Hair clamping plate structure with adjustable clamping force

Abstract

The utility model belongs to the technical field of electric heating clamping plates, and particularly relates to a clamping-force-adjustable hair clamping plate structure which comprises an upper clamping plate, a lower clamping plate and a clamping force adjusting mechanism, the upper clamping plate and the lower clamping plate are connected in a rotating mode, and the clamping force adjusting mechanism is arranged between the upper clamping plate and the lower clamping plate. The clamping force adjusting mechanism comprises a swing part, a compression spring, a sliding seat and an extrusion part; one end of the swinging piece is rotationally connected in the upper clamping plate, and the other end is provided with an abutting part; the compression spring is arranged between the abutting part and the lower clamping plate; the sliding seat is slidably connected to the inner side of the upper clamping plate, the extrusion part is arranged at one end of the sliding seat, and the extrusion part is provided with an extrusion face abutting against the swing part and a supporting face supporting the upper clamping plate; the sliding seat is provided with a pushing part extending out of the upper clamping plate and used for pushing the sliding seat to slide, so that the extrusion surface downwards presses the swinging piece or releases the swinging piece; the upper clamping plate is at least provided with gears. The sliding base moves, the extrusion face of the extrusion piece pushes the swing piece to swing downwards to extrude the compression spring, the compression amount of the compression spring is increased, and the clamping force of the upper clamping plate and the lower clamping plate for clamping hair is adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric hair clips, and in particular relates to a hair clip structure with adjustable clamping force. Background Art

[0002] A hair straightener is a commonly used device for straightening and untangling hair. Existing hair straighteners generally include two rotatably connected hair clamps with heaters provided on opposite sides of the hair clamps. When in use, the hair is clamped between the two hair clamps and the heat emitted by the heater drags the hair to straighten or straighten the hair.

[0003] There are two main types of hair straightening or curling tongs available. One type uses a spring to open the two tongs, which are manually clamped together. When clamping hair, the two tongs are manually pressed together to clamp the hair, achieving straight or curly hair. The other type uses a spring to close the two tongs, which are manually opened by pressing them together; this ensures consistent grip on the hair.

[0004] For example, Chinese utility model patent No. CN215737360U discloses a hair straightener. The patent document's technical solution utilizes a spring to achieve the closing of two clamping plates. Specifically, the hair straightener comprises a gripping portion and two clamping assemblies connected to the gripping portion, with the working surfaces of the two clamping assemblies facing each other. One of the clamping assemblies is provided with a block extending toward the other clamping assembly, and the other clamping assembly is provided with a slot adapted to fit the block at a position corresponding to the block. At least one clamping assembly is provided with a boss extending toward the other clamping assembly, the boss being located between the block and the gripping portion. When the two clamping assemblies are closed, the boss creates a gap between the two clamping assemblies. When the two clamping components are closed, the boss can leave a gap between the two clamping components so that they do not fit completely together, thereby reducing the clamping force of the two clamping components on the hair bundle when the two clamping components are closed, and the hair can pass smoothly between the two clamping components, thereby preventing the hair from being over-clamped or even burned; the stopper is arranged on the side of the boss away from the gripping portion, and can contact the other clamping component and be accommodated in the slot before the boss takes effect, thereby preventing the hair from entering the area where the boss is located, thereby avoiding the problem of hair being clamped at the boss or even damaging the hair follicles or scalp during pulling.

[0005] The technical solution in the aforementioned patent document reduces the clamping force by controlling the gap between the two clamping plates. However, when clamping a small amount of hair, the clamping force may be minimal or nonexistent, failing to achieve the desired straight or curly effect. Furthermore, the clamping force cannot be adjusted. Utility Model Content

[0006] The purpose of the utility model is to provide a hair clamping plate structure with adjustable clamping force, which can realize the adjustment of the clamping force of the clamping plate and meet the clamping force requirements of straight hair or curly hair with different hair volumes.

[0007] To achieve the above-mentioned purpose, an embodiment of the present invention provides a hair clamping plate structure with adjustable clamping force, comprising an upper clamping plate and a lower clamping plate rotatably connected, and a clamping force adjusting mechanism, wherein the clamping force adjusting mechanism is arranged between the upper clamping plate and the lower clamping plate, and is used to adjust the rotational clamping force of the upper clamping plate and the lower clamping plate; the clamping force adjusting mechanism comprises a swinging member, a compression spring, a sliding seat and an extrusion member; one end of the swinging member is rotatably connected to the upper clamping plate, and the other end is provided with an abutment portion; the compression spring is arranged between the abutment portion and the lower clamping plate, and is used to support the swinging member; the slide is slidably connected to the inner side of the upper clamping plate, and the extrusion member is arranged at one end of the slide, and the extrusion member is provided with an extrusion surface abutting against the swinging member and a supporting surface supporting the upper clamping plate; the slide is provided with a pushing portion extending from the upper clamping plate, and is used to push the slide to slide, so that the extrusion surface presses down the swinging member or releases the swinging member; the upper clamping plate is also provided with at least two gears for limiting the slide.

[0008] Furthermore, a first limiting column is provided on the inner side of the lower clamping plate, the abutting portion is provided on a second limiting column on the bottom side of the swinging member, and the upper and lower ends of the compression spring are respectively sleeved on the first limiting column and the second limiting column.

[0009] Furthermore, the top side of the upper splint is also provided with an air avoidance groove, and the pushing part extends out from the air avoidance groove; the air avoidance groove forms two side walls, and the bottom side of the side wall is provided with a limiting groove, and at least one inclined step is provided in the limiting groove, and the inclined step and the two ends of the limiting groove form two said gears, or adjacent said inclined steps form one said gear; the pushing part includes a button and a support spring; the button is provided on the slide, and limiting ears are provided on both sides of the button and extend into the limiting groove; the support spring is provided between the slide and the button, and is used to lift the button upward.

[0010] Furthermore, the slide seat includes a main body and a support fastener, and upwardly extending ears are provided at both ends of the support fastener. The main body is provided with a buckle position to limit the hook ear, and the hook ear is limited to the corresponding buckle position. The button is fixed on the main body, and the support spring is provided between the support fastener and the main body; a support member is also provided in the upper splint, and the bottom side of the support fastener is supported on the support member.

[0011] Furthermore, a guide groove is provided on the main body, and the inner side of the upper clamping plate is also a limiting column passing through the guide groove.

[0012] Furthermore, a slide groove is provided at one end of the slide seat, and the extrusion piece is provided with a sliding connection portion limited in the slide groove, so that the extrusion piece slides up and down along the slide groove; a limiting inclined surface is also provided on the inner side of the upper splint for limiting the extrusion piece.

[0013] Furthermore, the extrusion member is connected to a cam at one end of the slide by rotation.

[0014] The above one or more technical solutions of the hair clamp structure with adjustable clamping force provided by the embodiment of the present invention have at least the following technical effects:

[0015] The adjustable-clamping force hair clamp structure of the present invention can adjust the compression of the compression spring by adjusting the sliding position of the slide, thereby adjusting the clamping force of the upper and lower clamps. Specifically, by pushing the slide toward the end of the upper clamp holding the hair, the extrusion member is pulled along with it. The extrusion surface of the extrusion member pushes the abutment portion of the swinging member downward, thereby squeezing the compression spring, thereby increasing the compression of the compression spring and its reaction force; thereby increasing the clamping force of the upper and lower clamps holding the hair. Conversely, the clamping force of the upper and lower clamps holding the hair is reduced. For example, when a small amount of hair is clamped each time, the compression of the compression spring can be increased, and vice versa. Alternatively, the clamping force can be adjusted according to user needs to meet their needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a structural diagram of a hair clamp structure with adjustable clamping force provided by an embodiment of the present utility model.

[0018] Figure 2 A cross-sectional view of a hair clamp structure with adjustable clamping force provided by an embodiment of the present invention.

[0019] Figure 3 A cross-sectional view of a hair clamping plate structure with adjustable clamping force along the side wall of a clearance groove provided by an embodiment of the present invention.

[0020] Figure 4 for Figure 3 A partial enlarged view of .

[0021] Figure 5This is a diagram of the internal structure of the upper plate of the hair clamping plate structure with adjustable clamping force provided by an embodiment of the present utility model.

[0022] Figure 6 This is a structural diagram of the clamping force adjustment mechanism of the hair clamp structure with adjustable clamping force provided by an embodiment of the present invention.

[0023] Figure 7 A cross-sectional view of a clamping force adjustment mechanism of a hair clamp structure with adjustable clamping force provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the embodiments of the present invention, 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 the embodiments of the present invention 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 the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0027] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0028] In one embodiment of the present invention, the clamping force adjustable hair clamp structure, please refer to Figures 1 to 7Specifically, the adjustable clamping force hair clamp structure of this embodiment includes an upper clamping plate 100 and a lower clamping plate 200 that are rotatably connected, and a clamping force adjustment mechanism 300. The clamping force adjustment mechanism 300 is disposed between the upper clamping plate 100 and the lower clamping plate 200 and is used to adjust the rotational clamping force between the upper clamping plate 100 and the lower clamping plate 200. Specifically, the clamping force adjustment mechanism 300 includes a swinging member 310, a compression spring 320, a slide 330, and an extrusion member 340. One end of the swinging member 310 is rotatably connected to the upper clamping plate 100, and the other end is provided with an abutment 311. The compression spring 320 is disposed between the abutment 311 and the lower clamping plate 200 to support the swinging member 310. The slide 330 is slidably connected to the inner side of the upper clamping plate 100. A pressing member 340 is disposed at one end of the slide 330. The pressing member 340 has a pressing surface 341 that abuts the swinging member 310 and a supporting surface 342 that supports the upper clamping plate 100. The slide 330 has a pressing portion 331 extending from the upper clamping plate 100, which is used to push the slide 330 to slide, causing the pressing surface 341 to press down on or release the swinging member 310. The upper clamping plate 100 also has at least two stops 101 for limiting the position of the slide 330. The adjustable clamping force hair clamp structure of this embodiment can adjust the compression of the compression spring 320 by adjusting the sliding position of the slide 330, thereby adjusting the clamping force of the upper clamping plate 100 and the lower clamping plate 200. Specifically, by pushing the slide 330 toward the end of the upper clamp 100 holding the hair, the extruding member 340 is pulled along with it. The extruding surface 341 of the extruding member 340 pushes the abutment portion 311 of the swinging member 310 downward, thereby compressing the compression spring 320. This in turn increases the compression of the compression spring 320 and its reaction force, thereby increasing the clamping force between the upper clamp 100 and the lower clamp 200. Conversely, the clamping force between the upper clamp 100 and the lower clamp 200 decreases. For example, when clamping a small amount of hair at a time, the compression of the compression spring 320 can be increased, while when clamping a smaller amount of hair at a time, the compression of the compression spring 320 can be decreased. Alternatively, the clamping force can be adjusted based on user needs to meet their needs.

[0029] Further, refer to Figures 5 to 7 The lower clamping plate 200 is further provided with a first limiting post 201 on the inner side thereof. The abutting portion 311 is a second limiting post provided on the bottom side of the swinging member 310. The upper and lower ends of the compression spring 320 are respectively sleeved on the first limiting post 201 and the second limiting post, thereby achieving the function of installing and fixing the compression spring 320.

[0030] Further, refer to Figures 1 to 5, the top side of the upper splint 100 is also provided with an air avoidance groove 102, and the pushing part 331 extends from the air avoidance groove 102 to facilitate the operation of the pushing part 331. The air avoidance groove 102 forms two side walls, and the bottom side of the side wall is provided with a limiting groove 103, and at least one inclined step 104 is provided in the limiting groove. The inclined step 104 and the two ends of the limiting groove 103 form two gears 101, or adjacent inclined steps 104 form a gear 101. Specifically, when a inclined step 104 is provided in the limiting groove 103, two gears 101 are formed in the limiting groove 103. If n inclined steps 104 are provided, n+1 gears 101 are formed. The number of inclined steps 104 can be set according to actual needs.

[0031] The push portion 331 includes a button 332 and a support spring 333. The button 332 is disposed on the slide 330. On either side of the button 332 are positioned retaining ears 334 that extend into the retaining groove 103. The support spring 333 is disposed between the slide 330 and the button 332 and is configured to lift the button 332 upward. In this embodiment, when the slide 330 is pushed, the button 332 can be pressed, overcoming the elastic force of the support spring 333, causing the retaining ears 334 to disengage from the inclined step 104, thereby pushing the slide 330 to slide. When the slide 330 reaches the designated gear position 101, the support spring 333 pushes the button 332 back into position, causing the retaining ears 334 to be retained on the end surface of the inclined step 104, thereby limiting and securing the slide 330.

[0032] Further, refer to Figure 3 、 Figure 4 、 Figure 6 and Figure 7 The slide 330 includes a main body 335 and a support fastener 336. Both ends of the support fastener 336 are provided with upwardly extending ears 337. The main body 335 is provided with a buckle position 338 for limiting the hook ear 337. The hook ear 338 is limited on the corresponding buckle position 338. The button 332 is fixed on the main body 335, and the support spring 333 is provided between the support fastener 336 and the main body 335. A support member 110 is also provided in the upper splint 100, and the bottom side of the support fastener 336 is supported on the support member 110. In this embodiment, by pressing the button 332, the main body 335 is pressed downward as a whole, so that the slide 330 can slide and adjust together. In addition, in this embodiment, there is no need to set other complex structures such as guide grooves in the upper splint 100 to limit the slide 330, so that the internal structure of the upper splint 100 can be simpler and more convenient to assemble.

[0033] Further, refer to Figure 5 and Figure 6The body 335 is further provided with a guide groove 339, and the inner side of the upper splint 100 is still a limiting post 120 passing through the guide groove 339. By limiting the slide 330 with the limiting post 120, only the slide 330 can move up and down, avoiding the problem of left and right misalignment.

[0034] Further, refer to Figure 2 and Figure 6 A slide groove 301 is provided at one end of the slide 330, and a sliding connection portion 343 is provided on the extrusion member 340, which is retained within the slide groove 301, allowing the extrusion member 340 to slide up and down along the slide groove 301. A limiting inclined surface 105 is also provided on the inner side of the upper clamping plate 100 for retaining the extrusion member 340. In this embodiment, when the slide 330 drives the extrusion member 340 to move together, the limiting inclined surface 105 pushes the extrusion member 340 downward, allowing the extrusion member 340 to move downward and compress the swinging member 310, which in turn compresses the compression spring 320.

[0035] Furthermore, the extrusion member 340 rotates a cam connected to one end of the slide 330. In this embodiment, when the slide 330 drives the extrusion member 340 to move together, the swinging action of the limiting inclined surface 103 and the swinging member 310 causes the cam to rotate around the connection point, thereby effectively avoiding the problem of sliding friction between the extrusion member 340, the limiting inclined surface 103 and the swinging member 310, and reducing wear.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hair clamping plate structure with adjustable clamping force, comprising an upper clamping plate and a lower clamping plate rotatably connected, characterized in that: The cam is secured to the upper and lower members of the cam frame and is adapted to engage the cam face of the lower member so that the cam face can be engaged with the lower member and engaged with the cam face to engage with the cam face.

2. The hair clamp structure with adjustable clamping force according to claim 1, characterized in that: A first limiting column is further provided on the inner side of the lower clamping plate, and the abutting portion is provided on a second limiting column on the bottom side of the swinging member. The upper and lower ends of the compression spring are respectively sleeved on the first limiting column and the second limiting column.

3. The hair clamp structure with adjustable clamping force according to claim 1, characterized in that: The top side of the upper splint is also provided with an air avoidance groove, and the pushing part extends out from the air avoidance groove; the air avoidance groove forms two side walls, and the bottom side of the side wall is provided with a limiting groove, and at least one inclined step is provided in the limiting groove, and the inclined step and the two ends of the limiting groove form two said gears, or adjacent said inclined steps form one said gear; the pushing part includes a button and a support spring; the button is provided on the slide, and limiting ears are provided on both sides of the button and extend into the limiting groove; the support spring is provided between the slide and the button, and is used to lift the button upward.

4. The hair clamp structure with adjustable clamping force according to claim 3, characterized in that: The slide seat includes a main body and a support fastener, and upwardly extending ears are provided at both ends of the support fastener. The main body is provided with a buckle position for limiting the hook ear, and the hook ear is limited on the corresponding buckle position. The button is fixed on the main body, and the support spring is provided between the support fastener and the main body; a support member is also provided in the upper splint, and the bottom side of the support fastener is supported on the support member.

5. The hair clamp structure with adjustable clamping force according to claim 4, characterized in that: The main body is further provided with a guide groove, and the inner side of the upper clamping plate is also provided with a limiting column passing through the guide groove.

6. The hair clamp structure with adjustable clamping force according to any one of claims 1 to 5, characterized in that: A slide groove is provided at one end of the slide seat, and the extrusion piece is provided with a sliding connection portion limited in the slide groove, so that the extrusion piece slides up and down along the slide groove; a limiting inclined surface is also provided on the inner side of the upper splint for limiting the extrusion piece.

7. The hair clamp structure with adjustable clamping force according to claim 6, characterized in that: The extrusion member is rotatably connected to a cam at one end of the slide.

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