Hair straightener with multiple opening and closing angles

Abstract

The utility model relates to a multi-opening-and-closing-angle hair straightener which comprises an upper handle and a lower handle, heating assemblies are arranged on the opposite faces of the upper handle and the lower handle, a control panel connected with the heating assemblies is arranged in the upper handle and / or the lower handle, and the multi-opening-and-closing-angle hair straightener further comprises a button and a connecting wire which are connected with the control panel. A rotary locking assembly is arranged at the rotating shaft connecting end of the upper handle and the lower handle and comprises a tail cover arranged outside the end of the upper handle and the end of the lower handle in a sleeving mode and a tail ring arranged outside the tail cover in a sleeving mode, a limiting block is connected into the tail cover, and a stop block is arranged on the inner wall of the tail ring. The tail ring is rotated to make the stop block contact with the limiting block to change the opening angle of the upper handle and the lower handle. The opening angle of the upper handle and the lower handle is adjusted through different contact positions of a stop block and a limiting block arranged on the tail ring, adjustment is more convenient, meanwhile, adjustment is further facilitated through arrangement of a gear assembly, the gear assembly is connected through a spring, the hand feeling is better during rotation, operation is more convenient, and adjustment is simpler.

Description

Technical Field

[0001] The utility model relates to the field of hair straighteners, in particular to a hair straightener with multiple opening angles. Background Art

[0002] A hair beauty device is a household appliance used for repairing hair and styling hair. There are many types of hair beauty devices, such as common hair straighteners and hair curlers. Generally, a hair straightener includes an upper clamping plate and a lower clamping plate with heating elements provided at the heads and pivotally connected at the tails, and a connector assembled at the tails of the upper clamping plate and the lower clamping plate and connected to an external power supply harness. When using a hair straightener, it is usually necessary to manually open the upper clamping plate and the lower clamping plate first, and place the hair between the upper clamping plate and the lower clamping plate for hair styling. However, the maximum opening angle of the existing hair straighteners cannot be adjusted during use, and it can only be adjusted between the clamping state and the maximum opening angle, resulting in poor operation during use; at the same time, gear adjustment cannot be achieved when the opening angle is adjusted, resulting in relatively unstable angle adjustment and certain inconvenience.

[0003] Chinese Patent Publication No. CN212630175U provides a hair straightener, which includes an upper clamping plate and a lower clamping plate with heating elements provided at the heads and pivotally connected to each other by a pivot at the tails, a connector assembled at the ends of the tails of the upper clamping plate and the lower clamping plate, an elastic member in a pre-compressed state and with opposite ends respectively pushing against the upper clamping plate and the lower clamping plate, a locking mechanism for locking the upper clamping plate and the lower clamping plate in a closed state, and an anti-disengagement mechanism for preventing the connector from disengaging from the tails of the upper clamping plate and the lower clamping plate. The front end of the connector is provided with a plug-in portion correspondingly inserted between the tails of the upper clamping plate and the lower clamping plate. The locking mechanism includes a locking groove provided at the front end of the plug-in portion and locking members provided on the inner side walls of the tails of the upper clamping plate and the lower clamping plate. The locking members are clamped in the locking groove to lock the upper clamping plate and the lower clamping plate. When the tails of the upper clamping plate and the lower clamping plate are stressed and cause the locking members to slide out of the locking groove, the upper clamping plate and the lower clamping plate open under the pushing force of the elastic member. This embodiment facilitates positioning of the open and closed states. This patent only realizes the positioning after opening, and cannot adjust the maximum opening angle of the upper clamping plate and the lower clamping plate.

[0004] A hair straightener disclosed in Chinese Patent Publication No. CN213962186U includes a lower shell assembly, a spring, and an upper shell assembly rotatably mounted on the lower shell assembly, and further includes a locking knob rotatably mounted at the end of the lower shell assembly and having a first position allowing the upper shell assembly to rotate and a second position restricting the rotation of the upper shell assembly. The present utility model provides a hair straightener that can quickly and conveniently switch between releasing the upper shell assembly and locking the upper shell assembly, with simple operation and stable structure, reducing user fatigue and greatly improving the user experience. This patent also cannot adjust the maximum opening angle of the upper shell assembly and the lower shell assembly, and the use scenario is limited. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is that the maximum opening angle of the existing hair straightener during use cannot be adjusted, and it can only be adjusted between clamping and the maximum opening angle, resulting in poor operation during use; at the same time, gear adjustment cannot be achieved at the opening angle, resulting in relatively unstable angle adjustment and certain inconvenience. In view of the above defects of the prior art, a hair straightener with multiple opening angles is provided.

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

[0007] Construct a hair straightener with multiple opening angles, including an upper handle and a lower handle. One end of the upper handle and the lower handle is connected by a rotating shaft so that the other end can move relatively. Heating components are arranged on the opposite surfaces of the upper handle and the lower handle. A control board connected to the heating components is arranged in the upper handle and / or the lower handle. The hair straightener further includes a button and a connecting wire connected to the control board. A rotation locking component is arranged at the rotating shaft connection end of the upper handle and the lower handle. The rotation locking component includes a tail cover sleeved outside the ends of the upper handle and the lower handle, and a tail ring sleeved outside the tail cover. A limiting block is connected inside the tail cover, and a stop block is arranged on the inner wall of the tail ring. Rotating the tail ring makes the stop block contact the limiting block to limit the upper handle and the lower handle at several different open angle positions.

[0008] Preferably, a clamping groove is arranged on the tail cover, the limiting block is placed in the clamping groove, and a travel groove is also arranged on the tail cover. The clamping groove is connected to the travel groove. When the rotating block rotates in the travel groove and contacts the limiting block, the opening angle of the upper handle and the lower handle is limited. When the rotating block rotates in the travel groove and does not contact the limiting block, the opening angle of the upper handle and the lower handle is the largest.

[0009] Preferably, the limiting block is provided with a limiting inclined surface. The rotating block rotates in the travel groove and contacts different places of the limiting inclined surface to adjust the opening angle of the upper handle and the lower handle.

[0010] Preferably, the limiting inclined surface inclines towards one side of the travel groove, and the end of the limiting inclined surface is flush with the inner wall of the travel groove.

[0011] Preferably, the rotation locking component further includes a decorative ring that rotates synchronously with the tail ring. Multiple groups of gear grooves are arranged inside the decorative ring. A gear component is connected to the lower handle. When the gear component is placed in different gear grooves, the opening angles of the upper handle and the lower handle are different.

[0012] Preferably, the gear component includes a gear post placed in the gear groove. The gear post is connected to the lower handle through a clamping foot, and the gear post is connected to the lower handle through a spring. When the decorative ring is rotated to place the gear post in the gear groove, the spring resets. When the decorative ring is rotated to place the gear post in a non-gear groove, the spring is compressed.

[0013] Preferably, the gear component further includes a convex column, which is connected to the lower handle so that the gear component can only move in the direction perpendicular to the lower handle. There are multiple groups of connecting columns arranged on the tail ring, and connecting grooves corresponding to the connecting columns are arranged on the decorative ring. The connecting columns are inserted into the connecting grooves so that the decorative ring rotates synchronously with the tail ring, and / or a connecting block is arranged on the inner wall of the tail ring, and a connecting hole corresponding to the connecting block is arranged on the decorative ring. The connecting block is placed in the connecting hole so that the decorative ring rotates synchronously with the tail ring.

[0014] Preferably, the heating component includes a base and a heat source arranged on the base. The heat source is connected to the control board. A working surface is also arranged on the base. After the heat source is heated, the heat is transferred to the working surface to heat the working surface for straightening operation.

[0015] Preferably, a baffle is arranged at one end of the base, and pins are arranged on the lower side of the working surface. The working surface is connected to the base by inserting the pins, and an insertion block is arranged at the connection. Clamping blocks are arranged on both sides of the base, and the heating component is detachably connected to the upper handle and the lower handle through the clamping blocks.

[0016] Preferably, a cover plate is arranged on the upper handle and the lower handle. The cover plate fixes the control board, and the cover plate is detachably connected to the upper handle and the lower handle.

[0017] The beneficial effects of the present utility model are as follows: By adjusting the contact positions of the stop blocks and the limit blocks arranged on the tail ring, the opening angle of the upper handle and the lower handle can be adjusted more conveniently. At the same time, the gear component is set to further facilitate the adjustment. The gear component is connected by a spring, making the rotation feel better and the operation more convenient, and the opening adjustment angle is simpler. The heating component adopts a detachable connection method, which is convenient for replacing the heating component. At the same time, the working surface of the heating component is connected to the base in an inserted manner, making the working surface more stable when the upper handle and the lower handle are opened, and the use is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0019] Figure 1 is a three-dimensional structural diagram of a hair straightener according to a preferred embodiment of the present utility model;

[0020] Figure 2 is an exploded structural diagram of a hair straightener according to a preferred embodiment of the present utility model;

[0021] Figure 3Schematic diagram of the connection structure between the tail ring and the decorative ring of the preferred embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the structure of the tail ring and the decorative ring of the preferred embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the structure after removing (the tail ring and the decorative ring) in the treatment method of the preferred embodiment of the present utility model;

[0024] Figure 6 Of the preferred embodiment of the present utility model Figure 5 Enlarged structure schematic diagram at position A in;

[0025] Figure 7 Schematic diagram of the connection structure between the lower handle and the gear component of the preferred embodiment of the present utility model;

[0026] Figure 8 Of the preferred embodiment of the present utility model Figure 7 Enlarged structure schematic diagram at position B in;

[0027] Figure 9 Stereo structure schematic diagram of the gear component of the preferred embodiment of the present utility model;

[0028] Figure 10 Schematic diagram of the connection structure between the lower handle and the connecting wire of the preferred embodiment of the present utility model;

[0029] Figure 11 Explosion structure schematic diagram of the heating component of the preferred embodiment of the present utility model. Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] A hair straightener with multiple opening and closing angles of the preferred embodiment of the present utility model; as Figure 1 - Figure 2 And Figure 10As shown in the figure, it includes an upper handle 10 and a lower handle 11 which are oppositely arranged. A heating component 30 is provided at the front part of the upper handle and the lower handle, and the heating component is arranged on the opposite surfaces of the upper handle and the lower handle. A control board 40 is arranged inside the rear parts of the upper handle and the lower handle, and a cover plate 12 for covering the control board inside the handle. The cover plate is detachably connected to the upper handle and the lower handle through a buckle. The control board 40 is connected to the heating component and controls the operation of the heating component. A button 20 is connected inside the upper handle. The button includes an adjustment button 200 and a switch button 201. The switch button starts the operation of the hair straightener, and the adjustment button notifies the increase or decrease of the heat of the two groups of heating components at the same time. One end of the upper handle and the lower handle away from the heating component is connected through a rotating shaft 13, so that the heating component parts of the upper handle and the lower handle can move towards each other to clamp or move away from each other to open. The end of the lower handle is connected to a connecting wire 50, and the hair straightener is powered through the connecting wire. A male end 500 is arranged on the connector, and a female end is arranged at the end of the lower handle. The hair straightener can be powered after the male end is inserted into the female end. In order to control the opening angle of the upper handle and the lower handle, the ends of the upper handle and the lower handle are connected through a rotary locking component 60. By rotating the rotary locking component, the maximum opening angle of the upper handle and the lower handle can be adjusted, which is convenient for adjusting the opening angle.

[0032] Specifically, as Figure 4 - Figure 6 shown, the rotary locking component 60 includes a tail cover 602. The tail cover is sleeved on the ends of the upper handle and the lower handle and is close to the rotating shaft. A clamping groove 6021 is arranged on the tail cover. A limiting block 603 is arranged on the upper handle 10 corresponding to the clamping groove. A travel groove 6020 is arranged on the tail cover corresponding to the clamping groove, and the travel groove communicates with the clamping groove. The rotary locking component further includes a tail ring 600 sleeved outside the tail cover. A stop block 6002 is arranged inside the tail ring corresponding to the travel groove. By rotating the tail ring, the stop block can rotate in the travel groove. When it rotates to the clamping groove, the stop block generates a stopping force on the limiting block 603, and the opening of the upper handle relative to the lower handle can be restricted. When it rotates to the other end of the travel groove, the stop block has no stopping force on the limiting block, and at this time, the handle can be normally opened for hair straightening operation.

[0033] Furthermore, as Figure 4 - Figure 6 shown, in order to adjust the opening angle of the upper handle and the lower handle more flexibly, the end face of the limiting block 603 is set as a stop inclined plane 6030. The stop inclined plane is inclined left and right, and the right end is flush with the inner wall of the travel groove. When the stop block rotates to different positions of the stop inclined plane and contacts the limiting block, the maximum opening angle of the upper handle and the lower handle can be restricted. At this time, the upper handle can be opened relative to the lower handle, but the maximum opening angle can be restricted by different positions on the inclined plane, and the adjustment is more flexible.

[0034] Furthermore, as Figure 3 - Figure 4 and Figure 7 - Figure 9As shown, a decorative ring 601 is connected to the tail ring 600. Multiple sets of connecting posts 6000 are provided on the tail ring, and multiple sets of connecting slots 6010 corresponding to the connecting posts are provided on the decorative ring. Part of the decorative ring is sleeved into part of the tail ring, and the connecting posts are inserted into the connecting slots. When the tail ring rotates, the decorative ring rotates synchronously. At the same time, a connecting block 6001 is provided on the inner wall of the tail ring, and a connecting hole 6011 corresponding to the connecting block is provided on the decorative ring. The connecting block is snapped into the connecting hole, which further improves the synchronism of the decorative ring rotating with the tail ring. Multiple sets of gear slots 6012 are also provided on the inner wall of the decorative ring 601, and a gear component 604 is provided on the tail cover corresponding to the gear slots. When the tail ring rotates, the gear component is snapped into different gear slots. At this time, the corresponding stop blocks are placed at different parts of the stop inclined surface to correspond to different opening angles, making the adjustment more convenient and accurately corresponding to different gears corresponding to the opening angles.

[0035] Further, as Figure 8 - Figure 9 shown, the gear component 604 includes a protruding gear post 6040. The gear post rotates in different gear slots. A spring 6042 is provided inside the gear component. When the gear component rotates out of a set of gear slots, the spring is compressed, and when it enters another set of gear slots, the spring resets, making the rotation more gear-feeling. The gear component is connected to the tail cover through a clamping foot 6043 to prevent the gear component from falling off. At the same time, a convex post 6041 is provided, and the convex post is snapped into the tail cover to prevent the gear component from rotating, so that the gear post and the gear slot always remain parallel, making it more convenient to rotate the gear for adjustment.

[0036] Further, as Figure 11 shown, the heating component 30 includes a base 302 and a heat source 301 provided inside the base. A heating surface 300 is provided above the base. The heat of the heat source is transferred to the heating surface to heat the heating surface and then work. A baffle 306 is provided on one side of the base 302, and a plug 304 is provided at the bottom of the heating surface. The heating surface is inserted horizontally through the plug until the end of the heating surface contacts the baffle. An insertion block 303 is connected to the other end of the base. After the heating surface is installed in place, the insertion block can be inserted to fix the heating surface, and it is convenient to disassemble and replace the heating surface. At the same time, clamping blocks 305 are provided at both ends of the base, which facilitates the connection of the heating component to the handle and is also convenient for disassembly, making it easy to replace the heating component.

[0037] It should be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model 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 utility model.

Claims

1. A hair straightener with multiple opening and closing angles, comprising an upper handle and a lower handle. One end of the upper handle and the lower handle is connected by a rotating shaft so that the other ends can move relative to each other. Heating components are provided on the opposite surfaces of the upper handle and the lower handle. A control board connected to the heating components is provided inside the upper handle and / or the lower handle. The hair straightener further includes a button and a connecting wire connected to the control board, and is characterized in that: A rotation locking assembly is provided at the shaft connection end of the upper handle and the lower handle. The rotation locking assembly includes a tail cover sleeved outside the ends of the upper handle and the lower handle, and a tail ring sleeved outside the tail cover. A limiting block is connected inside the tail cover, and a stop block is provided on the inner wall of the tail ring. Rotating the tail ring makes the stop block contact the limiting block to limit the upper handle and the lower handle at several different opening angle positions.

2. The hair straightener according to claim 1, wherein: A clamping groove is provided on the tail cover, and the limiting block is placed in the clamping groove. A travel groove is also provided on the tail cover, and the clamping groove is connected to the travel groove. When the rotating block rotates in the travel groove and contacts the limiting block, the opening angle of the upper handle and the lower handle is limited. When the rotating block rotates in the travel groove and does not contact the limiting block, the opening angle of the upper handle and the lower handle is the largest.

3. The hair straightener according to claim 2, characterized in that: The limiting block is provided with a limiting inclined surface. The rotating block rotates in the travel groove and contacts different places of the limiting inclined surface to adjust the opening angle of the upper handle and the lower handle.

4. The hair straightener according to claim 3, characterized in that: The limiting inclined surface is inclined towards one side of the travel groove, and the end of the limiting inclined surface is flush with the inner wall of the travel groove.

5. The hair straightener according to claim 1, wherein: The rotation locking assembly further includes a decorative ring that rotates synchronously with the tail ring. A plurality of groups of gear slots are provided inside the decorative ring. A gear component is connected to the lower handle. When the gear component is placed in different gear slots, the opening angles of the upper handle and the lower handle are different.

6. The hair straightener according to claim 5, characterized in that: The gear component includes a gear post placed in the gear slot. The gear post is connected to the lower handle through a clamping foot, and the gear post is connected to the lower handle through a spring. When the decorative ring is rotated to place the gear post in the gear slot, the spring resets. When the decorative ring is rotated to place the gear post in a non-gear slot, the spring is compressed.

7. The hair straightener according to claim 6, wherein: The gear component further includes a convex post. The convex post is connected to the lower handle so that the gear component can only move in a direction perpendicular to the lower handle. A plurality of groups of connecting posts are provided on the tail ring, and connecting slots are provided on the decorative ring corresponding to the connecting posts. The connecting posts are inserted into the connecting slots so that the decorative ring rotates synchronously with the tail ring, and / or a connecting block is provided on the inner wall of the tail ring, and a connecting hole is provided on the decorative ring corresponding to the connecting block. The connecting block is placed in the connecting hole so that the decorative ring rotates synchronously with the tail ring.

8. The hair straightener according to any one of claims 1-7, characterized in that: The heating component includes a base, and a heat source provided on the base. The heat source is connected to a control board. A working surface is also provided on the base. After the heat source is heated, the heat is transferred to the working surface to heat the working surface for straightening operation.

9. The hair straightener according to claim 8, wherein: One end of the base is provided with a baffle. Plug pins are provided on the lower side of the working surface. The working surface is connected to the base by inserting the plug pins into the base, and a plug block is provided at the connection. Clamping blocks are provided on both sides of the base, and the heating component is detachably connected to the upper handle and the lower handle through the clamping blocks.

10. The hair straightener according to claim 1, wherein: Cover plates are provided on the upper handle and the lower handle. The cover plates fix the control board, and the cover plates are detachably connected to the upper handle and the lower handle.

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