Automatic hair curler

Abstract

The utility model relates to the field of hairdressing devices, in particular to an automatic hair curler which comprises a handle with an opening end, an electric control device and a driving part electrically connected with the electric control device are arranged in the handle, and the electric control device further comprises a plurality of conductive contacts. The rotating part is rotatably arranged at the open end of the handle, one end of the rotating part is provided with a curling iron, and the other end is in transmission connection with the driving piece; the rotating part comprises a plurality of conductive rings corresponding to the conductive contacts, the plurality of conductive rings are distributed at intervals along the rotating axis of the rotating part, and the outer peripheral surfaces of the conductive rings elastically abut against the conductive contacts; the bearing assembly comprises at least one bearing arranged on the rotating part in a sleeving mode and a bearing fixing base arranged in the handle. According to the hair curler, the bearing is arranged on the rotating part in a sleeving mode and fixed through the bearing fixing base, the running stability of the hair curler in the hair curling process is greatly improved, noise generated by running of the hair curler is effectively reduced, and the hair curler is simple in structure and convenient to produce and install.

Description

Technical Field

[0001] The utility model relates to the field of hairdressing devices, in particular to an automatic hair curling device. Background Art

[0002] With the continuous development of the economy and the continuous improvement of people's living standards, various beauty and hair products are constantly emerging; among them, curling irons are a kind of hairdressing tool, which is often used for female hair styling, and are therefore loved by more and more young women. Its working principle is to use external force to wrap the hair around the curling iron, and the heat generated by the curling iron promotes thermal shaping of the hair to achieve the effect of curling.

[0003] The existing automatic curling iron uses a rotating structure of an annular flange and an annular groove to rotatably set the rotating part inside the handle, and drives the curling iron to rotate through a driving assembly to achieve the purpose of automatic curling. However, the mechanical vibration of the above-mentioned rotating structure is mostly serious during the rotation process, and with the increase of use time and number of times, the gap of the rotating structure will gradually increase, eventually causing the curling iron to be more eccentric and vibrate during the rotation process. There will even be a lot of noise during the curling process, which will greatly affect the curling effect and cause a poor user experience.

[0004] In addition, existing rotating conductive structures mostly use contact springs for elastic contact to achieve electrical connection, but the contact springs have poor stability. As the use time increases, their elastic contact force will gradually decrease, causing the conductive performance of the rotating conductive structure to decrease, and poor contact and other situations may occur easily. Utility Model Content

[0005] In order to solve at least one of the above-mentioned technical problems, the utility model proposes an automatic curling iron, which greatly improves the stability of the curling iron during the curling process and effectively reduces the noise generated by the curling iron. The utility model has a simple structure and is easy to produce and install.

[0006] The technical solution adopted by the utility model is: an automatic hair curler, comprising:

[0007] A handle having an open end, wherein an electric control device and a driving member electrically connected to the electric control device are arranged inside the handle, and the electric control device further comprises a plurality of conductive contacts;

[0008] The rotating part is rotatably arranged at the open end of the handle, one end of the rotating part is provided with a curling iron, and the other end is transmission-connected with the driving member; and the rotating part also includes a plurality of conductive rings corresponding to the conductive contacts, the plurality of conductive rings are spaced apart along the rotating axis of the rotating part, and the outer circumference of the conductive rings is elastically in contact with the conductive contacts;

[0009] The bearing assembly comprises at least one bearing sleeved on the rotating part and a bearing fixing seat arranged inside the handle, and the bearing fixing seat is used for installing the bearing.

[0010] Furthermore, two bearings are provided, and the two bearings are arranged at intervals along the rotation axis of the rotating part.

[0011] Furthermore, the bearing fixing seat includes a first clamping portion and a second clamping portion respectively arranged on both sides of the rotating portion, and the first clamping portion and the second clamping portion cooperate with each other to clamp the outer peripheral surface of the bearing.

[0012] Furthermore, arc grooves are formed on the first clamping part and the second clamping part. When the first clamping part and the second clamping part are in a locked state, the arc grooves abut against the outer peripheral surface of the bearing.

[0013] Furthermore, the arc surfaces corresponding to the arc-shaped grooves on the first clamping portion and the second clamping portion are both minor arcs.

[0014] Furthermore, the bearing fixing seat also includes a connecting seat, and the second clamping portion is fixedly arranged on the connecting seat.

[0015] Furthermore, a side of the connecting seat away from the rotating part also has a mounting plane, and the electric control device also includes a control circuit board fixedly arranged on the mounting plane.

[0016] Furthermore, each conductive ring is provided with at least one conductive contact.

[0017] Furthermore, the conductive contact is a conductive spring pin, which includes a fixed part, a movable part and an elastic part. The movable part is mounted on the fixed part through the elastic part, and the movable part is kept in contact with the outer peripheral surface of the conductive ring under the action of the elastic part.

[0018] Furthermore, a receiving cavity with a top opening is provided on the fixing member, the elastic member is arranged in the receiving cavity, the movable member is movably arranged in the receiving cavity, and is located at one end of the elastic member close to the top opening, and when the elastic member is in a natural state, the top of the movable member protrudes out of the receiving cavity.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model sets a bearing on the rotating part and fixes it through a bearing fixing seat, thereby limiting the axial position of the rotating part during rotation, greatly improving the stability of the curling iron during the curling process, and effectively reducing the noise generated by the curling iron during operation; further, two bearings are provided and spaced apart along the rotation axis of the rotating part, further reducing the mechanical vibration amplitude of the curling iron during the curling process, and enhancing the rotation stability of the curling iron.

[0021] 2. The utility model provides arc grooves on the first clamping part and the second clamping part. In the locked state, the arc grooves abut against the outer peripheral surface of the bearing, so that the bearing is subjected to force more evenly and is not prone to eccentricity, thereby increasing the service life of the bearing; and by setting the arc surfaces corresponding to the arc grooves on the first clamping part and the second clamping part to inferior arcs, the two arc grooves that cooperate and lock with each other do not contact each other, so that the first clamping part and the second clamping part can provide sufficient clamping force for the bearing, avoid displacement of the rotating part, and maintain the stability of the operation of the curling iron.

[0022] 3. The utility model connects the plurality of second clamping parts to each other through a connecting seat, so that the rotation axes of the plurality of bearings overlap and remain consistent, thereby improving the fastening effect of the bearing fixing seat on the bearing, thereby improving the stability of the operation of the curling iron; in addition, the connecting seat can separate the control circuit board from the conductive ring, effectively reducing the risk of short circuit inside the curling iron, thereby increasing the service life of the curling iron.

[0023] 4. When the conductive contact in the utility model abuts against the outer peripheral surface of the conductive ring, the elastic part is compressed to provide an upward return force to the moving part, so that the moving part and the conductive ring are always in an effective contact state, avoiding poor contact and greatly improving the conductive performance of the rotating conductive structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of the automatic hair curler proposed in the embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the exploded structure of the automatic hair curler proposed in an embodiment of the utility model;

[0027] Figure 3 A schematic structural diagram of a bearing fixing seat of an automatic hair curler provided in an embodiment of the utility model;

[0028] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0029] Figure 5 for Figure 2 A schematic diagram of the partially enlarged structure at B in the middle;

[0030] Figure 6This is a schematic diagram of the structure of the rotating part, driving part and conductive spring pin of the automatic hair curler proposed in the embodiment of the utility model;

[0031] Figure 7 This is a schematic structural diagram of the conductive spring pin of the automatic hair curler proposed in an embodiment of the utility model.

[0032] 100-curling iron, 110-hairpin;

[0033] 200-handle, 210-rotating part, 211-conductive ring, 212-conductive spring sheet, 213-first annular flange, 220-bearing, 231-fixed seat, 232-support seat, 233-connecting seat, 234-installing plane, 240-driving member, 250-annular groove, 251-second annular flange, 252-card table, 260-arc groove, 270-coupling, 280-conductive spring pin, 281-fixed member, 2811-accommodating cavity, 2812-first limiting flange, 282-moving member, 2821-second limiting flange, 283-elastic member, 290-control circuit board. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0035] like Figures 1 to 7 As shown, the utility model provides an automatic curling iron, including a handle 200, the handle 200 has an open end, and is used to install a rotating part 210 and a curling rod 100, and an electric control device and a driving member 240 electrically connected to the electric control device are arranged inside the handle 200, and the electric control device controls the operation of the driving member 240 and the temperature of the curling rod 100, and the driving member 240 is a driving motor, which is used to drive the rotating part 210 to rotate;

[0036] The rotating part 210 is rotatably arranged at the open end of the handle 200, wherein the rotatable structure can be a structure that can realize the rotation and limit functions, such as a sliding block slide groove, a slide groove ball, etc. that cooperate with each other. In this embodiment, an annular groove 250 is arranged on the inner side wall of the open end of the handle 200, and a first annular flange 213 is correspondingly arranged on the outer peripheral surface of the rotating part 210. The first annular flange 213 is slidably arranged in the annular groove 250, and the first annular flange 213 and the annular groove 250 are clearance-matched, so that the rotating part 210 is rotatably connected to the open end of the handle 200. Among them, the annular groove 250 includes a second annular flange 251 and a plurality of clamping platforms 252. When the rotating part 210 rotates under the drive of the driving member 240, the first annular flange 213 slides in the annular groove 250 as the rotating part 210 rotates, so that the rotating part 210 does not change its position along the central axis direction during the rotation process.

[0037] The rotating part 210 has a curling rod 100 at one end and is in transmission connection with the driving member 240 at the other end. The rotating part 210 can drive the curling rod 100 to rotate under the drive of the driving member 240. In addition, the rotating part 210 also includes a plurality of conductive rings 211 spaced apart along the rotation axis of the rotating part 210, and the plurality of conductive rings 211 are all electrically connected to the heating rod; the electric control device also includes a plurality of conductive contacts, the plurality of conductive contacts are correspondingly arranged with the plurality of conductive rings 211, and each conductive ring 211 is elastically abutted with at least one conductive contact, so as to realize the rotational electrical connection between the curling rod 100 and the electric control device, and prevent the curling rod 100 from winding during the rotation process.

[0038] Specifically, in the present embodiment, each conductive ring 211 can also be elastically in contact with a plurality of conductive contacts, and the conductive contacts can be structures such as conductive spring pieces 212 or conductive spring pins 280, which can achieve conductive contact between the conductive ring 211 and the electric control device without hindering the rotation of the rotating part 210; the plurality of conductive contacts are elastically in contact with the conductive ring 211, which can effectively avoid poor contact and the like that may cause the curling iron to fail to work properly.

[0039] The bearing assembly includes a bearing 220 sleeved on the rotating part 210 and a bearing fixing seat fixedly arranged on the inner wall of the handle 200. The bearing 220 and the rotating part 210 can be tightly matched, and the position of the bearing 220 is limited by the bearing fixing seat to avoid displacement of the rotating part 210 during rotation, reduce the mechanical vibration amplitude of the rotating part 210 during rotation, greatly enhance the rotation stability of the curling rod 100, reduce the operating noise of the curling iron, increase the service life of the curling iron, and increase the user experience. The number of bearings 220 can be set to one or more, and the rotation axes of all bearings 220 coincide with the rotation axis of the rotating part 210. When the number of bearings 220 is set to multiple, it is preferred to arrange multiple bearings 220 at intervals along the extension direction of the rotation axis of the rotating part 210. The utility model has a simple structure, strong stability, and is extremely convenient to produce and install.

[0040] Specifically, the bearing fixing seat can be a fixing structure such as a clamp, a fixing seat 231 and a support seat 232 that cooperate with each other, which can achieve the fixing effect on the bearing 220 and does not hinder the rotation of the rotating part 210. For example, when the bearing fixing seat is a clamp structure, it can be a clamp structure with both sides fixed by bolts, or a clamp structure with one side hinged and the other side clamped; or the support seat 232 fixedly set on the inner wall of the handle 200 and the fixing seat 231 arranged in cooperation therewith, the two cooperate with each other to lock the bearing 220, so as to achieve the fixing of the bearing 220.

[0041] Specifically, a power socket is also provided at one end of the handle 200 away from the curling rod 100, and the power socket is electrically connected to the electric control device for supplying power to the curling iron. It should be noted that in this embodiment, a power supply can also be provided in the handle 200, and the power socket is used to charge the power supply. A hairpin 110 is also fixedly provided near the handle 200 on the curling rod 100, and the hairpin 110 rotates together with the curling rod 100, and is used to clamp the ends of the hair on the curling rod 100 to achieve the curling function.

[0042] Specifically, a coupling 270 is further provided on the output end of the driving member 240, and the driving member 240 is connected to the rotating part 210 through the coupling 270 to drive the rotating part 210 to rotate, and drive the curling rod 100 to rotate, thereby realizing the automatic curling function of the curling iron; it should be noted that the transmission connection method between the driving member 240 and the rotating part 210 can also adopt other transmission structures such as gear transmission.

[0043] Further, such as Figure 2 , Figure 4 and Figure 6As shown, in this embodiment, two bearings 220 are provided, and the two bearings 220 are spaced apart along the rotation axis of the rotating part 210; preferably, one of the bearings is provided at one end of the rotating part 210 close to the driving motor, and the other is provided at a position of the rotating part 210 close to the open end of the handle 200, and a plurality of spaced apart conductive rings 211 are provided between the two bearings 220. By increasing the distance between the two bearings 220 on the central axis of the rotating part 210, the amplitude of the mechanical vibration of the curling rod 100 during the rotation process is reduced, and the rotation stability of the curling rod 100 is enhanced. However, it should be noted that the two bearings 220 can also be provided at other positions on the rotating part 210 to realize the utility model, and only the stabilization effect is different.

[0044] Further, such as Figures 1 to 5 As shown, the bearing fixing seat includes a first clamping portion and a second clamping portion respectively arranged on both sides of the bearing 220, and the first clamping portion and the second clamping portion cooperate with each other to clamp the bearing 220. It should be noted that at least one of the first clamping portion and the second clamping portion is fixedly arranged inside the handle 200. Specifically, the first clamping portion is a support seat 232 fixedly arranged on the inner side wall of the handle 200, and the second clamping portion is a fixing seat 231 detachably arranged on the inner side wall of the handle 200. Preferably, the support seat 232 is integrally formed with the inner side wall of the handle 200, and the fixing seat 231 is detachably arranged on the inner side wall of the handle 200 by means of threads, clamping, etc. The support seat 232 and the fixing seat 231 are arranged opposite to each other and cooperate with each other to clamp the bearing 220, thereby achieving the fastening of the bearing 220. It should be noted that the utility model can also be realized by detachably setting the fixing seat 231 on the supporting seat 232. For example, the supporting seat 232 and the fixing seat 231 are respectively formed with mounting lugs radially outward, and then the fixing seat 231 and the supporting seat 232 are fixedly connected by corresponding mounting lugs through snaps or bolts, etc., which can also achieve the tightening effect of the bearing 220.

[0045] Further, such as Figures 1 to 3 and Figure 5 As shown, an arc groove 260 is provided on both the first clamping portion and the second clamping portion, and the curvature of the arc groove 260 matches the curvature of the outer peripheral surface of the bearing 220; when the first clamping portion and the second clamping portion are in a locked state, the arc groove 260 abuts against the outer peripheral surface of the bearing 220 and can completely fit with the outer peripheral surface of the bearing 220 to increase the contact area with the bearing 220 in the clamped state and improve the service life of the bearing 220.

[0046] Among them, an anti-slip layer, such as a frosted layer, may be further provided on the arc groove 260 to increase the friction between the bearing 220 and the bearing fixing seat and improve the fastening effect.

[0047] Further, such as Figures 1 to 5As shown, the arc surfaces corresponding to the arc grooves 260 on the first clamping portion and the second clamping portion are both set as inferior arcs. When the bearing fixing seat is in a locked state, there is a gap between the two arc grooves 260 on the first clamping portion and the second clamping portion, and the two arc grooves 260 do not contact each other, so as to increase the locking force of the bearing fixing seat on the bearing 220 and enhance the stability of the operation of the curling iron.

[0048] Further, such as Figure 2 As shown, a mounting plane 234 is provided on the side of the connection seat 233 away from the rotating part 210 for mounting the control circuit board 290. A button cover is provided at the position corresponding to the control circuit board 290 on the handle 200. At this time, the second clamping part is preferably fixedly installed on the inner wall of the handle 200 by bolts to provide sufficient support for the control circuit board 290. In addition, the connection seat 233 is provided between the rotating part 210 and the control circuit board 290, and also has an insulating effect, separating the control circuit board 290 from the rotating electrical connection assembly on the rotating part 210, thereby extending the service life of the curling iron.

[0049] Further, such as Figure 1 , Figure 6 and Figure 7 As shown, in this embodiment, the conductive contact is set as a conductive spring pin 280, wherein the conductive spring pin 280 includes a fixed part 281, a movable part 282 and an elastic part 283, and the fixed part 281 and the movable part 282 are both made of conductive materials. The movable part 282 is mounted on the fixed part 281 through the elastic part 283, and is kept in contact with the outer peripheral surface of the conductive ring 211 under the action of the elastic part 283, and the elastic part 283 continuously provides an upward elastic force to the movable part 282, so that the movable part 282 and the conductive ring 211 maintain sufficient contact strength, thereby avoiding poor contact effect and causing the curling iron to fail to work normally.

[0050] Specifically, the fixing member 281 is provided with a receiving chamber 2811 with a top opening, and a first limiting flange 2812 is formed radially inward at the top opening of the receiving chamber 2811. The moving member 282 is movably arranged in the receiving chamber 2811, and is located at one end of the elastic member 283 close to the top opening, and can move up and down relative to the receiving chamber 2811, and a second limiting flange 2821 is radially arranged at its bottom outward; the first limiting flange 2812 and the second limiting flange 2821 cooperate with each other, so that the moving member 282 cannot be separated from the receiving chamber 2811. The elastic member 283 is arranged in the receiving chamber 2811, one end of which is connected to the bottom of the receiving chamber 2811, and the other end is connected to the bottom of the moving member 282. In the natural state, the elastic member 283 is in a compressed state, which can provide an upward elastic force to the moving member 282, and the top of the moving member 282 protrudes outside the receiving chamber. It should be noted that the movable member 282 can also be a steel ball or the like. When the movable member 282 is a steel ball, the opening diameter at the top opening of the accommodating cavity 2811 is smaller than the diameter of the steel ball. The elastic member 283 makes the steel ball abut against the opening, and the top of the steel ball protrudes out of the accommodating cavity 2811.

[0051] Among them, the elastic member 283 is preferably configured as a spring. When the top of the moving member 282 abuts against the outer peripheral surface of the conductive ring 211, the spring is further compressed and continues to provide an upward elastic force to the moving member 282, so that the moving member 282 and the conductive ring 211 are always in an effective contact state, avoiding poor contact between the conductive ring 211 and the conductive contact.

[0052] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. An automatic hair curler, characterized in that: include: A handle having an open end, wherein an electric control device and a driving member electrically connected to the electric control device are arranged inside the handle, wherein the electric control device further comprises a plurality of conductive contacts; A rotating part is rotatably arranged at the open end of the handle, one end of the rotating part is provided with a curling iron, and the other end is drivingly connected to the driving member; and the rotating part also includes a plurality of conductive rings corresponding to the conductive contacts, the plurality of conductive rings are spaced apart along the rotation axis of the rotating part, and the outer circumference of the conductive ring is elastically in contact with the conductive contact; The bearing assembly comprises at least one bearing sleeved on the rotating part and a bearing fixing seat arranged inside the handle, wherein the bearing fixing seat is used for installing the bearing.

2. The automatic hair curler according to claim 1, characterized in that: The number of the bearings is two, and the two bearings are spaced apart along the rotation axis of the rotating part.

3. The automatic hair curler according to claim 1, characterized in that: The bearing fixing seat includes a first clamping portion and a second clamping portion respectively arranged on both sides of the rotating portion, and the first clamping portion and the second clamping portion cooperate with each other to clamp the outer peripheral surface of the bearing.

4. The automatic hair curler according to claim 3, characterized in that: The first clamping part and the second clamping part are both provided with an arc groove, and when the first clamping part and the second clamping part are in a locked state, the arc groove abuts against the outer peripheral surface of the bearing.

5. The automatic hair curler according to claim 4, characterized in that: The arc surfaces corresponding to the arc grooves on the first clamping portion and the second clamping portion are both minor arcs.

6. The automatic hair curler according to claim 3, characterized in that: The bearing fixing seat also includes a connecting seat, and the second clamping portion is fixedly arranged on the connecting seat.

7. The automatic hair curler according to claim 6, characterized in that: The connecting seat further has a mounting plane on one side away from the rotating part, and the electric control device further comprises a control circuit board fixedly arranged on the mounting plane.

8. The automatic hair curler according to claim 1, characterized in that: Each of the conductive rings is correspondingly provided with at least one conductive contact point.

9. The automatic hair curler according to claim 1, characterized in that: The conductive contact is a conductive spring needle, which includes a fixed part, a movable part and an elastic part. The movable part is installed on the fixed part through the elastic part, and the movable part is kept in contact with the outer peripheral surface of the conductive ring under the action of the elastic part.

10. The automatic hair curler according to claim 9, characterized in that: The fixing member is provided with a receiving cavity with a top opening, the elastic member is arranged in the receiving cavity, the movable member is movably arranged in the receiving cavity and is located at one end of the elastic member close to the top opening, and when the elastic member is in a natural state, the top of the movable member protrudes out of the receiving cavity.

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