Straight hair curling device

Abstract

The utility model relates to the technical field of hairdressing devices, in particular to a straight hair curling device. Comprising two handles which are pivoted together, and the opposite sides of the two handles are hair clamping surfaces; any handle is movably provided with a first heating piece and an executing mechanism used for driving the first heating piece to move, the executing mechanism comprises an adjusting piece movably installed on the handle and a limiting part, and the adjusting piece can act on the first heating piece to move to stretch out of or retract into the hair clamping face when moving. When the adjusting piece or the first heating piece moves, the limiting part can act to move so as to limit the opening and closing angle of the two handles to obtain the hair clamping gap. Compared with the prior art, when a user curls hair, the two handles can be controlled to keep the hair clamping gap all the time, and the hair clamping face is prevented from pressing the hair straightly during hair curling; according to the hair curler, the difficulty of curly hair modeling of a user can be reduced, the curly hair modeling effect can be improved, and the user can conveniently model coherent wave-shaped hair.

Description

Technical Field

[0001] The utility model relates to the technical field of hairdressing devices, in particular to a hair straightening and curling device. Background Art

[0002] Hair curlers are widely used in daily life. Most existing hair curlers only produce one type of curling effect. To achieve a variety of curling effects, some hair curlers are equipped with a lifting mechanism that drives the heating element toward or away from the housing, thereby changing the height of the heating element and achieving curling effects of different sizes.

[0003] For example, Chinese utility model CN220694599U discloses a hair straightener. When it is necessary to straighten the hair, the second heating element is controlled to retract to the first position, and the highest point of the second heating surface is lower than or flush with the first heating plane in the same clamping plate, so that when the two clamping plates are closed, the first heating plane arranged opposite to each other can clamp the hair to achieve straightening; when it is necessary to curl the hair, the second heating element is controlled to extend to the second position, and the highest point of the second heating surface is higher than the first heating plane in the same clamping plate. When the two clamping plates are closed, the first heating plane arranged opposite to each other can clamp the hair, and at the same time, the hair is wrapped around the second heating surface of the second heating element. Since the second heating surface is higher than the first heating plane in the same clamping plate, a bend will be formed at the connection between the first heating plane and the second heating surface. At the same time, the hair wrapped around the second heating surface will have a shape similar to the second heating surface, forming curls.

[0004] During the actual research and development process, the inventor discovered that although this type of hair straightener can adjust the upper and lower positions of the second heating element to style hair with different curvatures, when the two clamps are closed, the first heating elements of the clamps will press the hair straight, resulting in the hair being in both curly and straight modes simultaneously during the curling process. The resulting hair will have a section of straight hair, a section of single-curved curls, and another section of straight hair, making it difficult for users to create wavy hair in a consistent manner. This shows that this type of hair straightener still has the technical drawbacks of being difficult to style wavy hair and having poor styling results.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention aims to address the shortcomings of the prior art, and its main purpose is to provide a hair straightening and curling device that effectively solves the technical defects of the prior art, such as high styling difficulty and poor styling effect.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a hair straightening and curling device comprising two handles pivotally connected to each other, with opposite sides of the handles forming hair clamping surfaces; a first heating element and an actuator for driving the displacement of the first heating element are movably mounted on either handle, the actuator comprising an adjusting member movably mounted on the handle and a limiting portion; movement of the adjusting member can cause the first heating element to extend or retract the hair clamping surface; movement of the adjusting member or the first heating element can cause the limiting portion to move to limit the opening and closing angle of the two handles to obtain a hair clamping gap.

[0008] The hair straightening and curling device provided by the present application has the following advantages: compared with the prior art, by providing an adjusting member and a limiting portion on the handle, when the adjusting member is moved to cause the first heating member to extend the hair clamping surface, the limiting portion can move along with the adjusting member or the first heating member, and the limiting portion is used to lock the opening and closing angles of the two handles to obtain a hair clamping gap; with this structure, when the user is curling hair, the two handles can be controlled to always maintain a hair clamping gap, preventing the hair clamping surface from pressing the hair straight during curling; this not only reduces the difficulty of curling hair for the user, but also improves the effect of curling hair, allowing the user to very conveniently style coherent wavy hair.

[0009] As a preferred solution: when the adjusting member acts on the first heating member to extend or retract, the adjusting member or the first heating member can act on the limiting portion to move and lock the opening and closing angles of the two handles.

[0010] As a preferred solution: the handle includes an upper handle and a lower handle pivotally connected to each other at the rear end, and the lower side of the upper handle and the upper side of the lower handle are hair clamping surfaces;

[0011] The first heating element and the actuator are mounted on the lower handle, and a first abutting portion is provided on the lower side of the upper handle;

[0012] When the adjusting member acts on the first heating member to extend or contract, the first abutting portion can abut against the limiting portion.

[0013] As a preferred solution: the actuator further includes a shift plate, and the shift plate is spaced apart from the adjusting member;

[0014] An elastic limiting protrusion is provided on one side of the shift plate facing the adjusting member, and a plurality of limiting grooves are provided on one side of the adjusting member facing the shift plate, and the elastic limiting protrusion can be inserted into the limiting grooves.

[0015] As a preferred solution: the limiting portion is provided with a stroke adjustment surface;

[0016] When the action adjustment member moves and the elastic limiting protrusion is inserted into different limiting grooves, the first abutting portion can abut against different positions of the stroke adjustment surface to obtain different hair clamping gaps.

[0017] As a preferred solution: the stroke adjustment surface is a first inclined surface, a first arc surface or a stepped surface provided on the limiting portion.

[0018] As a preferred solution, the adjusting member is a first push button, which can be moved in a first direction to cause the first heating member to extend or retract the hair clamping surface, and at the same time, the first push button or the first heating member can cause the limiting member to move to lock the opening and closing angles of the two handles to obtain a hair clamping gap; or

[0019] The adjusting member is a first knob. Rotating the first knob can cause the first heating member to extend or retract the hair clamping surface. At the same time, the first knob or the first heating member can cause the limiting portion to move to lock the opening and closing angles of the two handles to obtain a hair clamping gap.

[0020] As a preferred solution: the limiting portion is provided on the top front side of the first push button and is spaced apart from the plurality of limiting grooves along the first direction;

[0021] The first inclined surface is provided on the front surface of the limiting portion, and the first inclined surface is inclined from bottom to top and then to the rear; when the first push button is moved in the first direction by different distances, the first abutting portion can abut against different positions of the first inclined surface to obtain different sizes of hair clamping gaps; or,

[0022] The first arc surface is provided on the front surface of the limiting portion, and when the first push button moves different distances along the first direction, the first abutting portion can abut against different positions of the first arc surface to obtain hair clamping gaps of different sizes; or

[0023] The stepped surface is provided on the front surface of the limiting portion, and the stepped surface is gradually raised from front to back; when the first push button moves different distances along the first direction, the first abutting portion can abut against stepped surfaces of different heights to obtain hair clamping gaps of different sizes.

[0024] As a preferred solution: the upper handle is provided with two second heating elements on the hair clamping surface, and the two second heating elements are located on both sides of the first avoidance structure;

[0025] The lower handle is provided with two third heating elements on the hair clamping surface, and the two third heating elements are located on both sides of the first heating element.

[0026] As a preferred solution: further comprising a connecting rod assembly, the connecting rod assembly comprising a first base fixedly mounted on the lower handle and two connecting rods, the two connecting rods being pivotally connected to each other at their centers, the same end portions of the two connecting rods being movably mounted on the first base, and the same other end portions of the two connecting rods being in contact with the first heating element;

[0027] When the first push button pushes any one connecting rod to move, the two connecting rods can push the first heating element to extend or retract to clamp the hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 2 is a schematic diagram of the three-dimensional structure of a hair straightening and curling device provided in an embodiment of the present application;

[0030] Figure 2 yes Figure 1 A first cross-sectional view of the hair straightening and curling device showing a first heating element in a first position;

[0031] Figure 3 yes Figure 2 A first cross-sectional view of the hair straightening and curling device showing a first heating element in a first position;

[0032] Figure 4 yes Figure 2 A first cross-sectional view of the hair straightening and curling device showing a first heating element in a second position;

[0033] Figure 5 yes Figure 2 A first cross-sectional view of the hair straightening and curling device showing the first heating element in the third gear;

[0034] Figure 6 yes Figure 5 A schematic diagram of a partial three-dimensional structure of the hair straightening and curling device shown in FIG. 1 , wherein the first heating element is in the third gear;

[0035] Figure 7 yes Figure 1 A second cross-sectional view of the hair straightening and curling device showing the first heating element extending out of the hair clamping surface;

[0036] Figure 8 yes Figure 1 A partial exploded view of the lower handle, first heating element, and actuator of the hair straightening and curling device shown;

[0037] Figure 9 yes Figure 8 A schematic diagram of the three-dimensional structure of the first heating element and the actuator in the hair straightening and curling device shown;

[0038] Figure 10 yes Figure 9 The diagram of the first structure of the limiting portion of the hair straightening and curling device shown;

[0039] Figure 11 yes Figure 9 A schematic diagram of a second structural embodiment of the limiting portion of the hair straightening and curling device is shown;

[0040] Figure 12 yes Figure 9 A schematic diagram of a third structural embodiment of the limiting portion of the hair straightening and curling device is shown;

[0041] Figure 13 yes Figure 9 A schematic diagram of a third structural embodiment of the limiting portion of the hair straightening and curling device is shown;

[0042] Among them, the reference numerals in the figures are:

[0043] 10. Hair straightening and curling device; 101. Upper handle; 1011. First avoidance structure; 1012. First abutment portion; 102. Lower handle; 1021. First window; 1022. Second window; 103. Hair clamping surface; 11. First heating element; 111. Second displacement groove; 12. Second heating element; 13. Third heating element; 14. Adjusting element; 141. First limiting groove; 142. Second limiting groove; 143. Third limiting groove Position groove; 144, first push rod; 15, limiting portion; 151, first inclined surface; 152, first arc surface; 153, stepped surface; 16, shift plate; 161, elastic limiting protrusion; 17, connecting rod assembly; 171, first base; 1711, first displacement groove; 172, connecting rod; 1721, first pivot axis; 1722, second pivot axis; f1, first clamping gap; f2, second clamping gap; x1, first stroke. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0045] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0047] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0048] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0049] Please also refer to Figures 1 to 12 The hair straightening and curling device 10 provided in the embodiment of the present application is now described. The hair straightening and curling device 10 includes: a handle, a first heating element 11 and an actuator.

[0050] The hair clamping surface 103 is formed on opposite sides of the handles. The first heating element 11 and the actuator are mounted on the same handle. The actuator includes an adjusting member 14 and a limiting portion 15 movably mounted on the handle. When the adjusting member 14 moves, it can cause the first heating element 11 to extend or retract the hair clamping surface 103. When the adjusting member 14 or the first heating element 11 moves, it can cause the limiting portion 15 to move to limit the opening and closing angle of the two handles to obtain a hair clamping gap.

[0051] Compared with the prior art, by providing the adjusting member 14 and the limiting portion 15 on the handle, when the adjusting member 14 is moved to act on the first heating member 11 to extend the hair clamping surface 103, the limiting portion 15 can move along with the adjusting member 14 and the first heating member 11, and the limiting portion 15 is used to lock the opening and closing angles of the two handles to obtain a hair clamping gap; with this structure, when the user is curling hair, the two handles can be controlled to always maintain a hair clamping gap, preventing the hair clamping surface from pressing the hair straight when curling hair; this not only reduces the difficulty of curling hair for the user, but also improves the effect of curling hair, allowing the user to very conveniently style continuous wavy hair.

[0052] It is understandable that when the adjusting member 14 acts on the first heating member 11 to extend or retract the hair clamping surface 103, the limiting portion 15 can be moved by the moving adjusting member 14, or by the moving first heating member 11; and the movement of the limiting portion 15 can be synchronized or asynchronous with the adjusting member 14 and the first heating member 11, as long as the limiting portion 15 can move and lock the two handles after the first heating member 11 extends out of the hair clamping surface.

[0053] In some embodiments of the present application, the actuator also includes a shift plate 16, which is spaced apart from the adjusting member 14; an elastic limiting protrusion 161 is provided on the side of the shift plate 16 facing the adjusting member 14, and a plurality of limiting grooves are provided on the side of the adjusting member 14 facing the shift plate 16, and the elastic limiting protrusion 161 can be inserted into the limiting groove.

[0054] It can be understood that multiple limiting grooves correspond to a displacement stroke of the adjusting member 14. When the elastic limiting protrusion 161 enters each limiting groove respectively, the different displacement strokes of the adjusting member 14 can be limited to obtain different gears, thereby controlling the height to which the first heating member 11 is extended, so that the user can set the first heating member 11 at different heights to curl hair with different curvatures according to actual needs.

[0055] Specifically, the handle includes an upper handle 101 and a lower handle 102 pivotally connected to each other at the rear end. The lower side of the upper handle 101 and the upper side of the lower handle 102 are the hair clamping surface 103, and the first heating element 11 and the actuator are installed on the lower handle 102; the upper handle 101 is provided with a first avoidance structure 1011. When the first heating element 11 extends out of the hair clamping surface 103 and the upper handle 101 and the lower handle 102 are relatively closed, the first heating element 11 can enter the first avoidance structure 1011.

[0056] In more detail, the upper handle 101 is provided with two second heating elements 12 on the hair clamping surface 103, and the two second heating elements 12 are located on both sides of the first avoidance structure 1011; the lower handle 102 is provided with two third heating elements 13 on the hair clamping surface 103, and the two third heating elements 13 are located on both sides of the first heating element 11.

[0057] With this structure, when performing a hair straightening operation, the first heating element 11 is first operated to retract the clamping surface 103 so that the top of the first heating element 11 is not higher than the top of the third heating element 13. The second heating element 12 and the third heating element 13 are then used to clamp the hair to perform the hair straightening operation. When performing a hair curling operation, the first heating element 11 is operated to extend the clamping surface 103 so that the top of the first heating element 11 is higher than the top of the third heating element 13. The first heating element 11 and the first avoidance structure 1011 cooperate to curl the hair to a certain curvature. By continuously curling the same hair, a continuous wavy hair shape can be created.

[0058] It should be noted that the first avoidance structure 1011 can be a avoidance groove recessed from the hair clamping surface of the upper handle, allowing the extended first heating element to enter the avoidance groove for avoidance. Furthermore, the first avoidance structure 1011 can also be a hollow portion that extends through the upper and lower surfaces of the upper handle to allow the first heating element to enter the hollow portion. Thus, as long as the first heating element 11 can avoid the extension of the first heating element 11, the above two specific structures are not limited.

[0059] In some embodiments of the present application, the adjusting member 14 is a first push button, which can move along the first direction x1 to cause the first heating member 11 to extend or retract the clamping surface 103; the shift plate 16 and the first push button are stacked up and down, the elastic limiting protrusion 161 is provided on the lower side of the shift plate 16, and a plurality of limiting grooves are provided on the upper side of the first push button along the first direction x1; when the elastic limiting protrusion 161 is inserted into different limiting grooves, it can limit the first heating member 11 from extending or retracting to different heights.

[0060] Furthermore, a first abutting portion 1012 is provided on the lower side of the upper handle 101, and the limiting portion 15 is provided at the top front end of the first push button and is spaced apart from the multiple limit grooves along the first direction x1; when the first push button pushes the first heating element 11 to extend out of the hair clamping surface 103, the first abutting portion 1012 can abut against the limiting portion 15.

[0061] Exemplarily, the plurality of limiting grooves include a first limiting groove 141, a second limiting groove 142 and a third limiting groove 143, and the limiting portion 15, the first limiting groove 141, the second limiting groove 142 and the third limiting groove 143 are arranged at intervals along the first direction from front to back, and the limiting portion 15 can be integrally formed and arranged on the first push button or fixed to the first push button in a split manner.

[0062] In addition, the limiting portion can also be set at any position of the handle, as long as the limiting portion can limit the opening and closing angles of the upper handle and the lower handle and obtain the hair clamping gap after the first push button pushes the first heating element to extend out of the hair clamping surface.

[0063] Please also refer to Figures 2 to 6 When the first push button is not moved in the first direction, the elastic limiting protrusion 161 can be inserted into the first limiting groove 141, so that the first push button is in the first gear position; at this time, the top of the first heating element 11 does not extend out of the top of the hair clamping surface 103 and is in the hair straightening mode, and the limiting portion 15 of the first push button does not enter the coverage area of ​​the first abutment portion 1012. The upper handle 101 and the lower handle 102 can be normally combined without forming a hair clamping gap, allowing the user to perform hair straightening operations.

[0064] When the first push button moves forward in the first direction after a first stroke, the elastic limiting protrusion 161 can be inserted into the second limiting groove 142, placing the first push button in the second gear position and pushing the first heating element 11 to extend to the first height, placing it in the curling mode. At this time, the limiting portion 15 of the first push button enters the coverage area of ​​the first abutment portion 1012. When the upper handle 101 and the lower handle 102 are combined, the first abutment portion 1012 abuts against the limiting portion 15 to obtain a gap for clamping the hair.

[0065] When the first push button moves forward along the first direction for a second stroke, the elastic limiting protrusion 161 can be inserted into the third limiting groove 143, so that the first push button is located in the third gear and pushes the first heating element 11 to extend to the second height so that it is in the curling mode; at this time, the limiting portion 15 of the first push button always remains in the coverage area of ​​the first abutment portion 1012, and when the upper handle 101 and the lower handle 102 are combined, the first abutment portion 1012 abuts against the limiting portion 15 to obtain a hair clamping gap.

[0066] It can be seen that by setting multiple limiting grooves on the first push button, the first push button can be pushed into different gears to perform straight hair operation or curling operation. At the same time, the first push button can also control the different heights of the first heating element 11 in the curling operation mode to obtain styling requirements with different curvatures.

[0067] Please also refer to Figures 6 and 7 Preferably, a first window 1021 is provided on the upper surface of the lower handle 102 . After the upper handle 101 and the lower handle 102 are rotated and merged with each other, the first abutting protrusion can pass through the first window 1021 and selectively abut or abut against the limiting portion 15 .

[0068] For example, when the first push button is in the first position, the limiting portion 15 does not enter the area where the first window 1021 is located; at this time, the upper handle 101 and the lower handle 102 are combined, and the first abutting protrusion is inserted into the first window 1021 but does not abut the limiting portion 15, thus not forming a hair clamping gap. When the first push button is in the second or third position, the limiting portion 15 is located below the first window 1021; at this time, the first abutting protrusion can pass through the first window 1021 and abut against the top of the limiting portion 15, thus forming a hair clamping gap.

[0069] A second window 1022 is provided on the lower surface of the lower handle 102, and a first push rod 144 is provided at the bottom of the first push button. The first push rod 144 extends downward through the second window 1022 and protrudes below the lower handle 102, so that the user can push the first push button against the first push rod 144 to move it.

[0070] It is understandable that when the first push button is electrically controlled, the first push rod 144 can be canceled.

[0071] Please also refer to Figures 7 to 12 In some embodiments of the present application, the limiting portion 15 is provided with a stroke adjustment surface. When the action adjustment member 14 moves and the elastic limiting protrusion 161 is inserted into different limiting grooves, the first abutting portion 1012 can abut against different positions of the stroke adjustment surface to obtain different hair clamping gaps. The stroke adjustment surface can be a first inclined surface, a first curved surface, or a stepped surface.

[0072] Specifically, when the front surface of the limiting portion 15 is provided with a first inclined surface 151, the first inclined surface 151 is inclined from bottom to top and backward; when the first push button moves different distances along the first direction x1, the first abutting portion 1012 can abut against different positions of the first inclined surface 151 to obtain hair clamping gaps of different sizes.

[0073] For example, when the first push button is in the second position, the upper handle 101 and the lower handle 102 are combined, and the first abutting portion 1012 abuts against the lower middle portion of the first inclined surface 151, thereby creating a first clamping gap between the upper handle 101 and the lower handle 102. When the first push button is in the second position, the upper handle 101 and the lower handle 102 are combined, and the first abutting portion 1012 abuts against the upper middle portion of the first inclined surface 151, thereby creating a second clamping gap between the upper handle 101 and the lower handle 102. Because the first inclined surface 151 is tilted upward and backward from bottom to top, the second clamping gap is larger when the upper handle 101 and the lower handle 102 are abutted at a higher position than when the upper handle 101 and the lower handle 102 are abutted at a lower position. In combination with the changes in the first and second heights of the first heating element 11, increasing the height of the first heating element 11 and the clamping gap can achieve hair with a higher degree of curl in the styling zone.

[0074] When the limiting portion 15 is a first curved surface 152, the first curved surface 152 is used instead of the first inclined surface 151. When the first push button moves different distances along the first direction x1, the first abutting portion 1012 can abut against different positions of the first curved surface 152 to obtain hair clamping gaps of different sizes. The specific functions of the first curved surface 152 are substantially the same as those of the first inclined surface 151 and are not further described here.

[0075] When the limiting portion 15 is a stepped surface 153, the stepped surface 153 is used instead of the first inclined surface 151. The stepped surface 153 is arranged on the front surface of the limiting portion 15 and gradually rises from front to back. When the first push button moves different distances along the first direction x1, the first abutting portion 1012 can abut against the stepped surfaces 153 at different heights to obtain hair clamping gaps of different sizes. The specific functions of the stepped surface 153 are substantially the same as those of the first inclined surface 151 and will not be further described here.

[0076] Please also refer to Figures 1 to 12 In some embodiments of the present application, a connecting rod assembly 17 is further included. The connecting rod assembly 17 includes a first base 171 fixedly mounted on the lower handle 102 and two connecting rods 172. The center positions of the two connecting rods 172 are pivotally connected to each other, and the same end of the two connecting rods 172 is movably mounted on the first base 171. The same other end of the two connecting rods 172 rests on the first heating element 11; when the first push button pushes any connecting rod 172 to move, the two connecting rods 172 can push the first heating element 11 to extend or retract the hair clamping surface 103.

[0077] During actual assembly, since there is a certain distance between the first push button and any connecting rod 172, a pivot extension rod is further provided between the first push button and any connecting rod 172 to bridge the gap between the first push button and any connecting rod 172; that is, during specific use, the first push button is displaced forward and backward, and any connecting rod 172 is pushed to move via the extension rod, thereby realizing relative rotation of the two connecting rods 172, and adjusting whether the ends of the two connecting rods 172 are displaced closer or further away; when the two connecting rods 172 are displaced closer, the two connecting rods 172 are close to being upright to lift the first heating element 11 and extend it out of the hair clamping surface 103; when the two connecting rods 172 are displaced farther away, the two connecting rods 172 are displaced farther away to be close to being flat, so as to cancel the lifting of the first heating element 11, and cause the first heating element 11 to move downward and retract into the hair clamping surface 103.

[0078] Specifically, the first base 171 is provided with a first displacement groove 1711, and the bottoms of the two connecting rods 172 are provided with a first pivot shaft 1721 that can be movably installed in the first displacement groove 1711; the bottom of the first heating element 11 is provided with a second displacement groove 111, and the tops of the two connecting rods 172 are provided with a second pivot shaft 1722 that can be movably installed in the second displacement groove 111.

[0079] In more detail, a first protrusion 1712 is provided at the center position of the bottom of the first displacement groove 1711 along its front-to-back extension direction, and a first guide slope 1713 is provided on the front and back sides of the top of the first protrusion 1712; when the bottoms of the two connecting rods 172 move relatively close to each other, they can abut against the first guide slope 1713; by utilizing the provided first protrusion, the distance that the first heating element 11 is extended can be increased when the two rods rotate relative to each other and merge to push the first heating element 11 to extend.

[0080] It should be noted here that the height of the first protrusion can be adaptively modified according to actual needs.

[0081] In other embodiments of the present application, the adjusting member may also be a first knob, which is rotated to cause the first heating member to extend or retract the hair clamping surface 103. At the same time, the first knob or the first heating member 11 can cause the limiting portion 15 to move to lock the opening and closing angles of the two handles to obtain a hair clamping gap.

[0082] The above is merely a preferred embodiment of the present invention and only specifically describes the technical principles of the present invention. These descriptions are intended only to explain the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be imagined by those skilled in the art without inventive effort, shall be included within the scope of protection of the present invention.

Claims

1. A hair straightening and curling device comprising two handles pivotally connected to each other, wherein opposite sides of the two handles are hair clamping surfaces (103); a first heating element (11) and an actuator for driving the displacement of the first heating element (11) are movably mounted on either handle, characterized in that: The actuator comprises an adjusting member (14) and a limiting portion (15) movably mounted on the handle. When the adjusting member (14) moves, it can act on the first heating member (11) to move the hair clamping surface (103) to extend or retract. When the adjusting member (14) or the first heating member (11) moves, it can act on the limiting portion (15) to move so as to limit the opening and closing angles of the two handles to obtain a hair clamping gap.

2. The hair straightening and curling device according to claim 1, characterized in that: When the adjusting member (14) moves and acts on the first heating member (11) to extend and contract, the first heating member (11) can move and act on the limiting portion (15) to move so as to limit the opening and closing angles of the two handles to obtain a hair clamping gap; or When the adjusting member (14) moves and acts on the first heating member (11) to expand and contract, the adjusting member (14) can simultaneously act on the limiting portion (15) to move so as to limit the opening and closing angles of the two handles to obtain a hair clamping gap.

3. The hair straightening and curling device according to claim 2, characterized in that: The handle comprises an upper handle (101) and a lower handle (102) pivotally connected to each other at the rear end, and the lower side of the upper handle (101) and the upper side of the lower handle (102) are hair clamping surfaces (103); The first heating element (11) and the actuator are installed on the lower handle (102), and a first abutting portion (1012) is provided on the lower side of the upper handle; When the adjusting member (14) acts on the first heating member (11) to cause it to expand and contract, the first abutting portion (1012) can abut against the limiting portion (15).

4. The hair straightening and curling device according to any one of claims 1 to 3, characterized in that: The actuator further comprises a shift plate (16), the shift plate (16) being spaced apart from the adjusting member (14); The shift plate (16) is provided with an elastic limiting protrusion (161) on one side facing the adjusting member (14), and the adjusting member (14) is provided with a plurality of limiting grooves on one side facing the shift plate (16), and the elastic limiting protrusion (161) can be inserted into the limiting grooves.

5. The hair straightening and curling device according to claim 4, characterized in that: The limiting portion (15) is provided with a stroke adjustment surface; When the action adjustment member (14) moves and the elastic limiting protrusion (161) is inserted into different limiting grooves, the first abutting portion (1012) can abut against different positions of the stroke adjustment surface to obtain different hair clamping gaps.

6. The hair straightening and curling device according to claim 5, characterized in that: The stroke adjustment surface is a first inclined surface (151), a first arc surface (152) or a stepped surface (153) provided on the limiting portion (15).

7. The hair straightening and curling device according to claim 5 or 6, characterized in that: The adjusting member (14) is a first push button, which can move along a first direction (x1) to act on the first heating member (11) to extend or retract the hair clamping surface (103), and at the same time, the first push button or the first heating member (11) can act on the limiting portion (15) to move to lock the opening and closing angles of the two handles to obtain a hair clamping gap; or The regulating member (14) is a first knob, and the rotation of the first knob can act on the first heating member (11) to extend or retract the hair clamping surface (103). At the same time, the first knob or the first heating member (11) can act on the limiting portion (15) to move to lock the opening and closing angles of the two handles to obtain a hair clamping gap.

8. The hair straightening and curling device according to claim 7, characterized in that: The limiting portion (15) is arranged on the front side of the top of the first push button and is spaced apart from the plurality of limiting grooves along the first direction; The first inclined surface (151) is provided on the front surface of the limiting portion (15), and the first inclined surface (151) is inclined from bottom to top and backward; when the first push button moves different distances along the first direction (x1), the first abutting portion (1012) can abut against different positions of the first inclined surface (151) to obtain different sizes of hair clamping gaps; or, The first arc surface (152) is provided on the front surface of the limiting portion (15), and when the first push button moves different distances along the first direction (x1), the first abutting portion (1012) can abut against different positions of the first arc surface (152) to obtain different sizes of hair clamping gaps; or, The stepped surface (153) is provided on the front surface of the limiting portion (15), and the stepped surface (153) is gradually raised from the front to the back; when the first push button moves different distances along the first direction (x1), the first abutting portion (1012) can abut against the stepped surfaces (153) of different heights to obtain hair clamping gaps of different sizes.

9. The hair straightening and curling device according to claim 3, characterized in that: The upper handle (101) is provided with two second heating elements (12) on the hair clamping surface (103), and the two second heating elements (12) are located on both sides of the first avoidance structure (1011); The lower handle (102) is provided with two third heating elements (13) on the hair clamping surface (103), and the two third heating elements (13) are located on both sides of the first heating element (11).

10. The hair straightening and curling device according to claim 3 or 9, characterized in that: The connecting rod assembly (17) further comprises a first base (171) fixedly mounted on the lower handle and two connecting rods (172), wherein the two connecting rods (172) are pivotally connected to each other at their centers, and the same end portions of the two connecting rods (172) are movably mounted on the first base (171), and the same other end portions of the two connecting rods (172) abut against the first heating element (11); When the first push button pushes any one connecting rod (172) to move, the two connecting rods (172) can push the first heating element (11) to extend or retract to clamp the hair.

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