Air outlet reversing device of hair straightening comb and hair straightening comb
By incorporating a movable component within the hair straightener to automatically adjust the airflow direction using gravity, the problem of a fixed airflow path in traditional hair straighteners is solved. This achieves synchronization between airflow and combing action, reducing the risk of hair damage and enhancing the user experience.
Patent Information
- Application Number
- CN202423320131.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional straighteners have a fixed airflow path that cannot be adjusted according to the user's combing movements. This can cause reverse airflow, affecting drying or styling results and increasing the risk of hair breakage or split ends.
Design an airflow reversing device for a straightening comb. By setting a movable part in the air distribution chamber, the left or right air duct is automatically blocked by gravity, and the airflow path is automatically optimized according to the combing action.
The airflow direction always coordinates with the combing motion to avoid extra pulling and pressure, reduce the risk of hair breakage or split ends, provide even airflow distribution, reduce overheated areas, enhance the hair care experience, and simplify the mechanical structure.
Smart Images

Figure CN223913639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hair styling equipment technology, and in particular to an air outlet reversing device and a hair straightener. Background Technology
[0002] In the modern personal care market, hair straighteners are widely favored for their practicality and convenience. These products typically integrate heating and blow-drying functions, aiming to achieve quick drying and smoothing of hair through the combined action of heat and airflow. However, traditional hair straighteners have some design shortcomings.
[0003] Traditional straighteners mostly use a fixed airflow path: air is drawn in through a fixed inlet, heated, and then blown onto the hair through one or more fixed outlets. This static airflow cannot adjust to the user's combing movements, causing the airflow to potentially flow in the opposite direction of the comb's movement, thus affecting the drying or styling results. Furthermore, when the airflow direction is inconsistent with the combing direction, it may increase the risk of hair breakage or split ends, which is detrimental to hair health in the long run.
[0004] This utility model is based on the above-mentioned circumstances. Utility Model Content
[0005] This invention overcomes the shortcomings of the prior art and provides an air outlet reversing device and a straightening comb that allows the movable parts to move under gravity to block the left or right air duct when the comb body is tilted and the hair is combed.
[0006] This utility model is achieved through the following technical solution:
[0007] A straightening comb's airflow reversing device includes a comb body with an air inlet and an air outlet. The air inlet has an air inlet, and the comb body is divided into a left air duct and a right air duct. The air outlet has a first comb tooth, a left air outlet communicating with the left air duct, and a right air outlet communicating with the right air duct. The comb body also has an air distribution chamber communicating with the air inlet, the left air duct, and the right air duct. The air distribution chamber has a movable component that can block the left or right air duct by gravity when the comb body is tilted.
[0008] As described above, the airflow diversion device for a hair straightener includes a swing wheel as the movable component, a mounting bracket inside the air inlet, a rotating shaft arranged along the airflow direction connected to the mounting bracket, and one side of the swing wheel rotatably connected to the rotating shaft.
[0009] As described above, the airflow diversion device for a hair straightener includes a ball bearing, and the air inlet end is also provided with a limiting ring to restrict the ball bearing from rolling out of the air distribution chamber.
[0010] As described above, the air outlet reversing device of a hair straightener has an air distribution hood on the air outlet end, and the left and right air outlets are located on the air distribution hood. An air guide seat that can guide the air outlet is provided between the left and right air outlets.
[0011] As described above, the airflow diversion device for a straightening comb has a left hollow groove communicating with the left air duct and a right hollow groove communicating with the right air duct at the lower part of the air guide seat.
[0012] As described above, the airflow diversion device of a hair straightener has a plurality of second comb teeth on the top of the air guide seat.
[0013] As described above, the airflow diversion device for a hair straightener includes a comb head base, a housing fitted onto the outside of the comb head base, and a comb tooth base connected to the housing.
[0014] As described above, the air outlet reversing device of a hair straightener includes an air distribution cover clamped between the comb head seat and the comb teeth seat. The comb head seat is provided with an air outlet cavity and an annular slot surrounding the air outlet cavity. The air distribution cover is provided with a pin that is inserted into the annular slot. The air guide seat is connected to a partition plate that extends into the air outlet cavity to separate the left air channel and the right air channel.
[0015] As described above, the air outlet reversing device of a hair straightener has an air outlet channel on the comb tooth seat for the air guide seat to pass through. The air guide seat divides the air outlet channel into a left channel and a right channel. The left channel is connected to the left air outlet, and the right channel is connected to the right air outlet. The first comb tooth is disposed on the comb tooth seat and surrounds the air outlet channel.
[0016] A hair straightener, wherein the hair straightener is provided with the airflow diversion device described above.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] This design incorporates a movable component within the air distribution chamber, allowing the airflow to automatically block the left or right duct based on the straightener's tilt angle and gravity. This eliminates the need for manual airflow adjustment during combing, as the airflow path is automatically optimized based on the comb's position and movement. Because the airflow direction always aligns with the user's combing motions, it avoids the additional pulling and pressure caused by reverse airflow, reducing the risk of breakage or split ends. The more even and directional airflow distribution also minimizes overheating areas, preventing damage from localized high temperatures and providing a gentler hair care experience. Utilizing gravity for airflow reversal simplifies the internal mechanical structure, reduces manufacturing costs and maintenance complexity, and allows users to enjoy the convenience of intelligent airflow control without needing to learn complex operating procedures, thus enhancing the user experience. Attached Figure Description
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present invention;
[0022] Figure 3 This is a cross-sectional schematic diagram of another embodiment of the present invention;
[0023] Figure 4 This is a cross-sectional view of the present invention. Figure 2 ;
[0024] Figure 5 This is an exploded view of the present invention;
[0025] Figure 6 This is a schematic diagram of the structure in which the moving part is a ball bearing;
[0026] Figure 7 This is a cross-sectional schematic diagram of the movable component being a ball bearing in this utility model. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] like Figures 1 to 7 The airflow reversing device of a straightening comb shown includes a comb body 1, which has an air inlet end 2 and an air outlet end 3. The air inlet end 2 has an air inlet 21. The comb body 1 is divided into a left air duct 41 and a right air duct 42. The air outlet end 3 has a first comb tooth 51, a left air outlet 411 communicating with the left air duct 41, and a right air outlet 421 communicating with the right air duct 42. The comb body 1 also has an air distribution chamber 43 communicating with the air inlet 21, the left air duct 41, and the right air duct 42. The air distribution chamber 43 has a movable part 6 that can be activated by gravity to block the left air duct 41 or the right air duct 42 when the comb body 1 is tilted. The air inlet end 2 has a plug 20 that can be inserted into the handle, and the plug 20 has a locking block 200 that can be fastened to the handle.
[0029] This design incorporates a movable component 6 within the air distribution chamber 43, which automatically blocks the left air duct 41 or right air duct 42 based on the straightener's tilt angle and gravity. This eliminates the need for manual airflow adjustment during combing, as the airflow path is automatically optimized based on the comb's position and movement. Because the airflow direction always aligns with the user's combing motions, it avoids the additional pulling and pressure on the hair caused by reverse airflow, reducing the risk of breakage or split ends. Simultaneously, the more even and directional airflow distribution reduces overheating areas, preventing hair damage from localized overheating and providing a gentler hair care experience. Utilizing gravity for airflow reversal simplifies the internal mechanical structure, reduces manufacturing costs and maintenance complexity, and allows users to enjoy the convenience of intelligent airflow control without needing to learn complex operating procedures, thus enhancing the user experience.
[0030] In one embodiment, the movable component 6 includes a swing wheel 61, and a mounting bracket 62 is provided inside the air inlet 21. A rotating shaft 63 arranged along the air inlet direction is connected to the mounting bracket 62, and one side of the swing wheel 61 is rotatably connected to the rotating shaft 63.
[0031] The oscillating wheel 61 is connected to the mounting bracket 62 via the pivot 63, enabling it to quickly respond to changes in the straightener's tilt angle, thus ensuring timely and accurate airflow reversal and keeping the airflow in sync with the user's combing movements. The pivot 63 provides a stable rotational support point, ensuring smooth and uninterrupted movement of the oscillating wheel 61 under gravity, thereby guaranteeing stable airflow control. The rotating connection reduces friction surfaces and lowers wear between components. Compared to traditional sliding or rolling contact methods, this significantly extends the service life of the moving part 6. The mounting bracket 62 can be connected to the inlet wall of the air inlet 21 via interference fit or other connection methods such as snap-fit.
[0032] In one embodiment, the movable component 6 includes a ball bearing 64, and the air inlet end 2 is also provided with a limiting ring 65 to prevent the ball bearing 64 from rolling out of the air distribution cavity 43. The limiting ring 65 can be installed by setting a groove on the inlet wall of the air inlet 21, or it can be fixed to the inlet wall of the air inlet 21 by other connection methods such as glue.
[0033] The 64 ball bearings respond quickly to changes in the tilt angle of the straightener under gravity, ensuring timely and accurate airflow direction adjustment. The design of the 64 ball bearings reduces frictional resistance, resulting in smoother movement and more precise airflow control. Compared to traditional sliding contact, the rolling contact significantly reduces wear between components, thus extending service life.
[0034] In one embodiment, an air distribution hood 7 is provided on the air outlet 3. The left air outlet 411 and the right air outlet 421 are provided on the air distribution hood 7. An air guide seat 71 for guiding the air outlet is provided between the left air outlet 411 and the right air outlet 421. The top of the air guide seat 71 is provided with several second comb teeth 52. The lower part of the air guide seat 71 is provided with a left hollow groove 711 communicating with the left air duct 41 and a right hollow groove 712 communicating with the right air duct 42.
[0035] The left and right hollow slots 711 and 712 effectively disperse the concentrated airflow from the duct, allowing it to be distributed more evenly across the hair. This helps prevent damage caused by localized overheating or excessively concentrated airflow, while also improving the evenness of drying and styling. The dispersed airflow can contact the hair more gently, reducing the risk of pulling and breakage caused by direct blow-drying, thus protecting hair health. Furthermore, the evenly distributed airflow helps maintain the hair's moisture balance, reducing frizz and enhancing the conditioning effect.
[0036] In one embodiment, the comb body 1 includes a comb base 11, a housing 12 sleeved on the outside of the comb base 11, and a comb tooth seat 13 connected to the housing 12. The modular design allows each part to be manufactured and tested independently, reducing production difficulty and cost. It also facilitates subsequent assembly and maintenance, improving overall production efficiency. The comb base 11, housing 12, and comb tooth seat 13 are fixed by threaded fasteners or other connection structures. The housing 12 has clearance holes 120 for the air distribution shroud 7 to pass through.
[0037] Furthermore, the air distribution cover 7 is clamped between the comb head seat 11 and the comb tooth seat 13. The comb head seat 11 is provided with an air outlet cavity 4 and an annular slot 40 surrounding the air outlet cavity 4. The air distribution cover 7 is provided with a pin 72 that is inserted into the annular slot 40. The air guide seat 71 is connected to a partition plate 73 that extends into the air outlet cavity 4 to separate the left air duct 41 and the right air duct 42. The air distribution cover 7, the air guide seat 71, and the partition plate 73 are all integrated into one structure.
[0038] Furthermore, the comb base 13 is provided with an air outlet channel 131 through which the air guide seat 71 passes. The air guide seat 71 divides the air outlet channel 131 into a left channel and a right channel. The left channel is connected to the left air outlet 411, and the right channel is connected to the right air outlet 421. The first comb tooth 51 is provided on the comb base 13 and surrounds the air outlet channel 131.
[0039] In one embodiment, the outer wall of the air guide seat 71 is an inclined surface, and the left and right channels are inclined channels with their upper ends close together, so that the air outlet direction always matches the user's combing action, avoiding the extra pulling and pressure on the hair caused by the reverse airflow, and reducing the wind that causes hair breakage or split ends.
[0040] In one embodiment, the outer wall of the air guide seat 71 is composed of a horizontal plate 710 and a vertical plate 7100, which are connected to form an L-shape. The vertical plates 7100 on both sides of the air guide seat 71 are inclined with their lower ends close together, and the edges at the connection between the horizontal plate 710 and the vertical plate 7100 are rounded. The rounded edges make the air guide seat 71 smoother during use, reducing the direct impact on the scalp and hair, and providing a gentler and more comfortable hair care experience. At the same time, it also helps to distribute heat evenly, avoiding local overheating and ensuring that the entire hair is heated evenly, further improving the hair care effect.
[0041] In one embodiment, the present invention also provides a hair straightener having the aforementioned airflow diversion device.
Claims
1. A hair straightening comb air outlet reversing device, characterized by: The utility model provides a hair comb, including the comb body (1), be equipped with the air inlet end (2) and the air outlet end (3) on the comb body (1), be equipped with the air inlet (21) on air inlet end (2), be equipped with left air channel (41) and right air channel (42) in the separation of comb body (1), be equipped with first comb tooth (51), left air outlet (411) with left air channel (41) communication and right air outlet (421) with right air channel (42) communication on air outlet end (3), still be equipped with with air inlet (21), left air channel (41) and right air channel (42) communication's air distribution chamber (43) in the comb body (1), be equipped with the movable element (6) in air distribution chamber (43), can act on the movable element (6) with the action of gravity and can block left air channel (41) or right air channel (42) when the comb body (1) is inclined.
2. A reversing air outlet device for a straightening comb according to claim 1, characterised in that: The movable element (6) includes a swing wheel (61), the air inlet (21) is provided with a mounting bracket (62), the mounting bracket (62) is connected with a rotating shaft (63) arranged in the air inlet direction, one side of the swing wheel (61) is rotatably connected to the rotating shaft (63).
3. A straightening comb air outlet reversing device according to claim 1, characterised in that: The movable element (6) includes a ball (64), the air inlet end (2) is further provided with a limiting ring (65) for limiting the ball (64) from rolling out of the air distribution chamber (43).
4. A hair straightening comb air outlet reversing device according to claim 2 or 3, characterised in that: The air outlet end (3) is provided with an air distribution cover (7), the left air outlet (411) and the right air outlet (421) are provided on the air distribution cover (7), and a wind guide seat (71) capable of guiding the air outlet is arranged between the left air outlet (411) and the right air outlet (421).
5. A hair straightening comb air outlet reversing device according to claim 4, characterised in that: The lower part of the wind guide seat (71) is provided with a left hollow groove (711) in communication with the left air channel (41) and a right hollow groove (712) in communication with the right air channel (42).
6. A hair straightening comb air outlet reversing device according to claim 4, wherein: The top of the wind guide seat (71) is provided with a plurality of second comb teeth (52).
7. A hair straightening comb air outlet reversing device according to claim 4, wherein: The comb body (1) includes a comb seat (11), an outer shell (12) sleeved outside the comb seat (11), and a comb tooth seat (13) connected to the outer shell (12).
8. A hair straightening comb air outlet reversing device according to claim 7, characterised in that: The air distribution cover (7) is clamped between the comb seat (11) and the comb tooth seat (13), the comb seat (11) is provided with an air outlet recess (4) and an annular insertion slot (40) surrounding the air outlet recess (4), and the air distribution cover (7) is provided with an insertion pin (72) inserted into the annular insertion slot (40); the wind guide seat (71) is connected with a partition plate (73) extending into the air outlet recess (4) to separate the left air channel (41) and the right air channel (42).
9. A hair straightening comb air outlet reversing device according to claim 8, characterised in that: The comb tooth seat (13) is provided with an air outlet channel (131) for the wind guide seat (71) to pass through, the wind guide seat (71) separates the air outlet channel (131) into a left channel and a right channel, the left channel is in communication with the left air outlet (411), the right channel is in communication with the right air outlet (421), the first comb tooth (51) is arranged on the comb tooth seat (13), and the first comb tooth (51) surrounds the air outlet channel (131).
10. A straightening comb, characterized by: The straight comb is provided with the air outlet reversing device according to any one of claims 1-9.