Hair styling device

Abstract

This invention discloses a hair styling device, relating to the field of hair care technology. The device includes a main body and a pair of clamping parts. The clamping parts extend along a first direction, and their clamping surfaces can move closer or further apart in a second direction. An elastic reset member maintains the initial clamping state between the two parts. An airflow channel is provided within the clamping parts, with its inlet end connected to an air source and its outlet end located on the clamping parts. The discharged airflow is used to style hair strands downstream of the clamping space. The airflow channel is configured such that when the airflow passes through, it applies a force towards the other clamping part, forming an additional closing force. Thus, while retaining elastic clamping, the airflow enhances the clamping stability for thick or wet hair, eliminating the need for an additional drive mechanism. Even after airflow is cut off, the clamping surface remains essentially closed, effectively combining styling and clamping functions.

Description

Technical Field

[0001] This invention relates to the field of hair care technology, and in particular to a hair styling device. Background Technology

[0002] In daily use, users often need to temporarily place the straightener or curling iron on a table, dressing table, or storage bag while styling their hair. If the working end of the device remains open or exposed, its protruding structure can easily snag clothing, data cables, or other personal items, causing inconvenience and potentially pulling on cables or scratching the surface. Furthermore, because the clamping mechanism contains many assembled parts, prolonged exposure to air, especially in high-humidity and dusty environments like bathrooms, can easily accumulate hair debris and dust, leading to restricted movement, abnormal noises, or even jamming. On the other hand, when handling thick or wet hair, even after clamping, the hair can easily slip under the influence of hot airflow, affecting the styling result. To improve clamping force, some products incorporate motors or complex linkage mechanisms, which, while offering some improvement, lead to increased size, higher costs, and reduced reliability. Additionally, the clamping structure and airflow system are often independently designed, making effective coordination difficult. Summary of the Invention

[0003] The main objective of this invention is to provide a hair styling device that addresses the problems of insufficient clamping force and easy slippage of hair strands when using existing hair styling devices to handle thick, wet hair or high-speed airflow styling.

[0004] To achieve the above objectives, the hair styling device proposed in this invention includes: main body; A pair of clamping portions, movably mounted to the main body, each clamping portion extending along a first direction and having a clamping surface facing the other clamping portion, forming a clamping space for accommodating a hair bundle between the pair of clamping portions, the two clamping surfaces being configured to move closer or further apart from each other in a second direction; and, An elastic reset element is used to keep the two clamping surfaces in an initial clamping state where they abut against each other; The clamping part is provided with an airflow channel, which has an air inlet and an air outlet. The air inlet is used to connect to an air source, and the air outlet is located on the clamping part. The airflow discharged from the air outlet is used to style the hair strand located downstream of the clamping space. The airflow channel is configured to apply a force toward the other clamping part to the clamping part when the airflow flows through it.

[0005] In one embodiment, each of the pair of clamping portions is rotatably mounted to the body about a rotation axis extending along the first direction; The rotation axis is located on the side of the clamping surface away from the clamping space in the second direction, and on the side of the clamping portion away from the free end of the clamping surface in the third direction.

[0006] In one embodiment, the air outlet of the airflow channel is located on the side of the clamping portion away from the rotation axis in the third direction, and adjacent to the free end edge of the clamping surface in the third direction, so that the airflow discharged from the air outlet of the airflow channel is directed toward the outlet direction of the clamping space.

[0007] In one embodiment, the air inlet and outlet of the airflow channel are both located below the rotation axis in the third direction, and the outlet is located at the free end of the clamping surface, further away from the rotation axis and closer to the clamping surface in the third direction than the inlet.

[0008] In one embodiment, the main body has an air inlet at one end in a first direction, and the air inlet is connected to a main air duct extending along the first direction; The main air duct is provided with a diversion structure at its end. The diversion structure includes two guide slopes, which are respectively directed toward the air inlet ends of the two clamping parts. The air inlet end of each clamping part is located on both sides of the main body in the second direction, and is respectively arranged opposite to one of the guide slopes to receive the airflow guided by the guide slopes.

[0009] In one embodiment, the air inlet end of the airflow channel has an end face that is in contact with the corresponding surface of the main body; The main body has a windproof rib protruding in the area between the two clamping parts, and the windproof rib is located outside the assembly gap between the end face and the main body.

[0010] In one embodiment, a grille is provided inside the main air duct.

[0011] In one embodiment, the main body has two mounting cavities spaced apart in the second direction, and each of the two mounting cavities has an opening on one side that is opposite to the other. The pair of clamping parts are respectively installed in the two mounting cavities. When the two clamping surfaces are in the initial clamping state, the air outlet is located outside the opening.

[0012] In one embodiment, the main body includes an inner shell and an outer shell fitted around the periphery of the inner shell; The inner shell has the two mounting cavities and forms the opening on the side facing the clamping space; The outer shell covers the outer peripheral area of ​​the inner shell away from the clamping space, and forms a heat-insulating cavity between the outer shell and the inner shell.

[0013] In one embodiment, the elastic reset member includes a torsion spring.

[0014] The technical solution provided by this invention has at least the following advantages: By incorporating airflow channels within the clamping sections and applying a force towards one clamping section as the airflow passes through, the hair styling device not only relies on elastic reset components to provide basic clamping force during the styling process but also utilizes airflow to generate additional closing force, achieving stable clamping even for thick or wet hair. Simultaneously, the airflow can still be used for hot air styling of downstream hair strands; the entire device requires no additional drive mechanism, boasts a simple structure, high reliability, and maintains basic closing function even after airflow interruption. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the hair styling device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the explosion of the Sino-US nuclear power plant; Figure 3 for Figure 2 A schematic diagram of the clamping part in the middle; Figure 4 for Figure 1 A front view of the Sino-US air-to-ground device; Figure 5 for Figure 4 A top view of a pair of clamping parts; Figure 6 for Figure 1 A top-view schematic diagram of the Sino-US air-to-ground device; Figure 7 for Figure 6 Schematic diagram of the cross section of AA; Figure 8 for Figure 7 A magnified view of a section at point B in the middle; Figure 9 for Figure 1 A schematic diagram of the internal structure of the Sino-US air-to-ground device; Figure 10 for Figure 1 A partial structural diagram of the Sino-US air-to-ground device; Figure 11 for Figure 10A schematic diagram of part of the structure of the Sino-US development device from another perspective.

[0017] Explanation of icon numbers: 100. Hairdressing device; 1. Main body; a1. Air inlet; a2. Main air duct; 11. Diversion structure; 111. Guide slope; 12. Wind baffle; 13. Grille; b. Mounting cavity; 101. Inner shell; 102. Outer shell; c. Heat insulation cavity; 2. Clamping part; 2a. Clamping space; 2b. Airflow channel; 21. Clamping surface; 201. Air inlet end; 202. Air outlet end; 3. Elastic reset component; X, axis of rotation.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention 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. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "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 by this invention.

[0022] In the description of this invention, the spatial directions are defined based on the hair styling device in its normal use posture: the first direction is the left-right direction, corresponding to the width direction of the clamping part. The second direction is the front-back direction, corresponding to the opening and closing direction in which the two clamping surfaces move closer or further apart. The third direction is the up-down direction, where the downward direction is the natural extension direction of the hair strand under the action of gravity, that is, the downstream direction of the clamping space. The above directional definitions are only used to facilitate the description of the relative positional relationship between the components and do not constitute a limitation on the scope of protection of this invention.

[0023] Please see Figures 1 to 3 In one embodiment of the present invention, the hair styling device 100 includes a main body 1 and a pair of clamping parts 2. The clamping parts 2 are movably mounted on the main body 1. Each clamping part 2 extends along a first direction and has a clamping surface 21 facing the other clamping part 2. A clamping space 2a for accommodating hair bundles is formed between the pair of clamping parts 2. The two clamping surfaces 21 are configured to be able to approach or move away from each other in a second direction. An elastic reset member 3 is used to keep the two clamping surfaces 21 in an initial clamping state of mutual contact. The clamping part 2 is provided with an airflow channel 2b, which has an air inlet end 201 and an air outlet end 202. The air inlet end 201 is used to connect to an air source, and the air outlet end 202 is located on the clamping part 2. The airflow discharged from the air outlet end 202 is used to style the hair bundles located downstream of the clamping space 2a. The airflow channel 2b is configured to apply a force toward the other clamping part 2 when the airflow flows through it.

[0024] The main body 1 is a structure that supports the entire device and may include internal air ducts, heating or air supply components. The main body 1 can be a one-piece molded shell or assembled from multiple components, such as an inner support, a heat insulation layer, and an outer shell. The main body 1 can also typically have a part that is easy for the user to grip, balancing structural strength and user comfort. The specific composition can be determined according to product design requirements, and this specification does not limit this aspect.

[0025] Each clamping part 2 extends along the first direction corresponding to the width of the clamping part 2, that is, the lateral range occupied by the hair strand in the clamping space 2a during user operation. Please refer to... Figure 4 Each clamping part 2 has a clamping surface 21 facing the other clamping part 2. The two clamping surfaces 21 are arranged opposite each other in a second direction to form a clamping space 2a for accommodating the hair strand. The clamping part 2 can be a regular pressure plate or a heating plate with a built-in heating element for heat setting while clamping. In a typical usage, the user can place the hair strand into the clamping space 2a from above or the side, and the hair strand hangs down naturally under the action of gravity.

[0026] The two clamping surfaces 21 can move closer to or further away from each other in a second direction. At least one clamping part 2 is a rotatable structure, while the other can be fixed or rotatable. When the user applies an external force to swing the movable clamping part 2 outward, the two clamping surfaces 21 separate and enter the open state; after the external force is removed, they automatically return to their closed state by relying on the elastic reset member 3.

[0027] Please see Figure 2 The elastic reset element 3 is disposed between the main body 1 and the rotatable clamping part 2, and is used to keep the two clamping surfaces 21 in an initial clamping state of mutual abutment when no external force is applied. The elastic reset element 3 can be a torsion spring, tension spring, leaf spring or other elastic element with a reset function.

[0028] In a typical embodiment, the elastic reset member 3 is a torsion spring sleeved on the rotating shaft, with one end abutting against the limiting groove inside the clamping part 2 and the other end abutting against the support surface on the main body 1. When the clamping part 2 is opened by an external force, the torsion spring twists and stores energy; after the external force is removed, the torsion spring releases energy, driving the clamping part 2 to rotate, causing the clamping surface 21 to close again.

[0029] It should be noted that the preload of the elastic reset member 3 is set to a small value, which only needs to maintain the clamping surface 21 slightly closed, making it easy for the user to move around, while ensuring that the hair styling device 100 remains closed when idle, reducing the risk of dust entering and snagging.

[0030] The clamping part 2 is provided with an airflow channel 2b. The airflow channel 2b has an air inlet end 201 and an air outlet end 202. The air inlet end 201 is used to connect to an air source, such as communicating with the outlet of the fan inside the device or the main air duct a; the air outlet end 202 is located on the clamping part 2 and is arranged towards the downstream area of ​​the clamping space 2a.

[0031] It should be noted that "downstream" here refers to the direction in which the hair strand extends when it is naturally hanging down, which is generally vertically downward. The airflow discharged from the air outlet 202 is used to perform styling operations such as drying, curling or straightening on the hair strand located downstream of the clamping space 2a.

[0032] The airflow channel 2b is configured such that when the airflow flows from the inlet end 201 to the outlet end 202 and passes through the interior of the clamping part 2, it can apply a force toward the other clamping part 2 to the clamping part 2. This force can be achieved in various ways.

[0033] In one embodiment, the airflow channel 2b forms a local diffuser chamber inside the clamping part 2 (on the side near the clamping surface 21), where the airflow decelerates and increases in pressure, generating positive pressure on the inner wall of the clamping part 2 and pushing it towards the opposite side. In another embodiment, the air outlet 202 sprays air at a certain angle, and the reaction force acts on the body of the clamping part 2, creating a closing tendency. In yet another embodiment, a guide slope 111 can be provided on the back of the clamping part 2, so that a portion of the airflow impacts and generates a component force, assisting in the closing.

[0034] It should be noted that this additional force exists only when the airflow is on, and it is superimposed on the static reset force of the elastic reset member 3 to jointly enhance the clamping effect between the clamping surfaces 21. Especially when dealing with wet hair, coarse hair, or high-speed airflow scenarios, it can prevent hair strands from slipping. When the airflow is turned off, the hair styling device 100 still relies on the elastic reset member 3 to maintain a basically closed state, so even if the fan stops, the hair styling device 100 still has basic clamping function.

[0035] Of course, the specific direction, cross-sectional shape, number of air outlets 202, and injection angle of the airflow channel 2b can be adjusted according to actual needs. For example, a straight channel, a curved guide cavity, or a multi-hole array air outlet can be used. This specification does not limit the specific structural form of the airflow channel 2b, as long as it can generate a force on the clamping part 2 towards the other clamping part 2 when air is being circulated.

[0036] In summary, by providing an airflow channel 2b within the clamping part 2 and applying a force towards another clamping part 2 as the airflow passes through it, the hair styling device 100 not only relies on the elastic reset member 3 to provide basic clamping force during the styling process but also utilizes the airflow to generate additional closing force, achieving stable clamping for thick or wet hair. Simultaneously, the airflow can still be used for hot air styling of downstream hair strands; the entire device requires no additional drive mechanism, has a simple structure, high reliability, and maintains basic closing function even after airflow interruption.

[0037] Specifically, in order to ensure the hair styling device 100 has a compact structure while allowing the user to open and close the clamping surface 21 with minimal external force, please refer to [link to relevant documentation]. Figures 3 to 5 In this embodiment, a pair of clamping parts 2 are rotatably mounted on the main body 1 about a rotation axis X extending along a first direction. The rotation axis X is located on the side of the clamping surface 21 away from the clamping space 2a in a second direction, so that when the clamping part 2 rotates about the rotation axis X, the clamping surface 21 is displaced in the second direction, so that the two clamping surfaces 21 move closer or further apart from each other.

[0038] When the user applies external force to press the outside of the clamping part 2, the clamping part 2 rotates around the rotation axis X, causing the clamping surface 21 to be displaced in the second direction, thereby realizing the opening or closing action.

[0039] The rotation axis X is located in the upper region of the clamping part 2 in the third direction, near the connection point of the main body 1. Specifically, the clamping surface 21 is positioned on the side of the clamping surface 21 away from the clamping space 2a in the second direction. The clamping surface 21 faces the clamping space 2a (i.e., towards the opposite clamping part 2), while the rotation axis X is arranged on the back (outer) side of the clamping surface 21, maintaining a certain distance between them in the second direction. This arrangement allows a lever arm to be formed between the rotation axis X and the clamping surface 21. By applying a small pressing force to the lower end or outer edge of the clamping part 2, the user can generate a large opening and closing displacement at the clamping surface 21 through leverage, making operation less strenuous and the response more direct.

[0040] In addition, the rotation axis X is located on the back side of the clamping surface 21 to avoid the rotation axis structure from encroaching on the inner area facing the clamping space 2a. This provides a continuous and unobstructed space for arranging the airflow channel 2b, air outlet or heating element inside the clamping part 2, which is beneficial for optimizing the airflow.

[0041] Of course, the specific distance between the rotation axis X and the clamping surface 21 in the second direction can be flexibly adjusted according to the product size, target feel, and internal layout. Simultaneously, the height position of the rotation axis X in the third direction can also be set according to overall styling requirements, but it is usually located at the upper part of the clamping part 2 to allow space below for hair strands to pass through and for airflow to escape. This instruction manual does not limit the specific value of this distance, as long as the rotation axis X is located on the side of the clamping surface 21 away from the clamping space 2a, and stable rotation and reliable opening and closing are achieved.

[0042] By rotatably mounting a pair of clamping parts 2 on the main body 1 about a rotation axis X extending along a first direction, and positioning the rotation axis X in a second direction on the side of the clamping surface 21 away from the clamping space 2a, and in the upper region of the clamping part 2 in the third direction, an effective lever arm is formed. The user only needs to apply a small external force to achieve reliable opening and closing of the clamping surface 21. At the same time, this layout can reserve sufficient space for the lower end and inner side of the clamping part 2, which is convenient for integrating functional components such as the airflow channel 2b. The structure is compact and easy to operate.

[0043] Specifically, please refer to Figure 5 In this embodiment, the air outlet 202 of the airflow channel 2b is located on the side of the clamping part 2 away from the rotation axis X in the third direction. Since the rotation axis X extends along the first direction and is located in the upper region of the clamping part 2 in the third direction (near the top of the device), the "side away from the rotation axis X" in the third direction corresponds to the lower end of the clamping part 2, i.e., the free end region. This free end is the part of the clamping part 2 that is not fixed and can swing freely. In the normal use posture, it is located below the device and is also the position where the hair strand passes through the clamping space 2a.

[0044] The air outlet 202 is located near the free end edge of the clamping surface 21 in the third direction, typically near the lower edge of the clamping surface 21, and faces the outlet direction of the clamping space 2a. Here, "the outlet direction of the clamping space 2a" refers to the downward direction of the third direction, which is consistent with the natural downward direction of the hair strand. After the airflow is discharged from here, it directly acts on the hair strand that has just left the clamping area to achieve efficient styling.

[0045] By opening the air outlet 202 of the airflow channel 2b on the side of the clamping part 2 away from the rotation axis X and adjacent to the free end edge of the clamping surface 21, the exhaust airflow is directed directly toward the outlet direction of the clamping space 2a (i.e. the direction of hair strand drooping), accurately covering the styling area and achieving high styling efficiency.

[0046] Specifically, in order to generate a stable, unidirectional closed-direction torque when the airflow flows inside the clamping part 2, please refer to... Figures 5 to 8 In this embodiment, the air inlet 201 and the air outlet 202 of the airflow channel 2b are both located below the rotation axis X in the third direction. Compared with the air inlet 201, the air outlet 202 is located further away from the rotation axis X and closer to the free end of the clamping surface 21 in the third direction.

[0047] As previously stated, each of the pair of clamping parts 2 is rotatably mounted on the main body 1 about a rotation axis X extending in a first direction. The rotation axis X is located in the upper region of the clamping part 2 in the third direction, and in the second direction, it is located on the side of the clamping surface 21 away from the clamping space 2a. This arrangement creates a lever arm between the clamping surface 21 and the rotation axis X in the second direction, facilitating user operation for opening and closing. Simultaneously, in the third direction, the free end of the rotation axis X away from the clamping surface 21 leaves sufficient space in the lower region for arranging the airflow channel 2b and the air outlet.

[0048] Based on this, the air inlet 201 and air outlet 202 of the airflow channel 2b are both located below the rotation axis X in the third direction, that is, they are on the same side (lower side) of the rotation axis X. Specifically, the air inlet 201 is positioned close to the rotation axis X in the third direction, while the air outlet 202 is positioned further away from the rotation axis X in the third direction than the air inlet 201, and is located near the free edge of the clamping surface 21. This arrangement allows the airflow channel 2b to extend from top to bottom along the third direction, forming a flow path of a certain length.

[0049] During operation, the air source supplies air to the air inlet 201 of the airflow channel 2b. After the airflow enters the clamping part 2, it flows downward along the channel and is finally discharged from the air outlet 202 toward the outlet direction of the clamping space 2a (i.e., the downward direction of the third direction). It directly acts on the hair strand located downstream of the clamping space 2a to complete styling functions such as drying, curling or setting.

[0050] The key is that, during the flow of air within the channel, a distributed pressure is applied to the inner wall of the clamping part 2. Because the inlet end 201 is close to the rotation axis X and the outlet end 202 is far from the rotation axis X, a high dynamic or static pressure zone is formed in the lower part of the channel (especially near the outlet end 202). This pressure acts on the inner wall of the clamping part 2, and because the point of application is far from the rotation axis X, a lever arm is generated. The resulting resultant torque direction is uniquely set to drive the clamping part 2 to rotate around the rotation axis X towards the clamping space 2a, thus closing the two clamping surfaces 21 towards each other along the second direction.

[0051] Specifically, the left clamping part 2, under the influence of airflow torque, deflects counterclockwise around its rotation axis X; the right clamping part 2, under the influence of airflow torque, deflects clockwise around its rotation axis X. The clamping surfaces 21 on both sides always move towards each other, preventing any tendency to open in the opposite direction due to airflow impact. This closing tendency, combined with the static reset force provided by the elastic reset member 3, automatically enhances the clamping force during the airflow styling process, making it suitable for handling wet hair, coarse hair, or high-speed airflow scenarios.

[0052] It should be noted that the cross-sectional shape, inner wall curvature, and outlet angle of the airflow channel 2b can be optimized according to the actual air volume and clamping requirements. For example, a tapered section can be used to increase the flow velocity, or a guide surface can be set to guide the pressure distribution. However, regardless of the specific structural changes, as long as the inlet end 201 and the outlet end 202 are both located below the rotation axis X in the third direction, and the outlet end 202 is farther away from the rotation axis X than the inlet end 201, it can be ensured that the airflow torque direction is consistent and points towards the closed state.

[0053] By arranging both the air inlet 201 and the air outlet 202 of the airflow channel 2b below the rotation axis X in the third direction, and making the air outlet 202 further away from the rotation axis X and closer to the free end of the clamping surface 21, the airflow can generate a stable and unidirectional closed-direction torque when flowing in the channel. This torque, in conjunction with the elastic reset member 3, can improve the clamping stability and prevent hair strand slippage. At the same time, the airflow still acts efficiently on the downstream hair strand to complete the styling. The structure is compact and requires no additional driving components.

[0054] Further, please refer to Figures 7 to 8 In this embodiment, the main body 1 has an air inlet a1 at one end in the first direction, and the air inlet a1 is connected to a main air duct a extending in the first direction. The end of the main air duct a is provided with a diversion structure 11, which includes two guide slopes 111, respectively facing the air inlet ends 201 of the two clamping parts 2. The air inlet ends 201 of each clamping part 2 are located on both sides of the main body 1 in the second direction, and are respectively arranged opposite to a guide slope 111 to receive the airflow guided by the guide slope 111.

[0055] The main body 1 has its main air duct a along the first direction overlapping with the holding part, which facilitates connection to a fan or external air source, and the airflow flows horizontally along the main air duct a.

[0056] At the end of the main air duct a (i.e., the far end in the first direction), a flow-dividing structure 11 is provided. This flow-dividing structure 11 is triangular or wedge-shaped, with its front end facing the incoming flow and two guide slopes 111 formed on each side. The two guide slopes 111 are respectively positioned towards the air inlet ends 201 of the two clamping parts 2. Since the two clamping parts 2 are located on both sides of the main body 1 in the second direction, their air inlet ends 201 are also correspondingly located on both sides in the second direction.

[0057] When the airflow enters the main duct a along the first direction and reaches the end, without the diversion structure 11, it will directly impact the end wall, generating eddies, vibrations, and significant wind noise. However, by setting the diversion structure 11, the airflow is smoothly divided into two streams by two guide ramps 111, which turn to the second direction and enter the air inlet 201 of the corresponding clamping part 2. This avoids sudden stagnation or reflection of the airflow, reduces noise, and improves wind energy utilization.

[0058] In addition, since the two guide slopes 111 are symmetrically arranged, the airflow can be evenly distributed to the clamping parts 2 on both sides, avoiding asymmetrical clamping force due to pressure differences.

[0059] Of course, the specific shape of the diversion structure 11 is not limited to a triangle; it can also adopt a circular arc transition, a polyhedron, or other streamlined structures. As long as it can effectively guide the airflow along the first direction to the air inlet ends 201 of the two clamping parts 2 in the second direction at the end of the main air duct a, the purpose of this invention can be achieved.

[0060] Thus, by setting a diversion structure 11 with two guide slopes 111 at the end of the main air duct a, the noise and energy loss caused by the direct impact of airflow on the end wall can be avoided; at the same time, the mainstream airflow along the first direction is smoothly distributed to the two clamping parts 2 in the second direction, so that the air supply is symmetrical and stable.

[0061] Furthermore, to reduce airflow leakage between the clamping part 2 and the main body 1 due to assembly tolerances or thermal deformation, please refer to... Figure 6 and Figure 10 In this embodiment, the air inlet end 201 of the airflow channel 2b has an end face that fits against the corresponding surface of the main body 1. The main body 1 has a wind-blocking rib 12 protruding in the area between the two clamping parts 2, and the wind-blocking rib 12 is located outside the assembly gap between the end face and the main body 1.

[0062] Understandably, in the assembled state, the end face fits against the corresponding mating surface on the main body 1, forming the main interface for airflow to enter the airflow channel 2b of the clamping part 2 from the diversion channel of the main body 1. Due to manufacturing tolerances, differences in thermal expansion, or the requirements of movable connections, a small assembly gap inevitably exists between these mating surfaces. Therefore, some airflow may leak outward from this assembly gap, not only causing airflow loss but also potentially interfering with the movement of the clamping part 2, generating whistling noise, or even blowing towards the user's hand, affecting the user experience.

[0063] To this end, a windbreak rib 12 is provided in the area between the two clamping parts 2 of the main body 1. The windbreak rib 12 is arranged on the outside of the gap, that is, on the downstream side of the airflow possible escape path, forming a windbreak structure. When a small amount of airflow attempts to overflow from the gap between the air inlet end 201 and the main body 1, it will be blocked by the windbreak rib 12 and redirected back to the main channel or diffused along the surface of the main body 1, thereby suppressing leakage.

[0064] The wind deflector 12 can be a protruding structure integrally formed on the inner wall of the main body 1, and its height, width, and contour can be adjusted according to the gap position and expected wind pressure. For example, the wind deflector 12 can be arc-shaped, rectangular, or stepped, with a smooth surface to reduce eddies. In a preferred embodiment, the wind deflectors 12 corresponding to the left and right clamping parts 2 are symmetrically arranged to ensure balanced airflow distribution.

[0065] By setting a wind-blocking rib 12 on the main body 1 located outside the assembly gap, the airflow can be blocked from escaping outward from the gap between the air inlet end 201 of the clamping part 2 and the main body 1; this avoids airflow loss and noise problems, eliminates the need for a high-precision sealing structure, maintains the freedom of movement of the clamping part 2, and results in a simple overall structure and low cost.

[0066] As mentioned above, the main body 1 has an air inlet a1 at one end in the first direction. The air inlet a1 is connected to the main air duct a extending in the first direction. The airflow flows through the main air duct a to the end of the diversion structure 11, and is guided by two guide slopes 111 to the air inlet end 201 of the clamping parts 2 on both sides.

[0067] Since the airflow at the fan outlet usually has a high speed and uneven speed distribution, if it directly enters the main air duct a, it is easy to form vortices, pulsations or local high-speed zones in the air duct, which not only increases wind noise, but may also cause uneven flow distribution and affect the airflow symmetry of the clamping parts 2 on both sides.

[0068] For this purpose, please refer to Figure 11 A grille 13 is installed inside the main air duct a. The grille 13 can be composed of multiple parallel or intersecting ribs, forming a mesh-like, honeycomb-like, or porous array structure. The grille 13 can be a raised structure integrally formed on the inner wall of the main air duct a, or it can be an independent insert.

[0069] The grille 13 is located in the middle section of the main air duct a or near the air inlet a1. When high-speed airflow passes through, the grille 13 breaks large-scale vortices into smaller-scale disturbances, making the velocity field more uniform and reducing operating noise. In addition, the grille 13 also acts as a filter, preventing larger hair debris or foreign objects from entering the downstream diversion area and avoiding blockage of the airflow channel 2b within the clamping part 2. The structure is simple, easy to manufacture, and does not affect the overall layout of the main body 1.

[0070] Specifically, in this embodiment, the main body 1 has two mounting cavities b spaced apart in the second direction, and each of the two mounting cavities b has an opening on one side facing each other. A pair of clamping parts 2 are respectively installed in the two mounting cavities b, and when the two clamping surfaces 21 are in the initial clamping state, the air outlet 202 is located outside the opening.

[0071] Specifically, please refer to Figures 9 to 10 The root of each clamping part 2 is connected to the inner wall of the mounting cavity b via a rotating shaft. The rotating shaft extends in the first direction, allowing the clamping part 2 to swing about the axis in the second direction. An elastic reset member 3 (such as a torsion spring) is provided between the clamping part 2 and the mounting cavity b, so that the clamping surfaces 21 maintain an initial clamping state of mutual contact when no external force is applied.

[0072] The key point is that when the two clamping surfaces 21 are in the initial clamping state, the air outlet 202 on the clamping part 2 is located outside the opening of the corresponding mounting cavity b, that is, exposed in or downstream of the clamping space 2a. This arrangement allows the airflow discharged from the air outlet 202 to act unobstructed on the hair strand located in the clamping space 2a or the part that has just left the clamping area, avoiding airflow attenuation due to obstruction by the cavity wall of the main body 1.

[0073] Furthermore, housing the clamping part 2 entirely within the mounting cavity b protects moving components such as the rotating shaft and the elastic reset member 3 from external dust, hair, or user contact. The inner wall of the mounting cavity b also serves as a limiting surface for the swinging of the clamping part 2, preventing excessive opening.

[0074] Of course, the specific shape of the mounting cavity b can be adapted to the contour of the clamping part 2, for example, by adopting a U-shaped, C-shaped, or semi-closed structure. The size of the opening is slightly larger than the width of the clamping surface 21 to ensure sufficient opening and closing stroke while maintaining structural compactness. This specification does not limit the specific form of the mounting cavity b, as long as it can be spaced apart and relatively open in the second direction, and accommodate the clamping part 2 so that its air outlet end 202 is exposed in the closed state.

[0075] By providing two mounting cavities b with openings spaced apart and opposite each other in the second direction within the main body 1, and installing the clamping parts 2 in them respectively, the clamping parts 2 can provide more reliable support and movement guidance; at the same time, it can ensure that the air outlet 202 is located outside the opening in the initial clamping state, so that the airflow can directly act on the hair bundle, improving styling efficiency; in addition, the mounting cavities b can also protect the internal mechanical structure, preventing foreign objects from entering and accidental contact, and the whole machine has a compact structure.

[0076] Furthermore, to reduce heat loss from hot airflow and isolate the high-temperature area from the user's grip area, thereby improving safety, please refer to [link to relevant documentation]. Figures 7 to 8 In this embodiment, the main body 1 includes an inner shell 101 and an outer shell 102 sleeved around the inner shell 101. The inner shell 101 has two mounting cavities b and an opening on the side facing the clamping space 2a. The outer shell 102 covers the outer peripheral area of ​​the inner shell 101 away from the clamping space 2a and forms a heat-insulating cavity c between the outer shell 102 and the inner shell 101.

[0077] As previously stated, the main body 1 has two mounting cavities b spaced apart in the second direction, which are used to accommodate a pair of clamping parts 2 respectively, and an opening is formed on the side facing the clamping space 2a, so that the clamping surface 21 and the air outlet 202 can be exposed to the shaping area in the initial clamping state. Based on this, the main body 1 adopts a double shell structure, including an inner shell 101 and an outer shell 102 sleeved around the inner shell 101.

[0078] The inner shell 101, as the core component for support and functional integration, has two mounting cavities b directly formed inside. Each mounting cavity b is arranged opposite to the other along the second direction, with its side facing each other remaining open. The clamping part 2 is pivotally mounted in the corresponding mounting cavity b via the rotation axis X, with its clamping surface 21 extending towards the opening direction, while the air outlet 202 is located near the free end of the clamping surface 21, outside the opening in the closed state, ensuring that the discharged hot airflow can act on the hair strand without obstruction.

[0079] The outer shell 102 completely covers the outer periphery of the inner shell 101 away from the clamping space 2a, that is, it covers the top, bottom, and sides of the inner shell 101 away from the clamping space 2a, but does not extend to the opening area of ​​the inner shell 101 facing the clamping space 2a, thereby avoiding interference with the opening and closing movement of the clamping part 2 and the normal discharge of airflow from the outlet end 202. A certain distance is maintained between the inner shell 101 and the outer shell 102 to form a heat-insulating cavity c surrounding the core area of ​​the main body 1. The heat-insulating cavity c can be a closed air layer, or it can be filled with a heat-insulating medium with a low thermal conductivity as needed.

[0080] In terms of material selection, the clamping part 2 can be made of metal or metal-based composite material with excellent thermal conductivity, such as aluminum alloy or engineering plastic with thermally conductive coating on the surface, so as to efficiently absorb and conduct heat from the hot airflow in the airflow channel 2b and assist in achieving rapid heat setting.

[0081] The inner shell 101 and the outer shell 102 are preferably made of high-temperature resistant insulating materials with low thermal conductivity, such as engineering plastics. Of course, the inner shell 101 can be made of high-temperature resistant insulating materials, while the outer shell 102 can be used as an appearance part, using materials that are easy to shape or enhance the quality and texture.

[0082] Furthermore, the gap between the inner shell 101 and the outer shell 102 can isolate vibrations and noise generated by the internal fan, heating element, or airflow pulsation to a certain extent, improving the overall operational stability and user comfort. The inner shell 101 and the outer shell 102 can be fixedly connected by means of clips, screws, or heat fusion. The distance between them can be determined comprehensively based on the thermal insulation performance, structural strength, and product thickness requirements, ensuring both thermal insulation effect and overall compactness.

[0083] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A hair styling device (100), characterized in that, include: Main body (1); A pair of clamping portions (2) are movably mounted to the main body (1), each clamping portion (2) extending in a first direction and having a clamping surface (21) facing the other clamping portion (2), forming a clamping space (2a) for accommodating a hair bundle between the pair of clamping portions (2), and the two clamping surfaces (21) being configured to move closer to or further away from each other in a second direction; and, The elastic reset member (3) is used to keep the two clamping surfaces (21) in an initial clamping state that abuts against each other; The clamping part (2) is provided with an airflow channel (2b), which has an air inlet (201) and an air outlet (202). The air inlet (201) is used to connect to an air source, and the air outlet (202) is located on the clamping part (2). The airflow discharged from the air outlet (202) is used to style the hair strand located downstream of the clamping space (2a). The airflow channel (2b) is configured to apply a force to the clamping part (2) toward another clamping part (2) when the airflow flows through it.

2. The hair styling device (100) as described in claim 1, characterized in that, The pair of clamping parts (2) are each rotatably mounted on the main body (1) about a rotation axis (X) extending along the first direction. The rotation axis (X) is located on the side of the clamping surface (21) away from the clamping space (2a) in the second direction, and on the side of the clamping part (2) away from the free end of the clamping surface (21) in the third direction.

3. The hair styling device (100) as described in claim 2, characterized in that, The air outlet (202) of the airflow channel (2b) is located on the side of the clamping part (2) away from the rotation axis (X) in the third direction, and adjacent to the free end edge of the clamping surface (21) in the third direction, so that the airflow discharged from the air outlet (202) of the airflow channel (2b) is directed toward the outlet direction of the clamping space (2a).

4. The hair styling device (100) as described in claim 3, characterized in that, The air inlet (201) and outlet (202) of the airflow channel (2b) are both located below the rotation axis (X) in the third direction. The outlet (202) is located further away from the rotation axis (X) and closer to the free end of the clamping surface (21) in the third direction than the inlet (201).

5. The hair styling device (100) as described in claim 1, characterized in that, The main body (1) has an air inlet (a1) at one end in the first direction, and the air inlet (a1) is connected to a main air duct (a) extending in the first direction. The main air duct (a) is provided with a diversion structure (11) at its end. The diversion structure (11) includes two guide slopes (111) which are respectively directed toward the air inlet ends (201) of the two clamping parts (2). The air inlet end (201) of each clamping part (2) is located on both sides of the main body (1) in the second direction and is respectively arranged opposite to a guide slope (111) to receive the airflow guided by the guide slope (111).

6. The hair styling device (100) as described in claim 5, characterized in that, The air inlet end (201) of the airflow channel (2b) has an end face that is in contact with the corresponding surface of the main body (1); The main body (1) has a windproof rib (12) protruding in the area between the two clamping parts (2), and the windproof rib (12) is located outside the assembly gap between the end face and the main body (1).

7. The hair styling device (100) as described in claim 5, characterized in that, A grille (13) is installed inside the main air duct (a).

8. The hair styling device (100) as claimed in claim 1, characterized in that, The main body (1) has two mounting cavities (b) spaced apart in the second direction, and each of the two mounting cavities (b) has an opening on one side that is opposite to the other. The pair of clamping parts (2) are respectively installed in the two mounting cavities (b). When the two clamping surfaces (21) are in the initial clamping state, the air outlet (202) is located outside the opening.

9. The hair styling device (100) as described in claim 8, characterized in that, The main body (1) includes an inner shell (101) and an outer shell (102) sleeved around the inner shell (101). The inner shell (101) has the two mounting cavities (b) and the opening is formed on the side facing the clamping space (2a); The outer shell (102) covers the outer peripheral area of ​​the inner shell (101) away from the clamping space (2a) and forms a heat-insulating cavity (c) between the outer shell (102) and the inner shell (101).

10. The hair styling device (100) as described in any one of claims 1 to 9, characterized in that, The elastic reset element (3) includes a torsion spring.

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