Glue-free cosmetic brush

Abstract

The glue-free cosmetic brush comprises a brush head, a connecting piece and a brush rod, the brush head comprises bristles and a base, the base is arranged at one end of the bristles, and the base is formed by extending outwards in the circumferential direction of the bristles; a first containing cavity and a second containing cavity which are communicated are formed in the connecting piece, the diameter of the first containing cavity is smaller than that of the second containing cavity, the bristle part is located in the first containing cavity, a first mounting groove is formed in the side wall of the second containing cavity, the first mounting groove is formed in the circumferential direction of the second containing cavity in a surrounding mode, and the first mounting groove is used for mounting the base. A second mounting groove is formed in the side wall of the second accommodating cavity, and the second mounting groove is arranged in a surrounding manner in the circumferential direction of the second accommodating cavity; a first protrusion is arranged at one end of the brush rod, the first protrusion is arranged in the circumferential direction of the brush rod in a surrounding mode, and the first protrusion is used for being clamped into the second mounting groove. According to the brush, the brush head and the brush rod can be detachably connected without using glue, and the brush head and the brush rod can be conveniently replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetic equipment, in particular to a glue-free cosmetic brush. Background Art

[0002] Makeup brushes are one of the most commonly used cosmetic products and are also an essential makeup tool. Currently, there are many types of makeup brushes with rich functions. However, most traditional makeup brushes adopt an integrated design structure. When the bristles cannot be used, the entire brush rod will be discarded. This not only leads to a waste of material resources, but also makes the cost of makeup brushes high, which does not meet the current requirements of environmentally friendly production. Chinese patent CN201520504549.4 provides a makeup brush, including a brush handle and a brush tube. The upper end of the brush handle is a cylindrical straight portion, and the lower end is a tapered tail. The straight portion is clamped to the brush tube and then fixed by glue.

[0003] Therefore, the existing technology has deficiencies:

[0004] 1. Using glue to fix is ​​not environmentally friendly, and there is a strong odor after the glue cures;

[0005] 2. The brush handle and the brush tube are fixed together by glue, which makes the brush handle not easy to replace, resulting in a waste of material resources.

[0006] Therefore, the existing technology has deficiencies and a new device needs to be provided to solve the above problems. Summary of the Invention

[0007] Based on this, it is necessary to provide a glue-free makeup brush with a glue-free combined buckle.

[0008] A glue-free makeup brush, comprising:

[0009] A brush head, comprising bristles and a base, wherein the base is provided at one end of the bristles and extends outwardly along the circumference of the bristles;

[0010] A connecting member, wherein a first accommodating cavity and a second accommodating cavity are formed in the interior of the connecting member, the diameter of the first accommodating cavity is smaller than the diameter of the second accommodating cavity, the bristle portion is located in the first accommodating cavity, a first mounting groove is formed on the side wall of the second accommodating cavity, the first mounting groove is arranged around the circumference of the second accommodating cavity, the first mounting groove is used to install the base, and a second mounting groove is formed on the side wall of the second accommodating cavity, the second mounting groove is arranged around the circumference of the second accommodating cavity;

[0011] A brush rod, one end of which is provided with a first protrusion, the first protrusion being arranged around the circumference of the brush rod, and the first protrusion being used to be clamped into the second mounting groove.

[0012] Optionally, the connecting member also includes a second protrusion, which is circumferentially arranged along the side wall of the second accommodating cavity, and the second protrusion is arranged between the first mounting groove and the second mounting groove. The second protrusion and the second accommodating cavity are combined to form the first mounting groove, and the end of the base away from the bristles is used to abut against the second protrusion.

[0013] Optionally, the second mounting groove is continuously arranged around the circumference of the second accommodating cavity.

[0014] Optionally, the diameter of the first mounting groove is equal to the diameter of the second accommodating cavity, and the diameter of the second mounting groove is greater than the diameter of the second accommodating cavity.

[0015] Optionally, there are multiple second mounting grooves, and the multiple second mounting grooves are arranged at intervals in the circumferential direction around the second accommodating cavity.

[0016] Optionally, there are multiple first protrusions, and the multiple first protrusions are arranged at intervals in the circumferential direction around the brush rod.

[0017] Optionally, the connecting member also includes a third protrusion, which is arranged on the side wall of the second accommodating cavity, the third protrusion extends along the axial direction of the second accommodating cavity, and the third protrusion is arranged between two adjacent second mounting grooves. A third mounting groove is provided at one end of the brush rod, and the third mounting groove extends along the axial direction of the brush rod, and the third mounting groove is used to snap into the third protrusion.

[0018] Optionally, there are multiple third mounting grooves, and the multiple third mounting grooves are arranged at intervals in the circumferential direction around the brush rod.

[0019] Optionally, there are multiple third protrusions, and the multiple third protrusions are arranged at circumferential intervals around the second accommodating cavity.

[0020] Optionally, the diameter of the first mounting groove is larger than the diameter of the second accommodating cavity, and the diameter of the second mounting groove is larger than the diameter of the second accommodating cavity.

[0021] The present application provides a glue-free makeup brush, comprising a brush head, a connector and a brush rod. A first mounting groove and a second mounting groove are provided in the second accommodating cavity of the connector, the bristle portion is located in the first accommodating cavity, and the base is snapped into the first mounting groove. The brush head can be mounted on the connector without using glue. A first protrusion is provided around one end of the brush rod, and the first protrusion is snapped into the second mounting groove, thereby realizing the connection between the connector and the brush rod and enabling convenient replacement of the brush head and the brush rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description 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 the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of the glue-free cosmetic brush in Example 1;

[0024] Figure 2 Schematic diagram of the structure of the connecting member in Example 1;

[0025] Figure 3 is a cross-sectional view of the connecting member in Example 1;

[0026] Figure 4 Schematic diagram of the structure of the brush rod in Example 1;

[0027] Figure 5 is a cross-sectional view of the glue-free cosmetic brush in Example 1;

[0028] Figure 6 for Figure 5 A magnified schematic diagram of point A;

[0029] Figure 7 This is a schematic structural diagram of the glue-free cosmetic brush in Example 2;

[0030] Figure 8 A top view of the glue-free cosmetic brush in Example 2;

[0031] Figure 9 This is a schematic structural diagram of the glue-free cosmetic brush in Example 3;

[0032] Figure 10 This is a schematic structural diagram of the connecting member in Example 3;

[0033] Figure 11 This is a schematic structural diagram of the brush rod in Example 3;

[0034] Figure 12 is a cross-sectional view of the glue-free cosmetic brush in Example 3;

[0035] Figure 13 for Figure 12 Enlarged schematic diagram of point B.

[0036] 1. Brush head; 11. Bristles; 12. Base; 2. Connector; 21. First accommodating cavity; 22. Second accommodating cavity; 221. Side wall; 222. Top wall; 23. First mounting slot; 24. Second mounting slot; 25. Second protrusion; 26. Third protrusion; 3. Brush rod; 31. First protrusion; 32. Insertion end; 33. Main body end; 331. First brush rod; 332. Second brush rod; 333. Third brush rod; 34. Third mounting slot.

[0037] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] refer to Figures 1-13The present application provides a glue-free cosmetic brush, which includes a brush head 1, a connecting member 2 and a brush rod 3. The brush head 1 includes bristles 11 and a base 12. The base 12 is arranged at one end of the bristles 11, and the base 12 extends outward along the circumference of the bristles 11; the connecting member 2 is cylindrical, and a first accommodating cavity 21 and a second accommodating cavity 22 are provided in the interior thereof. The first accommodating cavity 21 and the second accommodating cavity 22 are arranged to pass through the axial direction of the connecting member 2. The diameter of the first accommodating cavity 21 is smaller than the diameter of the second accommodating cavity 22. The bristles 11 are provided at the bottom of the brush head 11. The base 12 extends outward along the circumference of the bristles 11. The connecting member 2 is cylindrical, and a first accommodating cavity 21 and a second accommodating cavity 22 are provided in the interior thereof. The first accommodating cavity 21 and the second accommodating cavity 22 are provided to pass through the axial direction of the connecting member 2. The diameter of the first accommodating cavity 21 is smaller than the diameter of the second accommodating cavity 22. Part of it is located in the first accommodating cavity 21, and a first mounting groove 23 is provided on the side wall 221 of the second accommodating cavity 22. The first mounting groove 23 is arranged around the circumference of the second accommodating cavity 22, and the first mounting groove 23 is used to install the base 12. A second mounting groove 24 is provided on the side wall 221 of the second accommodating cavity 22, and the second mounting groove 24 is arranged around the circumference of the second accommodating cavity 22; a first protrusion 31 is provided at one end of the brush rod 3, and the first protrusion 31 is arranged around the circumference of the brush rod 3, and the first protrusion 31 is used to be clamped into the second mounting groove 24.

[0042] The present application provides a glue-free cosmetic brush, which connects the brush head 1 and the brush rod 3 together by providing a connecting member 2, eliminating the need for glue bonding and being more environmentally friendly. The base 12 of the brush head 1 is clamped in the first mounting groove 23 of the connecting member 2, thereby realizing the clamping of the brush head 1 relative to the connecting member 2. When the brush head 1 needs to be replaced, the brush rod 3 is removed. Since the diameter of the first accommodating cavity 21 is smaller than the diameter of the second accommodating cavity 22, an external force is applied to the brush head 1 to move the brush head 1 out of the first accommodating cavity 21 or out of the second accommodating cavity 22, thereby realizing convenient replacement of the brush head 1. When the brush rod 3 needs to be replaced, the first protrusion 31 of the brush rod 3 is clamped in the second mounting groove 24 of the connecting member 2, and an external force is applied to the brush rod 3 or the connecting member 2 to separate the brush rod 3 and the connecting member 2 from each other, thereby realizing convenient replacement of the brush rod 3.

[0043] Specifically, the material of the connecting member 2 and the brush rod 3 can be metal, plastic, etc., and the metal is specifically aluminum alloy.

[0044] Specifically, the base 12 and the bristles 11 are an integrated structure. Specifically, the bristles 11 are made using a perming process, and the base 12 is automatically formed at the lower end of the bristles 11 and extends outward along the circumference of the bristles 11. Alternatively, one end of the bristles 11 is welded to a gasket, and the portion of the gasket protruding from the outer circumference of the bristles 11 forms the above-mentioned base 12. The base 12 has a certain mechanical strength. When the base 12 is clamped in the first mounting groove 23, the bristles 11 cannot be easily pulled upward from the opening of the first accommodating cavity 21, thereby playing the role of installing and fixing the bristles 11.

[0045] In this embodiment, the first mounting groove 23 has a rectangular cross-section, and the shape of the base 12 matches the shape of the first mounting groove 23. The rectangular groove provides a larger contact area, ensuring that the base 12 is more firmly fixed and reducing shaking or shifting during use. The second mounting groove 24 has a semicircular cross-section. Correspondingly, the first protrusion 31 has a semicircular cross-section. This allows the first protrusion 31 to smoothly transition into the second mounting groove 24 when the first protrusion 31 engages with the second mounting groove 24, making the assembly process smoother.

[0046] Specifically, refer to Figure 4 、 Figure 11 The brush rod 3 includes an insertion end 32 and a main body end 33. The first protrusion 31 is located on the surface of the insertion end 32. The insertion end 32 is used to be inserted into the second accommodating cavity 22, and the main body end 33 is used for the operator to hold.

[0047] In the first embodiment, reference Figures 1-6 The connecting member 2 also includes a second protrusion 25, which is circumferentially arranged along the side wall 221 of the second accommodating cavity 22, and the second protrusion 25 is arranged between the first mounting groove 23 and the second mounting groove 24. The second protrusion 25, the side wall 221 of the second accommodating cavity 22, and the top wall 222 of the second accommodating cavity 22 enclose the first mounting groove 23. Therefore, the diameter of the first mounting groove 23 is equal to the diameter of the second accommodating cavity 22, and the second mounting groove 24 is formed by the depression of the side wall 221 of the second accommodating cavity 22. The diameter of the second mounting groove 24 is greater than the diameter of the second accommodating cavity 22. The end of the base 12 away from the bristles 11 is used to abut against the second protrusion 25, and the end of the base 12 close to the bristles 11 is used to abut against the top wall 222 of the second accommodating cavity 22, thereby preventing the brush head 1 from moving axially along the second accommodating cavity 22. The side surface of the base 12 abuts against the side wall 221 of the first mounting groove 23 , thereby preventing the brush head 1 from moving radially along the second accommodating cavity 22 .

[0048] In this embodiment, there is one second mounting groove 24 , which is continuously arranged around the circumference of the second accommodating cavity 22 . Accordingly, there is one first protrusion 31 , which is continuously arranged around the circumference of the brush rod 3 .

[0049] In this embodiment, the combing bristles are of a symmetrical structure and are fan-shaped. The brush rod 3 is cylindrical. The diameter of the insertion end 32 of the brush rod 3 is smaller than the maximum diameter of the main body end 33, and the longitudinal cross-sectional dimension of the main body end 33 gradually decreases from the end close to the connecting member 2 to the end away from the connecting member 2.

[0050] In this embodiment, the cross-sectional shape of the second protrusion 25 is an arc shape. When the connecting member 2 and the brush rod are separated, an external force is applied to the brush head 1. The arc-shaped second protrusion 25 can facilitate the removal of the brush head 1 from the second accommodating cavity 22.

[0051] Example 2, reference Figure 7-Figure 8 333 , the first brush rod 331 is connected to the second brush rod 332 and the third brush rod 333 is connected to the second brush rod 332.

[0052] Specifically, the diameter of the insertion end 32 is smaller than the maximum diameter of the first brush rod 331 .

[0053] Example 3, reference Figures 9-13 Unlike the first embodiment, this embodiment does not include the second protrusion 25. Instead, the first mounting groove 23 is formed by a recess in the sidewall 221 of the second accommodating cavity 22. The diameter of the first mounting groove 23 is larger than that of the second accommodating cavity 22. There are multiple second mounting grooves 24, each of which is spaced circumferentially around the second accommodating cavity 22. There are multiple first protrusions 31, each of which is spaced circumferentially around the brush rod 3. The number of first protrusions 31 is the same as the number of second mounting grooves 24, and each second mounting groove 24 is correspondingly provided with a first protrusion 31. The second mounting grooves 24 and the first protrusions 31 engage with each other to restrict axial movement of the connector 2 along the brush rod 3.

[0054] In this embodiment, there are two second mounting grooves 24 and two first protrusions 31 , and the second mounting grooves 24 and the first protrusions 31 are formed as a circular arc segment. The cross-sectional shapes of the second mounting grooves 24 and the first protrusions 31 are the same as those in the first embodiment.

[0055] In embodiment three, the connecting member 2 also includes a third protrusion 26, which is arranged on the side wall 221 of the second accommodating cavity 22, and the third protrusion 26 extends along the axial direction of the second accommodating cavity 22. The third protrusion 26 is arranged between two adjacent second mounting grooves 24, and the insertion end 32 of the brush rod 3 is provided with a third mounting groove 34, which extends along the axial direction of the brush rod 3, and the third mounting groove 34 is used to snap into the third protrusion 26.

[0056] There are multiple third mounting grooves 34, each of which is spaced apart circumferentially around the brush rod 3. There are multiple third protrusions 26, each of which is spaced apart circumferentially around the second accommodating cavity 22. The number of third mounting grooves 34 is the same as the number of third protrusions 26, and each third mounting groove 34 is provided with a corresponding third protrusion 26. The third mounting grooves 34 and the third protrusions 26 engage with each other to restrict radial movement of the connector 2 along the brush rod 3.

[0057] In this embodiment, the number of the third mounting grooves 34 and the number of the third protrusions 26 are both two, and both the third mounting grooves 34 and the third protrusions 26 are in the shape of a cuboid.

[0058] The brush rod 3 of the third embodiment is also different in shape from the brush rod 3 of the first embodiment. In this embodiment, the main body end 33 of the brush rod 3 includes a first brush rod 331, a second brush rod 332 and a third brush rod 333. The first brush rod 331, the second brush rod 332 and the third brush rod 333 are an integrated structure. The first brush rod 331, the second brush rod 332 and the third brush rod 333 are all cylindrical structures. The longitudinal cross-sectional dimension of the first brush rod 331 gradually decreases and then gradually increases from the end close to the connecting member 2 to the end away from the connecting member 2, and the diameter of the end of the first brush rod 331 close to the connecting member 2 is larger than the end away from the connecting member 2, presenting a shape with the middle part contracted inward. The second brush rod 332 is thick at both ends and thin in the middle. The longitudinal cross-sectional dimension of the third brush rod 333 gradually decreases from the end connected to the second brush rod 332 to the end away from the second brush rod 332.

[0059] Specifically, the diameter of the insertion end 32 is smaller than the maximum diameter of the first brush rod 331 .

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A glue-free cosmetic brush, characterized in that: include: A brush head, comprising bristles and a base, wherein the base is provided at one end of the bristles and extends outwardly along the circumference of the bristles; A connecting member, wherein a first accommodating cavity and a second accommodating cavity are formed in the interior of the connecting member, the diameter of the first accommodating cavity is smaller than the diameter of the second accommodating cavity, the bristle portion is located in the first accommodating cavity, a first mounting groove is formed on the side wall of the second accommodating cavity, the first mounting groove is arranged around the circumference of the second accommodating cavity, the first mounting groove is used to install the base, and a second mounting groove is formed on the side wall of the second accommodating cavity, the second mounting groove is arranged around the circumference of the second accommodating cavity; A brush rod, one end of which is provided with a first protrusion, the first protrusion being arranged around the circumference of the brush rod, and the first protrusion being used to be clamped into the second mounting groove.

2. The glue-free cosmetic brush according to claim 1, characterized in that: The connecting member also includes a second protrusion, which is circumferentially arranged along the side wall of the second accommodating cavity. The second protrusion is arranged between the first mounting groove and the second mounting groove. The second protrusion and the second accommodating cavity together form the first mounting groove, and the end of the base away from the bristles is used to abut against the second protrusion.

3. The glue-free cosmetic brush according to claim 2, characterized in that: The second mounting groove is continuously arranged around the circumference of the second accommodating cavity.

4. The glue-free cosmetic brush according to claim 2, characterized in that: The diameter of the first mounting groove is equal to the diameter of the second accommodating cavity, and the diameter of the second mounting groove is greater than the diameter of the second accommodating cavity.

5. The glue-free cosmetic brush according to claim 1, characterized in that: There are multiple second mounting grooves, and the multiple second mounting grooves are arranged at intervals in the circumferential direction around the second accommodating cavity.

6. The glue-free cosmetic brush according to claim 5, characterized in that: There are multiple first protrusions, and the multiple first protrusions are arranged at intervals in the circumferential direction around the brush rod.

7. The glue-free cosmetic brush according to claim 5, characterized in that: The connecting member also includes a third protrusion, which is arranged on the side wall of the second accommodating cavity, and the third protrusion extends along the axial direction of the second accommodating cavity. The third protrusion is arranged between two adjacent second mounting grooves, and a third mounting groove is provided at one end of the brush rod, and the third mounting groove extends along the axial direction of the brush rod, and the third mounting groove is used to snap into the third protrusion.

8. The glue-free cosmetic brush according to claim 7, characterized in that: There are multiple third mounting grooves, and the multiple third mounting grooves are arranged at intervals in the circumferential direction around the brush rod.

9. The glue-free cosmetic brush according to claim 8, characterized in that: There are multiple third protrusions, and the multiple third protrusions are arranged at intervals in the circumferential direction around the second accommodating cavity.

10. The glue-free cosmetic brush according to claim 5, characterized in that: The diameter of the first installation groove is larger than the diameter of the second accommodating cavity, and the diameter of the second installation groove is larger than the diameter of the second accommodating cavity.

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