Perm clip

By designing a continuous arc-shaped heating surface and a snap-fit ​​structure, the hair curling clip solves the problem of existing hair curling clips easily snagging and pulling hair, realizing a multi-functional hair curling clip and improving user experience and production convenience.

CN224112252UActive Publication Date: 2026-04-14FOSHAN YAXILI E-COMMERCE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing hair curling irons are prone to snagging hair when curling and have limited functionality, lacking hair-clamping capabilities. There is a market demand for a multi-functional product that combines the features of a hair curling iron and a curling stick.

Method used

Design a hair curling iron with a continuous heating surface and a gentle curve. The curved, elongated heating element transitions smoothly into the outer shell. Combined with the snap-fit ​​structure of the clamp plate and connecting seat, it achieves a stable fixation. A motor is installed inside the outer shell to output cool airflow, enhancing the styling effect.

Benefits of technology

It achieves multi-functional use of hair curling iron, making it less likely to snag hair when curling, resulting in smooth styling. It also has the functions of partial curling and wrapping, improving the user experience and facilitating production and installation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224112252U_ABST
    Figure CN224112252U_ABST
Patent Text Reader

Abstract

The utility model discloses a perm clip. The perm clip comprises a front shell, a rear shell, a heating piece and a clamping plate. The front shell and the rear shell form a shell, and at least the front shell is provided with an arc-shaped bent surface; an arc-bent long-strip-shaped heating piece is installed on the front shell, the edges of the two sides of the heating piece are in smooth transition with the rear shell, the arc outline of the heating piece is in continuous transition with the edge of the rear shell, the two ends of the heating piece are flush with the front shell, and therefore a heating face with a half area being in an arc-bent shape is formed on the front end face of the shell. A connecting base is installed in the front shell, clamping grooves are formed in the two ends of the connecting base, and the two ends of the heating piece are inserted into the clamping grooves; the clamping plate and the shell are hinged to form a clamping structure, and the area, in contact with the heating face, in the clamping plate is a bent face matched with the bent radian of the heating face. The heating surface of the perm clip is coherent, so that the perm clip is smooth to use during shaping, and the perm clip has the functions of winding perm and local shaping.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of hair styling technology, and more particularly to a hair curling clip. Background Technology

[0002] As people's living standards improve, hair styling devices are increasingly being used in homes. These products typically include hair straighteners and curling irons. Hair straighteners are generally clip-shaped and often use a flat clamping design, resulting in poor curling effects. Although some hair straighteners have curved plates, the curvature is relatively small, and the heating surface is usually a separate, raised curved surface connected to the main body via a step, making it easy to snag hair during curling. Existing curling irons use a single, rounded body that winds hair around it by rotating a component, but lack hair clamping functionality. Therefore, the market urgently needs a product that combines the functions of a hair straightener and a curling iron. Furthermore, when using a larger rounded heating surface on a hair straightener, the issues of fixing and installing the heating surface must also be considered. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems and provide a hair curling clip. The hair curling clip of this application has a continuous heating surface, which makes it easy to use when styling hair. It can be used for both curling and local styling, and is easy to manufacture and install.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A hair curling iron includes a front housing, a rear housing, a heating element, and a clamping plate. The front housing and the rear housing constitute an outer shell, and at least the front housing has an arc-shaped curved surface. An arc-shaped curved elongated heating element is mounted on the front housing. The two sides of the heating element smoothly transition with the rear housing, and its arc-shaped contour is continuously connected to the edge of the rear housing. The two ends of the heating element are flush with the front housing, so that a heating surface with half of its area being arc-shaped is formed on the front end face of the outer shell. A connecting seat is installed inside the front housing, and both ends of the connecting seat are provided with snap-fit ​​grooves. The two ends of the heating element are inserted into the snap-fit ​​grooves. The clamping plate and the outer shell are hinged to form a clamping structure. The area of ​​the clamping plate that contacts the heating surface is a curved surface that matches the curvature of the heating surface.

[0006] In one embodiment, both ends of the connector extend with limiting walls that are consistent with the shape of the heating element, and both ends of the heating element abut against the limiting walls.

[0007] In one embodiment, the connector has locking blocks extending to the limiting wall at both ends, and the locking blocks and the connector form the locking groove; the heating element has symmetrically distributed L-shaped locking ribs on its inner side, and the locking ribs are fastened to the locking blocks.

[0008] In one embodiment, limiting ribs extend from both sides of the heating element near the edge, and limiting grooves are provided on both sides of the connecting seat. When the heating element is engaged with the connecting seat, the limiting ribs engage with the limiting grooves to limit the heating element.

[0009] In one embodiment, the connecting base includes a separable first connecting plate and a second connecting plate, which are installed sequentially on the front housing in an upper and lower position, and the two ends of the heating element are respectively engaged with the first connecting plate and the second connecting plate.

[0010] In one embodiment, the edge of the rear housing is provided with a plurality of protrusions near the heating element, and the protrusions are arc-shaped.

[0011] In one embodiment, a spring is installed between the front housing and the connecting seat, so that the connecting seat can move inward to the inside of the housing after being subjected to force and can automatically reset.

[0012] In one embodiment, the front housing is provided with a connecting groove, and the top of each connecting seat extends with a connecting block, which is inserted into the connecting groove.

[0013] In one embodiment, the rear housing has a plurality of airflow holes, and a motor is installed inside the housing to allow airflow to be output from the airflow holes.

[0014] In one embodiment, a heat insulation sheet is provided on the side of the clamp that is in contact with the heating element, and a heat dissipation hole is provided on the other side of the clamp.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The heating element of this hair curler is integrated with the overall outline of the outer shell, and the outer shell has a heating surface on half of it. This allows the hair curler to be used for partial curling and hair styling, combining multiple functions. The styling is smooth and the continuous arc is relatively gentle, which optimizes the styling design and makes it easier for users to do partial styling. At the same time, the connecting base is provided with limiting walls and locking grooves at both ends, which, together with the locking ribs and locking blocks of the heating element, achieve precise positioning and stable fixation of the heating element. In addition, the connecting base has a split structure, which facilitates manufacturing and assembly. Attached Figure Description

[0017] Figure 1 A structural diagram of a hair curling clip provided by this utility model;

[0018] Figure 2 This is an exploded view of the structure of the hair curling clip provided by this utility model;

[0019] Figure 3 An exploded view of the connecting seat and the front housing provided by this utility model;

[0020] Figure 4 An exploded view of the connector and heating element provided by this utility model;

[0021] Figure 5 This is a cross-sectional view of the connector and heating element provided by this utility model.

[0022] Figure 6 A schematic diagram of the structure of the motor provided by this utility model. Detailed Implementation

[0023] This application provides a hair curling clip to solve the technical problems of existing hair curling clips, such as the tendency of some hair curling clips to snag hair during curling, the lack of smoothness in styling hair, and the limited functionality, which affect the user experience.

[0024] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figures 1 to 6 This application provides a hair curling clip, including a front housing 100, a rear housing 200, a heating element 300, and a clamping plate 20; the front housing and the rear housing constitute an outer shell 10, and at least the front housing 100 has an arc-shaped curved surface; an arc-shaped curved elongated heating element 300 is mounted on the front housing 100, the two side edges of the heating element 300 smoothly transition with the rear housing 200, and its arc-shaped contour continuously transitions with the edge of the rear housing 200, the heating element 300... Both ends are flush with the front housing 100, so that a heating surface with half of its area being curved is formed on the front end face of the outer housing 10; a connecting seat 400 is installed inside the front housing 100, and both ends of the connecting seat 400 are provided with snap-fit ​​grooves 410, and both ends of the heating element 300 are inserted into the snap-fit ​​grooves 410; the clamping plate 20 and the outer housing 10 are hinged to form a clamping structure, and the area of ​​the clamping plate 20 that contacts the heating surface is a curved surface that matches the curvature of the heating surface.

[0026] Specifically, the front housing 100 and the rear housing 200 are fastened together and connected by threads to form an outer shell 10 with an overall arc-shaped surface. The front side of the front housing 100 is an arc-shaped curved surface. In this embodiment, the outer shell 10 is generally elliptical with gentle arcs on both sides. A groove is provided at the upper part of the front housing 100, and the heating element 300 is fixed in this groove, with its edges close to the edges of the rear housing 200. This ensures that the heating element 300 is seamlessly integrated with the outline of the outer shell 10 after installation. The connection between the heating element 300 and the outer shell 10 is smooth, and the overall outline is continuous. This allows the user to perform partial curling or hair curling, offering multiple functions. The user experiences smooth operation when curling hair, and because the heating element 300 is an elliptical arc with a gentle curve, it is easier to create localized styles, such as curling the hair at the crown, resulting in a more aesthetically pleasing look. A groove is movably installed on the front side of the front housing 100. The connector 400 is fixed to the front housing 100 by a threaded connection. Both its upper and lower ends have snap-fit ​​grooves 410. The heating element 300 is inserted into the snap-fit ​​grooves 410, with its upper and lower ends fitting against the ends of the connector 400, allowing for quick and easy installation and ensuring a stable and secure installation of the heating element 300. The fit between the heating element 300 and the connector 400 makes their contours smooth, preventing hair from getting caught during use. The inner cavity formed by the arc-shaped heating element 300 and the connector 400 can accommodate the heating component. The heating component, fixed within the inner cavity of the heating element and the connector 400, quickly conducts heat to the heating element 300. The front housing 100 has holes that connect the heating component to the internal circuit board via the snap-fit ​​grooves 410, thereby controlling the heating of the heating component and effectively utilizing space.

[0027] Furthermore, both ends of the connecting seat 400 extend with limiting walls 420 that are identical in shape to the heating element 300, and both ends of the heating element 300 abut against the limiting walls 420. The limiting walls 420 extending from both ends of the connecting seat 400 are arc-shaped and consistent with the shape of the heating element 300. When the heating element 300 is engaged in the engaging groove 410, both ends abut against the limiting walls 420, and the end face of the connecting seat 400 is flush with the end face of the limiting walls 420. This not only securely positions the heating element 300 but also prevents gaps from forming that could affect its use.

[0028] Furthermore, the connecting seat 400 has locking blocks 430 extending to the limiting wall 420 at both ends, forming a locking groove 410 between the locking blocks 430 and the connecting seat 400. The heating element 300 has symmetrically distributed L-shaped locking ribs 310 on its inner side, which are fastened to the locking blocks 430. The connecting seat 400 has connecting grooves 440 on both sides near the top. The locking blocks 430 are located outside the connecting grooves 110 and extend to the limiting wall 420, horizontally positioned on the connecting grooves 440, thus forming a locking groove 410 with the connecting grooves 440. The locking ribs 310 on the inner side of the heating element 300 are symmetrically distributed in an L-shape, and the locking ribs are inserted into the locking grooves 410, allowing for quick installation on the connecting seat 400. The installation structure is simple, requiring no other fixing structures, thus simplifying the production process. Furthermore, limiting ribs 320 extend from both sides of the heating element 300 near its edge, and corresponding limiting grooves 480 are provided on both sides of the connecting seat 400. When the heating element 300 is engaged with the connecting seat 400, the limiting ribs 310 engage with the limiting grooves 480 to limit the heating element 300. The limiting ribs 320 are located outside the engaging ribs 310 and extend horizontally towards the center. The two sides of the connecting seat 400 form limiting grooves 480 with the width of the limiting ribs 320. When the connecting seat is installed, the limiting grooves 480 engage with the limiting ribs 320, which quickly positions the connecting seat 400 and the heating element 300 while ensuring the stable installation of the connecting seat 400.

[0029] Furthermore, the connecting base 400 includes a separable first connecting plate 450 and a second connecting plate 460, which are sequentially mounted vertically on the front housing 100. The two ends of the heating element 300 are respectively engaged with the first connecting plate 450 and the second connecting plate 460. The connecting base 400, composed of the first connecting plate 450 and the second connecting plate 460, is separable. When the heating element 300 is installed, the first connecting plate 450 and the second connecting plate 460 can be connected to the mating ribs at both ends of the heating element 300 for quick installation. After the two ends of the heating element 300 are engaged with the first connecting plate 450 and the second connecting plate 460 respectively, the first connecting plate 450 and the second connecting plate 460 are fixed by the inner side of the front housing 100. This allows the heating element 300 to be quickly engaged and fixed while the installation of the connecting base 400 remains unaffected, enabling the heating element 300 to form a continuous shape with the housing. The overall structure is simple, reasonable, and easy to install.

[0030] For details, please refer to Figure 2The rear housing 200 has several protrusions 210 spaced apart near the heating element 300 along its edge. These protrusions 210 are arc-shaped. The multiple protrusions 210 spaced apart on both sides of the rear housing 200 in the area corresponding to the heating surface form a flow distribution zone. When the hair is curled, the arc-shaped protrusions 210 can distribute the hair, making it more dispersed and more even during the perming process.

[0031] Furthermore, a spring piece 500 is installed between the front housing 100 and the connecting seat 400, so that the connecting seat 400 can move inward to the outer shell 10 after being subjected to force and can automatically reset. The middle part of the front housing 100 protrudes to form an annular rib to limit the installation position of the spring piece 500. An M-shaped spring piece is fixed on the inner side of the front housing 100. The middle part of the spring piece 500 is arc-shaped, and the protruding parts on both sides abut against the connecting seat 400, so that the connecting seat 400 and the heating element 300 are slightly higher than the outer arc-shaped end face of the front housing 100 when not subjected to force. When the hair is rolled, the connecting seat 400 is subjected to force and squeezes the spring piece 500, so that the outer contour between the heating element 300 and the outer shell 10 is continuous, and the hair can be closely attached during the perming process, improving the perming efficiency.

[0032] See Figure 3 The front housing 100 is provided with a connecting groove 110, and the top of each connecting seat 400 extends with a connecting block 470, which is inserted into the connecting groove 110. The connecting groove 110 is provided near the top of the front housing 100, and the connecting seat 400 is provided with a square connecting block 470 on the upper side of the limiting wall 420. When the connecting seat 400 is installed on the front housing 100, it is quickly positioned by inserting the connecting block 470 into the connecting groove 110. The size of the connecting block 470 is smaller than that of the connecting groove 110. When the connecting seat 400 is moved by the compression and reset of the spring piece 500, the connecting groove 110 can limit the movement of the connecting seat 400, ensuring that the heating element 300 can maintain a smooth transition with the contour of the outer shell 10.

[0033] See further Figure 6 The rear housing 200 has several airflow holes 220. A motor 600 is installed inside the housing so that the airflow holes 220 output cool airflow. The motor 600 is connected to fan blades, so that the motor outputs airflow upward when running. The cool airflow output by the rear housing 200 cools the circuit board. At the same time, the airflow can be output through the airflow holes 220 for cool air styling when curling hair, improving the practicality of the product.

[0034] The outer shell 10 is provided with a clamping plate 20 on one side where the heating element 300 is provided. The side of the clamping plate 20 that is in contact with the heating element 300 is provided with a heat insulation sheet 21. The heat insulation sheet 21 forms an arc-shaped curved surface that is consistent with the shape of the heating surface. It can be used to clamp and style hair during perming. The other side of the clamping plate 20 is provided with a heat dissipation hole 22. The heat dissipation hole 22 facilitates the heat insulation sheet 21 to dissipate heat.

[0035] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A hair curling clip, characterized in that, The device includes a front housing, a rear housing, a heating element, and a clamping plate. The front housing and the rear housing constitute an outer shell, and at least the front housing has an arc-shaped curved surface. An arc-shaped curved elongated heating element is installed on the front housing. The two sides of the heating element smoothly transition with the rear housing, and its arc-shaped contour is continuously connected to the edge of the rear housing. The two ends of the heating element are flush with the front housing, so that a heating surface with half of its area being arc-shaped is formed on the front end face of the outer shell. A connecting seat is installed inside the front housing. Both ends of the connecting seat are provided with snap-fit ​​grooves, and the two ends of the heating element are inserted into the snap-fit ​​grooves. The clamping plate and the outer shell are hinged to form a clamping structure. The area of ​​the clamping plate that contacts the heating surface is a curved surface that matches the curvature of the heating surface.

2. The hair curling clip according to claim 1, characterized in that, Both ends of the connector extend with limiting walls that are identical in shape to the heating element, and both ends of the heating element abut against the limiting walls.

3. The hair curling clip according to claim 2, characterized in that, The connecting seat has locking blocks extending to the limiting wall at both ends, and the locking blocks and the connecting seat form the locking groove; the heating element has symmetrically distributed L-shaped locking ribs on its inner side, and the locking ribs are fastened to the locking blocks.

4. The hair curling clip according to claim 3, characterized in that, Limiting ribs extend from both sides of the heating element near the edge, and limiting grooves are provided on both sides of the connecting seat. When the heating element is engaged with the connecting seat, the limiting ribs engage with the limiting grooves to limit the heating element.

5. The hair curling clip according to claim 1, characterized in that, The connecting base includes a separable first connecting plate and a second connecting plate, which are installed sequentially on the front housing in an upper and lower position. The two ends of the heating element are respectively engaged with the first connecting plate and the second connecting plate.

6. The hair curling clip according to claim 1, characterized in that, The rear housing has several protrusions spaced near the heating element at intervals along its edge, and these protrusions are arc-shaped.

7. The hair curling clip according to claim 1, characterized in that, A spring is installed between the front housing and the connecting seat, so that the connecting seat can move inward to the inside of the housing after being subjected to force and can automatically reset.

8. The hair curling clip according to claim 7, characterized in that, The front housing is provided with a connecting groove, and the top of each connecting seat extends with a connecting block, which is inserted into the connecting groove.

9. The hair curling clip according to claim 1, characterized in that, The rear housing has several airflow holes, and a motor is installed inside the housing to output airflow through the airflow holes.

10. The hair curling clip according to claim 1, characterized in that, The side of the clamp that is in contact with the heating element is provided with a heat insulation sheet, and the other side of the clamp is provided with heat dissipation holes.