handle structure and the air duct structure can be in a first working state where they are coaxially arranged, and in a second working state where their central axes can be at any angle. The display device is disposed on the pivot structure and located at one end of the pivot axis of the pivot structure.

32. The folding blower device as described in claim 31, wherein, The central axis of the pivot structure is perpendicular to both the central axis of the handle structure and the central axis of the air duct structure, and the central axis of the pivot structure forms the rotation axis of the handle structure and the air duct structure.

33. The folding blower device as described in claim 31, wherein, The pivot structure is cylindrical and has a first end and a second end that are opposite to each other along its axial direction. The display device is disposed at the first end of the pivot structure and the shape of the display device matches the shape of the cross section of the pivot structure.

34. The folding blower device as described in claim 33, wherein, The cross-sectional area of ​​the display device is smaller than the cross-sectional area of ​​the pivot structure.

35. The folding blower device as described in claim 33, wherein, The display device is positioned at the first end of the pivot structure without protruding from it.

36. The folding blower device as described in claim 31, wherein, The pivoting structure includes an outer cylinder and an inner cylinder that are rotatably fitted together. The outer cylinder is connected to the handle structure, and the inner cylinder is connected to the air duct structure. The display device is disposed on the outer cylinder and located at the first end of the outer cylinder.

37. The folding blower device as described in claim 36, wherein, The display device includes: The display bracket is located at the first end of the outer cylinder and has an installation gap between it and the first end of the outer cylinder; The display screen is located within the mounting gap; A supporting rubber ring is provided on the display bracket and located within the installation gap. The supporting rubber ring and the outer cylinder respectively abut against the two ends of the display screen along the axial direction.

38. The folding blower device as described in claim 37, wherein, The display bracket is arranged in a ring shape, and the inner ring side of the display bracket is provided with a plurality of snap-fit ​​ribs, which are arranged at intervals along the circumference of the display bracket. The supporting rubber ring is sleeved on the inner side of the display bracket, and one end of the supporting rubber ring is provided with multiple slots that are corresponding to and engaged with the multiple snap-fit ​​ribs. The other end of the supporting rubber ring abuts against the display screen.

39. The folding blower device as described in claim 36, wherein, The outer cylinder and the handle structure are integrally formed, and the inner cylinder and the air duct structure are integrally formed.

40. The folding blower device as described in claim 31, wherein, The handle structure includes a handle body and a button assembly disposed on the handle body, wherein the display device and the button assembly are located on the same side of the handle structure.

41. A folding blower device, wherein, The device includes a handheld component and an air outlet component, and a pivot portion rotatably connecting the handheld component and the air outlet component. The pivot portion includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is rotatably sleeved on the outside of the second rotating sleeve. The first rotating sleeve is connected to one end of the handheld component, and the second rotating sleeve is connected to one end of the air outlet component. The first rotating sleeve rotates relative to the second rotating sleeve, so that the handheld component and the air outlet component can be in a first working state where they are coaxially arranged, and in a second working state where they are at an angle to each other.

42. The folding blower device as described in claim 41, wherein, The handheld component is cylindrical in shape, and the first rotatable sleeve is integrally formed with one axial end of the handheld component; and / or, The air outlet component is cylindrical, and the second rotatable sleeve is integrally formed with one end of the air outlet component along its axial direction; and / or, The central axis of the handheld component and the central axis of the air outlet component are on the same plane and are both perpendicular to the central axis of the pivot part.

43. The folding blower device as described in claim 41, wherein, The handheld component includes a first handle shell and a second handle shell that are radially connected to each other. The first rotating sleeve includes a first sleeve section and a second sleeve section. The first sleeve section is located at the end of the first handle shell, and the second sleeve section is located at the end of the second handle shell. The first sleeve section and the second sleeve section together surround the outer periphery of the second rotating sleeve.

44. The folding blower device as described in claim 43, wherein, The first rotating sleeve has a first air passage hole connected to the handheld component on its peripheral side; the second rotating sleeve has an air guide channel inside, one end of which is connected to the air outlet component and the other end of which forms a second air passage hole on the peripheral side of the second rotating sleeve. When the folding blower switches between the first working state and the second working state, the first air passage and the second air passage are always at least partially connected.

45. The folding blower device as described in claim 44, wherein, The pivot part further includes a shielding cover that is slidably connected to the second rotating sleeve. The shielding cover is slidably engaged on one side of the second air passage, so that at least a portion of the second air passage can communicate with the first air passage. An air inlet gap is formed between the shielding cover, the handheld component, and the air outlet component.

46. ​​The folding blower device as described in claim 45, wherein, The shielding cover is arranged in an arc shape to match the second rotating sleeve, and the shielding cover is provided with a sliding buckle on both sides along the axial direction of the second rotating sleeve. The two ends of the axial direction of the second rotating sleeve are respectively provided with sliding grooves, and the two sliding buckles are locked in the two sliding grooves one-to-one.

47. The folding blower device as described in claim 46, wherein, The handheld component further includes a handle housing fitted over the outside of the first handle housing and the second handle housing. The handle housing protrudes from the first handle housing and the second handle housing at one end facing the pivot. At least portions of the shielding cover on both sides along the circumferential direction can extend into the inside of the handle housing and the inside of the air outlet, respectively; and / or, The first air passage hole is provided with a snap-fit ​​notch on both sides along the axial direction of the second rotating sleeve. The two sliding buckles are located in the two snap-fit ​​notches in a one-to-one correspondence. The second rotating sleeve is provided with an avoidance notch at the corresponding second air passage hole. The two avoidance notches are provided at one end of the two sliding grooves. When the air outlet rotates along the first direction, causing the folding blower to switch from the first working state to the second working state, each of the sliding buckles can abut against one side of the snap-fit ​​notch and one side of the avoidance notch along the circumferential direction, respectively, to restrict the air outlet from continuously rotating along the first direction.

48. The folding blower device as described in claim 41, wherein, The folding blower also includes a display component, a circuit structure disposed within the handheld component, and a wire connecting the display component and the circuit structure. The display component is disposed at one end of the axial direction of the pivot portion. The second rotating sleeve is provided with a wire hole. The wire passes through the second rotating sleeve and through the wire hole to connect to the circuit structure.

49. The folding blower device as described in claim 48, wherein, The folding blower also includes a decorative cover, which is detachably located at the other end of the second rotating sleeve.

50. The folding blower device as described in claim 48, wherein, The second rotating sleeve is provided with an air guide baffle to form an air guide channel, which connects the handheld part and the air outlet part; multiple wire holes are provided, and all of the multiple wire holes are located outside the air guide channel.

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