Straightener and curler

Abstract

This utility model relates to the field of hair styling device technology, and in particular to a straightener / curler hair stylist, comprising an upper handle, a lower handle, and a heating element. The heating element includes a heating aluminum plate, a heating element disposed inside the heating aluminum plate, end caps disposed at the front and rear ends of the heating aluminum plate, and a mounting shaft disposed on the end caps. The mounting shaft is made of wear-resistant material, and the end caps are integrally molded from heat-insulating plastic material and the mounting shaft. The heating aluminum plate is rotatably mounted on the upper and lower handles via the mounting shaft. Compared with the prior art, by using a mounting shaft made of wear-resistant material and end caps made of heat-insulating plastic material, the heat loss of the heating aluminum plate can be reduced by the end caps, and the wear resistance of the mounting shaft can be improved. Even after long-term use, the gap between the mounting shaft and the corresponding holes will not increase, thus ensuring that the heating element does not wobble when switching between horizontal and vertical states, thereby improving its reliability.

Description

Technical Field

[0001] This utility model relates to the field of hair styling device technology, and in particular to a hair styling tool that can be used for both straightening and curling. Background Technology

[0002] In related technologies, straighteners and curlers typically have end caps installed at both ends of the heating element, with a rotating shaft on each end cap. The upper and lower handles are rotatably mounted via the rotating shaft, and driving the shaft switches the heating element between horizontal and vertical positions. Currently, the end caps and rotating shaft are usually injection molded from the same plastic material. However, in actual lifespan tests, the inventors found that the rotating shaft wears down after a certain number of rotations. This wear creates a large gap between the rotating shaft and its corresponding hole, causing the heating element to frequently wobble during the switching between horizontal and vertical positions, resulting in poor reliability. Furthermore, once the wear of the rotating shaft reaches a critical point, it can break, further limiting its lifespan.

[0003] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a hair straightener and curler that can be used in both directions. This effectively solves the technical defect in the existing hair straightener and curler where the rotating shaft used to switch the heating element to a horizontal or vertical state is prone to wear, thereby improving the reliability and service life of the hair straightener and curler.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a straightener and curler hair styling tool, comprising an upper handle and a lower handle hinged together at their ends, wherein heating elements are rotatably mounted on opposite sides of the front ends of both the upper and lower handles.

[0006] The heating element includes a heating aluminum plate, a heating element disposed inside the heating aluminum plate, end caps disposed at the front and rear ends of the heating aluminum plate, and a mounting shaft disposed on the end caps. The mounting shaft is made of wear-resistant material, and the end caps are integrally molded with the mounting shaft using plastic heat insulation material. The heating aluminum plate can be rotatably mounted on the upper handle and the lower handle via the mounting shaft, and the second axis of the mounting shaft is not coaxial with the first axis of the upper handle and the lower handle.

[0007] The beneficial effect of the straightener / curler hair styling tool provided in this application is that, compared with existing technologies,

[0008] Firstly, by setting a mounting shaft made of wear-resistant material and an end cap made of heat-insulating plastic material, the heat loss of the heating aluminum plate can be reduced by the end cap, and the wear resistance of the mounting shaft can be improved. Even after long-term use, the gap between the mounting shaft and the corresponding hole will not increase, thereby ensuring that the heating component will not shake when switching between horizontal and vertical states, thus improving its reliability.

[0009] Secondly, because the mounting shaft is made of wear-resistant material, its wear resistance is far superior to that of the plastic mounting shaft used in traditional technology, which can further extend the service life of the mounting shaft, thus extending the service life of the hair styling tool as well.

[0010] Thirdly, the mounting shaft and end cover are integrally molded using die-casting, which improves the overall connection rigidity and makes it less likely for the mounting shaft and end cover to detach, thereby further improving its reliability and service life.

[0011] As a preferred option, the plastic insulation material of the end cap is any one of polypropylene, foamed polypropylene, or polycarbonate, and the wear-resistant material of the mounting shaft is any one of metal or ceramic.

[0012] As a preferred embodiment, the heating element includes an upper heating element rotatably mounted on the upper handle and a lower heating element rotatably mounted on the lower handle;

[0013] After the mounting shaft of the upper heating element is installed on the upper handle, the second axis of the mounting shaft of the upper heating element is located to the left of the first axis of the upper handle;

[0014] After the mounting shaft of the lower heating element is installed on the lower handle, the second axis of the mounting shaft of the lower heating element is located to the right of the first axis of the lower handle.

[0015] As a preferred embodiment, mounting positions are provided at the bottom front end of the upper handle and the top front end of the lower handle, and the upper heating element and the lower heating element can be rotatably mounted in the mounting positions via a pivot.

[0016] As a preferred embodiment, the mounting shaft includes a first shaft integrally formed on the front end cap of the heating aluminum plate and a second shaft integrally formed on the rear end cap of the heating aluminum plate, wherein the first shaft and the second shaft are coaxially arranged.

[0017] The first shaft and / or the second shaft are provided with wire-passing holes, which can pass through the front and rear surfaces of the first shaft and / or the second shaft and be electrically connected to the interior of the heating aluminum plate.

[0018] As a preferred embodiment, the cross-section of the first shaft is circular, and the circumferential side of the first shaft is provided with at least two limiting parts, which are arranged at a circumferential distance.

[0019] Both the upper and lower handles have a limiting structure at their front ends. The limiting structure can work with a limiting part to control the horizontal or vertical state of the heating aluminum plate.

[0020] As a preferred embodiment, the limiting part is a limiting recess;

[0021] The limiting structure includes a spring fixedly installed at one end on the upper handle and the lower handle, and a limiting post fixedly installed at the other end of the spring. The spring can provide an elastic force for the limiting post to insert into the limiting recess.

[0022] As a preferred embodiment, the cross-section of the second shaft is circular, and the peripheral surface of the second shaft is provided with a first drive tooth;

[0023] The upper and lower handles are rotatably mounted with drive rods. One end of the drive rod is pivotally connected to a first connector. The first connector is movably mounted with a second connector. The second connector has a first transmission tooth on its periphery that can mesh with the first drive tooth.

[0024] As a preferred embodiment, it also includes a fixed base, and the second connector is rotatably mounted on the second fixed base; the first connector is provided with a first sliding protrusion, and the second connector is provided with a first sliding groove, the first sliding protrusion being movably mounted in the first sliding groove.

[0025] As a preferred embodiment, a drive housing is rotatably mounted at the ends of the upper and lower handles, and an arc-shaped drive rack is mounted on the inner side of the drive housing.

[0026] The other end of the drive rod is provided with a second transmission tooth, which can mesh with the arc-shaped drive rack. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of the straightener / curler hair styling tool provided in this application embodiment in straightening mode;

[0029] Figure 2 This is a three-dimensional structural diagram of the straightener / curler hair stylist provided in this application embodiment in curling mode;

[0030] Figure 3 yes Figure 1 An exploded view of the straightener / curler hair styling tool shown;

[0031] Figure 4 yes Figure 3 An exploded view of the partial structure of the straightener / curler hair styling tool shown.

[0032] Figure 5 yes Figure 1 A partial cross-sectional view of the lower handle of the straightener / curler hair stylist shown.

[0033] Figure 6 yes Figure 2 A partial cross-sectional view of the lower handle of the straightener / curler hair stylist shown.

[0034] Figure 7 yes Figure 1 A partial cross-sectional view of the front end of the lower handle of the straightener / curler hair stylist shown.

[0035] Figure 8 yes Figure 1 The diagram shows a partial structure of the straightener / curler hair styling tool.

[0036] The following are the labeling elements in the figure:

[0037] 10. Hair straightener and curler combo tool;

[0038] 101. Upper handle; 102. Lower handle; 103. Mounting position; 104. Spring; 105. Limiting post; 106. Drive rod; 1061. Second transmission gear; 107. First connecting piece; 1071. First sliding protrusion; 108. Second connecting piece; 1081. First transmission gear; 1082. First sliding groove; 109. Fixing seat; 1011. Drive housing; 1012. Arc-shaped drive rack; 1101. Upper heating element; 1102. Lower heating element; 11. Heating aluminum plate; 12. End cap; 13. Mounting shaft; 131. First shaft body; 1311. Limiting recess; 132. Second shaft body; 1321. First drive gear; 133. Wire hole; a1. First axis; a2. Second axis. Detailed Implementation

[0039] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0041] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0044] Please refer to the following: Figures 1 to 8 The present application will now describe the straightener / curler hair stylist 10 provided in the embodiments of this application. The straightener / curler hair stylist 10 includes: an upper handle 101, a lower handle 102, and a heating element.

[0045] The ends of the upper handle 101 and the lower handle 102 are hinged together, and the heating components are rotatably mounted on opposite sides of the front ends of the upper handle 101 and the lower handle 102, respectively. The heating components include a heating aluminum plate 11, a heating element disposed inside the heating aluminum plate 11, end caps 12 disposed at the front and rear ends of the heating aluminum plate 11, and a mounting shaft 13 disposed on the end caps 12. The mounting shaft 13 is made of wear-resistant material, and the end caps 12 are integrally molded with the mounting shaft 13 using plastic heat insulation material. The heating aluminum plate 11 is rotatably mounted on the upper handle 101 and the lower handle 102 via the mounting shaft 13, and the second axis a2 of the mounting shaft 13 is not coaxial with the first axis a1 of the upper handle 101 and the lower handle 102.

[0046] Specifically, compared with the prior art, in the first aspect, by setting the mounting shaft 13 made of wear-resistant material and the end cap 12 made of heat-insulating plastic material, the heat loss of the heating aluminum plate 11 can be reduced by the end cap 12, and the wear resistance of the mounting shaft 13 can be improved. Long-term use will not increase the gap between the mounting shaft 13 and the corresponding hole, thereby ensuring that the heating component will not shake when switching between horizontal and vertical states, thus improving its reliability.

[0047] Secondly, since the mounting shaft 13 is made of wear-resistant material, its wear resistance is much higher than that of the plastic mounting shaft 13 used in traditional technology, which can further extend the service life of the mounting shaft 13, thus extending the service life of the hair styling tool.

[0048] Thirdly, the mounting shaft 13 and the end cover 12 are integrally molded using die-casting, which can improve the overall connection rigidity and prevent the mounting shaft 13 and the end cover 12 from falling off, thereby further improving their reliability and service life.

[0049] In some embodiments, the plastic heat insulation material of the end cap 12 is any one of polypropylene, foamed polypropylene, or polycarbonate, and the wear-resistant material of the mounting shaft 13 is any one of metal or ceramic.

[0050] Specifically, the molding process of the end cap 12 and the mounting shaft 13 is as follows: first, a metal mounting shaft 13 or a ceramic mounting shaft 13 is molded; then, the mounting shaft 13 is fed into an injection mold; molten plastic heat insulation material is injected into the injection mold; the end cap 12 is molded through the injection mold; and the plastic of the end cap 12 and the mounting shaft 13 are molded into an integral structure.

[0051] It should be noted that injection molding is a well-known process in the field of mold injection molding. It is a form of insert injection molding. Its principle is to first fix the pre-formed insert in the mold, and then inject plastic, so that the plastic and the insert are bonded and solidified in the mold to form an integrated product.

[0052] In other embodiments, the heating assembly includes an upper heating assembly 1101 rotatably mounted on the upper handle 101 and a lower heating assembly 1102 rotatably mounted on the lower handle 102; after the mounting shaft 13 of the upper heating assembly 1101 is mounted on the upper handle 101, the second axis a2 of the mounting shaft 13 of the upper heating assembly 1101 is located to the left of the first axis a1 of the upper handle 101; after the mounting shaft 13 of the lower heating assembly 1102 is mounted on the lower handle 102, the second axis a2 of the mounting shaft 13 of the lower heating assembly 1102 is located to the right of the first axis a1 of the lower handle 102.

[0053] Specifically, the bottom front end of the upper handle 101 and the top front end of the lower handle 102 are provided with mounting positions 103. The front and rear sides of the mounting positions 103 are provided with holes for the mounting shaft 13 to be rotatably inserted, so that the upper heating component 1101 and the lower heating component 1102 can be rotatably installed in the mounting positions 103 via the rotating shaft. When the straightener / curler 10 is in straightening mode, the upper heating element 1101 and the lower heating element 1102 are spaced vertically. Closing the upper handle 101 and the lower handle 102 allows the heating aluminum plates 11 of the upper heating element 1101 and the lower heating element 1102 to clamp the hair and pull it along the direction of hair extension to straighten the hair. When the straightener / curler 10 is in curling mode, the upper heating element 1101 and the lower heating element 1102 are spaced horizontally. Placing the hair on the upper heating element 1101 and the lower heating element 1102 with the horizontal spacing and closing the upper handle 101 and the lower handle 102 allows the heating aluminum plates 11 of the upper heating element 1101 and the lower heating element 1102 to curl the hair.

[0054] It is understandable that when the upper heating component 1101 and the lower heating component 1102 are in the straight hair mode, the upper heating component 1101 and the lower heating component 1102 are placed horizontally in the mounting position 103; when the upper heating component 1101 (heating aluminum plate 11) and the lower heating component 1102 (heating aluminum plate 11) are in the curling mode, the upper heating component 1101 (heating aluminum plate 11) and the lower heating component 1102 (heating aluminum plate 11) are set vertically and spaced apart left and right. At this time, the bottom of the heating aluminum plate 11 of the upper heating component 1101 can be inserted into the mounting position 103 of the lower handle 102, and the top of the lower heating aluminum plate 11 can be inserted into the mounting position 103 of the upper handle 101. Furthermore, the mounting shaft 13 is positioned such that the mounting shaft 13 of the upper heating component 1101 is located on the left side of the end cover 12, and the mounting shaft 13 of the lower heating component 1102 is located on the right side of the end cover 12. This facilitates control of the upper heating component 1101 to swing downwards with the mounting shaft 13 as the rotation center, and the lower heating component 1102 to swing upwards with the mounting shaft 13 as the center, thereby setting the left and right distance between the upper heating component 1101 and the lower heating component 1102.

[0055] In other embodiments, the mounting shaft 13 includes a first shaft 131 integrally formed on the front end cap 12 of the heating aluminum plate 11 and a second shaft 132 integrally formed on the rear end cap 12 of the heating aluminum plate 11. The first shaft 131 and the second shaft 132 are coaxially arranged. The first shaft 131 and / or the second shaft 132 are provided with wire holes 133, which can pass through the front and rear surfaces of the first shaft 131 and / or the second shaft 132 and be electrically connected to the interior of the heating aluminum plate 11. Through the wire holes 133, the heating element inside the heating aluminum plate 11 can be wired to the circuit board of the hair stylist, thereby controlling the working state of the heating element through the control unit of the hair stylist. At the same time, the wire holes 133 on the first shaft 131 and the second shaft 132 ensure that the position of the cable will not change even when the upper heating component 1101 and the lower heating component 1102 rotate, thereby improving the reliability and service life of the cable wiring.

[0056] Specifically, the cross-section of the first shaft 131 is circular, and at least two limiting parts are provided on the circumferential side of the first shaft 131. The two limiting parts are arranged at a circumferential distance. The front ends of the upper handle 101 and the lower handle 102 are both provided with limiting structures. The limiting structures can cooperate with a limiting part to control the horizontal or vertical state of the heating aluminum plate 11.

[0057] For example, the limiting part is the limiting recess 1311; the limiting structure includes a spring 104 fixedly installed at one end on the upper handle 101 and the lower handle 102, and a limiting post 105 fixedly installed at the other end of the spring 104. The spring 104 can provide the limiting post 105 with an elastic force for insertion into the limiting recess 1311.

[0058] In addition, the limiting structure can use spring clips. By simply inserting spring clips into different limiting recesses 1311, the heating aluminum plate 11 can also be controlled to be in a horizontal or vertical state.

[0059] Specifically, the angle between the two limiting recesses 1311 along the circumferential distance of the first axis 131 is 90 degrees. The first limiting recess 1311 is defined as being at 0 degrees, and the second limiting recess 1311 is defined as being at 90 degrees. When the limiting post 105 is inserted into the limiting recess 1311 at 0 degrees, the heating component can be controlled to be set horizontally. When the limiting post 105 is inserted into the limiting recess 1311 at 90 degrees, the heating component can be controlled to be set vertically.

[0060] In addition, the limiting part can be a first limiting plane and a second limiting plane, with the second limiting plane perpendicular to the first limiting plane, so that the first limiting plane and the second limiting plane are at 90 degrees; when the limiting structure abuts against the first limiting plane, it can control the heating aluminum plate to be in a horizontal state, i.e., straight hair mode; when the limiting structure abuts against the second limiting plane, it can control the heating aluminum plate to be in a vertical state, i.e., curly hair mode.

[0061] In other embodiments, the cross-section of the second shaft 132 is circular, and the peripheral side of the second shaft 132 is provided with a first drive tooth 1321; the upper handle 101 and the lower handle 102 are rotatably mounted with a drive rod 106, one end of the drive rod 106 is pivotally connected to a first connector 107, the first connector 107 is movably mounted with a second connector 108, and the peripheral side of the second connector 108 is provided with a first transmission tooth 1081 that can mesh with the first drive tooth 1321.

[0062] Furthermore, the upper handle 101 and the lower handle 102 are equipped with a fixing seat 109, which is located behind the mounting position 103. The second connector 108 is rotatably mounted on the second fixing seat 109. The first connector 107 is provided with a first sliding protrusion 1071, and the second connector 108 is provided with a first sliding groove 1082. The first sliding protrusion 1071 can be movably mounted in the first sliding groove 1082. Since the first connector 107 is pivotally connected to the drive rod 106, and the first connector 107 and the second connector 108 are connected by the first sliding protrusion 1071 and the first sliding groove 1082, the drive rod 106 and the second shaft 132 are floatingly connected. This structure not only improves the ease of assembly of the drive rod 106 and the mounting shaft 13, but also prevents jamming.

[0063] More specifically, a drive housing 1011 is rotatably mounted at the ends of the upper handle 101 and the lower handle 102, and an arc-shaped drive rack 1012 is mounted on the inner side of the drive housing 1011; the other end of the drive rod 106 is provided with a second transmission tooth 1061, which can mesh with the arc-shaped drive rack 1012. In actual use, the drive housing 1011 can be rotated, and the arc-shaped drive rack 1012 meshes with the second transmission tooth 1061 to rotate the drive rod 106, which in turn drives the second shaft 132 to rotate through the first connecting member 107 and the second connecting member 108, thereby enabling the heating component to rotate.

[0064] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A hair straightener / curler combo tool, comprising an upper handle (101) and a lower handle (102) hinged together at their ends, wherein heating elements are rotatably mounted on opposite sides of the front ends of the upper handle (101) and the lower handle (102). Its features are, The heating component includes a heating aluminum plate (11), a heating element disposed inside the heating aluminum plate (11), end caps (12) disposed at the front and rear ends of the heating aluminum plate (11), and a mounting shaft (13) disposed on the end caps (12). The mounting shaft (13) is made of wear-resistant material, and the end caps (12) are integrally molded with the mounting shaft (13) using plastic heat insulation material. The heating aluminum plate (11) can be rotatably mounted on the upper handle (101) and the lower handle (102) via the mounting shaft (13), and the second axis (a2) of the mounting shaft (13) is not coaxial with the first axis (a1) of the upper handle (101) and the lower handle (102).

2. The straightener / curler hair styling tool according to claim 1, characterized in that, The plastic heat insulation material of the end cap (12) is any one of polypropylene, foamed polypropylene or polycarbonate, and the wear-resistant material of the mounting shaft (13) is any one of metal or ceramic.

3. The straightener / curler hair styling tool according to claim 1 or 2, characterized in that, The heating components include an upper heating component (1101) rotatably mounted on the upper handle (101) and a lower heating component (1102) rotatably mounted on the lower handle (102). After the mounting shaft (13) of the upper heating element (1101) is installed on the upper handle (101), the second axis (a2) of the mounting shaft (13) of the upper heating element (1101) is located to the left of the first axis (a1) of the upper handle (101); After the mounting shaft (13) of the lower heating assembly (1102) is installed on the lower handle (102), the second axis (a2) of the mounting shaft (13) of the lower heating assembly (1102) is located to the right of the first axis (a1) of the lower handle (102).

4. The straightener / curler hair styling tool according to claim 3, characterized in that, The upper handle (101) has a mounting position (103) at the bottom front end and the lower handle (102) has a mounting position (103) at the top front end. The upper heating element (1101) and the lower heating element (1102) can be rotatably installed in the mounting position (103) via a rotating shaft.

5. The straightener / curler hair styling tool according to claim 1, 2, or 4, characterized in that, The mounting shaft (13) includes a first shaft (131) integrally formed on the front end cap (12) of the heating aluminum plate (11) and a second shaft (132) integrally formed on the rear end cap (12) of the heating aluminum plate (11). The first shaft (131) and the second shaft (132) are coaxially arranged. The first shaft (131) and / or the second shaft (132) are provided with wire holes (133), which can pass through the front and rear surfaces of the first shaft (131) and / or the second shaft (132) and be connected to the interior of the heating aluminum plate (11).

6. The straightener / curler hair styling tool according to claim 5, characterized in that, The cross-section of the first shaft (131) is circular, and the peripheral side of the first shaft (131) is provided with at least two limiting parts, which are arranged at a distance along its circumference. The front ends of the upper handle (101) and the lower handle (102) are provided with limiting structures. The limiting structures can cooperate with a limiting part to control the horizontal or vertical state of the heating aluminum plate (11).

7. The straightener / curler hair styling tool according to claim 6, characterized in that, The limiting part is a limiting recess (1311). The limiting structure includes a spring (104) fixedly installed at one end on the upper handle (101) and the lower handle (102) and a limiting post (105) fixedly installed at the other end of the spring (104). The spring (104) can provide the limiting post (105) with an elastic force to insert into the limiting recess (1311).

8. The straightener / curler hair styling tool according to claim 5, characterized in that, The cross-section of the second shaft (132) is circular, and the circumferential side of the second shaft (132) is provided with a first drive tooth (1321). The upper handle (101) and the lower handle (102) are rotatably mounted with a drive rod (106). One end of the drive rod (106) is pivotally connected to a first connector (107). The first connector (107) is movably mounted with a second connector (108). The second connector (108) is provided with a first transmission tooth (1081) on its periphery that can mesh with the first drive tooth (1321).

9. The straightener / curler hair styling tool according to claim 8, characterized in that, It also includes a fixed base (109), and a second connector (108) is rotatably mounted on the second fixed base (109); the first connector (107) is provided with a first sliding protrusion (1071), and the second connector (108) is provided with a first sliding groove (1082), and the first sliding protrusion (1071) can be movably mounted in the first sliding groove (1082).

10. The straightener / curler hair styling tool according to claim 8 or 9, characterized in that, The upper handle (101) and the lower handle (102) are rotatably mounted with a drive housing (1011), and an arc-shaped drive rack (1012) is mounted on the inner side of the drive housing (1011). The other end of the drive rod (106) is provided with a second transmission tooth (1061), which can mesh with the arc-shaped drive rack (1012).

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