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EP-4470419-B1 - GLUE-FREE MAKEUP BRUSH WITH CLAMPING ASSEMBLY

EP4470419B1EP 4470419 B1EP4470419 B1EP 4470419B1EP-4470419-B1

Inventors

  • LIN, YUJU
  • HUANG, JINBO

Dates

Publication Date
20260506
Application Date
20230907

Claims (8)

  1. A makeup brush, comprising: a handle (1); a brush head (2); and a connecting piece (3); characterized in that the brush head (2) comprises bristles (201) and a mounting piece (202); and the bristles (201) are provided on the mounting piece (202); the connecting piece (3) is configured to connect the brush head (2) with the handle (1); and the mounting piece (202) is in snap-fit connection with the connecting piece (3); the connecting piece (3) comprises a clamping assembly (310) and a sleeve (320); the clamping assembly (310) is arranged in the sleeve (320); the mounting piece (202) is in snap-fit connection with an upper end of the clamping assembly (310); and an end of the sleeve (320) away from the mounting piece (202) is removably connected with the handle (1); the clamping assembly (310) comprises a first clamp (311) and a second clamp (312), and the first clamp (311) and the second clamp (312) are removably connected to form an enclosed structure; an inner sidewall of the first clamp (311) and an inner sidewall of the second clamp (312) are each provided with a first groove (3131); the first groove (3131) on the inner side wall of the first clamp (311) is configured to form a circular mounting groove (313) with the first groove (3131) on the inner side wall of the second clamp (312); and the mounting piece (202) is clamped in the circular mounting groove (313); characterized in that : a lower end of the first clamp (311) and a lower end of the second clamp (312) are each provided with an elastic piece (330); an outer side wall of the elastic piece (330) is provided with a protrusion (331); an inner side wall of the sleeve (320) is provided with a second groove (321); and the protrusion (331) is clamped in the second groove (321); and the inner side wall of the first clamp (311) is connected with a disc (3111), and a side wall of the disc (3111) is provided with a third groove (31111); the inner side wall of the second clamp (312) is provided with a convex ring (3121) fitting the third groove (31111); and the convex ring (3121) is clamped in the third groove (31111).
  2. The makeup brush according to claim 1, characterized in that the lower end of the first clamp (311) and the lower end of the second clamp (312) are each provided with a notch (3112) running through the elastic piece (330); and the notch (3112) is configured to increase an elasticity of a lower end of the clamping assembly (310) and an elasticity of the elastic piece (330).
  3. The makeup brush according to claim 1, characterized in that an upper surface of the disc (3111) is flush with a side wall of the circular mounting groove (313) away from the bristles (201); and the disc (3111) is configured to support the mounting piece (202).
  4. The makeup brush according to claim 1, characterized in that the handle (1) comprises a first section (11) and a second section (12); the first section (11) is thicker than the second section (12); the first section (11) and the second section (12) are integrally formed; the first section (11) is removably connected with the sleeve (320); the second section (12) is cylindrical or in a truncated cone shape; an outer diameter of the second section (12) is less than a minimum inner diameter of the sleeve (320); and a height of the second section (12) is greater than a height of the sleeve (320).
  5. The makeup brush according to claim 1, characterized in that a top end of the handle (1) is provided with an external screw thread (111), and a lower end of the sleeve (320) is provided with an internal screw thread (322) fitting the external screw thread (111); and the handle (1) and the sleeve (320) are threadedly connected through the external screw thread (111) and the internal screw thread (322).
  6. The makeup brush according to claim 1, characterized in that the sleeve (320) comprises a first sub-sleeve (324) and a second sub-sleeve (325); the first sub-sleeve (324) and the second sub-sleeve (325) are removably connected to form an enclosed structure; the first sub-sleeve (324) and the first clamp (311) are integrally formed; and the second sub-sleeve (325) and the second clamp (312) are integrally formed.
  7. The makeup brush according to claim 6, characterized in that the second sub-sleeve (325) and the handle (1) are integrally formed, and the first sub-sleeve (324) is insertedly connected with the handle (1).
  8. The makeup brush according to claim 6, characterized in that the handle (1) comprises a first handle portion (13) and a second handle portion (14); the first handle portion (13) and the second handle portion (14) are removably connected to form an enclosed structure; the first sub-sleeve (324) and the first handle portion (13) are integrally formed; and the second sub-sleeve (325) and the second handle portion (14) are integrally formed.

Description

TECHNICAL FIELD This application relates to makeup tools, in particular to a glue-free makeup brush with a clamping assembly. BACKGROUND Makeup brush is one of the commonly-used makeup tools in our daily life. There are currently a wide variety of commercially-available makeup brushes with different functions. However, most of the traditional makeup brushes adopt an integral design, which will be discarded when the bristles can't be used, resulting in a waste of material resources and high production cost. Therefore, these makeup brushes do not meet the requirements of green production. Chinese patent application No. 201520504549.4 provides a makeup brush, including a handle and a brush tube, where an upper end of the handle is a straight cylinder, and a lower end is configured as a cone tail. The straight cylinder is clamped with the brush tube, and then they are fixed with glue. The existing makeup brushes have the following defects. 1. The use of glue for fixing is not eco-friendly, and there is a strong smell after solidified.2. The handle and brush tube are fixed together with the glue, which makes the replacement of the handle inconvenient, resulting in a waste of material resources. Therefore, it is urgently needed to design and develop a novel makeup brush product to solve the above problems, by providing an improved detachable coupling means. US patent publication No. 2022/0125187 A1 and KR 2022 0138734 A discloses a cosmetic brush. The cosmetic brush includes a handle part with a cutout hole portion provided at one side, a brush holder part coupled to the handle part in an area provided with the cutout hole portion, and a brush bristle part detachably coupled to the brush holder part and having a plurality of bristle members. A stopper protrusion in the brush holder part is locked and coupled to an inner wall of the handle part. The cutout hole portion includes a first cutout hole coupled with a coupling protrusion of the brush holder part and a second cutout hole provided to extend downward from the first cutout hole and provided with a smaller width than the first cutout hole. US patent publication No. 2020/0397131 A1 discloses a brush with a replaceable head. The brush includes a handle, a collar releasably coupled to the handle, and a brush head releasably coupled to the collar. The brush head includes a plurality of bristles. The collar includes an engagement member that releasably engages the brush head when the collar is coupled to the handle. SUMMARY In view of the problems in the prior art, the present disclosure provides a novel glue-free makeup brush with a clamping assembly. Technical solutions of the present disclosure are described as follows. This application provides a makeup brush, including: a handle;a brush head; anda connecting piece;wherein, the brush head includes bristles and a mounting piece; the bristles are provided on the mounting piece;the connecting piece is configured to connect the brush head with the handle, and the mounting piece is in snap-fit connection with the connecting piece;the connecting piece includes a clamping assembly and a sleeve; the clamping assembly is arranged in the sleeve; the mounting piece is in snap-fit connection with an upper end of the clamping assembly, and an end away from the mounting piece of the sleeve is removably connected with the handle;the clamping assembly includes a first clamp and a second clamp, and the first clamp and the second clamp are removably connected to form an enclosed structure; an inner side wall of the first clamp and an inner side wall of the second clamp are each provided with a first groove; the first groove on the inner side wall of the first clamp is configured to form a circular mounting groove with the first groove on the inner side wall of the second clamp; and the mounting piece is clamped in the circular mounting groove;wherein a lower end of the first clamp and a lower end of the second clamp are provided with an elastic piece; an outer side wall of the elastic piece is provided with a protrusion; an inner side wall of the sleeve is provided with a second groove and the protrusion of the elastic piece is clamped in the second groove; andthe inner side wall of the first clamp is connected with a disc, and a side wall of the disc is provided with a third groove; the inner side wall of the second clamp is provided a convex ring; the convex ring is fitting with the third groove; and the convex ring is clamped in the third groove. In some embodiments, the inner side wall of the sleeve is provided with a boss, and an upper surface of the boss is flush with a side wall away from the bristles of the second groove. In some embodiments, the lower end of the first clamp and the lower end of the second clamp are each provided with a notch running through the elastic piece. The notch is configured to increase an elasticity of a lower end of the clamping assembly and an elasticity of the elastic piece. In some embodi