A curling iron and a curling diameter level adjusting mechanism thereof

Abstract

The application discloses a curling diameter gear adjusting mechanism, which comprises a plurality of heat-conducting plates radially movably connected to the end face of a handle, a driving assembly for driving the movement of each heat-conducting plate, and a transmission part connected between the driving assembly and each heat-conducting plate, wherein a plurality of limiting assemblies are arranged on the transmission part and used for locking the driving assembly at a target position in the driving stroke of the driving assembly, each limiting assembly comprises a plurality of gear grooves formed on the transmission part and an adjusting rod telescopically connected to the driving assembly and used for forming or disengaging the clamping with any gear groove. The curling diameter gear adjusting mechanism disclosed by the application can conveniently and quickly realize the curling diameter adjustment of a curler and improve the user experience. The curler disclosed by the application has the above-mentioned beneficial effects.

Description

Technical Field

[0001] This invention relates to the field of hair styling equipment technology, and particularly to a mechanism for adjusting the diameter of curling irons. This invention also relates to a curling iron. Background Technology

[0002] A curling iron is a handheld electronic device used to curl hair. Its main components are a handle and a heated roller. The curling iron is designed with a circuit panel to control the temperature, and the heated roller is made of tourmaline ceramic, which evenly distributes heat, circulates heat, improves the hair's protein structure to create curls, and protects the hair quality during the curling process. To use it, the user wraps one or more loops of the hair they want to style around the heated roller, and then turns on the heat.

[0003] Currently, the shape, diameter, and other parameters of the heating cylinders on traditional hair curlers are fixed at the factory and cannot be changed by the user. This results in the hair curler only being able to achieve the same curvature radius, with the hair curls having a monotonous shape, lacking variation and layering, and having poor aesthetics.

[0004] As an improvement, some manufacturers have designed the heating element to be detachable in existing technologies, and have equipped a single handle with multiple sizes of heating elements. This allows users to adjust the curling effect simply by removing the currently installed heating element from the handle and then reinstalling a different size. However, while this type of detachable heating element curler can achieve varying curling effects, the user operation is cumbersome, requiring them to manually remove and install the heating element, which is time-consuming and results in a poor user experience.

[0005] Therefore, how to conveniently and quickly adjust the curling diameter of a hair curler to improve the user experience is a technical problem faced by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a hair curling diameter adjustment mechanism that enables convenient and quick adjustment of the curling diameter of the hair curler, thereby improving the user experience. Another purpose of this invention is to provide a hair curler.

[0007] To solve the above-mentioned technical problems, the present invention provides a hair curling diameter adjustment mechanism, comprising a plurality of heat-conducting plates radially movably connected to the end face of the handle, a drive assembly for driving the movement of each of the heat-conducting plates, and a transmission part connected between the drive assembly and each of the heat-conducting plates. The heat-conducting plates are provided with guide rods, and the transmission part is provided with radial sliding holes that cooperate with the guide rods. The transmission part is provided with a plurality of limiting components for locking the drive assembly at a target position during the drive stroke of the drive assembly. The limiting components include a plurality of position slots formed on the transmission part and an adjusting rod telescopically connected to the drive assembly for engaging or disengaging with any of the position slots.

[0008] Preferably, the limiting component further includes an elastic element disposed on the driving component and connected to the adjusting rod, for automatically extending the adjusting rod to engage with the gear slot by elastic force.

[0009] Preferably, the drive assembly includes an adjustment knob with a receiving groove, the elastic element being disposed in the receiving groove, the upper end of the adjustment rod being slidably mounted in the receiving groove, and the elastic element being connected to the upper end of the adjustment rod.

[0010] Preferably, the drive assembly further includes a rotating plate connected to the adjustment knob, and the transmission part is provided with a plurality of radially extending sliding holes, and the rotating plate is provided with a plurality of arc holes, the radial position of each arc hole gradually changing from one end to the other end; the heat conduction plate is provided with a guide rod, and the guide rod passes through the corresponding sliding hole and extends into the corresponding arc hole.

[0011] Preferably, the lower end of the adjusting rod passes through a through hole on the rotating plate, and a limiting ring is sleeved on the adjusting rod, the limiting ring being used to abut against the upper end surface of the through hole.

[0012] Preferably, each of the gear slots is a toothed slot and / or the lower end of the adjusting rod is an arc surface.

[0013] Preferably, each of the gear slots is distributed between two adjacent sliding holes and is evenly distributed along the circumference of the transmission part.

[0014] Preferably, at least two gear slots are provided on the upper end face of the transmission part.

[0015] The present invention also provides a hair curler, including a handle and a hair curling diameter adjustment mechanism connected to the handle, wherein the hair curling diameter adjustment mechanism is specifically the hair curling diameter adjustment mechanism described in any of the above claims.

[0016] The hair curling diameter adjustment mechanism provided by this invention mainly includes a heat-conducting plate, a driving assembly, a transmission part, and a limiting assembly. The limiting assembly further includes a setting groove and an adjusting rod. The heat-conducting plates are connected to the end face of the handle, and generally at least two are provided. Each heat-conducting plate can move synchronously along a specific radial direction of the handle end face, thus creating a synchronous gathering and expansion effect, thereby synchronously changing the curling diameter. The driving assembly is mainly used to drive each heat-conducting plate to move radially on the end face of the handle. The transmission part is connected between the driving assembly and each heat-conducting plate, mainly used to realize the power transmission of the driving assembly, thereby transmitting the power of the driving assembly to each heat-conducting plate. The limiting assembly is specifically set on the transmission part, mainly used to lock the driving assembly at the target position during its driving stroke, realizing multiple pauses of the driving assembly during its driving stroke, and thus enabling each heat-conducting plate to have multiple dwelling positions during its radial movement on the handle end face. Different dwelling positions in the radial direction represent different curling diameters. The gear slots are located on the transmission unit, and multiple slots are typically provided. They are primarily used to pause the drive assembly at various stopping positions, thereby achieving multi-level adjustment of the curling diameter. The adjusting rod is connected to the drive assembly and is telescopic. It is used to engage with any gear slot when extended, or to disengage from the current gear slot when retracted. Thus, the curling diameter adjustment mechanism provided by this invention, through the cooperation of the gear slots and the adjusting rod, allows the drive assembly to pause multiple times during its drive stroke. This results in multiple stopping positions for each heating plate during its radial movement on the handle end face. Different stopping positions represent different curling diameters, thus achieving multi-level adjustment of the curling diameter. Compared to existing technologies, the curling diameter adjustment mechanism provided by this invention allows for convenient and quick adjustment of the curling diameter of the curling iron, improving the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0019] Figure 2 for Figure 1 Exploded view.

[0020] Figure 3 for Figure 1 A partial structural cross-sectional view.

[0021] Figure 4 for Figure 3 A partial structural cross-sectional view.

[0022] Figure 5 This is a schematic diagram of the upper end face of the transmission part.

[0023] Figure 6 This is a schematic diagram of the lower end face of the transmission unit.

[0024] Figure 7 This is a schematic diagram of the specific structure of the rotating plate.

[0025] Figure 8 This is a schematic diagram of the installation structure of the rotating plate inside the adjustment knob.

[0026] Figure 9 for Figure 8 Exploded view.

[0027] Figure 10 for Figure 8 Top view.

[0028] Figure 11 for Figure 10 The diagram shows a cross-section AA.

[0029] Figure 12 This is a schematic diagram of the hair curling diameter adjustment mechanism in its first setting.

[0030] Figure 13 This is a schematic diagram of the hair curling diameter adjustment mechanism in its second setting.

[0031] Figure 14 This is a schematic diagram of the hair curling diameter adjustment mechanism in its third position.

[0032] in, Figure 1 — Figure 14 middle:

[0033] Handle—1, Heat conduction plate—2, Fixed column—3, Transmission part—4, Rotating plate—5, Adjustment knob—6, Adjustment rod—7, Rotating shaft—8;

[0034] Guide rod—21, sliding hole—41, stop groove—42, arc hole—51, through hole—52, receiving groove—61, elastic element—62, connecting hole—63, limit ring—71. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention. Figure 2 for Figure 1 Explosion diagram, Figure 3 for Figure 1 A partial structural sectional view, Figure 4 for Figure 3 A partial structural cross-sectional view.

[0037] In one specific embodiment of the present invention, the hair curling diameter adjustment mechanism mainly includes a heat-conducting plate 2, a driving component, a transmission part 4, and a limiting component, and the limiting component includes a position groove 42 and an adjustment rod 7.

[0038] The heat-conducting plate 2 is connected to the end face of the handle 1. Generally, at least two heat-conducting plates 2 are provided, and each heat-conducting plate 2 can move synchronously along a specific radial direction of the end face of the handle 1, thus forming a synchronous gathering and synchronous expansion effect, thereby synchronously changing the diameter of the curl.

[0039] The drive assembly is mainly used to drive each heat-conducting plate 2 to move radially on the end face of the handle 1.

[0040] The transmission unit 4 is connected between the drive assembly and each heat-conducting plate 2, and is mainly used to realize the power transmission of the drive assembly, thereby transmitting the power of the drive assembly to each heat-conducting plate 2.

[0041] The limiting component is specifically set on the transmission part 4. It is mainly used to lock the drive component at the target position during the drive stroke, so as to realize the drive component pauses multiple times during the drive stroke, thereby realizing that each heat conduction plate 2 has multiple dwelling positions during the radial movement of the handle 1 end face. Different dwelling positions in the radial direction represent different curling diameters.

[0042] The gear slot 42 is provided on the transmission part 4, and there are usually multiple slots. It is mainly used to realize the pause of the drive component at each dwelling position, thereby realizing the multi-level division of the curl diameter.

[0043] The adjusting rod 7 is connected to the drive assembly and can extend and retract. It is mainly used to engage with any gear slot 42 when extended, or to disengage from the current gear slot 42 when retracted.

[0044] Thus, the hair diameter adjustment mechanism provided in this embodiment, through the cooperation of the position groove 42 and the adjustment rod 7, enables the drive component to pause multiple times during the drive stroke, thereby allowing each heat conduction plate 2 to have multiple dwelling positions during the radial movement of the handle 1 end face. Different dwelling positions represent different hair diameters, thus realizing multi-level adjustment of hair diameter.

[0045] Compared to existing technologies, the hair curling diameter adjustment mechanism provided in this embodiment can conveniently and quickly adjust the hair curling diameter of the curling iron, improving the user experience.

[0046] Furthermore, to facilitate the installation and connection of the drive assembly on the handle 1, a fixing post 3 is added in this embodiment. Specifically, the fixing post 3 is erected on the end face of the handle 1, and the transmission part 4 is connected to the upper end of the fixing post 3.

[0047] In one alternative embodiment of the drive assembly, the drive assembly mainly includes an adjustment knob 6 and a rotating plate 5. The rotating plate 5 is disposed on the upper surface of the transmission part 4 and is capable of rotational movement. The adjustment knob 6 is generally also disposed on the transmission part 4 and connected to the rotating plate 5, mainly used to drive the rotating plate 5 to rotate synchronously through its own rotational movement generated by the user's turning operation.

[0048] To facilitate the radial movement of the drive assembly on each heat-conducting plate 2, in this embodiment, a guide rod 21 is added to each heat-conducting plate 2, and a sliding hole 41 is opened on the transmission part 4, and an arc hole 51 is opened on the rotating plate 5.

[0049] The guide rod 21 is set on the upper surface of each heat-conducting plate 2.

[0050] Sliding holes 41 are formed on the transmission part 4, and generally multiple sliding holes 41 are formed simultaneously. Each sliding hole 41 extends along the moving direction of its corresponding heat-conducting plate 2, that is, along a specific radial direction of the transmission part 4. At the same time, each guide rod 21 is inserted into its corresponding sliding hole 41 to form a sliding guide fit. Generally, the number of sliding holes 41 is the same as the number of guide rods 21, and the two correspond one-to-one.

[0051] Arc holes 51 are formed on the rotating plate 5, and multiple arc holes are generally formed simultaneously. The radial position (or distance from the center) of each arc hole 51 gradually changes from one end to the other. Each guide rod 21 passes through the corresponding sliding hole 41 and extends into the corresponding arc hole 51 to form a sliding contact fit. Generally, the number of arc holes 51 is the same as the number of sliding holes 41, and the arc holes 51, sliding holes 41, and guide rods 21 correspond one-to-one.

[0052] Thus, when the user turns the adjustment knob 6, the rotating plate 5 generates a corresponding rotational motion. As each arc hole 51 rotates synchronously with the rotating plate 5, due to the gradual change in its radial position and the abutting force between it and the guide rod 21, it will gradually drive the guide rod 21 to slide and radially displace within the corresponding sliding hole 41. This causes the guide rod 21 to drive the corresponding heat-conducting plate 2 to slide synchronously, ultimately achieving the synchronous convergence or synchronous expansion effect of all heat-conducting plates 2, thereby achieving the purpose of adjusting the diameter of the curl.

[0053] like Figure 5 , Figure 6 As shown, Figure 5 This is a schematic diagram of the upper end face of the transmission unit 4. Figure 6 This is a schematic diagram of the lower end face of the transmission part 4.

[0054] The gear slots 42 are formed on the upper surface of the transmission part 4. Generally, at least two slots are formed at the same time, such as two to four or more slots. Each gear slot 42 is distributed on the transmission part 4 along its circumferential direction.

[0055] The adjusting rod 7 is connected to the rotating plate 5 and can move vertically on the rotating plate 5. It is mainly used to cooperate with each gear slot 42 to form a snap-fit, thereby fixing the rotating plate 5 in the current rotation position or state.

[0056] Thus, when the rotating plate 5 rotates, it will drive the adjusting rod 7 to rotate synchronously. The adjusting rod 7 can disengage from the gear slot 42 by rising vertically or engage with the gear slot 42 by falling vertically. Thus, during the rotation of the rotating plate 5, the adjusting rod 7 can selectively engage with any gear slot 42 to fix the rotating plate 5 at a specific rotation position. Furthermore, since each gear slot 42 is distributed along the circumferential direction of the transmission part 4, each gear slot 42 is equivalent to dividing the circumferential rotation of the rotating plate 5 into several gears or levels. Different gears represent different rotation positions of the rotating plate 5, which in turn represent different radial movement positions of the heat-conducting plate 2, ultimately resulting in different curling diameters, thus realizing stepped adjustment of the curling diameter.

[0057] like Figure 12 , Figure 13 , Figure 14 As shown, Figure 12This is a schematic diagram showing the hair curling diameter adjustment mechanism in its first setting. Figure 13 This is a schematic diagram showing the hair curling diameter adjustment mechanism in its second setting. Figure 14 This is a schematic diagram of the hair curling diameter adjustment mechanism in its third position.

[0058] Taking an example where there are 3 gear slots 42 on the transmission part 4, meaning there are a total of 3 gears:

[0059] When the adjusting rod 7 engages with the first gear slot 42, the guide rod 21 remains at the inner end of the arc hole 51 and also at the inner end of the sliding hole 41. At this time, each heat-conducting plate 2 remains in its initial state, and the curling diameter is at its minimum value. When the adjusting rod 7 engages with the second (middle) gear slot 42, the guide rod 21 remains at the middle position of the arc hole 51 and also at the middle position of the sliding hole 41. At this time, each heat-conducting plate 2 moves outward synchronously along its respective radial direction by a certain distance, and the curling diameter is appropriately increased. When the adjusting rod 7 engages with the third gear slot 42, the guide rod 21 remains at the outer end of the arc hole 51 and also at the outer end of the sliding hole 41. At this time, each heat-conducting plate 2 moves outward synchronously along its respective radial direction to its limit position, and the curling diameter is at its maximum value.

[0060] like Figure 7 , Figure 8 As shown, Figure 7 This is a schematic diagram of the specific structure of the rotating plate 5. Figure 8 This is a schematic diagram of the installation structure of the rotating plate 5 inside the adjusting knob 6.

[0061] Furthermore, to facilitate stable installation of the adjusting rod 7, this embodiment provides a receiving groove 61 on the inner wall of the adjusting knob 6. Specifically, the receiving groove 61 extends vertically, and the upper end of the adjusting rod 7 is installed within the receiving groove 61, allowing it to slide vertically within the groove. Simultaneously, the lower end of the adjusting rod 7 passes through the through hole 52 on the rotating plate 5, enabling it to smoothly engage with the gear slot 42. With this configuration, the adjusting rod 7 can be installed within the receiving groove 61, and its vertical sliding movement within the groove allows it to pass through the rotating plate 5 and engage with the receiving groove 61.

[0062] like Figure 9 , Figure 10 , Figure 11 As shown, Figure 9 for Figure 8 Explosion diagram, Figure 10 for Figure 8 Top view, Figure 11 for Figure 10 The diagram shows a cross-section AA.

[0063] Furthermore, to facilitate the automatic vertical lifting and lowering movement of the adjusting rod 7 within the receiving groove 61, an elastic element 62 is added in this embodiment. Specifically, the elastic element 62 is arranged vertically within the receiving groove 61, with its elastic deformation direction along the vertical direction. One end of the elastic element 62 abuts against the bottom of the receiving groove 61, while the other end abuts against the upper end of the adjusting rod 7. In its natural state, the elastic element 62 exerts a vertically outward or downward elastic preload on the adjusting rod 7. This configuration utilizes the elastic preload of the elastic element 62 to ensure a stable engagement between the lower end of the adjusting rod 7 and the gear slot 42. Simultaneously, when the user rotates the adjusting knob 6, the lower end of the adjusting rod 7 abuts against the wall of the gear slot 42, overcoming the elastic force of the elastic element 62 and gradually disengaging from the current gear slot 42. When rotated to another gear slot 42, the elastic force of the elastic element 62 causes it to re-engage with that slot. Generally, the elastic element 62 can be a spring or similar component.

[0064] To facilitate a smooth transition of contact between the lower end of the adjusting rod 7 and the groove wall of the gear slot 42, in this embodiment, each gear slot 42 is a toothed groove with a sloped or inclined curved surface as its groove wall, or the lower end of the adjusting rod 7 is specifically spherical or convex. Of course, the gear slot 42 being a toothed groove and the lower end of the adjusting rod 7 being spherical can also be provided simultaneously.

[0065] Furthermore, to ensure uniform adjustment across all gear positions, in this embodiment, each gear position slot 42 is specifically distributed within a fan-shaped area between two adjacent sliding holes 41 on the transmission part 4, and each gear position slot 42 is evenly distributed along the circumferential direction of the transmission part 4. This arrangement ensures that adjacent gear position slots 42 are spaced by the same central angle, thereby guaranteeing that the rotating plate 5 rotates by the same angle between adjacent gear positions, and that each heat-conducting plate 2 generates the same radial displacement.

[0066] In addition, to prevent the adjusting rod 7 from directly dislodging from the through hole 52 on the rotating plate 5 under the elastic force of the elastic member 62, a limiting ring 71 is added to the adjusting rod 7 in this embodiment. Specifically, the limiting ring 71 is sleeved on the adjusting rod 7, forming a collar structure of the adjusting rod 7, and is mainly used to abut against the upper end face of the through hole 52 of the rotating plate 5, thereby preventing the limiting ring 71 from dislodging from the through hole 52. Correspondingly, one end of the elastic member 62 can then abut against the upper end face of the limiting ring 71.

[0067] To facilitate the power connection between the adjustment knob 6 and the rotating plate 5, a rotating shaft 8 is added in this embodiment. Specifically, the rotating shaft 8 is inserted into the fixed post 3 and extends along the axial or longitudinal direction of the fixed post 3, and can rotate within the rotating shaft 8. Simultaneously, the upper end of the rotating shaft 8 is inserted into the adjustment knob 6 and fixedly connected to it, while a connecting hole 63 is provided in the adjustment knob 6 to mate with the rotating shaft 8. Correspondingly, the rotating plate 5 is fixedly sleeved on the rotating shaft 8, while the transmission part 4 is rotatably sleeved on the rotating shaft 8. With this configuration, when the adjustment knob 6 is turned, the torque can be transmitted to the rotating plate 5 through the rotating shaft 8, while the transmission part 4, movably sleeved on the rotating shaft 8, remains stationary.

[0068] This embodiment also provides a hair curler, which mainly includes a handle 1 and a hair curling diameter adjustment mechanism connected to the handle 1. The specific content of the hair curling diameter adjustment mechanism is the same as the above-mentioned related content, and will not be repeated here.

[0069] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hair curling diameter adjustment mechanism, characterized in that, It includes multiple heat-conducting plates (2) that are radially movable and connected to the end face of the handle (1), a drive assembly for driving each heat-conducting plate (2) to move, and a transmission part (4) connected between the drive assembly and each heat-conducting plate (2). The transmission part (4) is provided with a number of limiting components for locking the drive assembly at a target position during the drive stroke. The limiting components include a number of position slots (42) opened on the transmission part (4) and an adjusting rod (7) that is telescopically connected to the drive assembly for forming or disengaging from any of the position slots (42). The limiting component also includes an elastic element (62) disposed on the driving component and connected to the adjusting rod (7), for automatically extending the adjusting rod (7) to engage with the gear slot (42) by elastic force; The drive assembly includes an adjustment knob (6), which has a receiving groove (61). An elastic element (62) is disposed in the receiving groove (61), and the upper end of the adjustment rod (7) is slidably installed in the receiving groove (61). The elastic element (62) is connected to the upper end of the adjustment rod (7).

2. The hair curling diameter adjustment mechanism according to claim 1, characterized in that, The drive assembly also includes a rotating plate (5) connected to the adjustment knob (6), and the transmission part (4) is provided with a plurality of radially extending sliding holes (41), and the rotating plate (5) is provided with a plurality of arc holes (51), the radial position of each arc hole (51) gradually changes from one end to the other end; the heat conduction plate (2) is provided with a guide rod (21), and the guide rod (21) passes through the corresponding sliding hole (41) and extends into the corresponding arc hole (51).

3. The hair curling diameter adjustment mechanism according to claim 2, wherein the lower end of the adjustment rod (7) passes through the through hole (52) on the rotating plate (5), characterized in that, A limiting ring (71) is sleeved on the adjusting rod (7), and the limiting ring (71) is used to abut against the upper end surface of the through hole (52).

4. The hair curling diameter adjustment mechanism according to claim 1, characterized in that, Each of the gear slots (42) is a toothed slot and / or the lower end of the adjusting rod (7) is an arc surface.

5. The hair curling diameter adjustment mechanism according to claim 2, characterized in that, Each of the gear slots (42) is distributed between two adjacent sliding holes (41) and is evenly distributed along the circumference of the transmission part (4).

6. The hair curling diameter adjustment mechanism according to claim 1, characterized in that, At least two gear slots (42) are provided on the upper end face of the transmission part (4).

7. A hair curler, comprising a handle (1) and a hair curling diameter adjustment mechanism connected to the handle (1), characterized in that, The hair curling diameter adjustment mechanism is specifically the hair curling diameter adjustment mechanism as described in any one of claims 1-6.

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