A hair curler with variable air direction

By designing adjustable counter-clockwise and clockwise air guide channels in the hair dryer curling iron, and combining the rotating connection between the base and the air distribution ribs, the problem of inconvenient airflow switching in existing curling irons is solved, enabling convenient airflow adjustment and reducing leakage, thereby improving the user experience and extending the lifespan of the equipment.

CN224671014UActive Publication Date: 2026-08-25SHENZHEN PUCHENG TECHNOLOGY R&D CO LTD +1
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Patent Information

Application Number
CN202521998482.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-08-25
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

Existing hair dryers and curling irons have inconvenient airflow switching, high operating costs, and are prone to malfunctions due to seal failure and alternating hot and cold temperatures, resulting in a short lifespan.

Method used

Design a curling iron with variable airflow direction. By setting counter-clockwise and clockwise airflow channels between the outer cover and the parting rib, and utilizing the rotational connection between the base and the parting rib, the airflow direction can be adjusted, avoiding relative rotation between the outer cover and the parting rib and reducing airflow leakage.

Benefits of technology

It enables convenient switching of wind direction, reduces airflow leakage, extends service life, and improves user experience and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of curling irons with variable wind direction, comprising: cover, cover has several annular array settings reverse-time air guide groove and clockwise air guide groove, reverse-time air guide groove and clockwise air guide groove are staggered arrangement;Air distribution bone, air distribution bone is configured in cover, the outer wall of air distribution bone is equipped with the first air guide hole being communicated with reverse-time air guide groove and the second air guide hole being communicated with clockwise air guide groove, air distribution bone is equipped with the first air duct being communicated with the first air guide hole and being backward open and the second air duct being communicated with the second air guide hole and being backward open;Base, it is set in the rear end of air distribution bone, base is equipped with several axial through and annular array settings air inlet, there is wind blocking portion between adjacent air inlet, base and air distribution bone can be relatively rotatable configuration, so that air inlet selectively communicates first air duct or second air duct, while making wind blocking portion selectively blocks second air duct or first air duct.
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Description

Technical Field

[0001] This utility model relates to the field of hair curling iron technology, and in particular to a hair curling iron with variable airflow direction. Background Technology

[0002] Hair dryer curling irons are a new type of hair styling tool. Unlike traditional methods that use heated rods to contact the hair, hair dryer curling irons use hot air to shape the hair, achieving a convenient "style as soon as you dry" experience. They are an innovative product that combines hair dryer and curling functions in recent years.

[0003] Conventional hair dryers and curling irons only have a single airflow direction. To curl hair on the left side, you need to use a hair dryer with the left airflow direction, and to curl hair on the right side, you need to use a hair dryer with the right airflow direction. This is a poor user experience, high operating costs, and very unfriendly.

[0004] With the development of technology, some hair dryers and curling irons with switchable airflow have emerged, such as the Chinese invention patent CN117502796A. The airflow direction is switched by rotating the trigger position between the outer and inner sleeves. However, this switching method is prone to inconsistent airflow; the sealing surface is large and prone to failure; the frequent rotation between the inner and outer sleeves and the alternating hot and cold temperatures can easily cause loosening, malfunction, and short service life; and the outer sleeve is affected by hot air and has a high temperature, making it inconvenient and uncomfortable to rotate. Utility Model Content

[0005] In view of the above situation, it is necessary to propose a hair curler with variable wind direction that allows for easy switching of wind direction.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a hair curler with variable airflow direction, comprising:

[0007] The outer cover has a plurality of counter-clockwise air guide slots and clockwise air guide slots arranged in a circular array, and the counter-clockwise air guide slots and clockwise air guide slots are arranged alternately.

[0008] The air divider is disposed inside the outer cover. The outer wall of the air divider is provided with a first air guide hole communicating with the counter-clockwise air guide groove and a second air guide hole communicating with the clockwise air guide groove. The air divider is provided with a first air duct that opens to the rear and communicates with the first air guide hole and a second air duct that opens to the rear and communicates with the second air guide hole.

[0009] A base is disposed at the rear end of the air distribution frame. The base is provided with a plurality of axially penetrating and circularly arranged air inlets. There are wind-blocking parts between adjacent air inlets. The base and the air distribution frame can be rotated relative to each other so that the air inlets can selectively connect to the first air duct or the second air duct, while the wind-blocking parts can selectively block the second air duct or the first air duct.

[0010] Furthermore, the outer cover includes a plurality of outer pieces and a plurality of inner pieces, the outer pieces and the inner pieces being staggered in the circumferential direction, the outer pieces having a counterclockwise air guide groove between them and the inner pieces adjacent to them counterclockwise, and the outer pieces having a clockwise air guide groove between them and the inner pieces adjacent to them clockwise; the ends of the outer pieces and the inner pieces are connected, and the counterclockwise air guide groove and the clockwise air guide groove are formed in the middle.

[0011] Furthermore, a pivot is connected to the center of the base, and the base rotates with the pivot. The pivot can rotate through the air rib. A knob is provided at the front end of the air rib, and the knob is connected to the pivot and drives the pivot to rotate.

[0012] Furthermore, the air distribution frame includes a central cylinder, a baffle extending radially outward along the central cylinder, and an outer peripheral wall connected to the outer end of the baffle. The first air guide hole and the second air guide hole are disposed on the outer peripheral wall, and the outer peripheral wall is also provided with a raised rib. The inner wall of the outer cover is provided with a groove that matches the raised rib.

[0013] Furthermore, the first air guide hole and the second air guide hole are also provided with a plurality of air guide grids, the rear end face of the air guide grids being concave.

[0014] Furthermore, the rear end of the split rib is provided with a connecting cylinder, which is hollow, and the base is rotatably disposed inside the connecting cylinder.

[0015] Furthermore, the inner diameter of the air inlet gradually decreases from back to front, the front end of the connecting cylinder is provided with an air-gathering part, the inner diameter of the air-gathering part gradually decreases from back to front, and the rear end of the outer cover has a trumpet-shaped mounting opening, into which the air-gathering part extends.

[0016] Furthermore, the connecting cylinder is also provided with an air guide tube, which is disposed at the rear end of the base, and a sealing ring is disposed at the rear end of the air guide tube.

[0017] Furthermore, a mounting base is fixed to the top of the splitter frame. The mounting base is provided with an elastic element and a positioning element. The elastic element abuts against the positioning element. The outer end of the positioning element is conical or triangular. The knob is provided with a counterclockwise positioning groove and a clockwise positioning groove. When the knob is rotated, the positioning element rotates relative to the knob, thereby switching the positioning element between the counterclockwise positioning groove and the clockwise positioning groove.

[0018] Furthermore, the outer wall of the rear end of the base is provided with a stop block, and the connecting cylinder is provided with a limiting groove. The stop block rotates in the limiting groove. When the stop block abuts against the counterclockwise end of the limiting groove, the air inlet is connected to the first air duct; when the stop block abuts against the clockwise end of the limiting groove, the air inlet is connected to the second air duct.

[0019] The beneficial effects of this utility model are as follows: When a counter-clockwise airflow is needed, the base is rotated to connect the air inlet with the first air duct, while the windproof part of the base closes the second air duct. The air entering from the base passes sequentially through the air inlet, the first air duct, the first air hole, and the counter-clockwise air guide groove, forming a counter-clockwise airflow. When a clockwise airflow is needed, the base is rotated to connect the air inlet with the second air duct, while the windproof part of the base closes the first air duct. The air entering from the base passes sequentially through the air inlet, the second air duct, the second air guide hole, and the clockwise air guide groove, forming a clockwise airflow. The airflow direction adjustment relies on the rotation between the axially fitted base and the air distribution frame. The outer cover and the air distribution frame are fixed and there is no relative rotation. The airflow leakage between the base and the air distribution frame is small, and sealing may not even be necessary. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of a hair curler with variable wind direction according to an embodiment of the present invention;

[0021] Figure 2 This is an exploded structural diagram of a hair curler with variable wind direction according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the parting structure of a curling iron with variable airflow according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the base of a hair curler with variable airflow according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the base of a hair curler with variable airflow direction according to an embodiment of the present invention from another direction;

[0025] Figure 6 This is a schematic diagram of the reverse-time airflow of a hair curler with variable airflow direction according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the clockwise airflow of a hair curler with variable airflow direction according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the top positioning structure of a hair curler with variable airflow according to an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the bottom limiting structure of a hair curler with variable airflow according to an embodiment of the present invention.

[0029] Label Explanation:

[0030] 100. Outer cover; 110. Counter-clockwise air guide slot; 120. Clockwise air guide slot; 130. Outer sheet; 131. Groove;

[0031] 140. Inner panel; 150. Mounting port; 151. Recessed groove; 200. Partition rib; 210. Outer peripheral wall;

[0032] 211. First air guide hole; 212. Second air guide hole; 213. Raised rib; 214. Air guide grille;

[0033] 220. Baffle; 221. First air duct; 222. Second air duct; 230. Central cylinder; 240. Mounting base;

[0034] 250, Elastic component; 260, Positioning component; 300, Base; 310, Air inlet; 320, Windproof part;

[0035] 330, stop block; 400, rotating shaft; 500, knob; 510, counter-clockwise positioning groove; 520, clockwise positioning groove;

[0036] 600. Connecting cylinder; 610. Air concentrator; 611. Rib; 620. Limiting groove; 700. Air guide tube;

[0037] 710. Sealing ring. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a variable-direction hair curler, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0039] Please refer to Figures 1-9 A hair curler with variable airflow direction, comprising:

[0040] The outer cover 100 has several counter-clockwise air guide slots 110 and clockwise air guide slots 120 arranged in a ring array, and the counter-clockwise air guide slots 110 and clockwise air guide slots 120 are arranged alternately.

[0041] The air divider 200 is disposed inside the outer cover 100. The outer wall of the air divider 200 is provided with a first air guide hole 211 communicating with the counter-clockwise air guide groove 110 and a second air guide hole 212 communicating with the clockwise air guide groove 120. The air divider 200 is provided with a first air duct 221 that opens to the rear and communicates with the first air guide hole 211 and a second air duct 222 that opens to the rear and communicates with the second air guide hole 212.

[0042] The base 300 is located at the rear end of the air distribution frame 200. The base 300 is provided with a plurality of axially penetrating and annularly arranged air inlets 310. There is a windproof part 320 between adjacent air inlets 310. The base 300 and the air distribution frame 200 can be rotated relative to each other so that the air inlets 310 can selectively connect to the first air duct 221 or the second air duct 222, while the windproof part 320 can selectively block the second air duct 222 or the first air duct 221.

[0043] When a counter-clockwise wind direction is needed, rotate the base 300 to connect the air inlet 310 with the first air duct 221. At the same time, the windproof part 320 of the base 300 closes the second air duct 222. The air coming in from the base 300 passes through the air inlet 310, the first air duct 221, the first air hole, and the counter-clockwise air guide groove 110 in sequence to form a counter-clockwise wind direction. When a clockwise wind direction is needed, rotate the base 300 to connect the air inlet 310 with the second air duct 222. At the same time, the windproof part 320 of the base 300 closes the first air duct 221. The air coming in from the base 300 passes through the air inlet 310, the second air duct 222, the second air guide hole, and the clockwise air guide groove 120 in sequence to form a clockwise wind direction. The wind direction adjustment relies on the rotation between the axially fitted base 300 and the wind divider 200. The outer cover 100 and the wind divider 200 are fixed and do not rotate relative to each other. The air leakage between the base 300 and the wind divider 200 is small, and sealing may not even be necessary.

[0044] Please refer to Figure 3 The outer cover 100 includes several outer panels 130 and several inner panels 140. The outer panels 130 and inner panels 140 are staggered in the circumferential direction. A counter-clockwise air guide groove 110 is formed between an outer panel 130 and an inner panel 140 adjacent to it counter-clockwise, and a clockwise air guide groove 120 is formed between an outer panel 130 and an inner panel 140 adjacent to it clockwise. It is understood that the outer diameter of the outer panel 130 is larger than the outer diameter of the inner panel. Both the counter-clockwise air guide groove 110 and the clockwise air guide axis are set at an outward angle, generally less than 30 degrees, to generate a spiral airflow. The counter-clockwise air guide groove 110 is tilted counter-clockwise, and the clockwise air guide groove 120 is tilted clockwise. The way the outer panels 130 and inner panels 140 form the air guide grooves can extend the width of the air guide grooves and enhance the air pressure.

[0045] Please refer to Figure 3The outer sheet 130 and the inner sheet 140 are connected at their ends, and a counter-clockwise air guide groove 110 and a clockwise air guide groove 120 are formed in the middle. In particular, the outer sheet 130 and the inner sheet 140 are integrally formed. In particular, the outer surfaces of the outer sheet 130 and the inner sheet 140 are both curved surfaces.

[0046] Please refer to Figure 2 A rotating shaft 400 is connected to the center of the base 300. The base 300 rotates with the rotating shaft 400, which rotatably passes through the air distribution rib 200. A knob 500 is located at the front end of the air distribution rib 200. The knob 500 is connected to the rotating shaft 400 and drives the rotating shaft 400 to rotate. That is, the airflow direction is adjusted by rotating the knob 500 at the front end. The design of the rotating shaft 400 also facilitates the installation of the air distribution rib 200, ensures the stability of the air distribution rib 200, and ensures that the center of the air distribution rib 200 and the base 300 are aligned.

[0047] Please refer to Figure 3 The air distribution frame 200 includes a central cylinder 230, baffles 220 extending radially outward along the central cylinder 230, and an outer peripheral wall 210 connected to the outer end of the baffles 220. A first air guide hole 211 and a second air guide hole are disposed on the outer peripheral wall 210. The outer peripheral wall 210 is also provided with a raised rib 213, and the inner wall of the outer cover 100 is provided with a groove 131 that matches the raised rib 213. Understandably, the rotating shaft 400 extends through the central cylinder 230.

[0048] Please refer to Figure 3 The first air guide hole 211 and the second air guide hole 212 are also provided with a number of air guide plates 214, and the rear end face of the air guide plate 214 is concave. The air guide plates 214 make the airflow more uniform and enhance the air pressure.

[0049] Please refer to Figure 4 and Figure 5 The inner diameter of the air inlet 310 gradually decreases from back to front. This increases air pressure and also facilitates the shielding of the air duct.

[0050] Please refer to Figure 1 and Figure 2 The rear end of the splitter 200 is also equipped with a connecting cylinder 600, which is hollow, and the base 300 is rotatably configured inside the connecting cylinder 600. The connecting cylinder 600 is used to connect the rear fan.

[0051] Please refer to Figure 1 and Figure 2The connecting cylinder 600 has an air-gathering part 610 at its front end, the inner diameter of which gradually decreases from back to front. The outer cover 100 has a flared mounting opening 150 at its rear end, into which the air-gathering part 610 extends. This fits into the base 300, thereby enhancing the air pressure. In particular, the mounting opening 150 of the outer cover 100 has a groove 151, and the outer wall of the air-gathering part 610 has ribs 611 that fit into the groove 151 to prevent the connecting cylinder 600 from rotating relative to the outer cover 100.

[0052] Please refer to Figure 1 and Figure 2 The connecting cylinder 600 also contains an air guide 700, which is located at the rear end of the base 300. A sealing ring 710 is installed at the rear end of the air guide 700. The connecting cylinder 600 is connected to the rear-end fan, and the front end of the fan is connected to the air guide 700.

[0053] Specifically, it also includes an adjustment limit structure, which is configured such that when the base 300 is rotated counterclockwise to its limit, the air inlet 310 is connected to the first air duct 221, and the windproof part 320 closes the second air duct 222; when the base 300 is rotated clockwise to its limit, the air inlet 310 is connected to the second air duct 222, and the windproof part 320 closes the first air duct 221.

[0054] Please refer to Figure 2 , Figure 8 and Figure 9 Specifically, a mounting base 240 is fixed to the top of the air distribution frame 200. The mounting base 240 contains an elastic element 250 and a positioning element 260. The elastic element 250 abuts against the positioning element 260. The outer end of the positioning element 260 is conical or triangular. The knob 500 contains a counter-clockwise positioning groove 510 and a clockwise positioning groove 520. When the knob 500 rotates, the positioning element 260 rotates relative to the knob, thus switching between the counter-clockwise positioning groove 510 and the clockwise positioning groove 520. Understandably, when the positioning element 260 engages with the counter-clockwise positioning groove 510, the air inlet 310 communicates with the first air duct 221; similarly, when the positioning element 260 engages with the clockwise positioning groove 520, the air inlet 310 communicates with the second air duct 222. The elastic element 250 can generally be a compression spring.

[0055] Please refer to Figure 2 , Figure 4 and Figure 5 Specifically, the outer wall of the rear end of the base 300 is provided with a stop 330, and the connecting cylinder 600 is provided with a limiting groove 620. The stop 330 rotates in the limiting groove 620. When the stop 330 abuts against the counterclockwise end of the limiting groove 620, the air inlet 310 is connected to the first air duct 221. When the stop 330 abuts against the clockwise end of the limiting groove 620, the air inlet 310 is connected to the second air duct 222.

[0056] Understandably, the knob 500 and the pivot 400 can be connected in a non-circular manner to enable power transmission, or they can be connected by a pin as needed. The same applies to the base 300 and the pivot 400.

[0057] It should be noted that if the embodiments of this utility model 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 certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0058] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such 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.

[0059] In summary, the variable airflow curler provided by this utility model allows for counter-clockwise airflow. When a counter-clockwise airflow is needed, the base is rotated to connect the air inlet with the first air duct, while the base's windproof portion closes the second air duct. Air entering from the base passes sequentially through the air inlet, the first air duct, the first air hole, and the counter-clockwise air guide groove, forming a counter-clockwise airflow. Conversely, when a clockwise airflow is needed, the base is rotated to connect the air inlet with the second air duct, while the base's windproof portion closes the first air duct. Air entering from the base passes sequentially through the air inlet, the second air duct, the second air guide hole, and the clockwise air guide groove, forming a clockwise airflow. Airflow adjustment relies on the rotation between the axially fitted base and the air ribs. The outer cover and the air ribs remain fixed without relative rotation, resulting in minimal airflow leakage between the base and the air ribs, potentially eliminating the need for sealing.

[0060] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A curling iron with variable airflow direction, characterized in that, include: The outer cover has a plurality of counter-clockwise air guide slots and clockwise air guide slots arranged in a circular array, and the counter-clockwise air guide slots and clockwise air guide slots are arranged alternately. The air divider is disposed inside the outer cover. The outer wall of the air divider is provided with a first air guide hole communicating with the counter-clockwise air guide groove and a second air guide hole communicating with the clockwise air guide groove. The air divider is provided with a first air duct that opens to the rear and communicates with the first air guide hole and a second air duct that opens to the rear and communicates with the second air guide hole. A base is disposed at the rear end of the air distribution frame. The base is provided with a plurality of axially penetrating and circularly arranged air inlets. There are wind-blocking parts between adjacent air inlets. The base and the air distribution frame can be rotated relative to each other so that the air inlets can selectively connect to the first air duct or the second air duct, while the wind-blocking parts can selectively block the second air duct or the first air duct.

2. A curling iron with variable airflow direction according to claim 1, characterized in that, The outer cover includes several outer pieces and several inner pieces, which are staggered in the circumferential direction. There is a counterclockwise air guide groove between the outer piece and the inner piece that is adjacent to it counterclockwise, and there is a clockwise air guide groove between the outer piece and the inner piece that is adjacent to it clockwise. The ends of the outer pieces and the inner pieces are connected, and the counterclockwise air guide groove and the clockwise air guide groove are formed in the middle.

3. A curling iron with variable airflow direction according to claim 1, characterized in that, The base is connected to a pivot at its center, and the base rotates with the pivot. The pivot can rotate through the air duct. A knob is provided at the front end of the air duct, and the knob is connected to the pivot and drives the pivot to rotate.

4. A variable-direction hair curler according to claim 1, characterized in that, The air distribution frame includes a central cylinder, a baffle extending radially outward along the central cylinder, and an outer peripheral wall connected to the outer end of the baffle. The first air guide hole and the second air guide hole are disposed on the outer peripheral wall, and the outer peripheral wall is also provided with a raised rib. The inner wall of the outer cover is provided with a groove adapted to the raised rib.

5. A curling iron with variable airflow direction according to claim 1, characterized in that, The first air guide hole and the second air guide hole are also provided with a plurality of air guide grids, the rear end face of the air guide grids being concave.

6. A curling iron with variable airflow direction according to claim 1, characterized in that, The rear end of the splitter is also provided with a connecting cylinder, which is hollow, and the base is rotatably disposed inside the connecting cylinder.

7. A curling iron with variable airflow direction according to claim 6, characterized in that, The inner diameter of the air inlet gradually decreases from back to front. The front end of the connecting cylinder is provided with an air-gathering part, the inner diameter of which gradually decreases from back to front. The rear end of the outer cover has a trumpet-shaped mounting opening, into which the air-gathering part extends.

8. A variable-direction hair curler according to claim 6, characterized in that, The connecting cylinder is also equipped with an air guide tube, which is located at the rear end of the base, and a sealing ring is provided at the rear end of the air guide tube.

9. A curling iron with variable airflow direction according to claim 3, characterized in that, A mounting base is fixed to the top of the splitter frame. The mounting base is provided with an elastic element and a positioning element. The elastic element abuts against the positioning element. The outer end of the positioning element is conical or triangular. The knob is provided with a counterclockwise positioning groove and a clockwise positioning groove. When the knob is rotated, the positioning element rotates relative to the knob, thereby switching the positioning element between the counterclockwise positioning groove and the clockwise positioning groove.

10. A curling iron with variable airflow direction according to claim 6, characterized in that, The base has a stop block on its rear outer wall and a limiting groove inside the connecting cylinder. The stop block rotates within the limiting groove. When the stop block abuts against the counterclockwise end of the limiting groove, the air inlet is connected to the first air duct. When the stop block abuts against the clockwise end of the limiting groove, the air inlet is connected to the second air duct.

Citation Information

Patent Citations

  • Hair curling iron with controllable air outlet direction

    CN117502796A