A curling iron

Abstract

The utility model relates to hairdressing product technical field and discloses a curling iron, two handle housings of mutual activity are connected, S -shaped heat conduction spare is arranged respectively on two handle housings, after two handle housings are combined, the S -shaped heat conduction spare on two handle housings mutually inlay to clamp hair; every S -shaped heat conduction spare has recessed first arc portion and protruding second arc portion relative to corresponding handle housing, one end of first arc portion is connected with one end of second arc portion, the other end of first arc portion is located inside handle housing, and the opening end face with handle housing corresponding side has interval. The curling iron will not produce crease on the wave -shaped hair of forming, and the wave of forming can be smoothly connected for the curling operation of twice before and after, makes curling style natural.

Description

Technical Field

[0001] This utility model relates to the field of hair care product technology, and in particular to a hair curler. Background Technology

[0002] A curling iron is a common hair styling tool. Its core function is to generate heat through a heating element to heat and shape straight or existing hair strands, creating temporary or semi-permanent curls. It is relatively easy to use. See the curling iron and its negative ion curling mechanism disclosed in Chinese Patent CN219020440U, or the curling iron disclosed in Chinese Patent CN223310804U. Both use two S-shaped heat-conducting elements to heat and shape the hair strands. However, both have the same problem: when the user uses the curling iron, they apply force to the upper and lower shells by hand, causing the two S-shaped heat-conducting elements between the upper and lower shells to clamp the passing hair strands and heat and shape them. However, since the two ends of each S-shaped heat-conducting element are flush with or protrude from the opening end face of the corresponding shell, the hair strands at both ends of the S-shaped heat-conducting elements are also heated. After the upper and lower shells are joined, creases are formed on the hair strands. These creases are not conducive to the smooth connection between the waves formed in the next curling operation and the waves formed in the previous curling operation, resulting in an unnatural curling style. Utility Model Content

[0003] The present invention aims to solve the technical problems existing in the prior art and provide a hair curler that does not form creases on the hair.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: The present invention discloses a hair curler comprising two handle housings movably connected to each other. S-shaped heat-conducting elements are respectively provided on the two handle housings. When the two handle housings are closed, the S-shaped heat-conducting elements on the two handle housings interlock to clamp the hair strands. Each S-shaped heat-conducting element has a concave first arc-shaped portion and a convex second arc-shaped portion relative to the corresponding handle housing. One end of the first arc-shaped portion is connected to one end of the second arc-shaped portion, and the other end of the first arc-shaped portion is located inside the handle housing and has a gap with the opening end face of the corresponding side of the handle housing.

[0005] The hair curler of this utility model has one end of the first arc-shaped part located inside the corresponding handle housing, and the end located inside the corresponding handle housing has a gap with the opening end face of the corresponding side of the handle housing. Therefore, when using this hair curler to style hair, when the two handle housings are closed, the hair on both sides of the S-shaped heat-conducting part will not be heated and cannot be shaped, so no creases will be produced on the shaped wavy hair. The waves formed by the two curling operations can be smoothly connected, making the curling style natural.

[0006] Furthermore, the distance D from the free end of the first arc-shaped portion to the opening end face on the corresponding side of the handle housing is ≥3mm.

[0007] Furthermore, the length of the side wall of the handle housing is not less than the length of the S-shaped heat-conducting element.

[0008] Furthermore, after the two handle housings are closed, there is a gap between the open end faces of the two handle housings.

[0009] Furthermore, a first heat insulation component is provided between the S-shaped heat conductor and the corresponding handle housing. The first heat insulation component includes a groove for accommodating the first arc-shaped portion of the S-shaped heat conductor and a connecting portion for connecting with the S-shaped heat conductor. The connecting portion is arranged opposite to the second arc-shaped portion of the S-shaped heat conductor.

[0010] Furthermore, a second heat insulation component and a third heat insulation component are respectively provided at both ends of the S-shaped heat conductor along its length; after the two handle housings are closed, the two second heat insulation components at the same end of the two S-shaped heat conductors are fitted together and the two third heat insulation components at the same end are fitted together.

[0011] Furthermore, a groove is provided on the side of the handle housing facing away from the S-shaped heat conductor, a heat dissipation through hole is provided in the groove, and a heat insulation block is provided at the opening of the groove to cover the opening of the groove, with a heat dissipation gap between the heat insulation block and the groove.

[0012] Furthermore, a partition is provided in the second arc-shaped portion of the S-shaped heat-conducting component. The partition and the second arc-shaped portion form an installation space for installing the heating element. The heating element includes a heating element and two heat-conducting brackets. The two heat-conducting brackets are arranged at intervals in the installation space, and the heating element is disposed between the two heat-conducting brackets.

[0013] Furthermore, a first cover plate is provided inside one of the handle housings, and a PCBA board is provided between the first cover plate and the corresponding handle housing. Buttons, a horn and / or an LED light are electrically connected to the PCBA board, and a heating element is electrically connected to the PCBA board.

[0014] Furthermore, when buttons are electrically connected to the PCBA board, button mounting holes for exposing the buttons are provided on the side wall of the first cover plate. Alternatively, when an LED light is electrically connected to the PCBA board, the LED light is covered with a light-shielding cover that allows light to pass through, and a light-shielding lamp cover is provided on the light-shielding cover. A lamp cover mounting hole is provided on the handle housing to expose the lamp cover. Attached Figure Description

[0015] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0016] Figure 1 This is a schematic diagram of the hair curler structure in an embodiment of the present invention.

[0017] Figure 2 and 3 Cross-sectional views of a hair curler from different angles.

[0018] Figure 4 A schematic diagram showing the structure of the curling iron with part of the handle housing and its components removed.

[0019] Figure 5 This is a schematic diagram of the first heat insulation component in different directions.

[0020] Figure 6 and Figure 7 This is a schematic diagram of the second and third heat insulation components in different directions.

[0021] Figure 8 This is an exploded structural diagram of the S-shaped heat-conducting component, the first heat-insulating component, the second heat-insulating component, and the third heat-insulating component.

[0022] Figure 9 This is an exploded view of a hair curler.

[0023] The components include: a first handle housing 1; a second handle housing 2; an S-shaped heat-conducting component 3; a first arc-shaped portion 301; a second arc-shaped portion 302; a third protrusion 303; a second slot 304; a third slot 305; a fourth slot 306; a partition 307; a first heat-insulating component 4; a groove 401; a connecting portion 402; a reinforcing rib 403; a first protrusion 404; a second protrusion 405; a second heat-insulating component 5; a third heat-insulating component 6; a perforation 601; an insert 7; a groove 8; a heat-insulating block 9; a heating element 10; a heat-conducting bracket 11; a first cover plate 12; a PCBA board 13; a button 14; a speaker 15; a button mounting hole 16; a light shield 17; a lamp cover 18; and a fourth protrusion 19. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0025] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] This utility model specifically provides an embodiment of a hair curler, see [link / reference]. Figure 1-3 The device includes two handle housings that are movably connected, for example, by hinge. In this embodiment, the two handle housings are a first handle housing 1 and a second handle housing 2. S-shaped heat-conducting elements 3 are respectively provided on both handle housings, that is, S-shaped heat-conducting elements 3 are provided on both the first handle housing 1 and the second handle housing 2. When the two handle housings are closed, the S-shaped heat-conducting elements 3 on the two handle housings interlock to clamp the hair. Each S-shaped heat-conducting element 3 has a recessed first arc-shaped portion 301 and a protruding second arc-shaped portion 302 relative to the corresponding handle housing. One end of the first arc-shaped portion 301 is connected to one end of the second arc-shaped portion 302, and the other end of the first arc-shaped portion 301 is located inside the handle housing and has a gap from the opening end face of the corresponding side of the handle housing. When the two handle housings are closed, the second arc-shaped portion 302 of the S-shaped heat-conducting element 3 on the second handle housing 2 is embedded in the first handle housing. The first arc-shaped portion 301 of the S-shaped heat-conducting element 3 on the first handle housing 1 is embedded in the first arc-shaped portion 301 of the S-shaped heat-conducting element 3 on the second handle housing 2. This arrangement enables the S-shaped heat-conducting elements 3 on the two handle housings to interlock and clamp the hair. In addition, the other end of the first arc-shaped portion 301 of the S-shaped heat-conducting element 3 is the free end of the first arc-shaped portion 301. The free end of the first arc-shaped portion 301 of the S-shaped heat-conducting element 3 on the first handle housing 1 is spaced from the opening end face on the corresponding side of the first handle housing 1. The free end of the first arc-shaped portion 301 of the S-shaped heat-conducting element 3 on the second handle housing 2 is also spaced from the opening end face on the corresponding side of the second handle housing 2. This ensures that the hair on both sides of the S-shaped heat-conducting element 3 is not heated and therefore cannot be shaped, thus preventing creases from forming on the wavy hair.

[0028] In this embodiment, when using the curling iron, the user first opens the first handle housing 1 and the second handle housing 2, then places a portion of a single strand of hair between the two S-shaped heat-conducting elements 3. The user then closes the first handle housing 1 and the second handle housing 2. Through heating and the shape of the S-shaped heat-conducting elements 3, waves are formed on the hair strands. Repeating this operation completes the curling of a single strand of hair. Because the free end of the first arc-shaped portion 301 of the curling iron is located inside the corresponding handle housing, and there is a gap between the free end inside the corresponding handle housing and the opening end face on the corresponding side of the handle housing, when the two handle housings are closed, the hair on both sides of the S-shaped heat-conducting elements 3 is not heated and therefore cannot be shaped. This prevents creases from forming on the wavy hair, allowing for a smooth connection between the waves formed in the two curling operations, resulting in a natural curling style.

[0029] In the preferred embodiment, see Figure 2 The distance D from the free end of the first arc-shaped portion 301 to the opening end face on the corresponding side of the handle housing is ≥3mm, and can be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, or 10mm, etc. Specifically, the distance D from the free end of the first arc-shaped portion 301 of the S-shaped heat-conducting element 3 in the first handle housing 1 to the opening end face on the corresponding side of the first handle housing 1 is ≥3mm, and the distance D from the free end of the first arc-shaped portion 301 of the S-shaped heat-conducting element 3 in the second handle housing 2 to the opening end face on the corresponding side of the second handle housing 2 is ≥3mm. This effectively ensures that the hair strands located on both sides of the S-shaped heat-conducting element 3 are not heated, and therefore cannot be shaped, thus preventing creases from forming on the hair strands.

[0030] In the preferred embodiment, see Figure 4 The length of the side wall of the handle housing is not less than the length of the S-shaped heat conductor 3. Specifically, the length of the side wall of the first handle housing 1 is not less than the length of the S-shaped heat conductor 3 therein, and the length of the side wall of the second handle housing 2 is not less than the length of the S-shaped heat conductor 3 therein. Through this structure and the aforementioned distance D, the hair strands on both sides of the S-shaped heat conductor 3 are more effectively prevented from being heated, thus avoiding the formation of creases on the hair strands.

[0031] In the preferred embodiment, see Figure 2After the two handle housings are closed, there is a gap between the open end faces of the two handle housings. The gap between the open end faces of the two handle housings is d. By setting the gap between the two handle housings in combination with the aforementioned length relationship between the handle housings and the S-shaped heat conductor 3, and the distance D between the free end of the first arc-shaped part 301 and the corresponding side opening face of the handle housing, it is further effectively ensured that the hair strands on both sides of the S-shaped heat conductor 3 are not heated, effectively avoiding the formation of creases on the hair strands.

[0032] In the preferred embodiment, see Figure 1-5 A first heat insulation component 4 is provided between the S-shaped heat-conducting element 3 and the corresponding handle housing. The first heat insulation component 4 includes a groove 401 for accommodating the first arc-shaped portion 301 of the S-shaped heat-conducting element 3 and a connecting portion 402 for connecting with the S-shaped heat-conducting element 3. The connecting portion 402 is arranged opposite to the second arc-shaped portion 302 of the S-shaped heat-conducting element 3. Specifically, a first heat insulation component 4 is provided between the first handle housing 1 and the S-shaped heat-conducting element 3 inside it, and a first heat insulation component 4 is also provided between the second handle housing 2 and the S-shaped heat-conducting element 3 inside it. By providing the first heat insulation component 4, heat can be prevented from being transferred to the handle housing and accidentally scalding the user. Reinforcing ribs 403 are respectively provided in the groove 401 of the first heat insulation component 4 and on the side of the connecting portion 402 facing away from the groove 401 to increase the strength of the first heat insulation component 4. In addition, a first protrusion 404 and a second protrusion 405 are respectively provided on the two side walls of the connecting part 402 of the first heat insulation member 4. The first protrusion 404 is spaced apart from the bottom surface of the connecting part 402 to form a first slot. A third protrusion 303 and a second slot 304 are provided on the side of the S-shaped heat conductor 3 facing the first heat insulation member 4. The third protrusion 303 is inserted into the first slot, and the second protrusion 405 is inserted into the second slot 304, thereby realizing the connection between the first heat insulation member 4 and the corresponding S-shaped heat conductor 3.

[0033] In the preferred embodiment, see Figure 3 and Figure 6-8A second heat insulation element 5 and a third heat insulation element 6 are respectively provided at both ends of the S-shaped heat-conducting element 3 along its length. After the two handle housings are closed, the two second heat insulation elements 5 at the same end of the two S-shaped heat-conducting elements 3 are fitted together, and the two third heat insulation elements 6 at the same end are fitted together. Specifically, the two ends of the S-shaped heat-conducting element 3 in the first handle housing 1 are respectively provided with a second heat insulation element 5 and a third heat insulation element 6 along its length, and the two ends of the S-shaped heat-conducting element 3 in the second handle housing 2 are also respectively provided with a second heat insulation element 5 and a third heat insulation element 6 along its length. When the first handle housing 1 and the second handle housing 2 are closed, the two second heat insulation elements 5 at the same end are fitted together, and at the same time, the two third heat insulation elements 6 at the same end are fitted together. The edges of the second heat insulation element 5 and the third heat insulation element 6 are S-shaped, and the two second heat insulation elements 5 at the same end are centrally symmetrical, as are the two third heat insulation elements 6 at the same end. This facilitates the interlocking of the two second heat insulation elements 5 and the two third heat insulation elements 6 at the same end. S-shaped fourth protrusions 19 are respectively provided on the side of the second heat insulation element 5 facing the S-shaped heat conductor 3 and on the side of the third heat insulation element 6 facing the S-shaped heat conductor 3. The curvature of the fourth protrusion 19 matches the shape of the S-shaped heat conductor 3, thus supporting the S-shaped heat conductor 3 together through the second heat insulation element 5 and the third heat insulation element 6. Insert blocks 7 are provided on both sides of the second heat insulation member 5 and both sides of the third heat insulation member 6. A third slot 305 is provided on the outer side wall of the first arc portion 301 of the S-shaped heat conductor 3, and a fourth slot 306 is provided on the inner side wall of the second arc portion 302 of the S-shaped heat conductor 3. The insert blocks 7 on both sides of the second heat insulation member 5 are inserted into the slots on the corresponding sides, and the insert blocks 7 on both sides of the third heat insulation member 6 are also inserted into the slots on the corresponding sides, so as to realize the connection between the S-shaped heat conductor 3 and the second heat insulation member 5 and the third heat insulation member 6. A through hole 601 for the wire of the heating element 10 to pass through is also provided on the third heat insulation member 6.

[0034] In a preferred embodiment, a groove 8 is provided on the side of the handle housing facing away from the S-shaped heat-conducting element 3. A heat dissipation hole is provided in the groove 8, and a heat insulation block 9 is provided at the opening of the groove 8 to cover the opening of the groove 8. A heat dissipation gap is provided between the heat insulation block 9 and the groove 8. The heat insulation block 9 is provided to prevent hot air flowing out of the heat dissipation hole from scalding the user.

[0035] In the preferred embodiment, see Figure 2 A partition 307 is provided within the second arcuate portion 302 of the S-shaped heat-conducting component 3. The partition 307 and the second arcuate portion 302 form an installation space for mounting the heating component. The heating component includes a heating element 10 and two heat-conducting supports 11, which are spaced apart within the installation space. The heating element 10 is positioned between the two heat-conducting supports 11. By placing the heating component on the surface of the second arcuate portion 302 adjacent to the hair strands, the hair strands can be heated and shaped more effectively.

[0036] In this embodiment, see Figure 9 A first cover plate 12 is disposed inside one of the handle housings. In this embodiment, the first cover plate 12 is disposed inside the first handle housing 1. A PCBA board 13 is disposed between the first cover plate 12 and the corresponding handle housing. A button 14, a speaker 15, and / or LED lights are electrically connected to the PCBA board 13. The heating element 10 is electrically connected to the PCBA board 13. The button 14 includes a heating element and a cooling element, allowing the user to adjust the temperature setting. The speaker 15 announces the current temperature setting. When the handle housing is closed for a predetermined time, it prompts the user that the time for clamping the hair has elapsed, thus preventing problems such as insufficient clamping time leading to poor shaping effect or damage to the hair during clamping. There can be multiple LED lights, and the number of LED lights illuminated allows the user to determine the current temperature setting. In this embodiment, the PCBA board 13 is a heating control board, which is prior art in this field.

[0037] In this embodiment, see Figure 9 When a button 14 is electrically connected to the PCBA board 13, a button mounting hole 16 is provided on the side wall of the first cover plate 12 to expose the button 14, so that the user can contact the button 14. When an LED light is electrically connected to the PCBA board 13, a light-shielding cover 17 that can transmit light is provided on the LED light, and a light-transmitting lamp cover 18 is provided on the light-shielding cover 17. A lamp cover mounting hole for exposing the lamp cover 18 is provided on the handle housing so that the user can observe the status of the LED light. The light-shielding cover 17 can concentrate the diffused light and soften the brightness. This is related to the material of the light-shielding cover 17, and the material that can concentrate the light of the LED light and soften the brightness is existing technology. In addition, by providing the lamp cover 18, the internal electronic components can be effectively protected and dust, dirt, and liquid can be prevented from entering, while the LED light can be made visible.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A hair curler, comprising two handle housings movably connected to each other, each handle housing having an S-shaped heat-conducting element disposed thereon, wherein when the two handle housings are closed, the S-shaped heat-conducting elements on the two handle housings interlock to clamp hair strands; each S-shaped heat-conducting element having a recessed first arcuate portion and a protruding second arcuate portion relative to the corresponding handle housing, one end of the first arcuate portion being connected to one end of the second arcuate portion, characterized in that: The free end of the first arc-shaped part is located inside the handle housing and has a gap with the opening end face on the corresponding side of the handle housing.

2. The curling iron according to claim 1, characterized in that: The distance D from the free end of the first arc-shaped part to the opening end face on the corresponding side of the handle housing is ≥3mm.

3. The curling iron according to claim 1 or 2, characterized in that: The length of the side wall of the handle housing is not less than the length of the S-shaped heat-conducting component.

4. The curling iron according to claim 1 or 2, characterized in that: After the two handle housings are closed, there is a gap between the open end faces of the two handle housings.

5. The curling iron according to claim 1 or 2, characterized in that: A first heat insulation component is provided between the S-shaped heat conductor and the corresponding handle housing. The first heat insulation component includes a groove for accommodating the first arc-shaped portion of the S-shaped heat conductor and a connecting portion for connecting with the S-shaped heat conductor. The connecting portion is arranged opposite to the second arc-shaped portion of the S-shaped heat conductor.

6. The curling iron according to claim 1, characterized in that: A second heat insulation component and a third heat insulation component are respectively provided at both ends of the S-shaped heat conductor along its length; after the two handle housings are closed, the two second heat insulation components at the same end of the two S-shaped heat conductors are fitted together and the two third heat insulation components at the same end are fitted together.

7. The curling iron according to claim 1, characterized in that: A groove is provided on the side of the handle housing away from the S-shaped heat conductor. A heat dissipation hole is provided in the groove. A heat insulation block is provided at the opening of the groove to cover the opening of the groove. There is a heat dissipation gap between the heat insulation block and the groove.

8. The curling iron according to claim 1 or 2, characterized in that: A partition is provided in the second arc-shaped part of the S-shaped heat-conducting component. The partition and the second arc-shaped part form an installation space for installing the heating element. The heating element includes a heating element and two heat-conducting brackets. The two heat-conducting brackets are arranged at intervals in the installation space, and the heating element is disposed between the two heat-conducting brackets.

9. The curling iron according to claim 8, characterized in that: A first cover plate is provided inside one of the handle housings, and a PCBA board is provided between the first cover plate and the corresponding handle housing. Buttons, a horn and / or an LED light are electrically connected to the PCBA board, and a heating element is electrically connected to the PCBA board.

10. The hair curler according to claim 9, characterized in that: When a button is electrically connected to the PCBA board, a button mounting hole for exposing the button is provided on the side wall of the first cover plate. Alternatively, when an LED light is electrically connected to the PCBA board, the LED light is covered with a light-shielding cover that allows light to pass through, and a light-shielding lamp cover is provided on the light-shielding cover. A lamp cover mounting hole is provided on the handle housing to expose the lamp cover.

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