A hair curler with double air suction
Patent Information
- Application Number
- CN202522641653.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-12
AI Technical Summary
In existing technology, the number of air inlets on curling irons is limited, resulting in incomplete hair adhesion during the curling process, unnatural curls, and the inability to selectively switch air intake modes according to styling needs, thus limiting the user experience.
Design a curling iron with dual-sided suction. A ventilation tube is set on the main body of the curling iron, and a ventilation channel is set inside the ventilation tube. Multiple first and second air inlets are set in sequence along the circumference on the side wall. The rotation of the movable inner core realizes the switching between single-sided or dual-sided suction mode. The cooperation of the wind baffle and the limiting rib ensures the sealing and connection of the air inlets, thereby improving suction efficiency and stability.
It enables flexible switching between single-sided and double-sided suction modes on the curling iron, increasing airflow and improving the naturalness and volume of the curls, adapting to the styling needs of different users and enhancing the user experience.
Smart Images

Figure CN224924705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curling iron technology, and in particular to a curling iron with double-sided suction. Background Technology
[0002] Curling irons, as a common hair styling tool, typically use a heating structure to heat and style hair. As users' demands for diverse styling effects continue to increase, curling irons with suction functions have appeared on the market. By creating airflow through suction, the hair can be made to adhere more smoothly to the surface of the curling iron, improving the curling effect and reducing the difficulty of operation.
[0003] Existing suction-type curling irons generally only have an air intake on one side, and the air intake on one side is limited, resulting in incomplete hair adhesion during the curling process, unnatural curls, and the inability to selectively switch suction modes according to styling needs, thus limiting the user experience. Utility Model Content
[0004] The purpose of this invention is to provide a curling iron with dual-sided suction, which can switch between single-sided suction and dual-sided suction modes, making it highly adaptable and meeting the needs of different users.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a curling iron with dual-sided suction, comprising a curling iron body and a ventilation tube disposed thereon, wherein a ventilation channel is provided axially through the interior of the ventilation tube, and the end of the ventilation tube away from the curling iron body is closed; a plurality of first air inlets and a plurality of second air inlets are arranged adjacently in the circumferential direction on the side wall of the ventilation tube, wherein the opening directions of the first air inlets and the second air inlets are different; the ventilation tube includes a movable inner core rotatably disposed on the curling iron body, an inner sleeve sleeved on the outside of the movable inner core, and an outer sleeve sleeved on the outside of the inner sleeve, wherein the inner sleeve and the outer sleeve are fixed to the curling iron body; the movable inner core can rotate relative to the inner sleeve and the outer sleeve, and can selectively block the first air inlet or the second air inlet, or simultaneously open the first air inlet and the second air inlet, so as to realize the switching between single-sided suction and dual-sided suction.
[0006] By adopting the above technical solution, the movable inner core can rotate relative to the inner and outer sleeves, and the movable inner core can selectively block the first and second air inlets, forming two working modes: single-sided air intake or double-sided air intake, to meet different user needs.
[0007] The present invention is further configured such that: the outer sleeve includes a first baffle and a second baffle arranged sequentially adjacent to each other along the circumference, the end of the second baffle is spaced inside the end of the first baffle, and the first air intake and the second air intake are defined on both sides of the first baffle; the inner sleeve is provided with a connecting groove corresponding to the first air intake and the second air intake, and the first air intake and the second air intake are connected to the ventilation duct through the connecting groove.
[0008] By adopting the above technical solution, the outer sleeve forms a first air intake and a second air intake on both sides, which can effectively guide external air into the ventilation duct and improve the air intake efficiency. The connecting grooves on the inner sleeve correspond one-to-one with the air intakes to ensure smooth and reliable air intake.
[0009] The present invention is further configured such that: the movable inner core includes a windproof part, and an air inlet channel is provided between the windproof parts; when the movable inner core rotates to different positions, the windproof part can block the first air inlet or the second air inlet, or neither can be blocked.
[0010] By adopting the above technical solution, the movable inner core can not only guide air into the ventilation duct through the air inlet channel, but also block the first air inlet or the second air inlet to achieve switching between different air intake modes.
[0011] The present invention is further configured such that: the windproof part is provided with a first limiting rib and a second limiting rib, the first limiting rib is provided in the middle of the windproof part, and the second limiting rib is provided on both sides of the air inlet channel; the inner sleeve is provided with a limiting groove, when the first limiting rib is engaged with the limiting groove, the first air inlet and the second air inlet are both connected to the air inlet channel; when the second limiting rib is engaged with the limiting groove, the first air inlet or the second air inlet is blocked by the windproof part.
[0012] By adopting the above technical solution, when the first limiting rib is inserted into the limiting groove, both the first and second air inlets are connected to the air inlet channel, realizing a dual-sided air intake mode; when the second limiting rib is inserted into the limiting groove, a single-sided air intake mode is realized. This structure improves the stability of air intake mode switching and allows users to clearly perceive the switching position of the air intake mode, making the operation more convenient and reliable.
[0013] The present invention is further configured such that: both ends of the connecting groove are provided with air guiding arc sections, and the air guiding arc sections extend in an arc shape from the outer wall of the inner sleeve to the inner side.
[0014] By adopting the above technical solution, after setting the air guide arc at both ends of the connecting groove, the flow resistance when the air enters the connecting groove is significantly reduced, which not only improves the suction efficiency, but also reduces the noise brought by the airflow, making the curling process quieter and more comfortable.
[0015] The present invention is further configured such that: a third limiting rib is provided on the inner wall of the second baffle, and a corresponding slot is provided on the outer wall of the inner sleeve, and the third limiting rib engages with the slot.
[0016] By adopting the above technical solution, the third limiting rib on the inner wall of the second baffle is engaged with the groove on the outer wall of the inner sleeve, so that the outer sleeve is fixed relative to the inner sleeve, making it less prone to loosening and improving structural stability.
[0017] The present invention is further configured such that: a closed cover is provided at one end of the ventilation tube away from the main body of the curling iron, a positioning protrusion is provided on the closed cover, a positioning sleeve is provided on the movable inner core, and the positioning protrusion and the positioning sleeve are inserted and engaged.
[0018] By adopting the above technical solution, by setting a closed cap at the end of the ventilation tube away from the main body of the curling iron, and by inserting the positioning protrusion into the positioning sleeve on the movable inner core, the end of the ventilation tube is sealed more reliably, avoiding leakage of hot air or airflow.
[0019] The present invention is further configured such that: the positioning sleeve is provided with a positioning groove, the positioning protrusion is provided with a positioning protrusion, and the positioning protrusion engages with the positioning groove.
[0020] By adopting the above technical solution, the positioning groove on the positioning sleeve and the positioning protrusion on the positioning protrusion engage and cooperate, so that the closed cover can drive the movable inner core to rotate. Users can switch the suction mode by rotating the closed cover, which improves the convenience of operation.
[0021] The present invention is further configured such that: the outer wall of the inner sleeve is provided with a plurality of sealing ribs, the sealing ribs abutting against the outer sleeve.
[0022] By adopting the above technical solution, the sealing rib abuts against the inner wall of the outer sleeve, forming an effective sealing structure, preventing external air from entering between the inner and outer sleeves, reducing suction loss, and improving suction efficiency.
[0023] The present invention is further configured such that: the bottom of the movable inner core is provided with a guide protrusion, the main body of the curling iron is provided with a guide groove, and the guide protrusion is movably disposed in the guide groove.
[0024] By adopting the above technical solution, the guide protrusion at the bottom of the movable inner core cooperates with the guide groove on the main body of the curling iron to provide guidance and limit the rotation of the movable inner core, making its rotation path more stable and avoiding deviation or tilting.
[0025] In summary, this utility model has the following beneficial effects: 1. The rotating inner core allows for selective blocking of the first and second air inlets, enabling the curling iron to switch between single-sided and double-sided air intake modes. Users can freely choose according to their curling angle, hair volume, and styling needs, making it more adaptable.
[0026] 2. Dual-sided suction can draw in air from both sides simultaneously, increasing airflow and making the airflow into the ventilation duct more stable and uniform. This helps to create a consistent temperature difference, resulting in a more natural, voluminous, and faster curling effect.
[0027] 3. In single-sided suction mode, the air intake direction is concentrated, which is conducive to targeted airflow when close to the scalp, in localized styling, or at angles that are difficult to operate, making the curl shaping more precise. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of this utility model.
[0029] Figure 2 This is a cross-sectional view of the present invention.
[0030] Figure 3 This is a top sectional view of the ventilation duct of this utility model.
[0031] Figure 4 This is a three-dimensional sectional view of the ventilation duct of this utility model.
[0032] Figure 5 This is a schematic diagram of the structure of the movable inner core of this utility model.
[0033] Figure 6 This is a schematic diagram of the inner sleeve of this utility model.
[0034] Figure 7 This is a schematic diagram of the outer sleeve of this utility model.
[0035] Figure 8 This is a schematic diagram of the structure of the sealing cover of this utility model.
[0036] In the diagram: 1. Curling iron body; 11. Guide groove; 2. Ventilation pipe; 21. Movable inner core; 211. Windproof part; 212. Air inlet channel; 213. First limiting rib; 214. Second limiting rib; 215. Positioning sleeve; 216. Positioning groove; 217. Guide protrusion; 218. Ventilation duct; 22. Inner sleeve; 221. Connecting groove; 222. Limiting groove; 223. Air guide arc; 224. Sealing rib; 225. Slot; 23. Outer sleeve; 231. First baffle; 232. Second baffle; 2321. Third limiting rib; 233. First air intake; 234. Second air intake; 3. Sealing cover; 31. Positioning protrusion; 32. Positioning protrusion. Detailed Implementation
[0037] The present invention will be further described below with reference to the accompanying drawings.
[0038] like Figures 1 to 3 As shown, this utility model provides a double-sided suction curling iron, including a curling iron body 1 and a ventilation pipe 2 disposed at the front end of the curling iron body 1. The ventilation pipe 2 forms a ventilation channel 218 through which air flows axially. The end of the ventilation pipe 2 away from the curling iron body 1 is closed, thereby forming a stable airflow path within the ventilation channel 218. Multiple sets of first air intakes 233 and second air intakes 234 are sequentially and adjacently arranged on the side wall of the ventilation pipe 2 in the circumferential direction. The opening directions of the first air intakes 233 and the second air intakes 234 are different. When the curling iron is in use, it can select to draw in air from the left or right side according to the user's styling direction, or draw in air from both sides simultaneously to achieve a different desired effect. To provide a different airflow experience, the ventilation tube 2 consists of a three-layer structure comprising a movable inner core 21, an inner sleeve 22, and an outer sleeve 23. The movable inner core 21 is rotatably mounted on the main body 1 of the curling iron. The inner sleeve 22 is fitted over the movable inner core 21, and the outer sleeve 23 is further fitted over the inner sleeve 22. Both the inner sleeve 22 and the outer sleeve 23 are fixed to the main body 1 of the curling iron. The movable inner core 21 can rotate relative to the inner sleeve 22 and the outer sleeve 23. By rotating the movable inner core 21, the first air intake 233 or the second air intake 234 can be selectively blocked, or the first air intake 233 and the second air intake 234 can be opened simultaneously, thereby achieving the switching between single-sided air intake and double-sided air intake.
[0039] like Figures 3 to 5 As shown, the outer sleeve 23 is provided with a first baffle 231 and a second baffle 232 adjacent to each other along the circumference. The end of the second baffle 232 is spaced inside the end of the first baffle 231, and a first air intake 233 and a second air intake 234 are defined on both sides of the first baffle 231. The end of the first baffle 231 has a bevel, and there is an angle between the axial extension lines of the two bevels of the first baffle 231, so that the first air intake 233 and the second air intake 234 face different directions. The inner sleeve 22 is provided with a connecting groove 221, so that the air intake can be connected to the ventilation duct 218 through the connecting groove 221, so that the air can smoothly enter the ventilation duct 218. In order to further optimize the airflow, the two ends of the connecting groove 221 are provided with air guide arcs 223. The air guide arcs 223 extend in an arc shape from the outer wall of the inner sleeve 22 to the inner side, so that the airflow entering the connecting groove 221 is smoother, which can reduce eddies and resistance, and help increase the suction efficiency and reduce wind noise.
[0040] like Figures 3 to 5As shown, the active inner core 21 includes multiple wind-blocking portions 211 distributed circumferentially, with air inlet channels 212 formed between the wind-blocking portions 211. Each first air intake 233 and second air intake 234 corresponds to a connecting slot 221. When the wind-blocking portion 211 completely blocks the connecting slot 221 corresponding to the first air intake 233, the connecting slot 221 corresponding to the second air intake 234 connects with the air inlet channel 212, thereby achieving unilateral air intake of the second air intake 234. When the wind-blocking portion 211 completely blocks the connecting slot 221 corresponding to the second air intake 234, the connecting slot 221 corresponding to the first air intake 233 connects with the air inlet channel 212, thereby achieving unilateral air intake of the first air intake 233. When the wind-blocking portion 211 partially blocks the connecting slot 221, both the first air intake 233 and the second air intake 234 connect with the air inlet channel 212 through their corresponding connecting slots 221, thereby achieving bidirectional air intake.
[0041] In addition, the inner wall of the connecting groove 221 has an upwardly extending protrusion, and the two sides of the protrusion form a guide slope, which makes the air passing through the guide arc 223 more concentrated and avoids the airflow from dissipating.
[0042] When the air inlet channel 212 of the movable inner core 21 is connected to the air intake, air can directly enter the ventilation channel 218; while when the wind baffle 211 is located at the air intake, it blocks the air intake, thereby controlling the airflow path.
[0043] like Figures 3 to 5 As shown, the movable inner core 21 is provided with a first limiting rib 213 and a second limiting rib 214. The first limiting rib 213 is located in the middle of the windproof part 211, and the second limiting rib 214 is located on both sides of the air inlet channel 212. The inner sleeve 22 is provided with a limiting groove 222 that cooperates with it. When the first limiting rib 213 is engaged with the limiting groove 222, the first air intake 233 and the second air intake 234 are both connected to the air inlet channel 212, which can form a double-sided air intake mode. When the second limiting rib 214 is engaged with the limiting groove 222, the windproof part 211 of the movable inner core 21 blocks one set of air intakes, thus forming a single-sided air intake mode. This structure provides clear positioning feedback, so that users can clearly perceive the switching position of the air intake mode during operation, improving the convenience and reliability of use.
[0044] like Figures 3 to 7 As shown, in order to fix the outer sleeve 23 relative to the inner sleeve 22 and prevent axial or circumferential loosening, a third limiting rib 2321 is provided on the inner wall of the second baffle 232, and a corresponding slot 225 is provided on the outer wall of the inner sleeve 22. The third limiting rib 2321 is engaged with the slot 225, so that the outer sleeve 23 can be securely fitted on the outside of the inner sleeve 22, thereby improving the overall structural stability.
[0045] like Figure 4 and Figure 7 As shown, a closed cover 3 is provided at the end of the ventilation pipe 2 away from the main body 1 of the curling iron. A positioning protrusion 31 is formed on the closed cover 3, and a positioning sleeve 215 is formed on the movable inner core 21 to be inserted and matched with it. After the positioning protrusion 31 is inserted into the positioning sleeve 215, a reliable seal can be formed at the end of the ventilation pipe 2 to prevent hot air leakage. At the same time, this structure can also be used as a drive mechanism. The user can drive the movable inner core 21 to rotate synchronously by rotating the closed cover 3 to adjust the air suction mode.
[0046] like Figure 6 As shown, in order to enhance sealing and stability, multiple sealing ribs 224 distributed circumferentially are provided on the outer wall of the inner sleeve 22. The sealing ribs 224 are tightly abutted against the inner wall of the outer sleeve 23, which can effectively prevent air from entering the gap between the inner and outer sleeves 23, reduce wind loss, and improve suction efficiency.
[0047] like Figures 2 to 5 As shown, a guide protrusion 217 is formed at the bottom of the movable inner core 21, and a guide groove 11 is correspondingly provided on the main body 1 of the curling iron. The guide protrusion 217 slides in the guide groove 11, which can provide guidance and limit for the rotation of the movable inner core 21, so that it always maintains the correct rotation trajectory during the rotation process and will not deviate or tilt, thereby ensuring the stability and reliability of the structure of the ventilation pipe 2.
[0048] The basic working principle of this utility model is as follows: When the curling iron is working, the fan inside the curling iron body 1 generates negative pressure, and air is drawn in from the air intake on the side wall of the ventilation pipe 2. The ventilation pipe 2 has a through ventilation channel 218 inside, and the drawn-in air flows along the ventilation channel 218 into the interior of the curling iron, and finally exits from the bottom of the curling iron body 1. The movable inner core 21 inside the ventilation pipe 2 can rotate relative to the inner sleeve 22 and the outer sleeve 23. Through the windproof part 211 on its outer periphery, it can selectively close the first air intake 233 or the second air intake 234, or leave both unblocked. When the first limiting rib 213 is engaged in the limiting groove 222, the first air intake 233 and the second air intake 234 are closed. The air inlets 234 are all connected to the air inlet channel 212, which can form a dual-sided air intake mode. When the second limiting rib 214 is engaged with the limiting groove 222, the windproof part 211 of the movable inner core 21 blocks the first air inlet 233 or the second air inlet 234, thus forming a single-sided air intake mode. With this structural design, the curling iron can switch between single-sided and dual-sided air intake as needed. When in dual-sided air intake mode, the curling iron can draw in air from both sides at the same time, increasing the air intake volume, making the temperature more uniform during the curling process, and making the curls more fluffy and natural. When in single-sided air intake mode, the air intake direction of the curling iron is more concentrated, which is more suitable for use scenarios close to the scalp.
[0049] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A curling iron with dual-sided suction, comprising a curling iron body (1) and a ventilation tube (2) disposed thereon, characterized in that: The ventilation pipe (2) has a ventilation channel (218) running through its interior along the axial direction, and the end of the ventilation pipe (2) away from the curling iron body (1) is closed. The ventilation pipe (2) has a plurality of first air inlets (233) and a plurality of second air inlets (234) arranged sequentially and adjacently along the circumferential direction on its side wall, with the opening directions of the first air inlets (233) and the second air inlets (234) being opposite to each other. The ventilation tube (2) includes a movable inner core (21) rotatably disposed on the body of the curling iron (1), an inner sleeve (22) sleeved on the outside of the movable inner core (21), and an outer sleeve (23) sleeved on the outside of the inner sleeve (22). The inner sleeve (22) and the outer sleeve (23) are fixed to the body of the curling iron (1). The movable inner core (21) can rotate relative to the inner sleeve (22) and the outer sleeve (23), and selectively block the first air intake (233) or the second air intake (234), or simultaneously open the first air intake (233) and the second air intake (234) to achieve switching between single-sided air intake and double-sided air intake.
2. The curling iron with double-sided suction according to claim 1, characterized in that: The outer sleeve (23) includes a first baffle (231) and a second baffle (232) arranged sequentially adjacent to each other in the circumferential direction. The end of the second baffle (232) is spaced inside the end of the first baffle (231), and the first air intake (233) and the second air intake (234) are defined on both sides of the first baffle (231). The inner sleeve (22) is provided with a connecting groove (221) corresponding to the first air intake (233) and the second air intake (234), and the first air intake (233) and the second air intake (234) are connected to the ventilation duct (218) through the connecting groove (221).
3. A curling iron with double-sided suction according to claim 1, characterized in that: The movable inner core (21) includes a windproof part (211), and an air inlet channel (212) is provided between the windproof parts (211). When the movable inner core (21) rotates to different positions, the windproof part (211) can block the first air inlet (233) or the second air inlet (234), or neither can be blocked.
4. A curling iron with dual-sided suction according to claim 3, characterized in that: The windbreak (211) is provided with a first limiting rib (213) and a second limiting rib (214). The first limiting rib (213) is located in the middle of the windbreak (211), and the second limiting rib (214) is located on both sides of the air inlet channel (212). The inner sleeve (22) is provided with a limiting groove (222). When the first limiting rib (213) is engaged with the limiting groove (222), the first air intake (233) and the second air intake (234) are both connected to the air inlet channel (212). When the second limiting rib (214) engages with the limiting groove (222), the first air intake (233) or the second air intake (234) is blocked by the windproof part (211).
5. A curling iron with double-sided suction according to claim 2, characterized in that: The connecting groove (221) has air guiding arcs (223) at both ends, and the air guiding arcs (223) extend in an arc shape from the outer wall of the inner sleeve (22) to the inner side.
6. A curling iron with dual-sided suction according to claim 2, characterized in that: The inner wall of the second baffle (232) is provided with a third limiting rib (2321), and the outer wall of the inner sleeve (22) is provided with a corresponding slot (225). The third limiting rib (2321) is engaged with the slot (225).
7. A curling iron with dual-sided suction according to claim 1, characterized in that: The ventilation pipe (2) has a closed cover (3) at one end away from the curling iron body (1). The closed cover (3) has a positioning protrusion (31), and the movable inner core (21) has a positioning sleeve (215). The positioning protrusion (31) and the positioning sleeve (215) are inserted into each other.
8. A curling iron with dual-sided suction according to claim 7, characterized in that: The positioning sleeve (215) is provided with a positioning groove (216), and the positioning protrusion (31) is provided with a positioning protrusion (32), which engages with the positioning groove (216).
9. A curling iron with double-sided suction according to claim 1, characterized in that: The outer wall of the inner sleeve (22) is also provided with a plurality of sealing ribs (224), which abut against the outer sleeve (23).
10. A curling iron with dual-sided suction according to claim 1, characterized in that: The bottom of the movable inner core (21) is provided with a guide protrusion (217), and the main body (1) of the curling iron is provided with a guide groove (11), and the guide protrusion (217) is movably disposed in the guide groove (11).
