Portable hair straightener with high safety

Abstract

The utility model relates to a portable hair straightener with high safety, first ends of an upper handle and a lower handle are connected through a rotating shaft, opposite surfaces of second ends of the upper handle and the lower handle are respectively provided with a heating component, and the second ends of the upper handle and the lower handle can rotate relative to the rotating shaft to enable the two heating components to be close to or separated from each other, so that the handles are clamped or opened. A control panel connected with the heating assembly is arranged in the handle, the control panel drives the heating assembly to work and acts on hair through the heating assembly, a locking assembly is arranged between the upper handle and the lower handle, the locking assembly can rotate relative to the handle, and the locking assembly enables the handle in the clamping state to keep clamping or enables the handle to be switched between the clamping state and the opening state. The locking assembly is arranged in the middle of the handle, when the handle is toggled to drive the locking assembly to rotate to the locking area, the stopping block generates stopping force on the locking wall to avoid relative rotation of the handle, the handle is kept in the clamping state, the size of the product is reduced when the product is stored and carried outdoors, space is saved, meanwhile, the child lock function is started, and safety is higher.

Description

Technical Field

[0001] The utility model relates to the field of hair straighteners, and in particular to a portable hair straightener with high safety. Background Art

[0002] As people's living standards continue to improve, hair straighteners are increasingly widely used in daily life. Hair straighteners, also known as hair straightening combs, hair straightening rods and hair curling irons, are high-temperature electronic products used to straighten hair. They heat, soften and then cool the hair through heating elements to achieve the effect of straightening hair. Existing hair straightening combs remain open after use, occupying storage space and not convenient to carry in a backpack. At the same time, they often need to be plugged into the mains before they can be used, which cannot meet the requirements of self-powered use. When the self-powered device is placed in a backpack, it may be accidentally touched, causing the hair straightener to start and heat up, posing a safety hazard.

[0003] Chinese patent publication number CN219845418U discloses a lock structure for opening and closing, including an upper component, a lower component and a hinge shaft, one end of the upper component and the lower component is hinged on the hinge shaft, characterized in that: a top plate is sleeved on the hinge shaft, the top plate and the upper component are fixedly connected, a strip-shaped notch is opened on the outer wall of one end of the lower component, a lock is arranged at the strip-shaped notch, the lock includes an insertion part for inserting into the strip-shaped notch and a pushing part formed at the upper end of the insertion part, a limiting block is formed on the outer wall of the insertion part, after the insertion part is inserted into the strip-shaped notch, after the pushing part is rotated 90 degrees, the limiting block and the inner side wall of the strip-shaped notch of the lower component are abutted, and the insertion part limits the rotation of the top plate. The utility model provides a lock structure for opening and closing, which can stably and quickly store a hair straightener, and the operation is simple and convenient. Although the patent also records the opening and closing lock structure for storage, the lock structure is implemented in a push-type manner, which is prone to accidental touch. At the same time, it needs to be plugged into the mains before it can be used, which cannot meet the needs of casual use and has relatively limited usage scenarios.

[0004] Chinese Patent Publication No. CN220212211U discloses a hair straightener, comprising an upper clamping plate, a lower clamping plate being rotatably connected to the bottom of the upper clamping plate, an upper heating plate being fixedly installed on the lower front side of the upper clamping plate, and a lower heating plate being fixedly installed on the upper front side of the lower clamping plate. Adjusting plates are fixedly installed on both left and right ends of the front sides of the upper and lower clamping plates through hinges, a small heating plate is fixedly installed on the bottom of the adjusting plate, and anti-scalding pads are fixedly installed on the upper surface of the upper clamping plate and the lower surface of the lower clamping plate. The utility model proposes a hair straightener. When it is necessary to perform a straightening operation on the bangs and sideburns except for the shorter hair, the two adjusting plates are lifted upward, thereby shortening the width of the upper clamping plate and the lower clamping plate, thereby preventing the user from being scalded. When it is necessary to perform a straightening operation on the hair of other parts of the user, the two adjusting plates only need to be pulled downward again, thereby increasing the width of the upper clamping plate and the lower clamping plate, thereby improving the efficiency of clamping the hair. Although this patent uses batteries for power supply and is more convenient to use, it does not have a child lock function. When mixed with other items, it is easy to be accidentally touched, causing the product to turn on and heat up, posing a safety hazard. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing hair straightener remains in an open state after use, which occupies storage space and is not convenient to carry in a backpack; at the same time, it often needs to be plugged into a mains power supply before use, which cannot meet the requirements of self-powered use. When the self-powered hair straightener is placed in a backpack, it may be accidentally touched and cause the hair straightener to start up and heat up, which poses a safety hazard. In view of the above defects of the prior art, a portable hair straightener with high safety is provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A portable hair straightener with high safety is constructed, comprising a handle, wherein the handle comprises an upper handle and a lower handle, wherein the first ends of the upper handle and the lower handle are connected via a rotating shaft, and the second ends of the upper handle and the lower handle are both provided with heating components on opposite surfaces, and the second ends of the upper handle and the lower handle can rotate relative to the rotating shaft to bring the two heating components closer or apart, thereby clamping or opening the handle, wherein a control board connected to the heating component and a battery connected to the control board are provided in the handle, wherein the control board drives the heating component to work and acts on the hair via the heating component, and wherein a locking component is provided between the upper handle and the lower handle, wherein the locking component can rotate relative to the handle, and wherein the locking component keeps the handle in a clamped state clamped or switches the handle between a clamped state and an open state.

[0008] Preferably, a connecting column is provided at the first end of the upper handle and the lower handle, and a rotating shaft hole is provided on the connecting column. The rotating shaft is inserted into the rotating shaft hole to enable the upper handle and the lower handle to rotate relative to the rotating shaft. A locking column is provided on the upper handle connecting column, one side of the locking column is a locking wall, the side close to the locking wall is a locking area, and the area between the connecting columns is a non-locking area. The locking assembly rotates between the locking area and the non-locking area. When the locking assembly is located in the locking area, the handle in the clamped state remains in the clamped state. When the locking assembly is located in the non-locking area, the handle switches between the clamped state and the open state.

[0009] Preferably, the locking column is taller than the connecting column and is placed above the connecting column. The vertical wall of the locking column facing the connecting column is the locking wall. The locking area is formed by the locking wall and the area above the connecting column. The non-locking area is formed by the area between the connecting columns.

[0010] Preferably, the locking assembly includes a lock key and a toggle handle arranged at one end of the lock key, the other end of the lock key is connected to the handle through a fixed shaft, and a stop block is provided on the lock key. When the toggle handle is rotated to rotate the stop block to the locking area, the handle remains in the locked state; when the toggle handle is rotated to rotate the stop block to the non-locking area, the handle switches between the clamped state and the open state.

[0011] Preferably, a knob accessory is provided above the lock key, and a return spring is provided above the knob accessory. When the handle is in a clamped state, the return spring is compressed and when the force on the handle is released, the return spring recovers its deformation to open the handle.

[0012] Preferably, two groups of knob accessory fixing columns are provided on the lock key facing the knob accessory side, and when the lock key is rotated to the locking area and the non-locking area, the knob accessory slides between the two groups of knob accessory fixing columns so that the knob accessory is stationary relative to the handle.

[0013] Preferably, a clip is provided on the knob accessory, clip arc grooves are provided at both ends of the clip, a fixing column is provided on the handle corresponding to the clip arc groove, and the clip is sleeved in the middle of the knob accessory.

[0014] Preferably, the locking assembly further comprises a child lock control panel, which is connected to the control panel. When the locking assembly keeps the handle in a clamped state clamped, the child lock control panel activates the child lock to close the control panel and prevent it from being started.

[0015] Preferably, a child lock switch is provided on the child lock control panel, and when the locking assembly is turned on the child lock switch, the handle is in a clamped state and the hair straightener cannot be turned on, and when the locking assembly is turned away from the child lock switch, the handle can be switched between clamped and opened and the hair straightener can be turned on and work normally.

[0016] Preferably, a gap is left between the heating component and the handle, the second end of the handle is set as a V-shaped opening, the heating component includes a heating plate and a heat conducting plate sleeved on the outside of the heating plate, the heat conducting plate acts on the hair, the lower end of the heating plate is connected to the bracket, and the bracket and the handle are connected by a compression spring.

[0017] The beneficial effect of the utility model is that by setting a locking assembly in the middle of the handle, when the handle is turned to drive the locking assembly to rotate to the locking area, the stop block generates a blocking force on the locking wall to prevent the handle from rotating relative to each other so that the handle remains in a clamped state, thereby reducing the volume of the product when stored and carried out, saving space, and making it convenient to carry. When it is rotated to the locking area, the locking assembly drives the child lock function to start, thereby preventing objects from touching the power button to turn on the product and causing the heating assembly to heat up, which is safer. When it is rotated to the non-locking area, the hair straightener can switch freely between the clamped and opened states, and the hair straightener works normally. A knob accessory is arranged above the locking assembly, and a return spring is arranged above the knob accessory, so that the handle in the clamped state can be opened under the spring return force. At the same time, a clip is arranged on the knob accessory and the two ends of the clip are fixed to the handle, so that the return lock key is prevented from rotating and causing the return spring to loosen, and the lock key can only rotate left and right, and the blocking stability is higher. A gap is left at the connection between the handle and the heating component to avoid hair getting stuck at the connection, making it more convenient to use. The handle adopts a V-shaped opening to facilitate more hair to be clamped between the heating components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the hair straightener in the open state according to a preferred embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of a hair straightener according to a preferred embodiment of the utility model;

[0021] Figure 3 This is a schematic cross-sectional structural diagram of a hair straightener according to a preferred embodiment of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the upper housing of a hair straightener according to a preferred embodiment of the utility model;

[0023] Figure 5 This is a schematic structural diagram of the lower housing of a hair straightener according to a preferred embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the connection state of the upper shell and the lower shell of the hair straightener in a preferred embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the connection between the upper cover, the lower cover and the locking assembly of the hair straightener in a preferred embodiment of the utility model;

[0026] Figure 8 This is an exploded schematic diagram of the upper cover, the lower cover and the locking assembly of the hair straightener in a preferred embodiment of the utility model;

[0027] Fig. 9 This is a schematic diagram of the connection structure between the lock button and the child lock control panel of the hair straightener in a preferred embodiment of the utility model;

[0028] Fig.10 This is a schematic diagram of the three-dimensional structure of the heating component of the hair straightener in a preferred embodiment of the utility model;

[0029] Fig.11 This is a schematic diagram of the exploded structure of the heating component of the hair straightener in a preferred embodiment of the utility model;

[0030] Fig.12 This is a schematic diagram of the three-dimensional structure of the hair straightener in the clamping state according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0032] A portable hair straightener with high safety is provided in a preferred embodiment of the utility model; Figure 1-2As shown, it includes an upper handle 1 and a lower handle 2 connected by a rotating shaft at one end, and the other ends of the upper handle and the lower handle can rotate relative to each other to clamp or release each other. The upper handle 1 includes an upper shell 10 and an upper cover 11 connected to the upper shell. A control panel 3 is arranged between the upper shell 10 and the upper cover 11. A light panel 5 connected to the control panel and an adjustment switch 6 for adjusting the working state of the hair straightener are arranged outside the upper shell. The lower handle 2 includes a lower shell 20 and a lower cover 21 connected to the lower shell. A battery 4 electrically connected to the control panel is arranged between the lower shell and the lower cover. The battery supplies power to the control panel to start the hair straightener. A heating component 7 is arranged on the opposite surface of the other end of the upper handle and the lower handle. The heating component is connected to the control panel and the battery for heating. After the hair passes between the two groups of heating components, the hair is heated and straightened. A locking component 8 is arranged at the connecting end of the upper handle and the lower handle. When the upper handle and the lower handle are in a clamping state, the locking component is turned, and the upper handle and the lower handle cannot be separated to maintain the clamping state, so as to save space when stored.

[0033] Specifically, Figure 4-5 As shown, two groups of upper shell connecting columns 102 are provided at one end of the upper shell 10, and limiting grooves 1021 are provided on the opposite surfaces of the upper shell connecting columns, and shaft holes 1022 are provided on the upper shell connecting columns. A lower shell connecting column 200 is provided at one end of the lower shell 20 corresponding to the upper shell connecting column, and a limiting column 2000 is provided on the outer side of the lower shell connecting column corresponding to the limiting groove, and a shaft hole 1022 is also provided on the lower shell connecting column. When the upper shell connecting column 102 is connected with the lower shell connecting column 200, the shaft holes 1020 correspond to each other, and the limiting column 2000 is inserted into the limiting groove 1021, and the shaft 14 is inserted into the shaft hole to connect the upper shell with the lower shell and make the upper shell and the lower shell rotate relative to the shaft so that the two groups of heating components move to contact or separate.

[0034] Furthermore, if Figure 4-6 As shown, one set of upper shell connecting columns is provided with a locking column 1020, the height of the locking column is higher than the upper shell connecting column, and one side of the locking column is a locking wall 1023 and a locking area 1024 located on the locking wall. When the upper handle and the lower handle are clamped, and the locking assembly 8 is rotated until the locking area 1024 contacts the locking wall 1023, the upper shell cannot be rotated due to the blocking effect of the locking assembly 8, so that the hair straightener remains in a clamped state.

[0035] Furthermore, if Figure 5 and Figure 7-9As shown, the locking assembly 8 includes a lock key 81 disposed on the lower cover 21, and a pressure plate 82 disposed above the lock key. A child lock control panel 80 connected to the control panel is disposed below the lock key, and a return spring 13 is disposed above the pressure plate. When the hair straightener is in a clamped state and the pressure on the handle is released, the return spring opens the hair straightener under its elastic force. The lock key 81 includes a fixed shaft 83 disposed on both upper and lower sides of one end of the lock key. The lower cover 21 is provided with a lower locking assembly lower fixing hole 210 for accommodating the fixed shaft, and the lower housing is correspondingly provided with an upper locking assembly fixing hole 203 for accommodating the fixed shaft. The lock key 81 is fixed to the lower handle through two sets of fixing holes and two fixed shafts, and the lock key can rotate relative to the fixed shaft so that the lock assembly rotates between the locking area and the non-locking area.

[0036] Furthermore, if Figure 5 and Figure 8-9 As shown, two groups of knob accessory fixing holes 813 are arranged above the lock key 81, a knob accessory 84 is arranged correspondingly above the lock key, a knob accessory fixing 842 is arranged corresponding to the knob accessory fixing hole below the knob accessory, and a pressure plate fixing column 841 is arranged above the knob accessory fixing column. The pressure plate is placed at the pressure plate fixing column, and the pressure plate is fixed to the lock key through the knob accessory. A return spring fixing column 840 is arranged above the knob accessory, one end of the return spring 13 is inserted into the return spring fixing column, and the other end is fixed in the return spring hole 201 of the lower shell. In order to prevent the pressure plate from shaking, two groups of pressure plate fixing columns 204 are arranged on the lower shell body, and pressure plate arc grooves 820 are arranged on both sides of the pressure plate. The pressure plate arc grooves are placed in the pressure plate fixing columns to fix the pressure plate, and pressure plate fixing holes 821 are arranged on the pressure plate corresponding to the pressure plate fixing columns. An annular baffle with a radius larger than the pressure plate fixing column is arranged above the pressure plate fixing column, so that the pressure plate can only be removed through one side of the knob accessory fixing column 842. At the same time, when the lock key is turned, the knob accessory slides between the two groups of knob accessory fixing holes. The lock key 80 includes a toggle handle 810 and a stop block 812 arranged on the lock key. When the locking assembly locks the hair straightener, the stop block 812 is placed in the locking area. A travel block 811 is arranged below the lock key. A child lock switch 800 is arranged corresponding to the travel block on the child lock control panel 80 below the lock key. When the child lock switch is activated, the child lock control panel turns off the control panel. At this time, even if the power button is long pressed, the hair straightener cannot start working, so as to avoid the hair straightener being accidentally touched by other objects when stored, thereby causing the heating component to heat up and cause a fire hazard. In addition, a charging port 211 for charging the battery is also arranged on the child lock control panel.

[0037] Furthermore, if Figure 2-3As shown, the heating assembly 7 includes a bracket 72, and is connected to the upper shell through a compression spring 73. A heating plate 71 is arranged on the bracket, and a heat conducting plate 70 is arranged at the lower end of the heating plate. When the heating plate is heated, the heat conducting plate is heated, and the hair is heated and straightened by the heat conducting plate. The heating assembly is connected to the upper shell through the compression spring 73, so that a buffer force is generated when clamping the hair for straightening, so as to avoid pulling the hair or damaging the scalp due to excessive pulling force.

[0038] Furthermore, if Figure 4-5 and Figure 10-11 As shown, one side of the heat conducting plate 70 is open, and there is a cavity 701 inside it. The heating plate 71 is arranged in the cavity to increase the contact area between the heat conducting plate and the heating plate. The heating plate includes a heating plate arranged in the cavity, and a connecting wire 711 connected to the heating plate. The connecting wire is energized to make the heating plate conduct for heating. A bracket 72 is arranged at the opening of the heat conducting plate 70, and a protruding bracket end 724 is arranged on the bracket. The bracket end is placed on the two side walls of the heat conducting plate cavity to fix the heating plate in the heat conducting plate. Two groups of sockets 722 are arranged on the heat conducting plate, and a first plug column 713 is arranged below the heating plate corresponding to the socket. The first plug column is inserted into the socket to fix the heating plate on the bracket, and a second groove 721 is arranged in the middle of the bracket, and a fixing block 712 is arranged below the heating plate corresponding to the second groove to further fix the heating plate on the bracket to prevent the heating plate from shaking left and right, and also facilitate the installation and fixation of the heating plate. A plurality of first grooves 720 are arranged on the side of the bracket, and a fixing ear 700 is arranged on the side of the heat conducting plate 70 corresponding to the first grooves, so as to improve the stability of the heating component. In order to provide a buffering force between the connection between the heating component and the upper shell, the bottom of the bracket 72 is connected to the upper shell through a compression spring 73. A heating component fixing cavity 101 is arranged at the front end of both the upper shell and the lower shell, and the heating component is fixed in the cavity. A compression spring accommodating hole 1010 is arranged in the heating component fixing cavity, and the lower end 731 of the compression spring is placed in the compression spring accommodating hole. A second plug post 723 is arranged at the lower end of the bracket, and the upper end 730 of the compression spring is placed in the second plug post. The compression spring enables the heating component to move in the heating component fixing cavity, thereby providing a buffering force. In order to facilitate the improvement of the buffering force of the heating component, the compression spring is arranged as a conical spring, and the side with a larger area is connected to the upper shell. The connection method between the lower shell and the heating component is the same as that of the upper shell, and will not be repeated here.

[0039] Furthermore, if Fig.12 As shown, the upper handle 1 and the lower handle 2 are provided with a V-shaped opening 15 near one end of the heating component, so as to facilitate the insertion of more hair into the heating component, and a gap 9 is left at the connection between the heating component and the upper cover and the lower cover to prevent hair from getting stuck. Multiple groups of anti-slip parts 100 are provided on the outside of the upper shell 10 to increase the friction of the handle, and an anti-slip part can also be provided on the lower handle.

[0040] When in use, long press the adjustment switch 6 to start the hair straightener to heat the heating plate 71, and transfer the heat to the heat conducting plate 70 to increase the temperature of the heat conducting plate. Put the hair to be straightened between the heating components 7 through the V-shaped opening 15, apply force to the upper handle 1 or the lower handle 2 to rotate the upper handle and the lower handle relative to the rotating shaft 14 so that the heating components move relatively to clamp the hair, and slightly apply force to make the compression spring 73 have a certain pressure. At this time, the hair straightener clamps the hair, and the hair straightener can be pulled on the hair to complete the heating and straightening of the hair, and then release the force on the upper handle or the lower handle, and open the upper handle and the lower handle under the action of the return spring 13 to complete the hair straightening effect once, and repeat this action until all the hair is straightened. When the hair straightener needs to be put into the backpack, force is applied to the upper handle or the lower handle to clamp the hair straightener. At this time, the upper handle connecting column 102 and the lower handle connecting column 200 rotate relative to each other and cause the locking column 1020 to rotate. At this time, the toggle handle 810 is rotated to rotate the lock key 81 relative to the fixed shaft 83, and the rotation of the lock key drives the stop block 812 to rotate to the locking area 1024 to contact the locking wall 1023, and generates a stopping force on the locking arm to prevent the upper handle and the lower handle from rotating under the return spring. The travel block 811 slides to the child lock switch 800 and presses the child lock switch to put the hair straightener into the child lock state. At this time, even if the adjustment switch is pressed, the hair straightener cannot start working, which is safer. When reused, slide the toggle handle 810 to make the lock key slide until the stop block is no longer in contact with the locking wall and enters the non-locking area. The travel block cancels the pressure on the child lock switch. At this time, the upper handle and the lower handle open under the restoring force of the return spring, and since the child lock state is released, the adjustment switch can be pressed for use.

[0041] It should be understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A portable hair straightener with high safety, comprising a handle, the handle comprising an upper handle and a lower handle, the first ends of the upper handle and the lower handle being connected by a rotating shaft, the second ends of the upper handle and the lower handle being provided with heating components on opposite surfaces, the second ends of the upper handle and the lower handle being able to rotate relative to the rotating shaft to bring the two heating components closer or apart, thereby clamping or opening the handle, a control board connected to the heating component and a battery connected to the control board being provided in the handle, the control board driving the heating component to work and acting on the hair through the heating component, Features: A locking assembly is provided between the upper handle and the lower handle. The locking assembly can rotate relative to the handle. The locking assembly enables the handle in a clamped state to remain clamped or enables the handle to switch between a clamped state and an open state.

2. The hair straightener according to claim 1, Features: The first ends of the upper handle and the lower handle are both provided with a connecting column, and the connecting column is provided with a rotating shaft hole. The rotating shaft is inserted into the rotating shaft hole to enable the upper handle and the lower handle to rotate relative to the rotating shaft. A locking column is provided on the upper handle connecting column, one side of the locking column is a locking wall, the side close to the locking wall is a locking area, and the non-locking area is between the connecting columns. The locking assembly rotates between the locking area and the non-locking area. When the locking assembly is located in the locking area, the handle in the clamped state remains in the clamped state. When the locking assembly is located in the non-locking area, the handle switches between the clamped state and the open state.

3. The hair straightener according to claim 2, Features: The locking column is higher than the connecting column and is placed above the connecting column. The vertical wall of the locking column facing the connecting column is the locking wall. The locking area is formed by the locking wall and the area above the connecting column, and the non-locking area is formed by the area between the connecting columns.

4. The hair straightener according to claim 2, Features: The locking assembly includes a lock key and a toggle handle arranged at one end of the lock key, the other end of the lock key is connected to the handle through a fixed shaft, and a stop block is arranged on the lock key. When the toggle handle is rotated to rotate the stop block to the locking area, the handle remains in the locked state, and when the toggle handle is rotated to rotate the stop block to the non-locking area, the handle switches between the clamped state and the open state.

5. The hair straightener according to claim 4, Features: A knob accessory is arranged above the lock key, and a return spring is arranged above the knob accessory. When the handle is in a clamping state, the return spring is compressed and when the force on the handle is released, the return spring recovers its deformation to open the handle.

6. The hair straightener according to claim 5, Features: The lock key is provided with two sets of knob accessory fixing columns on the side facing the knob accessory. When the lock key is rotated to the locking area and the non-locking area, the knob accessory slides between the two sets of knob accessory fixing columns so that the knob accessory is stationary relative to the handle.

7. The hair straightener according to claim 6, Features: The knob accessory is provided with a clip, both ends of the clip are provided with clip arc grooves, the handle is provided with a fixing column corresponding to the clip arc groove, and the clip is sleeved in the middle of the knob accessory.

8. A hair straightener according to any one of claims 1 to 7, Features: The locking assembly also includes a child lock control panel, which is connected to the control panel. When the locking assembly keeps the handle in a clamped state clamped, the child lock control panel activates the child lock to close the control panel and make it impossible to start.

9. The hair straightener according to claim 8, Features: A child lock switch is provided on the child lock control panel. When the locking assembly is turned on the child lock switch, the handle is in a clamped state and the hair straightener cannot be turned on. When the locking assembly is turned away from the child lock switch, the handle can be switched between clamped and opened and the hair straightener can be turned on and work normally.

10. The hair straightener according to claim 1, Features: A gap is left between the heating component and the handle, the second end of the handle is set as a V-shaped opening, the heating component includes a heating plate and a heat conducting plate sleeved on the outside of the heating plate, the heat conducting plate acts on the hair, the lower end of the heating plate is connected to the bracket, and the bracket and the handle are connected by a compression spring.

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