Clamping force adjusting structure of hair clamping plate and electric heating hair straightening and curling device

Abstract

The utility model belongs to the technical field of electric heating clamping plates, and particularly relates to a clamping force adjusting structure of a hair clamping plate and an electric heating hair straightening and curling device. The clamping force adjusting structure of the hair clamping plate is arranged between an upper clamping plate and a lower clamping plate of the electric heating clamping plate and is used for adjusting the rotating clamping force of the upper clamping plate and the lower clamping plate of the electric heating clamping plate; the clamping force adjusting structure of the hair clamping plate comprises a lead screw, a nut and a compression spring. The lead screw is connected with the lower clamping plate, the nut and the compression spring are sequentially arranged on the lead screw in a sleeving mode, the bottom end of the compression spring is supported on the nut, and the upper end of the compression spring supports the upper clamping plate. And the screw rod or the nut is rotated, so that the nut changes the compression amount of the compression spring. Therefore, the compression amount of the compression spring is adjusted, the acting force of the compression spring on the upper clamping plate and the lower clamping plate is adjusted, and the clamping force of the upper clamping plate and the lower clamping plate 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 clamping force adjustment structure and an electric heating hair straightener and hair curler. 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 force adjustment structure and an electric heating hair straightener and hair curler, which can adjust the clamping force of the clamping plate and meet the clamping force requirements of straight hair or hair curling with different hair volumes.

[0007] To achieve the above-mentioned objectives, an embodiment of the present invention provides a hair clamping force adjustment structure, which is arranged between the upper clamping plate and the lower clamping plate of the electric heating clamping plate, and is used to adjust the rotational clamping force of the upper clamping plate and the lower clamping plate of the electric heating clamping plate; the hair clamping force adjustment structure includes a screw rod, a nut and a compression spring; the screw rod is connected to the lower clamping plate, the nut and the compression spring are sequentially sleeved on the screw rod, and the bottom end of the compression spring is supported on the nut, and the upper end supports the upper clamping plate; rotating the screw rod or the nut causes the nut to change the compression amount of the compression spring.

[0008] Furthermore, the screw rod is rotatably connected to the lower clamping plate, and the bottom end of the screw rod extends from the bottom side of the lower clamping plate and is provided with a knob portion; a limiting member is provided on the inner side of the lower clamping plate for limiting the nut so that the nut can only be adjusted up and down.

[0009] Furthermore, grooves are provided on both sides of the nut, and the limiting member includes two limiting columns that slide through the corresponding grooves.

[0010] Furthermore, the screw rod is fixedly connected to the lower clamping plate, and the nut is rotated to adjust the elastic force of the compression spring.

[0011] Furthermore, the nut is provided with a first gear, the lower splint is also provided with a second gear, and a notch is provided on one side of the lower splint to avoid the second gear; the second gear is engaged with the first gear, and the height of the first gear is greater than the height of the second gear.

[0012] Furthermore, a wear-resistant gasket is provided on the top side of the nut, and the bottom end of the compression spring is supported on the gasket.

[0013] Furthermore, the upper end of the screw rod is also provided with a ball sleeve, the top end of the ball sleeve is provided with a spherical surface and supports the upper clamping plate, and the compression spring supports between the ball sleeve and the nut.

[0014] Furthermore, a limiting cavity is provided on the bottom side of the upper clamping plate, the top surface of the limiting cavity is an arc surface, and the ball sleeve is supported in the limiting cavity.

[0015] An electric hair straightener or hair curler includes a hair clamping force adjustment structure, so that the electric hair straightener or hair curler can adjust the clamping force of the hair.

[0016] The above one or more technical solutions in the hair clamping force adjustment structure provided by the embodiment of the present invention have at least the following technical effects:

[0017] The clamping force adjustment structure for the hair clamps of this utility model can adjust the clamping force between the upper and lower clamps. Specifically, by rotating a screw or nut, the nut is adjusted up and down, thereby adjusting the compression of the compression spring, and thus adjusting the force exerted by the compression spring on the upper and lower clamps, thereby adjusting the clamping force of the upper and lower clamps. For example, when clamping a small amount of hair at a time, the compression of the compression spring can be increased, and vice versa. Alternatively, the compression of the compression spring can be reduced. The clamping force can also be adjusted according to user needs to meet their requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 This is a structural diagram of the electric heating splint provided in an embodiment of the utility model.

[0020] Figure 2 A cross-sectional view of an electric heating splint provided in an embodiment of the present utility model.

[0021] Figure 3 This is a structural diagram of the hair clip clamping force adjustment structure of the electric heating clip provided by an embodiment of the present utility model.

[0022] Figure 4 This is a structural diagram of another embodiment of the electric heating splint provided by the embodiment of the utility model.

[0023] Figure 5 A cross-sectional view of another embodiment of the electric heating splint provided by an embodiment of the present invention.

[0024] Figure 6 A cross-sectional view of another embodiment of the electric heating splint provided by an embodiment of the present utility model. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] In one embodiment of the electric heating splint of the present invention, please refer to Figures 1 to 6 Specifically, the electric heating plate of this embodiment includes an upper plate 200, a lower plate 300 and a hair plate clamping force adjustment structure 100. Specifically, the electric heating plate can be a hair straightener plate or a hair straightener plate with hair straightening and curling functions.

[0030] The hair clamping force adjustment structure 100 is located between the upper and lower plates 200, 300 of the electric heated clamp, and is used to adjust the rotational clamping force between the upper and lower plates 200, 300. Specifically, the hair clamping force adjustment structure 100 includes a screw 110, a nut 120, and a compression spring 130. The screw 110 connects to the lower plate 300, while the nut 120 and compression spring 130 are sequentially mounted on the screw 110. The compression spring 130 has its bottom end supported by the nut 120 and its top end supports the upper plate 200. Specifically, by rotating the screw rod 110 or the nut 120, the nut is adjusted up and down, thereby adjusting the compression of the compression spring. Therefore, by changing the compression of the compression spring 130, the elastic supporting force of the compression spring 130 on the upper clamping plate 200 and the lower clamping plate 300 is changed, thereby adjusting the clamping force between the upper clamping plate 200 and the lower clamping plate 300. Therefore, by changing the compression of the compression spring 130, the elastic supporting force of the compression spring 130 on the upper clamping plate 200 and the lower clamping plate 300 is changed, thereby adjusting the clamping force between the upper clamping plate 200 and the lower clamping plate 300. For example, when clamping a small amount of hair at a time, the compression of the compression spring can be increased, and vice versa, the compression of the compression spring can be reduced. Alternatively, the clamping force can be adjusted based on the user's actual needs to meet their requirements.

[0031] Further, refer to Figures 1 to 3 The present invention relates to a specific embodiment of a hair clamping force adjustment structure 100 for adjusting the clamping force of a hair clamp. Specifically, a screw rod 110 is rotatably connected to a lower clamping plate 300. The bottom end of the screw rod 110 extends from the bottom side of the lower clamping plate 300 and is provided with a knob portion 111. A stopper 310 is provided on the inner side of the lower clamping plate 300 for limiting the position of the nut 120 so that the nut 120 can only be adjusted up and down.

[0032] Furthermore, grooves 121 are formed on both sides of the nut 120 , and the limiting member 310 includes two limiting columns that slide through the corresponding grooves 121 .

[0033] Further, refer to Figures 4 to 6 In another specific embodiment of the hair clamp clamping force adjustment structure 100 for adjusting the clamping force, the screw rod 110 is fixedly connected to the lower clamping plate 300, so that the nut 120 can adjust the elastic force of the compression spring 130 by rotating the nut 120.

[0034] Further, participate in Figures 4 to 6, an embodiment of the rotation of the nut 120; specifically, the nut 120 is provided with a first gear 122, and a second gear 140 is also provided within the lower clamping plate 300. A notch 301 is provided on one side of the lower clamping plate 300 to accommodate the second gear 140; the second gear 140 meshes with the first gear 122. Preferably, the height of the first gear 122 is greater than that of the second gear 140. In this embodiment, by rotating the second gear 140, the second gear 140 drives the first gear 122 to rotate, thereby driving the nut 120 up and down, thereby adjusting the supporting elastic force of the compression spring 130.

[0035] Further, refer to Figure 5 and Figure 6 The top side of the nut 120 is also provided with a wear-resistant washer 123, and the bottom end of the compression spring 130 is supported on the washer 123. The washer 123 can avoid the problem of wear on the top of the nut 120.

[0036] Further, refer to Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The upper end of the screw rod 110 is also covered with a ball sleeve 150. The top of the ball sleeve 150 is provided with a spherical surface and supports the upper clamping plate 200. The compression spring 130 is supported between the ball sleeve 150 and the nut 120. In this embodiment, the compression spring 130 can be prevented from directly contacting the upper clamping plate 200. When the upper clamping plate 200 is constantly opened and closed, the wear caused by the compression spring 130 on the upper clamping plate 200 is effectively avoided. In addition, the spherical surface of the ball sleeve 150 supports the upper clamping plate 200, so that the ball sleeve 150 and the upper clamping plate 200 are equivalent to rolling contact, further reducing wear. Moreover, when the upper clamping plate 200 opens and closes, the action of the ball sleeve 150 can effectively avoid the problem of one-sided reception of the compression spring 130, so that the reaction force of the compression spring 130 from the upper clamping plate 200 is more balanced.

[0037] Furthermore, a limiting cavity 201 is provided on the bottom side of the upper clamping plate 200. The top surface of the limiting cavity 201 is a circular arc surface, and the ball sleeve 150 is supported in the limiting cavity 201. The limiting cavity 201 not only limits the ball sleeve 150, but also further reduces friction and wear between the ball sleeve 150 and the upper clamping plate 200.

[0038] 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 force adjustment structure, characterized in that: The hair clamping force adjustment structure is arranged between the upper clamping plate and the lower clamping plate of the electric heating clamping plate, and is used to adjust the rotational clamping force of the upper clamping plate and the lower clamping plate of the electric heating clamping plate; the hair clamping force adjustment structure includes a screw rod, a nut and a compression spring; the screw rod is connected to the lower clamping plate, the nut and the compression spring are sequentially sleeved on the screw rod, and the bottom end of the compression spring is supported on the nut, and the upper end supports the upper clamping plate; rotating the screw rod or the nut causes the nut to change the compression amount of the compression spring.

2. The hair clamping force adjustment structure according to claim 1, characterized in that: The screw rod is rotatably connected to the lower clamping plate, and the bottom end of the screw rod extends from the bottom side of the lower clamping plate and is provided with a knob portion; a limiting member is provided on the inner side of the lower clamping plate for limiting the nut so that the nut can only be adjusted up and down.

3. The hair clamping force adjustment structure according to claim 2, characterized in that: Grooves are provided on both sides of the nut, and the limiting member includes two limiting columns that slide through the corresponding grooves.

4. The hair clamping force adjustment structure according to claim 1, characterized in that: The screw rod is fixedly connected to the lower clamping plate, and the nut is rotated to adjust the elastic force of the compression spring.

5. The hair clamping force adjustment structure according to claim 4, characterized in that: The nut is provided with a first gear, and the lower clamping plate is further provided with a second gear, and a notch is provided on one side of the lower clamping plate to avoid the second gear; the second gear is meshed with the first gear.

6. The hair clamping force adjustment structure according to claim 5, characterized in that: And the height of the first gear is greater than the height of the second gear.

7. The hair clamping force adjustment structure according to any one of claims 4 to 6, characterized in that: A wear-resistant washer is also provided on the top side of the nut, and the bottom end of the compression spring is supported on the washer.

8. The hair clamping force adjustment structure according to any one of claims 1 to 6, characterized in that: The upper end of the screw rod is also sleeved with a ball sleeve, the top end of the ball sleeve is provided with a spherical surface and supports the upper clamping plate, and the compression spring supports between the ball sleeve and the nut.

9. The hair clamping force adjustment structure according to claim 8, characterized in that: A limiting cavity is further provided on the bottom side of the upper clamping plate. The top surface of the limiting cavity is an arc surface, and the ball sleeve is supported in the limiting cavity.

10. An electric hair straightener or hair curler, characterized in that: The hair clip clamping force adjustment structure comprises the hair clip clamping force adjustment structure according to any one of claims 1 to 9.

Images